diff --git a/src/components/CrudTable.vue b/src/components/CrudTable.vue
index c69593a..a6bbd40 100644
--- a/src/components/CrudTable.vue
+++ b/src/components/CrudTable.vue
@@ -89,12 +89,27 @@ const {
 // vxe-table 实例引用（用于获取选中行）
 const xTableRef = ref()
 
+// 父级 query 中匹配列定义的关联字段（如 DeptUUID/UserUUID/WorkgroupUUID）：
+// 详情页子表场景自动注入新增/编辑表单，保证新记录归属当前详情上下文；
+// 注入后隐藏表单项（值由父级上下文决定，不允许用户修改）。
+const inheritedQueryFields = computed(() => {
+  const q = props.query ?? {}
+  const colFields = new Set(columns.value.map((c) => c.field))
+  const result: Record<string, unknown> = {}
+  for (const [k, v] of Object.entries(q)) {
+    if (v !== undefined && v !== null && v !== '' && colFields.has(k)) {
+      result[k] = v
+    }
+  }
+  return result
+})
+
 // 可见表格列（排除 hidden）
 const tableColumns = computed(() =>
   columns.value.filter((c: ColumnSchema) => c.visible !== false && c.type !== 'hidden'),
 )
 
-// 弹窗表单可见列（排除隐藏/主键隐藏/不可编辑/divider/html）
+// 弹窗表单可见列（排除隐藏/主键隐藏/不可编辑/divider/html/父级注入字段）
 const formColumns = computed(() => {
   const pkField = columns.value.find((c) => c.isPrimary || c.primaryKey)?.field || 'Id'
   return columns.value.filter(
@@ -104,10 +119,23 @@ const formColumns = computed(() => {
       c.type !== 'hidden' &&
       c.type !== 'divider' &&
       c.type !== 'html' &&
-      c.field !== pkField,
+      c.field !== pkField &&
+      !(c.field in inheritedQueryFields.value),
   )
 })
 
+// 新增：先走 useCrudTable 初始化，再注入父级上下文关联字段
+function onHandleCreate(): void {
+  handleCreate()
+  Object.assign(editingRow, inheritedQueryFields.value)
+}
+
+// 提交：保证父级上下文关联字段始终存在（编辑时用户可能误删）
+function onHandleSubmit(): void {
+  Object.assign(editingRow, inheritedQueryFields.value)
+  handleSubmit()
+}
+
 // vxe-table checkbox 变化：同步到 selectedRows
 function onCheckboxChange(): void {
   const records = xTableRef.value?.getCheckboxRecords?.() || []
@@ -163,7 +191,7 @@ function renderSelectLabel(col: ColumnSchema, value: unknown): string {
         <div class="table-header">
           <span class="table-title">{{ title || table }}</span>
           <div class="table-actions">
-            <el-button type="primary" @click="handleCreate">
+            <el-button type="primary" @click="onHandleCreate">
               <el-icon><Plus /></el-icon>新增
             </el-button>
             <el-button
@@ -379,7 +407,7 @@ function renderSelectLabel(col: ColumnSchema, value: unknown): string {
 
       <template #footer>
         <el-button @click="dialogVisible = false">取消</el-button>
-        <el-button type="primary" :loading="submitting" @click="handleSubmit">保存</el-button>
+        <el-button type="primary" :loading="submitting" @click="onHandleSubmit">保存</el-button>
       </template>
     </el-dialog>
   </div>
diff --git a/src/views/company/CompanyDetail.vue b/src/views/company/CompanyDetail.vue
index 4370115..65a2c59 100644
--- a/src/views/company/CompanyDetail.vue
+++ b/src/views/company/CompanyDetail.vue
@@ -60,8 +60,8 @@ const resolvedNames = ref<Record<string, Record<string, string>>>({})
 /** 错误信息（缺参 / 加载失败时展示） */
 const errorMsg = ref('')
 
-/** 从路由 query 读取公司 UUID */
-const companyUUID = (route.query.CompanyUUID as string) || ''
+/** 从路由 query 读取公司 UUID（computed 响应式：同一 tab 复用且 query 变化时自动更新） */
+const companyUUID = computed(() => (route.query.CompanyUUID as string) || '')
 
 /** 公司主键字段名 */
 const PK_FIELD = 'CompanyUUID'
@@ -96,7 +96,7 @@ function pickList<T = RowData>(res: unknown): T[] {
 
 /** 拉取公司主数据 + 解析关联 UUID */
 async function loadCompany(): Promise<void> {
-  if (!companyUUID) {
+  if (!companyUUID.value) {
     errorMsg.value = '缺少 CompanyUUID 参数，无法加载公司详情。'
     return
   }
@@ -104,11 +104,11 @@ async function loadCompany(): Promise<void> {
   errorMsg.value = ''
   try {
     const res = await formApi.list<CompanyRecord>('Company', {
-      CompanyUUID: companyUUID,
+      CompanyUUID: companyUUID.value,
       pageSize: 1,
     })
     const list = pickList<CompanyRecord>(res)
-    const data = list.find((c) => c.CompanyUUID === companyUUID) || list[0]
+    const data = list.find((c) => c.CompanyUUID === companyUUID.value) || list[0]
     if (!data) {
       errorMsg.value = '未找到公司数据'
       return
@@ -209,6 +209,15 @@ async function copyUUID(uuid: string): Promise<void> {
 }
 
 onMounted(loadCompany)
+
+// 同一 tab 复用（v-show 常驻）时 query 变化：重新加载（防展示旧公司数据 / 缺参报错）
+watch(companyUUID, () => {
+  if (!companyUUID.value) {
+    errorMsg.value = '缺少 CompanyUUID 参数，无法加载公司详情。'
+    return
+  }
+  void loadCompany()
+})
 </script>
 
 <template>
diff --git a/src/views/company/DepartmentDetail.vue b/src/views/company/DepartmentDetail.vue
index 5959517..43d3f4b 100644
--- a/src/views/company/DepartmentDetail.vue
+++ b/src/views/company/DepartmentDetail.vue
@@ -17,7 +17,7 @@
  * - 子表列定义由后端 Columns 接口返回（含 RoleType 选项 0员工/1负责人），CrudTable 自动渲染
  * - onView 跳用户详情：/system/user-detail?UserUUID=xxx（对齐工程统一用户详情入口）
  */
-import { ref, reactive, computed, onMounted } from 'vue'
+import { ref, reactive, computed, onMounted, watch } from 'vue'
 import { useRoute, useRouter } from 'vue-router'
 import { ElMessage } from 'element-plus'
 import DetailPage from '@/components/DetailPage.vue'
@@ -33,8 +33,8 @@ const route = useRoute()
 const router = useRouter()
 const { resolveUUIDs } = useResolveUUIDs()
 
-// 路由参数：部门 UUID
-const deptUUID = (route.query.DeptUUID as string) || ''
+// 路由参数：部门 UUID（computed 响应式：同一 tab 复用且 query 变化时自动更新）
+const deptUUID = computed(() => (route.query.DeptUUID as string) || '')
 
 // === 状态 ===
 const loading = ref(false)
@@ -76,15 +76,15 @@ function formatTime(v: unknown): string {
 // === 数据加载 ===
 
 async function loadData(): Promise<void> {
-  if (!deptUUID) {
+  if (!deptUUID.value) {
     ElMessage.warning('缺少 DeptUUID 参数，无法加载部门详情')
     return
   }
   loading.value = true
   try {
-    const result = await formApi.list('Department', { [PK_FIELD]: deptUUID, pageSize: 1 })
+    const result = await formApi.list('Department', { [PK_FIELD]: deptUUID.value, pageSize: 1 })
     const list: any[] = Array.isArray(result) ? result : (result as any)?.list || []
-    const row = list.find((d) => d[PK_FIELD] === deptUUID) || list[0]
+    const row = list.find((d) => d[PK_FIELD] === deptUUID.value) || list[0]
     if (!row) {
       ElMessage.error('未找到部门数据')
       return
@@ -163,6 +163,15 @@ function goUserDetail(row: Record<string, any>): void {
 onMounted(async () => {
   await Promise.all([loadData(), loadColumns()])
 })
+
+// 同一 tab 复用（v-show 常驻）时 query 变化：重新加载（防展示旧部门数据 / 缺参报错）
+watch(deptUUID, () => {
+  if (!deptUUID.value) {
+    ElMessage.warning('缺少 DeptUUID 参数，无法加载部门详情')
+    return
+  }
+  void loadData()
+})
 </script>
 
 <template>
diff --git a/src/views/company/EmployeeDetail.vue b/src/views/company/EmployeeDetail.vue
index 72a297a..b857e56 100644
--- a/src/views/company/EmployeeDetail.vue
+++ b/src/views/company/EmployeeDetail.vue
@@ -21,7 +21,7 @@
  * - 头像 URL 手动附加 getServerScopeParams() 返回的 server / admin_verify。
  * - 编辑弹窗动态渲染列定义，保存调用 formApi.update（对齐已迁移详情页约定）。
  */
-import { ref, reactive, computed, onMounted } from 'vue'
+import { ref, reactive, computed, onMounted, watch } from 'vue'
 import { useRoute, useRouter } from 'vue-router'
 import { ElMessage } from 'element-plus'
 import DetailPage from '@/components/DetailPage.vue'
@@ -72,8 +72,8 @@ const twoFaData = ref<TwoFaInfo | null>(null)
 /** 错误信息 */
 const errorMsg = ref('')
 
-/** 从路由 query 读取用户 UUID */
-const userUUID = (route.query.UserUUID as string) || ''
+/** 从路由 query 读取用户 UUID（computed 响应式：同一 tab 复用且 query 变化时自动更新） */
+const userUUID = computed(() => (route.query.UserUUID as string) || '')
 
 /** 用户主键字段名 */
 const PK_FIELD = 'UserUUID'
@@ -107,7 +107,7 @@ function genderText(val: unknown): string {
 /** 头像 URL：手动附加 server / admin_verify 作用域参数（el-avatar 不走 axios 拦截器） */
 const avatarUrl = computed(() => {
   const params = new URLSearchParams()
-  params.set('UserUUID', userUUID)
+  params.set('UserUUID', userUUID.value)
   const scope = getServerScopeParams()
   if (scope.server) params.set('server', scope.server)
   if (scope.admin_verify) params.set('admin_verify', scope.admin_verify)
@@ -143,7 +143,7 @@ function isTruthy(val: unknown): boolean {
 
 /** 拉取用户主数据 + 2FA 信息（2FA 失败不阻塞） */
 async function loadUser(): Promise<void> {
-  if (!userUUID) {
+  if (!userUUID.value) {
     errorMsg.value = '缺少 UserUUID 参数，无法加载员工详情。'
     return
   }
@@ -151,9 +151,9 @@ async function loadUser(): Promise<void> {
   errorMsg.value = ''
   twoFaData.value = null
   try {
-    const res = await formApi.list<UserRecord>('User', { UserUUID: userUUID, pageSize: 1 })
+    const res = await formApi.list<UserRecord>('User', { UserUUID: userUUID.value, pageSize: 1 })
     const list = pickList<UserRecord>(res)
-    const data = list.find((u) => u.UserUUID === userUUID) || list[0]
+    const data = list.find((u) => u.UserUUID === userUUID.value) || list[0]
     if (!data) {
       errorMsg.value = '未找到用户数据'
       return
@@ -164,7 +164,7 @@ async function loadUser(): Promise<void> {
     // 并行获取 2FA 信息（失败不阻塞页面）
     try {
       twoFaData.value = await get<TwoFaInfo>('/API/SiteUserManagement/GetUser2FAInfo', {
-        UserUUID: userUUID,
+        UserUUID: userUUID.value,
       })
     } catch {
       twoFaData.value = null
@@ -233,6 +233,15 @@ async function saveEdit(): Promise<void> {
 }
 
 onMounted(loadUser)
+
+// 同一 tab 复用（v-show 常驻）时 query 变化：重新加载（防展示旧员工数据 / 缺参报错）
+watch(userUUID, () => {
+  if (!userUUID.value) {
+    errorMsg.value = '缺少 UserUUID 参数，无法加载员工详情。'
+    return
+  }
+  void loadUser()
+})
 </script>
 
 <template>
diff --git a/src/views/company/RoleDetail.vue b/src/views/company/RoleDetail.vue
index 52563ad..0da38d1 100644
--- a/src/views/company/RoleDetail.vue
+++ b/src/views/company/RoleDetail.vue
@@ -21,7 +21,7 @@
  * - 是否特权模式由 isDefaultServer()/hasAdminVerifyArg() 综合判断（与 AdminBadge 一致）。
  * - 编辑弹窗动态渲染列定义，保存调用 formApi.update（对齐已迁移详情页约定）。
  */
-import { ref, reactive, computed, onMounted } from 'vue'
+import { ref, reactive, computed, onMounted, watch } from 'vue'
 import { useRoute } from 'vue-router'
 import { ElMessage } from 'element-plus'
 import DetailPage from '@/components/DetailPage.vue'
@@ -55,8 +55,8 @@ const roleData = ref<RoleRecord | null>(null)
 /** 错误信息 */
 const errorMsg = ref('')
 
-/** 从路由 query 读取角色 UUID */
-const roleUUID = (route.query.RoleUUID as string) || ''
+/** 从路由 query 读取角色 UUID（computed 响应式：同一 tab 复用且 query 变化时自动更新） */
+const roleUUID = computed(() => (route.query.RoleUUID as string) || '')
 
 /** 角色主键字段名 */
 const PK_FIELD = 'RoleUUID'
@@ -107,16 +107,16 @@ function pickList<T = RowData>(res: unknown): T[] {
 
 /** 拉取角色主数据 */
 async function loadRole(): Promise<void> {
-  if (!roleUUID) {
+  if (!roleUUID.value) {
     errorMsg.value = '缺少 RoleUUID 参数，无法加载角色详情。'
     return
   }
   loading.value = true
   errorMsg.value = ''
   try {
-    const res = await formApi.list<RoleRecord>('Role', { RoleUUID: roleUUID, pageSize: 1 })
+    const res = await formApi.list<RoleRecord>('Role', { RoleUUID: roleUUID.value, pageSize: 1 })
     const list = pickList<RoleRecord>(res)
-    const data = list.find((r) => r.RoleUUID === roleUUID) || list[0]
+    const data = list.find((r) => r.RoleUUID === roleUUID.value) || list[0]
     if (!data) {
       errorMsg.value = '未找到角色数据'
       return
@@ -181,6 +181,15 @@ async function saveEdit(): Promise<void> {
 }
 
 onMounted(loadRole)
+
+// 同一 tab 复用（v-show 常驻）时 query 变化：重新加载（防展示旧角色数据 / 缺参报错）
+watch(roleUUID, () => {
+  if (!roleUUID.value) {
+    errorMsg.value = '缺少 RoleUUID 参数，无法加载角色详情。'
+    return
+  }
+  void loadRole()
+})
 </script>
 
 <template>
diff --git a/src/views/company/TenantDetail.vue b/src/views/company/TenantDetail.vue
index 227ef58..e106248 100644
--- a/src/views/company/TenantDetail.vue
+++ b/src/views/company/TenantDetail.vue
@@ -17,7 +17,7 @@
  * - 租户状态码：0→禁用，1→启用
  * - 原生 _isAdminMode（hasAdminVerifyArg）由拦截器统一处理，无需手动注入
  */
-import { ref, reactive, computed, onMounted } from 'vue'
+import { ref, reactive, computed, onMounted, watch } from 'vue'
 import { useRoute, useRouter } from 'vue-router'
 import { ElMessage } from 'element-plus'
 import DetailPage from '@/components/DetailPage.vue'
@@ -31,8 +31,8 @@ import type { ColumnSchema } from '@/types/api'
 const route = useRoute()
 const router = useRouter()
 
-// 路由参数：租户 UUID
-const tenantUUID = (route.query.TenantUUID as string) || ''
+// 路由参数：租户 UUID（computed 响应式：同一 tab 复用且 query 变化时自动更新）
+const tenantUUID = computed(() => (route.query.TenantUUID as string) || '')
 
 // === 状态 ===
 const loading = ref(false)
@@ -92,15 +92,15 @@ const formColumns = computed(() =>
 // === 数据加载 ===
 
 async function loadData(): Promise<void> {
-  if (!tenantUUID) {
+  if (!tenantUUID.value) {
     ElMessage.warning('缺少 TenantUUID 参数，无法加载租户详情')
     return
   }
   loading.value = true
   try {
-    const result = await formApi.list('Tenant', { [PK_FIELD]: tenantUUID, pageSize: 1 })
+    const result = await formApi.list('Tenant', { [PK_FIELD]: tenantUUID.value, pageSize: 1 })
     const list: any[] = Array.isArray(result) ? result : (result as any)?.list || []
-    const row = list.find((t) => t[PK_FIELD] === tenantUUID) || list[0]
+    const row = list.find((t) => t[PK_FIELD] === tenantUUID.value) || list[0]
     if (!row) {
       ElMessage.error('未找到租户数据')
       return
@@ -151,6 +151,15 @@ function goCompanyDetail(row: Record<string, any>): void {
 onMounted(async () => {
   await Promise.all([loadData(), loadColumns()])
 })
+
+// 同一 tab 复用（v-show 常驻）时 query 变化：重新加载（防展示旧租户数据 / 缺参报错）
+watch(tenantUUID, () => {
+  if (!tenantUUID.value) {
+    ElMessage.warning('缺少 TenantUUID 参数，无法加载租户详情')
+    return
+  }
+  void loadData()
+})
 </script>
 
 <template>
diff --git a/src/views/company/WorkgroupDetail.vue b/src/views/company/WorkgroupDetail.vue
index 2af0b79..6906312 100644
--- a/src/views/company/WorkgroupDetail.vue
+++ b/src/views/company/WorkgroupDetail.vue
@@ -16,7 +16,7 @@
  * - UUID 解析：所属公司 CompanyUUID → CompanyName，使用 useResolveUUIDs composable（带缓存）
  * - 原生 buildApiUrl 无 admin_verify 分支（本页未启用特权模式），拦截器按 URL 自动处理
  */
-import { ref, reactive, computed, onMounted } from 'vue'
+import { ref, reactive, computed, onMounted, watch } from 'vue'
 import { useRoute, useRouter } from 'vue-router'
 import { ElMessage } from 'element-plus'
 import DetailPage from '@/components/DetailPage.vue'
@@ -32,8 +32,8 @@ const route = useRoute()
 const router = useRouter()
 const { resolveUUIDs } = useResolveUUIDs()
 
-// 路由参数：工作组 UUID
-const workgroupUUID = (route.query.WorkgroupUUID as string) || ''
+// 路由参数：工作组 UUID（computed 响应式：同一 tab 复用且 query 变化时自动更新）
+const workgroupUUID = computed(() => (route.query.WorkgroupUUID as string) || '')
 
 // === 状态 ===
 const loading = ref(false)
@@ -56,15 +56,15 @@ const title = computed(() => data.value?.WorkgroupName || '工作组详情')
 // === 数据加载 ===
 
 async function loadData(): Promise<void> {
-  if (!workgroupUUID) {
+  if (!workgroupUUID.value) {
     ElMessage.warning('缺少 WorkgroupUUID 参数，无法加载工作组详情')
     return
   }
   loading.value = true
   try {
-    const result = await formApi.list('Workgroup', { [PK_FIELD]: workgroupUUID, pageSize: 1 })
+    const result = await formApi.list('Workgroup', { [PK_FIELD]: workgroupUUID.value, pageSize: 1 })
     const list: any[] = Array.isArray(result) ? result : (result as any)?.list || []
-    const row = list.find((w) => w[PK_FIELD] === workgroupUUID) || list[0]
+    const row = list.find((w) => w[PK_FIELD] === workgroupUUID.value) || list[0]
     if (!row) {
       ElMessage.error('未找到工作组数据')
       return
@@ -143,6 +143,15 @@ function goRoleDetail(row: Record<string, any>): void {
 onMounted(async () => {
   await Promise.all([loadData(), loadColumns()])
 })
+
+// 同一 tab 复用（v-show 常驻）时 query 变化：重新加载（防展示旧工作组数据 / 缺参报错）
+watch(workgroupUUID, () => {
+  if (!workgroupUUID.value) {
+    ElMessage.warning('缺少 WorkgroupUUID 参数，无法加载工作组详情')
+    return
+  }
+  void loadData()
+})
 </script>
 
 <template>
diff --git a/src/views/system/RoleDetail.vue b/src/views/system/RoleDetail.vue
index a0e7bd8..e2a5efe 100644
--- a/src/views/system/RoleDetail.vue
+++ b/src/views/system/RoleDetail.vue
@@ -18,7 +18,7 @@
  * - 权限树分配：跳 /system/role-permissions?RoleUUID=xxx（RolePermissions 页用 el-tree 实现）
  * - role_scope 细粒度判断暂用 userStore.isAdmin 二分（TODO）
  */
-import { ref, reactive, computed, onMounted } from 'vue'
+import { ref, reactive, computed, onMounted, watch } from 'vue'
 import { useRoute, useRouter } from 'vue-router'
 import { ElMessage } from 'element-plus'
 import DetailPage from '@/components/DetailPage.vue'
@@ -34,8 +34,8 @@ const route = useRoute()
 const router = useRouter()
 const userStore = useUserStore()
 
-// 路由参数：角色 UUID
-const roleUUID = (route.query.RoleUUID as string) || ''
+// 路由参数：角色 UUID（computed 响应式：同一 tab 复用且 query 变化时自动更新）
+const roleUUID = computed(() => (route.query.RoleUUID as string) || '')
 
 // === 状态 ===
 const loading = ref(false)
@@ -111,15 +111,15 @@ const formColumns = computed(() =>
 // === 数据加载 ===
 
 async function loadData(): Promise<void> {
-  if (!roleUUID) {
+  if (!roleUUID.value) {
     ElMessage.warning('缺少 RoleUUID 参数，无法加载角色详情')
     return
   }
   loading.value = true
   try {
-    const result = await formApi.list('Role', { [PK_FIELD]: roleUUID, pageSize: 1 })
+    const result = await formApi.list('Role', { [PK_FIELD]: roleUUID.value, pageSize: 1 })
     const list: any[] = Array.isArray(result) ? result : (result as any)?.list || []
-    const row = list.find((r) => r[PK_FIELD] === roleUUID) || list[0]
+    const row = list.find((r) => r[PK_FIELD] === roleUUID.value) || list[0]
     if (!row) {
       ElMessage.error('未找到角色数据')
       return
@@ -164,11 +164,11 @@ async function handleSubmit(): Promise<void> {
 
 /** 跳转权限树分配页（RolePermissions） */
 function goPermissionTree(): void {
-  if (!roleUUID) {
+  if (!roleUUID.value) {
     ElMessage.warning('缺少 RoleUUID')
     return
   }
-  router.push({ path: '/system/role-permissions', query: { RoleUUID: roleUUID } })
+  router.push({ path: '/system/role-permissions', query: { RoleUUID: roleUUID.value } })
 }
 
 // === 子表跳转 ===
@@ -181,6 +181,15 @@ function goUserDetail(row: Record<string, any>): void {
 onMounted(async () => {
   await Promise.all([loadData(), loadColumns()])
 })
+
+// 同一 tab 复用（v-show 常驻）时 query 变化：重新加载（防展示旧角色数据 / 缺参报错）
+watch(roleUUID, () => {
+  if (!roleUUID.value) {
+    ElMessage.warning('缺少 RoleUUID 参数，无法加载角色详情')
+    return
+  }
+  void loadData()
+})
 </script>
 
 <template>
diff --git a/src/views/system/UserDetail.vue b/src/views/system/UserDetail.vue
index 828bb69..a84137e 100644
--- a/src/views/system/UserDetail.vue
+++ b/src/views/system/UserDetail.vue
@@ -20,7 +20,7 @@
  * - role_scope 细粒度判断暂用 userStore.isAdmin 二分（TODO：接入 checkAdmin 后补 dept_manager / workgroup_lead）
  * - 2FA 接口：get('/API/SiteUserManagement/GetUser2FAInfo', { UserUUID })（TODO：契约确认）
  */
-import { ref, reactive, computed, onMounted } from 'vue'
+import { ref, reactive, computed, onMounted, watch } from 'vue'
 import { useRoute, useRouter } from 'vue-router'
 import { ElMessage } from 'element-plus'
 import DetailPage from '@/components/DetailPage.vue'
@@ -37,8 +37,8 @@ const route = useRoute()
 const router = useRouter()
 const userStore = useUserStore()
 
-// 路由参数：用户 UUID
-const userUUID = (route.query.UserUUID as string) || ''
+// 路由参数：用户 UUID（computed 响应式：同一 tab 复用且 query 变化时自动更新）
+const userUUID = computed(() => (route.query.UserUUID as string) || '')
 
 // === 状态 ===
 const loading = ref(false)
@@ -128,15 +128,15 @@ const formColumns = computed(() =>
 
 /** 加载用户主表单条数据 */
 async function loadData(): Promise<void> {
-  if (!userUUID) {
+  if (!userUUID.value) {
     ElMessage.warning('缺少 UserUUID 参数，无法加载用户详情')
     return
   }
   loading.value = true
   try {
-    const result = await formApi.list('User', { [PK_FIELD]: userUUID, pageSize: 1 })
+    const result = await formApi.list('User', { [PK_FIELD]: userUUID.value, pageSize: 1 })
     const list: any[] = Array.isArray(result) ? result : (result as any)?.list || []
-    const row = list.find((u) => u[PK_FIELD] === userUUID) || list[0]
+    const row = list.find((u) => u[PK_FIELD] === userUUID.value) || list[0]
     if (!row) {
       ElMessage.error('未找到用户数据')
       return
@@ -150,10 +150,10 @@ async function loadData(): Promise<void> {
 
 /** 加载 2FA 双因素信息（TODO：接口契约确认后补全渲染） */
 async function loadTwoFactor(): Promise<void> {
-  if (!userUUID) return
+  if (!userUUID.value) return
   try {
     // TODO: GetUser2FAInfo 返回字段契约确认（Enabled / BackupCodes / BoundAt 等）
-    twoFactorInfo.value = await get('/API/SiteUserManagement/GetUser2FAInfo', { UserUUID: userUUID })
+    twoFactorInfo.value = await get('/API/SiteUserManagement/GetUser2FAInfo', { UserUUID: userUUID.value })
   } catch {
     // 2FA 信息加载失败不阻塞主流程（拦截器已统一提示）
     twoFactorInfo.value = null
@@ -208,6 +208,15 @@ onMounted(async () => {
   await Promise.all([loadData(), loadColumns()])
   void loadTwoFactor()
 })
+
+// 同一 tab 复用（v-show 常驻）时 query 变化：重新加载（防展示旧用户数据 / 缺参报错）
+watch(userUUID, () => {
+  if (!userUUID.value) {
+    ElMessage.warning('缺少 UserUUID 参数，无法加载用户详情')
+    return
+  }
+  void loadData()
+})
 </script>
 
 <template>