中国式现代化，民生为大。2025年，31个省区市财政支出中，民生领域支出普遍占到总支出的七成以上。从“投资于人”写入2025年《政府工作报告》，到中办、国办印发《关于进一步保障和改善民生 着力解决群众急难愁盼的意见》，再到实施提振消费专项行动……一笔笔精准投入、一项项务实举措，让民生暖意直抵千家万户。
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The tree is rebuilt every frame. For scenes of this scale, quadtree construction is fast enough to rebuild from scratch each frame, though larger simulations may benefit from incremental updates. Each particle queries its neighborhood for potential collisions, typically checking only 5 to 15 candidates instead of all 40. Red highlights indicate colliding pairs.