.table-container {
      overflow-x: auto;
      width: 100%;
      margin-bottom: 30px;
    }

    .fixed-table {
      border-collapse: collapse;
      table-layout: auto;
      width: max-content;
      min-width: 400px;
    }

    .fixed-table th,
    .fixed-table td {
      border: 1px solid #ccc;
      padding: 10px;
      text-align: center;
      white-space: normal;
      word-break: break-word;
    }

    .fixed-table img {
      width: 80px;
      height: auto;
      object-fit: contain;
      display: block;
      margin: 0 auto;
    }

    .fixed-table iframe {
      width: 100%;
      max-width: 300px;
      height: auto;
      aspect-ratio: 16 / 9;
      border: none;
      display: block;
      margin: 0 auto;
    }

    .card-container {
      display: none;
    }

    @media screen and (max-width: 768px) {
      .table-container {
        display: none;
      }
      .fixed-table {
        display: none;
      }

      .card-container {
        display: block;
      }
      .class-card {
        background: #fff;
        padding: 16px;
        margin-bottom: 24px;
        border-radius: 8px;
        box-shadow: 0 2px 8px rgba(0,0,0,0.1);
      }
      .class-card img {
        width: 100%;
        height: auto;
        margin-bottom: 10px;
      }
      .class-card iframe {
        width: 100%;
        height: auto;
        aspect-ratio: 16 / 9;
        margin-top: 10px;
      }
      .class-card h3 {
        margin-top: 0;
        font-size: 1.2em;
      }
      .class-card p {
        margin: 5px 0;
      }
    }