.w{
    width: 1200px;
    margin: 0 auto; 
}
.clearfix:after{
    content: "020"; 
    display: block; 
    height: 0; 
    clear: both; 
    visibility: hidden;  
    }

.head{
    height: 120px;
    background: url("../images/head-bg.jpg") no-repeat center;
    border-bottom: 1px solid #928f8f;
}
.head .w{
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 120px;    
}
/*nav*/
.nav{width:58%;margin:0 auto;display: flex;}
.nav li{position: relative;;flex: 1 auto;font-size:16px;width:140px;height:50px;line-height:50px;text-align:center;}
.nav li a{display:block;color:#ffffff;}
.nav .nav-item a:hover,.nav li.on a,.nav li.on .nav-sub a:hover {color:#ffa800;}
.nav li.on::after,
.nav li.active::after
{
    content:"";
    width: 100%;
    height: 2px;
    background: #fff;
    position: absolute;
    left: 50%;
    top: 82px;
    transform: translateX(-50%);
}
.nav-sub{
    display: none;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    z-index: 999;
    background: #282826;
}
.nav li:hover .nav-sub{
    display: block;
}
.nav li.on .nav-sub a{
    color: #fff;
}

.head-tel{
    font-size: 16px;
    color: #997a1c;
    padding-left: 60px;
    background: url("../images/head-tel.png") no-repeat left;
}
.head-tel p{
    font-size: 30px;
    color: #fff;
}



.box-tit
{
    text-align: center;
}

.box-tit h3{
    height: 58px;
}
.box-tit p{
    font-size: 20px;
    color: #282826;
    margin-top: 34px;
}

/* choice */
.choice
{
    padding-top: 68px;
}

.cho-box
{
    padding: 50px 0;
}

/* product */
.product{
    padding-top: 74px;
    padding-bottom: 55px;
    background: #e7e7e7;
}
.pro-nav ul{
    margin: 70px 0 50px; 
    display: flex;
    background: #282826;
}
.pro-nav ul li{
    flex: 1 auto;
}
.pro-nav li a{
    font-size:18px;
    color: #ffffff;
    display: block;
    height: 70px;
    line-height: 70px;
    text-align: center;
}
.pro-nav li a span{
    display: inline-block;
    width: 11px;
    height: 11px;
    margin-right: 10px;
    background: url("../images/pro-nav.png");
}
.pro-nav li:hover a,.pro-nav li.on a{
    background: url("../images/pro-navbg.jpg");
    color: #333333;
}
.pro-nav li:hover span{
    background: url(../images/pro-navh.png);
}

.pro-con .pro-bd
{
    height: 373px;
    overflow: hidden;
}

.pro-con-img{
    float: left;
}

.pro-con-list{
    background: #2a2829;
    display: flow-root;
    padding: 45px 0 0 40px;
    height: 373px;
}
.pro-con-list h3 a{
    font-size: 24px;
    color: #fff;
}
.pro-icon{
    width: 430px;
    display: flex;
    justify-content: space-between;
    margin: 30px 0 40px;
}
.pro-icon li{
    width: 60px;
    height: 60px;
    border: 1px solid #fff;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.pro-icon p{
    font-size: 16px;
    color: #fff;
}
.pro-icon li:hover{
    background: #997a1c;
    color: #666;
}
.pro-icon li:hover p{
    color: #666;
}

.pro-con-text h3{
    color: #fff;
    font-size: 19px;
    margin-bottom: 30px;
}
.pro-con-text .con
{
    color: #fff;
    font-size: 12px;
    line-height: 28px;
    height: 80px;
    overflow:hidden;
}
.pro-con-text .con p{
    color: #fff;
    font-size: 12px;
}
.pro-btom{
    display: flex;
    justify-content: space-between;
    margin-top: 33px;
}
.pro-btom li{
    width: 390px;
    height: 332px;
}
.pro-btom li img{
    display: block;
    width: 100%;
    height: 100%;
}

.ban{
    height: 264px;
    background: url("../images/ban-bg.jpg") no-repeat center;
}
.ban a{
    display: block;
    width: 100%;
    height: 100%;
}

/* adv */
.adv{
    position: relative;
    padding-bottom: 78px;
}
.adv-bg {
    position: absolute;
    width: 100%;
    height: 100%;
    background: url("../images/adv-bg.jpg") no-repeat center;
    background-size: cover;
    background-attachment: fixed;
}
.adv-bg::after{
    content: "";
    width: 100%;
    height: 100%;
    position: absolute;
    background: rgba(51,51,51,0.5);
}
.adv .box-tit p{
    color: #fff;
}
.adv .w
{   
    position: relative;
    padding-top: 97px;
}
.adv-box{
    margin-top: 60px;
}
.adv-l{
    float: left;
    margin-right: 30px;
    padding-top: 90px;
}

.adv-l li:nth-child(n+2)
{
    margin-top: 20px;
}
.adv-l .num{
    width: 60px;
    height: 60px;
    text-align: center;
    line-height: 60px;
    font-size: 40px;
    color: #ffffff;
    font-weight: bold;
    background: #997a1c;
    float: left;
}

.adv-l .con{
    display: flow-root;
    width: 640px;
    height: 198px;
    background: #fff;
    padding: 30px 0 0 43px;
}
.adv-l .con h3{
    font-size: 26px;
    color: #333333;
    font-weight: bold;
    margin-bottom: 28px;
}
.adv-l .con p{
    font-size: 16px;
    color: #333333;
    line-height: 40px;
    padding-left: 16px;
    background: url("../images/adv-con.png") no-repeat left center;
}
.adv-l .con p span,
.adv-l .con h3 span{
    color: #997a1c;
}
.adv-r
{
    display: flow-root;
}

/* service */
.service{
    padding: 73px 0 45px;
}
.ser-box{
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}
.ser-box {
    margin-top:55px;
}
.ser-box li
{
    border: 1px solid #d2d2d2;
    box-sizing: border-box;
    width: 400px;
    height: 300px;
}
.ser-box li:nth-child(2) span{
    margin-top: 20px;
}
.ser-box li:nth-child(n+4) span{
    margin-bottom: 20px;
}
.ser-text{
    padding: 75px 25px 0;
    box-sizing: border-box;
}
.ser-text p{
    color: #666666;
    line-height: 24px;
}
.ser-text span{
    display: block;
    width: 50px;
    height: 3px;
    background: #997a1c;
}
.ser-text h3{
    color: #333333;
   font-size: 26px;
   margin: 20px 0;
}
.ser-text div{
    width: 80px;
    height: 30px;
    background: #997a1c;
    line-height: 30px;
    text-align: center;
    font-size: 20px;
    color: #fff;
}

.ban2{
    height: 496px;
    background: url("../images/ban2-bg.jpg") no-repeat center;
}
.case{
    padding: 58px 0;
    background: #f6f6f6;
}
.case-box{
    margin-top: 58px;
}
.case-l{
    float: left;
    margin-right: 63px;
}
.case-l .box-img{
    width: 495px;
    height: 370px;
}
.case-l .box-img img{
    width: 100%;
    height: 100%;
    display: block;
}
.case-l p{
 font-size: 36px;
 color: #333333;   
 line-height: 36px;
 padding: 35px 0 0;
}
.case-l p span{
    display: block;
    width: 50px;
    height: 5px;
    background: #997a1c;
    margin-top: 23px;
}

.case-r{
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}
.case-r li{
    width: 302px;
}
.case-r li:nth-child(n+3){
    margin-top: 32px;
}
.case-r li .box-img,
.case-r li .box-img img
{
    display: block;
    width: 100%;
    height: 227px;
}
.case-r li p{
    text-indent: 17px;
    font-size: 20px;
    color: #fff;
    height: 46px;
    line-height: 46px;
    background: url("../images/case-r.jpg") no-repeat center;
}

/* about */
.about
{
    padding: 50px 0 85px;
}
.ab-box{
    margin-top: 55px;
}

.ab-text{
    font-size: 20px;
    color: #333333;
    line-height: 36px;
    text-align: center;
    height: 176px;
    overflow: hidden;
    margin: 50px 0 30px;
}

.ab-more{
    display: block;
    width: 198px;
    height: 48px;
    text-align: center;
    line-height: 48px;
    margin: 0 auto;
    border: 1px solid #997a1c;
    font-size: 20px;
    color: #997a1c;
}

.news-nav{
    text-align: center;
    padding: 50px 0; 
}
.news-nav a{
    display: inline-block;
    width: 148px;
    height: 48px;
    line-height: 48px;
    text-align: center;
    border: 1px solid #997a1c;
    font-size: 20px;
    color: #997a1c;
}
.news-nav a:nth-child(n+2)
{
    margin-left: 30px;
}
.ab-l{
    float: left;
    width: 620px;
    height: 462px;
    position: relative;
    margin-right: 62px;
}
.ab-l img{
    display: block;
    width: 100%;
    height: 100%;
}
.ab-l .text{
    position: absolute;
    width: 100%;
    bottom: 0;
    background: rgba(141,117,46,0.5);
    padding: 18px 20px;
    box-sizing: border-box;
}
.ab-l .text h3{
    font-size: 20px;
    color: #fff;
}
.ab-l .text h3 i{
    float: right;
    font-style: normal;
}
.ab-l .text p,
.ab-r p{
    font-size: 16px;
    color: #fff;
    line-height: 20px;
    margin-top: 10px;
    height: 40px;
    overflow: hidden;
}

.ab-r{
    display: flow-root;
}
.ab-r li{
    padding: 16px 0 3px;
    border-bottom: 1px solid #dddddd;
}
.ab-r h3{
    font-size: 18px;
    color: #333;
    font-weight: bold;
    line-height: 18px;
}
.ab-r p{
    height: 45px;
    color: #333;
    line-height: 23px;
    margin: 2px 0;
}
.ab-r i{
    font-style: normal;
    font-size: 12px;
    color: #333;
}

/* footer */
.footer{
    margin-top: 80px;
    background: #333333;
    padding-top: 44px;
}
.footer .w{
    display: flex;
    justify-content: space-between;
}
.foot-con h3{
    font-size: 22px;
    color: #fff;
}
.foot-nav{
    padding-top: 33px;
    width: 248px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}
.foot-nav a{
    width: 50%;
    font-size: 18px;
    color: #e3e3e3;
    height: 50px;
}
.foot-con:nth-child(2) h3{
    padding-left: 120px;
}
.foot-tel{
    padding: 0 120px;
    padding-top: 45px;
    border-left: 1px solid #fff;
    border-right: 1px solid #fff;
}
.foot-tel p{
    font-size: 20px;
    color: #ffffff;
    line-height: 71px;
}
.foot-tel p img
{
    vertical-align: middle;
    margin-right: 16px;
}

.foot-code{
    padding-top: 30px;
    max-width: 150px;
}
.foot-code img{
    display:block;
    width:100%;
}
.foot-botm{
    text-align: center;
     color: #fff;
}
.foot-botm .w{
    padding: 35px 0;
    color: #fff;
    display:flex;
    justify-content: center;
    align-items: center;
}
.foot-botm a,
.foot-botm p{
    font-size: 16px;
    color: #fff;
    padding: 0 22px;
}