body {
  margin: 0;
  background: #f4efe4;
  color: #24180f;
  font: 18px/1.5 "Segoe UI", "Microsoft JhengHei", sans-serif;
}
main {
  max-width: 40rem;
  margin: 0 auto;
  padding: 3rem 1.25rem;
}
h1 { margin-bottom: 0.4rem; }
.button {
  display: inline-block;
  margin: 1.25rem 0;
  padding: 0.8rem 1.2rem;
  background: #1f4d32;
  color: #fff;
  text-decoration: none;
  font-weight: 700;
}
dl { display: grid; grid-template-columns: 7rem 1fr; gap: 0.4rem 1rem; }
dt { color: #5c4a38; }
#sha { word-break: break-all; font-family: Consolas, monospace; font-size: 0.85rem; }