:root {
            --hhx9et-primary: #1880c5;
            --hhx9et-primary-dark: #0d4a75;
            --hhx9et-accent: #00bcd4;
            --hhx9et-bg-light: #f8fafc;
            --hhx9et-text-main: #1e293b;
            --hhx9et-text-muted: #64748b;
            --hhx9et-white: #ffffff;
            --hhx9et-shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.1);
            --hhx9et-radius: 16px;
            --hhx9et-font-step: clamp(1rem, 1.2vw + 0.5rem, 1.5rem);
        }

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

        body {
            font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
            color: var(--hhx9et-text-main);
            background-color: var(--hhx9et-bg-light);
            line-height: 1.7;
            overflow-x: hidden;
            word-break: keep-all;
        }

        /* 导航栏设计 */
        .hhx9et-header {
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
        }

        .hhx9et-nav-container {
            max-width: 1300px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 80px;
            flex-wrap: wrap;
        }

        .hhx9et-logo {
            flex-shrink: 0;
            display: flex;
            align-items: center;
            min-width: 0;
        }

        .hhx9et-logo img {
            height: 42px;
            width: auto;
            object-fit: contain;
        }

        .hhx9et-nav-menu {
            display: flex;
            list-style: none;
            gap: 8px;
            flex-wrap: wrap;
            min-width: 0;
        }

        .hhx9et-nav-link {
            text-decoration: none;
            color: var(--hhx9et-text-main);
            font-weight: 500;
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 0.95rem;
            transition: all 0.2s ease;
        }

        .hhx9et-nav-link:hover {
            background: rgba(24, 128, 197, 0.08);
            color: var(--hhx9et-primary);
        }

        .hhx9et-nav-link.hhx9et-active {
            background: var(--hhx9et-primary);
            color: var(--hhx9et-white);
        }

        /* Hero 区设计 - 采用分层视觉 */
        .hhx9et-hero {
            padding-top: 160px;
            padding-bottom: 96px;
            background: radial-gradient(circle at top right, #e0f2fe, transparent),
                        radial-gradient(circle at bottom left, #f0fdf4, transparent);
            position: relative;
            overflow: hidden;
        }

        .hhx9et-hero-content {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 32px;
            text-align: center;
            position: relative;
            z-index: 2;
        }

        .hhx9et-hero-tag {
            display: inline-block;
            background: var(--hhx9et-primary-dark);
            color: white;
            padding: 4px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            margin-bottom: 24px;
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .hhx9et-hero h1 {
            font-size: clamp(2rem, 4vw + 1rem, 4rem);
            line-height: 1.1;
            font-weight: 800;
            color: var(--hhx9et-primary-dark);
            margin-bottom: 24px;
            word-break: break-word;
        }

        .hhx9et-hero p {
            font-size: var(--hhx9et-font-step);
            color: var(--hhx9et-text-muted);
            max-width: 800px;
            margin: 0 auto 40px;
        }

        .hhx9et-hero-img-wrap {
            margin-top: 64px;
            border-radius: 24px;
            overflow: hidden;
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            border: 8px solid white;
        }

        .hhx9et-hero-img-wrap img {
            width: 100%;
            display: block;
            transition: transform 0.5s ease;
        }

        .hhx9et-hero-img-wrap:hover img {
            transform: scale(1.02);
        }

        /* 核心特性区 - 图文交错 */
        .hhx9et-section {
            padding: 96px 0;
            max-width: 1300px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .hhx9et-feature-row {
            display: flex;
            align-items: center;
            gap: 64px;
            margin-bottom: 120px;
            flex-wrap: wrap;
        }

        .hhx9et-feature-row:nth-child(even) {
            flex-direction: row-reverse;
        }

        .hhx9et-feature-text {
            flex: 1;
            min-width: 300px;
        }

        .hhx9et-feature-text h2 {
            font-size: 2.5rem;
            margin-bottom: 24px;
            color: var(--hhx9et-primary-dark);
        }

        .hhx9et-feature-text p {
            font-size: 1.1rem;
            color: var(--hhx9et-text-muted);
            margin-bottom: 32px;
        }

        .hhx9et-feature-visual {
            flex: 1.2;
            min-width: 300px;
            position: relative;
        }

        .hhx9et-feature-visual img {
            width: 100%;
            border-radius: var(--hhx9et-radius);
            box-shadow: var(--hhx9et-shadow);
        }

        /* 行业方案区 - 网格布局 */
        .hhx9et-industry-box {
            background: #ffffff;
            border-radius: 32px;
            padding: 64px;
            margin-top: 48px;
            border: 1px solid rgba(0,0,0,0.05);
        }

        .hhx9et-section-title {
            text-align: center;
            margin-bottom: 64px;
        }

        .hhx9et-industry-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
        }

        .hhx9et-industry-card {
            background: var(--hhx9et-bg-light);
            padding: 40px;
            border-radius: 24px;
            transition: all 0.3s ease;
            border: 1px solid transparent;
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        .hhx9et-industry-card:hover {
            background: white;
            border-color: var(--hhx9et-primary);
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.05);
        }

        .hhx9et-industry-card h3 {
            color: var(--hhx9et-primary);
            margin-bottom: 16px;
            font-size: 1.5rem;
        }

        .hhx9et-use-list {
            list-style: none;
            margin: 24px 0;
            flex-grow: 1;
        }

        .hhx9et-use-list li {
            position: relative;
            padding-left: 24px;
            margin-bottom: 12px;
            font-size: 0.95rem;
            color: var(--hhx9et-text-main);
        }

        .hhx9et-use-list li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--hhx9et-accent);
            font-weight: bold;
        }

        .hhx9et-config-note {
            background: rgba(24, 128, 197, 0.05);
            padding: 16px;
            border-radius: 12px;
            font-size: 0.85rem;
            border-left: 4px solid var(--hhx9et-primary);
        }

        /* 动态内容区 */
        .hhx9et-dynamic-section {
            background: var(--hhx9et-primary-dark);
            color: white;
            padding: 80px 24px;
            text-align: center;
        }

        .hhx9et-cta-btn {
            display: inline-block;
            background: var(--hhx9et-accent);
            color: white;
            padding: 18px 48px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 700;
            font-size: 1.2rem;
            transition: all 0.3s ease;
            margin-top: 32px;
            box-shadow: 0 10px 20px rgba(0, 188, 212, 0.3);
        }

        .hhx9et-cta-btn:hover {
            transform: scale(1.05);
            background: #00acc1;
        }

        /* 页脚 */
        .hhx9et-footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 80px 24px 40px;
        }

        .hhx9et-footer-content {
            max-width: 1300px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            gap: 48px;
            flex-wrap: wrap;
            border-bottom: 1px solid #1e293b;
            padding-bottom: 48px;
        }

        .hhx9et-footer-brand h2 {
            color: white;
            font-size: 1.8rem;
            margin-bottom: 16px;
        }

        .hhx9et-footer-links {
            display: flex;
            gap: 64px;
            flex-wrap: wrap;
        }

        .hhx9et-footer-group h4 {
            color: white;
            margin-bottom: 24px;
            text-transform: uppercase;
            font-size: 0.9rem;
            letter-spacing: 1px;
        }

        .hhx9et-footer-group ul {
            list-style: none;
        }

        .hhx9et-footer-group li {
            margin-bottom: 12px;
        }

        .hhx9et-footer-group a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s;
        }

        .hhx9et-footer-group a:hover {
            color: var(--hhx9et-accent);
        }

        .hhx9et-copyright {
            text-align: center;
            padding-top: 40px;
            font-size: 0.85rem;
        }

        /* 响应式适配 */
        @media (max-width: 768px) {
            .hhx9et-nav-container {
                height: auto;
                padding: 16px;
            }
            .hhx9et-nav-menu {
                display: none; /* 简化演示，手机端可做汉堡菜单 */
            }
            .hhx9et-hero {
                padding-top: 120px;
            }
            .hhx9et-feature-row {
                gap: 32px;
                margin-bottom: 64px;
            }
            .hhx9et-industry-box {
                padding: 32px;
            }
            .hhx9et-feature-text h2 {
                font-size: 1.8rem;
            }
        }