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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f8f9fa;
        }

        .l8uo-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .l8uo-header {
            background: #fff;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .l8uo-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 15px 0;
        }

        .l8uo-logo {
            height: 40px;
        }

        .l8uo-nav-menu {
            display: flex;
            gap: 30px;
            list-style: none;
        }

        .l8uo-nav-link {
            text-decoration: none;
            color: #333;
            font-weight: 500;
            transition: color 0.3s ease;
        }

        .l8uo-nav-link:hover {
            color: #007acc;
        }

        .l8uo-hero {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 80px 0;
            text-align: center;
        }

        .l8uo-hero-title {
            font-size: 3rem;
            font-weight: 700;
            margin-bottom: 20px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }

        .l8uo-hero-subtitle {
            font-size: 1.3rem;
            margin-bottom: 30px;
            opacity: 0.9;
        }

        .l8uo-hero-cta {
            background: #ff6b6b;
            color: white;
            padding: 15px 40px;
            border: none;
            border-radius: 50px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
        }

        .l8uo-hero-cta:hover {
            background: #ff5252;
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(255,107,107,0.3);
        }

        .l8uo-main {
            padding: 60px 0;
        }

        .l8uo-content-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 40px;
            margin-bottom: 60px;
        }

        .l8uo-content-main {
            background: white;
            padding: 40px;
            border-radius: 15px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.1);
        }

        .l8uo-content-sidebar {
            background: white;
            padding: 30px;
            border-radius: 15px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.1);
            height: fit-content;
        }

        .l8uo-section-title {
            font-size: 2rem;
            color: #2c3e50;
            margin-bottom: 30px;
            border-bottom: 3px solid #007acc;
            padding-bottom: 10px;
        }

        .l8uo-tutorial-step {
            margin-bottom: 40px;
            padding: 25px;
            background: #f8f9fa;
            border-radius: 10px;
            border-left: 5px solid #007acc;
        }

        .l8uo-step-number {
            background: #007acc;
            color: white;
            width: 35px;
            height: 35px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            margin-bottom: 15px;
        }

        .l8uo-step-title {
            font-size: 1.4rem;
            color: #2c3e50;
            margin-bottom: 15px;
            font-weight: 600;
        }

        .l8uo-step-content {
            color: #555;
            line-height: 1.8;
        }

        .l8uo-feature-list {
            list-style: none;
            margin: 20px 0;
        }

        .l8uo-feature-item {
            padding: 10px 0;
            border-bottom: 1px solid #eee;
            position: relative;
            padding-left: 25px;
        }

        .l8uo-feature-item:before {
            content: "✓";
            color: #28a745;
            font-weight: bold;
            position: absolute;
            left: 0;
        }

        .l8uo-sidebar-title {
            font-size: 1.3rem;
            color: #2c3e50;
            margin-bottom: 20px;
            font-weight: 600;
        }

        .l8uo-quick-links {
            list-style: none;
        }

        .l8uo-quick-link {
            margin-bottom: 10px;
        }

        .l8uo-quick-link a {
            color: #007acc;
            text-decoration: none;
            padding: 8px 12px;
            display: block;
            border-radius: 5px;
            transition: background 0.3s ease;
        }

        .l8uo-quick-link a:hover {
            background: #f0f8ff;
        }

        .l8uo-cta-section {
            background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
            padding: 60px 0;
            text-align: center;
            color: white;
        }

        .l8uo-cta-title {
            font-size: 2.5rem;
            margin-bottom: 20px;
            font-weight: 700;
        }

        .l8uo-cta-text {
            font-size: 1.2rem;
            margin-bottom: 30px;
            opacity: 0.9;
        }

        .l8uo-cta-button {
            background: #ff6b6b;
            color: white;
            padding: 18px 50px;
            border: none;
            border-radius: 50px;
            font-size: 1.2rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
            margin: 0 10px;
        }

        .l8uo-cta-button:hover {
            background: #ff5252;
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(255,107,107,0.4);
        }

        .l8uo-cta-button-secondary {
            background: transparent;
            border: 2px solid white;
        }

        .l8uo-cta-button-secondary:hover {
            background: white;
            color: #4facfe;
        }

        .l8uo-footer {
            background: #2c3e50;
            color: white;
            padding: 40px 0;
            text-align: center;
        }

        .l8uo-footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }

        .l8uo-footer-section h3 {
            margin-bottom: 15px;
            color: #ecf0f1;
        }

        .l8uo-footer-section p,
        .l8uo-footer-section a {
            color: #bdc3c7;
            text-decoration: none;
            line-height: 1.8;
        }

        .l8uo-footer-section a:hover {
            color: #3498db;
        }

        .l8uo-footer-bottom {
            border-top: 1px solid #34495e;
            padding-top: 20px;
            color: #95a5a6;
        }

        .l8uo-highlight-box {
            background: #e8f4fd;
            border: 1px solid #bee5eb;
            border-radius: 8px;
            padding: 20px;
            margin: 20px 0;
        }

        .l8uo-highlight-title {
            color: #0c5460;
            font-weight: 600;
            margin-bottom: 10px;
        }

        @media (max-width: 768px) {
            .l8uo-nav-menu {
                display: none;
            }

            .l8uo-hero-title {
                font-size: 2rem;
            }

            .l8uo-content-grid {
                grid-template-columns: 1fr;
            }

            .l8uo-content-main,
            .l8uo-content-sidebar {
                padding: 20px;
            }

            .l8uo-cta-title {
                font-size: 1.8rem;
            }

            .l8uo-cta-button {
                display: block;
                margin: 10px auto;
                width: 80%;
            }
        }