:root {
            --bg-deep: #06080f;
            --bg-surface: #0d1020;
            --bg-card: #111527;
            --bg-card-hover: #161b33;
            --primary: #3b82f6;
            --primary-glow: rgba(59, 130, 246, 0.35);
            --cyan: #22d3ee;
            --cyan-glow: rgba(34, 211, 238, 0.3);
            --emerald: #34d399;
            --emerald-glow: rgba(52, 211, 153, 0.25);
            --amber: #fbbf24;
            --amber-glow: rgba(251, 191, 36, 0.3);
            --text-primary: #f1f5f9;
            --text-secondary: #cbd5e1;
            --text-muted: #94a3b8;
            --text-dim: #64748b;
            --border-subtle: #1e293b;
            --border-card: #263148;
            --border-glow: #334155;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
            --shadow-glow: 0 0 60px rgba(59, 130, 246, 0.12);
            --shadow-cyan: 0 0 40px rgba(34, 211, 238, 0.08);
            --font-mono: 'SF Mono', 'Fira Code', 'JetBrains Mono', 'Cascadia Code', monospace;
            --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-spring: 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
            background-color: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.7;
            overflow-x: hidden;
            letter-spacing: 0.01em;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        /* ========== HEADER ========== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(6, 8, 15, 0.78);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            transition: background var(--transition-smooth);
        }
        .header.scrolled {
            background: rgba(6, 8, 15, 0.94);
            border-bottom-color: var(--border-glow);
        }

        .nav-container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0.85rem 1.8rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: nowrap;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 9px;
            font-size: 1.45rem;
            font-weight: 800;
            color: #ffffff;
            white-space: nowrap;
            flex-shrink: 0;
            letter-spacing: -0.02em;
        }
        .logo-icon {
            width: 30px;
            height: 30px;
            flex-shrink: 0;
            fill: url(#logo-grad);
            filter: drop-shadow(0 0 8px rgba(34, 211, 238, 0.5));
            transition: filter var(--transition-smooth);
        }
        .logo-area:hover .logo-icon {
            filter: drop-shadow(0 0 16px rgba(34, 211, 238, 0.75));
        }
        .logo-area span {
            color: var(--cyan);
            font-weight: 700;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            flex-wrap: wrap;
            justify-content: flex-end;
        }
        .nav-links a {
            padding: 0.5rem 1rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
            border-radius: 6px;
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.04);
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 2.5px;
            border-radius: 2px;
            background: var(--cyan);
            box-shadow: 0 0 8px var(--cyan-glow);
        }

        .btn-github {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-subtle);
            padding: 0.5rem 1rem;
            border-radius: 8px;
            color: var(--text-secondary) !important;
            font-size: 0.85rem;
            font-weight: 600;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-github:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #475569;
            color: #ffffff !important;
            box-shadow: 0 0 18px rgba(255, 255, 255, 0.04);
        }
        .github-icon {
            width: 15px;
            height: 15px;
            fill: currentColor;
        }

        /* ========== HERO ========== */
        .hero-section {
            padding: 170px 1.5rem 70px 1.5rem;
            text-align: center;
            position: relative;
            overflow: hidden;
            background:
                radial-gradient(ellipse 70% 55% at 50% 18%, rgba(59, 130, 246, 0.13) 0%, transparent 65%),
                radial-gradient(ellipse 50% 40% at 25% 60%, rgba(34, 211, 238, 0.06) 0%, transparent 60%),
                radial-gradient(ellipse 50% 40% at 75% 55%, rgba(52, 211, 153, 0.05) 0%, transparent 60%),
                var(--bg-deep);
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: -120px;
            left: 50%;
            transform: translateX(-50%);
            width: 700px;
            height: 700px;
            background: radial-gradient(circle, rgba(59, 130, 246, 0.06) 0%, transparent 70%);
            pointer-events: none;
            animation: heroPulse 8s ease-in-out infinite;
        }
        @keyframes heroPulse {
            0%,
            100% {
                opacity: 0.5;
                transform: translateX(-50%) scale(1);
            }
            50% {
                opacity: 1;
                transform: translateX(-50%) scale(1.12);
            }
        }

        .hero-container {
            max-width: 1050px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 7px 18px;
            background: rgba(34, 211, 238, 0.08);
            border: 1px solid rgba(34, 211, 238, 0.22);
            border-radius: 30px;
            color: var(--cyan);
            font-size: 0.84rem;
            font-weight: 600;
            margin-bottom: 1.6rem;
            letter-spacing: 0.02em;
            animation: badgeShimmer 3s ease-in-out infinite;
        }
        @keyframes badgeShimmer {
            0%,
            100% {
                border-color: rgba(34, 211, 238, 0.22);
            }
            50% {
                border-color: rgba(34, 211, 238, 0.5);
            }
        }
        .badge-dot {
            display: inline-block;
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--emerald);
            box-shadow: 0 0 8px var(--emerald-glow);
            animation: dotPulse 1.8s ease-in-out infinite;
        }
        @keyframes dotPulse {
            0%,
            100% {
                box-shadow: 0 0 6px var(--emerald-glow);
            }
            50% {
                box-shadow: 0 0 16px rgba(52, 211, 153, 0.7);
            }
        }

        .hero-title {
            font-size: clamp(2.4rem, 5.5vw, 3.8rem);
            font-weight: 900;
            letter-spacing: -0.025em;
            line-height: 1.15;
            margin-bottom: 1.3rem;
            background: linear-gradient(175deg, #ffffff 0%, #e2e8f0 35%, #94a3b8 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-title em {
            font-style: normal;
            background: linear-gradient(135deg, var(--cyan) 0%, var(--primary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: 1.18rem;
            color: var(--text-muted);
            max-width: 680px;
            margin: 0 auto 2.8rem auto;
            line-height: 1.65;
        }

        .hero-actions {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, #3b82f6 0%, #2563eb 40%, #1d4ed8 100%);
            color: #ffffff;
            font-weight: 700;
            padding: 15px 38px;
            border-radius: 10px;
            font-size: 1.02rem;
            box-shadow: 0 12px 32px -8px rgba(37, 99, 235, 0.45);
            transition: all var(--transition-spring);
            letter-spacing: 0.01em;
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 18px 40px -6px rgba(37, 99, 235, 0.6);
            filter: brightness(1.08);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            border: 1px solid var(--border-glow);
            color: var(--text-secondary);
            font-weight: 600;
            padding: 15px 32px;
            border-radius: 10px;
            font-size: 0.98rem;
            transition: all var(--transition-fast);
            letter-spacing: 0.01em;
        }
        .btn-outline:hover {
            border-color: #64748b;
            color: #ffffff;
            background: rgba(255, 255, 255, 0.03);
        }

        .banner-image-wrapper {
            margin-top: 3.5rem;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-card);
            background: var(--bg-card);
            overflow: hidden;
            box-shadow: var(--shadow-card), var(--shadow-glow);
            position: relative;
        }
        .banner-image-wrapper::after {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: var(--radius-lg);
            box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
            pointer-events: none;
        }
        .banner-image-placeholder {
            width: 100%;
            height: auto;
            min-height: 380px;
            display: block;
            background: #0f1328;
            object-fit: cover;
            transition: filter var(--transition-smooth);
        }

        /* ========== SECTION COMMONS ========== */
        .section-padding {
            padding: 85px 1.5rem;
            position: relative;
        }
        .section-padding.alt-bg {
            background: var(--bg-surface);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }
        .section-header {
            text-align: center;
            margin-bottom: 3.5rem;
        }
        .section-eyebrow {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            color: var(--cyan);
            margin-bottom: 0.6rem;
        }
        .section-title {
            font-size: clamp(1.8rem, 3.5vw, 2.3rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 0.8rem;
            color: #ffffff;
        }
        .section-desc {
            color: var(--text-muted);
            max-width: 620px;
            margin: 0 auto;
            font-size: 1.02rem;
            line-height: 1.6;
        }

        .grid-3 {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }
        .grid-4 {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.2rem;
        }

        /* ========== CARDS ========== */
        .card-creative {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 2rem 1.8rem;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }
        .card-creative::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--cyan), transparent);
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }
        .card-creative:hover {
            border-color: var(--border-glow);
            background: var(--bg-card-hover);
            transform: translateY(-3px);
            box-shadow: var(--shadow-card), 0 0 30px rgba(34, 211, 238, 0.05);
        }
        .card-creative:hover::before {
            opacity: 1;
        }
        .card-icon-wrap {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 46px;
            height: 46px;
            border-radius: 12px;
            margin-bottom: 1.2rem;
            font-size: 1.4rem;
            flex-shrink: 0;
        }
        .card-icon-wrap.blue {
            background: rgba(59, 130, 246, 0.15);
            color: #60a5fa;
        }
        .card-icon-wrap.cyan {
            background: rgba(34, 211, 238, 0.15);
            color: #38bdf8;
        }
        .card-icon-wrap.emerald {
            background: rgba(52, 211, 153, 0.15);
            color: #4ade80;
        }
        .card-icon-wrap.amber {
            background: rgba(251, 191, 36, 0.15);
            color: #fbbf24;
        }
        .card-creative h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.55rem;
            color: #ffffff;
            letter-spacing: -0.01em;
        }
        .card-creative p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        /* ========== STATS PULSE SECTION ========== */
        .stats-strip {
            max-width: 1100px;
            margin: 3rem auto 0 auto;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            text-align: center;
        }
        .stat-item {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 2rem 1.2rem;
            transition: all var(--transition-smooth);
            position: relative;
        }
        .stat-item:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-card);
        }
        .stat-number {
            font-size: 2.6rem;
            font-weight: 900;
            letter-spacing: -0.03em;
            background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 0.3rem;
            font-family: var(--font-mono);
        }
        .stat-number.accent {
            background: linear-gradient(135deg, var(--cyan) 0%, var(--primary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .stat-label {
            font-size: 0.88rem;
            color: var(--text-muted);
            font-weight: 500;
        }
        .stat-pulse {
            position: absolute;
            top: 50%;
            left: 50%;
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: rgba(34, 211, 238, 0.04);
            transform: translate(-50%, -50%);
            animation: statPulse 3s ease-in-out infinite;
            pointer-events: none;
        }
        @keyframes statPulse {
            0%,
            100% {
                transform: translate(-50%, -50%) scale(0.8);
                opacity: 0;
            }
            50% {
                transform: translate(-50%, -50%) scale(1.6);
                opacity: 0.6;
            }
        }

        /* ========== TIMELINE ========== */
        .timeline-wrap {
            max-width: 900px;
            margin: 3rem auto 0 auto;
            position: relative;
            padding-left: 2.5rem;
        }
        .timeline-wrap::before {
            content: '';
            position: absolute;
            left: 14px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, var(--border-glow) 0%, var(--border-subtle) 100%);
        }
        .timeline-item {
            position: relative;
            margin-bottom: 2rem;
            padding-left: 2rem;
        }
        .timeline-dot {
            position: absolute;
            left: -2.5rem;
            top: 6px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--cyan);
            box-shadow: 0 0 12px var(--cyan-glow);
            border: 2px solid var(--bg-deep);
            z-index: 2;
        }
        .timeline-year {
            font-size: 0.78rem;
            font-weight: 700;
            color: var(--cyan);
            letter-spacing: 0.06em;
            margin-bottom: 0.2rem;
        }
        .timeline-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 0.25rem;
        }
        .timeline-item p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.5;
        }

        /* ========== COMPARISON TABLE ========== */
        .comparison-table-wrap {
            max-width: 950px;
            margin: 2.5rem auto 0 auto;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-card);
        }
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
            min-width: 600px;
        }
        .comparison-table thead th {
            background: var(--bg-card);
            padding: 1rem 1.2rem;
            text-align: left;
            font-weight: 700;
            color: #ffffff;
            border-bottom: 1px solid var(--border-card);
            white-space: nowrap;
        }
        .comparison-table tbody td {
            padding: 0.9rem 1.2rem;
            border-bottom: 1px solid var(--border-subtle);
            color: var(--text-secondary);
            white-space: nowrap;
        }
        .comparison-table tbody tr:hover td {
            background: rgba(255, 255, 255, 0.015);
        }
        .badge-check {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 600;
            background: rgba(52, 211, 153, 0.12);
            color: var(--emerald);
        }
        .badge-dash {
            color: var(--text-dim);
        }

        /* ========== CTA BANNER ========== */
        .cta-banner {
            max-width: 1000px;
            margin: 0 auto;
            background: linear-gradient(135deg, rgba(37, 99, 235, 0.2) 0%, rgba(6, 182, 212, 0.12) 100%);
            border: 1px solid rgba(59, 130, 246, 0.3);
            border-radius: var(--radius-lg);
            padding: 3rem 2.5rem;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(59, 130, 246, 0.08);
            pointer-events: none;
        }
        .cta-banner h3 {
            font-size: 1.7rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 0.8rem;
            position: relative;
            z-index: 1;
        }
        .cta-banner p {
            color: var(--text-muted);
            margin-bottom: 2rem;
            position: relative;
            z-index: 1;
        }

        /* ========== HISTORY BOX ========== */
        .history-box {
            max-width: 1050px;
            margin: 3rem auto 0 auto;
            background: linear-gradient(175deg, rgba(15, 19, 34, 0.7) 0%, rgba(17, 21, 39, 1) 100%);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 2.2rem 2.5rem;
            position: relative;
        }
        .history-box::after {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: var(--radius-md);
            box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.02);
            pointer-events: none;
        }
        .history-box h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--cyan);
            letter-spacing: -0.01em;
        }
        .history-box p {
            color: var(--text-muted);
            margin-bottom: 0.8rem;
            font-size: 0.93rem;
            line-height: 1.65;
        }

        /* ========== FOOTER ========== */
        .footer {
            background: #030408;
            border-top: 1px solid var(--border-subtle);
            padding: 55px 1.5rem 28px 1.5rem;
            font-size: 0.88rem;
            color: var(--text-muted);
        }
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 2rem;
        }
        .footer-col h4 {
            color: var(--text-primary);
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 1rem;
            letter-spacing: 0.01em;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 0.5rem;
        }
        .footer-col a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: #ffffff;
        }
        .footer-bottom {
            max-width: 1200px;
            margin: 35px auto 0 auto;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            text-align: center;
            font-size: 0.8rem;
            color: var(--text-dim);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-container {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-container {
                justify-content: center;
            }
            .hero-title {
                font-size: 1.9rem;
            }
            .hero-subtitle {
                font-size: 0.95rem;
            }
            .grid-3,
            .grid-4 {
                grid-template-columns: 1fr;
            }
            .stats-strip {
                grid-template-columns: 1fr 1fr;
                gap: 0.8rem;
            }
            .stat-number {
                font-size: 1.9rem;
            }
            .section-padding {
                padding: 55px 1rem;
            }
            .timeline-wrap {
                padding-left: 1.5rem;
            }
            .timeline-item {
                padding-left: 1.2rem;
            }
            .timeline-dot {
                left: -1.5rem;
            }
            .footer-container {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .cta-banner {
                padding: 2rem 1.5rem;
            }
            .btn-primary,
            .btn-outline {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
        }
        @media (max-width: 480px) {
            .stats-strip {
                grid-template-columns: 1fr;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .comparison-table-wrap {
                font-size: 0.75rem;
            }
        }