/* ==========================================================================
   EasyRenpy · 界面设计工作区（UI Builder）
   ========================================================================== */

/* ---------------------------- 工作区骨架 ---------------------------- */

.builder-workspace {
  position: absolute;
  inset: 0;
  display: flex;
  min-width: 0;
  min-height: 0;
}

.builder-layout {
  display: flex;
  align-items: stretch;
  gap: 8px;
  padding: 8px;
  width: 100%;
  height: 100%;
  min-height: 0;
  min-width: 0;
}

.builder-left {
  flex: 0 0 auto;
  width: 272px;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 0;
}
.builder-right {
  flex: 0 0 340px;
  width: 340px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 0;
  min-width: 0;
}

.builder-center {
  display: flex;
  flex: 1 1 auto;
  min-width: 0;
  min-height: 0;
}

.builder-left-top {
  flex: 0 0 auto;
  height: 240px;
  min-height: 140px;
  display: flex;
}
.builder-left-bottom {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
}
.builder-right-top {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
}
.builder-right-bottom {
  flex: 0 0 auto;
  height: 236px;
  min-height: 120px;
  display: flex;
}

.builder-panel {
  flex: 1 1 auto;
  min-height: 0;
  min-width: 0;
  width: 100%;
}

.builder-panel-header {
  height: 38px;
  padding: 0 6px 0 11px;
  gap: 6px;
  font-size: 11px;
  letter-spacing: 0.05em;
}
.builder-panel-header .panel-title {
  gap: 6px;
}

/* ---------------------------- 界面列表 ---------------------------- */

.builder-screens-body {
  padding: 5px 6px 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.builder-screen-row {
  position: relative;
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 6px 6px 6px 8px;
  border: 1px solid transparent;
  border-radius: var(--radius-s);
  cursor: pointer;
  user-select: none;
  transition:
    background 0.12s var(--ease),
    border-color 0.12s var(--ease);
}
.builder-screen-row:hover {
  background: var(--bg-hover);
}
.builder-screen-row.is-active {
  background: var(--accent-weak);
  border-color: rgba(99, 102, 241, 0.35);
}
.builder-screen-row.is-active::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  border-radius: 2px;
  background: var(--accent);
}
.builder-screen-main {
  display: flex;
  align-items: center;
  gap: 7px;
  min-width: 0;
  flex: 1;
}
.builder-screen-icon {
  flex: none;
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: 6px;
  background: var(--bg-inset);
  color: var(--text-dim);
}
.builder-screen-row.is-active .builder-screen-icon {
  color: var(--accent-text);
  background: rgba(99, 102, 241, 0.18);
}
.builder-screen-text {
  min-width: 0;
  flex: 1;
}
.builder-screen-name {
  font-size: 12.5px;
  font-weight: 600;
  line-height: 1.35;
}
.builder-screen-badges {
  display: flex;
  gap: 3px;
  flex-wrap: wrap;
  margin-top: 1px;
}
.builder-screen-badges:empty {
  display: none;
}
.builder-mini-chip {
  height: 15px;
  padding: 0 5px;
  font-size: 9px;
  font-weight: 600;
  line-height: 1;
}
.builder-screen-count {
  flex: none;
  min-width: 20px;
  height: 17px;
  padding: 0 5px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: var(--bg-inset);
  color: var(--text-faint);
  font-size: 10px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.builder-screen-actions {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  gap: 0;
  padding-left: 14px;
  background: linear-gradient(to right, transparent, var(--bg-hover) 22%);
  border-radius: var(--radius-s);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.12s var(--ease);
}
.builder-screen-row:hover .builder-screen-actions {
  opacity: 1;
  pointer-events: auto;
}
.builder-screen-row.is-active .builder-screen-actions {
  background: linear-gradient(to right, transparent, #23284a 22%);
}
html[data-theme="light"] .builder-screen-row.is-active .builder-screen-actions {
  background: linear-gradient(to right, transparent, #eef0fd 22%);
}
.builder-screen-row .builder-screen-count {
  transition: opacity 0.12s var(--ease);
}
.builder-screen-row:hover .builder-screen-count {
  opacity: 0;
}
.builder-screens-empty {
  padding: 20px 12px;
}

/* ---------------------------- 控件库 ---------------------------- */

.builder-palette-search {
  flex: none;
  padding: 8px 8px 2px;
}
.builder-palette-filter {
  height: 28px;
  font-size: 12px;
}
.builder-palette-body {
  padding: 2px 8px 12px;
}
.builder-palette-group {
  margin-bottom: 4px;
}
.builder-palette-title {
  padding: 8px 2px 5px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
}
.builder-palette-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5px;
}
.builder-palette-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 6px;
  height: 34px;
  padding: 0 7px;
  border: 1px solid var(--border);
  border-radius: var(--radius-s);
  background: var(--bg-elev);
  cursor: grab;
  user-select: none;
  transition:
    background 0.12s var(--ease),
    border-color 0.12s var(--ease),
    transform 0.08s var(--ease);
}
.builder-palette-item:hover {
  background: var(--bg-hover);
  border-color: var(--border-strong);
}
.builder-palette-item:active {
  cursor: grabbing;
  transform: scale(0.98);
}
.builder-palette-item.is-dragging {
  opacity: 0.45;
}
.builder-palette-icon {
  flex: none;
  display: grid;
  place-items: center;
  width: 20px;
  height: 20px;
}
.builder-palette-label {
  font-size: 11.5px;
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
}
.builder-palette-badge {
  position: absolute;
  top: 2px;
  right: 3px;
  font-size: 8px;
  font-weight: 700;
  color: var(--text-faint);
  letter-spacing: 0.02em;
  opacity: 0.7;
}

/* 我的模板（控件库 v1.1，见 ARCHITECTURE.md §16.5） */
.builder-template-group .builder-palette-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
}
.builder-template-title-actions {
  display: inline-flex;
  align-items: center;
}
.builder-template-save-btn {
  width: 22px !important;
  height: 22px !important;
  color: var(--text-faint);
}
.builder-template-save-btn:hover {
  color: var(--accent-text);
}
.builder-template-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.builder-template-card {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 6px 5px 6px 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-s);
  background: var(--bg-elev);
  cursor: pointer;
  user-select: none;
  transition:
    background 0.12s var(--ease),
    border-color 0.12s var(--ease);
}
.builder-template-card:hover {
  background: var(--bg-hover);
  border-color: var(--border-strong);
}
.builder-template-card.is-dragging {
  opacity: 0.45;
}
.builder-template-icon {
  flex: none;
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: var(--accent-weak);
  color: var(--accent-text);
}
.builder-template-info {
  flex: 1;
  min-width: 0;
}
.builder-template-name {
  font-size: 11.5px;
  font-weight: 600;
  line-height: 1.3;
}
.builder-template-meta {
  margin-top: 1px;
  font-size: 9.5px;
  color: var(--text-faint);
}
.builder-template-delete {
  flex: none;
  width: 22px !important;
  height: 22px !important;
  opacity: 0;
  transition: opacity 0.12s var(--ease);
}
.builder-template-card:hover .builder-template-delete {
  opacity: 1;
}
.builder-template-empty {
  padding: 7px 8px;
  border: 1px dashed var(--border);
  border-radius: var(--radius-s);
  color: var(--text-faint);
  font-size: 10.5px;
  line-height: 1.55;
}
.builder-template-save .field {
  margin-bottom: 12px;
}
.builder-save-template-btn {
  padding: 0 8px;
}

/* ---------------------------- 图层树 ---------------------------- */

.builder-tree-body {
  padding: 4px 5px 8px;
}
.builder-tree-row {
  position: relative;
  display: flex;
  align-items: center;
  gap: 3px;
  height: 25px;
  padding-right: 3px;
  padding-left: calc(2px + var(--depth, 0) * 13px);
  border-radius: 5px;
  cursor: pointer;
  user-select: none;
  color: var(--text-dim);
}
.builder-tree-row:hover {
  background: var(--bg-hover);
  color: var(--text);
}
.builder-tree-row.is-selected {
  background: var(--accent-weak);
  color: var(--text);
}
.builder-tree-row.is-primary {
  box-shadow: inset 2px 0 0 var(--accent);
}
.builder-tree-row.is-hidden .builder-tree-label {
  opacity: 0.55;
  font-style: italic;
}
.builder-tree-caret {
  flex: none;
  width: 14px;
  height: 14px;
  display: grid;
  place-items: center;
  color: var(--text-faint);
  border-radius: 3px;
}
.builder-tree-caret:hover {
  background: var(--bg-active);
  color: var(--text-dim);
}
.builder-tree-caret.is-collapsed svg {
  transform: rotate(-90deg);
}
.builder-tree-caret.is-empty {
  opacity: 0;
  cursor: default;
}
.builder-tree-icon {
  flex: none;
  display: grid;
  place-items: center;
  width: 16px;
}
.builder-tree-label {
  flex: 1;
  font-size: 11.5px;
  min-width: 0;
}
.builder-tree-eye {
  opacity: 0;
  flex: none;
  width: 22px !important;
  height: 22px !important;
}
.builder-tree-row:hover .builder-tree-eye,
.builder-tree-row.is-selected .builder-tree-eye,
.builder-tree-eye.active {
  opacity: 1;
}
.builder-tree-empty {
  padding: 22px 12px;
}

/* ---------------------------- 属性面板 ---------------------------- */

.builder-inspector-inner {
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
  min-height: 0;
  width: 100%;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-m);
  overflow: hidden;
}
.builder-inspector-body {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 10px 12px 22px;
}
.builder-inspector-empty {
  padding: 40px 20px;
}

.builder-widget-head {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 2px 0 10px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 4px;
}
.builder-widget-icon {
  flex: none;
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--bg-inset);
  border: 1px solid var(--border);
}
.builder-widget-title {
  flex: 1;
  min-width: 0;
}
.builder-widget-title-main {
  font-size: 13px;
  font-weight: 700;
  line-height: 1.3;
}
.builder-widget-id {
  font-size: 10px;
  color: var(--text-faint);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.builder-widget-actions {
  flex: none;
  display: flex;
  gap: 2px;
}

.builder-section {
  margin-top: 15px;
}
.builder-section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 2px 0 7px;
  margin-bottom: 10px;
  border-bottom: 1px solid var(--border);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-faint);
}
.builder-section-body {
  min-width: 0;
}
.builder-field {
  margin-bottom: 11px;
}
.builder-field:last-child {
  margin-bottom: 2px;
}
.builder-field .field-label {
  font-size: 11.5px;
}
.builder-row-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 9px;
}

/* 布局几何输入 */
.builder-geom-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}
.builder-geom-cell {
  display: flex;
  align-items: center;
  gap: 5px;
  height: 31px;
  padding: 0 3px 0 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-s);
  background: var(--bg-inset);
  transition: border-color 0.12s var(--ease);
}
.builder-geom-cell:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-weak);
}
.builder-geom-cell > span {
  flex: none;
  width: 12px;
  font-size: 10px;
  font-weight: 700;
  color: var(--text-faint);
  font-family: var(--font-code);
}
.builder-num-input {
  flex: 1;
  min-width: 0;
  height: 27px;
  padding: 0 2px;
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 12px;
  font-family: var(--font-code);
  outline: none;
  -moz-appearance: textfield;
  appearance: textfield;
}
.builder-num-input::-webkit-outer-spin-button,
.builder-num-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.builder-geom-grid.is-disabled .builder-geom-cell {
  opacity: 0.5;
}
.builder-anchor-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 8px;
}
.builder-anchor-group {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 2px;
  border: 1px solid var(--border);
  border-radius: var(--radius-s);
  background: var(--bg-inset);
}
.builder-anchor-btn {
  min-width: 30px;
  height: 24px;
  padding: 0 6px;
  border: none;
  background: transparent;
  color: var(--text-dim);
  font-size: 11px;
}
.builder-anchor-btn:hover:not(:disabled) {
  background: var(--bg-hover);
  color: var(--text);
}
.builder-anchor-btn:disabled {
  opacity: 0.4;
}
.builder-layout-advanced {
  margin-top: 7px;
  font-size: 10px;
  line-height: 1.5;
  opacity: 0.75;
}

/* 资源 / 图片 */
.builder-image-input-row {
  display: flex;
  align-items: center;
  gap: 5px;
}
.builder-image-input-row .input {
  flex: 1;
  min-width: 0;
  font-size: 11.5px;
}
.builder-image-preview {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 7px;
  padding: 5px;
  border: 1px solid var(--border);
  border-radius: var(--radius-s);
  background: var(--bg-inset);
}
.builder-image-preview img {
  width: 54px;
  height: 34px;
  object-fit: contain;
  border-radius: 3px;
  background: rgba(0, 0, 0, 0.25);
  flex: none;
}
.builder-image-preview-path {
  font-size: 10px;
  color: var(--text-faint);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.builder-asset-row {
  display: flex;
  align-items: center;
  gap: 6px;
}
.builder-asset-current {
  flex: 1;
  min-width: 0;
  height: 31px;
  display: flex;
  align-items: center;
  padding: 0 9px;
  border: 1px solid var(--border);
  border-radius: var(--radius-s);
  background: var(--bg-inset);
  color: var(--text-dim);
  font-size: 11px;
}
.builder-readonly-value {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 31px;
  border: 1px dashed var(--border);
  border-radius: var(--radius-s);
  background: var(--bg-inset);
  color: var(--text-dim);
  font-size: 12px;
}
.builder-screen-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-bottom: 4px;
}

/* action 编辑器 */
.builder-action-editor {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.builder-action-target {
  display: flex;
  flex-direction: column;
}
.builder-action-editor.is-compact .select,
.builder-action-editor.is-compact .input {
  height: 27px;
  font-size: 11.5px;
}
.builder-action-editor.is-compact {
  gap: 4px;
}
.input-sm {
  height: 27px !important;
  font-size: 11.5px !important;
}
.select-sm {
  height: 27px !important;
  font-size: 11.5px !important;
}
/* Function action 参数与实时代码预览（v1.1） */
.builder-action-args {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.builder-action-preview {
  padding: 5px 8px;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-s);
  background: var(--bg-inset);
  color: var(--accent-text);
  font-family: var(--font-code);
  font-size: 10.5px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-all;
}
.builder-action-preview.is-empty {
  color: var(--text-faint);
  border-color: var(--border);
}
.builder-action-hint {
  margin-top: 2px;
  font-size: 10.5px;
}
.builder-action-editor.is-compact .builder-action-preview {
  padding: 4px 6px;
  font-size: 10px;
}
.builder-action-editor.is-compact .builder-action-hint {
  font-size: 10px;
}

/* 热区编辑器 */
.builder-hotspots-field {
  margin-top: 2px;
}
.builder-hotspots-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}
.builder-hotspot-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.builder-hotspot-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 7px;
  border: 1px solid var(--border);
  border-radius: var(--radius-s);
  background: var(--bg-inset);
  cursor: pointer;
  transition:
    border-color 0.12s var(--ease),
    background 0.12s var(--ease);
}
.builder-hotspot-row:hover {
  border-color: var(--border-strong);
}
.builder-hotspot-row.is-active {
  border-color: #fb7185;
  background: rgba(251, 113, 133, 0.1);
}
.builder-hotspot-row-head {
  display: flex;
  align-items: center;
  gap: 6px;
}
.builder-hotspot-index {
  flex: none;
  width: 17px;
  height: 17px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: rgba(251, 113, 133, 0.2);
  color: #fda4af;
  font-size: 10px;
  font-weight: 700;
}
.builder-hotspot-empty {
  padding: 10px 10px;
  border: 1px dashed var(--border);
  border-radius: var(--radius-s);
  color: var(--text-faint);
  font-size: 11px;
  line-height: 1.6;
}

/* 代码预览 */
.builder-code-wrap {
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.builder-code-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}
.builder-code-preview {
  margin: 0;
  padding: 14px 16px;
  max-height: min(56vh, 620px);
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-s);
  background: var(--bg-inset);
  color: var(--text);
  font-family: var(--font-code);
  font-size: 12px;
  line-height: 1.65;
  white-space: pre;
  tab-size: 4;
}
.builder-code-missing {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 9px;
  padding: 22px 10px;
  text-align: center;
  color: var(--text-dim);
}
.builder-code-missing-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
}
.builder-code-missing svg {
  color: var(--warn);
}

/* ---------------------------- 设计画布 ---------------------------- */

.builder-canvas {
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
  min-width: 0;
  min-height: 0;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-m);
  overflow: hidden;
}

.builder-canvas-toolbar {
  display: flex;
  align-items: center;
  gap: 3px;
  flex: none;
  height: 42px;
  padding: 0 8px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-panel);
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
}
.builder-canvas-toolbar::-webkit-scrollbar {
  display: none;
}
.builder-toolbar-group {
  display: flex;
  align-items: center;
  gap: 1px;
  flex: none;
}
.builder-toolbar-info {
  gap: 7px;
  min-width: 0;
}
.builder-toolbar-icon {
  flex: none;
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: var(--accent-weak);
  color: var(--accent-text);
}
.builder-toolbar-name {
  font-size: 12.5px;
  font-weight: 600;
  max-width: 150px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.builder-size-chip {
  height: 19px;
  font-size: 9.5px;
  font-weight: 600;
  font-family: var(--font-code);
  padding: 0 6px;
  color: var(--text-faint);
}
.builder-toolbar-sep {
  flex: none;
  width: 1px;
  height: 20px;
  margin: 0 5px;
  background: var(--border);
}
.builder-tool-btn {
  width: 26px !important;
  height: 26px !important;
  color: var(--text-dim);
}
.builder-tool-btn:hover:not(:disabled) {
  color: var(--text);
}
.builder-toggle {
  height: 26px;
  padding: 0 8px;
  border-color: transparent;
  background: transparent;
  color: var(--text-dim);
  font-size: 11.5px;
}
.builder-toggle:hover:not(:disabled) {
  background: var(--bg-hover);
  border-color: transparent;
  color: var(--text);
}
.builder-toggle.active {
  background: var(--accent-weak);
  color: var(--accent-text);
  border-color: transparent;
}
.builder-zoom-group {
  gap: 2px;
}
.builder-zoom-value {
  min-width: 50px;
  height: 26px;
  padding: 0 4px;
  border-color: transparent;
  background: transparent;
  color: var(--text-dim);
  font-size: 11px;
  font-family: var(--font-code);
  font-variant-numeric: tabular-nums;
}
.builder-zoom-value:hover {
  background: var(--bg-hover);
  color: var(--text);
}

/* 舞台 */
.builder-stage {
  position: relative;
  flex: 1 1 auto;
  min-height: 0;
  overflow: hidden;
  background-color: var(--canvas-bg);
  background-image: radial-gradient(var(--canvas-dot) 1px, transparent 1px);
  background-size: 18px 18px;
  touch-action: none;
}
.builder-stage.is-pan-ready {
  cursor: grab;
}
.builder-stage.is-panning {
  cursor: grabbing;
}
body.builder-dragging,
body.builder-dragging * {
  cursor: grabbing !important;
  user-select: none !important;
}

.builder-camera {
  position: absolute;
  left: 0;
  top: 0;
  transform-origin: 0 0;
  will-change: transform;
}
.builder-artboard {
  position: relative;
  overflow: hidden;
  box-shadow:
    0 18px 60px rgba(0, 0, 0, 0.55),
    0 0 0 1px var(--border-strong);
  border-radius: 2px;
}
html[data-theme="light"] .builder-artboard {
  box-shadow:
    0 16px 48px rgba(23, 37, 68, 0.22),
    0 0 0 1px var(--border-strong);
}
.builder-grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(148, 163, 184, 0.13) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(148, 163, 184, 0.13) 1px, transparent 1px);
  background-size: var(--builder-grid-size, 20px) var(--builder-grid-size, 20px);
  opacity: 0.9;
}
.builder-artboard.no-grid .builder-grid {
  display: none;
}
.builder-base-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.5;
}
.builder-items {
  position: absolute;
  inset: 0;
}
.builder-overlay {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 5;
}

/* 选中框 / 手柄 / 参考线 */
.builder-selection {
  position: absolute;
  border: 1.5px solid var(--accent);
  pointer-events: none;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.12);
}
.builder-selection.is-hidden {
  border-style: dashed;
  opacity: 0.6;
}
.builder-selection-label {
  position: absolute;
  padding: 1.5px 6px;
  border-radius: 4px;
  background: var(--accent);
  color: #fff;
  font-size: 10px;
  font-weight: 600;
  line-height: 1.5;
  white-space: nowrap;
  pointer-events: none;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.35);
}
.builder-size-badge {
  position: absolute;
  transform: translateX(-100%);
  padding: 1.5px 6px;
  border-radius: 4px;
  border: 1px solid var(--border-strong);
  background: rgba(10, 12, 18, 0.92);
  color: #c7d2fe;
  font-family: var(--font-code);
  font-size: 10px;
  line-height: 1.5;
  white-space: nowrap;
  pointer-events: none;
}
html[data-theme="light"] .builder-size-badge {
  background: rgba(27, 35, 51, 0.92);
  color: #e0e7ff;
}
.builder-handle {
  position: absolute;
  width: 9px;
  height: 9px;
  margin: -5px 0 0 -5px;
  border: 1.5px solid var(--accent);
  border-radius: 2px;
  background: #fff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
  pointer-events: auto;
  z-index: 2;
}
.builder-handle-nw {
  cursor: nwse-resize;
}
.builder-handle-n {
  cursor: ns-resize;
}
.builder-handle-ne {
  cursor: nesw-resize;
}
.builder-handle-e {
  cursor: ew-resize;
}
.builder-handle-se {
  cursor: nwse-resize;
}
.builder-handle-s {
  cursor: ns-resize;
}
.builder-handle-sw {
  cursor: nesw-resize;
}
.builder-handle-w {
  cursor: ew-resize;
}
.builder-hover-outline {
  position: absolute;
  border: 1px dashed var(--accent-hover);
  opacity: 0.8;
  pointer-events: none;
}
.builder-hover-label {
  position: absolute;
  left: 0;
  top: -18px;
  padding: 0 5px;
  border-radius: 3px;
  background: var(--accent-hover);
  color: #fff;
  font-size: 9px;
  line-height: 16px;
  white-space: nowrap;
}
.builder-guide {
  position: absolute;
  pointer-events: none;
  z-index: 3;
}
.builder-guide-v {
  top: -10000px;
  width: 1px;
  height: 100000px;
  background: #f472b6;
  box-shadow: 0 0 4px rgba(244, 114, 182, 0.8);
}
.builder-guide-h {
  left: -10000px;
  width: 100000px;
  height: 1px;
  background: #f472b6;
  box-shadow: 0 0 4px rgba(244, 114, 182, 0.8);
}
.builder-drop-target {
  position: absolute;
  border: 1.5px dashed var(--accent-hover);
  background: rgba(99, 102, 241, 0.12);
  border-radius: 4px;
  pointer-events: none;
  z-index: 1;
}
.builder-drop-target-label {
  position: absolute;
  left: 3px;
  top: 3px;
  padding: 0 5px;
  border-radius: 3px;
  background: var(--accent);
  color: #fff;
  font-size: 9px;
  line-height: 16px;
  white-space: nowrap;
}
.builder-marquee {
  position: absolute;
  border: 1px solid var(--accent);
  background: rgba(99, 102, 241, 0.16);
  pointer-events: none;
  z-index: 4;
}

/* 热区 */
.builder-hotspot-area {
  position: absolute;
  pointer-events: auto;
  cursor: crosshair;
  background: rgba(251, 113, 133, 0.05);
  outline: 1px dashed rgba(251, 113, 133, 0.55);
  outline-offset: -1px;
}
.builder-hotspot-box {
  position: absolute;
  pointer-events: none;
  border: 1px solid rgba(251, 113, 133, 0.85);
  background: rgba(251, 113, 133, 0.14);
  border-radius: 2px;
  z-index: 2;
}
.builder-hotspot-box.is-interactive {
  pointer-events: auto;
  cursor: move;
}
.builder-hotspot-box.is-active {
  border-color: #fb7185;
  background: rgba(251, 113, 133, 0.3);
  box-shadow: 0 0 0 1px rgba(251, 113, 133, 0.45);
}
.builder-hotspot-box.is-preview {
  border-style: dashed;
  background: rgba(251, 113, 133, 0.22);
}
.builder-hotspot-label {
  position: absolute;
  left: 2px;
  top: 2px;
  padding: 0 4px;
  border-radius: 3px;
  background: rgba(190, 18, 60, 0.88);
  color: #fff;
  font-size: 9px;
  line-height: 14px;
  white-space: nowrap;
  pointer-events: none;
}
.builder-hotspot-handle {
  position: absolute;
  width: 9px;
  height: 9px;
  margin: -5px 0 0 -5px;
  border: 1.5px solid #fff;
  border-radius: 50%;
  background: #fb7185;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
  pointer-events: auto;
  cursor: nwse-resize;
  z-index: 3;
}

/* 空状态 / 提示 */
.builder-empty-state {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 30px;
  text-align: center;
}
.builder-empty-art {
  display: grid;
  place-items: center;
  width: 88px;
  height: 88px;
  margin-bottom: 4px;
  border-radius: 22px;
  border: 1px dashed var(--border-strong);
  background: linear-gradient(160deg, var(--bg-elev), var(--bg-panel));
  color: var(--accent-text);
  opacity: 0.9;
}
.builder-empty-title {
  font-size: 17px;
  font-weight: 700;
}
.builder-empty-desc {
  max-width: 380px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--text-faint);
}
.builder-empty-state .btn {
  margin-top: 6px;
}
.builder-canvas-hint {
  position: absolute;
  left: 50%;
  bottom: 22px;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(14, 16, 20, 0.82);
  color: var(--text-dim);
  font-size: 11.5px;
  white-space: nowrap;
  pointer-events: none;
  backdrop-filter: blur(5px);
  box-shadow: var(--shadow-1);
  z-index: 6;
}
html[data-theme="light"] .builder-canvas-hint {
  background: rgba(255, 255, 255, 0.92);
}

.builder-hud {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: none;
  height: 29px;
  padding: 0 10px;
  border-top: 1px solid var(--border);
  background: var(--bg-panel);
  font-size: 10.5px;
  color: var(--text-dim);
}
.builder-hud-info {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.builder-hud-hint {
  flex: none;
  color: var(--text-faint);
  font-size: 10px;
}

/* ---------------------------- 画布中的控件外观（designMode） ---------------------------- */

.builder-items .er-widget {
  user-select: none;
}
.builder-artboard .er-container {
  outline: 1px dashed rgba(148, 163, 184, 0.2);
  outline-offset: -1px;
}
.builder-artboard .er-hidden-widget {
  opacity: 0.35 !important;
  outline: 1px dashed rgba(148, 163, 184, 0.65);
  outline-offset: -1px;
  background-image: repeating-linear-gradient(
    45deg,
    rgba(148, 163, 184, 0.07) 0 6px,
    transparent 6px 12px
  );
}
.builder-artboard .er-empty-box {
  outline: 1px dashed rgba(148, 163, 184, 0.45);
  outline-offset: -1px;
}
.builder-artboard .er-null {
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(148, 163, 184, 0.8);
  font-size: 10px;
  font-family: var(--font-code);
}
.builder-artboard .er-image-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  border: 1px dashed rgba(148, 163, 184, 0.45);
  background: rgba(148, 163, 184, 0.06);
  color: rgba(148, 163, 184, 0.85);
  font-size: 12px;
}

/* ---------------------------- screen-render 基础样式 ---------------------------- */

.er-screen {
  font-family: var(--font-ui);
  line-height: 1.2;
  -webkit-font-smoothing: antialiased;
}
.er-screen * {
  box-sizing: border-box;
}
.er-widget {
  box-sizing: border-box;
}
.er-text button,
.er-textbutton span {
  pointer-events: none;
}
.er-viewport::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
.er-viewport::-webkit-scrollbar-thumb {
  background: rgba(148, 163, 184, 0.5);
  border-radius: 8px;
}
.er-screen-outer {
  image-rendering: auto;
}

/* ==========================================================================
   v1.2：多选 / 拖拽排序 / 字体格式
   ========================================================================== */

/* 批量操作条（屏幕列表等） */
.builder-batch-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: none;
  padding: 5px 8px;
  border-bottom: 1px solid var(--border);
  background: var(--accent-weak);
}
.builder-batch-bar[hidden] {
  display: none;
}
.builder-batch-count {
  height: 18px;
  padding: 0 6px;
  font-size: 9.5px;
  flex: none;
}
.builder-batch-bar .btn {
  height: 24px;
  padding: 0 7px;
  font-size: 11px;
}
.builder-batch-bar .btn-icon {
  width: 24px;
  height: 24px;
}

/* 屏幕列表多选 / 拖拽 */
.builder-screen-row.is-selected {
  background: rgba(99, 102, 241, 0.1);
  border-color: rgba(99, 102, 241, 0.45);
}
.builder-screen-row.is-selected.is-active {
  background: var(--accent-weak);
}
.builder-screen-row.is-dragging {
  opacity: 0.45;
}
.builder-screen-row[data-drop-state="before"],
.builder-template-card[data-drop-state="before"] {
  box-shadow: 0 -2px 0 var(--accent);
}
.builder-screen-row[data-drop-state="after"],
.builder-template-card[data-drop-state="after"] {
  box-shadow: 0 2px 0 var(--accent);
}

/* 模板卡片多选 / 拖拽 / 拖入保存高亮 */
.builder-template-card.is-selected {
  background: var(--accent-weak);
  border-color: rgba(99, 102, 241, 0.5);
}
.builder-template-card.is-dragging {
  opacity: 0.5;
}
.builder-template-group.is-drop-save {
  outline: 2px dashed var(--accent-hover);
  outline-offset: 2px;
  border-radius: var(--radius-s);
  background: var(--accent-weak);
}
.builder-template-group.is-drop-save .builder-palette-title {
  color: var(--accent-text);
}

/* 图层树拖拽 */
.builder-tree-row.is-dragging {
  opacity: 0.4;
}
.builder-tree-row[data-drop-state="before"]::after,
.builder-tree-row[data-drop-state="after"]::after {
  content: "";
  position: absolute;
  left: 4px;
  right: 4px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent);
  z-index: 3;
}
.builder-tree-row[data-drop-state="before"]::after {
  top: -1px;
}
.builder-tree-row[data-drop-state="after"]::after {
  bottom: -1px;
}
.builder-tree-row[data-drop-state="into"] {
  background: var(--accent-weak);
  box-shadow: inset 0 0 0 1.5px var(--accent);
  color: var(--text);
}

/* 字体字段（v1.2，§17.3） */
.builder-font-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.builder-font-row {
  display: flex;
  align-items: center;
  gap: 6px;
}
.builder-font-row .select {
  flex: 1;
  min-width: 0;
}
.builder-font-upload {
  flex: none;
}
.builder-font-path {
  font-size: 11.5px;
}
.builder-font-preview-row {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-s);
  background: var(--bg-inset);
}
.builder-font-preview {
  font-size: 15px;
  line-height: 1.5;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.builder-font-hint {
  margin-top: 0;
}
.builder-font-file {
  display: none;
}
.builder-font-assets {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}
.builder-font-asset {
  display: flex;
  align-items: center;
  gap: 4px;
  max-width: 100%;
  padding: 2px 6px 2px 3px;
  border: 1px solid var(--border);
  border-radius: var(--radius-s);
  background: var(--bg-elev);
  color: var(--text-dim);
  font-size: 10.5px;
  cursor: pointer;
  transition:
    border-color 0.12s var(--ease),
    background 0.12s var(--ease);
}
.builder-font-asset:hover {
  border-color: var(--border-strong);
  color: var(--text);
}
.builder-font-asset.is-active {
  border-color: var(--accent);
  background: var(--accent-weak);
  color: var(--accent-text);
}
.builder-font-asset img {
  width: 16px;
  height: 12px;
  object-fit: cover;
  border-radius: 2px;
  flex: none;
}

/* 拖拽复制 HUD 提示 */
.builder-drag-copy-hint {
  color: var(--warn);
}

/* ==========================================================================
   v1.3：高级代码块（raw 控件）与同步重建
   ========================================================================== */

/* 控件库「高级」分组：默认折叠，避免干扰普通用户 */
.builder-advanced-group {
  margin-top: 6px;
  padding-top: 5px;
  border-top: 1px dashed var(--border);
}
.builder-advanced-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
}
.builder-advanced-toggle {
  height: 24px;
  padding: 0 4px;
  gap: 4px;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-faint);
}
.builder-advanced-toggle:hover {
  color: var(--text);
}
.builder-advanced-caret {
  display: inline-block;
  font-size: 10px;
  line-height: 1;
  transition: transform 0.12s var(--ease);
}
.builder-advanced-caret.is-open {
  transform: rotate(90deg);
}
.builder-advanced-hint {
  padding: 3px 4px 7px;
  font-size: 10px;
  line-height: 1.55;
  color: var(--text-faint);
}
.builder-palette-item.is-advanced {
  border-color: rgba(167, 139, 250, 0.42);
  background: rgba(139, 92, 246, 0.08);
}
.builder-palette-item.is-advanced:hover {
  border-color: rgba(167, 139, 250, 0.7);
  background: rgba(139, 92, 246, 0.14);
}
.builder-palette-badge-advanced {
  color: #c4b5fd;
  opacity: 1;
  font-weight: 700;
}
html[data-theme="light"] .builder-palette-badge-advanced {
  color: #6d28d9;
}
html[data-theme="light"] .builder-palette-item.is-advanced {
  background: rgba(139, 92, 246, 0.07);
}

/* 画布中的 raw 占位卡片（designMode 由 screen-render 内联样式，浅色主题覆盖） */
.builder-artboard .er-widget.er-raw {
  border-radius: 6px;
}
html[data-theme="light"] .builder-artboard .er-raw {
  color: #5b21b6 !important;
  background: rgba(139, 92, 246, 0.1) !important;
  border-color: rgba(139, 92, 246, 0.5) !important;
  box-shadow: inset 3px 0 0 #8b5cf6 !important;
}

/* 属性面板：raw 提示 + code textarea */
.builder-raw-notice {
  display: flex;
  gap: 8px;
  margin: 0 0 4px;
  padding: 9px 10px;
  border: 1px solid rgba(167, 139, 250, 0.4);
  border-radius: var(--radius-s);
  background: rgba(139, 92, 246, 0.1);
  color: var(--text-dim);
}
.builder-raw-notice svg {
  flex: none;
  margin-top: 1px;
  color: #a78bfa;
}
.builder-raw-notice-title {
  font-size: 11.5px;
  font-weight: 700;
  color: var(--accent-text);
  margin-bottom: 2px;
}
html[data-theme="light"] .builder-raw-notice {
  background: rgba(139, 92, 246, 0.08);
}
html[data-theme="light"] .builder-raw-notice-title {
  color: #5b21b6;
}
.builder-code-field {
  min-height: 110px;
  font-family: var(--font-code);
  font-size: 11.5px;
  line-height: 1.65;
  white-space: pre;
  tab-size: 4;
}

/* ---------------------------- 窄屏适配 ---------------------------- */

@media (max-width: 1500px) {
  .builder-right {
    flex-basis: 320px;
    width: 320px;
  }
  .builder-toolbar-name {
    max-width: 100px;
  }
  .builder-hud-hint {
    display: none;
  }
}

@media (max-width: 1320px) {
  .builder-right {
    flex-basis: 300px;
    width: 300px;
  }
  .builder-toggle {
    padding: 0 6px;
    font-size: 11px;
  }
  .builder-toolbar-info .chip:not(.builder-size-chip) {
    display: none;
  }
}

@media (max-width: 1150px) {
  .builder-right {
    flex-basis: 280px;
    width: 280px;
  }
  .builder-toolbar-group .builder-toggle:nth-child(n + 4) {
    display: none;
  }
}

/* ---------------------------- 浅色主题微调 ---------------------------- */

html[data-theme="light"] .builder-palette-item:hover {
  box-shadow: 0 1px 3px rgba(23, 37, 68, 0.08);
}
html[data-theme="light"] .builder-selection {
  box-shadow: 0 0 0 1px rgba(85, 88, 232, 0.15);
}
html[data-theme="light"] .builder-handle {
  background: #fff;
}
html[data-theme="light"] .builder-toolbar-icon {
  background: var(--accent-weak);
}