diff --git a/shierfeng-fastapi-frontend/scripts/verify-business-contract.mjs b/shierfeng-fastapi-frontend/scripts/verify-business-contract.mjs
index caab020..c302f57 100644
--- a/shierfeng-fastapi-frontend/scripts/verify-business-contract.mjs
+++ b/shierfeng-fastapi-frontend/scripts/verify-business-contract.mjs
@@ -2485,3 +2485,61 @@ test('测试批次管理与旧数据纳入遵守 root、权限和预览提交契
     assert.doesNotMatch(source, /TestBatchAdoptionDialog/, `${reportPath} 不得提供纳入入口`)
   }
 })
+
+test('测试批次授权、清理和对话框异步状态拒绝错误目标与过期会话', async () => {
+  const managementPath = 'src/views/system/testBatch/index.vue'
+  const management = await readFile(path.join(frontendRoot, managementPath), 'utf8')
+  const parseAssignedUserIds = Function(`return (${extractNamedFunction(management, 'parseAssignedUserIds')})`)()
+  const shouldLeaveTestMode = Function(`return (${extractNamedFunction(management, 'shouldLeaveTestMode')})`)()
+
+  assert.deepEqual(parseAssignedUserIds(''), { valid: true, userIds: [] }, '空输入是显式移除全部授权')
+  assert.deepEqual(parseAssignedUserIds('1, 2,1'), { valid: true, userIds: [1, 2] })
+  for (const invalidInput of ['1,abc,2', '1,,2', '1,', '0', '-1', '1.5']) {
+    assert.deepEqual(parseAssignedUserIds(invalidInput), { valid: false, userIds: [] }, `${invalidInput} 必须整体拒绝`)
+  }
+  assert.equal(shouldLeaveTestMode('12', 12), true, '仅相同批次清理后退出测试模式')
+  assert.equal(shouldLeaveTestMode('13', 12), false, '清理其他批次不得退出当前测试模式')
+  assert.equal(shouldLeaveTestMode('', 12), false)
+
+  assert.doesNotMatch(management, /row\.userCount/, '列表 VO 未声明 userCount，禁止直接消费')
+  assert.match(management, /let listRequestVersion = 0/)
+  assert.match(management, /function hydrateParticipantCounts\(/)
+  assert.match(management, /participantState:\s*['"]loading['"]/, '详情 hydration 前必须显式 loading')
+  assert.match(management, /participantState:\s*['"]error['"]/, '单个详情失败必须展示明确失败状态')
+  assert.match(management, /userIds\.length/, '参与人数必须来自详情已声明的 userIds')
+  assert.match(management, /function isCurrentListRequest\(listContext\)[\s\S]*?listContext\.version === listRequestVersion/)
+
+  assert.match(management, /const detailLoaded = ref\(false\)/)
+  assert.match(management, /let assignSession = 0/)
+  assert.match(management, /function isCurrentAssignContext\(context\)[\s\S]*?context\.session === assignSession[\s\S]*?context\.batchId === assignRequestBatchId\.value/)
+  const openAssignSource = extractNamedFunction(management, 'openAssign')
+  assert.match(openAssignSource, /detailLoaded\.value = false/)
+  assert.match(openAssignSource, /if \(!isCurrentAssignContext\(context\)\) return/)
+  const submitAssignSource = extractNamedFunction(management, 'submitAssign')
+  assert.match(submitAssignSource, /if \(assignSubmitting\.value \|\| !detailLoaded\.value \|\| !assignBatch\.value\) return/)
+  assert.match(submitAssignSource, /const parsed = parseAssignedUserIds\(assignedUserIds\.value\)/)
+  assert.match(submitAssignSource, /if \(!parsed\.valid\)/)
+  assert.match(submitAssignSource, /if \(!isCurrentAssignContext\(context\)\) return/)
+  assert.match(management, /function resetAssignDialog\(\)[\s\S]*?assignSession \+= 1[\s\S]*?assignBatch\.value = null[\s\S]*?detailLoaded\.value = false/)
+  assert.match(management, /:disabled="assignLoading \|\| !detailLoaded \|\| assignSubmitting"/)
+  assert.match(management, /if \(shouldLeaveTestMode\(testBatchStore\.currentBatchId, purgeBatch\.value\.batchId\)\) \{\s*testBatchStore\.leaveTestMode\(\)/)
+  assert.match(management, /class="test-batch-dialog"/)
+  assert.match(management, /:column="descriptionColumns"/)
+  assert.match(management, /max-height:\s*90vh/)
+  assert.match(management, /overflow-y:\s*auto/)
+
+  const adoptionPath = 'src/components/TestBatchAdoptionDialog/index.vue'
+  const adoption = await readFile(path.join(frontendRoot, adoptionPath), 'utf8')
+  assert.match(adoption, /let dialogSession = 0/)
+  assert.match(adoption, /let optionsRequestVersion = 0/)
+  assert.match(adoption, /function isCurrentOptionsRequest\(context\)[\s\S]*?context\.session === dialogSession[\s\S]*?context\.version === optionsRequestVersion[\s\S]*?visible\.value/)
+  const loadBatchesSource = extractNamedFunction(adoption, 'loadBatches')
+  for (const callback of ['then', 'catch', 'finally']) {
+    assert.match(loadBatchesSource, new RegExp(`\\.${callback}\\([\\s\\S]*?if \\(!isCurrentOptionsRequest\\(context\\)\\) return`), `options ${callback} 必须拒绝过期会话`)
+  }
+  assert.match(adoption, /function resetState\(\)[\s\S]*?dialogSession \+= 1[\s\S]*?optionsRequestVersion \+= 1/)
+  assert.match(adoption, /class="test-batch-adoption-dialog"/)
+  assert.match(adoption, /:column="descriptionColumns"/)
+  assert.match(adoption, /max-height:\s*90vh/)
+  assert.match(adoption, /overflow-y:\s*auto/)
+})
diff --git a/shierfeng-fastapi-frontend/src/components/TestBatchAdoptionDialog/index.vue b/shierfeng-fastapi-frontend/src/components/TestBatchAdoptionDialog/index.vue
index aa18312..bf7622e 100644
--- a/shierfeng-fastapi-frontend/src/components/TestBatchAdoptionDialog/index.vue
+++ b/shierfeng-fastapi-frontend/src/components/TestBatchAdoptionDialog/index.vue
@@ -1,6 +1,7 @@
 <template>
   <el-dialog
     v-model="visible"
+    class="test-batch-adoption-dialog"
     title="纳入测试批次"
     width="min(820px, 94vw)"
     top="5vh"
@@ -35,7 +36,7 @@
     <el-skeleton v-if="previewLoading" :rows="5" animated />
     <el-empty v-else-if="!preview && !errorMessage && !batchLoading" description="暂无可预览的范围" :image-size="72" />
     <template v-else-if="preview">
-      <el-descriptions :column="2" border size="small" class="mb8">
+      <el-descriptions :column="descriptionColumns" border size="small" class="mb8">
         <el-descriptions-item label="目标批次">{{ preview.batchName }}</el-descriptions-item>
         <el-descriptions-item label="影响总数">{{ preview.totalCount }}</el-descriptions-item>
       </el-descriptions>
@@ -84,6 +85,9 @@ const batchId = ref(undefined)
 const preview = ref(null)
 const previewToken = ref('')
 const batchName = ref('')
+const descriptionColumns = ref(2)
+let dialogSession = 0
+let optionsRequestVersion = 0
 let requestVersion = 0
 
 const roots = computed(() => [{
@@ -103,6 +107,8 @@ function invalidatePreview() {
 }
 
 function resetState() {
+  dialogSession += 1
+  optionsRequestVersion += 1
   invalidatePreview()
   batchLoading.value = false
   submitting.value = false
@@ -111,6 +117,14 @@ function resetState() {
   batchId.value = undefined
 }
 
+function updateDescriptionColumns() { descriptionColumns.value = window.innerWidth <= 767 ? 1 : 2 }
+function isCurrentOptionsRequest(context) {
+  return context.session === dialogSession && context.version === optionsRequestVersion && visible.value
+}
+function isCurrentPreviewRequest(context) {
+  return context.session === dialogSession && context.version === requestVersion && context.batchId === batchId.value && visible.value
+}
+
 function close() {
   if (!submitting.value) visible.value = false
 }
@@ -134,22 +148,21 @@ function requestPreview() {
     return
   }
   invalidatePreview()
-  const currentVersion = ++requestVersion
-  const targetBatchId = batchId.value
+  const context = { session: dialogSession, version: ++requestVersion, batchId: batchId.value }
   previewLoading.value = true
   errorMessage.value = ''
-  previewTestBatchAdoption(targetBatchId, { roots: roots.value }).then((response) => {
-    if (currentVersion !== requestVersion || targetBatchId !== batchId.value) return
+  previewTestBatchAdoption(context.batchId, { roots: roots.value }).then((response) => {
+    if (!isCurrentPreviewRequest(context)) return
     const data = response.data || {}
     if (!data.previewToken || !data.batchName) throw new Error('预览响应不完整')
     preview.value = normalizePreview(data)
     previewToken.value = data.previewToken
   }).catch(() => {
-    if (currentVersion !== requestVersion || targetBatchId !== batchId.value) return
+    if (!isCurrentPreviewRequest(context)) return
     invalidatePreview()
     errorMessage.value = '预览已失效或目标批次不可用，请重新预览'
   }).finally(() => {
-    if (currentVersion === requestVersion && targetBatchId === batchId.value) previewLoading.value = false
+    if (isCurrentPreviewRequest(context)) previewLoading.value = false
   })
 }
 
@@ -159,9 +172,11 @@ function handleBatchChange() {
 }
 
 function loadBatches() {
+  const context = { session: dialogSession, version: ++optionsRequestVersion }
   batchLoading.value = true
   errorMessage.value = ''
   return listAvailableTestBatches().then((response) => {
+    if (!isCurrentOptionsRequest(context)) return
     activeBatches.value = (Array.isArray(response.data) ? response.data : []).filter((item) => item.status === 'ACTIVE')
     batchId.value = activeBatches.value[0]?.batchId
     if (!batchId.value) {
@@ -170,10 +185,12 @@ function loadBatches() {
     }
     requestPreview()
   }).catch(() => {
+    if (!isCurrentOptionsRequest(context)) return
     activeBatches.value = []
     batchId.value = undefined
     errorMessage.value = '测试批次加载失败，请稍后重试'
   }).finally(() => {
+    if (!isCurrentOptionsRequest(context)) return
     batchLoading.value = false
   })
 }
@@ -185,6 +202,7 @@ function open() {
   }
   resetState()
   visible.value = true
+  updateDescriptionColumns()
   loadBatches()
 }
 
@@ -211,10 +229,15 @@ watch(() => props.resourceIds, () => {
   if (visible.value) invalidatePreview()
 }, { deep: true })
 
+onMounted(() => window.addEventListener('resize', updateDescriptionColumns))
+onBeforeUnmount(() => window.removeEventListener('resize', updateDescriptionColumns))
+
 defineExpose({ open })
 </script>
 
 <style scoped>
 .impact-keys { display: block; overflow-wrap: anywhere; white-space: normal; }
 .confirm-form { margin-top: 12px; }
+:global(.test-batch-adoption-dialog) { display:flex; flex-direction:column; max-height:90vh; }
+:global(.test-batch-adoption-dialog .el-dialog__body) { flex:1; min-height:0; overflow-y:auto; }
 </style>
diff --git a/shierfeng-fastapi-frontend/src/views/system/testBatch/index.vue b/shierfeng-fastapi-frontend/src/views/system/testBatch/index.vue
index 279acc9..d52657d 100644
--- a/shierfeng-fastapi-frontend/src/views/system/testBatch/index.vue
+++ b/shierfeng-fastapi-frontend/src/views/system/testBatch/index.vue
@@ -16,7 +16,11 @@
         <template #default="scope"><el-tag :type="statusType(scope.row.status)">{{ scope.row.status }}</el-tag></template>
       </el-table-column>
       <el-table-column label="参与用户" min-width="100" align="center">
-        <template #default="scope">{{ scope.row.userCount ?? '-' }}</template>
+        <template #default="scope">
+          <span v-if="scope.row.participantState === 'ready'">{{ scope.row.participantCount }}</span>
+          <el-tag v-else-if="scope.row.participantState === 'loading'" type="info" size="small">加载中</el-tag>
+          <span v-else class="participant-error">加载失败</span>
+        </template>
       </el-table-column>
       <el-table-column label="创建时间" prop="createTime" width="180"><template #default="scope">{{ parseTime(scope.row.createTime) }}</template></el-table-column>
       <el-table-column label="关闭时间" prop="closedAt" width="180"><template #default="scope">{{ parseTime(scope.row.closedAt) }}</template></el-table-column>
@@ -34,7 +38,7 @@
     </el-table>
     <pagination v-show="total > 0" :total="total" v-model:page="queryParams.pageNum" v-model:limit="queryParams.pageSize" @pagination="getList" />
 
-    <el-dialog v-model="formVisible" :title="form.batchId ? '编辑测试批次' : '创建测试批次'" width="min(560px, 92vw)" append-to-body :close-on-click-modal="!formSubmitting" :close-on-press-escape="!formSubmitting" :show-close="!formSubmitting">
+    <el-dialog v-model="formVisible" class="test-batch-dialog" :title="form.batchId ? '编辑测试批次' : '创建测试批次'" width="min(560px, 92vw)" append-to-body :close-on-click-modal="!formSubmitting" :close-on-press-escape="!formSubmitting" :show-close="!formSubmitting">
       <el-alert v-if="formError" :title="formError" type="error" :closable="false" show-icon class="mb8" />
       <el-form ref="formRef" :model="form" :rules="formRules" label-width="90px">
         <el-form-item label="批次名称" prop="batchName"><el-input v-model="form.batchName" :disabled="Boolean(form.batchId) || formSubmitting" maxlength="100" /></el-form-item>
@@ -43,21 +47,21 @@
       <template #footer><el-button :disabled="formSubmitting" @click="formVisible = false">取消</el-button><el-button type="primary" :loading="formSubmitting" @click="submitForm">确定</el-button></template>
     </el-dialog>
 
-    <el-dialog v-model="assignVisible" title="授权测试批次用户" width="min(620px, 92vw)" append-to-body :close-on-click-modal="!assignSubmitting" :close-on-press-escape="!assignSubmitting" :show-close="!assignSubmitting">
+    <el-dialog v-model="assignVisible" class="test-batch-dialog" title="授权测试批次用户" width="min(620px, 92vw)" append-to-body :close-on-click-modal="!assignSubmitting" :close-on-press-escape="!assignSubmitting" :show-close="!assignSubmitting" @closed="resetAssignDialog">
       <el-alert v-if="assignError" :title="assignError" type="error" :closable="false" show-icon class="mb8" />
       <el-skeleton v-if="assignLoading" :rows="3" animated />
       <el-form v-else label-width="100px">
         <el-form-item label="批次">{{ assignBatch?.batchName }}</el-form-item>
         <el-form-item label="用户 ID"><el-input v-model="assignedUserIds" :disabled="assignSubmitting" placeholder="多个 ID 用英文逗号分隔；留空将取消全部授权" /></el-form-item>
       </el-form>
-      <template #footer><el-button :disabled="assignSubmitting" @click="assignVisible = false">取消</el-button><el-button type="primary" :loading="assignSubmitting" :disabled="assignLoading" @click="submitAssign">保存授权</el-button></template>
+      <template #footer><el-button :disabled="assignSubmitting" @click="assignVisible = false">取消</el-button><el-button type="primary" :loading="assignSubmitting" :disabled="assignLoading || !detailLoaded || assignSubmitting" @click="submitAssign">保存授权</el-button></template>
     </el-dialog>
 
-    <el-dialog v-model="purgeVisible" title="清理测试批次" width="min(860px, 94vw)" top="5vh" append-to-body :close-on-click-modal="!purgeSubmitting" :close-on-press-escape="!purgeSubmitting" :show-close="!purgeSubmitting">
+    <el-dialog v-model="purgeVisible" class="test-batch-dialog" title="清理测试批次" width="min(860px, 94vw)" top="5vh" append-to-body :close-on-click-modal="!purgeSubmitting" :close-on-press-escape="!purgeSubmitting" :show-close="!purgeSubmitting" @closed="resetPurgeDialog">
       <el-alert v-if="purgeError" :title="purgeError" type="error" :closable="false" show-icon class="mb8" />
       <el-skeleton v-if="purgePreviewLoading" :rows="5" animated />
       <template v-else-if="purgePreview">
-        <el-descriptions :column="2" border size="small" class="mb8">
+        <el-descriptions :column="descriptionColumns" border size="small" class="mb8">
           <el-descriptions-item label="批次">{{ purgePreview.batchName }}</el-descriptions-item>
           <el-descriptions-item label="影响总数">{{ purgePreview.totalCount }}</el-descriptions-item>
           <el-descriptions-item label="在线清理上限">{{ purgePreview.onlinePurgeLimit }}</el-descriptions-item>
@@ -75,8 +79,8 @@
       <template #footer><el-button :disabled="purgeSubmitting" @click="purgeVisible = false">取消</el-button><el-button type="primary" :loading="purgePreviewLoading" :disabled="purgePreviewLoading || purgeSubmitting" @click="loadPurgePreview">重新预览</el-button><el-button type="danger" :loading="purgeSubmitting" :disabled="!canPurge" @click="submitPurge">确认清理</el-button></template>
     </el-dialog>
 
-    <el-dialog v-model="auditVisible" title="清理审计汇总" width="min(620px, 92vw)" append-to-body>
-      <el-descriptions :column="1" border><el-descriptions-item label="批次">{{ auditBatch?.batchName }}</el-descriptions-item><el-descriptions-item label="清理时间">{{ parseTime(auditBatch?.purgedAt) }}</el-descriptions-item><el-descriptions-item label="清理汇总"><pre class="audit-summary">{{ JSON.stringify(auditBatch?.purgeSummary || {}, null, 2) }}</pre></el-descriptions-item></el-descriptions>
+    <el-dialog v-model="auditVisible" class="test-batch-dialog" title="清理审计汇总" width="min(620px, 92vw)" append-to-body>
+      <el-descriptions :column="descriptionColumns" border><el-descriptions-item label="批次">{{ auditBatch?.batchName }}</el-descriptions-item><el-descriptions-item label="清理时间">{{ parseTime(auditBatch?.purgedAt) }}</el-descriptions-item><el-descriptions-item label="清理汇总"><pre class="audit-summary">{{ JSON.stringify(auditBatch?.purgeSummary || {}, null, 2) }}</pre></el-descriptions-item></el-descriptions>
     </el-dialog>
   </div>
   <el-empty v-else description="无测试批次管理权限" />
@@ -107,6 +111,8 @@ const assignSubmitting = ref(false)
 const assignError = ref('')
 const assignBatch = ref(null)
 const assignedUserIds = ref('')
+const detailLoaded = ref(false)
+const assignRequestBatchId = ref(undefined)
 const purgeVisible = ref(false)
 const purgePreviewLoading = ref(false)
 const purgeSubmitting = ref(false)
@@ -118,7 +124,11 @@ const purgeBatchName = ref('')
 const onlinePurgeAllowed = ref(false)
 const auditVisible = ref(false)
 const auditBatch = ref(null)
+const descriptionColumns = ref(2)
+let listRequestVersion = 0
+let assignSession = 0
 let purgeVersion = 0
+let purgeSession = 0
 const queryParams = ref({ pageNum: 1, pageSize: 10 })
 const formRules = { batchName: [{ required: true, message: '请输入批次名称', trigger: 'blur' }] }
 const actionsFor = row => ({
@@ -133,17 +143,41 @@ const canPurge = computed(() => Boolean(purgePreview.value && purgeToken.value &
 const isOnlinePurgeBlocked = computed(() => onlinePurgeAllowed.value === false)
 
 function statusType(status) { return status === 'ACTIVE' ? 'success' : status === 'CLOSED' ? 'warning' : 'info' }
+function updateDescriptionColumns() { descriptionColumns.value = window.innerWidth <= 767 ? 1 : 2 }
+function isCurrentListRequest(listContext) { return listContext.version === listRequestVersion }
+function updateParticipantRow(batchId, listContext, patch) {
+  if (!isCurrentListRequest(listContext)) return
+  batchList.value = batchList.value.map((row) => row.batchId === batchId ? { ...row, ...patch } : row)
+}
+function hydrateParticipantCounts(rows, listContext) {
+  rows.forEach((row) => {
+    const batchId = row.batchId
+    getTestBatch(batchId).then((response) => {
+      if (!isCurrentListRequest(listContext)) return
+      const userIds = response.data?.userIds
+      if (!Array.isArray(userIds)) throw new Error('批次详情未返回用户授权')
+      updateParticipantRow(batchId, listContext, { participantState: 'ready', participantCount: userIds.length })
+    }).catch(() => {
+      updateParticipantRow(batchId, listContext, { participantState: 'error', participantCount: undefined })
+    })
+  })
+}
 function getList() {
+  const listContext = { version: ++listRequestVersion }
   loading.value = true
   loadError.value = ''
   return listTestBatches(queryParams.value).then((response) => {
-    batchList.value = Array.isArray(response.rows) ? response.rows : []
+    if (!isCurrentListRequest(listContext)) return
+    const rows = Array.isArray(response.rows) ? response.rows : []
+    batchList.value = rows.map((row) => ({ ...row, participantState: 'loading', participantCount: undefined }))
     total.value = response.total || 0
+    hydrateParticipantCounts(rows, listContext)
   }).catch(() => {
+    if (!isCurrentListRequest(listContext)) return
     batchList.value = []
     total.value = 0
     loadError.value = '测试批次列表加载失败，请稍后重试'
-  }).finally(() => { loading.value = false })
+  }).finally(() => { if (isCurrentListRequest(listContext)) loading.value = false })
 }
 async function refreshAfterSuccess(message) { proxy.$modal.msgSuccess(message); await Promise.all([getList(), testBatchStore.refreshOptions()]) }
 function openCreate() { Object.assign(form, { batchId: undefined, batchName: '', remark: '' }); formError.value = ''; formVisible.value = true }
@@ -170,41 +204,107 @@ function closeBatch(row) {
 function reopenBatch(row) {
   runOperation(`reopen:${row.batchId}`, () => reopenTestBatch(row.batchId).then((response) => refreshAfterSuccess(response.msg || '批次已重新开启')).catch(() => proxy.$modal.msgError('重新开启批次失败')))
 }
-function parseUserIds() { return [...new Set(assignedUserIds.value.split(',').map((value) => Number(value.trim())).filter((id) => Number.isInteger(id) && id > 0))] }
+function parseAssignedUserIds(value) {
+  if (typeof value !== 'string' || !value.trim()) return { valid: true, userIds: [] }
+  const userIds = []
+  for (const token of value.split(',')) {
+    const normalized = token.trim()
+    if (!/^[1-9]\d*$/.test(normalized)) return { valid: false, userIds: [] }
+    const userId = Number(normalized)
+    if (!Number.isSafeInteger(userId)) return { valid: false, userIds: [] }
+    userIds.push(userId)
+  }
+  return { valid: true, userIds: [...new Set(userIds)] }
+}
+function shouldLeaveTestMode(currentBatchId, batchId) { return Boolean(currentBatchId) && Boolean(batchId) && String(currentBatchId) === String(batchId) }
+function resetAssignDialog() {
+  assignSession += 1
+  assignLoading.value = false
+  assignSubmitting.value = false
+  assignError.value = ''
+  assignBatch.value = null
+  assignRequestBatchId.value = undefined
+  assignedUserIds.value = ''
+  detailLoaded.value = false
+}
+function isCurrentAssignContext(context) {
+  return context.session === assignSession && context.batchId === assignRequestBatchId.value && assignVisible.value
+}
 function openAssign(row) {
-  assignVisible.value = true; assignLoading.value = true; assignError.value = ''; assignBatch.value = row; assignedUserIds.value = ''
-  getTestBatch(row.batchId).then((response) => { const detail = response.data || {}; assignBatch.value = detail; assignedUserIds.value = (detail.userIds || []).join(', ') }).catch(() => { assignError.value = '批次详情加载失败，请稍后重试' }).finally(() => { assignLoading.value = false })
+  resetAssignDialog()
+  assignVisible.value = true
+  assignLoading.value = true
+  assignRequestBatchId.value = row.batchId
+  const context = { session: assignSession, batchId: row.batchId }
+  getTestBatch(context.batchId).then((response) => {
+    if (!isCurrentAssignContext(context)) return
+    const detail = response.data || {}
+    if (detail.batchId !== context.batchId || !Array.isArray(detail.userIds)) throw new Error('批次详情不完整')
+    assignBatch.value = detail
+    assignedUserIds.value = detail.userIds.join(', ')
+    detailLoaded.value = true
+  }).catch(() => {
+    if (!isCurrentAssignContext(context)) return
+    assignBatch.value = null
+    assignedUserIds.value = ''
+    detailLoaded.value = false
+    assignError.value = '批次详情加载失败，请关闭后重试'
+  }).finally(() => { if (isCurrentAssignContext(context)) assignLoading.value = false })
 }
 function submitAssign() {
-  if (assignSubmitting.value || !assignBatch.value) return
-  const userIds = parseUserIds()
-  const source = assignedUserIds.value.trim()
-  if (source && !userIds.length) { assignError.value = '用户 ID 必须是正整数，多个 ID 用英文逗号分隔'; return }
+  if (assignSubmitting.value || !detailLoaded.value || !assignBatch.value) return
+  const context = { session: assignSession, batchId: assignBatch.value.batchId }
+  if (!isCurrentAssignContext(context)) return
+  const parsed = parseAssignedUserIds(assignedUserIds.value)
+  if (!parsed.valid) { assignError.value = '用户 ID 必须是正整数，多个 ID 用英文逗号分隔且不能留空项'; return }
   assignSubmitting.value = true; assignError.value = ''
-  assignTestBatchUsers(assignBatch.value.batchId, { userIds }).then(async (response) => { assignVisible.value = false; await refreshAfterSuccess(response.msg || '用户授权已更新') }).catch(() => { assignError.value = '用户授权失败，请稍后重试' }).finally(() => { assignSubmitting.value = false })
+  assignTestBatchUsers(context.batchId, { userIds: parsed.userIds }).then(async (response) => {
+    if (!isCurrentAssignContext(context)) return
+    assignVisible.value = false
+    await refreshAfterSuccess(response.msg || '用户授权已更新')
+  }).catch(() => {
+    if (!isCurrentAssignContext(context)) return
+    assignError.value = '用户授权失败，请稍后重试'
+  }).finally(() => { if (isCurrentAssignContext(context)) assignSubmitting.value = false })
 }
-function invalidatePurgePreview() { purgeVersion += 1; purgePreview.value = null; purgeToken.value = ''; purgeBatchName.value = ''; onlinePurgeAllowed.value = false }
-function openPurge(row) { purgeBatch.value = row; purgeError.value = ''; purgeVisible.value = true; invalidatePurgePreview(); loadPurgePreview() }
+function clearPurgePreview() { purgePreview.value = null; purgeToken.value = ''; purgeBatchName.value = ''; onlinePurgeAllowed.value = false }
+function resetPurgeDialog() { purgeSession += 1; purgeVersion += 1; purgePreviewLoading.value = false; purgeSubmitting.value = false; purgeError.value = ''; purgeBatch.value = null; clearPurgePreview() }
+function isCurrentPurgeContext(context) { return context.session === purgeSession && context.version === purgeVersion && context.batchId === purgeBatch.value?.batchId && purgeVisible.value }
+function openPurge(row) { resetPurgeDialog(); purgeBatch.value = row; purgeError.value = ''; purgeVisible.value = true; loadPurgePreview() }
 function loadPurgePreview() {
   if (!purgeBatch.value || purgePreviewLoading.value || purgeSubmitting.value) return
-  invalidatePurgePreview(); const version = ++purgeVersion; purgePreviewLoading.value = true; purgeError.value = ''
+  clearPurgePreview()
+  const context = { session: purgeSession, version: ++purgeVersion, batchId: purgeBatch.value.batchId }
+  purgePreviewLoading.value = true; purgeError.value = ''
   previewTestBatchPurge(purgeBatch.value.batchId).then((response) => {
-    if (version !== purgeVersion) return
+    if (!isCurrentPurgeContext(context)) return
     const data = response.data || {}
     if (!data.previewToken || !data.batchName) throw new Error('预览响应不完整')
     purgePreview.value = data; purgeToken.value = data.previewToken; onlinePurgeAllowed.value = data.onlinePurgeAllowed === true
-  }).catch(() => { if (version === purgeVersion) { invalidatePurgePreview(); purgeError.value = '清理预览已失效或批次状态已变化，请重新预览' } }).finally(() => { if (version === purgeVersion) purgePreviewLoading.value = false })
+  }).catch(() => { if (isCurrentPurgeContext(context)) { clearPurgePreview(); purgeError.value = '清理预览已失效或批次状态已变化，请重新预览' } }).finally(() => { if (isCurrentPurgeContext(context)) purgePreviewLoading.value = false })
 }
 function submitPurge() {
   if (!canPurge.value || purgeSubmitting.value || !purgeBatch.value) return
-  purgeSubmitting.value = true; purgeError.value = ''; const token = purgeToken.value
-  purgeTestBatch(purgeBatch.value.batchId, { batchName: purgeBatchName.value, previewToken: purgeToken.value }).then(async (response) => { purgeVisible.value = false; testBatchStore.leaveTestMode(); await refreshAfterSuccess(response.msg || '批次已清理') }).catch(() => { if (token === purgeToken.value) { invalidatePurgePreview(); purgeError.value = '清理预览令牌已失效，请重新预览' } }).finally(() => { purgeSubmitting.value = false })
+  const context = { session: purgeSession, version: purgeVersion, batchId: purgeBatch.value.batchId, token: purgeToken.value }
+  purgeSubmitting.value = true; purgeError.value = ''
+  purgeTestBatch(context.batchId, { batchName: purgeBatchName.value, previewToken: context.token }).then(async (response) => {
+    if (!isCurrentPurgeContext(context)) return
+    if (shouldLeaveTestMode(testBatchStore.currentBatchId, purgeBatch.value.batchId)) {
+      testBatchStore.leaveTestMode()
+    }
+    purgeVisible.value = false
+    await refreshAfterSuccess(response.msg || '批次已清理')
+  }).catch(() => { if (isCurrentPurgeContext(context) && context.token === purgeToken.value) { clearPurgePreview(); purgeError.value = '清理预览令牌已失效，请重新预览' } }).finally(() => { if (isCurrentPurgeContext(context)) purgeSubmitting.value = false })
 }
 function openAudit(row) { auditBatch.value = row; auditVisible.value = true }
-onMounted(getList)
+onMounted(() => { updateDescriptionColumns(); window.addEventListener('resize', updateDescriptionColumns); getList() })
+onBeforeUnmount(() => window.removeEventListener('resize', updateDescriptionColumns))
 </script>
 
 <style scoped>
 .page-toolbar { display:flex; align-items:center; justify-content:space-between; gap:16px; padding-bottom:12px; border-bottom:1px solid var(--el-border-color-lighter); }
-.page-toolbar h2 { margin:0; font-size:18px; font-weight:600; }.page-toolbar p { margin:4px 0 0; color:var(--el-text-color-secondary); font-size:13px; }.impact-keys { display:block; overflow-wrap:anywhere; }.purge-confirm { margin-top:12px; }.audit-summary { margin:0; white-space:pre-wrap; overflow-wrap:anywhere; }@media (max-width:768px) { .page-toolbar { align-items:flex-start; flex-direction:column; }.page-toolbar :deep(.el-button) { width:100%; } }
+.page-toolbar h2 { margin:0; font-size:18px; font-weight:600; }.page-toolbar p { margin:4px 0 0; color:var(--el-text-color-secondary); font-size:13px; }.impact-keys { display:block; overflow-wrap:anywhere; }.purge-confirm { margin-top:12px; }.audit-summary { margin:0; white-space:pre-wrap; overflow-wrap:anywhere; }.participant-error { color:var(--el-color-danger); font-size:12px; }
+:global(.test-batch-dialog) { display:flex; flex-direction:column; max-height:90vh; }
+:global(.test-batch-dialog .el-dialog__body) { flex:1; min-height:0; overflow-y:auto; }
+@media (max-width:768px) { .page-toolbar { align-items:flex-start; flex-direction:column; }.page-toolbar :deep(.el-button) { width:100%; } }
 </style>