/* 基础变量与复位 */
        :root {
            --hhx9et-primary: #1880C1;
            --hhx9et-secondary: #0056b3;
            --hhx9et-dark: #1e293b;
            --hhx9et-light: #f8fafc;
            --hhx9et-accent: #38bdf8;
            --hhx9et-text: #334155;
            --hhx9et-spacing-base: 8px;
            --hhx9et-radius: 16px;
        }

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

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

        /* 布局容器 */
        .hhx9et-container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* 导航栏 */
        .hhx9et-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            z-index: 1000;
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            box-shadow: 0 4px 20px rgba(0,0,0,0.03);
        }

        .hhx9et-nav-wrapper {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            height: 80px;
            min-width: 0;
        }

        .hhx9et-logo {
            flex: 0 0 auto;
            min-width: 0;
        }

        .hhx9et-logo img {
            height: 40px;
            display: block;
        }

        .hhx9et-nav-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 20px;
            min-width: 0;
        }

        .hhx9et-nav-link {
            text-decoration: none;
            color: var(--hhx9et-dark);
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.3s ease;
            position: relative;
            padding: 5px 0;
        }

        .hhx9et-nav-link:hover, .hhx9et-nav-link.hhx9et-active {
            color: var(--hhx9et-primary);
        }

        .hhx9et-nav-link.hhx9et-active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--hhx9et-primary);
        }

        /* Hero 区域 - 独特非对称布局 */
        .hhx9et-hero {
            padding: 160px 0 96px;
            background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
            position: relative;
            overflow: hidden;
        }

        .hhx9et-hero::before {
            content: '';
            position: absolute;
            top: -10%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(56, 189, 248, 0.1) 0%, transparent 70%);
            border-radius: 50%;
        }

        .hhx9et-hero-content {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            min-width: 0;
        }

        .hhx9et-hero-text {
            flex: 1;
            min-width: 300px;
            padding-right: 48px;
            word-break: break-word;
        }

        .hhx9et-hero-title {
            font-size: clamp(2rem, 4vw + 1rem, 3.5rem);
            line-height: 1.2;
            color: var(--hhx9et-dark);
            margin-bottom: 24px;
            font-weight: 800;
        }

        .hhx9et-hero-subtitle {
            font-size: clamp(1rem, 1.2vw + 0.5rem, 1.25rem);
            color: var(--hhx9et-text);
            margin-bottom: 32px;
            opacity: 0.9;
        }

        .hhx9et-hero-badge {
            display: inline-block;
            padding: 8px 16px;
            background: var(--hhx9et-primary);
            color: white;
            border-radius: 30px;
            font-size: 0.85rem;
            margin-bottom: 16px;
            font-weight: 600;
        }

        /* 功能卡片区 - Grid布局 */
        .hhx9et-features {
            padding: 96px 0;
        }

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

        .hhx9et-card {
            background: #ffffff;
            border: 1px solid #f1f5f9;
            padding: 40px;
            border-radius: var(--hhx9et-radius);
            box-shadow: 0 10px 30px rgba(0,0,0,0.02);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            min-width: 0;
            word-break: break-word;
        }

        .hhx9et-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.06);
            border-color: var(--hhx9et-accent);
        }

        .hhx9et-card-icon {
            width: 56px;
            height: 56px;
            background: #e0f2fe;
            border-radius: 12px;
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--hhx9et-primary);
            font-weight: bold;
            font-size: 1.5rem;
        }

        .hhx9et-card h3 {
            margin-bottom: 16px;
            font-size: 1.4rem;
            color: var(--hhx9et-dark);
        }

        /* 行业场景区 - 独特横向错位设计 */
        .hhx9et-scenarios {
            padding: 96px 0;
            background-color: var(--hhx9et-light);
        }

        .hhx9et-scenario-item {
            display: flex;
            flex-wrap: wrap;
            margin-bottom: 64px;
            align-items: center;
            min-width: 0;
        }

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

        .hhx9et-scenario-visual {
            flex: 0 0 45%;
            min-width: 300px;
            height: 300px;
            background: var(--hhx9et-dark);
            border-radius: var(--hhx9et-radius);
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-family: monospace;
            padding: 20px;
            box-shadow: 20px 20px 0px var(--hhx9et-accent);
        }

        .hhx9et-scenario-content {
            flex: 1;
            padding: 48px;
            min-width: 300px;
            word-break: break-word;
        }

        .hhx9et-tag {
            font-size: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--hhx9et-primary);
            font-weight: 700;
            margin-bottom: 12px;
            display: block;
        }

        /* 步骤列表样式 */
        .hhx9et-steps {
            list-style: none;
            margin-top: 16px;
        }

        .hhx9et-steps li {
            margin-bottom: 8px;
            padding-left: 24px;
            position: relative;
        }

        .hhx9et-steps li::before {
            content: "→";
            position: absolute;
            left: 0;
            color: var(--hhx9et-primary);
        }

        /* 设置指南区块 */
        .hhx9et-guide-section {
            padding: 96px 0;
        }

        .hhx9et-section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 64px;
        }

        .hhx9et-section-header h2 {
            font-size: 2.5rem;
            margin-bottom: 20px;
            color: var(--hhx9et-dark);
        }

        /* 页脚 */
        .hhx9et-footer {
            background: var(--hhx9et-dark);
            color: #94a3b8;
            padding: 80px 0 40px;
        }

        .hhx9et-footer-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 48px;
            margin-bottom: 64px;
            min-width: 0;
        }

        .hhx9et-footer-brand {
            flex: 0 0 300px;
            min-width: 0;
        }

        .hhx9et-footer-brand h4 {
            color: white;
            font-size: 1.5rem;
            margin-bottom: 16px;
        }

        .hhx9et-footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            min-width: 0;
        }

        .hhx9et-link-group h5 {
            color: white;
            margin-bottom: 20px;
            font-size: 1rem;
        }

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

        .hhx9et-link-group ul li {
            margin-bottom: 10px;
        }

        .hhx9et-link-group a {
            color: #94a3b8;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .hhx9et-link-group a:hover {
            color: white;
        }

        .hhx9et-copyright {
            border-top: 1px solid rgba(255,255,255,0.05);
            padding-top: 40px;
            text-align: center;
            font-size: 0.85rem;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .hhx9et-nav-menu {
                display: none; /* 简化移动端处理 */
            }
            .hhx9et-hero {
                padding: 120px 0 64px;
                text-align: center;
            }
            .hhx9et-hero-text {
                padding-right: 0;
            }
            .hhx9et-scenario-visual {
                flex: 0 0 100%;
                box-shadow: 10px 10px 0px var(--hhx9et-accent);
            }
            .hhx9et-scenario-content {
                padding: 32px 0;
            }
        }