div#about_us{
    margin-bottom: 50px;
}
div#about_us>p{
    text-align: center;
    margin-bottom: 15px;
}

div#about_us p:first-child{
    color: #7C87A0;
    font-size: 20px;
    width: 1300px;
    border-bottom: 2px solid #E2E2E2;
    margin: 0 auto;
    margin-top: 30px;
    padding: 20px 0;
}
div#about_us p:nth-child(2){
    color: #D43B33;
    margin: 0 auto;
    margin-top: -25px;
    margin-bottom: 40px;
    /*margin-top: -25px;*/
    background-color: #FFFFFF;
    width: 200px;
    height: 50px;
    line-height: 50px;
    font-size: 21px;
    font-weight: 800;
}
/*div#about_us p:last-child{*/
    /*width: 110px;*/
    /*height: 30px;*/
    /*margin: 0 auto;*/
    /*font-weight: bold;*/
    /*border: 1px solid black;*/
    /*line-height: 30px;*/
    /*border-radius: 15px;*/
/*}*/
div#about_us p:nth-child(n+6) {
    font-family: Consolas;
}
div#corporate_culture{  /*企业文化*/
    width: 100%;
    height: 465px;
    background-image:url("../img/enterprise_culture.png");
    background-repeat: repeat;
    overflow: hidden;
}
div#corporate_culture>div{
    width: 1000px;
    height: 300px;
    margin: 0 auto;
    margin-top: 70px;
    /*background-color: red;*/
    /*float: left;*/
}
div#project{
    width: 100%;
    height: 720px;
}
div#corporate_culture>div>p{
    font-size: 20px;
    font-weight: 600;
    width: 380px;
}
div#corporate_culture>div>p:nth-child(2) {
    color: #cd0000;
}
div#corporate_culture>div>ul{
    width: 380px;
    height: 244px;
    margin-top: 35px;
}
div#corporate_culture>div>ul>li{
    width: 380px;
    height: 60px;
    border-bottom: 1px solid rgba(0,0,0,0.5);
}
div#corporate_culture>div>ul>li>p:first-child{
    font-weight: 700;
    margin: 10px 0 15px 0 ;
}
div#corporate_culture>div>img{
    float: right;
    display: block;
    width: 535px;
    height: 300px;
    margin-top: -300px;
}
div#project>p{
    text-align: center;
    font-size: 16px;
}
div#project>p:first-child{
    margin-top: 55px;
    /*font-size: ;*/
}
div#project>p:nth-child(2){
    margin-top: 10px;
    font-weight: 900;
}
div#project>p:nth-child(3){
    margin-top: 50px;
    font-size: 14px;
    margin-bottom: 30px;
}
div#project>ul{
    width: 1000px;
    height: 400px;
    margin: 0 auto;
    border: 1px solid blanchedalmond;
}
div#project>ul>li{
    width: 250px;
    height: 175px;
    float: left;
    background-color: #4B4B4B;
}
div#project>ul>li:nth-child(2n){

}
div#project>ul>li:nth-child(1){
    background-image: url("../img/e1.png");
}
div#project>ul>li:nth-child(3){
    background-image: url("../img/e2.png");
}
div#project>ul>li:nth-child(6){
    background-image: url("../img/e3.png");
}
div#project>ul>li:nth-child(8){
    background-image: url("../img/e4.png");
}
div#project>ul>p{
    width: 1000px;
    height: 50px;
    float: left;
    background-color: red;
    text-align: center;
    color: #eeeeee;
    font-size: 20px;
    line-height: 50px;
}
div#project>ul>li>span{
    color: white;
    display: inline-block;
    margin-left: 20px;
    margin-right: 20px;
}
div#project>ul>li>span:first-child{
    margin-top: 55px;
    margin-bottom: 20px;
    font-size: 17px;
}