:root{--h:37;--ah:232;--sat:58%;--lit:63%;--radius:28px;--space:1.25;--max:1045px;--bg:hsl(var(--h) 34% 8%);--panel:hsl(var(--h) 25% 13%);--ink:hsl(var(--h) 20% 96%);--muted:hsl(var(--h) 14% 70%);--accent:hsl(var(--ah) var(--sat) var(--lit));--line:hsl(var(--h) 20% 28%)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.75 system-ui,-apple-system,"Microsoft YaHei",sans-serif}body.light{--bg:hsl(var(--h) 35% 96%);--panel:white;--ink:hsl(var(--h) 35% 11%);--muted:hsl(var(--h) 12% 38%);--line:hsl(var(--h) 18% 82%)}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}button{cursor:pointer}.shell{width:min(var(--max),92vw);margin:auto}.topbar{display:flex;align-items:center;gap:22px;padding:20px 0;border-bottom:1px solid var(--line);position:relative;z-index:4}.brand{font-weight:900;letter-spacing:.06em;margin-right:auto}.nav{display:flex;gap:18px;align-items:center}.nav a,.tool{color:var(--muted)}.tool{border:1px solid var(--line);background:var(--panel);border-radius:999px;padding:7px 11px}.nav-toggle{display:none;align-items:center;justify-content:center;line-height:1}.nav-backdrop{display:none;position:fixed;inset:0;background:#0008;z-index:15}.nav-backdrop.open{display:block}.hero{position:relative;display:grid;gap:clamp(28px,5vw,70px);align-items:center;padding:calc(54px * var(--space)) 0;overflow:hidden}.hero-copy{position:relative}.eyebrow,.kicker{color:var(--accent);font-weight:800;letter-spacing:.15em;text-transform:uppercase}h1{font-size:clamp(38px,5.2vw,70px);line-height:1.08;letter-spacing:-.035em;margin:14px 0 22px;overflow-wrap:anywhere}h2{line-height:1.25}.lead{font-size:clamp(17px,2vw,20px);color:var(--muted);max-width:780px}.hero-art{min-height:360px;border:1px solid var(--line);border-radius:calc(var(--radius) + 12px);background:linear-gradient(145deg,color-mix(in srgb,var(--accent) 22%,transparent),var(--panel));overflow:hidden;display:grid;place-items:center;position:relative}.hero-art img{width:100%;height:100%;object-fit:cover}.section{padding:calc(44px * var(--space)) 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:24px}.section-head p,.muted{color:var(--muted)}.cards{display:grid;gap:18px}.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:calc(25px * var(--space));transition:transform .2s,border-color .2s}.card:hover{transform:translateY(-3px);border-color:var(--accent)}.card-index{font-weight:900;color:var(--accent)}.card p{color:var(--muted)}.article{width:min(760px,92vw);margin:auto;padding:56px 0}.article h1{font-size:clamp(34px,5vw,58px)}.article-figure{margin:24px 0;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}.article-figure img{width:100%;display:block;object-fit:cover;max-height:420px}.article-body{font-size:18px}.article-body p{margin:1.2em 0}.crumbs{color:var(--muted);font-size:14px}.actions{display:flex;gap:10px;flex-wrap:wrap;margin:28px 0}.button{display:inline-block;background:var(--accent);color:hsl(var(--h) 40% 8%);border:0;border-radius:999px;padding:10px 17px;font-weight:800}.button.secondary{background:var(--panel);color:var(--ink);border:1px solid var(--line)}details{padding:16px 0;border-bottom:1px solid var(--line)}summary{font-weight:750;cursor:pointer}.search-layer{position:fixed;inset:0;background:#000b;z-index:20;display:none;padding:8vh 5vw}.search-layer.open{display:block}.search-box{max-width:760px;margin:auto;background:var(--panel);border:1px solid var(--line);padding:24px;border-radius:var(--radius)}.search-box input,.form input,.form textarea{width:100%;border:1px solid var(--line);background:var(--bg);color:var(--ink);border-radius:8px;padding:12px}.result{display:block;padding:14px 0;border-bottom:1px solid var(--line)}.form{display:grid;gap:14px;max-width:680px}.form label{display:grid;gap:5px}.hp{position:absolute;left:-9999px}footer{border-top:1px solid var(--line);padding:28px 0 40px;color:var(--muted);margin-top:50px}.hero{grid-template-columns:1.25fr .75fr}.cards{grid-template-columns:repeat(4,1fr)}.card:first-child,.card:last-child{grid-column:span 2}
.card{border-width:1px 0 0;border-radius:0;background:transparent}.hero-art{border-radius:0}.topbar{border:0}.nav a{font-size:13px;text-transform:uppercase;letter-spacing:.12em}
h1,h2,.brand{font-family:Inter,system-ui,"Microsoft YaHei",sans-serif}h1{font-size:clamp(36px,4.3vw,58px);line-height:1.1;letter-spacing:-.025em}
@media(max-width:800px){.nav-toggle{display:inline-flex}.nav{position:fixed;top:0;right:-100%;bottom:0;width:min(80vw,320px);flex-direction:column;align-items:flex-start;gap:22px;padding:88px 26px 26px;background:var(--panel);border-left:1px solid var(--line);transition:right .25s ease;z-index:16}.nav.open{right:0}.nav a{display:block;font-size:16px}.hero,.cards,.card{grid-template-columns:1fr!important}.card{grid-column:auto!important;transform:none!important}.hero-art{min-height:260px;position:relative}h1{font-size:clamp(32px,9vw,46px)}}

/* AI-generated per-site template layer */
body{
  background:#0a0e1a;
  color:#dbe3f0;
  font-family:-apple-system,"PingFang SC","Helvetica Neue",sans-serif;
  font-size:15px;
  line-height:1.7;
  margin:0;
  -webkit-font-smoothing:antialiased;
}
.topbar{
  position:sticky;top:0;z-index:50;
  height:60px;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 28px;
  background:rgba(10,14,26,0.82);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(139,92,246,0.14);
}
.topbar::before{
  content:"";position:absolute;inset:0 0 auto 0;height:2px;
  background:linear-gradient(90deg,#4f7cff,#8b5cf6,#4f7cff);
  background-size:200% 100%;
  animation:flow 9s linear infinite;
}
@keyframes flow{to{background-position:200% 0}}
.brand{
  font-family:"DIN Alternate","Arial Narrow","Helvetica Neue",sans-serif;
  font-size:16px;font-weight:700;letter-spacing:.04em;
  background:linear-gradient(135deg,#4f7cff,#8b5cf6);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.nav{display:flex;gap:28px;font-size:14px}
.nav a{
  color:#7b849c;text-decoration:none;position:relative;padding:6px 0;
  transition:color .2s;
}
.nav a:hover{color:#fff}
.nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,#4f7cff,#8b5cf6);
  transform:scaleX(0);transform-origin:left;transition:transform .25s;
}
.nav a:hover::after{transform:scaleX(1)}
.hero{
  position:relative;min-height:64vh;
  padding:64px 28px 40px;
  display:flex;flex-direction:column;align-items:center;text-align:center;
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;left:-25%;right:-25%;bottom:-35%;height:62%;
  background:linear-gradient(115deg,transparent 32%,rgba(79,124,255,0.10) 46%,rgba(139,92,246,0.13) 54%,transparent 68%);
  transform:skewY(-7deg);pointer-events:none;
}
.hero-copy{
  position:relative;z-index:2;max-width:680px;
  animation:fadeUp .8s ease both;
}
@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.hero-copy .eyebrow{
  font-size:13px;letter-spacing:.24em;color:#7b849c;text-transform:uppercase;
  font-family:"SF Mono","Menlo",monospace;
}
.hero-copy h1{
  font-family:"DIN Alternate","Arial Narrow","Helvetica Neue",sans-serif;
  font-size:40px;font-weight:800;letter-spacing:.01em;
  margin:14px 0 12px;color:#f3f6ff;line-height:1.2;
}
.hero-copy p{color:#7b849c;font-size:15px;margin:0}
.hero-copy .ticker{
  margin-top:20px;font-family:"SF Mono","Menlo",monospace;
  font-size:12px;color:#d4b87a;letter-spacing:.12em;
}
.hero-art{
  position:relative;z-index:2;width:100%;max-width:940px;margin-top:30px;
  display:grid;grid-template-columns:repeat(3,1fr);gap:16px;text-align:left;
}
.hero-art .card{padding:14px}
.hero-art .card .thumb{height:84px}
.section{
  padding:52px 28px;border-top:1px solid rgba(139,92,246,0.10);
}
.section h2{
  font-family:"DIN Alternate","Arial Narrow","Helvetica Neue",sans-serif;
  font-size:22px;font-weight:700;letter-spacing:.02em;
  margin:0 0 4px;color:#eef2ff;
}
.section .sub{
  font-size:12px;letter-spacing:.2em;color:#7b849c;text-transform:uppercase;
  margin-bottom:24px;font-family:"SF Mono","Menlo",monospace;
}
.cards{display:grid;gap:16px}
.cards.feature{grid-template-columns:1.4fr 1fr;grid-template-rows:auto auto auto}
.cards.feature .card:first-child{grid-row:span 3}
.cards.guide,.cards.topics{grid-template-columns:repeat(3,1fr)}
.cards.topics{grid-template-columns:repeat(4,1fr)}
.card{
  background:rgba(17,26,46,0.85);
  border:1px solid rgba(139,92,246,0.18);
  border-radius:10px;padding:18px;
  position:relative;overflow:hidden;
  transition:border-color .25s,transform .25s,box-shadow .25s;
  text-decoration:none;color:inherit;display:block;
}
.card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,#4f7cff,#8b5cf6);
  opacity:0;transition:opacity .25s;
}
.card:hover{
  border-color:rgba(79,124,255,0.55);
  transform:translateY(-3px);
  box-shadow:0 8px 28px rgba(79,124,255,0.12);
}
.card:hover::before{opacity:1}
.card.feature