* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
}

body {
    display: flex;
    flex-direction: column;
    height: 100vh;
    background-color: #f3f3f3;
    color: #333;
}

.title-bar {
    height: 48px;
    background-color: #0078d7;
    color: white;
    display: flex;
    align-items: center;
    padding: 0 16px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    z-index: 10;
}

.title-bar h1 {
    font-size: 18px;
    font-weight: 500;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 20px;
    margin-right: 16px;
    cursor: pointer;
}

.main-container {
    display: flex;
    flex: 1;
    overflow: hidden;
}

.sidebar {
    width: 220px;
    background-color: white;
    border-right: 1px solid #e1e1e1;
    transition: transform 0.3s ease;
    overflow-y: auto;
    z-index: 5;
}

.sidebar-header {
    padding: 16px;
    border-bottom: 1px solid #e1e1e1;
    font-weight: 600;
}

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

.sidebar-menu li {
    padding: 12px 16px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.sidebar-menu li:hover {
    background-color: #f5f5f5;
}

.sidebar-menu li.active {
    background-color: #e5f1fb;
    color: #0078d7;
    border-left: 3px solid #0078d7;
}

.content {
    flex: 1;
    padding: 24px;
    overflow-y: auto;
    background-color: white;
}

.content h2 {
    margin-bottom: 16px;
    font-weight: 500;
}

.card {
    background-color: #f9f9f9;
    border-radius: 4px;
    padding: 16px;
    margin-bottom: 16px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }
    
    .sidebar {
        position: absolute;
        height: calc(100vh - 48px);
        transform: translateX(-100%);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .content {
        padding: 16px;
    }
}