diff --git a/frontend/src/api/pipeline.ts b/frontend/src/api/pipeline.ts
index 637ba665..8c63d79c 100644
--- a/frontend/src/api/pipeline.ts
+++ b/frontend/src/api/pipeline.ts
@@ -205,6 +205,15 @@ export async function saveHypothesis(card: CardDraftInput, sentence?: string): P
   return data.item
 }
 
+// 决议O②:人工判卡片死(危险区)——卡下活因子陪葬,cause=reason+(随卡判死)
+export async function postHypothesisVerdict(
+  id: string, reason: string,
+): Promise<{ ok: boolean; buried: string[] }> {
+  const { data } = await apiClient.post<{ ok: boolean; buried: string[] }>(
+    `/pipeline/hypotheses/${id}/verdict`, { reason })
+  return data
+}
+
 export async function getFactors(): Promise<PipelineFactor[]> {
   const { data } = await apiClient.get<{ items: PipelineFactor[] }>('/pipeline/factors')
   return data.items
diff --git a/frontend/src/views/pipeline/HypothesisPool.spec.ts b/frontend/src/views/pipeline/HypothesisPool.spec.ts
index 612f8056..5070d42d 100644
--- a/frontend/src/views/pipeline/HypothesisPool.spec.ts
+++ b/frontend/src/views/pipeline/HypothesisPool.spec.ts
@@ -8,7 +8,7 @@ import { hypothesesMock } from '@/mock/pipelineData'
 
 vi.mock('@/api/pipeline', async (importOriginal) => {
   const actual = await importOriginal<typeof import('@/api/pipeline')>()
-  return { ...actual, getHypotheses: vi.fn(), getGraveyardFactors: vi.fn(), draftHypothesis: vi.fn(), saveHypothesis: vi.fn(), getDecomposeJobs: vi.fn() }
+  return { ...actual, getHypotheses: vi.fn(), getGraveyardFactors: vi.fn(), draftHypothesis: vi.fn(), saveHypothesis: vi.fn(), getDecomposeJobs: vi.fn(), postHypothesisVerdict: vi.fn() }
 })
 
 describe('HypothesisPool.vue', () => {
@@ -68,6 +68,34 @@ describe('HypothesisPool.vue', () => {
     expect(dead[0].text()).toContain('fa高管增持超额')
     expect(dead[0].attributes('title')).toContain('IC 两窗反号')
   })
+  it('决议O②:判死卡片弹窗列陪葬清单+确认后调端点', async () => {
+    vi.mocked(api.getHypotheses).mockResolvedValue(hypothesesMock)
+    vi.mocked(api.postHypothesisVerdict).mockResolvedValue(
+      { ok: true, buried: ['fa高管增持量比'] })
+    // el-dialog teleport 到 document.body,须 attachTo 才能从真实 DOM 查弹窗内容
+    const w = mount(HypothesisPool, { global: { plugins: [ElementPlus] }, attachTo: document.body })
+    await flushPromises()
+    await w.findAll('.wiz-btn.danger')[0].trigger('click')
+    await flushPromises()
+    const dlg = document.querySelector('.el-dialog')
+    expect(dlg?.textContent).toContain('判死卡片')
+    expect(dlg?.textContent).toContain('陪葬清单（1 条）')   // mock 1 死 1 活,只列活
+    expect(dlg?.textContent).toContain('fa高管增持量比')
+    // 填死因+确认
+    const ta = dlg?.querySelector('textarea') as HTMLTextAreaElement
+    ta.value = '逻辑前提失效'
+    ta.dispatchEvent(new Event('input', { bubbles: true }))
+    await flushPromises()
+    const btn = Array.from(document.querySelectorAll('.el-dialog button'))
+      .find((b) => b.textContent?.includes('确认判死'))
+    btn?.click()
+    await flushPromises()
+    expect(api.postHypothesisVerdict).toHaveBeenCalledWith(
+      expect.any(String), '逻辑前提失效')
+    // 清理:防 teleport 残留污染后续用例
+    w.unmount()
+    document.querySelectorAll('.el-overlay').forEach((el) => el.remove())
+  })
 })
 
 describe('向导区(P4-1)', () => {
diff --git a/frontend/src/views/pipeline/HypothesisPool.vue b/frontend/src/views/pipeline/HypothesisPool.vue
index 0a16c7d6..d97849ce 100644
--- a/frontend/src/views/pipeline/HypothesisPool.vue
+++ b/frontend/src/views/pipeline/HypothesisPool.vue
@@ -1,8 +1,9 @@
 <script setup lang="ts">
 import { computed, onMounted, onUnmounted, ref } from 'vue'
 import { useRouter } from 'vue-router'
+import { ElMessage } from 'element-plus'
 import { getHypotheses, getGraveyardFactors, draftHypothesis, saveHypothesis, startDecompose,
-         getDecomposeJobs, draftInflight } from '@/api/pipeline'
+         getDecomposeJobs, draftInflight, postHypothesisVerdict } from '@/api/pipeline'
 import type { Hypothesis, CardDraftInput, DecomposeJob, GraveyardFactor } from '@/api/pipeline'
 import StatusChip from '@/components/pipeline/StatusChip.vue'
 import { HYPOTHESIS_LABEL, HYPOTHESIS_TONE } from '@/components/pipeline/tones'
@@ -20,6 +21,12 @@ onMounted(async () => {
 })
 onUnmounted(stopPoll)
 
+// 刷新(判死/落卡等操作后重拉;失败保旧值,不裸抛)
+async function load() {
+  all.value = await getHypotheses().catch(() => all.value)
+  deadFactors.value = await getGraveyardFactors().catch(() => deadFactors.value)
+}
+
 const pool = computed(() => all.value.filter((h) => h.state !== 'graveyard'))
 const graveyard = computed(() => all.value.filter((h) => h.state === 'graveyard'))
 const shown = computed(() => (tab.value === 'pool' ? pool.value : graveyard.value))
@@ -57,6 +64,31 @@ const canDecompose = (h: Hypothesis): boolean => DECOMPOSABLE.includes(h.state)
 // 决议O:部分死=卡留活跃池+角标☠n/N(n=死因子数,0 不显示)
 const deadFactorCount = (h: Hypothesis): number =>
   (h.factors || []).filter((f) => f.status === 'graveyard').length
+// 决议O②:判死卡片(危险区)——强断言想法死,活因子陪葬(终态不可逆)
+const kill = ref<{ card: Hypothesis; reason: string; loading: boolean } | null>(null)
+const killBuriable = computed(() =>
+  (kill.value?.card.factors || []).filter((f) => f.status !== 'graveyard'))
+const openKill = (h: Hypothesis) => {
+  kill.value = { card: h, reason: '', loading: false }
+}
+async function confirmKill() {
+  if (!kill.value) return
+  const reason = kill.value.reason.trim()
+  if (!reason) { ElMessage.warning('死因必填(可检索防重复造轮)'); return }
+  kill.value.loading = true
+  try {
+    const r = await postHypothesisVerdict(kill.value.card.id, reason)
+    ElMessage.success(
+      r.buried.length ? `卡片已判死,陪葬 ${r.buried.length} 条因子` : '卡片已判死(纯想法,无陪葬)')
+    kill.value = null
+    await load()
+  } catch (e: unknown) {
+    ElMessage.error(e instanceof Error ? e.message : '判死失败')
+    if (kill.value) kill.value.loading = false
+  }
+}
+const killable = (h: Hypothesis): boolean =>
+  h.state !== 'graveyard' && h.state !== 'promoted'
 // 在飞态=服务端真相(卡片 decomposeJob),前端只轮询不登记(10-09 job 化)
 const isDecomposing = (h: Hypothesis): boolean => h.decomposeJob?.status === 'running'
 
@@ -322,11 +354,14 @@ function progText(h: Hypothesis): string {
             </div>
           </div>
           <div v-if="h.deathReason" class="hcard-death">☠ {{ h.deathReason }}</div>
-          <div v-if="canDecompose(h) || isDecomposing(h)" class="hcard-ops">
-            <button class="wiz-btn" :disabled="isDecomposing(h)"
+          <div v-if="canDecompose(h) || isDecomposing(h) || killable(h)" class="hcard-ops">
+            <button v-if="canDecompose(h) || isDecomposing(h)" class="wiz-btn"
+                    :disabled="isDecomposing(h)"
                     @click="runDecompose(h)">
               {{ isDecomposing(h) ? '分解中（后台执行，可离开本页）…' : '⚡ AI 分解' }}
             </button>
+            <button v-if="killable(h)" class="wiz-btn danger"
+                    @click="openKill(h)">☠ 判死卡片</button>
           </div>
           <div class="hcard-foot">{{ h.updatedAt }}</div>
         </div>
@@ -344,6 +379,30 @@ function progText(h: Hypothesis): string {
           <span class="gfac-cause">{{ f.cause }}</span>
         </div>
       </div>
+      <!-- 决议O②:判死卡片确认弹窗(危险区,强断言想法死) -->
+      <el-dialog :model-value="kill !== null" title="☠ 判死卡片（危险区）"
+                 width="480px" @update:model-value="kill = null">
+        <template v-if="kill">
+          <div class="kill-warn">
+            强断言「想法死了」——卡下活因子将全部陪葬入墓园（终态不可逆,重推想法=开新卡）。
+          </div>
+          <div v-if="killBuriable.length" class="kill-list">
+            <div class="kill-list-h">陪葬清单（{{ killBuriable.length }} 条）：</div>
+            <div v-for="f in killBuriable" :key="f.name" class="kill-item">
+              <span class="mono">{{ f.name }}</span>
+              <span class="dim">{{ f.status }}</span>
+            </div>
+          </div>
+          <div v-else class="kill-list dim">本卡无因子——纯想法毙掉,无陪葬。</div>
+          <el-input v-model="kill.reason" type="textarea" :rows="2"
+                    placeholder="死因（必填,可检索防重复造轮）" style="margin-top: 10px" />
+        </template>
+        <template #footer>
+          <el-button @click="kill = null">取消</el-button>
+          <el-button type="danger" :loading="kill?.loading"
+                     @click="confirmKill">确认判死</el-button>
+        </template>
+      </el-dialog>
     </PanelCard>
   </div>
 </template>
@@ -376,6 +435,15 @@ function progText(h: Hypothesis): string {
 .wiz-btn { background: var(--cyan-soft); border: 1px solid rgba(0, 229, 255, 0.5); border-radius: var(--r-sm); color: var(--brand); font-size: 12px; padding: 6px 14px; cursor: pointer; }
 .wiz-btn:disabled { opacity: 0.5; cursor: not-allowed; }
 .wiz-btn.primary { background: rgba(0, 229, 255, 0.18); }
+.wiz-btn.danger { color: #ff5f6d; border-color: rgba(255, 95, 109, 0.5); }
+.wiz-btn.danger:hover { background: rgba(255, 95, 109, 0.12); }
+.kill-warn { font-size: 12px; color: #ffb84d; padding: 8px 10px;
+  border: 1px solid rgba(255, 184, 77, 0.4); border-radius: var(--r-sm); }
+.kill-list { margin-top: 10px; font-size: 12px; }
+.kill-list-h { color: var(--text-2); margin-bottom: 4px; }
+.kill-item { display: flex; justify-content: space-between;
+  padding: 3px 8px; border-bottom: 1px dashed var(--border); }
+.kill-item .dim { color: var(--text-3); font-size: 11px; }
 .wiz-error { font-size: 11px; color: #ff5f6d; }
 .wiz-form { display: flex; flex-direction: column; gap: 6px; }
 .wiz-form label { display: flex; align-items: center; gap: 8px; font-size: 11.5px; color: var(--text-3); flex-shrink: 0; }