header{position:relative}.markdown h2{font-size:1.5rem}.markdown h3{font-size:1.25rem}.markdown h4{font-size:1.125rem}.markdown h5{font-size:1.06rem}.markdown h6{font-size:1rem}.markdown pre{background:var(--bg-secondary);padding:16px;border-radius:8px;overflow-x:auto;border:1px solid var(--border)}.markdown pre,.markdown ul{margin:10px 0}.markdown .toc{float:left;padding:20px 50px 20px 40px;margin-right:40px;background:var(--bg-secondary);border-radius:8px;border:1px solid var(--border)}