/* 大屏 */
@media screen and (min-width: 800px){
    .nav-pc,.banner-pc,
    .advantage-pc,.product-pc,.process-pc,
    .about-pc,.strength-pc,
    .news-pc,
    .server-pc,.footer-pc,.link-pc,.serverBar-pc {
        display: block;
    }

    .nav-xs,.banner-xs,
    .product-xs,.process-xs,
    .about-xs,.strength-xs,
    .news-xs,
    .footer-xs {
        display: none;
    }
}

/* 小屏 */
@media screen and (max-width: 800px){
    .nav-pc,.banner-pc,
    .advantage-pc,.product-pc,.process-pc,
    .about-pc,.strength-pc,
    .news-pc,
    .server-pc,.footer-pc,.link-pc,.serverBar-pc {
        display: none;
    }
    
    .nav-xs,.banner-xs,
    .product-xs,.process-xs,
    .about-xs,.strength-xs,
    .news-xs,
    .footer-xs {
        display: block;
    }
}