:root{--color-primary:#0a1628;--color-secondary:#0f2744;--color-accent:#00d9a5;--color-accent-dark:#00b386;--color-tertiary:#1a4a6e;--color-text:#e8f4f8;--color-text-muted:#8ba3b8;--color-border:#1e3a5f;--color-card-bg:#0f2744d9;--color-glow:#00d9a540;--font-title:"ZCOOL XiaoWei", serif;--font-body:"Noto Sans SC", sans-serif;--font-display:"Cinzel", serif;--shadow-card:0 8px 32px #0006;--shadow-glow:0 0 20px var(--color-glow)}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-body);background:var(--color-primary);color:var(--color-text);min-height:100vh;line-height:1.6;overflow-x:hidden}body:before{content:"";pointer-events:none;z-index:-1;background:radial-gradient(at 20% 20%,#00d9a514 0%,#0000 50%),radial-gradient(at 80% 80%,#1a4a6e33 0%,#0000 50%),radial-gradient(#0f274499 0%,#0000 70%);width:100%;height:100%;position:fixed;top:0;left:0}.taiji-bg{opacity:.03;pointer-events:none;z-index:-1;background:url("data:image/svg+xml,%3Csvg 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svg{width:100%;height:100%}.logo-text{font-family:var(--font-title);letter-spacing:.1em;font-size:1.75rem}.logo-text span{color:var(--color-accent)}.header-nav{gap:2rem;list-style:none;display:flex}.header-nav a{color:var(--color-text-muted);font-size:.95rem;text-decoration:none;transition:color .3s;position:relative}.header-nav a:after{content:"";background:var(--color-accent);width:0;height:2px;transition:width .3s;position:absolute;bottom:-4px;left:0}.header-nav a:hover{color:var(--color-text)}.header-nav a:hover:after{width:100%}.hero{text-align:center;flex-direction:column;justify-content:center;align-items:center;min-height:70vh;padding:8rem 2rem 4rem;display:flex;position:relative}.hero:before{content:"";pointer-events:none;background:radial-gradient(circle,#00d9a526 0%,#0000 70%);width:600px;height:600px;position:absolute;top:0;left:50%;transform:translate(-50%)}.hero-title{font-family:var(--font-title);background:linear-gradient(135deg, var(--color-text) 0%, var(--color-accent) 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;margin-bottom:1rem;font-size:clamp(3rem,8vw,5rem);animation:.8s fadeInUp}.hero-subtitle{color:var(--color-text-muted);max-width:600px;margin-bottom:2rem;font-size:1.25rem;animation:.8s .2s both fadeInUp}.hero-stats{gap:3rem;margin-top:2rem;animation:.8s .4s both fadeInUp;display:flex}.stat-item{text-align:center}.stat-number{font-family:var(--font-display);color:var(--color-accent);font-size:2.5rem;font-weight:700}.stat-label{color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.1em;font-size:.875rem}.videos{max-width:1400px;margin:0 auto;padding:2rem}.section-subtitle{text-align:center;color:var(--color-text-muted);margin-top:-2rem;margin-bottom:3rem;font-size:1rem}.videos-grid{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem;display:grid}.video-card{color:inherit;background:var(--color-card-bg);border:1px solid var(--color-border);border-radius:12px;text-decoration:none;transition:all .3s;display:block;overflow:hidden}.video-card:hover{box-shadow:var(--shadow-card);border-color:var(--color-accent);transform:translateY(-4px)}.video-thumbnail{aspect-ratio:16/9;background:var(--color-tertiary);justify-content:center;align-items:center;display:flex;position:relative;overflow:hidden}.video-icon{opacity:.5;font-size:3rem}.video-duration{color:#fff;background:#000c;border-radius:4px;padding:2px 6px;font-size:.75rem;font-weight:500;position:absolute;bottom:8px;right:8px}.video-play{opacity:0;background:#00d9a5e6;border-radius:50%;justify-content:center;align-items:center;width:56px;height:56px;transition:opacity .3s;display:flex;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.video-play svg{width:28px;height:28px;color:var(--color-primary);margin-left:3px}.video-card:hover .video-play{opacity:1}.video-info{padding:1rem}.video-title{font-family:var(--font-title);-webkit-line-clamp:2;-webkit-box-orient:vertical;margin-bottom:.5rem;font-size:1rem;line-height:1.4;display:-webkit-box;overflow:hidden}.video-channel{color:var(--color-text-muted);font-size:.8rem}.video-modal{z-index:1000;background:#000000e6;justify-content:center;align-items:center;width:100%;height:100%;padding:2rem;animation:.3s fadeIn;display:flex;position:fixed;top:0;left:0}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.video-modal-content{background:var(--color-primary);border-radius:16px;width:100%;max-width:900px;animation:.3s scaleIn;position:relative;overflow:hidden}@keyframes scaleIn{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}.video-modal-close{cursor:pointer;z-index:10;background:#00000080;border:none;border-radius:50%;justify-content:center;align-items:center;width:40px;height:40px;transition:background .2s;display:flex;position:absolute;top:1rem;right:1rem}.video-modal-close:hover{background:var(--color-accent)}.video-modal-close svg{color:#fff;width:24px;height:24px}.video-modal-player{height:0;padding-bottom:56.25%;position:relative}.video-modal-player iframe{width:100%;height:100%;position:absolute;top:0;left:0}.video-modal-info{padding:1.5rem}.video-modal-info h3{font-family:var(--font-title);margin-bottom:.5rem;font-size:1.25rem}.video-modal-info p{color:var(--color-text-muted);font-size:.9rem}.categories{max-width:1400px;margin:0 auto;padding:2rem}.section-title{font-family:var(--font-title);text-align:center;margin-bottom:3rem;font-size:2rem;position:relative}.section-title:after{content:"";background:var(--color-accent);width:60px;height:3px;margin:1rem auto 0;display:block}.categories-grid{grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:1.5rem;display:grid}.category-card{background:var(--color-card-bg);border:1px solid var(--color-border);border-radius:16px;padding:1.5rem;transition:all .3s;position:relative;overflow:hidden}.category-card:before{content:"";background:linear-gradient(90deg, var(--color-accent), var(--color-tertiary));transform-origin:0;width:100%;height:3px;transition:transform .3s;position:absolute;top:0;left:0;transform:scaleX(0)}.category-card:hover{box-shadow:var(--shadow-card);border-color:var(--color-accent);transform:translateY(-4px)}.category-card:hover:before{transform:scaleX(1)}.category-header{align-items:center;gap:1rem;margin-bottom:1rem;display:flex}.category-icon{width:48px;height:48px;color:var(--color-accent);background:#00d9a51a;border-radius:12px;justify-content:center;align-items:center;font-size:1.5rem;display:flex}.category-title{font-family:var(--font-title);font-size:1.25rem}.category-desc{color:var(--color-text-muted);margin-bottom:1rem;font-size:.875rem}.site-list{list-style:none}.site-item{border-radius:8px;align-items:center;gap:.75rem;padding:.75rem;transition:background .2s;display:flex}.site-item:hover{background:#ffffff0d}.site-icon{background:var(--color-tertiary);border-radius:8px;justify-content:center;align-items:center;width:32px;height:32px;font-size:.875rem;display:flex}.site-info{flex:1;min-width:0}.site-name{white-space:nowrap;text-overflow:ellipsis;font-size:.9rem;font-weight:500;overflow:hidden}.site-desc{color:var(--color-text-muted);white-space:nowrap;text-overflow:ellipsis;font-size:.75rem;overflow:hidden}.site-link{border:1px solid var(--color-border);color:var(--color-text-muted);white-space:nowrap;background:0 0;border-radius:6px;padding:.4rem .75rem;font-size:.75rem;text-decoration:none;transition:all .2s}.site-link:hover{background:var(--color-accent);border-color:var(--color-accent);color:var(--color-primary)}.footer{border-top:1px solid var(--color-border);text-align:center;margin-top:4rem;padding:3rem 2rem}.footer-content{max-width:1400px;margin:0 auto}.footer-logo{font-family:var(--font-title);margin-bottom:1rem;font-size:1.5rem}.footer-logo span{color:var(--color-accent)}.footer-text{color:var(--color-text-muted);font-size:.875rem}.footer-links{justify-content:center;gap:2rem;margin-top:1.5rem;display:flex}.footer-links a{color:var(--color-text-muted);font-size:.875rem;text-decoration:none;transition:color .2s}.footer-links a:hover{color:var(--color-accent)}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@media (width<=768px){.header{padding:1rem}.header-nav{display:none}.hero{padding:6rem 1.5rem 3rem}.hero-stats{gap:1.5rem}.stat-number{font-size:2rem}.categories{padding:1rem}.categories-grid{grid-template-columns:1fr}}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--color-primary)}::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--color-accent)}