:root{--h:265;--ah:42;--sat:80%;--lit:48%;--radius:3px;--space:1;--max:1168px;--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:980px}.hero{grid-template-columns:1fr}.cards{grid-template-columns:repeat(2,1fr)}.card{border-left:4px solid var(--accent)}
.card,.hero-art{background:linear-gradient(145deg,#ffffff15,#ffffff06);backdrop-filter:blur(18px)}.topbar{border:0}.nav a{font-size:13px;text-transform:uppercase;letter-spacing:.12em}
h1,h2,.brand{font-family:Georgia,"Noto Serif SC","Songti SC",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: #14141A;
  color: #E8E6F0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(20, 20, 26, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  font-family: "Songti SC", "SimSun", "Noto Serif SC", Georgia, serif;
  font-size: 20px;
  font-weight: 500;
  color: #F5B553;
  letter-spacing: 1px;
  white-space: nowrap;
}

.nav {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  align-items: center;
}

.nav a {
  color: #9A96A8;
  text-decoration: none;
  font-size: 14px;
  letter-spacing: 0.5px;
  transition: color 0.2s;
}

.nav a:hover {
  color: #5EB8E6;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.hero {
  display: grid;
  grid-template-columns: 7fr 3fr;
  gap: 32px;
  padding: 40px 24px 48px;
  border-bottom: 1px solid rgba(94, 184, 230, 0.18);
}

.hero-copy {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.hero-copy .eyebrow {
  font-size: 12px;
  letter-spacing: 2px;
  color: #E8902E;
  text-transform: none;
  border-left: 3px solid #F5B553;
  padding-left: 10px;
}

.hero-copy h1 {
  font-family: "Songti SC", "SimSun", "Noto Serif SC", Georgia, serif;
  font-size: 30px;
  font-weight: 500;
  line-height: 1.3;
  margin: 0;
  color: #E8E6F0;
}

.hero-copy .data-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  margin-top: 4px;
  padding: 14px 16px;
  background: rgba(29, 29, 38, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 6px;
}

.hero-copy .data-row span {
  font-size: 13px;
  color: #9A96A8;
}

.hero-copy .data-row b {
  color: #F5B553;
  font-size: 20px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  display: block;
  margin-top: 2px;
}

.hero-art {
  background: rgba(29, 29, 38, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 12px;
}

.hero-art .thumb {
  background: linear-gradient(135deg, #1D1D26, #2A2538);
  border-radius: 6px;
  min-height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #6A5AE0;
  font-size: 12px;
}

.hero-art .caption {
  font-size: 11px;
  color: #9A96A8;
  text-align: center;
}

.section {
  padding: 44px 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.section h2 {
  font-family: "Songti SC", "SimSun", "Noto Serif SC", Georgia, serif;
  font-size: 22px;
  font-weight: 500;
  margin: 0 0 24px;
  padding-left: 12px;
  border-left: 3px solid #8A7DFF;
  color: #E8E6F0;
}

.section.guide h2 { border-left-color: #5EB8E6; }
.section.latest h2 { border-left-color: #7FD1A8; }
.section.faq h2 { border-left-color: #5EB8E6; }

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.cards.lab-grid {
  grid-template-columns: repeat(4, 1fr);
}

.card {
  background: rgba(29, 29, 38, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  padding: 18px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.25);
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: #5EB8E6;
}

.card.violet::before { background: #8A7DFF; }
.card.amber::before { background: #F5B553; }
.card.green::before { background: #7FD1A8; }

.card h3 {
  font-family: "Songti SC", "SimSun", "Noto Serif SC", Georgia, serif;
  font-size: 17px;
  font-weight: 500;
  margin: 0 0 8px;
  color: #E8E6F0;
}

.card p {
  font-size: 14px;
  color: #9A96A8;
  margin: 0 0 10px;
  line-height: 1.6;
}

.card .note {
  font-size: 11px;
  color: #6A6A78;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 8px;
  margin-top: 10px;
}

.card .num {
  position: absolute;
  top: 14px;
  right: 16px;
  font-size: 12px;
  color: #5EB8E6;
  font-variant-numeric: tabular-nums;
}

.card .bar {
  height: 4px;
  background: rgba(138, 125, 255, 0.15);
  border-radius: 2px;
  margin: 8px 0;
  overflow: hidden;
}

.card .bar i {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, #8A7DFF, #6A5AE0);
  border-radius: 2px;
}

.article {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 24px;
}

.article h1 {
  font-family: "Songti SC", "SimSun", "Noto Serif SC", Georgia, serif;
  font-size: 30px;
  font-weight: 500;
  line-height: 1.3;
  margin: 0 0 12px;
  color: #E8E6F0;
}

.article .breadcrumb {
  font-size: 12px;
  color: #6A6A78;
  margin-bottom: 16px;
}

.article .meta {
  font-size: 13px;
  color: #9A96A8;
  margin-bottom: 28px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.article-body p {
  font-size: 16px;
  line-height: 1.75;
  color: #E8E6F0;
  margin: 0 0 22px;
}

.article-body h2 {
  font-family: "Songti SC", "SimSun", "Noto Serif SC", Georgia, serif;
  font-size: 19px;
  font-weight: 500;
  margin: 28px 0 14px;
  color: #8A7DFF;
}

.article-body .inline-card {
  background: rgba(29, 29, 38, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-left: 3px solid #F5B553;
  border-radius: 6px;
  padding: 16px 18px;
  margin: 24px 0;
  font-size: 14px;
  color: #9A96A8;
}

.article-body .inline-card b {
  color: #F5B553;
  font-variant-numeric: tabular-nums;
}

.article-body .source-note {
  font-size: 12px;
  color: #6A6A78;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 14px;
  margin-top: 32px;
}

.article-body .related {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 24px;
}

.article-body .related a {
  color: #5EB8E6;
  text-decoration: none;
  font-size: 14px;
}

.article-body .related a:hover {
  text-decoration: underline;
}

.lead {
  font-size: 17px;
  line-height: 1.7;
  color: #9A96A8;
  margin: 0 0 16px;
  max-width: 60ch;
}

.button {
  display: inline-block;
  padding: 10px 22px;
  border: 1px solid #F5B553;
  border-radius: 4px;
  color: #F5B553;
  text-decoration: none;
  font-size: 14px;
  letter-spacing: 1px;
  background: transparent;
  transition: all 0.2s;
  margin-top: 4px;
}

.button:hover {
  background: rgba(245, 181, 83, 0.1);
  color: #E8E6F0;
  text-decoration: none;
}

footer {
  padding: 32px 24px;
  text-align: center;
  font-size: 12px;
  color: #6A6A78;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(20, 20, 26, 0.6);
}

@media (max-width: 768px) {
  body { font-size: 15px; }

  .topbar {
    flex-direction: column;
    align-items: flex-start;
    padding: 10px 16px;
    gap: 8px;
  }

  .nav {
    gap: 14px;
    font-size: 13px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    flex-wrap: nowrap;
    width: 100%;
    padding-bottom: 4px;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 24px 16px 32px;
  }

  .hero-copy h1 { font-size: 24px; }
  .hero-copy .data-row { gap: 6px 18px; padding: 12px; }
  .hero-copy .data-row b { font-size: 18px; }
  .hero-art .thumb { min-height: 140px; }

  .section { padding: 32px 16px; }
  .section h2 { font-size: 19px; }

  .cards, .cards.lab-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .article {
    padding: 32px 16px;
  }

  .article h1 { font-size: 24px; }
  .article-body p { font-size: 15px; line-height: 1.7; }

  .lead { font-size: 15px; }

  .button {
    display: block;
    text-align: center;
    width: 100%;
  }
}