:root{
  --bg:#f6f8ff;
  --surface:#ffffff;
  --surface-2:#f1f4ff;
  --text:#18243d;
  --muted:#53647f;
  --primary:#3f55c9;
  --primary-dark:#3043aa;
  --border:#dfe5f3;
  --shadow:0 18px 50px rgba(30,50,100,.08);
  --radius:18px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.7;
}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
.container{width:min(1120px,calc(100% - 40px));margin:auto}
.site-header{
  position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);
  backdrop-filter:blur(14px);border-bottom:1px solid var(--border)
}
.nav{height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{font-size:25px;font-weight:800;letter-spacing:-.5px;color:var(--text)}
.nav-links{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.nav-links a{padding:10px 16px;border-radius:12px;color:#31415f;font-weight:600}
.nav-links a:hover,.nav-links a.active{background:#eef1ff;color:var(--primary);text-decoration:none}
.hero{padding:105px 0 105px;background:linear-gradient(135deg,#eef1ff 0%,#f9faff 62%,#fff 100%)}
.eyebrow{font-size:13px;font-weight:800;letter-spacing:2px;color:#4a60d3;text-transform:uppercase}
h1{font-size:clamp(48px,7vw,78px);line-height:1.04;letter-spacing:-2.8px;margin:18px 0 22px}
h2{font-size:38px;line-height:1.15;letter-spacing:-1px;margin:0 0 18px}
h3{font-size:22px;margin:28px 0 10px}
.lead{font-size:20px;color:var(--muted);max-width:800px}
.btns{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 22px;border-radius:12px;border:1px solid #cbd4ee;font-weight:750}
.btn.primary{background:var(--primary);color:white;border-color:var(--primary)}
.btn.primary:hover{background:var(--primary-dark);text-decoration:none}
.btn.secondary{background:white;color:var(--primary)}
section{padding:82px 0}
.section-alt{background:#fbfcff}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.card p{color:var(--muted)}
.icon{width:44px;height:44px;border-radius:12px;background:#eef1ff;color:var(--primary);display:grid;place-items:center;font-weight:900;margin-bottom:18px}
.list{padding-left:20px}
.list li{margin:8px 0}
.notice{border-left:4px solid var(--primary);background:#eef1ff;padding:18px 20px;border-radius:10px;color:#34446b}
.table-wrap{overflow:auto;border:1px solid var(--border);border-radius:16px;background:white}
table{width:100%;border-collapse:collapse;min-width:760px}
th,td{text-align:left;padding:16px;border-bottom:1px solid var(--border);vertical-align:top}
th{background:#f4f6ff;color:#27385d}
tr:last-child td{border-bottom:0}
.small{font-size:14px;color:var(--muted)}
.footer{padding:40px 0;background:#17223b;color:#dfe5f3}
.footer a{color:#dfe5f3}
.footer-inner{display:flex;justify-content:space-between;gap:20px;align-items:center;flex-wrap:wrap}
.page-hero{padding:70px 0;background:linear-gradient(135deg,#eef1ff,#fff)}
.prose{max-width:920px}
.prose p,.prose li{color:#42536f}
.prose strong{color:var(--text)}
.toc{display:flex;gap:8px;flex-wrap:wrap;margin:25px 0 40px}
.toc a{background:white;border:1px solid var(--border);padding:8px 12px;border-radius:9px;font-size:14px;font-weight:650}
.kicker{font-size:14px;font-weight:800;color:var(--primary);text-transform:uppercase;letter-spacing:1.3px}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.checklist{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:20px}
.check{background:white;border:1px solid var(--border);border-radius:12px;padding:14px}
.badge{display:inline-block;background:#eef1ff;color:#344bb8;border-radius:999px;padding:5px 9px;font-size:12px;font-weight:800}
@media(max-width:800px){
  .nav{height:auto;padding:16px 0;align-items:flex-start;flex-direction:column}
  .nav-links{width:100%}
  .hero{padding:72px 0}
  section{padding:58px 0}
  .grid,.two-col{grid-template-columns:1fr}
  .checklist{grid-template-columns:1fr}
  h1{font-size:48px}
}