.page-hero {
            padding: 8rem 0 4rem;
            background: linear-gradient(135deg, rgba(0, 0, 0, 0.85) 0%, rgba(66, 139, 202, 0.9) 100%), 
                        url('../img/mantenimientopc.jpg') center/cover;
            color: white;
            text-align: center;
        }
        
        .page-hero h1 {
            font-size: clamp(2rem, 5vw, 3.5rem);
            font-weight: 900;
            margin-bottom: 1rem;
        }
        
        .content-section {
            padding: 4rem 0;
            background: white;
        }
        
        .content-section.alt {
            background: #f7fafc;
        }
        
        .content-section h2 {
            font-size: 2rem;
            color: #428bca;
            margin-bottom: 2rem;
            text-align: center;
        }
        
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
        }
        
        .service-card {
            background: white;
            padding: 2rem;
            border-radius: 8px;
            border: 1px solid #e5e7eb;
            transition: all 0.3s ease;
        }
        
        .service-card:hover {
            border-color: #428bca;
            box-shadow: 0 8px 24px rgba(66, 139, 202, 0.15);
            transform: translateY(-4px);
        }
        
        .service-icon {
            width: 60px;
            height: 60px;
            background: #428bca;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
        }
        
        .service-icon i {
            font-size: 1.8rem;
            color: white;
        }
        
        .service-card h3 {
            font-size: 1.3rem;
            color: #1a1a2e;
            margin-bottom: 1rem;
        }
        
        .service-card p {
            color: #64748b;
            line-height: 1.6;
        }
        
        .benefits-list {
            list-style: none;
            padding: 0;
            max-width: 900px;
            margin: 0 auto;
        }
        
        .benefits-list li {
            padding: 1rem 0;
            padding-left: 2.5rem;
            position: relative;
            font-size: 1.1rem;
            line-height: 1.6;
        }
        
        .benefits-list li:before {
            content: "✓";
            position: absolute;
            left: 0;
            color: #428bca;
            font-size: 1.5rem;
            font-weight: bold;
        }
        
        .cta-section {
            background: linear-gradient(135deg, #428bca 0%, #5ca3e0 100%);
            padding: 4rem 0;
            color: white;
            text-align: center;
        }
        
        .cta-section h2 {
            color: white;
            font-size: 2.5rem;
            margin-bottom: 1rem;
        }
        
        .btn-cta {
            padding: 1.2rem 2.5rem;
            font-size: 1.1rem;
            font-weight: 700;
            border-radius: 4px;
            background: white;
            color: #428bca;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            transition: all 0.3s ease;
        }
        
        .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}