/* Brillouin strong coupling: the analysis's notation.
   Script 𝒢 (peak gain) and 𝒩 (thermal occupation) come from a two-glyph subset of STIX Two Math,
   added to the site's STIX Two Math family by unicode range. Renamed source quantities that the
   analysis sets in sans serif (the coupling 𝗀, the index 𝗇) use the interface face. */
@font-face { font-family: "STIX Two Math"; src: url("../../fonts/pages/brillouin-script.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; unicode-range: U+1D4A2, U+1D4A9; }
.sf { font-family: var(--font-ui); font-style: normal; font-weight: 500; }
.eq-block .sf { font-size: .94em; }