@media screen and (min-width: 1921px) and (max-width: 4000px) {
  html {
    font-size: 120px;
  }
}
@media screen and (min-width: 1441px) and (max-width: 1600px) {
}
@media screen and (min-width: 1201px) and (max-width: 1440px) {
  html {
    font-size: 80px;
  }
  .container {
    width: 90vw;
  }
}
@media screen and (min-width: 981px) and (max-width: 1200px) {
  html {
    font-size: 60px;
  }
  .container {
    width: 90vw;
  }
  .k12-gl-gslb-3nf1-1-01-left dl {
    width: 31.33333%;
    float: left;
    background: #f0f0f0;
    margin: 0 1.3% 13px 0;
  }
}
@media screen and (min-width: 769px) and (max-width: 980px) {
  .k12-gl-gslb-3nf1-1-01-left dl {
    width: 48%;
    float: left;
    background: #f0f0f0;
    margin: 0 1.3% 13px 0;
  }
  .k12-gl-gslb-3nf1-1-01-left dl {
    width: 48%;
    float: left;
    background: #f0f0f0;
    margin: 0 1.3% 13px 0;
  }
  .g_pzbz dl {
    width: 50%;
  }
  iframe {
    width: 100% !important;
  }
  .tl-fdh-02{
    height: auto;
  }
  .tl-fdh-02 li{
    width: 25%;
  }
  .contactus ul li{
    width: 100%;
  }
  .p4-order-form-1-con label{
    text-align: left;
  }
  .p4-order-form-1-con{
    padding: .4rem 5%;
  }
  .p4-order-form-1-con .inputs, .p4-order-form-1-con li select,.p4-order-form-1-t1 textarea{
    width: 100%;
  }
  .p4-order-form-1-con .p4-order-form-1-b2{
    display: none;
  }
  .ysdzl,.ysdzr{
    width: 100%;
  }
  .odi4_c{
    display: block;
  }
  .odi4_l,.odi4_r{
    width: 100%;;
  }
  .gsjsl,.gsjsr{
    width: 100%;;
  }
  .cbgg-01{
    display: none;
  }
  .blk-xs,
  .blk-sm{
    width: 100%;
  }
  .cplb-3n-ts-03-list dl{
    width: 47%;
    margin-left: 1%;
  }
  .cplb-3n-ts-03-list dl:nth-child(2n){
    margin-right: 1%;
  }
  .cplb-3n-ts-03-list dl:nth-child(3n){
    margin-right:1%
  }
  .p15-showcase-left,
  .p15-showcase-right{
    width: 100%;
  }
  .pc-cx-tel-1{
    width: 98%;
  }
  .p14-product-2-list dl{
    width: 48%;
    margin-right: 1%;
    margin-bottom: 1%;
  }
  .p14-infolist-1-list dl{
    padding: .25rem;
  }
  .p14-infolist-1-list dt{
    width: 100%;
    margin-right: 0;
    float: none;
  }
  .homepage .g, .homepage .I .pic img{
    height: .5rem;
  }
  .cplb-3n-ts-03-list dt img{
    height: 2rem;
  }
}
@media (max-width: 768px) {
  html {
    font-size: 80px;
  }
  .header {
    height: 50px;
    padding: 0;
    top: 0;
    position: sticky;
    line-height: 50px;
  }
  .header .logo {
    width: 2rem;
  }
  .logo_txt {
    width: 1.7rem;
  }
  .nav,
  .header dl {
    display: none;
  }
  .m_nav {
    position: absolute;
    right: 15px;
    top: 16px;
    width: 25px;
    z-index: 99;
  }
  .m_nav i {
    display: block;
    height: 2px;
    background: #999;
    margin-bottom: 6px;
  }
  .header.on .m_nav i {
    background: #999;
  }
  .cross i:nth-of-type(1) {
    -webkit-transform: translateY(8px) rotate(-45deg);
    -ms-transform: translateY(8px) rotate(-45deg);
    transform: translateY(8px) rotate(-45deg);
  }
  .cross i:nth-of-type(2) {
    opacity: 0;
  }
  .cross i:nth-of-type(3) {
    -webkit-transform: translateY(-8px) rotate(45deg);
    -ms-transform: translateY(-8px) rotate(45deg);
    transform: translateY(-8px) rotate(45deg);
  }

  .container {
    width: 100%;
    padding: 0 15px;
    max-width: 100%;
  }

  .hidden-xs {
    display: none;
  }
  .visible-xs {
    display: block;
  }

  /**/
  .homepage .c .bd,
  .homepage .c > .container > .flex,
  .homepage .d .bd .flex {
    display: block;
  }
  .homepage .e .bd li {
    width: 33.333%;
  }
  .homepage .h .bd .flex {
    display: block;
  }
  .homepage .h .bd video {
    width: 100%;
    margin: 0.2rem 0 0;
  }
  .homepage .I .bd ul li {
    width: 33.333%;
  }
  .homepage .g .tabbox .flex {
    display: block;
  }
  .homepage .f .bd .flex {
    display: block;
  }
  .homepage .f .bd .flex_item + .flex_item {
    padding: 0.12rem 0 0;
  }
  .homepage .d .bd ul {
    padding: 0;
  }
  .homepage .d .bd .side {
    width: 100%;
  }
  .homepage .c .side {
    display: none;
  }
  .homepage .c .menu {
    width: 100%;
    margin: 0 0 0.2rem 0;
  }

  .footer ul,
  .footer .code {
    display: none;
  }
  .footer .ft .flex {
    display: block;
    line-height: 0.24rem;
  }
  .footer li img {
    width: 0.2rem;
  }
  .footer ol {
    padding: 0.2rem 0 0;
  }
  .footer .bd .flex {
    display: block;
  }
  .homepage .b,
  .homepage .c,
  .homepage .f,
  .homepage .g,
  .homepage .I {
    padding: 0.4rem 0;
  }
  .homepage .d .hd {
    height: 1.6rem;
    padding-top: 0.4rem;
  }
  .homepage .e {
    padding-top: 0.4rem;
  }
  .homepage .a .flex {
    display: block;
  }
  .homepage .a .search {
    display: flex;
    width: 100%;
    margin: 0.15rem 0 0;
  }
  .homepage .a .search .flex{
    width: 100%;
    display: flex;
    justify-content: space-between;
  }
  .homepage .banner img {
    height: 1.7rem;
    object-fit: cover;
  }
  .homepage .h .ft .swiper-slide::after {
    display: none;
  }
  .homepage .g ol li {
    width: 100%;
    padding: 0.1rem 0.15rem;
  }
  .homepage .g ol li + li {
    border: none;
  }
  .k12-gl-gslb-3nf1-1-01-left dl {
    width: 48%;
    float: left;
    background: #f0f0f0;
    margin: 0 1.3% 13px 0;
  }
  .g_pzbz dl {
    width: 50%;
  }
  iframe {
    width: 100% !important;
  }
  .tl-fdh-02{
    height: auto;
  }
  .tl-fdh-02 li{
    width: 25%;
  }
  .contactus ul li{
    width: 100%;
  }
  .p4-order-form-1-con label{
    text-align: left;
  }
  .p4-order-form-1-con{
    padding: .4rem 5%;
  }
  .p4-order-form-1-con .inputs, .p4-order-form-1-con li select,.p4-order-form-1-t1 textarea{
    width: 100%;
  }
  .p4-order-form-1-con .p4-order-form-1-b2{
    display: none;
  }
  .ysdzl,.ysdzr{
    width: 100%;
  }
  .odi4_c{
    display: block;
  }
  .odi4_l,.odi4_r{
    width: 100%;;
  }
  .gsjsl,.gsjsr{
    width: 100%;;
  }
  .cbgg-01{
    display: none;
  }
  .blk-xs,
  .blk-sm{
    width: 100%;
  }
  .cplb-3n-ts-03-list dl{
    width: 47%;
    margin-left: 1%;
  }
  .cplb-3n-ts-03-list dl:nth-child(2n){
    margin-right: 1%;
  }
  .cplb-3n-ts-03-list dl:nth-child(3n){
    margin-right:1%
  }
  .p15-showcase-left,
  .p15-showcase-right{
    width: 100%;
  }
  .pc-cx-tel-1{
    width: 98%;
  }
  .p14-product-2-list dl{
    width: 48%;
    margin-right: 1%;
    margin-bottom: 1%;
  }
  .p14-infolist-1-list dl{
    padding: .25rem;
  }
  .p14-infolist-1-list dt{
    width: 100%;
    margin-right: 0;
    float: none;
  }
  .homepage .g .pic,
  .homepage .g .pic img{
    width: 100%;
  }
  /*.homepage .g .pic img, .homepage .I .pic img{
    height: .5rem;
  }*/
  .cplb-3n-ts-03-list dt img{
    height: 2rem;
  }
}