: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;--surface-soft:rgba(255,255,255,.86);--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}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.6}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.wrap{width:min(var(--wrap),calc(100% - 40px));margin:auto}.announcement{background:var(--navy-dark);color:#dceef5;text-align:center;padding:8px 12px;font-size:13px}.site-header{position:sticky;top:0;z-index:50;background:rgba(245,249,250,.94);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}.nav-wrap{height:72px;display:flex;align-items:center;gap:28px}.brand{display:flex;align-items:center;gap:10px;font-weight:800}.brand img{width:46px;height:34px;object-fit:cover;border-radius:9px}.main-nav{display:flex;gap:21px;flex:1}.main-nav a,.nav-actions a{font-size:14px;color:var(--text-2)}.main-nav a:hover,.nav-actions a:hover{color:var(--primary)}.nav-actions{display:flex;align-items:center;gap:14px}.pill,.btn{border-radius:var(--radius-pill);padding:10px 18px;background:var(--primary);color:white!important;display:inline-flex;align-items:center;justify-content:center}.btn.secondary{background:transparent;color:var(--primary)!important;border:1px solid var(--line-strong)}.menu-btn{display:none;border:0;background:none;font-size:24px}.hero{padding:70px 0 42px}.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:40px;align-items:center}.eyebrow{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--primary);font-weight:800}.hero h1{font-size:clamp(44px,6vw,82px);line-height:1.02;margin:14px 0 22px;letter-spacing:-.04em}.hero p{font-size:18px;color:var(--text-2);max-width:680px}.hero-actions{display:flex;gap:12px;margin:28px 0}.hero-search{display:flex;background:white;border:1px solid var(--line);border-radius:18px;padding:8px;box-shadow:var(--shadow);max-width:620px}.hero-search input{border:0;background:none;outline:none;flex:1;padding:10px 12px;font-size:15px}.hero-visual{position:relative}.hero-visual>img{border-radius:28px;aspect-ratio:16/10;object-fit:cover;box-shadow:var(--shadow-hover)}.floating-panel{position:absolute;right:-16px;bottom:-28px;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);padding:18px;border-radius:18px;box-shadow:var(--shadow);width:250px}.panel-row{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid var(--line)}.section{padding:66px 0}.section.compact{padding:40px 0}.section.dark{background:var(--navy-dark);color:#eef9fd}.section.dark .section-head p,.section.dark .video-card p,.section.dark .video-card small,.section.dark .meta{color:#a8c3cf}.section.dark .video-card{background:var(--navy-2);border-color:rgba(255,255,255,.08)}.section-head{display:flex;align-items:end;justify-content:space-between;margin-bottom:24px}.section-head h2{font-size:clamp(28px,4vw,46px);letter-spacing:-.03em;margin:6px 0}.section-head p{color:var(--text-2);max-width:720px;margin:0}.chips{display:flex;gap:10px;flex-wrap:wrap}.chip{background:white;border:1px solid var(--line);border-radius:999px;padding:9px 14px;color:var(--text-2)}.video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.video-card,.live-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow);transition:.2s}.video-card:hover,.live-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}.media{position:relative;display:block;overflow:hidden}.media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:.2s}.video-card:hover .media img{transform:scale(1.02)}.play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:44px;height:44px;border-radius:50%;display:grid;place-items:center;background:rgba(255,255,255,.88);color:var(--navy-dark);transition:.2s}.video-card:hover .play{transform:translate(-50%,-50%) scale(1.05)}.duration{position:absolute;right:10px;bottom:10px;background:rgba(7,30,42,.8);color:white;padding:3px 7px;border-radius:7px;font-size:12px}.live-badge{position:absolute;left:10px;top:10px;background:var(--accent);color:white;padding:5px 9px;border-radius:999px;font-size:11px;font-weight:800}.card-body{padding:16px}.meta{display:flex;justify-content:space-between;color:var(--text-3);font-size:12px}.card-body h3{font-size:18px;line-height:1.35;margin:8px 0}.card-body p{color:var(--text-2);font-size:14px;margin:8px 0}.feature-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:20px}.feature-main{background:var(--navy-dark);color:white;border-radius:24px;overflow:hidden}.feature-main img{width:100%;aspect-ratio:16/8;object-fit:cover}.feature-main .card-body{padding:24px}.side-list{display:grid;gap:12px}.side-item{display:grid;grid-template-columns:130px 1fr;gap:14px;background:white;border-radius:14px;padding:10px;border:1px solid var(--line)}.side-item img{width:130px;height:84px;object-fit:cover;border-radius:10px}.side-item h3{font-size:15px;margin:5px 0}.rank-list{display:grid;gap:8px}.rank-item{display:grid;grid-template-columns:50px 1fr auto;gap:14px;align-items:center;padding:14px 16px;border-bottom:1px solid var(--line)}.rank-num{font-size:26px;font-weight:900;color:var(--primary)}.bento{display:grid;grid-template-columns:1.2fr .8fr .8fr;grid-auto-rows:230px;gap:16px}.bento-card{position:relative;border-radius:22px;overflow:hidden;min-height:220px}.bento-card:first-child{grid-row:span 2}.bento-card img{width:100%;height:100%;object-fit:cover}.bento-card .overlay{position:absolute;inset:auto 0 0;background:linear-gradient(transparent,rgba(7,30,42,.92));color:white;padding:44px 18px 18px}.anchor-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.anchor-card{display:grid;grid-template-columns:92px 1fr;gap:16px;background:white;padding:16px;border-radius:18px;border:1px solid var(--line)}.anchor-card img{width:92px;height:92px;object-fit:cover;border-radius:50%}.anchor-card h3{margin:4px 0}.anchor-card p{font-size:13px;color:var(--text-2);margin:4px 0}.status-dot{font-size:11px;color:var(--accent)}.live-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.topic-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.topic-card{background:white;border:1px solid var(--line);border-radius:18px;padding:20px}.topic-card p{color:var(--text-2)}.magazine{display:grid;grid-template-columns:1fr 1fr;gap:28px}.timeline{border-left:2px solid var(--line-strong);padding-left:24px}.timeline article{position:relative;padding:0 0 24px}.timeline article:before{content:'';position:absolute;left:-31px;top:7px;width:12px;height:12px;border-radius:50%;background:var(--sky)}.trend-bars{display:grid;gap:12px}.trend-row{display:grid;grid-template-columns:130px 1fr 45px;gap:14px;align-items:center}.bar{height:10px;background:var(--bg-2);border-radius:999px;overflow:hidden}.bar i{display:block;height:100%;background:linear-gradient(90deg,var(--primary),var(--sky));border-radius:999px}.cta-panel{background:linear-gradient(135deg,var(--navy),var(--primary));color:white;border-radius:28px;padding:34px;display:grid;grid-template-columns:1.3fr .7fr;align-items:center;gap:22px}.cta-panel img{border-radius:20px;max-height:330px;object-fit:cover}.app-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:34px;align-items:center}.app-grid img{border-radius:28px}.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.info-card{background:white;border:1px solid var(--line);border-radius:18px;padding:22px}.faq{display:grid;gap:10px}.faq details{background:white;border:1px solid var(--line);border-radius:14px;padding:14px 18px}.page-hero{padding:58px 0 34px}.page-hero-inner{background:linear-gradient(135deg,var(--sky-soft),#fff);border:1px solid var(--line);border-radius:28px;padding:42px}.page-hero h1{font-size:clamp(38px,5vw,64px);margin:8px 0 12px}.footer{background:var(--navy-dark);color:#d8e8ee;padding:52px 0 96px;margin-top:60px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:24px}.footer a{display:block;color:#a9c2cc;margin:6px 0;font-size:14px}.brand-foot{font-size:24px;font-weight:800}.copyright{border-top:1px solid rgba(255,255,255,.08);margin-top:30px;padding-top:20px;color:#7f9ba7;font-size:12px}.mobile-tab{display:none}.notice{background:var(--accent-soft);border:1px solid rgba(217,121,69,.25);border-radius:14px;padding:16px;color:#8b4a26}.content-box{background:white;border:1px solid var(--line);border-radius:20px;padding:26px}.content-box h2{margin-top:0}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:22px}.search-box{display:flex;background:white;border-radius:16px;border:1px solid var(--line);padding:8px}.search-box input{flex:1;border:0;outline:none;padding:11px;background:none}.search-box button{border:0}.tag-cloud{display:flex;gap:9px;flex-wrap:wrap}.tag-cloud a{padding:8px 12px;border-radius:999px;background:var(--sky-soft);color:var(--primary)}
@media(max-width:980px){.main-nav{display:none}.menu-btn{display:block}.nav-actions{margin-left:auto}.video-grid,.live-grid{grid-template-columns:repeat(2,1fr)}.anchor-grid,.info-grid{grid-template-columns:repeat(2,1fr)}.hero-grid,.feature-layout,.app-grid,.cta-panel,.magazine{grid-template-columns:1fr}.bento{grid-template-columns:1fr 1fr}.bento-card:first-child{grid-row:span 1}.footer-grid{grid-template-columns:1fr 1fr}.floating-panel{right:10px}}
@media(max-width:640px){.wrap{width:min(var(--wrap),calc(100% - 24px))}.hero{padding-top:40px}.hero h1{font-size:43px}.hero-actions{flex-direction:column}.nav-actions a:not(.pill){display:none}.video-grid,.live-grid,.anchor-grid,.topic-grid,.info-grid,.two-col,.bento{grid-template-columns:1fr}.side-item{grid-template-columns:105px 1fr}.side-item img{width:105px;height:75px}.footer-grid{grid-template-columns:1fr 1fr}.mobile-tab{position:fixed;bottom:0;left:0;right:0;z-index:80;background:rgba(255,255,255,.96);backdrop-filter:blur(16px);display:grid;grid-template-columns:repeat(5,1fr);padding:10px 6px;border-top:1px solid var(--line)}.mobile-tab a{text-align:center;font-size:12px}.footer{padding-bottom:120px}.floating-panel{position:relative;width:auto;right:auto;bottom:auto;margin-top:-25px}.page-hero-inner{padding:28px}.section{padding:48px 0}}