header{
	position: fixed;
	left:0;
	right:0;
	top:0;
	margin:auto;
	height: 80px;
	background-color: #fff;
	z-index: 9999;
}
header .head-nav{
	height: 100%;
	display: flex;
	justify-content: space-between;
}
header .head-nav .left-box{
	display: flex;
	justify-content: flex-start;
	align-items: center;
}
header .head-nav .left-box .logo{
	display: flex;
	width:124px;
	align-items: center;
	justify-content: center;
}
header .head-nav .left-box .hjy{
	display: block;
	/* margin-left: 30px; */
	font-size: 28px;
}
header .head-nav .right-box{
	display: flex;
	justify-content: flex-end;
	align-items: center;
}
header .head-nav .right-box .nav-group{
	position: relative;
	font-size: 16px;
	color:#000;
	margin-left: 30px;
}
header .head-nav .right-box .nav-group:after{
	position: absolute;
	left:0;
	bottom:-10px;
	content: "";
	width: 100%;
	height: 2px;
	background-color: transparent;
}
header .head-nav .right-box .nav-group.on{
	color:var(--blue);
}
header .head-nav .right-box .nav-group.on::after{
	background-color: var(--blue)
}
header .head-nav .right-box .nav-group:hover{
	color:var(--blue);
}

/*module*/
.module{
	margin:0 auto;
}
.module-title{
	padding-top:100px;
}
.module-title .title{
	font-size: 32px;
	color: #333;
	font-weight: bold;
	text-align: center;
}
.module-title .sub{
	margin-top: 10px;
	font-size: 18px;
	color: #999;
	text-align: center;
}
/*关于我们 about-us*/
.about-us{
	background-color: #202020;
}
.about-us .ab-con{
	margin:0 auto;
	width: 1170px;
	padding:30px 0;
}
.about-us .company-name{
	font-size: 20px;
	text-align: center;
	padding:20px 0;
	color:#fff;
}
.about-us .ab-con .box{
	display: flex;
	width:100%;
	justify-content: space-between;
	font-size: 14px;
	color:#fff;
}
.about-us .ab-con .box .left{
	width:870px;
}
.about-us .ab-con .box .left>.text{
	line-height: 2;
}
.about-us .ab-con .box .left .address{
	margin-top: 10px;
	margin-bottom: 30px;
	display: flex;
	justify-content: flex-start;
}
.about-us .ab-con .box .left .address li{
	line-height: 2;
	margin-right: 30px;
}
.about-us .ab-con .box .left .friendlink{
	display: flex;
	justify-content: flex-start;
	margin-top: 10px;
}
.about-us .ab-con .box .left .friendlink li{
	margin-right: 30px;
}
.about-us .ab-con .box .left .friendlink li a{
	font-size: 14px;
	line-height: 2;
	color:#fbfbfb;
}
.about-us .ab-con .box .left .friendlink li a:hover{
	color:var(--blue);
}
.about-us .ab-con .box .right{
	width:270px;
	display: flex;
	justify-content: space-between;
}
.about-us .ab-con .box .right .code-box{
	width:100px;
}
.about-us .ab-con .box .right .code-box .text{
	font-size: 14px;
	line-height: 2;
	margin-bottom: 20px;
	text-align: center;
}
.about-us .ab-con .box .right .code-box img{
	width:100%;
	height: auto;
}
/*copyright*/
.copyright{
	font-size: 14px;
	color: #fff;
	line-height: 3;
	text-align: center;
	background-color: #202020;
	border-top:1px solid #4d4d4d;
}
/***************************************************************/

.banner-box{
	display: block;
	width: 100%;
	min-width: 1170px;
	position: relative;
}
.banner-box img{
	width: 100%;
	height: auto;
}
.banner-box  .text-box{
	position: absolute;
	width: 100%;
	height: 100%;
	left:0;
	top:0;
	display: flex;
	justify-content: center;
	flex-direction: column;
}
.banner-box  .text-box .en{
	opacity: 0;
	font-size: 30px;
	color:#fff;
	text-align: center;
}
.banner-box  .text-box .en.show{
	opacity: 1;
	transition: opacity 4s;
}
.banner-box  .text-box .ch{
	opacity: 0;
	margin-top: 20px;
	font-size: 72px;
	color:#fff;
	text-align: center;
}
.banner-box  .text-box .ch.show{
	opacity: 1;
	transition: opacity 4s;
}
/*case-show 案例展示*/
.case-show .nav-box{
	margin-top: 50px;
	height: 70px;
	border:1px solid #EEE;
	box-sizing: border-box;
}
.case-show .nav-box .con{
	width: 1170px;
	height: 100%;
	margin:0 auto;
	display: flex;
	justify-content: flex-start;
	align-items: center;
}
.case-show .nav-box .con .nav-item{
	padding:10px 30px;
	font-size: 14px;
	cursor:pointer;
}
.case-show .nav-box .con .nav-item:hover{
	color:#029fe9;
}
.case-show .nav-box .con .nav-item.on{
	color:#fff;
	background-color: #029fe9;
}
.case-show .nav-box .con .nav-item.on:hover{
	color:#fff;
}
.case-show .show-box{
	margin:0 auto;
	margin-top: 20px;
	width:1170px;
}
.case-show .show-box:after{
	content: "";
	display: block;
	clear: both;
}
.case-show .show-box .case-group{
	float:left;
	width: 370px;
	margin-bottom: 40px;
	margin-right: 30px;
}
.case-show .show-box .case-group:nth-child(3n){
	margin-right: 0;
}
.case-show .show-box .case-group .imgbox{
	display: block;
	width: 370px;
	height: 370px;
}
.case-show .show-box .case-group .imgbox img{
	width: 100%;
	height: 100%;
	transition:transform 1s;
}
.case-show .show-box .case-group .imgbox img:hover{
	transform: scale(1.08);
	transition:transform 1s;
}
.case-show .show-box .case-group .dec{
	display: block;
	font-size: 18px;
	font-weight: bold;
	margin-top: 30px;
	color:#333;
	overflow: hidden;
	white-space: nowrap;
	text-overflow: ellipsis;
}
.case-show .show-box .case-group .dec:hover{
	color:var(--blue);
}
.case-show .show-box .case-group .source{
	display: block;
	margin-top: 10px;
	font-size: 14px;
	color: #999;
	overflow: hidden;
	white-space: nowrap;
	text-overflow: ellipsis;
}
.case-show .btn-box{
	margin-top: 20px;
	margin-bottom: 80px;
	display: flex;
	justify-content: center;
}
.case-show .btn-box .btn{
	width:170px;
	height: 44px;
	border:0;
	border-radius: 22px;
	background-color: #eee;
	color:#999;
	font-size: 16px;
	text-align: center;
	line-height: 44px;
	outline: none;
	cursor:pointer;
}
.case-show .btn-box .btn:hover{
	background-color: var(--blue);
	color:#fff;
}