/* --- 波长对比表 --- */
  .laser-wavelength-comparison {
    max-width: 1280px;
    margin: 40px auto;
    padding: 0 1.8rem;
    font-family: Arial, Helvetica, sans-serif;
  }

  .laser-wavelength-comparison h2 {
    margin-bottom: 20px;
    font-size: 28px;
    line-height: 1.35;
    color: #1f2937;
  }

  .laser-wavelength-comparison .table-responsive {
    width: 100%;
    overflow-x: auto;
    border: 1px solid #e5e7eb;
    border-radius: 10px;
  }

  .laser-wavelength-comparison table {
    width: 100%;
    min-width: 850px;
    border-collapse: collapse;
    background: #ffffff;
  }

  .laser-wavelength-comparison th,
  .laser-wavelength-comparison td {
    padding: 16px;
    text-align: left;
    vertical-align: top;
    border-bottom: 1px solid #e5e7eb;
    line-height: 1.6;
    font-size: 15px;
  }

  .laser-wavelength-comparison th {
    background: #0f4c5c;
    color: #ffffff;
    font-weight: 700;
  }

  .laser-wavelength-comparison th:first-child {
    width: 18%;
  }

  .laser-wavelength-comparison td:first-child {
    width: 18%;
    background: #f8fafc;
    color: #1f2937;
  }

  .laser-wavelength-comparison tbody tr:last-child td {
    border-bottom: 0;
  }

  .laser-wavelength-comparison tbody tr:hover td {
    background: #f0f9ff;
  }

  .laser-wavelength-comparison .comparison-note {
    margin-top: 16px;
    padding: 14px 16px;
    border-left: 4px solid #0f4c5c;
    background: #f0f9ff;
    color: #334155;
    font-size: 14px;
    line-height: 1.7;
  }

  /* --- 采购指南 --- */
  .buyer-guide-section,
  .laser-faq-section {
    max-width: 1280px;
    margin: 40px auto;
    padding: 0 1.8rem;
    font-family: Arial, Helvetica, sans-serif;
    color: #222;
    line-height: 1.7;
  }

  .buyer-guide-section h2,
  .laser-faq-section h2 {
    margin: 0 0 16px;
    padding-bottom: 0.3rem;
    border-bottom: 2px solid #d0e2ef;
    font-size: 1.5rem;
    font-weight: 600;
    color: #144e6b;
  }

  .buyer-guide-section h3,
  .laser-faq-section h3 {
    margin: 24px 0 10px;
    font-size: 1.2rem;
    font-weight: 600;
    color: #1f6e8c;
  }

  .buyer-guide-section p {
    margin: 0 0 16px;
    font-size: 16px;
  }

  .buyer-list {
    margin: 12px 0 24px;
    padding-left: 0;
    list-style: none;
  }

  .buyer-list li {
    position: relative;
    margin-bottom: 10px;
    padding: 12px 16px 12px 44px;
    border-radius: 0 12px 12px 0;
    font-size: 16px;
    line-height: 1.65;
  }

  .buyer-list-positive li {
    border-left: 4px solid #2c7da0;
    background: #f0f7fc;
  }

  .buyer-list-positive li::before {
    content: "\2713";
    position: absolute;
    top: 12px;
    left: 16px;
    color: #1f6e8c;
    font-size: 17px;
    font-weight: 700;
  }

  .buyer-list-caution li {
    border-left: 4px solid #d69e2e;
    background: #fffaf0;
  }

  .buyer-list-caution li::before {
    content: "\0021";
    position: absolute;
    top: 12px;
    left: 18px;
    color: #b7791f;
    font-size: 17px;
    font-weight: 700;
  }

  .buyer-list-check li {
    border-left: 4px solid #cbd5e0;
    background: #f8fafc;
  }

  .buyer-list-check li::before {
    content: "";
    position: absolute;
    top: 19px;
    left: 18px;
    width: 13px;
    height: 13px;
    border-radius: 50%;
    background: #0f4c5c;
    box-shadow: inset 0 0 0 3px #ffffff;
  }

  /* --- FAQ --- */
  .laser-faq-section .faq-item {
    margin-bottom: 18px;
    padding: 18px 20px;
    border: 1px solid #e2edf2;
    border-radius: 16px;
    background: #fafeff;
  }

  .laser-faq-section .faq-item h3 {
    margin-top: 0;
    margin-bottom: 8px;
  }

  .laser-faq-section .faq-item p {
    margin: 0;
    font-size: 16px;
    line-height: 1.7;
  }

  @media (max-width: 768px) {
    .laser-wavelength-comparison,
    .buyer-guide-section,
    .laser-faq-section {
      padding: 0 1rem;
    }

    .laser-wavelength-comparison h2 {
      font-size: 23px;
    }

    .buyer-guide-section h2,
    .laser-faq-section h2 {
      font-size: 1.3rem;
    }

    .buyer-guide-section h3,
    .laser-faq-section h3 {
      font-size: 1.05rem;
    }

    .laser-wavelength-comparison th,
    .laser-wavelength-comparison td {
      padding: 12px;
      font-size: 14px;
    }

    .buyer-list li,
    .buyer-guide-section p,
    .laser-faq-section .faq-item p {
      font-size: 15px;
    }
  }