.pro_contet_box {
  display: flex;
}
.openoff_box_child{
  display: flex;
  justify-content: space-between;
}
.openoff {
  background-color: #eeeeee;
  padding: 20px 0;
  margin-bottom: 50px;
}
.openoff_box_child.on {
  display: flex;
}
.openoff_left {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-right: 3vw;
  flex: 0 0 45%;
  width: 45%;
}
.openoff_left h3 {
  font-size: 30px;
  font-weight: bold;
}
.openoff_left p {
  line-height: 2.1;
  margin-top: 5px;
}
.openoff_right {
  position: relative;
  flex: 0 0 50%;
  width: 50%;
  min-height: 600px;
}
.openoff_right img {
  display: block;
  min-height: 600px;
}
.openoff_right:hover:after {
  opacity: 1;
}
.pro_tx_child {
  margin-top: 50px;
  margin-bottom: 50px;
}
.pro_tx_child > li > span {
  display: flex;
  align-items: center;
  width: 50%;
  position: relative;
  cursor: pointer;
  border-bottom: 1px solid #333;
  margin-bottom: 10px;
  padding-bottom: 3px;
}
.pro_tx_child li span:after {
  font-family:
    Open Sans Arial,
    Helvetica,
    sans-serif;
  font-weight: bold;
  position: absolute;
  display: block;
  content: "+";
  right: 0;
  top: 50%;
  transform: translateY(-50%);
}
.pro_tx_child li span.on:after {
  content: "-";
  right: 2px;
}

.pro_tx_child li span img {
  margin-top: -3px;
  margin-right: 10px;
}
.pro_tx_content {
  display: none;
  margin-bottom: 40px;
  margin-top: 20px;
}
.pro_tx_content.on {
  display: block;
}

/* 滚动图 */
.pro_contet_box {
  display: flex;
  justify-content: space-between;
}
.pro_contet_box .pro_lt_left {
  flex: 0 0 50%;
  width: 50%;
}
.pro_contet_box .pro_lt_right {
  flex: 0 0 48%;
  width: 48%;
  height:585px;
   position: relative;
}
.pro_contet_box .pro_lt_right:after{
    display:block;
    position: absolute;
    content:'';
    width: 97.3%;
    height: 1px;
    background-color: #333;
    left: 2px;
    bottom: 2px;
}
.pro_lt_right_box .top {
  display: none;
  margin-bottom: 10px;
}
.pro_lt_right_box .top h3 {
  margin-bottom: 5px;
}
.pro_lt_right_box .top.on {
  display: block;
}
.pro_lt_bottom_box {
  display: flex;
  flex-wrap: wrap;
}


.pro_lt_bottom_box li {
  flex: 0 0 16%;
  width: 16%;
  margin-right: 10px;
  margin-bottom: 10px;
  border: 2px solid transparent;
  cursor: pointer;
}
.pro_lt_bottom_box li.on {
  border-color: rgba(0, 0, 0, 0.5);
}
.pro_lt_bottom_box li img {
  width: 100%;
  display: block;
}
.pro_lt_left_box {
  height: 575px;
  overflow: hidden;
  padding-left: 120px;
}
.pro_lt_left_box .swiper-pagination {
  position: absolute;
  left: 0px;
  top: 0%;
  right: auto;
  min-width: 80px;
  transform: translate(0, 0);
}
.pro_lt_left_box .swiper-pagination span {
  background-color: transparent;
  width: 80px;
  height: 120px;
  background-color: #f0f0f0;
  border-radius: 0;
  margin-top: 0;
  margin-bottom: 15px;
  opacity: 1;
}
.pro_lt_left {
  position: relative;
}
.pro_lt_left_box_min {
  width: 575px;
  position: absolute;
  left: 0;
  top: 0;
  width: 80px;
}
.pro_lt_left_box_min img {
  display: block;
  max-width: 100%;
}
.img-fluid,
.img-fliud {
  display: block;
  max-width: 100%;
}

.scrollDiv {
  width: 150px;
  height: 520px;
  min-height: 25px;
  line-height: 25px;
  overflow: hidden;
}
.scrollDiv li {
  width: 81px;
  padding-top: 6px;
  padding-bottom: 6px;
  cursor: pointer;
  vertical-align: bottom;
  letter-spacing: normal;
  overflow: hidden;
}
.scrollDiv li img {
  width: 81px;
  height: 113px;
  border: 1px solid #cccccc;
}
.pro_lt_left_btn {
  margin-left: 25px;
}
.big_img {
  width: 424px;
  height: 585px;
  margin-right: 30px;
  float: right;
  overflow: hidden;
  position: relative;
}
.big_img img {
  width: 424px;
  height: 585px;
}
.small_img {
  width: 81px;
  height: 585px;
  float: left;
}
.big_img .big_imgs_min,
.text_img img {
  display: none;
}
.big_img .big_imgs_min.on,
.text_img img.on {
  display: block;
}
.news_litst {
  display: flex;
  border-bottom: 1px solid #333;
}
.news_litst span {
  display: flex;
}
.news_litst span i,
.news_litst span b {
  font-style: normal;
}
.news_litst h3 {
  font-weight: bold;
}