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

        html, body {
            height: 100%;
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
            color: #333;
            line-height: 1.6;
        }

        /* 导航栏样式 */
        .sw9d9n-navbar {
            background: linear-gradient(135deg, #4285F4 0%, #1967D2 100%);
            padding: 12px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
        }

        .sw9d9n-navbar-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .sw9d9n-logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .sw9d9n-logo img {
            height: 40px;
            width: auto;
        }

        .sw9d9n-logo-text {
            color: white;
            font-size: 18px;
            font-weight: 600;
            letter-spacing: 0.5px;
        }

        .sw9d9n-nav-links {
            display: flex;
            gap: 30px;
            align-items: center;
        }

        .sw9d9n-nav-link {
            color: white;
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            transition: opacity 0.3s ease;
            padding: 8px 0;
            border-bottom: 2px solid transparent;
        }

        .sw9d9n-nav-link:hover {
            opacity: 0.8;
            border-bottom-color: rgba(255, 255, 255, 0.5);
        }

        /* 响应式导航 */
        @media (max-width: 768px) {
            .sw9d9n-nav-links {
                gap: 15px;
            }

            .sw9d9n-nav-link {
                font-size: 13px;
            }
        }

        /* 主容器 */
        .sw9d9n-main-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 英雄区域 */
        .sw9d9n-hero {
            background: linear-gradient(135deg, #f5f5f5 0%, #ffffff 100%);
            padding: 60px 20px;
            margin-top: 20px;
            border-radius: 12px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .sw9d9n-hero-content h1 {
            font-size: 42px;
            color: #1967D2;
            margin-bottom: 20px;
            font-weight: 700;
            line-height: 1.3;
        }

        .sw9d9n-hero-content p {
            font-size: 16px;
            color: #555;
            margin-bottom: 15px;
            line-height: 1.8;
        }

        .sw9d9n-hero-image {
            text-align: center;
        }

        .sw9d9n-hero-image img {
            max-width: 100%;
            height: auto;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        }

        /* CTA按钮 */
        .sw9d9n-cta-group {
            display: flex;
            gap: 15px;
            margin-top: 30px;
            flex-wrap: wrap;
        }

        .sw9d9n-btn {
            padding: 14px 32px;
            font-size: 16px;
            font-weight: 600;
            border: none;
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
            text-align: center;
        }

        .sw9d9n-btn-primary {
            background: linear-gradient(135deg, #4285F4 0%, #1967D2 100%);
            color: white;
            box-shadow: 0 4px 12px rgba(66, 133, 244, 0.3);
        }

        .sw9d9n-btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(66, 133, 244, 0.4);
        }

        .sw9d9n-btn-secondary {
            background: white;
            color: #1967D2;
            border: 2px solid #1967D2;
        }

        .sw9d9n-btn-secondary:hover {
            background: #f0f5ff;
            transform: translateY(-2px);
        }

        @media (max-width: 768px) {
            .sw9d9n-hero {
                grid-template-columns: 1fr;
                padding: 40px 20px;
                gap: 30px;
            }

            .sw9d9n-hero-content h1 {
                font-size: 32px;
            }

            .sw9d9n-cta-group {
                flex-direction: column;
            }

            .sw9d9n-btn {
                width: 100%;
            }
        }

        /* 特性区域 */
        .sw9d9n-features {
            padding: 60px 20px;
            background: #fafafa;
            margin-top: 40px;
        }

        .sw9d9n-features-title {
            text-align: center;
            font-size: 36px;
            color: #1967D2;
            margin-bottom: 50px;
            font-weight: 700;
        }

        .sw9d9n-features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .sw9d9n-feature-card {
            background: white;
            padding: 30px;
            border-radius: 12px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            transition: all 0.3s ease;
        }

        .sw9d9n-feature-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
        }

        .sw9d9n-feature-icon {
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, #4285F4 0%, #1967D2 100%);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 24px;
            margin-bottom: 15px;
        }

        .sw9d9n-feature-title {
            font-size: 20px;
            color: #333;
            margin-bottom: 12px;
            font-weight: 600;
        }

        .sw9d9n-feature-desc {
            color: #666;
            font-size: 14px;
            line-height: 1.7;
        }

        /* 平台兼容性区域 */
        .sw9d9n-compatibility {
            padding: 60px 20px;
            background: white;
            margin-top: 40px;
        }

        .sw9d9n-compat-title {
            text-align: center;
            font-size: 32px;
            color: #1967D2;
            margin-bottom: 40px;
            font-weight: 700;
        }

        .sw9d9n-compat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 25px;
        }

        .sw9d9n-compat-item {
            background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
            padding: 25px;
            border-radius: 10px;
            border-left: 4px solid #4285F4;
            text-align: center;
        }

        .sw9d9n-compat-icon {
            font-size: 40px;
            margin-bottom: 15px;
        }

        .sw9d9n-compat-name {
            font-size: 18px;
            color: #333;
            margin-bottom: 10px;
            font-weight: 600;
        }

        .sw9d9n-compat-desc {
            color: #666;
            font-size: 13px;
            line-height: 1.6;
        }

        /* 下载指南区域 */
        .sw9d9n-guide {
            padding: 60px 20px;
            background: linear-gradient(135deg, #f5f5f5 0%, #fafafa 100%);
            margin-top: 40px;
        }

        .sw9d9n-guide-title {
            text-align: center;
            font-size: 32px;
            color: #1967D2;
            margin-bottom: 40px;
            font-weight: 700;
        }

        .sw9d9n-guide-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .sw9d9n-step {
            background: white;
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
        }

        .sw9d9n-step-number {
            display: inline-block;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, #4285F4 0%, #1967D2 100%);
            color: white;
            border-radius: 50%;
            text-align: center;
            line-height: 40px;
            font-weight: 700;
            font-size: 18px;
            margin-bottom: 15px;
        }

        .sw9d9n-step-title {
            font-size: 18px;
            color: #333;
            margin-bottom: 10px;
            font-weight: 600;
        }

        .sw9d9n-step-desc {
            color: #666;
            font-size: 14px;
            line-height: 1.7;
        }

        /* FAQ区域 */
        .sw9d9n-faq {
            padding: 60px 20px;
            background: white;
            margin-top: 40px;
        }

        .sw9d9n-faq-title {
            text-align: center;
            font-size: 32px;
            color: #1967D2;
            margin-bottom: 40px;
            font-weight: 700;
        }

        .sw9d9n-faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .sw9d9n-faq-item {
            margin-bottom: 20px;
            border-bottom: 1px solid #eee;
            padding-bottom: 20px;
        }

        .sw9d9n-faq-item:last-child {
            border-bottom: none;
        }

        .sw9d9n-faq-question {
            font-size: 16px;
            color: #333;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 0;
        }

        .sw9d9n-faq-question:hover {
            color: #4285F4;
        }

        .sw9d9n-faq-toggle {
            font-size: 20px;
            color: #4285F4;
        }

        .sw9d9n-faq-answer {
            color: #666;
            font-size: 14px;
            line-height: 1.8;
            margin-top: 10px;
            display: none;
        }

        .sw9d9n-faq-answer.active {
            display: block;
        }

        /* 页脚 */
        .sw9d9n-footer {
            background: linear-gradient(135deg, #1a237e 0%, #0d47a1 100%);
            color: white;
            padding: 40px 20px;
            margin-top: 60px;
        }

        .sw9d9n-footer-container {
            max-width: 1200px;
            margin: 0 auto;
        }

        .sw9d9n-footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }

        .sw9d9n-footer-section h3 {
            font-size: 16px;
            margin-bottom: 15px;
            font-weight: 600;
        }

        .sw9d9n-footer-section ul {
            list-style: none;
        }

        .sw9d9n-footer-section ul li {
            margin-bottom: 10px;
        }

        .sw9d9n-footer-section a {
            color: rgba(255, 255, 255, 0.8);
            text-decoration: none;
            font-size: 14px;
            transition: color 0.3s ease;
        }

        .sw9d9n-footer-section a:hover {
            color: white;
        }

        .sw9d9n-footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.2);
            padding-top: 20px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
        }

        /* 响应式设计 */
        @media (max-width: 600px) {
            .sw9d9n-navbar-container {
                padding: 0 15px;
            }

            .sw9d9n-nav-links {
                gap: 12px;
            }

            .sw9d9n-nav-link {
                font-size: 12px;
            }

            .sw9d9n-main-container {
                padding: 0 15px;
            }

            .sw9d9n-hero {
                padding: 30px 15px;
                border-radius: 8px;
            }

            .sw9d9n-hero-content h1 {
                font-size: 26px;
            }

            .sw9d9n-features-title,
            .sw9d9n-compat-title,
            .sw9d9n-guide-title,
            .sw9d9n-faq-title {
                font-size: 26px;
            }

            .sw9d9n-features-grid,
            .sw9d9n-compat-grid,
            .sw9d9n-guide-steps {
                grid-template-columns: 1fr;
            }
        }