:root {
            --primary: #3b82f6;
            --primary-dark: #2563eb;
            --primary-light: #60a5fa;
            --bg: #0b0f19;
            --surface: #111827;
            --surface-card: #1f2937;
            --text: #f9fafb;
            --text-muted: #9ca3af;
            --border: #374151;
            --border-hover: #4b5563;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
            line-height: 1.6;
            color: var(--text);
            background-color: var(--bg);
            padding: 0;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            overflow-x: hidden;
            -webkit-tap-highlight-color: transparent;
        }
        .container {
            max-width: 1060px;
            margin: 0 auto;
            padding: 48px 24px;
            flex: 1;
            width: 100%;
        }
        .nav-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 32px;
            flex-wrap: wrap;
        }
        .nav-breadcrumb a {
            color: #60a5fa;
            text-decoration: none;
            font-weight: 500;
        }
        .nav-breadcrumb a:hover {
            text-decoration: underline;
        }
        header {
            text-align: center;
            margin-bottom: 40px;
        }
        .badge {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            padding: 6px 14px;
            border-radius: 9999px;
            background: rgba(59, 130, 246, 0.15);
            color: #60a5fa;
            border: 1px solid rgba(59, 130, 246, 0.3);
            margin-bottom: 20px;
        }
        .badge.live {
            background: rgba(16, 185, 129, 0.15);
            color: #34d399;
            border-color: rgba(16, 185, 129, 0.3);
        }
        .pulse-dot {
            display: inline-block;
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: #10b981;
            margin-right: 6px;
            box-shadow: 0 0 8px #10b981;
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.4; transform: scale(0.85); }
            100% { opacity: 1; transform: scale(1); }
        }
        h1 {
            font-size: clamp(2.2rem, 5vw, 3.4rem);
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 16px;
            letter-spacing: -0.03em;
            line-height: 1.2;
            word-break: break-word;
        }
        h1 span {
            background: linear-gradient(135deg, #60a5fa 0%, #3b82f6 50%, #38bdf8 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        p.hero-desc {
            font-size: 1.15rem;
            color: var(--text-muted);
            max-width: 680px;
            margin: 0 auto 32px auto;
            line-height: 1.7;
        }
        .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 12px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 1rem;
            text-decoration: none;
            transition: all 0.2s ease;
            min-height: 48px;
        }
        .btn-primary {
            background: #2563eb;
            color: #ffffff;
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.4);
        }
        .btn-primary:hover {
            background: #1d4ed8;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(37, 99, 235, 0.5);
        }
        .btn-primary:active {
            transform: scale(0.98);
        }
        .btn-secondary {
            background: var(--surface);
            color: #f9fafb;
            border: 1px solid var(--border);
        }
        .btn-secondary:hover {
            background: var(--surface-card);
            border-color: var(--border-hover);
            transform: translateY(-2px);
        }
        .btn-secondary:active {
            transform: scale(0.98);
        }

        /* ===================================================
           ELITE INTERACTIVE SHOWCASE COMPONENT
           =================================================== */
        .elite-showcase {
            margin: 40px 0 64px 0;
            background: radial-gradient(ellipse 80% 50% at 50% 15%, rgba(37, 99, 235, 0.16), transparent 75%);
            border-radius: 32px;
            border: 1px solid rgba(59, 130, 246, 0.2);
            padding: 36px 28px 36px 28px;
            position: relative;
            box-shadow: 0 20px 50px -15px rgba(0, 0, 0, 0.6);
        }

        /* Tab Pills Navigation */
        .showcase-nav-wrap {
            display: flex;
            justify-content: center;
            margin-bottom: 36px;
            overflow-x: auto;
            padding: 4px;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .showcase-nav-wrap::-webkit-scrollbar {
            display: none;
        }
        .showcase-tabs {
            display: inline-flex;
            gap: 8px;
            background: rgba(15, 23, 42, 0.8);
            padding: 6px;
            border-radius: 9999px;
            border: 1px solid rgba(55, 65, 81, 0.8);
            box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.4);
        }
        .tab-btn {
            background: transparent;
            border: none;
            color: var(--text-muted);
            font-size: 0.88rem;
            font-weight: 600;
            padding: 8px 16px;
            border-radius: 9999px;
            cursor: pointer;
            transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }
        .tab-btn:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.05);
        }
        .tab-btn.active {
            background: #2563eb;
            color: #ffffff;
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.5);
        }

        /* Center-Stage Split View */
        .showcase-stage {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 44px;
            max-width: 920px;
            margin: 0 auto;
            position: relative;
            min-height: 480px;
        }

        /* Smartphone Chassis */
        .mockup-display {
            flex: 0 0 240px;
            display: flex;
            justify-content: center;
        }
        .device-chassis {
            width: 240px;
            background: #020617;
            border-radius: 34px;
            padding: 8px;
            border: 3px solid #334155;
            box-shadow: 0 25px 60px -10px rgba(0, 0, 0, 0.9), 0 0 35px rgba(37, 99, 235, 0.25);
            position: relative;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .device-chassis:hover {
            transform: translateY(-4px) scale(1.01);
            box-shadow: 0 30px 70px -10px rgba(0, 0, 0, 0.95), 0 0 45px rgba(59, 130, 246, 0.4);
        }
        .device-speaker {
            width: 60px;
            height: 5px;
            background: #1e293b;
            border-radius: 4px;
            margin: 4px auto 8px auto;
        }
        .device-viewport {
            border-radius: 24px;
            overflow: hidden;
            background: #0b0f19;
            line-height: 0;
            box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.8);
            cursor: pointer;
            cursor: zoom-in;
            position: relative;
        }
        .device-viewport img {
            width: 100%;
            height: auto;
            display: block;
            transition: opacity 0.25s ease, transform 0.25s ease;
        }
        .zoom-overlay-hint {
            position: absolute;
            bottom: 12px;
            left: 50%;
            transform: translateX(-50%);
            background: rgba(15, 23, 42, 0.85);
            border: 1px solid rgba(59, 130, 246, 0.4);
            color: #93c5fd;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 9999px;
            backdrop-filter: blur(4px);
            opacity: 0;
            transition: opacity 0.25s ease, transform 0.25s ease;
            pointer-events: none;
            white-space: nowrap;
            box-shadow: 0 4px 12px rgba(0,0,0,0.5);
        }
        .device-viewport:hover .zoom-overlay-hint {
            opacity: 1;
            transform: translateX(-50%) translateY(-2px);
        }

        /* Feature Details Panel */
        .showcase-details-panel {
            flex: 1;
            text-align: left;
            background: rgba(17, 24, 39, 0.7);
            border: 1px solid rgba(55, 65, 81, 0.8);
            border-radius: 24px;
            padding: 32px 28px;
            backdrop-filter: blur(8px);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
        }
        .panel-badge {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: #60a5fa;
            background: rgba(37, 99, 235, 0.15);
            border: 1px solid rgba(59, 130, 246, 0.3);
            padding: 4px 12px;
            border-radius: 9999px;
            margin-bottom: 12px;
        }
        .showcase-details-panel h3 {
            font-size: 1.5rem;
            color: #ffffff;
            font-weight: 800;
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .showcase-details-panel p {
            color: var(--text-muted);
            font-size: 0.98rem;
            line-height: 1.7;
            margin-bottom: 24px;
        }
        .panel-features {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .panel-point {
            display: flex;
            align-items: flex-start;
            gap: 12px;
        }
        .point-icon {
            font-size: 1.25rem;
            line-height: 1.2;
            flex-shrink: 0;
            margin-top: 2px;
        }
        .panel-point strong {
            display: block;
            color: #f3f4f6;
            font-size: 0.95rem;
            margin-bottom: 2px;
        }
        .panel-point p {
            color: #9ca3af;
            font-size: 0.88rem;
            line-height: 1.5;
            margin-bottom: 0;
        }

        /* Floating Controls & Dots */
        .stage-arrow {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(30, 41, 59, 0.8);
            border: 1px solid rgba(71, 85, 105, 0.6);
            color: #ffffff;
            font-size: 1.8rem;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.2s ease;
            backdrop-filter: blur(4px);
            z-index: 10;
        }
        .stage-arrow:hover {
            background: #2563eb;
            border-color: #3b82f6;
            box-shadow: 0 0 16px rgba(37, 99, 235, 0.6);
        }
        .arrow-left { left: -22px; }
        .arrow-right { right: -22px; }

        .showcase-dots {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin-top: 28px;
        }
        .dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: rgba(71, 85, 105, 0.6);
            cursor: pointer;
            transition: all 0.25s ease;
        }
        .dot.active {
            width: 28px;
            border-radius: 6px;
            background: #3b82f6;
            box-shadow: 0 0 10px rgba(59, 130, 246, 0.6);
        }

        /* ===================================================
           LIGHTBOX FULLSCREEN ZOOM MODAL
           =================================================== */
        .lightbox-modal {
            position: fixed;
            inset: 0;
            z-index: 99999;
            display: none;
            align-items: center;
            justify-content: center;
            opacity: 0;
            transition: opacity 0.25s ease;
        }
        .lightbox-modal.active {
            display: flex;
            opacity: 1;
        }
        .lightbox-backdrop {
            position: absolute;
            inset: 0;
            background: rgba(5, 9, 20, 0.9);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
        }
        .lightbox-container {
            position: relative;
            z-index: 10;
            display: flex;
            flex-direction: column;
            align-items: center;
            max-width: 95vw;
            max-height: 95vh;
            animation: zoomIn 0.25s cubic-bezier(0.16, 1, 0.3, 1);
        }
        @keyframes zoomIn {
            from { transform: scale(0.92); opacity: 0; }
            to { transform: scale(1); opacity: 1; }
        }
        .lightbox-device {
            max-height: 78vh;
            border-radius: 32px;
            padding: 8px;
            background: #020617;
            border: 3px solid #334155;
            box-shadow: 0 25px 70px rgba(0, 0, 0, 0.95), 0 0 45px rgba(37, 99, 235, 0.35);
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }
        .lightbox-device img {
            max-height: calc(78vh - 16px);
            width: auto;
            border-radius: 24px;
            display: block;
            object-fit: contain;
        }
        .lightbox-caption {
            margin-top: 14px;
            text-align: center;
            background: rgba(17, 24, 39, 0.85);
            border: 1px solid rgba(59, 130, 246, 0.3);
            border-radius: 9999px;
            padding: 6px 18px;
            color: #ffffff;
            font-size: 0.9rem;
            font-weight: 600;
            box-shadow: 0 4px 16px rgba(0,0,0,0.6);
        }
        .lightbox-close {
            position: absolute;
            top: -48px;
            right: -10px;
            background: rgba(30, 41, 59, 0.85);
            border: 1px solid rgba(71, 85, 105, 0.6);
            color: #ffffff;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            cursor: pointer;
            transition: all 0.2s ease;
        }
        .lightbox-close:hover {
            background: #ef4444;
            border-color: #ef4444;
            box-shadow: 0 0 14px rgba(239, 68, 68, 0.6);
        }
        .lightbox-nav {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(30, 41, 59, 0.85);
            border: 1px solid rgba(71, 85, 105, 0.6);
            color: #ffffff;
            font-size: 2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.2s ease;
            z-index: 20;
        }
        .lightbox-nav:hover {
            background: #2563eb;
            border-color: #3b82f6;
            box-shadow: 0 0 16px rgba(37, 99, 235, 0.6);
        }
        .lightbox-prev { left: -64px; }
        .lightbox-next { right: -64px; }

        @media (max-width: 820px) {
            .elite-showcase {
                padding: 28px 16px 24px 16px;
            }
            .showcase-stage {
                flex-direction: column;
                gap: 28px;
                min-height: auto;
            }
            .stage-arrow {
                display: none;
            }
            .showcase-details-panel {
                text-align: center;
                padding: 24px 18px;
            }
            .panel-point {
                text-align: left;
            }
            .showcase-nav-wrap {
                justify-content: flex-start;
            }
            .lightbox-prev { left: 8px; }
            .lightbox-next { right: 8px; }
            .lightbox-close { top: -42px; right: 0; }
            .lightbox-device { max-height: 72vh; }
            .lightbox-device img { max-height: calc(72vh - 16px); }
        }

        /* General Features Grid */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
            margin: 48px 0;
        }
        .feature-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 18px;
            padding: 28px;
            transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
            display: flex;
            flex-direction: column;
        }
        .feature-card:hover {
            border-color: var(--border-hover);
            transform: translateY(-3px);
            box-shadow: 0 12px 24px -6px rgba(0, 0, 0, 0.4);
        }
        .feature-icon {
            font-size: 2.2rem;
            margin-bottom: 16px;
        }
        .feature-card h3 {
            font-size: 1.3rem;
            color: #ffffff;
            margin-bottom: 12px;
            font-weight: 700;
        }
        .feature-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
        }
        .info-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 36px;
            margin: 36px 0;
        }
        .info-card h2 {
            color: #60a5fa;
            font-size: 1.5rem;
            margin-bottom: 16px;
            font-weight: 700;
        }
        .info-card p, .info-card li {
            color: var(--text-muted);
            font-size: 0.98rem;
            line-height: 1.7;
        }
        .info-card ul {
            padding-left: 24px;
            margin-top: 12px;
        }
        .info-card li {
            margin-bottom: 8px;
        }
        .privacy-highlight {
            background: rgba(37, 99, 235, 0.1);
            border: 1px solid rgba(59, 130, 246, 0.3);
            border-radius: 20px;
            padding: 36px;
            margin: 36px 0;
        }
        .privacy-highlight h2 {
            color: #93c5fd;
            font-size: 1.5rem;
            margin-bottom: 14px;
            font-weight: 700;
        }
        .privacy-highlight p {
            color: #cbd5e1;
            font-size: 1rem;
            line-height: 1.7;
            margin-bottom: 20px;
        }
        footer {
            margin-top: 48px;
            text-align: center;
            border-top: 1px solid var(--border);
            padding: 36px 20px;
            color: var(--text-muted);
            font-size: 0.9rem;
            background-color: var(--surface);
        }
        footer .footer-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 12px;
        }
        footer a {
            color: #93c5fd;
            text-decoration: none;
            font-weight: 500;
            transition: color 0.2s ease;
            padding: 4px;
        }
        footer a:hover {
            color: #ffffff;
            text-decoration: underline;
        }
        @media (max-width: 640px) {
            .container {
                padding: 24px 16px;
            }
            h1 {
                font-size: 2.1rem;
            }
            p.hero-desc {
                font-size: 1.05rem;
                margin-bottom: 24px;
            }
            .cta-buttons {
                flex-direction: column;
                width: 100%;
                gap: 12px;
            }
            .btn {
                width: 100%;
            }
            .features-grid {
                grid-template-columns: 1fr;
                gap: 18px;
                margin: 28px 0;
            }
            .feature-card, .info-card, .privacy-highlight {
                padding: 24px 18px;
                border-radius: 16px;
            }
            footer {
                padding: 28px 16px;
            }
            footer .footer-links {
                gap: 10px;
                font-size: 0.85rem;
            }
        }