.title {
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}
.title-1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.title-2 {
  font-size: 1.5rem;
  font-weight: 600;
}
.title-3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-secondary);
}
.title-4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
}
.text {
  color: var(--text-secondary);
  line-height: 1.6;
}
.text-muted {
  color: var(--text-muted);
}
.text-sm {
  font-size: 0.875rem;
}
.text-lg {
  font-size: 1.125rem;
}
.spacer {
  height: 1rem;
}
.spacer-2 {
  height: 0.5rem;
}
.spacer-4 {
  height: 1rem;
}
.spacer-8 {
  height: 2rem;
}
.divider {
  border: none;
  border-top: 1px solid var(--border-subtle);
  margin: 1rem 0;
}
.c-code {
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', 'Consolas', monospace;
  font-size: 0.75rem;
  line-height: 1.6;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 16px;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--text-primary);
  margin: 0;
  position: relative;
}
.c-code code {
  font-family: inherit;
  background: none;
  padding: 0;
}
.c-code-lang {
  position: absolute;
  top: 8px;
  left: 12px;
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  user-select: none;
  opacity: 0.6;
}
.c-code-copy {
  position: absolute;
  top: 8px;
  right: 8px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-muted);
  padding: 4px 8px;
  font-size: 0.7rem;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.15s ease;
}
.c-code:hover .c-code-copy {
  opacity: 1;
}
.c-code-copy:hover {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}
.c-code-table {
  border-collapse: collapse;
  width: 100%;
  margin-top: 12px;
}
.c-code-line--highlight {
  background: rgba(var(--primary-rgb, 99, 102, 241), 0.08);
}
.c-code-line-number {
  user-select: none;
  text-align: right;
  padding-right: 16px;
  color: var(--text-muted);
  opacity: 0.4;
  white-space: nowrap;
  width: 1%;
  vertical-align: top;
}
.c-code-line-content {
  white-space: pre-wrap;
  word-break: break-word;
}
.c-code-token--keyword {
  color: var(--primary, #818cf8);
}
.c-code-token--string {
  color: var(--success, #34d399);
}
.c-code-token--comment {
  color: var(--text-muted);
  font-style: italic;
}
.c-code-token--number {
  color: var(--warning, #fbbf24);
}
.c-code-token--builtin {
  color: var(--info, #38bdf8);
}
.c-code-token--decorator {
  color: var(--warning, #fbbf24);
}
.c-code-token--operator {
  color: var(--text-secondary);
}
@media (max-width: 768px) {
  .title-1 {
    font-size: 1.75rem;
  }
  .title-2 {
    font-size: 1.25rem;
  }
  .title-3 {
    font-size: 1rem;
  }
}
.prose {
  color: var(--text-primary);
  line-height: 1.75;
  font-size: 0.875rem;
  max-width: 100%;
  word-wrap: break-word;
  overflow-wrap: break-word;
}
.prose h1,
.prose h2,
.prose h3,
.prose h4,
.prose h5,
.prose h6 {
  color: var(--text-primary);
  font-weight: 600;
  line-height: 1.3;
  margin-top: 1.5em;
  margin-bottom: 0.5em;
}
.prose h1:first-child,
.prose h2:first-child,
.prose h3:first-child,
.prose h4:first-child,
.prose h5:first-child,
.prose h6:first-child {
  margin-top: 0;
}
.prose h1:hover .heading-anchor,
.prose h2:hover .heading-anchor,
.prose h3:hover .heading-anchor,
.prose h4:hover .heading-anchor,
.prose h5:hover .heading-anchor,
.prose h6:hover .heading-anchor {
  opacity: 1;
}
.prose h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.prose h2 {
  font-size: 1.5rem;
  padding-bottom: 0.3em;
  border-bottom: 1px solid var(--border-subtle);
}
.prose h3 {
  font-size: 1.125rem;
}
.prose h4 {
  font-size: 1rem;
}
.prose h5 {
  font-size: 0.875rem;
}
.prose h6 {
  font-size: 0.875rem;
  color: var(--text-muted);
}
.prose p {
  margin-top: 0;
  margin-bottom: 1em;
}
.prose a {
  color: var(--primary);
  text-decoration: none;
}
.prose a:hover {
  text-decoration: underline;
}
.prose strong {
  font-weight: 600;
  color: var(--text-primary);
}
.prose em {
  font-style: italic;
}
.prose ul,
.prose ol {
  margin-top: 0;
  margin-bottom: 1em;
  padding-left: 1.5em;
}
.prose ul {
  list-style-type: disc;
}
.prose ol {
  list-style-type: decimal;
}
.prose li {
  margin-bottom: 0.25em;
}
.prose li > ul,
.prose li > ol {
  margin-top: 0.25em;
  margin-bottom: 0;
}
.prose ul ul {
  list-style-type: circle;
}
.prose ul ul ul {
  list-style-type: square;
}
.prose .task-list-item {
  list-style: none;
  margin-left: -1.5em;
  padding-left: 0;
}
.prose .task-list-item input[type="checkbox"] {
  margin-right: 0.5em;
  vertical-align: middle;
  position: relative;
  top: -1px;
}
.prose blockquote {
  margin: 1em 0;
  padding: 12px 16px;
  border-left: 3px solid var(--border-color);
  color: var(--text-secondary);
  background: var(--bg-secondary);
  border-radius: 0 8px 8px 0;
}
.prose blockquote p:last-child {
  margin-bottom: 0;
}
.prose code {
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', 'Consolas', monospace;
  font-size: 0.85em;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: 2px;
  padding: 0.15em 0.35em;
  color: var(--text-primary);
}
.prose pre code {
  background: none;
  border: none;
  border-radius: 0;
  padding: 0;
  font-size: inherit;
}
.prose .prose-code-wrapper {
  margin: 1em 0;
}
.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 1em 0;
  font-size: 0.75rem;
  overflow-x: auto;
  display: block;
}
@media (min-width: 768px) {
  .prose table {
    display: table;
  }
}
.prose thead th {
  background: var(--bg-tertiary);
  font-weight: 600;
  text-align: left;
  padding: 8px 12px;
  border-bottom: 2px solid var(--border-color);
  color: var(--text-primary);
  white-space: nowrap;
}
.prose tbody td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}
.prose tbody tr:hover td {
  background: var(--bg-secondary);
}
.prose hr {
  border: none;
  border-top: 1px solid var(--border-subtle);
  margin: 1.5em 0;
}
.prose img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin: 1em 0;
}
.prose del {
  color: var(--text-muted);
  text-decoration: line-through;
}
.prose dt {
  font-weight: 600;
  margin-top: 1em;
}
.prose dd {
  margin-left: 1.5em;
  margin-bottom: 0.5em;
}
.callout {
  margin: 1em 0;
  padding: 12px 16px;
  border-radius: 12px;
  border-left: 4px solid;
}
.callout .callout-title {
  font-weight: 600;
  margin-bottom: 4px;
  font-size: 0.875rem;
}
.callout .callout-body {
  font-size: 0.875rem;
  color: var(--text-secondary);
}
.callout .callout-body p:last-child {
  margin-bottom: 0;
}
.callout-note {
  background: var(--info-bg);
  border-color: var(--info);
}
.callout-note .callout-title {
  color: var(--info);
}
.callout-tip {
  background: var(--success-bg);
  border-color: var(--success);
}
.callout-tip .callout-title {
  color: var(--success);
}
.callout-important {
  background: var(--info-bg);
  border-color: var(--primary);
}
.callout-important .callout-title {
  color: var(--primary);
}
.callout-warning {
  background: var(--warning-bg);
  border-color: var(--warning);
}
.callout-warning .callout-title {
  color: var(--warning);
}
.callout-caution {
  background: var(--danger-bg);
  border-color: var(--danger);
}
.callout-caution .callout-title {
  color: var(--danger);
}
.mermaid-block {
  margin: 1em 0;
  text-align: center;
}
.mermaid-block.mermaid-rendered svg {
  max-width: 100%;
  height: auto;
}
.mermaid-loading {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 16px;
  color: var(--text-muted);
  font-size: 0.75rem;
}
.math-block {
  margin: 1em 0;
  text-align: center;
  overflow-x: auto;
}
.math-block:not(.math-rendered) {
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', 'Consolas', monospace;
  color: var(--text-muted);
  font-size: 0.75rem;
}
.math-inline:not(.math-rendered) {
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', 'Consolas', monospace;
  color: var(--text-muted);
  font-size: 0.85em;
}
.prose-with-toc {
  display: flex;
  gap: 32px;
  align-items: flex-start;
}
.prose-with-toc .prose {
  flex: 1;
  min-width: 0;
}
.prose-toc {
  position: sticky;
  top: 16px;
  width: 220px;
  flex-shrink: 0;
  order: 1;
  max-height: calc(100vh - 4rem);
  overflow-y: auto;
  padding: 12px;
  border-left: 1px solid var(--border-subtle);
}
.prose-toc-title {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.prose-toc-item {
  display: block;
  padding: 4px 0;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.75rem;
  line-height: 1.4;
  transition: color 0.15s ease;
}
.prose-toc-item:hover {
  color: var(--primary);
}
.prose-toc-level-1 {
  padding-left: 0;
}
.prose-toc-level-2 {
  padding-left: 12px;
}
.prose-toc-level-3 {
  padding-left: 24px;
}
.prose-toc-level-4 {
  padding-left: 32px;
}
.prose-toc-level-5 {
  padding-left: 44px;
}
.prose-toc-level-6 {
  padding-left: 56px;
}
@media (max-width: 1024px) {
  .prose-with-toc {
    flex-direction: column;
  }
  .prose-toc {
    position: static;
    width: 100%;
    border-left: none;
    border-bottom: 1px solid var(--border-subtle);
    margin-bottom: 16px;
    order: -1;
  }
}