diff --git a/app/cli.py b/app/cli.py
index 0f25c7e..ef1216c 100644
--- a/app/cli.py
+++ b/app/cli.py
@@ -31,6 +31,7 @@ def crawl(
 
     # 确保数据库和表存在
     import os
+
     os.makedirs(settings.db_path.parent, exist_ok=True)
     _init(engine)
     typer.echo(f"📡 开始抓取 {target} ...")
@@ -63,6 +64,7 @@ def summarize(
     from app.services.summarizer import summarize_batch, summarize_single
 
     import os
+
     os.makedirs(settings.db_path.parent, exist_ok=True)
     _init(engine)
 
@@ -97,6 +99,7 @@ def init_db():
     from app.models import init_db as _init
 
     import os
+
     os.makedirs(settings.db_path.parent, exist_ok=True)
     _init(engine)
     typer.echo(f"✅ 数据库已初始化：{settings.db_path}")
diff --git a/app/config.py b/app/config.py
index e316855..f537bb7 100644
--- a/app/config.py
+++ b/app/config.py
@@ -62,7 +62,7 @@ class Settings(BaseSettings):
         # sqlite:///data/db/papers.db → data/db/papers.db
         url = self.DATABASE_URL
         if url.startswith("sqlite:///"):
-            return BASE_DIR / url[len("sqlite:///"):]
+            return BASE_DIR / url[len("sqlite:///") :]
         raise ValueError(f"Unsupported DATABASE_URL: {url}")
 
     @property
diff --git a/app/main.py b/app/main.py
index 33ceaaf..8943786 100644
--- a/app/main.py
+++ b/app/main.py
@@ -58,7 +58,9 @@ def create_app() -> FastAPI:
 
     # 安全警告
     if settings.ADMIN_TOKEN == "change-me":
-        logger.warning("⚠️  ADMIN_TOKEN is the default value 'change-me'. Please change it in .env!")
+        logger.warning(
+            "⚠️  ADMIN_TOKEN is the default value 'change-me'. Please change it in .env!"
+        )
 
     if settings.APP_HOST not in ("127.0.0.1", "localhost", "::1"):
         logger.warning(
diff --git a/app/models.py b/app/models.py
index eb5006a..378cd5b 100644
--- a/app/models.py
+++ b/app/models.py
@@ -43,13 +43,39 @@ class Paper(Base):
     raw_output_path = Column(String)
     summary_quality = Column(String)
 
-    authors = relationship("PaperAuthor", back_populates="paper", cascade="all, delete-orphan")
-    tags = relationship("PaperTag", back_populates="paper", cascade="all, delete-orphan")
-    summary = relationship("PaperSummary", back_populates="paper", uselist=False, cascade="all, delete-orphan")
-    summary_status = relationship("SummaryStatus", back_populates="paper", uselist=False, cascade="all, delete-orphan")
-    bookmark = relationship("UserBookmark", back_populates="paper", uselist=False, cascade="all, delete-orphan")
-    reading_status = relationship("UserReadingStatus", back_populates="paper", uselist=False, cascade="all, delete-orphan")
-    note = relationship("UserNote", back_populates="paper", uselist=False, cascade="all, delete-orphan")
+    authors = relationship(
+        "PaperAuthor", back_populates="paper", cascade="all, delete-orphan"
+    )
+    tags = relationship(
+        "PaperTag", back_populates="paper", cascade="all, delete-orphan"
+    )
+    summary = relationship(
+        "PaperSummary",
+        back_populates="paper",
+        uselist=False,
+        cascade="all, delete-orphan",
+    )
+    summary_status = relationship(
+        "SummaryStatus",
+        back_populates="paper",
+        uselist=False,
+        cascade="all, delete-orphan",
+    )
+    bookmark = relationship(
+        "UserBookmark",
+        back_populates="paper",
+        uselist=False,
+        cascade="all, delete-orphan",
+    )
+    reading_status = relationship(
+        "UserReadingStatus",
+        back_populates="paper",
+        uselist=False,
+        cascade="all, delete-orphan",
+    )
+    note = relationship(
+        "UserNote", back_populates="paper", uselist=False, cascade="all, delete-orphan"
+    )
 
 
 # ── paper_authors ───────────────────────────────────────────────────────
@@ -58,7 +84,9 @@ class PaperAuthor(Base):
     __table_args__ = (UniqueConstraint("paper_id", "name"),)
 
     id = Column(Integer, primary_key=True, autoincrement=True)
-    paper_id = Column(Integer, ForeignKey("papers.id", ondelete="CASCADE"), nullable=False)
+    paper_id = Column(
+        Integer, ForeignKey("papers.id", ondelete="CASCADE"), nullable=False
+    )
     name = Column(String, nullable=False)
     position = Column(Integer, default=0)
 
@@ -71,7 +99,9 @@ class PaperTag(Base):
     __table_args__ = (UniqueConstraint("paper_id", "tag", "source"),)
 
     id = Column(Integer, primary_key=True, autoincrement=True)
-    paper_id = Column(Integer, ForeignKey("papers.id", ondelete="CASCADE"), nullable=False)
+    paper_id = Column(
+        Integer, ForeignKey("papers.id", ondelete="CASCADE"), nullable=False
+    )
     tag = Column(String, nullable=False)
     source = Column(String, default="hf")
 
@@ -82,7 +112,9 @@ class PaperTag(Base):
 class PaperSummary(Base):
     __tablename__ = "paper_summaries"
 
-    paper_id = Column(Integer, ForeignKey("papers.id", ondelete="CASCADE"), primary_key=True)
+    paper_id = Column(
+        Integer, ForeignKey("papers.id", ondelete="CASCADE"), primary_key=True
+    )
     one_line = Column(Text)
     difficulty = Column(String)
     prerequisites_json = Column(Text)
@@ -111,7 +143,9 @@ class SummaryStatus(Base):
     __table_args__ = (UniqueConstraint("paper_id"),)
 
     id = Column(Integer, primary_key=True, autoincrement=True)
-    paper_id = Column(Integer, ForeignKey("papers.id", ondelete="CASCADE"), nullable=False)
+    paper_id = Column(
+        Integer, ForeignKey("papers.id", ondelete="CASCADE"), nullable=False
+    )
     status = Column(String, nullable=False, default="pending")
     quality = Column(String)
     error_type = Column(String)
@@ -158,7 +192,9 @@ class UserBookmark(Base):
     __table_args__ = (UniqueConstraint("paper_id"),)
 
     id = Column(Integer, primary_key=True, autoincrement=True)
-    paper_id = Column(Integer, ForeignKey("papers.id", ondelete="CASCADE"), nullable=False)
+    paper_id = Column(
+        Integer, ForeignKey("papers.id", ondelete="CASCADE"), nullable=False
+    )
     note = Column(Text)
     created_at = Column(DateTime, nullable=False)
 
@@ -170,7 +206,9 @@ class UserReadingStatus(Base):
     __table_args__ = (UniqueConstraint("paper_id"),)
 
     id = Column(Integer, primary_key=True, autoincrement=True)
-    paper_id = Column(Integer, ForeignKey("papers.id", ondelete="CASCADE"), nullable=False)
+    paper_id = Column(
+        Integer, ForeignKey("papers.id", ondelete="CASCADE"), nullable=False
+    )
     status = Column(String, nullable=False, default="unread")
     updated_at = Column(DateTime, nullable=False)
 
@@ -182,7 +220,9 @@ class UserNote(Base):
     __table_args__ = (UniqueConstraint("paper_id"),)
 
     id = Column(Integer, primary_key=True, autoincrement=True)
-    paper_id = Column(Integer, ForeignKey("papers.id", ondelete="CASCADE"), nullable=False)
+    paper_id = Column(
+        Integer, ForeignKey("papers.id", ondelete="CASCADE"), nullable=False
+    )
     content = Column(Text, nullable=False)
     created_at = Column(DateTime, nullable=False)
     updated_at = Column(DateTime, nullable=False)
diff --git a/app/routes/admin.py b/app/routes/admin.py
index bac16d2..8947c3a 100644
--- a/app/routes/admin.py
+++ b/app/routes/admin.py
@@ -74,7 +74,9 @@ async def admin_crawl(
         db.commit()
     except Exception:
         db.rollback()
-        raise HTTPException(status_code=409, detail=f"Crawl already running for {target_date}")
+        raise HTTPException(
+            status_code=409, detail=f"Crawl already running for {target_date}"
+        )
 
     try:
         result = await crawl_daily(db, target_date)
@@ -96,7 +98,9 @@ async def admin_summarize_batch(
     """批量总结所有 pending 论文。"""
     result = await summarize_batch(db)
     if result.get("status") == "conflict":
-        raise HTTPException(status_code=409, detail=result.get("error", "batch already running"))
+        raise HTTPException(
+            status_code=409, detail=result.get("error", "batch already running")
+        )
     return result
 
 
diff --git a/app/routes/pages.py b/app/routes/pages.py
index b249046..4c12c8d 100644
--- a/app/routes/pages.py
+++ b/app/routes/pages.py
@@ -58,10 +58,13 @@ def day_page(date_str: str, request: Request, db: Session = Depends(get_db)):
         .limit(30)
         .all()
     )
-    available_dates = [d[0].isoformat() if isinstance(d[0], date) else str(d[0]) for d in dates_raw]
+    available_dates = [
+        d[0].isoformat() if isinstance(d[0], date) else str(d[0]) for d in dates_raw
+    ]
 
     return templates.TemplateResponse(
-        request, "index.html",
+        request,
+        "index.html",
         {
             "papers": papers,
             "current_date": date_str,
@@ -105,7 +108,8 @@ def paper_detail(arxiv_id: str, request: Request, db: Session = Depends(get_db))
     images = _get_paper_images(arxiv_id)
 
     return templates.TemplateResponse(
-        request, "detail.html",
+        request,
+        "detail.html",
         {
             "paper": paper,
             "summary_state": summary_state,
@@ -166,7 +170,11 @@ def _get_similar_papers(db: Session, arxiv_id: str, top_k: int = 6) -> list[dict
 
         # 从 DB 加载论文信息
         similar_ids = results["ids"][0]
-        distances = results["distances"][0] if results["distances"] else [0.0] * len(similar_ids)
+        distances = (
+            results["distances"][0]
+            if results["distances"]
+            else [0.0] * len(similar_ids)
+        )
 
         # 排除自身
         papers_info = {}
@@ -186,13 +194,15 @@ def _get_similar_papers(db: Session, arxiv_id: str, top_k: int = 6) -> list[dict
 
         items = []
         for p in papers:
-            items.append({
-                "arxiv_id": p.arxiv_id,
-                "title_zh": p.title_zh or p.title_en,
-                "distance": papers_info.get(p.arxiv_id, 0.0),
-                "paper_date": p.paper_date.isoformat() if p.paper_date else "",
-                "tags": [t.tag for t in p.tags[:3]],
-            })
+            items.append(
+                {
+                    "arxiv_id": p.arxiv_id,
+                    "title_zh": p.title_zh or p.title_en,
+                    "distance": papers_info.get(p.arxiv_id, 0.0),
+                    "paper_date": p.paper_date.isoformat() if p.paper_date else "",
+                    "tags": [t.tag for t in p.tags[:3]],
+                }
+            )
 
         # 按距离排序
         items.sort(key=lambda x: x["distance"])
@@ -215,8 +225,10 @@ def _get_paper_images(arxiv_id: str) -> list[dict]:
     images = []
     for img_file in sorted(images_dir.iterdir()):
         if img_file.suffix.lower() in (".png", ".jpg", ".jpeg", ".gif", ".svg"):
-            images.append({
-                "url": f"/papers/{arxiv_id}/images/{img_file.name}",
-                "name": img_file.name,
-            })
+            images.append(
+                {
+                    "url": f"/papers/{arxiv_id}/images/{img_file.name}",
+                    "name": img_file.name,
+                }
+            )
     return images
diff --git a/app/routes/search.py b/app/routes/search.py
index 0ec43be..df4bbf4 100644
--- a/app/routes/search.py
+++ b/app/routes/search.py
@@ -34,7 +34,9 @@ def search_page(
     db: Session = Depends(get_db),
 ):
     """搜索页面，支持 keyword 和 semantic 模式。"""
-    result = search_papers(db, query=q or None, tag=tag or None, sort=sort, page=page, mode=mode)
+    result = search_papers(
+        db, query=q or None, tag=tag or None, sort=sort, page=page, mode=mode
+    )
     all_tags = get_all_tags(db)
 
     return templates.TemplateResponse(
@@ -72,7 +74,9 @@ def search_api(
     db: Session = Depends(get_db),
 ):
     """搜索 JSON API，支持 keyword 和 semantic 模式。"""
-    result = search_papers(db, query=q or None, tag=tag or None, sort=sort, page=page, mode=mode)
+    result = search_papers(
+        db, query=q or None, tag=tag or None, sort=sort, page=page, mode=mode
+    )
     distances = result.get("distances", {})
 
     items = []
@@ -170,7 +174,9 @@ def _generate_rss_xml(papers: list[Paper], base_url: str, tag: str | None) -> st
         channel_title += f" — {tag}"
     lines.append(f"    <title>{escape(channel_title)}</title>")
     lines.append(f"    <link>{escape(base_url)}</link>")
-    lines.append("    <description>HuggingFace Daily Papers — 中文论文导览站</description>")
+    lines.append(
+        "    <description>HuggingFace Daily Papers — 中文论文导览站</description>"
+    )
     lines.append("    <language>zh-CN</language>")
 
     for paper in papers:
diff --git a/app/services/cleaner.py b/app/services/cleaner.py
index 5916a43..414b6a9 100644
--- a/app/services/cleaner.py
+++ b/app/services/cleaner.py
@@ -61,7 +61,9 @@ def cleanup_tmp(max_age_hours: int = _MAX_TMP_AGE_HOURS) -> dict:
             errors.append(err_msg)
             logger.warning("Failed to clean tmp dir %s: %s", entry.name, exc)
 
-    logger.info("Tmp cleanup: scanned=%d removed=%d errors=%d", scanned, removed, len(errors))
+    logger.info(
+        "Tmp cleanup: scanned=%d removed=%d errors=%d", scanned, removed, len(errors)
+    )
     return {"scanned": scanned, "removed": removed, "errors": errors}
 
 
@@ -109,7 +111,12 @@ async def delete_papers_by_date_range(
     )
 
     total = len(papers)
-    logger.info("Delete papers by date range: %s ~ %s, found %d papers", date_start, date_end, total)
+    logger.info(
+        "Delete papers by date range: %s ~ %s, found %d papers",
+        date_start,
+        date_end,
+        total,
+    )
 
     # 创建 delete job 记录
     job = DataDeleteJob(
@@ -139,9 +146,12 @@ async def delete_papers_by_date_range(
             # 1.5 Phase 5: 从 ChromaDB 删除语义索引
             try:
                 from app.services.embedder import delete_paper
+
                 delete_paper(arxiv_id)
             except Exception:
-                logger.warning("Failed to delete %s from ChromaDB", arxiv_id, exc_info=True)
+                logger.warning(
+                    "Failed to delete %s from ChromaDB", arxiv_id, exc_info=True
+                )
 
             # 2. 删除本地文件 data/papers/{arxiv_id}/
             paper_dir = PAPERS_DIR / arxiv_id
@@ -179,7 +189,9 @@ async def delete_papers_by_date_range(
     job_status = "success"
     if failed_items:
         job_status = "failed" if deleted == 0 else "success"
-        job_error = "; ".join(f"{f['arxiv_id']}: {f['error']}" for f in failed_items[:20])
+        job_error = "; ".join(
+            f"{f['arxiv_id']}: {f['error']}" for f in failed_items[:20]
+        )
 
     job.status = job_status
     job.paper_count = deleted
@@ -210,6 +222,10 @@ async def delete_papers_by_date_range(
     }
     logger.info(
         "Delete job completed: date_range=%s~%s total=%d deleted=%d failed=%d",
-        date_start, date_end, total, deleted, len(failed_items),
+        date_start,
+        date_end,
+        total,
+        deleted,
+        len(failed_items),
     )
     return result
diff --git a/app/services/crawler.py b/app/services/crawler.py
index 371c90e..33897e2 100644
--- a/app/services/crawler.py
+++ b/app/services/crawler.py
@@ -38,20 +38,29 @@ async def fetch_daily(target_date: str, top_n: int | None = None) -> list[dict]:
     async with make_http_client() as client:
         for attempt in range(1, settings.HTTP_MAX_RETRIES + 1):
             try:
-                logger.info("Fetching HF Daily Papers: date=%s attempt=%d", target_date, attempt)
+                logger.info(
+                    "Fetching HF Daily Papers: date=%s attempt=%d", target_date, attempt
+                )
                 resp = await client.get(url, params=params)
                 resp.raise_for_status()
                 data = resp.json()
                 break
             except (httpx.HTTPError, httpx.HTTPStatusError) as exc:
-                logger.warning("Fetch failed (attempt %d/%d): %s", attempt, settings.HTTP_MAX_RETRIES, exc)
+                logger.warning(
+                    "Fetch failed (attempt %d/%d): %s",
+                    attempt,
+                    settings.HTTP_MAX_RETRIES,
+                    exc,
+                )
                 if attempt == settings.HTTP_MAX_RETRIES:
                     raise
         else:
             data = []
 
     papers = data[:top_n]
-    logger.info("Fetched %d papers for %s (raw=%d)", len(papers), target_date, len(data))
+    logger.info(
+        "Fetched %d papers for %s (raw=%d)", len(papers), target_date, len(data)
+    )
     return papers
 
 
@@ -75,8 +84,14 @@ def _parse_paper(item: dict) -> dict:
         "hf_url": f"https://huggingface.co/papers/{arxiv_id}" if arxiv_id else "",
         "arxiv_url": f"https://arxiv.org/abs/{arxiv_id}" if arxiv_id else "",
         "pdf_url": f"https://arxiv.org/pdf/{arxiv_id}.pdf" if arxiv_id else "",
-        "authors": [a.get("name", a) if isinstance(a, dict) else a for a in paper_info.get("authors", [])],
-        "tags": [t.get("name", t) if isinstance(t, dict) else t for t in (paper_info.get("tags") or [])],
+        "authors": [
+            a.get("name", a) if isinstance(a, dict) else a
+            for a in paper_info.get("authors", [])
+        ],
+        "tags": [
+            t.get("name", t) if isinstance(t, dict) else t
+            for t in (paper_info.get("tags") or [])
+        ],
     }
 
 
@@ -133,15 +148,25 @@ def upsert_papers(db: Session, papers_raw: list[dict], paper_date: str) -> list[
                     "INSERT INTO papers_fts(rowid, title_en, abstract, authors, tags) "
                     "VALUES (:id, :title, :abstract, :authors, :tags)"
                 ),
-                {"id": paper.id, "title": meta["title_en"], "abstract": meta["abstract"] or "",
-                 "authors": authors_text, "tags": tags_text},
+                {
+                    "id": paper.id,
+                    "title": meta["title_en"],
+                    "abstract": meta["abstract"] or "",
+                    "authors": authors_text,
+                    "tags": tags_text,
+                },
             )
 
             new_papers.append(paper)
             logger.debug("Inserted new paper: %s", arxiv_id)
 
     db.commit()
-    logger.info("Upserted %d papers (%d new) for %s", len(papers_raw), len(new_papers), paper_date)
+    logger.info(
+        "Upserted %d papers (%d new) for %s",
+        len(papers_raw),
+        len(new_papers),
+        paper_date,
+    )
     return new_papers
 
 
@@ -165,7 +190,12 @@ async def crawl_daily(db: Session, target_date: str, top_n: int | None = None) -
         log_entry.papers_new = len(new_papers)
         log_entry.completed_at = datetime.now(timezone.utc)
         db.commit()
-        return {"found": len(raw_papers), "new": len(new_papers), "status": "success", "error": None}
+        return {
+            "found": len(raw_papers),
+            "new": len(new_papers),
+            "status": "success",
+            "error": None,
+        }
     except Exception as exc:
         logger.exception("Crawl failed for %s", target_date)
         log_entry.status = "failed"
diff --git a/app/services/embedder.py b/app/services/embedder.py
index 015a288..698931b 100644
--- a/app/services/embedder.py
+++ b/app/services/embedder.py
@@ -50,7 +50,9 @@ class ChromaManager:
         """获取或创建 papers_embeddings collection。"""
         try:
             col = self._client.get_collection("papers_embeddings")
-            logger.info("ChromaDB collection 'papers_embeddings' loaded, count=%d", col.count())
+            logger.info(
+                "ChromaDB collection 'papers_embeddings' loaded, count=%d", col.count()
+            )
             return col
         except Exception:
             pass
@@ -228,7 +230,9 @@ def index_paper(paper_id: str, texts_dict: dict | None = None) -> bool:
         col.upsert(
             ids=[arxiv_id],
             embeddings=[vec],
-            metadatas=[{"arxiv_id": arxiv_id, "title_zh": title_zh, "paper_date": paper_date}],
+            metadatas=[
+                {"arxiv_id": arxiv_id, "title_zh": title_zh, "paper_date": paper_date}
+            ],
         )
         logger.info("Indexed paper %s in ChromaDB", arxiv_id)
         return True
@@ -262,7 +266,9 @@ def index_batch(paper_ids: list[str]) -> dict:
         else:
             failed += 1
 
-    logger.info("Batch index: total=%d success=%d failed=%d", len(paper_ids), success, failed)
+    logger.info(
+        "Batch index: total=%d success=%d failed=%d", len(paper_ids), success, failed
+    )
     return {"total": len(paper_ids), "success": success, "failed": failed}
 
 
diff --git a/app/services/pdf_downloader.py b/app/services/pdf_downloader.py
index cfb0d5a..6db50d0 100644
--- a/app/services/pdf_downloader.py
+++ b/app/services/pdf_downloader.py
@@ -78,6 +78,7 @@ async def download_source_zip(arxiv_id: str, source_url: str, dest_dir: Path) ->
     except zipfile.BadZipFile:
         # 可能是 tar.gz
         import tarfile
+
         try:
             with tarfile.open(zip_path, "r:*") as tf:
                 tf.extractall(dest_dir, filter="data")
diff --git a/app/services/pi_client.py b/app/services/pi_client.py
index b7aae2b..b51b576 100644
--- a/app/services/pi_client.py
+++ b/app/services/pi_client.py
@@ -53,7 +53,9 @@ def write_meta_json(paper) -> Path:
         "tags": tags,
         "upvotes": paper.upvotes,
     }
-    meta_path.write_text(json.dumps(meta, ensure_ascii=False, indent=2), encoding="utf-8")
+    meta_path.write_text(
+        json.dumps(meta, ensure_ascii=False, indent=2), encoding="utf-8"
+    )
     return meta_path
 
 
@@ -88,9 +90,7 @@ async def call_pi(meta_path: Path, pdf_path: Path) -> str:
     except asyncio.TimeoutError:
         proc.kill()
         await proc.wait()
-        raise PiTimeoutError(
-            f"pi timed out after {settings.SUMMARY_TIMEOUT_SECONDS}s"
-        )
+        raise PiTimeoutError(f"pi timed out after {settings.SUMMARY_TIMEOUT_SECONDS}s")
 
     if proc.returncode != 0:
         raise PiProcessError(proc.returncode, stderr.decode("utf-8", errors="replace"))
diff --git a/app/services/scheduler.py b/app/services/scheduler.py
index 9f80c7b..f0915ff 100644
--- a/app/services/scheduler.py
+++ b/app/services/scheduler.py
@@ -132,18 +132,26 @@ async def _daily_pipeline() -> None:
             # Step 1: 抓取
             logger.info("Scheduler pipeline: crawl %s", today)
             crawl_result = await crawl_daily(db, today)
-            logger.info("Scheduler pipeline: crawl done, found=%d new=%d",
-                        crawl_result.get("found", 0), crawl_result.get("new", 0))
+            logger.info(
+                "Scheduler pipeline: crawl done, found=%d new=%d",
+                crawl_result.get("found", 0),
+                crawl_result.get("new", 0),
+            )
 
             # Step 2: 总结 pending 论文
             logger.info("Scheduler pipeline: summarize batch")
             summarize_result = await summarize_batch(db)
-            logger.info("Scheduler pipeline: summarize done, result=%s", summarize_result)
+            logger.info(
+                "Scheduler pipeline: summarize done, result=%s", summarize_result
+            )
 
             # Step 3: 清理临时文件
             logger.info("Scheduler pipeline: cleanup tmp")
             cleanup_result = cleanup_tmp()
-            logger.info("Scheduler pipeline: cleanup done, removed=%d", cleanup_result.get("removed", 0))
+            logger.info(
+                "Scheduler pipeline: cleanup done, removed=%d",
+                cleanup_result.get("removed", 0),
+            )
 
             log_entry.status = "success"
 
diff --git a/app/services/schemas.py b/app/services/schemas.py
index 2b2838b..9dd8fd3 100644
--- a/app/services/schemas.py
+++ b/app/services/schemas.py
@@ -132,7 +132,9 @@ def flatten_for_db(schema: SummarySchema) -> dict:
     return {
         "one_line": schema.one_line,
         "difficulty": schema.difficulty,
-        "prerequisites_json": json.dumps(schema.prerequisites.model_dump(), ensure_ascii=False),
+        "prerequisites_json": json.dumps(
+            schema.prerequisites.model_dump(), ensure_ascii=False
+        ),
         "motivation_problem": schema.motivation.problem,
         "motivation_goal": schema.motivation.goal,
         "motivation_gap": schema.motivation.gap,
@@ -140,11 +142,19 @@ def flatten_for_db(schema: SummarySchema) -> dict:
         "method_key_idea": schema.method.key_idea,
         "method_steps_json": json.dumps(schema.method.steps, ensure_ascii=False),
         "method_novelty": schema.method.novelty,
-        "results_main_json": json.dumps(schema.results.main_findings, ensure_ascii=False),
-        "results_benchmarks_json": json.dumps(schema.results.benchmarks, ensure_ascii=False),
+        "results_main_json": json.dumps(
+            schema.results.main_findings, ensure_ascii=False
+        ),
+        "results_benchmarks_json": json.dumps(
+            schema.results.benchmarks, ensure_ascii=False
+        ),
         "limitations_json": json.dumps(schema.results.limitations, ensure_ascii=False),
-        "weaknesses_json": json.dumps(schema.improvements.weaknesses, ensure_ascii=False),
-        "future_work_json": json.dumps(schema.improvements.future_work, ensure_ascii=False),
+        "weaknesses_json": json.dumps(
+            schema.improvements.weaknesses, ensure_ascii=False
+        ),
+        "future_work_json": json.dumps(
+            schema.improvements.future_work, ensure_ascii=False
+        ),
         "reproducibility": schema.improvements.reproducibility,
         "full_json": schema.model_dump_json(ensure_ascii=False),
         "updated_at": datetime.now(timezone.utc),
diff --git a/app/services/searcher.py b/app/services/searcher.py
index 9dd88a1..7cf1385 100644
--- a/app/services/searcher.py
+++ b/app/services/searcher.py
@@ -90,12 +90,24 @@ def search_papers(
 
     if match_expr:
         return _search_with_fts(
-            db, match_expr, tag_join, tag_where, tag_params,
-            sort, page, page_size, offset,
+            db,
+            match_expr,
+            tag_join,
+            tag_where,
+            tag_params,
+            sort,
+            page,
+            page_size,
+            offset,
         )
     else:
         return _search_tag_only(
-            db, tag, sort, page, page_size, offset,
+            db,
+            tag,
+            sort,
+            page,
+            page_size,
+            offset,
         )
 
 
@@ -114,7 +126,11 @@ def _search_with_fts(
     params = {"query": match_expr, "limit": page_size, "offset": offset}
     params.update(tag_params)
 
-    order = "bm25(papers_fts)" if sort == "relevance" else "p.paper_date DESC, p.upvotes DESC"
+    order = (
+        "bm25(papers_fts)"
+        if sort == "relevance"
+        else "p.paper_date DESC, p.upvotes DESC"
+    )
 
     # ── 主查询：取 ID + rank + snippet ──
     rows_sql = text(f"""
@@ -145,12 +161,11 @@ def _search_with_fts(
     total = db.execute(count_sql, params).scalar() or 0
 
     paper_ids = [row[0] for row in fts_rows]
-    snippets = {
-        row[0]: {"title_zh": row[2], "abstract": row[3]}
-        for row in fts_rows
-    }
+    snippets = {row[0]: {"title_zh": row[2], "abstract": row[3]} for row in fts_rows}
 
-    papers = _load_papers_by_ids(db, paper_ids, sort, {row[0]: row[1] for row in fts_rows})
+    papers = _load_papers_by_ids(
+        db, paper_ids, sort, {row[0]: row[1] for row in fts_rows}
+    )
 
     return {
         "results": papers,
@@ -188,7 +203,10 @@ def _search_semantic(
             "JOIN paper_tags pt ON pt.paper_id = p.id" if tag else "",
             "AND pt.tag = :tag" if tag else "",
             {"tag": tag} if tag else {},
-            sort, page, page_size, (page - 1) * page_size,
+            sort,
+            page,
+            page_size,
+            (page - 1) * page_size,
         )
 
     # 按 arxiv_id 从 DB 加载完整数据
@@ -218,7 +236,7 @@ def _search_semantic(
     # 分页
     total = len(papers)
     start = (page - 1) * page_size
-    page_papers = papers[start:start + page_size]
+    page_papers = papers[start : start + page_size]
 
     return {
         "results": page_papers,
@@ -239,7 +257,11 @@ def _search_tag_only(
     offset: int,
 ) -> dict:
     """只有标签筛选，无关键词。"""
-    order = "p.paper_date DESC, p.upvotes DESC" if sort == "date" else "p.paper_date DESC, p.upvotes DESC"
+    order = (
+        "p.paper_date DESC, p.upvotes DESC"
+        if sort == "date"
+        else "p.paper_date DESC, p.upvotes DESC"
+    )
 
     rows_sql = text(f"""
         SELECT p.id
@@ -249,7 +271,9 @@ def _search_tag_only(
         ORDER BY {order}
         LIMIT :limit OFFSET :offset
     """)
-    rows = db.execute(rows_sql, {"tag": tag, "limit": page_size, "offset": offset}).fetchall()
+    rows = db.execute(
+        rows_sql, {"tag": tag, "limit": page_size, "offset": offset}
+    ).fetchall()
 
     count_sql = text("""
         SELECT COUNT(DISTINCT p.id)
diff --git a/app/services/summarizer.py b/app/services/summarizer.py
index b3450d8..94d70d5 100644
--- a/app/services/summarizer.py
+++ b/app/services/summarizer.py
@@ -191,7 +191,11 @@ async def summarize_one(
 
     # 跳过 permanent_failure（除非 force）
     if status.status == "permanent_failure" and not force:
-        return {"arxiv_id": arxiv_id, "status": "skipped", "reason": "permanent_failure"}
+        return {
+            "arxiv_id": arxiv_id,
+            "status": "skipped",
+            "reason": "permanent_failure",
+        }
 
     if semaphore:
         await semaphore.acquire()
@@ -270,7 +274,9 @@ async def _do_summarize_one(db: Session, paper: Paper) -> dict:
             }
             index_paper(arxiv_id, texts_dict)
         except Exception:
-            logger.warning("Failed to index paper %s in ChromaDB", arxiv_id, exc_info=True)
+            logger.warning(
+                "Failed to index paper %s in ChromaDB", arxiv_id, exc_info=True
+            )
 
         logger.info("Summarize done: %s quality=%s", arxiv_id, quality)
         return {"arxiv_id": arxiv_id, "status": "done", "quality": quality}
@@ -430,7 +436,13 @@ async def summarize_batch(
             log_entry.papers_new = 0
             log_entry.completed_at = datetime.now(timezone.utc)
             release_lock(db, lock)
-            return {"status": "success", "done": 0, "failed": 0, "skipped": 0, "total": 0}
+            return {
+                "status": "success",
+                "done": 0,
+                "failed": 0,
+                "skipped": 0,
+                "total": 0,
+            }
 
         # 并发控制
         semaphore = asyncio.Semaphore(settings.SUMMARY_CONCURRENCY)
@@ -482,7 +494,10 @@ async def summarize_batch(
 
         logger.info(
             "Summarize batch done: total=%d done=%d failed=%d skipped=%d",
-            total, done, failed, skipped,
+            total,
+            done,
+            failed,
+            skipped,
         )
         return {
             "status": "success" if failed == 0 else "partial",
diff --git a/app/services/trends.py b/app/services/trends.py
index 51e7824..e460092 100644
--- a/app/services/trends.py
+++ b/app/services/trends.py
@@ -13,33 +13,33 @@ def get_trends_data(db: Session) -> dict:
     thirty_days_ago = (date.today() - timedelta(days=30)).isoformat()
 
     # 1. 按日论文数量（近 30 天）
-    daily_rows = db.execute(text("""
+    daily_rows = db.execute(
+        text("""
         SELECT paper_date, COUNT(*) as cnt
         FROM papers
         WHERE paper_date >= :start_date
         GROUP BY paper_date
         ORDER BY paper_date ASC
-    """), {"start_date": thirty_days_ago}).fetchall()
-    daily_counts = [
-        {"date": str(row[0]), "count": row[1]}
-        for row in daily_rows
-    ]
+    """),
+        {"start_date": thirty_days_ago},
+    ).fetchall()
+    daily_counts = [{"date": str(row[0]), "count": row[1]} for row in daily_rows]
 
     # 2. 热门标签 Top 20
-    tag_rows = db.execute(text("""
+    tag_rows = db.execute(
+        text("""
         SELECT tag, COUNT(*) as cnt
         FROM paper_tags
         GROUP BY tag
         ORDER BY cnt DESC
         LIMIT 20
-    """)).fetchall()
-    top_tags = [
-        {"tag": row[0], "count": row[1]}
-        for row in tag_rows
-    ]
+    """)
+    ).fetchall()
+    top_tags = [{"tag": row[0], "count": row[1]} for row in tag_rows]
 
     # 3. Upvotes 分布
-    upvote_rows = db.execute(text("""
+    upvote_rows = db.execute(
+        text("""
         SELECT
             CASE
                 WHEN upvotes >= 100 THEN '100+'
@@ -53,25 +53,22 @@ def get_trends_data(db: Session) -> dict:
         FROM papers
         GROUP BY bucket
         ORDER BY MIN(upvotes) DESC
-    """)).fetchall()
-    upvotes_dist = [
-        {"range": row[0], "count": row[1]}
-        for row in upvote_rows
-    ]
+    """)
+    ).fetchall()
+    upvotes_dist = [{"range": row[0], "count": row[1]} for row in upvote_rows]
 
     # 4. 总结完成率
-    summary_rows = db.execute(text("""
+    summary_rows = db.execute(
+        text("""
         SELECT
             COALESCE(ss.status, 'none') as status,
             COUNT(*) as cnt
         FROM papers p
         LEFT JOIN summary_status ss ON ss.paper_id = p.id
         GROUP BY status
-    """)).fetchall()
-    summary_completion = [
-        {"status": row[0], "count": row[1]}
-        for row in summary_rows
-    ]
+    """)
+    ).fetchall()
+    summary_completion = [{"status": row[0], "count": row[1]} for row in summary_rows]
 
     return {
         "daily_counts": daily_counts,
diff --git a/app/static/css/style.css b/app/static/css/style.css
index a8f85d1..5c16b04 100644
--- a/app/static/css/style.css
+++ b/app/static/css/style.css
@@ -14,7 +14,13 @@
   --max-width: 960px;
 }
 
-*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
+*,
+*::before,
+*::after {
+  box-sizing: border-box;
+  margin: 0;
+  padding: 0;
+}
 
 body {
   font-family: var(--font-sans);
@@ -24,8 +30,14 @@ body {
   -webkit-font-smoothing: antialiased;
 }
 
-a { color: var(--accent); text-decoration: none; }
-a:hover { color: var(--accent-hover); text-decoration: underline; }
+a {
+  color: var(--accent);
+  text-decoration: none;
+}
+a:hover {
+  color: var(--accent-hover);
+  text-decoration: underline;
+}
 
 /* ── Header ─────────────────────────────────────────────────────── */
 .site-header {
@@ -52,9 +64,18 @@ a:hover { color: var(--accent-hover); text-decoration: underline; }
   color: var(--ink);
 }
 
-.nav-links { display: flex; gap: 16px; margin-left: auto; }
-.nav-links a { font-size: 0.9rem; color: var(--ink-light); }
-.nav-links a:hover { color: var(--accent); }
+.nav-links {
+  display: flex;
+  gap: 16px;
+  margin-left: auto;
+}
+.nav-links a {
+  font-size: 0.9rem;
+  color: var(--ink-light);
+}
+.nav-links a:hover {
+  color: var(--accent);
+}
 
 /* ── Container ──────────────────────────────────────────────────── */
 .container {
@@ -88,7 +109,11 @@ a:hover { color: var(--accent-hover); text-decoration: underline; }
   color: var(--ink-light);
   transition: all 0.2s;
 }
-.date-nav-btn:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }
+.date-nav-btn:hover {
+  border-color: var(--accent);
+  color: var(--accent);
+  text-decoration: none;
+}
 
 /* ── Date Chips ─────────────────────────────────────────────────── */
 .date-quick-nav {
@@ -111,11 +136,23 @@ a:hover { color: var(--accent-hover); text-decoration: underline; }
   font-size: 0.8rem;
   color: var(--ink-light);
 }
-.date-chip:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }
-.date-chip.active { background: var(--accent); color: #fff; border-color: var(--accent); }
+.date-chip:hover {
+  border-color: var(--accent);
+  color: var(--accent);
+  text-decoration: none;
+}
+.date-chip.active {
+  background: var(--accent);
+  color: #fff;
+  border-color: var(--accent);
+}
 
 /* ── Paper Card ─────────────────────────────────────────────────── */
-.paper-list { display: flex; flex-direction: column; gap: 16px; }
+.paper-list {
+  display: flex;
+  flex-direction: column;
+  gap: 16px;
+}
 
 .paper-card {
   background: var(--surface);
@@ -124,7 +161,9 @@ a:hover { color: var(--accent-hover); text-decoration: underline; }
   padding: 20px 24px;
   transition: box-shadow 0.2s;
 }
-.paper-card:hover { box-shadow: 0 2px 12px var(--shadow); }
+.paper-card:hover {
+  box-shadow: 0 2px 12px var(--shadow);
+}
 
 .paper-card-header {
   display: flex;
@@ -140,8 +179,12 @@ a:hover { color: var(--accent-hover); text-decoration: underline; }
   line-height: 1.5;
   flex: 1;
 }
-.paper-title a { color: var(--ink); }
-.paper-title a:hover { color: var(--accent); }
+.paper-title a {
+  color: var(--ink);
+}
+.paper-title a:hover {
+  color: var(--accent);
+}
 
 .paper-upvotes {
   font-size: 0.85rem;
@@ -149,7 +192,8 @@ a:hover { color: var(--accent-hover); text-decoration: underline; }
   white-space: nowrap;
 }
 
-.paper-one-line, .paper-abstract-preview {
+.paper-one-line,
+.paper-abstract-preview {
   margin-top: 8px;
   color: var(--ink-light);
   font-size: 0.92rem;
@@ -191,11 +235,27 @@ a:hover { color: var(--accent-hover); text-decoration: underline; }
   padding: 2px 8px;
   border-radius: 3px;
 }
-.summary-none { background: #f0f0f0; color: #888; }
-.summary-pending { background: #fff3e0; color: #e67e22; }
-.summary-processing { background: #e3f2fd; color: #1976d2; }
-.summary-done { background: #e8f5e9; color: #388e3c; }
-.summary-failed, .summary-permanent_failure { background: #fce4ec; color: #c62828; }
+.summary-none {
+  background: #f0f0f0;
+  color: #888;
+}
+.summary-pending {
+  background: #fff3e0;
+  color: #e67e22;
+}
+.summary-processing {
+  background: #e3f2fd;
+  color: #1976d2;
+}
+.summary-done {
+  background: #e8f5e9;
+  color: #388e3c;
+}
+.summary-failed,
+.summary-permanent_failure {
+  background: #fce4ec;
+  color: #c62828;
+}
 
 .btn-detail {
   font-size: 0.85rem;
@@ -209,11 +269,19 @@ a:hover { color: var(--accent-hover); text-decoration: underline; }
   padding: 60px 20px;
   color: var(--ink-light);
 }
-.empty-state p:first-child { font-size: 1.2rem; }
-.hint { font-size: 0.85rem; margin-top: 8px; }
+.empty-state p:first-child {
+  font-size: 1.2rem;
+}
+.hint {
+  font-size: 0.85rem;
+  margin-top: 8px;
+}
 
 /* ── Paper Detail ───────────────────────────────────────────────── */
-.paper-detail { max-width: 780px; margin: 0 auto; }
+.paper-detail {
+  max-width: 780px;
+  margin: 0 auto;
+}
 
 .back-link {
   display: inline-block;
@@ -246,7 +314,12 @@ a:hover { color: var(--accent-hover); text-decoration: underline; }
   margin-bottom: 12px;
 }
 
-.detail-tags { margin-bottom: 12px; display: flex; gap: 6px; flex-wrap: wrap; }
+.detail-tags {
+  margin-bottom: 12px;
+  display: flex;
+  gap: 6px;
+  flex-wrap: wrap;
+}
 
 .detail-links {
   display: flex;
@@ -261,7 +334,11 @@ a:hover { color: var(--accent-hover); text-decoration: underline; }
   font-size: 0.85rem;
   color: var(--ink-light);
 }
-.ext-link:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }
+.ext-link:hover {
+  border-color: var(--accent);
+  color: var(--accent);
+  text-decoration: none;
+}
 
 /* ── Summary Sections ───────────────────────────────────────────── */
 .summary-section {
@@ -291,8 +368,14 @@ a:hover { color: var(--accent-hover); text-decoration: underline; }
   line-height: 1.6;
 }
 
-.abstract-section { background: #faf8f5; }
-.abstract-en { font-size: 0.9rem; color: var(--ink-light); font-style: italic; }
+.abstract-section {
+  background: #faf8f5;
+}
+.abstract-en {
+  font-size: 0.9rem;
+  color: var(--ink-light);
+  font-style: italic;
+}
 
 /* ── Summary Placeholders ───────────────────────────────────────── */
 .summary-placeholder {
@@ -301,10 +384,20 @@ a:hover { color: var(--accent-hover); text-decoration: underline; }
   border-radius: var(--radius);
   margin-bottom: 24px;
 }
-.summary-placeholder.processing { background: #e3f2fd; }
-.summary-placeholder.failed { background: #fce4ec; }
-.summary-placeholder.none { background: #f5f5f5; }
-.error-detail { font-size: 0.85rem; color: #c62828; margin-top: 8px; }
+.summary-placeholder.processing {
+  background: #e3f2fd;
+}
+.summary-placeholder.failed {
+  background: #fce4ec;
+}
+.summary-placeholder.none {
+  background: #f5f5f5;
+}
+.error-detail {
+  font-size: 0.85rem;
+  color: #c62828;
+  margin-top: 8px;
+}
 
 .quality-warning {
   padding: 10px 16px;
@@ -384,7 +477,9 @@ a:hover { color: var(--accent-hover); text-decoration: underline; }
   cursor: pointer;
   transition: background 0.2s;
 }
-.search-btn:hover { background: var(--accent-hover); }
+.search-btn:hover {
+  background: var(--accent-hover);
+}
 
 /* ── Tag Filter ─────────────────────────────────────────────────── */
 .tag-filter {
@@ -407,8 +502,16 @@ a:hover { color: var(--accent-hover); text-decoration: underline; }
   font-size: 0.8rem;
   color: var(--ink-light);
 }
-.tag-chip:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }
-.tag-chip.active { background: var(--accent); color: #fff; border-color: var(--accent); }
+.tag-chip:hover {
+  border-color: var(--accent);
+  color: var(--accent);
+  text-decoration: none;
+}
+.tag-chip.active {
+  background: var(--accent);
+  color: #fff;
+  border-color: var(--accent);
+}
 
 /* ── Search Meta & Sort ─────────────────────────────────────────── */
 .search-meta {
@@ -423,9 +526,18 @@ a:hover { color: var(--accent-hover); text-decoration: underline; }
   color: var(--ink-light);
   font-size: 0.85rem;
 }
-.sort-toggle a.active { color: var(--accent); font-weight: 600; }
-.sort-toggle a:hover { color: var(--accent); text-decoration: none; }
-.sort-divider { color: var(--border); margin: 0 4px; }
+.sort-toggle a.active {
+  color: var(--accent);
+  font-weight: 600;
+}
+.sort-toggle a:hover {
+  color: var(--accent);
+  text-decoration: none;
+}
+.sort-divider {
+  color: var(--border);
+  margin: 0 4px;
+}
 
 /* ── Search Highlight ───────────────────────────────────────────── */
 mark {
@@ -464,7 +576,11 @@ mark {
   font-size: 0.85rem;
   color: var(--ink-light);
 }
-.page-btn:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }
+.page-btn:hover {
+  border-color: var(--accent);
+  color: var(--accent);
+  text-decoration: none;
+}
 .page-info {
   font-size: 0.85rem;
   color: var(--ink-light);
@@ -494,8 +610,16 @@ mark {
   font-size: 0.85rem;
   color: var(--ink-light);
 }
-.filter-chip:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }
-.filter-chip.active { background: var(--accent); color: #fff; border-color: var(--accent); }
+.filter-chip:hover {
+  border-color: var(--accent);
+  color: var(--accent);
+  text-decoration: none;
+}
+.filter-chip.active {
+  background: var(--accent);
+  color: #fff;
+  border-color: var(--accent);
+}
 
 /* ── Paper Card Footer (enhanced) ──────────────────────────────── */
 .paper-footer {
@@ -528,8 +652,12 @@ mark {
   transition: color 0.2s;
   line-height: 1;
 }
-.btn-bookmark:hover { color: var(--accent); }
-.btn-bookmark.active { color: #f0a500; }
+.btn-bookmark:hover {
+  color: var(--accent);
+}
+.btn-bookmark.active {
+  color: #f0a500;
+}
 
 /* ── Reading Badge ──────────────────────────────────────────────── */
 .reading-badge {
@@ -537,24 +665,61 @@ mark {
   padding: 2px 6px;
   border-radius: 3px;
 }
-.reading-unread { background: #f0f0f0; color: #888; }
-.reading-skimmed { background: #e3f2fd; color: #1976d2; }
-.reading-read_summary { background: #e8f5e9; color: #388e3c; }
-.reading-read_full { background: #e8f5e9; color: #2e7d32; font-weight: 500; }
+.reading-unread {
+  background: #f0f0f0;
+  color: #888;
+}
+.reading-skimmed {
+  background: #e3f2fd;
+  color: #1976d2;
+}
+.reading-read_summary {
+  background: #e8f5e9;
+  color: #388e3c;
+}
+.reading-read_full {
+  background: #e8f5e9;
+  color: #2e7d32;
+  font-weight: 500;
+}
 
 /* ── Responsive ─────────────────────────────────────────────────── */
 @media (max-width: 640px) {
-  .container { padding: 16px; }
-  .nav-bar { padding: 10px 16px; }
-  .nav-search-input { width: 120px; }
-  .date-nav { gap: 8px; }
-  .date-title { font-size: 1.2rem; }
-  .paper-card { padding: 14px 16px; }
-  .detail-title { font-size: 1.3rem; }
-  .detail-meta { flex-direction: column; gap: 4px; }
-  .search-form { flex-direction: column; }
-  .reading-list-filters { gap: 4px; }
-  .filter-chip { padding: 4px 10px; font-size: 0.8rem; }
+  .container {
+    padding: 16px;
+  }
+  .nav-bar {
+    padding: 10px 16px;
+  }
+  .nav-search-input {
+    width: 120px;
+  }
+  .date-nav {
+    gap: 8px;
+  }
+  .date-title {
+    font-size: 1.2rem;
+  }
+  .paper-card {
+    padding: 14px 16px;
+  }
+  .detail-title {
+    font-size: 1.3rem;
+  }
+  .detail-meta {
+    flex-direction: column;
+    gap: 4px;
+  }
+  .search-form {
+    flex-direction: column;
+  }
+  .reading-list-filters {
+    gap: 4px;
+  }
+  .filter-chip {
+    padding: 4px 10px;
+    font-size: 0.8rem;
+  }
 }
 
 /* ── Search Mode Toggle (Phase 5) ─────────────────────────────── */
@@ -575,8 +740,12 @@ mark {
   align-items: center;
   gap: 4px;
 }
-.mode-option input[type="radio"] { display: none; }
-.mode-option:hover { background: var(--bg); }
+.mode-option input[type="radio"] {
+  display: none;
+}
+.mode-option:hover {
+  background: var(--bg);
+}
 .mode-option.active {
   background: var(--accent);
   color: #fff;
@@ -612,12 +781,16 @@ mark {
   padding: 10px 0;
   border-bottom: 1px solid var(--border);
 }
-.similar-paper-item:last-child { border-bottom: none; }
+.similar-paper-item:last-child {
+  border-bottom: none;
+}
 .similar-paper-title a {
   font-size: 0.92rem;
   color: var(--ink);
 }
-.similar-paper-title a:hover { color: var(--accent); }
+.similar-paper-title a:hover {
+  color: var(--accent);
+}
 .similar-paper-dist {
   font-size: 0.8rem;
   color: var(--ink-light);
@@ -654,7 +827,9 @@ mark {
   max-height: 300px;
 }
 @media (max-width: 768px) {
-  .charts-grid { grid-template-columns: 1fr; }
+  .charts-grid {
+    grid-template-columns: 1fr;
+  }
 }
 
 /* ── Compare Page (Phase 5) ────────────────────────────────────── */
diff --git a/app/templates/admin_logs.html b/app/templates/admin_logs.html
index ce14513..805ee8b 100644
--- a/app/templates/admin_logs.html
+++ b/app/templates/admin_logs.html
@@ -1,8 +1,5 @@
-{% extends "base.html" %}
-
-{% block title %}管理日志 — HF Daily Papers{% endblock %}
-
-{% block content %}
+{% extends "base.html" %} {% block title %}管理日志 — HF Daily Papers{% endblock
+%} {% block content %}
 <div class="admin-logs-page">
   <h1 class="page-heading">📋 管理日志</h1>
 
@@ -34,21 +31,31 @@
           {% for log in crawl_logs %}
           <tr>
             <td>{{ log.id }}</td>
-            <td><span class="task-badge task-{{ log.task }}">{{ log.task }}</span></td>
+            <td>
+              <span class="task-badge task-{{ log.task }}">{{ log.task }}</span>
+            </td>
             <td>
               <span class="status-badge status-{{ log.status }}">
-                {% if log.status == 'success' %}✓ 成功
-                {% elif log.status == 'running' %}⟳ 运行中
-                {% elif log.status == 'failed' %}✗ 失败
-                {% else %}{{ log.status }}{% endif %}
+                {% if log.status == 'success' %}✓ 成功 {% elif log.status ==
+                'running' %}⟳ 运行中 {% elif log.status == 'failed' %}✗ 失败 {%
+                else %}{{ log.status }}{% endif %}
               </span>
             </td>
             <td>{{ log.date or '-' }}</td>
             <td>{{ log.papers_found or 0 }}</td>
             <td>{{ log.papers_new or 0 }}</td>
-            <td class="time-cell">{{ log.started_at.strftime('%m-%d %H:%M') if log.started_at else '-' }}</td>
-            <td class="time-cell">{{ log.completed_at.strftime('%m-%d %H:%M') if log.completed_at else '-' }}</td>
-            <td class="error-cell" title="{{ log.error or '' }}">{{ log.error[:80] + '...' if log.error and log.error|length > 80 else (log.error or '-') }}</td>
+            <td class="time-cell">
+              {{ log.started_at.strftime('%m-%d %H:%M') if log.started_at else
+              '-' }}
+            </td>
+            <td class="time-cell">
+              {{ log.completed_at.strftime('%m-%d %H:%M') if log.completed_at
+              else '-' }}
+            </td>
+            <td class="error-cell" title="{{ log.error or '' }}">
+              {{ log.error[:80] + '...' if log.error and log.error|length > 80
+              else (log.error or '-') }}
+            </td>
           </tr>
           {% endfor %}
         </tbody>
@@ -90,15 +97,23 @@
             <td>{{ job.paper_count or 0 }}</td>
             <td>
               <span class="status-badge status-{{ job.status }}">
-                {% if job.status == 'success' %}✓ 成功
-                {% elif job.status == 'running' %}⟳ 运行中
-                {% elif job.status == 'failed' %}✗ 失败
-                {% else %}{{ job.status }}{% endif %}
+                {% if job.status == 'success' %}✓ 成功 {% elif job.status ==
+                'running' %}⟳ 运行中 {% elif job.status == 'failed' %}✗ 失败 {%
+                else %}{{ job.status }}{% endif %}
               </span>
             </td>
-            <td class="time-cell">{{ job.started_at.strftime('%m-%d %H:%M') if job.started_at else '-' }}</td>
-            <td class="time-cell">{{ job.completed_at.strftime('%m-%d %H:%M') if job.completed_at else '-' }}</td>
-            <td class="error-cell" title="{{ job.error or '' }}">{{ job.error[:80] + '...' if job.error and job.error|length > 80 else (job.error or '-') }}</td>
+            <td class="time-cell">
+              {{ job.started_at.strftime('%m-%d %H:%M') if job.started_at else
+              '-' }}
+            </td>
+            <td class="time-cell">
+              {{ job.completed_at.strftime('%m-%d %H:%M') if job.completed_at
+              else '-' }}
+            </td>
+            <td class="error-cell" title="{{ job.error or '' }}">
+              {{ job.error[:80] + '...' if job.error and job.error|length > 80
+              else (job.error or '-') }}
+            </td>
           </tr>
           {% endfor %}
         </tbody>
@@ -116,16 +131,24 @@
   <div class="admin-actions">
     <h2 class="admin-actions-title">管理操作</h2>
     <div class="admin-action-buttons">
-      <button class="admin-action-btn" onclick="adminAction('crawl')">🔄 抓取今天</button>
-      <button class="admin-action-btn" onclick="adminAction('summarize')">📝 批量总结</button>
-      <button class="admin-action-btn" onclick="adminAction('cleanup')">🧹 清理临时文件</button>
+      <button class="admin-action-btn" onclick="adminAction('crawl')">
+        🔄 抓取今天
+      </button>
+      <button class="admin-action-btn" onclick="adminAction('summarize')">
+        📝 批量总结
+      </button>
+      <button class="admin-action-btn" onclick="adminAction('cleanup')">
+        🧹 清理临时文件
+      </button>
     </div>
   </div>
 </div>
 
 <style>
   /* ── Admin Logs ────────────────────────────────────────────────── */
-  .admin-logs-page { max-width: 100%; }
+  .admin-logs-page {
+    max-width: 100%;
+  }
 
   .admin-tabs {
     display: flex;
@@ -144,22 +167,32 @@
     cursor: pointer;
     border-bottom: 2px solid transparent;
     margin-bottom: -2px;
-    transition: color 0.2s, border-color 0.2s;
+    transition:
+      color 0.2s,
+      border-color 0.2s;
     font-family: var(--font-sans);
   }
 
-  .admin-tab:hover { color: var(--accent); }
+  .admin-tab:hover {
+    color: var(--accent);
+  }
 
   .admin-tab.active {
     color: var(--accent);
     border-bottom-color: var(--accent);
   }
 
-  .admin-tab-content { display: none; }
-  .admin-tab-content.active { display: block; }
+  .admin-tab-content {
+    display: none;
+  }
+  .admin-tab-content.active {
+    display: block;
+  }
 
   /* ── Table ─────────────────────────────────────────────────────── */
-  .admin-table-wrap { overflow-x: auto; }
+  .admin-table-wrap {
+    overflow-x: auto;
+  }
 
   .admin-table {
     width: 100%;
@@ -187,14 +220,29 @@
     vertical-align: middle;
   }
 
-  .admin-table tbody tr:hover { background: var(--bg); }
-  .admin-table tbody tr:last-child td { border-bottom: none; }
+  .admin-table tbody tr:hover {
+    background: var(--bg);
+  }
+  .admin-table tbody tr:last-child td {
+    border-bottom: none;
+  }
 
-  .time-cell { white-space: nowrap; color: var(--ink-light); }
-  .error-cell { max-width: 200px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: #c62828; font-size: 0.8rem; }
+  .time-cell {
+    white-space: nowrap;
+    color: var(--ink-light);
+  }
+  .error-cell {
+    max-width: 200px;
+    overflow: hidden;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+    color: #c62828;
+    font-size: 0.8rem;
+  }
 
   /* ── Badges ────────────────────────────────────────────────────── */
-  .task-badge, .status-badge {
+  .task-badge,
+  .status-badge {
     display: inline-block;
     padding: 2px 8px;
     border-radius: 3px;
@@ -202,15 +250,39 @@
     font-weight: 500;
   }
 
-  .task-crawl { background: #e3f2fd; color: #1565c0; }
-  .task-summarize { background: #f3e5f5; color: #7b1fa2; }
-  .task-cleanup { background: #e8f5e9; color: #2e7d32; }
-  .task-delete { background: #fce4ec; color: #c62828; }
-  .task-scheduler { background: #fff3e0; color: #e65100; }
+  .task-crawl {
+    background: #e3f2fd;
+    color: #1565c0;
+  }
+  .task-summarize {
+    background: #f3e5f5;
+    color: #7b1fa2;
+  }
+  .task-cleanup {
+    background: #e8f5e9;
+    color: #2e7d32;
+  }
+  .task-delete {
+    background: #fce4ec;
+    color: #c62828;
+  }
+  .task-scheduler {
+    background: #fff3e0;
+    color: #e65100;
+  }
 
-  .status-success { background: #e8f5e9; color: #388e3c; }
-  .status-running { background: #e3f2fd; color: #1976d2; }
-  .status-failed { background: #fce4ec; color: #c62828; }
+  .status-success {
+    background: #e8f5e9;
+    color: #388e3c;
+  }
+  .status-running {
+    background: #e3f2fd;
+    color: #1976d2;
+  }
+  .status-failed {
+    background: #fce4ec;
+    color: #c62828;
+  }
 
   /* ── Admin Actions ─────────────────────────────────────────────── */
   .admin-actions {
@@ -254,46 +326,58 @@
 
   /* ── Responsive ────────────────────────────────────────────────── */
   @media (max-width: 640px) {
-    .admin-table { font-size: 0.8rem; }
-    .admin-table th, .admin-table td { padding: 6px 8px; }
-    .admin-action-buttons { flex-direction: column; }
-    .admin-action-btn { width: 100%; text-align: center; }
+    .admin-table {
+      font-size: 0.8rem;
+    }
+    .admin-table th,
+    .admin-table td {
+      padding: 6px 8px;
+    }
+    .admin-action-buttons {
+      flex-direction: column;
+    }
+    .admin-action-btn {
+      width: 100%;
+      text-align: center;
+    }
   }
 </style>
-{% endblock %}
-
-{% block scripts %}
+{% endblock %} {% block scripts %}
 <script>
-function adminAction(action) {
-  const token = prompt('请输入 Admin Token:');
-  if (!token) return;
+  function adminAction(action) {
+    const token = prompt("请输入 Admin Token:");
+    if (!token) return;
 
-  const url = '/admin/' + action;
-  fetch(url, {
-    method: 'POST',
-    headers: {
-      'Authorization': 'Bearer ' + token,
-      'Content-Type': 'application/json',
-    },
-  })
-  .then(r => r.json())
-  .then(data => {
-    alert(JSON.stringify(data, null, 2));
-    location.reload();
-  })
-  .catch(err => {
-    alert('请求失败: ' + err.message);
-  });
-}
+    const url = "/admin/" + action;
+    fetch(url, {
+      method: "POST",
+      headers: {
+        Authorization: "Bearer " + token,
+        "Content-Type": "application/json",
+      },
+    })
+      .then((r) => r.json())
+      .then((data) => {
+        alert(JSON.stringify(data, null, 2));
+        location.reload();
+      })
+      .catch((err) => {
+        alert("请求失败: " + err.message);
+      });
+  }
 
-// Tab 切换
-document.querySelectorAll('.admin-tab').forEach(tab => {
-  tab.addEventListener('click', () => {
-    document.querySelectorAll('.admin-tab').forEach(t => t.classList.remove('active'));
-    document.querySelectorAll('.admin-tab-content').forEach(c => c.classList.remove('active'));
-    tab.classList.add('active');
-    document.getElementById(tab.dataset.tab).classList.add('active');
+  // Tab 切换
+  document.querySelectorAll(".admin-tab").forEach((tab) => {
+    tab.addEventListener("click", () => {
+      document
+        .querySelectorAll(".admin-tab")
+        .forEach((t) => t.classList.remove("active"));
+      document
+        .querySelectorAll(".admin-tab-content")
+        .forEach((c) => c.classList.remove("active"));
+      tab.classList.add("active");
+      document.getElementById(tab.dataset.tab).classList.add("active");
+    });
   });
-});
 </script>
 {% endblock %}
diff --git a/app/templates/base.html b/app/templates/base.html
index 6e272f9..aab7fe7 100644
--- a/app/templates/base.html
+++ b/app/templates/base.html
@@ -1,38 +1,44 @@
-<!DOCTYPE html>
+<!doctype html>
 <html lang="zh-CN">
-<head>
-  <meta charset="UTF-8">
-  <meta name="viewport" content="width=device-width, initial-scale=1.0">
-  <title>{% block title %}HF Daily Papers{% endblock %}</title>
-  <link rel="stylesheet" href="/static/css/style.css">
-</head>
-<body>
-  <header class="site-header">
-    <nav class="nav-bar">
-      <a href="/" class="nav-brand">📚 HF Daily Papers</a>
-      <form class="nav-search" action="/search" method="get">
-        <input type="text" name="q" placeholder="搜索..." class="nav-search-input">
-      </form>
-      <div class="nav-links">
-        <a href="/day/{{ today if today else '' }}">今日</a>
-        <a href="/search">搜索</a>
-        <a href="/trends">趋势</a>
-        <a href="/reading-list">阅读列表</a>
-        <a href="/admin/logs">管理</a>
-      </div>
-    </nav>
-  </header>
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>{% block title %}HF Daily Papers{% endblock %}</title>
+    <link rel="stylesheet" href="/static/css/style.css" />
+  </head>
+  <body>
+    <header class="site-header">
+      <nav class="nav-bar">
+        <a href="/" class="nav-brand">📚 HF Daily Papers</a>
+        <form class="nav-search" action="/search" method="get">
+          <input
+            type="text"
+            name="q"
+            placeholder="搜索..."
+            class="nav-search-input"
+          />
+        </form>
+        <div class="nav-links">
+          <a href="/day/{{ today if today else '' }}">今日</a>
+          <a href="/search">搜索</a>
+          <a href="/trends">趋势</a>
+          <a href="/reading-list">阅读列表</a>
+          <a href="/admin/logs">管理</a>
+        </div>
+      </nav>
+    </header>
 
-  <main class="container">
-    {% block content %}{% endblock %}
-  </main>
+    <main class="container">{% block content %}{% endblock %}</main>
 
-  <footer class="site-footer">
-    <p>HF Daily Papers — 中文论文导览站 · 数据来源于 <a href="https://huggingface.co/papers" target="_blank">HuggingFace</a></p>
-  </footer>
+    <footer class="site-footer">
+      <p>
+        HF Daily Papers — 中文论文导览站 · 数据来源于
+        <a href="https://huggingface.co/papers" target="_blank">HuggingFace</a>
+      </p>
+    </footer>
 
-  <script src="https://unpkg.com/htmx.org@2.0.4"></script>
-  <script src="/static/js/app.js"></script>
-  {% block scripts %}{% endblock %}
-</body>
+    <script src="https://unpkg.com/htmx.org@2.0.4"></script>
+    <script src="/static/js/app.js"></script>
+    {% block scripts %}{% endblock %}
+  </body>
 </html>
diff --git a/app/templates/compare.html b/app/templates/compare.html
index c59a934..0d9f6d0 100644
--- a/app/templates/compare.html
+++ b/app/templates/compare.html
@@ -1,16 +1,17 @@
-{% extends "base.html" %}
-
-{% block title %}{{ page_title }} — HF Daily Papers{% endblock %}
-
-{% block content %}
+{% extends "base.html" %} {% block title %}{{ page_title }} — HF Daily Papers{%
+endblock %} {% block content %}
 <section class="compare-page">
   <h1>论文对比</h1>
 
   {# ID 输入表单 #}
   <form class="search-form" method="get" action="/compare">
-    <input type="text" name="ids" value="{{ ids_param }}"
-           placeholder="输入 arXiv ID，逗号分隔（最多 5 篇），如 2401.12345,2401.67890"
-           class="search-input">
+    <input
+      type="text"
+      name="ids"
+      value="{{ ids_param }}"
+      placeholder="输入 arXiv ID，逗号分隔（最多 5 篇），如 2401.12345,2401.67890"
+      class="search-input"
+    />
     <button type="submit" class="search-btn">对比</button>
   </form>
 
@@ -18,9 +19,7 @@
   <div class="empty-state">
     <p>{{ error }}</p>
   </div>
-  {% endif %}
-
-  {% if papers %}
+  {% endif %} {% if papers %}
   <div class="compare-table-wrapper">
     <table class="compare-table">
       <thead>
@@ -29,8 +28,8 @@
           {% for paper in papers %}
           <th>
             <a href="/paper/{{ paper.arxiv_id }}">{{ paper.arxiv_id }}</a>
-            <br>
-            <small style="color: var(--ink-light);">
+            <br />
+            <small style="color: var(--ink-light)">
               {{ paper.upvotes }} 👍 · {{ paper.paper_date }}
             </small>
           </th>
@@ -42,7 +41,9 @@
         <tr>
           <td class="field-label">作者</td>
           {% for paper in papers %}
-          <td class="paper-col">{{ paper.authors|map(attribute='name')|join(', ') }}</td>
+          <td class="paper-col">
+            {{ paper.authors|map(attribute='name')|join(', ') }}
+          </td>
           {% endfor %}
         </tr>
 
@@ -58,16 +59,13 @@
           {% endfor %}
         </tr>
 
-        {# 结构化对比字段 #}
-        {% for row in rows %}
+        {# 结构化对比字段 #} {% for row in rows %}
         <tr>
           <td class="field-label">{{ row.label }}</td>
           {% for cell in row.cells %}
           <td class="paper-col">
-            {% if cell %}
-              {{ cell }}
-            {% else %}
-              <span class="no-summary">暂无总结</span>
+            {% if cell %} {{ cell }} {% else %}
+            <span class="no-summary">暂无总结</span>
             {% endif %}
           </td>
           {% endfor %}
diff --git a/app/templates/detail.html b/app/templates/detail.html
index 3979d6d..255ae99 100644
--- a/app/templates/detail.html
+++ b/app/templates/detail.html
@@ -1,140 +1,141 @@
-{% extends "base.html" %}
-
-{% block title %}{{ page_title }} — HF Daily Papers{% endblock %}
-
-{% block content %}
+{% extends "base.html" %} {% block title %}{{ page_title }} — HF Daily Papers{%
+endblock %} {% block content %}
 <article class="paper-detail">
-  <a href="/day/{{ paper.paper_date.isoformat() }}" class="back-link">← 返回 {{ paper.paper_date.isoformat() }}</a>
+  <a href="/day/{{ paper.paper_date.isoformat() }}" class="back-link"
+    >← 返回 {{ paper.paper_date.isoformat() }}</a
+  >
 
   {# 标题 #}
   <h1 class="detail-title">
-    {{ paper.title_zh or paper.title_en }}
-    {% if paper.title_zh and paper.title_en != paper.title_zh %}
+    {{ paper.title_zh or paper.title_en }} {% if paper.title_zh and
+    paper.title_en != paper.title_zh %}
     <small class="title-en">{{ paper.title_en }}</small>
     {% endif %}
   </h1>
 
   {# 元信息 #}
   <div class="detail-meta">
-    <span class="detail-authors">{{ paper.authors|map(attribute='name')|join(', ') }}</span>
-    <span class="detail-date">📅 {{ paper.published_at or paper.paper_date }}</span>
+    <span class="detail-authors"
+      >{{ paper.authors|map(attribute='name')|join(', ') }}</span
+    >
+    <span class="detail-date"
+      >📅 {{ paper.published_at or paper.paper_date }}</span
+    >
     <span class="detail-upvotes">👍 {{ paper.upvotes }}</span>
   </div>
 
-  {# 标签 #}
-  {% if paper.tags %}
+  {# 标签 #} {% if paper.tags %}
   <div class="detail-tags">
     {% for tag in paper.tags %}
     <span class="tag">{{ tag.tag }}</span>
     {% endfor %}
   </div>
-  {% endif %}
-
-  {# 链接 #}
+  {% endif %} {# 链接 #}
   <div class="detail-links">
-    {% if paper.arxiv_url %}<a href="{{ paper.arxiv_url }}" target="_blank" class="ext-link">arXiv</a>{% endif %}
-    {% if paper.hf_url %}<a href="{{ paper.hf_url }}" target="_blank" class="ext-link">HuggingFace</a>{% endif %}
-    {% if paper.pdf_url %}<a href="{{ paper.pdf_url }}" target="_blank" class="ext-link">PDF</a>{% endif %}
+    {% if paper.arxiv_url %}<a
+      href="{{ paper.arxiv_url }}"
+      target="_blank"
+      class="ext-link"
+      >arXiv</a
+    >{% endif %} {% if paper.hf_url %}<a
+      href="{{ paper.hf_url }}"
+      target="_blank"
+      class="ext-link"
+      >HuggingFace</a
+    >{% endif %} {% if paper.pdf_url %}<a
+      href="{{ paper.pdf_url }}"
+      target="_blank"
+      class="ext-link"
+      >PDF</a
+    >{% endif %}
   </div>
 
-  {# 总结内容 — 按状态降级 #}
-  {% if summary_state == 'done' and paper.summary %}
-    {% if paper.summary_status and paper.summary_status.quality == 'low' %}
-    <div class="quality-warning">⚠️ AI 总结质量较低，仅供参考</div>
-    {% elif paper.summary_status and paper.summary_status.quality == 'degraded' %}
-    <div class="quality-warning">📝 总结部分字段不完整</div>
-    {% endif %}
-
-    {% if paper.summary.one_line %}
-    <section class="summary-section">
-      <h2>一句话摘要</h2>
-      <p class="one-line">{{ paper.summary.one_line }}</p>
-    </section>
-    {% endif %}
-
-    {% if paper.summary.difficulty %}
-    <section class="summary-section">
-      <h2>难度</h2>
-      <p>{{ paper.summary.difficulty }}</p>
-    </section>
-    {% endif %}
-
+  {# 总结内容 — 按状态降级 #} {% if summary_state == 'done' and paper.summary %}
+  {% if paper.summary_status and paper.summary_status.quality == 'low' %}
+  <div class="quality-warning">⚠️ AI 总结质量较低，仅供参考</div>
+  {% elif paper.summary_status and paper.summary_status.quality == 'degraded' %}
+  <div class="quality-warning">📝 总结部分字段不完整</div>
+  {% endif %} {% if paper.summary.one_line %}
+  <section class="summary-section">
+    <h2>一句话摘要</h2>
+    <p class="one-line">{{ paper.summary.one_line }}</p>
+  </section>
+  {% endif %} {% if paper.summary.difficulty %}
+  <section class="summary-section">
+    <h2>难度</h2>
+    <p>{{ paper.summary.difficulty }}</p>
+  </section>
+  {% endif %} {% if paper.summary.motivation_problem %}
+  <section class="summary-section">
+    <h2>研究动机</h2>
     {% if paper.summary.motivation_problem %}
-    <section class="summary-section">
-      <h2>研究动机</h2>
-      {% if paper.summary.motivation_problem %}<p><strong>问题：</strong>{{ paper.summary.motivation_problem }}</p>{% endif %}
-      {% if paper.summary.motivation_goal %}<p><strong>目标：</strong>{{ paper.summary.motivation_goal }}</p>{% endif %}
-      {% if paper.summary.motivation_gap %}<p><strong>差距：</strong>{{ paper.summary.motivation_gap }}</p>{% endif %}
-    </section>
+    <p><strong>问题：</strong>{{ paper.summary.motivation_problem }}</p>
+    {% endif %} {% if paper.summary.motivation_goal %}
+    <p><strong>目标：</strong>{{ paper.summary.motivation_goal }}</p>
+    {% endif %} {% if paper.summary.motivation_gap %}
+    <p><strong>差距：</strong>{{ paper.summary.motivation_gap }}</p>
     {% endif %}
-
-    {% if paper.summary.method_key_idea %}
-    <section class="summary-section">
-      <h2>核心方法</h2>
-      {% if paper.summary.method_overview %}<p>{{ paper.summary.method_overview }}</p>{% endif %}
-      <p><strong>关键思路：</strong>{{ paper.summary.method_key_idea }}</p>
-      {% if paper.summary.method_novelty %}<p><strong>新颖性：</strong>{{ paper.summary.method_novelty }}</p>{% endif %}
-    </section>
+  </section>
+  {% endif %} {% if paper.summary.method_key_idea %}
+  <section class="summary-section">
+    <h2>核心方法</h2>
+    {% if paper.summary.method_overview %}
+    <p>{{ paper.summary.method_overview }}</p>
     {% endif %}
-
-    {% if paper.summary.results_main_json %}
-    <section class="summary-section">
-      <h2>实验结果</h2>
-      <p>{{ paper.summary.results_main_json }}</p>
-    </section>
+    <p><strong>关键思路：</strong>{{ paper.summary.method_key_idea }}</p>
+    {% if paper.summary.method_novelty %}
+    <p><strong>新颖性：</strong>{{ paper.summary.method_novelty }}</p>
     {% endif %}
-
-    {% if paper.summary.limitations_json %}
-    <section class="summary-section">
-      <h2>局限与改进</h2>
-      <p>{{ paper.summary.limitations_json }}</p>
-    </section>
-    {% endif %}
-
-  {% elif summary_state == 'processing' %}
-    <div class="summary-placeholder processing">
-      <p>🔄 正在生成 AI 总结，请稍后刷新页面</p>
-    </div>
+  </section>
+  {% endif %} {% if paper.summary.results_main_json %}
+  <section class="summary-section">
+    <h2>实验结果</h2>
+    <p>{{ paper.summary.results_main_json }}</p>
+  </section>
+  {% endif %} {% if paper.summary.limitations_json %}
+  <section class="summary-section">
+    <h2>局限与改进</h2>
+    <p>{{ paper.summary.limitations_json }}</p>
+  </section>
+  {% endif %} {% elif summary_state == 'processing' %}
+  <div class="summary-placeholder processing">
+    <p>🔄 正在生成 AI 总结，请稍后刷新页面</p>
+  </div>
 
   {% elif summary_state in ('failed', 'permanent_failure') %}
-    <div class="summary-placeholder failed">
-      <p>❌ 总结生成失败{% if paper.summary_status and paper.summary_status.error_type %}（{{ paper.summary_status.error_type }}）{% endif %}</p>
-      {% if paper.summary_status and paper.summary_status.error %}
-      <p class="error-detail">{{ paper.summary_status.error }}</p>
-      {% endif %}
-    </div>
+  <div class="summary-placeholder failed">
+    <p>
+      ❌ 总结生成失败{% if paper.summary_status and
+      paper.summary_status.error_type %}（{{ paper.summary_status.error_type
+      }}）{% endif %}
+    </p>
+    {% if paper.summary_status and paper.summary_status.error %}
+    <p class="error-detail">{{ paper.summary_status.error }}</p>
+    {% endif %}
+  </div>
 
   {% else %}
-    <div class="summary-placeholder none">
-      <p>📝 AI 总结尚未生成</p>
-    </div>
-  {% endif %}
-
-  {# 英文摘要 — 始终显示 #}
-  {% if paper.abstract %}
+  <div class="summary-placeholder none">
+    <p>📝 AI 总结尚未生成</p>
+  </div>
+  {% endif %} {# 英文摘要 — 始终显示 #} {% if paper.abstract %}
   <section class="summary-section abstract-section">
     <h2>Abstract</h2>
     <p class="abstract-en">{{ paper.abstract }}</p>
   </section>
-  {% endif %}
-
-  {# Phase 5: 图片画廊 #}
-  {% if paper_images %}
+  {% endif %} {# Phase 5: 图片画廊 #} {% if paper_images %}
   <section class="image-gallery">
     <h2>论文图片</h2>
     <div class="gallery-grid">
       {% for img in paper_images %}
       <div class="gallery-item">
-        <img src="{{ img.url }}" alt="{{ img.name }}" loading="lazy">
+        <img src="{{ img.url }}" alt="{{ img.name }}" loading="lazy" />
         <div class="gallery-caption">{{ img.name }}</div>
       </div>
       {% endfor %}
     </div>
   </section>
-  {% endif %}
-
-  {# Phase 5: 相似论文推荐 #}
-  {% if similar_papers %}
+  {% endif %} {# Phase 5: 相似论文推荐 #} {% if similar_papers %}
   <section class="similar-papers">
     <h2>相似论文推荐</h2>
     {% for sp in similar_papers %}
@@ -142,7 +143,9 @@
       <span class="similar-paper-title">
         <a href="/paper/{{ sp.arxiv_id }}">{{ sp.title_zh }}</a>
       </span>
-      <span class="similar-paper-dist">🎯 {{ "%.3f"|format(sp.distance) }}</span>
+      <span class="similar-paper-dist"
+        >🎯 {{ "%.3f"|format(sp.distance) }}</span
+      >
     </div>
     {% endfor %}
   </section>
diff --git a/app/templates/index.html b/app/templates/index.html
index f659ed1..58089d0 100644
--- a/app/templates/index.html
+++ b/app/templates/index.html
@@ -1,8 +1,5 @@
-{% extends "base.html" %}
-
-{% block title %}{{ page_title }} — HF Daily Papers{% endblock %}
-
-{% block content %}
+{% extends "base.html" %} {% block title %}{{ page_title }} — HF Daily Papers{%
+endblock %} {% block content %}
 <div class="date-nav">
   {% if prev_day %}
   <a href="/day/{{ prev_day }}" class="date-nav-btn">← 前一天</a>
@@ -16,9 +13,8 @@
 
 {% if papers %}
 <div class="paper-list">
-  {% for paper in papers %}
-  {% include "partials/paper_card.html" %}
-  {% endfor %}
+  {% for paper in papers %} {% include "partials/paper_card.html" %} {% endfor
+  %}
 </div>
 {% else %}
 <div class="empty-state">
@@ -30,7 +26,11 @@
 <div class="date-quick-nav">
   <span>有数据的日期：</span>
   {% for d in available_dates[:10] %}
-  <a href="/day/{{ d }}" class="date-chip {% if d == current_date %}active{% endif %}">{{ d }}</a>
+  <a
+    href="/day/{{ d }}"
+    class="date-chip {% if d == current_date %}active{% endif %}"
+    >{{ d }}</a
+  >
   {% endfor %}
 </div>
 {% endblock %}
diff --git a/app/templates/partials/paper_card.html b/app/templates/partials/paper_card.html
index 79cb8aa..08c53f1 100644
--- a/app/templates/partials/paper_card.html
+++ b/app/templates/partials/paper_card.html
@@ -12,7 +12,9 @@
   {% if paper.summary and paper.summary.one_line %}
   <p class="paper-one-line">{{ paper.summary.one_line }}</p>
   {% elif paper.abstract %}
-  <p class="paper-abstract-preview">{{ paper.abstract[:200] }}{% if paper.abstract|length > 200 %}…{% endif %}</p>
+  <p class="paper-abstract-preview">
+    {{ paper.abstract[:200] }}{% if paper.abstract|length > 200 %}…{% endif %}
+  </p>
   {% endif %}
 
   <div class="paper-meta">
@@ -29,32 +31,31 @@
 
   <div class="paper-footer">
     <div class="paper-footer-left">
-      <span class="summary-badge summary-{{ paper.summary_status.status if paper.summary_status else 'none' }}">
-        {% if not paper.summary_status or paper.summary_status.status == 'pending' %}
-          未总结
-        {% elif paper.summary_status.status == 'processing' %}
-          🔄 总结中
-        {% elif paper.summary_status.status == 'failed' or paper.summary_status.status == 'permanent_failure' %}
-          ❌ 总结失败
-        {% elif paper.summary_status.status == 'done' %}
-          ✅ 已总结
-        {% endif %}
+      <span
+        class="summary-badge summary-{{ paper.summary_status.status if paper.summary_status else 'none' }}"
+      >
+        {% if not paper.summary_status or paper.summary_status.status ==
+        'pending' %} 未总结 {% elif paper.summary_status.status == 'processing'
+        %} 🔄 总结中 {% elif paper.summary_status.status == 'failed' or
+        paper.summary_status.status == 'permanent_failure' %} ❌ 总结失败 {%
+        elif paper.summary_status.status == 'done' %} ✅ 已总结 {% endif %}
       </span>
       {% if paper.reading_status %}
       <span class="reading-badge reading-{{ paper.reading_status.status }}">
-        {% if paper.reading_status.status == 'unread' %}未读
-        {% elif paper.reading_status.status == 'skimmed' %}已浏览
-        {% elif paper.reading_status.status == 'read_summary' %}已读摘要
-        {% elif paper.reading_status.status == 'read_full' %}已读原文
-        {% endif %}
+        {% if paper.reading_status.status == 'unread' %}未读 {% elif
+        paper.reading_status.status == 'skimmed' %}已浏览 {% elif
+        paper.reading_status.status == 'read_summary' %}已读摘要 {% elif
+        paper.reading_status.status == 'read_full' %}已读原文 {% endif %}
       </span>
       {% endif %}
     </div>
     <div class="paper-footer-right">
-      <button class="btn-bookmark {% if paper.bookmark %}active{% endif %}"
-              hx-post="/api/bookmark/{{ paper.arxiv_id }}"
-              hx-target="#user-data-{{ paper.arxiv_id }}"
-              hx-swap="outerHTML">
+      <button
+        class="btn-bookmark {% if paper.bookmark %}active{% endif %}"
+        hx-post="/api/bookmark/{{ paper.arxiv_id }}"
+        hx-target="#user-data-{{ paper.arxiv_id }}"
+        hx-swap="outerHTML"
+      >
         {% if paper.bookmark %}★{% else %}☆{% endif %}
       </button>
       <a href="/paper/{{ paper.arxiv_id }}" class="btn-detail">详情 →</a>
diff --git a/app/templates/reading_list.html b/app/templates/reading_list.html
index a93c15f..d3a5e39 100644
--- a/app/templates/reading_list.html
+++ b/app/templates/reading_list.html
@@ -1,45 +1,62 @@
-{% extends "base.html" %}
-
-{% block title %}{{ page_title }} — HF Daily Papers{% endblock %}
-
-{% block content %}
+{% extends "base.html" %} {% block title %}{{ page_title }} — HF Daily Papers{%
+endblock %} {% block content %}
 <section class="reading-list-page">
   <h1 class="page-heading">📖 阅读列表</h1>
 
   {# 筛选标签栏 #}
   <div class="reading-list-filters">
-    <a href="/reading-list"
-       class="filter-chip {% if current_filter == 'all' %}active{% endif %}">全部收藏</a>
-    <a href="/reading-list?filter=unread"
-       class="filter-chip {% if current_filter == 'unread' %}active{% endif %}">未读</a>
-    <a href="/reading-list?filter=skimmed"
-       class="filter-chip {% if current_filter == 'skimmed' %}active{% endif %}">已浏览</a>
-    <a href="/reading-list?filter=read_summary"
-       class="filter-chip {% if current_filter == 'read_summary' %}active{% endif %}">已读摘要</a>
-    <a href="/reading-list?filter=read_full"
-       class="filter-chip {% if current_filter == 'read_full' %}active{% endif %}">已读原文</a>
-    <a href="/reading-list?filter=has_note"
-       class="filter-chip {% if current_filter == 'has_note' %}active{% endif %}">有笔记</a>
+    <a
+      href="/reading-list"
+      class="filter-chip {% if current_filter == 'all' %}active{% endif %}"
+      >全部收藏</a
+    >
+    <a
+      href="/reading-list?filter=unread"
+      class="filter-chip {% if current_filter == 'unread' %}active{% endif %}"
+      >未读</a
+    >
+    <a
+      href="/reading-list?filter=skimmed"
+      class="filter-chip {% if current_filter == 'skimmed' %}active{% endif %}"
+      >已浏览</a
+    >
+    <a
+      href="/reading-list?filter=read_summary"
+      class="filter-chip {% if current_filter == 'read_summary' %}active{% endif %}"
+      >已读摘要</a
+    >
+    <a
+      href="/reading-list?filter=read_full"
+      class="filter-chip {% if current_filter == 'read_full' %}active{% endif %}"
+      >已读原文</a
+    >
+    <a
+      href="/reading-list?filter=has_note"
+      class="filter-chip {% if current_filter == 'has_note' %}active{% endif %}"
+      >有笔记</a
+    >
   </div>
 
-  {# 标签筛选 #}
-  {% if all_tags %}
+  {# 标签筛选 #} {% if all_tags %}
   <div class="tag-filter">
     <span class="tag-filter-label">标签：</span>
-    <a href="/reading-list?filter={{ current_filter }}"
-       class="tag-chip {% if not current_tag %}active{% endif %}">全部</a>
+    <a
+      href="/reading-list?filter={{ current_filter }}"
+      class="tag-chip {% if not current_tag %}active{% endif %}"
+      >全部</a
+    >
     {% for t in all_tags %}
-    <a href="/reading-list?filter={{ current_filter }}&tag={{ t }}"
-       class="tag-chip {% if t == current_tag %}active{% endif %}">{{ t }}</a>
+    <a
+      href="/reading-list?filter={{ current_filter }}&tag={{ t }}"
+      class="tag-chip {% if t == current_tag %}active{% endif %}"
+      >{{ t }}</a
+    >
     {% endfor %}
   </div>
-  {% endif %}
-
-  {% if papers %}
+  {% endif %} {% if papers %}
   <div class="paper-list">
-    {% for paper in papers %}
-    {% include "partials/paper_card.html" %}
-    {% endfor %}
+    {% for paper in papers %} {% include "partials/paper_card.html" %} {% endfor
+    %}
   </div>
   {% else %}
   <div class="empty-state">
diff --git a/app/templates/search.html b/app/templates/search.html
index 4a4950a..e757cf3 100644
--- a/app/templates/search.html
+++ b/app/templates/search.html
@@ -1,26 +1,53 @@
-{% extends "base.html" %}
-
-{% block title %}{{ page_title }} — HF Daily Papers{% endblock %}
-
-{% block content %}
+{% extends "base.html" %} {% block title %}{{ page_title }} — HF Daily Papers{%
+endblock %} {% block content %}
 <section class="search-page">
   {# 搜索表单 #}
   <form class="search-form" method="get" action="/search">
-    <input type="text" name="q" value="{{ query }}" placeholder="搜索标题、摘要、作者、标签..."
-           class="search-input" autofocus>
+    <input
+      type="text"
+      name="q"
+      value="{{ query }}"
+      placeholder="搜索标题、摘要、作者、标签..."
+      class="search-input"
+      autofocus
+    />
     {% if tag %}
-    <input type="hidden" name="tag" value="{{ tag }}">
-    {% endif %}
-
-    {# 模式切换 #}
-    {% if chroma_enabled %}
+    <input type="hidden" name="tag" value="{{ tag }}" />
+    {% endif %} {# 模式切换 #} {% if chroma_enabled %}
     <div class="search-mode-toggle">
-      <label class="mode-option {% if mode == 'keyword' or not mode %}active{% endif %}">
-        <input type="radio" name="mode" value="keyword" {% if mode == 'keyword' or not mode %}checked{% endif %}>
+      <label
+        class="mode-option {% if mode == 'keyword' or not mode %}active{% endif %}"
+      >
+        <input
+          type="radio"
+          name="mode"
+          value="keyword"
+          {%
+          if
+          mode=""
+          ="keyword"
+          or
+          not
+          mode
+          %}checked{%
+          endif
+          %}
+        />
         关键词
       </label>
       <label class="mode-option {% if mode == 'semantic' %}active{% endif %}">
-        <input type="radio" name="mode" value="semantic" {% if mode == 'semantic' %}checked{% endif %}>
+        <input
+          type="radio"
+          name="mode"
+          value="semantic"
+          {%
+          if
+          mode=""
+          ="semantic"
+          %}checked{%
+          endif
+          %}
+        />
         语义搜索
       </label>
     </div>
@@ -29,29 +56,40 @@
     <button type="submit" class="search-btn">搜索</button>
   </form>
 
-  {# 标签筛选 #}
-  {% if all_tags %}
+  {# 标签筛选 #} {% if all_tags %}
   <div class="tag-filter">
     <span class="tag-filter-label">标签：</span>
-    <a href="/search?q={{ query }}&mode={{ mode }}{% if tag %}&tag={{ tag }}{% endif %}"
-       class="tag-chip {% if not tag %}active{% endif %}">全部</a>
+    <a
+      href="/search?q={{ query }}&mode={{ mode }}{% if tag %}&tag={{ tag }}{% endif %}"
+      class="tag-chip {% if not tag %}active{% endif %}"
+      >全部</a
+    >
     {% for t in all_tags %}
-    <a href="/search?q={{ query }}&tag={{ t }}&mode={{ mode }}"
-       class="tag-chip {% if t == tag %}active{% endif %}">{{ t }}</a>
+    <a
+      href="/search?q={{ query }}&tag={{ t }}&mode={{ mode }}"
+      class="tag-chip {% if t == tag %}active{% endif %}"
+      >{{ t }}</a
+    >
     {% endfor %}
   </div>
-  {% endif %}
-
-  {% if query or tag %}
-  {# 搜索结果元信息 #}
+  {% endif %} {% if query or tag %} {# 搜索结果元信息 #}
   <div class="search-meta">
-    <span>找到 {{ total }} 条结果{% if mode == 'semantic' %}（语义模式）{% endif %}</span>
+    <span
+      >找到 {{ total }} 条结果{% if mode == 'semantic' %}（语义模式）{% endif
+      %}</span
+    >
     <div class="sort-toggle">
-      <a href="/search?q={{ query }}&tag={{ tag }}&mode={{ mode }}&sort=relevance"
-         class="{% if sort == 'relevance' %}active{% endif %}">相关性</a>
+      <a
+        href="/search?q={{ query }}&tag={{ tag }}&mode={{ mode }}&sort=relevance"
+        class="{% if sort == 'relevance' %}active{% endif %}"
+        >相关性</a
+      >
       <span class="sort-divider">|</span>
-      <a href="/search?q={{ query }}&tag={{ tag }}&mode={{ mode }}&sort=date"
-         class="{% if sort == 'date' %}active{% endif %}">日期</a>
+      <a
+        href="/search?q={{ query }}&tag={{ tag }}&mode={{ mode }}&sort=date"
+        class="{% if sort == 'date' %}active{% endif %}"
+        >日期</a
+      >
     </div>
   </div>
 
@@ -62,14 +100,10 @@
       <div class="paper-card-header">
         <h2 class="paper-title">
           <a href="/paper/{{ paper.arxiv_id }}">
-            {% set snippet = snippets.get(paper.id, {}) %}
-            {% if snippet and snippet.title_zh %}
-              {{ snippet.title_zh | safe }}
-            {% elif paper.title_zh %}
-              {{ paper.title_zh }}
-            {% else %}
-              {{ paper.title_en }}
-            {% endif %}
+            {% set snippet = snippets.get(paper.id, {}) %} {% if snippet and
+            snippet.title_zh %} {{ snippet.title_zh | safe }} {% elif
+            paper.title_zh %} {{ paper.title_zh }} {% else %} {{ paper.title_en
+            }} {% endif %}
           </a>
         </h2>
         <span class="paper-upvotes">👍 {{ paper.upvotes }}</span>
@@ -85,7 +119,10 @@
       {% elif paper.summary and paper.summary.one_line %}
       <p class="paper-one-line">{{ paper.summary.one_line }}</p>
       {% elif paper.abstract %}
-      <p class="paper-abstract-preview">{{ paper.abstract[:200] }}{% if paper.abstract|length > 200 %}…{% endif %}</p>
+      <p class="paper-abstract-preview">
+        {{ paper.abstract[:200] }}{% if paper.abstract|length > 200 %}…{% endif
+        %}
+      </p>
       {% endif %}
 
       <div class="paper-meta">
@@ -102,16 +139,14 @@
       </div>
 
       <div class="paper-footer">
-        <span class="summary-badge summary-{{ paper.summary_status.status if paper.summary_status else 'none' }}">
-          {% if not paper.summary_status or paper.summary_status.status == 'pending' %}
-            未总结
-          {% elif paper.summary_status.status == 'processing' %}
-            🔄 总结中
-          {% elif paper.summary_status.status in ('failed', 'permanent_failure') %}
-            ❌ 总结失败
-          {% elif paper.summary_status.status == 'done' %}
-            ✅ 已总结
-          {% endif %}
+        <span
+          class="summary-badge summary-{{ paper.summary_status.status if paper.summary_status else 'none' }}"
+        >
+          {% if not paper.summary_status or paper.summary_status.status ==
+          'pending' %} 未总结 {% elif paper.summary_status.status ==
+          'processing' %} 🔄 总结中 {% elif paper.summary_status.status in
+          ('failed', 'permanent_failure') %} ❌ 总结失败 {% elif
+          paper.summary_status.status == 'done' %} ✅ 已总结 {% endif %}
         </span>
         <a href="/paper/{{ paper.arxiv_id }}" class="btn-detail">详情 →</a>
       </div>
@@ -119,25 +154,29 @@
     {% endfor %}
   </div>
 
-  {# 分页 #}
-  {% if total_pages > 1 %}
+  {# 分页 #} {% if total_pages > 1 %}
   <nav class="pagination">
     {% if page > 1 %}
-    <a href="/search?q={{ query }}&tag={{ tag }}&sort={{ sort }}&mode={{ mode }}&page={{ page - 1 }}" class="page-btn">← 上一页</a>
+    <a
+      href="/search?q={{ query }}&tag={{ tag }}&sort={{ sort }}&mode={{ mode }}&page={{ page - 1 }}"
+      class="page-btn"
+      >← 上一页</a
+    >
     {% endif %}
     <span class="page-info">{{ page }} / {{ total_pages }}</span>
     {% if page < total_pages %}
-    <a href="/search?q={{ query }}&tag={{ tag }}&sort={{ sort }}&mode={{ mode }}&page={{ page + 1 }}" class="page-btn">下一页 →</a>
+    <a
+      href="/search?q={{ query }}&tag={{ tag }}&sort={{ sort }}&mode={{ mode }}&page={{ page + 1 }}"
+      class="page-btn"
+      >下一页 →</a
+    >
     {% endif %}
   </nav>
-  {% endif %}
-
-  {% else %}
+  {% endif %} {% else %}
   <div class="empty-state">
     <p>没有找到匹配的论文</p>
     <p class="hint">试试其他关键词或标签</p>
   </div>
-  {% endif %}
-  {% endif %}
+  {% endif %} {% endif %}
 </section>
 {% endblock %}
diff --git a/app/templates/trends.html b/app/templates/trends.html
index c81dc40..4371d71 100644
--- a/app/templates/trends.html
+++ b/app/templates/trends.html
@@ -1,8 +1,5 @@
-{% extends "base.html" %}
-
-{% block title %}{{ page_title }} — HF Daily Papers{% endblock %}
-
-{% block content %}
+{% extends "base.html" %} {% block title %}{{ page_title }} — HF Daily Papers{%
+endblock %} {% block content %}
 <section class="trends-page">
   <h1>趋势看板</h1>
 
@@ -32,154 +29,152 @@
     </div>
   </div>
 </section>
-{% endblock %}
-
-{% block scripts %}
+{% endblock %} {% block scripts %}
 <script src="https://cdn.jsdelivr.net/npm/chart.js@4.4.7/dist/chart.umd.min.js"></script>
 <script>
-// 颜色配置（kami 风格墨蓝色系）
-const COLORS = {
-  primary: '#2d5f8a',
-  primaryLight: 'rgba(45, 95, 138, 0.2)',
-  accent: '#5a9bc7',
-  success: '#388e3c',
-  warning: '#f57f17',
-  danger: '#c62828',
-  muted: '#4a4a6a',
-  palette: [
-    '#2d5f8a', '#5a9bc7', '#388e3c', '#f57f17', '#c62828',
-    '#7b1fa2', '#00838f', '#ef6c00', '#455a64', '#827717',
-    '#1565c0', '#ad1457', '#00695c', '#e65100', '#283593',
-    '#9e9d24', '#6a1b9a', '#00838f', '#4e342e', '#37474f',
-  ],
-};
-
-const statsData = {{ stats | tojson }};
-
-// 每日论文数量折线图
-(function() {
-  const ctx = document.getElementById('dailyChart').getContext('2d');
-  const labels = statsData.daily_counts.map(d => d.date);
-  const data = statsData.daily_counts.map(d => d.count);
-  new Chart(ctx, {
-    type: 'line',
-    data: {
-      labels: labels,
-      datasets: [{
-        label: '论文数',
-        data: data,
-        borderColor: COLORS.primary,
-        backgroundColor: COLORS.primaryLight,
-        fill: true,
-        tension: 0.3,
-        pointRadius: 3,
-        pointHoverRadius: 6,
-      }]
-    },
-    options: {
-      responsive: true,
-      plugins: { legend: { display: false } },
-      scales: {
-        x: { ticks: { maxTicksLimit: 10, font: { size: 11 } } },
-        y: { beginAtZero: true, ticks: { stepSize: 1 } },
-      }
-    }
-  });
-})();
-
-// 热门标签柱状图
-(function() {
-  const ctx = document.getElementById('tagsChart').getContext('2d');
-  const labels = statsData.top_tags.map(d => d.tag);
-  const data = statsData.top_tags.map(d => d.count);
-  new Chart(ctx, {
-    type: 'bar',
-    data: {
-      labels: labels,
-      datasets: [{
-        label: '论文数',
-        data: data,
-        backgroundColor: COLORS.palette.slice(0, data.length),
-        borderRadius: 4,
-      }]
-    },
-    options: {
-      responsive: true,
-      indexAxis: 'y',
-      plugins: { legend: { display: false } },
-      scales: {
-        x: { beginAtZero: true, ticks: { stepSize: 1 } },
-      }
-    }
-  });
-})();
-
-// Upvotes 分布
-(function() {
-  const ctx = document.getElementById('upvotesChart').getContext('2d');
-  const labels = statsData.upvotes_dist.map(d => d.range);
-  const data = statsData.upvotes_dist.map(d => d.count);
-  new Chart(ctx, {
-    type: 'bar',
-    data: {
-      labels: labels,
-      datasets: [{
-        label: '论文数',
-        data: data,
-        backgroundColor: COLORS.accent,
-        borderRadius: 4,
-      }]
-    },
-    options: {
-      responsive: true,
-      plugins: { legend: { display: false } },
-      scales: {
-        y: { beginAtZero: true, ticks: { stepSize: 1 } },
-      }
-    }
-  });
-})();
-
-// 总结完成率环形图
-(function() {
-  const ctx = document.getElementById('summaryChart').getContext('2d');
-  const statusLabels = {
-    'done': '已完成',
-    'pending': '待总结',
-    'processing': '总结中',
-    'failed': '失败',
-    'permanent_failure': '永久失败',
-    'none': '未开始',
+  // 颜色配置（kami 风格墨蓝色系）
+  const COLORS = {
+    primary: '#2d5f8a',
+    primaryLight: 'rgba(45, 95, 138, 0.2)',
+    accent: '#5a9bc7',
+    success: '#388e3c',
+    warning: '#f57f17',
+    danger: '#c62828',
+    muted: '#4a4a6a',
+    palette: [
+      '#2d5f8a', '#5a9bc7', '#388e3c', '#f57f17', '#c62828',
+      '#7b1fa2', '#00838f', '#ef6c00', '#455a64', '#827717',
+      '#1565c0', '#ad1457', '#00695c', '#e65100', '#283593',
+      '#9e9d24', '#6a1b9a', '#00838f', '#4e342e', '#37474f',
+    ],
   };
-  const statusColors = {
-    'done': COLORS.success,
-    'pending': COLORS.warning,
-    'processing': COLORS.primary,
-    'failed': COLORS.danger,
-    'permanent_failure': '#b71c1c',
-    'none': '#bdbdbd',
-  };
-  const labels = statsData.summary_completion.map(d => statusLabels[d.status] || d.status);
-  const data = statsData.summary_completion.map(d => d.count);
-  const colors = statsData.summary_completion.map(d => statusColors[d.status] || COLORS.muted);
-  new Chart(ctx, {
-    type: 'doughnut',
-    data: {
-      labels: labels,
-      datasets: [{
-        data: data,
-        backgroundColor: colors,
-        borderWidth: 2,
-        borderColor: '#fff',
-      }]
-    },
-    options: {
-      responsive: true,
-      plugins: {
-        legend: { position: 'bottom', labels: { padding: 12 } },
+
+  const statsData = {{ stats | tojson }};
+
+  // 每日论文数量折线图
+  (function() {
+    const ctx = document.getElementById('dailyChart').getContext('2d');
+    const labels = statsData.daily_counts.map(d => d.date);
+    const data = statsData.daily_counts.map(d => d.count);
+    new Chart(ctx, {
+      type: 'line',
+      data: {
+        labels: labels,
+        datasets: [{
+          label: '论文数',
+          data: data,
+          borderColor: COLORS.primary,
+          backgroundColor: COLORS.primaryLight,
+          fill: true,
+          tension: 0.3,
+          pointRadius: 3,
+          pointHoverRadius: 6,
+        }]
+      },
+      options: {
+        responsive: true,
+        plugins: { legend: { display: false } },
+        scales: {
+          x: { ticks: { maxTicksLimit: 10, font: { size: 11 } } },
+          y: { beginAtZero: true, ticks: { stepSize: 1 } },
+        }
       }
-    }
-  });
-})();
+    });
+  })();
+
+  // 热门标签柱状图
+  (function() {
+    const ctx = document.getElementById('tagsChart').getContext('2d');
+    const labels = statsData.top_tags.map(d => d.tag);
+    const data = statsData.top_tags.map(d => d.count);
+    new Chart(ctx, {
+      type: 'bar',
+      data: {
+        labels: labels,
+        datasets: [{
+          label: '论文数',
+          data: data,
+          backgroundColor: COLORS.palette.slice(0, data.length),
+          borderRadius: 4,
+        }]
+      },
+      options: {
+        responsive: true,
+        indexAxis: 'y',
+        plugins: { legend: { display: false } },
+        scales: {
+          x: { beginAtZero: true, ticks: { stepSize: 1 } },
+        }
+      }
+    });
+  })();
+
+  // Upvotes 分布
+  (function() {
+    const ctx = document.getElementById('upvotesChart').getContext('2d');
+    const labels = statsData.upvotes_dist.map(d => d.range);
+    const data = statsData.upvotes_dist.map(d => d.count);
+    new Chart(ctx, {
+      type: 'bar',
+      data: {
+        labels: labels,
+        datasets: [{
+          label: '论文数',
+          data: data,
+          backgroundColor: COLORS.accent,
+          borderRadius: 4,
+        }]
+      },
+      options: {
+        responsive: true,
+        plugins: { legend: { display: false } },
+        scales: {
+          y: { beginAtZero: true, ticks: { stepSize: 1 } },
+        }
+      }
+    });
+  })();
+
+  // 总结完成率环形图
+  (function() {
+    const ctx = document.getElementById('summaryChart').getContext('2d');
+    const statusLabels = {
+      'done': '已完成',
+      'pending': '待总结',
+      'processing': '总结中',
+      'failed': '失败',
+      'permanent_failure': '永久失败',
+      'none': '未开始',
+    };
+    const statusColors = {
+      'done': COLORS.success,
+      'pending': COLORS.warning,
+      'processing': COLORS.primary,
+      'failed': COLORS.danger,
+      'permanent_failure': '#b71c1c',
+      'none': '#bdbdbd',
+    };
+    const labels = statsData.summary_completion.map(d => statusLabels[d.status] || d.status);
+    const data = statsData.summary_completion.map(d => d.count);
+    const colors = statsData.summary_completion.map(d => statusColors[d.status] || COLORS.muted);
+    new Chart(ctx, {
+      type: 'doughnut',
+      data: {
+        labels: labels,
+        datasets: [{
+          data: data,
+          backgroundColor: colors,
+          borderWidth: 2,
+          borderColor: '#fff',
+        }]
+      },
+      options: {
+        responsive: true,
+        plugins: {
+          legend: { position: 'bottom', labels: { padding: 12 } },
+        }
+      }
+    });
+  })();
 </script>
 {% endblock %}
diff --git a/app/utils.py b/app/utils.py
index 63c794a..a359ffe 100644
--- a/app/utils.py
+++ b/app/utils.py
@@ -47,7 +47,9 @@ def release_lock(db, lock) -> None:
 # ── HTTP 客户端工厂 ───────────────────────────────────────────────────
 
 
-def make_http_client(*, sync: bool = False, follow_redirects: bool = False, **kwargs) -> httpx.AsyncClient | httpx.Client:
+def make_http_client(
+    *, sync: bool = False, follow_redirects: bool = False, **kwargs
+) -> httpx.AsyncClient | httpx.Client:
     """创建带 proxy 和默认配置的 httpx 客户端。
 
     Args:
diff --git a/scripts/init_db.py b/scripts/init_db.py
index 193422e..9fe282c 100644
--- a/scripts/init_db.py
+++ b/scripts/init_db.py
@@ -2,4 +2,5 @@
 
 if __name__ == "__main__":
     from app.cli import cli_app
+
     cli_app(["init-db"])
diff --git a/scripts/manual_crawl.py b/scripts/manual_crawl.py
index 52e7810..483fbd5 100644
--- a/scripts/manual_crawl.py
+++ b/scripts/manual_crawl.py
@@ -3,4 +3,5 @@
 if __name__ == "__main__":
     import sys
     from app.cli import cli_app
+
     cli_app(["crawl"] + sys.argv[1:])
diff --git a/tests/conftest.py b/tests/conftest.py
index 1090322..c5f4184 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -225,26 +225,28 @@ def sample_papers_range(db_session):
     """插入 5 篇不同日期的论文（用于 admin / cleaner 测试）。"""
     now = datetime.now(timezone.utc)
     papers = []
-    for i, (arxiv_id, paper_date_str) in enumerate([
-        ("2401.10001", "2024-01-10"),
-        ("2401.10002", "2024-01-11"),
-        ("2401.10003", "2024-01-12"),
-        ("2401.10004", "2024-01-13"),
-        ("2401.10005", "2024-01-14"),
-    ]):
+    for i, (arxiv_id, paper_date_str) in enumerate(
+        [
+            ("2401.10001", "2024-01-10"),
+            ("2401.10002", "2024-01-11"),
+            ("2401.10003", "2024-01-12"),
+            ("2401.10004", "2024-01-13"),
+            ("2401.10005", "2024-01-14"),
+        ]
+    ):
         paper_date = date.fromisoformat(paper_date_str)
         p = Paper(
             arxiv_id=arxiv_id,
-            title_en=f"Test Paper {i+1}",
-            abstract=f"Abstract for paper {i+1}.",
+            title_en=f"Test Paper {i + 1}",
+            abstract=f"Abstract for paper {i + 1}.",
             paper_date=paper_date,
             crawled_at=now,
             upvotes=i * 10,
         )
         db_session.add(p)
         db_session.flush()
-        db_session.add(PaperAuthor(paper_id=p.id, name=f"Author {i+1}", position=0))
-        db_session.add(PaperTag(paper_id=p.id, tag=f"Tag{i+1}", source="hf"))
+        db_session.add(PaperAuthor(paper_id=p.id, name=f"Author {i + 1}", position=0))
+        db_session.add(PaperTag(paper_id=p.id, tag=f"Tag{i + 1}", source="hf"))
         db_session.add(SummaryStatus(paper_id=p.id, status="pending"))
         # FTS5
         db_session.execute(
@@ -252,8 +254,13 @@ def sample_papers_range(db_session):
                 "INSERT INTO papers_fts(rowid, title_en, abstract, authors, tags) "
                 "VALUES (:id, :title, :abstract, :authors, :tags)"
             ),
-            {"id": p.id, "title": p.title_en, "abstract": p.abstract,
-             "authors": f"Author {i+1}", "tags": f"Tag{i+1}"},
+            {
+                "id": p.id,
+                "title": p.title_en,
+                "abstract": p.abstract,
+                "authors": f"Author {i + 1}",
+                "tags": f"Tag{i + 1}",
+            },
         )
         papers.append(p)
     db_session.commit()
@@ -265,19 +272,21 @@ def sample_papers_with_summary(db_session):
     """插入 5 篇带总结的论文（用于 search / pages / trends 测试）。"""
     now = datetime.now(timezone.utc)
     papers = []
-    for i, (arxiv_id, paper_date_str) in enumerate([
-        ("2401.20001", "2024-01-10"),
-        ("2401.20002", "2024-01-11"),
-        ("2401.20003", "2024-01-12"),
-        ("2401.20004", "2024-01-13"),
-        ("2401.20005", "2024-01-14"),
-    ]):
+    for i, (arxiv_id, paper_date_str) in enumerate(
+        [
+            ("2401.20001", "2024-01-10"),
+            ("2401.20002", "2024-01-11"),
+            ("2401.20003", "2024-01-12"),
+            ("2401.20004", "2024-01-13"),
+            ("2401.20005", "2024-01-14"),
+        ]
+    ):
         paper_date = date.fromisoformat(paper_date_str)
         p = Paper(
             arxiv_id=arxiv_id,
-            title_en=f"Test Paper {i+1}",
-            title_zh=f"测试论文 {i+1}",
-            abstract=f"Abstract for paper {i+1}.",
+            title_en=f"Test Paper {i + 1}",
+            title_zh=f"测试论文 {i + 1}",
+            abstract=f"Abstract for paper {i + 1}.",
             paper_date=paper_date,
             crawled_at=now,
             upvotes=i * 10 + 5,
@@ -285,28 +294,30 @@ def sample_papers_with_summary(db_session):
         db_session.add(p)
         db_session.flush()
 
-        db_session.add(PaperAuthor(paper_id=p.id, name=f"Author {i+1}", position=0))
+        db_session.add(PaperAuthor(paper_id=p.id, name=f"Author {i + 1}", position=0))
         db_session.add(PaperTag(paper_id=p.id, tag="NLP", source="hf"))
-        db_session.add(PaperTag(paper_id=p.id, tag=f"Tag{i+1}", source="hf"))
+        db_session.add(PaperTag(paper_id=p.id, tag=f"Tag{i + 1}", source="hf"))
 
-        db_session.add(SummaryStatus(
-            paper_id=p.id,
-            status="done" if i < 4 else "pending",
-            quality="normal",
-        ))
+        db_session.add(
+            SummaryStatus(
+                paper_id=p.id,
+                status="done" if i < 4 else "pending",
+                quality="normal",
+            )
+        )
 
         # 添加总结（前 4 篇）
         if i < 4:
             summary = PaperSummary(
                 paper_id=p.id,
-                one_line=f"这是论文{i+1}的一句话摘要",
+                one_line=f"这是论文{i + 1}的一句话摘要",
                 difficulty="中级",
-                motivation_problem=f"论文{i+1}的研究问题",
-                motivation_goal=f"论文{i+1}的研究目标",
-                method_key_idea=f"论文{i+1}的关键思路",
-                method_overview=f"论文{i+1}的方法概述",
+                motivation_problem=f"论文{i + 1}的研究问题",
+                motivation_goal=f"论文{i + 1}的研究目标",
+                method_key_idea=f"论文{i + 1}的关键思路",
+                method_overview=f"论文{i + 1}的方法概述",
                 updated_at=now,
-                full_json=json.dumps({"title_zh": f"测试论文 {i+1}"}),
+                full_json=json.dumps({"title_zh": f"测试论文 {i + 1}"}),
             )
             db_session.add(summary)
 
@@ -321,8 +332,8 @@ def sample_papers_with_summary(db_session):
                 "title_en": p.title_en,
                 "title_zh": p.title_zh or "",
                 "abstract": p.abstract or "",
-                "authors": f"Author {i+1}",
-                "tags": f"NLP, Tag{i+1}",
+                "authors": f"Author {i + 1}",
+                "tags": f"NLP, Tag{i + 1}",
             },
         )
         papers.append(p)
diff --git a/tests/test_admin.py b/tests/test_admin.py
index 8c77da5..a972dcc 100644
--- a/tests/test_admin.py
+++ b/tests/test_admin.py
@@ -49,7 +49,9 @@ class TestAdminAuth:
 
     def test_correct_token_accepted(self, auth_client, admin_headers):
         """正确 token 应被接受（crawl 可能会失败但不是 401）。"""
-        with patch("app.routes.admin.crawl_daily", new_callable=AsyncMock) as mock_crawl:
+        with patch(
+            "app.routes.admin.crawl_daily", new_callable=AsyncMock
+        ) as mock_crawl:
             mock_crawl.return_value = {"found": 0, "new": 0, "status": "success"}
             resp = auth_client.post("/admin/crawl", headers=admin_headers)
             assert resp.status_code != 401
@@ -75,8 +77,15 @@ class TestAdminAuth:
         original = config_mod.settings.ADMIN_TOKEN
         config_mod.settings.ADMIN_TOKEN = ADMIN_TOKEN
         try:
-            with patch("app.routes.admin.summarize_batch", new_callable=AsyncMock) as mock:
-                mock.return_value = {"status": "success", "done": 0, "failed": 0, "total": 0}
+            with patch(
+                "app.routes.admin.summarize_batch", new_callable=AsyncMock
+            ) as mock:
+                mock.return_value = {
+                    "status": "success",
+                    "done": 0,
+                    "failed": 0,
+                    "total": 0,
+                }
                 resp = client.post("/admin/summarize", headers=admin_headers)
                 assert resp.status_code == 200
                 assert resp.json()["status"] == "success"
@@ -114,7 +123,9 @@ class TestAdminCrawl:
 
     def test_crawl_default_today(self, auth_client, admin_headers):
         """不指定日期时默认抓取今天。"""
-        with patch("app.routes.admin.crawl_daily", new_callable=AsyncMock) as mock_crawl:
+        with patch(
+            "app.routes.admin.crawl_daily", new_callable=AsyncMock
+        ) as mock_crawl:
             mock_crawl.return_value = {"found": 5, "new": 3, "status": "success"}
             resp = auth_client.post("/admin/crawl", headers=admin_headers)
             assert resp.status_code == 200
@@ -124,9 +135,13 @@ class TestAdminCrawl:
 
     def test_crawl_specific_date(self, auth_client, admin_headers):
         """指定日期抓取。"""
-        with patch("app.routes.admin.crawl_daily", new_callable=AsyncMock) as mock_crawl:
+        with patch(
+            "app.routes.admin.crawl_daily", new_callable=AsyncMock
+        ) as mock_crawl:
             mock_crawl.return_value = {"found": 2, "new": 1, "status": "success"}
-            resp = auth_client.post("/admin/crawl?date=2024-01-15", headers=admin_headers)
+            resp = auth_client.post(
+                "/admin/crawl?date=2024-01-15", headers=admin_headers
+            )
             assert resp.status_code == 200
             mock_crawl.assert_called_once()
             call_args = mock_crawl.call_args
@@ -157,9 +172,11 @@ class TestAdminCleanup:
             mock_cleanup.return_value = {"scanned": 0, "removed": 0, "errors": []}
             auth_client.post("/admin/cleanup", headers=admin_headers)
 
-        logs = db_session.execute(
-            select(CrawlLog).where(CrawlLog.task == "cleanup")
-        ).scalars().all()
+        logs = (
+            db_session.execute(select(CrawlLog).where(CrawlLog.task == "cleanup"))
+            .scalars()
+            .all()
+        )
         assert len(logs) >= 1
         assert logs[-1].status == "success"
 
@@ -186,7 +203,9 @@ class TestAdminDelete:
         )
         assert resp.status_code == 422
 
-    def test_delete_with_confirm(self, auth_client, admin_headers, db_session, sample_papers_range):
+    def test_delete_with_confirm(
+        self, auth_client, admin_headers, db_session, sample_papers_range
+    ):
         """confirm='DELETE' 时应执行删除。"""
         resp = auth_client.post(
             "/admin/delete",
@@ -247,13 +266,20 @@ class TestAdminLogs:
         resp = auth_client.get("/admin/logs")
         assert resp.status_code in (403, 401)
 
-    def test_logs_contains_data(self, auth_client, admin_headers, db_session, sample_papers_range):
+    def test_logs_contains_data(
+        self, auth_client, admin_headers, db_session, sample_papers_range
+    ):
         """日志页面应包含日志数据。"""
         # 先创建一条日志
         now = datetime.now(timezone.utc)
-        db_session.add(CrawlLog(
-            task="crawl", status="success", started_at=now, completed_at=now,
-        ))
+        db_session.add(
+            CrawlLog(
+                task="crawl",
+                status="success",
+                started_at=now,
+                completed_at=now,
+            )
+        )
         db_session.commit()
 
         resp = auth_client.get("/admin/logs", headers=admin_headers)
@@ -273,9 +299,11 @@ class TestScheduler:
         """SCHEDULER_ENABLED=false 时不应启动调度器。"""
         monkeypatch.setattr(settings, "SCHEDULER_ENABLED", False)
         import app.services.scheduler as sched_mod
+
         sched_mod._scheduler = None
 
         from app.services.scheduler import start_scheduler
+
         result = start_scheduler()
         assert result is None
 
@@ -285,9 +313,11 @@ class TestScheduler:
         monkeypatch.setattr(settings, "SCHEDULER_ENABLED", True)
         monkeypatch.setattr(settings, "APP_WORKERS", 1)
         import app.services.scheduler as sched_mod
+
         sched_mod._scheduler = None
 
         from app.services.scheduler import start_scheduler, stop_scheduler
+
         scheduler = start_scheduler()
         assert scheduler is not None
 
@@ -305,9 +335,11 @@ class TestScheduler:
         monkeypatch.setattr(settings, "SCHEDULER_ENABLED", True)
         monkeypatch.setattr(settings, "APP_WORKERS", 4)
         import app.services.scheduler as sched_mod
+
         sched_mod._scheduler = None
 
         from app.services.scheduler import start_scheduler, stop_scheduler
+
         with caplog.at_level(logging.WARNING):
             scheduler = start_scheduler()
 
@@ -356,15 +388,21 @@ class TestTaskLocks:
         """同一 task + lock_key 只能有一个 running 锁。"""
         now = datetime.now(timezone.utc)
         lock1 = TaskLock(
-            task="crawl", lock_key="2024-01-15",
-            status="running", owner="test1", acquired_at=now,
+            task="crawl",
+            lock_key="2024-01-15",
+            status="running",
+            owner="test1",
+            acquired_at=now,
         )
         db_session.add(lock1)
         db_session.commit()
 
         lock2 = TaskLock(
-            task="crawl", lock_key="2024-01-15",
-            status="running", owner="test2", acquired_at=now,
+            task="crawl",
+            lock_key="2024-01-15",
+            status="running",
+            owner="test2",
+            acquired_at=now,
         )
         db_session.add(lock2)
         with pytest.raises(Exception):
@@ -375,16 +413,22 @@ class TestTaskLocks:
         """已释放的锁允许新的 running 锁。"""
         now = datetime.now(timezone.utc)
         lock1 = TaskLock(
-            task="crawl", lock_key="2024-01-16",
-            status="finished", owner="test1",
-            acquired_at=now, released_at=now,
+            task="crawl",
+            lock_key="2024-01-16",
+            status="finished",
+            owner="test1",
+            acquired_at=now,
+            released_at=now,
         )
         db_session.add(lock1)
         db_session.commit()
 
         lock2 = TaskLock(
-            task="crawl", lock_key="2024-01-16",
-            status="running", owner="test2", acquired_at=now,
+            task="crawl",
+            lock_key="2024-01-16",
+            status="running",
+            owner="test2",
+            acquired_at=now,
         )
         db_session.add(lock2)
         db_session.commit()  # 应成功
diff --git a/tests/test_cleaner.py b/tests/test_cleaner.py
index ab00b92..6d570de 100644
--- a/tests/test_cleaner.py
+++ b/tests/test_cleaner.py
@@ -29,13 +29,17 @@ def sample_paper_with_user_data(db_session, sample_papers_range):
     paper = sample_papers_range[0]
     now = datetime.now(timezone.utc)
     db_session.add(UserBookmark(paper_id=paper.id, created_at=now))
-    db_session.add(UserReadingStatus(paper_id=paper.id, status="read_summary", updated_at=now))
-    db_session.add(UserNote(
-        paper_id=paper.id,
-        content="My notes on this paper",
-        created_at=now,
-        updated_at=now,
-    ))
+    db_session.add(
+        UserReadingStatus(paper_id=paper.id, status="read_summary", updated_at=now)
+    )
+    db_session.add(
+        UserNote(
+            paper_id=paper.id,
+            content="My notes on this paper",
+            created_at=now,
+            updated_at=now,
+        )
+    )
     db_session.commit()
     return paper
 
@@ -64,6 +68,7 @@ class TestCleanupTmp:
 
         monkeypatch.setattr("app.services.cleaner.TMP_DIR", tmp_dir)
         from app.services.cleaner import cleanup_tmp
+
         result = cleanup_tmp()
 
         assert result["scanned"] == 1
@@ -81,6 +86,7 @@ class TestCleanupTmp:
 
         monkeypatch.setattr("app.services.cleaner.TMP_DIR", tmp_dir)
         from app.services.cleaner import cleanup_tmp
+
         result = cleanup_tmp()
 
         assert result["scanned"] == 1
@@ -91,6 +97,7 @@ class TestCleanupTmp:
         """data/tmp/ 不存在时安全返回。"""
         monkeypatch.setattr("app.services.cleaner.TMP_DIR", tmp_path / "nonexistent")
         from app.services.cleaner import cleanup_tmp
+
         result = cleanup_tmp()
         assert result["scanned"] == 0
         assert result["removed"] == 0
@@ -110,6 +117,7 @@ class TestCleanupTmp:
 
         monkeypatch.setattr("app.services.cleaner.TMP_DIR", tmp_dir)
         from app.services.cleaner import cleanup_tmp
+
         result = cleanup_tmp()
 
         assert result["scanned"] == 2
@@ -178,14 +186,18 @@ class TestDeletePapersByDateRange:
             date(2024, 1, 14),
         )
 
-        logs = db_session.execute(
-            select(CrawlLog).where(CrawlLog.task == "delete")
-        ).scalars().all()
+        logs = (
+            db_session.execute(select(CrawlLog).where(CrawlLog.task == "delete"))
+            .scalars()
+            .all()
+        )
         assert len(logs) == 1
         assert logs[0].status == "success"
 
     @pytest.mark.asyncio
-    async def test_delete_cascade_user_data(self, db_session, sample_paper_with_user_data):
+    async def test_delete_cascade_user_data(
+        self, db_session, sample_paper_with_user_data
+    ):
         """删除论文时应 cascade 删除关联的用户数据。"""
         from app.services.cleaner import delete_papers_by_date_range
 
@@ -200,15 +212,24 @@ class TestDeletePapersByDateRange:
         assert result["deleted"] == 1
 
         # 确认用户数据被 cascade 删除
-        assert db_session.execute(
-            select(UserBookmark).where(UserBookmark.paper_id == paper.id)
-        ).scalar_one_or_none() is None
-        assert db_session.execute(
-            select(UserReadingStatus).where(UserReadingStatus.paper_id == paper.id)
-        ).scalar_one_or_none() is None
-        assert db_session.execute(
-            select(UserNote).where(UserNote.paper_id == paper.id)
-        ).scalar_one_or_none() is None
+        assert (
+            db_session.execute(
+                select(UserBookmark).where(UserBookmark.paper_id == paper.id)
+            ).scalar_one_or_none()
+            is None
+        )
+        assert (
+            db_session.execute(
+                select(UserReadingStatus).where(UserReadingStatus.paper_id == paper.id)
+            ).scalar_one_or_none()
+            is None
+        )
+        assert (
+            db_session.execute(
+                select(UserNote).where(UserNote.paper_id == paper.id)
+            ).scalar_one_or_none()
+            is None
+        )
 
     @pytest.mark.asyncio
     async def test_delete_removes_fts(self, db_session, sample_papers_range):
@@ -229,7 +250,9 @@ class TestDeletePapersByDateRange:
         assert rows == 0
 
     @pytest.mark.asyncio
-    async def test_delete_removes_local_files(self, db_session, sample_papers_range, tmp_path, monkeypatch):
+    async def test_delete_removes_local_files(
+        self, db_session, sample_papers_range, tmp_path, monkeypatch
+    ):
         """删除论文时应删除本地文件目录。"""
         from app.services.cleaner import delete_papers_by_date_range
 
@@ -263,13 +286,17 @@ class TestDeletePapersByDateRange:
         assert result["status"] == "success"
 
     @pytest.mark.asyncio
-    async def test_cleaner_works_without_chroma(self, db_session, sample_papers_with_summary, monkeypatch):
+    async def test_cleaner_works_without_chroma(
+        self, db_session, sample_papers_with_summary, monkeypatch
+    ):
         """CHROMA 关闭时删除论文正常工作。"""
         monkeypatch.setattr(settings, "CHROMA_ENABLED", False)
         import app.services.embedder as emb
+
         emb._chroma.reset()
 
         from app.services.cleaner import delete_papers_by_date_range
+
         result = await delete_papers_by_date_range(
             db_session,
             date(2024, 1, 10),
diff --git a/tests/test_embedder.py b/tests/test_embedder.py
index f9b491e..9991a4f 100644
--- a/tests/test_embedder.py
+++ b/tests/test_embedder.py
@@ -21,6 +21,7 @@ class TestEmbedderInit:
         """CHROMA_ENABLED=false 时不初始化。"""
         monkeypatch.setattr(settings, "CHROMA_ENABLED", False)
         import app.services.embedder as emb
+
         emb._chroma.reset()
         emb.init_chroma()
         assert emb._chroma._client is None
@@ -31,6 +32,7 @@ class TestEmbedderInit:
         monkeypatch.setattr(settings, "CHROMA_DIR", str(tmp_path / "chroma"))
 
         import app.services.embedder as emb
+
         emb._chroma.reset()
         emb.init_chroma()
 
@@ -44,6 +46,7 @@ class TestEmbedderInit:
         """CHROMA_ENABLED=false 时 get_collection 返回 None。"""
         monkeypatch.setattr(settings, "CHROMA_ENABLED", False)
         import app.services.embedder as emb
+
         emb._chroma.reset()
         assert emb.get_collection() is None
 
@@ -60,6 +63,7 @@ class TestEmbedderIndexing:
         """CHROMA_ENABLED=false 时 index_paper 返回 False。"""
         monkeypatch.setattr(settings, "CHROMA_ENABLED", False)
         import app.services.embedder as emb
+
         emb._chroma.reset()
         assert emb.index_paper("test-id") is False
 
@@ -71,6 +75,7 @@ class TestEmbedderIndexing:
         monkeypatch.setattr(settings, "EMBED_MODEL", "")
 
         import app.services.embedder as emb
+
         emb._chroma.reset()
         emb.init_chroma()
 
@@ -83,6 +88,7 @@ class TestEmbedderIndexing:
         """CHROMA_ENABLED=false 时 index_batch 返回全失败。"""
         monkeypatch.setattr(settings, "CHROMA_ENABLED", False)
         import app.services.embedder as emb
+
         emb._chroma.reset()
         result = emb.index_batch(["a", "b"])
         assert result["success"] == 0
@@ -92,6 +98,7 @@ class TestEmbedderIndexing:
         """空列表时返回 0。"""
         monkeypatch.setattr(settings, "CHROMA_ENABLED", False)
         import app.services.embedder as emb
+
         result = emb.index_batch([])
         assert result["total"] == 0
 
@@ -99,6 +106,7 @@ class TestEmbedderIndexing:
         """CHROMA_ENABLED=false 时 delete_paper 返回 False。"""
         monkeypatch.setattr(settings, "CHROMA_ENABLED", False)
         import app.services.embedder as emb
+
         emb._chroma.reset()
         assert emb.delete_paper("test-id") is False
 
@@ -106,6 +114,7 @@ class TestEmbedderIndexing:
         """CHROMA_ENABLED=false 时 search_similar 返回空列表。"""
         monkeypatch.setattr(settings, "CHROMA_ENABLED", False)
         import app.services.embedder as emb
+
         emb._chroma.reset()
         assert emb.search_similar("test query") == []
 
@@ -123,6 +132,7 @@ class TestEmbeddingApi:
         monkeypatch.setattr(settings, "EMBED_API_BASE", "")
         monkeypatch.setattr(settings, "EMBED_MODEL", "")
         import app.services.embedder as emb
+
         assert emb._get_embedding("test") is None
 
     def test_dimension_mismatch_returns_none(self, monkeypatch):
@@ -158,6 +168,8 @@ class TestEmbeddingApi:
         with patch("httpx.Client") as mock_client:
             mock_client.return_value.__enter__ = MagicMock()
             mock_client.return_value.__exit__ = MagicMock(return_value=False)
-            mock_client.return_value.__enter__.return_value.post.side_effect = Exception("timeout")
+            mock_client.return_value.__enter__.return_value.post.side_effect = (
+                Exception("timeout")
+            )
             result = emb._get_embedding("test")
             assert result is None
diff --git a/tests/test_image_extractor.py b/tests/test_image_extractor.py
index 3622f7c..51b58eb 100644
--- a/tests/test_image_extractor.py
+++ b/tests/test_image_extractor.py
@@ -16,9 +16,14 @@ class TestImageExtraction:
     @pytest.mark.asyncio
     async def test_extract_images_from_source_no_dir(self, monkeypatch, tmp_path):
         """源码目录不存在时返回 0。"""
-        monkeypatch.setattr("app.services.pdf_downloader.tmp_dir", lambda x: tmp_path / "tmp" / x)
-        monkeypatch.setattr("app.services.pdf_downloader.paper_dir", lambda x: tmp_path / "papers" / x)
+        monkeypatch.setattr(
+            "app.services.pdf_downloader.tmp_dir", lambda x: tmp_path / "tmp" / x
+        )
+        monkeypatch.setattr(
+            "app.services.pdf_downloader.paper_dir", lambda x: tmp_path / "papers" / x
+        )
         from app.services.image_extractor import extract_images_from_source
+
         result = await extract_images_from_source("2401.99999")
         assert result == 0
 
@@ -49,14 +54,20 @@ class TestImageExtraction:
         (tmp_source / "main.tex").write_text(tex_content)
 
         papers_dir = tmp_path / "papers" / "2401.00001"
-        monkeypatch.setattr("app.services.image_extractor.tmp_dir", lambda x: tmp_path / "tmp" / x)
-        monkeypatch.setattr("app.services.image_extractor.paper_dir", lambda x: tmp_path / "papers" / x)
+        monkeypatch.setattr(
+            "app.services.image_extractor.tmp_dir", lambda x: tmp_path / "tmp" / x
+        )
+        monkeypatch.setattr(
+            "app.services.image_extractor.paper_dir", lambda x: tmp_path / "papers" / x
+        )
 
         # Mock download_source_zip to avoid real network call (source dir already exists)
         async def _noop_download(*args, **kwargs):
             pass
 
-        monkeypatch.setattr("app.services.image_extractor.download_source_zip", _noop_download)
+        monkeypatch.setattr(
+            "app.services.image_extractor.download_source_zip", _noop_download
+        )
 
         result = await extract_images_from_source("2401.00001")
 
@@ -73,16 +84,24 @@ class TestImageExtraction:
 
         tmp_source = tmp_path / "tmp" / "2401.00002" / "source"
         tmp_source.mkdir(parents=True)
-        (tmp_source / "main.tex").write_text(r"\documentclass{article}\begin{document}Hello\end{document}")
+        (tmp_source / "main.tex").write_text(
+            r"\documentclass{article}\begin{document}Hello\end{document}"
+        )
 
-        monkeypatch.setattr("app.services.image_extractor.tmp_dir", lambda x: tmp_path / "tmp" / x)
-        monkeypatch.setattr("app.services.image_extractor.paper_dir", lambda x: tmp_path / "papers" / x)
+        monkeypatch.setattr(
+            "app.services.image_extractor.tmp_dir", lambda x: tmp_path / "tmp" / x
+        )
+        monkeypatch.setattr(
+            "app.services.image_extractor.paper_dir", lambda x: tmp_path / "papers" / x
+        )
 
         # Mock download_source_zip to avoid real network call
         async def _noop_download(*args, **kwargs):
             pass
 
-        monkeypatch.setattr("app.services.image_extractor.download_source_zip", _noop_download)
+        monkeypatch.setattr(
+            "app.services.image_extractor.download_source_zip", _noop_download
+        )
 
         result = await extract_images_from_source("2401.00002")
         assert result == 0
diff --git a/tests/test_pages.py b/tests/test_pages.py
index c7c6e3a..b8be535 100644
--- a/tests/test_pages.py
+++ b/tests/test_pages.py
@@ -162,7 +162,9 @@ class TestComparePage:
         resp = client.get("/compare?ids=nonexistent.99999")
         assert resp.status_code == 200
 
-    def test_compare_page_shows_no_summary_placeholder(self, client, sample_papers_with_summary):
+    def test_compare_page_shows_no_summary_placeholder(
+        self, client, sample_papers_with_summary
+    ):
         """无总结的论文显示占位文本。"""
         # 2401.20005 没有 summary（status=pending）
         resp = client.get("/compare?ids=2401.20005")
@@ -198,26 +200,34 @@ class TestNavBar:
 class TestGracefulDegradation:
     """CHROMA_ENABLED=false 时优雅降级测试。"""
 
-    def test_search_works_without_chroma(self, client, monkeypatch, sample_papers_with_summary):
+    def test_search_works_without_chroma(
+        self, client, monkeypatch, sample_papers_with_summary
+    ):
         """CHROMA 关闭时 FTS5 搜索正常工作。"""
         monkeypatch.setattr(settings, "CHROMA_ENABLED", False)
         resp = client.get("/search?q=Test")
         assert resp.status_code == 200
         assert "Test Paper" in resp.text or "测试论文" in resp.text
 
-    def test_detail_works_without_chroma(self, client, monkeypatch, sample_papers_with_summary):
+    def test_detail_works_without_chroma(
+        self, client, monkeypatch, sample_papers_with_summary
+    ):
         """CHROMA 关闭时详情页正常工作。"""
         monkeypatch.setattr(settings, "CHROMA_ENABLED", False)
         resp = client.get("/paper/2401.20001")
         assert resp.status_code == 200
 
-    def test_trends_works_without_chroma(self, client, monkeypatch, sample_papers_with_summary):
+    def test_trends_works_without_chroma(
+        self, client, monkeypatch, sample_papers_with_summary
+    ):
         """CHROMA 关闭时趋势看板正常工作。"""
         monkeypatch.setattr(settings, "CHROMA_ENABLED", False)
         resp = client.get("/trends")
         assert resp.status_code == 200
 
-    def test_compare_works_without_chroma(self, client, monkeypatch, sample_papers_with_summary):
+    def test_compare_works_without_chroma(
+        self, client, monkeypatch, sample_papers_with_summary
+    ):
         """CHROMA 关闭时对比页正常工作。"""
         monkeypatch.setattr(settings, "CHROMA_ENABLED", False)
         resp = client.get("/compare?ids=2401.20001,2401.20002")
diff --git a/tests/test_searcher.py b/tests/test_searcher.py
index f30ebda..626733b 100644
--- a/tests/test_searcher.py
+++ b/tests/test_searcher.py
@@ -18,46 +18,54 @@ class TestSearchService:
 
     def test_search_by_title(self, db_session, sample_paper):
         from app.services.searcher import search_papers
+
         result = search_papers(db_session, query="Test Paper")
         assert result["total"] == 1
         assert result["results"][0].arxiv_id == "2401.12345"
 
     def test_search_by_abstract(self, db_session, sample_paper):
         from app.services.searcher import search_papers
+
         result = search_papers(db_session, query="test abstract")
         assert result["total"] == 1
 
     def test_search_by_author(self, db_session, sample_paper):
         from app.services.searcher import search_papers
+
         result = search_papers(db_session, query="Alice")
         assert result["total"] == 1
 
     def test_search_by_tag_in_fts(self, db_session, sample_paper):
         from app.services.searcher import search_papers
+
         # FTS5 索引中包含 tags 列，可以搜到
         result = search_papers(db_session, query="NLP")
         assert result["total"] == 1
 
     def test_search_no_results(self, db_session, sample_paper):
         from app.services.searcher import search_papers
+
         result = search_papers(db_session, query="quantum entanglement")
         assert result["total"] == 0
         assert result["results"] == []
 
     def test_search_empty_query_returns_empty(self, db_session):
         from app.services.searcher import search_papers
+
         result = search_papers(db_session, query="")
         assert result["total"] == 0
         assert result["results"] == []
 
     def test_search_special_characters_sanitized(self, db_session, sample_paper):
         from app.services.searcher import search_papers
+
         # 特殊字符被清除后，剩下 "Test" 仍然能搜到
         result = search_papers(db_session, query='Test "Paper" {test}')
         assert result["total"] >= 1
 
     def test_search_with_tag_filter(self, db_session, sample_paper):
         from app.services.searcher import search_papers
+
         # 关键词 + 标签筛选
         result = search_papers(db_session, query="Paper", tag="NLP")
         assert result["total"] == 1
@@ -67,6 +75,7 @@ class TestSearchService:
 
     def test_search_tag_only_no_query(self, db_session, sample_paper):
         from app.services.searcher import search_papers
+
         # 只有标签，无关键词
         result = search_papers(db_session, tag="NLP")
         assert result["total"] == 1
@@ -74,12 +83,14 @@ class TestSearchService:
 
     def test_search_pagination(self, db_session, sample_paper):
         from app.services.searcher import search_papers
+
         result = search_papers(db_session, query="Test", page=2, page_size=10)
         assert result["page"] == 2
         assert result["total_pages"] == 1  # 只有 1 条结果，1 页
 
     def test_search_returns_snippets(self, db_session, sample_paper):
         from app.services.searcher import search_papers
+
         result = search_papers(db_session, query="test abstract")
         assert result["total"] == 1
         paper_id = result["results"][0].id
@@ -89,6 +100,7 @@ class TestSearchService:
 
     def test_get_all_tags(self, db_session, sample_paper):
         from app.services.searcher import get_all_tags
+
         tags = get_all_tags(db_session)
         assert "NLP" in tags
         assert "LLM" in tags
@@ -105,20 +117,27 @@ class TestSearchSemanticMode:
     def test_keyword_mode_default(self, db_session, sample_papers_with_summary):
         """默认 keyword 模式走 FTS5。"""
         from app.services.searcher import search_papers
+
         result = search_papers(db_session, query="Test Paper", mode="keyword")
         assert result["total"] >= 1
         assert result["distances"] == {}
 
-    def test_semantic_mode_disabled_fallback(self, db_session, monkeypatch, sample_papers_with_summary):
+    def test_semantic_mode_disabled_fallback(
+        self, db_session, monkeypatch, sample_papers_with_summary
+    ):
         """CHROMA_ENABLED=false + semantic 模式走 FTS5。"""
         monkeypatch.setattr(settings, "CHROMA_ENABLED", False)
         from app.services.searcher import search_papers
+
         result = search_papers(db_session, query="Test", mode="semantic")
         assert result["total"] >= 1
 
-    def test_search_returns_distances_dict(self, db_session, sample_papers_with_summary):
+    def test_search_returns_distances_dict(
+        self, db_session, sample_papers_with_summary
+    ):
         """搜索结果应包含 distances 字段。"""
         from app.services.searcher import search_papers
+
         result = search_papers(db_session, query="Test Paper")
         assert "distances" in result
         assert isinstance(result["distances"], dict)
@@ -126,6 +145,7 @@ class TestSearchSemanticMode:
     def test_empty_query_returns_empty_no_tags(self, db_session):
         """空查询无标签时返回空。"""
         from app.services.searcher import search_papers
+
         result = search_papers(db_session)
         assert result["total"] == 0
         assert result["results"] == []
@@ -133,6 +153,7 @@ class TestSearchSemanticMode:
     def test_tag_only_search(self, db_session, sample_papers_with_summary):
         """仅标签搜索。"""
         from app.services.searcher import search_papers
+
         result = search_papers(db_session, tag="NLP")
         assert result["total"] >= 1
 
@@ -169,7 +190,9 @@ class TestSearchRoutes:
         assert resp.status_code == 200
         assert "Test" in resp.text or "测试" in resp.text
 
-    def test_search_page_semantic_disabled(self, client, monkeypatch, sample_papers_with_summary):
+    def test_search_page_semantic_disabled(
+        self, client, monkeypatch, sample_papers_with_summary
+    ):
         """语义模式 CHROMA_ENABLED=false 时仍能工作。"""
         monkeypatch.setattr(settings, "CHROMA_ENABLED", False)
         resp = client.get("/search?q=Test&mode=semantic")
@@ -221,7 +244,9 @@ class TestSearchRoutes:
 class TestSimilarAPI:
     """相似论文 API 测试。"""
 
-    def test_similar_api_disabled(self, client, monkeypatch, sample_papers_with_summary):
+    def test_similar_api_disabled(
+        self, client, monkeypatch, sample_papers_with_summary
+    ):
         """CHROMA_ENABLED=false 时返回空列表。"""
         monkeypatch.setattr(settings, "CHROMA_ENABLED", False)
         resp = client.get("/api/similar/2401.20001")
@@ -236,7 +261,9 @@ class TestSimilarAPI:
         assert resp.status_code == 200
         assert resp.json()["results"] == []
 
-    def test_similar_api_with_top_k(self, client, monkeypatch, sample_papers_with_summary):
+    def test_similar_api_with_top_k(
+        self, client, monkeypatch, sample_papers_with_summary
+    ):
         """top_k 参数控制返回数量。"""
         monkeypatch.setattr(settings, "CHROMA_ENABLED", False)
         resp = client.get("/api/similar/2401.20001?top_k=3")
diff --git a/tests/test_summarizer.py b/tests/test_summarizer.py
index 49ff237..65257f5 100644
--- a/tests/test_summarizer.py
+++ b/tests/test_summarizer.py
@@ -51,7 +51,9 @@ class TestDbUpdate:
         assert summary.motivation_problem == schema.motivation.problem
         assert json.loads(summary.full_json)["title_zh"] == schema.title_zh
 
-    def test_paper_title_zh_updated(self, db_session, sample_paper, sample_summary_dict):
+    def test_paper_title_zh_updated(
+        self, db_session, sample_paper, sample_summary_dict
+    ):
         schema = SummarySchema.model_validate(sample_summary_dict)
         _update_summary_in_db(db_session, sample_paper, schema, "normal", "raw")
 
@@ -85,7 +87,9 @@ class TestDbUpdate:
         assert "自然语言处理" in tag_names
         assert "大语言模型" in tag_names
 
-    def test_existing_tags_not_duplicated(self, db_session, sample_paper, sample_summary_dict):
+    def test_existing_tags_not_duplicated(
+        self, db_session, sample_paper, sample_summary_dict
+    ):
         """已存在的标签名（同 name）不会被 AI source 重复插入。"""
         # sample_paper 已有 NLP (hf)、LLM (hf)
         # 让 AI 输出包含 NLP（与 HF 重复）和 "新标签"（新的）
@@ -157,7 +161,10 @@ class TestSummarizeOneFlow:
     def _patch_paths(self, tmp_path):
         """将 data 目录重定向到 tmp_path。"""
         with (
-            patch("app.services.summarizer.paper_dir", lambda aid: tmp_path / "papers" / aid),
+            patch(
+                "app.services.summarizer.paper_dir",
+                lambda aid: tmp_path / "papers" / aid,
+            ),
             patch("app.services.pdf_downloader.PAPERS_DIR", tmp_path / "papers"),
             patch("app.services.pdf_downloader.TMP_DIR", tmp_path / "tmp"),
             patch("app.utils.PAPERS_DIR", tmp_path / "papers"),
@@ -172,7 +179,11 @@ class TestSummarizeOneFlow:
         """pending → processing → done 全流程。"""
         with (
             patch("app.services.summarizer.download_pdf", new_callable=AsyncMock),
-            patch("app.services.summarizer.call_pi", new_callable=AsyncMock, return_value=mock_pi_output),
+            patch(
+                "app.services.summarizer.call_pi",
+                new_callable=AsyncMock,
+                return_value=mock_pi_output,
+            ),
         ):
             result = await summarize_one(db_session, sample_paper)
 
@@ -198,9 +209,7 @@ class TestSummarizeOneFlow:
         assert fts_row[0] == "测试论文中文标题"
 
     @pytest.mark.asyncio
-    async def test_pdf_download_failure(
-        self, db_session, sample_paper, _patch_paths
-    ):
+    async def test_pdf_download_failure(self, db_session, sample_paper, _patch_paths):
         """PDF 下载失败 → error_type=pdf_download_failed，tmp 被清理。"""
         with (
             patch(
@@ -256,13 +265,16 @@ class TestSummarizeOneFlow:
         self, db_session, sample_paper, _patch_paths
     ):
         """必填字段缺失 → field_missing → retry → permanent_failure。"""
-        bad_json = json.dumps({
-            "title_zh": "",  # 空的必填字段
-            "one_line": "valid line",
-            "tags": ["tag1"],
-            "motivation": {"problem": "valid problem"},
-            "method": {"key_idea": "valid idea"},
-        }, ensure_ascii=False)
+        bad_json = json.dumps(
+            {
+                "title_zh": "",  # 空的必填字段
+                "one_line": "valid line",
+                "tags": ["tag1"],
+                "motivation": {"problem": "valid problem"},
+                "method": {"key_idea": "valid idea"},
+            },
+            ensure_ascii=False,
+        )
         bad_output = f"```json\n{bad_json}\n```"
 
         with (
@@ -314,7 +326,11 @@ class TestSummarizeOneFlow:
         """成功后清理 tmp 目录。"""
         with (
             patch("app.services.summarizer.download_pdf", new_callable=AsyncMock),
-            patch("app.services.summarizer.call_pi", new_callable=AsyncMock, return_value=mock_pi_output),
+            patch(
+                "app.services.summarizer.call_pi",
+                new_callable=AsyncMock,
+                return_value=mock_pi_output,
+            ),
         ):
             await summarize_one(db_session, sample_paper)
 
@@ -359,7 +375,10 @@ class TestBatchSummarize:
     @pytest.fixture
     def _patch_paths(self, tmp_path):
         with (
-            patch("app.services.summarizer.paper_dir", lambda aid: tmp_path / "papers" / aid),
+            patch(
+                "app.services.summarizer.paper_dir",
+                lambda aid: tmp_path / "papers" / aid,
+            ),
             patch("app.services.pdf_downloader.PAPERS_DIR", tmp_path / "papers"),
             patch("app.services.pdf_downloader.TMP_DIR", tmp_path / "tmp"),
             patch("app.utils.PAPERS_DIR", tmp_path / "papers"),
@@ -390,15 +409,18 @@ class TestBatchSummarize:
 
         # 每个 worker 用独立 session（同一个内存引擎）
         from sqlalchemy.orm import sessionmaker as _sm
+
         _TestSession = _sm(bind=db_engine, autoflush=False, autocommit=False)
 
         with (
             patch("app.services.summarizer.download_pdf", new_callable=AsyncMock),
-            patch("app.services.summarizer.call_pi", new_callable=AsyncMock, return_value=mock_pi_output),
+            patch(
+                "app.services.summarizer.call_pi",
+                new_callable=AsyncMock,
+                return_value=mock_pi_output,
+            ),
         ):
-            result = await summarize_batch(
-                db_session, _session_factory=_TestSession
-            )
+            result = await summarize_batch(db_session, _session_factory=_TestSession)
 
         assert result["status"] == "success"
         assert result["done"] == 3
@@ -432,6 +454,7 @@ class TestBatchSummarize:
         db_session.commit()
 
         from sqlalchemy.orm import sessionmaker as _sm
+
         _TestSession = _sm(bind=db_engine, autoflush=False, autocommit=False)
 
         call_count = 0
@@ -447,9 +470,7 @@ class TestBatchSummarize:
             patch("app.services.summarizer.download_pdf", new_callable=AsyncMock),
             patch("app.services.summarizer.call_pi", side_effect=_mock_call_pi),
         ):
-            result = await summarize_batch(
-                db_session, _session_factory=_TestSession
-            )
+            result = await summarize_batch(db_session, _session_factory=_TestSession)
 
         assert result["done"] == 1
         assert result["failed"] == 1
@@ -472,23 +493,32 @@ class TestBatchSummarize:
         assert result["status"] == "conflict"
 
     @pytest.mark.asyncio
-    async def test_task_lock_released(self, db_session, db_engine, mock_pi_output, _patch_paths):
+    async def test_task_lock_released(
+        self, db_session, db_engine, mock_pi_output, _patch_paths
+    ):
         """完成后释放 TaskLock。"""
         from sqlalchemy.orm import sessionmaker as _sm
+
         _TestSession = _sm(bind=db_engine, autoflush=False, autocommit=False)
 
         with (
             patch("app.services.summarizer.download_pdf", new_callable=AsyncMock),
-            patch("app.services.summarizer.call_pi", new_callable=AsyncMock, return_value=mock_pi_output),
+            patch(
+                "app.services.summarizer.call_pi",
+                new_callable=AsyncMock,
+                return_value=mock_pi_output,
+            ),
         ):
-            await summarize_batch(
-                db_session, _session_factory=_TestSession
-            )
+            await summarize_batch(db_session, _session_factory=_TestSession)
 
-        locks = db_session.query(TaskLock).filter(
-            TaskLock.task == "summarize",
-            TaskLock.lock_key == "batch",
-        ).all()
+        locks = (
+            db_session.query(TaskLock)
+            .filter(
+                TaskLock.task == "summarize",
+                TaskLock.lock_key == "batch",
+            )
+            .all()
+        )
         for lock in locks:
             assert lock.status == "finished"
             assert lock.released_at is not None