.gallery-section {
    max-width: 1000px;
    margin: 40px auto;
    padding: 0 10px;
  }
  .gallery-title {
    text-align: center;
    font-size: 22px;
    margin: 30px 0 10px;
  }

  /* 瀑布流布局 - 多栏方案 */
  .grid {
    column-count: 4; /* PC端4列 */
    column-gap: 10px;
    break-inside: avoid;
  }
  @media (max-width: 1024px) {
    .grid {
      column-count: 3; /* 平板3列 */
    }
  }
  @media (max-width: 768px) {
    .grid {
      column-count: 2; /* 手机2列 */
    }
  }

  .grid img {
    width: 100%;
    margin-bottom: 10px;
    cursor: pointer;
    border-radius: 0;
    transition: transform 0.2s ease;
    break-inside: avoid; /* 防止图片断裂跨列 */
  }

  .grid img:hover {
    transform: scale(1.03);
  }

  /* PC端少于3张图片时，关闭多栏并居中显示 */
  @media (min-width: 769px) {
    .grid.few-images {
      column-count: 0 !important;
      display: block !important;
      text-align: center;
    }
    .grid.few-images img {
      display: inline-block;
      width: auto;
      max-width: 240px;
      margin: 0 10px 15px 10px;
    }
  }

  /* 灯箱样式 */
  .lightbox-modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.9);
    justify-content: center;
    align-items: center;
    z-index: 9999;
  }

  .lightbox-img {
    max-width: 90%;
    max-height: 90%;
    cursor: zoom-in;
    transition: transform 0.3s;
  }

  .lightbox-img.zoomed {
    transform: scale(1.8);
    cursor: zoom-out;
  }

  /* PC端左右箭头更明显 */
  @media (min-width: 769px) {
    .lightbox-arrow {
      position: absolute;
      top: 50%;
      transform: translateY(-50%);
      font-size: 40px;
      color: #fff;
      background: rgba(0, 0, 0, 0.6);
      padding: 8px 14px;
      border-radius: 4px;
      cursor: pointer;
      user-select: none;
    }
    .lightbox-arrow.left {
      left: 20px;
    }
    .lightbox-arrow.right {
      right: 20px;
    }
  }

  /* 移动端箭头样式 */
  @media (max-width: 768px) {
    .lightbox-arrow {
      font-size: 28px;
      padding: 6px 10px;
      background: rgba(0, 0, 0, 0.3);
      position: absolute;
      top: 50%;
      transform: translateY(-50%);
      color: #fff;
      border-radius: 4px;
      cursor: pointer;
      user-select: none;
    }
    .lightbox-arrow.left {
      left: 20px;
    }
    .lightbox-arrow.right {
      right: 20px;
    }
  }

  .lightbox-close {
    position: absolute;
    top: 20px;
    right: 30px;
    font-size: 38px;
    color: #fff;
    cursor: pointer;
    user-select: none;
  }