@media only  screen  and (min-device-width : 320px) and (max-device-width : 767px) {

    .header{
        position: fixed;
    }
    .header .menus{
        display: none;
         width: 100vh;
        height: calc(100% - 70px);
        background: #000;
        position: fixed;
        top: 70px;
        left: 0;
        padding: 20px 0 50px 0;
        overflow: auto;
    }
    .menus .item{
        min-width: 100%;
        line-height: 60px;
        text-align: left;
    }
    .menus .item .one{
        font-size: 20px;
        padding-left: 15px;
    }
    .menus .item .child-list{
        position: relative;
        padding: 10px 0;
        flex-wrap: wrap;
        left: 0;
    }
    .child-list .child-link {
        padding: 10px 10px 10px 20px;
        font-size: 16px;
        width: 100%;
    }
    .child-nav{
        position: relative;
        top: 0;
        padding: 0;
    }
    .child-menu {
        display: flex;
        flex-wrap: wrap;
        width: 100%;
        padding: 0;
    }
    .product .child-box {
        min-width: 100%;
    }
    .child-menu .child-box {
        padding: 0;
        padding-left: 20px;
        text-align: left;
        cursor: pointer;
        margin-bottom: 20px;
    }
    .child-menu a.tit {
        font-size: 16px;
        padding-bottom: 0px;
    }
    .child-menu .list{
        padding-top: 15px;
    }
    .child-menu .list a{
        padding-left: 20px;
    }

    .header .search-header{
        display: none;
    }
    .header .box{
        padding: 10px;
    }

    .swiper-slide .video{
        object-fit: fill;
        width: auto;
        height: 100%;
    }
    .swiper-button-next, .swiper-button-prev{
        display: none;
    }
    .home-page .info h5{
        font-size: 40px;
    }
    .home-page .info p {
        font-size: 20px;
    }
    .primary{
        width: 150px;
        height: 40px;
        line-height: 40px;
        font-size: 14px;
    }
    .cooling-box p {
        font-size: 20px;
    }

    .what-other-say .tit, .cooling-box .tit{
        font-size: 32px;
    }
    .box-banner{
        /*height: 300px;*/
    }
    .center-banner img {
        border-radius: 6px;
        object-fit: cover;
        height: 300px;
        width: auto;
    }
    .center-banner .text{
        position: absolute;
        left: 20px;
        top: 60px;
    }
    .center-banner .text .t {
        font-size: 30px;
    }
    .center-banner .text .link {
        width: 120px;
        height: 40px;
        line-height: 40px;
        font-size: 14px;
    }

    .md2{
        width: 100%;
    }
    .md2 .box-banner {
        flex-wrap: wrap;
        display: flex;
        justify-content: space-between;
    }
    .box-banner .m2 {
        width: 100%;
        height: 350px;
        margin-bottom: 20px;
    }
    .md2 .box-banner .box img{
        object-fit: cover;
        width: 100%;
        height: 350px;
    }
    .m2 .desc {
        font-size: 16px;
        padding: 15px 10px;
        letter-spacing: 0;
    }
    .m2 .link {
        width: 120px;
        height: 40px;
        line-height: 40px;
        font-size: 14px;
    }

    .row-container .links{
        flex-wrap: wrap;
    }
    .m3box{
        width: 100%;
        height: auto;
        margin-bottom: 20px;
    }
    .m3box a.pic{
        height: 320px;
        object-fit: fill;
    }
    .m3box .info{
        height: auto;
    }
    .m3box .title {
        font-size: 20px;
        padding: 0;
    }
    .m3box .desc {
        font-size: 14px;
        padding: 5px 10px;
    }
    .m3box .more {
        font-size: 14px;
        padding-bottom: 15px;
    }

    .what-other-say .tit{
        text-align: center;
        height: 100px;
        line-height: 100px;
    }

    .descs{
        flex-wrap: wrap;
    }
    .descs .item{
        width: 100%;
        height: auto;
        padding: 0 5px;
        margin-bottom: 20px;
    }
    .descs .item .logo {
        padding: 30px 0 20px 0;
    }
    .descs .item .txt {
        padding-bottom: 30px;
        font-family: "Roboto";
        font-size: 15px;
    }

    .home-fd{
        margin: 0;
    }

    .new-footer {
        padding-top: 40px;
        height: auto;
        width: 100%;
        margin: 0 auto;
    }
    .new-footer .row .col-sm{
        width: 50%;
        margin-bottom: 15px;
    }


    .sub-title{
        font-size: 24px;
        padding: 30px 0;
    }
    .faq-content{
        padding: 30px;
    }
    .faq-content .container{
        padding: 0;
    }
    .faq-content .title{
        font-size: 14px;
    }
    .faq-content .content{
        font-size: 13px;
    }

    .r-content{
        padding: 30px;
    }

    .top-sub-banner .banner-box{
        max-width: 100%;
    }

    .faq-page{
        width: 100%;
    }
    .resources-content .items {
        flex-wrap: wrap;
        padding: 10px 15px;
    }
    .resources-content .items .item {
        width: 48%;
        min-height: 280px;
    }
    .resources-content .hd {
        display: flex;
        justify-content: space-between;
        min-height: 50px;
        height: auto;
        flex-wrap: wrap;
        padding: 10px 15px;
    }
    .resources-content .hd .tit2 {
        width: 48%;
        height: 50px;
        margin-bottom: 10px;
        line-height: 50px;
    }
    .resources-content .bd-box {
        padding: 20px;
    }
    .show-pic-box {
        display: none;
        position: fixed;
        top: 25%;
        left: 0;
        margin-left: 0;
        margin-top: 0;
        z-index: 999;
        padding: 50px 30px;
        width: 100%;
        min-height: 200px;
        background-color: #ccc;
    }
    .show-pic-box .bbox {
        display: flex;
        flex-direction: column;
    }
    .show-pic-box .bbox .logo {
        width: 100%;
        height: auto;
        background-color: #fff;
        text-align: center;
    }
    .show-pic-box .bbox .logo img{
        display: block;
        margin: 0 auto;
        object-fit: cover;
        width: 100%;
    }
    .resources-content .bd-box .pics-box-list {
        display: flex;
        flex-wrap: wrap;
        flex-direction: column;
    }
    .resources-content .bd-box .pics-box-list .box {
        width: 100%;
        height: 180px;
        margin-bottom: 20px;
        margin-right: 0;
    }
    .down-list .file-item {
        margin-bottom: 20px;
        margin-right: 0;
        width: 100%;
        height: 120px;
        background-color: #222;
        display: flex;
        justify-content: space-between;
    }
    .file-info {
        flex-direction: column;
    }
    .down-list .file-item .i-box {
        flex: 1;
        padding: 10px 15px;
    }
    .down-list .file-item .down-div {
        margin-left: 10px;
        margin-bottom: 10px;
    }

    .news-content{
        padding: 10px 15px;
    }
    .news-content .side-pic{
        display: none;
    }
    .news-content .content .item{
        padding: 20px 20px 30px 20px;
        margin-bottom: 10px;
        min-height: 219px;
    }
    .club{
        padding: 0;
    }
    .club img{
        width: 100%;
    }

    .top-sub-banner .b-tit {
        font-size: 50px;
        line-height: 350px;
    }
    .top-sub-banner{
        background-size: cover;
    }
    .top-sub-banner .infos {
        padding: 30px;
    }
    .top-sub-banner .infos h3 {
        font-size: 30px;
        padding-bottom: 15px;
    }
    .top-sub-banner .infos .desc {
        font-size: 15px;
    }

    .logo-main {
        width: 100%;
    }
    .buy-page{
        padding-top: 20px;
    }
    .search-bar {
        padding-bottom: 30px;
        display: flex;
        flex-direction: column;
    }
    .search-bar .countries{
        margin-bottom: 10px;
    }
    .search-bar .form-select{
        width: 100%;
    }
    .logo-list {
        padding: 0 20px;
        justify-content: space-between;
    }
    .logo-list li {
        width: 48%;
        padding-bottom: 20px;
    }


    .product-main {
        max-width: 100%;
        width: 100%;
        padding: 20px 0;
        flex-direction: column;
    }
    .filter-h5{
        display: flex;
        align-items: center;
        padding: 20px;
    }
    .filter-h5 .filter-icon{
        background-image: url("../images/filter.svg");
        background-repeat: no-repeat;
        background-size: cover;
        width: 24px;
        height: 24px;
    }
    .filter-h5 span{
        color: #fff;
        font-size: 16px;
        padding-left: 10px;
        font-family: "Roboto";
    }
    .product-main .left-nav {
        flex: 1;
        padding: 0 20px;
        position: fixed;
        background: #111;
        width: 100%;
        height: 100vh;
        overflow: auto;
        top: 70px;
        left: 0;
        z-index: 99;
    }
    .product-left-nav{
        display: none;
    }
    .product-left-nav .close-nav{
        display: block;
        width: 30px;
        height: 30px;
        background-image: url("../images/close.svg");
        background-repeat: no-repeat;
        background-size: cover;
        background-position: center;
        position: absolute;
        top: 25px;
        right: 25px;
        z-index: 10;
    }
    .product-main .right-main {
        width: 100%;
        padding: 0 20px;
    }
    .product-main .items {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        width: 100%;
    }
    .product-main .items .item {
        margin-bottom: 10px;
        margin-right: 0;
        width: 48%;
    }
    .product-main .items .item .pic {
        width: 100%;
         height: 160px;
        background-color: #111;
        display: block;
    }
    .product-main .items .info {
        text-align: left;
        color: #fff;
        padding: 10px;
        height: auto;
    }
    .product-main .items .info .tit {
        font-size: 14px;
    }

    .product-banner{
        height: 250px;
    }
    .wrap-nav {
        max-width: 100%;
        height: auto;
    }
    .produter-nav {
        flex-wrap: wrap;
    }
    .product-detail-banner{
        height: 200px;
    }
    .product-detail .detail{
        width: 100%;
    }
    .produter-nav .item{
        width: 50%;
        padding: 10px;
    }
    .nav-fixed{
        height: auto;
    }
    .specifications {
        background-color: #222;
        padding: 15px 10px;
        overflow: auto;
    }
    .gallery-wrap {
        width: 100%;
        height: auto;
        margin: 0 auto;
        background-color: #fff;
        position: relative;
    }
    .gallery {
        width: 100%;
        margin: 0 auto;
        overflow: hidden;
    }
    .gallery .swiper-button-next, .gallery .swiper-button-prev{
        display: none;
    }


    .review-content {
        display: flex;
        justify-content: space-between;
        flex-direction: column;
        padding: 15px;
    }
    .review-content .info {
        flex: 1;
        padding: 0;
        line-height: 24px;
        position: relative;
    }
    .review-content .info h2{
        font-size: 30px;
        padding: 0 0 20px 0;
    }
    .review-content .left-arrow {
        left: 0;
    }
    .review-content .right-arrow {
        right: 0;
    }
    .review-content .left-arrow, .review-content .right-arrow {
        display: block;
        position: absolute;
        top: -50px;
        z-index: 100;
        background-repeat: no-repeat;
        width: 20px;
        height: 20px;
        background-position: center;
        cursor: pointer;
    }
    .review-content .info .con {
        width: 100%;
    }
    .review-content .big-pic{
        width: 100%;
    }
    .club .club-box{
        height: 750px;
    }
    .club .club-logo{
        text-align: center;
        padding: 100px 30px 50px 30px;
    }
    .club .club-tit{
        font-size: 24px;
        line-height: 40px;
        color: #fff;
        padding: 20px 30px;
        text-align: center;
    }
    .club .club-sub{
        font-family: 'Roboto-bold';
        font-size: 16px;
        line-height: 30px;
        color: #fff;
        padding: 0 30px;
    }

    .industrial .top-sub-banner .b-tit{
        font-size: 40px;
        line-height: 60px;
        padding: 100px 30px 20px 30px;
    }

    .logo-list .logo-pic{
        width: 180px;
        height: 90px;
    }


.what-new-box{
    display: flex;
    flex-wrap: wrap;
    flex-direction: column;
  }
  .what-new-box .item{
    width: 100%;
    margin-bottom: 10px;
  }
  .what-new-box .big{
    width: 100%;
  }
  .new-flex{
    width: 100%;
    display: flex;
    justify-content: space-between;
    flex-direction: column;
  }

  .s1-new .info{
    position: absolute;
    left: 0;
    bottom: 0;
    padding: 20px;
    font-family: "robto-bold";
  }
  .new-flex .info .title{
    font-size: 25px;
  }
  .new-flex .info .sub{
    font-size: 16px;
    padding: 10px 0;
  }
  .new-flex .info a{
    font-size: 16px;
    color: #ff5a00;
  }
  .s2-new .info{
    width: 100%;
    height: 140px;
    padding: 20px 0;
    background-color: #111;
    text-align: center;
  }
  .new-flex .pic{
    width: 100%;
    height: auto;
    overflow: hidden;
  }
}