:root {
            --hhx9et-primary: #188fff;
            --hhx9et-secondary: #00377a;
            --hhx9et-accent: #00d4ff;
            --hhx9et-text: #1e293b;
            --hhx9et-text-light: #64748b;
            --hhx9et-bg: #f8fafc;
            --hhx9et-white: #ffffff;
            --hhx9et-error: #ef4444;
            --hhx9et-success: #22c55e;
            --hhx9et-spacing: 8px;
            --hhx9et-radius: 16px;
            --hhx9et-container-width: 1100px;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
            background-color: var(--hhx9et-bg);
            color: var(--hhx9et-text);
            line-height: 1.6;
            word-break: keep-all;
            overflow-x: hidden;
        }

        /* Typography */
        h1, h2, h3, h4 {
            line-height: 1.2;
            color: var(--hhx9et-secondary);
            margin-bottom: calc(var(--hhx9et-spacing) * 2);
            word-break: break-word;
        }

        h1 { font-size: clamp(2rem, 5vw + 1rem, 3.5rem); font-weight: 800; }
        h2 { font-size: clamp(1.5rem, 3vw + 0.5rem, 2.2rem); font-weight: 700; border-left: 6px solid var(--hhx9et-primary); padding-left: 16px; }
        p { font-size: clamp(1rem, 1vw + 0.5rem, 1.125rem); line-height: 1.8; margin-bottom: 1.5rem; word-break: break-word; }

        /* Navigation */
        .hhx9et-navbar {
            position: fixed;
            top: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            z-index: 1000;
            box-shadow: 0 2px 20px rgba(0,0,0,0.05);
            border-bottom: 1px solid rgba(0,0,0,0.05);
        }

        .hhx9et-nav-container {
            max-width: var(--hhx9et-container-width);
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px 24px;
            flex-wrap: wrap;
        }

        .hhx9et-logo {
            flex: 0 0 auto;
            min-width: 0;
        }

        .hhx9et-logo img {
            height: 40px;
            width: auto;
            display: block;
        }

        .hhx9et-menu {
            display: flex;
            list-style: none;
            gap: 20px;
            flex-wrap: wrap;
            min-width: 0;
        }

        .hhx9et-menu a {
            text-decoration: none;
            color: var(--hhx9et-text);
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.3s ease;
            padding: 8px 4px;
            position: relative;
        }

        .hhx9et-menu a:hover, .hhx9et-menu a.active {
            color: var(--hhx9et-primary);
        }

        .hhx9et-menu a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--hhx9et-primary);
        }

        /* Hero Section - Unique Diagonal Split */
        .hhx9et-hero {
            padding: 160px 24px 80px;
            background: linear-gradient(135deg, #f0f7ff 0%, #ffffff 100%);
            position: relative;
            overflow: hidden;
        }

        .hhx9et-hero::before {
            content: '';
            position: absolute;
            top: -10%;
            right: -10%;
            width: 40%;
            height: 60%;
            background: radial-gradient(circle, rgba(24, 143, 255, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            z-index: 0;
        }

        .hhx9et-hero-content {
            max-width: var(--hhx9et-container-width);
            margin: 0 auto;
            position: relative;
            z-index: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }

        .hhx9et-badge {
            background: rgba(24, 143, 255, 0.1);
            color: var(--hhx9et-primary);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.875rem;
            font-weight: 600;
            margin-bottom: 24px;
            display: inline-block;
        }

        /* Warning Box UI */
        .hhx9et-error-mockup {
            background: #1e293b;
            border-radius: 12px;
            padding: 24px;
            width: 100%;
            max-width: 700px;
            margin-top: 48px;
            box-shadow: 0 30px 60px rgba(0,0,0,0.15);
            text-align: left;
            border: 1px solid rgba(255,255,255,0.1);
        }

        .hhx9et-mockup-header {
            display: flex;
            gap: 8px;
            margin-bottom: 16px;
        }

        .hhx9et-dot { width: 12px; height: 12px; border-radius: 50%; }
        .hhx9et-dot.red { background: #ff5f56; }
        .hhx9et-dot.yellow { background: #ffbd2e; }
        .hhx9et-dot.green { background: #27c93f; }

        .hhx9et-code-text {
            color: #38bdf8;
            font-family: "Courier New", Courier, monospace;
            font-size: 0.9rem;
        }

        .hhx9et-error-msg {
            color: #fca5a5;
            margin-top: 8px;
            font-weight: bold;
        }

        /* Section Layouts */
        .hhx9et-section {
            padding: 80px 24px;
        }

        .hhx9et-container {
            max-width: var(--hhx9et-container-width);
            margin: 0 auto;
        }

        .hhx9et-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
            margin-top: 48px;
        }

        .hhx9et-card {
            background: var(--hhx9et-white);
            padding: 40px;
            border-radius: var(--hhx9et-radius);
            box-shadow: 0 4px 6px rgba(0,0,0,0.02);
            transition: all 0.3s ease;
            border: 1px solid #edf2f7;
            min-width: 0;
        }

        .hhx9et-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.05);
            border-color: var(--hhx9et-primary);
        }

        .hhx9et-step-num {
            width: 48px;
            height: 48px;
            background: var(--hhx9et-primary);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.25rem;
            margin-bottom: 24px;
        }

        /* Industry Specific Section */
        .hhx9et-industry-section {
            background: var(--hhx9et-secondary);
            color: white;
            border-radius: 32px;
            padding: 64px;
            margin: 40px auto;
        }

        .hhx9et-industry-section h2 {
            color: white;
            border-color: var(--hhx9et-accent);
        }

        .hhx9et-industry-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            margin-top: 40px;
        }

        .hhx9et-industry-item {
            flex: 1;
            min-width: 280px;
            background: rgba(255,255,255,0.05);
            padding: 32px;
            border-radius: 20px;
            border: 1px solid rgba(255,255,255,0.1);
        }

        .hhx9et-industry-item h3 { color: var(--hhx9et-accent); }
        .hhx9et-industry-item ul { list-style: none; margin: 16px 0; }
        .hhx9et-industry-item li { margin-bottom: 8px; font-size: 0.9rem; opacity: 0.9; }
        .hhx9et-config-tag {
            display: inline-block;
            background: rgba(0, 212, 255, 0.2);
            color: var(--hhx9et-accent);
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 0.8rem;
            margin-top: 12px;
        }

        /* Footer */
        .hhx9et-footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 80px 24px 40px;
        }

        .hhx9et-footer-grid {
            max-width: var(--hhx9et-container-width);
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 48px;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            padding-bottom: 48px;
        }

        .hhx9et-footer-brand h4 { color: white; margin-bottom: 16px; font-size: 1.5rem; }
        .hhx9et-footer-links h5 { color: white; margin-bottom: 24px; text-transform: uppercase; letter-spacing: 1px; }
        .hhx9et-footer-links ul { list-style: none; }
        .hhx9et-footer-links li { margin-bottom: 12px; }
        .hhx9et-footer-links a { color: #94a3b8; text-decoration: none; transition: color 0.3s; }
        .hhx9et-footer-links a:hover { color: var(--hhx9et-primary); }

        .hhx9et-copyright {
            text-align: center;
            padding-top: 40px;
            font-size: 0.875rem;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .hhx9et-menu { display: none; } /* Simplified for demo, usually a burger menu */
            .hhx9et-hero { padding-top: 120px; }
            .hhx9et-industry-section { padding: 32px; border-radius: 0; }
            .hhx9et-grid { grid-template-columns: 1fr; }
        }

        /* Utility */
        .hhx9et-text-center { text-align: center; }
        .hhx9et-mt-4 { margin-top: 32px; }