@media (min-width:1920px) {
    html {
        font-size: 100px !important;
    }
}

@media (max-width: 1920px) {}

@media (max-width: 1680px) {}

@media (max-width: 1440px) {}

@media (max-width: 1366px) {}

@media (max-width: 1280px) {}

@media (min-width: 1200px) {}

@media (max-width: 1200px) {
    .header-content {
        padding: 0.3rem 0.5rem;
    }

    .header-logo img {
        width: 1.6rem;
        height: 0.91rem;
    }
}

@media (max-width: 1100px) {}

@media (max-width: 1024px) {}

@media screen and (max-width: 750px) {

    /* header */
    .header-model {
        padding: 0;
    }

    .header-nav-container {
        width: 0;
    }

    .header-content {
        padding: 0;
    }

    .header-model-top {
        padding: 0 0.3rem;
    }

    .header-right-box {
        display: none;
    }

    .header-nav {
        display: none;
    }

    .header-logo {
        width: 100%;
    }

    .top-menu-icon {
        display: block;
    }
    .zxly{
        width: 100%;
    }
    .lynr{
        height: 100px;
    }
    .tj{
        margin-right: 0;
        margin-bottom: 2%;
    }
    /* footer */
    .footer-model-box {
        padding: 0.41rem 0 0;
        justify-content: center;
        flex-wrap: wrap;
    }

    .footer-top-box {
        padding: 0.15rem;
    }

    .footer-top-btn {
        display: none;
    }

    .footer-left-box {
        display: none;
    }

    .footer-right-box {
        width: 100%;
        padding-left: 0;
    }

    .footer-right-box p {
        text-align: center;
        line-height: 0.45rem;
    }

    .footer-bottom-text p:first-of-type {
        display: none;
    }

    .footer-bottom-text p:last-of-type {
        display: block;
        text-align: center;
        line-height: 0.4rem;
    }

    /* page */

    .model-title-en {
        font-size: 0.52rem;
    }

    /* banner */

    .banner-slider-pagination {
        padding: 0 0 0.1rem 0.2rem;
    }

    /* about */

    .about-content {
        padding: 0.5rem;
        flex-wrap: wrap;
    }

    .about-content-left {
        width: 100%;
    }

    .about-content-right {
        width: 100%;
        padding: 0.5rem 0 0;
    }

    .about-content-imgs {
        width: 100%;
    }

    /* product */
    .product-model {
        padding: 0.89rem 0.3rem;
    }

    .product-list {
        padding: .5rem 0;
        display: grid;
        grid-template-columns: repeat(2, 47%);
        justify-content: space-between;
    }

    .product-list-item-img {
        width: 100%;
        height: auto;
    }

    .product-list li img {
        width: 100%;
        height: auto;
    }

    .about-imgs-item {
        width: 48%;
        height: auto;
    }

    /* engineering */
    .engineering-model {
        padding: 0.89rem 0.3rem;
    }

    .engineering-list-item-img {
        height: 2rem;
    }


    /* news */

    .news-model {
        padding: 0.89rem 0.3rem;
    }

    .news-box {
        flex-wrap: wrap;
    }

    .news-left-img {
        width:100%;
        margin-bottom: 0.3rem;
    }

    .news-list-content {
        width: 100%;
        padding-left: 0;
    }

    .news-list-content {
        grid-template-columns: repeat(1, 100%);
    }

    /* about us */

    .second-container {
        padding: 0.3rem;
        flex-wrap: wrap;
    }

    .second-container-nonav {
        padding: 0.3rem;
    }

    .second-page-left {
        width: 100%;
    }

    .page-left-nav {
        display: none;
    }

    .second-page-right {
        width: 100%;
        padding: 0.3rem;
    }


    .about-img-box {
        width: 100%;
        height: auto;
        margin: 0 auto;
    }

    .about-img-box img {
        width: 100%;
        height: auto;
    }

    /* product-list */

    .second-product-list {
        padding: .5rem 0;
        display: grid;
        grid-template-columns: repeat(2, 47%);
        justify-content: space-between;
    }

    .second-product-list .product-list-item-img {
        width: 100%;
        height: auto;
    }

    .second-product-list li img {
        width: 100%;
        height: auto;
    }

    .second-page-right {
        padding: 0.1rem;
    }

    .product-details-img {
        width: 100%;
        height: auto;
    }

    /* contact-us */
    .contact-logo-box {
        width: 80%;
    }

    .contact-us-address {
        width: 90%;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .contact-us-address .map {
        width: 100%;
        height: 3.91rem;
    }

    /* paging */
    .page-item,
    .page-num {
        padding: 0.08rem 0.15rem;
    }
}

@media screen and (max-width: 640px) {}

@media screen and (max-width: 639px) {}

@media screen and (max-width: 539px) {}

@media screen and (max-width: 479px) {}

@media screen and (max-width: 423px) {}

@media screen and (max-width: 414px) {}

@media screen and (max-width: 399px) {}

@media screen and (max-width: 383px) {}

@media screen and (max-width: 359px) {}

@media screen and (max-width: 319px) {}

@media screen and (max-width: 212px) {}