body{
	background-color: black;
	width:100%;
	overflow-x:hidden;
}
.top{
	width: 1920px;
	height: 90px;
	background-color: #fff;
	text-align: center;
    margin: 0 auto;
	
}
.top_logo{
	width: 230px;
	height: 90px;
	float: left;
	margin: 15px 0 15px 350px;
}
.top_nav{
	width: 700px;
	list-style: none;
	float: left;
	margin: 26px 0 26px 400px;
	font:lighter 26px/1.5em "Microsoft YaHei";
}
.top_nav li{
	margin: 0 50px 0 0;
	float: left;
	list-style:none;
}
.top_nav li a{
	text-decoration: none;
	color: black;
}
.main{
	width: 100%;
}
#main_top{
	width: 100%;
	height: 100%;
	overflow:hidden;
}
.main_content_img img{
	width: 100%;
	height: 100%;
	margin:-65px 0 0 0;
}
.main_content_img div{
	width: 600px;
	height: 200px;
	position:absolute;
	bottom:0;
	padding: 0 0 400px 50%;
	overflow-y:hidden;
}
.div_menu_img{
	width: 60px;
	height: 60px;
	margin:0 auto;
}
#lower{
	position:absolute;
	bottom:0;
	left:50%;
	margin-left:-50px;
}

.platform_pic {
    width: 1920px;
    height: 120px;
    margin: 0 auto;
    margin-top: 60px;
}
.platform_pic_1 {
    width: 134px;
    height: 108px;
    float: left;
    background-image: url(../img/index1/tp2.png);
    margin-left: 460px;
}
.platform_pic_1:hover{
	width: 134px;
    height: 108px;
	background-image: url(../img/index1/tp_1.png);
}
.platform_pic_2 {
    width: 134px;
    height: 108px;
    float: left;
    background-image: url(../img/index1/tp3.png);
    margin-left: 35px;
}
.platform_pic_2:hover{
	width: 134px;
    height: 108px;
	background-image: url(../img/index1/tp_2.png);
}
.platform_pic_3 {
    width: 134px;
    height: 108px;
    float: left;
    background-image: url(../img/index1/tp4.png);
    margin-left: 35px;
}
.platform_pic_3:hover{
	width: 134px;
    height: 108px;
	background-image: url(../img/index1/tp_3.png);
}
.platform_pic_4 {
    width: 134px;
    height: 108px;
    float: left;
    background-image: url(../img/index1/tp5.png);
    margin-left: 35px;
}
.platform_pic_4:hover{
	width: 134px;
    height: 108px;
	background-image: url(../img/index1/tp_4.png);
}
.platform_pic_5 {
    width: 134px;
    height: 108px;
    float: left;
    background-image: url(../img/index1/tp6.png);
    margin-left: 35px;
}
.platform_pic_5:hover{
	width: 134px;
    height: 108px;
	background-image: url(../img/index1/tp_5.png);
}
.platform_pic_6 {
    width: 134px;
    height: 108px;
    float: left;
    background-image: url(../img/index1/tp7.png);
    margin-left: 35px;
}
.platform_pic_6:hover{
	width: 134px;
    height: 108px;
	background-image: url(../img/index1/tp_6.png);
}
.platform_link {
    width: 1920px;
    height: 102px;
    margin: 0 auto;
    margin-top: 30px;
}

.platform_link_1 {
    float: left;
    width: 150px;
    height: 102px;
    text-align: center;
    margin-left: 440px;
}
.platform_link_2 {
    float: left;
    color: white;
    width: 150px;
    height: 102px;
    text-align: center;
    margin-left: 23px;
}
.platform_link_1 a,.platform_link_2 a{
	width: 135px;
	color: white;
	font: 20px/1.5 "Helvetica Neue",Helvetica,Arial,"Microsoft Yahei","Hiragino Sans GB","Heiti SC","WenQuanYi Micro Hei",sans-serif;
	text-decoration: none;
}
.platform_link_1 span,.platform_link_2 span{
	font-size: 12px;
}
.mainDiv{
	width:100%;
	margin: 0 auto;
}
.main_content{
	width:100%;
	margin: 0 auto;
}
.main_content_1{
	width: 1920px;
	height: 1080px;
	background-image: url(../img/index1/bj.jpg);
	margin: 0 auto;
    overflow: hidden;
    position: relative;
    left: 50%;
    margin-left: -960px;
}
.platform_nav_all img{
	width: 404px;
	height: 60px;
	margin: 300px 0 0 0;
}
.platform_nav{
	margin: 20px 0 0 0;
	line-height:30px;
	color: white;
	font:lighter 20px/1.5em "Microsoft YaHei";
}
.main_content_2{
	width: 1920px;
	height: 510px;
	background-image: url(../img/index2/bj.png);
	margin: 0 auto;
    overflow: hidden;
    position: relative;
    left: 50%;
    margin-left: -960px;
}
.main_content_typ{
	float: left;
	color: #66abf8;
	margin: 100px 0 0 400px;
}
.main_content_typ_left{
	width: 540px;
	height: 180px;
	float: left;
}
.main_content_typ_1{
	font:50px/1.5 "Helvetica Neue",Helvetica,Arial,"Microsoft Yahei","Hiragino Sans GB","Heiti SC","WenQuanYi Micro Hei",sans-serif;
	float: left;
}
.main_content_typ_1 img{
	width: 93px;
	height: 75px;
	margin: 0 50px 35px 0;
}
.main_content_typ_2{
	font:35px/1.5 "Helvetica Neue",Helvetica,Arial,"Microsoft Yahei","Hiragino Sans GB","Heiti SC","WenQuanYi Micro Hei",sans-serif;
	float: left;
}
.main_content_typ_3{
	font:20px/1.5 "Helvetica Neue",Helvetica,Arial,"Microsoft Yahei","Hiragino Sans GB","Heiti SC","WenQuanYi Micro Hei",sans-serif;
	float: left;
}
.main_content_pic img{
	margin: 11px 160px 0 0;
	width:550px;
	height: 500px;
}
.main_content_3{
	width: 1920px;
	height: 697px;
	background-image: url(../img/index3/bj.jpg);
	margin: 0 auto;
    overflow: hidden;
    position: relative;
    left: 50%;
    margin-left: -960px;
	
}
.main_content_3_typ{
	padding: 120px 0 0 0;
}
.main_content_3_typ_1{
	height: 235px;
	font:50px/1.5 "Helvetica Neue",Helvetica,Arial,"Microsoft Yahei","Hiragino Sans GB","Heiti SC","WenQuanYi Micro Hei",sans-serif;
	color: white;
}
.main_content_3_typ_line{width:514px;height:2px;margin:0px auto;padding:0px;background-color:#aea59e;overflow:hidden;}
.main_content_3_typ_1 span{
	font-size: 200px;
}
.main_content_3_typ_2{
	color: white;
	font:25px/1.5 "Helvetica Neue",Helvetica,Arial,"Microsoft Yahei","Hiragino Sans GB","Heiti SC","WenQuanYi Micro Hei",sans-serif;
	margin: 10px 0 0 0;
}
.main_content_4{
	width: 1920px;
	height: 687px;
	background-image: url(../img/index4/bj.jpg);
	margin: 0 auto;
    overflow: hidden;
    position: relative;
    left: 50%;
    margin-left: -960px;
}
.main_content_4_typ{
	float: left;
	color: #66abf8;
	margin: 100px 0 0 400px;
}
.main_content_4_typ_left{
	width: 600px;
	height: 180px;
	float: left;
}
.main_content_4_typ_1{
	font:50px/1.5 "Helvetica Neue",Helvetica,Arial,"Microsoft Yahei","Hiragino Sans GB","Heiti SC","WenQuanYi Micro Hei",sans-serif;
	float: left;
}
.main_content_4_typ_1 img{
	width: 93px;
	height: 75px;
	margin: 0 50px 35px 0;
}
.main_content_4_typ_2{
	font:35px/1.5 "Helvetica Neue",Helvetica,Arial,"Microsoft Yahei","Hiragino Sans GB","Heiti SC","WenQuanYi Micro Hei",sans-serif;
	float: left;
}
.main_content_4_typ_3{
	font:20px/1.5 "Helvetica Neue",Helvetica,Arial,"Microsoft Yahei","Hiragino Sans GB","Heiti SC","WenQuanYi Micro Hei",sans-serif;
	float: left;
}
.main_content_pic_4 img{
	float: right;
	margin: 0 0 0 0;
	padding: 0 0 0 0;
	width:675px;
	height: 687px;
}