<style>
        *{margin:0;padding:0;box-sizing:border-box;}
        body{font-family:'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;line-height:1.6;color:#2c3e50;background:#fff;}
        a{text-decoration:none;color:inherit;}
        img{max-width:100%;height:auto;}
        .container{max-width:1200px;margin:0 auto;padding:0 20px;}
        .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;flex-wrap:wrap;}
        .logo{display:flex;align-items:center;gap:8px;font-size:24px;font-weight:700;}
        .logo-icon{width:40px;height:40px;background:linear-gradient(135deg,#1890ff,#0052d9);border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:20px;font-weight:700;}
        .logo-text{color:#0052d9;}
        .logo-text span{color:#2c3e50;font-size:14px;font-weight:400;margin-left:5px;}
        .nav{display:flex;gap:30px;font-size:16px;font-weight:500;}
        .nav a{padding:8px 0;border-bottom:2px solid transparent;transition:.3s;}
        .nav a:hover,.nav a.active{border-bottom-color:#1890ff;color:#1890ff;}
        .header-btn{background:#1890ff;color:#fff;padding:10px 24px;border-radius:30px;font-weight:500;}
        .header-btn:hover{background:#0052d9;}
        
        .page-header{background:linear-gradient(135deg,#f0f7ff,#e6f2ff);padding:40px 0;text-align:center;}
        .page-header h1{font-size:40px;color:#1a1a2e;margin-bottom:10px;}
        .page-header p{color:#666;font-size:18px;}
        
        .section-title{text-align:center;margin:50px 0 30px;}
        .section-title h2{font-size:32px;color:#1a1a2e;}
        
        .download-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin:30px 0;}
        .download-card{background:#fff;padding:30px 20px;border-radius:16px;text-align:center;box-shadow:0 5px 20px rgba(0,0,0,0.05);border:1px solid #eee;transition:.3s;}
        .download-card:hover{box-shadow:0 15px 30px rgba(24,144,255,0.1);border-color:#1890ff;}
        .download-icon{font-size:50px;margin-bottom:16px;}
        .download-card h3{font-size:20px;margin-bottom:8px;}
        .version{color:#888;font-size:14px;margin-bottom:16px;}
        .btn-download{background:#1890ff;color:#fff;padding:12px 24px;border-radius:30px;display:inline-block;font-weight:500;transition:.3s;}
        .btn-download:hover{background:#0052d9;box-shadow:0 4px 12px rgba(24,144,255,0.3);}
        
        .quick-download{background:#f5f9ff;padding:40px;border-radius:20px;margin:40px 0;text-align:center;}
        .quick-download h3{font-size:24px;margin-bottom:20px;}
        .quick-buttons{display:flex;gap:20px;justify-content:center;flex-wrap:wrap;}
        
        .guide-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin:30px 0;}
        .step{background:#f9fcff;padding:24px;border-radius:12px;text-align:center;}
        .step-num{width:40px;height:40px;background:#1890ff;color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-weight:700;font-size:18px;}
        .step h4{font-size:18px;margin-bottom:8px;}
        
        .faq-list{max-width:900px;margin:0 auto;}
        .faq-item{border-bottom:1px solid #e0e8f0;}
        .faq-question{display:flex;align-items:center;padding:18px 0;cursor:pointer;font-weight:500;}
        .faq-num{width:30px;height:30px;background:#1890ff10;color:#1890ff;border-radius:50%;display:flex;align-items:center;justify-content:center;margin-right:16px;font-size:14px;}
        .faq-question span:last-child{flex:1;}
        .faq-toggle{color:#1890ff;font-size:20px;}
        .faq-answer{padding:0 0 18px 46px;color:#666;display:none;}
        .faq-item.active .faq-answer{display:block;}
        
        .nav-links{display:flex;gap:20px;justify-content:center;margin:40px 0;}
        .nav-links a{background:#fff;padding:12px 30px;border-radius:30px;border:2px solid #1890ff;color:#1890ff;font-weight:500;transition:.3s;}
        .nav-links a:hover{background:#1890ff;color:#fff;}
        
        .footer{background:#1a1a2e;color:#ccc;padding:50px 0 20px;margin-top:50px;}
        .footer-intro{max-width:700px;margin-bottom:30px;line-height:1.8;font-size:14px;}
        .footer-keywords{display:flex;flex-wrap:wrap;gap:10px 20px;margin:30px 0;padding:20px 0;border-top:1px solid #333;border-bottom:1px solid #333;}
        .footer-keywords a{color:#888;font-size:13px;}
        .footer-nav{display:flex;gap:30px;margin-bottom:30px;}
        .footer-nav a{color:#ccc;font-size:14px;}
        .copyright{text-align:center;color:#666;font-size:13px;padding-top:20px;}
        
        @media (max-width:768px){
            .download-grid{grid-template-columns:1fr;}
            .guide-steps{grid-template-columns:repeat(2,1fr);}
            .header .container{justify-content:center;}
            .nav{margin-top:10px;gap:20px;}
        }
    </style>