2

keyBoard/Class/Shop/VC/KBSkinDetailVC.m

@@ -120,6 +120,26 @@ typedef NS_ENUM(NSInteger, KBSkinDetailSection) {
     return [UICollectionViewCell new];
 }
 
+#pragma mark - UICollectionView Delegate
+
+- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {
+    if (indexPath.section != KBSkinDetailSectionGrid) { return; }
+    if (indexPath.item >= self.recommendedThemes.count) { return; }
+    KBShopThemeModel *model = self.recommendedThemes[indexPath.item];
+    NSString *nextThemeId = [model.themeId stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
+    if (nextThemeId.length == 0) { return; }
+    if ([nextThemeId isEqualToString:self.themeId ?: @""]) { return; }
+
+    // 不跳转新页面：直接切换 themeId，重新请求详情并刷新当前页面
+    self.themeId = nextThemeId;
+    self.detailModel = nil;
+    self.tags = @[];
+    [self updateBottomBarAppearance];
+    [self.collectionView setContentOffset:CGPointZero animated:NO];
+    [self.collectionView reloadData];
+    [self fetchThemeDetailIfNeeded];
+}
+
 #pragma mark - UICollectionView DelegateFlowLayout
 
 - (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath {