/* ===== 音乐播放器（左下角悬浮） ===== */

.music-fab {
  position: fixed;
  bottom: 20px;
  left: 20px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 850;
  border: none;
  box-shadow: 0 4px 20px var(--accent-glow);
  font-size: 1.15rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.music-fab:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 26px var(--accent-glow-strong);
}
.music-fab img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}
.music-fab.playing > * {
  animation: musicSpin 4s linear infinite;
}
@keyframes musicSpin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.music-panel {
  position: fixed;
  bottom: 76px;
  left: 20px;
  width: 300px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  z-index: 850;
  display: none;
  flex-direction: column;
  overflow: hidden;
  backdrop-filter: blur(20px);
}
.music-panel.active {
  display: flex;
}

.music-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
}
.music-header-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 6px;
}
.music-close {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  transition: all var(--transition);
}
.music-close:hover {
  color: var(--text-primary);
  background: var(--bg-card-hover);
}

.music-now {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px;
}
.music-cover {
  width: 52px;
  height: 52px;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
  overflow: hidden;
}
.music-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.music-meta {
  flex: 1;
  min-width: 0;
}
.music-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.music-artist {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.music-progress {
  padding: 0 14px;
}
.music-progress input[type="range"] {
  width: 100%;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  border-radius: 2px;
  background: linear-gradient(to right, var(--accent) var(--progress, 0%), var(--bg-card) var(--progress, 0%));
  outline: none;
  cursor: pointer;
}
.music-progress input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: 2px solid #fff;
  box-shadow: 0 1px 4px var(--accent-glow);
}
.music-progress input[type="range"]::-moz-range-thumb {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: 2px solid #fff;
}
.music-time {
  display: flex;
  justify-content: space-between;
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.music-controls {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px 14px;
}
.music-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  transition: all var(--transition);
  flex-shrink: 0;
}
.music-btn:hover {
  background: var(--bg-card-hover);
  color: var(--accent);
  border-color: var(--border-active);
}
.music-btn.play {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff;
  border: none;
  font-size: 1rem;
}
.music-btn.play:hover {
  color: #fff;
  opacity: 0.9;
}
.music-btn.mode {
  margin-left: auto;
  width: auto;
  padding: 0 10px;
  border-radius: 20px;
  font-size: 0.7rem;
}
.music-volume {
  display: flex;
  align-items: center;
  gap: 4px;
}
.music-volume input[type="range"] {
  width: 56px;
  -webkit-appearance: none;
  appearance: none;
  height: 3px;
  border-radius: 2px;
  background: var(--bg-card);
  outline: none;
  cursor: pointer;
}
.music-volume input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
}

.music-list {
  max-height: 200px;
  overflow-y: auto;
  border-top: 1px solid var(--border);
  padding: 6px;
}
.music-list::-webkit-scrollbar {
  width: 5px;
}
.music-list::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}
.music-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 10px;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.15s ease;
}
.music-item:hover {
  background: var(--bg-card);
}
.music-item.playing {
  background: var(--accent-soft);
}
.music-item .mi-title {
  flex: 1;
  min-width: 0;
  font-size: 0.85rem;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.music-item.playing .mi-title {
  color: var(--accent);
  font-weight: 600;
}
.music-item .mi-artist {
  font-size: 0.72rem;
  color: var(--text-muted);
  max-width: 90px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.music-empty {
  padding: 20px;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .music-fab {
    top: 50%;
    bottom: auto;
    left: 12px;
    transform: translateY(-50%);
  }
  .music-panel {
    top: 50%;
    bottom: auto;
    left: 62px;
    transform: translateY(-50%);
    width: calc(100vw - 76px);
    max-width: 300px;
    max-height: 70vh;
  }
}