.post-content .mermaid-diagram{margin:1.5rem 0;padding:1rem;overflow-x:auto;border:1px solid var(--border);border-radius:8px;background:var(--entry)}.post-content .mermaid-diagram svg{display:block;height:auto;margin:0 auto}.post-content .mermaid-source{white-space:pre}.post-content .mermaid-error{margin:.5rem 0 0;color:var(--secondary);font-size:.9rem}.post-content .katex-display{max-width:100%;overflow-x:auto;overflow-y:hidden;padding:.35rem 0}.post-content .katex{font-size:1.1em}.post-content .katex-display>.katex{white-space:nowrap}