export declare const UI_FONT_FAMILY = "'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, 'Noto Sans CJK SC', sans-serif";
export declare const UI_FONT_SIZE_BASE = "13px";
export declare const UI_EL_SIZE: "small";
export declare const UI_FONT_OPTIONS: readonly [{
    readonly label: "宋体";
    readonly value: "SimSun, serif";
}, {
    readonly label: "楷体";
    readonly value: "KaiTi, serif";
}, {
    readonly label: "仿宋";
    readonly value: "FangSong, serif";
}, {
    readonly label: "黑体";
    readonly value: "SimHei, sans-serif";
}, {
    readonly label: "微软雅黑";
    readonly value: "Microsoft YaHei, sans-serif";
}, {
    readonly label: "微软正黑体";
    readonly value: "Microsoft JhengHei, sans-serif";
}, {
    readonly label: "华文新魏";
    readonly value: "STXinwei, serif";
}, {
    readonly label: "思源黑体";
    readonly value: "Source Han Sans CN, sans-serif";
}, {
    readonly label: "思源宋体";
    readonly value: "Source Han Serif CN, serif";
}, {
    readonly label: "Arial";
    readonly value: "Arial, sans-serif";
}, {
    readonly label: "Times New Roman";
    readonly value: "Times New Roman, serif";
}, {
    readonly label: "Segoe UI";
    readonly value: "Segoe UI, sans-serif";
}, {
    readonly label: "Courier New";
    readonly value: "Courier New, monospace";
}];
export declare const UI_SIZE_OPTIONS: readonly [{
    readonly label: "初号";
    readonly value: 42;
}, {
    readonly label: "小初";
    readonly value: 36;
}, {
    readonly label: "一号";
    readonly value: 26;
}, {
    readonly label: "小一";
    readonly value: 24;
}, {
    readonly label: "二号";
    readonly value: 22;
}, {
    readonly label: "小二";
    readonly value: 18;
}, {
    readonly label: "三号";
    readonly value: 16;
}, {
    readonly label: "小三";
    readonly value: 15;
}, {
    readonly label: "四号";
    readonly value: 14;
}, {
    readonly label: "小四";
    readonly value: 12;
}, {
    readonly label: "五号";
    readonly value: 10.5;
}, {
    readonly label: "小五";
    readonly value: 9;
}, {
    readonly label: "六号";
    readonly value: 7.5;
}, {
    readonly label: "小六";
    readonly value: 6.5;
}, {
    readonly label: "七号";
    readonly value: 5.5;
}, {
    readonly label: "八号";
    readonly value: 5;
}, {
    readonly label: "5";
    readonly value: 5;
}, {
    readonly label: "5.5";
    readonly value: 5.5;
}, {
    readonly label: "6";
    readonly value: 6;
}, {
    readonly label: "6.5";
    readonly value: 6.5;
}, {
    readonly label: "7";
    readonly value: 7;
}, {
    readonly label: "7.5";
    readonly value: 7.5;
}, {
    readonly label: "8";
    readonly value: 8;
}, {
    readonly label: "9";
    readonly value: 9;
}, {
    readonly label: "10";
    readonly value: 10;
}, {
    readonly label: "10.5";
    readonly value: 10.5;
}, {
    readonly label: "11";
    readonly value: 11;
}, {
    readonly label: "12";
    readonly value: 12;
}, {
    readonly label: "14";
    readonly value: 14;
}, {
    readonly label: "16";
    readonly value: 16;
}, {
    readonly label: "18";
    readonly value: 18;
}, {
    readonly label: "20";
    readonly value: 20;
}, {
    readonly label: "22";
    readonly value: 22;
}, {
    readonly label: "24";
    readonly value: 24;
}, {
    readonly label: "26";
    readonly value: 26;
}, {
    readonly label: "28";
    readonly value: 28;
}, {
    readonly label: "36";
    readonly value: 36;
}, {
    readonly label: "48";
    readonly value: 48;
}, {
    readonly label: "72";
    readonly value: 72;
}];
/** 磅 → 像素（96dpi：1pt = 96/72 px） */
export declare function ptToPx(pt: number): number;
/** 像素 → 磅（四舍五入到 0.5pt） */
export declare function pxToPt(px: number): number;
export declare const applyUiConstants: () => void;
