:root {
            --bg-primary: #080c1a;
            --bg-secondary: #0d1330;
            --bg-card: rgba(255, 255, 255, 0.04);
            --bg-card-hover: rgba(255, 255, 255, 0.07);
            --border-glass: rgba(255, 255, 255, 0.08);
            --border-active: rgba(124, 58, 237, 0.25);
            --text-primary: #ffffff;
            --text-secondary: rgba(255, 255, 255, 0.75);
            --text-muted: rgba(255, 255, 255, 0.45);
            --accent-purple: #7c3aed;
            --accent-blue: #3b82f6;
            --accent-cyan: #06b6d4;
            --accent-pink: #ec4899;
            --accent-green: #10b981;
            --accent-amber: #f59e0b;
            --gradient-main: linear-gradient(135deg, #7c3aed, #3b82f6);
            --gradient-warm: linear-gradient(135deg, #ec4899, #f59e0b);
            --gradient-cool: linear-gradient(135deg, #06b6d4, #3b82f6);
            --gradient-glow: linear-gradient(135deg, rgba(124, 58, 237, 0.3), rgba(59, 130, 246, 0.3));
            --shadow-glow: 0 0 60px rgba(124, 58, 237, 0.15), 0 0 120px rgba(59, 130, 246, 0.08);
            --shadow-card: 0 0 40px rgba(124, 58, 237, 0.08);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            scroll-padding-top: 100px;
        }
        body {
            font-family: var(--font-family);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        ::-webkit-scrollbar {
            width: 5px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-primary);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--accent-purple);
            border-radius: 10px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #9b6dff;
        }

        canvas#particles {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 0;
            pointer-events: none;
        }

        .app {
            position: relative;
            z-index: 1;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-narrow {
            max-width: 960px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== HEADER ===== */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            padding: 14px 0;
            background: rgba(8, 12, 26, 0.72);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-glass);
            transition: all var(--transition-smooth);
        }
        header.scrolled {
            background: rgba(8, 12, 26, 0.94);
            box-shadow: 0 4px 40px rgba(0, 0, 0, 0.5);
            padding: 10px 0;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            font-weight: 800;
            font-size: 21px;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            flex-shrink: 0;
            transition: opacity var(--transition-fast);
        }
        .logo:hover {
            opacity: 0.85;
        }
        .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: var(--gradient-main);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 900;
            color: #fff;
            box-shadow: 0 0 24px rgba(124, 58, 237, 0.35);
            transition: transform var(--transition-smooth);
            flex-shrink: 0;
        }
        .logo:hover .logo-icon {
            transform: rotate(-6deg) scale(1.06);
        }
        .logo span {
            background: var(--gradient-main);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }
        nav a {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: 8px;
            transition: all var(--transition-fast);
            letter-spacing: 0.2px;
            white-space: nowrap;
        }
        nav a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
        }
        nav a.active {
            color: #fff;
            background: rgba(124, 58, 237, 0.2);
            box-shadow: 0 0 20px rgba(124, 58, 237, 0.08);
            position: relative;
        }
        nav a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 2px;
            border-radius: 2px;
            background: var(--gradient-main);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .btn-download-small {
            padding: 8px 18px;
            border-radius: 8px;
            background: var(--gradient-main);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            text-decoration: none;
            transition: all var(--transition-smooth);
            box-shadow: 0 0 28px rgba(124, 58, 237, 0.22);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }
        .btn-download-small:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 44px rgba(124, 58, 237, 0.4);
        }
        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 4px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 4px;
            z-index: 101;
        }
        .mobile-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-smooth);
        }
        .mobile-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(4px, 4px);
        }
        .mobile-toggle.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }
        .mobile-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(4px, -4px);
        }

        @media (max-width: 820px) {
            .mobile-toggle {
                display: flex;
            }
            nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding: 14px 0 6px;
                gap: 2px;
            }
            nav.open {
                display: flex;
            }
            nav a {
                padding: 12px 16px;
                font-size: 15px;
                text-align: center;
            }
            nav a.active::after {
                display: none;
            }
            .header-actions .btn-download-small {
                display: none;
            }
            .header-actions .btn-download-small.mobile-show {
                display: inline-flex;
            }
        }
        @media (min-width: 821px) {
            .header-actions .btn-download-small.mobile-show {
                display: none;
            }
        }

        /* ===== HERO ===== */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding: 120px 0 60px;
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: -35%;
            right: -15%;
            width: 75%;
            height: 75%;
            background: radial-gradient(ellipse, rgba(124, 58, 237, 0.14), transparent 70%);
            pointer-events: none;
            animation: pulse-glow 8s ease-in-out infinite alternate;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: -35%;
            left: -15%;
            width: 65%;
            height: 65%;
            background: radial-gradient(ellipse, rgba(59, 130, 246, 0.09), transparent 70%);
            pointer-events: none;
            animation: pulse-glow 10s ease-in-out infinite alternate-reverse;
        }
        @keyframes pulse-glow {
            0% {
                opacity: 0.5;
                transform: scale(1);
            }
            100% {
                opacity: 1;
                transform: scale(1.12);
            }
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
            position: relative;
            z-index: 2;
        }
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                text-align: center;
                gap: 36px;
            }
        }
        .hero-content {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 5px 14px 5px 7px;
            border-radius: 50px;
            background: rgba(124, 58, 237, 0.1);
            border: 1px solid rgba(124, 58, 237, 0.18);
            font-size: 11px;
            font-weight: 500;
            color: var(--text-secondary);
            width: fit-content;
            backdrop-filter: blur(8px);
            animation: fade-up 0.8s ease both;
            letter-spacing: 0.3px;
        }
        .hero-badge .dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: #22d3ee;
            animation: blink-dot 1.8s ease-in-out infinite;
        }
        @keyframes blink-dot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.15;
            }
        }
        @media (max-width: 1024px) {
            .hero-badge {
                margin: 0 auto;
            }
        }
        .hero h1 {
            font-size: clamp(38px, 5.5vw, 68px);
            font-weight: 800;
            line-height: 1.06;
            letter-spacing: -1.5px;
            animation: fade-up 0.8s ease 0.1s both;
        }
        .hero h1 .highlight {
            background: var(--gradient-main);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            position: relative;
        }
        .hero h1 .highlight::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--gradient-main);
            border-radius: 3px;
            opacity: 0.25;
            filter: blur(3px);
        }
        .hero p.sub {
            font-size: clamp(15px, 1.2vw, 18px);
            color: var(--text-secondary);
            max-width: 500px;
            line-height: 1.7;
            animation: fade-up 0.8s ease 0.2s both;
        }
        @media (max-width: 1024px) {
            .hero p.sub {
                max-width: 100%;
            }
        }
        .hero-stats {
            display: flex;
            gap: 36px;
            flex-wrap: wrap;
            margin-top: 4px;
            animation: fade-up 0.8s ease 0.3s both;
        }
        @media (max-width: 1024px) {
            .hero-stats {
                justify-content: center;
                gap: 28px;
            }
        }
        .stat-item {
            display: flex;
            flex-direction: column;
        }
        .stat-item .number {
            font-size: clamp(30px, 3.2vw, 44px);
            font-weight: 800;
            background: var(--gradient-main);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1;
            letter-spacing: -1px;
        }
        .stat-item .label {
            font-size: 12px;
            color: var(--text-muted);
            font-weight: 500;
            margin-top: 3px;
            letter-spacing: 0.3px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 4px;
            animation: fade-up 0.8s ease 0.4s both;
        }
        @media (max-width: 1024px) {
            .hero-actions {
                justify-content: center;
            }
        }
        .btn-primary {
            padding: 13px 32px;
            border-radius: 12px;
            background: var(--gradient-main);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition-smooth);
            box-shadow: 0 0 36px rgba(124, 58, 237, 0.28);
            position: relative;
            overflow: hidden;
        }
        .btn-primary::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.12), transparent 55%);
            pointer-events: none;
        }
        .btn-primary:hover {
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 0 56px rgba(124, 58, 237, 0.45);
        }
        .btn-primary:active {
            transform: scale(0.97);
        }
        .btn-secondary {
            padding: 13px 32px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-primary);
            font-size: 15px;
            font-weight: 600;
            border: 1px solid var(--border-glass);
            cursor: pointer;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition-smooth);
            backdrop-filter: blur(8px);
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.18);
            transform: translateY(-3px);
            box-shadow: 0 8px 36px rgba(0, 0, 0, 0.35);
        }

        /* Hero Visual */
        .hero-visual {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 24px;
            animation: fade-up 0.8s ease 0.2s both;
        }
        .globe-wrap {
            width: 100%;
            max-width: 400px;
            aspect-ratio: 1;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .globe-wrap .ring {
            position: absolute;
            border-radius: 50%;
            border: 1px solid rgba(124, 58, 237, 0.13);
            animation: spin-ring 22s linear infinite;
        }
        .globe-wrap .ring:nth-child(1) {
            width: 100%;
            height: 100%;
            border-color: rgba(124, 58, 237, 0.1);
            animation-duration: 28s;
        }
        .globe-wrap .ring:nth-child(2) {
            width: 78%;
            height: 78%;
            border-color: rgba(59, 130, 246, 0.09);
            animation-duration: 19s;
            animation-direction: reverse;
        }
        .globe-wrap .ring:nth-child(3) {
            width: 56%;
            height: 56%;
            border-color: rgba(6, 182, 212, 0.07);
            animation-duration: 15s;
        }
        @keyframes spin-ring {
            0% {
                transform: rotate(0deg);
            }
            100% {
                transform: rotate(360deg);
            }
        }
        .globe-wrap .core {
            width: 52%;
            height: 52%;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 30%, rgba(124, 58, 237, 0.22), rgba(59, 130, 246, 0.06));
            box-shadow: 0 0 70px rgba(124, 58, 237, 0.12), inset 0 0 70px rgba(59, 130, 246, 0.04);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 42px;
            font-weight: 900;
            color: rgba(255, 255, 255, 0.05);
            letter-spacing: 4px;
            animation: pulse-core 4s ease-in-out infinite alternate;
        }
        @keyframes pulse-core {
            0% {
                transform: scale(1);
                opacity: 0.55;
            }
            100% {
                transform: scale(1.06);
                opacity: 1;
            }
        }
        .hero-visual .status-card {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 22px;
            border-radius: 16px;
            background: var(--bg-card);
            border: 1px solid var(--border-glass);
            backdrop-filter: blur(12px);
            width: 100%;
            max-width: 300px;
            transition: all var(--transition-smooth);
        }
        .hero-visual .status-card:hover {
            border-color: rgba(124, 58, 237, 0.22);
            background: rgba(255, 255, 255, 0.05);
        }
        .status-card .status-dot {
            width: 9px;
            height: 9px;
            border-radius: 50%;
            background: #22d3ee;
            box-shadow: 0 0 16px rgba(34, 211, 238, 0.45);
            animation: blink-dot 1.4s ease-in-out infinite;
            flex-shrink: 0;
        }
        .status-card .status-text {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
        }
        .status-card .status-text strong {
            color: #22d3ee;
            font-weight: 600;
        }
        .status-card .status-badge {
            margin-left: auto;
            font-size: 10px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 50px;
            background: rgba(34, 211, 238, 0.1);
            color: #22d3ee;
            border: 1px solid rgba(34, 211, 238, 0.12);
        }
        @media (max-width: 1024px) {
            .hero-visual .globe-wrap {
                max-width: 280px;
            }
            .hero-visual .status-card {
                max-width: 100%;
            }
        }
        @keyframes fade-up {
            0% {
                opacity: 0;
                transform: translateY(28px);
            }
            100% {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ===== PULSE BAR ===== */
        .pulse-bar-section {
            padding: 0 0 50px;
            position: relative;
            z-index: 2;
        }
        .pulse-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        @media (max-width: 768px) {
            .pulse-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
        }
        @media (max-width: 480px) {
            .pulse-bar {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
        }
        .pulse-item {
            padding: 18px 20px;
            border-radius: var(--radius-md);
            background: var(--bg-card);
            border: 1px solid var(--border-glass);
            display: flex;
            align-items: center;
            gap: 14px;
            backdrop-filter: blur(8px);
            transition: all var(--transition-smooth);
            cursor: default;
        }
        .pulse-item:hover {
            border-color: var(--border-active);
            background: var(--bg-card-hover);
            box-shadow: var(--shadow-card);
            transform: translateY(-2px);
        }
        .pulse-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            flex-shrink: 0;
            position: relative;
        }
        .pulse-icon.purple {
            background: rgba(124, 58, 237, 0.12);
        }
        .pulse-icon.cyan {
            background: rgba(6, 182, 212, 0.1);
        }
        .pulse-icon.green {
            background: rgba(16, 185, 129, 0.1);
        }
        .pulse-icon.amber {
            background: rgba(245, 158, 11, 0.1);
        }
        .pulse-icon .live-dot {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #22d3ee;
            animation: blink-dot 1.5s ease-in-out infinite;
        }
        .pulse-info .pulse-value {
            font-size: 20px;
            font-weight: 700;
            letter-spacing: -0.5px;
            line-height: 1;
        }
        .pulse-info .pulse-label {
            font-size: 11px;
            color: var(--text-muted);
            margin-top: 2px;
            letter-spacing: 0.3px;
        }

        /* ===== SECTION SHARED ===== */
        .section {
            padding: 70px 0 90px;
            position: relative;
        }
        .section-divider {
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 55%;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(124, 58, 237, 0.2), transparent);
            pointer-events: none;
        }
        .section-label {
            display: inline-block;
            font-size: 11px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 2.5px;
            color: var(--accent-cyan);
            background: rgba(6, 182, 212, 0.07);
            padding: 4px 14px;
            border-radius: 50px;
            border: 1px solid rgba(6, 182, 212, 0.08);
            margin-bottom: 14px;
        }
        .section-title {
            font-size: clamp(26px, 3.2vw, 40px);
            font-weight: 700;
            letter-spacing: -0.8px;
            line-height: 1.12;
            margin-bottom: 10px;
        }
        .section-title .highlight {
            background: var(--gradient-main);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .section-desc {
            color: var(--text-secondary);
            font-size: 15px;
            max-width: 500px;
            line-height: 1.7;
        }
        @media (max-width: 640px) {
            .section-desc {
                max-width: 100%;
            }
            .section {
                padding: 50px 0 60px;
            }
        }

        /* ===== FEATURES GRID ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 40px;
        }
        @media (max-width: 820px) {
            .features-grid {
                grid-template-columns: 1fr;
                max-width: 460px;
                margin-left: auto;
                margin-right: auto;
            }
        }
        .feature-card {
            padding: 30px 26px;
            border-radius: var(--radius-lg);
            background: var(--bg-card);
            border: 1px solid var(--border-glass);
            backdrop-filter: blur(8px);
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
            cursor: default;
            display: flex;
            flex-direction: column;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            inset: 0;
            background: var(--gradient-glow);
            opacity: 0;
            transition: opacity 0.5s ease;
            border-radius: var(--radius-lg);
            pointer-events: none;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            border-color: rgba(124, 58, 237, 0.18);
            box-shadow: var(--shadow-glow);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-card .fc-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
            transition: all var(--transition-smooth);
        }
        .feature-card .fc-icon.purple {
            background: rgba(124, 58, 237, 0.1);
            border: 1px solid rgba(124, 58, 237, 0.08);
        }
        .feature-card:hover .fc-icon.purple {
            background: rgba(124, 58, 237, 0.2);
            border-color: rgba(124, 58, 237, 0.28);
            box-shadow: 0 0 28px rgba(124, 58, 237, 0.14);
        }
        .feature-card .fc-icon.cyan {
            background: rgba(6, 182, 212, 0.07);
            border: 1px solid rgba(6, 182, 212, 0.06);
        }
        .feature-card:hover .fc-icon.cyan {
            background: rgba(6, 182, 212, 0.16);
            border-color: rgba(6, 182, 212, 0.22);
            box-shadow: 0 0 28px rgba(6, 182, 212, 0.1);
        }
        .feature-card .fc-icon.pink {
            background: rgba(236, 72, 153, 0.07);
            border: 1px solid rgba(236, 72, 153, 0.06);
        }
        .feature-card:hover .fc-icon.pink {
            background: rgba(236, 72, 153, 0.16);
            border-color: rgba(236, 72, 153, 0.22);
            box-shadow: 0 0 28px rgba(236, 72, 153, 0.1);
        }
        .feature-card h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 6px;
            position: relative;
            z-index: 1;
        }
        .feature-card p {
            color: var(--text-secondary);
            font-size: 13px;
            line-height: 1.7;
            position: relative;
            z-index: 1;
            flex-grow: 1;
        }
        .feature-card .learn-more {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            margin-top: 14px;
            font-size: 12px;
            font-weight: 500;
            color: var(--accent-cyan);
            text-decoration: none;
            position: relative;
            z-index: 1;
            transition: all var(--transition-fast);
            width: fit-content;
        }
        .feature-card .learn-more:hover {
            gap: 10px;
            color: #67e8f9;
        }

        /* ===== GLOBAL NODES ===== */
        .nodes-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 40px;
        }
        @media (max-width: 820px) {
            .nodes-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 480px) {
            .nodes-grid {
                grid-template-columns: 1fr;
                max-width: 320px;
                margin-left: auto;
                margin-right: auto;
            }
        }
        .node-card {
            padding: 20px 18px;
            border-radius: var(--radius-md);
            background: var(--bg-card);
            border: 1px solid var(--border-glass);
            text-align: center;
            transition: all var(--transition-smooth);
            cursor: default;
            position: relative;
            overflow: hidden;
        }
        .node-card:hover {
            border-color: rgba(124, 58, 237, 0.2);
            background: var(--bg-card-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
        }
        .node-region {
            font-size: 28px;
            margin-bottom: 6px;
            display: block;
        }
        .node-name {
            font-weight: 600;
            font-size: 14px;
            margin-bottom: 4px;
        }
        .node-count {
            font-size: 11px;
            color: var(--text-muted);
            margin-bottom: 8px;
        }
        .node-status {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 11px;
            font-weight: 500;
            color: #22d3ee;
            background: rgba(34, 211, 238, 0.08);
            padding: 3px 10px;
            border-radius: 50px;
        }
        .node-status .mini-dot {
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: #22d3ee;
            animation: blink-dot 1.4s ease-in-out infinite;
        }

        /* ===== SCENARIOS ===== */
        .scenarios-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 40px;
        }
        @media (max-width: 820px) {
            .scenarios-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 480px) {
            .scenarios-grid {
                grid-template-columns: 1fr;
                max-width: 320px;
                margin-left: auto;
                margin-right: auto;
            }
        }
        .scenario-card {
            padding: 24px 18px;
            border-radius: var(--radius-md);
            background: var(--bg-card);
            border: 1px solid var(--border-glass);
            text-align: center;
            transition: all var(--transition-smooth);
            cursor: default;
        }
        .scenario-card:hover {
            border-color: rgba(124, 58, 237, 0.18);
            background: var(--bg-card-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
        }
        .scenario-emoji {
            font-size: 36px;
            display: block;
            margin-bottom: 10px;
        }
        .scenario-card h4 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 4px;
        }
        .scenario-card p {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* ===== SECURITY STACK ===== */
        .security-stack {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            margin-top: 40px;
            position: relative;
        }
        @media (max-width: 820px) {
            .security-stack {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
        }
        @media (max-width: 480px) {
            .security-stack {
                grid-template-columns: 1fr;
                max-width: 300px;
                margin-left: auto;
                margin-right: auto;
            }
        }
        .security-stack::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, rgba(124, 58, 237, 0.3), rgba(6, 182, 212, 0.3), rgba(16, 185, 129, 0.3), rgba(245, 158, 11, 0.3));
            z-index: 0;
            border-radius: 2px;
        }
        @media (max-width: 820px) {
            .security-stack::before {
                display: none;
            }
        }
        .sec-layer {
            text-align: center;
            padding: 20px 14px;
            position: relative;
            z-index: 1;
            transition: all var(--transition-smooth);
            cursor: default;
        }
        .sec-layer:hover {
            transform: translateY(-5px);
        }
        .sec-layer .sec-icon-wrap {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            margin: 0 auto 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            background: var(--bg-card);
            border: 2px solid var(--border-glass);
            position: relative;
            z-index: 1;
            transition: all var(--transition-smooth);
        }
        .sec-layer:hover .sec-icon-wrap {
            border-color: rgba(124, 58, 237, 0.35);
            box-shadow: 0 0 30px rgba(124, 58, 237, 0.12);
        }
        .sec-layer h5 {
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 2px;
        }
        .sec-layer span {
            font-size: 11px;
            color: var(--text-muted);
        }

        /* ===== QUICK START ===== */
        .steps-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 40px;
        }
        @media (max-width: 640px) {
            .steps-row {
                grid-template-columns: 1fr;
                max-width: 380px;
                margin-left: auto;
                margin-right: auto;
            }
        }
        .step-card {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 24px 20px;
            border-radius: var(--radius-md);
            background: var(--bg-card);
            border: 1px solid var(--border-glass);
            transition: all var(--transition-smooth);
            cursor: default;
        }
        .step-card:hover {
            border-color: rgba(124, 58, 237, 0.2);
            background: var(--bg-card-hover);
            transform: translateX(3px);
            box-shadow: var(--shadow-card);
        }
        .step-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--gradient-main);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 18px;
            color: #fff;
            flex-shrink: 0;
            box-shadow: 0 0 22px rgba(124, 58, 237, 0.25);
        }
        .step-content h4 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 3px;
        }
        .step-content p {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .step-content a {
            color: var(--accent-cyan);
            text-decoration: none;
            font-size: 12px;
            font-weight: 500;
            transition: color var(--transition-fast);
        }
        .step-content a:hover {
            color: #67e8f9;
        }

        /* ===== CERT SECTION ===== */
        .cert-section {
            padding: 20px 0 70px;
            position: relative;
        }
        .cert-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 24px;
            padding: 28px 36px;
            border-radius: var(--radius-lg);
            background: var(--bg-card);
            border: 1px solid var(--border-glass);
            backdrop-filter: blur(12px);
            transition: all var(--transition-smooth);
        }
        .cert-wrap:hover {
            border-color: rgba(124, 58, 237, 0.14);
            box-shadow: var(--shadow-glow);
        }
        .cert-left {
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
        }
        .cert-left .badge-icon {
            width: 50px;
            height: 50px;
            border-radius: 14px;
            background: var(--gradient-main);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            flex-shrink: 0;
            box-shadow: 0 0 32px rgba(124, 58, 237, 0.2);
        }
        .cert-text h4 {
            font-size: 15px;
            font-weight: 600;
        }
        .cert-text p {
            font-size: 12px;
            color: var(--text-secondary);
        }
        .cert-right {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .cert-right .tag {
            padding: 5px 14px;
            border-radius: 50px;
            font-size: 11px;
            font-weight: 500;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-glass);
            color: var(--text-secondary);
        }
        .cert-right .tag.verified {
            background: rgba(34, 211, 238, 0.05);
            border-color: rgba(34, 211, 238, 0.1);
            color: #22d3ee;
        }
        @media (max-width: 640px) {
            .cert-wrap {
                padding: 22px 18px;
                flex-direction: column;
                align-items: flex-start;
            }
            .cert-right {
                width: 100%;
            }
        }

        /* ===== DOWNLOAD SECTION ===== */
        .download-section {
            padding: 20px 0 90px;
            position: relative;
        }
        .download-section::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 75%;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(124, 58, 237, 0.12), transparent);
            pointer-events: none;
        }
        .download-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin-top: 36px;
        }
        @media (max-width: 640px) {
            .download-grid {
                grid-template-columns: 1fr;
            }
        }
        .download-card {
            padding: 28px 24px;
            border-radius: var(--radius-lg);
            background: var(--bg-card);
            border: 1px solid var(--border-glass);
            backdrop-filter: blur(8px);
            transition: all var(--transition-smooth);
            text-decoration: none;
            color: inherit;
            display: flex;
            align-items: center;
            gap: 18px;
            position: relative;
            overflow: hidden;
        }
        .download-card::before {
            content: '';
            position: absolute;
            inset: 0;
            background: var(--gradient-glow);
            opacity: 0;
            transition: opacity 0.5s ease;
            pointer-events: none;
        }
        .download-card:hover {
            transform: translateY(-5px);
            border-color: rgba(124, 58, 237, 0.2);
            box-shadow: var(--shadow-glow);
        }
        .download-card:hover::before {
            opacity: 1;
        }
        .download-card .dl-icon {
            width: 50px;
            height: 50px;
            border-radius: 14px;
            background: rgba(124, 58, 237, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            flex-shrink: 0;
            position: relative;
            z-index: 1;
            border: 1px solid rgba(124, 58, 237, 0.06);
        }
        .download-card .dl-info {
            position: relative;
            z-index: 1;
        }
        .download-card .dl-info h4 {
            font-size: 16px;
            font-weight: 600;
        }
        .download-card .dl-info p {
            font-size: 12px;
            color: var(--text-secondary);
        }
        .download-card .dl-arrow {
            margin-left: auto;
            font-size: 18px;
            color: var(--text-muted);
            transition: all var(--transition-smooth);
            position: relative;
            z-index: 1;
        }
        .download-card:hover .dl-arrow {
            transform: translateX(5px);
            color: var(--text-primary);
        }
        .download-card.platform {
            background: rgba(255, 255, 255, 0.02);
        }
        .download-card.platform .dl-icon {
            background: rgba(6, 182, 212, 0.05);
            border-color: rgba(6, 182, 212, 0.04);
        }

        /* ===== FOOTER ===== */
        footer {
            padding: 36px 0 28px;
            border-top: 1px solid var(--border-glass);
        }
        .footer-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 18px;
        }
        .footer-inner .copy {
            font-size: 12px;
            color: var(--text-muted);
        }
        .footer-inner .footer-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }
        .footer-inner .footer-links a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 12px;
            transition: color var(--transition-fast);
        }
        .footer-inner .footer-links a:hover {
            color: var(--text-primary);
        }
        @media (max-width: 640px) {
            .footer-inner {
                flex-direction: column;
                text-align: center;
            }
            .footer-inner .footer-links {
                justify-content: center;
            }
        }

        /* ===== SCROLL TOP ===== */
        .scroll-top {
            position: fixed;
            bottom: 28px;
            right: 28px;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--bg-card);
            border: 1px solid var(--border-glass);
            color: var(--text-secondary);
            font-size: 16px;
            cursor: pointer;
            backdrop-filter: blur(12px);
            transition: all var(--transition-smooth);
            opacity: 0;
            transform: translateY(16px);
            pointer-events: none;
            z-index: 50;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .scroll-top.visible {
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto;
        }
        .scroll-top:hover {
            background: rgba(124, 58, 237, 0.14);
            border-color: rgba(124, 58, 237, 0.28);
            color: #fff;
            transform: translateY(-3px);
            box-shadow: 0 0 28px rgba(124, 58, 237, 0.14);
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }

        /* Trust badges wall */
        .trust-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 32px;
            justify-content: center;
            align-items: center;
        }
        .trust-badge-item {
            padding: 8px 16px;
            border-radius: 50px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-glass);
            font-size: 11px;
            font-weight: 500;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition-smooth);
            cursor: default;
        }
        .trust-badge-item:hover {
            border-color: rgba(255, 255, 255, 0.16);
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.05);
        }
        .trust-badge-item .tb-check {
            color: #22d3ee;
            font-weight: 700;
            font-size: 13px;
        }