@media (min-width: 1921px) {
  .container {
    max-width: 1580px;
  }
}

@media (max-width: 1920px) {
  .container {
    max-width: 1580px;
  }
}

@media (max-width: 1680px) {
  .container {
    max-width: 1320px;
  }

  .top-box .logo {
    flex: 2;
  }
  .cpfl .pro_nav a { width: 20%;}
}

@media screen and (max-width:1440px) {
  .container {
    max-width: 1280px;
  }
  .nav-menu a { padding: 0 10px;}
  #banner .swiper-button {
    display: none;
  }
  .top-box .top_tel { padding: 0 10px;}

}

@media screen and (max-width:1280px) {
  .container {
    max-width: 1200px;
  }

  .nav-menu ul li {
    width: auto;
    padding: 0;
  }

  .top-box .logo img {
    max-height: 55px;
  }
  .nav-menu a{ padding: 0 3px;}
  .slide_nav {
    width: 20%;
    padding-left: 1%;
    margin-top: 40px;
}
.top-box .logo {
  padding-left: 5px;
}
.top-box .top_tel {
  margin-left: 0;
}
.ys li .ar_title b {
  padding-left: 10px;
  font-size: 26px;
}
}

@media screen and (max-width:990px) {
.jiant { display: none;}
  /*头部*/
  .back-to-top {
    display: none !important;
  }
  .top-box{ padding: 0;}
  .change-language {
    display: none;
  }
  #header.header-scrolled{ background: #fff;}
  .headerBotRig {
    position: fixed;
    right: 70px;
    top: 15px;
    z-index: 999 !important;
}
#banner .pc_banner { display: none;}
#banner .mob_banner { display: block;}
  #header {
    height: 70px;
    position: relative;


  }
  .mobile-nav-toggle {
    top:13px;
  }
  .top-box .top_tel{ display: none;}
  .top-box .logo {
    justify-content: flex-start;
    height: 70px;
    padding-left: 10px;
  }

  .top-box .logo img {
    max-height: 55px;
  }

  .top-box .logo .logo-tu2 {
    display: block;
  }

  .top-box .logo .logo-tu1 {
    display: none;
  }
  .top-box { background: #fff;}
  #header.header-scrolled .top-box { background: #fff;}
  .cpfl .pro_nav { display: none;}
  .cpfl .main_title{ text-align: center; width: 100%;}
  #case .swiper-slide img{ height: 240px;}
  /*banner*/

  #banner .swiper-button {
    display: none;
  }

  #banner .swiper-container-horizontal>.swiper-pagination-bullets,
  .swiper-pagination-custom,
  .swiper-pagination-fraction {
    bottom: 10px;

  }

  #banner .swiper-slide .pcimg {
    display: none !important;
  }

  #banner .swiper-slide .mobimg {
    display: block !important;
  }

  /*about*/
 
  .about-box {
    flex-direction: column;
  }

  .about_fl {
    width: 100%;
    padding-right: 0;
  }

  .about_fr {
    width: 100%;
  }


  .mobile-nav .drop-down li a img {
    display: none;
  }

  .pad_80 {
    padding: 30px 0;
  }

  .footer-list2 {
    display: none;
  }

  .main_title p b {
    font-size: 32px;
  }

  .main_title2 b {
    font-size: 24px;
  }

  .mobile-body-mask {
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.6);
    position: fixed;
    left: 0;
    top: 0;
    z-index: 999
  }

  .mobile-ico-close {
    width: 30px;
    height: 30px;
    background: #fff url(../images/close1.png) center center no-repeat;
    background-size: 50% auto;
    position: absolute;
    right: -35px;
    top: 0;
  }

 

  .mobile-head-items {
    position: fixed;
    top: 0;
    right: 0px;
    background: #000;
    width: 100%;
    height: 35px;
    line-height: 35px;
    text-align: left;
    display: block;
    z-index: 995;
    font-size: 24px;
    line-height: 35px;
  }

  .mobile-head-items .title {
    margin-top: 3px;
  }

  .mobile-head-item {
    float: right;
    width: 45px;
  }

  .mobile-head-item.mobile-head-aside {
    float: right
  }

  .mobile-head-item .title {
    width: 100%;
    height: 25px;
    line-height: 25px;
    overflow: hidden;
    text-align: center;
    color: #fff;
    cursor: pointer;
  }

  .mobile-head-item .title a {
    position: relative;
    display: block;
    color: #FFF;
  }

  .mobile-head-item .main-content-wrap {
    background: #FFF;
    top: 0;
    display: block;
    z-index: 99999;
  }

  .mobile-head-item .main-content-wrap .content-wrap {
    overflow-y: auto;
    height: 100%;
    padding: 15px 10px;
    background-color: #fff;
  }

  .mobile-head-item .main-content-wrap.middle-content-wrap .content-wrap {
    overflow-y: hidden;
  }

  .mobile-head-item .side-content-wrap {
    position: fixed;
    display: block;
    left: -70%;
    width: 70%;
    height: 100%;
    top: 105px;
  }

  .mobile-head-item .middle-content-wrap {
    position: absolute;
    left: 0;
    width: 100%;
    height: auto;
    padding: 20px 0;
    opacity: 0;
    visibility: hidden;
  }

  .mobile-head-item .middle-show-content-wrap {
    top: 30px;
    visibility: visible;
    opacity: 1;
  }

  .pro_list a {
    position: relative;
    background: #fff;
    z-index: 1;
    padding: 10px;
    margin: 10px;
    width: calc(50% - 20px);
    overflow: hidden;
  }
 
  .scroll{ display: none;}
  .zyzs-content b { font-size: 30px;}
  .zyzs {
    width: calc(50% - 20px);}
  .ys ul {
    flex-wrap: wrap;
    height: 100%;
    align-items: stretch;
  }


 

  .ys li {
    position: relative;
    overflow: visible;
    height: auto;

    width: calc(50% - 10px) !important;
    border-right: 0;
    margin: 5px;
    background: #f1f1f1;
  }

  .ys li .img_ar {
    height: auto !important;
    width: 100% !important;
  }

  .ys li .dec_ar {
    opacity: 1;
    height: 100%;
    position: relative;
    flex-direction: column;
  }

  .ys {
    height: auto !important;
    padding: 0 10px;
  }

  .ys li .dec_ar div,
  .ys li .dec_ar p {
    width: 100%;
  }

  .ys li .dec_ar p {
    display: block;
    background: #f1f1f1;
  }
  .news_box{ flex-direction: column;}
  .news_fl{ width: 100%; padding-right: 0;}
  .news_fr {
    width: 100%;
    padding-left: 0;
    margin-top: 20px;
}
.foot .ft-nav .ft-nav-list dl:first-child{ display: none;}
.foot .ft-nav .ft-nav-list{ flex-direction: column;}
.foot .ft-nav .ft-nav-list dl{ width: 100%!important;}
.foot .ft-nav .ft-nav-list dt{ text-align: center;}
.foot .ft-nav .ft-nav-list dl:nth-child(2) dd p{ width: 100%; text-align: center;}
.foot .ft-nav .ft-nav-list dl:last-child dd p{ width: 100%;}
.foot .ft-nav .ft-nav-list dl:last-child dd img { margin: 0px auto;}
.copyright .container{ flex-direction: column;}
.foot .ft-nav .ft-nav-list dt{ border: none; margin-bottom: 0;}
}

@media screen and (max-width:768px) {

  /*头部*/
  #header {
    height: 60px;
  }

  .top-box .logo {
    justify-content: flex-start;
    height: 60px;
  }

  .top-box .logo img {
    max-height: 45px;
  }



  .product_con {
    padding: 10px;

  }


  .footer-copyright {
    padding: 10px 0 ;
  }

  .footer-main {
    padding-bottom: 20px;
  }

  .product {

    margin-top: 0px;
  }

  /*about*/

  .about_txt {
    font-size: 15px;
    line-height: 24px;
    margin: 15px auto;
    width: 88%;

  }

  .ab_list2 {

    margin-top: 30px;

  }

  .banner-slide-content .title {
    font-size: 20px;
    line-height: 32px;
    font-weight: 500;
    color: #fff;
    display: block;
    margin-bottom: 15px;
    letter-spacing: -0.25px;
    text-transform: capitalize;
  }


  .banner-slide-content p {

    font-size: 18px;
    font-family: "Poppins", sans-serif;
    color: #fff;

  }

  .about_fl p {
    margin: 0;
  }

  .bottom_nav {
    display: block;
  }

  .bottom_nav a span {
    margin: 0;
  }

  .bottom_nav a {
    flex-direction: column;
  }

  .bottom_nav a img {
    width: 26px;
  }

  .copyright {
    padding: 20px 0 ;
  }

  .copyright i {
    float: none;
  }

  .mobile-nav a {
    height: auto;

  }

  .mobile-nav .drop-down li a {
    background: url(../images/jt.png) no-repeat left;

  }


  .product {
    flex-direction: column;
  }

  .pro_fl {
    width: 100%;
  }
  .pro_fr {
    width: 100%;
    margin-top: 20px;
  }
  .pro_fr .pro_box {
    width: 100%;
    margin-left: 0;
  }
  .news_content .day span { font-size: 24px;}
.main_title p{ font-size: 24px;}
#case .swiper-slide img{ height: 200px;}
.mobile-nav-toggle { top:10px}
.zyzs{ padding: 20px;}
.zyzs-icon{ width: 80px; height: 80px;}
}

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

  .main_title {
    padding: 5px;
  }

  #banner .swiper-slide .container {
    position: absolute;
    left: 0;
    right: 0;
    top: 33%;
    bottom: 0;
    margin: 0 auto;
  }

  .banner-slide-content .title {
    font-size: 16px;
    line-height: 28px;
    font-weight: 500;
    color: #fff;
    display: block;
    margin-bottom: 10px;

  }
  .banner-slide-content p {

    font-size: 14px;
    font-family: "Poppins", sans-serif;
    color: #fff;
  }
  .main_title p {
    margin-bottom: 8px;
  }


  .main_title p b {
    font-size: 28px;
  }
  .about_fr{ margin: 20px 0;}
  
  .main_title span{ font-size: 16px;}
  .ys li {
    position: relative;
    overflow: visible;
    height: auto;
  
    width: 100% !important;
    border-right: 0;
    margin: 5px 0;
    background: #f1f1f1;
  }
  #case .swiper-slide img { height: 180px;}
  .news_content a{ margin-right: 0;}
  .news_info a b{ margin-bottom: 10px;}
  .news_info a p{ padding: 10px 0;}
  .news_content .newscon b{ font-size: 16px;}
  .foot{ padding: 30px 0;}
}

@media screen and (max-width:480px) {
  #header {
    height: 50px;
  }

  .mobile-nav-toggle {
    top: 8px
  }
  .headerBotRig { top:9px}
  .top-box .logo {
    justify-content: flex-start;
    height: 50px;
  }
  
  .top-box .logo img {
    max-height: 40px;
  }
  
  .mobile-nav-toggle i {
    width: 34px;
    height: 34px;
    line-height: 34px;

  }
  .about-box {
    flex-direction: column;
  }
  .about_fl {
    width: 100%;
    padding: 0;
  }
  .banner-slide-content p {
    margin-top: 0;
    font-size: 12px;
  }
  .banner-slide-content .title {
    font-size: 14px;
    line-height: 24px;
  }
  #banner .swiper-slide .container {
    top: 13%
  }
  #case .swiper-slide img{ height: 170px;}
  .news_content .day span{ font-size: 15px;}
  .news_content .day p{ font-size: 16px;}
  .zyzs{ padding: 0; background: none;}
  .zyzs-content p{ color: #fff;}
  
}
@media screen and (max-width:360px){
  #case .swiper-slide img{ height: 150px;}
}