:root{--x-ink:#111318;--x-muted:#676d76;--x-line:#e7e9ed;--x-paper:#fff;--x-bg:#f7f8f9;--x-accent:#dfff45;--x-soft:#f1f4ea;--x-max:1180px}
.x-body{background:var(--x-bg);color:var(--x-ink)}
.x-shell{width:min(var(--x-max),calc(100% - 48px));margin:auto}
.x-nav{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.94);backdrop-filter:blur(18px);border-bottom:1px solid var(--x-line)}
.x-nav-row{height:68px;display:flex;align-items:center;gap:30px}.x-brand{font-weight:950;letter-spacing:-.06em;font-size:23px}.x-brand span{color:#879800}.x-navlinks{display:flex;gap:26px;margin-left:24px;font-size:14px;font-weight:720}.x-navlinks a{padding:25px 0 21px;border-bottom:3px solid transparent}.x-navlinks a:hover,.x-navlinks a.active{border-color:var(--x-accent)}.x-spacer{flex:1}.x-parent{font:700 11px/1.2 "DM Mono",monospace;color:#818793;letter-spacing:.08em}.x-menu-btn{display:none}
.x-mobile{display:none;background:#fff;border-bottom:1px solid var(--x-line);padding:10px 24px}.x-mobile.open{display:grid}.x-mobile a{padding:13px 0;font-weight:750;border-bottom:1px solid #f0f1f3}
.x-hero{padding:82px 0 56px;background:#fff;border-bottom:1px solid var(--x-line)}.x-kicker{font:700 11px/1.3 "DM Mono",monospace;letter-spacing:.15em;color:#8a919d;text-transform:uppercase}.x-hero h1{font-size:clamp(48px,6.5vw,82px);line-height:.98;letter-spacing:-.065em;margin:16px 0 20px;max-width:950px}.x-hero p{font-size:18px;line-height:1.75;color:var(--x-muted);max-width:760px;margin:0}.x-hero-meta{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px;font:650 11px "DM Mono",monospace;color:#6f7680}.x-chip{padding:8px 10px;border:1px solid var(--x-line);border-radius:999px;background:#fafafa}
.x-index{padding:30px 0 90px}.x-section{padding:46px 0 28px;border-bottom:1px solid var(--x-line)}.x-section:last-child{border-bottom:0}.x-section-head{display:grid;grid-template-columns:240px 1fr;gap:40px;margin-bottom:24px}.x-section-head h2{font-size:29px;letter-spacing:-.035em;margin:4px 0 8px}.x-section-head p{color:var(--x-muted);line-height:1.7;margin:0;font-size:14px;max-width:620px}.x-section-no{font:700 11px "DM Mono",monospace;color:#999fa8}
.x-articles{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-left:280px}.x-card{display:flex;flex-direction:column;min-height:250px;padding:22px;background:var(--x-paper);border:1px solid var(--x-line);border-radius:16px;transition:.18s ease}.x-card:hover{transform:translateY(-3px);box-shadow:0 12px 32px rgba(18,24,40,.07)}.x-card .meta{font:650 10px "DM Mono",monospace;color:#9aa0aa;letter-spacing:.06em}.x-card h3{font-size:20px;line-height:1.4;letter-spacing:-.025em;margin:26px 0 10px}.x-card p{font-size:13.5px;line-height:1.65;color:var(--x-muted);margin:0}.x-card .go{margin-top:auto;padding-top:24px;font-size:12px;font-weight:800}.x-card.featured{background:var(--x-soft);border-color:#dfe6cf}.x-card.featured .go{display:flex;justify-content:space-between}
.x-footer{background:#111318;color:#9ca3ad;padding:28px 0;font:11px "DM Mono",monospace}.x-footer-row{display:flex;justify-content:space-between;gap:20px}
.x-breadcrumb{padding:24px 0 0;font-size:12px;color:#8b919b}.x-breadcrumb a:hover{color:#111}.x-breadcrumb span{margin:0 8px;color:#c0c4ca}.x-article{background:#fff}.x-article-head{padding:54px 0 36px;border-bottom:1px solid var(--x-line)}.x-article-head h1{font-size:clamp(42px,5.7vw,72px);line-height:1.02;letter-spacing:-.055em;max-width:950px;margin:15px 0 22px}.x-article-deck{font-size:18px;line-height:1.7;color:var(--x-muted);max-width:770px}.x-byline{display:flex;gap:18px;flex-wrap:wrap;margin-top:28px;font:650 11px "DM Mono",monospace;color:#858b94}
.x-article-grid{display:grid;grid-template-columns:210px minmax(0,720px) 1fr;gap:42px;padding:48px 0 90px}.x-toc{position:sticky;top:96px;align-self:start;max-height:calc(100vh - 130px);overflow-y:auto}.x-toc b{font:750 10px "DM Mono",monospace;color:#9ba1aa}.x-toc a{display:block;font-size:12px;color:#6f7580;margin-top:9px;line-height:1.4}.x-prose{font-size:17px;line-height:1.9}.x-prose h2{font-size:30px;line-height:1.25;letter-spacing:-.03em;margin:52px 0 15px}.x-prose p{margin:0 0 22px}.x-callout{border-left:4px solid var(--x-accent);padding:18px 20px;background:#f8faef;margin:30px 0;font-size:15px}.x-prose h3{font-size:22px;line-height:1.4;letter-spacing:-.02em;margin:38px 0 12px}
.x-prose h4{font-size:17.5px;line-height:1.5;margin:28px 0 10px;color:#3d434b}
.x-prose ul,.x-prose ol{margin:0 0 22px;padding-left:26px}
.x-prose li{margin-bottom:9px}
.x-prose li::marker{color:#a3a9b2}
.x-prose a{color:#111318;text-decoration:underline;text-decoration-color:#c9cfd6;text-underline-offset:3px}
.x-prose a:hover{text-decoration-color:#111318}
.x-prose sup.x-ref{font-size:11px;font-weight:750}
.x-prose sup.x-ref a{color:#6f7680;text-decoration:none}
.x-prose sup.x-ref a:hover{color:#111318;text-decoration:underline}
.x-prose pre{background:#f7f8f9;border:1px solid var(--x-line);border-radius:12px;padding:18px 20px;margin:26px 0;font:12.5px/1.75 "DM Mono",ui-monospace,monospace;color:#31363d;overflow-x:auto;white-space:pre}
.x-prose code{font:13px "DM Mono",ui-monospace,monospace;background:#f2f4f6;padding:2px 6px;border-radius:5px}
.x-prose pre code{background:none;padding:0}
.x-table-wrap{overflow-x:auto;margin:30px 0;border:1px solid var(--x-line);border-radius:12px}
.x-table-wrap table{border-collapse:collapse;width:100%;font-size:14.5px}
.x-table-wrap th,.x-table-wrap td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--x-line)}
.x-table-wrap th{background:#fafbfc;font-weight:750;white-space:nowrap}
.x-table-wrap tr:last-child td{border-bottom:0}
.x-refs{margin:0 0 22px;padding-left:24px;font-size:14.5px;color:var(--x-muted);line-height:1.75}
.x-refs li{margin-bottom:12px}
.x-refs a{color:#111318}
.x-rail{align-self:start}.x-rail-card{border:1px solid var(--x-line);border-radius:14px;padding:18px;background:#fafafa;position:sticky;top:96px}.x-rail-card b{font:750 10px "DM Mono",monospace;color:#949aa4}.x-rail-card a{display:block;margin-top:13px;font-size:13px;font-weight:700;line-height:1.45}.x-page{padding:76px 0 90px}.x-page h1{font-size:clamp(45px,6vw,72px);letter-spacing:-.055em;margin:14px 0 18px}.x-page-intro{font-size:18px;line-height:1.7;color:var(--x-muted);max-width:740px}.x-tool-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:44px}.x-tool{background:#fff;border:1px solid var(--x-line);border-radius:16px;padding:24px;min-height:220px}.x-tool small{font:700 10px "DM Mono",monospace;color:#999}.x-tool h3{font-size:22px;margin:30px 0 10px}.x-tool p{font-size:14px;color:var(--x-muted);line-height:1.65}
@media(max-width:900px){.x-shell{width:min(100% - 32px,var(--x-max))}.x-navlinks,.x-parent{display:none}.x-menu-btn{display:block;margin-left:auto;border:1px solid var(--x-line);background:#fff;border-radius:9px;padding:8px 11px}.x-section-head{grid-template-columns:1fr}.x-articles{margin-left:0;grid-template-columns:1fr 1fr}.x-article-grid{grid-template-columns:1fr}.x-toc,.x-rail{position:static}.x-toc{display:flex;gap:14px;flex-wrap:wrap;border-bottom:1px solid var(--x-line);padding-bottom:18px;max-height:none;overflow:visible}.x-toc b{width:100%}.x-toc a{margin:0}.x-rail-card{position:static}.x-tool-grid{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.x-hero{padding:58px 0 40px}.x-articles,.x-tool-grid{grid-template-columns:1fr}.x-card{min-height:220px}.x-footer-row{display:block}.x-footer-row div+div{margin-top:9px}.x-article-head{padding-top:38px}.x-article-grid{gap:28px;padding-top:34px}.x-prose{font-size:16px}}