:root{
  --bg:#0b1020; --card:#ffffff; --line:#e5e7eb; --text:#0f172a; --muted:#6b7280;
  --accent:#4f46e5; --accent2:#16a34a; --chip:#eef2ff; --shadow:0 10px 30px rgba(17,24,39,.08);
}
*{box-sizing:border-box} html,body{margin:0;padding:0;font-family:Inter,system-ui,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:#f6f8fb;color:var(--text)}
a{color:var(--accent);text-decoration:none} a:hover{text-decoration:underline}
.container{max-width:1200px;margin:0 auto;padding:24px}
.topbar{position:sticky;top:0;background:#fff;border-bottom:1px solid var(--line);z-index:10}
.nav{display:flex;gap:18px;align-items:center;padding:14px 0;flex-wrap:wrap}
.brand{font-weight:800;font-size:18px}
.nav a{font-weight:600}
.hero{background:linear-gradient(180deg,#eef2ff,transparent);padding:60px 0 40px;margin:0}
.hero h1{font-size:42px;line-height:1.05;margin:0 0 12px 0}
.hero p{font-size:18px;color:#22314f;max-width:760px;margin:0}
.cta{display:inline-block;background:var(--accent);color:#fff;padding:12px 18px;border-radius:12px;margin-top:18px;box-shadow:var(--shadow)}
.cta.secondary{background:#0f172a}
.section{padding:24px 0}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow)}
.card .p{padding:16px}
.input{padding:10px;border:1px solid var(--line);border-radius:10px;width:100%}
label small{color:var(--muted)}
.btn{display:inline-block;background:#111827;color:#fff;padding:10px 14px;border-radius:10px}
.btn.secondary{background:#e5e7eb;color:#111827}
.badge{font-size:12px;background:#d1fae5;color:#065f46;padding:4px 8px;border-radius:999px;margin-left:8px}
.small{font-size:12px;color:var(--muted)}
.table{width:100%;border-collapse:collapse}
.table th,.table td{padding:10px;border-bottom:1px solid #e5e7eb;text-align:left}
.notice{padding:12px;background:#fff8e1;border:1px solid #ffe8a1;border-radius:12px;color:#6b5500}
.footer{padding:40px 0;color:#5b667a;font-size:14px;border-top:1px solid var(--line);background:#fff}
pre.code{background:#0f172a;color:#e5e7eb;padding:12px;border-radius:12px;overflow:auto}
kbd{background:#e5e7eb;border-radius:6px;padding:2px 6px}