/* ============================================================
 * 音乐片段播放器页 · 专属样式
 * ============================================================ */

/* ---------- 越剧主题：酒红描金 + 楷体 ---------- */
body.yueju-theme {
  --accent: #8e3b46;
  --gradient-primary: linear-gradient(135deg, #a63a45 0%, #c9813f 100%);
  --shadow-glow: 0 0 20px rgba(201, 129, 63, 0.35);
  --kaiti: "KaiTi", "STKaiti", "楷体", "FZKai-Z03", serif;
}

body.yueju-theme .song-meta h3,
body.yueju-theme .lyrics-head,
body.yueju-theme .sub-title,
body.yueju-theme .pl-info b {
  font-family: var(--kaiti);
}

.player-page .hero {
  position: relative;
  text-align: center;
  margin-bottom: 26px;
}

.player-page .hero .section-title {
  display: inline-block;
  border-bottom: none;
}

.hero-sub {
  color: var(--sub);
  font-size: 14px;
  margin-top: 4px;
}

/* 歌单模式顶部返回链接 */
.back-to-playlist {
  position: absolute;
  left: 0;
  top: 0;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 12px;
  padding: 5px 14px 5px 7px;
  border: 1px solid var(--border);
  border-radius: 50px;
  background: var(--card);
  color: var(--accent);
  text-decoration: none;
  font-size: 13.5px;
  transition: all var(--transition-fast);
}
.back-to-playlist:hover {
  border-color: var(--accent);
  transform: translateX(-3px);
  box-shadow: var(--shadow-soft);
}
.back-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: #fff;
  font-size: 12px;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.player-layout {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 22px;
  align-items: stretch;
}

/* ---------- 左侧：播放器主面板 ---------- */
.player-main {
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px 26px;
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(10px);
  display: flex;
  flex-direction: column;
  gap: 18px;
  text-align: center;
}

.disc-wrap {
  display: flex;
  justify-content: center;
}

.disc {
  --disc-angle: 135deg;
  width: 168px;
  height: 168px;
  border-radius: 50%;
  background: conic-gradient(
    #2c2c34,
    #4a4a5a,
    #2c2c34,
    #56566a,
    #2c2c34
  );
  background: conic-gradient(
    from var(--disc-angle),
    #2c2c34,
    #56566a,
    #2c2c34,
    #6a6a80,
    #2c2c34
  );
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease;
}

.disc::after {
  content: '';
  position: absolute;
  inset: 14px;
  border-radius: 50%;
  background: repeating-radial-gradient(
    circle,
    rgba(255, 255, 255, 0.06) 0 2px,
    transparent 2px 8px
  );
}

.disc-hole {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--card);
  border: 2px solid var(--border);
  z-index: 1;
}

.disc-label {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 76px;
  height: 76px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  z-index: 0;
}

.disc-label img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
}

.disc.spinning {
  animation: disc-spin 8s linear infinite;
}

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

.song-meta h3 {
  font-size: 19px;
  margin-bottom: 2px;
}

.song-meta p {
  color: var(--sub);
  font-size: 13.5px;
}

.play-status {
  margin-top: 4px;
  font-size: 12px !important;
}

/* ---------- 进度与音量 ---------- */
.progress-row,
.volume-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.time {
  font-size: 12px;
  color: var(--sub);
  min-width: 40px;
}

.progress-bar,
.volume-bar {
  flex: 1;
  appearance: none;
  -webkit-appearance: none;
  height: 6px;
  border-radius: 3px;
  background: var(--border);
  outline: none;
  cursor: pointer;
}

.progress-bar::-webkit-slider-thumb,
.volume-bar::-webkit-slider-thumb {
  appearance: none;
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--gradient-primary);
  border: none;
  box-shadow: var(--shadow-glow);
  cursor: pointer;
}

.vol-icon {
  font-size: 14px;
}

.mode-btn {
  flex-shrink: 0;
  padding: 6px 14px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--sub);
  border-radius: 16px;
  font-size: 12px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.mode-btn:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* ---------- 控制按钮 ---------- */
.controls {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 26px;
}

.ctrl-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  font-size: 16px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.ctrl-btn:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.ctrl-btn.play {
  width: 64px;
  height: 64px;
  background: var(--gradient-primary);
  border-color: transparent;
  color: #fff;
  font-size: 20px;
  box-shadow: var(--shadow-glow);
}

.ctrl-btn.play:hover {
  transform: translateY(-2px) scale(1.05);
}

.empty-tips {
  font-size: 12.5px;
  color: var(--sub);
  background: rgba(255, 182, 193, 0.12);
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  line-height: 1.8;
  text-align: left;
}

.empty-tips code {
  background: var(--card);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 12px;
}

/* ---------- 右侧：歌词面板 ---------- */
.lyrics-panel {
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(10px);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.lyrics-head {
  text-align: center;
  font-size: 14px;
  letter-spacing: 8px;
  color: var(--accent);
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}

.lyrics-box {
  flex: 1;
  min-height: 380px;
  max-height: 460px;
  overflow-y: auto;
  padding: 22px 18px;
  scroll-behavior: smooth;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.lyric-line {
  font-size: 16px;
  color: var(--sub);
  text-align: center;
  line-height: 1.7;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 8px;
  transition: all var(--transition-normal);
  opacity: 0.55;
}

.lyric-line:hover {
  opacity: 0.85;
}

.lyric-line.active {
  color: #fff;
  background: var(--gradient-primary);
  opacity: 1;
  transform: scale(1.06);
  box-shadow: var(--shadow-glow);
  font-weight: 600;
}

.lyric-empty {
  text-align: center;
  color: var(--sub);
  font-size: 13px;
  margin: auto;
  padding: 40px 10px;
}

/* ---------- 播放列表 ---------- */
.playlist-section {
  margin-top: 26px;
}

.sub-title {
  font-size: 16px;
  margin-bottom: 14px;
  color: var(--text);
}

.playlist {
  display: grid;
  gap: 10px;
}

.playlist-item {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: var(--radius-md);
  cursor: pointer;
  color: var(--text);
  font: inherit;
  text-align: left;
  transition: all var(--transition-fast);
}

.playlist-item:hover {
  border-color: var(--accent);
  transform: translateX(4px);
}

.playlist-item.active {
  border-color: transparent;
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: var(--shadow-glow);
}

.pl-index {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  flex-shrink: 0;
}

.playlist-item.active .pl-index {
  border-color: rgba(255, 255, 255, 0.6);
}

.pl-info {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.pl-info b {
  font-size: 14px;
  font-weight: 600;
}

.pl-info small {
  font-size: 12px;
  opacity: 0.75;
}

.pl-demo {
  font-size: 11px;
  color: var(--sub);
  border: 1px dashed var(--border);
  padding: 1px 8px;
  border-radius: 10px;
  flex-shrink: 0;
}

.playlist-item.active .pl-demo {
  color: rgba(255, 255, 255, 0.8);
  border-color: rgba(255, 255, 255, 0.5);
}

.pl-play {
  font-size: 12px;
  opacity: 0.6;
}

/* ---------- 返回链接 ---------- */
.back-wrap {
  margin-top: 34px;
  text-align: center;
  display: flex;
  justify-content: center;
  gap: 22px;
  flex-wrap: wrap;
}

.back-link {
  color: var(--accent);
  text-decoration: none;
  font-size: 14px;
  transition: color var(--transition-fast);
}

.back-link:hover {
  color: var(--text);
}

.back-link.side {
  border-left: 1px solid var(--border);
  padding-left: 22px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 820px) {
  .player-layout {
    grid-template-columns: 1fr;
  }

  .lyrics-box {
    min-height: 240px;
    max-height: 300px;
  }

  .back-link.side {
    border-left: none;
    padding-left: 0;
  }
}

/* 窄屏：返回按钮仅保留圆形图标，避免遮挡居中的标题 */
@media (max-width: 640px) {
  .back-to-playlist {
    padding: 5px 7px;
  }
  .back-label {
    display: none;
  }
}