.top_banner{
		/*background: url("../images/top_banner.jpg") no-repeat top center;
		max-width:1920px;
		height:375px;*/
		position: relative;
	}
	.lindex{
		width:50px;
		left:50%;
		margin-left:-500px ;
		position: absolute;
	}
	.lindex a{
		padding: 5px 10px;
		color: #4e57a4;
		font-size: 14px;
		border-radius: 10px;
		border: 1px solid #4e57a4;
		margin-top: 10px;
		display: inline-block;
	}
	.screen_m{
		display: none;
	}
	.screen_big{
		display: block;
	}
	@media (max-width: 1000px){
		.lindex{
			left: 0;
			margin-left: 16px;
		}
	}
	@media (max-width: 767px){
		.screen_m{
			display: block;
		}
		.screen_big{
			display: none;
		}
	}