/* 文件描述: 无限画布视图样式 */
/* 版本号: V.0058 */

.canvas-view {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 6px;
  /* 侧栏布局下画布独占主列视口高度；≤768 侧栏变 56px 顶栏时再扣除 */
  height: 100vh;
  min-height: 460px;
}

@media (max-width: 768px) {
  .canvas-view {
    height: calc(100vh - 56px);
  }
}

.canvas-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  padding: 8px 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 2px 8px oklch(0% 0 0 / 0.04);
}

.canvas-toolbar .canvas-page-title {
  margin-right: 6px;
}

/* 画布页顶栏对齐原型（canvas.html .canvas-toolbar）：通栏直角 + 仅底部分隔线。
   用 id 提升优先级，覆盖 styles.css 的 body .canvas-toolbar 圆角卡片样式 */
body #canvas-toolbar {
  min-height: 46px;
  padding: 6px 12px;
  border: 0;
  border-bottom: 1px solid var(--border);
  border-radius: 0;
  box-shadow: none;
  background: var(--surface);
  justify-content: flex-start;
}

.canvas-tool-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.canvas-tool-status {
  margin-left: auto;
}

.canvas-select {
  max-width: 220px;
  height: 32px;
  padding: 0 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--fg);
  font: inherit;
  font-size: 13px;
}

.canvas-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 32px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--fg);
  font: inherit;
  font-size: 13px;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease;
  white-space: nowrap;
}

/* 工具栏按钮图标（图标+文字） */
.canvas-btn-ic {
  display: inline-flex;
  flex: 0 0 auto;
}

.canvas-btn-ic svg {
  width: 15px;
  height: 15px;
  display: block;
}

/* 图标优先按钮：隐藏文字、收成方形，文字保留在 data-tip/aria-label 供悬浮提示与无障碍 */
.canvas-btn-iconly {
  width: 32px;
  padding: 0;
}

.canvas-btn-iconly .canvas-btn-label {
  display: none;
}

/* 工具栏按钮固定尺寸不被 flex 压缩（含宽下拉框的分组曾把图标按钮挤窄，导致宽窄不一） */
.canvas-toolbar .canvas-btn {
  flex: 0 0 auto;
}

/* 自定义即时悬浮提示：替代延迟较长的原生 title，hover/聚焦立即显示 */
.canvas-toolbar .canvas-btn[data-tip] {
  position: relative;
}

.canvas-toolbar .canvas-btn[data-tip]::after {
  content: attr(data-tip);
  position: absolute;
  top: calc(100% + 7px);
  left: 50%;
  transform: translateX(-50%) translateY(-3px);
  z-index: 60;
  padding: 4px 8px;
  border-radius: 6px;
  background: var(--fg);
  color: var(--surface);
  font-size: 12px;
  font-weight: 400;   /* 不继承宿主按钮字重（如 is-accent 600），提示统一非粗体 */
  line-height: 1.3;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.12s ease, transform 0.12s ease;
}

/* 靠右按钮的提示向左展开，避免被页面右缘裁切 */
.canvas-toolbar .canvas-tip-left[data-tip]::after {
  left: auto;
  right: 0;
  transform: translateX(0) translateY(-3px);
}

.canvas-toolbar .canvas-btn[data-tip]:hover::after,
.canvas-toolbar .canvas-btn[data-tip]:focus-visible::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.canvas-toolbar .canvas-tip-left[data-tip]:hover::after,
.canvas-toolbar .canvas-tip-left[data-tip]:focus-visible::after {
  transform: translateX(0) translateY(0);
}

.canvas-toolbar .canvas-btn[data-tip]:disabled::after {
  display: none;
}

.canvas-btn:hover:not(:disabled) {
  background: var(--surface-raised);
  border-color: var(--border-strong);
}

.canvas-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.canvas-btn-icon {
  width: 32px;
  padding: 0;
  font-size: 18px;
  line-height: 1;
}

.canvas-btn-danger:hover:not(:disabled) {
  border-color: var(--cinnabar);
  color: var(--cinnabar);
}

/* 两击确认武装态：首击后按钮变朱砂实底提示复点（含 hover 变体防 hover 规则盖色） */
.is-confirm-armed,
.is-confirm-armed:hover,
.canvas-btn.is-confirm-armed,
.canvas-btn.is-confirm-armed:hover:not(:disabled),
.canvas-preset-del.is-confirm-armed,
.canvas-preset-del.is-confirm-armed:hover,
.canvas-template-del.is-confirm-armed,
.canvas-template-del.is-confirm-armed:hover {
  border-color: var(--cinnabar);
  background: var(--cinnabar);
  color: oklch(99% 0.002 85);
}

.canvas-btn-iconly.is-confirm-armed {
  width: auto;
  padding: 0 10px;
  font-size: 12px;
}

.canvas-zoom-group .canvas-zoom-label {
  min-width: 56px;
  font-variant-numeric: tabular-nums;
}

.canvas-save-status {
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
}

.canvas-save-status.is-saving {
  color: var(--accent);
}

.canvas-save-status.is-error {
  color: var(--cinnabar);
}

/* 主体：舞台 + 右侧检查器横向排列 */
.canvas-body {
  display: flex;
  flex: 1 1 auto;
  min-height: 0;
  gap: 10px;
}

.canvas-body.inspector-collapsed .canvas-inspector {
  display: none;
}

/* 舞台：裁剪 + 定位上下文，承载世界层与浮层 */
.canvas-stage {
  position: relative;
  flex: 1 1 auto;
  min-height: 0;
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background-color: var(--bg);
  /* 网格点阵，给出无限画布的空间感（原型 .stage.bg-dots） */
  background-image: radial-gradient(circle, oklch(84% 0.01 85) 1px, transparent 1.2px);
  background-size: 26px 26px;
  background-position: 0 0;
  touch-action: none;
  cursor: default;
  user-select: none;
}

/* 画布背景样式（原型三态）：点阵（默认）/ 网格线 / 纯色米白，由工具栏切换、按浏览器记忆 */
.canvas-stage[data-bg="dots"] {
  background-image: radial-gradient(circle, oklch(84% 0.01 85) 1px, transparent 1.2px);
}

.canvas-stage[data-bg="grid"] {
  background-image:
    linear-gradient(oklch(91% 0.008 85) 1px, transparent 1px),
    linear-gradient(90deg, oklch(91% 0.008 85) 1px, transparent 1px);
}

.canvas-stage[data-bg="plain"] {
  background-color: var(--bg);
  background-image: none;
}

.canvas-stage.is-pannable {
  cursor: grab;
}

.canvas-stage.is-panning {
  cursor: grabbing;
}

.canvas-stage.is-readonly {
  cursor: default;
}

.canvas-stage.is-dragover {
  outline: 2px dashed var(--accent);
  outline-offset: -4px;
  background-color: color-mix(in srgb, var(--accent) 6%, var(--bg));
}

/* 世界层：transform 承载 pan/zoom，原点固定左上角 */
.canvas-world {
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 0;
  transform-origin: 0 0;
  will-change: transform;
}

.canvas-node {
  position: absolute;
  box-sizing: border-box;
  border-radius: 10px;
  background: var(--surface);
  box-shadow: 0 2px 8px oklch(0% 0 0 / 0.04);
  overflow: hidden;
  transition: border-color 120ms ease;
}

.canvas-node:hover {
  border-color: var(--border-strong);
}

.canvas-node.is-selected {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  z-index: 5;
  box-shadow: 0 8px 24px oklch(0% 0 0 / 0.06);
}

/* 原型白卡（canvas.html .node）：8px 内边距 + 图区 6px 圆角 + 底部 26px 名称行 */
.canvas-node-image,
.canvas-node-video,
.canvas-node-placeholder {
  padding: 8px;
}

.canvas-node-art {
  position: relative;
  width: 100%;
  height: calc(100% - 26px);
  border-radius: 6px;
  overflow: hidden;
}

.canvas-node-caption {
  height: 26px;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 2px;
  font: 500 11px/1 var(--font-mono);
  letter-spacing: 0.06em;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: text;   /* 可双击行内重命名 */
}

/* 占位节点名称行不可重命名（名称由任务态生成），不给 text 光标暗示 */
.canvas-node-placeholder .canvas-node-caption {
  cursor: default;
}

.canvas-node-caption .canvas-layer-rename {
  width: 100%;
  height: 20px;
  font: 500 11px/1 var(--font-mono);
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  padding: 0 4px;
  background: var(--surface);
  color: var(--ink);
}

.canvas-node-image {
  border: 1px solid var(--border);
}

.canvas-node-image .canvas-node-art img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: oklch(94% 0.005 80);
  pointer-events: none;
  -webkit-user-drag: none;
  user-drag: none;
}

/* 失效图降级占位：源图被删/不可达时隐藏破图，显示虚线框 + 「图片已失效」 */
.canvas-node-image.is-broken {
  border-style: dashed;
  border-color: oklch(70% 0.02 80);
  background: oklch(96% 0.006 80);
}
.canvas-node-image.is-broken img {
  visibility: hidden;
}
.canvas-node-image.is-broken::after {
  content: "图片已失效";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  color: oklch(55% 0.02 80);
  pointer-events: none;
}

/* 视频节点：默认首帧封面 + 居中播放按钮；点击播放切换为内联 <video>
   白卡壳（原型 .node.video）：图区深墨底、封面 cover、右下 mono 时长角标 */
.canvas-node-video {
  border: 1px solid var(--border);
  background: var(--surface);
}
.canvas-video-frame {
  position: relative;
  width: 100%;
  height: calc(100% - 26px);
  border-radius: 6px;
  overflow: hidden;
  background:
    radial-gradient(100% 80% at 30% 20%, oklch(34% 0.02 75 / 0.85), transparent 60%),
    linear-gradient(155deg, oklch(30% 0.015 75), var(--deep-ink) 85%);
}
.canvas-video-poster {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
  -webkit-user-drag: none;
  user-drag: none;
}
.canvas-video-player {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: var(--deep-ink);
}
/* 播放圆钮（原型 .node.video .play：34px 米白圆 + 深色三角） */
.canvas-video-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 34px;
  height: 34px;
  border: none;
  border-radius: 50%;
  background: oklch(99% 0.002 85 / 0.92);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 120ms ease;
}
.canvas-video-play::after {
  content: "";
  display: block;
  width: 0;
  height: 0;
  margin-left: 3px;
  border-style: solid;
  border-width: 7px 0 7px 11px;
  border-color: transparent transparent transparent var(--fg);
}
.canvas-video-play:hover {
  transform: translate(-50%, -50%) scale(1.08);
}
/* 时长角标（原型 .node.video .dur：mono 10px 黑底半透明） */
.canvas-video-badge {
  position: absolute;
  right: 8px;
  bottom: 8px;
  padding: 3px 6px;
  border-radius: 4px;
  background: oklch(0% 0 0 / 0.5);
  color: oklch(97% 0.005 85);
  font: 500 10px/1 var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  pointer-events: none;
}
.canvas-video-close {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 22px;
  height: 22px;
  border: none;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.55);
  color: oklch(99% 0.002 85);
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.canvas-video-close:hover {
  background: rgba(0, 0, 0, 0.72);
}
/* 失效降级：视频源被删/不可达 */
.canvas-node-video.is-broken {
  border-style: dashed;
  border-color: oklch(70% 0.02 80);
  background: oklch(96% 0.006 80);
}
.canvas-node-video.is-broken .canvas-video-poster {
  visibility: hidden;
}
.canvas-node-video.is-broken::after {
  content: "视频已失效";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  color: oklch(55% 0.02 80);
  pointer-events: none;
}

/* 纯文字框：默认透明无底（可直接叠到图片上，与导出效果一致）；hover 时给虚线框便于抓取 */
.canvas-node-text {
  border: none;
  background: transparent;
}

/* 便签卡形态（原型 .node.note）：设了底色时补米黄描边，撑出卡片感 */
.canvas-node-text.has-bg {
  border: 1px solid oklch(87% 0.03 95);
}

.canvas-node-text:hover:not(.is-selected) {
  outline: 1px dashed var(--border-strong);
  outline-offset: 0;
}

.canvas-node-text .canvas-text-body {
  width: 100%;
  height: 100%;
  padding: 8px 10px;
  box-sizing: border-box;
  overflow: auto;
  color: var(--fg);
  line-height: 1.45;
  white-space: pre-wrap;
  word-break: break-word;
  outline: none;
}

/* 便签卡（原型 .node.note）：更松的内衬与行高、柔和前景色 */
.canvas-node-text.has-bg .canvas-text-body {
  padding: 12px 14px;
  line-height: 1.6;
  color: var(--fg-soft);
  cursor: text;
}

.canvas-node-text .canvas-text-body:empty::before {
  content: "双击编辑文本";
  color: var(--muted);
}

/* 生成占位（原型 .node.placeholder）：白卡虚线壳 + 图区呼吸底 + 底部「占位 · job」名称行 */
.canvas-node-placeholder {
  border: 1px dashed var(--border-strong);
  background: var(--surface);
  display: flex;
  flex-direction: column;
}

.canvas-ph-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  height: calc(100% - 26px);
  padding: 12px;
  box-sizing: border-box;
  border-radius: 6px;
  overflow: hidden;
  background: var(--surface-raised);
  text-align: center;
  color: var(--muted);
  /* 原型 .node.placeholder .art span：mono 小字 */
  font: 500 11px/1.5 var(--font-mono);
  letter-spacing: 0.06em;
}

.canvas-ph-spinner {
  width: 26px;
  height: 26px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: canvas-spin 0.9s linear infinite;
}

.canvas-node-placeholder.is-error .canvas-ph-spinner {
  display: none;
}

.canvas-node-placeholder.is-error {
  border-color: var(--cinnabar);
}

.canvas-ph-error {
  margin-top: 6px;
  max-width: 92%;
  font-size: 11px;
  line-height: 1.4;
  color: var(--cinnabar);
  text-align: center;
  word-break: break-word;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.canvas-ph-retry {
  margin-top: 8px;
  padding: 3px 12px;
  font-size: 12px;
  font-weight: 600;
  color: oklch(99% 0.002 85);
  background: var(--cinnabar);
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

.canvas-ph-retry:hover {
  filter: brightness(1.08);
}

.canvas-ph-cancel {
  margin-top: 8px;
  padding: 3px 12px;
  font-size: 12px;
  color: var(--muted);
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
}

.canvas-ph-cancel:hover {
  border-color: var(--muted);
}

.canvas-ph-cancel:disabled {
  opacity: 0.6;
  cursor: default;
}

.canvas-help-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(15, 23, 42, 0.45);
}

.canvas-help-panel {
  width: min(760px, 100%);
  max-height: 84vh;
  overflow: auto;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 18px 48px rgba(15, 23, 42, 0.25);
  padding: 18px 20px 22px;
}

.canvas-help-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.canvas-help-head strong {
  font-size: 16px;
  flex: 1 1 auto;
}

/* 快捷键平台切换段控件（macOS / Windows） */
.canvas-help-seg {
  display: inline-flex;
  margin-right: 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
}

.canvas-help-seg-btn {
  border: none;
  background: var(--surface-raised);
  color: var(--muted);
  font: inherit;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  cursor: pointer;
  transition: background 0.12s ease, color 0.12s ease;
}

.canvas-help-seg-btn + .canvas-help-seg-btn {
  border-left: 1px solid var(--border);
}

.canvas-help-seg-btn.is-active {
  background: var(--accent);
  color: oklch(99% 0.002 85);
}

.canvas-help-close {
  border: none;
  background: transparent;
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  color: var(--muted);
  padding: 4px 8px;
  border-radius: 6px;
}

.canvas-help-close:hover {
  background: var(--surface-raised);
}

.canvas-help-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 28px;
}

@media (max-width: 768px) {
  .canvas-help-grid {
    grid-template-columns: 1fr;
  }
}

.canvas-help-section-title {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  margin-bottom: 6px;
}

.canvas-help-row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 3px 0;
}

.canvas-help-kbd {
  flex: 0 0 auto;
  min-width: 132px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg);
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 2px 6px;
}

.canvas-help-desc {
  font-size: 13px;
  color: var(--fg);
}

.canvas-node-placeholder.is-draft {
  border-color: var(--accent);
  border-style: dashed;
  background: color-mix(in srgb, var(--accent) 8%, var(--surface-raised));
}

.canvas-node-placeholder.is-draft .canvas-ph-inner {
  color: var(--accent);
  font-weight: 600;
}

@keyframes canvas-spin {
  to { transform: rotate(360deg); }
}

/* 连线驱动生成的内联面板（叠在 stage 上，屏幕坐标定位） */
.canvas-gen-popover {
  position: absolute;
  z-index: 60;
  width: 320px;
  min-width: 264px;
  max-width: calc(100% - 28px);
  min-height: 120px;
  max-height: calc(100% - 28px);
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  background: var(--surface-raised);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  overflow: hidden;
  resize: both;
}

/* 生成类浮窗（草稿 / 按标注修改 / 白底图）：更舒展的默认高度（文本框随之变大）；内容可滚动、整窗可缩放 */
.canvas-gen-popover.is-gen {
  height: 384px;
  min-height: 320px;
}

.canvas-gen-popover-title {
  flex: 0 0 auto;
  font-size: 13px;
  font-weight: 600;
  color: var(--fg);
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}

/* 草稿浮窗主体：可滚动，随整窗缩放伸展（与「图像生成器」一致的结构） */
.canvas-gen-popover-body {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 12px;
  overflow: auto;
  min-height: 0;
}

/* 动作选项内联「?」说明：hover 或点击均弹出自定义说明气泡 */
.canvas-gen-help-wrap {
  position: relative;
  display: inline-flex;
  flex: 0 0 auto;
}

.canvas-gen-help {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  padding: 0;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface-raised);
  color: var(--muted);
  font: inherit;
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
  cursor: help;
}

.canvas-gen-help:hover,
.canvas-gen-help:focus {
  color: var(--accent);
  border-color: var(--accent);
  outline: none;
}

.canvas-gen-help-tip {
  position: absolute;
  bottom: calc(100% + 8px);
  /* 右对齐锚定：向面板内侧（左）展开。面板 overflow:hidden，居中展开会把右半截裁掉 */
  right: 0;
  z-index: 70;
  width: 248px;
  max-width: 70vw;
  padding: 8px 10px;
  white-space: pre-line;
  font-size: 12px;
  font-weight: 400;
  line-height: 1.5;
  text-align: left;
  color: var(--fg);
  background: var(--surface-raised);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
  display: none;
}

/* 点击 ? 置 is-open 显示；收起(hidden)即时隐藏，不受 hover 干扰 */
.canvas-gen-help-tip.is-open {
  display: block;
}

/* 下载格式菜单 */
.canvas-download-menu {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 168px;
}

.canvas-dl-opt {
  text-align: left;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface-raised);
  color: var(--fg);
  font: inherit;
  font-size: 12px;
  cursor: pointer;
}

.canvas-dl-opt:hover {
  border-color: var(--border-strong);
  background: var(--surface-raised);
}

/* 浮窗标题作为拖动手柄 */
.canvas-gen-popover-title.is-drag-handle {
  cursor: move;
  user-select: none;
  -webkit-user-select: none;
}

.canvas-gen-popover-title.is-drag-handle::before {
  content: "⠿";
  margin-right: 6px;
  color: var(--muted);
  font-size: 12px;
  vertical-align: 1px;
}

.canvas-gen-popover-input {
  width: 100%;
  box-sizing: border-box;
  flex: 1 1 auto;
  resize: vertical;
  min-height: 56px;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 13px;
  color: var(--fg);
  background: var(--surface);
}

.canvas-gen-popover-meta {
  font-size: 12px;
  color: var(--muted);
}

/* 多图合成：每张参考图的角色设置 */
.canvas-gen-popover-roles {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 168px;
  overflow: auto;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: color-mix(in srgb, var(--accent) 4%, var(--surface));
}

.canvas-gen-role-hint {
  font-size: 12px;
  color: var(--muted);
}

.canvas-gen-role-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.canvas-gen-role-thumb {
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  object-fit: cover;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--surface);
}

.canvas-gen-role-name {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 12px;
  color: var(--fg);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.canvas-gen-role-sel {
  flex: 0 0 auto;
  width: 96px;
}

/* 动作下拉：多图合成时的「不适用」灰显态 */
.canvas-gen-popover-action.is-na {
  color: var(--muted);
  font-style: italic;
  cursor: not-allowed;
  opacity: 0.85;
}

.canvas-gen-popover-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* 操作区每行：下拉并排（动作+? / 分辨率+比例），充分利用横向空间，不再每个控件单独占一行 */
.canvas-gen-popover-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* 视频面板·运镜预设行：紧凑小 chip（复用全局 .option-chip 视觉，这里只压尺寸） */
.canvas-vid-camera {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.canvas-vid-camera .option-chip {
  min-height: 22px;
  padding: 0 8px;
  font-size: 11px;
}

/* 画布面板空间紧凑：隐藏运镜 chip 的英文 mono 注记（独立视频页才展示） */
.canvas-vid-camera .option-chip small {
  display: none;
}

.canvas-gen-popover-row > .canvas-gen-select {
  flex: 1 1 0;
  min-width: 0;
}

.canvas-gen-popover-action {
  flex: 1 1 auto;
  min-width: 0;
}

.canvas-gen-popover-btns {
  display: flex;
  width: 100%;
  justify-content: flex-end;
  gap: 8px;
}

.canvas-gen-popover-actions button {
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--fg);
}

/* 「存为预设」次要按钮：靠左，弱化样式，与取消/生成区分 */
.canvas-gen-popover-savepreset {
  margin-right: auto;
  padding: 6px 10px !important;
  color: var(--muted) !important;
}

.canvas-gen-popover-run {
  border-color: var(--accent) !important;
  background: var(--accent) !important;
  color: oklch(99% 0.002 85) !important;
}

/* 节点工具栏「预设」一键套用菜单 */
.canvas-preset-menu {
  width: 240px;
  gap: 4px;
  max-height: 280px;
  overflow: auto;
}

.canvas-preset-row {
  display: flex;
  align-items: stretch;
  gap: 6px;
}

.canvas-preset-apply {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--fg);
  cursor: pointer;
  text-align: left;
}

.canvas-preset-apply:hover {
  border-color: var(--border-strong);
  background: var(--surface-raised);
}

.canvas-preset-name {
  max-width: 168px;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.canvas-preset-tag {
  font-size: 11px;
  color: var(--muted);
}

.canvas-preset-del {
  flex: 0 0 auto;
  width: 28px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--muted);
  font-size: 14px;
  cursor: pointer;
}

.canvas-preset-del:hover {
  border-color: var(--cinnabar);
  color: var(--cinnabar);
}

/* 缩放手柄：右下角，尺寸由 JS 按 1/scale 补偿，保持屏幕恒定大小 */
.canvas-resize-handle {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 16px;
  height: 16px;
  background: var(--accent);
  border: 2px solid var(--surface);
  border-radius: 3px;
  cursor: nwse-resize;
  transform-origin: bottom right;
}

/* 标注模式引导条：把「标注 → AI 修改」的因果显性化，顶部居中浮层 */
.canvas-annot-hint {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 25;
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: calc(100% - 24px);
  padding: 7px 8px 7px 14px;
  background: var(--surface);
  border: 1px solid var(--accent);
  border-radius: 999px;
  box-shadow: 0 8px 24px oklch(0% 0 0 / 0.06);
  font-size: 13px;
  color: var(--fg);
  white-space: nowrap;
}

.canvas-annot-hint[hidden] {
  display: none;
}

.canvas-annot-hint-arrow {
  color: var(--muted);
}

.canvas-annot-hint-done {
  height: 26px;
  padding: 0 12px;
  border: none;
  border-radius: 999px;
  background: var(--accent);
  color: oklch(99% 0.002 85);
  font: inherit;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
}

.canvas-annot-hint-done:hover {
  filter: brightness(1.05);
}

/* 组合提示外框：选中「一个组」时框出整组范围（屏幕坐标定位、随平移缩放每帧跟随，pointer 透传） */
.canvas-group-outline {
  position: absolute;
  border: 1.5px dashed var(--accent);
  border-radius: 10px;
  pointer-events: none;
  z-index: 20;
  opacity: 0.85;
}

/* 节点浮动操作条：屏幕坐标定位（stage 的绝对子元素），不随世界缩放 */

.canvas-node-toolbar {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: 0 8px 24px oklch(0% 0 0 / 0.06);
  z-index: 20;
  transform: translate(-50%, -100%);
  /* 始终单行、按内容取宽：避免靠近舞台边缘时被收缩到很窄、中文标签竖排换行（位置由 JS 夹取防裁切） */
  width: max-content;
  max-width: none;
  white-space: nowrap;
}

.canvas-node-toolbar button {
  height: 26px;
  padding: 0 8px;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: var(--fg);
  font: inherit;
  font-size: 12px;
  cursor: pointer;
}

.canvas-node-toolbar button:hover {
  background: var(--surface-raised);
}

.canvas-node-toolbar button.is-danger:hover {
  background: var(--cinnabar);
  color: oklch(99% 0.002 85);
}

.canvas-node-toolbar button.is-active {
  background: var(--accent);
  color: oklch(99% 0.002 85);
}

.canvas-node-toolbar button.is-accent {
  color: var(--accent);
  font-weight: 600;
}

/* 文字工具条内联控件：颜色 / 字体 / 字号 / 加粗 / 对齐 */
.canvas-node-toolbar .canvas-tt-color {
  width: 26px;
  height: 26px;
  padding: 3px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: none;
  cursor: pointer;
}

.canvas-tt-color-chip {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 4px;
  border: 1px solid var(--border);
}

/* 背景色钮「无背景」态：白底斜杠（取色器通用记号） */
.canvas-tt-color-chip.is-none {
  background:
    linear-gradient(135deg, transparent 44%, var(--muted) 46%, var(--muted) 54%, transparent 56%),
    var(--surface);
}

/* 文字颜色菜单：常用色九宫格 + 「滴管 / 自定义」兜底（原生取色器仅此入口） */
.canvas-color-menu {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 10px;
  width: 172px;
  min-width: 0;
  min-height: 0;
  resize: none;
}

.canvas-color-swatches {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
}

.canvas-color-swatch {
  width: 24px;
  height: 24px;
  padding: 0;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  cursor: pointer;
}

.canvas-color-swatch:hover {
  transform: scale(1.12);
}

.canvas-color-swatch.is-current {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

/* 隐藏的原生取色 input：点「滴管 / 自定义」时以 JS click() 唤起系统取色器（含滴管） */
.canvas-color-menu .canvas-color-input {
  position: absolute;
  width: 0;
  height: 0;
  padding: 0;
  border: 0;
  opacity: 0;
  pointer-events: none;
}

.canvas-node-toolbar .canvas-tt-select {
  height: 26px;
  min-height: 26px;   /* 压过全局 select 的 min-height:34px，与同排 26px 按钮等高居中 */
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--fg);
  font: inherit;
  font-size: 11px;
  padding: 0 2px;
  cursor: pointer;
}

/* 对齐下拉：单字，仅留箭头所需宽度 */
.canvas-node-toolbar .canvas-tt-align {
  width: 46px;
}

.canvas-node-toolbar .canvas-tt-size {
  width: 40px;
  height: 26px;
  min-height: 26px;   /* 压过全局 input 的 min-height:34px，与同排 26px 按钮等高居中 */
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--fg);
  font: inherit;
  font-size: 11px;
  padding: 0 2px;
}

.canvas-node-toolbar .canvas-tt-bold {
  min-width: 24px;
}

.canvas-node-toolbar .canvas-tt-bold.is-active {
  background: var(--ink-wash);
  color: var(--fg);
  border-color: var(--border-strong);
}

.canvas-node-toolbar button.is-accent:hover {
  background: var(--surface-raised);
  color: var(--accent-ink);
}

/* 节点工具条图标按钮：方形、居中线性图标（文字保留在 data-tip/aria-label） */
.canvas-node-toolbar .canvas-tt-icon {
  width: 28px;
  height: 26px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.canvas-node-toolbar .canvas-tt-icon svg {
  width: 17px;
  height: 17px;
  display: block;
}

/* 即时悬浮提示：向上展开（堆叠顺序为 工具条→名牌→图像，工具条在最上，向下会被名牌遮挡，故朝上方空白展开） */
.canvas-node-toolbar [data-tip] {
  position: relative;
}

.canvas-node-toolbar [data-tip]::after {
  content: attr(data-tip);
  position: absolute;
  bottom: calc(100% + 7px);
  left: 50%;
  transform: translateX(-50%) translateY(3px);
  z-index: 60;
  padding: 4px 8px;
  border-radius: 6px;
  background: var(--fg);
  color: var(--surface);
  font-size: 12px;
  font-weight: 400;   /* 「AI 修改」等 is-accent 按钮字重 600 会外溢到提示，此处统一非粗体 */
  line-height: 1.3;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.12s ease, transform 0.12s ease;
}

.canvas-node-toolbar [data-tip]:hover::after,
.canvas-node-toolbar [data-tip]:focus-visible::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.canvas-empty {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 22px 30px;
  text-align: center;
  color: var(--muted);
  pointer-events: none;
}

.canvas-empty strong {
  color: var(--fg);
  font-size: 16px;
}

.canvas-empty span {
  font-size: 13px;
}

.canvas-readonly-flag {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 10px;
  background: var(--cinnabar);
  color: oklch(99% 0.002 85);
  font-size: 12px;
  border-radius: var(--radius-sm);
  box-shadow: 0 2px 8px oklch(0% 0 0 / 0.04);
  z-index: 25;
}

/* P0-1 保存冲突（乐观锁）提示条：顶部居中、红框警示，提供「重新加载 / 强制覆盖」两条出路 */
.canvas-conflict-bar {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: calc(100% - 24px);
  padding: 8px 12px;
  background: var(--surface);
  border: 1px solid var(--cinnabar);
  border-radius: var(--radius-sm);
  box-shadow: 0 2px 8px oklch(0% 0 0 / 0.04);
}

.canvas-conflict-bar[hidden] {
  display: none;
}

.canvas-conflict-msg {
  font-size: 12px;
  color: var(--cinnabar);
}

/* 左下角悬浮工具坞（原型 canvas.html .dock）：背景 | − pct + | 适应 | 面板 */
.canvas-dock {
  position: absolute;
  left: 16px;
  bottom: 16px;
  z-index: 30;
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 4px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow-float);
}

.canvas-dock-btn {
  position: relative;
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
  min-width: 28px;
  height: 28px;
  padding: 0 8px;
  border: none;
  border-radius: 7px;
  background: transparent;
  color: var(--fg-soft);
  cursor: pointer;
  transition: background 0.12s ease, color 0.12s ease;
}

/* 文字型坞钮（背景/−/＋/适应）：mono 11px，对齐原型 .dock button */
.canvas-dock-word {
  font: 500 11px/1 var(--font-mono);
  letter-spacing: 0.03em;
}

.canvas-dock-btn:hover:not(:disabled) {
  background: var(--surface-raised);
}

.canvas-dock-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.canvas-dock-btn.is-on {
  background: color-mix(in srgb, var(--accent) 12%, var(--surface-raised));
  color: var(--accent);
}

.canvas-dock-sep {
  flex: 0 0 auto;
  width: 1px;
  height: 16px;
  margin: 0 3px;
  background: var(--border);
}

.canvas-dock-zoom {
  position: relative;
  flex: 0 0 auto;
  min-width: 46px;
  height: 28px;
  padding: 0 8px;
  border: none;
  border-radius: 7px;
  background: transparent;
  color: var(--fg-soft);
  font: 500 11px/1 var(--font-mono);
  letter-spacing: 0.03em;
  font-variant-numeric: tabular-nums;
  cursor: pointer;
  transition: background 0.12s ease;
}

.canvas-dock-zoom:hover {
  background: var(--surface-raised);
}

.canvas-dock-zoom.is-on {
  background: color-mix(in srgb, var(--accent) 12%, var(--surface-raised));
  color: var(--accent);
}

/* 上方弹出菜单（背景 / 缩放） */
.canvas-dock-menu {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 0;
  min-width: 168px;
  padding: 6px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-float);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.canvas-dock-menu[hidden] {
  display: none;
}

.canvas-dock-menu-right {
  left: auto;
  right: 0;
}

.canvas-dock-opt {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  height: 32px;
  padding: 0 10px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--fg);
  font: inherit;
  font-size: 13px;
  text-align: left;
  white-space: nowrap;
  cursor: pointer;
  transition: background 0.12s ease;
}

.canvas-dock-opt:hover {
  background: var(--surface-raised);
}

.canvas-dock-opt.is-active {
  color: var(--accent);
  font-weight: 600;
}

.canvas-dock-opt.is-active::after {
  content: "✓";
  margin-left: auto;
  font-weight: 600;
}

.canvas-dock-divider {
  height: 1px;
  margin: 4px 0;
  background: var(--border);
}

/* dock 按钮即时悬浮提示：在按钮上方展开（dock 处于画布底部） */
.canvas-dock [data-tip]::after {
  content: attr(data-tip);
  position: absolute;
  bottom: calc(100% + 7px);
  left: 50%;
  transform: translateX(-50%) translateY(3px);
  z-index: 60;
  padding: 4px 8px;
  border-radius: 6px;
  background: var(--fg);
  color: var(--surface);
  font-size: 12px;
  font-weight: 400;   /* dock 按钮字重 500 不外溢到提示 */
  line-height: 1.3;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.12s ease, transform 0.12s ease;
}

.canvas-dock [data-tip]:hover::after,
.canvas-dock [data-tip]:focus-visible::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* 首枚「背景」钮贴 stage 左缘：提示左对齐向右展开，避免被 stage overflow:hidden 裁掉左半 */
.canvas-dock #canvas-bg-btn[data-tip]::after {
  left: 0;
  transform: translateX(0) translateY(3px);
}

.canvas-dock #canvas-bg-btn[data-tip]:hover::after,
.canvas-dock #canvas-bg-btn[data-tip]:focus-visible::after {
  transform: translateX(0) translateY(0);
}

.canvas-dock [data-tip]:disabled::after,
.canvas-dock .is-on[data-tip]::after {
  display: none;
}

/* 「新建画布」模板菜单：空白画布 / 从模板创建 / 删模板（fixed 定位在新建按钮下方） */
.canvas-template-menu {
  position: fixed;
  z-index: 90;
  min-width: 220px;
  max-width: 320px;
  max-height: 60vh;
  overflow-y: auto;
  padding: 6px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-float);
}

.canvas-template-head {
  padding: 8px 10px 4px;
  font-size: 11px;
  color: var(--muted);
}

.canvas-template-row {
  display: flex;
  align-items: center;
  gap: 4px;
}

.canvas-template-opt {
  flex: 1;
  display: block;
  width: 100%;
  padding: 7px 10px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--fg);
  font-size: 13px;
  text-align: left;
  cursor: pointer;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.canvas-template-opt:hover {
  background: var(--surface-raised);
}

.canvas-template-del {
  flex: 0 0 auto;
  width: 26px;
  height: 26px;
  padding: 4px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}

.canvas-template-del:hover {
  background: color-mix(in oklch, var(--cinnabar) 12%, transparent);
  color: var(--cinnabar);
}

.canvas-template-del svg {
  width: 100%;
  height: 100%;
}

/* 小地图：右下角悬浮，节点缩略 + 视口框；点击/拖动平移画布；可折叠（状态 localStorage 记忆） */
.canvas-minimap {
  position: absolute;
  right: 14px;
  bottom: 14px;
  z-index: 30;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-float);
  overflow: hidden;
}

.canvas-minimap-canvas {
  display: block;
  width: 200px;
  height: 140px;
  cursor: crosshair;
  touch-action: none;   /* 拖动平移用 pointer events，禁掉浏览器手势 */
}

.canvas-minimap-toggle {
  position: absolute;
  top: 2px;
  right: 2px;
  z-index: 1;
  width: 18px;
  height: 18px;
  padding: 0;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: var(--muted);
  font-size: 12px;
  line-height: 1;
  cursor: pointer;
}

.canvas-minimap-toggle:hover {
  background: var(--surface-raised);
  color: var(--fg);
}

.canvas-minimap-toggle::before {
  content: "▾";   /* 展开态：点击收起 */
}

.canvas-minimap.is-collapsed .canvas-minimap-canvas {
  display: none;
}

.canvas-minimap.is-collapsed {
  width: 26px;
  height: 26px;
}

.canvas-minimap.is-collapsed .canvas-minimap-toggle {
  position: static;
  width: 24px;
  height: 24px;
}

.canvas-minimap.is-collapsed .canvas-minimap-toggle::before {
  content: "▴";   /* 收起态：点击展开 */
}

/* 画布内生成面板：居中悬浮 */
.canvas-genpanel {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 380px;
  height: 340px;
  min-width: 320px;
  min-height: 280px;
  max-width: calc(100% - 28px);
  max-height: calc(100% - 28px);
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-float);
  z-index: 40;
  overflow: hidden;
  resize: both;
}

.canvas-genpanel-head {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  height: 38px;
  padding: 0 8px 0 14px;
  border-bottom: 1px solid var(--border);
  background: var(--surface-raised);
  cursor: move;
  user-select: none;
  touch-action: none;
}

.canvas-genpanel-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--fg);
}

.canvas-genpanel-close {
  flex: 0 0 auto;
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--muted);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  transition: background 0.12s ease, color 0.12s ease;
}

.canvas-genpanel-close:hover {
  background: var(--surface-raised);
  color: var(--fg);
}

.canvas-genpanel-body {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 12px;
  overflow: auto;
  min-height: 0;
}

.canvas-gen-prompt {
  width: 100%;
  box-sizing: border-box;
  flex: 1 1 auto;
  resize: vertical;
  min-height: 96px;
  max-height: none;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--fg);
  font: inherit;
  font-size: 13px;
  line-height: 1.4;
}

.canvas-gen-refs {
  font-size: 12px;
  color: var(--muted);
  min-height: 16px;
}

.canvas-gen-refs.has-ref {
  color: var(--accent);
}

.canvas-gen-thumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.canvas-gen-thumb-item {
  display: flex;
  align-items: center;
  gap: 6px;
  max-width: 100%;
  padding: 4px 8px 4px 4px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
}

.canvas-gen-thumb {
  flex: 0 0 auto;
  width: 40px;
  height: 40px;
  object-fit: cover;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--surface);
}

.canvas-gen-thumb-name {
  min-width: 0;
  max-width: 180px;
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.canvas-gen-row {
  display: flex;
  gap: 8px;
}

/* 图像生成器·模型行：单控件整行铺满（模型名可能较长） */
#canvas-gen-model {
  flex: 1 1 auto;
  min-width: 0;
}

.canvas-gen-select {
  height: 34px;
  padding: 0 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--fg);
  font: inherit;
  font-size: 13px;
}

/* 图生视频·尾帧自定义下拉：原生 select 无法显示缩略图，改自定义组件（缩略图+名称 / 悬浮放大 / 悬浮高亮画布对应节点） */
.canvas-vid-last-dd {
  position: relative;
  flex: 1 1 0;
  min-width: 0;
}
.canvas-vid-last-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  width: 100%;
  cursor: pointer;
  text-align: left;
}
.canvas-vid-last-trigger:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}
.canvas-vid-last-dd .vid-last-cur {
  min-width: 0;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.canvas-vid-last-dd .vid-last-caret {
  flex: 0 0 auto;
  color: var(--muted);
  transition: transform 0.15s ease;
}
.canvas-vid-last-dd.is-open .vid-last-caret {
  transform: rotate(180deg);
}
.canvas-vid-last-menu {
  position: absolute;
  left: 0;
  right: 0;
  top: calc(100% + 4px);
  z-index: 20;
  max-height: 240px;
  overflow-y: auto;
  padding: 4px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
}
.vid-last-opt {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 6px;
  border-radius: 6px;
  cursor: pointer;
}
.vid-last-opt:hover {
  background: var(--accent-soft, rgba(37, 99, 235, 0.12));
}
.vid-last-thumb {
  flex: 0 0 auto;
  display: block;
  width: 36px;
  height: 36px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--surface);
  overflow: hidden;
}
.vid-last-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.vid-last-thumb.is-none {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.vid-last-thumb.is-none::after {
  content: "—";
  color: var(--muted);
  font-size: 14px;
}
.vid-last-name {
  min-width: 0;
  flex: 1 1 auto;
  font-size: 13px;
  color: var(--fg);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.canvas-gen-run {
  flex: 1;
  height: 34px;
  background: var(--accent);
  color: oklch(99% 0.002 85);
  border-color: var(--accent);
  font-weight: 600;
}

.canvas-gen-run:hover:not(:disabled) {
  background: var(--accent-ink);
  border-color: var(--accent-ink);
}

.canvas-gen-status {
  font-size: 12px;
  color: var(--muted);
  min-height: 16px;
}

.canvas-gen-status.is-error {
  color: var(--cinnabar);
}

.canvas-gen-status.is-success {
  color: var(--success);
}

/* 素材库选择器：覆盖在画布视图上的模态层 */
.canvas-asset-modal {
  position: absolute;
  inset: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: oklch(20% 0.02 260 / 0.45);
}

.canvas-asset-dialog {
  display: flex;
  flex-direction: column;
  width: min(760px, 100%);
  max-height: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-float);
  overflow: hidden;
}

.canvas-asset-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}

.canvas-asset-head h2 {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--fg);
}

.canvas-asset-close {
  width: 30px;
  height: 30px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--fg);
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
}

.canvas-asset-close:hover {
  background: var(--surface-raised);
  border-color: var(--border-strong);
}

.canvas-asset-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
}

.canvas-asset-bar .canvas-select {
  max-width: none;
  flex: 0 1 280px;
}

.canvas-asset-hint {
  font-size: 12px;
  color: var(--muted);
}

.canvas-asset-hint.is-error {
  color: var(--cinnabar);
}

.canvas-asset-hint.is-success {
  color: var(--success);
}

.canvas-asset-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 10px;
  padding: 16px;
  overflow: auto;
}

.canvas-asset-empty {
  grid-column: 1 / -1;
  padding: 32px 12px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}

.canvas-asset-cell {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
  text-align: left;
}

.canvas-asset-cell:hover:not(:disabled) {
  border-color: var(--accent);
  background: var(--surface-raised);
}

.canvas-asset-cell:disabled {
  opacity: 0.5;
  cursor: progress;
}

.canvas-asset-cell img {
  display: block;
  width: 100%;
  height: 96px;
  object-fit: cover;
  border-radius: 3px;
  background: oklch(94% 0.005 80);
}

.canvas-asset-cell-label {
  font-size: 11px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 导出 PNG 模态 */
.canvas-export-dialog {
  width: min(680px, 100%);
}

.canvas-export-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}

.canvas-export-name {
  flex: 1 1 180px;
}

.canvas-export-name input {
  flex: 1 1 auto;
  min-width: 0;
  height: 28px;
  padding: 0 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--fg);
  font: inherit;
  font-size: 12px;
}

.canvas-export-dl {
  text-decoration: none;
  line-height: 28px;
  text-align: center;
}

.canvas-export-hint {
  padding: 8px 16px 0;
}

.canvas-export-preview {
  padding: 16px;
  overflow: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 160px;
  /* 棋盘格底纹用于透出导出图的透明区域 */
  background-color: var(--surface);
  background-image:
    linear-gradient(45deg, var(--border) 25%, transparent 25%),
    linear-gradient(-45deg, var(--border) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, var(--border) 75%),
    linear-gradient(-45deg, transparent 75%, var(--border) 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0;
}

.canvas-export-preview img {
  max-width: 100%;
  max-height: 52vh;
  box-shadow: 0 2px 8px oklch(0% 0 0 / 0.04);
}

/* 框选矩形（屏幕坐标，stage 的绝对子元素） */
.canvas-marquee {
  position: absolute;
  z-index: 18;
  border: 1px solid var(--accent);
  background: oklch(70% 0.12 230 / 0.12);
  pointer-events: none;
}

/* 智能参考线（拖动吸附时显示，stage 的绝对子元素） */
.canvas-guide {
  position: absolute;
  z-index: 19;
  background: var(--info);
  pointer-events: none;
}

.canvas-guide-v {
  top: 0;
  bottom: 0;
  width: 1px;
}

.canvas-guide-h {
  left: 0;
  right: 0;
  height: 1px;
}

/* 锁定对象：选中时用虚线描边区分 */
.canvas-node.is-locked.is-selected {
  outline-style: dashed;
}

/* 检查器面板：右侧竖排 */
.canvas-inspector {
  flex: 0 0 252px;
  width: 252px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 12px;
  overflow: auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 2px 8px oklch(0% 0 0 / 0.04);
}

.canvas-insp-tabs {
  display: flex;
  gap: 4px;
  flex: 0 0 auto;
}

.canvas-insp-tab {
  flex: 1 1 0;
  height: 30px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-raised);
  color: var(--muted);
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: color 0.12s ease, border-color 0.12s ease, background 0.12s ease;
}

.canvas-insp-tab:hover {
  color: var(--fg);
}

.canvas-insp-tab.is-active {
  color: var(--accent);
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, var(--surface-raised));
}

.canvas-insp-pane {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.canvas-insp-pane[hidden] {
  display: none;
}

.canvas-insp-empty {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.5;
}

.canvas-insp-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

.canvas-insp-section:last-child {
  border-bottom: none;
}

.canvas-insp-title {
  margin: 0;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.03em;
}

.canvas-insp-field {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--fg);
}

.canvas-insp-field > span {
  flex: 0 0 52px;
}

.canvas-insp-field input[type="range"] {
  flex: 1 1 auto;
  min-width: 0;
}

.canvas-insp-field input[type="number"] {
  flex: 0 0 52px;
  width: 52px;
}

.canvas-insp-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.canvas-insp-btn {
  flex: 1 1 auto;
  min-width: 0;
  height: 30px;
  padding: 0 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--fg);
  font: inherit;
  font-size: 12px;
  cursor: pointer;
  white-space: nowrap;
}

.canvas-insp-btn:hover:not(:disabled) {
  background: var(--surface-raised);
  border-color: var(--border-strong);
}

.canvas-insp-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.canvas-insp-toggle {
  flex: 0 0 34px;
  width: 34px;
  padding: 0;
}

.canvas-insp-toggle.is-on {
  background: var(--accent);
  border-color: var(--accent);
  color: oklch(99% 0.002 85);
}

.canvas-insp-danger:hover:not(:disabled) {
  border-color: var(--cinnabar);
  color: var(--cinnabar);
}

.canvas-insp-mini {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: var(--fg);
}

.canvas-insp-mini input[type="number"] {
  width: 52px;
}

.canvas-insp-mini input[type="color"],
.canvas-insp-row > input[type="color"] {
  width: 30px;
  height: 28px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  cursor: pointer;
}

.canvas-insp-mini select,
.canvas-insp-field select {
  flex: 1 1 auto;
  min-width: 0;
  height: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--fg);
  font: inherit;
  font-size: 12px;
}

.canvas-insp-check {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--fg);
}

/* 中文标签不被 flex 压成竖排：CJK 每字都是断行点，须显式 nowrap（修复「对齐/阴影/背景块」换行） */
.canvas-insp-mini > span,
.canvas-insp-check > span {
  white-space: nowrap;
}

.canvas-insp-section input[type="number"] {
  height: 28px;
  padding: 0 6px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--fg);
  font: inherit;
  font-size: 12px;
}

/* 图层页签：列表铺满右侧面板剩余高度（图层多时不再被 220px 截断、底部不再留白） */
#canvas-insp-pane-layers {
  flex: 1 1 auto;
  min-height: 0;
}

.canvas-insp-layers {
  flex: 1 1 auto;
  min-height: 0;
  padding-bottom: 0;
}

/* 图层列表 */
.canvas-layers-list {
  display: flex;
  flex-direction: column;
  gap: 3px;
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
}

/* 最近删除（回收站）：固定在图层面板底部，可折叠 */
.canvas-trash {
  flex: 0 0 auto;
  border-top: 1px solid var(--border);
  padding-top: 8px;
}

.canvas-trash-head {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 2px;
  border: none;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
}

.canvas-trash-head:hover {
  color: var(--fg);
}

.canvas-trash-caret {
  display: inline-block;
  transition: transform 0.12s ease;
}

.canvas-trash-head[aria-expanded="true"] .canvas-trash-caret {
  transform: rotate(90deg);
}

.canvas-trash-count {
  margin-left: auto;
  min-width: 18px;
  padding: 0 6px;
  border-radius: 999px;
  background: var(--surface-raised);
  color: var(--muted);
  font-size: 11px;
  text-align: center;
}

.canvas-trash-list {
  display: flex;
  flex-direction: column;
  gap: 3px;
  margin-top: 6px;
  max-height: 220px;
  overflow: auto;
}

.canvas-trash-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 3px;
  border-radius: var(--radius-sm);
}

.canvas-trash-row:hover {
  background: var(--surface-raised);
}

.canvas-trash-name {
  flex: 1 1 auto;
  font-size: 12px;
  color: var(--fg);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.canvas-trash-restore {
  flex: 0 0 auto;
  padding: 2px 9px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--accent);
  font: inherit;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
}

.canvas-trash-restore:hover:not(:disabled) {
  background: var(--accent);
  color: oklch(99% 0.002 85);
  border-color: var(--accent);
}

.canvas-trash-restore:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.canvas-layer-row {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 3px 4px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
}

.canvas-layer-row.is-selected {
  border-color: var(--accent);
  background: var(--surface-raised);
}

/* 图层行首缩略图 / 类型图标 */
.canvas-layer-thumb {
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: var(--surface-raised);
  object-fit: cover;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
}

.canvas-layer-thumb-text {
  font-family: Georgia, serif;
}

.canvas-layer-label {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 12px;
  color: var(--fg);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: pointer;
}

.canvas-layer-rename {
  width: 100%;
  box-sizing: border-box;
  padding: 1px 4px;
  font: inherit;
  font-size: 12px;
  color: var(--fg);
  border: 1px solid var(--accent);
  border-radius: 4px;
  background: var(--surface-raised);
}

.canvas-layer-ic {
  flex: 0 0 24px;
  width: 24px;
  height: 24px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--surface);
  color: var(--muted);
  font-size: 11px;
  cursor: pointer;
}

.canvas-layer-ic:hover:not(:disabled) {
  background: var(--surface-raised);
  color: var(--fg);
}

.canvas-btn.is-on {
  background: var(--accent);
  border-color: var(--accent);
  color: oklch(99% 0.002 85);
}

/* ------------------------------------------------------------------ */
/* 连线（Edge）：连接点 / SVG 连线层 / 标签                              */
/* ------------------------------------------------------------------ */
/* 连接点内嵌于节点边缘内侧（因 .canvas-node 为 overflow:hidden，贴边会被裁切） */
/* 连接点用墨色：画布屏竹青预算留给生成主行动（design-system §8.1） */
.canvas-conn-dot {
  position: absolute;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--fg-soft);
  border: 2px solid var(--surface);
  box-shadow: 0 0 0 1px oklch(0% 0 0 / 0.25);
  opacity: 0;
  pointer-events: none;
  cursor: crosshair;
  z-index: 6;
  transition: opacity 0.12s ease;
}

.canvas-conn-n { left: 50%; top: 6px; margin-left: -6px; }
.canvas-conn-e { right: 6px; top: 50%; margin-top: -6px; }
.canvas-conn-s { left: 50%; bottom: 6px; margin-left: -6px; }
.canvas-conn-w { left: 6px; top: 50%; margin-top: -6px; }

.canvas-node:hover .canvas-conn-dot,
.canvas-node.is-selected .canvas-conn-dot {
  opacity: 1;
  pointer-events: auto;
}

.canvas-node.is-locked .canvas-conn-dot,
.canvas-stage.is-readonly .canvas-conn-dot {
  display: none;
}

.canvas-node.is-connect-target {
  outline: 2px dashed var(--accent);
  outline-offset: 1px;
}

/* ---------------- 图片定点标注 ---------------- */
/* 覆盖层填满图片节点；以百分比定位的标注框随节点缩放 */
.canvas-annots {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 5;
}

.canvas-annot {
  position: absolute;
  border: 2px solid var(--cinnabar);
  background: oklch(54% 0.15 30 / 0.08);
  box-sizing: border-box;
  pointer-events: auto;
  cursor: move;
}

.canvas-annot.is-selected {
  border-color: var(--cinnabar);
  box-shadow: 0 0 0 2px oklch(54% 0.15 30 / 0.35);
  background: oklch(54% 0.15 30 / 0.14);
}

/* 编号角标 */
.canvas-annot-badge {
  position: absolute;
  left: -1px;
  top: -1px;
  min-width: 16px;
  height: 16px;
  padding: 0 3px;
  background: var(--cinnabar);
  color: oklch(99% 0.002 85);
  font-size: 11px;
  line-height: 16px;
  text-align: center;
  border-radius: 3px 0 6px 0;
  font-weight: 600;
}

/* 说明文字标签：贴在框下方 */
.canvas-annot-text {
  position: absolute;
  left: 0;
  top: 100%;
  margin-top: 2px;
  max-width: 220px;
  padding: 1px 6px;
  background: rgba(17, 24, 39, 0.86);
  color: oklch(99% 0.002 85);
  font-size: 12px;
  line-height: 1.4;
  border-radius: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 删除按钮：选中或 hover 时显示 */
.canvas-annot-del {
  position: absolute;
  right: -1px;
  top: -1px;
  width: 16px;
  height: 16px;
  padding: 0;
  border: none;
  background: rgba(17, 24, 39, 0.78);
  color: oklch(99% 0.002 85);
  font-size: 13px;
  line-height: 14px;
  border-radius: 0 3px 0 6px;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.12s ease;
}

.canvas-annot:hover .canvas-annot-del,
.canvas-annot.is-selected .canvas-annot-del {
  opacity: 1;
}

/* 拖框时的临时矩形：挂在被标注节点内部、按百分比定位，随节点缩放且不被遮挡 */
.canvas-annot-temp {
  position: absolute;
  border: 2px dashed var(--cinnabar);
  background: oklch(54% 0.15 30 / 0.10);
  pointer-events: none;
  z-index: 7;
}

/* 待定态：框选完成、填写说明期间的预览，实线高亮，与最终标注观感一致 */
.canvas-annot-temp.is-pending {
  border-style: solid;
  background: oklch(54% 0.15 30 / 0.14);
  box-shadow: 0 0 0 2px oklch(54% 0.15 30 / 0.35);
}

/* 标注模式：被标注图片显示十字光标；标注框不拦截指针（让拖框可在框上起手） */
.canvas-stage.is-annot-mode .canvas-node.is-annotating {
  cursor: crosshair;
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.canvas-stage.is-annot-mode .canvas-annot {
  pointer-events: none;
}

.canvas-stage.is-annot-mode .canvas-conn-dot {
  display: none;
}

/* 关系高亮：选中单个节点时，其直接相连的邻居节点描边提示「上下游」 */
.canvas-node.is-neighbor {
  outline: 2px solid color-mix(in srgb, var(--accent) 70%, transparent);
  outline-offset: 2px;
}

/* SVG 连线层：随 world 变换；用大显式视口 + viewBox（见 canvas.js ensureEdgeLayer）以正确绘制；
   高 z-index 保证始终位于节点之上（节点用显式 z-index） */
.canvas-edge-layer {
  position: absolute;
  left: -50000px;
  top: -50000px;
  width: 100000px;
  height: 100000px;
  overflow: visible;
  pointer-events: none;
  z-index: 999999;
}

.canvas-edge-hit {
  pointer-events: stroke;
  cursor: pointer;
}

.canvas-edge-line {
  pointer-events: none;
}

.canvas-edge-line.is-selected {
  filter: drop-shadow(0 0 2px rgba(37, 99, 235, 0.65));
}

.canvas-edge-handle {
  fill: var(--accent);
  stroke: oklch(99% 0.002 85);
  stroke-width: 2;
  pointer-events: all;
  cursor: grab;
}

.canvas-edge-handle:active {
  cursor: grabbing;
}

.canvas-edge-temp {
  stroke: var(--accent);
  stroke-width: 2;
  stroke-dasharray: 6 4;
  pointer-events: none;
}

/* 图生视频预览（视频框 + 输入图→框箭头；颜色/虚线在 JS 内联设置，仅需禁用命中避免挡画布交互） */
.canvas-edge-vid-preview {
  pointer-events: none;
}
.canvas-edge-vid-preview-label {
  font-size: 14px;
  font-weight: 600;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  user-select: none;
}
/* 预览视频框可拖动：覆盖上面的 pointer-events:none，使框接收拖拽以调整视频落点 */
.canvas-edge-vid-box {
  pointer-events: auto;
  cursor: move;
}

/* 原型（canvas.html .edge-svg text）：mono 小字 + 纸面色描边代替背景框 */
.canvas-edge-label-text {
  font: 500 11px var(--font-mono);
  letter-spacing: 0.06em;
  paint-order: stroke;
  stroke: var(--surface);
  stroke-width: 4px;
  pointer-events: none;
  user-select: none;
}

/* 查看大图复用主应用「剧场」灯箱（见 styles.css .theater-*），此处不再单独定义 */