:root {
            --x393oe-primary: #0056b3;
            --x393oe-secondary: #00d2ff;
            --x393oe-dark: #1a1a1a;
            --x393oe-light: #f8f9fa;
            --x393oe-accent: #ff4757;
            --x393oe-text: #2f3542;
            --x393oe-border: #dfe4ea;
            --x393oe-spacing-unit: 8px;
            --x393oe-container-width: 1100px;
        }

        * {
            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: 1.6;
            color: var(--x393oe-text);
            background-color: #ffffff;
            word-break: keep-all;
            overflow-x: hidden;
        }

        /* 导航栏 */
        .x393oe-navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--x393oe-border);
            z-index: 1000;
            padding: 16px 0;
            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;
        }

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

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

        .x393oe-nav-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 20px;
            min-width: 0;
        }

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

        .x393oe-nav-menu a {
            text-decoration: none;
            color: var(--x393oe-text);
            font-weight: 500;
            font-size: 15px;
            transition: color 0.3s;
            padding: 8px 4px;
            border-bottom: 2px solid transparent;
        }

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

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

        /* Hero 区块 - 独特对角线分割布局 */
        .x393oe-hero {
            position: relative;
            padding: 160px 0 100px;
            background: linear-gradient(135deg, #1a2a6c, #b21f1f, #fdbb2d);
            background-size: 400% 400%;
            animation: gradientBG 15s ease infinite;
            color: white;
            clip-path: polygon(0 0, 100% 0, 100% 85%, 0 100%);
            overflow: hidden;
        }

        @keyframes gradientBG {
            0% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
            100% { background-position: 0% 50%; }
        }

        .x393oe-hero-content {
            max-width: var(--x393oe-container-width);
            margin: 0 auto;
            padding: 0 24px;
            text-align: center;
        }

        .x393oe-hero h1 {
            font-size: clamp(2.5rem, 5vw + 1rem, 4rem);
            font-weight: 800;
            line-height: 1.1;
            margin-bottom: 24px;
            word-break: break-word;
        }

        .x393oe-hero p {
            font-size: clamp(1.1rem, 1.5vw + 0.5rem, 1.4rem);
            max-width: 800px;
            margin: 0 auto 40px;
            opacity: 0.9;
        }

        /* 核心校验功能展示 - 卡片式布局 */
        .x393oe-section {
            padding: 96px 0;
            max-width: var(--x393oe-container-width);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .x393oe-section-title {
            text-align: center;
            margin-bottom: 64px;
        }

        .x393oe-section-title h2 {
            font-size: clamp(1.8rem, 3vw + 0.5rem, 2.5rem);
            color: var(--x393oe-dark);
            margin-bottom: 16px;
        }

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

        .x393oe-card {
            background: #fff;
            padding: 40px;
            border-radius: 16px;
            border: 1px solid var(--x393oe-border);
            transition: transform 0.3s, box-shadow 0.3s;
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        .x393oe-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.08);
        }

        .x393oe-card-tag {
            display: inline-block;
            background: var(--x393oe-light);
            color: var(--x393oe-primary);
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 700;
            margin-bottom: 20px;
            text-transform: uppercase;
        }

        .x393oe-card h3 {
            font-size: 22px;
            margin-bottom: 16px;
            color: var(--x393oe-dark);
        }

        .x393oe-card p {
            color: #666;
            margin-bottom: 24px;
            flex-grow: 1;
        }

        /* 校验技术深度解析 - 左右交替布局 */
        .x393oe-feature-split {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            margin-bottom: 80px;
            gap: 48px;
        }

        .x393oe-feature-content {
            flex: 1;
            min-width: 300px;
        }

        .x393oe-feature-image {
            flex: 1;
            min-width: 300px;
            background: var(--x393oe-light);
            border-radius: 24px;
            padding: 40px;
            text-align: center;
            position: relative;
        }

        .x393oe-visual-box {
            width: 100%;
            height: 300px;
            background: linear-gradient(45deg, #eee, #fff);
            border: 2px dashed var(--x393oe-primary);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            color: var(--x393oe-primary);
            font-size: 24px;
        }

        /* 问答区块 */
        .x393oe-faq-section {
            background-color: var(--x393oe-light);
            padding: 96px 24px;
        }

        .x393oe-faq-container {
            max-width: 900px;
            margin: 0 auto;
        }

        .x393oe-faq-item {
            background: white;
            padding: 32px;
            border-radius: 12px;
            margin-bottom: 24px;
            box-shadow: 0 4px 6px rgba(0,0,0,0.02);
        }

        .x393oe-faq-item h4 {
            font-size: 18px;
            color: var(--x393oe-primary);
            margin-bottom: 12px;
            display: flex;
            align-items: flex-start;
        }

        /* 页脚 */
        .x393oe-footer {
            background: var(--x393oe-dark);
            color: #fff;
            padding: 80px 24px 40px;
        }

        .x393oe-footer-content {
            max-width: var(--x393oe-container-width);
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 48px;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            padding-bottom: 48px;
        }

        .x393oe-footer-brand h2 {
            font-size: 24px;
            margin-bottom: 16px;
        }

        .x393oe-footer-links h5 {
            font-size: 16px;
            margin-bottom: 24px;
            color: var(--x393oe-secondary);
        }

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

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

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

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

        .x393oe-footer-bottom {
            text-align: center;
            padding-top: 40px;
            color: #666;
            font-size: 14px;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .x393oe-nav-menu {
                display: none; /* 简化起见，移动端隐藏或可改为汉堡菜单 */
            }
            .x393oe-hero {
                clip-path: none;
                padding-top: 120px;
            }
            .x393oe-feature-split {
                flex-direction: column;
            }
        }