MIT License

Copyright (c) 2026 Softie Idioms (软乎乎 · 成语泡泡)
Portions Copyright (c) 2026 gear_machine

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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Exceptions to the MIT License (MIT 许可证例外说明)

1. Character, Logo and Brand (Mascot "Softie" / 软乎乎)

   The MIT License above does NOT apply to the mascot character "Softie"
   (软乎乎) or to the "Softie Idioms" (软乎乎 · 成语泡泡) name, brand and logo,
   including their designs, shapes, color palettes and likenesses as defined
   and drawn in js/softie.js, icon.svg, and index.html (the "Brand & Characters").
   Copyright (c) 2026 Softie Idioms.

   You may, without asking, use the Brand & Characters for non-commercial purposes,
   including fan art, illustrations, animations, videos, social media posts,
   and non-commercial forks or modified versions of this game.

   The following are NOT permitted without prior written permission:
   - commercial use, such as selling merchandise, artworks, physical/digital
     goods featuring the Characters, or using them in paid products, services
     or advertising;
   - using the Characters or Brand as the name, mascot, or branding of another
     product or service, or presenting your work as official;
   - uses that are offensive, defamatory, or that harm the reputation of the
     Characters or of this project.

   Gameplay videos and live streams of this game are permitted, including on
   platforms where the creator receives advertising or tipping revenue.

   When a fan work or fork is published, please make clear that it is unofficial.

2. Original Question Bank and Content (原创题库与内容)

   The idiom questions, interpretations, contextual sentences, and distractors
   located in js/content/ (including children.js, adult.js) are proprietary
   educational content of Softie Idioms. They are not covered by the MIT License
   and may not be scraped, repackaged, or sold for commercial educational products
   without authorization.