:root {
    --primary-color: #3498db;
    --secondary-color: #2ecc71;
    --warning-color: #f39c12;
    --danger-color: #e74c3c;
    --dark-color: #34495e;
    --light-bg: #f8f9fa;
    --border-color: #e0e0e0;
}

body {
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
    background-color: #f5f7fa;
}

.site-header {
    background: linear-gradient(135deg, var(--primary-color), #2980b9);
    color: white;
    padding: 30px 0;
    margin-bottom: 30px;
}

.site-card {
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    margin: 20px 0;
    overflow: hidden;
}

.card-header {
    background-color: #dbedff;
    padding: 15px 20px;
    border-bottom: 1px solid #e1e1e1;
    font-weight: bold;
}

.card-body {
    padding: 20px;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.info-item {
    margin-bottom: 15px;
}

.info-label {
    color: #666;
    font-weight: 500;
    margin-bottom: 5px;
}

.info-value {
    font-weight: bold;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin: 20px 0;
}

.stat-card {
    background: white;
    border-radius: 8px;
    padding: 15px;
    text-align: center;
    box-shadow: 0 3px 10px rgba(0,0,0,0.05);
}

.stat-value {
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-color);
}

.stat-label {
    color: #666;
    font-size: 14px;
}

.badge-rank {
    background: linear-gradient(135deg, #f39c12, #e67e22);
    color: white;
    font-size: 16px;
    padding: 5px 10px;
    border-radius: 20px;
}

.table-custom th {
    background-color: var(--light-bg);
}

.btn-action {
    margin-right: 10px;
    margin-bottom: 10px;
}