diff --git a/web/hwlab-cloud-web/src/components/workbench/WorkbenchMessageCard.test.ts b/web/hwlab-cloud-web/src/components/workbench/WorkbenchMessageCard.test.ts
index b42ed397..01d79650 100644
--- a/web/hwlab-cloud-web/src/components/workbench/WorkbenchMessageCard.test.ts
+++ b/web/hwlab-cloud-web/src/components/workbench/WorkbenchMessageCard.test.ts
@@ -5,6 +5,16 @@ import { describe, expect, it } from "vitest";
 
 import WorkbenchMessageCard from "./WorkbenchMessageCard.vue";
 
+function componentStubs() {
+  return {
+    TraceTimeline: { template: "<div />" },
+    LoadingState: { template: "<div />" },
+    MessageMarkdown: { template: "<div />" },
+    ApiErrorDiagnostic: { template: "<div />" },
+    StatusBadge: { template: "<div />" }
+  };
+}
+
 describe("WorkbenchMessageCard semantic retry visibility", () => {
   it("shows Git mirror clone progress as runtime preparation", () => {
     const wrapper = mount(WorkbenchMessageCard, {
@@ -41,11 +51,13 @@ describe("WorkbenchMessageCard semantic retry visibility", () => {
           }
         }
       },
-      global: { stubs: { TraceTimeline: true, LoadingState: true, MessageMarkdown: true, ApiErrorDiagnostic: true, StatusBadge: true } }
+      global: { stubs: componentStubs() }
     });
     expect(wrapper.text()).toContain("运行环境准备：正在从 Git mirror 获取 Runner 源码");
     expect(wrapper.text()).toContain("第 1/3 次源码获取进行中");
     expect(wrapper.text()).not.toContain("基础设施故障");
+    expect(wrapper.get(".semantic-failure-banner").attributes("data-emphasis")).toBe("quiet");
+    expect(wrapper.find(".semantic-failure-banner code").exists()).toBe(false);
     wrapper.unmount();
   });
 
@@ -86,17 +98,12 @@ describe("WorkbenchMessageCard semantic retry visibility", () => {
         }
       },
       global: {
-        stubs: {
-          TraceTimeline: true,
-          LoadingState: true,
-          MessageMarkdown: true,
-          ApiErrorDiagnostic: true,
-          StatusBadge: true
-        }
+        stubs: componentStubs()
       }
     });
 
     const banner = wrapper.get(".semantic-failure-banner");
+    expect(banner.attributes("data-emphasis")).toBe("alert");
     expect(banner.text()).toContain("基础设施故障：Runner 镜像仓库暂时不可达");
     expect(banner.text()).toContain("第 2/5 次重试已安排");
     expect(banner.text()).toMatch(/预计 \d+ 秒后开始/u);
diff --git a/web/hwlab-cloud-web/src/components/workbench/WorkbenchMessageCard.vue b/web/hwlab-cloud-web/src/components/workbench/WorkbenchMessageCard.vue
index 1bb82dea..da1254c2 100644
--- a/web/hwlab-cloud-web/src/components/workbench/WorkbenchMessageCard.vue
+++ b/web/hwlab-cloud-web/src/components/workbench/WorkbenchMessageCard.vue
@@ -123,7 +123,7 @@ function traceStorageKey(message: ChatMessage): string {
   return `${props.storageKeyPrefix}.${message.traceId ?? message.runnerTrace?.traceId ?? message.id}`;
 }
 
-function semanticRuntimeStatusView(message: ChatMessage, currentTimeMs: number): { title: string; detail: string; tone: string; code: string | null } | null {
+function semanticRuntimeStatusView(message: ChatMessage, currentTimeMs: number): { title: string; detail: string; tone: string; emphasis: "quiet" | "alert"; code: string | null } | null {
   const events = Array.isArray(message.runnerTrace?.events) ? message.runnerTrace.events : [];
   const event = [...events].reverse().find((item) => typeof item.failureDomain === "string" && typeof item.retryPhase === "string");
   if (!event) return null;
@@ -135,10 +135,10 @@ function semanticRuntimeStatusView(message: ChatMessage, currentTimeMs: number):
   const progress = attempt !== null && maxAttempts !== null ? `第 ${attempt}/${maxAttempts} 次` : "本次";
   const code = firstText(event.failureCode, event.code);
   if (code === "git-mirror-fetch-in-progress") {
-    return { title: `运行环境准备：${summary}`, detail: `${progress}源码获取进行中`, tone: "info", code };
+    return { title: `运行环境准备：${summary}`, detail: `${progress}源码获取进行中`, tone: "info", emphasis: "quiet", code };
   }
   if (code === "git-mirror-fetch-completed") {
-    return { title: `运行环境准备：${summary}`, detail: "源码获取完成，正在启动 Runner", tone: "recovered", code };
+    return { title: `运行环境准备：${summary}`, detail: "源码获取完成，正在启动 Runner", tone: "recovered", emphasis: "quiet", code };
   }
   let detail = "正在判定有限重试";
   let tone = "warning";
@@ -159,6 +159,7 @@ function semanticRuntimeStatusView(message: ChatMessage, currentTimeMs: number):
     title: `${domain}：${summary}`,
     detail,
     tone,
+    emphasis: "alert",
     code
   };
 }
@@ -198,10 +199,11 @@ function finiteInteger(value: unknown): number | null {
         <button v-if="detailEnabled && message.role === 'agent'" class="message-detail-button" type="button" aria-label="运行详情" title="运行详情" @click="emit('details', message)">!</button>
       </div>
     </header>
-    <section v-if="semanticRuntimeStatus" class="semantic-failure-banner" :data-tone="semanticRuntimeStatus.tone" role="status" aria-live="polite">
+    <section v-if="semanticRuntimeStatus" class="semantic-failure-banner" :data-tone="semanticRuntimeStatus.tone" :data-emphasis="semanticRuntimeStatus.emphasis" role="status" aria-live="polite" :title="semanticRuntimeStatus.code ? `${semanticRuntimeStatus.title} · ${semanticRuntimeStatus.detail} · ${semanticRuntimeStatus.code}` : undefined">
+      <span class="semantic-status-marker" aria-hidden="true" />
       <strong>{{ semanticRuntimeStatus.title }}</strong>
       <span>{{ semanticRuntimeStatus.detail }}</span>
-      <code v-if="semanticRuntimeStatus.code">{{ semanticRuntimeStatus.code }}</code>
+      <code v-if="semanticRuntimeStatus.code && semanticRuntimeStatus.emphasis === 'alert'">{{ semanticRuntimeStatus.code }}</code>
     </section>
     <TraceTimeline v-if="message.role === 'agent' && message.runnerTrace" :trace="message.runnerTrace" :auto-expanded="autoExpanded" :storage-key="traceStorageKey(message)" final-response-placement="outer" :outer-final-response-text="visibleText" />
     <LoadingState v-if="isAwaitingAgentBody(message)" class="message-loading" label="思考中..." compact />
@@ -222,15 +224,53 @@ function finiteInteger(value: unknown): number | null {
   padding: 0.55rem 0.7rem;
 }
 
+.semantic-status-marker {
+  display: none;
+}
+
+.semantic-failure-banner[data-emphasis="quiet"] {
+  display: flex;
+  align-items: center;
+  gap: 0.45rem;
+  min-width: 0;
+  margin: 0.25rem 0;
+  border-left-width: 2px;
+  border-radius: 0.2rem;
+  background: transparent;
+  padding: 0.2rem 0.45rem;
+  color: #475569;
+  font-size: 0.82rem;
+  line-height: 1.35;
+}
+
+.semantic-failure-banner[data-emphasis="quiet"] .semantic-status-marker {
+  display: block;
+  flex: 0 0 0.42rem;
+  width: 0.42rem;
+  height: 0.42rem;
+  border-radius: 50%;
+  background: currentColor;
+}
+
+.semantic-failure-banner[data-emphasis="quiet"] strong {
+  overflow: hidden;
+  min-width: 0;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.semantic-failure-banner[data-emphasis="quiet"] span:not(.semantic-status-marker) {
+  flex: 0 0 auto;
+  color: #64748b;
+}
+
 .semantic-failure-banner[data-tone="recovered"] {
   border-left-color: #15803d;
-  background: #f0fdf4;
   color: #166534;
 }
 
 .semantic-failure-banner[data-tone="info"] {
   border-left-color: #2563eb;
-  background: #eff6ff;
   color: #1e40af;
 }