.mdf-heat-article,
  .mdf-heat-article * {
    box-sizing: border-box;
  }

  .mdf-heat-article {
    --mdf-navy: #08243b;
    --mdf-blue: #0f4c6e;
    --mdf-cyan: #18a7b8;
    --mdf-teak: #a96936;
    --mdf-ink: #1f2933;
    --mdf-muted: #5d6a75;
    --mdf-line: #dce5ea;
    --mdf-soft: #f3f7f9;
    max-width: 920px;
    margin: 0 auto;
    color: var(--mdf-ink);
    font-family: Georgia, "Times New Roman", serif;
    font-size: 17px;
    line-height: 1.75;
  }

  .mdf-heat-article h1,
  .mdf-heat-article h2,
  .mdf-heat-article h3,
  .mdf-heat-article .mdf-eyebrow,
  .mdf-heat-article .mdf-toc,
  .mdf-heat-article .mdf-summary,
  .mdf-heat-article .mdf-faq,
  .mdf-heat-article .mdf-cta {
    font-family: "Trebuchet MS", Arial, sans-serif;
  }

  .mdf-heat-article h1 {
    margin: 24px 0 16px;
    color: var(--mdf-navy);
    font-size: clamp(32px, 5vw, 52px);
    line-height: 1.12;
    letter-spacing: -0.025em;
  }

  .mdf-heat-article h2 {
    margin: 56px 0 18px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--mdf-line);
    color: var(--mdf-navy);
    font-size: clamp(25px, 3.5vw, 34px);
    line-height: 1.25;
  }

  .mdf-heat-article h3 {
    margin: 28px 0 8px;
    color: var(--mdf-blue);
    font-size: 21px;
    line-height: 1.35;
  }

  .mdf-heat-article p {
    margin: 0 0 18px;
  }

  .mdf-heat-article ul,
  .mdf-heat-article ol {
    margin: 10px 0 24px;
    padding-left: 25px;
  }

  .mdf-heat-article li {
    margin: 7px 0;
    padding-left: 5px;
  }

  .mdf-heat-article a {
    color: var(--mdf-blue);
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
  }

  .mdf-heat-article .mdf-eyebrow {
    margin: 0 0 6px;
    color: var(--mdf-cyan);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
  }

  .mdf-heat-article .mdf-lead {
    margin-bottom: 30px;
    color: #43515c;
    font-size: 20px;
    line-height: 1.65;
  }

  .mdf-heat-article .mdf-summary {
    margin: 28px 0;
    padding: 22px 24px;
    border-left: 5px solid var(--mdf-cyan);
    border-radius: 0 14px 14px 0;
    background: var(--mdf-soft);
  }

  .mdf-heat-article .mdf-summary p:last-child {
    margin-bottom: 0;
  }

  .mdf-heat-article .mdf-toc {
    margin: 30px 0 42px;
    padding: 24px;
    border: 1px solid var(--mdf-line);
    border-radius: 16px;
    background: #fff;
    box-shadow: 0 10px 28px rgba(8, 36, 59, 0.07);
  }

  .mdf-heat-article .mdf-toc strong {
    display: block;
    margin-bottom: 8px;
    color: var(--mdf-navy);
    font-size: 18px;
  }

  .mdf-heat-article .mdf-toc ol {
    margin-bottom: 0;
  }

  .mdf-heat-article .mdf-note {
    margin: 26px 0;
    padding: 20px 22px;
    border: 1px solid #efd5bd;
    border-radius: 14px;
    background: #fff8f1;
  }

  .mdf-heat-article .mdf-note strong {
    color: #81451f;
  }

  .mdf-heat-article .mdf-principles {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    margin: 24px 0 34px;
  }

  .mdf-heat-article .mdf-card {
    padding: 22px;
    border: 1px solid var(--mdf-line);
    border-radius: 16px;
    background: #fff;
  }

  .mdf-heat-article .mdf-card h3 {
    margin-top: 0;
  }

  .mdf-heat-article .mdf-card ul {
    margin-bottom: 0;
  }

  .mdf-heat-article .mdf-cta {
    margin: 48px 0;
    padding: 34px;
    overflow: hidden;
    border-radius: 20px;
    color: #fff;
    background:
      radial-gradient(circle at 90% 10%, rgba(24, 167, 184, 0.34), transparent 36%),
      linear-gradient(135deg, #071f34, #0f4c6e);
  }

  .mdf-heat-article .mdf-cta h2 {
    margin: 0 0 12px;
    padding: 0;
    border: 0;
    color: #fff;
  }

  .mdf-heat-article .mdf-cta p {
    color: #e1f1f5;
  }

  .mdf-heat-article .mdf-button {
    display: inline-block;
    margin-top: 6px;
    padding: 13px 20px;
    border-radius: 999px;
    color: var(--mdf-navy);
    background: #fff;
    font-weight: 700;
    text-decoration: none;
  }

  .mdf-heat-article .mdf-faq {
    margin: 28px 0 50px;
  }

  .mdf-heat-article .mdf-faq-item {
    padding: 20px 0;
    border-bottom: 1px solid var(--mdf-line);
  }

  .mdf-heat-article .mdf-faq-item:first-child {
    border-top: 1px solid var(--mdf-line);
  }

  .mdf-heat-article .mdf-faq-item h3 {
    margin: 0 0 7px;
    color: var(--mdf-navy);
    font-size: 18px;
  }

  .mdf-heat-article .mdf-faq-item p {
    margin: 0;
    color: var(--mdf-muted);
  }

  @media (max-width: 680px) {
    .mdf-heat-article {
      font-size: 16px;
      line-height: 1.68;
    }

    .mdf-heat-article .mdf-principles {
      grid-template-columns: 1fr;
    }

    .mdf-heat-article .mdf-summary,
    .mdf-heat-article .mdf-toc,
    .mdf-heat-article .mdf-card,
    .mdf-heat-article .mdf-cta {
      padding: 20px;
    }

    .mdf-heat-article h2 {
      margin-top: 42px;
    }
  }