:root{--bg:#0d0f14;--card:#151922;--text:#e6e8ee;--muted:#8b93a7;--accent:#7c5cff;--accent2:#00d4ff}
*{box-sizing:border-box;margin:0;padding:0}
body{background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;line-height:1.6;min-height:100vh;display:flex;flex-direction:column}
main{flex:1;width:100%;max-width:860px;margin:0 auto;padding:48px 20px}
.hero{text-align:center;padding:80px 0 40px}
.logo{font-size:clamp(2.6rem,8vw,4.5rem);font-weight:800;letter-spacing:-0.03em;background:linear-gradient(90deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
.tag{color:var(--muted);font-size:1.15rem;margin-top:12px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-top:48px}
.card{background:var(--card);border:1px solid #232838;border-radius:14px;padding:22px}
.card h3{font-size:1.05rem;margin-bottom:6px}
.card p{color:var(--muted);font-size:.95rem}
footer{text-align:center;color:var(--muted);font-size:.85rem;padding:28px 20px;border-top:1px solid #1d2130}
.doc h1{font-size:2rem;margin-bottom:4px}
.doc .meta{color:var(--muted);margin-bottom:32px}
.doc h2{font-size:1.2rem;margin:32px 0 10px;color:var(--accent2)}
.doc p{margin-bottom:10px}
.doc ul{margin:0 0 12px 22px}
.doc li{margin-bottom:4px}