/* PBL 教师创建副本 · 关卡编排重构 */
.pbl-create-stepbar {
  flex-shrink: 0;
  display: flex;
  justify-content: center;
  padding: 0;
}
.pbl-create-steps--topbar,
.pbl-create-steps--center {
  margin: 0;
  max-width: 520px;
  width: 100%;
  justify-content: center;
}
.pbl-create-steps--topbar {
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(248, 250, 252, 0.92);
  border: 1px solid rgba(82, 109, 255, 0.14);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
}
.pbl-create-steps--topbar .pbl-create-steps__item {
  padding: 7px 14px;
  font-size: 16px;
  font-weight: 650;
  border-radius: 999px;
  transition: background 0.15s, color 0.15s, box-shadow 0.15s;
}
.pbl-create-steps--topbar .pbl-create-steps__num {
  width: 26px;
  height: 26px;
  font-size: 13px;
}
.pbl-create-steps--topbar .pbl-create-steps__item.is-current {
  background: #526dff;
  color: #fff;
  box-shadow: 0 2px 12px rgba(82, 109, 255, 0.38);
}
.pbl-create-steps--topbar .pbl-create-steps__item.is-current .pbl-create-steps__num {
  background: rgba(255, 255, 255, 0.28);
  color: #fff;
}
.pbl-create-steps--topbar .pbl-create-steps__item.is-done:not(.is-current) {
  color: #334155;
}
.pbl-create-steps--topbar .pbl-create-steps__item.is-done:not(.is-current) .pbl-create-steps__num {
  background: #22c55e;
  color: #fff;
}
.pbl-create-steps--topbar .pbl-create-steps__line {
  flex: 0 0 16px;
  max-width: 24px;
}
.pbl-create-stepbar-slot-fallback .admin-mode-bar--fallback {
  width: 100%;
  max-width: 720px;
  margin: 0 auto 10px;
}
.pbl-create-stepbar-slot-fallback .admin-mode-bar--fallback .admin-mode-switch__desc {
  display: none !important;
}
.pbl-create-stepbar-slot-fallback .admin-mode-bar--fallback .admin-mode-switch__track {
  min-height: 56px;
  padding: 4px;
  border-radius: 999px;
  border: 1px solid rgba(82, 109, 255, 0.14);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
  background: rgba(248, 250, 252, 0.92);
}
.pbl-create-stepbar-slot-fallback .admin-mode-bar--fallback .admin-mode-switch__thumb {
  border-radius: 999px;
  background: #526dff;
  box-shadow: 0 2px 12px rgba(82, 109, 255, 0.38);
}
.pbl-create-stepbar-slot-fallback .admin-mode-bar--fallback .admin-mode-switch__btn {
  min-height: 48px;
  padding: 8px 18px;
  border-radius: 999px;
}
.pbl-create-stepbar-slot-fallback .admin-mode-bar--fallback .admin-mode-switch__label {
  font-size: 17px;
  font-weight: 800;
}
.pbl-create-stepbar-slot-fallback .admin-mode-bar--fallback .admin-mode-switch__sub {
  display: block !important;
  font-size: 13px;
  line-height: 1.35;
}
.pbl-create-stepbar-slot-fallback .admin-mode-bar--fallback .admin-mode-switch__icon {
  font-size: 22px;
}
.pbl-create-steps--center .pbl-create-steps__line {
  flex: 1 1 24px;
  max-width: 48px;
}
.pbl-create-steps {
  display: flex;
  align-items: center;
  gap: 0;
  margin: 0 0 16px;
  padding: 10px 14px;
  border-radius: 14px;
  background: linear-gradient(135deg, #f8fafc 0%, #eef3ff 100%);
  border: 1px solid rgba(82, 109, 255, 0.12);
}
.pbl-create-steps__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border: 0;
  background: transparent;
  border-radius: 10px;
  cursor: pointer;
  font: inherit;
  color: var(--muted, #64748b);
}
.pbl-create-steps__item.is-current {
  background: #fff;
  color: var(--ink, #0f172a);
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.08);
}
.pbl-create-steps__item.is-done .pbl-create-steps__num {
  background: #22c55e;
  color: #fff;
}
.pbl-create-steps__num {
  width: 22px;
  height: 22px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 800;
  background: rgba(100, 116, 139, 0.15);
}
.pbl-create-steps__line {
  flex: 0 0 28px;
  height: 2px;
  background: rgba(82, 109, 255, 0.2);
  margin: 0 4px;
}
.pbl-template-banner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin: 12px 0 0;
  padding: 14px 16px;
  border-radius: 14px;
  background: linear-gradient(135deg, #fff7ed 0%, #fff 55%);
  border: 1px solid rgba(249, 115, 22, 0.25);
}
.pbl-template-banner__body strong {
  display: block;
  margin-bottom: 4px;
}
.pbl-template-banner__actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex-shrink: 0;
}
.pbl-current-level {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
  flex: 1 1 auto;
}
.pbl-current-level__title {
  font-size: 15px;
  font-weight: 650;
  line-height: 1.35;
  color: #0f172a;
}
#view-admin .pbl-orchestrate-task-compact__meta {
  font-size: 12px;
  color: var(--muted, #64748b);
}
#view-admin .pbl-orchestrate-task-compact__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 16px;
}
.pbl-orchestrate-layout {
  display: grid;
  grid-template-columns: minmax(220px, 280px) minmax(0, 1fr);
  gap: 16px;
  align-items: stretch;
  margin-top: 12px;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}
.pbl-orchestrate-layout:has(#pbl-level-guide-toc:not([hidden])) {
  grid-template-columns: minmax(220px, 280px) minmax(168px, 200px) minmax(0, 1fr);
}
.pbl-level-guide-toc {
  display: flex;
  flex-direction: column;
  min-height: 0;
  min-width: 0;
  padding: 12px 10px;
  border-radius: 14px;
  background: #fff;
  border: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: 0 4px 18px rgba(15, 23, 42, 0.04);
  overflow: hidden;
}
.pbl-level-guide-toc[hidden] {
  display: none !important;
}
.pbl-level-guide-toc__head {
  flex-shrink: 0;
  margin-bottom: 4px;
}
.pbl-level-guide-toc__title {
  margin: 0;
  font-size: 14px;
  font-weight: 800;
  color: #0f172a;
}
.pbl-level-guide-toc__meta {
  margin: 4px 0 0;
  font-size: 12px;
  line-height: 1.4;
}
.pbl-level-guide-toc__hint {
  flex-shrink: 0;
  margin: 0 0 8px;
  font-size: 11px;
  line-height: 1.4;
}
.pbl-level-guide-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1 1 0;
  min-height: 0;
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
}
.pbl-level-guide-toc__item {
  margin: 0;
}
.pbl-level-guide-toc__btn {
  width: 100%;
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr) auto;
  align-items: start;
  gap: 6px;
  text-align: left;
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 8px 8px;
  background: #f8fafc;
  cursor: pointer;
  font: inherit;
  color: inherit;
}
.pbl-level-guide-toc__btn:hover {
  background: #eff6ff;
  border-color: rgba(59, 130, 246, 0.25);
}
.pbl-level-guide-toc__item.is-active .pbl-level-guide-toc__btn {
  background: #eff6ff;
  border-color: rgba(37, 99, 235, 0.45);
  box-shadow: inset 0 0 0 1px rgba(37, 99, 235, 0.12);
}
.pbl-level-guide-toc__mark {
  font-size: 12px;
  font-weight: 700;
  color: #64748b;
  line-height: 1.45;
}
.pbl-level-guide-toc__label {
  font-size: 13px;
  font-weight: 650;
  line-height: 1.4;
  color: #0f172a;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
.pbl-level-guide-toc__status {
  font-size: 11px;
  font-weight: 650;
  line-height: 1.35;
  color: #16a34a;
  white-space: nowrap;
}
.pbl-level-guide-toc__status.is-pending,
.pbl-level-guide-toc__item.is-pending .pbl-level-guide-toc__status {
  color: #b45309;
}
.pbl-level-guide-toc__item.is-optional .pbl-level-guide-toc__status {
  color: #94a3b8;
}
.pbl-level-map {
  display: flex;
  flex-direction: column;
  min-height: 0;
  padding: 12px;
  border-radius: 14px;
  background: #fff;
  border: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: 0 4px 18px rgba(15, 23, 42, 0.04);
  overflow: hidden;
}
.pbl-level-map__head {
  flex-shrink: 0;
}
.pbl-level-map__course {
  margin: 0 0 6px;
  font-size: 12px;
  line-height: 1.4;
}
.pbl-level-map__head-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.pbl-level-map__head-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}
.pbl-level-map__foot {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 10px;
}
.pbl-level-map__add {
  width: 100%;
}
.pbl-level-map__clear-levels {
  width: 100%;
  font-size: 12px;
  color: #dc2626;
}
.pbl-level-map__clear-levels[hidden] {
  display: none !important;
}
.pbl-level-map__row {
  position: relative;
}
.pbl-level-map__btn {
  flex: 1 1 auto;
  min-width: 0;
  width: 100%;
  box-sizing: border-box;
  padding: 10px 12px 30px;
}
.pbl-level-map__trash {
  position: absolute;
  right: 5px;
  bottom: 5px;
  z-index: 2;
  flex: none;
  width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.92);
  color: #94a3b8;
  cursor: pointer;
  padding: 0;
  opacity: 0.55;
  transition: color 0.15s, background 0.15s, border-color 0.15s, opacity 0.15s;
}
.pbl-level-map__rename {
  position: absolute;
  right: 30px;
  bottom: 5px;
  z-index: 2;
  flex: none;
  width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.92);
  color: #64748b;
  cursor: pointer;
  padding: 0;
  font-size: 12px;
  line-height: 1;
  opacity: 0.55;
  transition: color 0.15s, background 0.15s, border-color 0.15s, opacity 0.15s;
}
.pbl-level-map__item:hover .pbl-level-map__trash,
.pbl-level-map__trash:focus-visible,
.pbl-level-map__item:hover .pbl-level-map__rename,
.pbl-level-map__rename:focus-visible {
  opacity: 1;
}
.pbl-level-map__trash svg {
  width: 14px;
  height: 14px;
}
.pbl-level-map__trash:hover {
  color: #dc2626;
  border-color: rgba(220, 38, 38, 0.28);
  background: #fff;
}
.pbl-level-map__rename:hover {
  color: #4338ca;
  border-color: rgba(99, 102, 241, 0.35);
  background: #fff;
}
.pbl-level-map__title {
  margin: 0 0 4px;
  font-size: 14px;
}
.pbl-level-map__note {
  margin: 0 0 10px;
  font-size: 11px;
  line-height: 1.4;
}
.pbl-level-map__progress {
  margin-bottom: 10px;
}
.pbl-level-map__progress-bar {
  display: block;
  height: 6px;
  border-radius: 999px;
  background: linear-gradient(90deg, #526dff, #22c55e);
  width: 0%;
  transition: width 0.25s ease;
}
.pbl-level-map__progress-text {
  display: block;
  margin-top: 4px;
  font-size: 11px;
  color: var(--muted, #64748b);
}

.pbl-ai-bank-progress {
  position: fixed;
  left: 50%;
  bottom: 88px;
  z-index: 1195;
  width: min(520px, calc(100vw - 28px));
  transform: translateX(-50%);
  margin: 0;
  pointer-events: none;
}
.pbl-ai-bank-progress__inner {
  pointer-events: auto;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(99, 102, 241, 0.28);
  background: rgba(255, 255, 255, 0.97);
  box-shadow: 0 8px 24px rgba(79, 70, 229, 0.12);
}
.pbl-ai-bank-progress__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 4px;
}
.pbl-ai-bank-progress__head strong {
  font-size: 14px;
  color: #312e81;
}
.pbl-ai-bank-progress__pct {
  font-size: 13px;
  font-weight: 800;
  color: #4338ca;
  font-variant-numeric: tabular-nums;
}
.pbl-ai-bank-progress__msg {
  margin: 0 0 8px;
  font-size: 12px;
  line-height: 1.45;
  color: #475569;
}
.pbl-ai-bank-progress__track {
  height: 8px;
  border-radius: 999px;
  background: rgba(99, 102, 241, 0.12);
  overflow: hidden;
}
.pbl-ai-bank-progress__track i {
  display: block;
  height: 100%;
  width: 0%;
  border-radius: inherit;
  background: linear-gradient(90deg, #6366f1 0%, #818cf8 100%);
  transition: width 0.35s ease;
}
.pbl-ai-bank-progress.is-indeterminate .pbl-ai-bank-progress__track i {
  width: 36% !important;
  animation: pbl-ai-bank-progress-slide 1.35s ease-in-out infinite;
}
.pbl-ai-bank-progress.is-done .pbl-ai-bank-progress__track i {
  background: linear-gradient(90deg, #10b981 0%, #34d399 100%);
}
.pbl-ai-bank-progress.is-failed .pbl-ai-bank-progress__track i {
  background: linear-gradient(90deg, #ef4444 0%, #f87171 100%);
}
@keyframes pbl-ai-bank-progress-slide {
  0% {
    transform: translateX(-120%);
  }
  100% {
    transform: translateX(320%);
  }
}

/* 通用 AI 进度（目录识别 / 字段 AI 等） */
.admin-ai-progress {
  margin: 0;
}
.admin-ai-progress--inline {
  margin-top: 10px;
}
.admin-ai-progress--float {
  position: fixed;
  left: 50%;
  bottom: 76px;
  z-index: 1194;
  width: min(560px, calc(100vw - 32px));
  transform: translateX(-50%);
  pointer-events: none;
}
.admin-ai-progress--float .admin-ai-progress__inner {
  pointer-events: auto;
  padding: 12px 16px 14px;
  border: 1px solid rgba(99, 102, 241, 0.28);
  background: #ffffff;
  box-shadow: 0 10px 28px rgba(45, 57, 111, 0.16);
  border-radius: 12px;
}
.admin-ai-progress--float .admin-ai-progress__head strong {
  font-size: 16px;
}
.admin-ai-progress--float .admin-ai-progress__msg {
  font-size: 14px;
}
.admin-ai-progress--float .admin-ai-progress__steps {
  font-size: 13px;
  max-height: 132px;
  overflow-y: auto;
}
.admin-ai-progress--float .admin-ai-progress__track {
  height: 10px;
  background: rgba(99, 102, 241, 0.18);
}
.admin-ai-progress__inner {
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(99, 102, 241, 0.28);
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 8px 24px rgba(79, 70, 229, 0.1);
}
.admin-ai-progress__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 4px;
}
.admin-ai-progress__head strong {
  font-size: 14px;
  color: #312e81;
}
.admin-ai-progress__actions {
  display: flex;
  align-items: center;
  gap: 8px;
}
.admin-ai-progress__pct {
  font-size: 13px;
  font-weight: 800;
  color: #4338ca;
  font-variant-numeric: tabular-nums;
}
.admin-ai-progress__dismiss {
  border: none;
  background: transparent;
  font-size: 18px;
  line-height: 1;
  color: #94a3b8;
  cursor: pointer;
  padding: 0 2px;
}
.admin-ai-progress__dismiss:hover {
  color: #475569;
}
.admin-ai-progress__msg {
  margin: 0 0 8px;
  font-size: 12px;
  line-height: 1.5;
  color: #475569;
}
.admin-ai-progress__steps {
  margin: 0 0 8px;
  padding: 0;
  list-style: none;
  font-size: 12px;
  line-height: 1.45;
}
.admin-ai-progress__steps li {
  display: flex;
  align-items: flex-start;
  gap: 6px;
  padding: 2px 0;
  color: #94a3b8;
}
.admin-ai-progress__steps li.is-active {
  color: #4338ca;
  font-weight: 600;
}
.admin-ai-progress__steps li.is-done {
  color: #059669;
}
.admin-ai-progress__steps li.is-failed {
  color: #dc2626;
}
.admin-ai-progress__steps li::before {
  flex-shrink: 0;
  width: 14px;
  text-align: center;
}
.admin-ai-progress__steps li.is-pending::before {
  content: '○';
}
.admin-ai-progress__steps li.is-active::before {
  content: '▸';
}
.admin-ai-progress__steps li.is-done::before {
  content: '✓';
}
.admin-ai-progress__steps li.is-failed::before {
  content: '✕';
}
.admin-ai-progress__track {
  height: 8px;
  border-radius: 999px;
  background: rgba(99, 102, 241, 0.12);
  overflow: hidden;
}
.admin-ai-progress__track i {
  display: block;
  height: 100%;
  width: 0%;
  border-radius: inherit;
  background: linear-gradient(90deg, #6366f1 0%, #818cf8 100%);
  transition: width 0.35s ease;
}
.admin-ai-progress.is-indeterminate .admin-ai-progress__track i {
  width: 36% !important;
  animation: pbl-ai-bank-progress-slide 1.35s ease-in-out infinite;
}
.admin-ai-progress.is-done .admin-ai-progress__track i {
  background: linear-gradient(90deg, #10b981 0%, #34d399 100%);
}
.admin-ai-progress.is-failed .admin-ai-progress__track i {
  background: linear-gradient(90deg, #ef4444 0%, #f87171 100%);
}

.pbl-level-map__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1 1 0;
  min-height: 0;
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
}
.pbl-level-map__empty {
  margin: 8px 4px;
  padding: 18px 14px;
  border: 1px dashed #cbd5e1;
  border-radius: 12px;
  background: #f8fafc;
  color: #64748b;
  font-size: 13px;
  line-height: 1.5;
  text-align: center;
}
.pbl-level-map__item {
  margin: 0;
}
.pbl-level-map__btn {
  text-align: left;
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 10px 12px 30px;
  background: #f8fafc;
  cursor: pointer;
  font: inherit;
}
.pbl-level-map__btn.is-active {
  border-color: rgba(82, 109, 255, 0.35);
  background: #eef3ff;
  box-shadow: inset 0 0 0 1px rgba(82, 109, 255, 0.08);
}
.pbl-level-map__btn.is-configured .pbl-level-map__status {
  color: #16a34a;
}
.pbl-level-map__headline {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  font-size: 12px;
  font-weight: 700;
}
.pbl-level-map__phase {
  display: block;
  margin-top: 2px;
  font-size: 11px;
  color: var(--muted, #64748b);
}
.pbl-level-map__meta {
  display: block;
  margin-top: 2px;
  font-size: 10px;
  color: var(--muted, #94a3b8);
}
.pbl-level-map__status {
  margin-left: auto;
  font-size: 11px;
  color: var(--muted, #94a3b8);
  white-space: nowrap;
}
.pbl-level-map__status.is-gen-done {
  color: #15803d;
  font-weight: 600;
}
.pbl-level-map__status.is-gen-active {
  color: #1d4ed8;
  font-weight: 600;
}
.pbl-level-map__status.is-gen-pending {
  color: #94a3b8;
}
.pbl-level-map__btn.is-generating {
  border-color: rgba(59, 130, 246, 0.45);
  background: #eff6ff;
}
.pbl-level-map__btn.is-pending,
.pbl-level-map__btn.is-placeholder {
  opacity: 0.72;
  cursor: default;
  pointer-events: none;
}
.pbl-level-map__item.is-item-generating .pbl-level-map__status.is-gen-active::after {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-left: 4px;
  border: 2px solid rgba(59, 130, 246, 0.35);
  border-top-color: #2563eb;
  border-radius: 50%;
  vertical-align: -1px;
  animation: pbl-level-gen-spin 0.8s linear infinite;
}
@keyframes pbl-level-gen-spin {
  to {
    transform: rotate(360deg);
  }
}
#pbl-orchestrate-workspace {
  position: relative;
}
/* 遮罩只盖内容区，不挡住上方「本关闯关流程」步骤条 */
#pbl-orchestrate-workspace.is-ai-level-generating .pbl-workspace-panels {
  visibility: hidden;
  pointer-events: none;
}
#pbl-orchestrate-workspace > .pbl-level-ai-generating {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  top: auto;
  /* 盖住流程条以下区域；流程条仍可点（已生成关会清掉本遮罩） */
  height: calc(100% - 96px);
  z-index: 12;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
  background: rgba(255, 255, 255, 0.92);
}
#pbl-orchestrate-workspace > .pbl-level-ai-generating[hidden] {
  display: none !important;
}
.pbl-level-ai-generating {
  position: absolute;
  inset: 0;
  z-index: 12;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
  background: rgba(255, 255, 255, 0.92);
}
.pbl-level-ai-generating--inline {
  position: static;
  inset: auto;
  min-height: 200px;
  background: transparent;
}
.pbl-gen-shell-status {
  margin: 12px 0 0;
  padding: 28px 20px;
  border-radius: 14px;
  border: 1px solid rgba(59, 130, 246, 0.22);
  background: #f8fbff;
  text-align: center;
}
.pbl-gen-shell-status__title {
  margin: 10px 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: #1e3a8a;
}
.pbl-gen-shell-status__msg {
  margin: 0;
  font-size: 13px;
  line-height: 1.55;
  color: #475569;
}
.pbl-level-flow__step.is-placeholder {
  opacity: 0.72;
  cursor: default;
  pointer-events: none;
  background: #f8fafc;
  border-style: dashed;
}
.pbl-level-ai-generating__box {
  max-width: 360px;
  text-align: center;
  padding: 20px 16px;
  border-radius: 12px;
  border: 1px solid rgba(59, 130, 246, 0.25);
  background: #f8fbff;
}
.pbl-level-ai-generating__spinner {
  display: inline-block;
  width: 28px;
  height: 28px;
  margin-bottom: 10px;
  border: 3px solid rgba(59, 130, 246, 0.25);
  border-top-color: #2563eb;
  border-radius: 50%;
  animation: pbl-level-gen-spin 0.85s linear infinite;
}
.pbl-level-ai-generating__title {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 600;
  color: #1e3a8a;
}
.pbl-level-ai-generating__msg {
  margin: 0 0 8px;
  font-size: 13px;
  color: #334155;
  line-height: 1.5;
}
.pbl-level-ai-generating__hint {
  margin: 0;
  font-size: 12px;
  color: #64748b;
}
.pbl-level-map__add {
  width: 100%;
  flex-shrink: 0;
}
.pbl-level-actions-card {
  max-width: 440px;
  width: min(440px, calc(100vw - 32px));
}
.pbl-level-actions-card__meta {
  margin: 0 0 4px;
  font-size: 14px;
}
.pbl-level-actions-card__hint {
  margin: 0 0 16px;
  font-size: 12px;
}
.pbl-level-actions-card__btns {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 12px;
}
.pbl-level-actions-card__suggest {
  margin-bottom: 12px;
  max-height: min(360px, 50vh);
  overflow-y: auto;
}
.pbl-level-actions-card__suggest[hidden] {
  display: none !important;
}
.stub-modal--pbl-level .pbl-suggest-box {
  margin: 0;
}
.pbl-level-map__draft-del {
  flex-shrink: 0;
  font-size: 12px;
  color: #dc2626;
}
.pbl-orchestrate-workspace {
  flex: 1 1 0;
  min-height: 0;
  min-width: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  gap: 10px;
}
.pbl-level-hint {
  flex-shrink: 0;
  margin: 0;
  padding: 8px 12px;
  border-radius: 10px;
  background: #f8fafc;
  border: 1px solid rgba(148, 163, 184, 0.25);
  font-size: 13px;
  line-height: 1.5;
  color: #475569;
}
.pbl-level-hint:not([hidden]) {
  display: block;
}
.pbl-level-workbench__head {
  flex-shrink: 0;
  padding: 10px 12px;
  border-radius: 12px;
  background: linear-gradient(135deg, #f8fafc 0%, #eef3ff 100%);
  border: 1px solid rgba(82, 109, 255, 0.15);
}
.pbl-level-workbench__head-main {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}
.pbl-level-workbench__phase {
  font-size: 12px;
  font-weight: 700;
  color: #334155;
}
.pbl-level-workbench__structure {
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(82, 109, 255, 0.12);
  color: #4338ca;
}
.pbl-level-workbench__todo {
  margin: 0 0 8px;
  font-size: 13px;
  line-height: 1.5;
  color: #1e40af;
  font-weight: 600;
}
.pbl-level-workbench__checklist {
  margin: 0 0 8px;
  padding-left: 18px;
  font-size: 12px;
  line-height: 1.5;
  color: #475569;
}
.pbl-level-workbench__links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}
.pbl-level-workbench__links-label {
  font-size: 11px;
  font-weight: 700;
  color: #64748b;
}
.pbl-level-workbench__link-chip {
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid rgba(148, 163, 184, 0.35);
  color: #475569;
}
.pbl-level-step-rail {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  flex-shrink: 0;
  padding: 4px 0;
}
.pbl-level-step-rail__btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 10px;
  border: 1px solid rgba(15, 23, 42, 0.1);
  background: #fff;
  font: inherit;
  font-size: 12px;
  font-weight: 650;
  cursor: pointer;
  color: #475569;
  max-width: 100%;
}
.pbl-level-step-rail__btn.is-active {
  border-color: #526dff;
  background: #eef3ff;
  color: #312e81;
  box-shadow: 0 2px 8px rgba(82, 109, 255, 0.15);
}
.pbl-level-step-rail__mark {
  font-weight: 800;
  color: #526dff;
}
.pbl-level-step-rail__label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 160px;
}
/* 本关闯关流程：入门卡 + 闯关任务，一条线看清 */
.pbl-level-flow {
  flex-shrink: 0;
  margin-bottom: 4px;
  padding: 12px 14px;
  border-radius: 14px;
  background: linear-gradient(135deg, #f8fafc 0%, #eef3ff 55%, #fff 100%);
  border: 1px solid rgba(82, 109, 255, 0.16);
}
.pbl-level-flow__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}
.pbl-level-flow__intro {
  min-width: 0;
}
.pbl-level-flow__title {
  display: block;
  font-size: 15px;
  font-weight: 800;
  color: #0f172a;
  line-height: 1.35;
}
.pbl-level-flow__note {
  display: block;
  margin-top: 2px;
  font-size: 12px;
  color: #64748b;
  line-height: 1.45;
}
.pbl-level-flow__track {
  display: flex;
  flex-wrap: nowrap;
  align-items: stretch;
  gap: 0;
  overflow-x: auto;
  overflow-y: hidden;
  padding-bottom: 4px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}
.pbl-level-flow__arrow {
  flex: 0 0 auto;
  align-self: center;
  padding: 0 4px;
  font-size: 14px;
  font-weight: 800;
  color: #94a3b8;
  line-height: 1;
}
.pbl-level-flow__step {
  flex: 1 1 0;
  min-width: min(168px, 42vw);
  max-width: 220px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(15, 23, 42, 0.1);
  background: #fff;
  font: inherit;
  text-align: left;
  cursor: pointer;
  color: #334155;
  transition: border-color 0.15s, box-shadow 0.15s, background 0.15s;
}
.pbl-level-flow__step:hover {
  border-color: rgba(82, 109, 255, 0.35);
  background: #fafbff;
}
.pbl-level-flow__step.is-active {
  border-color: #526dff;
  background: #eef3ff;
  box-shadow: 0 4px 14px rgba(82, 109, 255, 0.18);
}
.pbl-level-flow__step.is-done:not(.is-active) {
  border-color: rgba(34, 197, 94, 0.35);
  background: #f0fdf4;
}
.pbl-level-flow__step-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
}
.pbl-level-flow__badge {
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.04em;
  padding: 2px 8px;
  border-radius: 999px;
  white-space: nowrap;
}
.pbl-level-flow__badge--guide {
  background: rgba(245, 158, 11, 0.18);
  color: #b45309;
}
.pbl-teacher-guide-panel {
  padding: 16px;
  border-radius: 12px;
  border: 2px solid rgba(245, 158, 11, 0.35);
  background: linear-gradient(180deg, rgba(254, 243, 199, 0.55), #fff);
  box-shadow: 0 4px 16px rgba(245, 158, 11, 0.08);
}
.pbl-teacher-guide-panel__head {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 12px;
}
.pbl-teacher-guide-panel__icon {
  font-size: 22px;
  line-height: 1;
}
.pbl-teacher-guide-panel__title {
  margin: 0 0 4px;
  font-size: 16px;
  font-weight: 800;
  color: #92400e;
}
.pbl-teacher-guide-panel__level {
  margin: 0 0 2px;
  font-size: 15px;
  font-weight: 800;
  line-height: 1.35;
  color: #4338ca;
}
.pbl-orchestrate-empty-hero {
  max-width: 560px;
  text-align: center;
}
.pbl-orchestrate-empty-hero__title {
  margin: 0 0 8px;
  font-size: 20px;
  font-weight: 800;
  color: #0f172a;
}
.pbl-orchestrate-empty-hero__lead {
  margin: 0;
  font-size: 15px;
  line-height: 1.55;
}
.pbl-orchestrate-empty-note {
  margin: 0;
  max-width: 520px;
  text-align: center;
  font-size: 13px;
  line-height: 1.5;
}
.pbl-orchestrate-onboarding__cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  max-width: none;
}
.pbl-orchestrate-empty-btn {
  min-width: min(280px, 100%);
  font-size: 16px;
  padding: 14px 28px;
}
#view-admin #admin-panel-tasks.is-on .pbl-teacher-guide-panel__level {
  font-size: 16px;
}
#view-admin #admin-panel-tasks.is-on .pbl-teacher-guide-panel__title {
  font-size: 18px;
}
#view-admin #admin-panel-basics.is-on .admin-create-footer-actions--basics {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}
.pbl-teacher-guide-panel__meta {
  margin: 0;
  font-size: 12px;
  font-weight: 650;
  color: #b45309;
}
.pbl-level-flow__badge--intro {
  background: #e0e7ff;
  color: #3730a3;
}
.pbl-level-flow__badge--quiz {
  background: #dbeafe;
  color: #1d4ed8;
}
.pbl-level-flow__badge--work {
  background: #ffedd5;
  color: #c2410c;
}
.pbl-level-flow__badge--reward {
  background: #fce7f3;
  color: #be185d;
}
.pbl-level-flow__status {
  font-size: 11px;
  font-weight: 700;
  color: #f59e0b;
  white-space: nowrap;
}
.pbl-level-flow__status.is-ok {
  color: #16a34a;
}
.pbl-level-flow__step-title {
  font-size: 14px;
  font-weight: 800;
  line-height: 1.3;
  color: #0f172a;
}
.pbl-level-flow__step-sub {
  font-size: 12px;
  line-height: 1.4;
  color: #475569;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.pbl-level-flow__step-hint {
  font-size: 11px;
  line-height: 1.35;
  color: #94a3b8;
}
.pbl-level-flow-editor {
  flex-shrink: 0;
  padding: 10px 14px 6px;
  border-bottom: 1px solid rgba(148, 163, 184, 0.2);
  margin-bottom: 4px;
}
.pbl-level-flow-editor__kicker {
  margin: 0 0 4px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #4338ca;
}
.pbl-level-flow-editor__title {
  margin: 0 0 4px;
  font-size: clamp(17px, 1.5vw, 20px);
  font-weight: 800;
  line-height: 1.35;
  color: #0f172a;
}
.pbl-level-flow-editor__lead {
  margin: 0;
  font-size: 13px;
  line-height: 1.55;
  color: #64748b;
  max-width: 72ch;
}
.pbl-level-flow-editor {
  flex-shrink: 0;
  padding: 8px 14px 6px;
  border-bottom: 1px solid rgba(148, 163, 184, 0.2);
  margin-bottom: 0;
}
.pbl-level-flow-guides {
  margin: 0 0 12px;
}
.pbl-level-flow-guides[hidden] {
  display: none !important;
}
#view-admin .pbl-level-flow-guides {
  flex-shrink: 0;
  margin: 0 0 10px;
}
#view-admin .pbl-level-flow-guides__details {
  margin: 0;
  border-radius: 12px;
  overflow: hidden;
  border: 2px solid rgba(245, 158, 11, 0.42);
  background: linear-gradient(180deg, rgba(254, 243, 199, 0.75), rgba(255, 255, 255, 0.99));
  box-shadow: 0 4px 16px rgba(245, 158, 11, 0.1);
}
#view-admin .pbl-level-flow-guides__summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  margin: 0;
  font-size: 14px;
  font-weight: 800;
  color: #92400e;
  cursor: pointer;
  list-style: none;
  background: linear-gradient(90deg, rgba(251, 191, 36, 0.38), rgba(254, 243, 199, 0.42));
  border-bottom: 1px solid transparent;
}
#view-admin .pbl-level-flow-guides__summary::-webkit-details-marker {
  display: none;
}
#view-admin .pbl-level-flow-guides__icon {
  font-size: 16px;
  line-height: 1;
  flex-shrink: 0;
}
#view-admin .pbl-level-flow-guides__title {
  min-width: 0;
  flex: 1 1 auto;
}
#view-admin .pbl-level-flow-guides__meta {
  flex: 0 0 auto;
  margin-left: auto;
  margin-right: 10px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
  color: #b45309;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(245, 158, 11, 0.25);
}
#view-admin .pbl-level-flow-guides__summary::after {
  content: '▼ 展开';
  flex: 0 0 auto;
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.03em;
  color: #fff;
  white-space: nowrap;
  border: 2px solid rgba(255, 255, 255, 0.55);
  background: linear-gradient(135deg, #d97706, #b45309);
  box-shadow: 0 3px 14px rgba(217, 119, 6, 0.35);
  transition: transform 0.15s ease, filter 0.15s ease;
}
#view-admin .pbl-level-flow-guides__summary:hover::after {
  transform: translateY(-1px);
  filter: brightness(1.05);
}
#view-admin .pbl-level-flow-guides__details[open] .pbl-level-flow-guides__summary {
  border-bottom-color: rgba(148, 163, 184, 0.14);
}
#view-admin .pbl-level-flow-guides__details[open] .pbl-level-flow-guides__summary::after {
  content: '▲ 收起';
  background: linear-gradient(135deg, #475569, #334155);
  box-shadow: 0 2px 8px rgba(51, 65, 85, 0.28);
}
#view-admin .pbl-level-flow-guides__box {
  padding: 12px 14px 14px;
}
.pbl-level-flow-guides__help {
  margin: 0 0 10px;
  font-size: 12px;
  line-height: 1.55;
  color: #64748b;
}
.pbl-teacher-guide__status.is-pending {
  color: #dc2626;
  font-weight: 650;
}
.pbl-teacher-guide__row--blueprint .pbl-teacher-guide__action {
  color: #64748b;
  font-style: italic;
}
.pbl-teacher-guide__row--blueprint .pbl-teacher-guide__status {
  color: #94a3b8;
  font-size: 11px;
}
.pbl-level-flow-guides__next {
  margin: 0 0 8px;
  font-size: 12px;
  line-height: 1.55;
  color: #475569;
}
.pbl-level-flow-guides__bp-note {
  margin: 0 0 10px;
  font-size: 11px;
}
.pbl-teacher-guide__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.pbl-teacher-guide__row--clickable {
  cursor: pointer;
  transition: background 0.12s ease;
}
.pbl-teacher-guide__row--clickable:hover,
.pbl-teacher-guide__row--clickable:focus-visible {
  background: rgba(82, 109, 255, 0.08);
  outline: none;
}
.pbl-teacher-guide__go-hint {
  margin-left: 4px;
  font-weight: 800;
  color: #526dff;
}
.pbl-level-flow-guides__table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
  line-height: 1.45;
  margin-bottom: 8px;
}
.pbl-level-flow-guides__table th,
.pbl-level-flow-guides__table td {
  padding: 6px 8px;
  border-bottom: 1px solid rgba(148, 163, 184, 0.25);
  text-align: left;
  vertical-align: top;
}
.pbl-level-flow-guides__table th {
  font-weight: 700;
  color: #64748b;
  font-size: 11px;
}
.pbl-level-workbench__split {
  flex: 1 1 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.pbl-student-preview {
  display: flex;
  flex-direction: column;
  min-height: 0;
  border-radius: 14px;
  border: 1px solid rgba(59, 130, 246, 0.22);
  background: linear-gradient(180deg, #f0f9ff 0%, #fff 48%);
  overflow: hidden;
}
.pbl-student-preview__head {
  flex-shrink: 0;
  padding: 12px 14px 8px;
  border-bottom: 1px solid rgba(59, 130, 246, 0.12);
}
.pbl-student-preview__title {
  margin: 0 0 4px;
  font-size: 14px;
  font-weight: 800;
  color: #1e3a8a;
}
.pbl-student-preview__lead {
  margin: 0;
  font-size: 11px;
  line-height: 1.45;
}
.pbl-student-preview__body {
  flex: 1 1 0;
  min-height: 0;
  overflow-y: auto;
  padding: 12px 14px;
  font-size: 13px;
  line-height: 1.55;
}
.pbl-student-preview__guides {
  flex-shrink: 0;
  max-height: 42%;
  overflow-y: auto;
  padding: 0 14px 12px;
  border-top: 1px dashed rgba(59, 130, 246, 0.15);
}
.pbl-student-preview__kicker {
  margin: 0 0 8px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: #2563eb;
  text-transform: none;
}
.pbl-student-preview__task-title {
  margin: 0 0 8px;
  font-size: 14px;
}
.pbl-student-preview__block {
  margin-bottom: 10px;
}
.pbl-student-preview__block strong {
  display: block;
  margin-bottom: 4px;
  font-size: 12px;
}
.pbl-student-preview__block p {
  margin: 0;
}
.pbl-student-preview__pre {
  margin: 0;
  white-space: pre-wrap;
  font-family: inherit;
  font-size: 12px;
  line-height: 1.5;
  color: #334155;
}
.pbl-student-preview__meta {
  margin: 8px 0 0;
  font-size: 11px;
}
.pbl-student-preview__guide-box h5 {
  margin: 10px 0 6px;
  font-size: 12px;
}
.pbl-student-preview__table {
  width: 100%;
  border-collapse: collapse;
  font-size: 11px;
  margin-bottom: 8px;
}
.pbl-student-preview__table th,
.pbl-student-preview__table td {
  padding: 5px 6px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid rgba(148, 163, 184, 0.2);
}
.pbl-workspace-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 10px;
  flex-shrink: 0;
}
.pbl-workspace-tabs__btn {
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid rgba(15, 23, 42, 0.12);
  background: #f8fafc;
  font: inherit;
  font-size: 13px;
  font-weight: 650;
  cursor: pointer;
  color: #475569;
}
.pbl-workspace-tabs__btn.is-active {
  background: #526dff;
  border-color: #526dff;
  color: #fff;
  box-shadow: 0 4px 12px rgba(82, 109, 255, 0.25);
}
.pbl-workspace-panels {
  flex: 1 1 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.pbl-workspace-panel {
  flex: 1 1 0;
  min-height: 0;
  display: none;
  flex-direction: column;
  overflow: hidden;
}
.pbl-workspace-panel.is-active {
  display: flex;
}
.pbl-workspace-panel__scroll {
  flex: 1 1 0;
  min-height: 0;
  max-height: 100%;
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  padding-right: 4px;
  scrollbar-gutter: stable;
}
#view-admin .pbl-level-hero__step {
  display: none;
}
#view-admin .pbl-orchestrate-nodes-zone {
  flex-shrink: 0;
  margin-bottom: 8px;
}
#view-admin .pbl-orchestrate-nodes-zone .pbl-task-nodes-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 10px;
  background: #f8fafc;
  border: 1px solid rgba(15, 23, 42, 0.08);
}
#view-admin .pbl-task-nodes-bar__label {
  font-size: 12px;
  font-weight: 700;
  color: #64748b;
  flex-shrink: 0;
}
.pbl-level-checklist {
  margin: 0 0 12px;
  padding: 12px 14px;
  border-radius: 12px;
  background: #f0fdf4;
  border: 1px solid rgba(34, 197, 94, 0.2);
}
.pbl-level-checklist__title {
  margin: 0 0 8px;
  font-size: 13px;
}
.pbl-level-checklist__list {
  margin: 0;
  padding-left: 18px;
  font-size: 12px;
  line-height: 1.55;
}
.pbl-level-checklist__ref {
  margin: 8px 0 0;
  font-size: 11px;
}
.pbl-teacher-next {
  margin: 0 0 12px;
  padding: 10px 14px;
  border-radius: 12px;
  background: linear-gradient(90deg, #eef3ff 0%, #f8fafc 100%);
  border: 1px solid rgba(82, 109, 255, 0.22);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
}
.pbl-teacher-next__badge {
  flex-shrink: 0;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: #4338ca;
  padding: 3px 8px;
  border-radius: 999px;
  background: rgba(99, 102, 241, 0.12);
}
.pbl-teacher-next__text {
  margin: 0;
  flex: 1;
  min-width: 0;
  font-size: 13px;
  line-height: 1.5;
  color: #334155;
}
.pbl-node-guides {
  margin: 0 0 14px;
  padding: 12px 14px;
  border-radius: 12px;
  background: #fafafa;
  border: 1px solid rgba(15, 23, 42, 0.08);
}
.pbl-node-guides__head {
  margin-bottom: 10px;
}
.pbl-node-guides__title {
  margin: 0 0 4px;
  font-size: 13px;
  font-weight: 800;
}
.pbl-node-guides__lead {
  margin: 0;
  font-size: 11px;
  line-height: 1.45;
}
.pbl-node-guides__block {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed rgba(148, 163, 184, 0.35);
}
.pbl-node-guides__block:first-of-type {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}
.pbl-node-guides__block-title {
  margin: 0 0 8px;
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}
.pbl-node-guides__type {
  font-size: 10px;
  font-weight: 800;
  padding: 2px 7px;
  border-radius: 999px;
  background: #e2e8f0;
  color: #475569;
}
.pbl-node-guides__table {
  width: 100%;
  border-collapse: collapse;
  font-size: 11px;
  line-height: 1.45;
  margin-bottom: 8px;
}
.pbl-node-guides__table th,
.pbl-node-guides__table td {
  padding: 6px 8px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid rgba(148, 163, 184, 0.15);
}
.pbl-node-guides__table th {
  font-weight: 700;
  color: #64748b;
  font-size: 10px;
}
.pbl-node-guides__step {
  width: 28px;
  font-weight: 700;
  color: #526dff;
  white-space: nowrap;
}
.pbl-node-guides__links {
  margin: 0 0 8px;
  font-size: 11px;
}
.pbl-node-guides__apply {
  margin-top: 4px;
}
.pbl-level-map__structure {
  margin-left: auto;
  font-size: 9px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 999px;
  background: rgba(82, 109, 255, 0.1);
  color: #4338ca;
  white-space: nowrap;
}
.pbl-publish-checklist {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.pbl-publish-checklist li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 10px;
  background: #f8fafc;
  border: 1px solid rgba(15, 23, 42, 0.06);
  font-size: 13px;
}
.pbl-publish-checklist li.is-ok {
  background: #f0fdf4;
  border-color: rgba(34, 197, 94, 0.25);
}
.pbl-publish-checklist li.is-warn {
  background: #fff7ed;
  border-color: rgba(249, 115, 22, 0.25);
}
.pbl-publish-checklist__icon {
  flex-shrink: 0;
  font-weight: 800;
}
.pbl-level-student-strip {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin: 0 0 12px;
  padding: 10px 14px;
  border-radius: 12px;
  background: linear-gradient(135deg, #eef3ff 0%, #f8fafc 100%);
  border: 1px solid rgba(82, 109, 255, 0.18);
  font-size: 12px;
  line-height: 1.5;
}
.pbl-level-student-strip__badge {
  flex-shrink: 0;
  padding: 2px 8px;
  border-radius: 999px;
  background: #526dff;
  color: #fff;
  font-size: 11px;
  font-weight: 700;
}
.pbl-level-student-strip__body p {
  margin: 0 0 6px;
}
.pbl-level-student-strip__body p:last-child {
  margin-bottom: 0;
}
.pbl-level-hero,
.pbl-level-tasks,
.pbl-level-editor {
  margin-bottom: 14px;
  padding: 14px 16px;
  border-radius: 14px;
  background: #fff;
  border: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: 0 2px 10px rgba(15, 23, 42, 0.03);
}
.pbl-level-hero__head,
.pbl-level-tasks__head,
.pbl-level-editor__head {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 12px;
}
.pbl-level-hero__step,
.pbl-level-tasks__step,
.pbl-level-editor__step {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #526dff;
  color: #fff;
  font-size: 13px;
  font-weight: 800;
}
.pbl-level-hero__title,
.pbl-level-tasks__title,
.pbl-level-editor__title {
  margin: 0;
  font-size: 14px;
}
.pbl-level-hero__lead,
.pbl-level-tasks__lead,
.pbl-level-editor__lead {
  margin: 2px 0 0;
  font-size: 11px;
}
.pbl-level-hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 12px;
}
.pbl-level-hero__grid .admin-field--full {
  grid-column: 1 / -1;
}
.pbl-level-hero__advanced {
  margin-top: 14px;
}
.pbl-level-hero__advanced summary {
  cursor: pointer;
  color: #1e293b;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.4;
  padding: 4px 0;
  list-style: none;
}
.pbl-level-hero__advanced summary::-webkit-details-marker {
  display: none;
}
.pbl-level-hero__advanced summary::before {
  content: '▾';
  display: inline-block;
  margin-right: 6px;
  font-weight: 700;
  color: #334155;
  transition: transform 0.15s ease;
}
.pbl-level-hero__advanced:not([open]) summary::before {
  transform: rotate(-90deg);
}
#view-admin .pbl-level-tasks .pbl-task-nodes-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
#view-admin .pbl-level-tasks .pbl-task-nodes-bar__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  flex: 1 1 auto;
}
#view-admin .pbl-task-node-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: 10px;
  border: 1px solid rgba(15, 23, 42, 0.1);
  background: #f8fafc;
  cursor: pointer;
  font: inherit;
  font-size: 12px;
}
#view-admin .pbl-task-node-tab.is-active {
  border-color: #526dff;
  background: #eef3ff;
  box-shadow: 0 0 0 2px rgba(82, 109, 255, 0.15);
}
#view-admin .pbl-task-node-tab__idx {
  width: 20px;
  height: 20px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(82, 109, 255, 0.15);
  font-size: 11px;
  font-weight: 800;
}
#view-admin .pbl-editor-panel.is-expanded .pbl-editor-panel__header,
#view-admin details.pbl-editor-panel > .pbl-editor-panel__summary {
  display: flex;
  align-items: center;
  gap: 8px;
}
#view-admin .pbl-editor-panel.is-expanded .pbl-editor-panel__body,
#view-admin details.pbl-editor-panel[open] > .pbl-editor-panel__body {
  display: block;
}
#view-admin details.pbl-editor-panel:not([open]) > .pbl-editor-panel__body {
  display: none;
}
.pbl-preview-actions {
  flex-wrap: wrap;
  gap: 10px;
}

/* 关卡编排 · 滚动：左列表 + 右工作区（覆盖 admin-console 旧折叠面板规则） */
#view-admin #admin-panel-tasks.is-on .pbl-lazy-review:not([hidden]) {
  flex: 1;
  min-height: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

#view-admin #admin-panel-tasks.is-on .pbl-orchestrate-layout:not([hidden]) {
  flex: 1;
  min-height: 0;
  overflow: hidden;
  align-items: stretch;
  display: grid;
  grid-template-columns: minmax(220px, 280px) minmax(0, 1fr);
  gap: 16px;
}
#view-admin #admin-panel-tasks.is-on .pbl-orchestrate-layout:not([hidden]):has(#pbl-level-guide-toc:not([hidden])) {
  grid-template-columns: minmax(220px, 280px) minmax(168px, 200px) minmax(0, 1fr);
}

#view-admin #admin-panel-tasks.is-on .pbl-orchestrate-layout:not([hidden]) > * {
  min-height: 0;
}

#view-admin #admin-panel-tasks.is-on .pbl-workspace-panels {
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

#view-admin #admin-panel-tasks.is-on .pbl-workspace-panel.is-active:not([hidden]) {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

#view-admin #admin-panel-tasks.is-on .pbl-workspace-panel__scroll {
  flex: 1;
  min-height: 0;
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
}

#view-admin #admin-panel-tasks.is-on .pbl-orchestrate-workspace:not([hidden]) {
  flex: 1 1 0;
  min-height: 0;
  min-width: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

#view-admin #admin-panel-tasks.is-on #pbl-orchestrate-editor-section,
#view-admin #admin-panel-tasks.is-on #pbl-orchestrate-editor-section.pbl-orchestrate-section--editor {
  flex: 0 0 auto;
  overflow: visible !important;
  max-height: none !important;
  min-height: 0;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-hero,
#view-admin #admin-panel-tasks.is-on .pbl-level-tasks,
#view-admin #admin-panel-tasks.is-on .pbl-level-checklist,
#view-admin #admin-panel-tasks.is-on .pbl-level-student-strip {
  flex-shrink: 0;
}

@media (max-width: 1100px) {
  .pbl-level-workbench__split {
    grid-template-columns: 1fr;
  }
  .pbl-student-preview {
    max-height: min(320px, 38vh);
  }
  .pbl-student-preview__guides {
    max-height: 160px;
  }
}
@media (max-width: 960px) {
  .pbl-orchestrate-layout {
    grid-template-columns: 1fr;
    overflow: visible;
  }
  .pbl-level-map {
    max-height: min(320px, 42vh);
  }
  .pbl-level-guide-toc {
    max-height: min(280px, 36vh);
  }
  .pbl-level-map__list {
    max-height: min(240px, 36vh);
  }
  #view-admin #admin-panel-tasks.is-on .pbl-orchestrate-workspace:not([hidden]) {
    overflow-y: visible !important;
  }
  .pbl-template-banner {
    flex-direction: column;
  }
}

/* ── 教师可读性：大字号 + 疏朗排版（关卡编排步骤 2）── */
#view-admin #admin-panel-tasks.is-on {
  font-size: 18px;
  line-height: 1.6;
}

#view-admin #admin-panel-tasks.is-on .pbl-create-steps {
  margin-bottom: 12px;
  padding: 12px 18px;
}

#view-admin #admin-panel-tasks.is-on .pbl-create-steps__item {
  padding: 8px 14px;
  font-size: 15px;
  font-weight: 650;
}

#view-admin #admin-panel-tasks.is-on .pbl-create-steps__num {
  width: 28px;
  height: 28px;
  font-size: 14px;
}

#view-admin #admin-panel-tasks.is-on .pbl-current-level__title {
  font-size: clamp(18px, 1.6vw, 22px);
  font-weight: 800;
  line-height: 1.35;
}

#view-admin #admin-panel-tasks.is-on .pbl-orchestrate-task-compact__meta {
  font-size: 14px;
}

#view-admin #admin-panel-tasks.is-on .pbl-orchestrate-layout {
  grid-template-columns: minmax(248px, 280px) minmax(0, 1fr);
  gap: 12px;
}
#view-admin #admin-panel-tasks.is-on .pbl-orchestrate-layout:has(#pbl-level-guide-toc:not([hidden])) {
  grid-template-columns: minmax(248px, 280px) minmax(176px, 210px) minmax(0, 1fr);
}

#view-admin #admin-panel-tasks.is-on .pbl-level-map {
  padding: 12px 14px;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-map__note {
  font-size: 11px;
  line-height: 1.4;
  margin-bottom: 8px;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-map__list {
  gap: 8px;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-map__row {
  gap: 0;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-map__btn {
  padding: 12px 14px 34px;
  border-radius: 12px;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-map__trash {
  right: 6px;
  bottom: 6px;
  width: 24px;
  height: 24px;
  border-radius: 7px;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-map__trash svg {
  width: 15px;
  height: 15px;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-map__headline {
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 6px;
  line-height: 1.35;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-map__headline > span:first-child {
  flex: 1 1 100%;
  min-width: 0;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-map__structure {
  margin-left: 0;
  font-size: 11px;
  padding: 2px 8px;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-map__status {
  margin-left: auto;
  flex-shrink: 0;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-map__phase {
  font-size: 14px;
  margin-top: 6px;
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-map__meta {
  display: none;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-map__title {
  font-size: 18px;
  font-weight: 800;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-map__note,
#view-admin #admin-panel-tasks.is-on .pbl-level-map__progress-text {
  font-size: 14px;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-map__headline {
  font-size: 16px;
  font-weight: 800;
  line-height: 1.4;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-workbench__head {
  padding: 14px 16px;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-workbench__phase {
  font-size: 15px;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-workbench__structure {
  font-size: 14px;
  padding: 5px 12px;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-workbench__todo {
  font-size: 16px;
  line-height: 1.55;
  margin-bottom: 0;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-workbench__checklist-wrap {
  margin-top: 10px;
  font-size: 14px;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-workbench__checklist-wrap summary {
  cursor: pointer;
  font-weight: 700;
  color: #475569;
  padding: 4px 0;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-workbench__checklist {
  margin: 8px 0 0;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.6;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-workbench__link-chip {
  font-size: 13px;
  padding: 5px 10px;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-flow {
  padding: 10px 12px 10px;
  margin-bottom: 4px;
  border-radius: 12px;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-flow__header {
  margin-bottom: 8px;
  align-items: flex-start;
  gap: 10px;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-flow__title {
  font-size: 16px;
  font-weight: 800;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-flow__note {
  display: block;
  font-size: 13px;
  margin-top: 2px;
  line-height: 1.45;
  color: #64748b;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-flow__step {
  min-width: min(148px, 34vw);
  max-width: 200px;
  flex: 1 1 0;
  padding: 8px 11px;
  border-radius: 10px;
  gap: 3px;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-flow__step-title {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.3;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-flow__step-sub {
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-size: 12px;
  line-height: 1.35;
  color: #64748b;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-flow__step-hint {
  display: none;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-flow__step-top {
  gap: 5px;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-flow__badge {
  font-size: 10px;
  padding: 2px 7px;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-flow__status {
  font-size: 11px;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-flow__arrow {
  padding: 0 3px;
  font-size: 13px;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-flow-editor {
  padding: 6px 12px 8px;
  margin-bottom: 0;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-flow-editor__kicker {
  font-size: 12px;
  margin-bottom: 3px;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-flow-editor__title {
  font-size: 16px;
  margin-bottom: 3px;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-flow-editor__lead {
  font-size: 13px;
  line-height: 1.5;
  max-width: none;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-step-rail {
  gap: 8px;
  padding: 6px 0 10px;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-step-rail__btn {
  padding: 11px 16px;
  font-size: 15px;
  font-weight: 700;
  border-radius: 12px;
  max-width: none;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-step-rail__label {
  max-width: none;
  white-space: normal;
  line-height: 1.35;
  text-align: left;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-step-rail__mark {
  font-size: 16px;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-flow-guides__table {
  font-size: 15px;
}

#view-admin #admin-panel-tasks.is-on .pbl-teacher-guide-panel__title {
  font-size: 18px;
}

#view-admin #admin-panel-tasks.is-on .pbl-teacher-guide-panel__meta,
#view-admin #admin-panel-tasks.is-on .pbl-level-flow-guides__help {
  font-size: 14px;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-flow-editor__title {
  font-size: 18px;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-flow-editor__lead {
  font-size: 14px;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-workbench__split {
  grid-template-columns: 1fr;
}

#view-admin #admin-panel-tasks.is-on .pbl-student-preview__title {
  font-size: 17px;
}

#view-admin #admin-panel-tasks.is-on .pbl-student-preview__lead {
  font-size: 13px;
}

#view-admin #admin-panel-tasks.is-on .pbl-student-preview__body {
  font-size: 15px;
  line-height: 1.65;
  padding: 14px 16px;
}

#view-admin #admin-panel-tasks.is-on .pbl-student-preview__block strong {
  font-size: 14px;
  margin-bottom: 6px;
}

#view-admin #admin-panel-tasks.is-on .pbl-student-preview__pre {
  font-size: 14px;
  line-height: 1.6;
}

#view-admin #admin-panel-tasks.is-on .pbl-student-preview__table {
  font-size: 13px;
}

#view-admin #admin-panel-tasks.is-on .pbl-student-preview__guides {
  max-height: 36%;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-hero {
  padding: 16px 18px;
  margin-bottom: 0;
  border: none;
  box-shadow: none;
  background: transparent;
}

#view-admin #admin-panel-tasks.is-on .pbl-level-hero__grid {
  gap: 14px 16px;
}

#view-admin #admin-panel-tasks.is-on .pbl-admin .admin-field-label {
  font-size: 15px;
  font-weight: 800;
  margin-bottom: 8px;
}

#view-admin #admin-panel-tasks.is-on .pbl-admin .admin-field textarea {
  font-size: 16px;
  line-height: 1.6;
  min-height: 120px;
  padding: 12px 14px;
}

#view-admin #admin-panel-tasks.is-on .pbl-admin .admin-field input,
#view-admin #admin-panel-tasks.is-on .pbl-admin .admin-field select {
  font-size: 16px;
  line-height: 1.5;
  padding: 11px 14px;
  min-height: 44px;
}

#view-admin #admin-panel-tasks.is-on .pbl-workspace-panel__scroll {
  padding: 2px 4px 12px 0;
}

#view-admin #admin-panel-tasks.is-on .btn-sm {
  font-size: 14px;
  padding: 8px 14px;
}

@media (max-width: 1280px) {
  #view-admin #admin-panel-tasks.is-on .pbl-level-workbench__split {
    grid-template-columns: 1fr;
  }
  #view-admin #admin-panel-tasks.is-on .pbl-student-preview {
    max-height: min(360px, 40vh);
  }
}

/* 基本设置 · 左目录 / 中表单 / 右上封面 */
#view-admin #admin-panel-basics .admin-basics-layout {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(320px, 400px) minmax(0, 1fr);
  gap: 18px 24px;
  min-height: 0;
  align-items: stretch;
  overflow: hidden;
}

#view-admin #admin-panel-basics .admin-basics-layout > .admin-toc-draft {
  margin: 0;
  min-height: 0;
  height: 100%;
  max-height: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 14px 16px;
  border-radius: 20px;
  border: 1px solid rgba(148, 163, 184, 0.28);
  background: #fff;
  box-shadow: 0 10px 28px rgba(72, 63, 142, 0.08);
}

#view-admin #admin-panel-basics .admin-basics-layout .admin-toc-draft__lead {
  display: none;
}

#view-admin #admin-panel-basics .admin-basics-layout .admin-toc-draft__actions {
  flex-direction: column;
  align-items: stretch;
  gap: 5px;
  flex: 0 0 auto;
  margin-top: 6px;
}

#view-admin #admin-panel-basics .admin-basics-layout .admin-toc-draft__textarea {
  flex: 1 1 auto;
  min-height: 280px;
  max-height: none;
  resize: none;
  font-family: inherit;
  font-size: 15px;
  line-height: 1.65;
  white-space: pre-wrap;
  overflow-x: hidden;
  overflow-wrap: break-word;
  word-break: break-word;
  tab-size: 2;
}

#view-admin #admin-panel-basics .admin-basics-layout .admin-toc-draft__actions #btn-admin-toc-ai-draft {
  border-color: rgba(99, 102, 241, 0.35);
  color: #4338ca;
  font-weight: 650;
}

#view-admin #admin-panel-basics .admin-basics-layout .admin-toc-draft__actions #btn-admin-toc-ai-draft:not(:disabled):hover {
  background: #eef2ff;
}

#view-admin #admin-panel-basics .admin-basics-layout .admin-toc-draft__actions .btn,
#view-admin #admin-panel-basics .admin-basics-layout .admin-toc-draft__actions .admin-upload-btn {
  width: 100%;
  justify-content: center;
  text-align: center;
  font-size: 14px;
  min-height: 36px;
}

#view-admin #admin-panel-basics .admin-basics-layout .admin-toc-draft__hint {
  display: none;
}

#view-admin #admin-panel-basics .admin-basics-layout .admin-toc-draft__status {
  flex: 0 0 auto;
  margin: 4px 0 0;
  font-size: 13px;
  line-height: 1.4;
}

#view-admin #admin-panel-basics .admin-basics-layout .admin-toc-draft__level-preview {
  display: none !important;
}

#view-admin #admin-panel-basics .admin-basics-layout > .admin-toc-draft .admin-field-label {
  font-size: 15px;
}

#view-admin #admin-panel-basics .admin-basics-layout .admin-toc-draft__preview {
  flex: 0 1 auto;
  overflow: auto;
  max-height: 120px;
}

#view-admin #admin-panel-basics .admin-basics-sheet__head {
  display: none;
}

#view-admin #admin-panel-basics .admin-basics-cover--top,
#view-admin #admin-panel-basics .admin-basics-cover--side {
  flex: 1 1 auto;
  width: 100%;
  position: static;
  padding: 10px;
  gap: 6px;
  min-height: 0;
}

#view-admin #admin-panel-basics .admin-basics-cover--top .admin-basics-cover__zone,
#view-admin #admin-panel-basics .admin-basics-cover--side .admin-basics-cover__zone {
  aspect-ratio: 4 / 3;
  max-height: none;
  min-height: 0;
  flex: 1 1 auto;
  padding: 8px;
}

#view-admin #admin-panel-basics .admin-basics-cover--top .admin-basics-cover__url,
#view-admin #admin-panel-basics .admin-basics-cover--side .admin-basics-cover__url {
  font-size: 12px;
  min-height: 32px;
  padding: 6px 8px;
}

#view-admin #admin-panel-basics .admin-basics-cover--top .admin-basics-cover__hint {
  font-size: 11px;
  line-height: 1.35;
}

#view-admin #admin-panel-basics .admin-basics-hero {
  /* 封面已移到右上，中间只剩表单 */
  display: block;
}

@media (max-width: 960px) {
  #view-admin #admin-panel-basics .admin-basics-layout {
    grid-template-columns: 1fr;
    overflow: auto;
  }

  #view-admin #admin-panel-basics .admin-basics-layout > .admin-toc-draft {
    height: auto;
    max-height: none;
  }

  #view-admin #admin-panel-basics .admin-basics-layout .admin-toc-draft__textarea {
    min-height: 220px;
    resize: vertical;
  }

  #view-admin #admin-panel-basics .admin-basics-layout .admin-toc-draft__actions {
    flex-direction: row;
    flex-wrap: wrap;
  }

  #view-admin #admin-panel-basics .admin-basics-layout .admin-toc-draft__actions .btn,
  #view-admin #admin-panel-basics .admin-basics-layout .admin-toc-draft__actions .admin-upload-btn {
    width: auto;
  }
}

@media (max-width: 720px) {
  #view-admin #admin-panel-basics .admin-basics-sheet__head {
    flex-direction: column;
  }

  #view-admin #admin-panel-basics .admin-basics-cover--top {
    width: 100%;
    flex: none;
  }

  #view-admin #admin-panel-basics .admin-basics-cover--top .admin-basics-cover__zone {
    aspect-ratio: 16 / 9;
    max-height: 160px;
  }
}

/* 基本设置 · 教材目录识别 */
.admin-toc-draft {
  margin: 0 0 16px;
  padding: 14px 16px;
  border-radius: 18px;
  background: linear-gradient(145deg, rgba(255, 255, 255, .49), rgba(244, 241, 255, .29));
  border: 1px solid rgba(255, 255, 255, .58);
  box-shadow: inset 0 1px rgba(255, 255, 255, .65), 0 9px 22px rgba(72, 63, 142, .065);
  box-sizing: border-box;
}
.admin-toc-draft__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 6px;
}
.admin-toc-draft__fill {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  max-width: min(280px, 68%);
  flex: 0 1 auto;
}
.admin-toc-draft__fill .btn {
  flex: 0 0 auto;
  white-space: nowrap;
}

/* AI 生成基本设置 / 确认填入：高对比色，老师一眼能看到 */
.btn-ai-spotlight,
#btn-pbl-fill-basics-from-toc,
#btn-admin-toc-ai-draft {
  min-height: 36px !important;
  padding: 8px 14px !important;
  border: none !important;
  border-radius: 12px !important;
  font-size: 13px !important;
  font-weight: 800 !important;
  letter-spacing: 0.02em !important;
  color: #fff !important;
  background: linear-gradient(135deg, #ff8a2a 0%, #ff4d6d 100%) !important;
  box-shadow:
    0 6px 16px rgba(255, 90, 70, 0.38),
    inset 0 1px 0 rgba(255, 255, 255, 0.28) !important;
  text-shadow: 0 1px 0 rgba(90, 20, 30, 0.18);
}
#btn-pbl-fill-basics-from-toc[data-toc-action='generate'],
#btn-admin-toc-ai-draft {
  background: linear-gradient(135deg, #ff9f1a 0%, #ff5c39 55%, #ff3d7a 100%) !important;
  box-shadow:
    0 6px 18px rgba(255, 100, 40, 0.42),
    inset 0 1px 0 rgba(255, 255, 255, 0.3) !important;
}
#btn-pbl-fill-basics-from-toc[data-toc-action='confirm'] {
  background: linear-gradient(135deg, #12c8a0 0%, #0ea5e9 100%) !important;
  box-shadow:
    0 6px 18px rgba(14, 165, 233, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.3) !important;
}
#btn-pbl-fill-basics-from-toc[data-toc-action='withdraw'] {
  background: linear-gradient(135deg, #94a3b8 0%, #64748b 100%) !important;
  box-shadow: 0 4px 12px rgba(100, 116, 139, 0.28) !important;
}
.btn-ai-spotlight:hover:not(:disabled),
#btn-pbl-fill-basics-from-toc:hover:not(:disabled),
#btn-admin-toc-ai-draft:hover:not(:disabled) {
  filter: brightness(1.06);
  transform: translateY(-1px);
}
.btn-ai-spotlight:disabled,
#btn-pbl-fill-basics-from-toc:disabled,
#btn-admin-toc-ai-draft:disabled {
  opacity: 0.55 !important;
  filter: grayscale(0.15);
  box-shadow: none !important;
  transform: none !important;
  cursor: not-allowed;
}

.admin-toc-draft__fill-help {
  display: block;
  font-size: 11px;
  line-height: 1.35;
  text-align: right;
  margin: 0;
}
.admin-toc-draft__lead {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.5;
}
.admin-toc-draft__textarea {
  width: 100%;
  min-height: 108px;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid rgba(15, 23, 42, 0.12);
  font-family: inherit;
  font-size: 15px;
  line-height: 1.65;
  letter-spacing: 0.01em;
  white-space: pre-wrap;
  overflow-x: hidden;
  overflow-wrap: break-word;
  word-break: break-word;
  tab-size: 2;
  resize: vertical;
  box-sizing: border-box;
}
.admin-toc-draft__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
}
.admin-toc-draft__actions label.is-busy {
  opacity: 0.65;
  pointer-events: none;
}
#btn-admin-parse-toc:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}
.admin-toc-draft__hint {
  font-size: 13px;
  flex: 1 1 180px;
}
.admin-toc-draft__status {
  margin: 10px 0 0;
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 13px;
  background: #ecfdf5;
  border: 1px solid rgba(34, 197, 94, 0.25);
  color: #166534;
}
.admin-toc-draft__status.is-streaming {
  background: #eff6ff;
  border-color: rgba(59, 130, 246, 0.35);
  color: #1d4ed8;
}
.admin-toc-draft__status.is-llm-failed {
  background: #fffbeb;
  border-color: rgba(245, 158, 11, 0.35);
  color: #92400e;
}
.admin-toc-draft__level-preview {
  display: none !important;
}
.admin-toc-draft__preview {
  margin-top: 10px;
  font-size: 13px;
}
.admin-toc-draft__preview summary {
  cursor: pointer;
  font-weight: 600;
  margin-bottom: 6px;
}
.admin-toc-draft__unit-list {
  margin: 0;
  padding-left: 18px;
  line-height: 1.55;
}
.admin-toc-draft__unit-list > li + li {
  margin-top: 8px;
}
.admin-toc-draft__section-list {
  margin: 4px 0 0;
  padding-left: 16px;
  list-style: disc;
  font-size: 13px;
  color: #475569;
}
.admin-toc-draft__section-list li + li {
  margin-top: 2px;
}
#btn-pbl-apply-toc-blueprint {
  margin-bottom: 8px;
}

/* ==== teacher publish success ==== */
.stub-modal--publish-success {
  z-index: 12050;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(ellipse 70% 55% at 50% 38%, rgba(124, 108, 240, 0.22), transparent 70%),
    rgba(15, 23, 55, 0.48);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
body.course-publish-success-open { overflow: hidden; }
.stub-modal--publish-success[hidden] { display: none !important; }
.course-publish-success {
  position: relative;
  width: min(92vw, 420px);
  padding: 36px 28px 28px;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.55);
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.96), rgba(241, 244, 255, 0.94));
  box-shadow: 0 28px 80px rgba(47, 42, 120, 0.28), 0 0 0 1px rgba(103, 84, 186, 0.08);
  text-align: center;
}
.course-publish-success.is-animating {
  animation: course-publish-pop 420ms cubic-bezier(0.2, 0.9, 0.2, 1.15) both;
}
.course-publish-success.is-animating .course-publish-success__ring {
  animation: course-publish-ring 560ms ease forwards 80ms;
}
.course-publish-success.is-animating .course-publish-success__tick {
  animation: course-publish-tick 420ms ease forwards 380ms;
}
.course-publish-success.is-animating .course-publish-success__bar > i {
  animation: course-publish-bar 2.1s linear forwards;
}
.course-publish-success.is-animating .course-publish-success__burst span {
  animation: course-publish-burst 900ms ease-out forwards 320ms;
}
@keyframes course-publish-pop {
  from { opacity: 0; transform: translateY(18px) scale(0.92); }
  to { opacity: 1; transform: none; }
}
.course-publish-success__seal {
  width: 88px;
  height: 88px;
  margin: 0 auto 18px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: radial-gradient(circle at 35% 30%, #ede9fe, #c4b5fd 55%, #8b5cf6);
  box-shadow: 0 12px 28px rgba(109, 85, 220, 0.35), inset 0 1px 0 rgba(255,255,255,.55);
}
.course-publish-success__check { width: 56px; height: 56px; }
.course-publish-success__ring {
  fill: none;
  stroke: rgba(255, 255, 255, 0.55);
  stroke-width: 3;
  stroke-dasharray: 176;
  stroke-dashoffset: 176;
}
.course-publish-success__tick {
  fill: none;
  stroke: #fff;
  stroke-width: 4.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 48;
  stroke-dashoffset: 48;
}
@keyframes course-publish-ring {
  to { stroke-dashoffset: 0; }
}
@keyframes course-publish-tick {
  to { stroke-dashoffset: 0; }
}
.course-publish-success h2 {
  margin: 0 0 8px;
  color: #2a2f74;
  font-size: clamp(22px, 2.4vw, 28px);
  font-weight: 800;
  letter-spacing: 0.02em;
}
.course-publish-success__name {
  margin: 0 0 8px;
  color: #4f46c8;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.45;
  word-break: break-word;
}
.course-publish-success__name:empty { display: none; }
.course-publish-success__hint {
  margin: 0 0 18px;
  font-size: 13px;
}
.course-publish-success__bar {
  height: 4px;
  margin: 0 0 18px;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(99, 102, 241, 0.12);
}
.course-publish-success__bar > i {
  display: block;
  height: 100%;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, #7c6cf0, #60a5fa);
}
@keyframes course-publish-bar {
  to { width: 100%; }
}
.course-publish-success #btn-course-publish-success-go {
  min-width: 168px;
}
.course-publish-success__burst {
  pointer-events: none;
  position: absolute;
  inset: 18% 12% auto;
  height: 120px;
}
.course-publish-success__burst span {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  opacity: 0;
  background: #8b5cf6;
}
.course-publish-success.is-animating .course-publish-success__burst span:nth-child(2) { animation-delay: 360ms; }
.course-publish-success.is-animating .course-publish-success__burst span:nth-child(3) { animation-delay: 400ms; }
.course-publish-success.is-animating .course-publish-success__burst span:nth-child(4) { animation-delay: 380ms; }
.course-publish-success.is-animating .course-publish-success__burst span:nth-child(5) { animation-delay: 420ms; }
.course-publish-success.is-animating .course-publish-success__burst span:nth-child(6) { animation-delay: 440ms; }
.course-publish-success.is-animating .course-publish-success__burst span:nth-child(7) { animation-delay: 460ms; }
.course-publish-success.is-animating .course-publish-success__burst span:nth-child(8) { animation-delay: 480ms; }
.course-publish-success__burst span:nth-child(1) { --dx: -92px; --dy: -48px; background: #a78bfa; }
.course-publish-success__burst span:nth-child(2) { --dx: 78px; --dy: -56px; background: #60a5fa; }
.course-publish-success__burst span:nth-child(3) { --dx: -70px; --dy: 28px; background: #34d399; }
.course-publish-success__burst span:nth-child(4) { --dx: 88px; --dy: 18px; background: #fbbf24; }
.course-publish-success__burst span:nth-child(5) { --dx: -28px; --dy: -78px; width: 6px; height: 6px; background: #818cf8; }
.course-publish-success__burst span:nth-child(6) { --dx: 36px; --dy: -72px; width: 6px; height: 6px; background: #c4b5fd; }
.course-publish-success__burst span:nth-child(7) { --dx: -108px; --dy: -8px; background: #67e8f9; }
.course-publish-success__burst span:nth-child(8) { --dx: 110px; --dy: -12px; background: #f9a8d4; }
@keyframes course-publish-burst {
  0% { opacity: 0; transform: translate(-50%, -50%) scale(0.4); }
  35% { opacity: 1; }
  100% { opacity: 0; transform: translate(calc(-50% + var(--dx)), calc(-50% + var(--dy))) scale(1); }
}
@media (prefers-reduced-motion: reduce) {
  .course-publish-success.is-animating,
  .course-publish-success.is-animating .course-publish-success__ring,
  .course-publish-success.is-animating .course-publish-success__tick,
  .course-publish-success.is-animating .course-publish-success__bar > i,
  .course-publish-success.is-animating .course-publish-success__burst span { animation: none !important; }
  .course-publish-success__ring,
  .course-publish-success__tick { stroke-dashoffset: 0; }
  .course-publish-success.is-animating .course-publish-success__bar > i { width: 100%; }
}