/* 原有CSS完全保持不变 */
        :root {
            --synology-blue: #1d4ed8;
            --synology-blue-dark: #1e40af;
            --synology-blue-light: #3b82f6;
            --wechat-green: #07c160;
            --gray-50: #f9fafb;
            --gray-100: #f3f4f6;
            --gray-200: #e5e7eb;
            --gray-300: #d1d5db;
            --gray-400: #9ca3af;
            --gray-500: #6b7280;
            --gray-600: #4b5563;
            --gray-700: #374151;
            --gray-800: #1f2937;
            --gray-900: #111827;
            --white: #ffffff;
            --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
            --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
            --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
            --radius-sm: 0.375rem;
            --radius-md: 0.5rem;
            --radius-lg: 0.75rem;
            --radius-xl: 1rem;
            --transition: all 0.2s ease-in-out;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            line-height: 1.6;
            color: var(--gray-800);
            background-color: var(--white);
            font-size: 16px;
            font-weight: 400;
        }
        
        .container {
            width: 100%;
            max-width: 1560px;
            margin: 0 auto;
            padding: 0 24px;
        }
        
        /* 顶部导航 - 优化 */
        .header {
            background-color: var(--white);
            box-shadow: var(--shadow-md);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px 0;
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
        }
        
        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--synology-blue), var(--synology-blue-light));
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--white);
            font-weight: 700;
            font-size: 14px;
        }
        
        .logo-text {
            font-size: 22px;
            font-weight: 700;
            color: var(--gray-900);
        }
        
        .logo-text span {
            color: var(--synology-blue);
        }
        
        .nav {
            display: flex;
            gap: 32px;
        }
        
        .nav-link {
            color: var(--gray-700);
            text-decoration: none;
            font-weight: 500;
            font-size: 16px;
            padding: 8px 0;
            position: relative;
            transition: var(--transition);
        }
        
        .nav-link:hover,
        .nav-link.active {
            color: var(--synology-blue);
        }
        
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: var(--synology-blue);
            border-radius: 2px;
        }
        
        .header-actions {
            display: flex;
            gap: 16px;
            align-items: center;
        }
        
        /* 按钮样式合并 */
        .btn {
            display: inline-block;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 16px;
            text-decoration: none;
            cursor: pointer;
            transition: var(--transition);
            border: 2px solid transparent;
            text-align: center;
        }
        
        .btn-outline {
            background-color: transparent;
            border-color: var(--synology-blue);
            color: var(--synology-blue);
        }
        
        .btn-outline:hover {
            background-color: var(--synology-blue);
            color: var(--white);
        }
        
        .btn-primary {
            background-color: var(--synology-blue);
            color: var(--white);
            border-color: var(--synology-blue);
        }
        
        .btn-primary:hover {
            background-color: var(--synology-blue-dark);
            border-color: var(--synology-blue-dark);
        }
        
        .btn-green {
            background-color: var(--wechat-green);
            color: var(--white);
            border-color: var(--wechat-green);
        }
        
        .btn-green:hover {
            background-color: #06ad56;
            border-color: #06ad56;
        }
        
        /* Hero区域 */
        .hero {
            background: linear-gradient(135deg, #f8fafc 0%, #eef2ff 100%);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }
        
        .hero::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 400px;
            height: 400px;
            background-color: rgba(59, 130, 246, 0.1);
            border-radius: 50%;
        }
        
        .hero-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        
        .hero-content h1 {
            font-size: 48px;
            line-height: 1.2;
            margin-bottom: 20px;
            color: var(--gray-900);
            font-weight: 800;
        }
        
        .hero-content h1 .highlight {
            color: var(--synology-blue);
        }
        
        .hero-content h1 .highlight-green {
            color: var(--wechat-green);
        }
        
        .hero-content p {
            font-size: 20px;
            color: var(--gray-600);
            margin-bottom: 32px;
            max-width: 90%;
        }
        
        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 40px;
        }
        
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            background-color: var(--white);
            border-radius: 50px;
            box-shadow: var(--shadow-sm);
            font-weight: 500;
            font-size: 15px;
        }
        
        .badge i {
            color: var(--wechat-green);
        }
        
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        
        .hero-image {
            display: flex;
            justify-content: center;
            align-items: center;
        }
        
        .hero-image-container {
            position: relative;
            width: 100%;
            max-width: 600px;
        }
        
        .integration-diagram {
            background-color: var(--white);
            border-radius: var(--radius-xl);
            padding: 32px;
            box-shadow: var(--shadow-xl);
            border: 1px solid var(--gray-200);
        }
        
        .integration-diagram h3 {
            text-align: center;
            margin-bottom: 32px;
            color: var(--gray-800);
            font-size: 20px;
            font-weight: 700;
        }
        
        .integration-flow {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 24px;
        }
        
        .flow-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 12px;
        }
        
        .flow-icon {
            width: 70px;
            height: 70px;
            border-radius: var(--radius-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 32px;
            color: var(--white);
        }
        
        .flow-icon.wechat {
            background-color: var(--wechat-green);
        }
        
        .flow-icon.synology {
            background: linear-gradient(135deg, var(--synology-blue), var(--synology-blue-light));
        }
        
        .flow-icon.user {
            background-color: var(--gray-600);
        }
        
        .flow-arrow {
            font-size: 24px;
            color: var(--gray-400);
        }
        
        /* 核心价值部分 */
        .value-section,
        .features-section,
        .demo-video-section,
        .comparison-section,
        .steps-section,
        .cta-section {
            padding: 100px 0;
        }
        
        .value-section,
        .demo-video-section,
        .steps-section {
            background-color: var(--white);
        }
        
        .features-section,
        .comparison-section {
            background-color: var(--gray-50);
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 60px;
        }
        
        .ssot {
            font-size: 40px;
            font-weight: 800;
            color: var(--gray-900);
            margin-bottom: 16px;
        }
        
        .section-title p {
            font-size: 20px;
            color: var(--gray-600);
            max-width: 800px;
            margin: 0 auto;
        }
        
        /* 卡片通用样式 - 合并 */
        .value-cards,
        .features-grid,
        .steps-container {
            display: grid;
            gap: 32px;
            margin-bottom: 60px;
        }
        
        .value-cards {
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
        }
        
        .value-card,
        .feature-item,
        .step {
            background-color: var(--white);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--gray-100);
            transition: var(--transition);
        }
        
        .value-card:hover,
        .feature-item:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-xl);
        }
        
        .value-card {
            padding: 40px 32px;
        }
        
        .value-icon {
            width: 64px;
            height: 64px;
            border-radius: var(--radius-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 24px;
            font-size: 28px;
            color: var(--white);
        }
        
        .value-icon.cost {
            background-color: #10b981;
        }
        
        .value-icon.easy {
            background-color: var(--synology-blue);
        }
        
        .value-icon.secure {
            background-color: #8b5cf6;
        }
        
        .value-card h2,
        .feature-header h3,
        .step h3 {
            font-size: 24px;
            font-weight: 400;
            margin-bottom: 16px;
            color: var(--gray-900);
        }
        
        .value-card p,
        .feature-item p,
        .step p {
            color: var(--gray-600);
            margin-bottom: 20px;
        }
        
        /* 功能特性 */
        .features-grid {
            grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
        }
        
        .feature-item {
            padding: 32px;
        }
        
        .feature-header {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 20px;
        }
        
        .feature-icon-wrapper {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            flex-shrink: 0;
        }
        
        .feature-icon-wrapper.blue {
            background-color: #dbeafe;
            color: var(--synology-blue);
        }
        
        .feature-icon-wrapper.green {
            background-color: #dcfce7;
            color: var(--wechat-green);
        }
        
        .feature-icon-wrapper.purple {
            background-color: #f3e8ff;
            color: #8b5cf6;
        }
        
        .feature-icon-wrapper.gold {
            background-color: rgba(245, 158, 11, 0.1);
            color: #f59e0b;
        }
        
        .feature-icon-wrapper.orange {
            background-color: rgba(249, 115, 22, 0.1);
            color: #f97316;
        }
        
        /* 演示视频部分 */
        .video-container {
            position: relative;
            width: 100%;
            max-width: 1000px;
            margin: 0 auto;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-xl);
        }
        
        .video-wrapper {
            position: relative;
            padding-bottom: 56.25%;
            height: 0;
            background-color: #000;
        }
        
        .video-wrapper iframe,
        .video-wrapper video {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            border: none;
        }
        
        /* 对比表格 */
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        
        .comparison-table thead {
            background-color: var(--gray-900);
            color: var(--white);
        }
        
        .comparison-table th {
            padding: 24px 20px;
            text-align: left;
            font-weight: 700;
            font-size: 18px;
        }
        
        .comparison-table th.plan-name {
            font-size: 22px;
        }
        
        .comparison-table tbody tr {
            border-bottom: 1px solid var(--gray-200);
        }
        
        .comparison-table tbody tr:nth-child(even) {
            background-color: var(--gray-50);
        }
        
        .comparison-table td {
            padding: 20px;
            font-size: 16px;
        }
        
        .check-icon {
            color: #10b981;
            font-size: 20px;
        }
        
        .x-icon {
            color: #ef4444;
            font-size: 20px;
        }
        
        .highlight-cell {
            background-color: rgba(59, 130, 246, 0.05);
            font-weight: 600;
        }
        
        /* 实施步骤 */
        .steps-container {
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            counter-reset: step-counter;
        }
        
        .step {
            position: relative;
            counter-increment: step-counter;
        }
        
        .step::before {
            content: counter(step-counter);
            position: absolute;
            top: -20px;
            left: 32px;
            width: 40px;
            height: 40px;
            background-color: var(--synology-blue);
            color: var(--white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
        }
        
        /* CTA区域 */
        .cta-section {
            background: linear-gradient(135deg, var(--synology-blue-dark) 0%, var(--synology-blue) 100%);
            color: var(--white);
            text-align: center;
        }
        
        .cta-section h2 {
            font-size: 40px;
            font-weight: 800;
            margin-bottom: 20px;
        }
        
        .cta-section p {
            font-size: 20px;
            max-width: 800px;
            margin: 0 auto 40px;
            opacity: 0.9;
        }
        
        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        
        /* 价格模块 */
        .pricing-section-aligned {
            padding: 100px 0;
            background-color: var(--gray-50);
        }
        
        .pricing-cards-aligned {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
            max-width: 100%;
        }
        
        .pricing-card-aligned {
            background-color: var(--white);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--gray-200);
            transition: var(--transition);
            position: relative;
            display: flex;
            flex-direction: column;
            height: auto;
        }
        
        .pricing-card-aligned:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-xl);
        }
        
        .trial-card {
            border-top: 4px solid var(--synology-blue);
        }
        
        .card-badge-aligned {
            position: absolute;
            top: 20px;
            right: 20px;
            background-color: var(--wechat-green);
            color: white;
            padding: 6px 16px;
            font-weight: 600;
            font-size: 14px;
            border-radius: 4px;
            box-shadow: var(--shadow-sm);
        }
        
        .card-header-aligned {
            margin-bottom: 28px;
            padding-bottom: 24px;
            border-bottom: 1px solid var(--gray-200);
        }
        
        .card-header-aligned h3 {
            font-size: 28px;
            font-weight: 800;
            color: var(--gray-900);
            margin-bottom: 8px;
        }
        
        .card-subtitle-aligned {
            color: var(--gray-600);
            font-size: 16px;
            margin-bottom: 20px;
        }
        
        .price-aligned {
            display: flex;
            justify-content: center;
            align-items: baseline;
        }
        
        .currency-aligned {
            font-size: 24px;
            font-weight: 600;
            color: var(--gray-700);
        }
        
        .amount-aligned {
            font-size: 52px;
            font-weight: 800;
            color: var(--synology-blue);
            margin: 0 5px;
            line-height: 1;
        }
        
        .trial-card .amount-aligned {
            color: #10b981;
        }
        
        .permanent-price {
            font-size: 36px;
            color: var(--gray-800);
            font-weight: 700;
        }
        
        .period-aligned {
            font-size: 18px;
            color: var(--gray-500);
        }
        
        .features-aligned-grid {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px 24px;
            margin-bottom: 32px;
            flex-grow: 1;
        }
        
        .features-aligned-grid li {
            display: flex;
            align-items: flex-start;
        }
        
        .features-aligned-grid i {
            color: #10b981;
            font-size: 18px;
            margin-right: 10px;
            margin-top: 2px;
            flex-shrink: 0;
        }
        
        .features-aligned-grid span {
            color: var(--gray-700);
            font-size: 15px;
            line-height: 1.4;
        }
        
        .card-footer-aligned {
            margin-top: auto;
            padding-top: 24px;
            border-top: 1px solid var(--gray-200);
        }
        
        .btn-aligned {
            display: block;
            padding: 16px 24px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 16px;
            text-decoration: none;
            text-align: center;
            transition: var(--transition);
            border: 2px solid transparent;
            width: 100%;
        }
        
        .btn-trial-aligned {
            background-color: var(--synology-blue);
            color: var(--white);
            border-color: var(--synology-blue);
        }
        
        .btn-trial-aligned:hover {
            background-color: var(--synology-blue-dark);
        }
        
        .btn-permanent-aligned {
            background-color: transparent;
            border-color: var(--gray-400);
            color: var(--gray-800);
        }
        
        .btn-permanent-aligned:hover {
            background-color: var(--gray-100);
        }
        
        .pricing-note {
            text-align: center;
            margin-top: 48px;
            padding: 20px;
            color: var(--gray-600);
            font-size: 16px;
        }
        
        .pricing-note i {
            color: var(--synology-blue);
            margin-right: 8px;
        }
        
        /* FAQ模块 */
        .faq-section-marketing {
            padding: 100px 0;
            background-color: var(--white);
        }
        
        .faq-grid-marketing {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
            gap: 28px;
            margin-top: 20px;
        }
        
        .faq-item-marketing {
            background-color: var(--white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--gray-200);
            padding: 26px;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }
        
        .faq-item-marketing:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--synology-blue-light);
        }
        
        .faq-header-marketing {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            margin-bottom: 18px;
        }
        
        .faq-q-marketing {
            width: 22px;
            height: 22px;
            min-width: 22px;
            background: linear-gradient(135deg, var(--synology-blue), var(--synology-blue-light));
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 13px;
            flex-shrink: 0;
        }
        
        .faq-item-marketing:nth-child(8) .faq-q-marketing {
            background: linear-gradient(135deg, #10b981, #34d399);
        }
        
        .faq-item-marketing:nth-child(9) .faq-q-marketing {
            background: linear-gradient(135deg, #8b5cf6, #a78bfa);
        }
        
        .faq-title-marketing h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--gray-900);
            margin: 0;
            line-height: 1.4;
            padding-top: 2px;
        }
        
        .faq-answer-marketing {
            border-top: 1px solid var(--gray-100);
            padding-top: 18px;
        }
        
        .faq-answer-marketing p {
            color: var(--gray-700);
            line-height: 1.7;
            margin: 0;
            font-size: 15px;
        }
        
        .faq-answer-marketing strong {
            color: var(--synology-blue);
            font-weight: 600;
        }
        
        /* 页脚 */
        .footer {
            background-color: var(--gray-900);
            color: var(--gray-300);
            padding: 40px 0 40px;
        }
        
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 60px;
        }
        
        .footer-column h3 {
            color: var(--white);
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 24px;
        }
        
        .footer-column ul {
            list-style: none;
        }
        
        .footer-column li {
            margin-bottom: 12px;
        }
        
        .footer-column a {
            color: var(--gray-400);
            text-decoration: none;
            transition: var(--transition);
        }
        
        .footer-column a:hover {
            color: var(--white);
        }
        
        .footer-bottom {
            text-align: center;
            padding-top: 40px;
            color: var(--gray-500);
            font-size: 14px;
        }
        
        /* 响应式设计 - 简化合并 */
        @media (max-width: 1200px) {
            .hero-container {
                gap: 40px;
            }
            
            .hero-content h1 {
                font-size: 42px;
            }
            
            .faq-grid-marketing {
                grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
                gap: 24px;
            }
        }
        
        @media (max-width: 992px) {
            .hero-container {
                grid-template-columns: 1fr;
                text-align: center;
            }
            
            .hero-content p {
                max-width: 100%;
            }
            
            .hero-badges,
            .hero-actions {
                justify-content: center;
            }
            
            .nav {
                display: none;
            }
            
            .pricing-cards-aligned {
                grid-template-columns: 1fr;
                max-width: 600px;
                margin: 0 auto;
            }
            
            .features-aligned-grid {
                grid-template-columns: 1fr;
            }
            
            .faq-section-marketing {
                padding: 80px 0;
            }
            
            .faq-grid-marketing {
                grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
                gap: 22px;
            }
        }
        
        @media (max-width: 768px) {
            .hero-content h1 {
                font-size: 36px;
            }
            
            .ssot {
                font-size: 32px;
            }
            
            .value-cards,
            .features-grid,
            .steps-container {
                grid-template-columns: 1fr;
            }
            
            .comparison-table {
                display: block;
                overflow-x: auto;
            }
            
            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
            
            .btn,
            .btn-aligned {
                width: 100%;
                max-width: 300px;
            }
            
            .pricing-section-aligned,
            .faq-section-marketing {
                padding: 80px 0;
            }
            
            .section-title h2 {
                font-size: 32px;
            }
            
            .pricing-card-aligned {
                padding: 32px 24px;
            }
            
            .card-header-aligned h3 {
                font-size: 24px;
            }
            
            .amount-aligned {
                font-size: 42px;
            }
            
            .permanent-price {
                font-size: 30px;
            }
            
            .faq-section-marketing {
                padding: 70px 0;
            }
            
            .section-title p {
                font-size: 18px;
            }
            
            .faq-grid-marketing {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            
            .faq-item-marketing {
                padding: 22px;
            }
            
            .faq-title-marketing h4 {
                font-size: 16px;
            }
        }
        
        @media (max-width: 576px) {
            .container {
                padding: 0 16px;
            }
            
            .hero,
            .value-section,
            .features-section,
            .demo-video-section,
            .comparison-section,
            .steps-section,
            .cta-section,
            .pricing-section-aligned,
            .faq-section-marketing {
                padding: 60px 0;
            }
            
            .ssot {
                font-size: 28px;
            }
            
            .amount-aligned {
                font-size: 36px;
            }
            
            .card-badge-aligned {
                top: 15px;
                right: 15px;
                font-size: 12px;
                padding: 4px 12px;
            }
            
            .faq-header-marketing {
                gap: 12px;
            }
            
            .faq-item-marketing {
                padding: 20px;
            }
            
            .faq-q-marketing {
                width: 20px;
                height: 20px;
                min-width: 20px;
                font-size: 12px;
            }
        }
        
        /* 性能优化 - 极简实用 */
        img { max-width: 100%; height: auto; }
        video { max-width: 100%; }