分屏的关闭事件，相关样式调整

shuishen

2021-06-04 a239631f7bbd0c17037c31d3fcb04504ab317c51

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//>>built
define({add:"\u65b0\u589e",addAuthor:"\u65b0\u589e\u4f5c\u8005",addContributor:"\u65b0\u589e\u8ca2\u737b\u8005"});