.brand-section {
    padding: 30px 0;
    text-align: center;
  }

  .brand-section h2 {
    font-size: 22px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 20px;
  }

  .brand-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 20px 30px;
    align-items: center;
    justify-items: center;
    max-width: 1000px;
    margin: 0 auto;
  }

  .brand-item {
    text-align: center;
  }

  .brand-logo {
    position: relative;
    width: 120px;
    max-width: 100%;
    aspect-ratio: 1 / 1;
  }

  .brand-logo img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: opacity 0.25s ease;
  }

  .brand-logo img.color {
    opacity: 0;
  }

  a.brand-item:hover .brand-logo img.color,
  a.brand-item:focus .brand-logo img.color {
    opacity: 1;
  }

  a.brand-item:hover .brand-logo img.gray,
  a.brand-item:focus .brand-logo img.gray {
    opacity: 0;
  }

  .brand-name {
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-top: 8px;
  }

  .brand-role {
    font-size: 11px;
    color: #777;
    margin-top: 2px;
  }

  /* main / mother brand ใหญ่กว่านิดหน่อย */
  .brand-item.main .brand-logo {
    width: 140px;
  }