body{font-family: "Microsoft YaHei" ! important;}
.block_2{height:309px; margin:0 auto; /*background:url(../images/brief.jpg)center top no-repeat; background-size:cover;*/ background-color:#eeeeec;}
.block_2 .brief{width:1000px; height:310px; margin:0 auto; background-color:#fff; overflow:hidden;}
/*.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{background:url(../images/spzj.png)center top no-repeat;/* background-size:cover;*/ background-color:#eeeeec; padding-top:135px;}
.block_3 .constr{width:1000px; margin:0 auto;}
.block_3 .constr ul{width:1030px; overflow:hidden;}
.block_3 .constr ul li{width:313px; height:345px; overflow:hidden; /*background:url(../images/li_bg.jpg)center top no-repeat;*/ float:left; position:relative; margin-right:30px; margin-bottom:20px;}
.block_3 .constr ul li .li_bg{width:300px; height:180px; background-color:#fff; border:4px solid #b0b0b0;}
.block_3 .constr ul li img{width:290px; height:170px; margin-top:5px; margin-left:5px;}
.block_3 .constr ul li i.i_video{width:55px; height:55px; background:url(../images/playIcon.png)center top no-repeat;background-size:cover; position:absolute; top:75px; left:130px;}
.wj_title{width:313px; /*height:60px;*/ margin-top:25px; font-size:16px; color:#202020;}
.jj_desc{width:313px; height:85px; margin-top:12px; font-size:14px; color:#6f6e6e; line-height:1.8em;}


.block_4{background-color:#eeeeec;}
.block_4 .constr{width:1000px; margin:0 auto;}
.block_4 .constr ul{width:1030px; overflow:hidden;}
.block_4 .constr ul li{width:313px; height:345px; overflow:hidden; /*background:url(../images/li_bg.jpg)center top no-repeat;*/ float:left; position:relative; margin:0 30px 50px 0;}
.block_4 .constr ul li .li_bg{width:300px; height:180px; background-color:#fff; border:4px solid #b0b0b0;}
.block_4 .constr ul li img{width:290px; height:170px; margin-top:5px; margin-left:5px;}
.block_4 .constr ul li i.i_video{width:55px; height:55px; background:url(../images/playIcon.png)center top no-repeat;background-size:cover; position:absolute; top:75px; left:130px;}

.zcjd_title{height:144px; background:url(../images/zcjd.png)center top no-repeat; background-size:cover;}

.jztw_title{height:144px; background:url(../images/jztw.png)center top no-repeat; background-size:cover;}
.brief_left{padding-top:23px; margin-left:18px; margin-right:30px; width:465px; height:260px; float:left;}
.brief_left img{width:465px; height:260px;}
.brief_right{width:473px; height:260px; float:left;}
.brief_right .zxdt_title{width:473px; padding-top:23px; line-height:40px; font-size:22px; color:#000000;}
.brief_right .zxdt_content{width:473px; height:200px; margin-top:10px; text-indent:2em; line-height:1.8em; font-size:14px; color:#333;}
.brief_right .zxdt_content span.xsqw{color:#f99800;}

.block3_bottom{height:4px; background:url(../images/block3_bottom.jpg) center top no-repeat;background:cover;}