.music-player {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 460px;
    background: rgba(255 255 255 / 0.85);
    backdrop-filter: saturate(180%) blur(20px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
    border-radius: 16px;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    z-index: 10000;
    user-select: none;
  }

  /* 专辑封面 */
  .album-cover {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    border-radius: 12px;
    background-size: cover;
    background-position: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  }

  /* 歌曲信息 */
  .song-info {
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-width: 120px;
    overflow: hidden;
  }
  .song-title {
    font-weight: 600;
    font-size: 15px;
    color: #111;
    margin-bottom: 2px;
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
    cursor: pointer;
    text-decoration: none;
    user-select: text;
  }
  .song-title:hover {
    text-decoration: underline;
  }
  .song-artist {
    font-size: 13px;
    color: #666;
    user-select: text;
  }


  /* 控件组 */
  .controls {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
  }

  .top-controls {
    display: flex;
    align-items: center;
    gap: 15px;
  }

  .btn-playpause {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: none;
    background: #f0f0f3;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    color: #444;
    font-size: 20px;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: background 0.3s, color 0.3s;
  }
  .btn-playpause:hover {
    background: #e2e2e6;
    color: #000;
  }

  .progress-container {
    height: 6px;
    background: #ddd;
    border-radius: 3px;
    cursor: pointer;
    position: relative;
  }
  .progress {
    height: 100%;
    background: #3b82f6;
    width: 0%;
    border-radius: 3px;
    transition: width 0.1s linear;
  }

  .time-container {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: #555;
    user-select: none;
    margin-top: 2px;
  }

  .volume-container {
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .btn-mute {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 18px;
    color: #666;
    transition: color 0.3s;
  }
  .btn-mute:hover {
    color: #000;
  }

  input[type=range] {
    -webkit-appearance: none;
    width: 70px;
    height: 6px;
    background: #ddd;
    border-radius: 3px;
    cursor: pointer;
    transition: background 0.3s;
  }
  input[type=range]:hover {
    background: #ccc;
  }
  input[type=range]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 14px;
    height: 14px;
    background: #3b82f6;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 2px rgba(0,0,0,0.4);
    transition: background 0.3s;
    margin-top: -4px;
  }
  input[type=range]::-webkit-slider-thumb:hover {
    background: #2563eb;
  }
  input[type=range]::-moz-range-thumb {
    width: 14px;
    height: 14px;
    background: #3b82f6;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 2px rgba(0,0,0,0.4);
    transition: background 0.3s;
  }
  input[type=range]::-moz-range-thumb:hover {
    background: #2563eb;
  }