:root{
      --brand:#7b3fe4; /* violet */
      --brand-2:#0ea5e9; /* blue */
      --ink:#0f1a2a;
      --muted:#6b7280;
      --bg:#ffffff;
      --soft:#f6f8fc;
      --card:#ffffff;
      --line:#e6e9f0;
      --radius:18px;
      --shadow:0 10px 30px rgba(15,26,42,.08);
    }
    *{box-sizing:border-box}
    html,body{margin:0;padding:0;background:var(--bg);color:var(--ink);font-family:Inter,system-ui,Segoe UI,Arial,sans-serif;line-height:1.6}
    img{max-width:100%;height:auto;border-radius:12px}
    a{color:var(--brand);text-decoration:none}
    a:hover{opacity:.9}
    .container{max-width:1100px;margin:0 auto;padding:24px}
    header.hero{background:linear-gradient(135deg, var(--brand) 0%, var(--brand-2) 100%);color:#fff;padding:56px 0;position:relative;overflow:hidden}
    .hero .container{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center}
    .badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.35);padding:6px 12px;border-radius:999px;font-size:12px;backdrop-filter:blur(6px)}
    .hero h1{margin:14px 0 10px;font-size:38px;letter-spacing:.2px}
    .hero p{font-size:16px;opacity:.95}
    .cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:18px}
    .btn{display:inline-flex;align-items:center;gap:10px;padding:12px 18px;border-radius:999px;font-weight:600;border:0;cursor:pointer}
    .btn-primary{background:linear-gradient(90deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 8px 20px rgba(14,165,233,.25)}
    .btn-ghost{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.4)}
    .hero-card{background:#ffffff;border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}

    .toc{background:var(--soft);border:1px solid var(--line);border-radius:var(--radius);padding:16px}
    .toc h3{margin:0 0 8px}
    .toc a{display:block;padding:6px 0;color:#334155}

    .grid{display:grid;gap:18px}
    .grid-3{grid-template-columns:repeat(3,1fr)}
    .grid-2{grid-template-columns:repeat(2,1fr)}

    section{padding:40px 0}
    h2{font-size:26px;margin:0 0 12px}
    h3{font-size:18px;margin:10px 0}
    p{margin:0 0 10px;color:#111827}

    .card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}
    .chip{display:inline-block;background:#eef2ff;color:#4f46e5;border:1px solid #c7d2fe;padding:4px 10px;border-radius:999px;font-size:12px;margin-right:6px}
    .list{list-style:none;padding:0;margin:0}
    .list li{display:flex;gap:10px;align-items:flex-start;padding:8px 0}
    .list li::before{content:"✓";color:#10b981;margin-top:2px}

    .faq details{border:1px solid var(--line);border-radius:12px;padding:14px;background:#fff}
    .faq details+details{margin-top:10px}
    .faq summary{cursor:pointer;font-weight:600}

    .sticky-cta{position:fixed;left:0;right:0;bottom:14px;display:none;justify-content:center;z-index:50}
    .sticky-cta .btn{box-shadow:0 10px 28px rgba(14,165,233,.35)}

    footer{padding:30px 0;border-top:1px solid var(--line);color:var(--muted)}

    @media(max-width:980px){
      .hero .container{grid-template-columns:1fr}
      .grid-3{grid-template-columns:1fr 1fr}
    }
    @media(max-width:680px){
      .grid-3{grid-template-columns:1fr}
      .grid-2{grid-template-columns:1fr}
      .hero h1{font-size:30px}
      .sticky-cta{display:flex}
    }