:root,
html[data-theme="light"] {
  --theme-markdown-text: var(--color-surface-600);
  --theme-markdown-heading: var(--color-surface-900);
  --theme-markdown-muted: var(--color-surface-500);
  --theme-markdown-link: var(--color-brand-600);
  --theme-markdown-link-hover: var(--color-brand-700);
  --theme-markdown-blockquote-border: var(--color-brand-400);
  --theme-markdown-blockquote-background: color-mix(in srgb, var(--color-brand-400) 14%, var(--theme-focus-surface));
  --theme-markdown-blockquote-text: var(--color-surface-700);
  --theme-markdown-inline-code-background: var(--color-surface-200);
  --theme-markdown-inline-code-text: var(--color-code-inline);
  --theme-markdown-code-background: var(--theme-code-surface);
  --theme-markdown-code-text: var(--theme-code-text);
  --theme-markdown-code-border: color-mix(in srgb, var(--color-surface-200) 80%, transparent);
  --theme-markdown-table-border: var(--color-surface-200);
  --theme-markdown-table-head-background: var(--color-surface-50);
  --theme-markdown-table-row-background: var(--theme-surface-card);
  --theme-markdown-table-row-alt-background: color-mix(in srgb, var(--color-surface-50) 72%, var(--theme-surface-card));
  --theme-markdown-hr: var(--color-surface-200);
  --theme-markdown-kbd-background: var(--theme-surface-card);
  --theme-markdown-kbd-border: var(--color-surface-300);
  --theme-markdown-kbd-text: var(--color-surface-700);
  --theme-markdown-details-background: color-mix(in srgb, var(--color-surface-50) 72%, var(--theme-surface-card));
  --theme-markdown-details-border: var(--color-surface-200);
  --theme-markdown-preview-empty: var(--color-surface-500);
  --theme-markdown-toolbar-border: var(--color-surface-200);
  --theme-markdown-toolbar-button-background: var(--theme-surface-card);
  --theme-markdown-toolbar-button-background-hover: var(--color-surface-50);
  --theme-markdown-toolbar-button-text: var(--color-surface-700);
  --theme-markdown-toolbar-button-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
  --theme-markdown-toolbar-button-hover-shadow: 0 6px 18px rgba(15, 23, 42, 0.08);
  --theme-markdown-history-button-disabled-background: var(--color-surface-100);
  --theme-markdown-history-button-disabled-text: var(--color-surface-400);
  --theme-markdown-resize-bars: var(--color-surface-300);
  --theme-markdown-token-comment: #94a3b8;
  --theme-markdown-token-punctuation: #cbd5e1;
  --theme-markdown-token-property: #93c5fd;
  --theme-markdown-token-selector: #f9a8d4;
  --theme-markdown-token-operator: #67e8f9;
  --theme-markdown-token-keyword: #c4b5fd;
  --theme-markdown-token-function: #fcd34d;
  --theme-markdown-token-string: #86efac;
  --theme-markdown-token-number: #fdba74;
  --theme-markdown-token-tag: #fda4af;
  --theme-markdown-token-attr-name: #7dd3fc;
  --theme-markdown-token-attr-value: #bef264;
 }

html[data-theme="dark"] {
  --theme-markdown-text: var(--color-surface-600);
  --theme-markdown-heading: var(--color-surface-900);
  --theme-markdown-muted: var(--color-surface-500);
  --theme-markdown-link: var(--color-brand-600);
  --theme-markdown-link-hover: var(--color-brand-700);
  --theme-markdown-blockquote-border: var(--color-brand-500);
  --theme-markdown-blockquote-background: color-mix(in srgb, var(--color-brand-500) 16%, var(--theme-focus-surface));
  --theme-markdown-blockquote-text: var(--color-surface-700);
  --theme-markdown-inline-code-background: color-mix(in srgb, var(--color-surface-200) 75%, transparent);
  --theme-markdown-inline-code-text: var(--color-code-inline);
  --theme-markdown-code-background: var(--theme-code-surface);
  --theme-markdown-code-text: var(--theme-code-text);
  --theme-markdown-code-border: color-mix(in srgb, var(--color-surface-300) 72%, transparent);
  --theme-markdown-table-border: var(--color-surface-300);
  --theme-markdown-table-head-background: color-mix(in srgb, var(--color-surface-200) 78%, var(--theme-surface-card));
  --theme-markdown-table-row-background: color-mix(in srgb, var(--theme-surface-card) 92%, transparent);
  --theme-markdown-table-row-alt-background: color-mix(in srgb, var(--color-surface-200) 58%, var(--theme-surface-card));
  --theme-markdown-hr: var(--color-surface-300);
  --theme-markdown-kbd-background: color-mix(in srgb, var(--color-surface-200) 78%, var(--theme-surface-card));
  --theme-markdown-kbd-border: var(--color-surface-400);
  --theme-markdown-kbd-text: var(--color-surface-700);
  --theme-markdown-details-background: color-mix(in srgb, var(--color-surface-200) 52%, var(--theme-surface-card));
  --theme-markdown-details-border: var(--color-surface-300);
  --theme-markdown-preview-empty: var(--color-surface-500);
  --theme-markdown-toolbar-border: var(--color-surface-300);
  --theme-markdown-toolbar-button-background: var(--theme-surface-card);
  --theme-markdown-toolbar-button-background-hover: color-mix(in srgb, var(--color-surface-200) 68%, var(--theme-surface-card));
  --theme-markdown-toolbar-button-text: var(--color-surface-700);
  --theme-markdown-toolbar-button-shadow: 0 1px 2px rgba(2, 6, 23, 0.24);
  --theme-markdown-toolbar-button-hover-shadow: 0 8px 22px rgba(2, 6, 23, 0.32);
  --theme-markdown-history-button-disabled-background: color-mix(in srgb, var(--color-surface-200) 65%, var(--theme-surface-card));
  --theme-markdown-history-button-disabled-text: var(--color-surface-400);
  --theme-markdown-resize-bars: var(--color-surface-400);
}

.markdown-content {
  color: var(--theme-markdown-text);
  font-size: 1rem;
  line-height: 1.9;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  overflow-wrap: anywhere;
}

.markdown-content,
.markdown-content * {
  box-sizing: border-box;
}

.markdown-content > * {
  max-width: 100%;
  min-width: 0;
}

.markdown-content > *:first-child {
  margin-top: 0;
}

.markdown-content > *:last-child {
  margin-bottom: 0;
}

.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4,
.markdown-content h5,
.markdown-content h6 {
  margin-top: 2rem;
  margin-bottom: 1rem;
  color: var(--theme-markdown-heading);
  font-weight: 700;
  line-height: 1.3;
}

.markdown-content h1 {
  font-size: 2rem;
}

.markdown-content h2 {
  font-size: 1.75rem;
}

.markdown-content h3 {
  font-size: 1.5rem;
}

.markdown-content p,
.markdown-content ul,
.markdown-content ol,
.markdown-content blockquote,
.markdown-content pre,
.markdown-content table,
.markdown-table-wrapper,
.markdown-content details,
.markdown-content hr {
  margin-bottom: 1.25rem;
}

.markdown-content ul,
.markdown-content ol {
  padding-left: 1.5rem;
}

.markdown-content ul {
  list-style: disc;
}

.markdown-content ol {
  list-style: decimal;
}

.markdown-content li + li {
  margin-top: 0.35rem;
}

.markdown-content li > p {
  margin-bottom: 0.75rem;
}

.markdown-content li.task-list-item {
  list-style: none;
  margin-left: -1.5rem;
  padding-left: 1.75rem;
  position: relative;
}

.markdown-content li.task-list-item > input[type="checkbox"] {
  position: absolute;
  top: 0.45rem;
  left: 0;
  width: 1rem;
  height: 1rem;
  accent-color: var(--theme-markdown-link);
  pointer-events: none;
}

.markdown-content a {
  color: var(--theme-markdown-link);
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--theme-markdown-link) 35%, transparent);
  overflow-wrap: anywhere;
}

.markdown-content a:hover {
  color: var(--theme-markdown-link-hover);
}

.markdown-content blockquote {
  margin-left: 0;
  border-left: 4px solid var(--theme-markdown-blockquote-border);
  border-radius: 0 var(--radius-card) var(--radius-card) 0;
  background-color: var(--theme-markdown-blockquote-background);
  padding: 1rem 1.25rem;
  color: var(--theme-markdown-blockquote-text);
}

.markdown-content code {
  border-radius: 0.5rem;
  background-color: var(--theme-markdown-inline-code-background);
  padding: 0.15rem 0.4rem;
  color: var(--theme-markdown-inline-code-text);
  font-size: 0.92em;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.markdown-content pre {
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--theme-markdown-code-border);
  border-radius: var(--radius-card);
  background-color: var(--theme-markdown-code-background);
  padding: 1rem 1.25rem;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.markdown-content pre code {
  display: block;
  min-width: max-content;
  background-color: transparent;
  padding: 0;
  color: var(--theme-markdown-code-text);
  overflow-wrap: normal;
  word-break: normal;
}

.markdown-content img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-card);
}

.markdown-content hr {
  border: 0;
  border-top: 1px solid var(--theme-markdown-hr);
}

.markdown-content kbd {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--theme-markdown-kbd-border);
  border-bottom-width: 2px;
  border-radius: 0.5rem;
  background: var(--theme-markdown-kbd-background);
  padding: 0.125rem 0.5rem;
  color: var(--theme-markdown-kbd-text);
  font-size: 0.85em;
  line-height: 1.5;
}

.markdown-content details {
  border: 1px solid var(--theme-markdown-details-border);
  border-radius: var(--radius-card);
  background: var(--theme-markdown-details-background);
  padding: 1rem 1.25rem;
}

.markdown-content summary {
  cursor: pointer;
  color: var(--theme-markdown-heading);
  font-weight: 600;
}

.markdown-content details > :last-child {
  margin-bottom: 0;
}

.markdown-table-wrapper {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.markdown-content table {
  width: max-content;
  min-width: 100%;
  max-width: 100%;
  border-collapse: collapse;
  border-radius: var(--radius-card);
  border: 1px solid var(--theme-markdown-table-border);
  table-layout: auto;
  margin-bottom: 0;
  background: var(--theme-markdown-table-row-background);
}

.markdown-content thead {
  background-color: var(--theme-markdown-table-head-background);
}

.markdown-content tbody tr:nth-child(even) {
  background: var(--theme-markdown-table-row-alt-background);
}

.markdown-content th,
.markdown-content td {
  border: 1px solid var(--theme-markdown-table-border);
  padding: 0.85rem 1rem;
  text-align: left;
  vertical-align: top;
  white-space: nowrap;
}

.markdown-content p,
.markdown-content li,
.markdown-content blockquote,
.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4,
.markdown-content h5,
.markdown-content h6,
.markdown-content td,
.markdown-content th {
  overflow-wrap: anywhere;
  word-break: break-word;
}

.markdown-content .katex {
  font-size: 1.05em;
}

.markdown-content .katex-display {
  overflow-x: auto;
  overflow-y: hidden;
  padding: 0.5rem 0.125rem;
  margin: 1.25rem 0;
}

.markdown-content .token.comment,
.markdown-content .token.prolog,
.markdown-content .token.doctype,
.markdown-content .token.cdata {
  color: var(--theme-markdown-token-comment);
}

.markdown-content .token.punctuation {
  color: var(--theme-markdown-token-punctuation);
}

.markdown-content .token.property,
.markdown-content .token.constant,
.markdown-content .token.symbol,
.markdown-content .token.deleted {
  color: var(--theme-markdown-token-property);
}

.markdown-content .token.boolean,
.markdown-content .token.number {
  color: var(--theme-markdown-token-number);
}

.markdown-content .token.selector,
.markdown-content .token.attr-name,
.markdown-content .token.char,
.markdown-content .token.builtin,
.markdown-content .token.inserted {
  color: var(--theme-markdown-token-selector);
}

.markdown-content .token.operator,
.markdown-content .token.entity,
.markdown-content .token.url,
.markdown-content .language-css .token.string,
.markdown-content .style .token.string {
  color: var(--theme-markdown-token-operator);
}

.markdown-content .token.atrule,
.markdown-content .token.keyword {
  color: var(--theme-markdown-token-keyword);
}

.markdown-content .token.function,
.markdown-content .token.class-name {
  color: var(--theme-markdown-token-function);
}

.markdown-content .token.regex,
.markdown-content .token.important,
.markdown-content .token.variable {
  color: var(--theme-markdown-token-tag);
}

.markdown-content .token.string,
.markdown-content .token.attr-value {
  color: var(--theme-markdown-token-string);
}

.markdown-content .token.tag {
  color: var(--theme-markdown-token-tag);
}

.markdown-content .token.attr-name {
  color: var(--theme-markdown-token-attr-name);
}

.markdown-content .token.attr-value {
  color: var(--theme-markdown-token-attr-value);
}

[data-markdown-content="preview"]:empty::before {
  content: "请输入 Markdown 内容后查看预览。";
  color: var(--theme-markdown-preview-empty);
}

.article-copy-protected {
  user-select: none;
  -webkit-user-select: none;
}

.article-copy-protected pre,
.article-copy-protected pre *,
.article-copy-protected .katex,
.article-copy-protected .katex *,
.article-copy-protected [data-allow-copy],
.article-copy-protected [data-allow-copy] * {
  user-select: text;
  -webkit-user-select: text;
}

.markdown-editor-workspace {
  --markdown-workspace-height: auto;
}

.markdown-editor-toolbar {
  background: var(--theme-editor-toolbar-bg);
}

.markdown-editor-toolbar-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.5rem;
  border: 1px solid var(--theme-markdown-toolbar-border);
  border-radius: 0.85rem;
  background-color: var(--theme-markdown-toolbar-button-background);
  padding: 0.55rem 0.95rem;
  color: var(--theme-markdown-toolbar-button-text);
  font-size: 0.875rem;
  font-weight: 600;
  box-shadow: var(--theme-markdown-toolbar-button-shadow);
  transition: border-color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.markdown-editor-toolbar-button:hover {
  border-color: var(--color-surface-300);
  background-color: var(--theme-markdown-toolbar-button-background-hover);
  box-shadow: var(--theme-markdown-toolbar-button-hover-shadow);
  transform: translateY(-1px);
}

.markdown-editor-toolbar-button:focus-visible {
  outline: none;
  border-color: var(--color-brand-500);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--color-brand-500) 14%, var(--theme-focus-surface));
}

.markdown-editor-toolbar-button-primary {
  border-color: color-mix(in srgb, var(--color-brand-500) 30%, var(--theme-focus-surface));
  background: linear-gradient(180deg, color-mix(in srgb, var(--color-brand-500) 12%, var(--theme-focus-surface)), color-mix(in srgb, var(--color-brand-500) 20%, var(--theme-focus-surface)));
  color: var(--color-brand-700);
}

.markdown-editor-toolbar-button-primary:hover {
  border-color: color-mix(in srgb, var(--color-brand-500) 45%, var(--theme-focus-surface));
  background: linear-gradient(180deg, color-mix(in srgb, var(--color-brand-500) 18%, var(--theme-focus-surface)), color-mix(in srgb, var(--color-brand-500) 28%, var(--theme-focus-surface)));
}

.markdown-editor-history-bar {
  background: var(--theme-editor-history-bg);
}

.markdown-editor-history-badge {
  display: inline-flex;
  align-items: center;
  border-radius: 9999px;
  border: 1px solid color-mix(in srgb, var(--color-brand-500) 18%, var(--theme-focus-surface));
  background-color: var(--theme-surface-card);
  padding: 0.4rem 0.8rem;
  color: var(--color-surface-700);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.06);
}

.markdown-editor-history-actions {
  display: inline-flex;
  align-items: stretch;
  overflow: hidden;
  border: 1px solid var(--theme-markdown-toolbar-border);
  border-radius: 0.95rem;
  background-color: var(--theme-surface-card);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
}

.markdown-editor-history-button {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  border: 0;
  background: transparent;
  padding: 0.75rem 1rem;
  color: var(--color-surface-700);
  font-size: 0.875rem;
  font-weight: 700;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.markdown-editor-history-button + .markdown-editor-history-button {
  border-left: 1px solid var(--theme-markdown-toolbar-border);
}

.markdown-editor-history-button:hover {
  background-color: var(--theme-markdown-toolbar-button-background-hover);
}

.markdown-editor-history-button:focus-visible {
  position: relative;
  z-index: 1;
  outline: none;
  background-color: color-mix(in srgb, var(--color-brand-500) 10%, var(--theme-focus-surface));
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--color-brand-500) 32%, var(--theme-focus-surface));
}

.markdown-editor-history-button:disabled {
  cursor: not-allowed;
  background-color: var(--theme-markdown-history-button-disabled-background);
  color: var(--theme-markdown-history-button-disabled-text);
}

.markdown-editor-history-button-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 9999px;
  background-color: var(--color-surface-100);
  color: var(--color-surface-700);
  font-size: 1rem;
  line-height: 1;
}

.markdown-editor-history-button:disabled .markdown-editor-history-button-icon {
  background-color: var(--color-surface-200);
  color: var(--theme-markdown-history-button-disabled-text);
}

.markdown-editor-pane {
  min-width: 0;
}

.markdown-editor-input,
.markdown-editor-pane-body {
  box-sizing: border-box;
}

.markdown-editor-input {
  overflow: auto;
}

.markdown-editor-pane-preview .markdown-editor-pane-body {
  overflow-y: auto;
}

.markdown-editor-resize-handle {
  cursor: ns-resize;
  user-select: none;
}

.markdown-editor-resize-handle-bars {
  display: inline-flex;
  flex-direction: column;
  gap: 0.25rem;
}

.markdown-editor-resize-handle-bars span {
  display: block;
  width: 2.5rem;
  height: 0.1875rem;
  border-radius: 9999px;
  background-color: var(--theme-markdown-resize-bars);
}

body.markdown-editor-resizing {
  cursor: ns-resize;
  user-select: none;
}

@media (min-width: 1024px) {
  .markdown-editor-workspace {
    height: var(--markdown-workspace-height, min(70vh, 52rem));
    min-height: 32rem;
  }

  .markdown-editor-pane {
    display: flex;
    flex-direction: column;
    min-height: 0;
  }

  .markdown-editor-pane-body {
    flex: 1 1 auto;
    min-height: 0;
  }

  .markdown-editor-pane-editor .markdown-editor-pane-body {
    overflow: auto;
  }

  .markdown-editor-pane-editor .markdown-editor-input {
    height: 100%;
  }

  .markdown-editor-pane-preview .markdown-editor-pane-body {
    max-height: 100%;
  }
}

@media (max-width: 1023.98px) {
  .markdown-editor-pane-preview .markdown-editor-pane-body {
    max-height: 45vh;
  }
}

@media (max-width: 640px) {
  .markdown-content {
    font-size: 0.95rem;
    line-height: 1.8;
  }

  .markdown-content ul,
  .markdown-content ol {
    padding-left: 1.25rem;
  }

  .markdown-content blockquote,
  .markdown-content details {
    padding: 0.875rem 1rem;
  }

  .markdown-content pre {
    padding: 0.875rem 1rem;
  }

  .markdown-content th,
  .markdown-content td {
    padding: 0.75rem 0.875rem;
    white-space: normal;
    overflow-wrap: anywhere;
    word-break: break-word;
  }
}