.block_2{height:203px; margin:0 auto; background-color:#ececec;}
.block_2 .brief{width:1000px; height:203px; margin:0 auto; position: relative;}
.block_2 .brief_title{width:1000px; height:203px; margin:0 auto; position:absolute; background:url(../images/brief.jpg?1)center top no-repeat; background-size:cover;}
/*.block_2 .brief .brief_content{width:1000px; height:227px; margin:0 auto; background:url(../images/brief.jpg)center top no-repeat; background-size:cover;}*/
.block_3{padding:50px 0px 40px 0px; /*background:url(../images/content_bg.jpg)center top no-repeat;*/ background-color: transparent;}
.block_3 .constr{width:1000px; margin:0 auto;}
.block_3 .constr ul{width:1030px; overflow:hidden;}
.block_3 .constr ul li{width:313px; height:295px; overflow:hidden; background:url(../images/li_bg.jpg)center top no-repeat; float:left; position:relative; margin-right:30px;}
.block_3 .constr ul li img{width:290px; height:170px; margin-top:11px; margin-left:10px;}
.block_3 .constr ul li i.i_video{width:80px; height:80px; background:url(../images/playIcon.png)center top no-repeat;background-size:cover; position:absolute; top:58px; left:120px;}
.wj_title{width:235px; height:50px; margin-left:40px; margin-top:40px; font-size:18px; color:#333; overflow:hidden;}


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background:-moz-linear-gradient(top,#fa741c,#fb802f);火狐 
background:-webkit-gradient(linear, 0% 0%, 0% 100%,from(#fa741c), to(#fb802f));谷歌 
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background: -webkit-linear-gradient(top, #fa741c, #fb802f);   Safari5.1 Chrome 10+
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.block_3{FILTER: progid:DXImageTransform.Microsoft.Gradient(gradientType=0,startColorStr=#fb802f,endColorStr=#fdd0b2); IE 6 7 8 
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background: -webkit-linear-gradient(top, #fb802f, #fdd0b2);   Safari5.1 Chrome 10+
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.footer{background-color:#fff;}