Attribution-NonCommercial-ShareAlike 4.0 International

Copyright (c) 2026 dayinxisheng

This work is licensed under the Creative Commons
Attribution-NonCommercial-ShareAlike 4.0 International License.

You are free to:

  Share - copy and redistribute the material in any medium or format
  Adapt - remix, transform, and build upon the material

Under the following terms:

  Attribution - You must give appropriate credit, provide a link to
  the license, and indicate if changes were made.

  NonCommercial - You may not use the material for commercial purposes.

  ShareAlike - If you remix, transform, or build upon the material,
  you must distribute your contributions under the same license as
  the original.

  No additional restrictions - You may not apply legal terms or
  technological measures that legally restrict others from doing
  anything the license permits.

Notices:

  You do not have to comply with the license for elements of the
  material in the public domain or where your use is permitted by an
  applicable exception or limitation.

  No warranties are given. The license may not give you all of the
  permissions necessary for your intended use. For example, other
  rights such as publicity, privacy, or moral rights may limit how
  you use the material.

Full license text:
https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode
