.bg{
  width: 100vw;
  height: 100%;
  background: url(../images/bg.png?v=20220805)no-repeat;
  background-size: 100% 100%;
  position: relative;
}
.title{
  width: 9.78rem;
  position: absolute;
  left: 0.11rem;
  top: 1rem;
}
.bottom-bg{
  width: 10rem;
  height: 8.66rem;
  background: url(../images/bottom-bg.png)no-repeat;
  background-size: 100% 100%;
  position: absolute;
  bottom: 1rem;
  left: 0;
  z-index: 5;
}
.video-bg{
  width: 9.73rem;
  height: 15.33rem;
  background: url(../images/video-bg.png)no-repeat;
  background-size: 100% 100%;
  position: absolute;
  top: 1.8rem;
  left: 0.135rem;
  z-index: 2;
}
.video-go{
  width: 7.5rem;
  height: 13rem;
  position: absolute;
  border-radius: 0.4rem;
  top: 2.9rem;
  left: 1.24rem;
  overflow: hidden;
}
.video{
  width: 7.5rem;
  height: 13.3rem;
  position: absolute;
  border-radius: 0.4rem;
}
.down{
  width: 6.77rem;
  height: 1.7rem;
  background: url(../images/down.png)no-repeat;
  background-size: 100% 100%;
  left: 1.615rem;
  bottom: 2rem;
  position: absolute;
  z-index: 50;
  transform: scale(1);
  animation: downShow 0.9s linear infinite;
}

@keyframes downShow {
  0%{
    transform: scale(1);
  }
  70%{
    transform: scale(1.1);
  }
  100%{
    transform: scale(1);
  }
}