/* 变量与基础重置 */
        :root {
            --x393oe-primary: #005bb7;
            --x393oe-secondary: #00c6ff;
            --x393oe-dark: #1a1c20;
            --x393oe-light: #f4f7fa;
            --x393oe-text: #2c3e50;
            --x393oe-text-muted: #6c757d;
            --x393oe-white: #ffffff;
            --x393oe-gap: 8px;
            --x393oe-container-width: 1100px;
            --x393oe-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", -apple-system, sans-serif;
            line-height: 1.7;
            color: var(--x393oe-text);
            background-color: var(--x393oe-white);
            overflow-x: hidden;
            word-break: break-word;
        }

        /* 导航系统 */
        .x393oe-navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 80px;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(15px);
            z-index: 1000;
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            display: flex;
            align-items: center;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
        }

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

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

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

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

        .x393oe-nav-link {
            text-decoration: none;
            color: var(--x393oe-text);
            font-size: 0.95rem;
            font-weight: 500;
            transition: var(--x393oe-transition);
            padding: 8px 4px;
            position: relative;
        }

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

        .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);
            border-radius: 2px;
        }

        /* Hero 视觉区 */
        .x393oe-hero {
            padding-top: 160px;
            padding-bottom: 96px;
            background: radial-gradient(circle at top right, #f0f7ff 0%, #ffffff 70%);
            position: relative;
            overflow: hidden;
        }

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

        .x393oe-hero-badge {
            display: inline-block;
            background: rgba(0, 91, 183, 0.08);
            color: var(--x393oe-primary);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 24px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .x393oe-hero-title {
            font-size: clamp(2rem, 5vw, 3.5rem);
            line-height: 1.2;
            font-weight: 800;
            color: var(--x393oe-dark);
            margin-bottom: 24px;
            word-break: keep-all;
        }

        .x393oe-hero-subtitle {
            font-size: clamp(1rem, 2vw + 0.5rem, 1.25rem);
            color: var(--x393oe-text-muted);
            max-width: 800px;
            margin: 0 auto;
        }

        /* 技术支柱布局 (Grid) */
        .x393oe-tech-section {
            padding: 96px 0;
            background: var(--x393oe-white);
        }

        .x393oe-section-header {
            max-width: var(--x393oe-container-width);
            margin: 0 auto 64px auto;
            padding: 0 24px;
            border-left: 4px solid var(--x393oe-primary);
        }

        .x393oe-section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .x393oe-grid-pillars {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
            max-width: var(--x393oe-container-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .x393oe-pillar-card {
            background: var(--x393oe-light);
            padding: 48px 32px;
            border-radius: 16px;
            transition: var(--x393oe-transition);
            border: 1px solid rgba(0, 0, 0, 0.03);
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        .x393oe-pillar-card:hover {
            transform: translateY(-10px);
            background: var(--x393oe-white);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
            border-color: var(--x393oe-primary);
        }

        .x393oe-pillar-num {
            font-size: 3rem;
            font-weight: 900;
            color: rgba(0, 91, 183, 0.1);
            line-height: 1;
            margin-bottom: 16px;
        }

        .x393oe-pillar-title {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--x393oe-dark);
        }

        .x393oe-pillar-desc {
            font-size: 1rem;
            color: var(--x393oe-text-muted);
            margin-bottom: 24px;
            flex-grow: 1;
        }

        .x393oe-pillar-benefit {
            padding: 12px 16px;
            background: var(--x393oe-white);
            border-radius: 8px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--x393oe-primary);
            border-left: 3px solid var(--x393oe-primary);
        }

        /* 模式展示 (Flex-Alternate) */
        .x393oe-modes-section {
            padding: 96px 0;
            background: var(--x393oe-dark);
            color: var(--x393oe-white);
        }

        .x393oe-mode-row {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            max-width: var(--x393oe-container-width);
            margin: 0 auto 80px auto;
            padding: 0 24px;
            gap: 48px;
        }

        .x393oe-mode-row:nth-child(even) {
            flex-direction: row-reverse;
        }

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

        .x393oe-mode-visual {
            flex: 1;
            min-width: 300px;
            background: linear-gradient(135deg, #2c3e50 0%, #000000 100%);
            height: 240px;
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .x393oe-mode-visual::after {
            content: 'CODE LOGIC';
            font-family: monospace;
            color: var(--x393oe-secondary);
            opacity: 0.4;
            font-size: 0.8rem;
        }

        .x393oe-mode-label {
            color: var(--x393oe-secondary);
            font-weight: 700;
            font-size: 0.9rem;
            margin-bottom: 12px;
            display: block;
        }

        .x393oe-mode-name {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 20px;
        }

        .x393oe-mode-logic {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.8;
        }

        /* 知识库 (Accordion/Grid) */
        .x393oe-qa-section {
            padding: 96px 0;
            background: var(--x393oe-light);
        }

        .x393oe-qa-grid {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .x393oe-qa-item {
            background: var(--x393oe-white);
            padding: 32px;
            border-radius: 12px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
            min-width: 0;
        }

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

        .x393oe-qa-q::before {
            content: 'Q:';
            margin-right: 12px;
            opacity: 0.5;
        }

        .x393oe-qa-a {
            color: var(--x393oe-text);
            padding-left: 36px;
            border-left: 2px solid var(--x393oe-light);
        }

        /* 页脚 */
        .x393oe-footer {
            padding: 64px 0;
            background: var(--x393oe-white);
            border-top: 1px solid rgba(0, 0, 0, 0.05);
            text-align: center;
        }

        .x393oe-footer-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--x393oe-dark);
            margin-bottom: 16px;
        }

        .x393oe-footer-copyright {
            font-size: 0.9rem;
            color: var(--x393oe-text-muted);
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .x393oe-nav-menu {
                display: none; /* 简化演示，移动端通常使用汉堡菜单 */
            }
            .x393oe-hero {
                padding-top: 120px;
                padding-bottom: 64px;
            }
            .x393oe-grid-pillars {
                grid-template-columns: 1fr;
            }
            .x393oe-mode-row {
                flex-direction: column !important;
                text-align: center;
            }
            .x393oe-mode-visual {
                width: 100%;
            }
        }