<style id="main-styles">
        /* 全局重置与变量 - 精简高效 */
        *{margin:0;padding:0;box-sizing:border-box;}
        :root{--primary:#1e6fff;--primary-dark:#0052cc;--gray-50:#f8fafc;--gray-100:#f1f5f9;--gray-600:#475569;--gray-800:#1e293b;--shadow-sm:0 1px 3px rgba(0,0,0,0.1);--shadow-md:0 10px 25px -5px rgba(0,0,0,0.1),0 8px 10px -6px rgba(0,0,0,0.02);--shadow-lg:0 20px 40px -12px rgba(0,0,0,0.15);--rounded:16px;--rounded-lg:24px;}
        body{font-family:system-ui,-apple-system,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--gray-800);background:#fff;line-height:1.6;font-size:18px;}
        .container{max-width:1280px;margin:0 auto;padding:0 24px;}
        /* 头部导航 */
        header{border-bottom:1px solid #eef2f6;background:#fff;position:sticky;top:0;z-index:50;}
        .header-inner{display:flex;align-items:center;justify-content:space-between;padding:16px 0;flex-wrap:wrap;gap:16px;}
        .logo-area{display:flex;align-items:center;gap:12px;}
        .logo-icon{font-size:32px;line-height:1;}
        .logo-text{font-size:28px;font-weight:700;letter-spacing:-0.01em;}
        .logo-text span{background:linear-gradient(135deg,var(--primary) 0%,#003d99 100%);-webkit-background-clip:text;background-clip:text;color:transparent;}
        nav{display:flex;gap:32px;font-weight:500;}
        nav a{text-decoration:none;color:var(--gray-800);font-size:20px;transition:color 0.2s;}
        nav a:hover{color:var(--primary);}
        .btn-download-header{background:var(--primary);color:#fff;border:none;padding:12px 28px;border-radius:40px;font-weight:600;font-size:20px;cursor:pointer;transition:background 0.2s;box-shadow:var(--shadow-sm);}
        .btn-download-header:hover{background:var(--primary-dark);}
        /* 按钮通用 */
        .btn{display:inline-block;background:var(--primary);color:#fff;padding:14px 36px;border-radius:40px;font-weight:600;text-decoration:none;font-size:20px;box-shadow:var(--shadow-sm);transition:all 0.2s;}
        .btn:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-md);}
        .btn-outline{background:transparent;border:2px solid var(--primary);color:var(--primary);}
        .btn-outline:hover{background:var(--primary);color:#fff;}
        /* Banner */
        .hero{background:linear-gradient(145deg, #f0f7ff 0%, #e6f0fe 100%);padding:60px 0;}
        .hero-grid{display:flex;align-items:center;gap:48px;flex-wrap:wrap;}
        .hero-content{flex:1;min-width:300px;}
        .hero h1{font-size:56px;font-weight:800;line-height:1.2;margin-bottom:24px;letter-spacing:-0.02em;}
        .hero h1 span{color:var(--primary);}
        .hero p{font-size:22px;color:var(--gray-600);margin-bottom:32px;}
        .hero-stats{display:flex;gap:40px;margin:40px 0 24px;flex-wrap:wrap;}
        .stat-item{display:flex;flex-direction:column;}
        .stat-num{font-size:42px;font-weight:800;color:var(--primary);}
        .stat-label{font-size:18px;color:var(--gray-600);}
        .rating{display:flex;align-items:center;gap:6px;}
        .stars{color:#fbbf24;font-size:28px;letter-spacing:2px;}
        .hero-visual{flex:1;min-width:300px;background:rgba(255,255,255,0.5);border-radius:var(--rounded-lg);padding:30px;text-align:center;box-shadow:var(--shadow-lg);backdrop-filter:blur(8px);}
        .hero-visual .icon-placeholder{font-size:80px;}
        .hero-visual h3{font-size:28px;margin:20px 0;}
        /* 版块标题 */
        .section-title{font-size:40px;font-weight:700;text-align:center;margin-bottom:48px;letter-spacing:-0.01em;}
        .section-title span{border-bottom:4px solid var(--primary);padding-bottom:8px;}
        /* 功能卡片 */
        .feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;margin:48px 0;}
        .feature-card{background:var(--gray-50);padding:32px 24px;border-radius:var(--rounded);box-shadow:var(--shadow-sm);transition:0.2s;border:1px solid #eef2f6;}
        .feature-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);}
        .feature-icon{font-size:48px;margin-bottom:16px;}
        .feature-card h3{font-size:26px;margin-bottom:12px;}
        .feature-card p{font-size:18px;color:var(--gray-600);}
        /* 版本卡片 */
        .version-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;margin:48px 0;}
        .version-card{background:#fff;border-radius:var(--rounded);padding:32px 24px;box-shadow:var(--shadow-sm);border:1px solid #eef2f6;transition:0.2s;}
        .version-card:hover{box-shadow:var(--shadow-lg);}
        .version-icon{font-size:48px;margin-bottom:16px;}
        .version-card h3{font-size:28px;margin-bottom:8px;}
        .price{font-size:24px;font-weight:700;color:var(--primary);margin:16px 0 8px;}
        .price small{font-size:16px;font-weight:400;color:var(--gray-600);}
        .feature-list{list-style:none;margin:20px 0;}
        .feature-list li{margin:10px 0;font-size:18px;}
        .feature-list li::before{content:"✓";color:var(--primary);font-weight:bold;margin-right:10px;}
        /* 安装步骤 */
        .steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin:40px 0;}
        .step-card{text-align:center;padding:24px 16px;background:var(--gray-50);border-radius:var(--rounded);}
        .step-num{width:56px;height:56px;background:var(--primary);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:28px;font-weight:700;margin:0 auto 20px;}
        .step-card h4{font-size:22px;margin-bottom:10px;}
        .step-card p{font-size:17px;color:var(--gray-600);}
        /* 评论卡片 */
        .review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
        .review-card{background:#fff;padding:24px;border-radius:var(--rounded);box-shadow:var(--shadow-sm);}
        .review-stars{color:#fbbf24;font-size:24px;margin-bottom:12px;}
        .review-text{font-size:18px;margin:16px 0;}
        .review-author{font-weight:600;}
        /* FAQ折叠 */
        .faq-list{max-width:900px;margin:0 auto;}
        details{background:var(--gray-50);border-radius:var(--rounded);padding:20px 24px;margin-bottom:12px;border:1px solid #eef2f6;font-size:18px;}
        summary{font-weight:600;font-size:20px;cursor:pointer;list-style:none;display:flex;align-items:center;}
        summary::-webkit-details-marker{display:none;}
        summary::before{content:"▶";margin-right:16px;font-size:18px;transition:transform 0.2s;color:var(--primary);}
        details[open] summary::before{transform:rotate(90deg);}
        .faq-answer{padding:16px 0 0 36px;color:var(--gray-600);}
        /* 教程列表 */
        .tutorial-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin:30px 0;}
        .tutorial-item{background:var(--gray-50);padding:20px 24px;border-radius:var(--rounded);font-size:18px;font-weight:500;}
        /* 底部 */
        footer{background:var(--gray-800);color:#cbd5e1;margin-top:80px;padding:48px 0 24px;}
        .footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:40px;}
        .footer-col h4{color:#fff;font-size:22px;margin-bottom:20px;}
        .footer-col ul{list-style:none;}
        .footer-col li{margin:12px 0;}
        .footer-col a{color:#cbd5e1;text-decoration:none;font-size:17px;}
        .footer-col a:hover{color:#fff;}
        .copyright{text-align:center;padding-top:40px;border-top:1px solid #334155;margin-top:40px;font-size:16px;}
        /* 响应式 */
        @media (max-width:768px){
            .header-inner{flex-direction:column;align-items:stretch;}
            nav{justify-content:center;gap:20px;}
            .hero h1{font-size:40px;}
            .feature-grid,.version-grid,.steps-grid,.review-grid{grid-template-columns:1fr;}
            .footer-grid{grid-template-columns:1fr;}
        }
        .text-center{text-align:center;}
        .mt-4{margin-top:32px;}
        .mb-4{margin-bottom:32px;}
        .py-6{padding:60px 0;}
        .download-platforms{display:flex;flex-wrap:wrap;gap:24px;justify-content:center;margin:40px 0;}
        .platform-item{background:#fff;border-radius:var(--rounded);padding:24px 32px;box-shadow:var(--shadow-sm);min-width:200px;}
        .platform-item .icon{font-size:40px;}
        .platform-item h4{font-size:24px;margin:16px 0 8px;}
        .platform-item p{color:var(--gray-600);margin-bottom:16px;}
    </style>