.container {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  padding: 100rem 0;
}
.container-footer {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  border-top: 1rem solid #ccc;
  padding-top: 20rem;
  margin-top: 20rem;
}
.container-other {
  -webkit-box-flex: 1;
      -ms-flex: 1;
          flex: 1;
  line-height: 24rem;
}
.container-other div + div {
  margin-top: 10rem;
}
.container-other a {
  font-size: 16rem;
  color: #666;
}
.container-button {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  width: 180rem;
  height: 60rem;
  background-color: #138db1;
  color: white;
  margin-left: 60rem;
  font-size: 20rem;
  -ms-flex-negative: 0;
      flex-shrink: 0;
}
.container-button:hover {
  color: white;
}

@media screen and (max-width: 1200px) {
  .container {
    display: block;
    padding: 30rem 0;
  }
}
.product .info {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
}
.product-info {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
}
.product-title {
  font-size: 36rem;
  font-weight: bold;
  color: #138db1;
  line-height: 52rem;
  padding-bottom: 20rem;
  border-bottom: 1rem solid #ccc;
  margin-bottom: 20rem;
}
.product-data {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20rem;
}
.product-data-item {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  height: 40rem;
  background-color: #f3f3f3;
  padding: 0 20rem;
  font-size: 14rem;
}
.product-desc {
  font-size: 14rem;
  line-height: 30rem;
}
.product-desc-title {
  font-size: 18rem;
  line-height: 30rem;
  margin-top: 20rem;
}
.product-button {
  margin-top: auto;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: end;
      -ms-flex-pack: end;
          justify-content: flex-end;
}
.product-button-item {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  width: 200rem;
  height: 60rem;
  font-size: 20rem;
  background-color: #138db1;
  color: white;
}
.product-button-item:hover {
  color: white;
}
.product-button-item + .product-button-item {
  margin-left: 60rem;
  background-color: #ff9900;
}
.product-detail {
  white-space: pre-wrap;
  line-height: 30rem;
}
.product-tabs {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  height: 60rem;
  font-size: 20rem;
  position: relative;
  border-bottom: 1rem solid #138db1;
  color: white;
  padding-left: 60rem;
  margin-top: 60rem;
}
.product-tabs::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 200rem;
  background-color: #138db1;
  z-index: -1;
}
.product-table {
  width: 100%;
  margin-top: -40rem;
  margin-bottom: -40rem;
}
.product-table td {
  border: 1rem solid #ccc;
  padding: 15rem 20rem;
}
.product-table td:nth-child(2n-1) {
  background-color: #f3f3f3;
  font-weight: bold;
}
.product-recommend {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20rem;
  margin-top: 40rem;
}
.product-recommend-image {
  width: 100%;
  height: 320rem;
}
.product-recommend-title {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  height: 55rem;
  background-color: #f3f3f3;
  font-size: 16rem;
}

@media screen and (max-width: 1200px) {
  .product {
    margin-top: 30rem;
  }
  .product .info {
    display: block;
  }
  .product-title {
    font-size: 24rem;
    line-height: 30rem;
    padding-top: 10rem;
  }
  .product-button {
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    margin-top: 20rem;
  }
  .product-button-item + .product-button-item {
    margin-left: 20rem;
    background-color: #ff9900;
  }
  .product-recommend {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
  }
}
.cover {
  width: 560rem;
  margin-right: 40rem;
}
.cover-list {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  overflow: hidden;
}
.cover-wrapper {
  width: 100%;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
}
.cover-item {
  -ms-flex-negative: 0;
      flex-shrink: 0;
  width: 100%;
}
.cover-image {
  width: 100%;
  height: 380rem;
  -o-object-fit: cover;
     object-fit: cover;
}

@media screen and (max-width: 1200px) {
  .cover {
    width: 100%;
  }
  .cover-image {
    height: auto;
  }
  .image-item {
    height: 100rem;
  }
}
.image-list {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  overflow: hidden;
  margin-top: 10rem;
}
.image-list img {
  width: 100%;
}
.image-list .image-item {
  border: 1rem solid #eee;
}
.image-wrapper {
  width: 100%;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
}
.image-item {
  -ms-flex-negative: 0;
      flex-shrink: 0;
}
.image-item img {
  width: 100%;
  height: 120rem;
  -o-object-fit: cover;
     object-fit: cover;
}

.category {
  width: 340rem;
  margin-right: 40rem;
  -ms-flex-negative: 0;
      flex-shrink: 0;
}
.category-title {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  height: 100rem;
  width: 100%;
  background-color: #138db1;
  color: white;
  font-size: 42rem;
  font-weight: bold;
}
.category-item {
  font-size: 20rem;
}
.category-item-title {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  height: 65rem;
  padding: 0 30rem;
  border-bottom: 1rem solid #ccc;
  cursor: pointer;
}
.category-item-title::after {
  content: ">";
  margin-left: auto;
  -webkit-transition: -webkit-transform 0.3s ease-out;
  transition: -webkit-transform 0.3s ease-out;
  transition: transform 0.3s ease-out;
  transition: transform 0.3s ease-out, -webkit-transform 0.3s ease-out;
}
.category-item.expand .category-item-title {
  color: #138db1;
}
.category-item.expand .category-item-title::after {
  -webkit-transform: rotate(90deg);
          transform: rotate(90deg);
}
.category-item.active .category-sub {
  display: block;
}
.category-sub {
  display: none;
}
.category-sub-item {
  display: block;
  padding: 25rem 30rem;
  cursor: pointer;
  -webkit-transition: background-color 0.3s ease-out;
  transition: background-color 0.3s ease-out;
}
.category-sub-item:hover {
  background-color: #f3f3f3;
}

@media screen and (max-width: 1200px) {
  .category {
    width: 100%;
    margin-right: 0;
  }
  .category-title {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    height: 60rem;
    font-size: 28rem;
  }
  .category-item {
    font-size: 16rem;
  }
  .category-item-title {
    height: 50rem;
  }
  .category-sub-item {
    padding: 10rem 30rem;
  }
}