:root {
            --primary-color: #0066cc;
            --secondary-color: #00a86b;
            --dark-bg: #1a1a2e;
            --light-bg: #f8f9fa;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            color: #333;
        }
        
        .hero-section {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
            color: white;
            padding: 80px 0;
        }
        
        .hero-section h1 {
            font-size: 3rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }
        
        .hero-section .lead {
            font-size: 1.25rem;
            line-height: 1.8;
            opacity: 0.95;
        }
        
        .section-title {
            font-size: 2rem;
            font-weight: 600;
            color: var(--primary-color);
            margin-bottom: 2rem;
            position: relative;
            padding-bottom: 15px;
        }
        
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 4px;
            background: var(--secondary-color);
        }
        
        .spec-card {
            background: white;
            border-radius: 10px;
            padding: 25px;
            margin-bottom: 20px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.08);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        
        .spec-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 5px 20px rgba(0,0,0,0.15);
        }
        
        .spec-label {
            font-weight: 600;
            color: var(--primary-color);
            font-size: 0.95rem;
            margin-bottom: 5px;
        }
        
        .spec-value {
            font-size: 1.1rem;
            color: #333;
        }
        
        .applications-section,
        .advantages-section {
            background: var(--light-bg);
            padding: 60px 0;
        }
        
        .specifications-section {
            padding: 60px 0;
        }
        
        .list-item {
            background: white;
            padding: 20px;
            margin-bottom: 15px;
            border-radius: 8px;
            border-left: 4px solid var(--secondary-color);
            box-shadow: 0 2px 8px rgba(0,0,0,0.06);
            transition: all 0.3s ease;
        }
        
        .list-item:hover {
            border-left-width: 6px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        
        .list-item-text {
            margin: 0;
            font-size: 1.05rem;
            color: #333;
        }
        
        @media (max-width: 768px) {
            .hero-section h1 {
                font-size: 2rem;
            }
            
            .hero-section .lead {
                font-size: 1rem;
            }
            
            .section-title {
                font-size: 1.5rem;
            }
            
            .hero-section {
                padding: 50px 0;
            }
            
            .specifications-section,
            .applications-section,
            .advantages-section {
                padding: 40px 0;
            }
        }