@media screen and (max-width:599px) {

    body {
        overflow-x: hidden;
    }

    .top {
        width: 100vw;
        height: 100px;
    }

    .top__in {
        width: 90vw;
    }

    .br {
        width: 50vw;
    }

    .box {
        height: 630px;
        margin-top: -200px;
        width: 340px;
        position: relative;
    }

    .child {
        position: absolute;
        left: 0;
        bottom: 0;
        width: 90vw;
        /* margin-top: 1000px;
        margin-right: 500px; */
    }

    .bannerpc {
        display: none;
    }

}

@media screen and (min-width:600px) {
    .top {
        width: 100%;
        height: 50px;
        border: 0;
        /* cellspacing:0; */
    }

    .br {
        display: none;
    }

    .border {
        border: 0;

    }

    .bannersp {
        display: none;
    }


}