.banner {
	width: 100%;
}

.banner img {
	display: block;
	width: 100%;
}

.main {
	background-color: #eef2f5;
	padding-top: 70px;
	padding-bottom: 110px;
}

.main h3.en_title {
	font-family: enfont;
	font-size: 48px;
	color: #21478b;
	line-height: 48px;
	text-align: center;
}

.main h3.title {
	font-family: pingfang;
	font-size: 36px;
	color: #333333;
	line-height: 72px;
	margin-bottom: 36px;
	text-align: center;
}

.main .technology_content {
	background-image: url(../images/tech_bg.jpg);
	background-repeat: no-repeat;
	background-position: center center;
	background-size: cover;
	padding-top: 70px;
	padding-bottom: 80px;
}

.main .technology_content .tech_summary {
	font-family: pingfang;
	font-size: 16px;
	color: #ffffff;
	line-height: 28px;
	margin-bottom: 60px;
}

.main .technology_content .tech_list li {
	float: left;
	width: calc(100% / 5);
	height: 480px;
	overflow: hidden;
	position: relative;
	cursor: pointer;
	webkit-transform: translateZ(0);
	-moz-transform: translateZ(0);
	-ms-transform: translateZ(0);
	-o-transform: translateZ(0);
	transform: translateZ(0);
}

.main .technology_content .tech_list li .floor {
	position: absolute;
	left: 0;
	top: 0;
	display: block;
	width: 100%;
	height: 100%;
	background-color: rgba(255,255,255,.7);
	transition: all 0.1s ease;
}

.main .technology_content .tech_list li:nth-child(even) .floor {
	background-color: rgba(255,0,0,.7);
}

.main .technology_content .tech_list li .floor p {
	font-family: pingfangh;
	font-size: 16px;
	height: 5.5em;
	color: #333333;
	line-height: 28px;
	padding: 0 20px;
	padding-top: 70px;
	padding-bottom: 55px;
	transition: all 0.5s ease;
}

.main .technology_content .tech_list li:nth-child(even) .floor p {
	color: #FFFFFF;
}

.main .technology_content .tech_list li .floor img {
	display: block;
	width: 100%;
}

.main .technology_content .tech_list li .layer {
	width: 100%;
	height: 100%;
	position: absolute;
	left: 0;
	top: 0;
	opacity: 0;
	transition: background-color 0.7s ease;
}

.main .technology_content .tech_list li .layer p {
	font-family: pingfangh;
	font-size: 16px;
	color: #FFFFFF;
	line-height: 28px;
	box-sizing: border-box;
	padding: 0 20px;
	padding-top: 70px;
	transition: all 0.5s ease;
}

.main .technology_content .tech_list li.hover .floor {
	opacity: 0;
}

.main .technology_content .tech_list li.hover .floor p {
	transform: translateY(80px);
}

.main .technology_content .tech_list li.hover .layer {
	opacity: 1;
	background-color: #1b4081;
}

.main .technology_content .tech_list li.hover .layer>p {
	transform: translateY(110px);
}

@media screen and (max-width: 450px) {
	.main {
		padding-top: 20px;
		padding-bottom: 0px;
	}
	
	.main h3.en_title {
		font-size: 28px;
		line-height: 28px;
	}
	
	.main h3.title {
		font-size: 30px;
		line-height: 45px;
		margin-bottom: 20px;
	}
	
	.main .technology_content {
		padding-top: 20px;
	}
	
	.main .technology_content .tech_summary {
		padding: 0 10px;
	}
	
	.main .technology_content .tech_list li {
		width: calc(100% / 2);
		height: 368px;
	}
	
	.main .technology_content .tech_list li.hover .layer>p {
		transform: translateY(70px);
	}
}