:root{
    --bg:#0b1020; --bg2:#0f1630; --card:#151d3a; --card2:#1a2447;
    --ink:#eef2ff; --muted:#9aa6cc; --line:#26305a;
    --accent:#6c8cff; --accent2:#37e2c4; --accent-ink:#0b1020;
    --radius:18px; --maxw:860px;
    --grad:linear-gradient(120deg,#6c8cff 0%,#37e2c4 100%);
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{
    font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
    background:radial-gradient(1200px 700px at 80% -10%,#1b2652 0%,transparent 60%),
               radial-gradient(900px 600px at -10% 10%,#132046 0%,transparent 55%),
               var(--bg);
    color:var(--ink); line-height:1.6; -webkit-font-smoothing:antialiased;
  }
  a{color:inherit;text-decoration:none}
  .wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
  .btn{
    display:inline-flex;align-items:center;gap:.5em;justify-content:center;
    background:var(--grad);color:var(--accent-ink);font-weight:700;
    padding:14px 24px;border-radius:14px;border:0;cursor:pointer;
    font-size:16px;transition:transform .15s ease,box-shadow .15s ease;
    box-shadow:0 10px 30px -8px rgba(108,140,255,.55);
  }
  .btn:hover{transform:translateY(-2px);box-shadow:0 16px 40px -8px rgba(55,226,196,.5)}
  .btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--line);box-shadow:none}
  .btn.ghost:hover{border-color:var(--accent)}
  .eyebrow{color:var(--accent2);font-weight:700;letter-spacing:.08em;text-transform:uppercase;font-size:13px}
  h1,h2,h3{line-height:1.15;letter-spacing:-.02em}
  h1{font-size:clamp(30px,5vw,46px);font-weight:800;margin:14px 0 18px}
  h2{font-size:clamp(23px,3.4vw,32px);font-weight:800;margin:38px 0 14px}
  h3{font-size:19px;font-weight:700;margin:22px 0 8px}
  p{margin:0 0 14px}
  article p,article li{color:#c9d2f0}
  .muted{color:var(--muted)}
  .grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
  article ul{margin:0 0 16px;padding-left:22px}
  article li{margin-bottom:7px}
  article a.inlink{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
  article a.inlink:hover{color:var(--accent2)}
  header{position:sticky;top:0;z-index:50;backdrop-filter:blur(12px);
    background:rgba(11,16,32,.72);border-bottom:1px solid var(--line)}
  .nav{display:flex;align-items:center;justify-content:space-between;height:64px}
  .logo{font-weight:900;font-size:22px;display:flex;align-items:center;gap:10px}
  .logo .mark{width:28px;height:28px;flex:0 0 auto;filter:drop-shadow(0 0 9px rgba(55,226,196,.5))}
  .nav .btn{padding:11px 18px;font-size:14px}
  main{padding:44px 0 10px}
  .lead{font-size:19px;color:#dbe2ff;margin-bottom:8px}
  .crumbs{font-size:13px;color:var(--muted);margin-bottom:6px}
  .crumbs a:hover{color:var(--ink)}
  .cta-final{background:linear-gradient(180deg,var(--card),var(--bg2));
    border:1px solid var(--line);border-radius:22px;padding:34px;margin:44px 0 10px;text-align:center}
  .cta-final h2{margin:0 0 10px}
  .cta-final p{color:var(--muted);max-width:560px;margin:0 auto 20px}
  .related{border-top:1px solid var(--line);margin-top:40px;padding-top:24px}
  .related h2{font-size:20px;margin:0 0 12px}
  .related ul{list-style:none;padding:0}
  .related li{margin-bottom:9px}
  .related a{color:var(--accent);text-underline-offset:3px}
  .related a:hover{text-decoration:underline;color:var(--accent2)}
  .faq{margin-top:14px}
  .faq details{border:1px solid var(--line);border-radius:14px;margin-bottom:12px;background:var(--card);overflow:hidden}
  .faq summary{cursor:pointer;padding:18px 20px;font-weight:700;font-size:17px;list-style:none;
    display:flex;justify-content:space-between;align-items:center;gap:16px}
  .faq summary::-webkit-details-marker{display:none}
  .faq summary::after{content:"+";color:var(--accent2);font-size:24px;font-weight:400;flex:0 0 auto}
  .faq details[open] summary::after{content:"\2212"}
  .faq .ans{padding:0 20px 18px;color:var(--muted);font-size:15px}
  footer{border-top:1px solid var(--line);padding:36px 0;color:var(--muted);font-size:14px;margin-top:40px}
  .foot-grid{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
  footer a:hover{color:var(--ink)}
  @media(max-width:860px){main{padding:32px 0 10px}}