/**/

@media screen and (min-width: 1441px) and (max-width: 1600px) {
  html {
    font-size: 90px;
  }
}
@media screen and (min-width: 1201px) and (max-width: 1440px) {
  html {
    font-size: 80px;
  }
}
@media screen and (min-width: 981px) and (max-width: 1200px) {
  html {
    font-size: 70px;
  }
}
@media screen and (min-width: 769px) and (max-width: 980px) {
  .header .nav {
    display: none;
  }
  .container {
    width: 100%;
    padding: 0 15px;
    max-width: 100%;
  }

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

/**/
@media (max-width: 768px) {
  .m_nav {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translate(0, -50%);
    width: 25px;
    z-index: 99;
  }
  .m_nav i {
    display: block;
    height: 2px;
    background: #333;
  }
  .m_nav i + i {
    margin-top: 0.06rem;
  }
  .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%;
  }
  .header {
    background: #fff;
    z-index: 999;
    position: sticky;
    box-shadow: 0 0 0.1rem rgba(0, 0, 0, 0.1);
    top: 0;
  }
  .header .logo img {
    width: 0.8rem;
  }
  .hidden-xs,
  .header .nav,
  .footer .bd ul,
  .homepage .three .flex_item,
  .header_top {
    display: none;
  }
  .visible-xs {
    display: block;
  }
  .footer {
    font-size: 0.14rem;
  }
  .footer .hd {
    font-size: 0.16rem;
    line-height: 0.22rem;
    height: auto;
    padding: 0.3rem 0.15rem;
  }
  .footer .bd ol li {
    flex: 1;
  }
  .footer .bd ol li + li {
    margin-left: 0.15rem;
  }
  .footer .bd ol li img {
    height: 0.8rem;
  }
  .footer .hd a {
    width: 100%;
    height: 0.45rem;
    font-size: 0.16rem;
    margin-top: 0.2rem;
  }
  .homepage {
    font-size: 0.14rem;
  }
  .homepage .banner {
    height: calc(100vh - 0.95rem);
  }
  .homepage .banner .bd {
    font-size: 0.18rem;
    line-height: 0.24rem;
  }
  .homepage .banner .bd h3 {
    font-size: 0.36rem;
  }
  .homepage .four .flex,
  .homepage .one .bd,
  .footer .hd {
    display: block;
  }
  .homepage .two .bd ul li,
  .homepage .fire .bd ul li {
    width: 100%;
  }
  .homepage .three .flex {
    flex-wrap: wrap;
  }
  .homepage .one {
    padding-top: 0.3rem;
  }
  .title_common {
    font-size: 0.24rem;
  }
  .title_common .btn {
    width: 0.8rem;
    height: 0.3rem;
  }
  .title_common .btn span {
    font-size: 0.14rem;
  }
  .homepage .one .bd {
    margin-top: 0.2rem;
  }
  .homepage .one .bd .pic {
    width: 100%;
  }
  .homepage .one .bd .flex_item {
    padding: 0.15rem;
  }
  .homepage .one .bd .flex_item {
    font-size: 0.15rem;
    line-height: 0.2rem;
  }
  .homepage .two,
  .homepage .four {
    padding: 0.3rem 0;
  }
  .homepage .two .bd {
    margin-top: 0.3rem;
  }
  .homepage .two .bd ul li dt:after {
    margin: 0.15rem auto;
  }
  .homepage .two .bd ul li dt {
    font-size: 0.5rem;
  }
  .homepage .two .bd ul li p {
    line-height: 0.2rem;
    margin: 0.15rem 0;
  }
  .homepage .three {
    height: auto;
    padding: 0.2rem 0;
  }
  .homepage .three dt {
    font-size: 0.24rem;
  }
  .homepage .three dl {
    padding: 0.15rem 0;
    width: 33.333%;
  }
  .homepage .four {
    text-align: center;
  }
  .homepage .four .side span {
    position: static;
    line-height: 0.4rem;
    width: 100%;
    font-size: 0.24rem;
  }
  .homepage .four .side {
    width: 100%;
    padding: 0;
    margin-top: 0.3rem;
  }
  .homepage .four .side:after {
    display: none;
  }
  .homepage .fire {
    padding-top: 0.3rem;
  }
  .homepage .fire .bd {
    margin-top: 0.3rem;
  }
  .homepage .fire .bd ul .flex {
    height: auto;
    display: block;
    border-radius: 0.15rem !important;
    padding: 0.15rem;
  }
  .homepage .fire .bd ul dt {
    text-align: center;
  }
  .homepage .fire .bd ul .pic {
    margin: 0 auto;
  }
  .homepage .fire .bd ul dd {
    line-height: 0.24rem;
    margin-top: 0.1rem;
  }
  .homepage .six {
    padding: 0.3rem 0;
  }
  .homepage .six .box::before,
  .homepage .six .box::after {
    width: 1rem;
  }
  .txtMarquee-left .bd ul li {
    width: 1.3rem;
    height: 0.6rem;
  }
  /**/
  .banner_info img {
    height: 2rem;
  }
  .banner_info {
    font-size: 0.3rem;
  }
  .aboutus .two .bd ul {
    margin: -0.05rem;
  }
  .aboutus .two .bd ul li {
    width: 100%;
    padding: 0.05rem;
  }
  .aboutus .three .bd li .line {
    display: none;
  }
  .aboutus,
  .aboutus .one .box p {
    font-size: 0.14rem;
  }
  .aboutus .one,
  .aboutus .two,
  .aboutus .three {
    padding: 0.3rem 0;
  }
  .aboutus .one .flex {
    display: block;
  }
  .aboutus .one .bd {
    margin-top: 0.7rem;
  }
  .aboutus .one .box {
    margin: 0;
    padding: 0 0.15rem 0.15rem;
    min-height: auto;
  }
  .aboutus .one .pic {
    width: 100%;
  }
  .aboutus .one .box p {
    line-height: 0.22rem;
  }
  .aboutus .one .box h3 {
    padding: 0.15rem 0;
    font-size: 0.18rem;
  }
  .aboutus .two .bd {
    padding-top: 0.3rem;
  }
  .aboutus .two .bd ul .box {
    padding: 0.15rem;
    min-height: auto;
  }
  .aboutus .two .bd ul p {
    line-height: 0.22rem;
  }
  .aboutus .two .bd dt {
    font-size: 0.36rem;
  }
  .aboutus .two .bd dd span {
    font-size: 0.16rem;
  }
  .aboutus .two .bd ul .pic {
    width: 1rem;
  }
  .aboutus .three .bd li .year {
    font-size: 0.24rem;
  }
  .aboutus .three .bd li {
    padding-bottom: 0.2rem;
  }
  .aboutus .three .bd {
    margin-top: 0.3rem;
  }
  .aboutus .three .bd li:last-child .line {
    display: block;
  }
  /**/
  .CERTIFICATES,
  .Customers,
  .ProductS,
  .Contact {
    padding: 0.3rem 0;
    font-size: 0.14rem;
  }
  .CERTIFICATES .bd {
    padding-top: 0.3rem;
  }
  .CERTIFICATES .bd ul {
    margin: -0.05rem;
  }
  .CERTIFICATES .bd ul li {
    width: 50%;
    padding: 0.05rem;
  }
  .CERTIFICATES .bd ul li a {
    height: 1.6rem;
  }
  .pages,
  .Customers .bd,
  .ProductS .bd {
    margin-top: 0.3rem;
  }
  .Customers .box ul li {
    width: 50%;
  }
  .ProductS .bd ul li {
    width: 100%;
  }
  /**/
  .Contact .box .flex {
    display: block;
  }
  .Contact .box {
    margin-top: 0.3rem;
    padding: 0;
  }
  .Contact .box .side {
    width: 100%;
  }
  .Contact .box .bd p {
    font-size: 0.18rem;
  }
  .Contact .box .bd {
    padding: 0.15rem;
  }
  .Contact .box .bd li {
    line-height: 0.24rem;
  }
  .Contactbottom {
    padding: 0.15rem;
  }
  .Contactbottom .flex {
    display: block;
    position: relative;
  }
  .Contactbottom .flex .flex_item + .flex_item {
    margin: 0;
  }
  .Contactbottom h4 {
    font-size: 0.18rem;
    padding: 0.15rem 0;
  }
  .Contactbottom .side {
    width: 100%;
  }
  .Contactbottom .code {
    position: absolute;
    right: 0;
    top: 0.54rem;
    height: 0.4rem;
    margin: 0;
  }
  .Contactbottom .input {
    height: 0.4rem;
    font-size: 0.14rem;
  }
  .Contactbottom .btn {
    height: 0.5rem;
    width: 100%;
    margin-top: 0.2rem;
    font-size: 0.14rem;
  }
  .aboutus .two .bd ul p {
    word-break: break-all;
  }
  .mask .dialog .bd {
    padding: 0 0.15rem 0.3rem;
  }
  .mask .dialog .title {
    height: 0.5rem;
    padding: 0 0.15rem;
  }
  .mask,
  .pop,
  .mask .dialog .bd textarea {
    font-size: 0.16rem;
  }
  .mask .dialog .bd h3 {
    padding: 0.2rem 0 0.1rem;
  }
  .mask .dialog .bd .input {
    font-size: 0.14rem;
    height: 0.5rem;
  }
  .mask .dialog .ft .btn {
    width: 100%;
    height: 0.5rem;
    font-size: 0.16rem;
  }
  .mask .dialog .title i {
    font-size: 0.2rem;
  }
  .pages a {
    width: 0.4rem;
    height: 0.4rem;
  }
}