/* 图匠 AI · 沉浸画廊（移植自 tujiang-ai-ui-preview v36 immersive-gallery）
   数据桥接：window.App.immersiveGalleryItems()，动作走 window.App。
   样式自包含：所需 CSS 变量在本文件内定义，不依赖 app.css。 */

.immersive-gallery,
.immersive-entry-card {
  --accent-rgb: 46, 90, 74;
  --accent-contrast: #fff;
  --ease: cubic-bezier(.2, .8, .2, 1);
  --title-font: "Source Han Sans SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  --body-font: "Source Han Sans SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
}

/* ---------- 工作台右上角入口 ---------- */

.immersive-entry-card {
  position: relative;
  display: grid;
  grid-template-columns: 46px minmax(62px, 1fr) 20px;
  align-items: center;
  gap: 8px;
  width: 164px;
  min-height: 38px;
  height: 38px;
  flex: 0 0 auto;
  padding: 3px 6px 3px 4px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  color: #f6f4ef;
  background: #171819;
  box-shadow: 0 5px 14px rgba(25, 22, 18, 0.1);
  cursor: pointer;
  text-align: left;
  transition: transform 220ms var(--ease), box-shadow 220ms var(--ease), border-color 220ms var(--ease);
}

.immersive-entry-card:hover,
.immersive-entry-card:focus-visible {
  border-color: rgba(var(--accent-rgb), 0.65);
  box-shadow: 0 8px 20px rgba(18, 16, 14, 0.18);
  transform: translateY(-1px);
}

.immersive-entry-card:focus-visible {
  outline: 2px solid rgb(var(--accent-rgb));
  outline-offset: 3px;
}

.immersive-entry-stack {
  position: relative;
  display: block;
  width: 46px;
  height: 30px;
  perspective: 220px;
}

.immersive-entry-stack img {
  position: absolute;
  top: 4px;
  left: 7px;
  width: 32px;
  height: 22px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 3px;
  object-fit: cover;
  box-shadow: 0 4px 9px rgba(0, 0, 0, 0.34);
  transform-origin: center;
  transition: transform 260ms var(--ease), filter 260ms var(--ease);
}

.immersive-entry-stack img:nth-child(1) {
  filter: brightness(0.55);
  transform: translate3d(-6px, -2px, -12px) rotate(-7deg);
}

.immersive-entry-stack img:nth-child(2) {
  z-index: 2;
  transform: translate3d(0, 0, 8px);
}

.immersive-entry-stack img:nth-child(3) {
  filter: brightness(0.68);
  transform: translate3d(7px, 2px, -8px) rotate(7deg);
}

.immersive-entry-card:hover .immersive-entry-stack img:nth-child(1),
.immersive-entry-card:focus-visible .immersive-entry-stack img:nth-child(1) {
  transform: translate3d(-9px, -3px, -4px) rotate(-10deg);
}

.immersive-entry-card:hover .immersive-entry-stack img:nth-child(2),
.immersive-entry-card:focus-visible .immersive-entry-stack img:nth-child(2) {
  transform: translate3d(0, -1px, 14px) scale(1.04);
}

.immersive-entry-card:hover .immersive-entry-stack img:nth-child(3),
.immersive-entry-card:focus-visible .immersive-entry-stack img:nth-child(3) {
  transform: translate3d(10px, 2px, 0) rotate(10deg);
}

.immersive-entry-copy {
  display: grid;
  min-width: 0;
  gap: 1px;
}

.immersive-entry-copy small {
  color: rgb(var(--accent-rgb));
  font-size: 7px;
  font-weight: 800;
  letter-spacing: 0.13em;
}

.immersive-entry-copy strong {
  color: #f6f4ef;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: -0.015em;
}

.immersive-entry-arrow {
  display: grid;
  width: 20px;
  height: 20px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 50%;
  color: #fff;
  font-size: 11px;
  transition: color 180ms var(--ease), background 180ms var(--ease), transform 180ms var(--ease);
}

.immersive-entry-card:hover .immersive-entry-arrow,
.immersive-entry-card:focus-visible .immersive-entry-arrow {
  color: var(--accent-contrast);
  background: rgb(var(--accent-rgb));
  border-color: rgb(var(--accent-rgb));
  transform: translate(2px, -2px);
}

/* ---------- 全屏画廊 ---------- */

html.immersive-active,
html.immersive-active body {
  overflow: hidden;
  overscroll-behavior: none;
  background: #030303;
}

.immersive-gallery {
  position: fixed;
  z-index: 10000;
  inset: 0;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  color: #f4f2ed;
  background: #030303;
  border: 0;
  opacity: 0;
  visibility: hidden;
  isolation: isolate;
  user-select: none;
  overscroll-behavior: none;
  transition:
    opacity 520ms cubic-bezier(.22, .72, .18, 1),
    visibility 0s linear 520ms;
}

.immersive-gallery[hidden] {
  display: none !important;
}

.immersive-gallery.is-open {
  opacity: 1;
  visibility: visible;
  transition:
    opacity 520ms cubic-bezier(.22, .72, .18, 1),
    visibility 0s linear 0s;
}

.immersive-gallery::before {
  content: "";
  position: absolute;
  z-index: 4;
  inset: 0;
  pointer-events: none;
  box-shadow: inset 0 0 190px 32px rgba(0, 0, 0, 0.86);
}

.immersive-stage {
  position: absolute;
  z-index: 1;
  inset: 0;
  overflow: hidden;
  perspective: 1040px;
  perspective-origin: 50% 48%;
  cursor: grab;
  touch-action: none;
}

.immersive-stage:active {
  cursor: grabbing;
}

.immersive-world {
  position: absolute;
  inset: 0;
  transform-style: preserve-3d;
  will-change: transform;
}

.depth-card {
  --depth-card-scale: 1;
  position: absolute;
  left: 50%;
  top: 50%;
  display: block;
  width: var(--depth-card-width, 300px);
  max-width: 46vw;
  min-width: 132px;
  padding: 0;
  overflow: hidden;
  color: #fff;
  background: #080808;
  border: 0;
  border-radius: 5px;
  box-shadow: 0 20px 70px rgba(0, 0, 0, 0.62);
  cursor: pointer;
  transform-style: preserve-3d;
  transform-origin: center;
  will-change: transform, opacity, filter;
  backface-visibility: hidden;
  transition:
    box-shadow 240ms ease,
    outline-color 240ms ease;
}

.depth-card:hover,
.depth-card:focus-visible {
  --depth-card-scale: 1.035;
  box-shadow: 0 28px 86px rgba(0, 0, 0, 0.74);
}

.depth-card.is-selected {
  --depth-card-scale: 1.055;
  outline: 2px solid rgba(var(--accent-rgb), 0.94);
  outline-offset: 5px;
  box-shadow:
    0 0 0 10px rgba(var(--accent-rgb), 0.1),
    0 34px 100px rgba(0, 0, 0, 0.82);
}

.depth-card.is-layer-swapping {
  box-shadow:
    0 28px 72px rgba(0, 0, 0, 0.58),
    0 0 0 1px rgba(var(--accent-rgb), 0.55),
    0 0 28px rgba(var(--accent-rgb), 0.16);
}

.depth-card.is-layer-swapping::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 5;
  border-radius: inherit;
  background: linear-gradient(105deg, transparent 28%, rgba(255, 255, 255, 0.18) 48%, transparent 66%);
  pointer-events: none;
  transform: translateX(-115%);
  animation: immersive-layer-sheen 327ms cubic-bezier(0.42, 0, 0.58, 1) both;
}

.depth-card img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 64vh;
  aspect-ratio: var(--depth-card-ratio, 4 / 3);
  object-fit: cover;
  pointer-events: none;
}

.depth-card-meta {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  padding: 34px 13px 11px;
  color: #fff;
  background: rgba(3, 3, 3, 0.72);
  opacity: 0;
  transform: translateY(7px);
  transition:
    opacity 200ms ease,
    transform 240ms ease;
  pointer-events: none;
}

.depth-card:hover .depth-card-meta,
.depth-card:focus-visible .depth-card-meta,
.depth-card.is-selected .depth-card-meta {
  opacity: 1;
  transform: translateY(0);
}

.depth-card-meta strong {
  overflow: hidden;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.35;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.depth-card-meta span {
  flex: 0 0 auto;
  color: rgba(255, 255, 255, 0.6);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.immersive-hud {
  position: absolute;
  z-index: 20;
  inset: 24px 28px auto;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  pointer-events: none;
}

.immersive-heading {
  display: grid;
  gap: 2px;
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.8);
}

.immersive-kicker {
  color: rgba(255, 255, 255, 0.47);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.2em;
}

.immersive-heading strong {
  font-family: var(--title-font);
  font-size: clamp(19px, 2vw, 28px);
  letter-spacing: -0.04em;
}

.immersive-hud-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  pointer-events: auto;
}

.immersive-counter {
  min-width: 64px;
  color: rgba(255, 255, 255, 0.58);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.12em;
  text-align: right;
}

.immersive-exit {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 39px;
  padding: 0 13px;
  color: rgba(255, 255, 255, 0.9);
  background: rgba(16, 16, 16, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  cursor: pointer;
  backdrop-filter: blur(16px);
  transition:
    background-color 180ms ease,
    border-color 180ms ease;
}

.immersive-exit:hover {
  background: rgba(31, 31, 31, 0.94);
  border-color: rgba(255, 255, 255, 0.3);
}

.immersive-exit span {
  font-size: 11px;
}

.immersive-exit kbd {
  padding: 2px 5px;
  color: rgba(255, 255, 255, 0.48);
  background: #0b0b0b;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 4px;
  font: 9px/1.2 var(--body-font);
}

.immersive-intro {
  position: absolute;
  z-index: 20;
  left: 50%;
  bottom: 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 540px;
  min-height: 70px;
  padding: 10px 14px 10px 12px;
  color: rgba(255, 255, 255, 0.78);
  background: rgba(10, 10, 10, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  box-shadow:
    0 18px 54px rgba(0, 0, 0, 0.52),
    0 0 0 4px rgba(var(--accent-rgb), 0.08);
  transform: translateX(-50%);
  transition:
    opacity 360ms ease,
    transform 360ms ease;
  backdrop-filter: blur(18px);
  pointer-events: none;
}

.immersive-intro.is-dismissed {
  opacity: 0.58;
  transform: translate(-50%, 5px) scale(0.97);
}

.immersive-control-primary,
.immersive-keyboard-guide {
  display: flex;
  align-items: center;
}

.immersive-control-primary {
  gap: 11px;
}

.immersive-control-copy,
.immersive-keyboard-copy {
  display: grid;
  gap: 3px;
  white-space: nowrap;
}

.immersive-control-copy strong,
.immersive-keyboard-copy strong {
  color: #fff;
  font-size: 13px;
  font-weight: 750;
  letter-spacing: 0.01em;
}

.immersive-control-copy small,
.immersive-keyboard-copy small {
  color: rgba(255, 255, 255, 0.48);
  font-size: 9px;
  letter-spacing: 0.04em;
}

.touch-control-copy {
  display: none;
}

.immersive-control-divider {
  width: 1px;
  height: 42px;
  background: rgba(255, 255, 255, 0.14);
}

.immersive-keyboard-guide {
  gap: 11px;
}

.immersive-keyboard-copy {
  min-width: 110px;
}

.immersive-wheel {
  position: relative;
  flex: 0 0 auto;
  width: 28px;
  height: 44px;
  border: 2px solid rgb(var(--accent-rgb));
  border-radius: 16px;
  box-shadow: 0 0 0 4px rgba(var(--accent-rgb), 0.13);
}

.immersive-wheel i {
  position: absolute;
  top: 7px;
  left: 50%;
  width: 3px;
  height: 8px;
  background: #fff;
  border-radius: 3px;
  transform: translateX(-50%);
  animation: immersive-wheel-cue 1.55s ease-in-out infinite;
}

.immersive-key-cluster {
  display: grid;
  gap: 3px;
}

.immersive-key-row {
  display: flex;
  justify-content: center;
  gap: 3px;
}

.immersive-key-cluster kbd {
  display: inline-grid;
  place-items: center;
  width: 23px;
  height: 20px;
  color: rgba(255, 255, 255, 0.68);
  background: #1c1c1c;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-bottom-color: rgba(255, 255, 255, 0.34);
  border-radius: 4px;
  box-shadow: 0 2px 0 #050505;
  font: 700 9px/1 var(--body-font);
  transition:
    color 100ms ease,
    background-color 100ms ease,
    border-color 100ms ease,
    transform 100ms ease;
}

.immersive-key-cluster kbd.is-active {
  color: var(--accent-contrast);
  background: rgb(var(--accent-rgb));
  border-color: rgb(var(--accent-rgb));
  box-shadow: 0 1px 0 #050505;
  transform: translateY(1px);
}

@keyframes immersive-wheel-cue {
  0%,
  100% {
    opacity: 0.2;
    transform: translate(-50%, 0);
  }
  45% {
    opacity: 1;
  }
  70% {
    opacity: 0.15;
    transform: translate(-50%, 7px);
  }
}

@keyframes immersive-layer-sheen {
  to { transform: translateX(115%); }
}

.immersive-swap-cue {
  position: fixed;
  left: 50%;
  bottom: 104px;
  z-index: 2147483601;
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 126px;
  padding: 9px 12px 9px 10px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 12px;
  color: #f5f2ec;
  background: rgba(18, 19, 20, 0.92);
  box-shadow: 0 16px 42px rgba(0, 0, 0, 0.42);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 10px) scale(0.94);
}

.immersive-swap-cue.is-visible {
  animation: immersive-swap-cue 520ms cubic-bezier(0.42, 0, 0.58, 1) both;
}

.immersive-swap-cue-arrow {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border: 1px solid rgba(var(--accent-rgb), 0.48);
  border-radius: 50%;
  color: rgb(var(--accent-rgb));
  background: rgba(var(--accent-rgb), 0.1);
  font-size: 17px;
  font-weight: 700;
}

.immersive-swap-cue[data-direction="right"] .immersive-swap-cue-arrow::before { content: "→"; }
.immersive-swap-cue[data-direction="left"] .immersive-swap-cue-arrow::before { content: "←"; }

.immersive-swap-cue-copy {
  display: grid;
  gap: 1px;
  text-align: left;
}

.immersive-swap-cue-copy strong {
  font-size: 11px;
  font-weight: 720;
}

.immersive-swap-cue-copy small {
  color: rgba(255, 255, 255, 0.52);
  font-size: 9px;
}

@keyframes immersive-swap-cue {
  0% { opacity: 0; transform: translate(-50%, 12px) scale(0.92); }
  18%, 70% { opacity: 1; transform: translate(-50%, 0) scale(1); }
  100% { opacity: 0; transform: translate(-50%, -7px) scale(0.98); }
}

.immersive-focus {
  position: absolute;
  z-index: 21;
  left: 28px;
  bottom: 27px;
  display: grid;
  gap: 6px;
  width: min(380px, calc(100vw - 56px));
  padding: 14px 15px 15px;
  color: #fff;
  background: rgba(12, 12, 12, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 10px;
  box-shadow: 0 18px 52px rgba(0, 0, 0, 0.42);
  backdrop-filter: blur(18px);
}

.immersive-focus[hidden] {
  display: none !important;
}

.immersive-focus-type {
  color: rgba(var(--accent-rgb), 1);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.immersive-focus h2 {
  margin: 0;
  overflow: hidden;
  font-size: 18px;
  line-height: 1.35;
  letter-spacing: -0.025em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.immersive-focus-actions {
  display: flex;
  gap: 8px;
  margin-top: 6px;
}

.immersive-focus-actions button {
  min-height: 34px;
  padding: 0 12px;
  color: rgba(255, 255, 255, 0.82);
  background: #202020;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 7px;
  font-size: 10px;
  font-weight: 700;
  cursor: pointer;
}

.immersive-focus-actions .immersive-primary {
  color: var(--accent-contrast);
  background: rgb(var(--accent-rgb));
  border-color: rgb(var(--accent-rgb));
}

.immersive-progress {
  position: absolute;
  z-index: 22;
  right: 28px;
  bottom: 29px;
  width: 116px;
  height: 2px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.16);
  pointer-events: none;
}

.immersive-progress i {
  display: block;
  width: 100%;
  height: 100%;
  background: rgb(var(--accent-rgb));
  transform: scaleX(0);
  transform-origin: left;
  will-change: transform;
}

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

.immersive-empty {
  position: absolute;
  z-index: 19;
  left: 50%;
  top: 50%;
  display: grid;
  justify-items: center;
  gap: 8px;
  width: min(420px, calc(100vw - 56px));
  color: rgba(255, 255, 255, 0.78);
  text-align: center;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.immersive-empty[hidden] {
  display: none !important;
}

.immersive-empty strong {
  color: #fff;
  font-size: 16px;
}

.immersive-empty small {
  font-size: 12px;
  line-height: 1.7;
}

@media (max-width: 820px) {
  .immersive-hud {
    inset: 18px 16px auto;
  }

  .immersive-heading strong {
    font-size: 20px;
  }

  .immersive-kicker,
  .immersive-counter,
  .immersive-exit kbd {
    display: none;
  }

  .immersive-exit {
    min-height: 38px;
    padding: 0 12px;
  }

  .immersive-focus {
    right: 16px;
    bottom: 94px;
    left: 16px;
    width: auto;
  }

  .immersive-intro {
    bottom: 18px;
    min-width: 0;
    min-height: 58px;
    padding: 8px 11px;
    border-radius: 10px;
  }

  .immersive-keyboard-guide,
  .immersive-control-divider,
  .desktop-control-copy,
  .immersive-swap-cue {
    display: none;
  }

  .touch-control-copy {
    display: block;
  }

  .immersive-wheel {
    width: 24px;
    height: 38px;
    border-radius: 14px;
  }

  .immersive-control-copy strong {
    font-size: 12px;
  }

  .immersive-progress {
    right: 16px;
    bottom: 23px;
    width: 78px;
  }

  .depth-card {
    max-width: 64vw;
  }

  .depth-card img {
    max-height: 56vh;
  }
}

@media (max-width: 720px) {
  .immersive-entry-card {
    grid-template-columns: minmax(0, 1fr) 18px;
    width: auto;
    padding-left: 10px;
  }

  .immersive-entry-stack {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .immersive-gallery,
  .immersive-intro,
  .depth-card,
  .immersive-entry-card,
  .immersive-entry-stack img,
  .immersive-entry-arrow {
    transition-duration: 1ms !important;
  }

  .immersive-wheel i {
    animation: none;
  }
}