1. IntroductionThis page explains how and why we collect and use your personal information when you visit Zhonghua Notes (znotes.cloudservetechcentral.com) or any associated subdomain operated by Zhonghua Notes or Kayden Lee ("we", "us", or "our").2. Who will process my personal information?When you view or use our website, Zhonghua Notes is the data controller for the information collected through your use of the site.This notice applies to personal data processed by Zhonghua Notes in connection with your use of the platform and related services, including account creation, note uploads, and community interactions.If you follow a link from our site to another site (for example, an embedded resource or external document), please review that site's privacy policy to understand how your information will be handled.3. What personal information is collected and why?For site security and performanceWhen you visit our website we collect basic technical information sent automatically by your browser. This includes your IP address, browser version, device type, date and time of access, and pages visited. We use this information to maintain and secure our systems and to detect unauthorised access. Technical logs are retained for up to 3 decades and deleted thereafter unless required for an ongoing security investigation.To provide and improve our serviceIf you create an account, upload materials, or interact with others on Zhonghua Notes, we collect only the information necessary to support those actions — for example your email address, display name, and metadata about uploaded content (file name, upload date). We use analytics to understand how users interact with the platform and to improve usability.To remember your preferencesWe may use cookies to remember display settings (for example, dark or light theme) and to keep you signed in securely. If you consent to additional cookies, embedded third-party services (for example video previews) may set their own cookies according to their privacy policies.4. What should you expect to happen with the information?We process personal information to operate, maintain, and improve Zhonghua Notes. This includes maintaining system security, improving user experience, and communicating with you about account matters or important updates.We do not sell, rent, or share personal data for third-party marketing purposes. Third-party service providers (for example: analytics and hosting) process data under contract and are required to keep your information secure.We apply appropriate encryption and security measures and review our systems regularly to prevent unauthorised access or misuse.5. Where your data is processed and storedOur systems are hosted in Singapore and may use third-party infrastructure located in jurisdictions recognised as offering an adequate level of data protection. If personal data is transferred outside Singapore, we will apply safeguards such as standard contractual clauses or other appropriate measures to protect your information.6. Children's privacy protectionZhonghua Notes is designed for users aged 13 and above. We do not intentionally collect personal information from children under 13. If you believe we have inadvertently collected such information, contact us and we will remove it promptly.7. Contact InformationIf you have questions about how we use your data or wish to request access, correction, or deletion, contact us at:Email: kayden@cloudservetechcentral.com