:root {
            --hbosco-primary: #d32f2f;
            --hbosco-primary-dark: #b71c1c;
            --hbosco-accent: #1976d2;
            --hbosco-bg-light: #ffffff;
            --hbosco-bg-soft: #f8f9fa;
            --hbosco-text-main: #212121;
            --hbosco-text-muted: #616161;
            --hbosco-border: #e0e0e0;
            --hbosco-card-shadow: 0 10px 30px rgba(0,0,0,0.08);
            --hbosco-container-width: 1300px;
        }

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
            color: var(--hbosco-text-main);
            line-height: 1.7;
            background-color: var(--hbosco-bg-light);
            word-break: keep-all;
            overflow-x: hidden;
        }

        /* Typography */
        h1, h2, h3 {
            line-height: 1.2;
            margin-bottom: 1rem;
            word-break: keep-all;
        }

        h1 { font-size: clamp(2.5rem, 5vw, 4rem); font-weight: 800; }
        h2 { font-size: clamp(1.8rem, 3vw, 2.5rem); font-weight: 700; }
        p { font-size: clamp(1rem, 1vw + 0.5rem, 1.15rem); margin-bottom: 1.5rem; word-break: break-word; }

        .hbosco-container {
            max-width: var(--hbosco-container-width);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* Navigation */
        .hbosco-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            z-index: 1000;
            border-bottom: 1px solid var(--hbosco-border);
            padding: 12px 0;
        }

        .hbosco-nav-wrapper {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
        }

        .hbosco-logo {
            min-width: 0;
        }

        .hbosco-logo img {
            height: 48px;
            width: auto;
            display: block;
        }

        .hbosco-nav-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 24px;
            margin-left: auto;
        }

        .hbosco-nav-menu li { min-width: 0; }

        .hbosco-nav-menu a {
            text-decoration: none;
            color: var(--hbosco-text-main);
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.3s ease;
            position: relative;
            padding: 8px 0;
        }

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

        .hbosco-nav-menu a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--hbosco-primary);
        }

        /* Hero Section - Unique Card Layout */
        .hbosco-hero {
            padding: 160px 0 96px;
            background: radial-gradient(circle at top right, #fff5f5 0%, #ffffff 100%);
            position: relative;
            overflow: hidden;
        }

        .hbosco-hero::before {
            content: '';
            position: absolute;
            top: -10%;
            right: -5%;
            width: 40%;
            height: 60%;
            background: linear-gradient(135deg, rgba(211, 47, 47, 0.05) 0%, transparent 100%);
            transform: rotate(-15deg);
            z-index: 0;
        }

        .hbosco-hero-content {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 900px;
            margin: 0 auto;
        }

        .hbosco-hero-badge {
            display: inline-block;
            background: rgba(211, 47, 47, 0.1);
            color: var(--hbosco-primary);
            padding: 6px 16px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 24px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .hbosco-download-card {
            background: #ffffff;
            border: 1px solid var(--hbosco-border);
            border-radius: 24px;
            padding: 48px;
            margin-top: 48px;
            box-shadow: var(--hbosco-card-shadow);
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            align-items: center;
            text-align: left;
        }

        .hbosco-card-info { flex: 1; min-width: 300px; }
        .hbosco-card-action { flex: 0 0 auto; min-width: 250px; }

        .hbosco-btn {
            display: inline-block;
            padding: 16px 40px;
            border-radius: 12px;
            font-weight: 700;
            text-decoration: none;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            cursor: pointer;
            text-align: center;
            border: none;
        }

        .hbosco-btn-primary {
            background: linear-gradient(135deg, var(--hbosco-primary) 0%, var(--hbosco-primary-dark) 100%);
            color: #fff;
            box-shadow: 0 8px 20px rgba(211, 47, 47, 0.3);
            width: 100%;
            font-size: 1.2rem;
        }

        .hbosco-btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 25px rgba(211, 47, 47, 0.4);
        }

        /* Features / Algorithmic Layers */
        .hbosco-layers {
            padding: 96px 0;
            background-color: var(--hbosco-bg-soft);
        }

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

        .hbosco-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
            gap: 32px;
        }

        .hbosco-layer-card {
            background: #fff;
            padding: 40px;
            border-radius: 20px;
            border: 1px solid var(--hbosco-border);
            transition: border-color 0.3s ease;
            min-width: 0;
        }

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

        .hbosco-layer-name {
            color: var(--hbosco-primary);
            font-weight: 700;
            font-size: 1.5rem;
            margin-bottom: 16px;
        }

        .hbosco-capability-list {
            list-style: none;
            margin-top: 24px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .hbosco-capability-tag {
            background: #f1f1f1;
            padding: 6px 14px;
            border-radius: 6px;
            font-size: 0.85rem;
            color: var(--hbosco-text-muted);
            min-width: 0;
        }

        /* Protocol Matrix Section */
        .hbosco-protocols {
            padding: 96px 0;
        }

        .hbosco-protocol-row {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            align-items: flex-start;
        }

        .hbosco-protocol-col {
            flex: 1;
            min-width: 320px;
        }

        .hbosco-protocol-item {
            margin-bottom: 40px;
            padding-left: 24px;
            border-left: 4px solid var(--hbosco-primary);
        }

        .hbosco-protocol-title {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .hbosco-endpoints {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 12px;
        }

        .hbosco-endpoint-chip {
            border: 1px solid var(--hbosco-border);
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 0.85rem;
        }

        /* Use Case Matrix */
        .hbosco-matrix {
            padding: 96px 0;
            background-color: var(--hbosco-text-main);
            color: #fff;
        }

        .hbosco-matrix-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
        }

        .hbosco-matrix-card {
            background: rgba(255, 255, 255, 0.05);
            padding: 32px;
            border-radius: 16px;
            border: 1px solid rgba(255,255,255,0.1);
            min-width: 0;
        }

        .hbosco-matrix-industry {
            color: var(--hbosco-primary);
            font-size: 0.9rem;
            font-weight: 700;
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .hbosco-matrix-problem {
            font-weight: 600;
            margin-bottom: 16px;
            color: #e0e0e0;
        }

        .hbosco-matrix-solution {
            font-size: 0.95rem;
            line-height: 1.6;
            color: #bdbdbd;
        }

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

        .hbosco-footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 48px;
            margin-bottom: 64px;
        }

        .hbosco-footer-brand {
            flex: 1;
            min-width: 280px;
        }

        .hbosco-footer-brand span {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--hbosco-primary);
            display: block;
            margin-bottom: 16px;
        }

        .hbosco-footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 64px;
        }

        .hbosco-link-group { min-width: 140px; }

        .hbosco-link-group h4 {
            font-size: 1.1rem;
            margin-bottom: 24px;
        }

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

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

        .hbosco-link-group a {
            text-decoration: none;
            color: var(--hbosco-text-muted);
            transition: color 0.3s ease;
        }

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

        .hbosco-copyright {
            text-align: center;
            padding-top: 40px;
            border-top: 1px solid var(--hbosco-border);
            color: var(--hbosco-text-muted);
            font-size: 0.9rem;
        }

        /* Responsive Fixes */
        @media (max-width: 768px) {
            .hbosco-nav-menu {
                display: none; /* In a real site, implement a burger menu */
            }
            .hbosco-hero { padding: 120px 0 64px; }
            .hbosco-download-card { padding: 24px; }
            .hbosco-grid { grid-template-columns: 1fr; }
            .hbosco-protocol-row { flex-direction: column; }
            .hbosco-matrix-grid { grid-template-columns: 1fr; }
        }

        /* SEO Structured Data */
        <script type="application/ld+json">
        {
          "@context": "https://schema.org",
          "@type": "SoftwareApplication",
          "name": "Beyond Compare",
          "operatingSystem": "Windows, macOS, Linux",
          "applicationCategory": "UtilityApplication",
          "offers": {
            "@type": "Offer",
            "price": "0",
            "priceCurrency": "CNY"
          }
        }
        </script>