:root{
      --bg:#f4f9ff;
      --panel:#ffffff;
      --soft:#eaf4ff;
      --line:#d8e7f7;
      --text:#12304d;
      --muted:#607a96;
      --brand:#1f6feb;
      --brand-dark:#114c9c;
      --accent:#60b7ff;
      --shadow:0 16px 40px rgba(17,76,156,.10);
      --radius:22px;
      --max:1180px;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:'Inter',sans-serif;
      background:linear-gradient(180deg,#f7fbff 0%,#eef6ff 100%);
      color:var(--text);
      line-height:1.75;
    }

    img{max-width:100%;display:block}
    a{color:var(--brand);text-decoration:none}
    a:hover{text-decoration:underline}

    .container{
      width:min(var(--max), calc(100% - 32px));
      margin:0 auto;
    }

    .hero{
      padding:72px 0 36px;
      background:
        radial-gradient(circle at top right, rgba(96,183,255,.25), transparent 28%),
        linear-gradient(135deg,#f7fbff 0%,#eaf4ff 100%);
      border-bottom:1px solid var(--line);
    }

    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 14px;
      background:var(--soft);
      color:var(--brand-dark);
      border:1px solid #cfe3fb;
      border-radius:999px;
      font-size:13px;
      font-weight:700;
      letter-spacing:.04em;
      text-transform:uppercase;
    }

    h1{
      margin:18px 0 18px;
      font-size:clamp(30px,4vw,54px);
      line-height:1.1;
      letter-spacing:-.03em;
      max-width:980px;
    }

    .hero p.lead{
      max-width:880px;
      margin:0;
      color:var(--muted);
      font-size:18px;
    }

    .meta{
      display:flex;
      flex-wrap:wrap;
      gap:14px 22px;
      margin-top:24px;
      color:var(--muted);
      font-size:14px;
    }

    .layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 320px;
      gap:28px;
      padding:40px 0 72px;
    }

    .content, .sidebar-card, .compare-box, .faq-item, .cta, .note{
      background:var(--panel);
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
    }

    .content{
      padding:34px;
    }

    .content h2{
      font-size:30px;
      line-height:1.2;
      margin:42px 0 14px;
      letter-spacing:-.02em;
    }

    .content h3{
      font-size:22px;
      margin:28px 0 10px;
      line-height:1.3;
    }

    .content p{
      margin:0 0 16px;
      color:#23425f;
    }

    .content ul{
      margin:0 0 20px 0;
      padding-left:20px;
    }

    .content li{
      margin:0 0 10px;
      color:#23425f;
    }

    .highlight{
      color:var(--brand-dark);
      font-weight:700;
    }

    .compare-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:18px;
      margin:22px 0 10px;
    }

    .compare-box{
      padding:22px;
    }

    .compare-box h3{
      margin-top:0;
      font-size:20px;
    }

    .tag{
      display:inline-block;
      margin-bottom:12px;
      padding:6px 12px;
      border-radius:999px;
      background:var(--soft);
      color:var(--brand-dark);
      font-size:12px;
      font-weight:800;
      text-transform:uppercase;
      letter-spacing:.05em;
    }

    .table-wrap{
      overflow-x:auto;
      margin:22px 0;
      border:1px solid var(--line);
      border-radius:18px;
      background:#fff;
    }

    table{
      width:100%;
      border-collapse:collapse;
      min-width:720px;
    }

    th, td{
      padding:16px 18px;
      border-bottom:1px solid var(--line);
      text-align:left;
      vertical-align:top;
      font-size:15px;
    }

    th{
      background:#f2f8ff;
      color:var(--brand-dark);
      font-size:14px;
      text-transform:uppercase;
      letter-spacing:.04em;
    }

    tr:last-child td{border-bottom:none}

    .note{
      padding:20px 22px;
      margin:26px 0 0;
      background:linear-gradient(180deg,#fafdff 0%,#f3f9ff 100%);
    }

    .cta{
      margin-top:34px;
      padding:26px;
      background:linear-gradient(135deg,#f4faff 0%,#e9f3ff 100%);
    }

    .cta h3{
      margin-top:0;
      font-size:24px;
    }

    .cta-btn{
      display:inline-block;
      margin-top:8px;
      padding:14px 20px;
      background:linear-gradient(135deg,var(--brand) 0%, #3d8cff 100%);
      color:#fff;
      border-radius:14px;
      font-weight:700;
      text-decoration:none;
      box-shadow:0 14px 30px rgba(31,111,235,.22);
    }

    .sidebar{
      display:flex;
      flex-direction:column;
      gap:20px;
      position:sticky;
      top:20px;
      align-self:start;
    }

    .sidebar-card{
      padding:22px;
    }

    .sidebar-card h3{
      margin:0 0 12px;
      font-size:18px;
    }

    .sidebar-card ul{
      margin:0;
      padding-left:18px;
    }

    .sidebar-card li{
      margin-bottom:10px;
      color:#23425f;
      font-size:15px;
    }

    .toc a{
      display:block;
      padding:8px 0;
      color:#23425f;
      border-bottom:1px dashed #d9e6f4;
      font-size:14px;
    }

    .toc a:last-child{border-bottom:none}

    .faq{
      margin-top:14px;
      display:grid;
      gap:16px;
    }

    .faq-item{
      padding:22px;
    }

    .faq-item h3{
      margin:0 0 10px;
      font-size:18px;
    }

    .footer{
      padding:28px 0 56px;
      color:var(--muted);
      font-size:14px;
    }

    @media (max-width: 991px){
      .layout{
        grid-template-columns:1fr;
      }

      .sidebar{
        position:static;
      }
    }

    @media (max-width: 767px){
      .hero{
        padding:54px 0 28px;
      }

      .content{
        padding:24px 18px;
      }

      .compare-grid{
        grid-template-columns:1fr;
      }

      h1{
        font-size:34px;
      }

      .hero p.lead{
        font-size:16px;
      }

      .content h2{
        font-size:26px;
      }

      .content h3{
        font-size:20px;
      }
    }