/* 头部 */
.header {
    width: 100%;
    height: 100px;
    margin: 0 auto;
}

.website-logo {
    float: left;
}

.website-logo img {
    display: block;
    width: 364px;
    height: 94px;
    margin: 0 auto;
}

.website-info {
    float: right;
}

.website-setting {
    text-align: right;
    margin: 10px 0;
    overflow: hidden;
}

.website-setting a {
    padding-right: 10px;
    cursor: pointer;
}

.website-info img {
    display: block;
    width: 229px;
    height: 39px;
}

/* nav导航 */
.nav {
    position: relative;
    z-index: 100;
    height: 46px;
    background-color: #333333;
}

.nav li {
    position: relative;
    float: left;
    width: 99px;
    height: 46px;
    border-right: solid 1px #515150;
}

.nav li:last-child {
    border-right: none;
}

.nav-first a {
    display: block;
    color: #fff;
    font-size: 16px;
    line-height: 46px;
    text-align: center;
}

/* 二级导航 */
.nav-second {
    display: none;
    position: absolute;
    top: 46px;
    left: 0px;
    width: max-content;
    overflow: hidden;
    border-radius: 20px;
    background-color: #ffffff;
}

.nav-second a {
    float: left;
    display: inline;
    color: #333;
    font-size: 14px;
    line-height: 32px;
    padding: 0 18px;
}

.nav-menu:hover {
    background: url(../images/uparrow.jpg) center bottom no-repeat;
}

.nav-menu:hover .nav-second {
    display: block;
}