@media only screen and (min-width:1025px)
	and (max-width:1920px){
		#pc-nav,#pc-content,#pc-footer{
			display: block;
		}
		#mobile-nav,#mobile-content,#mobile-footer{
			display: none;
		}
		.about-content{
			width:1100px;
			margin: 0 auto;
		}
	}
	@media only screen and (min-width:268px)
	and (max-width:1024px){
		#pc-nav,#pc-content,#pc-footer{
			display: none;
		}
		.productBg{
		
			margin-top: 60px;
			
		}
		#mobile-nav,#mobile-content,#mobile-footer{
			display: block;
			padding: 1rem;
		}
		.about-content{
			width: 100%;
			overflow: hidden;
			clear: both
		}
		.mobile-about-content .about-content ul li {
		    height: 50px;
		    float: left;
		    margin-left: 10px; 
		    text-align: center;
		    font-size: 18px;
		    line-height: 50px;
		    cursor: pointer;
			width: 47%;
		}
		.mobile-about-content .about-content ul{
			margin-top: 0;
		}
		.about-content-ul ul{
			height: 120px;	
		}
		.connect-left-mobile{
			float: left;
			width: 48%;
			margin-top: 29px;
			text-align: center;
			border-right: 1px dashed #ddd;
			margin-top: 50px;
		}
		.connect-right-mobile{
			float: right;
			width: 48%;
			text-align: center;
			margin-top: 20px;
		}
	
	}