:root {
  --md-text: #2f363d;
  --md-muted: #68737d;
  --md-border: #d8dee4;
  --md-code-background: #f6f8fa;
  --md-accent: #2563a6;
}

#write {
  width: min(100%, 860px);
  margin: 0 auto;
  color: var(--md-text);
  font-family:
    "FandolHei", "Noto Sans CJK SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  overflow-wrap: break-word;
}

#write h1,
#write h2,
#write h3,
#write h4 {
  color: #20262c;
  font-weight: 650;
  line-height: 1.35;
}

#write h1 {
  margin: 2.2em 0 1em;
  padding-bottom: 0.35em;
  border-bottom: 1px solid var(--md-border);
  font-size: 2em;
}

#write h2 {
  margin: 2em 0 0.8em;
  font-size: 1.55em;
}

#write h3 {
  margin: 1.7em 0 0.7em;
  font-size: 1.25em;
}

#write p {
  margin: 0 0 1em;
}

#write a {
  color: var(--md-accent);
  text-decoration: none;
}

#write blockquote {
  margin: 1.25em 0;
  padding: 0.75em 1em;
  border-left: 4px solid #b7c3cd;
  color: var(--md-muted);
  background: #f8fafb;
}

#write code {
  padding: 0.12em 0.35em;
  border-radius: 4px;
  background: var(--md-code-background);
  font-family: "Cascadia Code", "SFMono-Regular", Consolas, monospace;
  font-size: 0.9em;
}

#write pre,
#write .md-fences {
  margin: 1.25em 0;
  padding: 1em 1.15em;
  overflow: auto;
  border: 1px solid #e4e8ec;
  border-radius: 7px;
  background: var(--md-code-background);
}

#write pre code {
  padding: 0;
  background: transparent;
}

#write .hljs-keyword,
#write .hljs-selector-tag,
#write .hljs-literal {
  color: #9a3412;
}

#write .hljs-string,
#write .hljs-attr {
  color: #166534;
}

#write .hljs-title,
#write .hljs-function {
  color: #1d4ed8;
}

#write .hljs-comment {
  color: #7c838a;
  font-style: italic;
}

#write table {
  width: 100%;
  margin: 1.3em 0;
  border-collapse: collapse;
}

#write th,
#write td {
  padding: 0.55em 0.75em;
  border: 1px solid var(--md-border);
  text-align: left;
}

#write th {
  background: #f4f6f8;
  font-weight: 650;
}

#write img,
#write svg {
  max-width: 100%;
  height: auto;
}

#write .contains-task-list {
  padding-left: 0.25em;
  list-style: none;
}

#write .md-task-list-item {
  list-style: none;
}

#write .task-list-item-checkbox {
  margin: 0 0.55em 0.2em 0;
  vertical-align: middle;
}

#write .footnotes {
  margin-top: 2.5em;
  padding-top: 1em;
  border-top: 1px solid var(--md-border);
  color: var(--md-muted);
  font-size: 0.9em;
}

#write .katex-display {
  margin: 1.4em 0;
  overflow-x: auto;
  overflow-y: hidden;
  text-align: center;
}

#write .mermaid {
  margin: 1.5em auto;
  text-align: center;
}