/* ==========================================================
   動画スタイル (モバイル用)
========================================================== */
@media (max-width: 600px) {
  .video-gallery {
    margin-bottom: 30px;
  }

  .video-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    list-style: none;
    padding: 0;
  }

  .video-item {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    padding: 15px;
    text-align: center;
  }

  .video-title {
    cursor: pointer;
    margin-bottom: 10px;
    font-size: 1.1rem;
    color: #0078ff;
    border-bottom: 1px solid #ddd;
    padding-bottom: 5px;
  }

  .arrow {
    text-align: center;
    margin: 10px auto;
    cursor: pointer;
    background: gray;
    color: white;
    padding: 5px 10px;
    border-radius: 4px;
    width: fit-content;
    display: block;
  }

  .video-content {
    display: none;
  }

  .video-content.show {
    display: block;
  }

  .video-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    margin-top: 10px;
  }

  .video-card {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    padding: 15px;
    text-align: center;
  }

  .video-card video {
    width: 100%;
    height: auto;
    max-width: 100%;
    border-radius: 4px;
    aspect-ratio: 16 / 9;
  }

  .video-card p {
    margin-top: 10px;
    font-weight: bold;
    color: #333;
  }

  .video-item video {
    width: 100%;
    height: auto;
    max-width: 100%;
    border-radius: 4px;
    aspect-ratio: 16 / 9;
  }

  .video-item p {
    margin-top: 10px;
    font-weight: bold;
    color: #333;
  }
}