闭馆后的外侧还书口

提示词

生成图书馆外侧还书口意向，还书装置、短暂停留平台与闭馆后仍可到达的外侧边界清楚，不自动打开图书馆门厅。

Create an exterior library book-return concept with a clear return device, brief stopping area, and an outside approach remaining separate from the closed lobby; do not open the library entrance automatically.