:root{--primary:#176B8D;--primary-2:#2187AE;--sky:#55AFD3;--sky-light:#A9D9EA;--sky-soft:#E5F3F8;--navy:#123B50;--navy-2:#0B2938;--navy-dark:#071E2A;--accent:#D97945;--accent-soft:#F7E7DB;--bg:#F5F9FA;--bg-2:#EBF2F4;--bg-3:#FAFCFC;--surface:#fff;--text:#203640;--text-2:#60747D;--text-3:#91A0A6;--line:rgba(23,107,141,.10);--line-strong:rgba(23,107,141,.22);--shadow:0 6px 24px rgba(18,59,80,.08);--shadow-hover:0 15px 38px rgba(18,59,80,.14);--radius:10px;--radius-card:14px;--radius-large:20px;--radius-pill:999px;--wrap:1320px}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,"PingFang SC","Microsoft Yahei",sans-serif;line-height:1.6}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.wrap{width:min(var(--wrap),calc(100% - 32px));margin:auto}.topbar{background:var(--navy-dark);color:#dceef5;text-align:center;padding:7px 15px;font-size:13px}.site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.9);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.nav{height:72px;display:flex;align-items:center;gap:28px}.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--navy)}.brand img{width:72px;height:34px;object-fit:cover;border-radius:8px}.desktop-nav{display:flex;gap:22px;flex:1}.desktop-nav a,.nav-actions a{font-size:14px;color:var(--text-2)}.desktop-nav a:hover,.nav-actions a:hover{color:var(--primary)}.nav-actions{display:flex;align-items:center;gap:14px}.btn{display:inline-flex;align-items:center;justify-content:center;background:var(--primary);color:white!important;padding:12px 18px;border-radius:999px;font-weight:700}.btn.secondary{background:white;color:var(--primary)!important;border:1px solid var(--line-strong)}.btn.small{padding:8px 14px}.hero{padding:54px 0 44px}.hero-grid{display:grid;grid-template-columns:1.08fr 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var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow)}.video-card:hover,.live-card:hover,.anchor-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}.video-card,.live-card,.anchor-card{transition:.2s ease}.thumb{display:block;position:relative;overflow:hidden;background:var(--bg-2)}.thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:.2s ease}.video-card:hover .thumb img{transform:scale(1.02)}.play{position:absolute;left:14px;bottom:12px;width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:rgba(255,255,255,.9);color:var(--primary);box-shadow:var(--shadow)}.duration{position:absolute;right:10px;bottom:10px;background:rgba(7,30,42,.82);color:white;padding:3px 7px;border-radius:6px;font-size:12px}.video-body{padding:16px}.video-body h3{margin:6px 0 8px;font-size:17px;line-height:1.35}.video-body p{margin:0;color:var(--text-2);font-size:14px}.meta{display:flex;justify-content:space-between;gap:12px;margin-top:14px;color:var(--text-3);font-size:12px}.dark-section{background:var(--navy-dark);color:white}.dark-section .section-head h2,.dark-section .eyebrow{color:white}.dark-section .section-head p{color:#b7cbd3}.dark-section .video-card,.dark-section .live-card{background:var(--navy-2);border-color:rgba(255,255,255,.08)}.dark-section .video-body p,.dark-section .meta{color:#9fb5bf}.dark-section .video-body h3{color:white}.live-badge{position:absolute;left:10px;top:10px;background:var(--accent);color:white;font-weight:900;padding:5px 9px;border-radius:999px;font-size:11px}.anchor-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}.anchor-card{padding:18px;text-align:center}.anchor-card img{width:92px;height:92px;border-radius:50%;object-fit:cover;margin:0 auto 12px}.anchor-card h3{margin:4px 0}.anchor-card p{color:var(--text-2);font-size:13px}.status{display:inline-block;padding:5px 9px;border-radius:999px;background:var(--sky-soft);color:var(--primary);font-size:11px;font-weight:700}.bento{display:grid;grid-template-columns:1.4fr .8fr .8fr;grid-auto-rows:220px;gap:16px}.bento .panel{position:relative;padding:24px;overflow:hidden}.bento .panel.big{grid-row:span 2}.bento img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.82}.bento .overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,30,42,.06),rgba(7,30,42,.82))}.bento .content{position:absolute;left:22px;right:22px;bottom:20px;color:white}.rank-list{display:grid;gap:10px}.rank-item{display:grid;grid-template-columns:46px 1fr auto;gap:14px;align-items:center;background:white;border:1px solid var(--line);padding:13px 16px;border-radius:12px}.rank-num{font-size:22px;font-weight:900;color:var(--primary)}.two-col{display:grid;grid-template-columns:1.25fr .75fr;gap:22px}.topic-list{display:grid;gap:12px}.topic-card{padding:18px}.topic-card h3{margin:0 0 8px}.topic-card p{margin:0;color:var(--text-2)}.timeline{border-left:2px solid var(--line-strong);padding-left:24px;display:grid;gap:20px}.timeline .item{position:relative}.timeline .item:before{content:'';position:absolute;left:-31px;top:7px;width:12px;height:12px;background:var(--sky);border-radius:50%;border:3px solid var(--bg)}.banner{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:center;background:white;border:1px solid var(--line);border-radius:20px;overflow:hidden}.banner img{width:100%;height:100%;min-height:330px;object-fit:cover}.banner-copy{padding:34px}.banner-copy h2{font-size:34px;line-height:1.2;margin:8px 0 14px}.faq{display:grid;gap:12px}.faq details{background:white;border:1px solid var(--line);border-radius:12px;padding:16px 18px}.page-hero{padding:54px 0 26px}.page-hero h1{font-size:48px;line-height:1.1;margin:8px 0 12px;color:var(--navy-dark)}.page-hero p{max-width:760px;color:var(--text-2)}.feature-list{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.feature{background:white;border:1px solid var(--line);padding:22px;border-radius:14px}.feature h3{margin-top:0}.notice{padding:16px 18px;background:var(--accent-soft);border:1px solid rgba(217,121,69,.18);border-radius:12px;color:#7b4b32}.player{background:#000;border-radius:18px;aspect-ratio:16/9;display:grid;place-items:center;color:white;overflow:hidden}.player video{width:100%;height:100%}footer{margin-top:56px;background:var(--navy-dark);color:#dbe7ec;padding:46px 0 24px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:30px}.footer-grid a{display:block;color:#a9c0ca;margin:7px 0;font-size:14px}.copyright{border-top:1px solid rgba(255,255,255,.08);margin-top:28px;padding-top:18px;color:#88a0aa;font-size:13px}.mobile-bottom{display:none}.poster-row{display:grid;grid-template-columns:2fr 1fr 1fr;gap:16px}.poster-row 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@media(max-width:680px){body{padding-bottom:64px}.wrap{width:min(100% - 22px,var(--wrap))}.nav{height:62px}.nav-actions>a:not(.btn){display:none}.brand img{width:58px}.hero{padding-top:34px}.hero h1{font-size:42px}.hero-grid{gap:24px}.floating-panel{position:static;margin-top:12px}.video-grid,.anchor-grid,.feature-list,.bento,.poster-row,.marquee{grid-template-columns:1fr}.poster-row .video-card:first-child{grid-column:auto}.section-head{align-items:start;flex-direction:column}.section-head h2{font-size:26px}.page-hero h1{font-size:40px}.footer-grid{grid-template-columns:1fr}.mobile-bottom{position:fixed;display:grid;grid-template-columns:repeat(5,1fr);bottom:0;left:0;right:0;z-index:40;background:white;border-top:1px solid var(--line)}.mobile-bottom a{text-align:center;padding:11px 5px;font-size:12px}.trend-bar{grid-template-columns:90px 1fr}.trend-bar span:last-child{display:none}}