Each chéngyǔ is a tiny capsule of classical literature condensed into four characters — made findable by sound and shape, readable across three scripts, and traversable by the semantic kinships that 384-d embeddings reveal.
The hero detail page — trilingual names, pronunciation, rich meaning, origin, examples, and a cosine-similarity “more like this” rail.
A–Z pinyin + 注音 zhuyin directories — click a letter, see its entries.
The visually-rhythmic minority — AABB 疊字, ABAC, ABCB… ~1,800 idioms by shape.
Faceted browse on the 7 semantic-tag families — animals, war, excess, moral lessons.
The literary deep-dive — narrative story, classical text with glosses, ctext.org links.
Spaced-repetition (FSRS). Front: idiom + pinyin. Back: meaning + example.
Guess-the-idiom from a 謎語 or 歇後語. Antonyms and synonyms double as tight distractors.
A force-directed map of semantic neighbours — drift idiom to idiom through embedding space.