PC端的部分适配

src/screens/home/HomeScreen.tsx

@@ -32,6 +32,7 @@ import { PostCard, TabBar, SearchBar } from '../../components/business';
 import { Loading, EmptyState, Text, ImageGallery, ImageGridItem, ResponsiveGrid } from '../../components/common';
 import { HomeStackParamList, RootStackParamList } from '../../navigation/types';
 import { useResponsive, useResponsiveSpacing } from '../../hooks/useResponsive';
+import { SearchScreen } from './SearchScreen';
 
 type NavigationProp = NativeStackNavigationProp<HomeStackParamList, 'Home'> & NativeStackNavigationProp<RootStackParamList>;
 
@@ -84,6 +85,9 @@ export const HomeScreen: React.FC = () => {
   const [postImages, setPostImages] = useState<ImageGridItem[]>([]);
   const [selectedImageIndex, setSelectedImageIndex] = useState(0);
   
+  // 搜索显示状态（用于内嵌搜索页面）
+  const [showSearch, setShowSearch] = useState(false);
+  
   // 用于跟踪当前页面显示的帖子 ID，以便从 store 同步状态
   const postIdsRef = React.useRef<Set<string>>(new Set());
   const inFlightRequestKeysRef = React.useRef<Set<string>>(new Set());
@@ -325,9 +329,9 @@ export const HomeScreen: React.FC = () => {
       })
   ), [handleSwipeTabChange]);
 
-  // 跳转到搜索页
+  // 跳转到搜索页（使用内嵌模式，不再依赖导航）
   const handleSearchPress = () => {
-    navigation.navigate('Search');
+    setShowSearch(true);
   };
 
   // 跳转到帖子详情
@@ -630,6 +634,19 @@ export const HomeScreen: React.FC = () => {
     );
   };
 
+  // 搜索页面内嵌模式
+  if (showSearch) {
+    return (
+      <SafeAreaView style={styles.container} edges={['top']}>
+        <StatusBar barStyle="dark-content" backgroundColor={colors.background.paper} />
+        <SearchScreen
+          onBack={() => setShowSearch(false)}
+        />
+      </SafeAreaView>
+    );
+  }
+  
+  // 正常首页内容
   return (
     <SafeAreaView style={styles.container} edges={['top']}>
       <StatusBar barStyle="dark-content" backgroundColor={colors.background.paper} />
@@ -667,7 +684,20 @@ export const HomeScreen: React.FC = () => {
       </View>
 
       {/* 帖子列表 */}
-      <GestureDetector gesture={swipeGesture}>
+      {isMobile ? (
+        // 移动端：使用 GestureDetector 支持手势切换 Tab
+        <GestureDetector gesture={swipeGesture}>
+          <View style={styles.contentContainer}>
+            {viewMode === 'list' ? (
+              renderListContent()
+            ) : (
+              // 网格模式：使用响应式网格
+              renderResponsiveGrid()
+            )}
+          </View>
+        </GestureDetector>
+      ) : (
+        // 桌面端/平板端：不使用 GestureDetector，避免拦截侧边栏点击
         <View style={styles.contentContainer}>
           {viewMode === 'list' ? (
             renderListContent()
@@ -676,7 +706,7 @@ export const HomeScreen: React.FC = () => {
             renderResponsiveGrid()
           )}
         </View>
-      </GestureDetector>
+      )}
 
       {/* 漂浮发帖按钮 */}
       <TouchableOpacity
@@ -695,9 +725,9 @@ export const HomeScreen: React.FC = () => {
       {/* 图片查看器 */}
       <ImageGallery
         visible={showImageViewer}
-        images={postImages.map(img => ({ 
-          id: img.id || img.url || String(Math.random()), 
-          url: img.url || img.uri || '' 
+        images={postImages.map(img => ({
+          id: img.id || img.url || String(Math.random()),
+          url: img.url || img.uri || ''
         }))}
         initialIndex={selectedImageIndex}
         onClose={() => setShowImageViewer(false)}
@@ -717,6 +747,12 @@ const styles = StyleSheet.create({
   },
   searchWrapper: {
     paddingBottom: spacing.sm,
+    // 移除阴影效果
+    shadowColor: 'transparent',
+    shadowOffset: { width: 0, height: 0 },
+    shadowOpacity: 0,
+    shadowRadius: 0,
+    elevation: 0,
   },
   viewToggleBtn: {
     width: 44,