header{
    width: 1200px;
    margin: 30px auto;
    overflow: hidden;
}
header>p{
    float: left;
    margin-right: 100px;
}
header ul{
    overflow: hidden;
    float: left;
}
header ul li{
    float: left;
    margin-right: 30px;
}
header ul li:last-child{
    margin: 0;
}
header ul li a{
    font-size: 20px;
    color: #333333;
    display: block;
    padding-bottom: 7px;
}
header ul li a.on{
    color: #327EE1;
    border-bottom: 1px solid #327EE1;
}
header ul li a:hover{
    color: #327EE1;
    border-bottom: 1px solid #327EE1;
}
header>div{
    width:170px;
    height: 32px;
    float: right;
    border: 1px solid #D4D4D4;
    border-radius: 20px;
    padding-right: 8px;
    position: relative;
}
header>div i{
    display: inline-block;
    width: 18px;
    height: 18px;
    background: url("../images/search.png") no-repeat center;
    position: absolute;
    top: 7px;
    right: 7px;
    cursor: pointer;
}
header>div input{
    width: 130px;
    height: 20px;
    padding-left: 15px;
    position: absolute;
    top: 5px;
}
nav{
    background: url("../images/nav_about_us.png") no-repeat center;
    height: 240px;
}
/*主体内容部分*/
#content{
    width: 1200px;
    margin: 0 auto;
    padding-top: 25px;
}
#content>p{
    margin-bottom: 35px;
}
#content>p span{
    color: #666666;
    font-size: 16px;
}
#content>p>a{
    font-size: 16px;
    color: #666666;
}
#content>p>a:hover{
    text-decoration: underline;
}
#content>p>a:last-child{
    color: #343434;
}
#content .main{
    overflow: hidden;
}
#content .main .lf{
    float: left;
}
#content .main .lf ul li{
}
    #content .main .lf ul li a {
        display: block;
        width: 196px;
        height:70px;
        line-height: 70px;
        text-align: center;
        font-size: 18px;
    }
    #content .main .lf ul li.active {
        background: url("../images/bg_title1.png") no-repeat center;
    }
#content .main .lf ul li.active a{
    color: #FFFFFF;
}
#content .main .rg{
    margin-left: 268px;
}
#content .main .rg>div{
    display: none;
}
#content .main .rg>div:first-child{
    display:block;
}
#content .rg h3 span{
    font-size: 24px;
    color: #333333;
    font-weight: normal;
    padding-bottom: 18px;
    border-bottom:  2px solid #327EE1;
}
#content .rg h3{
    padding-bottom: 20px;
    border-bottom:  1px solid #DFDFDF;
    margin-bottom: 35px;
}
    #content .rg > div > div > p {
        font-size: 15px;
        text-indent: 2em;
        line-height: 28px;
        color: #3F3F3F;
        margin-bottom: 5px;
    }
#content .rg>div>div>img{
    margin-top: 65px;
}
#content .rg ul{
    overflow: hidden;
}
#content .rg ul li{
    float: left;
    width: 280px;
    margin-right:30px;
    margin-bottom:20px;
}
#content .rg ul li a{
    display: block;
    width: 280px;
    height: 210px;
    text-align: center;
    /*border: 1px solid #E9E9E9;*/
}
#content .rg ul li a img{
    -webkit-transition: all 1s ease 0s;
    -moz-transition: all 1s ease 0s;
    -ms-transition: all 1s ease 0s;
    -o-transition: all 1s ease 0s;
}
#content .rg ul li a img:hover{
    transform: scale(1.05);
    -webkit-transform: scale(1.05);
    -moz-transform: scale(1.05);
    -ms-transform: scale(1.05);
    -o-transform: scale(1.05);
}
/*#content .rg ul li img{*/
    /*width: 280px;*/
    /*height: 210px;*/
/*}*/
#content .rg ul li:nth-child(3n){
    margin-right: 0;
}
#content .rg ul li p{
    font-size:15px;
    padding: 8px 0;
    color: #3F3F3F;
    text-align: center;
    min-height: 20px;
}