.breadcrumb {
      padding: 16px 20px;
      background-color: #fff;
      font-size: 14px;
      font-weight: 400;
      color: #666;
      margin-left: 60px;
    }

    .breadcrumb ol {
      list-style: none;
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin: 0;
      padding: 0;
    }

    .breadcrumb li {
      display: flex;
      align-items: center;
    }

    .breadcrumb li+li::before {
      content: "›";
      margin: 0 6px;
      color: #999;
    }

    .breadcrumb a {
      color: #007bff;
      text-decoration: none;
      transition: color 0.2s ease;
    }

    .breadcrumb a:hover {
      text-decoration: underline;
      color: #0056b3;
    }

    .breadcrumb li:last-child {
      color: #999;
      font-weight: 500;
    }

    /* Make header sticky */
    header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: #fff;
      transition: box-shadow 0.3s ease;
    }

    /* Shadow class when scrolling */
    header.scrolled {
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
    }

    .navbar {
      position: sticky;
      top: 0;
      background: white;
      padding: 20px;
      z-index: 1000;
      box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }

    #backToTop {
      position: fixed;
      bottom: 30px;
      right: 30px;
      z-index: 999;
      display: none;
      background-color: #ff5e5e;
      color: white;
      border: none;
      padding: 12px 16px;
      border-radius: 50%;
      font-size: 20px;
      cursor: pointer;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
      transition: opacity 0.3s ease;
    }

    #backToTop:hover {
      background-color: #e14c4c;
    }