.little-music-player {
  display: flex;
  background-color: #0A4040;
  width: 100%;
  max-width: 500px;
  margin: 20px auto;
  border-radius: 8px;
  padding: 10px;
  box-sizing: border-box;
  font-family: -apple-system, BlinkMacSystemFont, Roboto, sans-serif;
}
.player-thumbnail img {
  width: 135px;
  height: 135px;
  margin: 0;
  border-radius: 10px;
  object-fit: cover;
  object-view-box: inset(13% 20% 13% 20%);
  display: block;
}
.player-controls {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-left: 16px;
}
.track-title {
  font-weight: bold;
  font-size: 16px;
  color: #fff;
}
.track-artist {
  font-size: 15px;
  color: #b3b3b3;
  margin-top: 4px;
}
.control-btn {
  background: #666;
  border: none;
  border-radius: 50%;
  width: 32px;
  height: 32px;
  cursor: pointer;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.2s;
}
.control-btn:hover { transform: scale(1.05); }
.progress-container {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: #b3b3b3;
}
.progress-bar-bg {
  flex: 1;
  background-color: #4f4f4f;
  height: 4px;
  margin: 0 8px;
  border-radius: 2px;
  position: relative;
  cursor: pointer;
}
.progress-bar-fill {
  background-color: #1db954; /* Spotify 綠 */
  height: 100%;
  width: 0%;
  border-radius: 2px;
}