diff --git a/README.md b/README.md
index 5d2b9d9..bc7616e 100644
--- a/README.md
+++ b/README.md
@@ -1,26 +1,47 @@
-# desktop
+# LanMontainDesktop
 
-An Electron application with React and TypeScript
+一个使用 Electron 打包的桌面应用：前端采用 Vue 3（Renderer），主进程内置 Elysia.js 作为本地后端服务（Main）。
 
-## Recommended IDE Setup
+## 技术栈
 
-- [VSCode](https://code.visualstudio.com/) + [ESLint](https://marketplace.visualstudio.com/items?itemName=dbaeumer.vscode-eslint) + [Prettier](https://marketplace.visualstudio.com/items?itemName=esbenp.prettier-vscode)
+- Electron + electron-vite（主进程/构建/开发）
+- Vue 3 + Vite + TypeScript（渲染进程 UI）
+- Elysia.js + @elysiajs/node（主进程内的本地后端 API）
 
-## Project Setup
+## 架构说明
 
-### Install
+这个项目不是传统意义上“浏览器前端 + 远程后端”的部署形态，而是：
+
+- 主进程（Electron Main）负责创建窗口，并启动 Elysia.js（HTTP Server 绑定到 127.0.0.1 的随机端口）。
+- 预加载（Preload）通过 `ipcRenderer.invoke('eiysia:request', ...)` 把“类 HTTP 请求”转发到主进程里的 Elysia 路由。
+- 渲染进程（Vue 3 Renderer）通过 `window.api.call({ method, path, body })` 调用后端接口（例如 `/apps/list`、`/apps/launch`、`/open/external`）。
+
+## 目录结构（关键）
+
+- `src/main/`：Electron 主进程入口（创建窗口、启动 Elysia 服务）
+- `src/preload/`：Preload 桥接层（暴露 `window.api`）
+- `src/renderer/`：Vue 3 渲染进程（UI 与交互）
+- `src/eiysia/`：Elysia.js “后端”路由与启动逻辑
+
+## 推荐 IDE
+
+- VSCode + Volar（Vue Language Features）+ ESLint + Prettier
+
+## 开发与构建
+
+### 安装
 
 ```bash
 $ pnpm install
 ```
 
-### Development
+### 开发
 
 ```bash
 $ pnpm dev
 ```
 
-### Build
+### 构建
 
 ```bash
 # For windows
diff --git a/src/renderer/src/App.vue b/src/renderer/src/App.vue
index 1805da6..5d158ff 100644
--- a/src/renderer/src/App.vue
+++ b/src/renderer/src/App.vue
@@ -20,7 +20,8 @@
                   class="deskTile touchButton"
                   :class="[
                     tile.variant ? `deskTile--${tile.variant}` : '',
-                    tile.id === 'writingPanel' ? 'deskTile--panel' : ''
+                    (tile.id === 'writingPanel' || tile.id === 'notesPanel') ? 'deskTile--panel' : '',
+                    tile.id === 'notesPanel' ? 'deskTile--notes' : ''
                   ]"
                   :style="{
                     gridColumn: `${tile.col} / span ${tile.colSpan}`,
@@ -54,6 +55,21 @@
                       </button>
                     </div>
                   </template>
+                  <template v-else-if="tile.id === 'notesPanel'">
+                    <div class="notesWidget">
+                      <div class="notesHeader">
+                        <div class="notesHeaderTitle">作业版</div>
+                        <button class="notesAddButton touchButton" type="button" @pointerup="addNote">
+                          新建
+                        </button>
+                      </div>
+                      <div class="notesGrid">
+                        <div v-for="note in notes" :key="note.id" class="noteCard">
+                          <textarea v-model="note.text" class="noteTextarea" placeholder="写点什么..." />
+                        </div>
+                      </div>
+                    </div>
+                  </template>
                   <template v-else>
                     <div class="deskTileRow">
                       <svg
@@ -73,18 +89,6 @@
                 </component>
               </div>
             </div>
-
-            <div class="notesPanel">
-              <div class="notesHeader">
-                <div class="notesHeaderTitle">作业版</div>
-                <button class="notesAddButton touchButton" type="button" @pointerup="addNote">新建</button>
-              </div>
-              <div class="notesGrid">
-                <div v-for="note in notes" :key="note.id" class="noteCard">
-                  <textarea v-model="note.text" class="noteTextarea" placeholder="写点什么..." />
-                </div>
-              </div>
-            </div>
           </div>
         </div>
 
@@ -243,7 +247,7 @@
                       <path fill="currentColor" :d="iconPath(w.icon)" />
                     </svg>
                     <div class="homeWidgetCardTitle">{{ w.title }}</div>
-                    <div class="homeWidgetCardMeta">{{ w.size === '2x4' ? '2×4' : w.size === '4x2' ? '4×2' : '2×2' }}</div>
+                    <div class="homeWidgetCardMeta">{{ w.size }}</div>
                   </button>
                 </div>
               </div>
@@ -271,8 +275,8 @@
               <div class="settingsSection">
                 <div class="settingsSectionTitle">详细设置：{{ widgetTitle(homeEditSelectedId) }}</div>
                 <div class="settingsConfigArea">
-                  <template v-if="homeEditSelectedId === 'writingPanel'">
-                    <div v-for="a in writingActions" :key="a.id" class="settingsSubAction">
+                  <template v-if="homeEditSelectedId === 'writingPanel' || homeEditSelectedId === 'notesPanel'">
+                    <div v-if="homeEditSelectedId === 'writingPanel'" v-for="a in writingActions" :key="a.id" class="settingsSubAction">
                       <div class="settingsSubActionTitle">{{ a.label }}</div>
                       <select
                         class="settingsSelect touchButton"
@@ -293,6 +297,9 @@
                         清空
                       </button>
                     </div>
+                    <div v-else class="settingsSingleActionRow">
+                      <div class="settingsActionHint">作业版目前不支持自定义点击行为。</div>
+                    </div>
                   </template>
                   <template v-else>
                     <div class="settingsSingleActionRow">
@@ -392,7 +399,7 @@ const notes = ref<Note[]>([])
 
 type ActionKind = 'app' | 'url'
 type ActionConfig = { kind: ActionKind; target: string }
-type WidgetSize = '2x2' | '4x2' | '2x4'
+type WidgetSize = '1x1' | '2x1' | '1x2' | '2x2' | '4x2' | '2x4' | '4x4' | '8x4'
 type TileIcon = 'pen' | 'folder' | 'camera' | 'globe' | 'apps' | 'note' | 'doc' | 'comment'
 type DesktopTile = {
   id: string
@@ -456,19 +463,20 @@ let pageSwipeStartMainPage: MainPage = 'home'
 let suppressTapUntil = 0
 
 const availableWidgets: DesktopTile[] = [
-  { id: 'writingPanel', title: '书写', size: '2x4', icon: 'pen', clickable: false, variant: 'soft' },
+  { id: 'writingPanel', title: '书写', size: '2x4', icon: 'pen', clickable: false, variant: 'accent' },
+  { id: 'notesPanel', title: '作业版', size: '4x4', icon: 'note', clickable: false, variant: 'soft' },
   {
     id: 'whiteboard',
-    title: '白板书写',
+    title: '白板',
     size: '2x2',
-    icon: 'pen',
+    icon: 'doc',
     clickable: true,
     onActivate: () => void activateAction('whiteboard'),
     variant: 'soft'
   },
   {
     id: 'fileManager',
-    title: '文件管理',
+    title: '文件',
     size: '2x2',
     icon: 'folder',
     clickable: true,
@@ -476,7 +484,7 @@ const availableWidgets: DesktopTile[] = [
   },
   {
     id: 'visualPresenter',
-    title: '视频展台',
+    title: '展台',
     size: '2x2',
     icon: 'camera',
     clickable: true,
@@ -492,18 +500,59 @@ const availableWidgets: DesktopTile[] = [
   },
   {
     id: 'moreApps',
-    title: '更多应用',
+    title: '全部应用',
     size: '2x2',
     icon: 'apps',
     clickable: true,
     onActivate: () => void activateAction('moreApps', () => void openApps()),
     variant: 'accent'
+  },
+  {
+    id: 'calculator',
+    title: '计算器',
+    size: '1x1',
+    icon: 'apps',
+    clickable: true,
+    onActivate: () => void activateAction('calculator')
+  },
+  {
+    id: 'calendar',
+    title: '日历',
+    size: '2x1',
+    icon: 'apps',
+    clickable: true,
+    onActivate: () => void activateAction('calendar')
+  },
+  {
+    id: 'timer',
+    title: '计时器',
+    size: '1x1',
+    icon: 'apps',
+    clickable: true,
+    onActivate: () => void activateAction('timer')
+  },
+  {
+    id: 'camera',
+    title: '相机',
+    size: '1x1',
+    icon: 'camera',
+    clickable: true,
+    onActivate: () => void activateAction('camera')
   }
 ]
 
-const widgetsOrder = ref<string[]>(['writingPanel', 'whiteboard', 'fileManager', 'visualPresenter', 'browser', 'moreApps'])
+const widgetsOrder = ref<string[]>([
+  'writingPanel',
+  'notesPanel',
+  'whiteboard',
+  'fileManager',
+  'visualPresenter',
+  'browser',
+  'moreApps'
+])
 const widgetsEnabled = ref<Record<string, boolean>>({
   writingPanel: true,
+  notesPanel: true,
   whiteboard: true,
   fileManager: true,
   visualPresenter: true,
@@ -536,13 +585,36 @@ const enabledWidgets = computed<DesktopTile[]>(() => {
 })
 
 const placedDesktopTiles = computed<PlacedDesktopTile[]>(() => {
-  const cols = 4
-  const rows = 4
+  const cols = 8
+  const rows = 5
   const occupied = Array.from({ length: rows }, () => Array.from({ length: cols }, () => false))
 
   const tryPlace = (tile: DesktopTile): PlacedDesktopTile | null => {
-    const rowSpan = tile.size === '2x4' ? 4 : 2
-    const colSpan = tile.size === '4x2' ? 4 : 2
+    let rowSpan = 1
+    let colSpan = 1
+    if (tile.size === '8x4') {
+      rowSpan = 4
+      colSpan = 8
+    } else if (tile.size === '4x4') {
+      rowSpan = 4
+      colSpan = 4
+    } else if (tile.size === '2x4') {
+      rowSpan = 4
+      colSpan = 2
+    } else if (tile.size === '4x2') {
+      rowSpan = 2
+      colSpan = 4
+    } else if (tile.size === '2x2') {
+      rowSpan = 2
+      colSpan = 2
+    } else if (tile.size === '2x1') {
+      rowSpan = 1
+      colSpan = 2
+    } else if (tile.size === '1x2') {
+      rowSpan = 2
+      colSpan = 1
+    }
+
     for (let r = 1; r <= rows - rowSpan + 1; r += 1) {
       for (let c = 1; c <= cols - colSpan + 1; c += 1) {
         let ok = true
@@ -579,7 +651,7 @@ const placedWidgetIds = computed(() => new Set(placedDesktopTiles.value.map((t)
 
 const settingsWidgets = computed(() => {
   return widgetsInOrder.value.map((w) => {
-    const sizeLabel = w.size === '2x4' ? '2×4' : w.size === '4x2' ? '4×2' : '2×2'
+    const sizeLabel = w.size
     const enabled = widgetsEnabled.value[w.id] !== false
     const visible = placedWidgetIds.value.has(w.id)
     return { id: w.id, title: w.title, sizeLabel, enabled, visible }
@@ -931,9 +1003,18 @@ const handlePagePointerCancel = (event: PointerEvent): void => {
 }
 
 const restoreDefaultWidgets = (): void => {
-  widgetsOrder.value = ['writingPanel', 'whiteboard', 'fileManager', 'visualPresenter', 'browser', 'moreApps']
+  widgetsOrder.value = [
+    'writingPanel',
+    'notesPanel',
+    'whiteboard',
+    'fileManager',
+    'visualPresenter',
+    'browser',
+    'moreApps'
+  ]
   widgetsEnabled.value = {
     writingPanel: true,
+    notesPanel: true,
     whiteboard: true,
     fileManager: true,
     visualPresenter: true,
diff --git a/src/renderer/src/assets/main.css b/src/renderer/src/assets/main.css
index 20bd0e0..838bc35 100644
--- a/src/renderer/src/assets/main.css
+++ b/src/renderer/src/assets/main.css
@@ -55,19 +55,7 @@ body {
   -webkit-tap-highlight-color: transparent;
 }
 
-.launcher {
-  position: fixed;
-  left: 16px;
-  top: 84px;
-  width: 520px;
-  height: calc(100vh - 168px);
-  padding: 12px;
-  background: rgba(0, 0, 0, 0.28);
-  border: 1px solid rgba(255, 255, 255, 0.12);
-  border-radius: 14px;
-  backdrop-filter: blur(12px);
-  box-sizing: border-box;
-}
+/* 移除旧的 .notesPanel 和 .launcher 相关样式，它们已不再使用 */
 
 .home {
   position: fixed;
@@ -81,20 +69,21 @@ body {
 }
 
 .desktopGridShell {
-  position: fixed;
+  position: absolute;
   left: 16px;
+  right: 16px;
   top: 88px;
   bottom: 96px;
-  right: calc(50vw + 8px);
   display: block;
   box-sizing: border-box;
 }
 
 .desktopGrid {
   display: grid;
-  grid-template-columns: repeat(4, minmax(160px, 1fr));
-  grid-template-rows: repeat(4, minmax(120px, 1fr));
+  grid-template-columns: repeat(8, minmax(100px, 1fr));
+  grid-template-rows: repeat(5, minmax(100px, 1fr));
   gap: 12px;
+  height: 100%;
   box-sizing: border-box;
 }
 
@@ -104,7 +93,7 @@ body {
   border: 1px solid rgba(255, 255, 255, 0.12);
   background: rgba(0, 0, 0, 0.25);
   color: var(--ev-c-text-1);
-  padding: 14px;
+  padding: 12px;
   box-sizing: border-box;
   display: flex;
   flex-direction: column;
@@ -112,6 +101,50 @@ body {
   align-items: flex-start;
   text-align: left;
   overflow: hidden;
+  position: relative;
+}
+
+.deskTile--notes {
+  padding: 0;
+}
+
+.notesWidget {
+  width: 100%;
+  height: 100%;
+  display: grid;
+  grid-template-rows: 48px 1fr;
+  overflow: hidden;
+}
+
+.notesWidget .notesHeader {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 0 12px;
+  background: rgba(255, 255, 255, 0.05);
+  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
+}
+
+.notesWidget .notesHeaderTitle {
+  font-size: 16px;
+  font-weight: 800;
+}
+
+.notesWidget .notesAddButton {
+  height: 32px;
+  padding: 0 12px;
+  font-size: 14px;
+}
+
+.notesWidget .notesGrid {
+  padding: 10px;
+  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
+  grid-auto-rows: 140px;
+  gap: 10px;
+}
+
+.notesWidget .noteCard {
+  background: rgba(255, 255, 255, 0.04);
 }
 
 button.deskTile {
@@ -143,22 +176,75 @@ button.deskTile {
 
 .deskTileRow {
   width: 100%;
+  height: 100%;
   display: flex;
+  flex-direction: column;
   align-items: center;
-  gap: 12px;
+  justify-content: center;
+  gap: 6px;
+  padding: 8px;
+  box-sizing: border-box;
 }
 
 .deskTileIcon {
-  width: 34px;
-  height: 34px;
+  width: 28px;
+  height: 28px;
   flex: 0 0 auto;
   opacity: 0.95;
+  transition: transform 0.2s ease;
+}
+
+.deskTile:active .deskTileIcon {
+  transform: scale(0.9);
 }
 
 .deskTileText {
-  font-size: 20px;
-  line-height: 24px;
-  font-weight: 900;
+  font-size: 13px;
+  line-height: 1.2;
+  font-weight: 700;
+  text-align: center;
+  word-break: break-all;
+  display: -webkit-box;
+  -webkit-line-clamp: 2;
+  -webkit-box-orient: vertical;
+  overflow: hidden;
+  opacity: 0.9;
+}
+
+/* 针对较宽组件的特殊布局 (如 2x1, 4x2) */
+.deskTile[style*="span 2"] .deskTileRow,
+.deskTile[style*="span 4"] .deskTileRow,
+.deskTile[style*="span 8"] .deskTileRow {
+  flex-direction: row;
+  justify-content: flex-start;
+  padding: 0 16px;
+  gap: 14px;
+}
+
+.deskTile[style*="span 2"] .deskTileIcon,
+.deskTile[style*="span 4"] .deskTileIcon,
+.deskTile[style*="span 8"] .deskTileIcon {
+  width: 32px;
+  height: 32px;
+}
+
+.deskTile[style*="span 2"] .deskTileText,
+.deskTile[style*="span 4"] .deskTileText,
+.deskTile[style*="span 8"] .deskTileText {
+  font-size: 16px;
+  text-align: left;
+  -webkit-line-clamp: 1;
+}
+
+/* 针对较高组件的特殊布局 (如 1x2, 2x4) */
+.deskTile[style*="grid-row: span 2"] .deskTileRow,
+.deskTile[style*="grid-row: span 4"] .deskTileRow {
+  justify-content: center;
+}
+
+/* 针对 1x1 极小组件的微调 */
+.deskTile[style*="span 1 / span 1"] .deskTileText {
+  font-size: 12px;
 }
 
 .deskTile--panel {
@@ -176,8 +262,14 @@ button.deskTile {
 .writingPanelButtons {
   width: 100%;
   display: grid;
-  grid-template-columns: 1fr;
+  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
   gap: 10px;
+  overflow-y: auto;
+  scrollbar-width: none;
+}
+
+.writingPanelButtons::-webkit-scrollbar {
+  display: none;
 }
 
 .writingActionButton {
@@ -226,107 +318,77 @@ button.deskTile {
   background: rgba(0, 0, 0, 0.18);
 }
 
-.notesPanel {
-  position: fixed;
-  top: 88px;
-  right: 16px;
-  bottom: 96px;
-  left: calc(50vw + 8px);
-  background: rgba(0, 0, 0, 0.28);
-  border: 1px solid rgba(255, 255, 255, 0.12);
-  border-radius: 14px;
-  backdrop-filter: blur(12px);
-  box-sizing: border-box;
+/* 移除旧的绝对定位 notesPanel */
+/* .notesPanel {...} 已被集成到 grid 中的 .deskTile--notes */
+
+.notesWidget {
+  width: 100%;
+  height: 100%;
+  display: flex;
+  flex-direction: column;
   overflow: hidden;
-  display: grid;
-  grid-template-rows: 56px 1fr;
+  background: rgba(0, 0, 0, 0.1);
+  border-radius: 14px;
 }
 
-.notesHeader {
+.notesWidget .notesHeader {
+  flex: 0 0 48px;
   display: flex;
   align-items: center;
   justify-content: space-between;
-  padding: 0 14px;
-  font-size: 18px;
-  line-height: 22px;
-  font-weight: 800;
-  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
-  background: rgba(0, 0, 0, 0.2);
+  padding: 0 12px;
+  background: rgba(255, 255, 255, 0.05);
+  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
 }
 
-.notesHeaderTitle {
-  font-size: 18px;
-  line-height: 22px;
-  font-weight: 900;
-}
-
-.notesAddButton {
-  cursor: pointer;
-  border-radius: 14px;
-  padding: 0 14px;
-  border: 1px solid rgba(255, 255, 255, 0.12);
-  color: var(--ev-c-text-1);
-  background: rgba(0, 0, 0, 0.18);
+.notesWidget .notesHeaderTitle {
   font-size: 16px;
-  line-height: 18px;
   font-weight: 800;
-  height: 40px;
 }
 
-.notesAddButton:hover {
-  border-color: rgba(255, 255, 255, 0.22);
-  background: rgba(0, 0, 0, 0.32);
+.notesWidget .notesAddButton {
+  height: 32px;
+  padding: 0 12px;
+  font-size: 14px;
+  border-radius: 8px;
+  background: rgba(255, 255, 255, 0.1);
+  border: 1px solid rgba(255, 255, 255, 0.1);
+  color: white;
+  cursor: pointer;
 }
 
-.notesGrid {
-  height: 100%;
-  overflow: auto;
-  padding: 12px;
-  box-sizing: border-box;
+.notesWidget .notesGrid {
+  flex: 1;
+  padding: 10px;
   display: grid;
-  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
-  grid-auto-rows: 200px;
-  gap: 12px;
+  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
+  grid-auto-rows: 120px;
+  gap: 10px;
+  overflow-y: auto;
   scrollbar-width: none;
-  -ms-overflow-style: none;
 }
 
-.notesGrid::-webkit-scrollbar {
-  width: 0;
-  height: 0;
+.notesWidget .notesGrid::-webkit-scrollbar {
   display: none;
 }
 
-.noteCard {
-  border-radius: 14px;
-  border: 1px solid rgba(255, 255, 255, 0.12);
-  background: rgba(0, 0, 0, 0.22);
+.notesWidget .noteCard {
+  border-radius: 10px;
+  border: 1px solid rgba(255, 255, 255, 0.1);
+  background: rgba(255, 255, 255, 0.04);
   overflow: hidden;
-  box-sizing: border-box;
 }
 
-.noteTextarea {
+.notesWidget .noteTextarea {
   width: 100%;
   height: 100%;
-  resize: none;
-  border: none;
-  outline: none;
+  padding: 8px;
+  font-size: 14px;
   background: transparent;
-  color: var(--ev-c-text-1);
-  padding: 12px;
-  box-sizing: border-box;
-  font-size: 16px;
-  line-height: 22px;
-  font-weight: 700;
-  user-select: text;
-  scrollbar-width: none;
-  -ms-overflow-style: none;
-}
-
-.noteTextarea::-webkit-scrollbar {
-  width: 0;
-  height: 0;
-  display: none;
+  border: none;
+  color: white;
+  resize: none;
+  outline: none;
 }
 
 .openAppsButton {