:root {
  color-scheme: light dark;
  --bg: #f8fafc;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --primary: #0f766e;
  --border: #dbe3ee;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1220;
    --card: #111a2f;
    --text: #e2e8f0;
    --muted: #94a3b8;
    --primary: #2dd4bf;
    --border: #26324a;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 24px 16px 56px;
}

h1, h2, h3 {
  margin-top: 0;
  line-height: 1.35;
}

h1 {
  font-size: 30px;
  margin-bottom: 8px;
}

h2 {
  margin-bottom: 10px;
  font-size: 22px;
}

p {
  margin-top: 0;
}

.meta {
  color: var(--muted);
  margin-bottom: 20px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 14px;
}

.contact-list,
.list {
  margin: 0;
  padding-left: 20px;
}

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

.note {
  color: var(--muted);
  font-size: 14px;
}

.footer {
  margin-top: 28px;
  font-size: 14px;
  color: var(--muted);
}