:root{--bg:#fbfaf7;--fg:#1b1d27;--mut:#5b6072;--card:#fff;--line:#e4e1d8;--acc:#b06a00;--accbg:#fdf0d5;--code:#f1efe8}
@media (prefers-color-scheme:dark){:root{--bg:#0f1117;--fg:#ecebe6;--mut:#a3a8ba;--card:#171a23;--line:#2a2e3b;--acc:#f2b84b;--accbg:#2a2312;--code:#1d212c}}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
.wrap{max-width:960px;margin:0 auto;padding:0 20px}
a{color:var(--acc)}a:hover{text-decoration-thickness:2px}
header.top{border-bottom:1px solid var(--line)}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;height:60px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--fg);text-decoration:none}
.brand img{width:26px;height:26px}
nav a{margin-left:18px;color:var(--mut);text-decoration:none;font-size:15px}nav a:hover{color:var(--fg)}
.hero{padding:72px 0 40px;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:40px;align-items:center}
.hero-logo{width:100%;height:auto;border-radius:20px;border:1px solid var(--line);box-shadow:0 18px 50px rgba(20,60,110,.28)}
.hero h1{font-size:clamp(2rem,5vw,3.2rem);line-height:1.1;margin:0 0 16px;letter-spacing:-.02em}
.hero p.lead{font-size:1.2rem;color:var(--mut);max-width:640px;margin:0 0 28px}
.etym{display:inline-block;background:var(--accbg);color:var(--acc);border-radius:999px;padding:4px 12px;font-size:14px;margin-bottom:18px}
.btns{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;padding:11px 20px;border-radius:8px;border:1px solid var(--line);color:var(--fg);text-decoration:none;font-weight:600;background:var(--card)}
.btn.primary{background:var(--fg);color:var(--bg);border-color:var(--fg)}
pre,code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.9em}
pre{background:var(--code);border:1px solid var(--line);border-radius:10px;padding:16px;overflow-x:auto;margin:16px 0}
code{background:var(--code);padding:1px 5px;border-radius:4px}pre code{background:none;padding:0}
section{padding:36px 0;border-top:1px solid var(--line)}
section h2{font-size:1.6rem;margin:0 0 8px;letter-spacing:-.01em}
section>p.sub{color:var(--mut);margin:0 0 20px;max-width:700px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:14px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px}
.card h3{margin:0 0 6px;font-size:1.05rem}.card p{margin:0;color:var(--mut);font-size:.95rem}
table{width:100%;border-collapse:collapse;background:var(--card);border:1px solid var(--line);border-radius:10px;overflow:hidden;font-size:.95rem}
th,td{text-align:left;padding:10px 14px;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--code);font-weight:600}tr:last-child td{border-bottom:0}
.tablewrap{overflow-x:auto}
.note{background:var(--accbg);border-radius:10px;padding:14px 16px;margin-top:16px;font-size:.95rem}
details{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:12px 16px;margin-bottom:10px}
summary{cursor:pointer;font-weight:600}details p{color:var(--mut);margin:10px 0 0}
footer{border-top:1px solid var(--line);padding:28px 0;color:var(--mut);font-size:.9rem}
@media (max-width:820px){.hero{grid-template-columns:1fr;gap:28px}.hero-logo{max-width:420px;margin:0 auto}}
@media (max-width:560px){nav a:not(.gh){display:none}.hero{padding-top:44px}}
.doc{padding:40px 20px 60px}
.doc article{max-width:820px}
.doc h1{font-size:clamp(1.8rem,4vw,2.6rem);line-height:1.15;letter-spacing:-.02em;margin:0 0 18px}
.doc h2{font-size:1.45rem;margin:38px 0 10px;letter-spacing:-.01em}
.doc h3{font-size:1.15rem;margin:28px 0 8px}
.doc h4,.doc h5,.doc h6{font-size:1rem;margin:22px 0 6px}
.doc p,.doc li{line-height:1.65}
.doc ul,.doc ol{padding-left:24px}
.doc li{margin:4px 0}
.doc blockquote{margin:18px 0;padding:10px 16px;border-left:3px solid var(--acc);background:var(--card);color:var(--mut)}
.doc hr{border:0;border-top:1px solid var(--line);margin:30px 0}
.doc .tablewrap{margin:18px 0}
.doc table{font-size:.92rem}
.doc code{overflow-wrap:anywhere}
.doc footer{margin-top:50px;border-top:1px solid var(--line);padding-top:18px}