@media only screen and (min-width: 1441px){
/* 宽度大于1440*/
	html{
		font-size:75%;/* 12px */
	}
	#nav li{
		-webkit-flex-basis: 130px;
		flex-basis: 130px;/* 设置宽度 */
	}
}
@media only screen and (max-width: 1200px){
/* 宽度小于1200 */
	.w{
		width:92%;
		}
	.logo_main{
		width: 100%;/* logo不缩小 */
	}
}
@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 */
	}
	#header,.logo,#main_left{
		display: none;
	}
	#header1,#index_nav{
		display: block;
	}
	#logo{
		position: relative;
		background: rgba(57,114,183,1);
		z-index: 1;
	}
	#hotline{
		display: none;
	}
	.nav_map{
		display: block;
	}
	#about{
		margin-top: 30px;
		margin-bottom: 30px;
	}
	.about_l .l .title{
		background-position: center 10px;
	}
	.about_l .l .title::after{
		border: 15px solid transparent;
		border-left-color: #3972b7;
		top: 50%;
		margin-top: -15px;
		right: -30px;
	}
	.about_l .l .title a{
		bottom: 0
	}
	#index_product{
		padding-top: 30px;
		padding-bottom: 50px;
	}
	.picScroll li a{
		border: 1px solid transparent;
	}
	.picScroll .title{
		position: relative;
		bottom: 0;
		background-color: #3972b7;
		color: #FFF;
	}
	#index_case{
		padding-top: 30px;
		padding-bottom: 30px;
	}
	#index_lx{
		padding-top: 30px;
		padding-bottom: 30px;
	}
	#news{
		padding-top: 30px;
		padding-bottom: 0;
	}
	#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;
	}
	.nav_b ul{
		width: 100%;
	}
	.nav_b li{
		-ms-flex-preferred-size: 25%;
	    flex-basis: 25%;/* 设置宽度 */
	}
}
@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*/
	}
	.about_l{
		padding-top: 5%;
	}
	#news_r li .description{
		overflow: hidden;
	}
}
@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;
	}
	.about_l,.about_r{
		width: 100%;
	}
	.about_r{
		height: auto;
	}
	.about_l .l .title {
		background-position: center 20px;
	}
	.about_l .l .title a{
		bottom: 10px;
		font-size: 20px;
	}
	.index_product_list .swiper-button-prev,
	.index_product_list .swiper-button-next{
		display: none;
	}
	#index_case{
		overflow: hidden;
	}
	.index_case_list li{
		width: 50%;
		margin-right: 0;
	}
	.index_lx_l{
		width: 100%;
	}
	.index_lx_r{
		display: none;
	}
	#news{
		padding-bottom: 10px;
	}
	.news_title span{
		padding-left: 0;
	}
	#news_r li .description{
		display: none;
	}
	#news_r li a{
		text-indent: 0;
		line-height: 20px;
	}
	#content_lm{
		line-height: 2rem;
    	height: 2rem;
	}
	#content_lm span{
		width: 100%;
		height: 2.1rem;
		display: block;
		float: none;
	}
	#footer{
		margin-bottom: 58px;
	}
}