.instig-user-dashboard {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-top: 20px;
  }
  .instig-card {
    flex: 1 1 280px;
    background: #fff;
    border-radius: 10px;
    padding: 16px 20px;
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.08);
    transition: 0.3s;
  }
  .instig-card h3 {
    margin-top: 0;
    font-size: 17px;
    color: #333;
    border-bottom: 1px solid #ddd;
    padding-bottom: 6px;
    margin-bottom: 12px;
  }
  .instig-card p {
    margin: 6px 0;
    color: #444;
    font-size: 14px;
  }
  .card-basic {
    background-color: #e3f2fd; /* 淡藍色 */
  }
  .card-member {
    background-color: #e8f5e9; /* 淡綠色 */
  }
  .card-referral {
    background-color: #f3e5f5; /* 淡紫色 */
  }