.tps-article {
    max-width: 980px;
    margin: 0 auto;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: #1f2933;
    line-height: 1.7;
    font-size: 16px;
  }
  .tps-article h1,
  .tps-article h2,
  .tps-article h3 {
    color: #3598db;
    line-height: 1.3;
    font-weight: 700;
    margin-top: 1.6em;
    margin-bottom: 0.5em;
  }
  .tps-article h1 { font-size: 30px; }
  .tps-article h2 { font-size: 22px; }
  .tps-article h3 { font-size: 18px; }

  .tps-article p { margin: 0 0 0.9em; }

  .tps-article ul,
  .tps-article ol {
    margin: 0.2em 0 1.1em 1.5em;
  }

  .tps-toc {
    margin: 24px 0 30px;
    padding: 16px 18px;
    border-radius: 10px;
    background: #f5f9ff;
    border: 1px solid #d6e4f5;
  }
  .tps-toc ol { margin-left: 1.2em; }

  .tps-badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 999px;
    background: #e3f2ff;
    color: #1b567f;
    font-size: 12px;
    font-weight: 600;
    margin-right: 8px;
  }

  .tps-note {
    border-left: 3px solid #3598db;
    padding-left: 12px;
    margin: 1em 0;
    font-size: 15px;
    color: #52606d;
  }

  .tps-cta-group {
    margin: 1.2em 0 1.8em;
  }
  .tps-btn-primary,
  .tps-btn-secondary {
    display: inline-block;
    padding: 9px 18px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    border: 1px solid transparent;
    white-space: nowrap;
    transition: all 0.15s ease-in-out;
  }
  .tps-btn-primary {
    background: #3598db;
    color: #ffffff;
    border-color: #3598db;
  }
  .tps-btn-primary:hover {
    background: #2779b8;
    border-color: #2779b8;
  }
  .tps-btn-secondary {
    background: #ffffff;
    color: #3598db;
    border-color: #3598db;
  }
  .tps-btn-secondary:hover {
    background: #e4f1fc;
  }

  .tps-article figure {
    margin: 22px 0 24px;
    text-align: center;
  }
  .tps-article figcaption {
    margin-top: 8px;
    font-size: 13px;
    color: #6b7280;
  }

  .tps-checklist {
    padding: 16px 18px;
    border-radius: 10px;
    background: #fff7ed;
    border: 1px solid #fed7aa;
  }

  .tps-faq {
    margin-top: 32px;
    border-top: 1px solid #d6e4f5;
    padding-top: 20px;
  }
  .tps-faq-item { margin-bottom: 16px; }

  @media (max-width: 768px) {
    .tps-article { padding: 0 12px; }
  }