:root {
  --bg: #f2f3ee;
  --paper: #ffffff;
  --ink: #15241d;
  --muted: #5b6b63;
  --line: #e3e7e0;
  --link: #1973e8;
  --link-deep: #0f5bb8;
  --soft: #e7f1fc;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Iowan Old Style", "Palatino Linotype", Palatino, "Songti SC", "Source Han Serif SC", serif;
  font-size: 1.125rem;
  line-height: 1.65;
}

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

a:hover { color: var(--link-deep); }

.wrap {
  width: min(42rem, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.25rem 0 4rem;
}

header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: baseline;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--line);
}

.mark {
  font-weight: 650;
  letter-spacing: 0.01em;
  text-decoration: none;
  color: var(--ink);
}

.langs {
  display: flex;
  gap: 0.75rem;
  font-family: ui-sans-serif, system-ui, sans-serif;
  font-size: 0.9rem;
}

.langs a { text-decoration: none; }

h1 {
  font-size: 2.4rem;
  line-height: 1.15;
  font-weight: 650;
  margin: 1.6rem 0 0.4rem;
}

.en-name {
  margin: 0 0 1.5rem;
  color: var(--muted);
  font-family: ui-sans-serif, system-ui, sans-serif;
  font-size: 0.95rem;
}

article {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1.4rem 1.35rem 0.4rem;
}

h2 {
  font-size: 1.35rem;
  line-height: 1.3;
  margin: 1.6rem 0 0.45rem;
}

p, li { margin: 0.45rem 0; }

ul { padding-left: 1.2rem; }

.meta {
  color: var(--muted);
  font-family: ui-sans-serif, system-ui, sans-serif;
  font-size: 0.92rem;
}

hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 2.2rem 0;
}

footer {
  margin-top: 1.4rem;
  color: var(--muted);
  font-family: ui-sans-serif, system-ui, sans-serif;
  font-size: 0.88rem;
}