/* 侧边栏样式 */
:root {
    --primary-color: #3498db;
    --secondary-color: #2c3e50;
    --success-color: #2ecc71;
    --danger-color: #e74c3c;
    --warning-color: #f39c12;
    --info-color: #1abc9c;
}

.sidebar {
    min-height: 100vh;
    background-color: var(--secondary-color);
    color: white;
    position: fixed;
    width: 250px;
}

.content {
    margin-left: 250px;
    padding: 20px;
}

.sidebar-header {
    padding: 20px;
    text-align: center;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-menu {
    padding: 0;
    list-style: none;
}

.sidebar-menu li {
    padding: 15px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    transition: all 0.3s;
}

.sidebar-menu li:hover {
    background-color: rgba(255,255,255,0.1);
}

.sidebar-menu li a {
    color: white;
    text-decoration: none;
    display: flex;
    align-items: center;
}

.sidebar-menu li i {
    margin-right: 10px;
    width: 20px;
    text-align: center;
}

.sidebar-menu li.active {
    background-color: rgba(255,255,255,0.2);
}