/* Стили только для Features секции */
        .features-section {
            width: 100%;
            padding: 100px 0;
            background: linear-gradient(135deg, 
                #f8f9fa 0%, 
                #f1f5f9 50%, 
                #e9f2fa 100%);
            position: relative;
            overflow: hidden;
        }

        .features-section::before {
            content: '';
            position: absolute;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(39, 174, 96, 0.05) 0%, transparent 70%);
            top: -250px;
            right: -250px;
            z-index: 1;
        }

        .features-section::after {
            content: '';
            position: absolute;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(41, 128, 185, 0.05) 0%, transparent 70%);
            bottom: -200px;
            left: -200px;
            z-index: 1;
        }

        .features-section .container {
            max-width: 1200px;
            width: 100%;
            margin: 0 auto;
            padding: 0 20px;
            position: relative;
            z-index: 2;
        }

        .features-section .section-title {
            text-align: center;
            margin-bottom: 70px;
        }

        .features-section .section-title h2 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #1a2a3a;
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }

        .features-section .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: linear-gradient(90deg, #27ae60, #2ecc71);
            border-radius: 2px;
        }

        .features-section .section-title p {
            font-size: 1.3rem;
            color: #5a6c7d;
            max-width: 600px;
            margin: 25px auto 0;
            line-height: 1.6;
        }

        .features-section .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 35px;
        }

        .features-section .feature-card {
            background: white;
            border-radius: 20px;
            padding: 40px 30px;
            transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.1);
            position: relative;
            overflow: hidden;
            box-shadow: 
                0 5px 20px rgba(0, 0, 0, 0.05),
                0 1px 5px rgba(0, 0, 0, 0.03);
            border: 1px solid rgba(0, 0, 0, 0.05);
            z-index: 1;
        }

        .features-section .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 5px;
            background: linear-gradient(90deg, #27ae60, #2ecc71);
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .features-section .feature-card:hover {
            transform: translateY(-15px);
            box-shadow: 
                0 20px 40px rgba(0, 0, 0, 0.1),
                0 8px 16px rgba(39, 174, 96, 0.1);
            border-color: rgba(39, 174, 96, 0.2);
        }

        .features-section .feature-card:hover::before {
            opacity: 1;
        }

        .features-section .feature-icon {
            width: 80px;
            height: 80px;
            border-radius: 20px;
            background: linear-gradient(135deg, rgba(39, 174, 96, 0.1), rgba(52, 152, 219, 0.1));
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 25px;
            transition: all 0.4s ease;
        }

        .features-section .feature-card:hover .feature-icon {
            transform: scale(1.1) rotate(5deg);
            background: linear-gradient(135deg, rgba(39, 174, 96, 0.2), rgba(52, 152, 219, 0.2));
            box-shadow: 0 10px 20px rgba(39, 174, 96, 0.15);
        }

        .features-section .feature-icon i {
            font-size: 2.5rem;
            background: linear-gradient(135deg, #27ae60, #2ecc71);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            transition: all 0.4s ease;
        }

        .features-section .feature-card:hover .feature-icon i {
            transform: scale(1.1);
        }

        .features-section .feature-card h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: #1a2a3a;
            margin-bottom: 15px;
            transition: color 0.3s ease;
        }

        .features-section .feature-card:hover h3 {
            color: #27ae60;
        }

        .features-section .feature-card p {
            font-size: 1.05rem;
            line-height: 1.7;
            color: #5a6c7d;
            margin-bottom: 0;
        }

        /* Эффект для отдельных карточек */
        .features-section .feature-card:nth-child(1) .feature-icon {
            background: linear-gradient(135deg, rgba(231, 76, 60, 0.1), rgba(192, 57, 43, 0.1));
        }

        .features-section .feature-card:nth-child(1) .feature-icon i {
            background: linear-gradient(135deg, #e74c3c, #c0392b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .features-section .feature-card:nth-child(2) .feature-icon {
            background: linear-gradient(135deg, rgba(52, 152, 219, 0.1), rgba(41, 128, 185, 0.1));
        }

        .features-section .feature-card:nth-child(2) .feature-icon i {
            background: linear-gradient(135deg, #3498db, #2980b9);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .features-section .feature-card:nth-child(3) .feature-icon {
            background: linear-gradient(135deg, rgba(155, 89, 182, 0.1), rgba(142, 68, 173, 0.1));
        }

        .features-section .feature-card:nth-child(3) .feature-icon i {
            background: linear-gradient(135deg, #9b59b6, #8e44ad);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .features-section .feature-card:nth-child(4) .feature-icon {
            background: linear-gradient(135deg, rgba(241, 196, 15, 0.1), rgba(243, 156, 18, 0.1));
        }

        .features-section .feature-card:nth-child(4) .feature-icon i {
            background: linear-gradient(135deg, #f1c40f, #f39c12);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        /* Декоративные элементы */
        .features-section .decor-element {
            position: absolute;
            font-size: 8rem;
            opacity: 0.03;
            color: #27ae60;
            z-index: 1;
            pointer-events: none;
        }

        .features-section .decor-1 {
            top: 10%;
            left: 5%;
            animation: float-slow 20s infinite ease-in-out;
        }

        .features-section .decor-2 {
            bottom: 10%;
            right: 5%;
            animation: float-slow 25s infinite ease-in-out reverse;
        }

        @keyframes float-slow {
            0%, 100% { transform: translateY(0) rotate(0deg); }
            33% { transform: translateY(-20px) rotate(10deg); }
            66% { transform: translateY(20px) rotate(-10deg); }
        }

        /* Адаптивность */
        @media (max-width: 992px) {
            .features-section {
                padding: 80px 0;
            }
            
            .features-section .section-title h2 {
                font-size: 2.4rem;
            }
            
            .features-section .section-title p {
                font-size: 1.2rem;
                padding: 0 20px;
            }
            
            .features-section .features-grid {
                gap: 25px;
            }
            
            .features-section .feature-card {
                padding: 35px 25px;
            }
        }

        @media (max-width: 768px) {
            .features-section {
                padding: 70px 0;
            }
            
            .features-section .section-title h2 {
                font-size: 2.2rem;
            }
            
            .features-section .section-title p {
                font-size: 1.1rem;
            }
            
            .features-section .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .features-section .feature-icon {
                width: 70px;
                height: 70px;
            }
            
            .features-section .feature-icon i {
                font-size: 2.2rem;
            }
            
            .features-section .feature-card h3 {
                font-size: 1.4rem;
            }
            
            .features-section .feature-card p {
                font-size: 1rem;
            }
            
            .features-section .decor-element {
                display: none;
            }
        }

        @media (max-width: 576px) {
            .features-section .features-grid {
                grid-template-columns: 1fr;
                max-width: 400px;
                margin: 0 auto;
            }
            
            .features-section .section-title h2 {
                font-size: 2rem;
            }
            
            .features-section .feature-card {
                padding: 30px 25px;
            }
        }

        /* Стили для демонстрационного контента (не входят в секцию) */
        .demo-content-section {
            padding: 60px 20px;
            background-color: #1a2a3a;
            color: white;
        }
        
        .demo-container {
            max-width: 1200px;
            margin: 0 auto;
        }
        
        .demo-content-section h2 {
            margin-bottom: 20px;
        }