body {
    background-color: #f8f9fa;
    font-family: 'Microsoft YaHei', sans-serif;
}

/* 侧边栏样式 */
.sidebar {
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.sidebar .nav-link {
    color: white;
    border-radius: 8px;
    margin: 2px 0;
    transition: all 0.3s;
}

.sidebar .nav-link:hover {
    background-color: rgba(255,255,255,0.1);
    transform: translateX(5px);
}

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

/* 卡片样式 */
.card {
    border: none;
    border-radius: 15px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
    margin-bottom: 20px;
}

.card:hover {
    transform: translateY(-5px);
}

.metric-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

/* 顶部导航栏样式 */
.navbar-custom {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.navbar-custom .navbar-brand,
.navbar-custom .nav-link,
.navbar-custom .btn-outline-light {
    color: white;
}

/* 按钮样式 */
.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #5a6ecc 0%, #6a4292 100%);
}

/* 徽章样式 */
.badge-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}