/* CSS Reset & Browser Compatibility */
        *, *::before, *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            -webkit-box-sizing: border-box;
            -moz-box-sizing: border-box;
            -ms-box-sizing: border-box;
            -o-box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -ms-text-size-adjust: 100%;
            -moz-text-size-adjust: 100%;
            -webkit-tap-highlight-color: transparent;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            -webkit-overflow-scrolling: touch;
            -ms-overflow-style: -ms-autohiding-scrollbar;
            scrollbar-width: thin;
            scrollbar-color: #ff6b35 #0a1628;
            height: 100%;
            min-height: 100%;
        }

        body {
            font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: linear-gradient(135deg, #0d1b2a 0%, #1b263b 100%);
            color: #ffffff;
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            -webkit-overflow-scrolling: touch;
            min-width: 320px;
            height: 100%;
            min-height: 100%;
            min-height: 100vh;
            min-height: 100dvh;
            min-height: -webkit-fill-available;
            margin: 0;
            padding: 0;
        }

        /* IE11 and older browser fixes */
        _:-ms-lang(x), body {
            min-height: 100vh;
        }

        /* Disable text selection for better UX on touch devices */
        .no-select {
            -webkit-user-select: none;
            -moz-user-select: none;
            -ms-user-select: none;
            user-select: none;
            pointer-events: none;
        }

        /* Focus styles for accessibility */
        :focus {
            outline: 2px solid #ffd700;
            outline-offset: 2px;
        }

        :focus-visible {
            outline: 2px solid #ffd700;
            outline-offset: 2px;
        }

        /* Touch action optimization */
        .touch-optimized {
            touch-action: manipulation;
            -ms-touch-action: manipulation;
        }

        /* Responsive Root Variables */
        :root {
            --primary-dark: #0a1628;
            --primary-blue: #1e3a5f;
            --accent-orange: #ff6b35;
            --accent-gold: #ffd700;
            --text-white: #ffffff;
            --text-light: #b0b0b0;
            --gradient-start: #0d1b2a;
            --gradient-end: #1b263b;
            --font-heading: 'Orbitron', 'Noto Sans SC', -apple-system, sans-serif;
            --font-body: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --transition-base: 0.3s ease;
            --transition-slow: 0.6s ease;
            
            /* Responsive spacing */
            --section-padding-x: clamp(15px, 5vw, 60px);
            --section-padding-y: clamp(60px, 10vh, 120px);
            
            /* Container max-width */
            --container-max: 1400px;
        }

        /* Container */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--section-padding-x);
        }

        /* Selection styling */
        ::selection {
            background: rgba(255, 107, 53, 0.3);
            color: #ffffff;
        }

        ::-webkit-scrollbar {
            width: 8px;
        }

        ::-webkit-scrollbar-track {
            background: var(--primary-dark);
        }

        ::-webkit-scrollbar-thumb {
            background: linear-gradient(180deg, var(--accent-orange), var(--accent-gold));
            border-radius: 4px;
        }

        /* Progress Bar */
        .progress-bar {
            position: fixed;
            top: 0;
            left: 0;
            width: 0%;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-orange), var(--accent-gold));
            z-index: 9999;
            transition: width 0.1s ease;
        }

        /* Back to Top Button */
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 56px;
            height: 56px;
            background: linear-gradient(135deg, var(--accent-orange), var(--accent-gold));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
            transition: all 0.3s ease;
            z-index: 999;
            box-shadow: 0 4px 15px rgba(255, 107, 53, 0.4);
            touch-action: manipulation;
            -webkit-tap-highlight-color: transparent;
            user-select: none;
            -webkit-user-select: none;
        }

        /* Safe area padding for iOS notch */
        @supports(padding-bottom: env(safe-area-inset-bottom)) {
            .back-to-top {
                bottom: calc(30px + env(safe-area-inset-bottom));
            }
        }

        .back-to-top.visible {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .back-to-top:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 25px rgba(255, 107, 53, 0.6);
        }

        .back-to-top svg {
            width: 24px;
            height: 24px;
            fill: var(--primary-dark);
            transition: transform 0.3s ease;
        }

        .back-to-top:hover svg {
            transform: translateY(-2px);
        }

        /* Navigation */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            padding: 20px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: all var(--transition-base);
            background: transparent;
            min-height: 70px;
            box-sizing: border-box;
            gap: 20px;
        }

        .navbar.scrolled {
            background: rgba(10, 22, 40, 0.95);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            -moz-backdrop-filter: blur(10px);
            -ms-backdrop-filter: blur(10px);
            padding: 15px 60px;
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
        }

        /* Safe area padding for iOS notch */
        @supports(padding-top: env(safe-area-inset-top)) {
            .navbar {
                padding-top: calc(20px + env(safe-area-inset-top));
            }
            .navbar.scrolled {
                padding-top: calc(15px + env(safe-area-inset-top));
            }
        }

        .logo {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-white);
            text-decoration: none;
            letter-spacing: 2px;
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--accent-orange), var(--accent-gold));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.2rem;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            gap: 16px;
            list-style: none;
            flex-wrap: nowrap;
            align-items: center;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .nav-links::-webkit-scrollbar {
            display: none;
        }

        .nav-links li {
            flex-shrink: 0;
        }

        .language-switcher-container {
            flex-shrink: 0 !important;
            margin-left: 12px;
        }

        .nav-links a {
            color: var(--text-white);
            text-decoration: none;
            font-size: 0.95rem;
            font-weight: 500;
            position: relative;
            transition: all var(--transition-base);
            padding: 8px 16px;
            white-space: nowrap;
            border-radius: 8px;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-orange), var(--accent-gold));
            border-radius: 3px;
            transition: all var(--transition-base);
        }

        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 60%;
        }

        .nav-links a:hover {
            color: var(--accent-gold);
            background: rgba(255, 193, 7, 0.1);
        }
        
        .nav-links a.active {
            color: var(--accent-gold);
            background: rgba(255, 193, 7, 0.15);
            box-shadow: 0 2px 10px rgba(255, 193, 7, 0.2);
        }

        .mobile-menu-btn {
            display: none;
            flex-direction: column;
            gap: 6px;
            cursor: pointer;
            padding: 12px;
            min-width: 48px;
            min-height: 48px;
            justify-content: center;
            align-items: center;
            touch-action: manipulation;
            -webkit-tap-highlight-color: rgba(255, 215, 0, 0.2);
            user-select: none;
            -webkit-user-select: none;
        }

        .mobile-menu-btn:active span {
            background: var(--accent-gold);
        }

        .mobile-menu-btn span {
            width: 30px;
            height: 3px;
            background: var(--text-white);
            transition: all var(--transition-base);
            border-radius: 2px;
        }

        /* Hero Section with Video Background */
        .hero {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            min-height: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            margin: 0;
            padding: 0;
            background: linear-gradient(135deg, #0d1b2a 0%, #1b263b 100%);
        }

        .hero-video-bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100vw;
            height: 100vh;
            height: 100dvh;
            height: -webkit-fill-available;
            min-height: 100%;
            z-index: 1;
            object-fit: cover;
            background-size: cover;
            background-position: center;
        }

        .hero-video-fallback {
            position: absolute;
            top: 0;
            left: 0;
            width: 100vw;
            height: 100vh;
            height: 100dvh;
            height: -webkit-fill-available;
            min-height: 100%;
            z-index: 1;
            background: url('https://images.unsplash.com/photo-1581091226825-a6a2a5aee158?w=1920&q=80') center/cover no-repeat;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }

        .hero-canvas {
            position: absolute;
            top: 0;
            left: 0;
            width: 100vw;
            height: 100vh;
            height: 100dvh;
            height: -webkit-fill-available;
            min-height: 100%;
            z-index: 2;
            pointer-events: none;
        }

        .hero-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100vw;
            height: 100vh;
            height: 100dvh;
            height: -webkit-fill-available;
            min-height: 100%;
            background: linear-gradient(135deg, rgba(10, 22, 40, 0.85) 0%, rgba(30, 58, 95, 0.7) 100%);
            z-index: 3;
        }

        .hero-content {
            position: relative;
            z-index: 4;
            text-align: center;
            max-width: 1000px;
            padding: 120px 20px 20px;
            width: 100%;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 16px;
            box-sizing: border-box;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes fadeInDown {
            from {
                opacity: 0;
                transform: translateY(-20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }

        .hero-badge {
            display: inline-block;
            padding: 12px 40px;
            background: linear-gradient(135deg, rgba(255, 107, 53, 0.2) 0%, rgba(255, 193, 7, 0.15) 100%);
            border: 2px solid transparent;
            border-radius: 50px;
            font-size: clamp(0.8rem, 2vw, 0.95rem);
            color: var(--accent-gold);
            margin-bottom: 30px;
            animation: fadeInDown 1s ease;
            letter-spacing: 2px;
            max-width: 90%;
            word-wrap: break-word;
            backdrop-filter: blur(10px);
            box-shadow: 0 4px 20px rgba(255, 107, 53, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.3);
            transition: all 0.3s ease;
            font-weight: 500;
            text-transform: uppercase;
        }
        
        .hero-badge:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(255, 107, 53, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.5);
            background: linear-gradient(135deg, rgba(255, 107, 53, 0.25) 0%, rgba(255, 193, 7, 0.2) 100%);
        }

        .hero-title {
            font-family: var(--font-heading);
            font-size: clamp(2rem, 6vw, 4rem);
            font-weight: 800;
            margin-bottom: 20px;
            background: linear-gradient(135deg, var(--text-white) 0%, var(--accent-gold) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            animation: fadeInUp 1s ease;
            letter-spacing: 4px;
            line-height: 1.2;
            text-shadow: 0 0 40px rgba(255, 215, 0, 0.3);
        }

        .hero-title span {
            background: linear-gradient(135deg, var(--accent-orange), var(--accent-gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: clamp(1rem, 2.5vw, 1.5rem);
            color: var(--text-light);
            margin-bottom: 50px;
            animation: fadeInUp 1s ease 0.2s backwards;
            line-height: 1.6;
            max-width: 90%;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-buttons {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 35px;
        }

        .hero-buttons .btn {
            min-width: 180px;
            padding: 15px 35px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 50px;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            transition: all 0.3s ease;
            cursor: pointer;
            border: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--accent-orange), #ff8c42);
            color: var(--primary-dark);
            box-shadow: 0 4px 20px rgba(255, 107, 53, 0.4);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(255, 107, 53, 0.6);
        }

        .btn-secondary {
            background: transparent;
            color: var(--text-white);
            border: 2px solid rgba(255, 255, 255, 0.3);
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            transform: translateY(-3px);
        }

        .scroll-indicator {
            position: absolute;
            bottom: 40px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 10;
            animation: bounce 2s infinite;
        }

        @keyframes bounce {
            0%, 20%, 50%, 80%, 100% {
                transform: translateX(-50%) translateY(0);
            }
            40% {
                transform: translateX(-50%) translateY(-10px);
            }
            60% {
                transform: translateX(-50%) translateY(-5px);
            }
        }

        .scroll-indicator svg {
            width: 30px;
            height: 30px;
            fill: var(--accent-gold);
            opacity: 0.6;
        }

        /* 3D Card Effect for Hero */
        .hero-3d-container {
            perspective: 1000px;
            margin-top: 40px;
        }

        .hero-3d-card {
            display: inline-block;
            padding: 20px 40px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 15px;
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 215, 0, 0.2);
            transform-style: preserve-3d;
            transition: transform 0.3s ease;
        }

        .hero-3d-card:hover {
            transform: rotateY(5deg) rotateX(5deg);
            border-color: rgba(255, 215, 0, 0.5);
        }

        /* Stats with count animation */
        .hero-stats {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: clamp(20px, 8vw, 50px);
            flex-wrap: wrap;
            margin-top: 30px;
            padding: 20px;
            width: 100%;
            max-width: 800px;
        }

        .hero-stat-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: flex-end;
            min-width: 70px;
            flex: 1;
            max-width: 120px;
            height: 100px;
        }

        

        .hero-stat-number {
            font-family: var(--font-heading);
            font-size: clamp(1.8rem, 5vw, 2.5rem);
            font-weight: 800;
            background: linear-gradient(135deg, var(--accent-orange), var(--accent-gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
            position: relative;
            overflow: hidden;
        }

        .hero-stat-number::after {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
            animation: shimmer 3s infinite;
        }

        @keyframes shimmer {
            100% { left: 100%; }
        }

        .hero-stat-label {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-top: 8px;
            text-align: center;
            max-width: 100px;
            height: 40px;
            display: flex;
            align-items: flex-start;
            justify-content: center;
        }

        .hero-buttons {
            display: flex;
            gap: 30px;
            justify-content: center;
            flex-wrap: wrap;
            animation: fadeInUp 1s ease 0.4s backwards;
        }

        .btn {
            padding: 18px 45px;
            font-size: 1rem;
            font-weight: 600;
            border: none;
            border-radius: 50px;
            cursor: pointer;
            transition: all var(--transition-base);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            font-family: var(--font-body);
            min-height: 48px;
            min-width: 140px;
            touch-action: manipulation;
            -webkit-tap-highlight-color: rgba(255, 215, 0, 0.3);
            user-select: none;
            -webkit-user-select: none;
            -moz-user-select: none;
            -ms-user-select: none;
        }

        .btn:active {
            transform: scale(0.97);
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--accent-orange), #ff8c5a);
            color: var(--text-white);
            box-shadow: 0 10px 30px rgba(255, 107, 53, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 40px rgba(255, 107, 53, 0.5);
        }

        .btn-secondary {
            background: transparent;
            color: var(--text-white);
            border: 2px solid var(--text-white);
        }

        .btn-secondary:hover {
            background: var(--text-white);
            color: var(--primary-dark);
            transform: translateY(-3px);
        }

        .scroll-indicator {
            position: absolute;
            bottom: 40px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 4;
            animation: bounce 2s infinite;
        }

        .scroll-indicator svg {
            width: 30px;
            height: 30px;
            fill: var(--text-light);
        }

        /* Section Styles */
        section {
            padding: 120px 60px;
            position: relative;
        }

        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-tag {
            display: inline-block;
            padding: 8px 25px;
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid var(--accent-gold);
            border-radius: 50px;
            font-size: 0.85rem;
            color: var(--accent-gold);
            margin-bottom: 20px;
            letter-spacing: 2px;
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: 3rem;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--text-white);
            letter-spacing: 3px;
        }

        .section-desc {
            font-size: 1.1rem;
            color: var(--text-light);
            max-width: 700px;
            margin: 0 auto;
        }

        /* Values Section */
        .values {
            position: relative;
            margin-top: 100vh;
            background: linear-gradient(180deg, var(--gradient-end) 0%, var(--gradient-start) 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .values-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            max-width: 1400px;
            margin: 0 auto;
        }
       
        .value-card {
            background: rgba(30, 58, 95, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            padding: 40px 30px;
            text-align: center;
            transition: all var(--transition-slow);
            position: relative;
            overflow: hidden;
        }

        .value-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(255, 107, 53, 0.1), rgba(255, 215, 0, 0.05));
            opacity: 0;
            transition: opacity var(--transition-base);
        }

        .value-card:hover {
            transform: translateY(-10px);
            border-color: var(--accent-orange);
            box-shadow: 0 20px 60px rgba(255, 107, 53, 0.2);
        }

        .value-card:hover::before {
            opacity: 1;
        }

        .value-icon {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, var(--accent-orange), var(--accent-gold));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 25px;
            font-size: 2rem;
            position: relative;
            z-index: 1;
        }

        .value-title {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 15px;
            color: var(--text-white);
            position: relative;
            z-index: 1;
        }

        .value-desc {
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.7;
            position: relative;
            z-index: 1;
        }

        /* About Section */
        .about {
            background: var(--gradient-start);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .about-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 80px;
            max-width: 1400px;
            margin: 0 auto;
            align-items: center;
        }

        .about-image {
            position: relative;
        }

        .about-image-main {
            width: 100%;
            height: 500px;
            background: linear-gradient(135deg, var(--primary-blue), var(--primary-dark));
            border-radius: 20px;
            overflow: hidden;
            position: relative;
        }

        .about-image-main img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .about-image-main:hover img {
            transform: scale(1.05);
        }

        .about-image-badge {
            position: absolute;
            bottom: -30px;
            right: -30px;
            width: 200px;
            height: 200px;
            background: linear-gradient(135deg, var(--accent-orange), var(--accent-gold));
            border-radius: 20px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            box-shadow: 0 20px 60px rgba(255, 107, 53, 0.4);
        }

        .badge-number {
            font-family: var(--font-heading);
            font-size: 3.5rem;
            font-weight: 800;
            color: var(--text-white);
        }

        .badge-text {
            font-size: 0.9rem;
            color: var(--text-white);
            text-align: center;
            line-height: 1.4;
        }

        .about-text h3 {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            margin-bottom: 30px;
            color: var(--text-white);
            letter-spacing: 2px;
        }

        .about-text p {
            font-size: 1.05rem;
            color: var(--text-light);
            margin-bottom: 25px;
            line-height: 1.8;
        }

        .about-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            margin-top: 50px;
        }

        .stat-item {
            text-align: center;
        }

        .stat-number {
            font-family: var(--font-heading);
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 5px;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-light);
        }

        /* Video Showcase Section */
        .video-showcase {
            background: linear-gradient(180deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
            padding: 120px 60px;
        }

        .video-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 40px;
            max-width: 1400px;
            margin: 0 auto;
        }

        .video-card {
            background: rgba(30, 58, 95, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            overflow: hidden;
            transition: all var(--transition-slow);
        }

        .video-card:hover {
            transform: translateY(-10px);
            border-color: var(--accent-orange);
            box-shadow: 0 20px 60px rgba(255, 107, 53, 0.2);
        }

        .video-container {
            position: relative;
            width: 100%;
            padding-bottom: 56.25%;
            background: var(--gradient-end);
            overflow: hidden;
        }

        .video-container video,
        .video-container iframe {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 101%;
            border: none;
            object-fit: cover;
        }
        
        .video-container video {
            display: block;
        }

        .video-play-btn {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, var(--accent-orange), var(--accent-gold));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all var(--transition-base);
            z-index: 10;
        }

        .video-play-btn:hover {
            transform: translate(-50%, -50%) scale(1.1);
            box-shadow: 0 10px 40px rgba(255, 107, 53, 0.5);
        }

        .video-play-btn svg {
            width: 30px;
            height: 30px;
            fill: var(--text-white);
            margin-left: 5px;
        }

        .video-volume-btn {
            position: absolute;
            bottom: 15px;
            right: 15px;
            width: 40px;
            height: 40px;
            background: rgba(0, 0, 0, 0.6);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all var(--transition-base);
            z-index: 10;
        }

        .video-volume-btn:hover {
            background: rgba(0, 0, 0, 0.8);
            transform: scale(1.1);
        }

        .video-volume-btn svg {
            width: 20px;
            height: 20px;
            fill: var(--text-white);
        }

        .video-volume-btn .volume-off {
            display: none;
        }

        .video-loading {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(10, 22, 40, 0.8);
            display: none;
            align-items: center;
            justify-content: center;
            z-index: 5;
        }

        .video-spinner {
            width: 48px;
            height: 48px;
            border: 4px solid rgba(255, 255, 255, 0.1);
            border-left-color: var(--accent-orange);
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }

        @keyframes spin {
            to { transform: rotate(360deg); }
        }

        .video-error {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(10, 22, 40, 0.9);
            display: none;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            z-index: 5;
            color: var(--text-light);
            text-align: center;
            padding: 20px;
        }

        .video-error svg {
            fill: var(--accent-orange);
            margin-bottom: 15px;
        }

        .video-error span {
            font-size: 1rem;
        }

        .video-info {
            padding: 30px;
        }

        .video-title {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-white);
        }

        .video-desc {
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.6;
        }

        .video-loading {
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 350px;
        }

        .video-empty {
            grid-column: span 2;
            text-align: center;
            padding: 60px 20px;
            background: rgba(30, 58, 95, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
        }

        /* Products Section */
        .products {
            background: linear-gradient(180deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
            padding: 100px 60px 150px;
            position: relative;
        }

        .products-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 20px;
            min-height: 400px;
        }

        .loading-container {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 60px 20px;
            grid-column: 1 / -1;
        }

        .loading-spinner {
            width: 50px;
            height: 50px;
            border: 3px solid rgba(255, 255, 255, 0.1);
            border-top-color: var(--accent-orange);
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }

        .loading-text {
            color: var(--text-muted);
            font-size: 1rem;
            margin-top: 15px;
        }

        @keyframes spin {
            to { transform: rotate(360deg); }
        }

        .product-card {
            background: rgba(30, 58, 95, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            overflow: hidden;
            transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            perspective: 1000px;
            display: flex;
            flex-direction: column;
            height: auto;
        }

        .product-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(255, 107, 53, 0.1) 0%, rgba(255, 215, 0, 0.1) 100%);
            opacity: 0;
            transition: opacity 0.5s ease;
            z-index: 1;
            pointer-events: none;
        }

        .product-card:hover {
            transform: translateY(-15px) scale(1.02);
            border-color: var(--accent-orange);
            box-shadow: 0 30px 80px rgba(255, 107, 53, 0.3), 
                        0 0 40px rgba(255, 107, 53, 0.1);
        }

        .product-card:hover::before {
            opacity: 1;
        }

        .product-image {
            height: 220px;
            position: relative;
            overflow: hidden;
            cursor: pointer;
        }

        .product-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .product-card:hover .product-image img {
            transform: scale(1.15) rotate(2deg);
        }

        .product-badge {
            position: absolute;
            top: 20px;
            right: 20px;
            padding: 8px 16px;
            background: linear-gradient(135deg, var(--accent-orange), var(--accent-gold));
            color: var(--text-white);
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: 20px;
            z-index: 2;
            animation: pulse-badge 2s infinite;
        }

        @keyframes pulse-badge {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.05); }
        }

        .product-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.7);
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            transition: opacity 0.4s ease;
            z-index: 3;
        }

        .product-card:hover .product-overlay {
            opacity: 1;
        }

        .product-content {
            position: relative;
            z-index: 2;
            padding: 25px;
            background: linear-gradient(180deg, transparent 0%, rgba(10, 22, 40, 0.8) 100%);
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .product-title {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            margin-bottom: 10px;
            color: var(--text-white);
            letter-spacing: 1px;
            transition: color 0.3s ease;
        }

        .product-card:hover .product-title {
            color: var(--accent-gold);
        }

        .product-desc {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-bottom: 20px;
            line-height: 1.6;
        }

        .product-features {
            display: flex;
            flex-direction: column;
            gap: 8px;
            margin-bottom: 20px;
        }

        .product-features li {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-light);
            transition: all 0.3s ease;
        }

        .product-features li::before {
            content: '✓';
            color: var(--accent-gold);
            font-weight: bold;
            transition: transform 0.3s ease;
        }

        .product-card:hover .product-features li {
            color: var(--text-white);
            transform: translateX(5px);
        }

        .product-card:hover .product-features li::before {
            transform: scale(1.2);
        }

        .view-btn {
            width: 100%;
            padding: 12px 20px;
            background: linear-gradient(135deg, var(--accent-orange), var(--accent-gold));
            border: none;
            border-radius: 10px;
            color: var(--primary-dark);
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .view-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
            transition: left 0.5s ease;
        }

        .view-btn:hover::before {
            left: 100%;
        }

        .view-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 20px rgba(255, 107, 53, 0.5);
        }

        .view-details-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent-gold);
            font-weight: 500;
            text-decoration: none;
            transition: all 0.3s ease;
        }

        .view-details-link:hover {
            gap: 12px;
            color: var(--accent-orange);
        }

        /* Floating Labels */
        .floating-label {
            position: absolute;
            top: 20px;
            left: 20px;
            padding: 6px 14px;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(10px);
            border-radius: 20px;
            font-size: 0.75rem;
            color: var(--accent-gold);
            z-index: 2;
        }

        /* Glow Effect for Product Cards */
        .product-card::after {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: conic-gradient(from 0deg, transparent, rgba(255, 107, 53, 0.1), transparent 30%);
            animation: rotate 4s linear infinite;
            opacity: 0;
            transition: opacity 0.5s ease;
            z-index: 0;
            pointer-events: none;
        }

        .product-card:hover::after {
            opacity: 1;
        }

        @keyframes rotate {
            100% { transform: rotate(360deg); }
        }

        /* Professional Badge */
        .certification-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 10px;
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid rgba(255, 215, 0, 0.3);
            border-radius: 4px;
            font-size: 0.7rem;
            color: var(--accent-gold);
            margin-top: 10px;
        }

        .product-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(10, 22, 40, 0.7);
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            transition: opacity var(--transition-base);
        }

        .product-image:hover .product-overlay {
            opacity: 1;
        }

        .view-btn {
            padding: 12px 30px;
            background: linear-gradient(135deg, var(--accent-orange), var(--accent-gold));
            color: var(--text-white);
            border: none;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 600;
            cursor: pointer;
            transition: transform var(--transition-base);
        }

        .view-btn:hover {
            transform: scale(1.1);
        }

        .product-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent-orange);
            text-decoration: none;
            font-size: 0.9rem;
            font-weight: 600;
            transition: gap var(--transition-base);
        }

        .product-link:hover {
            gap: 15px;
        }

        /* Gallery Section */
        .gallery {
            background: var(--gradient-end);
            padding: 80px 20px;
        }

        .gallery-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            grid-template-rows: repeat(2, 260px);
            gap: 22px;
            max-width: 1400px;
            margin: 0 auto;
        }

        .gallery-item {
            position: relative;
            border-radius: 20px;
            overflow: hidden;
            cursor: pointer;
            transition: all var(--transition-slow);
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
        }

        .gallery-item:hover {
            transform: scale(1.03);
            box-shadow: 0 25px 70px rgba(0, 0, 0, 0.45);
        }

        .gallery-item.large {
            grid-column: span 2;
            grid-row: span 2;
        }

        .gallery-item img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .gallery-item:hover img {
            transform: scale(1.08);
        }

        .gallery-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            padding: 40px 24px 24px;
            background: linear-gradient(180deg, transparent 0%, rgba(10, 22, 40, 0.7) 40%, rgba(10, 22, 40, 0.95) 100%);
            opacity: 0;
            transition: all var(--transition-base);
            transform: translateY(10px);
        }

        .gallery-item:hover .gallery-overlay {
            opacity: 1;
            transform: translateY(0);
        }

        .gallery-title {
            font-family: var(--font-heading);
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 8px;
            letter-spacing: 0.2px;
        }

        .gallery-category {
            font-size: 0.88rem;
            color: var(--accent-gold);
            font-weight: 500;
        }

        /* Lightbox */
        .lightbox {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(10, 22, 40, 0.95);
            z-index: 3000;
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            visibility: hidden;
            transition: all var(--transition-base);
            padding: 20px;
        }

        .lightbox.active {
            opacity: 1;
            visibility: visible;
        }

        .lightbox-content {
            max-width: 90%;
            max-height: 90%;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .lightbox-content img,
        .lightbox-content video {
            max-width: 100%;
            max-height: 85vh;
            border-radius: 10px;
            box-shadow: 0 20px 80px rgba(0, 0, 0, 0.5);
            object-fit: contain;
        }

        .lightbox-close {
            position: absolute;
            top: -50px;
            right: 0;
            width: 45px;
            height: 45px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            font-size: 1.5rem;
            color: var(--text-white);
            transition: all var(--transition-base);
            min-width: 45px;
            min-height: 45px;
        }

        .lightbox-close:hover {
            background: var(--accent-orange);
            transform: rotate(90deg);
        }

        .lightbox-nav {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 50px;
            height: 50px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            font-size: 1.5rem;
            color: var(--text-white);
            transition: all var(--transition-base);
            min-width: 50px;
            min-height: 50px;
        }

        .lightbox-nav:hover {
            background: var(--accent-orange);
        }

        .lightbox-prev {
            left: 30px;
        }

        .lightbox-next {
            right: 30px;
        }
        
        @media (max-width: 768px) {
            .lightbox {
                padding: 15px;
            }
            
            .lightbox-content {
                max-width: 95%;
                max-height: 85vh;
            }
            
            .lightbox-close {
                top: -45px;
                width: 40px;
                height: 40px;
                font-size: 1.3rem;
                min-width: 40px;
                min-height: 40px;
            }
            
            .lightbox-nav {
                width: 40px;
                height: 40px;
                font-size: 1.2rem;
                min-width: 40px;
                min-height: 40px;
            }
            
            .lightbox-prev {
                left: 10px;
            }
            
            .lightbox-next {
                right: 10px;
            }
        }
        
        @media (max-width: 480px) {
            .lightbox-nav {
                display: none;
            }
            
            .lightbox-close {
                top: -40px;
                right: 0;
                width: 36px;
                height: 36px;
                font-size: 1.2rem;
                min-width: 36px;
                min-height: 36px;
            }
        }

        /* Technology Section */
        .technology {
            background: var(--gradient-end);
            position: relative;
            overflow: hidden;
        }

        .tech-bg-pattern {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: 
                radial-gradient(circle at 20% 50%, rgba(255, 107, 53, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(255, 215, 0, 0.1) 0%, transparent 50%);
            pointer-events: none;
        }

        .tech-content {
            max-width: 1400px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }

        .tech-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
            margin-bottom: 80px;
        }

        .tech-card {
            background: rgba(10, 22, 40, 0.8);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            padding: 40px;
            transition: all var(--transition-slow);
        }

        .tech-card:hover {
            border-color: var(--accent-gold);
            transform: translateY(-10px);
            box-shadow: 0 20px 60px rgba(255, 215, 0, 0.15);
        }

        .tech-number {
            font-family: var(--font-heading);
            font-size: 4rem;
            font-weight: 800;
            color: var(--accent-orange);
            opacity: 0.3;
            margin-bottom: 20px;
        }

        .tech-title {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 15px;
            color: var(--text-white);
        }

        .tech-desc {
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.7;
        }

        .tech-advantages {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }

        .advantage-item {
            text-align: center;
            padding: 30px;
            background: rgba(30, 58, 95, 0.2);
            border-radius: 15px;
            transition: all var(--transition-base);
        }

        .advantage-item:hover {
            background: rgba(255, 107, 53, 0.1);
            transform: scale(1.05);
        }

        .advantage-icon {
            font-size: 3rem;
            margin-bottom: 20px;
        }

        .advantage-title {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 10px;
        }

        .advantage-value {
            font-size: 2rem;
            font-weight: 700;
            color: var(--accent-gold);
        }

        /* News Section */
        .news {
            background: linear-gradient(180deg, var(--gradient-end) 0%, var(--gradient-start) 100%);
            padding: 80px 0;
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 35px;
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .news-card {
            background: rgba(30, 58, 95, 0.45);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 24px;
            overflow: hidden;
            transition: all var(--transition-slow);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
        }

        .news-card:hover {
            transform: translateY(-12px);
            border-color: var(--accent-orange);
            box-shadow: 0 25px 60px rgba(255, 107, 53, 0.25);
            background: rgba(30, 58, 95, 0.55);
        }

        .news-image {
            height: 220px;
            position: relative;
            overflow: hidden;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary-blue));
        }

        .news-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .news-image img[src=""] {
            opacity: 0;
        }

        .news-card:hover .news-image img {
            transform: scale(1.08);
        }

        .news-category {
            position: absolute;
            top: 16px;
            left: 16px;
            padding: 9px 18px;
            background: linear-gradient(135deg, var(--accent-gold), #ffb800);
            color: var(--primary-dark);
            font-size: 0.78rem;
            font-weight: 700;
            border-radius: 25px;
            box-shadow: 0 2px 10px rgba(255, 215, 0, 0.4);
            z-index: 2;
        }

        .news-content {
            padding: 28px;
        }

        .news-date {
            font-size: 0.88rem;
            color: var(--accent-orange);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 500;
        }

        .news-date::before {
            content: '';
            width: 4px;
            height: 4px;
            background: var(--accent-orange);
            border-radius: 50%;
        }

        .news-title {
            font-family: var(--font-heading);
            font-size: 1.25rem;
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--text-white);
            line-height: 1.45;
            letter-spacing: 0.3px;
            transition: color var(--transition-base);
            cursor: pointer;
        }

        .news-title:hover {
            color: var(--accent-gold);
        }

        .news-excerpt {
            font-size: 0.92rem;
            color: #c0c0c0;
            line-height: 1.75;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-loading {
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 350px;
        }

        .news-empty {
            grid-column: span 3;
            text-align: center;
            padding: 60px 20px;
            background: rgba(30, 58, 95, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
        }

        .empty-text {
            color: var(--text-light);
            font-size: 1.1rem;
        }

        .gallery-loading {
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(30, 58, 95, 0.3);
        }

        .loading-text {
            color: var(--text-light);
            font-size: 0.95rem;
        }

        /* Cases Section */
        .cases {
            background: var(--gradient-start);
        }

        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
            max-width: 1400px;
            margin: 0 auto;
        }

        .case-card {
            background: rgba(30, 58, 95, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            padding: 40px;
            text-align: center;
            transition: all var(--transition-slow);
        }

        .case-card:hover {
            transform: translateY(-10px);
            border-color: var(--accent-gold);
            box-shadow: 0 20px 60px rgba(255, 215, 0, 0.15);
        }

        .case-logo {
            width: 100px;
            height: 100px;
            background: linear-gradient(135deg, var(--accent-orange), var(--accent-gold));
            border-radius: 50%;
            margin: 0 auto 25px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-white);
        }

        .case-title {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 15px;
            color: var(--text-white);
        }

        .case-industry {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid var(--accent-gold);
            border-radius: 20px;
            font-size: 0.8rem;
            color: var(--accent-gold);
            margin-bottom: 20px;
        }

        .case-desc {
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .case-stats {
            display: flex;
            justify-content: center;
            gap: 30px;
        }

        .case-stat {
            text-align: center;
        }

        .case-stat-value {
            font-family: var(--font-heading);
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--accent-orange);
        }

        .case-stat-label {
            font-size: 0.8rem;
            color: var(--text-light);
        }

        /* Contact Section */
        .contact {
            background: linear-gradient(180deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .contact-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 80px;
            max-width: 1400px;
            margin: 0 auto;
        }

        .contact-info h3 {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            margin-bottom: 30px;
            color: var(--text-white);
            letter-spacing: 2px;
        }

        .contact-info p {
            font-size: 1.05rem;
            color: var(--text-light);
            margin-bottom: 40px;
            line-height: 1.8;
        }

        .contact-details {
            display: flex;
            flex-direction: column;
            gap: 25px;
        }

        .contact-item {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .contact-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, var(--accent-orange), var(--accent-gold));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            flex-shrink: 0;
        }

        .contact-text h4 {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 5px;
        }

        .contact-text p {
            font-size: 0.95rem;
            color: var(--text-light);
            margin: 0;
        }

        .contact-form {
            background: rgba(30, 58, 95, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            padding: 50px;
            width: 100%;
        }

        .form-group {
            margin-bottom: 25px;
        }

        .form-group label {
            display: block;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 10px;
        }

        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 15px 20px;
            background: rgba(10, 22, 40, 0.8);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 10px;
            color: var(--text-white);
            font-size: 1rem;
            font-family: var(--font-body);
            transition: all var(--transition-base);
            -webkit-appearance: none;
            -moz-appearance: none;
            appearance: none;
        }

        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--accent-orange);
            box-shadow: 0 0 20px rgba(255, 107, 53, 0.2);
        }
        
        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: rgba(176, 176, 176, 0.6);
        }
        
        .form-group textarea {
            resize: vertical;
            min-height: 120px;
            max-height: 300px;
        }
        
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        
        @media (max-width: 576px) {
            .form-row {
                grid-template-columns: 1fr;
                gap: 0;
            }
            
            .form-group {
                margin-bottom: 20px;
            }
            
            .contact-form {
                padding: 30px 20px;
            }
            
            .form-group input,
            .form-group textarea {
                padding: 12px 15px;
                font-size: 16px;
            }
        }

        /* ========== ROI收益计算器样式 ========== */
        .roi-calculator {
            padding: 100px 60px;
            background: linear-gradient(135deg, rgba(13, 27, 42, 0.95) 0%, rgba(27, 38, 59, 0.95) 100%);
            position: relative;
        }

        .roi-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            max-width: 1200px;
            margin: 50px auto 0;
        }

        .roi-form {
            background: rgba(30, 58, 95, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            padding: 40px;
        }

        .roi-input-group {
            margin-bottom: 30px;
        }

        .roi-input-group label {
            display: block;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-light);
            margin-bottom: 12px;
        }

        .roi-input-group input[type="number"] {
            width: 100%;
            padding: 15px 20px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 10px;
            color: var(--text-white);
            font-size: 1.1rem;
            margin-bottom: 15px;
            transition: all var(--transition-base);
        }

        .roi-input-group input[type="number"]:focus {
            outline: none;
            border-color: var(--accent-orange);
            background: rgba(255, 107, 53, 0.1);
        }

        .range-slider input[type="range"] {
            width: 100%;
            height: 8px;
            border-radius: 4px;
            background: rgba(255, 255, 255, 0.1);
            -webkit-appearance: none;
            appearance: none;
            cursor: pointer;
        }

        .range-slider input[type="range"]::-webkit-slider-thumb {
            -webkit-appearance: none;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--accent-orange);
            cursor: pointer;
            box-shadow: 0 4px 10px rgba(255, 107, 53, 0.4);
        }

        .range-slider input[type="range"]::-moz-range-thumb {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--accent-orange);
            cursor: pointer;
            border: none;
            box-shadow: 0 4px 10px rgba(255, 107, 53, 0.4);
        }

        .roi-results {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .result-card {
            background: rgba(30, 58, 95, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 16px;
            padding: 30px;
            text-align: center;
            transition: all var(--transition-base);
        }

        .result-card.highlight {
            background: linear-gradient(135deg, rgba(255, 107, 53, 0.2) 0%, rgba(255, 215, 0, 0.2) 100%);
            border-color: var(--accent-orange);
            grid-column: span 2;
        }

        .result-icon {
            font-size: 2.5rem;
            margin-bottom: 15px;
        }

        .result-value {
            font-family: var(--font-heading);
            font-size: 3rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 10px;
            transition: transform 0.3s ease;
        }

        .result-card.highlight .result-value {
            font-size: 4.5rem;
            background: linear-gradient(135deg, var(--accent-orange), var(--accent-gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .result-label {
            font-size: 0.95rem;
            color: var(--text-light);
        }

        .roi-cta {
            text-align: center;
            margin-top: 50px;
        }

        .roi-cta p {
            font-size: 1.1rem;
            color: var(--text-light);
            margin-bottom: 20px;
        }

        /* ========== 动态客户评价弹幕墙样式 ========== */
        .testimonials-marquee {
            padding: 60px 0;
            background: var(--gradient-end);
            overflow: hidden;
        }

        .marquee-container {
            position: relative;
            width: 100%;
        }

        .marquee-track {
            display: flex;
            gap: 30px;
            animation: marquee 40s linear infinite;
            padding: 20px 0;
        }

        @keyframes marquee {
            0% { transform: translateX(0); }
            100% { transform: translateX(-50%); }
        }

        .testimonial-item {
            flex-shrink: 0;
            background: rgba(30, 58, 95, 0.4);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 16px;
            padding: 30px;
            min-width: 400px;
            max-width: 500px;
            transition: all var(--transition-base);
        }

        .testimonial-item:hover {
            transform: translateY(-5px);
            border-color: var(--accent-orange);
            box-shadow: 0 10px 30px rgba(255, 107, 53, 0.2);
        }

        .testimonial-content {
            font-size: 1.1rem;
            line-height: 1.7;
            color: var(--text-white);
            margin-bottom: 15px;
        }

        .testimonial-author {
            font-size: 0.95rem;
            color: var(--accent-gold);
        }

        /* ========== 技术资料下载中心样式 ========== */
        .resources-center {
            padding: 100px 60px;
            background: var(--gradient-start);
        }

        .resources-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            max-width: 1400px;
            margin: 50px auto 0;
        }

        .resource-card {
            background: rgba(30, 58, 95, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 16px;
            padding: 30px;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 20px;
            transition: all var(--transition-base);
        }

        .resource-card:hover {
            transform: translateY(-5px);
            border-color: var(--accent-orange);
            box-shadow: 0 10px 30px rgba(255, 107, 53, 0.2);
        }

        .resource-icon {
            font-size: 3rem;
        }

        .resource-info {
            flex: 1;
        }

        .resource-info h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 10px;
        }

        .resource-info p {
            font-size: 0.95rem;
            color: var(--text-light);
            margin-bottom: 8px;
        }

        .resource-format {
            display: inline-block;
            padding: 4px 12px;
            background: rgba(255, 107, 53, 0.2);
            border-radius: 20px;
            font-size: 0.85rem;
            color: var(--accent-orange);
        }

        .download-btn {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 24px;
            background: transparent;
            border: 2px solid var(--accent-orange);
            border-radius: 50px;
            color: var(--accent-orange);
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition-base);
            width: 100%;
            justify-content: center;
            min-height: 48px;
        }

        .download-btn:hover {
            background: var(--accent-orange);
            color: var(--text-white);
        }

        /* ========== 智能选型问答样式 ========== */
        .smart-selector {
            padding: 100px 60px;
            background: linear-gradient(180deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
        }

        .selector-container {
            max-width: 900px;
            margin: 50px auto 0;
        }

        .selector-step {
            background: rgba(30, 58, 95, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            padding: 50px;
            text-align: center;
        }

        .selector-step h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 40px;
        }

        .selector-options {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .selector-option {
            padding: 25px 20px;
            background: rgba(255, 255, 255, 0.05);
            border: 2px solid rgba(255, 255, 255, 0.1);
            border-radius: 12px;
            color: var(--text-white);
            font-size: 1.1rem;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition-base);
            min-height: 48px;
        }

        .selector-option:hover,
        .selector-option.selected {
            background: rgba(255, 107, 53, 0.2);
            border-color: var(--accent-orange);
            color: var(--accent-gold);
        }

        .selector-result {
            background: rgba(30, 58, 95, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            padding: 50px;
        }

        .result-header h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--text-white);
            text-align: center;
            margin-bottom: 30px;
        }

        .recommended-products {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
            margin: 30px 0;
        }

        .product-recommendation {
            background: rgba(255, 107, 53, 0.1);
            border: 2px solid var(--accent-orange);
            border-radius: 16px;
            padding: 30px;
        }

        .product-recommendation h4 {
            font-size: 1.3rem;
            color: var(--text-white);
            margin-bottom: 15px;
        }

        .product-recommendation p {
            color: var(--text-light);
            margin-bottom: 20px;
        }

        .product-stats {
            display: flex;
            gap: 20px;
        }

        .product-stat {
            flex: 1;
            text-align: center;
            padding: 15px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 10px;
        }

        .product-stat-value {
            font-size: 1.5rem;
            color: var(--accent-gold);
            font-weight: bold;
        }

        .product-stat-label {
            font-size: 0.9rem;
            color: var(--text-light);
        }

        .result-actions {
            display: flex;
            gap: 20px;
            justify-content: center;
            margin-top: 40px;
        }

        /* ========== 响应式适配 ========== */
        @media (max-width: 1200px) {
            .roi-content {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .resources-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .recommended-products {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .roi-calculator,
            .resources-center,
            .smart-selector {
                padding: 60px 20px;
            }

            .roi-form {
                padding: 25px;
            }

            .resources-grid {
                grid-template-columns: 1fr;
            }

            .selector-options {
                grid-template-columns: repeat(2, 1fr);
            }

            .selector-step {
                padding: 30px 20px;
            }

            .result-card.highlight {
                grid-column: span 1;
            }

            .result-value {
                font-size: 2.5rem;
            }

            .result-card.highlight .result-value {
                font-size: 3rem;
            }

            .testimonial-item {
                min-width: 300px;
            }

            .product-stats {
                flex-direction: column;
            }
        }

        @media (max-width: 480px) {
            .selector-options {
                grid-template-columns: 1fr;
            }

            .result-actions {
                flex-direction: column;
            }

            .result-actions .btn {
                width: 100%;
            }
        }

        /* Footer */
        .footer {
            background: var(--primary-dark);
            padding: 80px 60px 30px;
        }

        .footer-content {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 60px;
            max-width: 1400px;
            margin: 0 auto 60px;
        }

        .footer-brand h3 {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 20px;
            letter-spacing: 2px;
        }

        .footer-brand p {
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 25px;
        }

        .footer-social {
            display: flex;
            gap: 15px;
        }

        .social-link {
            width: 45px;
            height: 45px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--text-white);
            text-decoration: none;
            transition: all var(--transition-base);
        }

        .social-link:hover {
            background: var(--accent-orange);
            transform: translateY(-5px);
        }

        .footer-links h4 {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 25px;
        }

        .footer-links ul {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 12px;
        }

        .footer-links a {
            color: var(--text-light);
            text-decoration: none;
            font-size: 0.9rem;
            transition: color var(--transition-base);
        }

        .footer-links a:hover {
            color: var(--accent-gold);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 30px;
            text-align: center;
        }

        .footer-copyright {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-bottom: 15px;
        }

        .footer-copyright a {
            color: var(--text-light);
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .footer-copyright a:hover {
            color: var(--accent-gold);
        }

        .footer-beian {
            display: flex;
            justify-content: center;
            align-items: center;
            margin-top: 10px;
        }

        .footer-beian a {
            display: inline-flex;
            align-items: center;
            text-decoration: none;
            color: #939393;
            font-size: 0.85rem;
            transition: color 0.3s ease;
        }

        .footer-beian a:hover {
            color: var(--accent-gold);
        }

        .footer-beian img {
            width: 20px;
            height: 20px;
            margin-right: 5px;
        }

        .footer-beian p {
            margin: 0;
            line-height: 20px;
        }

        /* Animations */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes fadeInDown {
            from {
                opacity: 0;
                transform: translateY(-30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes bounce {
            0%, 20%, 50%, 80%, 100% {
                transform: translateX(-50%) translateY(0);
            }
            40% {
                transform: translateX(-50%) translateY(-20px);
            }
            60% {
                transform: translateX(-50%) translateY(-10px);
            }
        }

        @keyframes pulse {
            0%, 100% {
                opacity: 1;
            }
            50% {
                opacity: 0.5;
            }
        }

        .animate-on-scroll {
            opacity: 0;
            transform: translateY(50px);
            transition: all 0.8s ease;
        }

        .animate-on-scroll.animated {
            opacity: 1;
            transform: translateY(0);
        }

        /* Video cards should always be visible and interactive */
        .video-card.animate-on-scroll {
            opacity: 1;
            transform: translateY(0);
        }

        .video-card.animate-on-scroll video {
            pointer-events: auto;
        }

        /* Product cards should always be visible */
        .product-card.animate-on-scroll {
            opacity: 1;
            transform: translateY(0);
        }

        /* Value cards should always be visible */
        .value-card.animate-on-scroll {
            opacity: 1;
            transform: translateY(0);
        }

        /* Responsive */
        @media (max-width: 1400px) {
            .values-grid,
            .products-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 1200px) {
            .values-grid,
            .products-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .tech-grid,
            .tech-advantages {
                grid-template-columns: repeat(2, 1fr);
            }

            .video-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                padding: 0 30px;
            }

            .gallery-grid {
                grid-template-columns: repeat(2, 1fr);
                grid-template-rows: repeat(3, 200px);
            }

            .gallery-item.large {
                grid-column: span 2;
                grid-row: span 1;
            }

            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .hero-title {
                font-size: 3rem;
            }
            
            .section-title {
                font-size: 2.5rem;
            }
            
            .about-content {
                gap: 50px;
            }
            
            .about-image-main {
                height: 400px;
            }
            
            .contact-content {
                gap: 50px;
            }
        }

        @media (max-width: 992px) {
            section, .video-showcase, .gallery {
                padding: 60px 30px;
            }

            .navbar {
                padding: 15px 30px;
            }

            .nav-links {
                display: none;
            }

            .mobile-menu-btn {
                display: flex;
            }

            .hero-title {
                font-size: 2.5rem;
                letter-spacing: 2px;
            }

            .hero-subtitle {
                font-size: 1.1rem;
            }
            
            .hero-buttons {
                flex-direction: column;
                align-items: center;
                gap: 20px;
            }
            
            .btn {
                width: 100%;
                max-width: 300px;
                justify-content: center;
            }

            .section-title {
                font-size: 2rem;
            }
            
            .section-header {
                margin-bottom: 50px;
            }

            .values-grid,
            .products-grid,
            .tech-grid,
            .tech-advantages,
            .news-grid,
            .cases-grid {
                grid-template-columns: 1fr;
                gap: 25px;
            }

            .about-content,
            .contact-content {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .about-image {
                order: -1;
            }

            .about-image-badge {
                right: 0;
                bottom: -20px;
                width: 150px;
                height: 150px;
            }

            .badge-number {
                font-size: 2.5rem;
            }

            .about-stats {
                grid-template-columns: repeat(3, 1fr);
                gap: 20px;
            }

            .stat-number {
                font-size: 1.8rem;
            }

            .form-row {
                grid-template-columns: 1fr;
            }

            .contact-form {
                padding: 30px;
            }

            .gallery-grid {
                grid-template-columns: 1fr;
                grid-template-rows: auto;
            }

            .gallery-item.large {
                grid-column: span 1;
                grid-row: span 1;
            }

            .gallery-item {
                height: 200px;
            }

            .footer-content {
                grid-template-columns: 1fr;
                gap: 30px;
            }

            .footer {
                padding: 50px 30px 20px;
            }
            
            .lightbox-nav {
                display: none;
            }
            
            .about-image-main {
                height: 350px;
            }
            
            .video-card {
                margin-bottom: 30px;
            }

            .video-info {
                padding: 20px;
            }

            .video-title {
                font-size: 1.1rem;
            }
            
            .product-card {
                margin-bottom: 20px;
            }
            
            .news-card {
                margin-bottom: 20px;
            }
            
            .case-card {
                margin-bottom: 20px;
            }
        }

        @media (max-width: 768px) {
            section, .video-showcase, .gallery {
                padding: 50px 20px;
            }

            .navbar {
                padding: 12px 20px;
            }
            
            .navbar.scrolled {
                padding: 10px 20px;
            }

            .nav-links {
                display: none;
            }

            .mobile-menu-btn {
                display: flex;
            }
            
            .logo-icon {
                width: 35px;
                height: 35px;
                font-size: 1rem;
            }
            
            .logo span {
                font-size: 1.2rem;
            }

            .hero-title {
                font-size: 2rem;
                letter-spacing: 1px;
            }

            .hero-subtitle {
                font-size: 1rem;
                margin-bottom: 30px;
            }
            
            .hero-badge {
                font-size: 0.8rem;
                padding: 8px 20px;
                margin-bottom: 20px;
            }
            
            .hero-buttons {
                flex-direction: column;
                align-items: center;
                gap: 15px;
            }
            
            .btn {
                padding: 15px 30px;
                font-size: 0.95rem;
            }

            .section-title {
                font-size: 1.8rem;
                margin-bottom: 15px;
            }
            
            .section-desc {
                font-size: 1rem;
            }
            
            .section-tag {
                font-size: 0.8rem;
                padding: 6px 20px;
            }
            
            .section-header {
                margin-bottom: 40px;
            }

            .values-grid,
            .products-grid,
            .tech-grid,
            .tech-advantages,
            .news-grid,
            .cases-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            
            .value-card,
            .product-card,
            .tech-card,
            .news-card,
            .case-card {
                padding: 25px 20px;
            }

            .about-content,
            .contact-content {
                grid-template-columns: 1fr;
                gap: 30px;
            }

            .about-image {
                order: -1;
            }
            
            .about-image-main {
                height: 300px;
            }
            
            .about-image-badge {
                right: 10px;
                bottom: -15px;
                width: 120px;
                height: 120px;
            }
            
            .badge-number {
                font-size: 2rem;
            }
            
            .badge-text {
                font-size: 0.75rem;
            }

            .about-stats {
                grid-template-columns: repeat(3, 1fr);
                gap: 15px;
            }

            .stat-number {
                font-size: 1.5rem;
            }
            
            .stat-label {
                font-size: 0.8rem;
            }
            
            .about-text h3 {
                font-size: 1.8rem;
                margin-bottom: 20px;
            }
            
            .about-text p {
                font-size: 0.95rem;
                margin-bottom: 20px;
            }
            
            .tech-number {
                font-size: 3rem;
            }
            
            .tech-title {
                font-size: 1.3rem;
            }
            
            .advantage-icon {
                font-size: 2.5rem;
            }
            
            .advantage-title {
                font-size: 1rem;
            }
            
            .advantage-value {
                font-size: 1.8rem;
            }

            .form-row {
                grid-template-columns: 1fr;
            }

            .contact-form {
                padding: 25px 20px;
            }
            
            .contact-info h3 {
                font-size: 1.8rem;
                margin-bottom: 20px;
            }
            
            .contact-info p {
                font-size: 0.95rem;
                margin-bottom: 30px;
            }
            
            .contact-item {
                gap: 15px;
            }
            
            .contact-icon {
                width: 50px;
                height: 50px;
                font-size: 1.3rem;
            }
            
            .contact-text h4 {
                font-size: 1rem;
            }
            
            .contact-text p {
                font-size: 0.9rem;
            }
            
            .form-group label {
                font-size: 0.85rem;
            }
            
            .form-group input,
            .form-group textarea {
                padding: 12px 15px;
                font-size: 0.95rem;
            }
            
            .form-group textarea {
                min-height: 100px;
            }
            
            .contact-form h3 {
                font-size: 1.3rem;
                margin-bottom: 20px;
            }

            .gallery-grid {
                grid-template-columns: 1fr;
                grid-template-rows: auto;
            }

            .gallery-item.large {
                grid-column: span 1;
                grid-row: span 1;
            }

            .gallery-item {
                height: 180px;
            }
            
            .gallery-overlay {
                padding: 20px 15px 15px;
            }
            
            .gallery-title {
                font-size: 1rem;
            }
            
            .gallery-category {
                font-size: 0.8rem;
            }

            .footer-content {
                grid-template-columns: 1fr;
                gap: 25px;
            }

            .footer {
                padding: 40px 20px 15px;
            }
            
            .footer-brand h3 {
                font-size: 1.3rem;
            }
            
            .footer-brand p {
                font-size: 0.9rem;
            }
            
            .footer-links h4 {
                font-size: 1rem;
                margin-bottom: 20px;
            }
            
            .footer-links a {
                font-size: 0.85rem;
            }
            
            .footer-social {
                justify-content: flex-start;
            }
            
            .social-link {
                width: 40px;
                height: 40px;
            }
            
            .footer-bottom {
                padding-top: 20px;
            }
            
            .footer-copyright {
                font-size: 0.8rem;
                margin-bottom: 10px;
            }
            
            .footer-beian {
                margin-top: 8px;
            }
            
            .footer-beian a {
                font-size: 0.75rem;
            }
            
            .footer-beian img {
                width: 18px;
                height: 18px;
            }
            
            .lightbox-nav {
                display: none;
            }
            
            .lightbox-close {
                top: -40px;
                right: 0;
                width: 40px;
                height: 40px;
                font-size: 1.3rem;
            }
            
            .lightbox-content img,
            .lightbox-content video {
                max-width: 95%;
                max-height: 70vh;
            }
            
            .video-card {
                margin-bottom: 25px;
            }
            
            .video-info {
                padding: 20px;
            }
            
            .video-title {
                font-size: 1.2rem;
            }
            
            .video-desc {
                font-size: 0.9rem;
            }
            
            .product-image {
                height: 180px;
            }
            
            .product-content {
                padding: 20px;
            }
            
            .product-title {
                font-size: 1.1rem;
            }
            
            .product-desc {
                font-size: 0.85rem;
            }
            
            .product-features li {
                font-size: 0.8rem;
            }
            
            .news-image {
                height: 180px;
            }
            
            .news-content {
                padding: 20px;
            }
            
            .news-title {
                font-size: 1.1rem;
            }
            
            .news-excerpt {
                font-size: 0.85rem;
            }
            
            .case-logo {
                width: 80px;
                height: 80px;
                font-size: 1.5rem;
            }
            
            .case-title {
                font-size: 1.2rem;
            }
            
            .case-desc {
                font-size: 0.9rem;
            }
            
            .case-stat-value {
                font-size: 1.5rem;
            }
        }

        /* Extra Small Devices */
        @media (max-width: 480px) {
            section, .video-showcase, .gallery {
                padding: 40px 15px;
            }
            
            .navbar {
                padding: 10px 15px;
            }
            
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }
            
            .logo span {
                font-size: 1.1rem;
            }
            
            .mobile-menu {
                width: 90%;
                padding: 80px 25px;
            }
            
            .mobile-menu li {
                margin-bottom: 20px;
            }
            
            .mobile-menu a {
                font-size: 1.2rem;
            }
            
            .mobile-menu-close {
                top: 20px;
                right: 20px;
                font-size: 1.8rem;
            }
            
            .hero {
                min-height: 550px;
            }
            
            .hero-title {
                font-size: 1.8rem;
                letter-spacing: 1px;
            }
            
            .hero-subtitle {
                font-size: 0.95rem;
            }
            
            .hero-badge {
                font-size: 0.75rem;
                padding: 6px 15px;
            }
            
            .btn {
                padding: 14px 25px;
                font-size: 0.9rem;
            }
            
            .section-title {
                font-size: 1.6rem;
                letter-spacing: 1px;
            }
            
            .section-desc {
                font-size: 0.95rem;
            }
            
            .section-tag {
                font-size: 0.75rem;
                padding: 5px 15px;
            }
            
            .about-image-main {
                height: 250px;
            }
            
            .about-image-badge {
                width: 100px;
                height: 100px;
                bottom: -10px;
            }
            
            .badge-number {
                font-size: 1.8rem;
            }
            
            .badge-text {
                font-size: 0.7rem;
            }
            
            .about-stats {
                gap: 10px;
            }
            
            .stat-number {
                font-size: 1.3rem;
            }
            
            .stat-label {
                font-size: 0.75rem;
            }
            
            .about-text h3 {
                font-size: 1.6rem;
            }
            
            .value-icon {
                width: 60px;
                height: 60px;
                font-size: 1.5rem;
            }
            
            .value-title {
                font-size: 1.1rem;
            }
            
            .value-desc {
                font-size: 0.85rem;
            }
            
            .product-image {
                height: 160px;
            }
            
            .product-badge {
                font-size: 0.7rem;
                padding: 6px 12px;
            }
            
            .tech-number {
                font-size: 2.5rem;
            }
            
            .advantage-icon {
                font-size: 2rem;
            }
            
            .advantage-value {
                font-size: 1.5rem;
            }
            
            .news-image {
                height: 160px;
            }
            
            .case-logo {
                width: 70px;
                height: 70px;
                font-size: 1.3rem;
            }
            
            .case-stats {
                gap: 20px;
            }
            
            .gallery-item {
                height: 150px;
            }
            
            .contact-icon {
                width: 45px;
                height: 45px;
                font-size: 1.2rem;
            }
            
            .contact-form {
                padding: 20px 15px;
            }
            
            .footer-brand h3 {
                font-size: 1.2rem;
            }
            
            .social-link {
                width: 38px;
                height: 38px;
            }
        }

        /* Landscape Mode on Mobile */
        @media (max-height: 500px) and (orientation: landscape) {
            .hero {
                min-height: auto;
                padding: 100px 20px;
            }
            
            .hero-content {
                padding: 20px;
            }
            
            .hero-badge {
                margin-bottom: 15px;
            }
            
            .hero-title {
                font-size: 2rem;
                margin-bottom: 10px;
            }
            
            .hero-subtitle {
                font-size: 1rem;
                margin-bottom: 20px;
            }
            
            .hero-buttons {
                gap: 15px;
            }
            
            .btn {
                padding: 12px 25px;
                font-size: 0.9rem;
            }
            
            .scroll-indicator {
                display: none;
            }
        }

        /* High DPI Displays */
        @media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
            .hero-badge,
            .section-tag,
            .product-badge,
            .news-category,
            .case-industry {
                border-width: 0.5px;
            }
        }

        /* Reduced Motion for Accessibility */
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
            
            html {
                scroll-behavior: auto;
            }
        }

        /* iPhone X and newer (notched devices) */
        @supports (padding: max(0px)) {
            .navbar {
                padding-left: max(20px, env(safe-area-inset-left));
                padding-right: max(20px, env(safe-area-inset-right));
            }
            
            .back-to-top {
                right: max(30px, env(safe-area-inset-right));
                bottom: max(30px, env(safe-area-inset-bottom));
            }
        }

        /* iPad landscape */
        @media (min-width: 1024px) and (max-height: 768px) and (orientation: landscape) {
            section {
                padding: 80px 40px;
            }
            
            .hero-title {
                font-size: 3rem;
            }
            
            .about-image-main {
                height: 350px;
            }
        }

        /* Larger screens (2K, 4K) */
        @media (min-width: 1920px) {
            section {
                padding: 150px 80px;
            }
            
            .hero-title {
                font-size: 5rem;
            }
            
            .section-title {
                font-size: 3.5rem;
            }
            
            .container {
                max-width: 1600px;
            }
            
            .values-grid,
            .products-grid {
                grid-template-columns: repeat(4, 1fr);
                gap: 40px;
            }
        }

        /* Touch device optimizations */
        @media (hover: none) and (pointer: coarse) {
            .btn {
                min-height: 52px;
            }
            
            .nav-links a {
                padding: 12px 0;
            }
            
            .product-card:hover {
                transform: none;
            }
            
            .product-card:active {
                transform: scale(0.98);
            }
        }

        /* Mobile Menu */
        .mobile-menu {
            position: fixed;
            top: 0;
            right: -100%;
            width: 85%;
            max-width: 400px;
            height: 100vh;
            height: 100dvh;
            height: -webkit-fill-available;
            background: rgba(10, 22, 40, 0.98);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            -moz-backdrop-filter: blur(10px);
            -ms-backdrop-filter: blur(10px);
            z-index: 2000;
            padding: 100px 40px;
            transition: right var(--transition-slow);
            overflow-y: auto;
            -webkit-overflow-scrolling: touch;
            -ms-overflow-style: none;
            scrollbar-width: none;
        }

        .mobile-menu::-webkit-scrollbar {
            display: none;
        }

        .mobile-menu.active {
            right: 0;
        }

        /* Safe area for iOS notch in mobile menu */
        @supports(padding-top: env(safe-area-inset-top)) {
            .mobile-menu {
                padding-top: calc(100px + env(safe-area-inset-top));
            }
            .mobile-menu-close {
                top: calc(30px + env(safe-area-inset-top));
            }
        }

        .mobile-menu-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            height: 100vh;
            background: rgba(0, 0, 0, 0.5);
            z-index: 1999;
            opacity: 0;
            visibility: hidden;
            transition: all var(--transition-base);
            touch-action: none;
        }

        .mobile-menu-overlay.active {
            opacity: 1;
            visibility: visible;
        }

        .mobile-menu ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .mobile-menu li {
            margin-bottom: 15px;
        }

        .mobile-menu a {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text-white);
            text-decoration: none;
            display: block;
            padding: 15px 20px;
            transition: all var(--transition-base);
            min-height: 48px;
            display: flex;
            align-items: center;
            border-radius: 10px;
            background: transparent;
            touch-action: manipulation;
            -webkit-tap-highlight-color: rgba(255, 215, 0, 0.2);
        }

        .mobile-menu a:hover,
        .mobile-menu a:active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.1);
        }

        .mobile-menu-close {
            position: absolute;
            top: 30px;
            right: 30px;
            font-size: 2rem;
            color: var(--text-white);
            cursor: pointer;
            padding: 10px;
            min-width: 48px;
            min-height: 48px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
            transition: all var(--transition-base);
            touch-action: manipulation;
        }

        .mobile-menu-close:hover,
        .mobile-menu-close:active {
            background: rgba(255, 107, 53, 0.8);
            transform: rotate(90deg);
        }