/* SVG 编辑 + AI 三列布局（仅 icon 页引用） */
.app.icon-ai-app {
  align-items: stretch;
  /* 左栏 min 280 + 右栏 min 260 时，中间列若仍 min-width:0 会被压成 0 宽导致画布「不显示」 */
  overflow-x: auto;
  overflow-y: hidden;
}

.icon-ai-preview-wrap {
  flex: 1 1 auto;
  /* 100% 相对 .app：与 min() 配合避免比视口还宽；同时保证中间列有可见宽度 */
  min-width: min(260px, 100%);
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  /* 与 styles.css .preview-wrap 一致：点阵铺满整块预览区（顶栏 + 画布 + 过渡 + 源码列） */
  background-color: #ffffff;
  background-image: radial-gradient(circle at center, #c4cad4 1px, transparent 1.05px);
  background-size: 26px 26px;
  background-position: 0 0;
}

.icon-ai-center-toolbar.preview-toolbar {
  position: relative;
  flex-shrink: 0;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 8px 10px;
}

.icon-ai-toolbar-spacer {
  min-width: 0;
}

.icon-ai-nav-capsule {
  justify-self: center;
  grid-column: 2;
}

.icon-ai-split {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}

/* 画布与源码之间：自下而上 #FAFAFA 从透明过渡到实色。
   勿用负 margin：会把 z-index 更高的源码区「拽」到画布上，整块挡住预览（尤其矮视口）。 */
.icon-ai-interpane-fade {
  flex: 0 0 auto;
  width: 100%;
  align-self: stretch;
  height: 48px;
  margin: 0;
  position: relative;
  z-index: 10;
  pointer-events: none;
  background: linear-gradient(
    rgba(250, 250, 250, 0) 0%,
    rgba(250, 250, 250, 0.06) 14%,
    rgba(250, 250, 250, 0.22) 32%,
    rgba(250, 250, 250, 0.48) 52%,
    rgba(250, 250, 250, 0.74) 72%,
    rgba(250, 250, 250, 0.92) 88%,
    #fafafa 100%
  );
}

.icon-ai-pane {
  flex: 1 1 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
  border: none;
  position: relative;
}

/* 不铺实底，透出父级 .icon-ai-preview-wrap 的点阵；整层在过渡条之下，过渡条盖住画布底部渐变 */
/* 高于过渡条与源码区，避免半透明/实底兄弟层叠时盖住画布（仅预览不显示、导出正常时优先查这里） */
.icon-ai-pane--canvas {
  z-index: 5;
  background: transparent;
  box-shadow: none;
  position: relative;
  margin: -4px 0 -48px;
}

.icon-ai-pane--source {
  z-index: 1;
  background: #fafafa;
}

.icon-ai-pane-inner {
  position: relative;
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.icon-ai-floating-bar {
  position: absolute;
  top: 10px;
  left: 10px;
  right: 10px;
  z-index: 11;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  pointer-events: none;
}

.icon-ai-floating-pill--text {
  position: static;
  pointer-events: none;
  box-sizing: border-box;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  padding: 0 12px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1;
  color: #4b5563;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: 0 2px 12px rgba(15, 23, 42, 0.06);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.icon-ai-floating-left {
  display: flex;
  align-items: center;
  z-index: 11;
  gap: 8px;
  min-width: 0;
  flex: 1 1 auto;
  pointer-events: auto;
}

.icon-ai-canvas-zoom-row {
  display: flex;
  align-items: center;
  gap: 0;
}

.icon-ai-canvas-zoom-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  padding: 0;
  margin: 0;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: #595959;
  cursor: pointer;
  flex-shrink: 0;
}

.icon-ai-canvas-zoom-btn:hover:not(:disabled) {
  color: var(--accent, #2563eb);
}

.icon-ai-canvas-zoom-btn:disabled {
  opacity: 0.32;
  cursor: not-allowed;
}

.icon-ai-canvas-zoom-btn svg {
  width: 16px;
  height: 16px;
  display: block;
  pointer-events: none;
}

.icon-ai-floating-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
  pointer-events: auto;
}

.icon-ai-reset-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 1px solid rgba(15, 23, 42, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.88);
  color: #374151;
  cursor: pointer;
  box-shadow: 0 2px 10px rgba(15, 23, 42, 0.06);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.icon-ai-reset-btn:hover {
  border-color: #cbd5e1;
  color: var(--accent);
}

.icon-ai-reset-icon {
  width: 20px;
  height: 20px;
  display: block;
}

.icon-ai-pane-inner--source {
  position: relative;
  padding-top: 44px;
}

.icon-ai-source-head {
  position: absolute;
  top: 10px;
  left: 10px;
  right: 10px;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  pointer-events: none;
}

.icon-ai-source-head > * {
  pointer-events: auto;
}

.icon-ai-source-undo-row {
  display: flex;
  align-items: center;
  gap: 4px;
}

.icon-ai-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  padding: 0;
  border: 1px solid rgba(15, 23, 42, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.88);
  color: #4b5563;
  cursor: pointer;
  box-shadow: 0 2px 10px rgba(15, 23, 42, 0.06);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.icon-ai-icon-btn:hover:not(:disabled) {
  border-color: #cbd5e1;
  color: var(--accent);
}

.icon-ai-icon-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.icon-ai-icon-btn-svg {
  width: 20px;
  height: 20px;
  display: block;
}

.icon-ai-canvas-dark-icon {
  width: 20px;
  height: 20px;
  display: block;
}

.icon-ai-canvas-dark-toggle[aria-pressed="true"] {
  color: var(--accent);
  border-color: rgba(37, 99, 235, 0.4);
  background: rgba(239, 246, 255, 0.92);
}

/* 画布预览夜间模式（仅左侧画布滚动区，不影响顶栏与源码列） */
.icon-ai-pane--canvas.is-dark-canvas .icon-ai-canvas-body {
  background-color: #1e2228;
  background-image: radial-gradient(circle at center, rgba(255, 255, 255, 0.11) 1px, transparent 1.05px);
  background-size: 26px 26px;
  background-position: 0 0;
}

.icon-ai-pane--canvas.is-dark-canvas .icon-ai-svg-host.is-empty .icon-ai-svg-placeholder {
  color: #9ca3af;
}

.icon-ai-pane--canvas.is-dark-canvas .icon-ai-svg-host.is-empty .icon-ai-svg-placeholder:hover {
  color: #93c5fd;
  background: rgba(59, 130, 246, 0.12);
}

.icon-ai-pane--canvas.is-dark-canvas .icon-ai-svg-host.is-preview-translate-nudging:not(.is-empty)::after {
  background: linear-gradient(
    110deg,
    transparent 38%,
    rgba(255, 255, 255, 0.08) 50%,
    transparent 62%
  );
}

/* 画布滚动区：占满上半 pane，与点阵（父级 preview-wrap）对齐 */
.icon-ai-canvas-body {
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
  overscroll-behavior: contain;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: stretch;
  padding: 0;
}

.icon-ai-translate-scale-fields.is-disabled {
  opacity: 0.45;
  pointer-events: none;
}

.icon-ai-translate-scale-fields.is-disabled .field-label,
.icon-ai-translate-scale-fields.is-disabled .value {
  color: var(--text-muted);
}

/* 点阵可视区：栈按内容增高，画布区 overflow:auto 才能滚完整图；勿 flex:1+min-h:0 把栈钉死在视口否则底部被裁、像被源码区遮住 */
.icon-ai-svg-stack {
  --icon-canvas-zoom: 1;
  --icon-preview-cap: 290px;
  position: relative;
  z-index: 1;
  flex: 0 0 auto;
  align-self: stretch;
  width: 100%;
  min-height: 100%;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: center;
  padding: 48px 16px 20px;
  box-sizing: border-box;
  pointer-events: auto;
}

.icon-ai-svg-host {
  flex: 0 1 auto;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: auto;
  position: relative;
  z-index: 1;
}

.icon-ai-svg-host:not(.is-empty) {
  flex: 0 0 auto;
  min-height: 0;
  min-width: 40px;
  /* 占满栈内点阵区域，避免 max-height:290px 裁切而周围点阵仍空 */
  max-height: none;
}

/* 平移拖动时画布轻柔等待感（不改变交互命中） */
.icon-ai-svg-host.is-preview-translate-nudging:not(.is-empty)::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  border-radius: 14px;
  background: linear-gradient(
    110deg,
    transparent 38%,
    rgba(255, 255, 255, 0.18) 50%,
    transparent 62%
  );
  background-size: 220% 100%;
  animation: icon-ai-preview-translate-shimmer 1s ease-in-out infinite;
  opacity: 0.65;
}

@keyframes icon-ai-preview-translate-shimmer {
  0% {
    background-position: 130% 0;
    opacity: 0.35;
  }
  50% {
    opacity: 0.72;
  }
  100% {
    background-position: -130% 0;
    opacity: 0.35;
  }
}

@media (prefers-reduced-motion: reduce) {
  .icon-ai-svg-host.is-preview-translate-nudging:not(.is-empty)::after {
    animation: none;
    opacity: 0.45;
    background: rgba(37, 99, 235, 0.06);
  }
}

.icon-ai-svg-xf-frame {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  align-self: center;
  box-sizing: border-box;
  width: calc(var(--icon-preview-cap, 290px) * var(--icon-canvas-zoom, 1));
  max-width: none;
  /* 高度受「上带区实测 − 上下重叠忽略」约束，避免盖住过渡条区域；宽度仍随 zoom 滚动画布 */
  height: min(var(--icon-upper-preview-hpx, 68vh), calc(var(--icon-preview-cap, 290px) * var(--icon-canvas-zoom, 1)));
  max-height: min(var(--icon-upper-preview-hpx, 68vh), calc(var(--icon-preview-cap, 290px) * var(--icon-canvas-zoom, 1)));
  min-width: 0;
  min-height: 0;
  transform-origin: center center;
}

/* 仅约束根 SVG；勿对子树 svg 设 max-width:100%，以免符号内部变形 */
.icon-ai-svg-host svg {
  display: block;
  flex-shrink: 0;
  transform-origin: center center;
  overflow: visible;
}

/* 根 SVG：在固定槽内缩放；父级 frame 已给明确宽高，100% 可稳定解析 */
.icon-ai-svg-xf-frame > svg {
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 100%;
}

.icon-ai-svg-host.is-empty {
  min-height: min(40vh, 220px);
}

.icon-ai-svg-host.is-empty .icon-ai-svg-placeholder {
  margin: 0;
  font-size: 13px;
  color: #9ca3af;
  text-align: center;
  padding: 24px 20px;
  line-height: 1.55;
  max-width: 280px;
  cursor: pointer;
  border-radius: 12px;
}

.icon-ai-svg-host.is-empty .icon-ai-svg-placeholder:hover {
  color: var(--accent);
  background: rgba(37, 99, 235, 0.06);
}

.icon-ai-source-body {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
  position: relative;
}

.icon-ai-source-editor {
  flex: 1 1 auto;
  min-height: 0;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  align-items: stretch;
}

.icon-ai-lineno-wrap {
  min-height: 0;
  overflow: hidden;
  border-right: 1px solid rgba(15, 23, 42, 0.06);
  background: rgba(249, 250, 251, 0.65);
}

.icon-ai-lineno {
  padding: 10px 6px 10px 10px;
  margin: 0;
  box-sizing: border-box;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 12px;
  line-height: 1.45;
  color: #9ca3af;
  text-align: right;
  white-space: pre;
  user-select: none;
  will-change: transform;
}

.icon-ai-source {
  flex: 1 1 auto;
  min-height: 0;
  width: 100%;
  margin: 0;
  padding: 10px 12px;
  border: none;
  resize: none;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 12px;
  line-height: 1.45;
  color: var(--text);
  background: transparent;
  tab-size: 2;
  /* 与行号按「物理行」对齐；长行横向滚动而非折行 */
  white-space: pre;
  overflow-x: auto;
  overflow-y: auto;
}

.icon-ai-source:focus {
  outline: none;
  box-shadow: none;
}

.icon-ai-source.is-error {
  box-shadow: inset 0 0 0 1px #dc2626;
}

/* 左侧栏：旋转预设、翻转、色块、导出 */
.icon-ai-xf-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.icon-ai-xf-bar .icon-ai-rotate-presets,
.icon-ai-xf-bar .icon-ai-flip-row {
  align-items: center;
}

.icon-ai-xf-bar .icon-ai-rotate-presets {
  display: flex;
  flex-wrap: nowrap;
  gap: 6px;
  flex: 1 1 140px;
  min-width: 0;
}

.icon-ai-xf-bar .icon-ai-flip-row {
  flex: 0 0 auto;
}

.icon-ai-rotate-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.icon-ai-preset-deg {
  flex: 1 1 0;
  box-sizing: border-box;
  min-width: 40px;
  height: 32px;
  padding: 0 4px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  cursor: pointer;
  font-family: inherit;
}

.icon-ai-preset-deg:hover {
  border-color: #93c5fd;
  background: var(--accent-soft);
}

.icon-ai-flip-row {
  display: flex;
  gap: 10px;
  align-items: center;
}

.icon-ai-flip {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  width: 32px;
  height: 32px;
  margin: 0;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #fff;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}

.icon-ai-flip:hover {
  border-color: #cbd5e1;
}

.icon-ai-flip-input {
  position: absolute;
  width: 100%;
  height: 100%;
  margin: 0;
  opacity: 0;
  cursor: pointer;
  z-index: 2;
}

.icon-ai-flip-face {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  color: #4b5563;
  pointer-events: none;
}

.icon-ai-flip-input:checked + .icon-ai-flip-face {
  color: var(--accent);
}

.icon-ai-flip:has(.icon-ai-flip-input:checked),
.icon-ai-flip.is-on {
  border-color: #93c5fd;
  background: var(--accent-soft);
}

.icon-ai-flip-svg {
  width: 18px;
  height: 18px;
  display: block;
}

.icon-ai-flip-svg .icon-ai-flip-light {
  fill: currentColor;
  fill-opacity: 0.38;
}

.icon-ai-flip-svg .icon-ai-flip-dark {
  fill: currentColor;
}

/* 侧栏与其它工具页共用 styles.css 的 .sidebar / .panel；此处仅保留 SVG 页特有控件 */

.icon-ai-btn-stack {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.icon-ai-btn-stack > .btn-primary,
.icon-ai-btn-stack > .btn-secondary {
  width: 100%;
  box-sizing: border-box;
}

.app.icon-ai-app aside.sidebar .field > .btn-primary {
  width: 100%;
  box-sizing: border-box;
}

.app.icon-ai-app aside.sidebar .panel.icon-ai-panel-export {
  margin-top: 10px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.icon-ai-export-name-field {
  margin-top: 4px;
}

.icon-ai-export-name-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 4px;
}

.icon-ai-export-basename-input {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 12px;
}

.icon-ai-export-name-suffix {
  flex-shrink: 0;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.icon-ai-side-custom-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
}

.icon-ai-side-custom-label {
  flex-shrink: 0;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
}

.icon-ai-side-custom-input {
  flex: 1 1 auto;
  min-width: 0;
  max-width: 120px;
}

.icon-ai-inline-check {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-weight: 400;
  font-size: 13px;
  line-height: 1.4;
}

.icon-ai-swatch-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.icon-ai-swatch {
  width: 32px;
  height: 32px;
  padding: 0;
  border-radius: 8px;
  border: 2px solid rgba(15, 23, 42, 0.12);
  cursor: pointer;
  box-sizing: border-box;
}

.icon-ai-swatch:hover {
  transform: scale(1.05);
}

/* 目标元素：整图 + 顶层子节点 */
.icon-ai-target-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}

.icon-ai-target-panel-head .panel-title {
  flex: 1;
  margin-bottom: 0;
}

.icon-ai-target-delete-toggle {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: auto;
  height: auto;
  padding: 0;
  margin: 0;
  border: none;
  border-radius: 0;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  box-shadow: none;
}

.icon-ai-target-delete-toggle:hover {
  color: #dc2626;
}

.icon-ai-target-delete-toggle.is-armed {
  color: #dc2626;
}

.icon-ai-target-delete-svg {
  width: 13px;
  height: 13px;
  display: block;
}

.icon-ai-target-delete-toggle[hidden] {
  display: none !important;
}

.icon-ai-target-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  max-height: 168px;
  overflow-y: auto;
  padding: 2px 0;
}

.icon-ai-target-single-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  width: 100%;
}

.icon-ai-split-svg-btn {
  flex-shrink: 0;
  padding: 8px 10px;
  font-size: 11px;
  font-weight: 600;
  line-height: 1.25;
  border-radius: 8px;
  border: 1px dashed rgba(37, 99, 235, 0.45);
  background: transparent;
  color: var(--accent);
  cursor: pointer;
  font-family: inherit;
}

.icon-ai-split-svg-btn:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.icon-ai-target-btn {
  min-width: 52px;
  max-width: 100%;
  padding: 8px 10px;
  font-size: 11px;
  font-weight: 600;
  line-height: 1.25;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text-muted);
  cursor: pointer;
  font-family: inherit;
  text-align: center;
  word-break: break-all;
}

.icon-ai-target-btn:hover {
  border-color: #cbd5e1;
  color: var(--text);
}

.icon-ai-target-btn.is-active {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
}

.icon-ai-target-btn.is-delete-pick {
  border-color: #dc2626;
  color: #dc2626;
}

.icon-ai-svg-host svg [data-pich-selected="1"] {
  outline: 2px dashed rgba(37, 99, 235, 0.45);
  outline-offset: 2px;
}

.icon-ai-size-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

/* 右侧 AI 栏 */
aside.icon-ai-chat {
  width: min(380px, 36vw);
  min-width: 260px;
  max-width: 440px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  background: var(--bg-sidebar);
  border-left: 1px solid var(--border);
  padding: 0;
  overflow: hidden;
  max-height: 100%;
  min-height: 0;
}

.icon-ai-chat > .pich-sidebar-scroll {
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
  min-height: 0;
  padding: var(--sidebar-pad-y) var(--sidebar-pad-x);
  overflow: hidden;
}

.icon-ai-chat-log {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 4px 2px 12px;
}

.icon-ai-msg {
  max-width: 100%;
  padding: 8px 10px;
  font-size: 12px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
}

/* 对话气泡：一角圆角略小（用户右下、助手左下） */
.icon-ai-msg--user {
  align-self: flex-end;
  background: var(--accent-soft);
  color: var(--text);
  border: 1px solid #bfdbfe;
  border-radius: 12px 12px 5px 12px;
}

.icon-ai-msg--system {
  align-self: flex-start;
  background: #f3f4f6;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 12px 12px 12px 5px;
}

/* 助手消息：外层无气泡；正文在 .icon-ai-msg-bubble，代码块在 .icon-ai-msg-fences */
.icon-ai-msg--assistant {
  align-self: flex-start;
  width: 100%;
  box-sizing: border-box;
  padding: 0 2px;
  overflow: visible;
  background: transparent;
  border: none;
  border-radius: 0;
  color: var(--text);
}

.icon-ai-msg-assistant-shell {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
}

.icon-ai-msg-progress {
  font-size: 11px;
  line-height: 1.45;
  color: var(--text-muted);
  padding: 0 2px 6px;
  font-variant-numeric: tabular-nums;
}

.icon-ai-msg-progress[hidden] {
  display: none !important;
}

.icon-ai-msg-bubble {
  align-self: flex-start;
  max-width: 100%;
  padding: 8px 10px;
  background: #f3f4f6;
  border: 1px solid var(--border);
  border-radius: 12px 12px 12px 5px;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.icon-ai-msg-fences {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
}

.icon-ai-msg-fences .icon-ai-fence-wrap {
  margin-top: 0;
}

/* Dify 消息反馈（点赞/点踩，仅图标） */
.icon-ai-feedback {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 2px;
  margin-top: 6px;
  padding-top: 0;
}

.icon-ai-feedback-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  padding: 0;
  font-size: 0;
  border: none;
  border-radius: 4px;
  background: transparent;
  cursor: pointer;
  color: #64748b;
}

.icon-ai-feedback-btn:hover {
  color: var(--accent);
  background: rgba(37, 99, 235, 0.08);
}

.icon-ai-feedback-btn.is-active {
  color: var(--accent);
  background: rgba(37, 99, 235, 0.12);
}

.icon-ai-feedback-btn .icon-ai-feedback-ico {
  width: 15px;
  height: 15px;
  display: block;
  pointer-events: none;
}

.icon-ai-chat-head-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  flex-shrink: 0;
  margin-bottom: 10px;
}

.icon-ai-chat-head {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

.icon-ai-chat-disclaimer {
  font-size: 10px;
  line-height: 1.35;
  color: var(--text-muted);
  text-align: right;
  max-width: 52%;
}

.icon-ai-chat-form {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 8px;
  margin-top: auto;
}

.icon-ai-chat-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 0;
  background: transparent;
  border: none;
}

.icon-ai-chat-actions .icon-ai-mini-btn {
  background: transparent;
  border: none;
  color: var(--accent);
  padding: 2px 8px;
  box-shadow: none;
}

.icon-ai-chat-actions .icon-ai-mini-btn:hover {
  border: none;
  background: rgba(37, 99, 235, 0.08);
  text-decoration: none;
}

.icon-ai-chat-input-wrap {
  position: relative;
  width: 100%;
}

.icon-ai-chat-composer-busy {
  display: none;
  position: absolute;
  left: 10px;
  top: 8px;
  max-width: calc(100% - 88px);
  z-index: 2;
  flex-direction: row;
  align-items: center;
  justify-content: flex-start;
  gap: 8px;
  pointer-events: none;
  padding: 0;
  margin: 0;
  background: transparent;
  box-sizing: border-box;
}

.icon-ai-chat-input-wrap.is-ai-busy .icon-ai-chat-composer-busy {
  display: flex;
}

.icon-ai-chat-input-wrap.is-ai-busy .icon-ai-chat-input::placeholder {
  opacity: 0;
  color: transparent;
}

.icon-ai-chat-composer-spinner {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  border: 2px solid rgba(37, 99, 235, 0.22);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: icon-ai-chat-spin 0.75s linear infinite;
}

.icon-ai-chat-composer-busy-text {
  font-size: 13px;
  line-height: 1.45;
  color: var(--text-muted);
  text-align: left;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

@media (prefers-reduced-motion: reduce) {
  .icon-ai-chat-composer-spinner {
    animation-duration: 1.5s;
  }
}

@keyframes icon-ai-chat-spin {
  to {
    transform: rotate(360deg);
  }
}

.icon-ai-chat-input {
  width: 100%;
  box-sizing: border-box;
  min-height: 72px;
  max-height: 160px;
  /* 底行给参考文案；右侧给内嵌发送按钮 */
  padding: 8px 76px 32px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 13px;
  line-height: 1.45;
  resize: vertical;
  font-family: inherit;
}

.icon-ai-ref-status--inset {
  position: absolute;
  left: 10px;
  bottom: 11px;
  max-width: calc(100% - 88px);
  margin: 0;
  pointer-events: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 10px;
  line-height: 1.3;
  color: var(--text-muted);
}

.icon-ai-chat-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-soft);
}

.icon-ai-chat-input-wrap .icon-ai-chat-send {
  position: absolute;
  right: 9px;
  bottom: 9px;
  z-index: 4;
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: 6px;
  cursor: pointer;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.08);
  margin-bottom: 5px;
}

.icon-ai-chat-input-wrap .icon-ai-chat-send:hover:not(:disabled) {
  filter: brightness(1.05);
}

.icon-ai-chat-send:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.icon-ai-mini-btn {
  padding: 4px 10px;
  font-size: 11px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  cursor: pointer;
  color: var(--text);
}

.icon-ai-mini-btn:hover {
  border-color: #93c5fd;
}

@media (max-width: 960px) {
  aside.icon-ai-chat {
    width: min(320px, 42vw);
    min-width: 220px;
  }
}

@media (max-width: 720px) {
  .app.icon-ai-app {
    flex-direction: column;
  }

  aside.icon-ai-chat {
    width: 100%;
    max-width: none;
    min-width: 0;
    min-height: 200px;
    max-height: 38vh;
    border-left: none;
    border-top: 1px solid var(--border);
  }

  .icon-ai-preview-wrap {
    flex: 1 1 auto;
    min-height: 200px;
  }
}

/* 参考 SVG 状态 */
.icon-ai-ref-status {
  margin: 0;
  font-size: 11px;
  line-height: 1.45;
  color: var(--text-muted);
}

#iconAiColorPanel.is-locked .icon-ai-color-fields {
  opacity: 0.45;
  pointer-events: none;
}

.icon-ai-color-lock-hint {
  margin: 0 0 8px;
}

.icon-ai-opacity-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
  flex-wrap: wrap;
}

.icon-ai-opacity-row .field-label {
  flex: 0 0 auto;
  margin: 0;
  min-width: 3em;
}

.icon-ai-opacity-row input[type="range"] {
  flex: 1 1 80px;
  min-width: 60px;
}

.icon-ai-opacity-val {
  font-size: 11px;
  color: var(--text-muted);
  min-width: 2.5em;
  text-align: right;
}

/* AI 消息内 Markdown 与代码块 */
.icon-ai-msg-body {
  width: 100%;
  white-space: normal;
}

.icon-ai-msg--system > .icon-ai-msg-body {
  width: 100%;
}

.icon-ai-md-text {
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 12px;
  line-height: 1.5;
}

.icon-ai-msg-body .icon-ai-md-ul {
  margin: 0.35em 0 0.55em;
  padding-left: 1.35em;
  list-style-type: disc;
  font-size: 12px;
  line-height: 1.5;
  word-break: break-word;
}

.icon-ai-msg-body .icon-ai-md-ul li {
  margin: 0.12em 0;
  display: list-item;
}

.icon-ai-msg-body .icon-ai-md-ul li strong {
  font-weight: 700;
}

.icon-ai-fence-wrap {
  position: relative;
  margin-top: 8px;
  padding: 6px;
  border-radius: 8px;
  background: #fff;
  border: 1px solid var(--border);
}

.icon-ai-msg-fences .icon-ai-fence-wrap {
  padding: 5px 6px;
  border-radius: 10px;
  border-color: #e2e8f0;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.06);
}

.icon-ai-fence-wrap.is-applied {
  border-color: #86efac;
  box-shadow: 0 0 0 1px #bbf7d0;
}

.icon-ai-msg-fences .icon-ai-fence-wrap.is-applied {
  padding: 4px 5px;
}

.icon-ai-code-fence {
  margin: 0 0 8px;
  padding: 8px 8px 40px;
  font-size: 11px;
  line-height: 1.45;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  overflow: auto;
  border-radius: 6px;
  background: #f9fafb;
  border: 1px solid #e5e7eb;
  white-space: pre;
  word-break: normal;
}

.icon-ai-msg-fences .icon-ai-code-fence {
  background: #f8fafc;
  border-color: #e2e8f0;
}

.icon-ai-code-fence.is-collapsed:not(.is-expanded) {
  max-height: calc(1.45em * 6);
  overflow: hidden;
}

.icon-ai-code-fence.is-expanded {
  max-height: min(70vh, 480px);
  overflow-x: hidden;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-word;
}

/* 代码块底部：渐变衬在按钮下方，略压住右下角 */
.icon-ai-fence-actions-bar {
  position: relative;
  margin-top: -40px;
  padding: 6px 2px 2px;
  min-height: 36px;
}

.icon-ai-fence-actions-shade {
  position: absolute;
  right: -2px;
  bottom: 0;
  left: 12%;
  height: 52px;
  border-radius: 0 0 10px 0;
  pointer-events: none;
  background: linear-gradient(
    to top,
    rgba(248, 250, 252, 0.98) 0%,
    rgba(248, 250, 252, 0.72) 42%,
    rgba(248, 250, 252, 0) 100%
  );
}

.icon-ai-msg-fences .icon-ai-fence-actions-shade {
  background: linear-gradient(
    to top,
    rgba(248, 250, 252, 0.98) 0%,
    rgba(248, 250, 252, 0.7) 40%,
    rgba(248, 250, 252, 0) 100%
  );
}

.icon-ai-fence-actions {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: flex-start;
  gap: 6px;
  width: 100%;
  margin-top: 0;
}

.icon-ai-fence-actions-spacer {
  flex: 1 1 auto;
  min-width: 4px;
}

.icon-ai-fence-action-btn {
  position: relative;
  z-index: 1;
  padding: 5px 11px;
  font-size: 11px;
  font-weight: 600;
  border: 1px solid rgba(226, 232, 240, 0.95);
  border-radius: 7px;
  cursor: pointer;
  color: var(--text);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: none;
}

.icon-ai-fence-action-btn:hover:not(:disabled) {
  border-color: #93c5fd;
  background: #fff;
}

.icon-ai-fence-action-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.icon-ai-fence-action-btn.icon-ai-fence-btn-primary {
  border-color: #93c5fd;
  background: rgba(239, 246, 255, 0.95);
}

.icon-ai-fence-expand-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  min-width: 28px;
  height: 28px;
  padding: 0;
  line-height: 0;
  font-size: 0;
  border: none;
  background: transparent;
  box-shadow: none;
  flex-shrink: 0;
}

.icon-ai-fence-expand-btn:hover:not(:disabled) {
  border: none;
  background: rgba(15, 23, 42, 0.06);
}

.icon-ai-fence-expand-btn .icon-ai-fence-expand-ico {
  width: 16px;
  height: 16px;
  display: block;
  flex-shrink: 0;
  transition: transform 0.15s ease;
}

.icon-ai-fence-expand-btn.is-expanded .icon-ai-fence-expand-ico {
  transform: rotate(180deg);
}

.icon-ai-fence-wrap.is-rejected {
  border-color: #d1d5db;
  box-shadow: none;
}

.icon-ai-msg-fences .icon-ai-fence-wrap.is-rejected {
  border-color: #d1d5db;
  box-shadow: none;
}

.icon-ai-fence-wrap.is-rejected .icon-ai-code-fence {
  opacity: 0.58;
}

.icon-ai-fence-wrap.is-rejected .icon-ai-fence-actions-bar {
  opacity: 1;
}

.icon-ai-msg--pending .icon-ai-msg-body {
  color: var(--text-muted);
}

/* 移动端整页提示：仅 PC（须高于普通弹窗 z-index） */
#iconPcOnlyGateBackdrop {
  z-index: 200;
  background: #000;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}

#iconPcOnlyGateModal.icon-ai-modal {
  z-index: 201;
}

body.icon-pc-only-blocked .pich-tool-view {
  pointer-events: none;
  user-select: none;
}

/* 参考 SVG 弹窗 */
/* HTML hidden 会被下面 .icon-ai-modal 的 display:flex 盖掉，须显式隐藏 */
.icon-ai-modal-backdrop[hidden],
.icon-ai-modal[hidden] {
  display: none !important;
}

.icon-ai-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 80;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(2px);
}

.icon-ai-modal {
  position: fixed;
  inset: 0;
  z-index: 81;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  pointer-events: none;
}

.icon-ai-modal-card {
  pointer-events: auto;
  width: min(420px, 100%);
  /* 须给定高度：仅 max-height 时 flex:1 子项 flex-basis:0 参与 intrinsic 高度会得到 0，中间滚动区被压没 */
  height: min(85vh, 560px);
  max-height: min(85vh, 560px);
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bg-sidebar, #fff);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.12);
  padding: 16px 16px 12px;
}

/* 仅 PC 门禁：卡片随内容增高，勿沿用大包窗的固定高度 */
.icon-ai-modal-card.icon-pc-only-gate__card {
  height: auto;
  max-height: none;
  min-height: 0;
  width: min(320px, 100%);
}

.icon-pc-only-gate__footer {
  justify-content: center;
  border-top: none;
  padding-top: 4px;
  margin-top: 4px;
}

/* 标题固定，中间整块滚动，底部按钮固定，避免「当前会话」列表撑出弹窗 */
.icon-ai-ref-modal-scroll {
  flex: 1 1 0;
  min-height: 0;
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  padding-right: 2px;
}

.icon-ai-modal-title {
  flex-shrink: 0;
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}

.icon-ai-modal-hint {
  flex-shrink: 0;
  margin: 0 0 10px;
  font-size: 12px;
  line-height: 1.45;
  color: var(--text-muted);
}

.icon-ai-modal-empty {
  margin: 8px 0;
  font-size: 12px;
  color: var(--text-muted);
}

.icon-ai-ref-add-block {
  flex-shrink: 0;
  margin-bottom: 4px;
}

.icon-ai-ref-add-hint {
  margin: 0 0 8px;
  font-size: 11px;
  line-height: 1.45;
  color: var(--text-muted);
}

.icon-ai-ref-add-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
}

.icon-ai-ref-paste-label {
  display: block;
  margin: 0 0 4px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
}

.icon-ai-ref-paste {
  width: 100%;
  box-sizing: border-box;
  min-height: 72px;
  max-height: 140px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 11px;
  line-height: 1.45;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  resize: vertical;
}

.icon-ai-ref-paste:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-soft);
}

.icon-ai-ref-add-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 8px;
}

.icon-ai-ref-add-actions .btn-primary {
  padding: 6px 14px;
  font-size: 13px;
}

.icon-ai-ref-subtitle {
  margin: 10px 0 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
}

.icon-ai-ref-subtitle--list {
  margin-top: 14px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
}

.icon-ai-ref-pich-block {
  flex-shrink: 0;
}

.icon-ai-ref-pich-status {
  margin: 0 0 6px;
  min-height: 1.2em;
  font-size: 11px;
  color: var(--text-muted);
}

.icon-ai-ref-pich-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
  padding: 2px;
}

.icon-ai-ref-pich-cell {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1;
  min-height: 0;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  cursor: pointer;
  color: #334155;
}

.icon-ai-ref-pich-cell:hover {
  border-color: #93c5fd;
  background: var(--accent-soft, #eff6ff);
}

.icon-ai-ref-pich-cell .iconfont {
  font-size: 22px;
  line-height: 1;
}

.icon-ai-ref-pich-pager {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.icon-ai-ref-pich-page-label {
  font-size: 11px;
  color: var(--text-muted);
  min-width: 4.5em;
  text-align: center;
}

.icon-ai-ref-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 8px;
}

.icon-ai-ref-row {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  font-size: 12px;
}

.icon-ai-ref-row input {
  margin-top: 2px;
  flex-shrink: 0;
}

.icon-ai-ref-row label {
  flex: 1 1 auto;
  cursor: pointer;
  line-height: 1.4;
  word-break: break-all;
}

.icon-ai-ref-meta {
  display: block;
  font-size: 10px;
  color: var(--text-muted);
  margin-top: 2px;
}

.icon-ai-modal-footer {
  flex-shrink: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  padding-top: 8px;
}

.icon-ai-modal-spacer {
  flex: 1 1 auto;
  min-width: 8px;
}

.icon-ai-modal-confirm {
  padding: 6px 14px;
  font-size: 13px;
}

/* —— 探索指令弹窗 —— */
.icon-ai-explore-card {
  width: min(560px, 100%);
  height: min(88vh, 640px);
  max-height: min(88vh, 640px);
}

.icon-ai-explore-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
  flex-shrink: 0;
}

.icon-ai-explore-tab {
  flex: 1 1 0;
  min-width: 0;
  padding: 8px 10px;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  color: var(--text-muted);
  cursor: pointer;
}

.icon-ai-explore-tab:hover {
  border-color: #cbd5e1;
}

.icon-ai-explore-tab.is-active {
  border-color: var(--accent, #2563eb);
  background: var(--accent-soft, #eff6ff);
  color: #1e40af;
}

.icon-ai-explore-scroll {
  flex: 1 1 0;
  min-height: 0;
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  padding-right: 2px;
}

.icon-ai-explore-panel {
  margin-bottom: 4px;
}

.icon-ai-explore-field {
  margin-bottom: 14px;
}

.icon-ai-explore-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}

.icon-ai-explore-chips {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.icon-ai-explore-chips--purpose,
.icon-ai-explore-chips--wrap {
  flex-direction: row;
  flex-wrap: wrap;
}

.icon-ai-explore-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  justify-content: flex-start;
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  font-size: 12px;
  line-height: 1.35;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  width: 100%;
  box-sizing: border-box;
}

.icon-ai-explore-chips--purpose .icon-ai-explore-chip,
.icon-ai-explore-chips--wrap .icon-ai-explore-chip {
  width: auto;
}

.icon-ai-explore-chip:hover {
  border-color: #93c5fd;
}

.icon-ai-explore-chip.is-selected {
  border-color: var(--accent, #2563eb);
  background: var(--accent-soft, #eff6ff);
  color: #1e40af;
  box-shadow: 0 0 0 1px rgba(37, 99, 235, 0.12);
}

.icon-ai-explore-free-label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  margin: 10px 0 4px;
}

.icon-ai-explore-subject {
  width: 100%;
  box-sizing: border-box;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 12px;
}

.icon-ai-explore-subject:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-soft);
}

.icon-ai-explore-edit-hint {
  margin: 0 0 12px;
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.45;
}

.icon-ai-explore-preview-block {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--border);
}

.icon-ai-explore-preview-label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.icon-ai-explore-preview {
  width: 100%;
  box-sizing: border-box;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 12px;
  line-height: 1.55;
  resize: vertical;
  min-height: 120px;
  max-height: 240px;
  background: #f8fafc;
  color: var(--text);
  font-family: inherit;
}

.icon-ai-explore-preview:focus {
  outline: none;
  border-color: #cbd5e1;
}