@media screen and (max-width: 1559px)
{
	.article-index_item{
		width: 20%;
	}
	.first-article-index_item{
		width: 40%;
	}
	#article-index .first-i-a-i .img-i-a-i{
	    height: 448px;
	}
	#article-index .info-i-a-i{
    	padding: 20px 12px 24px;
	}
	#article-index .img-i-a-i{
		height: 203px;
	}
}
@media screen and (max-width: 1229px)
{
	.article-index_item{
		width: 25%;
	}
	.first-article-index_item {
	    width: 50%;
	}
	#article-index .first-i-a-i .img-i-a-i {
	    height: 480px;
	}
	#article-index .info-i-a-i {
	    padding: 26px 12px 32px;
	}
	#article-index .img-i-a-i {
	    height: 221px;
	}
}
@media screen and (max-width: 1023px)
{
	.article-index_item{
		width: 33.333333%;
	}
	.first-article-index_item {
	    width: 66.666666%;
	}
	#article-index .first-i-a-i .img-i-a-i{
		height: 501.99px;
	}
	#article-index .img-i-a-i {
	    height: 243px;
	}
}
@media screen and (max-width: 799px)
{
	#article-index .first-i-a-i .img-i-a-i{
		height: 482px;
	}
	#article-index .info-i-a-i {
	    padding: 20px 12px 24px;
	}
	#article-index .img-i-a-i {
	    height: 237px;
	}
}
@media screen and (max-width: 767px)
{
	.article-index_item:nth-child(n+3){
		display: none;
	}
	.first-article-index_item,
	.article-index_item{
		width: 50%;
	}
}
@media screen and (max-width: 599px)
{
	.article-index_item:nth-child(n+2){
		display: none;
	}
	.first-article-index_item{
		width: 100%;
	}
	#article-index .first-i-a-i .img-i-a-i {
    	height: 448px;
	}
}
@media screen and (max-width: 479px)
{
	#article-index .first-i-a-i .img-i-a-i {
    	height: 288px;
	}	
}