@media screen and (max-width: 700px) {
    .ph_n {
        display: none !important;
    }

    .col-sm-6 {
        width: 50%;
        max-width: 50%;
    }

    .home-features-title h3 {
        font-size: 18px;
    }

    .sz {
        display: none;
    }

    .pro .more {
        margin: auto;
    }

    .abouts .more {
        margin-bottom: 15px;
    }

    .pro .more {
        position: relative;
    }

    .pro .pro_con {
        margin: 10px 0;
    }

    .home-features-contents {
        padding: 15px 0;
    }

    .news .more {
        position: relative;
        margin: auto;
    }

    .news .row>div>a {
        padding: 15px;
    }

    .footer {
        background-size: inherit;
    }

    #popBox {
        width: 90% !important;
    }

    .com_name p {
        font-size: 24px !important;
    }

    .fs-sm-20 {
        font-size: 20px;
    }

    .fs-sm-30 {
        font-size: 30px;
    }

    .pc_lbt {
        display: none;
    }

    .ph_lbt {
        display: block !important;
    }

    /*字体大小*/
    .fs-sm-12 {
        font-size: .857rem;
    }

    .fs-sm-14 {
        font-size: 1rem;
    }

    .fs-sm-16 {
        font-size: 1.142rem;
    }

    .fs-sm-18 {
        font-size: 1.285rem;
    }

    .fs-sm-20 {
        font-size: 1.428rem;
    }

    .fs-sm-22 {
        font-size: 1.571rem;
    }

    .fs-sm-24 {
        font-size: 1.714rem;
    }

    .fs-sm-26 {
        font-size: 1.857rem;
    }

    .fs-sm-28 {
        font-size: 2rem;
    }

    .fs-sm-30 {
        font-size: 2.142rem;
    }

    .fs-sm-32 {
        font-size: 2.286rem;
    }

    .fs-sm-34 {
        font-size: 2.429rem;
    }

    .fs-sm-36 {
        font-size: 2.571rem;
    }

    .fs-sm-38 {
        font-size: 2.714rem;
    }

    .fs-sm-40 {
        font-size: 2.857rem;
    }

    .about_img {
        width: 100%;
    }
}