diff --git a/web/admin/src/router/index.ts b/web/admin/src/router/index.ts
index caffbaf..7c8f2cf 100644
--- a/web/admin/src/router/index.ts
+++ b/web/admin/src/router/index.ts
@@ -79,7 +79,8 @@ router.beforeEach(async (to) => {
 
   // Token expired and no refresh token available — force login
   if (shouldRefresh() && !getRefreshToken()) {
-    authStore.logout()
+    // 同步清空登录数据后再跳转，避免 async 登出未完成时登录页把用户又跳回系统
+    authStore.logoutLocal()
     return { name: 'AdminLogin', query: { redirect: to.fullPath } }
   }
 
diff --git a/web/admin/src/stores/auth.ts b/web/admin/src/stores/auth.ts
index 5e44033..87d9318 100644
--- a/web/admin/src/stores/auth.ts
+++ b/web/admin/src/stores/auth.ts
@@ -1,6 +1,6 @@
 import { defineStore } from 'pinia'
 import { ref, computed } from 'vue'
-import request, { setTokens, clearTokens, onTokenRefreshed, setRememberMe, getRememberMe } from '@/utils/request'
+import request, { setTokens, clearTokens, onTokenRefreshed, onAuthExpired, setRememberMe, getRememberMe } from '@/utils/request'
 import { setAdminSession, clearAdminSession, ADMIN_ROLES } from '@/utils/permission'
 
 export interface AdminUser {
@@ -113,21 +113,32 @@ export const useAuthStore = defineStore('admin-auth', () => {
     applySession(loginData)
   }
 
+  /** 同步清空全部登录数据（响应式状态 + token storage + session 持久化），不调用后端 */
+  function clearAuthState(): void {
+    token.value = null
+    refreshToken.value = null
+    expiresAt.value = null
+    user.value = null
+    permissions.value = []
+    pendingAgreements.value = []
+
+    clearTokens()
+    clearAdminSession()
+    localStorage.removeItem(STORE_KEY)
+  }
+
+  /** 同步本地登出（仅清前端，不通知后端），用于路由守卫等需要立即生效的场景 */
+  function logoutLocal(): void {
+    clearAuthState()
+  }
+
   async function logout(): Promise<void> {
     try {
       await request.post('/admin/auth/logout')
     } catch {
       // best-effort
     }
-    token.value = null
-    refreshToken.value = null
-    expiresAt.value = null
-    user.value = null
-    permissions.value = []
-
-    clearTokens()
-    clearAdminSession()
-    localStorage.removeItem(STORE_KEY)
+    clearAuthState()
   }
 
   async function refreshTokens(): Promise<void> {
@@ -149,6 +160,12 @@ export const useAuthStore = defineStore('admin-auth', () => {
     persist()
   })
 
+  // Axios 拦截器在 401 认证彻底失效时回调，由 store 清空全部登录数据
+  // （必须先清后跳，否则路由守卫会从持久化数据恢复登录态，造成登录页↔系统死循环）
+  onAuthExpired(() => {
+    clearAuthState()
+  })
+
   function clearPendingAgreements(): void {
     pendingAgreements.value = []
   }
@@ -166,6 +183,7 @@ export const useAuthStore = defineStore('admin-auth', () => {
     login,
     applyTokensFrom2FA,
     logout,
+    logoutLocal,
     refreshTokens,
     loadFromStorage,
     clearPendingAgreements,
diff --git a/web/admin/src/utils/request.ts b/web/admin/src/utils/request.ts
index 112a7ba..d84bc98 100644
--- a/web/admin/src/utils/request.ts
+++ b/web/admin/src/utils/request.ts
@@ -27,6 +27,9 @@ const EXPIRES_AT_KEY = 'admin_token_expires_at'
 const REMEMBER_ME_KEY = 'admin_remember_me'
 const TOKEN_BUFFER_SECONDS = 60
 
+// 并发 401 时只清理并跳转一次；登录/刷新成功后由 setTokens 复位
+let isLoggingOut = false
+
 // Dynamic storage selection based on "remember me" preference
 function getStorage(): Storage {
   // Check user's "remember me" preference (defaults to true for backward compatibility)
@@ -45,6 +48,8 @@ export function getRememberMe(): boolean {
 }
 
 export function setTokens(tokens: TokenPair): void {
+  // 登录/刷新成功，复位登出节流标志，保证下次失效仍可跳转登录页
+  isLoggingOut = false
   const storage = getStorage()
   storage.setItem(ACCESS_TOKEN_KEY, tokens.accessToken)
   storage.setItem(REFRESH_TOKEN_KEY, tokens.refreshToken)
@@ -94,6 +99,38 @@ export function onTokenRefreshed(cb: (tokens: TokenPair) => void): void {
   tokenRefreshedCallback = cb
 }
 
+// 认证彻底失效时由 auth store 注册的清理回调（清空响应式状态与持久化登录数据）
+let authExpiredCallback: (() => void) | null = null
+
+export function onAuthExpired(cb: () => void): void {
+  authExpiredCallback = cb
+}
+
+/** 取登录失效后应回跳的路径（排除登录页自身） */
+function getLoginRedirectPath(): string {
+  const hash = window.location.hash || ''
+  const path = hash.startsWith('#') ? hash.slice(1) : hash
+  const clean = path.split('?')[0]
+  if (!clean || clean.startsWith('/admin/login')) return '/admin'
+  return clean
+}
+
+/**
+ * 认证彻底失效（401 且无法刷新）：先清空全部登录数据，再跳转登录页。
+ * 并发 401 只执行一次清理与跳转，避免重复弹窗。
+ */
+function handleAuthExpired(): void {
+  if (isLoggingOut) return
+  isLoggingOut = true
+  rejectPending(new Error('authentication expired'))
+  // 由 auth store 清空响应式状态与持久化数据（store 自身负责全部清理）
+  authExpiredCallback?.()
+  // 兜底清除 token storage
+  clearTokens()
+  Message.warning('登录状态已失效，请重新登录')
+  window.location.hash = `#/admin/login?redirect=${encodeURIComponent(getLoginRedirectPath())}`
+}
+
 function replayPending(token: string): void {
   pendingRequests.forEach(({ resolve }) => resolve(token))
   pendingRequests = []
@@ -151,10 +188,7 @@ request.interceptors.request.use(
           const newTokens = await doRefresh()
           replayPending(newTokens.accessToken)
         } catch (error) {
-          rejectPending(error)
-          clearTokens()
-          showRequestError(error, config)
-          window.location.hash = '#/admin/login'
+          handleAuthExpired()
           return Promise.reject(error)
         } finally {
           isRefreshing = false
@@ -263,10 +297,7 @@ request.interceptors.response.use(
       originalRequest.headers.Authorization = `Bearer ${newTokens.accessToken}`
       return request(originalRequest)
     } catch (refreshError) {
-      rejectPending(refreshError)
-      clearTokens()
-      showRequestError(refreshError, originalRequest)
-      window.location.hash = '#/admin/login'
+      handleAuthExpired()
       return Promise.reject(refreshError)
     } finally {
       isRefreshing = false
diff --git a/web/tenant/src/router/index.ts b/web/tenant/src/router/index.ts
index c2a7b82..d0c54fe 100644
--- a/web/tenant/src/router/index.ts
+++ b/web/tenant/src/router/index.ts
@@ -62,7 +62,8 @@ router.beforeEach(async (to) => {
 
 	// Token expired and no refresh token available — force login
 	if (shouldRefresh() && !getRefreshToken()) {
-		tenantAuthStore.logout()
+		// 同步清空登录数据后再跳转，避免 async 登出未完成时登录页把用户又跳回系统
+		tenantAuthStore.logoutLocal()
 		return { name: 'TenantLogin', query: { redirect: to.fullPath } }
 	}
 
diff --git a/web/tenant/src/stores/tenant-auth.ts b/web/tenant/src/stores/tenant-auth.ts
index d086b8f..146e24a 100644
--- a/web/tenant/src/stores/tenant-auth.ts
+++ b/web/tenant/src/stores/tenant-auth.ts
@@ -1,6 +1,6 @@
 import { defineStore } from 'pinia'
 import { ref, computed } from 'vue'
-import request, { setTokens, clearTokens, onTokenRefreshed, setRememberMe, getRememberMe } from '@/utils/request'
+import request, { setTokens, clearTokens, onTokenRefreshed, onAuthExpired, setRememberMe, getRememberMe } from '@/utils/request'
 import { setTenantSession, clearTenantSession, TENANT_ROLES } from '@/utils/permission'
 
 export interface TenantInfo {
@@ -164,24 +164,35 @@ export const useTenantAuthStore = defineStore('tenant-auth', () => {
     }
   }
 
-  async function logout(): Promise<void> {
-    try {
-      await request.post('/tenant/auth/logout')
-    } catch {
-      // best-effort
-    }
+  /** 同步清空全部登录数据（响应式状态 + token storage + session 持久化），不调用后端 */
+  function clearAuthState(): void {
     token.value = null
     refreshToken.value = null
     expiresAt.value = null
     tenant.value = null
     user.value = null
     permissions.value = []
+    pendingAgreements.value = []
 
     clearTokens()
     clearTenantSession()
     localStorage.removeItem(STORE_KEY)
   }
 
+  /** 同步本地登出（仅清前端，不通知后端），用于路由守卫等需要立即生效的场景 */
+  function logoutLocal(): void {
+    clearAuthState()
+  }
+
+  async function logout(): Promise<void> {
+    try {
+      await request.post('/tenant/auth/logout')
+    } catch {
+      // best-effort
+    }
+    clearAuthState()
+  }
+
   async function refreshTokens(): Promise<void> {
     const { data } = await request.post<{ data: AuthResponse }>('/tenant/auth/refresh', {
       refresh_token: refreshToken.value,
@@ -201,6 +212,12 @@ export const useTenantAuthStore = defineStore('tenant-auth', () => {
     persist()
   })
 
+  // Axios 拦截器在 401 认证彻底失效时回调，由 store 清空全部登录数据
+  // （必须先清后跳，否则路由守卫会从持久化数据恢复登录态，造成登录页↔系统死循环）
+  onAuthExpired(() => {
+    clearAuthState()
+  })
+
   function clearPendingAgreements(): void {
     pendingAgreements.value = []
   }
@@ -221,6 +238,7 @@ export const useTenantAuthStore = defineStore('tenant-auth', () => {
     register,
     refreshOrgInfo,
     logout,
+    logoutLocal,
     refreshTokens,
     loadFromStorage,
     clearPendingAgreements,
diff --git a/web/tenant/src/utils/request.ts b/web/tenant/src/utils/request.ts
index c585d6e..0f046fd 100644
--- a/web/tenant/src/utils/request.ts
+++ b/web/tenant/src/utils/request.ts
@@ -27,6 +27,9 @@ const EXPIRES_AT_KEY = 'tenant_token_expires_at'
 const REMEMBER_ME_KEY = 'tenant_remember_me'
 const TOKEN_BUFFER_SECONDS = 60
 
+// 并发 401 时只清理并跳转一次；登录/刷新成功后由 setTokens 复位
+let isLoggingOut = false
+
 // Dynamic storage selection based on "remember me" preference
 function getStorage(): Storage {
   // Check user's "remember me" preference (defaults to true for backward compatibility)
@@ -45,6 +48,8 @@ export function getRememberMe(): boolean {
 }
 
 export function setTokens(tokens: TokenPair): void {
+  // 登录/刷新成功，复位登出节流标志，保证下次失效仍可跳转登录页
+  isLoggingOut = false
   const storage = getStorage()
   storage.setItem(ACCESS_TOKEN_KEY, tokens.accessToken)
   storage.setItem(REFRESH_TOKEN_KEY, tokens.refreshToken)
@@ -94,6 +99,38 @@ export function onTokenRefreshed(cb: (tokens: TokenPair) => void): void {
   tokenRefreshedCallback = cb
 }
 
+// 认证彻底失效时由 tenant auth store 注册的清理回调（清空响应式状态与持久化登录数据）
+let authExpiredCallback: (() => void) | null = null
+
+export function onAuthExpired(cb: () => void): void {
+  authExpiredCallback = cb
+}
+
+/** 取登录失效后应回跳的路径（排除登录页自身） */
+function getLoginRedirectPath(): string {
+  const hash = window.location.hash || ''
+  const path = hash.startsWith('#') ? hash.slice(1) : hash
+  const clean = path.split('?')[0]
+  if (!clean || clean.startsWith('/tenant/login')) return '/tenant/dashboard'
+  return clean
+}
+
+/**
+ * 认证彻底失效（401 且无法刷新）：先清空全部登录数据，再跳转登录页。
+ * 并发 401 只执行一次清理与跳转，避免重复弹窗。
+ */
+function handleAuthExpired(): void {
+  if (isLoggingOut) return
+  isLoggingOut = true
+  rejectPending(new Error('authentication expired'))
+  // 由 tenant auth store 清空响应式状态与持久化数据（store 自身负责全部清理）
+  authExpiredCallback?.()
+  // 兜底清除 token storage
+  clearTokens()
+  toast.warning('登录状态已失效，请重新登录')
+  window.location.hash = `#/tenant/login?redirect=${encodeURIComponent(getLoginRedirectPath())}`
+}
+
 function replayPending(token: string): void {
   pendingRequests.forEach(({ resolve }) => resolve(token))
   pendingRequests = []
@@ -170,10 +207,7 @@ request.interceptors.request.use(
           const newTokens = await doRefresh()
           replayPending(newTokens.accessToken)
         } catch (error) {
-          rejectPending(error)
-          clearTokens()
-          showRequestError(error, config)
-          window.location.hash = '#/tenant/login'
+          handleAuthExpired()
           return Promise.reject(error)
         } finally {
           isRefreshing = false
@@ -291,10 +325,7 @@ request.interceptors.response.use(
       originalRequest.headers.Authorization = `Bearer ${newTokens.accessToken}`
       return request(originalRequest)
     } catch (refreshError) {
-      rejectPending(refreshError)
-      clearTokens()
-      showRequestError(refreshError, originalRequest)
-      window.location.hash = '#/tenant/login'
+      handleAuthExpired()
       return Promise.reject(refreshError)
     } finally {
       isRefreshing = false