:root {
            --o6ip-primary: #bf0000;
            --o6ip-primary-dark: #8e0000;
            --o6ip-secondary: #2c3e50;
            --o6ip-accent: #3498db;
            --o6ip-bg: #fdfdfd;
            --o6ip-text: #333333;
            --o6ip-light-grey: #f4f7f6;
            --o6ip-white: #ffffff;
            --o6ip-spacing: 8px;
            --o6ip-radius: 12px;
            --o6ip-shadow: 0 10px 30px rgba(0,0,0,0.05);
            --o6ip-container-width: 1400px;
        }

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

        body {
            font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            line-height: 1.7;
            color: var(--o6ip-text);
            background-color: var(--o6ip-bg);
            word-break: keep-all;
            overflow-x: hidden;
        }

        /* Layout Helpers */
        .o6ip-container {
            max-width: var(--o6ip-container-width);
            margin: 0 auto;
            padding: 0 48px;
            width: 100%;
        }

        .o6ip-flex {
            display: flex;
            flex-wrap: wrap;
        }

        .o6ip-flex > * {
            min-width: 0;
        }

        /* Navigation */
        .o6ip-nav-wrapper {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
            transition: all 0.3s ease;
        }

        .o6ip-nav {
            height: 80px;
            align-items: center;
            justify-content: space-between;
        }

        .o6ip-logo img {
            height: 40px;
            width: auto;
            display: block;
        }

        .o6ip-menu {
            list-style: none;
            gap: 24px;
        }

        .o6ip-menu a {
            text-decoration: none;
            color: var(--o6ip-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.3s ease;
            padding: 8px 4px;
            position: relative;
        }

        .o6ip-menu a:hover, .o6ip-menu a.o6ip-active {
            color: var(--o6ip-primary);
        }

        .o6ip-menu a.o6ip-active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--o6ip-primary);
        }

        /* Hero Section */
        .o6ip-hero {
            padding: 120px 0 80px;
            background: linear-gradient(135deg, #fdfdfd 0%, #f4f7f6 100%);
            position: relative;
            overflow: hidden;
        }

        .o6ip-hero::before {
            content: '';
            position: absolute;
            top: -10%;
            right: -5%;
            width: 40%;
            height: 120%;
            background: rgba(191, 0, 0, 0.03);
            transform: skewX(-15deg);
            z-index: 0;
        }

        .o6ip-hero-content {
            position: relative;
            z-index: 1;
            flex: 1;
            padding-right: 64px;
        }

        .o6ip-hero-visual {
            flex: 1;
            display: flex;
            justify-content: center;
            align-items: center;
            position: relative;
        }

        .o6ip-hero-title {
            font-size: clamp(2.5rem, 5vw, 4rem);
            line-height: 1.1;
            font-weight: 800;
            color: var(--o6ip-secondary);
            margin-bottom: 32px;
            white-space: normal;
        }

        .o6ip-hero-subtitle {
            font-size: clamp(1.1rem, 2vw, 1.4rem);
            color: #666;
            margin-bottom: 48px;
            max-width: 600px;
        }

        .o6ip-badge {
            display: inline-block;
            padding: 6px 16px;
            background: var(--o6ip-primary);
            color: white;
            border-radius: 50px;
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 24px;
        }

        /* Comparison Grid */
        .o6ip-comparison-section {
            padding: 120px 0;
        }

        .o6ip-section-header {
            text-align: center;
            margin-bottom: 80px;
        }

        .o6ip-section-header h2 {
            font-size: 2.5rem;
            color: var(--o6ip-secondary);
            margin-bottom: 16px;
        }

        .o6ip-grid-asymmetric {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 32px;
        }

        .o6ip-card-pro {
            grid-column: span 7;
            background: var(--o6ip-white);
            padding: 64px;
            border-radius: var(--o6ip-radius);
            box-shadow: var(--o6ip-shadow);
            border-left: 6px solid var(--o6ip-primary);
            position: relative;
        }

        .o6ip-card-free {
            grid-column: span 5;
            background: var(--o6ip-light-grey);
            padding: 64px;
            border-radius: var(--o6ip-radius);
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .o6ip-feature-list {
            list-style: none;
            margin-top: 32px;
        }

        .o6ip-feature-list li {
            padding: 12px 0;
            border-bottom: 1px solid rgba(0,0,0,0.05);
            display: flex;
            align-items: center;
            font-weight: 500;
        }

        .o6ip-feature-list li::before {
            content: '✓';
            margin-right: 12px;
            color: var(--o6ip-primary);
            font-weight: bold;
        }

        /* Efficiency Features */
        .o6ip-efficiency-section {
            padding: 100px 0;
            background: var(--o6ip-secondary);
            color: var(--o6ip-white);
        }

        .o6ip-efficiency-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 48px;
        }

        .o6ip-efficiency-card {
            background: rgba(255,255,255,0.05);
            padding: 40px;
            border-radius: var(--o6ip-radius);
            transition: transform 0.3s ease;
            border: 1px solid rgba(255,255,255,0.1);
        }

        .o6ip-efficiency-card:hover {
            transform: translateY(-10px);
            background: rgba(255,255,255,0.08);
        }

        .o6ip-efficiency-card h3 {
            font-size: 1.5rem;
            margin-bottom: 20px;
            color: var(--o6ip-accent);
        }

        .o6ip-impact {
            margin-top: 24px;
            font-size: 0.9rem;
            color: #bdc3c7;
            font-style: italic;
            padding-top: 16px;
            border-top: 1px solid rgba(255,255,255,0.1);
        }

        /* Scenarios */
        .o6ip-scenarios {
            padding: 120px 0;
        }

        .o6ip-scenario-box {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 24px;
        }

        .o6ip-scenario-card {
            background: var(--o6ip-white);
            padding: 48px;
            border: 1px solid #eee;
            border-radius: var(--o6ip-radius);
            transition: all 0.3s ease;
        }

        .o6ip-scenario-card:hover {
            border-color: var(--o6ip-primary);
            box-shadow: var(--o6ip-shadow);
        }

        .o6ip-scenario-tag {
            font-size: 0.8rem;
            font-weight: bold;
            color: var(--o6ip-primary);
            margin-bottom: 16px;
            display: block;
        }

        /* Footer */
        .o6ip-footer {
            background: #1a1a1a;
            color: #999;
            padding: 80px 0 40px;
        }

        .o6ip-footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 64px;
            margin-bottom: 64px;
        }

        .o6ip-footer-brand h2 {
            color: white;
            margin-bottom: 24px;
        }

        .o6ip-footer-links h4 {
            color: white;
            margin-bottom: 24px;
        }

        .o6ip-footer-links ul {
            list-style: none;
        }

        .o6ip-footer-links li {
            margin-bottom: 12px;
        }

        .o6ip-footer-links a {
            color: #999;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .o6ip-footer-links a:hover {
            color: var(--o6ip-primary);
        }

        .o6ip-copyright {
            text-align: center;
            padding-top: 40px;
            border-top: 1px solid #333;
            font-size: 0.8rem;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .o6ip-card-pro, .o6ip-card-free {
                grid-column: span 12;
            }
        }

        @media (max-width: 768px) {
            .o6ip-nav {
                height: auto;
                padding: 20px 0;
            }
            .o6ip-menu {
                display: none; /* In a real site, implement a burger menu */
            }
            .o6ip-container {
                padding: 0 24px;
            }
            .o6ip-hero {
                padding: 80px 0 40px;
            }
            .o6ip-hero-content {
                padding-right: 0;
                margin-bottom: 48px;
            }
            .o6ip-hero-visual {
                display: none;
            }
            .o6ip-footer-grid {
                grid-template-columns: 1fr;
            }
        }