.sound-control {
  text-align: center;
  margin-top: 5px;
  margin-bottom: 5px;
}

.bgm-button {
  font-family: "serif";
  font-size: 16px;
  background: #f3f3ec;
  border: 1px solid #ccc;
  padding: 8px 16px;
  border-radius: 10px;
  color: #5c4e3d;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 1px 1px 4px rgba(0,0,0,0.1);
}

.bgm-button:hover {
  background: #ece9d8;
}