.card-container {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin: 30px 0;
}

.card-item {
  flex: 0 0 calc(33.333% - 14px);
  background: #f9f9f9;
  border: 2px solid #ddd;
  padding: 15px;
  box-sizing: border-box;
  text-align: center;
transition: transform 0.3s ease, box-shadow 0.3s ease;
  border-radius: 8px;
}

.card-item:hover {
  transform: translateY(-5px); /* ボックスだけ浮く */
  box-shadow: 0 6px 15px rgba(0,0,0,.15);
}

.card-item img {
  display: block;
  margin: 15px auto;
  width: 60%;
  height: auto;
}

.card-item p {
  font-size: 14px;
  line-height: 1.6;
  text-align: left;
}

/* タブレット */
@media screen and (max-width: 768px) {
  .card-item {
    flex: 0 0 calc(50% - 10px);
  }
}

/* スマホ */
@media screen and (max-width: 480px) {
  .card-item {
    flex: 0 0 100%;
  }
}