:root {
            --hbosco-primary: #8b1a1a;
            --hbosco-primary-light: #a62a2a;
            --hbosco-accent: #f5f5f7;
            --hbosco-text-dark: #1d1d1f;
            --hbosco-text-gray: #86868b;
            --hbosco-white: #ffffff;
            --hbosco-bg-warm: #fbfbfd;
            --hbosco-border: rgba(0,0,0,0.08);
            --hbosco-shadow: 0 10px 30px rgba(0,0,0,0.05);
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--hbosco-text-dark);
            background-color: var(--hbosco-bg-warm);
            line-height: 1.6;
            word-break: keep-all;
        }

        /* Typography */
        h1, h2, h3 {
            line-height: 1.2;
            word-break: keep-all;
            white-space: normal;
        }

        p {
            line-height: 1.8;
            word-break: break-word;
            overflow-wrap: break-word;
        }

        /* Layout */
        .hbosco-container {
            max-width: 1300px;
            margin: 0 auto;
            padding: 0 48px;
        }

        @media (max-width: 768px) {
            .hbosco-container {
                padding: 0 24px;
            }
        }

        /* Navigation */
        .hbosco-header {
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--hbosco-border);
            transition: all 0.3s ease;
        }

        .hbosco-nav-wrapper {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            height: 72px;
            min-width: 0;
        }

        .hbosco-logo {
            display: flex;
            align-items: center;
            min-width: 0;
        }

        .hbosco-logo img {
            height: 36px;
            width: auto;
        }

        .hbosco-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 24px;
            min-width: 0;
        }

        .hbosco-menu li a {
            text-decoration: none;
            color: var(--hbosco-text-dark);
            font-size: 14px;
            font-weight: 500;
            transition: color 0.3s;
            padding: 8px 0;
            display: block;
        }

        .hbosco-menu li a:hover,
        .hbosco-menu li a.hbosco-active {
            color: var(--hbosco-primary);
        }

        .hbosco-menu li a.hbosco-active {
            border-bottom: 2px solid var(--hbosco-primary);
        }

        /* Hero Download Section */
        .hbosco-hero {
            padding-top: 160px;
            padding-bottom: 96px;
            background: linear-gradient(180deg, #fff 0%, #f5f5f7 100%);
            text-align: center;
        }

        .hbosco-hero-tag {
            display: inline-block;
            background: var(--hbosco-primary);
            color: white;
            padding: 4px 16px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 24px;
            letter-spacing: 1px;
        }

        .hbosco-hero-title {
            font-size: clamp(2rem, 5vw + 1rem, 3.5rem);
            font-weight: 800;
            color: var(--hbosco-text-dark);
            margin-bottom: 24px;
            max-width: 900px;
            margin-left: auto;
            margin-right: auto;
        }

        .hbosco-hero-subtitle {
            font-size: clamp(1rem, 1.5vw + 0.5rem, 1.25rem);
            color: var(--hbosco-text-gray);
            max-width: 700px;
            margin: 0 auto 48px;
        }

        /* Download Matrix */
        .hbosco-download-matrix {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            justify-content: center;
            margin-top: 48px;
        }

        .hbosco-dl-card {
            flex: 1;
            min-width: 300px;
            max-width: 380px;
            background: var(--hbosco-white);
            border-radius: 24px;
            padding: 40px;
            border: 1px solid var(--hbosco-border);
            box-shadow: var(--hbosco-shadow);
            transition: transform 0.3s, box-shadow 0.3s;
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .hbosco-dl-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.1);
        }

        .hbosco-os-icon {
            font-size: 48px;
            margin-bottom: 16px;
        }

        .hbosco-os-name {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .hbosco-os-ver {
            font-size: 14px;
            color: var(--hbosco-text-gray);
            margin-bottom: 32px;
        }

        .hbosco-btn-dl {
            width: 100%;
            background: var(--hbosco-primary);
            color: white;
            text-decoration: none;
            padding: 16px 32px;
            border-radius: 12px;
            font-weight: 600;
            transition: background 0.3s;
            text-align: center;
        }

        .hbosco-btn-dl:hover {
            background: var(--hbosco-primary-light);
        }

        /* Algorithmic Intelligence Section */
        .hbosco-section {
            padding: 96px 0;
            background-color: var(--hbosco-white);
        }

        .hbosco-section-header {
            text-align: center;
            margin-bottom: 64px;
        }

        .hbosco-section-title {
            font-size: clamp(1.5rem, 3vw + 0.5rem, 2.5rem);
            margin-bottom: 16px;
        }

        .hbosco-algo-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
        }

        .hbosco-algo-item {
            flex: 1;
            min-width: 300px;
            background: var(--hbosco-accent);
            padding: 48px;
            border-radius: 24px;
        }

        .hbosco-algo-name {
            font-size: 24px;
            font-weight: 700;
            color: var(--hbosco-primary);
            margin-bottom: 16px;
        }

        .hbosco-algo-desc {
            margin-bottom: 24px;
            color: var(--hbosco-text-dark);
            font-weight: 500;
        }

        .hbosco-capabilities {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .hbosco-cap-tag {
            background: rgba(139, 26, 26, 0.08);
            color: var(--hbosco-primary);
            padding: 6px 14px;
            border-radius: 8px;
            font-size: 13px;
            font-weight: 600;
        }

        /* Protocols Section */
        .hbosco-section-dark {
            background: #1d1d1f;
            color: white;
            padding: 96px 0;
        }

        .hbosco-protocol-container {
            display: flex;
            flex-wrap: wrap;
            gap: 64px;
            align-items: flex-start;
        }

        .hbosco-protocol-item {
            flex: 1;
            min-width: 300px;
        }

        .hbosco-protocol-title {
            font-size: 28px;
            margin-bottom: 24px;
            border-left: 4px solid var(--hbosco-primary);
            padding-left: 20px;
        }

        .hbosco-endpoint-list {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 32px;
        }

        .hbosco-endpoint-list li {
            background: rgba(255,255,255,0.1);
            padding: 8px 16px;
            border-radius: 6px;
            font-size: 14px;
        }

        .hbosco-protocol-security {
            color: var(--hbosco-text-gray);
            font-size: 14px;
        }

        /* Matrix Section */
        .hbosco-matrix-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
        }

        .hbosco-matrix-card {
            padding: 40px;
            border: 1px solid var(--hbosco-border);
            border-radius: 20px;
            background: var(--hbosco-white);
            transition: 0.3s;
        }

        .hbosco-matrix-card:hover {
            border-color: var(--hbosco-primary);
        }

        .hbosco-industry-tag {
            font-size: 14px;
            font-weight: 700;
            color: var(--hbosco-text-gray);
            text-transform: uppercase;
            margin-bottom: 16px;
            display: block;
        }

        .hbosco-problem {
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--hbosco-text-dark);
        }

        .hbosco-solution {
            font-size: 15px;
            color: var(--hbosco-text-gray);
        }

        /* Footer */
        .hbosco-footer {
            background: #f5f5f7;
            padding: 80px 0 40px;
            border-top: 1px solid var(--hbosco-border);
        }

        .hbosco-footer-content {
            display: flex;
            flex-wrap: wrap;
            gap: 64px;
            margin-bottom: 64px;
        }

        .hbosco-footer-brand {
            flex: 1.5;
            min-width: 280px;
        }

        .hbosco-brand-name {
            font-size: 24px;
            font-weight: 800;
            color: var(--hbosco-primary);
            margin-bottom: 16px;
        }

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

        .hbosco-link-group h4 {
            font-size: 14px;
            margin-bottom: 24px;
            color: var(--hbosco-text-dark);
        }

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

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

        .hbosco-link-group ul li a {
            text-decoration: none;
            color: var(--hbosco-text-gray);
            font-size: 14px;
            transition: 0.3s;
        }

        .hbosco-link-group ul li a:hover {
            color: var(--hbosco-primary);
        }

        .hbosco-copyright {
            padding-top: 32px;
            border-top: 1px solid var(--hbosco-border);
            text-align: center;
            font-size: 13px;
            color: var(--hbosco-text-gray);
        }

        @media (max-width: 768px) {
            .hbosco-menu {
                display: none; /* Simplification for mobile mobile menu usually handled by JS */
            }
            .hbosco-hero {
                padding-top: 120px;
            }
            .hbosco-algo-item {
                padding: 32px;
            }
        }