.video_class {
  width: 1200px;
  margin: auto;
  padding: 20px 20px;
  box-sizing: border-box;
  line-height: 25px;
}
.video_class .title {
  font-size: 22px;
  font-weight: bold;
}
.video_class .title .icon {
  display: inline-block;
  vertical-align: middle;
  width: 48px;
  height: 20px;
  background: url(../images/hot.png) no-repeat;
  margin-left: 2px;
}
.video_class .video_sort li {
  margin-left: 30px;
  font-size: 14px;
  color: #414244;
  line-height: 25px;
  cursor: pointer;
  position: relative;
}
.video_class .video_sort li a {
  font-size: 14px;
  color: #414244;
}
.video_class .video_sort li.active a {
  font-weight: bold;
}
.video_class .video_sort li.active::after {
  content: '';
  display: block;
  position: absolute;
  left: 50%;
  top: 100%;
  width: 24px;
  height: 3px;
  background: #6979FF;
  border-radius: 2px;
  -webkit-transform: translate(-50%, 8px);
  -moz-transform: translate(-50%, 8px);
  -ms-transform: translate(-50%, 8px);
  transform: translate(-50%, 8px);
}
/* 视频列表开始 */
.video_list {
  width: 1200px;
  margin: auto;
  padding: 0 20px;
  box-sizing: border-box;
  background: #fff;
}
.video_list .classification .title_box {
  padding-bottom: 12px;
}
.video_list .classification .title_box .class_title .text{
  font-size: 20px;
    color: #414244;
    font-weight: 600;
    line-height: 20px;
    vertical-align: middle;
}
.video_list .classification .title_box .class_title .icon {
  vertical-align: middle;
  width: 48px;
  height: 20px;
  background: url('../images/hot.png') no-repeat;
}
.video_list .classification .title_box .sort_title li{
  margin-left: 30px;
  font-size: 14px;
  color: #414244;
  line-height: 20px;
  cursor: pointer;
}
.video_list .classification .title_box .sort_title li.active {
  /* font-size: 16px; */
  font-weight: 600;
  color: #414244;
  position: relative;
}
.video_list .classification .title_box .sort_title li.active::after {
  content: '';
  display: block;
  position: absolute;
  left: 50%;
  top: 100%;
  width: 24px;
  height: 3px;
  background: #6979FF;
  border-radius: 2px;
  -webkit-transform: translate(-50%, 8px);
  -moz-transform: translate(-50%, 8px);
  -ms-transform: translate(-50%, 8px);
  transform: translate(-50%, 8px);
}
.video_list .classification .title_box .more {
  font-size: 14px;
  color: #414244;
  line-height: 22px;
}
.video_list .classification .title_box .more .icon {
  display: block;
  width: 5px;
  height: 5px;
  margin: 0;
  padding: 0;
  margin-left: 2px;
  margin-top: 7px;
  background: none;
  float: right;
  border-top: solid 1.5px #333;
  border-right: solid 1.5px #333;
  -webkit-transform: rotate(45deg);
  -moz-transform: rotate(45deg);
  -ms-transform: rotate(45deg);
  transform: rotate(45deg);
}
.video_list .classification .list_box {
  padding: 12px 0 12px;
}
.video_list .classification .list_box .item_box {
  display: none;
}
.video_list .classification .list_box .item_box.active {
  display: block;
}
.video_list .classification .list_box .item {
  width: 272px;
  background: #FFFFFF;
  box-shadow: 0px 0px 10px 1px rgba(0, 0, 0, 0.1);
  border-radius: 6px;
  margin-right: 24px;
  overflow: hidden;
  margin-bottom: 15px;
  cursor: pointer;
}
.video_list .classification .list_box .item:nth-child(4n) {
  margin-right: 0px;
}
.video_list .classification .list_box .item .img_box{
  width: 272px;
  height: 135px;
}
.video_list .classification .list_box .item .img_box img {
  width: 100%;
  height: 100%;
  vertical-align: middle;
}
.video_list .classification .list_box .item .text_box {
  padding: 10px 15px;
  background: #fff;
}
.video_list .classification .list_box .item .text_box .title {
  font-size: 14px;
  color: #333333;
  line-height: 20px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.video_list .classification .list_box .item .text_box .information {
  margin-top: 10px;
}
.video_list .classification .list_box .item .text_box .information .label {
  color: #FF3E39;
  font-size: 13px;
  line-height: 20px;
}
.video_list .classification .list_box .item .text_box .information .lockdoc {
  font-size: 13px;
  color: #999999;
  line-height: 20px;
}
/* 视频列表结束 */