.content {
  display: -webkit-box;
  display: flex;
  padding: 30px 0 50px;
}
.content .content-l {
  -webkit-box-flex: 1;
  flex: 1;
  width: 0;
  margin-right: 30px;
}
.content .content-l .select-content {
  width: 100%;
  min-height: 124px;
  background: #ffffff;
  -webkit-box-shadow: 0px 2px 6px 0px rgba(0, 19, 92, 0.1);
  box-shadow: 0px 2px 6px 0px rgba(0, 19, 92, 0.1);
  border-radius: 5px;
  padding: 25px 20px;
}
.content .content-l .select-content dl {
  display: -webkit-box;
  display: flex;
  -webkit-box-align: start;
  align-items: flex-start;
}
.content .content-l .select-content dl:nth-of-type(1) {
  margin-bottom: 20px;
}
.content .content-l .select-content dl dt {
  width: 48px;
  font-size: 16px;
  font-weight: 500;
  color: #333333;
  margin-right: 20px;
  height: 34px;
  line-height: 34px;
  text-align: center;
}
.content .content-l .select-content dl dd {
  -webkit-box-flex: 1;
  flex: 1;
  width: 0;
  display: -webkit-box;
  display: flex;
  flex-wrap: wrap;
}
.content .content-l .select-content dl dd .case a {
  display: inline-block;
  height: 32px;
  line-height: 32px;
  padding: 0 18px;
  font-size: 14px;
  color: #333333;
  border-radius: 6px;
  -webkit-transition: all 0.3s;
  transition: all 0.3s;
}
.content .content-l .select-content dl dd .case a:hover {
  color: #007aff;
}
.content .content-l .select-content dl dd .case .active-case-a {
  background: #d2e8ff;
  font-weight: 500;
  color: #007aff;
}
.content .content-l .sort-content {
  width: 100%;
  height: 97px;
  background: #ffffff;
  border-radius: 5px;
  margin: 30px 0;
  padding: 0 15px;
  display: -webkit-box;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  flex-direction: column;
}
.content .content-l .sort-content > div {
  display: -webkit-box;
  display: flex;
  -webkit-box-align: center;
  align-items: center;
  -webkit-box-flex: 1;
  flex: 1;
}
.content .content-l .sort-content > div > div {
  font-size: 14px;
  cursor: pointer;
  -webkit-transition: all 0.3s;
  transition: all 0.3s;
}
.content .content-l .sort-content .sort-t {
  border-bottom: 1px solid #d9eaff;
}
.content .content-l .sort-content .sort-t > div {
  color: #666666;
  margin-right: 50px;
}
.content .content-l .sort-content .sort-t .active {
  color: #007aff;
  font-weight: bold;
}
.content .content-l .sort-content .sort-b {
  color: #999999;
}
.content .content-l .sort-content .sort-b > div {
  margin-right: 54px;
  display: -webkit-box;
  display: flex;
  -webkit-box-align: center;
  align-items: center;
}
.content .content-l .sort-content .sort-b > div i {
  margin-left: 8px;
}
.content .content-l .sort-content .sort-b .active {
  color: #409cff;
  font-weight: bold;
}
.content .content-l .list-content {
  display: -webkit-box;
  display: flex;
  flex-wrap: wrap;
}
.content .content-l .list-content .video-item {
  margin-right: 16px;
}
.content .content-l .list-content .video-item:nth-of-type(4n) {
  margin-right: 0;
}
.content .content-l .paging {
  padding: 35px 0 0;
}
.content .content-r {
  width: 240px;
  height: 1103px;
  background: #ffffff;
  -webkit-box-shadow: 0px 2px 6px 0px rgba(0, 19, 92, 0.1);
  box-shadow: 0px 2px 6px 0px rgba(0, 19, 92, 0.1);
  border-radius: 5px;
}
.content .content-r .head {
  display: -webkit-box;
  display: flex;
  -webkit-box-align: center;
  align-items: center;
  padding: 0 10px;
  height: 54px;
}
.content .content-r .head i {
  margin-right: 8px;
  font-size: 22px;
  color: #ffb163;
}
.content .content-r .line {
  width: 240px;
  height: 2px;
  background: -webkit-gradient(linear, left top, right top, from(#409cff), to(rgba(255, 255, 255, 0.8)));
  background: -webkit-linear-gradient(left, #409cff 0%, rgba(255, 255, 255, 0.8) 100%);
  background: linear-gradient(90deg, #409cff 0%, rgba(255, 255, 255, 0.8) 100%);
  opacity: 0.24;
}
.content .content-r .recommend {
  padding: 16px 10px 0;
}
.content .content-r .recommend .video-item {
  -webkit-box-shadow: unset;
  box-shadow: unset;
  margin-bottom: 15px;
}
.video-item {
  width: 220px;
  height: 244px;
  margin-right: 20px;
}
.video-item:nth-of-type(4n) {
  margin-right: 0;
}
.video-item .info {
  padding: 0 10px;
}
.video-item .info h5 {
  margin: 10px 0;
}
.video-item .info .subject {
  display: -webkit-box;
  display: flex;
  -webkit-box-align: center;
  align-items: center;
  -webkit-box-pack: justify;
  justify-content: space-between;
}
.video-item .info .subject > p span {
  font-size: 12px;
  color: #666666;
}
.video-item .info .subject > p i {
  color: #d8d8d8;
}
.video-item .info .subject > span {
  font-size: 12px;
  color: #fff;
  display: inline-block;
  width: 72px;
  height: 21px;
  border-radius: 4px;
  line-height: 23px;
  text-align: center;
}
.video-item .info .subject > span.xkyk {
  background: #61b47d;
}
.video-item .info .subject > span.ptty {
  background: #00a8ec;
}
.video-item .info .info-b {
  margin-top: 10px;
}
.video-item .info .info-b p {
  line-height: 22px;
}