/* 本地字体声明 — 替代 Google Fonts，消除外部依赖 */
@font-face{font-family:'Instrument Serif';font-style:normal;font-weight:400;src:url('InstrumentSerif-Regular.woff2') format('woff2');font-display:swap}
@font-face{font-family:'Instrument Serif';font-style:italic;font-weight:400;src:url('InstrumentSerif-Italic.woff2') format('woff2');font-display:swap}
@font-face{font-family:'Manrope';font-style:normal;font-weight:300 700;src:url('Manrope-Variable.woff2') format('woff2');font-display:swap}
@font-face{font-family:'JetBrains Mono';font-style:normal;font-weight:400 500;src:url('JetBrainsMono-Variable.woff2') format('woff2');font-display:swap}