:root {
            --h5hz5o-primary: #4285F4;
            --h5hz5o-success: #34A853;
            --h5hz5o-warning: #FBBC05;
            --h5hz5o-danger: #EA4335;
            --h5hz5o-text: #202124;
            --h5hz5o-text-light: #5f6368;
            --h5hz5o-bg: #ffffff;
            --h5hz5o-section-gray: #f8f9fa;
            --h5hz5o-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --h5hz5o-container-width: 1300px;
        }

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
            color: var(--h5hz5o-text);
            line-height: 1.6;
            background-color: var(--h5hz5o-bg);
            overflow-x: hidden;
        }

        /* 布局基础 */
        .h5hz5o-container {
            max-width: var(--h5hz5o-container-width);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        .h5hz5o-flex {
            display: flex;
            flex-wrap: wrap;
        }

        .h5hz5o-flex-item {
            min-width: 0;
        }

        /* 导航栏 */
        .h5hz5o-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
            transition: var(--h5hz5o-transition);
        }

        .h5hz5o-nav-container {
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .h5hz5o-logo {
            flex-shrink: 0;
            display: flex;
            align-items: center;
        }

        .h5hz5o-logo img {
            height: 32px;
            width: auto;
        }

        .h5hz5o-nav-menu {
            display: flex;
            list-style: none;
            gap: 8px;
            overflow-x: auto;
            scrollbar-width: none;
        }

        .h5hz5o-nav-menu::-webkit-scrollbar {
            display: none;
        }

        .h5hz5o-nav-link {
            text-decoration: none;
            color: var(--h5hz5o-text-light);
            font-size: 15px;
            padding: 8px 16px;
            border-radius: 20px;
            transition: var(--h5hz5o-transition);
            white-space: nowrap;
            word-break: keep-all;
        }

        .h5hz5o-nav-link:hover {
            background: rgba(0,0,0,0.04);
            color: var(--h5hz5o-text);
        }

        .h5hz5o-nav-link.h5hz5o-active {
            color: var(--h5hz5o-primary);
            background: rgba(66, 133, 244, 0.1);
            font-weight: 600;
        }

        /* Hero 区域 - 非对称独特布局 */
        .h5hz5o-hero {
            padding-top: 140px;
            padding-bottom: 96px;
            background: radial-gradient(circle at 80% 20%, rgba(66, 133, 244, 0.05) 0%, transparent 40%);
            position: relative;
        }

        .h5hz5o-hero-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 48px;
            align-items: center;
        }

        .h5hz5o-hero-content {
            word-break: break-word;
        }

        .h5hz5o-hero-tag {
            display: inline-block;
            padding: 6px 16px;
            background: linear-gradient(90deg, var(--h5hz5o-primary), #64b5f6);
            color: white;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .h5hz5o-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4rem);
            line-height: 1.1;
            font-weight: 800;
            color: var(--h5hz5o-text);
            margin-bottom: 24px;
            white-space: normal;
            word-break: keep-all;
        }

        .h5hz5o-hero-subtitle {
            font-size: clamp(1.1rem, 1.5vw + 0.5rem, 1.35rem);
            color: var(--h5hz5o-text-light);
            margin-bottom: 40px;
            max-width: 600px;
        }

        .h5hz5o-hero-image {
            position: relative;
            width: 100%;
            min-width: 0;
        }

        .h5hz5o-hero-image img {
            width: 100%;
            height: auto;
            border-radius: 24px;
            box-shadow: 0 32px 64px rgba(0,0,0,0.1);
            transition: var(--h5hz5o-transition);
        }

        .h5hz5o-hero-image:hover img {
            transform: translateY(-10px);
        }

        /* 按钮设计 */
        .h5hz5o-btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .h5hz5o-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 16px 36px;
            border-radius: 12px;
            font-weight: 600;
            text-decoration: none;
            transition: var(--h5hz5o-transition);
            font-size: 16px;
            cursor: pointer;
        }

        .h5hz5o-btn-primary {
            background: var(--h5hz5o-primary);
            color: white;
            box-shadow: 0 8px 24px rgba(66, 133, 244, 0.3);
        }

        .h5hz5o-btn-primary:hover {
            background: #3367d6;
            box-shadow: 0 12px 32px rgba(66, 133, 244, 0.4);
            transform: translateY(-2px);
        }

        .h5hz5o-btn-outline {
            border: 2px solid #e0e0e0;
            color: var(--h5hz5o-text);
        }

        .h5hz5o-btn-outline:hover {
            background: #f1f3f4;
            border-color: #dadce0;
        }

        /* 技术详情区块 */
        .h5hz5o-section {
            padding: 96px 0;
            word-break: break-word;
        }

        .h5hz5o-section-alt {
            background-color: var(--h5hz5o-section-gray);
        }

        .h5hz5o-section-title {
            text-align: center;
            font-size: clamp(1.8rem, 3vw + 0.5rem, 2.5rem);
            margin-bottom: 64px;
            font-weight: 700;
        }

        .h5hz5o-tech-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
        }

        .h5hz5o-tech-card {
            background: white;
            padding: 40px;
            border-radius: 24px;
            border: 1px solid rgba(0,0,0,0.05);
            transition: var(--h5hz5o-transition);
        }

        .h5hz5o-tech-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.05);
        }

        .h5hz5o-tech-icon {
            width: 48px;
            height: 48px;
            background: rgba(66, 133, 244, 0.1);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 24px;
        }

        .h5hz5o-tech-name {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .h5hz5o-tech-desc {
            color: var(--h5hz5o-text-light);
            font-size: 15px;
            margin-bottom: 20px;
        }

        .h5hz5o-tech-metric {
            display: inline-block;
            padding: 4px 12px;
            background: #e8f0fe;
            color: var(--h5hz5o-primary);
            border-radius: 6px;
            font-size: 13px;
            font-weight: 600;
        }

        /* 安全防护区块 - 图文并茂 */
        .h5hz5o-shield-layout {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 64px;
        }

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

        .h5hz5o-shield-image img {
            width: 100%;
            border-radius: 32px;
            box-shadow: 0 40px 80px rgba(0,0,0,0.12);
        }

        .h5hz5o-shield-info {
            flex: 1.2;
            min-width: 300px;
        }

        .h5hz5o-shield-item {
            margin-bottom: 32px;
            display: flex;
            gap: 20px;
        }

        .h5hz5o-shield-num {
            font-size: 32px;
            font-weight: 800;
            color: rgba(66, 133, 244, 0.2);
            line-height: 1;
        }

        .h5hz5o-shield-text h3 {
            font-size: 18px;
            margin-bottom: 8px;
            color: var(--h5hz5o-text);
        }

        .h5hz5o-shield-text p {
            color: var(--h5hz5o-text-light);
        }

        /* 移动端下载区块 */
        .h5hz5o-mobile-section {
            background: #1a1b1e;
            color: white;
            border-radius: 48px;
            margin: 48px 24px;
            overflow: hidden;
            padding: 80px 0;
        }

        .h5hz5o-mobile-flex {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-around;
            gap: 48px;
        }

        .h5hz5o-mobile-content {
            flex: 1;
            min-width: 300px;
            max-width: 500px;
        }

        .h5hz5o-mobile-image {
            flex: 1;
            min-width: 300px;
            max-width: 400px;
            text-align: center;
        }

        .h5hz5o-mobile-image img {
            max-width: 100%;
            height: auto;
            filter: drop-shadow(0 20px 40px rgba(0,0,0,0.5));
        }

        /* FAQ */
        .h5hz5o-faq-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
            gap: 24px;
        }

        .h5hz5o-faq-item {
            padding: 32px;
            background: white;
            border-bottom: 2px solid #f1f3f4;
        }

        .h5hz5o-faq-q {
            font-weight: 700;
            font-size: 18px;
            margin-bottom: 12px;
            color: var(--h5hz5o-text);
        }

        /* 页脚 */
        .h5hz5o-footer {
            padding: 80px 0 40px;
            background: #f8f9fa;
            border-top: 1px solid #eee;
        }

        .h5hz5o-footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 48px;
            margin-bottom: 64px;
        }

        .h5hz5o-footer-brand {
            font-size: 20px;
            font-weight: 800;
            color: var(--h5hz5o-text);
            margin-bottom: 20px;
        }

        .h5hz5o-footer-links h4 {
            margin-bottom: 24px;
            font-size: 14px;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--h5hz5o-text-light);
        }

        .h5hz5o-footer-links ul {
            list-style: none;
        }

        .h5hz5o-footer-links li {
            margin-bottom: 12px;
        }

        .h5hz5o-footer-links a {
            text-decoration: none;
            color: var(--h5hz5o-text-light);
            font-size: 14px;
            transition: var(--h5hz5o-transition);
        }

        .h5hz5o-footer-links a:hover {
            color: var(--h5hz5o-primary);
        }

        .h5hz5o-copyright {
            padding-top: 40px;
            border-top: 1px solid #e0e0e0;
            text-align: center;
            font-size: 13px;
            color: var(--h5hz5o-text-light);
        }

        /* 响应式适配 */
        @media (max-width: 992px) {
            .h5hz5o-hero-grid {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .h5hz5o-hero-content {
                display: flex;
                flex-direction: column;
                align-items: center;
            }
            .h5hz5o-hero-subtitle {
                margin-left: auto;
                margin-right: auto;
            }
            .h5hz5o-btn-group {
                justify-content: center;
            }
            .h5hz5o-shield-layout {
                flex-direction: column;
            }
        }

        @media (max-width: 768px) {
            .h5hz5o-nav-menu {
                padding: 10px 0;
            }
            .h5hz5o-section {
                padding: 64px 0;
            }
            .h5hz5o-faq-grid {
                grid-template-columns: 1fr;
            }
            .h5hz5o-mobile-section {
                margin: 24px 16px;
                padding: 48px 24px;
            }
        }