.index_bg{
	width: 100%;
	height: auto;
}
.mod_img{
	display: block;
	margin: auto;
}
.footer{
	width: 100%;
	height: 60px;
	background: #333;
	display: flex;
	align-items: center;
	justify-content: center;
	color: #fff;
	margin-top: 60px;
}
.footer a {
  text-align: center;
	color: #fff;
	line-height: 100px;
}