.content {
  min-height: 892px;
}
.content li {
  float: left;
  width: 284px;
  height: 162px;
  box-shadow: 6px 8px 40px 0 rgba(0, 0, 0, 0.1);
  border: 2px solid #FFFFFF;
  margin-right: 21px;
  margin-top: 30px;
  border-radius: 8px;
  overflow: hidden;
  transition: all .3s;
}
.content li:nth-child(4n) {
  margin-right: 0;
}
.content li:nth-child(1),
.content li:nth-child(2),
.content li:nth-child(3),
.content li:nth-child(4) {
  margin-top: 0;
}
.content li:hover {
  transform: translateY(-10px);
}
.content li:hover a .imgbox img {
  transform: scale(1.3);
}
.content li a {
  position: relative;
  width: 100%;
  height: 100%;
}
.content li a .imgbox {
  width: 100%;
  height: 100%;
  border-radius: 8px;
  overflow: hidden;
}
.content li a .imgbox img {
  width: 100%;
  height: 100%;
  transition: all .3s;
}
.content li a .bottom {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(0, 0, 0, 0.4);
  border-radius: 0px 0px 8px 8px;
  font-size: 14px;
  font-family: PingFang SC, PingFang SC;
  font-weight: 500;
  color: #FFFFFF;
  line-height: 16px;
  text-align: center;
  padding: 8px 0;
}