:root {
  color-scheme: light;
  --bg: #f4f6f8;
  --panel: #ffffff;
  --panel-soft: #f8fafc;
  --ink: #222426;
  --muted: #68707a;
  --line: #d8dee6;
  --line-soft: #e7edf3;
  --accent: #1d6f5f;
  --accent-strong: #164d43;
  --accent-soft: #e3f0ec;
  --warn: #a85f00;
  --bad: #a43b31;
  --source: #73777f;
  --mark: #fff0a6;
  --shadow: 0 18px 42px rgba(25, 34, 45, 0.18);
  --hover-bg: #eef3f6;
  --badge-bg: #e8edf2;
  --success-soft: #e9f5ee;
  --marked-soft: #fff0d5;
  --toast-bg: #1f2933;
  --topbar-offset: 78px;
  --topbar-live-height: 78px;
  --reader-bg: #f4f6f8;
  --reader-paper: #ffffff;
  --reader-ink: #222426;
  --reader-source: #73777f;
  --reader-border: #e7edf3;
  --reader-font-size: 17px;
  --reader-line-height: 1.95;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", sans-serif;
  font-size: 15px;
  line-height: 1.65;
}

body[data-reader-theme="eye"] {
  --reader-bg: #edf4ed;
  --reader-paper: #fbfff8;
  --reader-ink: #243127;
  --reader-source: #6a7468;
  --reader-border: #d7e4d4;
  --bg: #edf4ed;
}

body[data-reader-theme="night"] {
  color-scheme: dark;
  --reader-bg: #171614;
  --reader-paper: #211f1b;
  --reader-ink: #e8e0d2;
  --reader-source: #aaa192;
  --reader-border: #38342d;
  --bg: #171614;
  --panel: #24221e;
  --panel-soft: #2c2924;
  --ink: #ece5d8;
  --muted: #aaa192;
  --line: #3c382f;
  --line-soft: #332f28;
  --accent: #80bfa8;
  --accent-strong: #b2dbc8;
  --accent-soft: #243d34;
  --source: #aaa192;
  --mark: #6b5b1a;
  --hover-bg: #302d27;
  --badge-bg: #353128;
  --success-soft: #243d34;
  --marked-soft: #4a381e;
  --toast-bg: #11100e;
  --shadow: 0 18px 42px rgba(0, 0, 0, 0.42);
}

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

.topbar {
  height: var(--topbar-offset);
  padding: 10px 18px;
  display: grid;
  grid-template-columns: auto minmax(240px, 1fr) auto auto;
  align-items: center;
  gap: 14px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}

body:not(.startOpen) .topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 14;
  transform: translateY(calc(8px - var(--topbar-offset)));
  transition: transform 160ms ease, box-shadow 160ms ease;
  box-shadow: 0 8px 24px rgba(25, 34, 45, 0);
}

body:not(.startOpen).chromeVisible .topbar,
body:not(.startOpen) .topbar:hover,
body:not(.startOpen) .topbar:focus-within {
  transform: translateY(0);
  box-shadow: var(--shadow);
}

.brandBlock {
  min-width: 0;
}

.bookshelfNavButton {
  font-weight: 700;
  border-color: var(--accent);
  color: var(--accent-strong);
  background: var(--accent-soft);
}

.bookshelfNavButton.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

h1 {
  margin: 0;
  font-size: 19px;
  font-weight: 700;
}

.versionBadge {
  display: inline-flex;
  align-items: center;
  min-height: 20px;
  margin-left: 6px;
  padding: 0 6px;
  border-radius: 6px;
  background: var(--badge-bg);
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  vertical-align: middle;
}

#sessionMeta {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 12px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.modeTabs {
  display: inline-grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--panel-soft);
}

.modeButton {
  border: 0;
  border-radius: 0;
  background: transparent;
  min-width: 86px;
}

.modeButton.active {
  background: var(--accent);
  color: #ffffff;
}

.toolbar button.active {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.toolbar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

button {
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink);
  min-height: 34px;
  padding: 5px 11px;
  border-radius: 6px;
  cursor: pointer;
}

button:hover {
  border-color: var(--accent);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

button.primary,
#saveBtn,
#quickSaveBtn,
#exportBtn {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

button.primary:hover,
#saveBtn:hover,
#quickSaveBtn:hover,
#exportBtn:hover {
  background: var(--accent-strong);
}

.startScreen,
.bookshelfScreen,
.translationScreen {
  min-height: calc(100vh - var(--topbar-offset));
  padding: 28px;
  background: var(--bg);
}

.startPanel,
.translationPanel {
  max-width: 980px;
  margin: 0 auto;
  display: grid;
  gap: 16px;
}

.libraryShell {
  width: min(1480px, 100%);
  min-height: calc(100vh - var(--topbar-offset) - 56px);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 248px minmax(0, 1fr);
  gap: 28px;
}

.librarySidebar {
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr) auto;
  gap: 14px;
  min-height: 0;
  padding: 8px 0;
}

.libraryBrandRow {
  display: flex;
  align-items: center;
  gap: 10px;
  height: 36px;
  font-weight: 800;
}

.iconTextButton {
  width: 32px;
  height: 32px;
  padding: 0;
  border: 0;
  background: transparent;
  font-size: 18px;
}

.librarySearchLabel {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.librarySearchLabel input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 8px 10px;
  background: var(--panel);
  color: var(--ink);
}

.libraryFacetList {
  display: grid;
  gap: 10px;
  overflow: auto;
  padding-right: 4px;
}

.facetGroup {
  display: grid;
  gap: 4px;
}

.facetGroupTitle {
  padding: 10px 8px 2px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.facetButton {
  width: 100%;
  min-height: 36px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--ink);
  text-align: left;
}

.facetButton span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.facetButton b {
  min-width: 24px;
  border-radius: 999px;
  padding: 2px 7px;
  background: var(--line-soft);
  color: var(--muted);
  text-align: center;
  font-size: 11px;
}

.facetButton:hover,
.facetButton.active {
  background: #e8edf2;
}

.facetButton.active {
  color: var(--accent-strong);
  font-weight: 800;
}

.facetButton.active b {
  background: var(--accent);
  color: #ffffff;
}

.facetEmpty {
  padding: 0 8px 6px;
  color: var(--muted);
  font-size: 12px;
}

.librarySidebarFooter {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.bookshelfPanel {
  min-width: 0;
  display: grid;
  gap: 18px;
  align-content: start;
}

.startHeader,
.uploadBox,
.sessionBrowser,
.translationHeader,
.emptyBookshelf {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
}

.startHeader,
.translationHeader {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
}

.bookshelfHeader {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-end;
  padding: 4px 0 2px;
}

.bookshelfMeta {
  color: var(--muted);
  font-size: 13px;
}

.startHeader h2,
.bookshelfHeader h2,
.translationHeader h2 {
  margin: 0 0 4px;
  font-size: 21px;
}

.startHeader p,
.bookshelfHeader p,
.translationHeader p {
  margin: 0;
  color: var(--muted);
  max-width: 680px;
}

.bookshelfActions,
.translationHeaderActions,
.translationActions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.bookshelfGrid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 30px 32px;
  align-items: start;
}

.bookshelfItem {
  display: grid;
  gap: 10px;
  border: 0;
  padding: 0;
  background: transparent;
  cursor: pointer;
  min-width: 0;
}

.bookshelfItem:hover,
.bookshelfItem:focus-visible {
  outline: 0;
}

.bookshelfItem.active {
  color: var(--accent-strong);
}

.bookCover {
  position: relative;
  aspect-ratio: 2 / 3;
  overflow: hidden;
  border-radius: 6px;
  background: #dfe6ee;
  box-shadow: 0 10px 22px rgba(18, 28, 38, 0.18);
}

.bookCover img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.bookSpine {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  background: linear-gradient(180deg, #45615b, #213d38);
  color: #ffffff;
  font-size: 34px;
  font-weight: 700;
}

.bookOverlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 8px;
  padding: 12px;
  background: rgba(18, 24, 31, 0.74);
  color: #ffffff;
  opacity: 0;
  transition: opacity 140ms ease;
}

.bookCover:hover .bookOverlay,
.bookshelfItem:focus-within .bookOverlay,
.bookshelfItem:focus-visible .bookOverlay {
  opacity: 1;
}

.bookOverlay h3,
.bookCaption h3 {
  margin: 0;
  font-size: 14px;
  line-height: 1.45;
}

.bookOverlay h3 {
  display: -webkit-box;
  overflow: hidden;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

.bookOverlay > p {
  display: -webkit-box;
  overflow: hidden;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.bookOverlay p,
.bookCaption p {
  margin: 0;
  font-size: 13px;
}

.bookFacts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 12px;
}

.overlayFacts {
  color: rgba(255, 255, 255, 0.82);
}

.bookActions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.bookActions button {
  min-width: 0;
  border-color: rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  padding: 7px 8px;
}

.bookActions [data-open-translation] {
  border-color: #ffffff;
  background: #ffffff;
  color: #18202a;
}

.bookCaption {
  display: grid;
  gap: 2px;
  text-align: left;
}

.bookCaption h3 {
  display: -webkit-box;
  overflow: hidden;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.bookCaption p {
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.translationPanel {
  max-width: 1180px;
}

.translationGrid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 16px;
  align-items: start;
}

.translationSettings,
.translationCard,
.translationProgressCard {
  display: grid;
  gap: 12px;
}

.translationCard,
.translationProgressCard {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
}

.translationOptions {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.translationOptions.apiOptions {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.translationCard label {
  display: grid;
  gap: 5px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.translationCard input,
.translationCard select,
.translationCard textarea {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 7px 9px;
  background: var(--panel);
  color: var(--ink);
  font-weight: 400;
}

.translationCard textarea {
  resize: vertical;
  font-size: 13px;
  line-height: 1.55;
}

.translationSample {
  display: grid;
  gap: 8px;
}

.translationSampleItem,
.translationEmpty,
.translationOutput {
  border: 1px solid var(--line-soft);
  border-radius: 6px;
  padding: 10px;
  background: var(--panel-soft);
}

.translationStats {
  display: grid;
  gap: 6px;
}

.statChipRow {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.statChip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  padding: 4px 9px;
  background: var(--panel-soft);
  color: var(--muted);
  font-size: 12px;
}

.statChip b {
  color: var(--ink);
}

.translationStats p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}

.translationSampleItem strong {
  display: block;
  margin-bottom: 4px;
  font-size: 12px;
  color: var(--muted);
}

.translationSampleItem p,
.translationOutput p {
  margin: 0;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.translationProgressCard {
  position: sticky;
  top: 18px;
}

.translationProgress {
  height: 12px;
  overflow: hidden;
  border-radius: 999px;
  background: var(--line-soft);
}

.translationProgressBar {
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: var(--accent);
  transition: width 180ms ease;
}

.translationProgressText {
  white-space: pre-wrap;
  color: var(--muted);
  font-size: 13px;
}

.translationLogs {
  display: grid;
  gap: 8px;
  max-height: 420px;
  overflow: auto;
}

.translationLog {
  border-left: 3px solid var(--line);
  padding: 6px 8px;
  background: var(--panel-soft);
}

.translationLog.warning {
  border-left-color: var(--warn);
}

.translationLog.error {
  border-left-color: var(--bad);
}

.translationLog span {
  display: block;
  color: var(--muted);
  font-size: 11px;
}

.translationLog p {
  margin: 2px 0 0;
  overflow-wrap: anywhere;
}

.seriesConfigDrawer {
  position: fixed;
  z-index: 60;
  top: 88px;
  right: 18px;
  bottom: 18px;
  width: min(520px, calc(100vw - 36px));
  display: grid;
  grid-template-rows: auto auto auto auto auto auto;
  gap: 12px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
  overflow: auto;
}

.seriesConfigDrawer[hidden] {
  display: none;
}

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

.seriesConfigHeader h2 {
  margin: 0 0 4px;
  font-size: 18px;
}

.seriesConfigHeader p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.seriesConfigDrawer label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.seriesConfigDrawer input,
.seriesConfigDrawer textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px 10px;
  background: var(--panel);
  color: var(--ink);
  font-weight: 400;
}

.seriesConfigDrawer textarea {
  resize: vertical;
  line-height: 1.55;
}

.seriesConfigActions {
  display: flex;
  justify-content: flex-end;
}

.emptyBookshelf {
  grid-column: 1 / -1;
  display: grid;
  gap: 10px;
  justify-items: start;
}

.emptyBookshelf h3 {
  margin: 0;
  font-size: 17px;
}

.emptyBookshelf p {
  margin: 0;
  color: var(--muted);
}

.uploadBox {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: stretch;
}

.fileDrop {
  min-width: 0;
  display: grid;
  gap: 4px;
  border: 1px dashed #aeb8c4;
  border-radius: 8px;
  padding: 14px;
  background: var(--panel-soft);
  cursor: pointer;
}

.fileDrop:hover {
  border-color: var(--accent);
}

.fileDrop input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.fileDrop:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(29, 111, 95, 0.12);
}

.fileDropTitle {
  font-weight: 700;
}

.fileDropName {
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.compactTitle {
  margin-bottom: 12px;
}

.compactTitle span {
  color: var(--muted);
  font-size: 12px;
}

.sessionList {
  display: grid;
  gap: 10px;
}

.sessionItem {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  padding: 12px;
  background: var(--panel-soft);
}

.sessionItem.active {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.sessionInfo {
  min-width: 0;
}

.sessionInfo h3 {
  margin: 0 0 2px;
  font-size: 15px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sessionInfo p {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 12px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sessionFacts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
}

.emptySession {
  color: var(--muted);
  border: 1px dashed var(--line);
  border-radius: 8px;
  padding: 18px;
  text-align: center;
  background: var(--panel-soft);
}

.layout {
  height: 100vh;
  display: block;
  min-width: 0;
  position: relative;
}

.sidebar {
  position: fixed;
  top: 8px;
  left: 0;
  bottom: 0;
  z-index: 24;
  width: min(380px, calc(100vw - 24px));
  border-right: 1px solid var(--line);
  background: var(--panel-soft);
  min-height: 0;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow);
}

.sideHeader {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}

.sideHeader button {
  min-height: 28px;
  padding: 2px 8px;
  color: var(--muted);
}

.tocPanel,
.searchPanel {
  min-height: 0;
  display: flex;
  flex: 1;
  flex-direction: column;
}

.searchbox {
  padding: 12px;
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 8px;
}

.searchbox input {
  width: 100%;
  min-height: 36px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 6px 10px;
  background: var(--panel);
}

.searchScope {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
  background: var(--panel);
}

.searchScope button {
  min-height: 30px;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--muted);
  padding: 3px 8px;
  font-size: 13px;
}

.searchScope button.active {
  background: var(--accent);
  color: #ffffff;
}

.stats {
  padding: 8px 12px;
  color: var(--muted);
  font-size: 12px;
  border-bottom: 1px solid var(--line);
}

.tocToolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 12px 4px;
  color: var(--ink);
  font-size: 13px;
}

.tocToolbar div {
  display: flex;
  gap: 4px;
}

.tocToolbar button {
  min-height: 26px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  color: var(--muted);
  padding: 2px 8px;
  font-size: 12px;
}

.toc {
  min-height: 0;
  flex: 1;
  overflow: auto;
  padding: 4px 0 8px;
}

.tocChapter {
  margin: 0 8px 6px;
}

.tocChapterRow {
  width: 100%;
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  align-items: center;
  border-radius: 6px;
}

.tocToggle {
  width: 24px;
  height: 34px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  padding: 0;
  line-height: 1;
}

.tocToggle:disabled {
  opacity: 1;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
}

.tocChapterButton,
.tocPartButton,
.tocImageButton {
  width: 100%;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  align-items: center;
  text-align: left;
  border: 0;
  border-radius: 6px;
  background: transparent;
  padding: 7px 8px;
}

.tocChapterButton {
  font-weight: 700;
}

.tocChapter.imageChapter .tocChapterButton {
  font-weight: 600;
}

.tocPartButton,
.tocImageButton {
  margin-left: 24px;
  width: calc(100% - 24px);
  color: var(--muted);
}

.tocImageButton {
  padding-left: 14px;
  font-size: 13px;
}

.tocImageButton .tocTitle::before {
  content: "插图 · ";
  color: var(--accent);
  font-weight: 600;
}

.tocChapterRow:hover,
.tocChapterRow.active,
.tocChapterButton:hover,
.tocToggle:hover,
.tocPartButton:hover,
.tocImageButton:hover {
  background: var(--hover-bg);
}

.tocChapterRow.active,
.tocChapterButton.active,
.tocPartButton.active,
.tocImageButton.active {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.tocTitle {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tocCount {
  color: var(--muted);
  font-weight: 400;
  font-size: 12px;
  white-space: nowrap;
}

.rowList {
  overflow: auto;
  min-height: 0;
  flex: 1;
}

.rowItem {
  width: 100%;
  display: block;
  text-align: left;
  border: 0;
  border-bottom: 1px solid var(--line-soft);
  border-radius: 0;
  background: transparent;
  padding: 10px 12px;
}

.rowItem:hover {
  background: var(--hover-bg);
}

.rowItem.active {
  background: var(--accent-soft);
  border-left: 4px solid var(--accent);
  padding-left: 8px;
}

.rowItem.touched .rowBadge {
  background: var(--success-soft);
  color: var(--accent-strong);
}

.rowItem.marked .rowBadge {
  background: var(--marked-soft);
  color: var(--warn);
}

.emptyRowItem {
  color: var(--muted);
  cursor: default;
}

.emptyRowItem:hover {
  background: transparent;
}

.imageRowItem {
  cursor: default;
}

.imageRowItem:hover {
  background: var(--accent-soft);
}

.rowMeta {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 4px;
}

.rowBadge {
  display: inline-flex;
  align-items: center;
  min-height: 20px;
  padding: 0 6px;
  border-radius: 999px;
  background: var(--badge-bg);
}

.rowPreview {
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.readerPane,
.editorPane {
  min-width: 0;
  min-height: 0;
  overflow: auto;
}

.readerPane {
  height: 100vh;
  padding: 0;
  background: var(--reader-bg);
  color: var(--reader-ink);
}

.readerPane,
.editorPane {
  transition: margin-left 160ms ease;
}

.readerHeader {
  position: fixed;
  top: var(--topbar-live-height);
  left: 0;
  right: 0;
  z-index: 22;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  padding: 16px 28px;
  background: var(--reader-paper);
  background: color-mix(in srgb, var(--reader-paper) 94%, transparent);
  border-bottom: 1px solid var(--line);
  transform: translateY(calc(-100% - var(--topbar-live-height) + 8px));
  opacity: 0;
  pointer-events: none;
  transition: transform 160ms ease, opacity 160ms ease, box-shadow 160ms ease;
}

body.startOpen .readerHeader,
body.chromeVisible .readerHeader,
.readerHeader:hover,
.readerHeader:focus-within {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
  box-shadow: 0 10px 26px rgba(25, 34, 45, 0.12);
}

.chapterKicker {
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 2px;
}

#readerTitle {
  margin: 0;
  font-size: 20px;
  line-height: 1.35;
}

.readerTools {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
  flex-wrap: wrap;
  justify-content: flex-end;
  align-items: center;
}

.appearanceControls {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  padding-right: 8px;
  border-right: 1px solid var(--line);
}

.themeSwitch {
  display: inline-grid;
  grid-template-columns: repeat(3, minmax(42px, auto));
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
  background: var(--panel);
}

.themeSwitch button {
  min-height: 30px;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--muted);
  padding: 3px 9px;
  font-size: 12px;
}

.themeSwitch button.active {
  background: var(--accent);
  color: #ffffff;
}

.readerSlider {
  display: inline-grid;
  grid-template-columns: auto 78px 34px;
  gap: 6px;
  align-items: center;
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}

.readerSlider input {
  width: 78px;
  accent-color: var(--accent);
}

.readerSlider output {
  min-width: 30px;
  color: var(--ink);
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.readingFlow {
  max-width: 900px;
  margin: 0 auto;
  padding: 36px 42px 100px;
  background: var(--reader-paper);
  min-height: 100vh;
  border-left: 1px solid var(--reader-border);
  border-right: 1px solid var(--reader-border);
}

.readBlock {
  position: relative;
  padding: 18px 0 22px 12px;
  border-left: 4px solid transparent;
  cursor: pointer;
}

.partDivider {
  margin: 26px 0 14px;
  padding: 12px 0 8px;
  border-bottom: 2px solid var(--line);
  color: var(--accent-strong);
  font-size: 17px;
}

.readBlock:hover {
  background: linear-gradient(90deg, rgba(29, 111, 95, 0.055), transparent 42%);
}

.readBlock.active {
  border-left-color: var(--accent);
}

.readBlock.marked {
  border-left-color: var(--warn);
}

.readSource {
  color: var(--reader-source);
  font-size: calc(var(--reader-font-size) - 4px);
  line-height: calc(var(--reader-line-height) - 0.2);
  margin-bottom: 8px;
}

.readCn {
  color: var(--reader-ink);
  font-size: var(--reader-font-size);
  line-height: var(--reader-line-height);
  letter-spacing: 0;
}

.readCn mark,
.readCn .review-mark,
.cnEditor mark,
.cnEditor .review-mark {
  background: var(--mark);
  color: inherit;
}

.imageChapterFigure {
  margin: 0 auto 28px;
  padding: 0 0 22px;
  border-bottom: 1px solid var(--line-soft);
  text-align: center;
}

.inlineImageFigure {
  margin: 18px auto 30px;
  padding-top: 8px;
}

.imageChapterFigure img {
  display: block;
  max-width: 100%;
  max-height: calc(100vh - 190px);
  width: auto;
  height: auto;
  margin: 0 auto;
  object-fit: contain;
}

.imageChapterFigure figcaption {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 10px;
  color: var(--muted);
  font-size: 12px;
}

.editorPane {
  height: 100vh;
  padding: 18px;
}

.emptyState {
  height: 100%;
  min-height: 240px;
  display: grid;
  place-items: center;
  color: var(--muted);
}

.editorCard {
  max-width: 1040px;
  margin: 0 auto;
}

.rowHeader {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-start;
  margin-bottom: 14px;
}

.rowId {
  font-weight: 700;
  font-size: 18px;
}

.rowPath {
  color: var(--muted);
  font-size: 12px;
  word-break: break-all;
}

.markToggle {
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--warn);
  font-weight: 600;
}

.pair,
.reviewFields,
.notes,
.actions {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  margin-bottom: 12px;
}

.pair h2,
.sectionTitle h2 {
  margin: 0 0 8px;
  font-size: 15px;
}

.sourceText,
.quickSource {
  color: var(--source);
  white-space: pre-wrap;
  background: var(--panel-soft);
  border: 1px solid var(--line-soft);
  border-radius: 6px;
  padding: 12px;
}

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

.inlineTools {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.cnEditor {
  min-height: 160px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px;
  outline: none;
  white-space: pre-wrap;
}

.cnEditor:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(29, 111, 95, 0.12);
}

.reviewFields {
  display: grid;
  grid-template-columns: 1fr 1fr 2fr;
  gap: 12px;
}

label {
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-weight: 600;
}

label input,
label select,
label textarea {
  font-weight: 400;
}

input,
select,
textarea {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  padding: 7px 9px;
  color: var(--ink);
}

textarea {
  resize: vertical;
}

.notes {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.actions {
  display: flex;
  justify-content: center;
  gap: 10px;
}

.quickEditor {
  position: fixed;
  top: 8px;
  right: 0;
  bottom: 0;
  width: min(520px, calc(100vw - 36px));
  z-index: 26;
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow: auto;
  background: var(--panel);
  border: 1px solid var(--line);
  border-top: 0;
  border-right: 0;
  border-bottom: 0;
  border-radius: 0;
  box-shadow: var(--shadow);
  padding: 14px;
}

.quickHeader {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--line-soft);
  padding-bottom: 10px;
}

.quickSourceWrap {
  border: 1px solid var(--line-soft);
  border-radius: 6px;
  background: var(--panel-soft);
}

.toolSection {
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  background: var(--panel);
  padding: 10px;
}

.toolSection > summary,
.quickSourceWrap summary {
  cursor: pointer;
  padding: 2px 2px 8px;
  color: var(--source);
  font-weight: 700;
}

.toolSection[open] > summary {
  border-bottom: 1px solid var(--line-soft);
  margin-bottom: 10px;
}

.quickSource {
  max-height: none;
  overflow: visible;
  font-size: 13px;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.quickField {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.quickCnEditor {
  min-height: 150px;
  max-height: 260px;
  overflow: auto;
}

.quickControls {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
  align-items: center;
}

.quickActions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 2px;
}

.gptBox {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: var(--panel-soft);
}

.gptStatus {
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 8px;
}

.gptConfig {
  display: grid;
  gap: 10px;
  margin-bottom: 10px;
}

.gptConfig[hidden] {
  display: none !important;
}

details.gptConfig {
  margin-bottom: 0;
}

.gptConfigGroup {
  display: grid;
  gap: 8px;
  padding-top: 10px;
  border-top: 1px solid var(--line-soft);
}

.gptConfigGroup:first-child {
  padding-top: 0;
  border-top: 0;
}

.gptConfigTitle {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.gptConfigActions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}

.gptConfig textarea {
  min-height: 112px;
  font-size: 13px;
  line-height: 1.55;
}

.glossaryMeta {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.glossaryTools {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto auto;
  gap: 8px;
  align-items: center;
}

.glossaryList {
  display: grid;
  gap: 6px;
  max-height: 280px;
  overflow: auto;
  padding-right: 2px;
}

.glossaryRow {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr) auto;
  gap: 6px;
  align-items: center;
}

.glossaryRow input {
  min-width: 0;
  font-size: 12px;
}

.glossaryDelete {
  padding-inline: 8px;
}

.glossaryEmpty {
  padding: 10px;
  border: 1px dashed #cbd5df;
  border-radius: 6px;
  color: var(--muted);
  font-size: 12px;
  background: var(--panel);
}

.gptActions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 8px;
}

.deliveryActions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.gptCandidate {
  margin-top: 10px;
  padding: 10px;
  border: 1px dashed var(--accent);
  border-radius: 6px;
  background: var(--panel);
  max-height: 180px;
  overflow: auto;
  white-space: pre-wrap;
}

.gptCandidateMeta {
  margin-bottom: 8px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line-soft);
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

.toast {
  position: fixed;
  right: 16px;
  bottom: 16px;
  max-width: min(560px, calc(100vw - 32px));
  padding: 12px 14px;
  background: var(--toast-bg);
  color: #ffffff;
  border-radius: 8px;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.22);
  z-index: 30;
  white-space: pre-wrap;
}

[hidden] {
  display: none !important;
}

@media (min-width: 1041px) {
  body.sidebarOpen .readerPane,
  body.sidebarOpen .editorPane {
    margin-left: 380px;
  }

  body.sidebarOpen .sidebar {
    box-shadow: none;
  }

  body.sidebarOpen .readerHeader {
    left: 380px;
  }

  body.quickOpen .readerHeader {
    right: min(520px, calc(100vw - 36px));
  }
}

@media (min-width: 1320px) {
  body.quickOpen .readingFlow {
    margin-left: 56px;
    margin-right: 560px;
    max-width: 840px;
  }
}

@media (max-width: 1040px) {
  .topbar {
    height: auto;
    grid-template-columns: 1fr;
    align-items: stretch;
  }

  body:not(.startOpen) .topbar {
    transform: translateY(calc(-100% + 8px));
  }

  #sessionMeta {
    white-space: normal;
  }

  .toolbar {
    justify-content: flex-start;
  }

  .layout {
    height: auto;
    min-height: 100vh;
  }

  .sidebar {
    top: 0;
    width: min(360px, calc(100vw - 18px));
    max-height: none;
    border-right: 0;
  }

  .readerPane,
  .editorPane {
    height: auto;
    min-height: 70vh;
  }

  .readingFlow {
    border: 0;
    padding: 18px 18px 80px;
  }

  .readerHeader {
    top: var(--topbar-live-height);
    padding: 12px 16px;
  }

  .appearanceControls {
    width: 100%;
    padding-right: 0;
    padding-bottom: 8px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .reviewFields,
  .quickControls {
    grid-template-columns: 1fr;
  }

  .quickEditor {
    top: auto;
    left: 10px;
    right: 10px;
    bottom: 10px;
    width: auto;
    max-height: 72vh;
    border: 1px solid var(--line);
    border-radius: 8px;
  }

  .startScreen,
  .bookshelfScreen,
  .translationScreen {
    padding: 14px;
  }

  .startHeader,
  .translationHeader,
  .uploadBox,
  .sessionItem,
  .deliveryActions {
    grid-template-columns: 1fr;
  }

  .libraryShell {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .librarySidebar {
    position: static;
    grid-template-rows: auto;
  }

  .bookshelfHeader {
    display: grid;
    gap: 12px;
  }

  .bookshelfActions,
  .translationHeaderActions,
  .bookshelfActions button,
  .translationHeaderActions button {
    width: 100%;
  }

  .bookshelfGrid {
    grid-template-columns: repeat(auto-fill, minmax(132px, 1fr));
    gap: 22px 18px;
  }

  .bookOverlay {
    position: absolute;
    opacity: 1;
    min-height: 0;
    background: rgba(18, 24, 31, 0.68);
  }

  .translationGrid {
    grid-template-columns: 1fr;
  }

  .translationProgressCard {
    position: static;
  }

  .translationOptions,
  .translationOptions.apiOptions {
    grid-template-columns: 1fr;
  }

  .seriesConfigDrawer {
    top: 12px;
    right: 12px;
    bottom: 12px;
    width: calc(100vw - 24px);
  }
}

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