tCacheStats() {
            return {
                cachedSlides: slideFrameCache.size,
                loadingSlides: loadingSlides.size,
                totalSlides: totalSlides,
                cacheRatio: (slideFrameCache.size / totalSlides * 100).toFixed(1) + '%'
            };
        }

        // 智能缓存管理 - 限制缓存数量以节省内存
        function manageCacheSize() {
            const maxCacheSize = Math.min(10, totalSlides); // 最多缓存10个幻灯片

            if (slideF