body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: system-ui, -apple-system, sans-serif;
  background: #5f4e1e;
  color: #fff;
}

.card {
  background: #fff;
  color: #5f4e1e;
  padding: 2.5rem 3rem;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  max-width: 480px;
  text-align: center;
}

.version {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: #5f4e1e;
  color: #fff;
  border-radius: 999px;
  font-weight: 600;
}

.desc {
  font-size: 0.9rem;
  line-height: 1.4;
  color: #444;
}

code {
  background: #eee;
  padding: 0.1rem 0.3rem;
  border-radius: 4px;
}

.test-image {
  max-width: 100%;
  border-radius: 8px;
  margin-top: 1rem;
}

button {
  margin-top: 1rem;
  padding: 0.6rem 1.2rem;
  border: none;
  border-radius: 6px;
  background: #5f4e1e;
  color: #fff;
  font-size: 1rem;
  cursor: pointer;
}

button:hover {
  opacity: 0.85;
}

pre {
  text-align: left;
  background: #f5f5f5;
  padding: 0.75rem;
  border-radius: 6px;
  margin-top: 1rem;
  min-height: 1.2rem;
  white-space: pre-wrap;
  word-break: break-word;
}