.sd_head .top{
    display: block;
    margin: 41px auto 0;
}
.ss_box{
    width: 1200px;
    margin: 4px auto 0;
    overflow: hidden;
    height: 46px;
}
.ss_box .id_ss{
    background: url(/css/../images/ss.png);
    width: 297px;
    height: 38px;
    float: right;
}
.ss_box .text{
    float: left;
    border: 0;
    line-height: 38px;
    width: 238px;
    margin-left: 10px;
    height: 38px;
    outline: none;
    background: none;
}
.ss_box .btn {
    float: right;
    margin-right: 6px;
    height: 38px;
    width: 37px;
    background: url(/css/../images/ico.png) no-repeat -43px -24px;
    border: 0;
}
.sd_nav_box{
    height: 76px;
    width: 1200px;
    margin: auto;
    overflow: hidden;
    display: block;
}
.sd_nav{
    overflow: hidden;
    height: 76px;
    background: #0683e8;
}
.sd_nav ul{
    width: 110%;
}
.sd_nav ul li a{
    height: 76px;
    display: block;
}
.sd_nav ul li a:hover{
    background: #016abe;
}
.sd_nav ul li {
    float: left;
    width: 10.1%;
}
.sd_nav ul li a i{
    background: url("/css/../images/ico13.png") no-repeat -44px 0;
    width: 38px;
    height: 41px;
    display: block;
    margin: auto;
}
.sd_nav ul li a span{
    display: block;
    font-size: 16px;
    color: #ffffff;
    text-align: center;
    line-height: 34px;
}
.sd_nav ul li a .a {
    background: url("/css/../images/ico13.png") no-repeat -177px 0;
}
.sd_nav ul li a .b {
    background: url("/css/../images/ico13.png") no-repeat -310px 0;
}
.sd_nav ul li a .c {
    background: url("/css/../images/ico13.png") no-repeat -443px 0;
}
.sd_nav ul li a .d {
    background: url("/css/../images/ico13.png") no-repeat -578px 0;
}
.sd_nav ul li a .e {
    background: url("/css/../images/ico13.png") no-repeat -710px 0;
}
.sd_nav ul li a .f {
    background: url("/css/../images/ico13.png") no-repeat -844px 0;
}
.sd_nav ul li a .g {
    background: url("/css/../images/ico13.png") no-repeat -978px 0;
}
.sd_nav ul li a .h{
    background: url("/css/../images/ico13.png") no-repeat -1111px 0;
}