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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f9fafb;
        }

        /* 导航栏样式 */
        .yewq9-navbar {
            background-color: #ffffff;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .yewq9-navbar-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }

        .yewq9-logo {
            display: flex;
            align-items: center;
            font-size: 24px;
            font-weight: 700;
            color: #0066cc;
            text-decoration: none;
        }

        .yewq9-logo img {
            height: 40px;
            margin-right: 12px;
        }

        .yewq9-nav-menu {
            display: flex;
            gap: 30px;
            list-style: none;
        }

        .yewq9-nav-link {
            color: #333;
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            transition: color 0.3s ease;
            position: relative;
        }

        .yewq9-nav-link:hover {
            color: #0066cc;
        }

        .yewq9-nav-link::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: #0066cc;
            transition: width 0.3s ease;
        }

        .yewq9-nav-link:hover::after {
            width: 100%;
        }

        /* 主容器 */
        .yewq9-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 英雄区域 */
        .yewq9-hero {
            background: linear-gradient(135deg, #0066cc 0%, #0052a3 100%);
            color: white;
            padding: 80px 20px;
            text-align: center;
            margin-bottom: 60px;
        }

        .yewq9-hero-content {
            max-width: 800px;
            margin: 0 auto;
        }

        .yewq9-hero h1 {
            font-size: 48px;
            font-weight: 700;
            margin-bottom: 20px;
            line-height: 1.2;
        }

        .yewq9-hero-subtitle {
            font-size: 20px;
            margin-bottom: 30px;
            opacity: 0.95;
            font-weight: 300;
        }

        .yewq9-hero-buttons {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .yewq9-btn-primary {
            background-color: #ffffff;
            color: #0066cc;
            padding: 14px 32px;
            font-size: 16px;
            font-weight: 600;
            border: none;
            border-radius: 6px;
            cursor: pointer;
            text-decoration: none;
            display: inline-block;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        }

        .yewq9-btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
        }

        .yewq9-btn-secondary {
            background-color: transparent;
            color: #ffffff;
            padding: 14px 32px;
            font-size: 16px;
            font-weight: 600;
            border: 2px solid #ffffff;
            border-radius: 6px;
            cursor: pointer;
            text-decoration: none;
            display: inline-block;
            transition: all 0.3s ease;
        }

        .yewq9-btn-secondary:hover {
            background-color: #ffffff;
            color: #0066cc;
            transform: translateY(-2px);
        }

        /* 特性区域 */
        .yewq9-features-section {
            padding: 60px 20px;
            margin-bottom: 60px;
        }

        .yewq9-section-title {
            font-size: 36px;
            font-weight: 700;
            text-align: center;
            margin-bottom: 50px;
            color: #1a1a1a;
        }

        .yewq9-features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .yewq9-feature-card {
            background: white;
            padding: 30px;
            border-radius: 8px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .yewq9-feature-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
        }

        .yewq9-feature-icon {
            font-size: 48px;
            margin-bottom: 20px;
            display: inline-block;
        }

        .yewq9-feature-title {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 15px;
            color: #0066cc;
        }

        .yewq9-feature-text {
            font-size: 14px;
            color: #666;
            line-height: 1.7;
        }

        /* 使用场景 */
        .yewq9-scenarios-section {
            background-color: #f0f5ff;
            padding: 60px 20px;
            margin-bottom: 60px;
        }

        .yewq9-scenarios-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
        }

        .yewq9-scenario-card {
            background: white;
            padding: 25px;
            border-radius: 8px;
            border-left: 4px solid #0066cc;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
        }

        .yewq9-scenario-title {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 12px;
            color: #1a1a1a;
        }

        .yewq9-scenario-text {
            font-size: 14px;
            color: #666;
            line-height: 1.6;
        }

        /* 对比优势 */
        .yewq9-comparison-section {
            padding: 60px 20px;
            margin-bottom: 60px;
        }

        .yewq9-comparison-table {
            width: 100%;
            border-collapse: collapse;
            background: white;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
            border-radius: 8px;
            overflow: hidden;
        }

        .yewq9-comparison-table th {
            background-color: #0066cc;
            color: white;
            padding: 20px;
            text-align: left;
            font-weight: 600;
        }

        .yewq9-comparison-table td {
            padding: 18px 20px;
            border-bottom: 1px solid #eee;
        }

        .yewq9-comparison-table tr:last-child td {
            border-bottom: none;
        }

        .yewq9-comparison-table tr:nth-child(even) {
            background-color: #f9fafb;
        }

        .yewq9-comparison-feature {
            font-weight: 500;
            color: #1a1a1a;
        }

        .yewq9-check-icon {
            color: #00aa00;
            font-weight: 700;
        }

        .yewq9-cross-icon {
            color: #cc0000;
        }

        /* CTA区域 */
        .yewq9-cta-section {
            background: linear-gradient(135deg, #0066cc 0%, #0052a3 100%);
            color: white;
            padding: 60px 20px;
            text-align: center;
            margin-bottom: 60px;
            border-radius: 8px;
        }

        .yewq9-cta-title {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .yewq9-cta-text {
            font-size: 16px;
            margin-bottom: 30px;
            opacity: 0.95;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        /* 页脚 */
        .yewq9-footer {
            background-color: #1a1a1a;
            color: #ccc;
            padding: 40px 20px;
            border-top: 1px solid #333;
        }

        .yewq9-footer-content {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }

        .yewq9-footer-section h4 {
            color: white;
            margin-bottom: 15px;
            font-size: 16px;
        }

        .yewq9-footer-link {
            display: block;
            color: #ccc;
            text-decoration: none;
            font-size: 14px;
            margin-bottom: 10px;
            transition: color 0.3s ease;
        }

        .yewq9-footer-link:hover {
            color: #0066cc;
        }

        .yewq9-footer-bottom {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #333;
            font-size: 14px;
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            .yewq9-navbar-container {
                padding: 0 15px;
            }

            .yewq9-nav-menu {
                gap: 15px;
            }

            .yewq9-nav-link {
                font-size: 12px;
            }

            .yewq9-hero {
                padding: 50px 20px;
            }

            .yewq9-hero h1 {
                font-size: 32px;
            }

            .yewq9-hero-subtitle {
                font-size: 16px;
            }

            .yewq9-hero-buttons {
                flex-direction: column;
                align-items: center;
            }

            .yewq9-btn-primary,
            .yewq9-btn-secondary {
                width: 100%;
                max-width: 300px;
            }

            .yewq9-section-title {
                font-size: 28px;
            }

            .yewq9-features-grid {
                grid-template-columns: 1fr;
            }

            .yewq9-cta-title {
                font-size: 24px;
            }

            .yewq9-comparison-table {
                font-size: 14px;
            }

            .yewq9-comparison-table th,
            .yewq9-comparison-table td {
                padding: 12px 15px;
            }
        }

        @media (max-width: 480px) {
            .yewq9-nav-menu {
                gap: 10px;
            }

            .yewq9-hero h1 {
                font-size: 24px;
            }

            .yewq9-hero-subtitle {
                font-size: 14px;
            }

            .yewq9-section-title {
                font-size: 22px;
                margin-bottom: 30px;
            }

            .yewq9-feature-title {
                font-size: 18px;
            }

            .yewq9-cta-title {
                font-size: 20px;
            }
        }

        /* 辅助类 */
        .yewq9-highlight {
            color: #0066cc;
            font-weight: 600;
        }

        .yewq9-text-center {
            text-align: center;
        }

        .yewq9-margin-top {
            margin-top: 20px;
        }