.desktop{
    color: #fff;
    background-color: #fff;
}
.desktop .fixed-bg{
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-image: url('img/cover.jpg');
    background-size: 100% auto;
    background-position: center;
    z-index: -1;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}
.desktop .fixed-bg .shadow{
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.3);
}
.desktop .fixed-bg video{
    object-fit: cover;
}

.desktop .fix-header{
    position: absolute;
    left: 0;
    top: 30px;
    width: 100%;
    display: flex;
    justify-content: space-around;
    align-items: center;
    z-index: 1;
}
.desktop .main{
    position: absolute;
    right: 13%;
    bottom: 30%;
    display: flex;
}
.desktop .main .left{
    font-size: 36px;
}
.desktop .main .logo{
    height: 114px;
    margin-right: 17px;

}
.desktop .main .center .app-name{
    margin: 0;
    font-size: 32px;
    font-weight: normal;
}
.desktop .main .center p{
    font-size: 24px;
    margin: 0;
}

.desktop .main .right{
    font-size: 20px;
    margin-left: 38px;
}
.desktop .main .qrcode-warp{
    font-size: 12px;
    color: #000;
    background-color: #fff;
    text-align: center;
    border-radius: 12px;
}
.desktop .main .qrcode-warp .text{
    margin-bottom: 10px;
}

.desktop .main .qrcode-warp .qrcode{
    width: 200px;
    height: 200px;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}
.desktop .main .qrcode-warp .qrcode .qrcode-logo{
    width: 30px;
    height: 30px;
    padding: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%);
    background-color: #fff;
}

.desktop .tips{
    position: absolute;
    width: 100%;
    text-align: center;
    left: 0;
    bottom: 10px;
    font-size: 12px;
}
.zhen{
    display: none;
}

/*????????????*/
.btn-down{
    display: inline-block;
    margin-top: 11px;
}
.download-btns{
    width: 177px!important;
}
.desktop .qrcode-warp.animation{
    animation-name: shadow;
    border:1px solid red;
    animation-duration: 0.5s;
    animation-iteration-count:2;
}