@media only screen and (min-width: 1441px){
/* 宽度大于1440*/
	html{
		font-size:75%;/* 12px */
	}
}
@media only screen and (max-width: 1440px){
	/* 宽度小于1440 */
	.w{
		width:92%;
	}
	#index_product .w{
		width: 100%;
	}
	.index_product_nav ul{
		padding-right: 10px;
	}
	#logo {
        flex: 1;
    }
	.header_menu #hotline{
		top: 50px;
		right: -4%;
	}
	.picScroll .title span{
		height: 50px;
		line-height: 50px;
	}
	#service li .k {
		top: 20px;
	}
	.picScroll2{
		width: 100%;
	}
	.index_case_list .swiper-button-prev{
		left: -40px;
	}
	.index_case_list .swiper-button-next{
		right:-40px;
	}
	.picScroll li a .more{
		display: none;
	}
	.picScroll2{
		width: 100%;
	}
}
@media only screen and (max-width: 1200px){
/* 宽度小于1200 */
	.logo_main{
		width: 100%;/* logo不缩小 */
	}
	.index_product_nav li{
		margin-right: 0;

	}
	.index_product_nav li a {
		padding-left: 0;
		padding-right: 0;
	}
	.index_product_nav ul{
		padding-top: 25px;
	}
	.picScroll .title span {
        height: 30px;
        line-height: 30px;
    }
	#about .w{
		overflow: hidden;
	}
	.about_r{
		width: 50%;
		top: 0;
		height: 100%;
		box-shadow:none;
		padding: 15px 25px;
	}
	.case_title_r .show{
		width: 70%;
		top: -60px;
	}
	.news_title a {
		margin-top: 55px;
	}
@media only screen and (max-width: 992px){
/* 宽度小于992 */
	html{
		font-size:59.375%;/* 9.5px */
		}
	.pc,.wap{
		padding-right: 80px;
		box-sizing: border-box;
	}
	#kefu_wrap{
		display: none;/* QQ不显示 */
	}
	.logo,#main_left{
		display: none;
	}
	#header1,#index_nav{
		display: block;
	}
	.nav_map{
		display: block;
	}
	#footer{
		margin-bottom: 87px;
	}
	#main{
		margin-top: 10px;
	}
	#main_right{
		margin-left: 0;
	}
	.tbox{
		right: -50px;/* top图标 */
	}
	.swiper-button-prev{
		left: -50px;/* banner箭头图标 */
	}
	.swiper-button-next{
		right: -50px;
	}
	.logo_x{
		display: block;
	}
	.index_product_nav ul {
        padding-top: 20px;
    }
	#service {
		padding-bottom: 105px;
	}
	#service li .k{
		padding-top: 15px;
		padding-left: 10px;
		padding-right: 15px;
		height: 153px;
	}
	#service li:nth-child(2n) .k{
		padding-left: 15px;
		padding-right: 10px;
	}
	#service li .k .des{
		font-size: 14px;
	}
	.case_title_r .show{
		width: 80%;
		top:-40px;
	}
	.case_title_r .show .k{
		padding: 10px;
		padding-bottom: 66.63%;
	}
	.case_title_des {
		padding-bottom: 50px;
	}
	.index_case_list .swiper-button-prev{
		left: -30px;
	}
	.index_case_list .swiper-button-next{
		right:-30px;
	}
	.picScroll3 {
		padding-top: 50px;
	}
	.news_list li .k {
		padding: 20px;
	}
	.news_list li .k .des {
		padding-top: 20px;
		font-size: 14px;
		height: 60px;
		line-height: 20px;
	}
	.footer_nav_r .qrcode li{
		padding-right: 10px;
	}
}
@media only screen and (max-width: 768px){
/* 宽度小于768 */
	html{
		font-size:56.25%;/* 9px */
		}
	.news-thumb,.news-time{
		display: none;
	}
	.news-title{
		width: 100%;
		white-space: nowrap;/*设置不折行*/
		overflow: hidden;/*超出部分自动隐藏*/
		text-overflow: ellipsis;/*省略号*/
	}
	.header_menu #hotline{
		display: none;
	}
	.index_product_title{
		width: 23%;
	}
	.index_product_nav {
		width: 77%;
	}
	.index_product_title a {
		position: relative;
		margin-top: 50px;
		margin-left: 20px;
		font-size: 22px;
	}
	.index_product_list {
		padding-top: 40px;
	}
	.index_product_nav ul {
        padding-top: 10px;
    }
	.picScroll li a{
		padding-bottom:92%;
	}
	.pic_nav {
		width: 280px;
		margin: 20px auto;
	}
	.about_t {
		width: 60%;
		margin-right: 40%;
	}
	.about_t span{
		display: inline;
	}
	#service {
		padding-top: 30px;
		padding-bottom: 85px;
	}
	.service_title {
		padding-bottom: 30px;
	}
	#service li .pic{
		display: none;
	}
	#service li .k {
		width: 100%;
        top: 0;
		position: relative;
    }
	#service li .pic .bg{
		background-image: none !important;
	}
	#service li .k{
		right: 5px;
	}
	#service li:nth-child(2n) .k{
		left: 5px;
		right: auto;
	}
	#index_case .w {
		margin-bottom: 40px;
	}
	.case_title {
		width: 40%;
		height: 120px;
	}
	.case_title a {
		margin-top: 40px;
		margin-left: 40px;
		font-size: 18px;
	}
	.case_title a span {
		font-size: 20px;
		font-size: 2rem;
		line-height: 20px;
	}
	.case_title a::before {
		height: 45px;
	}
	.case_title_des .des {
		padding-left: 30px;
	}
	.case_title_r {
		width: 60%;
		height: 120px;
	}
	.case_title_r .show {
		width: 70%;
        top: -55px;
    }
	.index_case_list .swiper-button-prev{
		display: none;
	}
	.index_case_list .swiper-button-next{
		display: none;
	}
	.news_title{
		width: 100%;
		height: 100px;
	}
	.news_title a {
        margin-top: 25px;
		font-size: 18px;
    }
	.news_title a span{
		display: inline;
		padding-right: 10px;
		font-size: 14px;
	}
	.news_title a::before{
		width: 5px;
		height: 20px;
		right: -10px;
	}
	.news_list .news_nav{
		width: 200px;
	}
	.news_list .news_nav .swiper-button-prev,
	.news_list .news_nav .swiper-button-next{
		width: 100px;
		height: 19px;
		top: -20px;
	}
	.news_date{
		width: 40px;
		height: 80px;
		top: -65px;
	}
	.news_date span {
		font-size: 30px;
	}
	.news_list li .k .title{
		padding-left: 65px;
	}
}
@media only screen and (max-width: 576px){
/* 宽度小于576*/	
	html{
		font-size:53.125%;/* 8.5px */
		}
	#main{
		margin-top: 0;
	}
	#content_lm{
		margin-top: 10px;
		margin-bottom: 10px;
	}
	.pc{
		display: none;
	}
	.wap{
		display: block;
	}
	.pronav li a{
		padding: 3px;
	}
	#index_product,
	.index_product_title,
	.index_product_nav {
		height: 120px;
	}
	.index_product_title a {
        font-size: 18px;
		margin-top: 30px;
    }
	.index_product_title a span {
		font-size: 20px;
		font-size: 2rem;
		line-height: 20px;
	}
	.index_product_title a::before {
		height: 45px;
		top: 0px;
	}
	.index_product_nav ul {
        margin-top: 10px;
    }
	.index_product_list {
        padding-top: 30px;
    }
	.about_pic {
		width: 50%;
		padding-bottom: 20px;
	}
	.about_r {
        width: 70%;
        padding: 5px 5px;
		top:20px;
    }
	#service li {
		padding-bottom: 10px;
	}
	#index_gw {
		padding-top: 45px;
		padding-bottom: 45px;
	}
	#content_lm{
		line-height: 2rem;
    	height: 2rem;
	}
	#content_lm span{
		width: 100%;
		height: 2.1rem;
		display: block;
		float: none;
	}
	#content{
		min-height: 250px;
	}
	#footer{
		margin-bottom: 78px;
	}
	.preNext .actBox{
		display: none;
	}
	.case_title_r .show {
		width: 90%;
		top:-40px;
    }
	.case_title_r .more a{
		display: none;
	}
	.footer_nav_l,
	.footer_nav_r{
		width: 100%;
	}
	#footer_nav {
		padding-bottom: 20px;
	}
	.news_title a::before {
		top: 5px;
	}
	.picScroll3 {
		padding-top: 20px;
	}
	.news_date{
		font-size: 12px;
		width: 40px;
		height: 55px;
		top: -35px;
		padding-top: 10px;
	}
	.news_date span {
		font-size: 20px;
	}
	.news_list li .k .title{
		padding-left: 65px;
	}
}
@media only screen and (max-width: 430px){
/* 宽度小于430*/
	#index_product{
		height: auto;
	}
	.index_product_title{
		height: 60px;
		width: 40%;
	}
	.index_product_title a {
        font-size: 18px;
        margin-top: 10px;
		margin-left: 40px;
    }
	.index_product_title a span {
        font-size: 12px;
        line-height: 20px;
    }
	.index_product_nav {
		width: 100%;
		padding-right: 0;
		text-align: center;
	}
	.index_product_nav ul {
        padding-right: 0;
    }
	.index_product_nav{
		height: auto;
	}
	.about_pic {
        padding-bottom: 50px;
    }
	.about_r {
        width: 80%;
    }
	.case_title a span {
        font-size: 12px;
    }
	.news_list li{
		width: 100%;
		margin-right: 0;
		margin-bottom: 10px;
	}
	.news_list li .k .title {
        padding-left: 45px;
    }
	.footer_nav_r{
		display: none;
	}
	.footer_nav_l .fast,
	.footer_nav_l .contact{
		width: 100%;
	}
	.footer_nav_l .fast .fast_nav li {
		width: 25%;
	}
	#footer {
        margin-bottom: 68px;
    }
	#footer_nav{
		padding-top: 30px;
	}
	.news_title a {
		margin-top: 5px;
		font-size: 18px;
	}
	.news_list .news_nav .swiper-button-prev,
	 .news_list .news_nav .swiper-button-next {
		top: -18px;
	}
	.news_list{
		width: 100% !important;
		padding-bottom: 20px;
	}
	.news_list li .k .title a{
		font-size: 16px;
	}
	.news_list li .k .des{
		font-size: 12px;
	}
}
@media only screen and (max-width: 375px){
/* 宽度小于375*/
	#header{
		height: 110px;
	}
	.index_product_title a {
		font-size: 14px;
	}
	.index_product_title a::before {
        height: 35px;
        left: -15px;
        top: 5px;
    }
	.index_product_list {
        padding-top: 10px;
    }
	.picScroll .title span {
        height: 25px;
        line-height: 25px;
    }
	.swiper-button-prev {
        left: -10px;
    }
	.swiper-button-next {
        right: -10px;
    }
	#about {
		margin-top: 20px;
	}
	.about_pic {
        padding-bottom: 120px;
    }
	#service li .k .title {
		font-size: 16px;
		font-size: 1.6rem;
		padding-bottom: 5px;
	}
	#service li .k .des {
        font-size: 12px;
    }
	#service {
        padding-top: 20px;
		padding-bottom: 55px;
    }
	.service_title {
        padding-bottom: 20px;
    }
	#index_case .w {
        margin-bottom: 20px;
    }
	.case_title {
        width: 50%;
		height: 100px;
    }
	.case_title a {
        margin-top: 30px;
    }
	.case_title_r {
        width: 50%;
		height: 100px;
    }
	.case_title_r .show {
        width: 100%;
        top: -40px;
    }
	.case_title_des {
        padding-bottom: 20px;
    }
	.case_title_des .des {
        padding-left: 10px;
		font-size: 14px;
    }
	#index_gw {
		padding-top: 25px;
		padding-bottom: 25px;
	}
	#news {
		padding-top: 20px;
        margin-bottom: 20px;
    }
	.news_list li {
        margin-bottom: 20px;
    }
	.news_list li .k {
        padding: 10px;
    }
	.news_list li .k .des {
        padding-top: 10px;
    }
	.news_list li .k .title a {
        font-size: 16px;
    }
	#footer_nav {
		padding-top: 20px;
    }
	#footer_nav .title {
		padding-bottom: 30px;
	}
	#footer_nav .title::before{
		bottom: 15px;
	}
	.footer_nav_l .fast .fast_nav li {
		padding-bottom: 10px;
	}
	.footer_nav_l .fast .fast_nav li a {
		font-size: 14px;
	}
	.footer_nav_l .contact .lx{
		font-size: 14px;
	}
	.footer_nav_l .fast .fast_nav li {
		width: 33.33%;
	}
	#footer {
        margin-bottom: 58px;
    }
	.news_title a {
		margin-top: 15px;
	}
	.news_list .news_nav{
		height: 29px;
	}
	.news_date {
		width: 35px;
		padding-right: 5px;
	}
}
@media only screen and (max-width: 320px){
	/* 宽度小于320*/
	#header{
		height: 100px;
	}
	#about {
		margin-top: 10px;
	}
	#service li .k {
        height: 130px;
    }
	.case_title {
        height: 80px;
    }
	.case_title_r {
        height: 80px;
    }
	.case_title a {
        margin-top: 20px;
    }
	.case_title_r .show {
        top: -10px;
    }
	.case_title_r .show .k {
        padding: 5px;
        padding-bottom: 66.63%;
    }
	.case_title_des .des {
        font-size: 12px;
    }
	#news {
        margin-bottom: 20px;
    }
	.news_list li .k .des {
        font-size: 12px;
    }
	.news_list li .k .title a {
        font-size: 15px;
    }
	#footer {
        margin-bottom: 48px;
    }
}