:root {
            --rh3o-primary: #188fff;
            --rh3o-secondary: #003366;
            --rh3o-accent: #00d4ff;
            --rh3o-bg-light: #f4f7fa;
            --rh3o-text-dark: #1a1a1a;
            --rh3o-text-muted: #5f6368;
            --rh3o-white: #ffffff;
            --rh3o-glass: rgba(255, 255, 255, 0.85);
            --rh3o-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
            --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;
            line-height: 1.6;
            color: var(--rh3o-text-dark);
            background-color: var(--rh3o-bg-light);
            word-break: keep-all;
            overflow-x: hidden;
        }

        /* 导航栏设计 */
        .rh3o-header {
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            background: var(--rh3o-glass);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            box-shadow: var(--rh3o-shadow);
        }

        .rh3o-nav-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 80px;
        }

        .rh3o-logo {
            display: flex;
            align-items: center;
            min-width: 0;
        }

        .rh3o-logo img {
            height: 40px;
            width: auto;
            object-fit: contain;
        }

        .rh3o-nav-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 16px;
            min-width: 0;
        }

        .rh3o-nav-link {
            text-decoration: none;
            color: var(--rh3o-text-dark);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 8px 12px;
            border-radius: 8px;
            transition: var(--rh3o-transition);
        }

        .rh3o-nav-link:hover {
            color: var(--rh3o-primary);
            background: rgba(24, 143, 255, 0.05);
        }

        .rh3o-nav-link.active {
            color: var(--rh3o-primary);
            background: rgba(24, 143, 255, 0.1);
        }

        /* Hero 区块 - 独特非对称布局 */
        .rh3o-hero {
            padding: 160px 24px 96px;
            background: radial-gradient(circle at top right, #eef6ff 0%, #ffffff 100%);
            position: relative;
            overflow: hidden;
        }

        .rh3o-hero-inner {
            max-width: 1100px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 48px;
        }

        .rh3o-hero-content {
            flex: 1;
            min-width: 320px;
            word-break: break-word;
        }

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

        .rh3o-hero-subtitle {
            font-size: clamp(1rem, 2vw + 0.5rem, 1.25rem);
            color: var(--rh3o-text-muted);
            margin-bottom: 32px;
            max-width: 600px;
        }

        .rh3o-hero-visual {
            flex: 1;
            min-width: 320px;
            position: relative;
        }

        .rh3o-3d-box {
            width: 100%;
            aspect-ratio: 16/10;
            background: linear-gradient(45deg, var(--rh3o-secondary), var(--rh3o-primary));
            border-radius: 24px;
            box-shadow: 20px 20px 60px rgba(0, 0, 0, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: bold;
            font-size: 1.5rem;
            transform: perspective(1000px) rotateY(-15deg) rotateX(5deg);
            transition: var(--rh3o-transition);
        }

        .rh3o-3d-box:hover {
            transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
        }

        /* 行业部署矩阵 - Grid 布局 */
        .rh3o-matrix-section {
            padding: 96px 24px;
            background: var(--rh3o-white);
        }

        .rh3o-container {
            max-width: 1400px;
            margin: 0 auto;
        }

        .rh3o-section-title {
            text-align: center;
            font-size: 2.5rem;
            margin-bottom: 64px;
            color: var(--rh3o-secondary);
        }

        .rh3o-matrix-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 32px;
        }

        .rh3o-matrix-card {
            background: var(--rh3o-bg-light);
            padding: 40px;
            border-radius: 16px;
            border: 1px solid rgba(0, 0, 0, 0.05);
            transition: var(--rh3o-transition);
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        .rh3o-matrix-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
            background: var(--rh3o-white);
        }

        .rh3o-sector-tag {
            display: inline-block;
            padding: 4px 12px;
            background: var(--rh3o-primary);
            color: white;
            border-radius: 20px;
            font-size: 0.85rem;
            margin-bottom: 16px;
            width: fit-content;
        }

        .rh3o-matrix-card h3 {
            margin-bottom: 16px;
            color: var(--rh3o-secondary);
        }

        .rh3o-matrix-strategy {
            font-size: 0.95rem;
            color: var(--rh3o-text-muted);
            margin-bottom: 24px;
            flex-grow: 1;
        }

        .rh3o-key-tool {
            font-weight: 600;
            color: var(--rh3o-primary);
            padding-top: 16px;
            border-top: 1px dashed rgba(0, 0, 0, 0.1);
        }

        /* 3D 加速开启指南区块 */
        .rh3o-guide-section {
            padding: 96px 24px;
            background: var(--rh3o-secondary);
            color: var(--rh3o-white);
        }

        .rh3o-guide-content {
            max-width: 900px;
            margin: 0 auto;
        }

        .rh3o-step {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            margin-bottom: 48px;
            align-items: flex-start;
            min-width: 0;
        }

        .rh3o-step-number {
            width: 48px;
            height: 48px;
            background: var(--rh3o-accent);
            color: var(--rh3o-secondary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            flex-shrink: 0;
        }

        .rh3o-step-info {
            flex: 1;
            min-width: 280px;
            word-break: break-word;
        }

        .rh3o-step-info h4 {
            font-size: 1.5rem;
            margin-bottom: 12px;
        }

        /* 动态内容区块 */
        .rh3o-news-section {
            padding: 96px 24px;
            background: var(--rh3o-bg-light);
        }

        /* 页脚设计 */
        .rh3o-footer {
            background: var(--rh3o-white);
            padding: 64px 24px 32px;
            border-top: 1px solid rgba(0, 0, 0, 0.1);
        }

        .rh3o-footer-content {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 48px;
        }

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

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

        .rh3o-footer-links {
            flex: 2;
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            min-width: 0;
        }

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

        .rh3o-link-group h5 {
            margin-bottom: 20px;
            font-size: 1.1rem;
        }

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

        .rh3o-link-group li {
            margin-bottom: 10px;
        }

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

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

        .rh3o-copyright {
            margin-top: 64px;
            text-align: center;
            padding-top: 32px;
            border-top: 1px solid rgba(0, 0, 0, 0.05);
            color: var(--rh3o-text-muted);
            font-size: 0.9rem;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .rh3o-nav-menu {
                display: none; /* 简化移动端处理，实际项目中应有汉堡菜单 */
            }
            .rh3o-hero {
                padding-top: 120px;
            }
            .rh3o-matrix-grid {
                grid-template-columns: 1fr;
            }
            .rh3o-hero-inner {
                text-align: center;
            }
            .rh3o-hero-subtitle {
                margin-left: auto;
                margin-right: auto;
            }
        }