*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}:root{--bg: #0f1117;--bg-alt: #161822;--surface: #1e2030;--border: #2a2d3e;--text: #e0e0e6;--text-muted: #8e91a4;--accent: #4f8cff;--accent-hover: #6aa0ff;--accent-glow: rgba(79, 140, 255, .15);--success: #34d399;--radius: 10px;--font: "Inter", "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif}html{scroll-behavior:smooth}body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.65;-webkit-font-smoothing:antialiased}a{color:var(--accent);text-decoration:none}a:hover{color:var(--accent-hover)}img{max-width:100%;display:block}.container{max-width:1120px;margin:0 auto;padding:0 24px}.section{padding:80px 0}.section-alt{background:var(--bg-alt)}.section-sub{color:var(--text-muted);max-width:640px;margin:8px auto 40px;text-align:center}h2{text-align:center;font-size:2rem;margin-bottom:12px}h3{font-size:1.25rem;margin-bottom:8px}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}.nav{position:fixed;top:0;left:0;right:0;z-index:100;background:#0f1117d9;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}.nav-inner{max-width:1120px;margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;height:60px}.logo{display:flex;align-items:center;gap:8px;font-weight:700;font-size:1.1rem}.logo-icon{font-size:1.4rem}.logo-sub{display:block;font-weight:400;color:var(--text-muted);font-size:.65rem;letter-spacing:.03em}.nav-links{display:flex;gap:24px;align-items:center}.nav-links a{color:var(--text-muted);font-size:.9rem;transition:color .2s}.nav-links a:hover{color:var(--text)}.lang-btn{background:var(--surface);padding:4px 14px;border-radius:6px;border:1px solid var(--border);font-size:.85rem}.lang-btn:hover{background:var(--border)}.mobile-menu{display:none;background:none;border:none;color:var(--text);font-size:1.5rem;cursor:pointer}.hero{padding:160px 24px 100px;text-align:center;background:linear-gradient(180deg,var(--bg) 0%,var(--bg-alt) 100%)}.hero-inner{max-width:740px;margin:0 auto}.hero h1{font-size:3rem;font-weight:800;line-height:1.2;margin-bottom:20px}.hero-sub{color:var(--text-muted);font-size:1.15rem;line-height:1.7;margin-bottom:32px}.hero-cta{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}.hero-trust{margin-top:28px;font-size:.8rem;color:var(--text-muted)}.btn{display:inline-block;padding:12px 28px;border-radius:8px;font-weight:600;font-size:.95rem;transition:all 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.2s;display:flex;flex-direction:column}.tier-card:hover{transform:translateY(-3px)}.tier-featured{border-color:var(--accent);box-shadow:0 0 40px var(--accent-glow)}.tier-label{font-size:.75rem;text-transform:uppercase;letter-spacing:.08em;color:var(--accent);font-weight:700;margin-bottom:12px}.tier-price{font-size:1.3rem;font-weight:700;margin:8px 0 20px}.tier-card ul{list-style:none;text-align:left;margin-bottom:24px;flex:1}.tier-card li{padding:6px 0;font-size:.9rem;color:var(--text-muted);border-bottom:1px solid var(--border)}.tier-card li:before{content:"✓ ";color:var(--success);font-weight:600}.tier-card li:first-child:before{content:""}.tier-card .btn{margin-top:auto}.demo-frame{position:relative;width:100%;padding-top:56.25%;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);margin:20px 0}.demo-frame iframe{position:absolute;top:0;left:0;width:100%;height:100%;border:none}.demo-note{text-align:center;color:var(--text-muted);font-size:.85rem}.showcase-hero-grid{display:grid;grid-template-columns:1fr;gap:28px;margin:28px 0 40px}.showcase-hero-card{border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);background:var(--surface);transition:transform .2s,box-shadow .2s}.showcase-hero-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px #00000040}.showcase-hero-card img{width:100%;display:block}.showcase-hero-label{padding:18px 22px}.showcase-hero-label h3{margin:0 0 6px;color:var(--accent);font-size:1.15rem}.showcase-hero-label p{margin:0;color:var(--text-muted);font-size:.9rem;line-height:1.5}.showcase-grid-title{text-align:center;color:var(--text-muted);font-size:1rem;margin:36px 0 16px;font-weight:600;text-transform:uppercase;letter-spacing:.04em}.showcase-thumb-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin-bottom:20px}.showcase-thumb{border-radius:6px;overflow:hidden;border:1px solid var(--border);background:var(--surface);text-align:center;transition:transform .15s,box-shadow .15s}.showcase-thumb:hover{transform:translateY(-2px);box-shadow:0 4px 12px #0003}.showcase-thumb img{width:100%;display:block}.showcase-thumb span{display:block;padding:6px 4px;font-size:.72rem;color:var(--text-muted);font-weight:500}.showcase-lightbox{display:none;position:fixed;top:0;right:0;bottom:0;left:0;z-index:9999;background:#000000e0;align-items:center;justify-content:center;padding:24px}.showcase-lightbox.active{display:flex}.showcase-lightbox img{max-width:95vw;max-height:90vh;border-radius:8px;box-shadow:0 8px 32px #00000080}.lightbox-close{position:absolute;top:16px;right:24px;background:none;border:none;color:#fff;font-size:2.4rem;cursor:pointer;line-height:1}@media(max-width:768px){.showcase-thumb-grid{grid-template-columns:repeat(3,1fr)}}.resource-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:36px 28px;text-align:center}.resource-icon{font-size:2.4rem;margin-bottom:16px}.resource-card p{color:var(--text-muted);font-size:.92rem;margin-bottom:20px}.resource-card .btn{margin:4px}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;max-width:880px;margin:0 auto}.contact-form{display:flex;flex-direction:column;gap:14px}.contact-form input,.contact-form textarea{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:12px 16px;color:var(--text);font-family:var(--font);font-size:.95rem;transition:border-color .2s}.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--accent)}.contact-form textarea{resize:vertical}.contact-info{display:flex;flex-direction:column;gap:28px;padding-top:8px}.contact-item strong{display:block;margin-bottom:4px;font-size:.85rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.06em}.contact-item a{font-size:1rem}.wechat-qr{width:120px;height:120px;background:var(--surface);border:1px solid var(--border);border-radius:8px;display:flex;align-items:center;justify-content:center;color:var(--text-muted);font-size:.8rem;margin-top:8px}.footer{padding:28px 0;border-top:1px solid var(--border);font-size:.85rem;color:var(--text-muted)}.footer-inner{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px}.footer-links{display:flex;gap:20px}.footer-links a{color:var(--text-muted)}.footer-links a:hover{color:var(--text)}@media(max-width:768px){.hero h1{font-size:2rem}.hero-sub{font-size:1rem}h2{font-size:1.6rem}.grid-2,.grid-3,.contact-grid{grid-template-columns:1fr}.nav-links{display:none}.nav-links.nav-open{display:flex;flex-direction:column;position:absolute;top:60px;left:0;right:0;background:var(--bg);border-bottom:1px solid var(--border);padding:16px 24px;gap:16px}.mobile-menu{display:block}.section{padding:56px 0}.hero{padding:120px 24px 72px}}