:root{
  --bg:#f6f8fc;--card:#ffffff;--text:#172033;--muted:#5c6780;--primary:#2563eb;--primary2:#0f4fd4;--line:#e7ebf3;--dark:#0b1220;--ok:#0f9f6e;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,"Segoe UI",Arial,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.65}
a{color:inherit;text-decoration:none}.container{width:min(1120px,92%);margin:0 auto}.topbar{background:var(--dark);color:#dbe5ff;font-size:13px}.topbar .container{display:flex;justify-content:space-between;padding:8px 0;gap:16px;flex-wrap:wrap}
header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}.nav{display:flex;align-items:center;justify-content:space-between;min-height:72px;gap:20px}.brand{display:flex;align-items:center;gap:12px;font-weight:800}.mark{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;background:linear-gradient(135deg,#1d4ed8,#60a5fa);color:white;font-weight:900;box-shadow:0 8px 24px rgba(37,99,235,.25)}.brand small{display:block;font-size:11px;color:var(--muted);font-weight:600}.navlinks{display:flex;gap:22px;align-items:center;font-size:14px;font-weight:650}.navlinks a:hover{color:var(--primary)}.cta{background:var(--primary);color:#fff!important;padding:10px 16px;border-radius:10px}.menu{display:none;background:none;border:0;font-size:24px}
.hero{padding:92px 0 68px;background:radial-gradient(circle at 80% 20%,rgba(96,165,250,.23),transparent 34%),linear-gradient(180deg,#fff,#f6f8fc)}.hero-grid{display:grid;grid-template-columns:1.14fr .86fr;gap:46px;align-items:center}.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 10px;border-radius:999px;background:#eaf1ff;color:#1446b8;font-weight:700;font-size:13px}.hero h1{font-size:50px;line-height:1.1;margin:18px 0 18px;letter-spacing:-.03em}.hero p{font-size:18px;color:var(--muted);max-width:760px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 18px;border-radius:11px;border:1px solid var(--line);background:#fff;font-weight:750}.btn.primary{background:var(--primary);color:#fff;border-color:var(--primary)}.btn:hover{transform:translateY(-1px)}
.hero-card{background:#0f172a;color:white;border-radius:24px;padding:28px;box-shadow:0 30px 70px rgba(15,23,42,.18)}.hero-card h3{margin-top:0}.channel-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.channel{padding:12px;border:1px solid rgba(255,255,255,.12);border-radius:12px;background:rgba(255,255,255,.06);font-size:14px}.status{display:inline-flex;align-items:center;gap:7px;font-size:12px;color:#c7d7ff}.dot{width:8px;height:8px;background:#34d399;border-radius:50%}
section{padding:72px 0}.section-title{max-width:760px;margin:0 auto 34px;text-align:center}.section-title h2{font-size:34px;margin:0 0 10px}.section-title p{color:var(--muted)}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:0 10px 30px rgba(15,23,42,.04)}.icon{width:42px;height:42px;border-radius:12px;background:#edf3ff;color:var(--primary);display:grid;place-items:center;font-weight:900;margin-bottom:16px}.card h3{margin:0 0 8px}.card p{margin:0;color:var(--muted)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}.panel{background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px}.checklist{list-style:none;padding:0;margin:0}.checklist li{padding:8px 0 8px 28px;position:relative}.checklist li:before{content:"✓";position:absolute;left:0;color:var(--ok);font-weight:900}
.band{background:linear-gradient(135deg,#0f172a,#193b8c);color:#fff}.band .section-title p{color:#cbd5e1}.logos{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}.pill{border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.06);padding:9px 14px;border-radius:999px}
.legal-hero{padding:58px 0 28px;background:#fff;border-bottom:1px solid var(--line)}.legal{padding:48px 0}.legal article{max-width:900px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:16px;padding:36px}.legal h1{font-size:36px}.legal h2{font-size:22px;margin-top:30px}.legal h3{font-size:18px;margin-top:22px}.legal p,.legal li{color:#364154}.legal .updated{font-size:13px;color:var(--muted)}.notice{padding:14px 16px;background:#f4f7ff;border-left:4px solid var(--primary);border-radius:8px;margin:18px 0}.code{background:#0f172a;color:#dbeafe;padding:14px 16px;border-radius:10px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;overflow:auto}
footer{background:#0b1220;color:#cbd5e1;padding:46px 0 24px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:28px}.footer-grid h4{color:#fff;margin-top:0}.footer-grid a{display:block;margin:8px 0;color:#cbd5e1}.copyright{border-top:1px solid rgba(255,255,255,.1);margin-top:28px;padding-top:20px;font-size:13px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.lang-switch{display:flex;gap:8px;align-items:center}.lang-switch button{border:1px solid var(--line);background:#fff;padding:6px 9px;border-radius:8px;cursor:pointer}.lang-switch button.active{background:var(--primary);color:#fff;border-color:var(--primary)}
@media(max-width:860px){.hero-grid,.split{grid-template-columns:1fr}.cards{grid-template-columns:1fr 1fr}.navlinks{display:none;position:absolute;left:4%;right:4%;top:74px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px;flex-direction:column;align-items:flex-start}.navlinks.open{display:flex}.menu{display:block}.hero h1{font-size:40px}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.cards,.footer-grid{grid-template-columns:1fr}.hero{padding-top:62px}.hero h1{font-size:34px}.legal article{padding:24px}.section-title h2{font-size:29px}}