@media screen and (max-width:1120px) {
    .w1100 {
        width: 100%;
        padding: 0 20px;
        box-sizing: border-box;
    }

    .ml {
        float: none;
        width: 100%;
    }

    .mr {
        float: none;
        width: 100%;
    }

    .phone-col {
        float: none;
        width: 100%;
    }

    .col-menu {
        float: none;
        width: 100%;
    }

    .col-r {
        float: none;
        width: 100%;
    }

    .navbar-item {
        float: none;
    }

    .navbar-item {
        height: auto;
    }

    .sub-nav {
        position: static;
    }

    .sub-nav-item {
        background-color: rgba(255, 255, 255, 0.8);
        padding-left: 50px;
    }
}

@media screen and (max-width:900px) {
    .footer {
        font-size: 14px;
        line-height: 30px;
    }

    .footer span {
        display: block;
    }

    .foot-s {
        display: none !important;
    }

    .main1 {
        margin-top: 20px;
    }

    .article-title {
        font-size: 22px;
    }

}