.banner {
  position: relative;
  width: 100%;
}

.banner-main::after {
  content: '';
  display: block;
  height: 100%;
  width: 100%;
  position: absolute;
  left: 0;
  top: 0;
  background: rgba(0, 0, 0, 0.13);
}

.banner-main {
  padding-top: 16%;
  position: relative;
  z-index: 1;
}

.banner-main-img {
  width: 100%;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
  z-index: -1;
}

.banner-main-title {
  font-size: 54px;
  font-family: SourceHanSansCN-Normal, SourceHanSansCN;
  font-weight: 400;
  color: #FFFFFF;
  text-align: center;
}

.banner-main-play {
  text-align: center;
  margin-top: 100px;
}

.banner-main-play img {
  width: 38px;
  height: 38px;
}

.banner::after {
  content: '';
  display: block;
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.3);
  z-index: 0;
}