:root{
  --bg:#07102b;--panel:#0d1737;--panel2:#111f46;--text:#f7f8ff;--muted:#aeb9d4;
  --warm:#ff6a4a;--warm2:#ffb146;--cool:#27d5ff;--cool2:#3b78ff;--line:#24345e;
  --paper:#f7f9fd;--ink:#0b1530;--ink2:#53617f;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.65}
a{color:inherit}
.shell{width:min(1120px,calc(100% - 40px));margin:auto}
.nav{position:sticky;top:0;z-index:20;background:rgba(7,16,43,.9);backdrop-filter:blur(14px);border-bottom:1px solid rgba(255,255,255,.08)}
.nav .shell{height:72px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-weight:800;letter-spacing:.02em}
.brand img{width:40px;height:40px;border-radius:12px}
.brand small{display:block;color:var(--muted);font-size:12px;font-weight:600;letter-spacing:.08em}
.links{display:flex;gap:26px;align-items:center}
.links a{text-decoration:none;color:#d7def0;font-size:14px}
.lang{border:1px solid var(--line);padding:8px 12px;border-radius:999px}
.hero{padding:90px 0 72px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center}
.eyebrow{display:inline-flex;gap:8px;align-items:center;padding:7px 11px;border:1px solid rgba(255,255,255,.14);border-radius:999px;color:#dce4fa;font-size:13px;background:rgba(255,255,255,.04)}
.dot{width:7px;height:7px;border-radius:50%;background:linear-gradient(135deg,var(--warm),var(--cool))}
h1{font-size:clamp(54px,7vw,92px);line-height:.96;margin:24px 0 22px;letter-spacing:-.045em}
.gradient{background:linear-gradient(92deg,var(--warm2),var(--warm) 35%,#d756ff 62%,var(--cool));-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:20px;color:#c6d0e8;max-width:660px;margin:0 0 30px}
.cta-row{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-flex;text-decoration:none;align-items:center;justify-content:center;min-height:48px;padding:0 18px;border-radius:12px;font-weight:800}
.btn.primary{background:#fff;color:#08112c}
.btn.secondary{border:1px solid var(--line);color:#e8edfb}
.hero-card{position:relative;background:radial-gradient(circle at 50% 35%,rgba(255,129,81,.18),transparent 24%),radial-gradient(circle at 60% 60%,rgba(53,207,255,.15),transparent 34%),#0b1432;border:1px solid rgba(255,255,255,.09);border-radius:34px;padding:34px;box-shadow:0 35px 90px rgba(0,0,0,.32)}
.hero-card img{display:block;width:min(100%,430px);margin:auto;border-radius:29%}
.status{margin-top:22px;display:flex;justify-content:space-between;gap:14px;color:#b8c2da;font-size:13px}
section{padding:84px 0}
.section-head{max-width:760px;margin-bottom:38px}
.kicker{text-transform:uppercase;letter-spacing:.15em;color:#82a8ff;font-size:12px;font-weight:900}
h2{font-size:clamp(34px,4vw,52px);line-height:1.08;margin:10px 0 14px;letter-spacing:-.025em}
.section-head p{color:var(--muted);font-size:18px}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.025));border:1px solid rgba(255,255,255,.08);border-radius:22px;padding:28px;min-height:220px}
.card .num{font-size:12px;font-weight:900;letter-spacing:.12em;color:#8193bd}
.card h3{font-size:22px;margin:30px 0 9px}
.card p{margin:0;color:#aeb9d4}
.flow{background:var(--paper);color:var(--ink)}
.flow .section-head p{color:var(--ink2)}
.flow-img{background:white;border:1px solid #dfe5f0;border-radius:24px;padding:18px;box-shadow:0 24px 60px rgba(14,28,61,.08)}
.flow-img img{display:block;max-width:100%;margin:auto}
.trust-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.trust{padding:28px;border-radius:22px;border:1px solid rgba(255,255,255,.08);background:#0b1534}
.trust h3{margin:0 0 8px}
.trust p{margin:0;color:var(--muted)}
.notice{margin-top:24px;padding:20px 22px;border:1px solid rgba(255,177,70,.28);border-radius:18px;background:rgba(255,177,70,.06);color:#e8d7b7}
.footer{padding:42px 0;border-top:1px solid rgba(255,255,255,.08);color:#9ca9c6}
.footer-grid{display:grid;grid-template-columns:1fr auto;gap:24px;align-items:end}
.footer-links{display:flex;flex-wrap:wrap;gap:18px}
.footer a{color:#cbd5ec;text-decoration:none}
.paper{background:var(--paper);color:var(--ink);min-height:100vh}
.paper .nav{background:rgba(247,249,253,.95);border-bottom:1px solid #dfe5f0}
.paper .brand{color:var(--ink)}
.paper .links a{color:var(--ink2)}
.paper .lang{border-color:#d4dceb}
.doc{width:min(850px,calc(100% - 40px));margin:0 auto;padding:70px 0 100px}
.doc h1{font-size:48px;line-height:1.05;letter-spacing:-.03em;margin:0 0 12px}
.doc .meta{color:var(--ink2);margin-bottom:42px}
.doc h2{font-size:26px;margin-top:36px}
.doc p,.doc li{color:#35415c}
.doc strong{color:var(--ink)}
.pill{display:inline-block;padding:4px 9px;border-radius:999px;background:#eaf0ff;color:#27438e;font-weight:800;font-size:12px}
.zh{display:none}
body.zh-mode .en{display:none}
body.zh-mode .zh{display:block}
body.zh-mode .en.inline{display:none}
.zh.inline{display:none}
body.zh-mode .zh.inline{display:inline}
@media(max-width:850px){
  .hero-grid,.trust-grid{grid-template-columns:1fr}
  .cards{grid-template-columns:1fr}
  .links a:not(.lang){display:none}
  .hero{padding-top:56px}
  h1{font-size:58px}
  .footer-grid{grid-template-columns:1fr}
}