/* 自托管 Noto Serif SC / Source Sans 3（SIL OFL）。不依赖 Google Fonts，国内随站点加载。 */
@font-face {
    font-family: "Source Sans 3";
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: local("Source Sans 3"), local("SourceSans3-Regular"),
         url("fonts/source-sans-3-latin-400.woff2") format("woff2");
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
    font-family: "Source Sans 3";
    font-style: italic;
    font-weight: 400;
    font-display: swap;
    src: local("Source Sans 3 Italic"), local("SourceSans3-Italic"),
         url("fonts/source-sans-3-latin-400-italic.woff2") format("woff2");
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
    font-family: "Source Sans 3";
    font-style: normal;
    font-weight: 600;
    font-display: swap;
    src: local("Source Sans 3 SemiBold"), local("SourceSans3-SemiBold"),
         url("fonts/source-sans-3-latin-600.woff2") format("woff2");
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
    font-family: "Noto Serif SC";
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: local("Noto Serif SC"), local("Source Han Serif SC"),
         url("fonts/noto-serif-sc-latin-400.woff2") format("woff2");
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
    font-family: "Noto Serif SC";
    font-style: normal;
    font-weight: 500;
    font-display: swap;
    src: local("Noto Serif SC Medium"), local("Source Han Serif SC Medium"),
         url("fonts/noto-serif-sc-latin-500.woff2") format("woff2");
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
    font-family: "Noto Serif SC";
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: local("Noto Serif SC Bold"), local("Source Han Serif SC Bold"),
         url("fonts/noto-serif-sc-latin-700.woff2") format("woff2");
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
    font-family: "Noto Serif SC";
    font-style: normal;
    font-weight: 400 700;
    font-display: swap;
    src: local("Noto Serif SC"), local("Source Han Serif SC"),
         url("fonts/noto-serif-sc-cjk-400.woff2") format("woff2");
    unicode-range: U+3000-303F, U+3040-309F, U+30A0-30FF, U+3100-312F, U+31A0-31BF, U+3400-4DBF, U+4E00-9FFF, U+F900-FAFF, U+FF00-FFEF;
}