diff --git a/src/app/(main)/dashboard/page.tsx b/src/app/(main)/dashboard/page.tsx
index 6fc1804..725f4d5 100644
--- a/src/app/(main)/dashboard/page.tsx
+++ b/src/app/(main)/dashboard/page.tsx
@@ -932,7 +932,7 @@ export default function DashboardPage() {
             value={fmtInt(periodData?.coins.reward_video_coin_total)}
             delta={rewardVideoCoinRatio.value}
             deltaTone={rewardVideoCoinRatio.tone}
-            hint="激励视频金币已按产品口径计入领券奖励金币，这里单独展示来源占比。"
+            hint="独立统计激励视频发放，不再重复计入领券奖励。"
           />
           <StatCard
             title="常规任务金币"
@@ -955,7 +955,7 @@ export default function DashboardPage() {
             实际提现兑付 <b>{fmtCents(periodData?.cash.withdraw_success_cents)}</b>。
             累计已发放 <b>{fmtCoinAmount(data.coins.granted_total)}</b> 金币但累计真实提现仅
             <b>{fmtCents(data.cash.withdraw_success_cents)}</b>，发放与现金兑付背离属正常（金币沉淀/过期）；
-            需盯紧各来源占比突变与异常领取，防薅羊毛。
+            邀请奖励、后台手动加金币、福利页/老版本未打标签信息流不进入这 4 项，需盯紧各来源占比突变与异常领取。
           </div>
         </div>
       </section>
diff --git a/src/app/(main)/layout.tsx b/src/app/(main)/layout.tsx
index cccada5..c9046ed 100644
--- a/src/app/(main)/layout.tsx
+++ b/src/app/(main)/layout.tsx
@@ -12,7 +12,6 @@ import {
   HeartOutlined,
   LogoutOutlined,
   MessageOutlined,
-  MobileOutlined,
   MoneyCollectOutlined,
   NotificationOutlined,
   ProfileOutlined,
@@ -21,26 +20,66 @@ import {
   TeamOutlined,
   UserOutlined,
 } from '@ant-design/icons';
-import { Avatar, Dropdown, Layout, Menu } from 'antd';
+import { Avatar, Dropdown, Layout, Tooltip } from 'antd';
 import { clearAuth, getAdmin, getToken } from '@/lib/auth';
 import type { AdminInfo } from '@/lib/types';
 
 const { Sider, Header, Content } = Layout;
 
-const MENU = [
-  { key: '/dashboard', icon: <DashboardOutlined />, label: '数据大盘' },
-  { key: '/users', icon: <UserOutlined />, label: '用户管理' },
-  { key: '/devices', icon: <MobileOutlined />, label: '设备管理' },
-  { key: '/device-liveness', icon: <HeartOutlined />, label: '设备存活' },
-  { key: '/withdraws', icon: <MoneyCollectOutlined />, label: '提现管理' },
-  { key: '/price-reports', icon: <FlagOutlined />, label: '低价审核' },
-  { key: '/comparison-records', icon: <ProfileOutlined />, label: '比价记录' },
-  { key: '/feedbacks', icon: <MessageOutlined />, label: '用户反馈' },
-  { key: '/coupon-data', icon: <GiftOutlined />, label: '领券数据' },
-  { key: '/ad-revenue', icon: <NotificationOutlined />, label: '广告配置' },
-  { key: '/ad-revenue-report', icon: <BarChartOutlined />, label: '广告收益' },
-  { key: '/cps', icon: <ShareAltOutlined />, label: 'CPS 分发' },
-  { key: '/config', icon: <SettingOutlined />, label: '系统配置' },
+type NavItem = {
+  key: string;
+  icon: React.ReactNode;
+  label: string;
+  superOnly?: boolean;
+};
+
+type NavGroup =
+  | (NavItem & { children?: never })
+  | {
+      key: string;
+      icon: React.ReactNode;
+      label: string;
+      children: NavItem[];
+      superOnly?: boolean;
+    };
+
+const hasChildren = (group: NavGroup): group is NavGroup & { children: NavItem[] } =>
+  Array.isArray(group.children);
+
+const NAV_GROUPS: NavGroup[] = [
+  {
+    key: 'dashboard',
+    icon: <DashboardOutlined />,
+    label: '看板',
+    children: [
+      { key: '/dashboard', icon: <DashboardOutlined />, label: '数据大盘' },
+      { key: '/coupon-data', icon: <GiftOutlined />, label: '领券数据' },
+      { key: '/ad-revenue-report', icon: <BarChartOutlined />, label: '广告收益' },
+      { key: '/comparison-records', icon: <ProfileOutlined />, label: '比价记录' },
+      { key: '/cps', icon: <ShareAltOutlined />, label: 'CPS收益' },
+      { key: '/device-liveness', icon: <HeartOutlined />, label: '设备存活' },
+    ],
+  },
+  {
+    key: 'reward-review',
+    icon: <MoneyCollectOutlined />,
+    label: '奖励审核',
+    children: [
+      { key: '/withdraws', icon: <MoneyCollectOutlined />, label: '提现审核' },
+      { key: '/price-reports', icon: <FlagOutlined />, label: '低价审核' },
+      { key: '/feedbacks', icon: <MessageOutlined />, label: '用户反馈' },
+    ],
+  },
+  {
+    key: 'data-config',
+    icon: <SettingOutlined />,
+    label: '数据配置',
+    children: [
+      { key: '/config', icon: <SettingOutlined />, label: '系统配置' },
+      { key: '/ad-revenue', icon: <NotificationOutlined />, label: '广告配置' },
+      { key: '/users', icon: <UserOutlined />, label: '用户管理' },
+    ],
+  },
   { key: '/admins', icon: <TeamOutlined />, label: '管理员', superOnly: true },
   { key: '/event-logs', icon: <DatabaseOutlined />, label: '埋点日志' },
   { key: '/audit-logs', icon: <FileSearchOutlined />, label: '审计日志' },
@@ -50,6 +89,7 @@ export default function MainLayout({ children }: { children: React.ReactNode })
   const router = useRouter();
   const pathname = usePathname();
   const [admin, setAdmin] = useState<AdminInfo | null>(null);
+  const [collapsed, setCollapsed] = useState(false);
 
   useEffect(() => {
     if (!getToken()) {
@@ -61,14 +101,19 @@ export default function MainLayout({ children }: { children: React.ReactNode })
 
   if (!admin) return null; // 守卫期间不闪烁内容
 
-  const items = MENU.filter((m) => !m.superOnly || admin.role === 'super_admin').map((m) => ({
-    key: m.key,
-    icon: m.icon,
-    label: m.label,
-  }));
-
-  // 选中态:取路径一级(/users/123 → /users)
+  // 选中态:取路径一级(/users/123 -> /users)
   const selectedKey = '/' + (pathname.split('/')[1] || 'dashboard');
+  const canShow = (item: { superOnly?: boolean }) => !item.superOnly || admin.role === 'super_admin';
+  const visibleGroups = NAV_GROUPS
+    .filter(canShow)
+    .map((group) => {
+      if (!hasChildren(group)) return group;
+      return { ...group, children: group.children.filter(canShow) };
+    })
+    .filter((group) => !hasChildren(group) || group.children.length > 0);
+  const flatNavItems = visibleGroups.flatMap((group) =>
+    hasChildren(group) ? group.children : [group],
+  );
 
   const logout = () => {
     clearAuth();
@@ -77,7 +122,15 @@ export default function MainLayout({ children }: { children: React.ReactNode })
 
   return (
     <Layout style={{ minHeight: '100vh' }}>
-      <Sider theme="dark" breakpoint="lg" collapsible>
+      <Sider
+        theme="dark"
+        breakpoint="lg"
+        collapsible
+        collapsed={collapsed}
+        collapsedWidth={72}
+        width={220}
+        onCollapse={setCollapsed}
+      >
         <div
           style={{
             height: 48,
@@ -90,13 +143,61 @@ export default function MainLayout({ children }: { children: React.ReactNode })
         >
           运营后台
         </div>
-        <Menu
-          theme="dark"
-          mode="inline"
-          selectedKeys={[selectedKey]}
-          items={items}
-          onClick={({ key }) => router.push(key)}
-        />
+        <nav className={`side-nav${collapsed ? ' side-nav-collapsed' : ''}`} aria-label="后台导航">
+          {collapsed
+            ? flatNavItems.map((item) => (
+                <Tooltip key={item.key} title={item.label} placement="right">
+                  <button
+                    type="button"
+                    className={`nav-icon-button${selectedKey === item.key ? ' is-selected' : ''}`}
+                    onClick={() => router.push(item.key)}
+                    aria-label={item.label}
+                  >
+                    {item.icon}
+                  </button>
+                </Tooltip>
+              ))
+            : visibleGroups.map((group) => {
+                const isGroup = hasChildren(group);
+                const groupSelected = isGroup
+                  ? group.children.some((child) => child.key === selectedKey)
+                  : selectedKey === group.key;
+                if (!isGroup) {
+                  return (
+                    <button
+                      key={group.key}
+                      type="button"
+                      className={`nav-primary nav-direct${groupSelected ? ' is-selected' : ''}`}
+                      onClick={() => router.push(group.key)}
+                    >
+                      <span className="nav-primary-icon">{group.icon}</span>
+                      <span>{group.label}</span>
+                    </button>
+                  );
+                }
+                return (
+                  <section key={group.key} className={`nav-group${groupSelected ? ' is-active' : ''}`}>
+                    <div className="nav-primary">
+                      <span className="nav-primary-icon">{group.icon}</span>
+                      <span>{group.label}</span>
+                    </div>
+                    <div className="nav-children">
+                      {group.children.map((child) => (
+                        <button
+                          key={child.key}
+                          type="button"
+                          className={`nav-child${selectedKey === child.key ? ' is-selected' : ''}`}
+                          onClick={() => router.push(child.key)}
+                        >
+                          <span className="nav-child-icon">{child.icon}</span>
+                          <span>{child.label}</span>
+                        </button>
+                      ))}
+                    </div>
+                  </section>
+                );
+              })}
+        </nav>
       </Sider>
       <Layout>
         <Header
@@ -122,6 +223,119 @@ export default function MainLayout({ children }: { children: React.ReactNode })
         </Header>
         <Content style={{ margin: 24 }}>{children}</Content>
       </Layout>
+      <style jsx global>{`
+        .side-nav {
+          display: flex;
+          flex-direction: column;
+          gap: 4px;
+          padding: 0 10px 14px;
+        }
+        .nav-group {
+          padding: 6px 0 8px;
+        }
+        .nav-group + .nav-group,
+        .nav-group + .nav-direct,
+        .nav-direct + .nav-direct {
+          margin-top: 4px;
+        }
+        .nav-primary {
+          display: flex;
+          align-items: center;
+          gap: 10px;
+          min-height: 36px;
+          padding: 0 12px;
+          color: rgba(255, 255, 255, 0.88);
+          font-size: 14px;
+          font-weight: 600;
+          letter-spacing: 0;
+        }
+        .nav-primary-icon,
+        .nav-child-icon {
+          display: inline-flex;
+          align-items: center;
+          justify-content: center;
+          color: rgba(255, 255, 255, 0.72);
+          font-size: 16px;
+        }
+        .nav-direct,
+        .nav-child,
+        .nav-icon-button {
+          border: 0;
+          cursor: pointer;
+          font: inherit;
+          text-align: left;
+        }
+        .nav-direct {
+          width: 100%;
+          border-radius: 8px;
+          background: transparent;
+        }
+        .nav-direct:hover,
+        .nav-direct.is-selected {
+          background: #1677ff;
+          color: #fff;
+        }
+        .nav-direct:hover .nav-primary-icon,
+        .nav-direct.is-selected .nav-primary-icon {
+          color: #fff;
+        }
+        .nav-children {
+          display: flex;
+          flex-direction: column;
+          gap: 2px;
+          margin-left: 34px;
+          margin-top: -2px;
+          padding-right: 2px;
+        }
+        .nav-child {
+          display: flex;
+          align-items: center;
+          gap: 8px;
+          width: 100%;
+          min-height: 34px;
+          border-radius: 8px;
+          background: transparent;
+          color: rgba(255, 255, 255, 0.72);
+          font-size: 13px;
+          padding: 0 10px;
+        }
+        .nav-child:hover {
+          background: rgba(255, 255, 255, 0.08);
+          color: #fff;
+        }
+        .nav-child.is-selected {
+          background: #1677ff;
+          color: #fff;
+          font-weight: 600;
+        }
+        .nav-child.is-selected .nav-child-icon {
+          color: #fff;
+        }
+        .nav-group.is-active .nav-primary {
+          color: #fff;
+        }
+        .side-nav-collapsed {
+          align-items: center;
+          gap: 6px;
+          padding: 0 8px 14px;
+        }
+        .nav-icon-button {
+          display: inline-flex;
+          align-items: center;
+          justify-content: center;
+          width: 40px;
+          height: 40px;
+          border-radius: 8px;
+          background: transparent;
+          color: rgba(255, 255, 255, 0.72);
+          font-size: 17px;
+        }
+        .nav-icon-button:hover,
+        .nav-icon-button.is-selected {
+          background: #1677ff;
+          color: #fff;
+        }
+      `}</style>
     </Layout>
   );
 }