@media only screen and (max-width:1210px){
    .second-nav li{
        float:left;
        width:32%;
        margin-right:2%;
    }
    .second-nav li a{
        display:block;
        width:100%;
        height:486px;
    }
    .pro-menu{
        padding:55px 0;
    }
    .pro-menu li{
        width:15%;
        padding:0 2%;
    }
    .pro-menu li a{
        width:100%;
        background-size:100%;
        padding-top:100px;
    }
    .news-list li{
        width:32%;
        margin-right:2%;
    }
    .news-list li a{
        height:470px;
    }
    .news-list li a h1{
        font-size:12px;
        margin-top:15px;
        margin-left:15px;
    }
    .news-list li a h2{
        margin-left:15px;
        font-size:12px;
    }
    .news-list li:nth-child(1) a, .news-list li:nth-child(5) a{
        height:970px;
    }
    .news-list li:nth-child(1) a>div, .news-list li:nth-child(5) a>div{
        height:885px;
    }
    .news-list li:nth-child(4), .news-list li:nth-child(6){
        width:66%;
    }
}