style(storybook): refine form component stories

src/components/switch.stories.tsx

@@ -1,15 +1,33 @@
 import { useId, type ReactNode } from "react"
 import type { Meta, StoryObj } from "@storybook/react-vite"
 import { Label, Switch } from "@hm-design/ui"
-import { StateBoard } from "@/components/story-board"
+import { StateBoard, type BoardState } from "@/components/story-board"
 import { StoryPage, StoryPageHeader, StorySection } from "@/components/story-page"
 
+// Story-only Label color. The shared Label sets `color: var(--hm-label-text)` from an unlayered theme rule, so a utility
+// like `text-foreground` loses to it; overriding the Label's own token on the element works. Option labels use the default
+// text color; a Label next to a disabled Switch (`peer-disabled`) keeps the secondary color. State titles are untouched.
+const optionLabel = "[--hm-label-text:var(--foreground)] peer-disabled:[--hm-label-text:var(--hm-sem-fg-secondary)]"
+
 function Option({ label, children }: { label: string; children: (id: string) => ReactNode }) {
   const id = useId()
   return (
     <div className="flex items-center gap-2">
       {children(id)}
-      <Label htmlFor={id}>{label}</Label>
+      <Label htmlFor={id} className={optionLabel}>{label}</Label>
+    </div>
+  )
+}
+
+// Representative-page layout (Storybook presentation only): 5 equal columns on PC (iframe width 1000px and up), shrinking
+// to fit below that (150px minimum per column). Each specimen sits in its own single-column StateBoard (min larger than
+// any column), so StateBoard's auto-fill grid cannot leave an empty or stretched track.
+function StateGrid({ states }: { states: BoardState[] }) {
+  return (
+    <div className="grid items-start gap-6 [grid-template-columns:repeat(auto-fill,minmax(min(100%,150px),1fr))] min-[1000px]:grid-cols-5">
+      {states.map((state) => (
+        <StateBoard key={state.id} min={10000} states={[state]} />
+      ))}
     </div>
   )
 }
@@ -36,19 +54,11 @@ export const All: Story = {
   render: () => (
     <StoryPage>
       <StoryPageHeader title="Switch" />
-      <StorySection title="Overview">
-        <StateBoard
-          min={240}
+      <StorySection title="States">
+        <StateGrid
           states={[
             { id: "off", label: "Off", children: <Option label="Option">{(id) => <Switch id={id} />}</Option> },
             { id: "on", label: "On", children: <Option label="Option">{(id) => <Switch id={id} defaultChecked />}</Option> },
-          ]}
-        />
-      </StorySection>
-      <StorySection title="States">
-        <StateBoard
-          min={240}
-          states={[
             {
               id: "hover",
               label: "Hover",