:root {
  --bg: #f3f0e8;
  --paper: #fffdf8;
  --ink: #1c1915;
  --muted: #5e584e;
  --line: #e3dccf;
  --accent: #0d5c4c;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Segoe UI", "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 1.05rem;
  line-height: 1.65;
}

a { color: var(--accent); }

a:hover { text-decoration-thickness: 2px; }

.wrap {
  width: min(42rem, calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 1rem 0;
}

.brand {
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
  letter-spacing: -0.02em;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  font-size: 0.92rem;
}

.site-nav a { color: var(--muted); text-decoration: none; }

.site-nav a:hover { color: var(--accent); }

main { padding: 2.5rem 0 3rem; }

.eyebrow {
  margin: 0 0 0.5rem;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 5vw, 2.7rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
}

h2 {
  margin: 2rem 0 0.6rem;
  font-size: 1.25rem;
}

p { margin: 0.6rem 0; }

.zh { color: var(--ink); }

.card {
  margin-top: 1.5rem;
  padding: 1rem 1.1rem;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
}

.card strong { display: block; margin-bottom: 0.2rem; }

ul { margin: 0.4rem 0 0; padding-left: 1.2rem; }

li + li { margin-top: 0.35rem; }

.site-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
}

.site-footer .wrap { padding: 1.25rem 0 2rem; }

.site-footer nav { display: flex; flex-wrap: wrap; gap: 0.75rem 1rem; }