/* ============================================================
 * editor.css — 醫療科技風 Console (refined, 2026-05)
 *
 * 設計原則:
 *   - 三層板塊: 品牌列 (chrome) / 工具列 (control) / 主面板 (workspace)
 *   - 主色 #1a73e8 配 mint #14b8a6 + 珊瑚 #ff8a65, 用於漸層與重點按鈕
 *   - 灰階基於 slate (Tailwind 語意); 文字明確 3 階: text / muted / soft
 *   - 一致的圓角 (8px / 12px) 與 elevation (4 階陰影)
 *   - 過場一律 200ms cubic-bezier(0.4, 0, 0.2, 1)
 * ============================================================ */

:root {
  /* --- 配色 --- */
  --primary: #1a73e8;
  --primary-light: #4285f4;
  --primary-dark: #1557b0;
  --primary-soft: #f0f6ff;
  --primary-tint: #e8f0fe;

  --mint: #14b8a6;
  --mint-bright: #2dd4bf;
  --mint-soft: #ccfbf1;

  --accent: #ff8a65;
  --accent-dark: #ff7043;

  --bg: #f7f9fc;
  --bg-soft: #fafbfd;
  --card: #ffffff;
  --border: #e2e8f0;
  --border-soft: #f1f5f9;

  --text: #0f172a;
  --text-muted: #64748b;
  --text-soft: #94a3b8;

  --danger: #ef4444;
  --warning: #f59e0b;
  --success: #10b981;

  /* --- 形狀 --- */
  --radius-sm: 6px;
  --radius: 8px;
  --radius-lg: 12px;
  --radius-pill: 999px;

  /* --- 陰影 (elevation) --- */
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow:    0 1px 3px rgba(15, 23, 42, 0.08), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 28px rgba(15, 23, 42, 0.12);

  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI",
               "Microsoft JhengHei", "PingFang TC", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  height: 100vh;
  display: flex;
  flex-direction: column;
  color: var(--text);
  font-size: 14px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================================
 * 表頭 (page-header) — 與留言管理 (/admin/messages) 一致
 * ============================================================ */
.page-header {
  background: linear-gradient(180deg, #ffffff 0%, var(--bg-soft) 100%);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  position: relative;
  padding: 24px 32px;
  flex-shrink: 0;
  z-index: 11;
}

.page-header::before {
  content: "";
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary) 0%, var(--mint) 50%, var(--accent) 100%);
  opacity: 0.7;
}

.page-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.page-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-title-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 18px;
  box-shadow: 0 2px 8px rgba(26, 115, 232, 0.3);
}

.nav-links { display: flex; gap: 8px; }

.nav-link {
  padding: 7px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: white;
  color: var(--primary);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  transition: all var(--transition);
}

.nav-link:hover { background: var(--primary-soft); border-color: var(--primary); }

/* ============================================================
 * 工具列 (topbar)
 * ============================================================ */
.topbar {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 12px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  flex-shrink: 0;
  position: relative;
  z-index: 10;
  box-shadow: var(--shadow-xs);
}

/* --- Tabs (藥丸式分頁，與留言管理一致) --- */
.tabs {
  display: flex;
  gap: 4px;
  background: var(--border-soft);
  padding: 4px;
  border-radius: var(--radius);
}

.tab {
  padding: 7px 16px;
  border: none;
  background: transparent;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  font-family: inherit;
  color: var(--text-muted);
  transition: all var(--transition);
}

.tab:hover { color: var(--primary); }

.tab.active {
  background: var(--card);
  color: var(--primary);
  box-shadow: var(--shadow-xs);
  font-weight: 600;
}

/* --- Action 按鈕區 --- */
.actions {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  align-items: center;
}

.actions.hidden { display: none; }

.actions button {
  padding: 8px 14px;
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 13px;
  font-family: inherit;
  color: var(--text);
  transition: all var(--transition);
  font-weight: 500;
}

.actions button:hover {
  background: var(--primary-soft);
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.actions button:active { transform: translateY(0); }

/* 儲存 = 綠（提交/正向）*/
.actions button.primary {
  background: linear-gradient(135deg, var(--mint) 0%, var(--mint-bright) 100%);
  color: white;
  border-color: transparent;
  font-weight: 600;
  box-shadow: 0 2px 6px rgba(20, 184, 166, 0.3);
}

.actions button.primary:hover {
  background: linear-gradient(135deg, var(--mint) 0%, var(--mint-bright) 100%);
  box-shadow: 0 4px 12px rgba(20, 184, 166, 0.42);
  color: white;
  transform: translateY(-1px);
}

/* 刪除節點 = 紅（危險）*/
#btn-del {
  color: var(--danger);
  border-color: #fecaca;
  font-weight: 600;
}

#btn-del:hover {
  background: #fee2e2;
  border-color: var(--danger);
  color: var(--danger);
}

/* ============================================================
 * 主面板
 * ============================================================ */
.pane {
  flex: 1;
  display: flex;
  overflow: hidden;
  min-height: 0;
}

.pane.hidden { display: none; }

/* --- 左側清單面板 --- */
.tree-list {
  width: 320px;
  background: var(--card);
  border-right: 1px solid var(--border);
  overflow: auto;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.panel-header {
  padding: 18px 18px 14px;
  border-bottom: 1px solid var(--border-soft);
  background: var(--card);
  position: sticky;
  top: 0;
  z-index: 1;
}

.panel-header h3 {
  margin: 0 0 4px;
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.01em;
}

.panel-header p {
  margin: 0;
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.5;
}

.tree-list ul {
  list-style: none;
  padding-left: 18px;
  margin: 0;
}

.tree-list > ul {
  padding: 12px 12px 24px;
}

/* --- 樹狀節點 --- */
.tree-node {
  cursor: pointer;
  padding: 7px 10px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13.5px;
  -webkit-user-select: none;
  user-select: none;
  margin: 1px 0;
  transition: all var(--transition);
}

.tree-node:hover {
  background: var(--primary-soft);
  transform: translateX(2px);
}

.tree-node.selected {
  background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);
  color: white;
  box-shadow: 0 2px 6px rgba(26, 115, 232, 0.25);
}

.tree-node .toggle {
  width: 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 18px;
  font-weight: 700;
  line-height: 1;
  color: var(--text-muted);
  transition: transform var(--transition), background var(--transition), color var(--transition);
  flex-shrink: 0;
}

.tree-node .toggle.clickable { cursor: pointer; border-radius: 6px; }
.tree-node .toggle.clickable:hover {
  background: rgba(26, 115, 232, 0.18);
  color: var(--primary);
  transform: scale(1.15);
}

.tree-node.selected .toggle { color: rgba(255, 255, 255, 0.85); }
.tree-node.selected .toggle.clickable:hover {
  background: rgba(255, 255, 255, 0.25);
  color: white;
}

.tree-node .kind {
  font-size: 11px;
  color: var(--text-soft);
  margin-left: auto;
  padding: 2px 9px;
  background: var(--border-soft);
  border-radius: var(--radius-pill);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.tree-node.selected .kind {
  color: rgba(255, 255, 255, 0.95);
  background: rgba(255, 255, 255, 0.2);
}

/* ============================================================
 * 表單區
 * ============================================================ */
.form-pane {
  flex: 1;
  padding: 28px 40px 0;
  background: var(--bg);
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 0;
  /* 微妙的 dot grid 背景, 提升「畫布」感 */
  background-image:
    radial-gradient(circle, rgba(148, 163, 184, 0.10) 1px, transparent 1.2px);
  background-size: 24px 24px;
  background-position: 0 0;
}

.form-pane > * {
  max-width: 900px;
  width: 100%;
}

/* --- 表單區段 (form-section) --- */
.form-section {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-xs);
  transition: box-shadow var(--transition);
}

.form-section:hover { box-shadow: var(--shadow-sm); }

.form-section-head {
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-soft);
}

.form-section-head h3 {
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.01em;
}

.form-section-head p {
  margin: 0;
  font-size: 12.5px;
  color: var(--text-muted);
  line-height: 1.5;
}

.form-section label {
  font-size: 13px;
  color: var(--text);
  margin-top: 16px;
  font-weight: 600;
  letter-spacing: 0.02em;
  display: block;
}

.form-section > label:first-of-type,
.form-section-head + label { margin-top: 0; }

/* --- 輸入元件 --- */
.form-section input[type="text"],
.form-section textarea,
.form-section select {
  margin-top: 8px;
  padding: 10px 13px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-size: 14px;
  line-height: 1.55;
  font-family: inherit;
  width: 100%;
  resize: vertical;
  background: var(--card);
  color: var(--text);
  transition: all var(--transition);
}

/* textarea 最小高度 */
.form-section textarea { min-height: 90px; }
#f-text { min-height: 260px; }
#tpl-text { min-height: 320px; }

.form-section select { padding: 9px 13px; cursor: pointer; }

.form-section input[type="text"]:focus,
.form-section textarea:focus,
.form-section select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.15);
}

.form-section textarea:disabled,
.form-section input:disabled,
.form-section select:disabled {
  background: var(--border-soft);
  color: var(--text-soft);
  cursor: not-allowed;
}

.form-section .hint {
  font-size: 12.5px;
  color: var(--text-muted);
  margin-top: 6px;
  font-weight: normal;
  line-height: 1.5;
}

.form-section .hint.warn {
  color: var(--accent-dark);
  background: #fff7ed;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--accent);
}

/* --- 類型 radio --- */
.radio-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--bg-soft);
  padding: 14px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  margin-top: 8px;
}

.radio-group label {
  font-weight: normal;
  margin-top: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: 13.5px;
  color: var(--text);
}

.radio-group input[type="radio"] {
  accent-color: var(--primary);
  width: 16px;
  height: 16px;
}

/* --- 套用公版列 --- */
.form-section .apply-row {
  display: flex;
  gap: 8px;
  align-items: stretch;
  margin-top: 8px;
}

.form-section .apply-row select { flex: 1; margin-top: 0; }

.form-section .apply-row button {
  padding: 8px 18px;
  border: 1px solid transparent;
  background: linear-gradient(135deg, var(--mint) 0%, var(--mint-bright) 100%);
  color: white;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 13px;
  font-family: inherit;
  font-weight: 600;
  white-space: nowrap;
  box-shadow: 0 2px 6px rgba(20, 184, 166, 0.3);
  transition: all var(--transition);
}

.form-section .apply-row button:hover:not(:disabled) {
  box-shadow: 0 4px 12px rgba(20, 184, 166, 0.42);
  transform: translateY(-1px);
}

.form-section .apply-row button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* --- phone 欄位 group --- */
.phone-group {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px dashed var(--border);
}

.phone-group[hidden] { display: none; }

/* --- form footer (apply 按鈕) --- */
.form-footer {
  position: sticky;
  bottom: 0;
  background: linear-gradient(180deg, transparent 0%, var(--bg) 30%);
  padding: 24px 0 28px;
  margin-top: 8px;
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  width: 100%;
}

/* --- 結束追問設定：開關列 --- */
.switch-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 6px;
  cursor: pointer;
  font-size: 14px;
}
.switch-row input[type="checkbox"] {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  cursor: pointer;
}
.settings-pane-inner {
  max-width: 720px;
  margin: 0 auto;   /* 在分頁內水平置中 */
}

/* form-footer 按鈕（套用變更 / 儲存設定 / 重新載入）統一風格 */
.form-footer button {
  padding: 10px 22px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  border-radius: var(--radius);
  cursor: pointer;
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  transition: all var(--transition);
}

.form-footer button:hover {
  background: var(--primary-soft);
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

/* 套用變更 / 儲存設定 = 綠（提交/正向）*/
.form-footer button.primary {
  background: linear-gradient(135deg, var(--mint) 0%, var(--mint-bright) 100%);
  color: white;
  border-color: transparent;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(20, 184, 166, 0.32);
}

.form-footer button.primary:hover {
  background: linear-gradient(135deg, var(--mint) 0%, var(--mint-bright) 100%);
  color: white;
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(20, 184, 166, 0.42);
}

/* ============================================================
 * 公版管理頁
 * ============================================================ */
.tpl-new-btn {
  margin: 12px 14px;
  padding: 9px 12px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  background: linear-gradient(135deg, var(--mint) 0%, var(--mint-bright) 100%);
  color: white;
  box-shadow: 0 2px 6px rgba(20, 184, 166, 0.3);
  transition: all var(--transition);
}

.tpl-new-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(20, 184, 166, 0.4);
}

#tpl-list {
  list-style: none;
  padding: 0 14px 24px;
  margin: 0;
}

.tpl-item {
  padding: 10px 12px;
  border-radius: var(--radius);
  cursor: pointer;
  margin-bottom: 6px;
  border: 1px solid var(--border);
  background: var(--card);
  transition: all var(--transition);
}

.tpl-item:hover {
  border-color: var(--primary);
  background: var(--primary-soft);
  transform: translateX(2px);
}

.tpl-item.selected {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: white;
  border-color: transparent;
  box-shadow: 0 3px 10px rgba(26, 115, 232, 0.3);
}

.tpl-item .tpl-item-id {
  font-size: 11px;
  color: var(--text-soft);
  font-family: ui-monospace, "Consolas", monospace;
}

.tpl-item.selected .tpl-item-id { color: rgba(255, 255, 255, 0.9); }

.tpl-item .tpl-item-name {
  font-size: 13.5px;
  font-weight: 600;
  margin-top: 3px;
}

.tpl-item .tpl-item-desc {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
  line-height: 1.45;
}

.tpl-item.selected .tpl-item-desc { color: rgba(255, 255, 255, 0.92); }

.tpl-actions {
  display: flex;
  gap: 12px;
  margin-top: 8px;
  margin-bottom: 28px;
  justify-content: flex-end;
}

.tpl-actions button {
  padding: 10px 22px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 14px;
  font-family: inherit;
  font-weight: 500;
  transition: all var(--transition);
}

.tpl-actions button:hover {
  background: var(--primary-soft);
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

/* 儲存公版 = 綠（提交/正向）*/
.tpl-actions button.primary {
  background: linear-gradient(135deg, var(--mint) 0%, var(--mint-bright) 100%);
  color: white;
  border-color: transparent;
  font-weight: 600;
  box-shadow: 0 2px 6px rgba(20, 184, 166, 0.3);
}

.tpl-actions button.primary:hover {
  background: linear-gradient(135deg, var(--mint) 0%, var(--mint-bright) 100%);
  box-shadow: 0 4px 12px rgba(20, 184, 166, 0.42);
  color: white;
  transform: translateY(-1px);
}

/* 刪除公版 = 紅（危險）*/
#btn-tpl-delete {
  color: var(--danger);
  border-color: #fecaca;
  font-weight: 600;
}

#btn-tpl-delete:hover {
  background: #fee2e2;
  border-color: var(--danger);
  color: var(--danger);
  transform: translateY(-1px);
}

/* ============================================================
 * 樹狀圖預覽 (D3)
 * ============================================================ */
#tree-pane {
  position: relative;
  background-color: var(--bg);
  /* 多層: 兩個柔和色斑 + 細密 dot grid */
  background-image:
    radial-gradient(circle at 25% 30%, rgba(26, 115, 232, 0.05) 0%, transparent 45%),
    radial-gradient(circle at 75% 70%, rgba(20, 184, 166, 0.05) 0%, transparent 45%),
    radial-gradient(circle, rgba(148, 163, 184, 0.16) 1px, transparent 1.2px);
  background-size: 100% 100%, 100% 100%, 24px 24px;
}

#tree-svg {
  width: 100%;
  height: 100%;
  cursor: grab;
}

#tree-svg:active { cursor: grabbing; }

.tree-hint {
  position: absolute;
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(15, 23, 42, 0.85);
  color: white;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  font-size: 12.5px;
  pointer-events: none;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow-md);
}

/* --- 樹狀圖節點 --- */
.node-rect {
  cursor: pointer;
  stroke-width: 1.5;
  transition: filter 0.25s ease, transform 0.25s ease;
  transform-origin: center;
  transform-box: fill-box;
}

.node-rect.branch { fill: url(#gradient-branch); stroke: var(--primary); }
.node-rect.leaf   { fill: url(#gradient-leaf);   stroke: #f59e0b; }
.node-rect.empty  { fill: #f1f5f9;               stroke: #94a3b8; }

.node-rect.selected {
  stroke-width: 3;
  filter: drop-shadow(0 4px 8px rgba(26, 115, 232, 0.4));
}

.node-rect:hover {
  filter: drop-shadow(0 4px 10px rgba(26, 115, 232, 0.3));
}

.node-text {
  font-size: 12.5px;
  fill: var(--text);
  pointer-events: none;
  -webkit-user-select: none;
  user-select: none;
  font-weight: 500;
}

.node-rect.empty + .node-text { fill: var(--text-muted); }

.link {
  fill: none;
  stroke: #cbd5e1;
  stroke-width: 1.8;
  stroke-linecap: round;
  transition: stroke 0.2s ease;
}

.link.highlight {
  stroke: var(--primary);
  stroke-width: 2.5;
}

@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================
 * 狀態列 (status bar)
 * ============================================================ */
.status {
  background: linear-gradient(90deg, #1e293b 0%, #334155 100%);
  color: white;
  padding: 6px 28px;
  font-size: 12px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  letter-spacing: 0.02em;
}

.status::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 6px rgba(20, 184, 166, 0.6);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.4; }
}

/* ============================================================
 * Toast (浮動提示)
 * ============================================================ */
.toast {
  position: fixed;
  top: 24px;
  left: 50%;
  transform: translate(-50%, -8px);
  padding: 12px 22px;
  border-radius: var(--radius);
  color: white;
  font-size: 13.5px;
  font-weight: 600;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transition: opacity 0.25s ease, transform 0.25s ease;
  pointer-events: none;
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 10px;
  letter-spacing: 0.02em;
}

.toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

.toast.success {
  background: linear-gradient(135deg, var(--success) 0%, #34d399 100%);
}

.toast.error {
  background: linear-gradient(135deg, var(--danger) 0%, #f87171 100%);
}

.toast-icon {
  display: inline-flex;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.25);
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
}

/* ============================================================
 * 圖庫分頁 + 答覆附加圖片
 * ============================================================ */
.images-pane-inner { max-width: 960px; }

.img-upload-row { display: flex; gap: 10px; margin: 6px 0 18px; }

.img-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 14px;
}

.img-empty { color: var(--text-muted); font-size: 14px; padding: 24px 0; }

.img-cell {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.img-thumb {
  width: 100%;
  height: 120px;
  object-fit: cover;
  background: var(--border-soft);
  display: block;
}

.img-name {
  font-size: 12px;
  color: var(--text-muted);
  padding: 8px 10px 0;
  word-break: break-all;
  flex: 1;
}

.img-del {
  margin: 8px 10px 10px;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid #fecaca;
  background: #fff;
  color: var(--danger);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: all var(--transition);
}
.img-del:hover { background: #fee2e2; border-color: var(--danger); }

/* 答覆附加圖片複選 */
.img-picker {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 10px;
  margin-top: 6px;
}

.img-pick {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  background: var(--card);
  display: flex;
  flex-direction: column;
  transition: all var(--transition);
}
.img-pick:hover { border-color: var(--primary); }

.img-pick input[type="checkbox"] {
  position: absolute;
  top: 6px;
  left: 6px;
  width: 18px;
  height: 18px;
  cursor: pointer;
  z-index: 2;
}

.img-pick img {
  width: 100%;
  height: 90px;
  object-fit: cover;
  background: var(--border-soft);
  display: block;
}

.img-pick:has(input:checked) {
  border-color: var(--mint);
  box-shadow: inset 0 0 0 2px var(--mint);
}

.img-pick-name {
  font-size: 11px;
  color: var(--text-muted);
  padding: 5px 8px;
  word-break: break-all;
}

/* 圖庫資料夾清單 */
#folder-list { list-style: none; padding: 0 10px 24px; margin: 0; }

.folder-item {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px 10px;
  border-radius: var(--radius);
  cursor: pointer;
  margin-bottom: 4px;
  border: 1px solid transparent;
  transition: all var(--transition);
}
.folder-item:hover { background: var(--primary-soft); }
.folder-item.selected {
  background: var(--primary-soft);
  border-color: var(--primary);
}
.folder-name {
  flex: 1;
  font-size: 13.5px;
  color: var(--text);
  word-break: break-all;
}
.folder-item.selected .folder-name { color: var(--primary); font-weight: 600; }

/* 資料夾張數徽章：放在名稱與操作鈕之間，數字靠右對齊好掃視 */
.folder-count {
  flex: 0 0 auto;
  min-width: 1.6em;
  padding: 1px 6px;
  margin-right: 2px;
  border-radius: 999px;
  background: #e5e7eb;
  color: #4b5563;
  font-size: 11px;
  font-variant-numeric: tabular-nums;   /* 數字等寬，多列並排時不會跳動 */
  text-align: center;
  line-height: 1.6;
}
.folder-item.selected .folder-count { background: var(--primary); color: #fff; }

.folder-btn {
  border: none;
  background: transparent;
  cursor: pointer;
  font-size: 13px;
  padding: 4px 6px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  transition: all var(--transition);
}
.folder-btn:hover { background: #fff; color: var(--primary); }
.folder-btn.danger:hover { color: var(--danger); background: #fee2e2; }

#f-images-folder { max-width: 260px; }
#f-images-count { align-self: center; white-space: nowrap; }

/* ============================================================
 * 響應式
 * ============================================================ */
@media (max-width: 900px) {
  .page-header { padding: 16px 16px; }
  .topbar { padding: 8px 16px; }
  .form-pane { padding: 18px 18px 0; }
  .form-section { padding: 18px 20px; }
  .tree-list { width: 240px; }
}