()
| 125 | |
| 126 | // 滚动优化 |
| 127 | setupScrollOptimization() { |
| 128 | let ticking = false; |
| 129 | |
| 130 | const handleScroll = () => { |
| 131 | if (!ticking) { |
| 132 | requestAnimationFrame(() => { |
| 133 | this.updateScrollEffects(); |
| 134 | ticking = false; |
| 135 | }); |
| 136 | ticking = true; |
| 137 | } |
| 138 | }; |
| 139 | |
| 140 | window.addEventListener('scroll', handleScroll, { passive: true }); |
| 141 | } |
| 142 | |
| 143 | // 更新滚动效果（缓存DOM查询） |
| 144 | updateScrollEffects() { |