:root {
            --h5hz5o-primary: #4285F4;
            --h5hz5o-red: #EA4335;
            --h5hz5o-yellow: #FBBC05;
            --h5hz5o-green: #34A853;
            --h5hz5o-text: #202124;
            --h5hz5o-bg: #ffffff;
            --h5hz5o-gray: #f8f9fa;
            --h5hz5o-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: "Segoe UI", Roboto, Helvetica, Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
            color: var(--h5hz5o-text);
            line-height: 1.6;
            overflow-x: hidden;
            background-color: var(--h5hz5o-bg);
            word-break: keep-all;
        }

        /* 导航栏 */
        .h5hz5o-nav-wrapper {
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
        }

        .h5hz5o-nav-container {
            max-width: 1100px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 16px 24px;
        }

        .h5hz5o-logo {
            flex-shrink: 0;
            min-width: 0;
        }

        .h5hz5o-logo img {
            height: 32px;
            display: block;
        }

        .h5hz5o-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 8px;
            min-width: 0;
        }

        .h5hz5o-menu li a {
            text-decoration: none;
            color: #5f6368;
            font-size: 14px;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 4px;
            transition: var(--h5hz5o-transition);
            word-break: keep-all;
        }

        .h5hz5o-menu li a:hover {
            background-color: rgba(66, 133, 244, 0.05);
            color: var(--h5hz5o-primary);
        }

        .h5hz5o-menu li a.h5hz5o-active {
            color: var(--h5hz5o-primary);
            background-color: rgba(66, 133, 244, 0.1);
        }

        /* Hero 区 - 独特堆叠布局 */
        .h5hz5o-hero {
            padding-top: 140px;
            padding-bottom: 96px;
            background: radial-gradient(circle at 10% 20%, rgba(66, 133, 244, 0.05) 0%, rgba(255, 255, 255, 1) 90%);
            text-align: center;
            position: relative;
        }

        .h5hz5o-container-narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 32px;
        }

        .h5hz5o-hero-tag {
            display: inline-block;
            background: linear-gradient(90deg, var(--h5hz5o-primary), var(--h5hz5o-green));
            color: white;
            padding: 4px 16px;
            border-radius: 20px;
            font-size: 14px;
            margin-bottom: 24px;
            font-weight: 600;
        }

        .h5hz5o-hero h1 {
            font-size: clamp(2.5rem, 5vw + 1rem, 4rem);
            line-height: 1.1;
            font-weight: 800;
            margin-bottom: 24px;
            color: #1a1a1a;
            word-break: break-word;
        }

        .h5hz5o-hero p {
            font-size: clamp(1.1rem, 2vw + 0.5rem, 1.4rem);
            color: #5f6368;
            max-width: 700px;
            margin: 0 auto 48px;
            word-break: break-word;
        }

        /* 核心动力模块 - Grid布局 */
        .h5hz5o-tech-section {
            padding: 96px 0;
            background-color: var(--h5hz5o-bg);
        }

        .h5hz5o-section-title {
            text-align: center;
            margin-bottom: 64px;
        }

        .h5hz5o-section-title h2 {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .h5hz5o-grid-tech {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .h5hz5o-card {
            background: #ffffff;
            border: 1px solid #e0e0e0;
            border-radius: 24px;
            padding: 40px;
            transition: var(--h5hz5o-transition);
            position: relative;
            overflow: hidden;
            min-width: 0;
        }

        .h5hz5o-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.08);
            border-color: var(--h5hz5o-primary);
        }

        .h5hz5o-card-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--h5hz5o-gray);
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            transition: var(--h5hz5o-transition);
        }

        .h5hz5o-card:nth-child(1) .h5hz5o-card-icon { color: var(--h5hz5o-primary); }
        .h5hz5o-card:nth-child(2) .h5hz5o-card-icon { color: var(--h5hz5o-red); }
        .h5hz5o-card:nth-child(3) .h5hz5o-card-icon { color: var(--h5hz5o-yellow); }

        .h5hz5o-card h3 {
            font-size: 20px;
            margin-bottom: 16px;
            color: #1a1a1a;
        }

        .h5hz5o-card p {
            color: #5f6368;
            font-size: 15px;
            line-height: 1.7;
            margin-bottom: 24px;
            word-break: break-word;
        }

        .h5hz5o-metric {
            display: inline-block;
            background: #f1f3f4;
            padding: 6px 12px;
            border-radius: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--h5hz5o-primary);
        }

        /* 隐私与安全盾 - 左右分布设计 */
        .h5hz5o-shield-section {
            padding: 96px 0;
            background-color: #f8f9fa;
        }

        .h5hz5o-shield-item {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            max-width: 1100px;
            margin: 0 auto 64px auto;
            padding: 0 24px;
            gap: 48px;
        }

        .h5hz5o-shield-item:nth-child(even) {
            flex-direction: row-reverse;
        }

        .h5hz5o-shield-content {
            flex: 1;
            min-width: 300px;
        }

        .h5hz5o-shield-visual {
            flex: 1;
            min-width: 300px;
            background: white;
            height: 300px;
            border-radius: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
            position: relative;
        }

        /* 模拟安全盾视觉效果 */
        .h5hz5o-shield-circle {
            width: 150px;
            height: 150px;
            border: 10px solid var(--h5hz5o-green);
            border-radius: 50%;
            position: relative;
        }

        .h5hz5o-shield-circle::after {
            content: "";
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 80px;
            height: 80px;
            background: var(--h5hz5o-green);
            border-radius: 50%;
            opacity: 0.2;
        }

        .h5hz5o-shield-content h3 {
            font-size: 28px;
            margin-bottom: 20px;
            color: #1a1a1a;
        }

        .h5hz5o-shield-content p {
            font-size: 16px;
            color: #5f6368;
            margin-bottom: 16px;
        }

        .h5hz5o-shield-info {
            font-weight: 700;
            color: var(--h5hz5o-green);
            display: block;
        }

        /* 问答区块 */
        .h5hz5o-faq-section {
            padding: 96px 0;
            max-width: 900px;
            margin: 0 auto;
            padding: 96px 24px;
        }

        .h5hz5o-faq-item {
            border-bottom: 1px solid #e0e0e0;
            padding: 24px 0;
        }

        .h5hz5o-faq-item h4 {
            font-size: 18px;
            margin-bottom: 12px;
            color: #1a1a1a;
            display: flex;
            align-items: center;
        }

        .h5hz5o-faq-item h4::before {
            content: "Q";
            margin-right: 12px;
            color: var(--h5hz5o-primary);
            font-weight: 800;
        }

        .h5hz5o-faq-item p {
            color: #5f6368;
            padding-left: 30px;
        }

        /* 动态内容区块标记 */
        .h5hz5o-news-section {
            padding: 96px 0;
            background: #fff;
            text-align: center;
        }

        /* 页脚 */
        .h5hz5o-footer {
            background-color: #f1f3f4;
            padding: 64px 24px 32px;
            text-align: center;
        }

        .h5hz5o-footer-brand {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 24px;
            color: #3c4043;
        }

        .h5hz5o-footer-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 24px;
            margin-bottom: 32px;
            list-style: none;
        }

        .h5hz5o-footer-links a {
            text-decoration: none;
            color: #5f6368;
            font-size: 14px;
        }

        .h5hz5o-footer-links a:hover {
            text-decoration: underline;
        }

        .h5hz5o-copyright {
            font-size: 12px;
            color: #70757a;
            border-top: 1px solid #dadce0;
            padding-top: 32px;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .h5hz5o-nav-container {
                justify-content: center;
                gap: 16px;
            }
            .h5hz5o-menu {
                justify-content: center;
            }
            .h5hz5o-shield-item {
                flex-direction: column !important;
                text-align: center;
            }
            .h5hz5o-shield-visual {
                width: 100%;
            }
            .h5hz5o-hero h1 {
                font-size: 32px;
            }
        }