<style>
        :root {
            --primary: #1e6fff;
            --primary-dark: #1557c2;
            --bg: #f8faff;
            --surface: #ffffff;
            --text: #1a2332;
            --text-secondary: #4a5b6e;
            --border: #e8edf5;
            --shadow-sm: 0 2px 12px rgba(0,0,0,0.04);
            --shadow-md: 0 8px 28px rgba(0,0,0,0.06);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.08);
            --radius: 16px;
            --radius-sm: 10px;
            --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* 头部导航 */
        header {
            background: rgba(255,255,255,0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 0 24px;
        }
        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.3rem;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, #1e6fff 0%, #3a8cff 100%);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            box-shadow: 0 4px 12px rgba(30,111,255,0.3);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            font-weight: 500;
            font-size: 0.95rem;
        }
        .nav-links a:hover {
            color: var(--primary);
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            padding: 10px 22px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            box-shadow: 0 4px 14px rgba(30,111,255,0.35);
            transition: var(--transition);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 8px 24px rgba(30,111,255,0.4);
        }
        .btn-outline {
            border: 2px solid var(--primary);
            color: var(--primary);
            padding: 10px 24px;
            border-radius: 30px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
        }
        /* 通用版块 */
        section {
            padding: 64px 0;
        }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .section-title p {
            color: var(--text-secondary);
            font-size: 1.05rem;
        }
        /* Banner */
        .hero {
            background: linear-gradient(160deg, #f0f5ff 0%, #e8f0fe 40%, #f8faff 100%);
            padding: 80px 0 90px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 18px;
        }
        .hero .highlight {
            background: linear-gradient(135deg, #1e6fff, #4d94ff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: 1.2rem;
            color: var(--text-secondary);
            max-width: 680px;
            margin: 0 auto 28px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }
        .stats-row {
            display: flex;
            gap: 48px;
            justify-content: center;
            flex-wrap: wrap;
            color: var(--text-secondary);
        }
        .stat-item {
            text-align: center;
        }
        .stat-number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text);
        }
        .stars {
            color: #f5a623;
            font-size: 1.2rem;
        }
        /* 卡片网格 */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .card {
            background: var(--surface);
            border-radius: var(--radius);
            padding: 32px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .card-icon {
            width: 56px;
            height: 56px;
            background: #eef3ff;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            font-size: 1.6rem;
        }
        .card h3 {
            font-size: 1.2rem;
            margin-bottom: 8px;
        }
        .card p {
            color: var(--text-secondary);
            font-size: 0.9rem;
        }
        /* 版本列表 */
        .version-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 24px;
        }
        .version-item {
            background: var(--surface);
            border-radius: var(--radius);
            padding: 28px 20px;
            text-align: center;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .version-item:hover {
            box-shadow: var(--shadow-md);
        }
        .version-icon {
            font-size: 2.4rem;
            margin-bottom: 16px;
        }
        .version-item h4 {
            font-weight: 700;
            margin-bottom: 6px;
        }
        .version-item .btn-sm {
            margin-top: 14px;
            display: inline-block;
            background: var(--primary);
            color: #fff;
            padding: 8px 20px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
        }
        /* 定价 */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .pricing-card {
            background: var(--surface);
            border-radius: var(--radius);
            padding: 36px 28px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            text-align: center;
        }
        .pricing-card.featured {
            border-color: var(--primary);
            box-shadow: 0 12px 36px rgba(30,111,255,0.12);
        }
        .pricing-card h3 {
            font-size: 1.4rem;
            margin-bottom: 6px;
        }
        .price {
            font-size: 2.2rem;
            font-weight: 800;
            margin: 12px 0;
        }
        .features-list {
            list-style: none;
            text-align: left;
            margin-top: 20px;
        }
        .features-list li {
            padding: 6px 0;
            font-size: 0.9rem;
        }
        /* 步骤 */
        .steps {
            display: flex;
            gap: 32px;
            justify-content: center;
            flex-wrap: wrap;
            text-align: center;
        }
        .step {
            background: var(--surface);
            border-radius: var(--radius);
            padding: 28px 24px;
            flex: 1 1 180px;
            border: 1px solid var(--border);
        }
        .step-number {
            width: 44px;
            height: 44px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.2rem;
            margin-bottom: 14px;
        }
        /* 评论 */
        .reviews {
            display: flex;
            gap: 28px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .review-card {
            background: var(--surface);
            border-radius: var(--radius);
            padding: 28px;
            border: 1px solid var(--border);
            flex: 1 1 280px;
            box-shadow: var(--shadow-sm);
        }
        .review-stars {
            color: #f5a623;
            margin-bottom: 10px;
        }
        /* FAQ */
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 10px;
            overflow: hidden;
        }
        .faq-question {
            padding: 16px 20px;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            font-size: 0.95rem;
        }
        .faq-answer {
            padding: 0 20px 16px;
            color: var(--text-secondary);
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        /* 底部 */
        footer {
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 48px 0 32px;
            color: var(--text-secondary);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-col h4 {
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--text);
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col li {
            margin-bottom: 8px;
            font-size: 0.9rem;
        }
        .footer-bottom {
            text-align: center;
            font-size: 0.85rem;
            border-top: 1px solid var(--border);
            padding-top: 20px;
        }
        @media (max-width: 768px) {
            .cards-grid, .pricing-grid {
                grid-template-columns: 1fr;
            }
            .nav-links {
                display: none;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
        }
    </style>