/* ── Theme Variables ── */
:root {
  /* 默认浅色主题 */
  --bg-body: #f2f4f8;
  --nav-bg: #e4e8ef;
  --nav-text: #7f8c9a;
  --nav-active-text: #2980b9;
  --nav-active-bg: #fff;
  --nav-active-border: #2980b9;
  --panel-bg: #fff;
  --card-bg: #f2f4f8;
  --card-border: #dce1e8;
  --card-hover-bg: #e4e8ef;
  --card-active-bg: #e0edf8;
  --card-active-border: #2980b9;
  --card-text: #5a6a7a;
  --card-text-hover: #2c3e50;
  --card-active-text: #2980b9;
  --toolbar-bg: #fff;
  --toolbar-border: #dce1e8;
  --tb-text: #7f8c9a;
  --tb-hover-bg: #e4e8ef;
  --tb-active-bg: #2980b9;
  --tb-active-text: #fff;
  --tb-danger-hover: #c0392b;
  --status-bg: rgba(255,255,255,0.9);
  --status-border: #dce1e8;
  --status-text: #7f8c9a;
  --hint-bg: rgba(255,255,255,0.9);
  --hint-border: #2980b9;
  --hint-text: #2980b9;
  --color-btn-active-border: #2c3e50;
  --label-text: #7f8c9a;
  --divider: #dce1e8;
  --modal-bg: #fff;
  --modal-border: #dce1e8;
  --modal-title: #2980b9;
  --modal-text: #5a6a7a;
  --modal-overlay: rgba(0,0,0,0.3);
  --th-text: #7f8c9a;
  --td-text: #5a6a7a;
  --td-border: #f0f2f5;
  --accent: #2980b9;
  --scene-clear: #f0f2f5;
  --scene-ground: #e4e8ef;
  --scene-grid1: #b0bec5;
  --scene-grid2: #c8d0d8;
}

[data-theme="soft"] {
  /* 柔和主题 — 奶茶暖色，宝妈友好 */
  --bg-body: #faf5f0;
  --nav-bg: #f0e6da;
  --nav-text: #8c7b6b;
  --nav-active-text: #c47d5a;
  --nav-active-bg: #fff;
  --nav-active-border: #c47d5a;
  --panel-bg: #fff;
  --card-bg: #faf5f0;
  --card-border: #e8ddd0;
  --card-hover-bg: #f0e6da;
  --card-active-bg: #fce8dc;
  --card-active-border: #c47d5a;
  --card-text: #6b5e52;
  --card-text-hover: #3d3028;
  --card-active-text: #c47d5a;
  --toolbar-bg: #fff;
  --toolbar-border: #e8ddd0;
  --tb-text: #8c7b6b;
  --tb-hover-bg: #f0e6da;
  --tb-active-bg: #c47d5a;
  --tb-active-text: #fff;
  --tb-danger-hover: #d9534f;
  --status-bg: rgba(255,255,255,0.9);
  --status-border: #e8ddd0;
  --status-text: #8c7b6b;
  --hint-bg: rgba(255,255,255,0.9);
  --hint-border: #c47d5a;
  --hint-text: #c47d5a;
  --color-btn-active-border: #3d3028;
  --label-text: #8c7b6b;
  --divider: #e8ddd0;
  --modal-bg: #fff;
  --modal-border: #e8ddd0;
  --modal-title: #c47d5a;
  --modal-text: #6b5e52;
  --modal-overlay: rgba(0,0,0,0.3);
  --th-text: #8c7b6b;
  --td-text: #6b5e52;
  --td-border: #f0e6da;
  --accent: #c47d5a;
  /* 3D scene */
  --scene-clear: #faf5f0;
  --scene-ground: #f0e6da;
  --scene-grid1: #d4c4b0;
  --scene-grid2: #e0d4c6;
}

[data-theme="light"] {
  /* 浅色主题 — 干净专业，设计师友好 */
  --bg-body: #f2f4f8;
  --nav-bg: #e4e8ef;
  --nav-text: #7f8c9a;
  --nav-active-text: #2980b9;
  --nav-active-bg: #fff;
  --nav-active-border: #2980b9;
  --panel-bg: #fff;
  --card-bg: #f2f4f8;
  --card-border: #dce1e8;
  --card-hover-bg: #e4e8ef;
  --card-active-bg: #e0edf8;
  --card-active-border: #2980b9;
  --card-text: #5a6a7a;
  --card-text-hover: #2c3e50;
  --card-active-text: #2980b9;
  --toolbar-bg: #fff;
  --toolbar-border: #dce1e8;
  --tb-text: #7f8c9a;
  --tb-hover-bg: #e4e8ef;
  --tb-active-bg: #2980b9;
  --tb-active-text: #fff;
  --tb-danger-hover: #c0392b;
  --status-bg: rgba(255,255,255,0.9);
  --status-border: #dce1e8;
  --status-text: #7f8c9a;
  --hint-bg: rgba(255,255,255,0.9);
  --hint-border: #2980b9;
  --hint-text: #2980b9;
  --color-btn-active-border: #2c3e50;
  --label-text: #7f8c9a;
  --divider: #dce1e8;
  --modal-bg: #fff;
  --modal-border: #dce1e8;
  --modal-title: #2980b9;
  --modal-text: #5a6a7a;
  --modal-overlay: rgba(0,0,0,0.3);
  --th-text: #7f8c9a;
  --td-text: #5a6a7a;
  --td-border: #f0f2f5;
  --accent: #2980b9;
  --scene-clear: #f0f2f5;
  --scene-ground: #e4e8ef;
  --scene-grid1: #b0bec5;
  --scene-grid2: #c8d0d8;
}

[data-theme="dark"] {
  /* 深色主题 — 专注模式 */
  --bg-body: #1a1a2e;
  --nav-bg: #0f1a30;
  --nav-text: #7f8c8d;
  --nav-active-text: #3498db;
  --nav-active-bg: #16213e;
  --nav-active-border: #3498db;
  --panel-bg: #16213e;
  --card-bg: #1a2744;
  --card-border: #2c3e50;
  --card-hover-bg: #2c3e50;
  --card-active-bg: #1a3a5c;
  --card-active-border: #3498db;
  --card-text: #bbb;
  --card-text-hover: #fff;
  --card-active-text: #fff;
  --toolbar-bg: #16213e;
  --toolbar-border: #2c3e50;
  --tb-text: #aab;
  --tb-hover-bg: #2c3e50;
  --tb-active-bg: #1e6fa8;
  --tb-active-text: #fff;
  --tb-danger-hover: #922b21;
  --status-bg: rgba(22,33,62,0.85);
  --status-border: #2c3e50;
  --status-text: #aaa;
  --hint-bg: rgba(22,33,62,0.75);
  --hint-border: #3498db;
  --hint-text: #3498db;
  --color-btn-active-border: #fff;
  --label-text: #7f8c8d;
  --divider: #2c3e50;
  --modal-bg: #16213e;
  --modal-border: #2c3e50;
  --modal-title: #e74c3c;
  --modal-text: #ccc;
  --modal-overlay: rgba(0,0,0,0.6);
  --th-text: #7f8c8d;
  --td-text: #ccc;
  --td-border: #1a2744;
  --accent: #3498db;
  --scene-clear: #1a1a2e;
  --scene-ground: #111820;
  --scene-grid1: #2c3e50;
  --scene-grid2: #1e2d3d;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  display: flex;
  height: 100vh;
  overflow: hidden;
  font-family: 'Segoe UI', system-ui, sans-serif;
  background: var(--bg-body);
  color: var(--card-text);
}

/* ── Sidebar ── */
#sidebar {
  display: flex;
  flex-direction: column;
  z-index: 10;
  box-shadow: 2px 0 6px rgba(0,0,0,0.1);
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: var(--nav-bg);
  border-bottom: 1px solid var(--divider);
  user-select: none;
}
.sidebar-brand-logo {
  height: 36px;
  width: 36px;
  object-fit: contain;
  display: block;
}
.sidebar-brand-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--nav-active-text);
  letter-spacing: 1px;
}

.sidebar-body {
  display: flex;
  flex-direction: row;
  flex: 1;
  min-height: 0;
}

/* ── 模式按钮（侧栏顶部 chip 排列） ───────────────────────── */
.sidebar-modes {
  display: flex;
  gap: 6px;
  padding: 8px 10px;
  background: var(--nav-bg);
  border-bottom: 1px solid var(--divider);
  flex-wrap: wrap;
  flex-shrink: 0;
}
.mode-chip {
  flex: 1 1 auto;
  min-width: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 6px 8px;
  border: 1px solid var(--toolbar-border);
  border-radius: 999px;
  background: transparent;
  color: var(--nav-text);
  font-size: 12px;
  font-family: inherit;
  cursor: pointer;
  user-select: none;
  transition: background 0.15s, border-color 0.15s, color 0.15s, box-shadow 0.15s;
  white-space: nowrap;
}
.mode-chip:hover {
  background: var(--tb-hover-bg);
  color: var(--nav-active-text);
}
.mode-chip.active {
  background: var(--nav-active-border, #2980b9);
  border-color: var(--nav-active-border, #2980b9);
  color: #fff;
  box-shadow: 0 1px 3px rgba(0,0,0,0.15);
}
.mode-chip-icon { font-size: 14px; line-height: 1; }
.mode-chip-label { font-size: 12px; line-height: 1; }
.mode-chip-key {
  font-size: 9px;
  padding: 1px 4px;
  border: 1px solid currentColor;
  border-radius: 3px;
  opacity: 0.65;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  line-height: 1;
}
.mode-chip.active .mode-chip-key {
  opacity: 0.85;
  border-color: rgba(255,255,255,0.6);
}
@media (max-width: 1100px) {
  .mode-chip-label { display: none; }
  .mode-chip { padding: 6px; }
}

/* ── Category Navigation (left narrow column) ── */
#category-nav {
  width: 64px;
  min-width: 64px;
  background: var(--nav-bg);
  display: flex;
  flex-direction: column;
  padding: 8px 0;
  gap: 2px;
}

.cat-tab {
  padding: 14px 4px;
  text-align: center;
  font-size: 0.72rem;
  color: var(--nav-text);
  cursor: pointer;
  border-left: 3px solid transparent;
  transition: all 0.15s;
  user-select: none;
}
.cat-tab:hover {
  color: var(--nav-active-text);
  background: rgba(0,0,0,0.03);
}
.cat-tab.active {
  color: var(--nav-active-text);
  border-left-color: var(--nav-active-border);
  background: var(--nav-active-bg);
  font-weight: 600;
}

/* ── 快捷键角标（交互方案 v5） ───────────────────────────── */
/* 1. 左侧栏 tab 角标：右上小字母，显示主工具键（T/P/I/O） */
.cat-tab {
  position: relative;
}
.cat-tab[data-shortcut]::after {
  content: attr(data-shortcut);
  position: absolute;
  top: 4px;
  right: 4px;
  font-size: 9px;
  font-weight: 600;
  color: var(--nav-active-border, #3498db);
  background: rgba(52, 152, 219, 0.12);
  padding: 1px 4px;
  border-radius: 3px;
  line-height: 1;
  letter-spacing: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  pointer-events: none;
}
.cat-tab.active[data-shortcut]::after {
  background: rgba(52, 152, 219, 0.25);
  color: var(--nav-active-text, #1e6fa8);
}

/* 2. 左侧栏零件卡角标：左上圆形数字 ①②③… 或方框 F1-F12 */
.item-card {
  position: relative;
}
.item-key-badge {
  position: absolute;
  top: 3px;
  left: 3px;
  min-width: 16px;
  height: 16px;
  padding: 0 3px;
  border-radius: 8px;
  background: rgba(52, 152, 219, 0.18);
  color: var(--nav-active-border, #3498db);
  font-size: 0.62rem;
  font-weight: 700;
  line-height: 16px;
  text-align: center;
  pointer-events: none;
  letter-spacing: 0;
}
.item-card.active .item-key-badge {
  background: rgba(52, 152, 219, 0.32);
  color: #fff;
}

/* 3. 顶部工具栏按钮角标：右下小字快捷键 */
.tb-btn {
  position: relative;
}
.tb-btn-key {
  position: absolute !important;
  bottom: 1px;
  right: 3px;
  font-size: 0.5rem !important;
  font-weight: 600;
  color: var(--nav-active-border, #3498db);
  opacity: 0.7;
  line-height: 1;
  pointer-events: none;
  letter-spacing: 0;
}
.tb-btn:hover .tb-btn-key {
  opacity: 1;
}

/* 4. 全局开关：设置里关掉"显示快捷键角标"时，body 加 .no-shortcut-badges class */
body.no-shortcut-badges .cat-tab[data-shortcut]::after,
body.no-shortcut-badges .item-key-badge,
body.no-shortcut-badges .tb-btn-key,
body.no-shortcut-badges .tb-menu-key,
body.no-shortcut-badges .mode-chip-key {
  display: none;
}

/* ── Category Content (right wider column) ── */
#category-content {
  width: 200px;
  min-width: 200px;
  background: var(--panel-bg);
  padding: 12px;
  overflow-y: auto;
}

.cat-panel.hidden {
  display: none;
}

/* ── Item Grid (2 columns) ── */
.item-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.item-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 12px 6px 8px;
  border: 2px solid var(--card-border);
  border-radius: 8px;
  background: var(--card-bg);
  color: var(--card-text);
  cursor: pointer;
  transition: all 0.15s;
  text-align: center;
}
.item-card:hover {
  background: var(--card-hover-bg);
  color: var(--card-text-hover);
  border-color: var(--accent);
}
.item-card.active {
  background: var(--card-active-bg);
  border-color: var(--card-active-border);
  color: var(--card-active-text);
  box-shadow: 0 0 0 2px rgba(0,0,0,0.06);
}

.item-icon {
  font-size: 1.2rem;
  margin-bottom: 4px;
  white-space: nowrap;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.item-icon img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  image-rendering: auto;
}
.item-name {
  font-size: 0.7rem;
  line-height: 1.2;
  word-break: break-all;
}

.color-title {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--label-text);
  margin: 12px 0 8px;
  border-bottom: 1px solid var(--divider);
  padding-bottom: 4px;
}

/* ── Mode Buttons ── */
.mode-btn-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mode-btn {
  padding: 9px 10px;
  border: 1px solid #2c3e50;
  border-radius: 6px;
  background: #1a2744;
  color: #ccc;
  cursor: pointer;
  font-size: 0.83rem;
  text-align: left;
  transition: all 0.15s;
}
.mode-btn:hover { background: #2c3e50; color: #fff; }
.mode-btn.active {
  background: #1e6fa8;
  border-color: #3498db;
  color: #fff;
  box-shadow: 0 0 0 2px rgba(52,152,219,0.3);
}

.key-hint {
  font-size: 0.66rem;
  color: #556;
  margin-top: 5px;
  line-height: 1.5;
}

/* ── Part Buttons ── */
.part-btn-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.part-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border: 1px solid #2c3e50;
  border-radius: 6px;
  background: #1a2744;
  color: #ccc;
  cursor: pointer;
  font-size: 0.82rem;
  transition: all 0.15s;
  text-align: left;
}
.part-btn:hover { background: #2c3e50; color: #fff; border-color: #3498db; }
.part-btn.active {
  background: #2980b9;
  color: #fff;
  border-color: #3498db;
  box-shadow: 0 0 0 2px rgba(52,152,219,0.4);
}
.part-btn .part-icon { font-size: 1rem; min-width: 18px; width: auto; text-align: center; white-space: nowrap; }
.part-btn .part-label { flex: 1; white-space: nowrap; }

/* ── Color Row ── */
.color-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

/* ── Color Palette ── */
#color-palette,
.color-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.color-btn {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s, border-color 0.15s;
}
.color-btn:hover { transform: scale(1.15); }
.color-btn.active {
  border-color: var(--color-btn-active-border);
  transform: scale(1.2);
  box-shadow: 0 0 0 2px rgba(0,0,0,0.15);
}

/* 自定义色 picker（左侧色板末尾的 <input type="color">），与染色 modal 的 .scheme-picker 同款 */
input[type="color"].color-btn-custom {
  padding: 0;
  background: none;
  -webkit-appearance: none;
  appearance: none;
  position: relative;
}
input[type="color"].color-btn-custom::-webkit-color-swatch-wrapper { padding: 0; }
input[type="color"].color-btn-custom::-webkit-color-swatch {
  border: none;
  border-radius: 50%;
}
input[type="color"].color-btn-custom::-moz-color-swatch {
  border: none;
  border-radius: 50%;
}
/* 角标提示这是"自定义"色（细微 + 号），避免与预设色卡看起来一样 */
input[type="color"].color-btn-custom::after {
  content: '+';
  position: absolute;
  right: -2px;
  bottom: -4px;
  font-size: 14px;
  line-height: 1;
  color: #fff;
  text-shadow: 0 0 2px #000, 0 0 2px #000;
  pointer-events: none;
}

/* ── Axis Buttons ── */
.axis-btn-group {
  display: flex;
  gap: 5px;
}

.axis-btn {
  flex: 1;
  padding: 6px 4px;
  border: 1px solid #2c3e50;
  border-radius: 5px;
  background: #1a2744;
  color: #aaa;
  cursor: pointer;
  font-size: 0.78rem;
  text-align: center;
  transition: all 0.15s;
}
.axis-btn:hover { background: #2c3e50; color: #fff; }
.axis-btn.active {
  background: #2980b9;
  border-color: #3498db;
  color: #fff;
}

/* ── Action Buttons ── */
.action-buttons {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.action-btn {
  padding: 8px 10px;
  border: 1px solid #2c3e50;
  border-radius: 6px;
  background: #1a2744;
  color: #ccc;
  cursor: pointer;
  font-size: 0.82rem;
  transition: all 0.15s;
  text-align: left;
}
.action-btn:hover { background: #2c3e50; color: #fff; }
.action-btn.danger { border-color: #7f1f1f; }
.action-btn.danger:hover { background: #922b21; color: #fff; }

/* ── Tips ── */
.tips {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.tips li {
  font-size: 0.75rem;
  color: #7f8c8d;
  padding-left: 12px;
  position: relative;
}

.tips li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: #3498db;
}

/* ── Viewport ── */
#viewport {
  flex: 1;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* ── Toolbar ── */
#toolbar {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  background: var(--toolbar-bg);
  border-bottom: 1px solid var(--toolbar-border);
  flex-shrink: 0;
  flex-wrap: wrap;
  row-gap: 4px;
  z-index: 5;
}

.toolbar-group {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-wrap: nowrap;
}

.toolbar-divider {
  width: 1px;
  height: 28px;
  background: var(--divider);
  margin: 0 8px;
}

/* 窄屏：略微收紧内边距和字号，文字仍然显示，依靠换行避免溢出 */
@media (max-width: 1100px) {
  .tb-btn { padding: 4px 6px; }
  .tb-btn span { font-size: 0.55rem; }
  .toolbar-divider { margin: 0 4px; }
  #toolbar { padding: 4px 8px; gap: 2px; }
}

.tb-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  padding: 6px 10px;
  border: 1px solid transparent;
  border-radius: 6px;
  background: transparent;
  color: var(--tb-text);
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.15s;
  white-space: nowrap;
}
.tb-btn span {
  font-size: 0.6rem;
}
.tb-btn:hover {
  background: var(--tb-hover-bg);
  color: var(--card-text-hover);
}
.tb-btn.active {
  background: var(--tb-active-bg);
  border-color: var(--tb-active-bg);
  color: var(--tb-active-text);
}
.tb-btn.danger:hover {
  background: var(--tb-danger-hover);
  color: #fff;
}

/* Bug 反馈按钮：醒目的红色填充，覆盖默认 tb-btn 透明背景 */
.tb-btn.bug-btn,
.tb-btn.bug-btn:hover {
  background: #e74c3c;
  color: #fff;
  border-color: #e74c3c;
  font-weight: 600;
}
.tb-btn.bug-btn:hover {
  background: #c0392b;
  border-color: #c0392b;
}

.theme-select {
  padding: 4px 8px;
  border: 1px solid var(--toolbar-border);
  border-radius: 6px;
  background: var(--toolbar-bg);
  color: var(--tb-text);
  font-size: 13px;
  cursor: pointer;
  outline: none;
  transition: border-color 0.2s;
}
.theme-select:hover {
  border-color: var(--accent);
}
.theme-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(41,128,185,0.15);
}

/* ── 工具栏下拉菜单 ────────────────────────────── */

.tb-dropdown {
  position: relative;
  display: inline-block;
}

.tb-dropdown-trigger {
  /* 复用 .tb-btn 视觉；这里只标记 active 态 */
}
.tb-dropdown.open > .tb-dropdown-trigger {
  background: var(--tb-hover-bg);
  color: var(--card-text-hover);
}

.tb-dropdown-panel {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  z-index: 1000;
  min-width: 180px;
  background: var(--toolbar-bg);
  border: 1px solid var(--toolbar-border);
  border-radius: 8px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
  padding: 4px;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.tb-dropdown-panel.hidden {
  display: none;
}

/* 靠右侧的下拉（设置）从右边对齐，避免溢出 */
.tb-dropdown[data-dropdown="settings"] .tb-dropdown-panel {
  left: auto;
  right: 0;
}

/* 表单型下拉（设置）有 select/label，需要更舒适的内边距 */
.tb-dropdown-form {
  padding: 12px;
  min-width: 220px;
}

.tb-menu-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: none;
  background: transparent;
  color: var(--tb-text);
  font-size: 13px;
  border-radius: 4px;
  cursor: pointer;
  text-align: left;
  white-space: nowrap;
  font-family: inherit;
  width: 100%;
}
.tb-menu-item:hover {
  background: var(--tb-hover-bg);
  color: var(--card-text-hover);
}
.tb-menu-item:active {
  background: var(--card-active-bg);
}
.tb-menu-item > span {
  flex: 1;
  font-size: 13px;
}
.tb-menu-item > span.tb-menu-key {
  flex: 0 0 auto;
  font-size: 10px;
  color: var(--label-text);
  opacity: 0.7;
  padding: 1px 5px;
  border: 1px solid var(--toolbar-border);
  border-radius: 3px;
  margin-left: 6px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: 0;
}
.tb-menu-item.danger { color: #c0392b; }
.tb-menu-item.danger:hover {
  background: var(--tb-danger-hover, #e74c3c);
  color: #fff;
}
.tb-menu-item.danger:hover > span.tb-menu-key { color: #fff; border-color: rgba(255,255,255,0.5); opacity: 0.9; }

/* 菜单项右侧的 BETA 等小标签胶囊 */
.tb-menu-item > span.tb-menu-badge {
  flex: 0 0 auto;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.5px;
  padding: 1px 5px;
  border-radius: 3px;
  background: #f39c12;
  color: #fff;
  margin-left: 6px;
  line-height: 1.4;
}

/* 设置下拉里"外观 / 辅助显示 / 交互"小标题 */
.tb-dropdown-form .settings-group-title {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--label-text, #888);
  text-transform: uppercase;
  margin-bottom: 6px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--toolbar-border);
}

.tb-menu-divider {
  height: 1px;
  background: var(--divider);
  margin: 4px 2px;
}

.tb-menu-label {
  display: block;
  font-size: 11px;
  color: var(--label-text);
  margin-bottom: 4px;
  font-weight: 600;
  letter-spacing: 0.2px;
}

@media (max-width: 1100px) {
  .tb-dropdown-panel { min-width: 160px; }
  .tb-dropdown-form { min-width: 200px; }
  .tb-menu-item { padding: 6px 10px; font-size: 12px; }
}

/* 设置下拉面板 */
.settings-dropdown {
  position: fixed;
  top: 48px;
  right: 12px;
  z-index: 1000;
  background: var(--toolbar-bg);
  border: 1px solid var(--toolbar-border);
  border-radius: 8px;
  padding: 12px 16px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
  min-width: 160px;
}
.settings-dropdown.hidden {
  display: none;
}
.settings-label {
  display: block;
  font-size: 12px;
  color: var(--label-text);
  margin-bottom: 6px;
  font-weight: 600;
}
.settings-dropdown .theme-select {
  width: 100%;
}

/* ── 草稿恢复弹窗 ─────────────────────────────── */

.autosave-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI",
               "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
}

.autosave-modal {
  background: var(--toolbar-bg, #fff);
  border: 1px solid var(--toolbar-border, #dce1e8);
  border-radius: 10px;
  padding: 22px 24px 18px;
  width: 380px;
  max-width: calc(100vw - 32px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

.autosave-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--card-text-hover, #2c3e50);
  margin-bottom: 14px;
}

.autosave-meta {
  font-size: 13px;
  color: var(--td-text, #5a6a7a);
  background: var(--card-bg, #f2f4f8);
  border: 1px solid var(--divider, #e8edf3);
  border-radius: 6px;
  padding: 10px 12px;
  margin-bottom: 10px;
  line-height: 1.7;
}
.autosave-meta strong {
  color: var(--card-text-hover, #2c3e50);
  font-weight: 500;
}

.autosave-hint {
  font-size: 12px;
  color: var(--label-text, #7f8c9a);
  margin-bottom: 16px;
  line-height: 1.5;
}

.autosave-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

.autosave-btn {
  padding: 7px 14px;
  border: 1px solid var(--toolbar-border, #dce1e8);
  border-radius: 6px;
  background: var(--toolbar-bg, #fff);
  color: var(--card-text, #5a6a7a);
  font-size: 13px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  font-family: inherit;
}
.autosave-btn:hover {
  background: var(--tb-hover-bg, #e4e8ef);
  color: var(--card-text-hover, #2c3e50);
}

.autosave-btn.autosave-primary {
  background: var(--accent, #2980b9);
  border-color: var(--accent, #2980b9);
  color: #fff;
}
.autosave-btn.autosave-primary:hover {
  background: #1f6391;
  border-color: #1f6391;
  color: #fff;
}

.autosave-btn.autosave-discard {
  color: #c0392b;
}
.autosave-btn.autosave-discard:hover {
  background: #fdecea;
  border-color: #f5b7b1;
  color: #a93226;
}

#three-canvas {
  display: block;
  width: 100%;
  flex: 1;
  min-height: 0;
  position: relative;
}

#label-renderer {
  position: absolute !important;
  top: 0;
  left: 0;
  pointer-events: none;
  overflow: hidden;
}

/* ── Status Bar ── */
#status-bar {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 20px;
  background: var(--status-bg);
  border: 1px solid var(--status-border);
  border-radius: 20px;
  padding: 6px 20px;
  font-size: 0.78rem;
  color: var(--status-text);
  pointer-events: none;
  backdrop-filter: blur(4px);
}

#status-bar span {
  white-space: nowrap;
}

/* 状态栏 profile 显示器 + 切换入口（交互方案 v5） */
#status-profile-wrap {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  pointer-events: auto;
}
#status-profile-label {
  font-weight: 600;
  opacity: 0.85;
}
#status-profile-switch {
  border: none;
  background: rgba(52, 152, 219, 0.18);
  color: var(--status-text);
  border-radius: 10px;
  width: 22px;
  height: 22px;
  font-size: 0.9rem;
  cursor: pointer;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s;
}
#status-profile-switch:hover {
  background: rgba(52, 152, 219, 0.35);
}

/* ── Profile 切换卡片对话框（v5 L5 + L7） ────────────────── */
.profile-switch-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  z-index: 10001;
  display: flex;
  align-items: center;
  justify-content: center;
}
.profile-switch-modal {
  background: var(--card-bg, #fff);
  color: var(--card-text, #222);
  border: 1px solid var(--card-border, #ddd);
  border-radius: 12px;
  padding: 24px;
  width: 720px;
  max-width: 94vw;
  max-height: 92vh;
  overflow-y: auto;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}
.profile-switch-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 18px;
}
.profile-switch-close {
  background: none;
  border: none;
  font-size: 18px;
  cursor: pointer;
  color: inherit;
  opacity: 0.6;
  line-height: 1;
  padding: 4px 6px;
}
.profile-switch-close:hover { opacity: 1; }
.profile-switch-cards {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
}
.profile-switch-card {
  border: 2px solid var(--card-border, #ddd);
  border-radius: 10px;
  padding: 16px 12px 14px;
  text-align: center;
  transition: all 0.15s;
  background: var(--panel-bg, transparent);
}
.profile-switch-card.active {
  border-color: var(--accent, #3498db);
  background: rgba(52, 152, 219, 0.08);
}
.profile-switch-icon {
  font-size: 32px;
  margin-bottom: 8px;
  line-height: 1;
}
.profile-switch-label {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 4px;
}
.profile-switch-subtitle {
  font-size: 12px;
  color: var(--label-text, #888);
  margin-bottom: 10px;
}
.profile-switch-lines {
  list-style: none;
  padding: 0;
  margin: 0 0 12px;
  font-size: 12px;
  line-height: 1.55;
  color: var(--label-text, #666);
  text-align: left;
}
.profile-switch-lines li {
  padding: 2px 0;
}
.profile-switch-lines li::before {
  content: '· ';
  color: var(--accent, #3498db);
  font-weight: 700;
}
.profile-switch-pick {
  width: 100%;
  padding: 6px 0;
  border: 1px solid var(--accent, #3498db);
  background: transparent;
  color: var(--accent, #3498db);
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  transition: all 0.15s;
}
.profile-switch-card.active .profile-switch-pick {
  background: var(--accent, #3498db);
  color: #fff;
}
.profile-switch-card:not(.active) .profile-switch-pick:hover {
  background: rgba(52, 152, 219, 0.1);
}
.profile-switch-footer {
  margin-top: 18px;
  text-align: center;
}
.profile-switch-keymap-btn {
  background: transparent;
  border: 1px solid var(--card-border, #ddd);
  color: var(--card-text, #222);
  padding: 6px 14px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
  transition: all 0.15s;
}
.profile-switch-keymap-btn:hover {
  border-color: var(--accent, #3498db);
  color: var(--accent, #3498db);
}

/* 窄屏：卡片改成上下堆叠 */
@media (max-width: 720px) {
  .profile-switch-cards {
    grid-template-columns: 1fr;
  }
}

/* ── 键位速览（v5 L6） ───────────────────────────────────── */
.keymap-figure-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  z-index: 10002;
  display: flex;
  align-items: center;
  justify-content: center;
}
.keymap-figure-modal {
  background: var(--card-bg, #fff);
  color: var(--card-text, #222);
  border: 1px solid var(--card-border, #ddd);
  border-radius: 12px;
  padding: 20px 24px;
  width: 820px;
  max-width: 94vw;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}
.keymap-figure-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--divider, #eee);
  flex-wrap: wrap;
}
.keymap-figure-header > span {
  font-size: 15px;
  font-weight: 600;
  flex: 1;
}
.keymap-figure-tabs {
  display: flex;
  gap: 4px;
}
.keymap-figure-tab {
  padding: 4px 10px;
  border: 1px solid var(--card-border, #ddd);
  background: transparent;
  color: var(--card-text, #222);
  border-radius: 4px;
  cursor: pointer;
  font-size: 12px;
}
.keymap-figure-tab.active {
  background: var(--accent, #3498db);
  border-color: var(--accent, #3498db);
  color: #fff;
}
.keymap-figure-close {
  background: none;
  border: none;
  font-size: 18px;
  cursor: pointer;
  color: inherit;
  opacity: 0.6;
  padding: 4px 6px;
}
.keymap-figure-close:hover { opacity: 1; }

.keymap-figure-body {
  overflow-y: auto;
  padding: 16px 4px 4px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.keymap-figure-group {
  border-left: 3px solid #ccc;
  padding: 8px 10px;
  background: rgba(0, 0, 0, 0.02);
  border-radius: 4px;
}
.keymap-figure-group h3 {
  margin: 0 0 6px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--label-text, #666);
}
.keymap-figure-group table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
  line-height: 1.45;
}
.keymap-figure-group td {
  padding: 2px 4px;
  vertical-align: top;
}
.keymap-figure-key {
  width: 42%;
  font-family: ui-monospace, Menlo, Consolas, monospace;
  font-weight: 600;
  color: var(--accent, #3498db);
  white-space: nowrap;
}

/* 分组颜色（左侧 border + h3） */
.keymap-color-view  { border-left-color: #3498db; }
.keymap-color-view  > h3 { color: #2980b9; }
.keymap-color-tool  { border-left-color: #e67e22; }
.keymap-color-tool  > h3 { color: #d35400; }
.keymap-color-edit  { border-left-color: #27ae60; }
.keymap-color-edit  > h3 { color: #16a085; }
.keymap-color-global{ border-left-color: #95a5a6; }
.keymap-color-global> h3 { color: #7f8c8d; }

.keymap-figure-footer {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--divider, #eee);
}
.keymap-figure-footer .keymap-color-view  { color: #2980b9; }
.keymap-figure-footer .keymap-color-tool  { color: #d35400; }
.keymap-figure-footer .keymap-color-edit  { color: #16a085; }
.keymap-figure-footer .keymap-color-global{ color: #7f8c8d; }
.keymap-figure-footer > span > span {
  display: inline-block;
  padding: 0 6px;
  margin: 0 2px;
  font-weight: 600;
  border-bottom: 2px solid currentColor;
}

@media (max-width: 720px) {
  .keymap-figure-body {
    grid-template-columns: 1fr;
  }
}

/* ── Bug Report Modal ── */
#bug-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
}
#bug-modal-backdrop.hidden { display: none; }
#bug-modal {
  background: var(--card-bg, #fff);
  color: var(--card-text, #222);
  border-radius: 10px;
  padding: 22px 24px;
  width: 520px;
  max-width: 92vw;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 10px 40px rgba(0,0,0,0.3);
}
#bug-modal h3 {
  margin: 0 0 14px 0;
  font-size: 18px;
}
#bug-modal label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin: 12px 0 6px 0;
}
#bug-modal textarea {
  width: 100%;
  min-height: 110px;
  padding: 10px;
  border: 1px solid var(--toolbar-border, #ccc);
  border-radius: 6px;
  font-family: inherit;
  font-size: 14px;
  background: var(--card-bg, #fff);
  color: var(--card-text, #222);
  box-sizing: border-box;
  resize: vertical;
}
#bug-modal .shot-preview {
  width: 100%;
  max-height: 240px;
  border: 1px solid var(--toolbar-border, #ccc);
  border-radius: 6px;
  object-fit: contain;
  background: #f5f5f5;
  display: block;
}
#bug-modal .shot-row {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-top: 6px;
  font-size: 12px;
  color: var(--card-text, #666);
}
#bug-modal .shot-row label {
  margin: 0;
  font-weight: normal;
  display: flex;
  align-items: center;
  gap: 6px;
}
#bug-modal .actions {
  margin-top: 18px;
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}
#bug-modal .actions button {
  padding: 9px 18px;
  border-radius: 6px;
  font-size: 14px;
  cursor: pointer;
  border: 1px solid var(--toolbar-border, #ccc);
  background: var(--card-bg, #fff);
  color: var(--card-text, #222);
}
#bug-modal .actions button.primary {
  background: var(--accent, #e74c3c);
  color: #fff;
  border-color: var(--accent, #e74c3c);
}
#bug-modal .actions button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}
#bug-modal .status-msg {
  margin-top: 10px;
  font-size: 13px;
  min-height: 18px;
}
#bug-modal .status-msg.error { color: #c0392b; }
#bug-modal .status-msg.success { color: #2e7d32; }
#bug-modal .qdf-attach {
  margin-top: 8px;
  padding: 6px 10px;
  font-size: 12px;
  background: #fff8e1;
  border: 1px solid #ffd54f;
  border-radius: 4px;
  color: #5d4037;
}

/* ── Ghost Hint ── */
#ghost-hint {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--hint-bg);
  border: 1px solid var(--hint-border);
  border-radius: 16px;
  padding: 6px 16px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--hint-text);
  pointer-events: none;
  backdrop-filter: blur(4px);
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
/* 按模式着色：让"我现在处于什么状态"一眼可见 */
#ghost-hint[data-mode="anchor"]   { border-color: #27ae60; color: #1e7c44; box-shadow: 0 2px 10px rgba(39,174,96,0.18); }
#ghost-hint[data-mode="quickdel"] { border-color: #c0392b; color: #962a21; box-shadow: 0 2px 10px rgba(192,57,43,0.18); }
#ghost-hint[data-mode="delete"]   { border-color: #2980b9; color: #1e5f87; box-shadow: 0 2px 10px rgba(41,128,185,0.18); }
#ghost-hint[data-mode="connedit"] { border-color: #8e44ad; color: #6f3286; box-shadow: 0 2px 10px rgba(142,68,173,0.18); }
#ghost-hint[data-mode="angle45"]  { border-color: #f39c12; color: #a86a06; box-shadow: 0 2px 10px rgba(243,156,18,0.18); }

/* ── Modal ── */
.modal {
  position: fixed;
  inset: 0;
  background: var(--modal-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  backdrop-filter: blur(3px);
}

.modal.hidden {
  display: none;
}

/* ── Modal Drawer（右侧抽屉风格，不挡视图中心） ───────── */
/* 整体 layout：贴右边，全高，自身不抢左侧 viewport 的事件 */
.modal.modal-drawer.modal-drawer-right {
  background: transparent;        /* 不要 overlay 暗背景，要看清视图 */
  backdrop-filter: none;
  justify-content: flex-end;      /* 内容贴右 */
  align-items: stretch;           /* 占满高 */
  pointer-events: none;           /* backdrop 不拦事件，让视图可继续旋转/缩放 */
}
.modal.modal-drawer.modal-drawer-right > .modal-content {
  pointer-events: auto;           /* drawer 本体接事件 */
  max-width: 380px;
  width: 380px;
  height: 100vh;
  max-height: 100vh;
  border-radius: 0;
  border-right: none;
  border-top: none;
  border-bottom: none;
  border-left: 1px solid var(--modal-border);
  box-shadow: -4px 0 16px rgba(0,0,0,0.12);
  display: flex;
  flex-direction: column;
  overflow: hidden;               /* 内部 body 自己滚 */
  animation: drawer-slide-in 0.18s ease-out;
}
@keyframes drawer-slide-in {
  from { transform: translateX(100%); opacity: 0.5; }
  to   { transform: translateX(0);    opacity: 1; }
}
/* drawer 内 modal-header 紧凑 + 不滚 */
.modal.modal-drawer.modal-drawer-right .modal-header {
  flex: 0 0 auto;
}
/* drawer 内 body 自己滚 */
.modal.modal-drawer.modal-drawer-right .recolor-body {
  flex: 1 1 auto;
  overflow-y: auto;
}
.modal.modal-drawer.modal-drawer-right .recolor-footer {
  flex: 0 0 auto;
}
@media (max-width: 768px) {
  .modal.modal-drawer.modal-drawer-right > .modal-content {
    width: 100%;
    max-width: 100%;
  }
}

/* ── 45通旋转侧边栏 ── */
.angle45-sidebar {
  position: fixed;
  top: 50%;
  right: 16px;
  transform: translateY(-50%);
  width: 200px;
  background: var(--toolbar-bg);
  border: 1px solid var(--toolbar-border);
  border-radius: 12px;
  padding: 14px;
  z-index: 90;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: opacity 0.15s, transform 0.15s;
  overflow: visible;
}
.angle45-sidebar.hidden {
  display: none;
}
.angle45-sidebar-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--card-text);
  text-align: center;
}
.angle45-sidebar-presets {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}
.angle45-deg-btn {
  padding: 10px 0;
  font-size: 15px;
  font-weight: 500;
  border: 2px solid var(--toolbar-border);
  border-radius: 8px;
  background: var(--card-bg);
  color: var(--card-text);
  cursor: pointer;
  transition: all 0.12s;
}
.angle45-deg-btn:hover {
  border-color: var(--accent);
  background: var(--card-active-bg);
  color: var(--accent);
}
.angle45-deg-btn.active {
  border-color: var(--accent);
  background: var(--tb-active-bg);
  color: var(--tb-active-text);
}
.angle45-sidebar-custom {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.angle45-sidebar-custom input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}
.angle45-sidebar-actions {
  display: flex;
  gap: 6px;
  margin-top: 2px;
}

/* ── 通管理面板 (与 angle45-sidebar 统一风格) ── */
.conn-edit-panel {
  position: fixed;
  top: 50%;
  right: 16px;
  transform: translateY(-50%);
  width: 220px;
  background: var(--toolbar-bg);
  border: 1px solid var(--toolbar-border);
  border-radius: 12px;
  padding: 14px;
  z-index: 900;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 80vh;
  overflow-y: auto;
}
.conn-edit-panel.hidden {
  display: none;
}
.conn-edit-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  text-align: center;
}
.conn-edit-empty {
  text-align: center;
  padding: 12px 0;
  font-size: 12px;
  color: var(--card-text);
  opacity: 0.7;
}
.conn-edit-type-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px;
  margin-bottom: 8px;
}
.conn-type-btn {
  font-size: 11px;
  padding: 6px 4px;
  border-radius: 6px;
  cursor: pointer;
  border: 2px solid var(--toolbar-border);
  background: var(--card-bg);
  color: var(--card-text);
  transition: all 0.12s;
}
.conn-type-btn:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
}
.conn-type-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}
.conn-edit-input {
  width: 50px;
  padding: 4px 6px;
  border: 1px solid var(--toolbar-border);
  border-radius: 6px;
  font-size: 12px;
  background: var(--card-bg);
  color: var(--card-text);
  text-align: center;
}
.conn-edit-actions {
  display: flex;
  gap: 6px;
  margin-top: 4px;
}
.conn-edit-reset-btn {
  font-size: 11px;
  padding: 6px 10px;
  border: 2px solid var(--toolbar-border);
  border-radius: 6px;
  background: var(--card-bg);
  color: var(--card-text);
  cursor: pointer;
}
.conn-edit-reset-btn:hover {
  border-color: #e74c3c;
  color: #e74c3c;
}
.conn-edit-done-btn {
  font-size: 11px;
  padding: 6px 14px;
  border: none;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  font-weight: 600;
  flex: 1;
}
.conn-edit-done-btn:hover {
  opacity: 0.9;
}
.conn-type-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.conn-orient-btn {
  font-size: 11px;
  padding: 3px 6px;
  border-radius: 6px;
  cursor: pointer;
  border: 2px solid var(--toolbar-border);
  background: var(--card-bg);
  color: var(--card-text);
  transition: all 0.12s;
}
.conn-orient-btn:hover:not(:disabled) {
  border-color: var(--accent);
}
.conn-orient-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.conn-orient-btn.disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

/* 旋转被拒绝时的抖动动画 */
@keyframes conn-shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-3px); }
  40% { transform: translateX(3px); }
  60% { transform: translateX(-2px); }
  80% { transform: translateX(2px); }
}
.shake {
  animation: conn-shake 0.3s ease;
}

/* 旋转提示 toast */
.conn-rot-toast {
  position: fixed;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: rgba(231, 76, 60, 0.92);
  color: #fff;
  font-size: 13px;
  padding: 8px 18px;
  border-radius: 8px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.25s, transform 0.25s;
  z-index: 10001;
  white-space: nowrap;
  box-shadow: 0 2px 12px rgba(0,0,0,0.25);
}
.conn-rot-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* 碰撞检测 toast */
.collision-toast {
  position: fixed;
  top: 80px;
  left: 50%;
  transform: translateX(-50%) translateY(-10px);
  background: rgba(255, 20, 147, 0.95);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: 8px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.25s, transform 0.25s;
  z-index: 10001;
  white-space: nowrap;
  box-shadow: 0 2px 12px rgba(0,0,0,0.25);
}
.collision-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.modal-content {
  background: var(--modal-bg);
  border: 1px solid var(--modal-border);
  border-radius: 12px;
  padding: 24px;
  min-width: 360px;
  max-width: 500px;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: 0 8px 32px rgba(0,0,0,0.15);
}

/* ── 染色 modal ─────────────────────────────────────── */
.modal-content.recolor-modal {
  max-width: 480px;
  padding: 0;
  display: flex;
  flex-direction: column;
}
.recolor-modal .modal-header { padding: 18px 20px 0; margin-bottom: 0; }
.recolor-body { padding: 12px 20px 4px; }
.recolor-section { padding: 10px 0; border-top: 1px solid var(--modal-border); }
.recolor-section:first-child { border-top: none; padding-top: 6px; }
.recolor-section-top { padding-bottom: 4px; }

/* 视觉中心：色系区做卡片容器，强调视觉权重 */
.recolor-section-primary {
  background: rgba(0, 0, 0, 0.025);
  border-radius: 8px;
  padding: 12px 14px;
  margin: 6px 0;
  border-top: none;
}

/* 一行 label + chip 横排 */
.recolor-row {
  display: flex;
  align-items: center;
  gap: 12px;
}
.recolor-label-inline {
  font-size: 13px;
  font-weight: 600;
  color: var(--modal-text);
  flex-shrink: 0;
}
.recolor-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--modal-text);
  margin-bottom: 8px;
}
.recolor-hint {
  font-size: 11px;
  color: var(--modal-text);
  opacity: 0.6;
  margin-top: 6px;
}
.recolor-affect {
  margin-top: 6px;
  margin-left: 56px; /* 对齐 "应用到" label 右侧 */
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  opacity: 0.9;
}
.recolor-sublabel {
  font-size: 11px;
  font-weight: 400;
  opacity: 0.55;
  margin-left: 6px;
}
.recolor-method-hint {
  margin-left: 6px;
  font-size: 11px;
  opacity: 0.55;
  font-style: italic;
}
.recolor-chips { display: flex; gap: 6px; flex-wrap: wrap; }
.recolor-method-chips { gap: 8px 6px; }
.recolor-chip {
  padding: 6px 14px;
  border: 1px solid var(--toolbar-border);
  border-radius: 999px;
  background: transparent;
  color: var(--modal-text);
  font-size: 13px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.recolor-chip:hover { background: var(--tb-hover-bg); }
.recolor-chip.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* chip 内嵌的 number stepper */
.chip-arg {
  display: inline-flex;
  align-items: center;
  border-left: 1px solid currentColor;
  padding-left: 6px;
  margin-left: 2px;
  opacity: 0.85;
}
.chip-num {
  width: 36px;
  padding: 1px 4px;
  border: 1px solid currentColor;
  border-radius: 4px;
  background: rgba(255,255,255,0.15);
  color: inherit;
  font-size: 12px;
  text-align: center;
  -moz-appearance: textfield;
}
.chip-num::-webkit-outer-spin-button,
.chip-num::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.recolor-chip:not(.active) .chip-num {
  background: transparent;
  border-color: var(--toolbar-border);
}

.recolor-methods { display: flex; flex-direction: column; gap: 6px; }
.recolor-method {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  color: var(--modal-text);
  font-size: 13px;
  padding: 4px 0;
}
.recolor-method-arg {
  margin-left: 8px;
  font-size: 12px;
  opacity: 0.85;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.recolor-num {
  width: 48px;
  padding: 2px 6px;
  border: 1px solid var(--toolbar-border);
  border-radius: 4px;
  background: var(--card-bg, transparent);
  color: var(--modal-text);
  font-size: 12px;
  text-align: center;
}

.recolor-footer {
  padding: 12px 20px 18px;
  border-top: 1px solid var(--modal-border);
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

/* 色系 list 里的色卡 / 自定义计数 select */
#color-scheme-list .scheme-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  cursor: pointer;
  color: var(--modal-text);
  font-size: 13px;
  flex-wrap: wrap;
}
#color-scheme-list .scheme-label { min-width: 56px; }
#color-scheme-list .scheme-swatch {
  display: inline-block;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 1px solid #888;
  flex-shrink: 0;
}
#color-scheme-list .scheme-picker {
  width: 26px;
  height: 26px;
  border: 1px solid #888;
  border-radius: 50%;
  padding: 0;
  cursor: pointer;
  flex-shrink: 0;
  background: none;
  -webkit-appearance: none;
}
#color-scheme-list .scheme-custom-controls {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: 4px;
  flex-wrap: wrap;
}
#color-scheme-list .scheme-custom-count {
  font-size: 12px;
  opacity: 0.8;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.modal-header h2 {
  font-size: 1rem;
  color: var(--modal-title);
}

.modal-close {
  background: none;
  border: none;
  color: #aaa;
  font-size: 1.2rem;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
}

.modal-close:hover {
  background: #2c3e50;
  color: #fff;
}

/* BOM table */
#bom-body table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

#bom-body th {
  text-align: left;
  padding: 6px 8px;
  border-bottom: 1px solid var(--divider);
  color: var(--th-text);
  font-weight: 600;
  font-size: 0.72rem;
  text-transform: uppercase;
}

#bom-body td {
  padding: 7px 8px;
  border-bottom: 1px solid var(--td-border);
  color: var(--td-text);
}

#bom-body tr:last-child td {
  border-bottom: none;
}

#bom-body .bom-total td {
  border-top: 1px solid #2c3e50;
  font-weight: 700;
  color: #fff;
}

.color-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-right: 5px;
  vertical-align: middle;
}

/* ══════════════════════════════════════════════
   步骤查看面板
   ══════════════════════════════════════════════ */

.steps-panel {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--toolbar-bg);
  border: 1px solid var(--toolbar-border);
  border-radius: 12px;
  padding: 10px 16px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 6px;
  z-index: 100;
  box-shadow: 0 4px 20px rgba(0,0,0,0.12);
  min-width: 420px;
  max-width: 620px;
  transition: opacity .2s;
}
.steps-panel.hidden {
  display: none;
}

.steps-header {
  display: flex;
  align-items: center;
  gap: 10px;
}
.steps-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  white-space: nowrap;
}
.steps-layer-toggles {
  display: flex;
  gap: 4px;
  flex: 1;
  justify-content: center;
}
.steps-toggle {
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 12px;
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  color: var(--card-text);
  cursor: pointer;
  transition: all .15s;
  opacity: 0.5;
}
.steps-toggle.active {
  opacity: 1;
  background: var(--card-active-bg);
  border-color: var(--card-active-border);
  color: var(--accent);
}
.steps-toggle:hover {
  background: var(--card-hover-bg);
}
.steps-close-btn {
  background: none;
  border: none;
  font-size: 16px;
  color: var(--tb-text);
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
  margin-left: auto;
}
.steps-close-btn:hover {
  background: var(--tb-hover-bg);
  color: var(--tb-danger-hover);
}

/* 第二行：层级 + 步骤导航 */
.steps-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}
.steps-level-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.steps-level-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  min-width: 48px;
  text-align: center;
}
.steps-divider-v {
  width: 1px;
  height: 22px;
  background: var(--divider);
}
.steps-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.steps-nav-btn {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 6px;
  padding: 5px 10px;
  font-size: 13px;
  cursor: pointer;
  color: var(--card-text);
  transition: background .15s;
}
.steps-nav-btn.sm {
  padding: 4px 8px;
  font-size: 12px;
}
.steps-nav-btn:hover:not(:disabled) {
  background: var(--card-hover-bg);
  color: var(--accent);
}
.steps-nav-btn:disabled {
  opacity: 0.35;
  cursor: default;
}
.steps-counter {
  font-size: 13px;
  font-weight: 600;
  color: var(--card-text);
  min-width: 54px;
  text-align: center;
}

.steps-progress-wrap {
  width: 100%;
  padding: 0 2px;
}
.steps-slider {
  width: 100%;
  accent-color: var(--accent);
  cursor: pointer;
}

/* 紧凑摘要 */
.steps-summary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-size: 12px;
  color: var(--card-text);
  min-height: 18px;
}
.steps-summary-item {
  display: flex;
  align-items: center;
  gap: 3px;
}
.steps-summary-item .icon { font-size: 14px; }
.steps-summary-item .cnt {
  font-weight: 700;
  color: var(--accent);
}
.steps-summary-item .lbl {
  color: var(--card-text);
  opacity: 0.7;
}

/* ── 删除模式操作栏 ── */
#delete-action-bar {
  position: fixed;
  top: 50px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--toolbar-bg, #fff);
  border: 1px solid var(--toolbar-border, #dce1e8);
  border-radius: 8px;
  padding: 6px 12px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.12);
  font-size: 13px;
  user-select: none;
  flex-wrap: wrap;
  max-width: 95vw;
}
#delete-action-bar .dab-title {
  font-weight: 600;
  color: #c0392b;
}
#delete-action-bar .dab-count {
  color: var(--status-text, #7f8c9a);
  min-width: 55px;
}
#delete-action-bar .dab-sep {
  color: var(--card-border, #dce1e8);
  margin: 0 2px;
}
#delete-action-bar .dab-btn {
  padding: 5px 10px;
  border: 1px solid var(--card-border, #dce1e8);
  border-radius: 6px;
  background: var(--card-bg, #f2f4f8);
  cursor: pointer;
  font-size: 13px;
  transition: background 0.15s, border-color 0.15s;
  touch-action: manipulation;
  min-height: 34px;
  white-space: nowrap;
}
#delete-action-bar .dab-btn:hover {
  background: var(--card-hover-bg, #e4e8ef);
  border-color: var(--nav-active-border, #2980b9);
}
#delete-action-bar .dab-btn:active {
  transform: scale(0.95);
}
#delete-action-bar .dab-btn.active,
#delete-action-bar .dab-btn.dab-active {
  background: var(--tb-active-bg, #2980b9);
  color: #fff;
  border-color: var(--tb-active-bg, #2980b9);
}
#delete-action-bar .dab-btn.dab-danger {
  color: #c0392b;
  font-weight: 600;
}
#delete-action-bar .dab-btn.dab-danger:hover:not(:disabled) {
  background: #c0392b;
  color: #fff;
  border-color: #c0392b;
}
#delete-action-bar .dab-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* 减选 toggle 激活态 + #dab-count 在减选模式下醒目背景 */
#delete-action-bar .dab-btn.dab-toggle.active {
  background: #c0392b;
  color: #fff;
  border-color: #c0392b;
}
#delete-action-bar .dab-count.dab-count-subtract {
  background: rgba(192, 57, 43, 0.12);
  color: #c0392b;
  border-radius: 4px;
  padding: 2px 6px;
  font-weight: 600;
}

/* C5: 移动模式下，除 #dab-move / #dab-exit 外的按钮置灰禁用，引导用户先落位或退出 */
#delete-action-bar.dab-move-active .dab-btn:not(#dab-move):not(#dab-exit),
#delete-action-bar.dab-move-active .dab-sub {
  opacity: 0.35;
  pointer-events: none;
  filter: grayscale(0.5);
}
#delete-action-bar.dab-move-active #dab-move {
  background: var(--tb-active-bg, #2980b9);
  color: #fff;
  border-color: var(--tb-active-bg, #2980b9);
}

/* ── 批量移动 HUD (Phase B) ── */
#move-hud {
  position: fixed;
  top: 110px;
  right: 16px;
  z-index: 9999;
  min-width: 200px;
  background: rgba(20, 25, 35, 0.92);
  color: #f4f6fa;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 13px;
  font-family: 'SF Mono', 'Consolas', monospace;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
  pointer-events: none;
  user-select: none;
  line-height: 1.55;
}
#move-hud .mhud-line {
  display: flex;
  gap: 6px;
  align-items: baseline;
}
#move-hud .mhud-mode {
  font-weight: 700;
  color: #ffd966;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
  font-family: system-ui, -apple-system, sans-serif;
}
#move-hud .mhud-k {
  display: inline-block;
  min-width: 32px;
  color: #9aa3b2;
}
#move-hud .mhud-faint { color: #a8b0bd; }
#move-hud .mhud-hint {
  margin-top: 6px;
  padding-top: 6px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-family: system-ui, -apple-system, sans-serif;
  font-size: 11.5px;
  color: #8b94a5;
}
#move-hud.mhud-nudge .mhud-hint { display: none; }

/* ── 框选矩形 ── */
#marquee-rect {
  position: fixed;
  z-index: 9998;
  border: 2px dashed #2980b9;
  background: rgba(41, 128, 185, 0.1);
  pointer-events: none;
}

/* ── 操作说明面板 ── */
.help-panel {
  position: absolute;
  top: 52px;
  right: 12px;
  width: 280px;
  max-height: calc(100vh - 80px);
  overflow-y: auto;
  background: var(--toolbar-bg);
  border: 1px solid var(--toolbar-border);
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  z-index: 150;
  animation: helpFadeIn 0.15s ease;
}
.help-panel.hidden { display: none; }
@keyframes helpFadeIn {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}
.help-panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 14px;
  border-bottom: 1px solid var(--divider);
  font-weight: 600;
  font-size: 14px;
  color: var(--accent);
}
.help-close-btn {
  background: none;
  border: none;
  font-size: 16px;
  cursor: pointer;
  color: var(--card-text);
  padding: 2px 6px;
  border-radius: 4px;
}
.help-close-btn:hover { background: var(--tb-hover-bg); }
.help-panel-body {
  padding: 10px 14px 14px;
}
.help-panel-body h4 {
  font-size: 12px;
  color: var(--accent);
  margin: 10px 0 6px;
  padding-bottom: 3px;
  border-bottom: 1px solid var(--divider);
}
.help-panel-body h4:first-child { margin-top: 0; }
.help-table {
  width: 100%;
  font-size: 12px;
  border-collapse: collapse;
}
.help-table td {
  padding: 3px 0;
  color: var(--card-text);
}
.help-table td:first-child {
  font-weight: 600;
  white-space: nowrap;
  padding-right: 12px;
  color: var(--card-text-hover, var(--card-text));
}

/* ── 零件标签 ──────────────────────────────────────────────── */
.part-label {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid #90a4ae;
  border-radius: 10px;
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 500;
  color: #37474f;
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
  box-shadow: 0 1px 3px rgba(0,0,0,0.15);
}

/* 标签编辑弹窗 */
.label-dialog {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: #fff;
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.25);
  z-index: 9999;
  min-width: 260px;
}
.label-dialog.hidden { display: none; }
.label-dialog-header {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 12px;
  color: #263238;
}
.label-dialog-input {
  width: 100%;
  box-sizing: border-box;
  padding: 8px 10px;
  border: 1px solid #b0bec5;
  border-radius: 6px;
  font-size: 14px;
  outline: none;
}
.label-dialog-input:focus {
  border-color: #42a5f5;
  box-shadow: 0 0 0 2px rgba(66,165,245,0.2);
}
.label-dialog-actions {
  margin-top: 14px;
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}
.label-dialog-btn {
  padding: 6px 14px;
  border: none;
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
  background: #eceff1;
  color: #546e7a;
}
.label-dialog-btn:hover { background: #cfd8dc; }
.label-dialog-btn.primary {
  background: #42a5f5;
  color: #fff;
}
.label-dialog-btn.primary:hover { background: #1e88e5; }
.label-dialog-btn.danger {
  background: #ef5350;
  color: #fff;
}
.label-dialog-btn.danger:hover { background: #d32f2f; }

/* ══════════════════════════════════════════════
   库存管理 & 补件需求
   ══════════════════════════════════════════════ */

.inv-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.inv-table td {
  padding: 4px 2px;
  border-bottom: 1px solid var(--toolbar-border);
  vertical-align: middle;
}
.inv-btn {
  width: 26px;
  height: 26px;
  border: 1px solid var(--toolbar-border);
  border-radius: 4px;
  background: var(--card-bg);
  color: var(--card-text);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  line-height: 1;
}
.inv-btn:hover {
  background: var(--tb-hover-bg);
}
.inv-qty {
  width: 48px;
  text-align: center;
  border: 1px solid var(--toolbar-border);
  border-radius: 4px;
  padding: 3px 4px;
  font-size: 13px;
  background: var(--card-bg);
  color: var(--card-text);
  margin: 0 2px;
}
.inv-qty::-webkit-inner-spin-button,
.inv-qty::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.shortage-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.shortage-table th {
  padding: 6px 4px;
  border-bottom: 2px solid var(--toolbar-border);
  text-align: left;
  font-weight: 600;
  color: var(--card-text);
  font-size: 12px;
}
.shortage-table td {
  padding: 5px 4px;
  border-bottom: 1px solid var(--toolbar-border);
  vertical-align: middle;
}
.shortage-table tr.shortage-red td {
  background: rgba(231, 76, 60, 0.08);
}
.shortage-table tr.shortage-red td:last-child {
  color: #e74c3c;
}

.action-btn.danger {
  background: #ef5350;
  color: #fff;
  border: none;
}
.action-btn.danger:hover {
  background: #d32f2f;
}