新增 `input` 获取焦点时的光环效果，以提升当前输入框的辨别度

src/css/layui.css

@@ -720,7 +720,7 @@ a cite{font-style: normal; *cursor:pointer;}
 .layui-select::-webkit-input-placeholder{line-height: 1.3;}
 .layui-input, .layui-textarea{display: block; width: 100%; padding-left: 10px;}
 .layui-input:hover, .layui-textarea:hover{border-color: #d2d2d2 !important;}
-.layui-input:focus, .layui-textarea:focus{border-color: #d2d2d2 !important;}
+.layui-input:focus, .layui-textarea:focus{border-color: #16b777 !important; box-shadow: 0 0 0 3px rgba(22,183,119,0.08);}
 .layui-textarea{position: relative; min-height: 100px; height: auto; line-height: 20px; padding: 6px 10px; resize: vertical;}
 .layui-select{padding: 0 10px;}
 .layui-form select,
@@ -744,7 +744,7 @@ a cite{font-style: normal; *cursor:pointer;}
 
 /* 警告条 */
 .layui-form-danger:focus,
-.layui-form-danger+.layui-form-select .layui-input{border-color: #ff5722 !important;}
+.layui-form-danger+.layui-form-select .layui-input{border-color: #ff5722 !important; box-shadow: 0 0 0 3px rgba(255,87,34,0.08);}
 
 
 /* 输入框点缀  */
@@ -780,7 +780,7 @@ a cite{font-style: normal; *cursor:pointer;}
 .layui-input-wrap .layui-input-prefix,
 .layui-input-wrap .layui-input-suffix,
 .layui-input-wrap .layui-input-split{pointer-events: none;}
-.layui-input-wrap .layui-input:focus + .layui-input-split{border-color: #d2d2d2;}
+.layui-input-wrap .layui-input:focus + .layui-input-split{border-color: #16b777;}
 .layui-input-wrap .layui-input-prefix.layui-input-split{border-width: 0; border-right-width: 1px;}
 
 /* 输入框动态点缀  */