:root {
  --ink: #f7f7f2;
  --muted: rgba(247, 247, 242, 0.68);
  --paper: #101010;
  --panel: rgba(255, 255, 255, 0.045);
  --accent: #b43b2f;
  --line: rgba(255, 255, 255, 0.14);
  --gold: #f7cf83;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  display: grid;
  place-items: center;
  padding: clamp(24px, 6vw, 72px);
  color: var(--ink);
  background:
    radial-gradient(circle at 50% 12%, rgba(247, 207, 131, 0.12), transparent 30rem),
    radial-gradient(circle at 50% 72%, rgba(75, 209, 138, 0.08), transparent 24rem),
    linear-gradient(180deg, #101010 0%, #141414 48%, #0d0d0d 100%);
  font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", Arial, sans-serif;
}

.qr-page {
  width: min(720px, 100%);
  display: grid;
  gap: 22px;
  justify-items: center;
  text-align: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: clamp(28px, 6vw, 56px);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent 38%),
    var(--panel);
  box-shadow: 0 26px 70px rgba(0, 0, 0, 0.46);
}

h1 {
  margin: 0;
  color: #fff;
  font-size: clamp(1.35rem, 6vw, 3.1rem);
  line-height: 1.14;
  letter-spacing: 0;
  white-space: nowrap;
}

.qr-page img {
  width: min(520px, calc(100vw - 96px), 100%);
  aspect-ratio: 1 / 1;
  object-fit: contain;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.34);
}

.note {
  margin: 0;
  color: var(--muted);
  font-size: clamp(1rem, 3vw, 1.35rem);
  font-weight: 800;
}

@media (max-width: 600px) {
  body {
    padding: 16px;
  }

  .qr-page {
    padding: 22px 16px;
  }

  .qr-page img {
    width: min(300px, 100%);
  }
}