.banner_tongjiang{
	    position: absolute;
	    width: 100%;
	    top: 28%;
	    left: 0;
}
.banner_tongjiang h1{
	text-align: center;
	color: #BB9667;
	font-size: 32px;
}
@media screen and (max-width:768px) {
	.banner_tongjiang h1{

		font-size:18px;
	}
}