diff --git a/web/app/components/base/ui/scroll-area/scroll-area.css b/packages/dify-ui/src/styles/components.css
similarity index 64%
rename from web/app/components/base/ui/scroll-area/scroll-area.css
rename to packages/dify-ui/src/styles/components.css
index 7a33076acf..ab02be97fb 100644
--- a/web/app/components/base/ui/scroll-area/scroll-area.css
+++ b/packages/dify-ui/src/styles/components.css
@@ -15,7 +15,7 @@
   width: 4px;
   height: 12px;
   transform: translateX(-50%);
-  background: linear-gradient(to bottom, var(--scroll-area-edge-hint-bg, var(--color-components-panel-bg)), transparent);
+  background: linear-gradient(to bottom, var(--color-components-panel-bg), transparent);
 }
 
 [data-dify-scrollbar][data-orientation='vertical']::after {
@@ -24,7 +24,7 @@
   width: 4px;
   height: 12px;
   transform: translateX(-50%);
-  background: linear-gradient(to top, var(--scroll-area-edge-hint-bg, var(--color-components-panel-bg)), transparent);
+  background: linear-gradient(to top, var(--color-components-panel-bg), transparent);
 }
 
 [data-dify-scrollbar][data-orientation='horizontal']::before {
@@ -33,7 +33,7 @@
   width: 12px;
   height: 4px;
   transform: translateY(-50%);
-  background: linear-gradient(to right, var(--scroll-area-edge-hint-bg, var(--color-components-panel-bg)), transparent);
+  background: linear-gradient(to right, var(--color-components-panel-bg), transparent);
 }
 
 [data-dify-scrollbar][data-orientation='horizontal']::after {
@@ -42,7 +42,7 @@
   width: 12px;
   height: 4px;
   transform: translateY(-50%);
-  background: linear-gradient(to left, var(--scroll-area-edge-hint-bg, var(--color-components-panel-bg)), transparent);
+  background: linear-gradient(to left, var(--color-components-panel-bg), transparent);
 }
 
 [data-dify-scrollbar][data-orientation='vertical']:not([data-overflow-y-start])::before {
@@ -61,12 +61,6 @@
   opacity: 1;
 }
 
-[data-dify-scrollbar][data-hovering] > [data-orientation],
-[data-dify-scrollbar][data-scrolling] > [data-orientation],
-[data-dify-scrollbar] > [data-orientation]:active {
-  background-color: var(--scroll-area-thumb-bg-active, var(--color-state-base-handle-hover));
-}
-
 @media (prefers-reduced-motion: reduce) {
   [data-dify-scrollbar]::before,
   [data-dify-scrollbar]::after {
diff --git a/packages/dify-ui/src/styles/styles.css b/packages/dify-ui/src/styles/styles.css
index a712e9c5db..fb410b2d5f 100644
--- a/packages/dify-ui/src/styles/styles.css
+++ b/packages/dify-ui/src/styles/styles.css
@@ -1,3 +1,4 @@
 @import '../themes/light.css' layer(base);
 @import '../themes/dark.css' layer(base);
 @import './utilities.css';
+@import './components.css';
diff --git a/web/app/components/app/configuration/dataset-config/params-config/weighted-score.tsx b/web/app/components/app/configuration/dataset-config/params-config/weighted-score.tsx
index 8488d0269f..e5080f26e4 100644
--- a/web/app/components/app/configuration/dataset-config/params-config/weighted-score.tsx
+++ b/web/app/components/app/configuration/dataset-config/params-config/weighted-score.tsx
@@ -1,12 +1,11 @@
-import type { CSSProperties } from 'react'
 import { noop } from 'es-toolkit/function'
 import { memo } from 'react'
 import { useTranslation } from 'react-i18next'
 import { Slider } from '@/app/components/base/ui/slider'
 
-const weightedScoreSliderStyle: CSSProperties & Record<'--slider-track' | '--slider-range', string> = {
-  '--slider-track': 'var(--color-util-colors-teal-teal-500)',
-  '--slider-range': 'var(--color-util-colors-blue-light-blue-light-500)',
+const weightedScoreSliderSlotClassNames = {
+  track: 'bg-util-colors-teal-teal-500',
+  indicator: 'bg-util-colors-blue-light-blue-light-500',
 }
 
 const formatNumber = (value: number) => {
@@ -37,7 +36,7 @@ const WeightedScore = ({
   return (
     <div>
       <div className="space-x-3 rounded-lg border border-components-panel-border px-3 pt-5 pb-2">
-        <div className="grow" style={weightedScoreSliderStyle}>
+        <div className="grow">
           <Slider
             className="grow"
             max={1.0}
@@ -47,6 +46,7 @@ const WeightedScore = ({
             onValueChange={v => !readonly && onChange({ value: [v, (10 - v * 10) / 10] })}
             disabled={readonly}
             aria-label={t('weightedScore.semantic', { ns: 'dataset' })}
+            slotClassNames={weightedScoreSliderSlotClassNames}
           />
         </div>
         <div className="mt-3 flex justify-between">
diff --git a/web/app/components/base/ui/alert-dialog/index.tsx b/web/app/components/base/ui/alert-dialog/index.tsx
index f277c343fc..5f2af43df8 100644
--- a/web/app/components/base/ui/alert-dialog/index.tsx
+++ b/web/app/components/base/ui/alert-dialog/index.tsx
@@ -14,16 +14,14 @@ export const AlertDialogDescription = BaseAlertDialog.Description
 type AlertDialogContentProps = {
   children: ReactNode
   className?: string
-  overlayClassName?: string
-  popupProps?: Omit<BaseAlertDialog.Popup.Props, 'children' | 'className'>
+  backdropClassName?: string
   backdropProps?: Omit<BaseAlertDialog.Backdrop.Props, 'className'>
 }
 
 export function AlertDialogContent({
   children,
   className,
-  overlayClassName,
-  popupProps,
+  backdropClassName,
   backdropProps,
 }: AlertDialogContentProps) {
   return (
@@ -33,11 +31,10 @@ export function AlertDialogContent({
         className={cn(
           'fixed inset-0 z-1002 bg-background-overlay',
           'transition-opacity duration-150 data-ending-style:opacity-0 data-starting-style:opacity-0 motion-reduce:transition-none',
-          overlayClassName,
+          backdropClassName,
         )}
       />
       <BaseAlertDialog.Popup
-        {...popupProps}
         className={cn(
           'fixed top-1/2 left-1/2 z-1002 max-h-[calc(100vh-2rem)] w-[480px] max-w-[calc(100vw-2rem)] -translate-x-1/2 -translate-y-1/2 overflow-y-auto overscroll-contain rounded-2xl border-[0.5px] border-components-panel-border bg-components-panel-bg shadow-lg',
           'transition-[transform,scale,opacity] duration-150 data-ending-style:scale-95 data-ending-style:opacity-0 data-starting-style:scale-95 data-starting-style:opacity-0 motion-reduce:transition-none',
diff --git a/web/app/components/base/ui/dialog/index.tsx b/web/app/components/base/ui/dialog/index.tsx
index 7ee9cffa8b..bc82230f58 100644
--- a/web/app/components/base/ui/dialog/index.tsx
+++ b/web/app/components/base/ui/dialog/index.tsx
@@ -42,14 +42,14 @@ export function DialogCloseButton({
 type DialogContentProps = {
   children: ReactNode
   className?: string
-  overlayClassName?: string
-  backdropProps?: BaseDialog.Backdrop.Props
+  backdropClassName?: string
+  backdropProps?: Omit<BaseDialog.Backdrop.Props, 'className'>
 }
 
 export function DialogContent({
   children,
   className,
-  overlayClassName,
+  backdropClassName,
   backdropProps,
 }: DialogContentProps) {
   return (
@@ -59,8 +59,7 @@ export function DialogContent({
         className={cn(
           'fixed inset-0 z-1002 bg-background-overlay',
           'transition-opacity duration-150 data-ending-style:opacity-0 data-starting-style:opacity-0 motion-reduce:transition-none',
-          overlayClassName,
-          backdropProps?.className,
+          backdropClassName,
         )}
       />
       <BaseDialog.Popup
diff --git a/web/app/components/base/ui/scroll-area/index.tsx b/web/app/components/base/ui/scroll-area/index.tsx
index 9a23145039..300946b1bf 100644
--- a/web/app/components/base/ui/scroll-area/index.tsx
+++ b/web/app/components/base/ui/scroll-area/index.tsx
@@ -3,7 +3,6 @@
 import type { ReactNode } from 'react'
 import { ScrollArea as BaseScrollArea } from '@base-ui/react/scroll-area'
 import { cn } from '@langgenius/dify-ui/cn'
-import './scroll-area.css'
 
 export const ScrollAreaRoot = BaseScrollArea.Root
 type ScrollAreaRootProps = BaseScrollArea.Root.Props
@@ -25,7 +24,7 @@ type ScrollAreaProps = Omit<ScrollAreaRootProps, 'children'> & {
 }
 
 const scrollAreaScrollbarClassName = cn(
-  'flex touch-none overflow-clip p-1 opacity-100 transition-opacity select-none motion-reduce:transition-none',
+  'group/scrollbar flex touch-none overflow-clip p-1 opacity-100 transition-opacity select-none motion-reduce:transition-none',
   'pointer-events-none data-hovering:pointer-events-auto',
   'data-scrolling:pointer-events-auto',
   'data-[orientation=vertical]:absolute data-[orientation=vertical]:inset-y-0 data-[orientation=vertical]:w-3 data-[orientation=vertical]:justify-center',
@@ -36,6 +35,9 @@ const scrollAreaThumbClassName = cn(
   'shrink-0 rounded-sm bg-state-base-handle transition-[background-color] motion-reduce:transition-none',
   'data-[orientation=vertical]:w-1',
   'data-[orientation=horizontal]:h-1',
+  'group-data-hovering/scrollbar:bg-state-base-handle-hover',
+  'group-data-scrolling/scrollbar:bg-state-base-handle-hover',
+  'active:bg-state-base-handle-hover',
 )
 
 const scrollAreaViewportClassName = cn(
diff --git a/web/app/components/base/ui/select/index.tsx b/web/app/components/base/ui/select/index.tsx
index 5448379ce6..7de0088af4 100644
--- a/web/app/components/base/ui/select/index.tsx
+++ b/web/app/components/base/ui/select/index.tsx
@@ -1,9 +1,11 @@
 'use client'
 
+import type { VariantProps } from 'class-variance-authority'
 import type { ReactNode } from 'react'
 import type { Placement } from '@/app/components/base/ui/placement'
 import { Select as BaseSelect } from '@base-ui/react/select'
 import { cn } from '@langgenius/dify-ui/cn'
+import { cva } from 'class-variance-authority'
 import {
   overlayLabelClassName,
   overlaySeparatorClassName,
@@ -15,34 +17,43 @@ export const SelectValue = BaseSelect.Value
 /** @public */
 export const SelectGroup = BaseSelect.Group
 
-const selectSizeClassName: Record<string, string> = {
-  small: 'h-6 gap-px rounded-md px-2 py-1 system-xs-regular',
-  medium: 'h-8 gap-0.5 rounded-lg px-3 py-2 system-sm-regular',
-  large: 'h-9 gap-0.5 rounded-[10px] px-4 py-2 system-md-regular',
-}
+const selectTriggerVariants = cva(
+  [
+    'group flex w-full items-center border-0 bg-components-input-bg-normal text-left text-components-input-text-filled outline-hidden',
+    'hover:bg-state-base-hover-alt focus-visible:bg-state-base-hover-alt',
+    'data-placeholder:text-components-input-text-placeholder',
+    'data-readonly:cursor-default data-readonly:bg-transparent data-readonly:hover:bg-transparent',
+    'data-disabled:cursor-not-allowed data-disabled:bg-components-input-bg-disabled data-disabled:text-components-input-text-filled-disabled data-disabled:hover:bg-components-input-bg-disabled',
+    'data-disabled:data-placeholder:text-components-input-text-disabled',
+  ],
+  {
+    variants: {
+      size: {
+        small: 'h-6 gap-px rounded-md px-2 py-1 system-xs-regular',
+        medium: 'h-8 gap-0.5 rounded-lg px-3 py-2 system-sm-regular',
+        large: 'h-9 gap-0.5 rounded-[10px] px-4 py-2 system-md-regular',
+      },
+    },
+    defaultVariants: {
+      size: 'medium',
+    },
+  },
+)
 
-type SelectTriggerProps = BaseSelect.Trigger.Props & {
-  size?: 'small' | 'medium' | 'large'
-}
+type SelectTriggerProps
+  = Omit<BaseSelect.Trigger.Props, 'className'>
+    & VariantProps<typeof selectTriggerVariants>
+    & { className?: string }
 
 export function SelectTrigger({
   className,
   children,
-  size = 'medium',
+  size,
   ...props
 }: SelectTriggerProps) {
   return (
     <BaseSelect.Trigger
-      className={cn(
-        'group flex w-full items-center border-0 bg-components-input-bg-normal text-left text-components-input-text-filled outline-hidden',
-        'hover:bg-state-base-hover-alt focus-visible:bg-state-base-hover-alt',
-        'data-placeholder:text-components-input-text-placeholder',
-        selectSizeClassName[size],
-        'data-readonly:cursor-default data-readonly:bg-transparent data-readonly:hover:bg-transparent',
-        'data-disabled:cursor-not-allowed data-disabled:bg-components-input-bg-disabled data-disabled:text-components-input-text-filled-disabled data-disabled:hover:bg-components-input-bg-disabled',
-        'data-disabled:data-placeholder:text-components-input-text-disabled',
-        className,
-      )}
+      className={cn(selectTriggerVariants({ size, className }))}
       {...props}
     >
       <span className="min-w-0 grow truncate">
diff --git a/web/app/components/base/ui/slider/index.tsx b/web/app/components/base/ui/slider/index.tsx
index 931c4e88be..ad1bc0ba8f 100644
--- a/web/app/components/base/ui/slider/index.tsx
+++ b/web/app/components/base/ui/slider/index.tsx
@@ -2,16 +2,98 @@
 
 import { Slider as BaseSlider } from '@base-ui/react/slider'
 import { cn } from '@langgenius/dify-ui/cn'
-import * as React from 'react'
+
+/** @public */
+export const SliderRoot = BaseSlider.Root
 
 type SliderRootProps = BaseSlider.Root.Props<number>
+
+const sliderControlClassName = cn(
+  'relative flex h-5 w-full touch-none items-center select-none',
+  'data-disabled:cursor-not-allowed',
+)
+
+type SliderControlProps = BaseSlider.Control.Props
+
+/** @public */
+export function SliderControl({ className, ...props }: SliderControlProps) {
+  return (
+    <BaseSlider.Control
+      className={cn(sliderControlClassName, className)}
+      {...props}
+    />
+  )
+}
+
+const sliderTrackClassName = cn(
+  'relative h-1 w-full overflow-hidden rounded-full',
+  'bg-components-slider-track',
+)
+
+type SliderTrackProps = BaseSlider.Track.Props
+
+/** @public */
+export function SliderTrack({ className, ...props }: SliderTrackProps) {
+  return (
+    <BaseSlider.Track
+      className={cn(sliderTrackClassName, className)}
+      {...props}
+    />
+  )
+}
+
+const sliderIndicatorClassName = cn(
+  'h-full rounded-full',
+  'bg-components-slider-range',
+)
+
+type SliderIndicatorProps = BaseSlider.Indicator.Props
+
+/** @public */
+export function SliderIndicator({ className, ...props }: SliderIndicatorProps) {
+  return (
+    <BaseSlider.Indicator
+      className={cn(sliderIndicatorClassName, className)}
+      {...props}
+    />
+  )
+}
+
+const sliderThumbClassName = cn(
+  'block h-5 w-2 shrink-0 rounded-[3px] border-[0.5px]',
+  'border-components-slider-knob-border bg-components-slider-knob shadow-sm',
+  'transition-[background-color,border-color,box-shadow,opacity] motion-reduce:transition-none',
+  'hover:bg-components-slider-knob-hover',
+  'focus-visible:ring-2 focus-visible:ring-components-slider-knob-border-hover focus-visible:ring-offset-0 focus-visible:outline-hidden',
+  'active:shadow-md',
+  'group-data-disabled/slider:border-components-slider-knob-border group-data-disabled/slider:bg-components-slider-knob-disabled group-data-disabled/slider:shadow-none',
+)
+
 type SliderThumbProps = BaseSlider.Thumb.Props
 
+/** @public */
+export function SliderThumb({ className, ...props }: SliderThumbProps) {
+  return (
+    <BaseSlider.Thumb
+      className={cn(sliderThumbClassName, className)}
+      {...props}
+    />
+  )
+}
+
+type SliderSlotClassNames = {
+  control?: string
+  track?: string
+  indicator?: string
+  thumb?: string
+}
+
 type SliderBaseProps = Pick<
   SliderRootProps,
   'onValueChange' | 'min' | 'max' | 'step' | 'disabled' | 'name'
 > & Pick<SliderThumbProps, 'aria-label' | 'aria-labelledby'> & {
   className?: string
+  slotClassNames?: SliderSlotClassNames
 }
 
 type ControlledSliderProps = SliderBaseProps & {
@@ -27,30 +109,6 @@ type UncontrolledSliderProps = SliderBaseProps & {
 type SliderProps = ControlledSliderProps | UncontrolledSliderProps
 
 const sliderRootClassName = 'group/slider relative inline-flex w-full data-disabled:opacity-30'
-const sliderControlClassName = cn(
-  'relative flex h-5 w-full touch-none items-center select-none',
-  'data-disabled:cursor-not-allowed',
-)
-const sliderTrackClassName = cn(
-  'relative h-1 w-full overflow-hidden rounded-full',
-  'bg-(--slider-track,var(--color-components-slider-track))',
-)
-const sliderIndicatorClassName = cn(
-  'h-full rounded-full',
-  'bg-(--slider-range,var(--color-components-slider-range))',
-)
-const sliderThumbClassName = cn(
-  'block h-5 w-2 shrink-0 rounded-[3px] border-[0.5px]',
-  'border-(--slider-knob-border,var(--color-components-slider-knob-border))',
-  'bg-(--slider-knob,var(--color-components-slider-knob)) shadow-sm',
-  'transition-[background-color,border-color,box-shadow,opacity] motion-reduce:transition-none',
-  'hover:bg-(--slider-knob-hover,var(--color-components-slider-knob-hover))',
-  'focus-visible:ring-2 focus-visible:ring-components-slider-knob-border-hover focus-visible:ring-offset-0 focus-visible:outline-hidden',
-  'active:shadow-md',
-  'group-data-disabled/slider:bg-(--slider-knob-disabled,var(--color-components-slider-knob-disabled))',
-  'group-data-disabled/slider:border-(--slider-knob-border,var(--color-components-slider-knob-border))',
-  'group-data-disabled/slider:shadow-none',
-)
 
 const getSafeValue = (value: number | undefined, min: number) => {
   if (value === undefined)
@@ -69,11 +127,12 @@ export function Slider({
   disabled = false,
   name,
   className,
+  slotClassNames,
   'aria-label': ariaLabel,
   'aria-labelledby': ariaLabelledby,
 }: SliderProps) {
   return (
-    <BaseSlider.Root
+    <SliderRoot
       value={getSafeValue(value, min)}
       defaultValue={getSafeValue(defaultValue, min)}
       onValueChange={onValueChange}
@@ -85,16 +144,16 @@ export function Slider({
       thumbAlignment="edge-client-only"
       className={cn(sliderRootClassName, className)}
     >
-      <BaseSlider.Control className={sliderControlClassName}>
-        <BaseSlider.Track className={sliderTrackClassName}>
-          <BaseSlider.Indicator className={sliderIndicatorClassName} />
-        </BaseSlider.Track>
-        <BaseSlider.Thumb
+      <SliderControl className={slotClassNames?.control}>
+        <SliderTrack className={slotClassNames?.track}>
+          <SliderIndicator className={slotClassNames?.indicator} />
+        </SliderTrack>
+        <SliderThumb
           aria-label={ariaLabel}
           aria-labelledby={ariaLabelledby}
-          className={sliderThumbClassName}
+          className={slotClassNames?.thumb}
         />
-      </BaseSlider.Control>
-    </BaseSlider.Root>
+      </SliderControl>
+    </SliderRoot>
   )
 }
diff --git a/web/app/components/billing/pricing/index.tsx b/web/app/components/billing/pricing/index.tsx
index 0873b2dea4..6b943bde7d 100644
--- a/web/app/components/billing/pricing/index.tsx
+++ b/web/app/components/billing/pricing/index.tsx
@@ -28,7 +28,7 @@ type PricingProps = {
 }
 
 const pricingScrollAreaClassNames = {
-  root: 'relative h-full w-full overflow-hidden [--scroll-area-edge-hint-bg:var(--color-saas-background)]',
+  root: 'relative h-full w-full overflow-hidden',
   viewport: 'overscroll-contain',
   content: 'min-h-full min-w-[1200px]',
   verticalScrollbar: 'data-[orientation=vertical]:my-2 data-[orientation=vertical]:me-1',
diff --git a/web/app/components/header/account-setting/menu-dialog.tsx b/web/app/components/header/account-setting/menu-dialog.tsx
index ae2be362fb..f1a0307b0d 100644
--- a/web/app/components/header/account-setting/menu-dialog.tsx
+++ b/web/app/components/header/account-setting/menu-dialog.tsx
@@ -27,7 +27,7 @@ const MenuDialog = ({
       }}
     >
       <DialogContent
-        overlayClassName="bg-transparent"
+        backdropClassName="bg-transparent"
         className={cn(
           'top-0 left-0 h-full max-h-none w-full max-w-none translate-x-0 translate-y-0 overflow-hidden rounded-none border-none bg-background-sidenav-bg p-0 shadow-none backdrop-blur-md',
           className,
diff --git a/web/app/components/workflow-app/components/workflow-onboarding-modal/index.tsx b/web/app/components/workflow-app/components/workflow-onboarding-modal/index.tsx
index d124705cf1..36a8e6f7fc 100644
--- a/web/app/components/workflow-app/components/workflow-onboarding-modal/index.tsx
+++ b/web/app/components/workflow-app/components/workflow-onboarding-modal/index.tsx
@@ -24,7 +24,7 @@ const WorkflowOnboardingModal: FC<WorkflowOnboardingModalProps> = ({
     <Dialog open={isShow} onOpenChange={onClose} disablePointerDismissal>
       <DialogContent
         className="w-[618px] max-w-[618px] rounded-2xl border border-effects-highlight bg-background-default-subtle shadow-lg"
-        overlayClassName="bg-workflow-canvas-canvas-overlay"
+        backdropClassName="bg-workflow-canvas-canvas-overlay"
       >
         <DialogCloseButton />