/* Markdown 渲染样式：页面预览与导出的 HTML 共用，颜色取自页面主题变量 */
.md-preview { color: var(--text); font-family: var(--sans); font-size: 15px; line-height: 1.75; overflow-wrap: break-word; }
.md-preview > .md-blk:first-child > :first-child, .md-preview > :first-child { margin-top: 0; }
.md-preview h1, .md-preview h2, .md-preview h3, .md-preview h4, .md-preview h5, .md-preview h6 {
  margin: 1.4em 0 0.6em; font-weight: 650; line-height: 1.35; scroll-margin-top: 8px;
}
.md-preview h1 { font-size: 1.85em; padding-bottom: 0.3em; border-bottom: 1px solid var(--border); }
.md-preview h2 { font-size: 1.45em; padding-bottom: 0.25em; border-bottom: 1px solid var(--border); }
.md-preview h3 { font-size: 1.22em; }
.md-preview h4 { font-size: 1.05em; }
.md-preview h5, .md-preview h6 { font-size: 0.95em; color: var(--muted); }
.md-preview p, .md-preview ul, .md-preview ol, .md-preview blockquote, .md-preview table, .md-preview pre,
.md-preview details, .md-preview .md-code, .md-preview .md-mermaid { margin: 0 0 1em; }
.md-preview a { color: var(--accent); text-decoration: none; }
.md-preview a:hover { text-decoration: underline; }
.md-preview strong { font-weight: 650; }
.md-preview hr { height: 0; margin: 1.6em 0; border: 0; border-top: 2px solid var(--border); }
.md-preview img { max-width: 100%; height: auto; border-radius: 4px; }
.md-preview ul, .md-preview ol { padding-left: 1.8em; }
.md-preview li + li, .md-preview li > ul, .md-preview li > ol { margin-top: 0.25em; }
.md-preview li > ul, .md-preview li > ol { margin-bottom: 0; }
.md-preview li:has(> input[type="checkbox"]) { list-style: none; margin-left: -1.4em; }
.md-preview li > input[type="checkbox"] { margin: 0 0.45em 0 0; vertical-align: -0.1em; accent-color: var(--accent); }
.md-preview blockquote { padding: 0.2em 1em; border-left: 4px solid var(--border); color: var(--muted); }
.md-preview blockquote > :last-child { margin-bottom: 0; }
.md-preview code {
  padding: 0.15em 0.4em; border-radius: 4px; background: var(--surface-2); border: 1px solid var(--border);
  font: 0.86em var(--mono);
}
.md-preview pre { overflow: auto; padding: 12px 14px; border-radius: 6px; background: var(--surface-2); border: 1px solid var(--border); line-height: 1.55; }
.md-preview pre code { padding: 0; border: 0; background: none; font-size: 13px; }
.md-preview table { display: block; width: max-content; max-width: 100%; overflow: auto; border-collapse: collapse; }
.md-preview th, .md-preview td { padding: 6px 13px; border: 1px solid var(--border); }
.md-preview th { background: var(--surface-2); font-weight: 650; }
.md-preview tr:nth-child(2n) td { background: color-mix(in srgb, var(--surface-2) 60%, transparent); }
.md-preview details { padding: 0.5em 1em; border: 1px solid var(--border); border-radius: 6px; }
.md-preview summary { cursor: pointer; font-weight: 600; }
.md-preview details[open] summary { margin-bottom: 0.5em; }
.md-preview kbd {
  padding: 0.1em 0.45em; border: 1px solid var(--border); border-bottom-width: 2px; border-radius: 4px;
  background: var(--surface-2); font: 0.85em var(--mono);
}

/* 代码块 */
.md-preview .md-code { border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
.md-preview .md-code pre { margin: 0; border: 0; border-radius: 0; }
.md-preview .md-code-bar {
  display: flex; justify-content: space-between; align-items: center; padding: 2px 6px 2px 12px;
  border-bottom: 1px solid var(--border); background: var(--surface-2); color: var(--muted); font: 12px var(--mono);
}
.md-preview .md-code-copy {
  padding: 2px 8px; border: 1px solid transparent; border-radius: 4px; background: none; color: var(--muted);
  font: 12px var(--sans); cursor: pointer;
}
.md-preview .md-code-copy:hover { border-color: var(--border); color: var(--accent); }
.hljs-keyword, .hljs-selector-tag, .hljs-built_in, .hljs-type, .hljs-meta .hljs-keyword { color: var(--j-lit); }
.hljs-string, .hljs-regexp, .hljs-addition, .hljs-meta .hljs-string { color: var(--j-str); }
.hljs-number, .hljs-literal, .hljs-symbol, .hljs-bullet { color: var(--j-num); }
.hljs-title, .hljs-title.function_, .hljs-section, .hljs-name, .hljs-selector-id, .hljs-selector-class { color: var(--j-key); }
.hljs-attr, .hljs-attribute, .hljs-variable, .hljs-template-variable, .hljs-property { color: var(--j-key); }
.hljs-comment, .hljs-quote, .hljs-meta { color: var(--muted); font-style: italic; }
.hljs-deletion { color: var(--del-fg, #c3262b); }
.hljs-emphasis { font-style: italic; }
.hljs-strong { font-weight: 700; }

/* 提示块 > [!NOTE] */
.md-preview .md-alert { color: inherit; }
.md-preview .md-alert-title { margin: 0.2em 0 0.3em; font-weight: 650; }
.md-preview .md-alert-note { border-left-color: #2f81f7; }
.md-preview .md-alert-note .md-alert-title { color: #2f81f7; }
.md-preview .md-alert-tip { border-left-color: #1f9d55; }
.md-preview .md-alert-tip .md-alert-title { color: #1f9d55; }
.md-preview .md-alert-important { border-left-color: #8250df; }
.md-preview .md-alert-important .md-alert-title { color: #8250df; }
.md-preview .md-alert-warning { border-left-color: #c58a00; }
.md-preview .md-alert-warning .md-alert-title { color: #c58a00; }
.md-preview .md-alert-caution { border-left-color: #d1242f; }
.md-preview .md-alert-caution .md-alert-title { color: #d1242f; }
.md-preview .md-alert-note .md-alert-title::before { content: "ℹ️ "; }
.md-preview .md-alert-tip .md-alert-title::before { content: "💡 "; }
.md-preview .md-alert-important .md-alert-title::before { content: "📌 "; }
.md-preview .md-alert-warning .md-alert-title::before { content: "⚠️ "; }
.md-preview .md-alert-caution .md-alert-title::before { content: "⛔ "; }

/* Mermaid 与公式 */
.md-preview .md-mermaid { text-align: center; overflow-x: auto; }
.md-preview .md-mermaid svg { max-width: 100%; height: auto; }
.md-preview .md-mermaid.pending { opacity: 0.55; }
.md-preview .md-mermaid-src { text-align: left; font: 13px/1.55 var(--mono); }
.md-preview .md-math.display { display: block; overflow-x: auto; overflow-y: hidden; margin: 0 0 1em; text-align: center; }
.md-preview .md-math:not([data-done]) { font-family: var(--mono); color: var(--muted); }
.md-preview .md-error {
  margin: 0 0 0.6em; padding: 8px 12px; border-radius: 6px; text-align: left; white-space: pre-wrap;
  background: var(--del-bg, #ffecec); color: var(--del-fg, #c3262b); font: 12.5px/1.5 var(--mono);
}