<style>
        /* 全局样式与变量 */
        :root {
            --primary: #1a73e8;
            --primary-dark: #1557b0;
            --secondary: #ea4335;
            --accent-green: #34a853;
            --accent-yellow: #fbbc05;
            --gray-50: #f8f9fa;
            --gray-100: #f1f3f4;
            --gray-600: #5f6368;
            --gray-900: #202124;
            --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);
        }
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body { font-family: 'Google Sans', 'Roboto', Arial, sans-serif; line-height: 1.5; color: var(--gray-900); background: #fff; }
        .container { max-width: 1280px; margin: 0 auto; padding: 0 20px; }
        
        /* 头部与导航 */
        .header { background: #fff; box-shadow: var(--shadow-sm); position: sticky; top: 0; z-index: 100; }
        .nav { display: flex; justify-content: space-between; align-items: center; padding: 12px 0; flex-wrap: wrap; gap: 15px; }
        .logo { display: flex; align-items: center; text-decoration: none; font-weight: 500; font-size: 1.5rem; color: var(--gray-900); }
        .logo svg { width: 36px; height: 36px; margin-right: 8px; }
        .nav-links { display: flex; gap: 24px; align-items: center; }
        .nav-links a { text-decoration: none; color: var(--gray-900); font-weight: 500; transition: color 0.2s; }
        .nav-links a:hover { color: var(--primary); }
        .btn { display: inline-block; padding: 10px 20px; border-radius: 4px; font-weight: 500; text-decoration: none; transition: all 0.2s; cursor: pointer; border: none; }
        .btn-primary { background: var(--primary); color: white; }
        .btn-primary:hover { background: var(--primary-dark); box-shadow: var(--shadow-md); }
        .btn-outline { border: 1px solid var(--gray-600); color: var(--gray-900); }
        .btn-outline:hover { background: var(--gray-100); }
        
        /* 横幅区域 */
        .hero { background: linear-gradient(135deg, #e8f0fe 0%, #d2e3fc 100%); padding: 80px 0; text-align: center; }
        .hero-content { max-width: 800px; margin: 0 auto; }
        .hero h1 { font-size: 3rem; margin-bottom: 20px; color: var(--gray-900); }
        .hero p { font-size: 1.25rem; color: var(--gray-600); margin-bottom: 30px; }
        .stats { display: flex; justify-content: center; gap: 40px; margin-top: 40px; }
        .stat-item { text-align: center; }
        .stat-value { font-size: 2rem; font-weight: 700; color: var(--primary); }
        .stat-label { color: var(--gray-600); }
        
        /* 通用区块 */
        .section { padding: 60px 0; }
        .section-title { font-size: 2.2rem; text-align: center; margin-bottom: 40px; color: var(--gray-900); }
        .card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
        .card { background: #fff; padding: 24px; border-radius: 12px; box-shadow: var(--shadow-md); border: 1px solid var(--gray-100); }
        .card h3 { margin-bottom: 12px; color: var(--primary); }
        
        /* 表格 */
        .comparison-table { width: 100%; border-collapse: collapse; margin-top: 20px; }
        .comparison-table th, .comparison-table td { padding: 16px; text-align: left; border-bottom: 1px solid var(--gray-100); }
        .comparison-table th { background: var(--gray-50); font-weight: 600; }
        .vs-win { color: var(--accent-green); font-weight: 500; }
        .vs-neutral { color: var(--accent-yellow); }
        
        /* 问答折叠 */
        .faq-item { border-bottom: 1px solid var(--gray-100); }
        .faq-question { padding: 16px; font-weight: 500; cursor: pointer; display: flex; justify-content: space-between; background: #fff; }
        .faq-answer { padding: 0 16px 16px; color: var(--gray-600); display: none; }
        .faq-item.active .faq-answer { display: block; }
        .faq-question::after { content: "▼"; font-size: 0.8rem; color: var(--gray-600); }
        .faq-item.active .faq-question::after { content: "▲"; }
        
        /* 底部 */
        .footer { background: var(--gray-50); padding: 40px 0; border-top: 1px solid var(--gray-100); }
        .footer-content { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 30px; }
        .footer a { text-decoration: none; color: var(--gray-600); display: block; margin-bottom: 8px; }
        .footer a:hover { color: var(--primary); }
        .copyright { text-align: center; margin-top: 40px; color: var(--gray-600); }
        
        /* 响应式 */
        @media (max-width: 768px) {
            .hero h1 { font-size: 2rem; }
            .stats { flex-direction: column; gap: 20px; }
            .nav { flex-direction: column; }
        }
        /* 修复后的下载CTA版块 - 宽度与上方版块一致 */
        .download-cta {
            margin: 40px 0;
        }
        .download-cta-inner {
            background: var(--primary);
            color: white;
            padding: 48px 24px;
            border-radius: 16px;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 20px;
        }
        .download-cta h3 { font-size: 1.8rem; margin-bottom: 0; }
        .btn-large { padding: 14px 32px; font-size: 1.1rem; }
        .testimonials { display: flex; gap: 24px; justify-content: center; }
        .testimonial-card { background: #fff; padding: 20px; border-radius: 8px; box-shadow: var(--shadow-md); flex: 1; text-align: center; }
        .stars { color: var(--accent-yellow); font-size: 1.5rem; margin-bottom: 10px; }
    </style>