:root {
  --bg: #f6f1e7;
  --panel: #fffaf0;
  --line: #8c6b4f;
  --soft: #d7c6af;
  --text: #4f3c2d;
  --accent: #b88b5a;
  --fill: #8fb7ff;
  --empty: #efe6d7;
  --danger: #d86c6c;
  --ok: #5d936c;
  --highlight: #5d936c;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
}

body.dag-batch-global-bar-active {
  padding-top: 52px;
}

.saved-dag-batch-global-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 2500;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  background: rgba(251, 246, 237, 0.98);
  border-bottom: 1px solid var(--soft);
  box-shadow: 0 1px 0 rgba(140, 107, 79, 0.12);
  padding: 8px 16px 10px;
  box-sizing: border-box;
}

.saved-dag-batch-global-bar[hidden] {
  display: none !important;
}

.saved-dag-batch-global-progress {
  width: 100%;
  max-width: 100%;
}

.saved-dag-batch-global-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 6px;
  font-size: 12px;
  color: var(--text);
}

.saved-dag-batch-global-title {
  font-weight: 600;
  letter-spacing: 0.02em;
}

.saved-dag-batch-global-count {
  font-variant-numeric: tabular-nums;
  color: var(--accent);
  font-weight: 600;
}

.saved-dag-batch-global-track {
  height: 8px;
  border-radius: 999px;
  background: rgba(216, 108, 108, 0.15);
  overflow: hidden;
}

.saved-dag-batch-global-fill {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #c75a5a, #d86c6c);
  transition: width 0.2s ease-out;
  min-width: 0;
}

.app {
  display: grid;
  grid-template-columns: 380px 1fr;
  min-height: 100vh;
}

.sidebar {
  padding: 20px;
  border-right: 1px solid var(--soft);
  background: #fbf6ed;
  overflow: auto;
  max-height: 100vh;
}

.main {
  padding: 20px;
  overflow: auto;
  max-height: 100vh;
}

h1, h2, h3 { margin: 0 0 10px; }
h1 { font-size: 22px; }
h2 { font-size: 16px; margin-top: 16px; }
h3 { font-size: 14px; margin-top: 12px; }
p { line-height: 1.5; margin: 8px 0; }

.card {
  background: var(--panel);
  border: 1px solid var(--soft);
  border-radius: 12px;
  padding: 14px;
  margin-bottom: 14px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
  margin: 8px 0;
}

button, select, input {
  font: inherit;
}

button {
  border: 1px solid var(--soft);
  background: white;
  color: var(--text);
  padding: 8px 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: 0.15s ease;
  font-size: 13px;
}

button:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
}

button.primary {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

button.danger {
  background: white;
  color: var(--danger);
  border-color: var(--danger);
}

button.danger:hover {
  background: var(--danger);
  color: white;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

label {
  display: block;
  font-size: 12px;
  margin-bottom: 4px;
  opacity: 0.85;
}

.field { margin-bottom: 12px; }

.field input[type="radio"] {
  width: auto;
  margin: 0;
}

#customSizePanel input {
  width: 100%;
}

.field input, .field select {
  width: 100%;
  padding: 6px 10px;
  border: 1px solid var(--soft);
  border-radius: 6px;
  background: white;
}

.tiny {
  font-size: 11px;
  opacity: 0.72;
  line-height: 1.4;
}

.pill {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 3px 8px;
  border: 1px solid var(--soft);
  background: white;
  font-size: 11px;
  margin-right: 4px;
}

/* 步骤导航 */
.step-nav {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.step-item {
  padding: 10px 12px;
  border-radius: 8px;
  background: white;
  border: 1px solid var(--soft);
  font-size: 13px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.step-item:hover {
  border-color: var(--accent);
}

.step-item.active {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

/* 步骤面板 */
.step-panel {
  display: none;
}

.step-panel.active {
  display: block;
}

.main-panel {
  display: none;
}

.main-panel.active {
  display: block;
}

/* Canvas 基础样式 */
canvas {
  background: #fffdf7;
  border: 1px solid var(--soft);
  border-radius: 12px;
  image-rendering: pixelated;
  touch-action: none;
}

/* 非全屏模式下的 canvas */
.main-panel canvas:not(.canvas-fill-container canvas) {
  width: 100%;
  max-width: 640px;
}

/* Canvas 缩放控制 - 独立覆盖层样式 */
#zoomControls {
  z-index: 10000 !important;
  pointer-events: auto !important;
  user-select: none;
}

/* Canvas 全屏填充布局 - 仅当面板激活时应用 */
.canvas-fill-panel {
  display: none; /* 默认隐藏，与 .main-panel 一致 */
  flex-direction: column;
  height: calc(100vh - 40px);
  width: 100%;
  padding: 0 !important;
  overflow: hidden;
}

/* 只有当 canvas-fill-panel 同时有 active 类时才显示 */
.canvas-fill-panel.active {
  display: flex !important;
}

#zoomControls button {
  width: 36px;
  height: 36px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: bold;
  border-radius: 8px;
  background: white;
  border: 1px solid var(--soft);
  color: var(--text);
  cursor: pointer;
  transition: all 0.15s ease;
  pointer-events: auto !important;
  -webkit-appearance: none;
  appearance: none;
  line-height: 1;
}

#zoomControls button:hover {
  background: var(--panel);
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 3px 10px rgba(0,0,0,0.15);
}

#zoomControls button:active {
  transform: translateY(0);
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

/* Canvas 全屏填充布局 - 子元素样式 */
.canvas-fill-header {
  flex-shrink: 0;
  padding: 12px 20px;
  margin-bottom: 0;
  border-bottom: 1px solid var(--soft);
  background: var(--panel);
}

.canvas-fill-wrapper {
  position: relative;
  flex: 1;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.canvas-fill-container {
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px;
  overflow: hidden;
  background: var(--bg);
  width: 100%;
}

/* Canvas 填满整个容器 */
.canvas-fill-container canvas {
  width: 100%;
  height: 100%;
  max-width: none;
  max-height: none;
  object-fit: contain;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.panel-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

/* 指标网格 */
.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.metric {
  background: white;
  border: 1px solid var(--soft);
  border-radius: 8px;
  padding: 8px;
}

.metric .k {
  font-size: 10px;
  opacity: 0.7;
  margin-bottom: 2px;
}

.metric .v {
  font-size: 16px;
  font-weight: 700;
}

/* 变体网格 */
.variants-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.variant-item {
  border: 2px solid var(--soft);
  border-radius: 12px;
  padding: 8px;
  background: white;
  cursor: pointer;
  transition: all 0.15s ease;
}

.variant-item:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.variant-item.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(184, 139, 90, 0.2);
}

/* 不可解关卡样式 */
.variant-item.unsolvable {
  border-color: var(--danger);
  background: #f5f0e8;
}

.variant-item.unsolvable:hover {
  border-color: #c44;
  box-shadow: 0 0 0 3px rgba(216, 108, 108, 0.2);
}

.variant-item canvas {
  width: 100%;
  border-radius: 8px;
}

.variant-item .info {
  font-size: 11px;
  padding: 6px 4px 2px;
  display: flex;
  justify-content: space-between;
}

/* Saved_level 侧栏分段布局 */
.saved-level-sidebar-section {
  margin-top: 10px;
}

.saved-level-sidebar-section:first-of-type,
.card > .saved-level-sidebar-section:first-child {
  margin-top: 0;
}

.saved-level-sidebar-actions-row {
  margin: 0;
  gap: 8px;
  flex-wrap: wrap;
}

.saved-level-sidebar-actions-row button {
  flex: 1 1 auto;
  min-width: 0;
}

.saved-level-sidebar-rule {
  border: none;
  border-top: 1px solid var(--soft);
  margin: 14px 0 0;
}

.saved-level-sidebar-fullbtn {
  display: block;
  width: 100%;
  box-sizing: border-box;
}

.saved-level-unsolvable-toggle {
  display: block;
  width: 100%;
  box-sizing: border-box;
  padding: 8px 12px;
  font-size: 13px;
  cursor: pointer;
  border-radius: 8px;
  border: 1px solid rgba(216, 108, 108, 0.45);
  background: rgba(216, 108, 108, 0.14);
  color: #7a2929;
}

.saved-level-unsolvable-toggle:hover {
  background: rgba(216, 108, 108, 0.22);
  border-color: rgba(216, 108, 108, 0.55);
}

.saved-level-checkbox-label {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  line-height: 1.4;
  margin: 0;
  text-align: center;
}

.saved-level-checkbox-label input {
  margin: 0;
  flex-shrink: 0;
}

.saved-level-dag-filtered-hint {
  max-width: 100%;
  text-align: center;
  line-height: 1.4;
}

.saved-level-sidebar-status {
  margin-top: 10px;
}

.saved-level-sidebar-pager {
  margin-top: 12px;
}

.saved-levels-grid {
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}

.saved-level-item .info {
  flex-direction: column;
  gap: 4px;
  min-height: 48px;
}

.saved-level-item .info span:first-child {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.saved-level-item .saved-level-remark {
  margin-top: 4px;
  color: var(--accent);
  opacity: 0.9;
  line-height: 1.35;
  overflow: hidden;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  word-break: break-word;
}

.saved-level-item .saved-level-remark:empty {
  display: none;
}

/* Saved_level 卡片内：单卡 DAG 分析进度条（复用分区填充条样式） */
.saved-level-item .saved-solo-dag-progress.partition-fill-progress {
  margin-top: 6px;
  width: 100%;
}

/* DAG 文案配色 */
.saved-level-item .saved-dag-none {
  color: #3d3d3d;
  font-weight: 600;
}

.saved-level-item .saved-dag-ok {
  color: #14532d;
  font-weight: 600;
}

.saved-level-item .saved-dag-bad,
.saved-level-item .saved-dag-error {
  color: #b42318;
  font-weight: 600;
}

.saved-batch-dag-btn {
  background: #dff5e8;
  border: 1px solid #9dcbaf;
  color: #1f4d2e;
}

.saved-batch-dag-btn:hover:not(:disabled) {
  background: #c8edd8;
  border-color: #82b896;
  color: #153a24;
}

.saved-batch-dag-btn:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.saved-level-item .saved-card-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
  margin-top: 8px;
}

.saved-level-item .saved-card-top-row {
  display: flex;
  gap: 8px;
  width: 100%;
}

.saved-level-item .saved-card-top-row .saved-preview-btn,
.saved-level-item .saved-card-top-row .saved-solo-dag-btn {
  flex: 1;
  min-width: 0;
}

.saved-solo-dag-btn {
  background: #dff5e8;
  border: 1px solid #9dcbaf;
  color: #1f4d2e;
  padding: 6px 8px;
  font-size: 12px;
  border-radius: 8px;
  cursor: pointer;
}

.saved-solo-dag-btn:hover:not(:disabled) {
  background: #c8edd8;
  border-color: #82b896;
}

.saved-solo-dag-btn:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.saved-level-item .saved-card-actions .saved-edit-btn,
.saved-level-item .saved-card-actions .saved-delete-btn {
  width: 100%;
  margin-top: 0;
}

.saved-edit-btn,
.saved-delete-btn {
  width: 100%;
  margin-top: 8px;
}

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  color: var(--text);
  opacity: 0.65;
}

/* 关卡库列表 */
.library-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.library-item {
  border: 2px solid var(--soft);
  border-radius: 12px;
  padding: 12px;
  background: white;
  cursor: pointer;
  transition: all 0.15s ease;
}

.library-item:hover {
  border-color: var(--accent);
}

.library-item.selected {
  border-color: var(--ok);
  box-shadow: 0 0 0 3px rgba(93, 147, 108, 0.2);
}

.library-item .checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  font-weight: 600;
}

.library-item .metrics {
  font-size: 11px;
  color: var(--text);
  opacity: 0.8;
}

/* ============ 关卡选中与收藏样式 ============ */

/* 选中提示 */
.selected-hint {
  background: linear-gradient(135deg, #e8f5e9 0%, #c8e6c9 100%);
  border-color: #4caf50;
  color: #2e7d32;
}

/* 难度计算中的关卡项 - 可选中 */
#difficultyVariantsGrid .variant-item {
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
}

#difficultyVariantsGrid .variant-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* 选中状态 - 加粗边缘+高光 */
#difficultyVariantsGrid .variant-item.selected {
  border: 4px solid var(--accent);
  box-shadow: 0 0 0 4px rgba(184, 139, 90, 0.3), 0 8px 24px rgba(184, 139, 90, 0.2);
  transform: scale(1.02);
}

#difficultyVariantsGrid .variant-item.selected::after {
  content: '✓';
  position: absolute;
  top: -8px;
  right: -8px;
  width: 26px;
  height: 26px;
  background: var(--accent);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

/* 关卡库中的项目 */
.library-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
  min-height: 200px;
}

.library-item {
  border: 2px solid var(--soft);
  border-radius: 12px;
  padding: 10px;
  background: white;
  transition: all 0.15s ease;
  position: relative;
}

.library-item:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.library-item .remove-btn {
  position: absolute;
  top: -8px;
  right: -8px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--danger);
  color: white;
  border: none;
  cursor: pointer;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.15s ease;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

.library-item:hover .remove-btn {
  opacity: 1;
}

.library-item .remove-btn:hover {
  background: #c44;
  transform: scale(1.1);
}

.library-item .order-num {
  position: absolute;
  top: 6px;
  left: 6px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent);
  color: white;
  font-size: 11px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

/* 响应式 */
@media (max-width: 1100px) {
  .app { grid-template-columns: 1fr; }
  .sidebar { border-right: 0; border-bottom: 1px solid var(--soft); max-height: none; }
  .main { max-height: none; }
  .variants-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .variants-grid { grid-template-columns: 1fr; }
  .library-list { grid-template-columns: 1fr; }
  .metric-grid { grid-template-columns: repeat(3, 1fr); }
}

/* 放大展示模态框 */
.modal {
  display: none;
  position: fixed;
  z-index: 20000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-content {
  background-color: var(--panel);
  margin: 1% auto;
  border-radius: 16px;
  width: 98%;
  max-width: 1600px;
  max-height: 94vh;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  animation: slideIn 0.3s ease;
  display: flex;
  flex-direction: column;
}

@keyframes slideIn {
  from { transform: translateY(-30px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--soft);
}

.modal-header h2 {
  margin: 0;
  font-size: 18px;
}

.modal-close {
  font-size: 28px;
  font-weight: 300;
  color: var(--text);
  cursor: pointer;
  line-height: 1;
  padding: 0 4px;
  transition: color 0.15s ease;
}

.modal-close:hover {
  color: var(--danger);
}

#zoomModal .zoom-modal-header {
  gap: 12px;
  align-items: flex-start;
  flex-wrap: wrap;
}

#zoomModal .zoom-modal-header h2 {
  flex: 0 0 auto;
  padding-top: 4px;
}

#zoomModal .zoom-modal-header .modal-close {
  flex: 0 0 auto;
  margin-left: auto;
  align-self: flex-start;
}

#zoomModal .zoom-modal-notes-wrap {
  flex: 1 1 220px;
  min-width: 160px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin: 0;
}

#zoomModal .zoom-modal-notes-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text);
  opacity: 0.75;
}

#zoomModal .zoom-modal-notes-field {
  width: 100%;
  min-height: 36px;
  max-height: 120px;
  resize: vertical;
  padding: 8px 10px;
  font-size: 13px;
  line-height: 1.35;
  font-family: inherit;
  color: var(--text);
  background: var(--panel, #faf8f3);
  border: 1px solid var(--soft);
  border-radius: 8px;
  box-sizing: border-box;
}

#zoomModal .zoom-modal-notes-field:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

#zoomModal .zoom-modal-notes-field.zoom-modal-notes--readonly {
  background: #f3f1eb;
  color: var(--text);
  cursor: default;
}

.modal-body {
  padding: 20px;
  overflow-y: auto; /* 允许垂直滚动 */
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  max-height: calc(90vh - 100px); /* 限制最大高度，留出标题栏空间 */
  scrollbar-width: thin;
  scrollbar-color: var(--soft) transparent;
}

/* 自定义滚动条样式 */
.modal-body::-webkit-scrollbar {
  width: 8px;
}

.modal-body::-webkit-scrollbar-track {
  background: transparent;
  border-radius: 4px;
}

.modal-body::-webkit-scrollbar-thumb {
  background: var(--soft);
  border-radius: 4px;
}

.modal-body::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}

/* ============ 放大预览新布局样式 ============ */

.zoom-modal-layout {
  display: flex !important;
  flex-direction: column;
  gap: 16px;
  width: 100%;
  padding: 16px 20px 20px;
  align-items: stretch;
  overflow: hidden;
  height: calc(94vh - 60px);
  max-height: calc(94vh - 60px);
}

.zoom-main-stage {
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: white;
  border: 1px solid var(--soft);
  border-radius: 16px;
  padding: 12px;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.5);
  overflow: hidden;
}

/* 缩放控制栏 */
.zoom-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 6px 8px;
  background: var(--bg);
  border-radius: 8px;
  flex-wrap: wrap;
}

.zoom-control-btn {
  background: white;
  border: 1px solid var(--soft);
  border-radius: 6px;
  padding: 6px 12px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  color: var(--text);
  min-width: 32px;
  text-align: center;
}

.zoom-control-btn:hover {
  border-color: var(--accent);
  background: var(--panel);
}

.zoom-control-btn.reset {
  font-size: 12px;
  font-weight: 500;
  padding: 6px 10px;
}

/* 底纹填充「编辑完成」/ 底纹删除「退出」等高能见度收尾按钮 */
#zoomModal .zoom-control-btn.zoom-texture-exit-btn {
  background: linear-gradient(180deg, #ff7043 0%, #e53935 100%);
  color: #fff;
  border-color: #c62828;
  box-shadow: 0 1px 4px rgba(198, 40, 40, 0.35);
}

#zoomModal .zoom-control-btn.zoom-texture-exit-btn:hover:not(:disabled) {
  background: linear-gradient(180deg, #ff8a65 0%, #f44336 100%);
  border-color: #b71c1c;
  color: #fff;
}

#zoomModal .zoom-control-btn.zoom-texture-exit-btn:disabled {
  opacity: 0.55;
}

#zoomModalZoomLevel {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  min-width: 50px;
  text-align: center;
}

.zoom-toolbar-stack {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 8px;
}

.zoom-editor-toolbar {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: center;
}

.zoom-editor-toolbar--stack {
  flex-direction: column;
  align-items: stretch;
  flex-wrap: nowrap;
  gap: 10px;
  width: 100%;
}

.zoom-toolbar-block--arrows {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.zoom-toolbar-row--arrows-main {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 6px;
}

.zoom-toolbar-row--arrows-delete {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
}

.zoom-toolbar-row--arrows-delete .zoom-control-btn {
  width: 100%;
}

.zoom-toolbar-divider {
  border: none;
  border-top: 1px solid rgba(0, 0, 0, 0.12);
  margin: 2px 0;
  width: 100%;
}

.zoom-toolbar-block--texture {
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: stretch;
}

.zoom-toolbar-btn-full {
  width: 100%;
  box-sizing: border-box;
}

.zoom-file-manage-panel {
  background: #fff;
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 8px;
  padding: 10px 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.zoom-file-export-actions {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.zoom-file-export-actions .zoom-control-btn {
  width: 100%;
  box-sizing: border-box;
}

.zoom-saved-filename-wrap {
  flex-direction: column;
  gap: 4px;
  width: 100%;
  margin-top: 4px;
}

.zoom-saved-filename-label {
  font-size: 0.75rem;
  color: var(--muted, #666);
}

.zoom-saved-filename-input {
  width: 100%;
  box-sizing: border-box;
  padding: 6px 8px;
  border: 1px solid var(--border, #ccc);
  border-radius: 6px;
  font-size: 0.8rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, monospace;
}

.zoom-partition-tools {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.partition-mode-buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}

.partition-edit-action-buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}

.partition-mode-buttons .zoom-control-btn.active,
.zoom-partition-list-item.selected {
  border-color: var(--accent);
  background: #fff0dc;
  color: var(--text);
  box-shadow: inset 0 0 0 1px rgba(184, 139, 90, 0.35);
}

.partition-create-btn {
  background: #6b8e6b;
  color: white;
  border-color: #6b8e6b;
}

.partition-create-btn:hover {
  background: #5a7a5a;
}

.partition-edit-btn {
  background: #fff8ed;
}

.partition-save-btn {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.partition-cancel-btn {
  color: var(--danger);
  border-color: var(--danger);
}

.partition-fill-params,
.partition-fill-count {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 11px;
  color: var(--text);
  text-align: left;
}

.partition-fill-count input {
  width: 100%;
  border: 1px solid var(--soft);
  border-radius: 8px;
  padding: 6px 8px;
  background: white;
  color: var(--text);
}

.partition-fill-param-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 8px;
  border: 1px solid rgba(140, 107, 79, 0.16);
  border-radius: 10px;
  background: rgba(255, 248, 237, 0.5);
}

.partition-fill-param-group strong {
  font-size: 11px;
}

.partition-fill-param-group label {
  display: grid;
  grid-template-columns: 56px 1fr 26px;
  align-items: center;
  gap: 6px;
}

.partition-fill-param-group input[type="range"] {
  width: 100%;
}

.partition-fill-param-group em {
  font-style: normal;
  text-align: right;
  color: var(--muted);
}

.partition-fill-btn {
  background: #6b6fa8;
  color: white;
  border-color: #6b6fa8;
}

.partition-fill-btn:hover {
  background: #595d91;
}

.partition-fill-progress {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 8px;
  border: 1px solid rgba(107, 111, 168, 0.22);
  border-radius: 10px;
  background: rgba(107, 111, 168, 0.08);
  color: var(--text);
  font-size: 11px;
}

.partition-fill-progress-text {
  display: flex;
  justify-content: space-between;
  gap: 8px;
}

.partition-fill-progress-bar {
  position: relative;
  height: 6px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(107, 111, 168, 0.18);
}

.partition-fill-progress-bar span {
  position: absolute;
  top: 0;
  bottom: 0;
  left: -45%;
  width: 45%;
  border-radius: inherit;
  background: linear-gradient(90deg, transparent, #6b6fa8, transparent);
  animation: partition-fill-progress-sweep 1.15s ease-in-out infinite;
}

@keyframes partition-fill-progress-sweep {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(325%);
  }
}

.zoom-panel-toggle.global-fill-toggle {
  padding: 12px 14px;
  font-size: 14px;
}

.global-fill-hint {
  margin: 0 0 10px;
  opacity: 0.85;
}

.global-fill-progress {
  margin-top: 12px;
}

.global-fill-progress-bar {
  position: relative;
  height: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(107, 111, 168, 0.18);
}

.global-fill-progress-bar span {
  display: block;
  height: 100%;
  width: 0%;
  max-width: 100%;
  border-radius: inherit;
  background: var(--accent, #6b6fa8);
  transition: width 0.2s ease-out;
}

.zoom-panels--floating #globalFillPanel.open {
  width: min(420px, 54%);
}

.global-fill-submit-btn {
  width: 100%;
  margin-top: 10px;
  box-sizing: border-box;
}

.zoom-stage-shell {
  position: relative;
  background: var(--bg);
  border: 1px solid rgba(140, 107, 79, 0.12);
  border-radius: 16px;
  padding: 12px;
  flex: 1 1 auto;
  min-height: 0;
  min-width: 0;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.7);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* 画布视口 */
.zoom-scroll-container {
  overflow: hidden;
  position: relative;
  flex: 1 1 auto;
  min-height: 0;
  width: 100%;
  background: transparent;
  border-radius: 12px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: default;
}

.zoom-canvas-viewport {
  display: contents;
}

.zoom-scroll-container::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

.zoom-scroll-container::-webkit-scrollbar-track {
  background: transparent;
  border-radius: 4px;
}

.zoom-scroll-container::-webkit-scrollbar-thumb {
  background: var(--soft);
  border-radius: 4px;
}

.zoom-scroll-container::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}

.zoom-scroll-container canvas {
  transition: none;
}

.zoom-scroll-container.is-panning,
.zoom-scroll-container.is-panning canvas {
  cursor: grabbing;
}

.zoom-scroll-container.is-mask-fill-mode {
  background: #b2dfdb;
}

.zoom-scroll-container.is-mask-delete-mode {
  background: #fceef2;
}

.zoom-preview-wrapper {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 16px;
  width: 100%;
  height: 100%;
  min-height: 0;
  align-items: stretch;
}

.zoom-preview-wrapper canvas {
  max-width: 100%;
  /* 关键：保持正方形比例，不设置height: auto避免变形 */
  aspect-ratio: 1 / 1;
  object-fit: contain;
}

.zoom-side-section--rail-tools {
  background: #fff8ed;
  border-radius: 8px;
  padding: 8px 6px 10px;
  border: 1px solid rgba(184, 139, 90, 0.18);
}

/* 右侧功能栏 */
.zoom-side-rail {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 0;
  overflow-y: auto;
  padding: 2px 2px 4px;
  scrollbar-width: thin;
  scrollbar-color: var(--soft) transparent;
}

.zoom-side-rail::-webkit-scrollbar {
  width: 6px;
}

.zoom-side-rail::-webkit-scrollbar-track {
  background: transparent;
  border-radius: 3px;
}

.zoom-side-rail::-webkit-scrollbar-thumb {
  background: var(--soft);
  border-radius: 3px;
}

.zoom-side-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 12px 14px;
  background: white;
  border: 1px solid var(--soft);
  border-radius: 14px;
  box-shadow: 0 6px 18px rgba(140, 107, 79, 0.06);
}

.zoom-partition-list-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.zoom-partition-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 220px;
  overflow-y: auto;
}

.zoom-partition-list-empty {
  padding: 10px;
  border: 1px dashed var(--soft);
  border-radius: 8px;
  text-align: center;
  color: var(--text);
  opacity: 0.68;
  font-size: 12px;
}

.zoom-partition-list-item {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  border: 1px solid var(--soft);
  background: white;
  color: var(--text);
  border-radius: 8px;
  padding: 8px 10px;
  text-align: left;
}

.zoom-partition-color-dot {
  width: 12px;
  height: 12px;
  border-radius: 999px;
  flex-shrink: 0;
  border: 1px solid rgba(79, 60, 45, 0.18);
}

.zoom-partition-list-label {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.zoom-partition-list-meta {
  font-size: 11px;
  opacity: 0.62;
}

.zoom-partition-status {
  min-height: 18px;
  color: var(--accent);
  text-align: center;
}

.modal.is-creating-arrow .modal-content {
  background-color: #fff1f1;
}

.modal.is-creating-arrow .zoom-main-stage,
.modal.is-creating-arrow .zoom-side-section {
  background: #fff7f7;
  border-color: rgba(216, 108, 108, 0.28);
}

.modal.is-creating-arrow .zoom-stage-shell,
.modal.is-creating-arrow .zoom-controls {
  background: rgba(216, 108, 108, 0.08);
  border-color: rgba(216, 108, 108, 0.18);
}

.modal.is-creating-partition .modal-content {
  background-color: #eef4ff;
}

.modal.is-creating-partition .zoom-stage-shell,
.modal.is-creating-partition .zoom-side-section {
  background: #f7faff;
  border-color: rgba(79, 124, 255, 0.24);
}

#zoomCanvas {
  display: block;
  max-width: none;
  max-height: none;
  flex-shrink: 0;
  transform-origin: center center;
  will-change: transform;
}

.zoom-nav {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}

.zoom-nav-btn {
  background: white;
  color: var(--accent);
  border: 1px solid rgba(184, 139, 90, 0.28);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  min-width: 108px;
  box-shadow: 0 6px 18px rgba(140, 107, 79, 0.08);
}

.zoom-nav-btn:hover {
  background: #fff8ef;
  border-color: var(--accent);
  transform: translateY(-1px);
}

.zoom-nav-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}

.zoom-stage-meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: center;
  justify-content: center;
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(255, 248, 239, 0.7);
  border: 1px solid rgba(140, 107, 79, 0.08);
  box-shadow: none;
}

.zoom-panel-toggle {
  background: var(--accent);
  color: white;
  border: none;
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  width: 100%;
  text-align: center;
  box-shadow: 0 10px 24px rgba(140, 107, 79, 0.12);
}

.zoom-panel-toggle:hover {
  background: #a67a4a;
  transform: translateY(-1px);
}

.zoom-panel-toggle:disabled {
  background: var(--soft);
  color: var(--text);
  cursor: not-allowed;
  transform: none;
}

.zoom-panel-toggle.active {
  box-shadow: inset 0 0 0 2px rgba(255,255,255,0.45), 0 12px 28px rgba(140, 107, 79, 0.18);
  transform: translateY(-1px);
}

.zoom-panel-toggle.loading {
  animation: pulse 1.5s infinite;
}

.zoom-panel-toggle.dependency-btn {
  background: #6b8e6b;
}

.zoom-panel-toggle.dependency-btn:hover {
  background: #5a7a5a;
}

.zoom-panel-toggle.dag-btn {
  background: #6b6fa8;
}

.zoom-panel-toggle.dag-btn:hover {
  background: #595d91;
}

.zoom-panel-toggle.reference-simulator-btn {
  background: #8a6bb0;
}

.zoom-panel-toggle.reference-simulator-btn:hover {
  background: #74579a;
}

.zoom-panel-toggle.reference-simulator-btn.reference-simulator-disabled {
  background: var(--soft);
  color: var(--text);
  cursor: not-allowed;
  transform: none;
}

.zoom-panel-toggle.reference-simulator-btn.reference-simulator-disabled:hover {
  background: var(--soft);
  transform: none;
}

.zoom-panel-toggle.reference-simulator-btn.reference-simulator-disabled.loading {
  animation: none;
}

.zoom-bottom-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
  padding: 12px 14px;
}

.zoom-panels {
  width: 100%;
}

/* 悬浮于画布右上角的面板层 */
.zoom-panels--floating {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 5;
}

.zoom-panel {
  position: absolute;
  top: 16px;
  left: 16px;
  width: min(440px, 52%);
  background: white;
  border: 1px solid var(--soft);
  border-radius: 14px;
  padding: 0 16px;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  pointer-events: none;
  transform: translateY(-6px);
  transition: max-height 0.24s ease, opacity 0.2s ease, transform 0.2s ease, padding 0.2s ease;
}

.zoom-panel.open {
  display: flex;
  flex-direction: column;
  max-height: min(32vh, 360px);
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
  padding: 14px 16px;
}

.zoom-panels--floating .zoom-panel.open {
  max-height: min(620px, calc(100% - 32px));
  background: rgba(255, 255, 255, 0.97);
  box-shadow: 0 18px 48px rgba(140, 107, 79, 0.24);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.zoom-panels--floating .zoom-panel.open.minimized {
  width: fit-content;
  min-width: 260px;
  max-width: min(360px, 100%);
  max-height: 64px;
  padding: 10px 12px;
}

.zoom-panels--floating .zoom-panel.open.fullscreen {
  left: 16px !important;
  top: 16px !important;
  width: calc(100% - 32px);
  height: calc(100% - 32px);
  max-height: calc(100% - 32px);
  padding: 16px 18px;
  transform: none;
}

.zoom-panel.open.fullscreen .zoom-panel-content {
  display: block;
  min-height: 0;
  max-height: none;
  overflow: auto;
}

.zoom-panel.open.fullscreen .zoom-panel-header {
  cursor: default;
}

.zoom-panel.open.fullscreen .zoom-panel-header strong::after {
  content: '';
}

.zoom-panel.open.minimized .zoom-panel-header {
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: 0;
}

.zoom-panel.open.minimized .zoom-panel-content {
  display: none !important;
}

.zoom-panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding-bottom: 10px;
  margin-bottom: 10px;
  border-bottom: 1px solid var(--soft);
  cursor: move;
  user-select: none;
  touch-action: none;
}

.zoom-panel.is-dragging {
  transition: none;
  cursor: move;
}

.zoom-panel-header strong::after {
  content: ' · 拖拽移动';
  font-size: 11px;
  font-weight: 500;
  opacity: 0.45;
}

.zoom-panel-header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.zoom-panel-status {
  font-size: 12px;
  color: var(--text);
  opacity: 0.8;
  min-height: 18px;
  text-align: right;
}

.zoom-panel-close-btn,
.zoom-panel-minimize-btn,
.zoom-panel-fullscreen-btn {
  padding: 6px 12px;
  border-radius: 999px;
  background: white;
  border: 1px solid rgba(140, 107, 79, 0.2);
  color: var(--text);
  font-size: 12px;
  font-weight: 600;
  flex-shrink: 0;
}

.zoom-panel-close-btn:hover,
.zoom-panel-minimize-btn:hover,
.zoom-panel-fullscreen-btn:hover {
  background: #fff8ef;
}

.zoom-panel-content {
  flex: 1;
  overflow-y: auto;
  font-size: 12px;
  scrollbar-width: thin;
  scrollbar-color: var(--soft) transparent;
}

.zoom-panel-content::-webkit-scrollbar {
  width: 6px;
}

.zoom-panel-content::-webkit-scrollbar-track {
  background: transparent;
  border-radius: 3px;
}

.zoom-panel-content::-webkit-scrollbar-thumb {
  background: var(--soft);
  border-radius: 3px;
}

.zoom-panel-content::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}

.dag-graph-card {
  padding: 12px;
}

.dag-graph-svg-wrap {
  overflow: auto;
  border: 1px solid rgba(140, 107, 79, 0.12);
  border-radius: 12px;
  background: rgba(255, 253, 247, 0.88);
  margin: 10px 0 14px;
}

.dag-graph-svg {
  display: block;
  min-width: 100%;
}

.dag-degree-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

.dag-degree-table th,
.dag-degree-table td {
  border-bottom: 1px solid rgba(140, 107, 79, 0.12);
  padding: 8px 6px;
  text-align: left;
  vertical-align: top;
}

.dag-degree-table th {
  color: var(--accent);
  font-weight: 700;
}

.dag-sort-btn {
  appearance: none;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--accent);
  cursor: pointer;
  font: inherit;
  font-weight: 700;
  padding: 4px 6px;
}

.dag-sort-btn:hover,
.dag-sort-btn.active {
  background: rgba(184, 139, 90, 0.12);
}

.reference-sim-card {
  padding: 12px;
}

.reference-progress-card {
  padding: 14px;
}

.reference-progress-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  margin-bottom: 10px;
}

.reference-progress-header span {
  color: #74579a;
  font-size: 12px;
  font-weight: 700;
}

.reference-progress-bar {
  height: 12px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(184, 139, 90, 0.12);
}

.reference-progress-bar-fill {
  height: 100%;
  border-radius: inherit;
  background: #8a6bb0;
  transition: width 0.25s ease;
}

.reference-progress-message {
  margin-top: 10px;
  color: var(--text);
  line-height: 1.5;
}

.reference-progress-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: 12px;
}

.reference-progress-stats span {
  padding: 7px 8px;
  border-radius: 10px;
  background: rgba(184, 139, 90, 0.08);
  color: var(--text);
}

.reference-progress-hint {
  margin-top: 10px;
  font-size: 11px;
  color: var(--text);
  opacity: 0.68;
}

.reference-sim-header {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 12px;
}

.reference-sim-subtitle {
  margin-top: 4px;
  color: var(--text);
  opacity: 0.72;
  line-height: 1.5;
}

.reference-sim-score {
  min-width: 76px;
  padding: 10px 12px;
  border-radius: 14px;
  background: #f2ecfb;
  color: #74579a;
  text-align: center;
}

.reference-sim-score.is-bad {
  background: #ffebee;
  color: #b65050;
}

.reference-sim-score span {
  display: block;
  font-size: 24px;
  font-weight: 800;
  line-height: 1;
}

.reference-sim-score small {
  display: block;
  margin-top: 4px;
  font-size: 11px;
}

.reference-sim-warning {
  margin-bottom: 10px;
  padding: 8px 10px;
  border-radius: 10px;
  background: #fff7e8;
  color: #9a6b2f;
}

.reference-sim-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 12px;
}

.reference-sim-metric {
  padding: 8px 6px;
  border-radius: 10px;
  background: rgba(184, 139, 90, 0.08);
  text-align: center;
}

.reference-sim-metric span {
  display: block;
  font-size: 16px;
  font-weight: 700;
  color: var(--accent);
}

.reference-sim-metric small {
  display: block;
  margin-top: 3px;
  font-size: 10px;
  color: var(--text);
  opacity: 0.72;
}

.reference-sim-section {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid rgba(140, 107, 79, 0.12);
  line-height: 1.5;
}

.reference-sim-section ul {
  margin: 8px 0 0;
  padding-left: 18px;
}

.reference-sim-table {
  width: 100%;
  margin-top: 8px;
  border-collapse: collapse;
  font-size: 12px;
}

.reference-sim-table th,
.reference-sim-table td {
  padding: 7px 6px;
  border-bottom: 1px solid rgba(140, 107, 79, 0.12);
  text-align: left;
  vertical-align: top;
}

.reference-sim-table th {
  color: var(--accent);
  font-weight: 700;
}

#zoomCanvas {
  background: #fffdf7;
  border: 1px solid var(--soft);
  border-radius: 12px;
  /* 关键：保持像素完美，禁止拉伸 */
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

.zoom-info {
  font-size: 13px;
  color: var(--text);
  opacity: 0.8;
  text-align: center;
}

.zoom-editor-status {
  min-height: 20px;
  color: var(--accent);
  text-align: center;
  font-weight: 500;
}

body.zoom-modal-open {
  overflow: hidden;
}

body.zoom-modal-open #zoomBtnContainer {
  display: none !important;
}

/* 旧的导航按钮 - 已移至三栏布局中 */
.nav-btn {
  display: none;
}

.modal.active {
  display: block;
}

/* 响应式 */
@media (max-width: 1600px) {
  .modal-content {
    max-width: 98%;
    margin: 1% auto;
  }
}

/* 中等屏幕：侧栏收窄 */
@media (max-width: 1440px) {
  .zoom-preview-wrapper {
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: 14px;
  }
}

/* 窄屏回退：恢复旧的纵向堆叠，面板回到画布下方 */
@media (max-width: 1199px) {
  .zoom-modal-layout {
    height: auto;
    max-height: calc(94vh - 60px);
    overflow-y: auto;
  }

  .zoom-preview-wrapper {
    display: flex;
    flex-direction: column;
    gap: 14px;
    height: auto;
  }

  .zoom-stage-shell {
    flex: 0 0 auto;
    height: min(46vh, 520px);
  }

  .zoom-side-rail {
    overflow: visible;
    flex-direction: column;
    gap: 12px;
  }

  .zoom-bottom-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(200px, 1fr));
    gap: 12px;
    padding: 12px 14px;
  }

  .zoom-panels--floating {
    top: 12px;
    right: 12px;
    width: min(360px, 80%);
  }
}

@media (max-width: 900px) {
  .zoom-modal-layout {
    padding: 16px;
    gap: 12px;
  }

  .zoom-stage-shell {
    height: 38vh;
    padding: 12px;
  }

  .zoom-bottom-actions {
    grid-template-columns: 1fr;
  }

  .zoom-panel-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .zoom-panel-header-actions {
    width: 100%;
    justify-content: space-between;
  }
}

/* ============ 模拟计算区域样式 (新布局适配) ============ */

/* 隐藏旧布局中的 section，新布局中使用 zoom-column */
.simulator-section,
.dependency-section {
  display: none;
}

/* 在面板内容区域内部的结果样式 */
.zoom-panel-content .simulator-result,
.zoom-panel-content .dependency-result {
  padding: 0;
  background: transparent;
  border: none;
}

/* 旧的头部和按钮样式 - 仅在新布局外使用 */
.simulator-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.simulator-btn {
  display: none;
}

.simulator-status {
  display: none;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

.simulator-status {
  font-size: 12px;
  color: var(--text);
  opacity: 0.7;
}

.simulator-result {
  margin-top: 15px;
  padding: 15px;
  background: white;
  border-radius: 10px;
  border: 1px solid var(--soft);
}

/* 在列布局中使用更紧凑的网格 */
.zoom-panel-content .simulator-score-grid,
.zoom-column-content .simulator-score-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  margin-bottom: 10px;
}

.zoom-panel-content .simulator-metric,
.zoom-column-content .simulator-metric {
  padding: 6px 4px;
}

.zoom-panel-content .simulator-metric .value,
.zoom-column-content .simulator-metric .value {
  font-size: 16px;
}

.zoom-panel-content .simulator-metric .label,
.zoom-column-content .simulator-metric .label {
  font-size: 9px;
}

.zoom-panel-content .simulator-combo-grid,
.zoom-column-content .simulator-combo-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px;
  margin-bottom: 10px;
}

.zoom-panel-content .simulator-combo-item,
.zoom-column-content .simulator-combo-item {
  padding: 6px 4px;
  font-size: 10px;
}

.zoom-panel-content .simulator-analysis,
.zoom-column-content .simulator-analysis {
  padding: 8px;
  font-size: 11px;
}

.zoom-panel-content .simulator-analysis h4,
.zoom-column-content .simulator-analysis h4 {
  font-size: 11px;
}

.zoom-panel-content .simulator-suggestion,
.zoom-column-content .simulator-suggestion {
  font-size: 10px;
  padding: 4px 0;
}

.zoom-panel-content .simulator-weighted-score,
.zoom-column-content .simulator-weighted-score {
  padding: 10px;
  margin-top: 10px;
}

.zoom-panel-content .simulator-weighted-score .value,
.zoom-column-content .simulator-weighted-score .value {
  font-size: 24px;
}

.zoom-panel-content .simulator-details,
.zoom-column-content .simulator-details {
  max-height: 150px;
}

.zoom-panel-content .simulator-step-row,
.zoom-column-content .simulator-step-row {
  grid-template-columns: 30px 40px 50px 40px 1fr;
  gap: 4px;
  font-size: 10px;
}

/* 默认（非列布局） */
.simulator-score-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 15px;
}

.simulator-metric {
  text-align: center;
  padding: 10px;
  background: var(--bg);
  border-radius: 8px;
}

.simulator-metric .label {
  font-size: 11px;
  opacity: 0.7;
  margin-bottom: 4px;
}

.simulator-metric .value {
  font-size: 20px;
  font-weight: 700;
  color: var(--accent);
}

.simulator-metric .value.excellent { color: var(--ok); }
.simulator-metric .value.good { color: #7cb342; }
.simulator-metric .value.fair { color: var(--accent); }
.simulator-metric .value.poor { color: var(--danger); }

.simulator-combo-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-bottom: 15px;
}

.simulator-combo-item {
  text-align: center;
  padding: 8px;
  border-radius: 6px;
  font-size: 12px;
}

.simulator-combo-item.big {
  background: rgba(93, 147, 108, 0.15);
  color: var(--ok);
}

.simulator-combo-item.mini {
  background: rgba(184, 139, 90, 0.15);
  color: var(--accent);
}

.simulator-combo-item.break {
  background: rgba(216, 108, 108, 0.15);
  color: var(--danger);
}

.simulator-analysis {
  padding: 12px;
  background: var(--bg);
  border-radius: 8px;
  font-size: 13px;
  line-height: 1.6;
}

.simulator-analysis h4 {
  margin: 0 0 8px;
  font-size: 13px;
  color: var(--text);
}

.simulator-suggestions {
  margin-top: 10px;
}

.simulator-suggestion {
  padding: 6px 0;
  border-bottom: 1px dashed var(--soft);
  font-size: 12px;
}

.simulator-suggestion:last-child {
  border-bottom: none;
}

.simulator-weighted-score {
  margin-top: 15px;
  padding: 15px;
  background: linear-gradient(135deg, var(--accent) 0%, #a67a4a 100%);
  color: white;
  border-radius: 10px;
  text-align: center;
}

.simulator-weighted-score .label {
  font-size: 12px;
  opacity: 0.9;
  margin-bottom: 5px;
}

.simulator-weighted-score .value {
  font-size: 32px;
  font-weight: 700;
}

.simulator-details-toggle {
  margin-top: 10px;
  text-align: center;
}

.simulator-details-toggle button {
  background: transparent;
  border: 1px solid var(--soft);
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
  color: var(--text);
}

.simulator-details {
  margin-top: 10px;
  max-height: 200px;
  overflow-y: auto;
  font-size: 11px;
}

.simulator-step-row {
  display: grid;
  grid-template-columns: 40px 60px 80px 60px 1fr;
  gap: 8px;
  padding: 4px 0;
  border-bottom: 1px solid var(--soft);
}

.simulator-step-row.header {
  font-weight: 600;
  background: var(--bg);
  position: sticky;
  top: 0;
}

.simulator-error {
  padding: 12px;
  background: rgba(216, 108, 108, 0.1);
  border: 1px solid var(--danger);
  border-radius: 8px;
  color: var(--danger);
  font-size: 13px;
}

/* ============ 依赖图分析样式 ============ */

.dependency-section {
  margin-top: 20px;
  padding: 15px;
  background: var(--panel);
  border-radius: 12px;
  border: 1px solid var(--soft);
  margin-bottom: 12px;
}

/* 列布局中的依赖表格 */
.zoom-panel-content .dependency-table,
.zoom-column-content .dependency-table {
  font-size: 11px;
  margin-top: 8px;
}

.zoom-panel-content .dependency-table th,
.zoom-panel-content .dependency-table td,
.zoom-column-content .dependency-table th,
.zoom-column-content .dependency-table td {
  padding: 6px 4px;
}

.zoom-panel-content .suggestions-box,
.zoom-column-content .suggestions-box {
  padding: 8px;
  margin-top: 10px;
}

.zoom-panel-content .suggestions-box h4,
.zoom-column-content .suggestions-box h4 {
  font-size: 11px;
}

.zoom-panel-content .suggestions-box li,
.zoom-column-content .suggestions-box li {
  font-size: 10px;
}

.zoom-panel-content .legend-box,
.zoom-column-content .legend-box {
  padding: 8px;
  font-size: 10px;
}

.zoom-panel-content .solvability-banner,
.zoom-column-content .solvability-banner {
  padding: 8px;
  font-size: 12px;
}

/* 默认依赖表格样式 */
.dependency-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  margin-top: 10px;
}

.dependency-table th,
.dependency-table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--soft);
}

.dependency-table th {
  background: var(--bg);
  font-weight: 600;
  color: var(--text);
}

.dependency-table tr:hover {
  background: rgba(143, 183, 255, 0.1);
}

.dependency-table td:first-child {
  font-weight: 500;
  color: var(--primary);
}

.dependency-unsolvable-hint {
  margin: 0 0 12px;
  padding: 10px 12px;
  border-radius: 8px;
  background: #ffebee;
  border-left: 4px solid var(--danger);
  font-size: 12px;
  color: #5d4037;
}

.dependency-table tr.dependency-row-unsolvable {
  background: rgba(255, 235, 238, 0.9);
  box-shadow: inset 4px 0 0 0 var(--danger);
}

.dependency-table tr.dependency-row-unsolvable td:nth-child(2) {
  font-weight: 700;
}

.dependency-table th.dependency-locate-col,
.dependency-table td.dependency-locate-cell {
  width: 1%;
  white-space: nowrap;
  text-align: center;
  vertical-align: middle;
}

.dependency-table td.dependency-locate-cell {
  font-weight: 400;
}

.dependency-locate-btn {
  padding: 4px 10px;
  font-size: 12px;
  line-height: 1.2;
  border-radius: 6px;
  border: 1px solid var(--accent);
  background: #fff;
  color: var(--accent);
  cursor: pointer;
}

.dependency-locate-btn:hover:not(:disabled) {
  background: rgba(143, 183, 255, 0.12);
}

.dependency-locate-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  border-color: var(--soft);
  color: var(--text);
}

.zoom-dependency-footer {
  padding: 10px 12px 12px;
  border-top: 1px solid var(--soft);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.dependency-delete-log {
  margin: 3px 0 0;
  max-height: 160px;
  overflow-y: auto;
  padding: 10px 12px;
  font-size: 11px;
  line-height: 1.45;
  white-space: pre-wrap;
  word-break: break-word;
  background: var(--panel);
  border: 1px solid var(--soft);
  border-radius: 8px;
  color: var(--text);
}

.suggestions-box {
  margin-top: 15px;
  padding: 12px;
  background: #fff8e1;
  border-radius: 8px;
  border-left: 3px solid #ffc107;
}

.suggestions-box h4 {
  margin: 0 0 8px 0;
  color: #f57c00;
  font-size: 14px;
}

.suggestions-box ul {
  margin: 0;
  padding-left: 18px;
}

.suggestions-box li {
  margin: 4px 0;
  font-size: 12px;
  color: var(--text);
}

.dependency-result h4 {
  margin: 15px 0 10px 0;
  color: var(--text);
  font-size: 14px;
}

.legend-box {
  margin-top: 15px;
  padding: 10px;
  background: #f5f5f5;
  border-radius: 8px;
  font-size: 12px;
  line-height: 1.6;
}

/* 图片转换为底纹 */
.image-mask-paste-zone {
  border: 1px dashed var(--soft);
  border-radius: 10px;
  background: white;
  padding: 14px;
  margin-bottom: 12px;
  color: var(--text);
  font-size: 12px;
  text-align: center;
  cursor: text;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.image-mask-paste-zone:focus {
  outline: none;
  border-color: var(--accent);
  background: #fffdf7;
}

.image-mask-workspace {
  display: grid;
  grid-template-columns: minmax(260px, 0.85fr) minmax(320px, 1.15fr);
  gap: 16px;
  align-items: stretch;
}

.image-mask-preview-card {
  background: var(--panel);
  border: 1px solid var(--soft);
  border-radius: 12px;
  padding: 14px;
  min-height: 360px;
}

.image-mask-source-frame {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
  border: 1px solid var(--soft);
  border-radius: 12px;
  background: #fffdf7;
  overflow: hidden;
}

#imageMaskSourcePreview {
  display: none;
  width: 100%;
  height: 100%;
  max-height: 520px;
  object-fit: contain;
}

#imageMaskSourceEmpty {
  width: 100%;
  min-height: 300px;
  align-items: center;
  justify-content: center;
}

#imageMaskPreviewCanvas {
  width: 100%;
  max-width: 720px;
  aspect-ratio: 1 / 1;
}

@media (max-width: 960px) {
  .image-mask-workspace {
    grid-template-columns: 1fr;
  }
}

/* 保存成功：Toast 卡片（仅包住文字）+ 画布只做粒子层（透明、无底板） */
.save-success-toast {
  position: fixed;
  left: 50%;
  bottom: 28%;
  transform: translateX(-50%) translateY(12px) scale(0.96);
  z-index: 25001;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.35s ease, transform 0.35s ease;
  max-width: min(90vw, 420px);
  padding: 14px 22px;
  border-radius: 12px;
  background: var(--panel);
  color: var(--text);
  font-size: 15px;
  font-weight: 600;
  text-align: center;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.18), 0 0 0 1px var(--soft);
  border: 1px solid var(--soft);
}

.save-success-toast--visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0) scale(1);
}

.save-success-toast--hide {
  opacity: 0;
  transform: translateX(-50%) translateY(-8px) scale(0.98);
}

.save-success-fireworks-canvas {
  position: fixed;
  left: 50%;
  bottom: calc(28% + 56px);
  transform: translateX(-50%);
  width: 260px;
  height: 180px;
  z-index: 25000;
  pointer-events: none;
  background: transparent;
  border: none;
  outline: none;
  box-shadow: none;
}