服务条款
本条款是你与上海模视教育科技有限公司（下称「我们」）之间，关于使用「模型视角 Model Insight」（www.modelinsight.chat，下称「本站」）的协议。注册账号或使用本站服务，即表示你已阅读并接受本条款。
一、我们提供什么
本站围绕数学建模提供以下服务：课程与学习内容、模型库与框架速查、竞赛信息与论文库、AI 建模搭档（对话式建模辅导）、建模空间（多人协作写作与任务看板）、以及一组在线计算工具。
各项功能会随版本调整。我们可能新增、修改或下线某项功能；涉及已付费权益的重大变更，我们会提前通过站内或邮件通知。
二、账号
注册需要邮箱、密码与邀请码。请使用你本人可长期接收邮件的地址——找回密码、开通会员、权益通知都走这个邮箱。
请妥善保管密码。通过你的账号发生的操作视为你本人的操作，除非你能证明账号被盗用且已及时通知我们。发现异常请立即联系 wanghaihua@modelinsight.cn。
一个账号供一人使用。出借、共享、转售账号，或以自动化手段批量注册，我们有权暂停或终止该账号。
三、未成年人使用
本站的竞赛内容覆盖中学乃至小学阶段（如 HiMCM、MidMCM、SIMCC）。如果你未满 18 周岁，请在监护人同意并指导下使用本站；未满 14 周岁的，需由监护人阅读本条款与《隐私政策》并代为同意后方可注册。
监护人如发现未成年人未经同意注册或付费，可联系我们处理账号与款项。
四、会员与付款
本站目前不接入在线支付。购买流程为：你扫码付款后，将付款截图与常用邮箱发送至 wanghaihua@modelinsight.cn，我们人工核对后回邮件发放邀请码，你用邀请码注册或升级。
因此：不存在自动续费，也不会有任何自动扣款。会员到期即停止续期，需要继续使用请重新走上面的流程。
邀请码一经使用即失效，请勿转让。权益内容以你付款当时页面与邮件载明的为准。
退款：虚拟内容一经开通即可全量访问，原则上不支持退款。但如果出现重复付款、开通失败、或我们下线了你已付费的核心功能，请联系我们，我们会按实际情况退还相应款项。
五、你上传的内容
你在本站创建的内容——建模对话、协作文档、社区帖子与评论、上传的附件与作品——所有权归你。
为了向你提供服务（存储、展示、协作同步、导出、以及在你主动发起分享时向被分享者展示），你授予我们一项非独占、无地域限制、不收费的许可，用于存储、复制、传输和展示这些内容。这项许可仅限于提供服务本身，我们不会把你的内容用于对外宣传或出售给第三方。
你承诺：你有权上传这些内容，且内容不侵犯他人的著作权、商标权、隐私权或其他权利。
六、不得做的事
- 上传或传播违法、侵权、含恶意代码的内容
- 上传你没有授权的受版权保护材料（包括未经许可的教材、试题、论文全文）
- 攻击、探测、绕过本站的安全机制，或以爬虫等自动化手段批量抓取内容
- 将本站内容用于商业转售、二次分发或搭建竞品服务
- 冒充他人，或在协作空间内骚扰其他成员
七、AI 功能与竞赛诚信
AI 建模搭档是学习辅助工具。它生成的思路、公式、代码与文字可能出错、过时或自相矛盾，请务必自行核对后再使用。我们不对依据 AI 输出做出的任何决定承担责任。
关于竞赛：各项数学建模竞赛（MCM/ICM、HiMCM、MidMCM、CUMCM 等）对 AI 工具的使用各有规定，且规则逐年变化。你有责任在参赛前阅读并遵守当届赛事的官方规则与诚信条款。本站不对因违反赛事规则导致的取消成绩等后果承担责任。把 AI 的输出原样提交为自己的作品，在多数赛事中都属于违规。
八、第三方与站内引用内容
本站的竞赛资料、赛题、论文与外部链接，著作权归原作者或主办方所有，仅供学习参考。其中部分材料带有原始出处的转载限制，我们已在相应页面标注，请遵守。
站外链接指向的内容不由我们控制，我们不对其承担责任。
九、服务的中断与终止
我们会尽力保持服务可用，但不承诺不中断——系统维护、第三方服务故障、不可抗力都可能导致暂时不可用。
如果你严重违反本条款，我们可在通知后暂停或终止你的账号。你也可以随时停止使用并要求注销账号，注销方式见《隐私政策》。
十、责任限制
在法律允许的范围内，我们对本站服务按「现状」提供。对于因使用本站而产生的间接损失、数据丢失、成绩或商业机会损失，我们不承担责任。在任何情况下，我们的赔偿责任总额不超过你在过去 12 个月内为本站实际支付的费用。
本条不排除法律规定不可排除的责任，也不免除我们因故意或重大过失造成损害的责任。
十一、条款变更
本条款可能更新。重大变更我们会在本页顶部标注并通过邮件通知已注册用户。变更后继续使用本站，视为接受新条款；不接受的，可以停止使用并注销账号。
十二、适用法律与争议解决
本条款适用中华人民共和国法律。因本条款产生的争议，双方应先友好协商；协商不成的，任何一方可向我们住所地有管辖权的人民法院提起诉讼。
十三、联系我们
邮箱 wanghaihua@modelinsight.cn · 微信 modelinsight1
公司名称：上海模视教育科技有限公司
These Terms govern your use of Model Insight (www.modelinsight.chat, the "Site"), operated by Shanghai Moshi Education Technology Co., Ltd. ("we", "us"). By creating an account or using the Site you accept these Terms.
1. What we provide
The Site offers mathematical-modeling courses and learning material, a model library and framework references, contest information and a paper library, an AI modeling partner (conversational tutoring), a collaboration workspace (shared writing and task boards), and a set of online calculators.
Features change between releases. We may add, change or retire a feature; where a change materially affects something you have paid for, we will tell you beforehand on the Site or by email.
2. Your account
Registration requires an email address, a password and an invite code. Use an address you will keep — password resets, membership activation and benefit notices all go there.
Keep your password safe. Activity through your account is treated as yours unless you can show the account was compromised and you told us promptly. Contact wanghaihua@modelinsight.cn if something looks wrong.
One account is for one person. Lending, sharing or reselling an account, or registering in bulk by automated means, may lead to suspension or termination.
3. Use by minors
The contests covered here reach into secondary and even primary education (HiMCM, MidMCM, SIMCC). If you are under 18, use the Site with your guardian's consent and guidance. If you are under 14, a guardian must read these Terms and the Privacy Policy and consent on your behalf before you register.
Guardians who find that a minor registered or paid without consent can contact us to sort out the account and the payment.
4. Membership and payment
The Site currently has no online payment integration. To buy: scan the QR code to pay, then email the payment screenshot and the address you want the account on to wanghaihua@modelinsight.cn. We check it by hand and reply with an invite code, which you use to register or upgrade.
So there is no auto-renewal and nothing is ever charged automatically. Membership simply stops at the end of its term; to continue, repeat the process above.
An invite code is void once used and is not transferable. What the membership includes is what the page and our email said at the time you paid.
Refunds: because access to digital content is complete as soon as it is granted, we generally do not refund. But if you were charged twice, activation failed, or we retire a core feature you paid for, contact us and we will refund what is fair.
5. Content you upload
What you create here — modeling conversations, collaborative documents, community posts and comments, uploaded attachments and projects — belongs to you.
So that we can run the service (store it, display it, sync collaboration, export it, and show it to people you deliberately share it with), you grant us a non-exclusive, worldwide, royalty-free licence to store, copy, transmit and display that content. This licence exists only to provide the service; we do not use your content for promotion and do not sell it to anyone.
You confirm that you have the right to upload the content and that it does not infringe anyone's copyright, trademark, privacy or other rights.
6. What you must not do
- Upload or distribute unlawful or infringing content, or anything carrying malicious code
- Upload copyrighted material you are not licensed to share — textbooks, problem sets, or full papers included
- Attack, probe or circumvent the Site's security, or scrape content in bulk
- Resell or redistribute the Site's content, or use it to build a competing service
- Impersonate others, or harass other members in the collaboration workspace
7. AI features and contest integrity
The AI modeling partner is a study aid. The reasoning, formulas, code and prose it produces can be wrong, out of date or self-contradictory. Check its output before you rely on it. We are not responsible for decisions made on the strength of it.
About contests: every modeling contest (MCM/ICM, HiMCM, MidMCM, CUMCM and others) sets its own rules on AI tools, and those rules change from year to year. It is your responsibility to read and follow the official rules and integrity terms of the contest you are entering. We are not responsible if your result is voided for breaking them. Submitting AI output as your own work breaches the rules of most contests.
8. Third-party and quoted material
Contest documents, problems, papers and external links on the Site remain the copyright of their authors or organisers and are here for study only. Some of it carries redistribution restrictions from the original source; we mark those on the relevant pages, and you should respect them.
We do not control what external links point to and are not responsible for it.
9. Interruption and termination
We try to keep the service running but do not promise it will never stop — maintenance, third-party outages and events beyond our control can all take it offline for a time.
If you seriously breach these Terms we may suspend or close your account after telling you. You may stop using the Site and ask us to delete your account at any time; see the Privacy Policy for how.
10. Limitation of liability
To the extent the law allows, the Site is provided "as is". We are not liable for indirect loss, lost data, lost contest results or lost business opportunities arising from your use of it. In any case our total liability will not exceed what you actually paid us in the previous 12 months.
Nothing here excludes liability that the law does not allow us to exclude, or liability for harm we cause intentionally or through gross negligence.
11. Changes to these Terms
These Terms may be updated. We will note material changes at the top of this page and email registered users. Continuing to use the Site after a change means you accept the new Terms; if you do not, you can stop using the Site and close your account.
12. Governing law and disputes
These Terms are governed by the law of the People's Republic of China. We will try to resolve any dispute by discussion first; failing that, either party may bring proceedings before the competent court where we are domiciled.
13. Contact
Email wanghaihua@modelinsight.cn · WeChat modelinsight1
Company: Shanghai Moshi Education Technology Co., Ltd.