.jyqb {
  display: grid;
  grid-template-columns: minmax(220px, 280px) minmax(0, 1fr);
  gap: 22px;
  align-items: start;
  margin: 24px 0 36px;
  color: #1f2933;
}

.jyqb-sidebar {
  position: sticky;
  top: 24px;
  max-height: calc(100vh - 48px);
  overflow: auto;
  border: 1px solid #e3e8ef;
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 14px 34px rgba(22, 34, 51, 0.08);
}

.jyqb-sidebar-head {
  padding: 18px 18px 12px;
  border-bottom: 1px solid #edf1f5;
}

.jyqb-sidebar-head h2,
.jyqb-current-title {
  margin: 0;
  font-size: 20px;
  line-height: 1.35;
  font-weight: 700;
  letter-spacing: 0;
}

.jyqb-category-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.jyqb-category-node {
  margin: 0;
}

.jyqb-level-1 .jyqb-category-btn {
  padding-left: 30px;
}

.jyqb-level-2 .jyqb-category-btn {
  padding-left: 44px;
}

.jyqb-level-3 .jyqb-category-btn {
  padding-left: 58px;
}

.jyqb-category-btn {
  display: flex;
  width: 100%;
  min-height: 42px;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  border: 0;
  border-bottom: 1px solid #f1f4f7;
  padding: 10px 18px;
  background: transparent;
  color: #243142;
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.jyqb-category-btn:hover,
.jyqb-category-btn.is-active {
  background: #e9f2ff;
  color: #0f4c8a;
}

.jyqb-category-count {
  flex: 0 0 auto;
  min-width: 28px;
  border-radius: 999px;
  padding: 2px 8px;
  background: #eef2f5;
  color: #697586;
  font-size: 12px;
  text-align: center;
}

.jyqb-category-btn.is-active .jyqb-category-count {
  background: #0f4c8a;
  color: #ffffff;
}

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

.jyqb-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
}

.jyqb-eyebrow {
  margin-bottom: 4px;
  color: #607085;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.jyqb-search {
  flex: 0 1 320px;
}

.jyqb-search-input {
  width: 100%;
  min-height: 42px;
  border: 1px solid #d7dee8;
  border-radius: 8px;
  padding: 8px 12px;
  background: #ffffff;
  color: #1f2933;
  font-size: 14px;
}

.jyqb-search-input:focus {
  outline: 2px solid rgba(15, 76, 138, 0.22);
  border-color: #0f4c8a;
}

.jyqb-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  min-height: 180px;
  transition: opacity 160ms ease;
}

.jyqb.is-layout-grid .jyqb-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.jyqb.is-loading .jyqb-grid {
  opacity: 0.45;
}

.jyqb-card {
  overflow: hidden;
  border: 1px solid #e3e8ef;
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 8px 22px rgba(22, 34, 51, 0.06);
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.jyqb-card:hover {
  transform: translateY(-2px);
  border-color: #b9cadc;
  box-shadow: 0 16px 34px rgba(22, 34, 51, 0.12);
}

.jyqb-card-link {
  display: flex;
  min-height: 100%;
  flex-direction: row;
  color: inherit;
  text-decoration: none;
}

.jyqb-card-thumb {
  flex: 0 0 170px;
  aspect-ratio: 16 / 9;
  background-position: center;
  background-size: cover;
  background-color: #dfe7ed;
}

.jyqb.is-layout-grid .jyqb-card-link {
  flex-direction: column;
}

.jyqb.is-layout-grid .jyqb-card-thumb {
  flex-basis: auto;
}

.jyqb-card-thumb.is-empty {
  background:
    linear-gradient(135deg, rgba(15, 76, 138, 0.16), rgba(46, 125, 87, 0.18)),
    #eef3f7;
}

.jyqb-card-body {
  display: flex;
  min-height: auto;
  flex: 1;
  flex-direction: column;
  padding: 20px 24px;
}

.jyqb.is-layout-grid .jyqb-card-body {
  min-height: 186px;
  padding: 15px;
}

.jyqb-card-title {
  margin: 0 0 10px;
  color: #17212f;
  font-size: 18px;
  line-height: 1.45;
  letter-spacing: 0;
}

.jyqb-card-excerpt {
  margin: 0;
  color: #536273;
  font-size: 15px;
  line-height: 1.8;
  white-space: normal;
}

.jyqb-card-excerpt-text {
  margin: 0;
}

.jyqb-card-images {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 260px));
  gap: 12px;
  margin-top: 14px;
}

.jyqb-card-images figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid #e3e8ef;
  border-radius: 8px;
  background: #f7fafc;
}

.jyqb-card-images img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
}

.jyqb-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
  padding-top: 16px;
}

.jyqb-card-meta span {
  border-radius: 999px;
  padding: 3px 9px;
  background: #eef6ef;
  color: #2e6d43;
  font-size: 12px;
}

.jyqb-pager {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 22px;
}

.jyqb-page-btn {
  min-width: 84px;
  min-height: 38px;
  border: 1px solid #cad5df;
  border-radius: 8px;
  background: #ffffff;
  color: #243142;
  cursor: pointer;
}

.jyqb-page-btn:hover:not(:disabled) {
  border-color: #0f4c8a;
  color: #0f4c8a;
}

.jyqb-page-btn:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.jyqb-page-info,
.jyqb-empty,
.jyqb-empty-tree {
  color: #607085;
  font-size: 14px;
}

.custom-math-inline {
  display: inline;
  white-space: nowrap;
}

.custom-math-block {
  display: block;
  margin: 14px 0;
  overflow-x: auto;
  text-align: center;
}

.jyqb-empty {
  grid-column: 1 / -1;
  border: 1px dashed #cbd6df;
  border-radius: 8px;
  padding: 36px 20px;
  background: #ffffff;
  text-align: center;
}

.jyqb-empty-tree {
  padding: 18px;
}

@media (max-width: 1180px) {
  .jyqb.is-layout-grid .jyqb-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  .jyqb {
    grid-template-columns: 1fr;
  }

  .jyqb-sidebar {
    position: relative;
    top: auto;
    max-height: 340px;
  }

  .jyqb-toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .jyqb-search {
    flex-basis: auto;
  }
}

@media (max-width: 560px) {
  .jyqb.is-layout-grid .jyqb-grid {
    grid-template-columns: 1fr;
  }

  .jyqb-card-body {
    min-height: 156px;
  }
}