/* 导入Noto Sans SC字体（Google Fonts提供的开源可商用中文字体） */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;500;600;700&display=swap');

/* 预加载字体，提高性能 */
@font-face {
    font-family: 'Noto Sans SC';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url(https://fonts.gstatic.com/s/notosanssc/v36/k3kXo84MPvpLmixcA63oeALhLIiP-Q-87KaAaR4.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+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD, U+4E00-9FFF, U+3400-4DBF, U+F900-FAFF, U+3000-303F, U+FF00-FFEF;
}

@font-face {
    font-family: 'Noto Sans SC';
    font-style: normal;
    font-weight: 500;
    font-display: swap;
    src: url(https://fonts.gstatic.com/s/notosanssc/v36/k3kIo84MPvpLmixcA63oeALh3nKYCARTr4avADjPedY.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+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD, U+4E00-9FFF, U+3400-4DBF, U+F900-FAFF, U+3000-303F, U+FF00-FFEF;
}

@font-face {
    font-family: 'Noto Sans SC';
    font-style: normal;
    font-weight: 600;
    font-display: swap;
    src: url(https://fonts.gstatic.com/s/notosanssc/v36/k3kIo84MPvpLmixcA63oeALh3nKYCARTr4YvADjPedY.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+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD, U+4E00-9FFF, U+3400-4DBF, U+F900-FAFF, U+3000-303F, U+FF00-FFEF;
}

@font-face {
    font-family: 'Noto Sans SC';
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: url(https://fonts.gstatic.com/s/notosanssc/v36/k3kIo84MPvpLmixcA63oeALh3nKYCARTr4c_ADjPedY.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+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD, U+4E00-9FFF, U+3400-4DBF, U+F900-FAFF, U+3000-303F, U+FF00-FFEF;
}