@media only screen and (max-width: 1020px) {
  body {
    font-size: 0.16rem;
  }
  #index .nr_one>div{
      width: 100%;
  }
  .db {
    display: none;
  }
  .dn {
    display: block;
  }
  header {
    padding: 0 0.2rem;
    height: 1rem;
    position: static;
  }
  header .logo {
    width: 1.77rem;
  }
  header .menu {
    width: 0.5rem;
  }
  header .ul {
    width: 50%;
    position: fixed;
    top: 0;
    left: 0;
    background: #fff;
    z-index: 999;
  }
  header li > a{
      line-height: 0.5rem;
  }
  header .fg img{
      display: none;
  }
  header .ul ul {
    flex-direction: column;
  }
  header .ul ul li {
      position:relative;
    margin: 0.2rem 0;
  }
  header .fg{
      padding: 0;
      position: static;
      flex-direction: column;
  }
  header .fg span{
      font-size: 0.16rem;
      margin: 0.1rem 0.2rem;
      
  }
  header .ul ul li a {
    font-size: 0.25rem;
    color: #333;
  }
  header .ul ul .li-s a::after {
    background: #fff;
    margin-top: 0;
  }
  footer img {
    width: 1.04rem;
  }
  footer .core {
        padding: 0 0.2rem;
    flex-direction: column;
  }
  footer .dl {
    flex-direction: column;
    width: 100%;
  }
  footer .dl dl {
    width: 100%;
    display: flex;
    margin: 0.1rem 0;
    flex-wrap: wrap;
  }
  footer .dl dl dt a {
    display: block;
  }
  footer .dl dl dd {
    margin: 0;
    margin: 0 0.2rem;
  }
  footer .dl dl dd a {
    display: block;
    font-size: 0.24rem;
  }
  #index .nr_one {
    padding: 0 0.2rem;
    flex-direction: column;
  }
  #index .nr_one ul li img {
    width: 100%;
  }
  #index .nr_one ul li h1 {
    font-size: 0.32rem;
  }
  #index .nr_one ul li a{
      width: 100%;
  }
  #index .nr_one ul li .time {
    font-size: 0.18rem;
    margin: 0.1rem 0;
  }
  #index .nr_one ul li p {
    font-size: 0.24rem;
    margin: 0.1rem 0;
  }
  #index .nr_one .banner {
    margin: 0.2rem 0;
  }
  #index .nr_three {
    padding: 0 0.2rem;
    flex-direction: column;
  }
  #index .nr_four {
     padding: 0 0.2rem;
    flex-direction: column;
  }
  #index .nr_four .banner .core {
    width: 80%;
  }
  .title h1 {
    font-size: 0.32rem;
  }
  #index .nr_four .box img{
     width: 1.80rem;
     height: auto;
  }
  #index .nr_four .box p{
      font-size: 0.18rem;
      line-height: 0.45rem;
  }
  #index .nr_four .box h3{
      font-size: 0.24rem;
      margin: 0.2rem 0;
  }
  .title p {
    margin: 0.2rem 0;
    font-size: 0.14rem;
  }
  .title .line {
    width: 0.5rem;
    height: 0.05rem;
  }
  .title a {
    font-size: 0.24rem;
  }
  .about_us {
    flex-direction: column;
  }
  .about_us .about_us_l {
    height: auto;
  }
  .about_us .about_us_l h1 {
    font-size: 0.36rem;
  }
  .about_us .about_us_l a {
      transform: none;
    width: 43%;
    height: 1rem;
    font-size: 0.25rem;
    line-height: 1rem;
    float: left;
    margin: 0.2rem;
  }
  .about_us .about_us_r {
    padding: 0 0.2rem;
    width: 100%;
    margin: 0.2rem 0;
  }
  .about_us dl dd {
    font-size: 0.24rem !important;
line-height: 0.36rem !important;
    margin: 0.2rem 0;
  }
  .crumbs span,
  .crumbs a {
    font-size: 0.16rem !important;
  }
  #product .product_nr {
    flex-direction: column;
    align-items: center;
  }
  #product .product_nr .nr_l {
    width: 100%;
    padding: 0.5rem;
    height: auto;
    display: block;
  }
  #product .product_nr .nr_l h1 {
    font-size: 0.36rem;
  }
.head .head_l span{
    font-size: 0.24rem;
}
  #product .product_nr .nr_l a {
    /*margin-left: 50%;*/
    /*transform: translate(-50%);*/
    width: 43%;
    height: 0.8rem;
    line-height: 0.8rem;
    font-size: 0.3rem;
    float: left;
    margin:0.2rem ;
  }
  #product .product_nr .nr_r .product_list li {
    width: 47%;
    margin-right: 0.2rem !important;
  }
  #product .product_nr .nr_r .product_list li .box h3 {
    font-size: 0.32rem;
    margin: 0.2rem 0;
  }
  #product .product_nr .nr_r .product_list li .box p {
    font-size: 0.24rem;
    line-height: 0.45rem;
  }
  #product .product_d .ms {
    margin: 0.2rem 0;
    width: 100%;
    padding: 0.5rem;
  }
  #product .product_d .ms dl {
    margin: 0.2rem 0;
  }
  #product .product_d .ms dl dd {
    font-size: 0.14rem;
    margin: 0.2rem 0;
    line-height: 0.45rem;
  }
  #product .product_d .core {
    margin-bottom: 0.4rem;
  }
  #product .product_d .nr {
    padding: 0.4rem;
    flex-direction: column;
    margin: 0.2rem 0;
  }
  #product .product_d .nr .nr_r {
    margin: 0;
  }
  #product .product_d .nr .nr_r h1 {
    font-size: 0.3rem;
    padding: 0.2rem 0;
  }
  #product .product_d .nr .nr_r .purchase {
    position: static;
    width: 100%;
    margin: 0.2rem 0;
  }
  #product .product_d .nr .nr_l {
    width: 100%;
    height: auto;
  }
  #product .product_d .nr .nr_l .button {
    bottom: 0.33rem;
  }
  #nwes .nwes_nr {
    flex-direction: column;
  }
  #nwes .nwes_nr .nr_l {
    width: 100%;
    padding: 0.5rem;
    height: auto;
    display: block;
  }
  #nwes .nwes_nr .nr_l h1 {
    font-size: 0.36rem;
  }
  #nwes .nwes_nr .nr_l a {
    /*margin-left: 50%;*/
    /*transform: translate(-50%);*/
    width: 43%;
    height: 0.8rem;
    line-height: 0.8rem;
    font-size: 0.3rem;
    float: left;
    margin: 0.2rem;
  }
  #nwes .nwes_nr .nr_r {
    padding: 0.2rem;
    margin: 0;
  }
  #nwes .news_d h1 {
    font-size: 0.3rem;
    margin: 0.2rem 0;
  }
  #nwes .news_d p {
    font-size: 0.12rem;
    margin: 0.2rem 0;
  }
  #nwes .news_d dl {
    padding: 0 0.2rem;
  }
    #nwes .news_d dl img{
    width: 100% !important;
      height: auto !important;
  }
  #nwes .news_d dl dd {
    font-size: 0.16rem;
  }
  #group_brand .brand_nr {
    flex-direction: column;
  }
  #group_brand .brand_nr .nr_l {
    width: 100%;
    padding: 0.5rem;
    height: auto;
    display: block;
  }
  #group_brand .brand_nr .nr_l h1 {
    font-size: 0.36rem;
  }
  #group_brand .brand_nr .nr_l a {
    /*margin-left: 50%;*/
    /*transform: translate(-50%);*/
    width: 43%;
    height: 0.8rem;
    line-height: 0.8rem;
    font-size: 0.3rem;
    margin: 0.2rem;
    float: left;
  }
  #group_brand .brand_nr .nr_r {
    padding: 0.2rem;
    margin: 0;
  }
  #group_brand .brand_nr .nr_r .head_list h1 {
    font-size: 0.3rem;
  }
  #group_brand .brand_nr .nr_r .head_list p {
    margin: 0.2rem 0;
    font-size: 0.16rem;
  }
  #group_brand .brand_nr .nr_r .head_list .text {
    font-size: 0.24rem;
    line-height:0.45rem;
  }
  #group_brand .brand_nr .nr_r .head_list .see {
    width: 1.5rem;
    height: 0.7rem;
    line-height: 0.7rem;
    font-size: 0.18rem;
  }
  #group_brand .brand_nr .nr_r .head_list li {
    flex-direction: column;
  }
  #group_brand .brand_nr .nr_r .head_list i img {
    width: 100%;
  }
  #group_brand .brand_d .logo_t {
    margin: 0.2rem 0;
  }
  #group_brand .brand_d .icon_box {
    margin: 0.2rem 0;
  }
  #group_brand .brand_d .icon_box a {
    font-size: 0.2rem;
  }
  #group_brand .brand_d h1 {
    font-size: 0.3rem;
    margin: 0.2rem 0;
  }
  #group_brand .brand_d p {
    font-size: 0.12rem;
    margin: 0.2rem 0;
  }
  #group_brand .brand_d dl {
    padding: 0 0.2rem;
  }
  #group_brand .brand_d dl img{
    width: 100% !important;
    height: auto !important;
  }
  #group_brand .brand_d dl dd {
    font-size: 0.16rem;
    margin: 0.2rem 0;
  }
  #group_brand .brand_d .pian {
    padding: 0 0.2rem;
  }
  #contact_us .contact_us_nr {
    margin: 0.2rem 0;
    flex-direction: column;
  }
  #contact_us .contact_us_nr .nr_l {
    width: 100%;
    padding: 0.5rem;
    height: auto;
    display: block;
  }
  #contact_us .contact_us_nr .nr_l h1 {
    font-size: 0.36rem;
  }
  #contact_us .contact_us_nr .nr_l a {
    /*margin-left: 50%;*/
    /*transform: translate(-50%);*/
    width: 43%;
    height: 0.8rem;
    line-height: 0.8rem;
    font-size: 0.3rem;
    margin: 0.2rem;
      float: left;
  }
  #contact_us .contact_us_nr .nr_r {
    padding: 0.2rem;
    margin: 0;
  }
  #contact_us .contact_us_nr .liuyan .input_box i {
    width: 20%;
  }
  #contact_us .contact_us_nr .liuyan .input_box span {
    margin-left: 0.24rem;
  }
  #contact_us .contact_us_nr .liuyan form {
    width: 100%;
    margin: 0.2rem 0;
  }
  #contact_us .contact_us_nr .liuyan form .textarea_box i {
    width: 20%;
  }
  #contact_us .contact_us_nr .liuyan form .textarea_box span {
    margin-left: 0.24rem;
  }
  #contact_us .contact_us_nr .liuyan form .textarea_box textarea {
    width: 71%;
    font-size: 0.24rem;
  }
  #contact_us .contact_us_nr .business {
    width: 100%;
  }
  #contact_us .contact_us_nr .business ul {
    flex-wrap: wrap;
  }
  #contact_us .contact_us_nr .business ul li {
    width: 50%;
  }
  #contact_us .contact_us_nr .business ul li img{
      width: 0.3rem;
  }
  #contact_us .contact_us_nr .nr_l p{
      font-size: 0.18rem;
  }
  .about_us .about_us_l p{
      font-size: 0.18rem;
  }
  #contact_us .contact_us_nr .business ul li p {
    font-size: 0.28rem;
    margin: 0.2rem 0;
  }
  #contact_us .contact_us_nr .business ul li p:nth-child(3) {
    font-size: 0.24rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  #contact_us .contact_us_nr .business .map {
    width: 100%;
    height: 6rem;
    margin: 0.5rem 0;
  }
  #video_Center .video_nr {
    flex-direction: column;
  }
  #video_Center .video_nr .nr_l {
    width: 100%;
    padding: 0.5rem;
    height: auto;
  }
  #video_Center .video_nr .nr_l h1 {
    font-size: 0.36rem;
  }
  #video_Center .video_nr .nr_l a {
    margin-left: 50%;
    transform: translate(-50%);
    width: 50%;
    height: 0.8rem;
    line-height: 0.8rem;
    font-size: 0.3rem;
  }
  #video_Center .video_nr .nr_r {
    margin: 0;
  }
  #video_Center .video_nr .video_list ul li p {
    font-size: 0.16rem;
  }
  #video_Center .video_nr .video_d p {
    font-size: 0.2rem;
    margin: 0.2rem 0;
  }
  #video_Center .video_nr .video_d h1 {
    font-size: 0.45rem;
    margin: 0.2rem 0;
  }
  .pagination a{
      border:none;
      font-size: 14px;
    vertical-align: middle;
    color: #333;
    display: inline-block;
    padding: 4px 0;
    margin: 0 3px;
  }
  .pageRemark{
      display: none;
  }
  .paging {
    margin: 0.5rem 0;
    flex-wrap: wrap;
  }
  .paging div {
    display: none;
  }
  .paging a {
    font-size: 0.14rem;
  }
  .paging span {
    font-size: 0.14rem;
  }
  .head .head_r {
    display: none;
  }
  .head .head_r span {
    font-size: 0.18rem;
    margin-left: 0.2rem;
  }
  .pian {
    margin-top: 0.2rem;
    padding: 0.2rem 0;
    flex-direction: column;
  }
  .pian a {
    font-size: 0.16rem;
  }
  .pian > div {
    margin: 0.2rem 0;
  }
  #nwes .nwes_nr .nr_r .news_list h1{
       display: -webkit-box;
            -webkit-line-clamp:1;
            -webkit-box-orient: vertical;
            overflow: hidden;

      font-size: 0.28rem;
  }
  #nwes .nwes_nr .nr_r .news_list li>a img{
        width: 140px;
        height: 90px;
  }
  #nwes .nwes_nr .nr_r .news_list p{
      font-size: 0.18rem;
      margin: 0.2rem 0;
  }
  #nwes .nwes_nr .nr_r .news_list .text{
      font-size: 0.18rem;
      line-height: normal;
  }
  #contact_us .contact_us_nr .liuyan .input_box input{
      font-size: 0.24rem;
  }
  #contact_us .contact_us_nr .liuyan form .submit{
      font-size: 0.24rem;
     margin-top: 0.8rem;
  }
}