.hts-blog { max-width: 820px; margin: 0 auto; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; color: #2d3252; line-height: 1.75; }
  .hts-blog .breadcrumb { font-size: 0.85rem; color: #6b7488; margin-bottom: 1.2rem; }
  .hts-blog .breadcrumb a { color: #6b7488; text-decoration: none; }
  .hts-blog .breadcrumb a:hover { color: #d6403c; }
  .hts-blog .breadcrumb-separator { margin: 0 0.4rem; }
  .hts-blog .blog-cover {
    width: 100%;
    border-radius: 18px;
    overflow: hidden;
    margin: 1.2rem 0 2rem;
    background: linear-gradient(135deg, #2d3252 0%, #232543 100%);
    position: relative;
    aspect-ratio: 16/9;
  }
  .hts-blog .blog-cover svg { width: 100%; height: 100%; display: block; }
  .hts-blog .blog-meta { color: #6b7488; font-size: 0.92rem; margin: 0 0 1.5rem; padding-bottom: 1rem; border-bottom: 1px solid #e6e8ee; }
  .hts-blog .blog-meta span { margin-right: 1.2rem; display: inline-block; }
  .hts-blog h1 {
    font-family: Georgia, "Times New Roman", serif;
    font-size: 2.4rem;
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin: 0.5rem 0 0.3rem;
    color: #2d3252;
  }
  .hts-blog .blog-lead { font-size: 1.18rem; line-height: 1.65; color: #404557; margin: 1.5rem 0 2.5rem; padding-left: 1.2rem; border-left: 3px solid #d6403c; font-weight: 400; }
  .hts-blog h2 { font-family: Georgia, serif; font-size: 1.85rem; font-weight: 600; margin: 3rem 0 1rem; color: #2d3252; letter-spacing: -0.015em; line-height: 1.25; }
  .hts-blog h3 { font-family: Georgia, serif; font-size: 1.35rem; font-weight: 600; margin: 2rem 0 0.7rem; color: #2d3252; line-height: 1.3; }
  .hts-blog p { margin: 0 0 1.2rem; font-size: 1.05rem; }
  .hts-blog ul, .hts-blog ol { margin: 0 0 1.4rem; padding-left: 1.5rem; }
  .hts-blog li { margin-bottom: 0.5rem; line-height: 1.65; }
  .hts-blog strong { color: #2d3252; font-weight: 600; }
  .hts-blog em { font-style: italic; color: #d6403c; }
  .hts-blog a { color: #d6403c; text-decoration: none; border-bottom: 1px solid rgba(199,0,4,0.3); transition: border-color 0.2s ease; }
  .hts-blog a:hover { border-bottom-color: #d6403c; }
  .hts-blog .info-box { background: #f7f8fb; border-left: 3px solid #d6403c; border-radius: 8px; padding: 1.25rem 1.5rem; margin: 1.8rem 0; }
  .hts-blog .info-box-title { font-family: Georgia, serif; font-weight: 600; color: #d6403c; margin-bottom: 0.5rem; font-size: 1rem; }
  .hts-blog .info-box p:last-child { margin-bottom: 0; }
  .hts-blog table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; font-size: 0.95rem; }
  .hts-blog th, .hts-blog td { padding: 0.85rem 1rem; text-align: left; border-bottom: 1px solid #e6e8ee; }
  .hts-blog th { background: #f7f8fb; font-weight: 600; color: #2d3252; }
  .hts-blog .cta-box { background: linear-gradient(135deg, #2d3252 0%, #232543 100%); color: #f7f3ec; border-radius: 18px; padding: 2.2rem 2rem; margin: 2.5rem 0; text-align: center; position: relative; overflow: hidden; }
  .hts-blog .cta-box::before { content: ''; position: absolute; top: 0; right: 0; bottom: 0; width: 50%; background: radial-gradient(ellipse at right, rgba(199,0,4,0.15), transparent 60%); pointer-events: none; }
  .hts-blog .cta-box * { position: relative; }
  .hts-blog .cta-box h3 { color: #f7f3ec; margin: 0 0 0.7rem; font-size: 1.4rem; }
  .hts-blog .cta-box p { color: rgba(247,243,236,0.8); margin: 0 0 1.2rem; }
  .hts-blog .cta-box a { display: inline-block; background: #d6403c; color: #fff; padding: 0.9rem 1.8rem; border-radius: 999px; text-decoration: none; font-weight: 600; font-size: 0.95rem; transition: background 0.2s ease; border-bottom: none; }
  .hts-blog .cta-box a:hover { background: #b8322e; }
  .hts-blog .module-link { display: block; background: #f7f8fb; border: 1px solid #e6e8ee; border-left: 3px solid #d6403c; border-radius: 12px; padding: 1.1rem 1.4rem; margin: 1.4rem 0; text-decoration: none; color: #2d3252; transition: all 0.2s ease; border-bottom: 1px solid #e6e8ee !important; }
  .hts-blog .module-link:hover { background: #fff; border-color: #d6403c; transform: translateY(-1px); box-shadow: 0 6px 18px -8px rgba(199,0,4,0.2); }
  .hts-blog .module-link strong { display: block; margin-bottom: 0.25rem; color: #d6403c; font-size: 1.05rem; }
  .hts-blog .module-link span { color: #6b7488; font-size: 0.92rem; line-height: 1.5; }
  .hts-blog .toc { background: #f7f8fb; border: 1px solid #e6e8ee; border-radius: 12px; padding: 1.3rem 1.6rem; margin: 2rem 0; }
  .hts-blog .toc-title { font-family: Georgia, serif; font-weight: 600; margin: 0 0 0.8rem; color: #2d3252; font-size: 1.05rem; }
  .hts-blog .toc ul { margin: 0; padding-left: 1.3rem; }
  .hts-blog .toc li { margin-bottom: 0.35rem; }
  .hts-blog .toc a { color: #d6403c; text-decoration: none; border-bottom: none; font-size: 0.96rem; }
  .hts-blog .toc a:hover { text-decoration: underline; }
  .hts-blog .related-posts { background: #f7f8fb; border-radius: 14px; padding: 1.8rem; margin: 2.5rem 0; }
  .hts-blog .related-posts h3 { margin: 0 0 1rem; font-size: 1.15rem; }
  .hts-blog .related-posts ul { list-style: none; padding: 0; margin: 0; }
  .hts-blog .related-posts li { margin-bottom: 0.7rem; padding-left: 1.5rem; position: relative; }
  .hts-blog .related-posts li::before { content: '→'; position: absolute; left: 0; color: #d6403c; font-weight: 700; }
  .hts-blog .related-posts a { color: #2d3252; border-bottom: none; font-weight: 500; }
  .hts-blog .related-posts a:hover { color: #d6403c; }
  .hts-blog .key-points { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1rem; margin: 1.8rem 0; }
  .hts-blog .key-point { background: #fff; border: 1px solid #e6e8ee; border-radius: 12px; padding: 1.2rem; }
  .hts-blog .key-point-icon { font-size: 1.6rem; margin-bottom: 0.4rem; }
  .hts-blog .key-point-title { font-family: Georgia, serif; font-weight: 600; color: #2d3252; margin: 0 0 0.4rem; font-size: 1rem; }
  .hts-blog .key-point p { margin: 0; font-size: 0.9rem; color: #6b7488; line-height: 1.5; }
  .hts-blog .footnote { color: #6b7488; font-size: 0.88rem; font-style: italic; margin-top: 2.5rem; padding-top: 1.5rem; border-top: 1px solid #e6e8ee; }
  .hts-blog .timeline { border-left: 2px solid #e6e8ee; padding-left: 1.5rem; margin: 2rem 0; }
  .hts-blog .timeline-item { position: relative; margin-bottom: 1.5rem; padding-bottom: 1rem; }
  .hts-blog .timeline-item::before { content: ''; position: absolute; left: -1.6rem; top: 0.4rem; width: 12px; height: 12px; border-radius: 50%; background: #d6403c; }
  .hts-blog .timeline-year { font-family: Georgia, serif; font-weight: 600; color: #d6403c; margin: 0 0 0.3rem; font-size: 1.05rem; }
  .hts-blog .timeline-item p { margin: 0; font-size: 0.98rem; }
  .hts-blog .faq-item { border: 1px solid #e6e8ee; border-radius: 12px; padding: 1.2rem 1.5rem; margin-bottom: 1rem; background: #fff; }
  .hts-blog .faq-item h3 { margin: 0 0 0.7rem; font-size: 1.1rem; color: #d6403c; }
  .hts-blog .faq-item p:last-child { margin-bottom: 0; }