.bg{
    width: 10rem;
    height: 17.8rem;
    position: relative;
    margin: 0 auto;
}
.bg1{
    background: url(../images/bg1.png)no-repeat;
    background-size: 100% 100%
}
.bg2{
    background: url(../images/bg2.png)no-repeat;
    background-size: 100% 100%
}
.bg3{
    background: url(../images/bg3.png)no-repeat;
    background-size: 100% 100%
}
.top{
    width: 7.1rem;
    position: absolute;
    left: 1.45rem;
    top: 1rem;
}
.text{
    position: absolute;
    width: 3.62rem;
    left: 3.19rem;
    top: 16rem;
}
.down-btn{
    width: 6.8rem;
    height: 1.6rem;
    background: url(../images/downBtn.png) no-repeat;
    background-size: 100% 100%;
    position: absolute;
    left: 1.6rem;
    top: 2rem;
}
.bottom-bg{
    width: 10rem;
    height: 4.42rem;
    position: fixed;
    background: url(../images/bottom-bg.png)no-repeat;
    background-size: 100% 100%;
    bottom: 0;
    left: 50%;
    margin-left: -5rem;
    z-index: 500;
}
.new-bg{
    width: 10rem;
    height: 17.2rem;
    background: url(../images/bg.png)no-repeat;
    background-size: 100% 100%;
    background-position-y: -0.7rem;
    margin: 0 auto;
    position: relative;

}
.down-btn2{
    width: 6.34rem;
    height: 1.62rem;
    background: url(../images/downBtn2.png)no-repeat;
    background-size: 100% 100%;
    position: absolute;
    bottom: 1.2rem;
    z-index: 5;
    left: 50%;
    margin-left: -3.17rem;
}
.down-Go{
    animation: downGo 1s infinite;
}
@keyframes downGo{
    0%{
        transform: scale(1);
    }
    70%{
        transform: scale(1.05);
    }
    100%{
        transform: scale(1);
    }
}
.video-bg{
    width: 9.76rem;
    height: 15.13rem;
    position: absolute;
    bottom: 0;
    left: 0.12rem;
    z-index: 5;
}
.down-webp-box{
    width: 7.8rem;
    // background: yellow;
    height: 13.1rem;
    position: absolute;
    bottom: 1rem;
    left: 1.08rem;
    border-radius: 0.5rem;
    overflow: hidden;
    text-align: center;
    >img{
        width: 7.7rem;
        margin-top: -0.35rem;
    }
}