:root{--ink:#1b1d29;--dim:#5f6478;--line:#e3e5ee;--bg:#f6f7fb;--card:#fff;--accent:#2f5bd0;--hot:#c2410c}
@media(prefers-color-scheme:dark){:root{--ink:#e8eaf3;--dim:#9aa0b8;--line:#272b3a;--bg:#101220;--card:#171a2a;--accent:#7e9cf0;--hot:#e79b6a}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.62 ui-sans-serif,system-ui,"Segoe UI",Tahoma,Verdana,sans-serif}
.bd-wrap{max-width:760px;margin:0 auto;padding:0 18px}
a{color:var(--accent)}
.bd-top{background:var(--card);border-bottom:1px solid var(--line)}
.bd-top .bd-wrap{display:flex;gap:18px;align-items:center;min-height:58px;flex-wrap:wrap}
.bd-brand{font-weight:700;font-size:19px;color:var(--ink);text-decoration:none}
.bd-menu{display:flex;gap:14px;flex-wrap:wrap;font-size:14px}
.bd-menu a{color:var(--dim);text-decoration:none}
.bd-menu a:hover{color:var(--accent)}
.bd-crumbs{font-size:13px;color:var(--dim);margin:16px 0 8px}
.bd-crumbs a{color:var(--dim);text-decoration:none}
h1{font-size:30px;line-height:1.25;margin:8px 0 6px}
h2{font-size:22px;margin:30px 0 10px}
h3{font-size:18px;margin:20px 0 6px}
.bd-meta{color:var(--dim);font-size:13px;margin:0 0 18px}
.bd-lead{color:var(--dim)}
article p,article li{font-size:17px}
article table{width:100%;border-collapse:collapse;margin:18px 0;font-size:15px;background:var(--card)}
article th,article td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
article th{background:color-mix(in srgb,var(--accent) 10%,transparent);font-weight:600}
.bd-toc{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:14px 18px;margin:18px 0}
.bd-toc b{display:block;margin-bottom:6px}
.bd-toc ol{margin:0;padding-left:20px}
.bd-toc a{text-decoration:none}
.bd-related{margin:38px 0}
.bd-related ul,.bd-list{list-style:none;padding:0;margin:0}
.bd-related li,.bd-list li{border-bottom:1px solid var(--line)}
.bd-related li a,.bd-list li a{display:block;padding:10px 0;text-decoration:none}
.bd-related li a:hover,.bd-list li a:hover{color:var(--hot)}
.bd-cols{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:32px;align-items:start}
.bd-side .bd-related{margin:0 0 24px}
.bd-side h2{font-size:17px;margin:0 0 6px}
.bd-side li a{font-size:15px;padding:8px 0}
.bd-cats{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px;margin:22px 0}
.bd-cat{display:block;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px;text-decoration:none;color:var(--ink)}
.bd-cat b{display:block;font-size:17px}
.bd-cat span{color:var(--accent);font-size:13px}
.bd-cat em{display:block;color:var(--dim);font-size:14px;font-style:normal;margin-top:6px}
.bd-pager{display:flex;gap:8px;flex-wrap:wrap;margin:24px 0;font-size:15px}
.bd-pager a,.bd-here,.bd-pager span{padding:6px 11px;border:1px solid var(--line);border-radius:10px;text-decoration:none}
.bd-here{background:var(--accent);color:#fff;border-color:var(--accent)}
.bd-foot{margin-top:50px;background:var(--card);border-top:1px solid var(--line);padding:26px 0}
.bd-foot-brand{font-weight:700}
.bd-foot-about,.bd-foot-note,.bd-foot-copy{color:var(--dim);font-size:14px}
.bd-foot-note{font-size:13px}
.bd-foot-menu{display:flex;gap:12px;flex-wrap:wrap;font-size:14px;margin:12px 0}
.bd-foot-menu a{color:var(--dim);text-decoration:none}
.ad-slot{margin:22px 0;min-height:1px}
@media(max-width:860px){.bd-cols{grid-template-columns:minmax(0,1fr)}}
@media(max-width:640px){h1{font-size:25px}body{font-size:16px}}