* { margin: 0; padding: 0; box-sizing: border-box; scroll-behavior: smooth; }
        body { font-family: 'Inter', sans-serif; color: #1e293b; line-height: 1.5; background-color: #f0f2f5; }
        .container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
        :root { --primary: #2563eb; --primary-dark: #1d4ed8; --red: #dc2626; --gray-border: #e2e8f0; --text-dark: #0f172a; --bg-white: #ffffff; --bg-light: #f8fafc; --bg-darker: #eef2ff; --card-bg: #ffffff; }
        .btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; background-color: var(--primary); color: white; padding: 12px 28px; border-radius: 8px; font-weight: 600; text-decoration: none; transition: all 0.3s ease; border: none; cursor: pointer; font-size: 1rem; }
        .btn:hover { background-color: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 4px 12px rgba(37,99,235,0.2); }
        .btn-small { padding: 8px 14px; font-size: 0.8rem; white-space: nowrap; }
        .btn-outline { background-color: transparent; border: 2px solid var(--primary); color: var(--primary); }
        .btn-outline:hover { background-color: var(--primary); color: white; }
        .btn-red { background-color: var(--red); border: 2px solid var(--red); }
        .btn-red:hover { background-color: #b91c1c; }
        .btn-gray { background-color: #64748b; border: none; }
        .btn-gray:hover { background-color: #475569; }
        .section { padding: 80px 0; }
        .section-dark { background-color: var(--bg-light); }
        .section-white { background-color: var(--bg-white); }
        .section-darker { background-color: var(--bg-darker); }
        .section-title { font-size: 2.2rem; font-weight: 800; margin-bottom: 16px; color: var(--text-dark); text-align: center; position: relative; }
        .section-title:after { content: ''; display: block; width: 80px; height: 4px; background: var(--primary); margin: 16px auto 0; border-radius: 4px; }
        .section-subtitle { font-size: 1.1rem; color: #475569; max-width: 700px; margin-bottom: 48px; text-align: center; margin-left: auto; margin-right: auto; }
        header { background: #eef2ff; box-shadow: 0 1px 3px rgba(0,0,0,0.05); position: sticky; top: 0; z-index: 50; }
        .navbar { display: flex; justify-content: space-between; align-items: center; padding: 16px 0; }
        .logo { display: flex; align-items: center; gap: 2px; cursor: pointer; }
        .logo img { height: 40px; width: auto; }
        .logo h1 { font-size: 1.6rem; font-weight: 800; color: var(--primary); letter-spacing: -0.5px; line-height: 1; }
        .nav-links { display: flex; gap: 32px; align-items: center; }
        .nav-links a { text-decoration: none; color: #1e293b; font-weight: 500; transition: color 0.2s; }
        .nav-links a:hover { color: var(--primary); }
        .phone-icon { background-color: var(--primary); width: 40px; height: 40px; border-radius: 8px; display: flex; align-items: center; justify-content: center; transition: all 0.3s; text-decoration: none; }
        .phone-icon a { color: white; font-size: 1.2rem; text-decoration: none; }
        .phone-icon:hover { background-color: var(--primary-dark); transform: scale(1.05); }
        .hamburger { display: none; flex-direction: column; cursor: pointer; gap: 5px; }
        .hamburger span { width: 25px; height: 3px; background-color: #1e293b; transition: 0.3s; border-radius: 3px; }
        .mobile-menu { display: none; position: fixed; top: 70px; left: 0; width: 100%; background: white; box-shadow: 0 10px 20px rgba(0,0,0,0.1); z-index: 49; padding: 20px 0; }
        .mobile-menu.active { display: block; }
        .mobile-menu a { display: block; padding: 12px 24px; text-decoration: none; color: #1e293b; font-weight: 500; border-bottom: 1px solid var(--gray-border); }
        .hero-desktop { background: linear-gradient(135deg, #e2e8f0 0%, #94a3b8 100%); padding: 40px 0 50px; }
        .hero-grid { display: flex; flex-wrap: wrap; align-items: center; gap: 48px; }
        .hero-content { flex: 1; }
        .hero-image { flex: 1; text-align: center; position: relative; min-height: 400px; margin-top: 40px; }
        .slider-container { position: relative; width: 100%; overflow: hidden; border-radius: 12px; }
        .slider-slide { position: absolute; top: 0; left: 0; width: 100%; opacity: 0; transition: opacity 0.8s ease-in-out; display: flex; align-items: center; justify-content: center; }
        .slider-slide.active { opacity: 1; position: relative; }
        .slider-slide img { max-width: 100%; height: auto; border-radius: 12px; object-fit: contain; }
        .slider-dots { position: absolute; bottom: -30px; left: 50%; transform: translateX(-50%); display: flex; gap: 12px; z-index: 10; }
        .slider-dot { width: 10px; height: 10px; border-radius: 50%; background-color: #cbd5e1; cursor: pointer; transition: background-color 0.3s; }
        .slider-dot.active { background-color: var(--primary); }
        .hero-content h1 { font-size: 3rem; font-weight: 800; line-height: 1.2; margin-bottom: 20px; color: #0f172a; }
        .hero-content p { font-size: 1.2rem; color: #1e293b; margin-bottom: 32px; }
        .hero-mobile { display: none; background: linear-gradient(180deg, #7c8798 0%, #e2e8f0 100%); padding: 27px 0 40px 0 ; text-align: center; }
        .hero-mobile .slider-container { position: relative; width: 100%; height: 250px; margin: 20px 0; background: transparent; border-radius: 12px; }
        .hero-mobile .slider-slide { position: absolute; top: 0; left: 0; width: 100%; height: 100%; opacity: 0; transition: opacity 1.3s ease-in-out; display: flex; align-items: center; justify-content: center; will-change: opacity; backface-visibility: hidden; }
        .hero-mobile .slider-slide.active { opacity: 1; z-index: 2; }
        .hero-mobile .slider-slide img { max-width: 100%; max-height: 100%; width: auto; height: auto; object-fit: contain; display: block; border-radius: 12px; }
        .hero-mobile .slider-dots { bottom: -25px; }
        .hero-mobile h1 { font-size: 1.8rem; font-weight: 800; margin-bottom: 12px; color: #ffffff; text-shadow: 1px 2px 2px rgba(0,0,0,0.3); }
        .hero-mobile p { font-size: 1rem; font-weight: 600; color: #1e293b; margin-bottom: 24px; padding: 0 8px; }
        .categories-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 40px; margin-top: 40px; }
        .category-card { background: var(--card-bg); border-radius: 24px; transition: all 0.4s cubic-bezier(0.2,0.9,0.4,1.1); text-align: center; display: flex; justify-content: space-between; flex-direction: column; align-items: center; position: relative; overflow: hidden; box-shadow: 0 8px 24px rgba(0,0,0,0.08); }
        .category-card:before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 5px; background: linear-gradient(90deg, var(--primary), var(--primary-dark)); transform: translateX(-100%); transition: transform 0.4s ease; }
        .category-card:hover:before { transform: translateX(0); }
        .category-card:hover { transform: translateY(-8px); box-shadow: 0 25px 40px -12px rgba(0,0,0,0.2); }
        .category-card .card-image { width: 100%; padding: 40px 40px 20px; background: linear-gradient(135deg, #f8fafc 0%, #eef2ff 100%); border-radius: 24px 24px 0 0; transition: all 0.3s ease; }
        .category-card:hover .card-image { background: linear-gradient(135deg, #eef2ff 0%, #e0e7ff 100%); }
        .category-card img { width: 100%; max-width: 400px; height: auto; max-height: 240px; object-fit: contain; transition: transform 0.4s cubic-bezier(0.2,0.9,0.4,1.1); }
        .category-card:hover img { transform: scale(1.02); }
        .category-card .card-content { padding: 24px 28px 32px; width: 100%; }
        .category-card h3 { font-size: 1.6rem; font-weight: 700; color: var(--text-dark); margin-bottom: 12px; letter-spacing: -0.3px; }
        .category-card p { color: #475569; margin-bottom: 24px; font-size: 0.95rem; line-height: 1.5; }
        .category-buttons { display: flex; gap: 12px; flex-wrap: nowrap; justify-content: center; }
        .category-buttons .btn { min-width: auto; white-space: nowrap; }
        .three-buttons { display: flex; gap: 12px; justify-content: center; flex-wrap: nowrap; }
        .three-buttons .btn { font-size: 0.8rem; padding: 8px 12px; white-space: nowrap; }
        .about-wrapper { display: flex; flex-wrap: wrap; gap: 48px; align-items: flex-start; }
        .about-slider { flex: 1; min-width: 280px; }
        .about-slider .slider-container { position: relative; width: 100%; border-radius: 16px; overflow: hidden; background: #f8fafc; }
        .about-slider .slider-slide { position: absolute; top: 0; left: 0; width: 100%; opacity: 0; transition: opacity 2.5s ease-in-out; text-align: center; }
        .about-slider .slider-slide.active { opacity: 1; position: relative; }
        .about-slider .slider-slide img { width: 88%; height: auto; display: block; border-radius: 16px; margin: 0 auto; }
        .about-slider .slider-dots { position: absolute; bottom: 12px; left: 50%; transform: translateX(-50%); display: flex; gap: 10px; z-index: 10; }
        .about-slider .slider-dot { width: 8px; height: 8px; border-radius: 50%; background-color: rgba(255,255,255,0.6); cursor: pointer; transition: all 0.2s; }
        .about-slider .slider-dot.active { background-color: var(--primary); width: 24px; border-radius: 4px; }
        .about-text { flex: 1; min-width: 280px; }
        .about-text h3 { font-size: 1.8rem; font-weight: 700; color: var(--text-dark); margin-bottom: 24px; }
        .about-text p { color: #334155; line-height: 1.7; margin-bottom: 20px; font-size: 1rem; text-indent: 25px; text-align: justify; }
        .about-bottom-text { margin-top: 16px; width: 100%; text-align: justify; }
        .about-bottom-text p { color: #334155; line-height: 1.7; margin-bottom: 0; text-indent: 20px; }
        .about-features { margin-top: 40px; display: flex; flex-wrap: wrap; gap: 32px; justify-content: space-between; }
        .about-features .feature { display: flex; flex-direction: column; align-items: center; gap: 12px; text-align: center; flex: 1; min-width: 150px; }
        .about-features .feature i { font-size: 2rem; color: var(--primary); }
        .about-features .feature span { font-weight: 600; color: var(--text-dark); font-size: 1rem; }
        .level-modal { display: none; position: fixed; z-index: 1001; left: 0; top: 0; width: 100%; height: 100%; background-color: rgba(0,0,0,0.6); justify-content: center; align-items: center; }
        .level-modal-content { background: white; max-width: 1100px; width: 90%; max-height: 90vh; border-radius: 16px; position: relative; overflow-y: auto; border: 1px solid var(--gray-border); box-shadow: 0 20px 35px -10px rgba(0,0,0,0.3); }
        .level-modal-inner { padding: 32px; }
        .close-level-modal { position: absolute; top: -5px; right: 10px; font-size: 28px; cursor: pointer; color: #64748b; z-index: 10; }
        .close-level-modal:hover { color: #0f172a; }
        .level-modal-title-section { text-align: center; margin-bottom: 28px; padding-bottom: 16px; border-bottom: 2px solid var(--gray-border); }
        .level-modal-title-section h2 { font-size: 1.6rem; font-weight: 700; color: var(--text-dark); margin-bottom: 8px; }
        .level-modal-title-section p { font-size: 0.95rem; color: #475569; }
        .mode-switch { display: flex; gap: 12px; justify-content: center; margin-bottom: 34px; flex-wrap: nowrap; overflow-x: auto; white-space: nowrap; align-items: center; }
        .mode-switch .mode-btn { flex-shrink: 0; }
        .mode-btn { padding: 8px 24px; border-radius: 5px; font-weight: 600; cursor: pointer; transition: all 0.2s; background: #f1f5f9; color: #1e293b; border: none; white-space: nowrap; }
        .mode-btn.active { background: var(--primary); color: white; }
        .level-modal-layout { display: flex; flex-wrap: wrap; gap: 32px; margin-bottom: 32px; }
        .level-modal-left { flex: 1; min-width: 200px; display: flex; flex-direction: column; }
        .level-modal-right { flex: 1; min-width: 250px; display: flex; flex-direction: column; }
        .level-main-image { text-align: center; background: #f8fafc; border-radius: 12px; padding: 20px; margin-bottom: 20px; }
        .level-main-image img { max-width: 100%; max-height: 250px; min-height: 250px; object-fit: contain; }
        .level-thumbnails { display: flex; gap: 25px; justify-content: center; flex-wrap: wrap; margin-top: 10px; margin-bottom: 20px; }
        .level-thumb { width: 70px; height: 70px; object-fit: cover; border-radius: 8px; cursor: pointer; border: 1px solid var(--gray-border); transition: all 0.2s; background: #fff; padding: 4px; }
        .level-thumb:hover { border-color: var(--primary); transform: scale(1.03); }
        .level-thumb.active { border: 2px solid var(--primary); }
        .level-description { color: #334155; line-height: 1.6; margin-bottom: 24px; }
        .level-features-block { width: 100%; }
        .level-features-title { font-weight: 700; font-size: 1rem; margin-bottom: 16px; color: var(--text-dark); }
        .level-features-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px 24px; list-style: none; padding: 0; }
        .level-features-list li { margin-bottom: 8px; padding-left: 20px; position: relative; font-size: 0.85rem; line-height: 1.4; list-style: none; }
        .level-features-list li:before { content: "•"; color: var(--primary); font-weight: bold; position: absolute; left: 0; }
        .level-specs-table-desktop { width: 100%; border-collapse: collapse; margin: 16px 0 24px; display: table; }
        .level-specs-table-desktop th, .level-specs-table-desktop td { border: 1px solid var(--gray-border); padding: 12px; text-align: left; vertical-align: top; }
        .level-specs-table-desktop th { background-color: #f1f5f9; font-weight: 600; width: 25%; }
        .level-specs-mobile { display: none; margin: 16px 0 24px; border-radius: 12px; overflow: hidden; border: 1px solid var(--gray-border); }
        .spec-item { border-bottom: 1px solid var(--gray-border); }
        .spec-item:last-child { border-bottom: none; }
        .spec-param { background-color: #f1f5f9; padding: 12px; font-weight: 600; color: var(--text-dark); }
        .spec-value { background-color: white; padding: 12px; color: #1e293b; }
        .modal-buttons { display: flex; gap: 16px; justify-content: center; margin-top: 16px; }
        .category-modal, .product-detail-modal { display: none; position: fixed; z-index: 1001; left: 0; top: 0; width: 100%; height: 100%; background-color: rgba(0,0,0,0.5); justify-content: center; align-items: center; }
        .cert-grid { display: flex; flex-wrap: wrap; gap: 48px; justify-content: center; margin-top: 20px; }
        .cert-item { flex: 0 0 auto; width: 340px; cursor: pointer; transition: transform 0.5s ease-out; text-align: center; }
        .cert-item:hover { transform: scale(1.05); }
        .cert-item img { width: 100%; height: auto; border: 1px solid var(--gray-border); border-radius: 8px; background: white; padding: 8px; }
        .modal { display: none; position: fixed; z-index: 1000; left: 0; top: 0; width: 100%; height: 100%; background-color: rgba(0,0,0,0.8); justify-content: center; align-items: center; cursor: pointer; }
        .modal img { max-width: 90%; max-height: 90%; object-fit: contain; border-radius: 8px; }
        .contact-row { display: flex; flex-wrap: wrap; gap: 48px; background: white; border-radius: 12px; padding: 22px; margin-top: 20px; border: 1px solid var(--gray-border); }
        .form-col, .info-col { flex: 1; }
        .form-group { margin-bottom: 20px; }
        input, textarea { width: 100%; padding: 14px 18px; border: 1px solid var(--gray-border); border-radius: 8px; font-family: inherit; font-size: 1rem; background-color: white; color: #1e293b; }
        .contact-detail { display: flex; align-items: center; gap: 16px; margin-bottom: 28px; flex-wrap: nowrap; }
        .contact-detail i { font-size: 1.6rem; color: var(--primary); width: 32px; }
        .floating-btn { position: fixed; bottom: 20px; right: 16px; background-color: var(--red); color: white; width: 48px; height: 48px; border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; box-shadow: 0 4px 12px rgba(0,0,0,0.2); transition: all 0.3s ease; z-index: 100; border: none; font-size: 20px; }
        .floating-btn:hover { transform: scale(1.1); background-color: #b91c1c; }
        footer { background: #0f172a; color: #cbd5e1; padding: 48px 0; text-align: center; width: 100%; margin-top: 40px; }
        @media (max-width: 768px) {
            .hero-desktop { display: none; }
            .hero-mobile { display: block; }
            .nav-links { display: none; }
            .hamburger { display: flex; }
            .navbar { justify-content: space-between; }
            .mobile-phone-icon { display: flex; align-items: center; margin-left: auto; margin-right: 16px; }
            .mobile-phone-icon a { background-color: var(--primary); width: 38px; height: 38px; border-radius: 8px; display: flex; align-items: center; justify-content: center; color: white; font-size: 1.1rem; text-decoration: none; }
            .section { padding: 48px 0; }
            .categories-grid { grid-template-columns: 1fr; gap: 28px; }
            .category-card .card-image { padding: 30px 30px 15px; }
            .category-card img { max-width: 300px; max-height: 180px; }
            .category-card .card-content { padding: 20px 20px 24px; }
            .category-card h3 { font-size: 1.4rem; }
            .hero-mobile .slider-container { height: 200px; }
            .level-modal-inner { padding: 20px; }
            .level-features-list { grid-template-columns: 1fr; }
            .level-modal-title-section h2 { font-size: 1.3rem; }
            .level-specs-table-desktop { display: none; }
            .level-specs-mobile { display: block; }
            .level-modal-layout { flex-direction: column; }
            .level-modal-right { order: 2; }
            .level-modal-left { order: 1; }
            .level-specs-mobile { order: 4; }
            .modal-buttons { order: 5; flex-direction: column; }
            .three-buttons { flex-wrap: wrap; }
            .three-buttons .btn { white-space: normal; font-size: 0.75rem; }
            .category-buttons { flex-wrap: wrap; }
            .category-buttons .btn { white-space: normal; font-size: 0.75rem; }
            .level-main-image img { max-height: 300px; min-height: 300px; }
            .level-thumb { width: 60px; height: 60px; }
            .mode-switch { gap: 8px; overflow-x: auto; padding-bottom: 4px; justify-content: flex-start; }
            .mode-btn { padding: 6px 8px; font-size: 0.8rem; }
            .level-modal-left .btn-red { width: 100%; margin-bottom: 20px; }
            .floating-btn { bottom: 80px; right: 8px; width: 44px; height: 44px; font-size: 18px; }
        }
        .level-modal-left .consult-btn-left { margin-top: 25px; align-self: center; width: 100%; }
        @media (min-width: 769px) {
            .mobile-phone-icon { display: none; }
            .level-modal-left .consult-btn-left { width: auto; align-self: stretch; }
        }
        /* Стили для сообщения вместо формы */
        .message-container {
            padding: 40px 20px;
            text-align: center;
            background: white;
            border-radius: 12px;
            border: 1px solid var(--gray-border);
        }
        .message-success {
            background: #d4edda;
            color: #155724;
            border: 1px solid #c3e6cb;
        }
        .message-error {
            background: #f8d7da;
            color: #721c24;
            border: 1px solid #f5c6cb;
        }
        .message-container i {
            font-size: 48px;
            margin-bottom: 16px;
        }
        .message-container p {
            margin: 0;
            font-size: 1rem;
        }