/* AI Search Simulation — 纵深堆叠 + 工作流级切换动效（仅 geo-sim 域） */
.geo-sim {
  --geo-card-min-h: 200px;
  --geo-stack-tail: 88px;
  --geo-mx-dur: 1.15s;
  --geo-mx-dur-long: 1.22s;
  --geo-mx-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --geo-mx-ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --geo-glow: rgba(99, 102, 241, 0.22);
  --geo-glow-soft: rgba(129, 140, 248, 0.12);
}

.geo-sim--bare {
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  backdrop-filter: none !important;
}

.geo-sim__stage {
  position: relative;
  margin-top: 0;
  padding-top: 0;
}

.geo-sim__stack-wrap {
  position: relative;
  width: 100%;
  min-height: calc(var(--geo-card-min-h) + var(--geo-stack-tail));
  padding-bottom: 0.25rem;
}

/* 入场：整体 cinematic 浮现 */
.geo-sim__stack {
  position: relative;
  width: 100%;
  min-height: calc(var(--geo-card-min-h) + var(--geo-stack-tail));
  transform-style: preserve-3d;
  opacity: 0;
  transform: translateY(40px);
  filter: blur(14px);
  transition:
    opacity 1.05s var(--geo-mx-ease-out),
    transform 1.05s var(--geo-mx-ease-out),
    filter 1.15s var(--geo-mx-ease-out);
}

.geo-sim.geo-sim--in-view .geo-sim__stack {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

.geo-sim.geo-sim--in-view .geo-sim__slide {
  transition:
    transform var(--geo-mx-dur-long) var(--geo-mx-ease),
    opacity var(--geo-mx-dur) var(--geo-mx-ease-out),
    filter var(--geo-mx-dur) var(--geo-mx-ease-out),
    box-shadow 0.65s var(--geo-mx-ease-out);
}

.geo-sim__slide {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  transform-origin: 50% 0;
  will-change: transform, opacity, filter;
  transition:
    transform 0.72s var(--geo-mx-ease),
    opacity 0.55s ease,
    filter 0.45s ease,
    box-shadow 0.45s ease;
}

/* 仅首次入场：后方卡片略延迟跟上 */
.geo-sim.geo-sim--first-reveal.geo-sim--in-view .geo-sim__slide[data-depth='1'] {
  transition-delay: 0.08s, 0.08s, 0.08s, 0s;
}
.geo-sim.geo-sim--first-reveal.geo-sim--in-view .geo-sim__slide[data-depth='2'] {
  transition-delay: 0.14s, 0.14s, 0.14s, 0s;
}
.geo-sim.geo-sim--first-reveal.geo-sim--in-view .geo-sim__slide[data-depth='3'] {
  transition-delay: 0.2s, 0.2s, 0.2s, 0s;
}
.geo-sim.geo-sim--first-reveal.geo-sim--in-view .geo-sim__slide[data-depth='4'] {
  transition-delay: 0.26s, 0.26s, 0.26s, 0s;
}

.geo-sim__slide[data-depth='0'] {
  transform: translateY(0) scale(1);
  z-index: 50;
  opacity: 1;
  filter: saturate(1.02) contrast(1.02);
  pointer-events: auto;
}

.geo-sim__slide[data-depth='1'] {
  transform: translateY(24px) scale(0.95);
  z-index: 49;
  opacity: 0.72;
  filter: saturate(0.88) contrast(0.96) blur(0.45px);
  pointer-events: none;
}

.geo-sim__slide[data-depth='2'] {
  transform: translateY(48px) scale(0.9);
  z-index: 48;
  opacity: 0.45;
  filter: saturate(0.78) contrast(0.93) blur(1px);
  pointer-events: none;
}

.geo-sim__slide[data-depth='3'] {
  transform: translateY(60px) scale(0.88);
  z-index: 47;
  opacity: 0.28;
  filter: saturate(0.72) contrast(0.9) blur(1.5px);
  pointer-events: none;
}

.geo-sim__slide[data-depth='4'] {
  transform: translateY(72px) scale(0.85);
  z-index: 46;
  opacity: 0.2;
  filter: saturate(0.66) contrast(0.88) blur(2px);
  pointer-events: none;
}

/* 退场：主卡上浮、缩小、沉入雾中 */
.geo-sim__slide.is-geo-exit {
  transform: translateY(-52px) scale(0.82) !important;
  opacity: 0 !important;
  filter: blur(16px) saturate(0.75) contrast(0.92) !important;
  z-index: 60 !important;
  pointer-events: none;
  transition:
    transform var(--geo-mx-dur-long) var(--geo-mx-ease),
    opacity calc(var(--geo-mx-dur-long) * 0.92) var(--geo-mx-ease-out),
    filter var(--geo-mx-dur-long) var(--geo-mx-ease-out) !important;
}

.geo-sim.is-geo-switching .geo-sim__slide:not(.is-geo-exit)[data-depth='1'] {
  transition-duration: 1.18s, 1.05s, 1.05s, 0.55s;
}

.is-flipping .geo-sim__slide[data-depth='0']:not(.is-geo-exit) {
  filter: saturate(1.04) contrast(1.03) brightness(1.01);
}

.geo-sim__slide-shell {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  min-height: var(--geo-card-min-h);
  box-sizing: border-box;
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 1rem;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.8) inset,
    0 10px 28px rgba(15, 23, 42, 0.1),
    0 4px 10px rgba(15, 23, 42, 0.06);
  padding: 0.75rem 0.85rem 0.85rem;
  transition: box-shadow 0.65s var(--geo-mx-ease-out), border-color 0.5s ease, background-color 0.5s ease;
}

/* 主卡：辉光 + 略亮底 + 边缘流光 */
.geo-sim.geo-sim--in-view .geo-sim__slide[data-depth='0'] .geo-sim__slide-shell {
  background: linear-gradient(180deg, #ffffff 0%, #fafbff 100%);
  border-color: rgba(199, 210, 254, 0.65);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.95) inset,
    0 0 48px -12px var(--geo-glow),
    0 0 80px -24px var(--geo-glow-soft),
    0 16px 40px rgba(15, 23, 42, 0.08);
}

.geo-sim.geo-sim--in-view .geo-sim__slide[data-depth='0'] .geo-sim__slide-shell::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(
    115deg,
    transparent 0%,
    transparent 38%,
    rgba(255, 255, 255, 0.06) 48%,
    rgba(129, 140, 248, 0.09) 50%,
    rgba(255, 255, 255, 0.05) 52%,
    transparent 62%,
    transparent 100%
  );
  background-size: 220% 100%;
  animation: geo-edge-sweep 9s linear infinite;
  pointer-events: none;
  z-index: 0;
  opacity: 0.85;
}

@keyframes geo-edge-sweep {
  0% {
    background-position: 120% 0;
  }
  100% {
    background-position: -120% 0;
  }
}

/* 主卡呼吸：仅作用于 shell，避免与 slide 的 transform 冲突 */
@keyframes geo-shell-breathe {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-2.5px);
  }
}

.geo-sim.geo-sim--in-view:not(.is-geo-switching) .geo-sim__slide[data-depth='0'] .geo-sim__slide-shell {
  animation: geo-shell-breathe 6.8s ease-in-out infinite;
}

.geo-sim.is-geo-switching .geo-sim__slide[data-depth='0']:not(.is-geo-exit) .geo-sim__slide-shell,
.geo-sim__slide.is-geo-exit .geo-sim__slide-shell {
  animation: none;
}

/* 扫描线（切换瞬间） */
.geo-sim__slide-shell::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(
    105deg,
    transparent 36%,
    rgba(255, 255, 255, 0.14) 48%,
    rgba(224, 231, 255, 0.35) 50%,
    rgba(255, 255, 255, 0.12) 52%,
    transparent 64%
  );
  opacity: 0;
  pointer-events: none;
  transform: translateX(-8%);
}

.geo-sim__slide-shell.is-geo-scan::after {
  animation: geo-scan-sweep 0.95s var(--geo-mx-ease-out) forwards;
}

@keyframes geo-scan-sweep {
  0% {
    opacity: 0;
    transform: translateX(-12%);
  }
  18% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translateX(12%);
  }
}

.geo-sim__slide-chat {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  width: 100%;
}

.geo-sim__turn {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  width: 100%;
}

.geo-sim__turn--model {
  justify-content: flex-start;
}

.geo-sim__turn--user {
  justify-content: flex-end;
}

.geo-sim__turn--model .geo-sim__bubble--model {
  order: 2;
}

.geo-sim__turn--model .geo-sim__platform {
  order: 1;
}

.geo-sim__turn--user .geo-sim__bubble--user {
  order: 1;
}

.geo-sim__turn--user .geo-sim__avatar {
  order: 2;
}

.geo-sim__bubble {
  padding: 0.75rem 0.9rem;
  font-size: 0.8125rem;
  line-height: 1.55;
  max-width: min(100%, 22rem);
  word-break: break-word;
}

.geo-sim__bubble p {
  margin: 0;
}

/* 模型气泡：不滚动、不显示滚动条 */
.geo-sim__bubble--model {
  background: #2563eb;
  color: #fff;
  border-radius: 1rem;
  border-top-left-radius: 0.25rem;
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.2);
  overflow: hidden;
  max-height: none;
}

.geo-sim__bubble--user {
  background: #f1f5f9;
  color: #334155;
  border-radius: 1rem;
  border-top-right-radius: 0.25rem;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.06);
  overflow: hidden;
}

.geo-sim__avatar {
  flex-shrink: 0;
  width: 2rem;
  height: 2rem;
  border-radius: 9999px;
  overflow: hidden;
  background: #e2e8f0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.geo-sim__avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.geo-sim__platform {
  flex-shrink: 0;
  width: 2rem;
  height: 2rem;
  border-radius: 9999px;
  background: #fff;
  border: 1px solid #e2e8f0;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.06);
}

.geo-sim__platform img {
  width: 1.125rem;
  height: 1.125rem;
  object-fit: contain;
}

/* 底栏：偏系统 dock，弱化「分页 tab」感 */
.geo-sim__tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.35rem;
  margin-top: 1rem;
  padding: 0.35rem 0.5rem;
  background: rgba(248, 250, 252, 0.72);
  border-radius: 9999px;
  border: 1px solid rgba(226, 232, 240, 0.85);
  width: fit-content;
  max-width: 100%;
  margin-left: auto;
  margin-right: auto;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.6) inset;
}

.geo-sim__tab {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.125rem;
  height: 2.125rem;
  border-radius: 9999px;
  border: 1px solid transparent;
  background: transparent;
  cursor: pointer;
  padding: 0;
  transition:
    background-color 0.35s var(--geo-mx-ease),
    opacity 0.35s ease,
    box-shadow 0.4s ease,
    transform 0.35s var(--geo-mx-ease);
  opacity: 0.42;
}

.geo-sim__tab:hover {
  opacity: 0.88;
  background: rgba(255, 255, 255, 0.55);
  transform: translateY(-1px);
}

.geo-sim__tab img {
  width: 1.05rem;
  height: 1.05rem;
  object-fit: contain;
}

.geo-sim__tab[aria-selected='true'] {
  opacity: 1;
  background: rgba(255, 255, 255, 0.92);
  border-color: rgba(199, 210, 254, 0.55);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.8) inset,
    0 0 20px -4px rgba(99, 102, 241, 0.2);
}

@media (prefers-reduced-motion: reduce) {
  .geo-sim__stack {
    opacity: 1;
    transform: none;
    filter: none;
    transition: none;
  }

  .geo-sim__slide {
    transition-duration: 0.01ms;
  }

  .geo-sim__slide.is-geo-exit {
    transform: none !important;
    opacity: 1 !important;
    filter: none !important;
  }

  .geo-sim.geo-sim--in-view .geo-sim__slide[data-depth='0'] .geo-sim__slide-shell,
  .geo-sim.geo-sim--in-view .geo-sim__slide[data-depth='0'] .geo-sim__slide-shell::before {
    animation: none !important;
  }

  .geo-sim__slide-shell::after {
    display: none;
  }

  .geo-sim__tab {
    transition: none;
  }
}