diff --git a/shierfeng-fastapi-frontend/scripts/verify-business-contract.mjs b/shierfeng-fastapi-frontend/scripts/verify-business-contract.mjs
index a6d42f0..4e931b3 100644
--- a/shierfeng-fastapi-frontend/scripts/verify-business-contract.mjs
+++ b/shierfeng-fastapi-frontend/scripts/verify-business-contract.mjs
@@ -3,6 +3,7 @@ import { lstat, readFile, realpath } from 'node:fs/promises'
 import { test } from 'node:test'
 import { fileURLToPath } from 'node:url'
 import path from 'node:path'
+import * as testBatchContext from '../src/utils/testBatchContext.js'
 
 const frontendRoot = fileURLToPath(new URL('..', import.meta.url))
 
@@ -837,30 +838,108 @@ function hasExpectedRequest(expectedRequest) {
 const source = (relativePath) => readFile(path.join(frontendRoot, relativePath), 'utf8')
 
 test('Web 测试模式统一附加请求头并通过路由重建清空页面状态', async () => {
-  const requestSource = await source('src/utils/request.js')
   const appMainSource = await source('src/layout/components/AppMain.vue')
   const navbarSource = await source('src/layout/components/Navbar.vue')
 
-  assert.match(requestSource, /X-Test-Batch-Id/)
-  assert.match(requestSource, /TEST_BATCH_UNAVAILABLE/)
   assert.match(appMainSource, /scopeVersion/)
   assert.match(navbarSource, /TestBatchModeSwitch/)
   assert.match(navbarSource, /测试数据/)
 })
 
 test('Web 测试批次上下文仅持久化 ID，登出清除 ID 且管理员标记严格来自后端布尔值', async () => {
-  const contextSource = await source('src/utils/testBatchContext.js')
   const storeSource = await source('src/store/modules/testBatch.js')
   const userSource = await source('src/store/modules/user.js')
 
-  assert.match(contextSource, /sessionStorage/)
-  assert.doesNotMatch(contextSource, /batchName|status|admin|permission/i)
   assert.match(storeSource, /getStoredTestBatchId/)
   assert.match(storeSource, /setStoredTestBatchId/)
   assert.match(storeSource, /clearStoredTestBatchId/)
   assert.match(userSource, /admin:\s*false/)
   assert.match(userSource, /this\.admin\s*=\s*user\.admin\s*===\s*true/)
-  assert.match(userSource, /clearStoredTestBatchId\(\)/)
+  assert.match(userSource, /logoutWithLocalCleanup/)
+})
+
+test('Web 测试批次真实上下文逻辑只在登录测试模式附加请求头，并对并发失效做一次回退', async () => {
+  const storage = new Map()
+  globalThis.sessionStorage = {
+    getItem: key => storage.get(key) || null,
+    setItem: (key, value) => storage.set(key, value),
+    removeItem: key => storage.delete(key)
+  }
+
+  const formalConfig = { headers: {} }
+  testBatchContext.applyTestBatchHeader(formalConfig, '', 'batch-1')
+  assert.deepEqual(formalConfig.headers, {})
+
+  const testConfig = { headers: {} }
+  testBatchContext.applyTestBatchHeader(testConfig, 'token', 'batch-1')
+  assert.equal(testConfig.headers['X-Test-Batch-Id'], 'batch-1')
+
+  testBatchContext.setStoredTestBatchId('batch-1')
+  let loadCount = 0
+  let leaveCount = 0
+  let notifyCount = 0
+  const loadStore = async () => {
+    loadCount += 1
+    await Promise.resolve()
+    return { leaveTestMode: () => { leaveCount += 1 } }
+  }
+  const recovery = {
+    loadStore,
+    notify: () => { notifyCount += 1 },
+    message: '测试批次不可用'
+  }
+  await Promise.all([
+    testBatchContext.recoverUnavailableTestBatch(recovery),
+    testBatchContext.recoverUnavailableTestBatch(recovery),
+    testBatchContext.recoverUnavailableTestBatch(recovery)
+  ])
+  assert.equal(loadCount, 1)
+  assert.equal(leaveCount, 1)
+  assert.equal(notifyCount, 1)
+  assert.equal(testBatchContext.getStoredTestBatchId(), '')
+
+  await testBatchContext.recoverUnavailableTestBatch(recovery)
+  assert.equal(loadCount, 2)
+  assert.equal(leaveCount, 2)
+  assert.equal(notifyCount, 2)
+})
+
+test('刷新失效批次复用统一回退提示，登出无论远端结果都清理管理员与批次上下文', async () => {
+  const storeSource = await source('src/store/modules/testBatch.js')
+  const userSource = await source('src/store/modules/user.js')
+  assert.match(storeSource, /recoverUnavailableTestBatch/)
+  assert.match(storeSource, /当前测试批次已不可用/)
+  assert.match(userSource, /logoutWithLocalCleanup/)
+
+  globalThis.sessionStorage.setItem('test-batch-id', 'batch-2')
+  const state = { admin: true }
+  await testBatchContext.logoutWithLocalCleanup(() => Promise.resolve('ok'), state)
+  assert.equal(state.admin, false)
+  assert.equal(testBatchContext.getStoredTestBatchId(), '')
+
+  globalThis.sessionStorage.setItem('test-batch-id', 'batch-3')
+  state.admin = true
+  const remoteError = new Error('远端登出失败')
+  await assert.rejects(
+    testBatchContext.logoutWithLocalCleanup(() => Promise.reject(remoteError), state),
+    remoteError
+  )
+  assert.equal(state.admin, false)
+  assert.equal(testBatchContext.getStoredTestBatchId(), '')
+})
+
+test('窄屏模式控件仍保留正式退出与测试批次切换入口', async () => {
+  const switchSource = await source('src/components/TestBatchModeSwitch/index.vue')
+  const navbarSource = await source('src/layout/components/Navbar.vue')
+  const mobileSection = switchSource.slice(switchSource.indexOf('@media screen and (max-width: 767px)'))
+  const navbarMobileSection = navbarSource.slice(navbarSource.indexOf('@media screen and (max-width: 767px)'))
+  assert.match(mobileSection, /\.mode-selector[\s\S]*\.batch-selector/)
+  assert.doesNotMatch(mobileSection, /display:\s*none/)
+  assert.match(mobileSection, /max-width:\s*48px/)
+  assert.match(mobileSection, /width:\s*72px/)
+  assert.match(mobileSection, /padding-right:\s*2px/)
+  assert.match(mobileSection, /padding-left:\s*2px/)
+  assert.match(navbarMobileSection, /\.test-batch-mode\s*\{\s*padding:\s*0/)
 })
 
 test('17 个页面的真实权限门禁逐项匹配独立硬编码契约', async () => {
diff --git a/shierfeng-fastapi-frontend/src/components/TestBatchModeSwitch/index.vue b/shierfeng-fastapi-frontend/src/components/TestBatchModeSwitch/index.vue
index e6390fc..ac00e53 100644
--- a/shierfeng-fastapi-frontend/src/components/TestBatchModeSwitch/index.vue
+++ b/shierfeng-fastapi-frontend/src/components/TestBatchModeSwitch/index.vue
@@ -82,7 +82,9 @@ onMounted(async () => {
   } catch (error) {
     testBatchState.options = []
     hasLoadError.value = true
-    ElMessage.error('测试批次选项加载失败')
+    if (error?.reason !== 'TEST_BATCH_UNAVAILABLE') {
+      ElMessage.error('测试批次选项加载失败')
+    }
   } finally {
     isLoading.value = false
   }
@@ -173,13 +175,22 @@ async function handleBatchSelect(batchId) {
 }
 
 @media screen and (max-width: 767px) {
-  .mode-selector,
-  .batch-selector {
-    display: none;
+  .mode-tag {
+    max-width: 48px;
   }
 
-  .mode-tag {
-    max-width: 116px;
+  .mode-selector {
+    gap: 0;
+  }
+
+  .batch-selector {
+    width: 72px;
+    flex-basis: 72px;
+  }
+
+  :deep(.mode-selector .el-radio-button__inner) {
+    padding-right: 2px;
+    padding-left: 2px;
   }
 }
 </style>
diff --git a/shierfeng-fastapi-frontend/src/layout/components/Navbar.vue b/shierfeng-fastapi-frontend/src/layout/components/Navbar.vue
index 951a372..e766a27 100644
--- a/shierfeng-fastapi-frontend/src/layout/components/Navbar.vue
+++ b/shierfeng-fastapi-frontend/src/layout/components/Navbar.vue
@@ -294,6 +294,10 @@ async function toggleTheme(event) {
 
 @media screen and (max-width: 767px) {
   .navbar .right-menu {
+    .test-batch-mode {
+      padding: 0;
+    }
+
     .avatar-container .avatar-wrapper .user-nickname {
       display: none;
     }
diff --git a/shierfeng-fastapi-frontend/src/store/modules/testBatch.js b/shierfeng-fastapi-frontend/src/store/modules/testBatch.js
index efb5361..c737f2e 100644
--- a/shierfeng-fastapi-frontend/src/store/modules/testBatch.js
+++ b/shierfeng-fastapi-frontend/src/store/modules/testBatch.js
@@ -1,8 +1,10 @@
 import { defineStore } from 'pinia'
+import { ElMessage } from 'element-plus'
 import { listAvailableTestBatches } from '@/api/system/testBatch'
 import {
   clearStoredTestBatchId,
   getStoredTestBatchId,
+  recoverUnavailableTestBatch,
   setStoredTestBatchId
 } from '@/utils/testBatchContext'
 
@@ -22,7 +24,11 @@ const useTestBatchStore = defineStore('testBatch', {
       this.options = Array.isArray(response.data) ? response.data : []
       const current = this.options.find(item => String(item.batchId) === String(this.currentBatchId))
       if (this.currentBatchId && (!current || current.status !== 'ACTIVE')) {
-        this.leaveTestMode()
+        await recoverUnavailableTestBatch({
+          loadStore: async () => this,
+          notify: message => ElMessage({ message, type: 'warning', duration: 5 * 1000 }),
+          message: '当前测试批次已不可用，已切回正式数据模式'
+        })
       } else {
         this.currentBatchName = current?.batchName || ''
       }
diff --git a/shierfeng-fastapi-frontend/src/store/modules/user.js b/shierfeng-fastapi-frontend/src/store/modules/user.js
index caa814e..a7706e5 100644
--- a/shierfeng-fastapi-frontend/src/store/modules/user.js
+++ b/shierfeng-fastapi-frontend/src/store/modules/user.js
@@ -4,7 +4,7 @@ import { login, logout, getInfo } from '@/api/login'
 import { getToken, setToken, removeToken } from '@/utils/auth'
 import { isHttp, isEmpty } from "@/utils/validate"
 import defAva from '@/assets/images/profile.jpg'
-import { clearStoredTestBatchId } from '@/utils/testBatchContext'
+import { logoutWithLocalCleanup } from '@/utils/testBatchContext'
 
 const useUserStore = defineStore(
   'user',
@@ -76,18 +76,11 @@ const useUserStore = defineStore(
       },
       // 退出系统
       logOut() {
-        return new Promise((resolve, reject) => {
-          logout(this.token).then(() => {
-            this.token = ''
-            this.roles = []
-            this.permissions = []
-            this.admin = false
-            removeToken()
-            clearStoredTestBatchId()
-            resolve()
-          }).catch(error => {
-            reject(error)
-          })
+        return logoutWithLocalCleanup(() => logout(this.token), this).finally(() => {
+          this.token = ''
+          this.roles = []
+          this.permissions = []
+          removeToken()
         })
       }
     }
diff --git a/shierfeng-fastapi-frontend/src/utils/request.js b/shierfeng-fastapi-frontend/src/utils/request.js
index ba48bd6..65366fe 100644
--- a/shierfeng-fastapi-frontend/src/utils/request.js
+++ b/shierfeng-fastapi-frontend/src/utils/request.js
@@ -6,7 +6,11 @@ import { tansParams, blobValidate } from '@/utils/shierfeng'
 import cache from '@/plugins/cache'
 import { saveAs } from 'file-saver'
 import useUserStore from '@/store/modules/user'
-import { clearStoredTestBatchId, getStoredTestBatchId } from '@/utils/testBatchContext'
+import {
+  applyTestBatchHeader,
+  getStoredTestBatchId,
+  recoverUnavailableTestBatch
+} from '@/utils/testBatchContext'
 import {
   decryptTransportErrorResponse,
   decryptTransportResponse,
@@ -22,11 +26,17 @@ export let isRelogin = { show: false };
 
 async function rejectUnavailableTestBatch(data) {
   const message = data.msg || '当前测试批次不可用，已切回正式数据模式'
-  clearStoredTestBatchId()
-  const { default: useTestBatchStore } = await import('@/store/modules/testBatch')
-  useTestBatchStore().leaveTestMode()
-  ElMessage({ message, type: 'error', duration: 5 * 1000 })
-  return Promise.reject(new Error(message))
+  await recoverUnavailableTestBatch({
+    loadStore: async () => {
+      const { default: useTestBatchStore } = await import('@/store/modules/testBatch')
+      return useTestBatchStore()
+    },
+    notify: recoveryMessage => ElMessage({ message: recoveryMessage, type: 'error', duration: 5 * 1000 }),
+    message
+  })
+  const error = new Error(message)
+  error.reason = data.reason
+  return Promise.reject(error)
 }
 
 function isTestBatchUnavailable(data) {
@@ -59,10 +69,7 @@ service.interceptors.request.use(async config => {
   if (getToken() && !isToken) {
     config.headers['Authorization'] = 'Bearer ' + getToken() // 让每个请求携带自定义token 请根据实际情况自行修改
   }
-  const testBatchId = getStoredTestBatchId()
-  if (getToken() && testBatchId) {
-    config.headers['X-Test-Batch-Id'] = String(testBatchId)
-  }
+  applyTestBatchHeader(config, getToken(), getStoredTestBatchId())
   if (!isRepeatSubmit && (config.method === 'post' || config.method === 'put')) {
     const requestObj = {
       url: config.url,
diff --git a/shierfeng-fastapi-frontend/src/utils/testBatchContext.js b/shierfeng-fastapi-frontend/src/utils/testBatchContext.js
index 32b8da1..efb771e 100644
--- a/shierfeng-fastapi-frontend/src/utils/testBatchContext.js
+++ b/shierfeng-fastapi-frontend/src/utils/testBatchContext.js
@@ -1,4 +1,5 @@
 const TEST_BATCH_STORAGE_KEY = 'test-batch-id'
+let unavailableBatchRecoveryPromise
 
 export function getStoredTestBatchId() {
   return sessionStorage.getItem(TEST_BATCH_STORAGE_KEY) || ''
@@ -11,3 +12,36 @@ export function setStoredTestBatchId(batchId) {
 export function clearStoredTestBatchId() {
   sessionStorage.removeItem(TEST_BATCH_STORAGE_KEY)
 }
+
+export function applyTestBatchHeader(config, token, batchId) {
+  if (token && batchId) {
+    config.headers = config.headers || {}
+    config.headers['X-Test-Batch-Id'] = String(batchId)
+  }
+  return config
+}
+
+export function clearLocalUserContext(state) {
+  state.admin = false
+  clearStoredTestBatchId()
+}
+
+export function logoutWithLocalCleanup(remoteLogout, state) {
+  return Promise.resolve().then(remoteLogout).finally(() => {
+    clearLocalUserContext(state)
+  })
+}
+
+export function recoverUnavailableTestBatch({ loadStore, notify, message }) {
+  if (!unavailableBatchRecoveryPromise) {
+    unavailableBatchRecoveryPromise = (async () => {
+      clearStoredTestBatchId()
+      const store = await loadStore()
+      store.leaveTestMode()
+      notify(message)
+    })().finally(() => {
+      unavailableBatchRecoveryPromise = undefined
+    })
+  }
+  return unavailableBatchRecoveryPromise
+}