:root {
  color-scheme: light dark;
  --fg: #4a3324;
  --muted: #6b5344;
  --bg: #f7f0e0;
  --card: #fffaf0;
  --border: #e4d4bc;
  --link: #6b4423;
  --accent: #4a3324;
  --chip: #efe4d0;
}

@media (prefers-color-scheme: dark) {
  :root {
    --fg: #f0e2c8;
    --muted: #c4b39a;
    --bg: #1f1a14;
    --card: #2a231c;
    --border: #4a3d30;
    --link: #e0c49a;
    --accent: #dbc29e;
    --chip: #3a3128;
  }
}

* { box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial,
    "PingFang SC", "PingFang TC", "Hiragino Sans GB", "Noto Sans CJK SC", sans-serif;
  line-height: 1.65;
  color: var(--fg);
  background: var(--bg);
  margin: 0 auto;
  padding: 1.5rem 1rem 3rem;
  max-width: 44rem;
}

header {
  margin-bottom: 1.5rem;
  padding-bottom: 1.15rem;
  border-bottom: 1px solid var(--border);
}

.topbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.15rem;
}

nav.site {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.85rem;
  font-size: 0.9rem;
}

.lang-switch {
  display: flex;
  gap: 0.25rem;
  background: var(--chip);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.15rem;
}

.lang-switch a {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.22rem 0.5rem;
  border-radius: 6px;
  text-decoration: none;
  color: var(--muted);
}

.lang-switch a[aria-current="true"] {
  background: var(--card);
  color: var(--fg);
}

h1 {
  font-size: 1.5rem;
  margin: 0 0 0.45rem;
  font-weight: 600;
}

.subtitle {
  color: var(--muted);
  font-size: 0.95rem;
  margin: 0;
}

.badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  border: 1px solid var(--border);
  background: var(--chip);
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  margin-top: 0.75rem;
}

section,
article.legal {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem 1.35rem;
  margin-bottom: 1.25rem;
}

h2 {
  font-size: 1.1rem;
  margin: 0 0 0.75rem;
  font-weight: 600;
}

h3 {
  font-size: 1rem;
  margin: 1.1rem 0 0.5rem;
  font-weight: 600;
}

article.legal h3:first-of-type {
  margin-top: 0;
}

p, ul { margin: 0.5rem 0; font-size: 0.95rem; }
ul { padding-left: 1.25rem; }
li { margin: 0.28rem 0; }

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

.lead {
  font-size: 0.95rem;
  color: var(--muted);
  margin: 0 0 1rem;
}

.meta {
  font-size: 0.82rem;
  color: var(--muted);
  margin: 0 0 1rem;
}

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1rem;
  margin-top: 0.75rem;
}

footer {
  margin-top: 2rem;
  font-size: 0.8rem;
  color: var(--muted);
}

[hidden] { display: none !important; }