.xchf-product{max-width: 640px;margin: 0 auto;}
.back-nav-fixed {
    background: #62c1c5;
    color: white;
    display: flex;
    -webkit-box-pack: justify;
    -webkit-box-align: center;
    justify-content: space-between;
    position: fixed;
    z-index: 222;
    top: 0;
    left: 0;
    right: 0;
    max-width: 640px;
    margin: 0 auto;
    padding: 0;
    line-height: 45px;
}

.radio-event{
    width: 100%;
    display: block;
    height: auto;
    padding: 11px;
    font-size: 16px;
    color: #62c1c5;
    background: white;
    border: solid #62c1c5 1px;
    border-radius: 4px;
    margin: 0 auto;
    margin-bottom: 16px;
    background: #62c1c5;
    color: white;
}
.btn-box{width: 100%;
    display: block;
    height: auto;
    padding: 11px;
    font-size: 16px;
    color: #62c1c5;
    background: white;
    border: solid #62c1c5 1px;
    border-radius: 4px;
    margin: 0 auto;
    margin-bottom: 16px;}
.v-view{
    padding: 12px;
}


.btn-charge{
    margin:12px;display: block;height: 38px;line-height: 38px;text-align: center;color:white;border-radius: 4px;
}