html,body,div,p,ul,li,dl,dt,dd,input,button,*{
    margin:0;
    padding:0;
}
ul,li,dl,dt,dd{
    list-style: none;
}
a,a:link,a:visited,a:hover{
    text-decoration: none;
}
button{
    border: none;
}
/* 去除img的默认样式 */
img{
    vertical-align:top;
    border:none;
}
.left{
    float: left;
}.right{
    float: right;
}
.clearfix {
    *zoom: 1;
  }
  .clearfix:after {
    content: "";
    display: block;
    clear: both;
  }
  @media (min-width:1600px){
    .header .nav3{
        display: block;
        position: absolute;
        right: 0;
        top: 0;
    }
  }
  @media (max-width:1600px){
    .header .nav3{
        display: none;
        position: absolute;
        right: 0;
        top: 0;
    }
  }
  
/* 头部导航 */
.header{
    position: relative;
    margin-top: -1px;
    width: 100%;
    height: 128px;
    line-height: 48px;
    background: rgba(255,255,255,.5);
    background-image: url(../images/bg-nav.png);
    background-position: center;
    background-size: contain;
}
.header p{
    width: 100%;
    height: 1px;
    background-color: rgba(255,255,255,.3);
}
.header-content{
    width: 1200px;
    height: 48px;
    margin:0 auto;
    color: #FFFFFF;
    font-size:16px;
}
.header-bottom {
    width: 1200px;
    height: 79px;
    margin: 0 auto;
}
.header-bottom li{
    height: 79px;
}
.header-bottom li img{
   margin: 31.5px 0;
}

.header-content>li{
    cursor: pointer;
    border-right: 1px solid rgba(255,255,255,.3);
}
/* 设置导航条内容初始默认样式 */
.header-content>li .nav-content{
    height: 0;
    padding: 0 30px;
    background:#ffffff;
    color: #877A69;
    box-sizing: border-box;
    *behavior: url(./box-sizing.htc);
}
.header-content>li .nav-content li{
    display: none;
}
.header-content>li.active .nav-content{
    height: 80px;
    /*transition: height 500ms,padding 500ms;*/
    padding: 20px 30px;
}
.header-content>li.active .nav-content li{
    display: inline-block;
    /*transition: display 500ms;*/
    
}
.header-content .nav-content{
    cursor: text;
}
.header-content .nav-content>li,.header-content .nav-content dd{
    cursor: pointer;
}
.header-content .nav-content>li:hover,.header-content .nav-content dd:hover{
    color: #D50C00;
}
.header-content .zhengdang .nav-content>li:hover{
    color: #877A69;
}
.introduce,.schoolnews,.teaching,.zhengdang,.search{
    position: relative;
    float: left;
    width: 200px;
    height: 47px;
    background: #877A69;
    background-image: url("../images/base-bg.png");
    padding: 0 20px 0 20px;
    box-sizing: border-box;
}
.header-content>li>i{
    z-index: 999;
}
.header-content>li>span + i{
    font-size:8px;
    float: right;
}

.header-content .logo{
    width: 300px;
    height: 48px;
    box-sizing: border-box;
    *behavior: url(../box-sizing.htc);
    padding: 6px 20px;
    float: left;
    background: #D50C00;
}
.introduce.active,.schoolnews.active,.teaching.active,.zhengdang.active,.search.active{
    background: #F2EAE1;
    background-image: url("../images/base-bg.png");
    color: #877A69;
}
.introduce .nav-content{
    position: absolute;
    top: 48px;
    left: 0;
    width: 400px;
}
.schoolnews .nav-content{
    width: 602px;
    position: absolute;
    top: 48px;
    left: -200px;
}
li.teaching>.nav-content{
    width: 600px;
    position: absolute;
    top: 48px;
    left: -200px;
}

li.zhengdang .nav-content{
    padding: 0;
}
li.zhengdang.active .nav-content{
    position: absolute;
    top: 48px;
    right: -100px;
    width: 900px;
    padding: 20px 0 14px;
    /*transition: padding 500ms;*/
}
.zhengdang.active .nav-content li{
    margin-left: 30px;
    width: 511px;
    box-sizing: border-box;
    *behavior: url(../box-sizing.htc);
}
.zhengdang .nav-content li:first-child{
    width: 328px;
    border-right: 1px solid #EEEEEE;
}
.zhengdang .nav-content li,.zhengdang dt,.zhengdang dd{
    float: left;
}
.zhengdang dt{
    width:30px;
    height:40px;
    line-height: 20px;
    color:#D8271C;
    font-size:14px;
    font-weight:600;
    cursor: text;
}
.zhengdang dd{
    float: left;
    font-size:12px;
    padding-left: 20px;
    height: 23px;
    line-height: 17px;
}
.introduce .nav-content li,.schoolnews .nav-content li,.teaching .nav-content li{
    float: left;
    padding-right: 18px;
    height: 23px;
    line-height: 17px;
    font-size:12px;
}
.teaching .nav-content li:nth-child(7n){
    padding-right: 0;
}

.search,.search.active{
    color: #fff;
    width: 100px;
    background: #7A6D5D;
    background-image: url("../images/base-bg.png");
}
.search p{
    height: 0;
    padding:0 30px;
}
.search input,.search button,.search p>.iconfont{
    display: none;
}

.search.active p{
    position: absolute;
    top: 48px;
    right: 0;
    width: 602px;
    height: 80px;
    padding:20px 30px;
    box-sizing: border-box;
    *behavior: url(../box-sizing.htc);
    background: #fff;
    /*transition: height 500ms,padding 500ms;*/
}
.search.active input{
    position: relative;
    width: 462px;
    height: 40px;
    line-height: 40px;
    padding-left: 59px;
    border-radius:2px;
    border: 1px solid #979797;
    color:#877A69;
    box-sizing: border-box;
    *behavior: url(../box-sizing.htc);
    float: left;
    display: block;
    /*transition: display 500ms;*/
}
.search.active input::-webkit-input-placeholder { /* Chrome/Opera/Safari */ 
    color: #877A69;
}
.search.active input::-moz-placeholder { /* Firefox 19+ */  
    color: #877A69;
}
.search.active input:-ms-input-placeholder { /* IE 10+ */ 
 color: #877A69;
}
.search.active input:-moz-placeholder { /* Firefox 18- */ 
 color: #877A69;
}
.search.active p>.iconfont{
    color: #877A69;
    position: absolute;
    top: 20px;
    left: 32px;
    height: 40px;
    padding: 0 15px;
    border-right: 1px solid #979797;
    line-height: 40px;
    z-index: 999;
    display: inline-block;
    /*transition: display 500ms;*/
    cursor: text;
}

.search.active button{
    width: 70px;
    height: 40px;
    line-height: 40px;
    background: #F2EAE1;
    color: #877A69;
    border-radius:2px;
    float: right;
    display: block;
    /*transition: display 500ms;*/
    cursor: pointer;
}

#header .nav .logo{
    width: 299px;
    height: 48px;
    background-color: #D50C00;
}
#header .nav img{
    margin: 6px 0 6px 30px;
}
 #header .nav li.search{
     width: 100px;
}

/* 左边 */
.content-wapper{
    padding: 20px 0;
    background-color: #F2EAE1;
    background-image: url(../images/base-bg.png);
}
.content{
    width: 1200px;
    margin: 0 auto;
}
.content-left{
    float: left;
}

.content-left dt,.content-left dd{
    width: 255px;
    height: 48px;
    line-height: 48px;
    font-size: 16px;
    color: #877A69;
    padding: 0 20px 0 10px;
    cursor: pointer;
}
.content-left dt{
    color: #fff;
    background-color: #877A69;
    background-image: url(../images/base-bg.png);
}
.content-left dd span,.content-left dd .iconfont{
    font-size: 10px;
}
.content-left dd .iconfont{
    margin-left: 10px;
}
.content-left dd p{
    width: 265px;
    height: 1px;
    margin: 0 auto;
    background-color: #877A69;
    opacity:0.3;
}
.content-left dd.active{
    color: #D50C00;
}
.content-left dd.active p{
    color: #D50C00;
    background-color: #D50C00;
    opacity:0.6;
}


.content-right{
    width: 895px;
    float: right;
    display: none;
}
.content-right.active{
    display: block;
}

.content-right h2{
    width: 865px;
    height: 48px;
    font-size: 18px;
    line-height:48px;
    font-weight: 400;
    padding: 0 20px 0 10px;
    color: #fff;
    background-color: #877A69;
    background-image: url(../images/base-bg.png);
}

.content-right .span{
    font-size:12px;
    height: 48px;
    line-height:48px;
    cursor: pointer;
}

.content-right .p{
    font-size: 14px;
    color: #666;
    line-height:21px;
    background-color: #fff;
    background-image: url(../images/base-bg.png);
    padding: 60px 101px 60px 101px;
    height: 100%;
}

/* 底部备案 */
.footer{
    width: 100%;
    height: 90px;
    background: #000000;    
    color: #fff;
    font-size: 12px;
    line-height:17px;
}
.footer-content{
    width: 1200px;
    margin: 0 auto;
    padding: 20px 0;
    height: 50px;
}
.copyright{
    float: left;
    width: 50%;
}
.copyright p{
    margin-bottom: 16px;
}

.footer-content .others{
    float: right;
    width: 340px;
}
.footer-content .others ul{
    margin-bottom: 16px;
}
.footer-content ul li{
    height: 16px;
    line-height: 16px;
    width: 82px;
    border-left: 1px solid #fff;
    box-sizing: border-box;
    *behavior: url(../box-sizing.htc);
    display: inline-block;
    text-align: center;
    cursor: pointer;
}
.footer-content ul li:hover{
    color: #D50C00;
}
.footer-content ul li:nth-child(4n){
    border-right: 1px solid #fff;
}