:root{--h:216;--ah:184;--sat:73%;--lit:57%;--radius:25px;--space:1;--max:981px;--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}.shell{max-width:900px}.hero{grid-template-columns:1fr}.hero-art{min-height:200px}.cards{grid-template-columns:1fr}.card{padding-left:0;padding-right:0;border-width:0 0 1px;border-radius:0;background:transparent}
.card{border-width:1px 0 0;border-radius:0;background:transparent}.hero-art{border-radius:0}.topbar{margin-top:16px;padding:14px 18px;border:1px solid var(--line);border-radius:999px;background:var(--panel)}
h1,h2,.brand{font-family:"Arial Narrow","Microsoft YaHei",system-ui,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 {
  margin: 0;
  background: #0B1220;
  color: #C7D2E0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  letter-spacing: 0.01em;
}

.topbar {
  position: fixed;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  width: min(1200px, 92vw);
  z-index: 60;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 18px;
  background: rgba(11, 18, 32, 0.82);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(91, 108, 255, 0.22);
  border-radius: 14px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
}

.brand {
  font-weight: 800;
  letter-spacing: 0.4px;
  font-size: 18px;
  white-space: nowrap;
  padding-left: 22px;
  position: relative;
  background: linear-gradient(135deg, #5B6CFF, #A855F7);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.brand::before {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 14px; height: 14px;
  border-radius: 50% 50% 50% 0;
  background: linear-gradient(135deg, #22D3EE, #5B6CFF);
  box-shadow: 0 0 12px rgba(91, 108, 255, 0.7);
}

.nav {
  display: flex;
  gap: 4px;
  margin-left: auto;
  flex-wrap: wrap;
  align-items: center;
}
.nav a {
  color: #C7D2E0;
  text-decoration: none;
  font-size: 14px;
  padding: 7px 13px;
  border-radius: 9px;
  border: 1px solid transparent;
  transition: all 0.2s;
}
.nav a:hover, .nav a.active {
  color: #fff;
  background: linear-gradient(135deg, rgba(91, 108, 255, 0.22), rgba(168, 85, 247, 0.22));
  border-color: rgba(91, 108, 255, 0.5);
}

.hero {
  margin: 110px auto 32px;
  padding: 36px 28px;
  max-width: 1200px;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 36px;
  align-items: center;
  min-height: 58vh;
  border-radius: 18px;
  background: radial-gradient(ellipse at 80% 20%, rgba(91, 108, 255, 0.16), transparent 55%),
              radial-gradient(ellipse at 10% 90%, rgba(34, 211, 238, 0.10), transparent 50%),
              #0E1626;
  border: 1px solid rgba(91, 108, 255, 0.18);
  box-shadow: 0 24px 60px rgba(0,0,0,0.5);
}

.hero-copy { display: flex; flex-direction: column; gap: 14px; }
.hero-copy h1 {
  font-size: clamp(28px, 4.2vw, 46px);
  line-height: 1.14;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin: 0;
  color: #EAF0FF;
}
.hero-copy h1 span {
  background: linear-gradient(135deg, #5B6CFF, #A855F7);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-copy p {
  font-size: 16px;
  color: #8896AC;
  line-height: 1.75;
  margin: 0;
  max-width: 46ch;
}
.hero-copy .meta {
  display: flex;
  gap: 10px;
  font-size: 13px;
  color: #8896AC;
  align-items: center;
  flex-wrap: wrap;
}
.hero-copy .meta b {
  font-weight: 600;
  color: #22D3EE;
  padding: 3px 10px;
  border: 1px solid rgba(34, 211, 238, 0.4);
  border-radius: 999px;
}

.hero-art {
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(91, 108, 255, 0.3);
  box-shadow: 0 20px 50px rgba(91, 108, 255, 0.18);
  min-height: 300px;
  background: linear-gradient(135deg, #121A2B, #0B1220);
  position: relative;
}
.hero-art::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 40%, rgba(168, 85, 247, 0.25), transparent 60%);
  pointer-events: none;
}

.section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 44px 24px;
}
.section h2 {
  font-size: 24px;
  font-weight: 800;
  color: #EAF0FF;
  margin: 0 0 20px;
  padding-left: 14px;
  border-left: 4px solid #5B6CFF;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.card {
  background: #121A2B;
  border: 1px solid rgba(91, 108, 255, 0.18);
  border-radius: 12px;
  padding: 20px;
  transition: all 0.25s;
  box-shadow: 0 4px 14px rgba(0,0,0,0.32);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.card:hover {
  border-color: #5B6CFF;
  box-shadow: 0 10px 30px rgba(91, 108, 255, 0.24);
  transform: translateY(-3px);
}
.card h3 {
  margin: 0;
  font-size: 17px;
  color: #EAF0FF;
  font-weight: 700;
  line-height: 1.3;
}
.card p { margin: 0; font-size: 14px; color: #8896AC; line-height: 1.65; }
.card small {
  font-size: 12px;
  color: #22D3EE;
  letter-spacing: 0.04em;
}

.article {
  max-width: 780px;
  margin: 0 auto;
  padding: 90px 24px 60px;
}
.article h1 {
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1.2;
  font-weight: 800;
  color: #EAF0FF;
  margin: 0 0 14px;
  letter-spacing: -0.3px;
}

.article-body {
  font-size: 16.5px;
  line-height: 1.85;
  color: #C7D2E0;
}
.article-body h2 {
  font-size: 22px;
  margin: 34px 0 14px;
  color: #EAF0FF;
  border-left: 3px solid #5B6CFF;
  padding-left: 12px;
  font-weight: 700;
}
.article-body h3 {
  font-size: 18px;
  margin: 24px 0 10px;
  color: #A855F7;
}
.article-body p { margin: 0 0 20px; }
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 18px 0;
  font-size: 14px;
  background: #121A2B;
  border: 1px solid rgba(91, 108, 255, 0.2);
  border-radius: 8px;
  overflow: hidden;
}
.article-body th {
  background: #1A2440;
  color: #EAF0FF;
  padding: 10px 14px;
  text-align: left;
  font-weight: 600;
}
.article-body td {
  padding: 9px 14px;
  border-top: 1px solid rgba(91, 108, 255, 0.12);
}
.article-body tr:nth-child(even) td { background: rgba(91, 108, 255, 0.05); }
.article-body td:last-child, .article-body th:last-child { text-align: right; font-variant-numeric: tabular-nums; }
.article-body blockquote {
  margin: 18px 0;
  padding: 12px 18px;
  border-left: 3px solid #22D3EE;
  background: rgba(34, 211, 238, 0.06);
  color: #C7D2E0;
  border-radius: 0 8px 8px 0;
}

.lead {
  font-size: 18px;
  color: #A8B5CC;
  border-left: 3px solid #22D3EE;
  padding-left: 16px;
  margin: 16