:root {
            --hjuo-primary: #4285F4;
            --hjuo-success: #34A853;
            --hjuo-warning: #FBBC05;
            --hjuo-danger: #EA4335;
            --hjuo-dark: #202124;
            --hjuo-light: #F8F9FA;
            --hjuo-text: #3C4043;
            --hjuo-gradient: linear-gradient(135deg, #4285F4 0%, #34A853 100%);
            --hjuo-spacing-unit: 8px;
            --hjuo-container-width: 1100px;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            word-break: break-word;
            overflow-wrap: break-word;
        }

        body {
            font-family: 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            background-color: #FFFFFF;
            color: var(--hjuo-text);
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* 导航栏设计 */
        .hjuo-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
        }

        .hjuo-nav-container {
            max-width: var(--hjuo-container-width);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 72px;
            flex-wrap: wrap;
        }

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

        .hjuo-logo img {
            height: 36px;
            width: auto;
        }

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

        .hjuo-nav-item a {
            text-decoration: none;
            color: var(--hjuo-text);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 8px;
            transition: all 0.2s ease;
            white-space: normal;
        }

        .hjuo-nav-item a:hover {
            color: var(--hjuo-primary);
            background: rgba(66, 133, 244, 0.05);
        }

        .hjuo-nav-item a.hjuo-active {
            color: #FFFFFF;
            background: var(--hjuo-primary);
        }

        /* Hero 区：全屏背景与中心聚焦 */
        .hjuo-hero {
            padding: 160px 24px 96px;
            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);
            text-align: center;
            position: relative;
        }

        .hjuo-hero-inner {
            max-width: 900px;
            margin: 0 auto;
        }

        .hjuo-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4rem);
            font-weight: 800;
            line-height: 1.1;
            margin-bottom: 24px;
            background: linear-gradient(to right, var(--hjuo-primary), var(--hjuo-success));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            word-break: keep-all;
        }

        .hjuo-hero-subtitle {
            font-size: clamp(1.1rem, 2vw + 0.5rem, 1.4rem);
            color: #5F6368;
            max-width: 700px;
            margin: 0 auto 48px;
            line-height: 1.5;
        }

        .hjuo-cache-scanner {
            width: 200px;
            height: 200px;
            margin: 0 auto 40px;
            border: 2px solid var(--hjuo-primary);
            border-radius: 50%;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            background: white;
            box-shadow: 0 20px 40px rgba(0,0,0,0.05);
        }

        .hjuo-cache-scanner::after {
            content: '';
            position: absolute;
            width: 100%;
            height: 100%;
            border: 2px solid var(--hjuo-success);
            border-radius: 50%;
            border-top-color: transparent;
            animation: hjuo-spin 3s linear infinite;
        }

        @keyframes hjuo-spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        .hjuo-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(66, 133, 244, 0.1);
            color: var(--hjuo-primary);
            border-radius: 100px;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 16px;
        }

        /* 核心架构区：卡片网格布局 */
        .hjuo-section {
            padding: 96px 24px;
            max-width: var(--hjuo-container-width);
            margin: 0 auto;
        }

        .hjuo-section-header {
            margin-bottom: 64px;
            text-align: center;
        }

        .hjuo-section-title {
            font-size: clamp(1.8rem, 3vw, 2.5rem);
            margin-bottom: 16px;
            color: var(--hjuo-dark);
        }

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

        .hjuo-engine-card {
            background: #FFFFFF;
            border: 1px solid rgba(0,0,0,0.05);
            border-radius: 24px;
            padding: 40px;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
            min-width: 0;
        }

        .hjuo-engine-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 30px 60px rgba(0,0,0,0.08);
            border-color: var(--hjuo-primary);
        }

        .hjuo-card-icon-box {
            width: 56px;
            height: 56px;
            background: var(--hjuo-light);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 24px;
            font-size: 24px;
            font-weight: bold;
            color: var(--hjuo-primary);
        }

        .hjuo-card-name {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--hjuo-dark);
        }

        .hjuo-card-logic {
            font-size: 1rem;
            color: #5F6368;
            margin-bottom: 16px;
            line-height: 1.7;
        }

        .hjuo-card-metric {
            display: inline-block;
            padding: 4px 12px;
            background: #E8F0FE;
            color: var(--hjuo-primary);
            border-radius: 6px;
            font-size: 0.85rem;
            font-weight: 600;
        }

        /* 流程引导区：交替混排 */
        .hjuo-flow-section {
            background-color: #F8F9FA;
            border-radius: 48px;
            margin: 48px auto;
            padding: 80px 48px;
        }

        .hjuo-flow-item {
            display: flex;
            align-items: center;
            gap: 64px;
            margin-bottom: 80px;
            flex-wrap: wrap;
        }

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

        .hjuo-flow-content {
            flex: 1;
            min-width: 300px;
        }

        .hjuo-flow-visual {
            flex: 1;
            min-width: 300px;
            background: #FFFFFF;
            height: 300px;
            border-radius: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 10px 30px rgba(0,0,0,0.03);
            position: relative;
        }

        .hjuo-step-num {
            font-size: 4rem;
            font-weight: 900;
            color: rgba(66, 133, 244, 0.1);
            position: absolute;
            top: 20px;
            left: 20px;
        }

        .hjuo-flow-title {
            font-size: 2rem;
            margin-bottom: 20px;
            color: var(--hjuo-dark);
        }

        .hjuo-flow-detail {
            font-size: 1.1rem;
            color: #5F6368;
            line-height: 1.8;
        }

        /* 页脚设计 */
        .hjuo-footer {
            background: var(--hjuo-dark);
            color: #FFFFFF;
            padding: 80px 24px 40px;
        }

        .hjuo-footer-grid {
            max-width: var(--hjuo-container-width);
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            padding-bottom: 48px;
        }

        .hjuo-footer-brand-name {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 24px;
            color: #FFFFFF;
        }

        .hjuo-footer-text {
            color: #9AA0A6;
            font-size: 0.9rem;
        }

        .hjuo-footer-links h4 {
            margin-bottom: 24px;
            font-size: 1.1rem;
        }

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

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

        .hjuo-footer-links a {
            color: #9AA0A6;
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

        .hjuo-copyright {
            text-align: center;
            padding-top: 40px;
            color: #5F6368;
            font-size: 0.85rem;
        }

        /* 按钮样式 */
        .hjuo-btn {
            display: inline-block;
            padding: 16px 40px;
            border-radius: 100px;
            font-size: 1.1rem;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            cursor: pointer;
            border: none;
        }

        .hjuo-btn-primary {
            background: var(--hjuo-primary);
            color: #FFFFFF;
            box-shadow: 0 10px 20px rgba(66, 133, 244, 0.3);
        }

        .hjuo-btn-primary:hover {
            background: #1A73E8;
            transform: scale(1.05);
            box-shadow: 0 15px 30px rgba(66, 133, 244, 0.4);
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .hjuo-nav-container {
                height: auto;
                padding: 16px;
            }
            .hjuo-nav-menu {
                justify-content: center;
                margin-top: 16px;
            }
            .hjuo-hero {
                padding: 140px 16px 64px;
            }
            .hjuo-flow-section {
                padding: 40px 24px;
            }
            .hjuo-flow-item {
                gap: 32px;
                text-align: center;
            }
            .hjuo-flow-visual {
                height: 200px;
            }
        }