diff --git a/src/router/index.ts b/src/router/index.ts
index 3c3955b..fb38fd5 100644
--- a/src/router/index.ts
+++ b/src/router/index.ts
@@ -1,5 +1,6 @@
 import { createRouter, createWebHistory } from 'vue-router'
 import { useAuthStore } from '@/stores/auth'
+import { setPageMeta } from '@/utils/seo'
 
 const router = createRouter({
   history: createWebHistory(),
@@ -7,7 +8,8 @@ const router = createRouter({
     {
       path: '/',
       name: 'Home',
-      component: () => import('@/views/HomeView.vue')
+      component: () => import('@/views/HomeView.vue'),
+      meta: { title: '首页', description: 'Mach-CMS 技术博客与笔记' }
     },
     {
       path: '/post/:slug',
@@ -17,24 +19,25 @@ const router = createRouter({
     {
       path: '/search',
       name: 'Search',
-      component: () => import('@/views/SearchView.vue')
+      component: () => import('@/views/SearchView.vue'),
+      meta: { title: '搜索' }
     },
     {
       path: '/login',
       name: 'Login',
       component: () => import('@/views/LoginView.vue'),
-      meta: { guestOnly: true }
+      meta: { guestOnly: true, title: '登录' }
     },
     {
       path: '/register',
       name: 'Register',
       component: () => import('@/views/RegisterView.vue'),
-      meta: { guestOnly: true }
+      meta: { guestOnly: true, title: '注册' }
     },
     {
       path: '/admin',
       component: () => import('@/views/admin/AdminLayout.vue'),
-      meta: { requiresAuth: true },
+      meta: { requiresAuth: true, title: '管理后台' },
       children: [
         {
           path: '',
@@ -43,36 +46,46 @@ const router = createRouter({
         {
           path: 'articles',
           name: 'AdminArticleList',
-          component: () => import('@/views/admin/ArticleListView.vue')
+          component: () => import('@/views/admin/ArticleListView.vue'),
+          meta: { title: '文章管理' }
         },
         {
           path: 'articles/new',
           name: 'AdminArticleCreate',
-          component: () => import('@/views/admin/ArticleEditorView.vue')
+          component: () => import('@/views/admin/ArticleEditorView.vue'),
+          meta: { title: '新建文章' }
         },
         {
           path: 'articles/edit/:id',
           name: 'AdminArticleEdit',
-          component: () => import('@/views/admin/ArticleEditorView.vue')
+          component: () => import('@/views/admin/ArticleEditorView.vue'),
+          meta: { title: '编辑文章' }
         },
         {
           path: 'tags',
           name: 'AdminTagList',
-          component: () => import('@/views/admin/TagListView.vue')
+          component: () => import('@/views/admin/TagListView.vue'),
+          meta: { title: '标签管理' }
         },
         {
           path: 'users',
           name: 'AdminUserList',
           component: () => import('@/views/admin/UserListView.vue'),
-          meta: { requiresAdmin: true }
+          meta: { requiresAdmin: true, title: '用户管理' }
         },
         {
           path: 'comments',
           name: 'AdminCommentReview',
           component: () => import('@/views/admin/CommentReviewView.vue'),
-          meta: { requiresAdmin: true }
+          meta: { requiresAdmin: true, title: '评论审核' }
         }
       ]
+    },
+    {
+      path: '/:pathMatch(.*)*',
+      name: 'NotFound',
+      component: () => import('@/views/NotFoundView.vue'),
+      meta: { title: '页面不存在' }
     }
   ]
 })
@@ -91,4 +104,12 @@ router.beforeEach((to, _from, next) => {
   }
 })
 
+// 全局后置钩子设置 meta
+router.afterEach((to) => {
+  const meta = to.meta as { title?: string; description?: string }
+  if (meta.title) {
+    setPageMeta({ title: meta.title, description: meta.description })
+  }
+})
+
 export default router
\ No newline at end of file