.aibook-keyword-library {
  color-scheme: light;
  --page-bg: #f4f6f8;
  --surface: #ffffff;
  --surface-soft: #f7f9fb;
  --surface-strong: #eef3f6;
  --text: #182230;
  --text-soft: #435161;
  --muted: #667382;
  --border: #dce3e9;
  --border-strong: #c8d2dc;
  --brand: #087b83;
  --brand-strong: #075e8f;
  --focus: #0b84a5;
  --shadow: 0 10px 28px rgba(25, 39, 52, 0.08);
  --header-height: 64px;
}

.aibook-keyword-library,
.aibook-keyword-library * {
  box-sizing: border-box;
}

.aibook-keyword-library {
  scroll-behavior: smooth;
  scroll-padding-top: 154px;
}

.aibook-keyword-library {
  margin: 0;
  background: var(--page-bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.72;
  letter-spacing: 0;
}

.aibook-keyword-library button,
.aibook-keyword-library input,
.aibook-keyword-library select {
  font: inherit;
  letter-spacing: 0;
}

.aibook-keyword-library button,
.aibook-keyword-library select,
.aibook-keyword-library summary {
  cursor: pointer;
}

.aibook-keyword-library a {
  color: var(--brand-strong);
  text-decoration: none;
}

.aibook-keyword-library a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.aibook-keyword-library :focus-visible {
  outline: 3px solid color-mix(in srgb, var(--focus) 35%, transparent);
  outline-offset: 2px;
}

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

.aibook-keyword-library .site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-height);
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.97);
}

.aibook-keyword-library .site-header__inner {
  display: flex;
  width: min(1240px, calc(100% - 40px));
  height: 100%;
  margin: 0 auto;
  align-items: center;
  gap: 32px;
}

.aibook-keyword-library .brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-size: 18px;
  font-weight: 760;
  white-space: nowrap;
}

.aibook-keyword-library .brand:hover {
  text-decoration: none;
}

.aibook-keyword-library .brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 2px solid var(--brand);
  border-radius: 50%;
  color: var(--brand);
  font-size: 11px;
  font-weight: 800;
}

.aibook-keyword-library .site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 14px;
}

.aibook-keyword-library .site-nav a {
  color: #394757;
}

.aibook-keyword-library .site-nav a[aria-current="page"] {
  color: var(--brand-strong);
  font-weight: 720;
}

.aibook-keyword-library .preview-status {
  border-bottom: 1px solid #d6e3e5;
  background: #edf7f6;
  color: #365c5e;
  font-size: 13px;
}

.aibook-keyword-library .preview-status__inner {
  width: min(1240px, calc(100% - 40px));
  margin: 0 auto;
  padding: 9px 0;
}

.aibook-keyword-library .page-shell {
  width: min(1240px, calc(100% - 40px));
  margin: 0 auto;
  border-top: 1px solid var(--border);
  border-right: 1px solid var(--border);
  border-left: 1px solid var(--border);
  border-radius: 6px 6px 0 0;
  background: var(--surface);
}

.aibook-keyword-library .page-hero {
  padding: 52px 56px 34px;
  border-bottom: 1px solid var(--border);
}

.aibook-keyword-library .page-eyebrow {
  display: block;
  margin-bottom: 8px;
  color: var(--brand);
  font-size: 13px;
  font-weight: 760;
}

.aibook-keyword-library .page-hero h1 {
  margin: 0;
  font-size: 38px;
  font-weight: 780;
  line-height: 1.24;
}

.aibook-keyword-library .page-lead {
  max-width: 880px;
  margin: 15px 0 0;
  color: var(--text-soft);
  font-size: 17px;
}

.aibook-keyword-library .page-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 9px 22px;
  margin: 22px 0 0;
  padding: 0;
  color: var(--muted);
  font-size: 13px;
  list-style: none;
}

.aibook-keyword-library .page-meta li {
  position: relative;
}

.aibook-keyword-library .page-meta li + li::before {
  position: absolute;
  left: -12px;
  color: var(--border-strong);
  content: "·";
}

.aibook-keyword-library .search-panel {
  position: sticky;
  top: var(--header-height);
  z-index: 40;
  padding: 18px 56px 16px;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.97);
  box-shadow: 0 6px 14px rgba(25, 39, 52, 0.04);
}

.aibook-keyword-library .search-row {
  display: grid;
  grid-template-columns: minmax(360px, 1fr) minmax(210px, 270px) auto;
  gap: 12px;
  align-items: center;
}

.aibook-keyword-library .search-combobox {
  position: relative;
}

.aibook-keyword-library .search-field {
  position: relative;
}

.aibook-keyword-library .search-field input {
  width: 100%;
  height: 46px;
  padding: 0 48px 0 15px;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
}

.aibook-keyword-library .search-field input:hover {
  border-color: #aebcc8;
}

.aibook-keyword-library .search-field input:focus {
  border-color: var(--focus);
  outline: 3px solid color-mix(in srgb, var(--focus) 18%, transparent);
}

.aibook-keyword-library .search-field input::placeholder {
  color: #7b8794;
}

.aibook-keyword-library .search-field input::-webkit-search-cancel-button {
  appearance: none;
}

.aibook-keyword-library .search-field input::-ms-clear {
  display: none;
}

.aibook-keyword-library .clear-search {
  position: absolute;
  top: 7px;
  right: 7px;
  display: none;
  width: 32px;
  height: 32px;
  padding: 0;
  border: 0;
  border-radius: 5px;
  background: transparent;
  color: var(--muted);
  font-size: 22px;
  line-height: 1;
}

.aibook-keyword-library .clear-search:hover {
  background: var(--surface-strong);
  color: var(--text);
}

.aibook-keyword-library .clear-search.is-visible {
  display: grid;
  place-items: center;
}

.aibook-keyword-library .category-filter {
  width: 100%;
  height: 46px;
  padding: 0 36px 0 12px;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
}

.aibook-keyword-library .result-count {
  min-width: 96px;
  color: var(--muted);
  font-size: 13px;
  text-align: right;
  white-space: nowrap;
}

.aibook-keyword-library .search-suggestions {
  position: absolute;
  top: calc(100% + 7px);
  right: 0;
  left: 0;
  z-index: 70;
  display: none;
  max-height: 420px;
  margin: 0;
  padding: 5px;
  overflow-y: auto;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  background: var(--surface);
  box-shadow: var(--shadow);
  list-style: none;
}

.aibook-keyword-library .search-suggestions.is-open {
  display: block;
}

.aibook-keyword-library .search-option {
  display: grid;
  width: 100%;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 6px 14px;
  padding: 10px 11px;
  border: 0;
  border-radius: 4px;
  background: transparent;
  color: var(--text);
  text-align: left;
}

.aibook-keyword-library .search-option:hover,
.aibook-keyword-library .search-option.is-active {
  background: #edf5f7;
  text-decoration: none;
}

.aibook-keyword-library .search-option__name {
  min-width: 0;
  overflow: hidden;
  font-weight: 720;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.aibook-keyword-library .search-option__alias {
  min-width: 0;
  overflow: hidden;
  color: var(--muted);
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.aibook-keyword-library .search-option__category {
  grid-row: 1 / span 2;
  grid-column: 2;
  align-self: center;
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}

.aibook-keyword-library .no-results {
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 12px;
  padding: 11px 12px;
  border-left: 3px solid #b7791f;
  background: #fff8e7;
  color: #624d24;
  font-size: 13px;
}

.aibook-keyword-library .no-results.is-visible {
  display: flex;
}

.aibook-keyword-library .no-results button {
  padding: 5px 9px;
  border: 1px solid #d4b36b;
  border-radius: 5px;
  background: transparent;
  color: #725515;
  font-weight: 680;
}

.aibook-keyword-library .category-overview {
  padding: 36px 56px 42px;
  border-bottom: 1px solid var(--border);
}

.aibook-keyword-library .section-intro h2 {
  margin: 0;
  font-size: 24px;
  line-height: 1.35;
}

.aibook-keyword-library .section-intro p {
  max-width: 780px;
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.aibook-keyword-library .category-index {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 24px;
  border-top: 1px solid var(--border);
}

.aibook-keyword-library .category-index__item {
  position: relative;
  min-width: 0;
  padding: 17px 18px 18px 14px;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  color: var(--text);
}

.aibook-keyword-library .category-index__item:nth-child(3n) {
  border-right: 0;
}

.aibook-keyword-library .category-index__item::before {
  position: absolute;
  top: 20px;
  bottom: 20px;
  left: 0;
  width: 3px;
  border-radius: 2px;
  background: var(--cat-color);
  content: "";
}

.aibook-keyword-library .category-index__item:hover {
  background: var(--surface-soft);
  text-decoration: none;
}

.aibook-keyword-library .category-index__title {
  display: flex;
  min-width: 0;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  font-weight: 720;
}

.aibook-keyword-library .category-index__code,
.aibook-keyword-library .category-index__count {
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
}

.aibook-keyword-library .category-index__description {
  display: block;
  margin-top: 5px;
  color: var(--text-soft);
  font-size: 13px;
  line-height: 1.55;
}

.aibook-keyword-library .category-index__examples {
  display: block;
  margin-top: 7px;
  overflow: hidden;
  color: var(--muted);
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.aibook-keyword-library .keyword-section {
  --cat-color: var(--brand);
  position: relative;
  padding: 44px 56px 16px;
  border-bottom: 1px solid var(--border);
  scroll-margin-top: 150px;
}

.aibook-keyword-library .keyword-section[hidden] {
  display: none;
}

.aibook-keyword-library .keyword-section::before {
  position: absolute;
  top: 48px;
  bottom: 34px;
  left: 0;
  width: 4px;
  background: var(--cat-color);
  content: "";
}

.aibook-keyword-library .keyword-section__header {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 13px 18px;
  align-items: baseline;
  padding-bottom: 20px;
}

.aibook-keyword-library .keyword-section__code {
  color: var(--cat-color);
  font-size: 13px;
  font-weight: 800;
}

.aibook-keyword-library .keyword-section h2 {
  margin: 0;
  font-size: 27px;
  line-height: 1.3;
}

.aibook-keyword-library .keyword-section__count {
  color: var(--muted);
  font-size: 13px;
  white-space: nowrap;
}

.aibook-keyword-library .keyword-section__description {
  grid-column: 2 / -1;
  margin: -5px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.aibook-keyword-library .term-list {
  border-top: 1px solid var(--border);
}

.aibook-keyword-library .keyword-entry {
  --cat-color: var(--brand);
  border-bottom: 1px solid var(--border);
  scroll-margin-top: 154px;
}

.aibook-keyword-library .keyword-entry[hidden] {
  display: none;
}

.aibook-keyword-library .keyword-entry > summary {
  position: relative;
  display: grid;
  min-width: 0;
  grid-template-columns: 24px minmax(180px, 0.58fr) minmax(260px, 1fr) auto;
  gap: 8px 18px;
  align-items: center;
  padding: 17px 10px 17px 3px;
  list-style: none;
}

.aibook-keyword-library .keyword-entry > summary::-webkit-details-marker {
  display: none;
}

.aibook-keyword-library .keyword-entry > summary::before {
  display: grid;
  width: 20px;
  height: 20px;
  place-items: center;
  color: var(--cat-color);
  content: "›";
  font-size: 23px;
  line-height: 1;
  transition: transform 160ms ease;
}

.aibook-keyword-library .keyword-entry[open] > summary::before {
  transform: rotate(90deg);
}

.aibook-keyword-library .keyword-entry > summary:hover {
  background: var(--surface-soft);
}

.aibook-keyword-library .keyword-entry[open] > summary {
  background: #fbfcfd;
}

.aibook-keyword-library .keyword-entry.is-located {
  box-shadow: inset 4px 0 0 var(--cat-color);
  background: color-mix(in srgb, var(--cat-color) 5%, var(--surface));
}

.aibook-keyword-library .term-heading {
  min-width: 0;
}

.aibook-keyword-library .term-heading h3 {
  margin: 0;
  overflow-wrap: anywhere;
  font-size: 18px;
  font-weight: 750;
  line-height: 1.4;
}

.aibook-keyword-library .term-heading span {
  display: block;
  margin-top: 2px;
  overflow: hidden;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.aibook-keyword-library .term-summary {
  min-width: 0;
  margin: 0;
  color: var(--text-soft);
  font-size: 14px;
  line-height: 1.55;
}

.aibook-keyword-library .term-tags {
  display: flex;
  max-width: 210px;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 5px;
}

.aibook-keyword-library .term-tag {
  padding: 2px 6px;
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.5;
  white-space: nowrap;
}

.aibook-keyword-library .entry-body {
  margin: 0 10px 0 27px;
  padding: 5px 0 28px 18px;
  border-left: 2px solid color-mix(in srgb, var(--cat-color) 30%, var(--border));
}

.aibook-keyword-library .definition-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 0 34px;
}

.aibook-keyword-library .definition-block {
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
}

.aibook-keyword-library .definition-block h4,
.aibook-keyword-library .relation-block h4,
.aibook-keyword-library .reading-block h4 {
  margin: 0 0 7px;
  color: var(--cat-color);
  font-size: 13px;
  font-weight: 780;
}

.aibook-keyword-library .definition-block p {
  margin: 0;
  color: var(--text-soft);
  font-size: 14px;
}

.aibook-keyword-library .definition-boundary {
  grid-column: 1 / -1;
}

.aibook-keyword-library .preview-placeholder {
  margin: 16px 0 4px;
  padding: 10px 12px;
  border-left: 3px solid #85929f;
  background: var(--surface-soft);
  color: var(--muted);
  font-size: 13px;
}

.aibook-keyword-library .relation-block,
.aibook-keyword-library .reading-block {
  padding: 20px 0 0;
}

.aibook-keyword-library .relation-groups {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.aibook-keyword-library .relation-group strong {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 12px;
}

.aibook-keyword-library .relation-links {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.aibook-keyword-library .concept-link {
  padding: 3px 7px;
  border: 1px solid color-mix(in srgb, var(--cat-color) 35%, var(--border));
  border-radius: 4px;
  color: var(--cat-color);
  font-size: 12px;
  font-weight: 650;
}

.aibook-keyword-library .concept-link:hover {
  border-color: var(--cat-color);
  background: color-mix(in srgb, var(--cat-color) 6%, var(--surface));
  text-decoration: none;
}

.aibook-keyword-library .empty-relation {
  color: #8a96a2;
  font-size: 12px;
}

.aibook-keyword-library .reading-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.aibook-keyword-library .reading-list li {
  display: grid;
  grid-template-columns: minmax(220px, 0.72fr) minmax(0, 1fr);
  gap: 14px;
  padding: 9px 0;
  border-top: 1px dashed #dde4ea;
}

.aibook-keyword-library .reading-list li:first-child {
  border-top: 0;
}

.aibook-keyword-library .reading-list a {
  font-size: 14px;
  font-weight: 700;
}

.aibook-keyword-library .reading-list a::after {
  content: " ↗";
  font-size: 0.82em;
}

.aibook-keyword-library .reading-list span {
  color: var(--muted);
  font-size: 12px;
}

.aibook-keyword-library .entry-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  margin-top: 19px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 12px;
}

.aibook-keyword-library .legacy-anchor {
  display: block;
  position: relative;
  top: -150px;
  visibility: hidden;
}

.aibook-keyword-library .page-footer {
  padding: 38px 56px 48px;
}

.aibook-keyword-library .page-footer p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.aibook-keyword-library .page-footer a {
  font-weight: 680;
}

.aibook-keyword-library .back-to-top {
  display: inline-block;
  margin-top: 12px;
}

@media (max-width: 980px) {
  .aibook-keyword-library .site-header__inner,
.aibook-keyword-library .preview-status__inner,
.aibook-keyword-library .page-shell {
    width: min(100% - 24px, 1240px);
  }

  .aibook-keyword-library .site-nav {
    display: none;
  }

  .aibook-keyword-library .page-hero,
.aibook-keyword-library .search-panel,
.aibook-keyword-library .category-overview,
.aibook-keyword-library .keyword-section,
.aibook-keyword-library .page-footer {
    padding-right: 30px;
    padding-left: 30px;
  }

  .aibook-keyword-library .search-row {
    grid-template-columns: minmax(300px, 1fr) minmax(200px, 250px);
  }

  .aibook-keyword-library .result-count {
    grid-column: 1 / -1;
    text-align: left;
  }

  .aibook-keyword-library .category-index {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .aibook-keyword-library .category-index__item:nth-child(3n) {
    border-right: 1px solid var(--border);
  }

  .aibook-keyword-library .category-index__item:nth-child(2n) {
    border-right: 0;
  }

  .aibook-keyword-library .keyword-entry > summary {
    grid-template-columns: 24px minmax(180px, 0.72fr) minmax(0, 1fr);
  }

  .aibook-keyword-library .term-tags {
    grid-column: 2 / -1;
    justify-content: flex-start;
    max-width: none;
  }
}

@media (max-width: 680px) {
  .aibook-keyword-library {
    --header-height: 58px;
  }

  .aibook-keyword-library {
    scroll-padding-top: 174px;
  }

  .aibook-keyword-library .site-header__inner,
.aibook-keyword-library .preview-status__inner,
.aibook-keyword-library .page-shell {
    width: 100%;
  }

  .aibook-keyword-library .site-header__inner {
    padding: 0 18px;
  }

  .aibook-keyword-library .preview-status__inner {
    padding: 9px 18px;
  }

  .aibook-keyword-library .page-shell {
    border: 0;
  }

  .aibook-keyword-library .page-hero {
    padding: 36px 18px 25px;
  }

  .aibook-keyword-library .page-hero h1 {
    font-size: 31px;
  }

  .aibook-keyword-library .page-lead {
    font-size: 15px;
  }

  .aibook-keyword-library .page-meta {
    display: grid;
    gap: 3px;
  }

  .aibook-keyword-library .page-meta li + li::before {
    display: none;
  }

  .aibook-keyword-library .search-panel {
    padding: 13px 18px 12px;
  }

  .aibook-keyword-library .search-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .aibook-keyword-library .result-count {
    grid-column: auto;
  }

  .aibook-keyword-library .search-option {
    grid-template-columns: minmax(0, 1fr);
  }

  .aibook-keyword-library .search-option__category {
    grid-row: auto;
    grid-column: auto;
  }

  .aibook-keyword-library .no-results {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .aibook-keyword-library .category-overview {
    padding: 28px 18px 34px;
  }

  .aibook-keyword-library .category-index {
    grid-template-columns: 1fr;
  }

  .aibook-keyword-library .category-index__item,
.aibook-keyword-library .category-index__item:nth-child(3n),
.aibook-keyword-library .category-index__item:nth-child(2n) {
    border-right: 0;
  }

  .aibook-keyword-library .keyword-section {
    padding: 36px 18px 12px;
    scroll-margin-top: 174px;
  }

  .aibook-keyword-library .keyword-section::before {
    top: 39px;
    bottom: 28px;
    width: 3px;
  }

  .aibook-keyword-library .keyword-section__header {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 8px 10px;
  }

  .aibook-keyword-library .keyword-section h2 {
    font-size: 23px;
  }

  .aibook-keyword-library .keyword-section__count {
    grid-column: 2;
  }

  .aibook-keyword-library .keyword-section__description {
    grid-column: 1 / -1;
    margin-top: 2px;
  }

  .aibook-keyword-library .keyword-entry {
    scroll-margin-top: 174px;
  }

  .aibook-keyword-library .keyword-entry > summary {
    grid-template-columns: 20px minmax(0, 1fr);
    gap: 5px 10px;
    padding: 15px 2px;
  }

  .aibook-keyword-library .keyword-entry > summary::before {
    width: 18px;
    height: 18px;
  }

  .aibook-keyword-library .term-heading,
.aibook-keyword-library .term-summary,
.aibook-keyword-library .term-tags {
    grid-column: 2;
  }

  .aibook-keyword-library .term-heading h3 {
    font-size: 17px;
  }

  .aibook-keyword-library .term-heading span {
    overflow: visible;
    overflow-wrap: anywhere;
    text-overflow: clip;
    white-space: normal;
  }

  .aibook-keyword-library .term-summary {
    font-size: 13px;
  }

  .aibook-keyword-library .entry-body {
    margin-right: 0;
    margin-left: 9px;
    padding-left: 16px;
  }

  .aibook-keyword-library .definition-grid,
.aibook-keyword-library .relation-groups {
    grid-template-columns: 1fr;
  }

  .aibook-keyword-library .definition-boundary {
    grid-column: auto;
  }

  .aibook-keyword-library .reading-list li {
    grid-template-columns: 1fr;
    gap: 3px;
  }

  .aibook-keyword-library .page-footer {
    padding: 32px 18px 42px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .aibook-keyword-library {
    scroll-behavior: auto;
  }

  .aibook-keyword-library .keyword-entry > summary::before {
    transition: none;
  }
}

@media (prefers-color-scheme: dark) {
  html:not([data-mode]) .aibook-keyword-library {
    color-scheme: dark;
    --page-bg: #151a1f;
    --surface: #1b2229;
    --surface-soft: #222a32;
    --surface-strong: #2a333c;
    --text: #e7edf3;
    --text-soft: #c0cad4;
    --muted: #96a3af;
    --border: #35404a;
    --border-strong: #46535f;
    --brand: #50b9b5;
    --brand-strong: #79bfe5;
    --focus: #5dc3dd;
    --shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
  }

  html:not([data-mode]) .aibook-keyword-library .site-header,
html:not([data-mode]) .aibook-keyword-library .search-panel {
    background: rgba(27, 34, 41, 0.97);
  }

  html:not([data-mode]) .aibook-keyword-library .site-nav a {
    color: #c0cad4;
  }

  html:not([data-mode]) .aibook-keyword-library .preview-status {
    border-color: #315053;
    background: #203739;
    color: #afd0d0;
  }

  html:not([data-mode]) .aibook-keyword-library .search-option:hover,
html:not([data-mode]) .aibook-keyword-library .search-option.is-active {
    background: #26383c;
  }

  html:not([data-mode]) .aibook-keyword-library .no-results {
    background: #3a311d;
    color: #efd69f;
  }

  html:not([data-mode]) .aibook-keyword-library .keyword-entry[open] > summary {
    background: #202830;
  }

  html:not([data-mode]) .aibook-keyword-library .reading-list li {
    border-color: #35404a;
  }
}

  html[data-mode="dark"] .aibook-keyword-library {
    color-scheme: dark;
    --page-bg: #151a1f;
    --surface: #1b2229;
    --surface-soft: #222a32;
    --surface-strong: #2a333c;
    --text: #e7edf3;
    --text-soft: #c0cad4;
    --muted: #96a3af;
    --border: #35404a;
    --border-strong: #46535f;
    --brand: #50b9b5;
    --brand-strong: #79bfe5;
    --focus: #5dc3dd;
    --shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
  }

  html[data-mode="dark"] .aibook-keyword-library .site-header,
html[data-mode="dark"] .aibook-keyword-library .search-panel {
    background: rgba(27, 34, 41, 0.97);
  }

  html[data-mode="dark"] .aibook-keyword-library .site-nav a {
    color: #c0cad4;
  }

  html[data-mode="dark"] .aibook-keyword-library .preview-status {
    border-color: #315053;
    background: #203739;
    color: #afd0d0;
  }

  html[data-mode="dark"] .aibook-keyword-library .search-option:hover,
html[data-mode="dark"] .aibook-keyword-library .search-option.is-active {
    background: #26383c;
  }

  html[data-mode="dark"] .aibook-keyword-library .no-results {
    background: #3a311d;
    color: #efd69f;
  }

  html[data-mode="dark"] .aibook-keyword-library .keyword-entry[open] > summary {
    background: #202830;
  }

  html[data-mode="dark"] .aibook-keyword-library .reading-list li {
    border-color: #35404a;
  }



/* 生产页嵌入主题正文后，外层背景由主题统一负责。 */
.aibook-keyword-library {
  background: transparent;
}