/* Keep the loading screen clear; show the music control after entering the site. */
#guanju-music-toggle.guanju-music-toggle {
  position: fixed;
  right: max(24px, calc(env(safe-area-inset-right) + 16px));
  bottom: max(24px, calc(env(safe-area-inset-bottom) + 16px));
  z-index: 90;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  box-sizing: border-box;
  min-width: 122px;
  min-height: 46px;
  margin: 0;
  padding: 10px 16px;
  border: 1px solid #c3aa7380;
  border-radius: 999px;
  background: #153b4eed;
  color: #f2e5c5;
  box-shadow: 0 4px 18px #0f2e3d22, inset 0 1px 0 #f8eedc10;
  font: 400 12px/1.5 "PingFang SC", "Microsoft YaHei", sans-serif;
  letter-spacing: .04em;
  white-space: nowrap;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  backdrop-filter: blur(10px);
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transition: background-color .18s ease, border-color .18s ease, box-shadow .18s ease;
}

html.nb-ready:not(.nb-loading) #guanju-music-toggle.guanju-music-toggle,
html:is(.pricing-document, .activities-document) #guanju-music-toggle.guanju-music-toggle {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}

/* Leave room for the chapter count and the scroll prompt in the prologue. */
html.nb-ready:not(.nb-site-visible) #guanju-music-toggle.guanju-music-toggle {
  bottom: max(78px, calc(env(safe-area-inset-bottom) + 68px));
}

#guanju-music-toggle.guanju-music-toggle[hidden] {
  display: none;
}

html.guanju-visit-content #guanju-music-toggle.guanju-music-toggle {
  display: none;
}

#guanju-music-toggle .guanju-music-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
  color: #d6bb7d;
}

#guanju-music-toggle .guanju-music-icon svg {
  display: block;
  width: 18px;
  height: 18px;
}

#guanju-music-toggle .guanju-music-label {
  display: block;
}

#guanju-music-toggle.guanju-music-toggle[data-state="playing"] {
  border-color: #d8bc7caf;
  background: #123448f5;
}

#guanju-music-toggle.guanju-music-toggle[data-state="loading"] {
  cursor: progress;
}

#guanju-music-toggle.guanju-music-toggle:focus-visible {
  outline: 3px solid #f0d59a;
  outline-offset: 4px;
  box-shadow: 0 0 0 6px #153b4ee0;
}

#guanju-music-status.guanju-music-status {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  clip-path: inset(50%);
  border: 0;
  white-space: nowrap;
}

@media (hover: hover) {
  #guanju-music-toggle.guanju-music-toggle:hover {
    background: #1d4b60;
    border-color: #e0c894;
  }
}

@media (max-width: 700px) {
  #guanju-music-toggle.guanju-music-toggle {
    right: max(16px, calc(env(safe-area-inset-right) + 12px));
    bottom: max(16px, calc(env(safe-area-inset-bottom) + 12px));
    min-width: 114px;
    min-height: 44px;
    padding: 10px 13px;
    gap: 8px;
    font-size: 11px;
  }
}

@media (prefers-reduced-motion: reduce) {
  #guanju-music-toggle.guanju-music-toggle {
    transition: none;
  }
}