diff --git a/src/lib/constants/index.ts b/src/lib/constants/index.ts
index e7f9e0a..db37249 100644
--- a/src/lib/constants/index.ts
+++ b/src/lib/constants/index.ts
@@ -1,5 +1,6 @@
 export { COMPANY_INFO } from './company';
-export { NAVIGATION, type NavigationItem } from './navigation';
+export { NAVIGATION, NAVIGATION_V2, MEGA_DROPDOWN_DATA } from './navigation';
+export type { NavigationItem, NavigationItemV2, MegaDropdownItem, MegaDropdownData } from './navigation';
 export { STATS, type StatItem } from './stats';
 export { SERVICES } from './services';
 export { PRODUCTS } from './products';
diff --git a/src/lib/constants/navigation.ts b/src/lib/constants/navigation.ts
index e6e08dc..4a2f487 100644
--- a/src/lib/constants/navigation.ts
+++ b/src/lib/constants/navigation.ts
@@ -14,3 +14,46 @@ export const NAVIGATION: NavigationItem[] = [
   { id: 'news', label: '新闻动态', href: '/' },
   { id: 'contact', label: '联系', href: '/contact' },
 ];
+
+export interface NavigationItemV2 {
+  id: string;
+  label: string;
+  href: string;
+  hasDropdown?: boolean;
+  dropdownKey?: string;
+}
+
+export interface MegaDropdownItem {
+  id: string;
+  title: string;
+  description: string;
+  href: string;
+}
+
+export interface MegaDropdownData {
+  [key: string]: MegaDropdownItem[];
+}
+
+export const NAVIGATION_V2: NavigationItemV2[] = [
+  { id: 'products', label: '产品', href: '/products', hasDropdown: true, dropdownKey: 'products' },
+  { id: 'solutions', label: '解决方案', href: '/solutions', hasDropdown: true, dropdownKey: 'solutions' },
+  { id: 'services', label: '服务', href: '/services' },
+  { id: 'cases', label: '案例', href: '/cases' },
+  { id: 'about', label: '关于我们', href: '/about' },
+  { id: 'contact', label: '联系我们', href: '/contact' },
+];
+
+export const MEGA_DROPDOWN_DATA: MegaDropdownData = {
+  products: [
+    { id: 'erp', title: 'ERP 管理系统', description: '财务·采购·销售·库存·生产', href: '/products/erp' },
+    { id: 'crm', title: 'CRM 客户管理', description: '线索·商机·合同·服务', href: '/products/crm' },
+    { id: 'bi', title: 'BI 数据平台', description: '报表·仪表盘·预测·决策', href: '/products/bi' },
+    { id: 'cms', title: 'CMS 内容平台', description: '建站·运营·分发·分析', href: '/products/cms' },
+  ],
+  solutions: [
+    { id: 'manufacturing', title: '制造业', description: '智能制造·MES·质量管控', href: '/solutions/manufacturing' },
+    { id: 'retail', title: '零售业', description: '全渠道·会员·精准营销', href: '/solutions/retail' },
+    { id: 'education', title: '教育行业', description: '招生·教学·学情分析', href: '/solutions/education' },
+    { id: 'healthcare', title: '医疗健康', description: '临床·运营·患者服务', href: '/solutions/healthcare' },
+  ],
+};