:root{
    --primary:#4A9BD4;
    --primary-2:#6DB7E6;
    --sky:#8CCCF0;
    --sky-light:#CBE9F8;
    --sky-soft:#EDF8FD;
    --cream:#FFF9EE;
    --cream-2:#FFF4DF;
    --cream-3:#FDFBF6;
    --navy:#17344A;
    --navy-2:#244A64;
    --navy-soft:#4F6D80;
    --accent:#EF8E68;
    --accent-2:#F2B36F;
    --accent-soft:#FFF0E8;
    --bg:#FFFDF8;
    --bg-blue:#F3FAFE;
    --bg-cream:#FFF9EE;
    --surface:#FFFFFF;
    --surface-blue:#F8FCFF;
    --surface-cream:#FFFDF8;
    --text:#203542;
    --text-2:#5E7481;
    --text-3:#8A9AA3;
    --line:rgba(74,155,212,.12);
    --line-strong:rgba(74,155,212,.24);
    --line-warm:rgba(239,142,104,.14);
    --shadow:0 8px 28px rgba(31,88,124,.08);
    --shadow-hover:0 16px 42px rgba(31,88,124,.14);
    --radius:12px;
    --radius-card:18px;
    --radius-large:26px;
    --radius-pill:999px;
    --wrap:1320px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.65;-webkit-font-smoothing:antialiased}
body.search-open{overflow:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input{font:inherit}
button{color:inherit}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:fixed;left:20px;top:-80px;z-index:9999;background:var(--navy);color:#fff;padding:10px 16px;border-radius:10px}.skip-link:focus{top:18px}
.wrap{width:min(calc(100% - 40px),var(--wrap));margin-inline:auto}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--primary);font-size:.76rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
.eyebrow::before{content:"";width:22px;height:2px;background:currentColor;border-radius:2px}
.site-notice{background:var(--cream-2);border-bottom:1px solid var(--line-warm);font-size:.82rem;color:var(--navy-soft)}
.notice-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px}.notice-inner p{margin:0}.notice-inner a{font-weight:700;color:var(--navy)}
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,249,238,.9);backdrop-filter:blur(18px);border-bottom:1px solid transparent;transition:.2s ease}.site-header.is-scrolled{border-color:var(--line);box-shadow:0 8px 28px rgba(31,88,124,.06)}
.header-row{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:26px;min-height:76px}
.brand{display:inline-flex;align-items:center;gap:11px}.brand img{width:46px;height:46px;border-radius:14px;object-fit:cover;box-shadow:0 8px 18px rgba(74,155,212,.18)}.brand span{display:grid;line-height:1.05}.brand b{font-size:1.18rem;color:var(--navy)}.brand small{margin-top:5px;color:var(--text-3);font-size:.62rem;letter-spacing:.11em}
.desktop-nav{display:flex;justify-content:center;gap:6px}.desktop-nav a{padding:10px 13px;border-radius:var(--radius-pill);font-weight:700;font-size:.92rem;color:var(--navy-soft)}.desktop-nav a:hover,.desktop-nav a.is-active{background:var(--surface);color:var(--primary);box-shadow:0 4px 18px rgba(31,88,124,.06)}
.header-actions{display:flex;align-items:center;gap:8px}.icon-link,.menu-toggle{border:0;background:transparent;cursor:pointer}.icon-link{display:flex;align-items:center;gap:5px;padding:9px 10px;border-radius:11px;font-size:.84rem}.icon-link:hover{background:var(--sky-soft)}
.menu-toggle{width:42px;height:42px;display:grid;place-content:center;gap:4px;border-radius:12px}.menu-toggle span:not(.sr-only){display:block;width:18px;height:2px;background:var(--navy);border-radius:2px}.menu-toggle:hover{background:var(--surface)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 20px;border-radius:var(--radius-pill);border:1px solid transparent;font-weight:800;cursor:pointer;transition:.18s ease}.btn:hover{transform:translateY(-1px)}.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 22px rgba(74,155,212,.18)}.btn-soft{background:var(--surface);border-color:var(--line-strong);color:var(--navy)}.btn-cream{background:var(--cream);color:var(--navy)}.btn-live{background:var(--accent);color:#fff}.btn-small{min-height:38px;padding-inline:16px;font-size:.82rem}
.mega-menu{position:absolute;left:0;right:0;background:rgba(255,253,248,.97);border-bottom:1px solid var(--line);box-shadow:var(--shadow)}.mega-menu[hidden]{display:none}.mega-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:10px;padding-block:20px}.mega-grid a{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:12px 14px;background:var(--surface-blue);border:1px solid var(--line);border-radius:14px}.mega-grid a:hover{border-color:var(--line-strong);background:#fff}.mega-grid small{color:var(--text-3)}
.search-modal{display:none;position:fixed;inset:0;z-index:1000;padding:28px;background:rgba(15,42,61,.42);backdrop-filter:blur(10px);align-items:flex-start;justify-content:center}
.search-modal.is-open{display:flex}
.search-modal[hidden]{display:none !important}
.search-dialog{width:min(760px,100%);margin-top:9vh;background:var(--cream-3);border:1px solid rgba(255,255,255,.65);border-radius:28px;padding:30px;box-shadow:0 34px 90px rgba(15,42,61,.24)}
.search-dialog__top{display:flex;justify-content:space-between;align-items:start;gap:20px}.search-dialog h2{margin:.35rem 0 0;font-size:clamp(1.6rem,3vw,2.35rem);line-height:1.1}.search-close{width:44px;height:44px;border:1px solid var(--line);border-radius:50%;background:#fff;font-size:1.7rem;cursor:pointer}.search-form{display:grid;grid-template-columns:1fr auto;gap:10px;margin-top:26px}.search-form input{min-width:0;height:52px;padding:0 18px;border:1px solid var(--line-strong);border-radius:var(--radius-pill);background:#fff;outline:none}.search-form input:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(74,155,212,.1)}.search-suggestions{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:18px}.search-suggestions span{font-weight:800;font-size:.78rem;color:var(--text-3)}.search-suggestions a{padding:7px 11px;border-radius:var(--radius-pill);background:var(--sky-soft);font-size:.82rem}.search-fallback{margin:20px 0 0;color:var(--text-3);font-size:.78rem}.search-fallback a{text-decoration:underline}
main{overflow:hidden}.section{padding:78px 0}.section-tight{padding:52px 0}.section-blue{background:var(--bg-blue)}.section-cream{background:var(--bg-cream)}.section-dark{background:var(--navy);color:#f8fcff}.section-dark .section-copy,.section-dark .meta-row,.section-dark p,.section-dark small{color:#b8cad5}.section-dark .eyebrow{color:var(--sky)}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:32px;margin-bottom:28px}.section-head__main{max-width:780px}.section-head h2{margin:.45rem 0 .55rem;font-size:clamp(1.75rem,3vw,2.75rem);line-height:1.08;letter-spacing:-.035em;color:var(--navy)}.section-dark .section-head h2{color:#fff}.section-copy{margin:0;color:var(--text-2);max-width:760px}.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:800;font-size:.9rem;white-space:nowrap}.section-dark .text-link{color:var(--sky)}
.hero{position:relative;padding:70px 0 58px;background:linear-gradient(135deg,var(--cream) 0%,#fffdf8 44%,var(--sky-soft) 100%)}.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(74,155,212,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(74,155,212,.035) 1px,transparent 1px);background-size:34px 34px;mask-image:linear-gradient(to bottom,rgba(0,0,0,.8),transparent)}.hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,7fr) minmax(360px,5fr);gap:48px;align-items:center}.hero-copy h1{margin:.75rem 0 1.2rem;max-width:760px;font-size:clamp(2.7rem,5.6vw,5.25rem);line-height:.98;letter-spacing:-.06em;color:var(--navy)}.hero-copy>p{max-width:700px;color:var(--text-2);font-size:1.05rem}.hero-actions{display:flex;gap:11px;flex-wrap:wrap;margin-top:26px}.hero-search{display:grid;grid-template-columns:1fr auto;gap:8px;margin-top:28px;max-width:650px;padding:7px;background:rgba(255,255,255,.8);border:1px solid var(--line);border-radius:var(--radius-pill);box-shadow:var(--shadow)}.hero-search input{border:0;outline:0;background:transparent;padding-inline:15px;min-width:0}
.hero-media{position:relative}.hero-media>img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:34px;box-shadow:0 22px 70px rgba(31,88,124,.14)}.floating-panel{position:absolute;max-width:250px;padding:18px;background:rgba(255,253,248,.92);border:1px solid rgba(255,255,255,.8);border-radius:20px;box-shadow:var(--shadow);backdrop-filter:blur(12px)}.floating-panel.top{right:-22px;top:38px}.floating-panel.bottom{left:-34px;bottom:34px}.floating-panel strong{display:block;font-size:1.8rem;line-height:1;color:var(--navy)}.floating-panel span{font-size:.78rem;color:var(--text-2)}
.page-hero{padding:58px 0;background:linear-gradient(135deg,var(--cream),var(--bg-blue))}.page-hero__grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}.page-hero h1{margin:.65rem 0 1rem;font-size:clamp(2.4rem,5vw,4.6rem);line-height:1.02;letter-spacing:-.055em;color:var(--navy)}.page-hero p{max-width:720px;color:var(--text-2);font-size:1.02rem}.page-hero__media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:28px;box-shadow:var(--shadow)}
.chip-row{display:flex;gap:9px;overflow:auto;padding-bottom:6px;scrollbar-width:none}.chip-row::-webkit-scrollbar{display:none}.chip,.mini-tag{display:inline-flex;align-items:center;white-space:nowrap;border-radius:var(--radius-pill)}.chip{padding:9px 14px;font-size:.85rem;font-weight:700;border:1px solid var(--line)}.chip-soft{background:var(--sky-soft);border-color:transparent;color:var(--navy-2)}.mini-tag{padding:4px 8px;background:rgba(74,155,212,.09);color:var(--navy-soft);font-size:.72rem}.tag-row{display:flex;gap:6px;flex-wrap:wrap}
.video-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.video-grid.compact{grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.video-card{min-width:0}.video-card .video-thumb{position:relative;display:block;overflow:hidden;border-radius:var(--radius-card);background:var(--sky-soft);aspect-ratio:16/9}.video-card .video-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease}.video-card:hover .video-thumb img{transform:scale(1.02)}.play-button{position:absolute;left:14px;bottom:14px;width:38px;height:38px;display:grid;place-items:center;border-radius:50%;background:rgba(255,255,255,.9);color:var(--navy);box-shadow:0 4px 16px rgba(0,0,0,.12);font-size:.76rem;transition:.2s}.video-card:hover .play-button{transform:scale(1.05)}.duration{position:absolute;right:10px;bottom:10px;padding:4px 7px;background:rgba(15,42,61,.8);color:#fff;border-radius:7px;font-size:.7rem}.card-body{padding:14px 2px 0}.video-card h3,.live-card h3,.media-card h3,.topic-card h3{margin:.45rem 0 .4rem;font-size:1.08rem;line-height:1.35;color:var(--navy)}.video-card p,.live-card p,.media-card p,.topic-card p,.anchor-card p,.lesson-card p{margin:.35rem 0;color:var(--text-2);font-size:.88rem}.meta-row,.card-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;color:var(--text-3);font-size:.75rem}.card-foot{margin-top:12px}.save-btn{border:0;background:transparent;color:var(--primary);font-weight:800;cursor:pointer}.save-btn.is-saved{color:var(--accent)}
.editorial-grid{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(360px,1fr);gap:22px}.feature-story{position:relative;min-height:520px;border-radius:30px;overflow:hidden;background:var(--navy);color:#fff}.feature-story>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.72}.feature-story::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(15,42,61,.92),rgba(15,42,61,.04) 65%)}.feature-story__body{position:absolute;z-index:2;left:0;right:0;bottom:0;padding:32px}.feature-story h3{margin:.6rem 0 .7rem;font-size:clamp(1.7rem,3vw,2.8rem);line-height:1.08}.feature-story p{max-width:660px;color:#d7e6ee}.feature-stack{display:grid;grid-template-columns:1fr 1fr;gap:16px}.feature-stack .video-card .card-body p{display:none}
.rank-layout{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(330px,.8fr);gap:30px}.rank-list{list-style:none;padding:0;margin:0;display:grid;gap:4px}.rank-list li{display:grid;grid-template-columns:46px 1fr;align-items:center;gap:12px;padding:14px 0;border-bottom:1px solid var(--line)}.rank-no{font-size:1.25rem;font-weight:900;color:var(--primary)}.rank-list strong{display:block;color:var(--navy)}.rank-list small{color:var(--text-3)}
.horizontal-rail{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(280px,32%);gap:18px;overflow:auto;padding:4px 2px 12px;scroll-snap-type:x proximity}.horizontal-rail>*{scroll-snap-align:start}.horizontal-rail::-webkit-scrollbar{height:7px}.horizontal-rail::-webkit-scrollbar-thumb{background:var(--sky-light);border-radius:99px}
.bento-grid{display:grid;grid-template-columns:1.25fr .75fr .75fr;grid-auto-rows:220px;gap:16px}.bento-item{position:relative;overflow:hidden;border-radius:24px;background:var(--sky-soft)}.bento-item:first-child{grid-row:span 2}.bento-item:nth-child(4){grid-column:span 2}.bento-item img{width:100%;height:100%;object-fit:cover}.bento-overlay{position:absolute;inset:auto 0 0;padding:18px;background:linear-gradient(transparent,rgba(15,42,61,.82));color:#fff}.bento-overlay h3{margin:0 0 4px}.bento-overlay p{margin:0;color:#dce9f1;font-size:.82rem}
.live-stage{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(330px,.65fr);gap:22px}.live-feature{position:relative;min-height:510px;overflow:hidden;border-radius:30px;background:#0f2a3d}.live-feature img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;opacity:.64}.live-feature__body{position:absolute;z-index:2;left:0;right:0;bottom:0;padding:30px;color:#fff;background:linear-gradient(transparent,rgba(15,42,61,.94))}.live-badge{display:inline-flex;align-items:center;padding:5px 9px;border-radius:var(--radius-pill);background:var(--accent);color:#fff;font-size:.69rem;font-weight:900;letter-spacing:.06em}.live-list{display:grid;gap:13px}.live-card{overflow:hidden;border-radius:var(--radius-card);background:var(--surface);border:1px solid var(--line)}.live-card .live-visual{position:relative;aspect-ratio:16/9;overflow:hidden}.live-card .live-visual img{width:100%;height:100%;object-fit:cover}.live-card .live-badge{position:absolute;top:11px;left:11px}.live-card .card-body{padding:15px}.live-list .live-card{display:grid;grid-template-columns:150px 1fr}.live-list .live-card .live-visual{aspect-ratio:auto;min-height:132px}.live-list .live-card .card-body p{display:none}
.anchor-rail{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(230px,1fr);gap:14px;overflow:auto;padding-bottom:10px}.anchor-card{display:grid;grid-template-columns:74px 1fr;gap:14px;padding:18px;border-radius:20px;background:var(--surface-blue);border:1px solid var(--line)}.anchor-avatar{width:74px;height:74px;border-radius:50%;object-fit:cover}.anchor-card h3{margin:.2rem 0;font-size:1.08rem}.anchor-direction{font-weight:700;color:var(--primary)!important}.status-dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px var(--accent-soft)}
.community-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.topic-card{padding:22px;background:var(--surface);border:1px solid var(--line);border-radius:20px}.topic-top{display:flex;align-items:center;gap:10px}.topic-top>div{display:grid}.topic-top small{color:var(--text-3)}.avatar-letter{width:38px;height:38px;display:grid;place-items:center;border-radius:50%;background:var(--sky-soft);font-weight:900;color:var(--navy)}.topic-related{margin:14px 0 10px;padding:10px 12px;border-radius:12px;background:var(--cream);font-size:.78rem}.topic-related span{color:var(--text-3);margin-right:8px}.topic-related b{color:var(--navy)}
.timeline{position:relative;display:grid;gap:0;padding-left:28px}.timeline::before{content:"";position:absolute;left:8px;top:8px;bottom:8px;width:1px;background:var(--line-strong)}.timeline-item{position:relative;padding:0 0 26px 22px}.timeline-item::before{content:"";position:absolute;left:-24px;top:7px;width:9px;height:9px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 5px var(--sky-soft)}.timeline-item h3{margin:0 0 5px}.timeline-item p{margin:0;color:var(--text-2)}
.media-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.media-card{display:grid;grid-template-columns:210px 1fr;min-height:210px;border:1px solid var(--line);border-radius:22px;overflow:hidden;background:var(--surface)}.media-card img{width:100%;height:100%;object-fit:cover}.media-card .card-body{padding:22px}.media-card small{color:var(--text-3)}
.tags-trends{display:grid;grid-template-columns:.8fr 1.2fr;gap:28px}.tag-cloud{display:flex;gap:10px;flex-wrap:wrap;align-content:start}.tag-cloud a{padding:10px 14px;border-radius:var(--radius-pill);background:var(--cream);border:1px solid var(--line-warm);font-weight:700}.trend-list{display:grid;gap:13px}.trend-item{display:grid;grid-template-columns:1fr 100px;gap:16px;align-items:center}.trend-copy strong{display:block}.trend-copy small{color:var(--text-2)}.trend-bar{height:8px;border-radius:99px;background:var(--sky-soft);overflow:hidden}.trend-bar span{display:block;height:100%;background:var(--primary);border-radius:inherit}.trend-item em{font-style:normal;color:var(--accent);font-size:.75rem}
.creator-story{display:grid;grid-template-columns:.85fr 1.15fr;gap:34px;align-items:center;padding:26px;border-radius:28px;background:var(--cream)}.creator-story.reverse{grid-template-columns:1.15fr .85fr}.creator-story img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:22px}.creator-story h3{font-size:2rem;margin:.3rem 0 .65rem;line-height:1.1}.creator-story p{color:var(--text-2)}
.lesson-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}.lesson-card{display:grid;grid-template-columns:72px 1fr;gap:16px;padding:18px;border:1px solid var(--line);border-radius:18px;background:var(--surface)}.lesson-index{width:62px;height:62px;display:grid;place-items:center;border-radius:16px;background:var(--sky-soft);font-weight:900;color:var(--primary)}.lesson-card h3{margin:.25rem 0 .35rem}.lesson-card small{color:var(--text-3)}
.app-showcase{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:center}.device-combo{position:relative;min-height:520px}.device-combo .app-shot{width:68%;margin-left:auto;border-radius:30px;box-shadow:var(--shadow)}.device-combo .phone-shot{position:absolute;left:2%;bottom:0;width:44%;border-radius:28px;box-shadow:0 20px 52px rgba(31,88,124,.16)}.feature-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}.feature-item{padding:18px;border-radius:18px;background:var(--surface);border:1px solid var(--line)}.feature-item b{display:block;margin-bottom:5px}.feature-item p{margin:0;color:var(--text-2);font-size:.85rem}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;counter-reset:step}.step{position:relative;padding:22px 22px 22px 70px;border-top:1px solid var(--line-strong)}.step::before{counter-increment:step;content:"0" counter(step);position:absolute;left:12px;top:16px;font-size:1.3rem;font-weight:900;color:var(--primary)}.step h3{margin:0 0 6px}.step p{margin:0;color:var(--text-2);font-size:.86rem}
.info-split{display:grid;grid-template-columns:1fr 1fr;gap:28px}.info-panel{padding:28px;border-radius:24px;background:var(--surface-blue);border:1px solid var(--line)}.info-panel.warm{background:var(--cream);border-color:var(--line-warm)}.info-panel h3{font-size:1.45rem;margin:.2rem 0 .55rem}.info-panel p{color:var(--text-2)}
.prose{max-width:880px}.prose p{font-size:1rem;color:var(--text-2)}.prose h2,.prose h3{color:var(--navy)}
.faq-block{max-width:930px;margin-inline:auto}.faq-block>h2{text-align:center;font-size:2.4rem;margin:0 0 28px}.faq-list{border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}.faq-question{width:100%;display:flex;justify-content:space-between;gap:20px;align-items:center;padding:20px 0;border:0;background:transparent;text-align:left;font-weight:800;cursor:pointer}.faq-answer{padding:0 44px 18px 0;color:var(--text-2)}.faq-answer[hidden]{display:none}
.site-footer{background:var(--navy);color:#dbe8ef;padding:68px 0 30px}.footer-top{display:grid;grid-template-columns:1.2fr 2fr;gap:60px}.brand-light b{color:#fff}.brand-light small{color:#9fb6c3}.footer-brand>p{max-width:420px;color:#aac0cc}.footer-links{display:grid;grid-template-columns:repeat(5,1fr);gap:24px}.footer-links h2{font-size:.9rem;color:#fff;margin:0 0 14px}.footer-links a{display:block;margin:8px 0;color:#a9bfcb;font-size:.84rem}.footer-links a:hover{color:#fff}.footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:50px;padding-top:24px;border-top:1px solid rgba(255,255,255,.1);font-size:.75rem;color:#839eae}.footer-bottom p{margin:0}
.mobile-bottom-nav{display:none}.back-to-top{position:fixed;right:24px;bottom:24px;z-index:80;width:46px;height:46px;border:1px solid var(--line);border-radius:50%;background:var(--surface);box-shadow:var(--shadow);cursor:pointer}.back-to-top[hidden]{display:none}
.hero-focus-list{display:grid;gap:10px;margin-top:18px}.focus-row{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:10px;padding:10px 0;border-bottom:1px solid var(--line)}.focus-row b{color:var(--primary)}.focus-row span{font-size:.82rem}.focus-row small{color:var(--text-3)}
.metric-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.metric{padding:20px;border-radius:18px;background:var(--surface);border:1px solid var(--line)}.metric strong{display:block;font-size:1.8rem;color:var(--navy)}.metric span{color:var(--text-2);font-size:.82rem}
.split-list{display:grid;grid-template-columns:.8fr 1.2fr;gap:28px}.editor-note{padding:28px;border-radius:24px;background:var(--cream);font-size:1.05rem}.editor-note p{color:var(--text-2)}
.compact-list{display:grid;gap:10px}.compact-row{display:grid;grid-template-columns:110px 1fr auto;gap:14px;align-items:center;padding:10px 0;border-bottom:1px solid var(--line)}.compact-row img{width:110px;aspect-ratio:16/9;object-fit:cover;border-radius:12px}.compact-row strong{display:block}.compact-row small{color:var(--text-3)}
.channel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.channel-card{padding:20px;border-radius:20px;background:var(--surface-blue);border:1px solid var(--line)}.channel-card h3{margin:.2rem 0 .4rem}.channel-card p{margin:0;color:var(--text-2);font-size:.84rem}
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:22px}.tab-button{border:1px solid var(--line);background:var(--surface);padding:9px 14px;border-radius:99px;font-weight:800;cursor:pointer}.tab-button.is-active{background:var(--navy);color:#fff;border-color:var(--navy)}
@media (max-width:1100px){.desktop-nav{display:none}.mega-grid{grid-template-columns:repeat(4,1fr)}.hero-grid,.page-hero__grid{grid-template-columns:1fr 1fr}.video-grid.compact{grid-template-columns:repeat(3,1fr)}.bento-grid{grid-template-columns:1fr 1fr}.bento-item:first-child{grid-row:span 1}.bento-item:nth-child(4){grid-column:span 1}.footer-top{grid-template-columns:1fr}.footer-links{grid-template-columns:repeat(5,1fr)}}
@media (max-width:820px){.site-notice{display:none}.header-row{min-height:66px;gap:12px}.brand img{width:40px;height:40px}.brand small,.header-actions .icon-link span:last-child{display:none}.hero{padding-top:42px}.hero-grid,.page-hero__grid,.editorial-grid,.rank-layout,.live-stage,.tags-trends,.app-showcase,.info-split,.split-list{grid-template-columns:1fr}.hero-media{max-width:620px}.hero-media>img{aspect-ratio:16/10}.floating-panel.top{right:12px}.floating-panel.bottom{left:12px}.video-grid{grid-template-columns:repeat(2,1fr)}.video-grid.compact{grid-template-columns:repeat(2,1fr)}.horizontal-rail{grid-auto-columns:minmax(270px,75%)}.community-grid,.media-grid,.lesson-list{grid-template-columns:1fr}.media-card{grid-template-columns:180px 1fr}.creator-story,.creator-story.reverse{grid-template-columns:1fr}.creator-story.reverse img{order:-1}.steps{grid-template-columns:1fr 1fr}.channel-grid{grid-template-columns:1fr 1fr}.footer-links{grid-template-columns:repeat(3,1fr)}.mobile-bottom-nav{position:fixed;z-index:90;left:12px;right:12px;bottom:10px;display:grid;grid-template-columns:repeat(5,1fr);padding:8px;background:rgba(255,253,248,.94);border:1px solid var(--line);border-radius:20px;box-shadow:0 12px 36px rgba(31,88,124,.16);backdrop-filter:blur(16px)}.mobile-bottom-nav a{display:grid;place-items:center;gap:2px;color:var(--text-3);font-size:.7rem}.mobile-bottom-nav a span{font-size:1rem}.mobile-bottom-nav a.is-active{color:var(--primary)}.site-footer{padding-bottom:110px}.back-to-top{bottom:88px}.metric-strip{grid-template-columns:1fr 1fr}.feature-list{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.wrap{width:min(calc(100% - 28px),var(--wrap))}.section{padding:58px 0}.section-head{align-items:start;flex-direction:column;gap:12px}.header-actions .btn-small{display:none}.mega-grid{grid-template-columns:1fr 1fr}.search-modal{padding:12px}.search-dialog{margin-top:6vh;padding:22px}.search-form{grid-template-columns:1fr}.hero-copy h1{font-size:clamp(2.5rem,13vw,4rem)}.hero-actions .btn{flex:1}.hero-search{grid-template-columns:1fr;padding:10px;border-radius:20px}.hero-search .btn{width:100%}.video-grid,.video-grid.compact{grid-template-columns:1fr 1fr;gap:14px}.video-grid .video-card p,.video-grid.compact .video-card p{display:none}.video-card h3{font-size:.96rem}.horizontal-rail{grid-auto-columns:82%}.feature-stack{grid-template-columns:1fr}.feature-story{min-height:430px}.live-list .live-card{grid-template-columns:115px 1fr}.anchor-rail{grid-auto-columns:84%}.media-card{grid-template-columns:1fr}.media-card img{height:190px}.metric-strip{grid-template-columns:1fr 1fr}.steps{grid-template-columns:1fr}.feature-list{grid-template-columns:1fr}.device-combo{min-height:420px}.footer-links{grid-template-columns:1fr 1fr}.footer-bottom{flex-direction:column}.compact-row{grid-template-columns:86px 1fr}.compact-row>a:last-child{display:none}.compact-row img{width:86px}.channel-grid{grid-template-columns:1fr}.faq-block>h2{font-size:2rem}}
.watch-layout{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(320px,.55fr);gap:26px;align-items:start}.watch-layout h1{font-size:clamp(2rem,4vw,3.6rem);line-height:1.05;margin:.6rem 0 1.2rem}.watch-player{position:relative;overflow:hidden;border-radius:26px;background:#0f2a3d;aspect-ratio:16/9}.watch-player video,.watch-player>img{width:100%;height:100%;object-fit:cover}.player-notice{position:absolute;left:18px;right:18px;bottom:18px;padding:16px 18px;border-radius:16px;background:rgba(255,253,248,.92);color:var(--navy)}.player-notice p{margin:.3rem 0 0;color:var(--text-2);font-size:.84rem}.section-dark .info-panel{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.12)}.section-dark .info-panel h2,.section-dark .info-panel h3{color:#fff}.section-dark .info-panel .focus-row{border-color:rgba(255,255,255,.12)}button[disabled]{opacity:.58;cursor:not-allowed;transform:none!important}
@media (max-width:820px){.watch-layout{grid-template-columns:1fr}}