<style>
        *{margin:0;padding:0;box-sizing:border-box;font-family:system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;}
        body{background:#fff;color:#1e1e1e;line-height:1.5;}
        .container{max-width:1280px;margin:0 auto;padding:0 20px;}
        /* 橙黄色系 */
        :root{--primary:#f90;--primary-dark:#e68a00;--primary-light:#fff3e0;--gold:#fc0;}
        .btn{display:inline-block;background:var(--primary);color:#fff;font-weight:600;padding:12px 28px;border-radius:40px;text-decoration:none;transition:0.2s;border:none;cursor:pointer;font-size:1.1rem;box-shadow:0 4px 12px rgba(255,153,0,0.3);}
        .btn:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 8px 20px rgba(255,153,0,0.4);}
        .btn-outline{background:transparent;border:2px solid var(--primary);color:var(--primary);box-shadow:none;}
        .btn-outline:hover{background:var(--primary);color:#fff;}
        /* 头部 */
        .header{background:#fff;box-shadow:0 2px 10px rgba(0,0,0,0.05);position:sticky;top:0;z-index:100;}
        .header .container{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;}
        .logo{display:flex;align-items:center;gap:10px;font-size:1.8rem;font-weight:700;color:#1e1e1e;text-decoration:none;}
        .logo-icon{background:var(--primary);width:48px;height:48px;border-radius:14px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:28px;font-weight:700;}
        .nav{display:flex;gap:28px;font-weight:500;}
        .nav a{text-decoration:none;color:#333;font-size:1.1rem;}
        .nav a:hover{color:var(--primary);}
        .header-right{display:flex;align-items:center;gap:16px;}
        /* 底部 */
        .footer{background:#1e1e1e;color:#aaa;padding:48px 0 24px;margin-top:60px;}
        .footer-content{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;}
        .footer-desc{font-size:1rem;line-height:1.7;}
        .footer h4{color:#fff;margin-bottom:16px;font-size:1.2rem;}
        .footer ul{list-style:none;}
        .footer li{margin-bottom:10px;}
        .footer a{color:#aaa;text-decoration:none;font-size:1rem;}
        .footer a:hover{color:var(--primary);}
        .copyright{text-align:center;padding-top:32px;margin-top:32px;border-top:1px solid #333;font-size:0.95rem;}
        /* 通用 */
        h1{font-size:2.8rem;font-weight:700;line-height:1.2;margin-bottom:20px;}
        h2{font-size:2.2rem;font-weight:700;margin-bottom:32px;text-align:center;}
        h3{font-size:1.5rem;font-weight:600;margin-bottom:16px;}
        .section{padding:64px 0;}
        .bg-light{background:var(--primary-light);}
        .text-center{text-align:center;}
        .grid-2{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
        .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
        .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
        .grid-6{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
        /* Banner */
        .hero{background:linear-gradient(135deg,var(--primary) 0%,#ffb84d 100%);padding:64px 0;color:#fff;}
        .hero h1{color:#fff;font-size:3.2rem;}
        .hero .btn{background:#fff;color:var(--primary);box-shadow:0 8px 24px rgba(0,0,0,0.15);margin-right:16px;}
        .hero .btn-outline{border-color:#fff;color:#fff;background:transparent;}
        .hero .btn-outline:hover{background:#fff;color:var(--primary);}
        .hero-stats{display:flex;gap:32px;margin-top:32px;}
        .stat-item{text-align:center;}
        .stat-num{font-size:2.2rem;font-weight:700;}
        .hero-image{background:#fff3e0;border-radius:24px;height:280px;display:flex;align-items:center;justify-content:center;color:#666;font-size:1.2rem;box-shadow:0 20px 40px rgba(0,0,0,0.1);}
        /* 功能卡片 */
        .feature-card{background:#fff;padding:28px 20px;border-radius:20px;text-align:center;box-shadow:0 4px 16px rgba(0,0,0,0.05);transition:0.2s;}
        .feature-card:hover{transform:translateY(-6px);box-shadow:0 12px 28px rgba(255,153,0,0.15);}
        .feature-icon{background:var(--primary-light);width:72px;height:72px;border-radius:20px;display:flex;align-items:center;justify-content:center;margin:0 auto 20px;color:var(--primary);font-size:36px;}
        .feature-card h3{font-size:1.3rem;margin-bottom:10px;}
        /* AI体验 */
        .ai-block{padding:32px 0;}
        .ai-image{background:var(--primary-light);border-radius:24px;height:260px;display:flex;align-items:center;justify-content:center;color:#666;font-size:1.1rem;}
        .check-list{list-style:none;margin-top:20px;}
        .check-list li{margin-bottom:12px;font-size:1.1rem;display:flex;align-items:center;gap:10px;}
        .check-list li::before{content:"✓";color:var(--primary);font-weight:700;font-size:1.3rem;}
        /* 下载版本卡片 */
        .download-card{background:#fff;padding:28px;border-radius:20px;text-align:center;box-shadow:0 4px 16px rgba(0,0,0,0.05);}
        .download-icon{background:var(--primary);width:64px;height:64px;border-radius:18px;display:flex;align-items:center;justify-content:center;margin:0 auto 20px;color:#fff;font-size:30px;}
        .download-card h3{font-size:1.3rem;}
        .version-tag{color:#888;font-size:0.95rem;margin:12px 0;}
        /* FAQ折叠 */
        .faq-item{border-bottom:1px solid #eee;}
        .faq-question{width:100%;text-align:left;padding:20px 0;font-size:1.2rem;font-weight:500;background:none;border:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;}
        .faq-question span:first-child{display:flex;align-items:center;gap:16px;}
        .faq-num{color:var(--primary);font-weight:700;font-size:1.3rem;}
        .faq-answer{padding:0 0 20px 52px;color:#555;font-size:1.1rem;display:none;}
        .faq-item.active .faq-answer{display:block;}
        .faq-toggle{font-size:1.8rem;color:var(--primary);}
        /* 步骤 */
        .step-card{text-align:center;padding:24px;}
        .step-num{background:var(--primary);width:56px;height:56px;border-radius:28px;display:flex;align-items:center;justify-content:center;margin:0 auto 20px;color:#fff;font-size:24px;font-weight:700;}
        /* 评论 */
        .review-card{background:#fff;padding:28px;border-radius:20px;box-shadow:0 4px 16px rgba(0,0,0,0.05);}
        .stars{color:var(--gold);font-size:1.3rem;margin-bottom:12px;}
        /* 数据背书 */
        .stats-bar{display:flex;justify-content:space-around;flex-wrap:wrap;background:#fff;padding:40px;border-radius:24px;box-shadow:0 4px 20px rgba(0,0,0,0.05);}
        .stat-block{text-align:center;}
        .stat-value{font-size:2.8rem;font-weight:700;color:var(--primary);}
        /* 新闻 */
        .news-card{background:#fff;border-radius:20px;overflow:hidden;box-shadow:0 4px 16px rgba(0,0,0,0.05);}
        .news-img{height:160px;background:var(--primary-light);display:flex;align-items:center;justify-content:center;color:#888;}
        .news-content{padding:20px;}
        .news-date{color:#999;font-size:0.9rem;margin:8px 0;}
        /* CTA */
        .cta-section{background:linear-gradient(135deg,var(--primary) 0%,#ffb84d 100%);padding:56px;border-radius:32px;color:#fff;display:flex;align-items:center;justify-content:space-between;}
        .cta-section h2{color:#fff;margin-bottom:12px;text-align:left;}
        .cta-section .btn{background:#fff;color:var(--primary);}
        /* 响应式 */
        @media (max-width:768px){
            .header .container{flex-wrap:wrap;}
            .nav{order:3;width:100%;justify-content:center;margin-top:12px;gap:16px;flex-wrap:wrap;}
            h1{font-size:2rem;} h2{font-size:1.8rem;}
            .grid-2,.grid-3,.grid-4,.grid-6{grid-template-columns:1fr;}
            .footer-content{grid-template-columns:1fr;gap:24px;}
            .hero .btn{display:block;margin:0 0 12px 0;text-align:center;}
            .cta-section{flex-direction:column;text-align:center;}
        }
    </style>