diff --git a/frontend-web/public/agent-avatar-red.png b/frontend-web/public/agent-avatar-red.png
new file mode 100644
index 00000000..229a7cda
Binary files /dev/null and b/frontend-web/public/agent-avatar-red.png differ
diff --git a/frontend-web/public/cm-assistant-logo-red.png b/frontend-web/public/cm-assistant-logo-red.png
new file mode 100644
index 00000000..d2a9a38b
Binary files /dev/null and b/frontend-web/public/cm-assistant-logo-red.png differ
diff --git a/frontend-web/src/components/ui/sidebar.tsx b/frontend-web/src/components/ui/sidebar.tsx
index f544abf3..8fd95752 100644
--- a/frontend-web/src/components/ui/sidebar.tsx
+++ b/frontend-web/src/components/ui/sidebar.tsx
@@ -27,7 +27,9 @@ import {
 
 const SIDEBAR_COOKIE_NAME = "sidebar_state";
 const SIDEBAR_COOKIE_MAX_AGE = 60 * 60 * 24 * 7;
-const SIDEBAR_WIDTH = "16rem";
+// Keep the workbench navigation compact across every theme. The visual theme
+// only changes tokens; the information density should remain consistent.
+const SIDEBAR_WIDTH = "14rem";
 const SIDEBAR_WIDTH_MOBILE = "18rem";
 const SIDEBAR_WIDTH_ICON = "3rem";
 const SIDEBAR_KEYBOARD_SHORTCUT = "b";
diff --git a/frontend-web/src/components/workspace/agents/agent-brand-icon.tsx b/frontend-web/src/components/workspace/agents/agent-brand-icon.tsx
index 4a82bf61..0364ff8b 100644
--- a/frontend-web/src/components/workspace/agents/agent-brand-icon.tsx
+++ b/frontend-web/src/components/workspace/agents/agent-brand-icon.tsx
@@ -1,7 +1,6 @@
 "use client";
 
-import { BotIcon, SparklesIcon } from "lucide-react";
-
+import { useTheme } from "@/contexts/ThemeContext";
 import { cn } from "@/lib/utils";
 
 type AgentBrandIconProps = {
@@ -12,27 +11,15 @@ type AgentBrandIconProps = {
 const SIZE_STYLES = {
   nav: {
     frame: "size-[22px] rounded-md",
-    bot: "size-3.5",
-    badge: "-right-1 -top-1 size-2.5",
-    sparkle: "size-1.5",
   },
   sm: {
     frame: "size-10 rounded-full",
-    bot: "size-[18px]",
-    badge: "-right-1 -top-1 size-3.5",
-    sparkle: "size-2",
   },
   md: {
     frame: "size-12 rounded-full",
-    bot: "size-6",
-    badge: "-right-1 -top-1 size-4",
-    sparkle: "size-2.5",
   },
   lg: {
     frame: "size-16 rounded-full",
-    bot: "size-7",
-    badge: "-right-1 -top-1 size-[18px]",
-    sparkle: "size-3",
   },
 } as const;
 
@@ -41,50 +28,26 @@ export function AgentBrandIcon({
   size = "md",
 }: AgentBrandIconProps) {
   const styles = SIZE_STYLES[size];
-  const showBadge = size === "nav";
-
-  if (size !== "nav") {
-    return (
-      <span
-        aria-hidden="true"
-        data-agent-brand-icon={size}
-        className={cn(
-          "relative inline-flex shrink-0 overflow-hidden rounded-full",
-          styles.frame,
-          className,
-        )}
-      >
-        <img
-          src="/agent-avatar.png"
-          alt=""
-          className="size-full object-contain"
-          draggable={false}
-        />
-      </span>
-    );
-  }
+  const { theme } = useTheme();
+  const avatarSrc =
+    theme === "light" ? "/agent-avatar-red.png" : "/agent-avatar.png";
 
   return (
     <span
       aria-hidden="true"
       data-agent-brand-icon={size}
       className={cn(
-        "relative inline-flex shrink-0 items-center justify-center border border-blue-100 bg-[radial-gradient(circle_at_35%_30%,#ffffff_0%,#edf4ff_46%,#dce9ff_100%)] text-[#1f5fdb] shadow-[0_8px_22px_rgba(37,99,235,0.13),inset_0_1px_0_rgba(255,255,255,0.9)] dark:border-blue-400/30 dark:bg-blue-500/20 dark:text-blue-300",
+        "relative inline-flex shrink-0 overflow-hidden rounded-full",
         styles.frame,
         className,
       )}
     >
-      <BotIcon className={styles.bot} strokeWidth={1.9} />
-      {showBadge && (
-        <span
-          className={cn(
-            "absolute flex items-center justify-center rounded-full bg-gradient-to-br from-[#4b91ff] to-[#1858db] text-white shadow-sm ring-2 ring-white dark:ring-slate-950",
-            styles.badge,
-          )}
-        >
-          <SparklesIcon className={styles.sparkle} strokeWidth={2.4} />
-        </span>
-      )}
+      <img
+        src={avatarSrc}
+        alt=""
+        className="size-full object-contain"
+        draggable={false}
+      />
     </span>
   );
 }
diff --git a/frontend-web/src/components/workspace/agents/agent-card.tsx b/frontend-web/src/components/workspace/agents/agent-card.tsx
index 62870b9a..2a4dad79 100644
--- a/frontend-web/src/components/workspace/agents/agent-card.tsx
+++ b/frontend-web/src/components/workspace/agents/agent-card.tsx
@@ -567,7 +567,7 @@ export function AgentCard({ agent, layout = "card", onPublisherClick }: AgentCar
       {isFromOthers && (
         <Badge
           variant="outline"
-          className="border-blue-200 bg-blue-50/60 text-xs text-blue-700 dark:border-blue-800 dark:bg-blue-500/10 dark:text-blue-300"
+          className="border-primary/20 bg-primary/5 text-primary text-xs dark:border-primary/40 dark:bg-primary/10 dark:text-primary"
           title={agent.user_id ? `来自用户 ${agent.user_id}` : "已发布"}
         >
           来自他人
@@ -576,7 +576,7 @@ export function AgentCard({ agent, layout = "card", onPublisherClick }: AgentCar
       {(isOwned || isAdmin) && !isBuiltin && agent.published && !agent.is_private && (
         <Badge
           variant="outline"
-          className="border-sky-200 bg-sky-50/60 text-xs text-sky-700 dark:border-sky-800 dark:bg-sky-500/10 dark:text-sky-300"
+          className="border-primary/20 bg-primary/5 text-primary text-xs dark:border-primary/40 dark:bg-primary/10 dark:text-primary"
           title="该智能体已对所有用户可见"
         >
           <GlobeIcon className="size-3" />
@@ -675,7 +675,7 @@ export function AgentCard({ agent, layout = "card", onPublisherClick }: AgentCar
         <Badge
           key={`tg:${group}`}
           variant="outline"
-          className="border-0 bg-[#f1f5ff] px-2.5 py-1 text-xs font-normal text-[#2166e8] hover:bg-[#e9f0ff]"
+          className="border-0 bg-primary/5 text-primary hover:bg-primary/10 px-2.5 py-1 text-xs font-normal"
         >
           {desensitize(group)}
         </Badge>
@@ -687,7 +687,7 @@ export function AgentCard({ agent, layout = "card", onPublisherClick }: AgentCar
         <Badge
           key={`sk:${skill}`}
           variant="secondary"
-          className="cursor-pointer border-0 bg-[#f1f5ff] px-2.5 py-1 text-xs font-normal text-[#2166e8] hover:bg-[#e9f0ff]"
+          className="bg-primary/5 text-primary hover:bg-primary/10 cursor-pointer border-0 px-2.5 py-1 text-xs font-normal"
           title={t.settings.skills.viewDetailAction}
           onClick={(e) => {
             e.stopPropagation();
@@ -841,8 +841,8 @@ export function AgentCard({ agent, layout = "card", onPublisherClick }: AgentCar
       size="sm"
       className={cn(
         isList
-          ? "shrink-0 rounded-xl bg-[#1f63e9] px-4 font-medium text-white hover:bg-[#1857d4]"
-          : "h-11 w-full rounded-lg border-[#b9d1ff] bg-white font-medium text-[#135ee8] shadow-none hover:border-[#79a8ff] hover:bg-[#f7faff] hover:text-[#135ee8] dark:border-blue-700 dark:bg-slate-900 dark:text-blue-300",
+          ? "bg-primary hover:bg-primary/90 shrink-0 rounded-xl px-4 font-medium text-primary-foreground"
+          : "border-primary/35 text-primary hover:border-primary/55 hover:bg-primary/5 h-11 w-full rounded-lg bg-white font-medium shadow-none dark:bg-slate-900 dark:text-primary",
       )}
       onClick={handleChat}
     >
@@ -857,8 +857,8 @@ export function AgentCard({ agent, layout = "card", onPublisherClick }: AgentCar
       私密
     </Badge>
   ) : agent.published || isBuiltin ? (
-    <Badge className="border-0 bg-blue-50 px-2.5 py-1 text-xs font-normal text-blue-600 hover:bg-blue-50 dark:bg-blue-500/15 dark:text-blue-300">
-      <span className="mr-1.5 size-1.5 rounded-full bg-blue-500" />
+    <Badge className="border-0 bg-primary/5 text-primary hover:bg-primary/5 px-2.5 py-1 text-xs font-normal dark:bg-primary/15 dark:text-primary">
+      <span className="bg-primary mr-1.5 size-1.5 rounded-full" />
       已发布
     </Badge>
   ) : (
@@ -944,15 +944,15 @@ export function AgentCard({ agent, layout = "card", onPublisherClick }: AgentCar
   const cardLayout = (
     <Card
       className={cn(
-        "group flex min-h-[366px] min-w-0 flex-col gap-0 overflow-hidden rounded-2xl border-slate-200/90 bg-white py-0 shadow-[0_5px_18px_rgba(15,23,42,0.035)] transition-[background-color,border-color,box-shadow] duration-200 hover:!border-[#b8d1ff] hover:!bg-[linear-gradient(135deg,rgba(239,246,255,0.92)_0%,rgba(255,255,255,0.98)_48%,#fff_100%)] hover:!ring-1 hover:!ring-[#e2edff] hover:shadow-[0_8px_24px_rgba(37,99,235,0.07)] dark:border-slate-800 dark:bg-slate-900",
-        agent.featured_order != null && "border-blue-300 ring-1 ring-blue-100 dark:border-blue-700 dark:ring-blue-900/40",
+        "group flex min-h-[334px] min-w-0 flex-col gap-0 overflow-hidden rounded-2xl border-slate-200/90 bg-white py-0 shadow-[0_5px_18px_rgba(15,23,42,0.035)] transition-[background-color,border-color,box-shadow] duration-200 hover:!border-primary/30 hover:!bg-primary/5 hover:!ring-1 hover:!ring-primary/10 hover:shadow-[0_8px_24px_rgba(15,23,42,0.08)] dark:border-slate-800 dark:bg-slate-900",
+        agent.featured_order != null && "border-primary/40 ring-1 ring-primary/15 dark:border-primary/45 dark:ring-primary/20",
       )}
     >
       <CardHeader className="min-w-0 gap-0 px-5 pt-5 pb-2">
         {agent.featured_order != null ? (
           <>
             <div className="mb-1 flex h-7 items-center justify-between">
-              <Badge className="border border-blue-200 bg-blue-50 px-2.5 py-1 text-xs font-medium text-blue-600 hover:bg-blue-50 dark:border-blue-800 dark:bg-blue-500/15 dark:text-blue-300">
+              <Badge className="border border-primary/20 bg-primary/5 text-primary hover:bg-primary/5 px-2.5 py-1 text-xs font-medium dark:border-primary/40 dark:bg-primary/15 dark:text-primary">
                 <SparklesIcon className="mr-1 size-3.5 fill-current" />
                 推荐
               </Badge>
@@ -991,7 +991,7 @@ export function AgentCard({ agent, layout = "card", onPublisherClick }: AgentCar
         </CardContent>
       )}
 
-      <CardFooter className="mt-auto flex flex-col items-stretch gap-10 px-5 pt-2 pb-4">
+      <CardFooter className="mt-auto flex flex-col items-stretch gap-4 px-5 pt-2 pb-4">
         <div className="flex min-w-0 items-center gap-3">
           {cardStatusBadge}
           <span
@@ -1008,7 +1008,7 @@ export function AgentCard({ agent, layout = "card", onPublisherClick }: AgentCar
   );
 
   const listLayout = (
-    <div className="group flex min-w-0 items-center gap-4 rounded-2xl border border-slate-200/90 bg-white p-4 shadow-[0_8px_24px_rgba(15,23,42,0.04)] transition-all hover:border-blue-200 hover:shadow-[0_12px_32px_rgba(37,99,235,0.09)] dark:border-slate-800 dark:bg-slate-900">
+    <div className="group flex min-w-0 items-center gap-4 rounded-2xl border border-slate-200/90 bg-white p-4 shadow-[0_8px_24px_rgba(15,23,42,0.04)] transition-all hover:border-primary/25 hover:shadow-[0_12px_32px_rgba(15,23,42,0.09)] dark:border-slate-800 dark:bg-slate-900">
       <AgentBrandIcon className="agent-avatar" size="md" />
       <div className="min-w-0 flex-1 overflow-hidden">
         <div className="flex min-w-0 items-center gap-2">
diff --git a/frontend-web/src/components/workspace/agents/agent-gallery.tsx b/frontend-web/src/components/workspace/agents/agent-gallery.tsx
index 0def486c..4a9bde5a 100644
--- a/frontend-web/src/components/workspace/agents/agent-gallery.tsx
+++ b/frontend-web/src/components/workspace/agents/agent-gallery.tsx
@@ -271,17 +271,17 @@ export function AgentGallery() {
   };
 
   const renderEmpty = (description: string, showNewButton = false) => (
-    <div className="flex h-72 flex-col items-center justify-center gap-3 rounded-2xl border border-dashed border-blue-200 bg-white/70 text-center shadow-[0_12px_36px_rgba(37,99,235,0.05)] dark:border-blue-900 dark:bg-slate-900/70">
+    <div className="flex h-72 flex-col items-center justify-center gap-3 rounded-2xl border border-dashed border-primary/25 bg-white/70 text-center shadow-[0_12px_36px_rgba(15,23,42,0.05)] dark:border-primary/40 dark:bg-slate-900/70">
       <AgentBrandIcon size="lg" />
       <div>
-        <p className="font-medium dark:text-[#AACEFF]">{t.agents.emptyTitle}</p>
-        <p className="text-muted-foreground mt-1 text-sm dark:text-[#55A6FE]">
+        <p className="font-medium">{t.agents.emptyTitle}</p>
+        <p className="text-muted-foreground mt-1 text-sm">
           {description}
         </p>
       </div>
       {showNewButton && (
         <Button
-          className="mt-2 rounded-xl bg-[#1f63e9] px-5 shadow-[0_8px_20px_rgba(31,99,233,0.22)] hover:bg-[#1857d4] dark:border-[#2580FF] dark:bg-[#2580FF] dark:text-white dark:hover:border-[#2580FF] dark:hover:bg-[#2580FF]/90 dark:hover:text-white"
+          className="bg-primary hover:bg-primary/90 mt-2 rounded-xl px-5 text-primary-foreground shadow-[0_8px_20px_rgba(15,23,42,0.16)]"
           onClick={handleNewAgent}
         >
           <PlusIcon className="mr-1.5 h-4 w-4" />
@@ -368,20 +368,20 @@ export function AgentGallery() {
   };
 
   return (
-    <div className="flex size-full min-h-0 flex-col overflow-hidden border-y border-r border-slate-200/80 bg-white dark:border-slate-800 dark:bg-slate-950">
+    <div className="flex size-full min-h-0 flex-col overflow-hidden bg-white dark:bg-slate-950">
       {/* Page header */}
-      <div className="flex shrink-0 items-start justify-between px-[38px] pt-[45px] pb-[38px]">
+      <div className="flex shrink-0 items-start justify-between px-5 pt-7 pb-6 sm:px-8">
         <div>
-          <h1 className="text-[28px] leading-none font-semibold tracking-[-0.03em] text-slate-950 dark:text-white">
+          <h1 className="text-[26px] leading-none font-semibold tracking-[-0.03em] text-slate-950 dark:text-white">
             {t.agents.title}
           </h1>
-          <p className="mt-4 text-[15px] text-slate-500 dark:text-slate-400">
+          <p className="mt-2.5 text-[15px] text-slate-500 dark:text-slate-400">
             创建并管理专属的 AI 智能体，助力更高效的工作与决策。
           </p>
         </div>
         <Button
           onClick={handleNewAgent}
-          className="h-12 w-[154px] rounded-lg bg-gradient-to-r from-[#2467ea] to-[#0f54ed] px-0 text-[15px] font-medium shadow-[0_9px_22px_rgba(31,99,233,0.22)] hover:brightness-105"
+          className="bg-primary hover:bg-primary/90 h-11 w-[148px] rounded-xl px-0 text-[15px] font-medium text-primary-foreground shadow-[0_9px_22px_rgba(15,23,42,0.16)]"
         >
           <PlusIcon className="mr-2 h-[18px] w-[18px]" />
           {t.agents.newAgent}
@@ -401,12 +401,12 @@ export function AgentGallery() {
         }}
         className="flex min-h-0 flex-1 flex-col overflow-hidden"
       >
-        <div className="shrink-0 px-[38px]">
-          <div className="flex min-h-14 flex-col gap-3 border-b border-slate-200/90 lg:flex-row lg:items-end lg:justify-between dark:border-slate-800">
+        <div className="shrink-0 px-5 sm:px-8">
+          <div className="flex min-h-12 flex-col gap-3 border-b border-slate-200/90 lg:flex-row lg:items-end lg:justify-between dark:border-slate-800">
             <TabsList variant="line" className="h-auto w-auto max-w-full flex-wrap justify-start self-start rounded-none border-0 bg-transparent p-0">
               <TabsTrigger
                 value="mine"
-                className="h-14 rounded-none border-x-0 border-t-0 border-b-2 border-transparent bg-transparent px-3 text-[15px] shadow-none after:hidden data-[state=active]:border-x-0 data-[state=active]:border-t-0 data-[state=active]:!border-b-[#2166e8] data-[state=active]:bg-transparent data-[state=active]:text-[#2166e8] data-[state=active]:!shadow-none"
+                  className="h-12 rounded-none border-x-0 border-t-0 border-b-2 border-transparent bg-transparent px-3 text-[15px] shadow-none after:hidden data-[state=active]:border-x-0 data-[state=active]:border-t-0 data-[state=active]:!border-b-primary data-[state=active]:bg-transparent data-[state=active]:text-primary data-[state=active]:!shadow-none"
               >
                 我的
               </TabsTrigger>
@@ -415,7 +415,7 @@ export function AgentGallery() {
                   key={sq.id}
                   value={sq.id}
                   title={sq.description || sq.name}
-                  className="h-14 rounded-none border-x-0 border-t-0 border-b-2 border-transparent bg-transparent px-5 text-[15px] shadow-none after:hidden data-[state=active]:border-x-0 data-[state=active]:border-t-0 data-[state=active]:!border-b-[#2166e8] data-[state=active]:bg-transparent data-[state=active]:text-[#2166e8] data-[state=active]:!shadow-none"
+                  className="h-12 rounded-none border-x-0 border-t-0 border-b-2 border-transparent bg-transparent px-5 text-[15px] shadow-none after:hidden data-[state=active]:border-x-0 data-[state=active]:border-t-0 data-[state=active]:!border-b-primary data-[state=active]:bg-transparent data-[state=active]:text-primary data-[state=active]:!shadow-none"
                 >
                   {sq.name}
                 </TabsTrigger>
@@ -423,7 +423,7 @@ export function AgentGallery() {
               {privateFeatureAvailable && (
                 <TabsTrigger
                   value="private"
-                  className="h-14 rounded-none border-x-0 border-t-0 border-b-2 border-transparent bg-transparent px-5 text-[15px] shadow-none after:hidden data-[state=active]:border-x-0 data-[state=active]:border-t-0 data-[state=active]:!border-b-[#2166e8] data-[state=active]:bg-transparent data-[state=active]:text-[#2166e8] data-[state=active]:!shadow-none"
+                  className="h-12 rounded-none border-x-0 border-t-0 border-b-2 border-transparent bg-transparent px-5 text-[15px] shadow-none after:hidden data-[state=active]:border-x-0 data-[state=active]:border-t-0 data-[state=active]:!border-b-primary data-[state=active]:bg-transparent data-[state=active]:text-primary data-[state=active]:!shadow-none"
                 >
                   <LockIcon className="mr-1 h-3.5 w-3.5" />
                   私密广场
@@ -433,7 +433,7 @@ export function AgentGallery() {
                 <TabsTrigger
                   value="builtin"
                   title="内置/功能型智能体（仅管理员可见）"
-                  className="h-14 rounded-none border-x-0 border-t-0 border-b-2 border-transparent bg-transparent px-5 text-[15px] shadow-none after:hidden data-[state=active]:border-x-0 data-[state=active]:border-t-0 data-[state=active]:!border-b-[#2166e8] data-[state=active]:bg-transparent data-[state=active]:text-[#2166e8] data-[state=active]:!shadow-none"
+                  className="h-12 rounded-none border-x-0 border-t-0 border-b-2 border-transparent bg-transparent px-5 text-[15px] shadow-none after:hidden data-[state=active]:border-x-0 data-[state=active]:border-t-0 data-[state=active]:!border-b-primary data-[state=active]:bg-transparent data-[state=active]:text-primary data-[state=active]:!shadow-none"
                 >
                   <BotIcon className="mr-1 h-3.5 w-3.5" />
                   内置智能体
@@ -441,24 +441,24 @@ export function AgentGallery() {
               )}
             </TabsList>
             {showSearchBar && (
-              <div className="flex flex-wrap items-center justify-end gap-5 pb-2.5">
-                <div className="relative w-[350px] max-w-full">
+              <div className="flex flex-wrap items-center justify-end gap-3 pb-2">
+                <div className="relative w-[320px] max-w-full">
                   <SearchIcon className="pointer-events-none absolute top-1/2 left-3.5 size-[18px] -translate-y-1/2 text-slate-500" />
                   <Input
                     value={search}
                     onChange={(event) => setSearch(event.target.value)}
                     placeholder="搜索智能体名称或描述"
-                    className="h-12 rounded-xl border-slate-200 bg-white pl-11 text-sm shadow-none placeholder:text-slate-400 focus-visible:border-blue-400 focus-visible:ring-blue-100 dark:border-slate-700 dark:bg-slate-900"
+                    className="h-11 rounded-xl border-slate-200 bg-white pl-11 text-sm shadow-none placeholder:text-slate-400 focus-visible:border-primary/50 focus-visible:ring-primary/15 dark:border-slate-700 dark:bg-slate-900"
                   />
                   {(activeTab === "private" ? isPrivateFetching : mainFetching) && (
-                    <Loader2 className="absolute top-1/2 right-3.5 size-4 -translate-y-1/2 animate-spin text-blue-500" />
+                    <Loader2 className="text-primary absolute top-1/2 right-3.5 size-4 -translate-y-1/2 animate-spin" />
                   )}
                 </div>
                 <Select
                   value={statusFilter}
                   onValueChange={(value) => setStatusFilter(value as AgentStatusFilter)}
                 >
-                  <SelectTrigger className="h-12 w-[156px] rounded-xl border-slate-200 px-4 text-sm shadow-none dark:border-slate-700">
+                  <SelectTrigger className="h-11 w-[150px] rounded-xl border-slate-200 px-4 text-sm shadow-none dark:border-slate-700">
                     <SelectValue />
                   </SelectTrigger>
                   <SelectContent position="popper" side="bottom" sideOffset={4}>
@@ -471,7 +471,7 @@ export function AgentGallery() {
                 </Select>
                 <Select value={sort} onValueChange={(v) => setSort(v as AgentSort)}>
                   <SelectTrigger
-                    className="h-12 w-[156px] rounded-xl border-slate-200 px-4 text-sm shadow-none dark:border-slate-700"
+                    className="h-11 w-[150px] rounded-xl border-slate-200 px-4 text-sm shadow-none dark:border-slate-700"
                     title="排序"
                   >
                     <ArrowDownUpIcon className="mr-1 size-4 text-slate-500" />
@@ -506,7 +506,7 @@ export function AgentGallery() {
               <button
                 type="button"
                 onClick={() => setPublisher(null)}
-              className="inline-flex items-center gap-1 rounded-full bg-blue-50 px-3 py-1 text-xs font-medium text-blue-700 transition-colors hover:bg-blue-100 dark:bg-blue-500/15 dark:text-blue-300"
+              className="bg-primary/5 text-primary hover:bg-primary/10 inline-flex items-center gap-1 rounded-full px-3 py-1 text-xs font-medium transition-colors dark:bg-primary/15 dark:text-primary"
                 title="点击清除发布者筛选"
               >
                 {publisher.label}
@@ -514,7 +514,7 @@ export function AgentGallery() {
               </button>
             </div>
           )}
-          <div className="py-5 text-[15px] text-slate-600 dark:text-slate-300">
+          <div className="py-4 text-[15px] text-slate-600 dark:text-slate-300">
             共 {activeTotal} 个智能体
           </div>
         </div>
@@ -523,7 +523,7 @@ export function AgentGallery() {
           <TabsContent
             key={sq.id}
             value={sq.id}
-            className="mt-0 flex-1 overflow-y-auto px-[38px] pb-8"
+            className="mt-0 flex-1 overflow-y-auto px-5 pb-6 sm:px-8"
           >
             {renderListBody({
               list: mainAgents,
@@ -536,7 +536,7 @@ export function AgentGallery() {
           </TabsContent>
         ))}
 
-        <TabsContent value="mine" className="mt-0 flex-1 overflow-y-auto px-[38px] pb-8">
+        <TabsContent value="mine" className="mt-0 flex-1 overflow-y-auto px-5 pb-6 sm:px-8">
           {renderListBody({
             list: mainAgents,
             total: mainTotal,
@@ -549,7 +549,7 @@ export function AgentGallery() {
         </TabsContent>
 
         {isAdmin && (
-          <TabsContent value="builtin" className="mt-0 flex-1 overflow-y-auto px-[38px] pb-8">
+          <TabsContent value="builtin" className="mt-0 flex-1 overflow-y-auto px-5 pb-6 sm:px-8">
             {renderListBody({
               list: mainAgents,
               total: mainTotal,
@@ -564,7 +564,7 @@ export function AgentGallery() {
         {privateFeatureAvailable && (
           <TabsContent
             value="private"
-            className="mt-0 flex-1 overflow-y-auto px-[38px] pb-8"
+            className="mt-0 flex-1 overflow-y-auto px-5 pb-6 sm:px-8"
           >
             {renderPrivateTab()}
           </TabsContent>
diff --git a/frontend-web/src/components/workspace/cm-chat-sidebar.tsx b/frontend-web/src/components/workspace/cm-chat-sidebar.tsx
index 6aa80501..1656736a 100644
--- a/frontend-web/src/components/workspace/cm-chat-sidebar.tsx
+++ b/frontend-web/src/components/workspace/cm-chat-sidebar.tsx
@@ -18,6 +18,7 @@ import type { MouseEvent } from "react";
 import { useNavigate } from "react-router-dom";
 
 import { cn } from "@/lib/utils";
+import { useTheme } from "@/contexts/ThemeContext";
 
 import { AgentBrandIcon } from "./agents/agent-brand-icon";
 import { RecentChatList } from "./recent-chat-list";
@@ -63,6 +64,8 @@ export function CmChatSidebar({
 }) {
   const pathname = usePathname();
   const navigate = useNavigate();
+  const { theme } = useTheme();
+  const brandLogoSrc = theme === "light" ? "/cm-assistant-logo-red.png" : "/cm-assistant-logo.png";
 
   const handleNewChat = (event: MouseEvent<HTMLAnchorElement>) => {
     if (event.metaKey || event.ctrlKey || event.shiftKey || event.button === 1) return;
@@ -78,10 +81,10 @@ export function CmChatSidebar({
           onClick={onCollapse}
           aria-label="展开侧边栏"
           title="展开侧边栏"
-          className="mx-auto mt-2 flex size-11 shrink-0 items-center justify-center rounded-xl transition-colors hover:bg-slate-100 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-blue-500/40 dark:hover:bg-slate-900"
+          className="mx-auto mt-2 flex size-11 shrink-0 items-center justify-center rounded-xl transition-colors hover:bg-slate-100 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-primary/40 dark:hover:bg-slate-900"
         >
           <img
-            src="/cm-assistant-logo.png"
+            src={brandLogoSrc}
             alt="CM 助手"
             className="size-10 object-contain"
           />
@@ -105,9 +108,9 @@ export function CmChatSidebar({
                 aria-label={item.label}
                 title={item.label}
                 className={cn(
-                  "flex size-10 items-center justify-center rounded-xl transition-colors focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-blue-500/40",
+                  "flex size-10 items-center justify-center rounded-xl transition-colors focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-primary/40",
                   active
-                    ? "bg-[#edf4ff] text-[#165ee8] dark:bg-blue-500/15 dark:text-blue-300"
+                    ? "bg-primary/10 text-primary dark:bg-primary/15 dark:text-primary"
                     : "text-slate-600 hover:bg-slate-100 hover:text-slate-950 dark:text-slate-300 dark:hover:bg-slate-900 dark:hover:text-white",
                 )}
               >
@@ -127,7 +130,7 @@ export function CmChatSidebar({
             href="/page/workspace/settings"
             aria-label="设置和更多"
             title="设置和更多"
-            className="flex size-10 items-center justify-center rounded-xl text-slate-600 transition-colors hover:bg-slate-100 hover:text-slate-950 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-blue-500/40 dark:text-slate-300 dark:hover:bg-slate-900 dark:hover:text-white"
+            className="flex size-10 items-center justify-center rounded-xl text-slate-600 transition-colors hover:bg-slate-100 hover:text-slate-950 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-primary/40 dark:text-slate-300 dark:hover:bg-slate-900 dark:hover:text-white"
           >
             <Settings className="size-[19px]" strokeWidth={1.8} />
           </Link>
@@ -138,27 +141,27 @@ export function CmChatSidebar({
 
   return (
     <div className="flex h-full min-h-0 flex-col overflow-hidden border-r border-slate-200/80 bg-white text-slate-900 dark:border-slate-800 dark:bg-slate-950 dark:text-slate-100">
-      <div className="flex shrink-0 items-center gap-2 px-6 pt-4 pb-3">
-        <Link href={NEW_CHAT_PATH} className="flex min-w-0 flex-1 items-center gap-3.5 outline-none focus-visible:ring-2 focus-visible:ring-blue-500/40">
+      <div className="flex shrink-0 items-center gap-1.5 px-4 pt-3.5 pb-2.5">
+        <Link href={NEW_CHAT_PATH} className="flex min-w-0 flex-1 items-center gap-2.5 outline-none focus-visible:ring-2 focus-visible:ring-primary/40">
           <img
-            src="/cm-assistant-logo.png"
+            src={brandLogoSrc}
             alt="CM 助手"
-            className="size-10 shrink-0 object-contain"
+            className="size-9 shrink-0 object-contain"
           />
-          <span className="truncate text-[20px] font-semibold tracking-[-0.025em]">CM 助手</span>
+          <span className="truncate text-[19px] font-semibold tracking-[-0.025em]">CM 助手</span>
         </Link>
         <button
           type="button"
           onClick={onCollapse}
           aria-label="收起侧边栏"
           title="收起侧边栏"
-          className="flex size-8 shrink-0 items-center justify-center rounded-md text-slate-500 transition-colors hover:bg-slate-100 hover:text-slate-900 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-blue-500/40 dark:hover:bg-slate-900 dark:hover:text-white"
+          className="flex size-8 shrink-0 items-center justify-center rounded-md text-slate-500 transition-colors hover:bg-slate-100 hover:text-slate-900 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-primary/40 dark:hover:bg-slate-900 dark:hover:text-white"
         >
           <PanelLeftClose className="size-[18px]" strokeWidth={1.8} />
         </button>
       </div>
 
-      <nav className="shrink-0 px-4 pt-1" aria-label="工作台导航">
+      <nav className="shrink-0 px-3 pt-1" aria-label="工作台导航">
         <div className="space-y-1">
           {NAV_ITEMS.map((item) => {
             const active = item.href === NEW_CHAT_PATH
@@ -174,9 +177,9 @@ export function CmChatSidebar({
                 onClick={item.href === NEW_CHAT_PATH ? handleNewChat : undefined}
                 aria-current={active ? "page" : undefined}
                 className={cn(
-                  "flex h-11 items-center gap-3 rounded-xl px-4 text-[14px] font-medium transition-colors",
+                  "flex h-10 items-center gap-3 rounded-xl px-3 text-[14px] font-medium transition-colors",
                   active
-                    ? "bg-[#edf4ff] text-[#165ee8] dark:bg-blue-500/15 dark:text-blue-300"
+                    ? "bg-primary/10 text-primary dark:bg-primary/15 dark:text-primary"
                     : "text-slate-600 hover:bg-slate-100 hover:text-slate-950 dark:text-slate-300 dark:hover:bg-slate-900 dark:hover:text-white",
                 )}
               >
diff --git a/frontend-web/src/components/workspace/custom-prompt-menu.tsx b/frontend-web/src/components/workspace/custom-prompt-menu.tsx
index 8d168b48..66c00845 100644
--- a/frontend-web/src/components/workspace/custom-prompt-menu.tsx
+++ b/frontend-web/src/components/workspace/custom-prompt-menu.tsx
@@ -119,7 +119,7 @@ export function CustomPromptBar({
                     title={prompt.content}
                     className={cn(
                       "border-border/60 bg-muted/40 text-foreground/80 hover:bg-muted hover:text-foreground hover:border-border max-w-[200px] shrink-0 truncate rounded-full border px-3 py-1 text-xs font-medium shadow-sm transition-colors",
-                      compact && "border-slate-200 bg-white px-3.5 py-1.5 text-[12px] text-slate-600 shadow-none hover:border-blue-200 hover:bg-blue-50/60 hover:text-blue-700",
+                      compact && "border-slate-200 bg-white px-3.5 py-1.5 text-[12px] text-slate-600 shadow-none hover:border-primary/25 hover:bg-primary/5 hover:text-primary",
                       "dark:border-slate-600/70 dark:bg-slate-700/40 dark:text-slate-200 dark:hover:bg-slate-700",
                     )}
                   >
@@ -151,7 +151,7 @@ export function CustomPromptBar({
           className={cn(
             "text-muted-foreground hover:text-foreground hover:bg-muted/70 h-7 w-7 shrink-0 rounded-full",
             compact &&
-              "h-9 w-9 rounded-xl border border-slate-200 bg-white text-slate-600 shadow-[0_6px_18px_-14px_rgba(15,23,42,0.4)] hover:border-blue-200 hover:bg-blue-50 hover:text-blue-700 dark:border-slate-700 dark:bg-slate-900",
+              "h-9 w-9 rounded-xl border border-slate-200 bg-white text-slate-600 shadow-[0_6px_18px_-14px_rgba(15,23,42,0.4)] hover:border-primary/25 hover:bg-primary/5 hover:text-primary dark:border-slate-700 dark:bg-slate-900",
           )}
           title="管理常用提示词"
           aria-label="管理常用提示词"
diff --git a/frontend-web/src/components/workspace/input-box.tsx b/frontend-web/src/components/workspace/input-box.tsx
index e63eea63..6e5c64c0 100644
--- a/frontend-web/src/components/workspace/input-box.tsx
+++ b/frontend-web/src/components/workspace/input-box.tsx
@@ -637,7 +637,7 @@ export function InputBox({
               title="调整提示词顺序"
               aria-label="调整提示词顺序"
               onClick={() => setCompactPromptOrder((current) => current + 1)}
-              className="flex size-7 items-center justify-center rounded-full text-slate-400 transition-colors hover:bg-slate-100 hover:text-blue-600 focus-visible:outline-none focus-visible:ring-4 focus-visible:ring-blue-500/15 dark:hover:bg-slate-800 dark:hover:text-blue-300"
+              className="flex size-7 items-center justify-center rounded-full text-slate-400 transition-colors hover:bg-slate-100 hover:text-primary focus-visible:outline-none focus-visible:ring-4 focus-visible:ring-primary/15 dark:hover:bg-slate-800 dark:hover:text-primary"
             >
               <RefreshCwIcon className="size-3.5" strokeWidth={1.8} />
             </button>
@@ -650,7 +650,7 @@ export function InputBox({
                   type="button"
                   data-quick-prompt={item.id}
                   title={item.content}
-                  className="inline-flex min-h-11 max-w-full items-center justify-center rounded-xl border border-[#e5e7eb] bg-white px-4 py-2 text-center text-[14px] font-normal leading-5 text-slate-700 shadow-[0_2px_6px_rgba(15,23,42,0.025)] transition-[background-color,border-color,box-shadow] hover:border-slate-300 hover:bg-slate-50 hover:text-slate-900 hover:shadow-[0_4px_10px_rgba(15,23,42,0.04)] focus-visible:outline-none focus-visible:ring-4 focus-visible:ring-blue-500/15 dark:border-slate-700 dark:bg-slate-900 dark:text-slate-200 dark:hover:border-slate-600 dark:hover:bg-slate-800"
+                  className="inline-flex min-h-11 max-w-full items-center justify-center rounded-xl border border-[#e5e7eb] bg-white px-4 py-2 text-center text-[14px] font-normal leading-5 text-slate-700 shadow-[0_2px_6px_rgba(15,23,42,0.025)] transition-[background-color,border-color,box-shadow] hover:border-primary/25 hover:bg-primary/5 hover:text-slate-900 hover:shadow-[0_4px_10px_rgba(15,23,42,0.04)] focus-visible:outline-none focus-visible:ring-4 focus-visible:ring-primary/15 dark:border-slate-700 dark:bg-slate-900 dark:text-slate-200 dark:hover:border-primary/35 dark:hover:bg-primary/10"
                   onClick={() => {
                     textInput.setInput(item.content);
                     requestAnimationFrame(() =>
@@ -748,7 +748,7 @@ export function InputBox({
             : "*:data-[slot='input-group']:rounded-3xl",
           // 紧凑落地态（CM 参考图）：白卡 + 细边 + 轻阴影 + 主色聚焦环（无旋转彩边）
           compact && isNewThread
-            ? "overflow-hidden rounded-[24px] border border-slate-200/90 bg-white shadow-[0_18px_50px_-32px_rgba(37,99,235,0.6),0_8px_24px_-20px_rgba(15,23,42,0.35)] transition-all duration-300 focus-within:border-blue-300 focus-within:ring-4 focus-within:ring-blue-500/10 dark:border-slate-700 dark:bg-slate-800"
+            ? "overflow-hidden rounded-[24px] border border-slate-200/90 bg-white shadow-[0_18px_50px_-32px_rgba(15,23,42,0.22),0_8px_24px_-20px_rgba(15,23,42,0.35)] transition-all duration-300 focus-within:border-primary/35 focus-within:ring-4 focus-within:ring-primary/10 dark:border-slate-700 dark:bg-slate-800"
             : // landing 态：透明，让外层 gemini-gradient-border 提供白卡 + 旋转描边
               // 对话态：常规白卡 + 中性边框 + 轻阴影
               isNewThread
@@ -844,7 +844,7 @@ export function InputBox({
                   "gap-1.5! rounded-full px-3! shadow-none",
                   compact && "rounded-lg px-2.5! py-1! text-[11px] font-medium",
                   memoryInjectionEnabled
-                    ? "border border-blue-300 bg-blue-50 text-blue-700 ring-1 ring-blue-300/35 hover:bg-blue-100 dark:border-cyan-300/70 dark:bg-cyan-400/20 dark:text-cyan-50 dark:ring-cyan-300/35 dark:shadow-[0_0_0_1px_rgba(34,211,238,0.18),0_0_18px_rgba(34,211,238,0.18)] dark:hover:bg-cyan-400/25"
+                    ? "border border-primary/35 bg-primary/5 text-primary ring-1 ring-primary/20 hover:bg-primary/10 dark:border-primary/45 dark:bg-primary/15 dark:text-primary dark:ring-primary/25 dark:hover:bg-primary/20"
                     : compact
                       ? "border border-transparent bg-muted/40 text-muted-foreground hover:bg-muted hover:text-foreground"
                       : "border-0 bg-transparent text-muted-foreground hover:bg-muted/70 hover:text-foreground dark:text-slate-400 dark:hover:bg-slate-700/70 dark:hover:text-slate-100",
@@ -852,7 +852,7 @@ export function InputBox({
                 onClick={handleMemoryInjectionToggle}
               >
                 {memoryInjectionEnabled && (
-                  <CheckIcon className="size-3 text-blue-700 dark:text-cyan-50" />
+                  <CheckIcon className="text-primary size-3" />
                 )}
                 <BrainCircuitIcon className="size-3" />
                 <span className="text-xs font-normal">记忆</span>
@@ -1303,9 +1303,9 @@ export function InputBox({
             </ModelSelector>
             <PromptInputSubmit
               className={cn(
-                "rounded-full border-border bg-background shadow-sm hover:bg-muted dark:bg-blue-500 dark:border-blue-500 dark:text-white dark:hover:bg-blue-400 dark:shadow-none",
+                "rounded-full border-border bg-background shadow-sm hover:bg-muted dark:bg-primary dark:border-primary dark:text-primary-foreground dark:hover:bg-primary/90 dark:shadow-none",
                 compact &&
-                  "size-10 rounded-full border-0 bg-blue-600 text-white shadow-[0_8px_18px_-10px_rgba(37,99,235,0.9)] hover:bg-blue-700 disabled:bg-muted disabled:text-muted-foreground/40 dark:border-0 dark:bg-blue-500 dark:text-white dark:hover:bg-blue-400 dark:disabled:bg-muted",
+                  "bg-primary hover:bg-primary/90 size-10 rounded-full border-0 text-primary-foreground shadow-[0_8px_18px_-10px_rgba(15,23,42,0.34)] disabled:bg-muted disabled:text-muted-foreground/40 dark:border-0 dark:bg-primary dark:text-primary-foreground dark:hover:bg-primary/90 dark:disabled:bg-muted",
               )}
               disabled={disabled}
               variant="outline"
diff --git a/frontend-web/src/components/workspace/settings/skill-settings-page.tsx b/frontend-web/src/components/workspace/settings/skill-settings-page.tsx
index 7dd43c7b..a6d91f4f 100644
--- a/frontend-web/src/components/workspace/settings/skill-settings-page.tsx
+++ b/frontend-web/src/components/workspace/settings/skill-settings-page.tsx
@@ -762,7 +762,7 @@ export function SkillRow({
       {isFromOthers && (
         <Badge
           variant="outline"
-          className="border-blue-500/30 text-blue-700 dark:text-blue-300 text-xs"
+          className="border-primary/30 text-primary text-xs dark:text-primary"
           title={
             skill.owner_user_id
               ? t.settings.skills.badgeFromOthersTitle.replace(
@@ -1027,7 +1027,7 @@ export function SkillRow({
       : skill.source === "agent"
         ? {
             Icon: WorkflowIcon,
-            className: "bg-[#2166e8] text-white shadow-[0_6px_16px_rgba(37,99,235,0.22)]",
+            className: "bg-primary text-primary-foreground shadow-[0_6px_16px_rgba(15,23,42,0.18)]",
           }
         : {
             Icon: Upload,
@@ -1044,7 +1044,7 @@ export function SkillRow({
   return (
     <>
       {isCard ? (
-        <div className="flex h-full min-w-0 flex-col rounded-xl border border-slate-200 bg-white p-5 shadow-[0_5px_18px_rgba(15,23,42,0.035)] transition-[border-color,box-shadow] hover:border-blue-200 hover:shadow-[0_10px_28px_rgba(37,99,235,0.07)] dark:border-slate-800 dark:bg-slate-900 dark:text-white">
+        <div className="flex h-full min-w-0 flex-col rounded-2xl border border-slate-200 bg-white p-5 shadow-[0_5px_18px_rgba(15,23,42,0.035)] transition-[background-color,border-color,box-shadow] hover:border-primary/25 hover:bg-primary/[0.025] hover:shadow-[0_10px_28px_rgba(15,23,42,0.07)] dark:border-slate-800 dark:bg-slate-900 dark:text-white">
           <div
             className="min-w-0 flex-1 cursor-pointer"
             onClick={() => setDetailOpen(true)}
@@ -1075,10 +1075,10 @@ export function SkillRow({
           </div>
         </div>
       ) : (
-        <div className="group/skill-card w-full rounded-xl border border-slate-200 bg-white px-5 py-4 shadow-[0_5px_18px_rgba(15,23,42,0.03)] transition-[border-color,box-shadow] hover:border-blue-200 hover:shadow-[0_10px_28px_rgba(37,99,235,0.07)] dark:border-slate-800 dark:bg-slate-900 dark:text-white">
-          <div className="grid min-w-0 grid-cols-1 gap-4 xl:grid-cols-[minmax(0,1.65fr)_minmax(150px,0.72fr)_minmax(100px,0.42fr)_minmax(132px,0.58fr)_auto] xl:items-center xl:gap-x-6">
-            <div className="flex min-w-0 cursor-pointer items-start gap-4" onClick={() => setDetailOpen(true)}>
-              <div className={cn("flex size-[60px] shrink-0 items-center justify-center rounded-full", iconStyle.className)}>
+        <div className="group/skill-card w-full rounded-2xl border border-slate-200 bg-white px-5 py-3.5 shadow-[0_5px_18px_rgba(15,23,42,0.03)] transition-[background-color,border-color,box-shadow] hover:border-primary/25 hover:bg-primary/[0.025] hover:shadow-[0_10px_28px_rgba(15,23,42,0.07)] dark:border-slate-800 dark:bg-slate-900 dark:text-white">
+          <div className="grid min-w-0 grid-cols-1 gap-4 xl:grid-cols-[minmax(0,1.55fr)_minmax(160px,0.78fr)_minmax(110px,0.42fr)_minmax(142px,0.56fr)_auto] xl:items-center xl:gap-x-5">
+            <div className="flex min-w-0 cursor-pointer items-start gap-3.5" onClick={() => setDetailOpen(true)}>
+              <div className={cn("flex size-14 shrink-0 items-center justify-center rounded-2xl", iconStyle.className)}>
                 <SkillIcon className="size-7" />
               </div>
               <div className="min-w-0 flex-1 pt-0.5">
@@ -1097,7 +1097,7 @@ export function SkillRow({
                     }}
                     className={cn(
                       "mt-2 flex max-w-full items-center gap-1 text-xs text-slate-400",
-                      skill.owner_user_id && onPublisherClick && "cursor-pointer hover:text-blue-600 hover:underline",
+                      skill.owner_user_id && onPublisherClick && "cursor-pointer hover:text-primary hover:underline",
                     )}
                   >
                     <UserIcon className="size-3.5 shrink-0" />
diff --git a/frontend-web/src/components/workspace/user-identity-badge.tsx b/frontend-web/src/components/workspace/user-identity-badge.tsx
index a3101b56..b68241c5 100644
--- a/frontend-web/src/components/workspace/user-identity-badge.tsx
+++ b/frontend-web/src/components/workspace/user-identity-badge.tsx
@@ -45,7 +45,7 @@ export function UserIdentityBadge({
         className={cn(
           "bg-muted text-muted-foreground relative flex size-7 shrink-0 items-center justify-center rounded-full",
           variant === "topbar" &&
-            "size-8 bg-gradient-to-br from-blue-500 to-indigo-600 text-white shadow-[0_4px_12px_-6px_rgba(37,99,235,0.8)] ring-1 ring-blue-500/10 dark:from-blue-400 dark:to-indigo-500",
+            "bg-primary text-primary-foreground size-8 shadow-[0_4px_12px_-6px_rgba(15,23,42,0.26)] ring-1 ring-primary/15",
         )}
       >
         <UserRound className={cn("size-3.5", variant === "topbar" && "size-4")} />
diff --git a/frontend-web/src/pages/WorkspaceRoutes.tsx b/frontend-web/src/pages/WorkspaceRoutes.tsx
index be415952..c338f5df 100644
--- a/frontend-web/src/pages/WorkspaceRoutes.tsx
+++ b/frontend-web/src/pages/WorkspaceRoutes.tsx
@@ -136,7 +136,9 @@ export function WorkspaceLayout({
         {
           '--page-sidebar-width': pageSidebarWidth,
           '--header-height': headerHidden ? '0rem' : '4rem',
-          '--sidebar-width': '18.5rem',
+          // Shared by red, blue, and dark workbench themes. Keep this in sync
+          // with the Sidebar primitive instead of giving one route a wider rail.
+          '--sidebar-width': '14rem',
         } as CSSProperties
       }
       key={String(compactWorkspaceSidebar)}
diff --git a/frontend-web/src/styles/globals.css b/frontend-web/src/styles/globals.css
index ce84a433..306e464a 100644
--- a/frontend-web/src/styles/globals.css
+++ b/frontend-web/src/styles/globals.css
@@ -1290,9 +1290,9 @@ html.lightblue .tiptap-writing-editor .ProseMirror ::selection {
  * agent surfaces on classic rgba()/hex colours instead.
  * -------------------------------------------------------------------------- */
 .agent-avatar {
-  background-color: #edf4ff;
-  color: #1f5fdb;
-  box-shadow: inset 0 0 0 1px rgba(59, 130, 246, 0.16);
+  background-color: #fff1f0;
+  color: #be2323;
+  box-shadow: inset 0 0 0 1px rgba(190, 35, 35, 0.16);
 }
 
 .dark .agent-avatar {