/* 头部 */
header {
    background-color: #ab947d;
    position: relative;
    height: 50px;
}

header .header-left {
    margin-left: 50px;
    margin-top: 8px;
}

header .header-right {
    margin-right: 50px;
    position: absolute;
    right: 0;
    top: 0;
    height: 50px;
    width: 50%;
    display: flex;
    justify-content: space-between;
}

header .header-right li {
    height: 50px;
    position: relative;
}

.header-right span {
    display: inline-block;
    color: #fff;
    height: 98%;
    line-height: 50px;
}

.transition {
    width: 140px;
    height: 0;
    position: absolute;
    text-align: center;
    left: -40px;
    top: 50px;
    background-color: #00000080;
    overflow: hidden;
    transition: all 0.5s;
}

.transition a {
    padding: 10px 0;
    display: block;
    font-size: 14px;
    color: #b8b8bf;
    transition: all 1s;
}

.transition a:hover {
    color: #fff;
}

header .header-right li:hover .transition {
    height: auto;
    transition: all 1s;
}

.lever {
    border-bottom: 2px ridge #ffffff;
}

/*  */
.nav-title {
    margin-top: 10px;
    margin-bottom: 10px;
}

.dashed {
    width: 100%;
    border-bottom: 1px ridge rgb(218, 213, 213);
}