:root {
            --rh3o-primary: #1880C4;
            --rh3o-primary-dark: #005691;
            --rh3o-accent: #00d2ff;
            --rh3o-bg-dark: #0a192f;
            --rh3o-bg-light: #f4f7f9;
            --rh3o-text-main: #2c3e50;
            --rh3o-text-muted: #5d6d7e;
            --rh3o-white: #ffffff;
            --rh3o-radius: 16px;
            --rh3o-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--rh3o-text-main);
            line-height: 1.7;
            background-color: var(--rh3o-bg-light);
            overflow-x: hidden;
        }

        /* 布局容器 - 独特非对称布局 */
        .rh3o-page-wrapper {
            display: flex;
            flex-wrap: wrap;
            min-width: 0;
            min-height: 100vh;
        }

        /* 侧边导航栏 - 独特设计 */
        .rh3o-sidebar {
            flex: 0 0 280px;
            min-width: 0;
            background: var(--rh3o-bg-dark);
            color: var(--rh3o-white);
            padding: 48px 24px;
            position: sticky;
            top: 0;
            height: 100vh;
            display: flex;
            flex-direction: column;
            z-index: 1000;
        }

        .rh3o-logo {
            margin-bottom: 64px;
            width: 100%;
            text-align: center;
        }

        .rh3o-logo img {
            max-width: 180px;
            height: auto;
            filter: drop-shadow(0 0 10px rgba(0, 210, 255, 0.3));
        }

        .rh3o-nav {
            display: flex;
            flex-direction: column;
            gap: 8px;
            flex-grow: 1;
        }

        .rh3o-nav-item {
            text-decoration: none;
            color: rgba(255, 255, 255, 0.7);
            padding: 12px 20px;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 500;
            transition: var(--rh3o-transition);
            word-break: break-word;
        }

        .rh3o-nav-item:hover {
            color: var(--rh3o-white);
            background: rgba(255, 255, 255, 0.05);
            transform: translateX(5px);
        }

        .rh3o-nav-item.rh3o-active {
            color: var(--rh3o-white);
            background: var(--rh3o-primary);
            box-shadow: 0 4px 15px rgba(24, 128, 196, 0.4);
        }

        /* 主内容区 */
        .rh3o-main-content {
            flex: 1;
            min-width: 0;
            max-width: 1400px;
            margin: 0 auto;
            background: var(--rh3o-white);
            position: relative;
        }

        /* Hero 区域 - 对角线视觉 */
        .rh3o-hero {
            position: relative;
            padding: 96px 64px;
            background: linear-gradient(135deg, #f8fbff 0%, #e1ecf7 100%);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            min-width: 0;
            gap: 48px;
            overflow: hidden;
        }

        .rh3o-hero-text {
            flex: 1;
            min-width: 320px;
            z-index: 2;
        }

        .rh3o-hero-title {
            font-size: clamp(2rem, 4vw + 1rem, 3.5rem);
            line-height: 1.2;
            color: var(--rh3o-bg-dark);
            margin-bottom: 24px;
            font-weight: 800;
            word-break: keep-all;
        }

        .rh3o-hero-subtitle {
            font-size: clamp(1.1rem, 1.5vw + 0.5rem, 1.35rem);
            color: var(--rh3o-text-muted);
            margin-bottom: 32px;
            max-width: 600px;
        }

        .rh3o-hero-visual {
            flex: 1.2;
            min-width: 320px;
            position: relative;
        }

        .rh3o-hero-image {
            width: 100%;
            border-radius: var(--rh3o-radius);
            box-shadow: 0 30px 60px rgba(0,0,0,0.12);
            transform: perspective(1000px) rotateY(-5deg) rotateX(2deg);
            transition: var(--rh3o-transition);
        }

        .rh3o-hero-image:hover {
            transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
        }

        /* 按钮设计 */
        .rh3o-btn-primary {
            display: inline-block;
            padding: 16px 36px;
            background: linear-gradient(to right, var(--rh3o-primary), var(--rh3o-primary-dark));
            color: white;
            text-decoration: none;
            border-radius: 50px;
            font-weight: 600;
            box-shadow: 0 10px 20px rgba(24, 128, 196, 0.3);
            transition: var(--rh3o-transition);
        }

        .rh3o-btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 30px rgba(24, 128, 196, 0.4);
        }

        /* 核心特性区 - 交替排版 */
        .rh3o-section {
            padding: 96px 64px;
            min-width: 0;
        }

        .rh3o-feature-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 64px;
            align-items: center;
        }

        .rh3o-feature-content {
            flex: 1;
            min-width: 300px;
        }

        .rh3o-feature-image-wrapper {
            flex: 1;
            min-width: 300px;
        }

        .rh3o-feature-image {
            width: 100%;
            border-radius: var(--rh3o-radius);
            object-fit: cover;
            box-shadow: 0 20px 40px rgba(0,0,0,0.08);
        }

        .rh3o-section-tag {
            display: inline-block;
            color: var(--rh3o-primary);
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 16px;
            font-size: 0.9rem;
        }

        .rh3o-section-title {
            font-size: clamp(1.8rem, 3vw, 2.5rem);
            margin-bottom: 24px;
            color: var(--rh3o-bg-dark);
        }

        /* 行业矩阵 - 卡片网格 */
        .rh3o-matrix-bg {
            background-color: #f9fafb;
            border-radius: 40px;
            margin: 0 24px;
        }

        .rh3o-matrix-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
            margin-top: 48px;
        }

        .rh3o-matrix-card {
            background: var(--rh3o-white);
            padding: 40px;
            border-radius: var(--rh3o-radius);
            border: 1px solid rgba(0,0,0,0.05);
            transition: var(--rh3o-transition);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .rh3o-matrix-card:hover {
            border-color: var(--rh3o-primary);
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.05);
        }

        .rh3o-matrix-sector {
            font-size: 0.85rem;
            color: var(--rh3o-primary);
            font-weight: 700;
            margin-bottom: 12px;
        }

        .rh3o-matrix-usecase {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--rh3o-bg-dark);
        }

        .rh3o-matrix-strategy {
            font-size: 1rem;
            color: var(--rh3o-text-muted);
            margin-bottom: 24px;
            flex-grow: 1;
        }

        .rh3o-matrix-tool {
            font-size: 0.9rem;
            padding-top: 16px;
            border-top: 1px dashed #eee;
            font-weight: 600;
            color: var(--rh3o-bg-dark);
        }

        /* 性能统计区 */
        .rh3o-stats-section {
            background: var(--rh3o-bg-dark);
            color: var(--rh3o-white);
            border-radius: 40px;
            margin: 64px 24px;
            overflow: hidden;
            display: flex;
            flex-wrap: wrap;
        }

        .rh3o-stats-visual {
            flex: 1;
            min-width: 350px;
            background: url('images/performance_stats.jpg') center/cover no-repeat;
            min-height: 400px;
        }

        .rh3o-stats-content {
            flex: 1;
            min-width: 350px;
            padding: 80px 64px;
        }

        /* 页脚 */
        .rh3o-footer {
            background: #f4f7f9;
            padding: 80px 64px 40px;
            border-top: 1px solid #e1e8ed;
        }

        .rh3o-footer-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            justify-content: space-between;
            margin-bottom: 64px;
        }

        .rh3o-footer-brand {
            flex: 1;
            min-width: 250px;
        }

        .rh3o-footer-brand-name {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--rh3o-primary);
            margin-bottom: 16px;
        }

        .rh3o-footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            flex: 2;
            min-width: 300px;
        }

        .rh3o-footer-group {
            min-width: 150px;
        }

        .rh3o-footer-group h4 {
            margin-bottom: 20px;
            font-size: 1.1rem;
            color: var(--rh3o-bg-dark);
        }

        .rh3o-footer-group ul {
            list-style: none;
        }

        .rh3o-footer-group ul li {
            margin-bottom: 12px;
        }

        .rh3o-footer-group a {
            text-decoration: none;
            color: var(--rh3o-text-muted);
            transition: var(--rh3o-transition);
        }

        .rh3o-footer-group a:hover {
            color: var(--rh3o-primary);
        }

        .rh3o-copyright {
            text-align: center;
            padding-top: 40px;
            border-top: 1px solid #e1e8ed;
            color: var(--rh3o-text-muted);
            font-size: 0.9rem;
        }

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .rh3o-sidebar {
                flex: 0 0 100%;
                height: auto;
                position: relative;
                padding: 24px;
            }
            .rh3o-logo { margin-bottom: 24px; }
            .rh3o-nav { 
                flex-direction: row; 
                overflow-x: auto; 
                padding-bottom: 8px;
                -webkit-overflow-scrolling: touch;
            }
            .rh3o-nav-item { white-space: nowrap; }
            .rh3o-hero, .rh3o-section { padding: 48px 24px; }
        }

        @media (max-width: 768px) {
            .rh3o-hero-visual { order: -1; }
            .rh3o-stats-content { padding: 40px 24px; }
            .rh3o-feature-grid { gap: 32px; }
        }