/* 思源宋体子集（fonts.py 生成，勿手改）。family 用 DL Serif，避免和本机装的同名字体混用 */
@font-face { font-family: "DL Serif"; font-weight: 400; font-style: normal; font-display: swap; src: url("dl-serif-Regular.woff2") format("woff2"); }
@font-face { font-family: "DL Serif"; font-weight: 700; font-style: normal; font-display: swap; src: url("dl-serif-Bold.woff2") format("woff2"); }
@font-face { font-family: "DL Serif"; font-weight: 900; font-style: normal; font-display: swap; src: url("dl-serif-Heavy.woff2") format("woff2"); }
:root { --font-serif: "DL Serif", "Source Han Serif SC", "Noto Serif SC", "Songti SC", STSong, serif; }