body {
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
    padding: 0.5rem;
    max-width: 900px;
    margin: auto;
    background:#f5f5f6;
}
.article { border: 1px solid #e8e8ea; padding: 0.25rem 1rem; border-radius: 10px; background: white; }
.latex-block { margin: 12px 0; display:flex; gap:12px; align-items:center; }
.latex-html { flex: 0 0 auto; }
.latex-img img, .latex-img-inline { max-height: 2.5em; vertical-align: middle; }
pre { background:#f7f7f7; padding:10px; overflow:auto; border-radius:6px; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, "Roboto Mono", "Courier New", monospace; }