Add OOBE redesign, theme & data location support

Introduce a redesigned OOBE flow and data-location/theme support across the launcher. Adds a new ThemeService for applying light/dark and accent colors; integrates FluentIcons.Avalonia package for icons. Overhauls OobeWindow (UX animations, typing effect, multi-step theme and data-location pages, Monet options, and final welcome step) and its code-behind to handle step navigation, accent selection, and data-location resolution. Adds DataLocation UI and handlers (DataLocationPromptWindow changes, DataLocation resolver usage) and wires a DevDebug UI for toggling/opening the data-location page. UpdateEngineService now resolves the launcher root via DataLocationResolver. Misc: update various view models, localization entries and remove TrimmerRoots.xml.

LanMountainDesktop.Launcher/LanMountainDesktop.Launcher.csproj

@@ -25,6 +25,7 @@
     <PackageReference Include="Avalonia" Version="11.3.12" />
     <PackageReference Include="Avalonia.Desktop" Version="11.3.12" />
     <PackageReference Include="FluentAvaloniaUI" Version="2.5.0" />
+    <PackageReference Include="FluentIcons.Avalonia" Version="1.1.250403001" />
     <PackageReference Include="Avalonia.Fonts.Inter" Version="11.3.12" />
     <PackageReference Include="Tmds.DBus.Protocol" Version="0.92.0" />
   </ItemGroup>

LanMountainDesktop.Launcher/Services/ThemeService.cs

@@ -0,0 +1,68 @@
+using Avalonia;
+using Avalonia.Styling;
+using FluentAvalonia.Styling;
+
+namespace LanMountainDesktop.Launcher.Services;
+
+/// <summary>
+/// 主题服务，管理启动器的主题设置
+/// </summary>
+public static class ThemeService
+{
+    private static ThemeVariant _currentTheme = ThemeVariant.Light;
+    private static string _accentColor = "#0078D4";
+
+    /// <summary>
+    /// 获取当前主题
+    /// </summary>
+    public static ThemeVariant CurrentTheme => _currentTheme;
+
+    /// <summary>
+    /// 获取当前主题色
+    /// </summary>
+    public static string AccentColor => _accentColor;
+
+    /// <summary>
+    /// 应用主题设置
+    /// </summary>
+    public static void ApplyTheme(ThemeMode mode, string accentColor)
+    {
+        _currentTheme = mode switch
+        {
+            ThemeMode.Dark => ThemeVariant.Dark,
+            _ => ThemeVariant.Light
+        };
+        _accentColor = accentColor;
+
+        // 应用到当前应用程序
+        if (Application.Current is { } app)
+        {
+            app.RequestedThemeVariant = _currentTheme;
+        }
+    }
+
+    /// <summary>
+    /// 应用浅色主题
+    /// </summary>
+    public static void ApplyLightTheme(string accentColor)
+    {
+        ApplyTheme(ThemeMode.Light, accentColor);
+    }
+
+    /// <summary>
+    /// 应用深色主题
+    /// </summary>
+    public static void ApplyDarkTheme(string accentColor)
+    {
+        ApplyTheme(ThemeMode.Dark, accentColor);
+    }
+}
+
+/// <summary>
+/// 主题模式
+/// </summary>
+public enum ThemeMode
+{
+    Light,
+    Dark
+}

LanMountainDesktop.Launcher/Services/UpdateEngineService.cs

@@ -22,6 +22,7 @@ internal sealed class UpdateEngineService
 
     private readonly DeploymentLocator _deploymentLocator;
     private readonly string _appRoot;
+    private readonly string _dataRoot;
     private readonly string _launcherRoot;
     private readonly string _incomingRoot;
     private readonly string _snapshotsRoot;
@@ -30,7 +31,8 @@ internal sealed class UpdateEngineService
     {
         _deploymentLocator = deploymentLocator;
         _appRoot = deploymentLocator.GetAppRoot();
-        _launcherRoot = Path.Combine(_appRoot, LauncherDirectoryName);
+        _dataRoot = new DataLocationResolver(_appRoot).ResolveDataRoot();
+        _launcherRoot = Path.Combine(_dataRoot, LauncherDirectoryName);
         _incomingRoot = Path.Combine(_launcherRoot, UpdateDirectoryName, IncomingDirectoryName);
         _snapshotsRoot = Path.Combine(_launcherRoot, SnapshotsDirectoryName);
     }

LanMountainDesktop.Launcher/ViewModels/DevDebugWindowViewModel.cs

@@ -13,6 +13,7 @@ public sealed class DevDebugWindowViewModel : INotifyPropertyChanged
     private bool _isErrorEnabled = true;
     private bool _isUpdateEnabled = true;
     private bool _isOobeEnabled = true;
+    private bool _isDataLocationEnabled = true;
     private string _statusMessage = "就绪";
 
     public event PropertyChangedEventHandler? PropertyChanged;
@@ -87,6 +88,23 @@ public sealed class DevDebugWindowViewModel : INotifyPropertyChanged
         }
     }
 
+    /// <summary>
+    /// 数据位置选择页面是否启用实际功能
+    /// </summary>
+    public bool IsDataLocationEnabled
+    {
+        get => _isDataLocationEnabled;
+        set
+        {
+            if (_isDataLocationEnabled != value)
+            {
+                _isDataLocationEnabled = value;
+                OnPropertyChanged();
+                UpdateStatus($"数据位置选择: {(value ? "功能模式" : "仅查看")}");
+            }
+        }
+    }
+
     #endregion
 
     #region 状态信息
@@ -131,6 +149,11 @@ public sealed class DevDebugWindowViewModel : INotifyPropertyChanged
     /// </summary>
     public ICommand OpenOobeCommand { get; }
 
+    /// <summary>
+    /// 打开数据位置选择页面命令
+    /// </summary>
+    public ICommand OpenDataLocationCommand { get; }
+
     /// <summary>
     /// 全部切换到查看模式命令
     /// </summary>
@@ -170,6 +193,11 @@ public sealed class DevDebugWindowViewModel : INotifyPropertyChanged
     /// </summary>
     public event EventHandler<OobeOpenEventArgs>? OpenOobeRequested;
 
+    /// <summary>
+    /// 请求打开数据位置选择页面
+    /// </summary>
+    public event EventHandler<DataLocationOpenEventArgs>? OpenDataLocationRequested;
+
     /// <summary>
     /// 请求关闭窗口
     /// </summary>
@@ -199,12 +227,18 @@ public sealed class DevDebugWindowViewModel : INotifyPropertyChanged
             OpenOobeRequested?.Invoke(this, new OobeOpenEventArgs(IsOobeEnabled));
         });
 
+        OpenDataLocationCommand = new RelayCommand(() =>
+        {
+            OpenDataLocationRequested?.Invoke(this, new DataLocationOpenEventArgs(IsDataLocationEnabled));
+        });
+
         SetAllViewOnlyCommand = new RelayCommand(() =>
         {
             IsSplashEnabled = false;
             IsErrorEnabled = false;
             IsUpdateEnabled = false;
             IsOobeEnabled = false;
+            IsDataLocationEnabled = false;
             UpdateStatus("全部页面已切换到查看模式");
         });
 
@@ -214,6 +248,7 @@ public sealed class DevDebugWindowViewModel : INotifyPropertyChanged
             IsErrorEnabled = true;
             IsUpdateEnabled = true;
             IsOobeEnabled = true;
+            IsDataLocationEnabled = true;
             UpdateStatus("全部页面已切换到功能模式");
         });
 
@@ -260,4 +295,10 @@ public class OobeOpenEventArgs : EventArgs
     public OobeOpenEventArgs(bool isFunctional) => IsFunctional = isFunctional;
 }
 
+public class DataLocationOpenEventArgs : EventArgs
+{
+    public bool IsFunctional { get; }
+    public DataLocationOpenEventArgs(bool isFunctional) => IsFunctional = isFunctional;
+}
+
 #endregion

LanMountainDesktop.Launcher/Views/DataLocationPromptWindow.axaml.cs

@@ -221,6 +221,7 @@ internal partial class DataLocationPromptWindow : Window
             {
                 Duration = TimeSpan.FromMilliseconds(500),
                 Easing = new CubicEaseOut(),
+                FillMode = FillMode.Forward,
                 Children =
                 {
                     new KeyFrame
@@ -240,6 +241,7 @@ internal partial class DataLocationPromptWindow : Window
             {
                 Duration = TimeSpan.FromMilliseconds(500),
                 Easing = new CubicEaseOut(),
+                FillMode = FillMode.Forward,
                 Children =
                 {
                     new KeyFrame
@@ -280,6 +282,7 @@ internal partial class DataLocationPromptWindow : Window
             {
                 Duration = TimeSpan.FromMilliseconds(200),
                 Easing = new CubicEaseIn(),
+                FillMode = FillMode.Forward,
                 Children =
                 {
                     new KeyFrame

LanMountainDesktop.Launcher/Views/DevDebugWindow.axaml

@@ -141,6 +141,32 @@
             </Grid>
           </Border>
 
+          <!-- 数据位置选择页面 -->
+          <Border Background="{DynamicResource SystemControlBackgroundAltMediumBrush}"
+                  CornerRadius="8"
+                  Padding="15">
+            <Grid ColumnDefinitions="*,Auto">
+              <StackPanel Grid.Column="0">
+                <TextBlock Text="📁 数据位置选择 (DataLocationPromptWindow)"
+                           FontWeight="SemiBold"
+                           FontSize="14" />
+                <TextBlock Text="选择数据保存位置"
+                           FontSize="11"
+                           Opacity="0.6"
+                           Margin="0,3,0,0" />
+              </StackPanel>
+              <StackPanel Grid.Column="1" Spacing="8">
+                <ToggleSwitch Content="启用功能"
+                              IsChecked="{Binding IsDataLocationEnabled}"
+                              OnContent="功能"
+                              OffContent="查看" />
+                <Button Content="打开"
+                        Command="{Binding OpenDataLocationCommand}"
+                        HorizontalAlignment="Right" />
+              </StackPanel>
+            </Grid>
+          </Border>
+
         </StackPanel>
       </ScrollViewer>
 

LanMountainDesktop.Launcher/Views/DevDebugWindow.axaml.cs

@@ -25,6 +25,7 @@ public partial class DevDebugWindow : Window
         _viewModel.OpenErrorRequested += OnOpenErrorRequested;
         _viewModel.OpenUpdateRequested += OnOpenUpdateRequested;
         _viewModel.OpenOobeRequested += OnOpenOobeRequested;
+        _viewModel.OpenDataLocationRequested += OnOpenDataLocationRequested;
         _viewModel.CloseRequested += OnCloseRequested;
     }
 
@@ -135,6 +136,17 @@ public partial class DevDebugWindow : Window
         }
     }
 
+    /// <summary>
+    /// 打开数据位置选择页面
+    /// </summary>
+    private void OnOpenDataLocationRequested(object? sender, DataLocationOpenEventArgs e)
+    {
+        var appRoot = AppDomain.CurrentDomain.BaseDirectory;
+        var resolver = new DataLocationResolver(appRoot);
+        var window = new DataLocationPromptWindow(resolver);
+        window.Show();
+    }
+
     /// <summary>
     /// 关闭窗口
     /// </summary>

LanMountainDesktop.Launcher/Views/OobeWindow.axaml

@@ -4,13 +4,14 @@
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
         xmlns:views="clr-namespace:LanMountainDesktop.Launcher.Views"
         xmlns:ui="using:FluentAvalonia.UI.Controls"
+        xmlns:fi="using:FluentIcons.Avalonia"
         mc:Ignorable="d"
-        d:DesignWidth="600"
+        d:DesignWidth="700"
         d:DesignHeight="500"
         x:Class="LanMountainDesktop.Launcher.Views.OobeWindow"
         x:DataType="views:OobeWindow"
         Title="欢迎使用阑山桌面"
-        Width="600"
+        Width="700"
         Height="500"
         CanResize="False"
         WindowStartupLocation="CenterScreen"
@@ -21,59 +22,600 @@
     <views:OobeWindow />
   </Design.DataContext>
 
-  <Grid x:Name="ContentGrid"
-        Opacity="0">
-    <Grid.RenderTransform>
-      <TranslateTransform Y="24" />
-    </Grid.RenderTransform>
-    <!-- 主内容区域 -->
-    <Grid Margin="48" RowDefinitions="*,Auto">
-      <!-- 中央内容区域 -->
-      <StackPanel Grid.Row="0" 
-                  VerticalAlignment="Center" 
-                  HorizontalAlignment="Center"
-                  Spacing="24">
-        
-        <!-- 顶部：完成状态勾号图标 -->
-        <Border Width="80"
-                Height="80"
-                Background="{DynamicResource SystemFillColorSuccessBackgroundBrush}"
-                CornerRadius="40"
-                HorizontalAlignment="Center">
-          <ui:SymbolIcon Symbol="Accept"
-                         FontSize="40"
-                         Foreground="{DynamicResource SystemFillColorSuccessBrush}"
-                         HorizontalAlignment="Center"
-                         VerticalAlignment="Center"/>
-        </Border>
-        
-        <!-- 中央：欢迎文字 -->
-        <StackPanel Spacing="8" HorizontalAlignment="Center">
-          <TextBlock Text="欢迎使用阑山桌面"
+  <Grid x:Name="ContentGrid">
+
+    <!-- 步骤 1: 打字机动画开场 -->
+    <Grid x:Name="TypingStep" Margin="60,80,60,60">
+      <!-- 主标题区域（左上角） -->
+      <StackPanel HorizontalAlignment="Left" VerticalAlignment="Top" Spacing="16">
+        <!-- 打字机文本区域 -->
+        <StackPanel Orientation="Horizontal">
+          <TextBlock x:Name="TypingTextBlock"
                      FontSize="28"
                      FontWeight="SemiBold"
                      Foreground="{DynamicResource TextFillColorPrimaryBrush}"
+                     FontFamily="Consolas, Monaco, 'Courier New', monospace" />
+          <Border x:Name="CursorBorder"
+                  Width="3"
+                  Height="28"
+                  Background="{DynamicResource TextFillColorPrimaryBrush}"
+                  VerticalAlignment="Bottom"
+                  Margin="4,0,0,4">
+            <Border.Styles>
+              <Style Selector="Border">
+                <Style.Animations>
+                  <Animation Duration="0:0:0.8" IterationCount="INFINITE">
+                    <KeyFrame Cue="0%">
+                      <Setter Property="Opacity" Value="1" />
+                    </KeyFrame>
+                    <KeyFrame Cue="50%">
+                      <Setter Property="Opacity" Value="1" />
+                    </KeyFrame>
+                    <KeyFrame Cue="51%">
+                      <Setter Property="Opacity" Value="0" />
+                    </KeyFrame>
+                    <KeyFrame Cue="100%">
+                      <Setter Property="Opacity" Value="0" />
+                    </KeyFrame>
+                  </Animation>
+                </Style.Animations>
+              </Style>
+            </Border.Styles>
+          </Border>
+        </StackPanel>
+
+        <!-- 副标题区域（流光渐变动画 + 打字机效果） -->
+        <StackPanel x:Name="SubtitlePanel" Opacity="0" IsVisible="False" Spacing="4">
+          <StackPanel Orientation="Horizontal">
+            <TextBlock x:Name="NextGenTextBlock"
+                       FontSize="48"
+                       FontWeight="Bold"
+                       FontFamily="Consolas, Monaco, 'Courier New', monospace">
+              <TextBlock.Foreground>
+                 <LinearGradientBrush StartPoint="0%,0%" EndPoint="100%,100%">
+                   <GradientStop Offset="0.0" Color="#0078D4" />
+                   <GradientStop Offset="0.33" Color="#7B68EE" />
+                   <GradientStop Offset="0.66" Color="#FF8C00" />
+                   <GradientStop Offset="1.0" Color="#107C10" />
+                 </LinearGradientBrush>
+               </TextBlock.Foreground>
+            </TextBlock>            <Border x:Name="SubtitleCursorBorder"
+                    Width="4"
+                    Height="48"
+                    Background="{DynamicResource TextFillColorPrimaryBrush}"
+                    VerticalAlignment="Bottom"
+                    Margin="4,0,0,4"
+                    IsVisible="False">
+              <Border.Styles>
+                <Style Selector="Border">
+                  <Style.Animations>
+                    <Animation Duration="0:0:0.8" IterationCount="INFINITE">
+                      <KeyFrame Cue="0%">
+                        <Setter Property="Opacity" Value="1" />
+                      </KeyFrame>
+                      <KeyFrame Cue="50%">
+                        <Setter Property="Opacity" Value="1" />
+                      </KeyFrame>
+                      <KeyFrame Cue="51%">
+                        <Setter Property="Opacity" Value="0" />
+                      </KeyFrame>
+                      <KeyFrame Cue="100%">
+                        <Setter Property="Opacity" Value="0" />
+                      </KeyFrame>
+                    </Animation>
+                  </Style.Animations>
+                </Style>
+              </Border.Styles>
+            </Border>
+          </StackPanel>
+          <TextBlock x:Name="DashboardTextBlock"
+                     FontSize="48"
+                     FontWeight="Bold"
+                     FontFamily="Consolas, Monaco, 'Courier New', monospace"
+                     Foreground="{DynamicResource TextFillColorPrimaryBrush}" />
+        </StackPanel>
+      </StackPanel>
+
+      <!-- 按钮动画区域（左下角） -->
+      <Grid x:Name="ButtonAnimationArea"
+            Width="280"
+            Height="80"
+            HorizontalAlignment="Left"
+            VerticalAlignment="Bottom"
+            Margin="0,0,0,40"
+            IsVisible="False">
+
+        <!-- 方框边框（由鼠标画出） -->
+        <Border x:Name="DrawnBorder"
+                Width="160"
+                Height="56"
+                HorizontalAlignment="Left"
+                VerticalAlignment="Top"
+                Background="Transparent"
+                BorderBrush="{DynamicResource AccentFillColorDefaultBrush}"
+                BorderThickness="0"
+                CornerRadius="{DynamicResource DesignCornerRadiusMd}">
+        </Border>
+
+        <!-- 开始按钮（从方框中弹出） -->
+        <Button x:Name="StartButton"
+                Width="160"
+                Height="56"
+                HorizontalAlignment="Left"
+                VerticalAlignment="Top"
+                Theme="{DynamicResource AccentButtonTheme}"
+                Opacity="0"
+                IsVisible="False"
+                RenderTransformOrigin="0.5,0.5">
+          <Button.RenderTransform>
+            <ScaleTransform ScaleX="0.1" ScaleY="0.1" />
+          </Button.RenderTransform>
+          <TextBlock Text="开始使用"
+                     FontSize="16"
+                     FontWeight="SemiBold" />
+        </Button>
+
+        <!-- 鼠标光标 -->
+        <Canvas x:Name="MouseCursor"
+                Width="24"
+                Height="24"
+                HorizontalAlignment="Left"
+                VerticalAlignment="Top"
+                Margin="-50,-50,0,0"
+                IsVisible="False">
+          <Path Data="M0,0 L0,18 L4,14 L7,20 L10,19 L7,13 L12,13 Z"
+                Fill="{DynamicResource TextFillColorPrimaryBrush}"
+                Stroke="{DynamicResource SolidBackgroundFillColorBaseBrush}"
+                StrokeThickness="1" />
+        </Canvas>
+      </Grid>
+    </Grid>
+
+    <!-- 步骤 2: 主题选择页面 -->
+    <Grid x:Name="ThemeStep" Margin="48" RowDefinitions="Auto,*,Auto" IsVisible="False">
+      <StackPanel Grid.Row="0" Spacing="8" Margin="0,0,0,24">
+        <TextBlock Text="个性化你的桌面"
+                   FontSize="24"
+                   FontWeight="SemiBold"
+                   Foreground="{DynamicResource TextFillColorPrimaryBrush}" />
+        <TextBlock Text="选择你喜欢的主题样式，可随时在设置中更改"
+                   FontSize="13"
+                   Foreground="{DynamicResource TextFillColorSecondaryBrush}" />
+      </StackPanel>
+
+      <ScrollViewer Grid.Row="1" VerticalScrollBarVisibility="Auto">
+        <StackPanel Spacing="20">
+          <!-- 浅色/深色模式选择 -->
+          <Border Background="{DynamicResource CardBackgroundFillColorDefaultBrush}"
+                  CornerRadius="{DynamicResource DesignCornerRadiusMd}"
+                  Padding="16">
+            <StackPanel Spacing="12">
+              <TextBlock Text="外观模式"
+                         FontSize="14"
+                         FontWeight="SemiBold"
+                         Foreground="{DynamicResource TextFillColorPrimaryBrush}" />
+              <Grid ColumnDefinitions="*,*" ColumnSpacing="12">
+                <Border x:Name="LightModeOption"
+                        Grid.Column="0"
+                        Background="{DynamicResource SolidBackgroundFillColorQuarternaryBrush}"
+                        CornerRadius="{DynamicResource DesignCornerRadiusMd}"
+                        BorderThickness="2"
+                        BorderBrush="{DynamicResource AccentFillColorDefaultBrush}"
+                        Padding="16"
+                        Cursor="Hand">
+                  <StackPanel Spacing="8" HorizontalAlignment="Center">
+                    <Border Width="48"
+                            Height="48"
+                            Background="#F3F3F3"
+                            CornerRadius="8"
+                            BorderBrush="#E0E0E0"
+                            BorderThickness="1">
+                      <fi:SymbolIcon Symbol="WeatherSunny"
+                                     FontSize="24"
+                                     Foreground="#5F5F5F"
+                                     HorizontalAlignment="Center"
+                                     VerticalAlignment="Center"/>
+                    </Border>
+                    <TextBlock Text="浅色模式"
+                               FontSize="13"
+                               HorizontalAlignment="Center"
+                               Foreground="{DynamicResource TextFillColorPrimaryBrush}" />
+                    <RadioButton x:Name="LightModeRadio"
+                                 GroupName="ThemeMode"
+                                 IsChecked="True"
+                                 HorizontalAlignment="Center" />
+                  </StackPanel>
+                </Border>
+
+                <Border x:Name="DarkModeOption"
+                        Grid.Column="1"
+                        Background="{DynamicResource SolidBackgroundFillColorQuarternaryBrush}"
+                        CornerRadius="{DynamicResource DesignCornerRadiusMd}"
+                        BorderThickness="1"
+                        BorderBrush="{DynamicResource CardStrokeColorDefaultBrush}"
+                        Padding="16"
+                        Cursor="Hand">
+                  <StackPanel Spacing="8" HorizontalAlignment="Center">
+                    <Border Width="48"
+                            Height="48"
+                            Background="#1E1E1E"
+                            CornerRadius="8"
+                            BorderBrush="#333333"
+                            BorderThickness="1">
+                      <fi:SymbolIcon Symbol="WeatherMoon"
+                                     FontSize="24"
+                                     Foreground="#E0E0E0"
+                                     HorizontalAlignment="Center"
+                                     VerticalAlignment="Center"/>
+                    </Border>
+                    <TextBlock Text="深色模式"
+                               FontSize="13"
+                               HorizontalAlignment="Center"
+                               Foreground="{DynamicResource TextFillColorPrimaryBrush}" />
+                    <RadioButton x:Name="DarkModeRadio"
+                                 GroupName="ThemeMode"
+                                 HorizontalAlignment="Center" />
+                  </StackPanel>
+                </Border>
+              </Grid>
+            </StackPanel>
+          </Border>
+
+          <!-- 主题色选择 -->
+          <Border Background="{DynamicResource CardBackgroundFillColorDefaultBrush}"
+                  CornerRadius="{DynamicResource DesignCornerRadiusMd}"
+                  Padding="16">
+            <StackPanel Spacing="12">
+              <TextBlock Text="主题色"
+                         FontSize="14"
+                         FontWeight="SemiBold"
+                         Foreground="{DynamicResource TextFillColorPrimaryBrush}" />
+              <WrapPanel x:Name="AccentColorPanel" HorizontalAlignment="Left">
+                <!-- 预设颜色 -->
+                <Border x:Name="BlueColor"
+                        Width="40"
+                        Height="40"
+                        Background="#0078D4"
+                        CornerRadius="20"
+                        BorderThickness="3"
+                        BorderBrush="{DynamicResource AccentFillColorDefaultBrush}"
+                        Margin="0,0,12,12"
+                        Cursor="Hand">
+                  <Border.Styles>
+                    <Style Selector="Border:pointerover">
+                      <Setter Property="RenderTransform" Value="scale(1.1)" />
+                    </Style>
+                  </Border.Styles>
+                </Border>
+                <Border x:Name="PurpleColor"
+                        Width="40"
+                        Height="40"
+                        Background="#7B68EE"
+                        CornerRadius="20"
+                        BorderThickness="0"
+                        Margin="0,0,12,12"
+                        Cursor="Hand" />
+                <Border x:Name="GreenColor"
+                        Width="40"
+                        Height="40"
+                        Background="#107C10"
+                        CornerRadius="20"
+                        BorderThickness="0"
+                        Margin="0,0,12,12"
+                        Cursor="Hand" />
+                <Border x:Name="OrangeColor"
+                        Width="40"
+                        Height="40"
+                        Background="#D83B01"
+                        CornerRadius="20"
+                        BorderThickness="0"
+                        Margin="0,0,12,12"
+                        Cursor="Hand" />
+                <Border x:Name="PinkColor"
+                        Width="40"
+                        Height="40"
+                        Background="#E3008C"
+                        CornerRadius="20"
+                        BorderThickness="0"
+                        Margin="0,0,12,12"
+                        Cursor="Hand" />
+                <Border x:Name="TealColor"
+                        Width="40"
+                        Height="40"
+                        Background="#008080"
+                        CornerRadius="20"
+                        BorderThickness="0"
+                        Margin="0,0,12,12"
+                        Cursor="Hand" />
+              </WrapPanel>
+            </StackPanel>
+          </Border>
+
+          <!-- 莫奈取色来源 -->
+          <Border Background="{DynamicResource CardBackgroundFillColorDefaultBrush}"
+                  CornerRadius="{DynamicResource DesignCornerRadiusMd}"
+                  Padding="16">
+            <StackPanel Spacing="12">
+              <TextBlock Text="莫奈取色来源"
+                         FontSize="14"
+                         FontWeight="SemiBold"
+                         Foreground="{DynamicResource TextFillColorPrimaryBrush}" />
+              <TextBlock Text="从壁纸自动提取主题色，让界面与桌面完美融合"
+                         FontSize="12"
+                         Foreground="{DynamicResource TextFillColorSecondaryBrush}" />
+
+              <StackPanel Spacing="8">
+                <Border x:Name="MonetFromWallpaperOption"
+                        Background="{DynamicResource SolidBackgroundFillColorQuarternaryBrush}"
+                        CornerRadius="{DynamicResource DesignCornerRadiusMd}"
+                        BorderThickness="2"
+                        BorderBrush="{DynamicResource AccentFillColorDefaultBrush}"
+                        Padding="12"
+                        Cursor="Hand">
+                  <Grid ColumnDefinitions="Auto,*">
+                    <RadioButton x:Name="MonetFromWallpaperRadio"
+                                 Grid.Column="0"
+                                 GroupName="MonetSource"
+                                 IsChecked="True"
+                                 VerticalAlignment="Center"
+                                 Margin="0,0,12,0" />
+                    <StackPanel Grid.Column="1" Spacing="4">
+                      <TextBlock Text="从桌面壁纸取色"
+                                 FontSize="13"
+                                 FontWeight="SemiBold"
+                                 Foreground="{DynamicResource TextFillColorPrimaryBrush}" />
+                      <TextBlock Text="自动分析当前壁纸颜色生成主题"
+                                 FontSize="11"
+                                 Foreground="{DynamicResource TextFillColorSecondaryBrush}" />
+                    </StackPanel>
+                  </Grid>
+                </Border>
+
+                <Border x:Name="MonetFromCustomOption"
+                        Background="{DynamicResource SolidBackgroundFillColorQuarternaryBrush}"
+                        CornerRadius="{DynamicResource DesignCornerRadiusMd}"
+                        BorderThickness="1"
+                        BorderBrush="{DynamicResource CardStrokeColorDefaultBrush}"
+                        Padding="12"
+                        Cursor="Hand">
+                  <Grid ColumnDefinitions="Auto,*">
+                    <RadioButton x:Name="MonetFromCustomRadio"
+                                 Grid.Column="0"
+                                 GroupName="MonetSource"
+                                 VerticalAlignment="Center"
+                                 Margin="0,0,12,0" />
+                    <StackPanel Grid.Column="1" Spacing="4">
+                      <TextBlock Text="自定义图片取色"
+                                 FontSize="13"
+                                 FontWeight="SemiBold"
+                                 Foreground="{DynamicResource TextFillColorPrimaryBrush}" />
+                      <TextBlock Text="选择一张图片作为取色来源"
+                                 FontSize="11"
+                                 Foreground="{DynamicResource TextFillColorSecondaryBrush}" />
+                    </StackPanel>
+                  </Grid>
+                </Border>
+
+                <Border x:Name="MonetDisabledOption"
+                        Background="{DynamicResource SolidBackgroundFillColorQuarternaryBrush}"
+                        CornerRadius="{DynamicResource DesignCornerRadiusMd}"
+                        BorderThickness="1"
+                        BorderBrush="{DynamicResource CardStrokeColorDefaultBrush}"
+                        Padding="12"
+                        Cursor="Hand">
+                  <Grid ColumnDefinitions="Auto,*">
+                    <RadioButton x:Name="MonetDisabledRadio"
+                                 Grid.Column="0"
+                                 GroupName="MonetSource"
+                                 VerticalAlignment="Center"
+                                 Margin="0,0,12,0" />
+                    <StackPanel Grid.Column="1" Spacing="4">
+                      <TextBlock Text="不使用莫奈取色"
+                                 FontSize="13"
+                                 FontWeight="SemiBold"
+                                 Foreground="{DynamicResource TextFillColorPrimaryBrush}" />
+                      <TextBlock Text="使用固定的预设主题色"
+                                 FontSize="11"
+                                 Foreground="{DynamicResource TextFillColorSecondaryBrush}" />
+                    </StackPanel>
+                  </Grid>
+                </Border>
+              </StackPanel>
+            </StackPanel>
+          </Border>
+        </StackPanel>
+      </ScrollViewer>
+
+      <StackPanel Grid.Row="2"
+                  Orientation="Horizontal"
+                  HorizontalAlignment="Right"
+                  Spacing="12"
+                  Margin="0,24,0,0">
+        <Button x:Name="ThemeBackButton"
+                Content="返回"
+                Theme="{DynamicResource ButtonTheme}" />
+        <Button x:Name="ThemeNextButton"
+                Content="下一步"
+                Theme="{DynamicResource AccentButtonTheme}" />
+      </StackPanel>
+    </Grid>
+
+    <!-- 步骤 3: 数据位置选择页面 -->
+    <Grid x:Name="DataLocationStep" Margin="48" RowDefinitions="Auto,*,Auto" IsVisible="False">
+      <StackPanel Grid.Row="0" Spacing="8" Margin="0,0,0,24">
+        <TextBlock Text="选择数据保存位置"
+                   FontSize="24"
+                   FontWeight="SemiBold"
+                   Foreground="{DynamicResource TextFillColorPrimaryBrush}" />
+        <TextBlock Text="决定将应用数据保存在哪里，可随时在设置中更改"
+                   FontSize="13"
+                   Foreground="{DynamicResource TextFillColorSecondaryBrush}" />
+      </StackPanel>
+
+      <StackPanel Grid.Row="1" Spacing="16">
+        <Border x:Name="AdminWarningBanner"
+                Background="{DynamicResource SystemFillColorCriticalBackgroundBrush}"
+                CornerRadius="{DynamicResource DesignCornerRadiusMd}"
+                Padding="12,10"
+                IsVisible="False">
+          <StackPanel Spacing="4">
+            <StackPanel Orientation="Horizontal" Spacing="6">
+              <PathIcon Data="M12,2 L1,21 L23,21 Z M11,9 L13,9 L13,15 L11,15 Z M11,17 L13,17 L13,19 L11,19 Z"
+                        Width="16"
+                        Height="16"
+                        Foreground="{DynamicResource SystemFillColorCriticalBrush}" />
+              <TextBlock Text="无法保存到应用目录"
+                         FontWeight="SemiBold"
+                         FontSize="13"
+                         Foreground="{DynamicResource SystemFillColorCriticalBrush}" />
+            </StackPanel>
+            <TextBlock Text="当前安装目录需要管理员权限才能写入，数据将自动保存到系统用户目录。"
+                       FontSize="12"
+                       TextWrapping="Wrap"
+                       Foreground="{DynamicResource SystemFillColorCriticalBrush}" />
+          </StackPanel>
+        </Border>
+
+        <Border x:Name="SystemOptionBorder"
+                Background="{DynamicResource CardBackgroundFillColorDefaultBrush}"
+                CornerRadius="{DynamicResource DesignCornerRadiusMd}"
+                BorderThickness="2"
+                BorderBrush="{DynamicResource AccentFillColorDefaultBrush}"
+                Padding="16,14"
+                Cursor="Hand">
+          <Grid ColumnDefinitions="Auto,*">
+            <RadioButton x:Name="SystemRadio"
+                         Grid.Column="0"
+                         VerticalAlignment="Top"
+                         Margin="0,2,12,0"
+                         GroupName="DataLocation"
+                         IsChecked="True" />
+            <StackPanel Grid.Column="1" Spacing="4">
+              <TextBlock Text="保存在系统用户目录（推荐）"
+                         FontSize="14"
+                         FontWeight="SemiBold"
+                         Foreground="{DynamicResource TextFillColorPrimaryBrush}" />
+              <TextBlock Text="数据与当前 Windows 用户绑定，重装应用或更新后数据不会丢失"
+                         FontSize="12"
+                         TextWrapping="Wrap"
+                         Foreground="{DynamicResource TextFillColorSecondaryBrush}" />
+              <TextBlock x:Name="SystemPathText"
+                         FontSize="11"
+                         TextWrapping="Wrap"
+                         Foreground="{DynamicResource TextFillColorTertiaryBrush}"
+                         Margin="0,4,0,0" />
+            </StackPanel>
+          </Grid>
+        </Border>
+
+        <Border x:Name="PortableOptionBorder"
+                Background="{DynamicResource CardBackgroundFillColorDefaultBrush}"
+                CornerRadius="{DynamicResource DesignCornerRadiusMd}"
+                BorderThickness="1"
+                BorderBrush="{DynamicResource CardStrokeColorDefaultBrush}"
+                Padding="16,14"
+                Cursor="Hand">
+          <Grid ColumnDefinitions="Auto,*">
+            <RadioButton x:Name="PortableRadio"
+                         Grid.Column="0"
+                         VerticalAlignment="Top"
+                         Margin="0,2,12,0"
+                         GroupName="DataLocation"
+                         IsEnabled="False" />
+            <StackPanel Grid.Column="1" Spacing="4">
+              <TextBlock Text="保存在应用安装目录"
+                         FontSize="14"
+                         FontWeight="SemiBold"
+                         Foreground="{DynamicResource TextFillColorPrimaryBrush}" />
+              <TextBlock Text="便于携带，可随应用文件夹整体移动到其他电脑"
+                         FontSize="12"
+                         TextWrapping="Wrap"
+                         Foreground="{DynamicResource TextFillColorSecondaryBrush}" />
+              <TextBlock x:Name="PortablePathText"
+                         FontSize="11"
+                         TextWrapping="Wrap"
+                         Foreground="{DynamicResource TextFillColorTertiaryBrush}"
+                         Margin="0,4,0,0" />
+            </StackPanel>
+          </Grid>
+        </Border>
+
+        <Border x:Name="MigrationInfoBorder"
+                Background="{DynamicResource SystemFillColorSuccessBackgroundBrush}"
+                CornerRadius="{DynamicResource DesignCornerRadiusMd}"
+                Padding="12,10"
+                IsVisible="False">
+          <StackPanel Orientation="Horizontal" Spacing="6">
+            <PathIcon Data="M9,16.17 L4.83,12 L3.41,13.41 L9,19 L21,7 L19.59,5.59 Z"
+                      Width="16"
+                      Height="16"
+                      Foreground="{DynamicResource SystemFillColorSuccessBrush}" />
+            <TextBlock x:Name="MigrationInfoText"
+                       FontSize="12"
+                       TextWrapping="Wrap"
+                       Foreground="{DynamicResource SystemFillColorSuccessBrush}" />
+          </StackPanel>
+        </Border>
+      </StackPanel>
+
+      <StackPanel Grid.Row="2"
+                  Orientation="Horizontal"
+                  HorizontalAlignment="Right"
+                  Spacing="12"
+                  Margin="0,24,0,0">
+        <Button x:Name="DataLocationBackButton"
+                Content="返回"
+                Theme="{DynamicResource ButtonTheme}" />
+        <Button x:Name="DataLocationNextButton"
+                Content="下一步"
+                Theme="{DynamicResource AccentButtonTheme}" />
+      </StackPanel>
+    </Grid>
+
+    <!-- 步骤 4: 欢迎完成页面 -->
+    <Grid x:Name="WelcomeStep" Margin="48" RowDefinitions="*,Auto" IsVisible="False">
+      <StackPanel Grid.Row="0"
+                  VerticalAlignment="Center"
+                  HorizontalAlignment="Center"
+                  Spacing="32">
+
+        <Border Width="96"
+                Height="96"
+                Background="{DynamicResource SystemFillColorSuccessBackgroundBrush}"
+                CornerRadius="48"
+                HorizontalAlignment="Center">
+          <PathIcon Data="M9,16.17 L4.83,12 L3.41,13.41 L9,19 L21,7 L19.59,5.59 Z"
+                    Width="48"
+                    Height="48"
+                    Foreground="{DynamicResource SystemFillColorSuccessBrush}"
+                    HorizontalAlignment="Center"
+                    VerticalAlignment="Center"/>
+        </Border>
+
+        <StackPanel Spacing="12" HorizontalAlignment="Center">
+          <TextBlock Text="欢迎使用阑山桌面"
+                     FontSize="32"
+                     FontWeight="SemiBold"
+                     Foreground="{DynamicResource TextFillColorPrimaryBrush}"
                      HorizontalAlignment="Center" />
           <TextBlock Text="你的桌面，不止一面"
-                     FontSize="14"
+                     FontSize="16"
                      Foreground="{DynamicResource TextFillColorSecondaryBrush}"
                      HorizontalAlignment="Center" />
         </StackPanel>
-        
       </StackPanel>
 
-      <!-- 底部：圆形开始按钮 -->
       <Button Grid.Row="1"
               x:Name="EnterButton"
               HorizontalAlignment="Center"
               Width="56"
               Height="56"
-              Margin="0,0,0,16"
+              Margin="0,0,0,24"
               Theme="{DynamicResource AccentButtonTheme}"
               CornerRadius="28">
-        <ui:SymbolIcon Symbol="Forward"
+        <fi:SymbolIcon Symbol="ArrowRight"
                        FontSize="24"
-                       Foreground="{DynamicResource TextOnAccentFillColorPrimaryBrush}"/>
+                       Foreground="{DynamicResource TextFillColorPrimaryBrush}"/>
       </Button>
     </Grid>
   </Grid>

LanMountainDesktop.Launcher/Views/OobeWindow.axaml.cs

@@ -1,182 +1,709 @@
 using Avalonia;
 using Avalonia.Animation;
-using Avalonia.Animation.Easings;
 using Avalonia.Controls;
+using Avalonia.Input;
 using Avalonia.Interactivity;
 using Avalonia.Markup.Xaml;
 using Avalonia.Media;
-using Avalonia.Styling;
+using Avalonia.Threading;
+using LanMountainDesktop.Launcher.Models;
+using LanMountainDesktop.Launcher.Services;
 
 namespace LanMountainDesktop.Launcher.Views;
 
 public partial class OobeWindow : Window
 {
+    private const int AnimationDurationMs = 300;
+    private const int TypingDelayMs = 100;
+
     private readonly TaskCompletionSource<bool> _completionSource = new();
+    private readonly DataLocationResolver _resolver;
     private bool _isTransitioning;
+    private bool _isDebugMode;
+    private int _currentStep = 1;
+    
+    // 数据位置选择
+    private DataLocationMode _selectedDataLocationMode = DataLocationMode.System;
+    private bool _migrateExistingData;
+    
+    // 主题选择
+    private Services.ThemeMode _selectedThemeMode = Services.ThemeMode.Light;
+    private string _selectedAccentColor = "#0078D4";
+    private MonetSource _selectedMonetSource = MonetSource.Wallpaper;
 
     public OobeWindow()
     {
         AvaloniaXamlLoader.Load(this);
         Loaded += OnWindowLoaded;
         Opened += OnWindowOpened;
+
+        var appRoot = AppDomain.CurrentDomain.BaseDirectory;
+        _resolver = new DataLocationResolver(appRoot);
     }
 
+    public void SetDebugMode(bool isDebugMode)
+    {
+        _isDebugMode = isDebugMode;
+    }
+
+    public Task WaitForEnterAsync() => _completionSource.Task;
+
     private void OnWindowLoaded(object? sender, RoutedEventArgs e)
     {
-        Console.WriteLine("[OobeWindow] Window loaded, initializing components...");
+        InitializeDataLocationStep();
+        SetupEventHandlers();
+    }
 
-        var enterButton = this.FindControl<Button>("EnterButton");
-        if (enterButton is not null)
+    private void SetupEventHandlers()
+    {
+        // 步骤 1: 开始按钮
+        if (this.FindControl<Button>("StartButton") is { } startButton)
+        {
+            startButton.Click += OnStartButtonClick;
+        }
+
+        // 步骤 2: 主题选择页面
+        if (this.FindControl<Button>("ThemeBackButton") is { } themeBackButton)
+        {
+            themeBackButton.Click += OnThemeBackClick;
+        }
+
+        if (this.FindControl<Button>("ThemeNextButton") is { } themeNextButton)
+        {
+            themeNextButton.Click += OnThemeNextClick;
+        }
+
+        // 浅色/深色模式选择
+        if (this.FindControl<Border>("LightModeOption") is { } lightModeOption)
+        {
+            lightModeOption.PointerPressed += (s, e) => SelectThemeMode(Services.ThemeMode.Light);
+        }
+
+        if (this.FindControl<Border>("DarkModeOption") is { } darkModeOption)
+        {
+            darkModeOption.PointerPressed += (s, e) => SelectThemeMode(Services.ThemeMode.Dark);
+        }
+
+        if (this.FindControl<RadioButton>("LightModeRadio") is { } lightModeRadio)
+        {
+            lightModeRadio.IsCheckedChanged += (s, e) =>
+            {
+                if (lightModeRadio.IsChecked == true) SelectThemeMode(Services.ThemeMode.Light);
+            };
+        }
+
+        if (this.FindControl<RadioButton>("DarkModeRadio") is { } darkModeRadio)
+        {
+            darkModeRadio.IsCheckedChanged += (s, e) =>
+            {
+                if (darkModeRadio.IsChecked == true) SelectThemeMode(Services.ThemeMode.Dark);
+            };
+        }
+
+        // 主题色选择
+        SetupAccentColorHandlers();
+
+        // 莫奈取色来源选择
+        if (this.FindControl<Border>("MonetFromWallpaperOption") is { } monetWallpaperOption)
+        {
+            monetWallpaperOption.PointerPressed += (s, e) => SelectMonetSource(MonetSource.Wallpaper);
+        }
+
+        if (this.FindControl<Border>("MonetFromCustomOption") is { } monetCustomOption)
+        {
+            monetCustomOption.PointerPressed += (s, e) => SelectMonetSource(MonetSource.Custom);
+        }
+
+        if (this.FindControl<Border>("MonetDisabledOption") is { } monetDisabledOption)
+        {
+            monetDisabledOption.PointerPressed += (s, e) => SelectMonetSource(MonetSource.Disabled);
+        }
+
+        if (this.FindControl<RadioButton>("MonetFromWallpaperRadio") is { } monetWallpaperRadio)
+        {
+            monetWallpaperRadio.IsCheckedChanged += (s, e) =>
+            {
+                if (monetWallpaperRadio.IsChecked == true) SelectMonetSource(MonetSource.Wallpaper);
+            };
+        }
+
+        if (this.FindControl<RadioButton>("MonetFromCustomRadio") is { } monetCustomRadio)
+        {
+            monetCustomRadio.IsCheckedChanged += (s, e) =>
+            {
+                if (monetCustomRadio.IsChecked == true) SelectMonetSource(MonetSource.Custom);
+            };
+        }
+
+        if (this.FindControl<RadioButton>("MonetDisabledRadio") is { } monetDisabledRadio)
+        {
+            monetDisabledRadio.IsCheckedChanged += (s, e) =>
+            {
+                if (monetDisabledRadio.IsChecked == true) SelectMonetSource(MonetSource.Disabled);
+            };
+        }
+
+        // 步骤 3: 数据位置选择页面
+        if (this.FindControl<Button>("DataLocationBackButton") is { } dataLocationBackButton)
+        {
+            dataLocationBackButton.Click += OnDataLocationBackClick;
+        }
+
+        if (this.FindControl<Button>("DataLocationNextButton") is { } dataLocationNextButton)
+        {
+            dataLocationNextButton.Click += OnDataLocationNextClick;
+        }
+
+        if (this.FindControl<Border>("SystemOptionBorder") is { } systemOption)
+        {
+            systemOption.PointerPressed += (s, e) => SelectDataLocationMode(DataLocationMode.System);
+        }
+
+        if (this.FindControl<Border>("PortableOptionBorder") is { } portableOption)
+        {
+            portableOption.PointerPressed += (s, e) => SelectDataLocationMode(DataLocationMode.Portable);
+        }
+
+        if (this.FindControl<RadioButton>("SystemRadio") is { } systemRadio)
+        {
+            systemRadio.IsCheckedChanged += (s, e) =>
+            {
+                if (systemRadio.IsChecked == true) SelectDataLocationMode(DataLocationMode.System);
+            };
+        }
+
+        if (this.FindControl<RadioButton>("PortableRadio") is { } portableRadio)
+        {
+            portableRadio.IsCheckedChanged += (s, e) =>
+            {
+                if (portableRadio.IsChecked == true) SelectDataLocationMode(DataLocationMode.Portable);
+            };
+        }
+
+        // 步骤 4: 欢迎完成页面
+        if (this.FindControl<Button>("EnterButton") is { } enterButton)
         {
             enterButton.Click += OnEnterClick;
-            Console.WriteLine("[OobeWindow] EnterButton event bound successfully");
         }
-        else
+    }
+
+    private void SetupAccentColorHandlers()
+    {
+        var colorMap = new Dictionary<string, string>
         {
-            Console.Error.WriteLine("[OobeWindow] Failed to find EnterButton!");
+            { "BlueColor", "#0078D4" },
+            { "PurpleColor", "#7B68EE" },
+            { "GreenColor", "#107C10" },
+            { "OrangeColor", "#D83B01" },
+            { "PinkColor", "#E3008C" },
+            { "TealColor", "#008080" }
+        };
+
+        foreach (var (name, color) in colorMap)
+        {
+            if (this.FindControl<Border>(name) is { } colorBorder)
+            {
+                colorBorder.PointerPressed += (s, e) => SelectAccentColor(name, color);
+            }
         }
     }
 
     private async void OnWindowOpened(object? sender, EventArgs e)
     {
-        Console.WriteLine("[OobeWindow] Window opened, playing entrance animation...");
-        await PlayEntranceAnimationAsync();
+        await PlayTypingAnimationAsync();
     }
 
-    private async Task PlayEntranceAnimationAsync()
+    private async Task PlayTypingAnimationAsync()
     {
-        try
+        var typingTextBlock = this.FindControl<TextBlock>("TypingTextBlock");
+        var cursorBorder = this.FindControl<Border>("CursorBorder");
+        var subtitlePanel = this.FindControl<StackPanel>("SubtitlePanel");
+        var buttonAnimationArea = this.FindControl<Grid>("ButtonAnimationArea");
+        var startButton = this.FindControl<Button>("StartButton");
+        var mouseCursor = this.FindControl<Canvas>("MouseCursor");
+
+        if (typingTextBlock == null || cursorBorder == null) return;
+
+        // 打字机效果：阑山桌面 LanMountain Desktop（在同一行）
+        var fullText = "阑山桌面 LanMountain Desktop";
+        for (int i = 0; i <= fullText.Length; i++)
         {
-            var contentGrid = this.FindControl<Grid>("ContentGrid");
-            if (contentGrid is null)
-            {
-                return;
-            }
-
-            var translateTransform = contentGrid.RenderTransform as TranslateTransform ?? new TranslateTransform();
-            contentGrid.RenderTransform = translateTransform;
-
-            var offset = ResolveEntranceOffset();
-            contentGrid.Opacity = 0;
-            translateTransform.Y = offset;
-
-            var fadeInAnimation = new Animation
-            {
-                Duration = TimeSpan.FromMilliseconds(600),
-                Easing = new CubicEaseOut(),
-                Children =
-                {
-                    new KeyFrame
-                    {
-                        Setters = { new Setter(OpacityProperty, 0.0) },
-                        KeyTime = TimeSpan.FromMilliseconds(0)
-                    },
-                    new KeyFrame
-                    {
-                        Setters = { new Setter(OpacityProperty, 1.0) },
-                        KeyTime = TimeSpan.FromMilliseconds(600)
-                    }
-                }
-            };
-
-            var slideUpAnimation = new Animation
-            {
-                Duration = TimeSpan.FromMilliseconds(600),
-                Easing = new CubicEaseOut(),
-                Children =
-                {
-                    new KeyFrame
-                    {
-                        Setters = { new Setter(TranslateTransform.YProperty, offset) },
-                        KeyTime = TimeSpan.FromMilliseconds(0)
-                    },
-                    new KeyFrame
-                    {
-                        Setters = { new Setter(TranslateTransform.YProperty, 0.0) },
-                        KeyTime = TimeSpan.FromMilliseconds(600)
-                    }
-                }
-            };
-
-            await Task.WhenAll(
-                fadeInAnimation.RunAsync(contentGrid),
-                slideUpAnimation.RunAsync(translateTransform));
-
-            Console.WriteLine("[OobeWindow] Entrance animation completed");
+            typingTextBlock.Text = fullText.Substring(0, i);
+            await Task.Delay(TypingDelayMs);
         }
-        catch (Exception ex)
+
+        // 停顿一下
+        await Task.Delay(500);
+
+        // 隐藏光标
+        cursorBorder.IsVisible = false;
+
+        // 显示副标题（打字机效果：下一代 互动信息看板）
+        if (subtitlePanel != null)
         {
-            Console.Error.WriteLine($"[OobeWindow] Error playing entrance animation: {ex.Message}");
+            subtitlePanel.IsVisible = true;
+            subtitlePanel.Opacity = 1;
+            await PlaySubtitleTypingAnimationAsync();
+        }
+
+        // 停顿一下再显示按钮
+        await Task.Delay(400);
+
+        // 显示按钮动画区域
+        if (buttonAnimationArea != null)
+        {
+            buttonAnimationArea.IsVisible = true;
+        }
+
+        // 鼠标拖拽按钮入场
+        if (mouseCursor != null && startButton != null)
+        {
+            await AnimateMouseDragButtonAsync(mouseCursor, startButton);
         }
     }
 
-    public Task WaitForEnterAsync() => _completionSource.Task;
+    private async Task AnimateMouseDragButtonAsync(Canvas mouseCursor, Button button)
+    {
+        // 初始处于画面外部的 X 坐标
+        var startX = -400.0;
+        var endX = 0.0;
+        
+        button.IsVisible = true;
+        button.Opacity = 1;
+        button.RenderTransform = new TranslateTransform(startX, 0);
+        
+        // 鼠标位于按钮上，比如偏移 (100, 30) 的位置
+        var mouseOffsetX = 100.0;
+        var mouseOffsetY = 30.0;
+        mouseCursor.Margin = new Thickness(startX + mouseOffsetX, mouseOffsetY, 0, 0);
+        mouseCursor.IsVisible = true;
+        
+        await Task.Delay(300);
+
+        var duration = 800;
+        var steps = 40;
+        var delay = duration / steps;
+
+        for (int i = 0; i <= steps; i++)
+        {
+            var progress = (double)i / steps;
+            var eased = EaseOutBack(progress); // 使用 EaseOutBack 营造“拖拽到位”的清脆回弹感
+
+            var currentX = startX + (endX - startX) * eased;
+
+            button.RenderTransform = new TranslateTransform(currentX, 0);
+            mouseCursor.Margin = new Thickness(currentX + mouseOffsetX, mouseOffsetY, 0, 0);
+
+            await Task.Delay(delay);
+        }
+        
+        await Task.Delay(200);
+
+        // 隐藏鼠标光标
+        await AnimateOpacityAsync(mouseCursor, 1, 0, 200);
+        mouseCursor.IsVisible = false;
+    }
+
+    private async Task PlaySubtitleTypingAnimationAsync()
+    {
+        var nextGenTextBlock = this.FindControl<TextBlock>("NextGenTextBlock");
+        var dashboardTextBlock = this.FindControl<TextBlock>("DashboardTextBlock");
+        var subtitleCursorBorder = this.FindControl<Border>("SubtitleCursorBorder");
+
+        if (nextGenTextBlock == null || dashboardTextBlock == null) return;
+
+        // 获取渐变画刷
+        var gradientBrush = nextGenTextBlock.Foreground as LinearGradientBrush;
+
+        // 启动渐变色流动动画
+        if (gradientBrush != null)
+        {
+            _ = AnimateGradientFlowAsync(gradientBrush);
+        }
+
+        // 显示光标
+        if (subtitleCursorBorder != null)
+        {
+            subtitleCursorBorder.IsVisible = true;
+        }
+
+        // 打字机效果：下一代
+        var nextGenText = "下一代";
+        for (int i = 0; i <= nextGenText.Length; i++)
+        {
+            nextGenTextBlock.Text = nextGenText.Substring(0, i);
+            await Task.Delay(TypingDelayMs);
+        }
+
+        // 停顿一下
+        await Task.Delay(200);
+
+        // 换行，光标移到第二行
+        if (subtitleCursorBorder != null)
+        {
+            subtitleCursorBorder.IsVisible = false;
+        }
+
+        // 打字机效果：互动信息看板
+        var dashboardText = "互动信息看板";
+        for (int i = 0; i <= dashboardText.Length; i++)
+        {
+            dashboardTextBlock.Text = dashboardText.Substring(0, i);
+            await Task.Delay(TypingDelayMs);
+        }
+
+        // 停顿一下后隐藏光标
+        await Task.Delay(300);
+    }
+
+    private async Task AnimateGradientFlowAsync(LinearGradientBrush? gradientBrush)
+    {
+        if (gradientBrush == null) return;
+
+        var stops = gradientBrush.GradientStops;
+        if (stops.Count < 2) return;
+
+        // 获取原有的所有颜色
+        var colors = new System.Collections.Generic.List<Color>();
+        foreach (var stop in stops)
+        {
+            colors.Add(stop.Color);
+        }
+        
+        // 为了实现无缝循环流动，把第一个颜色追加到最后
+        colors.Add(colors[0]);
+
+        // 重新分配 GradientStops
+        stops.Clear();
+        for (int i = 0; i < colors.Count; i++)
+        {
+            stops.Add(new GradientStop(colors[i], (double)i / (colors.Count - 1)));
+        }
+
+        // 设置铺展模式，超出范围时重复
+        gradientBrush.SpreadMethod = GradientSpreadMethod.Repeat;
+
+        double offset = 0;
+
+        while (true)
+        {
+            offset -= 0.005; // 每次流动一小步，负数表示向右流动
+            if (offset <= -1.0) offset = 0;
+
+            // 让渐变保持水平方向，但位置不断偏移，形成河流般的流动效果
+            gradientBrush.StartPoint = new RelativePoint(offset, 0, RelativeUnit.Relative);
+            gradientBrush.EndPoint = new RelativePoint(offset + 1, 0, RelativeUnit.Relative);
+
+            await Task.Delay(16); // 约60帧
+        }
+    }
+
+    private async void OnStartButtonClick(object? sender, RoutedEventArgs e)
+    {
+        if (_isTransitioning) return;
+        await NavigateToStep(2);
+    }
+
+    // 主题选择页面按钮
+    private async void OnThemeBackClick(object? sender, RoutedEventArgs e)
+    {
+        if (_isTransitioning) return;
+        await NavigateToStep(1);
+    }
+
+    private async void OnThemeNextClick(object? sender, RoutedEventArgs e)
+    {
+        if (_isTransitioning) return;
+        await NavigateToStep(3);
+    }
+
+    // 数据位置选择页面按钮
+    private async void OnDataLocationBackClick(object? sender, RoutedEventArgs e)
+    {
+        if (_isTransitioning) return;
+        await NavigateToStep(2);
+    }
+
+    private async void OnDataLocationNextClick(object? sender, RoutedEventArgs e)
+    {
+        if (_isTransitioning) return;
+
+        // 应用数据位置选择
+        if (!_isDebugMode)
+        {
+            _resolver.ApplyLocationChoice(_selectedDataLocationMode, _migrateExistingData);
+        }
+
+        await NavigateToStep(4);
+    }
 
     private async void OnEnterClick(object? sender, RoutedEventArgs e)
     {
-        if (_isTransitioning)
-        {
-            return;
-        }
-
+        if (_isTransitioning) return;
         _isTransitioning = true;
-        Console.WriteLine("[OobeWindow] Enter button clicked, starting transition...");
 
         try
         {
             await PlayExitAnimationAsync();
             _completionSource.TrySetResult(true);
+            Close();
         }
         catch (Exception ex)
         {
-            Console.Error.WriteLine($"[OobeWindow] Error during transition: {ex.Message}");
+            Console.Error.WriteLine($"[OobeWindow] Error: {ex.Message}");
             _completionSource.TrySetResult(true);
+            Close();
         }
     }
 
+    private void InitializeDataLocationStep()
+    {
+        if (this.FindControl<TextBlock>("SystemPathText") is { } systemPathText)
+        {
+            systemPathText.Text = _resolver.DefaultSystemDataPath;
+        }
+
+        if (this.FindControl<TextBlock>("PortablePathText") is { } portablePathText)
+        {
+            portablePathText.Text = _resolver.DefaultPortableDataPath;
+        }
+
+        var canWriteToAppRoot = _resolver.IsPortableModeAllowed();
+        if (this.FindControl<RadioButton>("PortableRadio") is { } portableRadio)
+        {
+            portableRadio.IsEnabled = canWriteToAppRoot;
+        }
+
+        if (!canWriteToAppRoot)
+        {
+            if (this.FindControl<Border>("AdminWarningBanner") is { } warningBanner)
+            {
+                warningBanner.IsVisible = true;
+            }
+        }
+
+        if (_resolver.HasExistingSystemData())
+        {
+            _migrateExistingData = true;
+            if (this.FindControl<Border>("MigrationInfoBorder") is { } migrationInfo)
+            {
+                migrationInfo.IsVisible = true;
+            }
+            if (this.FindControl<TextBlock>("MigrationInfoText") is { } migrationText)
+            {
+                migrationText.Text = "检测到现有数据，选择便携模式时将自动迁移。";
+            }
+        }
+    }
+
+    private void SelectDataLocationMode(DataLocationMode mode)
+    {
+        _selectedDataLocationMode = mode;
+
+        if (this.FindControl<RadioButton>("SystemRadio") is { } systemRadio)
+        {
+            systemRadio.IsChecked = mode == DataLocationMode.System;
+        }
+
+        if (this.FindControl<RadioButton>("PortableRadio") is { } portableRadio)
+        {
+            portableRadio.IsChecked = mode == DataLocationMode.Portable;
+        }
+
+        if (this.FindControl<Border>("SystemOptionBorder") is { } systemBorder)
+        {
+            systemBorder.BorderBrush = mode == DataLocationMode.System
+                ? Application.Current?.Resources["AccentFillColorDefaultBrush"] as IBrush
+                : Application.Current?.Resources["CardStrokeColorDefaultBrush"] as IBrush;
+            systemBorder.BorderThickness = mode == DataLocationMode.System
+                ? new Thickness(2)
+                : new Thickness(1);
+        }
+
+        if (this.FindControl<Border>("PortableOptionBorder") is { } portableBorder)
+        {
+            portableBorder.BorderBrush = mode == DataLocationMode.Portable
+                ? Application.Current?.Resources["AccentFillColorDefaultBrush"] as IBrush
+                : Application.Current?.Resources["CardStrokeColorDefaultBrush"] as IBrush;
+            portableBorder.BorderThickness = mode == DataLocationMode.Portable
+                ? new Thickness(2)
+                : new Thickness(1);
+        }
+    }
+
+    // 主题选择方法
+    private void SelectThemeMode(Services.ThemeMode mode)
+    {
+        _selectedThemeMode = mode;
+
+        // 立即应用主题到启动器
+        ThemeService.ApplyTheme(mode, _selectedAccentColor);
+
+        if (this.FindControl<RadioButton>("LightModeRadio") is { } lightModeRadio)
+        {
+            lightModeRadio.IsChecked = mode == Services.ThemeMode.Light;
+        }
+
+        if (this.FindControl<RadioButton>("DarkModeRadio") is { } darkModeRadio)
+        {
+            darkModeRadio.IsChecked = mode == Services.ThemeMode.Dark;
+        }
+
+        if (this.FindControl<Border>("LightModeOption") is { } lightModeOption)
+        {
+            lightModeOption.BorderBrush = mode == Services.ThemeMode.Light
+                ? Application.Current?.Resources["AccentFillColorDefaultBrush"] as IBrush
+                : Application.Current?.Resources["CardStrokeColorDefaultBrush"] as IBrush;
+            lightModeOption.BorderThickness = mode == Services.ThemeMode.Light
+                ? new Thickness(2)
+                : new Thickness(1);
+        }
+
+        if (this.FindControl<Border>("DarkModeOption") is { } darkModeOption)
+        {
+            darkModeOption.BorderBrush = mode == Services.ThemeMode.Dark
+                ? Application.Current?.Resources["AccentFillColorDefaultBrush"] as IBrush
+                : Application.Current?.Resources["CardStrokeColorDefaultBrush"] as IBrush;
+            darkModeOption.BorderThickness = mode == Services.ThemeMode.Dark
+                ? new Thickness(2)
+                : new Thickness(1);
+        }
+    }
+
+    private void SelectAccentColor(string colorName, string colorValue)
+    {
+        _selectedAccentColor = colorValue;
+
+        // 更新所有颜色圆圈边框
+        var colorBorders = new[] { "BlueColor", "PurpleColor", "GreenColor", "OrangeColor", "PinkColor", "TealColor" };
+        foreach (var name in colorBorders)
+        {
+            if (this.FindControl<Border>(name) is { } border)
+            {
+                var isSelected = name == colorName;
+                border.BorderBrush = isSelected
+                    ? Application.Current?.Resources["TextFillColorPrimaryBrush"] as IBrush
+                    : null;
+                border.BorderThickness = isSelected ? new Thickness(3) : new Thickness(0);
+            }
+        }
+    }
+
+    private void SelectMonetSource(MonetSource source)
+    {
+        _selectedMonetSource = source;
+
+        if (this.FindControl<RadioButton>("MonetFromWallpaperRadio") is { } wallpaperRadio)
+        {
+            wallpaperRadio.IsChecked = source == MonetSource.Wallpaper;
+        }
+
+        if (this.FindControl<RadioButton>("MonetFromCustomRadio") is { } customRadio)
+        {
+            customRadio.IsChecked = source == MonetSource.Custom;
+        }
+
+        if (this.FindControl<RadioButton>("MonetDisabledRadio") is { } disabledRadio)
+        {
+            disabledRadio.IsChecked = source == MonetSource.Disabled;
+        }
+
+        UpdateMonetOptionBorder("MonetFromWallpaperOption", source == MonetSource.Wallpaper);
+        UpdateMonetOptionBorder("MonetFromCustomOption", source == MonetSource.Custom);
+        UpdateMonetOptionBorder("MonetDisabledOption", source == MonetSource.Disabled);
+    }
+
+    private void UpdateMonetOptionBorder(string borderName, bool isSelected)
+    {
+        if (this.FindControl<Border>(borderName) is { } border)
+        {
+            border.BorderBrush = isSelected
+                ? Application.Current?.Resources["AccentFillColorDefaultBrush"] as IBrush
+                : Application.Current?.Resources["CardStrokeColorDefaultBrush"] as IBrush;
+            border.BorderThickness = isSelected ? new Thickness(2) : new Thickness(1);
+        }
+    }
+
+    private async Task NavigateToStep(int step)
+    {
+        if (_isTransitioning || step == _currentStep) return;
+        _isTransitioning = true;
+
+        // 获取当前步骤的控件
+        Grid? currentStepControl = _currentStep switch
+        {
+            1 => this.FindControl<Grid>("TypingStep"),
+            2 => this.FindControl<Grid>("ThemeStep"),
+            3 => this.FindControl<Grid>("DataLocationStep"),
+            4 => this.FindControl<Grid>("WelcomeStep"),
+            _ => null
+        };
+
+        // 获取目标步骤的控件
+        Grid? nextStepControl = step switch
+        {
+            1 => this.FindControl<Grid>("TypingStep"),
+            2 => this.FindControl<Grid>("ThemeStep"),
+            3 => this.FindControl<Grid>("DataLocationStep"),
+            4 => this.FindControl<Grid>("WelcomeStep"),
+            _ => null
+        };
+
+        if (currentStepControl == null || nextStepControl == null)
+        {
+            _isTransitioning = false;
+            return;
+        }
+
+        await AnimateOpacityAsync(currentStepControl, 1, 0, AnimationDurationMs);
+        currentStepControl.IsVisible = false;
+
+        nextStepControl.IsVisible = true;
+        nextStepControl.Opacity = 0;
+        await AnimateOpacityAsync(nextStepControl, 0, 1, AnimationDurationMs);
+
+        _currentStep = step;
+        _isTransitioning = false;
+    }
+
     private async Task PlayExitAnimationAsync()
     {
-        try
+        var contentGrid = this.FindControl<Grid>("ContentGrid");
+        if (contentGrid != null)
         {
-            var contentGrid = this.FindControl<Grid>("ContentGrid");
-            if (contentGrid is null)
-            {
-                await Task.Delay(200);
-                return;
-            }
-
-            var fadeOutAnimation = new Animation
-            {
-                Duration = TimeSpan.FromMilliseconds(200),
-                Easing = new CubicEaseIn(),
-                Children =
-                {
-                    new KeyFrame
-                    {
-                        Setters = { new Setter(OpacityProperty, 1.0) },
-                        KeyTime = TimeSpan.FromMilliseconds(0)
-                    },
-                    new KeyFrame
-                    {
-                        Setters = { new Setter(OpacityProperty, 0.0) },
-                        KeyTime = TimeSpan.FromMilliseconds(200)
-                    }
-                }
-            };
-
-            await fadeOutAnimation.RunAsync(contentGrid);
-            Console.WriteLine("[OobeWindow] Exit animation completed");
-        }
-        catch (Exception ex)
-        {
-            Console.Error.WriteLine($"[OobeWindow] Error playing exit animation: {ex.Message}");
+            await AnimateOpacityAsync(contentGrid, 1, 0, AnimationDurationMs);
         }
     }
 
-    private double ResolveEntranceOffset()
+    private static async Task AnimateOpacityAsync(Control element, double from, double to, int durationMs)
     {
-        var boundsHeight = Bounds.Height > 0 ? Bounds.Height : Height;
-        var scaledOffset = boundsHeight * 0.05;
-        return Math.Clamp(scaledOffset, 20, 48);
+        var steps = 20;
+        var delay = durationMs / steps;
+
+        for (int i = 0; i <= steps; i++)
+        {
+            var progress = (double)i / steps;
+            var eased = EaseOutCubic(progress);
+            element.Opacity = from + (to - from) * eased;
+            await Task.Delay(delay);
+        }
+    }
+
+    private static double EaseOutCubic(double t) => 1 - Math.Pow(1 - t, 3);
+    private static double EaseOutQuad(double t) => 1 - Math.Pow(1 - t, 2);
+    private static double EaseOutBack(double t)
+    {
+        const double c1 = 1.70158;
+        const double c3 = c1 + 1;
+        var t1 = t - 1;
+        return 1 + c3 * Math.Pow(t1, 3) + c1 * Math.Pow(t1, 2);
     }
 }
+
+// 枚举定义（使用 Services 命名空间中的 ThemeMode）
+public enum MonetSource
+{
+    Wallpaper,
+    Custom,
+    Disabled
+}

LanMountainDesktop/App.axaml.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Globalization;
 using System.Linq;
@@ -150,6 +150,37 @@ public partial class App : Application
 
         _settingsFacade.Settings.Changed += OnSettingsChanged;
         _appearanceThemeService.Changed += OnAppearanceThemeChanged;
+
+        // 监听系统主题变化
+        PropertyChanged += OnAppPropertyChanged;
+    }
+
+    private void OnAppPropertyChanged(object? sender, AvaloniaPropertyChangedEventArgs e)
+    {
+        if (e.Property == ActualThemeVariantProperty)
+        {
+            // 系统主题变化时，检查是否需要更新
+            var themeMode = _settingsFacade.Settings.LoadSnapshot<AppSettingsSnapshot>(SettingsScope.App).ThemeMode;
+            if (string.Equals(themeMode, ThemeAppearanceValues.ThemeModeFollowSystem, StringComparison.OrdinalIgnoreCase))
+            {
+                var newThemeVariant = (ThemeVariant?)e.NewValue;
+                var isDark = newThemeVariant == ThemeVariant.Dark;
+
+                // 同步到设置
+                var currentThemeState = _settingsFacade.Theme.Get();
+                if (currentThemeState.IsNightMode != isDark)
+                {
+                    _settingsFacade.Theme.Save(currentThemeState with { IsNightMode = isDark });
+                }
+
+                // 应用主题
+                Dispatcher.UIThread.Post(() =>
+                {
+                    ApplyThemeFromSettings();
+                    RefreshTrayIconContent();
+                }, DispatcherPriority.Background);
+            }
+        }
     }
 
     public override void Initialize()
@@ -762,9 +793,30 @@ public partial class App : Application
     private void ApplyThemeFromSettings()
     {
         var snapshot = _appearanceThemeService.GetCurrent();
-        RequestedThemeVariant = snapshot.IsNightMode
-            ? ThemeVariant.Dark
-            : ThemeVariant.Light;
+        var themeMode = _settingsFacade.Settings.LoadSnapshot<AppSettingsSnapshot>(SettingsScope.App).ThemeMode;
+
+        // 处理跟随系统主题模式
+        if (string.Equals(themeMode, ThemeAppearanceValues.ThemeModeFollowSystem, StringComparison.OrdinalIgnoreCase))
+        {
+            // 使用 Avalonia 的系统主题检测
+            var systemTheme = ActualThemeVariant;
+            RequestedThemeVariant = systemTheme;
+
+            // 同步 IsNightMode 到设置
+            var isSystemDark = systemTheme == ThemeVariant.Dark;
+            var currentThemeState = _settingsFacade.Theme.Get();
+            if (currentThemeState.IsNightMode != isSystemDark)
+            {
+                _settingsFacade.Theme.Save(currentThemeState with { IsNightMode = isSystemDark });
+            }
+        }
+        else
+        {
+            RequestedThemeVariant = snapshot.IsNightMode
+                ? ThemeVariant.Dark
+                : ThemeVariant.Light;
+        }
+
         ApplyAdaptiveThemeResources();
     }
 
@@ -1054,6 +1106,7 @@ public partial class App : Application
             var themeChanged =
                 refreshAll ||
                 changedKeys.Contains(nameof(AppSettingsSnapshot.IsNightMode), StringComparer.OrdinalIgnoreCase) ||
+                changedKeys.Contains(nameof(AppSettingsSnapshot.ThemeMode), StringComparer.OrdinalIgnoreCase) ||
                 changedKeys.Contains(nameof(AppSettingsSnapshot.UseSystemChrome), StringComparer.OrdinalIgnoreCase) ||
                 changedKeys.Contains(nameof(AppSettingsSnapshot.CornerRadiusStyle), StringComparer.OrdinalIgnoreCase) ||
                 (string.Equals(liveAppearance.ThemeColorMode, ThemeAppearanceValues.ColorModeSeedMonet, StringComparison.OrdinalIgnoreCase) &&

LanMountainDesktop/Localization/en-US.json

@@ -349,6 +349,11 @@
     "settings.appearance.title":  "Appearance",
     "settings.appearance.description":  "Adjust theme source, system material, and window chrome.",
     "settings.appearance.theme_header":  "Theme",
+    "settings.appearance.theme_mode_label":  "Theme mode",
+    "settings.appearance.theme_mode_desc":  "Choose light, dark, or follow system theme.",
+    "settings.appearance.theme_mode.light":  "Light",
+    "settings.appearance.theme_mode.dark":  "Dark",
+    "settings.appearance.theme_mode.follow_system":  "Follow system",
     "settings.color.enable_night_mode_toggle":  "Enable night mode",
     "settings.color.use_system_chrome_toggle":  "Use system window chrome",
     "settings.color.theme_color_label":  "Theme accent color",

LanMountainDesktop/Localization/ja-JP.json

@@ -292,6 +292,11 @@
     "settings.appearance.title":  "外観",
     "settings.appearance.description":  "テーマソース、システムマテリアル、ウィンドウクロームを調整します。",
     "settings.appearance.theme_header":  "テーマ",
+    "settings.appearance.theme_mode_label":  "テーマモード",
+    "settings.appearance.theme_mode_desc":  "ライト、ダーク、またはシステムに従うを選択してください。",
+    "settings.appearance.theme_mode.light":  "ライト",
+    "settings.appearance.theme_mode.dark":  "ダーク",
+    "settings.appearance.theme_mode.follow_system":  "システムに従う",
     "settings.color.enable_night_mode_toggle":  "夜モードを有効にする",
     "settings.color.use_system_chrome_toggle":  "システムのウィンドウクロームを使用",
     "settings.color.theme_color_label":  "テーマのアクセントカラー",

LanMountainDesktop/Localization/ko-KR.json

@@ -338,6 +338,11 @@
     "settings.appearance.title":  "외관",
     "settings.appearance.description":  "테마 소스, 시스템 소재 및 창 외관을 조정합니다.",
     "settings.appearance.theme_header":  "테마",
+    "settings.appearance.theme_mode_label":  "테마 모드",
+    "settings.appearance.theme_mode_desc":  "라이트, 다크 또는 시스템 설정 따르기를 선택하세요.",
+    "settings.appearance.theme_mode.light":  "라이트",
+    "settings.appearance.theme_mode.dark":  "다크",
+    "settings.appearance.theme_mode.follow_system":  "시스템 설정 따르기",
     "settings.color.enable_night_mode_toggle":  "야간 모드 활성화",
     "settings.color.use_system_chrome_toggle":  "시스템 창 제목 표시줄 사용",
     "settings.color.theme_color_label":  "테마 강조 색상",

LanMountainDesktop/Localization/zh-CN.json

@@ -344,6 +344,11 @@
     "settings.appearance.title":  "外观",
     "settings.appearance.description":  "调整主题来源、系统材质与窗口外观。",
     "settings.appearance.theme_header":  "主题",
+    "settings.appearance.theme_mode_label":  "主题模式",
+    "settings.appearance.theme_mode_desc":  "选择日间、夜间或跟随系统主题。",
+    "settings.appearance.theme_mode.light":  "日间",
+    "settings.appearance.theme_mode.dark":  "夜间",
+    "settings.appearance.theme_mode.follow_system":  "跟随系统",
     "settings.color.enable_night_mode_toggle":  "启用夜间模式",
     "settings.color.use_system_chrome_toggle":  "使用系统窗口标题栏",
     "settings.color.theme_color_label":  "主题强调色",

LanMountainDesktop/Models/AppSettingsSnapshot.cs

@@ -27,6 +27,8 @@ public sealed class AppSettingsSnapshot
 
     public string? SelectedWallpaperSeed { get; set; }
 
+    public string ThemeMode { get; set; } = "light";
+
     public string? WallpaperPath { get; set; }
 
     public string WallpaperType { get; set; } = "Image";

LanMountainDesktop/Services/Settings/SettingsContracts.cs

@@ -33,7 +33,8 @@ public sealed record ThemeAppearanceSettingsState(
     string CornerRadiusStyle = GlobalAppearanceSettings.DefaultCornerRadiusStyle,
     string ThemeColorMode = ThemeAppearanceValues.ColorModeDefaultNeutral,
     string SystemMaterialMode = ThemeAppearanceValues.MaterialNone,
-    string? SelectedWallpaperSeed = null);
+    string? SelectedWallpaperSeed = null,
+    string ThemeMode = ThemeAppearanceValues.ThemeModeLight);
 public sealed record StatusBarSettingsState(
     IReadOnlyList<string> TopStatusComponentIds,
     IReadOnlyList<string> PinnedTaskbarActions,

LanMountainDesktop/Services/Settings/SettingsDomainServices.cs

@@ -266,7 +266,21 @@ internal sealed class ThemeAppearanceService : IThemeAppearanceService
             cornerRadiusStyle,
             ThemeAppearanceValues.NormalizeThemeColorMode(snapshot.ThemeColorMode, snapshot.ThemeColor),
             ThemeAppearanceValues.NormalizeSystemMaterialMode(snapshot.SystemMaterialMode),
-            snapshot.SelectedWallpaperSeed);
+            snapshot.SelectedWallpaperSeed,
+            NormalizeThemeMode(snapshot.ThemeMode));
+    }
+
+    private static string NormalizeThemeMode(string? value)
+    {
+        if (string.Equals(value, ThemeAppearanceValues.ThemeModeDark, StringComparison.OrdinalIgnoreCase))
+        {
+            return ThemeAppearanceValues.ThemeModeDark;
+        }
+        if (string.Equals(value, ThemeAppearanceValues.ThemeModeFollowSystem, StringComparison.OrdinalIgnoreCase))
+        {
+            return ThemeAppearanceValues.ThemeModeFollowSystem;
+        }
+        return ThemeAppearanceValues.ThemeModeLight;
     }
 
     public void Save(ThemeAppearanceSettingsState state)
@@ -323,6 +337,13 @@ internal sealed class ThemeAppearanceService : IThemeAppearanceService
             changedKeys.Add(nameof(AppSettingsSnapshot.SelectedWallpaperSeed));
         }
 
+        var normalizedThemeMode = NormalizeThemeMode(state.ThemeMode);
+        if (!string.Equals(snapshot.ThemeMode, normalizedThemeMode, StringComparison.OrdinalIgnoreCase))
+        {
+            snapshot.ThemeMode = normalizedThemeMode;
+            changedKeys.Add(nameof(AppSettingsSnapshot.ThemeMode));
+        }
+
         if (changedKeys.Count == 0)
         {
             return;

LanMountainDesktop/Services/ThemeAppearanceValues.cs

@@ -13,6 +13,10 @@ public static class ThemeAppearanceValues
     public const string ColorSchemeFollowSystem = "follow_system";
     public const string ColorSchemeNative = "native";
 
+    public const string ThemeModeLight = "light";
+    public const string ThemeModeDark = "dark";
+    public const string ThemeModeFollowSystem = "follow_system";
+
     public const string MaterialNone = "none";
     public const string MaterialMica = "mica";
     public const string MaterialAcrylic = "acrylic";

LanMountainDesktop/TrimmerRoots.xml

@@ -1,35 +0,0 @@
-<linker>
-  <!-- Avalonia and UI framework assemblies that should not be trimmed -->
-  <assembly fullname="Avalonia" preserve="all" />
-  <assembly fullname="Avalonia.Controls" preserve="all" />
-  <assembly fullname="Avalonia.Core" preserve="all" />
-  <assembly fullname="Avalonia.Dialogs" preserve="all" />
-  <assembly fullname="Avalonia.Desktop" preserve="all" />
-  <assembly fullname="Avalonia.Themes.Fluent" preserve="all" />
-  <assembly fullname="Avalonia.Fonts.Inter" preserve="all" />
-  
-  <!-- FluentUI packages -->
-  <assembly fullname="FluentAvaloniaUI" preserve="all" />
-  <assembly fullname="FluentIcons.Avalonia" preserve="all" />
-  <assembly fullname="FluentIcons.Avalonia.Fluent" preserve="all" />
-  
-  <!-- Media and rendering -->
-  <assembly fullname="LibVLCSharp" preserve="all" />
-  <assembly fullname="LibVLCSharp.Avalonia" preserve="all" />
-  <assembly fullname="WebView.Avalonia" preserve="all" />
-  <assembly fullname="WebView.Avalonia.Desktop" preserve="all" />
-  
-  <!-- MVVM and utilities -->
-  <assembly fullname="CommunityToolkit.Mvvm" preserve="all" />
-  <assembly fullname="YamlDotNet" preserve="all" />
-  <assembly fullname="DotNetCampus.AvaloniaInkCanvas" preserve="all" />
-  <assembly fullname="PortAudioSharp2" preserve="all" />
-  
-  <!-- System assemblies with reflection usage -->
-  <assembly fullname="System.Drawing.Common" preserve="all" />
-  <assembly fullname="System.Runtime.WindowsRuntime" preserve="all" />
-  <assembly fullname="System.ComponentModel.TypeConverter" preserve="all" />
-  <assembly fullname="System.Reflection" preserve="all" />
-  <assembly fullname="System.Reflection.Emit" preserve="all" />
-  <assembly fullname="System.Reflection.Emit.Lightweight" preserve="all" />
-</linker>

LanMountainDesktop/ViewModels/SettingsViewModels.cs

@@ -1,10 +1,13 @@
 using System;
 using System.Collections.Generic;
 using System.Collections.ObjectModel;
+using System.ComponentModel;
 using System.Globalization;
 using System.Linq;
 using System.Threading.Tasks;
+using Avalonia;
 using Avalonia.Media;
+using Avalonia.Styling;
 using CommunityToolkit.Mvvm.ComponentModel;
 using CommunityToolkit.Mvvm.Input;
 using LanMountainDesktop.ComponentSystem;
@@ -576,10 +579,36 @@ public sealed partial class AppearanceSettingsPageViewModel : ViewModelBase
         _languageCode = _localizationService.NormalizeLanguageCode(_settingsFacade.Region.Get().LanguageCode);
         RefreshLocalizedText();
         ThemeColorModes = CreateThemeColorModes();
+        ThemeModeOptions = CreateThemeModeOptions();
 
         _isInitializing = true;
         Load();
         _isInitializing = false;
+
+    }
+
+    partial void OnSelectedThemeModeChanged(SelectionOption value)
+    {
+        if (_isInitializing || value is null)
+        {
+            return;
+        }
+
+        // 根据选择的主题模式更新夜间模式状态
+        var newIsNightMode = value.Value switch
+        {
+            ThemeAppearanceValues.ThemeModeDark => true,
+            ThemeAppearanceValues.ThemeModeLight => false,
+            ThemeAppearanceValues.ThemeModeFollowSystem => Application.Current?.ActualThemeVariant == ThemeVariant.Dark,
+            _ => IsNightMode
+        };
+
+        if (IsNightMode != newIsNightMode)
+        {
+            IsNightMode = newIsNightMode;
+        }
+
+        PersistCurrentState(restartRequired: false);
     }
 
     public event Action<string>? RestartRequested;
@@ -595,6 +624,27 @@ public sealed partial class AppearanceSettingsPageViewModel : ViewModelBase
     [ObservableProperty]
     private string _themeColor = string.Empty;
 
+    [ObservableProperty]
+    private IReadOnlyList<SelectionOption> _themeModeOptions = [];
+
+    [ObservableProperty]
+    private SelectionOption _selectedThemeMode = new(ThemeAppearanceValues.ThemeModeLight, "Light");
+
+    [ObservableProperty]
+    private string _themeModeLabel = string.Empty;
+
+    [ObservableProperty]
+    private string _themeModeDescription = string.Empty;
+
+    [ObservableProperty]
+    private string _themeModeLightText = string.Empty;
+
+    [ObservableProperty]
+    private string _themeModeDarkText = string.Empty;
+
+    [ObservableProperty]
+    private string _themeModeFollowSystemText = string.Empty;
+
     [ObservableProperty]
     private Color _customSeedPickerValue = DefaultSeedColor;
 
@@ -797,16 +847,6 @@ public sealed partial class AppearanceSettingsPageViewModel : ViewModelBase
         UpdatePreview(theme);
     }
 
-    partial void OnIsNightModeChanged(bool value)
-    {
-        if (_isInitializing)
-        {
-            return;
-        }
-
-        PersistCurrentState(restartRequired: false);
-    }
-
     partial void OnUseSystemChromeChanged(bool value)
     {
         if (_isInitializing)
@@ -887,7 +927,11 @@ public sealed partial class AppearanceSettingsPageViewModel : ViewModelBase
         PageTitle = L("settings.appearance.title", "Appearance");
         PageDescription = L("settings.appearance.description", "Adjust theme source, material background, and window chrome.");
         ThemeHeader = L("settings.appearance.theme_header", "Theme");
-        NightModeLabel = L("settings.color.enable_night_mode_toggle", "Enable night mode");
+        ThemeModeLabel = L("settings.appearance.theme_mode_label", "Theme mode");
+        ThemeModeDescription = L("settings.appearance.theme_mode_desc", "Choose light, dark, or follow system preference.");
+        ThemeModeLightText = L("settings.appearance.theme_mode.light", "Light");
+        ThemeModeDarkText = L("settings.appearance.theme_mode.dark", "Dark");
+        ThemeModeFollowSystemText = L("settings.appearance.theme_mode.follow_system", "Follow system");
         UseSystemChromeLabel = L("settings.color.use_system_chrome_toggle", "Use system window chrome");
         ThemeColorLabel = L("settings.color.theme_color_label", "Theme Accent Color");
         ThemeColorModeLabel = L("settings.appearance.theme_color_mode_label", "Theme color source");
@@ -957,6 +1001,26 @@ public sealed partial class AppearanceSettingsPageViewModel : ViewModelBase
         SelectedSystemMaterialMode = SystemMaterialModes.FirstOrDefault(option =>
             string.Equals(option.Value, savedSystemMaterialMode, StringComparison.OrdinalIgnoreCase))
             ?? SystemMaterialModes[0];
+
+        // 应用主题模式设置
+        var savedThemeMode = NormalizeThemeMode(theme.ThemeMode);
+        SelectedThemeMode = ThemeModeOptions.FirstOrDefault(option =>
+            string.Equals(option.Value, savedThemeMode, StringComparison.OrdinalIgnoreCase))
+            ?? ThemeModeOptions.FirstOrDefault(o => o.Value == ThemeAppearanceValues.ThemeModeLight)
+            ?? new SelectionOption(ThemeAppearanceValues.ThemeModeLight, ThemeModeLightText);
+    }
+
+    private static string NormalizeThemeMode(string? value)
+    {
+        if (string.Equals(value, ThemeAppearanceValues.ThemeModeDark, StringComparison.OrdinalIgnoreCase))
+        {
+            return ThemeAppearanceValues.ThemeModeDark;
+        }
+        if (string.Equals(value, ThemeAppearanceValues.ThemeModeFollowSystem, StringComparison.OrdinalIgnoreCase))
+        {
+            return ThemeAppearanceValues.ThemeModeFollowSystem;
+        }
+        return ThemeAppearanceValues.ThemeModeLight;
     }
 
     private void PersistCurrentState(bool restartRequired)
@@ -984,6 +1048,16 @@ public sealed partial class AppearanceSettingsPageViewModel : ViewModelBase
         }
     }
 
+    private IReadOnlyList<SelectionOption> CreateThemeModeOptions()
+    {
+        return
+        [
+            new SelectionOption(ThemeAppearanceValues.ThemeModeLight, ThemeModeLightText),
+            new SelectionOption(ThemeAppearanceValues.ThemeModeDark, ThemeModeDarkText),
+            new SelectionOption(ThemeAppearanceValues.ThemeModeFollowSystem, ThemeModeFollowSystemText)
+        ];
+    }
+
     private ThemeAppearanceSettingsState BuildPendingState(bool usePickerSeed)
     {
         var themeColorMode = ThemeAppearanceValues.NormalizeThemeColorMode(SelectedThemeColorMode?.Value, ThemeColor);
@@ -998,7 +1072,8 @@ public sealed partial class AppearanceSettingsPageViewModel : ViewModelBase
             GlobalAppearanceSettings.NormalizeCornerRadiusStyle(CornerRadiusStyle),
             themeColorMode,
             ThemeAppearanceValues.NormalizeSystemMaterialMode(SelectedSystemMaterialMode?.Value),
-            _selectedWallpaperSeed);
+            _selectedWallpaperSeed,
+            SelectedThemeMode?.Value ?? ThemeAppearanceValues.ThemeModeLight);
     }
 
     private void UpdatePreview(ThemeAppearanceSettingsState pendingState)

LanMountainDesktop/Views/SettingsPages/AppearanceSettingsPage.axaml

@@ -13,12 +13,21 @@
                                Text="{Binding ThemeHeader}"
                                Margin="0,0,0,4" />
 
-            <ui:SettingsExpander Header="{Binding NightModeLabel}">
+            <ui:SettingsExpander Header="{Binding ThemeModeLabel}"
+                                 Description="{Binding ThemeModeDescription}">
                 <ui:SettingsExpander.IconSource>
                     <fi:SymbolIconSource Symbol="WeatherMoon" />
                 </ui:SettingsExpander.IconSource>
                 <ui:SettingsExpander.Footer>
-                    <ToggleSwitch IsChecked="{Binding IsNightMode}" />
+                    <ComboBox Width="200"
+                              ItemsSource="{Binding ThemeModeOptions}"
+                              SelectedItem="{Binding SelectedThemeMode}">
+                        <ComboBox.ItemTemplate>
+                            <DataTemplate x:DataType="vm:SelectionOption">
+                                <TextBlock Text="{Binding Label}" />
+                            </DataTemplate>
+                        </ComboBox.ItemTemplate>
+                    </ComboBox>
                 </ui:SettingsExpander.Footer>
             </ui:SettingsExpander>