全局只读/禁用字体颜色加深

src/assets/scss/global.scss

@@ -552,6 +552,7 @@ input[type="number"] {
 .el-input__inner[readonly],
 .el-textarea.is-disabled .el-textarea__inner,
 .el-textarea__inner[readonly],
-.el-select.is-disabled .el-input__inner {
+.el-select.is-disabled .el-input__inner,
+.el-checkbox.is-disabled .el-checkbox__label {
   color: #333333 !important;
 }