diff --git a/frontend/app/(main)/admin/settings/page-client.tsx b/frontend/app/(main)/admin/settings/page-client.tsx
index a740408d..47e2fa43 100644
--- a/frontend/app/(main)/admin/settings/page-client.tsx
+++ b/frontend/app/(main)/admin/settings/page-client.tsx
@@ -85,7 +85,7 @@ export function AdminSettingsPageClient() {
   if (loading || !user || !user.is_admin) {
     return (
       <div className="flex items-center justify-center min-h-[400px]">
-        <Loader2 className="size-6 animate-spin text-indigo-500" />
+        <Loader2 className="size-6 animate-spin text-primary" />
       </div>
     )
   }
diff --git a/frontend/components/common/settings/access-token.tsx b/frontend/components/common/settings/access-token.tsx
index d599017b..9a98f0a4 100644
--- a/frontend/components/common/settings/access-token.tsx
+++ b/frontend/components/common/settings/access-token.tsx
@@ -194,7 +194,7 @@ export function AccessTokenMain() {
         <CardContent className="pt-6 space-y-4">
           {accessTokensQuery.isPending ? (
             <div className="flex items-center justify-center py-8">
-              <Loader2 className="size-6 animate-spin text-indigo-500" />
+              <Loader2 className="size-6 animate-spin text-primary" />
             </div>
           ) : (accessTokensQuery.data ?? []).length > 0 ? (
             <div className="space-y-3">
@@ -231,7 +231,7 @@ export function AccessTokenMain() {
                       type="button"
                       variant="outline"
                       size="sm"
-                      className="text-xs border-dashed text-muted-foreground hover:text-indigo-500 hover:bg-indigo-500/5 rounded-lg h-8 px-2.5"
+                      className="text-xs border-dashed text-muted-foreground hover:text-primary hover:bg-primary/5 rounded-lg h-8 px-2.5"
                       onClick={() => handleCopyText(token.masked_token, token.id)}
                     >
                       {copiedId === token.id ? (
@@ -245,7 +245,7 @@ export function AccessTokenMain() {
                       type="button"
                       variant="outline"
                       size="sm"
-                      className="text-xs border-dashed text-muted-foreground hover:text-indigo-500 hover:bg-indigo-500/5 rounded-lg h-8 px-2.5"
+                      className="text-xs border-dashed text-muted-foreground hover:text-primary hover:bg-primary/5 rounded-lg h-8 px-2.5"
                       onClick={() => handleRotateToken(token.id, token.name)}
                       disabled={rotateTokenMutation.isPending}
                     >
@@ -305,7 +305,7 @@ export function AccessTokenMain() {
                   value={tokenName}
                   onChange={(e) => setTokenName(e.target.value)}
                   disabled={createTokenMutation.isPending}
-                  className="rounded-xl border border-dashed focus:border-indigo-500 focus:ring-0 focus-visible:ring-0"
+                  className="rounded-xl border border-dashed focus:border-primary focus:ring-0 focus-visible:ring-0"
                 />
               </div>
               {user?.is_admin && (
@@ -375,15 +375,15 @@ export function AccessTokenMain() {
           {newCreatedToken && (
             <div className="space-y-4 py-2">
               {/* 明文 Token 文本框 */}
-              <div className="flex items-center gap-2 rounded-xl bg-indigo-500/5 border border-dashed border-indigo-500/30 p-3">
-                <span className="font-mono text-xs select-all break-all flex-1 text-indigo-600 font-semibold leading-relaxed">
+              <div className="flex items-center gap-2 rounded-xl bg-primary/5 border border-dashed border-primary/30 p-3">
+                <span className="font-mono text-xs select-all break-all flex-1 text-primary font-semibold leading-relaxed">
                   {newCreatedToken.token}
                 </span>
                 <Button
                   type="button"
                   size="icon"
                   variant="outline"
-                  className="size-8 rounded-lg shrink-0 border-dashed text-indigo-500 hover:bg-indigo-500/10 hover:border-indigo-500/30 transition-colors"
+                  className="size-8 rounded-lg shrink-0 border-dashed text-primary hover:bg-primary/10 hover:border-primary/30 transition-colors"
                   onClick={() => handleCopyText(newCreatedToken.token, 9999)}
                 >
                   {copiedId === 9999 ? (
diff --git a/frontend/components/common/settings/operation-tab.tsx b/frontend/components/common/settings/operation-tab.tsx
index b386454a..99e67812 100644
--- a/frontend/components/common/settings/operation-tab.tsx
+++ b/frontend/components/common/settings/operation-tab.tsx
@@ -88,7 +88,7 @@ export function OperationTab({ configs, systemConfigsQuery }: OperationTabProps)
       <Card className="border border-dashed shadow-sm">
         <CardHeader className="border-b border-dashed pb-4">
           <div className="flex items-center gap-2">
-            <div className="p-1.5 rounded-lg bg-indigo-500/10 text-indigo-500">
+            <div className="p-1.5 rounded-lg bg-primary/10 text-primary">
               <KeyRound className="size-4" />
             </div>
             <div>
@@ -125,9 +125,9 @@ export function OperationTab({ configs, systemConfigsQuery }: OperationTabProps)
             </div>
 
             {/* 当前白名单列表 */}
-            <div className="rounded-xl border border-dashed p-4 bg-card hover:bg-muted/10 hover:border-indigo-500/30 transition-all duration-300 shadow-sm space-y-3">
+            <div className="rounded-xl border border-dashed p-4 bg-card hover:bg-muted/10 hover:border-primary/30 transition-all duration-300 shadow-sm space-y-3">
               <div className="flex items-center gap-2">
-                <ShieldAlert className="size-4 text-indigo-500" />
+                <ShieldAlert className="size-4 text-primary" />
                 <span className="font-medium text-sm text-foreground">当前免鉴权列表</span>
               </div>
 
@@ -137,14 +137,14 @@ export function OperationTab({ configs, systemConfigsQuery }: OperationTabProps)
                     <Badge
                       key={type}
                       variant="secondary"
-                      className="px-2.5 py-1 text-xs gap-1.5 flex items-center bg-indigo-500/10 text-indigo-700 dark:text-indigo-300 dark:bg-indigo-500/20 border border-indigo-500/20"
+                      className="px-2.5 py-1 text-xs gap-1.5 flex items-center bg-primary/10 text-primary dark:bg-primary/20 border border-primary/20"
                     >
                       {availableTypes.find(t => t.value === type)?.label || type}
                       <button
                         type="button"
                         onClick={() => handleRemoveType(type)}
                         disabled={updateWhitelistMutation.isPending || systemConfigsQuery.isPending}
-                        className="rounded-full outline-hidden hover:bg-indigo-500/20 p-0.5 text-indigo-600 dark:text-indigo-400 cursor-pointer disabled:cursor-not-allowed"
+                        className="rounded-full outline-hidden hover:bg-primary/20 p-0.5 text-primary cursor-pointer disabled:cursor-not-allowed"
                       >
                         <X className="size-3" />
                       </button>
diff --git a/frontend/components/common/settings/other-tab.tsx b/frontend/components/common/settings/other-tab.tsx
index 3bb91de1..57d516c1 100644
--- a/frontend/components/common/settings/other-tab.tsx
+++ b/frontend/components/common/settings/other-tab.tsx
@@ -112,7 +112,7 @@ export function OtherTab({ configs }: OtherTabProps) {
     <Card className="border border-dashed shadow-sm">
       <CardHeader className="border-b border-dashed pb-4">
         <div className="flex items-center gap-2">
-          <div className="p-1.5 rounded-lg bg-indigo-500/10 text-indigo-500">
+          <div className="p-1.5 rounded-lg bg-primary/10 text-primary">
             <LayoutList className="size-4" />
           </div>
           <div>
@@ -141,11 +141,11 @@ export function OtherTab({ configs }: OtherTabProps) {
                 return (
                   <div
                     key={item.path}
-                    className="flex items-center justify-between gap-4 rounded-xl border border-dashed p-4 bg-card hover:bg-muted/10 hover:border-indigo-500/30 transition-all duration-300 shadow-sm"
+                    className="flex items-center justify-between gap-4 rounded-xl border border-dashed p-4 bg-card hover:bg-muted/10 hover:border-primary/30 transition-all duration-300 shadow-sm"
                   >
                     <div className="space-y-1.5 flex-1 min-w-0 pr-2">
                       <div className="flex items-center gap-2">
-                        {Icon && <Icon className="size-4 text-indigo-500 shrink-0" />}
+                        {Icon && <Icon className="size-4 text-primary shrink-0" />}
                         <span className="font-medium text-sm text-foreground truncate">{item.label}</span>
                         {isReadOnly && (
                           <span className="text-[9px] px-1.5 py-0.5 rounded bg-muted text-muted-foreground border shrink-0">
@@ -171,8 +171,8 @@ export function OtherTab({ configs }: OtherTabProps) {
           </div>
         ))}
 
-        <div className="p-3.5 rounded-lg border border-dashed border-indigo-500/20 bg-indigo-500/5 flex items-start gap-2.5">
-          <Info className="size-4 text-indigo-500 shrink-0 mt-0.5" />
+        <div className="p-3.5 rounded-lg border border-dashed border-primary/20 bg-primary/5 flex items-start gap-2.5">
+          <Info className="size-4 text-primary shrink-0 mt-0.5" />
           <div className="text-xs text-muted-foreground leading-relaxed">
             <span className="font-semibold text-foreground">安全提示：</span>
             为了防止管理员在关闭“系统设置”后导致无法重新访问此配置页，系统限制了“系统设置”的关闭权限。其它所有菜单均可自由开关，隐藏后对应的分组标题在为空时也会自动隐藏。
diff --git a/frontend/components/common/settings/profile.tsx b/frontend/components/common/settings/profile.tsx
index 492e0ecd..06e3b48b 100644
--- a/frontend/components/common/settings/profile.tsx
+++ b/frontend/components/common/settings/profile.tsx
@@ -275,7 +275,7 @@ export function ProfileMain() {
           >
             <Avatar className="size-20 md:size-24 border-2 border-primary/10 shadow-md">
               <AvatarImage src={user.avatar_url} alt={user.nickname || user.username} />
-              <AvatarFallback className="text-2xl bg-indigo-600 text-white font-bold">
+              <AvatarFallback className="text-2xl bg-primary text-primary-foreground font-bold">
                 {(user.nickname || user.username).slice(0, 2).toUpperCase()}
               </AvatarFallback>
             </Avatar>
@@ -342,7 +342,7 @@ export function ProfileMain() {
                       href={user.website.startsWith("http") ? user.website : `http://${user.website}`}
                       target="_blank"
                       rel="noopener noreferrer"
-                      className="text-indigo-600 hover:underline"
+                      className="text-primary hover:underline"
                     >
                       {user.website}
                     </a>
@@ -473,7 +473,7 @@ export function ProfileMain() {
         <div className="space-y-6 bg-card border border-dashed rounded-lg p-6 flex flex-col justify-between">
           <div>
             <div className="border-b pb-4 flex items-center gap-2">
-              <div className="p-1.5 rounded-lg bg-indigo-500/10 text-indigo-500">
+              <div className="p-1.5 rounded-lg bg-primary/10 text-primary">
                 <Link2 className="size-4" />
               </div>
               <div>
@@ -487,7 +487,7 @@ export function ProfileMain() {
               <h3 className="text-[11px] font-semibold text-muted-foreground uppercase tracking-wider">已绑定账号</h3>
               {externalAccountBindingsQuery.isPending ? (
                 <div className="flex items-center justify-center py-4">
-                  <Loader2 className="size-4 animate-spin text-indigo-500" />
+                  <Loader2 className="size-4 animate-spin text-primary" />
                 </div>
               ) : (externalAccountBindingsQuery.data ?? []).length > 0 ? (
                 <div className="space-y-2">
@@ -534,7 +534,7 @@ export function ProfileMain() {
               <h3 className="text-[11px] font-semibold text-muted-foreground uppercase tracking-wider">绑定新账号</h3>
               {publicAuthSourcesQuery.isPending ? (
                 <div className="flex items-center justify-center py-4">
-                  <Loader2 className="size-4 animate-spin text-indigo-500" />
+                  <Loader2 className="size-4 animate-spin text-primary" />
                 </div>
               ) : (publicAuthSourcesQuery.data ?? []).length > 0 ? (
                 <div className="grid grid-cols-1 gap-2">
@@ -543,16 +543,16 @@ export function ProfileMain() {
                       key={source.id}
                       type="button"
                       variant="outline"
-                      className="flex items-center justify-between w-full border border-dashed rounded-xl px-3 py-2 text-left font-normal text-xs hover:bg-indigo-500/5 hover:text-indigo-500 hover:border-indigo-500/30 transition-all duration-300 group h-8"
+                      className="flex items-center justify-between w-full border border-dashed rounded-xl px-3 py-2 text-left font-normal text-xs hover:bg-primary/5 hover:text-primary hover:border-primary/30 transition-all duration-300 group h-8"
                       onClick={() => {
                         void bindSourceMutation.mutateAsync(source.name)
                       }}
                     >
                       <div className="flex items-center gap-1.5">
-                        <Link2 className="size-3 text-muted-foreground group-hover:text-indigo-500" />
+                        <Link2 className="size-3 text-muted-foreground group-hover:text-primary" />
                         <span>绑定 {source.display_name || source.name}</span>
                       </div>
-                      <ArrowRight className="size-3 opacity-0 -translate-x-1 group-hover:opacity-100 group-hover:translate-x-0 transition-all text-indigo-500" />
+                      <ArrowRight className="size-3 opacity-0 -translate-x-1 group-hover:opacity-100 group-hover:translate-x-0 transition-all text-primary" />
                     </Button>
                   ))}
                 </div>
@@ -583,7 +583,7 @@ export function ProfileMain() {
               >
                 <Avatar className="size-20 border-2 border-primary/5 shadow-md">
                   <AvatarImage src={avatarUrl} alt={nickname} />
-                  <AvatarFallback className="text-xl bg-indigo-600 text-white font-bold">
+                  <AvatarFallback className="text-xl bg-primary text-primary-foreground font-bold">
                     {(nickname || "U").slice(0, 2).toUpperCase()}
                   </AvatarFallback>
                 </Avatar>
diff --git a/frontend/components/common/settings/security-tab.tsx b/frontend/components/common/settings/security-tab.tsx
index e5fe031a..6cbed048 100644
--- a/frontend/components/common/settings/security-tab.tsx
+++ b/frontend/components/common/settings/security-tab.tsx
@@ -245,7 +245,7 @@ export function SecurityTab({ configs, systemConfigsQuery }: SecurityTabProps) {
       <Card className="border border-dashed shadow-sm">
         <CardHeader className="border-b border-dashed pb-4">
           <div className="flex items-center gap-2">
-            <div className="p-1.5 rounded-lg bg-indigo-500/10 text-indigo-500">
+            <div className="p-1.5 rounded-lg bg-primary/10 text-primary">
               <Settings className="size-4" />
             </div>
             <div>
@@ -263,11 +263,11 @@ export function SecurityTab({ configs, systemConfigsQuery }: SecurityTabProps) {
               return (
                 <div
                   key={item.key}
-                  className="flex items-center justify-between gap-4 rounded-xl border border-dashed p-4 bg-card hover:bg-muted/10 hover:border-indigo-500/30 transition-all duration-300 shadow-sm"
+                  className="flex items-center justify-between gap-4 rounded-xl border border-dashed p-4 bg-card hover:bg-muted/10 hover:border-primary/30 transition-all duration-300 shadow-sm"
                 >
                   <div className="space-y-1">
                     <div className="flex items-center gap-2">
-                      {Icon && <Icon className="size-4 text-indigo-500" />}
+                      {Icon && <Icon className="size-4 text-primary" />}
                       <span className="font-medium text-sm text-foreground">{item.title}</span>
                     </div>
                     <p className="text-xs text-muted-foreground leading-relaxed pr-2">{item.description}</p>
@@ -283,11 +283,11 @@ export function SecurityTab({ configs, systemConfigsQuery }: SecurityTabProps) {
 
             {/* 登录状态保持时间 (选择后立即更改) */}
             <div
-              className="flex items-center justify-between gap-4 rounded-xl border border-dashed p-4 bg-card hover:bg-muted/10 hover:border-indigo-500/30 transition-all duration-300 shadow-sm md:col-span-2"
+              className="flex items-center justify-between gap-4 rounded-xl border border-dashed p-4 bg-card hover:bg-muted/10 hover:border-primary/30 transition-all duration-300 shadow-sm md:col-span-2"
             >
               <div className="space-y-1 pr-4">
                 <div className="flex items-center gap-2">
-                  <Clock className="size-4 text-indigo-500" />
+                  <Clock className="size-4 text-primary" />
                   <span className="font-medium text-sm text-foreground">登录状态保持时间</span>
                 </div>
                 <p className="text-xs text-muted-foreground leading-relaxed pr-2">
@@ -340,7 +340,7 @@ export function SecurityTab({ configs, systemConfigsQuery }: SecurityTabProps) {
       <Card className="border border-dashed shadow-sm">
         <CardHeader className="border-b border-dashed pb-4 flex flex-row items-center justify-between gap-4">
           <div className="flex items-center gap-2">
-            <div className="p-1.5 rounded-lg bg-indigo-500/10 text-indigo-500">
+            <div className="p-1.5 rounded-lg bg-primary/10 text-primary">
               <Globe className="size-4" />
             </div>
             <div>
@@ -390,7 +390,7 @@ export function SecurityTab({ configs, systemConfigsQuery }: SecurityTabProps) {
                 <div className="flex items-center gap-4">
                   <span className={`text-xs px-2.5 py-1 rounded-lg border font-medium hidden sm:inline-block ${
                     source.client_secret_configured
-                      ? "bg-indigo-500/5 text-indigo-500 border-indigo-500/10"
+                      ? "bg-primary/5 text-primary border-primary/10"
                       : "bg-rose-500/5 text-rose-500 border-rose-500/10"
                   }`}>
                     {source.client_secret_configured ? "Secret 已配置" : "Secret 未配置"}
@@ -407,7 +407,7 @@ export function SecurityTab({ configs, systemConfigsQuery }: SecurityTabProps) {
                       type="button"
                       variant="ghost"
                       size="icon"
-                      className="size-8 text-muted-foreground hover:text-indigo-500 hover:bg-indigo-500/10 rounded-lg transition-colors"
+                      className="size-8 text-muted-foreground hover:text-primary hover:bg-primary/10 rounded-lg transition-colors"
                       onClick={() => {
                         setSelectedSource(source)
                         setAuthSourceModalOpen(true)
@@ -458,7 +458,7 @@ export function SecurityTab({ configs, systemConfigsQuery }: SecurityTabProps) {
       <Card className="border border-dashed shadow-sm">
         <CardHeader className="border-b border-dashed pb-4 flex flex-row items-center justify-between gap-4">
           <div className="flex items-center gap-2">
-            <div className="p-1.5 rounded-lg bg-indigo-500/10 text-indigo-500">
+            <div className="p-1.5 rounded-lg bg-primary/10 text-primary">
               <Shield className="size-4" />
             </div>
             <div>
diff --git a/frontend/components/common/settings/system-tab.tsx b/frontend/components/common/settings/system-tab.tsx
index 581951a2..c0fbabac 100644
--- a/frontend/components/common/settings/system-tab.tsx
+++ b/frontend/components/common/settings/system-tab.tsx
@@ -193,7 +193,7 @@ export function SystemTab({ configs, systemConfigsQuery }: SystemTabProps) {
       <Card className="border border-dashed shadow-sm">
         <CardHeader className="border-b border-dashed pb-4">
           <div className="flex items-center gap-2">
-            <div className="rounded-lg bg-indigo-500/10 p-1.5 text-indigo-500">
+            <div className="rounded-lg bg-primary/10 p-1.5 text-primary">
               <Server className="size-4" />
             </div>
             <div>
@@ -310,7 +310,7 @@ export function SystemTab({ configs, systemConfigsQuery }: SystemTabProps) {
       <Card className="border border-dashed shadow-sm">
         <CardHeader className="border-b border-dashed pb-4">
           <div className="flex items-center gap-2">
-            <div className="p-1.5 rounded-lg bg-indigo-500/10 text-indigo-500">
+            <div className="p-1.5 rounded-lg bg-primary/10 text-primary">
               <Mail className="size-4" />
             </div>
             <div>
diff --git a/frontend/components/common/settings/templates.tsx b/frontend/components/common/settings/templates.tsx
index c1721142..1d3fc0ae 100644
--- a/frontend/components/common/settings/templates.tsx
+++ b/frontend/components/common/settings/templates.tsx
@@ -124,7 +124,7 @@ export function TemplatesManager() {
       <Card className="border border-dashed shadow-sm">
         <CardHeader className="border-b border-dashed pb-4 flex flex-row items-center justify-between gap-4">
           <div className="flex items-center gap-2">
-            <div className="p-1.5 rounded-lg bg-indigo-500/10 text-indigo-500">
+            <div className="p-1.5 rounded-lg bg-primary/10 text-primary">
               <FileText className="size-4" />
             </div>
             <div>
@@ -154,14 +154,14 @@ export function TemplatesManager() {
               {(templatesQuery.data ?? []).map((tmpl) => (
                 <div
                   key={tmpl.id}
-                  className="flex flex-col sm:flex-row sm:items-center justify-between gap-4 rounded-xl border border-dashed p-4 bg-card hover:bg-muted/10 hover:border-indigo-500/30 transition-all duration-300 shadow-sm"
+                  className="flex flex-col sm:flex-row sm:items-center justify-between gap-4 rounded-xl border border-dashed p-4 bg-card hover:bg-muted/10 hover:border-primary/30 transition-all duration-300 shadow-sm"
                 >
                   <div className="space-y-1.5">
                     <div className="flex items-center gap-2 flex-wrap">
                       <span className="font-semibold text-sm text-foreground">{tmpl.name}</span>
                       <span className={`text-[10px] px-2 py-0.5 rounded-full border font-medium ${
                         tmpl.is_system
-                          ? "bg-indigo-500/10 text-indigo-500 border-indigo-500/20"
+                          ? "bg-primary/10 text-primary border-primary/20"
                           : "bg-amber-500/10 text-amber-500 border-amber-500/20"
                       }`}>
                         {tmpl.is_system ? "系统内置" : "自定义"}
@@ -171,7 +171,7 @@ export function TemplatesManager() {
                       </span>
                     </div>
                     <div className="text-xs text-muted-foreground">
-                      标识符: <span className="font-mono text-indigo-500 bg-indigo-500/5 px-1.5 py-0.5 rounded">{tmpl.key}</span>
+                      标识符: <span className="font-mono text-primary bg-primary/5 px-1.5 py-0.5 rounded">{tmpl.key}</span>
                       {tmpl.subject && ` · 主题: ${tmpl.subject}`}
                     </div>
                     {tmpl.description && (
@@ -185,7 +185,7 @@ export function TemplatesManager() {
                       type="button"
                       variant="ghost"
                       size="icon"
-                      className="size-8 text-muted-foreground hover:text-indigo-500 hover:bg-indigo-500/10 rounded-lg transition-colors"
+                      className="size-8 text-muted-foreground hover:text-primary hover:bg-primary/10 rounded-lg transition-colors"
                       onClick={() => handleOpenEdit(tmpl)}
                     >
                       <Pencil className="size-4" />