html{width: 100%;height: 100%;position: relative}
body{margin: 0;padding: 0;font-family: "Microsoft Yahei", "Helvetica Neue", Helvetica, Arial, sans-serif;position: absolute;height: 100%;width: 100%}
.clear{clear: both}
ul ,li, a {list-style: none;text-decoration: none;margin: 0;padding: 0}
a{cursor: pointer}
img{vertical-align: middle}
h1,h2,h3,h4,h5,h6,p{font-weight: 200;margin: 0}


.public_bjy{width: 100%;position: absolute;    height: 100%;}
.public_bjy .banner_bg{width: 100%;height: 100%;min-width: 1200px;background-image: url('banner.jpg');background-repeat: no-repeat;background-size: 100% 100%;}
/*logo*/
.logo{position: absolute;z-index: 2;top: 16%;left: 10%}
/*导航*/
.nav{position: absolute;left:10%;top: 40%;z-index:2 }
.nav >li{margin-top: 6px  ;position: relative}
.nav >li.on:before{content: url("dqt.png");margin-right: 6px}
.nav >li a{color: #444444;font-size: 16px }
.nav >li.on a{color: #111111;font-size: 16px }

.nav >li .nei_nav{margin-left: 21px;display: none}
.nav >li .nei_nav.on{margin-left: 21px;display: block}
.nav >li .nei_nav >li{margin-top: 4px}
.nav >li .nei_nav >li a{font-size: 14px;color: #666666}
.nav >li .nei_nav >li.on a{font-size: 14px;color: #333333}

/*底部*/
.footer{width: 100%;text-align: center;font-size: 14px;color: #666666;position: absolute;bottom:50px;left: 0%}
.footer a{color:#666;}
.footer a:hover{color:#333;}




@media (min-width: 0px) and (max-width: 1280px) {
    body{min-height: 512px}
    .footer{width: 100%;text-align: center;font-size: 14px;color: #666666;position: absolute;top:92%;left: 0%}

    /*logo*/
    .logo{position: absolute;z-index: 2;top: 10%;left: 10%}
    /*导航*/
    .nav{position: absolute;left:10%;top: 30%;z-index:2 }
    .nav >li{margin-top: 6px  ;position: relative}
    .nav >li.on:before{content: url("dqt.png");margin-right: 6px}
    .nav >li a{color: #444444;font-size: 13px }
    .nav >li.on a{color: #111111;font-size: 13px }

    .nav >li .nei_nav{margin-left: 21px;display: none}
    .nav >li .nei_nav.on{margin-left: 21px;display: block}
    .nav >li .nei_nav >li{margin-top: 4px}
    .nav >li .nei_nav >li a{font-size: 12px;color: #666666}
    .nav >li .nei_nav >li.on a{font-size: 12px;color: #333333}

}

@media (min-width: 1281px) and (max-width: 1400px) {
    body{min-height: 842px}
    .footer{width: 100%;text-align: center;font-size: 14px;color: #666666;position: absolute;top:90%;left: 0%}
}
@media (min-width: 1401px) and (max-width: 1440px) {
    body{min-height: 690px}
    .footer{width: 100%;text-align: center;font-size: 14px;color: #666666;position: absolute;top:90%;left: 0%}
}
@media (min-width: 1441px) and (max-width: 1920px) {
    body{min-height:872px}
    .footer{width: 100%;text-align: center;font-size: 14px;color: #666666;position: absolute;top:90%;left: 0%}
}


/*引导页*/
.index_bg{position: absolute;height: 100%;width: 100%; background-image:url('index_bg.jpg')}
.index_body{width:80%; margin:0 auto;margin-top:1%;}
.index_logo{ width:93%;}
.index_logo_l{width:30%;float:left; height:80px;line-height:80px; padding-left:8%;}
.index_logo_r{width:47%;float:right; margin-top:50px;text-align:right; height:30px; line-height:30px;}
.index_logo_r a{color:#666;}
.index_logo_r label{padding-left:8px;padding-right:8px; text-align:center;}
.index_video{height:720px; text-align:center; width:100%}
.index_botton{text-align:center;color:#333;margin-top:2%; font-size:13px;}
.index_botton a{color:#333;}
.top_home{position:relative;z-index:100;top:30px;text-align:right;padding-right:100px;}
.top_home a{color:#333;}