/* CSS Reset & Variables */
        :root {
            --bg-base: #080b11;
            --bg-surface: #111625;
            --bg-card: #171e30;
            --color-primary: #00f2fe;
            --color-secondary: #ff007f;
            --color-accent: #7f00ff;
            --text-main: #ffffff;
            --text-muted: #a0aec0;
            --border-neon: rgba(0, 242, 254, 0.2);
            --border-neon-hover: rgba(255, 0, 127, 0.5);
            --shadow-neon: 0 0 15px rgba(0, 242, 254, 0.15);
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            --container-max-width: 1200px;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            background-color: var(--bg-base);
            color: var(--text-main);
            font-family: var(--font-family);
            line-height: 1.6;
            overflow-x: hidden;
            background-image: 
                radial-gradient(circle at 10% 20%, rgba(127, 0, 255, 0.08) 0%, transparent 40%),
                radial-gradient(circle at 90% 80%, rgba(0, 242, 254, 0.08) 0%, transparent 40%);
            background-attachment: fixed;
        }

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: all 0.3s ease;
        }

        a:hover {
            color: var(--color-secondary);
            text-shadow: 0 0 8px rgba(255, 0, 127, 0.6);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        /* Common Container */
        .container {
            width: 100%;
            max-width: var(--container-max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Section Layout */
        section {
            padding: 80px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

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

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: 1px;
            background: linear-gradient(135deg, var(--text-main) 30%, var(--color-primary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 15px;
            display: inline-block;
        }

        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 600;
            transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
            cursor: pointer;
            border: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            color: #000;
            font-weight: 700;
            box-shadow: 0 4px 15px rgba(0, 242, 254, 0.4);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 242, 254, 0.6);
            color: #000;
        }

        .btn-secondary {
            background: transparent;
            color: var(--color-primary);
            border: 2px solid var(--color-primary);
            box-shadow: 0 0 10px rgba(0, 242, 254, 0.1);
        }

        .btn-secondary:hover {
            background: var(--color-primary);
            color: #000;
            box-shadow: 0 0 20px rgba(0, 242, 254, 0.4);
        }

        /* Navigation Header */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(8, 11, 17, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-neon);
            transition: all 0.3s ease;
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .ai-page-logo {
            height: 40px;
            width: auto;
        }

        .nav-menu {
            display: flex;
            gap: 20px;
            list-style: none;
        }

        .nav-menu li a {
            color: var(--text-muted);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 4px;
        }

        .nav-menu li a:hover,
        .nav-menu li a.active {
            color: var(--color-primary);
            background: rgba(0, 242, 254, 0.05);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            background: none;
            border: none;
            cursor: pointer;
        }

        .menu-toggle span {
            display: block;
            width: 25px;
            height: 2px;
            background-color: var(--text-main);
            transition: all 0.3s ease;
        }

        /* Hero Section (No Image, Neon Text & Visual Cards) */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding-top: 100px;
            background: radial-gradient(circle at center, rgba(17, 22, 37, 0.8) 0%, var(--bg-base) 100%);
            position: relative;
        }

        .hero-inner {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: center;
        }

        .hero-text h1 {
            font-size: 3rem;
            line-height: 1.2;
            margin-bottom: 20px;
            font-weight: 900;
            letter-spacing: -0.5px;
        }

        .hero-text h1 span {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 1.2rem;
            color: var(--text-muted);
            margin-bottom: 35px;
            line-height: 1.8;
        }

        .hero-buttons {
            display: flex;
            gap: 20px;
            margin-bottom: 40px;
        }

        .hero-features {
            display: flex;
            gap: 30px;
        }

        .hero-feat-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.95rem;
            color: var(--text-main);
        }

        .hero-feat-item span {
            color: var(--color-secondary);
            font-size: 1.2rem;
        }

        /* Hero Right: Tech Grid Card (Pure CSS, No Image) */
        .hero-graphic {
            position: relative;
            height: 400px;
            background: linear-gradient(135deg, rgba(23, 30, 48, 0.6) 0%, rgba(17, 22, 37, 0.8) 100%);
            border: 1px solid var(--border-neon);
            border-radius: 20px;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            padding: 30px;
            box-shadow: var(--shadow-neon);
        }

        .hero-graphic::before {
            content: '';
            position: absolute;
            width: 200%;
            height: 200%;
            background-image: 
                linear-gradient(rgba(0, 242, 254, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(0, 242, 254, 0.03) 1px, transparent 1px);
            background-size: 20px 20px;
            top: -50%;
            left: -50%;
            transform: rotate(15deg);
            z-index: 1;
        }

        .graphic-badge {
            background: rgba(255, 0, 127, 0.1);
            color: var(--color-secondary);
            border: 1px solid var(--color-secondary);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 700;
            margin-bottom: 20px;
            z-index: 2;
            animation: pulse 2s infinite;
        }

        .graphic-title {
            font-size: 1.8rem;
            font-weight: 800;
            text-align: center;
            margin-bottom: 15px;
            color: #fff;
            z-index: 2;
            text-shadow: 0 0 10px rgba(255,255,255,0.2);
        }

        .graphic-stats {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
            width: 100%;
            z-index: 2;
        }

        .graphic-stat-card {
            background: rgba(8, 11, 17, 0.8);
            border: 1px solid var(--border-neon);
            border-radius: 12px;
            padding: 15px;
            text-align: center;
        }

        .graphic-stat-num {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--color-primary);
        }

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

        /* Stats Section */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 30px;
        }

        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 16px;
            padding: 30px 20px;
            text-align: center;
            transition: all 0.3s ease;
        }

        .stat-card:hover {
            border-color: var(--color-secondary);
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(255, 0, 127, 0.15);
        }

        .stat-val {
            font-size: 2.8rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 10px;
        }

        .stat-lbl {
            font-size: 1rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* Services Grid */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .service-card {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 16px;
            padding: 35px 25px;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .service-card:hover {
            transform: translateY(-8px);
            border-color: var(--color-primary);
            box-shadow: var(--shadow-neon);
        }

        .service-card::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: linear-gradient(to bottom, var(--color-primary), var(--color-accent));
        }

        .service-icon {
            font-size: 2.5rem;
            margin-bottom: 20px;
            color: var(--color-primary);
        }

        .service-card h3 {
            font-size: 1.4rem;
            margin-bottom: 15px;
            color: var(--text-main);
        }

        .service-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 20px;
        }

        .service-list {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .service-list li {
            font-size: 0.75rem;
            background: rgba(0, 242, 254, 0.08);
            border: 1px solid rgba(0, 242, 254, 0.2);
            color: var(--color-primary);
            padding: 4px 10px;
            border-radius: 12px;
        }

        /* Workflow Steps */
        .workflow-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 30px;
            position: relative;
        }

        .step-card {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 16px;
            padding: 30px 25px;
            position: relative;
            transition: all 0.3s ease;
        }

        .step-card:hover {
            border-color: var(--color-secondary);
        }

        .step-num {
            position: absolute;
            top: -20px;
            left: 20px;
            width: 45px;
            height: 45px;
            background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.2rem;
            box-shadow: 0 0 15px rgba(255, 0, 127, 0.4);
        }

        .step-card h3 {
            margin-top: 15px;
            font-size: 1.25rem;
            margin-bottom: 10px;
        }

        .step-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* Technical Standards */
        .standards-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .standards-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .standard-item {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 12px;
            padding: 20px;
            display: flex;
            gap: 20px;
        }

        .standard-item-num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--color-primary);
        }

        .standard-item-text h4 {
            font-size: 1.1rem;
            margin-bottom: 5px;
        }

        .standard-item-text p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* Case Center & Media Showcase */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .case-card {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 16px;
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .case-card:hover {
            transform: translateY(-5px);
            border-color: var(--color-primary);
        }

        .case-img-container {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: #000;
        }

        .case-img-container img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .case-card:hover .case-img-container img {
            transform: scale(1.05);
        }

        .case-badge {
            position: absolute;
            top: 15px;
            right: 15px;
            background: rgba(0, 0, 0, 0.75);
            color: var(--color-primary);
            border: 1px solid var(--color-primary);
            padding: 4px 12px;
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 600;
        }

        .case-info {
            padding: 25px;
        }

        .case-info h3 {
            font-size: 1.25rem;
            margin-bottom: 10px;
        }

        .case-info p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 15px;
        }

        /* Showcase Banner Area */
        .banner-showcase {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            margin-top: 50px;
        }

        .banner-item {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 16px;
            overflow: hidden;
            position: relative;
        }

        .banner-item img {
            width: 100%;
            height: auto;
            display: block;
        }

        .banner-label {
            position: absolute;
            bottom: 20px;
            left: 20px;
            background: rgba(8, 11, 17, 0.85);
            padding: 10px 20px;
            border-radius: 8px;
            border-left: 3px solid var(--color-secondary);
        }

        /* Comparison Board */
        .comparison-wrap {
            background: var(--bg-card);
            border: 2px solid var(--color-primary);
            box-shadow: var(--shadow-neon);
            border-radius: 20px;
            padding: 40px;
        }

        .comp-header-flex {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
            margin-bottom: 30px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            padding-bottom: 20px;
        }

        .comp-score-big {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .score-num-huge {
            font-size: 3.5rem;
            font-weight: 900;
            color: var(--color-primary);
            line-height: 1;
        }

        .score-stars {
            color: var(--color-secondary);
            font-size: 1.5rem;
        }

        .comp-table-container {
            width: 100%;
            overflow-x: auto;
        }

        .comp-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 600px;
        }

        .comp-table th,
        .comp-table td {
            padding: 16px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .comp-table th {
            color: var(--text-main);
            font-weight: 700;
            background: rgba(0, 242, 254, 0.05);
        }

        .comp-table tr:hover td {
            background: rgba(255, 255, 255, 0.02);
        }

        .cell-highlight {
            color: var(--color-primary);
            font-weight: 600;
        }

        /* Token Pricing */
        .token-pricing-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .price-card {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 16px;
            padding: 30px;
            text-align: center;
            position: relative;
        }

        .price-card.featured {
            border-color: var(--color-secondary);
            box-shadow: 0 0 20px rgba(255, 0, 127, 0.2);
        }

        .price-badge {
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--color-secondary);
            color: #fff;
            padding: 2px 14px;
            border-radius: 12px;
            font-size: 0.8rem;
            font-weight: 700;
        }

        .price-card h3 {
            font-size: 1.5rem;
            margin-bottom: 15px;
        }

        .price-val {
            margin-bottom: 20px;
        }

        .price-val span {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--color-primary);
        }

        .price-features {
            list-style: none;
            margin-bottom: 30px;
            text-align: left;
        }

        .price-features li {
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* Training & Certification */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 25px;
        }

        .train-card {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 16px;
            padding: 25px;
            transition: all 0.3s ease;
        }

        .train-card:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-neon);
        }

        .train-badge {
            background: rgba(0, 242, 254, 0.1);
            color: var(--color-primary);
            padding: 4px 10px;
            border-radius: 6px;
            font-size: 0.75rem;
            display: inline-block;
            margin-bottom: 15px;
        }

        .train-card h3 {
            font-size: 1.15rem;
            margin-bottom: 10px;
        }

        .train-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* FAQ Accordion */
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 12px;
            overflow: hidden;
        }

        .faq-btn {
            width: 100%;
            background: none;
            border: none;
            padding: 20px 25px;
            text-align: left;
            color: var(--text-main);
            font-size: 1.05rem;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .faq-btn::after {
            content: '+';
            font-size: 1.5rem;
            color: var(--color-primary);
        }

        .faq-item.active .faq-btn::after {
            content: '-';
        }

        .faq-content {
            padding: 0 25px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            color: var(--text-muted);
            font-size: 0.95rem;
            background: rgba(0, 0, 0, 0.1);
        }

        .faq-item.active .faq-content {
            padding: 20px 25px;
            max-height: 300px;
        }

        /* Troubleshooting Section */
        .troubleshoot-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .ts-card {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 16px;
            padding: 30px;
        }

        .ts-title {
            color: var(--color-secondary);
            font-size: 1.2rem;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .ts-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .ts-item h4 {
            font-size: 1rem;
            margin-bottom: 5px;
            color: var(--text-main);
        }

        .ts-item p {
            font-size: 0.88rem;
            color: var(--text-muted);
        }

        /* Encyclopedia Term Cloud */
        .terms-flex {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            justify-content: center;
        }

        .term-tag {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            padding: 10px 20px;
            border-radius: 30px;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .term-tag:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-neon);
            color: var(--color-primary);
        }

        /* Customer Reviews */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .review-card {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 16px;
            padding: 30px;
            position: relative;
        }

        .review-text {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            font-style: italic;
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .user-avatar {
            width: 45px;
            height: 45px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            color: #000;
        }

        .user-info h4 {
            font-size: 0.95rem;
            margin-bottom: 2px;
        }

        .user-info span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* Form Area */
        .form-wrap {
            max-width: 600px;
            margin: 0 auto;
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 20px;
            padding: 40px;
            box-shadow: var(--shadow-neon);
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-label {
            display: block;
            margin-bottom: 8px;
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .form-control {
            width: 100%;
            background: rgba(8, 11, 17, 0.6);
            border: 1px solid var(--border-neon);
            border-radius: 8px;
            padding: 12px 16px;
            color: #fff;
            font-size: 0.95rem;
            outline: none;
            transition: all 0.3s ease;
        }

        .form-control:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 10px rgba(0, 242, 254, 0.2);
        }

        /* Articles Box */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .article-card {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 16px;
            padding: 25px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .article-card h3 {
            font-size: 1.15rem;
            margin-bottom: 15px;
        }

        .article-card a {
            font-size: 0.9rem;
            margin-top: 15px;
            display: flex;
            align-items: center;
            gap: 5px;
        }

        /* Contact Details */
        .contact-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
        }

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

        .contact-info-item {
            display: flex;
            align-items: flex-start;
            gap: 15px;
        }

        .contact-info-item h4 {
            font-size: 1.1rem;
            margin-bottom: 5px;
        }

        .contact-info-item p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

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

        .qr-card {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 12px;
            padding: 20px;
            text-align: center;
        }

        .qr-card img {
            width: 120px;
            height: 120px;
            margin: 0 auto 15px;
            border-radius: 8px;
        }

        .qr-card p {
            font-size: 0.85rem;
            font-weight: 600;
        }

        /* Footer & Friends Links */
        footer {
            background: #04060b;
            padding: 60px 0 30px;
            border-top: 1px solid var(--border-neon);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 40px;
            margin-bottom: 50px;
        }

        .footer-col h4 {
            font-size: 1.1rem;
            margin-bottom: 20px;
            position: relative;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 30px;
            height: 2px;
            background: var(--color-primary);
        }

        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links li a {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        .footer-links li a:hover {
            color: var(--color-primary);
        }

        .friends-box {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding: 30px 0;
            text-align: center;
        }

        .friends-box p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 15px;
        }

        .friends-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 15px;
        }

        .friends-links a {
            font-size: 0.85rem;
            background: rgba(255, 255, 255, 0.02);
            padding: 6px 12px;
            border-radius: 4px;
            border: 1px solid rgba(255, 255, 255, 0.05);
            color: var(--text-muted);
        }

        .friends-links a:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        .footer-bottom {
            text-align: center;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 30px;
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        /* Floating Widgets */
        .floating-widgets {
            position: fixed;
            bottom: 40px;
            right: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--bg-card);
            border: 1px solid var(--color-primary);
            box-shadow: var(--shadow-neon);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
        }

        .float-btn:hover {
            background: var(--color-primary);
            color: #000;
            transform: scale(1.1);
        }

        .float-qr {
            position: absolute;
            right: 65px;
            bottom: 0;
            background: var(--bg-card);
            border: 1px solid var(--color-primary);
            padding: 15px;
            border-radius: 12px;
            box-shadow: var(--shadow-neon);
            display: none;
            text-align: center;
        }

        .float-qr img {
            width: 120px;
            height: 120px;
        }

        .float-qr span {
            display: block;
            margin-top: 8px;
            font-size: 0.75rem;
            color: var(--text-main);
        }

        .float-btn:hover .float-qr {
            display: block;
        }

        /* Animations */
        @keyframes pulse {
            0% {
                box-shadow: 0 0 0 0 rgba(255, 0, 127, 0.4);
            }
            70% {
                box-shadow: 0 0 0 10px rgba(255, 0, 127, 0);
            }
            100% {
                box-shadow: 0 0 0 0 rgba(255, 0, 127, 0);
            }
        }

        /* Responsive Settings */
        @media (max-width: 992px) {
            .hero-inner {
                grid-template-columns: 1fr;
            }
            .hero-graphic {
                height: 320px;
            }
            .standards-container,
            .troubleshoot-grid,
            .contact-layout,
            .banner-showcase {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            html {
                font-size: 14px;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: var(--bg-surface);
                border-bottom: 1px solid var(--border-neon);
                padding: 20px;
            }
            .nav-menu.active {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .hero-buttons {
                flex-direction: column;
            }
            .qr-gallery {
                grid-template-columns: 1fr;
            }
        }