* {margin:0;padding:0;}
body {
    font-family: Microsoft YaHei;
    font-size: 16px;
    min-width: 1220px;
    overflow-x: auto;
}
a,a:hover {text-decoration:none;}
/*container 样式代码*/
.container {
	width:1200px;
	margin:0 auto;
}
/* .container-fluid {
	height:775px;
	background-color: #040f22;
} */
.banner img{width:100%;}
/*nav 样式代码*/
.nav {
	padding-left:200px;height:340px;
	box-sizing:border-box;
	overflow:hidden;
	position:absolute;
}

.nav ul {
	list-style-type:none;height:90px;
	margin-left:30px;
}
.nav ul li{
	float:left;height: inherit;
	margin-right:50px;
	font-size:20px;
	box-sizing: border-box;
}
.nav ul li:nth-of-type(3) {
	font-size:22px;
	line-height:25px;
}
.nav ul li a{	
	padding-top:48px;
	box-sizing: border-box;
	display:block;
	color:white;
	width:100%;height:inherit;
}

.navItemActive {
	border-bottom:solid 2px white;
}
/*subNav  样式代码*/
.subNav {
	display:none;
	position:absolute;
	width:133px;height:250px;
	background-color: rgba(255,255,255,0.5);	
	top:90px;
	left:294px;
}
.subNav a {
	display:block;
	line-height:35px;
	position: relative;
	color:white;
	font-size:12px;
	padding-left:16px;
	box-sizing: border-box;
}
.subNav>a .sub-line {
	width:100px;height:1px;
	background-color: white;
	position:absolute;
	left:0;right:0;
	margin:0 auto;
	z-index:500000;
}
.subNav a:hover {
	color:#01cced;
}
.nav-back  {
	background-image: url(../images/pr-nav-back.png);
	background-size: 100% 100%;
	position:relative;
}
.aboutus {
	width:350px;height:220px;
	position:absolute;
	top:0;right:0;
	bottom:0;left:0;
	margin:auto;
	text-align:center;
	font-size:36px;
}
.aboutus p:nth-of-type(1) {
	font-weight:bold;
	color:white;
} 
.aboutus p:nth-of-type(2) {
	color:#cac9cc;
} 
.select {
	width:45px;height:70px;
	border:solid 1px white;
	border-radius:50px;
	cursor:pointer;
	margin:35px auto;
}
.select span {
	display:block;
	width:0;
    height:0;
    border-width:9px 9px 0;
    border-style:solid;
    border-color:white transparent transparent;/*灰 透明 透明 */
    margin:30px auto;
    position:relative;
}

.case-back {
	background-size:100% 100%;
}


/*list-case-wraper  样式代码*/
.list-case-wraper {
	height:auto;
	overflow:hidden;
	margin-top:115px;
}
.list-case-wraper .list-case-item {
	width:375px;height:275px;
	border:solid 1px #d9d9d9;
	border-radius:8px;
	overflow:hidden;
	text-align:center;
	font-size: 17px;
	color:#dcdcdc;
	float:left;
	margin-right:34px;
	margin-bottom: 85px;
	cursor:pointer;
}
.list-case-wraper .list-case-item:nth-child(3n) {
	margin-right:0;
}
.list-case-wraper .list-case-item .img-wraper {
	width:100%;height:185px;
	border-radius:8px;
	overflow: hidden;
}
.list-case-wraper .list-case-item img {
	width:100%;
	border-radius:8px;
	transition: 0.5s;
}
.list-case-wraper .list-case-item:hover .img-wraper img {
	transform: scale(1.2);
	transition:0.5s;
}

.list-case-wraper .list-case-item p {
	margin-top:28px;
	font-size:25px;
	color:#333;
}

/*copyright  样式代码*/
.copyright {
	height:150px;
	background-color: #040f22;
	padding-top:85px;
	box-sizing: border-box;
	text-align:center;
	font-size:14px;
	color:#999999;
}