/*超大屏幕*/
@media screen and (min-width: 1900px) {
    .page_bg {
        height: 600px;
        background-size: 100% 600px;
    }
}

/*大屏幕*/
@media screen and (min-width: 769px) {
    .page_bg {
        height: 450px;
        background-size: 100% 450px;
    }

    .content {
        width: 900px;
        margin: 80px auto 0 auto;
        text-align: center;
    }

    .div_title {
        color: #00269a;
        font-size: 24px;
        font-weight: bold;
    }

    .div_detail {
        margin-top: 20px;
        font-size: 18px;
    }

    .col-left .div_detail_item {
        padding: 10px 0;
        /* width: 300px; */
        margin: 0 auto;
    }

    .col-right .div_detail_item {
        padding: 32px 0;
        /* width: 300px; */
        margin: 0 auto;
    }

    .div_bg_1 {
        background-color: #f0eeef;
    }

    .div_bg_2 {
        background-color: #dedede;
    }
}