.footer_wrapper{
    position: relative;
    width: 100%;
    /*position: fixed;
    bottom: 0;*/
    margin-top: 10px;
    z-index: 10;
}
.btn_wrapper{
    width: 100%;
    overflow: hidden;
    padding: 1.2rem 0;
    background: #fff;
    box-shadow:2px 0px 3px #ccc;
}
.btn_pay_back{
    display: block;
    float: right;
    width: 7rem;
    height: 2.75rem;
    margin-right: 1.2rem;
    line-height: 2.75rem;
    text-decoration: none;
    font-size: 1.2rem;
}
.footer_tips{
    width: 100%;
    padding:1.1rem 0;
    background: #ff8200;
    color:#fff;
    text-align: center;
    font-size: 1.2rem;
}
.single_btn_wrapper{
    width: 100%;
    height: 4rem;
    overflow: hidden;
    background: #fff;
    box-shadow:2px 0px 3px #ccc;
}
.btn_pay{
    display: block;
    float: right;
    width: 11rem;
    height: 100%;
    background: #ff8505;
    line-height: 4rem;
    text-align: center;
    text-decoration: none;
    color:#fff;
    font-size: 1.4rem;
    
}
.price_wrapper{
    float: left;
    padding-left: 1.2rem;
    font-size: 1.2rem;
    line-height: 4rem;
}
.total_price_num{
    font-size: 2.4rem;
    color: #f46200;
}
.total_price_num_unit{
    padding: 0 0.3rem 0 1.2rem;
    font-size: 0.9rem;
}