/* 变量定义 */
        :root {
            --rh3o-primary: #1880C4;
            --rh3o-secondary: #003554;
            --rh3o-accent: #00d4ff;
            --rh3o-bg-light: #f8fafc;
            --rh3o-bg-dark: #0f172a;
            --rh3o-text-main: #334155;
            --rh3o-text-heading: #1e293b;
            --rh3o-white: #ffffff;
            --rh3o-error: #ef4444;
            --rh3o-success: #10b981;
            --rh3o-gap: 32px;
            --rh3o-radius: 16px;
            --rh3o-container-width: 1100px;
        }

        /* 基础重置 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            line-height: 1.6;
            color: var(--rh3o-text-main);
            background-color: var(--rh3o-bg-light);
            word-break: keep-all;
            overflow-x: hidden;
        }

        /* 布局容器 */
        .rh3o-container {
            max-width: var(--rh3o-container-width);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* 导航栏 */
        .rh3o-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            z-index: 1000;
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
        }

        .rh3o-nav-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            height: 80px;
            min-width: 0;
        }

        .rh3o-logo {
            flex: 0 0 auto;
            min-width: 0;
        }

        .rh3o-logo img {
            height: 45px;
            width: auto;
            display: block;
        }

        .rh3o-nav-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 20px;
            min-width: 0;
        }

        .rh3o-nav-menu a {
            text-decoration: none;
            color: var(--rh3o-text-heading);
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.3s ease;
            padding: 8px 4px;
            border-bottom: 2px solid transparent;
        }

        .rh3o-nav-menu a:hover {
            color: var(--rh3o-primary);
        }

        .rh3o-nav-menu a.active {
            color: var(--rh3o-primary);
            border-bottom-color: var(--rh3o-primary);
        }

        /* Hero 区域 - 独特的对角线分割设计 */
        .rh3o-hero {
            padding: 160px 0 100px;
            background: linear-gradient(135deg, var(--rh3o-secondary) 0%, var(--rh3o-primary) 100%);
            color: var(--rh3o-white);
            position: relative;
            overflow: hidden;
        }

        .rh3o-hero::after {
            content: '';
            position: absolute;
            bottom: -50px;
            right: -50px;
            width: 300px;
            height: 300px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 50%;
        }

        .rh3o-hero-content {
            max-width: 800px;
            word-break: break-word;
        }

        .rh3o-hero h1 {
            font-size: clamp(2.5rem, 5vw, 3.5rem);
            line-height: 1.2;
            margin-bottom: 24px;
            font-weight: 800;
        }

        .rh3o-hero p {
            font-size: clamp(1.1rem, 2vw, 1.4rem);
            opacity: 0.9;
            margin-bottom: 40px;
            max-width: 650px;
        }

        /* 诊断矩阵区块 */
        .rh3o-section {
            padding: 96px 0;
        }

        .rh3o-section-title {
            text-align: center;
            margin-bottom: 64px;
        }

        .rh3o-section-title h2 {
            font-size: clamp(2rem, 3vw, 2.5rem);
            color: var(--rh3o-text-heading);
            margin-bottom: 16px;
        }

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

        .rh3o-diagnostic-card {
            background: var(--rh3o-white);
            border-radius: var(--rh3o-radius);
            padding: 40px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: 1px solid rgba(0, 0, 0, 0.05);
            min-width: 0;
            display: flex;
            flex-direction: column;
        }

        .rh3o-diagnostic-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
        }

        .rh3o-card-icon {
            font-size: 2.5rem;
            margin-bottom: 24px;
        }

        .rh3o-diagnostic-card h3 {
            font-size: 1.5rem;
            color: var(--rh3o-text-heading);
            margin-bottom: 16px;
        }

        .rh3o-diagnostic-card ul {
            list-style: none;
            margin-bottom: 24px;
        }

        .rh3o-diagnostic-card li {
            padding: 8px 0;
            border-bottom: 1px solid rgba(0, 0, 0, 0.03);
            display: flex;
            align-items: center;
        }

        .rh3o-diagnostic-card li::before {
            content: '→';
            color: var(--rh3o-primary);
            margin-right: 12px;
            font-weight: bold;
        }

        /* 步骤引导区 */
        .rh3o-step-section {
            background-color: var(--rh3o-white);
            border-radius: 40px;
            padding: 80px 40px;
            margin: 40px 0;
        }

        .rh3o-step-item {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            margin-bottom: 64px;
            align-items: center;
        }

        .rh3o-step-item:nth-child(even) {
            flex-direction: row-reverse;
        }

        .rh3o-step-text {
            flex: 1;
            min-width: 300px;
        }

        .rh3o-step-badge {
            display: inline-block;
            background: var(--rh3o-primary);
            color: var(--rh3o-white);
            padding: 4px 16px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: bold;
            margin-bottom: 16px;
        }

        .rh3o-step-text h3 {
            font-size: 2rem;
            margin-bottom: 20px;
            color: var(--rh3o-text-heading);
        }

        .rh3o-step-visual {
            flex: 1;
            min-width: 300px;
            background: var(--rh3o-bg-dark);
            border-radius: var(--rh3o-radius);
            padding: 30px;
            color: #10b981;
            font-family: 'Courier New', Courier, monospace;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
            font-size: 0.9rem;
            overflow-x: auto;
        }

        /* 部署矩阵表格 */
        .rh3o-matrix-container {
            overflow-x: auto;
            background: var(--rh3o-white);
            border-radius: var(--rh3o-radius);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            margin-top: 48px;
        }

        .rh3o-matrix-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 800px;
        }

        .rh3o-matrix-table th {
            background: var(--rh3o-secondary);
            color: var(--rh3o-white);
            text-align: left;
            padding: 20px;
        }

        .rh3o-matrix-table td {
            padding: 20px;
            border-bottom: 1px solid #edf2f7;
        }

        .rh3o-tag {
            background: #e2e8f0;
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 0.75rem;
            font-weight: 600;
        }

        /* 页脚 */
        .rh3o-footer {
            background: var(--rh3o-bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 80px 0 40px;
        }

        .rh3o-footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 48px;
            margin-bottom: 64px;
        }

        .rh3o-footer-brand h4 {
            color: var(--rh3o-white);
            font-size: 1.5rem;
            margin-bottom: 20px;
        }

        .rh3o-footer-links h5 {
            color: var(--rh3o-white);
            margin-bottom: 24px;
            font-size: 1.1rem;
        }

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

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

        .rh3o-footer-links a {
            color: inherit;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .rh3o-footer-links a:hover {
            color: var(--rh3o-accent);
        }

        .rh3o-copyright {
            text-align: center;
            padding-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .rh3o-nav-inner {
                height: auto;
                padding: 16px 0;
                flex-direction: column;
                gap: 16px;
            }

            .rh3o-nav-menu {
                justify-content: center;
                gap: 12px;
            }

            .rh3o-hero {
                padding-top: 180px;
                text-align: center;
            }

            .rh3o-hero-content {
                margin: 0 auto;
            }

            .rh3o-step-item, .rh3o-step-item:nth-child(even) {
                flex-direction: column;
                text-align: center;
            }
            
            .rh3o-step-visual {
                width: 100%;
            }
        }

        /* 交互增强 */
        .rh3o-btn {
            display: inline-block;
            padding: 14px 32px;
            border-radius: 30px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .rh3o-btn-primary {
            background: var(--rh3o-accent);
            color: var(--rh3o-secondary);
        }

        .rh3o-btn-primary:hover {
            transform: scale(1.05);
            box-shadow: 0 10px 20px rgba(0, 212, 255, 0.3);
        }