body {
    font-family: 微软雅黑, "Open Sans", sans-serif;
    font-size: 14px;
    color: #383431;
}
h1,h2,h3,h4,h5{
    font-weight: 500;
    line-height: 50px;
}
input, select, textarea {
    font-family: 微软雅黑, "Open Sans", sans-serif;
    font-size: 1em;
}
img, a {
    border: 0;
}
ul, li {
    list-style: none;
}
img {
    max-width: 100%;
}
.wrap {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    
}

.header{
    line-height: 60px;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 80px;
    background: #FFFFff;
}
.header .logo{
    padding: 2% 0;
    line-height: 28px;
    float: left;
}
.header .logo img{
    vertical-align: middle;
    
}
.header .logo span{
    display: inline-block;
    position: relative;
    padding-left: 20px;
    margin-left: 20px;
    vertical-align: middle;
    text-align: center;
}
.header .logo span p{
    font-weight: bold;
    padding-left: 20px;
    font-size: 14px;
    letter-spacing: 1px;
    text-align: center;
    line-height: 15px;
}
.header .logo span p:nth-of-type(1){
    font-size: 14px;
    letter-spacing: 3px;
    padding-top: 5px;
}
.header .nav{
    float: right;
    margin-top: 2%;
}
.header .nav ul li{
    float: left;
    font-size: 18px;
    color: #383431;
    background: url(../image/top_img1.jpg) right center no-repeat;
}
.header .nav ul li a{
    display: block;
    color: #383431;
    padding: 0 10px;
    font-size: 16px;
}
.header .nav ul li.on a, .header .nav ul li a:hover{
    color: #E67817;
}
.logo span i{
    float: left;
    vertical-align: middle;
    margin-top: 2%;
}
.logo span .log-font{
    display: inline-block;
    float: left;
    vertical-align: middle;
}


.mainer {
    width: 100%;
    height: auto;
    
    overflow: auto;
    margin: 100px 0;
}
.mainer .bd-top{
    height: 450px;
}
.mainer .bd-top img{
    width: 100%;
    height: 100%;
}
.bt-nav{
    margin-top: 8px;
    margin-bottom: 20px;
}
.bt-nav ul{
    display: flex;
    flex-direction: row;
    justify-content: space-between;
}
.bt-nav ul li{
    width: 33%;
    background: url(../image/nav-img.jpg)no-repeat center center;
}
.bt-nav ul li:hover{
    background: url(../image/a-igm1.jpg)no-repeat center center;
}
.bt-nav ul li a{
    display: flex;
    flex-direction: row;
    justify-content: space-around;
}
.bt-nav ul li a .bt-nav-left{
    color: #FFFFff;
    font-size: 100px;
}
.bt-nav ul li a .bd-nav-right{
    margin-top: 7%;
}
.bt-nav ul li a .bd-nav-right h2{
    font-size: 25px;
    font-weight: bold;
    color: #666666;
}
.bt-nav ul li a .bd-nav-right p{
    font-size: 18px;
    color: #666666;
}
.bt-nav ul li a:hover .bd-nav-right h2,.bt-nav ul li a:hover .bd-nav-right p{
    color: #ffffff;
}



.footer{
    width: 100%;
    height: auto;
    font-family: Arial,"Microsoft YaHei","微软雅黑","宋体";
    color: #FFFFff;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
}
.footer .foot-list1,.footer .foot-list2{
    background-color: #4D4948;
    border-bottom: #464646 solid 1px;
}
.footer .foot-list1 .wrap{
    display: flex;
    flex-direction: row;
    justify-content: space-between;
}
.footer .foot-list2{
    text-align: center;
}
.list-info1{
    display: flex;
    flex-direction: row;
    justify-content: space-between;
}
.foot-list1 .wrap{
    padding: 10px 0;
}
.list-info1 img{
    margin-right: 30px;
}
.list-info1 span{
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    margin-top: 3%;
}
.list-info1 span i{
    margin-right: 10px;
}
.list-info1 .log-font p:nth-of-type(1){
    font-size: 18px;
    letter-spacing: 2px;
}
.list-info2{
    vertical-align: middle;
}
.list-info2 span{
    display: inline-block;
    font-size: 14px;
    margin: 3% 0;
}
.list-info2 span:nth-of-type(1){
    margin-right: 10px;
}
.footer .foot-list2{
    background-color: #383431;
    line-height: 47px;
}


@media (max-width : 1024px) { 
    .header .logo{
        padding-left: 0;
    }
    .nav {
        position: fixed;
        left: -100%;
        width: 100%;
        height: 100%;
        background: rgba(222,222,220,0.8);
        margin-top: 8%;
    }
    .header .nav .menu{
        margin: 1% 10%;
    }
    .header .nav {
        margin-top: 0;
        z-index: 10;
    }
    
    .header .nav .menu li {
        padding: 1em 1.5em;
    }
    .nav-wrap {
        position: absolute;
        top: 50%;
        margin-top: -20px;
        width: 40px;
        height: 40px;
        background: url(../image/menu.png) no-repeat center center #E67817;
        background-size: auto 25px;
        right: 15px;
        z-index: 15;
    }
    .h-smenu .nav-wrap {
        background: url(../image/menu-1.png) no-repeat center center #E67817;
        background-size: auto 25px;
        position: absolute;
        top: 58%;
        z-index: 15;
    }
    .h-smenu .nav{
        left: 0;
    }
    .header .nav ul li{
        float: none;
    }
    .header .nav ul li a{
        font-size: 20px;
    }
}
@media (max-width : 750px) {
    .header .logo {
        display: flex;
        flex-direction: column;
        justify-content: space-around;
    }
    .header .logo a{
        margin-left: 40px;
    }
    .header .logo span{
        margin-left: 20px;
        margin-top: 3%;
    }
    .mainer {
        margin-top: 10px;
        margin-bottom: 50px;
    }
    .mainer .bd-top {
        height: 150px;
        margin-top: 100px;
    }
    .bt-nav ul li a {
        flex-direction: column;
    }
    .bt-nav ul li a .bt-nav-left {
        font-size: 60px;
        text-align: center;
    }
    .bt-nav ul li a .bd-nav-right h2 {
        font-size: 22px;
        text-align: center;
        line-height: 30px;
    }
    .bt-nav ul li a .bd-nav-right p {
        font-size: 14px;
        text-align: center;
    }
    .footer .foot-list2 {
        line-height: 25px;
    }
}