* { box-sizing: border-box; }
  html, body {
    margin: 0;
    padding: 0;
    background: #ffffff;
    color: #2a2a2a;
    font-family: "Helvetica Neue", Helvetica, Arial, "Segoe UI", sans-serif;
    line-height: 1.85;
    -webkit-font-smoothing: antialiased;
  }

  .sda-compare-shell {
    max-width: 860px;
    margin: 0 auto;
    padding: 60px 24px 100px;
  }

  .sda-compare-header {
    text-align: center;
    margin-bottom: 20px;
  }

  .sda-compare-title {
    font-size: clamp(30px, 4.8vw, 46px);
    font-weight: 800;
    color: #111111;
    margin: 0 0 16px;
    line-height: 1.25;
  }

  .sda-compare-subtitle {
    font-size: 18px;
    color: #666666;
    margin: 0 auto 20px;
    max-width: 680px;
  }

  .sda-compare-meta {
    font-size: 13px;
    color: #aaaaaa;
    margin-bottom: 48px;
  }

  .sda-compare-meta span {
    margin: 0 6px;
  }

  .sda-compare-toc {
    background: #f7f6f4;
    border-radius: 12px;
    padding: 28px 30px;
    margin-bottom: 56px;
  }

  .sda-compare-toc-title {
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #d9531e;
    margin: 0 0 16px;
  }

  .sda-compare-toc ol {
    margin: 0;
    padding-left: 20px;
    columns: 2;
    column-gap: 32px;
  }

  .sda-compare-toc li {
    font-size: 15px;
    margin-bottom: 10px;
    break-inside: avoid;
  }

  .sda-compare-toc a {
    color: #333333;
    text-decoration: none;
  }

  .sda-compare-toc a:hover {
    color: #d9531e;
  }

  .sda-compare-row {
    margin-bottom: 56px;
    scroll-margin-top: 20px;
  }

  .sda-compare-row:last-child {
    margin-bottom: 0;
  }

  .sda-compare-eyebrow {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: #d9531e;
    margin-bottom: 10px;
  }

  .sda-compare-h2 {
    font-size: clamp(24px, 3.2vw, 32px);
    font-weight: 800;
    color: #111111;
    margin: 0 0 18px;
    line-height: 1.3;
  }

  .sda-compare-h3 {
    font-size: clamp(17px, 2.2vw, 19px);
    font-weight: 700;
    color: #1a1a1a;
    margin: 26px 0 10px;
  }

  .sda-compare-text {
    font-size: clamp(17px, 2.1vw, 20px);
    color: #555555;
    margin: 0 0 16px;
  }

  .sda-compare-text:last-child {
    margin-bottom: 0;
  }

  .sda-compare-text strong {
    color: #d9531e;
    font-weight: 700;
  }

  .sda-compare-row ul,
  .sda-compare-row ol.sda-steps {
    list-style: none;
    margin: 0 0 16px;
    padding: 0;
  }

  .sda-compare-row ul li,
  .sda-compare-row ol.sda-steps li {
    position: relative;
    padding-left: 24px;
    font-size: clamp(16px, 2vw, 18px);
    color: #555555;
    margin-bottom: 10px;
  }

  .sda-compare-row ul li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: #d9531e;
    font-weight: 700;
  }

  .sda-checklist li::before {
    content: '✓';
    color: #2f8f4e;
    font-weight: 800;
  }

  ol.sda-steps {
    counter-reset: step-counter;
  }

  ol.sda-steps li {
    counter-increment: step-counter;
    padding-left: 30px;
  }

  ol.sda-steps li::before {
    content: counter(step-counter);
    position: absolute;
    left: 0;
    top: 0;
    color: #ffffff;
    background: #d9531e;
    font-weight: 700;
    font-size: 12px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
  }

  .sda-compare-callout {
    background: #fdf3ee;
    border-left: 4px solid #d9531e;
    border-radius: 4px;
    padding: 20px 24px;
    margin: 28px 0;
  }

  .sda-compare-callout-label {
    display: block;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #d9531e;
    margin-bottom: 8px;
  }

  .sda-compare-callout p {
    margin: 0;
    font-size: clamp(16px, 2vw, 18px);
    color: #3a3a3a;
    line-height: 1.75;
  }

  .sda-compare-2col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin: 24px 0;
  }

  .sda-compare-3col {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 16px;
    margin: 24px 0;
  }

  .sda-compare-card {
    background: #f7f6f4;
    border-radius: 10px;
    padding: 22px 22px;
  }

  .sda-compare-card.accent {
    background: #fdf3ee;
  }

  .sda-compare-card-title {
    font-size: 17px;
    font-weight: 800;
    color: #111111;
    margin: 0 0 12px;
  }

  .sda-compare-card.accent .sda-compare-card-title {
    color: #d9531e;
  }

  .sda-compare-card ul li {
    font-size: 15px;
  }

  .sda-badge {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: 999px;
    margin-bottom: 10px;
  }

  .sda-badge-green {
    background: #e6f4ea;
    color: #2f8f4e;
  }

  .sda-badge-red {
    background: #fbe4e1;
    color: #c0392b;
  }

  .sda-badge-orange {
    background: #fdf0e6;
    color: #d9531e;
  }

  .sda-myth {
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid #eeeeee;
  }

  .sda-myth:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
  }

  .sda-myth-badge {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #c0392b;
    background: #fbe4e1;
    padding: 4px 10px;
    border-radius: 999px;
    margin-bottom: 10px;
  }

  .sda-myth-claim {
    font-size: 17px;
    font-weight: 700;
    color: #111111;
    margin: 0 0 8px;
  }

  .sda-myth-reality {
    font-size: 15.5px;
    color: #555555;
    margin: 0;
  }

  .sda-myth-reality strong {
    color: #2f8f4e;
  }

  .sda-safety-box {
    border: 1px solid #ececec;
    border-radius: 12px;
    padding: 26px 26px;
    margin: 24px 0;
    background: #ffffff;
  }

  .sda-safety-box-title {
    font-size: 19px;
    font-weight: 800;
    color: #111111;
    margin: 0 0 14px;
  }

  .sda-safety-label {
    display: block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #999999;
    margin: 18px 0 8px;
  }

  .sda-compare-divider {
    border: none;
    border-top: 1px solid #e5e5e5;
    margin: 56px 0;
  }

  .sda-compare-footer {
    text-align: center;
    font-size: 13px;
    color: #aaaaaa;
    margin-top: 60px;
  }

  @media (max-width: 700px) {
    .sda-compare-2col,
    .sda-compare-3col {
      grid-template-columns: 1fr;
    }

    .sda-compare-toc ol {
      columns: 1;
    }
  }

  @media (max-width: 560px) {
    .sda-compare-shell {
      padding: 40px 18px 80px;
    }
  }