:root{--ink:#0B1F3A;--blue:#1F6FEB;--blue-d:#1758C4;--paper:#F6F8FB;--line:#DCE3EE;--muted:#52627A;
  --display:"Bricolage Grotesque",system-ui,sans-serif;--body:"Inter",system-ui,sans-serif;--mono:"JetBrains Mono",ui-monospace,monospace}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:var(--body);color:var(--ink);background:#fff;line-height:1.7;font-size:16px}
a{color:var(--blue)}a:hover{color:var(--blue-d)}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.nav{border-bottom:1px solid var(--line);background:#fff}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:9px;text-decoration:none;font-family:var(--display);font-weight:800;font-size:22px;letter-spacing:-.03em;color:var(--ink)}
.brand img{width:30px;height:30px}.brand b{color:var(--blue);font-weight:800}
.back{font-size:15px;font-weight:500;color:var(--muted);text-decoration:none}.back:hover{color:var(--ink)}
.doc{max-width:760px;margin:0 auto;padding:56px 20px 80px}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--blue);font-weight:700}
h1{font-family:var(--display);font-weight:800;letter-spacing:-.02em;line-height:1.08;font-size:clamp(34px,5vw,48px);margin:12px 0 10px}
.updated{color:var(--muted);font-size:14px;margin-bottom:28px}
h2{font-family:var(--display);font-weight:700;letter-spacing:-.01em;font-size:22px;line-height:1.25;margin:40px 0 12px}
p,li{color:#24364F}
p+p{margin-top:12px}
ul{margin:12px 0 0 22px}li+li{margin-top:6px}
.toc{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:18px 22px;margin:8px 0 8px}
.toc ol{margin-left:20px;columns:2;column-gap:28px;font-size:15px}.toc li{margin:0 0 4px}
.box{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:22px 24px;margin-top:14px}
.box h3{font-family:var(--display);font-size:18px;margin-bottom:8px}
footer{background:#081629;color:#8C9CB6;padding:36px 0;font-size:14px}
footer .wrap{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
footer a{color:#8C9CB6;text-decoration:none;margin-right:20px}footer a:hover{color:#fff}
@media (max-width:640px){.toc ol{columns:1}.doc{padding-top:40px}}