body.document-mode {
  background: var(--surface);
  color: var(--ink);
}

body.document-mode .sidebar, body.document-mode .topbar, body.document-mode #overlay {
  display: none !important;
}

body.document-mode .main {
  margin-left: 0;
  min-height: 100vh;
}

body.document-mode .content {
  width: 100%;
  max-width: none;
  padding: 0;
  margin: 0;
}

body.document-mode .content > footer {
  display: none;
}

.document-workspace {
  min-height: 100vh;
  background: var(--surface);
}

.document-topbar {
  height: 76px;
  padding: 0 32px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--surface);
}

.document-top-left, .document-top-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.document-home {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  color: var(--muted);
  border-radius: 8px;
  flex: none;
}

.document-home:hover {
  background: var(--fill);
  color: var(--blue);
}

.document-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  background: var(--blue-light);
  color: var(--blue);
  border-radius: 8px;
  flex: none;
}

.document-mark .i {
  width: 21px;
  height: 21px;
}

.document-heading {
  display: grid;
  gap: 1px;
  min-width: 0;
}

.document-heading input {
  border: 0;
  outline: 0;
  background: transparent;
  font-size: 16px;
  font-weight: 650;
  color: var(--ink);
  min-width: 0;
  width: min(45vw,440px);
  padding: 0;
}

.document-heading input:focus {
  border: 0;
}

.document-title-top {
  display: flex;
  align-items: center;
  gap: 4px;
  min-width: 0;
}

.document-heading input:hover {
  background: transparent;
}

.document-title-edit {
  border: 0;
  background: transparent;
  color: var(--sub);
  padding: 3px 6px;
  border-radius: 5px;
  cursor: pointer;
}

.document-title-edit:hover, .document-title-edit:focus-visible {
  background: var(--blue-light);
  color: var(--blue);
}

#documentSaveStatus {
  font-size: 12px;
  color: var(--sub);
  line-height: 1.3;
}

#documentSaveStatus.is-error {
  color: var(--red);
}

.document-conflict {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 12px 32px;
  background: var(--orange-bg);
  border-bottom: 1px solid #f3d9a9;
  color: #704b16;
  font-size: 13px;
}

.document-conflict[hidden] {
  display: none;
}

.document-conflict strong {
  font-size: 14px;
}

.document-conflict span {
  flex: 1;
  min-width: 240px;
}

.document-conflict .btn {
  background: var(--surface);
  border-color: #e9c88a;
  color: #704b16;
}

.document-recovery {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 12px 32px;
  background: var(--blue-light);
  border-bottom: 1px solid var(--blue-line);
  color: var(--ink-2);
  font-size: 13px;
}

.document-recovery[hidden] {
  display: none;
}

.document-recovery span {
  flex: 1;
  min-width: 200px;
}

.document-recovery strong {
  font-size: 14px;
}

.document-recovery .btn {
  background: var(--surface);
  border-color: var(--blue-line);
  color: var(--ink-2);
}

.document-top-actions .btn {
  border-radius: 7px;
}

.document-toolbar {
  height: 48px;
  padding: 0 44px;
  border-bottom: 1px solid var(--line-soft);
  display: flex;
  align-items: center;
  gap: 20px;
  color: var(--muted);
  font-size: 13px;
}

.document-toolbar span {
  font-weight: 600;
  color: var(--muted);
}

.document-toolbar button {
  border: 0;
  background: transparent;
  color: var(--muted);
  padding: 6px;
  border-radius: 5px;
}

.document-toolbar button:hover {
  background: var(--blue-light);
}

.document-toolbar a {
  margin-left: auto;
  font-size: 12px;
  color: var(--muted);
}

.document-body {
  display: flex;
  align-items: stretch;
  min-height: calc(100vh - 124px);
}

.document-outline {
  flex: 0 0 218px;
  border-right: 1px solid var(--line-soft);
  position: sticky;
  top: 124px;
  height: calc(100vh - 124px);
  overflow: auto;
  width: 244px;
  padding: 26px 13px;
  transition: width .18s ease,flex-basis .18s ease;
}

.document-outline h2 {
  font-size: 14px;
  color: var(--ink-2);
  margin-bottom: 22px;
}

.document-outline ul {
  list-style: none;
  margin: 0;
  color: var(--muted);
  overflow-wrap: anywhere;
  display: grid;
  gap: 2px;
  padding: 0;
}

.document-outline .doc-outline-empty {
  color: var(--sub);
}

.document-outline {
  flex-basis: 244px;
}

.document-outline-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 0 8px;
  margin-bottom: 16px;
}

.document-outline-header h2 {
  margin: 0;
  font-size: 14px;
}

.document-outline-collapse {
  border: 0;
  background: transparent;
  color: var(--blue);
  border-radius: 6px;
  min-width: 30px;
  height: 30px;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
}

.document-outline-collapse:hover {
  background: var(--blue-light);
}

.document-outline ul {
  font-size: 14px;
}

.document-outline ul[hidden] {
  display: none;
}

.document-outline li {
  padding: 0;
  border: 0;
  min-width: 0;
}

.document-outline-item > ul {
  margin-left: 14px;
  padding-left: 9px;
  border-left: 1px solid var(--line);
}

.document-outline-row {
  display: flex;
  align-items: flex-start;
  min-width: 0;
}

.document-outline-toggle, .document-outline-spacer {
  width: 20px;
  min-width: 20px;
  height: 32px;
  display: grid;
  place-items: center;
  border: 0;
  background: transparent;
  color: var(--sub);
  font-size: 14px;
  padding: 0;
}

.document-outline-toggle {
  cursor: pointer;
  border-radius: 5px;
}

.document-outline-toggle:hover {
  background: var(--blue-light);
  color: var(--blue);
}

.document-outline-link {
  display: block;
  min-width: 0;
  width: 100%;
  text-align: left;
  border: 0;
  background: transparent;
  border-radius: 6px;
  padding: 6px 8px;
  color: var(--muted);
  font: inherit;
  line-height: 1.45;
  overflow-wrap: anywhere;
  cursor: pointer;
}

.document-outline-link:hover {
  background: var(--fill);
  color: var(--blue);
}

.document-outline-link.active {
  background: var(--blue-light);
  color: var(--blue);
  font-weight: 650;
}

.document-outline-root > .document-outline-link {
  font-weight: 700;
  color: var(--blue);
  margin-bottom: 8px;
}

.document-outline-item[data-outline-level="1"] > .document-outline-row > .document-outline-link {
  font-weight: 650;
}

.document-outline.is-collapsed {
  width: 54px;
  flex-basis: 54px;
  padding: 26px 10px;
}

.document-outline.is-collapsed .document-outline-header {
  padding: 0;
  margin: 0;
}

.document-outline.is-collapsed .document-outline-header h2,
.document-outline.is-collapsed #documentOutline {
  display: none;
}

.document-stage {
  flex: 1;
  min-width: 0;
  padding: 52px 7vw 100px;
  overflow: auto;
  background: var(--surface);
}

.document-paper {
  max-width: 800px;
  margin: 0 auto;
  min-height: calc(100vh - 270px);
}

.document-paper-title {
  font-size: 38px;
  line-height: 1.3;
  letter-spacing: -.8px;
  margin: 0 0 19px;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.document-paper-title input {
  display: block;
  width: 100%;
  min-width: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  font-weight: inherit;
  letter-spacing: inherit;
  padding: 3px 8px;
  margin-left: -8px;
  outline: 0;
  text-overflow: ellipsis;
}

.document-paper-title input::placeholder {
  color: var(--placeholder);
  opacity: 1;
}

.document-paper-title input:not([readonly]):hover,
.document-paper-title input:not([readonly]):focus {
  border: 0;
  background: transparent;
  box-shadow: none;
}

.document-paper-title input[readonly] {
  cursor: default;
}

.document-paper-byline {
  display: flex;
  align-items: center;
  gap: 11px;
  color: var(--muted);
  font-size: 15px;
  margin-bottom: 19px;
  line-height: 1.5;
}

.document-author-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #dbe8ff;
  color: var(--blue);
  display: grid;
  place-items: center;
  font-size: 13px;
  font-weight: 700;
  flex: none;
}

.document-author-name {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 14em;
}

.document-byline-divider {
  height: 18px;
  width: 1px;
  background: #d8dde5;
  margin: 0 6px;
}

.document-paper-byline time {
  white-space: nowrap;
}

.document-paper-meta {
  font-size: 13px;
  color: var(--sub);
  margin-bottom: 48px;
}

.document-editor {
  min-height: 55vh;
  outline: 0;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  font-size: 17px;
  line-height: 1.9;
  color: var(--ink);
  padding-top: 25px;
  padding-bottom: 100px;
}

.document-editor[hidden], .document-rendered[hidden] {
  display: none;
}

.document-editor:empty:before {
  content: attr(data-placeholder);
  color: var(--placeholder);
}

.document-rendered {
  font-size: 17px;
  line-height: 1.85;
  color: var(--ink);
  min-height: 55vh;
  padding-top: 15px;
  padding-bottom: 100px;
  overflow-wrap: anywhere;
}

.document-rendered h1,
.document-rendered h2,
.document-rendered h3,
.document-rendered h4,
.document-rendered h5,
.document-rendered h6 {
  color: var(--ink);
  scroll-margin-top: 110px;
  line-height: 1.45;
}

.document-rendered h1 {
  font-size: 31px;
  margin: 32px 0 16px;
}

.document-rendered h2 {
  font-size: 25px;
  margin: 38px 0 14px;
}

.document-rendered h3 {
  font-size: 21px;
  margin: 30px 0 12px;
}

.document-rendered h4, .document-rendered h5, .document-rendered h6 {
  font-size: 18px;
  margin: 24px 0 10px;
}

.document-rendered p {
  margin: 0 0 15px;
}

.document-rendered ul, .document-rendered ol {
  padding-left: 1.6em;
  margin: 8px 0 20px;
}

.document-rendered li {
  margin: 4px 0;
}

.document-rendered blockquote {
  border-left: 3px solid var(--blue-line);
  color: var(--muted);
  padding-left: 16px;
  margin: 20px 0;
}

.document-rendered pre {
  background: var(--bg);
  border-radius: 8px;
  padding: 16px;
  overflow: auto;
  font-size: 14px;
  line-height: 1.6;
}

.document-rendered p code {
  background: var(--fill);
  border-radius: 4px;
  padding: 2px 5px;
  font-size: .9em;
}

.document-rendered [data-doc-editable] {
  cursor: text;
}

.document-rendered [data-doc-editable].is-editing {
  outline: 0;
  border: 0;
  background: transparent;
  min-height: 1.4em;
  white-space: pre-wrap;
  caret-color: var(--blue);
}

.document-rendered [data-doc-editable][data-pending-format="h1"] {
  font-size: 31px;
  font-weight: 700;
}

.document-rendered [data-doc-editable][data-pending-format="h2"] {
  font-size: 25px;
  font-weight: 700;
}

.document-formula-target {
  cursor: pointer;
  border-radius: 4px;
}

.document-formula-target:hover {
  background: var(--blue-light);
}

.document-formula-target:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
}

.document-selection-tools, .document-slash-menu {
  position: fixed;
  z-index: 1100;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(32,49,78,.16);
  padding: 6px;
}

.document-selection-tools[hidden], .document-slash-menu[hidden] {
  display: none;
}

.document-selection-tools {
  display: flex;
  align-items: center;
  gap: 3px;
}

.document-selection-tools button {
  border: 0;
  background: transparent;
  color: var(--muted);
  border-radius: 6px;
  height: 30px;
  min-width: 32px;
  padding: 0 7px;
  cursor: pointer;
}

.document-selection-tools button:hover, .document-slash-menu button:hover {
  background: var(--fill);
  color: var(--blue-dark);
}

.document-slash-menu {
  width: 225px;
  max-height: 280px;
  overflow: auto;
}

.document-slash-heading {
  font-size: 12px;
  color: var(--sub);
  padding: 7px 10px;
}

.document-slash-menu button {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  border: 0;
  border-radius: 6px;
  padding: 8px 10px;
  text-align: left;
  background: transparent;
  color: var(--ink);
  font: inherit;
  cursor: pointer;
}

.document-slash-menu button[hidden] {
  display: none;
}

.document-slash-menu button span {
  width: 28px;
  color: var(--blue);
  font-weight: 700;
  text-align: center;
}

.document-formula-popover {
  position: fixed;
  z-index: 1100;
  width: min(390px,calc(100vw - 24px));
  padding: 14px;
  border: 1px solid var(--line-strong);
  border-radius: 11px;
  background: var(--surface);
  box-shadow: 0 12px 34px rgba(32,49,78,.18);
}

.document-formula-popover[hidden] {
  display: none;
}

.document-formula-popover textarea {
  display: block;
  width: 100%;
  min-height: 82px;
  resize: none;
  padding: 10px;
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  outline: 0;
  font: 15px/1.5 Consolas,monospace;
  color: var(--ink);
}

.document-formula-popover textarea:focus {
  border-color: var(--blue);
}

.document-formula-popover-preview {
  min-height: 36px;
  padding: 12px 3px;
  overflow: auto;
}

.document-formula-popover-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 9px;
}

.document-formula-popover-actions span {
  margin-right: auto;
  color: var(--sub);
  font-size: 12px;
}

.document-formula-popover-actions button {
  border: 0;
  background: transparent;
  color: var(--muted);
  padding: 5px 7px;
  border-radius: 5px;
  cursor: pointer;
}

.document-formula-popover-actions button:last-child {
  color: var(--blue);
  font-weight: 600;
}

.structured-workspace #structuredEditor {
  padding-top: 15px;
}

.structured-workspace #structuredEditor .tiptap {
  min-height: 55vh;
  outline: 0;
  caret-color: var(--blue);
  overflow-wrap: anywhere;
}

.structured-workspace #structuredEditor .tiptap:focus,
.structured-workspace #structuredEditor .tiptap:hover {
  outline: 0;
  box-shadow: none;
  border: 0;
}

.structured-workspace #structuredEditor .tiptap > p:first-child {
  margin-top: 0;
}

.structured-workspace #structuredEditor .tiptap p:empty:first-child::before {
  content: '从这里开始书写…';
  color: var(--placeholder);
  pointer-events: none;
}

.structured-workspace #structuredEditor .tiptap blockquote {
  margin: 20px 0;
  border-left: 3px solid var(--blue-line);
  padding-left: 16px;
  color: var(--muted);
}

.structured-workspace #structuredEditor .tiptap pre {
  background: var(--bg);
  border-radius: 8px;
  padding: 16px;
  overflow: auto;
  font-size: 14px;
  line-height: 1.6;
}

.structured-workspace #structuredEditor .tiptap code {
  background: var(--fill);
  border-radius: 4px;
  padding: 2px 5px;
  font-size: .9em;
}

.structured-workspace #structuredEditor .tiptap .tiptap-mathematics-render {
  cursor: pointer;
  border-radius: 4px;
}

.structured-workspace #structuredEditor .tiptap .tiptap-mathematics-render[data-type="block-math"] {
  display: block;
  text-align: center;
  margin: 22px 0;
  padding: 18px 8px;
  overflow-x: auto;
}

.structured-workspace #structuredEditor .tiptap .tiptap-mathematics-render:hover {
  background: var(--blue-light);
}

.structured-workspace #structuredSlashMenu,
.structured-workspace #structuredSelectionTools {
  z-index: 1200;
}

.structured-workspace #structuredDraftDialog textarea {
  display: block;
  width: 100%;
  min-height: 320px;
  margin-top: 18px;
  font: 13px/1.6 Consolas,monospace;
}

.structured-workspace #structuredFormulaDialog textarea {
  display: block;
  width: 100%;
  min-height: 110px;
  padding: 12px;
  margin: 14px 0;
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  font: 15px/1.6 Consolas,monospace;
}

.structured-workspace #structuredEditor .tiptap a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.structured-workspace #structuredEditor .tiptap .tableWrapper {
  max-width: 100%;
  overflow-x: auto;
  margin: 18px 0;
}

.structured-workspace #structuredEditor .tiptap table {
  border-collapse: collapse;
  table-layout: fixed;
  width: 100%;
  margin: 0;
}

.structured-workspace #structuredEditor .tiptap th,
.structured-workspace #structuredEditor .tiptap td {
  min-width: 90px;
  border: 1px solid var(--line-strong);
  padding: 9px 12px;
  vertical-align: top;
  position: relative;
}

.structured-workspace #structuredEditor .tiptap th {
  background: var(--bg);
  font-weight: 600;
}

.structured-workspace #structuredEditor .tiptap td p,
.structured-workspace #structuredEditor .tiptap th p {
  margin: 0;
}

.structured-workspace #structuredEditor .tiptap .selectedCell {
  background: var(--blue-light);
}

.structured-workspace #structuredEditor [data-document-asset] {
  max-width: 100%;
  margin: 20px 0;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  overflow: hidden;
}

.structured-workspace #structuredEditor [data-document-asset].document-asset-active {
  border-color: var(--focus);
  box-shadow: 0 0 0 2px #e7f0ff;
}

.structured-workspace #structuredEditor [data-document-asset="image"] {
  display: table;
  max-width: 100%;
  padding: 8px;
}

.structured-workspace #structuredEditor [data-document-asset="image"] img {
  display: block;
  max-width: 100%;
  max-height: 560px;
  height: auto;
  object-fit: contain;
  border-radius: 5px;
}

.structured-workspace #structuredEditor [data-document-asset="image"] figcaption {
  font-size: 13px;
  line-height: 1.5;
  color: var(--muted);
  padding: 8px 3px 1px;
  text-align: center;
}

.structured-workspace #structuredEditor [data-document-asset="file"] {
  width: min(480px,100%);
}

.structured-workspace #structuredEditor [data-document-asset="file"] a {
  display: block;
  padding: 15px 18px;
  text-decoration: none;
  color: var(--ink-2);
  font-size: 15px;
  font-weight: 600;
  overflow-wrap: anywhere;
}

.structured-workspace #structuredEditor [data-document-asset="file"] a:hover {
  background: var(--bg);
  color: var(--blue);
}

.document-asset-actions {
  position: fixed;
  z-index: 1250;
  display: flex;
  gap: 3px;
  padding: 5px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 8px 24px rgba(32,49,78,.15);
}

.document-asset-actions[hidden] {
  display: none;
}

.document-asset-actions button {
  border: 0;
  border-radius: 5px;
  background: transparent;
  color: var(--muted);
  padding: 6px 10px;
  cursor: pointer;
}

.document-asset-actions button:hover {
  background: var(--fill);
  color: var(--blue);
}

.document-asset-dialog {
  width: min(480px,calc(100vw - 32px));
  max-height: min(75vh,650px);
  padding: 22px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  color: var(--ink);
  box-shadow: 0 18px 55px rgba(29,45,72,.2);
}

.document-asset-dialog::backdrop {
  background: rgba(25,39,64,.28);
}

.document-asset-dialog strong {
  display: block;
  margin-bottom: 16px;
  font-size: 19px;
}

.document-asset-dialog .document-asset-divider {
  margin: 18px 0 10px;
  color: var(--sub);
  font-size: 13px;
}

.document-asset-dialog input[type=search] {
  box-sizing: border-box;
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  font: inherit;
}

.document-asset-list {
  max-height: 250px;
  margin: 10px 0 16px;
  overflow: auto;
}

.document-asset-list button {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 10px;
  border: 0;
  border-radius: 6px;
  background: var(--surface);
  text-align: left;
  color: var(--ink-2);
  font: inherit;
  cursor: pointer;
}

.document-asset-list button:hover {
  background: var(--blue-light);
  color: var(--blue);
}

.document-asset-list button span {
  color: var(--blue);
  font-size: 20px;
}

.document-asset-list p {
  color: var(--sub);
  font-size: 14px;
}

.structured-workspace #structuredEditor .document-reference {
  display: inline-flex;
  max-width: min(100%,420px);
  vertical-align: baseline;
  align-items: center;
  border-radius: 6px;
  background: var(--blue-light);
  padding: 1px 6px;
  margin: 0 2px;
  line-height: 1.5;
  white-space: nowrap;
}

.structured-workspace #structuredEditor .document-reference a {
  display: inline-block;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--blue);
  text-decoration: none;
  font-size: .92em;
  font-weight: 600;
}

.structured-workspace #structuredEditor .document-reference:hover {
  background: var(--blue-light);
}

.structured-workspace #structuredEditor .document-reference a:not([href]) {
  color: var(--sub);
  cursor: default;
}

.document-reference-list {
  max-height: 320px;
  overflow: auto;
  margin: 12px 0 16px;
}

.document-reference-list button {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 9px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  text-align: left;
  color: var(--ink-2);
  font: inherit;
  cursor: pointer;
}

.document-reference-list button:hover {
  background: var(--blue-light);
}

.document-reference-list button span {
  color: var(--blue);
}

.document-reference-list button strong {
  margin: 0;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 14px;
  font-weight: 600;
}

.document-reference-list button small {
  margin-left: auto;
  color: var(--sub);
  white-space: nowrap;
  font-size: 12px;
}

.document-reference-list p {
  color: var(--sub);
  font-size: 14px;
}

.document-link-dialog {
  width: min(430px,calc(100vw - 32px));
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  padding: 22px;
  background: var(--surface);
  color: var(--ink);
  box-shadow: 0 18px 55px rgba(29,45,72,.2);
}

.document-link-dialog::backdrop {
  background: rgba(25,39,64,.28);
}

.document-link-dialog strong {
  display: block;
  font-size: 18px;
  margin-bottom: 14px;
}

.document-link-dialog input {
  display: block;
  width: 100%;
  box-sizing: border-box;
  padding: 11px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  font: inherit;
}

.document-link-dialog > div {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 16px;
}

.document-local-dialog {
  width: min(740px,calc(100vw - 32px));
  max-height: calc(100vh - 40px);
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  padding: 24px;
  background: var(--surface);
  color: var(--ink);
  box-shadow: 0 18px 55px rgba(29,45,72,.2);
}

.document-local-dialog::backdrop {
  background: rgba(25,39,64,.32);
}

.document-local-head, .document-local-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.document-local-head strong {
  font-size: 20px;
}

.document-local-head button {
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 26px;
  cursor: pointer;
}

.document-local-dialog p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.6;
  margin: 10px 0 18px;
}

.document-local-dialog label {
  display: block;
  color: var(--muted);
  font-size: 13px;
  margin: 12px 0 6px;
}

.document-local-dialog input, .document-local-dialog textarea {
  display: block;
  width: 100%;
  margin-top: 7px;
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  padding: 10px;
  background: var(--bg);
  color: var(--ink);
  font: 14px/1.6 inherit;
}

.document-local-dialog textarea {
  min-height: 220px;
  max-height: 45vh;
  resize: vertical;
  font-family: Consolas,monospace;
}

.document-local-actions {
  justify-content: flex-end;
  margin-top: 18px;
}

.document-math-block {
  text-align: center;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 18px 8px;
  margin: 22px 0;
  scroll-margin-top: 110px;
}

.document-math-fallback {
  color: var(--red);
}

.document-preview-empty {
  color: var(--sub);
}

.document-equation-dialog {
  width: min(620px,calc(100vw - 32px));
  max-height: calc(100vh - 40px);
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  padding: 22px;
  background: var(--surface);
  color: var(--ink);
  box-shadow: 0 18px 55px rgba(29,45,72,.2);
}

.document-equation-dialog::backdrop {
  background: rgba(25,39,64,.32);
}

.document-equation-head, .document-equation-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.document-equation-head strong {
  font-size: 20px;
}

.document-equation-head button {
  border: 0;
  background: transparent;
  font-size: 26px;
  color: var(--muted);
  cursor: pointer;
}

.document-equation-kinds {
  display: flex;
  gap: 24px;
  margin: 20px 0 12px;
}

.document-equation-kinds label {
  display: flex;
  align-items: center;
  gap: 7px;
  cursor: pointer;
}

#documentEquationSource {
  display: block;
  width: 100%;
  min-height: 110px;
  padding: 12px;
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  resize: none;
  font: 15px/1.6 Consolas,monospace;
  color: var(--ink);
  outline: none;
}

#documentEquationSource:focus {
  border-color: var(--blue);
}

.document-equation-templates {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin: 12px 0 16px;
}

.document-equation-templates button {
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: var(--bg);
  padding: 5px 10px;
  color: var(--muted);
  cursor: pointer;
}

.document-equation-templates button:hover {
  border-color: var(--focus);
  color: var(--blue);
}

.document-equation-preview {
  min-height: 98px;
  display: grid;
  place-items: center;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  padding: 14px;
  margin-bottom: 18px;
}

.document-equation-placeholder {
  color: var(--sub);
}

.document-equation-actions {
  justify-content: flex-end;
}

.document-sheet-scroll {
  max-width: 1200px;
  margin: 0 auto;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 7px;
}

.document-sheet {
  border-collapse: collapse;
  width: 100%;
  min-width: 650px;
  table-layout: fixed;
}

.document-sheet th, .document-sheet td {
  border: 1px solid var(--line);
  height: 38px;
  padding: 0;
}

.document-sheet th {
  background: var(--bg);
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
  width: 46px;
  text-align: center;
}

.document-sheet td input {
  width: 100%;
  height: 37px;
  min-width: 100px;
  border: 0;
  background: transparent;
  padding: 5px 9px;
  font-size: 13px;
  outline: 0;
}

.document-sheet td:focus-within {
  outline: 2px solid var(--blue);
  outline-offset: -2px;
  background: var(--bg);
}

.document-slides {
  display: grid;
  grid-template-columns: 190px minmax(0,1fr);
  gap: 30px;
  max-width: 1240px;
  margin: auto;
}

.document-slide-list {
  display: grid;
  align-content: start;
  gap: 10px;
}

.document-slide-thumb, .document-slide-add {
  min-height: 88px;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  border-radius: 8px;
  text-align: left;
  padding: 12px;
  color: var(--ink-2);
}

.document-slide-thumb.active {
  border-color: var(--blue);
  box-shadow: 0 0 0 2px #dce9ff;
}

.document-slide-thumb span {
  display: block;
  font-size: 11px;
  color: var(--sub);
}

.document-slide-thumb strong {
  display: block;
  margin-top: 12px;
  font-size: 13px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.document-slide-add {
  min-height: 42px;
  text-align: center;
  color: var(--blue);
}

.document-slide-stage {
  min-width: 0;
  min-height: 0;
  aspect-ratio: 16/9;
  box-shadow: 0 10px 32px rgba(39,58,91,.12);
  border: 1px solid var(--line);
  padding: 8%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 24px;
}

.document-slide-stage input, .document-slide-stage textarea {
  border: 0;
  outline: 0;
  width: 100%;
  background: transparent;
  color: var(--ink);
  resize: none;
}

.document-slide-stage input {
  font-size: clamp(28px,3vw,52px);
  font-weight: 700;
}

.document-slide-stage textarea {
  font-size: clamp(17px,1.5vw,25px);
  line-height: 1.6;
  min-height: 180px;
}

@media (max-width: 850px) {
  .document-topbar {
    padding: 0 16px;
  }
  .document-top-actions {
    gap: 6px;
  }
  .document-outline {
    width: 150px;
    flex-basis: 150px;
    padding: 28px 14px;
  }
  .document-stage {
    padding: 38px 4vw 70px;
  }
  .document-slides {
    grid-template-columns: 120px minmax(0,1fr);
    gap: 14px;
  }
}

@media (max-width: 600px) {
  .document-topbar {
    height: 66px;
  }
  .document-heading input {
    width: 36vw;
    font-size: 14px;
  }
  .document-top-actions .btn {
    padding: 6px 8px;
    font-size: 12px;
  }
  .document-toolbar {
    height: 42px;
    padding: 0 15px;
  }
  .document-outline {
    display: none;
  }
  .document-stage {
    padding: 34px 22px;
  }
  .document-paper-title {
    font-size: 29px;
  }
  .document-paper-meta {
    margin-bottom: 32px;
  }
  .document-editor {
    font-size: 16px;
  }
  .document-slides {
    grid-template-columns: 1fr;
  }
  .document-slide-list {
    display: flex;
    overflow: auto;
  }
  .document-slide-thumb {
    min-width: 115px;
    min-height: 74px;
  }
  .document-slide-add {
    min-width: 105px;
  }
  .document-slide-stage {
    aspect-ratio: auto;
    min-height: 300px;
  }
}

@media (max-width: 600px) {
  .document-conflict {
    padding: 12px 16px;
  }
  .document-conflict span {
    min-width: 100%;
  }
}

@media (max-width: 600px) {
  .document-recovery {
    padding: 12px 16px;
  }
  .document-recovery span {
    min-width: 100%;
  }
}

.document-presence {
  color: var(--muted);
  font-size: 13px;
  white-space: nowrap;
}