.bpd{
    margin-top: .6rem;
}
    .chadiv {
        width: 100%;
        height: 1.5rem;
       
        background-repeat: no-repeat;
        background-size: cover;
    }

    .chatitle {
        width: 100%;
        height: 100%;
        text-align: center;
        box-sizing: border-box;
        padding: 0.55rem 0;

        background-color: rgba(0, 0, 0, 0.5);
    }

    .chatitle span {
        display: block;
        font-size: .18rem;
        color: #fff;
        font-weight: bold;
    }

    .detection {
        width: 100%;
        height: 1.98rem;
        box-sizing: border-box;
        padding: 0.75rem 0;
        text-align: center;
        line-height: .24rem;
    }

    .detection span {
        display: block;
        font-size: .15rem;
        color: #333;
    }

    .baby {
        font-size: .18rem;
        color: #3E3E3E;
        font-weight: bold;
    }

    .btnbuy {
        width: 1.4rem;
        height: .44rem;
        background: #43B97C;
        border-radius: .44rem;
        margin: 0 auto;
        text-align: center;
        line-height: .44rem;
        
    }
    .btnbuy a{
        color: #fff;
        font-size: .16rem;
    }
    .authtip{
        position: fixed;
        bottom: .3rem;
        width: 100%;
        height: .3rem;
        line-height: .3rem;
        text-align: center;
        color: #333333;
        font-size: .12rem;
    }
    .leftdv a span{
        font-size: .26rem;
    }