:root{--bg:#F7F8FA;--fg:#10151C;--muted:#5B6472;--line:#E3E6EB;--green:#F2A20C;--accent-text:#8A5300}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#0C1015;--fg:#EEF1F5;--muted:#9AA3B2;--line:#252D38;--accent-text:#F2A20C}}
:root[data-theme="dark"]{--bg:#0C1015;--fg:#EEF1F5;--muted:#9AA3B2;--line:#252D38;--accent-text:#F2A20C}
*{box-sizing:border-box;margin:0}
body{background:var(--bg);color:var(--fg);font-family:"IBM Plex Sans",system-ui,sans-serif;font-size:18px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit}
:focus-visible{outline:3px solid var(--green);outline-offset:3px;border-radius:6px}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
@media (max-width:600px){.wrap{padding:0 16px}}
.top{background:#10151C;color:#EEF1F5}
nav{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 0}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:600;font-size:22px;letter-spacing:-.03em}
.brand img{width:28px;height:28px}
.brand i{font-style:normal;color:var(--green)}
.back{white-space:nowrap;font-weight:500;font-size:15px;text-decoration:none;background:#F7F8FA;color:#10151C;padding:9px 16px;border-radius:8px}
.hero{padding:56px 0 64px}
h1{font-size:clamp(40px,5.5vw,64px);line-height:1.02;letter-spacing:-.04em;font-weight:600}
.updated{color:#A3A3A3;margin-top:16px;font-size:16px}
.doc{display:grid;grid-template-columns:240px 1fr;gap:64px;padding-top:64px;padding-bottom:96px}
.toc{position:sticky;top:24px;align-self:start;font-size:15px}
.toc ol{list-style:none;padding:0;display:grid;gap:8px}
.toc a{color:var(--muted);text-decoration:none}
.toc a:hover{color:var(--fg)}
article{max-width:44em}
article .intro{font-size:20px;color:var(--muted);margin-bottom:40px}
article h2{font-size:26px;letter-spacing:-.025em;font-weight:600;line-height:1.15;margin:48px 0 14px;scroll-margin-top:24px}
article h2:first-of-type{margin-top:0}
article h3{font-size:19px;margin:24px 0 6px}
article p,article li{color:var(--muted)}
article p+p{margin-top:12px}
article ul{padding-left:22px;margin-top:10px;display:grid;gap:8px}
article strong{color:var(--fg);font-weight:700}
article table{width:100%;border-collapse:collapse;margin-top:14px;font-size:16px}
article th,article td{text-align:left;padding:12px 12px 12px 0;border-top:1px solid var(--line);vertical-align:top}
article th{color:var(--fg)}
article td{color:var(--muted)}
@media (max-width:860px){.doc{grid-template-columns:1fr;gap:32px;padding-top:40px}.toc{position:static;border-bottom:1px solid var(--line);padding-bottom:24px}}
footer{border-top:1px solid var(--line);padding:40px 0 56px;font-size:15px;color:var(--muted)}
footer .row{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
footer .links{display:flex;gap:24px;flex-wrap:wrap}
footer [aria-current]{color:var(--fg);font-weight:700;text-decoration:none}