:root{--ink:#1a1612;--ink-soft:#3a332c;--ivory:#f7f2ea;--paper:#fcf9f4;--line:#e8e0d4;--gold:#b8915a;--muted:#746a62;--serif:Georgia,"Times New Roman","Songti SC",serif;--sans:"PingFang SC","Microsoft YaHei",system-ui,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);line-height:1.8}a{color:inherit}.wrap{width:min(1120px,calc(100% - 40px));margin:auto}.topbar{position:sticky;top:0;z-index:10;background:rgba(252,249,244,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.nav{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}.logo img{height:42px;width:auto;display:block}.nav-links{display:flex;gap:22px;align-items:center;font-size:14px}.nav-links a{text-decoration:none;color:var(--ink-soft)}.nav-links a:hover{color:var(--gold)}.hero{padding:100px 0 58px;background:radial-gradient(circle at 82% 10%,rgba(184,145,90,.2),transparent 32%),linear-gradient(135deg,#201a15,#0f0c09);color:#fff}.eyebrow{color:#d3b17e;letter-spacing:.2em;text-transform:uppercase;font-size:12px}.hero h1{font:400 clamp(38px,6vw,68px)/1.08 var(--serif);margin:14px 0}.hero p{max-width:680px;color:rgba(255,255,255,.72)}.layout{display:grid;grid-template-columns:230px minmax(0,1fr);gap:70px;padding:70px 0 100px}.toc{position:sticky;top:110px;align-self:start;border-left:1px solid var(--line);padding-left:22px}.toc a{display:block;text-decoration:none;color:var(--muted);font-size:14px;margin:0 0 12px}.toc a:hover{color:var(--gold)}article{max-width:760px}article h2{font:400 32px/1.25 var(--serif);margin:54px 0 14px;scroll-margin-top:110px}article h2:first-child{margin-top:0}article h3{font:500 18px/1.4 var(--sans);margin:28px 0 8px}article p,article li{color:var(--ink-soft)}article ul{padding-left:22px}.notice{padding:20px 24px;border:1px solid var(--line);background:var(--ivory);border-radius:4px}.meta{font-size:13px;color:var(--muted)}footer{border-top:1px solid var(--line);padding:34px 0 48px;color:var(--muted);font-size:13px}.foot{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}.foot a{margin-right:16px}@media(max-width:760px){.nav-links a:not(:last-child){display:none}.layout{grid-template-columns:1fr;padding-top:42px}.toc{display:none}.hero{padding-top:72px}.wrap{width:min(100% - 28px,1120px)}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}