:root {
  color-scheme: dark;
  --bg: #071018;
  --surface: rgba(15, 30, 43, 0.88);
  --surface-strong: #102231;
  --line: rgba(198, 165, 92, 0.24);
  --line-strong: rgba(198, 165, 92, 0.48);
  --text: #f4f1e8;
  --muted: #a9b6c2;
  --gold: #d6b364;
  --gold-strong: #f1cc78;
  --cyan: #6fc9d0;
  --ok: #7fd7ad;
  --warn: #e7bd73;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
  --radius: 22px;
  --max: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: radial-gradient(circle at 15% -10%, rgba(111,201,208,.15), transparent 34rem), radial-gradient(circle at 90% 0%, rgba(214,179,100,.12), transparent 30rem), linear-gradient(180deg, var(--bg), #061019 42%, #050c12);
  color: var(--text); line-height: 1.65;
}
a { color: inherit; } img { max-width: 100%; } button, a { -webkit-tap-highlight-color: transparent; }
.skip-link { position: fixed; top: -100px; left: 16px; z-index: 1000; background: var(--gold-strong); color: #101820; padding: 10px 14px; border-radius: 10px; }
.skip-link:focus { top: 16px; }
.site-header { position: sticky; top: 0; z-index: 50; backdrop-filter: blur(18px); background: rgba(5,13,20,.82); border-bottom: 1px solid rgba(255,255,255,.06); }
.nav-wrap { max-width: var(--max); margin: 0 auto; min-height: 72px; padding: 0 22px; display: flex; align-items: center; gap: 22px; }
.brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; font-weight: 780; letter-spacing: .01em; white-space: nowrap; }
.brand-mark { width: 36px; height: 36px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: 11px; background: linear-gradient(145deg, rgba(214,179,100,.14), rgba(111,201,208,.10)); }
.brand-mark svg { width: 24px; height: 24px; } .brand span:last-child { font-size: 1rem; }
.nav-links { margin-left: auto; display: flex; align-items: center; gap: 6px; }
.nav-links a, .lang-switch a { text-decoration: none; color: var(--muted); padding: 9px 11px; border-radius: 10px; font-size: .94rem; }
.nav-links a:hover, .nav-links a:focus-visible, .lang-switch a:hover, .lang-switch a:focus-visible { color: var(--text); background: rgba(255,255,255,.06); }
.lang-switch { display: inline-flex; align-items: center; border: 1px solid rgba(255,255,255,.10); border-radius: 12px; padding: 2px; }
.lang-switch a[aria-current="page"] { color: #101820; background: var(--gold-strong); }
.nav-toggle { display: none; margin-left: auto; width: 42px; height: 42px; border: 1px solid rgba(255,255,255,.12); background: rgba(255,255,255,.04); color: var(--text); border-radius: 12px; font-size: 1.2rem; }
main { overflow: hidden; } .container { width: min(var(--max), calc(100% - 44px)); margin: 0 auto; }
.section { padding: 84px 0; } .section.compact { padding: 58px 0; } .section-head { max-width: 760px; margin-bottom: 30px; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; text-transform: uppercase; letter-spacing: .15em; font-weight: 800; font-size: .76rem; color: var(--gold-strong); }
.eyebrow::before { content: ""; width: 24px; height: 1px; background: var(--gold-strong); }
h1,h2,h3 { line-height: 1.13; margin: 0; } h1 { font-size: clamp(2.75rem,7vw,5.8rem); letter-spacing: -.055em; } h2 { font-size: clamp(2rem,4vw,3.35rem); letter-spacing: -.035em; } h3 { font-size: 1.25rem; letter-spacing: -.012em; }
p { margin: 0; } .lead { font-size: clamp(1.08rem,2vw,1.33rem); color: #c8d2db; max-width: 760px; } .muted { color: var(--muted); }
.hero { padding: 94px 0 76px; position: relative; } .hero-grid { display: grid; grid-template-columns: minmax(0,1.25fr) minmax(310px,.75fr); gap: 52px; align-items: center; }
.hero-copy .eyebrow { margin-bottom: 18px; } .hero-copy h1 span { color: var(--gold-strong); } .hero-copy .lead { margin-top: 24px; } .hero-actions { margin-top: 32px; display: flex; gap: 12px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 9px; min-height: 46px; padding: 0 17px; border-radius: 12px; border: 1px solid transparent; text-decoration: none; font-weight: 760; font-size: .94rem; transition: transform .15s ease,border-color .15s ease,background .15s ease; }
.btn:hover { transform: translateY(-1px); } .btn-primary { background: var(--gold-strong); color: #101820; } .btn-secondary { border-color: rgba(255,255,255,.14); background: rgba(255,255,255,.04); color: var(--text); } .btn-quiet { border-color: var(--line); color: var(--gold-strong); background: rgba(214,179,100,.06); }
.hero-panel { padding: 26px; border-radius: 28px; background: linear-gradient(160deg,rgba(16,34,49,.95),rgba(8,21,31,.96)); border: 1px solid var(--line); box-shadow: var(--shadow); }
.orbit { aspect-ratio: 1; width: min(100%,440px); margin: 0 auto; border-radius: 50%; border: 1px solid rgba(214,179,100,.18); position: relative; display: grid; place-items: center; background: radial-gradient(circle,rgba(111,201,208,.10),transparent 55%); }
.orbit::before,.orbit::after { content: ""; position: absolute; inset: 12%; border-radius: 50%; border: 1px dashed rgba(111,201,208,.22); transform: rotate(18deg); } .orbit::after { inset: 28%; border-style: solid; border-color: rgba(214,179,100,.22); }
.orbit-core { z-index: 2; width: 44%; aspect-ratio: 1; border-radius: 28px; display: grid; place-items: center; text-align: center; background: linear-gradient(145deg,rgba(214,179,100,.18),rgba(111,201,208,.13)); border: 1px solid rgba(214,179,100,.38); }
.orbit-core strong { font-size: 1.7rem; letter-spacing: -.04em; } .orbit-core small { color: var(--muted); display: block; font-size: .74rem; letter-spacing: .08em; }
.chip { position: absolute; z-index: 3; background: rgba(8,21,31,.92); border: 1px solid rgba(255,255,255,.12); border-radius: 999px; padding: 8px 11px; font-size: .76rem; color: #d7e0e7; box-shadow: 0 10px 30px rgba(0,0,0,.24); }
.chip.one { top: 10%; left: 5%; } .chip.two { top: 20%; right: 1%; } .chip.three { bottom: 16%; left: 0; } .chip.four { bottom: 7%; right: 7%; }
.grid { display: grid; gap: 18px; } .grid-2 { grid-template-columns: repeat(2,minmax(0,1fr)); } .grid-3 { grid-template-columns: repeat(3,minmax(0,1fr)); }
.card { border: 1px solid rgba(255,255,255,.09); background: linear-gradient(155deg,rgba(15,31,44,.86),rgba(9,22,32,.86)); border-radius: var(--radius); padding: 24px; box-shadow: 0 18px 50px rgba(0,0,0,.15); }
.card.emphasis { border-color: var(--line-strong); } .card h3+p { margin-top: 12px; } .card p { color: var(--muted); } .card-actions { margin-top: 20px; display: flex; gap: 10px; flex-wrap: wrap; }
.status { display: inline-flex; align-items: center; gap: 8px; font-size: .78rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; color: var(--ok); margin-bottom: 14px; }
.status::before { content:""; width:8px; height:8px; border-radius:50%; background:currentColor; box-shadow:0 0 0 4px rgba(127,215,173,.10); } .status.dev { color: var(--warn); } .status.private { color: var(--cyan); }
.steps { counter-reset: steps; } .step { position: relative; padding-left: 56px; } .step::before { counter-increment: steps; content: "0" counter(steps); position: absolute; left: 0; top: 1px; color: var(--gold-strong); font-size: .83rem; font-weight: 800; letter-spacing: .08em; }
.quote { border-left: 2px solid var(--gold); padding: 7px 0 7px 22px; color: #e8e5dd; font-size: clamp(1.25rem,2.4vw,1.8rem); line-height: 1.45; max-width: 900px; }
.trust { display: grid; grid-template-columns: auto 1fr; gap: 18px; align-items: start; } .trust-icon { width: 46px; height: 46px; border-radius: 14px; display: grid; place-items:center; background: rgba(111,201,208,.10); border: 1px solid rgba(111,201,208,.22); color: var(--cyan); }
.notice { border: 1px solid rgba(231,189,115,.28); background: rgba(231,189,115,.07); border-radius: 16px; padding: 16px 18px; color: #ddd5c4; }
.prose { max-width: 830px; } .prose h1 { font-size: clamp(2.4rem,6vw,4.7rem); } .prose h2 { font-size: clamp(1.55rem,3vw,2.25rem); margin-top: 44px; } .prose h3 { margin-top: 30px; } .prose p,.prose ul { color: #c0cbd4; margin-top: 16px; } .prose li+li { margin-top: 7px; } .prose a { color: var(--gold-strong); }
.page-hero { padding: 82px 0 34px; } .page-hero .lead { margin-top: 22px; }
.site-footer { border-top: 1px solid rgba(255,255,255,.07); padding: 36px 0 48px; color: var(--muted); } .footer-grid { display: flex; gap: 24px; justify-content: space-between; align-items: flex-start; } .footer-links { display:flex; flex-wrap:wrap; gap:8px 14px; } .footer-links a { color: var(--muted); text-decoration:none; font-size:.91rem; } .footer-links a:hover { color: var(--text); } .footer-note { max-width: 560px; font-size: .89rem; margin-top: 8px; }
@media (max-width:900px) { .hero-grid { grid-template-columns: 1fr; gap: 36px; } .hero-panel { max-width: 580px; } .grid-3 { grid-template-columns: 1fr 1fr; } .nav-toggle { display:inline-grid; place-items:center; } .nav-links { display:none; position:absolute; top:72px; left:18px; right:18px; padding:12px; background:rgba(7,16,24,.98); border:1px solid rgba(255,255,255,.10); border-radius:16px; box-shadow:var(--shadow); } .nav-links.open { display:grid; } .nav-links a { padding:12px 13px; } }
@media (max-width:650px) { .container { width:min(100% - 30px,var(--max)); } .nav-wrap { padding:0 15px; gap:10px; } .brand span:last-child { display:none; } .section { padding:64px 0; } .hero { padding:64px 0 58px; } .grid-2,.grid-3 { grid-template-columns:1fr; } .footer-grid { flex-direction:column; } .hero-actions .btn { width:100%; } .chip { font-size:.68rem; } }
@media (prefers-reduced-motion:reduce) { html { scroll-behavior:auto; } *,*::before,*::after { transition:none !important; } }