KARUU brand interactive H5 offline prototype, 2026-10-21.

Rule implementation: original KARUU Xiaoju 2048 core.js, byte-identical copy
from D:/KARUU_Workspace/Projects/Xiaoju-Fish-Memory/games/xiaoju-2048/core.js.
Original introduction commit: 337a723aaa33b2b111dd25d138bc0232e37571bc.
Snapshot commit: 75fa0577f67aae10e6fd11ae24241d4f4fb302dd.
The original engine comment identifies it as an original implementation with
no upstream JS, CSS or artwork copied. This project's recorded source review
is included in SOURCES.json in the complete delivery archive. This public
website excerpt contains runtime and licence files only.
First-party reuse here is limited to the current
owner-directed service demonstration; see LICENSE.txt for the actual grant.
Absence of an old general LICENSE is not treated as permission for arbitrary
third parties to sell or redistribute the original KARUU source.

2048 rules inspiration: Gabriele Cirulli, gabrielecirulli/2048,
commit 478b6ec346e3787f589e4af751378d06ded4cbbc.
https://github.com/gabrielecirulli/2048
Copyright (c) 2014 Gabriele Cirulli.
The existing complete MIT license is retained verbatim at
licenses/2048-MIT.txt; expected SHA256:
57e12c39a6ad9d98b2e451065bfdfbd15fc9e0c2ed3bf4dc1d09acab41ff02fc.
No upstream executable source is added by this template.

Brand interface, copy, configuration adapter and offline packaging are new
first-party work for this authorized demonstration. Example brands are demo
labels, not claims of an actual customer relationship.

No images, logos, audio, embedded font files, CDN assets or third-party runtime
libraries are included. Numbers and decorative shapes use HTML/CSS. The
system-ui/Segoe UI/sans-serif stack uses installed system fonts; no font
software is redistributed. The canonical Xiaoju artwork and original audio
remain in their original project and are not licensed onward by this demo.