网络时代，多元化连接与高频度互动在带来各种紧密互动模式的同时，也产生了“圈层化”效果。长久以来，二次元文化以自身独特的语言风格和视觉符号来作为区别于主流文化的边界特征，而二次元文化的爱好者们，也借用这样的文化边界来建构起一个属于自身的亚文化圈子。与此同时，媒介技术的发展与日常生活的媒介化进一步加速了二次元文化的输出和扩张，在这个过程中，亚文化也开始频繁的与主流文化进行“对话”。二者之间的文化融合，不是一方向另一方的单向传播，而是在社会、政治、经济、媒体等多方面需求的推动下，形成一个赋予原有文化生命力和发展力的有层次的双向互动过程。

本文以典型的二次元文化社区哔哩哔哩视频弹幕网为研究对象，探究其在“破圈”的过程中，二次元文化、青年亚文化与主流文化融合的动因、表征及实践。消费主义语境下二次元文化所展现出的巨大商业价值以及商业资本的产业赋能，也进一步加速了二次元文化的圈层突破；在媒介“融合”的趋势下，主流媒体也在对自身传播模式、传播语态的转变进行积极探索，谋求与青年群体的有效对话。这一过程中，B站内部多元的文化生态交融，在其所建构的媒介空间内多元符号的交互构建起了一场意义共享的文化“仪式”，营造共同场域与强化共同信仰，实现意义的再生产与传播。而在融合的过程中，新传播环境下的范式转换也促使着新的传播形态浮现。同时，“融合”作为一种文化变迁，也带来了用户与媒体关系的思维方式转换，促进了不同代际之间的沟通。但亚文化与主流文化的融合也并非是一帆风顺的，如何平衡好大众与小众，把握好融合的边界与尺度，也都成为挑战和值得我们思考的问题。

In the Internet age, diversified connections and high-frequency interactions have brought about various modes of close interaction, and at the same time, they have also produced a "circularization" effect. For a long time, the two-dimensional culture has its own unique language style and visual symbols as the boundary features that distinguish it from the mainstream culture, and the fans of the two-dimensional culture have also borrowed such cultural boundaries to build a subculture of their own. . At the same time, the development of media technology and the mediation of daily life have further accelerated the export and expansion of the two-dimensional culture. During this process, subcultures have also begun to frequently "dialogue" with mainstream cultures. The cultural fusion between the two is not a one-way communication from one to the other, but is driven by social, political, economic, media and other needs to form a layered culture that gives vitality and development to the original culture. Two-way interactive process.

This paper takes the typical two-dimensional cultural community Bilibili Video Danmu as the research object, and explores the motivation, representation and practice of the integration of two-dimensional culture, youth subculture and mainstream culture in the process of "breaking the circle". In the context of consumerism, the huge commercial value of the secondary culture and the industrial empowerment of commercial capital have further accelerated the breakthrough of the secondary culture; under the trend of media "integration", the mainstream media is also Actively explore the transformation of communication mode and communication voice, and seek effective dialogue with youth groups. In this process, the diverse cultural ecology of station B blends, and the interaction of multiple symbols in the media space it constructs builds a cultural "ceremony" of shared meaning, creating a common field and strengthening common beliefs, realizing meaning reproduction and dissemination. In the process of integration, the paradigm shift in the new communication environment also prompts the emergence of new communication forms. At the same time, as a cultural change, "fusion" has also brought about a shift in the way of thinking about the relationship between users and media, and promoted communication between different generations. However, the integration of subculture and mainstream culture is not smooth sailing. How to balance the public and the small, and grasp the boundaries and scales of integration have also become challenges and issues worthy of our consideration.