diff --git a/frontend/src/pages/relay/TaskDetailPage.vue b/frontend/src/pages/relay/TaskDetailPage.vue
index 9287f21..1a00db6 100644
--- a/frontend/src/pages/relay/TaskDetailPage.vue
+++ b/frontend/src/pages/relay/TaskDetailPage.vue
@@ -334,25 +334,37 @@ function checkpointState(cp: TaskCheckpointView): CheckpointState {
   return 'future'
 }
 
-// --- 보고서 작성 폼(인라인, 점검일 당일·담당자만) ---
+// --- 보고서 작성(모달, 점검일 당일·담당자만) — 카테고리 탭 방식 ---
 const reportingCpId = ref<string | null>(null)
-const reportItems = ref<{ id: string; text: string; workStatus: ChecklistWorkStatus }[]>([])
+const reportItems = ref<
+  { id: string; text: string; category: ChecklistCategory; workStatus: ChecklistWorkStatus }[]
+>([])
 const reportNote = ref('')
 const reportSubmitting = ref(false)
+const writeTab = ref<ChecklistCategory>('필수')
 
 function openReportForm(cp: TaskCheckpointView) {
   if (!task.value) return
   reportingCpId.value = cp.id
+  writeTab.value = '필수'
   // 현재(마지막 보고) 상태로 프리필
   reportItems.value = task.value.checklist
     .filter((c) => c.id)
     .map((c) => ({
       id: c.id as string,
       text: c.text,
+      category: c.category,
       workStatus: c.workStatus ?? 'todo',
     }))
   reportNote.value = ''
 }
+// 작성 모달 탭별 항목 / 개수
+function writeItemsByCat(cat: ChecklistCategory) {
+  return reportItems.value.filter((it) => it.category === cat)
+}
+function writeCatCount(cat: ChecklistCategory): number {
+  return writeItemsByCat(cat).length
+}
 function cancelReportForm() {
   reportingCpId.value = null
   reportItems.value = []
@@ -1271,14 +1283,14 @@ function badgeFor(name: string | undefined): { label: string; cls: string } {
                   class="cp-d-item"
                 >
                   <span class="cp-d-date">{{ cp.dateLabel }}</span>
-                  <!-- 당일 + 담당자만 보고서 작성 -->
+                  <!-- 당일 + 담당자만 보고서 작성(모달) -->
                   <button
                     v-if="checkpointState(cp) === 'today' && isAssignee"
                     class="cp-report-btn"
                     type="button"
-                    @click="reportingCpId === cp.id ? cancelReportForm() : openReportForm(cp)"
+                    @click="openReportForm(cp)"
                   >
-                    {{ reportingCpId === cp.id ? '취소' : '보고서 작성' }}
+                    보고서 작성
                   </button>
                   <button
                     v-else-if="checkpointState(cp) === 'reported' && canViewReports"
@@ -1296,60 +1308,6 @@ function badgeFor(name: string | undefined): { label: string; cls: string } {
                   >{{ CP_STATE_LABEL[checkpointState(cp)] }}</span>
                 </li>
               </ul>
-
-              <!-- 보고서 작성 폼(인라인) — 항목별 상태 선택 + 메모 -->
-              <div
-                v-if="reportingCpId"
-                class="cp-form"
-              >
-                <div class="cp-form-title">
-                  진행 상태 보고서
-                </div>
-                <div
-                  v-if="reportItems.length"
-                  class="cp-form-items"
-                >
-                  <div
-                    v-for="it in reportItems"
-                    :key="it.id"
-                    class="cp-form-item"
-                  >
-                    <span class="cp-fi-text">{{ it.text }}</span>
-                    <span class="ws-seg">
-                      <button
-                        v-for="s in WORK_STATUS_OPTIONS"
-                        :key="s"
-                        type="button"
-                        class="ws-btn"
-                        :class="[s, { active: it.workStatus === s }]"
-                        @click="it.workStatus = s"
-                      >{{ WORK_STATUS_LABEL[s] }}</button>
-                    </span>
-                  </div>
-                </div>
-                <p
-                  v-else
-                  class="cp-form-empty"
-                >
-                  등록된 할 일이 없어 메모만 보고됩니다.
-                </p>
-                <textarea
-                  v-model="reportNote"
-                  class="cp-note-input"
-                  rows="2"
-                  placeholder="보고 메모(선택)"
-                />
-                <div class="cp-form-actions">
-                  <button
-                    class="cp-send-btn"
-                    type="button"
-                    :disabled="reportSubmitting"
-                    @click="submitReport"
-                  >
-                    {{ reportSubmitting ? '보내는 중…' : '지시자에게 보내기' }}
-                  </button>
-                </div>
-              </div>
             </div>
           </div>
 
@@ -1709,6 +1667,121 @@ function badgeFor(name: string | undefined): { label: string; cls: string } {
         </div>
       </div>
     </Teleport>
+
+    <!-- 중간 점검 보고서 작성 모달 -->
+    <Teleport to="body">
+      <div
+        class="modal-backdrop"
+        :class="{ open: !!reportingCpId }"
+        @click.self="cancelReportForm"
+      >
+        <div
+          v-if="reportingCpId"
+          class="cp-modal"
+          role="dialog"
+          aria-modal="true"
+          aria-label="진행 상태 보고서"
+        >
+          <div class="cp-modal-head">
+            <div>
+              <div class="cp-modal-title">
+                진행 상태 보고서
+              </div>
+              <div class="cp-modal-sub">
+                각 할 일의 현재 상태를 선택해 지시자에게 보고합니다.
+              </div>
+            </div>
+            <button
+              class="rv-x"
+              type="button"
+              aria-label="닫기"
+              @click="cancelReportForm"
+            >
+              <svg
+                viewBox="0 0 24 24"
+                fill="none"
+                stroke="currentColor"
+                stroke-width="2"
+                stroke-linecap="round"
+                stroke-linejoin="round"
+              ><path d="M18 6 6 18M6 6l12 12" /></svg>
+            </button>
+          </div>
+          <!-- 카테고리 탭 -->
+          <div
+            class="cat-tabs"
+            role="tablist"
+          >
+            <button
+              v-for="tab in CHECKLIST_CATEGORIES"
+              :key="tab"
+              type="button"
+              class="cat-tab"
+              :class="[categoryClass(tab), { active: writeTab === tab }]"
+              role="tab"
+              :aria-selected="writeTab === tab"
+              @click="writeTab = tab"
+            >
+              <span class="cat-dot" />
+              {{ tab }}
+              <span class="cat-count">{{ writeCatCount(tab) }}</span>
+            </button>
+          </div>
+          <!-- 활성 탭 항목 + 상태 선택 -->
+          <div class="cp-modal-items">
+            <div
+              v-for="it in writeItemsByCat(writeTab)"
+              :key="it.id"
+              class="cp-write-item"
+            >
+              <span class="cp-write-text">{{ it.text }}</span>
+              <span class="ws-seg">
+                <button
+                  v-for="s in WORK_STATUS_OPTIONS"
+                  :key="s"
+                  type="button"
+                  class="ws-btn"
+                  :class="[s, { active: it.workStatus === s }]"
+                  @click="it.workStatus = s"
+                >{{ WORK_STATUS_LABEL[s] }}</button>
+              </span>
+            </div>
+            <div
+              v-if="writeItemsByCat(writeTab).length === 0"
+              class="cp-modal-empty"
+            >
+              '{{ writeTab }}' 항목이 없습니다.
+            </div>
+          </div>
+          <!-- 메모 + 전송 -->
+          <div class="cp-write-foot">
+            <textarea
+              v-model="reportNote"
+              class="cp-note-input"
+              rows="2"
+              placeholder="보고 메모(선택)"
+            />
+            <div class="cp-write-actions">
+              <button
+                class="cp-cancel-btn"
+                type="button"
+                @click="cancelReportForm"
+              >
+                취소
+              </button>
+              <button
+                class="cp-send-btn"
+                type="button"
+                :disabled="reportSubmitting"
+                @click="submitReport"
+              >
+                {{ reportSubmitting ? '보내는 중…' : '지시자에게 보내기' }}
+              </button>
+            </div>
+          </div>
+        </div>
+      </div>
+    </Teleport>
   </AppShell>
 </template>
 
@@ -3411,46 +3484,48 @@ a.file-info {
   background: var(--accent-hover);
 }
 /* 보고서 작성 폼 */
-.cp-form {
-  border: 1px solid var(--border);
-  border-radius: var(--radius);
-  padding: 0.625rem;
-  margin-bottom: 0.75rem;
-  background: #fafbfc;
-}
-.cp-form-title {
-  font-size: 0.781rem;
-  font-weight: 700;
-  color: var(--text);
-  margin-bottom: 0.5rem;
-}
-.cp-form-items {
+/* 보고서 작성 모달 — 항목 + 상태 선택 */
+.cp-write-item {
   display: flex;
   flex-direction: column;
-  gap: 0.4375rem;
-  margin-bottom: 0.5rem;
+  gap: 0.375rem;
+  padding-bottom: 0.625rem;
+  border-bottom: 1px solid var(--border);
 }
-.cp-form-item {
-  display: flex;
-  flex-direction: column;
-  gap: 0.25rem;
+.cp-write-item:last-child {
+  border-bottom: none;
+  padding-bottom: 0;
 }
-.cp-fi-text {
-  font-size: 0.75rem;
+.cp-write-text {
+  font-size: 0.8125rem;
   color: var(--text);
 }
-.cp-form-item .ws-seg {
+.cp-write-item .ws-seg {
   margin-left: 0;
   align-self: flex-start;
 }
-.cp-form-empty {
-  font-size: 0.75rem;
-  color: var(--text-3);
-  margin: 0 0 0.5rem;
+.cp-write-foot {
+  border-top: 1px solid var(--border);
+  padding: 0.875rem 1.25rem 1rem;
 }
-.cp-form-actions {
+.cp-write-actions {
   display: flex;
   justify-content: flex-end;
+  gap: 0.5rem;
+}
+.cp-cancel-btn {
+  border: 1px solid var(--border-strong);
+  background: #fff;
+  color: var(--text-2);
+  font-family: inherit;
+  font-size: 0.781rem;
+  font-weight: 600;
+  padding: 0.375rem 0.75rem;
+  border-radius: var(--radius-sm);
+  cursor: pointer;
+}
+.cp-cancel-btn:hover {
+  background: #f5f6f8;
 }
 .cp-send-btn {
   border: none;
@@ -3459,7 +3534,7 @@ a.file-info {
   font-family: inherit;
   font-size: 0.781rem;
   font-weight: 700;
-  padding: 0.375rem 0.75rem;
+  padding: 0.375rem 0.875rem;
   border-radius: var(--radius-sm);
   cursor: pointer;
 }
@@ -3479,7 +3554,7 @@ a.file-info {
   font-size: 0.781rem;
   color: var(--text);
   resize: vertical;
-  margin-bottom: 0.5rem;
+  margin-bottom: 0.625rem;
 }
 .cp-note-input:focus {
   outline: none;
@@ -3587,6 +3662,8 @@ a.file-info {
 }
 /* 모달 항목 목록 */
 .cp-modal-items {
+  flex: 1;
+  min-height: 0;
   padding: 0.75rem 1.25rem 1.25rem;
   overflow-y: auto;
   display: flex;