@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: 1440px){
    
}
@media only screen and (max-width: 1366px){
    

}
@media only screen and (max-width: 1280px){
.main{
    width: 93%;
}
.nav-ul>li+li{
    margin-left: 0px;
}
.bj{
    background: url(../images/bj.png) center;
    background-size: 149%;
}
}
@media only screen and (max-width: 1152px){
.navBox {
    display: none;
}
.menu {
    display: block;
    position: absolute;
    right: 0;
    top: 50%;
    transform: translate(0%, -50%);
    cursor: pointer;
}
.footer1 {
    padding-right: 4%;
}
}
@media only screen and (max-width: 1024px){
.gun_box .swiper-button-next,.gun_box .swiper-button-prev{
    width: 30px;
    height: 60px;
}




}
@media only screen and (max-width: 768px){
	
	
	.footer2 img {
		width: 110px;
	}
	
	
.header{
    position: fixed;
    top: 0;
    left: 0;
    height: 90px;
}
.nav {
    top: 90px;
}
.nav-left {
    top:90px;
}
.header_fixd {
    display: block;
    height: 90px;
}
.a{
    padding-left: 8%;
}
.levela {
    padding-left: 16%;
}
.banner_pc{
    display: none;
}
.banner_m{
    display: block;
}
.footer {
    padding: 30px 0;
}
.footer1 {
    width: 65%;
    padding-right: 0;
}
.footer h1 {
    font-size: 20px;
    margin-bottom: 10px;
}
.footer2 {
    width: auto;
    float: right;
    border:none;
}
.footer2 h1 {
    text-align: left;
}
.mh{
    min-height: 100%;
}
.footer3 {
    width: 100%;
    float: none;
    margin-top: 20px;
}
.footer3 form input {
    width: 100%;
}
.cle{
    clear: both;
}
.bj{
    background: #f7f9fa;
}
.lf,.ri_ti {
    display: none;
}
.menus{
    display: block;
}
.ri {
    float: none;
    width: 100%;
}
.tree {
    font-size: 18px;
}
.sideMenu ul {
    line-height: 24px;
    font-size: 14px;
    padding: 15px 2%;
}
.t1 {
    float: left;
    width: 44%;
}
.t2,.t3{
    width: 28%
}
.xw_lf {
    display: table-cell;
    width: 150px;
    height: 100px;
}
.xw_ri h3 {
    -webkit-line-clamp: 2;
    margin-bottom: 5px;
}
.xw_ri .ms{
    display: none;
}
.case ul li {
    width: 48%;
    margin-right: 0;
}
.case ul li:nth-child(2n){
    float: right;
}
.gun_box .swiper-container.a22 {
    width: 80%;
}
.ind1{
    padding: 30px 0;
}
.ind_ti{
    font-size: 20px;
}
.ind2_lf{
    display: none;
}
.ind2_ri{
    float: none;
    width: 100%;
}
.new {
    margin-top: 20px;
}
.ind3_cp li{
    float: none;
    width: 100%;
    display: flex;
    align-items: center;
}
.ind3_cp li+li{
    margin-top: 20px;
    margin-left: 0;
}
.bc1_left{
    float: left;
    width: 20%;
    margin-right: 5%;
    margin-bottom: 0;
}
.bc1_right{
    float: right;
    width: 75%;
    text-align: left;
}
.bc1_right h3{
    font-size: 16px;
    margin-bottom: 0;
}
.ind3_cp li.zzyy{
    flex-direction:row-reverse;
}
.ind3_cp li.zzyy .bc1_left{
    margin-left: 5%;
    margin-right: 0;
}
.ind3_cp li.zzyy .bc1_right{
    text-align: right;
}

}
@media (max-width: 640px){
.a {
    height: 60px;
    line-height: 60px;
    padding-left: 6%;
}
.levell {
    line-height: 60px;
}
.levela {
    padding-left: 12%;
    font-size: 14px;
}
.menus ul li {
    line-height: 40px;
}
.nr,.nr *{
    font-size: 14px;
    line-height: 26px;
}
.ri{
    padding-bottom: 30px;
}
.tree {
    color: #ffffff;
    line-height: 50px;
}
.sideMenu h3 {
    height: 40px;
    line-height: 40px;
}
.xw_ri {
    padding-left: 3%;
}
.xw_ri h3 {
    font-size: 16px;
}
}
@media only screen and (max-width: 414px){
.header {
    height: 60px;
}
.header_fixd {
    height: 60px;
}
.logo{
    width: 40%;
}
.menu {
    width: 8%;
}
.nav {
    top: 60px;
}
.nav-left {
    top:60px;
}
.a {
    font-size: 16px;
    height: 50px;
    line-height: 50px;
    padding-left: 5%;
}
.levela {
    padding-left: 9%;
}
.levell {
    line-height: 50px;
}
.onli>a {
    background-size: 12px auto;
}
.banner .swiper-container-horizontal>.swiper-pagination-bullets{
    bottom: 5px;
}
.banner .swiper-pagination-bullet {
    width: 30px;
    height: 4px;
}
.footer_text {
    font-size: 14px;
    line-height: 24px;
}
.nav {
    overflow: scroll;
    overflow-x: hidden;
}
.cop h1 {
    font-size: 14px;
    line-height: 24px;
}
.tree {
    font-size: 16px;
}
.link p{
    font-size: 14px;
}
.xw_lf {
    width: 120px;
    height: 80px;
}
.show_ti h3 {
    font-size: 16px;
}
.show_ti {
    padding-bottom: 5px;
}
.menus ul.cp li{
    font-size: 14px;
}
.gun_box .swiper-button-next,.gun_box .swiper-button-prev{
    width: 25px;
    height: 50px;
}
.a3 p{
    font-size: 14px;
}
.bc1_right p {
    line-height: 20px;
}
}
@media only screen and (max-width: 375px){
}
@media only screen and (max-width: 325px){
.levela {
    font-size: 12px;
}
.footer2 img {
    width: 100px;
}
.xw_ri h3 {
    font-size: 14px;
}
}