.canvas-node-text .canvas-text-composer .canvas-text-card .canvas-text-editor-shell {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  overflow: hidden;
}

.canvas-node-text .canvas-text-composer .canvas-text-card .canvas-text-editor-shell:focus-within {
  border: 0;
  background: transparent;
  box-shadow: none;
}

.canvas-node-text.selected .canvas-text-composer .canvas-text-card .canvas-text-editor-shell,
.canvas-node-text.selected .canvas-text-composer .canvas-text-card .canvas-text-editor-shell:focus-within {
  border: 0;
  background: transparent;
  box-shadow: none;
}

.canvas-node-text .canvas-node-title::before {
  content: '≡';
  margin-right: 7px;
  font-size: 13px;
  font-weight: 700;
  opacity: 0.7;
}

.canvas-text-node-preview {
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
  padding: 2px 2px 2px 0;
  color: rgba(255, 255, 255, 0.88);
  font-size: 18px;
  line-height: 1.7;
  cursor: text;
  user-select: text;
  overflow-wrap: break-word;
}

.canvas-text-md-empty {
  color: rgba(255, 255, 255, 0.34);
  padding: 2px 0;
}

/* 只读显示窗口：不是输入框，所以不显示文本光标，但内容仍然可选中复制。 */
.canvas-text-node-preview.is-display {
  cursor: default;
  user-select: text;
}

.canvas-text-node-preview .canvas-md-h,
.canvas-node-text .canvas-md-h {
  margin: 12px 0 8px;
  line-height: 1.3;
  color: rgba(255, 255, 255, 0.96);
  font-weight: 800;
}

.canvas-text-node-preview h1.canvas-md-h {
  font-size: 26px;
  margin-top: 2px;
}

.canvas-text-node-preview h2.canvas-md-h {
  font-size: 21px;
  margin-top: 2px;
}

.canvas-text-node-preview h3.canvas-md-h {
  font-size: 18px;
  margin-top: 2px;
}

.canvas-text-node-preview .canvas-md-p {
  margin: 0 0 10px;
  white-space: pre-wrap;
}

.canvas-text-node-preview .canvas-md-list {
  margin: 0 0 10px;
  padding-left: 24px;
}

.canvas-text-node-preview .canvas-md-list li {
  margin: 3px 0;
}

.canvas-text-node-preview .canvas-md-quote {
  margin: 4px 0 10px;
  padding: 2px 0 2px 14px;
  border-left: 3px solid rgba(255, 255, 255, 0.24);
  color: rgba(255, 255, 255, 0.62);
}

.canvas-text-node-preview .canvas-md-hr {
  border: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  margin: 12px 0;
}

.canvas-text-node-preview .canvas-md-code {
  padding: 1px 6px;
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.1);
  font-family: ui-monospace, Consolas, monospace;
  font-size: 0.92em;
}

.canvas-node-text .canvas-text-ai-card {
  position: absolute;
  left: 50%;
  top: calc(100% + 14px);
  z-index: 12;
  width: calc(100% + 140px);
  min-width: 300px;
  max-width: min(760px, calc(100vw - 88px));
  min-height: 210px;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 18px;
  background: rgba(15,15,17,0.92);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.38);
  backdrop-filter: blur(16px);
  /* 可读性缩放对齐图片节点面板（.canvas-node-panel / 工作流工具栏同款）：
     卡片在缩放后的 stage 内，再乘 --text-ai-card-scale(=readable/zoom)，
     屏幕尺寸始终钳制在 1–1.35 倍，缩放画布时随画布自适应变大变小。 */
  transform: translateX(-50%) scale(var(--text-ai-card-scale, 1));
  transform-origin: center top;
  transition: transform 0.14s ease, border-color 0.15s ease, box-shadow 0.15s ease;
  animation: canvasTextAiCardIn 0.2s cubic-bezier(0.18, 0.9, 0.24, 1.08) both;
}

.canvas-node-text .canvas-text-ai-row.is-bottom {
  margin-top: auto;
}

.canvas-node-text .canvas-text-ai-input {
  flex: 1 1 auto;
  min-height: 120px;
  max-height: 360px;
  width: 100%;
  height: auto;
  box-sizing: border-box;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 12px;
  background: #0f0f0f;
  outline: none;
  resize: none;
  overflow-y: auto;
  padding: 10px 12px;
  color: rgba(255, 255, 255, 0.9);
  font-family: inherit;
  font-size: 15px;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
  transition: border-color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}

.canvas-node-text .canvas-text-ai-input::placeholder {
  color: rgba(255, 255, 255, 0.32);
}

/* 指令框被 MediaMention 升级为 contenteditable 后，仍然保持指令框的外观
   （mentions.css 的 .canvas-node-text .media-mention-editor 是给内容卡的编辑器写的）。
   高度模型对齐图片节点提示框：height:auto 随内容自适应增高，66–360 之间钳制，
   超过 360 内部滚动；滚轮不做拦截，画布缩放时整张 composer 卡随画布一起缩放。 */
.canvas-node-text .canvas-text-ai-card .media-mention-editor {
  flex: 1 1 auto;
  min-height: 120px;
  max-height: 360px;
  height: auto;
  box-sizing: border-box;
  overflow-y: auto;
  padding: 10px 12px;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 12px;
  background: #0f0f0f;
  color: rgba(255, 255, 255, 0.9);
  outline: none;
  font-family: inherit;
  font-size: 15px;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
  transition: border-color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}

.canvas-node-text .canvas-text-ai-card .media-mention-editor:empty::before {
  content: attr(data-placeholder);
  color: rgba(255, 255, 255, 0.32);
}

@keyframes canvasTextAiCardIn {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(-6px) scale(calc(var(--text-ai-card-scale, 1) * 0.97));
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0) scale(var(--text-ai-card-scale, 1));
  }
}

.canvas-node-text .canvas-text-ai-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.canvas-node-text .canvas-text-ai-model {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  max-width: 240px;
  height: 34px;
  padding: 0 12px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: rgba(255, 255, 255, 0.85);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease;
}

.canvas-node-text .canvas-text-ai-model:hover {
  background: rgba(255, 255, 255, 0.08);
}

.canvas-node-text .canvas-text-ai-model.is-empty {
  color: rgba(255, 255, 255, 0.45);
}

.canvas-node-text .canvas-text-ai-model-spark {
  font-size: 12px;
  opacity: 0.9;
  flex: 0 0 auto;
}

/* 模型徽标（Provider 声明的 logo svg，如极绘花瓣图标）：替代通用 ✦，
   尺寸按 composer 行内控件（34px）收小；stroke=currentColor 跟随按钮文字色。 */
.canvas-node-text .canvas-text-ai-model-logo {
  width: 14px;
  height: 14px;
  display: inline-flex;
  flex: 0 0 auto;
  opacity: 0.95;
}

.canvas-node-text .canvas-text-ai-model-logo svg {
  width: 100%;
  height: 100%;
  display: block;
}

.canvas-node-text .canvas-text-ai-model.is-empty .canvas-text-ai-model-spark {
  opacity: 0.5;
}

.canvas-node-text .canvas-text-ai-model-label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.canvas-node-text .canvas-text-ai-model-caret {
  width: 6px;
  height: 6px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translate(-1px, -1px);
  opacity: 0.7;
}

.canvas-node-text .canvas-text-ai-spacer {
  flex: 1 1 auto;
}

/* 「本次消耗」chip：复用生成节点面板同款 .canvas-point-cost-preview 外观，
   高度收到 34px 与 composer 行内其他控件（模型按钮/发送按钮）对齐。 */
.canvas-node-text .canvas-text-ai-row .canvas-point-cost-preview {
  height: 34px;
  padding: 0 10px;
  font-size: 12px;
}

.canvas-node-text .canvas-text-ai-row .canvas-point-cost-preview strong {
  font-size: 14px;
}

/* 统一发送按钮：与创作页 .btn-send 同款材质（半透明白圆角方块 + 纸飞机图标），
   尺寸按文本 composer 行内其他控件（34px）缩放。 */
.canvas-node-text .canvas-text-ai-run {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.7);
  line-height: 1;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.canvas-node-text .canvas-text-ai-run:hover {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
}

.canvas-node-text .canvas-text-ai-arrow {
  display: inline-flex;
}

.canvas-node-text .canvas-text-ai-arrow .ui-icon {
  width: 16px;
  height: 16px;
}

.canvas-node-text .canvas-text-ai-stop {
  width: 9px;
  height: 9px;
  border-radius: 2px;
  background: currentColor;
}

.canvas-node-text .canvas-text-ai-card.is-busy .canvas-text-ai-run {
  animation: canvas-text-ai-busy 1s ease-in-out infinite;
}

@keyframes canvas-text-ai-busy {
  0%, 100% { box-shadow: 0 0 0 0 rgba(56, 189, 248, 0); }
  50% { box-shadow: 0 0 0 4px rgba(56, 189, 248, 0.25); }
}

@media (prefers-reduced-motion: reduce) {
  .canvas-node-text .canvas-text-ai-card.is-busy .canvas-text-ai-run {
    animation: none;
  }
  .canvas-node-text .canvas-text-ai-card {
    animation: none;
  }
}