.layui-side {
    position: fixed;
    top: 60px;
    bottom: 0;
    z-index: 999;
    width: 200px;
    overflow-x: hidden;
    overflow-y: auto;
    background: linear-gradient(180deg, #2c3e50 0%, #3498db 100%);
    box-shadow: 2px 0 10px rgba(0,0,0,0.1);
    padding: 0;
    margin: 0;
}

.layui-nav-item {
    margin: 0;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.layui-nav-item a {
    display: block;
    padding: 15px 20px;
    color: #fff;
    font-size: 16px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.layui-nav-item a:hover,
.layui-nav-item.layui-this > a {
    background-color: rgba(255, 255, 255, 0.15);
    color: #fff;
    border-radius: 4px;
}

.layui-nav-child {
    padding: 0;
}

.layui-nav-child dd {
    margin: 2px 0;
}

.layui-nav-child dd a {
    padding: 12px 30px !important;
    font-size: 14px;
}

.layui-nav-child dd.layui-this a,
.layui-nav-child dd a:hover {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 4px;
}

.layui-icon {
    margin-right: 8px;
}