@media (max-width: 1920px) {
  .container {
    max-width: 1580px;
  }
}
@media (max-width: 1680px) {
  .container {
    max-width: 1320px;
  }
}
@media screen and (max-width:1440px) {
  .container {
    max-width: 1280px;
  }
}
@media screen and (max-width:1280px) {
  .container {
    max-width: 1200px;
  }
  .about_fl p {
    margin: 10px 0;
  }
}
@media screen and (max-width:990px) {
  /*头部*/
  .back-to-top {
    display: none !important;
  }
  .language {
    display: none;
  }
  #header {
    height: 70px;
  }
  .top-box .logo {
    justify-content: flex-start;
    height: 70px;
  }
  .top-box .logo img {
    max-height: 55px;
  }


  /*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*/
  .ab_bottom {
    background: url(../images/about.jpg) no-repeat bottom;
    height: 400px;
  }
  .ab_list2 {
    width: 100%;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    margin-top: 30px;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.2);
    position: relative;
    left: 0;
  }
  .about-box {
    flex-direction: column;
  }
  .about_fl {
    width: 100%;
    padding-right: 0;
  }
  .about_fr {
    width: 100%;
  }
  .hz-tu {
    float: left;
    width: 50%;
    position: absolute;
    left: 0;
    top: 0;
    right: 0;
    margin: 0 auto;
    z-index: 1;
  }
  .hz-tu img {
    opacity: 0.3;
  }
  .hezuo {
    padding-bottom: 80px;
    margin-top: 30px;
    width: 100%;
    float: right;
    position: relative;
    z-index: 99;
  }
  /*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;
  }
  .foot .ft-contact b {
    text-align: center;
    width: 100%;
  }
  .foot .ft-nav {
    display: none;
  }
}
@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;
  }
  .mobile-nav-toggle {
    top: 5px;
  }
  /*about*/
  .about {
    padding: 20px 0 0;
  }
  .about_txt {
    font-size: 15px;
    line-height: 24px;
    margin: 15px auto;
    width: 88%;
  }
  .ab_list2 {
    margin-top: 30px;
  }
  .ab_list2 li {
    font-size: 15px;
  }
  .ab_list2 li b {
    font-size: 28px;
  }
  .ab_list2 li i {
    font-size: 14px;
    top: -10px;

  }
  .pro_content a {
    padding: 40px 20px;
  }
  .ab_bottom b {
    font-size: 24px;
  }
  .ab_bottom p {
    font-size: 18px;
  }
  .hezuo .swiper-slide a {
    padding: 5px;
    margin: 8px;
  }
  .ab_bottom {
    background: url(../images/about.jpg) no-repeat bottom;
    height: 300px;
  }
  .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;
  }
  .ys li {
    margin: 15px 0;
  }
  .ewm {
    display: none;
  }
}
@media screen and (max-width:640px) {
  .pro_content {
    flex-direction: column;
  }
  .main_title {
    padding: 5px;
  }
  #banner .swiper-slide .container { display:none;
    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;

  }
  /*news*/
  .news a {
    width: 100%;
  }
  .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;
  }
}
@media screen and (max-width:480px) {
  #header {
    height: 50px;
  }
  .top-box .logo {
    justify-content: flex-start;
    height: 50px;
  }
  .top-box .logo img {
    max-height: 40px;
  }
  .mobile-nav-toggle {
    top: 0;
  }
  .about-box {
    flex-direction: column;
  }
  .about_fl {
    width: 100%;
    padding: 0;
  }
  .ab_bottom b {
    font-size: 20px;
  }
  .ab_bottom {
    background: url(../images/about.jpg) no-repeat bottom;
    height: 340px;
  }
  .ys {
    height: 100% !important;
  }
  .ys ul {
    flex-direction: column;
  }
  .ys li {
    position: relative;
    overflow: hidden;
    width: 100% !important;
    border-right: 2px solid #fff;
  }
  .img_ar {
    width: 100% !important;
  }
}