Thank you, Yolanda. Hello, everyone, and thank you for joining Zhihu's fourth quarter and full year 2025 earnings call. I am Victor Zhou, and I'm pleased to deliver today's opening remarks on behalf of Mr. Zhou Yuan, Founder, Chairman and CEO. In 2025, we achieved our first ever full year non-GAAP profit. This historic milestone validates our strategic transformation and underscores the structural durability of our operational leverage. Full year 2025, adjusted net income reached RMB 37.9 million, on a substantial turnaround from the adjusted net loss of RMB 96.3 million in 2024. Our community engagement continues to thrive. In Q4, average daily time spent per user increased to over 41 minutes on the platform. Our ecosystem of trusted creators remains vibrant, consistently delivering authentic and high-quality content across diverse fields. At the same time, we accelerated AI integration within our community. The synergistic evolution of our high-quality content times the expert network times AI capabilities continuously strengthened Zhihu's competitive mode in the AI era. In 2025, we successfully optimized our business structure. With a healthier commercial ecosystem, total revenue trend improved meaningfully in the fourth quarter, driven by a double-digit sequential increase in marketing services. Entering 2026, amid the surging AI adoption, we are leveraging Zhihu's unique advantages to scale AI-driven commercialization, including rapidly building industry-leading export data solutions and deploying AI productivity tools to accelerate IP monetization of our Yan'an Stories franchise. These initiatives will unlock new commercial opportunities for Zhihu. These efforts are anchored by a robust self-sustaining ecosystem. The powerful synergies between high-quality content, our expert network and expanding AI capabilities have created a positive feedback loop, driving heightened community, activity and interaction. In the fourth quarter, our data engagement metrics strengthened significantly. Average daily time spent per user increased sharply both year-over-year and sequentially to over 41 minutes. Substantial year-over-year growth in positive user interactions also drove notable improvements in both short- and long-term new user intention. High-quality content on our platform continues to surge. In Q4, daily creation of high-quality content rose by over 20% year-over-year, contributing to over 31% growth for the full year. Notably, professional AI-related content increased by over 30% year-over-year. As the global AI landscape has shifted from capability races to architectural innovation and system integration, Zhihu remains a leading forum for prominent researchers and frontline engineers to share insights, unpack complex topics and debate key issues. At the vanguard of the AI revolution, our community hosted extensive high-level discussions on key topics such as DeepSeek's Engram architecture, Qwen's new RIF's winning mechanisms, and the continuous iterations of Kimi and Zhipu. The conversation has moved from stronger models to effective system deployment, emphasizing tiered agent architectures and workflow redesign in products like Open Cloud and Cloud Co-Work. The debut of Unitree Robots at the Spring Festival Gala, together with Tesla and the figures progress towards a mass-producing humanoid robots have filled a critical analysis of embodied AI road maps as founders and the employees from leading AI enterprises personally engaged on Zhihu to answer questions and address concerns. Our platform remains attractive space where AI innovations are first explained, validated and responsibly disseminated. We continue to leverage AI to upgrade our community governance and content mechanism. By replacing many operations with algorithm-driven automated workflows, we enhanced community governance ,efficiency and precision. We introduced new metrics for trustworthy contents recognition and promotion ,while integrating user feedback into our evaluation framework. These measures effectively reduce system noise, dynamically suppressing low-quality content and elevating the overall user experience. Professional creators remain the backbone of Zhihu's expert network. In the fourth quarter, daily active high-tier creators grew by double digit year-over-year. A number of verified honored creators rose by nearly 30% as we continue to strengthen incentives for top-tier creators while supporting their efforts to expand industry influence. Our Zhihu 2025 annual review highlighted exceptionally robust high-tier creator engagement. In AI and technology, leading AI companies, including DeepSeek, Moonshot, Tongyi Qianwen, ByteDance Seed, Zhipu and StepFun actively engaged on our platform through their official accounts. Creators with frontline industry and R&D backgrounds consistently shared cutting-edge insights on our platform, contributing to major industry discussions. For the full year, AI-focused creators grew by approximately 16%. In fundamental sciences such as astronomy and chemistry, high-profile creators actively joined our flagship online and offline science programs. Their authoritative content sparked a widespread discussion beyond our community, driving higher search interest for related topics. On the product side, Ideas remains the primary channel for high-frequency knowledge sharing by professional creators, while Circle facilitates engagement around common interest. For the full year, average daily content volume on Ideas grew 73.5%, and the average daily interactions doubled. This momentum persisted in the fourth quarter with double-digit sequential growth across both metrics. We also increased support for mid-tier creators during the quarter, fostering a dynamic growth-oriented ecosystem. Leveraging AI agents, we significantly improved our efficiency in identifying and nurturing talent. In Circles AI-powered proms and standardized tools lowered creation variants and enhanced content distribution. As a result, average daily content creation in Circles surged over 100% sequentially with daily views up 72%. Beyond the AI-driven efficiency gains in content operations, creator support and ecosystem management, Q4 also saw accelerated advances in our foundational AI capabilities enhancing experiences for both creators and the users. In search, creation and consumption, we continue to deepen the integration of AI into the Zhihu community experience. In search, we completed an AI upgrade to our integrated search in December, introducing cross topic content aggregation and hot trend summarization to create a new entry point for high-quality content discovery. We also tailored the answer formats to different query types, which drove a double-digit increase in click-through rates for our AI direct answer cards and meaningfully increased average AI search interactions per user through more multi-turn conversations. In creation, AI is increasingly becoming a practical tool for creators on Zhihu. Since the fourth quarter, we have rolled out features such as content publishing and one-click enhancement powered by intelligent editing, automated formatting and image pairing capabilities. These tools lower the barrier to creation, improve readability and distribution efficiency and help creators turn ideas into shareable content more efficiently. We are also introducing multimodal capabilities such as AI-generated illustrations and image summarization to make long-form content more visually engaging and improve user conversion in the feed. In consumption and circulation, AI is helping Zhihu content transcend traditional community boundaries through external ecosystem partnerships, we are extending our content capabilities into more intelligent assistant scenarios. Within the community users are beginning to use AI in common thrives for fact checking and professional explanation, which supports more authentic interaction and follow-up discussions. Meanwhile, our AI reading panel on PC has improved the efficiency of long-form reading through one-click summarization and terminology explanation and is beginning to generate more valuable interest signals for future recommendation and monetization. Now turning to commercialization. Our efforts to optimize our commercial structure have yielded notable results. With a healthier business ecosystem, total revenue has entered a recovery phase, reaching RMB 643.5 million in the fourth quarter as the pace of sequential decline continued to narrow. This shows a clear top line recovery trajectory. At the same time, we are exploring new scalable AI-powered monetization avenues with an unwavering focus on long-term value and operational excellence. Let's take a closer look at our performance by segment. In the fourth quarter, marketing services revenue reached RMB 234.8 million, up 24% sequentially as our adjustment cycle bottomed out. Disciplined execution in optimizing client mix and upgrading commercial products capitalizes momentum, strengthening our appeal to high-value clients. We elevated the overall client quality, deepened industry penetration and accelerated new customer acquisition. In the fourth quarter, ARPU rose significantly among clients in high-value verticals such as technology and e-commerce. We also reached the new segments in sectors such as automotive and health care. In December, we hosted the Electric Club New Knowledge Technology Conference, which brought together automotive engineers, autonomous driving specialists and leading tech experts from the Zhihu community to explore NEV safety and intelligent upgrades. The event drove 140% year-over-year increase in participating clients enabling industry leaders like BYD, Mitsubishi and Voyah to articulate their technological strength and the safety value through targeted engagement and build trusted content assets. On commercial product upgrades, we leveraged our trusted content and expert network to expand the community-driven monetization and amplify the commercial value of our key IPs such as Zhihu Science Season and Zhihu Reviewers Jewelry. Revenue from IP-related projects increased 21% year-over-year, supported by deeper brand collaborations across our IP portfolio. At the same time, our Idea Plus solution gained strong momentum during the quarter. By offering a lightweight precisely targeted format, Idea Plus extended our native advertising capabilities into short-form content, significantly shortening the path from discovery to purchase, capitalizing on 106% year-over-year increase in daily ideas, interactions. Idea Plus achieved a 62% sequential increase in client numbers and 200% sequential growth in average daily client spend. In 2026, supported by a healthier commercial ecosystem, we aim to drive continued recovery and sustainable long-term growth in marketing services. Next, turning to the business we currently report on the paid membership, which we increasingly see evolving into a broader content and IP operations business. Paid membership remains a revenue contributor of this segment. In the fourth quarter, average monthly paid members reached 12.2 million, generating RMB 333.5 million in revenue. Short-term membership fluctuations aligned with expectations as our structural adjustments prioritize fundamental improvements in service experience and profitability to support a smooth transition during this phase, we are exploring new growth drivers, initiatives to improve member retention and ARPU are yielding results. Q4 average ARPU increased by 1.4% sequentially and overall quarterly renewal rates improved by 2.7 percentage points. Beyond the paid memberships, we are maximizing content IP's value across media adaptations and licensing. IP monetization revenue, which is currently recognized in other revenues grew more than fivefold year-over-year in the fourth quarter and doubled for the full year, underscoring the significant growth potential of this business. The monetization potential of our Yan'an Stories IP continued to translate into tangible results. In December, 2 adapted short dramas Fang and Xia, and The Seventh Year Of Secret Love For My Childhood Friend premiered on Tencent Video, quickly ranking among the platform's top releases. Fang and Xia set all-time popularity record for vertical short dramas on the platform, while Seventh Year Of Secret Love For My Childhood Friend topped the charts and sparked widespread discussion across social media. These results demonstrate our IP's strong adaptation potential and mainstream appeal. During the quarter, we released our short story influence list for the third consecutive year recognizing 62 outstanding works and 20 authors. The selection includes both mature IP already adapted into film and television as well as a pipeline of high-quality titles with strong multi-format development potential. Together, these initiatives highlight our scalable pathway for long-term value creation, cultivating high-quality content, structuring an IP portfolio and extending it across multiple formats to unlock compounding growth. Looking ahead, rapid advances in multimodal AI and the rising industry productivity are expected to further expand monetization opportunities for Yan'an Stories IP creating new growth potential for our content and IP operations business. Building on this, we are exploring a new format for IP development, AI-powered comic dramas and emerging formats driven by demand for lightweight content and improved generative model efficiency. Positioned upstream, Zhihu leverages a dense network of high-quality creators and rich content assets giving us a natural advantage as a stable source of premium IP. Strategically, we will pursue a dual-track approach of IP licensing and in-house incubation. We will also collaborate with platforms and studios to unlock mature IP value, while building in-house AI production capabilities. Turning to other revenues. Beginning in the third quarter to improve profitability, we consolidated our vocational training and the new initiatives into other revenues, which totaled RMB 75.2 million in Q4. We believe 2026 will mark another leap in AI productivity complemented by rapid expansion of real-world applications. Leveraging Zhihu's unique strength we are accelerating exploration of AI-related monetization. We also see growing potential in export data solutions as competition among other ends, increasingly shifts from scale alone to alignment, quality and real-world generalization, high-value, traceable and structured data is now the core driver of model performance. With our long-standing expert network and authentic discussion scenarios, Zhihu is well positioned upstream in the supply of high-quality knowledge and insights and we believe we can be among the earliest platforms in China to systematically define and commercialize high-value data solutions. To support this opportunity, we are developing our export data solution capabilities. At the same time, we are also exploring how to engage experts more deeply in data construction and labeling processing that supports model training and alignment. In summary, achieving full year non-GAAP profitability in 2025 marks a pivotal milestone for Zhihu, validating the resilience of our strategy and the strength of our execution. In 2026, we remain committed to prioritizing disciplined operations, while accelerating AI integration across our community and commercial models. We are sharpening our strategic focus and optimizing resource allocation. In our established businesses, we will continue to prioritize ecosystem health and the user experience, leveraging AI to drive efficiency gains and elevate content quality. At the same time, we are doubling down on AI-driven monetization innovations to cultivate new scalable growth engines. We are confident that 2026 will usher in a new era for high-quality growth for Q4, defined by the further realization of our unique AI capabilities and monetization potential. With that, I will hand the call over to our CFO, Wang Han, whose remarks will be delivered through his AI voice agent. Han, please go ahead.