/* CSS变量定义 */
        :root {
            --primary: #1e3a8a;
            --primary-dark: #0f2a6d;
            --primary-light: #3b82f6;
            --secondary: #10b981;
            --accent: #f59e0b;
            --text: #1f2937;
            --text-light: #6b7280;
            --bg-light: #f8fafc;
            --bg-white: #ffffff;
            --border: #e5e7eb;
            --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
            --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
            --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
            --radius: 8px;
            --radius-lg: 12px;
            --transition: all 0.3s ease;
        }
        
        /* 基础样式重置 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        html {
            scroll-behavior: smooth;
        }
        
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
            line-height: 1.6;
            color: var(--text);
            background: var(--bg-white);
            overflow-x: hidden;
        }
        
        h1, h2, h3, h4, h5, h6 {
            font-weight: 600;
            line-height: 1.3;
        }
        
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        
        img {
            max-width: 100%;
            height: auto;
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* SVG图标样式 */
        .icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 1em;
            height: 1em;
        }
        
        .icon-sm {
            width: 1em;
            height: 1em;
        }
        
        .icon-md {
            width: 1.5em;
            height: 1.5em;
        }
        
        .icon-lg {
            width: 2em;
            height: 2em;
        }
        
        .icon-xl {
            width: 3em;
            height: 3em;
        }
        
        /* 按钮样式 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: var(--radius);
            font-weight: 500;
            font-size: 16px;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            gap: 8px;
        }
        
        .btn-primary {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            color: white;
        }
        
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }
        
        .btn-secondary {
            background: var(--secondary);
            color: white;
        }
        
        .btn-outline {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
        }
        
        .btn-outline:hover {
            background: var(--primary);
            color: white;
        }
        
        /* 导航栏 */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            z-index: 1000;
            padding: 20px 0;
            transition: var(--transition);
        }
        
        .navbar.scrolled {
            padding: 15px 0;
            box-shadow: var(--shadow);
        }
        
        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
        }
        
        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: bold;
        }
        
        .nav-menu {
            display: flex;
            gap: 40px;
            align-items: center;
        }
        
        .nav-link {
            font-weight: 500;
            color: var(--text);
            position: relative;
            padding: 8px 0;
        }
        
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: width 0.3s ease;
        }
        
        .nav-link:hover::after,
        .nav-link.active::after {
            width: 100%;
        }
        
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            width: 30px;
            height: 30px;
            cursor: pointer;
            color: var(--text);
            flex-direction: column;
            justify-content: space-between;
        }
        
        .mobile-menu-btn span {
            width: 100%;
            height: 2px;
            background: currentColor;
            transition: var(--transition);
        }
        
        .mobile-menu-btn.active span:nth-child(1) {
            transform: rotate(45deg) translate(6px, 6px);
        }
        
        .mobile-menu-btn.active span:nth-child(2) {
            opacity: 0;
        }
        
        .mobile-menu-btn.active span:nth-child(3) {
            transform: rotate(-45deg) translate(7px, -7px);
        }
        
        /* Hero区域 */
        .hero {
            padding: 180px 0 100px;
            background: linear-gradient(135deg, #f0f7ff 0%, #e6f0ff 100%);
            position: relative;
            overflow: hidden;
        }
        
        .hero-bg {
            position: absolute;
            top: 0;
            right: 0;
            bottom: 0;
            width: 50%;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            clip-path: polygon(30% 0, 100% 0, 100% 100%, 0% 100%);
            opacity: 0.1;
        }
        
        .hero-content {
            position: relative;
            z-index: 1;
            max-width: 600px;
        }
        
        .hero-title {
            font-size: 3.5rem;
            margin-bottom: 20px;
            color: var(--primary);
        }
        
        .hero-subtitle {
            font-size: 1.25rem;
            color: var(--text-light);
            margin-bottom: 30px;
            line-height: 1.7;
        }
        
        .badge-group {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 30px;
        }
        
        .badge {
            padding: 8px 16px;
            background: var(--bg-white);
            border-radius: 20px;
            font-size: 14px;
            font-weight: 500;
            box-shadow: var(--shadow-sm);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        
        .badge svg {
            color: var(--secondary);
            width: 16px;
            height: 16px;
        }
        
        /* 数据展示 */
        .stats {
            display: flex;
            gap: 40px;
            margin-top: 40px;
            padding-top: 40px;
            border-top: 1px solid var(--border);
        }
        
        .stat-item {
            text-align: center;
        }
        
        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        
        .stat-label {
            font-size: 14px;
            color: var(--text-light);
        }
        
        /* 特性卡片 */
        .section {
            padding: 100px 0;
        }
        
        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 60px;
        }
        
        .section-title {
            font-size: 2.5rem;
            margin-bottom: 16px;
            color: var(--primary);
        }
        
        .section-subtitle {
            font-size: 1.125rem;
            color: var(--text-light);
        }
        
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .feature-card {
            background: var(--bg-white);
            padding: 40px 30px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid transparent;
        }
        
        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }
        
        .feature-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 24px;
        }
        
        .feature-icon svg {
            width: 32px;
            height: 32px;
            color: white;
        }
        
        .feature-title {
            font-size: 1.25rem;
            margin-bottom: 12px;
            color: var(--text);
        }
        
        /* 支付方式轮播 */
        .payment-slider {
            margin: 40px 0;
            position: relative;
        }
        
        .slider-container {
            overflow: hidden;
            position: relative;
        }
        
        .slider-track {
            display: flex;
            transition: transform 0.5s ease;
            gap: 20px;
        }
        
        .slider-item {
            flex: 0 0 calc(25% - 15px);
            min-width: 250px;
        }
        
        .slider-btn {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: white;
            border: 1px solid var(--border);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow);
            z-index: 10;
            transition: var(--transition);
        }
        
        .slider-btn:hover {
            background: var(--primary);
            border-color: var(--primary);
        }
        
        .slider-btn:hover svg {
            color: white;
        }
        
        .slider-btn.prev {
            left: -20px;
        }
        
        .slider-btn.next {
            right: -20px;
        }
        
        .payment-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 30px;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: var(--transition);
            height: 100%;
        }
        
        .payment-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary-light);
        }
        
        .payment-icon {
            margin-bottom: 20px;
            height: 80px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .payment-icon svg {
            width: 64px;
            height: 64px;
        }
        
        /* 定价卡片 */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }
        
        .pricing-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow);
            border: 2px solid var(--border);
            transition: var(--transition);
            position: relative;
        }
        
        .pricing-card.featured {
            border-color: var(--primary);
            transform: scale(1.05);
        }
        
        .pricing-card.featured::before {
            content: '推荐';
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--primary);
            color: white;
            padding: 6px 20px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 500;
        }
        
        .pricing-header {
            text-align: center;
            margin-bottom: 30px;
        }
        
        .pricing-title {
            font-size: 1.5rem;
            margin-bottom: 12px;
        }
        
        .pricing-price {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary);
        }
        
        .pricing-price span {
            font-size: 1rem;
            color: var(--text-light);
        }
        
        /* FAQ手风琴 */
        .faq-container {
            max-width: 800px;
            margin: 0 auto;
        }
        
        .faq-item {
            margin-bottom: 16px;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
        }
        
        .faq-question {
            padding: 20px;
            background: var(--bg-white);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 500;
        }
        
        .faq-question svg {
            transition: transform 0.3s ease;
            width: 20px;
            height: 20px;
        }
        
        .faq-question.active svg {
            transform: rotate(180deg);
        }
        
        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        
        .faq-answer.active {
            padding: 20px;
            max-height: 500px;
        }
        
        /* 联系表单 */
        .contact-form {
            max-width: 600px;
            margin: 0 auto;
        }
        
        .form-group {
            margin-bottom: 24px;
        }
        
        .form-control {
            width: 100%;
            padding: 14px 20px;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            font-size: 16px;
            transition: var(--transition);
        }
        
        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1);
        }
        
        /* 页脚 */
        .footer {
            background: var(--primary-dark);
            color: white;
            padding: 80px 0 30px;
        }
        
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 60px;
        }
        
        .footer-col h4 {
            color: white;
            margin-bottom: 24px;
            font-size: 1.125rem;
        }
        
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        
        .footer-links a {
            color: rgba(255, 255, 255, 0.8);
            transition: var(--transition);
        }
        
        .footer-links a:hover {
            color: white;
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .nav-menu {
                display: none;
            }
            
            .mobile-menu-btn {
                display: flex;
            }
            
            .hero-title {
                font-size: 2.5rem;
            }
            
            .pricing-card.featured {
                transform: none;
            }
            
            .slider-item {
                flex: 0 0 calc(33.333% - 13.333px);
            }
        }
        
        @media (max-width: 768px) {
            .hero {
                padding: 140px 0 60px;
                text-align: center;
            }
            
            .section {
                padding: 60px 0;
            }
            
            .section-title {
                font-size: 2rem;
            }
            
            .stats {
                flex-direction: column;
                gap: 30px;
            }
            
            .slider-item {
                flex: 0 0 calc(50% - 10px);
            }
            
            .slider-btn {
                display: none;
            }
        }
        
        @media (max-width: 480px) {
            .slider-item {
                flex: 0 0 100%;
            }
        }
        
        /* 动画效果 */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .animate {
            animation: fadeInUp 0.8s ease forwards;
        }
/* 添加通用图标样式 */
.icon {
    display: inline-block;
    vertical-align: middle;
    fill: currentColor;
    stroke: none;
}

.icon-sm {
    width: 1em;
    height: 1em;
}

.icon-md {
    width: 1.5em;
    height: 1.5em;
}

.icon-lg {
    width: 2em;
    height: 2em;
}

.icon-xl {
    width: 3em;
    height: 3em;
}

/* 确保SVG正确渲染 */
svg:not(:root) {
    overflow: hidden;
}

/* 特定图标颜色 */
.icon-success {
    color: var(--secondary);
}

.icon-primary {
    color: var(--primary);
}

.icon-warning {
    color: var(--accent);
}
#contact{display:none}