:root {
            --primary: #07C160;
            --primary-dark: #06AD56;
            --secondary: #576B95;
            --light: #F5F7FA;
            --dark: #1A1A1A;
            --gray: #666666;
            --light-gray: #E5E5E5;
            --white: #FFFFFF;
            --transition: all 0.3s ease;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --radius: 12px;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            line-height: 1.6;
            color: var(--dark);
            background-color: var(--white);
            overflow-x: hidden;
        }
        
        a {
            text-decoration: none;
            color: inherit;
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* 头部导航 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background-color: rgba(255, 255, 255, 0.95);
            box-shadow: var(--shadow);
            z-index: 1000;
            padding: 15px 0;
            transition: var(--transition);
        }
        
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            display: flex;
            align-items: center;
            font-size: 24px;
            font-weight: 700;
        }
        
        .logo i {
            color: var(--primary);
            margin-right: 10px;
        }
        
        .nav-links {
            display: flex;
            list-style: none;
        }
        
        .nav-links li {
            margin-left: 30px;
        }
        
        .nav-links a {
            position: relative;
            font-weight: 500;
            padding: 5px 0;
        }
        
        .nav-links a:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary);
            transition: var(--transition);
        }
        
        .nav-links a:hover:after {
            width: 100%;
        }
        
        .mobile-toggle {
            display: none;
            font-size: 24px;
            cursor: pointer;
        }
        
        /* 英雄区域 */
        .hero {
            padding: 160px 0 100px;
            background: linear-gradient(135deg, rgba(7, 193, 96, 0.08) 0%, rgba(255, 255, 255, 1) 100%);
            position: relative;
            overflow: hidden;
        }
        
        .hero-content {
            max-width: 600px;
            z-index: 10;
            position: relative;
        }
        
        .hero h1 {
            font-size: 3.5rem;
            line-height: 1.2;
            margin-bottom: 20px;
            color: var(--dark);
            letter-spacing: 3px;
        }
        
        .hero h1 span {
            color: var(--primary);
        }
        
        .hero p {
            font-size: 1.25rem;
            color: var(--gray);
            margin-bottom: 40px;
            max-width: 500px;
        }
        
        .hero-btns {
            display: flex;
            gap: 15px;
        }
        
        .btn {
            display: inline-block;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            transition: var(--transition);
            text-align: center;
        }
        
        .btn-primary {
            background-color: var(--primary);
            color: var(--white);
            box-shadow: 0 4px 14px rgba(7, 193, 96, 0.4);
        }
        
        .btn-primary:hover {
            background-color: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 6px 18px rgba(7, 193, 96, 0.5);
        }
        
        .btn-outline {
            border: 2px solid var(--primary);
            color: var(--primary);
        }
        
        .btn-outline:hover {
            background-color: var(--primary);
            color: var(--white);
        }
        
        .hero-image {
            position: absolute;
            right: -50px;
            top: 50%;
            transform: translateY(-50%);
            max-width: 55%;
            z-index: 5;
        }
        
        /* 特性部分 */
        .features {
            padding: 100px 0;
            background-color: var(--light);
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 60px;
        }
        
        .section-title h2 {
            font-size: 2.5rem;
            margin-bottom: 15px;
        }
        
        .section-title p {
            color: var(--gray);
            max-width: 700px;
            margin: 0 auto;
        }
        
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .feature-card {
            background: var(--white);
            border-radius: var(--radius);
            padding: 40px 30px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            text-align: center;
        }
        
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        }
        
        .feature-icon {
            width: 80px;
            height: 80px;
            background: rgba(7, 193, 96, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 25px;
        }
        
        .feature-icon i {
            font-size: 36px;
            color: var(--primary);
        }
        
        .feature-card h3 {
            font-size: 1.5rem;
            margin-bottom: 15px;
        }
        
        /* 开发流程 */
        .workflow {
            padding: 100px 0;
        }
        
        .steps {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 30px;
            margin-top: 50px;
        }
        
        .step {
            flex: 0 0 calc(25% - 30px);
            text-align: center;
            position: relative;
            padding: 0 15px;
        }
        
        .step:not(:last-child):after {
            content: '';
            position: absolute;
            top: 40px;
            right: -30px;
            width: 30px;
            height: 2px;
            background-color: var(--light-gray);
        }
        
        .step-number {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            font-weight: 700;
            margin: 0 auto 25px;
            position: relative;
        }
        
        .step h3 {
            margin-bottom: 15px;
            font-size: 1.25rem;
        }
        
        /* 使用场景 */
        .use-cases {
            padding: 100px 0;
            background-color: var(--light);
        }
        
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .case-card {
            background: var(--white);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        
        .case-img {
            height: 200px;
            background: linear-gradient(45deg, #1a2b6d, #06AD56);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 3rem;
        }
        
        .case-content {
            padding: 30px;
        }
        
        .case-content h3 {
            margin-bottom: 15px;
            font-size: 1.5rem;
        }
        
        /* 数据展示 */
        .stats {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            color: var(--white);
            text-align: center;
        }
        
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
        }
        
        .stat-item h3 {
            font-size: 3rem;
            margin-bottom: 10px;
            font-weight: 700;
        }
        
        .stat-item p {
            font-size: 1.1rem;
            opacity: 0.9;
        }
        
        /* 页脚 */
        footer {
            background-color: var(--dark);
            color: var(--light-gray);
            padding: 70px 0 30px;
        }
        
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 50px;
        }
        
        .footer-col h3 {
            color: var(--white);
            font-size: 1.5rem;
            margin-bottom: 25px;
            position: relative;
        }
        
        .footer-col h3:after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 0;
            width: 50px;
            height: 2px;
            background-color: var(--primary);
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 12px;
        }
        
        .footer-links a {
            color: var(--light-gray);
            transition: var(--transition);
        }
        
        .footer-links a:hover {
            color: var(--primary);
            padding-left: 5px;
        }
        
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            color: var(--gray);
        }
        
        .beian {
            display: block;
            margin-top: 10px;
            color: var(--gray);
            font-size: 0.9rem;
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .hero {
                padding: 140px 0 80px;
            }
            
            .hero h1 {
                font-size: 2.8rem;
            }
            
            .hero-image {
                opacity: 0.3;
                right: -100px;
            }
            
            .step {
                flex: 0 0 calc(50% - 30px);
                margin-bottom: 40px;
            }
            
            .step:not(:last-child):after {
                display: none;
            }
        }
        
        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            
            .nav-links {
                position: fixed;
                top: 80px;
                right: -100%;
                flex-direction: column;
                background: var(--white);
                width: 100%;
                height: calc(100vh - 80px);
                padding: 50px 20px;
                transition: var(--transition);
                box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
            }
            
            .nav-links.active {
                right: 0;
            }
            
            .nav-links li {
                margin: 0 0 25px 0;
            }
            
            .hero {
                text-align: center;
            }
            
            .hero-content {
                margin: 0 auto;
            }
            
            .hero p {
                margin: 0 auto 40px;
            }
            
            .hero-btns {
                justify-content: center;
            }
            
            .hero-image {
                display: none;
            }
            
            .step {
                flex: 0 0 100%;
            }
        }
        
        @media (max-width: 576px) {
            .hero h1 {
                font-size: 2.2rem;
            }
            
            .hero-btns {
                flex-direction: column;
            }
            
            .section-title h2 {
                font-size: 2rem;
            }
        }