:root {
  --discovery-soft: #eef2f8;
  --discovery-course: #4f667f;
  --discovery-open: #3e745d;
}

.knowledge-intents {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 24px 0 0;
}

.knowledge-intents a,
.knowledge-intents button {
  display: flex;
  min-height: 64px;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 0 20px;
  border: 1px solid var(--catalog-line);
  border-radius: 4px;
  background: var(--catalog-panel);
  color: var(--catalog-ink);
  cursor: pointer;
  font: inherit;
  text-align: left;
}

.knowledge-intents strong {
  display: block;
  font-size: 16px;
}

.knowledge-intents span {
  color: var(--catalog-muted);
  font-size: 13px;
}

.knowledge-intents a:hover,
.knowledge-intents button:hover {
  border-color: var(--catalog-ink);
}

[data-discovery-page="knowledge"] .catalog-entrances {
  margin-top: 56px;
  margin-bottom: 56px;
}

[data-discovery-page="knowledge"] .catalog-browser {
  scroll-margin-top: 24px;
}

.has-active-catalog .knowledge-intents,
.has-active-catalog .catalog-entrances,
.has-active-catalog .knowledge-discovery {
  display: none;
}

.has-active-catalog [data-discovery-page="knowledge"] .catalog-browser {
  margin-top: 24px;
}

.resource-card__access {
  color: var(--discovery-course);
  font-weight: 700;
}

.resource-card--course {
  border-top: 3px solid var(--discovery-course);
}

.resource-card--video {
  border-top: 3px solid var(--catalog-accent);
}

.resource-card__related {
  display: grid;
  gap: 6px;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--catalog-line);
}

.resource-card__related > span {
  color: var(--catalog-muted);
  font-size: 12px;
}

.resource-card__related a {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 8px;
  align-items: baseline;
  font-size: 13px;
}

.resource-card__related a small {
  color: var(--catalog-accent);
}

.resource-card__related a strong {
  overflow: hidden;
  font-weight: 500;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.resource-card__related a:hover strong {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.knowledge-discovery {
  margin-top: 88px;
}

.knowledge-discovery__header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--catalog-ink);
}

.knowledge-discovery__header p,
.discovery-detail-heading p,
.discovery-next > p {
  margin: 0 0 5px;
  color: var(--catalog-muted);
  font-size: 13px;
}

.knowledge-discovery__header h2,
.discovery-detail-heading h2 {
  margin: 0;
  font-size: 30px;
  font-weight: 500;
  line-height: 1.25;
}

.knowledge-discovery__header > p {
  max-width: 520px;
  margin: 0;
  text-align: right;
}

.learning-stage-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.learning-stage {
  min-width: 0;
  padding: 28px 22px 24px;
  border-right: 1px solid var(--catalog-line);
  border-bottom: 1px solid var(--catalog-line);
}

.learning-stage:first-child {
  border-left: 1px solid var(--catalog-line);
}

.learning-stage__step {
  margin: 0;
  color: var(--catalog-accent);
  font-size: 13px;
  font-weight: 700;
}

.learning-stage h3 {
  margin: 20px 0 8px;
  font-size: 20px;
  font-weight: 600;
}

.learning-stage__description {
  min-height: 66px;
  margin: 0;
  color: var(--catalog-muted);
  font-size: 14px;
}

.learning-stage__resources {
  display: grid;
  gap: 0;
  margin-top: 24px;
  border-top: 1px solid var(--catalog-line);
}

.learning-stage__resources a {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 8px;
  align-items: baseline;
  padding: 9px 0;
  border-bottom: 1px solid var(--catalog-line);
  font-size: 13px;
}

.learning-stage__resources small {
  color: var(--catalog-muted);
}

.learning-stage__resources strong {
  overflow: hidden;
  font-weight: 600;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.learning-stage__resources a:hover strong {
  color: var(--catalog-accent);
}

.learning-stage__next {
  display: inline-block;
  margin-top: 24px;
  border-bottom: 1px solid currentColor;
  font-size: 13px;
  font-weight: 700;
}

.topic-guide-section,
.series-guide-section {
  margin-top: 88px;
}

.topic-guide-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.topic-guide {
  min-height: 235px;
  padding: 26px 24px;
  border-right: 1px solid var(--catalog-line);
  border-bottom: 1px solid var(--catalog-line);
}

.topic-guide:nth-child(3n + 1) {
  border-left: 1px solid var(--catalog-line);
}

.topic-guide h3 {
  margin: 0;
  font-size: 20px;
}

.topic-guide p {
  min-height: 70px;
  margin: 12px 0 24px;
  color: var(--catalog-muted);
  font-size: 14px;
}

.topic-guide a {
  display: inline-block;
  border-bottom: 1px solid currentColor;
  font-size: 14px;
  font-weight: 700;
}

.series-guide-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--catalog-line);
}

.series-guide-list a {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--catalog-line);
}

.series-guide-list a:nth-child(odd) {
  padding-right: 24px;
}

.series-guide-list a:nth-child(even) {
  padding-left: 24px;
  border-left: 1px solid var(--catalog-line);
}

.series-guide-list strong {
  display: block;
  font-size: 16px;
}

.series-guide-list small {
  display: block;
  margin-top: 4px;
  color: var(--catalog-muted);
  font-size: 13px;
}

.series-guide-list a:hover strong {
  color: var(--catalog-accent);
}

.discovery-detail-main {
  padding-block: 64px 96px;
}

.discovery-detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 64px;
}

.discovery-detail-actions a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  padding: 0 16px;
  border: 1px solid var(--catalog-ink);
  border-radius: 3px;
  font-size: 14px;
  font-weight: 700;
}

.discovery-detail-actions a:first-child {
  background: var(--catalog-ink);
  color: #fff;
}

.discovery-detail-section {
  margin-top: 72px;
}

.discovery-detail-section--first {
  margin-top: 0;
}

.discovery-detail-heading {
  padding-bottom: 20px;
  border-bottom: 1px solid var(--catalog-ink);
}

.discovery-resource-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.discovery-resource-link {
  display: grid;
  min-width: 0;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  min-height: 86px;
  padding: 16px 18px;
  border-right: 1px solid var(--catalog-line);
  border-bottom: 1px solid var(--catalog-line);
  background: transparent;
}

.discovery-resource-link:nth-child(odd) {
  border-left: 1px solid var(--catalog-line);
}

.discovery-resource-link:hover {
  background: var(--catalog-panel);
}

.discovery-resource-link__index {
  color: var(--catalog-accent);
  font-size: 12px;
  font-weight: 700;
}

.discovery-resource-link small,
.discovery-resource-link strong {
  display: block;
}

.discovery-resource-link small {
  color: var(--catalog-muted);
  font-size: 12px;
}

.discovery-resource-link strong {
  overflow: hidden;
  margin-top: 3px;
  font-size: 15px;
  font-weight: 600;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.discovery-tool-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.discovery-tool-list a {
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 18px;
  border-right: 1px solid var(--catalog-line);
  border-bottom: 1px solid var(--catalog-line);
  font-size: 15px;
  font-weight: 600;
}

.discovery-tool-list a:nth-child(odd) {
  border-left: 1px solid var(--catalog-line);
}

.discovery-tool-list a:hover {
  color: var(--catalog-accent);
}

.discovery-next {
  margin-top: 72px;
  padding: 28px 0;
  border-top: 1px solid var(--catalog-ink);
  border-bottom: 1px solid var(--catalog-line);
}

.discovery-next a {
  font-size: 21px;
  font-weight: 600;
}

.article-related-knowledge {
  margin-top: 72px;
  padding: 54px 0 72px;
  border-top: 1px solid #d7d8d5;
  background: #f7f7f5;
  color: #151515;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
}

.article-related-knowledge[hidden] {
  display: none;
}

.article-related-knowledge__inner {
  width: min(calc(100% - 48px), 1180px);
  margin-inline: auto;
}

.article-related-knowledge__inner > p {
  margin: 0 0 5px;
  color: #62676f;
  font-size: 13px;
}

.article-related-knowledge__inner > h2 {
  margin: 0 0 22px;
  font-size: 28px;
  font-weight: 500;
}

.article-related-knowledge__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.article-related-knowledge .discovery-resource-link {
  grid-template-columns: minmax(0, 1fr) auto;
}

@media (max-width: 1023px) {
  .learning-stage-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .learning-stage:nth-child(3) {
    border-left: 1px solid var(--catalog-line);
  }

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

  .topic-guide:nth-child(3n + 1) {
    border-left: 0;
  }

  .topic-guide:nth-child(odd) {
    border-left: 1px solid var(--catalog-line);
  }

  .article-related-knowledge__grid {
    grid-template-columns: 1fr;
  }

  .article-related-knowledge .discovery-resource-link {
    border-left: 1px solid var(--catalog-line);
  }
}

@media (max-width: 767px) {
  .knowledge-intents {
    grid-template-columns: 1fr;
  }

  .knowledge-intents a,
  .knowledge-intents button {
    min-height: 58px;
  }

  .knowledge-discovery,
  .topic-guide-section,
  .series-guide-section {
    margin-top: 64px;
  }

  [data-discovery-page="knowledge"] .catalog-entrances {
    margin-top: 44px;
    margin-bottom: 44px;
  }

  [data-discovery-page="knowledge"] .catalog-entrance-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  [data-discovery-page="knowledge"] .catalog-entrance-grid > a,
  [data-discovery-page="knowledge"] .catalog-entrance-grid > a:nth-child(3) {
    min-height: 154px;
    padding: 18px 16px;
  }

  [data-discovery-page="knowledge"] .catalog-entrance-grid h3 {
    margin: 12px 0 0;
    font-size: 18px;
  }

  [data-discovery-page="knowledge"] .catalog-entrance-grid p {
    display: none;
  }

  [data-discovery-page="knowledge"] .catalog-entrance-grid strong {
    margin-top: 18px;
    font-size: 13px;
  }

  .knowledge-discovery__header {
    align-items: start;
    flex-direction: column;
  }

  .knowledge-discovery__header > p {
    text-align: left;
  }

  .learning-stage-grid,
  .topic-guide-grid,
  .series-guide-list,
  .discovery-resource-list,
  .discovery-tool-list {
    grid-template-columns: 1fr;
  }

  .learning-stage,
  .learning-stage:nth-child(3),
  .topic-guide,
  .topic-guide:nth-child(3n + 1),
  .topic-guide:nth-child(odd) {
    border-left: 1px solid var(--catalog-line);
  }

  .learning-stage__description,
  .topic-guide p {
    min-height: 0;
  }

  .series-guide-list a:nth-child(odd),
  .series-guide-list a:nth-child(even) {
    padding-right: 0;
    padding-left: 0;
    border-left: 0;
  }

  .discovery-detail-main {
    padding-block: 44px 64px;
  }

  .discovery-detail-actions {
    display: grid;
    margin-bottom: 48px;
  }

  .discovery-detail-actions a {
    justify-content: center;
  }

  .discovery-detail-section {
    margin-top: 56px;
  }

  .discovery-resource-link,
  .discovery-resource-link:nth-child(odd),
  .discovery-tool-list a,
  .discovery-tool-list a:nth-child(odd) {
    border-left: 1px solid var(--catalog-line);
  }

  .discovery-resource-link strong {
    overflow: visible;
    text-overflow: clip;
    white-space: normal;
  }

  .article-related-knowledge {
    padding: 42px 0 56px;
  }

  .article-related-knowledge__inner {
    width: min(calc(100% - 32px), 1180px);
  }
}