diff --git a/backend/calculations.py b/backend/calculations.py
index d7c4dda..0ed9f35 100644
--- a/backend/calculations.py
+++ b/backend/calculations.py
@@ -346,20 +346,17 @@ def calc_waste_for_project(project_id: int, db: Session) -> dict:
 
 def calc_team_efficiency(project_id: int, db: Session) -> list:
     """
-    人均基准对比法：
-    - 人均基准 = 目标秒数 ÷ 参与制作人数
-    - 每人超出比例 = (个人提交 - 人均基准) / 人均基准
+    时均产出效率法（展示日均）：
+    - 效率对比用时均产出 = 累计秒数 ÷ 累计工时（跨项目公平）
+    - 前端展示日均产出 = 累计秒数 ÷ 提交天数（直观）
     """
-    project = db.query(Project).filter(Project.id == project_id).first()
-    if not project:
-        return []
+    from sqlalchemy import distinct
 
-    target = project.target_total_seconds
-
-    # 获取每个人的提交总秒数（仅有秒数的提交）
     per_user = db.query(
         Submission.user_id,
         sa_func.sum(Submission.total_seconds).label("total_secs"),
+        sa_func.sum(Submission.hours_spent).label("total_hours"),
+        sa_func.count(distinct(Submission.submit_date)).label("days"),
         sa_func.count(Submission.id).label("count"),
     ).filter(
         Submission.project_id == project_id,
@@ -369,26 +366,32 @@ def calc_team_efficiency(project_id: int, db: Session) -> list:
     if not per_user:
         return []
 
-    num_people = len(per_user)
-    baseline = target / num_people if num_people > 0 else 0
-
-    result = []
-    for user_id, total_secs, count in per_user:
+    user_data = []
+    for user_id, total_secs, total_hours, days, count in per_user:
         user = db.query(User).filter(User.id == user_id).first()
-        excess = total_secs - baseline
-        excess_rate = round(excess / baseline * 100, 1) if baseline > 0 else 0
-        result.append({
+        daily_avg = total_secs / days if days > 0 else 0
+        hourly_output = total_secs / total_hours if total_hours and total_hours > 0 else 0
+        user_data.append({
             "user_id": user_id,
             "user_name": user.name if user else "未知",
             "total_seconds": round(total_secs, 1),
             "submission_count": count,
-            "baseline": round(baseline, 1),
-            "excess_seconds": round(excess, 1),
-            "excess_rate": excess_rate,
+            "total_hours": round(total_hours or 0, 1),
+            "active_days": days,
+            "daily_avg": round(daily_avg, 1),
+            "hourly_output": round(hourly_output, 1),
         })
 
-    result.sort(key=lambda x: x["total_seconds"], reverse=True)
-    return result
+    # 效率对比用时均产出（公平）
+    team_hourly_avg = sum(d["hourly_output"] for d in user_data) / len(user_data)
+
+    for d in user_data:
+        diff = d["hourly_output"] - team_hourly_avg
+        d["team_hourly_avg"] = round(team_hourly_avg, 1)
+        d["efficiency_rate"] = round(diff / team_hourly_avg * 100, 1) if team_hourly_avg > 0 else 0
+
+    user_data.sort(key=lambda x: x["hourly_output"], reverse=True)
+    return user_data
 
 
 # ──────────────────────────── 项目完整结算 ────────────────────────────
diff --git a/backend/main.py b/backend/main.py
index bfde9e7..18815ad 100644
--- a/backend/main.py
+++ b/backend/main.py
@@ -9,7 +9,7 @@ from fastapi.responses import FileResponse
 from database import engine, Base
 from models import (
     User, Role, PhaseGroup, BUILTIN_ROLES, COST_PERM_MIGRATION,
-    Project, ProjectMilestone, DEFAULT_MILESTONES
+    Project, ProjectMilestone, DEFAULT_MILESTONES, Submission
 )
 from auth import hash_password
 from sqlalchemy.orm.attributes import flag_modified
@@ -134,6 +134,11 @@ def init_roles_and_admin():
                     conn.commit()
                     print("[MIGRATE] added milestone_id, delay_reason to submissions")
 
+                if 'episode_number' not in sub_cols:
+                    conn.execute(text("ALTER TABLE submissions ADD COLUMN episode_number INT NULL"))
+                    conn.commit()
+                    print("[MIGRATE] added episode_number to submissions")
+
                 # MySQL: 扩展 content_type 枚举（使用 Python enum 名称）+ 旧值迁移
                 from config import DATABASE_URL
                 if not DATABASE_URL.startswith("sqlite"):
@@ -149,6 +154,17 @@ def init_roles_and_admin():
                     except Exception:
                         pass  # 已经扩展过
 
+                    # MySQL: 扩展 work_type 枚举（加入 REVISION/修改）
+                    try:
+                        conn.execute(text("""
+                            ALTER TABLE submissions MODIFY COLUMN work_type
+                            ENUM('PRODUCTION','TEST','PLAN','REVISION','QC') NOT NULL
+                        """))
+                        conn.commit()
+                        print("[MIGRATE] expanded work_type enum")
+                    except Exception:
+                        pass  # 已经扩展过
+
                     # 旧值迁移：DESIGN → PLANNING
                     r1 = conn.execute(text("UPDATE submissions SET content_type='ANIMATION' WHERE content_type='DESIGN'"))
                     conn.commit()
@@ -236,6 +252,25 @@ def init_roles_and_admin():
             if orphans:
                 db.commit()
 
+        # 迁移：从 description 提取 EP 号填充 episode_number
+        try:
+            import re as _re
+            orphan_subs = db.query(Submission).filter(
+                Submission.episode_number.is_(None),
+                Submission.description.isnot(None),
+            ).all()
+            migrated_ep = 0
+            for s in orphan_subs:
+                m = _re.match(r'EP(\d+)', s.description or '', _re.IGNORECASE)
+                if m:
+                    s.episode_number = int(m.group(1))
+                    migrated_ep += 1
+            if migrated_ep:
+                db.commit()
+                print(f"[MIGRATE] extracted episode_number for {migrated_ep} submissions")
+        except Exception as e:
+            print(f"[MIGRATE] episode extraction error (non-fatal): {e}")
+
         # 创建默认管理员（关联超级管理员角色）
         admin_role = db.query(Role).filter(Role.name == "超级管理员").first()
         if admin_role and not db.query(User).filter(User.username == "admin").first():
diff --git a/backend/models.py b/backend/models.py
index f0a8ee9..b2a8801 100644
--- a/backend/models.py
+++ b/backend/models.py
@@ -126,6 +126,8 @@ class WorkType(str, enum.Enum):
     PRODUCTION = "制作"
     TEST = "测试"
     PLAN = "方案"
+    REVISION = "修改"
+    QC = "QC"
 
 
 class ContentType(str, enum.Enum):
@@ -285,6 +287,7 @@ class Submission(Base):
     submit_date = Column(Date, nullable=False)
     milestone_id = Column(Integer, ForeignKey("project_milestones.id"), nullable=True)
     delay_reason = Column(Text, nullable=True)
+    episode_number = Column(Integer, nullable=True)  # EP集数: 1=EP01, 2=EP02...
     created_at = Column(DateTime, server_default=func.now())
 
     user = relationship("User", back_populates="submissions")
diff --git a/backend/routers/projects.py b/backend/routers/projects.py
index c2553b5..a29896d 100644
--- a/backend/routers/projects.py
+++ b/backend/routers/projects.py
@@ -103,6 +103,32 @@ def enrich_project(p: Project, db: Session) -> ProjectOut:
     else:
         current_stage = "已完成"
 
+    # EP 集数进度
+    episode_progress = []
+    ep_target = p.episode_duration_minutes * 60  # 每集目标秒数
+    for ep in range(1, p.episode_count + 1):
+        ep_subs = db.query(Submission).filter(
+            Submission.project_id == p.id,
+            Submission.episode_number == ep,
+            Submission.total_seconds > 0,
+        ).all()
+        ep_total = sum(s.total_seconds for s in ep_subs)
+        # 每集贡献者
+        contributors = {}
+        for s in ep_subs:
+            name = s.user.name if s.user else "未知"
+            contributors[name] = contributors.get(name, 0) + s.total_seconds
+        episode_progress.append({
+            "episode": ep,
+            "total_seconds": round(ep_total, 1),
+            "target_seconds": ep_target,
+            "progress_percent": round(ep_total / ep_target * 100, 1) if ep_target > 0 else 0,
+            "contributors": [
+                {"name": k, "seconds": round(v, 1)}
+                for k, v in sorted(contributors.items(), key=lambda x: -x[1])
+            ],
+        })
+
     return ProjectOut(
         id=p.id, name=p.name,
         project_type=p.project_type.value if hasattr(p.project_type, 'value') else p.project_type,
@@ -124,6 +150,7 @@ def enrich_project(p: Project, db: Session) -> ProjectOut:
         milestones=milestones_out,
         phase_summary=phase_summary,
         current_stage=current_stage,
+        episode_progress=episode_progress,
     )
 
 
diff --git a/backend/routers/submissions.py b/backend/routers/submissions.py
index 5897cb6..5a24387 100644
--- a/backend/routers/submissions.py
+++ b/backend/routers/submissions.py
@@ -33,6 +33,7 @@ def submission_to_out(s: Submission) -> SubmissionOut:
         submit_date=s.submit_date,
         milestone_name=s.milestone.name if s.milestone else None,
         delay_reason=s.delay_reason,
+        episode_number=s.episode_number,
         created_at=s.created_at,
     )
 
@@ -113,6 +114,7 @@ def create_submission(
         submit_date=req.submit_date,
         milestone_id=milestone_id,
         delay_reason=req.delay_reason,
+        episode_number=req.episode_number,
     )
     db.add(sub)
     db.commit()
@@ -165,6 +167,8 @@ def update_submission(
         sub.description = req.description
     if req.submit_date is not None:
         sub.submit_date = req.submit_date
+    if req.episode_number is not None:
+        sub.episode_number = req.episode_number
 
     # 重算总秒数
     sub.total_seconds = (sub.duration_minutes or 0) * 60 + (sub.duration_seconds or 0)
diff --git a/backend/schemas.py b/backend/schemas.py
index ea87f61..67105f4 100644
--- a/backend/schemas.py
+++ b/backend/schemas.py
@@ -144,6 +144,8 @@ class ProjectOut(BaseModel):
     milestones: Optional[List[MilestoneOut]] = []
     phase_summary: Optional[dict] = None
     current_stage: Optional[str] = None
+    # EP 集数进度
+    episode_progress: Optional[List[dict]] = []
 
     class Config:
         from_attributes = True
@@ -163,6 +165,7 @@ class SubmissionCreate(BaseModel):
     description: Optional[str] = None
     submit_date: date
     delay_reason: Optional[str] = None
+    episode_number: Optional[int] = None
 
 
 class SubmissionUpdate(BaseModel):
@@ -175,6 +178,7 @@ class SubmissionUpdate(BaseModel):
     submit_to: Optional[str] = None
     description: Optional[str] = None
     submit_date: Optional[date] = None
+    episode_number: Optional[int] = None
     change_reason: str  # 修改必须填原因
 
 
@@ -196,6 +200,7 @@ class SubmissionOut(BaseModel):
     submit_date: date
     milestone_name: Optional[str] = None
     delay_reason: Optional[str] = None
+    episode_number: Optional[int] = None
     created_at: Optional[datetime] = None
 
     class Config:
diff --git a/frontend/src/views/MemberDetail.vue b/frontend/src/views/MemberDetail.vue
index fc75a49..3989153 100644
--- a/frontend/src/views/MemberDetail.vue
+++ b/frontend/src/views/MemberDetail.vue
@@ -93,7 +93,7 @@
                 <el-table-column prop="submit_date" label="日期" width="110" />
                 <el-table-column label="工作类型" width="80">
                   <template #default="{row}">
-                    <el-tag :type="row.work_type === '测试' ? 'warning' : row.work_type === '方案' ? 'info' : ''" size="small">{{ row.work_type }}</el-tag>
+                    <el-tag :type="row.work_type === '测试' ? 'warning' : row.work_type === '方案' ? 'info' : row.work_type === '修改' ? 'danger' : row.work_type === 'QC' ? 'success' : ''" size="small">{{ row.work_type }}</el-tag>
                   </template>
                 </el-table-column>
                 <el-table-column prop="content_type" label="内容类型" width="100" />
diff --git a/frontend/src/views/ProjectDetail.vue b/frontend/src/views/ProjectDetail.vue
index 3a350ad..2582a29 100644
--- a/frontend/src/views/ProjectDetail.vue
+++ b/frontend/src/views/ProjectDetail.vue
@@ -224,26 +224,54 @@
       </div>
     </div>
 
+    <!-- 集数进度 -->
+    <div v-if="epProgress.length && epProgress.some(e => e.total_seconds > 0)" class="card">
+      <div class="card-header">
+        <span class="card-title">集数进度</span>
+        <span class="card-count">{{ epProgress.filter(e => e.progress_percent >= 100).length }}/{{ epProgress.length }} 集完成</span>
+      </div>
+      <div class="card-body ep-progress-body">
+        <div v-for="ep in epProgress" :key="ep.episode" class="ep-row">
+          <div class="ep-label">EP{{ String(ep.episode).padStart(2, '0') }}</div>
+          <div class="ep-bar-wrapper">
+            <div class="ep-bar-track">
+              <div v-for="(c, ci) in ep.contributors" :key="ci"
+                class="ep-bar-segment"
+                :style="{width: (c.seconds / ep.target_seconds * 100) + '%', background: memberColor(c.name)}"
+                :title="c.name + ' ' + formatSecs(c.seconds)">
+              </div>
+            </div>
+            <div class="ep-bar-info">
+              <span class="ep-percent" :class="{done: ep.progress_percent >= 100}">{{ ep.progress_percent }}%</span>
+              <span class="ep-total">{{ formatSecs(ep.total_seconds) }}</span>
+            </div>
+          </div>
+          <div class="ep-contributors" v-if="ep.contributors.length">
+            <span v-for="(c, ci) in ep.contributors" :key="ci" class="ep-contributor">
+              <span class="ep-contributor-dot" :style="{background: memberColor(c.name)}"></span>
+              {{ c.name }} {{ formatSecs(c.seconds) }}
+            </span>
+          </div>
+        </div>
+      </div>
+    </div>
+
     <!-- 团队效率 -->
     <div v-if="authStore.hasPermission('efficiency:view') && efficiency.length" class="card">
       <div class="card-header"><span class="card-title">团队效率</span></div>
       <div class="card-body">
         <el-table :data="efficiency" size="small">
           <el-table-column prop="user_name" label="成员" width="100" />
-          <el-table-column label="提交总量" align="right"><template #default="{row}">{{ formatSecs(row.total_seconds) }}</template></el-table-column>
-          <el-table-column label="人均基准" align="right"><template #default="{row}">{{ formatSecs(row.baseline) }}</template></el-table-column>
-          <el-table-column label="超出基准" align="right">
+          <el-table-column label="累计产出" align="right"><template #default="{row}">{{ formatSecs(row.total_seconds) }}</template></el-table-column>
+          <el-table-column label="工时" align="right" width="70"><template #default="{row}">{{ row.total_hours }}h</template></el-table-column>
+          <el-table-column label="日均产出" align="right"><template #default="{row}"><strong>{{ formatSecs(row.daily_avg) }}</strong></template></el-table-column>
+          <el-table-column label="效率" align="right" width="100">
             <template #default="{row}">
-              <span :style="{color: row.excess_seconds > 0 ? '#FF3B30' : '#34C759', fontWeight: 600}">
-                {{ row.excess_seconds > 0 ? '+' : '' }}{{ formatSecs(row.excess_seconds) }}
+              <span class="rate-badge" :class="{success: row.efficiency_rate >= 0, danger: row.efficiency_rate < 0}">
+                {{ row.efficiency_rate > 0 ? '+' : '' }}{{ row.efficiency_rate }}%
               </span>
             </template>
           </el-table-column>
-          <el-table-column label="超出比例" align="right" width="100">
-            <template #default="{row}">
-              <span class="rate-badge" :class="{danger: row.excess_rate > 20}">{{ row.excess_rate > 0 ? '+' : '' }}{{ row.excess_rate }}%</span>
-            </template>
-          </el-table-column>
         </el-table>
       </div>
     </div>
@@ -288,8 +316,10 @@
         <!-- 图例 -->
         <div class="heatmap-legend">
           <span class="legend-item"><span class="legend-dot type-制作"></span>制作</span>
+          <span class="legend-item"><span class="legend-dot type-修改"></span>修改</span>
           <span class="legend-item"><span class="legend-dot type-测试"></span>测试</span>
           <span class="legend-item"><span class="legend-dot type-方案"></span>方案</span>
+          <span class="legend-item"><span class="legend-dot type-QC"></span>QC</span>
         </div>
       </div>
       <div class="card-body" v-else>
@@ -300,7 +330,7 @@
     <!-- 悬浮提示 -->
     <div class="cell-tooltip" v-if="tooltip.visible" :style="{ top: tooltip.y + 'px', left: tooltip.x + 'px' }">
       <div v-for="(s, i) in tooltip.items" :key="i" class="tooltip-row">
-        <el-tag :type="s.work_type === '测试' ? 'warning' : s.work_type === '方案' ? 'info' : ''" size="small">{{ s.work_type }}</el-tag>
+        <el-tag :type="s.work_type === '测试' ? 'warning' : s.work_type === '方案' ? 'info' : s.work_type === '修改' ? 'danger' : s.work_type === 'QC' ? 'success' : ''" size="small">{{ s.work_type }}</el-tag>
         <span class="tooltip-type">{{ s.content_type }}</span>
         <span class="tooltip-secs" v-if="s.total_seconds > 0">{{ formatSecs(s.total_seconds) }}</span>
         <span class="tooltip-desc" v-if="s.description">{{ s.description }}</span>
@@ -319,7 +349,7 @@
           <div class="drawer-date-header">{{ date }}</div>
           <div v-for="s in group" :key="s.id" class="drawer-sub-item">
             <div class="drawer-sub-top">
-              <el-tag :type="s.work_type === '测试' ? 'warning' : s.work_type === '方案' ? 'info' : ''" size="small">{{ s.work_type }}</el-tag>
+              <el-tag :type="s.work_type === '测试' ? 'warning' : s.work_type === '方案' ? 'info' : s.work_type === '修改' ? 'danger' : s.work_type === 'QC' ? 'success' : ''" size="small">{{ s.work_type }}</el-tag>
               <span>{{ s.content_type }}</span>
               <span v-if="s.total_seconds > 0" class="drawer-sub-secs">{{ formatSecs(s.total_seconds) }}</span>
             </div>
@@ -421,7 +451,7 @@
           <el-table-column prop="project_phase" label="阶段" width="70" />
           <el-table-column label="工作类型" width="80">
             <template #default="{row}">
-              <el-tag :type="row.work_type === '测试' ? 'warning' : row.work_type === '方案' ? 'info' : ''" size="small">{{ row.work_type }}</el-tag>
+              <el-tag :type="row.work_type === '测试' ? 'warning' : row.work_type === '方案' ? 'info' : row.work_type === '修改' ? 'danger' : row.work_type === 'QC' ? 'success' : ''" size="small">{{ row.work_type }}</el-tag>
             </template>
           </el-table-column>
           <el-table-column prop="content_type" label="内容类型" width="90" />
@@ -714,6 +744,20 @@ function openMemberDrawer(user) {
   drawerVisible.value = true
 }
 
+// ── EP 集数进度 ──
+const epProgress = computed(() => project.value.episode_progress || [])
+
+const EP_COLORS = ['#3370FF', '#34C759', '#FF9500', '#FF3B30', '#AF52DE', '#5AC8FA', '#FF2D55', '#FFCC00', '#8F959E', '#007AFF', '#30D158', '#FF6482', '#BF5AF2', '#64D2FF']
+const memberColorMap = {}
+let colorIdx = 0
+function memberColor(name) {
+  if (!memberColorMap[name]) {
+    memberColorMap[name] = EP_COLORS[colorIdx % EP_COLORS.length]
+    colorIdx++
+  }
+  return memberColorMap[name]
+}
+
 // ── 工具函数 ──
 function formatSecs(s) {
   if (!s) return '0秒'
@@ -860,6 +904,7 @@ onUnmounted(() => {
   background: var(--bg-hover); padding: 2px 8px; border-radius: 4px; display: inline-block;
 }
 .rate-badge.danger { background: #FFE8E7; color: #FF3B30; }
+.rate-badge.success { background: #E8F8EE; color: #34C759; }
 .inline-field { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
 .field-unit { font-size: 13px; color: var(--text-secondary); white-space: nowrap; }
 .field-hint { font-size: 12px; color: var(--text-placeholder, #C0C4CC); margin-left: 4px; }
@@ -986,8 +1031,10 @@ onUnmounted(() => {
 .heatmap-cell:hover { filter: brightness(0.92); }
 .heatmap-cell.has-data { font-weight: 600; color: #fff; }
 .heatmap-cell.type-制作 { background: #3370FF; }
+.heatmap-cell.type-修改 { background: #FF3B30; }
 .heatmap-cell.type-测试 { background: #FF9500; }
 .heatmap-cell.type-方案 { background: #8F959E; }
+.heatmap-cell.type-QC { background: #34C759; }
 .member-link {
   color: #3370FF; cursor: pointer; text-decoration: none;
 }
@@ -997,8 +1044,39 @@ onUnmounted(() => {
 .legend-item { display: flex; align-items: center; gap: 4px; }
 .legend-dot { width: 10px; height: 10px; border-radius: 2px; display: inline-block; }
 .legend-dot.type-制作 { background: #3370FF; }
+.legend-dot.type-修改 { background: #FF3B30; }
 .legend-dot.type-测试 { background: #FF9500; }
 .legend-dot.type-方案 { background: #8F959E; }
+.legend-dot.type-QC { background: #34C759; }
+
+/* EP 集数进度 */
+.ep-progress-body { padding: 16px 20px !important; }
+.ep-row { margin-bottom: 16px; }
+.ep-row:last-child { margin-bottom: 0; }
+.ep-label {
+  font-size: 13px; font-weight: 600; color: var(--text-primary);
+  margin-bottom: 6px;
+}
+.ep-bar-wrapper { display: flex; align-items: center; gap: 12px; }
+.ep-bar-track {
+  flex: 1; height: 16px; background: #E5E6EB; border-radius: 8px;
+  overflow: hidden; display: flex;
+}
+.ep-bar-segment {
+  height: 100%; min-width: 2px; transition: width 0.3s;
+}
+.ep-bar-segment:first-child { border-radius: 8px 0 0 8px; }
+.ep-bar-segment:last-child { border-radius: 0 8px 8px 0; }
+.ep-bar-segment:only-child { border-radius: 8px; }
+.ep-bar-info { display: flex; gap: 8px; align-items: baseline; min-width: 120px; }
+.ep-percent { font-size: 13px; font-weight: 600; color: var(--text-secondary); }
+.ep-percent.done { color: #34C759; }
+.ep-total { font-size: 12px; color: var(--text-placeholder, #C0C4CC); }
+.ep-contributors {
+  display: flex; flex-wrap: wrap; gap: 8px; margin-top: 4px; padding-left: 2px;
+}
+.ep-contributor { display: flex; align-items: center; gap: 4px; font-size: 12px; color: var(--text-secondary); }
+.ep-contributor-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
 
 /* 悬浮提示 */
 .cell-tooltip {
diff --git a/frontend/src/views/Settlement.vue b/frontend/src/views/Settlement.vue
index 8e5cc3f..a039d30 100644
--- a/frontend/src/views/Settlement.vue
+++ b/frontend/src/views/Settlement.vue
@@ -109,20 +109,16 @@
         <template #header><span class="section-title">团队效率排行</span></template>
         <el-table :data="data.team_efficiency" size="small" stripe>
           <el-table-column prop="user_name" label="成员" width="100" />
-          <el-table-column label="提交总量" align="right"><template #default="{row}">{{ formatSecs(row.total_seconds) }}</template></el-table-column>
-          <el-table-column label="人均基准" align="right"><template #default="{row}">{{ formatSecs(row.baseline) }}</template></el-table-column>
-          <el-table-column label="超出" align="right">
+          <el-table-column label="累计产出" align="right"><template #default="{row}">{{ formatSecs(row.total_seconds) }}</template></el-table-column>
+          <el-table-column label="工时" align="right" width="70"><template #default="{row}">{{ row.total_hours }}h</template></el-table-column>
+          <el-table-column label="日均产出" align="right"><template #default="{row}"><strong>{{ formatSecs(row.daily_avg) }}</strong></template></el-table-column>
+          <el-table-column label="效率" align="right" width="100">
             <template #default="{row}">
-              <span :style="{color: row.excess_seconds > 0 ? '#f56c6c' : '#67c23a'}">
-                {{ row.excess_seconds > 0 ? '+' : '' }}{{ formatSecs(row.excess_seconds) }}
+              <span :style="{color: row.efficiency_rate >= 0 ? '#34C759' : '#FF3B30', fontWeight: 600}">
+                {{ row.efficiency_rate > 0 ? '+' : '' }}{{ row.efficiency_rate }}%
               </span>
             </template>
           </el-table-column>
-          <el-table-column label="超出比例" align="right" width="100">
-            <template #default="{row}">
-              <span :style="{color: row.excess_rate > 20 ? '#f56c6c' : '#333'}">{{ row.excess_rate > 0 ? '+' : '' }}{{ row.excess_rate }}%</span>
-            </template>
-          </el-table-column>
           <el-table-column prop="submission_count" label="提交次数" width="90" align="right" />
         </el-table>
       </el-card>
diff --git a/frontend/src/views/Submissions.vue b/frontend/src/views/Submissions.vue
index 9249d96..f033ac4 100644
--- a/frontend/src/views/Submissions.vue
+++ b/frontend/src/views/Submissions.vue
@@ -24,7 +24,7 @@
       <el-table-column prop="project_phase" label="阶段" width="70" />
       <el-table-column label="工作类型" width="80">
         <template #default="{row}">
-          <el-tag :type="row.work_type === '测试' ? 'warning' : row.work_type === '方案' ? 'info' : ''" size="small">{{ row.work_type }}</el-tag>
+          <el-tag :type="row.work_type === '测试' ? 'warning' : row.work_type === '方案' ? 'info' : row.work_type === '修改' ? 'danger' : row.work_type === 'QC' ? 'success' : ''" size="small">{{ row.work_type }}</el-tag>
         </template>
       </el-table-column>
       <el-table-column prop="content_type" label="内容类型" width="90" />
@@ -64,12 +64,19 @@
             <el-form-item label="工作类型" required>
               <el-select v-model="form.work_type" style="width:100%">
                 <el-option label="制作" value="制作" />
+                <el-option label="修改" value="修改" />
                 <el-option label="测试" value="测试" />
                 <el-option label="方案" value="方案" />
+                <el-option label="QC" value="QC" />
               </el-select>
             </el-form-item>
           </el-col>
         </el-row>
+        <el-form-item label="集数" v-if="episodeOptions.length > 0">
+          <el-select v-model="form.episode_number" placeholder="选择集数（选填）" clearable style="width:100%">
+            <el-option v-for="ep in episodeOptions" :key="ep" :label="'EP' + String(ep).padStart(2,'0')" :value="ep" />
+          </el-select>
+        </el-form-item>
         <el-form-item label="内容类型" required>
           <el-select v-model="form.content_type" placeholder="本次提交的产出类型" style="width:100%">
             <el-option-group label="前期">
@@ -156,12 +163,19 @@
             <el-form-item label="工作类型" required>
               <el-select v-model="editForm.work_type" style="width:100%">
                 <el-option label="制作" value="制作" />
+                <el-option label="修改" value="修改" />
                 <el-option label="测试" value="测试" />
                 <el-option label="方案" value="方案" />
+                <el-option label="QC" value="QC" />
               </el-select>
             </el-form-item>
           </el-col>
         </el-row>
+        <el-form-item label="集数" v-if="editEpisodeOptions.length > 0">
+          <el-select v-model="editForm.episode_number" placeholder="选择集数（选填）" clearable style="width:100%">
+            <el-option v-for="ep in editEpisodeOptions" :key="ep" :label="'EP' + String(ep).padStart(2,'0')" :value="ep" />
+          </el-select>
+        </el-form-item>
         <el-form-item label="内容类型" required>
           <el-select v-model="editForm.content_type" style="width:100%">
             <el-option-group label="前期">
@@ -254,7 +268,7 @@ const form = reactive({
   project_id: null, project_phase: '制作', work_type: '制作',
   content_type: '动画制作', duration_minutes: 0, duration_seconds: 0,
   hours_spent: null, submit_to: '组长', description: '', submit_date: today,
-  delay_reason: '',
+  delay_reason: '', episode_number: null,
 })
 
 // 选择内容类型时自动设置对应的项目阶段
@@ -279,6 +293,13 @@ const isMilestoneOverdue = computed(() => {
   return ms?.is_overdue === true
 })
 
+// EP 集数选项
+const episodeOptions = computed(() => {
+  const proj = activeProjects.value.find(p => p.id === form.project_id)
+  if (!proj || !proj.episode_count) return []
+  return Array.from({length: proj.episode_count}, (_, i) => i + 1)
+})
+
 function formatSecs(s) {
   if (!s) return '0秒'
   const m = Math.floor(s / 60)
@@ -314,6 +335,7 @@ async function handleCreate() {
     form.hours_spent = null
     form.description = ''
     form.delay_reason = ''
+    form.episode_number = null
     load()
   } finally { creating.value = false }
 }
@@ -324,6 +346,7 @@ const editing = ref(false)
 const editForm = reactive({
   _id: null,
   _project_name: '',
+  _project_id: null,
   project_phase: '',
   work_type: '',
   content_type: '',
@@ -334,11 +357,19 @@ const editForm = reactive({
   description: '',
   submit_date: '',
   change_reason: '',
+  episode_number: null,
+})
+
+const editEpisodeOptions = computed(() => {
+  const proj = projects.value.find(p => p.id === editForm._project_id)
+  if (!proj || !proj.episode_count) return []
+  return Array.from({length: proj.episode_count}, (_, i) => i + 1)
 })
 
 function openEdit(row) {
   editForm._id = row.id
   editForm._project_name = row.project_name
+  editForm._project_id = row.project_id
   editForm.project_phase = row.project_phase
   editForm.work_type = row.work_type
   editForm.content_type = row.content_type
@@ -348,6 +379,7 @@ function openEdit(row) {
   editForm.submit_to = row.submit_to
   editForm.description = row.description || ''
   editForm.submit_date = row.submit_date
+  editForm.episode_number = row.episode_number
   editForm.change_reason = ''
   showEdit.value = true
 }
@@ -359,7 +391,7 @@ async function handleUpdate() {
   }
   editing.value = true
   try {
-    const { _id, _project_name, ...payload } = editForm
+    const { _id, _project_name, _project_id, ...payload } = editForm
     await submissionApi.update(_id, payload)
     ElMessage.success('修改成功')
     showEdit.value = false