Merge branch 'feature_1.0' into qa

quanyawei

2023-09-21 a5eb9feae9bb82c6d42b46d5804f714d5edbf35b

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// placeholder 
@placeholder-margin-vertical:                   15px; 
@placeholder-padding:                           20px; 
@placeholder-border:                            #ddd; 
@placeholder-background:                        #fafafa; 
@placeholder-color:                             #444; 
@placeholder-large-padding-vertical:            80px;