diff --git a/frontend/src/layouts/AdminLayout.vue b/frontend/src/layouts/AdminLayout.vue
index 2c64be2..944d450 100644
--- a/frontend/src/layouts/AdminLayout.vue
+++ b/frontend/src/layouts/AdminLayout.vue
@@ -1,25 +1,32 @@
 <script setup lang="ts">
 import {
   Bell,
+  Briefcase,
   ChatDotRound,
+  Coin,
   DataLine,
   Document,
   DocumentChecked,
-  Operation,
-  Fold,
   Expand,
+  Fold,
+  House,
+  Lock,
   Money,
+  Operation,
   ScaleToOriginal,
+  Service,
   Shop,
+  Setting,
   SwitchButton,
   Tickets,
+  Tools,
   User,
   UserFilled,
   Wallet,
-  Setting,
   CreditCard
 } from '@element-plus/icons-vue'
-import { ElMessage } from 'element-plus'
+import { ElMessage, ElSubMenu } from 'element-plus'
+import type { Component } from 'vue'
 import { computed, ref } from 'vue'
 import { useRoute, useRouter } from 'vue-router'
 
@@ -35,37 +42,112 @@ const updatingStatus = ref(false)
 interface NavItem {
   label: string
   to: string
-  icon: any
+  icon: Component
   permission?: string
 }
 
-const allNavItems: NavItem[] = [
-  { label: '仪表盘', to: '/admin/dashboard', icon: DataLine, permission: 'dashboard:view' },
-  { label: '用户管理', to: '/admin/users', icon: User, permission: 'user:view' },
-  { label: '订单管理', to: '/admin/orders', icon: Tickets, permission: 'order:view' },
-  { label: '商品管理', to: '/admin/listings', icon: Shop, permission: 'listing:view' },
-  { label: '商品审核', to: '/admin/listings/review', icon: DocumentChecked, permission: 'listing:approve' },
-  { label: '仲裁中心', to: '/admin/disputes', icon: ScaleToOriginal, permission: 'dispute:view' },
-  { label: '客服群聊', to: '/admin/chats', icon: ChatDotRound, permission: 'chat:view' },
-  { label: '资金流水', to: '/admin/wallet-ledger', icon: Wallet, permission: 'wallet:view' },
-  { label: '提现审核', to: '/admin/withdrawals', icon: Money, permission: 'withdrawal:list' },
-  { label: '支付配置', to: '/admin/payment-configs', icon: CreditCard, permission: 'payment_config:list' },
-  { label: '公告管理', to: '/admin/announcements', icon: Bell, permission: 'announcement:view' },
-  { label: '系统配置', to: '/admin/system-configs', icon: Operation, permission: 'system_config:view' },
-  { label: '审计日志', to: '/admin/audit-logs', icon: Document, permission: 'audit_log:view' },
-  { label: '管理员管理', to: '/admin/admin-users', icon: UserFilled, permission: 'admin_user:manage' },
-  { label: '角色管理', to: '/admin/roles', icon: Setting, permission: 'role:manage' },
+interface NavGroup {
+  label: string
+  index: string
+  icon: Component
+  children: NavItem[]
+}
+
+const allNavGroups: NavGroup[] = [
+  {
+    label: '工作台',
+    index: 'workspace',
+    icon: House,
+    children: [
+      { label: '仪表盘', to: '/admin/dashboard', icon: DataLine, permission: 'dashboard:view' },
+    ],
+  },
+  {
+    label: '业务管理',
+    index: 'business',
+    icon: Briefcase,
+    children: [
+      { label: '用户管理', to: '/admin/users', icon: User, permission: 'user:view' },
+      { label: '订单管理', to: '/admin/orders', icon: Tickets, permission: 'order:view' },
+      { label: '商品管理', to: '/admin/listings', icon: Shop, permission: 'listing:view' },
+      { label: '商品审核', to: '/admin/listings/review', icon: DocumentChecked, permission: 'listing:approve' },
+    ],
+  },
+  {
+    label: '客服与风控',
+    index: 'support-risk',
+    icon: Service,
+    children: [
+      { label: '仲裁中心', to: '/admin/disputes', icon: ScaleToOriginal, permission: 'dispute:view' },
+      { label: '客服群聊', to: '/admin/chats', icon: ChatDotRound, permission: 'chat:view' },
+    ],
+  },
+  {
+    label: '财务管理',
+    index: 'finance',
+    icon: Coin,
+    children: [
+      { label: '资金流水', to: '/admin/wallet-ledger', icon: Wallet, permission: 'wallet:view' },
+      { label: '提现审核', to: '/admin/withdrawals', icon: Money, permission: 'withdrawal:list' },
+      { label: '支付配置', to: '/admin/payment-configs', icon: CreditCard, permission: 'payment_config:list' },
+    ],
+  },
+  {
+    label: '内容与配置',
+    index: 'content-config',
+    icon: Tools,
+    children: [
+      { label: '公告管理', to: '/admin/announcements', icon: Bell, permission: 'announcement:view' },
+      { label: '系统配置', to: '/admin/system-configs', icon: Operation, permission: 'system_config:view' },
+    ],
+  },
+  {
+    label: '系统权限',
+    index: 'system-auth',
+    icon: Lock,
+    children: [
+      { label: '审计日志', to: '/admin/audit-logs', icon: Document, permission: 'audit_log:view' },
+      { label: '管理员管理', to: '/admin/admin-users', icon: UserFilled, permission: 'admin_user:manage' },
+      { label: '角色管理', to: '/admin/roles', icon: Setting, permission: 'role:manage' },
+    ],
+  },
 ]
 
-const navItems = computed(() => {
-  if (adminSession.isSuperAdmin) return allNavItems
-  return allNavItems.filter((item) => {
-    if (!item.permission) return true
-    return adminSession.hasPermission(item.permission)
-  })
+const allNavItems = allNavGroups.flatMap((group) => group.children)
+
+function canAccessNavItem(item: NavItem) {
+  if (adminSession.isSuperAdmin) return true
+  if (!item.permission) return true
+  return adminSession.hasPermission(item.permission)
+}
+
+const navGroups = computed(() => {
+  return allNavGroups
+    .map((group) => ({
+      ...group,
+      children: group.children.filter((item) => canAccessNavItem(item)),
+    }))
+    .filter((group) => group.children.length > 0)
+})
+
+const activeMenu = computed(() => {
+  const currentPath = route.path
+  const matchedItem = allNavItems
+    .slice()
+    .sort((a, b) => b.to.length - a.to.length)
+    .find((item) => currentPath === item.to || currentPath.startsWith(`${item.to}/`))
+
+  return matchedItem?.to || currentPath
+})
+
+const defaultOpeneds = computed(() => {
+  const activeGroup = allNavGroups.find((group) =>
+    group.children.some((item) => item.to === activeMenu.value)
+  )
+
+  return activeGroup ? [activeGroup.index] : []
 })
 
-const activeMenu = computed(() => route.path)
 const adminName = computed(() => adminSession.nickname || adminSession.username || '管理员')
 const supportStatus = computed(() => adminSession.supportStatus || 'offline')
 const hasChatPermission = computed(() => adminSession.hasPermission('chat:view'))
@@ -124,15 +206,28 @@ async function handleLogout() {
 
       <el-menu
         :default-active="activeMenu"
+        :default-openeds="defaultOpeneds"
         :collapse="isCollapsed"
         :collapse-transition="false"
+        unique-opened
         router
         class="admin-menu"
       >
-        <el-menu-item v-for="item in navItems" :key="item.to" :index="item.to">
-          <el-icon><component :is="item.icon" /></el-icon>
-          <template #title>{{ item.label }}</template>
-        </el-menu-item>
+        <el-sub-menu
+          v-for="group in navGroups"
+          :key="group.index"
+          :index="group.index"
+          popper-class="admin-menu-popper"
+        >
+          <template #title>
+            <el-icon><component :is="group.icon" /></el-icon>
+            <span>{{ group.label }}</span>
+          </template>
+          <el-menu-item v-for="item in group.children" :key="item.to" :index="item.to">
+            <el-icon><component :is="item.icon" /></el-icon>
+            <template #title>{{ item.label }}</template>
+          </el-menu-item>
+        </el-sub-menu>
       </el-menu>
     </aside>
 
@@ -259,6 +354,11 @@ async function handleLogout() {
 }
 
 .admin-menu {
+  --el-menu-bg-color: transparent;
+  --el-menu-text-color: #bfcbd9;
+  --el-menu-active-color: #409eff;
+  --el-menu-hover-bg-color: #263445;
+
   flex: 1;
   min-height: 0;
   border-right: none;
@@ -271,6 +371,22 @@ async function handleLogout() {
   width: 100%;
 }
 
+:deep(.el-menu) {
+  background-color: transparent;
+}
+
+:deep(.el-sub-menu__title) {
+  color: #bfcbd9;
+}
+
+:deep(.el-sub-menu__title:hover) {
+  background-color: #263445;
+}
+
+:deep(.el-sub-menu.is-active > .el-sub-menu__title) {
+  color: #409eff;
+}
+
 :deep(.el-menu-item) {
   color: #bfcbd9;
 }
@@ -284,6 +400,43 @@ async function handleLogout() {
   background-color: #263445;
 }
 
+:deep(.el-menu--inline) {
+  background-color: #263445;
+}
+
+:deep(.el-menu--inline .el-menu-item) {
+  height: 46px;
+  background-color: #263445;
+  font-size: 14px;
+}
+
+:deep(.el-menu--inline .el-menu-item:hover),
+:deep(.el-menu--inline .el-menu-item.is-active) {
+  background-color: #1f2d3d;
+}
+
+:global(.admin-menu-popper) {
+  --el-menu-bg-color: #304156;
+  --el-menu-text-color: #bfcbd9;
+  --el-menu-active-color: #409eff;
+  --el-menu-hover-bg-color: #263445;
+}
+
+:global(.admin-menu-popper .el-menu) {
+  border-right: none;
+  background-color: #304156;
+}
+
+:global(.admin-menu-popper .el-menu-item) {
+  color: #bfcbd9;
+}
+
+:global(.admin-menu-popper .el-menu-item:hover),
+:global(.admin-menu-popper .el-menu-item.is-active) {
+  color: #409eff;
+  background-color: #263445;
+}
+
 .admin-workspace {
   flex: 1;
   min-width: 0;