@media (max-width: 1000px) {
    .nav{
        display: none;
    }
    .header{
        height: 50px;
    }
    .header-logo{
        width: 160px;
        height: 50px;
    }
    .header-logo img{
        width: 200px;
        height: 51px;
        margin-left: 0px;
    }
    .header-menu-toggle-icon{
        display: block;
    }
    .footer{
        padding-top:40px;
    }
    .footer-menu{
        display: none;
    }
    .footer-nav-head{
        display: none;
    }
    .footer-main{
        grid-template-columns:1fr;
    }
    .banner-item-head{
        padding-top:50px;
    }
    .banner-item-head-h1{
        font-size: 26px;
    }
    .banner-item-head-h2{
        font-size: 12px;
    }
    .banner-item-head-h3{
        font-size: 12px;
    }
    .banner-item img{
        height: 325px;
    }
    .section{
        padding:0 10px;
        padding-top: 40px;
    }
    .section-head{
        font-size: 24px;
    }
    .product-items{
        grid-template-columns:repeat(2, 1fr);
        column-gap:10px;
        row-gap: 10px;
        margin-bottom:20px;
    }
    .product-item-img img{
        height: auto;
    }
    .about{
        grid-template-columns: 1fr;
    }
    .about-img{
        display: none;
    }
    .about-main{
        padding: 20px;
    }
    .about-content{
        display:grid;
        justify-items: center;
        margin-left: 0px;
    }
    .about-content-head{
        font-size: 24px;
        text-align: center;
    }
    .case{
        grid-template-columns:repeat(4, 1fr);
        margin-bottom: 20px;
    }
    .case-item img{
        height: 80px;
    }
    .concat img{
        height: 325px;
    }
    .banner-inner-item-head{
        padding:0 40px;
        padding-top:50px;
    }
    .banner-inner-item img{
        height: 320px;
    }
    .product-page{
        grid-template-columns:1fr;
    }
    .product-page-img{
        display: none;
    }
    .product-page-content{
        margin-left: 10px;
        padding-bottom: 20px;
    }
    .product-page-content-head{
        text-align: center;
    }
    .about-page-youshi{
        grid-template-columns:1fr
    }
    .about-page-linian{
        grid-template-columns:1fr 1fr;
        row-gap:20px;
    }
    .about-page-jiazhi{
        grid-template-columns:1fr 1fr;
        row-gap:20px;
    }
    .contact-head2{
        margin-top:40px;
    }
    .contact-page{
        grid-template-columns:1fr;
    }
    .contact-page-main{
        padding-bottom:20px;
    }
}
@media (max-width: 414px) {
    .nav{
        display: none;
    }
    .header{
        height: 50px;
    }
    .header-logo{
        width: 160px;
        height: 50px;
    }
    .header-logo img{
        width: 200px;
        height: 51px;
        margin-left: 0px;
    }
    .header-menu-toggle-icon{
        display: block;
    }
    .footer{
        padding-top:40px;
    }
    .footer-menu{
        display: none;
    }
    .footer-nav-head{
        display: none;
    }
    .footer-main{
        grid-template-columns:1fr;
    }
    .banner-item-head{
        padding-top:50px;
    }
    .banner-item-head-h1{
        font-size: 26px;
    }
    .banner-item-head-h2{
        font-size: 12px;
    }
    .banner-item-head-h3{
        font-size: 12px;
    }
    .banner-item img{
        height: 325px;
    }
    .section{
        padding:0 10px;
        padding-top: 40px;
    }
    .section-head{
        font-size: 24px;
    }
    .product-items{
        grid-template-columns:repeat(2, 1fr);
        column-gap:10px;
        row-gap: 10px;
        margin-bottom:20px;
    }
    .product-item-img img{
        height: auto;
    }
    .about{
        grid-template-columns: 1fr;
    }
    .about-img{
        display: none;
    }
    .about-main{
        padding: 20px;
    }
    .about-content{
        display:grid;
        justify-items: center;
        margin-left: 0px;
    }
    .about-content-head{
        font-size: 24px;
        text-align: center;
    }
    .case{
        grid-template-columns:repeat(2, 1fr);
         margin-bottom: 20px;
    }
    .case-item img{
        height: 80px;
    }
    .concat img{
        height: 325px;
    }
    .banner-inner-item-head{
        padding:0 40px;
        padding-top:50px;
    }
    .banner-inner-item img{
        height: 320px;
    }
    .product-page{
        grid-template-columns:1fr;
    }
    .product-page-img{
        display: none;
    }
    .product-page-content{
        margin-left: 10px;
        padding-bottom: 20px;
    }
    .product-page-content-head{
        text-align: center;
    }
    .about-page-youshi{
        grid-template-columns:1fr
    }
    .about-page-linian{
        grid-template-columns:1fr;
        row-gap:20px;
    }
    .about-page-jiazhi{
        grid-template-columns:1fr 1fr;
        row-gap:20px;
    }
    .contact-head2{
        margin-top:40px;
    }
    .contact-page{
        grid-template-columns:1fr;
    }
    .contact-page-main{
        padding-bottom:20px;
    }
}