:root {
            --hjuo-primary: #4285F4;
            --hjuo-success: #34A853;
            --hjuo-warning: #FBBC05;
            --hjuo-danger: #EA4335;
            --hjuo-text-dark: #202124;
            --hjuo-text-light: #5f6368;
            --hjuo-bg-light: #f8f9fa;
            --hjuo-white: #ffffff;
            --hjuo-spacing-unit: 8px;
            --hjuo-max-width: 1300px;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
            color: var(--hjuo-text-dark);
            line-height: 1.6;
            background-color: var(--hjuo-white);
            overflow-x: hidden;
            word-break: keep-all;
        }

        /* 布局基础 */
        .hjuo-container {
            max-width: var(--hjuo-max-width);
            margin: 0 auto;
            padding: 0 calc(var(--hjuo-spacing-unit) * 3);
            width: 100%;
        }

        .hjuo-flex {
            display: flex;
            flex-wrap: wrap;
        }

        .hjuo-flex-item {
            min-width: 0;
            flex: 1 1 300px;
        }

        .hjuo-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
            gap: calc(var(--hjuo-spacing-unit) * 4);
        }

        /* 导航栏 */
        .hjuo-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            padding: calc(var(--hjuo-spacing-unit) * 2) 0;
        }

        .hjuo-nav-wrapper {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
        }

        .hjuo-logo {
            display: flex;
            align-items: center;
        }

        .hjuo-logo img {
            height: 40px;
            width: auto;
        }

        .hjuo-nav-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: calc(var(--hjuo-spacing-unit) * 3);
        }

        .hjuo-nav-link {
            text-decoration: none;
            color: var(--hjuo-text-light);
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.3s ease;
            padding: calc(var(--hjuo-spacing-unit) * 1) 0;
            position: relative;
        }

        .hjuo-nav-link:hover, .hjuo-nav-link.active {
            color: var(--hjuo-primary);
        }

        .hjuo-nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--hjuo-primary);
        }

        /* Hero 区块 - 独特斜角布局 */
        .hjuo-hero {
            padding: calc(var(--hjuo-spacing-unit) * 12) 0;
            background: linear-gradient(135deg, #f1f5ff 0%, #ffffff 100%);
            position: relative;
            overflow: hidden;
        }

        .hjuo-hero-content {
            max-width: 800px;
            position: relative;
            z-index: 2;
        }

        .hjuo-hero-title {
            font-size: clamp(2rem, 5vw + 1rem, 4rem);
            font-weight: 800;
            line-height: 1.1;
            margin-bottom: calc(var(--hjuo-spacing-unit) * 3);
            color: var(--hjuo-text-dark);
            word-break: break-word;
        }

        .hjuo-hero-subtitle {
            font-size: clamp(1.1rem, 2vw + 0.5rem, 1.5rem);
            color: var(--hjuo-text-light);
            margin-bottom: calc(var(--hjuo-spacing-unit) * 6);
            max-width: 600px;
        }

        .hjuo-btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: calc(var(--hjuo-spacing-unit) * 2);
        }

        .hjuo-btn {
            padding: 16px 36px;
            border-radius: 50px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s ease;
            text-align: center;
        }

        .hjuo-btn-primary {
            background: var(--hjuo-primary);
            color: var(--hjuo-white);
            box-shadow: 0 4px 14px rgba(66, 133, 244, 0.4);
        }

        .hjuo-btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(66, 133, 244, 0.5);
        }

        /* 引擎架构区块 */
        .hjuo-engine-section {
            padding: calc(var(--hjuo-spacing-unit) * 12) 0;
            background: var(--hjuo-bg-light);
        }

        .hjuo-section-header {
            text-align: center;
            margin-bottom: calc(var(--hjuo-spacing-unit) * 8);
        }

        .hjuo-section-title {
            font-size: clamp(1.8rem, 4vw, 2.5rem);
            margin-bottom: calc(var(--hjuo-spacing-unit) * 2);
        }

        .hjuo-card {
            background: var(--hjuo-white);
            padding: calc(var(--hjuo-spacing-unit) * 5);
            border-radius: 24px;
            border: 1px solid rgba(0,0,0,0.03);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            height: 100%;
        }

        .hjuo-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.08);
        }

        .hjuo-card-icon {
            width: 64px;
            height: 64px;
            background: var(--hjuo-bg-light);
            border-radius: 16px;
            margin-bottom: calc(var(--hjuo-spacing-unit) * 3);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            color: var(--hjuo-primary);
        }

        .hjuo-card-title {
            font-size: 1.4rem;
            margin-bottom: calc(var(--hjuo-spacing-unit) * 2);
            color: var(--hjuo-text-dark);
        }

        .hjuo-card-text {
            color: var(--hjuo-text-light);
            font-size: 1rem;
            line-height: 1.7;
        }

        /* 流程区块 */
        .hjuo-flow-section {
            padding: calc(var(--hjuo-spacing-unit) * 12) 0;
        }

        .hjuo-flow-item {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: calc(var(--hjuo-spacing-unit) * 8);
            margin-bottom: calc(var(--hjuo-spacing-unit) * 10);
        }

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

        .hjuo-flow-image {
            flex: 1 1 450px;
            background: #eef2f7;
            border-radius: 32px;
            overflow: hidden;
            min-height: 300px;
            position: relative;
        }

        .hjuo-flow-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }

        .hjuo-flow-info {
            flex: 1 1 400px;
        }

        .hjuo-step-badge {
            display: inline-block;
            padding: 4px 16px;
            background: rgba(66, 133, 244, 0.1);
            color: var(--hjuo-primary);
            border-radius: 20px;
            font-weight: 700;
            margin-bottom: calc(var(--hjuo-spacing-unit) * 2);
        }

        /* 资讯区块 */
        .hjuo-news-section {
            padding: calc(var(--hjuo-spacing-unit) * 10) 0;
            background: #fff;
        }

        /* 页脚 */
        .hjuo-footer {
            background: var(--hjuo-text-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: calc(var(--hjuo-spacing-unit) * 10) 0 calc(var(--hjuo-spacing-unit) * 5);
        }

        .hjuo-footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: calc(var(--hjuo-spacing-unit) * 6);
            margin-bottom: calc(var(--hjuo-spacing-unit) * 8);
        }

        .hjuo-footer-brand h2 {
            color: #fff;
            margin-bottom: calc(var(--hjuo-spacing-unit) * 2);
            font-size: 1.5rem;
        }

        .hjuo-footer-title {
            color: #fff;
            font-size: 1.1rem;
            margin-bottom: calc(var(--hjuo-spacing-unit) * 3);
            font-weight: 600;
        }

        .hjuo-footer-links {
            list-style: none;
        }

        .hjuo-footer-links li {
            margin-bottom: calc(var(--hjuo-spacing-unit) * 1.5);
        }

        .hjuo-footer-links a {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .hjuo-footer-links a:hover {
            color: var(--hjuo-primary);
        }

        .hjuo-footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: calc(var(--hjuo-spacing-unit) * 4);
            text-align: center;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.4);
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .hjuo-nav-menu {
                display: none; /* 简化演示，手机端通常有汉堡菜单 */
            }
            .hjuo-hero {
                padding: calc(var(--hjuo-spacing-unit) * 6) 0;
                text-align: center;
            }
            .hjuo-hero-content {
                margin: 0 auto;
            }
            .hjuo-btn-group {
                justify-content: center;
            }
            .hjuo-flow-item {
                text-align: center;
            }
        }