/* 案例卡片 */
  .main {
      margin-top: 10rem;
  }

  /* 标题区域 */
  .section-header {
      padding: 3rem 0 2rem;
      border-bottom: 1px solid #D6D6D6;
      margin-bottom: 3rem;
  }

  .section-subtitle {
      color: #ff2b0f;
      font-size: 0.9rem;
      margin-bottom: 0.5rem;
  }

  .section-title {
      font-size: 2.5rem;
      font-weight: 700;
      margin: 0;
  }

  .case-card {
      margin-bottom: 2rem;
      opacity: 0;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2),
          0 1px 3px rgba(0, 0, 0, 0.1);
      transform: translateY(30px);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
  }

  .card-body {
      width: 100%;
      height: 5.35rem;
      display: flex;
      align-items: center;
      padding: 0 1.5rem;
  }

  .case-card.show {
      opacity: 1;
      transform: translateY(0);
  }

  .case-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
  }

  .case-card-img {
      position: relative;
      overflow: hidden;
      display: flex;
      justify-content: center;
  }

  .case-card-img img {
      width: 100%;
      height: auto;
      display: block;
      transition: transform 0.3s ease;
  }

  .case-card:hover .case-card-img img {
      transform: scale(1.03);
  }

  .case-card-tag {
      position: absolute;
      bottom: 1.5rem;
      background: rgba(0, 0, 0, 0.3);
      color: #FFFFFF;
      padding: 0.5rem 1rem;
      border-radius: 0.5rem;
      font-size: 0.9rem;
  }

  .case-card-title {
      font-size: 1.25rem;
      font-weight: 600;
  }

  @media (max-width: 767px) {
      .section-subtitle,
      .section-title {
          text-align: center;
      }
  }