:root {
  --yellow: #fcc626;
  --ink: #111;
  --muted: #333;
  --card: #fff8e1;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "PingFang HK", "Noto Sans TC", "Helvetica Neue", sans-serif;
  background: var(--yellow);
  color: var(--ink);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.top {
  text-align: center;
  padding: 2.5rem 1rem 0.5rem;
}
.logo {
  display: block;
  margin: 0 auto 0.75rem;
  width: 120px;
  height: auto;
  object-fit: contain;
}
.brand {
  font-size: 2rem;
  font-weight: 800;
  margin: 0;
  letter-spacing: 0.08em;
}
.aka {
  margin: 0.25rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}
main {
  width: min(720px, 92vw);
  padding: 1rem 0 2.5rem;
  text-align: center;
}
h1 {
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  margin: 1rem 0 0.5rem;
}
.tagline {
  margin: 0 auto 1.75rem;
  max-width: 28em;
  line-height: 1.5;
  color: var(--muted);
}
.cards {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: 1fr;
  text-align: left;
}
@media (min-width: 640px) {
  .cards { grid-template-columns: repeat(3, 1fr); }
}
.cards article {
  background: var(--card);
  border: 2px solid #111;
  border-radius: 14px;
  padding: 1rem 1.1rem;
}
.cards h2 {
  margin: 0 0 0.4rem;
  font-size: 1.1rem;
}
.cards p { margin: 0; line-height: 1.45; font-size: 0.95rem; }
.cta { margin-top: 1.75rem; }
.btn {
  display: inline-block;
  background: #111;
  color: var(--yellow);
  text-decoration: none;
  font-weight: 700;
  padding: 0.85rem 1.4rem;
  border-radius: 999px;
  border: 2px solid #111;
}
.btn:hover { opacity: 0.9; }
.note {
  margin-top: 0.75rem;
  font-size: 0.85rem;
  color: var(--muted);
}
footer {
  margin-top: auto;
  padding: 1.25rem;
  font-size: 0.85rem;
  color: var(--muted);
}
footer a { color: var(--ink); }