.youshi {
    width: 1200px;
    margin: 0 auto;
	}
/*企业优势*/
.youshi .power {
}
.youshi .power ul {
}
.youshi .power ul li {
	float: left;
	width: 300px;
	height: 450px;
	position: relative;
	background: #f2f2f2;
}
.youshi .power ul li .img {
	width: 100%;
	padding-top: 75%;
	position: relative;
	overflow: hidden;
}
.youshi .power ul li .img img {
	width: 100%;
	height: 100%;
	position: absolute;
	left: 0;
	top: 0;
	min-height: 100%;
	display: block;
	transition: all .5s;
}
.youshi .power ul li .img i {
	position: absolute;
	top: 318px;
	left: 50%;
	margin-left: -16px;
	width: 0;
	height: 0;
	border: 16px solid transparent;
	border-top: 0;
	border-bottom-color: #f2f2f2;
}
.youshi .power ul li .txt {
	padding: 0 20px;
	padding-top: 20px;
}
.youshi .power ul li .txt p {
	color: #1abc9e;
	font-size: 20px;
	line-height: 34px;
	transition: all .5s;
}
.youshi .power ul li .txt span {
	font-size: 15px;
	font-family: STXihei;
	line-height: 25px;
	display: block;
	margin-top: 10px;
	text-align: justify;
	transition: all .5s;
}
.youshi .power ul li:nth-child(2n) .img {
	position: absolute;
	bottom: 0;
}
.youshi .power ul li:nth-child(2n) .img i {
	top: 0;
	border-top: 16px solid #f2f2f2;
	border-bottom: 0;
}
.youshi .power ul li:hover .img img {
	transform: scale(1.1);
}
@media (max-width: 1200px) {
.youshi .power ul li {
	width: 300px;
	height: 449px;
}
.youshi .power ul li .txt {
	padding: 0 40px;
	padding-top: 40px;
}
.youshi .power ul li .txt p {
	font-size: 20px;
	line-height: 30px;
}
.youshi .power ul li .txt span {
	font-size: 14px;
	line-height: 24px;
	margin-top: 20px;
}
}