body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "PingFang TC";
  background: #fff7f9;
  color: #333;
}

.top {
  text-align: center;
  padding: 16px;
}

.actions {
  margin-top: 10px;
}

.btn {
  display: inline-block;
  margin: 6px;
  padding: 10px 16px;
  border-radius: 14px;
  background: #fff;
  text-decoration: none;
  color: #333;
  font-weight: 600;
  box-shadow: 0 6px 14px rgba(0,0,0,.1);
}

.btn.primary {
  border: 2px solid #70B24D;
}

.steps {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin: 12px 0;
}

.steps button {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background: #70B24D;
  color: #fff;
  font-size: 16px;
  font-weight: bold;
}

.viewer {
  padding: 12px;
}

.viewer img {
  width: 100%;
  border-radius: 12px;
}

.viewer p {
  margin-top: 10px;
  font-size: 16px;
  text-align: center;
}

footer {
  text-align: center;
  font-size: 14px;
  padding: 16px;
  color: #666;
}