.join-wrap {
  margin-top: 95px;
}
.join-wrap .page-box {
  position: relative;
  padding-left:290px;
  box-sizing: border-box;
  overflow: hidden;
}
.join-wrap .page-box .left-page {
  position:absolute;
  left: 0;
  transition: top .3s;
  width: 250px;
}
.join-wrap .page-box .left-page.active{
  position:fixed;top: 140px;
}
.join-wrap .page-box .left-page:before {
  position: absolute;
  content: '';
  right: 0;
  top: 0;
  bottom: -20px;
  width: 1px;
  background: #e5e5e5;
}
.join-wrap .page-box .left-page .title-box {
  margin-bottom: 50px;
}
.join-wrap .page-box .left-page .title-box p {
  position: relative;
  font-size: 24px;font-family:'SourceHanSansCN';
  color: #666;font-weight:300;
  line-height: 1.6;
  padding-bottom: 30px;
  margin-bottom: 50px;
}
.join-wrap .page-box .left-page .title-box p:before {
  position: absolute;
  content: '';
  width: 25px;
  height: 2px;
  background: #323234;
  bottom: 0;
  left: 0;
}
.join-wrap .page-box .left-page .title-box h3 {
  font-size: 30px;
  color: #080408;
}
.join-wrap .page-box .left-page .title-box h3 span {
  display: inline-block;
  margin-left: 15px;
  margin-right: 15px;
}
.join-wrap .page-box .left-page ul li {
  margin-bottom: 25px;
}
.join-wrap .page-box .left-page ul li span {
  font-size: 16px;
  color: #808080;
  cursor: pointer;
}
.join-wrap .page-box .left-page ul li.active span {
  color: #f8c300;
  font-weight: 700;
}



.join-wrap .page-box .session_1 {
  position: relative;
  padding-left: 30px;
  padding-right: 30px;
  box-sizing: border-box;
  padding-bottom:80px;
}
.join-wrap .page-box .session_1 .row {
  margin-left: -12px;
  margin-right: -12px;
}
.join-wrap .page-box .session_1 .col-md-2 {
  float: left;
  width:25%;
  padding-left: 12px;
  padding-right: 12px;
  box-sizing: border-box;
  margin-bottom:24px;
}
.join-wrap .page-box .session_1 .item-box {
  position: relative;
  height:330px;
 background:#f5f5f5;
}
.join-wrap .page-box .session_1 .item-box .title-box .icon-box {
  margin-bottom:22px;
}
.join-wrap .page-box .session_1 .item-box .title-box h3{
    font-size: 24px;margin-bottom:10px;
} 
.join-wrap .page-box .session_1 .item-box .title-box p {
   font-size:16px;
  font-weight:300;font-family:'SourceHanSansCN';
  color: #383431;
  padding-bottom:22px;
  line-height: 1;position:relative;
}
.join-wrap .page-box .session_1 .item-box .title-box p:before{
  content:'';bottom:0;left:50%;transform:translateX(-50%);
  width:25px;height:2px;background:#000;position:absolute;
}
.join-wrap .page-box .session_1 .item-box .title-box span {
  font-size: 30px;margin-top:20px;
  color:#383431;display:block;
}
.join-wrap .page-box .session_1 .item-box .des-box {
  position: absolute;
  opacity: 0;
  top: 50%;
  transform: translateY(-50%);
  padding-left: 15px;
  padding-right: 15px;
}
.join-wrap .page-box .session_1 .item-box .des-box .title-box {
  text-align: center;
  transition: all .3s;
  transform: translateY(-20px);
}
.join-wrap .page-box .session_1 .item-box .des-box .title-box h3{
  color:#fff;
}
.join-wrap .page-box .session_1 .item-box .des-box .title-box p {
  color: #fff;
}
.join-wrap .page-box .session_1 .item-box .des-box .title-box p:before{
    background:#fff;
}
.join-wrap .page-box .session_1 .item-box .des-box .info-box {
  margin-top: 20px;
  transition: all .3s;
  padding-left:25px;padding-right:25px;
  transform: translateY(20px);
}
.join-wrap .page-box .session_1 .item-box .des-box .info-box p {
  font-size: 16px;
  color: #fff;
  line-height: 1.6;text-align:justify;
}
.join-wrap .page-box .session_1 .item-box .center-box {
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  text-align: center;
  padding-left: 15px;
  padding-right: 15px;
  box-sizing: border-box;
}
.join-wrap .page-box .session_1 .item-box:hover,
.join-wrap .page-box .session_1 .item-box.active {
  background: #f8c300;
}
.join-wrap .page-box .session_1 .col-md-2:nth-child(1) .item-box:hover,
.join-wrap .page-box .session_1 .col-md-2:nth-child(1) .item-box.active,
.join-wrap .page-box .session_1 .col-md-2:nth-child(1) .item-box{
  background:transparent;
}
.join-wrap .page-box .session_1 .item-box:hover .center-box,
.join-wrap .page-box .session_1 .item-box.active .center-box {
  opacity: 0;
}
.join-wrap .page-box .session_1 .item-box:hover .des-box,
.join-wrap .page-box .session_1 .item-box.active .des-box {
  opacity: 1;
}
.join-wrap .page-box .session_1 .item-box:hover .des-box .title-box,
.join-wrap .page-box .session_1 .item-box.active .des-box .title-box {
  transform: translateY(0);
}
.join-wrap .page-box .session_1 .item-box:hover .des-box .info-box,
.join-wrap .page-box .session_1 .item-box.active .des-box .info-box {
  transform: translateY(0);
}
.join-wrap .page-box .session_1 .col-md-2:nth-child(1) .item-box{
  padding-left:40px;padding-top:110px;box-sizing:border-box;
}
.join-wrap .page-box .session_1 .col-md-2:nth-child(1) .item-box h3{
  font-size:30px;margin-bottom:10px;
}
.join-wrap .page-box .session_1 .col-md-2:nth-child(1) .item-box p{
   font-size:24px;color:#ccc;
}



.join-wrap .page-box .session_2 .centent-box {
  height:600px;
  background: url(../images/img_18.png);
  padding-top:60px;
  box-sizing: border-box;
  padding-left: 40px;
  padding-right: 40px;
}
.join-wrap .page-box .session_2 .centent-box .item-box {
  float: left;
  width: 25%;
  height: 230px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-sizing: border-box;
  border-left: none;
  border-bottom: none;
  text-align:left;
  padding-top: 34px;
  padding-left:30px;
  padding-right:30px;
}
.join-wrap .page-box .session_2 .centent-box .item-box:nth-child(1){
  border-top:none;padding-top:0;padding-left:0;
}
.join-wrap .page-box .session_2 .centent-box .item-box:nth-child(5) {
  border-left: 1px solid rgba(255, 255, 255, 0.3);
}
.join-wrap .page-box .session_2 .centent-box .item-box:nth-child(6),
.join-wrap .page-box .session_2 .centent-box .item-box:nth-child(7),
.join-wrap .page-box .session_2 .centent-box .item-box:nth-child(8),
.join-wrap .page-box .session_2 .centent-box .item-box:nth-child(5) {
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
}
.join-wrap .page-box .session_2 .centent-box .item-box .icon-box {
  height: 64px;
  line-height: 64px;
}
.join-wrap .page-box .session_2 .centent-box .item-box .icon-box img {
  vertical-align: top;
}
.join-wrap .page-box .session_2 .centent-box .item-box .txt-box {
  color: #fff;
}
.join-wrap .page-box .session_2 .centent-box .item-box .txt-box h3 {
  font-weight: 400;
  font-size:24px;
  margin-bottom: 4px;
}
.join-wrap .page-box .session_2 .centent-box .item-box .txt-box h3 span{
  font-size:36px;margin-right:20px;padding-bottom:10px;border-bottom:1px solid #ccc;
}
.join-wrap .page-box .session_2 .centent-box .item-box .txt-box p {
  font-size:16px;margin-top:30px;
  color:#ccc;line-height:1.8;
}
.join-wrap .page-box .session_2 .centent-box .item-box:nth-child(1) {
  text-align:left;
}
.join-wrap .page-box .session_2 .centent-box .item-box:nth-child(1) h3{
  font-size:30px;margin-bottom:10px;
}
.join-wrap .page-box .session_2 .centent-box .item-box:nth-child(1) p{
  font-size:24px;
}


.join-wrap .session_3{
  margin-top:68px;
}
.join-wrap .session_3 .title-box h3{
  font-size:30px;
}
.join-wrap .session_3 .title-box p{
  font-size:24px;color:#ccc;margin-top:10px;
}
.join-wrap .session_3 .all-box {
  background: #fff;
  padding-bottom: 30px;
  padding-left: 20px;margin-top:20px;
  box-sizing: border-box;
}
.join-wrap .session_3 .all-box .img-box {
  float:right;
}
.join-wrap .session_3 .all-box .txt-box{
  width:670px;padding-top:40px;
}
.join-wrap .session_3 .all-box .txt-box dl {
  margin-bottom: 50px;
}
.join-wrap .session_3 .all-box .txt-box dt {
  margin-bottom:35px;
  font-size:20px;
  color: #383431;
  font-weight: 700;
}
.join-wrap .session_3 .all-box .txt-box dd {
  line-height: 2;padding-left:20px;
  position:relative;margin-left:20px;
  color: #383431;
  font-size: 16px;
}
.join-wrap .session_3 .all-box .txt-box dd span{
    left:0;top:0;position:absolute;
}


.join-wrap .session_4{
   margin-top:68px;padding-bottom:100px;
}
.join-wrap .session_4 .title-box h3{
  font-size:30px;
}
.join-wrap .session_4 .title-box p{
  font-size:24px;color:#ccc;margin-top:10px;
}
.join-wrap .session_4 .center-box {
  padding-top: 35px;
  position: relative;
  padding-bottom: 40px;
  margin-top:45px;
}
.join-wrap .session_4 .center-box .bg-box {
  height: 640px;
  background: #383431;
}
.join-wrap .session_4 .center-box .img-box {
  top: 0;
  position: absolute;
}
.join-wrap .session_4 .center-box .img-box img {
  position: relative;
  z-index: 11;
}
.join-wrap .session_4 .center-box .img-box:before {
  top: 10px;
  bottom: -10px;
  left: 10px;
  right: -10px;
  content: '';
  position: absolute;
  border: 1px solid #f8c300;
  box-sizing: border-box;
}
.join-wrap .session_4 .center-box .txt-box {
  float: right;
  margin-top:44px;
  margin-right: 170px;
}
.join-wrap .session_4 .center-box ul {
  width: 476px;
  height: 544px;
  padding-left: 40px;
  box-sizing: border-box;
  background: url(../images/icon_30.png) left center;
}
.join-wrap .session_4 .center-box ul li {
  color: #fff;
  font-size: 20px;
  line-height: 3;
}

@media screen and (max-width: 1700px) {
  .join-wrap .page-box .session_1 .item-box .title-box h3,
   .join-wrap .page-box .session_1 .item-box .des-box .title-box h3{
    font-size:20px;
   }
   .join-wrap .page-box .session_2 .centent-box .item-box .txt-box h3 span{
    font-size:30px;margin-right:10px;
   }
   .join-wrap .page-box .session_2 .centent-box .item-box .txt-box h3{
    font-size:18px;
   }
   .join-wrap .page-box .session_2 .centent-box .item-box:nth-child(1) .txt-box h3{
    font-size:24px;
   }
   .join-wrap .session_3 .all-box .txt-box{
   width:45%;padding-top:0;
   }
   .join-wrap .session_3 .all-box .txt-box dt{
    margin-bottom:20px;
   }
   .join-wrap .session_3 .all-box .txt-box dl{
    margin-bottom:30px;
   }
   .join-wrap .session_3 .all-box .txt-box dd{
    font-size:14px;
   }
   .join-wrap .session_4 .center-box .txt-box{
    margin-right:-20px;
   }
   .join-wrap .session_4 .center-box ul li{
    line-height:3.8;font-size:16px;
   }
}

@media screen and (max-width: 1440px) {
}