:root {
            --x393oe-primary: #0052cc;
            --x393oe-secondary: #0747a6;
            --x393oe-accent: #ffab00;
            --x393oe-text: #172b4d;
            --x393oe-text-light: #6b778c;
            --x393oe-bg: #ffffff;
            --x393oe-bg-alt: #f4f5f7;
            --x393oe-border: #dfe1e6;
            --x393oe-radius: 12px;
            --x393oe-shadow: 0 4px 12px rgba(9, 30, 66, 0.08);
            --x393oe-max-width: 1100px;
        }

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

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

        /* 导航栏样式 */
        .x393oe-navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 72px;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--x393oe-border);
            z-index: 1000;
            display: flex;
            align-items: center;
        }

        .x393oe-nav-container {
            max-width: var(--x393oe-max-width);
            margin: 0 auto;
            width: 100%;
            padding: 0 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }

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

        .x393oe-logo img {
            height: 32px;
            width: auto;
            display: block;
        }

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

        .x393oe-menu a {
            text-decoration: none;
            color: var(--x393oe-text);
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.3s;
        }

        .x393oe-menu a:hover {
            color: var(--x393oe-primary);
        }

        .x393oe-menu a.active {
            color: var(--x393oe-primary);
            border-bottom: 2px solid var(--x393oe-primary);
        }

        /* Hero 区块 */
        .x393oe-hero {
            padding: 160px 24px 80px;
            background: linear-gradient(135deg, #f0f4ff 0%, #ffffff 100%);
            text-align: center;
            position: relative;
        }

        .x393oe-hero::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: radial-gradient(var(--x393oe-primary) 0.5px, transparent 0.5px);
            background-size: 32px 32px;
            opacity: 0.1;
        }

        .x393oe-hero-content {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
            z-index: 1;
        }

        .x393oe-hero h1 {
            font-size: clamp(2rem, 5vw, 3.5rem);
            line-height: 1.2;
            margin-bottom: 24px;
            color: var(--x393oe-secondary);
        }

        .x393oe-hero p {
            font-size: clamp(1rem, 2vw + 0.5rem, 1.25rem);
            color: var(--x393oe-text-light);
            margin-bottom: 32px;
            word-break: break-word;
        }

        /* 历史版本列表区 */
        .x393oe-history-section {
            padding: 80px 24px;
            max-width: var(--x393oe-max-width);
            margin: 0 auto;
        }

        .x393oe-section-title {
            margin-bottom: 48px;
            text-align: left;
            border-left: 6px solid var(--x393oe-accent);
            padding-left: 24px;
        }

        .x393oe-version-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 24px;
        }

        .x393oe-version-card {
            background: var(--x393oe-bg);
            border: 1px solid var(--x393oe-border);
            border-radius: var(--x393oe-radius);
            padding: 32px;
            transition: transform 0.3s, box-shadow 0.3s;
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        .x393oe-version-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--x393oe-shadow);
            border-color: var(--x393oe-primary);
        }

        .x393oe-version-tag {
            display: inline-block;
            background: var(--x393oe-bg-alt);
            color: var(--x393oe-primary);
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 16px;
            width: fit-content;
        }

        .x393oe-version-card h3 {
            font-size: 1.5rem;
            margin-bottom: 12px;
        }

        .x393oe-version-card ul {
            list-style: none;
            margin-bottom: 24px;
            flex-grow: 1;
        }

        .x393oe-version-card li {
            font-size: 0.9rem;
            color: var(--x393oe-text-light);
            margin-bottom: 8px;
            position: relative;
            padding-left: 18px;
        }

        .x393oe-version-card li::before {
            content: "•";
            position: absolute;
            left: 0;
            color: var(--x393oe-accent);
        }

        .x393oe-btn {
            display: inline-block;
            padding: 12px 24px;
            background: var(--x393oe-primary);
            color: #fff;
            text-decoration: none;
            border-radius: 6px;
            font-weight: 600;
            text-align: center;
            transition: background 0.3s;
        }

        .x393oe-btn:hover {
            background: var(--x393oe-secondary);
        }

        /* 核心技术展示 */
        .x393oe-tech-section {
            background-color: var(--x393oe-bg-alt);
            padding: 96px 24px;
        }

        .x393oe-tech-container {
            max-width: var(--x393oe-max-width);
            margin: 0 auto;
        }

        .x393oe-tech-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            margin-top: 48px;
        }

        .x393oe-tech-item {
            flex: 1;
            min-width: 300px;
            background: #fff;
            padding: 40px;
            border-radius: var(--x393oe-radius);
            border-top: 4px solid var(--x393oe-primary);
        }

        .x393oe-tech-item h4 {
            font-size: 1.25rem;
            margin-bottom: 16px;
            color: var(--x393oe-secondary);
        }

        .x393oe-benefit {
            display: block;
            margin-top: 16px;
            padding: 8px 12px;
            background: #e3f2fd;
            border-radius: 4px;
            font-size: 0.85rem;
            color: var(--x393oe-primary);
            font-weight: 600;
        }

        /* 常见问题区块 */
        .x393oe-faq-section {
            padding: 96px 24px;
            max-width: 900px;
            margin: 0 auto;
        }

        .x393oe-faq-item {
            margin-bottom: 32px;
            border-bottom: 1px solid var(--x393oe-border);
            padding-bottom: 24px;
        }

        .x393oe-faq-item h5 {
            font-size: 1.2rem;
            margin-bottom: 12px;
            color: var(--x393oe-text);
        }

        /* 页脚样式 */
        .x393oe-footer {
            background: var(--x393oe-text);
            color: #fff;
            padding: 64px 24px;
            text-align: center;
        }

        .x393oe-footer-brand {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .x393oe-footer-links {
            display: flex;
            justify-content: center;
            gap: 24px;
            flex-wrap: wrap;
            margin-bottom: 32px;
        }

        .x393oe-footer-links a {
            color: #aeb9cc;
            text-decoration: none;
            font-size: 0.9rem;
        }

        .x393oe-footer-links a:hover {
            color: #fff;
        }

        .x393oe-copyright {
            color: #6b778c;
            font-size: 0.85rem;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .x393oe-navbar {
                height: auto;
                padding: 16px 0;
            }
            .x393oe-nav-container {
                flex-direction: column;
                gap: 16px;
            }
            .x393oe-menu {
                justify-content: center;
                gap: 12px;
            }
            .x393oe-hero {
                padding: 140px 24px 60px;
            }
            .x393oe-tech-item {
                min-width: 100%;
            }
        }