分屏的关闭事件，相关样式调整

shuishen

2021-06-04 a239631f7bbd0c17037c31d3fcb04504ab317c51

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//>>built
define({ltr:"\u4ece\u5de6\u5230\u53f3\u6587\u672c\u65b9\u5411",rtl:"\u4ece\u53f3\u5230\u5de6\u6587\u672c\u65b9\u5411"});