@media only screen and (max-width: 1720px){

}
@media only screen and (max-width: 1680px){
    

}
@media only screen and (max-width: 1600px){

}
@media only screen and (max-width: 1480px){
body{
    zoom:0.85;
}
}
@media only screen and (max-width: 1366px){

}
@media only screen and (max-width: 1280px){

.main,.centerbox{
    width: 94%;
}

}
@media only screen and (max-width: 1200px){

}

@media only screen and (max-width: 1152px){

}
@media only screen and (max-width: 1024px){
.nav-ul>li {
    margin-left: 40px;
}
}
@media only screen and (max-width: 900px){
.header {
    position: fixed;
    background: #333333;
    box-shadow: 0 3px 5px rgba(0,0,0,0.1);
}
.navBox,.header ul li,.head_menu,.nav_box{
    display: none;
}
.header ul li.logo{
    display: block;
}
.head_ri{
    height: 100%;
}
.menu{
    display: flex;
    align-items: center;
}
.head_fix {
    display: block;
}
.index1 ul li {
    width: 48.5%;
    margin-bottom: 20px;
}
.index2 ul li {
    width: 33.33%;
    height: 300px;
}
.ind4_lf,.ind4_ri{
    float: none;
    width: 100%;
}
.ind4_lf{
    margin-bottom: 20px;
}
.ind4_ri ul li h3 span {
    float: none;
    display: block;
    margin-top: 5px;
}
.index5 ul li {
    width: 32%;
    margin-right: 2%;
}
.index5 ul li:nth-child(3n) {
    margin-right: 0;
}
.foot_con {
    flex-wrap: wrap;
}
.form,.bot_con {
    width: 100%;
}
.form:after {
    display: none;
}
.form form {
    width: 100%;
}
.form input[type="submit"] {
    margin-bottom: 0;
}
.con_text {
    text-align: left;
}
.bot_con ul {
    justify-content: flex-start;
}
.bot_con ul li{
    margin-right: 15px;
}
.products .centerbox ul li {
    width: 48.5%;
}
.pre_list,.pro_content {
    width: 100%;
}
.pre_list{
    margin-bottom: 20px;
}
.after .bg {
    padding-right: 30px;
}
.news .news_left,#pages {
    width: 100%;
}
.news .news_right {
    display: none;
}





















}
@media only screen and (max-width: 800px){
.ban1 h3{
    display: none;
}
}
@media (max-width: 750px){
}
@media only screen and (max-width: 600px){
body{
    zoom:1;
}

.header {
    height: 50px;
}
.sousuo  {
    display: none;
}
.logo{
    width: 80%;
}
.header ul li a {
    height: 50px;
    line-height: 50px;
}
.menu{
    width: 30px;
}
.nav {
    top: 50px;
    overflow: scroll;
    overflow-x: hidden;
}
.nav-left{
    top: 50px;
}
.a {
    font-size: 16px;
    line-height: 46px;
}

.levell {
    font-size: 14px;
    line-height: 40px;
}
.head_fix {
    height: 50px;
}
.onli .a{
    background-size: 8px 15px;    
}
.l.bg .a{
    background-size: 15px 8px;  
}

.aa .aaz,.aa .aay{
    width: 30px;
    height: 30px;
    margin-top: -15px;
}
.aa .aaz{
    left: 10px;
}
.aa .aay {
    right: 10px;
}
.banner .swiper-container-horizontal>.swiper-pagination-bullets {
    bottom: 10px;
}
.ban {
    position: unset;
}
.ban form {
    padding: 20px 0;
}
.ban1{
    width: 100%;
    text-align: center;
}
.ban1 h5 {
    font-size: 18px;
    margin-bottom: 15px;
}
.ban input {
    flex: 1;
    width: 100%;
    font-size: 14px;
    line-height: 38px;
    height: 40px;
}
.ban button {
    width: 80px;
    font-size: 16px;
    line-height: 40px;
}
.title p {
    font-size: 20px;
}
.title span {
    font-size: 16px;
}
.index1 {
    padding: 40px 0 20px;
}
.index1 ul li img {
    max-width: 60%;
}
.index1 ul li h3 {
    font-size: 16px;
}
.index1 ul li h5 {
    font-size: 12px;
    line-height: 22px;
}
.mb30 {
    margin-bottom: 20px;
}
.ind2_ms {
    font-size: 12px;
    line-height: 24px;
    margin-bottom: 25px;
}
.index2 ul li {
    width: 50%;
    height: 200px;
}
.pro_des2 p {
    font-size: 16px;
}
.pro_des2 span {
    font-size: 12px;
}
.index3 {
    position: relative;
    margin: 40px 0;
    padding: 30px 0;
}
.index3 img{
    display: none;
}
.ind3 {
    padding: 20px 10px;
}
.ind3_ti p {
    font-size: 20px;
}
.ind3_ti span {
    font-size: 16px;
}
.ind3_con {
    font-size: 12px;
    line-height: 24px;
    margin-bottom: 15px;
}
.ind3_ul ul li {
    width: 50%;
    margin-bottom: 20px;
}
.ind3_ul ul li h3 {
    font-size: 24px;
}
.ind3_ul ul li .xian2 {
    margin: 5px auto 10px;
}
.index4 {
    padding: 0 0 40px;
}
.ind4_lf_con {
    padding: 15px 10px;
}
.ind4_lf_con h5 {
    line-height: 24px;
}
.ind4_ri ul li {
    padding-bottom: 15px;
    margin-bottom: 15px;
}
.index5 {
    padding: 40px 0 20px;
}
.con_text {
    font-size: 14px;
    line-height: 26px;
}
.copy *{
    line-height: 24px;
    padding: 10px 0;
}
.products .centerbox {
    padding: 40px 0;
}
.products .title {
    margin-bottom: 20px;
}
.pro_des p {
    font-size: 16px;
}
.pro_li_ti {
    padding: 10px 0;
}
.pro_li_ti p {
    font-size: 18px;
}
.pro_li_ti span {
    font-size: 14px;
}
.pre_list ul li {
    padding: 5px 0;
}
.pre_list ul li p {
    font-size: 16px;
}
.pro_content {
    padding: 10px;
    padding-bottom: 30px;
    margin-bottom: 40px;
}
.pro_det_ti {
    font-size: 18px;
    line-height: 40px;
    height: 40px;
    margin: 10px 0;
}
.pro_con_det {
    font-size: 12px;
    line-height: 24px;
    padding-top: 20px;
    padding-bottom: 40px;
    word-break:break-all;
}
.advantage,.proces {
    padding-bottom: 40px;
}
.proces .title {
    margin-bottom: 25px;
}
.after {
    padding: 40px 0;
}
.after ul li {
    width: 50%;
    position: relative;
}
.after .bg {
    padding: 20px 10px;
    min-height: auto;
}
.after .bg * {
    font-size: 12px;
    line-height: 22px;
}
.news ul li a {
    flex-wrap: wrap;
}
.news_img {
    width: 100%;
    margin-right: 0;
    margin-bottom: 10px;
}
.news .news_left {
    padding: 0 10px;
    padding-top: 30px;
}
.news ul {
    margin-top: 10px;
}
.news .tex_right h3 {
    font-size: 16px;
    line-height: 26px;
    min-height: auto;
    padding-bottom: 5px;
}
.news .tex_right p{
    font-size: 14px;
}
.news .tex_right span, .news .tex_right font {
    font-size: 14px;
    margin-top: 10px;
}
#pages {
    padding-bottom: 50px;
}
.sm_nav .main a {
    line-height: 24px;
}
.con_tit {
    padding-bottom: 15px;
    padding-top: 0;
}
.con_tit h2 {
    font-size: 16px;
    padding-bottom: 5px;
}
.con_tit h3 {
    padding-bottom: 5px;
}
.content * {
    font-size: 14px;
    line-height: 26px;
}
.content {
    font-size: 14px;
    line-height: 26px;
    padding-bottom: 40px;
}
.news_detl {
    padding-bottom: 20px;
}
.banner .main {
    padding: 40px 0;
}
.banner h2 {
    font-size: 24px;
}
.banner p {
    font-size: 14px;
}
.banner form textarea {
    width: 75%;
    height: 161px;
}
.search {
    width: 23%;
}
.search_btn {
    height: 66px;
}
.banner1{
    height: auto;
}
.order {
    padding-top: 40px;
    padding-bottom: 40px;
}
.order ul p {
    font-size: 24px;
}
.order ul span {
    font-size: 18px;
}
.about_tit {
    margin-bottom: 15px;
}
.about_tit h3 {
    font-size: 18px;
}
.about_tit span {
    font-size: 16px;
}
.ab1 ul li {
    min-height: 180px;
}
.about_con .content {
    padding-bottom: 15px;
}
.ab1 {
    margin-bottom: 30px;
}
.contact .city {
    width: 100%;
}
.contact .city li {
    font-size: 14px;
    height: 26px;
    line-height: 26px;
    border-radius: 15px;
}
.add {
    margin-top: 15px !important;
}
.add li div {
    line-height: 26px;
}
.contact_aa {
    padding-bottom: 40px;
}
}
@media only screen and (max-width: 375px){

}
@media only screen and (max-width: 325px){
}