body{
    padding: 0;
    margin: 0;
    background-color: #fff;
}

.main{
    width: 80%;
    margin: 0 auto;
    padding-bottom: 30px;
}

.check_desc{
    font-size: 12px;
    text-decoration: none;
    color: #1ab394;
}

.banner{
    margin: 0 auto;
    margin-top: 30px;
}

.banner img{
    max-width: 100%;
    display: block;
}

.product_box{
    margin-top: 30px;
}

.product_logo img{
    max-width: 200px;
    display: block;
    border-radius: 8px;
    margin: 0 auto;
}

.product_info{
    padding: 0;
    margin: 0;
    font-size: 16px;
    text-align: center;
    margin-top: 10px;
    line-height: 25px;
    color: #383838;
}

.product_descr{
    font-size: 14px;
    line-height: 25px;
    color: #777;
}

.download_btn{
    display: block;
    height: 50px;
    line-height: 50px;
    text-align: center;
    border-radius: 8px;
    text-decoration: none;
    margin-top: 15px;
}

.ios_btn{
    background-color: #231f20;
    color: #fff;
}

.android_btn{
    background-color: #58bfbd;
    color: #fff;
}

.qrcode_list{
    padding: 0;
    margin: 0;
    list-style: none;
    box-sizing: border-box;
    margin-top: 30px;
}

.qrcode_list li{
    float: left;
    box-sizing: border-box;
    width: 48%;
    text-align: center;
    border: solid 1px #DCDCDC;
    font-size: 12px;
    line-height: 30px;
}

.qrcode_list li img{
    max-width: 100%;
    display: block;
    margin: 0 auto;
}