:root{
  --bg:#ffffff; --text:#0f172a; --muted:#475569; --soft:#f8fafc;
  --border:#e2e8f0; --brand:#0b57d0; --brand2:#0ea5e9;
  --radius:18px; --shadow:0 10px 30px rgba(2,6,23,.06);
  --max:1140px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif;background:var(--bg);color:var(--text);line-height:1.65}
a{color:var(--brand);text-decoration:none} a:hover{text-decoration:underline}
.container{max-width:var(--max);margin:0 auto;padding:22px}
.topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:saturate(1.2) blur(10px);border-bottom:1px solid var(--border)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:14px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.2px}
.pill{font-size:12px;color:var(--muted);border:1px solid var(--border);padding:4px 10px;border-radius:999px;background:#fff}
.nav{display:flex;align-items:center;gap:14px;flex-wrap:wrap;font-size:14px}
.nav a{color:var(--text);opacity:.85} .nav a:hover{opacity:1;text-decoration:none}
.hero{
  background:radial-gradient(1000px 600px at 10% -10%, rgba(14,165,233,.22), transparent 55%),
             radial-gradient(900px 600px at 90% 0%, rgba(11,87,208,.18), transparent 60%),
             linear-gradient(180deg, #ffffff, #f7fbff);
  border-bottom:1px solid var(--border);
  padding:38px 0 22px;
}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:18px;align-items:start}
h1{margin:0 0 10px;font-size:42px;line-height:1.15}
.lead{margin:0;color:var(--muted);max-width:75ch}
.cta-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 16px;border-radius:14px;border:1px solid rgba(2,6,23,.08);font-weight:750;cursor:pointer;user-select:none}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff}
.btn-primary:hover{text-decoration:none;filter:brightness(.98)}
.btn-ghost{background:#fff;color:var(--text)}
.btn-ghost:hover{text-decoration:none;background:var(--soft)}
.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}
.mini{padding:14px}
.section{padding:26px 0}
.section h2{margin:0 0 10px;font-size:28px}
.sub{color:var(--muted);margin:0 0 14px;max-width:85ch}
.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:14px}
.feature{grid-column:span 4;padding:14px}
.feature h3{margin:0 0 6px;font-size:16px}
.feature p{margin:0;color:var(--muted);font-size:13.5px}
.badge{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--border);background:var(--soft);padding:6px 10px;border-radius:999px;font-size:12px;color:var(--muted)}
.badge i{width:8px;height:8px;border-radius:99px;background:#16a34a;display:inline-block}
.split{display:grid;grid-template-columns:1fr 420px;gap:16px;align-items:start}
.content{padding:18px}
.aside{padding:16px;position:sticky;top:92px}
.aside h3{margin:0 0 10px;font-size:15px}
.aside .row{display:flex;justify-content:space-between;gap:10px;padding:8px 0;border-bottom:1px dashed var(--border);font-size:13px}
.muted{color:var(--muted)}
.list{margin:10px 0 0;padding-left:18px}
.list li{margin:6px 0}
.toc{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.toc a{font-size:12px;color:var(--text);opacity:.85;border:1px solid var(--border);background:#fff;padding:6px 10px;border-radius:999px}
.toc a:hover{opacity:1;text-decoration:none;background:var(--soft)}
table{width:100%;border-collapse:separate;border-spacing:0;overflow:hidden;border-radius:14px;border:1px solid var(--border)}
th,td{padding:12px;border-bottom:1px solid var(--border);vertical-align:top}
th{background:var(--soft);text-align:left;font-size:13px}
td{font-size:13.5px;color:var(--text)}
tr:last-child td{border-bottom:0}
.note{font-size:12px;color:var(--muted)}
.callout{border:1px solid rgba(14,165,233,.25);background:linear-gradient(180deg, rgba(14,165,233,.10), rgba(11,87,208,.06));padding:14px;border-radius:var(--radius)}
.faq details{border:1px solid var(--border);border-radius:14px;padding:12px 14px;background:#fff;margin:10px 0}
.faq summary{font-weight:750;cursor:pointer}
.faq p{color:var(--muted);margin:10px 0 0}
.footer{border-top:1px solid var(--border);padding:24px 0;background:#fff}
.cols{display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:14px}
.cols h4{margin:0 0 8px;font-size:14px}
.cols a{display:block;padding:4px 0;color:var(--muted);font-size:13px}
.cols a:hover{color:var(--text);text-decoration:none}
.legal{margin-top:12px;font-size:12px;color:var(--muted)}
.input{width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:14px;background:#fff;font-size:14px}
.flex{display:flex;gap:10px;flex-wrap:wrap}
@media (max-width:980px){
  .hero-grid{grid-template-columns:1fr}
  .split{grid-template-columns:1fr}
  .aside{position:static}
  .feature{grid-column:span 6}
  h1{font-size:34px}
  .cols{grid-template-columns:1fr}
  .nav{display:none}
}
@media (max-width:640px){
  .feature{grid-column:span 12}
}