.common-main {
  display: flex;
  flex-direction: column;
}
.video-con {
  flex: 1;
  padding: 16px;
}
.classify-ul .video-list {
  display: none;
}
.classify-ul .video-list:first-child {
  display: block;
}
.classify-ul .video-list li {
  width: 100%;
  margin-top: 12px;
}
.classify-ul .video-list a {
  display: block;
  background-color: #FFFFFF;
  border-radius: 8px;
}
.classify-ul .video-list .video-logo {
  width: 100%;
  height: 210px;
  border-radius: 8px 8px 0 0;
  position: relative;
}
.classify-ul .video-list .video-logo::after {
  content: '';
  width: 52px;
  height: 52px;
  background: url(../img/video_icon@2x.png) no-repeat;
  background-size: 100% 100%;
  border-radius: 50%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.classify-ul .video-list .video-logo img {
  border-radius: 12px 12px 0 0;
}
.classify-ul .video-list h4 {
  font-size: 14px;
  font-family: PingFang SC-Regular, PingFang SC;
  font-weight: 400;
  color: #333333;
  line-height: 21px;
  padding: 8px 12px;
}
.video-box {
  display: block;
  background-color: #FFFFFF;
  border-radius: 8px;
}
.video-box video {
  width: 100%;
  border-radius: 8px 8px 0 0;
}
.video-box h1 {
  font-size: 14px;
  font-family: PingFang SC-Regular, PingFang SC;
  font-weight: 400;
  color: #333333;
  line-height: 21px;
  padding: 8px 12px;
}
.video-box h4 {
  font-size: 14px;
  font-family: PingFang SC-Regular, PingFang SC;
  font-weight: 400;
  color: #333333;
  line-height: 21px;
  padding: 8px 12px;
}