:root {
  --bg: #FFF9F0;
  --primary: #2D2620;
  --secondary: #8A7B6E;
  --accent: #F4A23A;
  --stroke: #EDE2D0;
  --surface: #FFFEFC;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font: 16px/1.75 -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}

body {
  background: var(--bg);
  color: var(--primary);
  padding: 48px 24px;
}

main { max-width: 720px; margin: 0 auto; }

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 720px;
  margin: 0 auto 48px;
  flex-wrap: wrap;
  gap: 16px;
}

.site-brand a {
  font-size: 20px;
  font-weight: 600;
  color: var(--primary);
  text-decoration: none;
  border-bottom: none;
}

.site-nav { display: flex; gap: 24px; font-size: 14px; }
.site-nav a { color: var(--secondary); text-decoration: none; border-bottom: none; }
.site-nav a:hover, .site-nav a.active { color: var(--accent); }

.hero { text-align: center; margin-bottom: 64px; }
.hero h1 {
  font-size: 52px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
  color: var(--accent);
}
.accent { display: inline-block; width: 32px; height: 2px; background: var(--accent); margin: 8px 0 18px; }
.tagline { font-size: 18px; color: var(--secondary); font-weight: 400; }

section { margin-bottom: 48px; }
h2 { font-size: 22px; font-weight: 600; margin-bottom: 8px; color: var(--primary); }
h2 + .accent { margin-bottom: 18px; }
h3 { font-size: 16px; font-weight: 600; color: var(--primary); margin-top: 24px; margin-bottom: 6px; }

p { margin-bottom: 14px; color: var(--primary); font-weight: 400; }
p.muted, p em { color: var(--secondary); font-style: normal; }
p em { font-style: italic; }

ul, ol { padding-left: 22px; margin-bottom: 14px; }
li { margin-bottom: 6px; font-weight: 400; }

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(244, 162, 58, 0.35);
}
a:hover { border-bottom-color: var(--accent); }

strong { font-weight: 600; color: var(--primary); }
code {
  font-family: "SF Mono", ui-monospace, Menlo, monospace;
  font-size: 14px;
  background: rgba(45, 38, 32, 0.06);
  padding: 1px 6px;
  border-radius: 4px;
}

.feature { display: flex; gap: 14px; margin-bottom: 22px; align-items: flex-start; }
.feature-icon { font-size: 22px; width: 28px; text-align: center; flex-shrink: 0; }
.feature-text strong { display: block; margin-bottom: 4px; color: var(--primary); font-weight: 600; }
.feature-text span { color: var(--secondary); font-weight: 400; font-size: 14px; }

.site-footer {
  max-width: 720px;
  margin: 80px auto 0;
  padding-top: 24px;
  border-top: 1px solid var(--stroke);
  color: var(--secondary);
  font-size: 13px;
  text-align: center;
}
.site-footer a { color: var(--secondary); border-bottom-color: transparent; }
.site-footer a:hover { color: var(--accent); border-bottom-color: var(--accent); }

@media (max-width: 600px) {
  body { padding: 32px 16px; }
  .hero h1 { font-size: 40px; }
  .tagline { font-size: 15px; }
  .site-header { flex-direction: column; text-align: center; }
  .site-nav { justify-content: center; }
}