.ppt-figure{max-width:100%;margin:24px 0;padding:14px;border:1px solid var(--line);background:var(--surface)}
.ppt-figure img{display:block;width:100%;max-width:100%;max-height:520px;object-fit:contain;background:#f7f7f4;border-radius:3px;filter:invert(.92) hue-rotate(180deg)}
.light .ppt-figure img{filter:none}
.ppt-figure.ppt-figure-light img{filter:none}
.ppt-figure figcaption{padding:10px 3px 0;color:var(--muted);font-size:13px}
.ppt-figure figcaption small{display:block;margin-top:4px;opacity:.78}
.figure-pair{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:24px 0}
.figure-pair .ppt-figure{margin:0}
@media(max-width:900px){.figure-pair{grid-template-columns:1fr}}
@media(max-width:720px){.rule-grid{grid-template-columns:1fr}}
@media(max-width:720px){.ppt-figure{padding:10px}.ppt-figure img{max-height:none}}