.main .content {
  width: 994px;
  float: left;
  min-height: 892px;
}
.main .content li {
  float: left;
  box-shadow: 6px 8px 30px 0px rgba(0, 0, 0, 0.14);
  border-radius: 10px 10px 10px 10px;
  border: 2px solid #FFFFFF;
  overflow: hidden;
  margin-right: 20px;
  margin-top: 32px;
  transition: all .3s;
}
.main .content li:nth-child(1),
.main .content li:nth-child(2),
.main .content li:nth-child(3) {
  margin-top: 0;
}
.main .content li:nth-child(3n) {
  margin-right: 0;
}
.main .content li:hover {
  transform: translateY(-10px);
}
.main .content li:hover a .bottom {
  color: #E52926;
}
.main .content li a .videobox {
  position: relative;
  border-radius: 8px;
  width: 314px;
  height: 138px;
}
.main .content li a .videobox .pause {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(0, 0, 0, 0.7);
  border-radius: 7px 7px 7px 7px;
  background-color: rgba(0, 0, 0, 0.7);
  padding: 7px 7px;
}
.main .content li a .videobox .pause img {
  display: block;
  width: 24px;
}
.main .content li a .bottom {
  padding: 14px;
  font-size: 14px;
  font-family: PingFang SC, PingFang SC;
  font-weight: 500;
  color: #333333;
  line-height: 16px;
}