@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: 1400px){
/* 宽度小于1400 */
	.w14{
		width: 100%;
	}
	.index_case_list .swiper-button-prev,
	.index_case_list .swiper-button-next{
		display: none;
	}
}
@media only screen and (max-width: 1200px){
/* 宽度小于1200 */
	#header{
		width: 100%;
		position: relative;
		top: 0;
		left: 0;
		margin-left: 0;
		z-index: unset;
	}
	.w{
		width:92%;
	}
	#about{
		min-height: 500px;
	}
	.about_bg{
		background-color: #fff;
	}
	.about_list{
		width:100%;
		left: 0;
		margin-left: 0;
	}
	.about_list_l{
		padding: 50px;
		min-height: auto;
	}
	.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: 100px;
		box-sizing: border-box;
	}
	#kefu_wrap{
		display: none;/* QQ不显示 */
	}
	.logo,#main_left{
		display: none;
	}
	#logo{
		flex: 1;
	}
	#header1,#index_nav{
		display: block;
	}
	.nav_map{
		display: block;
	}
	#about{
		min-height: 400px;
	}
	.case_title a{
		position: relative;
		top: -20px;
		left: 0;
		margin-left: 0;
	}
	.case_title span{
		padding-bottom: 20px;
	}
	#news_list li:hover .pic{
		display: none;
	}
	#news_list li .description{
		height: 50px;
		line-height: 20px;
		overflow: hidden;
	}
	#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;
		}
}
@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 {
		min-height: 350px;
	}
	#index_product{
		padding-top: 60px;
	}
	.index_product_list ul li .title{
		line-height: 60px;
		background-color: #c08860;
		color: #fff;
	}
	.about_list_l {
		padding: 40px;
	}
	.picScroll .title{
		padding-top: 10px;
		padding-left: 10px;
		padding-bottom: 10px;
	}
	.picScroll .title span{
		height: 40px;
		line-height: 40px;
	}
	.picScroll .description{
		display: block;
	}
	#bottom{
		padding-top: 40px;
		padding-bottom: 30px;
	}
	#bottom .copyright .qrcode{
		display: none;
	}
}
@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_list .swiper-button-prev,
	.index_product_list .swiper-button-next{
		display: none;
	}
	.index_case_list li{
		width: 50%;
		margin-right: 0;
	}
	#content_lm{
		line-height: 2rem;
    	height: 2rem;
	}
	#content_lm span{
		width: 100%;
		height: 2.1rem;
		display: block;
		float: none;
	}
	#footer{
		margin-bottom: 68px;
	}
	#index_product {
		padding-top: 50px;
	}
	.index_product_list ul li .title {
		line-height: 50px;
	}
	#about {
		padding-top: 30px;
		min-height: 300px;
	}
	.about_list{
		top: 100px;
	}
	.about_list_l {
		padding: 10px;
	}
	.case_title span{
		width: 100%;
	}
}
@media only screen and (max-width: 375px){
	/* 宽度小于375*/
	#footer{
		margin-bottom: 58px;
	}
	#index_product {
		padding-top: 30px;
	}
	.pronav{
		padding-bottom: 20px;
	}
	.pronav ul{
		letter-spacing: -4px;/*根据不同字体字号或许需要做一定的调整*/
		word-spacing: -4px;
		font-size: 0;
	}
	.pronav li{
		min-width: 23%;
		margin-right: 4px;
		letter-spacing: 0;
		word-spacing: 0;
		border: 1px solid #c08860;
		overflow: hidden;
		display: block;
		float: left;
	}
	.index_product_list ul li .title{
		line-height: 40px;
	}
	.pronav li:first-child a{
		color: #000;
		background-color: #fff;
	}
	#about {
		min-height: 200px;
	}
	.about_bg{
		height: auto;
	}
	.about_list{
		top: 80px;
	}
	#news {
		padding-top: 45px;
	}
	#news_list{
		padding-top: 0;
		padding-bottom: 20px;
	}
	#news_list li {
		width: 100%;
		margin-right: 0;
	}
	#news_list li .title a{
		font-size: 18px;
		font-size: 1.8rem;
	}
	.news_date,
	.news_more{
		display: none;
	}
	#news_list li .description {
		height: auto;
		line-height: 20px;
	}
}
@media only screen and (max-width: 320px){
	.pronav li{
		margin-right: 1px;
	}
}