@media (min-width: 1921px) {
 

}

@media (max-width: 1920px) {

 
}

@media (max-width: 1680px) {


}



@media screen and (max-width:1440px) {

.nav-menu li a {
  margin-right: 15px;
}
.logo img {
  height: 55px;
}
.head_right {
  margin-left: 10px;
}
}

@media screen and (max-width:1360px) {
 .banner_txt b{ font-size:24px;}
 .banner_txt span{ font-size: 18px;}
.seaBtn{ margin-left: 0;}
.container-fluid {
    padding: 0 5vw;
}
}
@media screen and (max-width:1280px) {
  .nav li {
    margin-right: 25px;
  }

  .container {
    max-width: 1200px;
  }


 .pad_100 {
  padding: 70px 0;
 }
.container-fluid {
    padding: 0 2vw;
}
.logo img{ height: 50px;}
}

@media screen and (max-width:990px) {

    .change-language {
    display: none;
  }

.seaBtn {
    margin-right: 40px;
}
  .change-language {
    display: none;
  }

  .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;
  }

  .sub-content {
    position: relative;
    display: block;
    right: auto;
    border-radius: 0;
    border: none;
    box-shadow: none;
    z-index: 99999;
  }

  .lang-more {
    display: none !important
  }

  .mobile-head-items {
    position: fixed;
    top: 0;
    left: 0;
    background: #f1f1f1;
    width: 100%;
    height: 38px;
    line-height: 38px;
    text-align: left;
    display: block;
    z-index: 998;
  }

  .mobile-head-item {
    float: right;

  }

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

  .mobile-head-item .title {
    width: 100%;
    font-size: 18px;
    height: 35px;
    line-height: 35px;
    overflow: hidden;
    text-align: center;
    color: #333;
    cursor: pointer;
    padding-right: 10px;
  }

  .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%;
  }

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

  .headDiv .logo img {
    height: 46px;
  }

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


  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: white;
    transition: all 0.4s ease;
    transform: translateY(-100%);
    z-index: 99;
    overflow-y: auto;
    max-height: 0;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    opacity: 0;
    visibility: hidden;
  }


  .arrow-btn i {
    display: block;
  }

  .nav.active {
    transform: translateY(0);
    max-height: 80vh;
    opacity: 1;
    visibility: visible;
  }

  .nav>ul {
    flex-direction: column;
    padding: 10px 0;
  }

  .nav li {
    width: 100%;
  }

  .nav ul li a {
    height: auto;
    padding: 12px 20px;
    text-align: left;
    border-bottom: 1px solid #f0f0f0;
    position: relative;
    height: auto;
    line-height: 24px;
  }

  /* 移动端箭头按钮 */
  .arrow-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 1px solid #dedede;
    margin-left: auto;
  }



.headDiv .head_right { height: 60px;}
  #header {

    height: 60px;
    background: #fff;
    margin-top: 35px;
  }
.headDiv .logo { height: 60px; display: flex; align-items: center; justify-content: center;}
.headDiv .top_menu { height: 60px;}
.mobile-nav a span{ display: none;}
.headDiv .head_right { height: 60px;}
  #header.header-scrolled {

    height: 60px;
    background: #fff;
  }
  #header.header-scrolled.headDiv .logo { height: 60px;}
#header.header-scrolled.headDiv .top_menu { height: 60px;}
  #header.header-scrolled .nav ul li a {
    color: #333;
  }

  #header.header-scrolled .nav li.active a {
    color: #333;

  }

  #header.header-scrolled .logo2 {
    display: none;
  }

  #header.header-scrolled .logo1 {
    display: block;
  }

  #header.header-scrolled .nav ul li a:hover {
    color: #E60008;
  }

  #header.header-scrolled .nav ul li.active a {
    color: #E60008;
  }

  #header.header-scrolled .nav ul li ul li a:hover {
    color: #fff;
  }

  #header.header-scrolled .arrow-btn i {
    color: #333;
  }

  #banner {
    height: 60vh;
  }

  .footer-list1 {
    border-left: 0;
    padding: 0;
  }

  .product ul li a {
    flex-direction: column;
  }

  .product ul li a span {
    display: flex;
    flex-direction: column;
  }

  /*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;
  }

  .top {
    display: none;
  }

/* mian */
.zzsc{ flex-direction:column;}
.zzsc .tab{ width: 100%;}
.zzsc .co{ width: 100%; margin-top: 20px;}
.fot_bot{ display: none;}
.foot-contact{ width: 100%; padding: 20px 0;}
.footer-copyright .main_box {
  display: block;
}
  /*底部*/
  .foot {
    padding: 30px 0;
    display: flex;
    flex-wrap: wrap;
    flex-direction: column;
    align-items: center;
    justify-content: center;
  }

  .foot .ft-contact {
    flex: 1;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    padding: 10px;
    text-align: center;
  }

  .foot .ft-contact img {
    margin: 0 auto;
  }

  .footer-list2 {
    display: none;
  }

  .foot .ft-contact b {
    text-align: center;
    width: 100%;
  }

  .foot .ft-nav .ft-nav-list {
    display: none;
  }

  #header.header-transparent {
    background: #fff;
  }

  .pad80 {
    padding: 50px 0;
  }


  .ft-logo {
    display: flex;
    justify-content: center;
    flex-direction: column;
    width: 100%;
  }

  .ft-logo img {
    width: auto;
    margin-left: auto;
    margin-right: auto;
    display: block;
  }

  .banner_txt b {
    font-size: 26px;
    margin: 10px 0;
  }

  .banner_txt span {
    font-size: 18px;
  }

.pad_100{ padding: 50px 0;}

.ab_bottom{ margin: 0;}
.ab_bottom b{ font-size: 30px;}
.main_title .m_p1 {
  font-size: 40px;
}

.pad_100{
  padding: 50px 0;
}
.footer-list3{ display: none;}
.fot-top .fot-social{ width: 30%;}
.cooperation-box{ flex-direction: column;}
.cooperation-box .main_title{ width: 100%;}
.cooperation-box .main_title .m_p3{ text-align: center;}
.history-tu{ width: 100%;}
.about-box{ flex-direction: column;}
.ab_tu{ width: 100%;}
.about_fl{ width: 100%; margin-top: 20px;}
.cus-btn-2 {
  font-size: 16px;
}
.about_fl .more{ justify-content: center;}
.prone .swiper-slide p{ font-size: 14px;width: 100%;overflow: hidden;display: -webkit-box;-webkit-line-clamp: 1;-webkit-box-orient: vertical;}
.prone .swiper-slide{ padding: 20px ;}
}

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

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

  .top-box {
    height: 60px;
  }

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

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


  #banner {
    height: 50vh;
  }
  /*about*/
  .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;
  }


  .main_title p b {
    font-size: 30px;
    line-height: 40px;
  }


  .main_title .m_p4 {
    font-size: 20px;
  }

  .pad80 {
    padding: 40px 0;
  }

  .main_title .m_p1 {
    font-size: 32px;
  }

  .main_title .m_p2 {
    font-size: 16px;
  }

  .main_title .m_p3 {
    font-size: 20px;
  }


  .footer-list1 {
    border: none;
    padding-left: 0;
  }


  .main_title {
    text-align: center !important;
  }

  .main_title .m_p1 {
    justify-content: center !important;
  }

    .about-box{ flex-direction: column;}
    .about_fl{ width: 100%;}
    .about_fl .main_title .m_p1::before{ margin: 0 auto;}
    .about_fl .more{ justify-content: center;}
    .ab_bottom{ width: 100%; margin-top: 10px;}
    .zzsc .tab a img{ max-height: 32px;}
    .zzsc .tab a{ font-size: 20px;}
    .ys_list_left b{ font-size: 24px;}
    .ys_list_left p{ font-size: 14px;}
  .ys_list_box{ flex-direction: column;}
  .ys_list_box .ys_list_txt{ width: 100%;}
  .ys_list_box .img{ width: 100%; margin-top: 20px; }
  .ys_list_box .img img{margin-left: auto; margin-right: auto;}
.news-two ul li {
    width: calc(50% - 10px);
    border: 1px solid #dedede;
    margin: 5px;
}
.fot-top {
  flex-direction: column;
}
.fot-top .fot-logo{ width: 100%; text-align: center; margin-top: 30px;}
.fot-top .fot-logo img{ margin-left: auto; height:60px; margin-right: auto;}
.fot-top .fot-social{ justify-content: center;}
.fot-top .fot-social{ width: 100%;}
.fot-top .fot-social .shemei{ padding-left: 0; }
.fot-top .fot-social{border-left: none;}
}

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

  .banner_txt b {
    font-size: 20px;
    margin: 10px 0;
  }

  .banner_txt span {
    font-size: 16px;
  }

  #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;
  }

  .foot .ft-contact {
    flex: 1;
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    padding: 10px;
  }

  .foot .ft-contact {
    flex: 1;
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    padding: 10px;
  }

  .foot .ft-nav {
    width: 100%;
  }

 

    #banner {
        height: 35vh;
    }
   
  .banner_txt b{ font-size: 20px;}
.fot_top img{ height:60px; }

.fot_top { flex-wrap: wrap;}
.fot_top div{ width: 100%; margin-bottom: 20px; display: flex; align-items: center; justify-content: center;}
.fot_bot { flex-wrap: wrap;}
.footer-list3{ width: 100%; text-align: center;}
.footer-list4 { width: 100%; justify-content: center; align-items: center;}
.footer-copyright .main_box { flex-wrap: wrap;}
.footer-copyright .main_box p{ width: 100%; }

#suspension{ display: none;}


.fot_bg{ padding: 20px 0;}
.banner_txt b,.banner_txt span {
  width: 100%;
}
.ab_bottom li{ width: 50%;}
.footer-list1 span, .footer-list2 span, .footer-list3 span{
  font-size: 20px;
}
.footer-list1 p, .footer-list2 p, .footer-list3 p{ font-size: 16px;}
.ab_tit{ font-size: 20px;}
.about_fl .ab_txt{ font-size: 14px; margin-top:10px;}
.cus-btn-2{ font-size: 14px;}
.ab_bottom b{ font-size: 22px;}
.ab_bottom li p{ font-size: 14px;}
.main_title .m_p1{ font-size: 28px;}
.sl .gallery-thumbs .swiper-slide{ padding: 10px;}

.zzsc{ margin-top: 20px;}
.zzsc .tab a{ font-size: 16px; padding: 15px;}
.ys_list_left{ padding: 15px;}
.ys_list_box{ margin-top: 10px;}
.ys_list_left b{ margin-bottom: 10px; font-size: 20px;}
.cooperation-box{ padding: 30px 0;}
.case-list .swiper-slide{ padding: 15px;}
.case-list img{ margin-top: 15px;}
.news-box{ flex-direction: column;}
.news-fl{ width: 100%;}
.news-fr{ width: 100%; margin-top: 20px;}
.news-one b{ margin: 10px 0;}
.news-one p{ line-height: 26px;}
    .news-two ul li {
        width: 100%;
        border: 1px solid #dedede;
        margin: 5px 0;
    }
    .news-two a {
 padding: 5px 0; }
 .newscon b{ margin: 5px 0; font-size: 16px; font-weight: normal;}
 .newscon p{ display: none; }
    .news-one b{ font-weight: normal;}
    .news-one p{ font-size: 14px;} 
    .day p{ font-size: 14px; color: #999;}
    .news-one span{ font-size: 14px;}
    .news-two ul li{ border-left: none; border-right: none; border-top: none;}
   .van-tit b{ font-size: 28px;} 
   .van-tit p{ margin-top: 15px; font-size: 16px;}
} 

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

    .banner_txt { top:20%}
 
    .banner_txt b{ font-size: 16px;}
    .headDiv .logo img{  height: 40px;}
    .main_title .m_p1{ font-size: 24px;}

    .banner_txt span{ display: none;}


      .sl .gallery-thumbs {
    box-sizing: border-box;
    margin: 30px;
}
.sl .gallery-thumbs .swiper-slide a{ font-size: 14px;}
   .sl .gallery-thumbs .swiper-slide{
      border-radius: 10px;
    }
    .top-btn .swiper-button-next{ right: 0;}
    .top-btn .swiper-button-prev {
      left: 0;
    }
        .sl .gallery-thumbs {
        box-sizing: border-box;
        margin: 18px 20px;
    }

    .sl .gallery-top .swiper-slide .swiper-container {
    position: relative;
    padding-bottom: 66px;
}
}