优化

src/modules/auth/views/LoginView.vue

@@ -17,6 +17,7 @@ const router = useRouter()
 const auth = useAuthStore()
 const formRef = ref<FormInstance>()
 const loading = ref(false)
+const impersonationFailed = route.query.impersonation === 'failed'
 const form = reactive<LoginForm>({
   account: typeof route.query.account === 'string'
     ? route.query.account
@@ -77,6 +78,13 @@ function showResetHint() {
         <h2 id="login-title">登录客户工作台</h2>
         <p>使用企业账号登录，继续管理您的跨境物流业务。</p>
       </div>
+      <el-alert
+        v-if="impersonationFailed"
+        title="代登录失败或授权已失效，请返回管理后台重新发起"
+        type="error"
+        :closable="false"
+        show-icon
+      />
       <div class="auth-account-note">企业注册成功后即可登录；提交订单前需完成企业资料审核。</div>
         <el-form ref="formRef" :model="form" :rules="rules" label-position="top" size="large" @submit.prevent="submit">
           <el-form-item label="用户名" prop="account">