.products-detail {
  padding: 30px 0;
}

/* 左边 */
.products-detail .lt-nav {
  margin-bottom: 30px;
}

.products-detail .top-group {
  padding: 19px 0 17px;
  border-radius: 5px;
  border: 1px solid #707070;
  margin-bottom: 15px;
}

.products-detail .nav-title {
  font-size: 18px;
  padding-left: 20px;
  padding-right: 20px;
  font-family: 'Roboto-B';
  margin-bottom: 8px;
}

.products-detail .pdt-nav {
  margin-top: 10px;
}

.products-detail .pdt-nav li a {
  display: block;
  padding: 7px 20px;
  font-family: 'Roboto-B';
}

.products-detail .pdt-nav li.active a {
  color: #fff;
  background: #333333;
}

/* 筛选 */
.products-detail .filter {
  padding: 35px 25px 30px 30px;
  border-radius: 5px;
  border: 1px solid #333;
}

.products-detail .filter-title {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  font-family: 'Roboto-B';
}

.products-detail .filter-title span {
  font-size: 14px;
  font-family: 'Roboto-R';
  text-decoration: underline;
  cursor: pointer;
}

.products-detail .filter-tit {
  font-family: 'Roboto-M';
  margin-bottom: 10px;
}

.products-detail .filter-list li:not(:last-child) {
  margin-bottom: 5px;
}

.products-detail .nav-open {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: 'Roboto-B';
  font-size: 18px;
  cursor: pointer;
}

.products-detail .nav-open i {
  width: 14px;
  height: 14px;
  position: relative;
}

.products-detail .nav-open i::before,
.products-detail .nav-open i::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: #333;
}

.products-detail .nav-open i::before {
  width: 100%;
  height: 2px;
}

.products-detail .nav-open i::after {
  width: 2px;
  height: 100%;
}

.products-detail .nav-open.active i::after {
  height: 0;
}

.products-detail .filter-select {
  margin-top: 12px;
  margin-bottom: 12px;
  padding-top: 9px;
  border-top: 1px solid #9A9A9A;
  border-bottom: 1px solid #9A9A9A;
  display: none;
}

.products-detail .filter-select label {
  display: inline-block;
  width: 49%;
  color: #999;
  font-weight: normal;
  margin-bottom: 9px;
  cursor: pointer;
}

.products-detail .filter-select label input {
  margin-right: 5px;
}


/* 右边 */
.products-detail .lt {
  margin-bottom: 20px;
}

.products-detail .swiper-container {
  max-width: 375px;
  box-shadow: 3px 6px 12px 1px rgba(0, 0, 0, .16);
}

.products-detail .swiper-slide img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.products-detail .swiper-pagination {
  display: block;
}

.products-detail .swiper-pagination-bullet {
  width: 15px;
  height: 15px;
  background: #999;
  opacity: 1;
}

.products-detail .swiper-pagination-bullet-active {
  background: #333;
}

.products-detail .title {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 10px;
}

.products-detail .title p {
  line-height: 1;
  text-align: left;
  margin-right: 30px;
}

.products-detail .title span {
  font-weight: normal;
  position: relative;
  padding-left: 15px;
  font-family: "Roboto-R";
  transform: translateY(-8px);
}

.products-detail .title span::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  transform: translateY(25%);
  z-index: -1;
  width: 112px;
  height: 22px;
  background: var(--style-color);
}

.products-detail .sub-params {
  color: #666;
}

.products-detail .top-wrap .btn {
  width: 130px;
  color: #fff;
  margin-top: 13px;
  padding: 4px 15px;
  border-radius: 20px;
  background: var(--style-color);
}

.products-detail .info {
  margin-top: 20px;
}

.products-detail .info h2,
.products-detail .info h3 {
  font-size: 20px;
  margin-top: 20px;
  margin-bottom: 10px;
  font-weight: normal;
  text-align: left;
  font-family: "Roboto-M";
}

.products-detail .info h3 {
  font-size: 18px;
}

.products-detail .info>h2:first-child,
.products-detail .info>h3:first-child {
  margin-top: 0;
}

.products-detail .info p {
  line-height: 1.8;
}

.products-detail .info ul {
  list-style: none;
}

.products-detail .info ul li {
  padding-left: 26px;
  position: relative;
}

.products-detail .info ul li::before {
  content: '';
  position: absolute;
  top: 4px;
  left: 0;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  border: 4px solid var(--style-color);
}

.products-detail .info ul li:not(:last-child) {
  margin-bottom: 7px;
}

.products-detail .params-wrap {
  margin-top: 20px;
}

.products-detail .tab-list {
  justify-content: flex-start;
  position: relative;
}

.products-detail .tab-list::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 4px;
  transform: translateY(50%);
  width: 100%;
  height: 0;
  border: 1px dashed #999;
}

.products-detail .tab-list li {
  color: #999;
  margin-bottom: 0;
  cursor: pointer;
}

.products-detail .tab-list li:not(:last-child) {
  margin-right: 60px;
}

.products-detail .tab-list li.active {
  color: #333;
}

.products-detail .round {
  display: block;
  width: 8px;
  height: 8px;
  margin: 7px auto 0;
  border-radius: 50%;
  background: #999;
  position: relative;
  z-index: 1;
}

.products-detail .tab-list li.active .round {
  background: var(--style-color);
}

.products-detail table tr {
  border: none;
}

.products-detail table tr>*:first-child {
  text-align: left;
  padding-right: 8px;
}

.products-detail table tr>*:last-child {
  text-align: right;
  padding-left: 8px;
}

.products-detail table tr:not(:last-child) {
  border-bottom: 2px solid #999;
}

.products-detail table th, .products-detail table td {
  padding: 10px 0;
  line-height: 1.5;
  border: none;
}

.products-detail .params:not(:last-child) {
  border-bottom: 2px solid #999;
}

.products-detail .params span:last-child {
  margin-left: 15px;
}

.products-detail .params-img {
  margin-top: 20px;
}

.products-detail .params-img img {
  border-radius: 20px;
}

.products-detail .dowmload-wrap {
  margin-top: 20px;
}

.products-detail .download-title {
  font-family: "Roboto-M";
  margin-bottom: 20px;
}

.products-detail .download-list:not(:last-child) {
  margin-bottom: 30px;
}

.products-detail .download-tit {
  padding: 10px 15px;
  background: #F9F9F9;
  font-family: "Roboto-M";
  cursor: pointer;
}

.products-detail .download-item {
  margin-top: 15px;
  padding-left: 15px;
  display: none;
}

.products-detail .item:first-child {
  margin-bottom: 15px;
}

.products-detail .item p:last-child {
  color: #999;
  margin-top: 10px;
}

.products-detail .btn-wrap {
  margin-top: 15px;
}

.products-detail .btn-wrap .btn {
  color: #fff;
  padding: 7px 15px;
  background: #333;
  border-radius: 30px;
}

@media (min-width: 640px) {
  .products-detail .item-wrap {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
  }

  .products-detail .item {
    flex: 0 0 50%;
    max-width: 50%;
  }

  .products-detail .btn-wrap {
    flex: 0 0 100%;
    max-width: 100%;
  }
}

@media (min-width: 768px) {
  .products-detail .item {
    flex: 0 0 36%;
    max-width: 36%;
  }

  .products-detail .btn-wrap {
    flex: 0 0 28%;
    max-width: 28%;
    text-align: right;
    margin-top: 0;
  }
}

@media (min-width: 992px) {
  .products-detail .pdt-group {
    display: flex;
    align-items: flex-start;
  }

  .products-detail .lt-nav {
    position: sticky;
    position: -webkit-sticky;
    top: 80px;
    width: 288px;
    max-height: calc(100vh - 100px);
    margin-bottom: 0;
    display: flex;
    flex-direction: column;
  }

  .products-detail .filter {
    flex: 1;
    overflow-y: auto;
  }

  .products-detail .rt-content {
    flex: 0 0 calc(100% - 288px);
    max-width: calc(100% - 288px);
    padding-left: 30px;
  }
}

@media (min-width: 1200px) {
  .products-detail {
    padding: 60px 0;
  }

  .products-detail .lt-nav {
    top: 100px;
    max-height: calc(100vh - 120px);
  }

  .products-detail .rt-content {
    padding-left: 50px;
  }

  .products-detail .top-wrap {
    display: flex;
  }

  .products-detail .lt {
    width: 375px;
    margin-bottom: 0;
  }

  .products-detail .rt {
    flex: 1;
    padding-left: 30px;
  }

  .products-detail .title {
    margin-bottom: 17px;
  }

  .products-detail .top-wrap .btn:hover {
    background: var(--sub-color);
  }

  .products-detail .info {
    margin-top: 40px;
  }

  .products-detail .info h2,
  .products-detail .info h3 {
    margin-top: 32px;
    margin-bottom: 22px;
  }

  .products-detail .params-wrap {
    margin-top: 40px;
    display: flex;
    align-items: center;
  }

  .products-detail .tab-back {
    flex: 0 0 54%;
    max-width: 54%;
    padding-right: 13px;
  }

  .products-detail .tab-list li:not(:last-child) {
    margin-right: 111px;
  }

  .products-detail .params-img {
    flex: 0 0 46%;
    max-width: 46%;
    padding-left: 13px;
    margin-top: 0;
  }

  .products-detail .dowmload-wrap {
    margin-top: 58px;
  }

  .products-detail .download-title {
    margin-bottom: 37px;
  }

  .products-detail .download-list:not(:last-child) {
    margin-bottom: 40px;
  }

  .products-detail .download-tit {
    padding: 15px 40px;
  }

  .products-detail .download-item {
    margin-top: 26px;
    padding-left: 40px;
  }

  .products-detail .item p:last-child {
    margin-top: 18px;
  }

  .products-detail .btn-wrap .btn {
    width: 180px;
    padding-top: 14px;
    padding-bottom: 14px;
  }

  .products-detail .btn-wrap .btn:hover {
    background: var(--style-color);
  }
}

@media (min-width: 1440px) {
  .products-detail {
    padding: 75px 0 65px;
  }

  .products-detail .rt {
    padding-left: 40px;
  }

  .products-detail .info {
    margin-top: 54px;
  }

  .products-detail .params-wrap {
    margin-top: 55px;
  }
}


/* recommend */
.recommend {
  padding: 30px 0;
  background: #F9F9F9;
}

.recommend .title {
  text-align: left;
  font-weight: normal;
  font-family: "Roboto-M";
  margin-bottom: 27px;
}

.recommend .swiper-slide {
  padding-top: 27px;
  border-radius: 20px;
  text-align: center;
  overflow: hidden;
}

.recommend .pdt-tit {
  display: inline-block;
  padding: 2px 10px;
  font-family: "Roboto-B";
  border-bottom: 1px solid #333;
}

.recommend img {
  width: 100%;
  aspect-ratio: 1 / 1;
}

@media (min-width: 1200px) {
  .recommend {
    padding: 60px 0;
  }

  .recommend .pdt-tit {
    padding-left: 0;
    padding-right: 0;
    margin-left: 25px;
    margin-right: 25px;
    transition: all .3s;
  }

  .recommend .swiper-slide:hover .pdt-tit {
    margin-left: 0;
    margin-right: 0;
    padding-left: 25px;
    padding-right: 25px;
    background: var(--style-color);
    border-bottom-color: transparent;
  }
}

@media (min-width: 1440px) {
  .recommend {
    padding-bottom: 75px;
  }
}