A pair like Cyrillic ԁ (U+0501) and Latin d scores 0.781 mean SSIM across 18 fonts. That sounds moderate. But it is pixel-identical (SSIM 1.000) in eight of those fonts: Arial, Menlo, Cochin, Tahoma, Charter, Georgia, Baskerville, and Verdana. An attacker needs only one font to succeed. The exploitable risk is the max, not the mean.
3705 fills a role sometimes called a "front-end processor," doing the grunt work
，这一点在夫子中也有详细论述
窃取或者以其他方法非法获取个人信息的，依照前款的规定处罚。
// 3. 从后向前遍历，稳定排序的关键！