/* =========================================================
   TaleKin Lab — Desktop UI Foundation
   只负责视觉与交互组件，不承载业务状态或请求逻辑。
   设计基准：1440px；验收宽度：1280 / 1440 / 1920px。
   ========================================================= */

:root {
  color-scheme: light;

  /* Happy Hues 品牌色 */
  --lab-bg: #fffffe;
  --lab-ink: #272343;
  --lab-text: #2d334a;
  --lab-action: #ffd803;
  --lab-section: #e3f6f5;
  --lab-accent-soft: #bae8e8;

  /* Web 品牌亮色：粉色承接危险动作，浅蓝承接信息与辅助层级。 */
  --lab-pink: #ff8ba7;
  --lab-pink-soft: #fff0f4;
  --lab-info: #3f7185;
  --lab-info-soft: var(--lab-section);
  --lab-info-border: var(--lab-accent-soft);

  /* 功能色只用于小面积状态反馈 */
  --lab-danger: #b3365a;
  --lab-danger-fill: var(--lab-pink);
  --lab-danger-hover: #f67899;
  --lab-danger-soft: var(--lab-pink-soft);
  --lab-success: #1f7a55;
  --lab-success-soft: #edf8f3;
  --lab-warning: #8a5a00;
  --lab-warning-soft: #fff8d6;

  /* 派生表面：黑白承担结构，蓝色只保留给小面积识别 */
  --lab-canvas: #f1f4f5;
  --lab-surface: var(--lab-bg);
  --lab-surface-subtle: #f7f7f9;
  --lab-surface-muted: #ececf1;
  --lab-border: rgba(39, 35, 67, 0.14);
  --lab-border-strong: var(--lab-ink);
  --lab-text-muted: rgba(45, 51, 74, 0.72);
  --lab-overlay: rgba(39, 35, 67, 0.58);

  /* 字体 */
  --lab-font-body: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --lab-font-display: "Playfair Display", Georgia, serif;
  --lab-font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --lab-type-prose-size: 14px;
  --lab-type-prose-line: 1.82;
  --lab-type-meta-size: 12px;
  --lab-type-meta-line: 1.65;
  --lab-type-code-size: 11px;
  --lab-type-code-line: 1.65;

  /* 间距：4px 基础刻度 */
  --lab-space-1: 4px;
  --lab-space-2: 8px;
  --lab-space-3: 12px;
  --lab-space-4: 16px;
  --lab-space-5: 20px;
  --lab-space-6: 24px;
  --lab-space-8: 32px;
  --lab-space-10: 40px;
  --lab-space-12: 48px;

  /* 形状与层级 */
  --lab-radius-sm: 8px;
  --lab-radius-md: 14px;
  --lab-radius-lg: 18px;
  --lab-shadow-sm: 0 1px 2px rgba(39, 35, 67, 0.06), 0 7px 20px rgba(39, 35, 67, 0.06);
  --lab-shadow-md: 0 2px 4px rgba(39, 35, 67, 0.08), 0 16px 38px rgba(39, 35, 67, 0.12);

  /* 桌面工作台 */
  --lab-shell-width: 220px;
  --lab-content-max: 1560px;
  --lab-control-height: 40px;
  --lab-transition: 160ms ease;

  /* 旧 Lab 页面兼容接口；页面迁移后逐步移除旧命名。 */
  --tk-surface: var(--lab-bg);
  --tk-surface-cream: var(--lab-surface-subtle);
  --tk-surface-alt: var(--lab-surface-muted);
  --tk-accent: var(--lab-ink);
  --tk-accent-hover: var(--lab-text);
  --tk-text: var(--lab-ink);
  --tk-text-secondary: var(--lab-text);
  --tk-text-muted: var(--lab-text-muted);
  --tk-lavender: var(--lab-accent-soft);
  --tk-gold: var(--lab-action);
  --tk-success: var(--lab-success);
  --tk-warning: var(--lab-warning);
  --tk-error: var(--lab-danger);
  --tk-border: var(--lab-border);
  --tk-radius: var(--lab-radius-sm);
  --tk-radius-card: var(--lab-radius-md);
  --tk-shadow-card: var(--lab-shadow-sm);
  --tk-shadow-card-hover: var(--lab-shadow-md);
  --font-sans: var(--lab-font-body);
  --font-serif: var(--lab-font-display);
}

/* ── 卡片语义分层：内容 → 状态 → 操作 ── */
.lab-card-status-row {
  display: flex;
  align-items: center;
  gap: var(--lab-space-2);
  min-height: 26px;
  margin-top: var(--lab-space-3);
}

.lab-card-status-label {
  color: var(--lab-info);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.lab-card-action-row {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--lab-space-2);
  margin-top: var(--lab-space-3);
  padding-top: var(--lab-space-3);
  border-top: 1px solid var(--lab-border);
}

/* ── 长文本阅读：元数据保持紧凑，连续正文进入独立阅读面 ── */
.lab-reading-stack {
  display: grid;
  gap: var(--lab-space-4);
}

.lab-locale-section {
  padding: var(--lab-space-5);
  border: 1px solid var(--lab-border);
  border-radius: var(--lab-radius-md);
  background: var(--lab-bg);
}

.lab-locale-heading {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 4px 10px;
  border-left: 4px solid var(--lab-action);
  border-radius: var(--lab-radius-sm);
  color: var(--lab-bg);
  background: var(--lab-ink);
  font-size: 13px;
  font-weight: 750;
  letter-spacing: 0.02em;
}

.lab-field-list {
  display: grid;
  gap: 0;
  margin-top: var(--lab-space-3);
}

.lab-field-row {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr);
  gap: var(--lab-space-4);
  padding: 10px 12px;
  border-top: 1px solid var(--lab-border);
}

.lab-field-row:first-child {
  border-top: 0;
}

.lab-field-row.is-prose {
  grid-template-columns: minmax(0, 1fr);
  gap: var(--lab-space-2);
  margin-top: var(--lab-space-2);
  padding: var(--lab-space-4);
  border: 1px solid var(--lab-border);
  border-radius: var(--lab-radius-sm);
  background: var(--lab-surface-subtle);
}

.lab-field-key {
  color: var(--lab-info);
  font: 650 12px/1.6 var(--lab-font-mono);
}

.lab-field-value {
  min-width: 0;
  color: var(--lab-text);
  overflow-wrap: anywhere;
  white-space: pre-wrap;
}

.lab-field-value.empty {
  color: var(--lab-text-muted);
  font-style: italic;
}

.lab-prose {
  max-width: 78ch;
  color: var(--lab-text);
  font-family: var(--lab-font-body);
  font-size: var(--lab-type-prose-size);
  line-height: var(--lab-type-prose-line);
  overflow-wrap: anywhere;
  white-space: pre-wrap;
  text-wrap: pretty;
}

.lab-readable {
  color: var(--lab-text);
  font-family: var(--lab-font-body);
  font-size: var(--lab-type-prose-size);
  line-height: var(--lab-type-prose-line);
  overflow-wrap: anywhere;
  white-space: pre-wrap;
  text-wrap: pretty;
}

.lab-readable-compact {
  color: var(--lab-text-muted);
  font-family: var(--lab-font-body);
  font-size: var(--lab-type-meta-size);
  line-height: var(--lab-type-meta-line);
  overflow-wrap: anywhere;
  white-space: pre-wrap;
}

.lab-technical {
  font-family: var(--lab-font-mono);
  font-size: var(--lab-type-code-size);
  line-height: var(--lab-type-code-line);
  overflow-wrap: anywhere;
  white-space: pre-wrap;
}

.lab-prose-surface {
  padding: var(--lab-space-4);
  border: 1px solid var(--lab-border);
  border-radius: var(--lab-radius-sm);
  background: var(--lab-surface-subtle);
}

/* ── 小型组件：同一尺度，不混淆状态、元数据、步骤与动作 ── */
.lab-badge {
  min-height: 32px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 11px;
  border: 1px solid var(--lab-border);
  border-radius: var(--lab-radius-sm);
  color: var(--lab-text);
  background: var(--lab-bg);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.2;
  white-space: nowrap;
}

.lab-badge.lab-badge-progress {
  border-color: rgba(31, 122, 85, 0.28);
  color: var(--lab-success);
  background: var(--lab-success-soft);
}

.lab-badge.lab-badge-progress.fail {
  border-color: color-mix(in srgb, var(--lab-danger) 30%, transparent);
  color: var(--lab-danger);
  background: var(--lab-danger-soft);
}

.lab-badge.lab-badge-meta {
  border-color: var(--lab-info-border);
  color: var(--lab-info);
  background: var(--lab-info-soft);
}

.lab-badge.lab-badge-status {
  border-color: transparent;
}

.lab-compact-action {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 14px;
  border: 1px solid var(--lab-border);
  border-radius: var(--lab-radius-sm);
  color: var(--lab-ink);
  background: var(--lab-bg);
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
}

.lab-compact-action:hover {
  border-color: var(--lab-ink);
  background: var(--lab-surface-subtle);
  text-decoration: none;
}

.lab-compact-action:is(.danger, .btn-delete) {
  color: var(--lab-danger);
}

.lab-compact-action:is(.danger, .btn-delete):hover {
  border-color: var(--lab-danger);
  color: var(--lab-ink);
  background: var(--lab-danger-fill);
}

.lab-card-action-row .lab-compact-action {
  min-height: 38px;
  padding: 0 14px;
  font-size: 13px;
}

.lab-step-control {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  padding: 0 18px;
  border: 1px solid var(--lab-border);
  border-radius: 10px;
  color: var(--lab-text-muted);
  background: var(--lab-bg);
  font-size: 14px;
  font-weight: 700;
}

.lab-step-control.active {
  border-color: var(--lab-ink);
  color: var(--lab-bg);
  background: var(--lab-ink);
  box-shadow: inset 0 -3px 0 var(--lab-action);
}

.lab-step-control.done {
  border-color: var(--lab-success);
  color: var(--lab-success);
  background: var(--lab-bg);
}

.lab-meta-list {
  width: 100%;
  display: grid;
  gap: 0;
}

.lab-meta-list .lab-meta-row {
  width: 100%;
  min-height: 44px;
  display: flex;
  align-items: center;
  padding: 9px 0;
  border: 0;
  border-bottom: 1px solid var(--lab-border);
  border-radius: 0;
  color: var(--lab-text);
  background: transparent;
  font-size: 14px;
}

.lab-meta-list .lab-meta-row:last-child {
  border-bottom: 0;
}

/* ── 统一选中态：深色实心 + 明示勾选 + 黄色点睛 ── */
body[data-lab-ui="ready"] :is(
  .creator-card.selected,
  .style-card.selected,
  .select-card.selected,
  .tpl-card.selected
) {
  position: relative;
  border-color: var(--lab-ink) !important;
  outline: 3px solid var(--lab-action);
  outline-offset: 0;
  background: var(--lab-bg) !important;
  box-shadow: var(--lab-shadow-md) !important;
  opacity: 1 !important;
}

body[data-lab-ui="ready"] :is(
  .creator-card.selected::after,
  .style-card.selected::after,
  .select-card.selected::after,
  .tpl-card.selected::after
) {
  content: "✓ 已选择" !important;
  position: absolute !important;
  top: 12px !important;
  right: 12px !important;
  z-index: 8;
  width: auto !important;
  min-width: 76px;
  height: 30px !important;
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  padding: 0 10px !important;
  border: 1px solid var(--lab-ink);
  border-bottom: 3px solid var(--lab-action);
  border-radius: var(--lab-radius-sm) !important;
  color: var(--lab-bg) !important;
  background: var(--lab-ink) !important;
  box-shadow: 0 4px 12px rgba(39, 35, 67, 0.24);
  font: 750 12px/1 var(--lab-font-body) !important;
  letter-spacing: 0.2px;
  pointer-events: none;
}

body[data-lab-ui="ready"] :is(
  .mode-card.active,
  .age-btn.selected,
  .bp-option.selected,
  .version.selected,
  .round-nav button.active,
  .nav-item.active,
  .subtab.active,
  .record-tab.active,
  .asset-tab.active,
  .version-chip.selected,
  .model-card.selected,
  .pws-tlist button.active,
  .pws-slist > [aria-current="page"],
  .quick-nav-link[aria-current="location"]
) {
  border-color: var(--lab-ink) !important;
  color: var(--lab-bg) !important;
  background: var(--lab-ink) !important;
  box-shadow: inset 0 -3px 0 var(--lab-action) !important;
  opacity: 1 !important;
}

body[data-lab-ui="ready"] :is(
  .mode-card.active,
  .age-btn.selected,
  .bp-option.selected,
  .version.selected,
  .round-nav button.active,
  .nav-item.active,
  .subtab.active,
  .record-tab.active,
  .asset-tab.active,
  .version-chip.selected,
  .model-card.selected,
  .pws-tlist button.active,
  .pws-slist > [aria-current="page"],
  .quick-nav-link[aria-current="location"]
)::before {
  content: "✓";
  margin-right: 6px;
  color: var(--lab-action);
  font-weight: 800;
}

body[data-lab-ui="ready"] :is(
  .mode-card.active span,
  .version.selected .meta,
  .round-nav button.active small,
  .pws-tlist button.active small,
  .pws-slist > [aria-current="page"] small
) {
  color: rgba(255, 255, 254, 0.76) !important;
}

/* 版本树副标题必须跟随深色选中态；直接子选择器避免组合 :is() 被页面样式覆盖。 */
body[data-lab-ui="ready"] .version-chip.selected > .version-caption {
  color: rgba(255, 255, 254, 0.82) !important;
  -webkit-text-fill-color: rgba(255, 255, 254, 0.82) !important;
  opacity: 1 !important;
}

body[data-lab-ui="ready"] :is(
  .asset-tab.active .asset-tab-count,
  .quick-nav-link[aria-current="location"] .q-count,
  .version.selected .active-badge
) {
  color: var(--lab-ink) !important;
  background: var(--lab-action) !important;
}

body[data-lab-ui="ready"] .round-card.active {
  border-color: var(--lab-ink) !important;
  background: var(--lab-bg) !important;
  box-shadow: 0 0 0 3px var(--lab-action), var(--lab-shadow-md) !important;
}

body[data-lab-ui="ready"] .round-card.active::before {
  content: "✓ 当前选中" !important;
  color: var(--lab-bg) !important;
  background: var(--lab-ink) !important;
  border-bottom: 3px solid var(--lab-action);
}

body[data-lab-ui="ready"] .snapshot-card.selected > summary {
  color: var(--lab-bg);
  background: var(--lab-ink);
  box-shadow: inset 0 -3px 0 var(--lab-action);
}

body[data-lab-ui="ready"] .snapshot-card.selected > summary::before {
  content: "✓ 已选择";
  color: var(--lab-action);
  font-size: 12px;
  font-weight: 750;
}

body[data-lab-ui="ready"] .snapshot-card.selected > summary::after {
  color: rgba(255, 255, 254, 0.76);
}

body[data-lab-ui="ready"] .storyline-item.active::after {
  content: "✓";
  position: absolute;
  top: 4px;
  right: 4px;
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  border-radius: 6px;
  color: var(--lab-action);
  background: var(--lab-ink);
  font-size: 11px;
  font-weight: 800;
}

/* 清理旧工作台中曾经承担大面积分区的蓝色；聊天气泡和标签仍可保留蓝色识别。 */
body[data-lab-ui="ready"] :is(
  .dialogue-panel-head,
  .dialogue-panel .dialog-settings,
  .dialogue-panel .dialogue-thread,
  .dialogue-panel .gate,
  .dialogue-settings,
  .thread,
  .creator-reference,
  .style-card .thumbs,
  .diff-item
) {
  border-color: var(--lab-border);
  background: var(--lab-surface-subtle);
}

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

html {
  min-width: 1280px;
  background: var(--lab-canvas);
  color: var(--lab-text);
}

body {
  font-family: var(--lab-font-body);
  color: var(--lab-text);
  background: var(--lab-bg);
}

body[data-lab-mode="workspace"] {
  background: var(--lab-canvas);
}

/* 必须压过旧页面自己的 .header { display:flex }，避免双导航并存。 */
.lab-legacy-header-hidden {
  display: none !important;
}

body[data-lab-ui="ready"]::before {
  background-image: none !important;
}

body[data-lab-mode="auth"] {
  padding-top: 58px;
}

body[data-lab-ui="ready"] :is(
  .avatar-ph,
  .artist-avatar-ph,
  .artist-mini-avatar-ph,
  .avatar-empty,
  .card-avatar-ph,
  .c-avatar-ph,
  .creator-avatar-fallback,
  .reviewer-avatar-fallback
) {
  color: var(--lab-ink);
  background: var(--lab-surface-muted);
}

button,
input,
select,
textarea {
  font: inherit;
}

a {
  color: var(--lab-ink);
}

:where(button, a, input, select, textarea, [tabindex]):focus-visible {
  outline: 2px solid var(--lab-ink);
  outline-offset: 2px;
  box-shadow: 0 0 0 3px var(--lab-action);
}

::selection {
  color: var(--lab-ink);
  background: var(--lab-action);
}

.lab-surface {
  background: var(--lab-surface);
  border: 1px solid var(--lab-border);
  border-radius: var(--lab-radius-md);
  box-shadow: var(--lab-shadow-sm);
}

.lab-section-surface {
  background: var(--lab-surface-subtle);
  border: 1px solid var(--lab-border);
  border-radius: var(--lab-radius-md);
}

.lab-eyebrow {
  margin: 0 0 var(--lab-space-2);
  color: var(--lab-text);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.lab-heading {
  margin: 0;
  color: var(--lab-ink);
  font-family: var(--lab-font-display);
  line-height: 1.2;
}

.lab-muted {
  color: var(--lab-text-muted);
}

.lab-tag {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 3px 8px;
  border: 1px solid var(--lab-border);
  border-radius: var(--lab-radius-sm);
  color: var(--lab-ink);
  background: var(--lab-accent-soft);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.3;
}

.lab-control {
  min-height: var(--lab-control-height);
  border: 1px solid var(--lab-border);
  border-radius: var(--lab-radius-sm);
  color: var(--lab-text);
  background: var(--lab-surface);
}

.lab-control:hover {
  border-color: var(--lab-ink);
}

.lab-control:disabled {
  color: var(--lab-text-muted);
  background: var(--lab-surface-muted);
  cursor: not-allowed;
  opacity: 0.65;
}

.lab-empty,
.lab-loading,
.lab-error {
  padding: var(--lab-space-8);
  border: 1px solid var(--lab-border);
  border-radius: var(--lab-radius-md);
  text-align: center;
}

.lab-empty,
.lab-loading {
  color: var(--lab-text);
  background: var(--lab-surface-subtle);
}

.lab-error {
  color: var(--lab-danger);
  background: var(--lab-danger-soft);
}

.lab-visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ── 统一确认弹窗 ── */
.lab-confirm-overlay {
  position: fixed;
  inset: 0;
  z-index: 10050;
  display: grid;
  place-items: center;
  padding: var(--lab-space-6);
  background: var(--lab-overlay);
}

.lab-confirm-dialog {
  width: min(440px, calc(100vw - 48px));
  padding: var(--lab-space-6);
  border: 1px solid var(--lab-border);
  border-radius: var(--lab-radius-md);
  color: var(--lab-text);
  background: var(--lab-bg);
  box-shadow: var(--lab-shadow-md);
}

.lab-confirm-eyebrow {
  margin: 0 0 var(--lab-space-2);
  color: var(--lab-warning);
  font-size: 12px;
  font-weight: 750;
}

.lab-confirm-dialog[data-danger="true"] .lab-confirm-eyebrow {
  color: var(--lab-danger);
}

.lab-confirm-title {
  margin: 0;
  color: var(--lab-ink);
  font-family: var(--lab-font-display);
  font-size: 20px;
  line-height: 1.3;
}

.lab-confirm-message {
  margin: var(--lab-space-3) 0 0;
  color: var(--lab-text);
  font-size: 13px;
  line-height: 1.65;
  white-space: pre-wrap;
}

.lab-prompt-input {
  width: 100%;
  min-height: var(--lab-control-height);
  margin-top: var(--lab-space-4);
  padding: 8px 10px;
  border: 1px solid var(--lab-border);
  border-radius: var(--lab-radius-sm);
  color: var(--lab-text);
  background: var(--lab-bg);
}

.lab-prompt-input:hover,
.lab-prompt-input:focus { border-color: var(--lab-ink); }

.lab-model-confirm-dialog {
  width: min(900px, calc(100vw - 32px));
  max-height: calc(100vh - 32px);
  overflow-y: auto;
}

.lab-model-confirm-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--lab-space-3);
  margin-top: var(--lab-space-4);
}

.lab-model-confirm-field {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: var(--lab-space-4);
  border: 1px solid var(--lab-border);
  border-radius: var(--lab-radius-md);
  background: var(--lab-bg);
  box-shadow: 0 8px 24px rgba(31, 27, 55, 0.05);
}

.lab-model-confirm-field:last-child:nth-child(odd) {
  grid-column: 1 / -1;
}

.lab-model-confirm-card-header {
  display: flex;
  min-width: 0;
  align-items: center;
  justify-content: space-between;
  gap: var(--lab-space-3);
  margin-bottom: var(--lab-space-3);
}

.lab-model-confirm-tags {
  display: flex;
  min-width: 0;
  flex-wrap: wrap;
  gap: 6px;
}

.lab-model-confirm-tag {
  display: inline-flex;
  align-items: center;
  min-height: 22px;
  padding: 2px 8px;
  border: 1px solid var(--lab-info-border);
  border-radius: 999px;
  color: var(--lab-info);
  background: var(--lab-info-soft);
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 0.04em;
}

.lab-model-confirm-head {
  margin: 0;
  color: var(--lab-ink);
  font-family: var(--lab-font-display);
  font-size: 18px;
  font-weight: 750;
  line-height: 1.3;
}

.lab-model-confirm-description {
  min-height: 3.1em;
  margin: var(--lab-space-2) 0 0;
  color: var(--lab-text);
  font-size: 12px;
  line-height: 1.55;
}

.lab-model-confirm-fallback {
  display: flex;
  align-items: center;
  gap: 7px;
  margin: var(--lab-space-3) 0 0;
  color: var(--lab-muted);
  font-size: 11px;
  line-height: 1.45;
}

.lab-model-confirm-fallback::before {
  width: 6px;
  height: 6px;
  flex: 0 0 6px;
  border-radius: 50%;
  background: var(--lab-action);
  content: '';
}

.lab-model-confirm-key {
  min-width: 0;
  overflow: hidden;
  color: var(--lab-muted);
  font-family: var(--lab-font-mono);
  font-size: 11px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lab-model-confirm-control {
  display: grid;
  gap: 7px;
  margin-top: auto;
  padding-top: var(--lab-space-4);
}

.lab-model-confirm-select-label {
  color: var(--lab-ink);
  font-size: 11px;
  font-weight: 750;
}

.lab-model-confirm-select {
  width: 100%;
  min-height: 38px;
  padding: 7px 10px;
  border: 1px solid var(--lab-border);
  border-radius: var(--lab-radius-sm);
  color: var(--lab-text);
  background: var(--lab-bg);
}

@media (max-width: 720px) {
  .lab-model-confirm-dialog {
    width: min(calc(100% - 20px), 560px);
    max-height: calc(100vh - 20px);
    padding: var(--lab-space-5);
  }

  .lab-model-confirm-fields { grid-template-columns: 1fr; }
  .lab-model-confirm-field:last-child:nth-child(odd) { grid-column: auto; }
  .lab-model-confirm-description { min-height: 0; }
  .lab-model-confirm-card-header { align-items: flex-start; }
}

.lab-confirm-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--lab-space-2);
  margin-top: var(--lab-space-6);
}

.lab-confirm-button {
  min-height: 38px;
  padding: 8px 16px;
  border: 1px solid var(--lab-ink);
  border-radius: var(--lab-radius-sm);
  color: var(--lab-ink);
  background: var(--lab-bg);
  font-weight: 700;
  cursor: pointer;
}

.lab-confirm-button:hover { background: var(--lab-surface-subtle); }
.lab-confirm-button.primary { color: var(--lab-bg); background: var(--lab-ink); }
.lab-confirm-button.primary:hover { background: var(--lab-text); }
.lab-confirm-button.danger { border-color: var(--lab-danger); color: var(--lab-ink); background: var(--lab-danger-fill); }
.lab-confirm-button.danger:hover { background: var(--lab-danger-hover); }

/* ── 非阻断消息提示 ── */
.lab-toast-stack {
  position: fixed;
  right: var(--lab-space-6);
  bottom: var(--lab-space-6);
  z-index: 10040;
  width: min(400px, calc(100vw - 48px));
  display: grid;
  gap: var(--lab-space-2);
}

.lab-toast {
  padding: 12px 14px;
  border: 1px solid var(--lab-border);
  border-left: 4px solid var(--lab-ink);
  border-radius: var(--lab-radius-sm);
  color: var(--lab-text);
  background: var(--lab-bg);
  box-shadow: var(--lab-shadow-md);
  font-size: 13px;
  line-height: 1.55;
  white-space: pre-wrap;
}

.lab-toast[data-type="success"] { border-left-color: var(--lab-success); background: var(--lab-success-soft); }
.lab-toast[data-type="warning"] { border-left-color: var(--lab-warning); background: var(--lab-warning-soft); }
.lab-toast[data-type="danger"] { border-left-color: var(--lab-danger); background: var(--lab-danger-soft); }

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

/* ── 单一全局导航：页名 / 一级导航 / 当前页操作 ── */
.lab-global-bar {
  position: sticky;
  top: 0;
  z-index: 900;
  min-height: 72px;
  display: grid;
  grid-template-columns: minmax(220px, auto) auto minmax(0, 1fr);
  align-items: center;
  gap: var(--lab-space-8);
  padding: 0 var(--lab-space-8);
  border-bottom: 1px solid var(--lab-border);
  color: var(--lab-text);
  background: rgba(255, 255, 254, 0.97);
  box-shadow: 0 1px 0 rgba(39, 35, 67, 0.04), 0 6px 20px rgba(39, 35, 67, 0.05);
}

.lab-global-bar::after {
  content: "";
  position: absolute;
  left: var(--lab-space-8);
  bottom: -1px;
  width: 36px;
  height: 3px;
  border-radius: 3px 0 0 0;
  background: var(--lab-action);
  box-shadow: 36px 0 0 var(--lab-accent-soft), 72px 0 0 var(--lab-pink);
}

.lab-global-identity {
  min-width: 0;
  display: inline-flex;
  align-items: center;
  gap: var(--lab-space-3);
}

.lab-global-home {
  width: 22px;
  height: 38px;
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  color: var(--lab-ink);
  text-decoration: none;
}

.lab-global-page-title {
  overflow: hidden;
  color: var(--lab-ink);
  font-family: var(--lab-font-display);
  font-size: 20px;
  font-weight: 700;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.lab-global-page-meta {
  flex: 0 0 auto;
  padding: 3px 8px;
  border: 1px solid var(--lab-info-border);
  border-radius: 999px;
  color: var(--lab-info);
  background: var(--lab-info-soft);
  font: 600 12px/1.4 var(--lab-font-body);
  letter-spacing: 0;
}

.lab-global-brand-mark {
  width: 14px;
  height: 14px;
  border: 2px solid var(--lab-ink);
  background: var(--lab-action);
  transform: rotate(45deg);
}

.lab-global-nav {
  display: flex;
  align-self: stretch;
  align-items: center;
  gap: var(--lab-space-2);
  justify-self: start;
}

.lab-global-nav a {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  padding: 0 var(--lab-space-4);
  border: 1px solid transparent;
  border-radius: var(--lab-radius-sm);
  color: var(--lab-text);
  font-size: 15px;
  font-weight: 650;
  text-decoration: none;
  transition: background var(--lab-transition), border-color var(--lab-transition);
}

.lab-global-nav a:hover {
  border-color: var(--lab-border);
  background: var(--lab-surface-subtle);
}

.lab-global-nav a[aria-current="page"] {
  border-color: var(--lab-ink);
  border-bottom-color: var(--lab-action);
  border-radius: var(--lab-radius-sm);
  color: var(--lab-bg);
  background: var(--lab-ink);
  box-shadow: inset 0 -3px 0 var(--lab-action);
}

.lab-global-actions {
  min-width: 0;
  display: flex;
  justify-content: safe flex-end;
  align-items: center;
  gap: var(--lab-space-2);
  justify-self: stretch;
  flex-wrap: wrap;
  padding-block: var(--lab-space-2);
  white-space: normal;
}

.lab-global-actions-group {
  display: contents !important;
}

.lab-global-back,
[data-lab-back] {
  flex: 0 0 auto;
  order: 999;
}

.lab-global-bar .lab-global-actions :is(a, button) {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  padding: 0 var(--lab-space-4);
  border: 1px solid var(--lab-border);
  border-radius: var(--lab-radius-sm);
  color: var(--lab-ink);
  background: var(--lab-bg);
  font-size: 13px;
  font-weight: 650;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
}

.lab-global-bar .lab-global-actions :is(a, button):hover:not(:disabled) {
  border-color: var(--lab-ink);
  background: var(--lab-surface-subtle);
}

.lab-global-bar .lab-global-actions :is(.danger, .btn-danger, .c-btn-danger) {
  border-color: var(--lab-danger);
  color: var(--lab-danger);
}

.lab-global-bar .lab-global-actions :is(.danger, .btn-danger, .c-btn-danger):hover:not(:disabled) {
  border-color: var(--lab-danger);
  color: var(--lab-ink);
  background: var(--lab-danger-fill);
}

.lab-global-bar .lab-global-actions :is(.primary, .btn-primary) {
  border-color: var(--lab-ink);
  color: var(--lab-bg);
  background: var(--lab-ink);
  box-shadow: inset 0 -2px 0 var(--lab-action);
}

.lab-global-bar .lab-global-actions :is(.primary, .btn-primary):hover:not(:disabled) {
  border-color: var(--lab-text);
  color: var(--lab-bg);
  background: var(--lab-text);
}

.lab-global-bar[data-mode="auth"] {
  position: fixed;
  right: 0;
  left: 0;
  grid-template-columns: 1fr auto;
}

.lab-global-bar[data-mode="auth"] .lab-global-nav,
.lab-global-bar[data-mode="immersive"] .lab-global-nav {
  display: none;
}

.lab-global-bar[data-mode="immersive"] {
  position: fixed;
  top: var(--lab-space-3);
  left: var(--lab-space-3);
  width: auto;
  min-height: 42px;
  grid-template-columns: auto auto;
  padding: 0 var(--lab-space-3);
  border: 1px solid var(--lab-border);
  border-radius: var(--lab-radius-md);
  box-shadow: var(--lab-shadow-md);
}

.lab-global-bar[data-mode="immersive"] .lab-global-page-title {
  font-size: 14px;
}

.lab-global-bar[data-mode="immersive"] .lab-global-brand-mark {
  width: 9px;
  height: 9px;
}

/* ── 统一任务进度条（LabUI.progress） ── */

.lab-progress {
  display: grid;
  gap: 6px;
  margin-top: 10px;
}

.lab-progress-track {
  height: 8px;
  overflow: hidden;
  border: 1px solid var(--lab-border);
  border-radius: 999px;
  background: var(--lab-surface-muted);
}

.lab-progress-fill {
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: var(--lab-action);
  transition: width 0.4s ease;
}

.lab-progress[data-mode="indeterminate"] .lab-progress-fill {
  width: 34%;
  animation: lab-progress-slide 1.2s ease-in-out infinite;
}

.lab-progress[data-failed="true"] .lab-progress-fill {
  background: linear-gradient(90deg, var(--lab-action), var(--lab-pink));
}

.lab-progress[data-state="success"] .lab-progress-fill {
  background: var(--lab-success);
}

.lab-progress[data-state="failed"] .lab-progress-fill {
  background: var(--lab-danger-fill);
}

.lab-progress-label {
  margin: 0;
  color: var(--lab-text);
  font-size: 12px;
}

.lab-progress[data-state="failed"] .lab-progress-label {
  color: var(--lab-danger);
}

@keyframes lab-progress-slide {
  0% { margin-left: -34%; }
  100% { margin-left: 100%; }
}

/* 全局悬浮进度层：不传 container 时挂这里，任何滚动位置都可见；避开右下角 toast */
.lab-progress-dock {
  position: fixed;
  right: var(--lab-space-6);
  bottom: calc(var(--lab-space-6) + 76px);
  z-index: 10030;
  width: min(340px, calc(100vw - 48px));
  display: grid;
  gap: var(--lab-space-2);
}

.lab-progress[data-floating="true"] {
  margin-top: 0;
  padding: 14px 16px 13px;
  border: 1px solid var(--lab-border);
  border-radius: var(--lab-radius-md);
  background: var(--lab-bg);
  box-shadow: var(--lab-shadow-md);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.22s ease-out, transform 0.22s ease-out;
}

.lab-progress[data-floating="true"][data-entered="true"] {
  opacity: 1;
  transform: none;
}

.lab-progress-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}

.lab-progress-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--lab-text-muted, rgba(45, 51, 74, 0.62));
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.lab-progress-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--lab-action);
  animation: lab-progress-breathe 1.6s ease-in-out infinite;
}

.lab-progress[data-state="success"] .lab-progress-dot {
  background: var(--lab-success);
  animation: none;
}

.lab-progress[data-state="failed"] .lab-progress-dot {
  background: var(--lab-danger-fill);
  animation: none;
}

.lab-progress-count {
  color: var(--lab-ink);
  font-size: 13px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.lab-progress-heading {
  margin: 6px 0 10px;
  color: var(--lab-ink);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.35;
}

.lab-progress[data-floating="true"] .lab-progress-track {
  height: 6px;
  border: 0;
  background: var(--lab-surface-muted);
}

.lab-progress[data-floating="true"] .lab-progress-label {
  margin-top: 7px;
  color: var(--lab-text-muted, rgba(45, 51, 74, 0.62));
}

@keyframes lab-progress-breathe {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}