body {
      font-family: Arial, sans-serif;
      line-height: 1.6;
      max-width: 900px;
      margin: 0 auto;
      padding: 20px;
      color: #333;
    }
    h1 {
      font-size: 28px;
      border-bottom: 2px solid #eee;
      padding-bottom: 10px;
      margin-bottom: 8px;
    }
    h2 { font-size: 22px; margin-top: 30px; color: #2c3e50; }
    h3 { font-size: 18px; margin-top: 24px; color: #2c3e50; }
    .toc {
      background-color: #f8f9fa;
      padding: 15px 20px;
      border-radius: 8px;
      margin-bottom: 30px;
    }
    .toc h3 { margin-top: 0; }
    .toc ul { list-style: none; padding-left: 0; }
    .toc li { margin-bottom: 8px; }
    .toc a { text-decoration: none; color: #0066cc; }
    .toc a:hover { text-decoration: underline; }
    .buyer-voice {
      background-color: #fffbf0;
      padding: 15px;
      border-left: 4px solid #e6a817;
      margin: 20px 0;
      font-style: italic;
    }
    .company-highlight {
      background-color: #eef7ff;
      padding: 15px;
      border-left: 4px solid #0066cc;
      margin: 20px 0;
    }
    table { width: 100%; border-collapse: collapse; margin: 20px 0; }
    th {
      background-color: #2c3e50;
      color: #fff;
      padding: 10px 14px;
      text-align: left;
      font-size: 14px;
    }
    td { padding: 10px 14px; border-top: 1px solid #eee; font-size: 14px; }
    tr:nth-child(even) td { background-color: #f8f9fa; }
    .kw { font-weight: 600; color: #2c3e50; }
    footer {
      margin-top: 40px;
      font-size: 14px;
      color: #777;
      border-top: 1px solid #eee;
      padding-top: 15px;
    }