:root{--primary:#2563eb;--secondary:#7c3aed;--bg:#eef2ff;--bg2:#f8fafc;--surface:#ffffff;--surface2:#f1f5f9;--text:#0f172a;--muted:#64748b;--line:#dbe3ef;--soft:rgba(15,23,42,.08);--tint:rgba(37,99,235,0.18);--radius:8px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:linear-gradient(180deg,#eef2ff 0,#f8fafc 38%,#ffffff 100%);color:var(--text);font-family:"Noto Sans SC","Plus Jakarta Sans","Microsoft YaHei",Arial,sans-serif;line-height:1.65}
a{color:inherit;text-decoration:none}
img,video{display:block;max-width:100%}
.app{min-height:100vh}
.topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.86);border-bottom:1px solid rgba(219,227,239,.82);backdrop-filter:blur(18px)}
.nav{min-height:76px;max-width:1220px;margin:0 auto;padding:12px 18px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.brand{display:flex;align-items:center;gap:12px;min-width:190px}
.brand-mark{width:42px;height:42px;border-radius:8px;background:linear-gradient(135deg,var(--primary),var(--secondary));color:white;display:grid;place-items:center;font-weight:900;box-shadow:0 14px 28px var(--tint)}
.brand b{display:block;font-size:20px;line-height:1.1}
.brand small{display:block;margin-top:3px;color:var(--muted);font-size:12px;font-weight:700}
.navlinks{display:flex;align-items:center;gap:6px;flex-wrap:wrap;justify-content:center}
.navlinks a,.user-actions a{min-height:36px;padding:8px 12px;border-radius:999px;color:#475569;font-size:14px;font-weight:800}
.navlinks a:hover,.navlinks a[aria-current=page]{background:#e0e7ff;color:var(--primary)}
.user-actions{display:flex;align-items:center;gap:8px}
.user-actions .join{background:var(--primary);color:white;box-shadow:0 10px 20px var(--tint)}
.hero{max-width:1220px;margin:0 auto;padding:58px 18px 28px;display:grid;grid-template-columns:minmax(0,1.02fr) minmax(340px,.98fr);gap:34px;align-items:center}
.hero-copy{padding:20px 0}
.eyebrow,.section-head span,.page-title span,.badge{display:inline-flex;align-items:center;width:max-content;border:1px solid #c7d2fe;background:#eef2ff;color:var(--primary);border-radius:999px;padding:6px 12px;font-size:13px;font-weight:900}
.hero h1{margin:18px 0 8px;font-size:clamp(44px,7vw,82px);line-height:1.02;letter-spacing:0}
.hero h2{margin:0;max-width:760px;font-size:clamp(24px,3.4vw,42px);line-height:1.14;letter-spacing:0}
.hero p{max-width:720px;margin:18px 0 0;color:var(--muted);font-size:17px}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.btn{min-height:44px;padding:0 18px;border-radius:8px;border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;font-weight:900;background:white;color:var(--text);cursor:pointer}
.btn.primary{background:var(--primary);border-color:var(--primary);color:white;box-shadow:0 14px 28px var(--tint)}
.btn.ghost{background:rgba(255,255,255,.74)}
.hero-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:30px}
.hero-metrics div{background:rgba(255,255,255,.82);border:1px solid var(--line);border-radius:8px;padding:14px;box-shadow:0 12px 28px var(--soft)}
.hero-metrics strong{display:block;font-size:22px;color:var(--primary)}
.hero-metrics span{display:block;color:var(--muted);font-size:12px;font-weight:800}
.hero-board{display:grid;grid-template-columns:1fr 160px;gap:14px;align-items:stretch}
.hero-poster,.hero-stack a{position:relative;overflow:hidden;border-radius:8px;background:var(--surface);box-shadow:0 24px 55px rgba(15,23,42,.18)}
.hero-poster{min-height:430px}
.hero-poster img,.hero-stack img{width:100%;height:100%;object-fit:cover}
.hero-poster:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(15,23,42,.82))}
.hero-poster span,.hero-poster b{position:absolute;z-index:2}
.hero-poster span{left:14px;top:14px;background:white;color:var(--primary);border-radius:999px;padding:6px 12px;font-weight:900}
.hero-poster b{right:14px;bottom:14px;color:white;font-size:28px}
.hero-stack{display:grid;gap:14px}
.hero-stack a{min-height:200px}
.hero-stack span{position:absolute;left:10px;right:10px;bottom:10px;background:rgba(255,255,255,.9);border-radius:8px;padding:8px;font-size:12px;font-weight:900}
.main{max-width:1220px;margin:0 auto;padding:0 18px}
.block{padding-top:34px;padding-bottom:34px}
.page{padding-top:36px;padding-bottom:70px}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:18px}
.section-head h2,.page-title h1{margin:8px 0 0;font-size:30px;line-height:1.2}
.section-head p,.page-title p{margin:8px 0 0;color:var(--muted)}
.category-tiles{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}
.category-tiles a{background:linear-gradient(180deg,#fff,#f8fafc);border:1px solid var(--line);border-radius:8px;padding:18px;box-shadow:0 12px 24px var(--soft)}
.category-tiles strong{display:block;font-size:18px}
.category-tiles span{display:inline-flex;margin-top:10px;color:var(--primary);font-size:13px;font-weight:900}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.feature-grid.list{grid-template-columns:repeat(2,1fr)}
.feature-card{background:var(--surface);border:1px solid var(--line);border-radius:8px;overflow:hidden;box-shadow:0 16px 32px var(--soft);transition:transform .18s ease,border-color .18s ease}
.feature-card:hover,.mini-card:hover{transform:translateY(-3px);border-color:var(--primary)}
.feature-card.wide{grid-column:span 1}
.thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#e2e8f0}
.thumb img{width:100%;height:100%;object-fit:cover}
.thumb:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,23,42,0) 45%,rgba(15,23,42,.66))}
.badge,.runtime{position:absolute;z-index:2}
.badge{left:12px;top:12px;border-color:rgba(255,255,255,.55);background:rgba(255,255,255,.9)}
.runtime{right:12px;bottom:12px;color:white;font-weight:900}
.feature-body{padding:16px}
.feature-body h3{margin:0 0 9px;font-size:20px;line-height:1.25}
.feature-body p{margin:0;color:#475569;font-size:14px}
.tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.tags span{background:#f1f5f9;border:1px solid var(--line);border-radius:999px;padding:5px 9px;color:#475569;font-size:12px;font-weight:900}
.split{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:18px;align-items:start}
.latest-panel{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.latest-panel .section-head{grid-column:1/-1}
.side-rank{position:sticky;top:96px;background:#101827;color:white;border-radius:8px;padding:18px;box-shadow:0 20px 38px rgba(15,23,42,.22)}
.side-rank h2{margin:0 0 12px}
.side-rank a{display:grid;grid-template-columns:38px 1fr;gap:10px;align-items:center;padding:11px 0;border-top:1px solid rgba(255,255,255,.12)}
.side-rank b{color:#93c5fd}
.side-rank span{font-weight:900}
.side-rank em{grid-column:2;color:#cbd5e1;font-size:12px;font-style:normal}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.mini-card{background:white;border:1px solid var(--line);border-radius:8px;overflow:hidden;box-shadow:0 12px 24px var(--soft);transition:transform .18s ease,border-color .18s ease}
.mini-card a{display:grid;grid-template-columns:96px 1fr;gap:12px;min-height:112px}
.mini-card img{width:96px;height:112px;object-fit:cover}
.mini-card div{padding:12px 12px 12px 0}
.mini-card span{color:var(--primary);font-size:12px;font-weight:900}
.mini-card h3{margin:5px 0 6px;font-size:16px;line-height:1.25}
.mini-card p{margin:0;color:var(--muted);font-size:12px}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0}
.chip{border:1px solid var(--line);background:white;color:#475569;border-radius:999px;padding:8px 13px;font-weight:900;box-shadow:0 8px 18px var(--soft)}
.chip.active,.chip:hover{background:var(--primary);border-color:var(--primary);color:white}
.panel{background:white;border:1px solid var(--line);border-radius:8px;padding:24px;box-shadow:0 18px 36px var(--soft)}
.panel h1,.panel h2{margin:0 0 12px}
.panel p,.panel li{color:#475569}
.player{display:grid;grid-template-columns:minmax(0,1.45fr) 380px;gap:18px}
.video-box{background:#020617;border-radius:8px;overflow:hidden;box-shadow:0 22px 48px rgba(15,23,42,.22)}
.video-box video{width:100%;aspect-ratio:16/9;background:#020617}
.player-info .line{position:static;margin-bottom:12px}
.form{max-width:460px;margin:0 auto;display:grid;gap:12px}
.input{height:46px;border-radius:8px;border:1px solid var(--line);background:#f8fafc;color:var(--text);padding:0 13px;font:inherit}
.footer{margin-top:34px;border-top:1px solid rgba(148,163,184,.24);background:#0f172a;color:#cbd5e1}
.footer-inner{max-width:1220px;margin:0 auto;padding:44px 18px 34px}
.footer-columns{display:grid;grid-template-columns:repeat(3,minmax(180px,1fr));gap:54px;padding-bottom:34px}
.footer-col h3{margin:0 0 18px;color:white;font-size:22px;line-height:1.2}
.footer-col a{display:block;width:max-content;max-width:100%;margin:11px 0;color:#a8b3c7;font-size:17px;font-weight:600}
.footer-col a:hover,.friend-links a:hover{color:white}
.footer-bottom{border-top:1px solid rgba(148,163,184,.28);padding-top:26px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.footer strong{display:block;color:white;font-size:18px}
.footer p{max-width:720px;margin:8px 0 0;color:#9aa6ba;font-size:16px}
.friend-links{display:flex;align-items:center;justify-content:flex-end;gap:18px;flex-wrap:wrap;color:#9aa6ba;font-size:16px}
.friend-links a{color:#cbd5e1;font-weight:700}
.info-panel h3{margin:24px 0 8px;color:#0f172a}
.info-panel h3:first-of-type{margin-top:14px}
.in-panel{margin-top:20px}
@media(max-width:1100px){.hero{grid-template-columns:1fr}.hero-board{max-width:680px}.category-tiles{grid-template-columns:repeat(3,1fr)}.split,.player{grid-template-columns:1fr}.side-rank{position:static}.grid{grid-template-columns:repeat(2,1fr)}.footer-columns{gap:28px}}
@media(max-width:720px){.nav{align-items:flex-start;flex-direction:column}.user-actions{display:none}.navlinks{justify-content:flex-start}.hero{padding-top:30px}.hero-board{grid-template-columns:1fr}.hero-stack{grid-template-columns:repeat(2,1fr)}.hero-metrics{grid-template-columns:repeat(2,1fr)}.feature-grid,.feature-grid.list,.latest-panel{grid-template-columns:1fr}.category-tiles{grid-template-columns:repeat(2,1fr)}.grid{grid-template-columns:1fr}.section-head{display:block}.mini-card a{grid-template-columns:88px 1fr}.mini-card img{width:88px;height:106px}.hero h1{font-size:42px}.hero h2{font-size:25px}.footer-columns{grid-template-columns:1fr;gap:24px}.footer-col h3{font-size:20px}.footer-bottom{display:block}.friend-links{justify-content:flex-start;margin-top:18px;gap:12px}}