:root {
  --ink: #f7f1e8;
  --muted: #b9afa4;
  --bg: #0f1112;
  --panel: #191c1d;
  --line: rgba(247, 241, 232, .14);
  --gold: #d4a35a;
  --gold-soft: rgba(212, 163, 90, .16);
  --max: 1180px;
  --serif: "Songti SC", "Noto Serif SC", STSong, serif;
  --sans: "Avenir Next", "PingFang SC", "Microsoft YaHei", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--bg); font-family: var(--sans); line-height: 1.7; }
a { color: inherit; text-decoration: none; }
img { display: block; width: 100%; }
.shell { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; }
.site-header { position: fixed; inset: 18px 0 auto; z-index: 10; }
.nav { display:flex; align-items:center; justify-content:space-between; gap:24px; padding:12px 16px 12px 20px; border:1px solid var(--line); border-radius:999px; background:rgba(15,17,18,.68); backdrop-filter:blur(18px); }
.brand { display:flex; align-items:center; gap:12px; min-width:0; }
.brand-mark { display:grid; place-items:center; width:40px; height:40px; border-radius:50%; color:#1a1712; background:var(--gold); font:700 18px var(--serif); }
.brand-copy { display:grid; line-height:1.1; }
.brand-name { font:700 18px var(--serif); letter-spacing:.04em; }
.brand-sub { margin-top:4px; color:var(--muted); font-size:10px; letter-spacing:.18em; text-transform:uppercase; }
.nav-links { display:flex; align-items:center; gap:6px; flex-wrap:wrap; justify-content:flex-end; }
.nav-links a { padding:8px 12px; color:var(--muted); font-size:13px; border-radius:999px; }
.nav-links a:hover,.nav-links a[aria-current=page] { color:var(--ink); background:var(--gold-soft); }
.nav-cta { color:#19140d !important; background:var(--gold) !important; font-weight:700; }
.hero { position:relative; min-height:100svh; display:grid; align-items:end; overflow:hidden; }
.hero-art { position:absolute; inset:0; background: radial-gradient(circle at 75% 20%, rgba(212,163,90,.35), transparent 20%), linear-gradient(135deg,#1b2726 0%,#101415 52%,#211910 100%); }
.hero-art:before { content:""; position:absolute; inset:18% -12% -18% 32%; background: linear-gradient(125deg, transparent 12%, rgba(90,127,114,.28) 12.2% 20%, transparent 20.3%), linear-gradient(160deg, transparent 35%, rgba(212,163,90,.12) 35.2% 47%, transparent 47.2%), radial-gradient(ellipse at 60% 62%, rgba(166,114,52,.45), transparent 38%); transform:rotate(-7deg); }
.hero-art:after { content:""; position:absolute; inset:0; background:linear-gradient(90deg,rgba(8,10,10,.9) 0%,rgba(8,10,10,.5) 46%,rgba(8,10,10,.2) 100%),linear-gradient(0deg,rgba(8,10,10,.8),transparent 55%); }
.hero-inner { position:relative; z-index:1; padding:150px 0 80px; }
.eyebrow { display:flex; flex-wrap:wrap; gap:8px; margin-bottom:24px; }
.eyebrow span,.tag { display:inline-flex; padding:6px 11px; border:1px solid var(--line); border-radius:999px; color:var(--gold); font-size:12px; }
h1,h2,h3 { margin:0; font-family:var(--serif); font-weight:700; line-height:1.12; }
h1 { max-width:700px; font-size:clamp(54px,8vw,104px); letter-spacing:-.05em; }
.hero-lede { max-width:560px; margin:24px 0 0; color:#ddd2c5; font-size:18px; }
.hero-actions { display:flex; flex-wrap:wrap; gap:12px; margin-top:32px; }
.button { display:inline-flex; align-items:center; justify-content:center; min-height:48px; padding:0 20px; border:1px solid var(--gold); border-radius:999px; color:#19140d; background:var(--gold); font-weight:700; }
.button.ghost { color:var(--ink); background:transparent; border-color:var(--line); }
.button:hover { transform:translateY(-2px); }
.hero-note { max-width:520px; margin-left:auto; padding:22px; border-left:2px solid var(--gold); color:#ded4c9; background:rgba(15,17,18,.46); }
.hero-note strong { display:block; margin-bottom:7px; color:var(--gold); font-size:12px; letter-spacing:.14em; }
.section { padding:100px 0; }
.section.alt { background:#151819; }
.section-head { max-width:760px; margin-bottom:42px; }
.kicker { margin:0 0 12px; color:var(--gold); font-size:12px; letter-spacing:.18em; text-transform:uppercase; }
.section-title { font-size:clamp(34px,5vw,64px); }
.section-copy { max-width:680px; margin:18px 0 0; color:var(--muted); font-size:17px; }
.grid-3 { display:grid; grid-template-columns:repeat(3,1fr); gap:18px; }
.grid-2 { display:grid; grid-template-columns:repeat(2,1fr); gap:18px; }
.panel { padding:28px; border-top:1px solid var(--line); background:linear-gradient(160deg,rgba(255,255,255,.04),transparent); }
.panel h3 { margin-top:12px; font-size:28px; }
.panel p { margin:12px 0 0; color:var(--muted); }
.panel .index { color:var(--gold); font:700 14px var(--sans); letter-spacing:.15em; }
.list { margin:18px 0 0; padding:0; list-style:none; }
.list li { position:relative; padding-left:18px; color:#cfc4b7; }
.list li+li { margin-top:8px; }
.list li:before { content:""; position:absolute; left:0; top:.8em; width:6px; height:6px; border-radius:50%; background:var(--gold); }
.facts { display:grid; grid-template-columns:repeat(4,1fr); gap:0; border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.fact { padding:24px 20px; border-right:1px solid var(--line); }
.fact:last-child { border-right:0; }
.fact strong { display:block; color:var(--gold); font:700 30px var(--serif); }
.fact span { display:block; margin-top:5px; color:var(--muted); font-size:13px; }
.split { display:grid; grid-template-columns:1fr 1fr; gap:52px; align-items:center; }
.art { min-height:360px; border:1px solid var(--line); background:linear-gradient(135deg,#263b35,#111718 54%,#3d2919); position:relative; overflow:hidden; }
.art:before { content:""; position:absolute; width:70%; height:150%; left:18%; top:-24%; border-radius:50%; border:1px solid rgba(212,163,90,.5); transform:rotate(28deg); box-shadow:0 0 0 28px rgba(212,163,90,.08),0 0 0 56px rgba(212,163,90,.05); }
.art:after { content:""; position:absolute; width:42%; height:42%; right:11%; bottom:15%; border:1px solid rgba(247,241,232,.32); transform:skew(-12deg); background:rgba(247,241,232,.06); }
.page-hero { padding:180px 0 72px; background:linear-gradient(180deg,#1b2826,#0f1112); }
.page-hero h1 { font-size:clamp(44px,6vw,76px); }
.page-hero p { max-width:720px; color:var(--muted); font-size:18px; }
.product-table { width:100%; border-collapse:collapse; margin-top:24px; }
.product-table th,.product-table td { padding:16px 12px; border-bottom:1px solid var(--line); text-align:left; vertical-align:top; }
.product-table th { color:var(--gold); font-size:12px; letter-spacing:.12em; text-transform:uppercase; }
.product-table td { color:#d7cec3; }
.faq { border-top:1px solid var(--line); }
.faq details { border-bottom:1px solid var(--line); }
.faq summary { cursor:pointer; padding:20px 0; color:var(--ink); font:700 22px var(--serif); list-style:none; }
.faq summary::-webkit-details-marker { display:none; }
.faq summary:after { content:"+"; float:right; color:var(--gold); font:400 28px var(--sans); }
.faq details[open] summary:after { content:"−"; }
.faq .answer { padding:0 38px 22px 0; color:var(--muted); }
.article-list { display:grid; gap:1px; background:var(--line); }
.article-row { display:grid; grid-template-columns:150px 1fr auto; gap:20px; align-items:center; padding:22px; background:var(--panel); }
.article-row time { color:var(--gold); font-size:12px; letter-spacing:.1em; }
.article-row h3 { font-size:24px; }
.article-row p { margin:6px 0 0; color:var(--muted); }
.article-row a { color:var(--gold); font-size:13px; }
.footer { padding:46px 0 70px; border-top:1px solid var(--line); color:var(--muted); }
.footer-grid { display:grid; grid-template-columns:1fr auto; gap:24px; align-items:end; }
.footer strong { display:block; color:var(--ink); font:700 22px var(--serif); }
.footer p { margin:10px 0 0; }
[data-reveal] { opacity:0; transform:translateY(18px); transition:opacity .7s ease,transform .7s ease; }
[data-reveal].is-visible { opacity:1; transform:none; }
@media (max-width: 900px) { .nav-links a:not(.nav-cta) { display:none; } .grid-3,.grid-2,.split { grid-template-columns:1fr; } .facts { grid-template-columns:repeat(2,1fr); } .fact:nth-child(2) { border-right:0; } .fact:nth-child(-n+2) { border-bottom:1px solid var(--line); } .article-row { grid-template-columns:1fr; gap:8px; } }
@media (max-width: 560px) { .shell { width:min(calc(100% - 24px),var(--max)); } .site-header { inset:10px 0 auto; } .nav { border-radius:24px; } .brand-name { font-size:15px; } .hero-inner { padding:142px 0 46px; } h1 { font-size:clamp(48px,16vw,76px); } .hero-lede { font-size:16px; } .section { padding:72px 0; } .facts { grid-template-columns:1fr; } .fact,.fact:nth-child(2) { border-right:0; border-bottom:1px solid var(--line); } .fact:last-child { border-bottom:0; } .footer-grid { grid-template-columns:1fr; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior:auto; } [data-reveal] { opacity:1; transform:none; transition:none; } }