.about{
	width: 100%;
	height: auto;
	overflow: hidden;
	background: #e9e9e9;

}
.about .about_z{
	width: 25%;
	height:auto;	
	float: left;
	background: #e9e9e9;
	overflow: hidden;
	padding: 3em 0;
}
.about .about_z ul{
	width: 140px;
	height: auto;
	float: right;
	padding-right: 1em;
}
.about .about_z ul li{
	line-height: 46px;
	padding: 0 1em;
	font-size: 16px;
}
.about .about_z ul li:active{
	background: #fff;
}
.about .about_z ul .l1{
	border-bottom: 1px solid #000;
}
.about .about_z ul .l2{
	border-bottom: 1px solid #999;
}
.about .about_z ul .l3{
	background: #fff;
	color: #f90;
}
.about .about_y{
	width: 75%;
	float: left;
	height: auto;
	background: #fff;
	padding-bottom: 300px;
}
.about .about_y .about_xq{
	width: 80%;
	height: auto;
	float: left;
	overflow: hidden;
}

.full-length{width: 100%; float: left; padding-bottom: 80px;}
.container ul{margin: 0 -1.5%;}
.container ul li{float: left; width: 21%; margin: 10px 0px 10px 30px; list-style: none;display: block;overflow: hidden;height: 260px;}
.p4{font-weight: 300; font-size: 12px;}
.btn{display: inline-block; padding: 5px 10px; font-size: 14px; color: #fff; border: 2px solid #4d92d9; background-color: #4d92d9; text-decoration: none; transition: 0.4s;}
.btn:hover{background-color: transparent; color: #4d92d9; transition: 0.4s;}
.text-desc{position: absolute; left: 0; top: 0; background-color: #fff; height: 140px; opacity: 0; padding: 20px;}
/*= Reset CSS End
================= *

/* effect-1 css */
.port-1{float: left; width: 100%; position: relative; overflow: hidden; text-align: center; border: 4px solid rgba(255, 255, 255, 0.9);}
.port-1 .text-desc{opacity: 0.9; top: -100%; transition: 0.5s; color: #000; padding: 45px 20px 20px;overflow: hidden;}
.port-1 img{transition: 0.5s; height: 200px; width: 100%}

.port-1.effect-1:hover .text-desc{top: 0;}

.port-1.effect-2 .text-desc{top: auto; bottom: -100%;}
.port-1.effect-2:hover .text-desc{bottom: 0;}

.port-1.effect-3 .text-desc{top: 50%; left: 50%; width: 0; height: 0; overflow: hidden; padding: 0;}
.port-1.effect-3:hover .text-desc{width: 100%; top: 0; left: 0; height: 100%; padding: 45px 20px 20px;}
/* effect-1 css end */