.index_about{
	width: 82%;
    margin: 50px auto 0;
	}
.index_about .leftimg{ width:50%; display:block; float:left;}
.index_about .leftimg .topvideo{}
.index_about .leftimg .topvideo video{ width:100%; height:440px}
.index_about .leftimg .topvideo img{ max-width:100%; height: auto}
.index_about .leftimg  .botimg{ margin-top:20px;}
.index_about .leftimg  .botimg img{ max-width:100%; height: auto}
.index_about .righttxt{ width:47%; display:block; float:right}
.index_about .righttxt .tit{ border-bottom:2px solid #666; font-size:24px; line-height:70px}
.index_about .righttxt .tit span{
	font-size: 21px;
    line-height: 40px;
    font-family: Arial, Helvetica, sans-serif;
    color: #ca0000;
    margin-left: 5px;
	}
.index_about .righttxt .txt{
    margin-top: 15px;
    height: 720px;
    display: block;
    overflow: hidden;
	}
.index_about .righttxt .txt *{
	text-align: justify;
    font-size: 17px;
    line-height: 36px;
    color: #444;
	}
.index_gcyj{
    width: 82%;
    margin: 50px auto 80px;
	}
.index_gcyj .title{ text-align:center; font-size:36px; font-size:36px; font-weight:bold; line-height:2}
.index_gcyj h1{
	font-weight: bold;
    line-height: 2;
    font-size: 28px;
    color: #0047a8;}
.pord_list {
	padding:15px 0
}
.pord_list li {
	float: left;
	width: 24%;
	margin: 1.3% 1.3% 0 0;
	position: relative;
}
.pord_list li:nth-child(4n) {
margin-right:0
}
.pord_list li div {
	width:100%;
	height: auto;
	overflow:hidden;
	position:relative;
}
.pord_list li div img.prpic {
	width:100%;
	transition:all 0.4s;
	-webkit-transition:all 0.4s;
	-moz-transition:all 0.4s;
	-o-transition:all 0.4s;
}
.pord_list li:hover div img.prpic {
	transform:scale(1.1);
	-webkit-transform:scale(1.1);
	-moz-transform:scale(1.1);
	-o-transform:scale(1.1);
}
.pord_list li p {
	display:block;
	line-height:50px;
	height:50px;
	overflow:hidden;
	text-align:center;
	font-size:18px;
	background: rgba(0, 0, 0, 0.3);
	color: #fff;
	transition: all 0.4s;
	position: absolute;
	width: 100%;
	left: 0;
	bottom: 0;
}
.pord_list li:hover p {
	background:#4d6394;
	color:#fff
}

 @media (max-width:1680px){
	 .index_gcyj h1 {
    font-weight: bold;
    line-height: 2;
    font-size: 24px;
    color: #0047a8;
}
.index_about .righttxt .txt * {
    text-align: justify;
    font-size: 16px;
    line-height: 32px;
    color: #444;
}
	 }
 @media (max-width:1600px){
	 .index_about .righttxt .txt * {
    text-align: justify;
    font-size: 15px;
    line-height: 31px;
    color: #444;
}
	 }
 @media (max-width:1440px){
	 .index_gcyj h1 {
    font-weight: bold;
    line-height: 2;
    font-size: 22px;
    color: #0047a8;
}
.index_about .righttxt .txt * {
    text-align: justify;
    font-size: 16px;
    line-height: 32px;
    color: #444;
}
.index_about .righttxt .txt {
    margin-top: 15px;
    height: 580px;
    display: block;
    overflow: hidden;
}
	 }


 @media (max-width:550px){
.index_gcyj {
    width: 92%;
    margin: 20px auto 40px;
}
.index_gcyj .title {
    text-align: center;
    font-size: 26px;
    font-weight: bold;
    line-height: 2;
}
.index_gcyj h1 {
    font-weight: bold;
    line-height: 1.6;
    font-size: 18px;
    color: #0047a8;
}
.pord_list {
    padding: 10px 0;
}
.pord_list li {
    float: left;
    width: 48.5%;
    margin: 2.5% 2.5% 0 0;
    position: relative;
}
.pord_list li:nth-child(2n){
margin-right:0
}
.index_about {
    width: 92%;
    margin: 30px auto 0;
}
.index_about .leftimg {
    width: 100%;
    display: block;
    float: none;
}
.index_about .leftimg .topvideo video{ width:100%; height: auto}
.index_about .leftimg .botimg {
    margin-top: 10px;
}
.index_about .righttxt {
    width: 100%;
    display: block;
    float: none;
}
.index_about .righttxt .tit {
    border-bottom: 2px solid #666;
    font-size: 22px;
    line-height: 60px;
}
.index_about .righttxt .tit span {
    font-size: 18px;
    line-height: 40px;
    font-family: Arial, Helvetica, sans-serif;
    color: #ca0000;
    margin-left: 5px;
}
.index_about .righttxt .txt {
    margin-top: 15px;
    height:480px;
    display: block;
    overflow: hidden;
}
.index_about .righttxt .txt * {
    text-align: justify;
    font-size: 14px;
    line-height: 24px;
    color: #444;
}
	 }