:root {
  --workbench-bg: #f6f7fb;
  --workbench-surface: #ffffff;
  --workbench-border: #e6e8ec;
  --workbench-muted: #6b7280;
  --workbench-title: #111827;
}

body {
  background-color: var(--workbench-bg);
  background-image: none;
}

.page-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.status-chip {
  border: 1px solid var(--workbench-border);
  background: #fff;
  color: var(--workbench-muted);
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 11px;
}

.status-chip.running {
  color: #1d4ed8;
  border-color: #bfdbfe;
  background: #eff6ff;
}

.status-chip.done {
  color: #047857;
  border-color: #a7f3d0;
  background: #ecfdf5;
}

.status-chip.error {
  color: #b91c1c;
  border-color: #fecaca;
  background: #fef2f2;
}

.workbench-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: 20px;
}

@media (max-width: 1080px) {
  .workbench-grid {
    grid-template-columns: 1fr;
  }
}

.panel {
  background: var(--workbench-surface);
  border-radius: 12px;
  padding: 18px;
}

.panel-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--workbench-title);
  margin-bottom: 12px;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 12px;
}

.panel-head-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.head-meta {
  font-size: 12px;
  color: var(--workbench-muted);
}

.panel-toggle-btn {
  min-height: 32px;
  padding: 0 12px;
  font-size: 12px;
  white-space: nowrap;
}

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

.reference-strip {
  margin-top: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  min-height: 44px;
}

.reference-empty {
  font-size: 12px;
  color: var(--workbench-muted);
}

.reference-item {
  width: 64px;
  height: 64px;
  border-radius: 12px;
  border: 1px solid var(--workbench-border);
  background: #f3f4f6;
  overflow: hidden;
  position: relative;
  cursor: pointer;
}

.reference-item.is-primary {
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.35);
  border-color: #60a5fa;
}

.reference-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.reference-index-badge {
  position: absolute;
  left: 4px;
  right: 4px;
  bottom: 4px;
  padding: 2px 4px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.78);
  color: #f8fafc;
  font-size: 9px;
  font-weight: 700;
  line-height: 1.2;
  pointer-events: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-align: center;
}

.reference-primary-badge {
  position: absolute;
  left: 4px;
  bottom: 4px;
  font-size: 10px;
  line-height: 1;
  padding: 3px 5px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.78);
  color: #fff;
  pointer-events: none;
}

.reference-remove-btn {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 18px;
  height: 18px;
  border: none;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.78);
  color: #fff;
  font-size: 12px;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.reference-add-slot {
  width: 64px;
  height: 64px;
  border-radius: 12px;
  border: 1px dashed var(--workbench-border);
  background: #fff;
  color: var(--workbench-muted);
  font-size: 22px;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.parent-quick-row {
  margin-top: 10px;
}

.parent-quick-input-wrap {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
}

@media (max-width: 680px) {
  .parent-quick-input-wrap {
    grid-template-columns: 1fr;
  }
}

.file-name {
  font-size: 12px;
  color: var(--workbench-muted);
  word-break: normal;
}

.preview-shell {
  margin-top: 12px;
  border: 1px solid var(--workbench-border);
  border-radius: 12px;
  min-height: 240px;
  background: #f9fafb;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
}

.preview-shell.dragover {
  border-color: #60a5fa;
  background: #eff6ff;
  box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.22);
}

.current-gallery {
  width: 100%;
  height: 100%;
  min-height: 240px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 8px;
  box-sizing: border-box;
  position: relative;
  z-index: 1;
}

.current-gallery.hidden {
  display: none;
}

.current-gallery[data-count="2"] {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.current-gallery[data-count="3"],
.current-gallery[data-count="4"] {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.current-gallery-item {
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--workbench-border);
  background: #0b1220;
  min-height: 210px;
}

.current-gallery-item img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
}

.preview-empty {
  color: var(--workbench-muted);
  font-size: 13px;
  position: relative;
  z-index: 2;
}

.drop-hint {
  position: absolute;
  left: 10px;
  right: 10px;
  bottom: 10px;
  z-index: 3;
  font-size: 12px;
  color: #334155;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid #dbe2ea;
  border-radius: 8px;
  padding: 6px 10px;
  text-align: center;
  backdrop-filter: blur(2px);
}

.meta-grid {
  margin-top: 12px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

@media (max-width: 680px) {
  .meta-grid {
    grid-template-columns: 1fr;
  }
}

.meta-item {
  border: 1px solid var(--workbench-border);
  border-radius: 10px;
  padding: 10px;
}

.meta-label {
  font-size: 11px;
  color: var(--workbench-muted);
  margin-bottom: 4px;
}

.meta-value {
  font-size: 12px;
  color: var(--workbench-title);
  word-break: break-all;
}

.field {
  margin-top: 12px;
}

.field-label {
  display: block;
  font-size: 11px;
  color: var(--accents-4);
  margin-bottom: 6px;
}

.prompt-editor-shell {
  position: relative;
  min-height: 180px;
  resize: vertical;
  overflow: hidden;
}

.prompt-rich-input {
  position: absolute;
  inset: 0;
  z-index: 2;
  width: 100%;
  border: 1px solid var(--workbench-border);
  border-radius: 12px;
  background: #fff;
  color: var(--workbench-title);
  padding: 14px 14px 56px;
  line-height: 1.75;
  font-size: 14px;
  white-space: pre-wrap;
  word-break: break-word;
  overflow-wrap: anywhere;
  overflow-x: hidden;
  overflow-y: auto;
  scrollbar-width: thin;
  outline: none;
  cursor: text;
  box-sizing: border-box;
}

.prompt-rich-input:focus {
  border-color: #60a5fa;
  box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.18);
}

.prompt-rich-input.is-disabled {
  opacity: 0.72;
  cursor: not-allowed;
}

.prompt-rich-input.is-empty::before {
  content: attr(data-placeholder);
  color: #9ca3af;
  pointer-events: none;
}

.prompt-mention-chip {
  display: inline-flex;
  max-width: 100%;
  margin: 0 3px;
  vertical-align: middle;
  user-select: all;
  -webkit-user-select: all;
  cursor: pointer;
  align-items: center;
}

.prompt-mention-chip.is-active {
  box-shadow: 0 0 0 2px rgba(96, 165, 250, 0.5);
  border-radius: 8px;
}

.prompt-mention-chip-inner {
  display: inline-flex;
  align-items: center;
  height: 25px;
  overflow: hidden;
  border: 1px solid #d7dce3;
  border-radius: 8px;
  background: #f3f4f6;
  color: #111827;
}

.prompt-mention-chip-thumb-wrap {
  position: relative;
  width: 25px;
  height: 25px;
  flex: none;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.prompt-mention-chip-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  flex: none;
}

.prompt-mention-chip-label {
  padding: 0 8px 0 6px;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  color: #111827;
}

.prompt-mention-menu {
  position: absolute;
  left: 12px;
  top: 12px;
  z-index: 20;
  min-width: 220px;
  max-width: min(320px, calc(100% - 24px));
  border: 1px solid var(--workbench-border);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.2);
  padding: 8px;
  backdrop-filter: blur(10px);
}

.prompt-mention-item {
  width: 100%;
  border: none;
  background: transparent;
  color: inherit;
  display: flex;
  align-items: center;
  gap: 10px;
  text-align: left;
  border-radius: 12px;
  padding: 8px 10px;
  cursor: pointer;
}

.prompt-mention-item:hover,
.prompt-mention-item.is-active {
  background: rgba(15, 23, 42, 0.08);
}

.prompt-mention-thumb {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  object-fit: cover;
  flex: none;
}

.prompt-mention-label {
  font-size: 15px;
  font-weight: 700;
  color: var(--workbench-title);
}

.prompt-textarea-proxy {
  position: relative !important;
  z-index: 1 !important;
  width: 100% !important;
  height: 100% !important;
  min-height: 180px !important;
  opacity: 0 !important;
  pointer-events: none !important;
  resize: none !important;
  caret-color: transparent !important;
}

.prompt-editor-shell > .prompt-enhance-wrap {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 10;
  pointer-events: none;
}

.prompt-editor-shell > .prompt-enhance-wrap > .prompt-enhance-actions {
  position: absolute !important;
  right: 12px !important;
  bottom: 12px !important;
  pointer-events: auto;
  z-index: 11;
}

.form-textarea {
  min-height: 96px;
  resize: vertical;
}

/* 确保提示词增强按钮固定在输入框内部右下角 (通用 field 兼容) */
.field .prompt-enhance-wrap {
  width: 100%;
  position: relative;
}

.field .prompt-enhance-wrap > textarea.form-textarea {
  width: 100%;
  display: block;
  box-sizing: border-box;
  min-height: 150px;
  padding-left: 12px;
  padding-right: calc(var(--pe-action-width, 104px) + 12px);
  padding-bottom: 48px;
}

.field .prompt-enhance-wrap > .prompt-enhance-actions {
  position: absolute;
  right: 10px;
  bottom: 10px;
  z-index: 3;
}

.action-row {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.action-row.action-row-inline {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.edit-progress-wrap {
  margin-top: 10px;
  width: 100%;
  height: 9px;
  border-radius: 999px;
  background: #eef1f5;
  overflow: hidden;
  display: none;
}

.edit-progress-wrap.active {
  display: block;
}

.edit-progress-wrap.is-success {
  background: #d1fae5;
}

.edit-progress-wrap.is-error {
  background: #fee2e2;
}

.edit-progress-bar {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, #3b82f6, #2563eb);
  border-radius: inherit;
  transition: width .16s linear;
}

.edit-progress-wrap.is-success .edit-progress-bar {
  background: linear-gradient(90deg, #10b981, #059669);
}

.edit-progress-wrap.is-error .edit-progress-bar {
  background: linear-gradient(90deg, #ef4444, #dc2626);
}

.edit-progress-text {
  margin-top: 6px;
  font-size: 12px;
  color: var(--workbench-muted);
  display: none;
}

.edit-progress-text.active {
  display: block;
}

@media (max-width: 680px) {
  .action-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .field .prompt-enhance-wrap > textarea.form-textarea {
    padding-right: calc(var(--pe-action-width, 92px) + 12px);
    padding-bottom: 76px;
  }

  .field .prompt-enhance-wrap > .inline-submit-btn,
  .field .prompt-enhance-wrap > .prompt-enhance-actions {
    height: var(--pe-action-height, 28px);
  }

  .field .prompt-enhance-wrap > .inline-submit-btn {
    width: var(--pe-action-width, 92px);
    min-width: var(--pe-action-width, 92px);
    padding: 0 10px;
  }

  .field .prompt-enhance-wrap > .prompt-enhance-actions {
    width: var(--pe-action-width, 92px);
    min-width: var(--pe-action-width, 92px);
    bottom: 40px;
  }

  .field .prompt-enhance-wrap > .inline-submit-btn {
    bottom: 8px;
  }

}

.empty-state {
  border: 1px dashed var(--workbench-border);
  border-radius: 10px;
  color: var(--workbench-muted);
  font-size: 12px;
  text-align: center;
  padding: 18px;
}

.history-list {
  margin-top: 12px;
  display: grid;
  gap: 10px;
  max-height: 680px;
  overflow: auto;
  padding-right: 4px;
}

.history-list::-webkit-scrollbar {
  width: 6px;
}

.history-list::-webkit-scrollbar-thumb {
  background: #d1d5db;
  border-radius: 999px;
}

.history-item {
  border: 1px solid var(--workbench-border);
  border-radius: 10px;
  padding: 10px;
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 10px;
  background: #fff;
}

.history-thumb {
  width: 84px;
  height: 84px;
  border-radius: 8px;
  object-fit: cover;
  background: #f3f4f6;
}

.history-main {
  min-width: 0;
}

.history-line {
  font-size: 11px;
  color: var(--workbench-muted);
  line-height: 1.45;
}

.history-line strong {
  color: var(--workbench-title);
  font-weight: 600;
}

.history-prompt {
  margin-top: 4px;
  font-size: 12px;
  color: var(--workbench-title);
  line-height: 1.5;
  word-break: break-word;
}

html[data-theme='dark'] .history-item {
  background: #111821;
  border-color: #324154;
}

html[data-theme='dark'] .prompt-rich-input {
  background: #111821;
  border-color: #324154;
  color: #eef4ff;
}

html[data-theme='dark'] .prompt-rich-input.is-empty::before {
  color: #7f90a6;
}

html[data-theme='dark'] .prompt-mention-menu {
  background: rgba(17, 24, 33, 0.96);
  border-color: #324154;
  box-shadow: 0 24px 54px rgba(2, 6, 23, 0.46);
}

html[data-theme='dark'] .prompt-mention-chip {
  color: #eef4ff;
}

html[data-theme='dark'] .prompt-mention-chip-inner {
  border-color: rgba(148, 163, 184, 0.3);
  background: #1f2937;
  color: #eef4ff;
}

html[data-theme='dark'] .prompt-mention-chip-label {
  color: #eef4ff;
}

html[data-theme='dark'] .prompt-mention-item:hover,
html[data-theme='dark'] .prompt-mention-item.is-active {
  background: rgba(148, 163, 184, 0.12);
}

html[data-theme='dark'] .prompt-mention-label {
  color: #eef4ff;
}

html[data-theme='dark'] .reference-item {
  background: #111821;
  border-color: #324154;
}

html[data-theme='dark'] .reference-index-badge {
  background: rgba(2, 6, 23, 0.82);
  color: #e5eefc;
}

html[data-theme='dark'] .reference-add-slot {
  background: #111821;
  border-color: #324154;
  color: #b7c4d4;
}

html[data-theme='dark'] .history-line {
  color: #b7c4d4;
}

html[data-theme='dark'] .history-line strong {
  color: #eef4ff;
}

html[data-theme='dark'] .history-prompt {
  color: #e8effa;
}

.history-actions {
  margin-top: 8px;
  display: flex;
  gap: 8px;
}

.history-actions .geist-button-outline {
  height: 28px;
  font-size: 11px;
  padding: 0 10px;
}

@media (max-width: 900px) {
  #selectSeedBtn,
  #applyParentBtn,
  .action-row {
    display: none !important;
  }

  .workbench-grid {
    gap: 12px;
  }

  .panel {
    padding: 12px;
    border-radius: 12px;
  }

  .preview-shell {
    min-height: 170px;
    margin-top: 10px;
  }

  .drop-hint {
    font-size: 11px;
    padding: 4px 8px;
    left: 8px;
    right: 8px;
    bottom: 8px;
  }

  .form-textarea {
    min-height: 72px;
  }

  .history-list {
    max-height: 42dvh;
    gap: 8px;
  }

  .history-item {
    grid-template-columns: 60px 1fr;
    gap: 8px;
    padding: 8px;
  }

  .history-thumb {
    width: 60px;
    height: 60px;
  }
}

@media (max-width: 480px) {
  .history-item {
    grid-template-columns: 1fr;
  }

  .history-thumb {
    width: 100%;
    height: auto;
    max-height: 170px;
  }
}

/* ─── Workbench 移动端底部 Sticky 操作栏 ─── */
.wb-sticky-bar {
  display: none; /* 桌面端不显示 */
}

@media (max-width: 900px) {
  /* 防止内容被 sticky bar 遮挡 */
  body {
    padding-bottom: 72px;
  }

  /* -- Sticky Bar 本体 -- */
  .wb-sticky-bar {
    display: block;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 200;
    padding-bottom: env(safe-area-inset-bottom, 0px);
    background: var(--workbench-surface, #fff);
    border-top: 1px solid var(--workbench-border, #e6e8ec);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.07);
  }

  html[data-theme='dark'] .wb-sticky-bar {
    background: #111821;
    border-top-color: #2b3440;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.35);
  }

  /* -- Bar 内部：左图标区 + 右主按钮 -- */
  .wb-sticky-bar-inner {
    display: flex;
    align-items: center;
    gap: 8px;
    height: 56px;
    padding: 0 12px;
  }

  /* -- 左图标组 -- */
  .wb-icon-group {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
  }

  /* -- 单个图标按钮 -- */
  .wb-icon-btn {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    border-radius: 10px;
    border: 1px solid var(--workbench-border, #e6e8ec);
    background: transparent;
    color: var(--workbench-muted, #6b7280);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
  }

  .wb-icon-btn:active {
    background: #f3f4f6;
  }

  html[data-theme='dark'] .wb-icon-btn {
    border-color: #2b3440;
    color: #8fa3bc;
  }

  html[data-theme='dark'] .wb-icon-btn:active {
    background: #1a2130;
  }

  /* 危险操作（清空历史）提示色 */
  .wb-icon-btn--danger:active {
    color: #dc2626;
    border-color: #fca5a5;
    background: #fef2f2;
  }

  /* -- 右侧执行编辑主按钮 -- */
  .wb-submit-btn {
    flex: 1;
    height: 40px;
    font-size: 14px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    border-radius: 8px;
    min-width: 0;
    transition:
      background-color .22s ease,
      color .22s ease,
      border-color .22s ease,
      box-shadow .22s ease,
      transform .18s ease;
  }

  .wb-submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
  }

  .wb-submit-btn.is-editing {
    background: #fee2e2 !important;
    color: #ef4444 !important;
    border: 1px solid #fecaca !important;
    box-shadow: none;
  }

  .wb-submit-btn.is-editing:active {
    transform: translateY(1px);
  }
}

/* ============================
   图片工作台 移动端 Sticky Bar（<=900px）
   PC 端默认隐藏
   ============================ */
.wb-sticky-bar {
  display: none !important;
}

@media (max-width: 900px) {
  body {
    padding-bottom: 72px !important;
  }

  .wb-sticky-bar {
    display: flex !important;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 200;
    background: #fff;
    border-top: 1px solid var(--border);
    box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.07);
    padding: 10px 16px;
    padding-bottom: calc(10px + env(safe-area-inset-bottom, 0px));
  }

  .wb-sticky-bar-inner {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
  }

  .wb-icon-group {
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1;
  }

  /* 图标按钮：与 im-icon-btn 规范对齐（40px） */
  .wb-icon-btn {
    width: 40px;
    height: 40px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: #fff;
    color: var(--fg);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    flex-shrink: 0;
    transition: background .15s ease;
    padding: 0;
  }

  .wb-icon-btn:active {
    background: var(--accents-1);
  }

  .wb-icon-btn--danger {
    color: #ef4444;
    border-color: #fecaca;
  }

  .wb-icon-btn--danger:active {
    background: #fef2f2;
  }

  /* 主按钮：与 im-main-btn 规范对齐（40px / 14px / 600） */
  .wb-submit-btn {
    height: 40px !important;
    font-size: 14px !important;
    font-weight: 600 !important;
    border-radius: 10px !important;
    padding: 0 18px !important;
    min-width: 96px !important;
    flex-shrink: 0;
    margin-left: auto;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    justify-content: center;
    transition:
      background-color .22s ease,
      color .22s ease,
      border-color .22s ease,
      box-shadow .22s ease,
      transform .18s ease;
  }

  .wb-submit-btn.is-editing {
    background: #fee2e2 !important;
    color: #ef4444 !important;
    border: 1px solid #fecaca !important;
    box-shadow: none;
  }

  .wb-submit-btn.is-editing:active {
    transform: translateY(1px);
  }

  /* 暗色主题 */
  html[data-theme='dark'] .wb-sticky-bar {
    background: #111821;
    border-top-color: #2b3440;
  }

  html[data-theme='dark'] .wb-icon-btn {
    background: #1a2330;
    border-color: #3b4654;
    color: #c9d6e5;
  }

  html[data-theme='dark'] .wb-icon-btn:active {
    background: #243244;
  }

  html[data-theme='dark'] .wb-submit-btn.is-editing {
    background: #2d1414 !important;
    color: #f87171 !important;
    border-color: #7f1d1d !important;
  }
}