:root {
      --tps-green: #0d7a43;
      --tps-dark: #17332c;
      --tps-text: #24312e;
      --tps-muted: #5d6d68;
      --tps-line: #d9e3df;
      --tps-soft: #f4f8f6;
      --tps-callout: #eaf5ef;
    }
    body {
      margin: 0;
      font-family: Arial, Helvetica, sans-serif;
      color: var(--tps-text);
      background: #ffffff;
      line-height: 1.65;
    }
    .tps-article {
      max-width: 1080px;
      margin: 0 auto;
      padding: 32px 20px 56px;
    }
    .intro-box, .toc, .callout, .rfq-box {
      border: 1px solid var(--tps-line);
      border-radius: 18px;
      background: var(--tps-soft);
      padding: 22px 24px;
      margin: 24px 0;
    }
    .eyebrow {
      color: var(--tps-green);
      font-weight: 700;
      letter-spacing: .04em;
      text-transform: uppercase;
      font-size: 14px;
    }
    h2 {
      margin-top: 44px;
      color: var(--tps-dark);
      font-size: 30px;
      line-height: 1.25;
    }
    h3 {
      margin-top: 28px;
      color: #21463d;
      font-size: 22px;
      line-height: 1.3;
    }
    a {
      color: #0a6f3b;
      text-decoration: none;
      font-weight: 600;
    }
    a:hover { text-decoration: underline; }
    .toc ol {
      columns: 2;
      padding-left: 22px;
      margin: 8px 0 0;
    }
    .toc li { margin-bottom: 8px; break-inside: avoid; }
    .spec-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 14px;
      margin: 20px 0;
    }
    .spec-card {
      border: 1px solid var(--tps-line);
      border-radius: 16px;
      padding: 18px;
      background: #fff;
    }
    .spec-card strong {
      display: block;
      color: var(--tps-dark);
      font-size: 20px;
      margin-bottom: 4px;
    }
    figure {
      margin: 32px 0;
      border: 1px solid var(--tps-line);
      border-radius: 20px;
      padding: 14px;
      background: #fff;
    }
    figure img,
    figure .article-svg {
      display: block;
      width: 100%;
      height: auto;
      border-radius: 14px;
    }
    figcaption {
      color: var(--tps-muted);
      font-size: 14px;
      margin-top: 10px;
    }
    table {
      width: 100%;
      border-collapse: collapse;
      margin: 20px 0 28px;
      font-size: 15px;
    }
    th, td {
      border: 1px solid #d8e1de;
      padding: 12px;
      text-align: left;
      vertical-align: top;
    }
    th {
      background: #eaf5ef;
      color: var(--tps-dark);
    }
    .two-col {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 22px;
    }
    .checklist li, .faq li {
      margin-bottom: 10px;
    }
    .cta-row {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 18px;
    }
    .btn {
      display: inline-block;
      padding: 12px 18px;
      border-radius: 999px;
      background: var(--tps-green);
      color: #fff;
      font-weight: 700;
    }
    .btn.secondary {
      background: #ffffff;
      color: var(--tps-green);
      border: 1px solid var(--tps-green);
    }
    @media (max-width: 760px) {
      .toc ol { columns: 1; }
      .spec-grid, .two-col { grid-template-columns: 1fr; }
      table { font-size: 14px; }
      h2 { font-size: 25px; }
    }