.mask_box{
    width: 100%;
    height: 100%;
    position: fixed;
    top: 0;
    left: 0;
    background: rgba(0,0,0,0.5);
}
.popup_box{
    width: 90%;
    min-height: 5rem;
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    background: #fff;
    border-radius:  0.2rem 0.2rem 0 0;
    font-size: 0.3rem;
    padding: 0.3rem;
    box-sizing: border-box;
    text-align: center;
}
.circle{
    position: absolute;
    right: -0.25rem;
    top:-0.25rem;
    width: 0.5rem;
    height: 0.5rem;
    background: deepskyblue;
    padding: 0.05rem;
    -webkit-border-radius: 50%;
    -moz-border-radius: 50%;
    border-radius: 50%;
}
.sub_circle{
    width: 100%;
    height: 100%;
    background: #ffffff;
    -webkit-border-radius: 50%;
    -moz-border-radius: 50%;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.icon-cha1{
    font-size: 0.3rem!important;
    color: deepskyblue;
}
.title{
    font-size: 0.35rem;
    font-weight: bold;
}
.content{
    margin-top: 0.15rem;
    font-size: 0.3rem;
}