.derived-class {
  display: flex;
  margin: auto;
  padding: 20px 0 55px 0;
  width: 1200px;
}
.derived-class .nav_side {
  width: 200px;
  border-radius: 10px;
  overflow: hidden;
}
.derived-class .nav_side .nav_main {
  width: 100%;
}
.derived-class .nav_side .nav_main .nav_item {
  width: 100%;
  height: 70px;
  line-height: 70px;
  background-color: #fff;
}
.derived-class .nav_side .nav_main .nav_item .nav_link {
  position: relative;
  display: block;
  text-decoration: none;
  color: #333333;
  font-size: 20px;
  line-height: 70px;
  text-align: center;
}
.derived-class .nav_side .nav_main .nav_item .nav_link::after {
  content: "";
  display: block;
  position: absolute;
  top: 0;
  right: 0;
  width: 0;
  height: 100%;
}
.derived-class .nav_side .nav_main .nav_item:hover {
  background-color: #f4f2e7;
}
.derived-class .nav_side .nav_main .nav_item:hover .nav_link::after {
  border-right: solid 4px #fdd800;
}
.derived-class .nav_side .nav_main .nav_item_actived {
  background-color: #f4f2e7;
}
.derived-class .nav_side .nav_main .nav_item_actived .nav_link::after {
  border-right: solid 4px #fdd800;
}
.derived-class .right_content {
  flex: 1;
  margin-left: 20px;
  padding: 30px 25px;
  border-radius: 10px;
  overflow: hidden;
  background-color: #fff;
}
.derived-class .right_content .nav_top {
  display: flex;
  align-items: center;
  justify-content: space-around;
  border-bottom: 1px solid #ffae44;
}
.derived-class .right_content .nav_top .top_item {
  position: relative;
}
.derived-class .right_content .nav_top .top_item .top_link {
  display: block;
  text-align: center;
  padding-bottom: 20px;
}
.derived-class .right_content .nav_top .top_item .top_link .top_item_img {
  width: auto;
  height: 30px;
  margin-bottom: 5px;
}
.derived-class .right_content .nav_top .top_item .top_link .top_item_name {
  font-size: 17px;
  color: #5b5b5b;
  text-align: center;
}
.derived-class .right_content .nav_top .top_item .top_angel {
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -8px;
  width: 16px;
  height: 16px;
  background-color: #fff;
  border: 1px solid;
  border-color: #ffae44 #ffae44 transparent transparent;
  border-radius: 4px;
  transform: rotateZ(135deg);
  margin-top: -8px;
  opacity: 0;
}
.derived-class .right_content .nav_top .top_item:hover .top_link .top_item_name {
  color: #f7b80e;
}
.derived-class .right_content .nav_top .top_item_active .top_angel {
  opacity: 1;
}
.derived-class .right_content .nav_top .top_item_active .top_link .top_item_name {
  color: #f7b80e;
}
.derived-class .goods_example {
  display: flex;
  flex-wrap: wrap;
  margin-top: 38px;
}
.derived-class .goods_example .example_item {
  margin-bottom: 20px;
  margin-right: 27px;
  width: 290px;
  height: 395px;
  background-color: #f9f9f9;
  cursor: pointer;
}
.derived-class .goods_example .example_item:nth-child(3n) {
  margin-right: 0;
}
.derived-class .goods_example .example_item .goods_thumbnail {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 290px;
  height: 290px;
  overflow: hidden;
}
.derived-class .goods_example .example_item .goods_thumbnail > img {
  width: 100%;
  height: auto;
  transition: all 0.1s linear;
}
.derived-class .goods_example .example_item .goods_name {
  position: relative;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  text-overflow: ellipsis;
  overflow: hidden;
  margin: 10px 20px;
  font-size: 16px;
  color: #333333;
  text-align: left;
  height: 45px;
}
.derived-class .goods_example .example_item .goods_laybels {
  position: relative;
  margin: 0px 20px 0 20px;
  padding-top: 7px;
}
.derived-class .goods_example .example_item .goods_laybels::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  display: block;
  width: 100%;
  height: 0;
  border-top: 2px solid #cccccc;
}
.derived-class .goods_example .example_item .goods_laybels .laybel_item {
  font-size: 16px;
  color: #999999;
}
.derived-class .goods_example .example_item .goods_laybels .laybel_item + .laybel_item {
  margin-left: 5px;
}
.derived-class .goods_example .example_item:hover .goods_name {
  color: #fd9b00;
}
.derived-class .goods_example .example_item:hover .goods_thumbnail > img {
  transform: scale(1.2);
}
.derived-class .pagination {
  width: 100%;
}
.derived-class .banned:hover {
  cursor: no-drop;
}
.modal_box {
  z-index: 99;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  user-select: none;
  display: none;
  align-items: center;
  justify-content: center;
  overflow: auto;
  background-color: rgba(0, 0, 0, 0.8);
}
.modal_box .modal_main {
  position: relative;
  margin: auto;
  width: 950px;
  height: 725px;
  border-radius: 10px;
  background-color: #fff;
  padding: 50px;
  z-index: 15;
}
.modal_box .modal_main .modal_close {
  position: absolute;
  top: 0;
  right: -55px;
  cursor: pointer;
}
.modal_box .modal_main .modal_close > img {
  border: 0;
  max-width: 100%;
}
.modal_box .modal_main .product {
  display: flex;
}
.modal_box .modal_main .product .product_img {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 280px;
  height: 280px;
  overflow: hidden;
}
.modal_box .modal_main .product .product_img > img {
  width: 100%;
  height: auto;
}
.modal_box .modal_main .product .product_content {
  flex: 1;
  padding-left: 40px;
}
.modal_box .modal_main .product .product_content .product_title {
  font-family: SimHei;
  font-weight: bold;
  font-size: 18px;
  color: #333333;
}
.modal_box .modal_main .product .product_content .product_subTitle {
  margin-top: 10px;
  font-size: 13px;
  color: #666666;
}
.modal_box .modal_main .product .product_content .product_label {
  margin: 20px 0;
  display: flex;
  align-items: center;
}
.modal_box .modal_main .product .product_content .product_label > span {
  display: inline-block;
  vertical-align: middle;
  margin: 0 8px;
  padding: 5px 10px;
  background-color: #e6e6e6;
  border-radius: 3px;
  font-size: 13px;
  color: #666666;
}
.modal_box .modal_main .product .product_content .product_caption .caption_title {
  margin-top: 12px;
  font-size: 14px;
  font-weight: bold;
  color: #515151;
}
.modal_box .modal_main .product .product_content .product_caption .caption_text {
  margin-top: 10px;
  font-weight: normal;
  color: #979797;
  line-height: 22px;
}
.modal_box .modal_main .product_detail {
  margin-top: 20px;
}
.modal_box .modal_main .product_detail .detail_title {
  font-size: 14px;
  font-weight: bold;
  color: #575757;
}
.modal_box .modal_main .product_detail .detail_swiper {
  position: relative;
  margin: 20px 0 30px 0;
  overflow: hidden;
}
.modal_box .modal_main .product_detail .detail_swiper .detail_wrap {
  display: inline-block;
  white-space: nowrap;
  width: fit-content;
  margin-left: 0;
}
.modal_box .modal_main .product_detail .detail_swiper .detail_wrap > img {
  width: auto;
  height: 210px;
}
.modal_box .modal_main .slide_bar .bar_line {
  position: relative;
  background-color: #e9e9e9;
  height: 2px;
}
.modal_box .modal_main .slide_bar .bar_line .line_active {
  z-index: 3;
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: #f39800;
}
.modal_box .modal_main .slide_bar .bar_line .bar_circle {
  z-index: 4;
  position: absolute;
  width: 20px;
  height: 20px;
  top: -10px;
  background-color: #ffffff;
  border: 5px solid #f39800;
  border-radius: 100%;
  transition-duration: 0s;
  cursor: pointer;
}
.modal_box .modal_mask {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}