:root {
            --x393oe-primary: #0078d4;
            --x393oe-primary-dark: #005a9e;
            --x393oe-accent: #2ecc71;
            --x393oe-bg-light: #f3f6f9;
            --x393oe-text-main: #1a1a1a;
            --x393oe-text-sub: #4a4a4a;
            --x393oe-white: #ffffff;
            --x393oe-glass: rgba(255, 255, 255, 0.8);
            --x393oe-shadow: 0 10px 30px rgba(0,0,0,0.08);
            --x393oe-container-width: 1400px;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            line-height: 1.7;
            color: var(--x393oe-text-main);
            background-color: var(--x393oe-bg-light);
            word-break: keep-all;
            overflow-x: hidden;
        }

        /* 导航栏 */
        .x393oe-header {
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            background: var(--x393oe-glass);
            backdrop-filter: blur(15px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
            padding: 16px 0;
        }

        .x393oe-nav-container {
            max-width: var(--x393oe-container-width);
            margin: 0 auto;
            padding: 0 48px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }

        .x393oe-logo {
            flex-shrink: 0;
        }

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

        .x393oe-nav-list {
            display: flex;
            list-style: none;
            gap: 24px;
            flex-wrap: wrap;
            min-width: 0;
        }

        .x393oe-nav-link {
            text-decoration: none;
            color: var(--x393oe-text-main);
            font-weight: 500;
            font-size: 15px;
            transition: color 0.3s;
            padding: 8px 0;
            position: relative;
        }

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

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

        /* Hero 区块 - 独特堆叠布局 */
        .x393oe-hero {
            padding: 160px 48px 96px;
            background: radial-gradient(circle at 90% 10%, rgba(0, 120, 212, 0.05) 0%, transparent 40%),
                        radial-gradient(circle at 10% 90%, rgba(46, 204, 113, 0.05) 0%, transparent 40%);
            text-align: center;
            overflow: hidden;
        }

        .x393oe-hero-content {
            max-width: 900px;
            margin: 0 auto;
        }

        .x393oe-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(0, 120, 212, 0.1);
            color: var(--x393oe-primary);
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .x393oe-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem);
            line-height: 1.1;
            font-weight: 800;
            margin-bottom: 32px;
            color: #000;
            letter-spacing: -0.02em;
        }

        .x393oe-hero-subtitle {
            font-size: clamp(1.1rem, 1.5vw + 0.5rem, 1.4rem);
            color: var(--x393oe-text-sub);
            margin-bottom: 48px;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        /* 核心技术架构 - Grid 布局 */
        .x393oe-section {
            padding: 96px 48px;
            max-width: var(--x393oe-container-width);
            margin: 0 auto;
        }

        .x393oe-grid-3 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
            margin-top: 48px;
        }

        .x393oe-tech-card {
            background: var(--x393oe-white);
            padding: 48px;
            border-radius: 24px;
            box-shadow: var(--x393oe-shadow);
            transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
            border: 1px solid rgba(0,0,0,0.03);
            min-width: 0;
            word-break: break-word;
        }

        .x393oe-tech-card:hover {
            transform: translateY(-10px);
        }

        .x393oe-tech-label {
            font-size: 13px;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--x393oe-primary);
            font-weight: 700;
            margin-bottom: 16px;
            display: block;
        }

        .x393oe-tech-title {
            font-size: 24px;
            margin-bottom: 20px;
            font-weight: 700;
        }

        .x393oe-tech-desc {
            color: var(--x393oe-text-sub);
            margin-bottom: 24px;
            font-size: 16px;
        }

        .x393oe-tech-benefit {
            padding-top: 20px;
            border-top: 1px dashed #eee;
            font-weight: 600;
            color: var(--x393oe-accent);
            display: flex;
            align-items: center;
        }

        /* Windows 11 专供特性 - 左右交替布局 */
        .x393oe-feature-row {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 64px;
            margin-bottom: 96px;
        }

        .x393oe-feature-text {
            flex: 1;
            min-width: 320px;
        }

        .x393oe-feature-visual {
            flex: 1;
            min-width: 320px;
            background: linear-gradient(135deg, #e0eafc 0%, #cfdef3 100%);
            border-radius: 32px;
            height: 400px;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }

        .x393oe-feature-visual::before {
            content: 'Win 11 Optimized';
            font-size: 80px;
            font-weight: 900;
            color: rgba(255,255,255,0.3);
            white-space: nowrap;
            transform: rotate(-15deg);
        }

        .x393oe-mode-tag {
            display: inline-block;
            padding: 4px 12px;
            border: 1px solid var(--x393oe-primary);
            border-radius: 4px;
            font-size: 12px;
            margin-right: 8px;
            margin-bottom: 8px;
            color: var(--x393oe-primary);
        }

        /* 知识库 FAQ - 列表样式 */
        .x393oe-faq-container {
            max-width: 900px;
            margin: 0 auto;
        }

        .x393oe-faq-item {
            background: var(--x393oe-white);
            margin-bottom: 16px;
            border-radius: 16px;
            padding: 32px;
            border-left: 4px solid var(--x393oe-primary);
        }

        .x393oe-faq-q {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
            color: #000;
        }

        /* 页脚 */
        .x393oe-footer {
            background: #111;
            color: #fff;
            padding: 80px 48px;
            margin-top: 96px;
        }

        .x393oe-footer-content {
            max-width: var(--x393oe-container-width);
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 48px;
        }

        .x393oe-footer-brand h3 {
            font-size: 24px;
            margin-bottom: 16px;
            color: var(--x393oe-white);
        }

        .x393oe-footer-brand p {
            color: #888;
            max-width: 300px;
        }

        .x393oe-footer-links {
            display: flex;
            gap: 64px;
            flex-wrap: wrap;
        }

        .x393oe-footer-col h4 {
            margin-bottom: 24px;
            font-size: 16px;
            color: var(--x393oe-primary);
        }

        .x393oe-footer-col a {
            display: block;
            color: #ccc;
            text-decoration: none;
            margin-bottom: 12px;
            font-size: 14px;
            transition: color 0.3s;
        }

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

        .x393oe-copyright {
            max-width: var(--x393oe-container-width);
            margin: 48px auto 0;
            padding-top: 32px;
            border-top: 1px solid #333;
            text-align: center;
            color: #555;
            font-size: 14px;
        }

        /* 响应式适配 */
        @media (max-width: 768px) {
            .x393oe-nav-container {
                padding: 0 24px;
                justify-content: center;
                gap: 16px;
            }
            .x393oe-nav-list {
                justify-content: center;
                gap: 12px;
            }
            .x393oe-hero {
                padding: 120px 24px 64px;
            }
            .x393oe-section {
                padding: 64px 24px;
            }
            .x393oe-feature-row {
                flex-direction: column;
                text-align: center;
            }
            .x393oe-feature-visual {
                width: 100%;
                height: 250px;
            }
            .x393oe-footer-links {
                gap: 32px;
            }
        }

        /* 动画增强 */
        .x393oe-btn {
            display: inline-block;
            padding: 16px 40px;
            background: var(--x393oe-primary);
            color: #fff;
            text-decoration: none;
            border-radius: 12px;
            font-weight: 600;
            transition: all 0.3s;
            border: none;
            cursor: pointer;
            box-shadow: 0 4px 15px rgba(0,120,212,0.3);
        }

        .x393oe-btn:hover {
            background: var(--x393oe-primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0,120,212,0.4);
        }