:root {
      --text: #222;
      --muted: #666;
      --border: #e5e5e5;
      --accent: #1f6b4f;
      --accent-light: #eef6f1;
      --max-width: 760px;
    }

    * {
      box-sizing: border-box;
    }

    body {
      margin: 0;
      background: #fff;
      color: var(--text);
      font-family: Arial, Helvetica, sans-serif;
      line-height: 1.75;
      font-size: 16px;
    }

    .article-container {
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 40px 20px 70px;
    }

    .breadcrumb {
      font-size: 13px;
      color: var(--muted);
      margin-bottom: 28px;
    }

    .breadcrumb a {
      color: var(--muted);
      text-decoration: none;
    }

    .breadcrumb a:hover {
      color: var(--accent);
    }

    .article-header {
      margin-bottom: 42px;
    }

    .article-header h1 {
      margin: 0 0 18px;
      font-family: Georgia, "Times New Roman", serif;
      font-size: 42px;
      line-height: 1.2;
      font-weight: 700;
      letter-spacing: -0.5px;
    }

    .article-meta {
      color: var(--muted);
      font-size: 14px;
      margin-bottom: 22px;
    }

    .article-lede {
      font-size: 19px;
      line-height: 1.7;
      color: #444;
    }

    h2 {
      font-family: Georgia, "Times New Roman", serif;
      font-size: 30px;
      line-height: 1.3;
      margin: 46px 0 18px;
    }

    h3 {
      font-family: Georgia, "Times New Roman", serif;
      font-size: 22px;
      line-height: 1.4;
      margin: 30px 0 12px;
    }

    p {
      margin: 0 0 18px;
    }

    ul,
    ol {
      margin: 0 0 22px;
      padding-left: 25px;
    }

    li {
      margin-bottom: 8px;
    }

    strong {
      font-weight: 700;
    }

    .divider {
      border: 0;
      border-top: 1px solid var(--border);
      margin: 42px 0;
    }

    .answer-box {
      border-left: 4px solid var(--accent);
      padding: 5px 22px;
      margin: 25px 0 30px;
    }

    .answer-box strong {
      display: block;
      margin-bottom: 6px;
      color: var(--accent);
    }

    .product-box {
      border: 1px solid var(--border);
      padding: 25px;
      margin: 30px 0;
      background: #fff;
    }

    .product-box h3 {
      margin-top: 0;
    }

    .product-box a {
      color: var(--accent);
      font-weight: 600;
      text-decoration: none;
    }

    .cta-box {
      margin: 45px 0 20px;
      padding: 28px;
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
      text-align: center;
    }

    .cta-box h3 {
      margin-top: 0;
    }

    .cta-box a {
      display: inline-block;
      margin-top: 8px;
      color: #fff;
      background: var(--accent);
      padding: 11px 22px;
      text-decoration: none;
      font-weight: 600;
      border-radius: 3px;
    }

    .faq-section {
      margin-top: 45px;
    }

    .faq-item {
      border-bottom: 1px solid var(--border);
      padding: 17px 0;
    }

    .faq-item summary {
      cursor: pointer;
      font-weight: 700;
      font-size: 17px;
      list-style: none;
      position: relative;
      padding-right: 30px;
    }

    .faq-item summary::-webkit-details-marker {
      display: none;
    }

    .faq-item summary::after {
      content: "+";
      position: absolute;
      right: 0;
      top: 0;
      font-size: 22px;
      font-weight: 400;
      color: var(--accent);
    }

    .faq-item[open] summary::after {
      content: "−";
    }

    .faq-answer {
      color: #555;
      padding-top: 12px;
    }

    .related-articles {
      margin-top: 55px;
      padding-top: 30px;
      border-top: 1px solid var(--border);
    }

    .related-articles h2 {
      font-size: 25px;
      margin-top: 0;
    }

    .related-articles ul {
      padding-left: 20px;
    }

    .related-articles a {
      color: var(--accent);
      text-decoration: none;
    }

    .article-footer {
      margin-top: 55px;
      padding-top: 25px;
      border-top: 1px solid var(--border);
      color: var(--muted);
      font-size: 13px;
      text-align: center;
    }

    @media (max-width: 600px) {
      .article-container {
        padding: 28px 17px 50px;
      }

      .article-header h1 {
        font-size: 32px;
      }

      .article-lede {
        font-size: 17px;
      }

      h2 {
        font-size: 26px;
      }

      h3 {
        font-size: 20px;
      }
    }