克里斯汀 is formed through phonetic transliteration, where each character is chosen solely for its sound to approximate the English name "Christine" or "Kristen": 克 (kè) corresponds to "Chris", 里 (lǐ) to "ri", 斯 (sī) to "s", and 汀 (tīng) to "tine", creating a sequential sound-based representation.