body {
  background-color: #000;
  color: #fff;
  font-family: Arial, sans-serif;
  text-align: center;
  padding: 20px;
}

input, button {
  background-color: #333;
  color: #fff;
  border: none;
  padding: 10px;
  margin: 5px;
}

button:hover {
  background-color: #555;
}

#feedback {
  color: #e91e63;
}

#guessList {
  list-style-type: none;
  padding: 0;
}

#guessList li {
  background-color: #222;
  color: #fff;
  margin: 5px 0;
  padding: 10px;
  border-radius: 5px;
}

/* 进度条样式 */
#progressBarContainer {
  width: 80%; /* 进度条宽度与界面一致 */
  height: 20px;
  background-color: #333;
  border-radius: 10px;
  margin: 20px auto; /* 居中显示 */
  overflow: hidden;
}

#progressBar {
  width: 20%; /* 默认显示第一段 */
  height: 100%;
  background-color: #31c27c;
  transition: width 0.3s ease;
}

/* 播放按钮样式 */
.play-btn {
  background-color: #31c27c;
  color: #fff;
  border: none;
  border-radius: 50%;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  margin: 10px auto;
  transition: transform 0.2s ease;
}

.play-btn:hover {
  transform: scale(1.1);
}

.play-icon {
  font-size: 20px;
  font-weight: bold;
}