// 5x7 位图字体 (列优先, LSB 在上)
static const uint8_t BLOCK_FONT[96][5] = {
    /*   */ {0x00, 0x00, 0x00, 0x00, 0x00},
    /* ! */ {0x00, 0x00, 0xBE, 0x00, 0x00},
    /* " */ {0x00, 0x36, 0x36, 0x00, 0x00},
    /* # */ {0x00, 0x00, 0x00, 0x00, 0x00},
    /* $ */ {0x00, 0x00, 0x00, 0x00, 0x00},
    /* % */ {0x00, 0x00, 0x00, 0x00, 0x00},
    /* & */ {0x00, 0x00, 0x00, 0x00, 0x00},
    /* ' */ {0x00, 0x06, 0x06, 0x00, 0x00},
    /* ( */ {0x3C, 0x42, 0x81, 0x81, 0x00},
    /* ) */ {0x00, 0x81, 0x81, 0x42, 0x3C},
    /* * */ {0x22, 0x14, 0x08, 0x14, 0x22},
    /* + */ {0x08, 0x08, 0x7F, 0x08, 0x08},
    /* , */ {0x00, 0xA0, 0x60, 0x00, 0x00},
    /* - */ {0x08, 0x08, 0x08, 0x08, 0x08},
    /* . */ {0x00, 0x60, 0x60, 0x00, 0x00},
    /* / */ {0x80, 0x40, 0x20, 0x10, 0x08},
    /* 0 */ {0x7E, 0x81, 0x81, 0x81, 0x7E},
    /* 1 */ {0x00, 0x82, 0xFF, 0x80, 0x00},
    /* 2 */ {0xC2, 0xA1, 0x91, 0x89, 0x86},
    /* 3 */ {0x42, 0x81, 0x89, 0x89, 0x76},
    /* 4 */ {0x18, 0x28, 0x48, 0xFF, 0x08},
    /* 5 */ {0x4F, 0x89, 0x89, 0x89, 0x71},
    /* 6 */ {0x7E, 0x89, 0x89, 0x89, 0x72},
    /* 7 */ {0x01, 0xC1, 0x31, 0x0D, 0x03},
    /* 8 */ {0x76, 0x89, 0x89, 0x89, 0x76},
    /* 9 */ {0x46, 0x89, 0x89, 0x89, 0x7E},
    /* : */ {0x00, 0x66, 0x66, 0x00, 0x00},
    /* ; */ {0x00, 0xB6, 0x66, 0x00, 0x00},
    /* < */ {0x10, 0x28, 0x44, 0x82, 0x00},
    /* = */ {0x28, 0x28, 0x28, 0x28, 0x28},
    /* > */ {0x00, 0x82, 0x44, 0x28, 0x10},
    /* ? */ {0x02, 0x01, 0x51, 0x09, 0x06},
    /* @ */ {0x00, 0x00, 0x00, 0x00, 0x00},
    /* A */ {0x7E, 0x09, 0x09, 0x09, 0x7E},
    /* B */ {0xFF, 0x89, 0x89, 0x89, 0x76},
    /* C */ {0x7E, 0x81, 0x81, 0x81, 0x42},
    /* D */ {0xFF, 0x81, 0x81, 0x42, 0x3C},
    /* E */ {0xFF, 0x89, 0x89, 0x89, 0x81},
    /* F */ {0xFF, 0x09, 0x09, 0x09, 0x01},
    /* G */ {0x7E, 0x81, 0x89, 0x89, 0x72},
    /* H */ {0xFF, 0x08, 0x08, 0x08, 0xFF},
    /* I */ {0x00, 0x81, 0xFF, 0x81, 0x00},
    /* J */ {0x40, 0x80, 0x80, 0x80, 0x7F},
    /* K */ {0xFF, 0x08, 0x14, 0x22, 0x41},
    /* L */ {0xFF, 0x80, 0x80, 0x80, 0x80},
    /* M */ {0xFF, 0x02, 0x0C, 0x02, 0xFF},
    /* N */ {0xFF, 0x04, 0x08, 0x10, 0xFF},
    /* O */ {0x7E, 0x81, 0x81, 0x81, 0x7E},
    /* P */ {0xFF, 0x09, 0x09, 0x09, 0x06},
    /* Q */ {0x7E, 0x81, 0xA1, 0x41, 0xBE},
    /* R */ {0xFF, 0x09, 0x19, 0x29, 0x46},
    /* S */ {0x46, 0x89, 0x89, 0x89, 0x72},
    /* T */ {0x01, 0x01, 0xFF, 0x01, 0x01},
    /* U */ {0x7F, 0x80, 0x80, 0x80, 0x7F},
    /* V */ {0x3F, 0x40, 0x80, 0x40, 0x3F},
    /* W */ {0x7F, 0x80, 0x70, 0x80, 0x7F},
    /* X */ {0xC3, 0x24, 0x18, 0x24, 0xC3},
    /* Y */ {0x03, 0x04, 0xF8, 0x04, 0x03},
    /* Z */ {0xC1, 0xA1, 0x91, 0x89, 0x87},
    /* [ */ {0x7E, 0x82, 0x82, 0x82, 0x00},
    /* \ */ {0x08, 0x10, 0x20, 0x40, 0x80},
    /* ] */ {0x00, 0x82, 0x82, 0x82, 0x7E},
    /* ^ */ {0x00, 0x00, 0x00, 0x00, 0x00},
    /* _ */ {0x80, 0x80, 0x80, 0x80, 0x80},
    /* ` */ {0x00, 0x00, 0x00, 0x00, 0x00},
    /* a */ {0x20, 0x54, 0x54, 0x54, 0x78},
    /* b */ {0xFF, 0x48, 0x48, 0x48, 0x30},
    /* c */ {0x38, 0x44, 0x44, 0x44, 0x44},
    /* d */ {0x30, 0x48, 0x48, 0x48, 0xFF},
    /* e */ {0x38, 0x54, 0x54, 0x54, 0x58},
    /* f */ {0x08, 0x7E, 0x09, 0x01, 0x02},
    /* g */ {0x08, 0x54, 0x54, 0x54, 0x3C},
    /* h */ {0xFF, 0x08, 0x08, 0x08, 0xF0},
    /* i */ {0x00, 0x48, 0x7A, 0x40, 0x00},
    /* j */ {0x20, 0x40, 0x40, 0x3A, 0x00},
    /* k */ {0xFF, 0x10, 0x28, 0x44, 0x82},
    /* l */ {0x00, 0x41, 0xFF, 0x40, 0x00},
    /* m */ {0x7C, 0x04, 0x78, 0x04, 0x78},
    /* n */ {0x7C, 0x04, 0x04, 0x04, 0xF8},
    /* o */ {0x38, 0x44, 0x44, 0x44, 0x38},
    /* p */ {0xFC, 0x24, 0x24, 0x24, 0x18},
    /* q */ {0x18, 0x24, 0x24, 0x24, 0xFC},
    /* r */ {0x7C, 0x08, 0x04, 0x04, 0x08},
    /* s */ {0x48, 0x54, 0x54, 0x54, 0x24},
    /* t */ {0x04, 0x3F, 0x44, 0x40, 0x20},
    /* u */ {0x3C, 0x40, 0x40, 0x40, 0x3C},
    /* v */ {0x1C, 0x20, 0x40, 0x20, 0x1C},
    /* w */ {0x3C, 0x40, 0x30, 0x40, 0x3C},
    /* x */ {0x44, 0x28, 0x10, 0x28, 0x44},
    /* y */ {0x0C, 0x50, 0x50, 0x50, 0x3C},
    /* z */ {0x44, 0x64, 0x54, 0x4C, 0x44},
    /* { */ {0x18, 0x24, 0x42, 0x24, 0x18},
    /* | */ {0x00, 0x00, 0x00, 0x00, 0x00},
    /* } */ {0x18, 0x24, 0x42, 0x24, 0x18},
    /* ~ */ {0x00, 0x00, 0x00, 0x00, 0x00},
    /* \x7f */ {0x00, 0x00, 0x00, 0x00, 0x00},
};