:root {
            --h0u505-primary: #8ab4f8;
            --h0u505-bg-dark: #202124;
            --h0u505-surface: #292a2d;
            --h0u505-text-main: #e8eaed;
            --h0u505-text-dim: #9aa0a6;
            --h0u505-success: #81c995;
            --h0u505-spacing-unit: 8px;
            --h0u505-container-width: 1100px;
            --h0u505-font-fluid: clamp(1rem, 1.2vw + 0.5rem, 1.25rem);
        }

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

        body {
            background-color: var(--h0u505-bg-dark);
            color: var(--h0u505-text-main);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
            line-height: 1.6;
            overflow-x: hidden;
            word-break: break-word;
        }

        /* Navigation */
        .h0u505-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background: rgba(32, 33, 36, 0.95);
            backdrop-filter: blur(10px);
            z-index: 1000;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            padding: calc(var(--h0u505-spacing-unit) * 2);
        }

        .h0u505-nav-container {
            max-width: var(--h0u505-container-width);
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
        }

        .h0u505-logo {
            flex: 0 0 auto;
            min-width: 0;
        }

        .h0u505-logo img {
            height: 32px;
            display: block;
        }

        .h0u505-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: calc(var(--h0u505-spacing-unit) * 2);
            min-width: 0;
        }

        .h0u505-menu a {
            text-decoration: none;
            color: var(--h0u505-text-dim);
            font-size: 0.9rem;
            font-weight: 500;
            transition: color 0.3s ease;
            padding: 4px 8px;
            border-radius: 4px;
        }

        .h0u505-menu a:hover {
            color: var(--h0u505-primary);
            background: rgba(138, 180, 248, 0.1);
        }

        .h0u505-menu a.active {
            color: var(--h0u505-primary);
            border-bottom: 2px solid var(--h0u505-primary);
            border-radius: 0;
        }

        /* Hero Section */
        .h0u505-hero {
            padding: 160px 24px 80px;
            text-align: center;
            background: radial-gradient(circle at center, #2d2e31 0%, #202124 100%);
        }

        .h0u505-hero-content {
            max-width: 800px;
            margin: 0 auto;
        }

        .h0u505-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(138, 180, 248, 0.15);
            color: var(--h0u505-primary);
            border-radius: 20px;
            font-size: 0.85rem;
            margin-bottom: 24px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .h0u505-hero h1 {
            font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem);
            line-height: 1.1;
            font-weight: 800;
            margin-bottom: 24px;
            color: #fff;
        }

        .h0u505-hero p {
            font-size: var(--h0u505-font-fluid);
            color: var(--h0u505-text-dim);
            max-width: 600px;
            margin: 0 auto 40px;
        }

        /* Keyboard Visual */
        .h0u505-keyboard-display {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
            margin-top: 48px;
        }

        .h0u505-key {
            background: #3c4043;
            border: 2px solid #5f6368;
            border-radius: 12px;
            padding: 20px 30px;
            font-size: 1.5rem;
            font-weight: 700;
            box-shadow: 0 6px 0 #202124;
            transition: transform 0.1s, box-shadow 0.1s;
            min-width: 80px;
        }

        .h0u505-key:hover {
            transform: translateY(2px);
            box-shadow: 0 4px 0 #202124;
            border-color: var(--h0u505-primary);
        }

        .h0u505-plus {
            font-size: 2rem;
            align-self: center;
            color: var(--h0u505-text-dim);
        }

        /* Security Matrix */
        .h0u505-matrix-section {
            padding: 96px 24px;
            max-width: var(--h0u505-container-width);
            margin: 0 auto;
        }

        .h0u505-section-title {
            font-size: 2.5rem;
            margin-bottom: 48px;
            text-align: left;
            border-left: 6px solid var(--h0u505-primary);
            padding-left: 24px;
        }

        .h0u505-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
        }

        .h0u505-card {
            background: var(--h0u505-surface);
            padding: 40px;
            border-radius: 16px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            display: flex;
            flex-direction: column;
            min-width: 0;
            border: 1px solid rgba(255, 255, 255, 0.05);
        }

        .h0u505-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
            border-color: rgba(138, 180, 248, 0.3);
        }

        .h0u505-card-header {
            font-size: 0.8rem;
            color: var(--h0u505-primary);
            margin-bottom: 16px;
            font-weight: 700;
        }

        .h0u505-card h3 {
            font-size: 1.5rem;
            margin-bottom: 16px;
        }

        .h0u505-card p {
            color: var(--h0u505-text-dim);
            font-size: 0.95rem;
        }

        /* Roadmap Section */
        .h0u505-roadmap {
            background: #17181b;
            padding: 96px 24px;
        }

        .h0u505-roadmap-container {
            max-width: var(--h0u505-container-width);
            margin: 0 auto;
        }

        .h0u505-timeline {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            margin-top: 64px;
        }

        .h0u505-timeline-item {
            flex: 1;
            min-width: 280px;
            background: var(--h0u505-surface);
            padding: 32px;
            border-radius: 12px;
            position: relative;
        }

        .h0u505-timeline-item::before {
            content: "";
            position: absolute;
            top: 0;
            left: 32px;
            width: 2px;
            height: 100%;
            background: var(--h0u505-primary);
            opacity: 0.2;
        }

        .h0u505-year {
            font-size: 2rem;
            font-weight: 800;
            color: var(--h0u505-primary);
            margin-bottom: 16px;
        }

        /* Dynamic Section */
        .h0u505-news-section {
            padding: 96px 24px;
            max-width: var(--h0u505-container-width);
            margin: 0 auto;
        }

        .h0u505-news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 24px;
        }

        /* Footer */
        .h0u505-footer {
            background: #17181b;
            padding: 64px 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            margin-top: 80px;
        }

        .h0u505-footer-container {
            max-width: var(--h0u505-container-width);
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 48px;
        }

        .h0u505-footer-brand {
            flex: 1 1 300px;
            min-width: 0;
        }

        .h0u505-footer-brand h2 {
            font-size: 1.5rem;
            margin-bottom: 16px;
            color: #fff;
        }

        .h0u505-footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            flex: 2 1 600px;
            min-width: 0;
        }

        .h0u505-link-group {
            min-width: 150px;
        }

        .h0u505-link-group h4 {
            margin-bottom: 24px;
            font-size: 0.9rem;
            color: var(--h0u505-primary);
        }

        .h0u505-link-group ul {
            list-style: none;
        }

        .h0u505-link-group li {
            margin-bottom: 12px;
        }

        .h0u505-link-group a {
            color: var(--h0u505-text-dim);
            text-decoration: none;
            font-size: 0.85rem;
            transition: color 0.3s;
        }

        .h0u505-link-group a:hover {
            color: #fff;
        }

        .h0u505-copyright {
            margin-top: 64px;
            text-align: center;
            color: var(--h0u505-text-dim);
            font-size: 0.8rem;
            width: 100%;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .h0u505-nav-container {
                flex-direction: column;
                gap: 16px;
            }
            .h0u505-menu {
                justify-content: center;
            }
            .h0u505-hero h1 {
                font-size: 2.5rem;
            }
            .h0u505-key {
                padding: 15px 20px;
                font-size: 1.2rem;
            }
            .h0u505-section-title {
                font-size: 1.8rem;
            }
        }