@media screen and (max-width:1130px){
.header .head,.i_m,.f_nav,.bq,.pst,.scd{width:960px;}
.head .nav_m{ width:690px; margin-right:55px;}
.head .nav li{ width:74px;}
.i_ma dl{ width:447px; margin-right:25px;}
.i_ma dl dd{ width:225px;}
.i_mb dl dd{ width:525px;}
.i_mc dl{ width:320px; height:183px;}
.i_mc dl dt, .i_mc dl dt img,.i_mc dl dd{ width:160px; height:183px;}
.i_mc dl dd .more{ margin-top:5px;}
.i_md ul li,.i_md ul li img{ width:178px; height:89px;}
.i_md ul li{ margin-right:12px; margin-bottom:15px;}
.i_more a{ font-size:16px;}
.f_nav .f_nl{ width:760px;}
.scd .scd_r{ width:717px;}
.service ul li{ width:243px; margin-right:10px;}
.service ul li img{ width:243px; height:159px;}
.sv_da dt, .sv_da dt img{ width:353px; height:309px;}
.sv_da dd{ width:380px;}
.sv_da dd .des{ height:auto;}
.duty dd{ width:495px;}
.news dl dd{ width:472px;}
/*工程案例*/
.engineering_case{ float:left; width:310px; height:240px;}
.eng_js{ float:left;width:310px; height:177px;}
#playBox{width:310px; height:206px; position:relative; overflow:hidden;}
#playBox .smalltitle {width:310px; height:10px; position:absolute; bottom:15px; z-index:10}
#playBox .smalltitle ul{ width:120px; padding-left:170px; float:left;}
/*新闻中心*/
.news_center{ float:left; width:310px; margin-left:10px; display:inline; }
.news_li{ float:left; width:300px; background:#f7f7f7; padding-left:10px;}
.news_li ul li{ float:left; width:300px; line-height:40px; height:40px; overflow:hidden; border-bottom:1px dashed #ccc; color:#797979;}
/*视频中心*/
.video_center{ float:left; width:290px; margin-left:10px;}
.video{ float:left; width:290px;display:inline;}
/*产品中心*/
.Product_main{ float:left; width:960px; margin-top:15px;}
.Product{ float:left; width:960px; margin-top:10px;}
.product_ta{overflow:hidden;width:960px; background:#FFF; text-align:center;}
}
@media screen and (max-width:990px){
.header .head,.i_m,.f_nav,.bq,.pst,.scd{width:740px;}
.header,.i_ma dl{ height:auto;background: -moz-linear-gradient(top, #000000 0%, #ffffff 100%);
    background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#FFFFFF), color-stop(100%,#EEEEEE));
    background: -webkit-linear-gradient(top, #FFFFFF 0%,#EEEEEE 100%);
    background: -o-linear-gradient(top, #FFFFFF 0%,#EEEEEE 100%);
    background: -ms-linear-gradient(top, #FFFFFF 0%,#EEEEEE 100%);
    background: linear-gradient(to bottom, #FFFFFF 0%,#EEEEEE 100%);}
.header .head{ height:auto;}
.head .nav_m{ float:none; width:100%; margin-top:0; margin-bottom:10px;}
.head .nav li{ width:80px;}
.head .head_t{ width:60%; margin-left:40%;}
.head .head_t .tel{ width:100%; margin-left:0; padding-top:15px;}
.i_ma dl{ width:340px; margin-right:15px;}
.i_ma dl dd{ width:100%; margin-bottom:10px;}
.i_mb dl dt, .i_mb dl dt img{ width:367px; height:199px;}
.i_mb dl dd{ width:360px; height:255px;}
.i_mb dl dd p{ line-height:185%;}
.i_mc dl{ width:370px; height:210px; margin-bottom:10px;}
.i_mc dl dt, .i_mc dl dt img,.i_mc dl dd{ width:183px; height:210px;}
.i_mc dl.n_2 dt{ float:left;}
.i_mc dl.n_2 dd{ float:right;}
.i_mc dl.n_2 dd i {left:-21px;background: url(../images/icon5.png) no-repeat;}
.i_md ul li, .i_md ul li img{ width:169px; height:84px;}
.i_md ul li{ margin-right:12px !important;}
.f_nav .f_nl{ width:600px;}
.scd .scd_r{ width:497px;}
.service ul li.chang{ width:497px;height:auto; margin-right:0px; margin-bottom:20px;word-wrap: break-word;}
.service ul li.chang img{width:497px;height:auto;vertical-align:top; border:1px #eeeeee solid;}
.service ul li{ width:230px; margin-right:10px; !important;}
.service ul li img{ width:230px; height:151px;}
.sv_da dt, .sv_da dt img{ width:497px; height:463px;}
.sv_da dd{ width:100%; margin-top:20px;}
.duty dd{ width:262px;}
.news dl dd{ width:252px;}

/*工程案例*/
.engineering_case{ float:left; width:360px; height:240px;}
.eng_js{ float:left;width:360px; height:177px;}
#playBox{width:360px; height:206px; position:relative; overflow:hidden;}
#playBox .smalltitle {width:360px; height:10px; position:absolute; bottom:15px; z-index:10}
#playBox .smalltitle ul{ width:120px; padding-left:170px; float:left;}
/*新闻中心*/
.news_center{ float:left; width:370px; margin-left:10px; display:inline; }
.news_li{ float:left; width:360px; background:#f7f7f7; padding-left:10px;}
.news_li ul li{ float:left; width:360px; line-height:40px; height:40px; overflow:hidden; border-bottom:1px dashed #ccc; color:#797979;}
/*视频中心*/
.video_center{ float:left; width:740px; margin-top:15px;margin-left:0;}
.video{display:none;}
.video2{ width:100%; height:508px; display:inline;}
.video3{ display:none;}
/*产品中心*/
.Product_main{ float:left; width:100%; margin-top:15px;}
.Product{ float:left; width:100%; margin-top:10px;}
.product_ta{overflow:hidden;width:100%; background:#FFF; text-align:center;}

}
@media screen and (max-width:770px) {
.header .head,.i_m,.f_nav,.bq,.pst,.scd{width:580px;}
.head .head_t{ width:100%; margin:0;}
.head .head_t .tel{ width:auto; padding:0;}
.head .logo{ margin-top:0;}
.head .head_t div{ margin-left:1px;}
.head .head_t .search{ width:150px;}
.head .search input[type="submit"]{ left:115px;}
.head .head_t .lang a{ width:60px;}
.head .nav{ width:100%;text-align:left;}
.head .nav li{ width:70px; padding-right:0;}
.i_ma dl{ width:210px; margin-right:18px; margin-bottom:18px;}
.i_mb dl dt{ width:100%; text-align:center;}
.i_mb dl dt img{ float:none; margin:0px auto;}
.i_mb dl dd{ width:100%; height:auto; margin-top:20px;}
.i_mc dl{ width:100%;}
.i_mc dl dd{ width:290px;}
.i_md ul li, .i_md ul li img{ width:192px; height:96px;}
.i_md ul{ text-align:center;}
.i_md ul li{ display:inline-block; *display:inline; zoom:1; margin:0 10px 15px !important; float:none;}
.f_nav .f_nl{ width:340px;}
.f_nav .f_nr{ margin-top:45px;}
.scd .scd_l{ width:100%; margin-top:10px;}
.scd_l .n_name{ width:560px;}
.scd_l .s_nav li .li_m{ width:450px;}
.scd .scd_r{ width:100%;}
.scd_r .about img{ margin:0 !important;}
.service ul li{ width:230px; margin-right:10px !important;}
.service ul li img{ width:230px; height:131px;}
.scd_l .s_nav li .er{ width:478px;}
.scd_l .s_nav li .er li{ width:438px;}
.sv_da dt, .sv_da dt img{ width:100%; height:auto;}
.duty dd,.news dl dd{ width:235px;}
/*主要工程案例大图式*/

.service ul li.chang{ width:100%;height:auto;float:left; margin-right:0; margin-bottom:40px;word-wrap: break-word;}
.service ul li.chang img{width:100%;height:auto;vertical-align:top; border:1px #eeeeee solid;}
/*左边样式*/
.menu_head{width:457px;height:47px;line-height:47px;padding-left:21px;font-size:14px;color:#525252;cursor:pointer;border:1px solid #e1e1e1;position:relative;margin:0px;font-weight:bold;background:#eeeeee url(../images/pro_left.png) center right no-repeat;}
.menu_body{width:478px;height:auto;overflow:hidden;line-height:38px;border-left:1px solid #e1e1e1;backguound:#fff;border-right:1px solid #e1e1e1;}
.menu_body a{display:block;width:478px;height:38px;line-height:38px;padding-left:23px;color:#777777;background:#fff;text-decoration:none;border-bottom:1px solid #e1e1e1;}
.menu_body a.on{display:block;width:478px;height:38px;line-height:38px;padding-left:23px;text-decoration:none;border-bottom:1px solid #e1e1e1;background:#00a73c; color:#fff; }
/*工程案例*/
.engineering_case{ float:left;width:100%; height:240px;}
.eng_js{ float:left;width:100%; height:177px;}
#playBox{width:100%; height:206px; position:relative; overflow:hidden;}
#playBox .smalltitle {width:100%;height:10px; position:absolute; bottom:15px; z-index:10}
#playBox .smalltitle ul{ width:60%; padding-left:40%; float:left;}
/*新闻中心*/
.news_center{ float:left; width:100%;display:inline; margin-left:0; margin-top:10px; }
.news_li{ float:left; width:95%;background:#f7f7f7; padding-left:5%;}
.news_li ul li{ float:left; width:95%;line-height:40px; height:40px; overflow:hidden; border-bottom:1px dashed #ccc; color:#797979;}
/*视频中心*/
.video_center{ float:left; width:100%; margin-left:0px;}
.video{display:none;}
.video2{display:none;}
.video3{float:left; width:580px; height:398px;display:inline;}
/*产品中心*/
.Product_main{ float:left; width:100%; margin-top:15px;}
.Product{ float:left;width:100%; margin-top:10px;}
.footer_content ul.tu{float:left; width:100%; height:205px;} 
}
@media screen and (max-width:510px) {
.header .head,.i_m,.f_nav,.bq,.pst,.scd{width:320px;}
.head .head_t{ height:auto; margin-bottom:10px;}
.head .logo{ width:230px; height:auto;}
.head .logo img{ width:100%; height:auto;}
.head .nav_m{ margin-top:-40px;}
.nav_m .n_icon{ display:block;}
.nav_m .nav{ width:100%; background:#FFF; position:absolute; right:0; top:45px; z-index:9999; display:none;}
.nav_m .nav li{ width:100%; text-align:right; margin:0;}
.nav_m .nav li a{ text-align:right; width:90%; padding:0 5%;}
.i_ma dl{ width:300px; margin-right:0;}
.i_ma dl dt img,.i_ma dl dt{ width:300px; height:214px;}
.i_mb dl dt img,.i_mb dl dt{ width:100%; height:auto;}
.i_mc dl dt, .i_mc dl dt img, .i_mc dl dd{ width:160px; height:183px;}
.i_mc dl{ height:183px;}
.i_md ul li, .i_md ul li img{ width:144px; height:72px;}
.i_md ul li{ margin:0 4px 15px !important;}
.f_nav .f_nl{ width:180px;}
.bq{ text-align:left;}
.bq span{ margin:0;}
.scd_l .n_name{ width:300px;}
.scd_l .s_nav li .li_m{ width:290px;}
.scd_l .s_nav li .er{ width:318px;}
.scd_l .s_nav li .er li{ width:278px;}
.service ul li{ width:320px; margin-right:0;}
.service ul li img{ width:320px; height:182px;}
.duty dt, .duty dt img{ width:320px; height:292px;}
.duty dd,.news dl dd{ width:100%; margin-top:10px;}
.news dl dt, .news dl dt img{ width:320px; height:183px;}
.product_ta{overflow:hidden;width:320px; background:#FFF; text-align:center;}
/*左边样式*/
.menu_head{ width:95%; height:47px;line-height:47px;padding-left:5%;font-size:14px;color:#525252;cursor:pointer;border:1px solid #e1e1e1;position:relative;margin:0px;font-weight:bold;background:#eeeeee url(../images/pro_left.png) center right no-repeat;}
.menu_body{ width:100%; height:auto;overflow:hidden;line-height:38px;border-left:1px solid #e1e1e1;backguound:#fff;border-right:1px solid #e1e1e1;}
.menu_body a{display:block; width:95%; height:38px;line-height:38px;padding-left:5%;color:#777777;background:#fff;text-decoration:none;border-bottom:1px solid #e1e1e1;}
.menu_body a.on{display:block; width:95%; height:38px;line-height:38px;padding-left:5%;text-decoration:none;border-bottom:1px solid #e1e1e1;background:#00a73c; color:#fff; }
/*视频中心*/
.video{ float:left; width:300px;display:inline;}
.video2{ display:none;}
.video3{ display:none;}
/*底部样式*/
.footer_content ul{float:left; width:100%; padding-right:0px; padding-left:0px;}
.footer_content ul li{float:left;width:100%; text-align:center;  padding-top:10px;}
.footer_content ul.long{float:left;width:100%; padding-right:0px;}
.footer_content ul.long li{float:left;width:100%; }
.footer_content ul.chanpin{float:left;width:100%;  padding-right:0px;}
.footer_content ul.chanpin li{float:left;width:100%; }
.footer_content ul.tu{float:left; width:100%; height:205px; padding-left:50px;}
.map{ width:100%; height:400px;}
.biaoshi img{ width:100%; height:auto;vertical-align: middle;
text-align: center;}
}