:root {
            --primary-color: #2c7da0;
            --secondary-color: #a9d6e5;
            --accent-color: #01497c;
            --light-gray: #f8f9fa;
            --border-color: #eaeaea;
            --text-color: #333;
            --text-muted: #6c757d;
            --success-color: #28a745;
            --warning-color: #ffc107;
            --danger-color: #dc3545;
        }
 
        
        .result-container {
            background-color: var(--light-gray);
            border-radius: 6px;
            padding: 1.5rem;
            margin-top: 1.5rem;
            border: 1px solid var(--border-color);
        }
        
        .result-title {
            font-weight: 600;
            margin-bottom: 0.75rem;
            color: var(--primary-color);
        }
        
        .summary-card {
            background: white;
            border-radius: 8px;
            padding: 1.5rem;
            border: 1px solid var(--border-color);
            margin-bottom: 1.5rem;
            box-shadow: 0 2px 4px rgba(0,0,0,0.05);
        }
        
        .summary-value {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 0.5rem;
        }
        
        .chart-container {
            position: relative;
            height: 400px;
            width: 100%;
            margin: 2rem 0;
        }
 
        .parameter-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
        }
        
        .parameter-table th, .parameter-table td {
            padding: 0.75rem;
            text-align: center;
            border: 1px solid var(--border-color);
        }
        
        .parameter-table th {
            background-color: var(--light-gray);
            font-weight: 600;
        }
        
        .info-box {
            background-color: rgba(44, 125, 160, 0.05);
            border-left: 3px solid var(--primary-color);
            padding: 1rem;
            border-radius: 0 4px 4px 0;
            margin: 1.5rem 0;
        }
        
        .system-type-selector {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-bottom: 1.5rem;
        }
        
        .system-type-btn {
            padding: 0.75rem 1.5rem;
            border: 1px solid var(--border-color);
            border-radius: 4px;
            background-color: white;
            cursor: pointer;
            transition: all 0.3s;
            text-align: center;
            flex: 1;
            min-width: 120px;
        }
        
        .system-type-btn.active {
            background-color: var(--primary-color);
            color: white;
            border-color: var(--primary-color);
        }
        
        .current-indicator {
            display: inline-block;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            margin-right: 0.5rem;
        }
        
        .current-low { background-color: #28a745; }
        .current-normal { background-color: #ffc107; }
        .current-high { background-color: #fd7e14; }
        .current-critical { background-color: #dc3545; }
        
        .footer {
            background-color: var(--light-gray);
            margin-top: 3rem;
            border-top: 1px solid var(--border-color);
        }
        
        .action-group {
            display: flex;
            gap: 0.5rem;
        }
    
        .generating-indicator {
            display: none;
            padding: 1rem;
            text-align: center;
            background-color: rgba(44, 125, 160, 0.1);
            border-radius: 6px;
            margin: 1rem 0;
        }
        
        .seo-content {
            margin: 2rem 0;
            line-height: 1.8;
        }
        
        .seo-content h2, .seo-content h3 {
            color: var(--primary-color);
            margin-top: 1.5rem;
            margin-bottom: 1rem;
        }
        
        .seo-content p {
            margin-bottom: 1rem;
        }
        
        .seo-content ul, .seo-content ol {
            margin-bottom: 1rem;
            padding-left: 1.5rem;
        }
        
        .seo-content li {
            margin-bottom: 0.5rem;
        }
        
        .input-group-text {
            background-color: var(--light-gray);
            border: 1px solid #ddd;
        }
        
        .calculation-method-selector {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-bottom: 1.5rem;
        }
        
        .calculation-method-btn {
            padding: 0.75rem 1.5rem;
            border: 1px solid var(--border-color);
            border-radius: 4px;
            background-color: white;
            cursor: pointer;
            transition: all 0.3s;
            text-align: center;
            flex: 1;
            min-width: 150px;
        }
        
        .calculation-method-btn.active {
            background-color: var(--primary-color);
            color: white;
            border-color: var(--primary-color);
        }
        
        .error-message {
            color: var(--danger-color);
            font-size: 0.875rem;
            margin-top: 0.25rem;
            display: none;
        }
        
        @media (max-width: 768px) {
 
            .system-type-btn {
                min-width: 100px;
                padding: 0.5rem 1rem;
            }
            
            .calculation-method-btn {
                min-width: 130px;
                padding: 0.5rem 1rem;
            }
        }