/* ====================================
   おすすめコラム - カルーセルセクション
   ==================================== */

   .recommended-columns {
    background-color: #fff;
    padding: 40px 0 50px;
    overflow: hidden;
  }
  
  .section-title {
    font-size: 32px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 50px;
    color: #1a1a1a;
    letter-spacing: 0.5px;
  }
  
  /* カルーセルラッパー */
  .carousel-wrapper {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 70px;
  }
  
  /* カルーセルコンテナ */
  .carousel-container {
    overflow: hidden;
    width: 100%;
  }
  
  /* カルーセルトラック */
  .carousel-track {
    display: flex;
    gap: 20px;
    transition: transform 0.5s ease;
  }
  
  /* カルーセルアイテム */
  .carousel-item {
    flex: 0 0 calc(33.333% - 14px);
    min-width: 0;
  }
  
  /* カラムカード */
  .column-card {
    display: block;
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    border: 1px solid #e8e8e8;
    transition: all 0.3s ease;
    text-decoration: none;
    height: 100%;
    display: flex;
    flex-direction: column;
  }
  
  .column-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    text-decoration: none;
  }
  
  /* カラム画像 */
  .column-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: #f5f5f5;
  }
  
  .column-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
  }
  
  .column-card:hover .column-image img {
    transform: scale(1.05);
  }
  
  /* カラムコンテンツ */
  .column-content {
    padding: 20px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
  }
  
  .column-title {
    font-size: 16px;
    font-weight: 600;
    line-height: 1.6;
    color: #1a1a1a;
    margin-bottom: 12px;
    flex-grow: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  
  .column-date {
    font-size: 13px;
    color: #999;
    margin-top: auto;
  }
  
  /* カルーセルナビゲーションボタン */
  .carousel-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: #fff;
    border: 2px solid #0066cc;
    border-radius: 50%;
    cursor: pointer;
    z-index: 10;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .carousel-nav:hover {
    background: #0066cc;
    transform: translateY(-50%) scale(1.1);
  }
  
  .carousel-nav:active {
    transform: translateY(-50%) scale(0.95);
  }
  
  .carousel-nav.prev {
    left: 0;
  }
  
  .carousel-nav.next {
    right: 0;
  }
  
  .carousel-nav:disabled {
    opacity: 0.3;
    cursor: not-allowed;
    border-color: #ccc;
  }
  
  .carousel-nav:disabled:hover {
    background: #fff;
    transform: translateY(-50%);
  }
  
  /* 矢印のスタイル */
  .carousel-nav span {
    display: block;
    position: relative;
    width: 100%;
    height: 100%;
  }
  
  .carousel-nav span::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 12px;
    height: 12px;
    border-top: 3px solid #0066cc;
    border-right: 3px solid #0066cc;
    transform: translate(-50%, -50%) rotate(45deg);
    transition: border-color 0.3s ease;
  }
  
  .carousel-nav.prev span::before {
    transform: translate(-30%, -50%) rotate(-135deg);
  }
  
  .carousel-nav.next span::before {
    transform: translate(-70%, -50%) rotate(45deg);
  }
  
  .carousel-nav:hover span::before {
    border-color: #fff;
  }
  
  .carousel-nav:disabled span::before {
    border-color: #ccc;
  }
  
  /* カルーセルCTA */
  .carousel-cta {
    text-align: center;
    margin-top: 50px;
  }
  
  .carousel-cta-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 48px;
    background: #fff;
    color: #0066cc;
    border: 2px solid #0066cc;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.3s ease;
    letter-spacing: 0.5px;
  }
  
  .carousel-cta-button:hover {
    background: #0066cc;
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
    text-decoration: none;
  }
  
  .carousel-cta-button svg {
    transition: transform 0.3s ease;
  }
  
  .carousel-cta-button:hover svg {
    transform: translateX(4px);
  }
  
  /* タブレット表示 */
  @media (max-width: 1024px) {
    .recommended-columns {
      padding: 35px 0 45px;
    }
  
    .section-title {
      font-size: 28px;
      margin-bottom: 40px;
    }
  
    .carousel-wrapper {
      padding: 0 60px;
    }
  
    .carousel-item {
      flex: 0 0 calc(50% - 10px);
    }
  
    .carousel-nav {
      width: 45px;
      height: 45px;
    }
  }
  
  /* スマートフォン表示 */
  @media (max-width: 768px) {
    .recommended-columns {
      padding: 30px 0 40px;
    }
  
    .section-title {
      font-size: 24px;
      margin-bottom: 30px;
    }
  
    .carousel-wrapper {
      padding: 0 50px;
    }
  
    .carousel-item {
      flex: 0 0 100%;
    }
  
    .column-image {
      height: 180px;
    }
  
    .column-title {
      font-size: 15px;
    }
  
    .carousel-nav {
      width: 40px;
      height: 40px;
    }
  
    .carousel-nav span::before {
      width: 10px;
      height: 10px;
      border-width: 2px;
    }
  
    .carousel-cta-button {
      width: 100%;
      max-width: 320px;
      justify-content: center;
    }
  }
  
  /* 小型スマートフォン表示 */
  @media (max-width: 480px) {
    .recommended-columns {
      padding: 24px 0 35px;
    }
  
    .section-title {
      font-size: 22px;
      margin-bottom: 24px;
    }
  
    .carousel-wrapper {
      padding: 0 45px;
    }
  
    .column-image {
      height: 160px;
    }
  
    .column-content {
      padding: 16px;
    }
  
    .column-title {
      font-size: 14px;
    }
  
    .carousel-nav {
      width: 35px;
      height: 35px;
    }
  
    .carousel-cta {
      margin-top: 40px;
    }
  
    .carousel-cta-button {
      padding: 14px 36px;
      font-size: 15px;
    }
  }