fix: 顶栏颜色跟随小程序主题并保留跟随系统

src/pages/index/index.tsx

@@ -6,6 +6,7 @@ import { CATEGORIES } from '../../utils/productConfig'
 import { useThemeContext } from '../../context/ThemeContext'
 import { useSafeArea } from '../../hooks/useSafeArea'
 import { useStatusBar } from '../../hooks/useStatusBar'
+import ThemedPageMeta from '../../components/ThemedPageMeta'
 
 // 成品展示配图（从 img 里取对应实物图）
 const SHOWCASE_LIST = [
@@ -48,6 +49,7 @@ export default function Index() {
 
   return (
     <View className={`theme-${resolvedTheme}`}>
+      <ThemedPageMeta />
       <View className='index-page'>
 
         {/* 顶部标题栏 */}