:root {
            --hbosco-primary: #9c1c1c;
            --hbosco-primary-light: #c0392b;
            --hbosco-dark: #2c3e50;
            --hbosco-gray-bg: #f8f9fa;
            --hbosco-text: #333333;
            --hbosco-text-light: #666666;
            --hbosco-border: #e1e4e8;
            --hbosco-white: #ffffff;
            --hbosco-spacing-unit: 8px;
            --hbosco-container-width: 1100px;
            --hbosco-shadow: 0 4px 20px rgba(0,0,0,0.08);
            --hbosco-transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
        }

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

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

        /* Typography */
        h1, h2, h3, h4 {
            line-height: 1.3;
            color: var(--hbosco-dark);
            margin-bottom: calc(var(--hbosco-spacing-unit) * 2);
            white-space: normal;
        }

        p {
            font-size: clamp(1rem, 0.5vw + 0.8rem, 1.1rem);
            word-break: break-word;
            overflow-wrap: break-word;
            margin-bottom: calc(var(--hbosco-spacing-unit) * 2);
        }

        /* Navigation */
        .hbosco-navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--hbosco-border);
            padding: 16px 0;
        }

        .hbosco-nav-container {
            max-width: var(--hbosco-container-width);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
        }

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

        .hbosco-logo img {
            height: 40px;
            display: block;
        }

        .hbosco-nav-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 20px;
            min-width: 0;
        }

        .hbosco-nav-link {
            text-decoration: none;
            color: var(--hbosco-dark);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--hbosco-transition);
            padding: 5px 0;
            position: relative;
        }

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

        .hbosco-nav-link.hbosco-active {
            color: var(--hbosco-primary);
        }

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

        /* Hero Section - Unique Center Typography */
        .hbosco-hero {
            padding: 160px 24px 80px;
            background: radial-gradient(circle at top right, #fff5f5, #ffffff);
            text-align: center;
            border-bottom: 1px solid var(--hbosco-border);
        }

        .hbosco-hero-inner {
            max-width: 900px;
            margin: 0 auto;
        }

        .hbosco-hero-title {
            font-size: clamp(2.2rem, 4vw + 1rem, 3.8rem);
            font-weight: 800;
            letter-spacing: -1px;
            color: var(--hbosco-dark);
            margin-bottom: 24px;
        }

        .hbosco-hero-subtitle {
            font-size: clamp(1.1rem, 1.5vw + 0.5rem, 1.4rem);
            color: var(--hbosco-text-light);
            max-width: 700px;
            margin: 0 auto 40px;
        }

        .hbosco-hero-badge {
            display: inline-block;
            background: var(--hbosco-primary);
            color: white;
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.9rem;
            margin-bottom: 24px;
            text-transform: uppercase;
            font-weight: bold;
        }

        /* Pricing Grid */
        .hbosco-section {
            padding: 80px 24px;
            max-width: var(--hbosco-container-width);
            margin: 0 auto;
        }

        .hbosco-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
            margin-top: 48px;
        }

        .hbosco-price-card {
            background: var(--hbosco-white);
            border: 1px solid var(--hbosco-border);
            border-radius: 16px;
            padding: 48px 32px;
            transition: var(--hbosco-transition);
            display: flex;
            flex-direction: column;
            min-width: 0;
            position: relative;
            overflow: hidden;
        }

        .hbosco-price-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--hbosco-shadow);
            border-color: var(--hbosco-primary);
        }

        .hbosco-price-card.hbosco-featured {
            border: 2px solid var(--hbosco-primary);
            background: linear-gradient(180deg, #fffafa 0%, #ffffff 100%);
        }

        .hbosco-card-tag {
            position: absolute;
            top: 20px;
            right: -30px;
            background: var(--hbosco-primary);
            color: white;
            padding: 5px 40px;
            transform: rotate(45deg);
            font-size: 0.75rem;
            font-weight: bold;
        }

        .hbosco-price-header h3 {
            font-size: 1.8rem;
            margin-bottom: 8px;
        }

        .hbosco-price-val {
            font-size: 2.5rem;
            font-weight: 800;
            margin-bottom: 24px;
            color: var(--hbosco-primary);
        }

        .hbosco-feature-list {
            list-style: none;
            margin-bottom: 40px;
            flex-grow: 1;
        }

        .hbosco-feature-item {
            padding: 12px 0;
            border-bottom: 1px solid #f0f0f0;
            display: flex;
            align-items: center;
            font-size: 0.95rem;
        }

        .hbosco-feature-item::before {
            content: '✓';
            margin-right: 12px;
            color: var(--hbosco-primary);
            font-weight: bold;
        }

        .hbosco-btn {
            display: inline-block;
            padding: 14px 28px;
            background: var(--hbosco-dark);
            color: white;
            text-decoration: none;
            border-radius: 8px;
            font-weight: 600;
            text-align: center;
            transition: var(--hbosco-transition);
        }

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

        .hbosco-btn:hover {
            opacity: 0.9;
            transform: scale(1.02);
        }

        /* Intelligence Layers Section */
        .hbosco-bg-dark {
            background-color: var(--hbosco-dark);
            color: white;
        }

        .hbosco-bg-dark h2, .hbosco-bg-dark h3 {
            color: white;
        }

        .hbosco-tech-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            margin-top: 48px;
        }

        .hbosco-tech-card {
            flex: 1;
            min-width: 300px;
            background: rgba(255, 255, 255, 0.05);
            padding: 40px;
            border-radius: 12px;
            border-left: 4px solid var(--hbosco-primary);
        }

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

        .hbosco-caps-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 20px;
        }

        .hbosco-cap-tag {
            background: rgba(255,255,255,0.1);
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 0.85rem;
        }

        /* Protocols & Case Matrix */
        .hbosco-protocol-section {
            display: flex;
            flex-wrap: wrap;
            gap: 64px;
            align-items: flex-start;
        }

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

        .hbosco-matrix-item {
            margin-bottom: 32px;
            padding: 24px;
            background: var(--hbosco-gray-bg);
            border-radius: 12px;
        }

        .hbosco-matrix-industry {
            font-weight: bold;
            color: var(--hbosco-primary);
            margin-bottom: 8px;
            display: block;
            text-transform: uppercase;
            font-size: 0.85rem;
            letter-spacing: 1px;
        }

        .hbosco-matrix-problem {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        /* Footer */
        .hbosco-footer {
            background: #1a1a1a;
            color: #999;
            padding: 64px 24px;
            text-align: center;
        }

        .hbosco-footer-brand {
            color: white;
            font-size: 1.5rem;
            font-weight: bold;
            margin-bottom: 24px;
        }

        .hbosco-footer-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 24px;
            list-style: none;
            margin-bottom: 32px;
        }

        .hbosco-footer-link {
            color: #999;
            text-decoration: none;
            transition: var(--hbosco-transition);
        }

        .hbosco-footer-link:hover {
            color: white;
        }

        .hbosco-copyright {
            font-size: 0.85rem;
            border-top: 1px solid #333;
            padding-top: 32px;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .hbosco-nav-menu {
                display: none; /* Simplification for mobile */
            }
            .hbosco-hero {
                padding: 120px 24px 60px;
            }
            .hbosco-grid {
                grid-template-columns: 1fr;
            }
            .hbosco-tech-grid {
                flex-direction: column;
            }
            .hbosco-section {
                padding: 48px 24px;
            }
        }