diff --git a/src/layouts/components/DefaultLayout.vue b/src/layouts/components/DefaultLayout.vue
index f1031411..404562d4 100644
--- a/src/layouts/components/DefaultLayout.vue
+++ b/src/layouts/components/DefaultLayout.vue
@@ -22,12 +22,15 @@ const { t } = useI18n()
 // 用户 Store
 const userStore = useUserStore()
 
-// 是否超级用户
-let superUser = userStore.superUser
+// 响应式的超级用户状态
+const superUser = computed(() => userStore.superUser)
 
 // ShortcutBar 引用
 const shortcutBarRef = ref<InstanceType<typeof ShortcutBar> | null>(null)
 
+// 未读消息检查状态
+const hasCheckedUnread = ref(false)
+
 // 获取用户权限信息
 const userPermissions = computed(() => ({
   is_superuser: userStore.superUser,
@@ -64,10 +67,12 @@ function goBack() {
 
 // 检查未读消息并自动打开消息弹窗
 async function checkUnreadMessages() {
-  if (!superUser) {
-    return // 只有超级用户才能看到消息
+  if (!superUser.value || hasCheckedUnread.value) {
+    return // 只有超级用户才能看到消息，且每次会话只检查一次
   }
 
+  hasCheckedUnread.value = true
+
   try {
     const unreadCount = await checkUnreadOnStartup()
 
@@ -97,6 +102,20 @@ async function waitAndOpenMessageDialog() {
   }
 }
 
+// 监听用户状态变化
+watch(
+  superUser,
+  newValue => {
+    if (newValue && !hasCheckedUnread.value) {
+      // 用户状态变为超级用户且还没检查过未读消息时，延迟检查
+      setTimeout(() => {
+        checkUnreadMessages()
+      }, 1000)
+    }
+  },
+  { immediate: true },
+)
+
 onMounted(() => {
   // 获取菜单列表
   startMenus.value = getMenuList(t('menu.start'))
@@ -109,7 +128,7 @@ onMounted(() => {
   nextTick(() => {
     setTimeout(() => {
       checkUnreadMessages()
-    }, 500)
+    }, 2000) // 增加延迟时间到2秒
   })
 })
 </script>
diff --git a/src/utils/badge.ts b/src/utils/badge.ts
index 2a04db18..4ae95eb6 100644
--- a/src/utils/badge.ts
+++ b/src/utils/badge.ts
@@ -50,23 +50,34 @@ export async function waitForServiceWorker(): Promise<ServiceWorker | null> {
 // 应用启动时检查未读消息数量
 export async function checkUnreadOnStartup(): Promise<number> {
   try {
+    // 对于PWA应用，冷启动时需要更长的等待时间
+    const isPWAColdStart = !navigator.serviceWorker.controller
+    const initialDelay = isPWAColdStart ? 3000 : 1000
+
+    // 初始延迟，等待应用完全启动
+    await new Promise(resolve => setTimeout(resolve, initialDelay))
+
     // 等待Service Worker准备就绪
     const sw = await waitForServiceWorker()
     if (!sw) {
       return 0
     }
 
-    // 延迟1秒确保Service Worker完全准备好
+    // 额外延迟确保Service Worker完全准备好
     await new Promise(resolve => setTimeout(resolve, 1000))
 
     // 重试机制获取未读消息数量
-    for (let i = 0; i < 3; i++) {
+    for (let i = 0; i < 5; i++) {
+      // 增加重试次数
       try {
         const unreadCount = await getUnreadCount()
-        return unreadCount
+        if (unreadCount >= 0) {
+          // 确保返回有效数字
+          return unreadCount
+        }
       } catch (error) {
-        if (i === 2) throw error // 最后一次重试失败则抛出错误
-        await new Promise(resolve => setTimeout(resolve, 500)) // 等待500ms后重试
+        if (i === 4) throw error // 最后一次重试失败则抛出错误
+        await new Promise(resolve => setTimeout(resolve, 1000 * (i + 1))) // 递增等待时间
       }
     }