:root {
            --x393oe-primary: #0056b3;
            --x393oe-accent: #00a8ff;
            --x393oe-text: #2d3436;
            --x393oe-bg-light: #f4f7f6;
            --x393oe-white: #ffffff;
            --x393oe-gray: #636e72;
            --x393oe-container-width: 1300px;
        }

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

        body {
            font-family: "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            line-height: 1.6;
            color: var(--x393oe-text);
            background-color: var(--x393oe-white);
            word-break: break-word;
            overflow-x: hidden;
        }

        /* Navigation */
        .x393oe-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            z-index: 1000;
            box-shadow: 0 2px 20px rgba(0,0,0,0.05);
        }

        .x393oe-nav-container {
            max-width: var(--x393oe-container-width);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            height: 80px;
        }

        .x393oe-logo {
            flex: 0 0 auto;
            min-width: 0;
        }

        .x393oe-logo img {
            height: 40px;
            width: auto;
            display: block;
        }

        .x393oe-nav-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 24px;
        }

        .x393oe-nav-menu li {
            min-width: 0;
        }

        .x393oe-nav-link {
            text-decoration: none;
            color: var(--x393oe-text);
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.3s ease;
            position: relative;
            padding: 8px 0;
        }

        .x393oe-nav-link:hover {
            color: var(--x393oe-primary);
        }

        .x393oe-nav-link.x393oe-active {
            color: var(--x393oe-primary);
        }

        .x393oe-nav-link.x393oe-active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--x393oe-primary);
        }

        /* Hero Section */
        .x393oe-hero {
            padding-top: 80px;
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            overflow: hidden;
            background: #0a0a0a;
        }

        .x393oe-hero-bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.5;
            z-index: 1;
        }

        .x393oe-hero-content {
            position: relative;
            z-index: 2;
            max-width: var(--x393oe-container-width);
            margin: 0 auto;
            padding: 64px 24px;
            width: 100%;
            color: var(--x393oe-white);
        }

        .x393oe-hero-card {
            max-width: 700px;
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(15px);
            padding: 48px;
            border-radius: 24px;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .x393oe-hero-title {
            font-size: clamp(2.5rem, 5vw, 4rem);
            line-height: 1.1;
            margin-bottom: 24px;
            font-weight: 800;
            word-break: keep-all;
        }

        .x393oe-hero-subtitle {
            font-size: clamp(1.1rem, 2vw, 1.4rem);
            margin-bottom: 32px;
            opacity: 0.9;
            max-width: 550px;
        }

        .x393oe-btn {
            display: inline-block;
            padding: 16px 40px;
            background: linear-gradient(135deg, var(--x393oe-primary), var(--x393oe-accent));
            color: white;
            text-decoration: none;
            border-radius: 50px;
            font-weight: 600;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            box-shadow: 0 10px 20px rgba(0, 86, 179, 0.3);
        }

        .x393oe-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 30px rgba(0, 86, 179, 0.4);
        }

        /* Section Global */
        .x393oe-section {
            padding: 96px 24px;
            max-width: var(--x393oe-container-width);
            margin: 0 auto;
        }

        .x393oe-section-title {
            font-size: clamp(2rem, 4vw, 2.5rem);
            margin-bottom: 48px;
            text-align: center;
            position: relative;
        }

        .x393oe-section-title::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--x393oe-primary);
            margin: 16px auto 0;
        }

        /* Engine Deep Dive Grid */
        .x393oe-engine-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
            margin-top: 48px;
        }

        .x393oe-engine-card {
            background: var(--x393oe-bg-light);
            padding: 40px;
            border-radius: 20px;
            transition: transform 0.3s ease;
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        .x393oe-engine-card:hover {
            transform: translateY(-10px);
            background: var(--x393oe-white);
            box-shadow: 0 20px 40px rgba(0,0,0,0.05);
        }

        .x393oe-engine-card h3 {
            font-size: 1.5rem;
            margin-bottom: 16px;
            color: var(--x393oe-primary);
        }

        .x393oe-engine-card p {
            font-size: 1rem;
            color: var(--x393oe-gray);
            margin-bottom: 16px;
        }

        .x393oe-benefit-tag {
            margin-top: auto;
            display: inline-block;
            padding: 6px 16px;
            background: rgba(0, 86, 179, 0.1);
            color: var(--x393oe-primary);
            border-radius: 4px;
            font-size: 0.85rem;
            font-weight: 600;
        }

        /* Speed Visual Section */
        .x393oe-visual-block {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 64px;
            margin-top: 64px;
        }

        .x393oe-visual-image {
            flex: 1 1 450px;
            min-width: 0;
        }

        .x393oe-visual-image img {
            width: 100%;
            border-radius: 24px;
            box-shadow: 0 30px 60px rgba(0,0,0,0.15);
        }

        .x393oe-visual-text {
            flex: 1 1 450px;
            min-width: 0;
        }

        /* Mode Section */
        .x393oe-mode-section {
            background-color: #f0f4f8;
            padding: 96px 0;
        }

        .x393oe-mode-container {
            max-width: var(--x393oe-container-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .x393oe-mode-list {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            margin-top: 48px;
        }

        .x393oe-mode-item {
            flex: 1 1 300px;
            background: var(--x393oe-white);
            padding: 32px;
            border-radius: 16px;
            border-left: 5px solid var(--x393oe-primary);
            min-width: 0;
        }

        .x393oe-mode-item h4 {
            font-size: 1.25rem;
            margin-bottom: 12px;
            color: var(--x393oe-text);
        }

        /* Knowledge Base */
        .x393oe-faq-section {
            padding: 96px 24px;
        }

        .x393oe-faq-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
            gap: 48px;
            margin-top: 64px;
        }

        .x393oe-faq-item {
            min-width: 0;
        }

        .x393oe-faq-question {
            font-weight: 700;
            font-size: 1.2rem;
            margin-bottom: 16px;
            color: var(--x393oe-primary);
            display: flex;
            align-items: flex-start;
        }

        .x393oe-faq-answer {
            color: var(--x393oe-gray);
            line-height: 1.8;
            padding-left: 0;
        }

        /* UI Preview Full Width */
        .x393oe-ui-showcase {
            margin: 64px 0;
            text-align: center;
        }

        .x393oe-ui-showcase img {
            max-width: 1000px;
            width: 100%;
            border-radius: 12px;
            box-shadow: 0 10px 50px rgba(0,0,0,0.1);
        }

        /* Footer */
        .x393oe-footer {
            background: #1a1a1a;
            color: rgba(255, 255, 255, 0.7);
            padding: 80px 24px 40px;
        }

        .x393oe-footer-grid {
            max-width: var(--x393oe-container-width);
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            gap: 64px;
            justify-content: space-between;
        }

        .x393oe-footer-brand {
            flex: 1 1 300px;
            min-width: 0;
        }

        .x393oe-footer-brand h2 {
            color: var(--x393oe-white);
            margin-bottom: 24px;
            font-size: 1.5rem;
        }

        .x393oe-footer-links {
            flex: 1 1 200px;
            min-width: 0;
        }

        .x393oe-footer-links h4 {
            color: var(--x393oe-white);
            margin-bottom: 24px;
        }

        .x393oe-footer-links ul {
            list-style: none;
        }

        .x393oe-footer-links li {
            margin-bottom: 12px;
        }

        .x393oe-footer-links a {
            color: inherit;
            text-decoration: none;
            transition: color 0.3s;
        }

        .x393oe-footer-links a:hover {
            color: var(--x393oe-white);
        }

        .x393oe-copyright {
            text-align: center;
            margin-top: 64px;
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .x393oe-nav-container {
                height: auto;
                padding: 16px 24px;
            }
            .x393oe-nav-menu {
                width: 100%;
                margin-top: 16px;
                gap: 12px;
                justify-content: center;
            }
            .x393oe-hero-card {
                padding: 32px 24px;
            }
            .x393oe-faq-grid {
                grid-template-columns: 1fr;
            }
            .x393oe-engine-grid {
                grid-template-columns: 1fr;
            }
        }