diff --git a/image.png b/image.png
index 75e79ea..703ae6b 100644
Binary files a/image.png and b/image.png differ
diff --git a/src/router/index.js b/src/router/index.js
index 763c67d..f765bba 100644
--- a/src/router/index.js
+++ b/src/router/index.js
@@ -99,7 +99,7 @@ export const dynamicRoutes = [
     component: Layout,
     children: [
       {
-        path: 'index',
+        path: '',
         component: () => import('@/views/frontend/index'),
         name: 'Frontend',
         meta: { title: '数智 AI' }
diff --git a/src/store/modules/settings.js b/src/store/modules/settings.js
index da9accb..7ada1c0 100644
--- a/src/store/modules/settings.js
+++ b/src/store/modules/settings.js
@@ -29,7 +29,7 @@ const useSettingsStore = defineStore(
       footerVisible: storageSetting.footerVisible === undefined ? footerVisible : storageSetting.footerVisible,
       footerContent: footerContent,
       isDark: isDark.value,
-      frontendTheme: (typeof localStorage !== 'undefined' && localStorage.getItem('frontend-theme')) || 'dark'
+      frontendTheme: (typeof localStorage !== 'undefined' && localStorage.getItem('frontend-theme')) || 'light'
     }),
     actions: {
       // 修改布局设置
@@ -61,12 +61,15 @@ const useSettingsStore = defineStore(
         document.querySelectorAll('.frontend-container').forEach((el) => {
           el.setAttribute('data-theme', this.frontendTheme)
         })
+        // 同步到 body，供 Teleport 到 body 的元素（如右键菜单）继承 CSS 变量
+        document.body.setAttribute('data-fe-theme', this.frontendTheme)
       },
-      // 应用 frontend 主题到所有 .frontend-container（启动时调用）
+      // 应用 frontend 主题到所有 .frontend-container 和 body（启动时调用）
       applyFrontendTheme() {
         document.querySelectorAll('.frontend-container').forEach((el) => {
           el.setAttribute('data-theme', this.frontendTheme)
         })
+        document.body.setAttribute('data-fe-theme', this.frontendTheme)
       }
     }
   })
diff --git a/src/views/frontend/components/ConversationSidebar.vue b/src/views/frontend/components/ConversationSidebar.vue
index 00a29cc..867f343 100644
--- a/src/views/frontend/components/ConversationSidebar.vue
+++ b/src/views/frontend/components/ConversationSidebar.vue
@@ -7,55 +7,58 @@
 
     <transition name="sidebar-fade">
       <div v-if="!collapsed" class="sidebar-content">
-      <div class="sidebar-header">
-        <span>会话列表</span>
-        <div class="header-actions">
-          <el-tooltip content="新建会话" placement="top" :show-after="300">
-            <el-button class="icon-btn" link @click="handleNewSession">
-              <el-icon><Plus /></el-icon>
-            </el-button>
-          </el-tooltip>
-          <el-tooltip content="刷新" placement="top" :show-after="300">
-            <el-button class="icon-btn" link @click="fetchSessions" :loading="loading">
-              <el-icon><Refresh /></el-icon>
-            </el-button>
-          </el-tooltip>
-        </div>
-      </div>
-      <el-scrollbar class="sidebar-scrollbar">
-        <div v-if="loading && sessionList.length === 0" class="loading-tip">
-          加载中...
-        </div>
-        <div
-          v-for="session in sessionList"
-          :key="session.sessionId"
-          class="conversation-item"
-          :class="{ active: currentSession?.sessionId === session.sessionId, 'has-new-message': session.hasNewMessage }"
-          @click="selectSession(session)"
-          @contextmenu.prevent="handleRightClick($event, session)"
-        >
-          <div class="conv-dot"></div>
-          <div class="conv-info">
-            <span class="conv-name">{{ session.title || session.name }}</span>
-            <span class="conv-time">{{ formatTimeAgo(session.updateTime) }}</span>
+        <slot name="content">
+          <div class="sidebar-header">
+            <span>会话列表</span>
+            <div class="header-actions">
+              <el-tooltip content="新建会话" placement="top" :show-after="300">
+                <el-button class="icon-btn" link @click="handleNewSession">
+                  <el-icon><Plus /></el-icon>
+                </el-button>
+              </el-tooltip>
+              <el-tooltip content="刷新" placement="top" :show-after="300">
+                <el-button class="icon-btn" link @click="fetchSessions">
+                  <el-icon v-if="!loading"><Refresh /></el-icon>
+                  <el-icon v-else class="is-loading"><Loading /></el-icon>
+                </el-button>
+              </el-tooltip>
+            </div>
           </div>
-          <div v-if="session.hasNewMessage" class="new-message-dot"></div>
-        </div>
+          <el-scrollbar class="sidebar-scrollbar">
+            <div v-if="loading && sessionList.length === 0" class="loading-tip">
+              加载中...
+            </div>
+            <div
+              v-for="session in sessionList"
+              :key="session.sessionId"
+              class="conversation-item"
+              :class="{ active: currentSession?.sessionId === session.sessionId, 'has-new-message': session.hasNewMessage }"
+              @click="selectSession(session)"
+              @contextmenu.prevent="handleRightClick($event, session)"
+            >
+              <div class="conv-dot"></div>
+              <div class="conv-info">
+                <span class="conv-name">{{ session.title || session.name }}</span>
+                <span class="conv-time">{{ formatTimeAgo(session.updateTime) }}</span>
+              </div>
+              <div v-if="session.hasNewMessage" class="new-message-dot"></div>
+            </div>
 
-        <!-- 右键菜单 -->
-        <teleport to="body">
-          <div
-            v-if="contextMenuVisible"
-            class="context-menu"
-            :style="{ top: contextMenuTop + 'px', left: contextMenuLeft + 'px' }"
-            @click.stop
-          >
-            <div class="context-menu-item" @click="handleRename">重命名</div>
-            <div class="context-menu-item danger" @click="handleDeleteFromMenu">删除</div>
-          </div>
-        </teleport>
-        <div v-if="!loading && sessionList.length === 0" class="empty-sessions">暂无会话</div>
-      </el-scrollbar>
+            <!-- 右键菜单 -->
+            <teleport to="body">
+              <div
+                v-if="contextMenuVisible"
+                class="context-menu"
+                :style="{ top: contextMenuTop + 'px', left: contextMenuLeft + 'px' }"
+                @click.stop
+              >
+                <div class="context-menu-item" @click="handleRename">重命名</div>
+                <div class="context-menu-item danger" @click="handleDeleteFromMenu">删除</div>
+              </div>
+            </teleport>
+            <div v-if="!loading && sessionList.length === 0" class="empty-sessions">暂无会话</div>
+          </el-scrollbar>
+        </slot>
       </div>
     </transition>
 
@@ -66,7 +69,7 @@
 <script setup>
 import { ref, onMounted, onUnmounted } from 'vue'
 import { useRoute } from 'vue-router'
-import { DArrowLeft, DArrowRight, Refresh, Plus, Delete } from '@element-plus/icons-vue'
+import { DArrowLeft, DArrowRight, Refresh, Plus, Delete, Loading } from '@element-plus/icons-vue'
 import { listChatSessions, deleteChatSession, renameChatSession } from '@/api/frontend'
 import { formatTimeAgo } from '@/utils/time'
 import { ElMessage, ElMessageBox } from 'element-plus'
@@ -113,13 +116,20 @@ function handleRename() {
   ElMessageBox.prompt('请输入新名称', '重命名会话', {
     confirmButtonText: '确定',
     cancelButtonText: '取消',
-    inputValue: session.title || session.name || ''
+    inputValue: session.title || session.name || '',
+    customClass: 'frontend-el-message-box'
   }).then(async ({ value }) => {
     await renameChatSession(session.sessionId, value)
     ElMessage.success('重命名成功')
     // 更新本地列表
     session.title = value
   }).catch(() => {})
+
+  // ElMessageBox 没有 @opened 事件，等待挂载完成后选中已有文字
+  setTimeout(() => {
+    const input = document.querySelector('.frontend-el-message-box .el-message-box__input input')
+    if (input) input.select()
+  }, 100)
 }
 
 function handleDeleteFromMenu() {
@@ -142,6 +152,7 @@ function selectSession(session) {
 
 async function fetchSessions() {
   loading.value = true
+  const start = Date.now()
   try {
     const res = await listChatSessions(getCurrentAgentId())
     sessionList.value = res.data || []
@@ -153,6 +164,10 @@ async function fetchSessions() {
   } catch (error) {
     console.error('获取会话列表失败:', error)
   } finally {
+    // 强制最小 loading 时长，避免接口返回过快导致 icon 一闪而过
+    const elapsed = Date.now() - start
+    const remain = 300 - elapsed
+    if (remain > 0) await new Promise(resolve => setTimeout(resolve, remain))
     loading.value = false
     emit('ready')
   }
@@ -170,7 +185,8 @@ async function handleDeleteSession(session) {
       {
         confirmButtonText: '确定',
         cancelButtonText: '取消',
-        type: 'warning'
+        type: 'warning',
+        customClass: 'frontend-el-message-box'
       }
     )
     await deleteChatSession(session.workspacePath, session.sessionId)
@@ -230,12 +246,17 @@ defineExpose({
   // 只刷新会话列表，不选中任何会话（避免触发 handleConversationSelect）
   refreshQuiet: async () => {
     loading.value = true
+    const start = Date.now()
     try {
       const res = await listChatSessions(getCurrentAgentId())
       sessionList.value = res.data || []
     } catch (error) {
       console.error('获取会话列表失败:', error)
     } finally {
+      // 强制最小 loading 时长，避免 icon 一闪而过
+      const elapsed = Date.now() - start
+      const remain = 300 - elapsed
+      if (remain > 0) await new Promise(resolve => setTimeout(resolve, remain))
       loading.value = false
     }
   }
@@ -322,10 +343,20 @@ defineExpose({
           .el-icon {
             font-size: 16px;
           }
+
+          // 加载中图标旋转动画
+          .is-loading {
+            animation: sidebar-rotate 1s linear infinite;
+          }
         }
       }
     }
 
+    @keyframes sidebar-rotate {
+      from { transform: rotate(0deg); }
+      to { transform: rotate(360deg); }
+    }
+
     .sidebar-scrollbar {
       flex: 1;
       min-height: 0;
@@ -371,11 +402,15 @@ defineExpose({
       .conv-dot {
         width: 6px;
         height: 6px;
-        background: #4a9eff;
+        background: transparent;
         border-radius: 50%;
         flex-shrink: 0;
       }
 
+      &.active .conv-dot {
+        background: var(--fe-accent);
+      }
+
       .conv-info {
         flex: 1;
         display: flex;
@@ -428,32 +463,3 @@ defineExpose({
   opacity: 0;
 }
 </style>
-
-<style>
-.context-menu {
-  position: fixed;
-  background: var(--fe-bg-elevated);
-  border: 1px solid var(--fe-border);
-  border-radius: var(--fe-radius-sm);
-  box-shadow: var(--fe-shadow-md);
-  z-index: 9999;
-  padding: 4px 0;
-  min-width: 100px;
-  color: var(--fe-text-primary);
-
-  .context-menu-item {
-    padding: 8px 16px;
-    cursor: pointer;
-    font-size: 14px;
-    &:hover {
-      background: var(--fe-bg-hover);
-    }
-    &.danger {
-      color: var(--fe-danger);
-      &:hover {
-        background: var(--fe-danger-soft);
-      }
-    }
-  }
-}
-</style>
diff --git a/src/views/frontend/components/FilePanel.vue b/src/views/frontend/components/FilePanel.vue
index c46f97a..9418f8e 100644
--- a/src/views/frontend/components/FilePanel.vue
+++ b/src/views/frontend/components/FilePanel.vue
@@ -15,7 +15,8 @@
         </el-tooltip>
         <el-tooltip content="刷新" placement="top" :show-after="300">
           <el-button class="icon-btn" link @click="fetchFiles">
-            <el-icon><Refresh /></el-icon>
+            <el-icon v-if="!loading"><Refresh /></el-icon>
+            <el-icon v-else class="is-loading"><Loading /></el-icon>
           </el-button>
         </el-tooltip>
         <el-tooltip content="关闭" placement="top" :show-after="300">
@@ -27,7 +28,7 @@
     </div>
 
     <div class="panel-content" @contextmenu.prevent="handlePanelContextMenu">
-      <div v-if="loading" class="loading-wrapper">
+      <div v-if="loading && fileTree.length === 0" class="loading-wrapper">
         <el-icon class="loading-icon"><Loading /></el-icon>
       </div>
       <div v-else-if="fileTree.length === 0" class="empty-wrapper">
@@ -45,7 +46,7 @@
           <template #default="{ node, data }">
             <span class="tree-node" @contextmenu.stop.prevent="handleContextMenu($event, data)">
               <el-icon v-if="data.type === 'directory'"><Folder /></el-icon>
-              <el-icon v-else><Document /></el-icon>
+              <el-icon v-else :style="{ color: getFileIconInfo(data.name).color }"><component :is="getFileIconInfo(data.name).component" /></el-icon>
               <span class="node-label">{{ node.label }}</span>
               <el-icon
                 v-if="data.type === 'file'"
@@ -82,8 +83,8 @@
     </div>
 
     <!-- 新建文件/文件夹对话框 -->
-    <el-dialog v-model="createDialogVisible" :title="createDialogTitle" width="400px" :close-on-click-modal="false">
-      <el-input v-model="createName" placeholder="请输入名称" @keyup.enter="confirmCreate" />
+    <el-dialog v-model="createDialogVisible" :title="createDialogTitle" width="400px" :close-on-click-modal="false" @opened="handleCreateOpened">
+      <el-input ref="createInputRef" v-model="createName" placeholder="请输入名称" @keyup.enter="confirmCreate" />
       <template #footer>
         <el-button @click="createDialogVisible = false">取消</el-button>
         <el-button type="primary" @click="confirmCreate">确定</el-button>
@@ -91,8 +92,8 @@
     </el-dialog>
 
     <!-- 重命名对话框 -->
-    <el-dialog v-model="renameDialogVisible" title="重命名" width="400px" :close-on-click-modal="false">
-      <el-input v-model="renameName" placeholder="请输入新名称" @keyup.enter="confirmRename" />
+    <el-dialog v-model="renameDialogVisible" title="重命名" width="400px" :close-on-click-modal="false" @opened="handleRenameOpened">
+      <el-input ref="renameInputRef" v-model="renameName" placeholder="请输入新名称" @keyup.enter="confirmRename" />
       <template #footer>
         <el-button @click="renameDialogVisible = false">取消</el-button>
         <el-button type="primary" @click="confirmRename">确定</el-button>
@@ -150,11 +151,183 @@
 </template>
 
 <script setup>
-import { ref, computed, watch, onMounted, onUnmounted } from 'vue'
+import { ref, computed, watch, onMounted, onUnmounted, defineComponent, h } from 'vue'
 import { ElMessage } from 'element-plus'
 import { Close, Folder, FolderOpened, Document, Download, Refresh, Upload, Loading } from '@element-plus/icons-vue'
 import { listFiles, downloadFile, createFileOrDirectory, uploadFileOrDirectory, deleteFileOrDirectory, renameFile, downloadProject } from '@/api/frontend'
 
+// 类似 lucide-code-xml 的代码图标（Element Plus icons 没有原生 code icon）
+const CodeXmlIcon = defineComponent({
+  name: 'CodeXmlIcon',
+  render() {
+    return h('svg', {
+      xmlns: 'http://www.w3.org/2000/svg',
+      viewBox: '0 0 24 24',
+      fill: 'none',
+      stroke: 'currentColor',
+      'stroke-width': '1.75',
+      'stroke-linecap': 'round',
+      'stroke-linejoin': 'round',
+      style: 'width: 1em; height: 1em;'
+    }, [
+      h('path', { d: 'm18 16 4-4-4-4' }),
+      h('path', { d: 'm6 8-4 4 4 4' }),
+      h('path', { d: 'm14.5 4-5 16' })
+    ])
+  }
+})
+
+// 类似 lucide-terminal：> + 下划线
+const TerminalIcon = defineComponent({
+  name: 'TerminalIcon',
+  render() {
+    return h('svg', {
+      xmlns: 'http://www.w3.org/2000/svg',
+      viewBox: '0 0 24 24',
+      fill: 'none',
+      stroke: 'currentColor',
+      'stroke-width': '1.75',
+      'stroke-linecap': 'round',
+      'stroke-linejoin': 'round',
+      style: 'width: 1em; height: 1em;'
+    }, [
+      h('polyline', { points: '4 17 10 11 4 5' }),
+      h('line', { x1: '12', y1: '19', x2: '20', y2: '19' })
+    ])
+  }
+})
+
+// 类似 lucide-file-text：带三条横线的文件（用于 PDF）
+const FileTextIcon = defineComponent({
+  name: 'FileTextIcon',
+  render() {
+    return h('svg', {
+      xmlns: 'http://www.w3.org/2000/svg',
+      viewBox: '0 0 24 24',
+      fill: 'none',
+      stroke: 'currentColor',
+      'stroke-width': '1.75',
+      'stroke-linecap': 'round',
+      'stroke-linejoin': 'round',
+      style: 'width: 1em; height: 1em;'
+    }, [
+      h('path', { d: 'M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z' }),
+      h('path', { d: 'M14 2v4h6' }),
+      h('path', { d: 'M10 9H8' }),
+      h('path', { d: 'M16 13H8' }),
+      h('path', { d: 'M16 17H8' })
+    ])
+  }
+})
+
+// 类似 lucide-file-presentation：带三柱状条的文件（用于 PPT）
+const FilePresentationIcon = defineComponent({
+  name: 'FilePresentationIcon',
+  render() {
+    return h('svg', {
+      xmlns: 'http://www.w3.org/2000/svg',
+      viewBox: '0 0 24 24',
+      fill: 'none',
+      stroke: 'currentColor',
+      'stroke-width': '1.75',
+      'stroke-linecap': 'round',
+      'stroke-linejoin': 'round',
+      style: 'width: 1em; height: 1em;'
+    }, [
+      h('path', { d: 'M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z' }),
+      h('path', { d: 'M14 2v4h6' }),
+      h('path', { d: 'M8 18v-6' }),
+      h('path', { d: 'M12 18v-6' }),
+      h('path', { d: 'M16 18v-6' }),
+      h('path', { d: 'M8 18h8' })
+    ])
+  }
+})
+
+// 通用 SVG 属性（lucide 风格）
+const lucideSvgProps = {
+  xmlns: 'http://www.w3.org/2000/svg',
+  viewBox: '0 0 24 24',
+  fill: 'none',
+  stroke: 'currentColor',
+  'stroke-width': '1.75',
+  'stroke-linecap': 'round',
+  'stroke-linejoin': 'round',
+  style: 'width: 1em; height: 1em;'
+}
+
+function makeLucideIcon(name, paths) {
+  return defineComponent({
+    name,
+    render() {
+      return h('svg', lucideSvgProps, paths.map((p) => h(p.tag, p.attrs)))
+    }
+  })
+}
+
+// lucide-file-image：文件 + 圆 + 山形
+const FileImageIcon = makeLucideIcon('FileImageIcon', [
+  { tag: 'path', attrs: { d: 'M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z' } },
+  { tag: 'path', attrs: { d: 'M14 2v4h6' } },
+  { tag: 'circle', attrs: { cx: '9.5', cy: '13.5', r: '1.5' } },
+  { tag: 'path', attrs: { d: 'M16 16l-3-3-4 4' } }
+])
+
+// lucide-file-video：文件 + 三角形
+const FileVideoIcon = makeLucideIcon('FileVideoIcon', [
+  { tag: 'path', attrs: { d: 'M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z' } },
+  { tag: 'path', attrs: { d: 'M14 2v4h6' } },
+  { tag: 'path', attrs: { d: 'm10 11 5 3-5 3v-6Z' } }
+])
+
+// lucide-file-music：文件 + 音符
+const FileMusicIcon = makeLucideIcon('FileMusicIcon', [
+  { tag: 'path', attrs: { d: 'M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z' } },
+  { tag: 'path', attrs: { d: 'M14 2v4h6' } },
+  { tag: 'circle', attrs: { cx: '8', cy: '18', r: '2' } },
+  { tag: 'path', attrs: { d: 'M10 18V8l6-2v8' } }
+])
+
+// lucide-file-archive：文件 + 拉链
+const FileArchiveIcon = makeLucideIcon('FileArchiveIcon', [
+  { tag: 'path', attrs: { d: 'M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z' } },
+  { tag: 'path', attrs: { d: 'M14 2v4h6' } },
+  { tag: 'rect', attrs: { x: '10', y: '12', width: '4', height: '6', rx: '1' } }
+])
+
+// lucide-file-spreadsheet：文件 + 表格
+const FileSpreadsheetIcon = makeLucideIcon('FileSpreadsheetIcon', [
+  { tag: 'path', attrs: { d: 'M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z' } },
+  { tag: 'path', attrs: { d: 'M14 2v4h6' } },
+  { tag: 'path', attrs: { d: 'M8 13h2' } },
+  { tag: 'path', attrs: { d: 'M14 13h2' } },
+  { tag: 'path', attrs: { d: 'M8 17h2' } },
+  { tag: 'path', attrs: { d: 'M14 17h2' } }
+])
+
+// lucide-file-code：文件 + < >
+const FileCodeIcon = makeLucideIcon('FileCodeIcon', [
+  { tag: 'path', attrs: { d: 'M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z' } },
+  { tag: 'path', attrs: { d: 'M14 2v4h6' } },
+  { tag: 'path', attrs: { d: 'm9 18 3-3-3-3' } },
+  { tag: 'path', attrs: { d: 'm15 12-3-3 3-3' } }
+])
+
+// lucide-file-json：文件 + { }
+const FileJsonIcon = makeLucideIcon('FileJsonIcon', [
+  { tag: 'path', attrs: { d: 'M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z' } },
+  { tag: 'path', attrs: { d: 'M14 2v4h6' } },
+  { tag: 'path', attrs: { d: 'M10 12a1 1 0 0 0-1 1v1a1 1 0 0 1-1 1 1 1 0 0 1-1-1v-1' } },
+  { tag: 'path', attrs: { d: 'M14 18a1 1 0 0 0 1-1v-1a1 1 0 0 1 1-1 1 1 0 0 1 1 1v1' } }
+])
+
+// lucide-database：圆柱形数据库
+const DatabaseIcon = makeLucideIcon('DatabaseIcon', [
+  { tag: 'ellipse', attrs: { cx: '12', cy: '5', rx: '9', ry: '3' } },
+  { tag: 'path', attrs: { d: 'M3 5v14a9 3 0 0 0 18 0V5' } },
+  { tag: 'path', attrs: { d: 'M3 12a9 3 0 0 0 18 0' } }
+])
+
 const props = defineProps({
   visible: {
     type: Boolean,
@@ -177,6 +350,61 @@ const loading = ref(false)
 const fileTree = ref([])
 const defaultExpandedKeys = ref([])
 
+// 按文件扩展名分类，返回 icon 组件 + 配色
+const IMAGE_EXTS = new Set(['png', 'jpg', 'jpeg', 'gif', 'bmp', 'svg', 'webp', 'ico'])
+const VIDEO_EXTS = new Set(['mp4', 'avi', 'mov', 'wmv', 'flv', 'mkv', 'webm', 'mpeg', 'mpg'])
+const AUDIO_EXTS = new Set(['mp3', 'wav', 'flac', 'ogg', 'aac', 'm4a'])
+const ARCHIVE_EXTS = new Set(['zip', 'rar', '7z', 'tar', 'gz', 'bz2', 'xz', 'jar', 'war'])
+
+// Office 文档
+const WORD_EXTS = new Set(['doc', 'docx', 'rtf'])
+const EXCEL_EXTS = new Set(['xls', 'xlsx', 'csv', 'tsv'])
+const PPT_EXTS = new Set(['ppt', 'pptx'])
+const PDF_EXTS = new Set(['pdf'])
+
+// 代码（按语言细分）
+const WEB_CODE_EXTS = new Set([
+  'html', 'htm', 'css', 'scss', 'sass', 'less',
+  'js', 'jsx', 'ts', 'tsx', 'vue', 'svelte', 'mjs', 'cjs'
+])
+const BACKEND_CODE_EXTS = new Set([
+  'java', 'go', 'rs',
+  'c', 'h', 'cpp', 'cc', 'hpp',
+  'cs', 'swift', 'kt', 'kts', 'scala',
+  'rb', 'php'
+])
+const SCRIPT_EXTS = new Set([
+  'py', 'sh', 'bash', 'zsh', 'fish', 'ps1', 'bat', 'cmd'
+])
+const DATA_EXTS = new Set([
+  'json', 'yaml', 'yml', 'xml', 'toml', 'ini', 'conf', 'properties', 'env'
+])
+const SQL_EXTS = new Set(['sql', 'graphql', 'gql', 'proto'])
+
+const defaultFileIcon = { component: Document, color: '#94a3b8' }
+
+function getFileIconInfo(fileName) {
+  if (!fileName) return defaultFileIcon
+  const ext = fileName.toLowerCase().split('.').pop()
+  // 多媒体
+  if (IMAGE_EXTS.has(ext)) return { component: FileImageIcon, color: '#3b82f6' }
+  if (VIDEO_EXTS.has(ext)) return { component: FileVideoIcon, color: '#a855f7' }
+  if (AUDIO_EXTS.has(ext)) return { component: FileMusicIcon, color: '#ec4899' }
+  if (ARCHIVE_EXTS.has(ext)) return { component: FileArchiveIcon, color: '#f59e0b' }
+  // Office
+  if (WORD_EXTS.has(ext)) return { component: Document, color: '#2563eb' }
+  if (EXCEL_EXTS.has(ext)) return { component: FileSpreadsheetIcon, color: '#16a34a' }
+  if (PPT_EXTS.has(ext)) return { component: FilePresentationIcon, color: '#ea580c' }
+  if (PDF_EXTS.has(ext)) return { component: FileTextIcon, color: '#dc2626' }
+  // 代码与数据
+  if (WEB_CODE_EXTS.has(ext)) return { component: CodeXmlIcon, color: '#10b981' }
+  if (BACKEND_CODE_EXTS.has(ext)) return { component: FileCodeIcon, color: '#3b82f6' }
+  if (SCRIPT_EXTS.has(ext)) return { component: TerminalIcon, color: '#eab308' }
+  if (DATA_EXTS.has(ext)) return { component: FileJsonIcon, color: '#14b8a6' }
+  if (SQL_EXTS.has(ext)) return { component: DatabaseIcon, color: '#8b5cf6' }
+  return defaultFileIcon
+}
+
 // 右键菜单
 const contextMenuVisible = ref(false)
 const contextMenuX = ref(0)
@@ -203,6 +431,9 @@ const filePickerRef = ref(null)
 const folderPickerRef = ref(null)
 const isFolderMode = computed(() => uploadDialogTitle.value === '上传文件夹')
 
+const createInputRef = ref(null)
+const renameInputRef = ref(null)
+
 // 上传模式下拉菜单（context-menu 风格）
 const uploadMenuVisible = ref(false)
 const uploadMenuX = ref(0)
@@ -222,6 +453,7 @@ onUnmounted(() => {
 
 async function fetchFiles() {
   loading.value = true
+  const start = Date.now()
   try {
     let res = await listFiles(props.workspacePath)
     let arr = res
@@ -242,6 +474,10 @@ async function fetchFiles() {
     console.error('获取文件列表失败:', error)
     fileTree.value = []
   } finally {
+    // 强制最小 loading 时长，避免接口返回过快导致 spinner 一闪而过
+    const elapsed = Date.now() - start
+    const remain = 300 - elapsed
+    if (remain > 0) await new Promise(resolve => setTimeout(resolve, remain))
     loading.value = false
   }
 }
@@ -475,6 +711,15 @@ function handleContextNewFolder() {
   createDialogVisible.value = true
 }
 
+function handleCreateOpened() {
+  createInputRef.value?.focus()
+}
+
+function handleRenameOpened() {
+  renameInputRef.value?.focus()
+  renameInputRef.value?.select()
+}
+
 watch(() => props.visible, (val) => {
   if (val && fileTree.value.length === 0) {
     fetchFiles()
@@ -528,6 +773,11 @@ function handleNodeClick(data) {
           color: var(--fe-text-secondary);
         }
 
+        // 自定义 loading 旋转动画（替换 Element Plus :loading）
+        .is-loading {
+          animation: rotate 1s linear infinite;
+        }
+
         .el-icon {
           font-size: 16px;
         }
@@ -598,38 +848,6 @@ function handleNodeClick(data) {
   }
 }
 
-.context-menu {
-  position: fixed;
-  z-index: 9999;
-  background: var(--fe-bg-elevated);
-  border: 1px solid var(--fe-border);
-  border-radius: 4px;
-  box-shadow: var(--fe-shadow-md);
-  padding: 4px 0;
-  min-width: 120px;
-
-  .context-menu-item {
-    padding: 8px 16px;
-    cursor: pointer;
-    font-size: 14px;
-    transition: background 0.15s;
-
-    &:hover {
-      background: var(--fe-bg-overlay);
-    }
-
-    &.danger {
-      color: var(--fe-danger);
-    }
-  }
-
-  .context-menu-divider {
-    height: 1px;
-    background: var(--fe-border);
-    margin: 4px 0;
-  }
-}
-
 :deep(.el-dropdown-menu__item) {
   display: flex;
   align-items: center;
diff --git a/src/views/frontend/components/InputArea.vue b/src/views/frontend/components/InputArea.vue
index 01d36d0..e706583 100644
--- a/src/views/frontend/components/InputArea.vue
+++ b/src/views/frontend/components/InputArea.vue
@@ -3,7 +3,7 @@
     <div v-if="isEmpty && !switchingConversation" class="empty-hint">今天想做点什么？</div>
 
     <div class="input-wrapper" v-if="!switchingConversation">
-      <div class="input-container">
+        <div class="input-container">
         <!-- 悬浮文件气泡：显示在输入框正上方 -->
         <div v-if="showFileBubble" class="file-bubble" @mousedown.stop>
           <div v-if="fileLoading" class="bubble-state">加载中...</div>
@@ -82,6 +82,7 @@
               placement="top"
               :width="280"
               trigger="click"
+              :teleported="false"
             >
               <template #reference>
                 <div class="context-indicator">
@@ -352,17 +353,9 @@ function handleFilePick(file) {
     return handleFilePick(file)
   }
 
-  // 如果光标前是 @，先移除（让选中的 @ 不进入最终文本）
-  const node = range.startContainer
-  const offset = range.startOffset
-  if (node.nodeType === Node.TEXT_NODE && offset > 0) {
-    const text = node.textContent
-    if (text[offset - 1] === '@') {
-      node.textContent = text.slice(0, offset - 1) + text.slice(offset)
-      range.setStart(node, offset - 1)
-      range.setEnd(node, offset - 1)
-    }
-  }
+  // 查找并删除光标前最近的 @ 引用（含 @ 符号和 @ 之后的查询字符），
+  // 避免出现 "@12" + token 这种残留文本。
+  removeAtReferenceBeforeCaret(range)
 
   // 插入原子 token
   const token = document.createElement('span')
@@ -396,6 +389,60 @@ function handleFilePick(file) {
   fileQuery.value = ''
 }
 
+// 查找并删除光标前最近的 @ 引用（@ + @ 之后的查询字符）。
+// 跨多个文本节点也能正确处理：中间可能有 file-token 等元素节点分割。
+// 删除完成后会把 range 折叠到删除起点，供后续插入 token。
+function removeAtReferenceBeforeCaret(caretRange) {
+  const container = chatInputRef.value
+  if (!container) return
+
+  const preRange = document.createRange()
+  preRange.selectNodeContents(container)
+  preRange.setEnd(caretRange.endContainer, caretRange.endOffset)
+  const beforeText = preRange.toString()
+
+  const atIdx = beforeText.lastIndexOf('@')
+  if (atIdx < 0) return
+  // @ 引用已结束（有空白/换行），跳过清理
+  if (/[\s\n]/.test(beforeText.slice(atIdx + 1))) return
+
+  // 在 preRange 内逐文本节点迭代，定位 @ 所在的节点和偏移
+  // 用 intersectsNode 判断节点是否在 preRange 内（部分相交也算），
+  // 并显式计算节点在 preRange 内的字符范围，避免跨节点边界时的偏移误差。
+  const root = preRange.commonAncestorContainer
+  let remaining = atIdx
+
+  const walker = document.createTreeWalker(root, NodeFilter.SHOW_TEXT, null)
+  let node
+  while ((node = walker.nextNode())) {
+    if (!preRange.intersectsNode(node)) continue
+
+    // 节点在 preRange 内的实际字符范围
+    let nodeStart = 0
+    let nodeEnd = node.textContent.length
+    if (preRange.startContainer === node && preRange.startOffset > nodeStart) {
+      nodeStart = preRange.startOffset
+    }
+    if (preRange.endContainer === node && preRange.endOffset < nodeEnd) {
+      nodeEnd = preRange.endOffset
+    }
+    const nodeLenInRange = nodeEnd - nodeStart
+
+    if (remaining < nodeLenInRange) {
+      const offset = nodeStart + remaining
+      const deleteRange = document.createRange()
+      deleteRange.setStart(node, offset)
+      deleteRange.setEnd(caretRange.endContainer, caretRange.endOffset)
+      deleteRange.deleteContents()
+      // 折叠 caretRange 到删除起点，供后续 insertNode 使用
+      caretRange.setStart(node, offset)
+      caretRange.collapse(true)
+      return
+    }
+    remaining -= nodeLenInRange
+  }
+}
+
 function placeCaretAtEnd(el) {
   el.focus()
   const range = document.createRange()
diff --git a/src/views/frontend/components/SettingsDialog.vue b/src/views/frontend/components/SettingsDialog.vue
index 66df1cb..2b2818a 100644
--- a/src/views/frontend/components/SettingsDialog.vue
+++ b/src/views/frontend/components/SettingsDialog.vue
@@ -83,7 +83,9 @@ async function handleLogout() {
     await ElMessageBox.confirm('确定要退出登录吗？', '提示', {
       confirmButtonText: '退出',
       cancelButtonText: '取消',
-      type: 'warning'
+      type: 'warning',
+      // 弹窗 Teleport 到 body，需打 customClass 让 theme.scss 覆盖变量
+      customClass: 'frontend-el-message-box'
     })
   } catch {
     return
diff --git a/src/views/frontend/components/UserArea.vue b/src/views/frontend/components/UserArea.vue
index 76fe473..8f12af1 100644
--- a/src/views/frontend/components/UserArea.vue
+++ b/src/views/frontend/components/UserArea.vue
@@ -10,16 +10,16 @@
         </div>
       </div>
       <el-tooltip content="设置" placement="top" :show-after="300">
-        <el-button class="settings-btn" link @click.stop="openSettingsDialog">
+        <button class="settings-btn" type="button" @click.stop="openSettingsDialog">
           <el-icon><Setting /></el-icon>
-        </el-button>
+        </button>
       </el-tooltip>
     </div>
 
-    <el-button class="marketplace-btn" @click="goToMarketplace">
+    <!-- <el-button v-if="!hideMarketplaceBtn" class="marketplace-btn" @click="goToMarketplace">
       <el-icon><Promotion /></el-icon>
       <span>前往智能体广场</span>
-    </el-button>
+    </el-button> -->
 
     <UserInfoDialog v-model="infoDialogVisible" :user="user" @saved="handleSaved" />
     <SettingsDialog v-model="settingsDialogVisible" @open-user-info="openInfoDialog" />
@@ -39,6 +39,10 @@ const props = defineProps({
   collapsed: {
     type: Boolean,
     default: false
+  },
+  hideMarketplaceBtn: {
+    type: Boolean,
+    default: false
   }
 })
 
@@ -93,14 +97,8 @@ defineExpose({
 .user-info-row {
   display: flex;
   align-items: center;
-  gap: 4px;
-  padding: 4px 6px;
-  border-radius: var(--fe-radius-md);
-  transition: background 0.2s;
-
-  &:hover {
-    background: var(--fe-bg-hover);
-  }
+  gap: 8px;
+  padding: 4px 0px;
 }
 
 .user-main {
@@ -109,9 +107,15 @@ defineExpose({
   display: flex;
   align-items: center;
   gap: 10px;
-  padding: 4px 6px;
-  border-radius: var(--fe-radius-md);
+  // 紧贴头像，悬停背景不留内边距；左侧弧度跟头像一致（size 36 → 18px），
+  // 视觉上头像"嵌"在背景左侧
+  padding: 0;
+  border-top-left-radius: 18px;
+  border-bottom-left-radius: 18px;
+  border-top-right-radius: var(--fe-radius-md);
+  border-bottom-right-radius: var(--fe-radius-md);
   cursor: pointer;
+  transition: background 0.2s;
 
   &:hover {
     background: var(--fe-bg-hover);
@@ -133,19 +137,33 @@ defineExpose({
 }
 
 .settings-btn {
-  padding: 6px 8px;
-  margin-left: 0 !important;
+  flex-shrink: 0;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  width: 32px;
+  height: 32px;
+  padding: 0;
   color: var(--fe-text-secondary);
+  border: none;
+  background: transparent;
   border-radius: var(--fe-radius-md);
-  transition: all 0.2s;
+  cursor: pointer;
+  transition: background 0.2s, color 0.2s;
 
+  // 只在 hover 时显示背景：focus / active 不加，避免点击后焦点残留导致背景持续
   &:hover {
     background: var(--fe-bg-hover);
     color: var(--fe-text-primary);
   }
 
+  &:focus,
+  &:active {
+    outline: none;
+  }
+
   .el-icon {
-    font-size: 18px;
+    font-size: 16px;
   }
 }
 
diff --git a/src/views/frontend/components/UserInfoDialog.vue b/src/views/frontend/components/UserInfoDialog.vue
index c0bd8da..7ec06f1 100644
--- a/src/views/frontend/components/UserInfoDialog.vue
+++ b/src/views/frontend/components/UserInfoDialog.vue
@@ -40,7 +40,7 @@
       v-model="cropperVisible"
       width="800px"
       :close-on-click-modal="false"
-      append-to-body
+      modal-class="frontend-dialog"
       @opened="modalOpened"
       @close="closeCropperDialog"
     >
diff --git a/src/views/frontend/index.vue b/src/views/frontend/index.vue
index 3db36bc..c363222 100644
--- a/src/views/frontend/index.vue
+++ b/src/views/frontend/index.vue
@@ -5,7 +5,7 @@
 <template>
   <div class="frontend-container">
     <!-- 左侧会话列表 -->
-    <ConversationSidebar ref="conversationSidebarRef" @select="handleConversationSelect" @new-session="handleNewSession" @ready="switchingConversation = false" />
+    <ConversationSidebar ref="conversationSidebarRef" :hide-marketplace-btn="true" @select="handleConversationSelect" @new-session="handleNewSession" @ready="switchingConversation = false" />
 
     <!-- 右侧主内容区 -->
     <div class="main-content">
@@ -22,15 +22,17 @@
       <!-- 聊天区域 + 右侧文件面板 -->
       <div class="content-wrapper">
         <!-- 聊天区域 -->
-        <div class="chat-area">
+        <div class="chat-area" :class="{ 'is-switching': switchingConversation }">
           <!-- 聊天消息区（有消息时才显示） -->
-          <ChatWindow
-            v-if="messages.length > 0"
-            ref="chatWindowRef"
-            :messages="messages"
-            :loading="loading"
-            @file-click="handleFileClick"
-          />
+          <transition name="chat-fade">
+            <ChatWindow
+              v-if="messages.length > 0"
+              ref="chatWindowRef"
+              :messages="messages"
+              :loading="loading"
+              @file-click="handleFileClick"
+            />
+          </transition>
 
           <!-- 输入区 -->
           <InputArea
@@ -935,9 +937,24 @@ function handleStop() {
   display: flex;
   flex-direction: column;
   overflow: hidden;
-  transition: all 0.3s;
+  transition: opacity 0.3s ease, transform 0.3s ease;
   min-width: 0;
   min-height: 0;
+
+  // 切换会话时整个聊天区域淡出 + 轻微下移，加载完成后淡入（向上复位）
+  &.is-switching {
+    opacity: 0;
+    transform: translateY(12px);
+  }
+}
+
+// ChatWindow 出现时的渐入动画（与 chat-area 配合）
+.chat-fade-enter-active {
+  transition: opacity 0.3s ease, transform 0.3s ease;
+}
+.chat-fade-enter-from {
+  opacity: 0;
+  transform: translateY(8px);
 }
 
 .file-panel-wrapper {
diff --git a/src/views/frontend/marketplace.vue b/src/views/frontend/marketplace.vue
index fc7df49..a933733 100644
--- a/src/views/frontend/marketplace.vue
+++ b/src/views/frontend/marketplace.vue
@@ -1,93 +1,94 @@
 <template>
   <div class="frontend-container marketplace-container">
-    <!-- 顶部区域 -->
-    <div class="marketplace-header">
-      <h1 class="marketplace-title">AI 智能体市场</h1>
-      <p class="marketplace-subtitle">探索并使用精选的 AI 智能体，提升工作效率</p>
-    </div>
-
-    <!-- 分类标签导航 -->
-    <div class="category-nav">
-      <div class="category-tabs">
-        <span
-          v-for="(tab, index) in categoryTabs"
-          :key="index"
-          class="category-tab"
-          :class="{ active: currentCategory === tab.key }"
-          @click="handleCategoryChange(tab.key)"
-        >
-          {{ tab.name }}
-        </span>
-      </div>
-      <div class="sort-dropdown">
-        <el-dropdown trigger="click" @command="handleSortChange">
-          <span class="sort-button">
-            <el-icon><Filter /></el-icon>
-            综合排序
-            <el-icon><ArrowDown /></el-icon>
-          </span>
-          <template #dropdown>
-            <el-dropdown-menu>
-              <el-dropdown-item
-                v-for="item in sortOptions"
-                :key="item.key"
-                :command="item.key"
-                :class="{ selected: currentSort === item.key }"
-              >
-                {{ item.name }}
-              </el-dropdown-item>
-            </el-dropdown-menu>
-          </template>
-        </el-dropdown>
-      </div>
-    </div>
-
-    <!-- 加载状态 -->
-    <div v-if="loading" class="loading-wrapper">
-      <el-skeleton :rows="8" animated />
-    </div>
-
-    <!-- 智能体网格 -->
-    <div v-else class="agents-grid">
-      <div
-        v-for="agent in filteredAgents"
-        :key="agent.id"
-        class="agent-card"
-        @click="handleAgentClick(agent)"
-      >
-        <!-- 悬浮添加按钮 -->
-        <!-- <div v-if="agent.canAdd" class="card-add-btn">
-          <el-button type="primary" size="small" round>添加</el-button>
-        </div> -->
-
-        <!-- 卡片内容 -->
-        <div class="card-header">
-          <div class="agent-avatar">
-            <img v-if="agent.avatar" :src="agent.avatar" :alt="agent.name" />
-            <span v-else class="avatar-placeholder">{{ agent.name.charAt(0).toUpperCase() }}</span>
-          </div>
-          <div class="agent-info">
-            <div class="agent-name">{{ agent.name }}</div>
+    <!-- 左侧栏：复用 frontend 的 ConversationSidebar（含底部 UserArea），上半部分注入分类 Tab -->
+    <ConversationSidebar :hide-marketplace-btn="true">
+      <template #content>
+        <div class="marketplace-sidebar-content">
+          <div class="marketplace-tabs-header">分类</div>
+          <div class="marketplace-tabs">
+            <span
+              v-for="tab in categoryTabs"
+              :key="tab.key"
+              class="marketplace-tab"
+              :class="{ active: currentCategory === tab.key }"
+              @click="handleCategoryChange(tab.key)"
+            >
+              <span class="marketplace-tab-dot"></span>
+              <span class="marketplace-tab-label">{{ tab.name }}</span>
+            </span>
           </div>
         </div>
-        <div class="agent-intro">{{ agent.remark || '暂无备注' }}</div>
-        <!-- <el-tooltip :content="agent.remark || ''" placement="top" :disabled="!agent.remark">
-         
-        </el-tooltip> -->
-      </div>
-    </div>
+      </template>
+    </ConversationSidebar>
 
-    <!-- 空状态 -->
-    <el-empty v-if="!loading && filteredAgents.length === 0" description="暂无智能体" />
+    <!-- 右侧主内容 -->
+    <div class="marketplace-main">
+      <!-- 顶部区域 -->
+      <div class="marketplace-header">
+        <h1 class="marketplace-title">AI 智能体市场</h1>
+        <p class="marketplace-subtitle">探索并使用精选的 AI 智能体，提升工作效率</p>
+      </div>
+
+      <!-- 加载状态 -->
+      <div v-if="loading" class="loading-wrapper">
+        <el-skeleton :rows="8" animated />
+      </div>
+
+      <!-- 智能体网格 -->
+      <div v-else class="agents-grid">
+        <div
+          v-for="agent in filteredAgents"
+          :key="agent.id"
+          class="agent-card"
+          @click="handleAgentClick(agent)"
+        >
+          <!-- 悬浮分享按钮：复制当前智能体的聊天链接 -->
+          <el-tooltip content="分享给好友" placement="top" :show-after="300">
+            <button
+              class="card-share-btn"
+              type="button"
+              aria-label="分享智能体"
+              @click.stop="handleShareAgent(agent)"
+            >
+              <el-icon><Share /></el-icon>
+            </button>
+          </el-tooltip>
+
+          <!-- 悬浮添加按钮 -->
+          <!-- <div v-if="agent.canAdd" class="card-add-btn">
+            <el-button type="primary" size="small" round>添加</el-button>
+          </div> -->
+
+          <!-- 卡片内容 -->
+          <div class="card-header">
+            <div class="agent-avatar">
+              <img v-if="agent.avatar" :src="agent.avatar" :alt="agent.name" />
+              <span v-else class="avatar-placeholder">{{ agent.name.charAt(0).toUpperCase() }}</span>
+            </div>
+            <div class="agent-info">
+              <div class="agent-name">{{ agent.name }}</div>
+            </div>
+          </div>
+          <div class="agent-intro">{{ agent.remark || '暂无备注' }}</div>
+          <!-- <el-tooltip :content="agent.remark || ''" placement="top" :disabled="!agent.remark">
+
+          </el-tooltip> -->
+        </div>
+      </div>
+
+      <!-- 空状态 -->
+      <el-empty v-if="!loading && filteredAgents.length === 0" description="暂无智能体" />
+    </div>
   </div>
 </template>
 
 <script setup>
 import { ref, computed, onMounted } from 'vue'
 import { useRouter } from 'vue-router'
-import { Filter, ArrowDown } from '@element-plus/icons-vue'
+import { Share } from '@element-plus/icons-vue'
 import { listAgentProjects } from '@/api/frontend'
 import { ElMessage } from 'element-plus'
+import ConversationSidebar from './components/ConversationSidebar.vue'
 import useSettingsStore from '@/store/modules/settings'
 
 const router = useRouter()
@@ -106,17 +107,8 @@ const categoryTabs = [
   { key: 'life', name: '生活娱乐' }
 ]
 
-// 排序选项
-const sortOptions = [
-  { key: 'popular', name: '人气最高' },
-  { key: 'latest', name: '最新发布' },
-  { key: 'name', name: '名称排序' }
-]
-
 // 当前选中分类
 const currentCategory = ref('all')
-// 当前排序方式
-const currentSort = ref('popular')
 // 加载状态
 const loading = ref(false)
 // 智能体列表
@@ -139,30 +131,13 @@ const mockAgents = [
 ]
 
 /**
- * 根据当前分类和排序筛选智能体列表
+ * 根据当前分类筛选智能体列表
  */
 const filteredAgents = computed(() => {
   let result = [...agentsList.value]
-
-  // 分类筛选
   if (currentCategory.value !== 'all') {
     result = result.filter(agent => agent.category === currentCategory.value)
   }
-
-  // 排序
-  switch (currentSort.value) {
-    case 'popular':
-      result.sort((a, b) => b.popularity - a.popularity)
-      break
-    case 'latest':
-      // 按 ID 降序模拟最新
-      result.sort((a, b) => b.id - a.id)
-      break
-    case 'name':
-      result.sort((a, b) => a.name.localeCompare(b.name))
-      break
-  }
-
   return result
 })
 
@@ -173,13 +148,6 @@ function handleCategoryChange(category) {
   currentCategory.value = category
 }
 
-/**
- * 处理排序切换
- */
-function handleSortChange(sortKey) {
-  currentSort.value = sortKey
-}
-
 /**
  * 处理智能体卡片点击
  */
@@ -190,6 +158,21 @@ function handleAgentClick(agent) {
   })
 }
 
+/**
+ * 复制分享链接到剪贴板
+ * 用户点击链接后可直接进入对应智能体的聊天界面
+ */
+async function handleShareAgent(agent) {
+  const url = `${window.location.origin}/frontend?agentId=${agent.id}&name=${encodeURIComponent(agent.name)}`
+  try {
+    await navigator.clipboard.writeText(url)
+    ElMessage.success('分享链接已复制')
+  } catch (error) {
+    console.error('复制分享链接失败:', error)
+    ElMessage.error('复制失败，请手动复制')
+  }
+}
+
 /**
  * 获取智能体列表数据
  */
@@ -243,11 +226,83 @@ onMounted(() => {
 
 <style scoped lang="scss">
 .marketplace-container {
-  min-height: 100%;
+  display: flex;
+  height: 100%;
+  overflow: hidden;
   background: var(--fe-bg-base);
+}
+
+.marketplace-main {
+  flex: 1;
+  display: flex;
+  flex-direction: column;
+  overflow: hidden;
+  min-width: 0;
   padding: 24px 32px;
 }
 
+/* 左侧栏内的分类 tabs */
+.marketplace-sidebar-content {
+  display: flex;
+  flex-direction: column;
+  height: 100%;
+  min-height: 0;
+}
+
+.marketplace-tabs-header {
+  box-sizing: border-box;
+  padding: 11px 16px;
+  font-size: 12px;
+  font-weight: 600;
+  color: var(--fe-text-muted);
+  border-bottom: 1px solid var(--fe-border);
+  text-transform: uppercase;
+  letter-spacing: 0.5px;
+}
+
+.marketplace-tabs {
+  flex: 1;
+  min-height: 0;
+  overflow-y: auto;
+  padding: 8px;
+}
+
+.marketplace-tab {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  padding: 10px 14px;
+  margin: 2px 0;
+  font-size: 14px;
+  color: var(--fe-text-primary);
+  cursor: pointer;
+  border-radius: 8px;
+  transition: background 0.2s, color 0.2s;
+
+  &:hover {
+    background: var(--fe-bg-hover);
+  }
+
+  &.active {
+    background: var(--fe-accent-soft);
+    color: var(--fe-accent);
+    font-weight: 600;
+  }
+}
+
+.marketplace-tab-dot {
+  width: 6px;
+  height: 6px;
+  background: transparent;
+  border-radius: 50%;
+  flex-shrink: 0;
+  transition: background 0.2s;
+}
+
+.marketplace-tab.active .marketplace-tab-dot {
+  background: var(--fe-accent);
+}
+
 /* 顶部区域 */
 .marketplace-header {
   margin-bottom: 24px;
@@ -266,62 +321,6 @@ onMounted(() => {
   }
 }
 
-/* 分类导航 */
-.category-nav {
-  display: flex;
-  align-items: center;
-  justify-content: space-between;
-  margin-bottom: 24px;
-  background: var(--fe-bg-elevated);
-  padding: 12px 16px;
-  border-radius: 8px;
-  box-shadow: var(--fe-shadow-sm);
-
-  .category-tabs {
-    display: flex;
-    flex-wrap: wrap;
-    gap: 8px;
-  }
-
-  .category-tab {
-    padding: 8px 16px;
-    font-size: 14px;
-    color: var(--fe-text-secondary);
-    cursor: pointer;
-    border-radius: 20px;
-    transition: all 0.3s ease;
-
-    &:hover {
-      color: var(--fe-accent);
-      background: var(--fe-accent-soft);
-    }
-
-    &.active {
-      color: var(--fe-text-inverse);
-      background: var(--fe-accent);
-    }
-  }
-
-  .sort-dropdown {
-    .sort-button {
-      display: flex;
-      align-items: center;
-      gap: 6px;
-      padding: 8px 12px;
-      font-size: 14px;
-      color: var(--fe-text-secondary);
-      cursor: pointer;
-      border-radius: 4px;
-      transition: all 0.3s;
-
-      &:hover {
-        color: var(--fe-accent);
-        background: var(--fe-bg-hover);
-      }
-    }
-  }
-}
-
 /* 加载状态 */
 .loading-wrapper {
   background: var(--fe-bg-elevated);
@@ -374,6 +373,45 @@ onMounted(() => {
     opacity: 1;
   }
 
+  /* 悬浮分享按钮：默认隐藏，hover 卡片时显示 */
+  .card-share-btn {
+    position: absolute;
+    top: 12px;
+    right: 12px;
+    width: 32px;
+    height: 32px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    border-radius: 6px;
+    background: var(--fe-bg-overlay);
+    color: var(--fe-text-secondary);
+    border: 1px solid var(--fe-border);
+    cursor: pointer;
+    opacity: 0;
+    transition: opacity 0.2s ease, background 0.2s ease, color 0.2s ease,
+      border-color 0.2s ease;
+
+    .el-icon {
+      font-size: 16px;
+    }
+
+    &:hover {
+      background: var(--fe-accent-soft);
+      color: var(--fe-accent);
+      border-color: var(--fe-accent-border);
+    }
+
+    &:focus-visible {
+      outline: none;
+      opacity: 1;
+    }
+  }
+
+  &:hover .card-share-btn {
+    opacity: 1;
+  }
+
   /* 卡片头部 */
   .card-header {
     display: flex;
@@ -452,11 +490,5 @@ onMounted(() => {
   .agents-grid {
     grid-template-columns: 1fr;
   }
-
-  .category-nav {
-    flex-direction: column;
-    align-items: flex-start;
-    gap: 12px;
-  }
 }
 </style>
diff --git a/src/views/frontend/styles/theme.scss b/src/views/frontend/styles/theme.scss
index abcb4f4..38d383f 100644
--- a/src/views/frontend/styles/theme.scss
+++ b/src/views/frontend/styles/theme.scss
@@ -1,5 +1,7 @@
-// Frontend dark theme tokens — scope to .frontend-container so admin pages are unaffected.
-.frontend-container {
+// Frontend 主题变量 — 定义在 :root 而非 .frontend-container，
+// 这样 Teleport 到 body 的元素（如右键菜单）也能继承到变量。
+// --fe- 前缀保证不会与 admin 主题变量冲突（admin 模块未使用 --fe-*）。
+:root {
   // —— 基础色 ——
   --fe-bg-base: #1e1e1e;
   --fe-bg-elevated: #252526;
@@ -44,40 +46,8 @@
   --fe-shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.5);
 }
 
-// —— Element Plus 变量覆盖（仅在 frontend-container 下生效）——
-.frontend-container {
-  --el-bg-color: var(--fe-bg-elevated);
-  --el-bg-color-page: var(--fe-bg-base);
-  --el-bg-color-overlay: var(--fe-bg-overlay);
-  --el-text-color-primary: var(--fe-text-primary);
-  --el-text-color-regular: var(--fe-text-secondary);
-  --el-text-color-secondary: var(--fe-text-muted);
-  --el-text-color-placeholder: var(--fe-text-muted);
-  --el-border-color: var(--fe-border);
-  --el-border-color-light: var(--fe-border);
-  --el-border-color-lighter: var(--fe-border);
-  --el-border-color-extra-light: var(--fe-border);
-  --el-fill-color-blank: var(--fe-bg-elevated);
-  --el-fill-color-light: var(--fe-bg-hover);
-  --el-fill-color-lighter: var(--fe-bg-hover);
-  --el-color-primary: var(--fe-accent);
-  --el-color-primary-light-3: var(--fe-accent-hover);
-  --el-color-primary-light-5: var(--fe-accent-soft);
-  --el-color-primary-light-7: var(--fe-accent-soft);
-  --el-color-primary-light-9: var(--fe-accent-soft);
-  --el-color-danger: var(--fe-danger);
-  --el-color-warning: var(--fe-warning);
-  --el-color-info: var(--fe-info);
-  --el-color-success: var(--fe-accent);
-
-  // —— 响应式断点 ——
-  // .file-panel-wrapper / .file-preview-wrapper 都在 index.vue 的 <style scoped> 里，
-  // 直接写在这里会被 [data-v-xxx] 选择器压过 specificity，无法生效。
-  // 实际断点已迁到 index.vue：≤768px 收起文件列表，≤1200px 收起文件预览。
-}
-
-// —— 浅色主题覆盖（通过 data-theme="light" 切换）——
-.frontend-container[data-theme="light"] {
+// —— 浅色主题覆盖（通过 body[data-fe-theme="light"] 切换，由 settings.js 同步）——
+body[data-fe-theme="light"] {
   --fe-bg-base: #ffffff;
   --fe-bg-elevated: #fafafa;
   --fe-bg-overlay: #f5f5f5;
@@ -109,8 +79,60 @@
   --fe-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
   --fe-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
   --fe-shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.12);
+}
 
-  // Element Plus 变量重置为默认浅色
+// —— Element Plus 变量映射（仅在 frontend-container 下生效）——
+// .frontend-container 内的 el-* 组件继承这些变量；
+// 弹窗已不再 append-to-body，所以 dialog 内 el-* 组件能拿到。
+.frontend-container {
+  --el-bg-color: var(--fe-bg-elevated);
+  --el-bg-color-page: var(--fe-bg-base);
+  --el-bg-color-overlay: var(--fe-bg-overlay);
+  --el-text-color-primary: var(--fe-text-primary);
+  --el-text-color-regular: var(--fe-text-secondary);
+  --el-text-color-secondary: var(--fe-text-muted);
+  --el-text-color-placeholder: var(--fe-text-muted);
+  --el-border-color: var(--fe-border);
+  --el-border-color-light: var(--fe-border);
+  --el-border-color-lighter: var(--fe-border);
+  --el-border-color-extra-light: var(--fe-border);
+  --el-fill-color-blank: var(--fe-bg-elevated);
+  --el-fill-color-light: var(--fe-bg-hover);
+  --el-fill-color-lighter: var(--fe-bg-hover);
+  --el-color-primary: var(--fe-accent);
+  --el-color-primary-light-3: var(--fe-accent-hover);
+  --el-color-primary-light-5: var(--fe-accent-soft);
+  --el-color-primary-light-7: var(--fe-accent-soft);
+  --el-color-primary-light-9: var(--fe-accent-soft);
+  --el-color-danger: var(--fe-danger);
+  --el-color-warning: var(--fe-warning);
+  --el-color-info: var(--fe-info);
+  --el-color-success: var(--fe-accent);
+
+  // —— 按钮 primary active 状态跟随主题色 ——
+  // Element Plus 在 :root 上由 theme.js 算出 dark-* 系列（基于 admin 主题色），
+  // frontend-container 没覆盖，导致 primary 按钮长按仍显示 Element Plus 默认蓝色。
+  .el-button--primary {
+    --el-button-active-bg-color: var(--fe-accent-hover);
+    --el-button-active-border-color: var(--fe-accent-hover);
+    --el-button-active-color: var(--fe-accent-hover);
+  }
+
+  // —— 关闭 icon / 字数统计 等组件默认用 --el-color-info（被映射为深色蓝色），主题下应跟随主题色 ——
+  .el-dialog__close,
+  .el-input .el-input__count,
+  .el-textarea .el-input__count {
+    color: var(--fe-text-secondary);
+  }
+
+  .el-dialog__headerbtn:hover .el-dialog__close {
+    color: var(--fe-accent);
+  }
+}
+
+// —— 浅色主题下 Element Plus 变量重置（仅 frontend 容器内）——
+// --fe-* 已在 body[data-fe-theme="light"] 处理；这里只重置 --el-* 系列。
+.frontend-container[data-theme="light"] {
   --el-bg-color: #ffffff;
   --el-bg-color-page: #f2f3f5;
   --el-bg-color-overlay: #ffffff;
@@ -135,3 +157,95 @@
   --el-color-info: #909399;
   --el-color-success: #67c23a;
 }
+
+// —— ElMessageBox 主题适配（Teleport 到 body，需打 customClass 标记）——
+// 在 frontend 模块下，所有 ElMessageBox 调用应传 customClass: 'frontend-el-message-box'，
+// 让弹窗内的 Element Plus 组件继承 frontend 主题。
+.frontend-el-message-box {
+  --el-bg-color: var(--fe-bg-elevated);
+  --el-bg-color-overlay: var(--fe-bg-overlay);
+  --el-bg-color-page: var(--fe-bg-base);
+  --el-text-color-primary: var(--fe-text-primary);
+  --el-text-color-regular: var(--fe-text-secondary);
+  --el-text-color-secondary: var(--fe-text-muted);
+  --el-text-color-placeholder: var(--fe-text-muted);
+  --el-border-color: var(--fe-border);
+  --el-border-color-light: var(--fe-border);
+  --el-border-color-lighter: var(--fe-border);
+  --el-border-color-extra-light: var(--fe-border);
+  --el-fill-color-blank: var(--fe-bg-elevated);
+  --el-fill-color-light: var(--fe-bg-hover);
+  --el-fill-color-lighter: var(--fe-bg-hover);
+  --el-color-primary: var(--fe-accent);
+  --el-color-primary-light-3: var(--fe-accent-hover);
+  --el-color-primary-light-5: var(--fe-accent-soft);
+  --el-color-primary-light-7: var(--fe-accent-soft);
+  --el-color-primary-light-9: var(--fe-accent-soft);
+  --el-color-warning: var(--fe-warning);
+
+  // 弹窗主体背景与边框
+  background: var(--fe-bg-elevated);
+  border: 1px solid var(--fe-border);
+
+  .el-message-box__header {
+    background: var(--fe-bg-elevated);
+    color: var(--fe-text-primary);
+    padding-bottom: 12px;
+    border-bottom: 1px solid var(--fe-border);
+  }
+
+  .el-message-box__title {
+    color: var(--fe-text-primary);
+  }
+
+  .el-message-box__content {
+    background: var(--fe-bg-elevated);
+    color: var(--fe-text-primary);
+    padding: 20px 16px;
+  }
+
+  .el-message-box__message {
+    color: var(--fe-text-primary);
+  }
+
+  .el-message-box__btns {
+    background: var(--fe-bg-elevated);
+    border-top: 1px solid var(--fe-border);
+    padding: 12px 16px;
+  }
+}
+
+// —— 全局右键菜单（用于会话列表 / 文件面板等，通过 Teleport 渲染到 body）——
+// --fe-* 变量在 :root 全局可继承，菜单元素样式不受所在 DOM 位置影响。
+.context-menu {
+  position: fixed;
+  z-index: 9999;
+  background: var(--fe-bg-elevated);
+  border: 1px solid var(--fe-border);
+  border-radius: 4px;
+  box-shadow: var(--fe-shadow-md);
+  padding: 4px 0;
+  min-width: 120px;
+  color: var(--fe-text-primary);
+
+  .context-menu-item {
+    padding: 8px 16px;
+    cursor: pointer;
+    font-size: 14px;
+    transition: background 0.15s;
+
+    &:hover {
+      background: var(--fe-bg-overlay);
+    }
+
+    &.danger {
+      color: var(--fe-danger);
+    }
+  }
+
+  .context-menu-divider {
+    height: 1px;
+    background: var(--fe-border);
+    margin: 4px 0;
+  }
+}
\ No newline at end of file