/* 基础样式重置 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        /* 全局样式 */
        :root {
            --primary-color: #2c6ecb;
            --secondary-color: #4080ff;
            --accent-color: #ff7d00;
            --text-color: #333;
            --light-text: #666;
            --bg-light: #f5f7fa;
            --white: #fff;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
        }

        body {
            color: var(--text-color);
            line-height: 1.6;
            background-color: var(--bg-light);
            overflow-x: hidden;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        h1, h2, h3, h4 {
            margin-bottom: 1rem;
            line-height: 1.3;
        }

        h1 {
            font-size: 2.5rem;
        }

        h2 {
            font-size: 2rem;
            text-align: center;
            margin: 2rem 0;
            color: var(--primary-color);
        }

        h3 {
            font-size: 1.5rem;
            color: var(--primary-color);
        }

        p {
            margin-bottom: 1rem;
        }

        img {
            max-width: 100%;
            height: auto;
        }

        /* 按钮样式 */
        .btn {
            display: inline-block;
            padding: 12px 24px;
            background-color: var(--primary-color);
            color: var(--white);
            border: none;
            border-radius: 4px;
            cursor: pointer;
            text-align: center;
            text-decoration: none;
            font-weight: 600;
            transition: var(--transition);
        }

        .btn:hover {
            background-color: var(--secondary-color);
            transform: translateY(-2px);
        }

        .primary-btn {
            background-color: var(--accent-color);
            font-size: 1.1rem;
            padding: 14px 32px;
        }

        .primary-btn:hover {
            background-color: #e57000;
        }

        /* 导航栏样式 */
        .navbar {
            background-color: var(--white);
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .navbar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }

        .logo {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary-color);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .logo i {
            color: var(--accent-color);
        }

        .nav-links {
            display: flex;
            gap: 25px;
        }

        .nav-links a {
            color: var(--text-color);
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .nav-links a:hover {
            color: var(--primary-color);
        }

        .nav-links a i {
            font-size: 0.9rem;
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            background: var(--primary-color);
            padding: 8px;
            border-radius: 4px;
        }

        .menu-toggle span {
            width: 25px;
            height: 3px;
            background-color: var(--white);
        }

        /* 英雄区域样式 */
        .hero {
            background: linear-gradient(135deg, #f5f7fa 0%, #e4eaf5 100%);
            padding: 6rem 0;
            text-align: center;
        }

        .hero h1 {
            font-size: 3rem;
            margin-bottom: 1.5rem;
            color: var(--primary-color);
        }

        .hero p {
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto 2rem;
            color: var(--light-text);
        }

        /* 什么是活码区域 */
        .what-is {
            padding: 4rem 0;
            background-color: var(--white);
        }

        .what-is .content {
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
            font-size: 1.1rem;
        }

        /* 活码功能区域 */
        .features {
            padding: 4rem 0;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
            margin-top: 2rem;
        }

        .feature-card {
            background-color: var(--white);
            border-radius: 8px;
            padding: 25px;
            box-shadow: var(--shadow);
            text-align: center;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        }

        .feature-card .feature-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 15px;
            color: white;
            font-size: 1.5rem;
        }

        .feature-card h3 {
            margin-bottom: 15px;
        }

        .feature-card img {
            margin-top: auto;
            border-radius: 4px;
            max-height: 200px;
            object-fit: cover;
            width: 100%;
        }

        /* 会员服务区域 - 手机端优化 */
        .pricing {
            padding: 4rem 0;
            background-color: var(--white);
        }

        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin-top: 2rem;
        }

        .pricing-card {
            background-color: var(--white);
            border-radius: 8px;
            padding: 30px;
            box-shadow: var(--shadow);
            text-align: center;
            position: relative;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .pricing-card:hover {
            transform: translateY(-5px);
        }

        .pricing-card.featured {
            border: 2px solid var(--primary-color);
            transform: scale(1.03);
        }

        .badge {
            position: absolute;
            top: -15px;
            left: 50%;
            transform: translateX(-50%);
            background-color: var(--accent-color);
            color: var(--white);
            padding: 5px 15px;
            border-radius: 20px;
            font-weight: 600;
            font-size: 0.9rem;
        }

        .price {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary-color);
            margin: 1rem 0;
        }

        .price span {
            font-size: 1rem;
            color: var(--light-text);
            font-weight: normal;
        }

        .features-list {
            list-style: none;
            margin: 2rem 0;
            text-align: left;
            flex-grow: 1;
        }

        .features-list li {
            margin-bottom: 10px;
            padding-left: 25px;
            position: relative;
        }

        .features-list li:before {
            content: '✓';
            color: var(--primary-color);
            font-weight: bold;
            position: absolute;
            left: 0;
        }

        .upgrade-btn {
            width: 100%;
            padding: 14px;
            font-size: 1rem;
            margin-top: auto;
        }

        /* 售后服务区域 */
        .support {
            padding: 4rem 0;
        }

        .support-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .support-item {
            background-color: var(--white);
            padding: 30px;
            border-radius: 8px;
            box-shadow: var(--shadow);
            text-align: center;
        }

        .support-item .icon {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 15px;
        }

        .contact-info {
            background-color: var(--primary-color);
            color: var(--white);
            padding: 30px;
            border-radius: 8px;
            text-align: center;
        }

        .contact-info h3 {
            color: var(--white);
        }

        .contact-info a {
            color: var(--white);
            text-decoration: underline;
        }

        /* 页脚样式 */
        footer {
            background-color: #333;
            color: var(--white);
            padding: 3rem 0 1.5rem;
        }

        .footer-content {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }

        .footer-logo {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px 30px;
            margin-bottom: 2rem;
        }

        .footer-links a {
            color: #ccc;
            text-decoration: none;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .footer-links a:hover {
            color: var(--white);
        }

        .copyright {
            font-size: 0.9rem;
            color: #aaa;
        }

        .copyright a {
            color: #aaa;
            text-decoration: none;
        }

        /* 支付弹窗样式 - 手机端居中优化 */
        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.5);
            z-index: 1000;
            justify-content: center;
            align-items: center;
            overflow-y: auto;
            padding: 20px;
        }

        .modal-content {
            background-color: var(--white);
            padding: 30px;
            border-radius: 8px;
            width: 100%;
            max-width: 400px;
            text-align: center;
            position: relative;
            margin: auto;
        }

        .close-btn {
            position: absolute;
            top: 15px;
            right: 15px;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--light-text);
            transition: var(--transition);
            width: 30px;
            height: 30px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .close-btn:hover {
            color: var(--text-color);
            background: #f5f5f5;
            border-radius: 50%;
        }

        .modal-price {
            font-size: 2rem;
            color: var(--primary-color);
            font-weight: 700;
            margin: 1.5rem 0;
        }

        .payment-methods {
            margin: 20px 0;
        }

        .payment-btn {
            width: 100%;
            padding: 14px;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }

        .wechat-pay {
            background-color: #07c160;
        }

        .wechat-pay:hover {
            background-color: #06b055;
        }

        .wechat-icon {
            font-size: 1.2rem;
        }

        /* 响应式样式 - 重点优化手机端 */
        @media (max-width: 992px) {
            .pricing-card.featured {
                transform: none;
            }
        }

        @media (max-width: 768px) {
            h1 {
                font-size: 2rem;
            }

            h2 {
                font-size: 1.7rem;
            }

            .hero {
                padding: 4rem 0;
            }

            .hero h1 {
                font-size: 2.2rem;
            }

            .hero p {
                font-size: 1rem;
            }

            .nav-links {
                position: fixed;
                top: 70px;
                left: 0;
                right: 0;
                background-color: var(--white);
                flex-direction: column;
                align-items: center;
                padding: 20px 0;
                gap: 15px;
                display: none;
                box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
                z-index: 99;
            }

            .nav-links.active {
                display: flex;
            }

            .menu-toggle {
                display: flex;
            }
            
            /* 会员卡片优化 - 宽度更大 */
            .pricing-grid {
                grid-template-columns: 1fr;
                gap: 20px; /* 新增：增加卡片间距 */
            }
            
            .pricing-card {
                max-width: 100%;
                margin: 0;
                padding: 25px 15px;
            }
            
            .featured .badge {
                top: -12px;
                font-size: 0.8rem;
                padding: 4px 12px;
            }
            .price {
                font-size: 1.8rem;
    }
        }

        @media (max-width: 576px) {
            .navbar .container {
                padding: 12px 15px;
            }

            .logo {
                font-size: 1.5rem;
            }

            .hero {
                padding: 3rem 0;
            }

            .hero h1 {
                font-size: 1.8rem;
            }

            .primary-btn {
                padding: 12px 24px;
                font-size: 1rem;
            }

            .features-grid, .pricing-grid, .support-content {
                grid-template-columns: 1fr;
            }

            .feature-card, .pricing-card, .support-item {
                max-width: 100%;
                padding: 20px;
            }
            
            .pricing-card {
                padding: 20px 12px;
            }
            
            .price {
                font-size: 2rem;
            }
            
            .features-list li {
                font-size: 0.95rem;
                padding-left: 22px;
            }

            .upgrade-btn {
                padding: 12px; /* 调整按钮内边距 */
    }
            
            /* 弹窗优化 */
            .modal-content {
                padding: 25px 20px;
                max-width: 90%;
            }
        }

        /* 动画效果 */
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .feature-card, .pricing-card, .support-item {
            animation: fadeIn 0.5s ease forwards;
        }

        .feature-card:nth-child(2), .pricing-card:nth-child(2), .support-item:nth-child(2) {
            animation-delay: 0.2s;
        }

        .feature-card:nth-child(3), .pricing-card:nth-child(3), .support-item:nth-child(3) {
            animation-delay: 0.4s;
        }

        .feature-card:nth-child(4) {
            animation-delay: 0.6s;
        }

        /* 确保初始状态不可见 */
        .feature-card, .pricing-card, .support-item {
            opacity: 0;
        }


        /* VIP页面专属样式 - 修正版 */
.vip-content {
    padding: 4rem 0;
}

.vip-article-list-section {
    background: linear-gradient(135deg, #f8f9ff 0%, #f0f4ff 100%);
    border-radius: 12px;
    padding: 2.5rem;
    margin-bottom: 3rem;
    box-shadow: 0 6px 20px rgba(44, 110, 203, 0.1);
    border: 1px solid rgba(44, 110, 203, 0.1);
}

.vip-article-list-section h3 {
    position: relative;
    padding-bottom: 15px;
    margin-bottom: 1.5rem;
    color: #2c3e50;
    font-size: 1.8rem;
}

.vip-article-list-section h3:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-color), var(--primary-color));
    border-radius: 2px;
}

.vip-article-list {
    list-style: none;
    margin-top: 1.5rem;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 15px;
}

.vip-article-list li {
    margin-bottom: 12px;
    position: relative;
    padding-left: 30px;
    transition: transform 0.3s ease;
}

.vip-article-list li:hover {
    transform: translateX(5px);
}

.vip-article-list li:before {
    content: '•';
    color: var(--accent-color);
    font-weight: bold;
    position: absolute;
    left: 0;
    top: 0;
    font-size: 1.5rem;
    line-height: 1;
}

.vip-article-list a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
    display: block;
    padding: 8px 12px;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 6px;
    border-left: 3px solid var(--primary-color);
    word-break: break-word; /* 防止长文本溢出 */
}

.vip-article-list a:hover {
    color: var(--accent-color);
    background: white;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

/* 修复移动端列表溢出问题 - 无横向滚动 */
@media (max-width: 768px) {
    .vip-article-list {
        display: block;
        padding-bottom: 15px;
    }
    
    .vip-article-list li {
        display: block;
        width: 100%;
        padding-left: 25px;
        margin-right: 0;
    }
    
    .vip-article-list a {
        font-size: 0.95rem;
        padding: 10px;
    }
}

.vip-service-qrcode {
    background: linear-gradient(135deg, #fff 0%, #f9faff 100%);
    border-radius: 12px;
    box-shadow: 0 8px 25px rgba(44, 110, 203, 0.15);
    padding: 2.5rem;
    text-align: center;
    margin-top: 2rem;
    border: 1px solid rgba(44, 110, 203, 0.1);
    position: relative;
    overflow: hidden;
}

.vip-service-qrcode:before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, rgba(44, 110, 203, 0.1) 0%, rgba(255, 125, 0, 0.1) 100%);
    border-radius: 0 0 0 100%;
}

.vip-service-qrcode h3 {
    position: relative;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
}

/* 客服二维码样式 - 移除白色背景框 */
.vip-qrcode-container {
    margin: 1.5rem auto;
    text-align: center;
}

.vip-qrcode-container img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1); /* 添加轻微阴影代替边框 */
}

.vip-qrcode-container p {
    margin-top: 15px;
    font-weight: 500;
    color: var(--light-text);
    font-size: 1.05rem;
}

/* 确保横图正常显示 */
.vip-qrcode-container img[alt="企业客服二维码"] {
    max-width: 300px; /* 限制最大宽度 */
    max-height: 200px; /* 限制最大高度 */
}

.vip-service-description {
    margin-top: 2.5rem;
    text-align: left;
    background: rgba(44, 110, 203, 0.03);
    padding: 25px;
    border-radius: 12px;
    position: relative;
}

.vip-service-description h4 {
    color: var(--primary-color);
    margin-bottom: 1.2rem;
    font-size: 1.4rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.vip-service-description h4 i {
    color: var(--accent-color);
}

.vip-service-description ul {
    padding-left: 0;
    list-style: none;
}

.vip-service-description li {
    margin-bottom: 12px;
    padding-left: 30px;
    position: relative;
    font-weight: 500;
}

.vip-service-description li:before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 0;
    width: 24px;
    height: 24px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
}

/* 移动端整体调整 */
@media (max-width: 576px) {
    .vip-article-list-section,
    .vip-service-qrcode {
        padding: 1.5rem;
    }
    
    .vip-service-description {
        padding: 20px 15px;
    }
    
    /* 移动端客服二维码调整 */
    .vip-qrcode-container img[alt="企业客服二维码"] {
        max-width: 100%;
        max-height: 150px;
    }
}
/* 在index.css末尾添加 */
.feature-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: bold;
    margin: 10px 0;
}

.feature-badge.vip {
    background: linear-gradient(45deg, #ff7d00, #ffa94d);
    color: white;
}

.feature-card.featured {
    transform: scale(1.05);
    border: 2px solid #2c6ecb;
    position: relative;
}

.feature-card.featured:before {
    content: '推荐';
    position: absolute;
    top: -10px;
    right: 20px;
    background: #ff7d00;
    color: white;
    padding: 5px 15px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: bold;
}