/* 风格 C — 仿宋雅致 */
/* Custom minimal styles for EDSIONC Knowledge Base */

:root {
  --content-max-width: 800px;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-serif: "FangSong", "FangSong_GB2312", "STFangsong", "Noto Serif SC", serif;
  --font-mono: "JetBrains Mono", "Fira Code", "Cascadia Code", monospace;
  --color-bg: #fdfaf5;
  --color-text: #3d322b;
  --color-border: #d4c5b2;
  --color-accent: #c9a87c;
  --color-heading: #5d4037;
  --color-table-header: #f5ede0;
  --color-blockquote: #6d5d4b;
  --color-strong: #4e342e;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg) !important;
  color: var(--color-text);
  line-height: 2.0;
  letter-spacing: 0.02em;
  word-spacing: 0.06em;
}

body.bg-slate-50 {
  background-color: var(--color-bg) !important;
}

/* Wider content area */
.max-w-\[720px\] {
  max-width: 800px !important;
}

/* Main content typography */
.markdown-body {
  font-family: var(--font-serif);
  font-size: 17px;
  line-height: 2.0;
  color: var(--color-text);
  letter-spacing: 0.02em;
  word-spacing: 0.06em;
}

.markdown-body p {
  margin-bottom: 1.2em;
  line-height: 2.0;
  text-align: justify;
}

.markdown-body h1 {
  font-size: 2em;
  font-weight: 700;
  margin-top: 1.5em;
  margin-bottom: 0.8em;
  color: var(--color-heading);
}

.markdown-body h2 {
  font-size: 1.5em;
  font-weight: 700;
  margin: 1.6em 0 0.7em;
  padding-bottom: 0.3em;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-heading);
  letter-spacing: 0.04em;
}

.markdown-body h3 {
  font-size: 1.2em;
  font-weight: 700;
  margin: 1.3em 0 0.5em;
  color: #6d4c41;
}

.markdown-body h4 {
  font-size: 1.1em;
  font-weight: 600;
  margin: 1.2em 0 0.5em;
  color: #6d4c41;
}

.markdown-body li {
  margin-bottom: 0.5em;
  line-height: 1.9;
}

.markdown-body ul,
.markdown-body ol {
  margin: 0.8em 0;
  padding-left: 1.5em;
}

.markdown-body li > ul,
.markdown-body li > ol {
  margin-top: 0.3em;
}

/* Formula styling */
.markdown-body .formula {
  font-family: "Times New Roman", "STIX Two Math", serif;
  font-style: italic;
  padding: 0 3px;
  color: var(--color-heading);
}

.markdown-body .formula-block {
  display: block;
  text-align: center;
  margin: 1.5em 0;
  padding: 1em;
  font-size: 1.1em;
  font-family: "Times New Roman", "STIX Two Math", serif;
  font-style: italic;
  background: #faf5eb;
  border-radius: 6px;
  border-left: 3px solid var(--color-accent);
  line-height: 2.2;
  color: var(--color-heading);
}

.markdown-body .formula-block sup {
  font-size: 0.8em;
  font-style: italic;
}

.markdown-body .formula-block sub {
  font-size: 0.8em;
}

/* Better sup/sub styling */
.markdown-body sup {
  font-size: 0.8em;
  line-height: 1;
}

.markdown-body sub {
  font-size: 0.8em;
  line-height: 1;
}

/* Better table styling */
.markdown-body table {
  border-collapse: collapse;
  width: 100%;
  margin: 1.5em 0;
  display: table;
  font-size: 0.95em;
}

.markdown-body table th,
.markdown-body table td {
  border: 1px solid var(--color-border);
  padding: 10px 14px;
  text-align: left;
  line-height: 1.8;
}

.markdown-body table th {
  background: var(--color-table-header);
  font-weight: 700;
  color: var(--color-heading);
}

/* Better code blocks */
.markdown-body pre {
  background: #faf5eb;
  border-radius: 6px;
  padding: 16px;
  overflow-x: auto;
  line-height: 1.8;
  margin: 1.2em 0;
}

/* Pre blocks for knowledge framework */
.markdown-body pre:not(.codehilite) {
  background: #faf5eb;
  border: 1px solid #e0d5c5;
  border-radius: 6px;
  padding: 16px;
  line-height: 1.8;
  font-family: var(--font-serif);
  font-size: 0.95em;
  white-space: pre;
  color: var(--color-text);
}

/* Nicer blockquotes */
.markdown-body blockquote {
  border-left: 4px solid var(--color-accent);
  padding: 0.8em 1.2em;
  margin: 1.5em 0;
  background: #faf5eb;
  color: var(--color-blockquote);
  border-radius: 0 4px 4px 0;
  line-height: 1.8;
}

.markdown-body blockquote p {
  margin-bottom: 0.3em;
}

/* Strong/bold text */
.markdown-body strong {
  font-weight: 800;
  color: var(--color-strong);
}

/* Cleaner links */
a {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Simplify sidebar */
aside h2,
aside h3 {
  font-size: 0.9em;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #57606a;
}

/* Horizontal rule styling */
.markdown-body hr {
  margin: 2em 0;
  border: 0;
  border-top: 1px solid var(--color-border);
}