refactor: 抽离独立Layout，实现路由分层

优化内容：
1. 新增 MainLayout.vue 独立布局组件
   - 封装 TopNav、SidebarNav、主内容区域
   - 独立的页面脚注

2. 简化 App.vue
   - 只负责主题配置和SvgSprite
   - 只渲染 RouterView
   - 移除所有布局相关代码

3. 重构路由配置
   - 登录页 /login：独立渲染，不使用Layout
   - 根路由 /：使用 MainLayout，渲染所有需要布局的页面
   - 所有业务页面都作为根路由的子路由嵌套渲染

架构优势：
- 登录页独立，不受主布局影响
- 主布局统一管理，减少重复代码
- 路由结构清晰，易于维护
- 符合Vue最佳实践

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

frontend/app/web-gold/src/App.vue

@@ -1,8 +1,6 @@
 <script setup>
 import { RouterView } from 'vue-router'
 import { ref, onMounted } from 'vue'
-import SidebarNav from './components/SidebarNav.vue'
-import TopNav from './components/TopNav.vue'
 import { theme } from 'ant-design-vue'
 import SvgSprite from '@/components/icons/SvgSprite.vue'
 import { useUserStore } from '@/stores/user'
@@ -73,49 +71,11 @@ onMounted(async () => {
 
 <template>
   <a-config-provider :theme="themeToken">
-    <div class="app-shell">
-      <SvgSprite />
-      <TopNav />
-      <div class="app-body">
-        <SidebarNav />
-        <div class="app-content">
-          <main class="content-scroll">
-           <keep-alive>
-              <RouterView />
-           </keep-alive>
-          </main>
-          <footer class="py-6 text-xs text-center text-gray-500">
-            v0.1 · API 正常 · © 2025 金牌内容大师
-          </footer>
-        </div>
-      </div>
-    </div>
+    <SvgSprite />
+    <RouterView />
   </a-config-provider>
-  
 </template>
 
-<style scoped>
-.app-shell {
-  min-height: 100vh;
-  background: var(--color-bg);
-}
-
-/* 顶部固定，下面主体需要留出空间 */
-.app-body {
-  padding-top: 70px; /* 与 TopNav 高度对齐 */
-  display: grid;
-  grid-template-columns: 220px 1fr; /* 左侧固定宽度侧边栏 */
-}
-
-.app-content {
-  min-height: calc(100vh - 70px);
-  display: flex;
-  flex-direction: column;
-}
-
-.content-scroll {
-  flex: 1 1 auto;
-  overflow: auto; /* 右侧内容区域滚动 */
-  padding: 0 16px 0 16px;
-}
+<style>
+/* 全局样式保持不变 */
 </style>

frontend/app/web-gold/src/layouts/MainLayout.vue

@@ -0,0 +1,49 @@
+<script setup>
+import TopNav from '@/components/TopNav.vue'
+import SidebarNav from '@/components/SidebarNav.vue'
+</script>
+
+<template>
+  <div class="app-shell">
+    <TopNav />
+    <div class="app-body">
+      <SidebarNav />
+      <div class="app-content">
+        <main class="content-scroll">
+          <keep-alive>
+            <RouterView />
+          </keep-alive>
+        </main>
+        <footer class="py-6 text-xs text-center text-gray-500">
+          v0.1 · API 正常 · © 2025 金牌内容大师
+        </footer>
+      </div>
+    </div>
+  </div>
+</template>
+
+<style scoped>
+.app-shell {
+  min-height: 100vh;
+  background: var(--color-bg);
+}
+
+/* 顶部固定，下面主体需要留出空间 */
+.app-body {
+  padding-top: 70px; /* 与 TopNav 高度对齐 */
+  display: grid;
+  grid-template-columns: 220px 1fr; /* 左侧固定宽度侧边栏 */
+}
+
+.app-content {
+  min-height: calc(100vh - 70px);
+  display: flex;
+  flex-direction: column;
+}
+
+.content-scroll {
+  flex: 1 1 auto;
+  overflow: auto; /* 右侧内容区域滚动 */
+  padding: 0 16px 0 16px;
+}
+</style>

frontend/app/web-gold/src/router/index.js

@@ -1,13 +1,10 @@
 import { createRouter, createWebHistory } from 'vue-router'
 import { useUserStore } from '@/stores/user'
 import tokenManager from '@gold/utils/token-manager'
+import MainLayout from '@/layouts/MainLayout.vue'
 
 const routes = [
-  {
-    path: '/',
-    redirect: '/content-style/benchmark'
-  },
-  // 登录页面
+  // 登录页面 - 独立渲染，不使用Layout
   {
     path: '/login',
     name: '登录',
@@ -16,62 +13,72 @@ const routes = [
       requiresAuth: false
     }
   },
-  // { path: '/home', name: '首页', component: () => import('../views/home/Home.vue') },
+  // 主布局路由 - 所有需要Layout的页面都在这里
   {
-    path: '/content-style',
-    name: '内容风格分析',
+    path: '/',
+    component: MainLayout,
+    redirect: '/content-style/benchmark',
     children: [
-      { path: '', redirect: '/content-style/benchmark' },
-      { path: 'benchmark', name: '对标分析', component: () => import('../views/content-style/Benchmark.vue') },
-      { path: 'copywriting', name: '文案创作', component: () => import('../views/content-style/Copywriting.vue') },
-    ]
-  },
-  {
-    path: '/trends',
-    name: '热点趋势分析',
-    children: [
-      { path: '', redirect: '/trends/heat' },
-      { path: 'heat', name: '热度分析', component: () => import('../views/trends/Heat.vue') },
-      { path: 'forecast', name: '热点预测', component: () => import('../views/trends/Forecast.vue') },
-      { path: 'copywriting', name: '趋势文案创作', component: () => import('../views/trends/Copywriting.vue') },
-    ]
-  },
-  {
-    path: '/digital-human',
-    name: '数字人',
-    children: [
-      { path: '', redirect: '/digital-human/voice-copy' },
-      { path: 'voice-copy', name: '人声克隆', component: () => import('../views/dh/VoiceCopy.vue') },
-      { path: 'avatar', name: '生成数字人', component: () => import('../views/dh/Avatar.vue') },
-      { path: 'video', name: '数字人视频', component: () => import('../views/dh/Video.vue') },
-    ]
-  },
-  {
-    path: '/material',
-    name: '素材库',
-    children: [
-      { path: '', redirect: '/material/list' },
-      { path: 'list', name: '素材列表', component: () => import('../views/material/MaterialList.vue') },
-      { path: 'mix-task', name: '混剪任务', component: () => import('../views/material/MixTaskList.vue') },
-      { path: 'group', name: '素材分组', component: () => import('../views/material/MaterialGroup.vue') },
-    ]
-  },
-  {
-    path: '/system',
-    name: '系统',
-    children: [
-      { path: '', redirect: '/system/style-settings' },
-      { path: 'style-settings', name: '风格设置', component: () => import('../views/system/StyleSettings.vue') },
+      {
+        path: 'content-style',
+        name: '内容风格分析',
+        children: [
+          { path: '', redirect: '/content-style/benchmark' },
+          { path: 'benchmark', name: '对标分析', component: () => import('../views/content-style/Benchmark.vue') },
+          { path: 'copywriting', name: '文案创作', component: () => import('../views/content-style/Copywriting.vue') },
+        ]
+      },
+      {
+        path: 'trends',
+        name: '热点趋势分析',
+        children: [
+          { path: '', redirect: '/trends/heat' },
+          { path: 'heat', name: '热度分析', component: () => import('../views/trends/Heat.vue') },
+          { path: 'forecast', name: '热点预测', component: () => import('../views/trends/Forecast.vue') },
+          { path: 'copywriting', name: '趋势文案创作', component: () => import('../views/trends/Copywriting.vue') },
+        ]
+      },
+      {
+        path: 'digital-human',
+        name: '数字人',
+        children: [
+          { path: '', redirect: '/digital-human/voice-copy' },
+          { path: 'voice-copy', name: '人声克隆', component: () => import('../views/dh/VoiceCopy.vue') },
+          { path: 'avatar', name: '生成数字人', component: () => import('../views/dh/Avatar.vue') },
+          { path: 'video', name: '数字人视频', component: () => import('../views/dh/Video.vue') },
+        ]
+      },
+      {
+        path: 'material',
+        name: '素材库',
+        children: [
+          { path: '', redirect: '/material/list' },
+          { path: 'list', name: '素材列表', component: () => import('../views/material/MaterialList.vue') },
+          { path: 'mix-task', name: '混剪任务', component: () => import('../views/material/MixTaskList.vue') },
+          { path: 'group', name: '素材分组', component: () => import('../views/material/MaterialGroup.vue') },
+        ]
+      },
+      {
+        path: 'system',
+        name: '系统',
+        children: [
+          { path: '', redirect: '/system/style-settings' },
+          { path: 'style-settings', name: '风格设置', component: () => import('../views/system/StyleSettings.vue') },
+        ],
+        meta: {
+          requiresAuth: true
+        }
+      },
+      { path: 'realtime-hot', name: '实时热点推送', component: () => import('../views/realtime/RealtimeHot.vue') },
+      { path: 'capcut-import', name: '剪映导入', component: () => import('../views/capcut/CapcutImport.vue') },
+      { path: 'help', name: '帮助', component: () => import('../views/misc/Help.vue') },
+      { path: 'download', name: '下载', component: () => import('../views/misc/Download.vue') },
+      { path: 'settings/theme', name: '主题设置', component: () => import('../views/misc/Theme.vue') },
     ],
     meta: {
       requiresAuth: true
     }
   },
-  { path: '/realtime-hot', name: '实时热点推送', component: () => import('../views/realtime/RealtimeHot.vue') },
-  { path: '/capcut-import', name: '剪映导入', component: () => import('../views/capcut/CapcutImport.vue') },
-  { path: '/help', name: '帮助', component: () => import('../views/misc/Help.vue') },
-  { path: '/download', name: '下载', component: () => import('../views/misc/Download.vue') },
-  { path: '/settings/theme', name: '主题设置', component: () => import('../views/misc/Theme.vue') },
 ]
 
 const router = createRouter({