:root {
      --bg: #f5f7fa;
      --card: #ffffff;
      --text: #152033;
      --muted: #5f6b7a;
      --line: #e2e8f0;
      --accent: #d96a00;
      --accent-soft: #fff3e8;
      --shadow: 0 18px 45px rgba(15, 23, 42, 0.08);
      --radius: 24px;
      --max-width: 1140px;
    }

    * {
      box-sizing: border-box;
    }

    .page-preview {
      padding: 56px 20px;
    }

    .intro-section {
      background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 42px;
      box-shadow: var(--shadow);
    }

    .intro-content {
      display: grid;
      grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr);
      gap: 38px;
      align-items: start;
      width: 100%;
      max-width: none;
    }

    .intro-main,
    .intro-side {
      min-width: 0;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 14px;
      padding: 7px 12px;
      border-radius: 999px;
      background: var(--accent-soft);
      color: var(--accent);
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 0.04em;
      text-transform: uppercase;
    }

    .intro-main h1 {
      margin: 0 0 18px;
      font-size: clamp(32px, 4vw, 52px);
      line-height: 1.05;
      letter-spacing: -0.04em;
    }

    .intro-lead {
      margin: 0 0 18px;
      font-size: 21px;
      line-height: 1.45;
      color: #263449;
      font-weight: 600;
    }

    .intro-main p {
      margin: 0 0 18px;
      color: var(--muted);
      font-size: 17px;
    }

    .intro-side {
      display: grid;
      grid-template-rows: repeat(3, 1fr);
      gap: 16px;
      min-height: 100%;
    }

    .intro-side-box {
      display: flex;
      flex-direction: column;
      justify-content: center;
      background: #ffffff;
      border: 1px solid var(--line);
      border-radius: 20px;
      padding: 24px;
      box-shadow: 0 14px 35px rgba(15, 23, 42, 0.07);
    }

    .intro-side-box h3 {
      margin: 0 0 10px;
      font-size: 20px;
      line-height: 1.2;
      letter-spacing: -0.02em;
      color: var(--accent);
    }

    .intro-side-box p {
      margin: 0;
      font-size: 16px;
    }

    .intro-benefits {
      display: grid;
      gap: 10px;
      margin: 22px 0 24px;
      padding: 0;
      list-style: none;
    }

    .intro-benefits li {
      position: relative;
      padding-left: 30px;
      color: #263449;
      font-weight: 700;
    }

    .intro-benefits li::before {
      content: "✓";
      position: absolute;
      left: 0;
      top: 0;
      width: 21px;
      height: 21px;
      border-radius: 50%;
      background: var(--accent);
      color: #ffffff;
      font-size: 14px;
      line-height: 21px;
      text-align: center;
      font-weight: 700;
    }

    .intro-main h2 {
      margin: 0;
      padding-top: 20px;
      border-top: 1px solid var(--line);
      font-size: 22px;
      line-height: 1.25;
      letter-spacing: -0.02em;
    }

    @media (max-width: 768px) {
      .page-preview {
        padding: 28px 14px;
      }

      .intro-section {
        padding: 26px;
        border-radius: 18px;
      }

      .intro-content {
        grid-template-columns: 1fr;
        gap: 24px;
      }

      .intro-side {
        padding: 22px;
      }
    }