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

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

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

  .nav-menu a {
    padding: 0 10px;
  }

  .top-box .logo {
    flex: 2;
  }

  .top-box .top_tel {
    font-size: 20px;
  }
}

@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{ height: 40px;}

  .about_fr {
    width: 100%;
  }

  .h_language {
    padding: 0 8px;
  }

  .nav-menu a {
    padding: 0 5px;
  }

  .slide_nav {
    width: 20%;
    padding-left: 1%;
    margin-top: 40px;
  }

  .top-box .logo {
    padding-left: 5px;
  }

  .top-box .top_tel {
 display: none;
  }
  .main_title p {
    font-size: 34px;
  }

.entrance .ent_item a{ padding: 20px;}
.tj_tu .swiper-container-thumbs .swiper-slide{ font-size: 14px;}
#gallery .swiper-slide .product-box .pro_con b{ font-size: 24px;}
}

@media screen and (max-width:990px) {
  .top-box{ height: 50px;}
  #header.header-transparent{ height: 50px;}
  .jiant {
    display: none;
  }
  .banner_txt b{ font-size: 30px; width: 100%;}
  .banner_txt span{ width: 100%;}
  #header.header-transparent{ background:#fff;}
  #header{ position: relative;}
  .mobile-nav-toggle{ background:none;}
  .mobile-nav-toggle i{font-size: 22px; height: 30px; width: 30px; color: #000;  line-height: 30px;}
  .top-box .logo img{ max-height: 28px;}
  #header.header-scrolled .top-box .logo img{max-height: 28px}
  /*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;
  }

 

  .mobile-nav-toggle {
    top: 13px;
  }

  .top-box .top_tel {
    display: none;
  }

  .top-box .logo {
    justify-content: flex-start;

    padding-left: 10px;
  }

  .top-box .logo img {
    max-height: 38px;
  }
  #header.header-scrolled .top-box .logo img{max-height: 38px}
  .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;
  }

  /*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;
  }

  .scroll {
    display: none;
  }


  .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;
  }
  .zyzs-list{ width: 100%;}
  .zyzs{ background: #f5f5f5; justify-content: center; width: 50%;}
  .foot .ft-nav{ flex-direction: column;}
  .foot .ft_logo{ width: 100%; text-align: center;}
  .foot .ft_logo img{ margin-left: auto; margin-right: auto;}
  .foot .ft-nav .ft-nav-list{ width: 100%; margin-top: 10px;}
  .foot .ft_logo b{ margin-top: 10px;}
  .foot .ft-nav .ft-nav-list dl:last-child dd img{ width: auto;}
  .foot .ft-nav .ft-nav-list dl i{ text-align: center;}
.cpfl_ej_ri { display: none;}
.cpfl_li:hover .cpfl_erji { display: none;}
.entrance_box{ flex-wrap: wrap;}
.entrance .ent_item {
    width: calc(50% - 40px);}
    #gallery .swiper-slide .product-box .pro_con p {
      margin-top: 0px;
      font-size: 14px;
    }
    .more{ margin-top: 20px;}
    .case-list {
    width: calc(25% - 40px);
    margin: 20px;
}
.ft_item{ justify-content: center;}

}

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

  /*头部*/
 
  .top-box .logo {
    justify-content: flex-start;

  }



  .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;

  }

  .news_content .day span {
    font-size: 24px;
  }

  .main_title p {
    font-size: 24px;
  }

  .mobile-nav-toggle {
    top: 10px
  }

  .foot {
    padding: 30px 0;
  }

  .scsl-box li {
    position: relative;
    width: calc(50% - 20px);
    margin: 10px;
  }

 
  .mobile-nav-toggle{ background:none;}
  .mobile-nav-toggle i{font-size: 22px; height: 30px; width: 30px; color: #000;  line-height: 30px;}
  .top-box .logo img{ max-height: 28px;}
  #header.header-scrolled .top-box .logo img{max-height: 28px}
itle span{ font-size: 20px;}


.foot .ft-nav .ft-nav-list dd p {
  margin-bottom: 5px;
  padding: 0 10px;
}
.foot .ft-nav .ft-nav-list dd p span{ display: block;}
.foot .ft-nav .ft-nav-list dt{ padding-bottom: 10px; margin-top: 10px;}
.banner_txt{ top:15%}
    .case-list {
        width: calc(33.3% - 40px);
        margin: 20px;
    }
    .case b{ font-size: 14px;}
    .ft_item b{ font-size: 20px; }
   
}

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

  #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;
  }


  .foot {
    padding: 20px 0;
  }

  .about_fr .ab_txt {
    margin-top: 20px !important;
  }




  .copyright {
    font-size: 14px;
  }
    .entrance .ent_item {
        width: calc(50% - 20px);
        margin: 10px;
    }
    #gallery .swiper-slide .container{ flex-direction: column; padding: 15px;}
        #gallery .swiper-slide .container:nth-child(2n+1){
          flex-direction: column-reverse;
        }
    #gallery .swiper-slide .img-tu{ width: 100%; margin-top: 20px;}
    #gallery .swiper-slide .product-box{ width: 100%; margin-top: 15px;}
    .banner_txt b{ font-size: 24px; margin: 15px 0;}
    .banner_txt span{ font-size: 14px;}
    .entrance .ent_item b{ font-size: 18px;}
   .case-list{ width: calc(50% - 20px); margin: 10px;}
   .tj_tu{ padding: 0;}
   #gallery{ padding: 10px;}
   #gallery .swiper-slide .product-box{ margin-top: 0;}
   #gallery .swiper-slide .product-box .pro_con b{ font-weight: bold; font-size: 18px;}
   .tj_tu .swiper-container-thumbs .swiper-slide{ padding-bottom: 10px;}
   .zyzs{ background: #fff;}
   .zyzs-content b{ font-size: 16px;}
   .zyzs .item{ padding: 0;}
   .foot .ft-nav .ft-nav-list dl:last-child dd img {
    max-height: 90px;
   }
.more{ display: flex; justify-content: center; margin: 20px auto;} 
.more_box{ justify-content: center;}
.zyzs-list{ margin-top: 10px;}
}

@media screen and (max-width:480px) {
 


  .headerBotRig {
    top: 9px
  }


  .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%
  }

.banner_txt{ top:10%}
.banner_txt b{ font-size: 20px;}

.entrance .ent_item a{ padding: 10px 5px;}
.entrance .ent_item b{ font-size: 18px;}
.entrance .ent_item p{ font-size: 14px;}
    .entrance .ent_item {
        width: calc(50% - 10px);
        margin: 5px;
    }
    .main_title p{ font-size: 20px;}
}