.wrap_main {
  position: relative;
}

.main_content {
  margin: 0 auto 60px;
}

ul.item_tab {
  float: left;
}

.Min1T_top input[type="text"] {
  background: rgba(247, 247, 247, 1) url(/Sites/Uploaded/UserUpLoad/20200724/20200724180137.png) no-repeat 10px center;
  border: 1px solid rgba(232, 232, 232, 1);
  border-radius: 3px;
  width: 215px;
  height: 50px;
  box-sizing: border-box;
  padding-left: 40px;
}

ul.item_tab li {
  width: 390px;
  height: 55px;
  padding: 16px 35px;
  background: #f4f4f4;
  background-size: 100% 100%;
  color: #2D4C5E;
  font-size: 22px;
  line-height: 23px;
  float: left;
  text-align: center;
  box-sizing: border-box;
}

ul.item_tab li.liv_2 {
  margin: 0 15px;
}

.main_content .pages {
  float: none;
  text-align: center;
}

.pages .ae-pagination {
  text-align: center;
}

.pages .page_number_div {
  float: none;
}

ul.item_tab li.active {
  background: #45b796;
  background-size: 100% 100%;
  color: #fff;
}

ul.item_tab li.active a {
  color: #fff;
}

ul.item_tab li a {
  display: inline-block;
  font-size: 18px;
  font-family: "PingFang SC";
  font-weight: 500;
  color: rgba(51, 51, 51, 1);
  width: 100%;
  height: 100%;
}

.video_list_item {
  width: 380px;
  height: 400px;
  float: left;
  border: 1px solid rgba(238, 238, 238, 1);
  box-sizing: border-box;
  margin-top: 30px;
  box-shadow: 0px 10px 20px #ddd;
  position: relative;
  background: rgba(255, 255, 255, 1);
}

.video_list_item:nth-child(3n-1) {
  margin: 30px 30px 0;
}

.video_list_item .videoImg {
  display: block;
  width: 100%;
  height: 220px;
  overflow: hidden;
}

.video_list_item .videoImg img {
  display: block;
  width: 100%;
  height: auto;
}

.video_list_item .more {
  position: absolute;
  right: 12px;
  color: #999;
  font-size: 12px;
  bottom: 82px;
}

.video_list_item .more:hover {
  font-weight: bold;
}

h2.title_video {
  overflow: hidden;
  margin: 0 12px;
  padding: 22px 0;
  border-bottom: 1px solid #EEEEEE;
  border-top: 1px solid #EEEEEE;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

h2.title_video span.VideoCount {
  color: #999;
  font-size: 14px;
  display: flex;
  align-items: center;
}

h2.title_video span.VideoCount img {
  width: 18px;
  margin-right: 5px;
}

.title_video span {
  float: left;
  font-size: 18px;
  font-family: "PingFang SC";
  font-weight: bold;
  color: rgba(34, 34, 34, 1);
  line-height: 24px;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
  max-width: 240px;
}

.video_list2 {
  padding: 0 12px;
}

.video_RightDetail {
  float: left;
  width: 245px;
}

.video_list2 .video_Right .video_img {
  width: 90px;
  height: 50px;
  display: block;
  float: left;
  margin-right: 15px;
  position: relative;
}

.video_list2 .video_Right .video_img img {
  width: 100%;
  height: 50px;
}

.video_list2 .video_Right .video_img::after {
  width: 90px;
  height: 50px;
  display: block;
  content: '';
  background: rgba(0, 0, 0, 0.3);
  position: absolute;
  top: 0;
}

.video_list2 .video_Right .video_img .playVideo {
  width: 20px;
  height: 20px;
  position: absolute;
  left: 50%;
  top: 50%;
  margin-top: -10px;
  margin-left: -10px;
  z-index: 1;
}

.video_list2 .video_Right .video_RightDetail h2 a {
  font-size: 14px;
  font-weight: bold;
  color: #333;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
  display: block;
}

.video_list2 .video_Right .video_RightDetail .playCount {
  font-size: 12px;
  color: #999;
  margin-top: 5px;
}

.video_list2 .video_Right .video_RightDetail .playCount .video_author {
  float: left;
  margin-right: 15px;
}

.video_list2 .video_Right .video_RightDetail .playCount .play_time {
  float: left;
  margin-right: 15px;
}

.video_Left {
  font-size: 12px;
  color: #333;
  margin: 10px 0;
}

.relatedDoc .video_list_item {
  width: 277px;
  margin-right: 30px;
  height: 330px;
}

.relatedDoc .video_list_item:nth-child(3n-1) {
  margin-left: 0;
}

.relatedDoc .video_list_item:nth-child(4n+4) {
  margin-right: 0;
}

.relatedDoc .video_RightDetail {
  width: 130px;
}

.relatedDoc .video_list_item .videoImg {
  display: block;
  width: 85px;
  height: 85px;
  overflow: hidden;
  border-radius: 50%;
  margin: 25px auto 15px;
}

.relatedDoc .video_list_item .docName {
  font-size: 18px;
  font-weight: bold;
  margin-right: 10px;
  display: inline-block;
}

.relatedDoc .video_list_item .docProfessionalTitle {
  font-size: 16px;
}

.relatedDoc .video_list_item .depName {
  font-size: 16px;
  color: #999;
  font-weight: bold;
  text-align: center;
  margin-bottom: 7px;
}

.relatedDoc .video_list_item .docTop {
  text-align: center;
  margin-bottom: 7px;
}

.relatedDoc .docTops {
  border-bottom: 1px solid #eee;
  height: 194px;
}

.docTops span.VideoCount {
  text-align: center;
  font-size: 14px;
  color: #999;
  display: flex;
  align-items: center;
  justify-content: center;
}

.docTops span.VideoCount img {
  width: 18px;
  margin-right: 5px;
}

.btn_change {
  margin-top: 30px;
}

.btn_change a {
  display: inline-block;
  width: 90px;
  height: 30px;
  line-height: 30px;
  text-align: center;
  color: #333;
  margin-right: 30px;
}

.btn_change a.active {
  color: #fff;
  background: #264658;
}

@media screen and (max-width:768px) {
  ul.item_tab {
 float: none;
 display: flex;
  }

  ul.item_tab li {
 flex: 1;
 height: 0.5rem;
 padding: 0rem 0.3rem;
 font-size: 0.22rem;
 line-height: 0.5rem;
  }

  ul.item_tab li a {
 font-size: 0.22rem;
  }

  .video_list_item {
 width: 100%;
 margin-top: 0.3rem;
  }

  .video_list_item:nth-child(3n-1) {
 margin: 0.3rem 0 0;
  }

  .relatedDoc .video_list_item {
 width: 100%;
 margin-right: 0;
 height: 330px;
  }
}

@media screen and (max-width:420px) {
  .video_RightDetail {
 float: left;
 width: 175px;
  }
}