.input-prepend.input-append input {
  font-size: 24px;
  padding-top: 11px;
  padding-bottom: 11px;
  width: 100px;
  text-align: right;
}
.stock_error {
  color: #DB5656;
}
.main_img {
  width: 100%;
  margin-bottom: 20px;
}
.main_img img {
  aspect-ratio: 1 / 1;
}
#product {
  width: 100%;
}
#product form {
  display: flex;
  justify-content: space-between;
  margin-bottom: 120px;
}
.product-img {
  width: 46%;
}
.product-info {
  width: 50%;
}
.main_img {
  width: 100%;
}
.main_img img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  object-position: center;
}
.sub_img ul {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  gap: 20px;
  width: 100%;
}
.sub_img ul li img {
  cursor: pointer;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  object-position: center;
}
.select {
  filter: brightness(0.8);
}

.product-info_inner {
  width: 85%;
  margin: 0 auto;
}
.product-name {
  margin: 10px 0 20px;
}
.product-name__en {
  font-weight: 500!important;
  font-size: 22px;
  margin-bottom: 6px;
  line-height: 1;
}
.product-name__ja {
  font-size: 24px;
  line-height: 1.4;
}
.product-desc {
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 40px;
}
.product-price {
  font-size: 22px;
  line-height: 1.4;
  margin-bottom: 40px;
}
.product-price span{
  font-size: 15px;
}
.product-order {
  margin-bottom: 40px;
}
.product-order_wrap {
  display: flex;
  justify-content: space-between;
  box-sizing: border-box;
  gap: 20px 30px;
  align-items: center;
  flex-wrap: wrap;
}
.order-num {
  align-items: center;
}
.order-num p {
  display: inline-block;
  font-size: 15px;
  padding-right: 16px;
}
.order-num_btn {
  display: inline-block;
  border: 1px solid #4d4d4d;
  padding: 8px 16px;
  border-radius: 5px;
}
.order-num_btn button,#product_num {
  outline: none;
  border: none;
  padding: 0;
  font-family: "Zen Kaku Gothic New", sans-serif!important;
  font-size: 16px!important;
  height: 24px;
  line-height: 24px;
}
.order-num_btn button {
  background-color: #fff;
}
#product_num {
  text-align: center;
  width: 80px;
  margin-bottom: 0;
}
.order_btn {
  flex-grow: 1;
}
.order_btn .btn {
  width: 100%;
  padding: 12px;
  border: none;
  background-color: #eabc00;
  display: flex;
  justify-content: center;
  column-gap: 10px;
  border-radius: 5px;
  outline: none;
}
.order_btn .btn img {
  width:25px;
  height:25px;
}
.order_btn .btn p {
  color: #fff;
  font-family: "Zen Kaku Gothic New", sans-serif!important;
  font-size: 15px!important;
  height: 25px;
  line-height: 25px;
}
.btn.disabled, .btn[disabled] {
  opacity: 1!important;
  background-color: #a4a4a4!important;
}
.order_notes {
  font-size: 13px;
  line-height: 1.5;
  padding-bottom: 40px;
  border-bottom: 1px solid #4d4d4d;
  margin-bottom: 40px;
}
.order_notes ul li {
  margin-bottom: 8px;
}
.order_notes ul li:last-child {
  margin-bottom: 0;
}
.order_notes p {
  font-size: 13px;
  line-height: 1.6;
  text-indent: -1em;
  padding-left: 1em;
}
.order_notes a {
  border-bottom: 1px solid #4d4d4d;
}
.order_notes a:hover {
  border-bottom: 1px solid #a4a4a4;
}
.product-details {
  font-size: 15px;
  line-height: 1.5;
  margin-bottom: 30px;
}
.product-details span{
  font-weight: 500;
}
.how-to_link {
  margin-bottom: 60px;
}
.how-to_link-txt {
  font-size: 15px;
  line-height: 1.5;
  padding: 20px 30px;
  background-color: #eeeeee;
  border-radius: 20px;
  margin-bottom: 20px;
  position: relative;
}
.how-to_link-txt::after {
  content: "";
  position: absolute;
  width: 0;
  height: 0;
  border-style: solid;
  border-right: 9px solid transparent;
  border-left: 9px solid transparent;
  border-top: 30px solid #eeeeee;
  border-bottom: 0;
  transform: rotate(-28deg);
  bottom: -18px;
  left: 36%;
}
.how-to_link-txt a {
  border-bottom: 1px solid #4d4d4d;
}
.how-to_link-txt a:hover {
  border-bottom: 1px solid #a4a4a4;
}
.how-to_link img {
  width: 165px;
  margin: 0 auto;
  display: block;
}
.product_back-link-btn {
  align-items: center;
  display: flex;
}
.product_back-link a {
  display: inline-block;
}
.product_back-link a:hover {
  color: #4d4d4d;
  opacity: 0.7;
}
.product_back-link img {
  width: 32px;
  transform: scale(-1, 1);
}
.product_back-link p {
  font-size: 18px;
  display: inline-block;
  margin-left: 12px;
}

/* ¾¦ÉÊÈó¸ø³« */
.product-undisclosed {
  margin:200px auto;
}
.product-undisclosed-txt {
  font-size: 18px;
  text-align: center;
  margin-bottom: 60px;
}
.product-undisclosed .product_back-link {
  text-align: center;
}

@media (max-width: 768px) {
  /* ~768px */
  #product form {
  flex-direction: column;
  margin-bottom: 30px;
}
  #product .wrapper-medium {
  width: 90%;
}
.product-img {
  width: 100%;
}
.product-info {
  width: 100%;
}
  .sub_img ul {
  gap: 14px;
}
.main_img {
  margin-bottom: 14px;
}
.product-info_inner {
  width: 94%;
  margin: 0 auto;
}
.product-name {
  margin: 30px 0 20px;
}
.product-name__en {
  font-size: 18px;
}
.product-name__ja {
  font-size: 20px;
}
.product-desc {
  font-size: 14px;
  margin-bottom: 20px;
}
.product-price {
  font-size: 20px;
}
.product-price span{
  font-size: 14px;
}
  .product-order_wrap {
  display: flex;
  gap: 16px;
}
.order_notes {
  padding-bottom: 30px;
  margin-bottom: 30px;
}
.product-details {
  font-size: 14px;
  margin-bottom: 40px;
}
.how-to_link {
  margin-bottom: 50px;
}
.how-to_link-txt {
  font-size: 14px;
  padding: 20px;
}
.how-to_link img {
  max-width: 165px;
  width: 45%;
}
  .product_back-link {
  text-align: center;
}
.product_back-link p {
  margin-left: 10px;
}
}
@media (max-width: 480px) {
  /* ~480px */
  .product-order {
  margin-bottom: 16px;
}
.product-order_wrap {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
}
.order_btn {
  flex-grow: 0;
  width: 100%;
}
}