body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial;background:#f5f5f5}
.hero{height:70vh;display:flex;align-items:center;justify-content:center;background:#000}
#slider{width:90vw;height:60vh;position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center}
.arrow{position:absolute;top:50%;transform:translateY(-50%);width:40px;height:40px;background:rgba(255,255,255,.7);border-radius:20px;display:flex;align-items:center;justify-content:center;font-size:24px;color:#333;cursor:pointer;user-select:none}
.arrow.left{left:12px}
.arrow.right{right:12px}
.footer{padding:12px;text-align:center;color:#555}
.login{max-width:420px;margin:48px auto;padding:24px;border:1px solid #ddd;border-radius:8px;background:#fff;box-shadow:0 2px 10px rgba(0,0,0,.1)}
.admin{width:80%;max-width:1200px;margin:48px auto;padding:32px;border:1px solid #e0e0e0;border-radius:12px;background:#fff;box-shadow:0 4px 20px rgba(0,0,0,.08)}
.login input{display:block;width:100%;padding:12px;margin:8px 0;border:1px solid #ddd;border-radius:6px;font-size:14px}
.login input:focus{outline:none;border-color:#4CAF50;box-shadow:0 0 0 2px rgba(76,175,80,.2)}
.login button,.admin button{padding:12px 24px;background:#4CAF50;color:#fff;border:none;border-radius:6px;font-size:14px;cursor:pointer;transition:background .2s}
.login button:hover,.admin button:hover{background:#45a049}
.admin input,.admin select{padding:8px 12px;border:1px solid #ddd;border-radius:6px;font-size:14px}
.admin input:focus,.admin select:focus{outline:none;border-color:#4CAF50;box-shadow:0 0 0 2px rgba(76,175,80,.2)}
.error{color:#c00;margin-top:8px}
#thumb-marquee{height:130px;background:#111;display:flex;align-items:center;overflow:hidden}
#thumb-marquee .item{width:120px;height:120px;flex:0 0 120px;margin:0 8px;background:#222;background-size:cover;background-position:center;border-radius:6px;cursor:pointer;transition:transform .2s, opacity .3s}
#thumb-marquee .item:hover{transform:scale(1.03)}
#thumb-marquee .item:not(.loaded){opacity:0.6;animation:loadingPulse 1.5s infinite}
@keyframes loadingPulse{0%{opacity:0.6}50%{opacity:0.8}100%{opacity:0.6}}
.admin h1{color:#333;margin-bottom:24px;font-size:28px;font-weight:600}
.admin h3{color:#555;margin:24px 0 12px 0;font-size:18px;font-weight:500}
.admin a{color:#4CAF50;text-decoration:none;transition:color .2s}
.admin a:hover{color:#45a049;text-decoration:underline}
.admin table{width:100%;border-collapse:collapse;margin-top:16px;background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,.05)}
.admin th{background:#f8f9fa;padding:16px 12px;text-align:left;font-weight:600;color:#555;border-bottom:2px solid #e0e0e0}
.admin td{padding:12px;border-bottom:1px solid #f0f0f0}
.admin tr:hover{background:#fafafa}
.admin .nav-menu{background:#f8f9fa;padding:16px;margin:-32px -32px 24px -32px;border-bottom:1px solid #e0e0e0}
.admin .nav-menu a{margin-right:16px;font-weight:500}
.admin .stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin:24px 0}
.admin .stats-card{background:#f8f9fa;padding:20px;border-radius:8px;border-left:4px solid #4CAF50}
.admin .stats-card h4{margin:0 0 8px 0;color:#666;font-size:14px;font-weight:500}
.admin .stats-card .number{font-size:24px;font-weight:600;color:#333}
.form-group{margin-bottom:16px}
.form-group label{display:block;margin-bottom:6px;color:#555;font-weight:500}
.form-group input,.form-group select{width:100%;max-width:300px}

/* 图片加载优化 */
#slider img{will-change:opacity;contain:layout style paint}
#thumb-marquee .item{contain:layout style paint}

/* 懒加载动画 */
.lazy-load{opacity:0;transition:opacity .3s ease}
.lazy-load.loaded{opacity:1}