/* 内联核心样式，确保首屏渲染速度 */
        :root {
            --primary: #6C5CE7;
            --primary-hover: #5A4BD1;
            --dark: #0f172a;
            --light: #f8fafc;
            --text: #475569;
            --border: #e2e8f0;
            --radius: 16px;
            --shadow-sm: 0 10px 25px -5px rgba(0,0,0,0.03);
            --shadow-lg: 0 20px 35px -8px rgba(108,92,231,0.15);
        }
        *{margin:0;padding:0;box-sizing:border-box;}
        body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--text);background:#fff;line-height:1.6;}
        header{border-bottom:1px solid var(--border);position:sticky;top:0;background:rgba(255,255,255,0.85);backdrop-filter:blur(12px);z-index:100;}
        .nav-container{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;padding:16px 20px;}
        .logo a{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:700;color:var(--primary);text-decoration:none;}
        .logo svg{width:32px;height:32px;fill:var(--primary);}
        .nav-links a{color:var(--text);text-decoration:none;margin-left:25px;font-size:15px;font-weight:500;transition:all 0.2s;padding:6px 12px;border-radius:6px;}
        .nav-links a:hover,.nav-links a.active{color:#fff;background-color:var(--primary);}
        .hero{background:radial-gradient(120% 120% at 50% 0%,rgba(108,92,231,0.06) 0%,rgba(255,255,255,0) 100%);padding:100px 20px 60px;text-align:center;}
        .hero-inner{max-width:900px;margin:0 auto;}
        .brand-icon{width:80px;height:80px;background:var(--primary);color:#fff;border-radius:22px;display:flex;align-items:center;justify-content:center;margin:0 auto 28px;box-shadow:0 12px 24px rgba(108,92,231,0.2);}
        .brand-icon svg{width:44px;height:44px;fill:#fff;}
        .hero h1{font-size:46px;color:var(--dark);margin-bottom:20px;font-weight:800;letter-spacing:-1px;line-height:1.25;}
        .hero p{font-size:18px;color:#64748b;margin-bottom:36px;max-width:680px;margin-left:auto;margin-right:auto;}
        .hero-buttons{display:flex;justify-content:center;gap:16px;margin-bottom:50px;flex-wrap:wrap;}
        .btn-primary{background:var(--primary);color:#fff;text-decoration:none;padding:14px 28px;border-radius:8px;font-weight:600;font-size:16px;transition:all 0.2s;box-shadow:0 4px 14px rgba(108,92,231,0.3);}
        .btn-primary:hover{background:var(--primary-hover);transform:translateY(-2px);box-shadow:0 6px 20px rgba(108,92,231,0.4);}
        .btn-secondary{background:#fff;color:var(--dark);text-decoration:none;padding:14px 28px;border-radius:8px;font-weight:600;font-size:16px;border:1px solid var(--border);transition:all 0.2s;}
        .btn-secondary:hover{background:var(--light);border-color:#cbd5e1;transform:translateY(-2px);}
        .image-banner{max-width:800px;margin:0 auto 30px;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg);}
        .image-banner img{width:100%;display:block;object-fit:cover;}
        section{padding:80px 20px;}
        .section-header{text-align:center;max-width:700px;margin:0 auto 50px;}
        .section-title{font-size:32px;color:var(--dark);font-weight:800;margin-bottom:12px;letter-spacing:-0.5px;}
        .section-subtitle{font-size:16px;color:#64748b;}
        .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:1200px;margin:0 auto;}
        .card{border:1px solid var(--border);border-radius:var(--radius);padding:32px 24px;background:#fff;transition:all 0.3s;}
        .card:hover{transform:translateY(-6px);box-shadow:var(--shadow-sm);border-color:#cbd5e1;}
        .card h3{font-size:19px;color:var(--dark);margin-bottom:12px;font-weight:700;}
        .card p{font-size:14.5px;color:#64748b;}
        .card-icon{font-size:38px;margin-bottom:18px;}
        .platform-grid{display:flex;flex-wrap:wrap;justify-content:center;gap:40px;max-width:1000px;margin:0 auto;text-align:center;}
        .platform-item{flex:1 1 140px;max-width:180px;}
        .platform-icon{font-size:48px;margin-bottom:10px;}
        .platform-name{font-weight:600;color:var(--dark);}
        .stats-row{display:flex;justify-content:center;gap:60px;flex-wrap:wrap;max-width:800px;margin:0 auto;text-align:center;}
        .stat-value{font-size:42px;font-weight:800;color:var(--primary);line-height:1;}
        .stat-label{font-size:15px;color:#64748b;margin-top:8px;}
        .faq-summary{max-width:800px;margin:0 auto;}
        .faq-item{border-bottom:1px solid var(--border);padding:20px 0;}
        .faq-question{font-weight:700;color:var(--dark);cursor:pointer;display:flex;justify-content:space-between;align-items:center;}
        .faq-answer{font-size:14.5px;color:#64748b;margin-top:10px;display:none;}
        .faq-item.open .faq-answer{display:block;}
        .community-links{display:flex;justify-content:center;gap:30px;flex-wrap:wrap;}
        .community-link{display:inline-flex;align-items:center;gap:8px;background:var(--light);padding:12px 24px;border-radius:50px;text-decoration:none;color:var(--dark);font-weight:500;transition:all 0.2s;border:1px solid var(--border);}
        .community-link:hover{background:#fff;border-color:var(--primary);color:var(--primary);}
        footer{background:var(--dark);color:#94a3b8;padding:70px 20px 40px;font-size:14px;border-top:1px solid #1e293b;}
        .footer-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:2fr repeat(4,1fr);gap:40px;padding-bottom:40px;border-bottom:1px solid #1e293b;}
        .footer-brand h4{color:#fff;font-size:18px;margin-bottom:12px;}
        .footer-column h5{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600;}
        .footer-column ul{list-style:none;}
        .footer-column li{margin-bottom:10px;}
        .footer-column a{color:#94a3b8;text-decoration:none;transition:color 0.2s;}
        .footer-column a:hover{color:#fff;}
        .footer-bottom{max-width:1200px;margin:30px auto 0;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:15px;}
        @media(max-width:768px){
            .grid-3,.footer-grid{grid-template-columns:1fr;}
            .hero h1{font-size:32px;}
            .nav-container{flex-direction:column;gap:15px;}
            .nav-links a{margin-left:10px;font-size:14px;}
            .stats-row{gap:30px;}
        }