/* 字体定义 */
@font-face {
    font-family: 'Orbitron';
    src: url('https://fonts.gstatic.com/s/orbitron/v25/yMJMMIlzdpvBhQQL_SC3X9yhF25-T1nyGy6BoWgz.woff2') format('woff2');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
    font-family: 'Orbitron';
    src: url('https://fonts.gstatic.com/s/orbitron/v25/yMJMMIlzdpvBhQQL_SC3X9yhF25-T1nyGy6BoWgz.woff2') format('woff2');
    font-weight: 500;
    font-style: normal;
    font-display: swap;
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
    font-family: 'Orbitron';
    src: url('https://fonts.gstatic.com/s/orbitron/v25/yMJMMIlzdpvBhQQL_SC3X9yhF25-T1nyGy6BoWgz.woff2') format('woff2');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}