分屏的关闭事件，相关样式调整

shuishen

2021-06-04 a239631f7bbd0c17037c31d3fcb04504ab317c51

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//>>built
define({previousMessage:"\u4ee5\u524d\u306e\u9078\u629e\u9805\u76ee",nextMessage:"\u8ffd\u52a0\u306e\u9078\u629e\u9805\u76ee"});