.secrch-box{position:relative;float:right;top: 30px;}
.secrch-input{width:200px;border-radius:40px;height:30px;font-size:14px;opacity:0.8;display:inline-block;}
.search-btn{width:30px;height:30px;border-radius:50%;background:#fff;opacity:0.8;display:inline-block;margin-left:10px;    position: relative;top: -6px;}
header {
    width: 100%;
    height: 90px;
    position: relative;
    z-index: 99;
    background: #1877C4;
}

.logo_box {
    float: left;
    margin-top: 15px;
}
.nav {
    float: right;
}
.footer {
    /*position: absolute;*/
    width: 100%;
    /*bottom: 0;*/
}
footer {
    background: #1877C4;
    width: 100%;
    padding-top: 10px;
    height: 30px;
    padding-bottom: 10px;
    color: #fff;
    line-height: 30px;
}
footer p{text-align:center;font-size:18px;}
.quanwei{margin: auto;}


.nav li {
    float: left;
    line-height: 89px;
    color: white;
    font-size: 18px;
    margin: 0px 20px;
    transition: All 0.4s ease-in-out;
}
    .nav li a{
        display:block;
        color:#fff;
    }
  
    

.this_nav {
    background: linear-gradient(#268ece, #126aa2);
    transition: All 0.4s ease-in-out;
}