.header {
  z-index: 3; /* 確保 header 在 footer 之上 */
}

.container {
  width: 90%;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}
.row .card {
  width: 45%;
  margin: 30px auto;
  display: flex;
}

.card-body {
  width: 100%;
  margin: 10px auto;
  display: flex;
  flex-direction: column;
}

.item-info-wrap .btn {
  margin-right: 10px;
}

.form-check {
  position: absolute;
  top: 10px;
  right: 10px;
}

@media (max-width: 768px) {
  .row .card {
    width: 90%;
    margin: 20px auto;
  }
}