meCache.size - maxCacheSize + 1);
                toRemove.forEach(index => {
                    const iframe = slideFrameCache.get(index);
                    if (iframe && iframe !== currentVisibleFrame) {
                        if (iframe.parentNode) {
                            iframe.parentNode.removeChild(iframe);
                        }
                        slideFrameCache.delete(index);
                        console.log(`移除缓存: 幻灯片 ${index + 1}`);
                    }
       