/* 音乐播放器CSS Start */
:root {
  --bg-color: rgba(255, 255, 255, 0.95);
  --text-color: #333;
  --secondary-color: #666;
  --control-bg: rgba(0, 0, 0, 0.1);
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  --border-color: rgba(127, 127, 127, 0.1);
  --transition-duration: 0.3s;
  --slide-distance: 320px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-color: rgba(30, 30, 30, 0.95);
    --text-color: #fff;
    --secondary-color: #aaa;
    --control-bg: rgba(255, 255, 255, 0.1);
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  }
}

/* 播放器容器 */
#player-container {
  position: fixed;
  left: 0;
  bottom: 20px;
  z-index: 1000;
  display: flex;
  align-items: flex-end;
  transition: var(--transition-duration);
}

/* 主播放器 */
#player {
  width: 320px;
  background: var(--bg-color);
  color: var(--text-color);
  backdrop-filter: blur(10px);
  border-radius: 15px;
  box-shadow: var(--shadow);
  padding: 15px;
  font-family: "Segoe UI", sans-serif;
  transition: transform var(--transition-duration),
    opacity var(--transition-duration);
  transform: translateX(calc(-1 * var(--slide-distance)));
  opacity: 0;
  pointer-events: none;
  border: 1px solid var(--border-color);
}

#player.active {
  transform: translateX(0);
  opacity: 1;
  pointer-events: auto;
}

/* 歌曲列表 */
.song-list {
  position: absolute;
  bottom: calc(100% + 10px);
  left: 0;
  right: 0;
  max-height: 50vh;
  overflow-y: auto;
  background: var(--bg-color);
  border-radius: 15px;
  box-shadow: var(--shadow);
  display: none;
  z-index: 1001;
  padding: 8px 0;
}

.song-list.show {
  display: block;
}

.song-item {
  padding: 12px;
  cursor: pointer;
  transition: background var(--transition-duration);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.song-item:hover,
.song-item.active {
  background: var(--control-bg);
}

.song-info {
  flex: 1;
  min-width: 0;
}

.song-name {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.song-artist {
  font-size: 0.8em;
  color: var(--secondary-color);
}

/* 折叠状态 */
#player.collapsed {
  transform: translateX(calc(-1 * var(--slide-distance)));
  opacity: 0;
  pointer-events: none;
}

/* 展开/收起按钮 */
#toggle-btn {
  opacity: 0.6;
  width: 40px;
  height: 40px;
  background: var(--bg-color);
  border-radius: 50%;
  display: flex;
  position: fixed;
  left: 20px;
  bottom: 20px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
  color: var(--text-color);
  transition: transform var(--transition-duration);
  margin-left: 10px;
}

#toggle-btn:hover {
  transform: scale(1.1);
}

/* 封面样式 */
.cover {
  width: 60px;
  height: 60px;
  border-radius: 8px;
  margin-right: 15px;
  animation: rotate 20s linear infinite;
  animation-play-state: paused;
}

@keyframes rotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.playing .cover {
  animation-play-state: running;
}

/* 歌曲信息 */
.info {
  flex: 1;
  min-width: 0;
}

.song-title {
  font-weight: 600;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.artist {
  font-size: 0.9em;
  color: var(--secondary-color);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 控制栏 */
.controls {
  margin-top: 15px;
  display: flex;
  align-items: center;
  gap: 10px;
}

/* 输入区域 */
.playlist-input {
  transition: var(--transition-duration);
  display: flex;
  gap: 10px;
}

.playlist-input.hidden {
  opacity: 0;
  pointer-events: none;
  height: 0;
  margin: 0;
  padding: 0;
}

#playlistId {
  flex: 1;
  padding: 8px 12px;
  border: 1px solid var(--control-bg);
  border-radius: 8px;
  background: transparent;
  color: var(--text-color);
}

/* 加载动画 */
.loader {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: none;
  width: 20px;
  height: 20px;
  border: 3px solid var(--control-bg);
  border-top: 3px solid var(--text-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  100% {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

.return-input {
  position: absolute;
  top: 15px;
  right: 15px;
  background: var(--control-bg);
  border-radius: 50%;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform var(--transition-duration);
}

.return-input:hover {
  transform: scale(1.1);
}