:root {
            --px5cu-primary: #bf0000;
            --px5cu-primary-dark: #8e0000;
            --px5cu-secondary: #2c3e50;
            --px5cu-accent: #00a8ff;
            --px5cu-bg-light: #f8f9fa;
            --px5cu-bg-dark: #1a1a1a;
            --px5cu-text-main: #333333;
            --px5cu-text-muted: #666666;
            --px5cu-white: #ffffff;
            --px5cu-glass: rgba(255, 255, 255, 0.9);
            --px5cu-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
        }

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

        body {
            font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            line-height: 1.7;
            color: var(--px5cu-text-main);
            background-color: var(--px5cu-white);
            overflow-x: hidden;
            word-break: keep-all;
        }

        /* Typography */
        h1, h2, h3 {
            line-height: 1.2;
            margin-bottom: 1.5rem;
            color: var(--px5cu-secondary);
            word-break: break-word;
        }

        p {
            margin-bottom: 1.2rem;
            word-break: break-word;
        }

        /* Layout */
        .px5cu-container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Navigation */
        .px5cu-navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: var(--px5cu-glass);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
            padding: 12px 0;
        }

        .px5cu-nav-wrapper {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
        }

        .px5cu-logo {
            min-width: 0;
        }

        .px5cu-logo img {
            height: 40px;
            display: block;
        }

        .px5cu-nav-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 16px;
        }

        .px5cu-nav-menu a {
            text-decoration: none;
            color: var(--px5cu-secondary);
            font-size: 0.9rem;
            font-weight: 500;
            transition: color 0.3s;
            padding: 8px 4px;
            border-bottom: 2px solid transparent;
        }

        .px5cu-nav-menu a:hover {
            color: var(--px5cu-primary);
        }

        .px5cu-nav-menu a.active {
            color: var(--px5cu-primary);
            border-bottom-color: var(--px5cu-primary);
        }

        /* Hero Section */
        .px5cu-hero {
            padding: 160px 0 96px;
            background: radial-gradient(circle at top right, #fff5f5 0%, #ffffff 100%);
            text-align: center;
            position: relative;
        }

        .px5cu-hero::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: linear-gradient(rgba(191, 0, 0, 0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(191, 0, 0, 0.03) 1px, transparent 1px);
            background-size: 40px 40px;
            z-index: 0;
        }

        .px5cu-hero-content {
            position: relative;
            z-index: 1;
        }

        .px5cu-hero-title {
            font-size: clamp(2rem, 5vw + 1rem, 4rem);
            font-weight: 800;
            margin-bottom: 24px;
            color: var(--px5cu-secondary);
        }

        .px5cu-hero-subtitle {
            font-size: clamp(1rem, 2vw + 0.5rem, 1.25rem);
            max-width: 800px;
            margin: 0 auto 40px;
            color: var(--px5cu-text-muted);
        }

        /* Security Cards Grid */
        .px5cu-section {
            padding: 96px 0;
        }

        .px5cu-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
        }

        .px5cu-card {
            background: var(--px5cu-white);
            border: 1px solid rgba(0,0,0,0.08);
            border-radius: 16px;
            padding: 32px;
            transition: transform 0.3s, box-shadow 0.3s;
            min-width: 0;
            display: flex;
            flex-direction: column;
        }

        .px5cu-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--px5cu-shadow);
        }

        .px5cu-card-icon {
            width: 48px;
            height: 48px;
            background: rgba(191, 0, 0, 0.1);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 24px;
        }

        .px5cu-card-icon svg {
            width: 24px;
            height: 24px;
            fill: var(--px5cu-primary);
        }

        /* Enterprise Workflow Section */
        .px5cu-enterprise-section {
            background-color: var(--px5cu-bg-dark);
            color: var(--px5cu-white);
            border-radius: 40px;
            margin: 40px 24px;
            padding: 80px 40px;
        }

        .px5cu-enterprise-section h2 {
            color: var(--px5cu-white);
            text-align: center;
        }

        .px5cu-workflow-item {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            margin-bottom: 64px;
            align-items: center;
        }

        .px5cu-workflow-item:nth-child(even) {
            flex-direction: row-reverse;
        }

        .px5cu-workflow-content {
            flex: 1;
            min-width: 300px;
        }

        .px5cu-workflow-tag {
            display: inline-block;
            padding: 4px 12px;
            background: var(--px5cu-primary);
            border-radius: 4px;
            font-size: 0.8rem;
            margin-bottom: 16px;
            text-transform: uppercase;
        }

        .px5cu-efficiency-badge {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            background: rgba(0, 168, 255, 0.2);
            border: 1px solid var(--px5cu-accent);
            border-radius: 50px;
            color: var(--px5cu-accent);
            font-weight: bold;
            margin-top: 16px;
        }

        /* Security Checklist */
        .px5cu-checklist {
            list-style: none;
        }

        .px5cu-checklist li {
            position: relative;
            padding-left: 32px;
            margin-bottom: 16px;
        }

        .px5cu-checklist li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--px5cu-primary);
            font-weight: bold;
        }

        /* Footer */
        .px5cu-footer {
            background: var(--px5cu-bg-light);
            padding: 80px 0 40px;
            border-top: 1px solid rgba(0,0,0,0.05);
        }

        .px5cu-footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 48px;
            margin-bottom: 48px;
        }

        .px5cu-footer-brand h3 {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--px5cu-primary);
        }

        .px5cu-footer-links h4 {
            margin-bottom: 24px;
            font-size: 1rem;
        }

        .px5cu-footer-links ul {
            list-style: none;
        }

        .px5cu-footer-links a {
            text-decoration: none;
            color: var(--px5cu-text-muted);
            font-size: 0.9rem;
            display: block;
            margin-bottom: 12px;
            transition: color 0.3s;
        }

        .px5cu-footer-links a:hover {
            color: var(--px5cu-primary);
        }

        .px5cu-footer-bottom {
            text-align: center;
            padding-top: 40px;
            border-top: 1px solid rgba(0,0,0,0.05);
            color: var(--px5cu-text-muted);
            font-size: 0.85rem;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .px5cu-nav-menu {
                display: none; /* In a real project, add a mobile menu toggle */
            }
            .px5cu-enterprise-section {
                margin: 20px 12px;
                padding: 40px 20px;
            }
        }