:root {
            --h0u505-primary: #1a73e8;
            --h0u505-success: #34a853;
            --h0u505-warning: #fbbc04;
            --h0u505-danger: #ea4335;
            --h0u505-text: #202124;
            --h0u505-text-light: #5f6368;
            --h0u505-bg: #ffffff;
            --h0u505-bg-alt: #f8f9fa;
            --h0u505-surface: rgba(255, 255, 255, 0.9);
            --h0u505-border: #dadce0;
            --h0u505-radius: 12px;
            --h0u505-container-width: 1100px;
        }

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

        body {
            font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            color: var(--h0u505-text);
            background-color: var(--h0u505-bg);
            line-height: 1.7;
            overflow-x: hidden;
            word-break: keep-all;
        }

        .h0u505-container {
            max-width: var(--h0u505-container-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 导航栏 */
        .h0u505-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--h0u505-surface);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--h0u505-border);
            transition: box-shadow 0.3s ease;
        }

        .h0u505-header.scrolled {
            box-shadow: 0 4px 12px rgba(0,0,0,0.08);
        }

        .h0u505-nav-wrapper {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            height: auto;
            min-height: 72px;
            padding: 8px 0;
        }

        .h0u505-logo {
            flex: 0 0 auto;
            min-width: 0;
            display: flex;
            align-items: center;
        }

        .h0u505-logo img {
            height: 32px;
            width: auto;
        }

        .h0u505-nav-list {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 16px;
            min-width: 0;
        }

        .h0u505-nav-item a {
            text-decoration: none;
            color: var(--h0u505-text-light);
            font-size: 14px;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 6px;
            transition: all 0.2s ease;
            word-break: break-word;
        }

        .h0u505-nav-item a:hover {
            color: var(--h0u505-primary);
            background: rgba(26, 115, 232, 0.05);
        }

        .h0u505-nav-item.active a {
            color: var(--h0u505-primary);
            background: rgba(26, 115, 232, 0.1);
        }

        /* Hero 区 - 独特布局 */
        .h0u505-hero {
            padding: 96px 0 64px;
            background: radial-gradient(circle at top right, rgba(66, 133, 244, 0.05), transparent),
                        radial-gradient(circle at bottom left, rgba(52, 168, 83, 0.05), transparent);
            position: relative;
            overflow: hidden;
        }

        .h0u505-hero-content {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 48px;
        }

        .h0u505-hero-text {
            flex: 1 1 500px;
            min-width: 0;
        }

        .h0u505-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4rem);
            line-height: 1.1;
            font-weight: 800;
            margin-bottom: 24px;
            color: var(--h0u505-text);
            word-break: break-word;
        }

        .h0u505-hero-subtitle {
            font-size: clamp(1.1rem, 2vw + 0.5rem, 1.4rem);
            color: var(--h0u505-text-light);
            margin-bottom: 32px;
            max-width: 600px;
            word-break: break-word;
        }

        .h0u505-hero-visual {
            flex: 1 1 400px;
            min-width: 0;
            perspective: 1000px;
        }

        /* 模拟 F12 控制台视觉 */
        .h0u505-console-mockup {
            background: #202124;
            border-radius: 12px;
            padding: 20px;
            box-shadow: 0 20px 50px rgba(0,0,0,0.15);
            font-family: 'Courier New', Courier, monospace;
            color: #bdc1c6;
            transform: rotateY(-10deg) rotateX(5deg);
            transition: transform 0.5s ease;
            border: 1px solid #3c4043;
        }

        .h0u505-console-mockup:hover {
            transform: rotateY(0) rotateX(0);
        }

        .h0u505-code-line {
            margin-bottom: 8px;
            word-break: break-all;
        }

        .h0u505-code-prompt { color: #8ab4f8; margin-right: 8px; }
        .h0u505-code-keyword { color: #f28b82; }
        .h0u505-code-string { color: #81c995; }

        /* 特色板块 - 调试技巧 */
        .h0u505-section {
            padding: 96px 0;
        }

        .h0u505-section-head {
            text-align: center;
            margin-bottom: 64px;
        }

        .h0u505-section-label {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(26, 115, 232, 0.1);
            color: var(--h0u505-primary);
            border-radius: 20px;
            font-weight: 600;
            font-size: 14px;
            margin-bottom: 16px;
        }

        .h0u505-section-title {
            font-size: clamp(2rem, 3vw + 0.5rem, 2.8rem);
            font-weight: 700;
        }

        .h0u505-tricks-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
        }

        .h0u505-trick-card {
            background: var(--h0u505-bg);
            border: 1px solid var(--h0u505-border);
            border-radius: var(--h0u505-radius);
            padding: 32px;
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .h0u505-trick-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 30px rgba(0,0,0,0.05);
            border-color: var(--h0u505-primary);
        }

        .h0u505-trick-icon {
            width: 48px;
            height: 48px;
            background: var(--h0u505-bg-alt);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--h0u505-primary);
        }

        /* 安全矩阵板块 */
        .h0u505-matrix-section {
            background: var(--h0u505-bg-alt);
            padding: 96px 0;
            border-radius: 48px 48px 0 0;
        }

        .h0u505-matrix-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
        }

        .h0u505-matrix-item {
            flex: 1 1 300px;
            min-width: 0;
            background: var(--h0u505-bg);
            padding: 32px;
            border-radius: 24px;
            border-left: 4px solid var(--h0u505-primary);
        }

        .h0u505-matrix-item:nth-child(2) { border-left-color: var(--h0u505-success); }
        .h0u505-matrix-item:nth-child(3) { border-left-color: var(--h0u505-warning); }

        .h0u505-matrix-name {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .h0u505-matrix-logic {
            color: var(--h0u505-text-light);
            font-size: 15px;
            margin-bottom: 16px;
        }

        .h0u505-matrix-meta {
            font-size: 13px;
            color: var(--h0u505-primary);
            font-weight: 600;
            text-transform: uppercase;
        }

        /* 未来愿景时间轴 */
        .h0u505-vision-section {
            padding: 96px 0;
        }

        .h0u505-timeline {
            position: relative;
            max-width: 800px;
            margin: 48px auto 0;
            padding-left: 40px;
        }

        .h0u505-timeline::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--h0u505-border);
        }

        .h0u505-milestone {
            position: relative;
            margin-bottom: 48px;
        }

        .h0u505-milestone::after {
            content: '';
            position: absolute;
            left: -46px;
            top: 10px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--h0u505-primary);
            border: 3px solid var(--h0u505-bg);
            box-shadow: 0 0 0 4px rgba(26, 115, 232, 0.1);
        }

        .h0u505-milestone-year {
            font-size: 24px;
            font-weight: 800;
            color: var(--h0u505-primary);
            margin-bottom: 8px;
        }

        .h0u505-milestone-focus {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 4px;
        }

        .h0u505-milestone-status {
            font-size: 14px;
            color: var(--h0u505-text-light);
            background: #eee;
            padding: 2px 8px;
            border-radius: 4px;
            display: inline-block;
        }

        /* 按钮样式 */
        .h0u505-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 32px;
            border-radius: 30px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s ease;
            cursor: pointer;
            border: none;
        }

        .h0u505-btn-primary {
            background: var(--h0u505-primary);
            color: white;
            box-shadow: 0 4px 14px rgba(26, 115, 232, 0.3);
        }

        .h0u505-btn-primary:hover {
            background: #1765cc;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(26, 115, 232, 0.4);
        }

        /* 页脚 */
        .h0u505-footer {
            background: #f1f3f4;
            padding: 64px 0 32px;
            border-top: 1px solid var(--h0u505-border);
        }

        .h0u505-footer-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            margin-bottom: 48px;
        }

        .h0u505-footer-brand {
            flex: 2 1 300px;
            min-width: 0;
        }

        .h0u505-footer-brand-name {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .h0u505-footer-links {
            flex: 1 1 200px;
            min-width: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .h0u505-footer-link {
            text-decoration: none;
            color: var(--h0u505-text-light);
            font-size: 14px;
        }

        .h0u505-footer-link:hover {
            color: var(--h0u505-primary);
        }

        .h0u505-footer-bottom {
            padding-top: 32px;
            border-top: 1px solid var(--h0u505-border);
            text-align: center;
            font-size: 13px;
            color: var(--h0u505-text-light);
        }

        /* 响应式断点 */
        @media (max-width: 768px) {
            .h0u505-nav-list {
                display: none; /* 简化演示：移动端隐藏菜单，实际可加汉堡菜单 */
            }
            .h0u505-hero {
                padding: 64px 0;
                text-align: center;
            }
            .h0u505-hero-content {
                flex-direction: column;
            }
            .h0u505-hero-text {
                flex: 1 1 auto;
            }
            .h0u505-hero-visual {
                display: none;
            }
            .h0u505-matrix-item {
                flex: 1 1 100%;
            }
        }