/* ==================== 音乐播放器样式 ==================== */
#music-player {
  position: fixed;
  top: 50%;
  right: 0;
  z-index: 9999;
  transform: translateY(-50%);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

/* 折叠状态 - 仅显示图标按钮 */
#music-player .mp-toggle {
  position: absolute;
  top: 50%;
  right: 0;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  color: #fff;
  border: none;
  border-radius: 10px 0 0 10px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: -2px 0 12px rgba(240, 147, 251, 0.5);
  transition: all 0.3s ease;
  font-size: 18px;
  padding: 0;
}

#music-player .mp-toggle:hover {
  width: 44px;
  box-shadow: -4px 0 20px rgba(240, 147, 251, 0.7);
}

#music-player .mp-toggle .mp-icon,
#music-player .mp-toggle .mp-bars {
  display: none;
}

/* 展开状态 - 完整面板 */
#music-player .mp-panel {
  position: absolute;
  top: 50%;
  right: 48px;
  transform: translateY(-50%) translateX(20px);
  width: 320px;
  max-width: calc(100vw - 60px);
  background: linear-gradient(135deg, rgba(255, 200, 220, 0.95) 0%, rgba(230, 180, 255, 0.95) 100%);
  border-radius: 16px;
  padding: 16px;
  box-shadow: -4px 0 24px rgba(240, 147, 251, 0.3);
  opacity: 0;
  pointer-events: none;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

#music-player.expanded .mp-panel {
  transform: translateY(-50%) translateX(0);
  opacity: 1;
  pointer-events: auto;
}

#music-player.expanded .mp-toggle {
  border-radius: 12px 0 0 12px;
  background: linear-gradient(135deg, #f5576c 0%, #f093fb 100%);
}

/* 头部 - 歌单按钮 */
#music-player .mp-header {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  margin-bottom: 8px;
}

#music-player .mp-header .mp-title {
  display: none;
}

#music-player .mp-header .mp-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  color: #888;
  font-size: 16px;
  padding: 4px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s ease;
}

#music-player .mp-header .mp-btn:hover {
  color: #555;
}

#music-player .mp-header .mp-btn #mpClose {
  display: none;
}

#music-player .mp-header .mp-playlist-btn {
  position: relative;
}

#music-player .mp-header .mp-playlist-btn::after {
  content: '';
  position: absolute;
  top: -2px;
  right: -2px;
  width: 4px;
  height: 4px;
  background: #f5576c;
  border-radius: 50%;
}

/* 封面区域 */
#music-player .mp-cover {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 12px;
}

#music-player .mp-cover-img {
  width: 72px;
  height: 72px;
  border-radius: 8px;
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  background-size: cover;
  background-position: center;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

#music-player .mp-cover-info {
  flex: 1;
  min-width: 0;
  padding-top: 4px;
}

#music-player .mp-cover-info .mp-artist {
  font-size: 13px;
  color: #666;
  margin-bottom: 4px;
  font-weight: 500;
}

#music-player .mp-cover-info .mp-song {
  font-size: 16px;
  font-weight: 700;
  color: #222;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 4px;
}

#music-player .mp-cover-info .mp-lyric {
  font-size: 12px;
  color: #888;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.4;
}

/* 进度条 */
#music-player .mp-progress {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: #666;
  margin-bottom: 14px;
}

#music-player .mp-progress-bar {
  flex: 1;
  height: 3px;
  background: rgba(0, 0, 0, 0.15);
  border-radius: 2px;
  cursor: pointer;
  position: relative;
}

#music-player .mp-progress-fill {
  height: 100%;
  background: #333;
  border-radius: 2px;
  width: 0%;
  transition: width 0.1s linear;
}

#music-player .mp-progress-bar::after {
  content: '';
  position: absolute;
  left: 0%;
  top: 50%;
  width: 12px;
  height: 12px;
  background: #333;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: left 0.1s linear;
}

#music-player .mp-progress-bar:hover::after {
  width: 14px;
  height: 14px;
}

/* 控件 */
#music-player .mp-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-bottom: 14px;
}

#music-player .mp-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  color: #333;
  font-size: 18px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease, color 0.2s ease;
}

#music-player .mp-btn:hover {
  transform: scale(1.1);
  color: #111;
}

#music-player .mp-btn.mp-play {
  width: 56px;
  height: 56px;
  background: #333;
  color: #fff;
  font-size: 26px;
  border-radius: 50%;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
  transition: transform 0.2s ease, background 0.2s ease;
}

#music-player .mp-btn.mp-play:hover {
  transform: scale(1.08);
  background: #111;
  color: #fff;
}

#music-player .mp-btn.mp-prev,
#music-player .mp-btn.mp-next {
  font-size: 24px;
}

/* 音量 */
#music-player .mp-volume {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 0;
}

#music-player .mp-volume-icon {
  color: #666;
  font-size: 14px;
}

#music-player .mp-volume-slider {
  flex: 1;
  height: 4px;
  background: rgba(0, 0, 0, 0.15);
  border-radius: 2px;
  cursor: pointer;
  position: relative;
}

#music-player .mp-volume-fill {
  height: 100%;
  background: #333;
  border-radius: 2px;
  width: 70%;
}

#music-player .mp-volume-slider {
  --volume: 70%;
}

#music-player .mp-volume-slider::after {
  content: '';
  position: absolute;
  left: var(--volume, 70%);
  top: 50%;
  width: 14px;
  height: 14px;
  background: #333;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  transition: left 0.1s linear;
}

#music-player .mp-volume-slider:hover::after {
  width: 16px;
  height: 16px;
}

/* 歌单 */
#music-player .mp-playlist {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  border-top: 1px solid rgba(0, 0, 0, 0.08);
  margin-top: 12px;
  padding-top: 0;
}

#music-player .mp-playlist.open {
  max-height: 180px;
  overflow-y: auto;
  padding-top: 8px;
}

#music-player .mp-playlist::-webkit-scrollbar {
  width: 4px;
}

#music-player .mp-playlist::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.2);
  border-radius: 2px;
}

#music-player .mp-playlist-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 4px;
  font-size: 13px;
  color: #555;
  cursor: pointer;
  border-radius: 8px;
  transition: background 0.2s ease;
}

#music-player .mp-playlist-item:hover {
  background: rgba(255, 255, 255, 0.5);
}

#music-player .mp-playlist-item.active {
  color: #333;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.6);
}

#music-player .mp-playlist-item .mp-pl-index {
  width: 24px;
  text-align: center;
  color: #aaa;
  font-size: 11px;
  flex-shrink: 0;
}

#music-player .mp-playlist-item.active .mp-pl-index {
  color: #f5576c;
}

#music-player .mp-playlist-item .mp-pl-info {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

#music-player .mp-playlist-item .mp-pl-info .mp-pl-song {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 13px;
}

#music-player .mp-playlist-item .mp-pl-info .mp-pl-artist {
  font-size: 11px;
  color: #aaa;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#music-player .mp-playlist-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 4px;
  font-size: 12px;
  color: #888;
  font-weight: 600;
}

#music-player .mp-playlist-header .mp-toggle-list {
  cursor: pointer;
  color: #555;
}

#music-player .mp-playlist-header .mp-toggle-list:hover {
  text-decoration: underline;
}

#music-player .mp-toggle-list2 {
  display: none;
}

/* 响应式 - 移动端 */
@media (max-width: 768px) {
  #music-player .mp-panel {
    width: calc(100vw - 70px);
    right: 40px;
  }
}

#music-player *,
#music-player *::before,
#music-player *::after {
  box-sizing: border-box;
}