diff --git a/admin/src/App.vue b/admin/src/App.vue
index 9dcbf1d..1822bd1 100644
--- a/admin/src/App.vue
+++ b/admin/src/App.vue
@@ -27,7 +27,7 @@
 </template>
 
 <script setup>
-import { onMounted, ref, provide } from 'vue'
+import { onMounted, ref, provide, onBeforeUnmount } from 'vue'
 import { getToken, setToken, clearToken, apiPost } from './api'
 import Dashboard from './views/Dashboard.vue'
 import Users from './views/Users.vue'
@@ -43,6 +43,10 @@ const token = ref(getToken())
 const view = ref('dashboard')
 // 子页面跳转菜单（如看板→访问日志）
 const goto = (key) => { view.value = key }
+// 登录态过期：任何接口401 → 回登录框
+const onAuthExpired = () => { token.value = '' }
+onMounted(() => window.addEventListener('admin-auth-expired', onAuthExpired))
+onBeforeUnmount(() => window.removeEventListener('admin-auth-expired', onAuthExpired))
 provide('goto', goto)
 const username = ref(''), password = ref(''), busy = ref(false), error = ref('')
 
diff --git a/admin/src/api.js b/admin/src/api.js
index 6897e65..d0ef470 100644
--- a/admin/src/api.js
+++ b/admin/src/api.js
@@ -5,7 +5,14 @@ export function clearToken() { localStorage.removeItem(TOKEN_KEY) }
 
 export function apiGet(path) {
   return fetch(path, { headers: { Authorization: `Bearer ${getToken()}` } })
-    .then(r => r.json())
+    .then(r => {
+      if (r.status === 401) {
+        clearToken()
+        window.dispatchEvent(new CustomEvent('admin-auth-expired'))
+        throw new Error('登录已过期')
+      }
+      return r.json()
+    })
     .then(j => j.data !== undefined ? j.data : j)
     .catch(e => { throw new Error(e.message) })
 }
@@ -14,6 +21,11 @@ export function apiGet(path) {
 function handleResponse(r) {
   return r.json().then(j => {
     if (!r.ok) {
+      // 401=登录态过期：清token并通知全局弹登录框（否则面板停留空数据）
+      if (r.status === 401) {
+        clearToken()
+        window.dispatchEvent(new CustomEvent('admin-auth-expired'))
+      }
       throw new Error(j.error || j.message || `请求失败(${r.status})`)
     }
     return j