Terms of Service

Last updated: 2026-08-19
Effective date: 2026-08-19

Welcome to the services provided by this website (including but not limited to the whiteboard, courseware, Quiz, orders, and account systems). Before registering or logging in, you must read and agree to these Terms. If you do not agree, please stop using the services of this website.

1. Definitions

"This Website / We": refers to the operator of this website and its affiliated service providers.
"User / You": refers to any individual or organization that accesses or uses the services of this website.
"User Content": refers to content uploaded, created, published, or transmitted by users through this website, including but not limited to text, images, audio and video, courseware, whiteboard materials, question banks, links, nicknames, and avatars.

2. Accounts and Security

You should provide truthful, accurate, and lawful registration information and keep it up to date.
You should safeguard your account, password, and verification codes, and must not transfer, lend, or share your account with others for improper purposes.
Risks arising from account disclosure, unauthorized use, or data loss caused by your own actions shall be borne by you; we will provide reasonable assistance where possible.

2.1 Service Usage Restrictions

Services ordered on this website are limited to use by the registered user only and may not be resold to third parties, nor may one account be shared with multiple people for an extended period. This website continuously optimizes its risk control and detection policies. Where there is reasonable evidence of resale of this website's goods or services, or of an account being shared by multiple people over a long period, this website may take measures including but not limited to restricting features, suspending or terminating account services, and refusing further orders; any fees, losses, or disputes arising as a result shall be borne by the users concerned.

3. Lawful Use and Prohibited Conduct

You undertake to use this website's services within the law and must not use this website to engage in any illegal activity or any conduct that infringes the lawful rights and interests of others, including but not limited to:

Conduct that violates applicable laws and regulations, regulatory requirements, or public order and good customs;
Infringing upon the copyrights, trademark rights, portrait rights, privacy rights, trade secrets, or other rights of others;
Uploading or disseminating content that contains violence, terrorism, gambling, fraud, obscenity or pornography, hatred, or discrimination, or other illegal or non-compliant content;
Using this website to engage in network attacks, abusive scraping, malicious registration, bulk verification-code flooding, bypassing permissions, or exceeding usage limits;
Interfering with the normal operation of this website, undermining its security mechanisms, or accessing other people's accounts or data without authorization.

We have the right to take measures against content or accounts suspected of violating the rules without prior notice, including but not limited to deleting content, restricting features, and suspending or terminating services, and we reserve the right to pursue legal liability.

4. User Content and Disclaimer

You bear full responsibility for the source, lawfulness, authorization, and consequences of the user content you upload, create, or publish.
If your user content involves third-party rights (such as copyrighted materials, other people's photos or works, or educational resources), you must ensure that you have obtained sufficient, lawful, and valid authorization or a lawful basis of rights.
To the extent permitted by law, this website provides users with content storage, display, and collaboration tools, but makes no guarantee as to the lawfulness, accuracy, or completeness of user content itself.
Any complaints, claims, penalties, or disputes arising from user content shall be borne by the users concerned; if this website suffers losses as a result, the user shall provide compensation.

5. Service Changes, Interruptions, and Termination

We may change the service content, features, fee rules, and restriction policies based on business adjustments, with reasonable notice or announcements.
We will make every effort to restore service interruptions or data delays caused by force majeure, network failures, system maintenance, or regulatory requirements, but shall not be liable for any indirect losses arising therefrom (unless otherwise provided by law).

6. Fees and Orders (if applicable)

If you purchase services or packages through this website, they will be provided according to the rules, permissions, validity periods, and restrictions displayed on the page. Since package permission configuration for online services such as the whiteboard may depend on the account system, we recommend that you register or log in before placing an order.

7. Governing Law and Dispute Resolution

These Terms are governed by the laws and regulations of the country or region that has jurisdiction over this website. Any dispute arising from these Terms or from the use of this website's services shall first be resolved through friendly negotiation; if negotiation fails, the dispute shall be submitted to the competent court or arbitration institution.

8. Contact Us

If you have any questions about these Terms or our services, please contact us through the contact channels published on this website.