:root{--primary-color:#e74c3c;--secondary-color:#3498db;--text-color:#333;--bg-color:#f5f5f5;--card-bg:#fff;--border-color:#ddd;--shadow:0 2px 8px rgba(0,0,0,0.1);--transition:all 0.3s ease;}*{margin:0;padding:0;box-sizing:border-box;}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.6;color:var(--text-color);background:var(--bg-color);font-size:16px;}.container{max-width:1200px;margin:0 auto;padding:0 20px;}a{text-decoration:none;color:inherit;transition:var(--transition);}a:hover{color:var(--primary-color);}ul,ol{list-style:none;}img{max-width:100%;height:auto;display:block;}.site-header{background:var(--card-bg);box-shadow:var(--shadow);position:sticky;top:0;z-index:100;}.nav-main{display:flex;flex-wrap:nowrap;justify-content:space-between;align-items:center;padding:15px 0;gap:20px;}.logo{font-size:24px;font-weight:bold;color:var(--primary-color);white-space:nowrap;flex-shrink:0;}.nav-links{display:flex;flex-wrap:nowrap;gap:20px;align-items:center;}.nav-links a{padding:8px 16px;border-radius:4px;transition:var(--transition);white-space:nowrap;font-size:15px;}.nav-links a:hover{background:var(--primary-color);color:#fff;}.breadcrumb{background:var(--card-bg);padding:12px 0;font-size:14px;color:#666;margin-bottom:20px;}.breadcrumb a{color:var(--primary-color);}.breadcrumb a:hover{text-decoration:underline;}main{padding:40px 20px;}.hero{background:var(--card-bg);padding:40px;border-radius:8px;margin-bottom:40px;box-shadow:var(--shadow);text-align:center;}.hero h1{font-size:32px;margin-bottom:20px;color:var(--primary-color);line-height:1.4;}.hero .intro{font-size:18px;line-height:1.8;color:#555;margin-bottom:15px;}.hero .tags{font-size:14px;color:#888;}.section{margin-bottom:50px;}.section h2{font-size:28px;margin-bottom:25px;padding-bottom:10px;border-bottom:3px solid var(--primary-color);color:var(--text-color);}.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:25px;}.video-card{background:var(--card-bg);padding:25px;border-radius:8px;box-shadow:var(--shadow);transition:var(--transition);}.video-card:hover{transform:translateY(-5px);box-shadow:0 4px 16px rgba(0,0,0,0.15);}.video-card h3{font-size:20px;margin-bottom:10px;color:var(--text-color);}.video-card h3 a:hover{color:var(--primary-color);}.video-card .meta{font-size:13px;color:#888;margin-bottom:10px;}.video-card .oneline{font-size:15px;line-height:1.6;color:#555;margin-bottom:10px;}.video-card .summary{font-size:14px;line-height:1.7;color:#666;margin-top:10px;}.links-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px;margin-bottom:30px;}.link-card{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:#fff;padding:30px;border-radius:8px;text-align:center;transition:var(--transition);}.link-card:hover{transform:translateY(-5px);box-shadow:0 6px 20px rgba(0,0,0,0.2);color:#fff;}.link-card h3{font-size:22px;margin-bottom:10px;}.link-card p{font-size:14px;opacity:0.9;}h1{font-size:36px;margin-bottom:20px;color:var(--text-color);}.page-desc{font-size:16px;line-height:1.8;color:#666;margin-bottom:30px;padding:20px;background:var(--card-bg);border-radius:8px;border-left:4px solid var(--primary-color);}.notice{background:#fff3cd;border:1px solid #ffc107;border-radius:6px;padding:20px;margin-bottom:30px;}.notice p{margin-bottom:10px;color:#856404;line-height:1.8;}.notice a{color:var(--primary-color);font-weight:bold;}.video-list{display:flex;flex-direction:column;gap:25px;}.video-item{background:var(--card-bg);padding:30px;border-radius:8px;box-shadow:var(--shadow);position:relative;transition:var(--transition);}.video-item:hover{box-shadow:0 4px 16px rgba(0,0,0,0.15);}.video-item .rank{position:absolute;top:20px;left:20px;background:var(--primary-color);color:#fff;width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:bold;}.video-item h2{font-size:24px;margin-bottom:12px;margin-left:60px;}.video-item .meta{font-size:14px;color:#888;margin-bottom:12px;margin-left:60px;}.video-item .oneline{font-size:16px;line-height:1.7;color:#555;margin-bottom:10px;margin-left:60px;}.video-item .tags{font-size:13px;color:#999;margin-left:60px;}.video-detail{background:var(--card-bg);padding:40px;border-radius:8px;box-shadow:var(--shadow);}.video-detail h1{font-size:38px;margin-bottom:25px;color:var(--text-color);border-bottom:3px solid var(--primary-color);padding-bottom:15px;}.meta-info{background:#f8f9fa;padding:25px;border-radius:6px;margin-bottom:30px;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:15px;}.meta-info p{font-size:15px;line-height:1.8;color:#555;}.meta-info strong{color:var(--text-color);margin-right:8px;}.highlight{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;padding:25px;border-radius:8px;margin-bottom:30px;}.highlight p{font-size:18px;line-height:1.8;font-weight:500;}.summary,.review{margin-bottom:30px;}.summary h2,.review h2{font-size:24px;margin-bottom:15px;color:var(--text-color);}.summary p,.review p{font-size:16px;line-height:1.9;color:#555;text-align:justify;}.related{margin-top:50px;padding-top:30px;border-top:2px solid var(--border-color);}.related h2{font-size:26px;margin-bottom:25px;color:var(--text-color);}@media (max-width:768px){.nav-main{padding:10px 0;gap:10px;}.logo{font-size:18px;}.nav-links{gap:0;flex:1 1 0;min-width:0;}.nav-links a{flex:1 1 0;min-width:0;text-align:center;padding:8px 4px;font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}.hero{padding:25px 20px;}.hero h1{font-size:24px;}.hero .intro{font-size:15px;}.section h2{font-size:22px;}.video-grid{grid-template-columns:1fr;gap:20px;}.video-card{padding:20px;}h1{font-size:28px;}.video-detail{padding:25px 20px;}.video-detail h1{font-size:26px;}.meta-info{grid-template-columns:1fr;padding:20px;}.video-item{padding:20px;}.video-item .rank{width:35px;height:35px;font-size:16px;top:15px;left:15px;}.video-item h2{font-size:20px;margin-left:55px;}.video-item .meta,.video-item .oneline,.video-item .tags{margin-left:55px;}}@media (max-width:480px){.container{padding:0 15px;}main{padding:20px 15px;}.hero h1{font-size:20px;}.hero .intro{font-size:14px;}}