:root{
  --bg:#0b0c10;
  --panel:#111318;
  --text:#e9edf1;
  --muted:#a8b3bd;
  --brand:#7ac4ff;
  --brand-2:#00d4a6;
  --border:#1b1f2a;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Inter,Arial}
a{color:var(--brand);text-decoration:none}
a:hover{opacity:.9}
.container{max-width:1080px;margin:0 auto;padding:24px}
.nav{position:sticky;top:0;background:rgba(11,12,16,.7);backdrop-filter:blur(6px);border-bottom:1px solid var(--border);z-index:50}
.nav-inner{display:flex;align-items:center;gap:16px;justify-content:space-between;padding:14px 0}
.brand{display:flex;align-items:center;gap:10px}
.logo{width:28px;height:28px;border-radius:8px;background:linear-gradient(135deg,var(--brand),var(--brand-2));box-shadow:0 0 0 2px #0003}
.brand h1{font-size:18px;margin:0}
.navlinks{display:flex;gap:16px;flex-wrap:wrap}
.btn{display:inline-block;padding:10px 14px;border:1px solid var(--border);border-radius:12px;background:linear-gradient(180deg,#151822,#0f121a);box-shadow:inset 0 1px 0 #ffffff0d}
.hero{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:center;margin-top:22px}
.hero h2{font-size:36px;margin:0 0 8px}
.hero p{color:var(--muted);margin:0 0 16px}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:26px 0}
.card{background:var(--panel);border:1px solid var(--border);border-radius:18px;padding:18px}
.card h3{margin:0 0 6px}
.card p{color:var(--muted);margin:0 0 12px}
.footer{border-top:1px solid var(--border);color:var(--muted);padding:18px 0;margin-top:32px}
.badge{font-size:12px;color:#9bd6ff;border:1px solid #183a52;padding:2px 8px;border-radius:999px;background:#0f2433}
.kicker{letter-spacing:.24em;color:#8fd; font-size:12px; text-transform:uppercase}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.article{max-width:820px;margin:0 auto}
.article h1{font-size:34px;margin:10px 0 8px}
.article .meta{color:var(--muted);font-size:14px;margin-bottom:18px}
.toc{background:var(--panel);border:1px dashed var(--border);padding:12px;border-radius:12px;margin:18px 0}
.code{font-family:ui-monospace,Consolas,Menlo,monospace;background:#0e1117;border:1px solid #1f2430;border-radius:12px;padding:12px;color:#bfe1ff;overflow:auto}
.notice{border-left:4px solid var(--brand);background:#0c141c;padding:12px;border-radius:10px}
.table{width:100%;border-collapse:collapse;border:1px solid var(--border)}
.table th,.table td{border:1px solid var(--border);padding:8px;text-align:left}
@media (max-width:900px){
  .hero{grid-template-columns:1fr}
  .cards{grid-template-columns:1fr}
  .navlinks{display:none}
}