<style>
        :root {
            --bg-warm: #f9f7f3;
            --bg-white: #ffffff;
            --bg-deep: #1b1e2f;
            --bg-deep2: #23273a;
            --gold: #c8a55e;
            --gold-light: #dcc08a;
            --gold-dark: #a8853d;
            --text-dark: #2c2c2c;
            --text-mid: #5a5a5a;
            --text-light: #7a7a7a;
            --text-on-dark: #e8e6e0;
            --border-soft: #e5e0d8;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.07);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
        }

        * { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; font-size: 16px; }
        body {
            font-family: var(--font-body);
            background-color: var(--bg-warm);
            color: var(--text-dark);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            letter-spacing: 0.02em;
        }

        .site-header {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-soft);
            position: sticky; top: 0; z-index: 1000;
            box-shadow: var(--shadow-sm);
        }
        .header-inner {
            max-width: 1280px; margin: 0 auto; padding: 0 28px;
            display: flex; align-items: center; justify-content: space-between; height: 66px;
        }
        .logo-area { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--text-dark); }
        .logo-icon {
            width: 42px; height: 42px;
            background: linear-gradient(135deg, #1b1e2f 0%, #2a2f4a 100%);
            border-radius: var(--radius-sm);
            display: flex; align-items: center; justify-content: center;
            box-shadow: 0 2px 8px rgba(27,30,47,0.2);
        }
        .logo-icon svg { width: 24px; height: 24px; }
        .logo-text { font-family: var(--font-heading); font-size: 1.5rem; font-weight: 700; color: #1b1e2f; }
        .logo-text span { color: var(--gold-dark); }
        .nav-links { display: flex; align-items: center; gap: 32px; list-style: none; }
        .nav-links a {
            text-decoration: none; color: var(--text-mid); font-weight: 500; font-size: 0.95rem;
            transition: var(--transition); position: relative; padding: 4px 0;
        }
        .nav-links a::after {
            content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 2px;
            background: var(--gold); border-radius: 2px; transition: var(--transition);
        }
        .nav-links a:hover, .nav-links a.active { color: #1b1e2f; }
        .nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
        .btn-nav-download {
            background: linear-gradient(135deg, #1b1e2f 0%, #2a2f4a 100%);
            color: #fff !important; padding: 10px 22px !important; border-radius: 24px;
            font-weight: 600 !important; font-size: 0.9rem !important;
            box-shadow: 0 3px 12px rgba(27,30,47,0.25); white-space: nowrap;
        }
        .btn-nav-download:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(27,30,47,0.35); }
        .btn-nav-download::after { display: none !important; }
        .mobile-menu-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; flex-direction: column; gap: 5px; }
        .mobile-menu-toggle span { display: block; width: 26px; height: 2.5px; background: #1b1e2f; border-radius: 3px; transition: var(--transition); }

        .site-footer {
            background: #1b1e2f; color: var(--text-on-dark); padding: 56px 0 28px; margin-top: 60px;
        }
        .footer-inner {
            max-width: 1280px; margin: 0 auto; padding: 0 28px;
            display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 40px;
        }
        .footer-col h4 { font-family: var(--font-heading); font-size: 1.05rem; font-weight: 600; margin-bottom: 18px; color: #ffffff; }
        .footer-col p, .footer-col a { color: #bfbbb2; font-size: 0.9rem; line-height: 2; text-decoration: none; transition: var(--transition); display: block; }
        .footer-col a:hover { color: var(--gold-light); }
        .footer-bottom {
            max-width: 1280px; margin: 32px auto 0; padding: 20px 28px 0;
            border-top: 1px solid rgba(255,255,255,0.1); text-align: center;
            font-size: 0.85rem; color: #8a8780;
        }
        .footer-logo-sm { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
        .footer-logo-sm .logo-icon { width: 34px; height: 34px; border-radius: 6px; }
        .footer-logo-sm span { font-weight: 700; font-size: 1.2rem; color: #fff; }

        .section-container { max-width: 1280px; margin: 0 auto; padding: 0 28px; }
        .section-padding { padding: 64px 0; }
        .section-padding-lg { padding: 80px 0; }
        .section-label { display: inline-block; font-size: 0.85rem; font-weight: 600; letter-spacing: 0.06em; color: var(--gold-dark); text-transform: uppercase; margin-bottom: 10px; }
        .section-title { font-family: var(--font-heading); font-size: 2.4rem; font-weight: 700; color: #1b1e2f; margin-bottom: 14px; line-height: 1.3; }
        .section-subtitle { font-size: 1.1rem; color: var(--text-mid); max-width: 680px; line-height: 1.7; }
        .text-center { text-align: center; }
        .mx-auto { margin-left: auto; margin-right: auto; }

        .btn {
            display: inline-block; padding: 14px 32px; border-radius: 28px; font-weight: 600;
            font-size: 1rem; text-decoration: none; cursor: pointer; transition: var(--transition);
            letter-spacing: 0.03em; border: none; font-family: var(--font-body);
        }
        .btn-primary { background: linear-gradient(135deg, #1b1e2f 0%, #2a2f4a 100%); color: #fff; box-shadow: 0 4px 16px rgba(27,30,47,0.3); }
        .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(27,30,47,0.4); }
        .btn-gold { background: linear-gradient(135deg, #c8a55e 0%, #dcc08a 100%); color: #1b1e2f; box-shadow: 0 4px 16px rgba(200,165,94,0.3); }
        .btn-gold:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(200,165,94,0.45); }
        .btn-outline { background: transparent; border: 2px solid #d0ccc4; color: #1b1e2f; }
        .btn-outline:hover { border-color: #1b1e2f; background: rgba(27,30,47,0.03); }
        .btn-lg { padding: 16px 40px; font-size: 1.1rem; border-radius: 32px; }

        .hero-section {
            background: linear-gradient(170deg, #f9f7f3 0%, #f0ede6 30%, #e8e4da 100%);
            padding: 80px 0 70px; position: relative; overflow: hidden;
        }
        .hero-section::before {
            content: ''; position: absolute; top: -120px; right: -180px; width: 600px; height: 600px;
            background: radial-gradient(circle, rgba(200,165,94,0.12) 0%, transparent 70%); border-radius: 50%; pointer-events: none;
        }
        .hero-section::after {
            content: ''; position: absolute; bottom: -80px; left: -100px; width: 400px; height: 400px;
            background: radial-gradient(circle, rgba(27,30,47,0.05) 0%, transparent 70%); border-radius: 50%; pointer-events: none;
        }
        .hero-inner { max-width: 1280px; margin: 0 auto; padding: 0 28px; display: flex; align-items: center; gap: 50px; position: relative; z-index: 1; }
        .hero-content { flex: 1; }
        .hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,0.7); border: 1px solid var(--border-soft); border-radius: 24px; padding: 8px 18px; font-size: 0.9rem; font-weight: 500; color: var(--text-mid); margin-bottom: 20px; }
        .hero-badge .dot { width: 9px; height: 9px; background: #4caf84; border-radius: 50%; animation: pulse-dot 2s infinite; }
        @keyframes pulse-dot { 0%,100% { box-shadow: 0 0 0 0 rgba(76,175,132,0.5); } 50% { box-shadow: 0 0 0 10px rgba(76,175,132,0); } }
        .hero-content h1 { font-family: var(--font-heading); font-size: 3.2rem; font-weight: 700; color: #1b1e2f; line-height: 1.2; margin-bottom: 16px; }
        .hero-content h1 .highlight { color: var(--gold-dark); }
        .hero-content .hero-desc { font-size: 1.15rem; color: var(--text-mid); margin-bottom: 28px; max-width: 520px; line-height: 1.8; }
        .hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }
        .hero-visual { flex: 0 0 420px; background: rgba(255,255,255,0.55); backdrop-filter: blur(12px); border-radius: var(--radius-xl); padding: 36px; box-shadow: var(--shadow-xl); border: 1px solid rgba(255,255,255,0.6); text-align: center; }
        .hero-visual .shield-icon { width: 90px; height: 90px; margin: 0 auto 20px; background: linear-gradient(135deg, #1b1e2f 0%, #2a2f4a 100%); border-radius: 50%; display: flex; align-items: center; justify-content: center; box-shadow: 0 8px 28px rgba(27,30,47,0.25); }
        .hero-visual .shield-icon svg { width: 44px; height: 44px; }
        .hero-visual h3 { font-family: var(--font-heading); font-size: 1.3rem; font-weight: 600; color: #1b1e2f; margin-bottom: 8px; }
        .hero-visual .stat-row { display: flex; justify-content: center; gap: 28px; margin-top: 20px; }
        .hero-visual .stat-item { text-align: center; }
        .hero-visual .stat-num { font-size: 2rem; font-weight: 700; color: #1b1e2f; font-family: var(--font-heading); }
        .hero-visual .stat-label { font-size: 0.8rem; color: var(--text-light); }

        .features-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 28px; }
        .feature-card {
            background: #fff; border-radius: var(--radius-lg); padding: 32px 28px;
            box-shadow: var(--shadow-md); border: 1px solid var(--border-soft); transition: var(--transition);
            position: relative; overflow: hidden;
        }
        .feature-card::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 4px; background: linear-gradient(90deg, #c8a55e 0%, #dcc08a 100%); opacity: 0; transition: var(--transition); }
        .feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
        .feature-card:hover::before { opacity: 1; }
        .feature-icon { width: 52px; height: 52px; background: #f7f5f0; border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; margin-bottom: 18px; }
        .feature-icon svg { width: 26px; height: 26px; }
        .feature-card h3 { font-family: var(--font-heading); font-size: 1.2rem; font-weight: 600; color: #1b1e2f; margin-bottom: 8px; }
        .feature-card p { font-size: 0.95rem; color: var(--text-mid); line-height: 1.7; }

        .stats-section { background: #1b1e2f; color: #fff; padding: 60px 0; position: relative; overflow: hidden; }
        .stats-section::before { content: ''; position: absolute; top: -60px; right: -120px; width: 350px; height: 350px; background: radial-gradient(circle, rgba(200,165,94,0.15) 0%, transparent 70%); border-radius: 50%; pointer-events: none; }
        .stats-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; text-align: center; position: relative; z-index: 1; }
        .stat-card { padding: 24px; }
        .stat-card .num { font-size: 2.8rem; font-weight: 700; font-family: var(--font-heading); color: var(--gold-light); }
        .stat-card .lbl { font-size: 0.95rem; color: #bfbbb2; margin-top: 6px; }

        /* 用户评论 */
        .comments-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
        .comment-card { background: #fff; border-radius: var(--radius-lg); padding: 28px 24px; box-shadow: var(--shadow-md); border: 1px solid var(--border-soft); transition: var(--transition); display: flex; flex-direction: column; }
        .comment-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
        .comment-stars { color: #f0b90b; font-size: 1rem; margin-bottom: 12px; letter-spacing: 2px; }
        .comment-text { font-size: 0.95rem; color: var(--text-mid); line-height: 1.7; margin-bottom: 18px; font-style: italic; flex: 1; }
        .comment-user { display: flex; align-items: center; gap: 10px; margin-top: auto; }
        .comment-avatar { width: 40px; height: 40px; border-radius: 50%; background: #e0dbd0; display: flex; align-items: center; justify-content: center; font-weight: 700; color: #1b1e2f; font-size: 1rem; }
        .comment-name { font-weight: 600; color: #1b1e2f; font-size: 0.9rem; }

        /* 版本选择 */
        .version-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
        .version-card { background: #fff; border-radius: var(--radius-lg); padding: 28px 18px; text-align: center; box-shadow: var(--shadow-md); border: 1px solid var(--border-soft); transition: var(--transition); }
        .version-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
        .version-icon { font-size: 2.2rem; margin-bottom: 10px; }
        .version-card h3 { font-family: var(--font-heading); font-weight: 600; color: #1b1e2f; margin-bottom: 4px; }
        .version-card .ver { font-size: 0.8rem; color: var(--text-light); margin-bottom: 14px; }
        .version-card .btn { width: 100%; }

        /* 套餐选择版块 */
        .pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
        .pricing-card {
            background: #fff; border-radius: var(--radius-xl); padding: 40px 32px;
            box-shadow: var(--shadow-md); border: 1px solid var(--border-soft); transition: var(--transition);
            position: relative; overflow: hidden; text-align: center;
        }
        .pricing-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-xl); }
        .pricing-card.popular { border: 2px solid var(--gold); transform: scale(1.02); }
        .pricing-card.popular:hover { transform: scale(1.02) translateY(-6px); }
        .popular-badge { position: absolute; top: 18px; right: -36px; background: var(--gold); color: #1b1e2f; font-weight: 700; font-size: 0.8rem; padding: 6px 48px; transform: rotate(45deg); }
        .pricing-name { font-family: var(--font-heading); font-size: 1.5rem; font-weight: 700; color: #1b1e2f; margin-bottom: 8px; }
        .pricing-desc { font-size: 0.9rem; color: var(--text-mid); margin-bottom: 20px; }
        .pricing-features { list-style: none; text-align: left; margin-bottom: 28px; }
        .pricing-features li { padding: 8px 0; color: var(--text-mid); font-size: 0.95rem; display: flex; align-items: center; gap: 8px; border-bottom: 1px solid var(--border-soft); }
        .pricing-features li:last-child { border-bottom: none; }
        .pricing-features li::before { content: '✓'; color: var(--gold-dark); font-weight: 700; }
        .pricing-price { font-family: var(--font-heading); font-size: 2.4rem; font-weight: 700; color: #1b1e2f; margin-bottom: 20px; }
        .pricing-price span { font-size: 1rem; font-weight: 400; color: var(--text-light); }

        .steps-row { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; }
        .step-card { text-align: center; padding: 28px 20px; background: #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow-md); border: 1px solid var(--border-soft); transition: var(--transition); }
        .step-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
        .step-number { width: 48px; height: 48px; border-radius: 50%; background: linear-gradient(135deg, #1b1e2f 0%, #2a2f4a 100%); color: #fff; font-weight: 700; font-size: 1.3rem; display: flex; align-items: center; justify-content: center; margin: 0 auto 14px; font-family: var(--font-heading); }
        .step-card h4 { font-family: var(--font-heading); font-weight: 600; color: #1b1e2f; margin-bottom: 6px; }
        .step-card p { font-size: 0.9rem; color: var(--text-mid); }

        .cta-banner { background: linear-gradient(150deg, #f7f5f0 0%, #ede8dd 100%); border-radius: var(--radius-xl); padding: 50px 40px; text-align: center; border: 1px solid var(--border-soft); box-shadow: var(--shadow-md); }
        .cta-banner h2 { font-family: var(--font-heading); font-size: 2rem; font-weight: 700; color: #1b1e2f; margin-bottom: 10px; }
        .cta-banner p { color: var(--text-mid); margin-bottom: 22px; font-size: 1.05rem; }

        .faq-preview-list { display: grid; gap: 12px; max-width: 800px; margin: 0 auto; }
        .faq-preview-item { background: #fff; border-radius: var(--radius-md); padding: 18px 24px; border: 1px solid var(--border-soft); cursor: pointer; transition: var(--transition); box-shadow: var(--shadow-sm); }
        .faq-preview-item:hover { box-shadow: var(--shadow-md); border-color: #d0ccc4; }
        .faq-preview-item h4 { font-weight: 600; color: #1b1e2f; font-size: 1rem; font-family: var(--font-heading); }
        .faq-preview-item p { font-size: 0.9rem; color: var(--text-mid); margin-top: 6px; }

        @media (max-width: 1024px) {
            .hero-inner { flex-direction: column; text-align: center; }
            .hero-content .hero-desc { max-width: 100%; margin-left: auto; margin-right: auto; }
            .hero-buttons { justify-content: center; }
            .hero-visual { flex: 0 0 auto; width: 100%; max-width: 450px; }
            .features-grid { grid-template-columns: repeat(2,1fr); }
            .steps-row { grid-template-columns: repeat(2,1fr); }
            .stats-grid { grid-template-columns: repeat(2,1fr); }
            .comments-grid { grid-template-columns: repeat(2,1fr); }
            .version-grid { grid-template-columns: repeat(2,1fr); }
            .pricing-grid { grid-template-columns: repeat(2,1fr); }
            .footer-inner { grid-template-columns: repeat(2,1fr); }
            .section-title { font-size: 1.9rem; }
            .hero-content h1 { font-size: 2.4rem; }
        }
        @media (max-width: 640px) {
            .nav-links { display: none; position: absolute; top: 66px; left: 0; right: 0; background: #fff; flex-direction: column; padding: 20px; gap: 14px; box-shadow: var(--shadow-lg); border-bottom: 1px solid var(--border-soft); }
            .nav-links.open { display: flex; }
            .mobile-menu-toggle { display: flex; }
            .features-grid { grid-template-columns: 1fr; }
            .steps-row { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: 1fr 1fr; }
            .comments-grid { grid-template-columns: 1fr; }
            .version-grid { grid-template-columns: 1fr; }
            .pricing-grid { grid-template-columns: 1fr; }
            .footer-inner { grid-template-columns: 1fr; gap: 24px; }
            .section-title { font-size: 1.6rem; }
            .hero-content h1 { font-size: 1.9rem; }
            .hero-visual { max-width: 100%; }
            .cta-banner { padding: 30px 20px; }
            .cta-banner h2 { font-size: 1.5rem; }
            .section-padding { padding: 40px 0; }
            .section-padding-lg { padding: 50px 0; }
        }
    </style>