.form-section {
  width: 92%;
  max-width: 800px;
  margin: 0 auto; /* 中央寄せ */
}
.form-group {
  padding-top: 1em;
}
.image-label-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  width: 100%;
}

.image-label {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 30%;
  cursor: pointer;
  text-align: center;
}

@media (max-width: 768px) {
  .image-label {
    width: 45%; /* 2列 */
  }
}

@media (max-width: 480px) {
  .image-label {
    width: 90%; /* 1列 */
  }
}

.image-label input[type="checkbox"] {
  margin-bottom: 6px;
}

.image-label img {
  border: 2px solid transparent;
  transition: border 0.2s;
  width: 100%;
  height: auto;
}

.image-label input[type="checkbox"]:checked + img {
  border: 2px solid blue;
}

textarea {
  resize: vertical;
}