.down-page{ 
    background-color: #fff; 
    display: flex;
    flex-direction: column;
    justify-content: center;
    height: 100vh;
}

.top-box{
    position: absolute;
    top: 0.2rem;
    left: 0;
    font-size: .26rem;
    height: 0.8rem;
    line-height: .8rem;
    font-weight: bold;
}
.down-page img{
    max-width: 100%; 
    height: auto;
}

.img-app{
    margin-left: .5rem;
   
}
.img-app img{
    width: .80rem;
    margin-right: .2rem;  
    vertical-align: bottom;
}

.down-bg{
    margin-top: .34rem;
    display: flex;
    background-image: url(../images/down-page.png);
    background-size: 100% auto;
    flex-direction: column;
    align-items: center;
    background-position: center top;
    background-repeat: no-repeat;
}

.down-bg .d-one{
    width: 2.6rem;
    margin-bottom: .4rem;
}

.down-bg .d-two{
    margin-bottom: .45rem;
    width: 4.54rem;
}

.d-three{
    width: 4.5rem;
}

.down-link{
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    margin-top: -2.5rem;
}

.iphone{
    width: 4.8rem;
    margin-bottom: .2rem;
    height: .9rem;
    border-radius: .2rem;
    background-color: #E85952;
    line-height: .9rem;
    vertical-align: text-bottom; 
    color: #fff;
}

.iphone img,.an img{
    height: .4rem;
    vertical-align: text-bottom;
    margin-right: .35rem;
}

.an{
    width: 4.8rem;
    height: .9rem;
    border-radius: .2rem;
    background-color: #6898E6   ;
    line-height: .9rem;
    vertical-align: text-bottom; 
    color: #fff;
}