.banner {
	height: 36rem;
	margin-bottom: 4rem;
	padding: 6rem 0 2;
	background-image: url(../img/caseimg.jpg);
}
.banner .flex .flex_list.case_video {
	width: 48.5%;
	padding: 0;
}

/* 案例分类标签 */
.case_nav ul {
	width: 100%;
	margin-bottom: 1.5rem;
}
.case_nav li {
	width: 100%;
	max-width: 7.5rem;
	min-width: 4.5rem;
	line-height: 2.5rem;
	margin: 0 0.5rem;
}
.case_nav li a {
	font-size: 0.875rem;
	color: #999;
}
.case_nav li a:hover {
	text-decoration: underline;
}
.case_nav li.active a {
	width: 100%;
	font-size: 0.875rem;
	color: #19a1ee;
	border: 1px solid;
	border-radius: 2rem;
	background: #eff3f5;
}

/* 案例列表展示 */
.flex.flex_3.case_list,
.flex.flex_5.case_list {
	flex-flow: wrap;
	margin-bottom: 2rem;
}
.flex_5 li {
	width: 18%;
	margin: 0.625rem 1%;
}
.case_list li {
	background: #fbfbfb;
}
.case_list li .case_img {
	position: relative;
	display: block;
	width: 100%;
	padding: 0.625rem;
	background: #f5f5f5;
	cursor: pointer;
}
.case_list li em {
	display: block;
	width: 100%;
	height: 12rem;
	overflow: hidden;
}
.case_qr {
	position: absolute;
	left: 0;
	top: 0;
	
	display: none;
	width: 100%;
	height: 100%;
	background:rgba(0,0,0,0.8) url(../img/videopop.png) left top repeat;
	color: #fff;
	font-size: 0.875rem;
}
.case_qr i {
	display: inline-block;
	width: 40%;
	padding: 3%;
	background: #fff;
	margin: 3rem 30% 0.5rem;
	border-radius: 3px;
}

.case_list li em img {
	
}
.case_list h4 {
	font-size: 1rem;
	text-align: left;
	padding: 0.625rem;
}
.case_list h4 i {
	display: inline-block;
	max-width: 3rem;
	margin-right: 0.625rem;
}

.case_btn span {
	display: inline-block;
	width: 50%;
	width: 48%\9;
	padding: 0.625rem;
}
.case_btn a {
	width: 100%;
	line-height: 2rem;
	background: #f8f8f8;
	color: #666;
	border: 1px solid #ccc;
	border-radius: 3px;
}
.case_btn a:hover {
	background: #19A1EE;
	border-color: #19A1EE;
	color: #fff;
}

/* 响应式代码 */

@media screen and (max-width:1300px){
	.flex_5 li {
		width: 23%;
	}
	.banner {
		margin-bottom: 2rem;
	}
}
@media screen and (max-width:1080px) {
	.banner .flex_list h3 {
		margin-top: 2rem;
	}
}
@media screen and (max-width:940px) {

	
}
@media screen and (max-width:720px) {
	
	.flex.case_nav {
		display: none;
	}
	.flex_5 li {
		width: 31.33%;
	}
	.case_btn a {
		line-height: 3rem;
	}
}
@media screen and (max-width:640px) {
	.flex_5 li {
		width: 44%;
		margin: 0 3%;
	}
}
@media screen and (max-width:480px) {
	
	.flex_5 li {
		width: 48%;
		margin: 0 1%;
	}
	.case_btn.flex {
		flex-flow: wrap;
	}
	.case_btn span {
		width: 100%;
	}
}