From the 16th to the 18th century, Jesuit missionaries in China pioneered inter-cultural exchange by integrating cultural accommodation with groundbreaking linguistic research. By adopting Confucian scholarly practices and systematically studying the Chinese language, they developed innovative approaches to Chinese phonetics, grammar, lexicography, rhetoric, and teaching. Their linguistic achievements not only facilitated missionary work but also contributed to early modern sinology and cross-cultural communications. This paper examines the Jesuits’ dual strategy of cultural accommodation and linguistic research, demonstrating how their deep engagement with Chinese intellectual traditions enabled them to study the Chinese language successfully, to communicate with local elites smoothly, and to disseminate Christianity effectively. Through the combination of local philological traditions with Western linguistic techniques, they introduced new perspectives on the Chinese language, influencing both Western sinology and China’s linguistic development. Their translations of religious, scientific, and philosophical texts also played a key role in shaping Sino-Western intellectual exchanges. By analyzing the Jesuits’ linguistic activities and the strategies they employed in the process, this study highlights the Jesuits’ impact on Chinese linguistic scholarship, the transmission of Christianity, and their role in cross-cultural communication. Their work also exemplifies how language, culture, and religion can effectively collaborate in cross-cultural encounters, shaping historical narratives and fostering dialogue between civilizations.

Although urban streetscape visual esthetic quality (VAQ) assessment has progressed markedly, its findings are rarely operationalized in urban planning policy-making. The resulting discontinuity in the assessment–policy linkage is a critical impediment to streetscape VAQ enhancement. We propose an eye-tracking-enabled, end-to-end decision support framework that links evidence acquisition, intervention prioritization, design strategy formulation, and outcome feedback. Eye tracking is integrated to establish a three-dimensional assessment system spanning spatial, psychological, and physiological dimensions. Within this integrated system, we construct a three-level eye-tracking-based visual characteristics (ET-VC) framework across streetscape elements, formal characteristics, and public esthetic perception (PAP). Together, the three-dimensional system provides a theoretical basis for acquiring the multi-modal data required for VAQ enhancement. Building on this integrated assessment, we embed scenario planning theory to construct a planning facing decision model with PAP as the core outcome. The model combines importance-performance analysis (IPA) with the coupling coordination degree model (CCDM) to guide resource allocation decisions and intervention prioritization, and further uses eye-tracking evidence to support the development of refined, actionable enhancement strategies. A case study in Wudadao validates the framework’s robustness and feasibility. The ET-VC results provide additional evidence for interpreting esthetic perception: (1) ET-VC indicators differ significantly across streetscape elements, and “being viewed more” does not necessarily correspond to higher esthetic ratings; (2) four groups of key formal characteristic indicators—color configuration, naturalness, historicity and planning/regulatory control, and visual scale—systematically reshape fixation onset and maintenance patterns; and (3) PAP appears to involve partially nonlinear relationships between material landscape features and additional top-down influences (e.g., historical narratives and individual experience), rather than being fully explained by linear associations alone. Overall, this study provides both a theoretical basis and an applied demonstration for evidence-based streetscape VAQ enhancement.