@media screen and (max-width: 1700px) {
           
    .common_banner {
        margin-top: 45px;
        position: relative;
    }
    .w_100 {
        width: 1400px;
    }
    .common_head .logo img {
        height: 40px;
    }
    .common_head .nav>.item {
        height: 70px;
        width: 120px;
    }
    .common_head .nav>.item>a {
        height: 70px;
        line-height: 70px;
    }
    .banner_swiper {
        margin-top: 69px;
    }
    .common_head .nav>.item .child {
        top: 69px;
    }
    .common_head .search {
        width: 200px;
    }
    .common_head .nav>.item1::before {
        right: 7px;
    }
    .banner_swiper .swiper-slide .txt div .p1 {
        font-size: 50px;
        line-height: 50px;
        margin-bottom: 25px;
        letter-spacing: 8px;
    }
    .banner_swiper .swiper-slide .txt div .p2 {
        font-size: 16px;
        line-height: 20px;
        margin-bottom: 100px;
    }
    .banner_swiper .swiper-slide .txt div .p3 i{
        width: 80px;
        height: 5px;
    }
    .banner_swiper .swiper-slide .txt div .p4 a{
        width: 130px;
        height: 40px;
        border-radius: 40px;
        line-height: 40px;

    }
}
@media screen and (max-width: 1500px) {
    .w_100 {
        width: 1200px;
    }
    .common_head .logo img {
        height: 35px;
    }
    .common_head .nav>.item {
        height: 60px;
        width: 105px;
    }
    .common_head .nav>.item>a {
        height: 60px;
        line-height: 60px;
    }
    .banner_swiper {
        margin-top: 59px;
    }
    .common_head .nav>.item .child {
        top: 59px;
    }
    .common_head .search {
        width: 150px;
        margin-left: 20px;
    }
    .common_head .nav>.item1::before {
        right: 4px;
    }
    .banner_swiper .swiper-slide .txt div .p1 {
        font-size: 50px;
        line-height: 50px;
        margin-bottom: 25px;
        letter-spacing: 8px;
    }
    .banner_swiper .swiper-slide .txt div .p2 {
        font-size: 16px;
        line-height: 20px;
        margin-bottom: 100px;
    }
    .banner_swiper .swiper-slide .txt div .p3 i{
        width: 80px;
        height: 5px;
    }
    .banner_swiper .swiper-slide .txt div .p4 a{
        width: 130px;
        height: 40px;
        border-radius: 40px;
        line-height: 40px;
        font-size: 16px;

    }
    .main_about .w_100 .info .txt p {
        line-height: 25px;
        font-size: 14px;
        margin-bottom: 10px;
    }
    .main_about .w_100 .num .item .p1 {
        font-size: 56px;
    }
    .common_title {
        padding: 40px 0;
    }
    .main_zy .list .item {
        padding: 60px 40px;
    }
    .main_zy .list .item:hover {
        width: 100%;
    }
    .main_zy .list .item .box .icon {
        margin-bottom: 40px;
    }
    .main_zy .list .item .box .name {
        font-size: 28px;
        margin-bottom: 30px;
    }
    .main_zy .list .item .box .txt {
        font-size: 14px;
        margin-bottom: 60px;
    }
    .main_news .right {
        width: 400px;
    }
    .main_join .w_100 span {
        font-size: 30px;
    }
    .common_footer .center .form{
         width: 500px;
    }
    .common_footer .center .nav {
        width: 190px;
    }
    .products_box1 .nav {
        width: 260px;
        margin-right: 30px;
    }
    .products_box1 .details {
        width: calc(100% - 290px);
    }
    .project_details1 .mySwiper2 {
        width: 460px;
        height: 460px;
    }
    .project_details1 .mySwiper {
        width: calc(460px - 60px);
    }
    .project_details1 .txt .tel a,
    .project_details1 .txt .tel span {
        font-size: 18px;
    }
    .project_details1 .txt .name {
        font-size: 24px;
    }
    .products_box1 .nav .list .item p {
        font-size: 16px;
    }
}


@media screen and (max-width: 1200px) {
    .common_banner{display:none;}
    .common_banner .txt .p1 {
        font-size: 20px;
        margin-bottom: 10px;
    }
    .common_banner .txt .p2 {
        margin-bottom: 10px;
    }
    .common_banner .txt .p2 i {
        height: 3px;
        width: 50px;
    }
    .common_banner .txt .p3 {
        font-size: 14px;
    }
    .about_tab .w_100 {
        flex-wrap: wrap;
        flex-direction: column-reverse;
    }
    .products_main .about_tab .w_100 {
        flex-direction: inherit;
    }
    .about_tab .w_100 .item {
        line-height: 40px;
        width: auto;
        padding: 0 15px;
        font-size: 14px;
        word-break: keep-all;
    }
    .about_tab .w_100 .list {
        width: 100%;
        overflow-x: auto;
        justify-content: flex-start;
    }
    .about_tab .common_crumbs1 {
        line-height: 40px;
        text-align: left;
        width: 100%;
        height: auto;
    }
    .list-news {
        flex-wrap: wrap;
    }
    .list-news .news {
        margin: 20px auto;
    }
    .x4,
    .x6,
    .x1 {
        width: 100%;
    }
    .about_content .item .title {
        margin-bottom: 20px;
        font-size: 18px;
        padding: 20px 0 10px;
    }
    .main {
        max-width: 750px;
        margin: 0 auto;
    }
    .w_100 {
        width: 96%;
        margin: 0 auto;
    }
    .common_head {
        display: none;
    }
    .common_web_head {
        display: block;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        margin: 0 auto;
        z-index: 99;
        background:#fff;
        width: 100%;
        max-width: 750px;
        padding: 10px ;
    }
    .common_web_head .logo img{
        height: 25px;
    }
    .common_web_head .menu img {
        height: 25px;
    }
    .banner_swiper {
        margin-top: 45px;
    }
    .banner_swiper .scroll {
        display: none;
    }
    .banner_swiper .swiper-slide .txt div .p1 {
        font-size: 24px;
        line-height: 30px;
        margin-bottom: 15px;
        letter-spacing: 3px;
    }
    .banner_swiper .swiper-slide .txt div .p2 {
        margin-bottom: 10px;
        display: none;
    }
    .banner_swiper .swiper-slide .txt div .p3 i {
        margin-bottom: 15px;
        width: 40px;
        height: 3px;
    } 
    .banner_swiper .swiper-slide .txt div .p4 a {
        width: 120px;
        height: 30px;
        border-radius: 40px;
        line-height: 30px;
        font-size: 12px;
    }
    .banner_swiper .pagination {
        height: 40px;
    }
    .banner_swiper .pagination>div {
        height: 40px;
    }
    .banner_swiper .pagination>div .button {
        width: 50%;
    }
    .banner_swiper .pagination .bg {
        background-size: cover;
        width: 50%;
    }
    .banner_swiper .pagination>div .button .swiper-button-next,
    .banner_swiper .pagination>div .button .swiper-button-prev {
        width: 30px;
        background-size: 8px;
    }
    .banner_swiper .pagination>div .button .swiper-pagination {
        font-size: 16px;
    }
    .banner_swiper .pagination>div .button .swiper-pagination .swiper-pagination-current {
        font-size: 24px;
    }
    .banner_swiper {
        display: none;
    }
    .web_banner_swiper {
        display: block;
    }
    .main_about .w_100 {
        padding-top: 50px;
    }
    .common_title {
        width: 100%;
        background-size: 70px;
        padding: 20px 0;
    }
    .main_about {
        margin-bottom: 40px;
    }
    .main_about .bg {
        display: none;
    }
    .main_about .w_100 .num {
        margin-top: 30px;
    }
    .common_title span {
        font-size: 28px;
    }
    .main_about .w_100 {
        flex-wrap: wrap;
    }
    .main_about .w_100 .info {
        width: 100%;
    }
    .main_about .w_100 .num .item .p1 {
        font-size: 30px;
    }
    .main_about .w_100 .num .item .p2 {
        font-size: 14px;
    }
    .main_about .w_100 .operation a {
        margin-top: 30px;
    }
    .main_about .w_100 .pic {
        margin-top: 30px;
        width: 100%;
    }
    .common_title a {
        width: 120px;
        height: 40px;
        line-height: 40px;
        padding: 0 15px;
        background: #fff url("../images/icon5.png") no-repeat 85px center;
    }
    .main_zy {
        margin-bottom: 40px;
    }
    .main_zy .content>.pic {
        display: none;
    }
    .main_zy .list {
        display: flex;
        flex-wrap: wrap;
        width: 96%;
        margin: 0 auto;
        position: unset;
    }
    .main_zy .list .item,
    .main_zy .list .item.active {
        width: 100%;
        margin-bottom: 20px;
        padding: 40px 20px;
    }
    .main_zy .list .item>img {
        width: 100%;
    }
    .main_zy .list .item .box {
    }
    .main_project .swiper-container2 {
        padding-bottom: 50px;
    }
    .main_project {
        margin-bottom: 40px;
    }
    .main_news .content {
        flex-wrap: wrap;
    }
    .main_news .left .item {
        flex-wrap: wrap;
    }
    .main_news .left {
        width: 100%;
        flex-wrap: wrap;
    }
    .main_news .left .info {
        width: 100%;
    }
    .common_footer>.w_100 {
        display: none;
    }
    .main_news .left .pic {
        width: 100%;
        margin-right: 0;
    }
    .main_news {
        padding: 30px 0 40px;
    }
    .main_news .right {
        border: none;
    }
    .main_news .left .item {
        border: none;
        margin-bottom: 0;
    }
    .main_news .item .default {
        margin-bottom: 30px;
    }
    .main_join {
        padding: 20px 0;
    }
    .main_join .w_100 span {
        font-size: 20px;
        margin-bottom: 20px;
    }
    .main_join .w_100 {
        flex-wrap: wrap;
    }
    .common_footer {
        padding-top: 0;
    }
    .common_footer .banquan .w_100{
        flex-wrap: wrap;
        text-align: left;
    }
    .common_footer .banquan a {
        margin-left: 0;
        margin-top: 10px;
    }
    .web_nav {
        display: block;
        position: fixed;
        z-index: 99;
        width: 100%;
        height: 100%;
        right: -100%;
        margin: 0 auto;
        top: 0;
        padding: 20px;
        background-color: #fff;
        transition: 0.3s;
    }
    .web_nav.active {
        right: 0;
    }
    .web_nav .close img,
    .web_nav .logo img {
        height: 25px;
    }
    .web_nav> .flex {
        flex-wrap: wrap;
    }
    .web_nav> .flex>.item {
        width: 100%;
        line-height: 40px;
        border-bottom: 2px solid #f1f1f1;
    }
    .web_nav> .flex>.item p {
        position: relative;
    }
    .web_nav> .flex>.item a ,
    .web_nav> .flex>.item p a {
        display: block;
        width: 100%;
        height: 40px;
        line-height: 40px;
    }
    .web_nav> .flex>.item p i {
        font-size: 16px;
        height: 40px;
        line-height: 40px;
        width: 50px;
        text-align: right;
        padding: 0 20px;
        position: absolute;
        right: 0;
        z-index: 1;
        top: 0;
    }
    .web_nav> .flex .item .child {
        padding-left: 20px ;
        display: none;
    }
    .about_content .content {
        flex-wrap: wrap;
    }
    .about_content .content .pic {
        margin-right: 0;
        margin-bottom: 20px;
    }
    .about_content .content .name {
        font-size: 24px;
    }
    .about_content .w_100 .num .item {
        width: 50%;
    }
    .about_content .w_100 .num .item .p1 {
        font-size: 46px;
        line-height: 50px;
        height: 50px;
    }
    .about_content .w_100 .num {
        margin-top: 30px;
    }
    .about_content .w_100 .txt {
        line-height: 34px;
    }
    .products_box1 {
        margin-top: 20px;
    }
    .products_box1 .w_100 {
        flex-wrap: wrap;
    }
    .products_box1 .nav {
        width: 100%;
        margin-right: 0;
    }
    .products_box1 .details {
        width: 100%;
    }
    .project_details1 {
        margin-top: 20px;
    }
    .project_details1>.flex {
        flex-wrap: wrap;
        width: 100%;
    }
    .project_details1 .pic {
        width: 100%;
    }
    .project_details1 .mySwiper2 {
        width: 100%;
    }
    .project_details1 .swiper_botoom .swiper-slide  img {
        width: auto;
        height: 100%;
    }
    .project_details1 .mySwiper .swiper-slide {
        height: 60px;
    }
    .project_details1 .mySwiper {
        width: auto;
        height: 60px;
    }
    .project_details1 .txt .name {
        padding: 5px 0;
        margin-top: 20px;
        font-size: 20px;
    }
    .project_details1 .txt {
        margin-left: 0;
    }
    .project_details1 .txt .type {
        margin-bottom: 15px;
        padding-bottom: 15px;
    }
    .project_details1 .txt .tel {
        font-size: 16px;
    }
    .project_details1 .txt .tel span,
    .project_details1 .txt .tel a {
        
        font-size: 16px;
    }
    .products_box1 .nav .title {
        height: 40px;
        line-height: 40px;
        font-size: 18px;
        padding: 0 20px;
    }
    .products_box1 .nav .list .item p {
        height: 40px;
        line-height: 40px;
        font-size: 14px;
        font-weight: 400;
    }
    .products_box1 .nav .list .item .li a {
        height: 40px;
        line-height: 40px;
        font-size: 14px;

    }
    .products_box1 .details .list {
        justify-content: space-between;
    }
    .products_box1 .details .list a {
        width: 48%;
        margin-right: 0;
        padding: 20px;
        margin-top: 20px;
        margin-bottom: 0;
    }
    .common_page {
        padding: 30px 0;
    }
    .common_page a {
        border: 1px solid #eeeeee;
        border-radius: 40px;
        height: 20px;
        width: 20px;
        min-width: 20px;
        line-height: 18px;
        font-size: 12px;
        transition: 0.3s;
        margin: 0 2px;
    }
    .strenght_box .box .name{padding:20px 0 10px;margin-bottom:15px;font-size:18px;}
    .strenght_box .box .list .item{padding:10px;width:48%;margin-bottom:10px;}
    .common_banners{display:block;display: flex;
    justify-content: center;
    align-items: center;}
    .common_banners .txt {
    position: absolute;
   
   
    width: 100%;
    
    
    text-align: center;
    color:#fff;
}
    .common_banners .txt .p1 {
        font-size: 24px;
        margin-bottom: 10px;
        font-weight: bold;
    }
    .common_banners .txt .p2 {
        margin-bottom: 10px;
    }
    .common_banners .txt .p2 i {
        height: 3px;
        width: 50px;
    }
    .common_banners .txt .p3 {
        font-size: 14px;
    }
    .about_content .content .pic img{min-width:100%;}
    .products_box1 .details img{width:100%;}
    .news_details .info img{width:100%;}
    .news_details .info .other{display:none;}
    .news_box .item .pic{margin-right:0px;display:none;}
    .news_box{margin-top:0px;}
    .news_box .item .info{padding:10px 0px}
    .news_box .item .info .title{font-size:18px;margin-bottom:10px;}
    .news_box .item .web_date{display:none;}
    .news_box .item .info .tips{margin-bottom:10px;}
    .news_box .item .info .more a{width:80px;height:30px;line-height:30px;font-size:14px;}
    .contact_box2{margin-top:0px;}
    .contact_box2 .name{padding:10px 0 10px;margin-bottom:15px;font-size:18px;}
    .contact_box2 .table .details{padding:10px;}
    .contact_box2 .table .item .tr span{line-height:25px;}
    .contact_box .name{padding:10px 0 10px;margin-bottom:15px;font-size:18px;}
.contact_form .name{font-size:18px;}
    .contact_box .info1 .map{width:100%;}
    .contact_form{margin-top:15px;background:none;}
    .contact_form .w_100{padding:0px;}
    .bs{padding:20px 0px}
    .contact_box .info1 .txt{width:100%;}
    .project_details1 .txt .tel img{width:auto;}
    .kuandu{width:100%!important;}
    .normal-list li span{display:none;}
    .normal-list li a{padding:10px 10px!important;}
    .padding-big-top{padding-left:18px!important;}
    
    
.search {
    width: 100%;
    position: relative;
    border: 1px solid #d5d5d5;
    border-radius: 20px;
    height: 40px;
    overflow: hidden;
    margin-left: 0px;
    margin-top:20px;
}
.search input {
    width: 100%;
    border: none;
    padding: 0 20px;
    border-radius: 50px;
    height:40px;
    outline: none;
}
.search button {
    width: 60px;
    border-radius: 20px;
    background: url("../images/search_icon.png") no-repeat center;
    position: absolute;
    right: 0;
    top: 0;
    height: 40px;
    border: none;
    cursor: pointer;
}
    
}