:root{--ink:#14161a;--muted:#5b6270;--line:#e4e6ea;--bg:#ffffff;--accent:#1f3a5f}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Helvetica Neue",Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
.wrap{max-width:760px;margin:0 auto;padding:0 24px}
header{border-bottom:1px solid var(--line)}
header .wrap{display:flex;justify-content:space-between;align-items:center;height:72px}
.brand{display:flex;align-items:center;gap:12px;font-weight:700;letter-spacing:.08em;text-decoration:none;color:var(--ink)}
.brand img{display:block;width:36px;height:36px}
.hero-logo{display:block;width:120px;height:120px;margin-bottom:32px}
nav a{color:var(--muted);text-decoration:none;margin-left:24px;font-size:15px}
nav a:hover{color:var(--ink)}
.hero{padding:96px 0 64px}
h1{font-size:44px;line-height:1.1;letter-spacing:-.02em;margin-bottom:20px}
h2{font-size:22px;margin:48px 0 12px}
h3{font-size:17px;margin:28px 0 6px}
p,li{color:var(--muted);font-size:17px}
p+p{margin-top:12px}
ul{padding-left:20px;margin-top:8px}
.lead{font-size:20px;max-width:560px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-top:16px}
.card{border:1px solid var(--line);border-radius:14px;padding:22px}
.card h3{margin:0 0 6px;color:var(--ink)}
.card p{font-size:15px}
a{color:var(--accent)}
.section{padding-bottom:40px}
footer{border-top:1px solid var(--line);margin-top:64px;padding:28px 0;font-size:14px;color:var(--muted)}
footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
footer a{color:var(--muted)}
.doc{padding:64px 0 24px}
.doc h1{font-size:36px}
.updated{font-size:14px;margin-bottom:32px}
@media (max-width:560px){h1{font-size:34px}.hero{padding:64px 0 40px}nav a{margin-left:16px}}