diff --git a/pages/Base64Converter/Base64ConverterSection.tsx b/pages/Base64Converter/Base64ConverterSection.tsx
index 3cc0d4e..8639af9 100644
--- a/pages/Base64Converter/Base64ConverterSection.tsx
+++ b/pages/Base64Converter/Base64ConverterSection.tsx
@@ -57,7 +57,7 @@ export default function Base64ConverterSection({ mode }: Base64ConverterSectionP
   };
 
   return (
-    <div className="w-full flex flex-col space-y-4 animate-in fade-in duration-300">
+    <div className="w-full flex flex-col space-y-4">
       <div className="flex h-11 items-center px-1.5 bg-secondary/40 rounded-xl border border-border/60 w-fit">
         <SwitchButtonGroup
           value={direction}
@@ -86,7 +86,7 @@ export default function Base64ConverterSection({ mode }: Base64ConverterSectionP
             }}
             onClick={() => fileInputRef.current?.click()}
             className={cn(
-              'flex flex-col items-center justify-center min-h-[190px] border-2 border-dashed rounded-2xl p-8 cursor-pointer transition-all duration-300',
+              'flex flex-col items-center justify-center min-h-[190px] border-2 border-dashed rounded-2xl p-8 cursor-pointer',
               isDragging
                 ? 'border-primary bg-primary/10'
                 : info
@@ -107,7 +107,7 @@ export default function Base64ConverterSection({ mode }: Base64ConverterSectionP
             {isLoading ? (
               <div className="w-9 h-9 border-3 border-primary/20 border-t-primary rounded-full animate-spin" />
             ) : info ? (
-              <div className="flex flex-col items-center gap-1.5 text-center w-full animate-in fade-in duration-200">
+              <div className="flex flex-col items-center gap-1.5 text-center w-full">
                 {mode === 'image' && result && (
                   <div className="relative p-1 border border-border bg-background rounded-lg shadow-sm mb-1 max-w-[180px] overflow-hidden">
                     <img
@@ -117,9 +117,7 @@ export default function Base64ConverterSection({ mode }: Base64ConverterSectionP
                     />
                   </div>
                 )}
-                <Upload
-                  className={cn('w-8 h-8 text-primary', mode === 'file' && 'animate-bounce')}
-                />
+                <Upload className={cn('w-8 h-8 text-primary')} />
                 <span className="text-sm font-bold text-foreground/90 max-w-[280px] truncate">
                   {info.name}
                 </span>
diff --git a/pages/Base64Converter/FileMode.tsx b/pages/Base64Converter/FileMode.tsx
index c331fac..d40fd41 100644
--- a/pages/Base64Converter/FileMode.tsx
+++ b/pages/Base64Converter/FileMode.tsx
@@ -45,7 +45,7 @@ export default function FileMode() {
   };
 
   return (
-    <div className="w-full flex flex-col space-y-4 animate-in fade-in duration-300">
+    <div className="w-full flex flex-col space-y-4">
       <div className="flex h-11 items-center px-1.5 bg-secondary/40 rounded-xl border border-border/60 w-fit">
         <SwitchButtonGroup
           value={direction}
@@ -79,7 +79,7 @@ export default function FileMode() {
             }}
             onClick={() => fileInputRef.current?.click()}
             className={cn(
-              'flex flex-col items-center justify-center min-h-[190px] border-2 border-dashed rounded-2xl p-8 cursor-pointer transition-all duration-300',
+              'flex flex-col items-center justify-center min-h-[190px] border-2 border-dashed rounded-2xl p-8 cursor-pointer',
               isDragging
                 ? 'border-primary bg-primary/10'
                 : info
@@ -100,7 +100,7 @@ export default function FileMode() {
               <div className="w-9 h-9 border-3 border-primary/20 border-t-primary rounded-full animate-spin" />
             ) : info ? (
               <div className="flex flex-col items-center gap-1.5 text-center">
-                <Upload className="w-8 h-8 text-primary animate-bounce" />
+                <Upload className="w-8 h-8 text-primary" />
                 <span className="text-sm font-bold text-foreground/90 max-w-[280px] truncate">
                   {info.name}
                 </span>
diff --git a/pages/Base64Converter/ImageMode.tsx b/pages/Base64Converter/ImageMode.tsx
index a61285a..eafb0c3 100644
--- a/pages/Base64Converter/ImageMode.tsx
+++ b/pages/Base64Converter/ImageMode.tsx
@@ -52,7 +52,7 @@ export default function ImageMode() {
   };
 
   return (
-    <div className="w-full flex flex-col space-y-4 animate-in fade-in duration-300">
+    <div className="w-full flex flex-col space-y-4">
       <div className="flex h-11 items-center px-1.5 bg-secondary/40 rounded-xl border border-border/60 w-fit">
         <SwitchButtonGroup
           value={direction}
@@ -82,7 +82,7 @@ export default function ImageMode() {
             }}
             onClick={() => fileInputRef.current?.click()}
             className={cn(
-              'flex flex-col items-center justify-center min-h-[190px] border-2 border-dashed rounded-2xl p-8 cursor-pointer transition-all duration-300',
+              'flex flex-col items-center justify-center min-h-[190px] border-2 border-dashed rounded-2xl p-8 cursor-pointer',
               isDragging
                 ? 'border-primary bg-primary/10'
                 : info
@@ -103,7 +103,7 @@ export default function ImageMode() {
             {isLoading ? (
               <div className="w-9 h-9 border-3 border-primary/20 border-t-primary rounded-full animate-spin" />
             ) : info ? (
-              <div className="flex flex-col items-center gap-1.5 text-center animate-in fade-in duration-200 w-full">
+              <div className="flex flex-col items-center gap-1.5 text-center w-full">
                 {result && (
                   <div className="relative p-1 border border-border bg-background rounded-lg shadow-sm mb-1 max-w-[180px] overflow-hidden">
                     <img
@@ -233,7 +233,7 @@ export default function ImageMode() {
             onClear={resetAll}
           />
           {decoded && (
-            <div className="animate-in slide-in-from-bottom-2 duration-300">
+            <div>
               <DecodeResultPaper
                 title={t('decodedImageOutput')}
                 mimeType={decoded.mimeType}
diff --git a/pages/Base64Converter/TextMode.tsx b/pages/Base64Converter/TextMode.tsx
index 3c34e72..015092a 100644
--- a/pages/Base64Converter/TextMode.tsx
+++ b/pages/Base64Converter/TextMode.tsx
@@ -93,7 +93,7 @@ export default function TextMode({ onSwitchToImageMode }: TextModeProps = {}) {
   };
 
   return (
-    <div className="w-full flex flex-col space-y-4 animate-in fade-in duration-300">
+    <div className="w-full flex flex-col space-y-4">
       {/* 受控方向切流中枢 */}
       <div className="flex h-11 items-center px-1.5 bg-secondary/40 rounded-xl border border-border/60 w-fit">
         <SwitchButtonGroup
@@ -125,7 +125,7 @@ export default function TextMode({ onSwitchToImageMode }: TextModeProps = {}) {
         - 完美向全站 shadcn 暗黑生态看齐，采用标准的 bg-primary/10 混合变体。
       */}
       {showImageHint && (
-        <div className="flex items-center justify-between p-3.5 rounded-xl bg-primary/10 border border-primary/20 animate-in slide-in-from-top-1 duration-200">
+        <div className="flex items-center justify-between p-3.5 rounded-xl bg-primary/10 border border-primary/20">
           <span className="text-xs font-semibold text-primary tracking-tight">
             {t('imageDataUriHint')}
           </span>
@@ -134,7 +134,7 @@ export default function TextMode({ onSwitchToImageMode }: TextModeProps = {}) {
             variant="ghost"
             size="sm"
             onClick={onSwitchToImageMode}
-            className="h-7 rounded-md text-xs font-bold text-primary hover:text-primary hover:bg-primary/20 dark:hover:bg-primary/10 transition-colors px-2.5"
+            className="h-7 rounded-md text-xs font-bold text-primary hover:text-primary hover:bg-primary/20 dark:hover:bg-primary/10 px-2.5"
           >
             {t('switchToImageMode')}
           </Button>
@@ -143,7 +143,7 @@ export default function TextMode({ onSwitchToImageMode }: TextModeProps = {}) {
 
       {/* 5. 编码/解码核心数据承载流卡片 */}
       {output && (
-        <div className="p-4 rounded-2xl bg-card border border-border shadow-sm flex flex-col space-y-3 animate-in slide-in-from-bottom-2 duration-300">
+        <div className="p-4 rounded-2xl bg-card border border-border shadow-sm flex flex-col space-y-3">
           <div className="flex justify-between items-center select-none">
             <span className="text-[10px] font-bold uppercase tracking-wider text-muted-foreground/90">
               {outputLabel}
diff --git a/pages/Base64Converter/index.tsx b/pages/Base64Converter/index.tsx
index 5b53d44..dadb075 100644
--- a/pages/Base64Converter/index.tsx
+++ b/pages/Base64Converter/index.tsx
@@ -20,7 +20,7 @@ export default function Index() {
   );
 
   return (
-    <div className="p-4 w-full flex flex-col space-y-4 min-h-[520px] select-none animate-in fade-in duration-300">
+    <div className="p-4 w-full flex flex-col space-y-4 min-h-[520px] select-none">
       <SwitchButtonGroup
         value={pageMode}
         options={[
diff --git a/pages/Dashboard/ToolCard.tsx b/pages/Dashboard/ToolCard.tsx
index f2b2fab..08b4819 100644
--- a/pages/Dashboard/ToolCard.tsx
+++ b/pages/Dashboard/ToolCard.tsx
@@ -46,7 +46,6 @@ export default function ToolCard({
       */
       className={cn(
         'group relative rounded-xl border border-border/70 bg-card text-card-foreground p-4 h-auto flex flex-col items-stretch justify-start gap-3 shadow-sm select-none box-border',
-        'transition-all duration-300 ease-[cubic-bezier(0.4,0,0.2,1)]',
         'hover:bg-muted/30',
         'hover:border-[rgba(var(--tool-color),0.45)]',
         'hover:shadow-[0_8px_24px_-8px_rgba(var(--tool-color),0.14)] dark:hover:shadow-[0_8px_30px_-10px_rgba(var(--tool-color),0.25)]',
@@ -60,7 +59,7 @@ export default function ToolCard({
           {/* 左侧圆形图标容器 */}
           <div
             className={cn(
-              'flex items-center justify-center w-10 h-10 rounded-xl shrink-0 transition-colors duration-300',
+              'flex items-center justify-center w-10 h-10 rounded-xl shrink-0',
               'bg-[rgba(var(--tool-color),0.08)] dark:bg-[rgba(var(--tool-color),0.12)]',
               'text-[rgb(var(--tool-color))]',
             )}
@@ -82,7 +81,7 @@ export default function ToolCard({
         </div>
 
         {/* 右侧指示小箭头 */}
-        <div className="text-muted-foreground/40 group-hover:text-[rgb(var(--tool-color))] p-1 shrink-0 transition-all duration-300 ease-in-out group-hover:translate-x-0.5">
+        <div className="text-muted-foreground/40 group-hover:text-[rgb(var(--tool-color))] p-1 shrink-0 group-hover:translate-x-0.5">
           <ChevronRight className="h-4 w-4" />
         </div>
 
diff --git a/pages/Dashboard/index.tsx b/pages/Dashboard/index.tsx
index 2a413ab..8479dda 100644
--- a/pages/Dashboard/index.tsx
+++ b/pages/Dashboard/index.tsx
@@ -16,7 +16,7 @@ export default function DashboardPage() {
     <div
       className={cn(
         'grid grid-cols-1 sm:grid-cols-[repeat(auto-fill,minmax(290px,1fr))] auto-rows-auto gap-3.5 p-3.5 w-full h-auto',
-        'animate-in fade-in duration-300 select-none',
+        'select-none',
       )}
     >
       {pageOrder.map((key) => {
diff --git a/pages/HtmlToMarkdown/index.tsx b/pages/HtmlToMarkdown/index.tsx
index aab869b..f860989 100644
--- a/pages/HtmlToMarkdown/index.tsx
+++ b/pages/HtmlToMarkdown/index.tsx
@@ -49,7 +49,7 @@ export default function HtmlToMarkdownPage() {
       - 彻底清除多余的 container max-w-7xl 这种网页大边距，
       - 统一收拢为我们先前在 Dashboard 页、JSON 工具箱制定的 p-4 space-y-4 标准极客桌面规格。
     */
-    <div className="p-4 w-full flex flex-col space-y-4 select-none animate-in fade-in duration-300">
+    <div className="p-4 w-full flex flex-col space-y-4 select-none">
       <div className="flex flex-col gap-4">
         {/* 工具栏集成区 */}
         <div className="flex flex-col sm:flex-row gap-3 justify-between items-stretch sm:items-center bg-secondary/40 rounded-xl border border-border/60 px-1.5 py-1.5 sm:h-12">
@@ -72,7 +72,7 @@ export default function HtmlToMarkdownPage() {
               size="sm"
               onClick={handleDownload}
               disabled={!result.markdown}
-              className="h-8 rounded-md font-medium text-xs gap-1.5 shadow-sm active:scale-95 transition-all"
+              className="h-8 rounded-md font-medium text-xs gap-1.5 shadow-sm"
             >
               <Download className="h-3.5 w-3.5" />
               {t('download')}
@@ -83,7 +83,7 @@ export default function HtmlToMarkdownPage() {
               variant="outline"
               size="sm"
               onClick={handleClear}
-              className="h-8 rounded-md font-medium text-xs gap-1.5 shadow-sm active:scale-95 text-destructive hover:text-destructive hover:bg-destructive/5 dark:hover:bg-destructive/10 border-input/60 transition-all"
+              className="h-8 rounded-md font-medium text-xs gap-1.5 shadow-sm text-destructive hover:text-destructive hover:bg-destructive/5 dark:hover:bg-destructive/10 border-input/60"
             >
               <Trash2 className="h-3.5 w-3.5" />
               {t('clear')}
@@ -95,7 +95,7 @@ export default function HtmlToMarkdownPage() {
           - 💡 核心修复点：将硬编码的 bg-red-50 实色，完美超进化为系统的全自适应透明色变体
         */}
         {error && (
-          <div className="p-3.5 bg-destructive/10 border border-destructive/20 rounded-xl text-destructive text-xs font-semibold tracking-wide animate-in shake duration-300">
+          <div className="p-3.5 bg-destructive/10 border border-destructive/20 rounded-xl text-destructive text-xs font-semibold tracking-wide">
             {error}
           </div>
         )}
@@ -114,7 +114,7 @@ export default function HtmlToMarkdownPage() {
               - 只要用户用鼠标点击了内部的 textarea，外层整块精巧的圆角大边框会一帧内亮起 primary 系统的深色呼吸发光环，
               - 这种“全外包裹层框聚焦”的体验极大模仿了本地原生 IDE 的硬核专业体验！
             */
-            <div className="border border-border rounded-xl bg-card text-card-foreground shadow-sm overflow-hidden flex flex-col transition-all duration-200 focus-within:ring-1 focus-within:ring-ring focus-within:border-ring">
+            <div className="border border-border rounded-xl bg-card text-card-foreground shadow-sm overflow-hidden flex flex-col focus-within:ring-1 focus-within:ring-ring focus-within:border-ring">
               {/* 卡片头部：改用标准的灰色 bg-muted/50 */}
               <div className="flex h-9 items-center justify-between px-4 bg-muted/50 border-b border-border select-none">
                 <span className="text-[10px] font-bold text-muted-foreground/90 uppercase tracking-wider">
diff --git a/pages/JsonTools/DiffNavigator.tsx b/pages/JsonTools/DiffNavigator.tsx
index 353b3f4..2ee84f3 100644
--- a/pages/JsonTools/DiffNavigator.tsx
+++ b/pages/JsonTools/DiffNavigator.tsx
@@ -30,7 +30,7 @@ export default function DiffNavigator({
     return (
       <div
         className={cn(
-          'flex items-center justify-center gap-3 px-4 py-2 rounded-lg border border-border bg-muted/30 select-none animate-in fade-in duration-200',
+          'flex items-center justify-center gap-3 px-4 py-2 rounded-lg border border-border bg-muted/30 select-none',
           className,
         )}
         {...props}
@@ -60,9 +60,9 @@ export default function DiffNavigator({
         aria-label={t('jsonDiff:previousDiff')}
         onClick={onPrev}
         className={cn(
-          'p-1 rounded-md text-muted-foreground transition-all hover:bg-accent hover:text-foreground',
+          'p-1 rounded-md text-muted-foreground hover:bg-accent hover:text-foreground',
           'focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring',
-          'disabled:pointer-events-none disabled:opacity-30 active:scale-95', // 4. 边界拦截：触顶时优雅淡化并锁死点击
+          'disabled:pointer-events-none disabled:opacity-30', // 4. 边界拦截：触顶时优雅淡化并锁死点击
         )}
       >
         <ChevronLeft className="h-4 w-4" />
@@ -81,9 +81,9 @@ export default function DiffNavigator({
         aria-label={t('jsonDiff:nextDiff')}
         onClick={onNext}
         className={cn(
-          'p-1 rounded-md text-muted-foreground transition-all hover:bg-accent hover:text-foreground',
+          'p-1 rounded-md text-muted-foreground hover:bg-accent hover:text-foreground',
           'focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring',
-          'disabled:pointer-events-none disabled:opacity-30 active:scale-95', // 4. 边界拦截：触底时优雅淡化并锁死点击
+          'disabled:pointer-events-none disabled:opacity-30', // 4. 边界拦截：触底时优雅淡化并锁死点击
         )}
       >
         <ChevronRight className="h-4 w-4" />
diff --git a/pages/JsonTools/DiffResult.tsx b/pages/JsonTools/DiffResult.tsx
index e254446..08ec54b 100644
--- a/pages/JsonTools/DiffResult.tsx
+++ b/pages/JsonTools/DiffResult.tsx
@@ -197,7 +197,7 @@ const UnifiedRow = ({ depth, type, text, active, multiline }: UnifiedRowProps) =
   return (
     <div
       className={cn(
-        'flex items-start w-full font-mono py-0.5 select-text group transition-colors',
+        'flex items-start w-full font-mono py-0.5 select-text group',
         currentTheme.bg,
         currentTheme.text,
         // 4. 高亮定位条：不再使用生硬的蓝圆环，改为现代编辑器的“侧边左高亮带”设计，质感直接拉满
diff --git a/pages/JsonTools/JsonConvertSection.tsx b/pages/JsonTools/JsonConvertSection.tsx
index 0a522a5..8abd951 100644
--- a/pages/JsonTools/JsonConvertSection.tsx
+++ b/pages/JsonTools/JsonConvertSection.tsx
@@ -74,10 +74,7 @@ export default function JsonConvertSection({
       : null;
 
   return (
-    <div
-      className={cn('w-full flex flex-col gap-4 animate-in fade-in duration-300', className)}
-      {...props}
-    >
+    <div className={cn('w-full flex flex-col gap-4', className)} {...props}>
       {/* 输入区 */}
       <TextInputArea
         placeholder={t(`jsonFormat:${pk}InputPlaceholder`)}
@@ -93,7 +90,7 @@ export default function JsonConvertSection({
 
       {/* 4. 结果展示或状态引导卡片区 */}
       {result && result.output ? (
-        <div className="relative rounded-xl border border-border bg-card text-card-foreground shadow-sm overflow-hidden animate-in slide-in-from-bottom-2 duration-300">
+        <div className="relative rounded-xl border border-border bg-card text-card-foreground shadow-sm overflow-hidden">
           {/* 结果栏精致头部 */}
           <div className="flex h-9 items-center justify-between px-4 border-b border-border bg-muted/50 select-none">
             <div className="flex gap-4 items-center">
diff --git a/pages/JsonTools/JsonFormatSection.tsx b/pages/JsonTools/JsonFormatSection.tsx
index e1f3aa0..bc4b091 100644
--- a/pages/JsonTools/JsonFormatSection.tsx
+++ b/pages/JsonTools/JsonFormatSection.tsx
@@ -62,7 +62,7 @@ export default function JsonFormatSection() {
       : null;
 
   return (
-    <div className="w-full flex flex-col gap-4 animate-in fade-in duration-300">
+    <div className="w-full flex flex-col gap-4">
       {/* 工具控制栏 */}
       <div className="flex h-10 items-center justify-between px-1.5 bg-secondary/40 rounded-xl border border-border/60">
         <div className="flex gap-4 items-center w-full">
@@ -95,7 +95,7 @@ export default function JsonFormatSection() {
             />
             <Label
               htmlFor="sort-keys-checkbox"
-              className="text-xs font-bold text-foreground/80 cursor-pointer tracking-tight group-hover:text-foreground transition-colors"
+              className="text-xs font-bold text-foreground/80 cursor-pointer tracking-tight group-hover:text-foreground"
             >
               {t('jsonFormat:sortKeys')}
             </Label>
@@ -118,7 +118,7 @@ export default function JsonFormatSection() {
 
       {/* 格式化结果流面板展示 */}
       {result && result.formatted ? (
-        <div className="relative rounded-xl border border-border bg-card text-card-foreground shadow-sm overflow-hidden animate-in slide-in-from-bottom-2 duration-300">
+        <div className="relative rounded-xl border border-border bg-card text-card-foreground shadow-sm overflow-hidden">
           {/* 结果栏头部 */}
           <div className="flex h-9 items-center justify-between px-4 border-b border-border bg-muted/50 select-none">
             <div className="flex gap-4 items-center">
diff --git a/pages/JsonTools/JsonTree.tsx b/pages/JsonTools/JsonTree.tsx
index fcd3f0d..597791d 100644
--- a/pages/JsonTools/JsonTree.tsx
+++ b/pages/JsonTools/JsonTree.tsx
@@ -135,7 +135,7 @@ const NodeRow = React.memo(
           <div
             onClick={() => setOverride(expanded ? 'closed' : 'open')}
             className={cn(
-              'group flex items-center gap-1 py-0.5 pr-2 text-xs font-mono select-none cursor-pointer rounded-sm transition-colors w-full h-[22px] leading-relaxed',
+              'group flex items-center gap-1 py-0.5 pr-2 text-xs font-mono select-none cursor-pointer rounded-sm w-full h-[22px] leading-relaxed',
               theme.bg,
               isActive &&
                 'bg-primary/10 relative before:absolute before:left-0 before:top-0 before:bottom-0 before:w-0.5 before:bg-blue-500 rounded-none ring-0',
@@ -207,7 +207,7 @@ const NodeRow = React.memo(
       <div
         ref={rowRef}
         className={cn(
-          'flex items-center gap-1 py-0.5 pr-2 font-mono text-xs w-full h-[22px] leading-relaxed rounded-sm transition-colors',
+          'flex items-center gap-1 py-0.5 pr-2 font-mono text-xs w-full h-[22px] leading-relaxed rounded-sm',
           theme.bg,
           isActive &&
             'bg-primary/10 relative before:absolute before:left-0 before:top-0 before:bottom-0 before:w-0.5 before:bg-blue-500 rounded-none ring-0',
diff --git a/pages/JsonTools/index.tsx b/pages/JsonTools/index.tsx
index e808363..c5f7079 100644
--- a/pages/JsonTools/index.tsx
+++ b/pages/JsonTools/index.tsx
@@ -113,7 +113,7 @@ export default function Index() {
   }, []);
 
   return (
-    <div className="p-4 w-full flex flex-col space-y-4 min-h-[500px] select-none animate-in fade-in duration-300">
+    <div className="p-4 w-full flex flex-col space-y-4 min-h-[500px] select-none">
       <SwitchButtonGroup
         value={pageMode}
         onChange={(v: PageMode) => setPageMode(v)}
@@ -129,7 +129,7 @@ export default function Index() {
       />
 
       {pageMode === 'diff' ? (
-        <div className="flex flex-col space-y-4 animate-in fade-in duration-200">
+        <div className="flex flex-col space-y-4">
           <div className="flex h-10 items-center justify-between px-1.5 bg-secondary/40 rounded-xl border border-border/60">
             <SwitchButtonGroup
               value={viewMode}
diff --git a/pages/Jwt/index.tsx b/pages/Jwt/index.tsx
index 189c0c7..4c4604b 100644
--- a/pages/Jwt/index.tsx
+++ b/pages/Jwt/index.tsx
@@ -17,9 +17,7 @@ interface SectionProps {
 const Section = ({ title, content, colorClass, bgClass, borderClass }: SectionProps) => {
   const { t } = useLazyTranslation('jwt');
   return (
-    <div
-      className={cn('p-4 rounded-xl border border-solid transition-colors', bgClass, borderClass)}
-    >
+    <div className={cn('p-4 rounded-xl border border-solid', bgClass, borderClass)}>
       <div className="flex justify-between items-center mb-2 select-none">
         <span className={cn('text-xs font-bold tracking-wider uppercase', colorClass)}>
           {title}
@@ -70,7 +68,7 @@ export default function Index() {
   }, [debouncedInput]);
 
   return (
-    <div className="p-4 w-full flex flex-col space-y-4 animate-in fade-in duration-300 select-none">
+    <div className="p-4 w-full flex flex-col space-y-4 select-none">
       <div className="flex flex-col gap-4">
         {/* 输入终端 */}
         <TextInputArea
@@ -90,7 +88,7 @@ export default function Index() {
 
         {/* 解码看板结果展现 */}
         {result && !result.error && (
-          <div className="flex flex-col gap-4 animate-in slide-in-from-bottom-2 duration-300">
+          <div className="flex flex-col gap-4">
             {/* Header 分区：完美致敬 JWT.io 的鲜艳色彩，同时实现黑夜暗化自适应 */}
             <Section
               title={t('jwt:headerTitle')}
@@ -110,7 +108,7 @@ export default function Index() {
             />
 
             {/* Signature 签名区：完全对齐标准的 shadcn 骨架阶度 */}
-            <div className="p-4 rounded-xl border border-border bg-secondary/40 shadow-sm transition-colors">
+            <div className="p-4 rounded-xl border border-border bg-secondary/40 shadow-sm">
               <div className="flex justify-between items-center mb-2">
                 <span className="text-xs font-bold tracking-wider text-muted-foreground/90 uppercase">
                   {t('jwt:signatureTitle')}
diff --git a/pages/MarkdownToHtml/index.tsx b/pages/MarkdownToHtml/index.tsx
index b27cfa3..a43eda3 100644
--- a/pages/MarkdownToHtml/index.tsx
+++ b/pages/MarkdownToHtml/index.tsx
@@ -175,7 +175,7 @@ export default function MarkdownToHtmlPage() {
   const showPreview = previewMode !== 'html';
 
   return (
-    <div className="p-4 w-full flex flex-col space-y-4 select-none animate-in fade-in duration-300">
+    <div className="p-4 w-full flex flex-col space-y-4 select-none">
       <div className="flex flex-col space-y-4">
         {/* 工具集成控制中枢 */}
         <div className="flex flex-col sm:flex-row gap-3 justify-between items-stretch sm:items-center bg-secondary/40 rounded-xl border border-border/60 px-1.5 py-1.5 sm:h-12">
@@ -196,7 +196,7 @@ export default function MarkdownToHtmlPage() {
               variant="outline"
               size="sm"
               onClick={handleClear}
-              className="h-8 rounded-md font-medium text-xs gap-1.5 shadow-sm active:scale-95 text-destructive hover:text-destructive hover:bg-destructive/5 dark:hover:bg-destructive/10 border-input/60 transition-all"
+              className="h-8 rounded-md font-medium text-xs gap-1.5 shadow-sm text-destructive hover:text-destructive hover:bg-destructive/5 dark:hover:bg-destructive/10 border-input/60"
             >
               <Trash2 className="h-3.5 w-3.5" />
               {t('clear')}
@@ -206,7 +206,7 @@ export default function MarkdownToHtmlPage() {
               size="sm"
               onClick={handlePrint}
               disabled={!result.html}
-              className="h-8 rounded-md font-medium text-xs gap-1.5 shadow-sm active:scale-95 transition-all"
+              className="h-8 rounded-md font-medium text-xs gap-1.5 shadow-sm"
             >
               <Printer className="h-3.5 w-3.5" />
               {t('print')}
@@ -216,7 +216,7 @@ export default function MarkdownToHtmlPage() {
               size="sm"
               onClick={handleDownload}
               disabled={!result.html}
-              className="h-8 rounded-md font-medium text-xs gap-1.5 shadow-sm active:scale-95 transition-all"
+              className="h-8 rounded-md font-medium text-xs gap-1.5 shadow-sm"
             >
               <Download className="h-3.5 w-3.5" />
               {t('download')}
@@ -228,7 +228,7 @@ export default function MarkdownToHtmlPage() {
         {error && (
           <div
             role="alert"
-            className="p-3.5 bg-destructive/10 border border-destructive/20 rounded-xl text-destructive text-xs font-semibold tracking-wide animate-in shake duration-300"
+            className="p-3.5 bg-destructive/10 border border-destructive/20 rounded-xl text-destructive text-xs font-semibold tracking-wide"
           >
             {error}
           </div>
@@ -243,7 +243,7 @@ export default function MarkdownToHtmlPage() {
         >
           {/* Markdown 输入翼终端 */}
           {showInput && (
-            <div className="border border-border rounded-xl bg-card text-card-foreground shadow-sm overflow-hidden flex flex-col transition-all duration-200 focus-within:ring-1 focus-within:ring-ring focus-within:border-ring animate-in fade-in">
+            <div className="border border-border rounded-xl bg-card text-card-foreground shadow-sm overflow-hidden flex flex-col focus-within:ring-1 focus-within:ring-ring focus-within:border-ring">
               <div className="flex h-9 items-center justify-between px-4 bg-muted/50 border-b border-border select-none">
                 <span className="text-[10px] font-bold text-muted-foreground/90 uppercase tracking-wider">
                   {t('inputLabel')}
@@ -263,7 +263,7 @@ export default function MarkdownToHtmlPage() {
 
           {/* 实时 HTML/Iframe 预览翼终端 */}
           {showPreview && (
-            <div className="border border-border rounded-xl bg-card text-card-foreground shadow-sm overflow-hidden flex flex-col animate-in fade-in">
+            <div className="border border-border rounded-xl bg-card text-card-foreground shadow-sm overflow-hidden flex flex-col">
               <div className="flex h-9 items-center justify-between px-4 bg-muted/50 border-b border-border select-none">
                 <span className="text-[10px] font-bold text-muted-foreground/90 uppercase tracking-wider">
                   {(previewMode as string) === 'html' ? t('htmlOutputLabel') : t('previewLabel')}
diff --git a/pages/QrCode/components/GeneratePanel.tsx b/pages/QrCode/components/GeneratePanel.tsx
index f3eceec..e9f5243 100644
--- a/pages/QrCode/components/GeneratePanel.tsx
+++ b/pages/QrCode/components/GeneratePanel.tsx
@@ -10,11 +10,11 @@ export default function GeneratePanel() {
   const { generatorState, setTextToEncode, downloadQrCode, copyQrCode } = useQrCodeContext();
 
   return (
-    <div className="grid grid-cols-1 md:grid-cols-2 gap-6 w-full items-stretch select-none p-0.5 animate-in fade-in duration-300">
+    <div className="grid grid-cols-1 md:grid-cols-2 gap-6 w-full items-stretch select-none p-0.5">
       {/* 左翼：高性能受控输入翼终端 */}
       <div
         className={cn(
-          'border border-border rounded-xl bg-card text-card-foreground shadow-sm flex flex-col p-4 transition-all duration-200',
+          'border border-border rounded-xl bg-card text-card-foreground shadow-sm flex flex-col p-4',
           'focus-within:ring-1 focus-within:ring-ring focus-within:border-ring',
         )}
       >
diff --git a/pages/QrCode/components/ParsePanel.tsx b/pages/QrCode/components/ParsePanel.tsx
index 80a138f..cd97651 100644
--- a/pages/QrCode/components/ParsePanel.tsx
+++ b/pages/QrCode/components/ParsePanel.tsx
@@ -61,7 +61,7 @@ export default function ParsePanel() {
     /* 💡 统一大视觉轴：
        - 追加 p-0.5 微隔离，配合 gap-6 建立与生成面板（GeneratePanel）绝对像素对齐的网格天平。
     */
-    <div className="grid grid-cols-1 md:grid-cols-2 gap-6 w-full items-stretch select-none p-0.5 animate-in fade-in duration-300">
+    <div className="grid grid-cols-1 md:grid-cols-2 gap-6 w-full items-stretch select-none p-0.5">
       {/* 左翼：图片接收/拖拽/剪贴板上传终端 */}
       <div className="flex flex-col h-full">
         <ImageUploader
@@ -78,7 +78,7 @@ export default function ParsePanel() {
       {/* 右翼：高阶解析出码只读终端 */}
       <div
         className={cn(
-          'border border-border rounded-xl bg-card text-card-foreground shadow-sm flex flex-col p-4 transition-all duration-200',
+          'border border-border rounded-xl bg-card text-card-foreground shadow-sm flex flex-col p-4',
           // 💡 视觉对称增强：加入相同的聚焦变量环联动，使双翼权重达成完美绝对平衡
           'focus-within:ring-1 focus-within:ring-ring focus-within:border-ring',
         )}
diff --git a/pages/QrCode/index.tsx b/pages/QrCode/index.tsx
index cd2713b..4c8d3ca 100644
--- a/pages/QrCode/index.tsx
+++ b/pages/QrCode/index.tsx
@@ -23,7 +23,7 @@ export default function Index() {
          - 彻底剥离破坏流式宽度的 max-w-[400px] 枷锁，开启标准的 w-full 全自适应包裹。
          - 替换为标准的 p-4 呼吸内边距配合 flex flex-col space-y-4，接管系统级重排！
       */}
-      <div className="p-4 w-full flex flex-col space-y-4 min-h-[500px] select-none animate-in fade-in duration-300">
+      <div className="p-4 w-full flex flex-col space-y-4 min-h-[500px] select-none">
         {/* 流式中央控制切流卡：注入 sm 断点防御，防范单栏状态下发生变形 */}
         <div className="w-full sm:w-fit pt-0.5">
           <SwitchButtonGroup
@@ -40,11 +40,11 @@ export default function Index() {
         */}
         <div className="w-full pt-1.5">
           {qrCode.mode === 'generate' ? (
-            <div className="animate-in fade-in duration-200">
+            <div>
               <GeneratePanel />
             </div>
           ) : (
-            <div className="animate-in fade-in duration-200">
+            <div>
               <ParsePanel />
             </div>
           )}
diff --git a/pages/TextStatistics/index.tsx b/pages/TextStatistics/index.tsx
index 8dd5b5f..7d063c6 100644
--- a/pages/TextStatistics/index.tsx
+++ b/pages/TextStatistics/index.tsx
@@ -26,7 +26,7 @@ export default function Index() {
   ];
 
   return (
-    <div className="p-4 w-full space-y-4 animate-in fade-in duration-300">
+    <div className="p-4 w-full space-y-4">
       {/* 文本输入区域 */}
       <TextInputArea
         value={text}
@@ -45,7 +45,6 @@ export default function Index() {
             key={item.label}
             className={cn(
               'flex flex-col justify-center items-center p-4 text-center rounded-xl border border-border bg-card shadow-sm text-card-foreground',
-              'transition-all duration-200 ease-out',
               'hover:-translate-y-0.5 hover:shadow-md hover:border-primary/50 focus-within:ring-1 focus-within:ring-ring',
             )}
           >
diff --git a/pages/Timestamp/LiveClock.tsx b/pages/Timestamp/LiveClock.tsx
index 9a651dc..a809183 100644
--- a/pages/Timestamp/LiveClock.tsx
+++ b/pages/Timestamp/LiveClock.tsx
@@ -80,7 +80,7 @@ const LiveClock = React.memo(({ unit, onUseNow, className, ...props }: LiveClock
         type="button"
         onClick={handleUseNow}
         title={t('timestamp:useNowTooltip')}
-        className="flex h-7 w-7 items-center justify-center rounded-md border border-input bg-background text-muted-foreground shadow-sm transition-all hover:bg-accent hover:text-foreground active:scale-95 focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring"
+        className="flex h-7 w-7 items-center justify-center rounded-md border border-input bg-background text-muted-foreground shadow-sm hover:bg-accent hover:text-foreground focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring"
       >
         <Clock className="w-3.5 h-3.5" />
       </button>
diff --git a/pages/Timestamp/ResultView.tsx b/pages/Timestamp/ResultView.tsx
index 582b169..536d138 100644
--- a/pages/Timestamp/ResultView.tsx
+++ b/pages/Timestamp/ResultView.tsx
@@ -50,7 +50,7 @@ const ResultView = React.memo(
       return (
         <div
           className={cn(
-            'flex-1 flex items-center justify-center text-sm font-medium border border-dashed border-border/60 rounded-xl py-12 px-4 text-center text-muted-foreground bg-muted/20 min-h-[320px] animate-in fade-in duration-200',
+            'flex-1 flex items-center justify-center text-sm font-medium border border-dashed border-border/60 rounded-xl py-12 px-4 text-center text-muted-foreground bg-muted/20 min-h-[320px]',
             className,
           )}
           {...props}
@@ -61,13 +61,7 @@ const ResultView = React.memo(
     }
 
     return (
-      <div
-        className={cn(
-          'animate-in fade-in slide-in-from-bottom-2 duration-300 flex flex-col w-full',
-          className,
-        )}
-        {...props}
-      >
+      <div className={cn('flex flex-col w-full', className)} {...props}>
         {/* 顶部小标签 */}
         <span className="block text-muted-foreground/90 mb-2.5 text-xs font-semibold tracking-wider uppercase">
           {t('timestamp:resultLabel')}
@@ -78,7 +72,7 @@ const ResultView = React.memo(
           对齐 shadcn 官方卡片风格，使用 bg-card、border-border 构筑多层级阴影。
           核心数值直接拉粗为 text-foreground (在黑夜模式下会自动转为大气的纯白，完美避开刺眼强光)
         */}
-        <div className="bg-card text-card-foreground border border-border p-4 sm:p-5 rounded-xl relative mb-3.5 shadow-sm flex justify-between items-center gap-4 focus-within:ring-1 focus-within:ring-ring transition-all">
+        <div className="bg-card text-card-foreground border border-border p-4 sm:p-5 rounded-xl relative mb-3.5 shadow-sm flex justify-between items-center gap-4 focus-within:ring-1 focus-within:ring-ring">
           <span className="font-mono font-extrabold text-foreground break-all text-xl sm:text-2xl tracking-tight leading-tight select-all tabular-nums">
             {result}
           </span>
diff --git a/pages/Timestamp/index.tsx b/pages/Timestamp/index.tsx
index 7999c6d..d362db2 100644
--- a/pages/Timestamp/index.tsx
+++ b/pages/Timestamp/index.tsx
@@ -70,17 +70,13 @@ export default function Index() {
                   value={input}
                   onChange={(e: { target: { value: string } }) => setInput(e.target.value)}
                   className={cn(
-                    'font-mono font-semibold h-10 shadow-sm placeholder:text-muted-foreground/60 focus:bg-background transition-all',
+                    'font-mono font-semibold h-10 shadow-sm placeholder:text-muted-foreground/60 focus:bg-background',
                     error && 'border-destructive focus-visible:ring-destructive',
                   )}
                 />
 
                 {/* 错误自愈提示 */}
-                {error && (
-                  <p className="text-destructive text-xs font-medium px-0.5 animate-in fade-in slide-in-from-top-1 duration-150">
-                    {error}
-                  </p>
-                )}
+                {error && <p className="text-destructive text-xs font-medium px-0.5">{error}</p>}
               </div>
 
               {/* 核心配置群：单位切换 + 时区选择紧凑横排 */}