/* Bottom-center Ask AI launcher: one Liquid Glass control layer above page content. */
.ask-ai-orb {
  --ask-ai-gold: #f0d27c;
  --ask-ai-blue: #7ae3ff;
  position: fixed;
  z-index: 920;
  left: 50%;
  bottom: max(14px, env(safe-area-inset-bottom));
  width: min(310px, calc(100vw - 20px));
  height: 160px;
  transform: translateX(-50%);
  pointer-events: none;
  font-family: var(--font-sans, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif);
}

.ask-ai-orb__backdrop {
  position: fixed;
  z-index: 910;
  inset: 0;
  border: 0;
  background: rgba(2, 7, 18, .46);
  opacity: 0;
  pointer-events: none;
  -webkit-backdrop-filter: blur(0);
  backdrop-filter: blur(0);
  transition:
    opacity .28s ease,
    -webkit-backdrop-filter .34s cubic-bezier(.2, .82, .2, 1),
    backdrop-filter .34s cubic-bezier(.2, .82, .2, 1);
}

.ask-ai-orb__backdrop.is-visible {
  opacity: 1;
  pointer-events: auto;
  -webkit-backdrop-filter: blur(5px);
  backdrop-filter: blur(5px);
}

.ask-ai-orb__fan {
  position: absolute;
  inset: 0;
  list-style: none;
  pointer-events: none;
}

.ask-ai-orb__item {
  --fan-x: 0px;
  --fan-y: 0px;
  --push-x: 0px;
  position: absolute;
  left: 50%;
  bottom: 45px;
  width: 48px;
  display: grid;
  justify-items: center;
  gap: 5px;
  opacity: 0;
  transform: translate(-50%, 0) scale(.56);
  transform-origin: 50% 100%;
  transition:
    transform .38s cubic-bezier(.2, .82, .2, 1),
    opacity .18s ease;
  transition-delay: calc(var(--fan-order) * 22ms);
  pointer-events: none;
}

.ask-ai-orb__item:nth-child(1) { --fan-x: -88px; --fan-y: -38px; --fan-order: 0; }
.ask-ai-orb__item:nth-child(2) { --fan-x: -48px; --fan-y: -70px; --fan-order: 1; }
.ask-ai-orb__item:nth-child(3) { --fan-x: 0px;   --fan-y: -84px; --fan-order: 2; }
.ask-ai-orb__item:nth-child(4) { --fan-x: 48px;  --fan-y: -70px; --fan-order: 3; }
.ask-ai-orb__item:nth-child(5) { --fan-x: 88px;  --fan-y: -38px; --fan-order: 4; }

.ask-ai-orb.is-open .ask-ai-orb__fan { pointer-events: auto; }
.ask-ai-orb.is-open .ask-ai-orb__item {
  opacity: 1;
  transform: translate(calc(-50% + var(--fan-x) + var(--push-x)), var(--fan-y)) scale(1);
  pointer-events: auto;
}

.ask-ai-orb__fan:has(.ask-ai-orb__item:nth-child(1) .ask-ai-orb__link:is(:hover, :focus-visible)) .ask-ai-orb__item:not(:nth-child(1)) { --push-x: 7px; }
.ask-ai-orb__fan:has(.ask-ai-orb__item:nth-child(2) .ask-ai-orb__link:is(:hover, :focus-visible)) .ask-ai-orb__item:nth-child(1),
.ask-ai-orb__fan:has(.ask-ai-orb__item:nth-child(3) .ask-ai-orb__link:is(:hover, :focus-visible)) .ask-ai-orb__item:nth-child(-n + 2),
.ask-ai-orb__fan:has(.ask-ai-orb__item:nth-child(4) .ask-ai-orb__link:is(:hover, :focus-visible)) .ask-ai-orb__item:nth-child(-n + 3),
.ask-ai-orb__fan:has(.ask-ai-orb__item:nth-child(5) .ask-ai-orb__link:is(:hover, :focus-visible)) .ask-ai-orb__item:not(:nth-child(5)) { --push-x: -7px; }
.ask-ai-orb__fan:has(.ask-ai-orb__item:nth-child(2) .ask-ai-orb__link:is(:hover, :focus-visible)) .ask-ai-orb__item:nth-child(n + 3),
.ask-ai-orb__fan:has(.ask-ai-orb__item:nth-child(3) .ask-ai-orb__link:is(:hover, :focus-visible)) .ask-ai-orb__item:nth-child(n + 4),
.ask-ai-orb__fan:has(.ask-ai-orb__item:nth-child(4) .ask-ai-orb__link:is(:hover, :focus-visible)) .ask-ai-orb__item:nth-child(5) { --push-x: 7px; }

.ask-ai-orb__link {
  position: relative;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: #faf6ea;
  text-decoration: none;
  transition: transform .28s cubic-bezier(.2, .82, .2, 1), filter .2s ease;
}

.ask-ai-orb__link:hover,
.ask-ai-orb__link:focus-visible {
  opacity: 1;
  transform: translateY(-5px) scale(1.16);
  filter: brightness(1.12) drop-shadow(0 9px 18px rgba(0, 0, 0, .42));
}

.ask-ai-orb__link:active { transform: scale(.94); transition-duration: 90ms; }
.ask-ai-orb__link:focus-visible,
.ask-ai-orb__toggle:focus-visible {
  outline: 2px solid var(--ask-ai-blue);
  outline-offset: 4px;
}

.ask-ai-orb__brand {
  width: 24px;
  height: 24px;
  display: block;
  object-fit: contain;
  filter: drop-shadow(0 2px 7px rgba(0, 0, 0, .25));
  pointer-events: none;
}

.ask-ai-orb.is-open .ask-ai-orb__brand {
  animation: ask-ai-brand-float 2.4s ease-in-out infinite alternate;
  animation-delay: calc(var(--fan-order) * -310ms);
}

@keyframes ask-ai-brand-float {
  from { transform: translateY(1px); }
  to { transform: translateY(-2px); }
}

.ask-ai-orb__brand--gemini { width: 27px; height: 27px; }
.ask-ai-orb__brand--grok { width: 27px; height: 27px; border-radius: 7px; }
.ask-ai-orb__brand--muse { width: 28px; height: 28px; }

.ask-ai-orb__name {
  padding: 2px 0;
  border: 0;
  background: transparent;
  color: rgba(250, 246, 234, .9);
  text-shadow: 0 2px 7px rgba(0, 0, 0, .72);
  font-size: 10px;
  line-height: 1;
  font-weight: 650;
  white-space: nowrap;
}

.ask-ai-orb__control {
  position: absolute;
  left: 50%;
  bottom: 0;
  display: grid;
  justify-items: center;
  gap: 6px;
  opacity: .5;
  transform: translateX(-50%);
  pointer-events: auto;
  transition: opacity .2s ease;
}

.ask-ai-orb__control:hover,
.ask-ai-orb__control:focus-within,
.ask-ai-orb.is-open .ask-ai-orb__control { opacity: 1; }

.ask-ai-orb__toggle {
  position: relative;
  width: 50px;
  height: 50px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: #f8fbff;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: transform .24s cubic-bezier(.2, .82, .2, 1), filter .24s ease;
}

.ask-ai-orb__toggle:hover {
  transform: translateY(-2px) scale(1.045);
  filter: brightness(1.12);
}

.ask-ai-orb__toggle:active { transform: scale(.91); transition-duration: 90ms; }
.ask-ai-orb__toggle .reicon { width: 18px; height: 18px; }
.ask-ai-orb__thinking {
  position: absolute;
  inset: 8px;
  overflow: hidden;
  border-radius: 50%;
  background:
    radial-gradient(circle at 36% 24%, rgba(255, 255, 255, .95) 0 3%, transparent 18%),
    radial-gradient(circle at 64% 72%, rgba(85, 204, 255, .82), transparent 47%),
    linear-gradient(145deg, #f1d887 4%, #8ee9f8 46%, #8178f2 100%);
  box-shadow:
    inset 0 0 11px rgba(255, 255, 255, .48),
    inset 0 -7px 13px rgba(27, 34, 116, .3),
    0 0 14px rgba(114, 220, 255, .34);
  transform: translateZ(0);
  transition: opacity .16s ease, transform .24s cubic-bezier(.2, .82, .2, 1);
}

.ask-ai-orb__thought {
  position: absolute;
  border-radius: 48% 52% 58% 42%;
  mix-blend-mode: screen;
  will-change: transform;
}

.ask-ai-orb__thought--one {
  width: 25px;
  height: 17px;
  top: 2px;
  left: -5px;
  background: rgba(255, 236, 167, .72);
  filter: blur(3px);
  animation: ask-ai-think-one 2.6s cubic-bezier(.45, .05, .55, .95) infinite alternate;
}

.ask-ai-orb__thought--two {
  width: 20px;
  height: 25px;
  right: -3px;
  bottom: -5px;
  background: rgba(96, 126, 255, .72);
  filter: blur(4px);
  animation: ask-ai-think-two 3.4s cubic-bezier(.45, .05, .55, .95) infinite alternate;
}

.ask-ai-orb__thought--three {
  width: 10px;
  height: 20px;
  left: 12px;
  top: 9px;
  background: rgba(255, 255, 255, .58);
  filter: blur(3px);
  animation: ask-ai-think-three 2.1s ease-in-out infinite alternate;
}

@keyframes ask-ai-think-one {
  from { transform: translate(-1px, 1px) rotate(4deg) scale(.92); }
  to { transform: translate(11px, 8px) rotate(126deg) scale(1.14); }
}

@keyframes ask-ai-think-two {
  from { transform: translate(0, 0) rotate(-18deg) scale(1.05); }
  to { transform: translate(-11px, -8px) rotate(105deg) scale(.83); }
}

@keyframes ask-ai-think-three {
  from { transform: rotate(0deg) scale(.72); opacity: .45; }
  to { transform: rotate(152deg) scale(1.2); opacity: .92; }
}

.ask-ai-orb__icon-close { display: none; }
.ask-ai-orb.is-open .ask-ai-orb__thinking { opacity: 0; transform: scale(.65); }
.ask-ai-orb.is-open .ask-ai-orb__icon-close {
  z-index: 2;
  display: inline-flex;
}

.ask-ai-orb__caption {
  padding: 4px 9px;
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: 999px;
  background: rgba(6, 13, 30, .7);
  -webkit-backdrop-filter: blur(15px) saturate(140%);
  backdrop-filter: blur(15px) saturate(140%);
  box-shadow: 0 6px 20px rgba(0, 0, 0, .28);
  color: rgba(250, 246, 234, .9);
  font-size: 10px;
  line-height: 1.2;
  font-weight: 620;
  letter-spacing: .005em;
  text-align: center;
  white-space: nowrap;
}

[data-lang="en"] .ask-ai-orb .i18n-zh { display: none; }
[data-lang="zh"] .ask-ai-orb .i18n-en { display: none; }

@media (max-width: 520px) {
  .ask-ai-orb { width: calc(100vw - 12px); height: 156px; }
  .ask-ai-orb__item:nth-child(1) { --fan-x: -84px; --fan-y: -36px; }
  .ask-ai-orb__item:nth-child(2) { --fan-x: -46px; --fan-y: -67px; }
  .ask-ai-orb__item:nth-child(3) { --fan-x: 0px;   --fan-y: -80px; }
  .ask-ai-orb__item:nth-child(4) { --fan-x: 46px;  --fan-y: -67px; }
  .ask-ai-orb__item:nth-child(5) { --fan-x: 84px;  --fan-y: -36px; }
  .ask-ai-orb__caption { max-width: calc(100vw - 24px); white-space: normal; }
}

@media (prefers-reduced-motion: reduce) {
  .ask-ai-orb__backdrop { transition: opacity .16s ease; }
  .ask-ai-orb__control { transition: none; }
  .ask-ai-orb__item,
  .ask-ai-orb__link,
  .ask-ai-orb__toggle { transition: opacity .16s ease, color .16s ease, background .16s ease; }
  .ask-ai-orb.is-open .ask-ai-orb__item { transform: translate(calc(-50% + var(--fan-x)), var(--fan-y)); }
  .ask-ai-orb__thought,
  .ask-ai-orb.is-open .ask-ai-orb__brand { animation: none; }
}

@media (prefers-reduced-transparency: reduce), (prefers-contrast: more) {
  .ask-ai-orb__backdrop,
  .ask-ai-orb__backdrop.is-visible {
    background: rgba(2, 7, 18, .76);
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }
  .ask-ai-orb__caption {
    background: #0c1530;
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }
}

@media print { .ask-ai-orb, .ask-ai-orb__backdrop { display: none !important; } }