first commit

frontend/node_modules/rc-cascader/assets/index.less

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+@import "./select.less";
+@import "./list.less";
+@import "./panel.less";

frontend/node_modules/rc-cascader/assets/list.less

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+@select-prefix: ~'rc-cascader';
+
+.@{select-prefix} {
+  &-dropdown {
+    min-height: auto;
+  }
+
+  &-menus {
+    display: flex;
+    flex-wrap: nowrap;
+  }
+
+  &-menu {
+    flex: none;
+    margin: 0;
+    padding: 0;
+    list-style: none;
+    border-left: 1px solid blue;
+    height: 180px;
+    min-width: 100px;
+    overflow: auto;
+
+    &:first-child {
+      border-left: 0;
+    }
+
+    &-item {
+      display: flex;
+      flex-wrap: nowrap;
+      padding-right: 20px;
+      position: relative;
+
+      &:hover {
+        background: rgba(0, 0, 255, 0.1);
+      }
+
+      &-selected {
+        background: rgba(0, 0, 255, 0.05);
+      }
+
+      &-active {
+        background: rgba(0, 255, 0, 0.1);
+      }
+
+      &-disabled {
+        opacity: 0.5;
+      }
+
+      
+
+      &-content {
+        flex: auto;
+      }
+
+      &-expand-icon {
+        position: absolute;
+        right: 4px;
+        top: 50%;
+        transform: translateY(-50%);
+      }
+    }
+  }
+
+  &-checkbox {
+    position: relative;
+    display: block;
+    flex: none;
+    width: 20px;
+    height: 20px;
+    border: 1px solid blue;
+
+    &::after {
+      position: absolute;
+      top: 50%;
+      left: 50%;
+      transform: translate(-50%, -50%);
+      content: '';
+    }
+
+    &-checked::after {
+      content: '✔️';
+    }
+
+    &-indeterminate::after {
+      content: '➖';
+    }
+  }
+
+  // ====================== RTL ======================
+  &-rtl {
+    direction: rtl;
+
+    .@{select-prefix}-menu {
+      flex: none;
+      margin: 0;
+      padding: 0;
+      list-style: none;
+      border-left: none;
+      border-right: 1px solid blue;
+
+      &:first-child {
+        border-right: 0;
+      }
+    }
+  }
+}

frontend/node_modules/rc-cascader/assets/panel.less

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+@import (reference) './index.less';
+
+.@{select-prefix} {
+  &-panel {
+    border: 1px solid green;
+  }
+}

frontend/node_modules/rc-cascader/assets/select.less

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+@import '~rc-select/assets/index';
+
+@select-prefix: ~'rc-cascader';