.site-header{position:fixed;top:0;left:0;right:0;height:64px;background:var(--glass);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);z-index:1000}.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}.logo{display:flex;align-items:center;gap:10px;color:var(--text-primary);font-weight:700;font-size:18px}.logo-img{height:32px;width:auto}.nav{display:flex;gap:8px}.nav a{color:var(--text-secondary);padding:8px 16px;border-radius:6px;font-size:15px;transition:all .2s}.nav a:hover,.nav a.active{color:var(--accent-primary);background:#00d4ff14}.menu-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}.menu-toggle span{display:block;width:22px;height:2px;background:var(--text-primary)}@media(max-width:768px){.menu-toggle{display:flex}.nav{display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;background:var(--bg-secondary);padding:16px;border-bottom:1px solid var(--border)}.nav.open{display:flex}}.site-footer{background:var(--bg-secondary);border-top:1px solid var(--border);margin-top:auto}.footer-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;padding:48px 24px}.footer-grid h4{color:var(--text-primary);margin-bottom:12px;font-size:16px}.footer-grid p,.footer-grid a{display:block;color:var(--text-muted);font-size:14px;margin-bottom:6px}.footer-bottom{border-top:1px solid var(--border);padding:20px 0;text-align:center}.footer-bottom p{color:var(--text-muted);font-size:14px}@media(max-width:768px){.footer-grid{grid-template-columns:1fr}}.hero{min-height:100vh;display:flex;align-items:center;position:relative;padding-top:64px}.hero-bg{position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(ellipse at 50% 0%,rgba(0,212,255,.12) 0%,transparent 60%),linear-gradient(rgba(0,212,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(0,212,255,.03) 1px,transparent 1px);background-size:100% 100%,40px 40px,40px 40px}.hero-content{position:relative;text-align:center;padding:80px 24px}.hero-tag{color:var(--accent-primary);font-size:14px;letter-spacing:2px;text-transform:uppercase;margin-bottom:16px}.hero h1{font-size:clamp(36px,6vw,64px);font-weight:700;margin-bottom:20px}.hero-sub{font-size:20px;color:var(--text-secondary);max-width:600px;margin:0 auto 40px}.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}.feature-card h3{font-size:18px;margin:12px 0 8px}.feature-card p{color:var(--text-secondary);font-size:14px}.feature-icon{font-size:24px;font-weight:700;color:var(--accent-primary);opacity:.6}:root{--bg-primary: #0a0e17;--bg-secondary: #111827;--bg-elevated: #1a2332;--accent-primary: #00d4ff;--accent-secondary: #6366f1;--text-primary: #f1f5f9;--text-secondary: #94a3b8;--text-muted: #64748b;--border: rgba(0, 212, 255, .15);--glass: rgba(17, 24, 39, .7)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,PingFang SC,Microsoft YaHei,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;min-height:100vh}a{color:var(--accent-primary);text-decoration:none}a:hover{opacity:.85}.container{max-width:1200px;margin:0 auto;padding:0 24px}.gradient-text{background:linear-gradient(135deg,#00d4ff,#6366f1);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.btn-primary{display:inline-block;padding:12px 28px;background:linear-gradient(135deg,#00d4ff,#6366f1);color:#fff;border:none;border-radius:8px;font-size:16px;font-weight:600;cursor:pointer;transition:transform .2s,box-shadow .2s}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 24px #00d4ff4d}.btn-outline{display:inline-block;padding:12px 28px;background:transparent;color:var(--accent-primary);border:1px solid var(--accent-primary);border-radius:8px;font-size:16px;cursor:pointer;transition:all .2s}.btn-outline:hover{background:#00d4ff1a}.card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:12px;padding:24px;transition:border-color .2s,box-shadow .2s}.card:hover{border-color:#00d4ff66;box-shadow:0 0 24px #00d4ff14}.section{padding:80px 0}.section-title{font-size:36px;font-weight:700;text-align:center;margin-bottom:16px}.section-desc{text-align:center;color:var(--text-secondary);margin-bottom:48px}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}@media(max-width:768px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.section{padding:48px 0}.section-title{font-size:28px}}.app{min-height:100vh;display:flex;flex-direction:column}main{flex:1;padding-top:64px}.page-top{padding-top:40px}.download-card .version-tag{display:inline-block;padding:2px 10px;background:#00d4ff1a;color:var(--accent-primary);border-radius:4px;font-size:12px;margin-bottom:12px}.download-card h3{margin-bottom:8px}.download-card p{color:var(--text-secondary);font-size:14px;margin-bottom:16px}.product-card{display:block;color:inherit;position:relative}.product-card h3{margin-bottom:8px}.product-card p{color:var(--text-secondary);font-size:14px}.link-arrow{position:absolute;right:24px;top:24px;color:var(--accent-primary);font-size:20px}.about-card{max-width:800px;margin:0 auto}.contact-card{max-width:600px;margin:0 auto}.contact-item{margin-bottom:24px}.contact-item label{display:block;color:var(--text-muted);font-size:13px;margin-bottom:4px}.contact-item p{font-size:16px}