本文旨在通过地方性的视角，探究国内大型平台下沉到地方之后引起的复杂变化以及在主体性日常实践中蕴含的本土现代化发展方向。在凉山盐源县，平台下沉是国家力量、平台商业扩张与地方社会文化要素之间彼此协调的客观后果。一方面，下沉平台给县城返乡青年提供了就业机会，而且县城骑手们通过与亲友之间的关联，形成了与系统共生的策略性行为。在此基础上，青年们形成了城乡两栖式地方生活节奏，在其中平衡工作、休闲与家庭，获取物质支持的同时也得到情感关怀。另一方面，平台的实际运转方式与县域时空格局相融合带来了交通管理、市场规则制定与执行等一系列的问题。而具有多身份背景的地方精英，可以利用自身地方社会资本协调政府、平台以及平台从业者之间的观念差异与利益需要。在平台与地方的互动过程中，这种在地方性的基础上协调多方权力关系的能动性策略实践帮助县城青年缓解工作与生活的异化状态，重构着县域的城市空间形态。这不仅帮助了平台与地方的适应，也帮助过去发展中处于劣势的地方性要素转化出新的发展方向。这种根植于地方性的主体力量中潜藏着中国式现代化发展的未来方向。

This paper aims to explore, through a local perspective, the complex changes triggered by the downward expansion of large domestic platforms into local areas, as well as the indigenous modernization development directions embedded in the subjective daily practices. In Liangshan's Yanyuan County, platform sinking is an objective consequence of coordination among state power, platform commercial expansion, and local socio-cultural elements. On one hand, platforms provide employment opportunities for returning youth in the county town, and county-based riders have formed symbiotic strategic behaviors with the system through their connections with relatives and friends. On this basis, the youth have developed an amphibious local lifestyle rhythm between urban and rural areas, balancing work, leisure, and family, gaining both material support and emotional care. On the other hand, the actual operation methods of platforms integrated with the county's spatiotemporal structure have brought about a series of issues such as traffic management, market rule formulation, and enforcement. Local elites with multi-identity backgrounds can leverage their local social capital to coordinate differences in perspectives and interests among the government, platforms, and platform practitioners. During the interaction between platforms and localities, this kind of agentic strategic practice—which coordinates multi-party power relations based on locality—helps county youth obtain less alienated work and life, while reconfiguring the county's urban spatial form. This not only aids the adaptation between platforms and localities but also helps transform previously disadvantaged local elements into new development directions. The author argues that this subjective force rooted in locality harbors the future direction of China-style modernization development.