.tps-article {
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      line-height: 1.7;
      color: #333;
      max-width: 900px;
      margin: 0 auto;
      padding: 1rem;
    }
    .tps-article h1,
    .tps-article h2,
    .tps-article h3 {
      color: #3598db;
      font-weight: 650;
      line-height: 1.4;
    }
    .tps-article h1 {
      font-size: 1.9rem;
      margin-bottom: 0.5rem;
    }
    .tps-article h2 {
      font-size: 1.35rem;
      margin-top: 2.2rem;
      margin-bottom: 0.75rem;
    }
    .tps-article h3 {
      font-size: 1.1rem;
      margin-top: 1.5rem;
      margin-bottom: 0.5rem;
    }
    .tps-article p {
      margin: 0.6rem 0;
    }
    .tps-article a {
      color: #3598db;
      text-decoration: none;
    }
    .tps-article a:hover {
      text-decoration: underline;
    }
    .tps-toc {
      border-radius: 10px;
      background: #f5f9fc;
      padding: 1rem 1.25rem;
      margin: 1.5rem 0 2rem;
      border: 1px solid #e0edf8;
    }
    .tps-toc h2 {
      margin-top: 0;
      font-size: 1.1rem;
    }
    .tps-toc ul {
      padding-left: 1.1rem;
      margin: 0.4rem 0;
    }
    .tps-toc li {
      margin: 0.2rem 0;
    }
    .tps-cta-group {
      display: flex;
      flex-wrap: wrap;
      gap: 0.75rem;
      margin: 1.5rem 0 2rem;
    }
    .tps-btn {
      display: inline-block;
      padding: 0.6rem 1.2rem;
      border-radius: 999px;
      border: 1px solid #3598db;
      background: #3598db;
      color: #fff;
      font-size: 0.95rem;
      font-weight: 600;
      text-decoration: none;
      text-align: center;
      white-space: nowrap;
    }
    .tps-btn--outline {
      background: #fff;
      color: #3598db;
    }
    .tps-btn:hover {
      opacity: 0.9;
      text-decoration: none;
    }
    .tps-note {
      font-size: 0.9rem;
      color: #666;
    }
    figure.tps-figure {
      margin: 1.75rem 0;
      padding: 1rem;
      background: #f8fbff;
      border-radius: 12px;
      border: 1px solid #e1ecf7;
    }
    figure.tps-figure svg {
      width: 100%;
      max-height: 260px;
      display: block;
    }
    figure.tps-figure figcaption {
      font-size: 0.9rem;
      color: #555;
      margin-top: 0.4rem;
    }
    .tps-faq details {
      margin: 0.6rem 0;
      border-radius: 8px;
      border: 1px solid #e3ecf5;
      padding: 0.6rem 0.75rem;
      background: #fbfdff;
    }
    .tps-faq summary {
      cursor: pointer;
      font-weight: 600;
      color: #246aa0;
      list-style: none;
    }
    .tps-faq summary::-webkit-details-marker {
      display: none;
    }
    .tps-faq p {
      margin-top: 0.4rem;
    }
    .tps-share {
      margin-top: 2rem;
      padding-top: 1rem;
      border-top: 1px solid #e5e5e5;
      font-size: 0.9rem;
    }
    .tps-share-list {
      display: flex;
      flex-wrap: wrap;
      gap: 0.5rem;
      margin-top: 0.4rem;
    }
    .tps-share-list a {
      padding: 0.25rem 0.7rem;
      border-radius: 999px;
      border: 1px solid #d0d7e2;
      font-size: 0.85rem;
    }
    @media (max-width: 600px) {
      .tps-article {
        padding: 0.5rem;
      }
      .tps-cta-group {
        flex-direction: column;
        align-items: stretch;
      }
    }