: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;
        }

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

        body {
            font-family: "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
            color: var(--h5hz5o-text);
            line-height: 1.8;
            background-color: var(--h5hz5o-bg);
            overflow-x: hidden;
            word-break: keep-all;
        }

        /* 导航栏设计 */
        .h5hz5o-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
        }

        .h5hz5o-nav-container {
            max-width: var(--h5hz5o-container-width);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
        }

        .h5hz5o-logo {
            flex: 0 0 auto;
            display: flex;
            align-items: center;
            min-width: 0;
        }

        .h5hz5o-logo img {
            height: 36px;
            width: auto;
        }

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

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

        .h5hz5o-nav-link {
            text-decoration: none;
            color: var(--h5hz5o-text-light);
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            border-radius: 20px;
            transition: var(--h5hz5o-transition);
            display: block;
            white-space: nowrap;
        }

        .h5hz5o-nav-link:hover {
            color: var(--h5hz5o-primary);
            background: rgba(66, 133, 244, 0.08);
        }

        .h5hz5o-nav-link.h5hz5o-active {
            color: var(--h5hz5o-primary);
            background: rgba(66, 133, 244, 0.12);
        }

        /* Hero 区块 - 独特非对称布局 */
        .h5hz5o-hero {
            padding-top: 120px;
            padding-bottom: 80px;
            position: relative;
            background: linear-gradient(135deg, #f1f4f9 0%, #ffffff 100%);
            overflow: hidden;
        }

        .h5hz5o-hero-wrapper {
            max-width: var(--h5hz5o-container-width);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 48px;
        }

        .h5hz5o-hero-content {
            flex: 1 1 500px;
            min-width: 0;
            word-break: break-word;
        }

        .h5hz5o-hero-title {
            font-size: clamp(2.5rem, 4vw + 1rem, 4rem);
            line-height: 1.1;
            font-weight: 800;
            margin-bottom: 24px;
            color: var(--h5hz5o-text);
            letter-spacing: -1px;
        }

        .h5hz5o-hero-subtitle {
            font-size: clamp(1.1rem, 1.5vw + 0.5rem, 1.4rem);
            color: var(--h5hz5o-text-light);
            margin-bottom: 40px;
            max-width: 600px;
        }

        .h5hz5o-hero-visual {
            flex: 1 1 500px;
            min-width: 0;
            position: relative;
        }

        .h5hz5o-hero-image {
            width: 100%;
            height: auto;
            border-radius: 24px;
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
            transform: perspective(1000px) rotateY(-5deg);
            transition: var(--h5hz5o-transition);
        }

        .h5hz5o-hero-image:hover {
            transform: perspective(1000px) rotateY(0deg);
        }

        /* 技术模块 - 网格布局 */
        .h5hz5o-section {
            padding: 96px 24px;
            max-width: var(--h5hz5o-container-width);
            margin: 0 auto;
        }

        .h5hz5o-grid-header {
            text-align: center;
            margin-bottom: 64px;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
        }

        .h5hz5o-section-tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(52, 168, 83, 0.1);
            color: var(--h5hz5o-success);
            border-radius: 30px;
            font-weight: 600;
            font-size: 14px;
            margin-bottom: 16px;
        }

        .h5hz5o-tech-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
            gap: 32px;
        }

        .h5hz5o-tech-card {
            background: #fff;
            padding: 40px;
            border-radius: 24px;
            border: 1px solid #eee;
            transition: var(--h5hz5o-transition);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

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

        .h5hz5o-tech-title {
            font-size: 24px;
            margin-bottom: 16px;
            color: var(--h5hz5o-text);
        }

        .h5hz5o-tech-desc {
            color: var(--h5hz5o-text-light);
            margin-bottom: 24px;
            flex-grow: 1;
        }

        .h5hz5o-tech-metric {
            padding-top: 24px;
            border-top: 1px solid #f0f0f0;
            font-weight: 700;
            color: var(--h5hz5o-primary);
            font-size: 15px;
        }

        /* 图文交替区块 */
        .h5hz5o-feature-block {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 64px;
            margin-bottom: 96px;
        }

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

        .h5hz5o-feature-text {
            flex: 1 1 400px;
            min-width: 0;
        }

        .h5hz5o-feature-image-box {
            flex: 1 1 500px;
            min-width: 0;
        }

        .h5hz5o-feature-image-box img {
            width: 100%;
            border-radius: 20px;
            object-fit: cover;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
        }

        /* 安全防护区块 */
        .h5hz5o-shield-section {
            background: #202124;
            color: #fff;
            border-radius: 40px;
            padding: 80px 48px;
            margin: 64px 24px;
        }

        .h5hz5o-shield-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 40px;
            margin-top: 48px;
        }

        .h5hz5o-shield-item h3 {
            color: var(--h5hz5o-primary);
            margin-bottom: 12px;
            font-size: 22px;
        }

        .h5hz5o-shield-item p {
            color: #9aa0a6;
            font-size: 15px;
        }

        .h5hz5o-shield-meta {
            display: block;
            margin-top: 12px;
            font-size: 13px;
            color: var(--h5hz5o-success);
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        /* FAQ 区块 */
        .h5hz5o-faq-wrapper {
            max-width: 900px;
            margin: 0 auto;
        }

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

        .h5hz5o-faq-question {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 12px;
            color: var(--h5hz5o-text);
            display: flex;
            align-items: flex-start;
        }

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

        .h5hz5o-faq-answer {
            color: var(--h5hz5o-text-light);
            padding-left: 28px;
        }

        /* 页脚 */
        .h5hz5o-footer {
            background: var(--h5hz5o-section-gray);
            padding: 80px 24px 40px;
            margin-top: 96px;
        }

        .h5hz5o-footer-inner {
            max-width: var(--h5hz5o-container-width);
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 48px;
        }

        .h5hz5o-footer-brand {
            flex: 1 1 300px;
            min-width: 0;
        }

        .h5hz5o-footer-name {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--h5hz5o-text);
        }

        .h5hz5o-footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 64px;
        }

        .h5hz5o-footer-column h4 {
            margin-bottom: 20px;
            font-size: 16px;
            color: var(--h5hz5o-text);
        }

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

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

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

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

        .h5hz5o-copyright {
            margin-top: 64px;
            padding-top: 32px;
            border-top: 1px solid #e0e0e0;
            text-align: center;
            font-size: 13px;
            color: #9aa0a6;
        }

        /* 响应式适配 */
        @media (max-width: 1024px) {
            .h5hz5o-nav-menu {
                justify-content: center;
                width: 100%;
                margin-top: 12px;
                order: 3;
            }
            .h5hz5o-hero-wrapper {
                text-align: center;
                justify-content: center;
            }
            .h5hz5o-hero-subtitle {
                margin-left: auto;
                margin-right: auto;
            }
            .h5hz5o-hero-image {
                transform: none;
            }
        }

        @media (max-width: 768px) {
            .h5hz5o-tech-grid {
                grid-template-columns: 1fr;
            }
            .h5hz5o-feature-block, .h5hz5o-feature-block:nth-child(even) {
                flex-direction: column;
            }
            .h5hz5o-shield-section {
                padding: 40px 24px;
                margin: 32px 16px;
            }
            .h5hz5o-nav-link {
                padding: 6px 10px;
                font-size: 13px;
            }
        }