@font-face {
    font-family: 'D-DINPro';
    src: url('../font/D-DIN-PRO-900-Heavy.otf') format('opentype');
    font-weight: 900;
    font-style: normal;
}
@font-face {
    font-family: 'D-DINPro';
    src: url('../font/D-DIN-PRO-800-ExtraBold.otf') format('opentype');
    font-weight: 800;
    font-style: normal;
}
@font-face {
    font-family: 'D-DINPro';
    src: url('../font/D-DIN-PRO-700-Bold.otf') format('opentype');
    font-weight: 700;
    font-style: normal;
}
@font-face {
    font-family: 'D-DINPro';
    src: url('../font/D-DIN-PRO-600-SemiBold.otf') format('opentype');
    font-weight: 600;
    font-style: normal;
}
@font-face {
    font-family: 'D-DINPro';
    src: url('../font/D-DIN-PRO-500-Medium.otf') format('opentype');
    font-weight: 500;
    font-style: normal;
}
@font-face {
    font-family: 'D-DINPro';
    src: url('../font/D-DIN-PRO-400-Regular.otf') format('opentype');
    font-weight: 400;
    font-style: normal;
}
/* 其他字重（700、600）同理 */