:root {
  --bg: #0b0e12;
  --fg: #eef2f6;
  --muted: rgba(238,242,246,.7);
  --line: rgba(238,242,246,.12);
  --card: rgba(238,242,246,.05);
  --radius: 12px;
  --accent: rgba(99, 179, 237, 0.15);
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #ffffff;
    --fg: #0c1117;
    --muted: rgba(12,17,23,.65);
    --line: rgba(12,17,23,.1);
    --card: rgba(12,17,23,.035);
    --accent: rgba(13, 110, 253, 0.08);
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  font-size: 15px;
}

.top {
  padding: 16px 20px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,0));
  position: sticky;
  top: 0;
  backdrop-filter: blur(10px);
  z-index: 10;
}

.brand { 
  display: flex; 
  gap: 14px; 
  align-items: center; 
  max-width: 1200px; 
  margin: 0 auto;
}

.logoLink {
  display: block;
  transition: opacity 0.2s ease;
  line-height: 0;
}

.logoLink:hover {
  opacity: 0.8;
}

.logo { 
  width: 56px; 
  height: 56px; 
  border-radius: 14px; 
  object-fit: cover; 
  border: 1px solid var(--line);
  box-shadow: 0 2px 8px rgba(0,0,0,.1);
}

.brandName { 
  font-weight: 800; 
  font-size: 17px; 
  letter-spacing: .3px;
  color: var(--fg);
}

.brandNote { 
  font-size: 13px; 
  color: var(--muted); 
  margin-top: 2px;
  font-weight: 500;
}

.wrap { 
  max-width: 1200px; 
  margin: 0 auto; 
  padding: 24px 20px 40px;
}

.intro h1 { 
  font-size: 28px; 
  margin: 0 0 16px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.02em;
}

.intro p { 
  margin: 0 0 14px; 
  color: var(--muted);
  font-size: 16px;
  line-height: 1.7;
}

.panel { 
  margin-top: 40px; 
  padding-top: 24px; 
  border-top: 1px solid var(--line);
}

.panel h2 { 
  margin: 0 0 16px; 
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.panel h3 {
  margin: 24px 0 12px;
  font-size: 18px;
  font-weight: 600;
  color: var(--fg);
}

.panel p { 
  margin: 0 0 14px; 
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

.small { 
  font-size: 13px;
  line-height: 1.6;
}

.grid { 
  display: grid; 
  gap: 12px; 
  margin-top: 16px;
}

.card {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 14px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  transition: all 0.2s ease;
}

.card:hover {
  background: var(--accent);
  border-color: rgba(238,242,246,.2);
}

@media (prefers-color-scheme: light) {
  .card:hover {
    border-color: rgba(12,17,23,.15);
  }
}

.ico { 
  width: 32px; 
  height: 32px; 
  border-radius: 8px; 
  object-fit: contain; 
  background: rgba(255,255,255,.04);
  border: 1px solid var(--line);
}

.cBody { min-width: 0; }

.cTop { 
  display: flex; 
  gap: 10px; 
  align-items: baseline; 
  flex-wrap: wrap;
}

.cName { 
  font-weight: 700;
  font-size: 14.5px;
  color: var(--fg);
}

.pill { 
  font-size: 11.5px; 
  color: var(--muted); 
  border: 1px solid var(--line); 
  padding: 3px 9px; 
  border-radius: 999px;
  font-weight: 500;
  background: rgba(255,255,255,.02);
}

.cUrl { 
  margin-top: 6px; 
  color: var(--muted); 
  font-size: 12.5px;
}

.cUrl code { 
  white-space: normal; 
  word-break: break-word;
  font-family: ui-monospace, 'Cascadia Code', 'Source Code Pro', Menlo, Consolas, monospace;
  font-size: 12px;
}

.cDesc { 
  margin-top: 8px; 
  color: var(--fg); 
  opacity: .88; 
  font-size: 14px;
  line-height: 1.6;
}

.figure { 
  margin: 24px 0 20px;
}

.figure img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  display: block;
  box-shadow: 0 4px 12px rgba(0,0,0,.08);
}

.figure figcaption { 
  margin-top: 10px; 
  font-size: 13px; 
  color: var(--muted);
  font-style: italic;
}

.foot { 
  margin-top: 48px; 
  padding-top: 24px; 
  border-top: 1px solid var(--line);
}

@media (max-width: 768px) {
  .intro h1 {
    font-size: 24px;
  }
  
  .panel h2 {
    font-size: 20px;
  }
  
  .wrap {
    padding: 20px 16px 32px;
  }
}