.industriesBox {
  max-width: 1200px;
  margin: auto;
  width: 100%;
  padding-top: 80px;
}
.industriesBox .line {
  overflow: hidden;
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  padding-bottom: 70px;
}
.industriesBox .line .png {
  width: 50%;
  height: 390px;
  overflow: hidden;
}
.industriesBox .line .png img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  margin: auto;
  transition: all 0.6s;
}
.industriesBox .line .png:hover img {
  transition: all 0.6s;
  transform: scale(1.1);
}
.industriesBox .line .contxt {
  width: 50%;
  padding-left: 147px;
  box-sizing: border-box;
}
.industriesBox .line .contxt .desc {
  padding-top: 32px;
  font-family: Source Han Sans SC, Source Han Sans SC;
  font-weight: 400;
  font-size: 21px;
  color: #000000;
  line-height: 25px;
  text-align: left;
  font-style: normal;
  text-transform: none;
  min-height: 214px;
}
.industriesBox .line .contxt .tit {
  font-family: Source Han Sans SC, Source Han Sans SC;
  font-weight: bold;
  font-size: 28px;
  color: #000000;
  line-height: 33px;
  text-align: left;
  font-style: normal;
  text-transform: none;
}
.industriesBox .line .contxt .show {
  padding-top: 31px;
  float: left;
  width: 109px;
}
.industriesBox .line .contxt .show img {
  display: block;
  width: 100%;
}
.efficiency .cases-con {
  overflow: hidden;
  width: 100%;
}
.efficiency .cases-con .cases-item::after {
  position: absolute;
  content: "";
  background: rgba(217, 217, 217, 0.44);
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
}
.efficiency .cases-con .cases-item {
  width: 49%;
  float: left;
  height: 380px;
  position: relative;
}
.efficiency .cases-con .cases-item .play-btn {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  z-index: 999;
}
.efficiency .cases-con .cases-item .play-btn i {
  display: block;
  width: 126px;
  height: 126px;
  background: transparent url('../images/play.png') no-repeat top scroll;
  background-size: 126px 126px;
}
.efficiency .cases-con .cases-item img {
  height: 380px;
  object-fit: cover;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.efficiency .cases-con .cases-item:nth-child(1) {
  margin-right: 2%;
}