@media only screen and (min-width: 750px) {
	#pca{
		display: block;
	}
	#phonea{
		display: none;
	}

			*{
				margin: 0px;
				padding:0px;
			}
			.topbar{
				width: 1200px;
				margin:0 auto;
	    		height: 102px;
	    		line-height: 102px;
			}
			.topbar img{
				vertical-align: middle;
			}
			
			h2{
				padding: 0 20%;				
			    font-size: 30px;
			    font-family: "黑体";
			    line-height: 80px;
			    text-align: center;
			}
			.contentbox{
				background-color: #fff;
			}
			.contentbox h4{
				padding:0 20%;				
				font-size: 18px;
			    line-height: 40px;
			    color: rgb(51, 51, 51);
    			font-family: "微软雅黑";
			    font-weight: 500;
			    color: inherit;
			     display: block;
			    -webkit-margin-before: 1.33em;
			    -webkit-margin-after: 1em;
			    -webkit-margin-start: 0px;
			    -webkit-margin-end: 0px;
			}
			.contentbox p{
				padding:0 20%;
				color: rgb(51, 51, 51);
    			font-family: "微软雅黑";
    			font-size:14px; 
    			font-weight: 500;
    			line-height: 24px;
    			margin: 0 0;
    			margin-bottom: 22px;
			}
			.bottombar{
				padding:15px 0;
				background-color: #3C3C3C;
			}
			.bottombarInner{
				width:1200px;
				margin:0 auto;
				color: #fff;
			}
			.bottombarInner a{
				color: #fff;
				text-decoration: none;
			}
			.banquan{
				margin-bottom:10px;
			}
}

@media only screen and (max-width: 750px) {
	#phonea{
		display: block;
	}
	#pca{
		display: none;
	}

	.upbar{
		position:absolute;
		width:100%;
		height:44px;
		background-color:#41adff;
	}
	.liaoimg{
		position: absolute;
		left:30px;
		top:5px;
		
	}
	img{
		width:50%;
		height: 50%;
	}
	.select{
		position: absolute;
		right:30px;
		top:15px;
	}

	*{
	margin: 0px;
	padding:0px;
	}
	.topbar{
		width: 100%;
		height: 50px;
		line-height: 100px;
		padding-left: 5%;
	}
	.topbar img{
		position: relative;
		top:-20px;
		width:25%;
	}
	::-webkit-scrollbar{
		width:0px;
		display: none;
	}
	
	h2{
		padding: 0 20%;				
	    font-size: 30px;
	    font-family: "黑体";
	    line-height: 80px;
	    text-align: center;
	}
	.contentbox{
		background-color: #fff;
	}
	.contentbox h4{
		padding:0 5%;				
		font-size: 18px;
	    line-height: 20px;
	    color: rgb(51, 51, 51);
		font-family: "微软雅黑";
	    font-weight: 500;
	    color: inherit;
	     display: block;
	    -webkit-margin-before: 1.33em;
	    -webkit-margin-after: 1em;
	    -webkit-margin-start: 0px;
	    -webkit-margin-end: 0px;
	}
	.contentbox p{
		padding:0 5%;
		color: rgb(51, 51, 51);
		font-family: "微软雅黑";
		font-size:14px; 
		font-weight: 500;
		line-height: 24px;
		margin: 0 0;
		margin-bottom: 11px;
	}
	.bottombar{
		text-align: center;
		padding:15px 0;
		background-color: #3C3C3C;
		color: #fff;
		font-size:14px;
	}
}