.music-player {
  position: fixed;
  right: 28px;
  bottom: 28px;
  z-index: 39;
  font-family: inherit;
  transition: bottom 180ms ease;
}

html.contact-widget-visible .music-player {
  bottom: 92px;
}

.music-player-audio {
  display: none;
}

.music-player-status {
  width: 1px;
  height: 1px;
  padding: 0;
  position: absolute;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.music-player-trigger {
  width: 52px;
  height: 52px;
  padding: 0;
  position: relative;
  display: grid;
  place-items: center;
  appearance: none;
  border: 1px solid #e1e4e8;
  border-radius: 8px;
  color: #25282d;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 12px 30px rgba(16, 17, 20, 0.14);
  cursor: pointer;
  transition: color 180ms ease, background-color 180ms ease, border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.music-player-trigger::before {
  padding: 8px 11px;
  position: absolute;
  top: 50%;
  right: calc(100% + 10px);
  border: 1px solid #e4e7eb;
  border-radius: 6px;
  color: #34373d;
  background: #fff;
  box-shadow: 0 9px 24px rgba(16, 17, 20, 0.12);
  content: "播放音乐";
  font-size: 12px;
  font-weight: 650;
  line-height: 1;
  opacity: 0;
  pointer-events: none;
  transform: translate(7px, -50%);
  transition: opacity 160ms ease, transform 160ms ease;
  white-space: nowrap;
}

.music-player.is-playing .music-player-trigger {
  border-color: #101114;
  color: #fff;
  background: #101114;
  box-shadow: 0 14px 34px rgba(16, 17, 20, 0.22);
}

.music-player.is-playing .music-player-trigger::before {
  content: "暂停音乐";
}

.music-player-trigger:hover,
.music-player-trigger:focus-visible {
  border-color: #101114;
  color: #fff;
  background: #24262b;
  box-shadow: 0 16px 34px rgba(16, 17, 20, 0.22);
  outline: none;
  transform: translateY(-2px);
}

.music-player-trigger:active {
  transform: translateY(0);
}

.music-player-trigger:disabled {
  border-color: #e5e7ea;
  color: #a3a7ae;
  background: #f5f6f7;
  box-shadow: none;
  cursor: not-allowed;
  transform: none;
}

.music-player-icon {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.music-player-icon-pause,
.music-player.is-playing .music-player-icon-note {
  display: none;
}

.music-player.is-playing .music-player-icon-pause {
  display: block;
}

.music-player-bars {
  width: 15px;
  height: 11px;
  position: absolute;
  right: 4px;
  bottom: 4px;
  display: none;
  align-items: flex-end;
  justify-content: center;
  gap: 2px;
}

.music-player.is-playing .music-player-bars {
  display: flex;
}

.music-player-bars i {
  width: 2px;
  height: 5px;
  border-radius: 1px;
  background: currentColor;
  animation: musicLevel 760ms ease-in-out infinite alternate;
}

.music-player-bars i:nth-child(2) {
  height: 9px;
  animation-delay: 160ms;
}

.music-player-bars i:nth-child(3) {
  height: 7px;
  animation-delay: 320ms;
}

@media (hover: hover) and (pointer: fine) {
  .music-player-trigger:hover::before,
  .music-player-trigger:focus-visible::before {
    opacity: 1;
    transform: translate(0, -50%);
  }
}

@media (max-width: 520px) {
  .music-player {
    right: 16px;
    bottom: 16px;
  }

  html.contact-widget-visible .music-player {
    bottom: 76px;
  }

  .music-player-trigger {
    width: 48px;
    height: 48px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .music-player,
  .music-player-trigger,
  .music-player-trigger::before {
    transition: none;
  }

  .music-player-bars i {
    animation: none;
  }
}

@keyframes musicLevel {
  from { transform: scaleY(0.55); }
  to { transform: scaleY(1); }
}