@font-feature-values InterVariable {
  @character-variant {
    cv01: 1;
    cv02: 2;
    cv03: 3;
    cv04: 4;
    cv05: 5;
    cv06: 6;
    cv07: 7;
    cv08: 8;
    cv09: 9;
    cv10: 10;
    cv11: 11;
    cv12: 12;
    cv13: 13;
    alt-1: 1; /* Alternate one */
    alt-3: 9; /* Flat-top three */
    open-4: 2; /* Open four */
    open-6: 3; /* Open six */
    open-9: 4; /* Open nine */
    lc-l-with-tail: 5; /* Lower-case L with tail */
    simplified-u: 6; /* Simplified u */
    alt-double-s: 7; /* Alternate German double s */
    uc-i-with-serif: 8; /* Upper-case i with serif */
    uc-g-with-spur: 10; /* Capital G with spur */
    single-story-a: 11; /* Single-story a */
    compact-lc-f: 12; /* Compact f */
    compact-lc-t: 13; /* Compact t */
  }

  @styleset {
    ss01: 1;
    ss02: 2;
    ss03: 3;
    ss04: 4;
    ss05: 5;
    ss06: 6;
    ss07: 7;
    ss08: 8;
    open-digits: 1; /* Open digits */
    disambiguation: 2; /* Disambiguation (with zero) */
    disambiguation-except-zero: 4; /* Disambiguation (no zero) */
    round-quotes-and-commas: 3; /* Round quotes & commas */
    square-punctuation: 7; /* Square punctuation */
    square-quotes: 8; /* Square quotes */
    circled-characters: 5; /* Circled characters */
    squared-characters: 6; /* Squared characters */
  }
}