:root{--bg:#0d1117;--card:#161b22;--fg:#e6edf3;--mut:#9aa7b4;--acc:#2f81f7;--acc2:#3fb950}
*{box-sizing:border-box}body{margin:0;font:17px/1.6 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--fg)}
a{color:var(--acc)}.wrap{max-width:960px;margin:0 auto;padding:0 20px}
header{padding:18px 0;border-bottom:1px solid #222}header .wrap{display:flex;justify-content:space-between;align-items:center}
.logo{display:flex;gap:10px;align-items:center;font-weight:700;font-size:20px;color:var(--fg);text-decoration:none}
.hero{padding:64px 0 40px;text-align:center}.hero h1{font-size:42px;margin:0 0 12px}.hero p{color:var(--mut);font-size:20px;max-width:680px;margin:0 auto 28px}
.btn{display:inline-block;background:var(--acc2);color:#04130a;font-weight:700;padding:15px 28px;border-radius:10px;text-decoration:none;font-size:18px}
.note{color:var(--mut);font-size:14px;margin-top:12px}.badge{display:inline-block;border:1px solid #30363d;border-radius:20px;padding:3px 12px;font-size:13px;color:var(--mut);margin-bottom:18px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:18px;margin:30px 0}
.card{background:var(--card);border:1px solid #30363d;border-radius:14px;padding:22px}.card h3{margin:10px 0 6px}.card p{margin:0;color:var(--mut)}
.card svg{width:36px;height:36px;stroke:var(--acc);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
h2{margin-top:48px}ol li,ul li{margin:6px 0}.doc{max-width:760px}.doc h2{margin-top:30px;font-size:22px}
footer{border-top:1px solid #222;margin-top:60px;padding:26px 0;color:var(--mut);font-size:14px}footer .wrap{display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between}
code{word-break:break-all;font-size:13px}