feat(layout): 重构布局组件体系与数据层

- 重构 Header 导航、Footer 页脚、MobileMenu 移动端菜单
- 新增 MobileTabBar 移动端底部导航栏
- 更新 MegaDropdown 大型下拉导航
- 重构 SEO 结构化数据组件
- 更新数据层常量 (products, services, solutions, navigation 等)
- 新增 useCountUp 数字递增 Hook
- 修复 .gitignore 中 src/lib 被错误忽略的问题

src/hooks/use-swipe-gesture.tsx

@@ -200,7 +200,7 @@ export function SwipeNavigation({
             className={cn(
               'fixed bottom-24 left-1/2 -translate-x-1/2 z-50',
               'px-4 py-2 rounded-full shadow-lg backdrop-blur-md',
-              'bg-[var(--color-primary)] text-white text-sm font-medium',
+              'bg-[var(--color-brand)] text-white text-sm font-medium',
               'flex items-center gap-2 pointer-events-none'
             )}
           >
@@ -234,13 +234,13 @@ export function SwipeNavigation({
               </p>
               <div className="flex items-center justify-center gap-4 mt-2">
                 {prevRoute && (
-                  <div className="flex items-center gap-1 text-[var(--color-brand-primary)]">
+                  <div className="flex items-center gap-1 text-[var(--color-brand)]">
                     <ArrowLeft className="w-3 h-3" />
                     <span className="text-xs">{prevLabel}</span>
                   </div>
                 )}
                 {nextRoute && (
-                  <div className="flex items-center gap-1 text-[var(--color-brand-primary)]">
+                  <div className="flex items-center gap-1 text-[var(--color-brand)]">
                     <span className="text-xs">{nextLabel}</span>
                     <ArrowRight className="w-3 h-3" />
                   </div>
@@ -338,7 +338,7 @@ export function PullToRefresh({ onRefresh, children, className }: PullToRefreshP
             className={cn(
               'w-6 h-6 transition-colors',
               pullDistance > 60
-                ? 'text-[var(--color-brand-primary)]'
+                ? 'text-[var(--color-brand)]'
                 : 'text-[var(--color-text-subtle)]'
             )}
             fill="none"