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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
            color: #202124;
            line-height: 1.6;
            background-color: #fff;
        }

        /* 导航栏样式 */
        .sw9d9n-header {
            background-color: #fff;
            border-bottom: 1px solid #dadce0;
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .sw9d9n-nav {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

        .sw9d9n-logo {
            display: flex;
            align-items: center;
            text-decoration: none;
            font-size: 20px;
            font-weight: 500;
            color: #1f2937;
        }

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

        .sw9d9n-nav-menu {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
        }

        .sw9d9n-nav-link {
            text-decoration: none;
            color: #5f6368;
            font-size: 14px;
            font-weight: 500;
            transition: color 0.3s ease;
            padding: 8px 0;
        }

        .sw9d9n-nav-link:hover {
            color: #1f2937;
        }

        .sw9d9n-nav-link.active {
            color: #1a73e8;
            border-bottom: 3px solid #1a73e8;
        }

        .sw9d9n-menu-toggle {
            display: none;
            flex-direction: column;
            background: none;
            border: none;
            cursor: pointer;
            gap: 5px;
            padding: 8px;
        }

        .sw9d9n-menu-toggle span {
            width: 24px;
            height: 2px;
            background-color: #5f6368;
            transition: all 0.3s ease;
            border-radius: 2px;
        }

        .sw9d9n-nav-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: rgba(0, 0, 0, 0.5);
            z-index: 999;
        }

        .sw9d9n-nav-overlay.active {
            display: block;
        }

        /* 页面顶部区域 - 独特设计 */
        .sw9d9n-feature-header {
            background: linear-gradient(135deg, #f8f9fa 0%, #e8eaed 100%);
            padding: 48px 24px;
            border-bottom: 1px solid #dadce0;
        }

        .sw9d9n-feature-header-content {
            max-width: 1400px;
            margin: 0 auto;
        }

        .sw9d9n-breadcrumb {
            font-size: 13px;
            color: #5f6368;
            margin-bottom: 16px;
        }

        .sw9d9n-breadcrumb a {
            color: #1a73e8;
            text-decoration: none;
        }

        .sw9d9n-breadcrumb a:hover {
            text-decoration: underline;
        }

        .sw9d9n-page-title {
            font-size: 48px;
            font-weight: 300;
            color: #202124;
            margin-bottom: 16px;
            line-height: 1.2;
        }

        .sw9d9n-page-subtitle {
            font-size: 18px;
            color: #5f6368;
            max-width: 600px;
            line-height: 1.5;
        }

        /* 功能导航 */
        .sw9d9n-feature-nav {
            max-width: 1400px;
            margin: 0 auto;
            padding: 24px;
            display: flex;
            gap: 16px;
            overflow-x: auto;
            scroll-behavior: smooth;
        }

        .sw9d9n-feature-nav-btn {
            padding: 10px 20px;
            border: 1px solid #dadce0;
            background-color: #fff;
            color: #5f6368;
            border-radius: 4px;
            cursor: pointer;
            font-size: 14px;
            font-weight: 500;
            white-space: nowrap;
            transition: all 0.3s ease;
        }

        .sw9d9n-feature-nav-btn:hover {
            background-color: #f8f9fa;
            border-color: #5f6368;
        }

        .sw9d9n-feature-nav-btn.active {
            background-color: #1a73e8;
            color: #fff;
            border-color: #1a73e8;
        }

        /* 主要内容区域 */
        .sw9d9n-features-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 48px 24px;
        }

        /* 功能卡片网格 */
        .sw9d9n-features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
            margin-bottom: 64px;
        }

        .sw9d9n-feature-card {
            background-color: #f8f9fa;
            padding: 32px;
            border-radius: 8px;
            transition: all 0.3s ease;
            border: 1px solid transparent;
        }

        .sw9d9n-feature-card:hover {
            background-color: #fff;
            border: 1px solid #dadce0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
        }

        .sw9d9n-feature-icon {
            font-size: 40px;
            margin-bottom: 16px;
            display: block;
        }

        .sw9d9n-feature-title {
            font-size: 18px;
            font-weight: 500;
            color: #202124;
            margin-bottom: 12px;
        }

        .sw9d9n-feature-desc {
            font-size: 14px;
            color: #5f6368;
            line-height: 1.6;
        }

        /* 功能详情部分 */
        .sw9d9n-feature-details {
            margin-bottom: 64px;
        }

        .sw9d9n-detail-section {
            margin-bottom: 48px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .sw9d9n-detail-section:nth-child(even) {
            grid-template-columns: 1fr 1fr;
        }

        .sw9d9n-detail-section:nth-child(even) .sw9d9n-detail-image {
            order: -1;
        }

        .sw9d9n-detail-image {
            border-radius: 8px;
            overflow: hidden;
            background-color: #f8f9fa;
            min-height: 300px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .sw9d9n-detail-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }

        .sw9d9n-detail-content h3 {
            font-size: 32px;
            font-weight: 300;
            color: #202124;
            margin-bottom: 16px;
            line-height: 1.2;
        }

        .sw9d9n-detail-content p {
            font-size: 16px;
            color: #5f6368;
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .sw9d9n-detail-list {
            list-style: none;
            margin-top: 20px;
        }

        .sw9d9n-detail-list li {
            font-size: 14px;
            color: #5f6368;
            padding: 8px 0;
            padding-left: 24px;
            position: relative;
        }

        .sw9d9n-detail-list li:before {
            content: "✓";
            position: absolute;
            left: 0;
            color: #1a73e8;
            font-weight: bold;
        }

        /* 统计数据区 */
        .sw9d9n-stats-section {
            background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%);
            padding: 64px 24px;
            margin: 64px 0;
            border-radius: 12px;
        }

        .sw9d9n-stats-container {
            max-width: 1400px;
            margin: 0 auto;
        }

        .sw9d9n-stats-title {
            font-size: 32px;
            font-weight: 300;
            color: #fff;
            margin-bottom: 48px;
            text-align: center;
        }

        .sw9d9n-stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 32px;
        }

        .sw9d9n-stat-item {
            text-align: center;
            color: #fff;
        }

        .sw9d9n-stat-number {
            font-size: 48px;
            font-weight: 300;
            margin-bottom: 8px;
        }

        .sw9d9n-stat-unit {
            font-size: 18px;
            font-weight: 500;
            margin-bottom: 8px;
        }

        .sw9d9n-stat-label {
            font-size: 14px;
            opacity: 0.9;
            line-height: 1.5;
        }

        /* 应用场景 */
        .sw9d9n-scenarios-section {
            margin: 64px 0;
        }

        .sw9d9n-scenarios-title {
            font-size: 32px;
            font-weight: 300;
            color: #202124;
            margin-bottom: 48px;
            text-align: center;
        }

        .sw9d9n-scenarios-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

        .sw9d9n-scenario-card {
            background-color: #f8f9fa;
            padding: 32px;
            border-radius: 8px;
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .sw9d9n-scenario-card:hover {
            background-color: #fff;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            transform: translateY(-4px);
        }

        .sw9d9n-scenario-icon {
            font-size: 48px;
            margin-bottom: 16px;
        }

        .sw9d9n-scenario-title {
            font-size: 18px;
            font-weight: 500;
            color: #202124;
            margin-bottom: 12px;
        }

        .sw9d9n-scenario-desc {
            font-size: 14px;
            color: #5f6368;
            line-height: 1.6;
        }

        /* 技术优势 */
        .sw9d9n-tech-section {
            margin: 64px 0;
        }

        .sw9d9n-tech-title {
            font-size: 32px;
            font-weight: 300;
            color: #202124;
            margin-bottom: 48px;
            text-align: center;
        }

        .sw9d9n-tech-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
        }

        .sw9d9n-tech-card {
            background-color: #fff;
            border: 1px solid #dadce0;
            padding: 32px;
            border-radius: 8px;
            transition: all 0.3s ease;
        }

        .sw9d9n-tech-card:hover {
            border-color: #1a73e8;
            box-shadow: 0 4px 16px rgba(26, 115, 232, 0.15);
        }

        .sw9d9n-tech-card h3 {
            font-size: 20px;
            font-weight: 500;
            color: #202124;
            margin-bottom: 12px;
        }

        .sw9d9n-tech-card p {
            font-size: 14px;
            color: #5f6368;
            line-height: 1.6;
        }

        /* CTA按钮 */
        .sw9d9n-cta-section {
            background-color: #f8f9fa;
            padding: 64px 24px;
            text-align: center;
            margin: 64px 0;
            border-radius: 12px;
        }

        .sw9d9n-cta-title {
            font-size: 32px;
            font-weight: 300;
            color: #202124;
            margin-bottom: 24px;
        }

        .sw9d9n-cta-description {
            font-size: 16px;
            color: #5f6368;
            margin-bottom: 32px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .sw9d9n-btn {
            display: inline-block;
            padding: 12px 32px;
            background-color: #1a73e8;
            color: #fff;
            text-decoration: none;
            border-radius: 4px;
            font-size: 16px;
            font-weight: 500;
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
            gap: 8px;
        }

        .sw9d9n-btn:hover {
            background-color: #1565c0;
            box-shadow: 0 4px 12px rgba(26, 115, 232, 0.3);
        }

        .sw9d9n-btn-secondary {
            background-color: #fff;
            color: #1a73e8;
            border: 1px solid #1a73e8;
            margin-left: 16px;
        }

        .sw9d9n-btn-secondary:hover {
            background-color: #f8f9fa;
            border-color: #1565c0;
            color: #1565c0;
        }

        /* 页脚 */
        .sw9d9n-footer {
            background-color: #202124;
            color: #fff;
            padding: 48px 24px;
            margin-top: 64px;
        }

        .sw9d9n-footer-content {
            max-width: 1400px;
            margin: 0 auto;
        }

        .sw9d9n-footer-brand {
            font-size: 18px;
            font-weight: 500;
            margin-bottom: 32px;
        }

        .sw9d9n-footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 32px;
            margin-bottom: 32px;
        }

        .sw9d9n-footer-section h4 {
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 16px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

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

        .sw9d9n-footer-section li {
            margin-bottom: 12px;
        }

        .sw9d9n-footer-section a {
            color: #9aa0a6;
            text-decoration: none;
            font-size: 13px;
            transition: color 0.3s ease;
        }

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

        .sw9d9n-footer-bottom {
            border-top: 1px solid #5f6368;
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }

        .sw9d9n-footer-bottom-left {
            font-size: 12px;
            color: #9aa0a6;
        }

        .sw9d9n-footer-bottom-right {
            display: flex;
            gap: 24px;
            font-size: 12px;
        }

        .sw9d9n-footer-bottom-right a {
            color: #9aa0a6;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .sw9d9n-footer-bottom-right a:hover {
            color: #fff;
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            .sw9d9n-menu-toggle {
                display: flex;
            }

            .sw9d9n-nav-menu {
                display: none;
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background-color: #fff;
                flex-direction: column;
                padding: 24px;
                gap: 16px;
                border-bottom: 1px solid #dadce0;
                z-index: 999;
            }

            .sw9d9n-nav-menu.active {
                display: flex;
            }

            .sw9d9n-page-title {
                font-size: 32px;
            }

            .sw9d9n-page-subtitle {
                font-size: 16px;
            }

            .sw9d9n-feature-header {
                padding: 32px 24px;
            }

            .sw9d9n-detail-section {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .sw9d9n-detail-section:nth-child(even) .sw9d9n-detail-image {
                order: 0;
            }

            .sw9d9n-stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .sw9d9n-feature-nav {
                overflow-x: auto;
            }

            .sw9d9n-features-grid {
                grid-template-columns: 1fr;
            }

            .sw9d9n-detail-content h3 {
                font-size: 24px;
            }

            .sw9d9n-footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .sw9d9n-footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }

            .sw9d9n-footer-bottom-right {
                flex-direction: column;
                gap: 8px;
            }

            .sw9d9n-btn-secondary {
                margin-left: 0;
                margin-top: 12px;
                display: block;
            }
        }

        @media (max-width: 480px) {
            .sw9d9n-page-title {
                font-size: 24px;
            }

            .sw9d9n-detail-content h3 {
                font-size: 20px;
            }

            .sw9d9n-stats-grid {
                grid-template-columns: 1fr;
            }

            .sw9d9n-feature-nav {
                padding: 16px;
                gap: 12px;
            }

            .sw9d9n-features-grid {
                gap: 24px;
            }

            .sw9d9n-feature-card {
                padding: 24px;
            }

            .sw9d9n-stats-section {
                padding: 40px 20px;
            }

            .sw9d9n-nav {
                height: 56px;
                padding: 0 16px;
            }

            .sw9d9n-footer-grid {
                grid-template-columns: 1fr;
            }
        }