/* 很细的 */
@font-face {
    font-family: "HelveticaNeueW01-UltLt";
    src: url('fonts/HelveticaNeueW01-UltLt.ttf'),
        url('fonts/HelveticaNeueW01-UltLt.otf'),
        url('fonts/HelveticaNeueW01-UltLt.woff'),
        url('fonts/HelveticaNeueW01-UltLt.eot');
}

/* 很细的 */
@font-face {
    font-family: "HelveticaNeueLTStd-UltLt";
    src: url('fonts/HelveticaNeueLTStd-UltLt.ttf'),
        url('fonts/HelveticaNeueLTStd-UltLt.otf'),
        url('fonts/HelveticaNeueLTStd-UltLt.woff'),
        url('fonts/HelveticaNeueLTStd-UltLt.eot');
}

/* 常规 */
@font-face {
    font-family: "HelveticaNeueLTStd-Lt";
    src: url('fonts/HelveticaNeueLTStd-Lt.ttf'),
        url('fonts/HelveticaNeueLTStd-Lt.otf'),
        url('fonts/HelveticaNeueLTStd-Lt.woff'),
        url('fonts/HelveticaNeueLTStd-Lt.eot');
}

/* 一般细 */
@font-face {
    font-family: "HelveticaNeueLTStd-Th";
    src: url('fonts/HelveticaNeueLTStd-Th.ttf'),
        url('fonts/HelveticaNeueLTStd-Th.otf'),
        url('fonts/HelveticaNeueLTStd-Th.woff'),
        url('fonts/HelveticaNeueLTStd-Th.eot');
}