:root {
      --bg: #f5f9ff;
      --bg-2: #eef6ff;
      --paper: #ffffff;
      --line: #dbeafe;
      --line-strong: #bfdbfe;
      --text: #0f172a;
      --muted: #53657c;
      --blue: #2563eb;
      --blue-dark: #1d4ed8;
      --shadow: 0 18px 50px rgba(37, 99, 235, 0.12);
      --shadow-soft: 0 12px 34px rgba(15, 23, 42, 0.07);
      --radius: 22px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at 14% 8%, rgba(37, 99, 235, 0.13), transparent 28%),
        radial-gradient(circle at 85% 12%, rgba(14, 165, 233, 0.12), transparent 30%),
        linear-gradient(180deg, var(--bg-2) 0%, var(--bg) 38%, #ffffff 100%);
      line-height: 1.65;
      font-size: 17px;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    .page {
      width: min(1120px, calc(100% - 32px));
      margin: 38px auto 62px;
    }

    .top-message {
      text-align: center;
      margin: 0 auto 22px;
    }

    .top-message h1 {
      max-width: 980px;
      margin: 0 auto;
      font-size: clamp(34px, 4.9vw, 58px);
      line-height: 1.06;
      letter-spacing: -0.048em;
      font-weight: 850;
    }

    .top-message p {
      max-width: 850px;
      margin: 18px auto 0;
      color: var(--muted);
      font-size: clamp(18px, 2vw, 22px);
      line-height: 1.55;
    }

    .promo {
      width: min(980px, 100%);
      margin: 32px auto 22px;
      padding: 20px;
      border: 1px solid var(--line);
      border-radius: 28px;
      background: rgba(255, 255, 255, 0.94);
      box-shadow: var(--shadow);
    }

    .video-frame {
      position: relative;
      overflow: hidden;
      width: 100%;
      border: 1px solid var(--line-strong);
      border-radius: 20px;
      background: #102035;
      aspect-ratio: 16 / 9;
    }

    .video-frame iframe {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      border: 0;
    }

    .cta-row {
      display: flex;
      justify-content: center;
      margin: 20px auto 0;
    }

    .button {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 58px;
      padding: 15px 28px;
      border-radius: 999px;
      border: 1px solid transparent;
      background: var(--blue);
      color: #fff;
      font-weight: 850;
      font-size: clamp(17px, 1.8vw, 20px);
      line-height: 1.2;
      box-shadow: 0 12px 30px rgba(37, 99, 235, 0.24);
      cursor: default;
      user-select: none;
      text-align: center;
    }

    .section-title {
      margin: 58px 0 22px;
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 18px;
      border-bottom: 1px solid var(--line);
      padding-bottom: 14px;
    }

    .section-title h2 {
      margin: 0;
      font-size: clamp(28px, 3.2vw, 38px);
      line-height: 1.12;
      letter-spacing: -0.035em;
      font-weight: 850;
    }

    .section-title p {
      margin: 0;
      color: var(--muted);
      font-size: clamp(15px, 1.5vw, 17px);
      text-align: right;
      line-height: 1.5;
    }

    .grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 26px;
      align-items: start;
    }

    .card {
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: rgba(255, 255, 255, 0.96);
      box-shadow: var(--shadow-soft);
      overflow: hidden;
    }

    .card-inner {
      padding: 18px;
    }

    .card-actions {
      display: flex;
      justify-content: center;
      margin-top: 16px;
    }

    .placeholder {
      min-height: 100%;
      display: grid;
      place-items: center;
      border: 1px dashed var(--line-strong);
      border-radius: var(--radius);
      background: rgba(255, 255, 255, 0.70);
      color: var(--muted);
      text-align: center;
      padding: 42px 28px;
      box-shadow: 0 8px 24px rgba(15, 23, 42, 0.04);
      font-size: 17px;
      line-height: 1.6;
    }

    .placeholder strong {
      display: block;
      color: var(--text);
      margin-bottom: 10px;
      font-size: 22px;
      line-height: 1.25;
    }

    .note {
      width: min(850px, 100%);
      margin: 38px auto 0;
      padding: 24px 26px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: rgba(255, 255, 255, 0.92);
      color: var(--text);
      font-size: clamp(20px, 2.4vw, 26px);
      font-weight: 780;
      line-height: 1.42;
      text-align: center;
      box-shadow: var(--shadow-soft);
    }

    .footer {
      margin: 46px auto 0;
      text-align: center;
      color: var(--muted);
      font-size: 15px;
    }

    .footer-links {
      display: flex;
      justify-content: center;
      flex-wrap: wrap;
      gap: 16px;
      margin-top: 10px;
    }

    .top-button {
      position: fixed;
      right: 24px;
      bottom: 24px;
      z-index: 20;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-width: 84px;
      min-height: 52px;
      padding: 12px 16px;
      border-radius: 999px;
      border: 1px solid rgba(37, 99, 235, 0.20);
      background: #1e40af;
      color: #fff;
      font-size: 16px;
      font-weight: 900;
      box-shadow: 0 16px 34px rgba(37, 99, 235, 0.26);
    }

    .top-button:hover {
      background: var(--blue-dark);
    }

    @media (max-width: 760px) {
      .page {
        width: min(100% - 22px, 1120px);
        margin-top: 26px;
      }

      .top-message h1 {
        font-size: clamp(31px, 10vw, 46px);
      }

      .top-message p {
        font-size: 18px;
      }

      .promo {
        padding: 13px;
        border-radius: 20px;
      }

      .video-frame {
        border-radius: 16px;
      }

      .section-title {
        display: block;
      }

      .section-title p {
        margin-top: 8px;
        text-align: left;
      }

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

      .button {
        width: 100%;
        min-height: 58px;
      }

      .top-button {
        right: 14px;
        bottom: 14px;
        min-width: 76px;
        min-height: 48px;
      }
    }

.button:hover {
  background: var(--blue-dark);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--blue-dark);
  text-decoration: underline;
}