* {
    margin: 0;
    padding: 0;
}
html {
    background-color: #f8f8f8;
    height: 100%;
}
body {
    color: #333333;
    font: 0.75em/1.5em Arial,sans-serif; background:#f8f8f8; font-family:"微软雅黑";
}
.container {
    margin-left: auto;
    margin-right: auto;
    margin-top:0px;
    width: 100%;
}
/* common and top level styles */
#nav span {
    display: none;
}
#nav, #nav ul {
    list-style: none outside none;
    margin: 0;
    padding: 0;
}
#nav {
    background-color: #fff;
    border-bottom: 5px solid #39F;
    float: left;
    margin-left: 1%;
    margin-right: 1%;
    position: fixed; border-top:10px solid #f8f8f8;
    width: 98%;
}
#nav ul.subs {
    background-color: #FFFFFF;
    box-shadow: 1px 1px 5px rgba(0, 0, 0, 0.2);
    color: #333333;
    display: none;
    left: 0;
    padding: 2%;
    position: absolute;
    top: 54px;
    width: 96%;
}
#nav > li {
    border-bottom: 5px solid transparent;
    float: left;
    margin-bottom: -5px;
    text-align: left;
    -moz-transition: all 300ms ease-in-out 0s;
    -ms-transition: all 300ms ease-in-out 0s;
    -o-transition: all 300ms ease-in-out 0s;
    -webkit-transition: all 300ms ease-in-out 0s;
    transition: all 300ms ease-in-out 0s;
}
#nav li a {
    display: block;
    text-decoration: none;
    -moz-transition: color 450ms ease-in-out 0s, background-color 450ms ease-in-out 0s;
    -ms-transition: color 450ms ease-in-out 0s, background-color 450ms ease-in-out 0s;
    -o-transition: color 450ms ease-in-out 0s, background-color 450ms ease-in-out 0s;
    -webkit-transition: color 450ms ease-in-out 0s, background-color 450ms ease-in-out 0s;
    transition: color 450ms ease-in-out 0s, background-color 450ms ease-in-out 0s;
    white-space: normal;
}
#nav > li > a {
    color: #333333;
    display: block;
    font-size: 1.3em;
    line-height: 49px;
    padding: 0 15px;
    text-transform: uppercase;
}
#nav > li:hover > a, #nav > a:hover {
    background-color: #F55856;
    color: #FFFFFF;
}
#nav li.active > a {
    background-color: #39f;
    color: #FFFFFF;
}


/* submenu */
#nav li:hover ul.subs {
    display: block;
}
#nav ul.subs > li {
    display: inline-block;
    float: none;
    padding: 10px 1%;  
    vertical-align: top;
    width: 14%; overflow:hidden;
}
#nav ul.subs > li a {
    color: #777777;
    line-height: 20px;
}
#nav ul li a:hover {
    color: #F55856;
}
#nav ul.subs > li > a {
    font-size: 1.1em; font-weight:bold;
    margin-bottom: 10px;
    text-transform: uppercase; white-space:nowrap;
}
#nav ul.subs > li li {
    float: none;
    padding-left: 8px;
    -moz-transition: padding 150ms ease-out 0s;
    -ms-transition: padding 150ms ease-out 0s;
    -o-transition: padding 150ms ease-out 0s;
    -webkit-transition: padding 150ms ease-out 0s;
    transition: padding 150ms ease-out 0s;
}
#nav ul.subs > li li:hover {
    padding-left: 15px;
}


/* responsive rules */
@media all and (max-width : 180px) {
    #nav > li {
        float: none;
        border-bottom: 0;
        margin-bottom: 0;
    }
    #nav ul.subs {
        position: relative;
        top: 0;
    }
    #nav li:hover ul.subs {
        display: none;
    }
    #nav li #s1:target + ul.subs,
    #nav li #s2:target + ul.subs {
        display: block;
    }

    #nav ul.subs > li {
        display: block;
        width: auto;
    }
}
.kecheng, .kechengxiangqing{ width:98%; margin:auto; overflow:hidden;}
.kecheng a{float:left; max-width:186.5px; margin-right:15px; overflow: hidden; background:#fff; margin-top:15px; text-decoration:none;}
.kecheng a:hover{ box-shadow:0 0 20px #ccc;}
.kecheng a img{ width:186.5px; height:108px;}
.kecheng a p{ color:#333; font-size:13px; line-height:20px; height:40px; padding:0 10px; margin:2px 0; overflow:hidden;}
.kecheng a span{ font-size:12px; color:#999; display:block; padding:0 10px; padding-bottom:12px; margin-top:5px; display:none;}
.kechengxiangqing .a1{ border:1px solid #e5e5e5; margin-top:10px; background:#fff; padding:20px;}
.kechengxiangqing .a1 img{ width:300px; height:200px; float:left; margin-right:15px;}
.kechengxiangqing .a1 font{}
.kechengxiangqing .a1 font h1{font-size:18px; margin:2px 0 10px 0;}
.kechengxiangqing .a1 font h2{ background:#F60; border:1px solid #f60; float:left; margin-right:8px; font-size:14px; color:#fff; font-weight: normal; text-indent:5px; line-height:24px;}
.kechengxiangqing .a1 font h2 span{ display:block; color:#f60; background:#fff; float:right; padding-right:5px; margin-left:5px;}
.kechengxiangqing .a1 font p{ color:#666; margin:3px 0; line-height:20px;}
.kechengxiangqing .a2{border:1px solid #e5e5e5; margin-top:10px; background:#fff; padding:20px; margin-bottom:10px;}
.kechengxiangqing .a2 h1{ font-size:22px; line-height:28px; margin-bottom:15px;}
.kechengxiangqing .a2 a{color:#666; font-size:14px; line-height:36px; display:block; text-decoration:none; text-indent:20px;}
.kechengxiangqing .a2 a:hover{ background:#f8f8f8;}
.kechengxiangqing .a1 font p{ color:#666; margin:3px 0; line-height:20px;}
.kechengxiangqing .a3{border:1px solid #e5e5e5; margin-top:10px; background:#fff; padding:20px; margin-bottom:10px;}
.kechengxiangqing .a3 video{ width:100%; height:auto; max-width:640px; margin:auto; display:block;}
video::-webkit-media-controls-enclosure {overflow:hidden;}
video::-webkit-media-controls-panel {width: calc(100% + 30px);}
.kechengxiangqing .a3 p{ margin:8px 0; font-size:13px;}
.kechengxiangqing .a3 h1{ font-size:22px; line-height:28px; margin-bottom:15px;}
@media(max-width:769px) {
    .kecheng{width:94%; margin:auto;}
   .kecheng a{float:left; width:49.5%; margin-right:0; overflow: hidden; background:#fff; margin-top:15px; text-decoration:none;} 
    .kecheng a:nth-child(2n){float:right;}
}