:root {
  --yellow: #fbc032;
  --brown: #451a1c;
  --bg: #fffdf7;
  --surface: #ffffff;
  --text: #2b1d1d;
  --muted: #6b5a59;
  --line: #eadfce;
  --link: #8a4b00;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1b1514;
    --surface: #251d1c;
    --text: #f3ebe4;
    --muted: #c2b3ad;
    --line: #3d3130;
    --link: #fbc032;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", "Noto Sans TC", "PingFang HK", "Microsoft JhengHei", sans-serif;
  line-height: 1.7;
}

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 20px 64px;
}

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

header.hero {
  display: flex;
  gap: 20px;
  align-items: center;
  margin-bottom: 24px;
}

header.hero img {
  width: 88px;
  height: 88px;
  border-radius: 22px;
  flex: none;
}

h1 {
  margin: 0;
  font-size: 2rem;
  line-height: 1.3;
}

h2 {
  margin-top: 40px;
  font-size: 1.3rem;
}

h3 {
  margin-top: 28px;
  font-size: 1.05rem;
}

.tagline {
  margin: 4px 0 0;
  color: var(--muted);
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px 20px;
  margin: 16px 0;
}

.button {
  display: inline-block;
  background: var(--brown);
  color: #fff;
  padding: 10px 18px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
}

.button[aria-disabled="true"] {
  opacity: 0.55;
  pointer-events: none;
}

.lang {
  text-align: right;
  font-size: 0.95rem;
}

.muted {
  color: var(--muted);
}

hr {
  border: none;
  border-top: 1px solid var(--line);
  margin: 48px 0;
}

footer {
  margin-top: 48px;
  color: var(--muted);
  font-size: 0.9rem;
}

table {
  border-collapse: collapse;
  width: 100%;
}

th,
td {
  text-align: left;
  vertical-align: top;
  padding: 8px;
  border-bottom: 1px solid var(--line);
}