* {
    padding: 0;
    margin: 0;
    outline: none;
    font-family: Roboto, Helvetica, Tahoma, Arial, "Microsoft YaHei"; 
}

body {
   max-width: 1920px;
}

a {
    text-decoration: none;
}

.fr {
    float: right;
}

.fl {
    float: left;
}

.w {
    width: 1200px;
    margin: 0 auto;
}

li {
    list-style: none;
    float: left;
}
img{max-width: 100%;}
.clear{clear: both}
.fc_999{color: #999;}

.header-top {
    height: 72px;
    position: relative;
}
/*.header {
    height: 72px;
    position: relative;
}*/

.header span {
    /*position: absolute;
    left: 1520px;
    top: 30px;*/
    vertical-align: middle;
}
.header .header_right{height: 72px;line-height: 72px;}
.searchbox{display: inline-block;vertical-align: middle;margin-right: 28px;}
.searchbox .sea_t{height: 28px;padding: 0 5px;}
.userbox{display: inline-block;vertical-align: middle;}
.clear{clear: both}
.search {
    position: absolute;
    left: 1270px;
    top: 30px;
}
.sea_b{
    width: 20px;
    height: 20px;
    border: none;
    vertical-align: middle;
    cursor: pointer;
    margin-top: -2px;
}

.user {
    /*position: absolute;
    left: 1500px;
    top: 30px;*/
    width: 18px;height: 19px;
    margin-right: 5px;vertical-align: middle;
}

.logo {
    /*margin-left: 357px;*/
    margin-top: 16px;
}

.navigation {
    /*height: 48px;*/
    background: #132B60;

}

.navigation ul {
    /*height: 48px;*/
    /*margin-left: 357px;*/
}

.navigation li {
    float: left;
    /*height: 13px;*/
    font-size: 16px;
    font-family: Arial;
    font-weight: 400;
    color: #F3F4F9;
    line-height: 22px;
    border-left: 1px solid #fff;
    margin: 13px 0px;
    padding:0 46px;
}
.navigation li:first-child{
    border:none;
    padding-left: 0;
}

.navigation li a {
    color: #f3f3f9;
}

.navigation li:nth-child(1) {
    margin-left: 0;
}


.footer{background: #e6e8f1;padding-top: 10px;margin-top: 60px;}
.link_img {
    margin-top: 50px;
}

.links {
    margin-top: 20px;
    height: 50px;
}

.links li:nth-child(1) {

    height: 48px;
    font-size: 24px;
    font-family: Arial;
    font-weight: 400;
    color: #333333;

    margin-left: 429px;
    margin-top: 15px;

}

.links a {
    margin-left: 10px;
}



.link dl {
    float: left;
}

.clearfix::after {
    /*只需要给浮动元素的父容器添加上这个类就可以了: clear_float*/
    display: block;
    /*把::after设置成块级元素*/
    content: "";
    /*想让伪类起作用, 必须添加这个属性*/
    clear: both;
}

i {
    font-size: normal;
}

li {
    cursor: default;
}

div {
    box-sizing: border-box;
}

.link_nav {
    /*width: 1200px;
    height: 50px;
    margin-left: 358px;*/
    margin-top: 20px;
    margin-bottom: 24px;
    line-height: 50px;
padding:0 30px;
    background: #EFF1F7;min-height: 50px;
}

.link_l {
    font-size: 24px;
    font-family: Arial;
    font-weight: bold;
    color: #132B60;
    /*margin-left: 32px;*/
}

.link_r a {
    font-size: 16px;
    font-family: Arial;
    font-weight: 400;
    color: #999999;
}

.link_r span {
    color: #999999;
}

.link_r a:hover,.link_r a.on{
    color: #132B60;
}


.index_footer {/*
    display: flex;
    justify-content: space-between;
    width: 1200px;
    height: 300px;
    margin-left: 357px;
    margin-top: 50px;*/
    margin-top: 37px;
    margin-bottom: 43px;

}
.index_footer>.w{
    display: flex;
    justify-content: space-between;
    width: 1200px;
    /*height: 300px;*/
}
.about {
    width: 377px;
    height: 240px;
}

.about dt:nth-child(1),.product dt:nth-child(1),.contact dt:nth-child(1) {
    font-size: 24px;
    font-family: Arial;
    font-weight: 400;
    color: #333333;
}

.about dt:nth-child(3) {
    font-size: 16px;
    font-family: Arial;
    font-weight: bold;
    color: #333333;
}
.about dt{
    margin-bottom: 20px;
}
.about dt:nth-child(4){
font-size: 14px;
font-family: Arial;
font-weight: 400;
color: #555555;
}
.product {
    width: 200px;
    height: 240px;
}
.product dt{
font-size: 14px;
font-family: Arial;
font-weight: 400;
color: #333333;
margin-bottom: 20px;
}
.contact {
    width: 270px;
    height: 240px;

}
.contact dt{
font-size: 14px;
font-family: Arial;
font-weight: 400;
color: #333333;
margin-bottom: 20px;
}
.copyright{
    /*width: 428px;*/
    text-align: center;
/*height: 16px;*/
font-size: 16px;
font-family: Arial;
font-weight: bold;
color: #656565;
/*margin-left: 745px;*/
border-top: 1px solid #ddd;
padding:30px 0 22px 0;
}