@charset "UTF-8";
/* header */
.header {
    position: relative;
    height: 50px;
    background: #fff;
    box-shadow: 0 0 5px #ccc;
}

.header .logo {
    float: left;
    height: 35px;
    padding-left: 10px;
    margin-top: 7.5px;
}

.header .yk{
    float: right;
    height: 35px;
    padding-left: 12.5px;
    margin-top: 7.5px;
    position: relative;
    z-index: 1000;
    margin-right: 55px;
}
.header .logo img {
    display: block;
    height: 100%;
}

.header .search {
    position: absolute;
    top: 0;
    right: 35px;
    z-index: 1000;
    display: block;
    width: 50px;
    height: 50px;
    text-indent: -9999em;
    background: url(../images/icon-search.png) no-repeat center center;
    background-size: 40%;
}

.header .search:hover {
    background-color: #3B579D;
}

.header .search span {
    display: none;
}

.header .user-icon {
    position: absolute;
    top: 0;
    right: 70px;
    z-index: 1000;
    display: block;
    width: 50px;
    height: 50px;
    text-indent: -9999em;
    background: url(../images/icon-user.png) no-repeat center center;
    background-size: 40%;
}

.header .user-icon span {
    display: none;
}

.header .user-icon:hover {
    background-color: #3B579D;
}

.header .back {
    position: absolute;
    top: 0;
    left: 0;
    display: block;
    width: 50px;
    height: 50px;
    text-indent: -9999em;
    background: url(../images/icon-back.png) no-repeat center center;
    background-size: 12px 20px;
}