body {
  font: 14px "Lucida Grande", Helvetica, Arial, sans-serif;
  color: #1f2328;
  background: #ffffff;
}

a {
  color: #00B7FF;
}

.index-shell {
  display: grid;
  gap: 1.25rem;
}

.index-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid #dee2e6;
}

.index-count {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding: 0 0.75rem;
  font-size: 0.875rem;
  color: #495057;
  background: #f8f9fa;
  border: 1px solid #dee2e6;
  border-radius: 999px;
}

.index-toolbar {
  display: grid;
  gap: 0.75rem;
}

.index-search {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.75rem;
}

.index-filters {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 220px));
  gap: 0.75rem;
}

.index-table-wrap {
  border: 1px solid #dee2e6;
  border-radius: 0.75rem;
}

.index-table {
  margin-bottom: 0;
}

.index-table thead th {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #6c757d;
  text-transform: uppercase;
  white-space: nowrap;
  background: #f8f9fa;
  border-bottom-width: 1px;
}

.index-table tbody td {
  padding-top: 0.9rem;
  padding-bottom: 0.9rem;
  vertical-align: middle;
}

.index-table__title {
  min-width: 24rem;
  text-align: center;
}

.index-table thead th:first-child {
  text-align: center;
}

.index-table__title-link {
  display: inline-block;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.45;
  color: #212529;
  text-decoration: none;
}

.index-table__title-link:hover {
  color: #0d6efd;
  text-decoration: underline;
}

.index-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.55rem;
  font-size: 0.82rem;
  color: #495057;
  background: #f8f9fa;
  border: 1px solid #dee2e6;
  border-radius: 999px;
}

.index-code {
  font-size: 0.84rem;
  color: #495057;
}

.index-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.index-tag {
  font-weight: 500;
}

.index-pagination {
  margin-top: 0.5rem;
}

.markdown-body {
  line-height: 1.8;
  color: #1f2328;
  overflow-wrap: break-word;
}

.problem-content-card {
  overflow: hidden;
}

.problem-content-card .card-body {
  overflow-x: auto;
}

.markdown-body h2,
.markdown-body h3,
.markdown-body h4 {
  margin-top: 1.75rem;
  margin-bottom: 1rem;
}

.markdown-body p,
.markdown-body ul,
.markdown-body ol,
.markdown-body blockquote,
.markdown-body pre,
.markdown-body table {
  margin-bottom: 1rem;
}

.markdown-body table {
  display: block;
  width: max-content;
  max-width: 100%;
  margin: 1rem auto 1.5rem;
  overflow-x: auto;
  border: 1px solid #d0d5dd;
  border-collapse: collapse;
  border-spacing: 0;
  word-break: break-word;
}

.markdown-body th,
.markdown-body td {
  min-width: 4.5rem;
  padding: 0.42rem 0.58rem;
  vertical-align: top;
  border: 1px solid #d0d5dd;
}

.markdown-body th {
  font-weight: 700;
  text-align: center;
  background: #f3f4f6;
}

.markdown-body tbody tr:nth-child(even) {
  background: #fafafa;
}

.markdown-body tbody tr:hover {
  background: #f5f9ff;
}

.markdown-body td > :first-child,
.markdown-body th > :first-child {
  margin-top: 0;
}

.markdown-body td > :last-child,
.markdown-body th > :last-child {
  margin-bottom: 0;
}

.markdown-body pre {
  padding: 1rem;
  overflow-x: auto;
  background: #f6f8fa;
  border-radius: 0.5rem;
}

.markdown-body code {
  padding: 0.15rem 0.35rem;
  background: #f6f8fa;
  border-radius: 0.25rem;
}

.markdown-body pre code {
  padding: 0;
  background: transparent;
}

.markdown-body .toc-body,
.markdown-body .table-of-contents {
  margin-bottom: 1.5rem;
  padding: 1rem 1.25rem;
  background: #f8f9fa;
  border: 1px solid #dee2e6;
  border-radius: 0.5rem;
}

.markdown-body .toc-title h3 {
  margin: 0 0 0.75rem;
  font-size: 1rem;
}

.markdown-body .toc-content ol,
.markdown-body .table-of-contents ol {
  margin-bottom: 0;
  padding-left: 1.25rem;
}

.markdown-body .katex-display {
  overflow-x: auto;
  overflow-y: hidden;
  padding: 0.25rem 0;
}

.markdown-body figure {
  margin: 1rem 0;
  text-align: center;
}

.markdown-body figure img,
.markdown-body img {
  max-width: 100%;
  height: auto;
}

.markdown-body figcaption {
  margin-top: 0.35rem;
  color: #667085;
  font-size: 0.9rem;
}

.markdown-body .line-numbers-mode {
  margin: 1rem 0;
}

.markdown-body .line-numbers-mode .code-info-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.35rem 0.75rem;
  color: #475467;
  background: #eef2f6;
  border: 1px solid #d0d5dd;
  border-bottom: 0;
  border-radius: 0.5rem 0.5rem 0 0;
  font-size: 0.85rem;
}

.markdown-body .line-numbers-mode pre {
  margin-top: 0;
  border-radius: 0 0 0.5rem 0.5rem;
}

.markdown-body .admonition,
.markdown-body .warning,
.markdown-body .error,
.markdown-body .info {
  margin: 1.25rem 0;
  padding: 0.9rem 1rem;
  border-left: 4px solid #667085;
  background: #f8fafc;
}

.markdown-body .admonition-title {
  margin: 0 0 0.5rem;
  font-weight: 700;
}

.markdown-body .admonition.warning,
.markdown-body .warning {
  border-left-color: #f59e0b;
  background: #fffbeb;
}

.markdown-body .admonition.danger,
.markdown-body .admonition.error,
.markdown-body .error {
  border-left-color: #ef4444;
  background: #fef2f2;
}

.markdown-body .admonition.info,
.markdown-body .info {
  border-left-color: #0ea5e9;
  background: #eff6ff;
}

.markdown-body details {
  margin: 1rem 0;
  border: 1px solid #d0d5dd;
  border-radius: 0.5rem;
  overflow: hidden;
}

.markdown-body details summary {
  padding: 0.65rem 0.85rem;
  cursor: pointer;
  background: #f8fafc;
  font-weight: 700;
}

.markdown-body details article {
  padding: 0.85rem;
}

.markdown-body .center {
  display: flex;
  justify-content: center;
}

.markdown-body .oneline,
.markdown-body .line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
}

.markdown-body .blackboard {
  margin: 1.25rem 0;
  padding: 1rem;
  color: #e5e7eb;
  background: #1f2937;
  border: 8px solid #8b7355;
  border-radius: 0.25rem;
}

.markdown-body .blackboard-content {
  color: inherit;
}

.markdown-body .task-list {
  padding-left: 0;
  list-style: none;
}

.markdown-body .task-list-item input {
  margin-right: 0.5rem;
}

.markdown-body .emoji {
  width: 1.2em;
  height: 1.2em;
  vertical-align: -0.2em;
}

.markdown-body .graphviz,
.markdown-body .viz-contain {
  display: flex;
  justify-content: center;
  overflow-x: auto;
}

.markdown-body viz-gallery {
  display: block;
  margin: 1rem 0;
  padding: 1rem;
  border: 1px dashed #d0d5dd;
  border-radius: 0.5rem;
  background: #f8fafc;
}

.markdown-body .image-wrapper {
  gap: 0.35rem;
}

.markdown-body .image-extension-badge {
  font-size: 0.85rem;
}

.markdown-body abbr[title],
.markdown-body abbr[data-original-title] {
  cursor: help;
  border-bottom: 1px dotted #667085;
}

.markdown-body iframe.bilibili_iframe {
  display: block;
  width: min(100%, 640px);
  height: 400px;
  margin: 1rem auto;
}

@media (max-width: 767.98px) {
  .index-head {
    align-items: start;
  }

  .index-head,
  .index-search,
  .index-filters {
    grid-template-columns: 1fr;
  }

  .index-filters {
    grid-template-columns: 1fr;
  }

  .index-table__title {
    min-width: 16rem;
  }
}