Okay. Thank you, Yuhua. Hello, everyone. Welcome to Sunlands' First Quarter and Full Year 2025 Earnings Conference Call. Prior to commencing, I would like to commencing, I would like to kindly remind all attendees that the financial information referenced in this release is presented on a continuing operation basis and all figures are denominated in RMB unless explicitly specified otherwise. We closed the fourth quarter with net revenue of RMB 470.2 million and net income of RMB 38.4 million, representing our 19th consecutive quarter of profitability. For the full year, net revenue reached RMB 2.02 billion, up 1.5% year-over-year, while net income increased 6.9% to RMB 365.6 million and the gross margin expanded by 2.9 percentage points to 86.9%. These results reflect the operating priority we set at the beginning of the year, precision over scale. We made deliberate choices throughout 2025, tightening customer acquisition, strengthening delivery consistence and improving organizational efficiency. The margin and income outcomes you see are a direct product of those choices. Let me now turn to the performance of our major cost categories. In 2025, degree and diploma-oriented postsecondary programs contributed 13.5% of full year net revenues and 18.2% in the fourth quarter. The shift in mix was an intentional strategic choice. Demand in this segment remains stable, but we have been intentionally moderating investment and reallocating resources towards areas with greater long-term potential. We will continue to stay close to leaner demand and adjust with discipline as market conditions evolve. Interest, professional skills and certification preparation programs together contributed 73.9% of full year net revenue and 66.8% in the fourth quarter. Over the past several years, we have invested steadily in product breadth, instructional design and community infrastructure across those offerings. Within this segment, as adult learning needs continue to evolve, our view remains clear. Based on our assessment of the market, interest-based learning continue to be a primary strategic direction for us going forward. As we have built out this strategy, senior learners have remained at the core of that opportunity. Our focus here is a long-term and deliberate and the progress we are seeing today is a continuation of the work we started in 2020 when the category was still in its very early stages and largely overlooked. 5 years later, the structural tailwinds are more visible. China's senior population continue to expand and the market for senior interest education remains in the early stage of development, which, in our view, points to a long runway for growth. According to Frost & Sullivan, the user base for senior interest education in China is projected to reach approximately RMB 86 million in 2025 and exceed RMB 100 million by 2027. In the fourth quarter, in addition to continue to enrich our portfolio of online courses for senior learners, we also placed a greater emphasis on offline activities. Further extending the learning experiences beyond the classroom. During the quarter, we organized multiple category and planting exhibition for our learners, including one in collaboration with rumba, one of China's most established cultural institution. Our senior students also participated in the recording of a Spring Festival Gala program broadcast by China Education Television in January. These activities are an important part of the learning journey for senior learners, creating opportunity for expression, social connection and a stronger sense of participation. Looking ahead, we will continue to scale this business with patience, discipline and a clear respect for delivery capacity -- for this cohort, we look beyond a single repurchase cycle and focus more on brand loyalty and lifetime participation, which is how long learners they are active with us and how constantly they return over time. Interest-based learning is a strong entry point for us. It allows us to build a closer relationship with learners through repeatedly participation and community engagement. And it opens up more opportunities over time to serve them across additional learning needs and life stages. The past year also marked a meaningful step forward in the practical application of AI in adult education. The emergence of large language model has explained what is operationally possible, particularly in personalized instruction and adaptive content delivery at scale. As the technology matures, AI is becoming a real productive driver across the online education value chain from curriculum design and delivery models to the student experience. And we intend to advance in deliberate and disciplined way. Reflecting that commitment, fourth quarter R&D expenses increased 71.3% year-over-year, moving intentionally in the opposite direction of selling expenses as we invest in the next layer of capability. As we enter 2026, the question is no longer whether we can sustain profitability. The more important question is whether we can continue to grow while preserving the operation foundation that made that profitability possible. Looking ahead, we remain focused on capturing the AI opportunity by embedding it across more parts of the business and turning source of growth and operation momentum while results with speed and discipline. As always, we will make the results speak for themselves. That concludes Tongbo's prepared remarks. I will turn the call over to our Financial Director, to run through our financials.