.hidden{display:none !important}

@media screen and (max-width: 1100px){
		.logo a img{
		width: 50px !important；
	}	
}
@media screen and (min-width:1101px){
		.logo a img{
		width: 70px !important；
	}	
}

.three-com-img img{
	width: 512px;
	height: 290px;
	overflow: hidden;
}
.img-big .index-p-list img{margin-left:25px}