0.4.9.1

小修复

.github/WORKFLOWS_GUIDE.md

@@ -36,26 +36,24 @@ QODANA_ENDPOINT=https://qodana.cloud
 ```
 
 ### 3. Release & Publish (`release.yml`)
-**Trigger:** Push git tags (v1.0.0, release-1.0.0), or manual workflow dispatch
+**Trigger:** Push git tags (`v*`, e.g. `v1.0.0`), or manual workflow dispatch
 
 **What it does:**
-- Builds for **Windows** (x64, x86) - self-contained executables
-- Builds for **Linux** (x64) - tar.gz packages
-- Builds for **macOS** (x64, arm64) - universal support
+- Builds **Windows** installers (x64, x86) via Inno Setup
+- Builds **Linux** packages (x64) as `.deb`
+- Builds **macOS** packages (x64, arm64) as `.dmg`
 - Publishes optimized release builds for all platforms
-- Generates GitHub Release with all platform artifacts
+- Generates GitHub Release with installer/package assets
 - Supports pre-release versions
 
 **Supported Platforms:**
 | Platform | Architectures | Output Format | Status |
 |----------|---------------|---------------|--------|
-| Windows | x64, x86 | .zip | ✅ Full support |
-| Linux | x64 | .tar.gz | ✅ Full support |
-| macOS | x64, arm64 (Apple Silicon) | .tar.gz | ✅ Full support |
+| Windows | x64, x86 | .exe (installer) | ✅ Full support |
+| Linux | x64 | .deb | ✅ Full support |
+| macOS | x64, arm64 (Apple Silicon) | .dmg | ✅ Full support |
 
-**Build Scripts:**
-- Windows: Uses PowerShell (`LanMountainDesktop\scripts\package.ps1`)
-- Linux/macOS: Uses Bash (`scripts/build.sh`)
+> Note: GitHub Actions artifacts are downloaded as zip containers. The actual packaged files inside are `.exe`, `.deb`, and `.dmg`.
 
 **Usage:**
 
@@ -66,13 +64,9 @@ git push origin v1.0.0
 # Automatically triggers Windows + Linux + macOS builds
 ```
 
-*Manual trigger with selective platforms:*
+*Manual trigger:*
 Go to GitHub > Actions > Release & Publish > Run workflow
-- Specify version: `1.0.0`
-- Toggle build targets as needed:
-  - ✅ Build Windows (x64/x86)
-  - ✅ Build Linux (x64)
-  - ✅ Build macOS (x64/arm64)
+- Specify release tag: `v1.0.0` (or `1.0.0`, workflow will normalize to `v1.0.0`)
 - Check pre-release option if needed
 
 ### 4. Issue Management (`issue-management.yml`)

.github/workflows/build.yml

@@ -2,6 +2,8 @@
 
 on:
   push:
+    tags-ignore:
+      - '*'
   pull_request:
   workflow_dispatch:
 

.github/workflows/release.yml

@@ -26,24 +26,36 @@ jobs:
     outputs:
       version: ${{ steps.version.outputs.version }}
       tag: ${{ steps.version.outputs.tag }}
+      checkout_ref: ${{ steps.version.outputs.checkout_ref }}
     
     steps:
       - name: Get release info
         id: version
         run: |
           if [[ "${{ github.event_name }}" == "push" ]]; then
-            TAG=${GITHUB_REF#refs/tags/}
+            TAG="${GITHUB_REF#refs/tags/}"
+            CHECKOUT_REF="${GITHUB_REF}"
           else
-            TAG=${{ github.event.inputs.tag }}
+            RAW_TAG="${{ github.event.inputs.tag }}"
+            if [[ "${RAW_TAG}" == refs/tags/* ]]; then
+              TAG="${RAW_TAG#refs/tags/}"
+            elif [[ "${RAW_TAG}" == v* ]]; then
+              TAG="${RAW_TAG}"
+            else
+              TAG="v${RAW_TAG}"
+            fi
+            CHECKOUT_REF="${GITHUB_SHA}"
           fi
-          VERSION=${TAG#v}
+          VERSION="${TAG#v}"
           echo "tag=${TAG}" >> $GITHUB_OUTPUT
           echo "version=${VERSION}" >> $GITHUB_OUTPUT
+          echo "checkout_ref=${CHECKOUT_REF}" >> $GITHUB_OUTPUT
 
   build-windows:
     needs: prepare
     runs-on: windows-latest
     strategy:
+      fail-fast: false
       matrix:
         arch: [x64, x86]
     name: Build_Windows_${{ matrix.arch }}
@@ -54,7 +66,7 @@ jobs:
         with:
           fetch-depth: 0
           submodules: recursive
-          ref: ${{ github.event_name == 'workflow_dispatch' && github.event.inputs.tag || github.ref }}
+          ref: ${{ needs.prepare.outputs.checkout_ref }}
 
       - name: Setup .NET
         uses: actions/setup-dotnet@v4
@@ -89,13 +101,12 @@ jobs:
             -o ./publish/windows-${{ matrix.arch }} `
             --self-contained `
             -r win-${{ matrix.arch }} `
-            -p:PublishSingleFile=true `
+            -p:PublishSingleFile=false `
             -p:SelfContained=true `
             -p:DebugType=none `
             -p:DebugSymbols=false `
-            -p:PublishTrimmed=true `
-            -p:TrimMode=partial `
-            -p:PublishReadyToRun=true
+            -p:PublishTrimmed=false `
+            -p:PublishReadyToRun=false
         shell: pwsh
 
       - name: Install Inno Setup
@@ -126,14 +137,36 @@ jobs:
             exit 1
           }
           
-          # Find Inno Setup compiler
-          $isccPath = "C:\Program Files (x86)\Inno Setup 6\ISCC.exe"
-          if (-not (Test-Path -Path $isccPath)) {
-            $isccPath = "C:\Program Files\Inno Setup 6\ISCC.exe"
+          # Find Inno Setup compiler (choco may install a shim in PATH)
+          $isccPath = $null
+          $isccCommand = Get-Command ISCC.exe -ErrorAction SilentlyContinue
+          if ($isccCommand) {
+            $isccPath = $isccCommand.Source
           }
-          
-          if (-not (Test-Path -Path $isccPath)) {
-            Write-Error "Inno Setup compiler not found at: $isccPath"
+
+          $candidatePaths = @(
+            "C:\Program Files (x86)\Inno Setup 6\ISCC.exe",
+            "C:\Program Files\Inno Setup 6\ISCC.exe",
+            "$env:ChocolateyInstall\bin\ISCC.exe",
+            "$env:ChocolateyInstall\lib\innosetup\tools\ISCC.exe"
+          )
+
+          if (-not $isccPath) {
+            foreach ($candidate in $candidatePaths) {
+              if ($candidate -and (Test-Path -Path $candidate)) {
+                $isccPath = $candidate
+                break
+              }
+            }
+          }
+
+          if (-not $isccPath) {
+            Write-Host "ISCC.exe was not found in PATH or known locations."
+            Write-Host "Checked locations:"
+            $candidatePaths | ForEach-Object { Write-Host " - $_" }
+            Write-Host "Chocolatey bin listing (if exists):"
+            Get-ChildItem "$env:ChocolateyInstall\bin" -Filter "*iscc*" -ErrorAction SilentlyContinue | Select-Object FullName
+            Write-Error "Inno Setup compiler not found."
             exit 1
           }
           
@@ -142,20 +175,26 @@ jobs:
           # Build installer with iscc.exe
           Write-Host "Building installer for Windows $arch with version $version..."
           
-          $compileCmd = @(
-            "`"$isccPath`"",
+          $publishDir = (Resolve-Path $publishDir).Path
+          $outputDir = (Resolve-Path $outputDir).Path
+          $installerScript = (Resolve-Path $installerScript).Path
+
+          $compileArgs = @(
             "/DMyAppVersion=$version",
-            "/DPublishDir=..\$publishDir",
-            "/DMyOutputDir=..\$outputDir",
+            "/DPublishDir=$publishDir",
+            "/DMyOutputDir=$outputDir",
             "/DMyAppArch=$arch",
-            "`"$installerScript`""
-          ) -join " "
+            $installerScript
+          )
           
-          Write-Host "Compile command: $compileCmd"
+          Write-Host "Compile command: `"$isccPath`" $($compileArgs -join ' ')"
           
           # Execute the compiler
-          $output = Invoke-Expression $compileCmd 2>&1
-          Write-Host $output
+          & $isccPath @compileArgs
+          if ($LASTEXITCODE -ne 0) {
+            Write-Error "Inno Setup compiler exited with code $LASTEXITCODE"
+            exit 1
+          }
           
           # Check if build was successful
           $installerFile = Get-ChildItem -Path $outputDir -Filter "*.exe" -ErrorAction SilentlyContinue | Select-Object -First 1
@@ -173,6 +212,7 @@ jobs:
         with:
           name: release-windows-${{ matrix.arch }}
           path: build-installer/*.exe
+          if-no-files-found: error
           retention-days: 30
 
   build-linux:
@@ -186,7 +226,7 @@ jobs:
         with:
           fetch-depth: 0
           submodules: recursive
-          ref: ${{ github.event_name == 'workflow_dispatch' && github.event.inputs.tag || github.ref }}
+          ref: ${{ needs.prepare.outputs.checkout_ref }}
 
       - name: Install dependencies
         run: |
@@ -221,13 +261,12 @@ jobs:
             -o ./publish/linux-x64 \
             --self-contained \
             -r linux-x64 \
-            -p:PublishSingleFile=true \
+            -p:PublishSingleFile=false \
             -p:SelfContained=true \
             -p:DebugType=none \
             -p:DebugSymbols=false \
-            -p:PublishTrimmed=true \
-            -p:TrimMode=partial \
-            -p:PublishReadyToRun=true
+            -p:PublishTrimmed=false \
+            -p:PublishReadyToRun=false
 
       - name: Package as DEB
         run: |
@@ -236,6 +275,8 @@ jobs:
           package_name="LanMountainDesktop"
           package_version="${version}"
           arch="amd64"
+          desktop_template="LanMountainDesktop/packaging/linux/LanMountainDesktop.desktop"
+          icon_source="LanMountainDesktop/packaging/linux/lanmountaindesktop.png"
           
           # Verify source directory exists
           if [ ! -d "$source" ]; then
@@ -249,6 +290,7 @@ jobs:
           mkdir -p "build-deb/usr/local/bin"
           mkdir -p "build-deb/usr/share/applications"
           mkdir -p "build-deb/usr/share/pixmaps"
+          mkdir -p "build-deb/usr/share/icons/hicolor/256x256/apps"
           
           # Copy application files
           cp -r "$source"/* "build-deb/usr/local/bin/"
@@ -261,19 +303,48 @@ jobs:
             echo "Error: DEB package is empty after copy"
             exit 1
           fi
+
+          if [ ! -f "$desktop_template" ] || [ ! -f "$icon_source" ]; then
+            echo "Error: Linux desktop resources are missing"
+            ls -la "LanMountainDesktop/packaging/linux" || true
+            exit 1
+          fi
+
+          sed \
+            -e "s|@@EXEC@@|/usr/local/bin/LanMountainDesktop|g" \
+            -e "s|@@ICON@@|lanmountaindesktop|g" \
+            "$desktop_template" > "build-deb/usr/share/applications/LanMountainDesktop.desktop"
+
+          cp "$icon_source" "build-deb/usr/share/pixmaps/lanmountaindesktop.png"
+          cp "$icon_source" "build-deb/usr/share/icons/hicolor/256x256/apps/lanmountaindesktop.png"
+
+          {
+            printf '%s\n' '#!/bin/sh'
+            printf '%s\n' 'set -e'
+            printf '%s\n' 'if command -v update-desktop-database >/dev/null 2>&1; then'
+            printf '%s\n' '  update-desktop-database /usr/share/applications >/dev/null 2>&1 || true'
+            printf '%s\n' 'fi'
+            printf '%s\n' 'if command -v gtk-update-icon-cache >/dev/null 2>&1; then'
+            printf '%s\n' '  gtk-update-icon-cache /usr/share/icons/hicolor >/dev/null 2>&1 || true'
+            printf '%s\n' 'fi'
+          } > "build-deb/DEBIAN/postinst"
           
           # Create control file (NOTE: No leading spaces in control file)
-          cat > "build-deb/DEBIAN/control" << EOF
-Package: $package_name
-Version: $package_version
-Architecture: $arch
-Maintainer: LanMountain Team <dev@example.com>
-Description: LanMountain Desktop Application
- A desktop application for LanMountain.
-EOF
+          {
+            printf '%s\n' "Package: $package_name"
+            printf '%s\n' "Version: $package_version"
+            printf '%s\n' "Architecture: $arch"
+            printf '%s\n' "Maintainer: LanMountain Team <dev@example.com>"
+            printf '%s\n' "Description: LanMountain Desktop Application"
+            printf '%s\n' " A desktop application for LanMountain."
+          } > "build-deb/DEBIAN/control"
           
           # Set proper permissions
           chmod 755 "build-deb/usr/local/bin/LanMountainDesktop" || chmod 755 "build-deb/usr/local/bin"/*
+          chmod 644 "build-deb/usr/share/applications/LanMountainDesktop.desktop"
+          chmod 644 "build-deb/usr/share/pixmaps/lanmountaindesktop.png"
+          chmod 644 "build-deb/usr/share/icons/hicolor/256x256/apps/lanmountaindesktop.png"
+          chmod 755 "build-deb/DEBIAN/postinst"
           
           # Create DEB file
           if dpkg-deb --build "build-deb" "${package_name}_${package_version}_${arch}.deb"; then
@@ -289,6 +360,7 @@ EOF
         with:
           name: release-linux
           path: "*.deb"
+          if-no-files-found: error
           retention-days: 30
 
   build-macos:
@@ -305,7 +377,7 @@ EOF
         with:
           fetch-depth: 0
           submodules: recursive
-          ref: ${{ github.event_name == 'workflow_dispatch' && github.event.inputs.tag || github.ref }}
+          ref: ${{ needs.prepare.outputs.checkout_ref }}
 
       - name: Setup .NET
         uses: actions/setup-dotnet@v4
@@ -331,13 +403,12 @@ EOF
             -o ./publish/macos-${{ matrix.arch }} \
             --self-contained \
             -r osx-${{ matrix.arch }} \
-            -p:PublishSingleFile=true \
+            -p:PublishSingleFile=false \
             -p:SelfContained=true \
             -p:DebugType=none \
             -p:DebugSymbols=false \
-            -p:PublishTrimmed=true \
-            -p:TrimMode=partial \
-            -p:PublishReadyToRun=true
+            -p:PublishTrimmed=false \
+            -p:PublishReadyToRun=false
 
       - name: Package as DMG
         run: |
@@ -370,27 +441,27 @@ EOF
             exit 1
           fi
 
-          # Create Info.plist - NOTE: Using unquoted EOF to allow variable expansion
-          cat > "${app_name}.app/Contents/Info.plist" << EOF
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-  <key>CFBundleExecutable</key>
-  <string>LanMountainDesktop</string>
-  <key>CFBundleName</key>
-  <string>LanMountain Desktop</string>
-  <key>CFBundleVersion</key>
-  <string>$version</string>
-  <key>CFBundleShortVersionString</key>
-  <string>$version</string>
-  <key>CFBundleIdentifier</key>
-  <string>com.lanmountain.desktop</string>
-  <key>CFBundlePackageType</key>
-  <string>APPL</string>
-</dict>
-</plist>
-EOF
+          # Create Info.plist
+          {
+            printf '%s\n' '<?xml version="1.0" encoding="UTF-8"?>'
+            printf '%s\n' '<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">'
+            printf '%s\n' '<plist version="1.0">'
+            printf '%s\n' '<dict>'
+            printf '%s\n' '  <key>CFBundleExecutable</key>'
+            printf '%s\n' '  <string>LanMountainDesktop</string>'
+            printf '%s\n' '  <key>CFBundleName</key>'
+            printf '%s\n' '  <string>LanMountain Desktop</string>'
+            printf '%s\n' '  <key>CFBundleVersion</key>'
+            printf '%s\n' "  <string>$version</string>"
+            printf '%s\n' '  <key>CFBundleShortVersionString</key>'
+            printf '%s\n' "  <string>$version</string>"
+            printf '%s\n' '  <key>CFBundleIdentifier</key>'
+            printf '%s\n' '  <string>com.lanmountain.desktop</string>'
+            printf '%s\n' '  <key>CFBundlePackageType</key>'
+            printf '%s\n' '  <string>APPL</string>'
+            printf '%s\n' '</dict>'
+            printf '%s\n' '</plist>'
+          } > "${app_name}.app/Contents/Info.plist"
           
           # Create DMG
           mkdir -p dmg-temp
@@ -412,12 +483,12 @@ EOF
         with:
           name: release-macos-${{ matrix.arch }}
           path: "*.dmg"
+          if-no-files-found: error
           retention-days: 30
 
   github-release:
     needs: [ prepare, build-windows, build-linux, build-macos ]
     runs-on: ubuntu-latest
-    if: startsWith(github.ref, 'refs/tags/')
     permissions:
       contents: write
     
@@ -428,13 +499,44 @@ EOF
           path: artifacts
           pattern: release-*
 
+      - name: List artifacts structure
+        run: |
+          echo "🔍 Artifact directory structure:"
+          find artifacts -type f -o -type d | sort
+          echo ""
+          echo "📊 Files found:"
+          find artifacts -type f -exec ls -lh {} \;
+          echo ""
+          echo "📁 Full tree:"
+          tree artifacts || find artifacts -print | sed -e 's;[^/]*/;|____;g;s;____|; |;g'
+
+      - name: Flatten artifacts for release
+        run: |
+          echo "📦 Organizing artifacts..."
+          mkdir -p release-files
+          find artifacts -type f \( -name "*.exe" -o -name "*.deb" -o -name "*.dmg" \) -exec cp -v {} release-files/ \;
+          echo ""
+          echo "✅ Files ready for release:"
+          ls -lh release-files/ || echo "⚠️ No files found in release-files"
+          echo ""
+          echo "📋 Total files:"
+          file_count=$(find release-files -type f | wc -l)
+          echo "$file_count"
+          if [ "$file_count" -eq 0 ]; then
+            echo "Error: No installer/package files found for release"
+            exit 1
+          fi
+
       - name: Create Release
         uses: ncipollo/release-action@v1
         with:
-          tag: ${{ github.ref_name }}
+          tag: ${{ needs.prepare.outputs.tag }}
+          name: ${{ needs.prepare.outputs.tag }}
+          commit: ${{ github.sha }}
+          allowUpdates: true
           draft: false
           prerelease: ${{ github.event.inputs.is_prerelease == 'true' }}
-          artifacts: artifacts/**/*
+          artifacts: "release-files/**"
           body: |
             ## Release ${{ needs.prepare.outputs.version }}
             

.gitignore

@@ -481,3 +481,4 @@ $RECYCLE.BIN/
 # Vim temporary swap files
 *.swp
 nul
+/publish-test

LanMountainDesktop/App.axaml

@@ -15,10 +15,26 @@
     <Application.DataTemplates>
         <local:ViewLocator/>
     </Application.DataTemplates>
+
+    <TrayIcon.Icons>
+        <TrayIcons>
+            <TrayIcon Icon="/Assets/avalonia-logo.ico"
+                      ToolTipText="LanMountainDesktop">
+                <TrayIcon.Menu>
+                    <NativeMenu>
+                        <NativeMenuItem Header="重启应用" Click="OnTrayRestartClick" />
+                        <NativeMenuItemSeparator />
+                        <NativeMenuItem Header="退出应用" Click="OnTrayExitClick" />
+                    </NativeMenu>
+                </TrayIcon.Menu>
+            </TrayIcon>
+        </TrayIcons>
+    </TrayIcon.Icons>
   
     <Application.Styles>
         <sty:FluentAvaloniaTheme />
         <mi:MaterialIconStyles />
+        <StyleInclude Source="avares://LanMountainDesktop/Styles/FluttermotionToken.axaml" />
         <StyleInclude Source="avares://LanMountainDesktop/Styles/GlassModule.axaml" />
         <StyleInclude Source="avares://LanMountainDesktop/Styles/SettingsAnimations.axaml" />
 

LanMountainDesktop/App.axaml.cs

@@ -2,8 +2,11 @@
 using Avalonia.Controls.ApplicationLifetimes;
 using Avalonia.Data.Core;
 using Avalonia.Data.Core.Plugins;
+using System;
+using System.Diagnostics;
 using System.Linq;
 using Avalonia.Markup.Xaml;
+using LanMountainDesktop.Services;
 using LanMountainDesktop.ViewModels;
 using LanMountainDesktop.Views;
 using AvaloniaWebView;
@@ -14,12 +17,15 @@ public partial class App : Application
 {
     public override void Initialize()
     {
+        ConfigureWebViewUserDataFolder();
         AvaloniaWebViewBuilder.Initialize(default);
         AvaloniaXamlLoader.Load(this);
     }
 
     public override void OnFrameworkInitializationCompleted()
     {
+        LinuxDesktopEntryInstaller.EnsureInstalled();
+
         if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
         {
             // Avoid duplicate validations from both Avalonia and the CommunityToolkit. 
@@ -34,6 +40,57 @@ public partial class App : Application
         base.OnFrameworkInitializationCompleted();
     }
 
+    private void OnTrayExitClick(object? sender, EventArgs e)
+    {
+        if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
+        {
+            desktop.Shutdown();
+        }
+    }
+
+    private void OnTrayRestartClick(object? sender, EventArgs e)
+    {
+        if (ApplicationLifetime is not IClassicDesktopStyleApplicationLifetime desktop)
+        {
+            return;
+        }
+
+        if (TryStartCurrentProcess())
+        {
+            desktop.Shutdown();
+        }
+    }
+
+    private static bool TryStartCurrentProcess()
+    {
+        try
+        {
+            var args = Environment.GetCommandLineArgs();
+            if (args.Length == 0 || string.IsNullOrWhiteSpace(args[0]))
+            {
+                return false;
+            }
+
+            var startInfo = new ProcessStartInfo
+            {
+                FileName = args[0],
+                UseShellExecute = false
+            };
+
+            for (var i = 1; i < args.Length; i++)
+            {
+                startInfo.ArgumentList.Add(args[i]);
+            }
+
+            Process.Start(startInfo);
+            return true;
+        }
+        catch
+        {
+            return false;
+        }
+    }
+
     private void DisableAvaloniaDataAnnotationValidation()
     {
         // Get an array of plugins to remove
@@ -46,4 +103,31 @@ public partial class App : Application
             BindingPlugins.DataValidators.Remove(plugin);
         }
     }
+
+    private static void ConfigureWebViewUserDataFolder()
+    {
+        if (!OperatingSystem.IsWindows())
+        {
+            return;
+        }
+
+        const string userDataFolderEnvVar = "WEBVIEW2_USER_DATA_FOLDER";
+        try
+        {
+            if (!string.IsNullOrWhiteSpace(Environment.GetEnvironmentVariable(userDataFolderEnvVar)))
+            {
+                return;
+            }
+
+            var userDataFolder = WebView2RuntimeProbe.ResolveUserDataFolder();
+            Environment.SetEnvironmentVariable(
+                userDataFolderEnvVar,
+                userDataFolder,
+                EnvironmentVariableTarget.Process);
+        }
+        catch
+        {
+            // Keep startup resilient if user profile folders are unavailable.
+        }
+    }
 }

LanMountainDesktop/Assets/Weather/HyperOS3/ATTRIBUTION.md

@@ -36,3 +36,20 @@ Extracted weather icon paths inside APK (`res/*.webp`):
 - `res/Mg.webp` -> `Icons/icon_windy.webp`
 
 Use only according to Xiaomi's applicable license and usage terms.
+
+## Soft Widget Icon Set (2026-03-05)
+
+To better match the Xiaomi weather time-card visual hierarchy, an additional local icon set was generated for this project:
+
+- `Icons/icon_hero_sun_soft.png`
+- `Icons/icon_hero_moon_soft.png`
+- `Icons/icon_mini_partly_cloudy_day_soft.png`
+- `Icons/icon_mini_partly_cloudy_night_soft.png`
+- `Icons/icon_mini_cloudy_soft.png`
+- `Icons/icon_mini_rain_light_soft.png`
+- `Icons/icon_mini_rain_heavy_soft.png`
+- `Icons/icon_mini_storm_soft.png`
+- `Icons/icon_mini_snow_soft.png`
+- `Icons/icon_mini_fog_soft.png`
+
+These files are original derivative assets generated in-repo with local tooling, using the extracted Xiaomi package visual direction as reference (soft glow hero icon + lightweight forecast icons).

LanMountainDesktop/Behaviors/PanelIntroAnimationBehavior.cs

@@ -3,6 +3,7 @@ using System.Linq;
 using Avalonia;
 using Avalonia.Controls;
 using Avalonia.Threading;
+using LanMountainDesktop.Theme;
 
 namespace LanMountainDesktop.Behaviors;
 
@@ -109,7 +110,7 @@ public class PanelIntroAnimationBehavior
         var index = 0;
         var timer = new DispatcherTimer(DispatcherPriority.Background)
         {
-            Interval = TimeSpan.FromMilliseconds(24)
+            Interval = FluttermotionToken.StaggerStepInterval
         };
         timer.Tick += (_, _) =>
         {

LanMountainDesktop/Behaviors/PopupIntroAnimationBehavior.cs

@@ -4,11 +4,14 @@ using Avalonia.Animation.Easings;
 using Avalonia.Controls;
 using Avalonia.Controls.Primitives;
 using Avalonia.Rendering.Composition;
+using LanMountainDesktop.Theme;
 
 namespace LanMountainDesktop.Behaviors;
 
 public class PopupIntroAnimationBehavior
 {
+    private static readonly Easing StandardEasing = Easing.Parse(FluttermotionToken.StandardBezier);
+
     public static readonly AttachedProperty<bool> IsEnabledProperty =
         AvaloniaProperty.RegisterAttached<PopupIntroAnimationBehavior, Control, bool>("IsEnabled");
 
@@ -94,16 +97,16 @@ public class PopupIntroAnimationBehavior
 
         var opacityAnimation = compositor.CreateScalarKeyFrameAnimation();
         opacityAnimation.Target = nameof(compositionVisual.Opacity);
-        opacityAnimation.Duration = TimeSpan.FromMilliseconds(160);
+        opacityAnimation.Duration = FluttermotionToken.Standard;
         opacityAnimation.InsertKeyFrame(0f, 0f);
-        opacityAnimation.InsertKeyFrame(1f, 1f, Easing.Parse("0.22, 1, 0.36, 1"));
+        opacityAnimation.InsertKeyFrame(1f, 1f, StandardEasing);
         compositionVisual.StartAnimation(nameof(compositionVisual.Opacity), opacityAnimation);
 
         var scaleAnimation = compositor.CreateVector3DKeyFrameAnimation();
         scaleAnimation.Target = nameof(compositionVisual.Scale);
-        scaleAnimation.Duration = TimeSpan.FromMilliseconds(160);
+        scaleAnimation.Duration = FluttermotionToken.Standard;
         scaleAnimation.InsertKeyFrame(0f, compositionVisual.Scale with { X = 0.94, Y = 0.94 });
-        scaleAnimation.InsertKeyFrame(1f, compositionVisual.Scale with { X = 1, Y = 1 }, Easing.Parse("0.22, 1, 0.36, 1"));
+        scaleAnimation.InsertKeyFrame(1f, compositionVisual.Scale with { X = 1, Y = 1 }, StandardEasing);
         compositionVisual.StartAnimation(nameof(compositionVisual.Scale), scaleAnimation);
     }
 

LanMountainDesktop/ComponentSystem/BuiltInComponentIds.cs

@@ -5,6 +5,7 @@ public static class BuiltInComponentIds
     public const string Clock = "Clock";
     public const string DesktopClock = "DesktopClock";
     public const string DesktopWeatherClock = "DesktopWeatherClock";
+    public const string DesktopWorldClock = "DesktopWorldClock";
     public const string DesktopTimer = "DesktopTimer";
     public const string DesktopWeather = "DesktopWeather";
     public const string DesktopHourlyWeather = "DesktopHourlyWeather";
@@ -28,6 +29,14 @@ public static class BuiltInComponentIds
     public const string HolidayCalendar = "HolidayCalendar";
     public const string DesktopDailyPoetry = "DesktopDailyPoetry";
     public const string DesktopDailyArtwork = "DesktopDailyArtwork";
+    public const string DesktopDailyWord = "DesktopDailyWord";
+    public const string DesktopDailyWord2x2 = "DesktopDailyWord2x2";
+    public const string DesktopCnrDailyNews = "DesktopCnrDailyNews";
+    public const string DesktopIfengNews = "DesktopIfengNews";
+    public const string DesktopBilibiliHotSearch = "DesktopBilibiliHotSearch";
+    public const string DesktopBaiduHotSearch = "DesktopBaiduHotSearch";
+    public const string DesktopStcn24Forum = "DesktopStcn24Forum";
+    public const string DesktopExchangeRateCalculator = "DesktopExchangeRateCalculator";
     public const string DesktopWhiteboard = "DesktopWhiteboard";
     public const string DesktopBlackboardLandscape = "DesktopBlackboardLandscape";
     public const string DesktopBrowser = "DesktopBrowser";

LanMountainDesktop/ComponentSystem/ComponentRegistry.cs

@@ -48,6 +48,15 @@ public sealed class ComponentRegistry
                 MinHeightCells: 1,
                 AllowStatusBarPlacement: false,
                 AllowDesktopPlacement: true),
+            new DesktopComponentDefinition(
+                BuiltInComponentIds.DesktopWorldClock,
+                "World Clock",
+                "Clock",
+                "Clock",
+                MinWidthCells: 4,
+                MinHeightCells: 2,
+                AllowStatusBarPlacement: false,
+                AllowDesktopPlacement: true),
             new DesktopComponentDefinition(
                 BuiltInComponentIds.DesktopTimer,
                 "Timer",
@@ -216,6 +225,78 @@ public sealed class ComponentRegistry
                 MinHeightCells: 2,
                 AllowStatusBarPlacement: false,
                 AllowDesktopPlacement: true),
+            new DesktopComponentDefinition(
+                BuiltInComponentIds.DesktopDailyWord,
+                "Daily Word",
+                "Book",
+                "Info",
+                MinWidthCells: 4,
+                MinHeightCells: 2,
+                AllowStatusBarPlacement: false,
+                AllowDesktopPlacement: true),
+            new DesktopComponentDefinition(
+                BuiltInComponentIds.DesktopDailyWord2x2,
+                "Daily Word 2x2",
+                "Book",
+                "Info",
+                MinWidthCells: 2,
+                MinHeightCells: 2,
+                AllowStatusBarPlacement: false,
+                AllowDesktopPlacement: true),
+            new DesktopComponentDefinition(
+                BuiltInComponentIds.DesktopCnrDailyNews,
+                "CNR Daily News",
+                "News",
+                "Info",
+                MinWidthCells: 4,
+                MinHeightCells: 2,
+                AllowStatusBarPlacement: false,
+                AllowDesktopPlacement: true),
+            new DesktopComponentDefinition(
+                BuiltInComponentIds.DesktopIfengNews,
+                "iFeng News",
+                "News",
+                "Info",
+                MinWidthCells: 4,
+                MinHeightCells: 4,
+                AllowStatusBarPlacement: false,
+                AllowDesktopPlacement: true),
+            new DesktopComponentDefinition(
+                BuiltInComponentIds.DesktopBilibiliHotSearch,
+                "Bilibili Hot Search",
+                "News",
+                "Info",
+                MinWidthCells: 4,
+                MinHeightCells: 2,
+                AllowStatusBarPlacement: false,
+                AllowDesktopPlacement: true),
+            new DesktopComponentDefinition(
+                BuiltInComponentIds.DesktopBaiduHotSearch,
+                "Baidu Hot Search",
+                "News",
+                "Info",
+                MinWidthCells: 4,
+                MinHeightCells: 2,
+                AllowStatusBarPlacement: false,
+                AllowDesktopPlacement: true),
+            new DesktopComponentDefinition(
+                BuiltInComponentIds.DesktopStcn24Forum,
+                "STCN 24",
+                "News",
+                "Info",
+                MinWidthCells: 4,
+                MinHeightCells: 4,
+                AllowStatusBarPlacement: false,
+                AllowDesktopPlacement: true),
+            new DesktopComponentDefinition(
+                BuiltInComponentIds.DesktopExchangeRateCalculator,
+                "Exchange Rate Converter",
+                "Calculator",
+                "Calculator",
+                MinWidthCells: 4,
+                MinHeightCells: 4,
+                AllowStatusBarPlacement: false,
+                AllowDesktopPlacement: true),
             new DesktopComponentDefinition(
                 BuiltInComponentIds.DesktopWhiteboard,
                 "Blackboard Portrait",

LanMountainDesktop/LanMountainDesktop.csproj

@@ -6,30 +6,17 @@
     <Version>1.0.0</Version>
     <ApplicationManifest>app.manifest</ApplicationManifest>
     <AvaloniaUseCompiledBindingsByDefault>true</AvaloniaUseCompiledBindingsByDefault>
-    
-    <!-- Release build optimizations -->
-    <PublishSingleFile Condition="'$(Configuration)' == 'Release'">true</PublishSingleFile>
-    <PublishTrimmed Condition="'$(Configuration)' == 'Release'">true</PublishTrimmed>
-    <TrimMode Condition="'$(Configuration)' == 'Release'">partial</TrimMode>
-    <PublishReadyToRun Condition="'$(Configuration)' == 'Release'">true</PublishReadyToRun>
-    <DebugSymbols Condition="'$(Configuration)' == 'Release'">false</DebugSymbols>
     <SelfContained Condition="'$(RuntimeIdentifier)' != ''">true</SelfContained>
   </PropertyGroup>
 
-  <!-- Release build optimizations for smaller, faster packages -->
+  <!-- Keep Release defaults compatibility-first for desktop dependencies (WebView/interop/reflection). -->
   <PropertyGroup Condition="'$(Configuration)' == 'Release'">
-    <PublishSingleFile>true</PublishSingleFile>
-    <PublishTrimmed>true</PublishTrimmed>
-    <TrimMode>partial</TrimMode>
-    <PublishReadyToRun>true</PublishReadyToRun>
+    <PublishSingleFile>false</PublishSingleFile>
+    <PublishTrimmed>false</PublishTrimmed>
+    <PublishReadyToRun>false</PublishReadyToRun>
     <DebugSymbols>false</DebugSymbols>
     <DebugType>none</DebugType>
   </PropertyGroup>
-
-  <!-- Self-contained runtime settings -->
-  <PropertyGroup Condition="'$(RuntimeIdentifier)' != ''">
-    <SelfContained>true</SelfContained>
-  </PropertyGroup>
   <ItemGroup>
     <Folder Include="Models\" />
     <AvaloniaResource Include="Assets\**" />

LanMountainDesktop/Localization/en-US.json

@@ -12,6 +12,9 @@
     "settings.nav.status_bar":  "Status Bar",
     "settings.nav.weather":  "Weather",
     "settings.nav.region":  "Region",
+    "settings.nav.update":  "Update",
+    "settings.nav.launcher":  "App Launcher",
+    "settings.nav.plugins":  "Plugins",
     "settings.nav.about":  "About",
     "settings.wallpaper.title":  "Wallpaper",
     "settings.wallpaper.description":  "Pick an image or video to apply as the app window wallpaper immediately.",
@@ -162,6 +165,21 @@
     "schedule.settings.delete":  "Delete",
     "schedule.settings.picker_title":  "Select ClassIsland schedule file",
     "schedule.settings.picker_file_type":  "ClassIsland CSES schedule",
+    "worldclock.settings.title":  "World Clock Settings",
+    "worldclock.settings.desc":  "Choose a time zone for each of the four clocks.",
+    "worldclock.settings.clock_1":  "Clock 1",
+    "worldclock.settings.clock_2":  "Clock 2",
+    "worldclock.settings.clock_3":  "Clock 3",
+    "worldclock.settings.clock_4":  "Clock 4",
+    "worldclock.settings.second_mode_label":  "Second Hand",
+    "worldclock.widget.today":  "Today",
+    "worldclock.widget.yesterday":  "Yesterday",
+    "worldclock.widget.tomorrow":  "Tomorrow",
+    "worldclock.widget.offset_same":  "0h",
+    "worldclock.widget.offset_ahead_hours":  "Ahead {0}h",
+    "worldclock.widget.offset_behind_hours":  "Behind {0}h",
+    "worldclock.widget.offset_ahead_hm":  "Ahead {0}h {1}m",
+    "worldclock.widget.offset_behind_hm":  "Behind {0}h {1}m",
     "weather.widget.aqi_unknown":  "AQI --",
     "weather.widget.aqi_format":  "AQI {0}",
     "weather.widget.updated_format":  "Updated {0:HH:mm}",
@@ -180,10 +198,45 @@
     "settings.region.timezone_header":  "Time Zone",
     "settings.region.timezone_desc":  "Select a time zone. Clock and calendar widgets will follow this zone.",
     "settings.region.applied_format":  "Language switched to: {0}",
+    "settings.update.title":  "Update",
+    "settings.update.current_version_label":  "Current Version",
+    "settings.update.latest_version_label":  "Latest Release",
+    "settings.update.published_at_label":  "Published At",
+    "settings.update.options_header":  "Update Options",
+    "settings.update.options_desc":  "Configure update checks and release channel.",
+    "settings.update.auto_check_toggle":  "Automatically check for updates on startup",
+    "settings.update.include_prerelease_toggle":  "Include prerelease versions",
+    "settings.update.channel_label":  "Update Channel",
+    "settings.update.channel_stable":  "Stable",
+    "settings.update.channel_preview":  "Preview",
+    "settings.update.actions_header":  "Update Actions",
+    "settings.update.actions_desc":  "Check releases, download installer, and start update.",
+    "settings.update.check_button":  "Check for Updates",
+    "settings.update.download_install_button":  "Download & Install",
+    "settings.update.download_progress_idle":  "Download progress: -",
+    "settings.update.download_progress_format":  "Download progress: {0:F0}%",
+    "settings.update.status_ready":  "Ready to check for updates.",
+    "settings.update.status_channel_changed":  "Update channel changed. Please check again.",
+    "settings.update.status_channel_changed_format":  "Update channel switched to {0}. Please check again.",
+    "settings.update.status_windows_only":  "Automatic installer update is currently available only on Windows.",
+    "settings.update.status_checking":  "Checking GitHub releases...",
+    "settings.update.status_check_failed_format":  "Update check failed: {0}",
+    "settings.update.status_up_to_date":  "You are already on the latest version.",
+    "settings.update.status_asset_missing":  "A new release is available, but no compatible installer was found.",
+    "settings.update.status_available_format":  "New version {0} is available. Click Download & Install.",
+    "settings.update.status_downloading":  "Downloading installer...",
+    "settings.update.status_download_failed_format":  "Download failed: {0}",
+    "settings.update.status_launching_installer":  "Download complete. Launching installer...",
+    "settings.update.status_installer_missing":  "Installer file was not found after download.",
+    "settings.update.status_installer_started":  "Installer started. The app will close for update.",
+    "settings.update.status_launch_failed_format":  "Failed to start installer: {0}",
     "settings.about.title":  "About",
     "settings.about.version_format":  "Version: {0}",
     "settings.about.codename_format":  "Code Name: {0}",
     "settings.about.font_format":  "Font: {0}",
+    "settings.about.startup_header":  "Windows Startup",
+    "settings.about.startup_desc":  "Launch the app automatically when signing in to Windows.",
+    "settings.about.startup_toggle":  "Launch at Windows sign-in",
     "settings.footer":  "LanMountainDesktop Settings",
     "filepicker.title":  "Select wallpaper",
     "filepicker.image_files":  "Image files",
@@ -192,14 +245,32 @@
     "common.night":  "Night",
     "common.back":  "Back",
     "common.close":  "Close",
+    "common.unknown":  "Unknown error",
     "common.recommended":  "Recommended",
     "common.monet":  "Monet",
     "desktop.page_index_format":  "Desktop {0}",
     "launcher.title":  "App Launcher",
     "launcher.subtitle":  "Apps and folders from Windows Start Menu",
+    "launcher.subtitle_linux":  "Installed apps discovered from Linux desktop entries",
     "launcher.empty":  "No Start Menu entries found.",
+    "launcher.empty_linux":  "No Linux desktop entries were found.",
     "launcher.empty_folder":  "This folder is empty.",
     "launcher.folder_items_format":  "{0} apps",
+    "launcher.context.hide_icon":  "Hide Icon",
+    "launcher.action.hide":  "Hide",
+    "settings.launcher.title":  "App Launcher",
+    "settings.launcher.hidden_header":  "Hidden Items",
+    "settings.launcher.hidden_desc":  "Review hidden launcher entries and show them again.",
+    "settings.launcher.hidden_hint":  "In desktop edit mode, select a launcher icon and click Hide. Hidden entries appear here.",
+    "settings.launcher.hidden_empty":  "No hidden items.",
+    "settings.launcher.hidden_type_folder":  "Folder",
+    "settings.launcher.hidden_type_shortcut":  "Shortcut",
+    "settings.launcher.restore_button":  "Show Again",
+    "settings.plugins.title":  "Plugins",
+    "settings.plugins.runtime_header":  "Plugin Runtime",
+    "settings.plugins.runtime_desc":  "Manage plugin loading and backend isolation.",
+    "settings.plugins.runtime_hint":  "This page will host installed plugin management, permission review, and sandboxed backend runtime controls.",
+    "settings.plugins.runtime_status":  "Plugin management UI is not connected yet. Next step is wiring the loader, permissions, and worker isolation state into this panel.",
     "button.component_library":  "Edit Desktop",
     "tooltip.component_library":  "Edit Desktop",
     "component_library.title":  "Widgets",
@@ -213,12 +284,14 @@
     "component_category.board":  "Board",
     "component_category.media":  "Media",
     "component_category.info":  "Info",
+    "component_category.calculator":  "Calculator",
     "component_category.study":  "Study",
     "component.date":  "Calendar",
     "component.month_calendar":  "Month Calendar",
     "component.lunar_calendar":  "Lunar Calendar",
     "component.desktop_clock":  "Clock",
     "component.weather_clock":  "Weather Clock",
+    "component.world_clock":  "World Clock",
     "component.desktop_timer":  "Timer",
     "component.desktop_weather":  "Weather",
     "component.hourly_weather":  "Hourly Weather",
@@ -229,6 +302,14 @@
     "component.audio_recorder":  "Recorder",
     "component.daily_poetry":  "Daily Poetry",
     "component.daily_artwork":  "Daily Artwork",
+    "component.daily_word":  "Daily Word",
+    "component.daily_word_2x2":  "Daily Word 2x2",
+    "component.cnr_daily_news":  "CNR Headlines",
+    "component.ifeng_news":  "iFeng News",
+    "component.bilibili_hot_search":  "Bilibili Hot Search",
+    "component.baidu_hot_search":  "Baidu Hot Search",
+    "component.stcn24_forum":  "STCN 24",
+    "component.exchange_rate_converter":  "Exchange Rate Converter",
     "component.whiteboard":  "Blackboard (Portrait)",
     "component.blackboard_landscape":  "Blackboard (Landscape)",
     "component.browser":  "Browser",
@@ -241,6 +322,12 @@
     "component.study_score_overview":  "Study Score Overview",
     "component.study_deduction_reasons":  "Deduction Reasons",
     "component.study_interrupt_density":  "Interrupt Density",
+    "desktop_clock.settings.title":  "Clock Settings",
+    "desktop_clock.settings.desc":  "Choose the time zone for the single clock.",
+    "desktop_clock.settings.timezone_label":  "Time Zone",
+    "desktop_clock.settings.second_mode_label":  "Second Hand",
+    "clock.second_mode.tick":  "Tick",
+    "clock.second_mode.sweep":  "Sweep",
     "poetry.widget.loading_content":  "Loading poetry...",
     "poetry.widget.loading_author":  "Loading...",
     "poetry.widget.fetch_failed":  "Poetry fetch failed",
@@ -255,6 +342,141 @@
     "artwork.widget.fallback_artist":  "Recommendation service unavailable",
     "artwork.widget.fallback_year":  "Try again later",
     "artwork.widget.unknown_artist":  "Unknown artist",
+    "dailyword.widget.loading":  "Loading...",
+    "dailyword.widget.loading_word":  "daily word",
+    "dailyword.widget.loading_pronunciation":  "Fetching pronunciation...",
+    "dailyword.widget.loading_meaning":  "Fetching meaning...",
+    "dailyword.widget.loading_example":  "Fetching example sentence...",
+    "dailyword.widget.loading_example_translation":  "Loading...",
+    "dailyword.widget.fetch_failed":  "Daily word fetch failed",
+    "dailyword.widget.fallback_word":  "daily word",
+    "dailyword.widget.fallback_pronunciation":  "Pronunciation unavailable",
+    "dailyword.widget.fallback_meaning":  "Youdao dictionary is temporarily unavailable.",
+    "dailyword.widget.fallback_example":  "Tap the refresh button and try again.",
+    "dailyword.widget.fallback_example_translation":  "It will retry when network recovers.",
+    "dailyword2x2.widget.tap_to_show":  "Tap to reveal meaning",
+    "cnrnews.widget.loading":  "Loading...",
+    "cnrnews.widget.loading_title":  "Fetching CNR headlines",
+    "cnrnews.widget.loading_subtitle":  "Please wait",
+    "cnrnews.widget.fetch_failed":  "News fetch failed",
+    "cnrnews.widget.fallback_title":  "CNR news is temporarily unavailable",
+    "cnrnews.widget.fallback_subtitle":  "Tap refresh and try again",
+    "cnrnews.widget.hot_label":  "Hot",
+    "bilihot.widget.brand":  "bilibili hot search",
+    "bilihot.widget.top_right_label":  "bilibili热搜",
+    "bilihot.widget.search_entry":  "Search",
+    "bilihot.widget.search_placeholder":  "Search trending topics",
+    "bilihot.widget.loading":  "Loading...",
+    "bilihot.widget.loading_item":  "Loading...",
+    "bilihot.widget.fetch_failed":  "Hot search fetch failed",
+    "bilihot.widget.fallback_item":  "No hot search data",
+    "bilihot.widget.more_hot":  "More hot search",
+    "baiduhot.widget.brand":  "Baidu Hot Search",
+    "baiduhot.widget.loading":  "Loading...",
+    "baiduhot.widget.loading_item":  "Loading...",
+    "baiduhot.widget.fetch_failed":  "Hot search fetch failed",
+    "baiduhot.widget.fallback_item":  "No hot search data",
+    "baiduhot.widget.refresh_tooltip":  "Refresh",
+    "ifeng.widget.brand":  "iFeng News",
+    "ifeng.widget.loading":  "Loading...",
+    "ifeng.widget.loading_item":  "Loading...",
+    "ifeng.widget.fetch_failed":  "News fetch failed",
+    "ifeng.widget.fallback_item":  "No news data",
+    "ifeng.widget.refresh_tooltip":  "Refresh",
+    "dailyword.settings.title":  "Daily word settings",
+    "dailyword.settings.desc":  "Configure auto refresh and refresh interval.",
+    "dailyword.settings.auto_refresh_label":  "Auto refresh",
+    "dailyword.settings.auto_refresh_enabled":  "Enable auto refresh",
+    "dailyword.settings.frequency_label":  "Refresh interval",
+    "bilihot.settings.title":  "Bilibili hot search settings",
+    "bilihot.settings.desc":  "Configure auto refresh and refresh interval.",
+    "bilihot.settings.auto_refresh_label":  "Auto refresh",
+    "bilihot.settings.auto_refresh_enabled":  "Enable auto refresh",
+    "bilihot.settings.frequency_label":  "Refresh interval",
+    "baiduhot.settings.title":  "Baidu hot search settings",
+    "baiduhot.settings.desc":  "Configure source, auto refresh and refresh interval.",
+    "baiduhot.settings.source_label":  "Data source",
+    "baiduhot.settings.source_official":  "Official Source",
+    "baiduhot.settings.source_rss":  "Third-party RSS",
+    "baiduhot.settings.auto_refresh_label":  "Auto refresh",
+    "baiduhot.settings.auto_refresh_enabled":  "Enable auto refresh",
+    "baiduhot.settings.frequency_label":  "Refresh interval",
+    "ifeng.settings.title":  "iFeng news settings",
+    "ifeng.settings.desc":  "Configure channel, auto refresh and refresh interval.",
+    "ifeng.settings.channel_label":  "News channel",
+    "ifeng.settings.channel_comprehensive":  "Comprehensive",
+    "ifeng.settings.channel_mainland":  "China Mainland",
+    "ifeng.settings.channel_taiwan":  "Taiwan",
+    "ifeng.settings.auto_refresh_label":  "Auto refresh",
+    "ifeng.settings.auto_refresh_enabled":  "Enable auto refresh",
+    "ifeng.settings.frequency_label":  "Refresh interval",
+    "refresh.frequency.5m":  "5 minutes",
+    "refresh.frequency.10m":  "10 minutes",
+    "refresh.frequency.12m":  "12 minutes",
+    "refresh.frequency.15m":  "15 minutes",
+    "refresh.frequency.20m":  "20 minutes",
+    "refresh.frequency.30m":  "30 minutes",
+    "refresh.frequency.40m":  "40 minutes",
+    "refresh.frequency.1h":  "1 hour",
+    "refresh.frequency.3h":  "3 hours",
+    "refresh.frequency.6h":  "6 hours",
+    "refresh.frequency.12h":  "12 hours",
+    "refresh.frequency.24h":  "24 hours",
+    "weather.widget.settings.title":  "Weather widget settings",
+    "weather.widget.settings.desc":  "Configure auto refresh and refresh interval for all weather widgets.",
+    "weather.widget.settings.auto_refresh_label":  "Auto refresh",
+    "weather.widget.settings.auto_refresh_enabled":  "Enable auto refresh",
+    "weather.widget.settings.frequency_label":  "Refresh interval",
+    "weather.widget.settings.frequency_10m":  "10 minutes",
+    "weather.widget.settings.frequency_12m":  "12 minutes",
+    "weather.widget.settings.frequency_15m":  "15 minutes",
+    "weather.widget.settings.frequency_30m":  "30 minutes",
+    "weather.widget.settings.frequency_1h":  "1 hour",
+    "weather.widget.settings.frequency_3h":  "3 hours",
+    "stcn24.widget.loading":  "Loading...",
+    "stcn24.widget.loading_item":  "Loading...",
+    "stcn24.widget.fetch_failed":  "Forum posts fetch failed",
+    "stcn24.widget.fallback_item":  "No posts",
+    "stcn24.settings.title":  "STCN 24 settings",
+    "stcn24.settings.desc":  "Configure information source, auto refresh and refresh interval.",
+    "stcn24.settings.source_label":  "Information source",
+    "stcn24.settings.source_latest_created":  "Latest posts",
+    "stcn24.settings.source_latest_activity":  "Latest activity",
+    "stcn24.settings.source_most_replies":  "Most replies",
+    "stcn24.settings.source_earliest_created":  "Earliest posts",
+    "stcn24.settings.source_earliest_activity":  "Earliest activity",
+    "stcn24.settings.source_least_replies":  "Least replies",
+    "stcn24.settings.source_frontpage_latest":  "Frontpage latest",
+    "stcn24.settings.source_frontpage_earliest":  "Frontpage earliest",
+    "stcn24.settings.auto_refresh_label":  "Auto refresh",
+    "stcn24.settings.auto_refresh_enabled":  "Enable auto refresh",
+    "stcn24.settings.frequency_label":  "Refresh interval",
+    "stcn24.settings.frequency_5m":  "5 minutes",
+    "stcn24.settings.frequency_10m":  "10 minutes",
+    "stcn24.settings.frequency_20m":  "20 minutes",
+    "stcn24.settings.frequency_30m":  "30 minutes",
+    "stcn24.settings.frequency_1h":  "1 hour",
+    "stcn24.settings.frequency_3h":  "3 hours",
+    "exchange.widget.loading":  "Loading exchange rates...",
+    "exchange.widget.fetch_failed":  "Exchange rate fetch failed",
+    "cnrnews.settings.title":  "CNR Settings",
+    "cnrnews.settings.desc":  "Configure auto-rotation and refresh interval.",
+    "cnrnews.settings.auto_rotate_label":  "Auto-rotation",
+    "cnrnews.settings.auto_rotate_enabled":  "Enable auto-rotation",
+    "cnrnews.settings.frequency_label":  "Rotation interval",
+    "cnrnews.settings.frequency_5m":  "5 minutes",
+    "cnrnews.settings.frequency_10m":  "10 minutes",
+    "cnrnews.settings.frequency_40m":  "40 minutes",
+    "cnrnews.settings.frequency_1h":  "1 hour",
+    "cnrnews.settings.frequency_12h":  "12 hours",
+    "cnrnews.settings.frequency_24h":  "24 hours",
+    "artwork.settings.title":  "Daily Artwork Settings",
+    "artwork.settings.desc":  "Switch the data source used by Daily Artwork.",
+    "artwork.settings.source_label":  "Mirror Source",
+    "artwork.settings.source_domestic":  "Domestic Mirror",
+    "artwork.settings.source_overseas":  "Overseas Mirror",
+    "artwork.settings.source_status_domestic":  "Current source: Domestic mirror (optimized for China network)",
+    "artwork.settings.source_status_overseas":  "Current source: Overseas mirror (art museum recommendations)",
     "music.widget.unsupported":  "Music control is not supported on this platform",
     "music.widget.unsupported_hint":  "This widget requires Windows SMTC",
     "music.widget.no_session":  "No music source",

LanMountainDesktop/Localization/zh-CN.json

@@ -12,6 +12,9 @@
     "settings.nav.status_bar":  "状态栏",
     "settings.nav.weather":  "天气",
     "settings.nav.region":  "地区",
+    "settings.nav.update":  "更新",
+    "settings.nav.launcher":  "应用启动台",
+    "settings.nav.plugins":  "插件",
     "settings.nav.about":  "关于",
     "settings.wallpaper.title":  "壁纸",
     "settings.wallpaper.description":  "选择图片或视频后可立即设为应用窗口壁纸。",
@@ -162,6 +165,21 @@
     "schedule.settings.delete":  "删除",
     "schedule.settings.picker_title":  "选择 ClassIsland 课表文件",
     "schedule.settings.picker_file_type":  "ClassIsland CSES 课表",
+    "worldclock.settings.title":  "世界时钟设置",
+    "worldclock.settings.desc":  "分别为四个时钟选择时区。",
+    "worldclock.settings.clock_1":  "时钟 1",
+    "worldclock.settings.clock_2":  "时钟 2",
+    "worldclock.settings.clock_3":  "时钟 3",
+    "worldclock.settings.clock_4":  "时钟 4",
+    "worldclock.settings.second_mode_label":  "秒针方式",
+    "worldclock.widget.today":  "今天",
+    "worldclock.widget.yesterday":  "昨天",
+    "worldclock.widget.tomorrow":  "明天",
+    "worldclock.widget.offset_same":  "0 小时",
+    "worldclock.widget.offset_ahead_hours":  "早 {0} 小时",
+    "worldclock.widget.offset_behind_hours":  "晚 {0} 小时",
+    "worldclock.widget.offset_ahead_hm":  "早 {0} 小时 {1} 分",
+    "worldclock.widget.offset_behind_hm":  "晚 {0} 小时 {1} 分",
     "weather.widget.aqi_unknown":  "AQI --",
     "weather.widget.aqi_format":  "AQI {0}",
     "weather.widget.updated_format":  "更新于 {0:HH:mm}",
@@ -180,10 +198,45 @@
     "settings.region.timezone_header":  "时区",
     "settings.region.timezone_desc":  "选择时区。时钟与日历组件会使用该时区。",
     "settings.region.applied_format":  "语言已切换为：{0}",
+    "settings.update.title":  "更新",
+    "settings.update.current_version_label":  "当前版本",
+    "settings.update.latest_version_label":  "最新发布",
+    "settings.update.published_at_label":  "发布时间",
+    "settings.update.options_header":  "更新选项",
+    "settings.update.options_desc":  "配置更新检查与发布通道。",
+    "settings.update.auto_check_toggle":  "启动时自动检查更新",
+    "settings.update.include_prerelease_toggle":  "包含预发布版本",
+    "settings.update.channel_label":  "更新通道",
+    "settings.update.channel_stable":  "正式版",
+    "settings.update.channel_preview":  "预览版",
+    "settings.update.actions_header":  "更新操作",
+    "settings.update.actions_desc":  "检查发布、下载安装包并启动更新。",
+    "settings.update.check_button":  "检查更新",
+    "settings.update.download_install_button":  "下载并安装",
+    "settings.update.download_progress_idle":  "下载进度：-",
+    "settings.update.download_progress_format":  "下载进度：{0:F0}%",
+    "settings.update.status_ready":  "可开始检查更新。",
+    "settings.update.status_channel_changed":  "更新通道已变更，请重新检查更新。",
+    "settings.update.status_channel_changed_format":  "更新通道已切换为 {0}，请重新检查更新。",
+    "settings.update.status_windows_only":  "自动安装包更新当前仅支持 Windows。",
+    "settings.update.status_checking":  "正在检查 GitHub Release...",
+    "settings.update.status_check_failed_format":  "检查更新失败：{0}",
+    "settings.update.status_up_to_date":  "当前已是最新版本。",
+    "settings.update.status_asset_missing":  "发现新版本，但未找到兼容的安装包。",
+    "settings.update.status_available_format":  "发现新版本 {0}，点击“下载并安装”继续。",
+    "settings.update.status_downloading":  "正在下载安装包...",
+    "settings.update.status_download_failed_format":  "下载失败：{0}",
+    "settings.update.status_launching_installer":  "下载完成，正在启动安装程序...",
+    "settings.update.status_installer_missing":  "下载后未找到安装包文件。",
+    "settings.update.status_installer_started":  "安装程序已启动，应用将关闭进行更新。",
+    "settings.update.status_launch_failed_format":  "启动安装程序失败：{0}",
     "settings.about.title":  "关于",
     "settings.about.version_format":  "版本号: {0}",
     "settings.about.codename_format":  "版本代号: {0}",
     "settings.about.font_format":  "字体: {0}",
+    "settings.about.startup_header":  "Windows 自启动",
+    "settings.about.startup_desc":  "在登录 Windows 时自动启动应用。",
+    "settings.about.startup_toggle":  "登录 Windows 时启动",
     "settings.footer":  "LanMountainDesktop 设置",
     "filepicker.title":  "选择壁纸",
     "filepicker.image_files":  "图片文件",
@@ -192,14 +245,32 @@
     "common.night":  "夜间",
     "common.back":  "返回",
     "common.close":  "关闭",
+    "common.unknown":  "未知错误",
     "common.recommended":  "推荐",
     "common.monet":  "莫奈",
     "desktop.page_index_format":  "桌面 {0}",
     "launcher.title":  "应用启动台",
     "launcher.subtitle":  "按 Windows 开始菜单结构显示所有应用与文件夹",
+    "launcher.subtitle_linux":  "显示从 Linux .desktop 条目扫描到的已安装应用",
     "launcher.empty":  "未找到开始菜单条目。",
+    "launcher.empty_linux":  "未找到 Linux .desktop 应用条目。",
     "launcher.empty_folder":  "此文件夹为空。",
     "launcher.folder_items_format":  "{0} 个应用",
+    "launcher.context.hide_icon":  "隐藏图标",
+    "launcher.action.hide":  "隐藏",
+    "settings.launcher.title":  "应用启动台",
+    "settings.launcher.hidden_header":  "已隐藏项目",
+    "settings.launcher.hidden_desc":  "查看已隐藏的启动台项目并重新显示。",
+    "settings.launcher.hidden_hint":  "进入桌面编辑模式后，在启动台选中图标并点击“隐藏”，隐藏后的项目会显示在这里。",
+    "settings.launcher.hidden_empty":  "暂无隐藏项目。",
+    "settings.launcher.hidden_type_folder":  "文件夹",
+    "settings.launcher.hidden_type_shortcut":  "快捷方式",
+    "settings.launcher.restore_button":  "重新显示",
+    "settings.plugins.title":  "插件",
+    "settings.plugins.runtime_header":  "插件运行时",
+    "settings.plugins.runtime_desc":  "管理插件加载与后端隔离运行。",
+    "settings.plugins.runtime_hint":  "这里将承载已安装插件、权限审查和沙盒后端运行时控制。",
+    "settings.plugins.runtime_status":  "插件管理界面尚未接入实际数据。下一步是把加载器、权限和 worker 隔离状态接到这里。",
     "button.component_library":  "桌面编辑",
     "tooltip.component_library":  "桌面编辑",
     "component_library.title":  "桌面编辑",
@@ -213,12 +284,14 @@
     "component_category.board":  "白板",
     "component_category.media":  "媒体",
     "component_category.info":  "信息推荐",
+    "component_category.calculator":  "计算器",
     "component_category.study":  "自习",
     "component.date":  "日历",
     "component.month_calendar":  "月历",
     "component.lunar_calendar":  "农历",
     "component.desktop_clock":  "时钟",
     "component.weather_clock":  "天气时钟",
+    "component.world_clock":  "世界时钟",
     "component.desktop_timer":  "计时器",
     "component.desktop_weather":  "天气",
     "component.hourly_weather":  "小时天气",
@@ -229,6 +302,14 @@
     "component.audio_recorder":  "录音",
     "component.daily_poetry":  "每日诗词",
     "component.daily_artwork":  "每日名画",
+    "component.daily_word":  "每日单词",
+    "component.daily_word_2x2":  "每日单词 2x2",
+    "component.cnr_daily_news":  "央广网头条",
+    "component.ifeng_news":  "凤凰网新闻",
+    "component.bilibili_hot_search":  "B站热搜",
+    "component.baidu_hot_search":  "百度热搜",
+    "component.stcn24_forum":  "STCN 24",
+    "component.exchange_rate_converter":  "汇率换算",
     "component.whiteboard":  "竖向小黑板",
     "component.blackboard_landscape":  "横向小黑板",
     "component.browser":  "浏览器",
@@ -241,6 +322,12 @@
     "component.study_score_overview":  "自习评分总览",
     "component.study_deduction_reasons":  "扣分原因",
     "component.study_interrupt_density":  "打断密度",
+    "desktop_clock.settings.title":  "时钟设置",
+    "desktop_clock.settings.desc":  "为单时钟选择时区。",
+    "desktop_clock.settings.timezone_label":  "时区",
+    "desktop_clock.settings.second_mode_label":  "秒针方式",
+    "clock.second_mode.tick":  "跳针",
+    "clock.second_mode.sweep":  "扫针",
     "poetry.widget.loading_content":  "正在加载诗词",
     "poetry.widget.loading_author":  "加载中",
     "poetry.widget.fetch_failed":  "诗词获取失败",
@@ -255,6 +342,141 @@
     "artwork.widget.fallback_artist":  "推荐服务不可用",
     "artwork.widget.fallback_year":  "稍后重试",
     "artwork.widget.unknown_artist":  "未知作者",
+    "dailyword.widget.loading":  "加载中...",
+    "dailyword.widget.loading_word":  "每日单词",
+    "dailyword.widget.loading_pronunciation":  "正在获取发音",
+    "dailyword.widget.loading_meaning":  "正在获取释义",
+    "dailyword.widget.loading_example":  "正在获取例句",
+    "dailyword.widget.loading_example_translation":  "加载中",
+    "dailyword.widget.fetch_failed":  "每日单词获取失败",
+    "dailyword.widget.fallback_word":  "每日单词",
+    "dailyword.widget.fallback_pronunciation":  "发音暂不可用",
+    "dailyword.widget.fallback_meaning":  "有道词典暂不可用",
+    "dailyword.widget.fallback_example":  "请点击右上角刷新重试",
+    "dailyword.widget.fallback_example_translation":  "网络恢复后将自动更新",
+    "dailyword2x2.widget.tap_to_show":  "点击查看释义",
+    "cnrnews.widget.loading":  "加载中...",
+    "cnrnews.widget.loading_title":  "正在获取新闻热点",
+    "cnrnews.widget.loading_subtitle":  "请稍候",
+    "cnrnews.widget.fetch_failed":  "新闻获取失败",
+    "cnrnews.widget.fallback_title":  "央广网新闻暂不可用",
+    "cnrnews.widget.fallback_subtitle":  "点击右上角稍后重试",
+    "cnrnews.widget.hot_label":  "热点",
+    "bilihot.widget.brand":  "bilibili 热搜",
+    "bilihot.widget.top_right_label":  "bilibili热搜",
+    "bilihot.widget.search_entry":  "搜索",
+    "bilihot.widget.search_placeholder":  "搜索热词",
+    "bilihot.widget.loading":  "加载中...",
+    "bilihot.widget.loading_item":  "加载中...",
+    "bilihot.widget.fetch_failed":  "热搜获取失败",
+    "bilihot.widget.fallback_item":  "暂无热搜",
+    "bilihot.widget.more_hot":  "更多热搜",
+    "baiduhot.widget.brand":  "百度热搜",
+    "baiduhot.widget.loading":  "加载中...",
+    "baiduhot.widget.loading_item":  "加载中...",
+    "baiduhot.widget.fetch_failed":  "热搜获取失败",
+    "baiduhot.widget.fallback_item":  "暂无热搜",
+    "baiduhot.widget.refresh_tooltip":  "刷新",
+    "ifeng.widget.brand":  "凤凰网新闻",
+    "ifeng.widget.loading":  "加载中...",
+    "ifeng.widget.loading_item":  "加载中...",
+    "ifeng.widget.fetch_failed":  "新闻获取失败",
+    "ifeng.widget.fallback_item":  "暂无新闻",
+    "ifeng.widget.refresh_tooltip":  "刷新",
+    "dailyword.settings.title":  "每日单词设置",
+    "dailyword.settings.desc":  "配置自动刷新开关与刷新频率。",
+    "dailyword.settings.auto_refresh_label":  "自动刷新",
+    "dailyword.settings.auto_refresh_enabled":  "启用自动刷新",
+    "dailyword.settings.frequency_label":  "刷新频率",
+    "bilihot.settings.title":  "B站热搜设置",
+    "bilihot.settings.desc":  "配置自动刷新开关与刷新频率。",
+    "bilihot.settings.auto_refresh_label":  "自动刷新",
+    "bilihot.settings.auto_refresh_enabled":  "启用自动刷新",
+    "bilihot.settings.frequency_label":  "刷新频率",
+    "baiduhot.settings.title":  "百度热搜设置",
+    "baiduhot.settings.desc":  "配置数据源、自动刷新开关与刷新频率。",
+    "baiduhot.settings.source_label":  "数据源",
+    "baiduhot.settings.source_official":  "百度官方源",
+    "baiduhot.settings.source_rss":  "第三方 RSS 源",
+    "baiduhot.settings.auto_refresh_label":  "自动刷新",
+    "baiduhot.settings.auto_refresh_enabled":  "启用自动刷新",
+    "baiduhot.settings.frequency_label":  "刷新频率",
+    "ifeng.settings.title":  "凤凰网新闻设置",
+    "ifeng.settings.desc":  "配置频道、自动刷新开关与刷新频率。",
+    "ifeng.settings.channel_label":  "新闻频道",
+    "ifeng.settings.channel_comprehensive":  "综合",
+    "ifeng.settings.channel_mainland":  "中国大陆",
+    "ifeng.settings.channel_taiwan":  "台湾",
+    "ifeng.settings.auto_refresh_label":  "自动刷新",
+    "ifeng.settings.auto_refresh_enabled":  "启用自动刷新",
+    "ifeng.settings.frequency_label":  "刷新频率",
+    "refresh.frequency.5m":  "5 分钟",
+    "refresh.frequency.10m":  "10 分钟",
+    "refresh.frequency.12m":  "12 分钟",
+    "refresh.frequency.15m":  "15 分钟",
+    "refresh.frequency.20m":  "20 分钟",
+    "refresh.frequency.30m":  "30 分钟",
+    "refresh.frequency.40m":  "40 分钟",
+    "refresh.frequency.1h":  "1 小时",
+    "refresh.frequency.3h":  "3 小时",
+    "refresh.frequency.6h":  "6 小时",
+    "refresh.frequency.12h":  "12 小时",
+    "refresh.frequency.24h":  "24 小时",
+    "weather.widget.settings.title":  "天气组件设置",
+    "weather.widget.settings.desc":  "配置全部天气组件的自动刷新开关与刷新频率。",
+    "weather.widget.settings.auto_refresh_label":  "自动刷新",
+    "weather.widget.settings.auto_refresh_enabled":  "启用自动刷新",
+    "weather.widget.settings.frequency_label":  "刷新频率",
+    "weather.widget.settings.frequency_10m":  "10 分钟",
+    "weather.widget.settings.frequency_12m":  "12 分钟",
+    "weather.widget.settings.frequency_15m":  "15 分钟",
+    "weather.widget.settings.frequency_30m":  "30 分钟",
+    "weather.widget.settings.frequency_1h":  "1 小时",
+    "weather.widget.settings.frequency_3h":  "3 小时",
+    "stcn24.widget.loading":  "加载中...",
+    "stcn24.widget.loading_item":  "加载中...",
+    "stcn24.widget.fetch_failed":  "帖子获取失败",
+    "stcn24.widget.fallback_item":  "暂无帖子",
+    "stcn24.settings.title":  "STCN 24 设置",
+    "stcn24.settings.desc":  "配置信息源、自动刷新开关与刷新频率。",
+    "stcn24.settings.source_label":  "信息源",
+    "stcn24.settings.source_latest_created":  "最新发布",
+    "stcn24.settings.source_latest_activity":  "最新回复",
+    "stcn24.settings.source_most_replies":  "回复最多",
+    "stcn24.settings.source_earliest_created":  "最早发布",
+    "stcn24.settings.source_earliest_activity":  "最早回复",
+    "stcn24.settings.source_least_replies":  "回复最少",
+    "stcn24.settings.source_frontpage_latest":  "前台推荐（新）",
+    "stcn24.settings.source_frontpage_earliest":  "前台推荐（旧）",
+    "stcn24.settings.auto_refresh_label":  "自动刷新",
+    "stcn24.settings.auto_refresh_enabled":  "启用自动刷新",
+    "stcn24.settings.frequency_label":  "刷新频率",
+    "stcn24.settings.frequency_5m":  "5 分钟",
+    "stcn24.settings.frequency_10m":  "10 分钟",
+    "stcn24.settings.frequency_20m":  "20 分钟",
+    "stcn24.settings.frequency_30m":  "30 分钟",
+    "stcn24.settings.frequency_1h":  "1 小时",
+    "stcn24.settings.frequency_3h":  "3 小时",
+    "exchange.widget.loading":  "正在加载汇率...",
+    "exchange.widget.fetch_failed":  "汇率获取失败",
+    "cnrnews.settings.title":  "央广网设置",
+    "cnrnews.settings.desc":  "配置新闻自动轮换与刷新频率。",
+    "cnrnews.settings.auto_rotate_label":  "自动轮换",
+    "cnrnews.settings.auto_rotate_enabled":  "启用自动轮换",
+    "cnrnews.settings.frequency_label":  "轮换频率",
+    "cnrnews.settings.frequency_5m":  "5 分钟",
+    "cnrnews.settings.frequency_10m":  "10 分钟",
+    "cnrnews.settings.frequency_40m":  "40 分钟",
+    "cnrnews.settings.frequency_1h":  "1 小时",
+    "cnrnews.settings.frequency_12h":  "12 小时",
+    "cnrnews.settings.frequency_24h":  "24 小时",
+    "artwork.settings.title":  "每日图片设置",
+    "artwork.settings.desc":  "切换每日图片的数据源。",
+    "artwork.settings.source_label":  "镜像源",
+    "artwork.settings.source_domestic":  "国内镜像",
+    "artwork.settings.source_overseas":  "国外镜像",
+    "artwork.settings.source_status_domestic":  "当前源：国内镜像（优先中国网络）",
+    "artwork.settings.source_status_overseas":  "当前源：国外镜像（艺术馆推荐）",
     "music.widget.unsupported":  "当前平台不支持音乐控制",
     "music.widget.unsupported_hint":  "该组件仅支持 Windows SMTC",
     "music.widget.no_session":  "暂无音源",

LanMountainDesktop/Models/AppSettingsSnapshot.cs

@@ -44,6 +44,14 @@ public sealed class AppSettingsSnapshot
 
     public bool WeatherNoTlsRequests { get; set; }
 
+    public bool AutoStartWithWindows { get; set; }
+
+    public bool AutoCheckUpdates { get; set; } = true;
+
+    public bool IncludePrereleaseUpdates { get; set; }
+
+    public string UpdateChannel { get; set; } = string.Empty;
+
     public List<string> TopStatusComponentIds { get; set; } = [];
 
     public List<string> PinnedTaskbarActions { get; set; } =
@@ -68,12 +76,51 @@ public sealed class AppSettingsSnapshot
 
     public List<DesktopComponentPlacementSnapshot> DesktopComponentPlacements { get; set; } = [];
 
-    public List<ImportedClassScheduleSnapshot> ImportedClassSchedules { get; set; } = [];
+    public List<string> HiddenLauncherFolderPaths { get; set; } = [];
 
-    public string ActiveImportedClassScheduleId { get; set; } = string.Empty;
+    public List<string> HiddenLauncherAppPaths { get; set; } = [];
 
-    public bool StudyEnvironmentShowDisplayDb { get; set; } = true;
+    public AppSettingsSnapshot Clone()
+    {
+        var clone = (AppSettingsSnapshot)MemberwiseClone();
 
-    public bool StudyEnvironmentShowDbfs { get; set; }
+        clone.TopStatusComponentIds = TopStatusComponentIds is { Count: > 0 }
+            ? new List<string>(TopStatusComponentIds)
+            : [];
+        clone.PinnedTaskbarActions = PinnedTaskbarActions is { Count: > 0 }
+            ? new List<string>(PinnedTaskbarActions)
+            : [];
 
+        var placements = new List<DesktopComponentPlacementSnapshot>(DesktopComponentPlacements?.Count ?? 0);
+        if (DesktopComponentPlacements is not null)
+        {
+            foreach (var placement in DesktopComponentPlacements)
+            {
+                if (placement is null)
+                {
+                    continue;
+                }
+
+                placements.Add(new DesktopComponentPlacementSnapshot
+                {
+                    PlacementId = placement.PlacementId,
+                    PageIndex = placement.PageIndex,
+                    ComponentId = placement.ComponentId,
+                    Row = placement.Row,
+                    Column = placement.Column,
+                    WidthCells = placement.WidthCells,
+                    HeightCells = placement.HeightCells
+                });
+            }
+        }
+        clone.DesktopComponentPlacements = placements;
+        clone.HiddenLauncherFolderPaths = HiddenLauncherFolderPaths is { Count: > 0 }
+            ? new List<string>(HiddenLauncherFolderPaths)
+            : [];
+        clone.HiddenLauncherAppPaths = HiddenLauncherAppPaths is { Count: > 0 }
+            ? new List<string>(HiddenLauncherAppPaths)
+            : [];
+
+        return clone;
+    }
 }

LanMountainDesktop/Models/BaiduHotSearchSourceTypes.cs

@@ -0,0 +1,19 @@
+using System;
+
+namespace LanMountainDesktop.Models;
+
+public static class BaiduHotSearchSourceTypes
+{
+    public const string Official = "Official";
+    public const string ThirdPartyRss = "ThirdPartyRss";
+
+    public static string Normalize(string? sourceType)
+    {
+        if (string.Equals(sourceType, ThirdPartyRss, StringComparison.OrdinalIgnoreCase))
+        {
+            return ThirdPartyRss;
+        }
+
+        return Official;
+    }
+}

LanMountainDesktop/Models/ComponentSettingsSnapshot.cs

@@ -0,0 +1,95 @@
+using System.Collections.Generic;
+
+namespace LanMountainDesktop.Models;
+
+public sealed class ComponentSettingsSnapshot
+{
+    public string DailyArtworkMirrorSource { get; set; } = DailyArtworkMirrorSources.Overseas;
+
+    public List<ImportedClassScheduleSnapshot> ImportedClassSchedules { get; set; } = [];
+
+    public string ActiveImportedClassScheduleId { get; set; } = string.Empty;
+
+    public bool StudyEnvironmentShowDisplayDb { get; set; } = true;
+
+    public bool StudyEnvironmentShowDbfs { get; set; }
+
+    public string DesktopClockTimeZoneId { get; set; } = "China Standard Time";
+
+    public string DesktopClockSecondHandMode { get; set; } = "Tick";
+
+    public List<string> WorldClockTimeZoneIds { get; set; } =
+    [
+        "China Standard Time",
+        "GMT Standard Time",
+        "AUS Eastern Standard Time",
+        "Eastern Standard Time"
+    ];
+
+    public string WorldClockSecondHandMode { get; set; } = "Tick";
+
+    public bool CnrDailyNewsAutoRotateEnabled { get; set; } = true;
+
+    public int CnrDailyNewsAutoRotateIntervalMinutes { get; set; } = 60;
+
+    public bool IfengNewsAutoRefreshEnabled { get; set; } = true;
+
+    public int IfengNewsAutoRefreshIntervalMinutes { get; set; } = 20;
+
+    public string IfengNewsChannelType { get; set; } = IfengNewsChannelTypes.Comprehensive;
+
+    public bool DailyWordAutoRefreshEnabled { get; set; } = true;
+
+    public int DailyWordAutoRefreshIntervalMinutes { get; set; } = 360;
+
+    public bool BilibiliHotSearchAutoRefreshEnabled { get; set; } = true;
+
+    public int BilibiliHotSearchAutoRefreshIntervalMinutes { get; set; } = 15;
+
+    public bool BaiduHotSearchAutoRefreshEnabled { get; set; } = true;
+
+    public int BaiduHotSearchAutoRefreshIntervalMinutes { get; set; } = 15;
+
+    public string BaiduHotSearchSourceType { get; set; } = BaiduHotSearchSourceTypes.Official;
+
+    public bool WeatherAutoRefreshEnabled { get; set; } = true;
+
+    public int WeatherAutoRefreshIntervalMinutes { get; set; } = 12;
+
+    public bool Stcn24ForumAutoRefreshEnabled { get; set; } = true;
+
+    public int Stcn24ForumAutoRefreshIntervalMinutes { get; set; } = 20;
+
+    public string Stcn24ForumSourceType { get; set; } = Stcn24ForumSourceTypes.LatestCreated;
+
+    public ComponentSettingsSnapshot Clone()
+    {
+        var clone = (ComponentSettingsSnapshot)MemberwiseClone();
+
+        var schedules = new List<ImportedClassScheduleSnapshot>(ImportedClassSchedules?.Count ?? 0);
+        if (ImportedClassSchedules is not null)
+        {
+            foreach (var schedule in ImportedClassSchedules)
+            {
+                if (schedule is null)
+                {
+                    continue;
+                }
+
+                schedules.Add(new ImportedClassScheduleSnapshot
+                {
+                    Id = schedule.Id,
+                    DisplayName = schedule.DisplayName,
+                    FilePath = schedule.FilePath
+                });
+            }
+        }
+
+        clone.ImportedClassSchedules = schedules;
+        clone.WorldClockTimeZoneIds = WorldClockTimeZoneIds is { Count: > 0 }
+            ? new List<string>(WorldClockTimeZoneIds)
+            : [];
+
+        return clone;
+    }
+}

LanMountainDesktop/Models/DailyArtworkMirrorSources.cs

@@ -0,0 +1,16 @@
+using System;
+
+namespace LanMountainDesktop.Models;
+
+public static class DailyArtworkMirrorSources
+{
+    public const string Domestic = "Domestic";
+    public const string Overseas = "Overseas";
+
+    public static string Normalize(string? value)
+    {
+        return string.Equals(value, Domestic, StringComparison.OrdinalIgnoreCase)
+            ? Domestic
+            : Overseas;
+    }
+}

LanMountainDesktop/Models/IfengNewsChannelTypes.cs

@@ -0,0 +1,32 @@
+using System;
+using System.Collections.Generic;
+
+namespace LanMountainDesktop.Models;
+
+public static class IfengNewsChannelTypes
+{
+    public const string Comprehensive = "Comprehensive";
+    public const string Mainland = "Mainland";
+    public const string Taiwan = "Taiwan";
+
+    public static IReadOnlyList<string> SupportedValues { get; } =
+    [
+        Comprehensive,
+        Mainland,
+        Taiwan
+    ];
+
+    public static string Normalize(string? value)
+    {
+        var candidate = value?.Trim() ?? string.Empty;
+        foreach (var supported in SupportedValues)
+        {
+            if (string.Equals(candidate, supported, StringComparison.OrdinalIgnoreCase))
+            {
+                return supported;
+            }
+        }
+
+        return Comprehensive;
+    }
+}

LanMountainDesktop/Models/RecommendationDataModels.cs

@@ -1,4 +1,5 @@
-using System;
+using System;
+using System.Collections.Generic;
 
 namespace LanMountainDesktop.Models;
 
@@ -10,6 +11,7 @@ public sealed record DailyArtworkSnapshot(
     string? Museum,
     string? ArtworkUrl,
     string? ImageUrl,
+    string? ThumbnailDataUrl,
     DateTimeOffset FetchedAt);
 
 public sealed record DailyPoetrySnapshot(
@@ -19,3 +21,77 @@ public sealed record DailyPoetrySnapshot(
     string? Author,
     string? Category,
     DateTimeOffset FetchedAt);
+
+public sealed record DailyNewsItemSnapshot(
+    string Title,
+    string? Summary,
+    string Url,
+    string? ImageUrl,
+    string? PublishTime);
+
+public sealed record DailyNewsSnapshot(
+    string Provider,
+    string Source,
+    IReadOnlyList<DailyNewsItemSnapshot> Items,
+    DateTimeOffset FetchedAt);
+
+public sealed record BilibiliHotSearchItemSnapshot(
+    string Title,
+    string Keyword,
+    string Url,
+    long? HeatScore,
+    bool HasHotTag,
+    string? IconUrl);
+
+public sealed record BilibiliHotSearchSnapshot(
+    string Provider,
+    string Source,
+    string SearchPlaceholder,
+    string SearchUrl,
+    string MoreHotUrl,
+    IReadOnlyList<BilibiliHotSearchItemSnapshot> Items,
+    DateTimeOffset FetchedAt);
+
+public sealed record BaiduHotSearchItemSnapshot(
+    string Title,
+    string Url,
+    long? HeatScore);
+
+public sealed record BaiduHotSearchSnapshot(
+    string Provider,
+    string Source,
+    string BoardUrl,
+    IReadOnlyList<BaiduHotSearchItemSnapshot> Items,
+    DateTimeOffset FetchedAt);
+
+public sealed record DailyWordSnapshot(
+    string Provider,
+    string Word,
+    string? UkPronunciation,
+    string? UsPronunciation,
+    string Meaning,
+    string? ExampleSentence,
+    string? ExampleTranslation,
+    string? SourceUrl,
+    DateTimeOffset FetchedAt);
+
+public sealed record ExchangeRateSnapshot(
+    string Provider,
+    string Source,
+    string BaseCurrency,
+    string TargetCurrency,
+    decimal Rate,
+    DateTimeOffset FetchedAt);
+
+public sealed record Stcn24ForumPostItemSnapshot(
+    string Title,
+    string Url,
+    string? AuthorDisplayName,
+    string? AuthorAvatarUrl,
+    DateTimeOffset? CreatedAt);
+
+public sealed record Stcn24ForumPostsSnapshot(
+    string Provider,
+    string Source,
+    IReadOnlyList<Stcn24ForumPostItemSnapshot> Items,
+    DateTimeOffset FetchedAt);

LanMountainDesktop/Models/RefreshIntervalCatalog.cs

@@ -0,0 +1,74 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace LanMountainDesktop.Models;
+
+public static class RefreshIntervalCatalog
+{
+    public static IReadOnlyList<int> SupportedIntervalsMinutes { get; } =
+    [
+        5,
+        10,
+        12,
+        15,
+        20,
+        30,
+        40,
+        60,
+        180,
+        360,
+        720,
+        1440
+    ];
+
+    public static int Normalize(int minutes, int fallbackMinutes)
+    {
+        if (minutes <= 0)
+        {
+            return fallbackMinutes;
+        }
+
+        if (SupportedIntervalsMinutes.Contains(minutes))
+        {
+            return minutes;
+        }
+
+        return SupportedIntervalsMinutes
+            .OrderBy(value => Math.Abs(value - minutes))
+            .FirstOrDefault(fallbackMinutes);
+    }
+
+    public static string ToLocalizationKeySuffix(int minutes)
+    {
+        return minutes switch
+        {
+            5 => "5m",
+            10 => "10m",
+            12 => "12m",
+            15 => "15m",
+            20 => "20m",
+            30 => "30m",
+            40 => "40m",
+            60 => "1h",
+            180 => "3h",
+            360 => "6h",
+            720 => "12h",
+            1440 => "24h",
+            _ => $"{minutes}m"
+        };
+    }
+
+    public static string ToEnglishFallbackLabel(int minutes)
+    {
+        return minutes switch
+        {
+            60 => "1 hour",
+            180 => "3 hours",
+            360 => "6 hours",
+            720 => "12 hours",
+            1440 => "24 hours",
+            _ => $"{minutes} min"
+        };
+    }
+}

LanMountainDesktop/Models/StartMenuAppEntry.cs

@@ -1,4 +1,6 @@
-namespace LanMountainDesktop.Models;
+using System.Collections.Generic;
+
+namespace LanMountainDesktop.Models;
 
 public sealed class StartMenuAppEntry
 {
@@ -9,4 +11,10 @@ public sealed class StartMenuAppEntry
     public required string RelativePath { get; init; }
 
     public byte[]? IconPngBytes { get; init; }
+
+    public string? LaunchExecutable { get; init; }
+
+    public IReadOnlyList<string> LaunchArguments { get; init; } = [];
+
+    public string? WorkingDirectory { get; init; }
 }

LanMountainDesktop/Models/Stcn24ForumSourceTypes.cs

@@ -0,0 +1,42 @@
+using System;
+using System.Collections.Generic;
+
+namespace LanMountainDesktop.Models;
+
+public static class Stcn24ForumSourceTypes
+{
+    public const string LatestCreated = "LatestCreated";
+    public const string LatestActivity = "LatestActivity";
+    public const string MostReplies = "MostReplies";
+    public const string EarliestCreated = "EarliestCreated";
+    public const string EarliestActivity = "EarliestActivity";
+    public const string LeastReplies = "LeastReplies";
+    public const string FrontpageLatest = "FrontpageLatest";
+    public const string FrontpageEarliest = "FrontpageEarliest";
+
+    public static IReadOnlyList<string> SupportedValues { get; } =
+    [
+        LatestCreated,
+        LatestActivity,
+        MostReplies,
+        EarliestCreated,
+        EarliestActivity,
+        LeastReplies,
+        FrontpageLatest,
+        FrontpageEarliest
+    ];
+
+    public static string Normalize(string? value)
+    {
+        var candidate = value?.Trim() ?? string.Empty;
+        foreach (var supported in SupportedValues)
+        {
+            if (string.Equals(candidate, supported, StringComparison.OrdinalIgnoreCase))
+            {
+                return supported;
+            }
+        }
+
+        return LatestCreated;
+    }
+}

LanMountainDesktop/Models/TaskbarActionId.cs

@@ -7,5 +7,6 @@ public enum TaskbarActionId
     AddDesktopPage,
     DeleteDesktopPage,
     DeleteComponent,
-    EditComponent
+    EditComponent,
+    HideLauncherEntry
 }

LanMountainDesktop/Services/AppSettingsService.cs

@@ -11,6 +11,13 @@ public sealed class AppSettingsService
     {
         WriteIndented = true
     };
+    private static readonly object CacheGate = new();
+    private static readonly TimeSpan CacheProbeInterval = TimeSpan.FromMilliseconds(400);
+
+    private static string? _cachedPath;
+    private static AppSettingsSnapshot? _cachedSnapshot;
+    private static DateTime _cachedWriteTimeUtc = DateTime.MinValue;
+    private static DateTime _lastProbeUtc = DateTime.MinValue;
 
     private readonly string _settingsPath;
 
@@ -25,14 +32,32 @@ public sealed class AppSettingsService
     {
         try
         {
-            if (!File.Exists(_settingsPath))
+            lock (CacheGate)
             {
-                return new AppSettingsSnapshot();
-            }
+                var nowUtc = DateTime.UtcNow;
+                if (TryGetCachedWithoutProbe(nowUtc, out var cached))
+                {
+                    return cached;
+                }
 
-            var json = File.ReadAllText(_settingsPath);
-            var snapshot = JsonSerializer.Deserialize<AppSettingsSnapshot>(json, SerializerOptions);
-            return snapshot ?? new AppSettingsSnapshot();
+                var hasFile = File.Exists(_settingsPath);
+                var writeTimeUtc = hasFile
+                    ? File.GetLastWriteTimeUtc(_settingsPath)
+                    : DateTime.MinValue;
+
+                _lastProbeUtc = nowUtc;
+                if (TryGetCachedAfterProbe(writeTimeUtc, out cached))
+                {
+                    return cached;
+                }
+
+                var loadedSnapshot = hasFile
+                    ? LoadSnapshotFromDisk()
+                    : new AppSettingsSnapshot();
+
+                UpdateCache(loadedSnapshot, writeTimeUtc, nowUtc);
+                return loadedSnapshot.Clone();
+            }
         }
         catch
         {
@@ -42,6 +67,8 @@ public sealed class AppSettingsService
 
     public void Save(AppSettingsSnapshot snapshot)
     {
+        var snapshotToPersist = snapshot?.Clone() ?? new AppSettingsSnapshot();
+
         try
         {
             var directory = Path.GetDirectoryName(_settingsPath);
@@ -50,13 +77,70 @@ public sealed class AppSettingsService
                 Directory.CreateDirectory(directory);
             }
 
-            var json = JsonSerializer.Serialize(snapshot, SerializerOptions);
+            var json = JsonSerializer.Serialize(snapshotToPersist, SerializerOptions);
             File.WriteAllText(_settingsPath, json);
+
+            var writeTimeUtc = File.Exists(_settingsPath)
+                ? File.GetLastWriteTimeUtc(_settingsPath)
+                : DateTime.UtcNow;
+
+            lock (CacheGate)
+            {
+                UpdateCache(snapshotToPersist, writeTimeUtc, DateTime.UtcNow);
+            }
         }
         catch
         {
             // Swallow persistence errors to keep UI interactions uninterrupted.
         }
     }
-}
 
+    private bool TryGetCachedWithoutProbe(DateTime nowUtc, out AppSettingsSnapshot snapshot)
+    {
+        if (string.Equals(_cachedPath, _settingsPath, StringComparison.Ordinal) &&
+            _cachedSnapshot is not null &&
+            nowUtc - _lastProbeUtc < CacheProbeInterval)
+        {
+            snapshot = _cachedSnapshot.Clone();
+            return true;
+        }
+
+        snapshot = null!;
+        return false;
+    }
+
+    private bool TryGetCachedAfterProbe(DateTime writeTimeUtc, out AppSettingsSnapshot snapshot)
+    {
+        if (string.Equals(_cachedPath, _settingsPath, StringComparison.Ordinal) &&
+            _cachedSnapshot is not null &&
+            writeTimeUtc == _cachedWriteTimeUtc)
+        {
+            snapshot = _cachedSnapshot.Clone();
+            return true;
+        }
+
+        snapshot = null!;
+        return false;
+    }
+
+    private AppSettingsSnapshot LoadSnapshotFromDisk()
+    {
+        try
+        {
+            var json = File.ReadAllText(_settingsPath);
+            return JsonSerializer.Deserialize<AppSettingsSnapshot>(json, SerializerOptions) ?? new AppSettingsSnapshot();
+        }
+        catch
+        {
+            return new AppSettingsSnapshot();
+        }
+    }
+
+    private void UpdateCache(AppSettingsSnapshot snapshot, DateTime writeTimeUtc, DateTime probeTimeUtc)
+    {
+        _cachedPath = _settingsPath;
+        _cachedSnapshot = snapshot.Clone();
+        _cachedWriteTimeUtc = writeTimeUtc;
+        _lastProbeUtc = probeTimeUtc;
+    }
+}

LanMountainDesktop/Services/CalculatorDataService.cs

@@ -0,0 +1,123 @@
+using System;
+using System.Globalization;
+
+namespace LanMountainDesktop.Services;
+
+public sealed class CalculatorDataService : ICalculatorDataService
+{
+    private const int MaxInputLength = 18;
+
+    public string ApplyInputToken(string currentInput, string token)
+    {
+        var normalized = NormalizeInput(currentInput);
+        if (string.IsNullOrWhiteSpace(token))
+        {
+            return normalized;
+        }
+
+        if (string.Equals(token, CalculatorInputTokens.Clear, StringComparison.OrdinalIgnoreCase))
+        {
+            return "0";
+        }
+
+        if (string.Equals(token, CalculatorInputTokens.Backspace, StringComparison.OrdinalIgnoreCase))
+        {
+            if (normalized.Length <= 1)
+            {
+                return "0";
+            }
+
+            var trimmed = normalized[..^1];
+            if (trimmed is "-" or "" or "-0")
+            {
+                return "0";
+            }
+
+            return trimmed;
+        }
+
+        if (string.Equals(token, CalculatorInputTokens.DecimalPoint, StringComparison.Ordinal))
+        {
+            if (normalized.Contains('.', StringComparison.Ordinal))
+            {
+                return normalized;
+            }
+
+            if (normalized.Length >= MaxInputLength)
+            {
+                return normalized;
+            }
+
+            return $"{normalized}.";
+        }
+
+        if (token is "00")
+        {
+            if (normalized == "0")
+            {
+                return "0";
+            }
+
+            if (normalized.Length + 2 > MaxInputLength)
+            {
+                return normalized;
+            }
+
+            return normalized + "00";
+        }
+
+        if (token.Length == 1 && char.IsDigit(token[0]))
+        {
+            if (normalized == "0")
+            {
+                return token;
+            }
+
+            if (normalized.Length >= MaxInputLength)
+            {
+                return normalized;
+            }
+
+            return normalized + token;
+        }
+
+        return normalized;
+    }
+
+    public decimal ParseAmountOrZero(string? inputText)
+    {
+        var normalized = NormalizeInput(inputText);
+        if (decimal.TryParse(
+            normalized,
+            NumberStyles.AllowLeadingSign | NumberStyles.AllowDecimalPoint,
+            CultureInfo.InvariantCulture,
+            out var amount))
+        {
+            return amount;
+        }
+
+        return 0m;
+    }
+
+    public string FormatAmount(decimal amount, int maxFractionDigits = 4)
+    {
+        var safeDigits = Math.Clamp(maxFractionDigits, 0, 8);
+        var pattern = safeDigits == 0 ? "0" : $"0.{new string('#', safeDigits)}";
+        return amount.ToString(pattern, CultureInfo.InvariantCulture);
+    }
+
+    private static string NormalizeInput(string? input)
+    {
+        if (string.IsNullOrWhiteSpace(input))
+        {
+            return "0";
+        }
+
+        var trimmed = input.Trim();
+        return trimmed switch
+        {
+            "-" or "-0" => "0",
+            _ => trimmed
+        };
+    }
+}

LanMountainDesktop/Services/ClassIslandScheduleDataService.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Globalization;
 using System.IO;
@@ -39,7 +39,7 @@ public sealed class ClassIslandScheduleDataService : IClassIslandScheduleDataSer
     };
 
     private static readonly IDeserializer CsesDeserializer = new DeserializerBuilder()
-        .WithNamingConvention(CamelCaseNamingConvention.Instance)
+        .WithNamingConvention(UnderscoredNamingConvention.Instance)
         .IgnoreUnmatchedProperties()
         .Build();
 
@@ -50,7 +50,7 @@ public sealed class ClassIslandScheduleDataService : IClassIslandScheduleDataSer
         {
             if (string.IsNullOrWhiteSpace(inputPath))
             {
-                inputPath = ResolveImportedSchedulePathFromAppSettings();
+                inputPath = ResolveImportedSchedulePathFromComponentSettings();
             }
 
             var source = ResolveSource(inputPath, profileFileName, warnings);
@@ -180,11 +180,11 @@ public sealed class ClassIslandScheduleDataService : IClassIslandScheduleDataSer
         return result;
     }
 
-    private static string? ResolveImportedSchedulePathFromAppSettings()
+    private static string? ResolveImportedSchedulePathFromComponentSettings()
     {
         try
         {
-            var snapshot = new AppSettingsService().Load();
+            var snapshot = new ComponentSettingsService().Load();
             if (snapshot.ImportedClassSchedules.Count == 0)
             {
                 return null;

LanMountainDesktop/Services/ClockSecondHandMode.cs

@@ -0,0 +1,21 @@
+using System;
+
+namespace LanMountainDesktop.Services;
+
+public static class ClockSecondHandMode
+{
+    public const string Tick = "Tick";
+    public const string Sweep = "Sweep";
+
+    public static string Normalize(string? mode)
+    {
+        return string.Equals(mode?.Trim(), Sweep, StringComparison.OrdinalIgnoreCase)
+            ? Sweep
+            : Tick;
+    }
+
+    public static bool IsSweep(string? mode)
+    {
+        return string.Equals(Normalize(mode), Sweep, StringComparison.OrdinalIgnoreCase);
+    }
+}

LanMountainDesktop/Services/ComponentSettingsService.cs

@@ -0,0 +1,425 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text.Json;
+using LanMountainDesktop.Models;
+
+namespace LanMountainDesktop.Services;
+
+public sealed class ComponentSettingsService
+{
+    private static readonly JsonSerializerOptions SerializerOptions = new()
+    {
+        WriteIndented = true
+    };
+
+    private static readonly object CacheGate = new();
+    private static readonly TimeSpan CacheProbeInterval = TimeSpan.FromMilliseconds(400);
+
+    private static string? _cachedPath;
+    private static ComponentSettingsSnapshot? _cachedSnapshot;
+    private static DateTime _cachedWriteTimeUtc = DateTime.MinValue;
+    private static DateTime _lastProbeUtc = DateTime.MinValue;
+
+    private readonly string _settingsPath;
+    private readonly string _legacyAppSettingsPath;
+
+    public ComponentSettingsService()
+    {
+        var appData = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
+        var settingsDirectory = Path.Combine(appData, "LanMountainDesktop");
+        _settingsPath = Path.Combine(settingsDirectory, "component-settings.json");
+        _legacyAppSettingsPath = Path.Combine(settingsDirectory, "settings.json");
+    }
+
+    public ComponentSettingsSnapshot Load()
+    {
+        try
+        {
+            lock (CacheGate)
+            {
+                var nowUtc = DateTime.UtcNow;
+                if (TryGetCachedWithoutProbe(nowUtc, out var cached))
+                {
+                    return cached;
+                }
+
+                var hasFile = File.Exists(_settingsPath);
+                var writeTimeUtc = hasFile
+                    ? File.GetLastWriteTimeUtc(_settingsPath)
+                    : DateTime.MinValue;
+
+                _lastProbeUtc = nowUtc;
+                if (TryGetCachedAfterProbe(writeTimeUtc, out cached))
+                {
+                    return cached;
+                }
+
+                ComponentSettingsSnapshot loadedSnapshot;
+                var loadedFromLegacy = false;
+                if (hasFile)
+                {
+                    loadedSnapshot = LoadSnapshotFromDisk();
+                }
+                else if (TryLoadLegacySnapshot(out var migratedSnapshot))
+                {
+                    loadedSnapshot = migratedSnapshot;
+                    loadedFromLegacy = true;
+                }
+                else
+                {
+                    loadedSnapshot = new ComponentSettingsSnapshot();
+                }
+
+                var normalizedSnapshot = NormalizeSnapshot(loadedSnapshot);
+                if (loadedFromLegacy)
+                {
+                    writeTimeUtc = PersistSnapshotToDisk(normalizedSnapshot);
+                }
+
+                UpdateCache(normalizedSnapshot, writeTimeUtc, nowUtc);
+                return normalizedSnapshot.Clone();
+            }
+        }
+        catch
+        {
+            return new ComponentSettingsSnapshot();
+        }
+    }
+
+    public void Save(ComponentSettingsSnapshot snapshot)
+    {
+        var snapshotToPersist = NormalizeSnapshot(snapshot);
+
+        try
+        {
+            var writeTimeUtc = PersistSnapshotToDisk(snapshotToPersist);
+
+            lock (CacheGate)
+            {
+                UpdateCache(snapshotToPersist, writeTimeUtc, DateTime.UtcNow);
+            }
+        }
+        catch
+        {
+            // Swallow persistence errors to keep UI interactions uninterrupted.
+        }
+    }
+
+    private bool TryGetCachedWithoutProbe(DateTime nowUtc, out ComponentSettingsSnapshot snapshot)
+    {
+        if (string.Equals(_cachedPath, _settingsPath, StringComparison.Ordinal) &&
+            _cachedSnapshot is not null &&
+            nowUtc - _lastProbeUtc < CacheProbeInterval)
+        {
+            snapshot = _cachedSnapshot.Clone();
+            return true;
+        }
+
+        snapshot = null!;
+        return false;
+    }
+
+    private bool TryGetCachedAfterProbe(DateTime writeTimeUtc, out ComponentSettingsSnapshot snapshot)
+    {
+        if (string.Equals(_cachedPath, _settingsPath, StringComparison.Ordinal) &&
+            _cachedSnapshot is not null &&
+            writeTimeUtc == _cachedWriteTimeUtc)
+        {
+            snapshot = _cachedSnapshot.Clone();
+            return true;
+        }
+
+        snapshot = null!;
+        return false;
+    }
+
+    private ComponentSettingsSnapshot LoadSnapshotFromDisk()
+    {
+        try
+        {
+            var json = File.ReadAllText(_settingsPath);
+            var snapshot = JsonSerializer.Deserialize<ComponentSettingsSnapshot>(json, SerializerOptions);
+            return NormalizeSnapshot(snapshot);
+        }
+        catch
+        {
+            return new ComponentSettingsSnapshot();
+        }
+    }
+
+    private bool TryLoadLegacySnapshot(out ComponentSettingsSnapshot snapshot)
+    {
+        snapshot = new ComponentSettingsSnapshot();
+        try
+        {
+            if (!File.Exists(_legacyAppSettingsPath))
+            {
+                return false;
+            }
+
+            var legacyJson = File.ReadAllText(_legacyAppSettingsPath);
+            var legacy = JsonSerializer.Deserialize<LegacyComponentSettingsSnapshot>(legacyJson, SerializerOptions);
+            if (legacy is null)
+            {
+                return false;
+            }
+
+            snapshot = new ComponentSettingsSnapshot
+            {
+                DailyArtworkMirrorSource = legacy.DailyArtworkMirrorSource,
+                ImportedClassSchedules = legacy.ImportedClassSchedules ?? [],
+                ActiveImportedClassScheduleId = legacy.ActiveImportedClassScheduleId ?? string.Empty,
+                StudyEnvironmentShowDisplayDb = legacy.StudyEnvironmentShowDisplayDb,
+                StudyEnvironmentShowDbfs = legacy.StudyEnvironmentShowDbfs,
+                DesktopClockTimeZoneId = legacy.DesktopClockTimeZoneId,
+                DesktopClockSecondHandMode = legacy.DesktopClockSecondHandMode,
+                WorldClockTimeZoneIds = legacy.WorldClockTimeZoneIds ?? [],
+                WorldClockSecondHandMode = legacy.WorldClockSecondHandMode,
+                CnrDailyNewsAutoRotateEnabled = legacy.CnrDailyNewsAutoRotateEnabled,
+                CnrDailyNewsAutoRotateIntervalMinutes = legacy.CnrDailyNewsAutoRotateIntervalMinutes,
+                IfengNewsAutoRefreshEnabled = legacy.IfengNewsAutoRefreshEnabled,
+                IfengNewsAutoRefreshIntervalMinutes = legacy.IfengNewsAutoRefreshIntervalMinutes,
+                IfengNewsChannelType = legacy.IfengNewsChannelType,
+                DailyWordAutoRefreshEnabled = legacy.DailyWordAutoRefreshEnabled,
+                DailyWordAutoRefreshIntervalMinutes = legacy.DailyWordAutoRefreshIntervalMinutes,
+                BilibiliHotSearchAutoRefreshEnabled = legacy.BilibiliHotSearchAutoRefreshEnabled,
+                BilibiliHotSearchAutoRefreshIntervalMinutes = legacy.BilibiliHotSearchAutoRefreshIntervalMinutes,
+                BaiduHotSearchAutoRefreshEnabled = legacy.BaiduHotSearchAutoRefreshEnabled,
+                BaiduHotSearchAutoRefreshIntervalMinutes = legacy.BaiduHotSearchAutoRefreshIntervalMinutes,
+                BaiduHotSearchSourceType = legacy.BaiduHotSearchSourceType,
+                WeatherAutoRefreshEnabled = legacy.WeatherAutoRefreshEnabled,
+                WeatherAutoRefreshIntervalMinutes = legacy.WeatherAutoRefreshIntervalMinutes,
+                Stcn24ForumAutoRefreshEnabled = legacy.Stcn24ForumAutoRefreshEnabled,
+                Stcn24ForumAutoRefreshIntervalMinutes = legacy.Stcn24ForumAutoRefreshIntervalMinutes,
+                Stcn24ForumSourceType = legacy.Stcn24ForumSourceType
+            };
+
+            return true;
+        }
+        catch
+        {
+            return false;
+        }
+    }
+
+    private DateTime PersistSnapshotToDisk(ComponentSettingsSnapshot snapshot)
+    {
+        var directory = Path.GetDirectoryName(_settingsPath);
+        if (!string.IsNullOrWhiteSpace(directory))
+        {
+            Directory.CreateDirectory(directory);
+        }
+
+        var json = JsonSerializer.Serialize(snapshot, SerializerOptions);
+        File.WriteAllText(_settingsPath, json);
+
+        return File.Exists(_settingsPath)
+            ? File.GetLastWriteTimeUtc(_settingsPath)
+            : DateTime.UtcNow;
+    }
+
+    private static ComponentSettingsSnapshot NormalizeSnapshot(ComponentSettingsSnapshot? snapshot)
+    {
+        var normalized = snapshot?.Clone() ?? new ComponentSettingsSnapshot();
+
+        normalized.DailyArtworkMirrorSource = DailyArtworkMirrorSources.Normalize(normalized.DailyArtworkMirrorSource);
+        normalized.ImportedClassSchedules = NormalizeImportedSchedules(normalized.ImportedClassSchedules);
+        normalized.ActiveImportedClassScheduleId = NormalizeActiveScheduleId(
+            normalized.ActiveImportedClassScheduleId,
+            normalized.ImportedClassSchedules);
+
+        if (!normalized.StudyEnvironmentShowDisplayDb && !normalized.StudyEnvironmentShowDbfs)
+        {
+            normalized.StudyEnvironmentShowDisplayDb = true;
+        }
+
+        normalized.DesktopClockTimeZoneId = NormalizeDesktopClockTimeZoneId(normalized.DesktopClockTimeZoneId);
+        normalized.DesktopClockSecondHandMode = ClockSecondHandMode.Normalize(normalized.DesktopClockSecondHandMode);
+        normalized.WorldClockTimeZoneIds = WorldClockTimeZoneCatalog
+            .NormalizeTimeZoneIds(normalized.WorldClockTimeZoneIds)
+            .ToList();
+        normalized.WorldClockSecondHandMode = ClockSecondHandMode.Normalize(normalized.WorldClockSecondHandMode);
+        normalized.CnrDailyNewsAutoRotateIntervalMinutes = NormalizeCnrInterval(normalized.CnrDailyNewsAutoRotateIntervalMinutes);
+        normalized.IfengNewsAutoRefreshIntervalMinutes = NormalizeIfengNewsInterval(normalized.IfengNewsAutoRefreshIntervalMinutes);
+        normalized.IfengNewsChannelType = IfengNewsChannelTypes.Normalize(normalized.IfengNewsChannelType);
+        normalized.DailyWordAutoRefreshIntervalMinutes = NormalizeDailyWordInterval(normalized.DailyWordAutoRefreshIntervalMinutes);
+        normalized.BilibiliHotSearchAutoRefreshIntervalMinutes = NormalizeBilibiliHotSearchInterval(
+            normalized.BilibiliHotSearchAutoRefreshIntervalMinutes);
+        normalized.BaiduHotSearchAutoRefreshIntervalMinutes = NormalizeBaiduHotSearchInterval(
+            normalized.BaiduHotSearchAutoRefreshIntervalMinutes);
+        normalized.BaiduHotSearchSourceType = BaiduHotSearchSourceTypes.Normalize(normalized.BaiduHotSearchSourceType);
+        normalized.WeatherAutoRefreshIntervalMinutes = NormalizeWeatherInterval(normalized.WeatherAutoRefreshIntervalMinutes);
+        normalized.Stcn24ForumAutoRefreshIntervalMinutes = NormalizeStcn24ForumInterval(normalized.Stcn24ForumAutoRefreshIntervalMinutes);
+        normalized.Stcn24ForumSourceType = Stcn24ForumSourceTypes.Normalize(normalized.Stcn24ForumSourceType);
+
+        return normalized;
+    }
+
+    private static List<ImportedClassScheduleSnapshot> NormalizeImportedSchedules(
+        IReadOnlyList<ImportedClassScheduleSnapshot>? schedules)
+    {
+        if (schedules is null || schedules.Count == 0)
+        {
+            return [];
+        }
+
+        var result = new List<ImportedClassScheduleSnapshot>(schedules.Count);
+        var seenIds = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
+        foreach (var schedule in schedules)
+        {
+            if (schedule is null)
+            {
+                continue;
+            }
+
+            var id = schedule.Id?.Trim() ?? string.Empty;
+            var filePath = schedule.FilePath?.Trim() ?? string.Empty;
+            if (string.IsNullOrWhiteSpace(id) || string.IsNullOrWhiteSpace(filePath))
+            {
+                continue;
+            }
+
+            if (!seenIds.Add(id))
+            {
+                continue;
+            }
+
+            result.Add(new ImportedClassScheduleSnapshot
+            {
+                Id = id,
+                DisplayName = schedule.DisplayName?.Trim() ?? string.Empty,
+                FilePath = filePath
+            });
+        }
+
+        return result;
+    }
+
+    private static string NormalizeActiveScheduleId(
+        string? activeScheduleId,
+        IReadOnlyList<ImportedClassScheduleSnapshot> schedules)
+    {
+        var activeId = activeScheduleId?.Trim() ?? string.Empty;
+        if (schedules.Count == 0)
+        {
+            return string.Empty;
+        }
+
+        if (string.IsNullOrWhiteSpace(activeId))
+        {
+            return schedules[0].Id;
+        }
+
+        return schedules.Any(item => string.Equals(item.Id, activeId, StringComparison.OrdinalIgnoreCase))
+            ? activeId
+            : schedules[0].Id;
+    }
+
+    private static string NormalizeDesktopClockTimeZoneId(string? timeZoneId)
+    {
+        var normalizedId = string.IsNullOrWhiteSpace(timeZoneId)
+            ? "China Standard Time"
+            : timeZoneId.Trim();
+        return WorldClockTimeZoneCatalog.ResolveTimeZoneOrLocal(normalizedId).Id;
+    }
+
+    private static int NormalizeCnrInterval(int minutes)
+    {
+        return RefreshIntervalCatalog.Normalize(minutes, 60);
+    }
+
+    private static int NormalizeDailyWordInterval(int minutes)
+    {
+        return RefreshIntervalCatalog.Normalize(minutes, 360);
+    }
+
+    private static int NormalizeIfengNewsInterval(int minutes)
+    {
+        return RefreshIntervalCatalog.Normalize(minutes, 20);
+    }
+
+    private static int NormalizeBilibiliHotSearchInterval(int minutes)
+    {
+        return RefreshIntervalCatalog.Normalize(minutes, 15);
+    }
+
+    private static int NormalizeBaiduHotSearchInterval(int minutes)
+    {
+        return RefreshIntervalCatalog.Normalize(minutes, 15);
+    }
+
+    private static int NormalizeWeatherInterval(int minutes)
+    {
+        return RefreshIntervalCatalog.Normalize(minutes, 12);
+    }
+
+    private static int NormalizeStcn24ForumInterval(int minutes)
+    {
+        return RefreshIntervalCatalog.Normalize(minutes, 20);
+    }
+
+    private void UpdateCache(ComponentSettingsSnapshot snapshot, DateTime writeTimeUtc, DateTime probeTimeUtc)
+    {
+        _cachedPath = _settingsPath;
+        _cachedSnapshot = snapshot.Clone();
+        _cachedWriteTimeUtc = writeTimeUtc;
+        _lastProbeUtc = probeTimeUtc;
+    }
+
+    private sealed class LegacyComponentSettingsSnapshot
+    {
+        public string DailyArtworkMirrorSource { get; set; } = DailyArtworkMirrorSources.Overseas;
+
+        public List<ImportedClassScheduleSnapshot>? ImportedClassSchedules { get; set; }
+
+        public string? ActiveImportedClassScheduleId { get; set; }
+
+        public bool StudyEnvironmentShowDisplayDb { get; set; } = true;
+
+        public bool StudyEnvironmentShowDbfs { get; set; }
+
+        public string DesktopClockTimeZoneId { get; set; } = "China Standard Time";
+
+        public string DesktopClockSecondHandMode { get; set; } = "Tick";
+
+        public List<string>? WorldClockTimeZoneIds { get; set; }
+
+        public string WorldClockSecondHandMode { get; set; } = "Tick";
+
+        public bool CnrDailyNewsAutoRotateEnabled { get; set; } = true;
+
+        public int CnrDailyNewsAutoRotateIntervalMinutes { get; set; } = 60;
+
+        public bool IfengNewsAutoRefreshEnabled { get; set; } = true;
+
+        public int IfengNewsAutoRefreshIntervalMinutes { get; set; } = 20;
+
+        public string IfengNewsChannelType { get; set; } = IfengNewsChannelTypes.Comprehensive;
+
+        public bool DailyWordAutoRefreshEnabled { get; set; } = true;
+
+        public int DailyWordAutoRefreshIntervalMinutes { get; set; } = 360;
+
+        public bool BilibiliHotSearchAutoRefreshEnabled { get; set; } = true;
+
+        public int BilibiliHotSearchAutoRefreshIntervalMinutes { get; set; } = 15;
+
+        public bool BaiduHotSearchAutoRefreshEnabled { get; set; } = true;
+
+        public int BaiduHotSearchAutoRefreshIntervalMinutes { get; set; } = 15;
+
+        public string BaiduHotSearchSourceType { get; set; } = BaiduHotSearchSourceTypes.Official;
+
+        public bool WeatherAutoRefreshEnabled { get; set; } = true;
+
+        public int WeatherAutoRefreshIntervalMinutes { get; set; } = 12;
+
+        public bool Stcn24ForumAutoRefreshEnabled { get; set; } = true;
+
+        public int Stcn24ForumAutoRefreshIntervalMinutes { get; set; } = 20;
+
+        public string Stcn24ForumSourceType { get; set; } = Stcn24ForumSourceTypes.LatestCreated;
+    }
+}

LanMountainDesktop/Services/GitHubReleaseUpdateService.cs

@@ -0,0 +1,482 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.IO;
+using System.Linq;
+using System.Net.Http;
+using System.Runtime.InteropServices;
+using System.Text.Json;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace LanMountainDesktop.Services;
+
+public sealed record GitHubReleaseAsset(
+    string Name,
+    string BrowserDownloadUrl,
+    long SizeBytes);
+
+public sealed record GitHubReleaseInfo(
+    string TagName,
+    string Name,
+    bool IsPrerelease,
+    bool IsDraft,
+    DateTimeOffset PublishedAt,
+    IReadOnlyList<GitHubReleaseAsset> Assets);
+
+public sealed record UpdateCheckResult(
+    bool Success,
+    bool IsUpdateAvailable,
+    string CurrentVersionText,
+    string LatestVersionText,
+    GitHubReleaseInfo? Release,
+    GitHubReleaseAsset? PreferredAsset,
+    string? ErrorMessage);
+
+public sealed record UpdateDownloadResult(
+    bool Success,
+    string? FilePath,
+    string? ErrorMessage);
+
+public sealed class GitHubReleaseUpdateService : IDisposable
+{
+    private const string GithubApiVersion = "2022-11-28";
+
+    private readonly string _owner;
+    private readonly string _repo;
+    private readonly HttpClient _httpClient;
+    private readonly bool _ownsHttpClient;
+
+    public GitHubReleaseUpdateService(
+        string owner,
+        string repo,
+        HttpClient? httpClient = null)
+    {
+        _owner = owner?.Trim() ?? string.Empty;
+        _repo = repo?.Trim() ?? string.Empty;
+
+        if (httpClient is null)
+        {
+            _httpClient = new HttpClient
+            {
+                Timeout = TimeSpan.FromSeconds(20)
+            };
+            _ownsHttpClient = true;
+        }
+        else
+        {
+            _httpClient = httpClient;
+            _ownsHttpClient = false;
+        }
+
+        if (!_httpClient.DefaultRequestHeaders.UserAgent.Any())
+        {
+            _httpClient.DefaultRequestHeaders.UserAgent.ParseAdd("LanMountainDesktop-Updater/1.0");
+        }
+
+        if (!_httpClient.DefaultRequestHeaders.Accept.Any())
+        {
+            _httpClient.DefaultRequestHeaders.Accept.ParseAdd("application/vnd.github+json");
+        }
+
+        if (!_httpClient.DefaultRequestHeaders.Contains("X-GitHub-Api-Version"))
+        {
+            _httpClient.DefaultRequestHeaders.Add("X-GitHub-Api-Version", GithubApiVersion);
+        }
+    }
+
+    public void Dispose()
+    {
+        if (_ownsHttpClient)
+        {
+            _httpClient.Dispose();
+        }
+    }
+
+    public async Task<UpdateCheckResult> CheckForUpdatesAsync(
+        Version currentVersion,
+        bool includePrerelease,
+        CancellationToken cancellationToken = default)
+    {
+        var normalizedCurrentVersionText = NormalizeVersion(currentVersion).ToString(3);
+
+        if (string.IsNullOrWhiteSpace(_owner) || string.IsNullOrWhiteSpace(_repo))
+        {
+            return new UpdateCheckResult(
+                Success: false,
+                IsUpdateAvailable: false,
+                CurrentVersionText: normalizedCurrentVersionText,
+                LatestVersionText: "-",
+                Release: null,
+                PreferredAsset: null,
+                ErrorMessage: "Repository information is not configured.");
+        }
+
+        try
+        {
+            var release = includePrerelease
+                ? await GetLatestReleaseIncludingPrereleaseAsync(cancellationToken)
+                : await GetLatestStableReleaseAsync(cancellationToken);
+
+            if (release is null)
+            {
+                return new UpdateCheckResult(
+                    Success: false,
+                    IsUpdateAvailable: false,
+                    CurrentVersionText: normalizedCurrentVersionText,
+                    LatestVersionText: "-",
+                    Release: null,
+                    PreferredAsset: null,
+                    ErrorMessage: "No release data was returned from GitHub.");
+            }
+
+            var hasParsedTagVersion = TryParseVersion(release.TagName, out var parsedTagVersion);
+            var latestVersionText = hasParsedTagVersion && parsedTagVersion is not null
+                ? parsedTagVersion.ToString(3)
+                : release.TagName;
+
+            var isUpdateAvailable = parsedTagVersion is not null && parsedTagVersion > currentVersion;
+            var preferredAsset = isUpdateAvailable
+                ? SelectPreferredInstallerAsset(release.Assets)
+                : null;
+
+            return new UpdateCheckResult(
+                Success: true,
+                IsUpdateAvailable: isUpdateAvailable,
+                CurrentVersionText: normalizedCurrentVersionText,
+                LatestVersionText: latestVersionText,
+                Release: release,
+                PreferredAsset: preferredAsset,
+                ErrorMessage: null);
+        }
+        catch (OperationCanceledException)
+        {
+            throw;
+        }
+        catch (Exception ex)
+        {
+            return new UpdateCheckResult(
+                Success: false,
+                IsUpdateAvailable: false,
+                CurrentVersionText: normalizedCurrentVersionText,
+                LatestVersionText: "-",
+                Release: null,
+                PreferredAsset: null,
+                ErrorMessage: ex.Message);
+        }
+    }
+
+    public async Task<UpdateDownloadResult> DownloadAssetAsync(
+        GitHubReleaseAsset asset,
+        string destinationFilePath,
+        IProgress<double>? progress = null,
+        CancellationToken cancellationToken = default)
+    {
+        if (asset is null)
+        {
+            return new UpdateDownloadResult(false, null, "Asset is null.");
+        }
+
+        if (string.IsNullOrWhiteSpace(asset.BrowserDownloadUrl))
+        {
+            return new UpdateDownloadResult(false, null, "Asset download url is empty.");
+        }
+
+        if (string.IsNullOrWhiteSpace(destinationFilePath))
+        {
+            return new UpdateDownloadResult(false, null, "Destination file path is empty.");
+        }
+
+        try
+        {
+            var directory = Path.GetDirectoryName(destinationFilePath);
+            if (!string.IsNullOrWhiteSpace(directory))
+            {
+                Directory.CreateDirectory(directory);
+            }
+
+            using var response = await _httpClient.GetAsync(
+                asset.BrowserDownloadUrl,
+                HttpCompletionOption.ResponseHeadersRead,
+                cancellationToken);
+
+            if (!response.IsSuccessStatusCode)
+            {
+                return new UpdateDownloadResult(
+                    false,
+                    null,
+                    $"HTTP {(int)response.StatusCode}: {response.ReasonPhrase}");
+            }
+
+            var contentLength = response.Content.Headers.ContentLength ??
+                                (asset.SizeBytes > 0 ? asset.SizeBytes : -1);
+
+            await using var sourceStream = await response.Content.ReadAsStreamAsync(cancellationToken);
+            await using var destinationStream = File.Create(destinationFilePath);
+
+            var buffer = new byte[81920];
+            long totalRead = 0;
+            int read;
+            while ((read = await sourceStream.ReadAsync(buffer, cancellationToken)) > 0)
+            {
+                await destinationStream.WriteAsync(buffer.AsMemory(0, read), cancellationToken);
+                totalRead += read;
+
+                if (contentLength > 0)
+                {
+                    progress?.Report(Math.Clamp(totalRead / (double)contentLength, 0d, 1d));
+                }
+            }
+
+            progress?.Report(1d);
+
+            return new UpdateDownloadResult(true, destinationFilePath, null);
+        }
+        catch (OperationCanceledException)
+        {
+            throw;
+        }
+        catch (Exception ex)
+        {
+            return new UpdateDownloadResult(false, null, ex.Message);
+        }
+    }
+
+    private async Task<GitHubReleaseInfo?> GetLatestStableReleaseAsync(CancellationToken cancellationToken)
+    {
+        var url = $"https://api.github.com/repos/{_owner}/{_repo}/releases/latest";
+        var responseText = await GetResponseTextAsync(url, cancellationToken);
+
+        using var document = JsonDocument.Parse(responseText);
+        return ParseRelease(document.RootElement);
+    }
+
+    private async Task<GitHubReleaseInfo?> GetLatestReleaseIncludingPrereleaseAsync(CancellationToken cancellationToken)
+    {
+        var url = $"https://api.github.com/repos/{_owner}/{_repo}/releases?per_page=20";
+        var responseText = await GetResponseTextAsync(url, cancellationToken);
+
+        using var document = JsonDocument.Parse(responseText);
+        if (document.RootElement.ValueKind != JsonValueKind.Array)
+        {
+            return null;
+        }
+
+        foreach (var item in document.RootElement.EnumerateArray())
+        {
+            var release = ParseRelease(item);
+            if (release is null || release.IsDraft)
+            {
+                continue;
+            }
+
+            return release;
+        }
+
+        return null;
+    }
+
+    private async Task<string> GetResponseTextAsync(string url, CancellationToken cancellationToken)
+    {
+        using var response = await _httpClient.GetAsync(url, cancellationToken);
+        var responseText = await response.Content.ReadAsStringAsync(cancellationToken);
+
+        if (!response.IsSuccessStatusCode)
+        {
+            throw new InvalidOperationException(
+                $"GitHub API request failed with HTTP {(int)response.StatusCode}: {Truncate(responseText, 180)}");
+        }
+
+        return responseText;
+    }
+
+    private static GitHubReleaseInfo? ParseRelease(JsonElement element)
+    {
+        if (element.ValueKind != JsonValueKind.Object)
+        {
+            return null;
+        }
+
+        var tagName = element.TryGetProperty("tag_name", out var tagNode)
+            ? tagNode.GetString()?.Trim()
+            : null;
+
+        if (string.IsNullOrWhiteSpace(tagName))
+        {
+            return null;
+        }
+
+        var name = element.TryGetProperty("name", out var nameNode)
+            ? nameNode.GetString()?.Trim() ?? string.Empty
+            : string.Empty;
+
+        var isPrerelease = element.TryGetProperty("prerelease", out var prereleaseNode) &&
+                           prereleaseNode.ValueKind == JsonValueKind.True;
+
+        var isDraft = element.TryGetProperty("draft", out var draftNode) &&
+                      draftNode.ValueKind == JsonValueKind.True;
+
+        var publishedAt = DateTimeOffset.MinValue;
+        if (element.TryGetProperty("published_at", out var publishedAtNode) &&
+            publishedAtNode.ValueKind == JsonValueKind.String)
+        {
+            var publishedAtText = publishedAtNode.GetString();
+            if (!string.IsNullOrWhiteSpace(publishedAtText) &&
+                DateTimeOffset.TryParse(
+                    publishedAtText,
+                    CultureInfo.InvariantCulture,
+                    DateTimeStyles.AssumeUniversal,
+                    out var parsedPublishedAt))
+            {
+                publishedAt = parsedPublishedAt;
+            }
+        }
+
+        var assets = new List<GitHubReleaseAsset>();
+        if (element.TryGetProperty("assets", out var assetsNode) && assetsNode.ValueKind == JsonValueKind.Array)
+        {
+            foreach (var assetNode in assetsNode.EnumerateArray())
+            {
+                if (assetNode.ValueKind != JsonValueKind.Object)
+                {
+                    continue;
+                }
+
+                var assetName = assetNode.TryGetProperty("name", out var assetNameNode)
+                    ? assetNameNode.GetString()?.Trim()
+                    : null;
+                var browserDownloadUrl = assetNode.TryGetProperty("browser_download_url", out var urlNode)
+                    ? urlNode.GetString()?.Trim()
+                    : null;
+                var sizeBytes = assetNode.TryGetProperty("size", out var sizeNode) && sizeNode.TryGetInt64(out var size)
+                    ? size
+                    : 0L;
+
+                if (string.IsNullOrWhiteSpace(assetName) || string.IsNullOrWhiteSpace(browserDownloadUrl))
+                {
+                    continue;
+                }
+
+                assets.Add(new GitHubReleaseAsset(assetName, browserDownloadUrl, sizeBytes));
+            }
+        }
+
+        return new GitHubReleaseInfo(tagName, name, isPrerelease, isDraft, publishedAt, assets);
+    }
+
+    private static GitHubReleaseAsset? SelectPreferredInstallerAsset(IReadOnlyList<GitHubReleaseAsset> assets)
+    {
+        if (assets is null || assets.Count == 0 || !OperatingSystem.IsWindows())
+        {
+            return null;
+        }
+
+        var architectureToken = RuntimeInformation.OSArchitecture switch
+        {
+            Architecture.Arm64 => "arm64",
+            Architecture.X86 => "x86",
+            _ => "x64"
+        };
+
+        var ranked = assets
+            .Select(asset => (Asset: asset, Score: ScoreWindowsInstallerAsset(asset.Name, architectureToken)))
+            .OrderByDescending(x => x.Score)
+            .ToList();
+
+        return ranked.FirstOrDefault(x => x.Score > 0).Asset;
+    }
+
+    private static int ScoreWindowsInstallerAsset(string assetName, string architectureToken)
+    {
+        if (string.IsNullOrWhiteSpace(assetName))
+        {
+            return 0;
+        }
+
+        var score = 0;
+
+        if (assetName.EndsWith(".exe", StringComparison.OrdinalIgnoreCase))
+        {
+            score += 200;
+        }
+        else if (assetName.EndsWith(".msi", StringComparison.OrdinalIgnoreCase))
+        {
+            score += 160;
+        }
+        else
+        {
+            return 0;
+        }
+
+        if (assetName.Contains("setup", StringComparison.OrdinalIgnoreCase) ||
+            assetName.Contains("installer", StringComparison.OrdinalIgnoreCase))
+        {
+            score += 60;
+        }
+
+        if (assetName.Contains(architectureToken, StringComparison.OrdinalIgnoreCase))
+        {
+            score += 40;
+        }
+        else if (assetName.Contains("x64", StringComparison.OrdinalIgnoreCase) ||
+                 assetName.Contains("x86", StringComparison.OrdinalIgnoreCase) ||
+                 assetName.Contains("arm64", StringComparison.OrdinalIgnoreCase))
+        {
+            score -= 30;
+        }
+
+        if (assetName.Contains("portable", StringComparison.OrdinalIgnoreCase))
+        {
+            score -= 40;
+        }
+
+        return score;
+    }
+
+    private static bool TryParseVersion(string? value, out Version? version)
+    {
+        version = null;
+        if (string.IsNullOrWhiteSpace(value))
+        {
+            return false;
+        }
+
+        var normalized = value.Trim();
+        if (normalized.StartsWith("v", StringComparison.OrdinalIgnoreCase))
+        {
+            normalized = normalized[1..];
+        }
+
+        var separatorIndex = normalized.IndexOfAny(['-', '+', ' ']);
+        if (separatorIndex > 0)
+        {
+            normalized = normalized[..separatorIndex];
+        }
+
+        if (!Version.TryParse(normalized, out var parsed))
+        {
+            return false;
+        }
+
+        version = NormalizeVersion(parsed);
+        return true;
+    }
+
+    private static Version NormalizeVersion(Version version)
+    {
+        var major = Math.Max(0, version.Major);
+        var minor = Math.Max(0, version.Minor);
+        var build = Math.Max(0, version.Build);
+        return new Version(major, minor, build);
+    }
+
+    private static string Truncate(string value, int maxLength)
+    {
+        if (string.IsNullOrEmpty(value) || value.Length <= maxLength)
+        {
+            return value;
+        }
+
+        return value[..maxLength];
+    }
+}

LanMountainDesktop/Services/ICalculatorDataService.cs

@@ -0,0 +1,17 @@
+namespace LanMountainDesktop.Services;
+
+public interface ICalculatorDataService
+{
+    string ApplyInputToken(string currentInput, string token);
+
+    decimal ParseAmountOrZero(string? inputText);
+
+    string FormatAmount(decimal amount, int maxFractionDigits = 4);
+}
+
+public static class CalculatorInputTokens
+{
+    public const string Clear = "AC";
+    public const string Backspace = "BACK";
+    public const string DecimalPoint = ".";
+}

LanMountainDesktop/Services/IRecommendationDataService.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using System.Threading;
 using System.Threading.Tasks;
 using LanMountainDesktop.Models;
@@ -7,12 +8,50 @@ namespace LanMountainDesktop.Services;
 
 public sealed record DailyArtworkQuery(
     string? Locale = null,
+    string? MirrorSource = null,
     bool ForceRefresh = false);
 
 public sealed record DailyPoetryQuery(
     string? Locale = null,
     bool ForceRefresh = false);
 
+public sealed record DailyNewsQuery(
+    string? Locale = null,
+    int? ItemCount = null,
+    bool ForceRefresh = false);
+
+public sealed record IfengNewsQuery(
+    string? Locale = null,
+    int? ItemCount = null,
+    string? ChannelType = null,
+    bool ForceRefresh = false);
+
+public sealed record BilibiliHotSearchQuery(
+    string? Locale = null,
+    int? ItemCount = null,
+    bool ForceRefresh = false);
+
+public sealed record BaiduHotSearchQuery(
+    string? Locale = null,
+    int? ItemCount = null,
+    string? SourceType = null,
+    bool ForceRefresh = false);
+
+public sealed record DailyWordQuery(
+    string? Locale = null,
+    bool ForceRefresh = false);
+
+public sealed record Stcn24ForumPostsQuery(
+    string? Locale = null,
+    int? ItemCount = null,
+    string? SourceType = null,
+    bool ForceRefresh = false);
+
+public sealed record ExchangeRateQuery(
+    string? BaseCurrency = null,
+    string? TargetCurrency = null,
+    bool ForceRefresh = false);
+
 public sealed record RecommendationQueryResult<T>(
     bool Success,
     T? Data,
@@ -35,16 +74,217 @@ public sealed record RecommendationApiOptions
     public string JinriShiciPoetryUrl { get; init; } = "https://v1.jinrishici.com/all.json";
 
     public string ArtInstituteArtworkApiTemplate { get; init; } =
-        "https://api.artic.edu/api/v1/artworks?page={0}&limit={1}&fields=id,title,artist_title,artist_display,date_display,image_id,api_link";
+        "https://api.artic.edu/api/v1/artworks?page={0}&limit={1}&fields=id,title,artist_title,artist_display,date_display,image_id,api_link,thumbnail";
 
     public string ArtInstituteImageUrlTemplate { get; init; } =
         "https://www.artic.edu/iiif/2/{0}/full/843,/0/default.jpg";
 
+    public string DomesticArtworkApiUrl { get; init; } =
+        "https://cn.bing.com/HPImageArchive.aspx?format=js&idx=0&n=8&mkt=zh-CN";
+
+    public string DomesticArtworkHost { get; init; } = "https://cn.bing.com";
+
+    public string CnrDailyNewsListUrl { get; init; } = "https://www.cnr.cn/newscenter/native/gd/";
+
+    public IReadOnlyList<string> CnrDailyNewsRssFeedUrls { get; init; } =
+    [
+        "https://www.cnr.cn/rss.xml",
+        "https://news.cnr.cn/rss.xml",
+        "https://www.cnr.cn/newscenter/native/gd/rss.xml",
+        "https://news.cnr.cn/native/gd/rss.xml"
+    ];
+
+    public IReadOnlyList<string> IfengNewsComprehensiveRssFeedUrls { get; init; } =
+    [
+        "https://rss.injahow.cn/ifeng/news",
+        "https://rsshub.shuaizheng.org/ifeng/news"
+    ];
+
+    public IReadOnlyList<string> IfengNewsMainlandRssFeedUrls { get; init; } =
+    [
+        "https://rss.injahow.cn/ifeng/news/shanklist/3-35197-/",
+        "https://rsshub.shuaizheng.org/ifeng/news/shanklist/3-35197-/"
+    ];
+
+    public IReadOnlyList<string> IfengNewsTaiwanRssFeedUrls { get; init; } =
+    [
+        "https://rss.injahow.cn/ifeng/news/shanklist/3-35199-/",
+        "https://rsshub.shuaizheng.org/ifeng/news/shanklist/3-35199-/"
+    ];
+
+    public string IfengNewsComprehensiveListPageUrl { get; init; } = "https://news.ifeng.com/";
+
+    public string IfengNewsMainlandListPageUrl { get; init; } = "https://news.ifeng.com/shanklist/3-35197-/";
+
+    public string IfengNewsTaiwanListPageUrl { get; init; } = "https://news.ifeng.com/shanklist/3-35199-/";
+
+    public string BilibiliHotSearchApiTemplate { get; init; } =
+        "https://api.bilibili.com/x/web-interface/search/square?limit={0}";
+
+    public string BilibiliSearchDefaultApiUrl { get; init; } =
+        "https://api.bilibili.com/x/web-interface/search/default";
+
+    public string BilibiliSearchPageUrl { get; init; } = "https://search.bilibili.com/all";
+
+    public string BaiduHotSearchRssFeedUrl { get; init; } = "https://rss.aishort.top/?type=baidu";
+
+    public string BaiduHotSearchBoardUrl { get; init; } = "https://top.baidu.com/board?tab=realtime";
+
+    public string SmartTeachForumApiTemplate { get; init; } =
+        "https://forum.smart-teach.cn/api/discussions?filter[q]={0}&sort=-createdAt&page[limit]={1}&include=user";
+
+    public string SmartTeachForumBaseUrl { get; init; } = "https://forum.smart-teach.cn";
+
+    public string SmartTeachStcnKeyword { get; init; } = "STCN";
+
+    public string YoudaoDictionaryApiTemplate { get; init; } = "https://dict.youdao.com/jsonapi?q={0}";
+
+    public string YoudaoDictionaryWordPageTemplate { get; init; } = "https://dict.youdao.com/w/eng/{0}/";
+
+    public string ExchangeRateApiTemplate { get; init; } = "https://open.er-api.com/v6/latest/{0}";
+
+    public IReadOnlyList<string> YoudaoDailyWordCandidates { get; init; } =
+    [
+        "illustrate",
+        "resilient",
+        "meticulous",
+        "coherent",
+        "subtle",
+        "constrain",
+        "tangible",
+        "versatile",
+        "pragmatic",
+        "derive",
+        "intricate",
+        "notion",
+        "facilitate",
+        "sustain",
+        "clarify",
+        "convey",
+        "nuance",
+        "transform",
+        "navigate",
+        "align",
+        "elevate",
+        "refine",
+        "vivid",
+        "compile",
+        "inspect",
+        "aggregate",
+        "optimize",
+        "resonate",
+        "persist",
+        "adapt",
+        "emerge",
+        "concrete",
+        "articulate",
+        "validate",
+        "insight",
+        "concise",
+        "robust",
+        "reliable",
+        "spectrum",
+        "landscape",
+        "context",
+        "constraint",
+        "iterative",
+        "foundation",
+        "priority",
+        "workflow",
+        "synthesize",
+        "anchor",
+        "precision",
+        "momentum",
+        "integrate",
+        "observe",
+        "structure",
+        "essence",
+        "framework",
+        "drift",
+        "discern",
+        "compose",
+        "modulate",
+        "stability",
+        "trajectory",
+        "analyze",
+        "diagnose",
+        "mitigate",
+        "transparent",
+        "progressive",
+        "boundary",
+        "allocate",
+        "evaluate",
+        "reconcile",
+        "strategic",
+        "holistic",
+        "incremental",
+        "temporal",
+        "semantic",
+        "parallel",
+        "explicit",
+        "objective",
+        "capacity",
+        "durable",
+        "scalable",
+        "residual",
+        "verify",
+        "discover",
+        "curate",
+        "invoke",
+        "artistry",
+        "sincere",
+        "substantive",
+        "deliberate",
+        "dynamic",
+        "intentional",
+        "initiative",
+        "evidence",
+        "infuse",
+        "harmony",
+        "vitality",
+        "polish",
+        "portrait",
+        "rhythm",
+        "accent",
+        "gradient",
+        "palette",
+        "pattern",
+        "eclipse",
+        "horizon",
+        "luminous",
+        "serene",
+        "vantage",
+        "kinetic",
+        "refactor",
+        "calibrate",
+        "orchestrate",
+        "prototype",
+        "curiosity",
+        "discipline",
+        "inscribe",
+        "engage",
+        "spark",
+        "zenith",
+        "clarity",
+        "resolve",
+        "aptitude"
+    ];
+
     public TimeSpan CacheDuration { get; init; } = TimeSpan.FromMinutes(20);
 
     public TimeSpan RequestTimeout { get; init; } = TimeSpan.FromSeconds(8);
 
     public int DefaultArtworkCandidateCount { get; init; } = 50;
+
+    public int DefaultDailyNewsCount { get; init; } = 2;
+
+    public int DefaultIfengNewsCount { get; init; } = 4;
+
+    public int DefaultBilibiliHotSearchCount { get; init; } = 5;
+
+    public int DefaultBaiduHotSearchCount { get; init; } = 4;
+
+    public int DefaultStcn24ForumPostCount { get; init; } = 4;
 }
 
 public interface IRecommendationInfoService
@@ -57,5 +297,33 @@ public interface IRecommendationInfoService
         DailyPoetryQuery query,
         CancellationToken cancellationToken = default);
 
+    Task<RecommendationQueryResult<DailyNewsSnapshot>> GetDailyNewsAsync(
+        DailyNewsQuery query,
+        CancellationToken cancellationToken = default);
+
+    Task<RecommendationQueryResult<DailyNewsSnapshot>> GetIfengNewsAsync(
+        IfengNewsQuery query,
+        CancellationToken cancellationToken = default);
+
+    Task<RecommendationQueryResult<BilibiliHotSearchSnapshot>> GetBilibiliHotSearchAsync(
+        BilibiliHotSearchQuery query,
+        CancellationToken cancellationToken = default);
+
+    Task<RecommendationQueryResult<BaiduHotSearchSnapshot>> GetBaiduHotSearchAsync(
+        BaiduHotSearchQuery query,
+        CancellationToken cancellationToken = default);
+
+    Task<RecommendationQueryResult<DailyWordSnapshot>> GetDailyWordAsync(
+        DailyWordQuery query,
+        CancellationToken cancellationToken = default);
+
+    Task<RecommendationQueryResult<Stcn24ForumPostsSnapshot>> GetStcn24ForumPostsAsync(
+        Stcn24ForumPostsQuery query,
+        CancellationToken cancellationToken = default);
+
+    Task<RecommendationQueryResult<ExchangeRateSnapshot>> GetExchangeRateAsync(
+        ExchangeRateQuery query,
+        CancellationToken cancellationToken = default);
+
     void ClearCache();
 }

LanMountainDesktop/Services/LinuxDesktopEntryInstaller.cs

@@ -0,0 +1,192 @@
+using System;
+using System.Diagnostics;
+using System.IO;
+using System.Text;
+
+namespace LanMountainDesktop.Services;
+
+internal static class LinuxDesktopEntryInstaller
+{
+    private const string DesktopFileName = "LanMountainDesktop.desktop";
+    private const string IconFileName = "lanmountaindesktop.png";
+    private const string IconName = "lanmountaindesktop";
+
+    public static void EnsureInstalled()
+    {
+        if (!OperatingSystem.IsLinux())
+        {
+            return;
+        }
+
+        try
+        {
+            var executablePath = ResolveExecutablePath();
+            if (string.IsNullOrWhiteSpace(executablePath))
+            {
+                return;
+            }
+
+            var dataHome = ResolveDataHome();
+            if (string.IsNullOrWhiteSpace(dataHome))
+            {
+                return;
+            }
+
+            var applicationsDir = Path.Combine(dataHome, "applications");
+            var iconDir = Path.Combine(dataHome, "icons", "hicolor", "256x256", "apps");
+
+            Directory.CreateDirectory(applicationsDir);
+            Directory.CreateDirectory(iconDir);
+
+            var desktopTargetPath = Path.Combine(applicationsDir, DesktopFileName);
+            var iconTargetPath = Path.Combine(iconDir, IconFileName);
+
+            TryCopyBundledIcon(iconTargetPath);
+
+            var desktopEntryContent = BuildDesktopEntryContent(executablePath);
+            WriteFileIfChanged(desktopTargetPath, desktopEntryContent);
+
+            TryRunCommand("chmod", "+x", executablePath);
+            TryRunCommand("chmod", "+x", desktopTargetPath);
+            TryRunCommand("update-desktop-database", applicationsDir);
+            TryRunCommand("gtk-update-icon-cache", Path.Combine(dataHome, "icons", "hicolor"));
+        }
+        catch
+        {
+            // Keep startup resilient if desktop integration fails.
+        }
+    }
+
+    private static string ResolveExecutablePath()
+    {
+        var processPath = Environment.ProcessPath;
+        if (!string.IsNullOrWhiteSpace(processPath))
+        {
+            return processPath;
+        }
+
+        var commandLineArgs = Environment.GetCommandLineArgs();
+        if (commandLineArgs.Length > 0 && !string.IsNullOrWhiteSpace(commandLineArgs[0]))
+        {
+            return commandLineArgs[0];
+        }
+
+        return string.Empty;
+    }
+
+    private static string ResolveDataHome()
+    {
+        var dataHome = Environment.GetEnvironmentVariable("XDG_DATA_HOME");
+        if (!string.IsNullOrWhiteSpace(dataHome))
+        {
+            return dataHome.Trim();
+        }
+
+        var homePath = Environment.GetFolderPath(Environment.SpecialFolder.UserProfile);
+        if (string.IsNullOrWhiteSpace(homePath))
+        {
+            return string.Empty;
+        }
+
+        return Path.Combine(homePath, ".local", "share");
+    }
+
+    private static void TryCopyBundledIcon(string iconTargetPath)
+    {
+        foreach (var candidatePath in EnumerateIconSourceCandidates())
+        {
+            try
+            {
+                if (!File.Exists(candidatePath))
+                {
+                    continue;
+                }
+
+                File.Copy(candidatePath, iconTargetPath, overwrite: true);
+                return;
+            }
+            catch
+            {
+                // Ignore failures and continue trying fallbacks.
+            }
+        }
+    }
+
+    private static string[] EnumerateIconSourceCandidates()
+    {
+        var baseDirectory = AppContext.BaseDirectory;
+        return
+        [
+            Path.Combine(baseDirectory, "share", "icons", "hicolor", "256x256", "apps", IconFileName),
+            Path.Combine(baseDirectory, IconFileName)
+        ];
+    }
+
+    private static string BuildDesktopEntryContent(string executablePath)
+    {
+        var escapedExecutablePath = executablePath.Replace("\"", "\\\"", StringComparison.Ordinal);
+        return
+            "[Desktop Entry]\n" +
+            "Type=Application\n" +
+            "Version=1.0\n" +
+            "Name=LanMountainDesktop\n" +
+            "Comment=LanMountainDesktop desktop shell\n" +
+            $"Exec=\"{escapedExecutablePath}\" %U\n" +
+            $"Icon={IconName}\n" +
+            "Terminal=false\n" +
+            "Categories=Utility;Education;\n" +
+            "StartupWMClass=LanMountainDesktop\n";
+    }
+
+    private static void WriteFileIfChanged(string filePath, string content)
+    {
+        try
+        {
+            if (File.Exists(filePath))
+            {
+                var existing = File.ReadAllText(filePath);
+                if (string.Equals(existing, content, StringComparison.Ordinal))
+                {
+                    return;
+                }
+            }
+        }
+        catch
+        {
+            // Fall through to attempt writing the content.
+        }
+
+        File.WriteAllText(filePath, content, new UTF8Encoding(encoderShouldEmitUTF8Identifier: false));
+    }
+
+    private static void TryRunCommand(string fileName, params string[] arguments)
+    {
+        try
+        {
+            var startInfo = new ProcessStartInfo
+            {
+                FileName = fileName,
+                UseShellExecute = false,
+                RedirectStandardError = true,
+                RedirectStandardOutput = true
+            };
+
+            foreach (var argument in arguments)
+            {
+                startInfo.ArgumentList.Add(argument);
+            }
+
+            using var process = Process.Start(startInfo);
+            if (process is null)
+            {
+                return;
+            }
+
+            _ = process.WaitForExit(2_500);
+        }
+        catch
+        {
+            // Ignore missing command or update failures.
+        }
+    }
+}

LanMountainDesktop/Services/LinuxDesktopEntryService.cs

@@ -0,0 +1,371 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Text.RegularExpressions;
+using LanMountainDesktop.Models;
+
+namespace LanMountainDesktop.Services;
+
+public sealed class LinuxDesktopEntryService
+{
+    private static readonly Regex FieldCodeRegex =
+        new(@"%[fFuUdDnNickvm]", RegexOptions.Compiled);
+
+    public StartMenuFolderNode Load()
+    {
+        var root = new StartMenuFolderNode("All Apps", string.Empty);
+        if (!OperatingSystem.IsLinux())
+        {
+            return root;
+        }
+
+        var seenDesktopIds = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
+        foreach (var applicationsRoot in EnumerateApplicationsRoots())
+        {
+            foreach (var desktopFilePath in EnumerateDesktopFilesSafe(applicationsRoot))
+            {
+                if (!TryParseDesktopEntry(desktopFilePath, applicationsRoot, out var appEntry))
+                {
+                    continue;
+                }
+
+                if (seenDesktopIds.Add(appEntry.RelativePath))
+                {
+                    root.Apps.Add(appEntry);
+                }
+            }
+        }
+
+        root.Apps.Sort((left, right) =>
+            string.Compare(left.DisplayName, right.DisplayName, CultureInfo.CurrentCulture, CompareOptions.IgnoreCase));
+        return root;
+    }
+
+    private static IEnumerable<string> EnumerateApplicationsRoots()
+    {
+        var homeDirectory = Environment.GetFolderPath(Environment.SpecialFolder.UserProfile);
+        var dataHome = Environment.GetEnvironmentVariable("XDG_DATA_HOME");
+        if (string.IsNullOrWhiteSpace(dataHome) && !string.IsNullOrWhiteSpace(homeDirectory))
+        {
+            dataHome = Path.Combine(homeDirectory, ".local", "share");
+        }
+
+        var dataDirs = (Environment.GetEnvironmentVariable("XDG_DATA_DIRS") ?? "/usr/local/share:/usr/share")
+            .Split(':', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
+
+        var candidates = new List<string>();
+        if (!string.IsNullOrWhiteSpace(dataHome))
+        {
+            candidates.Add(Path.Combine(dataHome, "applications"));
+        }
+
+        foreach (var dataDir in dataDirs)
+        {
+            candidates.Add(Path.Combine(dataDir, "applications"));
+        }
+
+        if (!string.IsNullOrWhiteSpace(homeDirectory))
+        {
+            candidates.Add(Path.Combine(homeDirectory, ".local", "share", "flatpak", "exports", "share", "applications"));
+        }
+
+        candidates.Add("/var/lib/flatpak/exports/share/applications");
+        candidates.Add("/var/lib/snapd/desktop/applications");
+
+        return candidates
+            .Where(path => !string.IsNullOrWhiteSpace(path) && Directory.Exists(path))
+            .Distinct(StringComparer.OrdinalIgnoreCase);
+    }
+
+    private static IEnumerable<string> EnumerateDesktopFilesSafe(string applicationsRoot)
+    {
+        try
+        {
+            return Directory.EnumerateFiles(applicationsRoot, "*.desktop", SearchOption.AllDirectories);
+        }
+        catch
+        {
+            return Array.Empty<string>();
+        }
+    }
+
+    private static bool TryParseDesktopEntry(string desktopFilePath, string applicationsRoot, out StartMenuAppEntry appEntry)
+    {
+        appEntry = null!;
+
+        Dictionary<string, string> fields;
+        try
+        {
+            fields = ReadDesktopEntryFields(desktopFilePath);
+        }
+        catch
+        {
+            return false;
+        }
+
+        if (!fields.TryGetValue("Type", out var entryType) ||
+            !string.Equals(entryType, "Application", StringComparison.OrdinalIgnoreCase) ||
+            GetBooleanField(fields, "NoDisplay") ||
+            GetBooleanField(fields, "Hidden"))
+        {
+            return false;
+        }
+
+        var displayName = GetPreferredName(fields);
+        if (string.IsNullOrWhiteSpace(displayName))
+        {
+            return false;
+        }
+
+        if (!fields.TryGetValue("Exec", out var execValue) ||
+            !TryParseExec(execValue, out var launchExecutable, out var launchArguments))
+        {
+            return false;
+        }
+
+        if (fields.TryGetValue("TryExec", out var tryExecValue) &&
+            !string.IsNullOrWhiteSpace(tryExecValue) &&
+            !CommandExists(tryExecValue))
+        {
+            return false;
+        }
+
+        var desktopFileId = BuildDesktopFileId(desktopFilePath, applicationsRoot);
+        var iconValue = fields.TryGetValue("Icon", out var iconFieldValue)
+            ? iconFieldValue
+            : string.Empty;
+        var workingDirectory = Path.IsPathRooted(launchExecutable)
+            ? Path.GetDirectoryName(launchExecutable)
+            : null;
+
+        appEntry = new StartMenuAppEntry
+        {
+            DisplayName = displayName.Trim(),
+            FilePath = desktopFilePath,
+            RelativePath = desktopFileId,
+            IconPngBytes = LinuxIconService.TryGetIconPngBytes(iconValue, Path.GetDirectoryName(desktopFilePath)),
+            LaunchExecutable = launchExecutable,
+            LaunchArguments = launchArguments,
+            WorkingDirectory = string.IsNullOrWhiteSpace(workingDirectory) ? null : workingDirectory
+        };
+        return true;
+    }
+
+    private static Dictionary<string, string> ReadDesktopEntryFields(string desktopFilePath)
+    {
+        var fields = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
+        var inDesktopEntrySection = false;
+        foreach (var rawLine in File.ReadLines(desktopFilePath))
+        {
+            var line = rawLine.Trim();
+            if (string.IsNullOrWhiteSpace(line) || line.StartsWith('#'))
+            {
+                continue;
+            }
+
+            if (line.StartsWith('[') && line.EndsWith(']'))
+            {
+                inDesktopEntrySection = string.Equals(line, "[Desktop Entry]", StringComparison.OrdinalIgnoreCase);
+                continue;
+            }
+
+            if (!inDesktopEntrySection)
+            {
+                continue;
+            }
+
+            var separatorIndex = line.IndexOf('=');
+            if (separatorIndex <= 0 || separatorIndex >= line.Length - 1)
+            {
+                continue;
+            }
+
+            var key = line[..separatorIndex].Trim();
+            var value = line[(separatorIndex + 1)..].Trim();
+            fields[key] = value;
+        }
+
+        return fields;
+    }
+
+    private static bool GetBooleanField(IReadOnlyDictionary<string, string> fields, string key)
+    {
+        return fields.TryGetValue(key, out var value) &&
+               bool.TryParse(value, out var result) &&
+               result;
+    }
+
+    private static string GetPreferredName(IReadOnlyDictionary<string, string> fields)
+    {
+        if (TryGetLocalizedField(fields, "Name", out var localizedName))
+        {
+            return localizedName;
+        }
+
+        return fields.TryGetValue("Name", out var fallbackName)
+            ? fallbackName
+            : string.Empty;
+    }
+
+    private static bool TryGetLocalizedField(IReadOnlyDictionary<string, string> fields, string baseKey, out string value)
+    {
+        value = string.Empty;
+        var uiCulture = CultureInfo.CurrentUICulture;
+        var candidates = new[]
+        {
+            $"{baseKey}[{uiCulture.Name}]",
+            $"{baseKey}[{uiCulture.TwoLetterISOLanguageName}]"
+        };
+
+        foreach (var key in candidates)
+        {
+            if (fields.TryGetValue(key, out var localizedValue) &&
+                !string.IsNullOrWhiteSpace(localizedValue))
+            {
+                value = localizedValue;
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    private static string BuildDesktopFileId(string desktopFilePath, string applicationsRoot)
+    {
+        var relativePath = Path.GetRelativePath(applicationsRoot, desktopFilePath)
+            .Replace(Path.DirectorySeparatorChar, '-')
+            .Replace(Path.AltDirectorySeparatorChar, '-');
+
+        return relativePath.Trim();
+    }
+
+    private static bool TryParseExec(string execValue, out string launchExecutable, out List<string> launchArguments)
+    {
+        launchExecutable = string.Empty;
+        launchArguments = [];
+
+        var tokens = TokenizeExec(execValue);
+        if (tokens.Count == 0)
+        {
+            return false;
+        }
+
+        var cleanedTokens = new List<string>(tokens.Count);
+        foreach (var token in tokens)
+        {
+            if (string.IsNullOrWhiteSpace(token))
+            {
+                continue;
+            }
+
+            var normalizedToken = token.Replace("%%", "%", StringComparison.Ordinal);
+            if (normalizedToken.Length == 2 && normalizedToken[0] == '%')
+            {
+                continue;
+            }
+
+            normalizedToken = FieldCodeRegex.Replace(normalizedToken, string.Empty).Trim();
+            if (string.IsNullOrWhiteSpace(normalizedToken))
+            {
+                continue;
+            }
+
+            cleanedTokens.Add(normalizedToken);
+        }
+
+        if (cleanedTokens.Count == 0)
+        {
+            return false;
+        }
+
+        launchExecutable = cleanedTokens[0];
+        launchArguments = cleanedTokens.Skip(1).ToList();
+        return true;
+    }
+
+    private static List<string> TokenizeExec(string execValue)
+    {
+        var tokens = new List<string>();
+        var current = new StringBuilder();
+        var inQuotes = false;
+        char quoteChar = '\0';
+
+        foreach (var c in execValue)
+        {
+            if ((c == '"' || c == '\'') &&
+                (!inQuotes || quoteChar == c))
+            {
+                if (inQuotes)
+                {
+                    inQuotes = false;
+                    quoteChar = '\0';
+                }
+                else
+                {
+                    inQuotes = true;
+                    quoteChar = c;
+                }
+
+                continue;
+            }
+
+            if (char.IsWhiteSpace(c) && !inQuotes)
+            {
+                if (current.Length > 0)
+                {
+                    tokens.Add(current.ToString());
+                    current.Clear();
+                }
+
+                continue;
+            }
+
+            current.Append(c);
+        }
+
+        if (current.Length > 0)
+        {
+            tokens.Add(current.ToString());
+        }
+
+        return tokens;
+    }
+
+    private static bool CommandExists(string command)
+    {
+        var trimmedCommand = command.Trim();
+        if (string.IsNullOrWhiteSpace(trimmedCommand))
+        {
+            return false;
+        }
+
+        if (Path.IsPathRooted(trimmedCommand))
+        {
+            return File.Exists(trimmedCommand);
+        }
+
+        var pathEntries = (Environment.GetEnvironmentVariable("PATH") ?? string.Empty)
+            .Split(Path.PathSeparator, StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
+
+        foreach (var pathEntry in pathEntries)
+        {
+            try
+            {
+                var candidate = Path.Combine(pathEntry, trimmedCommand);
+                if (File.Exists(candidate))
+                {
+                    return true;
+                }
+            }
+            catch
+            {
+                // Ignore malformed PATH entries.
+            }
+        }
+
+        return false;
+    }
+}

LanMountainDesktop/Services/LinuxIconService.cs

@@ -0,0 +1,214 @@
+using System;
+using System.Collections.Concurrent;
+using System.Collections.Generic;
+using System.Globalization;
+using System.IO;
+using System.Linq;
+using System.Text.RegularExpressions;
+
+namespace LanMountainDesktop.Services;
+
+internal static class LinuxIconService
+{
+    private static readonly string[] SupportedRasterExtensions =
+    [
+        ".png",
+        ".ico"
+    ];
+
+    private static readonly Regex SizeDirectoryRegex =
+        new(@"(?<size>\d{1,4})x\d{1,4}", RegexOptions.IgnoreCase | RegexOptions.Compiled);
+
+    private static readonly ConcurrentDictionary<string, string?> IconPathCache = new(StringComparer.OrdinalIgnoreCase);
+
+    public static byte[]? TryGetIconPngBytes(string? iconKey, string? desktopFileDirectory = null)
+    {
+        if (!OperatingSystem.IsLinux() || string.IsNullOrWhiteSpace(iconKey))
+        {
+            return null;
+        }
+
+        foreach (var candidatePath in ResolveIconCandidates(iconKey.Trim(), desktopFileDirectory))
+        {
+            if (TryReadIconBytes(candidatePath, out var bytes))
+            {
+                return bytes;
+            }
+        }
+
+        return null;
+    }
+
+    private static IEnumerable<string> ResolveIconCandidates(string iconKey, string? desktopFileDirectory)
+    {
+        if (Path.HasExtension(iconKey))
+        {
+            var directPath = ExpandHome(iconKey);
+            if (Path.IsPathRooted(directPath))
+            {
+                yield return directPath;
+            }
+            else if (!string.IsNullOrWhiteSpace(desktopFileDirectory))
+            {
+                yield return Path.GetFullPath(Path.Combine(desktopFileDirectory, directPath));
+            }
+
+            yield break;
+        }
+
+        var resolvedThemePath = ResolveThemedIconPath(iconKey);
+        if (!string.IsNullOrWhiteSpace(resolvedThemePath))
+        {
+            yield return resolvedThemePath;
+        }
+    }
+
+    private static string? ResolveThemedIconPath(string iconName)
+    {
+        return IconPathCache.GetOrAdd(iconName, static key => FindBestMatchingIconPath(key));
+    }
+
+    private static string? FindBestMatchingIconPath(string iconName)
+    {
+        var candidates = new List<(string Path, int Score)>();
+        foreach (var iconRoot in EnumerateIconRoots())
+        {
+            foreach (var extension in SupportedRasterExtensions)
+            {
+                foreach (var candidatePath in EnumerateFilesSafe(iconRoot, iconName + extension))
+                {
+                    candidates.Add((candidatePath, ScoreIconPath(candidatePath)));
+                }
+            }
+        }
+
+        return candidates
+            .OrderByDescending(candidate => candidate.Score)
+            .ThenBy(candidate => candidate.Path.Length)
+            .Select(candidate => candidate.Path)
+            .FirstOrDefault();
+    }
+
+    private static IEnumerable<string> EnumerateIconRoots()
+    {
+        var homeDirectory = Environment.GetFolderPath(Environment.SpecialFolder.UserProfile);
+        var dataHome = Environment.GetEnvironmentVariable("XDG_DATA_HOME");
+        if (string.IsNullOrWhiteSpace(dataHome) && !string.IsNullOrWhiteSpace(homeDirectory))
+        {
+            dataHome = Path.Combine(homeDirectory, ".local", "share");
+        }
+
+        var dataDirs = (Environment.GetEnvironmentVariable("XDG_DATA_DIRS") ?? "/usr/local/share:/usr/share")
+            .Split(':', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
+
+        var candidates = new List<string>();
+        if (!string.IsNullOrWhiteSpace(dataHome))
+        {
+            candidates.Add(Path.Combine(dataHome, "icons"));
+            candidates.Add(Path.Combine(dataHome, "pixmaps"));
+        }
+
+        foreach (var dataDir in dataDirs)
+        {
+            candidates.Add(Path.Combine(dataDir, "icons"));
+            candidates.Add(Path.Combine(dataDir, "pixmaps"));
+        }
+
+        if (!string.IsNullOrWhiteSpace(homeDirectory))
+        {
+            candidates.Add(Path.Combine(homeDirectory, ".icons"));
+            candidates.Add(Path.Combine(homeDirectory, ".local", "share", "flatpak", "exports", "share", "icons"));
+        }
+
+        candidates.Add("/var/lib/flatpak/exports/share/icons");
+        candidates.Add("/var/lib/snapd/desktop/icons");
+
+        return candidates
+            .Where(path => !string.IsNullOrWhiteSpace(path) && Directory.Exists(path))
+            .Distinct(StringComparer.OrdinalIgnoreCase);
+    }
+
+    private static IEnumerable<string> EnumerateFilesSafe(string rootPath, string fileName)
+    {
+        try
+        {
+            return Directory.EnumerateFiles(rootPath, fileName, SearchOption.AllDirectories);
+        }
+        catch
+        {
+            return Array.Empty<string>();
+        }
+    }
+
+    private static bool TryReadIconBytes(string filePath, out byte[] bytes)
+    {
+        bytes = [];
+        try
+        {
+            var extension = Path.GetExtension(filePath);
+            if (!SupportedRasterExtensions.Contains(extension, StringComparer.OrdinalIgnoreCase) ||
+                !File.Exists(filePath))
+            {
+                return false;
+            }
+
+            bytes = File.ReadAllBytes(filePath);
+            return bytes.Length > 0;
+        }
+        catch
+        {
+            return false;
+        }
+    }
+
+    private static int ScoreIconPath(string filePath)
+    {
+        var score = 0;
+        var extension = Path.GetExtension(filePath);
+        if (extension.Equals(".png", StringComparison.OrdinalIgnoreCase))
+        {
+            score += 4_000;
+        }
+        else if (extension.Equals(".ico", StringComparison.OrdinalIgnoreCase))
+        {
+            score += 2_000;
+        }
+
+        if (filePath.Contains($"{Path.DirectorySeparatorChar}hicolor{Path.DirectorySeparatorChar}", StringComparison.OrdinalIgnoreCase))
+        {
+            score += 8_000;
+        }
+
+        if (filePath.Contains($"{Path.DirectorySeparatorChar}apps{Path.DirectorySeparatorChar}", StringComparison.OrdinalIgnoreCase))
+        {
+            score += 1_000;
+        }
+
+        var match = SizeDirectoryRegex.Match(filePath);
+        if (match.Success &&
+            int.TryParse(match.Groups["size"].Value, NumberStyles.Integer, CultureInfo.InvariantCulture, out var size))
+        {
+            score += Math.Min(size, 512);
+        }
+
+        return score;
+    }
+
+    private static string ExpandHome(string path)
+    {
+        if (!path.StartsWith("~", StringComparison.Ordinal))
+        {
+            return path;
+        }
+
+        var homeDirectory = Environment.GetFolderPath(Environment.SpecialFolder.UserProfile);
+        if (string.IsNullOrWhiteSpace(homeDirectory))
+        {
+            return path;
+        }
+
+        return path.Length == 1
+            ? homeDirectory
+            : Path.Combine(homeDirectory, path[2..]);
+    }
+}

LanMountainDesktop/Services/LocalizationService.cs

@@ -46,6 +46,8 @@ public sealed class LocalizationService
             if (File.Exists(filePath))
             {
                 var json = File.ReadAllText(filePath);
+                // Defensive: tolerate accidentally duplicated UTF-8 BOM characters at file start.
+                json = json.TrimStart('\uFEFF');
                 var data = JsonSerializer.Deserialize<Dictionary<string, string>>(json, JsonOptions);
                 if (data is not null)
                 {
@@ -62,4 +64,3 @@ public sealed class LocalizationService
         return result;
     }
 }
-

LanMountainDesktop/Services/WebView2RuntimeProbe.cs

@@ -0,0 +1,126 @@
+using System;
+using System.IO;
+using System.Reflection;
+using System.Runtime.Versioning;
+using Microsoft.Win32;
+
+namespace LanMountainDesktop.Services;
+
+public sealed record WebView2RuntimeAvailability(
+    bool IsAvailable,
+    string? Version,
+    string Message);
+
+public static class WebView2RuntimeProbe
+{
+    private const string WebView2RuntimeClientId = "{F3017226-FE2A-4295-8BDF-00C3A9A7E4C5}";
+    private const string WebView2RuntimeKeyPath = @"SOFTWARE\Microsoft\EdgeUpdate\Clients\" + WebView2RuntimeClientId;
+    public const string RuntimeDownloadUrl = "https://go.microsoft.com/fwlink/p/?LinkId=2124703";
+
+    public static WebView2RuntimeAvailability GetAvailability()
+    {
+        if (!OperatingSystem.IsWindows())
+        {
+            return new WebView2RuntimeAvailability(
+                IsAvailable: true,
+                Version: null,
+                Message: string.Empty);
+        }
+
+        try
+        {
+            var version = TryGetVersionFromWebView2Api();
+            if (string.IsNullOrWhiteSpace(version))
+            {
+                version = TryGetVersionFromRegistry();
+            }
+
+            if (!string.IsNullOrWhiteSpace(version))
+            {
+                return new WebView2RuntimeAvailability(
+                    IsAvailable: true,
+                    Version: version.Trim(),
+                    Message: string.Empty);
+            }
+
+            return new WebView2RuntimeAvailability(
+                IsAvailable: false,
+                Version: null,
+                Message: $"WebView2 Runtime is missing. Install it from {RuntimeDownloadUrl} and restart the app.");
+        }
+        catch (Exception ex)
+        {
+            return new WebView2RuntimeAvailability(
+                IsAvailable: false,
+                Version: null,
+                Message: $"WebView2 runtime check failed: {ex.Message}");
+        }
+    }
+
+    public static string ResolveUserDataFolder()
+    {
+        var localAppData = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
+        if (string.IsNullOrWhiteSpace(localAppData))
+        {
+            localAppData = AppContext.BaseDirectory;
+        }
+
+        var userDataFolder = Path.Combine(localAppData, "LanMountainDesktop", "WebView2");
+        Directory.CreateDirectory(userDataFolder);
+        return userDataFolder;
+    }
+
+    private static string? TryGetVersionFromWebView2Api()
+    {
+        var type = Type.GetType(
+            "Microsoft.Web.WebView2.Core.CoreWebView2Environment, Microsoft.Web.WebView2.Core",
+            throwOnError: false);
+        if (type is null)
+        {
+            return null;
+        }
+
+        var method = type.GetMethod(
+            "GetAvailableBrowserVersionString",
+            BindingFlags.Public | BindingFlags.Static,
+            binder: null,
+            types: Type.EmptyTypes,
+            modifiers: null);
+        if (method is null)
+        {
+            return null;
+        }
+
+        return method.Invoke(null, null) as string;
+    }
+
+    [SupportedOSPlatform("windows")]
+    private static string? TryGetVersionFromRegistry()
+    {
+        return TryReadVersionFromRegistry(RegistryHive.LocalMachine, RegistryView.Registry64)
+               ?? TryReadVersionFromRegistry(RegistryHive.LocalMachine, RegistryView.Registry32)
+               ?? TryReadVersionFromRegistry(RegistryHive.CurrentUser, RegistryView.Registry64)
+               ?? TryReadVersionFromRegistry(RegistryHive.CurrentUser, RegistryView.Registry32);
+    }
+
+    [SupportedOSPlatform("windows")]
+    private static string? TryReadVersionFromRegistry(RegistryHive hive, RegistryView view)
+    {
+        try
+        {
+            using var baseKey = RegistryKey.OpenBaseKey(hive, view);
+            using var runtimeKey = baseKey.OpenSubKey(WebView2RuntimeKeyPath, writable: false);
+            if (runtimeKey is null)
+            {
+                return null;
+            }
+
+            var value = runtimeKey.GetValue("pv") as string;
+            return string.IsNullOrWhiteSpace(value) ? null : value.Trim();
+        }
+        catch
+        {
+            return null;
+        }
+    }
+}

LanMountainDesktop/Services/WindowsStartupService.cs

@@ -0,0 +1,75 @@
+using System;
+using Microsoft.Win32;
+
+namespace LanMountainDesktop.Services;
+
+public sealed class WindowsStartupService
+{
+    private const string RunKeyPath = @"Software\Microsoft\Windows\CurrentVersion\Run";
+    private const string ValueName = "LanMountainDesktop";
+    private readonly string _startupCommand;
+
+    public WindowsStartupService()
+    {
+        var processPath = Environment.ProcessPath;
+        _startupCommand = string.IsNullOrWhiteSpace(processPath)
+            ? string.Empty
+            : $"\"{processPath}\"";
+    }
+
+    public bool IsEnabled()
+    {
+        if (!OperatingSystem.IsWindows())
+        {
+            return false;
+        }
+
+        try
+        {
+            using var runKey = Registry.CurrentUser.OpenSubKey(RunKeyPath, writable: false);
+            return runKey?.GetValue(ValueName) is string value &&
+                   !string.IsNullOrWhiteSpace(value);
+        }
+        catch
+        {
+            return false;
+        }
+    }
+
+    public bool SetEnabled(bool enabled)
+    {
+        if (!OperatingSystem.IsWindows())
+        {
+            return false;
+        }
+
+        if (enabled && string.IsNullOrWhiteSpace(_startupCommand))
+        {
+            return false;
+        }
+
+        try
+        {
+            using var runKey = Registry.CurrentUser.CreateSubKey(RunKeyPath);
+            if (runKey is null)
+            {
+                return false;
+            }
+
+            if (enabled)
+            {
+                runKey.SetValue(ValueName, _startupCommand, RegistryValueKind.String);
+            }
+            else
+            {
+                runKey.DeleteValue(ValueName, throwOnMissingValue: false);
+            }
+
+            return IsEnabled() == enabled;
+        }
+        catch
+        {
+            return false;
+        }
+    }
+}

LanMountainDesktop/Services/WorldClockTimeZoneCatalog.cs

@@ -0,0 +1,187 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace LanMountainDesktop.Services;
+
+public static class WorldClockTimeZoneCatalog
+{
+    public const int ClockCount = 4;
+
+    private static readonly string[][] DefaultTimeZoneCandidates =
+    [
+        ["China Standard Time", "Asia/Shanghai"],
+        ["GMT Standard Time", "Europe/London", "UTC"],
+        ["AUS Eastern Standard Time", "Australia/Sydney"],
+        ["Eastern Standard Time", "America/New_York"]
+    ];
+
+    private static readonly Dictionary<string, string[]> CrossPlatformAliases =
+        new(StringComparer.OrdinalIgnoreCase)
+        {
+            ["China Standard Time"] = ["Asia/Shanghai"],
+            ["Asia/Shanghai"] = ["China Standard Time"],
+            ["GMT Standard Time"] = ["Europe/London", "UTC"],
+            ["Europe/London"] = ["GMT Standard Time", "UTC"],
+            ["AUS Eastern Standard Time"] = ["Australia/Sydney"],
+            ["Australia/Sydney"] = ["AUS Eastern Standard Time"],
+            ["Eastern Standard Time"] = ["America/New_York"],
+            ["America/New_York"] = ["Eastern Standard Time"],
+            ["UTC"] = ["Etc/UTC"],
+            ["Etc/UTC"] = ["UTC"],
+            ["Tokyo Standard Time"] = ["Asia/Tokyo"],
+            ["Asia/Tokyo"] = ["Tokyo Standard Time"]
+        };
+
+    public static IReadOnlyList<string> NormalizeTimeZoneIds(IEnumerable<string>? configuredIds)
+    {
+        var available = TimeZoneInfo.GetSystemTimeZones();
+        return NormalizeTimeZoneIds(configuredIds, available);
+    }
+
+    public static IReadOnlyList<string> NormalizeTimeZoneIds(
+        IEnumerable<string>? configuredIds,
+        IReadOnlyList<TimeZoneInfo> availableTimeZones)
+    {
+        var availableById = BuildAvailableTimeZoneLookup(availableTimeZones);
+        var requested = configuredIds?
+            .Where(id => !string.IsNullOrWhiteSpace(id))
+            .Select(id => id.Trim())
+            .ToList() ?? [];
+
+        var normalized = new List<string>(ClockCount);
+        for (var index = 0; index < ClockCount; index++)
+        {
+            var requestedId = index < requested.Count ? requested[index] : null;
+            var resolved = ResolveAvailableId(requestedId, availableById) ??
+                           ResolveDefaultId(index, availableById) ??
+                           TimeZoneInfo.Local.Id;
+            normalized.Add(resolved);
+        }
+
+        return normalized;
+    }
+
+    public static TimeZoneInfo ResolveTimeZoneOrLocal(string? timeZoneId)
+    {
+        if (TryResolveTimeZone(timeZoneId, out var resolved))
+        {
+            return resolved;
+        }
+
+        return TimeZoneInfo.Local;
+    }
+
+    private static Dictionary<string, TimeZoneInfo> BuildAvailableTimeZoneLookup(
+        IReadOnlyList<TimeZoneInfo> availableTimeZones)
+    {
+        return availableTimeZones
+            .Where(zone => !string.IsNullOrWhiteSpace(zone.Id))
+            .GroupBy(zone => zone.Id, StringComparer.OrdinalIgnoreCase)
+            .ToDictionary(group => group.Key, group => group.First(), StringComparer.OrdinalIgnoreCase);
+    }
+
+    private static string? ResolveDefaultId(
+        int slotIndex,
+        IReadOnlyDictionary<string, TimeZoneInfo> availableById)
+    {
+        var clampedIndex = Math.Clamp(slotIndex, 0, ClockCount - 1);
+        foreach (var candidateId in DefaultTimeZoneCandidates[clampedIndex])
+        {
+            var resolved = ResolveAvailableId(candidateId, availableById);
+            if (!string.IsNullOrWhiteSpace(resolved))
+            {
+                return resolved;
+            }
+        }
+
+        return null;
+    }
+
+    private static string? ResolveAvailableId(
+        string? candidateId,
+        IReadOnlyDictionary<string, TimeZoneInfo> availableById)
+    {
+        if (string.IsNullOrWhiteSpace(candidateId))
+        {
+            return null;
+        }
+
+        var normalizedCandidate = candidateId.Trim();
+        if (availableById.TryGetValue(normalizedCandidate, out var exact))
+        {
+            return exact.Id;
+        }
+
+        if (TryResolveTimeZone(normalizedCandidate, out var resolvedZone) &&
+            availableById.TryGetValue(resolvedZone.Id, out var resolved))
+        {
+            return resolved.Id;
+        }
+
+        if (!CrossPlatformAliases.TryGetValue(normalizedCandidate, out var aliases))
+        {
+            return null;
+        }
+
+        foreach (var alias in aliases)
+        {
+            if (availableById.TryGetValue(alias, out var aliasZone))
+            {
+                return aliasZone.Id;
+            }
+
+            if (TryResolveTimeZone(alias, out var aliasResolvedZone) &&
+                availableById.TryGetValue(aliasResolvedZone.Id, out var mappedAlias))
+            {
+                return mappedAlias.Id;
+            }
+        }
+
+        return null;
+    }
+
+    private static bool TryResolveTimeZone(string? timeZoneId, out TimeZoneInfo timeZone)
+    {
+        timeZone = TimeZoneInfo.Local;
+        if (string.IsNullOrWhiteSpace(timeZoneId))
+        {
+            return false;
+        }
+
+        var normalizedId = timeZoneId.Trim();
+        if (TryFindTimeZone(normalizedId, out timeZone))
+        {
+            return true;
+        }
+
+        if (!CrossPlatformAliases.TryGetValue(normalizedId, out var aliases))
+        {
+            return false;
+        }
+
+        foreach (var alias in aliases)
+        {
+            if (TryFindTimeZone(alias, out timeZone))
+            {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    private static bool TryFindTimeZone(string timeZoneId, out TimeZoneInfo timeZone)
+    {
+        timeZone = TimeZoneInfo.Local;
+        try
+        {
+            timeZone = TimeZoneInfo.FindSystemTimeZoneById(timeZoneId);
+            return true;
+        }
+        catch
+        {
+            return false;
+        }
+    }
+}

LanMountainDesktop/Styles/FluttermotionToken.axaml

@@ -0,0 +1,12 @@
+<Styles xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
+    <Styles.Resources>
+        <x:TimeSpan x:Key="FluttermotionToken.Duration.Fast">0:0:0.12</x:TimeSpan>
+        <x:TimeSpan x:Key="FluttermotionToken.Duration.Standard">0:0:0.16</x:TimeSpan>
+        <x:TimeSpan x:Key="FluttermotionToken.Duration.Slow">0:0:0.20</x:TimeSpan>
+        <x:TimeSpan x:Key="FluttermotionToken.Duration.Page">0:0:0.24</x:TimeSpan>
+        <x:TimeSpan x:Key="FluttermotionToken.Duration.Intro">0:0:0.32</x:TimeSpan>
+
+        <x:Double x:Key="FluttermotionToken.BackdropBlurRadiusStrong">30</x:Double>
+    </Styles.Resources>
+</Styles>

LanMountainDesktop/Styles/GlassModule.axaml

@@ -25,9 +25,9 @@
         <Setter Property="Padding" Value="16,10" />
         <Setter Property="Transitions">
             <Transitions>
-                <TransformOperationsTransition Property="RenderTransform" Duration="0:0:0.12" />
-                <DoubleTransition Property="Opacity" Duration="0:0:0.12" />
-                <BrushTransition Property="Background" Duration="0:0:0.12" />
+                <TransformOperationsTransition Property="RenderTransform" Duration="{StaticResource FluttermotionToken.Duration.Fast}" />
+                <DoubleTransition Property="Opacity" Duration="{StaticResource FluttermotionToken.Duration.Fast}" />
+                <BrushTransition Property="Background" Duration="{StaticResource FluttermotionToken.Duration.Fast}" />
             </Transitions>
         </Setter>
     </Style>
@@ -150,7 +150,7 @@
         <Setter Property="BoxShadow" Value="0 12 32 #33000000" />
         <Setter Property="Transitions">
             <Transitions>
-                <ThicknessTransition Property="Padding" Duration="0:0:0.2" Easing="QuarticEaseOut" />
+                <ThicknessTransition Property="Padding" Duration="{StaticResource FluttermotionToken.Duration.Slow}" Easing="QuarticEaseOut" />
             </Transitions>
         </Setter>
     </Style>

LanMountainDesktop/Styles/SettingsAnimations.axaml

@@ -21,7 +21,7 @@
             </Setter>
             <Style Selector="^[(behaviors|PanelIntroAnimationBehavior.IsAnimationPlayed)=True]">
                 <Style.Animations>
-                    <Animation Duration="0:0:0.32"
+                    <Animation Duration="{StaticResource FluttermotionToken.Duration.Intro}"
                                FillMode="Both"
                                Easing="0.22,1,0.36,1">
                         <KeyFrame Cue="0%">
@@ -53,9 +53,9 @@
         <Setter Property="MinHeight" Value="34" />
         <Setter Property="Transitions">
             <Transitions>
-                <BrushTransition Property="Background" Duration="0:0:0.16" Easing="0.22,1,0.36,1" />
-                <BrushTransition Property="BorderBrush" Duration="0:0:0.16" Easing="0.22,1,0.36,1" />
-                <TransformOperationsTransition Property="RenderTransform" Duration="0:0:0.16" Easing="0.22,1,0.36,1" />
+                <BrushTransition Property="Background" Duration="{StaticResource FluttermotionToken.Duration.Standard}" Easing="0.22,1,0.36,1" />
+                <BrushTransition Property="BorderBrush" Duration="{StaticResource FluttermotionToken.Duration.Standard}" Easing="0.22,1,0.36,1" />
+                <TransformOperationsTransition Property="RenderTransform" Duration="{StaticResource FluttermotionToken.Duration.Standard}" Easing="0.22,1,0.36,1" />
             </Transitions>
         </Setter>
     </Style>
@@ -74,8 +74,8 @@
     <Style Selector="Grid.settings-scope ComboBox">
         <Setter Property="Transitions">
             <Transitions>
-                <BrushTransition Property="Background" Duration="0:0:0.12" Easing="0.22,1,0.36,1" />
-                <TransformOperationsTransition Property="RenderTransform" Duration="0:0:0.12" Easing="0.22,1,0.36,1" />
+                <BrushTransition Property="Background" Duration="{StaticResource FluttermotionToken.Duration.Fast}" Easing="0.22,1,0.36,1" />
+                <TransformOperationsTransition Property="RenderTransform" Duration="{StaticResource FluttermotionToken.Duration.Fast}" Easing="0.22,1,0.36,1" />
             </Transitions>
         </Setter>
     </Style>
@@ -87,8 +87,8 @@
     <Style Selector="Grid.settings-scope ToggleSwitch">
         <Setter Property="Transitions">
             <Transitions>
-                <DoubleTransition Property="Opacity" Duration="0:0:0.16" Easing="0.22,1,0.36,1" />
-                <TransformOperationsTransition Property="RenderTransform" Duration="0:0:0.16" Easing="0.22,1,0.36,1" />
+                <DoubleTransition Property="Opacity" Duration="{StaticResource FluttermotionToken.Duration.Standard}" Easing="0.22,1,0.36,1" />
+                <TransformOperationsTransition Property="RenderTransform" Duration="{StaticResource FluttermotionToken.Duration.Standard}" Easing="0.22,1,0.36,1" />
             </Transitions>
         </Setter>
     </Style>

LanMountainDesktop/Theme/FluttermotionToken.cs

@@ -0,0 +1,17 @@
+using System;
+
+namespace LanMountainDesktop.Theme;
+
+public static class FluttermotionToken
+{
+    public static readonly TimeSpan Fast = TimeSpan.FromMilliseconds(120);
+    public static readonly TimeSpan Standard = TimeSpan.FromMilliseconds(160);
+    public static readonly TimeSpan Slow = TimeSpan.FromMilliseconds(200);
+    public static readonly TimeSpan Page = TimeSpan.FromMilliseconds(240);
+    public static readonly TimeSpan Intro = TimeSpan.FromMilliseconds(320);
+
+    public static readonly TimeSpan StaggerStepInterval = TimeSpan.FromMilliseconds(24);
+    public static readonly TimeSpan WeatherAnimationFrameInterval = TimeSpan.FromMilliseconds(64);
+
+    public const string StandardBezier = "0.22, 1, 0.36, 1";
+}

LanMountainDesktop/Views/Components/AnalogClockWidget.axaml.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Globalization;
+using System.Collections.Generic;
 using Avalonia;
 using Avalonia.Controls;
 using Avalonia.Controls.Shapes;
@@ -12,6 +13,40 @@ namespace LanMountainDesktop.Views.Components;
 
 public partial class AnalogClockWidget : UserControl, IDesktopComponentWidget, ITimeZoneAwareComponentWidget
 {
+    private static readonly IReadOnlyDictionary<string, string> ZhCityNames =
+        new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase)
+        {
+            ["China Standard Time"] = "\u5317\u4EAC",
+            ["Asia/Shanghai"] = "\u5317\u4EAC",
+            ["GMT Standard Time"] = "\u4F26\u6566",
+            ["Europe/London"] = "\u4F26\u6566",
+            ["AUS Eastern Standard Time"] = "\u6089\u5C3C",
+            ["Australia/Sydney"] = "\u6089\u5C3C",
+            ["Eastern Standard Time"] = "\u7EBD\u7EA6",
+            ["America/New_York"] = "\u7EBD\u7EA6",
+            ["Tokyo Standard Time"] = "\u4E1C\u4EAC",
+            ["Asia/Tokyo"] = "\u4E1C\u4EAC",
+            ["UTC"] = "\u534F\u8C03\u4E16\u754C\u65F6",
+            ["Etc/UTC"] = "\u534F\u8C03\u4E16\u754C\u65F6"
+        };
+
+    private static readonly IReadOnlyDictionary<string, string> EnCityNames =
+        new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase)
+        {
+            ["China Standard Time"] = "Beijing",
+            ["Asia/Shanghai"] = "Beijing",
+            ["GMT Standard Time"] = "London",
+            ["Europe/London"] = "London",
+            ["AUS Eastern Standard Time"] = "Sydney",
+            ["Australia/Sydney"] = "Sydney",
+            ["Eastern Standard Time"] = "New York",
+            ["America/New_York"] = "New York",
+            ["Tokyo Standard Time"] = "Tokyo",
+            ["Asia/Tokyo"] = "Tokyo",
+            ["UTC"] = "UTC",
+            ["Etc/UTC"] = "UTC"
+        };
+
     private readonly DispatcherTimer _timer = new()
     {
         Interval = TimeSpan.FromSeconds(1)
@@ -20,11 +55,17 @@ public partial class AnalogClockWidget : UserControl, IDesktopComponentWidget, I
     private const double DialSize = 258;
     private const double Center = DialSize / 2;
 
+    private readonly AppSettingsService _appSettingsService = new();
+    private readonly ComponentSettingsService _componentSettingsService = new();
+    private readonly LocalizationService _localizationService = new();
     private TimeZoneService? _timeZoneService;
     private double _currentCellSize = 48;
     private bool _dialInitialized;
     private bool _handsInitialized;
     private bool? _isNightModeApplied;
+    private TimeZoneInfo _clockTimeZone = WorldClockTimeZoneCatalog.ResolveTimeZoneOrLocal("China Standard Time");
+    private string _languageCode = "zh-CN";
+    private string _secondHandMode = ClockSecondHandMode.Tick;
     private readonly Line _hourHandLine = CreateHandLine("#1A2A46", 12);
     private readonly Line _minuteHandLine = CreateHandLine("#29406B", 8);
     private readonly Line _secondHandLine = CreateHandLine("#1A74F2", 4);
@@ -40,6 +81,8 @@ public partial class AnalogClockWidget : UserControl, IDesktopComponentWidget, I
 
         InitializeDialIfNeeded();
         InitializeHandsIfNeeded();
+        LoadClockSettings();
+        ApplySecondHandTimerInterval();
         UpdateClock();
     }
 
@@ -62,10 +105,19 @@ public partial class AnalogClockWidget : UserControl, IDesktopComponentWidget, I
         _timeZoneService = null;
     }
 
+    public void RefreshFromSettings()
+    {
+        LoadClockSettings();
+        ApplySecondHandTimerInterval();
+        UpdateClock();
+    }
+
     private void OnAttachedToVisualTree(object? sender, VisualTreeAttachmentEventArgs e)
     {
         InitializeDialIfNeeded();
         InitializeHandsIfNeeded();
+        LoadClockSettings();
+        ApplySecondHandTimerInterval();
         UpdateClock();
         _timer.Start();
     }
@@ -187,17 +239,22 @@ public partial class AnalogClockWidget : UserControl, IDesktopComponentWidget, I
     {
         ApplyModeVisualIfNeeded();
 
-        var now = _timeZoneService?.GetCurrentTime() ?? DateTime.Now;
-        var hourAngle = (now.Hour % 12 + now.Minute / 60d + now.Second / 3600d) * 30d;
-        var minuteAngle = (now.Minute + now.Second / 60d) * 6d;
-        var secondAngle = (now.Second + now.Millisecond / 1000d) * 6d;
+        var now = TimeZoneInfo.ConvertTimeFromUtc(DateTime.UtcNow, _clockTimeZone);
+        var secondValue = ClockSecondHandMode.IsSweep(_secondHandMode)
+            ? now.Second + now.Millisecond / 1000d
+            : now.Second;
+        var minuteValue = now.Minute + secondValue / 60d;
+        var hourValue = (now.Hour % 12) + minuteValue / 60d;
+
+        var hourAngle = hourValue * 30d;
+        var minuteAngle = minuteValue * 6d;
+        var secondAngle = secondValue * 6d;
 
         SetHandGeometry(_hourHandLine, hourAngle, forwardLength: 52, backwardLength: 6);
         SetHandGeometry(_minuteHandLine, minuteAngle, forwardLength: 76, backwardLength: 8);
         SetHandGeometry(_secondHandLine, secondAngle, forwardLength: 94, backwardLength: 18);
 
-        var isZh = CultureInfo.CurrentCulture.TwoLetterISOLanguageName.Equals("zh", StringComparison.OrdinalIgnoreCase);
-        CityTextBlock.Text = isZh ? "\u5317\u4eac" : "Beijing";
+        CityTextBlock.Text = ResolveCityName(_clockTimeZone);
     }
 
     private void ApplyModeVisualIfNeeded()
@@ -299,6 +356,54 @@ public partial class AnalogClockWidget : UserControl, IDesktopComponentWidget, I
         };
     }
 
+    private void LoadClockSettings()
+    {
+        var appSnapshot = _appSettingsService.Load();
+        var componentSnapshot = _componentSettingsService.Load();
+        _languageCode = _localizationService.NormalizeLanguageCode(appSnapshot.LanguageCode);
+
+        var configuredTimeZoneId = string.IsNullOrWhiteSpace(componentSnapshot.DesktopClockTimeZoneId)
+            ? "China Standard Time"
+            : componentSnapshot.DesktopClockTimeZoneId.Trim();
+
+        _clockTimeZone = WorldClockTimeZoneCatalog.ResolveTimeZoneOrLocal(configuredTimeZoneId);
+        _secondHandMode = ClockSecondHandMode.Normalize(componentSnapshot.DesktopClockSecondHandMode);
+    }
+
+    private void ApplySecondHandTimerInterval()
+    {
+        _timer.Interval = ClockSecondHandMode.IsSweep(_secondHandMode)
+            ? TimeSpan.FromMilliseconds(16)
+            : TimeSpan.FromSeconds(1);
+    }
+
+    private string ResolveCityName(TimeZoneInfo timeZone)
+    {
+        var cityNames = string.Equals(_languageCode, "zh-CN", StringComparison.OrdinalIgnoreCase)
+            ? ZhCityNames
+            : EnCityNames;
+        if (cityNames.TryGetValue(timeZone.Id, out var cityName))
+        {
+            return cityName;
+        }
+
+        var normalized = timeZone.Id;
+        var slashIndex = normalized.LastIndexOf('/');
+        if (slashIndex >= 0 && slashIndex < normalized.Length - 1)
+        {
+            normalized = normalized[(slashIndex + 1)..];
+        }
+
+        normalized = normalized.Replace('_', ' ').Trim();
+        normalized = normalized
+            .Replace("Standard Time", string.Empty, StringComparison.OrdinalIgnoreCase)
+            .Replace("Daylight Time", string.Empty, StringComparison.OrdinalIgnoreCase)
+            .Replace("Time", string.Empty, StringComparison.OrdinalIgnoreCase)
+            .Trim();
+
+        return string.IsNullOrWhiteSpace(normalized) ? timeZone.Id : normalized;
+    }
+
     private bool ResolveIsNightMode()
     {
         if (ActualThemeVariant == ThemeVariant.Dark)

LanMountainDesktop/Views/Components/AnalogClockWidgetSettingsWindow.axaml

@@ -0,0 +1,73 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             mc:Ignorable="d"
+             d:DesignWidth="560"
+             d:DesignHeight="300"
+             x:Class="LanMountainDesktop.Views.Components.AnalogClockWidgetSettingsWindow">
+    <Border Background="{DynamicResource AdaptiveBackgroundBrush}"
+            Padding="16">
+        <Grid RowDefinitions="Auto,Auto,*"
+              RowSpacing="10">
+            <TextBlock x:Name="TitleTextBlock"
+                       Text="时钟设置"
+                       FontSize="18"
+                       FontWeight="SemiBold"
+                       Foreground="{DynamicResource AdaptiveTextPrimaryBrush}" />
+
+            <TextBlock x:Name="DescriptionTextBlock"
+                       Grid.Row="1"
+                       Text="为单时钟选择时区。"
+                       FontSize="12"
+                       TextWrapping="Wrap"
+                       Foreground="{DynamicResource AdaptiveTextSecondaryBrush}" />
+
+            <ScrollViewer Grid.Row="2"
+                          HorizontalScrollBarVisibility="Disabled"
+                          VerticalScrollBarVisibility="Auto">
+                <StackPanel Spacing="10"
+                            Margin="0,0,6,0">
+                    <Border Background="{DynamicResource AdaptiveSurfaceRaisedBrush}"
+                            BorderBrush="{DynamicResource AdaptiveButtonBorderBrush}"
+                            BorderThickness="1"
+                            CornerRadius="12"
+                            Padding="12">
+                        <StackPanel Spacing="6">
+                            <TextBlock x:Name="TimeZoneLabelTextBlock"
+                                       Text="时区"
+                                       Foreground="{DynamicResource AdaptiveTextPrimaryBrush}" />
+                            <ComboBox x:Name="TimeZoneComboBox"
+                                      HorizontalAlignment="Stretch"
+                                      MinWidth="0"
+                                      SelectionChanged="OnTimeZoneSelectionChanged" />
+                        </StackPanel>
+                    </Border>
+
+                    <Border Background="{DynamicResource AdaptiveSurfaceRaisedBrush}"
+                            BorderBrush="{DynamicResource AdaptiveButtonBorderBrush}"
+                            BorderThickness="1"
+                            CornerRadius="12"
+                            Padding="12">
+                        <StackPanel Spacing="6">
+                            <TextBlock x:Name="SecondHandModeLabelTextBlock"
+                                       Text="秒针方式"
+                                       Foreground="{DynamicResource AdaptiveTextPrimaryBrush}" />
+                            <StackPanel Orientation="Horizontal"
+                                        Spacing="12">
+                                <RadioButton x:Name="SecondHandTickRadioButton"
+                                             GroupName="desktop_clock_second_mode"
+                                             Content="跳针"
+                                             Checked="OnSecondHandModeChanged" />
+                                <RadioButton x:Name="SecondHandSweepRadioButton"
+                                             GroupName="desktop_clock_second_mode"
+                                             Content="扫针"
+                                             Checked="OnSecondHandModeChanged" />
+                            </StackPanel>
+                        </StackPanel>
+                    </Border>
+                </StackPanel>
+            </ScrollViewer>
+        </Grid>
+    </Border>
+</UserControl>

LanMountainDesktop/Views/Components/AnalogClockWidgetSettingsWindow.axaml.cs

@@ -0,0 +1,208 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Avalonia.Controls;
+using Avalonia.Controls.Primitives;
+using Avalonia.Interactivity;
+using LanMountainDesktop.Services;
+
+namespace LanMountainDesktop.Views.Components;
+
+public partial class AnalogClockWidgetSettingsWindow : UserControl
+{
+    private static readonly IReadOnlyDictionary<string, string> ZhTimeZoneNames =
+        new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase)
+        {
+            ["China Standard Time"] = "中国标准时间",
+            ["Asia/Shanghai"] = "中国标准时间",
+            ["GMT Standard Time"] = "格林威治标准时间",
+            ["Europe/London"] = "格林威治标准时间",
+            ["AUS Eastern Standard Time"] = "澳大利亚东部标准时间",
+            ["Australia/Sydney"] = "澳大利亚东部标准时间",
+            ["Eastern Standard Time"] = "美国东部标准时间",
+            ["America/New_York"] = "美国东部标准时间",
+            ["Tokyo Standard Time"] = "日本标准时间",
+            ["Asia/Tokyo"] = "日本标准时间",
+            ["UTC"] = "协调世界时",
+            ["Etc/UTC"] = "协调世界时"
+        };
+
+    private readonly AppSettingsService _appSettingsService = new();
+    private readonly ComponentSettingsService _componentSettingsService = new();
+    private readonly LocalizationService _localizationService = new();
+    private readonly TimeZoneService _timeZoneService = new();
+    private bool _suppressEvents;
+    private string _languageCode = "zh-CN";
+    private IReadOnlyList<TimeZoneInfo> _allTimeZones = Array.Empty<TimeZoneInfo>();
+    private string _selectedTimeZoneId = string.Empty;
+    private string _secondHandMode = ClockSecondHandMode.Tick;
+
+    public event EventHandler? SettingsChanged;
+
+    public AnalogClockWidgetSettingsWindow()
+    {
+        InitializeComponent();
+        LoadState();
+        ApplyLocalization();
+        PopulateTimeZoneComboBox();
+    }
+
+    private void LoadState()
+    {
+        var appSnapshot = _appSettingsService.Load();
+        var componentSnapshot = _componentSettingsService.Load();
+        _languageCode = _localizationService.NormalizeLanguageCode(appSnapshot.LanguageCode);
+        _selectedTimeZoneId = string.IsNullOrWhiteSpace(componentSnapshot.DesktopClockTimeZoneId)
+            ? "China Standard Time"
+            : componentSnapshot.DesktopClockTimeZoneId.Trim();
+        _secondHandMode = ClockSecondHandMode.Normalize(componentSnapshot.DesktopClockSecondHandMode);
+
+        _allTimeZones = _timeZoneService
+            .GetAllTimeZones()
+            .OrderBy(zone => zone.GetUtcOffset(DateTime.UtcNow))
+            .ThenBy(zone => zone.DisplayName, StringComparer.OrdinalIgnoreCase)
+            .ToList();
+    }
+
+    private void ApplyLocalization()
+    {
+        TitleTextBlock.Text = L("desktop_clock.settings.title", "时钟设置");
+        DescriptionTextBlock.Text = L("desktop_clock.settings.desc", "为单时钟选择时区。");
+        TimeZoneLabelTextBlock.Text = L("desktop_clock.settings.timezone_label", "时区");
+        SecondHandModeLabelTextBlock.Text = L("desktop_clock.settings.second_mode_label", "秒针方式");
+        SecondHandTickRadioButton.Content = L("clock.second_mode.tick", "跳针");
+        SecondHandSweepRadioButton.Content = L("clock.second_mode.sweep", "扫针");
+    }
+
+    private void PopulateTimeZoneComboBox()
+    {
+        _suppressEvents = true;
+        try
+        {
+            TimeZoneComboBox.Items.Clear();
+            foreach (var timeZone in _allTimeZones)
+            {
+                TimeZoneComboBox.Items.Add(new ComboBoxItem
+                {
+                    Tag = timeZone.Id,
+                    Content = GetLocalizedTimeZoneDisplayName(timeZone)
+                });
+            }
+
+            var normalizedId = WorldClockTimeZoneCatalog.NormalizeTimeZoneIds(
+                new[] { _selectedTimeZoneId },
+                _allTimeZones)[0];
+            _selectedTimeZoneId = normalizedId;
+
+            var selected = TimeZoneComboBox.Items
+                .OfType<ComboBoxItem>()
+                .FirstOrDefault(item => string.Equals(item.Tag as string, normalizedId, StringComparison.OrdinalIgnoreCase));
+
+            TimeZoneComboBox.SelectedItem = selected ?? TimeZoneComboBox.Items.OfType<ComboBoxItem>().FirstOrDefault();
+
+            var normalizedMode = ClockSecondHandMode.Normalize(_secondHandMode);
+            SecondHandTickRadioButton.IsChecked = string.Equals(
+                normalizedMode,
+                ClockSecondHandMode.Tick,
+                StringComparison.OrdinalIgnoreCase);
+            SecondHandSweepRadioButton.IsChecked = string.Equals(
+                normalizedMode,
+                ClockSecondHandMode.Sweep,
+                StringComparison.OrdinalIgnoreCase);
+        }
+        finally
+        {
+            _suppressEvents = false;
+        }
+    }
+
+    private void OnTimeZoneSelectionChanged(object? sender, SelectionChangedEventArgs e)
+    {
+        _ = sender;
+        _ = e;
+        if (_suppressEvents)
+        {
+            return;
+        }
+
+        SaveState();
+    }
+
+    private void OnSecondHandModeChanged(object? sender, RoutedEventArgs e)
+    {
+        _ = sender;
+        _ = e;
+        if (_suppressEvents)
+        {
+            return;
+        }
+
+        SaveState();
+    }
+
+    private void SaveState()
+    {
+        var selectedId = (TimeZoneComboBox.SelectedItem as ComboBoxItem)?.Tag as string;
+        var normalizedId = WorldClockTimeZoneCatalog.NormalizeTimeZoneIds(
+            new[] { selectedId ?? _selectedTimeZoneId },
+            _allTimeZones)[0];
+        _selectedTimeZoneId = normalizedId;
+        _secondHandMode = GetSelectedSecondHandMode();
+
+        var snapshot = _componentSettingsService.Load();
+        snapshot.DesktopClockTimeZoneId = normalizedId;
+        snapshot.DesktopClockSecondHandMode = _secondHandMode;
+        _componentSettingsService.Save(snapshot);
+
+        SettingsChanged?.Invoke(this, EventArgs.Empty);
+    }
+
+    private string GetSelectedSecondHandMode()
+    {
+        return SecondHandSweepRadioButton.IsChecked == true
+            ? ClockSecondHandMode.Sweep
+            : ClockSecondHandMode.Tick;
+    }
+
+    private string GetLocalizedTimeZoneDisplayName(TimeZoneInfo timeZone)
+    {
+        var offset = timeZone.GetUtcOffset(DateTime.UtcNow);
+        var sign = offset >= TimeSpan.Zero ? "+" : "-";
+        var totalMinutes = Math.Abs((int)offset.TotalMinutes);
+        var hours = totalMinutes / 60;
+        var minutes = totalMinutes % 60;
+
+        var displayName = string.Equals(_languageCode, "zh-CN", StringComparison.OrdinalIgnoreCase)
+            ? ResolveZhDisplayName(timeZone)
+            : ResolveEnDisplayName(timeZone);
+
+        return $"(UTC{sign}{hours:D2}:{minutes:D2}) {displayName}";
+    }
+
+    private static string ResolveZhDisplayName(TimeZoneInfo timeZone)
+    {
+        if (ZhTimeZoneNames.TryGetValue(timeZone.Id, out var localizedName))
+        {
+            return localizedName;
+        }
+
+        return string.IsNullOrWhiteSpace(timeZone.StandardName)
+            ? timeZone.DisplayName
+            : timeZone.StandardName;
+    }
+
+    private static string ResolveEnDisplayName(TimeZoneInfo timeZone)
+    {
+        if (!string.IsNullOrWhiteSpace(timeZone.StandardName))
+        {
+            return timeZone.StandardName;
+        }
+
+        return timeZone.DisplayName;
+    }
+
+    private string L(string key, string fallback)
+    {
+        return _localizationService.GetString(_languageCode, key, fallback);
+    }
+}

LanMountainDesktop/Views/Components/BaiduHotSearchSettingsWindow.axaml

@@ -0,0 +1,110 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             mc:Ignorable="d"
+             d:DesignWidth="420"
+             d:DesignHeight="300"
+             x:Class="LanMountainDesktop.Views.Components.BaiduHotSearchSettingsWindow">
+    <Border Background="{DynamicResource AdaptiveBackgroundBrush}"
+            Padding="16">
+        <Grid RowDefinitions="Auto,Auto,*"
+              RowSpacing="10">
+            <TextBlock x:Name="TitleTextBlock"
+                       Text="Baidu hot search settings"
+                       FontSize="18"
+                       FontWeight="SemiBold"
+                       Foreground="{DynamicResource AdaptiveTextPrimaryBrush}" />
+
+            <TextBlock x:Name="DescriptionTextBlock"
+                       Grid.Row="1"
+                       Text="Configure source, auto refresh and refresh interval."
+                       FontSize="12"
+                       TextWrapping="Wrap"
+                       Foreground="{DynamicResource AdaptiveTextSecondaryBrush}" />
+
+            <ScrollViewer Grid.Row="2"
+                          HorizontalScrollBarVisibility="Disabled"
+                          VerticalScrollBarVisibility="Auto">
+                <StackPanel Spacing="10"
+                            Margin="0,0,6,0">
+                    <Border Background="{DynamicResource AdaptiveSurfaceRaisedBrush}"
+                            BorderBrush="{DynamicResource AdaptiveButtonBorderBrush}"
+                            BorderThickness="1"
+                            CornerRadius="12"
+                            Padding="12">
+                        <StackPanel Spacing="6">
+                            <TextBlock x:Name="SourceLabelTextBlock"
+                                       Text="Data source"
+                                       Foreground="{DynamicResource AdaptiveTextPrimaryBrush}" />
+                            <ComboBox x:Name="SourceComboBox"
+                                      HorizontalAlignment="Stretch"
+                                      MinWidth="0"
+                                      SelectionChanged="OnSourceSelectionChanged">
+                                <ComboBoxItem x:Name="SourceOfficialItem"
+                                              Tag="Official"
+                                              Content="Official Source" />
+                                <ComboBoxItem x:Name="SourceThirdPartyRssItem"
+                                              Tag="ThirdPartyRss"
+                                              Content="Third-party RSS" />
+                            </ComboBox>
+                        </StackPanel>
+                    </Border>
+
+                    <Border Background="{DynamicResource AdaptiveSurfaceRaisedBrush}"
+                            BorderBrush="{DynamicResource AdaptiveButtonBorderBrush}"
+                            BorderThickness="1"
+                            CornerRadius="12"
+                            Padding="12">
+                        <StackPanel Spacing="6">
+                            <TextBlock x:Name="AutoRefreshLabelTextBlock"
+                                       Text="Auto refresh"
+                                       Foreground="{DynamicResource AdaptiveTextPrimaryBrush}" />
+                            <CheckBox x:Name="AutoRefreshCheckBox"
+                                      Content="Enable auto refresh"
+                                      Checked="OnAutoRefreshChanged"
+                                      Unchecked="OnAutoRefreshChanged" />
+                        </StackPanel>
+                    </Border>
+
+                    <Border x:Name="FrequencyCardBorder"
+                            Background="{DynamicResource AdaptiveSurfaceRaisedBrush}"
+                            BorderBrush="{DynamicResource AdaptiveButtonBorderBrush}"
+                            BorderThickness="1"
+                            CornerRadius="12"
+                            Padding="12"
+                            IsVisible="False">
+                        <StackPanel Spacing="6">
+                            <TextBlock x:Name="FrequencyLabelTextBlock"
+                                       Text="Refresh interval"
+                                       Foreground="{DynamicResource AdaptiveTextPrimaryBrush}" />
+                            <ComboBox x:Name="FrequencyComboBox"
+                                      HorizontalAlignment="Stretch"
+                                      MinWidth="0"
+                                      SelectionChanged="OnFrequencySelectionChanged">
+                                <ComboBoxItem x:Name="Frequency5mItem"
+                                              Tag="5"
+                                              Content="5 min" />
+                                <ComboBoxItem x:Name="Frequency10mItem"
+                                              Tag="10"
+                                              Content="10 min" />
+                                <ComboBoxItem x:Name="Frequency15mItem"
+                                              Tag="15"
+                                              Content="15 min" />
+                                <ComboBoxItem x:Name="Frequency30mItem"
+                                              Tag="30"
+                                              Content="30 min" />
+                                <ComboBoxItem x:Name="Frequency1hItem"
+                                              Tag="60"
+                                              Content="1 hour" />
+                                <ComboBoxItem x:Name="Frequency3hItem"
+                                              Tag="180"
+                                              Content="3 hours" />
+                            </ComboBox>
+                        </StackPanel>
+                    </Border>
+                </StackPanel>
+            </ScrollViewer>
+        </Grid>
+    </Border>
+</UserControl>

LanMountainDesktop/Views/Components/BaiduHotSearchSettingsWindow.axaml.cs

@@ -0,0 +1,193 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Avalonia.Controls;
+using Avalonia.Controls.Primitives;
+using Avalonia.Interactivity;
+using LanMountainDesktop.Models;
+using LanMountainDesktop.Services;
+
+namespace LanMountainDesktop.Views.Components;
+
+public partial class BaiduHotSearchSettingsWindow : UserControl
+{
+    private static readonly IReadOnlyList<int> SupportedIntervals = RefreshIntervalCatalog.SupportedIntervalsMinutes;
+
+    private readonly AppSettingsService _appSettingsService = new();
+    private readonly ComponentSettingsService _componentSettingsService = new();
+    private readonly LocalizationService _localizationService = new();
+    private bool _suppressEvents;
+    private string _languageCode = "zh-CN";
+
+    public event EventHandler? SettingsChanged;
+
+    public BaiduHotSearchSettingsWindow()
+    {
+        InitializeComponent();
+        InitializeFrequencyOptions();
+        LoadState();
+        ApplyLocalization();
+    }
+
+    private void LoadState()
+    {
+        var appSnapshot = _appSettingsService.Load();
+        var componentSnapshot = _componentSettingsService.Load();
+        _languageCode = _localizationService.NormalizeLanguageCode(appSnapshot.LanguageCode);
+
+        var sourceType = BaiduHotSearchSourceTypes.Normalize(componentSnapshot.BaiduHotSearchSourceType);
+        var enabled = componentSnapshot.BaiduHotSearchAutoRefreshEnabled;
+        var interval = NormalizeInterval(componentSnapshot.BaiduHotSearchAutoRefreshIntervalMinutes);
+
+        _suppressEvents = true;
+        SelectSourceType(sourceType);
+        AutoRefreshCheckBox.IsChecked = enabled;
+        SelectInterval(interval);
+        FrequencyCardBorder.IsVisible = enabled;
+        _suppressEvents = false;
+    }
+
+    private void ApplyLocalization()
+    {
+        TitleTextBlock.Text = L("baiduhot.settings.title", "Baidu hot search settings");
+        DescriptionTextBlock.Text = L("baiduhot.settings.desc", "Configure source, auto refresh and refresh interval.");
+        SourceLabelTextBlock.Text = L("baiduhot.settings.source_label", "Data source");
+        SourceOfficialItem.Content = L("baiduhot.settings.source_official", "Official Source");
+        SourceThirdPartyRssItem.Content = L("baiduhot.settings.source_rss", "Third-party RSS");
+        AutoRefreshLabelTextBlock.Text = L("baiduhot.settings.auto_refresh_label", "Auto refresh");
+        AutoRefreshCheckBox.Content = L("baiduhot.settings.auto_refresh_enabled", "Enable auto refresh");
+        FrequencyLabelTextBlock.Text = L("baiduhot.settings.frequency_label", "Refresh interval");
+        ApplyFrequencyLocalization();
+    }
+
+    private void OnSourceSelectionChanged(object? sender, SelectionChangedEventArgs e)
+    {
+        _ = sender;
+        _ = e;
+        if (_suppressEvents)
+        {
+            return;
+        }
+
+        SaveState();
+    }
+
+    private void OnAutoRefreshChanged(object? sender, RoutedEventArgs e)
+    {
+        _ = sender;
+        _ = e;
+        if (_suppressEvents)
+        {
+            return;
+        }
+
+        var enabled = AutoRefreshCheckBox.IsChecked == true;
+        FrequencyCardBorder.IsVisible = enabled;
+        SaveState();
+    }
+
+    private void OnFrequencySelectionChanged(object? sender, SelectionChangedEventArgs e)
+    {
+        _ = sender;
+        _ = e;
+        if (_suppressEvents)
+        {
+            return;
+        }
+
+        SaveState();
+    }
+
+    private void SaveState()
+    {
+        var snapshot = _componentSettingsService.Load();
+        snapshot.BaiduHotSearchSourceType = GetSelectedSourceType();
+        snapshot.BaiduHotSearchAutoRefreshEnabled = AutoRefreshCheckBox.IsChecked == true;
+        snapshot.BaiduHotSearchAutoRefreshIntervalMinutes = GetSelectedInterval();
+        _componentSettingsService.Save(snapshot);
+        SettingsChanged?.Invoke(this, EventArgs.Empty);
+    }
+
+    private string GetSelectedSourceType()
+    {
+        if (SourceComboBox.SelectedItem is ComboBoxItem item &&
+            item.Tag is string sourceTag)
+        {
+            return BaiduHotSearchSourceTypes.Normalize(sourceTag);
+        }
+
+        return BaiduHotSearchSourceTypes.Official;
+    }
+
+    private int GetSelectedInterval()
+    {
+        if (FrequencyComboBox.SelectedItem is ComboBoxItem item &&
+            item.Tag is string tagText &&
+            int.TryParse(tagText, out var minutes))
+        {
+            return NormalizeInterval(minutes);
+        }
+
+        return 15;
+    }
+
+    private void SelectSourceType(string sourceType)
+    {
+        var normalizedSourceType = BaiduHotSearchSourceTypes.Normalize(sourceType);
+        var selected = SourceComboBox.Items
+            .OfType<ComboBoxItem>()
+            .FirstOrDefault(item =>
+                item.Tag is string sourceTag &&
+                string.Equals(BaiduHotSearchSourceTypes.Normalize(sourceTag), normalizedSourceType, StringComparison.OrdinalIgnoreCase));
+        SourceComboBox.SelectedItem = selected ?? SourceComboBox.Items.OfType<ComboBoxItem>().FirstOrDefault();
+    }
+
+    private void SelectInterval(int intervalMinutes)
+    {
+        var selected = FrequencyComboBox.Items
+            .OfType<ComboBoxItem>()
+            .FirstOrDefault(item =>
+                item.Tag is string tagText &&
+                int.TryParse(tagText, out var minutes) &&
+                minutes == intervalMinutes);
+        FrequencyComboBox.SelectedItem = selected ?? FrequencyComboBox.Items.OfType<ComboBoxItem>().FirstOrDefault();
+    }
+
+    private static int NormalizeInterval(int minutes)
+    {
+        return RefreshIntervalCatalog.Normalize(minutes, 15);
+    }
+
+    private void InitializeFrequencyOptions()
+    {
+        FrequencyComboBox.Items.Clear();
+        foreach (var minutes in SupportedIntervals)
+        {
+            FrequencyComboBox.Items.Add(new ComboBoxItem
+            {
+                Tag = minutes.ToString(),
+                Content = RefreshIntervalCatalog.ToEnglishFallbackLabel(minutes)
+            });
+        }
+    }
+
+    private void ApplyFrequencyLocalization()
+    {
+        foreach (var item in FrequencyComboBox.Items.OfType<ComboBoxItem>())
+        {
+            if (item.Tag is not string tagText ||
+                !int.TryParse(tagText, out var minutes))
+            {
+                continue;
+            }
+
+            var key = $"refresh.frequency.{RefreshIntervalCatalog.ToLocalizationKeySuffix(minutes)}";
+            item.Content = L(key, RefreshIntervalCatalog.ToEnglishFallbackLabel(minutes));
+        }
+    }
+
+    private string L(string key, string fallback)
+    {
+        return _localizationService.GetString(_languageCode, key, fallback);
+    }
+}

LanMountainDesktop/Views/Components/BaiduHotSearchWidget.axaml

@@ -0,0 +1,189 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             xmlns:fi="using:FluentIcons.Avalonia"
+             mc:Ignorable="d"
+             d:DesignWidth="640"
+             d:DesignHeight="320"
+             x:Class="LanMountainDesktop.Views.Components.BaiduHotSearchWidget">
+
+    <Border x:Name="RootBorder"
+            CornerRadius="34"
+            Background="Transparent"
+            ClipToBounds="True"
+            BorderThickness="0"
+            Padding="0">
+        <Grid>
+            <Border x:Name="CardBorder"
+                    Background="#FCFCFD"
+                    CornerRadius="34"
+                    BorderBrush="Transparent"
+                    BorderThickness="0"
+                    Padding="16,14,16,14">
+                <Grid x:Name="ContentGrid"
+                      RowDefinitions="Auto,Auto,Auto,Auto,Auto"
+                      RowSpacing="6">
+                    <Grid x:Name="HeaderGrid"
+                          Grid.Row="0"
+                          ColumnDefinitions="*,Auto"
+                          ColumnSpacing="10">
+                        <TextBlock x:Name="BrandTextBlock"
+                                   Text="百度热搜"
+                                   Foreground="#2932E1"
+                                   FontSize="24"
+                                   FontWeight="Bold"
+                                   VerticalAlignment="Center"
+                                   MaxLines="1"
+                                   TextTrimming="CharacterEllipsis" />
+
+                        <Button x:Name="RefreshButton"
+                                Grid.Column="1"
+                                Width="34"
+                                Height="34"
+                                CornerRadius="17"
+                                Background="#EFF1F5"
+                                BorderBrush="Transparent"
+                                BorderThickness="0"
+                                Padding="0"
+                                Focusable="False"
+                                ToolTip.Tip="刷新"
+                                Click="OnRefreshButtonClick">
+                            <fi:SymbolIcon x:Name="RefreshGlyphIcon"
+                                           Symbol="ArrowClockwise"
+                                           IconVariant="Regular"
+                                           Foreground="#5E6671"
+                                           FontSize="16"
+                                           HorizontalAlignment="Center"
+                                           VerticalAlignment="Center" />
+                        </Button>
+                    </Grid>
+
+                    <Border x:Name="HotItem1Host"
+                            Grid.Row="1"
+                            Tag="0"
+                            Background="Transparent"
+                            Padding="0,2"
+                            PointerPressed="OnHotItemPointerPressed">
+                        <Grid x:Name="HotItem1Grid"
+                              ColumnDefinitions="Auto,*"
+                              ColumnSpacing="8">
+                            <TextBlock x:Name="HotItem1IndexTextBlock"
+                                       Text="1"
+                                       Foreground="#2932E1"
+                                       FontSize="18"
+                                       FontWeight="Bold"
+                                       VerticalAlignment="Center"
+                                       HorizontalAlignment="Right"
+                                       TextAlignment="Right" />
+                            <TextBlock x:Name="HotItem1TextBlock"
+                                       Grid.Column="1"
+                                       Text="热搜内容"
+                                       Foreground="#202327"
+                                       FontSize="28"
+                                       FontWeight="SemiBold"
+                                       TextTrimming="CharacterEllipsis"
+                                       MaxLines="1"
+                                       VerticalAlignment="Center" />
+                        </Grid>
+                    </Border>
+
+                    <Border x:Name="HotItem2Host"
+                            Grid.Row="2"
+                            Tag="1"
+                            Background="Transparent"
+                            Padding="0,2"
+                            PointerPressed="OnHotItemPointerPressed">
+                        <Grid x:Name="HotItem2Grid"
+                              ColumnDefinitions="Auto,*"
+                              ColumnSpacing="8">
+                            <TextBlock x:Name="HotItem2IndexTextBlock"
+                                       Text="2"
+                                       Foreground="#2932E1"
+                                       FontSize="18"
+                                       FontWeight="Bold"
+                                       VerticalAlignment="Center"
+                                       HorizontalAlignment="Right"
+                                       TextAlignment="Right" />
+                            <TextBlock x:Name="HotItem2TextBlock"
+                                       Grid.Column="1"
+                                       Text="热搜内容"
+                                       Foreground="#202327"
+                                       FontSize="28"
+                                       FontWeight="SemiBold"
+                                       TextTrimming="CharacterEllipsis"
+                                       MaxLines="1"
+                                       VerticalAlignment="Center" />
+                        </Grid>
+                    </Border>
+
+                    <Border x:Name="HotItem3Host"
+                            Grid.Row="3"
+                            Tag="2"
+                            Background="Transparent"
+                            Padding="0,2"
+                            PointerPressed="OnHotItemPointerPressed">
+                        <Grid x:Name="HotItem3Grid"
+                              ColumnDefinitions="Auto,*"
+                              ColumnSpacing="8">
+                            <TextBlock x:Name="HotItem3IndexTextBlock"
+                                       Text="3"
+                                       Foreground="#2932E1"
+                                       FontSize="18"
+                                       FontWeight="Bold"
+                                       VerticalAlignment="Center"
+                                       HorizontalAlignment="Right"
+                                       TextAlignment="Right" />
+                            <TextBlock x:Name="HotItem3TextBlock"
+                                       Grid.Column="1"
+                                       Text="热搜内容"
+                                       Foreground="#202327"
+                                       FontSize="28"
+                                       FontWeight="SemiBold"
+                                       TextTrimming="CharacterEllipsis"
+                                       MaxLines="1"
+                                       VerticalAlignment="Center" />
+                        </Grid>
+                    </Border>
+
+                    <Border x:Name="HotItem4Host"
+                            Grid.Row="4"
+                            Tag="3"
+                            Background="Transparent"
+                            Padding="0,2"
+                            PointerPressed="OnHotItemPointerPressed">
+                        <Grid x:Name="HotItem4Grid"
+                              ColumnDefinitions="Auto,*"
+                              ColumnSpacing="8">
+                            <TextBlock x:Name="HotItem4IndexTextBlock"
+                                       Text="4"
+                                       Foreground="#2932E1"
+                                       FontSize="18"
+                                       FontWeight="Bold"
+                                       VerticalAlignment="Center"
+                                       HorizontalAlignment="Right"
+                                       TextAlignment="Right" />
+                            <TextBlock x:Name="HotItem4TextBlock"
+                                       Grid.Column="1"
+                                       Text="热搜内容"
+                                       Foreground="#202327"
+                                       FontSize="28"
+                                       FontWeight="SemiBold"
+                                       TextTrimming="CharacterEllipsis"
+                                       MaxLines="1"
+                                       VerticalAlignment="Center" />
+                        </Grid>
+                    </Border>
+                </Grid>
+            </Border>
+
+            <TextBlock x:Name="StatusTextBlock"
+                       IsVisible="False"
+                       Text="Loading"
+                       Foreground="#6A6F77"
+                       FontSize="16"
+                       HorizontalAlignment="Center"
+                       VerticalAlignment="Center" />
+        </Grid>
+    </Border>
+</UserControl>

LanMountainDesktop/Views/Components/BaiduHotSearchWidget.axaml.cs

@@ -0,0 +1,558 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using System.Text.RegularExpressions;
+using System.Threading;
+using System.Threading.Tasks;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Input;
+using Avalonia.Interactivity;
+using Avalonia.Layout;
+using Avalonia.Media;
+using Avalonia.Threading;
+using LanMountainDesktop.Models;
+using LanMountainDesktop.Services;
+
+namespace LanMountainDesktop.Views.Components;
+
+public partial class BaiduHotSearchWidget : UserControl, IDesktopComponentWidget, IRecommendationInfoAwareComponentWidget
+{
+    private static readonly Regex MultiWhitespaceRegex = new(@"\s+", RegexOptions.Compiled);
+    private static readonly FontFamily MiSansFontFamily = new("MiSans VF, avares://LanMountainDesktop/Assets/Fonts#MiSans");
+    private static readonly IRecommendationInfoService DefaultRecommendationService = new RecommendationDataService();
+
+    private const double BaseCellSize = 48d;
+    private const int BaseWidthCells = 4;
+    private const int BaseHeightCells = 2;
+    private const int MaxDisplayItemCount = 4;
+    private static readonly IReadOnlyList<int> SupportedAutoRefreshIntervalsMinutes = RefreshIntervalCatalog.SupportedIntervalsMinutes;
+
+    private readonly DispatcherTimer _refreshTimer = new()
+    {
+        Interval = TimeSpan.FromMinutes(15)
+    };
+
+    private readonly AppSettingsService _appSettingsService = new();
+    private readonly ComponentSettingsService _componentSettingsService = new();
+    private readonly LocalizationService _localizationService = new();
+    private readonly List<BaiduHotSearchItemSnapshot> _activeItems = [];
+    private readonly List<HotItemVisual> _hotItemVisuals = [];
+
+    private IRecommendationInfoService _recommendationService = DefaultRecommendationService;
+    private CancellationTokenSource? _refreshCts;
+    private string _languageCode = "zh-CN";
+    private double _currentCellSize = BaseCellSize;
+    private bool _isAttached;
+    private bool _isRefreshing;
+    private bool _autoRefreshEnabled = true;
+    private string _sourceType = BaiduHotSearchSourceTypes.Official;
+
+    private sealed record HotItemVisual(
+        Border Host,
+        Grid RowGrid,
+        TextBlock IndexTextBlock,
+        TextBlock TitleTextBlock);
+
+    public BaiduHotSearchWidget()
+    {
+        InitializeComponent();
+
+        BrandTextBlock.FontFamily = MiSansFontFamily;
+        HotItem1IndexTextBlock.FontFamily = MiSansFontFamily;
+        HotItem2IndexTextBlock.FontFamily = MiSansFontFamily;
+        HotItem3IndexTextBlock.FontFamily = MiSansFontFamily;
+        HotItem4IndexTextBlock.FontFamily = MiSansFontFamily;
+        HotItem1TextBlock.FontFamily = MiSansFontFamily;
+        HotItem2TextBlock.FontFamily = MiSansFontFamily;
+        HotItem3TextBlock.FontFamily = MiSansFontFamily;
+        HotItem4TextBlock.FontFamily = MiSansFontFamily;
+        StatusTextBlock.FontFamily = MiSansFontFamily;
+
+        _hotItemVisuals.Add(new HotItemVisual(HotItem1Host, HotItem1Grid, HotItem1IndexTextBlock, HotItem1TextBlock));
+        _hotItemVisuals.Add(new HotItemVisual(HotItem2Host, HotItem2Grid, HotItem2IndexTextBlock, HotItem2TextBlock));
+        _hotItemVisuals.Add(new HotItemVisual(HotItem3Host, HotItem3Grid, HotItem3IndexTextBlock, HotItem3TextBlock));
+        _hotItemVisuals.Add(new HotItemVisual(HotItem4Host, HotItem4Grid, HotItem4IndexTextBlock, HotItem4TextBlock));
+
+        _refreshTimer.Tick += OnRefreshTimerTick;
+        AttachedToVisualTree += OnAttachedToVisualTree;
+        DetachedFromVisualTree += OnDetachedFromVisualTree;
+        SizeChanged += OnSizeChanged;
+
+        ApplyCellSize(_currentCellSize);
+        UpdateLanguageCode();
+        ApplyAutoRefreshSettings();
+        ApplyLoadingState();
+        UpdateRefreshButtonState();
+    }
+
+    public void ApplyCellSize(double cellSize)
+    {
+        _currentCellSize = Math.Max(1, cellSize);
+        UpdateAdaptiveLayout();
+    }
+
+    public void SetRecommendationInfoService(IRecommendationInfoService recommendationInfoService)
+    {
+        _recommendationService = recommendationInfoService ?? DefaultRecommendationService;
+        if (_isAttached)
+        {
+            _ = RefreshHotSearchAsync(forceRefresh: false);
+        }
+    }
+
+    public void RefreshFromSettings()
+    {
+        _recommendationService.ClearCache();
+        ApplyAutoRefreshSettings();
+        if (_isAttached)
+        {
+            _ = RefreshHotSearchAsync(forceRefresh: true);
+        }
+    }
+
+    private void OnAttachedToVisualTree(object? sender, VisualTreeAttachmentEventArgs e)
+    {
+        _isAttached = true;
+        ApplyAutoRefreshSettings();
+        UpdateRefreshButtonState();
+        _ = RefreshHotSearchAsync(forceRefresh: false);
+    }
+
+    private void OnDetachedFromVisualTree(object? sender, VisualTreeAttachmentEventArgs e)
+    {
+        _isAttached = false;
+        _refreshTimer.Stop();
+        CancelRefreshRequest();
+        UpdateRefreshButtonState();
+    }
+
+    private void OnSizeChanged(object? sender, SizeChangedEventArgs e)
+    {
+        ApplyCellSize(_currentCellSize);
+    }
+
+    private async void OnRefreshTimerTick(object? sender, EventArgs e)
+    {
+        await RefreshHotSearchAsync(forceRefresh: true);
+    }
+
+    private async void OnRefreshButtonClick(object? sender, RoutedEventArgs e)
+    {
+        _ = sender;
+        await RefreshHotSearchAsync(forceRefresh: true);
+        e.Handled = true;
+    }
+
+    private async Task RefreshHotSearchAsync(bool forceRefresh)
+    {
+        if (!_isAttached || _isRefreshing)
+        {
+            return;
+        }
+
+        _isRefreshing = true;
+        UpdateLanguageCode();
+        UpdateRefreshButtonState();
+
+        var cts = new CancellationTokenSource();
+        var previous = Interlocked.Exchange(ref _refreshCts, cts);
+        previous?.Cancel();
+        previous?.Dispose();
+
+        try
+        {
+            var query = new BaiduHotSearchQuery(
+                Locale: _languageCode,
+                ItemCount: MaxDisplayItemCount,
+                SourceType: _sourceType,
+                ForceRefresh: forceRefresh);
+            var result = await _recommendationService.GetBaiduHotSearchAsync(query, cts.Token);
+            if (!_isAttached || cts.IsCancellationRequested)
+            {
+                return;
+            }
+
+            if (!result.Success || result.Data is null)
+            {
+                ApplyFailedState();
+                return;
+            }
+
+            ApplySnapshot(result.Data);
+        }
+        catch (OperationCanceledException)
+        {
+            // Ignore canceled requests.
+        }
+        catch
+        {
+            if (_isAttached && !cts.IsCancellationRequested)
+            {
+                ApplyFailedState();
+            }
+        }
+        finally
+        {
+            if (ReferenceEquals(_refreshCts, cts))
+            {
+                _refreshCts = null;
+            }
+
+            cts.Dispose();
+            _isRefreshing = false;
+            UpdateRefreshButtonState();
+        }
+    }
+
+    private void ApplySnapshot(BaiduHotSearchSnapshot snapshot)
+    {
+        BrandTextBlock.Text = L("baiduhot.widget.brand", "百度热搜");
+        ToolTip.SetTip(RefreshButton, L("baiduhot.widget.refresh_tooltip", "刷新"));
+
+        _activeItems.Clear();
+        foreach (var item in snapshot.Items)
+        {
+            if (string.IsNullOrWhiteSpace(item.Title) || string.IsNullOrWhiteSpace(item.Url))
+            {
+                continue;
+            }
+
+            _activeItems.Add(item);
+            if (_activeItems.Count >= MaxDisplayItemCount)
+            {
+                break;
+            }
+        }
+
+        var fallbackText = L("baiduhot.widget.fallback_item", "暂无热搜");
+        for (var i = 0; i < _hotItemVisuals.Count; i++)
+        {
+            var visual = _hotItemVisuals[i];
+            visual.Host.IsVisible = true;
+            visual.IndexTextBlock.Text = (i + 1).ToString();
+            visual.TitleTextBlock.Text = i < _activeItems.Count
+                ? NormalizeCompactText(_activeItems[i].Title)
+                : fallbackText;
+        }
+
+        StatusTextBlock.IsVisible = false;
+        UpdateInteractionState();
+        UpdateAdaptiveLayout();
+    }
+
+    private void ApplyLoadingState()
+    {
+        BrandTextBlock.Text = L("baiduhot.widget.brand", "百度热搜");
+        ToolTip.SetTip(RefreshButton, L("baiduhot.widget.refresh_tooltip", "刷新"));
+        _activeItems.Clear();
+
+        var loadingText = L("baiduhot.widget.loading_item", "加载中...");
+        for (var i = 0; i < _hotItemVisuals.Count; i++)
+        {
+            var visual = _hotItemVisuals[i];
+            visual.Host.IsVisible = true;
+            visual.IndexTextBlock.Text = (i + 1).ToString();
+            visual.TitleTextBlock.Text = loadingText;
+        }
+
+        StatusTextBlock.Text = L("baiduhot.widget.loading", "加载中...");
+        StatusTextBlock.IsVisible = true;
+        UpdateInteractionState();
+        UpdateAdaptiveLayout();
+    }
+
+    private void ApplyFailedState()
+    {
+        BrandTextBlock.Text = L("baiduhot.widget.brand", "百度热搜");
+        ToolTip.SetTip(RefreshButton, L("baiduhot.widget.refresh_tooltip", "刷新"));
+        _activeItems.Clear();
+
+        var fallbackText = L("baiduhot.widget.fallback_item", "暂无热搜");
+        for (var i = 0; i < _hotItemVisuals.Count; i++)
+        {
+            var visual = _hotItemVisuals[i];
+            visual.Host.IsVisible = true;
+            visual.IndexTextBlock.Text = (i + 1).ToString();
+            visual.TitleTextBlock.Text = fallbackText;
+        }
+
+        StatusTextBlock.Text = L("baiduhot.widget.fetch_failed", "热搜获取失败");
+        StatusTextBlock.IsVisible = true;
+        UpdateInteractionState();
+        UpdateAdaptiveLayout();
+    }
+
+    private void OnHotItemPointerPressed(object? sender, PointerPressedEventArgs e)
+    {
+        if (!e.GetCurrentPoint(this).Properties.IsLeftButtonPressed ||
+            sender is not Border host ||
+            host.Tag is null ||
+            !int.TryParse(host.Tag.ToString(), out var index) ||
+            index < 0 ||
+            index >= _activeItems.Count)
+        {
+            return;
+        }
+
+        TryOpenUrl(_activeItems[index].Url);
+        e.Handled = true;
+    }
+
+    private void UpdateAdaptiveLayout()
+    {
+        var scale = ResolveScale();
+        var softScale = Math.Clamp(scale, 0.84, 1.26);
+        var totalWidth = Bounds.Width > 1 ? Bounds.Width : _currentCellSize * BaseWidthCells;
+        var totalHeight = Bounds.Height > 1 ? Bounds.Height : _currentCellSize * BaseHeightCells;
+
+        RootBorder.CornerRadius = new CornerRadius(Math.Clamp(34 * softScale, 16, 52));
+        RootBorder.Padding = new Thickness(0);
+
+        var horizontalPadding = Math.Clamp(16 * softScale, 8, 24);
+        var verticalPadding = Math.Clamp(14 * softScale, 7, 20);
+        CardBorder.CornerRadius = new CornerRadius(Math.Clamp(34 * softScale, 16, 52));
+        CardBorder.Padding = new Thickness(horizontalPadding, verticalPadding, horizontalPadding, verticalPadding);
+
+        var innerWidth = Math.Max(120, totalWidth - (horizontalPadding * 2d));
+        var innerHeight = Math.Max(72, totalHeight - (verticalPadding * 2d));
+        var rowSpacing = Math.Clamp(6 * softScale, 2, 9);
+        ContentGrid.RowSpacing = rowSpacing;
+        HeaderGrid.ColumnSpacing = Math.Clamp(10 * softScale, 6, 16);
+
+        var availableRowsHeight = Math.Max(40, innerHeight - rowSpacing * 4d);
+        var minTopRowHeight = Math.Clamp(22 * softScale, 18, 34);
+        var topRowHeight = Math.Clamp(availableRowsHeight * 0.30, minTopRowHeight, 54);
+        var lineRowHeight = Math.Max(10, (availableRowsHeight - topRowHeight) / 4d);
+        var minLineRowHeight = Math.Clamp(13 * softScale, 11, 24);
+        if (lineRowHeight < minLineRowHeight)
+        {
+            lineRowHeight = minLineRowHeight;
+            topRowHeight = Math.Max(minTopRowHeight, availableRowsHeight - lineRowHeight * 4d);
+            lineRowHeight = Math.Max(10, (availableRowsHeight - topRowHeight) / 4d);
+        }
+
+        if (ContentGrid.RowDefinitions.Count >= 5)
+        {
+            ContentGrid.RowDefinitions[0].Height = new GridLength(topRowHeight);
+            for (var i = 1; i <= 4; i++)
+            {
+                ContentGrid.RowDefinitions[i].Height = new GridLength(lineRowHeight);
+            }
+        }
+
+        BrandTextBlock.FontSize = Math.Clamp(topRowHeight * 0.48, 12, 24);
+        BrandTextBlock.MaxWidth = Math.Max(80, innerWidth - Math.Clamp(topRowHeight * 0.84, 20, 46));
+
+        var refreshButtonSize = Math.Clamp(topRowHeight * 0.84, 20, 46);
+        RefreshButton.Width = refreshButtonSize;
+        RefreshButton.Height = refreshButtonSize;
+        RefreshButton.CornerRadius = new CornerRadius(refreshButtonSize / 2d);
+        RefreshGlyphIcon.FontSize = Math.Clamp(refreshButtonSize * 0.46, 10, 20);
+
+        var lineColumnGap = Math.Clamp(lineRowHeight * 0.34, 5, 12);
+        var indexWidth = Math.Clamp(lineRowHeight * 1.02, 16, 28);
+        var indexFont = Math.Clamp(lineRowHeight * 0.50, 10, 16);
+        var itemFont = Math.Clamp(lineRowHeight * 0.62, 12, 24);
+        var rowPadding = Math.Clamp(lineRowHeight * 0.08, 1, 4);
+        var itemTextWidth = Math.Max(56, innerWidth - indexWidth - lineColumnGap);
+
+        foreach (var visual in _hotItemVisuals)
+        {
+            visual.RowGrid.ColumnSpacing = lineColumnGap;
+            if (visual.RowGrid.ColumnDefinitions.Count > 0)
+            {
+                visual.RowGrid.ColumnDefinitions[0].Width = new GridLength(indexWidth, GridUnitType.Pixel);
+            }
+
+            visual.Host.Padding = new Thickness(0, rowPadding, 0, rowPadding);
+            visual.IndexTextBlock.FontSize = indexFont;
+            visual.IndexTextBlock.MaxWidth = indexWidth;
+            visual.TitleTextBlock.FontSize = itemFont;
+            visual.TitleTextBlock.MaxWidth = itemTextWidth;
+            visual.TitleTextBlock.TextAlignment = TextAlignment.Left;
+        }
+
+        StatusTextBlock.FontSize = Math.Clamp(itemFont, 10, 20);
+    }
+
+    private void UpdateInteractionState()
+    {
+        for (var i = 0; i < _hotItemVisuals.Count; i++)
+        {
+            var visual = _hotItemVisuals[i];
+            var enabled = i < _activeItems.Count && !string.IsNullOrWhiteSpace(_activeItems[i].Url);
+            visual.Host.IsHitTestVisible = enabled;
+            visual.Host.Opacity = enabled ? 1.0 : 0.68;
+            visual.Host.Cursor = enabled
+                ? new Cursor(StandardCursorType.Hand)
+                : new Cursor(StandardCursorType.Arrow);
+        }
+    }
+
+    private void UpdateRefreshButtonState()
+    {
+        var enabled = _isAttached && !_isRefreshing;
+        RefreshButton.IsEnabled = enabled;
+        RefreshButton.Opacity = enabled ? 1.0 : 0.65;
+    }
+
+    private void UpdateLanguageCode()
+    {
+        try
+        {
+            var snapshot = _appSettingsService.Load();
+            _languageCode = _localizationService.NormalizeLanguageCode(snapshot.LanguageCode);
+        }
+        catch
+        {
+            _languageCode = "zh-CN";
+        }
+    }
+
+    private void ApplyAutoRefreshSettings()
+    {
+        var enabled = true;
+        var intervalMinutes = 15;
+        var sourceType = BaiduHotSearchSourceTypes.Official;
+
+        try
+        {
+            var snapshot = _componentSettingsService.Load();
+            enabled = snapshot.BaiduHotSearchAutoRefreshEnabled;
+            intervalMinutes = NormalizeAutoRefreshIntervalMinutes(snapshot.BaiduHotSearchAutoRefreshIntervalMinutes);
+            sourceType = BaiduHotSearchSourceTypes.Normalize(snapshot.BaiduHotSearchSourceType);
+        }
+        catch
+        {
+            // Keep fallback defaults.
+        }
+
+        _autoRefreshEnabled = enabled;
+        _sourceType = sourceType;
+        _refreshTimer.Interval = TimeSpan.FromMinutes(intervalMinutes);
+
+        if (!_isAttached)
+        {
+            return;
+        }
+
+        if (_autoRefreshEnabled)
+        {
+            if (!_refreshTimer.IsEnabled)
+            {
+                _refreshTimer.Start();
+            }
+        }
+        else if (_refreshTimer.IsEnabled)
+        {
+            _refreshTimer.Stop();
+        }
+    }
+
+    private static int NormalizeAutoRefreshIntervalMinutes(int minutes)
+    {
+        if (minutes <= 0)
+        {
+            return 15;
+        }
+
+        if (SupportedAutoRefreshIntervalsMinutes.Contains(minutes))
+        {
+            return minutes;
+        }
+
+        return SupportedAutoRefreshIntervalsMinutes
+            .OrderBy(value => Math.Abs(value - minutes))
+            .FirstOrDefault(15);
+    }
+
+    private static string NormalizeCompactText(string? text)
+    {
+        if (string.IsNullOrWhiteSpace(text))
+        {
+            return string.Empty;
+        }
+
+        return MultiWhitespaceRegex.Replace(text.Trim(), " ");
+    }
+
+    private static string? NormalizeHttpUrl(string? rawUrl)
+    {
+        if (string.IsNullOrWhiteSpace(rawUrl))
+        {
+            return null;
+        }
+
+        var candidate = rawUrl.Trim();
+        if (!Uri.TryCreate(candidate, UriKind.Absolute, out var uri))
+        {
+            return null;
+        }
+
+        if (!string.Equals(uri.Scheme, Uri.UriSchemeHttp, StringComparison.OrdinalIgnoreCase) &&
+            !string.Equals(uri.Scheme, Uri.UriSchemeHttps, StringComparison.OrdinalIgnoreCase))
+        {
+            return null;
+        }
+
+        return uri.ToString();
+    }
+
+    private void TryOpenUrl(string? rawUrl)
+    {
+        var normalizedUrl = NormalizeHttpUrl(rawUrl);
+        if (string.IsNullOrWhiteSpace(normalizedUrl))
+        {
+            return;
+        }
+
+        try
+        {
+            var startInfo = new ProcessStartInfo
+            {
+                FileName = normalizedUrl,
+                UseShellExecute = true
+            };
+            Process.Start(startInfo);
+        }
+        catch
+        {
+            // Ignore malformed URLs or shell launch failures.
+        }
+    }
+
+    private double ResolveScale()
+    {
+        var expectedWidth = _currentCellSize * BaseWidthCells;
+        var expectedHeight = _currentCellSize * BaseHeightCells;
+        if (expectedWidth <= 0 || expectedHeight <= 0)
+        {
+            return 1d;
+        }
+
+        var actualWidth = Bounds.Width > 1 ? Bounds.Width : expectedWidth;
+        var actualHeight = Bounds.Height > 1 ? Bounds.Height : expectedHeight;
+        var scaleX = actualWidth / expectedWidth;
+        var scaleY = actualHeight / expectedHeight;
+        return Math.Clamp(Math.Min(scaleX, scaleY), 0.72, 2.8);
+    }
+
+    private string L(string key, string fallback)
+    {
+        return _localizationService.GetString(_languageCode, key, fallback);
+    }
+
+    private void CancelRefreshRequest()
+    {
+        var cts = Interlocked.Exchange(ref _refreshCts, null);
+        if (cts is null)
+        {
+            return;
+        }
+
+        cts.Cancel();
+        cts.Dispose();
+    }
+}

LanMountainDesktop/Views/Components/BilibiliHotSearchSettingsWindow.axaml

@@ -0,0 +1,87 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             mc:Ignorable="d"
+             d:DesignWidth="420"
+             d:DesignHeight="300"
+             x:Class="LanMountainDesktop.Views.Components.BilibiliHotSearchSettingsWindow">
+    <Border Background="{DynamicResource AdaptiveBackgroundBrush}"
+            Padding="16">
+        <Grid RowDefinitions="Auto,Auto,*"
+              RowSpacing="10">
+            <TextBlock x:Name="TitleTextBlock"
+                       Text="Bilibili hot search settings"
+                       FontSize="18"
+                       FontWeight="SemiBold"
+                       Foreground="{DynamicResource AdaptiveTextPrimaryBrush}" />
+
+            <TextBlock x:Name="DescriptionTextBlock"
+                       Grid.Row="1"
+                       Text="Configure auto refresh and refresh interval."
+                       FontSize="12"
+                       TextWrapping="Wrap"
+                       Foreground="{DynamicResource AdaptiveTextSecondaryBrush}" />
+
+            <ScrollViewer Grid.Row="2"
+                          HorizontalScrollBarVisibility="Disabled"
+                          VerticalScrollBarVisibility="Auto">
+                <StackPanel Spacing="10"
+                            Margin="0,0,6,0">
+                    <Border Background="{DynamicResource AdaptiveSurfaceRaisedBrush}"
+                            BorderBrush="{DynamicResource AdaptiveButtonBorderBrush}"
+                            BorderThickness="1"
+                            CornerRadius="12"
+                            Padding="12">
+                        <StackPanel Spacing="6">
+                            <TextBlock x:Name="AutoRefreshLabelTextBlock"
+                                       Text="Auto refresh"
+                                       Foreground="{DynamicResource AdaptiveTextPrimaryBrush}" />
+                            <CheckBox x:Name="AutoRefreshCheckBox"
+                                      Content="Enable auto refresh"
+                                      Checked="OnAutoRefreshChanged"
+                                      Unchecked="OnAutoRefreshChanged" />
+                        </StackPanel>
+                    </Border>
+
+                    <Border x:Name="FrequencyCardBorder"
+                            Background="{DynamicResource AdaptiveSurfaceRaisedBrush}"
+                            BorderBrush="{DynamicResource AdaptiveButtonBorderBrush}"
+                            BorderThickness="1"
+                            CornerRadius="12"
+                            Padding="12"
+                            IsVisible="False">
+                        <StackPanel Spacing="6">
+                            <TextBlock x:Name="FrequencyLabelTextBlock"
+                                       Text="Refresh interval"
+                                       Foreground="{DynamicResource AdaptiveTextPrimaryBrush}" />
+                            <ComboBox x:Name="FrequencyComboBox"
+                                      HorizontalAlignment="Stretch"
+                                      MinWidth="0"
+                                      SelectionChanged="OnFrequencySelectionChanged">
+                                <ComboBoxItem x:Name="Frequency5mItem"
+                                              Tag="5"
+                                              Content="5 min" />
+                                <ComboBoxItem x:Name="Frequency10mItem"
+                                              Tag="10"
+                                              Content="10 min" />
+                                <ComboBoxItem x:Name="Frequency15mItem"
+                                              Tag="15"
+                                              Content="15 min" />
+                                <ComboBoxItem x:Name="Frequency30mItem"
+                                              Tag="30"
+                                              Content="30 min" />
+                                <ComboBoxItem x:Name="Frequency1hItem"
+                                              Tag="60"
+                                              Content="1 hour" />
+                                <ComboBoxItem x:Name="Frequency3hItem"
+                                              Tag="180"
+                                              Content="3 hours" />
+                            </ComboBox>
+                        </StackPanel>
+                    </Border>
+                </StackPanel>
+            </ScrollViewer>
+        </Grid>
+    </Border>
+</UserControl>

LanMountainDesktop/Views/Components/BilibiliHotSearchSettingsWindow.axaml.cs

@@ -0,0 +1,153 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Avalonia.Controls;
+using Avalonia.Controls.Primitives;
+using Avalonia.Interactivity;
+using LanMountainDesktop.Models;
+using LanMountainDesktop.Services;
+
+namespace LanMountainDesktop.Views.Components;
+
+public partial class BilibiliHotSearchSettingsWindow : UserControl
+{
+    private static readonly IReadOnlyList<int> SupportedIntervals = RefreshIntervalCatalog.SupportedIntervalsMinutes;
+
+    private readonly AppSettingsService _appSettingsService = new();
+    private readonly ComponentSettingsService _componentSettingsService = new();
+    private readonly LocalizationService _localizationService = new();
+    private bool _suppressEvents;
+    private string _languageCode = "zh-CN";
+
+    public event EventHandler? SettingsChanged;
+
+    public BilibiliHotSearchSettingsWindow()
+    {
+        InitializeComponent();
+        InitializeFrequencyOptions();
+        LoadState();
+        ApplyLocalization();
+    }
+
+    private void LoadState()
+    {
+        var appSnapshot = _appSettingsService.Load();
+        var componentSnapshot = _componentSettingsService.Load();
+        _languageCode = _localizationService.NormalizeLanguageCode(appSnapshot.LanguageCode);
+
+        var enabled = componentSnapshot.BilibiliHotSearchAutoRefreshEnabled;
+        var interval = NormalizeInterval(componentSnapshot.BilibiliHotSearchAutoRefreshIntervalMinutes);
+
+        _suppressEvents = true;
+        AutoRefreshCheckBox.IsChecked = enabled;
+        SelectInterval(interval);
+        FrequencyCardBorder.IsVisible = enabled;
+        _suppressEvents = false;
+    }
+
+    private void ApplyLocalization()
+    {
+        TitleTextBlock.Text = L("bilihot.settings.title", "Bilibili hot search settings");
+        DescriptionTextBlock.Text = L("bilihot.settings.desc", "Configure auto refresh and refresh interval.");
+        AutoRefreshLabelTextBlock.Text = L("bilihot.settings.auto_refresh_label", "Auto refresh");
+        AutoRefreshCheckBox.Content = L("bilihot.settings.auto_refresh_enabled", "Enable auto refresh");
+        FrequencyLabelTextBlock.Text = L("bilihot.settings.frequency_label", "Refresh interval");
+        ApplyFrequencyLocalization();
+    }
+
+    private void OnAutoRefreshChanged(object? sender, RoutedEventArgs e)
+    {
+        _ = sender;
+        _ = e;
+        if (_suppressEvents)
+        {
+            return;
+        }
+
+        var enabled = AutoRefreshCheckBox.IsChecked == true;
+        FrequencyCardBorder.IsVisible = enabled;
+        SaveState();
+    }
+
+    private void OnFrequencySelectionChanged(object? sender, SelectionChangedEventArgs e)
+    {
+        _ = sender;
+        _ = e;
+        if (_suppressEvents)
+        {
+            return;
+        }
+
+        SaveState();
+    }
+
+    private void SaveState()
+    {
+        var snapshot = _componentSettingsService.Load();
+        snapshot.BilibiliHotSearchAutoRefreshEnabled = AutoRefreshCheckBox.IsChecked == true;
+        snapshot.BilibiliHotSearchAutoRefreshIntervalMinutes = GetSelectedInterval();
+        _componentSettingsService.Save(snapshot);
+        SettingsChanged?.Invoke(this, EventArgs.Empty);
+    }
+
+    private int GetSelectedInterval()
+    {
+        if (FrequencyComboBox.SelectedItem is ComboBoxItem item &&
+            item.Tag is string tagText &&
+            int.TryParse(tagText, out var minutes))
+        {
+            return NormalizeInterval(minutes);
+        }
+
+        return 15;
+    }
+
+    private void SelectInterval(int intervalMinutes)
+    {
+        var selected = FrequencyComboBox.Items
+            .OfType<ComboBoxItem>()
+            .FirstOrDefault(item =>
+                item.Tag is string tagText &&
+                int.TryParse(tagText, out var minutes) &&
+                minutes == intervalMinutes);
+        FrequencyComboBox.SelectedItem = selected ?? FrequencyComboBox.Items.OfType<ComboBoxItem>().FirstOrDefault();
+    }
+
+    private static int NormalizeInterval(int minutes)
+    {
+        return RefreshIntervalCatalog.Normalize(minutes, 15);
+    }
+
+    private void InitializeFrequencyOptions()
+    {
+        FrequencyComboBox.Items.Clear();
+        foreach (var minutes in SupportedIntervals)
+        {
+            FrequencyComboBox.Items.Add(new ComboBoxItem
+            {
+                Tag = minutes.ToString(),
+                Content = RefreshIntervalCatalog.ToEnglishFallbackLabel(minutes)
+            });
+        }
+    }
+
+    private void ApplyFrequencyLocalization()
+    {
+        foreach (var item in FrequencyComboBox.Items.OfType<ComboBoxItem>())
+        {
+            if (item.Tag is not string tagText ||
+                !int.TryParse(tagText, out var minutes))
+            {
+                continue;
+            }
+
+            var key = $"refresh.frequency.{RefreshIntervalCatalog.ToLocalizationKeySuffix(minutes)}";
+            item.Content = L(key, RefreshIntervalCatalog.ToEnglishFallbackLabel(minutes));
+        }
+    }
+
+    private string L(string key, string fallback)
+    {
+        return _localizationService.GetString(_languageCode, key, fallback);
+    }
+}

LanMountainDesktop/Views/Components/BilibiliHotSearchWidget.axaml

@@ -0,0 +1,196 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             xmlns:fi="using:FluentIcons.Avalonia"
+             mc:Ignorable="d"
+             d:DesignWidth="640"
+             d:DesignHeight="320"
+             x:Class="LanMountainDesktop.Views.Components.BilibiliHotSearchWidget">
+
+    <Border x:Name="RootBorder"
+            CornerRadius="34"
+            Background="Transparent"
+            ClipToBounds="True"
+            BorderThickness="0"
+            Padding="0">
+        <Grid>
+            <Border x:Name="CardBorder"
+                    Background="#FCFCFD"
+                    CornerRadius="34"
+                    BorderBrush="Transparent"
+                    BorderThickness="0"
+                    Padding="16,14,16,14">
+                <Grid x:Name="ContentGrid"
+                      RowDefinitions="Auto,Auto,Auto,Auto,Auto"
+                      RowSpacing="6">
+                    <Grid x:Name="HeaderGrid"
+                          Grid.Row="0"
+                          ColumnDefinitions="Auto,*"
+                          ColumnSpacing="10">
+                        <Border x:Name="SearchBoxBorder"
+                                Height="38"
+                                CornerRadius="19"
+                                Background="#F1F2F4"
+                                BorderBrush="Transparent"
+                                BorderThickness="0"
+                                Padding="10,0"
+                                HorizontalAlignment="Left"
+                                PointerPressed="OnSearchBoxPointerPressed">
+                            <Grid ColumnDefinitions="Auto,Auto"
+                                  ColumnSpacing="6"
+                                  VerticalAlignment="Center">
+                                <fi:SymbolIcon x:Name="SearchGlyphIcon"
+                                               Symbol="Search"
+                                               IconVariant="Regular"
+                                               Foreground="#7A8088"
+                                               FontSize="17"
+                                               VerticalAlignment="Center" />
+                                <TextBlock x:Name="SearchEntryTextBlock"
+                                           Grid.Column="1"
+                                           Text="Search"
+                                           Foreground="#7A8088"
+                                           FontSize="18"
+                                           FontWeight="Medium"
+                                           VerticalAlignment="Center"
+                                           MaxLines="1"
+                                           TextTrimming="CharacterEllipsis" />
+                            </Grid>
+                        </Border>
+
+                        <TextBlock x:Name="TopRightTitleTextBlock"
+                                   Grid.Column="1"
+                                   Text="bilibili热搜"
+                                   Foreground="#F44C9F"
+                                   FontSize="24"
+                                   FontWeight="Bold"
+                                   HorizontalAlignment="Right"
+                                   VerticalAlignment="Center"
+                                   MaxLines="1"
+                                   TextTrimming="CharacterEllipsis" />
+                    </Grid>
+
+                    <Border x:Name="HotItem1Host"
+                            Grid.Row="1"
+                            Tag="0"
+                            Background="Transparent"
+                            Padding="0,2"
+                            PointerPressed="OnHotItemPointerPressed">
+                        <Grid x:Name="HotItem1Grid"
+                              ColumnDefinitions="Auto,*"
+                              ColumnSpacing="8">
+                            <TextBlock x:Name="HotItem1IndexTextBlock"
+                                       Text="1"
+                                       Foreground="#F44C9F"
+                                       FontSize="18"
+                                       FontWeight="Bold"
+                                       VerticalAlignment="Center"
+                                       HorizontalAlignment="Left" />
+                            <TextBlock x:Name="HotItem1TextBlock"
+                                       Grid.Column="1"
+                                       Text="Trending Topic"
+                                       Foreground="#202327"
+                                       FontSize="28"
+                                       FontWeight="SemiBold"
+                                       TextTrimming="CharacterEllipsis"
+                                       MaxLines="1"
+                                       VerticalAlignment="Center" />
+                        </Grid>
+                    </Border>
+
+                    <Border x:Name="HotItem2Host"
+                            Grid.Row="2"
+                            Tag="1"
+                            Background="Transparent"
+                            Padding="0,2"
+                            PointerPressed="OnHotItemPointerPressed">
+                        <Grid x:Name="HotItem2Grid"
+                              ColumnDefinitions="Auto,*"
+                              ColumnSpacing="8">
+                            <TextBlock x:Name="HotItem2IndexTextBlock"
+                                       Text="2"
+                                       Foreground="#F44C9F"
+                                       FontSize="18"
+                                       FontWeight="Bold"
+                                       VerticalAlignment="Center"
+                                       HorizontalAlignment="Left" />
+                            <TextBlock x:Name="HotItem2TextBlock"
+                                       Grid.Column="1"
+                                       Text="Trending Topic"
+                                       Foreground="#202327"
+                                       FontSize="28"
+                                       FontWeight="SemiBold"
+                                       TextTrimming="CharacterEllipsis"
+                                       MaxLines="1"
+                                       VerticalAlignment="Center" />
+                        </Grid>
+                    </Border>
+
+                    <Border x:Name="HotItem3Host"
+                            Grid.Row="3"
+                            Tag="2"
+                            Background="Transparent"
+                            Padding="0,2"
+                            PointerPressed="OnHotItemPointerPressed">
+                        <Grid x:Name="HotItem3Grid"
+                              ColumnDefinitions="Auto,*"
+                              ColumnSpacing="8">
+                            <TextBlock x:Name="HotItem3IndexTextBlock"
+                                       Text="3"
+                                       Foreground="#F44C9F"
+                                       FontSize="18"
+                                       FontWeight="Bold"
+                                       VerticalAlignment="Center"
+                                       HorizontalAlignment="Left" />
+                            <TextBlock x:Name="HotItem3TextBlock"
+                                       Grid.Column="1"
+                                       Text="Trending Topic"
+                                       Foreground="#202327"
+                                       FontSize="28"
+                                       FontWeight="SemiBold"
+                                       TextTrimming="CharacterEllipsis"
+                                       MaxLines="1"
+                                       VerticalAlignment="Center" />
+                        </Grid>
+                    </Border>
+
+                    <Border x:Name="HotItem4Host"
+                            Grid.Row="4"
+                            Tag="3"
+                            Background="Transparent"
+                            Padding="0,2"
+                            PointerPressed="OnHotItemPointerPressed">
+                        <Grid x:Name="HotItem4Grid"
+                              ColumnDefinitions="Auto,*"
+                              ColumnSpacing="8">
+                            <TextBlock x:Name="HotItem4IndexTextBlock"
+                                       Text="4"
+                                       Foreground="#F44C9F"
+                                       FontSize="18"
+                                       FontWeight="Bold"
+                                       VerticalAlignment="Center"
+                                       HorizontalAlignment="Left" />
+                            <TextBlock x:Name="HotItem4TextBlock"
+                                       Grid.Column="1"
+                                       Text="Trending Topic"
+                                       Foreground="#202327"
+                                       FontSize="28"
+                                       FontWeight="SemiBold"
+                                       TextTrimming="CharacterEllipsis"
+                                       MaxLines="1"
+                                       VerticalAlignment="Center" />
+                        </Grid>
+                    </Border>
+                </Grid>
+            </Border>
+
+            <TextBlock x:Name="StatusTextBlock"
+                       IsVisible="False"
+                       Text="Loading"
+                       Foreground="#6A6F77"
+                       FontSize="16"
+                       HorizontalAlignment="Center"
+                       VerticalAlignment="Center" />
+        </Grid>
+    </Border>
+</UserControl>

LanMountainDesktop/Views/Components/BilibiliHotSearchWidget.axaml.cs

@@ -0,0 +1,581 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using System.Text.RegularExpressions;
+using System.Threading;
+using System.Threading.Tasks;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Input;
+using Avalonia.Media;
+using Avalonia.Threading;
+using LanMountainDesktop.Models;
+using LanMountainDesktop.Services;
+
+namespace LanMountainDesktop.Views.Components;
+
+public partial class BilibiliHotSearchWidget : UserControl, IDesktopComponentWidget, IRecommendationInfoAwareComponentWidget
+{
+    private static readonly Regex MultiWhitespaceRegex = new(@"\s+", RegexOptions.Compiled);
+    private static readonly FontFamily MiSansFontFamily = new("MiSans VF, avares://LanMountainDesktop/Assets/Fonts#MiSans");
+    private static readonly IRecommendationInfoService DefaultRecommendationService = new RecommendationDataService();
+
+    private const double BaseCellSize = 48d;
+    private const int BaseWidthCells = 4;
+    private const int BaseHeightCells = 2;
+    private const int MaxDisplayItemCount = 4;
+    private static readonly IReadOnlyList<int> SupportedAutoRefreshIntervalsMinutes = RefreshIntervalCatalog.SupportedIntervalsMinutes;
+
+    private readonly DispatcherTimer _refreshTimer = new()
+    {
+        Interval = TimeSpan.FromMinutes(15)
+    };
+
+    private readonly AppSettingsService _appSettingsService = new();
+    private readonly ComponentSettingsService _componentSettingsService = new();
+    private readonly LocalizationService _localizationService = new();
+    private readonly List<BilibiliHotSearchItemSnapshot> _activeItems = [];
+    private readonly List<HotItemVisual> _hotItemVisuals = [];
+
+    private IRecommendationInfoService _recommendationService = DefaultRecommendationService;
+    private CancellationTokenSource? _refreshCts;
+    private string _languageCode = "zh-CN";
+    private string? _searchPageUrl;
+    private double _currentCellSize = BaseCellSize;
+    private bool _isAttached;
+    private bool _isRefreshing;
+    private bool _autoRefreshEnabled = true;
+
+    private sealed record HotItemVisual(
+        Border Host,
+        Grid RowGrid,
+        TextBlock IndexTextBlock,
+        TextBlock TitleTextBlock);
+
+    public BilibiliHotSearchWidget()
+    {
+        InitializeComponent();
+
+        SearchEntryTextBlock.FontFamily = MiSansFontFamily;
+        TopRightTitleTextBlock.FontFamily = MiSansFontFamily;
+        HotItem1IndexTextBlock.FontFamily = MiSansFontFamily;
+        HotItem2IndexTextBlock.FontFamily = MiSansFontFamily;
+        HotItem3IndexTextBlock.FontFamily = MiSansFontFamily;
+        HotItem4IndexTextBlock.FontFamily = MiSansFontFamily;
+        HotItem1TextBlock.FontFamily = MiSansFontFamily;
+        HotItem2TextBlock.FontFamily = MiSansFontFamily;
+        HotItem3TextBlock.FontFamily = MiSansFontFamily;
+        HotItem4TextBlock.FontFamily = MiSansFontFamily;
+        StatusTextBlock.FontFamily = MiSansFontFamily;
+
+        _hotItemVisuals.Add(new HotItemVisual(HotItem1Host, HotItem1Grid, HotItem1IndexTextBlock, HotItem1TextBlock));
+        _hotItemVisuals.Add(new HotItemVisual(HotItem2Host, HotItem2Grid, HotItem2IndexTextBlock, HotItem2TextBlock));
+        _hotItemVisuals.Add(new HotItemVisual(HotItem3Host, HotItem3Grid, HotItem3IndexTextBlock, HotItem3TextBlock));
+        _hotItemVisuals.Add(new HotItemVisual(HotItem4Host, HotItem4Grid, HotItem4IndexTextBlock, HotItem4TextBlock));
+
+        _refreshTimer.Tick += OnRefreshTimerTick;
+        AttachedToVisualTree += OnAttachedToVisualTree;
+        DetachedFromVisualTree += OnDetachedFromVisualTree;
+        SizeChanged += OnSizeChanged;
+
+        ApplyCellSize(_currentCellSize);
+        UpdateLanguageCode();
+        ApplyAutoRefreshSettings();
+        ApplyLoadingState();
+    }
+
+    public void ApplyCellSize(double cellSize)
+    {
+        _currentCellSize = Math.Max(1, cellSize);
+        UpdateAdaptiveLayout();
+    }
+
+    public void SetRecommendationInfoService(IRecommendationInfoService recommendationInfoService)
+    {
+        _recommendationService = recommendationInfoService ?? DefaultRecommendationService;
+        if (_isAttached)
+        {
+            _ = RefreshHotSearchAsync(forceRefresh: false);
+        }
+    }
+
+    public void RefreshFromSettings()
+    {
+        _recommendationService.ClearCache();
+        ApplyAutoRefreshSettings();
+        if (_isAttached)
+        {
+            _ = RefreshHotSearchAsync(forceRefresh: true);
+        }
+    }
+
+    private void OnAttachedToVisualTree(object? sender, VisualTreeAttachmentEventArgs e)
+    {
+        _isAttached = true;
+        ApplyAutoRefreshSettings();
+        _ = RefreshHotSearchAsync(forceRefresh: false);
+    }
+
+    private void OnDetachedFromVisualTree(object? sender, VisualTreeAttachmentEventArgs e)
+    {
+        _isAttached = false;
+        _refreshTimer.Stop();
+        CancelRefreshRequest();
+    }
+
+    private void OnSizeChanged(object? sender, SizeChangedEventArgs e)
+    {
+        ApplyCellSize(_currentCellSize);
+    }
+
+    private async void OnRefreshTimerTick(object? sender, EventArgs e)
+    {
+        await RefreshHotSearchAsync(forceRefresh: false);
+    }
+
+    private async Task RefreshHotSearchAsync(bool forceRefresh)
+    {
+        if (!_isAttached || _isRefreshing)
+        {
+            return;
+        }
+
+        _isRefreshing = true;
+        UpdateLanguageCode();
+
+        var cts = new CancellationTokenSource();
+        var previous = Interlocked.Exchange(ref _refreshCts, cts);
+        previous?.Cancel();
+        previous?.Dispose();
+
+        try
+        {
+            var query = new BilibiliHotSearchQuery(
+                Locale: _languageCode,
+                ItemCount: MaxDisplayItemCount,
+                ForceRefresh: forceRefresh);
+            var result = await _recommendationService.GetBilibiliHotSearchAsync(query, cts.Token);
+            if (!_isAttached || cts.IsCancellationRequested)
+            {
+                return;
+            }
+
+            if (!result.Success || result.Data is null)
+            {
+                ApplyFailedState();
+                return;
+            }
+
+            ApplySnapshot(result.Data);
+        }
+        catch (OperationCanceledException)
+        {
+            // Ignore canceled requests.
+        }
+        catch
+        {
+            if (_isAttached && !cts.IsCancellationRequested)
+            {
+                ApplyFailedState();
+            }
+        }
+        finally
+        {
+            if (ReferenceEquals(_refreshCts, cts))
+            {
+                _refreshCts = null;
+            }
+
+            cts.Dispose();
+            _isRefreshing = false;
+        }
+    }
+
+    private void ApplySnapshot(BilibiliHotSearchSnapshot snapshot)
+    {
+        SearchEntryTextBlock.Text = ResolveSearchEntryText(snapshot.SearchPlaceholder);
+        TopRightTitleTextBlock.Text = L("bilihot.widget.top_right_label", "bilibili热搜");
+
+        _searchPageUrl = NormalizeHttpUrl(snapshot.SearchUrl) ?? BuildDefaultSearchPageUrl();
+
+        _activeItems.Clear();
+        foreach (var item in snapshot.Items)
+        {
+            if (string.IsNullOrWhiteSpace(item.Title) || string.IsNullOrWhiteSpace(item.Url))
+            {
+                continue;
+            }
+
+            _activeItems.Add(item);
+            if (_activeItems.Count >= MaxDisplayItemCount)
+            {
+                break;
+            }
+        }
+
+        var fallbackText = L("bilihot.widget.fallback_item", "暂无热搜");
+        for (var i = 0; i < _hotItemVisuals.Count; i++)
+        {
+            var visual = _hotItemVisuals[i];
+            visual.Host.IsVisible = true;
+            visual.IndexTextBlock.Text = (i + 1).ToString();
+            visual.TitleTextBlock.Text = i < _activeItems.Count
+                ? NormalizeCompactText(_activeItems[i].Title)
+                : fallbackText;
+        }
+
+        StatusTextBlock.IsVisible = false;
+        UpdateInteractionState();
+        UpdateAdaptiveLayout();
+    }
+
+    private void ApplyLoadingState()
+    {
+        SearchEntryTextBlock.Text = L("bilihot.widget.search_entry", "搜索");
+        TopRightTitleTextBlock.Text = L("bilihot.widget.top_right_label", "bilibili热搜");
+        _searchPageUrl = BuildDefaultSearchPageUrl();
+        _activeItems.Clear();
+
+        var loadingText = L("bilihot.widget.loading_item", "加载中...");
+        for (var i = 0; i < _hotItemVisuals.Count; i++)
+        {
+            var visual = _hotItemVisuals[i];
+            visual.Host.IsVisible = true;
+            visual.IndexTextBlock.Text = (i + 1).ToString();
+            visual.TitleTextBlock.Text = loadingText;
+        }
+
+        StatusTextBlock.Text = L("bilihot.widget.loading", "加载中...");
+        StatusTextBlock.IsVisible = true;
+        UpdateInteractionState();
+        UpdateAdaptiveLayout();
+    }
+
+    private void ApplyFailedState()
+    {
+        SearchEntryTextBlock.Text = L("bilihot.widget.search_entry", "搜索");
+        TopRightTitleTextBlock.Text = L("bilihot.widget.top_right_label", "bilibili热搜");
+        _searchPageUrl = BuildDefaultSearchPageUrl();
+        _activeItems.Clear();
+
+        var fallbackText = L("bilihot.widget.fallback_item", "暂无热搜");
+        for (var i = 0; i < _hotItemVisuals.Count; i++)
+        {
+            var visual = _hotItemVisuals[i];
+            visual.Host.IsVisible = true;
+            visual.IndexTextBlock.Text = (i + 1).ToString();
+            visual.TitleTextBlock.Text = fallbackText;
+        }
+
+        StatusTextBlock.Text = L("bilihot.widget.fetch_failed", "热搜获取失败");
+        StatusTextBlock.IsVisible = true;
+        UpdateInteractionState();
+        UpdateAdaptiveLayout();
+    }
+
+    private string ResolveSearchEntryText(string? placeholder)
+    {
+        var compact = NormalizeCompactText(placeholder);
+        if (string.IsNullOrWhiteSpace(compact))
+        {
+            return L("bilihot.widget.search_entry", "搜索");
+        }
+
+        return compact;
+    }
+
+    private void OnSearchBoxPointerPressed(object? sender, PointerPressedEventArgs e)
+    {
+        _ = sender;
+        if (!e.GetCurrentPoint(this).Properties.IsLeftButtonPressed)
+        {
+            return;
+        }
+
+        TryOpenUrl(_searchPageUrl);
+        e.Handled = true;
+    }
+
+    private void OnHotItemPointerPressed(object? sender, PointerPressedEventArgs e)
+    {
+        if (!e.GetCurrentPoint(this).Properties.IsLeftButtonPressed ||
+            sender is not Border host ||
+            host.Tag is null ||
+            !int.TryParse(host.Tag.ToString(), out var index) ||
+            index < 0 ||
+            index >= _activeItems.Count)
+        {
+            return;
+        }
+
+        TryOpenUrl(_activeItems[index].Url);
+        e.Handled = true;
+    }
+
+    private void UpdateAdaptiveLayout()
+    {
+        var scale = ResolveScale();
+        var softScale = Math.Clamp(scale, 0.84, 1.26);
+        var totalWidth = Bounds.Width > 1 ? Bounds.Width : _currentCellSize * BaseWidthCells;
+        var totalHeight = Bounds.Height > 1 ? Bounds.Height : _currentCellSize * BaseHeightCells;
+
+        RootBorder.CornerRadius = new CornerRadius(Math.Clamp(34 * softScale, 16, 52));
+        RootBorder.Padding = new Thickness(0);
+
+        var horizontalPadding = Math.Clamp(16 * softScale, 8, 24);
+        var verticalPadding = Math.Clamp(14 * softScale, 7, 20);
+        CardBorder.CornerRadius = new CornerRadius(Math.Clamp(34 * softScale, 16, 52));
+        CardBorder.Padding = new Thickness(horizontalPadding, verticalPadding, horizontalPadding, verticalPadding);
+
+        var innerWidth = Math.Max(120, totalWidth - (horizontalPadding * 2d));
+        var innerHeight = Math.Max(72, totalHeight - (verticalPadding * 2d));
+        var rowSpacing = Math.Clamp(6 * softScale, 2, 9);
+        ContentGrid.RowSpacing = rowSpacing;
+        HeaderGrid.ColumnSpacing = Math.Clamp(10 * softScale, 6, 16);
+
+        var availableRowsHeight = Math.Max(40, innerHeight - rowSpacing * 4d);
+        var minTopRowHeight = Math.Clamp(20 * softScale, 18, 34);
+        var topRowHeight = Math.Clamp(availableRowsHeight * 0.27, minTopRowHeight, 52);
+        var lineRowHeight = Math.Max(10, (availableRowsHeight - topRowHeight) / 4d);
+        var minLineRowHeight = Math.Clamp(13 * softScale, 11, 24);
+        if (lineRowHeight < minLineRowHeight)
+        {
+            lineRowHeight = minLineRowHeight;
+            topRowHeight = Math.Max(minTopRowHeight, availableRowsHeight - lineRowHeight * 4d);
+            lineRowHeight = Math.Max(10, (availableRowsHeight - topRowHeight) / 4d);
+        }
+
+        if (ContentGrid.RowDefinitions.Count >= 5)
+        {
+            ContentGrid.RowDefinitions[0].Height = new GridLength(topRowHeight);
+            for (var i = 1; i <= 4; i++)
+            {
+                ContentGrid.RowDefinitions[i].Height = new GridLength(lineRowHeight);
+            }
+        }
+
+        var searchBoxHeight = Math.Clamp(topRowHeight * 0.84, 20, 46);
+        SearchBoxBorder.Height = searchBoxHeight;
+        SearchBoxBorder.Width = Math.Clamp(innerWidth * 0.30, 80, 180);
+        SearchBoxBorder.CornerRadius = new CornerRadius(searchBoxHeight / 2d);
+        SearchBoxBorder.Padding = new Thickness(
+            Math.Clamp(searchBoxHeight * 0.24, 5, 10),
+            0,
+            Math.Clamp(searchBoxHeight * 0.24, 5, 10),
+            0);
+        SearchGlyphIcon.FontSize = Math.Clamp(searchBoxHeight * 0.45, 10, 20);
+        SearchEntryTextBlock.FontSize = Math.Clamp(searchBoxHeight * 0.44, 10, 18);
+
+        TopRightTitleTextBlock.MaxWidth = Math.Max(80, innerWidth - SearchBoxBorder.Width - HeaderGrid.ColumnSpacing);
+        TopRightTitleTextBlock.FontSize = Math.Clamp(topRowHeight * 0.46, 11, 22);
+
+        var lineColumnGap = Math.Clamp(lineRowHeight * 0.34, 5, 12);
+        var indexWidth = Math.Clamp(lineRowHeight * 1.02, 16, 28);
+        var indexFont = Math.Clamp(lineRowHeight * 0.50, 10, 16);
+        var itemFont = Math.Clamp(lineRowHeight * 0.62, 12, 24);
+        var rowPadding = Math.Clamp(lineRowHeight * 0.08, 1, 4);
+        var itemTextWidth = Math.Max(56, innerWidth - indexWidth - lineColumnGap);
+
+        foreach (var visual in _hotItemVisuals)
+        {
+            visual.RowGrid.ColumnSpacing = lineColumnGap;
+            if (visual.RowGrid.ColumnDefinitions.Count > 0)
+            {
+                visual.RowGrid.ColumnDefinitions[0].Width = new GridLength(indexWidth, GridUnitType.Pixel);
+            }
+
+            visual.Host.Padding = new Thickness(0, rowPadding, 0, rowPadding);
+            visual.IndexTextBlock.FontSize = indexFont;
+            visual.IndexTextBlock.MaxWidth = indexWidth;
+            visual.IndexTextBlock.HorizontalAlignment = Avalonia.Layout.HorizontalAlignment.Right;
+            visual.IndexTextBlock.TextAlignment = TextAlignment.Right;
+            visual.TitleTextBlock.FontSize = itemFont;
+            visual.TitleTextBlock.MaxWidth = itemTextWidth;
+            visual.TitleTextBlock.TextAlignment = TextAlignment.Left;
+        }
+
+        StatusTextBlock.FontSize = Math.Clamp(itemFont, 10, 20);
+    }
+
+    private void UpdateInteractionState()
+    {
+        for (var i = 0; i < _hotItemVisuals.Count; i++)
+        {
+            var visual = _hotItemVisuals[i];
+            var enabled = i < _activeItems.Count && !string.IsNullOrWhiteSpace(_activeItems[i].Url);
+            visual.Host.IsHitTestVisible = enabled;
+            visual.Host.Opacity = enabled ? 1.0 : 0.68;
+            visual.Host.Cursor = enabled
+                ? new Cursor(StandardCursorType.Hand)
+                : new Cursor(StandardCursorType.Arrow);
+        }
+
+        var searchEnabled = !string.IsNullOrWhiteSpace(_searchPageUrl);
+        SearchBoxBorder.IsHitTestVisible = searchEnabled;
+        SearchBoxBorder.Opacity = searchEnabled ? 1.0 : 0.72;
+        SearchBoxBorder.Cursor = searchEnabled
+            ? new Cursor(StandardCursorType.Hand)
+            : new Cursor(StandardCursorType.Arrow);
+    }
+
+    private void UpdateLanguageCode()
+    {
+        try
+        {
+            var snapshot = _appSettingsService.Load();
+            _languageCode = _localizationService.NormalizeLanguageCode(snapshot.LanguageCode);
+        }
+        catch
+        {
+            _languageCode = "zh-CN";
+        }
+    }
+
+    private void ApplyAutoRefreshSettings()
+    {
+        var enabled = true;
+        var intervalMinutes = 15;
+
+        try
+        {
+            var snapshot = _componentSettingsService.Load();
+            enabled = snapshot.BilibiliHotSearchAutoRefreshEnabled;
+            intervalMinutes = NormalizeAutoRefreshIntervalMinutes(snapshot.BilibiliHotSearchAutoRefreshIntervalMinutes);
+        }
+        catch
+        {
+            // Keep fallback defaults.
+        }
+
+        _autoRefreshEnabled = enabled;
+        _refreshTimer.Interval = TimeSpan.FromMinutes(intervalMinutes);
+
+        if (!_isAttached)
+        {
+            return;
+        }
+
+        if (_autoRefreshEnabled)
+        {
+            if (!_refreshTimer.IsEnabled)
+            {
+                _refreshTimer.Start();
+            }
+        }
+        else if (_refreshTimer.IsEnabled)
+        {
+            _refreshTimer.Stop();
+        }
+    }
+
+    private static int NormalizeAutoRefreshIntervalMinutes(int minutes)
+    {
+        if (minutes <= 0)
+        {
+            return 15;
+        }
+
+        if (SupportedAutoRefreshIntervalsMinutes.Contains(minutes))
+        {
+            return minutes;
+        }
+
+        return SupportedAutoRefreshIntervalsMinutes
+            .OrderBy(value => Math.Abs(value - minutes))
+            .FirstOrDefault(15);
+    }
+
+    private static string NormalizeCompactText(string? text)
+    {
+        if (string.IsNullOrWhiteSpace(text))
+        {
+            return string.Empty;
+        }
+
+        return MultiWhitespaceRegex.Replace(text.Trim(), " ");
+    }
+
+    private static string BuildDefaultSearchPageUrl()
+    {
+        return "https://search.bilibili.com/all";
+    }
+
+    private static string? NormalizeHttpUrl(string? rawUrl)
+    {
+        if (string.IsNullOrWhiteSpace(rawUrl))
+        {
+            return null;
+        }
+
+        var candidate = rawUrl.Trim();
+        if (!Uri.TryCreate(candidate, UriKind.Absolute, out var uri))
+        {
+            return null;
+        }
+
+        if (!string.Equals(uri.Scheme, Uri.UriSchemeHttp, StringComparison.OrdinalIgnoreCase) &&
+            !string.Equals(uri.Scheme, Uri.UriSchemeHttps, StringComparison.OrdinalIgnoreCase))
+        {
+            return null;
+        }
+
+        return uri.ToString();
+    }
+
+    private void TryOpenUrl(string? rawUrl)
+    {
+        var normalizedUrl = NormalizeHttpUrl(rawUrl);
+        if (string.IsNullOrWhiteSpace(normalizedUrl))
+        {
+            return;
+        }
+
+        try
+        {
+            var startInfo = new ProcessStartInfo
+            {
+                FileName = normalizedUrl,
+                UseShellExecute = true
+            };
+            Process.Start(startInfo);
+        }
+        catch
+        {
+            // Ignore malformed URLs or shell launch failures.
+        }
+    }
+
+    private double ResolveScale()
+    {
+        var expectedWidth = _currentCellSize * BaseWidthCells;
+        var expectedHeight = _currentCellSize * BaseHeightCells;
+        if (expectedWidth <= 0 || expectedHeight <= 0)
+        {
+            return 1d;
+        }
+
+        var actualWidth = Bounds.Width > 1 ? Bounds.Width : expectedWidth;
+        var actualHeight = Bounds.Height > 1 ? Bounds.Height : expectedHeight;
+        var scaleX = actualWidth / expectedWidth;
+        var scaleY = actualHeight / expectedHeight;
+        return Math.Clamp(Math.Min(scaleX, scaleY), 0.72, 2.8);
+    }
+
+    private string L(string key, string fallback)
+    {
+        return _localizationService.GetString(_languageCode, key, fallback);
+    }
+
+    private void CancelRefreshRequest()
+    {
+        var cts = Interlocked.Exchange(ref _refreshCts, null);
+        if (cts is null)
+        {
+            return;
+        }
+
+        cts.Cancel();
+        cts.Dispose();
+    }
+}

LanMountainDesktop/Views/Components/BrowserWidget.axaml

@@ -23,7 +23,23 @@
                     Background="#FFFFFFFF"
                     BorderBrush="#22000000"
                     BorderThickness="1">
-                <webview:WebView x:Name="BrowserWebView" />
+                <Grid>
+                    <webview:WebView x:Name="BrowserWebView" />
+                    <Border x:Name="UnavailableOverlay"
+                            IsVisible="False"
+                            Background="#CC0F172A"
+                            Padding="16">
+                        <TextBlock x:Name="UnavailableMessageTextBlock"
+                                   Foreground="#F8FAFC"
+                                   TextWrapping="Wrap"
+                                   TextAlignment="Center"
+                                   HorizontalAlignment="Center"
+                                   VerticalAlignment="Center"
+                                   MaxWidth="360"
+                                   FontSize="13"
+                                   Text="Browser runtime unavailable." />
+                    </Border>
+                </Grid>
             </Border>
 
             <Border x:Name="AddressBarBorder"

LanMountainDesktop/Views/Components/BrowserWidget.axaml.cs

@@ -6,6 +6,7 @@ using Avalonia.Interactivity;
 using Avalonia.Media;
 using Avalonia.Styling;
 using AvaloniaWebView;
+using LanMountainDesktop.Services;
 using WebViewCore.Events;
 
 namespace LanMountainDesktop.Views.Components;
@@ -20,6 +21,7 @@ public partial class BrowserWidget : UserControl, IDesktopComponentWidget
     private bool _isOnActiveDesktopPage;
     private bool _isEditMode;
     private bool _isWebViewActive = true;
+    private readonly WebView2RuntimeAvailability _runtimeAvailability;
 
     public BrowserWidget()
     {
@@ -31,7 +33,17 @@ public partial class BrowserWidget : UserControl, IDesktopComponentWidget
 
         ApplyCellSize(_currentCellSize);
         ApplyTheme(force: true);
-        BrowserWebView.NavigationStarting += OnBrowserWebViewNavigationStarting;
+
+        _runtimeAvailability = WebView2RuntimeProbe.GetAvailability();
+        if (_runtimeAvailability.IsAvailable)
+        {
+            BrowserWebView.NavigationStarting += OnBrowserWebViewNavigationStarting;
+        }
+        else
+        {
+            ApplyRuntimeUnavailableState();
+        }
+
         UpdateWebViewActiveState();
         NavigateTo(DefaultHomeUri);
     }
@@ -169,6 +181,11 @@ public partial class BrowserWidget : UserControl, IDesktopComponentWidget
 
     private void OnRefreshButtonClick(object? sender, RoutedEventArgs e)
     {
+        if (!_runtimeAvailability.IsAvailable)
+        {
+            return;
+        }
+
         if (!_isWebViewActive)
         {
             return;
@@ -185,11 +202,21 @@ public partial class BrowserWidget : UserControl, IDesktopComponentWidget
 
     private void OnGoButtonClick(object? sender, RoutedEventArgs e)
     {
+        if (!_runtimeAvailability.IsAvailable)
+        {
+            return;
+        }
+
         NavigateFromAddressBar();
     }
 
     private void OnAddressTextBoxKeyDown(object? sender, KeyEventArgs e)
     {
+        if (!_runtimeAvailability.IsAvailable)
+        {
+            return;
+        }
+
         if (e.Key != Key.Enter)
         {
             return;
@@ -201,6 +228,11 @@ public partial class BrowserWidget : UserControl, IDesktopComponentWidget
 
     private void NavigateFromAddressBar()
     {
+        if (!_runtimeAvailability.IsAvailable)
+        {
+            return;
+        }
+
         var target = TryNormalizeUri(AddressTextBox.Text);
         if (target is null)
         {
@@ -240,6 +272,15 @@ public partial class BrowserWidget : UserControl, IDesktopComponentWidget
 
     private void UpdateWebViewActiveState()
     {
+        if (!_runtimeAvailability.IsAvailable)
+        {
+            _isWebViewActive = false;
+            BrowserWebView.Url = null;
+            BrowserWebView.IsVisible = false;
+            BrowserWebView.IsHitTestVisible = false;
+            return;
+        }
+
         var shouldBeActive = _isOnActiveDesktopPage && !_isEditMode && IsVisible;
         if (_isWebViewActive == shouldBeActive)
         {
@@ -265,6 +306,24 @@ public partial class BrowserWidget : UserControl, IDesktopComponentWidget
         BrowserWebView.Url = _lastKnownUri;
     }
 
+    private void ApplyRuntimeUnavailableState()
+    {
+        _isWebViewActive = false;
+        BrowserWebView.Url = null;
+        BrowserWebView.IsVisible = false;
+        BrowserWebView.IsHitTestVisible = false;
+
+        RefreshButton.IsEnabled = false;
+        GoButton.IsEnabled = false;
+        AddressTextBox.IsEnabled = false;
+        AddressTextBox.Text = string.Empty;
+
+        UnavailableMessageTextBlock.Text = string.IsNullOrWhiteSpace(_runtimeAvailability.Message)
+            ? "WebView runtime unavailable."
+            : _runtimeAvailability.Message;
+        UnavailableOverlay.IsVisible = true;
+    }
+
     private static Uri? TryNormalizeUri(string? rawText)
     {
         if (string.IsNullOrWhiteSpace(rawText))

LanMountainDesktop/Views/Components/ClassScheduleSettingsWindow.axaml.cs

@@ -18,6 +18,7 @@ namespace LanMountainDesktop.Views.Components;
 public partial class ClassScheduleSettingsWindow : UserControl
 {
     private readonly AppSettingsService _appSettingsService = new();
+    private readonly ComponentSettingsService _componentSettingsService = new();
     private readonly LocalizationService _localizationService = new();
     private readonly List<ImportedClassScheduleSnapshot> _importedSchedules = [];
     private string _activeScheduleId = string.Empty;
@@ -35,11 +36,12 @@ public partial class ClassScheduleSettingsWindow : UserControl
 
     private void LoadState()
     {
-        var snapshot = _appSettingsService.Load();
-        _languageCode = _localizationService.NormalizeLanguageCode(snapshot.LanguageCode);
+        var appSnapshot = _appSettingsService.Load();
+        var componentSnapshot = _componentSettingsService.Load();
+        _languageCode = _localizationService.NormalizeLanguageCode(appSnapshot.LanguageCode);
 
         _importedSchedules.Clear();
-        foreach (var item in snapshot.ImportedClassSchedules)
+        foreach (var item in componentSnapshot.ImportedClassSchedules)
         {
             if (string.IsNullOrWhiteSpace(item.Id) ||
                 string.IsNullOrWhiteSpace(item.FilePath))
@@ -55,7 +57,7 @@ public partial class ClassScheduleSettingsWindow : UserControl
             });
         }
 
-        _activeScheduleId = snapshot.ActiveImportedClassScheduleId?.Trim() ?? string.Empty;
+        _activeScheduleId = componentSnapshot.ActiveImportedClassScheduleId?.Trim() ?? string.Empty;
         if (_importedSchedules.Count > 0 &&
             !_importedSchedules.Any(item => string.Equals(item.Id, _activeScheduleId, StringComparison.OrdinalIgnoreCase)))
         {
@@ -297,7 +299,7 @@ public partial class ClassScheduleSettingsWindow : UserControl
 
     private void SaveState()
     {
-        var snapshot = _appSettingsService.Load();
+        var snapshot = _componentSettingsService.Load();
         snapshot.ImportedClassSchedules = _importedSchedules
             .Select(item => new ImportedClassScheduleSnapshot
             {
@@ -307,7 +309,7 @@ public partial class ClassScheduleSettingsWindow : UserControl
             })
             .ToList();
         snapshot.ActiveImportedClassScheduleId = _activeScheduleId ?? string.Empty;
-        _appSettingsService.Save(snapshot);
+        _componentSettingsService.Save(snapshot);
         SettingsChanged?.Invoke(this, EventArgs.Empty);
     }
 

LanMountainDesktop/Views/Components/ClassScheduleWidget.axaml.cs

@@ -26,6 +26,7 @@ public partial class ClassScheduleWidget : UserControl, IDesktopComponentWidget,
     };
 
     private readonly AppSettingsService _appSettingsService = new();
+    private readonly ComponentSettingsService _componentSettingsService = new();
     private readonly LocalizationService _localizationService = new();
     private readonly IClassIslandScheduleDataService _scheduleService = new ClassIslandScheduleDataService();
 
@@ -115,11 +116,12 @@ public partial class ClassScheduleWidget : UserControl, IDesktopComponentWidget,
     private void RefreshSchedule()
     {
         var appSettings = _appSettingsService.Load();
+        var componentSettings = _componentSettingsService.Load();
         _languageCode = _localizationService.NormalizeLanguageCode(appSettings.LanguageCode);
         var now = _timeZoneService?.GetCurrentTime() ?? DateTime.Now;
         UpdateHeader(now);
 
-        var importedSchedulePath = ResolveImportedSchedulePath(appSettings);
+        var importedSchedulePath = ResolveImportedSchedulePath(componentSettings);
         var readResult = _scheduleService.Load(importedSchedulePath);
         if (!readResult.Success || readResult.Snapshot is null)
         {
@@ -273,7 +275,7 @@ public partial class ClassScheduleWidget : UserControl, IDesktopComponentWidget,
         return dayOfWeek.ToString()[..3];
     }
 
-    private static string? ResolveImportedSchedulePath(AppSettingsSnapshot snapshot)
+    private static string? ResolveImportedSchedulePath(ComponentSettingsSnapshot snapshot)
     {
         if (snapshot.ImportedClassSchedules.Count == 0)
         {

LanMountainDesktop/Views/Components/CnrDailyNewsSettingsWindow.axaml

@@ -0,0 +1,87 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             mc:Ignorable="d"
+             d:DesignWidth="420"
+             d:DesignHeight="300"
+             x:Class="LanMountainDesktop.Views.Components.CnrDailyNewsSettingsWindow">
+    <Border Background="{DynamicResource AdaptiveBackgroundBrush}"
+            Padding="16">
+        <Grid RowDefinitions="Auto,Auto,*"
+              RowSpacing="10">
+            <TextBlock x:Name="TitleTextBlock"
+                       Text="CNR news settings"
+                       FontSize="18"
+                       FontWeight="SemiBold"
+                       Foreground="{DynamicResource AdaptiveTextPrimaryBrush}" />
+
+            <TextBlock x:Name="DescriptionTextBlock"
+                       Grid.Row="1"
+                       Text="Configure auto-rotation and refresh interval."
+                       FontSize="12"
+                       TextWrapping="Wrap"
+                       Foreground="{DynamicResource AdaptiveTextSecondaryBrush}" />
+
+            <ScrollViewer Grid.Row="2"
+                          HorizontalScrollBarVisibility="Disabled"
+                          VerticalScrollBarVisibility="Auto">
+                <StackPanel Spacing="10"
+                            Margin="0,0,6,0">
+                    <Border Background="{DynamicResource AdaptiveSurfaceRaisedBrush}"
+                            BorderBrush="{DynamicResource AdaptiveButtonBorderBrush}"
+                            BorderThickness="1"
+                            CornerRadius="12"
+                            Padding="12">
+                        <StackPanel Spacing="6">
+                            <TextBlock x:Name="AutoRotateLabelTextBlock"
+                                       Text="Auto-rotation"
+                                       Foreground="{DynamicResource AdaptiveTextPrimaryBrush}" />
+                            <CheckBox x:Name="AutoRotateCheckBox"
+                                      Content="Enable auto-rotation"
+                                      Checked="OnAutoRotateChanged"
+                                      Unchecked="OnAutoRotateChanged" />
+                        </StackPanel>
+                    </Border>
+
+                    <Border x:Name="FrequencyCardBorder"
+                            Background="{DynamicResource AdaptiveSurfaceRaisedBrush}"
+                            BorderBrush="{DynamicResource AdaptiveButtonBorderBrush}"
+                            BorderThickness="1"
+                            CornerRadius="12"
+                            Padding="12"
+                            IsVisible="False">
+                        <StackPanel Spacing="6">
+                            <TextBlock x:Name="FrequencyLabelTextBlock"
+                                       Text="Rotation interval"
+                                       Foreground="{DynamicResource AdaptiveTextPrimaryBrush}" />
+                            <ComboBox x:Name="FrequencyComboBox"
+                                      HorizontalAlignment="Stretch"
+                                      MinWidth="0"
+                                      SelectionChanged="OnFrequencySelectionChanged">
+                                <ComboBoxItem x:Name="Frequency5mItem"
+                                              Tag="5"
+                                              Content="5 min" />
+                                <ComboBoxItem x:Name="Frequency10mItem"
+                                              Tag="10"
+                                              Content="10 min" />
+                                <ComboBoxItem x:Name="Frequency40mItem"
+                                              Tag="40"
+                                              Content="40 min" />
+                                <ComboBoxItem x:Name="Frequency1hItem"
+                                              Tag="60"
+                                              Content="1 hour" />
+                                <ComboBoxItem x:Name="Frequency12hItem"
+                                              Tag="720"
+                                              Content="12 hours" />
+                                <ComboBoxItem x:Name="Frequency24hItem"
+                                              Tag="1440"
+                                              Content="24 hours" />
+                            </ComboBox>
+                        </StackPanel>
+                    </Border>
+                </StackPanel>
+            </ScrollViewer>
+        </Grid>
+    </Border>
+</UserControl>

LanMountainDesktop/Views/Components/CnrDailyNewsSettingsWindow.axaml.cs

@@ -0,0 +1,153 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Avalonia.Controls;
+using Avalonia.Controls.Primitives;
+using Avalonia.Interactivity;
+using LanMountainDesktop.Models;
+using LanMountainDesktop.Services;
+
+namespace LanMountainDesktop.Views.Components;
+
+public partial class CnrDailyNewsSettingsWindow : UserControl
+{
+    private static readonly IReadOnlyList<int> SupportedIntervals = RefreshIntervalCatalog.SupportedIntervalsMinutes;
+
+    private readonly AppSettingsService _appSettingsService = new();
+    private readonly ComponentSettingsService _componentSettingsService = new();
+    private readonly LocalizationService _localizationService = new();
+    private bool _suppressEvents;
+    private string _languageCode = "zh-CN";
+
+    public event EventHandler? SettingsChanged;
+
+    public CnrDailyNewsSettingsWindow()
+    {
+        InitializeComponent();
+        InitializeFrequencyOptions();
+        LoadState();
+        ApplyLocalization();
+    }
+
+    private void LoadState()
+    {
+        var appSnapshot = _appSettingsService.Load();
+        var componentSnapshot = _componentSettingsService.Load();
+        _languageCode = _localizationService.NormalizeLanguageCode(appSnapshot.LanguageCode);
+
+        var enabled = componentSnapshot.CnrDailyNewsAutoRotateEnabled;
+        var interval = NormalizeInterval(componentSnapshot.CnrDailyNewsAutoRotateIntervalMinutes);
+
+        _suppressEvents = true;
+        AutoRotateCheckBox.IsChecked = enabled;
+        SelectInterval(interval);
+        FrequencyCardBorder.IsVisible = enabled;
+        _suppressEvents = false;
+    }
+
+    private void ApplyLocalization()
+    {
+        TitleTextBlock.Text = L("cnrnews.settings.title", "CNR news settings");
+        DescriptionTextBlock.Text = L("cnrnews.settings.desc", "Configure auto-rotation and refresh interval.");
+        AutoRotateLabelTextBlock.Text = L("cnrnews.settings.auto_rotate_label", "Auto-rotation");
+        AutoRotateCheckBox.Content = L("cnrnews.settings.auto_rotate_enabled", "Enable auto-rotation");
+        FrequencyLabelTextBlock.Text = L("cnrnews.settings.frequency_label", "Rotation interval");
+        ApplyFrequencyLocalization();
+    }
+
+    private void OnAutoRotateChanged(object? sender, RoutedEventArgs e)
+    {
+        _ = sender;
+        _ = e;
+        if (_suppressEvents)
+        {
+            return;
+        }
+
+        var enabled = AutoRotateCheckBox.IsChecked == true;
+        FrequencyCardBorder.IsVisible = enabled;
+        SaveState();
+    }
+
+    private void OnFrequencySelectionChanged(object? sender, SelectionChangedEventArgs e)
+    {
+        _ = sender;
+        _ = e;
+        if (_suppressEvents)
+        {
+            return;
+        }
+
+        SaveState();
+    }
+
+    private void SaveState()
+    {
+        var snapshot = _componentSettingsService.Load();
+        snapshot.CnrDailyNewsAutoRotateEnabled = AutoRotateCheckBox.IsChecked == true;
+        snapshot.CnrDailyNewsAutoRotateIntervalMinutes = GetSelectedInterval();
+        _componentSettingsService.Save(snapshot);
+        SettingsChanged?.Invoke(this, EventArgs.Empty);
+    }
+
+    private int GetSelectedInterval()
+    {
+        if (FrequencyComboBox.SelectedItem is ComboBoxItem item &&
+            item.Tag is string tagText &&
+            int.TryParse(tagText, out var minutes))
+        {
+            return NormalizeInterval(minutes);
+        }
+
+        return 60;
+    }
+
+    private void SelectInterval(int intervalMinutes)
+    {
+        var selected = FrequencyComboBox.Items
+            .OfType<ComboBoxItem>()
+            .FirstOrDefault(item =>
+                item.Tag is string tagText &&
+                int.TryParse(tagText, out var minutes) &&
+                minutes == intervalMinutes);
+        FrequencyComboBox.SelectedItem = selected ?? FrequencyComboBox.Items.OfType<ComboBoxItem>().FirstOrDefault();
+    }
+
+    private static int NormalizeInterval(int minutes)
+    {
+        return RefreshIntervalCatalog.Normalize(minutes, 60);
+    }
+
+    private void InitializeFrequencyOptions()
+    {
+        FrequencyComboBox.Items.Clear();
+        foreach (var minutes in SupportedIntervals)
+        {
+            FrequencyComboBox.Items.Add(new ComboBoxItem
+            {
+                Tag = minutes.ToString(),
+                Content = RefreshIntervalCatalog.ToEnglishFallbackLabel(minutes)
+            });
+        }
+    }
+
+    private void ApplyFrequencyLocalization()
+    {
+        foreach (var item in FrequencyComboBox.Items.OfType<ComboBoxItem>())
+        {
+            if (item.Tag is not string tagText ||
+                !int.TryParse(tagText, out var minutes))
+            {
+                continue;
+            }
+
+            var key = $"refresh.frequency.{RefreshIntervalCatalog.ToLocalizationKeySuffix(minutes)}";
+            item.Content = L(key, RefreshIntervalCatalog.ToEnglishFallbackLabel(minutes));
+        }
+    }
+
+    private string L(string key, string fallback)
+    {
+        return _localizationService.GetString(_languageCode, key, fallback);
+    }
+}

LanMountainDesktop/Views/Components/CnrDailyNewsWidget.axaml

@@ -0,0 +1,148 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             xmlns:fi="using:FluentIcons.Avalonia"
+             mc:Ignorable="d"
+             d:DesignWidth="640"
+             d:DesignHeight="320"
+             x:Class="LanMountainDesktop.Views.Components.CnrDailyNewsWidget">
+
+    <Border x:Name="RootBorder"
+            CornerRadius="34"
+            Background="Transparent"
+            ClipToBounds="True"
+            BorderThickness="0"
+            Padding="0">
+        <Grid>
+            <Border x:Name="CardBorder"
+                    Background="#FCFCFD"
+                    CornerRadius="34"
+                    BorderBrush="Transparent"
+                    BorderThickness="0"
+                    Padding="16,14,16,14">
+                <Grid RowDefinitions="Auto,Auto,Auto,Auto"
+                      RowSpacing="8">
+                    <Grid Grid.Row="0"
+                          ColumnDefinitions="*,Auto"
+                          ColumnSpacing="10">
+                        <StackPanel Orientation="Horizontal"
+                                    Spacing="0"
+                                    VerticalAlignment="Center">
+                            <TextBlock x:Name="BrandPrimaryTextBlock"
+                                       Text="&#22830;&#24191;&#32593;"
+                                       Foreground="#D6272E"
+                                       FontSize="28"
+                                       FontWeight="Bold"
+                                       TextTrimming="CharacterEllipsis" />
+                            <TextBlock x:Name="BrandSecondaryTextBlock"
+                                       Text="&#183;&#22836;&#26465;"
+                                       Foreground="#202327"
+                                       FontSize="28"
+                                       FontWeight="Bold"
+                                       TextTrimming="CharacterEllipsis" />
+                        </StackPanel>
+
+                        <Button x:Name="RefreshButton"
+                                Grid.Column="1"
+                                Width="116"
+                                Height="42"
+                                CornerRadius="21"
+                                Background="#F0F0F0"
+                                BorderBrush="Transparent"
+                                BorderThickness="0"
+                                Padding="10,0"
+                                Focusable="False">
+                            <StackPanel Orientation="Horizontal"
+                                        Spacing="4"
+                                        HorizontalAlignment="Center"
+                                        VerticalAlignment="Center">
+                                <fi:SymbolIcon x:Name="RefreshGlyphIcon"
+                                               Symbol="ArrowClockwise"
+                                               IconVariant="Regular"
+                                               Foreground="#52575F"
+                                               FontSize="19"
+                                               VerticalAlignment="Center" />
+                                <TextBlock x:Name="RefreshLabelTextBlock"
+                                           Text="&#25442;&#19968;&#25442;"
+                                           Foreground="#202327"
+                                           FontSize="25"
+                                           FontWeight="SemiBold"
+                                           VerticalAlignment="Center" />
+                            </StackPanel>
+                        </Button>
+                    </Grid>
+
+                    <Grid x:Name="NewsItem1Grid"
+                          Grid.Row="1"
+                          ColumnDefinitions="*,Auto"
+                          ColumnSpacing="12"
+                          PointerPressed="OnNewsItem1PointerPressed">
+                        <TextBlock x:Name="News1TitleTextBlock"
+                                   Text="Headline"
+                                   Foreground="#202327"
+                                   FontSize="21"
+                                   FontWeight="SemiBold"
+                                   TextWrapping="Wrap"
+                                   TextTrimming="CharacterEllipsis"
+                                   MaxLines="2"
+                                   VerticalAlignment="Top"
+                                   LineHeight="24" />
+
+                        <Border x:Name="News1ImageHost"
+                                Grid.Column="1"
+                                Width="160"
+                                Height="90"
+                                CornerRadius="16"
+                                ClipToBounds="True"
+                                Background="#E6E6E6">
+                            <Image x:Name="News1Image"
+                                   Stretch="UniformToFill" />
+                        </Border>
+                    </Grid>
+
+                    <Grid x:Name="NewsItem2Grid"
+                          Grid.Row="2"
+                          ColumnDefinitions="*,Auto"
+                          ColumnSpacing="12"
+                          PointerPressed="OnNewsItem2PointerPressed">
+                        <TextBlock x:Name="News2TitleTextBlock"
+                                   Text="Headline"
+                                   Foreground="#202327"
+                                   FontSize="21"
+                                   FontWeight="SemiBold"
+                                   TextWrapping="Wrap"
+                                   TextTrimming="CharacterEllipsis"
+                                   MaxLines="2"
+                                   VerticalAlignment="Top"
+                                   LineHeight="24" />
+
+                        <Border x:Name="News2ImageHost"
+                                Grid.Column="1"
+                                Width="160"
+                                Height="90"
+                                CornerRadius="16"
+                                ClipToBounds="True"
+                                Background="#E6E6E6">
+                            <Image x:Name="News2Image"
+                                   Stretch="UniformToFill" />
+                        </Border>
+                    </Grid>
+
+                    <StackPanel x:Name="ExtraNewsItemsPanel"
+                                Grid.Row="3"
+                                Spacing="6"
+                                IsVisible="False" />
+                </Grid>
+            </Border>
+
+            <TextBlock x:Name="StatusTextBlock"
+                       IsVisible="False"
+                       Text="Loading"
+                       Foreground="#6A6F77"
+                       FontSize="16"
+                       HorizontalAlignment="Center"
+                       VerticalAlignment="Center" />
+        </Grid>
+    </Border>
+</UserControl>

LanMountainDesktop/Views/Components/CnrDailyNewsWidget.axaml.cs

@@ -0,0 +1,811 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.IO;
+using System.Linq;
+using System.Net.Http;
+using System.Text.RegularExpressions;
+using System.Threading;
+using System.Threading.Tasks;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Controls.Documents;
+using Avalonia.Input;
+using Avalonia.Interactivity;
+using Avalonia.Media;
+using Avalonia.Media.Imaging;
+using Avalonia.Threading;
+using LanMountainDesktop.Models;
+using LanMountainDesktop.Services;
+
+namespace LanMountainDesktop.Views.Components;
+
+public partial class CnrDailyNewsWidget : UserControl, IDesktopComponentWidget, IRecommendationInfoAwareComponentWidget
+{
+    private static readonly Regex MultiWhitespaceRegex = new(@"\s+", RegexOptions.Compiled);
+    private static readonly FontFamily MiSansFontFamily = new("MiSans VF, avares://LanMountainDesktop/Assets/Fonts#MiSans");
+    private static readonly IRecommendationInfoService DefaultRecommendationService = new RecommendationDataService();
+    private static readonly HttpClient ImageHttpClient = new()
+    {
+        Timeout = TimeSpan.FromSeconds(8)
+    };
+
+    private const string BrowserUserAgent =
+        "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0 Safari/537.36";
+
+    private const double BaseCellSize = 48d;
+    private const int BaseWidthCells = 4;
+    private const int BaseHeightCells = 2;
+    private static readonly IReadOnlyList<int> SupportedAutoRotateIntervalsMinutes = RefreshIntervalCatalog.SupportedIntervalsMinutes;
+
+    private readonly DispatcherTimer _refreshTimer = new()
+    {
+        Interval = TimeSpan.FromMinutes(30)
+    };
+
+    private readonly AppSettingsService _appSettingsService = new();
+    private readonly ComponentSettingsService _componentSettingsService = new();
+    private readonly LocalizationService _localizationService = new();
+    private readonly Bitmap?[] _newsBitmaps = new Bitmap?[2];
+    private readonly List<string?> _newsUrls = [];
+    private readonly List<ExtraNewsRowVisual> _extraNewsRows = [];
+    private IReadOnlyList<DailyNewsItemSnapshot> _activeNewsItems = [];
+    private int _renderedNewsCount = 2;
+
+    private sealed class ExtraNewsRowVisual
+    {
+        public ExtraNewsRowVisual(
+            Grid rootGrid,
+            TextBlock titleTextBlock,
+            Border imageHost,
+            Image imageControl,
+            int newsIndex)
+        {
+            RootGrid = rootGrid;
+            TitleTextBlock = titleTextBlock;
+            ImageHost = imageHost;
+            ImageControl = imageControl;
+            NewsIndex = newsIndex;
+        }
+
+        public Grid RootGrid { get; }
+
+        public TextBlock TitleTextBlock { get; }
+
+        public Border ImageHost { get; }
+
+        public Image ImageControl { get; }
+
+        public int NewsIndex { get; }
+
+        public Bitmap? Bitmap { get; set; }
+    }
+
+    private IRecommendationInfoService _recommendationService = DefaultRecommendationService;
+    private CancellationTokenSource? _refreshCts;
+    private string _languageCode = "zh-CN";
+    private double _currentCellSize = BaseCellSize;
+    private bool _isAttached;
+    private bool _isRefreshing;
+    private bool _autoRotateEnabled = true;
+
+    public CnrDailyNewsWidget()
+    {
+        InitializeComponent();
+
+        BrandPrimaryTextBlock.FontFamily = MiSansFontFamily;
+        BrandSecondaryTextBlock.FontFamily = MiSansFontFamily;
+        RefreshLabelTextBlock.FontFamily = MiSansFontFamily;
+        News1TitleTextBlock.FontFamily = MiSansFontFamily;
+        News2TitleTextBlock.FontFamily = MiSansFontFamily;
+        StatusTextBlock.FontFamily = MiSansFontFamily;
+
+        _refreshTimer.Tick += OnRefreshTimerTick;
+        RefreshButton.Click += OnRefreshButtonClick;
+        AttachedToVisualTree += OnAttachedToVisualTree;
+        DetachedFromVisualTree += OnDetachedFromVisualTree;
+        SizeChanged += OnSizeChanged;
+
+        ApplyCellSize(_currentCellSize);
+        UpdateLanguageCode();
+        ApplyAutoRotateSettings();
+        ApplyLoadingState();
+        UpdateRefreshButtonState();
+    }
+
+    public void ApplyCellSize(double cellSize)
+    {
+        _currentCellSize = Math.Max(1, cellSize);
+        UpdateAdaptiveLayout();
+    }
+
+    public void SetRecommendationInfoService(IRecommendationInfoService recommendationInfoService)
+    {
+        _recommendationService = recommendationInfoService ?? DefaultRecommendationService;
+        if (_isAttached)
+        {
+            _ = RefreshNewsAsync(forceRefresh: false);
+        }
+    }
+
+    public void RefreshFromSettings()
+    {
+        _recommendationService.ClearCache();
+        ApplyAutoRotateSettings();
+        if (_isAttached)
+        {
+            _ = RefreshNewsAsync(forceRefresh: true);
+        }
+    }
+
+    private void OnAttachedToVisualTree(object? sender, VisualTreeAttachmentEventArgs e)
+    {
+        _isAttached = true;
+        ApplyAutoRotateSettings();
+        UpdateRefreshButtonState();
+        _ = RefreshNewsAsync(forceRefresh: false);
+    }
+
+    private void OnDetachedFromVisualTree(object? sender, VisualTreeAttachmentEventArgs e)
+    {
+        _isAttached = false;
+        _refreshTimer.Stop();
+        CancelRefreshRequest();
+        DisposeNewsBitmaps();
+        ClearExtraNewsRows();
+        UpdateRefreshButtonState();
+    }
+
+    private void OnSizeChanged(object? sender, SizeChangedEventArgs e)
+    {
+        ApplyCellSize(_currentCellSize);
+    }
+
+    private async void OnRefreshButtonClick(object? sender, RoutedEventArgs e)
+    {
+        if (_isRefreshing)
+        {
+            return;
+        }
+
+        await RefreshNewsAsync(forceRefresh: true);
+        e.Handled = true;
+    }
+
+    private async void OnRefreshTimerTick(object? sender, EventArgs e)
+    {
+        await RefreshNewsAsync(forceRefresh: true);
+    }
+
+    private void OnNewsItem1PointerPressed(object? sender, PointerPressedEventArgs e)
+    {
+        if (!e.GetCurrentPoint(this).Properties.IsLeftButtonPressed)
+        {
+            return;
+        }
+
+        TryOpenNewsUrl(0);
+        e.Handled = true;
+    }
+
+    private void OnNewsItem2PointerPressed(object? sender, PointerPressedEventArgs e)
+    {
+        if (!e.GetCurrentPoint(this).Properties.IsLeftButtonPressed)
+        {
+            return;
+        }
+
+        TryOpenNewsUrl(1);
+        e.Handled = true;
+    }
+
+    private void OnExtraNewsItemPointerPressed(object? sender, PointerPressedEventArgs e)
+    {
+        if (!e.GetCurrentPoint(this).Properties.IsLeftButtonPressed ||
+            sender is not Control control ||
+            control.Tag is not int index)
+        {
+            return;
+        }
+
+        TryOpenNewsUrl(index);
+        e.Handled = true;
+    }
+
+    private async Task RefreshNewsAsync(bool forceRefresh)
+    {
+        if (!_isAttached || _isRefreshing)
+        {
+            return;
+        }
+
+        _isRefreshing = true;
+        UpdateRefreshButtonState();
+        UpdateLanguageCode();
+
+        var cts = new CancellationTokenSource();
+        var previous = Interlocked.Exchange(ref _refreshCts, cts);
+        previous?.Cancel();
+        previous?.Dispose();
+
+        try
+        {
+            var query = new DailyNewsQuery(
+                Locale: _languageCode,
+                ItemCount: ResolveDesiredNewsItemCount(),
+                ForceRefresh: forceRefresh);
+            var result = await _recommendationService.GetDailyNewsAsync(query, cts.Token);
+            if (!_isAttached || cts.IsCancellationRequested)
+            {
+                return;
+            }
+
+            if (!result.Success || result.Data is null)
+            {
+                ApplyFailedState();
+                return;
+            }
+
+            await ApplySnapshotAsync(result.Data, cts.Token);
+        }
+        catch (OperationCanceledException)
+        {
+            // Ignore canceled requests.
+        }
+        catch
+        {
+            if (_isAttached && !cts.IsCancellationRequested)
+            {
+                ApplyFailedState();
+            }
+        }
+        finally
+        {
+            if (ReferenceEquals(_refreshCts, cts))
+            {
+                _refreshCts = null;
+            }
+
+            cts.Dispose();
+            _isRefreshing = false;
+            UpdateRefreshButtonState();
+        }
+    }
+
+    private async Task ApplySnapshotAsync(DailyNewsSnapshot snapshot, CancellationToken cancellationToken)
+    {
+        var items = snapshot.Items is null
+            ? []
+            : snapshot.Items.Take(2).ToArray();
+        _activeNewsItems = items;
+
+        var item1 = items.Length > 0 ? items[0] : null;
+        var item2 = items.Length > 1 ? items[1] : null;
+
+        UpdateHotHeadlineText(item1?.Title);
+        News2TitleTextBlock.Text = NormalizeCompactText(item2?.Title);
+
+        _newsUrls.Clear();
+        foreach (var item in items)
+        {
+            _newsUrls.Add(NormalizeHttpUrl(item.Url));
+        }
+
+        RenderExtraNewsRows([]);
+        UpdateNewsInteractionState();
+
+        StatusTextBlock.IsVisible = false;
+        UpdateAdaptiveLayout();
+
+        var loadTasks = new[]
+        {
+            TryDownloadBitmapAsync(item1?.ImageUrl, cancellationToken),
+            TryDownloadBitmapAsync(item2?.ImageUrl, cancellationToken)
+        };
+        var bitmaps = await Task.WhenAll(loadTasks);
+        if (cancellationToken.IsCancellationRequested || !_isAttached)
+        {
+            bitmaps[0]?.Dispose();
+            bitmaps[1]?.Dispose();
+            return;
+        }
+
+        SetNewsBitmap(0, bitmaps[0]);
+        SetNewsBitmap(1, bitmaps[1]);
+    }
+
+    private void ApplyLoadingState()
+    {
+        _activeNewsItems = [];
+        _newsUrls.Clear();
+        UpdateHotHeadlineText(L("cnrnews.widget.loading_title", "Loading headlines"));
+        News2TitleTextBlock.Text = L("cnrnews.widget.loading_subtitle", "Please wait");
+        StatusTextBlock.Text = L("cnrnews.widget.loading", "Loading...");
+        StatusTextBlock.IsVisible = true;
+        SetNewsBitmap(0, null);
+        SetNewsBitmap(1, null);
+        RenderExtraNewsRows([]);
+        UpdateNewsInteractionState();
+        UpdateAdaptiveLayout();
+    }
+
+    private void ApplyFailedState()
+    {
+        _activeNewsItems = [];
+        _newsUrls.Clear();
+        News1TitleTextBlock.Inlines = null;
+        News1TitleTextBlock.Text = L("cnrnews.widget.fallback_title", "CNR news is temporarily unavailable");
+        News2TitleTextBlock.Text = L("cnrnews.widget.fallback_subtitle", "Tap refresh and try again");
+        StatusTextBlock.Text = L("cnrnews.widget.fetch_failed", "News fetch failed");
+        StatusTextBlock.IsVisible = true;
+        SetNewsBitmap(0, null);
+        SetNewsBitmap(1, null);
+        RenderExtraNewsRows([]);
+        UpdateNewsInteractionState();
+        UpdateAdaptiveLayout();
+    }
+
+    private int ResolveDesiredNewsItemCount()
+    {
+        return 2;
+    }
+
+    private void UpdateHotHeadlineText(string? title)
+    {
+        var normalizedTitle = NormalizeCompactText(title);
+        var hotLabel = L("cnrnews.widget.hot_label", "Hot");
+        if (News1TitleTextBlock.Inlines is null)
+        {
+            News1TitleTextBlock.Text = $"{hotLabel} | {normalizedTitle}";
+            return;
+        }
+
+        News1TitleTextBlock.Inlines.Clear();
+        News1TitleTextBlock.Inlines.Add(new Run($"{hotLabel} | ")
+        {
+            Foreground = new SolidColorBrush(Color.Parse("#D6272E")),
+            FontWeight = FontWeight.SemiBold
+        });
+        News1TitleTextBlock.Inlines.Add(new Run(normalizedTitle)
+        {
+            Foreground = new SolidColorBrush(Color.Parse("#202327")),
+            FontWeight = FontWeight.SemiBold
+        });
+    }
+
+    private void RenderExtraNewsRows(IReadOnlyList<DailyNewsItemSnapshot> extraItems)
+    {
+        ClearExtraNewsRows();
+        if (extraItems.Count == 0)
+        {
+            ExtraNewsItemsPanel.IsVisible = false;
+            _renderedNewsCount = 2;
+            return;
+        }
+
+        for (var i = 0; i < extraItems.Count; i++)
+        {
+            var item = extraItems[i];
+            var itemIndex = i + 2;
+            var rowGrid = new Grid
+            {
+                ColumnSpacing = 12,
+                Tag = itemIndex,
+                Cursor = new Cursor(StandardCursorType.Hand),
+                IsHitTestVisible = true
+            };
+            rowGrid.ColumnDefinitions.Add(new ColumnDefinition(new GridLength(1, GridUnitType.Star)));
+            rowGrid.ColumnDefinitions.Add(new ColumnDefinition(GridLength.Auto));
+            rowGrid.PointerPressed += OnExtraNewsItemPointerPressed;
+
+            var textBlock = new TextBlock
+            {
+                Text = NormalizeCompactText(item.Title),
+                Foreground = new SolidColorBrush(Color.Parse("#202327")),
+                FontFamily = MiSansFontFamily,
+                FontWeight = FontWeight.SemiBold,
+                TextWrapping = TextWrapping.Wrap,
+                TextTrimming = TextTrimming.CharacterEllipsis,
+                MaxLines = 2,
+                VerticalAlignment = Avalonia.Layout.VerticalAlignment.Top,
+                IsHitTestVisible = false
+            };
+
+            var imageHost = new Border
+            {
+                Width = 160,
+                Height = 90,
+                CornerRadius = new CornerRadius(16),
+                ClipToBounds = true,
+                Background = new SolidColorBrush(Color.Parse("#E6E6E6")),
+                IsHitTestVisible = false
+            };
+            var image = new Image
+            {
+                Stretch = Stretch.UniformToFill,
+                IsHitTestVisible = false
+            };
+            imageHost.Child = image;
+            Grid.SetColumn(imageHost, 1);
+
+            rowGrid.Children.Add(textBlock);
+            rowGrid.Children.Add(imageHost);
+            ExtraNewsItemsPanel.Children.Add(rowGrid);
+            _extraNewsRows.Add(new ExtraNewsRowVisual(rowGrid, textBlock, imageHost, image, itemIndex));
+        }
+
+        ExtraNewsItemsPanel.IsVisible = true;
+        _renderedNewsCount = 2 + extraItems.Count;
+    }
+
+    private void ClearExtraNewsRows()
+    {
+        foreach (var row in _extraNewsRows)
+        {
+            row.RootGrid.PointerPressed -= OnExtraNewsItemPointerPressed;
+            if (ReferenceEquals(row.ImageControl.Source, row.Bitmap))
+            {
+                row.ImageControl.Source = null;
+            }
+
+            row.Bitmap?.Dispose();
+            row.Bitmap = null;
+        }
+
+        _extraNewsRows.Clear();
+        ExtraNewsItemsPanel.Children.Clear();
+    }
+
+    private void SetExtraNewsBitmap(int rowIndex, Bitmap? bitmap)
+    {
+        if (rowIndex < 0 || rowIndex >= _extraNewsRows.Count)
+        {
+            bitmap?.Dispose();
+            return;
+        }
+
+        var row = _extraNewsRows[rowIndex];
+        if (ReferenceEquals(row.ImageControl.Source, row.Bitmap))
+        {
+            row.ImageControl.Source = null;
+        }
+
+        row.Bitmap?.Dispose();
+        row.Bitmap = bitmap;
+        row.ImageControl.Source = bitmap;
+    }
+
+    private void UpdateAdaptiveLayout()
+    {
+        var scale = ResolveScale();
+        var totalWidth = Bounds.Width > 1 ? Bounds.Width : _currentCellSize * BaseWidthCells;
+
+        RootBorder.CornerRadius = new CornerRadius(Math.Clamp(34 * scale, 16, 52));
+        RootBorder.Padding = new Thickness(0);
+
+        CardBorder.CornerRadius = new CornerRadius(Math.Clamp(34 * scale, 16, 52));
+        CardBorder.Padding = new Thickness(
+            Math.Clamp(16 * scale, 8, 24),
+            Math.Clamp(14 * scale, 7, 22),
+            Math.Clamp(16 * scale, 8, 24),
+            Math.Clamp(14 * scale, 7, 22));
+
+        var headlineFont = Math.Clamp(24 * scale, 12, 34);
+        BrandPrimaryTextBlock.FontSize = headlineFont;
+        BrandSecondaryTextBlock.FontSize = headlineFont;
+
+        var refreshHeight = Math.Clamp(42 * scale, 24, 52);
+        var refreshWidth = Math.Clamp(116 * scale, 76, 152);
+        RefreshButton.Height = refreshHeight;
+        RefreshButton.Width = refreshWidth;
+        RefreshButton.CornerRadius = new CornerRadius(refreshHeight / 2d);
+        RefreshGlyphIcon.FontSize = Math.Clamp(19 * scale, 11, 24);
+        RefreshLabelTextBlock.FontSize = Math.Clamp(22 * scale, 11, 29);
+
+        var imageWidth = Math.Clamp(totalWidth * 0.20, 60, 170);
+        var imageHeight = Math.Clamp(imageWidth * 0.56, 38, 94);
+        News1ImageHost.Width = imageWidth;
+        News1ImageHost.Height = imageHeight;
+        News2ImageHost.Width = imageWidth;
+        News2ImageHost.Height = imageHeight;
+        News1ImageHost.CornerRadius = new CornerRadius(Math.Clamp(16 * scale, 8, 22));
+        News2ImageHost.CornerRadius = new CornerRadius(Math.Clamp(16 * scale, 8, 22));
+
+        var columnGap = Math.Clamp(12 * scale, 6, 18);
+        NewsItem1Grid.ColumnSpacing = columnGap;
+        NewsItem2Grid.ColumnSpacing = columnGap;
+        NewsItem1Grid.ColumnDefinitions[1].Width = new GridLength(imageWidth);
+        NewsItem2Grid.ColumnDefinitions[1].Width = new GridLength(imageWidth);
+
+        var availableTextWidth = Math.Max(
+            84,
+            totalWidth - imageWidth - columnGap - Math.Clamp(20 * scale, 10, 32));
+        News1TitleTextBlock.MaxWidth = availableTextWidth;
+        News2TitleTextBlock.MaxWidth = availableTextWidth;
+
+        var newsFont = Math.Clamp(21 * scale, 10.5, 28);
+        News1TitleTextBlock.FontSize = newsFont;
+        News2TitleTextBlock.FontSize = newsFont;
+        var mainNewsLineHeight = newsFont * 1.14;
+        News1TitleTextBlock.LineHeight = mainNewsLineHeight;
+        News2TitleTextBlock.LineHeight = mainNewsLineHeight;
+        var mainNewsMinHeight = mainNewsLineHeight * 2;
+        News1TitleTextBlock.MinHeight = mainNewsMinHeight;
+        News2TitleTextBlock.MinHeight = mainNewsMinHeight;
+        StatusTextBlock.FontSize = Math.Clamp(16 * scale, 9, 24);
+        News1TitleTextBlock.MaxLines = 2;
+        News2TitleTextBlock.MaxLines = 2;
+
+        foreach (var row in _extraNewsRows)
+        {
+            row.RootGrid.ColumnSpacing = columnGap;
+            if (row.RootGrid.ColumnDefinitions.Count > 1)
+            {
+                row.RootGrid.ColumnDefinitions[1].Width = new GridLength(imageWidth);
+            }
+
+            row.ImageHost.Width = imageWidth;
+            row.ImageHost.Height = imageHeight;
+            row.ImageHost.CornerRadius = new CornerRadius(Math.Clamp(16 * scale, 8, 22));
+
+            row.TitleTextBlock.MaxWidth = availableTextWidth;
+            row.TitleTextBlock.FontSize = Math.Clamp(19 * scale, 10, 25);
+            row.TitleTextBlock.LineHeight = row.TitleTextBlock.FontSize * 1.12;
+            row.TitleTextBlock.MinHeight = row.TitleTextBlock.LineHeight * 2;
+            row.TitleTextBlock.MaxLines = 2;
+        }
+
+        ExtraNewsItemsPanel.Spacing = Math.Clamp(6 * scale, 3, 10);
+    }
+
+    private void UpdateRefreshButtonState()
+    {
+        RefreshButton.IsEnabled = !_isRefreshing;
+        RefreshButton.Opacity = _isAttached ? 1.0 : 0.85;
+        RefreshGlyphIcon.Opacity = _isRefreshing ? 0.56 : 1.0;
+        RefreshLabelTextBlock.Opacity = _isRefreshing ? 0.56 : 1.0;
+    }
+
+    private void UpdateNewsInteractionState()
+    {
+        var item1Enabled = _newsUrls.Count > 0 && !string.IsNullOrWhiteSpace(_newsUrls[0]);
+        var item2Enabled = _newsUrls.Count > 1 && !string.IsNullOrWhiteSpace(_newsUrls[1]);
+
+        NewsItem1Grid.IsHitTestVisible = item1Enabled;
+        NewsItem2Grid.IsHitTestVisible = item2Enabled;
+        NewsItem1Grid.Opacity = item1Enabled ? 1.0 : 0.72;
+        NewsItem2Grid.Opacity = item2Enabled ? 1.0 : 0.72;
+
+        foreach (var row in _extraNewsRows)
+        {
+            var index = row.NewsIndex;
+            var enabled = index >= 0 && index < _newsUrls.Count && !string.IsNullOrWhiteSpace(_newsUrls[index]);
+            row.RootGrid.IsHitTestVisible = enabled;
+            row.RootGrid.Opacity = enabled ? 1.0 : 0.72;
+            row.RootGrid.Cursor = enabled
+                ? new Cursor(StandardCursorType.Hand)
+                : new Cursor(StandardCursorType.Arrow);
+        }
+    }
+
+    private static async Task<Bitmap?> TryDownloadBitmapAsync(string? imageUrl, CancellationToken cancellationToken)
+    {
+        var normalizedUrl = NormalizeHttpUrl(imageUrl);
+        if (string.IsNullOrWhiteSpace(normalizedUrl))
+        {
+            return null;
+        }
+
+        try
+        {
+            using var request = new HttpRequestMessage(HttpMethod.Get, normalizedUrl);
+            request.Headers.TryAddWithoutValidation("User-Agent", BrowserUserAgent);
+            request.Headers.TryAddWithoutValidation("Accept", "image/avif,image/webp,image/apng,image/*,*/*;q=0.8");
+            using var response = await ImageHttpClient.SendAsync(
+                request,
+                HttpCompletionOption.ResponseHeadersRead,
+                cancellationToken);
+            if (!response.IsSuccessStatusCode)
+            {
+                return null;
+            }
+
+            await using var stream = await response.Content.ReadAsStreamAsync(cancellationToken);
+            var memory = new MemoryStream();
+            await stream.CopyToAsync(memory, cancellationToken);
+            memory.Position = 0;
+            return new Bitmap(memory);
+        }
+        catch (OperationCanceledException)
+        {
+            throw;
+        }
+        catch
+        {
+            return null;
+        }
+    }
+
+    private void TryOpenNewsUrl(int index)
+    {
+        if (index < 0 || index >= _newsUrls.Count)
+        {
+            return;
+        }
+
+        var normalizedUrl = NormalizeHttpUrl(_newsUrls[index]);
+        if (string.IsNullOrWhiteSpace(normalizedUrl))
+        {
+            return;
+        }
+
+        try
+        {
+            var startInfo = new ProcessStartInfo
+            {
+                FileName = normalizedUrl,
+                UseShellExecute = true
+            };
+            Process.Start(startInfo);
+        }
+        catch
+        {
+            // Ignore malformed URLs or shell launch failures.
+        }
+    }
+
+    private static string? NormalizeHttpUrl(string? rawUrl)
+    {
+        if (string.IsNullOrWhiteSpace(rawUrl))
+        {
+            return null;
+        }
+
+        var candidate = rawUrl.Trim();
+        if (!Uri.TryCreate(candidate, UriKind.Absolute, out var uri))
+        {
+            return null;
+        }
+
+        if (!string.Equals(uri.Scheme, Uri.UriSchemeHttp, StringComparison.OrdinalIgnoreCase) &&
+            !string.Equals(uri.Scheme, Uri.UriSchemeHttps, StringComparison.OrdinalIgnoreCase))
+        {
+            return null;
+        }
+
+        return uri.ToString();
+    }
+
+    private void SetNewsBitmap(int index, Bitmap? bitmap)
+    {
+        if (index < 0 || index >= _newsBitmaps.Length)
+        {
+            bitmap?.Dispose();
+            return;
+        }
+
+        var imageControl = index == 0 ? News1Image : News2Image;
+        var oldBitmap = _newsBitmaps[index];
+        if (ReferenceEquals(imageControl.Source, oldBitmap))
+        {
+            imageControl.Source = null;
+        }
+
+        oldBitmap?.Dispose();
+        _newsBitmaps[index] = bitmap;
+        imageControl.Source = bitmap;
+    }
+
+    private void DisposeNewsBitmaps()
+    {
+        SetNewsBitmap(0, null);
+        SetNewsBitmap(1, null);
+    }
+
+    private void UpdateLanguageCode()
+    {
+        try
+        {
+            var snapshot = _appSettingsService.Load();
+            _languageCode = _localizationService.NormalizeLanguageCode(snapshot.LanguageCode);
+        }
+        catch
+        {
+            _languageCode = "zh-CN";
+        }
+    }
+
+    private void ApplyAutoRotateSettings()
+    {
+        var enabled = true;
+        var intervalMinutes = 60;
+
+        try
+        {
+            var snapshot = _componentSettingsService.Load();
+            enabled = snapshot.CnrDailyNewsAutoRotateEnabled;
+            intervalMinutes = NormalizeAutoRotateIntervalMinutes(snapshot.CnrDailyNewsAutoRotateIntervalMinutes);
+        }
+        catch
+        {
+            // Keep fallback defaults.
+        }
+
+        _autoRotateEnabled = enabled;
+        _refreshTimer.Interval = TimeSpan.FromMinutes(intervalMinutes);
+
+        if (!_isAttached)
+        {
+            return;
+        }
+
+        if (_autoRotateEnabled)
+        {
+            if (!_refreshTimer.IsEnabled)
+            {
+                _refreshTimer.Start();
+            }
+        }
+        else if (_refreshTimer.IsEnabled)
+        {
+            _refreshTimer.Stop();
+        }
+    }
+
+    private static int NormalizeAutoRotateIntervalMinutes(int minutes)
+    {
+        if (minutes <= 0)
+        {
+            return 60;
+        }
+
+        if (SupportedAutoRotateIntervalsMinutes.Contains(minutes))
+        {
+            return minutes;
+        }
+
+        return SupportedAutoRotateIntervalsMinutes
+            .OrderBy(value => Math.Abs(value - minutes))
+            .FirstOrDefault(60);
+    }
+
+    private void CancelRefreshRequest()
+    {
+        var cts = Interlocked.Exchange(ref _refreshCts, null);
+        if (cts is null)
+        {
+            return;
+        }
+
+        cts.Cancel();
+        cts.Dispose();
+    }
+
+    private string L(string key, string fallback)
+    {
+        return _localizationService.GetString(_languageCode, key, fallback);
+    }
+
+    private double ResolveScale()
+    {
+        var cellScale = Math.Clamp(_currentCellSize / BaseCellSize, 0.56, 2.0);
+        var widthScale = Bounds.Width > 1
+            ? Math.Clamp(Bounds.Width / Math.Max(1, _currentCellSize * BaseWidthCells), 0.56, 2.0)
+            : 1;
+        var heightScale = Bounds.Height > 1
+            ? Math.Clamp(Bounds.Height / Math.Max(1, _currentCellSize * BaseHeightCells), 0.56, 2.0)
+            : 1;
+        return Math.Clamp(Math.Min(cellScale, Math.Min(widthScale, heightScale)), 0.56, 2.0);
+    }
+
+    private static string NormalizeCompactText(string? text)
+    {
+        if (string.IsNullOrWhiteSpace(text))
+        {
+            return string.Empty;
+        }
+
+        return MultiWhitespaceRegex.Replace(text.Trim(), " ");
+    }
+}
+

LanMountainDesktop/Views/Components/DailyArtworkSettingsWindow.axaml

@@ -0,0 +1,54 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             mc:Ignorable="d"
+             d:DesignWidth="420"
+             d:DesignHeight="280"
+             x:Class="LanMountainDesktop.Views.Components.DailyArtworkSettingsWindow">
+    <Border Background="{DynamicResource AdaptiveBackgroundBrush}"
+            Padding="16">
+        <StackPanel Spacing="10">
+            <TextBlock x:Name="TitleTextBlock"
+                       Text="每日图片设置"
+                       FontSize="18"
+                       FontWeight="SemiBold"
+                       Foreground="{DynamicResource AdaptiveTextPrimaryBrush}" />
+
+            <TextBlock x:Name="DescriptionTextBlock"
+                       Text="切换每日图片的数据源。"
+                       FontSize="12"
+                       TextWrapping="Wrap"
+                       Foreground="{DynamicResource AdaptiveTextSecondaryBrush}" />
+
+            <Border Background="{DynamicResource AdaptiveSurfaceRaisedBrush}"
+                    BorderBrush="{DynamicResource AdaptiveButtonBorderBrush}"
+                    BorderThickness="1"
+                    CornerRadius="12"
+                    Padding="10">
+                <StackPanel Spacing="8">
+                    <TextBlock x:Name="MirrorSourceLabelTextBlock"
+                               Text="镜像源"
+                               Foreground="{DynamicResource AdaptiveTextPrimaryBrush}" />
+
+                    <ComboBox x:Name="MirrorSourceComboBox"
+                              Width="240"
+                              SelectionChanged="OnMirrorSourceSelectionChanged">
+                        <ComboBoxItem x:Name="MirrorSourceDomesticItem"
+                                      Tag="Domestic"
+                                      Content="国内镜像" />
+                        <ComboBoxItem x:Name="MirrorSourceOverseasItem"
+                                      Tag="Overseas"
+                                      Content="国外镜像" />
+                    </ComboBox>
+                </StackPanel>
+            </Border>
+
+            <TextBlock x:Name="StatusTextBlock"
+                       Text="当前源：国内镜像"
+                       FontSize="11"
+                       TextWrapping="Wrap"
+                       Foreground="{DynamicResource AdaptiveTextSecondaryBrush}" />
+        </StackPanel>
+    </Border>
+</UserControl>

LanMountainDesktop/Views/Components/DailyArtworkSettingsWindow.axaml.cs

@@ -0,0 +1,97 @@
+using System;
+using Avalonia.Controls;
+using Avalonia.Controls.Primitives;
+using Avalonia.Interactivity;
+using LanMountainDesktop.Models;
+using LanMountainDesktop.Services;
+
+namespace LanMountainDesktop.Views.Components;
+
+public partial class DailyArtworkSettingsWindow : UserControl
+{
+    private readonly AppSettingsService _appSettingsService = new();
+    private readonly ComponentSettingsService _componentSettingsService = new();
+    private readonly LocalizationService _localizationService = new();
+    private string _languageCode = "zh-CN";
+    private bool _suppressEvents;
+
+    public event EventHandler? SettingsChanged;
+
+    public DailyArtworkSettingsWindow()
+    {
+        InitializeComponent();
+        LoadState();
+        ApplyLocalization();
+    }
+
+    private void LoadState()
+    {
+        var appSnapshot = _appSettingsService.Load();
+        var componentSnapshot = _componentSettingsService.Load();
+        _languageCode = _localizationService.NormalizeLanguageCode(appSnapshot.LanguageCode);
+
+        var source = DailyArtworkMirrorSources.Normalize(componentSnapshot.DailyArtworkMirrorSource);
+        _suppressEvents = true;
+        MirrorSourceComboBox.SelectedIndex = string.Equals(source, DailyArtworkMirrorSources.Domestic, StringComparison.OrdinalIgnoreCase)
+            ? 0
+            : 1;
+        _suppressEvents = false;
+        UpdateSourceStatus(source);
+    }
+
+    private void ApplyLocalization()
+    {
+        TitleTextBlock.Text = L("artwork.settings.title", "每日图片设置");
+        DescriptionTextBlock.Text = L("artwork.settings.desc", "切换每日图片的数据源。");
+        MirrorSourceLabelTextBlock.Text = L("artwork.settings.source_label", "镜像源");
+        MirrorSourceDomesticItem.Content = L("artwork.settings.source_domestic", "国内镜像");
+        MirrorSourceOverseasItem.Content = L("artwork.settings.source_overseas", "国外镜像");
+        UpdateSourceStatus(GetSelectedSource());
+    }
+
+    private void OnMirrorSourceSelectionChanged(object? sender, SelectionChangedEventArgs e)
+    {
+        _ = sender;
+        _ = e;
+        if (_suppressEvents)
+        {
+            return;
+        }
+
+        var source = GetSelectedSource();
+        var snapshot = _componentSettingsService.Load();
+        snapshot.DailyArtworkMirrorSource = source;
+        _componentSettingsService.Save(snapshot);
+
+        UpdateSourceStatus(source);
+        SettingsChanged?.Invoke(this, EventArgs.Empty);
+    }
+
+    private string GetSelectedSource()
+    {
+        if (MirrorSourceComboBox.SelectedItem is ComboBoxItem comboBoxItem &&
+            comboBoxItem.Tag is string tagValue)
+        {
+            return DailyArtworkMirrorSources.Normalize(tagValue);
+        }
+
+        return DailyArtworkMirrorSources.Overseas;
+    }
+
+    private void UpdateSourceStatus(string source)
+    {
+        if (StatusTextBlock is null)
+        {
+            return;
+        }
+
+        StatusTextBlock.Text = string.Equals(source, DailyArtworkMirrorSources.Domestic, StringComparison.OrdinalIgnoreCase)
+            ? L("artwork.settings.source_status_domestic", "当前源：国内镜像（优先中国网络）")
+            : L("artwork.settings.source_status_overseas", "当前源：国外镜像（艺术馆推荐）");
+    }
+
+    private string L(string key, string fallback)
+    {
+        return _localizationService.GetString(_languageCode, key, fallback);
+    }
+}

LanMountainDesktop/Views/Components/DailyArtworkWidget.axaml

@@ -18,43 +18,32 @@
             <Border x:Name="ArtworkPanel"
                     Grid.Column="0"
                     ClipToBounds="True"
-                    Background="#B8AE9A">
+                    Background="#B8AE9A"
+                    PointerPressed="OnArtworkPanelPointerPressed">
                 <Grid>
                     <Image x:Name="ArtworkImage"
                            Stretch="UniformToFill" />
 
-                    <Border x:Name="ImageBottomShade"
-                            VerticalAlignment="Bottom"
-                            Height="132">
-                        <Border.Background>
-                            <LinearGradientBrush StartPoint="0,0"
-                                                 EndPoint="0,1">
-                                <GradientStop Color="#00000000"
-                                              Offset="0" />
-                                <GradientStop Color="#AF000000"
-                                              Offset="1" />
-                            </LinearGradientBrush>
-                        </Border.Background>
-                    </Border>
-
                     <StackPanel x:Name="DateInfoStack"
                                 VerticalAlignment="Bottom"
                                 HorizontalAlignment="Left"
-                                Margin="22,0,0,22"
+                                Margin="18,0,0,16"
                                 Spacing="2">
                         <TextBlock x:Name="DateTextBlock"
                                    Text="03/03"
                                    Foreground="#F9F9F9"
-                                   FontSize="52"
+                                   FontSize="44"
                                    FontWeight="Bold"
                                    FontFeatures="tnum"
-                                   LineHeight="54" />
+                                   TextTrimming="CharacterEllipsis"
+                                   LineHeight="46" />
                         <TextBlock x:Name="WeekdayTextBlock"
                                    Text="星期二"
                                    Foreground="#F9F9F9"
-                                   FontSize="52"
+                                   FontSize="44"
                                    FontWeight="Bold"
-                                   LineHeight="54" />
+                                   TextTrimming="CharacterEllipsis"
+                                   LineHeight="46" />
                     </StackPanel>
                 </Grid>
             </Border>
@@ -62,7 +51,8 @@
             <Border Grid.Column="1"
                     x:Name="InfoPanel"
                     Background="#111418"
-                    Padding="18,14,18,14">
+                    Padding="18,14,18,14"
+                    PointerPressed="OnInfoPanelPointerPressed">
                 <Grid>
                     <Canvas x:Name="BrickPatternCanvas"
                             IsHitTestVisible="False"
@@ -90,7 +80,8 @@
                                    FontSize="44"
                                    FontWeight="Bold"
                                    TextWrapping="Wrap"
-                                   MaxLines="2"
+                                   TextTrimming="CharacterEllipsis"
+                                   MaxLines="4"
                                    Margin="0,0,0,8" />
 
                         <Border x:Name="RightPanelSeparator"
@@ -110,15 +101,17 @@
                                        FontSize="26"
                                        FontWeight="SemiBold"
                                        TextWrapping="Wrap"
-                                       MaxLines="2" />
+                                       TextTrimming="CharacterEllipsis"
+                                       MaxLines="3" />
                             <TextBlock x:Name="YearTextBlock"
                                        Text="1754"
                                        Foreground="#D7DCE3"
                                        FontSize="22"
                                        FontWeight="Medium"
                                        FontFeatures="tnum"
-                                       TextWrapping="NoWrap"
-                                       MaxLines="1" />
+                                       TextWrapping="Wrap"
+                                       TextTrimming="CharacterEllipsis"
+                                       MaxLines="2" />
                         </StackPanel>
                     </Grid>
                 </Grid>

LanMountainDesktop/Views/Components/DailyArtworkWidget.axaml.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.Globalization;
 using System.IO;
 using System.Net.Http;
@@ -8,6 +9,7 @@ using System.Threading;
 using System.Threading.Tasks;
 using Avalonia;
 using Avalonia.Controls;
+using Avalonia.Input;
 using Avalonia.Media;
 using Avalonia.Media.Imaging;
 using Avalonia.Threading;
@@ -32,6 +34,9 @@ public partial class DailyArtworkWidget : UserControl, IDesktopComponentWidget,
 
     private static readonly Regex MultiWhitespaceRegex = new(@"\s+", RegexOptions.Compiled);
     private static readonly FontFamily MiSansFontFamily = new("MiSans VF, avares://LanMountainDesktop/Assets/Fonts#MiSans");
+    private static readonly FontWeight[] TitleWeightCandidates = new[] { FontWeight.Bold, FontWeight.SemiBold, FontWeight.Medium, FontWeight.Normal };
+    private static readonly FontWeight[] ArtistWeightCandidates = new[] { FontWeight.SemiBold, FontWeight.Medium, FontWeight.Normal };
+    private static readonly FontWeight[] SecondaryWeightCandidates = new[] { FontWeight.Medium, FontWeight.Normal, FontWeight.Light };
 
     private static readonly HttpClient ImageHttpClient = new()
     {
@@ -62,6 +67,8 @@ public partial class DailyArtworkWidget : UserControl, IDesktopComponentWidget,
     private double _currentCellSize = BaseCellSize;
     private bool _isAttached;
     private bool _isRefreshing;
+    private string? _currentArtworkSourceUrl;
+    private string? _currentArtworkImageUrl;
 
     public DailyArtworkWidget()
     {
@@ -98,13 +105,11 @@ public partial class DailyArtworkWidget : UserControl, IDesktopComponentWidget,
             Math.Clamp(14 * scale, 8, 22));
 
         DateInfoStack.Margin = new Thickness(
-            Math.Clamp(22 * scale, 10, 36),
+            Math.Clamp(18 * scale, 8, 30),
             0,
             0,
-            Math.Clamp(20 * scale, 10, 34));
-        DateInfoStack.Spacing = Math.Clamp(2 * scale, 1, 6);
-
-        ImageBottomShade.Height = Math.Clamp(132 * scale, 64, 182);
+            Math.Clamp(16 * scale, 8, 26));
+        DateInfoStack.Spacing = Math.Clamp(4 * scale, 2, 10);
 
         StatusTextBlock.FontSize = Math.Clamp(16 * scale, 10, 24);
 
@@ -122,6 +127,15 @@ public partial class DailyArtworkWidget : UserControl, IDesktopComponentWidget,
         }
     }
 
+    public void RefreshFromSettings()
+    {
+        _recommendationService.ClearCache();
+        if (_isAttached)
+        {
+            _ = RefreshArtworkAsync(forceRefresh: true);
+        }
+    }
+
     private void OnAttachedToVisualTree(object? sender, VisualTreeAttachmentEventArgs e)
     {
         _isAttached = true;
@@ -147,6 +161,28 @@ public partial class DailyArtworkWidget : UserControl, IDesktopComponentWidget,
         await RefreshArtworkAsync(forceRefresh: false);
     }
 
+    private void OnArtworkPanelPointerPressed(object? sender, PointerPressedEventArgs e)
+    {
+        if (!e.GetCurrentPoint(this).Properties.IsLeftButtonPressed)
+        {
+            return;
+        }
+
+        _ = RefreshArtworkAsync(forceRefresh: true);
+        e.Handled = true;
+    }
+
+    private void OnInfoPanelPointerPressed(object? sender, PointerPressedEventArgs e)
+    {
+        if (!e.GetCurrentPoint(this).Properties.IsLeftButtonPressed)
+        {
+            return;
+        }
+
+        TryOpenArtworkSourceUrl();
+        e.Handled = true;
+    }
+
     private async Task RefreshArtworkAsync(bool forceRefresh)
     {
         if (!_isAttached || _isRefreshing)
@@ -215,11 +251,13 @@ public partial class DailyArtworkWidget : UserControl, IDesktopComponentWidget,
         ArtistTextBlock.Text = NormalizeCompactText(artist);
 
         YearTextBlock.Text = ResolveYearText(snapshot);
+        _currentArtworkSourceUrl = snapshot.ArtworkUrl;
+        _currentArtworkImageUrl = snapshot.ImageUrl;
         StatusTextBlock.IsVisible = false;
 
         UpdateAdaptiveLayout();
 
-        var bitmap = await TryLoadArtworkBitmapAsync(snapshot.ImageUrl, cancellationToken);
+        var bitmap = await TryLoadArtworkBitmapAsync(snapshot.ImageUrl, snapshot.ThumbnailDataUrl, cancellationToken);
         if (cancellationToken.IsCancellationRequested || !_isAttached)
         {
             bitmap?.Dispose();
@@ -229,39 +267,124 @@ public partial class DailyArtworkWidget : UserControl, IDesktopComponentWidget,
         SetArtworkBitmap(bitmap);
     }
 
-    private static async Task<Bitmap?> TryLoadArtworkBitmapAsync(string? imageUrl, CancellationToken cancellationToken)
+    private static async Task<Bitmap?> TryLoadArtworkBitmapAsync(
+        string? imageUrl,
+        string? thumbnailDataUrl,
+        CancellationToken cancellationToken)
+    {
+        foreach (var candidateUrl in BuildImageUrlCandidates(imageUrl))
+        {
+            var remoteBitmap = await TryDownloadBitmapAsync(candidateUrl, cancellationToken);
+            if (remoteBitmap is not null)
+            {
+                return remoteBitmap;
+            }
+        }
+
+        return TryDecodeBitmapFromDataUrl(thumbnailDataUrl);
+    }
+
+    private static IEnumerable<string> BuildImageUrlCandidates(string? imageUrl)
     {
         if (string.IsNullOrWhiteSpace(imageUrl))
+        {
+            yield break;
+        }
+
+        var normalizedUrl = imageUrl.Trim();
+        yield return normalizedUrl;
+
+        const string preferredSizeSegment = "/full/843,/0/default.jpg";
+        if (normalizedUrl.Contains(preferredSizeSegment, StringComparison.OrdinalIgnoreCase))
+        {
+            yield return normalizedUrl.Replace(
+                preferredSizeSegment,
+                "/full/1024,/0/default.jpg",
+                StringComparison.OrdinalIgnoreCase);
+        }
+    }
+
+    private static async Task<Bitmap?> TryDownloadBitmapAsync(string imageUrl, CancellationToken cancellationToken)
+    {
+        var withReferrer = await SendImageRequestAsync(imageUrl, includeReferrer: true, cancellationToken);
+        if (withReferrer is not null)
+        {
+            return withReferrer;
+        }
+
+        return await SendImageRequestAsync(imageUrl, includeReferrer: false, cancellationToken);
+    }
+
+    private static async Task<Bitmap?> SendImageRequestAsync(
+        string imageUrl,
+        bool includeReferrer,
+        CancellationToken cancellationToken)
+    {
+        try
+        {
+            using var request = new HttpRequestMessage(HttpMethod.Get, imageUrl);
+            request.Headers.TryAddWithoutValidation("User-Agent", BrowserUserAgent);
+            request.Headers.TryAddWithoutValidation("Accept", "image/avif,image/webp,image/apng,image/*,*/*;q=0.8");
+            if (includeReferrer && Uri.TryCreate(imageUrl, UriKind.Absolute, out var imageUri))
+            {
+                request.Headers.Referrer = new Uri($"{imageUri.Scheme}://{imageUri.Host}/", UriKind.Absolute);
+            }
+
+            using var response = await ImageHttpClient.SendAsync(
+                request,
+                HttpCompletionOption.ResponseHeadersRead,
+                cancellationToken);
+            if (!response.IsSuccessStatusCode)
+            {
+                return null;
+            }
+
+            await using var stream = await response.Content.ReadAsStreamAsync(cancellationToken);
+            var memory = new MemoryStream();
+            await stream.CopyToAsync(memory, cancellationToken);
+            memory.Position = 0;
+            return new Bitmap(memory);
+        }
+        catch (OperationCanceledException)
+        {
+            throw;
+        }
+        catch
         {
             return null;
         }
+    }
 
-        using var request = new HttpRequestMessage(HttpMethod.Get, imageUrl.Trim());
-        request.Headers.TryAddWithoutValidation("User-Agent", BrowserUserAgent);
-        request.Headers.TryAddWithoutValidation("Accept", "image/avif,image/webp,image/apng,image/*,*/*;q=0.8");
-        if (Uri.TryCreate(imageUrl.Trim(), UriKind.Absolute, out var imageUri))
-        {
-            request.Headers.Referrer = new Uri($"{imageUri.Scheme}://{imageUri.Host}/", UriKind.Absolute);
-        }
-
-        using var response = await ImageHttpClient.SendAsync(
-            request,
-            HttpCompletionOption.ResponseHeadersRead,
-            cancellationToken);
-        if (!response.IsSuccessStatusCode)
+    private static Bitmap? TryDecodeBitmapFromDataUrl(string? dataUrl)
+    {
+        if (string.IsNullOrWhiteSpace(dataUrl))
         {
             return null;
         }
 
-        await using var stream = await response.Content.ReadAsStreamAsync(cancellationToken);
-        var memory = new MemoryStream();
-        await stream.CopyToAsync(memory, cancellationToken);
-        memory.Position = 0;
-        return new Bitmap(memory);
+        var trimmed = dataUrl.Trim();
+        var markerIndex = trimmed.IndexOf("base64,", StringComparison.OrdinalIgnoreCase);
+        if (markerIndex < 0 || markerIndex + 7 >= trimmed.Length)
+        {
+            return null;
+        }
+
+        var base64Payload = trimmed[(markerIndex + 7)..];
+        try
+        {
+            var bytes = Convert.FromBase64String(base64Payload);
+            return new Bitmap(new MemoryStream(bytes));
+        }
+        catch
+        {
+            return null;
+        }
     }
 
     private void ApplyLoadingState()
     {
+        _currentArtworkSourceUrl = null;
+        _currentArtworkImageUrl = null;
         StatusTextBlock.IsVisible = true;
         StatusTextBlock.Text = L("artwork.widget.loading", "Loading...");
         PaintingTitleTextBlock.Text = BuildQuotedTitle(L("artwork.widget.loading_title", "Daily Artwork"));
@@ -272,6 +395,8 @@ public partial class DailyArtworkWidget : UserControl, IDesktopComponentWidget,
 
     private void ApplyFailedState()
     {
+        _currentArtworkSourceUrl = null;
+        _currentArtworkImageUrl = null;
         StatusTextBlock.IsVisible = true;
         StatusTextBlock.Text = L("artwork.widget.fetch_failed", "Artwork fetch failed");
         PaintingTitleTextBlock.Text = BuildQuotedTitle(L("artwork.widget.fallback_title", "Daily Artwork"));
@@ -294,71 +419,137 @@ public partial class DailyArtworkWidget : UserControl, IDesktopComponentWidget,
         var rightContentWidth = Math.Max(58, rightPanelWidth - InfoPanel.Padding.Left - InfoPanel.Padding.Right);
         var leftPanelWidth = Math.Max(84, totalWidth - rightPanelWidth);
         var leftContentWidth = Math.Max(52, leftPanelWidth - DateInfoStack.Margin.Left - 10);
+        var leftContentHeight = Math.Max(30, totalHeight - DateInfoStack.Margin.Bottom - 10);
 
-        var dateBase = Math.Clamp(52 * scale, 18, 72);
+        var dateStackSpacing = Math.Clamp(4 * scale, 2, 10);
+        DateInfoStack.Spacing = dateStackSpacing;
+        DateInfoStack.MaxWidth = leftContentWidth;
+        var leftSingleLineHeight = Math.Max(12, (leftContentHeight - dateStackSpacing) / 2d);
+
+        var dateBase = Math.Clamp(44 * scale, 16, 62);
         DateTextBlock.FontSize = FitFontSize(
             DateTextBlock.Text,
             leftContentWidth,
-            Math.Max(22, totalHeight * 0.22),
+            leftSingleLineHeight,
             maxLines: 1,
-            minFontSize: Math.Max(14, dateBase * 0.70),
+            minFontSize: Math.Max(12, dateBase * 0.68),
             maxFontSize: dateBase,
             weight: FontWeight.Bold,
-            lineHeightFactor: 1.02);
-        DateTextBlock.LineHeight = DateTextBlock.FontSize * 1.02;
+            lineHeightFactor: 1.10);
+        DateTextBlock.LineHeight = DateTextBlock.FontSize * 1.10;
 
         WeekdayTextBlock.FontSize = FitFontSize(
             WeekdayTextBlock.Text,
             leftContentWidth,
-            Math.Max(22, totalHeight * 0.24),
+            leftSingleLineHeight,
             maxLines: 1,
-            minFontSize: Math.Max(14, dateBase * 0.70),
+            minFontSize: Math.Max(12, dateBase * 0.68),
             maxFontSize: dateBase,
             weight: FontWeight.Bold,
-            lineHeightFactor: 1.03);
-        WeekdayTextBlock.LineHeight = WeekdayTextBlock.FontSize * 1.03;
+            lineHeightFactor: 1.10);
+        WeekdayTextBlock.LineHeight = WeekdayTextBlock.FontSize * 1.10;
 
+        var rightContentHeight = Math.Max(42, totalHeight - InfoPanel.Padding.Top - InfoPanel.Padding.Bottom);
+        var titleBottomMargin = Math.Clamp(8 * scale, 4, 14);
+        var separatorBottomMargin = Math.Clamp(10 * scale, 4, 14);
+        var bottomStackSpacing = Math.Clamp(3 * scale, 2, 8);
+        var reservedHeight = titleBottomMargin + separatorBottomMargin + bottomStackSpacing + 3;
+        var textHeightBudget = Math.Max(24, rightContentHeight - reservedHeight);
         var titleBase = Math.Clamp(44 * scale, 16, 58);
-        PaintingTitleTextBlock.MaxWidth = rightContentWidth;
-        PaintingTitleTextBlock.FontSize = FitFontSize(
+        var artistBase = Math.Clamp(26 * scale, 11, 34);
+        var yearBase = Math.Clamp(22 * scale, 10, 30);
+        var titleMin = Math.Max(9.2, titleBase * 0.42);
+        var artistMin = Math.Max(8.4, artistBase * 0.50);
+        var yearMin = Math.Max(8.0, yearBase * 0.54);
+
+        var titleDemand = Math.Clamp(NormalizeCompactText(PaintingTitleTextBlock.Text).Length, 6, 96);
+        var artistDemand = Math.Clamp(NormalizeCompactText(ArtistTextBlock.Text).Length, 4, 72);
+        var yearDemand = Math.Clamp(NormalizeCompactText(YearTextBlock.Text).Length, 2, 48);
+
+        var minTitleHeight = Math.Max(10, titleMin * 1.10 * 2);
+        var minArtistHeight = Math.Max(8, artistMin * 1.14);
+        var minYearHeight = Math.Max(8, yearMin * 1.08);
+        var minTextHeightTotal = minTitleHeight + minArtistHeight + minYearHeight;
+
+        double titleHeightBudget;
+        double artistHeightBudget;
+        double yearHeightBudget;
+        if (textHeightBudget <= minTextHeightTotal + 0.6)
+        {
+            var compression = textHeightBudget / Math.Max(1, minTextHeightTotal);
+            titleHeightBudget = Math.Max(9, minTitleHeight * compression);
+            artistHeightBudget = Math.Max(7, minArtistHeight * compression);
+            yearHeightBudget = Math.Max(7, minYearHeight * compression);
+        }
+        else
+        {
+            var extraHeight = textHeightBudget - minTextHeightTotal;
+            var titleWeight = titleDemand + 8d;
+            var artistWeight = artistDemand + 4d;
+            var yearWeight = yearDemand + 2d;
+            var weightSum = Math.Max(1d, titleWeight + artistWeight + yearWeight);
+
+            titleHeightBudget = minTitleHeight + extraHeight * (titleWeight / weightSum);
+            artistHeightBudget = minArtistHeight + extraHeight * (artistWeight / weightSum);
+            yearHeightBudget = minYearHeight + extraHeight * (yearWeight / weightSum);
+        }
+
+        var titleLayout = FitAdaptiveTextLayout(
             PaintingTitleTextBlock.Text,
             rightContentWidth,
-            Math.Max(20, totalHeight * 0.34),
-            maxLines: 2,
-            minFontSize: Math.Max(12, titleBase * 0.62),
+            titleHeightBudget,
+            minLines: 2,
+            maxLines: 5,
+            minFontSize: titleMin,
             maxFontSize: titleBase,
-            weight: FontWeight.Bold,
-            lineHeightFactor: 1.08);
-        PaintingTitleTextBlock.LineHeight = PaintingTitleTextBlock.FontSize * 1.08;
+            weightCandidates: TitleWeightCandidates,
+            lineHeightFactor: 1.10);
+        PaintingTitleTextBlock.MaxWidth = rightContentWidth;
+        PaintingTitleTextBlock.Margin = new Thickness(0, 0, 0, titleBottomMargin);
+        PaintingTitleTextBlock.MaxLines = titleLayout.MaxLines;
+        PaintingTitleTextBlock.FontWeight = titleLayout.Weight;
+        PaintingTitleTextBlock.FontSize = titleLayout.FontSize;
+        PaintingTitleTextBlock.LineHeight = titleLayout.LineHeight;
 
-        var artistBase = Math.Clamp(26 * scale, 11, 34);
-        ArtistTextBlock.MaxWidth = rightContentWidth;
-        ArtistTextBlock.FontSize = FitFontSize(
+        if (ArtistTextBlock.Parent is StackPanel artistInfoStack)
+        {
+            artistInfoStack.Spacing = bottomStackSpacing;
+        }
+
+        var artistLayout = FitAdaptiveTextLayout(
             ArtistTextBlock.Text,
             rightContentWidth,
-            Math.Max(18, totalHeight * 0.24),
-            maxLines: 2,
-            minFontSize: Math.Max(10, artistBase * 0.72),
+            artistHeightBudget,
+            minLines: 1,
+            maxLines: 4,
+            minFontSize: artistMin,
             maxFontSize: artistBase,
-            weight: FontWeight.SemiBold,
-            lineHeightFactor: 1.12);
-        ArtistTextBlock.LineHeight = ArtistTextBlock.FontSize * 1.12;
+            weightCandidates: ArtistWeightCandidates,
+            lineHeightFactor: 1.14);
+        ArtistTextBlock.MaxWidth = rightContentWidth;
+        ArtistTextBlock.MaxLines = artistLayout.MaxLines;
+        ArtistTextBlock.FontWeight = artistLayout.Weight;
+        ArtistTextBlock.FontSize = artistLayout.FontSize;
+        ArtistTextBlock.LineHeight = artistLayout.LineHeight;
 
-        var yearBase = Math.Clamp(22 * scale, 10, 30);
-        YearTextBlock.MaxWidth = rightContentWidth;
-        YearTextBlock.FontSize = FitFontSize(
+        var yearLayout = FitAdaptiveTextLayout(
             YearTextBlock.Text,
             rightContentWidth,
-            Math.Max(14, totalHeight * 0.12),
-            maxLines: 1,
-            minFontSize: Math.Max(9.5, yearBase * 0.78),
+            yearHeightBudget,
+            minLines: 1,
+            maxLines: 3,
+            minFontSize: yearMin,
             maxFontSize: yearBase,
-            weight: FontWeight.Medium,
-            lineHeightFactor: 1.04);
-        YearTextBlock.LineHeight = YearTextBlock.FontSize * 1.04;
+            weightCandidates: SecondaryWeightCandidates,
+            lineHeightFactor: 1.08);
+        YearTextBlock.MaxWidth = rightContentWidth;
+        YearTextBlock.MaxLines = yearLayout.MaxLines;
+        YearTextBlock.FontWeight = yearLayout.Weight;
+        YearTextBlock.FontSize = yearLayout.FontSize;
+        YearTextBlock.LineHeight = yearLayout.LineHeight;
 
         RightPanelSeparator.Width = Math.Clamp(rightContentWidth * 0.58, 42, 136);
-        RightPanelSeparator.Margin = new Thickness(0, 0, 0, Math.Clamp(10 * scale, 4, 14));
+        RightPanelSeparator.Margin = new Thickness(0, 0, 0, separatorBottomMargin);
 
         BrickPatternCanvas.Opacity = totalWidth < _currentCellSize * 4.2
             ? 0.34
@@ -388,6 +579,54 @@ public partial class DailyArtworkWidget : UserControl, IDesktopComponentWidget,
         _currentArtworkBitmap = null;
     }
 
+    private void TryOpenArtworkSourceUrl()
+    {
+        var candidate = _currentArtworkSourceUrl;
+        if (!TryNormalizeHttpUrl(candidate, out var normalizedUrl) &&
+            !TryNormalizeHttpUrl(_currentArtworkImageUrl, out normalizedUrl))
+        {
+            return;
+        }
+
+        try
+        {
+            var startInfo = new ProcessStartInfo
+            {
+                FileName = normalizedUrl,
+                UseShellExecute = true
+            };
+            Process.Start(startInfo);
+        }
+        catch
+        {
+            // Ignore malformed URLs or shell launch failures.
+        }
+    }
+
+    private static bool TryNormalizeHttpUrl(string? rawUrl, out string normalizedUrl)
+    {
+        normalizedUrl = string.Empty;
+        if (string.IsNullOrWhiteSpace(rawUrl))
+        {
+            return false;
+        }
+
+        var candidate = rawUrl.Trim();
+        if (!Uri.TryCreate(candidate, UriKind.Absolute, out var uri))
+        {
+            return false;
+        }
+
+        if (!string.Equals(uri.Scheme, Uri.UriSchemeHttp, StringComparison.OrdinalIgnoreCase) &&
+            !string.Equals(uri.Scheme, Uri.UriSchemeHttps, StringComparison.OrdinalIgnoreCase))
+        {
+            return false;
+        }
+
+        normalizedUrl = uri.ToString();
+        return true;
+    }
+
     private void UpdateLanguageCode()
     {
         try
@@ -533,6 +772,170 @@ public partial class DailyArtworkWidget : UserControl, IDesktopComponentWidget,
         return best;
     }
 
+    private static AdaptiveTextLayout FitAdaptiveTextLayout(
+        string? text,
+        double maxWidth,
+        double maxHeight,
+        int minLines,
+        int maxLines,
+        double minFontSize,
+        double maxFontSize,
+        FontWeight[] weightCandidates,
+        double lineHeightFactor)
+    {
+        var content = string.IsNullOrWhiteSpace(text) ? " " : text.Trim();
+        var safeMinLines = Math.Max(1, minLines);
+        var safeMaxLines = Math.Max(safeMinLines, maxLines);
+        var linesByHeight = ResolveMaxLinesByHeight(maxHeight, minFontSize, lineHeightFactor, safeMinLines, safeMaxLines);
+
+        var candidates = weightCandidates is { Length: > 0 }
+            ? weightCandidates
+            : new[] { FontWeight.Normal };
+
+        AdaptiveTextLayout? best = null;
+        foreach (var weight in candidates)
+        {
+            for (var lineLimit = linesByHeight; lineLimit >= safeMinLines; lineLimit--)
+            {
+                var fontSize = FitFontSize(
+                    content,
+                    maxWidth,
+                    maxHeight,
+                    lineLimit,
+                    minFontSize,
+                    maxFontSize,
+                    weight,
+                    lineHeightFactor);
+                var lineHeight = fontSize * lineHeightFactor;
+                var measuredSize = MeasureTextSize(content, fontSize, weight, Math.Max(1, maxWidth), lineHeight);
+                var measuredLineCount = ResolveLineCount(measuredSize.Height, lineHeight);
+                var overflowLines = Math.Max(0, measuredLineCount - lineLimit);
+                var overflowHeight = Math.Max(0, measuredSize.Height - maxHeight);
+                var overflowScore = overflowLines * 1000d + overflowHeight;
+                var fitsCompletely = overflowLines == 0 && overflowHeight <= 0.6;
+                var candidate = new AdaptiveTextLayout(fontSize, weight, lineLimit, lineHeight, overflowScore, fitsCompletely);
+
+                if (best is null || IsBetterAdaptiveTextCandidate(candidate, best.Value))
+                {
+                    best = candidate;
+                }
+            }
+        }
+
+        if (best is not null)
+        {
+            return best.Value;
+        }
+
+        var fallbackFontSize = Math.Max(6, minFontSize);
+        return new AdaptiveTextLayout(
+            fallbackFontSize,
+            FontWeight.Normal,
+            safeMinLines,
+            fallbackFontSize * lineHeightFactor,
+            double.MaxValue,
+            fitsCompletely: false);
+    }
+
+    private static bool IsBetterAdaptiveTextCandidate(AdaptiveTextLayout candidate, AdaptiveTextLayout best)
+    {
+        if (candidate.FitsCompletely && !best.FitsCompletely)
+        {
+            return true;
+        }
+
+        if (!candidate.FitsCompletely && best.FitsCompletely)
+        {
+            return false;
+        }
+
+        if (candidate.FitsCompletely && best.FitsCompletely)
+        {
+            if (candidate.FontSize > best.FontSize + 0.12)
+            {
+                return true;
+            }
+
+            if (Math.Abs(candidate.FontSize - best.FontSize) <= 0.12 && candidate.MaxLines < best.MaxLines)
+            {
+                return true;
+            }
+
+            return false;
+        }
+
+        if (candidate.OverflowScore < best.OverflowScore - 0.2)
+        {
+            return true;
+        }
+
+        if (Math.Abs(candidate.OverflowScore - best.OverflowScore) <= 0.2 &&
+            candidate.FontSize > best.FontSize + 0.12)
+        {
+            return true;
+        }
+
+        if (Math.Abs(candidate.OverflowScore - best.OverflowScore) <= 0.2 &&
+            Math.Abs(candidate.FontSize - best.FontSize) <= 0.12 &&
+            candidate.MaxLines > best.MaxLines)
+        {
+            return true;
+        }
+
+        return false;
+    }
+
+    private static int ResolveMaxLinesByHeight(
+        double maxHeight,
+        double minFontSize,
+        double lineHeightFactor,
+        int minLines,
+        int maxLines)
+    {
+        var safeMinLines = Math.Max(1, minLines);
+        var safeMaxLines = Math.Max(safeMinLines, maxLines);
+        var lineHeight = Math.Max(1, Math.Max(6, minFontSize) * lineHeightFactor);
+        var maxHeightWithTolerance = Math.Max(1, maxHeight + 0.6);
+        var linesByHeight = (int)Math.Floor(maxHeightWithTolerance / lineHeight);
+        return Math.Clamp(linesByHeight, safeMinLines, safeMaxLines);
+    }
+
+    private static int ResolveLineCount(double measuredHeight, double lineHeight)
+    {
+        return Math.Max(1, (int)Math.Ceiling(measuredHeight / Math.Max(1, lineHeight)));
+    }
+
+    private readonly struct AdaptiveTextLayout
+    {
+        public AdaptiveTextLayout(
+            double fontSize,
+            FontWeight weight,
+            int maxLines,
+            double lineHeight,
+            double overflowScore,
+            bool fitsCompletely)
+        {
+            FontSize = fontSize;
+            Weight = weight;
+            MaxLines = Math.Max(1, maxLines);
+            LineHeight = lineHeight;
+            OverflowScore = overflowScore;
+            FitsCompletely = fitsCompletely;
+        }
+
+        public double FontSize { get; }
+
+        public FontWeight Weight { get; }
+
+        public int MaxLines { get; }
+
+        public double LineHeight { get; }
+
+        public double OverflowScore { get; }
+
+        public bool FitsCompletely { get; }
+    }
+
     private static Size MeasureTextSize(string text, double fontSize, FontWeight weight, double maxWidth, double lineHeight)
     {
         var probe = new TextBlock

LanMountainDesktop/Views/Components/DailyWord2x2Widget.axaml

@@ -0,0 +1,89 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             xmlns:fi="using:FluentIcons.Avalonia"
+             mc:Ignorable="d"
+             d:DesignWidth="220"
+             d:DesignHeight="220"
+             x:Class="LanMountainDesktop.Views.Components.DailyWord2x2Widget">
+
+    <Border x:Name="RootBorder"
+            CornerRadius="30"
+            Background="Transparent"
+            ClipToBounds="True"
+            BorderThickness="0"
+            Padding="0">
+        <Grid>
+            <Border x:Name="CardBorder"
+                    Background="#FCFBFA"
+                    CornerRadius="30"
+                    BorderBrush="Transparent"
+                    BorderThickness="0"
+                    Padding="12,11,12,11"
+                    PointerPressed="OnCardPointerPressed">
+                <Grid RowDefinitions="Auto,*"
+                      RowSpacing="8">
+                    <Grid ColumnDefinitions="*,Auto"
+                          ColumnSpacing="6">
+                        <TextBlock x:Name="WordTextBlock"
+                                   Text="design"
+                                   Foreground="#2B2F35"
+                                   FontSize="38"
+                                   FontWeight="Bold"
+                                   MaxLines="1"
+                                   TextTrimming="CharacterEllipsis"
+                                   VerticalAlignment="Center" />
+
+                        <Button x:Name="RefreshButton"
+                                Grid.Column="1"
+                                Width="30"
+                                Height="30"
+                                CornerRadius="15"
+                                Background="#EEF1F4"
+                                BorderBrush="Transparent"
+                                BorderThickness="0"
+                                Padding="0"
+                                Focusable="False"
+                                Click="OnRefreshButtonClick">
+                            <fi:SymbolIcon x:Name="RefreshIcon"
+                                           Symbol="ArrowClockwise"
+                                           IconVariant="Regular"
+                                           FontSize="14"
+                                           Foreground="#5E6671" />
+                        </Button>
+                    </Grid>
+
+                    <Grid Grid.Row="1">
+                        <TextBlock x:Name="MeaningTextBlock"
+                                   Text="n. design; plan; layout"
+                                   Foreground="#5A6069"
+                                   FontSize="18"
+                                   FontWeight="SemiBold"
+                                   TextWrapping="Wrap"
+                                   TextTrimming="CharacterEllipsis"
+                                   MaxLines="5"
+                                   IsVisible="False" />
+
+                        <TextBlock x:Name="HiddenHintTextBlock"
+                                   Text="Tap to reveal meaning"
+                                   Foreground="#8A9099"
+                                   FontSize="18"
+                                   FontWeight="SemiBold"
+                                   TextWrapping="Wrap"
+                                   TextTrimming="CharacterEllipsis"
+                                   MaxLines="4" />
+                    </Grid>
+                </Grid>
+            </Border>
+
+            <TextBlock x:Name="StatusTextBlock"
+                       IsVisible="False"
+                       Text="Loading..."
+                       Foreground="#6A6F77"
+                       FontSize="14"
+                       HorizontalAlignment="Center"
+                       VerticalAlignment="Center" />
+        </Grid>
+    </Border>
+</UserControl>

LanMountainDesktop/Views/Components/DailyWord2x2Widget.axaml.cs

@@ -0,0 +1,507 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text.RegularExpressions;
+using System.Threading;
+using System.Threading.Tasks;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Input;
+using Avalonia.Interactivity;
+using Avalonia.Media;
+using Avalonia.VisualTree;
+using Avalonia.Threading;
+using LanMountainDesktop.Models;
+using LanMountainDesktop.Services;
+
+namespace LanMountainDesktop.Views.Components;
+
+public partial class DailyWord2x2Widget : UserControl, IDesktopComponentWidget, IRecommendationInfoAwareComponentWidget
+{
+    private static readonly Regex MultiWhitespaceRegex = new(@"\s+", RegexOptions.Compiled);
+    private static readonly FontFamily MiSansFontFamily = new("MiSans VF, avares://LanMountainDesktop/Assets/Fonts#MiSans");
+    private static readonly IRecommendationInfoService DefaultRecommendationService = new RecommendationDataService();
+
+    private const double BaseCellSize = 48d;
+    private const int BaseWidthCells = 2;
+    private const int BaseHeightCells = 2;
+    private static readonly IReadOnlyList<int> SupportedAutoRefreshIntervalsMinutes = RefreshIntervalCatalog.SupportedIntervalsMinutes;
+
+    private readonly DispatcherTimer _refreshTimer = new()
+    {
+        Interval = TimeSpan.FromHours(6)
+    };
+
+    private readonly AppSettingsService _appSettingsService = new();
+    private readonly ComponentSettingsService _componentSettingsService = new();
+    private readonly LocalizationService _localizationService = new();
+
+    private IRecommendationInfoService _recommendationService = DefaultRecommendationService;
+    private CancellationTokenSource? _refreshCts;
+    private DailyWordSnapshot? _latestSnapshot;
+    private string _languageCode = "zh-CN";
+    private double _currentCellSize = BaseCellSize;
+    private bool _isAttached;
+    private bool _isRefreshing;
+    private bool _autoRefreshEnabled = true;
+    private bool _isMeaningVisible;
+
+    public DailyWord2x2Widget()
+    {
+        InitializeComponent();
+
+        WordTextBlock.FontFamily = MiSansFontFamily;
+        MeaningTextBlock.FontFamily = MiSansFontFamily;
+        HiddenHintTextBlock.FontFamily = MiSansFontFamily;
+        StatusTextBlock.FontFamily = MiSansFontFamily;
+
+        _refreshTimer.Tick += OnRefreshTimerTick;
+        AttachedToVisualTree += OnAttachedToVisualTree;
+        DetachedFromVisualTree += OnDetachedFromVisualTree;
+        SizeChanged += OnSizeChanged;
+
+        ApplyCellSize(_currentCellSize);
+        UpdateLanguageCode();
+        ApplyAutoRefreshSettings();
+        ApplyLoadingState();
+        UpdateRefreshButtonState();
+    }
+
+    public void ApplyCellSize(double cellSize)
+    {
+        _currentCellSize = Math.Max(1, cellSize);
+        UpdateAdaptiveLayout();
+    }
+
+    public void SetRecommendationInfoService(IRecommendationInfoService recommendationInfoService)
+    {
+        _recommendationService = recommendationInfoService ?? DefaultRecommendationService;
+        if (_isAttached)
+        {
+            _ = RefreshWordAsync(forceRefresh: false);
+        }
+    }
+
+    public void RefreshFromSettings()
+    {
+        _recommendationService.ClearCache();
+        ApplyAutoRefreshSettings();
+        if (_isAttached)
+        {
+            _ = RefreshWordAsync(forceRefresh: true);
+        }
+    }
+
+    private void OnAttachedToVisualTree(object? sender, VisualTreeAttachmentEventArgs e)
+    {
+        _isAttached = true;
+        ApplyAutoRefreshSettings();
+        UpdateRefreshButtonState();
+        _ = RefreshWordAsync(forceRefresh: false);
+    }
+
+    private void OnDetachedFromVisualTree(object? sender, VisualTreeAttachmentEventArgs e)
+    {
+        _isAttached = false;
+        _refreshTimer.Stop();
+        CancelRefreshRequest();
+        UpdateRefreshButtonState();
+    }
+
+    private void OnSizeChanged(object? sender, SizeChangedEventArgs e)
+    {
+        ApplyCellSize(_currentCellSize);
+    }
+
+    private async void OnRefreshButtonClick(object? sender, RoutedEventArgs e)
+    {
+        if (_isRefreshing)
+        {
+            return;
+        }
+
+        await RefreshWordAsync(forceRefresh: true);
+        e.Handled = true;
+    }
+
+    private async void OnRefreshTimerTick(object? sender, EventArgs e)
+    {
+        await RefreshWordAsync(forceRefresh: false);
+    }
+
+    private void OnCardPointerPressed(object? sender, PointerPressedEventArgs e)
+    {
+        if (_latestSnapshot is null || !e.GetCurrentPoint(this).Properties.IsLeftButtonPressed)
+        {
+            return;
+        }
+
+        if (e.Source is Visual sourceVisual)
+        {
+            for (Visual? current = sourceVisual; current is not null; current = current.GetVisualParent())
+            {
+                if (ReferenceEquals(current, RefreshButton))
+                {
+                    return;
+                }
+            }
+        }
+
+        _isMeaningVisible = !_isMeaningVisible;
+        UpdateRevealState();
+        UpdateAdaptiveLayout();
+        e.Handled = true;
+    }
+
+    private async Task RefreshWordAsync(bool forceRefresh)
+    {
+        if (!_isAttached || _isRefreshing)
+        {
+            return;
+        }
+
+        _isRefreshing = true;
+        UpdateRefreshButtonState();
+        UpdateLanguageCode();
+
+        var cts = new CancellationTokenSource();
+        var previous = Interlocked.Exchange(ref _refreshCts, cts);
+        previous?.Cancel();
+        previous?.Dispose();
+
+        try
+        {
+            var query = new DailyWordQuery(
+                Locale: _languageCode,
+                ForceRefresh: forceRefresh);
+            var result = await _recommendationService.GetDailyWordAsync(query, cts.Token);
+            if (!_isAttached || cts.IsCancellationRequested)
+            {
+                return;
+            }
+
+            if (!result.Success || result.Data is null)
+            {
+                ApplyFailedState();
+                return;
+            }
+
+            ApplySnapshot(result.Data);
+        }
+        catch (OperationCanceledException)
+        {
+            // Ignore canceled requests.
+        }
+        catch
+        {
+            if (_isAttached && !cts.IsCancellationRequested)
+            {
+                ApplyFailedState();
+            }
+        }
+        finally
+        {
+            if (ReferenceEquals(_refreshCts, cts))
+            {
+                _refreshCts = null;
+            }
+
+            cts.Dispose();
+            _isRefreshing = false;
+            UpdateRefreshButtonState();
+        }
+    }
+
+    private void ApplySnapshot(DailyWordSnapshot snapshot)
+    {
+        _latestSnapshot = snapshot;
+        WordTextBlock.Text = NormalizeCompactText(snapshot.Word);
+        MeaningTextBlock.Text = BuildMeaningPreview(snapshot.Meaning);
+        HiddenHintTextBlock.Text = L("dailyword2x2.widget.tap_to_show", "Tap to reveal meaning");
+        StatusTextBlock.IsVisible = false;
+
+        UpdateRevealState();
+        UpdateAdaptiveLayout();
+    }
+
+    private void ApplyLoadingState()
+    {
+        _latestSnapshot = null;
+        _isMeaningVisible = false;
+        WordTextBlock.Text = L("dailyword.widget.loading_word", "daily word");
+        MeaningTextBlock.Text = L("dailyword.widget.loading_meaning", "Fetching meaning...");
+        HiddenHintTextBlock.Text = L("dailyword.widget.loading", "Loading...");
+        StatusTextBlock.Text = L("dailyword.widget.loading", "Loading...");
+        StatusTextBlock.IsVisible = true;
+        UpdateRevealState();
+        UpdateAdaptiveLayout();
+    }
+
+    private void ApplyFailedState()
+    {
+        _latestSnapshot = null;
+        _isMeaningVisible = false;
+        WordTextBlock.Text = L("dailyword.widget.fallback_word", "daily word");
+        MeaningTextBlock.Text = L("dailyword.widget.fallback_meaning", "Youdao dictionary is temporarily unavailable.");
+        HiddenHintTextBlock.Text = L("dailyword.widget.fetch_failed", "Daily word fetch failed");
+        StatusTextBlock.Text = L("dailyword.widget.fetch_failed", "Daily word fetch failed");
+        StatusTextBlock.IsVisible = true;
+        UpdateRevealState();
+        UpdateAdaptiveLayout();
+    }
+
+    private void UpdateRevealState()
+    {
+        var canShowMeaning = _latestSnapshot is not null && !string.IsNullOrWhiteSpace(MeaningTextBlock.Text);
+        var showMeaning = _isMeaningVisible && canShowMeaning;
+        MeaningTextBlock.IsVisible = showMeaning;
+        HiddenHintTextBlock.IsVisible = !showMeaning;
+
+        if (!showMeaning && _latestSnapshot is not null)
+        {
+            HiddenHintTextBlock.Text = L("dailyword2x2.widget.tap_to_show", "Tap to reveal meaning");
+        }
+    }
+
+    private void UpdateAdaptiveLayout()
+    {
+        var scale = ResolveScale();
+        var totalWidth = Bounds.Width > 1 ? Bounds.Width : _currentCellSize * BaseWidthCells;
+        var totalHeight = Bounds.Height > 1 ? Bounds.Height : _currentCellSize * BaseHeightCells;
+
+        RootBorder.CornerRadius = new CornerRadius(Math.Clamp(30 * scale, 14, 40));
+        CardBorder.CornerRadius = RootBorder.CornerRadius;
+        CardBorder.Padding = new Thickness(
+            Math.Clamp(12 * scale, 8, 18),
+            Math.Clamp(11 * scale, 7, 16),
+            Math.Clamp(12 * scale, 8, 18),
+            Math.Clamp(11 * scale, 7, 16));
+
+        var refreshSize = Math.Clamp(30 * scale, 20, 38);
+        RefreshButton.Width = refreshSize;
+        RefreshButton.Height = refreshSize;
+        RefreshButton.CornerRadius = new CornerRadius(refreshSize / 2d);
+        RefreshIcon.FontSize = Math.Clamp(14 * scale, 10, 20);
+
+        var contentWidth = Math.Max(80, totalWidth - CardBorder.Padding.Left - CardBorder.Padding.Right);
+        var wordWidth = Math.Max(48, contentWidth - refreshSize - Math.Clamp(6 * scale, 4, 10));
+        WordTextBlock.MaxWidth = wordWidth;
+
+        var contentHeight = Math.Max(52, totalHeight - CardBorder.Padding.Top - CardBorder.Padding.Bottom);
+        var wordHeightBudget = Math.Max(18, contentHeight * 0.34);
+        var detailHeightBudget = Math.Max(18, contentHeight - wordHeightBudget - Math.Clamp(8 * scale, 4, 14));
+
+        WordTextBlock.FontSize = FitFontSize(
+            WordTextBlock.Text,
+            wordWidth,
+            wordHeightBudget,
+            maxLines: 1,
+            minFontSize: Math.Clamp(18 * scale, 12, 22),
+            maxFontSize: Math.Clamp(38 * scale, 20, 50),
+            weight: FontWeight.Bold,
+            lineHeightFactor: 1.02);
+        WordTextBlock.LineHeight = WordTextBlock.FontSize * 1.02;
+
+        var detailFont = FitFontSize(
+            MeaningTextBlock.IsVisible ? MeaningTextBlock.Text : HiddenHintTextBlock.Text,
+            contentWidth,
+            detailHeightBudget,
+            maxLines: MeaningTextBlock.IsVisible ? 5 : 4,
+            minFontSize: Math.Clamp(12 * scale, 9, 14),
+            maxFontSize: Math.Clamp(18 * scale, 12, 22),
+            weight: FontWeight.SemiBold,
+            lineHeightFactor: 1.10);
+
+        MeaningTextBlock.MaxWidth = contentWidth;
+        MeaningTextBlock.FontSize = detailFont;
+        MeaningTextBlock.LineHeight = detailFont * 1.10;
+        MeaningTextBlock.MaxLines = totalHeight < _currentCellSize * 1.8 ? 4 : 5;
+
+        HiddenHintTextBlock.MaxWidth = contentWidth;
+        HiddenHintTextBlock.FontSize = detailFont;
+        HiddenHintTextBlock.LineHeight = detailFont * 1.10;
+        HiddenHintTextBlock.MaxLines = totalHeight < _currentCellSize * 1.8 ? 3 : 4;
+
+        StatusTextBlock.FontSize = Math.Clamp(14 * scale, 9, 18);
+    }
+
+    private void UpdateRefreshButtonState()
+    {
+        RefreshButton.IsEnabled = !_isRefreshing;
+        RefreshButton.Opacity = _isRefreshing ? 0.60 : 1.0;
+        RefreshIcon.Opacity = _isRefreshing ? 0.60 : 1.0;
+    }
+
+    private void UpdateLanguageCode()
+    {
+        try
+        {
+            var snapshot = _appSettingsService.Load();
+            _languageCode = _localizationService.NormalizeLanguageCode(snapshot.LanguageCode);
+        }
+        catch
+        {
+            _languageCode = "zh-CN";
+        }
+    }
+
+    private void ApplyAutoRefreshSettings()
+    {
+        var enabled = true;
+        var intervalMinutes = 360;
+
+        try
+        {
+            var snapshot = _componentSettingsService.Load();
+            enabled = snapshot.DailyWordAutoRefreshEnabled;
+            intervalMinutes = NormalizeAutoRefreshIntervalMinutes(snapshot.DailyWordAutoRefreshIntervalMinutes);
+        }
+        catch
+        {
+            // Keep fallback defaults.
+        }
+
+        _autoRefreshEnabled = enabled;
+        _refreshTimer.Interval = TimeSpan.FromMinutes(intervalMinutes);
+
+        if (!_isAttached)
+        {
+            return;
+        }
+
+        if (_autoRefreshEnabled)
+        {
+            if (!_refreshTimer.IsEnabled)
+            {
+                _refreshTimer.Start();
+            }
+        }
+        else if (_refreshTimer.IsEnabled)
+        {
+            _refreshTimer.Stop();
+        }
+    }
+
+    private static int NormalizeAutoRefreshIntervalMinutes(int minutes)
+    {
+        if (minutes <= 0)
+        {
+            return 360;
+        }
+
+        if (SupportedAutoRefreshIntervalsMinutes.Contains(minutes))
+        {
+            return minutes;
+        }
+
+        return SupportedAutoRefreshIntervalsMinutes
+            .OrderBy(value => Math.Abs(value - minutes))
+            .FirstOrDefault(360);
+    }
+
+    private void CancelRefreshRequest()
+    {
+        var cts = Interlocked.Exchange(ref _refreshCts, null);
+        if (cts is null)
+        {
+            return;
+        }
+
+        cts.Cancel();
+        cts.Dispose();
+    }
+
+    private double ResolveScale()
+    {
+        var cellScale = Math.Clamp(_currentCellSize / BaseCellSize, 0.56, 2.0);
+        var widthScale = Bounds.Width > 1
+            ? Math.Clamp(Bounds.Width / Math.Max(1, _currentCellSize * BaseWidthCells), 0.56, 2.0)
+            : 1;
+        var heightScale = Bounds.Height > 1
+            ? Math.Clamp(Bounds.Height / Math.Max(1, _currentCellSize * BaseHeightCells), 0.56, 2.0)
+            : 1;
+        return Math.Clamp(Math.Min(cellScale, Math.Min(widthScale, heightScale)), 0.56, 2.0);
+    }
+
+    private string L(string key, string fallback)
+    {
+        return _localizationService.GetString(_languageCode, key, fallback);
+    }
+
+    private static string BuildMeaningPreview(string? rawMeaning)
+    {
+        var normalized = NormalizeCompactText(rawMeaning);
+        if (string.IsNullOrWhiteSpace(normalized))
+        {
+            return "Meaning unavailable";
+        }
+
+        var compact = normalized.Replace("；", "; ", StringComparison.Ordinal);
+        return compact.Length <= 160 ? compact : $"{compact[..160]}...";
+    }
+
+    private static string NormalizeCompactText(string? text)
+    {
+        if (string.IsNullOrWhiteSpace(text))
+        {
+            return string.Empty;
+        }
+
+        return MultiWhitespaceRegex.Replace(text.Trim(), " ");
+    }
+
+    private static double FitFontSize(
+        string? text,
+        double maxWidth,
+        double maxHeight,
+        int maxLines,
+        double minFontSize,
+        double maxFontSize,
+        FontWeight weight,
+        double lineHeightFactor)
+    {
+        var content = string.IsNullOrWhiteSpace(text) ? " " : text.Trim();
+        var min = Math.Max(6, minFontSize);
+        var max = Math.Max(min, maxFontSize);
+        var low = min;
+        var high = max;
+        var best = min;
+
+        for (var i = 0; i < 18; i++)
+        {
+            var candidate = (low + high) / 2d;
+            var lineHeight = candidate * lineHeightFactor;
+            var size = MeasureTextSize(content, candidate, weight, Math.Max(1, maxWidth), lineHeight);
+            var lineCount = Math.Max(1, (int)Math.Ceiling(size.Height / Math.Max(1, lineHeight)));
+            var fits = size.Height <= maxHeight + 0.6 && lineCount <= Math.Max(1, maxLines);
+
+            if (fits)
+            {
+                best = candidate;
+                low = candidate;
+            }
+            else
+            {
+                high = candidate;
+            }
+        }
+
+        return best;
+    }
+
+    private static Size MeasureTextSize(string text, double fontSize, FontWeight weight, double maxWidth, double lineHeight)
+    {
+        var probe = new TextBlock
+        {
+            Text = text,
+            FontFamily = MiSansFontFamily,
+            FontSize = fontSize,
+            FontWeight = weight,
+            TextWrapping = TextWrapping.Wrap,
+            LineHeight = lineHeight
+        };
+
+        probe.Measure(new Size(Math.Max(1, maxWidth), double.PositiveInfinity));
+        return probe.DesiredSize;
+    }
+}

LanMountainDesktop/Views/Components/DailyWordSettingsWindow.axaml

@@ -0,0 +1,87 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             mc:Ignorable="d"
+             d:DesignWidth="420"
+             d:DesignHeight="300"
+             x:Class="LanMountainDesktop.Views.Components.DailyWordSettingsWindow">
+    <Border Background="{DynamicResource AdaptiveBackgroundBrush}"
+            Padding="16">
+        <Grid RowDefinitions="Auto,Auto,*"
+              RowSpacing="10">
+            <TextBlock x:Name="TitleTextBlock"
+                       Text="Daily word settings"
+                       FontSize="18"
+                       FontWeight="SemiBold"
+                       Foreground="{DynamicResource AdaptiveTextPrimaryBrush}" />
+
+            <TextBlock x:Name="DescriptionTextBlock"
+                       Grid.Row="1"
+                       Text="Configure auto refresh and refresh interval."
+                       FontSize="12"
+                       TextWrapping="Wrap"
+                       Foreground="{DynamicResource AdaptiveTextSecondaryBrush}" />
+
+            <ScrollViewer Grid.Row="2"
+                          HorizontalScrollBarVisibility="Disabled"
+                          VerticalScrollBarVisibility="Auto">
+                <StackPanel Spacing="10"
+                            Margin="0,0,6,0">
+                    <Border Background="{DynamicResource AdaptiveSurfaceRaisedBrush}"
+                            BorderBrush="{DynamicResource AdaptiveButtonBorderBrush}"
+                            BorderThickness="1"
+                            CornerRadius="12"
+                            Padding="12">
+                        <StackPanel Spacing="6">
+                            <TextBlock x:Name="AutoRefreshLabelTextBlock"
+                                       Text="Auto refresh"
+                                       Foreground="{DynamicResource AdaptiveTextPrimaryBrush}" />
+                            <CheckBox x:Name="AutoRefreshCheckBox"
+                                      Content="Enable auto refresh"
+                                      Checked="OnAutoRefreshChanged"
+                                      Unchecked="OnAutoRefreshChanged" />
+                        </StackPanel>
+                    </Border>
+
+                    <Border x:Name="FrequencyCardBorder"
+                            Background="{DynamicResource AdaptiveSurfaceRaisedBrush}"
+                            BorderBrush="{DynamicResource AdaptiveButtonBorderBrush}"
+                            BorderThickness="1"
+                            CornerRadius="12"
+                            Padding="12"
+                            IsVisible="False">
+                        <StackPanel Spacing="6">
+                            <TextBlock x:Name="FrequencyLabelTextBlock"
+                                       Text="Refresh interval"
+                                       Foreground="{DynamicResource AdaptiveTextPrimaryBrush}" />
+                            <ComboBox x:Name="FrequencyComboBox"
+                                      HorizontalAlignment="Stretch"
+                                      MinWidth="0"
+                                      SelectionChanged="OnFrequencySelectionChanged">
+                                <ComboBoxItem x:Name="Frequency30mItem"
+                                              Tag="30"
+                                              Content="30 min" />
+                                <ComboBoxItem x:Name="Frequency1hItem"
+                                              Tag="60"
+                                              Content="1 hour" />
+                                <ComboBoxItem x:Name="Frequency3hItem"
+                                              Tag="180"
+                                              Content="3 hours" />
+                                <ComboBoxItem x:Name="Frequency6hItem"
+                                              Tag="360"
+                                              Content="6 hours" />
+                                <ComboBoxItem x:Name="Frequency12hItem"
+                                              Tag="720"
+                                              Content="12 hours" />
+                                <ComboBoxItem x:Name="Frequency24hItem"
+                                              Tag="1440"
+                                              Content="24 hours" />
+                            </ComboBox>
+                        </StackPanel>
+                    </Border>
+                </StackPanel>
+            </ScrollViewer>
+        </Grid>
+    </Border>
+</UserControl>

LanMountainDesktop/Views/Components/DailyWordSettingsWindow.axaml.cs

@@ -0,0 +1,153 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Avalonia.Controls;
+using Avalonia.Controls.Primitives;
+using Avalonia.Interactivity;
+using LanMountainDesktop.Models;
+using LanMountainDesktop.Services;
+
+namespace LanMountainDesktop.Views.Components;
+
+public partial class DailyWordSettingsWindow : UserControl
+{
+    private static readonly IReadOnlyList<int> SupportedIntervals = RefreshIntervalCatalog.SupportedIntervalsMinutes;
+
+    private readonly AppSettingsService _appSettingsService = new();
+    private readonly ComponentSettingsService _componentSettingsService = new();
+    private readonly LocalizationService _localizationService = new();
+    private bool _suppressEvents;
+    private string _languageCode = "zh-CN";
+
+    public event EventHandler? SettingsChanged;
+
+    public DailyWordSettingsWindow()
+    {
+        InitializeComponent();
+        InitializeFrequencyOptions();
+        LoadState();
+        ApplyLocalization();
+    }
+
+    private void LoadState()
+    {
+        var appSnapshot = _appSettingsService.Load();
+        var componentSnapshot = _componentSettingsService.Load();
+        _languageCode = _localizationService.NormalizeLanguageCode(appSnapshot.LanguageCode);
+
+        var enabled = componentSnapshot.DailyWordAutoRefreshEnabled;
+        var interval = NormalizeInterval(componentSnapshot.DailyWordAutoRefreshIntervalMinutes);
+
+        _suppressEvents = true;
+        AutoRefreshCheckBox.IsChecked = enabled;
+        SelectInterval(interval);
+        FrequencyCardBorder.IsVisible = enabled;
+        _suppressEvents = false;
+    }
+
+    private void ApplyLocalization()
+    {
+        TitleTextBlock.Text = L("dailyword.settings.title", "Daily word settings");
+        DescriptionTextBlock.Text = L("dailyword.settings.desc", "Configure auto refresh and refresh interval.");
+        AutoRefreshLabelTextBlock.Text = L("dailyword.settings.auto_refresh_label", "Auto refresh");
+        AutoRefreshCheckBox.Content = L("dailyword.settings.auto_refresh_enabled", "Enable auto refresh");
+        FrequencyLabelTextBlock.Text = L("dailyword.settings.frequency_label", "Refresh interval");
+        ApplyFrequencyLocalization();
+    }
+
+    private void OnAutoRefreshChanged(object? sender, RoutedEventArgs e)
+    {
+        _ = sender;
+        _ = e;
+        if (_suppressEvents)
+        {
+            return;
+        }
+
+        var enabled = AutoRefreshCheckBox.IsChecked == true;
+        FrequencyCardBorder.IsVisible = enabled;
+        SaveState();
+    }
+
+    private void OnFrequencySelectionChanged(object? sender, SelectionChangedEventArgs e)
+    {
+        _ = sender;
+        _ = e;
+        if (_suppressEvents)
+        {
+            return;
+        }
+
+        SaveState();
+    }
+
+    private void SaveState()
+    {
+        var snapshot = _componentSettingsService.Load();
+        snapshot.DailyWordAutoRefreshEnabled = AutoRefreshCheckBox.IsChecked == true;
+        snapshot.DailyWordAutoRefreshIntervalMinutes = GetSelectedInterval();
+        _componentSettingsService.Save(snapshot);
+        SettingsChanged?.Invoke(this, EventArgs.Empty);
+    }
+
+    private int GetSelectedInterval()
+    {
+        if (FrequencyComboBox.SelectedItem is ComboBoxItem item &&
+            item.Tag is string tagText &&
+            int.TryParse(tagText, out var minutes))
+        {
+            return NormalizeInterval(minutes);
+        }
+
+        return 360;
+    }
+
+    private void SelectInterval(int intervalMinutes)
+    {
+        var selected = FrequencyComboBox.Items
+            .OfType<ComboBoxItem>()
+            .FirstOrDefault(item =>
+                item.Tag is string tagText &&
+                int.TryParse(tagText, out var minutes) &&
+                minutes == intervalMinutes);
+        FrequencyComboBox.SelectedItem = selected ?? FrequencyComboBox.Items.OfType<ComboBoxItem>().FirstOrDefault();
+    }
+
+    private static int NormalizeInterval(int minutes)
+    {
+        return RefreshIntervalCatalog.Normalize(minutes, 360);
+    }
+
+    private void InitializeFrequencyOptions()
+    {
+        FrequencyComboBox.Items.Clear();
+        foreach (var minutes in SupportedIntervals)
+        {
+            FrequencyComboBox.Items.Add(new ComboBoxItem
+            {
+                Tag = minutes.ToString(),
+                Content = RefreshIntervalCatalog.ToEnglishFallbackLabel(minutes)
+            });
+        }
+    }
+
+    private void ApplyFrequencyLocalization()
+    {
+        foreach (var item in FrequencyComboBox.Items.OfType<ComboBoxItem>())
+        {
+            if (item.Tag is not string tagText ||
+                !int.TryParse(tagText, out var minutes))
+            {
+                continue;
+            }
+
+            var key = $"refresh.frequency.{RefreshIntervalCatalog.ToLocalizationKeySuffix(minutes)}";
+            item.Content = L(key, RefreshIntervalCatalog.ToEnglishFallbackLabel(minutes));
+        }
+    }
+
+    private string L(string key, string fallback)
+    {
+        return _localizationService.GetString(_languageCode, key, fallback);
+    }
+}

LanMountainDesktop/Views/Components/DailyWordWidget.axaml

@@ -0,0 +1,129 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             xmlns:fi="using:FluentIcons.Avalonia"
+             xmlns:shapes="clr-namespace:Avalonia.Controls.Shapes;assembly=Avalonia.Controls"
+             mc:Ignorable="d"
+             d:DesignWidth="640"
+             d:DesignHeight="320"
+             x:Class="LanMountainDesktop.Views.Components.DailyWordWidget">
+
+    <Border x:Name="RootBorder"
+            CornerRadius="34"
+            Background="Transparent"
+            ClipToBounds="True"
+            BorderThickness="0"
+            Padding="0">
+        <Grid>
+            <Border x:Name="CardBorder"
+                    Background="#FCFBFA"
+                    CornerRadius="34"
+                    BorderBrush="Transparent"
+                    BorderThickness="0"
+                    Padding="16,14,16,14">
+                <Grid>
+                    <Grid IsHitTestVisible="False">
+                        <shapes:Ellipse x:Name="HaloEllipse"
+                                        Width="290"
+                                        Height="290"
+                                        HorizontalAlignment="Right"
+                                        VerticalAlignment="Top"
+                                        Margin="0,-106,-52,0"
+                                        Fill="#14F3C9B4" />
+
+                        <Border x:Name="AccentCorner"
+                                Width="116"
+                                Height="116"
+                                HorizontalAlignment="Right"
+                                VerticalAlignment="Bottom"
+                                Margin="0,0,-34,-34"
+                                CornerRadius="58"
+                                Background="#23F29A7A" />
+                    </Grid>
+
+                    <Grid RowDefinitions="Auto,Auto,*,Auto"
+                          RowSpacing="7">
+                        <Grid Grid.Row="0"
+                              ColumnDefinitions="*,Auto"
+                              ColumnSpacing="8">
+                            <TextBlock x:Name="WordTextBlock"
+                                       Text="illustrate"
+                                       Foreground="#F07541"
+                                       FontSize="56"
+                                       FontWeight="Bold"
+                                       TextTrimming="CharacterEllipsis"
+                                       MaxLines="1"
+                                       VerticalAlignment="Center" />
+
+                            <Button x:Name="RefreshButton"
+                                    Grid.Column="1"
+                                    Width="38"
+                                    Height="38"
+                                    CornerRadius="19"
+                                    Background="#14A0A6AF"
+                                    BorderBrush="Transparent"
+                                    BorderThickness="0"
+                                    Padding="0"
+                                    Focusable="False">
+                                <fi:SymbolIcon x:Name="RefreshIcon"
+                                               Symbol="ArrowClockwise"
+                                               IconVariant="Regular"
+                                               FontSize="19"
+                                               Foreground="#626870" />
+                            </Button>
+                        </Grid>
+
+                        <TextBlock x:Name="PronunciationTextBlock"
+                                   Grid.Row="1"
+                                   Text="英 /ˈɪləstreɪt/ · 美 /ˈɪləstreɪt/"
+                                   Foreground="#6B7078"
+                                   FontSize="27"
+                                   FontWeight="SemiBold"
+                                   TextTrimming="CharacterEllipsis"
+                                   MaxLines="1" />
+
+                        <TextBlock x:Name="MeaningTextBlock"
+                                   Grid.Row="2"
+                                   Text="vt. 说明；阐明；举例证明；加插图"
+                                   Foreground="#2B2F35"
+                                   FontSize="25"
+                                   FontWeight="SemiBold"
+                                   TextWrapping="Wrap"
+                                   TextTrimming="CharacterEllipsis"
+                                   MaxLines="2"
+                                   VerticalAlignment="Top" />
+
+                        <StackPanel Grid.Row="3"
+                                    Spacing="2">
+                            <TextBlock x:Name="ExampleTextBlock"
+                                       Text="One example will suffice to illustrate the point."
+                                       Foreground="#2B2F35"
+                                       FontSize="22"
+                                       FontWeight="Medium"
+                                       TextWrapping="Wrap"
+                                       TextTrimming="CharacterEllipsis"
+                                       MaxLines="2" />
+                            <TextBlock x:Name="ExampleTranslationTextBlock"
+                                       Text="一个例子就足以说明这个观点。"
+                                       Foreground="#7A8088"
+                                       FontSize="20"
+                                       FontWeight="Medium"
+                                       TextWrapping="Wrap"
+                                       TextTrimming="CharacterEllipsis"
+                                       MaxLines="1" />
+                        </StackPanel>
+                    </Grid>
+                </Grid>
+            </Border>
+
+            <TextBlock x:Name="StatusTextBlock"
+                       IsVisible="False"
+                       Text="Loading"
+                       Foreground="#6A6F77"
+                       FontSize="16"
+                       HorizontalAlignment="Center"
+                       VerticalAlignment="Center" />
+        </Grid>
+    </Border>
+</UserControl>

LanMountainDesktop/Views/Components/DailyWordWidget.axaml.cs

@@ -0,0 +1,559 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text.RegularExpressions;
+using System.Threading;
+using System.Threading.Tasks;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using Avalonia.Media;
+using Avalonia.Threading;
+using LanMountainDesktop.Models;
+using LanMountainDesktop.Services;
+
+namespace LanMountainDesktop.Views.Components;
+
+public partial class DailyWordWidget : UserControl, IDesktopComponentWidget, IRecommendationInfoAwareComponentWidget
+{
+    private static readonly Regex MultiWhitespaceRegex = new(@"\s+", RegexOptions.Compiled);
+    private static readonly FontFamily MiSansFontFamily = new("MiSans VF, avares://LanMountainDesktop/Assets/Fonts#MiSans");
+    private static readonly IRecommendationInfoService DefaultRecommendationService = new RecommendationDataService();
+
+    private const double BaseCellSize = 48d;
+    private const int BaseWidthCells = 4;
+    private const int BaseHeightCells = 2;
+    private static readonly IReadOnlyList<int> SupportedAutoRefreshIntervalsMinutes = RefreshIntervalCatalog.SupportedIntervalsMinutes;
+
+    private readonly DispatcherTimer _refreshTimer = new()
+    {
+        Interval = TimeSpan.FromHours(6)
+    };
+
+    private readonly AppSettingsService _appSettingsService = new();
+    private readonly ComponentSettingsService _componentSettingsService = new();
+    private readonly LocalizationService _localizationService = new();
+
+    private IRecommendationInfoService _recommendationService = DefaultRecommendationService;
+    private CancellationTokenSource? _refreshCts;
+    private string _languageCode = "zh-CN";
+    private double _currentCellSize = BaseCellSize;
+    private bool _isAttached;
+    private bool _isRefreshing;
+    private bool _autoRefreshEnabled = true;
+
+    public DailyWordWidget()
+    {
+        InitializeComponent();
+
+        WordTextBlock.FontFamily = MiSansFontFamily;
+        PronunciationTextBlock.FontFamily = MiSansFontFamily;
+        MeaningTextBlock.FontFamily = MiSansFontFamily;
+        ExampleTextBlock.FontFamily = MiSansFontFamily;
+        ExampleTranslationTextBlock.FontFamily = MiSansFontFamily;
+        StatusTextBlock.FontFamily = MiSansFontFamily;
+
+        _refreshTimer.Tick += OnRefreshTimerTick;
+        RefreshButton.Click += OnRefreshButtonClick;
+        AttachedToVisualTree += OnAttachedToVisualTree;
+        DetachedFromVisualTree += OnDetachedFromVisualTree;
+        SizeChanged += OnSizeChanged;
+
+        ApplyCellSize(_currentCellSize);
+        UpdateLanguageCode();
+        ApplyAutoRefreshSettings();
+        ApplyLoadingState();
+        UpdateRefreshButtonState();
+    }
+
+    public void ApplyCellSize(double cellSize)
+    {
+        _currentCellSize = Math.Max(1, cellSize);
+        UpdateAdaptiveLayout();
+    }
+
+    public void SetRecommendationInfoService(IRecommendationInfoService recommendationInfoService)
+    {
+        _recommendationService = recommendationInfoService ?? DefaultRecommendationService;
+        if (_isAttached)
+        {
+            _ = RefreshWordAsync(forceRefresh: false);
+        }
+    }
+
+    public void RefreshFromSettings()
+    {
+        _recommendationService.ClearCache();
+        ApplyAutoRefreshSettings();
+        if (_isAttached)
+        {
+            _ = RefreshWordAsync(forceRefresh: true);
+        }
+    }
+
+    private void OnAttachedToVisualTree(object? sender, VisualTreeAttachmentEventArgs e)
+    {
+        _isAttached = true;
+        ApplyAutoRefreshSettings();
+        UpdateRefreshButtonState();
+        _ = RefreshWordAsync(forceRefresh: false);
+    }
+
+    private void OnDetachedFromVisualTree(object? sender, VisualTreeAttachmentEventArgs e)
+    {
+        _isAttached = false;
+        _refreshTimer.Stop();
+        CancelRefreshRequest();
+        UpdateRefreshButtonState();
+    }
+
+    private void OnSizeChanged(object? sender, SizeChangedEventArgs e)
+    {
+        ApplyCellSize(_currentCellSize);
+    }
+
+    private async void OnRefreshButtonClick(object? sender, RoutedEventArgs e)
+    {
+        if (_isRefreshing)
+        {
+            return;
+        }
+
+        await RefreshWordAsync(forceRefresh: true);
+        e.Handled = true;
+    }
+
+    private async void OnRefreshTimerTick(object? sender, EventArgs e)
+    {
+        await RefreshWordAsync(forceRefresh: false);
+    }
+
+    private async Task RefreshWordAsync(bool forceRefresh)
+    {
+        if (!_isAttached || _isRefreshing)
+        {
+            return;
+        }
+
+        _isRefreshing = true;
+        UpdateRefreshButtonState();
+        UpdateLanguageCode();
+
+        var cts = new CancellationTokenSource();
+        var previous = Interlocked.Exchange(ref _refreshCts, cts);
+        previous?.Cancel();
+        previous?.Dispose();
+
+        try
+        {
+            var query = new DailyWordQuery(
+                Locale: _languageCode,
+                ForceRefresh: forceRefresh);
+            var result = await _recommendationService.GetDailyWordAsync(query, cts.Token);
+            if (!_isAttached || cts.IsCancellationRequested)
+            {
+                return;
+            }
+
+            if (!result.Success || result.Data is null)
+            {
+                ApplyFailedState();
+                return;
+            }
+
+            ApplySnapshot(result.Data);
+        }
+        catch (OperationCanceledException)
+        {
+            // Ignore canceled requests.
+        }
+        catch
+        {
+            if (_isAttached && !cts.IsCancellationRequested)
+            {
+                ApplyFailedState();
+            }
+        }
+        finally
+        {
+            if (ReferenceEquals(_refreshCts, cts))
+            {
+                _refreshCts = null;
+            }
+
+            cts.Dispose();
+            _isRefreshing = false;
+            UpdateRefreshButtonState();
+        }
+    }
+
+    private void ApplySnapshot(DailyWordSnapshot snapshot)
+    {
+        WordTextBlock.Text = NormalizeCompactText(snapshot.Word);
+        PronunciationTextBlock.Text = BuildPronunciationText(snapshot);
+        MeaningTextBlock.Text = BuildMeaningText(snapshot.Meaning);
+        ExampleTextBlock.Text = BuildExampleText(snapshot.ExampleSentence);
+        ExampleTranslationTextBlock.Text = BuildExampleTranslation(snapshot.ExampleTranslation);
+
+        StatusTextBlock.IsVisible = false;
+        UpdateAdaptiveLayout();
+    }
+
+    private void ApplyLoadingState()
+    {
+        WordTextBlock.Text = L("dailyword.widget.loading_word", "daily word");
+        PronunciationTextBlock.Text = L("dailyword.widget.loading_pronunciation", "Fetching pronunciation...");
+        MeaningTextBlock.Text = L("dailyword.widget.loading_meaning", "Fetching meaning...");
+        ExampleTextBlock.Text = L("dailyword.widget.loading_example", "Fetching example sentence...");
+        ExampleTranslationTextBlock.Text = L("dailyword.widget.loading_example_translation", "Loading...");
+        StatusTextBlock.Text = L("dailyword.widget.loading", "Loading...");
+        StatusTextBlock.IsVisible = true;
+        UpdateAdaptiveLayout();
+    }
+
+    private void ApplyFailedState()
+    {
+        WordTextBlock.Text = L("dailyword.widget.fallback_word", "daily word");
+        PronunciationTextBlock.Text = L("dailyword.widget.fallback_pronunciation", "Pronunciation unavailable");
+        MeaningTextBlock.Text = L("dailyword.widget.fallback_meaning", "Youdao dictionary is temporarily unavailable.");
+        ExampleTextBlock.Text = L("dailyword.widget.fallback_example", "Tap the refresh button and try again.");
+        ExampleTranslationTextBlock.Text = L("dailyword.widget.fallback_example_translation", "It will retry when network recovers.");
+        StatusTextBlock.Text = L("dailyword.widget.fetch_failed", "Daily word fetch failed");
+        StatusTextBlock.IsVisible = true;
+        UpdateAdaptiveLayout();
+    }
+
+    private void UpdateAdaptiveLayout()
+    {
+        var scale = ResolveScale();
+        var totalWidth = Bounds.Width > 1 ? Bounds.Width : _currentCellSize * BaseWidthCells;
+        var totalHeight = Bounds.Height > 1 ? Bounds.Height : _currentCellSize * BaseHeightCells;
+
+        RootBorder.CornerRadius = new CornerRadius(Math.Clamp(34 * scale, 16, 52));
+        RootBorder.Padding = new Thickness(0);
+
+        CardBorder.CornerRadius = new CornerRadius(Math.Clamp(34 * scale, 16, 52));
+        CardBorder.Padding = new Thickness(
+            Math.Clamp(16 * scale, 8, 24),
+            Math.Clamp(14 * scale, 7, 22),
+            Math.Clamp(16 * scale, 8, 24),
+            Math.Clamp(14 * scale, 7, 22));
+
+        var refreshSize = Math.Clamp(38 * scale, 22, 48);
+        RefreshButton.Width = refreshSize;
+        RefreshButton.Height = refreshSize;
+        RefreshButton.CornerRadius = new CornerRadius(refreshSize / 2d);
+        RefreshIcon.FontSize = Math.Clamp(19 * scale, 12, 26);
+
+        HaloEllipse.Width = Math.Clamp(totalWidth * 0.52, 120, 340);
+        HaloEllipse.Height = HaloEllipse.Width;
+        AccentCorner.Width = Math.Clamp(totalWidth * 0.20, 66, 132);
+        AccentCorner.Height = AccentCorner.Width;
+        AccentCorner.CornerRadius = new CornerRadius(AccentCorner.Width / 2d);
+
+        var horizontalPadding = RootBorder.Padding.Left + RootBorder.Padding.Right + CardBorder.Padding.Left + CardBorder.Padding.Right;
+        var contentWidth = Math.Max(98, totalWidth - horizontalPadding);
+        var wordWidth = Math.Max(70, contentWidth - refreshSize - Math.Clamp(8 * scale, 5, 14));
+        WordTextBlock.MaxWidth = wordWidth;
+        PronunciationTextBlock.MaxWidth = contentWidth;
+        MeaningTextBlock.MaxWidth = contentWidth;
+        ExampleTextBlock.MaxWidth = contentWidth;
+        ExampleTranslationTextBlock.MaxWidth = contentWidth;
+
+        var compactLayout = totalHeight < _currentCellSize * 1.72;
+        MeaningTextBlock.MaxLines = compactLayout ? 1 : 2;
+        ExampleTextBlock.MaxLines = compactLayout ? 1 : 2;
+        ExampleTranslationTextBlock.IsVisible = !compactLayout;
+        ExampleTranslationTextBlock.MaxLines = 1;
+
+        var contentHeight = Math.Max(52, totalHeight - RootBorder.Padding.Top - RootBorder.Padding.Bottom - CardBorder.Padding.Top - CardBorder.Padding.Bottom);
+        var wordHeightBudget = Math.Max(18, contentHeight * 0.24);
+        var pronunciationHeightBudget = Math.Max(14, contentHeight * 0.16);
+        var meaningHeightBudget = Math.Max(16, contentHeight * (compactLayout ? 0.26 : 0.30));
+        var exampleHeightBudget = Math.Max(16, contentHeight - wordHeightBudget - pronunciationHeightBudget - meaningHeightBudget - Math.Clamp(16 * scale, 8, 24));
+        if (!ExampleTranslationTextBlock.IsVisible)
+        {
+            exampleHeightBudget += Math.Clamp(11 * scale, 5, 18);
+        }
+
+        var wordBase = Math.Clamp(56 * scale, 18, 72);
+        WordTextBlock.FontSize = FitFontSize(
+            WordTextBlock.Text,
+            wordWidth,
+            wordHeightBudget,
+            maxLines: 1,
+            minFontSize: Math.Max(14, wordBase * 0.56),
+            maxFontSize: wordBase,
+            weight: FontWeight.Bold,
+            lineHeightFactor: 1.04);
+        WordTextBlock.LineHeight = WordTextBlock.FontSize * 1.04;
+
+        var pronunciationBase = Math.Clamp(27 * scale, 10, 36);
+        PronunciationTextBlock.FontSize = FitFontSize(
+            PronunciationTextBlock.Text,
+            contentWidth,
+            pronunciationHeightBudget,
+            maxLines: 1,
+            minFontSize: Math.Max(8.6, pronunciationBase * 0.62),
+            maxFontSize: pronunciationBase,
+            weight: FontWeight.SemiBold,
+            lineHeightFactor: 1.08);
+        PronunciationTextBlock.LineHeight = PronunciationTextBlock.FontSize * 1.08;
+
+        var meaningBase = Math.Clamp(25 * scale, 10, 34);
+        MeaningTextBlock.FontSize = FitFontSize(
+            MeaningTextBlock.Text,
+            contentWidth,
+            meaningHeightBudget,
+            maxLines: Math.Max(1, MeaningTextBlock.MaxLines),
+            minFontSize: Math.Max(9.2, meaningBase * 0.60),
+            maxFontSize: meaningBase,
+            weight: FontWeight.SemiBold,
+            lineHeightFactor: 1.10);
+        MeaningTextBlock.LineHeight = MeaningTextBlock.FontSize * 1.10;
+
+        var exampleBase = Math.Clamp(22 * scale, 9, 30);
+        ExampleTextBlock.FontSize = FitFontSize(
+            ExampleTextBlock.Text,
+            contentWidth,
+            exampleHeightBudget,
+            maxLines: Math.Max(1, ExampleTextBlock.MaxLines),
+            minFontSize: Math.Max(8.8, exampleBase * 0.58),
+            maxFontSize: exampleBase,
+            weight: FontWeight.Medium,
+            lineHeightFactor: 1.08);
+        ExampleTextBlock.LineHeight = ExampleTextBlock.FontSize * 1.08;
+
+        var translationBase = Math.Clamp(20 * scale, 8, 28);
+        ExampleTranslationTextBlock.FontSize = FitFontSize(
+            ExampleTranslationTextBlock.Text,
+            contentWidth,
+            Math.Max(10, exampleHeightBudget * 0.44),
+            maxLines: 1,
+            minFontSize: Math.Max(7.8, translationBase * 0.62),
+            maxFontSize: translationBase,
+            weight: FontWeight.Medium,
+            lineHeightFactor: 1.06);
+        ExampleTranslationTextBlock.LineHeight = ExampleTranslationTextBlock.FontSize * 1.06;
+
+        StatusTextBlock.FontSize = Math.Clamp(16 * scale, 9, 24);
+    }
+
+    private void UpdateRefreshButtonState()
+    {
+        RefreshButton.IsEnabled = !_isRefreshing;
+        RefreshButton.Opacity = _isAttached ? 1.0 : 0.85;
+        RefreshIcon.Opacity = _isRefreshing ? 0.56 : 1.0;
+    }
+
+    private void UpdateLanguageCode()
+    {
+        try
+        {
+            var snapshot = _appSettingsService.Load();
+            _languageCode = _localizationService.NormalizeLanguageCode(snapshot.LanguageCode);
+        }
+        catch
+        {
+            _languageCode = "zh-CN";
+        }
+    }
+
+    private void ApplyAutoRefreshSettings()
+    {
+        var enabled = true;
+        var intervalMinutes = 360;
+
+        try
+        {
+            var snapshot = _componentSettingsService.Load();
+            enabled = snapshot.DailyWordAutoRefreshEnabled;
+            intervalMinutes = NormalizeAutoRefreshIntervalMinutes(snapshot.DailyWordAutoRefreshIntervalMinutes);
+        }
+        catch
+        {
+            // Keep fallback defaults.
+        }
+
+        _autoRefreshEnabled = enabled;
+        _refreshTimer.Interval = TimeSpan.FromMinutes(intervalMinutes);
+
+        if (!_isAttached)
+        {
+            return;
+        }
+
+        if (_autoRefreshEnabled)
+        {
+            if (!_refreshTimer.IsEnabled)
+            {
+                _refreshTimer.Start();
+            }
+        }
+        else if (_refreshTimer.IsEnabled)
+        {
+            _refreshTimer.Stop();
+        }
+    }
+
+    private static int NormalizeAutoRefreshIntervalMinutes(int minutes)
+    {
+        if (minutes <= 0)
+        {
+            return 360;
+        }
+
+        if (SupportedAutoRefreshIntervalsMinutes.Contains(minutes))
+        {
+            return minutes;
+        }
+
+        return SupportedAutoRefreshIntervalsMinutes
+            .OrderBy(value => Math.Abs(value - minutes))
+            .FirstOrDefault(360);
+    }
+
+    private void CancelRefreshRequest()
+    {
+        var cts = Interlocked.Exchange(ref _refreshCts, null);
+        if (cts is null)
+        {
+            return;
+        }
+
+        cts.Cancel();
+        cts.Dispose();
+    }
+
+    private string L(string key, string fallback)
+    {
+        return _localizationService.GetString(_languageCode, key, fallback);
+    }
+
+    private double ResolveScale()
+    {
+        var cellScale = Math.Clamp(_currentCellSize / BaseCellSize, 0.56, 2.0);
+        var widthScale = Bounds.Width > 1
+            ? Math.Clamp(Bounds.Width / Math.Max(1, _currentCellSize * BaseWidthCells), 0.56, 2.0)
+            : 1;
+        var heightScale = Bounds.Height > 1
+            ? Math.Clamp(Bounds.Height / Math.Max(1, _currentCellSize * BaseHeightCells), 0.56, 2.0)
+            : 1;
+        return Math.Clamp(Math.Min(cellScale, Math.Min(widthScale, heightScale)), 0.56, 2.0);
+    }
+
+    private string BuildPronunciationText(DailyWordSnapshot snapshot)
+    {
+        var uk = NormalizeCompactText(snapshot.UkPronunciation);
+        var us = NormalizeCompactText(snapshot.UsPronunciation);
+        var isZh = string.Equals(_languageCode, "zh-CN", StringComparison.OrdinalIgnoreCase);
+
+        if (!string.IsNullOrWhiteSpace(uk) && !string.IsNullOrWhiteSpace(us))
+        {
+            return isZh
+                ? $"英 /{uk}/ · 美 /{us}/"
+                : $"UK /{uk}/ · US /{us}/";
+        }
+
+        if (!string.IsNullOrWhiteSpace(uk))
+        {
+            return isZh ? $"英 /{uk}/" : $"UK /{uk}/";
+        }
+
+        if (!string.IsNullOrWhiteSpace(us))
+        {
+            return isZh ? $"美 /{us}/" : $"US /{us}/";
+        }
+
+        return isZh ? "英/美 发音暂无" : "Pronunciation unavailable";
+    }
+
+    private static string BuildMeaningText(string? rawMeaning)
+    {
+        var normalized = NormalizeCompactText(rawMeaning);
+        return string.IsNullOrWhiteSpace(normalized)
+            ? "Meaning unavailable"
+            : normalized;
+    }
+
+    private static string BuildExampleText(string? sentence)
+    {
+        var normalized = NormalizeCompactText(sentence);
+        return string.IsNullOrWhiteSpace(normalized)
+            ? "No example sentence."
+            : normalized;
+    }
+
+    private static string BuildExampleTranslation(string? translation)
+    {
+        var normalized = NormalizeCompactText(translation);
+        return string.IsNullOrWhiteSpace(normalized)
+            ? string.Empty
+            : normalized;
+    }
+
+    private static string NormalizeCompactText(string? text)
+    {
+        if (string.IsNullOrWhiteSpace(text))
+        {
+            return string.Empty;
+        }
+
+        return MultiWhitespaceRegex.Replace(text.Trim(), " ");
+    }
+
+    private static double FitFontSize(
+        string? text,
+        double maxWidth,
+        double maxHeight,
+        int maxLines,
+        double minFontSize,
+        double maxFontSize,
+        FontWeight weight,
+        double lineHeightFactor)
+    {
+        var content = string.IsNullOrWhiteSpace(text) ? " " : text.Trim();
+        var min = Math.Max(6, minFontSize);
+        var max = Math.Max(min, maxFontSize);
+        var low = min;
+        var high = max;
+        var best = min;
+
+        for (var i = 0; i < 18; i++)
+        {
+            var candidate = (low + high) / 2d;
+            var lineHeight = candidate * lineHeightFactor;
+            var size = MeasureTextSize(content, candidate, weight, Math.Max(1, maxWidth), lineHeight);
+            var lineCount = Math.Max(1, (int)Math.Ceiling(size.Height / Math.Max(1, lineHeight)));
+            var fits = size.Height <= maxHeight + 0.6 && lineCount <= Math.Max(1, maxLines);
+
+            if (fits)
+            {
+                best = candidate;
+                low = candidate;
+            }
+            else
+            {
+                high = candidate;
+            }
+        }
+
+        return best;
+    }
+
+    private static Size MeasureTextSize(string text, double fontSize, FontWeight weight, double maxWidth, double lineHeight)
+    {
+        var probe = new TextBlock
+        {
+            Text = text,
+            FontFamily = MiSansFontFamily,
+            FontSize = fontSize,
+            FontWeight = weight,
+            TextWrapping = TextWrapping.Wrap,
+            LineHeight = lineHeight
+        };
+
+        probe.Measure(new Size(Math.Max(1, maxWidth), double.PositiveInfinity));
+        return probe.DesiredSize;
+    }
+}

LanMountainDesktop/Views/Components/DesktopComponentRuntimeRegistry.cs

@@ -41,7 +41,8 @@ public sealed class DesktopComponentRuntimeDescriptor
         double cellSize,
         TimeZoneService timeZoneService,
         IWeatherInfoService weatherInfoService,
-        IRecommendationInfoService recommendationInfoService)
+        IRecommendationInfoService recommendationInfoService,
+        ICalculatorDataService calculatorDataService)
     {
         var control = _controlFactory();
         if (control is IDesktopComponentWidget sizedComponent)
@@ -64,6 +65,11 @@ public sealed class DesktopComponentRuntimeDescriptor
             recommendationInfoAwareComponent.SetRecommendationInfoService(recommendationInfoService);
         }
 
+        if (control is ICalculatorInfoAwareComponentWidget calculatorInfoAwareComponent)
+        {
+            calculatorInfoAwareComponent.SetCalculatorDataService(calculatorDataService);
+        }
+
         return control;
     }
 
@@ -134,6 +140,11 @@ public sealed class DesktopComponentRuntimeRegistry
                     "component.weather_clock",
                     () => new WeatherClockWidget(),
                     cellSize => Math.Clamp(cellSize * 0.34, 14, 30)),
+                new DesktopComponentRuntimeRegistration(
+                    BuiltInComponentIds.DesktopWorldClock,
+                    "component.world_clock",
+                    () => new WorldClockWidget(),
+                    cellSize => Math.Clamp(cellSize * 0.30, 10, 24)),
                 new DesktopComponentRuntimeRegistration(
                     BuiltInComponentIds.DesktopTimer,
                     "component.desktop_timer",
@@ -224,6 +235,46 @@ public sealed class DesktopComponentRuntimeRegistry
                     "component.daily_artwork",
                     () => new DailyArtworkWidget(),
                     cellSize => Math.Clamp(cellSize * 0.34, 14, 30)),
+                new DesktopComponentRuntimeRegistration(
+                    BuiltInComponentIds.DesktopDailyWord,
+                    "component.daily_word",
+                    () => new DailyWordWidget(),
+                    cellSize => Math.Clamp(cellSize * 0.34, 14, 30)),
+                new DesktopComponentRuntimeRegistration(
+                    BuiltInComponentIds.DesktopDailyWord2x2,
+                    "component.daily_word_2x2",
+                    () => new DailyWord2x2Widget(),
+                    cellSize => Math.Clamp(cellSize * 0.34, 12, 26)),
+                new DesktopComponentRuntimeRegistration(
+                    BuiltInComponentIds.DesktopCnrDailyNews,
+                    "component.cnr_daily_news",
+                    () => new CnrDailyNewsWidget(),
+                    cellSize => Math.Clamp(cellSize * 0.34, 14, 30)),
+                new DesktopComponentRuntimeRegistration(
+                    BuiltInComponentIds.DesktopIfengNews,
+                    "component.ifeng_news",
+                    () => new IfengNewsWidget(),
+                    cellSize => Math.Clamp(cellSize * 0.30, 12, 24)),
+                new DesktopComponentRuntimeRegistration(
+                    BuiltInComponentIds.DesktopBilibiliHotSearch,
+                    "component.bilibili_hot_search",
+                    () => new BilibiliHotSearchWidget(),
+                    cellSize => Math.Clamp(cellSize * 0.34, 14, 30)),
+                new DesktopComponentRuntimeRegistration(
+                    BuiltInComponentIds.DesktopBaiduHotSearch,
+                    "component.baidu_hot_search",
+                    () => new BaiduHotSearchWidget(),
+                    cellSize => Math.Clamp(cellSize * 0.34, 14, 30)),
+                new DesktopComponentRuntimeRegistration(
+                    BuiltInComponentIds.DesktopStcn24Forum,
+                    "component.stcn24_forum",
+                    () => new Stcn24ForumWidget(),
+                    cellSize => Math.Clamp(cellSize * 0.28, 12, 24)),
+                new DesktopComponentRuntimeRegistration(
+                    BuiltInComponentIds.DesktopExchangeRateCalculator,
+                    "component.exchange_rate_converter",
+                    () => new ExchangeRateCalculatorWidget(),
+                    cellSize => Math.Clamp(cellSize * 0.28, 12, 26)),
                 new DesktopComponentRuntimeRegistration(
                     BuiltInComponentIds.DesktopWhiteboard,
                     "component.whiteboard",

LanMountainDesktop/Views/Components/ExchangeRateCalculatorWidget.axaml

@@ -0,0 +1,194 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             mc:Ignorable="d"
+             d:DesignWidth="320"
+             d:DesignHeight="320"
+             x:Class="LanMountainDesktop.Views.Components.ExchangeRateCalculatorWidget">
+
+    <UserControl.Styles>
+        <Style Selector="Button">
+            <Setter Property="CornerRadius" Value="16" />
+            <Setter Property="Background" Value="#F8F9FB" />
+            <Setter Property="BorderBrush" Value="#00000000" />
+            <Setter Property="BorderThickness" Value="0" />
+            <Setter Property="FontSize" Value="26" />
+            <Setter Property="FontWeight" Value="SemiBold" />
+            <Setter Property="Foreground" Value="#111723" />
+            <Setter Property="Padding" Value="0" />
+        </Style>
+    </UserControl.Styles>
+
+    <Border x:Name="RootBorder"
+            CornerRadius="34"
+            ClipToBounds="True"
+            Padding="12"
+            Background="#ECEDEF">
+        <Viewbox Stretch="Uniform">
+            <Grid x:Name="LayoutRoot"
+                  Width="304"
+                  Height="304"
+                  RowDefinitions="Auto,Auto,*"
+                  RowSpacing="8">
+                <Grid Grid.Row="0"
+                      ColumnDefinitions="*,62"
+                      RowDefinitions="Auto,Auto"
+                      RowSpacing="8"
+                      ColumnSpacing="8">
+                    <Border x:Name="FromCurrencyRowBorder"
+                            Grid.Row="0"
+                            Grid.Column="0"
+                            CornerRadius="16"
+                            Background="#F8F9FB"
+                            Padding="12,8"
+                            PointerPressed="OnFromCurrencyRowPointerPressed">
+                        <Grid ColumnDefinitions="Auto,Auto,*"
+                              ColumnSpacing="8">
+                            <StackPanel Orientation="Vertical"
+                                        Spacing="1"
+                                        VerticalAlignment="Center">
+                                <TextBlock x:Name="FromCurrencyCodeTextBlock"
+                                           Text="USD"
+                                           FontSize="18"
+                                           FontWeight="SemiBold"
+                                           Foreground="#121722" />
+                                <TextBlock x:Name="FromCurrencyNameTextBlock"
+                                           Text="美元"
+                                           FontSize="13"
+                                           Foreground="#6C7382" />
+                            </StackPanel>
+                            <TextBlock Grid.Column="1"
+                                       Text=">"
+                                       FontSize="18"
+                                       Foreground="#A3A9B6"
+                                       VerticalAlignment="Center" />
+                            <TextBlock x:Name="InputAmountTextBlock"
+                                       Grid.Column="2"
+                                       Text="100"
+                                       FontSize="42"
+                                       FontWeight="Bold"
+                                       Foreground="#F08D20"
+                                       TextAlignment="Right"
+                                       VerticalAlignment="Center"
+                                       HorizontalAlignment="Right"
+                                       MaxLines="1"
+                                       TextTrimming="CharacterEllipsis" />
+                        </Grid>
+                    </Border>
+
+                    <Border x:Name="ToCurrencyRowBorder"
+                            Grid.Row="1"
+                            Grid.Column="0"
+                            CornerRadius="16"
+                            Background="#F8F9FB"
+                            Padding="12,8"
+                            PointerPressed="OnToCurrencyRowPointerPressed">
+                        <Grid ColumnDefinitions="Auto,Auto,*"
+                              ColumnSpacing="8">
+                            <StackPanel Orientation="Vertical"
+                                        Spacing="1"
+                                        VerticalAlignment="Center">
+                                <TextBlock x:Name="ToCurrencyCodeTextBlock"
+                                           Text="CNY"
+                                           FontSize="18"
+                                           FontWeight="SemiBold"
+                                           Foreground="#121722" />
+                                <TextBlock x:Name="ToCurrencyNameTextBlock"
+                                           Text="人民币"
+                                           FontSize="13"
+                                           Foreground="#6C7382" />
+                            </StackPanel>
+                            <TextBlock Grid.Column="1"
+                                       Text=">"
+                                       FontSize="18"
+                                       Foreground="#A3A9B6"
+                                       VerticalAlignment="Center" />
+                            <TextBlock x:Name="ConvertedAmountTextBlock"
+                                       Grid.Column="2"
+                                       Text="0"
+                                       FontSize="42"
+                                       FontWeight="Bold"
+                                       Foreground="#0F1622"
+                                       TextAlignment="Right"
+                                       VerticalAlignment="Center"
+                                       HorizontalAlignment="Right"
+                                       MaxLines="1"
+                                       TextTrimming="CharacterEllipsis" />
+                        </Grid>
+                    </Border>
+
+                    <Button x:Name="SwapCurrencyButton"
+                            Grid.Row="0"
+                            Grid.RowSpan="2"
+                            Grid.Column="1"
+                            CornerRadius="16"
+                            Background="#F8F9FB"
+                            BorderBrush="#00000000"
+                            BorderThickness="0"
+                            FontSize="30"
+                            Content="⇅"
+                            Click="OnSwapCurrencyButtonClick" />
+                </Grid>
+
+                <TextBlock x:Name="RateTextBlock"
+                           Grid.Row="1"
+                           Text="1 USD = 0 CNY"
+                           FontSize="14"
+                           Foreground="#646D7D"
+                           Margin="4,0,0,0"
+                           MaxLines="1"
+                           TextTrimming="CharacterEllipsis" />
+
+                <Grid Grid.Row="2"
+                      ColumnDefinitions="*,*,*,84"
+                      RowDefinitions="*,*,*,*"
+                      RowSpacing="8"
+                      ColumnSpacing="8">
+                    <Button Grid.Row="0" Grid.Column="0" Content="7" Tag="7" Click="OnInputButtonClick" />
+                    <Button Grid.Row="0" Grid.Column="1" Content="8" Tag="8" Click="OnInputButtonClick" />
+                    <Button Grid.Row="0" Grid.Column="2" Content="9" Tag="9" Click="OnInputButtonClick" />
+
+                    <Button Grid.Row="1" Grid.Column="0" Content="4" Tag="4" Click="OnInputButtonClick" />
+                    <Button Grid.Row="1" Grid.Column="1" Content="5" Tag="5" Click="OnInputButtonClick" />
+                    <Button Grid.Row="1" Grid.Column="2" Content="6" Tag="6" Click="OnInputButtonClick" />
+
+                    <Button Grid.Row="2" Grid.Column="0" Content="1" Tag="1" Click="OnInputButtonClick" />
+                    <Button Grid.Row="2" Grid.Column="1" Content="2" Tag="2" Click="OnInputButtonClick" />
+                    <Button Grid.Row="2" Grid.Column="2" Content="3" Tag="3" Click="OnInputButtonClick" />
+
+                    <Button Grid.Row="3" Grid.Column="0" Content="00" Tag="00" Click="OnInputButtonClick" />
+                    <Button Grid.Row="3" Grid.Column="1" Content="0" Tag="0" Click="OnInputButtonClick" />
+                    <Button Grid.Row="3" Grid.Column="2" Content="." Tag="." Click="OnInputButtonClick" />
+
+                    <Button x:Name="ClearButton"
+                            Grid.Row="0"
+                            Grid.RowSpan="2"
+                            Grid.Column="3"
+                            Content="AC"
+                            Background="#D9DDE4"
+                            Tag="AC"
+                            Click="OnInputButtonClick" />
+
+                    <Button x:Name="BackspaceButton"
+                            Grid.Row="2"
+                            Grid.RowSpan="2"
+                            Grid.Column="3"
+                            Content="⌫"
+                            Background="#D9DDE4"
+                            Tag="BACK"
+                            Click="OnInputButtonClick" />
+                </Grid>
+
+                <TextBlock x:Name="StatusTextBlock"
+                           Grid.RowSpan="3"
+                           IsVisible="False"
+                           Text="Loading"
+                           Foreground="#5E6677"
+                           FontSize="15"
+                           HorizontalAlignment="Center"
+                           VerticalAlignment="Center" />
+            </Grid>
+        </Viewbox>
+    </Border>
+</UserControl>

LanMountainDesktop/Views/Components/ExchangeRateCalculatorWidget.axaml.cs

@@ -0,0 +1,347 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Input;
+using Avalonia.Media;
+using Avalonia.Threading;
+using LanMountainDesktop.Services;
+
+namespace LanMountainDesktop.Views.Components;
+
+public partial class ExchangeRateCalculatorWidget : UserControl, IDesktopComponentWidget, IRecommendationInfoAwareComponentWidget, ICalculatorInfoAwareComponentWidget
+{
+    private sealed record CurrencyItem(string Code, string ZhName, string EnName);
+
+    private static readonly FontFamily MiSansFontFamily = new("MiSans VF, avares://LanMountainDesktop/Assets/Fonts#MiSans");
+    private static readonly CurrencyItem[] CurrencyItems =
+    [
+        new("USD", "美元", "US Dollar"),
+        new("CNY", "人民币", "Chinese Yuan"),
+        new("EUR", "欧元", "Euro"),
+        new("JPY", "日元", "Japanese Yen"),
+        new("HKD", "港币", "Hong Kong Dollar"),
+        new("GBP", "英镑", "British Pound")
+    ];
+
+    private static readonly IRecommendationInfoService DefaultRecommendationService = new RecommendationDataService();
+    private static readonly ICalculatorDataService DefaultCalculatorService = new CalculatorDataService();
+
+    private readonly DispatcherTimer _refreshTimer = new()
+    {
+        Interval = TimeSpan.FromMinutes(30)
+    };
+
+    private readonly AppSettingsService _settingsService = new();
+    private readonly LocalizationService _localizationService = new();
+    private IRecommendationInfoService _recommendationService = DefaultRecommendationService;
+    private ICalculatorDataService _calculatorDataService = DefaultCalculatorService;
+
+    private string _languageCode = "zh-CN";
+    private string _fromCurrency = "USD";
+    private string _toCurrency = "CNY";
+    private string _inputText = "100";
+    private decimal _currentRate = 0m;
+    private CancellationTokenSource? _refreshCts;
+    private double _currentCellSize = 48d;
+    private bool _isAttached;
+    private bool _isRefreshing;
+
+    public ExchangeRateCalculatorWidget()
+    {
+        InitializeComponent();
+
+        FromCurrencyCodeTextBlock.FontFamily = MiSansFontFamily;
+        FromCurrencyNameTextBlock.FontFamily = MiSansFontFamily;
+        ToCurrencyCodeTextBlock.FontFamily = MiSansFontFamily;
+        ToCurrencyNameTextBlock.FontFamily = MiSansFontFamily;
+        InputAmountTextBlock.FontFamily = MiSansFontFamily;
+        ConvertedAmountTextBlock.FontFamily = MiSansFontFamily;
+        RateTextBlock.FontFamily = MiSansFontFamily;
+        StatusTextBlock.FontFamily = MiSansFontFamily;
+
+        AttachedToVisualTree += OnAttachedToVisualTree;
+        DetachedFromVisualTree += OnDetachedFromVisualTree;
+        SizeChanged += OnSizeChanged;
+        _refreshTimer.Tick += OnRefreshTimerTick;
+
+        ApplyCellSize(_currentCellSize);
+        UpdateLanguageCode();
+        UpdateCurrencyLabels();
+        UpdateAmounts();
+        ApplyLoadingState();
+    }
+
+    public void ApplyCellSize(double cellSize)
+    {
+        _currentCellSize = Math.Max(1, cellSize);
+        var scale = ResolveScale();
+        RootBorder.CornerRadius = new CornerRadius(Math.Clamp(34 * scale, 14, 48));
+        RootBorder.Padding = new Thickness(Math.Clamp(12 * scale, 6, 18));
+    }
+
+    public void SetRecommendationInfoService(IRecommendationInfoService recommendationInfoService)
+    {
+        _recommendationService = recommendationInfoService ?? DefaultRecommendationService;
+        if (_isAttached)
+        {
+            _ = RefreshExchangeRateAsync(forceRefresh: false);
+        }
+    }
+
+    public void SetCalculatorDataService(ICalculatorDataService calculatorDataService)
+    {
+        _calculatorDataService = calculatorDataService ?? DefaultCalculatorService;
+        UpdateAmounts();
+    }
+
+    private void OnAttachedToVisualTree(object? sender, VisualTreeAttachmentEventArgs e)
+    {
+        _isAttached = true;
+        _refreshTimer.Start();
+        _ = RefreshExchangeRateAsync(forceRefresh: false);
+    }
+
+    private void OnDetachedFromVisualTree(object? sender, VisualTreeAttachmentEventArgs e)
+    {
+        _isAttached = false;
+        _refreshTimer.Stop();
+        CancelRefreshRequest();
+    }
+
+    private void OnSizeChanged(object? sender, SizeChangedEventArgs e)
+    {
+        ApplyCellSize(_currentCellSize);
+    }
+
+    private async void OnRefreshTimerTick(object? sender, EventArgs e)
+    {
+        await RefreshExchangeRateAsync(forceRefresh: false);
+    }
+
+    private async void OnSwapCurrencyButtonClick(object? sender, Avalonia.Interactivity.RoutedEventArgs e)
+    {
+        _ = sender;
+        var from = _fromCurrency;
+        _fromCurrency = _toCurrency;
+        _toCurrency = from;
+        UpdateCurrencyLabels();
+        await RefreshExchangeRateAsync(forceRefresh: false);
+    }
+
+    private async void OnFromCurrencyRowPointerPressed(object? sender, PointerPressedEventArgs e)
+    {
+        _ = sender;
+        if (!e.GetCurrentPoint(this).Properties.IsLeftButtonPressed)
+        {
+            return;
+        }
+
+        _fromCurrency = GetNextCurrencyCode(_fromCurrency, _toCurrency);
+        UpdateCurrencyLabels();
+        await RefreshExchangeRateAsync(forceRefresh: false);
+        e.Handled = true;
+    }
+
+    private async void OnToCurrencyRowPointerPressed(object? sender, PointerPressedEventArgs e)
+    {
+        _ = sender;
+        if (!e.GetCurrentPoint(this).Properties.IsLeftButtonPressed)
+        {
+            return;
+        }
+
+        _toCurrency = GetNextCurrencyCode(_toCurrency, _fromCurrency);
+        UpdateCurrencyLabels();
+        await RefreshExchangeRateAsync(forceRefresh: false);
+        e.Handled = true;
+    }
+
+    private void OnInputButtonClick(object? sender, Avalonia.Interactivity.RoutedEventArgs e)
+    {
+        if (sender is not Button button || button.Tag is null)
+        {
+            return;
+        }
+
+        var token = button.Tag.ToString() ?? string.Empty;
+        _inputText = _calculatorDataService.ApplyInputToken(_inputText, token);
+        UpdateAmounts();
+        e.Handled = true;
+    }
+
+    private async Task RefreshExchangeRateAsync(bool forceRefresh)
+    {
+        if (!_isAttached || _isRefreshing)
+        {
+            return;
+        }
+
+        _isRefreshing = true;
+        UpdateLanguageCode();
+
+        var cts = new CancellationTokenSource();
+        var previous = Interlocked.Exchange(ref _refreshCts, cts);
+        previous?.Cancel();
+        previous?.Dispose();
+
+        try
+        {
+            var query = new ExchangeRateQuery(
+                BaseCurrency: _fromCurrency,
+                TargetCurrency: _toCurrency,
+                ForceRefresh: forceRefresh);
+            var result = await _recommendationService.GetExchangeRateAsync(query, cts.Token);
+            if (!_isAttached || cts.IsCancellationRequested)
+            {
+                return;
+            }
+
+            if (!result.Success || result.Data is null)
+            {
+                ApplyFailedState();
+                return;
+            }
+
+            _currentRate = result.Data.Rate;
+            StatusTextBlock.IsVisible = false;
+            UpdateAmounts();
+        }
+        catch (OperationCanceledException)
+        {
+            // Ignore canceled requests.
+        }
+        catch
+        {
+            if (_isAttached && !cts.IsCancellationRequested)
+            {
+                ApplyFailedState();
+            }
+        }
+        finally
+        {
+            if (ReferenceEquals(_refreshCts, cts))
+            {
+                _refreshCts = null;
+            }
+
+            cts.Dispose();
+            _isRefreshing = false;
+        }
+    }
+
+    private void UpdateCurrencyLabels()
+    {
+        var from = ResolveCurrency(_fromCurrency);
+        var to = ResolveCurrency(_toCurrency);
+
+        FromCurrencyCodeTextBlock.Text = from.Code;
+        FromCurrencyNameTextBlock.Text = IsZh() ? from.ZhName : from.EnName;
+        ToCurrencyCodeTextBlock.Text = to.Code;
+        ToCurrencyNameTextBlock.Text = IsZh() ? to.ZhName : to.EnName;
+    }
+
+    private void UpdateAmounts()
+    {
+        var amount = _calculatorDataService.ParseAmountOrZero(_inputText);
+        var converted = amount * Math.Max(0m, _currentRate);
+
+        InputAmountTextBlock.Text = _inputText;
+        ConvertedAmountTextBlock.Text = _calculatorDataService.FormatAmount(converted, maxFractionDigits: 4);
+        RateTextBlock.Text = string.Format(
+            CultureInfo.InvariantCulture,
+            "1 {0} = {1} {2}",
+            _fromCurrency,
+            _calculatorDataService.FormatAmount(_currentRate, maxFractionDigits: 6),
+            _toCurrency);
+    }
+
+    private void ApplyLoadingState()
+    {
+        StatusTextBlock.Text = L("exchange.widget.loading", "正在加载汇率...");
+        StatusTextBlock.IsVisible = true;
+    }
+
+    private void ApplyFailedState()
+    {
+        StatusTextBlock.Text = L("exchange.widget.fetch_failed", "汇率获取失败");
+        StatusTextBlock.IsVisible = true;
+        UpdateAmounts();
+    }
+
+    private void UpdateLanguageCode()
+    {
+        try
+        {
+            var snapshot = _settingsService.Load();
+            _languageCode = _localizationService.NormalizeLanguageCode(snapshot.LanguageCode);
+        }
+        catch
+        {
+            _languageCode = "zh-CN";
+        }
+    }
+
+    private string GetNextCurrencyCode(string current, string avoid)
+    {
+        var currentIndex = Array.FindIndex(
+            CurrencyItems,
+            item => string.Equals(item.Code, current, StringComparison.OrdinalIgnoreCase));
+        if (currentIndex < 0)
+        {
+            currentIndex = 0;
+        }
+
+        for (var step = 1; step <= CurrencyItems.Length; step++)
+        {
+            var next = CurrencyItems[(currentIndex + step) % CurrencyItems.Length].Code;
+            if (!string.Equals(next, avoid, StringComparison.OrdinalIgnoreCase))
+            {
+                return next;
+            }
+        }
+
+        return current;
+    }
+
+    private static CurrencyItem ResolveCurrency(string code)
+    {
+        return CurrencyItems.FirstOrDefault(item =>
+            string.Equals(item.Code, code, StringComparison.OrdinalIgnoreCase))
+            ?? CurrencyItems[0];
+    }
+
+    private bool IsZh()
+    {
+        return string.Equals(_languageCode, "zh-CN", StringComparison.OrdinalIgnoreCase);
+    }
+
+    private string L(string key, string fallback)
+    {
+        return _localizationService.GetString(_languageCode, key, fallback);
+    }
+
+    private double ResolveScale()
+    {
+        var cellScale = Math.Clamp(_currentCellSize / 48d, 0.72, 1.8);
+        var widthScale = Bounds.Width > 1 ? Math.Clamp(Bounds.Width / 304d, 0.72, 2.0) : 1;
+        var heightScale = Bounds.Height > 1 ? Math.Clamp(Bounds.Height / 304d, 0.72, 2.0) : 1;
+        return Math.Clamp(Math.Min(cellScale, Math.Min(widthScale, heightScale)), 0.72, 1.95);
+    }
+
+    private void CancelRefreshRequest()
+    {
+        var cts = Interlocked.Exchange(ref _refreshCts, null);
+        if (cts is null)
+        {
+            return;
+        }
+
+        cts.Cancel();
+        cts.Dispose();
+    }
+}

LanMountainDesktop/Views/Components/ExtendedWeatherWidget.axaml

@@ -88,7 +88,7 @@
                                    FontFeatures="tnum"
                                    VerticalAlignment="Center"
                                    Margin="0,-2,0,0"
-                                   TextTrimming="CharacterEllipsis"
+                                   TextTrimming="None"
                                    MaxLines="1" />
 
                         <Grid x:Name="SummaryInfoGrid"

LanMountainDesktop/Views/Components/ExtendedWeatherWidget.axaml.cs

@@ -11,16 +11,21 @@ using Avalonia.Media;
 using Avalonia.Threading;
 using LanMountainDesktop.Models;
 using LanMountainDesktop.Services;
+using LanMountainDesktop.Theme;
 
 namespace LanMountainDesktop.Views.Components;
 
-public partial class ExtendedWeatherWidget : UserControl, IDesktopComponentWidget, ITimeZoneAwareComponentWidget, IWeatherInfoAwareComponentWidget
+public partial class ExtendedWeatherWidget : UserControl, IDesktopComponentWidget, IDesktopPageVisibilityAwareComponentWidget, ITimeZoneAwareComponentWidget, IWeatherInfoAwareComponentWidget
 {
     private static readonly IWeatherInfoService DefaultWeatherInfoService = new XiaomiWeatherService();
+    private static readonly IReadOnlyList<int> SupportedAutoRefreshIntervalsMinutes = RefreshIntervalCatalog.SupportedIntervalsMinutes;
 
     private readonly DispatcherTimer _refreshTimer = new() { Interval = TimeSpan.FromMinutes(12) };
-    private readonly DispatcherTimer _animationTimer = new() { Interval = TimeSpan.FromMilliseconds(48) };
+    private readonly DispatcherTimer _animationTimer = new() { Interval = FluttermotionToken.WeatherAnimationFrameInterval };
+    private readonly ScaleTransform _backgroundMotionScaleTransform = new(1, 1);
+    private readonly TranslateTransform _backgroundMotionTranslateTransform = new();
     private readonly AppSettingsService _settingsService = new();
+    private readonly ComponentSettingsService _componentSettingsService = new();
     private readonly LocalizationService _localizationService = new();
 
     private IWeatherInfoService _weatherInfoService = DefaultWeatherInfoService;
@@ -29,7 +34,9 @@ public partial class ExtendedWeatherWidget : UserControl, IDesktopComponentWidge
     private double _currentCellSize = 48;
     private double _phase;
     private bool _isAttached;
+    private bool _isOnActivePage = true;
     private bool _isRefreshing;
+    private bool _autoRefreshEnabled = true;
     private string _languageCode = "zh-CN";
     private HyperOS3WeatherVisualKind _activeVisualKind = HyperOS3WeatherVisualKind.ClearDay;
     private readonly TextBlock[] _hourlyTempBlocks;
@@ -39,10 +46,12 @@ public partial class ExtendedWeatherWidget : UserControl, IDesktopComponentWidge
     private readonly TextBlock[] _dailyHighBlocks;
     private readonly TextBlock[] _dailyLowBlocks;
     private readonly Image[] _dailyIconBlocks;
+    private readonly HyperOS3WeatherVisualKind[] _dailyIconKinds;
 
     public ExtendedWeatherWidget()
     {
         InitializeComponent();
+        InitializeMotionTransform();
         _hourlyTempBlocks =
         [
             HourlyTemp0, HourlyTemp1, HourlyTemp2, HourlyTemp3, HourlyTemp4, HourlyTemp5
@@ -71,27 +80,17 @@ public partial class ExtendedWeatherWidget : UserControl, IDesktopComponentWidge
         [
             DailyIcon0, DailyIcon1, DailyIcon2, DailyIcon3, DailyIcon4
         ];
+        _dailyIconKinds = Enumerable.Repeat(HyperOS3WeatherVisualKind.CloudyDay, _dailyIconBlocks.Length).ToArray();
         ConfigureTextOverflowGuards();
         _refreshTimer.Tick += OnRefreshTimerTick;
         _animationTimer.Tick += OnAnimationTick;
-        AttachedToVisualTree += (_, _) =>
-        {
-            _isAttached = true;
-            _refreshTimer.Start();
-            _animationTimer.Start();
-            _ = RefreshWeatherAsync(false);
-        };
-        DetachedFromVisualTree += (_, _) =>
-        {
-            _isAttached = false;
-            _refreshTimer.Stop();
-            _animationTimer.Stop();
-            CancelRefresh();
-        };
-        SizeChanged += (_, _) => ApplyCellSize(_currentCellSize);
+        AttachedToVisualTree += OnAttachedToVisualTree;
+        DetachedFromVisualTree += OnDetachedFromVisualTree;
+        SizeChanged += OnSizeChanged;
         ApplyCellSize(_currentCellSize);
         ApplyVisualTheme(_activeVisualKind);
         ApplyFallback();
+        ApplyAutoRefreshSettings();
     }
 
     private void ConfigureTextOverflowGuards()
@@ -109,7 +108,7 @@ public partial class ExtendedWeatherWidget : UserControl, IDesktopComponentWidge
         RangeTextBlock.MaxLines = 1;
 
         TemperatureTextBlock.TextWrapping = TextWrapping.NoWrap;
-        TemperatureTextBlock.TextTrimming = TextTrimming.CharacterEllipsis;
+        TemperatureTextBlock.TextTrimming = TextTrimming.None;
         TemperatureTextBlock.MaxLines = 1;
     }
 
@@ -126,9 +125,11 @@ public partial class ExtendedWeatherWidget : UserControl, IDesktopComponentWidge
         BackgroundTintLayer.CornerRadius = new CornerRadius(radius);
         BackgroundLightLayer.CornerRadius = new CornerRadius(radius);
         BackgroundShadeLayer.CornerRadius = new CornerRadius(radius);
+        var horizontalPadding = Math.Clamp(Math.Min(width * metrics.HorizontalPaddingScale * 0.30, width * 0.11), 4, 34);
+        var verticalPadding = Math.Clamp(Math.Min(height * metrics.VerticalPaddingScale * 0.30, height * 0.11), 4, 34);
         ContentPaddingBorder.Padding = new Thickness(
-            Math.Clamp(width * metrics.HorizontalPaddingScale * 0.30, 10, 30),
-            Math.Clamp(height * metrics.VerticalPaddingScale * 0.30, 10, 30));
+            horizontalPadding,
+            verticalPadding);
         ApplyTypography(width, height);
     }
 
@@ -157,7 +158,29 @@ public partial class ExtendedWeatherWidget : UserControl, IDesktopComponentWidge
     public void SetWeatherInfoService(IWeatherInfoService weatherInfoService)
     {
         _weatherInfoService = weatherInfoService ?? DefaultWeatherInfoService;
-        if (_isAttached)
+        if (_isAttached && _isOnActivePage)
+        {
+            _ = RefreshWeatherAsync(false);
+        }
+    }
+
+    public void RefreshFromSettings()
+    {
+        ApplyAutoRefreshSettings();
+        if (_isAttached && _isOnActivePage)
+        {
+            _ = RefreshWeatherAsync(forceRefresh: true);
+        }
+    }
+
+    public void SetDesktopPageContext(bool isOnActivePage, bool isEditMode)
+    {
+        _ = isEditMode;
+        var wasOnActivePage = _isOnActivePage;
+        _isOnActivePage = isOnActivePage;
+        UpdateTimerState();
+
+        if (!wasOnActivePage && _isOnActivePage && _isAttached)
         {
             _ = RefreshWeatherAsync(false);
         }
@@ -165,12 +188,35 @@ public partial class ExtendedWeatherWidget : UserControl, IDesktopComponentWidge
 
     private void OnTimeZoneChanged(object? sender, EventArgs e)
     {
-        if (_isAttached)
+        if (_isAttached && _isOnActivePage)
         {
             _ = RefreshWeatherAsync(false);
         }
     }
 
+    private void OnAttachedToVisualTree(object? sender, VisualTreeAttachmentEventArgs e)
+    {
+        _isAttached = true;
+        ApplyAutoRefreshSettings();
+        UpdateTimerState();
+        if (_isOnActivePage)
+        {
+            _ = RefreshWeatherAsync(false);
+        }
+    }
+
+    private void OnDetachedFromVisualTree(object? sender, VisualTreeAttachmentEventArgs e)
+    {
+        _isAttached = false;
+        UpdateTimerState();
+        CancelRefresh();
+    }
+
+    private void OnSizeChanged(object? sender, SizeChangedEventArgs e)
+    {
+        ApplyCellSize(_currentCellSize);
+    }
+
     private async void OnRefreshTimerTick(object? sender, EventArgs e)
     {
         await RefreshWeatherAsync(false);
@@ -178,18 +224,16 @@ public partial class ExtendedWeatherWidget : UserControl, IDesktopComponentWidge
 
     private void OnAnimationTick(object? sender, EventArgs e)
     {
+        if (!_isAttached || !_isOnActivePage)
+        {
+            return;
+        }
+
         _phase += 0.018;
         if (_phase > Math.PI * 2) _phase -= Math.PI * 2;
         var sin = Math.Sin(_phase);
         var cos = Math.Cos(_phase * 0.83);
-        BackgroundMotionLayer.RenderTransform = new TransformGroup
-        {
-            Children = new Transforms
-            {
-                new ScaleTransform(1.05 + (sin * 0.01), 1.05 + (sin * 0.01)),
-                new TranslateTransform(sin * 7.0, cos * 5.0)
-            }
-        };
+        SetMotionTransform(sin * 7.0, cos * 5.0, 1.05 + (sin * 0.01));
         BackgroundMotionLayer.Opacity = Math.Clamp(0.27 + (cos * 0.05), 0.10, 0.90);
         BackgroundLightLayer.Opacity = Math.Clamp(0.62 + (sin * 0.06), 0.20, 0.95);
         BackgroundShadeLayer.Opacity = Math.Clamp(0.80 + (cos * 0.03), 0.45, 0.95);
@@ -197,7 +241,7 @@ public partial class ExtendedWeatherWidget : UserControl, IDesktopComponentWidge
 
     private async Task RefreshWeatherAsync(bool forceRefresh)
     {
-        if (!_isAttached || _isRefreshing)
+        if (!_isAttached || !_isOnActivePage || _isRefreshing)
         {
             return;
         }
@@ -274,7 +318,7 @@ public partial class ExtendedWeatherWidget : UserControl, IDesktopComponentWidge
         var kind = HyperOS3WeatherTheme.ResolveVisualKind(snapshot.Current.WeatherCode, isNight);
         ApplyVisualTheme(kind);
         SetLoadingSkeleton(false);
-        WeatherIconImage.Source = HyperOS3WeatherAssetLoader.LoadImage(HyperOS3WeatherTheme.ResolveIconAsset(kind));
+        WeatherIconImage.Source = HyperOS3WeatherAssetLoader.LoadImage(HyperOS3WeatherTheme.ResolveHeroIconAsset(kind));
         CityTextBlock.Text = ResolveLocation(snapshot.LocationName, fallbackLocationName);
         ConditionTextBlock.Text = ResolveWeatherText(snapshot.Current.WeatherText, kind);
         TemperatureTextBlock.Text = FormatTemperature(snapshot.Current.TemperatureC);
@@ -302,7 +346,7 @@ public partial class ExtendedWeatherWidget : UserControl, IDesktopComponentWidge
                 ? L("weather.hourly.sunset", "Sunset")
                 : FormatTemperature(item?.Source.TemperatureC ?? snapshot.Current.TemperatureC);
             _hourlyTimeBlocks[i].Text = target.ToString("HH:mm", CultureInfo.InvariantCulture);
-            _hourlyIconBlocks[i].Source = HyperOS3WeatherAssetLoader.LoadImage(HyperOS3WeatherTheme.ResolveIconAsset(hourKind));
+            _hourlyIconBlocks[i].Source = HyperOS3WeatherAssetLoader.LoadImage(HyperOS3WeatherTheme.ResolveMiniIconAsset(hourKind));
         }
 
         var todayDate = DateOnly.FromDateTime(now);
@@ -316,7 +360,8 @@ public partial class ExtendedWeatherWidget : UserControl, IDesktopComponentWidge
             _dailyLabelBlocks[i].Text = $"{ResolveDayLabel(date, i + 1)}·{dayText}";
             _dailyHighBlocks[i].Text = FormatTemperatureValue(daily?.HighTemperatureC);
             _dailyLowBlocks[i].Text = FormatTemperatureValue(daily?.LowTemperatureC);
-            _dailyIconBlocks[i].Source = HyperOS3WeatherAssetLoader.LoadImage(HyperOS3WeatherTheme.ResolveIconAsset(dayKind));
+            _dailyIconKinds[i] = dayKind;
+            _dailyIconBlocks[i].Source = HyperOS3WeatherAssetLoader.LoadImage(HyperOS3WeatherTheme.ResolveMiniIconAsset(dayKind));
         }
     }
 
@@ -324,7 +369,7 @@ public partial class ExtendedWeatherWidget : UserControl, IDesktopComponentWidge
     {
         ApplyVisualTheme(HyperOS3WeatherVisualKind.CloudyDay);
         SetLoadingSkeleton(false);
-        WeatherIconImage.Source = HyperOS3WeatherAssetLoader.LoadImage(HyperOS3WeatherTheme.ResolveIconAsset(HyperOS3WeatherVisualKind.CloudyDay));
+        WeatherIconImage.Source = HyperOS3WeatherAssetLoader.LoadImage(HyperOS3WeatherTheme.ResolveHeroIconAsset(HyperOS3WeatherVisualKind.CloudyDay));
         CityTextBlock.Text = L("weather.widget.location_unknown", "Unknown location");
         ConditionTextBlock.Text = L("weather.widget.loading", "Loading...");
         TemperatureTextBlock.Text = "--°";
@@ -335,7 +380,7 @@ public partial class ExtendedWeatherWidget : UserControl, IDesktopComponentWidge
         {
             _hourlyTempBlocks[i].Text = i == 3 ? L("weather.hourly.sunset", "Sunset") : "--°";
             _hourlyTimeBlocks[i].Text = timelineStart.AddHours(i).ToString("HH:mm", CultureInfo.InvariantCulture);
-            _hourlyIconBlocks[i].Source = HyperOS3WeatherAssetLoader.LoadImage(HyperOS3WeatherTheme.ResolveIconAsset(HyperOS3WeatherVisualKind.CloudyDay));
+            _hourlyIconBlocks[i].Source = HyperOS3WeatherAssetLoader.LoadImage(HyperOS3WeatherTheme.ResolveMiniIconAsset(HyperOS3WeatherVisualKind.CloudyDay));
         }
 
         for (var i = 0; i < _dailyLabelBlocks.Length; i++)
@@ -343,7 +388,8 @@ public partial class ExtendedWeatherWidget : UserControl, IDesktopComponentWidge
             _dailyLabelBlocks[i].Text = $"{ResolveDayLabel(DateOnly.FromDateTime(DateTime.Now).AddDays(i + 1), i + 1)}·{L("weather.widget.condition_cloudy", "Cloudy")}";
             _dailyHighBlocks[i].Text = "--";
             _dailyLowBlocks[i].Text = "--";
-            _dailyIconBlocks[i].Source = HyperOS3WeatherAssetLoader.LoadImage(HyperOS3WeatherTheme.ResolveIconAsset(HyperOS3WeatherVisualKind.CloudyDay));
+            _dailyIconKinds[i] = HyperOS3WeatherVisualKind.CloudyDay;
+            _dailyIconBlocks[i].Source = HyperOS3WeatherAssetLoader.LoadImage(HyperOS3WeatherTheme.ResolveMiniIconAsset(HyperOS3WeatherVisualKind.CloudyDay));
         }
     }
 
@@ -422,84 +468,145 @@ public partial class ExtendedWeatherWidget : UserControl, IDesktopComponentWidge
 
     private void ApplyTypography(double width, double height)
     {
-        var scale = ResolveScale(width, height);
-        var compactness = Math.Clamp((0.90 - scale) / 0.55, 0, 1);
-        LayoutRoot.RowSpacing = Math.Clamp(height * 0.012, 5, 13);
-        SummaryGrid.ColumnSpacing = Math.Clamp(width * 0.016, 8, 22);
-        SummaryInfoGrid.RowSpacing = Math.Clamp(height * 0.003, 1, 4);
-        BottomInfoStack.Spacing = Math.Clamp(2.2 * scale, 1, 6);
-        ConditionRangeStack.Spacing = Math.Clamp(7 * scale, 4, 13);
-        HourlyGrid.ColumnSpacing = Math.Clamp(width * 0.007, 3, 10);
-        DailyGrid.RowSpacing = Math.Clamp(height * 0.009, 4, 10);
-        TemperatureTextBlock.FontSize = Math.Clamp(height * 0.18, 52, 154);
-        TemperatureTextBlock.FontWeight = ToVariableWeight(Lerp(300, 370, Math.Clamp((scale - 0.50) / 1.2, 0, 1)));
-        var topScaleH = Math.Clamp(height / 640d, 0.62, 2.0);
-        var topScaleW = Math.Clamp(width / 640d, 0.62, 2.0);
-        var topScale = Math.Clamp((topScaleH * 0.68) + (topScaleW * 0.32), 0.62, 2.0);
-        var cityFontSize = Math.Clamp(18 * topScale, 11, 26);
-        var conditionFontSize = Math.Clamp(19 * topScale, 12, 27);
-        var rangeFontSize = Math.Clamp(20 * topScale, 12, 30);
+        var innerWidth = Math.Max(140, width - ContentPaddingBorder.Padding.Left - ContentPaddingBorder.Padding.Right);
+        var innerHeight = Math.Max(140, height - ContentPaddingBorder.Padding.Top - ContentPaddingBorder.Padding.Bottom);
+        var fitScale = Math.Clamp(Math.Min(innerWidth / 592d, innerHeight / 600d), 0.30, 3.20);
+        var cellScale = Math.Clamp(_currentCellSize / 44d, 0.34, 3.80);
+        var visualScale = Math.Clamp((fitScale * 0.72) + (cellScale * 0.28), 0.30, 3.80);
+        var emphasis = Math.Clamp((visualScale - 0.82) / 1.90, 0, 1);
+
+        LayoutRoot.RowSpacing = Math.Clamp(8 * fitScale, 1, 22);
+        SummaryGrid.ColumnSpacing = Math.Clamp(16 * fitScale, 4, 38);
+        SummaryInfoGrid.RowSpacing = Math.Clamp(2 * fitScale, 0.2, 9);
+        BottomInfoStack.Spacing = Math.Clamp(2 * fitScale, 0.3, 14);
+        ConditionRangeStack.Spacing = Math.Clamp(9 * fitScale, 1, 24);
+        HourlyGrid.ColumnSpacing = Math.Clamp(4 * fitScale, 0.5, 22);
+
+        var summaryHeight = Math.Clamp(innerHeight * 0.22, 34, Math.Max(34, innerHeight * 0.42));
+        var hourlyHeight = Math.Clamp(innerHeight * 0.20, 34, Math.Max(34, innerHeight * 0.36));
+        var separatorBandHeight = Math.Clamp(innerHeight * 0.03, 4, 40);
+        if (LayoutRoot.RowDefinitions.Count >= 4)
+        {
+            LayoutRoot.RowDefinitions[0].Height = new GridLength(summaryHeight, GridUnitType.Pixel);
+            LayoutRoot.RowDefinitions[1].Height = new GridLength(hourlyHeight, GridUnitType.Pixel);
+            LayoutRoot.RowDefinitions[2].Height = new GridLength(separatorBandHeight, GridUnitType.Pixel);
+            LayoutRoot.RowDefinitions[3].Height = new GridLength(1, GridUnitType.Star);
+        }
+
+        var topScale = Math.Clamp(((summaryHeight / 118d) * 0.44) + (visualScale * 0.84), 0.24, 4.00);
+        var iconGrowth = Math.Clamp((visualScale - 0.88) / 1.70, 0, 1);
+        var iconScaleBoost = ResolveHeroIconScaleBoost(_activeVisualKind);
+        var iconSize = Math.Clamp(Lerp(90, 122, iconGrowth) * topScale * iconScaleBoost, 14, 360);
+        iconSize = Math.Min(iconSize, Math.Max(14, innerWidth * Lerp(0.18, 0.26, iconGrowth)));
+        var temperatureSample = string.IsNullOrWhiteSpace(TemperatureTextBlock.Text)
+            ? "00°"
+            : TemperatureTextBlock.Text.Trim();
+        var temperatureGlyphCount = Math.Clamp(temperatureSample.Length, 3, 6);
+        var temperatureMaxWidth = Math.Max(30, innerWidth - iconSize - SummaryGrid.ColumnSpacing - 6);
+        var rawTemperatureSize = Math.Clamp(Lerp(72, 102, iconGrowth) * topScale, 14, 340);
+        var fitTemperatureSize = temperatureMaxWidth / (temperatureGlyphCount * 0.62);
+        TemperatureTextBlock.FontSize = Math.Clamp(Math.Min(rawTemperatureSize, fitTemperatureSize), 10, 340);
+        TemperatureTextBlock.FontWeight = ToVariableWeight(Lerp(300, 380, emphasis));
+        TemperatureTextBlock.MaxWidth = Math.Clamp(temperatureMaxWidth, 30, Math.Max(300, innerWidth * 0.66));
+        TemperatureTextBlock.Margin = new Thickness(0, Math.Clamp(-2.2 * topScale, -12, 0), 0, 0);
+
+        var cityFontSize = Math.Clamp(18.5 * topScale, 7, 86);
+        var conditionFontSize = Math.Clamp(20 * topScale, 7, 90);
+        var rangeFontSize = Math.Clamp(20 * topScale, 7, 90);
         CityTextBlock.FontSize = cityFontSize;
         ConditionTextBlock.FontSize = conditionFontSize;
         RangeTextBlock.FontSize = rangeFontSize;
-        CityTextBlock.FontWeight = ToVariableWeight(540);
-        ConditionTextBlock.FontWeight = ToVariableWeight(600);
-        RangeTextBlock.FontWeight = ToVariableWeight(620);
+        CityTextBlock.FontWeight = ToVariableWeight(Lerp(530, 620, emphasis));
+        ConditionTextBlock.FontWeight = ToVariableWeight(Lerp(580, 660, emphasis));
+        RangeTextBlock.FontWeight = ToVariableWeight(Lerp(600, 680, emphasis));
         CityTextBlock.LineHeight = cityFontSize * 1.08;
         ConditionTextBlock.LineHeight = conditionFontSize * 1.06;
         RangeTextBlock.LineHeight = rangeFontSize * 1.06;
-        var iconSize = Math.Clamp(height * 0.116, 36, 102);
+
         WeatherIconImage.Width = iconSize;
         WeatherIconImage.Height = iconSize;
-        ConditionTextBlock.MaxWidth = Math.Clamp(width * 0.24, 58, 220);
-        RangeTextBlock.MaxWidth = Math.Clamp(width * 0.30, 88, 270);
-        CityTextBlock.MaxWidth = Math.Clamp(width * 0.36, 112, 300);
+        WeatherIconImage.Margin = new Thickness(0, Math.Clamp(-2.4 * topScale, -12, 0), 0, 0);
+        ConditionTextBlock.MaxWidth = Math.Clamp(innerWidth * 0.25, 28, 340);
+        RangeTextBlock.MaxWidth = Math.Clamp(innerWidth * 0.31, 34, 380);
+        CityTextBlock.MaxWidth = Math.Clamp(innerWidth * 0.36, 34, 420);
 
         HourlyPanelBorder.Padding = new Thickness(0);
         HourlyPanelBorder.CornerRadius = new CornerRadius(0);
+        HourlyPanelBorder.Margin = new Thickness(0, Math.Clamp(4 * fitScale, 0, 18), 0, 0);
 
-        var hourlyBandHeight = Math.Clamp(height * 0.195, 74, 160);
-        var hourlyCellWidth = Math.Max(34, (width - HourlyPanelBorder.Padding.Left - HourlyPanelBorder.Padding.Right - (HourlyGrid.ColumnSpacing * 5)) / 6d);
-        var hourlyTempSize = Math.Clamp(hourlyBandHeight * 0.24, 10, 32);
-        var hourlyTimeSize = Math.Clamp(hourlyBandHeight * 0.18, 8, 22);
-        var hourlyIconSize = Math.Clamp(hourlyBandHeight * 0.20, 12, 30);
-        var hourlyStackSpacing = Math.Clamp(hourlyBandHeight * 0.03, 1, 4);
+        var hourlyCellWidth = Math.Max(12, (innerWidth - (HourlyGrid.ColumnSpacing * 5)) / 6d);
+        var hourlyCellScale = Math.Clamp(
+            Math.Min((visualScale * 0.44) + ((hourlyHeight / 120d) * 0.62), hourlyCellWidth / 76d),
+            0.22,
+            3.80);
+        var hourlyTempSize = Math.Clamp(19 * hourlyCellScale, 6, 72);
+        var hourlyTimeSize = Math.Clamp(14 * hourlyCellScale, 6, 52);
+        var hourlyIconSize = Math.Clamp(42 * hourlyCellScale, 9, 140);
+        hourlyIconSize = Math.Min(hourlyIconSize, Math.Max(10, hourlyCellWidth * 0.86));
+        hourlyIconSize = Math.Min(hourlyIconSize, Math.Max(10, hourlyHeight * 0.56));
+        var hourlyStackSpacing = Math.Clamp(2 * hourlyCellScale, 0.2, 10);
         for (var i = 0; i < _hourlyTempBlocks.Length; i++)
         {
             _hourlyTempBlocks[i].FontSize = hourlyTempSize;
             _hourlyTimeBlocks[i].FontSize = hourlyTimeSize;
-            _hourlyTempBlocks[i].FontWeight = ToVariableWeight(Lerp(540, 610, Math.Clamp((scale - 0.50) / 1.2, 0, 1)));
-            _hourlyTimeBlocks[i].FontWeight = ToVariableWeight(Lerp(450, 530, Math.Clamp((scale - 0.50) / 1.2, 0, 1)));
-            _hourlyTempBlocks[i].MaxWidth = hourlyCellWidth;
-            _hourlyTimeBlocks[i].MaxWidth = hourlyCellWidth;
+            _hourlyTempBlocks[i].FontWeight = ToVariableWeight(Lerp(540, 650, emphasis));
+            _hourlyTimeBlocks[i].FontWeight = ToVariableWeight(Lerp(450, 560, emphasis));
+            _hourlyTempBlocks[i].MaxWidth = Math.Clamp(hourlyCellWidth, 12, 260);
+            _hourlyTimeBlocks[i].MaxWidth = Math.Clamp(hourlyCellWidth, 12, 260);
             _hourlyIconBlocks[i].Width = hourlyIconSize;
             _hourlyIconBlocks[i].Height = hourlyIconSize;
             if (_hourlyTempBlocks[i].Parent is StackPanel stack) stack.Spacing = hourlyStackSpacing;
         }
 
-        var dailyLabelSize = Math.Clamp(height * 0.041, 10, 30);
-        var dailyTempSize = Math.Clamp(height * 0.043, 10, 33);
-        var dailyIconSize = Math.Clamp(height * 0.040, 12, 30);
-        var dailyLabelMaxWidth = Math.Clamp(width * (compactness > 0.3 ? 0.48 : 0.56), 120, 380);
-        var dailyHighWidth = Math.Clamp(width * 0.11, 34, 72);
-        var dailyLowWidth = Math.Clamp(width * 0.10, 30, 68);
+        SeparatorLine.Margin = new Thickness(0, Math.Clamp(separatorBandHeight * 0.45, 1, 16), 0, 0);
+        DailyGrid.Margin = new Thickness(0, Math.Clamp(6 * fitScale, 0.5, 24), 0, 0);
+        var dailyAreaHeight = Math.Max(50, innerHeight - summaryHeight - hourlyHeight - separatorBandHeight - (LayoutRoot.RowSpacing * 3) - DailyGrid.Margin.Top);
+        var dailyRowSpacing = Math.Clamp(dailyAreaHeight * 0.028, 1, 22);
+        DailyGrid.RowSpacing = dailyRowSpacing;
+        var dailyRowHeight = Math.Max(8, (dailyAreaHeight - (dailyRowSpacing * 4)) / 5d);
+        var dailyRowScale = Math.Clamp(((dailyRowHeight / 40d) * 0.62) + (visualScale * 0.44), 0.22, 3.80);
+
+        var dailyLabelSize = Math.Clamp(18.5 * dailyRowScale, 6, 70);
+        var dailyTempSize = Math.Clamp(19 * dailyRowScale, 6, 72);
+        var dailyIconSize = Math.Clamp(43 * dailyRowScale, 9, 132);
+        dailyIconSize = Math.Min(dailyIconSize, Math.Max(10, dailyRowHeight * 0.92));
+        dailyIconSize = Math.Min(dailyIconSize, Math.Max(10, innerWidth * 0.14));
+        var dailyLabelMaxWidth = Math.Clamp(innerWidth * 0.52, 28, 460);
+        var dailyHighWidth = Math.Clamp(innerWidth * 0.14, 14, 140);
+        var dailyLowWidth = Math.Clamp(innerWidth * 0.11, 12, 120);
+        var dailyHighRightGap = Math.Clamp(innerWidth * 0.018, 1, 28);
         for (var i = 0; i < _dailyLabelBlocks.Length; i++)
         {
             _dailyLabelBlocks[i].FontSize = dailyLabelSize;
             _dailyHighBlocks[i].FontSize = dailyTempSize;
             _dailyLowBlocks[i].FontSize = dailyTempSize;
-            _dailyLabelBlocks[i].FontWeight = ToVariableWeight(Lerp(520, 600, Math.Clamp((scale - 0.50) / 1.2, 0, 1)));
-            _dailyHighBlocks[i].FontWeight = ToVariableWeight(Lerp(560, 640, Math.Clamp((scale - 0.50) / 1.2, 0, 1)));
-            _dailyLowBlocks[i].FontWeight = ToVariableWeight(Lerp(470, 560, Math.Clamp((scale - 0.50) / 1.2, 0, 1)));
+            _dailyLabelBlocks[i].FontWeight = ToVariableWeight(Lerp(520, 620, emphasis));
+            _dailyHighBlocks[i].FontWeight = ToVariableWeight(Lerp(560, 680, emphasis));
+            _dailyLowBlocks[i].FontWeight = ToVariableWeight(Lerp(470, 590, emphasis));
             _dailyLabelBlocks[i].MaxWidth = dailyLabelMaxWidth;
             _dailyHighBlocks[i].Width = dailyHighWidth;
             _dailyLowBlocks[i].Width = dailyLowWidth;
+            _dailyHighBlocks[i].Margin = new Thickness(0, 0, dailyHighRightGap, 0);
+            _dailyLowBlocks[i].Margin = new Thickness(0);
             _dailyHighBlocks[i].HorizontalAlignment = Avalonia.Layout.HorizontalAlignment.Right;
             _dailyLowBlocks[i].HorizontalAlignment = Avalonia.Layout.HorizontalAlignment.Right;
             _dailyHighBlocks[i].TextAlignment = TextAlignment.Right;
             _dailyLowBlocks[i].TextAlignment = TextAlignment.Right;
-            _dailyIconBlocks[i].Width = dailyIconSize;
-            _dailyIconBlocks[i].Height = dailyIconSize;
+            if (_dailyIconBlocks[i].Parent is Grid dailyRowGrid)
+            {
+                dailyRowGrid.ColumnSpacing = Math.Clamp(9 * dailyRowScale, 4, 18);
+            }
+
+            var dailyKind = i < _dailyIconKinds.Length
+                ? _dailyIconKinds[i]
+                : HyperOS3WeatherVisualKind.CloudyDay;
+            var dailyIconVisualSize = Math.Clamp(
+                dailyIconSize * ResolveDailyMiniIconScaleBoost(dailyKind),
+                8,
+                148);
+            dailyIconVisualSize = Math.Min(dailyIconVisualSize, Math.Max(10, dailyRowHeight * 0.94));
+            _dailyIconBlocks[i].Width = dailyIconVisualSize;
+            _dailyIconBlocks[i].Height = dailyIconVisualSize;
         }
     }
 
@@ -775,6 +882,94 @@ public partial class ExtendedWeatherWidget : UserControl, IDesktopComponentWidge
 
     private string L(string key, string fallback) => _localizationService.GetString(_languageCode, key, fallback);
 
+    private void InitializeMotionTransform()
+    {
+        BackgroundMotionLayer.RenderTransform = new TransformGroup
+        {
+            Children = new Transforms
+            {
+                _backgroundMotionScaleTransform,
+                _backgroundMotionTranslateTransform
+            }
+        };
+        SetMotionTransform(0, 0, 1.05);
+    }
+
+    private void SetMotionTransform(double translateX, double translateY, double scale)
+    {
+        _backgroundMotionScaleTransform.ScaleX = scale;
+        _backgroundMotionScaleTransform.ScaleY = scale;
+        _backgroundMotionTranslateTransform.X = translateX;
+        _backgroundMotionTranslateTransform.Y = translateY;
+    }
+
+    private void UpdateTimerState()
+    {
+        if (_isAttached && _isOnActivePage)
+        {
+            if (_autoRefreshEnabled && !_refreshTimer.IsEnabled)
+            {
+                _refreshTimer.Start();
+            }
+            else if (!_autoRefreshEnabled && _refreshTimer.IsEnabled)
+            {
+                _refreshTimer.Stop();
+            }
+
+            if (!_animationTimer.IsEnabled)
+            {
+                _animationTimer.Start();
+            }
+
+            return;
+        }
+
+        _refreshTimer.Stop();
+        _animationTimer.Stop();
+    }
+
+    private void ApplyAutoRefreshSettings()
+    {
+        var enabled = true;
+        var intervalMinutes = 12;
+
+        try
+        {
+            var snapshot = _componentSettingsService.Load();
+            enabled = snapshot.WeatherAutoRefreshEnabled;
+            intervalMinutes = NormalizeAutoRefreshIntervalMinutes(snapshot.WeatherAutoRefreshIntervalMinutes);
+        }
+        catch
+        {
+            // Keep fallback defaults.
+        }
+
+        _autoRefreshEnabled = enabled;
+        _refreshTimer.Interval = TimeSpan.FromMinutes(intervalMinutes);
+
+        if (_isAttached)
+        {
+            UpdateTimerState();
+        }
+    }
+
+    private static int NormalizeAutoRefreshIntervalMinutes(int minutes)
+    {
+        if (minutes <= 0)
+        {
+            return 12;
+        }
+
+        if (SupportedAutoRefreshIntervalsMinutes.Contains(minutes))
+        {
+            return minutes;
+        }
+
+        return SupportedAutoRefreshIntervalsMinutes
+            .OrderBy(value => Math.Abs(value - minutes))
+            .FirstOrDefault(12);
+    }
+
     private void CancelRefresh()
     {
         var cts = Interlocked.Exchange(ref _refreshCts, null);
@@ -784,6 +979,28 @@ public partial class ExtendedWeatherWidget : UserControl, IDesktopComponentWidge
 
     private static double ResolveScale(double width, double height) => Math.Clamp(Math.Min(Math.Clamp(width / 620d, 0.42, 2.4), Math.Clamp(height / 620d, 0.42, 2.4)), 0.42, 2.4);
     private static double Lerp(double from, double to, double t) => from + ((to - from) * t);
+    private static double ResolveHeroIconScaleBoost(HyperOS3WeatherVisualKind kind) =>
+        kind switch
+        {
+            HyperOS3WeatherVisualKind.RainLight or HyperOS3WeatherVisualKind.RainHeavy or HyperOS3WeatherVisualKind.Storm or HyperOS3WeatherVisualKind.Snow => 1.16,
+            HyperOS3WeatherVisualKind.ClearNight or HyperOS3WeatherVisualKind.CloudyNight => 1.08,
+            _ => 1.0
+        };
+
+    private static double ResolveDailyMiniIconScaleBoost(HyperOS3WeatherVisualKind kind) =>
+        kind switch
+        {
+            HyperOS3WeatherVisualKind.CloudyDay => 1.30,
+            HyperOS3WeatherVisualKind.CloudyNight => 1.28,
+            HyperOS3WeatherVisualKind.ClearDay => 1.26,
+            HyperOS3WeatherVisualKind.ClearNight => 1.24,
+            HyperOS3WeatherVisualKind.Fog => 1.18,
+            HyperOS3WeatherVisualKind.RainLight => 1.14,
+            HyperOS3WeatherVisualKind.RainHeavy => 1.12,
+            HyperOS3WeatherVisualKind.Snow => 1.12,
+            HyperOS3WeatherVisualKind.Storm => 1.08,
+            _ => 1.18
+        };
     private static FontWeight ToVariableWeight(double weight) => (FontWeight)(int)Math.Clamp(Math.Round(weight), 1, 1000);
     private static IBrush CreateSolidBrush(string colorHex) => new SolidColorBrush(Color.Parse(colorHex));
     private static IBrush CreateSolidBrush(string colorHex, byte alpha) { var c = Color.Parse(colorHex); return new SolidColorBrush(Color.FromArgb(alpha, c.R, c.G, c.B)); }

LanMountainDesktop/Views/Components/HourlyWeatherWidget.axaml

@@ -63,7 +63,7 @@
                                        FontFeatures="tnum"
                                        VerticalAlignment="Center"
                                        Margin="0,-2,0,0"
-                                       TextTrimming="CharacterEllipsis"
+                                       TextTrimming="None"
                                        MaxLines="1" />
 
                             <StackPanel Grid.Column="1"

LanMountainDesktop/Views/Components/HourlyWeatherWidget.axaml.cs

@@ -13,10 +13,11 @@ using Avalonia.Platform;
 using Avalonia.Threading;
 using LanMountainDesktop.Models;
 using LanMountainDesktop.Services;
+using LanMountainDesktop.Theme;
 
 namespace LanMountainDesktop.Views.Components;
 
-public partial class HourlyWeatherWidget : UserControl, IDesktopComponentWidget, ITimeZoneAwareComponentWidget, IWeatherInfoAwareComponentWidget
+public partial class HourlyWeatherWidget : UserControl, IDesktopComponentWidget, IDesktopPageVisibilityAwareComponentWidget, ITimeZoneAwareComponentWidget, IWeatherInfoAwareComponentWidget
 {
     private enum WeatherVisualKind
     {
@@ -81,6 +82,7 @@ public partial class HourlyWeatherWidget : UserControl, IDesktopComponentWidget,
         string TemperatureText);
 
     private static readonly IWeatherInfoService DefaultWeatherInfoService = new XiaomiWeatherService();
+    private static readonly IReadOnlyList<int> SupportedAutoRefreshIntervalsMinutes = RefreshIntervalCatalog.SupportedIntervalsMinutes;
 
     private readonly DispatcherTimer _refreshTimer = new()
     {
@@ -89,16 +91,19 @@ public partial class HourlyWeatherWidget : UserControl, IDesktopComponentWidget,
 
     private readonly DispatcherTimer _backgroundAnimationTimer = new()
     {
-        Interval = TimeSpan.FromMilliseconds(48)
+        Interval = FluttermotionToken.WeatherAnimationFrameInterval
     };
 
     private readonly AppSettingsService _settingsService = new();
+    private readonly ComponentSettingsService _componentSettingsService = new();
     private readonly LocalizationService _localizationService = new();
     private readonly Dictionary<WeatherVisualKind, IBrush> _backgroundBrushCache = new();
     private readonly Dictionary<HyperOS3WeatherVisualKind, IBrush> _particleBrushCache = new();
     private readonly List<Border> _particleVisuals = new();
     private readonly List<ParticleState> _particleStates = new();
     private readonly Random _particleRandom = new();
+    private readonly ScaleTransform _backgroundMotionScaleTransform = new(1, 1);
+    private readonly TranslateTransform _backgroundMotionTranslateTransform = new();
 
     private IWeatherInfoService _weatherInfoService = DefaultWeatherInfoService;
     private TimeZoneService? _timeZoneService;
@@ -110,7 +115,9 @@ public partial class HourlyWeatherWidget : UserControl, IDesktopComponentWidget,
     private double _animationPhase;
     private int _activeParticleCount;
     private bool _isAttached;
+    private bool _isOnActivePage = true;
     private bool _isRefreshing;
+    private bool _autoRefreshEnabled = true;
     private readonly TextBlock[] _hourlyTimeBlocks;
     private readonly Image[] _hourlyIconBlocks;
     private readonly TextBlock[] _hourlyTempBlocks;
@@ -118,6 +125,7 @@ public partial class HourlyWeatherWidget : UserControl, IDesktopComponentWidget,
     public HourlyWeatherWidget()
     {
         InitializeComponent();
+        InitializeMotionTransform();
         _hourlyTimeBlocks =
         [
             HourlyTime0, HourlyTime1, HourlyTime2, HourlyTime3, HourlyTime4, HourlyTime5
@@ -142,6 +150,7 @@ public partial class HourlyWeatherWidget : UserControl, IDesktopComponentWidget,
         ApplyVisualTheme(WeatherVisualKind.ClearDay);
         ApplyNotConfiguredState();
         ApplyCellSize(_currentCellSize);
+        ApplyAutoRefreshSettings();
     }
 
     private void ConfigureTextOverflowGuards()
@@ -159,13 +168,13 @@ public partial class HourlyWeatherWidget : UserControl, IDesktopComponentWidget,
         RangeTextBlock.MaxLines = 1;
 
         TemperatureTextBlock.TextWrapping = TextWrapping.NoWrap;
-        TemperatureTextBlock.TextTrimming = TextTrimming.CharacterEllipsis;
+        TemperatureTextBlock.TextTrimming = TextTrimming.None;
         TemperatureTextBlock.MaxLines = 1;
 
         foreach (var timeBlock in _hourlyTimeBlocks)
         {
             timeBlock.TextWrapping = TextWrapping.NoWrap;
-            timeBlock.TextTrimming = TextTrimming.CharacterEllipsis;
+            timeBlock.TextTrimming = TextTrimming.None;
             timeBlock.MaxLines = 1;
             timeBlock.TextAlignment = TextAlignment.Center;
         }
@@ -173,7 +182,7 @@ public partial class HourlyWeatherWidget : UserControl, IDesktopComponentWidget,
         foreach (var tempBlock in _hourlyTempBlocks)
         {
             tempBlock.TextWrapping = TextWrapping.NoWrap;
-            tempBlock.TextTrimming = TextTrimming.CharacterEllipsis;
+            tempBlock.TextTrimming = TextTrimming.None;
             tempBlock.MaxLines = 1;
             tempBlock.TextAlignment = TextAlignment.Center;
         }
@@ -200,7 +209,29 @@ public partial class HourlyWeatherWidget : UserControl, IDesktopComponentWidget,
     public void SetWeatherInfoService(IWeatherInfoService weatherInfoService)
     {
         _weatherInfoService = weatherInfoService ?? DefaultWeatherInfoService;
-        if (_isAttached)
+        if (_isAttached && _isOnActivePage)
+        {
+            _ = RefreshWeatherAsync(forceRefresh: false);
+        }
+    }
+
+    public void RefreshFromSettings()
+    {
+        ApplyAutoRefreshSettings();
+        if (_isAttached && _isOnActivePage)
+        {
+            _ = RefreshWeatherAsync(forceRefresh: true);
+        }
+    }
+
+    public void SetDesktopPageContext(bool isOnActivePage, bool isEditMode)
+    {
+        _ = isEditMode;
+        var wasOnActivePage = _isOnActivePage;
+        _isOnActivePage = isOnActivePage;
+        UpdateTimerState();
+
+        if (!wasOnActivePage && _isOnActivePage && _isAttached)
         {
             _ = RefreshWeatherAsync(forceRefresh: false);
         }
@@ -231,16 +262,18 @@ public partial class HourlyWeatherWidget : UserControl, IDesktopComponentWidget,
     private void OnAttachedToVisualTree(object? sender, VisualTreeAttachmentEventArgs e)
     {
         _isAttached = true;
-        _refreshTimer.Start();
-        _backgroundAnimationTimer.Start();
-        _ = RefreshWeatherAsync(forceRefresh: false);
+        ApplyAutoRefreshSettings();
+        UpdateTimerState();
+        if (_isOnActivePage)
+        {
+            _ = RefreshWeatherAsync(forceRefresh: false);
+        }
     }
 
     private void OnDetachedFromVisualTree(object? sender, VisualTreeAttachmentEventArgs e)
     {
         _isAttached = false;
-        _refreshTimer.Stop();
-        _backgroundAnimationTimer.Stop();
+        UpdateTimerState();
         CancelRefreshRequest();
     }
 
@@ -257,7 +290,7 @@ public partial class HourlyWeatherWidget : UserControl, IDesktopComponentWidget,
 
     private void OnBackgroundAnimationTick(object? sender, EventArgs e)
     {
-        if (!_isAttached)
+        if (!_isAttached || !_isOnActivePage)
         {
             return;
         }
@@ -320,7 +353,7 @@ public partial class HourlyWeatherWidget : UserControl, IDesktopComponentWidget,
 
     private async Task RefreshWeatherAsync(bool forceRefresh)
     {
-        if (!_isAttached || _isRefreshing)
+        if (!_isAttached || !_isOnActivePage || _isRefreshing)
         {
             return;
         }
@@ -822,7 +855,7 @@ public partial class HourlyWeatherWidget : UserControl, IDesktopComponentWidget,
     private void ApplyHourlyForecastItems(IReadOnlyList<HourlyForecastItem> items)
     {
         var fallbackIcon = HyperOS3WeatherAssetLoader.LoadImage(
-            HyperOS3WeatherTheme.ResolveIconAsset(ToThemeKind(_activeVisualKind)));
+            HyperOS3WeatherTheme.ResolveMiniIconAsset(ToThemeKind(_activeVisualKind)));
         for (var i = 0; i < _hourlyTimeBlocks.Length; i++)
         {
             if (i >= items.Count)
@@ -836,7 +869,7 @@ public partial class HourlyWeatherWidget : UserControl, IDesktopComponentWidget,
             var item = items[i];
             _hourlyTimeBlocks[i].Text = item.TimeLabel;
             _hourlyIconBlocks[i].Source = HyperOS3WeatherAssetLoader.LoadImage(
-                HyperOS3WeatherTheme.ResolveIconAsset(item.IconKind));
+                HyperOS3WeatherTheme.ResolveMiniIconAsset(item.IconKind));
             _hourlyTempBlocks[i].Text = item.TemperatureText;
         }
     }
@@ -1168,68 +1201,86 @@ public partial class HourlyWeatherWidget : UserControl, IDesktopComponentWidget,
     private void ApplyAdaptiveTypography()
     {
         var (layoutWidth, layoutHeight) = ResolveLayoutViewport();
-        var scaleX = Math.Clamp(layoutWidth / 608d, 0.58, 1.90);
-        var scaleY = Math.Clamp(layoutHeight / 288d, 0.58, 1.90);
         var innerWidth = Math.Max(120, layoutWidth);
-        var innerHeight = Math.Max(72, layoutHeight);
-        var compactness = Math.Clamp((1.0 - scaleY) / 0.55, 0, 1);
+        var innerHeight = Math.Max(56, layoutHeight);
+        var fitScale = Math.Clamp(Math.Min(innerWidth / 592d, innerHeight / 284d), 0.30, 3.20);
+        var cellScale = Math.Clamp(_currentCellSize / 44d, 0.34, 3.60);
+        var visualScale = Math.Clamp((fitScale * 0.72) + (cellScale * 0.28), 0.30, 3.60);
+        var emphasis = Math.Clamp((visualScale - 0.82) / 1.90, 0, 1);
 
-        ContentGrid.RowSpacing = Math.Clamp((4.2 - (compactness * 0.7)) * scaleY, 2, 8);
-        TopRowGrid.ColumnSpacing = Math.Clamp(8 * scaleX, 6, 13);
-        BottomInfoStack.Margin = new Thickness(0, 0, 0, Math.Clamp((1.0 - (compactness * 0.4)) * scaleY, 0, 2));
+        ContentGrid.RowSpacing = Math.Clamp(8 * fitScale, 1, 20);
+        TopRowGrid.ColumnSpacing = Math.Clamp(11 * fitScale, 3, 30);
+        BottomInfoStack.Margin = new Thickness(0, 0, 0, Math.Clamp(1.2 * fitScale, 0, 7));
 
-        var contentHeight = Math.Max(60, innerHeight - ContentGrid.RowSpacing);
-        var topZoneRatio = Math.Clamp(0.38 + (compactness * 0.09), 0.36, 0.50);
-        var topZoneHeight = Math.Clamp(contentHeight * topZoneRatio, 60, 170);
-        var bottomZoneHeight = Math.Max(42, contentHeight - topZoneHeight);
-        var topScaleH = Math.Clamp(topZoneHeight / 102d, 0.62, 2.0);
-        var topScaleW = Math.Clamp(innerWidth / 620d, 0.62, 2.0);
-        var topScale = Math.Clamp((topScaleH * 0.68) + (topScaleW * 0.32), 0.62, 2.0);
-        var bottomScaleH = Math.Clamp(bottomZoneHeight / 122d, 0.56, 2.0);
-        var bottomScale = Math.Clamp((bottomScaleH * 0.74) + (scaleX * 0.26), 0.56, 1.95);
-        var bodyHeight = bottomZoneHeight;
+        var contentHeight = Math.Max(36, innerHeight - ContentGrid.RowSpacing);
+        var topZoneHeight = Math.Clamp(contentHeight * 0.47, 24, Math.Max(24, contentHeight - 12));
+        var bottomZoneHeight = Math.Max(10, contentHeight - topZoneHeight);
+        if (ContentGrid.RowDefinitions.Count >= 2)
+        {
+            ContentGrid.RowDefinitions[0].Height = new GridLength(topZoneHeight, GridUnitType.Pixel);
+            ContentGrid.RowDefinitions[1].Height = new GridLength(1, GridUnitType.Star);
+        }
 
-        TemperatureTextBlock.FontSize = Math.Clamp(88 * topScale, 56, 132);
-        TemperatureTextBlock.FontWeight = ToVariableWeight(315);
-        TemperatureTextBlock.Margin = new Thickness(0, Math.Clamp(-1.2 * topScale, -4, 0), 0, 0);
-        TemperatureTextBlock.MaxWidth = Math.Clamp(innerWidth * 0.24, 88, 196);
+        var topScale = Math.Clamp(((topZoneHeight / 116d) * 0.42) + (visualScale * 0.86), 0.24, 3.90);
+        var bottomScale = Math.Clamp(((bottomZoneHeight / 156d) * 0.44) + (visualScale * 0.72), 0.24, 3.80);
+        var iconGrowth = Math.Clamp((visualScale - 0.88) / 1.70, 0, 1);
+        var iconScaleBoost = ResolveHeroIconScaleBoost(_activeVisualKind);
+        var iconSize = Math.Clamp(Lerp(88, 116, iconGrowth) * topScale * iconScaleBoost, 14, 360);
+        iconSize = Math.Min(iconSize, Math.Max(14, innerWidth * Lerp(0.22, 0.32, iconGrowth)));
+        var temperatureSample = string.IsNullOrWhiteSpace(TemperatureTextBlock.Text)
+            ? "00°"
+            : TemperatureTextBlock.Text.Trim();
+        var temperatureGlyphCount = Math.Clamp(temperatureSample.Length, 3, 6);
+        var temperatureMaxWidth = Math.Max(28, innerWidth - iconSize - TopRowGrid.ColumnSpacing - 4);
+        var rawTemperatureSize = Math.Clamp(Lerp(64, 92, iconGrowth) * topScale, 12, 320);
+        var fitTemperatureSize = temperatureMaxWidth / (temperatureGlyphCount * 0.62);
+        TemperatureTextBlock.FontSize = Math.Clamp(Math.Min(rawTemperatureSize, fitTemperatureSize), 9, 320);
+        TemperatureTextBlock.FontWeight = ToVariableWeight(Lerp(300, 360, emphasis));
+        TemperatureTextBlock.Margin = new Thickness(0, Math.Clamp(-2.0 * topScale, -10, 0), 0, 0);
+        TemperatureTextBlock.MaxWidth = Math.Clamp(temperatureMaxWidth, 28, Math.Max(280, innerWidth * 0.68));
 
         CityInfoBadge.Padding = new Thickness(0);
         CityInfoBadge.CornerRadius = new CornerRadius(0);
-        LocationIcon.FontSize = Math.Clamp(12 * topScale, 9, 17);
-        CityTextBlock.FontSize = Math.Clamp(18 * topScale, 11, 26);
-        CityTextBlock.FontWeight = ToVariableWeight(540);
-        CityTextBlock.MaxWidth = Math.Clamp(innerWidth * 0.36, 112, 300);
+        LocationIcon.FontSize = Math.Clamp(13 * topScale, 6, 52);
+        CityTextBlock.FontSize = Math.Clamp(18.5 * topScale, 7, 88);
+        CityTextBlock.FontWeight = ToVariableWeight(Lerp(530, 620, emphasis));
+        CityTextBlock.MaxWidth = Math.Clamp(innerWidth * 0.37, 34, 460);
 
         ConditionInfoBadge.Padding = new Thickness(0);
         ConditionInfoBadge.CornerRadius = new CornerRadius(0);
-        ConditionRangeStack.Spacing = Math.Clamp(7 * topScale, 4, 13);
-        ConditionTextBlock.FontSize = Math.Clamp(19 * topScale, 12, 27);
-        RangeTextBlock.FontSize = Math.Clamp(20 * topScale, 12, 30);
-        ConditionTextBlock.FontWeight = ToVariableWeight(600);
-        RangeTextBlock.FontWeight = ToVariableWeight(620);
-        ConditionTextBlock.MaxWidth = Math.Clamp(innerWidth * 0.24, 58, 220);
-        RangeTextBlock.MaxWidth = Math.Clamp(innerWidth * 0.30, 88, 270);
-        BottomInfoStack.Spacing = Math.Clamp(2.2 * topScale, 1, 6);
+        ConditionRangeStack.Spacing = Math.Clamp(8.5 * topScale, 1, 24);
+        ConditionTextBlock.FontSize = Math.Clamp(19 * topScale, 7, 78);
+        RangeTextBlock.FontSize = Math.Clamp(21 * topScale, 7, 84);
+        ConditionTextBlock.FontWeight = ToVariableWeight(Lerp(580, 660, emphasis));
+        RangeTextBlock.FontWeight = ToVariableWeight(Lerp(600, 680, emphasis));
+        ConditionTextBlock.MaxWidth = Math.Clamp(innerWidth * 0.24, 26, 320);
+        RangeTextBlock.MaxWidth = Math.Clamp(innerWidth * 0.31, 32, 360);
+        BottomInfoStack.Spacing = Math.Clamp(2.0 * topScale, 0.4, 14);
 
-        var iconSize = Math.Clamp(68 * topScale, 42, 98);
         WeatherIconImage.Width = iconSize;
         WeatherIconImage.Height = iconSize;
+        WeatherIconImage.Margin = new Thickness(0, Math.Clamp(-2.2 * topScale, -10, 0), 0, 0);
 
-        HourlyPanelBorder.Padding = new Thickness(0, Math.Clamp(1 * scaleY, 0, 2), 0, 0);
-        HourlyPanelBorder.Margin = new Thickness(0, Math.Clamp(1.2 * scaleY, 0, 3), 0, 0);
+        HourlyPanelBorder.Padding = new Thickness(0);
+        HourlyPanelBorder.Margin = new Thickness(0, Math.Clamp(6 * fitScale, 1, 24), 0, 0);
         HourlyPanelBorder.CornerRadius = new CornerRadius(0);
-        HourlyGrid.ColumnSpacing = Math.Clamp(7 * scaleX, 4, 11);
+        HourlyGrid.ColumnSpacing = Math.Clamp(4 * fitScale, 0.5, 24);
 
         var hourlyColumnCount = Math.Max(1, _hourlyTimeBlocks.Length);
         var hourlyInnerWidth = Math.Max(
-            96,
-            innerWidth - HourlyPanelBorder.Padding.Left - HourlyPanelBorder.Padding.Right - (HourlyGrid.ColumnSpacing * (hourlyColumnCount - 1)));
-        var hourlyCellWidth = Math.Max(34, hourlyInnerWidth / hourlyColumnCount);
-        var stackSpacing = Math.Clamp((1.6 + (bottomScale * 0.8)) * scaleY, 1, 4);
-        var hourlyTempSize = Math.Clamp(Math.Max(13, bodyHeight * 0.22) * (0.76 + (bottomScale * 0.24)), 13, 31);
-        var hourlyTimeSize = Math.Clamp(Math.Max(10, bodyHeight * 0.17) * (0.78 + (bottomScale * 0.22)), 10, 23);
-        var hourlyIconSize = Math.Clamp(Math.Max(14, bodyHeight * 0.25) * (0.78 + (bottomScale * 0.22)), 14, 35);
+            32,
+            innerWidth - (HourlyGrid.ColumnSpacing * (hourlyColumnCount - 1)));
+        var hourlyCellWidth = Math.Max(12, hourlyInnerWidth / hourlyColumnCount);
+        var hourlyCellScale = Math.Clamp(
+            Math.Min((bottomScale * 0.66) + (visualScale * 0.44), hourlyCellWidth / 74d),
+            0.22,
+            3.60);
+        var stackSpacing = Math.Clamp(2 * hourlyCellScale, 0.2, 10);
+        var hourlyTempSize = Math.Clamp(19.5 * hourlyCellScale, 6, 72);
+        var hourlyTimeSize = Math.Clamp(14.5 * hourlyCellScale, 6, 50);
+        var hourlyIconSize = Math.Clamp(42 * hourlyCellScale, 9, 136);
+        hourlyIconSize = Math.Min(hourlyIconSize, Math.Max(10, hourlyCellWidth * 0.86));
+        hourlyIconSize = Math.Min(hourlyIconSize, Math.Max(10, bottomZoneHeight * 0.52));
 
         for (var i = 0; i < _hourlyTimeBlocks.Length; i++)
         {
@@ -1237,10 +1288,10 @@ public partial class HourlyWeatherWidget : UserControl, IDesktopComponentWidget,
             _hourlyTimeBlocks[i].FontSize = hourlyTimeSize;
             _hourlyIconBlocks[i].Width = hourlyIconSize;
             _hourlyIconBlocks[i].Height = hourlyIconSize;
-            _hourlyTimeBlocks[i].MaxWidth = Math.Clamp(hourlyCellWidth, 34, 112);
-            _hourlyTempBlocks[i].MaxWidth = Math.Clamp(hourlyCellWidth, 34, 112);
-            _hourlyTimeBlocks[i].FontWeight = ToVariableWeight(500);
-            _hourlyTempBlocks[i].FontWeight = ToVariableWeight(590);
+            _hourlyTimeBlocks[i].MaxWidth = Math.Clamp(hourlyCellWidth, 12, 240);
+            _hourlyTempBlocks[i].MaxWidth = Math.Clamp(hourlyCellWidth, 12, 240);
+            _hourlyTimeBlocks[i].FontWeight = ToVariableWeight(Lerp(500, 600, emphasis));
+            _hourlyTempBlocks[i].FontWeight = ToVariableWeight(Lerp(580, 690, emphasis));
             if (_hourlyTimeBlocks[i].Parent is StackPanel hourlyStack)
             {
                 hourlyStack.Spacing = stackSpacing;
@@ -1253,10 +1304,20 @@ public partial class HourlyWeatherWidget : UserControl, IDesktopComponentWidget,
         return from + ((to - from) * t);
     }
 
+    private static double ResolveHeroIconScaleBoost(WeatherVisualKind kind)
+    {
+        return kind switch
+        {
+            WeatherVisualKind.RainLight or WeatherVisualKind.RainHeavy or WeatherVisualKind.Storm or WeatherVisualKind.Snow => 1.16,
+            WeatherVisualKind.ClearNight or WeatherVisualKind.CloudyNight => 1.08,
+            _ => 1.0
+        };
+    }
+
     private void SetMainWeatherIcon(WeatherVisualKind kind)
     {
         WeatherIconImage.Source = HyperOS3WeatherAssetLoader.LoadImage(
-            HyperOS3WeatherTheme.ResolveIconAsset(ToThemeKind(kind)));
+            HyperOS3WeatherTheme.ResolveHeroIconAsset(ToThemeKind(kind)));
     }
 
     private void SetLoadingSkeleton(bool isLoading)
@@ -1313,15 +1374,89 @@ public partial class HourlyWeatherWidget : UserControl, IDesktopComponentWidget,
 
     private void SetMotionTransform(double translateX, double translateY, double scale)
     {
-        var group = new TransformGroup
+        _backgroundMotionScaleTransform.ScaleX = scale;
+        _backgroundMotionScaleTransform.ScaleY = scale;
+        _backgroundMotionTranslateTransform.X = translateX;
+        _backgroundMotionTranslateTransform.Y = translateY;
+    }
+
+    private void InitializeMotionTransform()
+    {
+        BackgroundMotionLayer.RenderTransform = new TransformGroup
         {
             Children = new Transforms
             {
-                new ScaleTransform(scale, scale),
-                new TranslateTransform(translateX, translateY)
+                _backgroundMotionScaleTransform,
+                _backgroundMotionTranslateTransform
             }
         };
-        BackgroundMotionLayer.RenderTransform = group;
+    }
+
+    private void UpdateTimerState()
+    {
+        if (_isAttached && _isOnActivePage)
+        {
+            if (_autoRefreshEnabled && !_refreshTimer.IsEnabled)
+            {
+                _refreshTimer.Start();
+            }
+            else if (!_autoRefreshEnabled && _refreshTimer.IsEnabled)
+            {
+                _refreshTimer.Stop();
+            }
+
+            if (!_backgroundAnimationTimer.IsEnabled)
+            {
+                _backgroundAnimationTimer.Start();
+            }
+
+            return;
+        }
+
+        _refreshTimer.Stop();
+        _backgroundAnimationTimer.Stop();
+    }
+
+    private void ApplyAutoRefreshSettings()
+    {
+        var enabled = true;
+        var intervalMinutes = 12;
+
+        try
+        {
+            var snapshot = _componentSettingsService.Load();
+            enabled = snapshot.WeatherAutoRefreshEnabled;
+            intervalMinutes = NormalizeAutoRefreshIntervalMinutes(snapshot.WeatherAutoRefreshIntervalMinutes);
+        }
+        catch
+        {
+            // Keep fallback defaults.
+        }
+
+        _autoRefreshEnabled = enabled;
+        _refreshTimer.Interval = TimeSpan.FromMinutes(intervalMinutes);
+
+        if (_isAttached)
+        {
+            UpdateTimerState();
+        }
+    }
+
+    private static int NormalizeAutoRefreshIntervalMinutes(int minutes)
+    {
+        if (minutes <= 0)
+        {
+            return 12;
+        }
+
+        if (SupportedAutoRefreshIntervalsMinutes.Contains(minutes))
+        {
+            return minutes;
+        }
+
+        return SupportedAutoRefreshIntervalsMinutes
+            .OrderBy(value => Math.Abs(value - minutes))
+            .FirstOrDefault(12);
     }
 
     private void InitializeParticleVisuals()

LanMountainDesktop/Views/Components/HyperOS3WeatherTheme.cs

@@ -102,18 +102,32 @@ public static class HyperOS3WeatherTheme
             [HyperOS3WeatherVisualKind.Fog] = "avares://LanMountainDesktop/Assets/Weather/HyperOS3/hyper_sky_back.png"
         };
 
-    private static readonly IReadOnlyDictionary<HyperOS3WeatherVisualKind, string> IconAssets =
+    private static readonly IReadOnlyDictionary<HyperOS3WeatherVisualKind, string> HeroIconAssets =
         new Dictionary<HyperOS3WeatherVisualKind, string>
         {
-            [HyperOS3WeatherVisualKind.ClearDay] = "avares://LanMountainDesktop/Assets/Weather/HyperOS3/Icons/icon_sunny_day.webp",
-            [HyperOS3WeatherVisualKind.ClearNight] = "avares://LanMountainDesktop/Assets/Weather/HyperOS3/Icons/icon_moon_clear.webp",
-            [HyperOS3WeatherVisualKind.CloudyDay] = "avares://LanMountainDesktop/Assets/Weather/HyperOS3/Icons/icon_partly_cloudy_day.webp",
-            [HyperOS3WeatherVisualKind.CloudyNight] = "avares://LanMountainDesktop/Assets/Weather/HyperOS3/Icons/icon_partly_cloudy_night.webp",
-            [HyperOS3WeatherVisualKind.RainLight] = "avares://LanMountainDesktop/Assets/Weather/HyperOS3/Icons/icon_rain_light.webp",
-            [HyperOS3WeatherVisualKind.RainHeavy] = "avares://LanMountainDesktop/Assets/Weather/HyperOS3/Icons/icon_rain_heavy.webp",
-            [HyperOS3WeatherVisualKind.Storm] = "avares://LanMountainDesktop/Assets/Weather/HyperOS3/Icons/icon_thunder.webp",
-            [HyperOS3WeatherVisualKind.Snow] = "avares://LanMountainDesktop/Assets/Weather/HyperOS3/Icons/icon_snow.webp",
-            [HyperOS3WeatherVisualKind.Fog] = "avares://LanMountainDesktop/Assets/Weather/HyperOS3/Icons/icon_haze.webp"
+            [HyperOS3WeatherVisualKind.ClearDay] = "avares://LanMountainDesktop/Assets/Weather/HyperOS3/Icons/icon_hero_sun_soft.png",
+            [HyperOS3WeatherVisualKind.ClearNight] = "avares://LanMountainDesktop/Assets/Weather/HyperOS3/Icons/icon_hero_moon_soft.png",
+            [HyperOS3WeatherVisualKind.CloudyDay] = "avares://LanMountainDesktop/Assets/Weather/HyperOS3/Icons/icon_hero_sun_soft.png",
+            [HyperOS3WeatherVisualKind.CloudyNight] = "avares://LanMountainDesktop/Assets/Weather/HyperOS3/Icons/icon_hero_moon_soft.png",
+            [HyperOS3WeatherVisualKind.RainLight] = "avares://LanMountainDesktop/Assets/Weather/HyperOS3/Icons/icon_mini_rain_light_soft.png",
+            [HyperOS3WeatherVisualKind.RainHeavy] = "avares://LanMountainDesktop/Assets/Weather/HyperOS3/Icons/icon_mini_rain_heavy_soft.png",
+            [HyperOS3WeatherVisualKind.Storm] = "avares://LanMountainDesktop/Assets/Weather/HyperOS3/Icons/icon_mini_storm_soft.png",
+            [HyperOS3WeatherVisualKind.Snow] = "avares://LanMountainDesktop/Assets/Weather/HyperOS3/Icons/icon_mini_snow_soft.png",
+            [HyperOS3WeatherVisualKind.Fog] = "avares://LanMountainDesktop/Assets/Weather/HyperOS3/Icons/icon_hero_sun_soft.png"
+        };
+
+    private static readonly IReadOnlyDictionary<HyperOS3WeatherVisualKind, string> MiniIconAssets =
+        new Dictionary<HyperOS3WeatherVisualKind, string>
+        {
+            [HyperOS3WeatherVisualKind.ClearDay] = "avares://LanMountainDesktop/Assets/Weather/HyperOS3/Icons/icon_mini_partly_cloudy_day_soft.png",
+            [HyperOS3WeatherVisualKind.ClearNight] = "avares://LanMountainDesktop/Assets/Weather/HyperOS3/Icons/icon_mini_partly_cloudy_night_soft.png",
+            [HyperOS3WeatherVisualKind.CloudyDay] = "avares://LanMountainDesktop/Assets/Weather/HyperOS3/Icons/icon_mini_partly_cloudy_day_soft.png",
+            [HyperOS3WeatherVisualKind.CloudyNight] = "avares://LanMountainDesktop/Assets/Weather/HyperOS3/Icons/icon_mini_partly_cloudy_night_soft.png",
+            [HyperOS3WeatherVisualKind.RainLight] = "avares://LanMountainDesktop/Assets/Weather/HyperOS3/Icons/icon_mini_rain_light_soft.png",
+            [HyperOS3WeatherVisualKind.RainHeavy] = "avares://LanMountainDesktop/Assets/Weather/HyperOS3/Icons/icon_mini_rain_heavy_soft.png",
+            [HyperOS3WeatherVisualKind.Storm] = "avares://LanMountainDesktop/Assets/Weather/HyperOS3/Icons/icon_mini_storm_soft.png",
+            [HyperOS3WeatherVisualKind.Snow] = "avares://LanMountainDesktop/Assets/Weather/HyperOS3/Icons/icon_mini_snow_soft.png",
+            [HyperOS3WeatherVisualKind.Fog] = "avares://LanMountainDesktop/Assets/Weather/HyperOS3/Icons/icon_mini_fog_soft.png"
         };
 
     private static readonly IReadOnlyDictionary<HyperOS3WeatherVisualKind, HyperOS3WeatherPalette> Palettes =
@@ -319,7 +333,17 @@ public static class HyperOS3WeatherTheme
 
     public static string? ResolveIconAsset(HyperOS3WeatherVisualKind kind)
     {
-        return IconAssets.TryGetValue(kind, out var asset) ? asset : null;
+        return ResolveMiniIconAsset(kind);
+    }
+
+    public static string? ResolveHeroIconAsset(HyperOS3WeatherVisualKind kind)
+    {
+        return HeroIconAssets.TryGetValue(kind, out var asset) ? asset : null;
+    }
+
+    public static string? ResolveMiniIconAsset(HyperOS3WeatherVisualKind kind)
+    {
+        return MiniIconAssets.TryGetValue(kind, out var asset) ? asset : null;
     }
 
     public static string ResolveSunCoreAsset()

LanMountainDesktop/Views/Components/IDesktopComponentWidget.cs

@@ -23,6 +23,11 @@ public interface IRecommendationInfoAwareComponentWidget
     void SetRecommendationInfoService(IRecommendationInfoService recommendationInfoService);
 }
 
+public interface ICalculatorInfoAwareComponentWidget
+{
+    void SetCalculatorDataService(ICalculatorDataService calculatorDataService);
+}
+
 public interface IDesktopPageVisibilityAwareComponentWidget
 {
     void SetDesktopPageContext(bool isOnActivePage, bool isEditMode);

LanMountainDesktop/Views/Components/IfengNewsSettingsWindow.axaml

@@ -0,0 +1,113 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             mc:Ignorable="d"
+             d:DesignWidth="420"
+             d:DesignHeight="320"
+             x:Class="LanMountainDesktop.Views.Components.IfengNewsSettingsWindow">
+    <Border Background="{DynamicResource AdaptiveBackgroundBrush}"
+            Padding="16">
+        <Grid RowDefinitions="Auto,Auto,*"
+              RowSpacing="10">
+            <TextBlock x:Name="TitleTextBlock"
+                       Text="iFeng news settings"
+                       FontSize="18"
+                       FontWeight="SemiBold"
+                       Foreground="{DynamicResource AdaptiveTextPrimaryBrush}" />
+
+            <TextBlock x:Name="DescriptionTextBlock"
+                       Grid.Row="1"
+                       Text="Configure channel, auto refresh and refresh interval."
+                       FontSize="12"
+                       TextWrapping="Wrap"
+                       Foreground="{DynamicResource AdaptiveTextSecondaryBrush}" />
+
+            <ScrollViewer Grid.Row="2"
+                          HorizontalScrollBarVisibility="Disabled"
+                          VerticalScrollBarVisibility="Auto">
+                <StackPanel Spacing="10"
+                            Margin="0,0,6,0">
+                    <Border Background="{DynamicResource AdaptiveSurfaceRaisedBrush}"
+                            BorderBrush="{DynamicResource AdaptiveButtonBorderBrush}"
+                            BorderThickness="1"
+                            CornerRadius="12"
+                            Padding="12">
+                        <StackPanel Spacing="6">
+                            <TextBlock x:Name="ChannelLabelTextBlock"
+                                       Text="News channel"
+                                       Foreground="{DynamicResource AdaptiveTextPrimaryBrush}" />
+                            <ComboBox x:Name="ChannelComboBox"
+                                      HorizontalAlignment="Stretch"
+                                      MinWidth="0"
+                                      SelectionChanged="OnChannelSelectionChanged">
+                                <ComboBoxItem x:Name="ChannelComprehensiveItem"
+                                              Tag="Comprehensive"
+                                              Content="Comprehensive" />
+                                <ComboBoxItem x:Name="ChannelMainlandItem"
+                                              Tag="Mainland"
+                                              Content="China Mainland" />
+                                <ComboBoxItem x:Name="ChannelTaiwanItem"
+                                              Tag="Taiwan"
+                                              Content="Taiwan" />
+                            </ComboBox>
+                        </StackPanel>
+                    </Border>
+
+                    <Border Background="{DynamicResource AdaptiveSurfaceRaisedBrush}"
+                            BorderBrush="{DynamicResource AdaptiveButtonBorderBrush}"
+                            BorderThickness="1"
+                            CornerRadius="12"
+                            Padding="12">
+                        <StackPanel Spacing="6">
+                            <TextBlock x:Name="AutoRefreshLabelTextBlock"
+                                       Text="Auto refresh"
+                                       Foreground="{DynamicResource AdaptiveTextPrimaryBrush}" />
+                            <CheckBox x:Name="AutoRefreshCheckBox"
+                                      Content="Enable auto refresh"
+                                      Checked="OnAutoRefreshChanged"
+                                      Unchecked="OnAutoRefreshChanged" />
+                        </StackPanel>
+                    </Border>
+
+                    <Border x:Name="FrequencyCardBorder"
+                            Background="{DynamicResource AdaptiveSurfaceRaisedBrush}"
+                            BorderBrush="{DynamicResource AdaptiveButtonBorderBrush}"
+                            BorderThickness="1"
+                            CornerRadius="12"
+                            Padding="12"
+                            IsVisible="False">
+                        <StackPanel Spacing="6">
+                            <TextBlock x:Name="FrequencyLabelTextBlock"
+                                       Text="Refresh interval"
+                                       Foreground="{DynamicResource AdaptiveTextPrimaryBrush}" />
+                            <ComboBox x:Name="FrequencyComboBox"
+                                      HorizontalAlignment="Stretch"
+                                      MinWidth="0"
+                                      SelectionChanged="OnFrequencySelectionChanged">
+                                <ComboBoxItem x:Name="Frequency5mItem"
+                                              Tag="5"
+                                              Content="5 min" />
+                                <ComboBoxItem x:Name="Frequency10mItem"
+                                              Tag="10"
+                                              Content="10 min" />
+                                <ComboBoxItem x:Name="Frequency15mItem"
+                                              Tag="15"
+                                              Content="15 min" />
+                                <ComboBoxItem x:Name="Frequency20mItem"
+                                              Tag="20"
+                                              Content="20 min" />
+                                <ComboBoxItem x:Name="Frequency30mItem"
+                                              Tag="30"
+                                              Content="30 min" />
+                                <ComboBoxItem x:Name="Frequency1hItem"
+                                              Tag="60"
+                                              Content="1 hour" />
+                            </ComboBox>
+                        </StackPanel>
+                    </Border>
+                </StackPanel>
+            </ScrollViewer>
+        </Grid>
+    </Border>
+</UserControl>

LanMountainDesktop/Views/Components/IfengNewsSettingsWindow.axaml.cs

@@ -0,0 +1,194 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Avalonia.Controls;
+using Avalonia.Controls.Primitives;
+using Avalonia.Interactivity;
+using LanMountainDesktop.Models;
+using LanMountainDesktop.Services;
+
+namespace LanMountainDesktop.Views.Components;
+
+public partial class IfengNewsSettingsWindow : UserControl
+{
+    private static readonly IReadOnlyList<int> SupportedIntervals = RefreshIntervalCatalog.SupportedIntervalsMinutes;
+
+    private readonly AppSettingsService _appSettingsService = new();
+    private readonly ComponentSettingsService _componentSettingsService = new();
+    private readonly LocalizationService _localizationService = new();
+    private bool _suppressEvents;
+    private string _languageCode = "zh-CN";
+
+    public event EventHandler? SettingsChanged;
+
+    public IfengNewsSettingsWindow()
+    {
+        InitializeComponent();
+        InitializeFrequencyOptions();
+        LoadState();
+        ApplyLocalization();
+    }
+
+    private void LoadState()
+    {
+        var appSnapshot = _appSettingsService.Load();
+        var componentSnapshot = _componentSettingsService.Load();
+        _languageCode = _localizationService.NormalizeLanguageCode(appSnapshot.LanguageCode);
+
+        var channelType = IfengNewsChannelTypes.Normalize(componentSnapshot.IfengNewsChannelType);
+        var enabled = componentSnapshot.IfengNewsAutoRefreshEnabled;
+        var interval = NormalizeInterval(componentSnapshot.IfengNewsAutoRefreshIntervalMinutes);
+
+        _suppressEvents = true;
+        SelectChannelType(channelType);
+        AutoRefreshCheckBox.IsChecked = enabled;
+        SelectInterval(interval);
+        FrequencyCardBorder.IsVisible = enabled;
+        _suppressEvents = false;
+    }
+
+    private void ApplyLocalization()
+    {
+        TitleTextBlock.Text = L("ifeng.settings.title", "iFeng news settings");
+        DescriptionTextBlock.Text = L("ifeng.settings.desc", "Configure channel, auto refresh and refresh interval.");
+        ChannelLabelTextBlock.Text = L("ifeng.settings.channel_label", "News channel");
+        ChannelComprehensiveItem.Content = L("ifeng.settings.channel_comprehensive", "Comprehensive");
+        ChannelMainlandItem.Content = L("ifeng.settings.channel_mainland", "China Mainland");
+        ChannelTaiwanItem.Content = L("ifeng.settings.channel_taiwan", "Taiwan");
+        AutoRefreshLabelTextBlock.Text = L("ifeng.settings.auto_refresh_label", "Auto refresh");
+        AutoRefreshCheckBox.Content = L("ifeng.settings.auto_refresh_enabled", "Enable auto refresh");
+        FrequencyLabelTextBlock.Text = L("ifeng.settings.frequency_label", "Refresh interval");
+        ApplyFrequencyLocalization();
+    }
+
+    private void OnChannelSelectionChanged(object? sender, SelectionChangedEventArgs e)
+    {
+        _ = sender;
+        _ = e;
+        if (_suppressEvents)
+        {
+            return;
+        }
+
+        SaveState();
+    }
+
+    private void OnAutoRefreshChanged(object? sender, RoutedEventArgs e)
+    {
+        _ = sender;
+        _ = e;
+        if (_suppressEvents)
+        {
+            return;
+        }
+
+        var enabled = AutoRefreshCheckBox.IsChecked == true;
+        FrequencyCardBorder.IsVisible = enabled;
+        SaveState();
+    }
+
+    private void OnFrequencySelectionChanged(object? sender, SelectionChangedEventArgs e)
+    {
+        _ = sender;
+        _ = e;
+        if (_suppressEvents)
+        {
+            return;
+        }
+
+        SaveState();
+    }
+
+    private void SaveState()
+    {
+        var snapshot = _componentSettingsService.Load();
+        snapshot.IfengNewsChannelType = GetSelectedChannelType();
+        snapshot.IfengNewsAutoRefreshEnabled = AutoRefreshCheckBox.IsChecked == true;
+        snapshot.IfengNewsAutoRefreshIntervalMinutes = GetSelectedInterval();
+        _componentSettingsService.Save(snapshot);
+        SettingsChanged?.Invoke(this, EventArgs.Empty);
+    }
+
+    private string GetSelectedChannelType()
+    {
+        if (ChannelComboBox.SelectedItem is ComboBoxItem item &&
+            item.Tag is string channelTag)
+        {
+            return IfengNewsChannelTypes.Normalize(channelTag);
+        }
+
+        return IfengNewsChannelTypes.Comprehensive;
+    }
+
+    private int GetSelectedInterval()
+    {
+        if (FrequencyComboBox.SelectedItem is ComboBoxItem item &&
+            item.Tag is string tagText &&
+            int.TryParse(tagText, out var minutes))
+        {
+            return NormalizeInterval(minutes);
+        }
+
+        return 20;
+    }
+
+    private void SelectChannelType(string channelType)
+    {
+        var normalizedChannelType = IfengNewsChannelTypes.Normalize(channelType);
+        var selected = ChannelComboBox.Items
+            .OfType<ComboBoxItem>()
+            .FirstOrDefault(item =>
+                item.Tag is string channelTag &&
+                string.Equals(IfengNewsChannelTypes.Normalize(channelTag), normalizedChannelType, StringComparison.OrdinalIgnoreCase));
+        ChannelComboBox.SelectedItem = selected ?? ChannelComboBox.Items.OfType<ComboBoxItem>().FirstOrDefault();
+    }
+
+    private void SelectInterval(int intervalMinutes)
+    {
+        var selected = FrequencyComboBox.Items
+            .OfType<ComboBoxItem>()
+            .FirstOrDefault(item =>
+                item.Tag is string tagText &&
+                int.TryParse(tagText, out var minutes) &&
+                minutes == intervalMinutes);
+        FrequencyComboBox.SelectedItem = selected ?? FrequencyComboBox.Items.OfType<ComboBoxItem>().FirstOrDefault();
+    }
+
+    private static int NormalizeInterval(int minutes)
+    {
+        return RefreshIntervalCatalog.Normalize(minutes, 20);
+    }
+
+    private void InitializeFrequencyOptions()
+    {
+        FrequencyComboBox.Items.Clear();
+        foreach (var minutes in SupportedIntervals)
+        {
+            FrequencyComboBox.Items.Add(new ComboBoxItem
+            {
+                Tag = minutes.ToString(),
+                Content = RefreshIntervalCatalog.ToEnglishFallbackLabel(minutes)
+            });
+        }
+    }
+
+    private void ApplyFrequencyLocalization()
+    {
+        foreach (var item in FrequencyComboBox.Items.OfType<ComboBoxItem>())
+        {
+            if (item.Tag is not string tagText ||
+                !int.TryParse(tagText, out var minutes))
+            {
+                continue;
+            }
+
+            var key = $"refresh.frequency.{RefreshIntervalCatalog.ToLocalizationKeySuffix(minutes)}";
+            item.Content = L(key, RefreshIntervalCatalog.ToEnglishFallbackLabel(minutes));
+        }
+    }
+
+    private string L(string key, string fallback)
+    {
+        return _localizationService.GetString(_languageCode, key, fallback);
+    }
+}

LanMountainDesktop/Views/Components/IfengNewsWidget.axaml

@@ -0,0 +1,196 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             xmlns:fi="using:FluentIcons.Avalonia"
+             mc:Ignorable="d"
+             d:DesignWidth="640"
+             d:DesignHeight="640"
+             x:Class="LanMountainDesktop.Views.Components.IfengNewsWidget">
+
+    <Border x:Name="RootBorder"
+            CornerRadius="32"
+            Background="Transparent"
+            ClipToBounds="True"
+            BorderThickness="0"
+            Padding="0">
+        <Grid>
+            <Border x:Name="CardBorder"
+                    Background="#FCFCFD"
+                    CornerRadius="32"
+                    BorderBrush="Transparent"
+                    BorderThickness="0"
+                    Padding="14,14,14,14">
+                <Grid x:Name="ContentGrid"
+                      RowDefinitions="Auto,Auto,Auto,Auto,Auto"
+                      RowSpacing="8">
+                    <Grid x:Name="HeaderGrid"
+                          Grid.Row="0"
+                          ColumnDefinitions="*,Auto"
+                          ColumnSpacing="10">
+                        <TextBlock x:Name="BrandTextBlock"
+                                   Text="凤凰网新闻"
+                                   Foreground="#E24B2D"
+                                   FontSize="28"
+                                   FontWeight="Bold"
+                                   VerticalAlignment="Center"
+                                   TextTrimming="CharacterEllipsis" />
+
+                        <Button x:Name="RefreshButton"
+                                Grid.Column="1"
+                                Width="36"
+                                Height="36"
+                                CornerRadius="18"
+                                Background="#EFF1F5"
+                                BorderBrush="Transparent"
+                                BorderThickness="0"
+                                Padding="0"
+                                Focusable="False"
+                                ToolTip.Tip="刷新"
+                                Click="OnRefreshButtonClick">
+                            <fi:SymbolIcon x:Name="RefreshGlyphIcon"
+                                           Symbol="ArrowClockwise"
+                                           IconVariant="Regular"
+                                           Foreground="#5E6671"
+                                           FontSize="16"
+                                           HorizontalAlignment="Center"
+                                           VerticalAlignment="Center" />
+                        </Button>
+                    </Grid>
+
+                    <Border x:Name="NewsItem1Host"
+                            Grid.Row="1"
+                            Tag="0"
+                            Background="Transparent"
+                            Padding="0,2"
+                            PointerPressed="OnNewsItemPointerPressed">
+                        <Grid x:Name="NewsItem1Grid"
+                              ColumnDefinitions="*,Auto"
+                              ColumnSpacing="10">
+                            <TextBlock x:Name="NewsItem1TextBlock"
+                                       Text="新闻标题"
+                                       Foreground="#202327"
+                                       FontSize="22"
+                                       FontWeight="SemiBold"
+                                       TextWrapping="Wrap"
+                                       TextTrimming="CharacterEllipsis"
+                                       MaxLines="2"
+                                       VerticalAlignment="Top" />
+                            <Border x:Name="NewsItem1ImageHost"
+                                    Grid.Column="1"
+                                    Width="148"
+                                    Height="84"
+                                    CornerRadius="12"
+                                    ClipToBounds="True"
+                                    Background="#E6E8EC">
+                                <Image x:Name="NewsItem1Image"
+                                       Stretch="UniformToFill" />
+                            </Border>
+                        </Grid>
+                    </Border>
+
+                    <Border x:Name="NewsItem2Host"
+                            Grid.Row="2"
+                            Tag="1"
+                            Background="Transparent"
+                            Padding="0,2"
+                            PointerPressed="OnNewsItemPointerPressed">
+                        <Grid x:Name="NewsItem2Grid"
+                              ColumnDefinitions="*,Auto"
+                              ColumnSpacing="10">
+                            <TextBlock x:Name="NewsItem2TextBlock"
+                                       Text="新闻标题"
+                                       Foreground="#202327"
+                                       FontSize="22"
+                                       FontWeight="SemiBold"
+                                       TextWrapping="Wrap"
+                                       TextTrimming="CharacterEllipsis"
+                                       MaxLines="2"
+                                       VerticalAlignment="Top" />
+                            <Border x:Name="NewsItem2ImageHost"
+                                    Grid.Column="1"
+                                    Width="148"
+                                    Height="84"
+                                    CornerRadius="12"
+                                    ClipToBounds="True"
+                                    Background="#E6E8EC">
+                                <Image x:Name="NewsItem2Image"
+                                       Stretch="UniformToFill" />
+                            </Border>
+                        </Grid>
+                    </Border>
+
+                    <Border x:Name="NewsItem3Host"
+                            Grid.Row="3"
+                            Tag="2"
+                            Background="Transparent"
+                            Padding="0,2"
+                            PointerPressed="OnNewsItemPointerPressed">
+                        <Grid x:Name="NewsItem3Grid"
+                              ColumnDefinitions="*,Auto"
+                              ColumnSpacing="10">
+                            <TextBlock x:Name="NewsItem3TextBlock"
+                                       Text="新闻标题"
+                                       Foreground="#202327"
+                                       FontSize="22"
+                                       FontWeight="SemiBold"
+                                       TextWrapping="Wrap"
+                                       TextTrimming="CharacterEllipsis"
+                                       MaxLines="2"
+                                       VerticalAlignment="Top" />
+                            <Border x:Name="NewsItem3ImageHost"
+                                    Grid.Column="1"
+                                    Width="148"
+                                    Height="84"
+                                    CornerRadius="12"
+                                    ClipToBounds="True"
+                                    Background="#E6E8EC">
+                                <Image x:Name="NewsItem3Image"
+                                       Stretch="UniformToFill" />
+                            </Border>
+                        </Grid>
+                    </Border>
+
+                    <Border x:Name="NewsItem4Host"
+                            Grid.Row="4"
+                            Tag="3"
+                            Background="Transparent"
+                            Padding="0,2"
+                            PointerPressed="OnNewsItemPointerPressed">
+                        <Grid x:Name="NewsItem4Grid"
+                              ColumnDefinitions="*,Auto"
+                              ColumnSpacing="10">
+                            <TextBlock x:Name="NewsItem4TextBlock"
+                                       Text="新闻标题"
+                                       Foreground="#202327"
+                                       FontSize="22"
+                                       FontWeight="SemiBold"
+                                       TextWrapping="Wrap"
+                                       TextTrimming="CharacterEllipsis"
+                                       MaxLines="2"
+                                       VerticalAlignment="Top" />
+                            <Border x:Name="NewsItem4ImageHost"
+                                    Grid.Column="1"
+                                    Width="148"
+                                    Height="84"
+                                    CornerRadius="12"
+                                    ClipToBounds="True"
+                                    Background="#E6E8EC">
+                                <Image x:Name="NewsItem4Image"
+                                       Stretch="UniformToFill" />
+                            </Border>
+                        </Grid>
+                    </Border>
+                </Grid>
+            </Border>
+
+            <TextBlock x:Name="StatusTextBlock"
+                       IsVisible="False"
+                       Text="Loading"
+                       Foreground="#6A6F77"
+                       FontSize="16"
+                       HorizontalAlignment="Center"
+                       VerticalAlignment="Center" />
+        </Grid>
+    </Border>
+</UserControl>

LanMountainDesktop/Views/Components/IfengNewsWidget.axaml.cs

@@ -0,0 +1,647 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.IO;
+using System.Linq;
+using System.Net.Http;
+using System.Text.RegularExpressions;
+using System.Threading;
+using System.Threading.Tasks;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Input;
+using Avalonia.Interactivity;
+using Avalonia.Media;
+using Avalonia.Media.Imaging;
+using Avalonia.Threading;
+using LanMountainDesktop.Models;
+using LanMountainDesktop.Services;
+
+namespace LanMountainDesktop.Views.Components;
+
+public partial class IfengNewsWidget : UserControl, IDesktopComponentWidget, IRecommendationInfoAwareComponentWidget
+{
+    private static readonly Regex MultiWhitespaceRegex = new(@"\s+", RegexOptions.Compiled);
+    private static readonly FontFamily MiSansFontFamily = new("MiSans VF, avares://LanMountainDesktop/Assets/Fonts#MiSans");
+    private static readonly IRecommendationInfoService DefaultRecommendationService = new RecommendationDataService();
+    private static readonly HttpClient ImageHttpClient = new()
+    {
+        Timeout = TimeSpan.FromSeconds(8)
+    };
+
+    private const string BrowserUserAgent =
+        "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0 Safari/537.36";
+
+    private const double BaseCellSize = 48d;
+    private const int BaseWidthCells = 4;
+    private const int BaseHeightCells = 4;
+    private const int MaxDisplayItemCount = 4;
+    private static readonly IReadOnlyList<int> SupportedAutoRefreshIntervalsMinutes = RefreshIntervalCatalog.SupportedIntervalsMinutes;
+
+    private readonly DispatcherTimer _refreshTimer = new()
+    {
+        Interval = TimeSpan.FromMinutes(20)
+    };
+
+    private readonly AppSettingsService _appSettingsService = new();
+    private readonly ComponentSettingsService _componentSettingsService = new();
+    private readonly LocalizationService _localizationService = new();
+    private readonly List<DailyNewsItemSnapshot> _activeItems = [];
+    private readonly List<NewsItemVisual> _itemVisuals = [];
+    private readonly Bitmap?[] _newsBitmaps = new Bitmap?[MaxDisplayItemCount];
+
+    private IRecommendationInfoService _recommendationService = DefaultRecommendationService;
+    private CancellationTokenSource? _refreshCts;
+    private string _languageCode = "zh-CN";
+    private string _channelType = IfengNewsChannelTypes.Comprehensive;
+    private double _currentCellSize = BaseCellSize;
+    private bool _isAttached;
+    private bool _isRefreshing;
+    private bool _autoRefreshEnabled = true;
+
+    private sealed record NewsItemVisual(
+        Border Host,
+        Grid RowGrid,
+        TextBlock TitleTextBlock,
+        Border ImageHost,
+        Image ImageControl);
+
+    public IfengNewsWidget()
+    {
+        InitializeComponent();
+
+        BrandTextBlock.FontFamily = MiSansFontFamily;
+        NewsItem1TextBlock.FontFamily = MiSansFontFamily;
+        NewsItem2TextBlock.FontFamily = MiSansFontFamily;
+        NewsItem3TextBlock.FontFamily = MiSansFontFamily;
+        NewsItem4TextBlock.FontFamily = MiSansFontFamily;
+        StatusTextBlock.FontFamily = MiSansFontFamily;
+
+        _itemVisuals.Add(new NewsItemVisual(NewsItem1Host, NewsItem1Grid, NewsItem1TextBlock, NewsItem1ImageHost, NewsItem1Image));
+        _itemVisuals.Add(new NewsItemVisual(NewsItem2Host, NewsItem2Grid, NewsItem2TextBlock, NewsItem2ImageHost, NewsItem2Image));
+        _itemVisuals.Add(new NewsItemVisual(NewsItem3Host, NewsItem3Grid, NewsItem3TextBlock, NewsItem3ImageHost, NewsItem3Image));
+        _itemVisuals.Add(new NewsItemVisual(NewsItem4Host, NewsItem4Grid, NewsItem4TextBlock, NewsItem4ImageHost, NewsItem4Image));
+
+        _refreshTimer.Tick += OnRefreshTimerTick;
+        AttachedToVisualTree += OnAttachedToVisualTree;
+        DetachedFromVisualTree += OnDetachedFromVisualTree;
+        SizeChanged += OnSizeChanged;
+
+        ApplyCellSize(_currentCellSize);
+        UpdateLanguageCode();
+        ApplyAutoRefreshSettings();
+        ApplyLoadingState();
+        UpdateRefreshButtonState();
+    }
+
+    public void ApplyCellSize(double cellSize)
+    {
+        _currentCellSize = Math.Max(1, cellSize);
+        UpdateAdaptiveLayout();
+    }
+
+    public void SetRecommendationInfoService(IRecommendationInfoService recommendationInfoService)
+    {
+        _recommendationService = recommendationInfoService ?? DefaultRecommendationService;
+        if (_isAttached)
+        {
+            _ = RefreshNewsAsync(forceRefresh: false);
+        }
+    }
+
+    public void RefreshFromSettings()
+    {
+        _recommendationService.ClearCache();
+        ApplyAutoRefreshSettings();
+        if (_isAttached)
+        {
+            _ = RefreshNewsAsync(forceRefresh: true);
+        }
+    }
+
+    private void OnAttachedToVisualTree(object? sender, VisualTreeAttachmentEventArgs e)
+    {
+        _isAttached = true;
+        ApplyAutoRefreshSettings();
+        UpdateRefreshButtonState();
+        _ = RefreshNewsAsync(forceRefresh: false);
+    }
+
+    private void OnDetachedFromVisualTree(object? sender, VisualTreeAttachmentEventArgs e)
+    {
+        _isAttached = false;
+        _refreshTimer.Stop();
+        CancelRefreshRequest();
+        DisposeNewsBitmaps();
+        UpdateRefreshButtonState();
+    }
+
+    private void OnSizeChanged(object? sender, SizeChangedEventArgs e)
+    {
+        ApplyCellSize(_currentCellSize);
+    }
+
+    private async void OnRefreshTimerTick(object? sender, EventArgs e)
+    {
+        await RefreshNewsAsync(forceRefresh: true);
+    }
+
+    private async void OnRefreshButtonClick(object? sender, RoutedEventArgs e)
+    {
+        _ = sender;
+        await RefreshNewsAsync(forceRefresh: true);
+        e.Handled = true;
+    }
+
+    private void OnNewsItemPointerPressed(object? sender, PointerPressedEventArgs e)
+    {
+        if (!e.GetCurrentPoint(this).Properties.IsLeftButtonPressed ||
+            sender is not Border host ||
+            host.Tag is null ||
+            !int.TryParse(host.Tag.ToString(), out var index) ||
+            index < 0 ||
+            index >= _activeItems.Count)
+        {
+            return;
+        }
+
+        TryOpenUrl(_activeItems[index].Url);
+        e.Handled = true;
+    }
+
+    private async Task RefreshNewsAsync(bool forceRefresh)
+    {
+        if (!_isAttached || _isRefreshing)
+        {
+            return;
+        }
+
+        _isRefreshing = true;
+        UpdateLanguageCode();
+        UpdateRefreshButtonState();
+
+        var cts = new CancellationTokenSource();
+        var previous = Interlocked.Exchange(ref _refreshCts, cts);
+        previous?.Cancel();
+        previous?.Dispose();
+
+        try
+        {
+            var query = new IfengNewsQuery(
+                Locale: _languageCode,
+                ItemCount: MaxDisplayItemCount,
+                ChannelType: _channelType,
+                ForceRefresh: forceRefresh);
+            var result = await _recommendationService.GetIfengNewsAsync(query, cts.Token);
+            if (!_isAttached || cts.IsCancellationRequested)
+            {
+                return;
+            }
+
+            if (!result.Success || result.Data is null)
+            {
+                ApplyFailedState();
+                return;
+            }
+
+            await ApplySnapshotAsync(result.Data, cts.Token);
+        }
+        catch (OperationCanceledException)
+        {
+            // Ignore canceled requests.
+        }
+        catch
+        {
+            if (_isAttached && !cts.IsCancellationRequested)
+            {
+                ApplyFailedState();
+            }
+        }
+        finally
+        {
+            if (ReferenceEquals(_refreshCts, cts))
+            {
+                _refreshCts = null;
+            }
+
+            cts.Dispose();
+            _isRefreshing = false;
+            UpdateRefreshButtonState();
+        }
+    }
+
+    private async Task ApplySnapshotAsync(DailyNewsSnapshot snapshot, CancellationToken cancellationToken)
+    {
+        BrandTextBlock.Text = L("ifeng.widget.brand", "凤凰网新闻");
+        ToolTip.SetTip(RefreshButton, L("ifeng.widget.refresh_tooltip", "刷新"));
+
+        _activeItems.Clear();
+        foreach (var item in snapshot.Items)
+        {
+            if (string.IsNullOrWhiteSpace(item.Title) || string.IsNullOrWhiteSpace(item.Url))
+            {
+                continue;
+            }
+
+            _activeItems.Add(item);
+            if (_activeItems.Count >= MaxDisplayItemCount)
+            {
+                break;
+            }
+        }
+
+        var fallbackText = L("ifeng.widget.fallback_item", "暂无新闻");
+        for (var i = 0; i < _itemVisuals.Count; i++)
+        {
+            var visual = _itemVisuals[i];
+            visual.Host.IsVisible = true;
+            visual.TitleTextBlock.Text = i < _activeItems.Count
+                ? NormalizeCompactText(_activeItems[i].Title)
+                : fallbackText;
+            SetNewsBitmap(i, null);
+        }
+
+        StatusTextBlock.IsVisible = false;
+        UpdateInteractionState();
+        UpdateAdaptiveLayout();
+
+        var tasks = Enumerable.Range(0, MaxDisplayItemCount)
+            .Select(index => TryDownloadBitmapAsync(
+                index < _activeItems.Count ? _activeItems[index].ImageUrl : null,
+                cancellationToken))
+            .ToArray();
+        var bitmaps = await Task.WhenAll(tasks);
+        if (cancellationToken.IsCancellationRequested || !_isAttached)
+        {
+            foreach (var bitmap in bitmaps)
+            {
+                bitmap?.Dispose();
+            }
+
+            return;
+        }
+
+        for (var i = 0; i < bitmaps.Length; i++)
+        {
+            SetNewsBitmap(i, bitmaps[i]);
+        }
+    }
+
+    private void ApplyLoadingState()
+    {
+        BrandTextBlock.Text = L("ifeng.widget.brand", "凤凰网新闻");
+        ToolTip.SetTip(RefreshButton, L("ifeng.widget.refresh_tooltip", "刷新"));
+
+        _activeItems.Clear();
+        var loadingText = L("ifeng.widget.loading_item", "加载中...");
+        for (var i = 0; i < _itemVisuals.Count; i++)
+        {
+            var visual = _itemVisuals[i];
+            visual.Host.IsVisible = true;
+            visual.TitleTextBlock.Text = loadingText;
+            SetNewsBitmap(i, null);
+        }
+
+        StatusTextBlock.Text = L("ifeng.widget.loading", "加载中...");
+        StatusTextBlock.IsVisible = true;
+        UpdateInteractionState();
+        UpdateAdaptiveLayout();
+    }
+
+    private void ApplyFailedState()
+    {
+        BrandTextBlock.Text = L("ifeng.widget.brand", "凤凰网新闻");
+        ToolTip.SetTip(RefreshButton, L("ifeng.widget.refresh_tooltip", "刷新"));
+
+        _activeItems.Clear();
+        var fallbackText = L("ifeng.widget.fallback_item", "暂无新闻");
+        for (var i = 0; i < _itemVisuals.Count; i++)
+        {
+            var visual = _itemVisuals[i];
+            visual.Host.IsVisible = true;
+            visual.TitleTextBlock.Text = fallbackText;
+            SetNewsBitmap(i, null);
+        }
+
+        StatusTextBlock.Text = L("ifeng.widget.fetch_failed", "新闻获取失败");
+        StatusTextBlock.IsVisible = true;
+        UpdateInteractionState();
+        UpdateAdaptiveLayout();
+    }
+
+    private void UpdateAdaptiveLayout()
+    {
+        var scale = ResolveScale();
+        var softScale = Math.Clamp(scale, 0.80, 1.32);
+        var totalWidth = Bounds.Width > 1 ? Bounds.Width : _currentCellSize * BaseWidthCells;
+        var totalHeight = Bounds.Height > 1 ? Bounds.Height : _currentCellSize * BaseHeightCells;
+
+        RootBorder.CornerRadius = new CornerRadius(Math.Clamp(32 * softScale, 16, 46));
+        CardBorder.CornerRadius = new CornerRadius(Math.Clamp(32 * softScale, 16, 46));
+
+        var horizontalPadding = Math.Clamp(14 * softScale, 8, 20);
+        var verticalPadding = Math.Clamp(14 * softScale, 8, 20);
+        CardBorder.Padding = new Thickness(horizontalPadding, verticalPadding, horizontalPadding, verticalPadding);
+
+        var rowSpacing = Math.Clamp(8 * softScale, 4, 12);
+        ContentGrid.RowSpacing = rowSpacing;
+        HeaderGrid.ColumnSpacing = Math.Clamp(10 * softScale, 6, 16);
+
+        var innerWidth = Math.Max(150, totalWidth - horizontalPadding * 2d);
+        var innerHeight = Math.Max(160, totalHeight - verticalPadding * 2d);
+        var availableRowsHeight = Math.Max(120, innerHeight - rowSpacing * 4d);
+        var headerHeight = Math.Clamp(availableRowsHeight * 0.16, 24, 54);
+        var itemHeight = Math.Max(32, (availableRowsHeight - headerHeight) / 4d);
+
+        if (ContentGrid.RowDefinitions.Count >= 5)
+        {
+            ContentGrid.RowDefinitions[0].Height = new GridLength(headerHeight);
+            for (var i = 1; i <= 4; i++)
+            {
+                ContentGrid.RowDefinitions[i].Height = new GridLength(itemHeight);
+            }
+        }
+
+        BrandTextBlock.FontSize = Math.Clamp(headerHeight * 0.62, 14, 30);
+
+        var refreshSize = Math.Clamp(headerHeight * 0.84, 22, 44);
+        RefreshButton.Width = refreshSize;
+        RefreshButton.Height = refreshSize;
+        RefreshButton.CornerRadius = new CornerRadius(refreshSize / 2d);
+        RefreshGlyphIcon.FontSize = Math.Clamp(refreshSize * 0.44, 10, 20);
+
+        var imageWidth = Math.Clamp(innerWidth * 0.27, 82, 176);
+        var imageHeight = Math.Clamp(imageWidth * 0.56, 46, 98);
+        var columnGap = Math.Clamp(itemHeight * 0.20, 6, 14);
+        var rowPadding = Math.Clamp(itemHeight * 0.08, 1, 5);
+        var textWidth = Math.Max(84, innerWidth - imageWidth - columnGap);
+        var titleFont = Math.Clamp(itemHeight * 0.32, 12, 24);
+
+        foreach (var visual in _itemVisuals)
+        {
+            visual.Host.Padding = new Thickness(0, rowPadding, 0, rowPadding);
+            visual.RowGrid.ColumnSpacing = columnGap;
+            if (visual.RowGrid.ColumnDefinitions.Count > 1)
+            {
+                visual.RowGrid.ColumnDefinitions[1].Width = new GridLength(imageWidth);
+            }
+
+            visual.ImageHost.Width = imageWidth;
+            visual.ImageHost.Height = imageHeight;
+            visual.ImageHost.CornerRadius = new CornerRadius(Math.Clamp(imageHeight * 0.15, 8, 16));
+
+            visual.TitleTextBlock.MaxWidth = textWidth;
+            visual.TitleTextBlock.FontSize = titleFont;
+            visual.TitleTextBlock.LineHeight = titleFont * 1.12;
+            visual.TitleTextBlock.MinHeight = visual.TitleTextBlock.LineHeight * 2;
+            visual.TitleTextBlock.MaxLines = 2;
+        }
+
+        StatusTextBlock.FontSize = Math.Clamp(titleFont, 10, 20);
+    }
+
+    private void UpdateInteractionState()
+    {
+        for (var i = 0; i < _itemVisuals.Count; i++)
+        {
+            var visual = _itemVisuals[i];
+            var enabled = i < _activeItems.Count && !string.IsNullOrWhiteSpace(_activeItems[i].Url);
+            visual.Host.IsHitTestVisible = enabled;
+            visual.Host.Opacity = enabled ? 1.0 : 0.68;
+            visual.Host.Cursor = enabled
+                ? new Cursor(StandardCursorType.Hand)
+                : new Cursor(StandardCursorType.Arrow);
+        }
+    }
+
+    private void UpdateRefreshButtonState()
+    {
+        var enabled = _isAttached && !_isRefreshing;
+        RefreshButton.IsEnabled = enabled;
+        RefreshButton.Opacity = enabled ? 1.0 : 0.65;
+    }
+
+    private void UpdateLanguageCode()
+    {
+        try
+        {
+            var snapshot = _appSettingsService.Load();
+            _languageCode = _localizationService.NormalizeLanguageCode(snapshot.LanguageCode);
+        }
+        catch
+        {
+            _languageCode = "zh-CN";
+        }
+    }
+
+    private void ApplyAutoRefreshSettings()
+    {
+        var enabled = true;
+        var intervalMinutes = 20;
+        var channelType = IfengNewsChannelTypes.Comprehensive;
+
+        try
+        {
+            var snapshot = _componentSettingsService.Load();
+            enabled = snapshot.IfengNewsAutoRefreshEnabled;
+            intervalMinutes = NormalizeAutoRefreshIntervalMinutes(snapshot.IfengNewsAutoRefreshIntervalMinutes);
+            channelType = IfengNewsChannelTypes.Normalize(snapshot.IfengNewsChannelType);
+        }
+        catch
+        {
+            // Keep fallback defaults.
+        }
+
+        _autoRefreshEnabled = enabled;
+        _channelType = channelType;
+        _refreshTimer.Interval = TimeSpan.FromMinutes(intervalMinutes);
+
+        if (!_isAttached)
+        {
+            return;
+        }
+
+        if (_autoRefreshEnabled)
+        {
+            if (!_refreshTimer.IsEnabled)
+            {
+                _refreshTimer.Start();
+            }
+        }
+        else if (_refreshTimer.IsEnabled)
+        {
+            _refreshTimer.Stop();
+        }
+    }
+
+    private static int NormalizeAutoRefreshIntervalMinutes(int minutes)
+    {
+        if (minutes <= 0)
+        {
+            return 20;
+        }
+
+        if (SupportedAutoRefreshIntervalsMinutes.Contains(minutes))
+        {
+            return minutes;
+        }
+
+        return SupportedAutoRefreshIntervalsMinutes
+            .OrderBy(value => Math.Abs(value - minutes))
+            .FirstOrDefault(20);
+    }
+
+    private static async Task<Bitmap?> TryDownloadBitmapAsync(string? imageUrl, CancellationToken cancellationToken)
+    {
+        var normalizedUrl = NormalizeHttpUrl(imageUrl);
+        if (string.IsNullOrWhiteSpace(normalizedUrl))
+        {
+            return null;
+        }
+
+        try
+        {
+            using var request = new HttpRequestMessage(HttpMethod.Get, normalizedUrl);
+            request.Headers.TryAddWithoutValidation("User-Agent", BrowserUserAgent);
+            request.Headers.TryAddWithoutValidation("Accept", "image/avif,image/webp,image/apng,image/*,*/*;q=0.8");
+            using var response = await ImageHttpClient.SendAsync(
+                request,
+                HttpCompletionOption.ResponseHeadersRead,
+                cancellationToken);
+            if (!response.IsSuccessStatusCode)
+            {
+                return null;
+            }
+
+            await using var stream = await response.Content.ReadAsStreamAsync(cancellationToken);
+            var memory = new MemoryStream();
+            await stream.CopyToAsync(memory, cancellationToken);
+            memory.Position = 0;
+            return new Bitmap(memory);
+        }
+        catch (OperationCanceledException)
+        {
+            throw;
+        }
+        catch
+        {
+            return null;
+        }
+    }
+
+    private void TryOpenUrl(string? rawUrl)
+    {
+        var normalizedUrl = NormalizeHttpUrl(rawUrl);
+        if (string.IsNullOrWhiteSpace(normalizedUrl))
+        {
+            return;
+        }
+
+        try
+        {
+            var startInfo = new ProcessStartInfo
+            {
+                FileName = normalizedUrl,
+                UseShellExecute = true
+            };
+            Process.Start(startInfo);
+        }
+        catch
+        {
+            // Ignore malformed URLs or shell launch failures.
+        }
+    }
+
+    private static string? NormalizeHttpUrl(string? rawUrl)
+    {
+        if (string.IsNullOrWhiteSpace(rawUrl))
+        {
+            return null;
+        }
+
+        var candidate = rawUrl.Trim();
+        if (!Uri.TryCreate(candidate, UriKind.Absolute, out var uri))
+        {
+            return null;
+        }
+
+        if (!string.Equals(uri.Scheme, Uri.UriSchemeHttp, StringComparison.OrdinalIgnoreCase) &&
+            !string.Equals(uri.Scheme, Uri.UriSchemeHttps, StringComparison.OrdinalIgnoreCase))
+        {
+            return null;
+        }
+
+        return uri.ToString();
+    }
+
+    private void SetNewsBitmap(int index, Bitmap? bitmap)
+    {
+        if (index < 0 || index >= _newsBitmaps.Length)
+        {
+            bitmap?.Dispose();
+            return;
+        }
+
+        var visual = _itemVisuals[index];
+        var oldBitmap = _newsBitmaps[index];
+        if (ReferenceEquals(visual.ImageControl.Source, oldBitmap))
+        {
+            visual.ImageControl.Source = null;
+        }
+
+        oldBitmap?.Dispose();
+        _newsBitmaps[index] = bitmap;
+        visual.ImageControl.Source = bitmap;
+    }
+
+    private void DisposeNewsBitmaps()
+    {
+        for (var i = 0; i < _newsBitmaps.Length; i++)
+        {
+            SetNewsBitmap(i, null);
+        }
+    }
+
+    private double ResolveScale()
+    {
+        var expectedWidth = _currentCellSize * BaseWidthCells;
+        var expectedHeight = _currentCellSize * BaseHeightCells;
+        if (expectedWidth <= 0 || expectedHeight <= 0)
+        {
+            return 1d;
+        }
+
+        var actualWidth = Bounds.Width > 1 ? Bounds.Width : expectedWidth;
+        var actualHeight = Bounds.Height > 1 ? Bounds.Height : expectedHeight;
+        var scaleX = actualWidth / expectedWidth;
+        var scaleY = actualHeight / expectedHeight;
+        return Math.Clamp(Math.Min(scaleX, scaleY), 0.72, 2.4);
+    }
+
+    private static string NormalizeCompactText(string? text)
+    {
+        if (string.IsNullOrWhiteSpace(text))
+        {
+            return string.Empty;
+        }
+
+        return MultiWhitespaceRegex.Replace(text.Trim(), " ");
+    }
+
+    private string L(string key, string fallback)
+    {
+        return _localizationService.GetString(_languageCode, key, fallback);
+    }
+
+    private void CancelRefreshRequest()
+    {
+        var cts = Interlocked.Exchange(ref _refreshCts, null);
+        if (cts is null)
+        {
+            return;
+        }
+
+        cts.Cancel();
+        cts.Dispose();
+    }
+}

LanMountainDesktop/Views/Components/MultiDayWeatherWidget.axaml

@@ -63,7 +63,7 @@
                                        FontFeatures="tnum"
                                        VerticalAlignment="Center"
                                        Margin="0,-2,0,0"
-                                       TextTrimming="CharacterEllipsis"
+                                       TextTrimming="None"
                                        MaxLines="1" />
 
                             <StackPanel Grid.Column="1"

LanMountainDesktop/Views/Components/MultiDayWeatherWidget.axaml.cs

@@ -11,10 +11,11 @@ using Avalonia.Media;
 using Avalonia.Threading;
 using LanMountainDesktop.Models;
 using LanMountainDesktop.Services;
+using LanMountainDesktop.Theme;
 
 namespace LanMountainDesktop.Views.Components;
 
-public partial class MultiDayWeatherWidget : UserControl, IDesktopComponentWidget, ITimeZoneAwareComponentWidget, IWeatherInfoAwareComponentWidget
+public partial class MultiDayWeatherWidget : UserControl, IDesktopComponentWidget, IDesktopPageVisibilityAwareComponentWidget, ITimeZoneAwareComponentWidget, IWeatherInfoAwareComponentWidget
 {
     private enum WeatherVisualKind
     {
@@ -79,6 +80,7 @@ public partial class MultiDayWeatherWidget : UserControl, IDesktopComponentWidge
         string TemperatureText);
 
     private static readonly IWeatherInfoService DefaultWeatherInfoService = new XiaomiWeatherService();
+    private static readonly IReadOnlyList<int> SupportedAutoRefreshIntervalsMinutes = RefreshIntervalCatalog.SupportedIntervalsMinutes;
 
     private readonly DispatcherTimer _refreshTimer = new()
     {
@@ -87,16 +89,19 @@ public partial class MultiDayWeatherWidget : UserControl, IDesktopComponentWidge
 
     private readonly DispatcherTimer _backgroundAnimationTimer = new()
     {
-        Interval = TimeSpan.FromMilliseconds(48)
+        Interval = FluttermotionToken.WeatherAnimationFrameInterval
     };
 
     private readonly AppSettingsService _settingsService = new();
+    private readonly ComponentSettingsService _componentSettingsService = new();
     private readonly LocalizationService _localizationService = new();
     private readonly Dictionary<WeatherVisualKind, IBrush> _backgroundBrushCache = new();
     private readonly Dictionary<HyperOS3WeatherVisualKind, IBrush> _particleBrushCache = new();
     private readonly List<Border> _particleVisuals = new();
     private readonly List<ParticleState> _particleStates = new();
     private readonly Random _particleRandom = new();
+    private readonly ScaleTransform _backgroundMotionScaleTransform = new(1, 1);
+    private readonly TranslateTransform _backgroundMotionTranslateTransform = new();
 
     private IWeatherInfoService _weatherInfoService = DefaultWeatherInfoService;
     private TimeZoneService? _timeZoneService;
@@ -108,7 +113,9 @@ public partial class MultiDayWeatherWidget : UserControl, IDesktopComponentWidge
     private double _animationPhase;
     private int _activeParticleCount;
     private bool _isAttached;
+    private bool _isOnActivePage = true;
     private bool _isRefreshing;
+    private bool _autoRefreshEnabled = true;
     private readonly TextBlock[] _hourlyTimeBlocks;
     private readonly Image[] _hourlyIconBlocks;
     private readonly TextBlock[] _hourlyTempBlocks;
@@ -116,6 +123,7 @@ public partial class MultiDayWeatherWidget : UserControl, IDesktopComponentWidge
     public MultiDayWeatherWidget()
     {
         InitializeComponent();
+        InitializeMotionTransform();
         _hourlyTimeBlocks =
         [
             HourlyTime0, HourlyTime1, HourlyTime2, HourlyTime3, HourlyTime4
@@ -140,6 +148,7 @@ public partial class MultiDayWeatherWidget : UserControl, IDesktopComponentWidge
         ApplyVisualTheme(WeatherVisualKind.ClearDay);
         ApplyNotConfiguredState();
         ApplyCellSize(_currentCellSize);
+        ApplyAutoRefreshSettings();
     }
 
     private void ConfigureTextOverflowGuards()
@@ -157,13 +166,13 @@ public partial class MultiDayWeatherWidget : UserControl, IDesktopComponentWidge
         RangeTextBlock.MaxLines = 1;
 
         TemperatureTextBlock.TextWrapping = TextWrapping.NoWrap;
-        TemperatureTextBlock.TextTrimming = TextTrimming.CharacterEllipsis;
+        TemperatureTextBlock.TextTrimming = TextTrimming.None;
         TemperatureTextBlock.MaxLines = 1;
 
         foreach (var timeBlock in _hourlyTimeBlocks)
         {
             timeBlock.TextWrapping = TextWrapping.NoWrap;
-            timeBlock.TextTrimming = TextTrimming.CharacterEllipsis;
+            timeBlock.TextTrimming = TextTrimming.None;
             timeBlock.MaxLines = 1;
             timeBlock.TextAlignment = TextAlignment.Center;
         }
@@ -171,7 +180,7 @@ public partial class MultiDayWeatherWidget : UserControl, IDesktopComponentWidge
         foreach (var tempBlock in _hourlyTempBlocks)
         {
             tempBlock.TextWrapping = TextWrapping.NoWrap;
-            tempBlock.TextTrimming = TextTrimming.CharacterEllipsis;
+            tempBlock.TextTrimming = TextTrimming.None;
             tempBlock.MaxLines = 1;
             tempBlock.TextAlignment = TextAlignment.Center;
         }
@@ -198,7 +207,29 @@ public partial class MultiDayWeatherWidget : UserControl, IDesktopComponentWidge
     public void SetWeatherInfoService(IWeatherInfoService weatherInfoService)
     {
         _weatherInfoService = weatherInfoService ?? DefaultWeatherInfoService;
-        if (_isAttached)
+        if (_isAttached && _isOnActivePage)
+        {
+            _ = RefreshWeatherAsync(forceRefresh: false);
+        }
+    }
+
+    public void RefreshFromSettings()
+    {
+        ApplyAutoRefreshSettings();
+        if (_isAttached && _isOnActivePage)
+        {
+            _ = RefreshWeatherAsync(forceRefresh: true);
+        }
+    }
+
+    public void SetDesktopPageContext(bool isOnActivePage, bool isEditMode)
+    {
+        _ = isEditMode;
+        var wasOnActivePage = _isOnActivePage;
+        _isOnActivePage = isOnActivePage;
+        UpdateTimerState();
+
+        if (!wasOnActivePage && _isOnActivePage && _isAttached)
         {
             _ = RefreshWeatherAsync(forceRefresh: false);
         }
@@ -229,16 +260,18 @@ public partial class MultiDayWeatherWidget : UserControl, IDesktopComponentWidge
     private void OnAttachedToVisualTree(object? sender, VisualTreeAttachmentEventArgs e)
     {
         _isAttached = true;
-        _refreshTimer.Start();
-        _backgroundAnimationTimer.Start();
-        _ = RefreshWeatherAsync(forceRefresh: false);
+        ApplyAutoRefreshSettings();
+        UpdateTimerState();
+        if (_isOnActivePage)
+        {
+            _ = RefreshWeatherAsync(forceRefresh: false);
+        }
     }
 
     private void OnDetachedFromVisualTree(object? sender, VisualTreeAttachmentEventArgs e)
     {
         _isAttached = false;
-        _refreshTimer.Stop();
-        _backgroundAnimationTimer.Stop();
+        UpdateTimerState();
         CancelRefreshRequest();
     }
 
@@ -255,7 +288,7 @@ public partial class MultiDayWeatherWidget : UserControl, IDesktopComponentWidge
 
     private void OnBackgroundAnimationTick(object? sender, EventArgs e)
     {
-        if (!_isAttached)
+        if (!_isAttached || !_isOnActivePage)
         {
             return;
         }
@@ -318,7 +351,7 @@ public partial class MultiDayWeatherWidget : UserControl, IDesktopComponentWidge
 
     private async Task RefreshWeatherAsync(bool forceRefresh)
     {
-        if (!_isAttached || _isRefreshing)
+        if (!_isAttached || !_isOnActivePage || _isRefreshing)
         {
             return;
         }
@@ -812,14 +845,14 @@ public partial class MultiDayWeatherWidget : UserControl, IDesktopComponentWidge
                 _hourlyTimeBlocks[i].Text = "--";
                 _hourlyTempBlocks[i].Text = "--°/--°";
                 _hourlyIconBlocks[i].Source = HyperOS3WeatherAssetLoader.LoadImage(
-                    HyperOS3WeatherTheme.ResolveIconAsset(ToThemeKind(_activeVisualKind)));
+                    HyperOS3WeatherTheme.ResolveMiniIconAsset(ToThemeKind(_activeVisualKind)));
                 continue;
             }
 
             var item = items[i];
             _hourlyTimeBlocks[i].Text = item.TimeLabel;
             _hourlyIconBlocks[i].Source = HyperOS3WeatherAssetLoader.LoadImage(
-                HyperOS3WeatherTheme.ResolveIconAsset(item.IconKind));
+                HyperOS3WeatherTheme.ResolveMiniIconAsset(item.IconKind));
             _hourlyTempBlocks[i].Text = item.TemperatureText;
         }
     }
@@ -1015,68 +1048,87 @@ public partial class MultiDayWeatherWidget : UserControl, IDesktopComponentWidge
     private void ApplyAdaptiveTypography()
     {
         var (layoutWidth, layoutHeight) = ResolveLayoutViewport();
-        var scaleX = Math.Clamp(layoutWidth / 608d, 0.58, 1.90);
-        var scaleY = Math.Clamp(layoutHeight / 288d, 0.58, 1.90);
         var innerWidth = Math.Max(120, layoutWidth);
-        var innerHeight = Math.Max(72, layoutHeight);
-        var compactness = Math.Clamp((1.0 - scaleY) / 0.55, 0, 1);
+        var innerHeight = Math.Max(56, layoutHeight);
+        var fitScale = Math.Clamp(Math.Min(innerWidth / 592d, innerHeight / 284d), 0.30, 3.20);
+        var cellScale = Math.Clamp(_currentCellSize / 44d, 0.34, 3.60);
+        var visualScale = Math.Clamp((fitScale * 0.72) + (cellScale * 0.28), 0.30, 3.60);
+        var emphasis = Math.Clamp((visualScale - 0.82) / 1.90, 0, 1);
 
-        ContentGrid.RowSpacing = Math.Clamp((4.2 - (compactness * 0.7)) * scaleY, 2, 8);
-        TopRowGrid.ColumnSpacing = Math.Clamp(8 * scaleX, 6, 13);
-        BottomInfoStack.Margin = new Thickness(0, 0, 0, Math.Clamp((1.0 - (compactness * 0.4)) * scaleY, 0, 2));
+        ContentGrid.RowSpacing = Math.Clamp(8 * fitScale, 1, 20);
+        TopRowGrid.ColumnSpacing = Math.Clamp(11 * fitScale, 3, 30);
+        BottomInfoStack.Margin = new Thickness(0, 0, 0, Math.Clamp(1.2 * fitScale, 0, 7));
 
-        var separatorHeight = Math.Clamp(6 * scaleY, 2, 10);
-        var contentHeight = Math.Max(60, innerHeight - ContentGrid.RowSpacing - separatorHeight);
-        var topZoneRatio = Math.Clamp(0.38 + (compactness * 0.09), 0.36, 0.50);
-        var topZoneHeight = Math.Clamp(contentHeight * topZoneRatio, 60, 170);
-        var bottomZoneHeight = Math.Max(42, contentHeight - topZoneHeight);
-        var topScaleH = Math.Clamp(topZoneHeight / 102d, 0.62, 2.0);
-        var topScaleW = Math.Clamp(innerWidth / 620d, 0.62, 2.0);
-        var topScale = Math.Clamp((topScaleH * 0.68) + (topScaleW * 0.32), 0.62, 2.0);
-        var bottomScaleH = Math.Clamp(bottomZoneHeight / 122d, 0.56, 2.0);
-        var bottomScale = Math.Clamp((bottomScaleH * 0.74) + (scaleX * 0.26), 0.56, 1.95);
-        var bodyHeight = bottomZoneHeight;
+        var separatorHeight = Math.Clamp(2.0 * fitScale, 1, 8);
+        var contentHeight = Math.Max(36, innerHeight - ContentGrid.RowSpacing - separatorHeight);
+        var topZoneHeight = Math.Clamp(contentHeight * 0.47, 24, Math.Max(24, contentHeight - 12));
+        var bottomZoneHeight = Math.Max(10, contentHeight - topZoneHeight);
+        if (ContentGrid.RowDefinitions.Count >= 3)
+        {
+            ContentGrid.RowDefinitions[0].Height = new GridLength(topZoneHeight, GridUnitType.Pixel);
+            ContentGrid.RowDefinitions[1].Height = new GridLength(separatorHeight, GridUnitType.Pixel);
+            ContentGrid.RowDefinitions[2].Height = new GridLength(1, GridUnitType.Star);
+        }
 
-        TemperatureTextBlock.FontSize = Math.Clamp(88 * topScale, 56, 132);
-        TemperatureTextBlock.FontWeight = ToVariableWeight(315);
-        TemperatureTextBlock.Margin = new Thickness(0, Math.Clamp(-1.2 * topScale, -4, 0), 0, 0);
-        TemperatureTextBlock.MaxWidth = Math.Clamp(innerWidth * 0.24, 88, 196);
+        var topScale = Math.Clamp(((topZoneHeight / 116d) * 0.42) + (visualScale * 0.86), 0.24, 3.90);
+        var bottomScale = Math.Clamp(((bottomZoneHeight / 156d) * 0.44) + (visualScale * 0.72), 0.24, 3.80);
+        var iconGrowth = Math.Clamp((visualScale - 0.88) / 1.70, 0, 1);
+        var iconScaleBoost = ResolveHeroIconScaleBoost(_activeVisualKind);
+        var iconSize = Math.Clamp(Lerp(88, 116, iconGrowth) * topScale * iconScaleBoost, 14, 360);
+        iconSize = Math.Min(iconSize, Math.Max(14, innerWidth * Lerp(0.22, 0.32, iconGrowth)));
+        var temperatureSample = string.IsNullOrWhiteSpace(TemperatureTextBlock.Text)
+            ? "00°"
+            : TemperatureTextBlock.Text.Trim();
+        var temperatureGlyphCount = Math.Clamp(temperatureSample.Length, 3, 6);
+        var temperatureMaxWidth = Math.Max(28, innerWidth - iconSize - TopRowGrid.ColumnSpacing - 4);
+        var rawTemperatureSize = Math.Clamp(Lerp(64, 92, iconGrowth) * topScale, 12, 320);
+        var fitTemperatureSize = temperatureMaxWidth / (temperatureGlyphCount * 0.62);
+        TemperatureTextBlock.FontSize = Math.Clamp(Math.Min(rawTemperatureSize, fitTemperatureSize), 9, 320);
+        TemperatureTextBlock.FontWeight = ToVariableWeight(Lerp(300, 360, emphasis));
+        TemperatureTextBlock.Margin = new Thickness(0, Math.Clamp(-2.0 * topScale, -10, 0), 0, 0);
+        TemperatureTextBlock.MaxWidth = Math.Clamp(temperatureMaxWidth, 28, Math.Max(280, innerWidth * 0.68));
 
         CityInfoBadge.Padding = new Thickness(0);
         CityInfoBadge.CornerRadius = new CornerRadius(0);
-        LocationIcon.FontSize = Math.Clamp(12 * topScale, 9, 17);
-        CityTextBlock.FontSize = Math.Clamp(18 * topScale, 11, 26);
-        CityTextBlock.FontWeight = ToVariableWeight(540);
-        CityTextBlock.MaxWidth = Math.Clamp(innerWidth * 0.36, 112, 300);
+        LocationIcon.FontSize = Math.Clamp(13 * topScale, 6, 52);
+        CityTextBlock.FontSize = Math.Clamp(18.5 * topScale, 7, 88);
+        CityTextBlock.FontWeight = ToVariableWeight(Lerp(530, 620, emphasis));
+        CityTextBlock.MaxWidth = Math.Clamp(innerWidth * 0.37, 34, 460);
 
         ConditionInfoBadge.Padding = new Thickness(0);
         ConditionInfoBadge.CornerRadius = new CornerRadius(0);
-        ConditionIconStack.Spacing = Math.Clamp(7 * topScale, 4, 13);
-        ConditionTextBlock.FontSize = Math.Clamp(19 * topScale, 12, 27);
-        RangeTextBlock.FontSize = Math.Clamp(20 * topScale, 12, 30);
-        ConditionTextBlock.FontWeight = ToVariableWeight(600);
-        RangeTextBlock.FontWeight = ToVariableWeight(620);
-        ConditionTextBlock.MaxWidth = Math.Clamp(innerWidth * 0.24, 58, 220);
-        RangeTextBlock.MaxWidth = Math.Clamp(innerWidth * 0.30, 88, 270);
-        BottomInfoStack.Spacing = Math.Clamp(2.2 * topScale, 1, 6);
+        ConditionIconStack.Spacing = Math.Clamp(8.5 * topScale, 1, 24);
+        ConditionTextBlock.FontSize = Math.Clamp(19 * topScale, 7, 78);
+        RangeTextBlock.FontSize = Math.Clamp(21 * topScale, 7, 84);
+        ConditionTextBlock.FontWeight = ToVariableWeight(Lerp(580, 660, emphasis));
+        RangeTextBlock.FontWeight = ToVariableWeight(Lerp(600, 680, emphasis));
+        ConditionTextBlock.MaxWidth = Math.Clamp(innerWidth * 0.24, 26, 320);
+        RangeTextBlock.MaxWidth = Math.Clamp(innerWidth * 0.31, 32, 360);
+        BottomInfoStack.Spacing = Math.Clamp(2.0 * topScale, 0.4, 14);
 
-        var iconSize = Math.Clamp(68 * topScale, 42, 98);
         WeatherIconImage.Width = iconSize;
         WeatherIconImage.Height = iconSize;
+        WeatherIconImage.Margin = new Thickness(0, Math.Clamp(-2.2 * topScale, -10, 0), 0, 0);
 
-        HourlyPanelBorder.Padding = new Thickness(0, Math.Clamp(1 * scaleY, 0, 2), 0, 0);
-        HourlyPanelBorder.Margin = new Thickness(0, Math.Clamp(1.2 * scaleY, 0, 3), 0, 0);
+        HourlyPanelBorder.Padding = new Thickness(0);
+        HourlyPanelBorder.Margin = new Thickness(0, Math.Clamp(6 * fitScale, 1, 24), 0, 0);
         HourlyPanelBorder.CornerRadius = new CornerRadius(0);
-        HourlyGrid.ColumnSpacing = Math.Clamp(7 * scaleX, 4, 11);
+        HourlyGrid.ColumnSpacing = Math.Clamp(5 * fitScale, 0.5, 28);
         var hourlyColumnCount = Math.Max(1, _hourlyTimeBlocks.Length);
         var hourlyInnerWidth = Math.Max(
-            96,
-            innerWidth - HourlyPanelBorder.Padding.Left - HourlyPanelBorder.Padding.Right - (HourlyGrid.ColumnSpacing * (hourlyColumnCount - 1)));
-        var hourlyCellWidth = Math.Max(34, hourlyInnerWidth / hourlyColumnCount);
-        var stackSpacing = Math.Clamp((1.6 + (bottomScale * 0.8)) * scaleY, 1, 4);
-        var forecastRangeSize = Math.Clamp(Math.Max(13, bodyHeight * 0.22) * (0.76 + (bottomScale * 0.24)), 13, 31);
-        var forecastLabelSize = Math.Clamp(Math.Max(10, bodyHeight * 0.17) * (0.78 + (bottomScale * 0.22)), 10, 23);
-        var forecastIconSize = Math.Clamp(Math.Max(14, bodyHeight * 0.25) * (0.78 + (bottomScale * 0.22)), 14, 35);
+            32,
+            innerWidth - (HourlyGrid.ColumnSpacing * (hourlyColumnCount - 1)));
+        var hourlyCellWidth = Math.Max(12, hourlyInnerWidth / hourlyColumnCount);
+        var hourlyCellScale = Math.Clamp(
+            Math.Min((bottomScale * 0.66) + (visualScale * 0.44), hourlyCellWidth / 78d),
+            0.22,
+            3.60);
+        var stackSpacing = Math.Clamp(2 * hourlyCellScale, 0.2, 10);
+        var forecastRangeSize = Math.Clamp(18.0 * hourlyCellScale, 6, 62);
+        var forecastLabelSize = Math.Clamp(13.8 * hourlyCellScale, 6, 48);
+        var forecastIconSize = Math.Clamp(40 * hourlyCellScale, 9, 124);
+        forecastIconSize = Math.Min(forecastIconSize, Math.Max(10, hourlyCellWidth * 0.88));
+        forecastIconSize = Math.Min(forecastIconSize, Math.Max(10, bottomZoneHeight * 0.50));
 
         for (var i = 0; i < _hourlyTimeBlocks.Length; i++)
         {
@@ -1084,10 +1136,10 @@ public partial class MultiDayWeatherWidget : UserControl, IDesktopComponentWidge
             _hourlyTempBlocks[i].FontSize = forecastRangeSize;
             _hourlyIconBlocks[i].Width = forecastIconSize;
             _hourlyIconBlocks[i].Height = forecastIconSize;
-            _hourlyTimeBlocks[i].MaxWidth = Math.Clamp(hourlyCellWidth, 34, 112);
-            _hourlyTempBlocks[i].MaxWidth = Math.Clamp(hourlyCellWidth, 34, 112);
-            _hourlyTimeBlocks[i].FontWeight = ToVariableWeight(500);
-            _hourlyTempBlocks[i].FontWeight = ToVariableWeight(590);
+            _hourlyTimeBlocks[i].MaxWidth = Math.Clamp(hourlyCellWidth, 12, 260);
+            _hourlyTempBlocks[i].MaxWidth = Math.Clamp(hourlyCellWidth, 12, 260);
+            _hourlyTimeBlocks[i].FontWeight = ToVariableWeight(Lerp(500, 600, emphasis));
+            _hourlyTempBlocks[i].FontWeight = ToVariableWeight(Lerp(580, 690, emphasis));
             _hourlyTimeBlocks[i].TextAlignment = TextAlignment.Center;
             _hourlyTempBlocks[i].TextAlignment = TextAlignment.Center;
             if (_hourlyTimeBlocks[i].Parent is StackPanel hourlyStack)
@@ -1102,10 +1154,20 @@ public partial class MultiDayWeatherWidget : UserControl, IDesktopComponentWidge
         return from + ((to - from) * t);
     }
 
+    private static double ResolveHeroIconScaleBoost(WeatherVisualKind kind)
+    {
+        return kind switch
+        {
+            WeatherVisualKind.RainLight or WeatherVisualKind.RainHeavy or WeatherVisualKind.Storm or WeatherVisualKind.Snow => 1.16,
+            WeatherVisualKind.ClearNight or WeatherVisualKind.CloudyNight => 1.08,
+            _ => 1.0
+        };
+    }
+
     private void SetMainWeatherIcon(WeatherVisualKind kind)
     {
         WeatherIconImage.Source = HyperOS3WeatherAssetLoader.LoadImage(
-            HyperOS3WeatherTheme.ResolveIconAsset(ToThemeKind(kind)));
+            HyperOS3WeatherTheme.ResolveHeroIconAsset(ToThemeKind(kind)));
     }
 
     private void SetLoadingSkeleton(bool isLoading)
@@ -1162,15 +1224,89 @@ public partial class MultiDayWeatherWidget : UserControl, IDesktopComponentWidge
 
     private void SetMotionTransform(double translateX, double translateY, double scale)
     {
-        var group = new TransformGroup
+        _backgroundMotionScaleTransform.ScaleX = scale;
+        _backgroundMotionScaleTransform.ScaleY = scale;
+        _backgroundMotionTranslateTransform.X = translateX;
+        _backgroundMotionTranslateTransform.Y = translateY;
+    }
+
+    private void InitializeMotionTransform()
+    {
+        BackgroundMotionLayer.RenderTransform = new TransformGroup
         {
             Children = new Transforms
             {
-                new ScaleTransform(scale, scale),
-                new TranslateTransform(translateX, translateY)
+                _backgroundMotionScaleTransform,
+                _backgroundMotionTranslateTransform
             }
         };
-        BackgroundMotionLayer.RenderTransform = group;
+    }
+
+    private void UpdateTimerState()
+    {
+        if (_isAttached && _isOnActivePage)
+        {
+            if (_autoRefreshEnabled && !_refreshTimer.IsEnabled)
+            {
+                _refreshTimer.Start();
+            }
+            else if (!_autoRefreshEnabled && _refreshTimer.IsEnabled)
+            {
+                _refreshTimer.Stop();
+            }
+
+            if (!_backgroundAnimationTimer.IsEnabled)
+            {
+                _backgroundAnimationTimer.Start();
+            }
+
+            return;
+        }
+
+        _refreshTimer.Stop();
+        _backgroundAnimationTimer.Stop();
+    }
+
+    private void ApplyAutoRefreshSettings()
+    {
+        var enabled = true;
+        var intervalMinutes = 12;
+
+        try
+        {
+            var snapshot = _componentSettingsService.Load();
+            enabled = snapshot.WeatherAutoRefreshEnabled;
+            intervalMinutes = NormalizeAutoRefreshIntervalMinutes(snapshot.WeatherAutoRefreshIntervalMinutes);
+        }
+        catch
+        {
+            // Keep fallback defaults.
+        }
+
+        _autoRefreshEnabled = enabled;
+        _refreshTimer.Interval = TimeSpan.FromMinutes(intervalMinutes);
+
+        if (_isAttached)
+        {
+            UpdateTimerState();
+        }
+    }
+
+    private static int NormalizeAutoRefreshIntervalMinutes(int minutes)
+    {
+        if (minutes <= 0)
+        {
+            return 12;
+        }
+
+        if (SupportedAutoRefreshIntervalsMinutes.Contains(minutes))
+        {
+            return minutes;
+        }
+
+        return SupportedAutoRefreshIntervalsMinutes
+            .OrderBy(value => Math.Abs(value - minutes))
+            .FirstOrDefault(12);
     }
 
     private void InitializeParticleVisuals()

LanMountainDesktop/Views/Components/MusicControlWidget.axaml

@@ -86,7 +86,7 @@
                            Opacity="0.62"
                            Stretch="UniformToFill">
                         <Image.Effect>
-                            <BlurEffect Radius="42" />
+                            <BlurEffect Radius="{DynamicResource FluttermotionToken.BackdropBlurRadiusStrong}" />
                         </Image.Effect>
                     </Image>
                 </Border>

LanMountainDesktop/Views/Components/MusicControlWidget.axaml.cs

@@ -17,7 +17,7 @@ using LanMountainDesktop.Theme;
 
 namespace LanMountainDesktop.Views.Components;
 
-public partial class MusicControlWidget : UserControl, IDesktopComponentWidget
+public partial class MusicControlWidget : UserControl, IDesktopComponentWidget, IDesktopPageVisibilityAwareComponentWidget
 {
     private const Symbol PlaySymbol = Symbol.Play;
     private const Symbol PauseSymbol = Symbol.Pause;
@@ -38,6 +38,7 @@ public partial class MusicControlWidget : UserControl, IDesktopComponentWidget
     private string _languageCode = "zh-CN";
     private double _currentCellSize = 48;
     private bool _isAttached;
+    private bool _isOnActivePage = true;
     private bool _isRefreshing;
     private bool _isExecutingCommand;
     private double _progressRatio;
@@ -126,17 +127,33 @@ public partial class MusicControlWidget : UserControl, IDesktopComponentWidget
         UpdateProgressVisual(_progressRatio, _isProgressIndeterminate);
     }
 
+    public void SetDesktopPageContext(bool isOnActivePage, bool isEditMode)
+    {
+        _ = isEditMode;
+        var wasOnActivePage = _isOnActivePage;
+        _isOnActivePage = isOnActivePage;
+        UpdateRefreshTimerState();
+
+        if (!wasOnActivePage && _isOnActivePage && _isAttached)
+        {
+            _ = RefreshStateAsync();
+        }
+    }
+
     private void OnAttachedToVisualTree(object? sender, VisualTreeAttachmentEventArgs e)
     {
         _isAttached = true;
-        _refreshTimer.Start();
-        _ = RefreshStateAsync();
+        UpdateRefreshTimerState();
+        if (_isOnActivePage)
+        {
+            _ = RefreshStateAsync();
+        }
     }
 
     private void OnDetachedFromVisualTree(object? sender, VisualTreeAttachmentEventArgs e)
     {
         _isAttached = false;
-        _refreshTimer.Stop();
+        UpdateRefreshTimerState();
         CancelRefreshRequest();
         DisposeCoverBitmap();
     }
@@ -211,7 +228,7 @@ public partial class MusicControlWidget : UserControl, IDesktopComponentWidget
 
     private async Task RefreshStateAsync()
     {
-        if (!_isAttached || _isRefreshing)
+        if (!_isAttached || !_isOnActivePage || _isRefreshing)
         {
             return;
         }
@@ -257,6 +274,21 @@ public partial class MusicControlWidget : UserControl, IDesktopComponentWidget
         }
     }
 
+    private void UpdateRefreshTimerState()
+    {
+        if (_isAttached && _isOnActivePage)
+        {
+            if (!_refreshTimer.IsEnabled)
+            {
+                _refreshTimer.Start();
+            }
+
+            return;
+        }
+
+        _refreshTimer.Stop();
+    }
+
     private void ApplyState(MusicPlaybackState state)
     {
         var hasMediaSession = state.IsSupported && state.HasSession;