/* 性能优化的CSS代码 */

/* 基础样式重置 */
*,*::before,*::after{box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:'Inter',system-ui,-apple-system,sans-serif;background-color:#FFFFFF;margin:0;padding:0}

/* 卡片样式 */
.card{background-color:#fff;border:1px solid #E5E7EB;border-radius:1.25rem;box-shadow:0 4px 12px rgba(0,0,0,.05);transition:all .3s cubic-bezier(.25,.8,.25,1);overflow:hidden;position:relative}.card:hover{box-shadow:0 10px 25px rgba(0,0,0,.1);transform:translateY(-2px)}

/* 渐变背景 */
.highlight-gradient-blue{background:linear-gradient(135deg,rgba(59,130,246,0),rgba(59,130,246,.05))}.highlight-gradient-teal{background:linear-gradient(135deg,rgba(20,184,166,0),rgba(20,184,166,.05))}.highlight-gradient-purple{background:linear-gradient(135deg,rgba(139,92,246,0),rgba(139,92,246,.05))}.highlight-gradient-orange{background:linear-gradient(135deg,rgba(249,115,22,0),rgba(249,115,22,.05))}.highlight-gradient-green{background:linear-gradient(135deg,rgba(34,197,94,0),rgba(34,197,94,.05))}.highlight-gradient-red{background:linear-gradient(135deg,rgba(239,68,68,0),rgba(239,68,68,.05))}.gradient-blue{background:linear-gradient(135deg,rgba(59,130,246,.1),rgba(59,130,246,0))}.gradient-teal{background:linear-gradient(135deg,rgba(20,184,166,.1),rgba(20,184,166,0))}.gradient-purple{background:linear-gradient(135deg,rgba(139,92,246,.1),rgba(139,92,246,0))}.gradient-orange{background:linear-gradient(135deg,rgba(249,115,22,.1),rgba(249,115,22,0))}.gradient-green{background:linear-gradient(135deg,rgba(34,197,94,.1),rgba(34,197,94,0))}.gradient-red{background:linear-gradient(135deg,rgba(239,68,68,.1),rgba(239,68,68,0))}

/* 流程箭头 */
.process-arrow{position:absolute;right:-25px;top:50%;transform:translateY(-50%);color:#CBD5E1;font-size:1.5rem}@media (max-width:768px){.process-arrow{display:none}}

/* 图片模态框 */
.image-modal{position:fixed;top:0;left:0;width:100%;height:100%;background-color:rgba(0,0,0,.8);display:flex;justify-content:center;align-items:center;z-index:1000;opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease}.image-modal.active{opacity:1;visibility:visible}.modal-content{max-width:90%;max-height:90%;object-fit:contain;border-radius:.5rem;box-shadow:0 20px 60px rgba(0,0,0,.5)}.close{position:absolute;top:20px;right:20px;color:#fff;font-size:2rem;cursor:pointer;transition:color .2s ease}.close:hover{color:#ccc}

/* 轮播图样式 */
.carousel{position:relative;width:100%;overflow:hidden;border-radius:.5rem}.carousel-container{display:flex;transition:transform .5s ease}.carousel-item{flex:0 0 100%;width:100%}.carousel-control{position:absolute;top:50%;transform:translateY(-50%);background:rgba(255,255,255,.8);border:none;border-radius:50%;width:40px;height:40px;display:flex;justify-content:center;align-items:center;cursor:pointer;z-index:10;transition:all .2s ease}.carousel-control:hover{background:#fff;box-shadow:0 2px 10px rgba(0,0,0,.2)}.carousel-control.prev{left:10px}.carousel-control.next{right:10px}.carousel-indicators{position:absolute;bottom:10px;left:50%;transform:translateX(-50%);display:flex;gap:8px;z-index:10}.carousel-indicator{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.5);cursor:pointer;transition:all .3s ease}.carousel-indicator.active{background:#fff;width:25px;border-radius:5px}

/* 懒加载图片样式 */
.lazy{opacity:0;transition:opacity .5s ease}.lazy.loaded{opacity:1}img[data-src]{filter:blur(5px);transition:filter .3s ease}img[data-src].loaded{filter:blur(0)}

/* 图片渲染优化 */
img{image-rendering:-webkit-optimize-contrast;image-rendering:crisp-edges;image-rendering:high-quality;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}

/* 视频容器 */
.video-container{position:relative;width:100%;background:#000;border-radius:.5rem;overflow:hidden}.video-container video{width:100%;height:100%;object-fit:contain}

/* 按钮样式 */
.btn{display:inline-flex;align-items:center;justify-content:center;padding:.75rem 1.5rem;border-radius:.5rem;font-weight:600;text-decoration:none;transition:all .2s ease;cursor:pointer;border:none;outline:none}.btn-primary{background:linear-gradient(135deg,#3b82f6,#2563eb);color:#fff}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 4px 12px rgba(59,130,246,.4)}.btn-secondary{background:#f3f4f6;color:#374151}.btn-secondary:hover{background:#e5e7eb}

/* 动画 */
@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}.animate-fade-in{animation:fadeIn .6s ease-out}.animate-pulse{animation:pulse 2s infinite}

/* 响应式断点 */
@media (max-width:640px){.btn{padding:.5rem 1rem;font-size:.875rem}}

/* 性能优化：GPU加速 */
.transform-gpu{transform:translateZ(0);backface-visibility:hidden}

/* 性能优化：will-change */
.will-change-transform{will-change:transform}.will-change-opacity{will-change:opacity}

/* 选择禁用 */
.no-select{user-select:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none}

/* 触摸优化 */
.touch-action-none{touch-action:none}.touch-action-auto{touch-action:auto}

/* 焦点样式 */
.focus-visible:focus-visible{outline:2px solid #3b82f6;outline-offset:2px}.focus-visible:focus{outline:none}

/* 滚动条样式 */
::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:#f1f1f1;border-radius:4px}::-webkit-scrollbar-thumb{background:#c1c1c1;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#a1a1a1}

/* 打印样式 */
@media print{.no-print{display:none!important}body{print-color-adjust:exact;-webkit-print-color-adjust:exact}}