在主题化引导4中覆盖默认$border radius lg变量

我正在为我的项目使用Bootstrap4框架。

我通过覆盖核心变量来创建主题。如果我调整网格变量,它们会工作,但是如果我尝试更新 $border-radius-lg var,则不会发生任何更改,默认值为 $border radius lg 尺寸仍在使用中。

这是放置自定义变量的位置。。。

@import "scss/functions";
@import "scss/variables";

// my custom variables
@import "myvars";

@import "scss/mixins";
@import "scss/root";
@import "scss/reboot";
@import "scss/type";
@import "scss/images";
@import "scss/code";
@import "scss/grid";
@import "scss/tables";
@import "scss/forms";
@import "scss/buttons";
@import "scss/transitions";
@import "scss/dropdown";
@import "scss/button-group";
@import "scss/input-group";
@import "scss/custom-forms";
@import "scss/nav";
@import "scss/navbar";
@import "scss/card";
@import "scss/breadcrumb";
@import "scss/pagination";
@import "scss/badge";
@import "scss/jumbotron";
@import "scss/alert";
@import "scss/progress";
@import "scss/media";
@import "scss/list-group";
@import "scss/close";
@import "scss/toasts";
@import "scss/modal";
@import "scss/tooltip";
@import "scss/popover";
@import "scss/carousel";
@import "scss/spinners";
@import "scss/utilities";
@import "scss/print";

这些是我的定制变量 myvars

/* my custom bootstrap 4 vars
-------------------------------------------------- */

// these work fine when I make changes to test
$grid-columns:                12;
$grid-gutter-width:           30px;

// this doesn't change any of my large input radius
$border-radius-lg:            1rem;

我检查了引导程序 variables 文件和 $border radius lg 是的父变量 $input-border-radius-lg .3rem

有人知道如何让这个工作吗?