*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#0a0e17;--bg2:#111827;--bg3:#1a2235;--card:#151d2e;
  --text:#e2e8f0;--muted:#94a3b8;--accent:#3b82f6;--accent2:#6366f1;
  --gradient:linear-gradient(135deg,#3b82f6 0%,#6366f1 50%,#8b5cf6 100%);
  --radius:12px;--shadow:0 4px 24px rgba(0,0,0,.4);
}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.7;overflow-x:hidden}
a{color:var(--accent);text-decoration:none;transition:color .2s}
a:hover{color:#60a5fa}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* Header */
.header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(10,14,23,.85);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.06)}
.header .container{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:10px;font-size:1.25rem;font-weight:700;color:var(--text)}
.logo img,.logo-icon{width:32px;height:32px;border-radius:50%;flex-shrink:0}
.nav{display:flex;align-items:center;gap:28px}
.nav a{color:var(--muted);font-size:.95rem;font-weight:500}
.nav a:hover,.nav a.active{color:var(--text)}
.nav .btn-download{padding:8px 20px;background:var(--gradient);color:#fff;border-radius:8px;font-weight:600}
.nav .btn-download:hover{color:#fff;opacity:.9}
.menu-toggle{display:none;background:none;border:none;color:var(--text);font-size:1.5rem;cursor:pointer}

/* Hero */
.hero{padding:140px 0 80px;text-align:center;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(ellipse at 50% 0%,rgba(59,130,246,.15) 0%,transparent 60%);pointer-events:none}
.hero .badge{display:inline-block;padding:6px 16px;background:rgba(59,130,246,.15);border:1px solid rgba(59,130,246,.3);border-radius:20px;font-size:.85rem;color:var(--accent);margin-bottom:24px}
.hero h1{font-size:clamp(2rem,5vw,3.2rem);font-weight:800;line-height:1.2;margin-bottom:20px;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero .subtitle{font-size:1.15rem;color:var(--muted);max-width:640px;margin:0 auto 36px}
.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:10px;font-size:1rem;font-weight:600;cursor:pointer;border:none;transition:transform .2s,box-shadow .2s}
.btn-primary{background:var(--gradient);color:#fff;box-shadow:0 4px 20px rgba(59,130,246,.4)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 28px rgba(59,130,246,.5);color:#fff}
.btn-outline{background:transparent;color:var(--text);border:1px solid rgba(255,255,255,.15)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent)}

/* Stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:64px}
.stat-item{padding:24px;background:var(--card);border-radius:var(--radius);border:1px solid rgba(255,255,255,.06)}
.stat-item .num{font-size:2rem;font-weight:800;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.stat-item .label{font-size:.9rem;color:var(--muted);margin-top:4px}

/* Sections */
section{padding:80px 0}
.section-header{text-align:center;margin-bottom:56px}
.section-header .tag{display:inline-block;font-size:.8rem;text-transform:uppercase;letter-spacing:2px;color:var(--accent);margin-bottom:12px}
.section-header h2{font-size:clamp(1.6rem,3vw,2.2rem);font-weight:700;margin-bottom:12px}
.section-header p{color:var(--muted);max-width:600px;margin:0 auto}

/* Features */
.features-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.feature-card{padding:32px 24px;background:var(--card);border-radius:var(--radius);border:1px solid rgba(255,255,255,.06);transition:transform .2s,border-color .2s}
.feature-card:hover{transform:translateY(-4px);border-color:rgba(59,130,246,.3)}
.feature-card .icon{font-size:2rem;margin-bottom:16px}
.feature-card h3{font-size:1.1rem;font-weight:600;margin-bottom:10px}
.feature-card p{font-size:.9rem;color:var(--muted);line-height:1.6}

/* Platform */
.platform-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.platform-card{padding:40px 28px;background:var(--card);border-radius:var(--radius);border:1px solid rgba(255,255,255,.06);text-align:center;transition:transform .2s}
.platform-card:hover{transform:translateY(-4px)}
.platform-card .icon{font-size:3rem;margin-bottom:16px}
.platform-card h3{font-size:1.2rem;font-weight:600;margin-bottom:8px}
.platform-card p{font-size:.9rem;color:var(--muted);margin-bottom:20px}
.platform-card .version{display:inline-block;padding:4px 12px;background:rgba(59,130,246,.1);border-radius:6px;font-size:.8rem;color:var(--accent);margin-bottom:16px}

/* Architecture */
.arch-flow{display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap;padding:40px 0}
.arch-node{padding:24px 32px;background:var(--card);border-radius:var(--radius);border:1px solid rgba(255,255,255,.08);text-align:center;min-width:140px}
.arch-node .icon{font-size:1.8rem;margin-bottom:8px}
.arch-node h4{font-size:.95rem;font-weight:600}
.arch-node span{font-size:.8rem;color:var(--muted)}
.arch-arrow{color:var(--accent);font-size:1.5rem}

/* Testimonials */
.testimonials-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.testimonial-card{padding:32px 24px;background:var(--card);border-radius:var(--radius);border:1px solid rgba(255,255,255,.06)}
.testimonial-card .stars{color:#fbbf24;font-size:1rem;margin-bottom:16px;letter-spacing:2px}
.testimonial-card blockquote{font-size:.95rem;color:var(--muted);font-style:italic;margin-bottom:20px;line-height:1.7}
.testimonial-card .author{display:flex;align-items:center;gap:12px}
.testimonial-card .avatar{width:40px;height:40px;border-radius:50%;background:var(--gradient);display:flex;align-items:center;justify-content:center;font-weight:700;color:#fff;font-size:.9rem}
.testimonial-card .author-info .name{font-weight:600;font-size:.9rem}
.testimonial-card .author-info .role{font-size:.8rem;color:var(--muted)}

/* FAQ */
.faq-list{max-width:760px;margin:0 auto}
.faq-item{border-bottom:1px solid rgba(255,255,255,.08)}
.faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;padding:20px 0;background:none;border:none;color:var(--text);font-size:1rem;font-weight:500;cursor:pointer;text-align:left}
.faq-question .toggle{font-size:1.2rem;color:var(--accent);transition:transform .3s}
.faq-item.open .faq-question .toggle{transform:rotate(45deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.open .faq-answer{max-height:300px}
.faq-answer p{padding:0 0 20px;color:var(--muted);font-size:.95rem;line-height:1.7}

/* CTA */
.cta{padding:80px 0;text-align:center;background:var(--bg2);border-top:1px solid rgba(255,255,255,.06)}
.cta h2{font-size:clamp(1.5rem,3vw,2rem);font-weight:700;margin-bottom:12px}
.cta p{color:var(--muted);margin-bottom:28px}

/* Footer */
.footer{padding:40px 0;border-top:1px solid rgba(255,255,255,.06);background:var(--bg)}
.footer .container{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px}
.footer p{color:var(--muted);font-size:.85rem}
.footer-links{display:flex;gap:20px}
.footer-links a{color:var(--muted);font-size:.85rem}
.footer-links a:hover{color:var(--text)}

/* Download Page */
.download-hero{padding:120px 0 60px;text-align:center}
.download-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:48px}
.download-card{padding:48px 32px;background:var(--card);border-radius:var(--radius);border:1px solid rgba(255,255,255,.06);text-align:center}
.download-card .icon{font-size:3.5rem;margin-bottom:20px}
.download-card h3{font-size:1.3rem;font-weight:700;margin-bottom:8px}
.download-card .desc{color:var(--muted);font-size:.9rem;margin-bottom:12px}
.download-card .file-info{font-size:.8rem;color:var(--muted);margin-bottom:24px}
.download-card .btn{width:100%;justify-content:center}
.requirements{max-width:800px;margin:60px auto 0;padding:32px;background:var(--card);border-radius:var(--radius);border:1px solid rgba(255,255,255,.06)}
.requirements h3{font-size:1.1rem;margin-bottom:16px}
.requirements ul{list-style:none}
.requirements li{padding:8px 0;color:var(--muted);font-size:.9rem;border-bottom:1px solid rgba(255,255,255,.04)}
.requirements li::before{content:'✓ ';color:var(--accent)}

/* Articles */
.article-hero{padding:120px 0 40px}
.article-hero h1{font-size:clamp(1.8rem,4vw,2.6rem);font-weight:800;margin-bottom:12px}
.article-meta{color:var(--muted);font-size:.9rem;margin-bottom:32px}
.article-content{max-width:760px;margin:0 auto;padding-bottom:80px}
.article-content h2{font-size:1.4rem;font-weight:700;margin:36px 0 16px;color:var(--text)}
.article-content h3{font-size:1.15rem;font-weight:600;margin:28px 0 12px}
.article-content p{color:var(--muted);margin-bottom:16px;line-height:1.8}
.article-content ul,.article-content ol{margin:0 0 16px 24px;color:var(--muted)}
.article-content li{margin-bottom:8px;line-height:1.7}
.article-content code{background:var(--bg3);padding:2px 8px;border-radius:4px;font-size:.9rem;color:var(--accent)}
.article-content pre{background:var(--bg3);padding:20px;border-radius:var(--radius);overflow-x:auto;margin-bottom:16px}
.article-content pre code{background:none;padding:0}
.article-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:24px;padding-bottom:80px}
.article-card{padding:28px;background:var(--card);border-radius:var(--radius);border:1px solid rgba(255,255,255,.06);transition:transform .2s,border-color .2s}
.article-card:hover{transform:translateY(-4px);border-color:rgba(59,130,246,.3)}
.article-card .date{font-size:.8rem;color:var(--accent);margin-bottom:8px}
.article-card h3{font-size:1.1rem;font-weight:600;margin-bottom:10px}
.article-card h3 a{color:var(--text)}
.article-card h3 a:hover{color:var(--accent)}
.article-card p{font-size:.9rem;color:var(--muted);line-height:1.6}
.article-card .read-more{display:inline-block;margin-top:12px;font-size:.85rem;font-weight:600}

/* Dynamic articles */
.dynamic-articles{margin-top:40px}
.dynamic-articles h2{font-size:1.4rem;margin-bottom:24px;text-align:center}

/* Breadcrumb */
.breadcrumb{padding:80px 0 0;font-size:.85rem;color:var(--muted)}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--accent)}

/* Responsive */
@media(max-width:900px){
  .nav{display:none}
  .nav.open{display:flex;flex-direction:column;position:absolute;top:64px;left:0;right:0;background:var(--bg2);padding:20px;border-bottom:1px solid rgba(255,255,255,.06)}
  .menu-toggle{display:block}
  .stats{grid-template-columns:repeat(2,1fr)}
  .platform-grid,.download-grid,.testimonials-grid{grid-template-columns:1fr}
  .arch-flow{flex-direction:column}
  .arch-arrow{transform:rotate(90deg)}
}
@media(max-width:480px){
  .stats{grid-template-columns:1fr}
  .hero-actions{flex-direction:column;align-items:center}
}