:root{--ground:#EBEFF0;--surface:#FFFFFF;--ink:#141D24;--muted:#5A6A74;--line:#D2DADE;--accent:#0B6B72;--accent-ink:#07474C;--accent-soft:#DCECED;--on-accent:#fff;--nerve:#96691A;--nerve-soft:#F0E5C9;--f-display:"IBM Plex Serif",Georgia,"Times New Roman",serif;--f-body:"IBM Plex Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif}
@media (prefers-color-scheme:dark){:root{--ground:#0F1519;--surface:#161F25;--ink:#E4EBEE;--muted:#9BABB4;--line:#29343B;--accent:#49A8AE;--accent-ink:#8FD2D6;--accent-soft:#123234;--on-accent:#0F1519;--nerve:#D3A44E;--nerve-soft:#332913}}
*{box-sizing:border-box}
body{margin:0;background:var(--ground);color:var(--ink);font:16px/1.65 var(--f-body)}
a{color:var(--accent-ink)}
.top,.foot,main{max-width:760px;margin:0 auto;padding:0 16px}
.top{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;padding-block:18px}
.brand{font-weight:600;text-decoration:none;color:var(--ink)}.brand span{color:var(--accent)}
.langs{font-size:14px;color:var(--muted)}
main{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding-block:8px 24px}
h1,h2,h3{font-family:var(--f-display);line-height:1.25}
h1{font-size:clamp(26px,5vw,36px);margin:16px 0 8px}
h2{font-size:22px;margin-top:36px;border-top:1px solid var(--line);padding-top:20px}
h2 small{display:block;font:600 12px/1.4 var(--f-body);color:var(--nerve);text-transform:uppercase;letter-spacing:.06em}
.lead{font-size:18px;color:var(--muted)}
.crumbs{font-size:14px;color:var(--muted);padding-top:12px}
figure{margin:16px 0}figure img{width:100%;height:auto;border-radius:8px;background:var(--ground)}
figcaption{font-size:12px;color:var(--muted)}
dl{display:grid;grid-template-columns:max-content 1fr;gap:6px 16px}dt{font-weight:600}dd{margin:0}
@media (max-width:540px){dl{grid-template-columns:1fr}dd{margin-bottom:8px}}
.refs{font-size:14px;color:var(--muted)}.refs li{margin-bottom:6px}
.links{padding-left:20px}.steps li{margin-bottom:10px}.steps p{margin:4px 0 0}
.locked{background:var(--nerve-soft);border-left:4px solid var(--nerve);padding:10px 14px;border-radius:6px}
.toc ul{columns:2;font-size:15px}@media (max-width:540px){.toc ul{columns:1}}
.button{display:inline-block;background:var(--accent);color:var(--on-accent);padding:10px 18px;border-radius:8px;text-decoration:none;font-weight:600}
.cta{margin-top:32px}
.foot{font-size:13px;color:var(--muted);padding-block:20px 40px}