@media (max-width: 1199px) {
  .bx-dn {
    display: none;
  }
  .bx-db {
    display: block;
  }
  .bx-w96 {
    width: 96%;
    padding-left: 2%;
    padding-right: 2%;
  }
  .header.fixed {
    width: 96%;
    padding-left: 2%;
    padding-right: 2%;
  }
  .nav li {
    padding-left: 18px;
    padding-right: 18px;
  }
  .about-index li {
    padding-top: 40px;
    padding-bottom: 30px;
  }
  .section03 .news-left {
    height: 1.8072rem;
  }
  .index-product li {
    height: 2.2259rem;
  }
}
@media (max-width: 1099px) {
  .section03 .news-left {
    margin-top: .2rem;
  }
}
@media (max-width: 991px) {
  .mx-db {
    display: block;
  }
  .mx-dn {
    display: none;
  }
  .mx-mt30 {
    margin-top: 30px;
  }
  .mx-fn {
    float: none;
  }
  .mx-tac {
    text-align: center;
  }
  .mx-mlr20 {
    margin-right: 20px;
    margin-left: 20px;
  }
  .mx-dib {
    display: inline-block;
  }
  .header {
    padding-bottom: 14px;
  }
  .header .search {
    height: 37px;
  }
  .header .search .search-ico {
    height: 37px;
  }
  .header .search .inp {
    line-height: 37px;
  }
  .header .search .btn {
    line-height: 37px;
  }
  .header .phone-ewm {
    height: 37px;
  }
  .nav {
    position: absolute;
    left: 0;
    top: 100px;
    width: 100vw;
    z-index: 55;
    background-color: #fff;
    margin-top: 0;
  }
  .nav li {
    float: left;
    width: 100%;
    text-align: center;
    padding: 10px 0;
    background: none;
  }
  .nav li .s-nav {
    height: auto;
    line-height: 26px;
    width: 100%;
    position: static;
    text-align: center;
    padding-top: 8px;
    padding-bottom: 5px;
    background-color: #eee;
  }
  .nav li .s-nav a {
    color: #666;
    width: 100%;
    font-size: 13px;
  }
  .section03 .news-left {
    width: 60%;
    margin-left: 20%;
    margin-right: 20%;
    height: 2.3121rem;
    margin-top: 0;
  }
  .section03 .news-right {
    width: 90%;
    margin-left: 5%;
    margin-right: 5%;
  }
  .section03 .news-right li {
    margin-top: 10px;
  }
  .index-product .p-bg {
    height: 20%;
  }
  .index-product .line {
    width: 75px;
    margin-top: 10px;
  }
  .index-product .p-text {
    height: 16%;
  }
  .index-product .p-d-text {
    margin-top: 15px;
  }
  .index-product .p-more {
    margin-top: 20px;
    width: 110px;
    height: 36px;
    line-height: 36px;
  }
  .index-video .video-right .ico {
    width: 56px;
    height: 56px;
    margin-top: -28px;
    margin-left: -28px;
    background-size: 56px 56px;
  }
  .footer dl {
    display: none;
  }
}
@media (max-width: 640px) {
  .sx-db {
    display: block;
  }
  .sx-dn {
    display: none;
  }
  .sx-w100 {
    width: 100%;
  }
  .sx-fn {
    float: none;
  }
  .sx-tac {
    text-align: center;
  }
  .sx-mt10 {
    margin-top: .1rem;
  }
  .sx-mb20 {
    margin-bottom: .2rem;
  }
  .sx-mt22 {
    margin-top: 22px;
  }
  .sx-mlr20 {
    margin-left: .2rem;
    margin-right: .2rem;
  }
  .text {
    font-size: 14px;
    line-height: 22px;
  }
  .text_s {
    font-size: 12px;
    line-height: 1.4;
  }
  .text_m {
    font-size: 16px;
    line-height: 1.3;
  }
  .text_b {
    font-size: 18px;
    line-height: 1.3;
  }
  .text_mb {
    font-size: 17px;
    line-height: 1.3;
  }
  .header .logo {
    width: 212px;
    height: 50px;
  }
  .header .search {
    height: 32px;
    overflow: initial;
  }
  .header .search .search-ico {
    height: 32px;
  }
  .header .search .search-div {
    position: relative;
    width: 25px;
  }
  .header .search form {
    display: none;
    position: absolute;
    z-index: 99999;
    right: 0;
    background-color: #eee;
    top: 52px;
    width: 200px;
  }
  .header .phone-ewm {
    height: 32px;
  }
  .header .nav-ico {
    width: 39px;
    height: 32px;
  }
  .nav {
    top: 74px;
  }
  .nav li {
    padding: 8px 0;
  }
  .about-index ul {
    margin-left: -2%;
  }
  .about-index li {
    width: 42.2%;
    margin-left: 2%;
    padding-top: .2rem;
    padding-bottom: .2rem;
    margin-bottom: .1rem;
  }
  .about-index .a-img {
    height: 62px;
    width: 62px;
    background-size: 62px 62px;
  }
  .about-index .a-more {
    width: 98px;
    line-height: 28px;
    height: 28px;
  }
  .section03 .news-left {
    width: 90%;
    margin-left: 5%;
    margin-right: 5%;
    height: 3.47rem;
  }
  .section03 .news-right {
    width: 90%;
    margin-left: 5%;
    margin-right: 5%;
  }
  .section03 .news-right li {
    margin-top: 10px;
  }
  .index-product ul {
    margin-left: 0%;
  }
  .index-product li {
    margin-left: 0%;
    height: 4.26rem;
  }
  .index-product li.act .p-text,
  .index-product li:hover .p-text {
    height: 33px;
  }
  .index-product .p-bg {
    display: none;
  }
  .index-product .line {
    display: none;
  }
  .index-product .p-text {
    padding-top: 10px;
    height: 33px;
    background-color: #2275d2;
  }
  .index-video {
    height: auto;
  }
  .index-video .video-left {
    width: 92%;
    margin-left: 4%;
    margin-right: 4%;
    height: auto;
    margin-bottom: .2rem;
  }
  .index-video .video-right {
    width: 92%;
    margin-left: 4%;
    margin-right: 4%;
    height: auto;
  }
  .index-video .video-right .ico {
    width: 40px;
    height: 40px;
    background-size: 40px 40px;
    margin-top: -20px;
    margin-left: -20px;
  }
  .section01h {
    display: block;
  }
  .section01 {
    display: none;
  }
  .footer .f-ewm {
    width: 80px;
    height: 99px;
  }
  .footer-b {
    padding-top: 5px;
    padding-bottom: 5px;
  }
  .footer-b p {
    padding-top: 5px;
    padding-bottom: 5px;
  }
   .fixed-top{
    bottom:.2rem;
    right:.2rem;
    width:.75rem;
    height:.88rem;
    background-size: .75rem .88rem;
  }
}
.lx{ width:293px; height:145px;}
.footer .f-ewm {
  width: 293px;
  height: ;
}
.sx-fn{
    text-align: center;}