diff --git a/.gitignore b/.gitignore
index b246617..8d3182d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -54,6 +54,12 @@ review_service/data/reformat_jobs/
 review_service/tools/tectonic
 review_service/data/tectonic-cache/
 review_service/data/format_cache/
+review_service/data/compile_jobs/
+review_service/data/compile_inspect/
+review_service/prewarm.log
 
 # 部署方案文档（含主机凭据，不入库）
 docs/DEPLOY_PAPER_176.md
+
+# 一次性诊断脚本（不入库）
+scripts/debug_compile.py
diff --git a/docs/pr-reports/2026-10-13-p3b-compile-ui.md b/docs/pr-reports/2026-10-13-p3b-compile-ui.md
new file mode 100644
index 0000000..04e661b
--- /dev/null
+++ b/docs/pr-reports/2026-10-13-p3b-compile-ui.md
@@ -0,0 +1,111 @@
+# PR 报告：P3b 编译 PDF Tab（论文重排版面板）
+
+- 日期：2026-10-13
+- 分支：`feature/p3b-compile-ui`（自最新 main 新开；未 commit，按用户约定统一处理）
+- 范围：`ui/` 面板 + store/api 扩展；`review_service/` 仅 restart.sh 调起预热脚本 + 新增
+  scripts/prewarm_tectonic.sh。**后端 compile.py / latex_compile.py（P3a）零改动**；
+  无 sdk/、agent/、vstore/ 改动；无新增依赖。
+
+## 概要
+
+P3b：论文重排版面板启用"编译 PDF" Tab，实现"上传 .tex → 服务器编译 → 下载 PDF"的完整闭环。
+
+## 修改内容
+
+| 文件 | 变更 |
+|---|---|
+| ui/src/components/edu/panels/ReformatPanel.vue | 编译 Tab 状态机：无 job_id 引导 / 编译按钮 / loading 动画 + 首次 1-3 分钟黄条（可关闭）/ 成功 blob URL iframe 预览 + 下载 + 耗时 + 重新编译 / 失败错误摘要 + log 尾 200 行折叠 + 完整 log 下载；按钮不 await，状态全由 store 驱动（切 Tab/切面板编译继续） |
+| ui/src/stores/edu.js | compileStatus/compileResult/compileError/compileLogTail + compilePdfUrl（blob URL，fetch 失败静默回退 pdf_url 直链）+ compileFirstHint；submitCompile（loading 重入保护）/ clearCompile（revoke blob）；重新排版自动 clearCompile |
+| ui/src/api/review.js | CODE_HINTS 增 QUEUE_FULL 固定文案"编译队列已满（最多 5 个任务），请稍后重试"（后端 message 带动态 pending 数，规范统一口径）；compileTex() 为 P3a 已有封装 |
+| review_service/restart.sh | 启动后后台调起 prewarm_tectonic.sh（nohup 非阻塞，日志 prewarm.log） |
+| review_service/scripts/prewarm_tectonic.sh（新增） | 最小 hello.tex 实编译以缓存 TeX 环境。**注**：tectonic v0.17.0 无 `download` 子命令（实测 `no subcommand download`），改用 tools/README 的最小 .tex 预编译法；失败仅告警不影响服务启动 |
+| tests/frontend/unit/edu/reformat.compile.test.js（新增） | 6 个用例（真实 reviewErrorMessage 经 importOriginal 保留，QUEUE_FULL 走 CODE_HINTS） |
+
+## 关键实现决策
+
+1. **无异步轮询**：后端编译同步阻塞返回（单槽队列，常规 10-30s，上限 `compile_queue_limit=5`），
+   无 stage 可显示 → loading 只做不确定时长旋转动画 + 文案说明。
+2. **QUEUE_FULL**：HTTP 429 + 同款信封，http.js 抛 ApiError(code=QUEUE_FULL)；
+   前端 CODE_HINTS 固定文案，报错后"重新编译"按钮立即可用（store finally 解锁）。
+3. **PDF blob URL**：成功后异步 `fetch(pdf_url) → blob → createObjectURL`，
+   预览/下载不暴露后端路径；jsdom/网络失败回退 pdf_url 直链，不阻塞渲染。
+4. **失败 log**：信封 detail = log 尾 200 行（折叠 `<pre>`）；完整 log 下载兜底拼
+   `/api/review/compile/{job_id}/log`（失败信封不带 log_url，但 job_id 即 anchor_id）。
+5. **首次编译提示条**：`compileFirstHint` 在首次 submitCompile 置位，loading 期间显示，
+   可手动关闭；`clearCompile`（重新排版）复位。
+6. **预热命令修正**：任务原文 `./tools/tectonic -X download default` 在钉死版本
+   v0.17.0 不存在——实测后改为最小 .tex 实编译预热（同 tools/README.md 建议）。
+
+## 测试结果
+
+- 后端 pytest（review_service，后端未动）：**113 passed**
+- 前端 vitest 全量：**403 passed / 5 failed**（5F = 既有 labels.js 基线失败
+  benchpanel×4 + Composer pill×1，与本 PR 无关）
+- vitest 新增 reformat.compile.test.js：**6/6 passed**
+  （无 job_id 引导 / 按钮可点 / 编译中+黄条+重入保护 / 成功 iframe+下载+耗时 /
+   失败 log 折叠 / QUEUE_FULL 文案+重试可用）
+- npm run build：✓ 3.12s
+
+## 手工冒烟（8100 真实链路）
+
+- reformat /tmp/opencode/reformat_sample.tex → ok=True job_id=b3631727af68
+- POST /compile {job_id=b3631727af68} → ok=True seconds=0.61 pdf_bytes=3596
+- GET /compile/{cid}/pdf → 200，3596 bytes，application/pdf（file: PDF 1.5）
+- GET /compile/{cid}/log → 200，3533 bytes
+- job_id 不存在 / 格式非法 → VALIDATION 信封
+- 坏 tex（\thisCommandDoesNotExist）→ COMPILE_FAILED + detail 尾 200 行
+  （含 "! Undefined control sequence"）
+- QUEUE_FULL → 429 + 信封（后端路径实测于 P3a；前端文案 vitest 6/6 覆盖）
+- scripts/prewarm_tectonic.sh → exit=0 OK，宏包缓存就绪
+
+## EPS 兼容性修复 v2（2026-10-14 追加）
+
+背景：真实 MDPI 官方 zip（v6.5a）上传编译在 XDV→PDF 阶段失败：
+`xdvipdfmx: image inclusion failed for "Definitions/logo-mdpi.eps"`。
+v1 回退逻辑 gate 在"zip 自带 `*-eps-converted-to.pdf` 预转换版"——真实官方 zip
+**不带**该文件（v1 本地 e2e 通过是因自造样本带了；测试样本与真实样本不一致，教训已记录）。
+
+v2 方案：**不依赖扫描引用与 zip 自带预转换版**，解压后扫描项目内所有 `.eps`
+批量现场转同名 `.pdf`（`latex_compile.process_eps_images`）：
+
+1. 工具优先级 **gs → epstopdf → ps2pdf**（`shutil.which` 逐个 fallback）；gs 命令
+   约束1 强制 `-dSAFER -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -dPDFSETTINGS=/prepress`
+   （-dSAFER 防 EPS 内嵌任意 PostScript 执行）；无新 Python 依赖（subprocess）
+2. 约束2：单文件转换 **15s 超时** → warning 行 `[eps-convert] xxx.eps 转换超时`
+   并跳过该文件继续
+3. 约束3：单文件转换后 >20MB → warning；累计转换产物 >100MB →
+   `InspectError("ZIP_TOO_LARGE")` 中止（信封原样透出该 code）
+4. 约束4：`[eps-convert] {src} → {dst} ({in} → {out}, {elapsed}s, {tool})`
+   写入 `output.log`（正常/超时两条路径都落盘，引擎 log 之后、chatter 之前）
+5. 转换成功 → 显式 `X.eps` 引用字节替换为 `X.pdf`（.tex/.cls/.sty/.cfg/.def 全扫，
+   不碰编码、不改正文）；无扩展名引用 `{.../X}` 由 graphicx 命中新 `X.pdf`
+   （解析顺序 .pdf→…→.eps，规避 .eps）
+6. 全工具失败 → log 行 `[eps-convert] 全部工具失败，图片 xxx.eps 未转换` →
+   编译自然失败 → 前端提示「项目包含 EPS 图片，服务器转换失败，请转成 PDF/PNG 后重试」
+
+真实官方 zip 实测（`scripts/debug_compile.py` 重打包 fba37ae3c853 现场 + 8100 HTTP 链路）：
+
+| 指标 | 结果 |
+|---|---|
+| 转换 EPS 数 | 2（logo-mdpi.eps、logo-updates.eps，均 gs） |
+| 每个耗时 | 563678→13057B 0.27s；287998→16588B 0.27s（合计 0.54s） |
+| 显式引用改写 | 1 个文件（Definitions/mdpi.cls） |
+| 编译 | 2.83s（debug 脚本）/ 2.99s（HTTP） |
+| 产出 PDF | 70688 / 70687 bytes，7 页，`%PDF-` ✓ |
+
+测试：pytest **175 passed**（原 169 全保留，移除 3 个 v1 语义已变的 EPS 用例，
+新增 9 个 v2 用例：preset 免转换 / 真实 gs 转换 / 工具 fallback / 全失败 /
+超时 warning / 20MB warning / 100MB 中止 / 端到端成功 / 友好报错）。
+
+教训（关键）：**外部下载的模板类场景，e2e 必须用真实官方文件**——v1 的自造样本
+带了预转换版，真实官方 zip 不带，导致修复上线后失效。
+
+## 部署验证（部署后执行）
+
+```bash
+bash review_service/restart.sh
+# 观察日志：prewarm_tectonic.sh 后台跑（非阻塞），prewarm.log 出现 "[prewarm] OK"
+# 浏览器 → 教育科研 → 论文自动重排版 → 上传 .tex → 选期刊 → 重排版
+#        → 切"编译 PDF" → 点编译
+# 期望：首次 1-3 分钟（若预热已完成则秒级）、后续秒回；失败可见 log 尾 200 行
+```
diff --git a/review_service/app/config.py b/review_service/app/config.py
index 6485685..8b57c5b 100644
--- a/review_service/app/config.py
+++ b/review_service/app/config.py
@@ -62,6 +62,23 @@ class Settings(BaseSettings):
     compile_queue_limit: int = 5                # 等待槽位上限（>5 → QUEUE_FULL 429）
     compile_retention_days: int = 7             # 编译产物保留天数（后台清扫）
 
+    # ---- LaTeX 项目 zip 编译（P4：两段式 inspect + run）----
+    max_zip_bytes: int = 50 * 1024 * 1024       # 上传 zip 上限 50MB
+    max_extract_bytes: int = 200 * 1024 * 1024  # 单项目解压总大小硬顶 200MB（实写字节计数）
+    max_zip_entries: int = 2000                 # 条目数上限（预扫第一件事）
+    max_zip_entry_bytes: int = 50 * 1024 * 1024 # 单条目解压上限 50MB
+    max_zip_ratio: float = 100.0                # 单条目压缩比 file_size/compress_size 上限
+    max_zip_path_depth: int = 16                # 路径深度上限（深层嵌套拒绝）
+    max_zip_path_len: int = 200                 # 单条目路径长度上限
+    compile_project_timeout_s: float = 120.0    # 项目 zip 编译墙钟上限（单文件仍 compile_timeout_s）
+    inspect_dir: str = "data/compile_inspect"   # zip 解压暂存（1 小时 TTL，相对 review_service/）
+    inspect_ttl_s: int = 3600                   # inspect 暂存过期秒数
+    inspect_sweep_interval_s: float = 300.0     # inspect 后台清扫周期（lifespan 定时任务）
+    compile_jobs_dir: str = "data/compile_jobs" # 项目编译产物（pdf/log/meta，7 天 sweep）
+    failed_project_ttl_s: int = 24 * 3600       # 编译失败保留 project/ 现场秒数（诊断用）
+    keep_failed_projects: bool = False          # 失败 project/ 永久保留（调试开关；
+                                                # 亦读裸环境变量 KEEP_FAILED_PROJECTS=1）
+
     @property
     def _service_root(self) -> "Path":
         # review_service/app/config.py → review_service/（相对本文件定位，不依赖 cwd）
@@ -91,10 +108,21 @@ class Settings(BaseSettings):
         return p if p.is_absolute() else self._service_root / p
 
     @property
-    def tectonic_cache_abs(self) -> "Path":
+    def tectonic_cache_abs(self) -> Path:
         p = Path(self.tectonic_cache_dir)
         return p if p.is_absolute() else self._service_root / p
 
+    @property
+    def inspect_dir_abs(self) -> Path:
+        p = Path(self.inspect_dir)
+        return p if p.is_absolute() else self._service_root / p
+
+    @property
+    def compile_jobs_dir_abs(self) -> Path:
+        p = Path(self.compile_jobs_dir)
+        return p if p.is_absolute() else self._service_root / p
+
+
     @property
     def vstore_base(self) -> str:
         return self.vstore_base_url.rstrip("/")
diff --git a/review_service/app/main.py b/review_service/app/main.py
index 6d3b2c6..c378384 100644
--- a/review_service/app/main.py
+++ b/review_service/app/main.py
@@ -61,6 +61,33 @@ def create_app() -> FastAPI:
             sweep_expired()
         except Exception:  # noqa: BLE001
             logger.warning("compile sweep 启动清扫失败（忽略）", exc_info=True)
+        # P4：inspect 暂存（1h TTL）+ 项目编译产物（7 天）启动清扫
+        try:
+            from .services.latex_compile import (
+                sweep_compile_jobs_expired,
+                sweep_inspect_expired,
+            )
+            sweep_inspect_expired()
+            sweep_compile_jobs_expired()
+        except Exception:  # noqa: BLE001
+            logger.warning("P4 sweep 启动清扫失败（忽略）", exc_info=True)
+        # P4：inspect 暂存后台定时清扫（默认 300s；补充 1——上传不点编译不堆积）
+        sweep_task: asyncio.Task[None] | None = None
+        try:
+            from .services.latex_compile import sweep_inspect_expired as _sweep_insp
+
+            async def _inspect_sweep_loop() -> None:
+                interval = get_settings().inspect_sweep_interval_s
+                while True:
+                    await asyncio.sleep(interval)
+                    try:
+                        await asyncio.to_thread(_sweep_insp)
+                    except Exception:  # noqa: BLE001
+                        logger.warning("inspect 后台清扫失败（忽略）", exc_info=True)
+
+            sweep_task = asyncio.create_task(_inspect_sweep_loop())
+        except Exception:  # noqa: BLE001
+            logger.warning("inspect 后台清扫任务启动失败（忽略）", exc_info=True)
         # journal_directory 自动 seed：空表才导（xlsx 解析约 1-3s，不堵 event loop；
         # 路径沿用 db.path 注入链——生产=settings.db_path_abs，测试=tmp）
         if settings.seed_on_startup:
@@ -88,6 +115,14 @@ def create_app() -> FastAPI:
         try:
             yield
         finally:
+            if sweep_task is not None:
+                sweep_task.cancel()
+                try:
+                    await sweep_task
+                except asyncio.CancelledError:
+                    pass
+                except Exception:  # noqa: BLE001
+                    pass
             await close_db()
 
     app.router.lifespan_context = _lifespan
diff --git a/review_service/app/routers/compile.py b/review_service/app/routers/compile.py
index 86d61ea..12d1ae5 100644
--- a/review_service/app/routers/compile.py
+++ b/review_service/app/routers/compile.py
@@ -132,6 +132,107 @@ async def compile_tex(
     )
 
 
+# ================================================================ P4：项目 zip（两段式）
+
+def _p4_error(code: str, message: str, detail: str = "",
+              compile_id: str | None = None,
+              log_url: str | None = None) -> CompileResponse:
+    """P4 错误信封（补充 3：失败也带 compile_id + log_url，前端可下载完整 log）。"""
+    err: dict[str, Any] = {"code": code, "message": message, "degraded": False}
+    if detail:
+        err["detail"] = detail
+    return CompileResponse(
+        ok=False, compile_id=compile_id, log_url=log_url, error=err)
+
+
+def _project_pdf_url(cid: str) -> str:
+    return f"/api/review/compile/zip/{cid}/pdf"
+
+
+def _project_log_url(cid: str) -> str:
+    return f"/api/review/compile/zip/{cid}/log"
+
+
+@router.post("/compile/inspect", response_model=CompileResponse)
+async def inspect_zip_project(
+    file: UploadFile = File(..., description="LaTeX 项目 zip（含 main.tex/.cls/图片/.bib）"),
+) -> CompileResponse:
+    """两段式之①：安全解压 + 主文件识别 → job_id（1 小时 TTL，run 前不占编译队列）。
+
+    暂用 request.body() 整体缓冲（≤50MB）；Phase 2 改流式上传
+    """
+    settings = get_settings()
+    filename = file.filename or "project.zip"
+    if Path(filename).name != filename or ".." in filename:
+        return _p4_error("VALIDATION", "非法文件名")
+    if not filename.lower().endswith(".zip"):
+        return _p4_error("VALIDATION", "仅支持 .zip 文件")
+    # 暂用 request.body() 整体缓冲（≤50MB）；Phase 2 改流式上传
+    content = await file.read()
+    if not content:
+        return _p4_error("VALIDATION", "上传文件为空")
+    if len(content) > settings.max_zip_bytes:
+        return _p4_error(
+            "VALIDATION",
+            f"zip 超过 {settings.max_zip_bytes // (1024 * 1024)}MB 上限")
+    try:
+        meta = await lc.inspect_zip(content)
+    except lc.InspectError as exc:
+        return _p4_error(exc.code, exc.message)
+    return CompileResponse(ok=True, meta=meta)
+
+
+class RunZipRequest(BaseModel):
+    job_id: str
+
+
+@router.post("/compile/run", response_model=CompileResponse)
+async def run_zip_compile(payload: RunZipRequest) -> CompileResponse:
+    """两段式之②：原子消费 inspect（rename 防并发双跑）→ tectonic 编译 → pdf/log。
+
+    队列/工具失败发生在消费**之前** → inspect 保留可重试；
+    编译失败（COMPILE_FAILED/TIMEOUT）信封仍带 compile_id + log_url（补充 3）。
+    """
+    jid = (payload.job_id or "").strip()
+    if not _CID_RE.fullmatch(jid):
+        return _p4_error(
+            "VALIDATION", "job_id 格式非法（应为 12 位 hex）")
+    try:
+        result = await lc.compile_project_job(jid)
+    except lc.InspectError as exc:
+        return _p4_error(exc.code, exc.message)
+    except lc.ToolUnavailableError as exc:
+        return _p4_error("TOOL_UNAVAILABLE", str(exc))
+    except lc.QueueFullError as exc:
+        # 队列满发生在 consume_inspect 之前 → job 未消费，前端可直接重试
+        return JSONResponse(
+            status_code=429,
+            content={
+                "ok": False,
+                "compile_id": None, "pdf_url": None, "log_url": None, "meta": None,
+                "error": {"code": "QUEUE_FULL", "message": str(exc),
+                          "degraded": False},
+            },
+        )
+    except lc.CompileError as exc:
+        # 补充 3：失败也带 compile_id + log_url（cid 由 compile_project_job 附加）
+        cid = getattr(exc, "compile_id", None)
+        return _p4_error(
+            exc.code, str(exc), detail=exc.log_tail,
+            compile_id=cid,
+            log_url=_project_log_url(cid) if cid else None)
+    return CompileResponse(
+        ok=True,
+        compile_id=result["compile_id"],
+        pdf_url=_project_pdf_url(result["compile_id"]),
+        log_url=_project_log_url(result["compile_id"]),
+        meta=json.loads((lc.compile_job_dir(result["compile_id"]) / "meta.json")
+                        .read_text("utf-8"))
+        if (lc.compile_job_dir(result["compile_id"]) / "meta.json").is_file()
+        else {"compile_id": result["compile_id"], "seconds": result["seconds"]},
+    )
+
+
 def _cid_dir(cid: str) -> Path | None:
     if not _CID_RE.fullmatch(cid or ""):
         return None
@@ -139,6 +240,63 @@ def _cid_dir(cid: str) -> Path | None:
     return d if d.is_dir() else None
 
 
+def _zip_cid_dir(cid: str) -> Path | None:
+    """P4 项目产物目录 data/compile_jobs/{cid}/（独立于 P3a reformat_dir 树）。"""
+    if not _CID_RE.fullmatch(cid or ""):
+        return None
+    d = lc.compile_job_dir(cid)
+    return d if d.is_dir() else None
+
+
+@router.get("/compile/zip/{compile_id}", response_model=CompileResponse)
+async def get_zip_compile(compile_id: str) -> CompileResponse:
+    cdir = _zip_cid_dir(compile_id)
+    meta_path = cdir / "meta.json" if cdir else None
+    if meta_path is None or not meta_path.is_file():
+        return _p4_error("NOT_FOUND", "编译任务不存在或已过期，请重新编译")
+    try:
+        meta = json.loads(meta_path.read_text("utf-8"))
+    except (OSError, ValueError):
+        return _p4_error("NOT_FOUND", "编译产物损坏，请重新编译")
+    return CompileResponse(
+        ok=True,
+        compile_id=compile_id,
+        pdf_url=_project_pdf_url(compile_id),
+        log_url=_project_log_url(compile_id),
+        meta=meta,
+    )
+
+
+@router.get("/compile/zip/{compile_id}/pdf", response_model=None)
+async def download_zip_pdf(compile_id: str) -> FileResponse | JSONResponse:
+    cdir = _zip_cid_dir(compile_id)
+    pdf = cdir / "output.pdf" if cdir else None
+    if pdf is None or not pdf.is_file():
+        return JSONResponse(
+            status_code=200,
+            content={"ok": False, "error": {
+                "code": "NOT_FOUND", "message": "PDF 不存在或已过期",
+                "degraded": False}},
+        )
+    return FileResponse(pdf, media_type="application/pdf",
+                        filename=f"{compile_id}.pdf")
+
+
+@router.get("/compile/zip/{compile_id}/log", response_model=None)
+async def download_zip_log(compile_id: str) -> PlainTextResponse | JSONResponse:
+    """补充 3：成功/失败都可下载 output.log。"""
+    cdir = _zip_cid_dir(compile_id)
+    log = cdir / "output.log" if cdir else None
+    if log is None or not log.is_file():
+        return JSONResponse(
+            status_code=200,
+            content={"ok": False, "error": {
+                "code": "NOT_FOUND", "message": "日志不存在或已过期",
+                "degraded": False}},
+        )
+    return PlainTextResponse(log.read_text("utf-8", errors="replace"))
+
+
 @router.get("/compile/{compile_id}", response_model=CompileResponse)
 async def get_compile(compile_id: str) -> CompileResponse:
     cdir = _cid_dir(compile_id)
diff --git a/review_service/app/services/latex_compile.py b/review_service/app/services/latex_compile.py
index b396769..ab101a0 100644
--- a/review_service/app/services/latex_compile.py
+++ b/review_service/app/services/latex_compile.py
@@ -1,4 +1,4 @@
-"""services/latex_compile.py —— tectonic 编译 .tex → PDF（P3a）。
+"""services/latex_compile.py —— tectonic 编译 .tex → PDF（P3a + P4 项目 zip）。
 
 隔离与安全（对齐设计清单）：
   1. 一编译一目录：{reformat_dir}/{anchor_id}/compile/（input.tex/output.pdf/output.log/meta.json）
@@ -9,6 +9,13 @@
   6. 产物 PDF > max_compile_pdf_bytes → 删文件 + OutputTooLargeError
   7. 启动/每次编译前机会性清扫 retention_days 天前的 job 目录（只删 12 位 hex 锚点目录）
 
+P4 项目 zip（两段式 inspect + run，与 P3a 共享单槽队列/清扫/错误类）：
+  - inspect_zip：安全解压（zip_safety）→ 主文件识别 → compile_inspect/{job_id}/（1h TTL）
+  - compile_project_job：原子 rename 消费 inspect → compile_jobs/{cid}/ → tectonic →
+    finally 删 project 树（只留 output.pdf/output.log/meta.json）
+  - 失败也保证 output.log 落盘（补充 3）；classify_compile_error 给出用户友好文案
+  - P3a 单文件路径（prepare_input/compile_tex/_run_once）零改动
+
 tectonic 二进制缺失 → ToolUnavailableError（路由层回安装指引）。
 """
 from __future__ import annotations
@@ -20,7 +27,10 @@ import os
 import re
 import shutil
 import signal
+import subprocess
 import time
+import uuid
+from dataclasses import dataclass
 from datetime import datetime, timezone
 from pathlib import Path
 from typing import Any
@@ -40,6 +50,9 @@ _pending = 0
 
 class CompileError(Exception):
     """编译失败（含 log 尾）。code ∈ {COMPILE_FAILED, TIMEOUT, OUTPUT_TOO_LARGE}。"""
+    # compile_id：P4 项目编译失败时由 compile_project_job 附加（P3a 单文件为 None），
+    # 路由层据此在失败信封里回 compile_id + log_url（补充 3）。
+    compile_id: str | None = None
 
     def __init__(self, code: str, message: str, log_tail: str = "") -> None:
         super().__init__(message)
@@ -234,3 +247,623 @@ def sweep_expired() -> int:
         logger.info("compile sweep: 清理 %d 个过期任务目录（>%d 天）",
                     removed, settings.compile_retention_days)
     return removed
+
+
+# ================================================================ P4：项目 zip（inspect + run）
+#
+# 与 P3a 共用：_lock/_pending 单槽队列、_ensure_tool、CompileError/QueueFullError/
+# ToolUnavailableError、_kill_group、_log_tail、12-hex 目录与 mtime sweep 约定。
+# P3a 函数（prepare_input/compile_tex/_run_once）零改动。
+
+
+class InspectError(Exception):
+    """inspect/消费阶段业务失败。
+    code ∈ {VALIDATION, ZIP_UNSAFE, ZIP_BOMB, ZIP_INVALID, ZIP_TOO_LARGE}。
+    """
+
+    def __init__(self, code: str, message: str) -> None:
+        super().__init__(message)
+        self.code = code
+        self.message = message
+
+
+_DOCCLASS_RE = re.compile(r"(?<!\\)\\documentclass\s*(\[|\{)")
+_IMG_LIKE_EXT = {".png", ".jpg", ".jpeg", ".pdf", ".eps", ".svg"}
+
+
+def inspect_root() -> Path:
+    """data/compile_inspect/（1 小时 TTL 暂存根，存在性由调用方按需 mkdir）。"""
+    return get_settings().inspect_dir_abs
+
+
+def compile_job_dir(cid: str) -> Path:
+    """data/compile_jobs/{cid}/（产物根；不走 reformat_dir，P4 独立清扫）。"""
+    return get_settings().compile_jobs_dir_abs / cid
+
+
+def _strip_tex_comments(text: str) -> str:
+    """粗剥注释：行内 % 截断（\\% 误伤可接受，MVP 设计决策）。"""
+    return "\n".join(ln.split("%", 1)[0] for ln in text.splitlines())
+
+
+def _read_tex(path: Path) -> str:
+    """utf-8 → gb18030 → latin-1 降级读（中文模板常见 GBK）。"""
+    raw = path.read_bytes()
+    for enc in ("utf-8", "gb18030", "latin-1"):
+        try:
+            return raw.decode(enc)
+        except UnicodeDecodeError:
+            continue
+    return raw.decode("utf-8", errors="replace")
+
+
+def find_main_tex(project_dir: Path) -> tuple[str | None, list[str], int]:
+    """主文件识别（补充 2）→ (main_rel | None, 含 documentclass 的相对路径清单, .tex 总数)。
+
+    场景：唯一候选 → main；0 个 .tex / 0 候选 / ≥2 候选 → None + 清单（调用方报错）。
+    返回的相对路径用 posix 分隔符（与 zip 条目名一致）。
+    """
+    tex_files = sorted(
+        p for p in project_dir.rglob("*")
+        if p.is_file() and p.suffix.lower() == ".tex"
+    )
+    if not tex_files:
+        return None, [], 0
+    candidates: list[str] = []
+    for p in tex_files:
+        if _DOCCLASS_RE.search(_strip_tex_comments(_read_tex(p))):
+            candidates.append(p.relative_to(project_dir).as_posix())
+    if len(candidates) == 1:
+        return candidates[0], candidates, len(tex_files)
+    return None, candidates, len(tex_files)
+
+
+_MISSING_FILE_RE = re.compile(
+    r"LaTeX Error: File [`']([^`']+)' not found"
+    r"|I can't find file [`']([^`']+)'"
+)
+_IMG_INCLUSION_RE = re.compile(r"""image inclusion failed for ["']([^"']+)["']""")
+
+_EPS_CONVERTED_SUFFIX = "-eps-converted-to.pdf"
+_REF_TEXT_EXTS = {".tex", ".cls", ".sty", ".cfg", ".def"}
+
+# EPS 现场转换 v2（约束 1-4）：xdvipdfmx 无法内嵌 EPS → 解压后批量转同名 .pdf
+_EPS_CONVERT_TIMEOUT_S = 15                      # 约束2：单文件转换超时（秒）
+_EPS_CONVERT_MAX_FILE = 20 * 1024 * 1024         # 约束3：单文件转换后上限（warning）
+_EPS_CONVERT_MAX_TOTAL = 100 * 1024 * 1024       # 约束3：转换产物总上限（中止）
+
+
+def _eps_tool_commands(eps: Path, pdf: Path) -> list[tuple[str, list[str]]]:
+    """转换工具优先级：gs（约束1 必须 -dSAFER）→ epstopdf → ps2pdf；只列 PATH 里可用的。"""
+    tools: list[tuple[str, list[str]]] = []
+    gs = shutil.which("gs")
+    if gs:
+        tools.append(("gs", [
+            gs, "-dSAFER", "-dNOPAUSE", "-dBATCH", "-sDEVICE=pdfwrite",
+            "-dPDFSETTINGS=/prepress",
+            f"-sOutputFile={pdf}", str(eps),
+        ]))
+    epstopdf = shutil.which("epstopdf")
+    if epstopdf:
+        # epstopdf 默认输出到同目录同名 .pdf（即 pdf 路径）
+        tools.append(("epstopdf", [epstopdf, str(eps)]))
+    ps2pdf = shutil.which("ps2pdf")
+    if ps2pdf:
+        tools.append(("ps2pdf", [ps2pdf, str(eps), str(pdf)]))
+    return tools
+
+
+def _convert_eps_file(eps: Path, pdf: Path) -> tuple[str, str]:
+    """逐工具尝试把 eps 转成同名 pdf → ("ok", tool) | ("timeout", tool) | ("fail", "")。
+
+    约束2：单工具 15s 超时 → 放弃该文件（继续下一个 eps，不再试后续工具）。
+    成功判定：退出后 pdf 存在且非空（防半成品）。
+    """
+    tools = _eps_tool_commands(eps, pdf)
+    if not tools:
+        return "fail", ""
+    for tool, cmd in tools:
+        pdf.unlink(missing_ok=True)  # 清上一个工具的半成品
+        try:
+            subprocess.run(
+                cmd, timeout=_EPS_CONVERT_TIMEOUT_S,
+                stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL,
+                check=False,
+            )
+        except subprocess.TimeoutExpired:
+            pdf.unlink(missing_ok=True)
+            return "timeout", tool
+        except OSError:
+            continue
+        if pdf.is_file() and pdf.stat().st_size > 0:
+            return "ok", tool
+    pdf.unlink(missing_ok=True)
+    return "fail", ""
+
+
+def process_eps_images(project: Path) -> list[str]:
+    """EPS 兼容 v2：解压后**批量转换项目内所有 .eps**（不依赖 zip 自带预转换版）。
+
+    对每个 X.eps（原 .eps 保留）：
+      1. 已有同名 X.pdf → 跳过转换（引用照常切换为 .pdf）；
+      2. zip 自带 X-eps-converted-to.pdf 预转换版 → 复制为 X.pdf（免转换）；
+      3. 否则现场转换：gs(-dSAFER) → epstopdf → ps2pdf 逐个 fallback（约束1），
+         单文件 15s 超时 → warning 后继续下一个（约束2）。
+    转换成功 → 显式 `X.eps` 引用字节替换为 `X.pdf`（.tex/.cls/.sty/.cfg/.def 全扫，
+    纯字节 ASCII/UTF-8 替换不碰编码）；无扩展名引用 `{.../X}` 由 graphicx 直接
+    命中新生成的 X.pdf（解析顺序 .pdf→…→.eps）。
+    约束3：单文件转换后 >20MB → warning；转换产物累计 >100MB → 抛
+    InspectError("ZIP_TOO_LARGE") 中止；约束4：返回值为写入 output.log 的
+    "[eps-convert]" 日志行（由 _run_project 落盘）。
+    → 日志行列表（无 .eps 项目 → 空）。
+    """
+    eps_files = sorted(
+        p for p in project.rglob("*")
+        if p.is_file() and p.suffix.lower() == ".eps"
+    )
+    if not eps_files:
+        return []
+    lines: list[str] = []
+    handled: list[tuple[bytes, bytes]] = []
+    total_out = 0
+
+    def _rel(p: Path) -> str:
+        return p.relative_to(project).as_posix()
+
+    for eps in eps_files:
+        pdf = eps.with_suffix(".pdf")
+        src_rel, dst_rel = _rel(eps), _rel(pdf)
+        if pdf.is_file():
+            handled.append((eps.name.encode("utf-8"), pdf.name.encode("utf-8")))
+            continue
+        converted = eps.with_name(eps.stem + _EPS_CONVERTED_SUFFIX)
+        if converted.is_file():
+            t0 = time.monotonic()
+            shutil.copyfile(converted, pdf)
+            elapsed = time.monotonic() - t0
+            tool = "preset"
+        else:
+            t0 = time.monotonic()
+            status, tool = _convert_eps_file(eps, pdf)
+            elapsed = time.monotonic() - t0
+            if status == "timeout":
+                lines.append(f"[eps-convert] {src_rel} 转换超时")  # 约束2
+                continue
+            if status != "ok":
+                lines.append(
+                    f"[eps-convert] 全部工具失败，图片 {src_rel} 未转换")
+                continue
+        # 约束4：转换日志（成功路径）
+        lines.append(
+            f"[eps-convert] {src_rel} → {dst_rel} "
+            f"({eps.stat().st_size} → {pdf.stat().st_size}, "
+            f"{elapsed:.2f}s, {tool})")
+        size_out = pdf.stat().st_size
+        if size_out > _EPS_CONVERT_MAX_FILE:                        # 约束3
+            lines.append(
+                f"[eps-convert] 警告：{dst_rel} 转换后 {size_out} 字节"
+                f"超过 {_EPS_CONVERT_MAX_FILE // (1024 * 1024)}MB 上限")
+        total_out += size_out
+        if total_out > _EPS_CONVERT_MAX_TOTAL:                      # 约束3
+            raise InspectError(
+                "ZIP_TOO_LARGE",
+                f"EPS 转换后总大小超过 {_EPS_CONVERT_MAX_TOTAL // (1024 * 1024)}MB 上限"
+                f"（已达 {total_out // (1024 * 1024)}MB），请压缩图片后重试")
+        handled.append((eps.name.encode("utf-8"), pdf.name.encode("utf-8")))
+
+    # 显式 .eps 引用 → .pdf（仅对转换成功者；失败的保持 .eps → 编译兜底友好报错）
+    changed = 0
+    if handled:
+        for f in project.rglob("*"):
+            if not (f.is_file() and f.suffix.lower() in _REF_TEXT_EXTS):
+                continue
+            data = f.read_bytes()
+            new = data
+            for old_b, new_b in handled:
+                new = new.replace(old_b, new_b)
+            if new != data:
+                f.write_bytes(new)
+                changed += 1
+    if changed:
+        lines.append(f"[eps-convert] {changed} 个文件的显式 .eps 引用已改写为 .pdf")
+    if lines:
+        logger.info("eps v2: %s", " | ".join(lines))
+    return lines
+
+
+def _append_eps_lines(log_path: Path, lines: list[str] | None) -> None:
+    """约束4：把 [eps-convert] 转换日志写入 output.log（引擎 log 之后、chatter 之前）。"""
+    if not lines:
+        return
+    with log_path.open("a", encoding="utf-8") as fh:
+        fh.write("\n".join(lines) + "\n")
+
+
+def classify_compile_error(log_tail: str) -> str:
+    """COMPILE_FAILED 的日志 → 用户友好文案（Q4/§4.4）。"""
+    m = _MISSING_FILE_RE.search(log_tail)
+    if m:
+        name = next(g for g in m.groups() if g)
+        ext = Path(name).suffix.lower()
+        if ext == ".cls":
+            return f"项目缺少 {name}，请从期刊官网下载模板后重新上传"
+        if ext in (".sty", ".def", ".clo"):
+            return f"缺少 LaTeX 宏包 {name}，可能是模板不完整"
+        if ext in _IMG_LIKE_EXT:
+            return f"图片 {name} 未在 zip 里，请检查引用路径与大小写"
+        if ext == ".bib":
+            return f"缺少文献库 {name}，请确认 .bib 已包含在 zip 中"
+        return f"编译找不到文件 {name}，请检查 zip 内文件路径"
+    m = _IMG_INCLUSION_RE.search(log_tail)
+    if m:
+        name = m.group(1)
+        if Path(name).suffix.lower() == ".eps":
+            # EPS v2 已现场转换；仍失败 = 服务器转换没成功（工具缺失/超时/格式怪异）
+            return "项目包含 EPS 图片，服务器转换失败，请转成 PDF/PNG 后重试"
+        return f"图片 {name} 无法内嵌，请检查图片格式与路径（建议使用 PDF/PNG）"
+    if re.search(r"Emergency stop|Undefined control sequence", log_tail):
+        return "LaTeX 源码有语法错误，请展开日志定位出错行"
+    return "编译失败，请查看日志定位 LaTeX 错误"
+
+
+async def inspect_zip(zip_bytes: bytes) -> dict[str, Any]:
+    """两段式之①：安全解压 + 主文件识别 + 落盘 inspect 暂存（1h TTL）。
+
+    → {job_id, main, stats{files,tex,images,cls,bib,other,bytes}, skipped[], skipped_count}
+    失败抛 InspectError（路由层转信封）；任何失败 → rmtree 暂存目录，磁盘零残留。
+    """
+    from .zip_safety import ZipSafetyError, safe_extract
+
+    settings = get_settings()
+    sweep_inspect_expired()          # 机会性清扫（同 P3a 模式）
+    job_id = uuid.uuid4().hex[:12]
+    jdir = inspect_root() / job_id
+    project = jdir / "project"
+    try:
+        try:
+            result = await asyncio.to_thread(safe_extract, zip_bytes, project, settings)
+        except ZipSafetyError as exc:
+            raise InspectError(exc.code, exc.message) from exc
+        main, candidates, tex_total = find_main_tex(project)
+        if tex_total == 0:
+            raise InspectError("VALIDATION", "zip 中没有 .tex 文件")
+        if not candidates:
+            raise InspectError(
+                "VALIDATION", "未找到含 \\documentclass 的 .tex 文件")
+        if main is None:
+            shown = ", ".join(Path(c).name for c in candidates)
+            raise InspectError(
+                "VALIDATION",
+                f"检测到多个主文件（{shown}），请合并为单一入口后重新上传")
+        meta = {
+            "job_id": job_id,
+            "main": main,
+            "stats": {
+                "files": result.files, "tex": result.tex, "images": result.images,
+                "cls": result.cls, "bib": result.bib, "other": result.other,
+                "bytes": result.bytes,
+            },
+            "skipped": [{"name": s.name, "reason": s.reason} for s in result.skipped],
+            "skipped_count": result.skipped_count,
+            "created_at": datetime.now(timezone.utc).isoformat(timespec="seconds"),
+        }
+        jdir.mkdir(parents=True, exist_ok=True)
+        (jdir / "inspect.json").write_text(
+            json.dumps(meta, ensure_ascii=False, indent=2), encoding="utf-8")
+        return meta
+    except BaseException:
+        shutil.rmtree(jdir, ignore_errors=True)
+        raise
+
+
+def consume_inspect(job_id: str, cid: str) -> tuple[Path, dict[str, Any]]:
+    """两段式之②前置：**原子 rename 消费** inspect 暂存 → compile_jobs/{cid}/project。
+
+    并发正确性（防同一 job 双跑）：
+      os.rename(src, dst) 在同一文件系统内是原子的，且 src 不存在 → FileNotFoundError。
+      两个并发 run 拿同一 job_id 时，只有一个能成功 rename；后到者拿到
+      FileNotFoundError → 路由层转 VALIDATION"已过期/不存在"，**绝不可能双编译**。
+      inspect 残壳（inspect.json）在 rename 成功后立即删除，也杜绝二跑读到半状态。
+    """
+    settings = get_settings()
+    if not _ANCHOR_ID_RE.fullmatch(job_id or ""):
+        raise InspectError("VALIDATION", "job_id 格式非法（应为 12 位 hex）")
+    src_root = inspect_root() / job_id
+    meta_path = src_root / "inspect.json"
+    src_project = src_root / "project"
+    if not (meta_path.is_file() and src_project.is_dir()):
+        raise InspectError(
+            "VALIDATION", "上传任务不存在或已过期（1 小时），请重新上传 zip")
+    try:
+        meta = json.loads(meta_path.read_text("utf-8"))
+    except (OSError, ValueError) as exc:
+        raise InspectError(
+            "VALIDATION", "上传任务数据损坏，请重新上传 zip") from exc
+    dst_root = compile_job_dir(cid)
+    dst_project = dst_root / "project"
+    dst_root.mkdir(parents=True, exist_ok=True)
+    try:
+        os.rename(src_project, dst_project)
+    except FileNotFoundError as exc:
+        raise InspectError(
+            "VALIDATION", "上传任务不存在或已过期（1 小时），请重新上传 zip") from exc
+    except OSError as exc:  # 跨设备等罕见失败 → 保持 inspect 原样可重试
+        raise InspectError(
+            "VALIDATION", "任务消费失败，请重试或重新上传") from exc
+    shutil.rmtree(src_root, ignore_errors=True)  # 消费成功 → 删残壳
+    return dst_project, meta
+
+
+async def compile_project_job(job_id: str) -> dict[str, Any]:
+    """两段式之②：原子消费 inspect → tectonic 编译 → 产物留 pdf/log/meta。
+
+    队列/工具检查**先于消费**（inspect 保留 → 失败可直接重试）；
+    EPS v2：解压后批量转换所有 .eps → 同名 .pdf（gs -dSAFER → epstopdf → ps2pdf，
+    单文件 15s 超时；产物累计 >100MB → ZIP_TOO_LARGE 中止），转换日志进 output.log；
+    成功 → 立即删 project/；失败（COMPILE_FAILED/TIMEOUT）→ **保留 project/ 现场 24h**
+    供诊断（sweep_compile_jobs_expired 按 failed_project_ttl_s 清理；
+    KEEP_FAILED_PROJECTS=1 永久保留）；
+    失败必落完整 output.log（含 --print 的 XDV→PDF 阶段输出，补充 3）。
+
+    → {compile_id, pdf_path, log_path, seconds, pdf_bytes}
+    """
+    global _pending
+    settings = get_settings()
+    _ensure_tool()                    # 快速失败：不消费 inspect、不占队列
+    sweep_inspect_expired()
+    sweep_compile_jobs_expired()
+    if _pending >= settings.compile_queue_limit:
+        raise QueueFullError(
+            f"编译队列已满（{_pending} 个任务排队），请稍后重试")
+    _pending += 1                     # 占位先于消费：QUEUE_FULL 时 inspect 未动
+    cid = uuid.uuid4().hex[:12]
+    project: Path | None = None
+    meta: dict[str, Any] = {}
+    try:
+        project, meta = await asyncio.to_thread(consume_inspect, job_id, cid)
+        try:
+            # EPS v2：解压后批量转换所有 .eps → 同名 .pdf 并切换显式引用
+            # （不依赖 zip 自带预转换版；失败现场保留转换后的改写结果）
+            eps_lines = await asyncio.to_thread(process_eps_images, project)
+            async with _lock:
+                result = await _run_project(
+                    cid, project, str(meta.get("main", "")), eps_lines)
+            # 成功 → 立即清理 project 树（失败路径在 finally 保留现场）
+            shutil.rmtree(project, ignore_errors=True)
+            project = None
+            return result
+        except CompileError as exc:
+            # 补充 3：失败信封也要能下载 log → 异常携带产物 cid（log 落盘于 compile_jobs/{cid}/）
+            exc.compile_id = cid
+            raise
+    finally:
+        _pending -= 1
+        if project is not None:
+            # 编译失败 → 保留 compile_jobs/{cid}/project/ 现场供诊断；
+            # touch 目录使 24h 保留窗从失败时刻起算
+            try:
+                os.utime(project, None)
+            except OSError:
+                pass
+
+
+async def _run_project(
+    cid: str,
+    project: Path,
+    main_rel: str,
+    eps_log_lines: list[str] | None = None,
+) -> dict[str, Any]:
+    """单槽内执行项目编译：cwd=main 所在目录（相对路径解析），outdir=compile_jobs/{cid}。
+
+    eps_log_lines：EPS v2 的 [eps-convert] 转换日志（约束4），正常/超时两条路径
+    都会写进 output.log（引擎 log 之后、chatter/[timeout] 之前）。
+    """
+    settings = get_settings()
+    outdir = compile_job_dir(cid)
+    outdir.mkdir(parents=True, exist_ok=True)
+    main_path = project / main_rel
+    if not main_rel or not main_path.is_file():
+        raise InspectError("VALIDATION", "主文件缺失，请重新上传 zip")
+    cwd = main_path.parent
+    stem = main_path.stem
+
+    env = dict(os.environ)
+    env["TECTONIC_CACHE_DIR"] = str(settings.tectonic_cache_abs)
+    # --print：打印引擎完整 chatter（含 XDV→PDF/xdvipdfmx 阶段输出）；
+    # 不加时 xdvipdfmx 报错只进 tectonic stderr、不落 {stem}.log，导致"LaTeX 成功但
+    # 无 PDF"且 log 无错误行（MDPI 模板实测）。stdout/stderr 统一落盘 output.log。
+    cmd = [
+        str(_tectonic_bin()), "-X", "compile", main_path.name,
+        "--untrusted", "--keep-logs", "--print", "--outdir", str(outdir),
+    ]
+    timeout = settings.compile_project_timeout_s
+    log_path = outdir / "output.log"
+    started = time.monotonic()
+    try:
+        proc = await asyncio.create_subprocess_exec(
+            *cmd, cwd=str(cwd), env=env,
+            stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.STDOUT,
+            start_new_session=True,
+        )
+        try:
+            stdout_bytes, _ = await asyncio.wait_for(
+                proc.communicate(), timeout=timeout)
+        except asyncio.TimeoutError:
+            _kill_group(proc)
+            try:
+                await asyncio.wait_for(proc.wait(), timeout=5.0)
+            except asyncio.TimeoutError:
+                pass
+            # 超时后 communicate 已取消，chatter 不可取；.log（--keep-logs）仍完整
+            _ensure_project_log(outdir, stem, cwd)
+            # 约束4：转换日志先落（转换发生在编译之前），再追加超时标记
+            _append_eps_lines(log_path, eps_log_lines)
+            # 追加而非覆盖：保留完整引擎输出（诊断 XDV→PDF 阶段必需）
+            with log_path.open("a", encoding="utf-8") as fh:
+                fh.write(f"\n[timeout] 编译超时（{timeout:g}s），进程已终止\n")
+            raise CompileError(
+                "TIMEOUT",
+                f"编译超过 {timeout:g} 秒未完成，已终止"
+                "（项目首次编译需下载宏包，可能较慢，请重试）",
+                _log_tail(log_path),
+            ) from None
+    except FileNotFoundError as exc:
+        raise ToolUnavailableError(f"tectonic 不可执行：{exc}") from exc
+    finally:
+        seconds = round(time.monotonic() - started, 2)
+
+    _ensure_project_log(outdir, stem, cwd)
+
+    # 产物归一：{stem}.pdf/.log → output.pdf/.log（补充 3：失败也必有 output.log）
+    produced_pdf = outdir / f"{stem}.pdf"
+    produced_log = outdir / f"{stem}.log"
+    if produced_log.is_file():
+        shutil.move(str(produced_log), str(log_path))
+    if not log_path.is_file():
+        log_path.write_text(
+            "[no log] tectonic 未产出日志（进程异常退出）", encoding="utf-8")
+    # 约束4：[eps-convert] 转换日志（引擎 log 之后、chatter 之前）
+    _append_eps_lines(log_path, eps_log_lines)
+    # --print 的进程输出（含 XDV→PDF 阶段）追加到 output.log 全文之后；
+    # 信封 detail 仍只取尾 200 行，磁盘保留完整 log 供"查看完整 log"下载
+    _append_chatter(log_path, stdout_bytes)
+
+    if not produced_pdf.is_file():
+        raise CompileError(
+            "COMPILE_FAILED",
+            classify_compile_error(_log_tail(log_path)),
+            _log_tail(log_path),
+        )
+    pdf_bytes = produced_pdf.stat().st_size
+    if pdf_bytes > settings.max_compile_pdf_bytes:
+        produced_pdf.unlink(missing_ok=True)
+        raise CompileError(
+            "OUTPUT_TOO_LARGE",
+            f"产出 PDF 超过 {settings.max_compile_pdf_bytes // (1024 * 1024)}MB 上限，已删除",
+            _log_tail(log_path),
+        )
+    produced_pdf.rename(outdir / "output.pdf")
+
+    meta = {
+        "compile_id": cid,
+        "project": True,
+        "main": main_rel,
+        "engine": _ENGINE,
+        "seconds": seconds,
+        "pdf_bytes": pdf_bytes,
+        "returncode": 0,
+        "compiled_at": datetime.now(timezone.utc).isoformat(timespec="seconds"),
+    }
+    (outdir / "meta.json").write_text(
+        json.dumps(meta, ensure_ascii=False, indent=2), encoding="utf-8")
+    logger.info("compile(project): %s main=%s → PDF %d bytes, %.2fs",
+                cid, main_rel, pdf_bytes, seconds)
+    return {
+        "compile_id": cid,
+        "pdf_path": outdir / "output.pdf",
+        "log_path": log_path,
+        "seconds": seconds,
+        "pdf_bytes": pdf_bytes,
+    }
+
+
+def _ensure_project_log(outdir: Path, stem: str, cwd: Path) -> None:
+    """tectonic 落 log 到 outdir 或 cwd → 统一挪到 outdir/output.log；都没有则占位。"""
+    log_path = outdir / "output.log"
+    if log_path.is_file():
+        return
+    for cand in (outdir / f"{stem}.log", cwd / f"{stem}.log"):
+        if cand.is_file():
+            shutil.move(str(cand), str(log_path))
+            return
+
+
+def _append_chatter(log_path: Path, stdout_bytes: bytes | None) -> None:
+    """把 tectonic --print 的进程 stdout（含 XDV→PDF/xdvipdfmx 阶段）追加到 output.log。
+
+    {stem}.log 只有 LaTeX 引擎内容（止于 "Output written on … .xdv"）；
+    XDV→PDF 转换错误只出现在进程 chatter 里——不落盘则"无 PDF 且 log 无错误行"。
+    """
+    if not stdout_bytes:
+        return
+    chatter = stdout_bytes.decode("utf-8", errors="replace").strip()
+    if not chatter:
+        return
+    with log_path.open("a", encoding="utf-8") as fh:
+        fh.write("\n\n===== tectonic --print（进程输出，含 XDV→PDF 阶段）=====\n")
+        fh.write(chatter)
+        fh.write("\n")
+
+
+def sweep_inspect_expired() -> int:
+    """删 mtime 超 inspect_ttl_s（默认 1h）的 12-hex inspect 暂存目录。"""
+    settings = get_settings()
+    base = settings.inspect_dir_abs
+    if not base.is_dir():
+        return 0
+    cutoff = time.time() - settings.inspect_ttl_s
+    removed = 0
+    for child in base.iterdir():
+        if not child.is_dir() or not _ANCHOR_ID_RE.fullmatch(child.name):
+            continue
+        try:
+            if child.stat().st_mtime < cutoff:
+                shutil.rmtree(child, ignore_errors=True)
+                removed += 1
+        except OSError:
+            continue
+    if removed:
+        logger.info("inspect sweep: 清理 %d 个过期 inspect 暂存（>%d 秒）",
+                    removed, settings.inspect_ttl_s)
+    return removed
+
+
+def _keep_failed_projects() -> bool:
+    """失败现场是否永久保留（调试）：REVIEW_KEEP_FAILED_PROJECTS=1 或裸 KEEP_FAILED_PROJECTS=1。"""
+    if get_settings().keep_failed_projects:
+        return True
+    return os.environ.get("KEEP_FAILED_PROJECTS", "").strip() == "1"
+
+
+def sweep_compile_jobs_expired() -> int:
+    """编译产物清扫，两级：
+      ① 失败现场 project/ 子目录：mtime 超 failed_project_ttl_s（默认 24h）→ 删子目录
+         （compile_jobs/{cid} 本体与 output.log/meta 保留，供"查看完整 log"）；
+         KEEP_FAILED_PROJECTS=1 跳过（永久保留，调试用）。
+      ② 整个 compile_jobs/{cid}：mtime 超 compile_retention_days（7 天）→ 整目录删。
+    """
+    settings = get_settings()
+    base = settings.compile_jobs_dir_abs
+    if not base.is_dir():
+        return 0
+    removed = 0
+    keep_failed = _keep_failed_projects()
+    # ① 失败现场 24h 清理（成功编译的 project/ 已在 compile_project_job 立即删）
+    if not keep_failed:
+        proj_cutoff = time.time() - settings.failed_project_ttl_s
+        for child in base.iterdir():
+            if not child.is_dir() or not _ANCHOR_ID_RE.fullmatch(child.name):
+                continue
+            proj = child / "project"
+            if not proj.is_dir():
+                continue
+            try:
+                if proj.stat().st_mtime < proj_cutoff:
+                    shutil.rmtree(proj, ignore_errors=True)
+                    removed += 1
+            except OSError:
+                continue
+    # ② 整目录 7 天清理
+    cutoff = time.time() - settings.compile_retention_days * 86400
+    for child in base.iterdir():
+        if not child.is_dir() or not _ANCHOR_ID_RE.fullmatch(child.name):
+            continue
+        try:
+            if child.stat().st_mtime < cutoff:
+                shutil.rmtree(child, ignore_errors=True)
+                removed += 1
+        except OSError:
+            continue
+    if removed:
+        logger.info("compile_jobs sweep: 清理 %d 个过期项目产物/失败现场", removed)
+    return removed
diff --git a/review_service/app/services/zip_safety.py b/review_service/app/services/zip_safety.py
new file mode 100644
index 0000000..0608eee
--- /dev/null
+++ b/review_service/app/services/zip_safety.py
@@ -0,0 +1,288 @@
+r"""services/zip_safety.py —— LaTeX 项目 zip 安全校验与解压（P4，纯函数模块）。
+
+安全清单（每条攻击 → 防御位置，对应设计 §2）：
+  #1  路径穿越 ../../etc/passwd   → sanitize_entry_name：拒绝 .. 段/绝对路径/盘符/空段
+                                    （\ 已先归一为 /，Windows 反斜杠变体同规则）
+  #2  反斜杠变体 ..\\..\\x         → 同上（name.replace("\\\\", "/") 后再校验）
+  #3  符号链接条目                 → _is_symlink：external_attr 的 S_IFMT == S_IFLNK → 整包拒绝
+  #4  可执行扩展名 .exe/.sh/.so    → classify_entry：DENY_EXT → 整包拒绝（点名条目）
+  #5  Unix 可执行位 0o111          → _has_exec_bit：普通文件带 x 位 → 整包拒绝（目录 0o755 例外）
+  #6  无害非白名单 .docx/.log/.zip → classify_entry：skip（记 skipped[]；.zip 跳过=天然防嵌套递归）
+  #7  zip bomb 压缩比              → 预扫 file_size/compress_size > max_zip_ratio → ZIP_BOMB
+  #8  zip bomb 总量                → 预扫声明累计 > max_extract_bytes → ZIP_BOMB；
+                                    流式写盘按**实际字节**再计数（不信头部声明）超限即中止
+  #9  zip bomb 单条目              → 预扫 file_size > max_entry_bytes → ZIP_BOMB；实写计数兜底
+  #10 zip bomb 条目数              → 预扫 len(infolist) > max_zip_entries → ZIP_BOMB（先于一切写盘）
+  #11 深嵌套/超长路径              → 路径深度 > max_path_depth 或总长 > max_path_len → ZIP_UNSAFE
+  #12 损坏/加密 zip                → zipfile.BadZipFile / RuntimeError → ZIP_INVALID
+  #13 头部谎报小文件               → 实写计数兜底（#8）；CRC 错 → ZIP_INVALID
+  #14 恶意 .tex shell escape       → 不在本模块范围（tectonic --untrusted 防护，P3a 已实证）
+  #15 解压阻塞事件循环             → 调用方 asyncio.to_thread 包裹；本模块上限 200MB/2000 条封顶
+
+设计要点：
+  - 两段式：①纯预扫（所有结构性检查，全部通过才开始写）→ ②流式写盘（8KB 块 + 实字节计数）。
+    任何异常 → 调用方 rmtree(dest)，磁盘零残留。
+  - 绝不 extractall；绝不保留可执行位（写盘一律 0o644）。
+  - 目录条目只建不校验扩展名；SKIP_DIRS 整目录跳过（补充 4 提示对应）。
+
+纯函数：输入 bytes/路径/Settings，输出 ExtractResult 或抛 ZipSafetyError，无 FastAPI/asyncio 依赖。
+"""
+from __future__ import annotations
+
+import io
+import re
+import stat
+import zipfile
+from dataclasses import dataclass, field
+from pathlib import Path, PurePosixPath
+from typing import Literal
+
+# 危险类型（deny → 整包拒绝）
+DENY_EXT = {
+    ".exe", ".com", ".bat", ".cmd", ".sh", ".bash", ".ps1", ".vbs",
+    ".dll", ".so", ".dylib", ".msi", ".jar", ".py", ".rb", ".pl", ".php", ".js",
+}
+# LaTeX 项目白名单（allow → 解压）
+ALLOW_EXT = {
+    ".tex", ".cls", ".sty", ".bst", ".bib", ".bbl", ".blg", ".def", ".clo",
+    ".fd", ".cfg", ".ist", ".dtx", ".ins",
+    ".png", ".jpg", ".jpeg", ".pdf", ".eps", ".svg",
+    ".txt", ".md", ".csv", ".dat", ".ttf", ".otf",
+}
+# 无扩展名白名单
+ALLOW_BARE = {"README", "LICENSE", "Makefile", ".gitignore"}
+# 整目录跳过（不进 skipped 计数之外的拒绝路径，直接 skip）
+SKIP_DIRS = {".git", "node_modules", "__MACOSX"}
+
+
+class ZipSafetyError(Exception):
+    """zip 不安全/超限/损坏。code ∈ {ZIP_UNSAFE, ZIP_BOMB, ZIP_INVALID}。"""
+
+    def __init__(self, code: str, message: str, entry: str = "") -> None:
+        super().__init__(message)
+        self.code = code
+        self.message = message
+        self.entry = entry
+
+
+@dataclass
+class SkippedEntry:
+    name: str
+    reason: str
+
+
+@dataclass
+class ExtractResult:
+    files: int = 0
+    tex: int = 0
+    images: int = 0
+    cls: int = 0
+    bib: int = 0
+    other: int = 0
+    bytes: int = 0
+    skipped: list[SkippedEntry] = field(default_factory=list)
+    skipped_count: int = 0
+
+
+_IMG_EXT = {".png", ".jpg", ".jpeg", ".eps", ".svg"}
+_BARE_RE = re.compile(r"^[A-Za-z]:")   # 盘符
+_CTRL_RE = re.compile(r"[\x00-\x1f]")  # 控制字符
+
+
+def sanitize_entry_name(raw: str) -> str:
+    """归一 + 校验条目名，返回 posix 相对路径；不安全 → ZIP_UNSAFE。
+
+    拒绝：绝对路径（/ 或 \\ 开头）、盘符（C:）、任一段 `..`、空段、NUL/控制字符。
+    """
+    name = raw.replace("\\", "/")
+    if not name or name in ("/", "."):
+        raise ZipSafetyError("ZIP_UNSAFE", f"zip 含空条目名：{raw!r}", raw)
+    if name.startswith("/") or _BARE_RE.match(name):
+        raise ZipSafetyError("ZIP_UNSAFE", f"zip 含绝对路径条目：{raw}", raw)
+    if _CTRL_RE.search(name):
+        raise ZipSafetyError("ZIP_UNSAFE", f"zip 条目名含控制字符：{raw!r}", raw)
+    segs = name.split("/")
+    if any(s == ".." for s in segs):
+        raise ZipSafetyError("ZIP_UNSAFE", f"zip 含路径穿越条目：{raw}", raw)
+    # 空段（//）拒绝；尾段为 ""（目录 / 结尾）在除末位外的段上已由 split 覆盖
+    if any(s == "" for s in segs[:-1]) or (segs and segs[0] == ""):
+        raise ZipSafetyError("ZIP_UNSAFE", f"zip 含非法路径条目：{raw}", raw)
+    depth = len([s for s in segs if s])
+    if depth > 16:
+        raise ZipSafetyError("ZIP_UNSAFE", f"zip 条目路径过深（{depth} 层）：{raw}", raw)
+    if len(name) > 200:
+        raise ZipSafetyError("ZIP_UNSAFE", f"zip 条目路径过长（{len(name)} 字符）：{raw}", raw)
+    return "/".join(s for s in segs if s)
+
+
+def classify_entry(name: str, is_dir: bool) -> Literal["allow", "skip", "deny"]:
+    """条目分类：目录 → allow（只建）；DENY_EXT → deny（整包拒绝）；白名单 → allow；其余 → skip。"""
+    if is_dir:
+        return "allow"
+    segs = name.replace("\\", "/").split("/")
+    # 中间目录段命中 SKIP_DIRS → skip（.git/node_modules 整树跳过）
+    if any(seg in SKIP_DIRS for seg in segs[:-1]):
+        return "skip"
+    p = PurePosixPath(name)
+    ext = p.suffix.lower()
+    # 多重扩展如 .synctex.gz：取最后一段即可（gz 不在白名单 → skip）
+    if ext in DENY_EXT:
+        return "deny"
+    if ext in ALLOW_EXT:
+        return "allow"
+    if p.name.upper() in {b.upper() for b in ALLOW_BARE}:
+        return "allow"
+    return "skip"
+
+
+def _is_symlink(info: zipfile.ZipInfo) -> bool:
+    """external_attr 高 16 位为 Unix mode；S_IFMT == S_IFLNK(0xA000) → 符号链接。"""
+    mode = (info.external_attr >> 16) & 0xFFFF
+    return stat.S_IFMT(mode) == stat.S_IFLNK
+
+
+def _has_exec_bit(info: zipfile.ZipInfo) -> bool:
+    mode = (info.external_attr >> 16) & 0xFFFF
+    # Windows 造的 zip（external_attr 无 Unix mode）mode 可能为 0 → 无 x 位
+    return bool(mode & 0o111)
+
+
+def _prescan(zf: zipfile.ZipFile, settings) -> list[tuple[zipfile.ZipInfo, str]]:
+    """预扫中央目录：条目数 → 路径 → 符号链接/可执行位 → 分类 → 声明大小/压缩比。
+
+    全部通过才允许写盘（两段式第一段）。
+    """
+    infos = zf.infolist()
+    if len(infos) > settings.max_zip_entries:
+        raise ZipSafetyError(
+            "ZIP_BOMB", f"zip 条目数超限（{len(infos)} > {settings.max_zip_entries}）")
+
+    plan: list[tuple[zipfile.ZipInfo, str]] = []
+    declared_total = 0
+    for info in infos:
+        is_dir = info.is_dir()
+        name = sanitize_entry_name(info.filename)
+        if is_dir:
+            continue
+        # #3 符号链接 → 整包拒绝
+        if _is_symlink(info):
+            raise ZipSafetyError("ZIP_UNSAFE", f"zip 含符号链接条目：{info.filename}", info.filename)
+        # #4/#6 分类
+        kind = classify_entry(name, is_dir=False)
+        if kind == "deny":
+            raise ZipSafetyError("ZIP_UNSAFE", f"zip 含危险条目：{info.filename}", info.filename)
+        if kind == "skip":
+            continue
+        # #5 可执行位 → 整包拒绝（仅普通文件；目录已 continue）
+        if _has_exec_bit(info):
+            raise ZipSafetyError(
+                "ZIP_UNSAFE", f"zip 含可执行权限条目：{info.filename}", info.filename)
+        # #9 单条目声明大小
+        if info.file_size > settings.max_zip_entry_bytes:
+            raise ZipSafetyError(
+                "ZIP_BOMB",
+                f"zip 条目过大：{info.filename}（{info.file_size} 字节）", info.filename)
+        # #7 压缩比（compress_size=0 且 file_size>0 视为异常）
+        if info.file_size > 0:
+            cs = info.compress_size
+            if cs == 0 or info.file_size / cs > settings.max_zip_ratio:
+                raise ZipSafetyError(
+                    "ZIP_BOMB",
+                    f"zip 条目压缩比异常（疑似 zip bomb）：{info.filename}", info.filename)
+        declared_total += info.file_size
+        # #8 声明累计
+        if declared_total > settings.max_extract_bytes:
+            raise ZipSafetyError(
+                "ZIP_BOMB",
+                f"zip 解压总大小超限（声明 {declared_total} > "
+                f"{settings.max_extract_bytes} 字节）")
+        plan.append((info, name))
+    return plan
+
+
+def safe_extract(zip_bytes: bytes, dest: Path, settings) -> ExtractResult:
+    """安全解压 zip_bytes → dest（新建目录）。
+
+    两段式：①预扫（结构性检查全过）②流式写盘（8KB 块 + 实字节计数）。
+    任何 ZipSafetyError → 调用方负责 rmtree(dest) 清残留。
+    """
+    try:
+        zf = zipfile.ZipFile(io.BytesIO(zip_bytes))
+    except zipfile.BadZipFile as exc:
+        raise ZipSafetyError("ZIP_INVALID", f"zip 文件损坏或不是有效 zip：{exc}") from exc
+
+    result = ExtractResult()
+    with zf:
+        # ---- 第一段：纯预扫 ----
+        plan = _prescan(zf, settings)
+
+        # ---- 第二段：流式写盘 ----
+        dest.mkdir(parents=True, exist_ok=True)
+        written_total = 0
+        for info, rel in plan:
+            target = dest / rel
+            # #1 双保险：resolve 后必须仍在 dest 内
+            resolved_parent = target.parent.resolve()
+            if not str(resolved_parent).startswith(str(dest.resolve())):
+                raise ZipSafetyError(
+                    "ZIP_UNSAFE", f"zip 条目逃逸目标目录：{info.filename}", info.filename)
+            target.parent.mkdir(parents=True, exist_ok=True)
+            try:
+                src = zf.open(info)
+            except RuntimeError as exc:  # 加密条目
+                raise ZipSafetyError("ZIP_INVALID", f"zip 条目受密码保护：{info.filename}") from exc
+            try:
+                with src, open(target, "wb") as out:
+                    while True:
+                        chunk = src.read(8192)
+                        if not chunk:
+                            break
+                        # #8/#13 实写字节计数（不信头部声明）
+                        written_total += len(chunk)
+                        if written_total > settings.max_extract_bytes:
+                            raise ZipSafetyError(
+                                "ZIP_BOMB",
+                                f"zip 实际解压超限（> {settings.max_extract_bytes} 字节），已中止")
+                        out.write(chunk)
+            except zipfile.BadZipFile as exc:  # CRC 校验失败（#12/#13）
+                raise ZipSafetyError(
+                    "ZIP_INVALID", f"zip 条目损坏（CRC 校验失败）：{info.filename}",
+                    info.filename) from exc
+            # #5 绝不保留可执行位
+            target.chmod(0o644)
+            result.files += 1
+            _tally(result, rel)
+        result.bytes = written_total  # 实写累计（#8 计数器终值）
+
+        # 跳过统计（限 20 条 + 总数）
+        skipped: list[SkippedEntry] = []
+        skipped_count = 0
+        for info in zf.infolist():
+            if info.is_dir():
+                continue
+            try:
+                name = sanitize_entry_name(info.filename)
+            except ZipSafetyError:
+                continue  # 预扫已拒绝，不会到这里
+            if classify_entry(name, is_dir=False) == "skip":
+                skipped_count += 1
+                if len(skipped) < 20:
+                    skipped.append(SkippedEntry(name=name, reason="unsupported"))
+        result.skipped = skipped
+        result.skipped_count = skipped_count
+
+    return result
+
+
+def _tally(result: ExtractResult, rel: str) -> None:
+    ext = PurePosixPath(rel).suffix.lower()
+    if ext == ".tex":
+        result.tex += 1
+    elif ext in _IMG_EXT or ext == ".png":
+        result.images += 1
+    elif ext == ".cls":
+        result.cls += 1
+    elif ext == ".bib":
+        result.bib += 1
+    else:
+        result.other += 1
diff --git a/review_service/restart.sh b/review_service/restart.sh
index 80b522d..1e6be33 100755
--- a/review_service/restart.sh
+++ b/review_service/restart.sh
@@ -30,4 +30,7 @@ set +a
 echo "[restart] 启动审稿服务 :$PORT（$PYTHON）"
 nohup "$PYTHON" -m uvicorn "$APP_MODULE" --host "$HOST" --port "$PORT" \
   > "$SCRIPT_DIR/review.log" 2>&1 &
-echo "[restart] 完成；日志 review_service/review.log"
+# P3b：后台预热 tectonic TeX bundle（非阻塞；仅首次需 1-3 分钟，失败不影响服务）
+nohup bash "$SCRIPT_DIR/scripts/prewarm_tectonic.sh" \
+  > "$SCRIPT_DIR/prewarm.log" 2>&1 &
+echo "[restart] 完成；日志 review_service/review.log（预热 prewarm.log）"
diff --git a/review_service/scripts/prewarm_tectonic.sh b/review_service/scripts/prewarm_tectonic.sh
new file mode 100644
index 0000000..54d5aae
--- /dev/null
+++ b/review_service/scripts/prewarm_tectonic.sh
@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+# prewarm_tectonic.sh —— P3b：预下载 tectonic TeX bundle（宏包缓存）
+# 目的：服务启动时预热 data/tectonic-cache/，用户首次编译不必等 1-3 分钟下载。
+# 用法: bash scripts/prewarm_tectonic.sh   （后台跑，非阻塞；restart.sh 自动调起）
+# 注：tectonic v0.17.0 无 `download` 子命令——预热 = 用最小 hello.tex 实编译一次，
+#     让 bundle/宏包落进 TECTONIC_CACHE_DIR（同 tools/README.md 预热法）。
+set -uo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+cd "$SCRIPT_DIR"
+
+TECTONIC="$SCRIPT_DIR/tools/tectonic"
+[[ -x "$TECTONIC" ]] || { echo "[prewarm] tectonic 不存在，跳过：$TECTONIC"; exit 0; }
+
+export TECTONIC_CACHE_DIR="${REVIEW_TECTONIC_CACHE_DIR:-$SCRIPT_DIR/data/tectonic-cache}"
+mkdir -p "$TECTONIC_CACHE_DIR"
+
+TMPDIR_PREWARM="$(mktemp -d)"
+trap 'rm -rf "$TMPDIR_PREWARM"' EXIT
+cat > "$TMPDIR_PREWARM/hello.tex" <<'EOF'
+\documentclass{article}
+\begin{document}
+prewarm
+\end{document}
+EOF
+
+echo "[prewarm] 预下载 TeX bundle 至 $TECTONIC_CACHE_DIR（首次 1-3 分钟，仅一次）"
+if "$TECTONIC" -X compile "$TMPDIR_PREWARM/hello.tex" --untrusted \
+    --outdir "$TMPDIR_PREWARM" >/dev/null 2>&1; then
+  echo "[prewarm] OK：宏包缓存就绪，用户首编可秒级命中"
+else
+  echo "[prewarm] 预热失败（网络/磁盘）：不影响服务启动，首编时仍会现场拉取" >&2
+  exit 0
+fi
diff --git a/review_service/tests/test_compile_zip.py b/review_service/tests/test_compile_zip.py
new file mode 100644
index 0000000..248c2f3
--- /dev/null
+++ b/review_service/tests/test_compile_zip.py
@@ -0,0 +1,639 @@
+"""tests/test_compile_zip.py —— P4 项目 zip 两段式编译集成测试。
+
+真实调用 tools/tectonic（宏包已预热缓存）；二进制缺失时集成用例 skipif 跳过，
+校验/消费/清扫等纯逻辑用例照常运行。
+运行: cd review_service && <venv>/bin/python -m pytest -q
+"""
+from __future__ import annotations
+
+import io
+import json
+import os
+import shutil
+import time
+import zipfile
+from pathlib import Path
+
+import pytest
+from fastapi.testclient import TestClient
+
+from app.config import get_settings
+from app.main import app
+from app.services import latex_compile as lc
+
+MINIMAL = "\\documentclass[11pt]{article}\n\\begin{document}\nhello p4\n\\end{document}\n"
+
+_TECTONIC_OK = get_settings().tectonic_abs.is_file()
+
+needs_tectonic = pytest.mark.skipif(
+    not _TECTONIC_OK, reason="tools/tectonic 未安装（bash tools/install_tectonic.sh）"
+)
+
+
+def _zip_bytes(entries: dict[str, str | bytes]) -> bytes:
+    buf = io.BytesIO()
+    with zipfile.ZipFile(buf, "w", zipfile.ZIP_DEFLATED) as zf:
+        for name, data in entries.items():
+            zf.writestr(name, data)
+    return buf.getvalue()
+
+
+def _upload(client: TestClient, payload: bytes, name: str = "project.zip"):
+    return client.post(
+        "/api/review/compile/inspect",
+        files={"file": (name, payload, "application/zip")},
+    )
+
+
+def _tiny_pdf() -> bytes:
+    """极小合法 PDF（1 页 20x20 蓝色方块），供图片内嵌集成用例。"""
+    stream = b"0 0 1 rg 2 2 10 10 re f\n"
+    objs = [
+        b"<< /Type /Catalog /Pages 2 0 R >>",
+        b"<< /Type /Pages /Kids [3 0 R] /Count 1 >>",
+        b"<< /Type /Page /Parent 2 0 R /MediaBox [0 0 20 20]"
+        b" /Contents 4 0 R /Resources << >> >>",
+        b"<< /Length " + str(len(stream)).encode() + b" >>\nstream\n"
+        + stream + b"endstream",
+    ]
+    out = bytearray(b"%PDF-1.4\n")
+    offsets = []
+    for i, body in enumerate(objs, 1):
+        offsets.append(len(out))
+        out += f"{i} 0 obj\n".encode() + body + b"\nendobj\n"
+    xref_pos = len(out)
+    out += f"xref\n0 {len(objs) + 1}\n".encode()
+    out += b"0000000000 65535 f \n"
+    for off in offsets:
+        out += f"{off:010d} 00000 n \n".encode()
+    out += (f"trailer\n<< /Size {len(objs) + 1} /Root 1 0 R >>\n"
+            f"startxref\n{xref_pos}\n%%EOF\n").encode()
+    return bytes(out)
+
+
+@pytest.fixture()
+def client(tmp_path, monkeypatch):
+    settings = get_settings()
+    monkeypatch.setattr(settings, "reformat_dir", str(tmp_path / "jobs"))
+    monkeypatch.setattr(settings, "inspect_dir", str(tmp_path / "inspect"))
+    monkeypatch.setattr(settings, "compile_jobs_dir", str(tmp_path / "compile_jobs"))
+    monkeypatch.setattr(settings, "compile_timeout_s", 60.0)
+    monkeypatch.setattr(settings, "compile_project_timeout_s", 60.0)
+    monkeypatch.setattr(lc, "_pending", 0)
+    with TestClient(app) as c:
+        yield c
+
+
+# ================================================================ inspect 校验
+
+def test_inspect_not_zip(client: TestClient):
+    r = client.post(
+        "/api/review/compile/inspect",
+        files={"file": ("x.zip", b"notazip", "application/zip")},
+    )
+    assert r.status_code == 200 and r.json()["error"]["code"] == "ZIP_INVALID"
+
+
+def test_inspect_empty(client: TestClient):
+    r = _upload(client, b"")
+    assert r.json()["error"]["code"] == "VALIDATION"
+
+
+def test_inspect_oversize(client: TestClient, monkeypatch):
+    monkeypatch.setattr(get_settings(), "max_zip_bytes", 10)
+    r = _upload(client, _zip_bytes({"main.tex": MINIMAL}))
+    assert r.json()["error"]["code"] == "VALIDATION"
+    assert "上限" in r.json()["error"]["message"]
+
+
+def test_inspect_bad_filename(client: TestClient):
+    r = _upload(client, _zip_bytes({"main.tex": MINIMAL}), name="../evil.zip")
+    assert r.json()["error"]["code"] == "VALIDATION"
+
+
+def test_inspect_path_traversal(client: TestClient):
+    buf = io.BytesIO()
+    with zipfile.ZipFile(buf, "w") as zf:
+        zf.writestr("main.tex", MINIMAL)
+        info = zipfile.ZipInfo("../../evil.txt")
+        zf.writestr(info, "x")
+    r = _upload(client, buf.getvalue())
+    assert r.json()["error"]["code"] == "ZIP_UNSAFE"
+
+
+def test_inspect_denied_ext(client: TestClient):
+    r = _upload(client, _zip_bytes({"main.tex": MINIMAL, "evil.sh": "#!/bin/sh\n"}))
+    assert r.json()["error"]["code"] == "ZIP_UNSAFE"
+    assert "evil.sh" in r.json()["error"]["message"]
+
+
+def test_inspect_ratio_bomb(client: TestClient, monkeypatch):
+    monkeypatch.setattr(get_settings(), "max_zip_ratio", 1.5)
+    r = _upload(client, _zip_bytes({"main.tex": "a" * 100_000}))
+    assert r.json()["error"]["code"] == "ZIP_BOMB"
+
+
+def test_inspect_no_tex(client: TestClient):
+    r = _upload(client, _zip_bytes({"readme.txt": "hi"}))
+    assert r.json()["error"]["code"] == "VALIDATION"
+    assert "没有 .tex" in r.json()["error"]["message"]
+
+
+def test_inspect_no_documentclass(client: TestClient):
+    r = _upload(client, _zip_bytes({"chapters/a.tex": "just text\n"}))
+    assert r.json()["error"]["code"] == "VALIDATION"
+    assert "documentclass" in r.json()["error"]["message"]
+
+
+def test_inspect_multiple_mains(client: TestClient):
+    r = _upload(client, _zip_bytes({
+        "main.tex": MINIMAL, "appendix.tex": MINIMAL}))
+    body = r.json()
+    assert body["error"]["code"] == "VALIDATION"
+    assert "多个主文件" in body["error"]["message"]
+
+
+# ================================================================ inspect 正常 + 卫生
+
+def test_inspect_happy_path(client: TestClient):
+    payload = _zip_bytes({
+        "main.tex": MINIMAL,
+        "figs/fig1.png": b"\x89PNG\r\n\x1a\nfake",
+        "refs.bib": "@article{a,\n  title={t}\n}\n",
+        "journal.cls": "% fake cls\n",
+        "notes.docx": "skip me",
+        ".DS_Store": "junk",
+        "__MACOSX/._main.tex": "resource fork junk",
+    })
+    r = _upload(client, payload)
+    body = r.json()
+    assert body["ok"] is True, body
+    meta = body["meta"]
+    assert meta["main"] == "main.tex"
+    stats = meta["stats"]
+    assert stats["tex"] == 1 and stats["images"] == 1
+    assert stats["cls"] == 1 and stats["bib"] == 1
+    assert meta["skipped_count"] >= 2
+    names = {s["name"] for s in meta["skipped"]}
+    assert any("notes.docx" in n for n in names)
+
+    job_id = meta["job_id"]
+    assert len(job_id) == 12
+    jdir = get_settings().inspect_dir_abs / job_id
+    assert (jdir / "inspect.json").is_file()
+    assert (jdir / "project" / "main.tex").is_file()
+
+
+def test_inspect_fail_leaves_no_residue(client: TestClient):
+    r = _upload(client, _zip_bytes({"main.tex": MINIMAL, "evil.sh": "x"}))
+    assert r.json()["ok"] is False
+    base = get_settings().inspect_dir_abs
+    if base.is_dir():
+        assert not any(base.iterdir()), "inspect 失败后磁盘有残留"
+
+
+# ================================================================ run：校验 / 原子消费
+
+def test_run_bad_job_id(client: TestClient):
+    r = client.post("/api/review/compile/run", json={"job_id": "zz"})
+    assert r.json()["error"]["code"] == "VALIDATION"
+
+
+def test_run_unknown_job(client: TestClient):
+    r = client.post("/api/review/compile/run", json={"job_id": "0123456789ab"})
+    assert r.json()["error"]["code"] == "VALIDATION"
+
+
+def test_run_double_consume_rejected(client: TestClient):
+    """补充：原子消费——同一 job 第二次 run 必须 VALIDATION（防并发双跑）。"""
+    job_id = _upload(client, _zip_bytes({"main.tex": MINIMAL})).json()["meta"]["job_id"]
+    first = client.post("/api/review/compile/run", json={"job_id": job_id}).json()
+    first_err = first.get("error") or {}
+    if first_err.get("code") == "TOOL_UNAVAILABLE":
+        pytest.skip("tectonic 未安装，消费逻辑未触达")
+    # 首次无论编译成败（消费已发生），二次必失败
+    assert first["ok"] is True or first["error"]["code"] in (
+        "COMPILE_FAILED", "TIMEOUT")
+    second = client.post("/api/review/compile/run", json={"job_id": job_id}).json()
+    assert second["ok"] is False
+    assert second["error"]["code"] == "VALIDATION"
+    # inspect 残壳也不应存在
+    assert not (get_settings().inspect_dir_abs / job_id / "project").exists()
+
+
+def test_run_tool_unavailable_keeps_job(client: TestClient, monkeypatch):
+    """队列/工具检查先于消费 → TOOL_UNAVAILABLE 时 inspect 保留可重试。"""
+    job_id = _upload(client, _zip_bytes({"main.tex": MINIMAL})).json()["meta"]["job_id"]
+    with monkeypatch.context() as m:
+        m.setattr(get_settings(), "tectonic_path", "tools/definitely-missing")
+        r = client.post("/api/review/compile/run", json={"job_id": job_id}).json()
+        assert r["error"]["code"] == "TOOL_UNAVAILABLE"
+    assert (get_settings().inspect_dir_abs / job_id / "inspect.json").is_file()
+
+
+def test_run_queue_full_keeps_job(client: TestClient, monkeypatch):
+    job_id = _upload(client, _zip_bytes({"main.tex": MINIMAL})).json()["meta"]["job_id"]
+    monkeypatch.setattr(lc, "_pending", 5)
+    monkeypatch.setattr(get_settings(), "compile_queue_limit", 5)
+    r = client.post("/api/review/compile/run", json={"job_id": job_id})
+    assert r.status_code == 429
+    assert r.json()["error"]["code"] == "QUEUE_FULL"
+    assert (get_settings().inspect_dir_abs / job_id / "inspect.json").is_file()
+
+
+# ================================================================ run：真实 tectonic
+
+@needs_tectonic
+def test_run_project_happy_path(client: TestClient):
+    payload = _zip_bytes({"main.tex": MINIMAL})
+    job_id = _upload(client, payload).json()["meta"]["job_id"]
+    r = client.post("/api/review/compile/run", json={"job_id": job_id})
+    body = r.json()
+    assert body["ok"] is True, body
+    cid = body["compile_id"]
+    assert len(cid) == 12
+
+    pdf = client.get(body["pdf_url"])
+    assert pdf.status_code == 200
+    assert pdf.headers["content-type"].startswith("application/pdf")
+    assert pdf.content[:5] == b"%PDF-"
+
+    log = client.get(body["log_url"])
+    assert log.status_code == 200
+    assert "LaTeX2e" in log.text and "Output written" in log.text
+
+    meta = client.get(f"/api/review/compile/zip/{cid}")
+    m = meta.json()
+    assert m["ok"] is True
+    assert m["meta"]["project"] is True
+    assert m["meta"]["main"] == "main.tex"
+    assert m["meta"]["pdf_bytes"] > 0
+
+    # project 树已删，只留产物
+    cdir = get_settings().compile_jobs_dir_abs / cid
+    assert not (cdir / "project").exists()
+    assert (cdir / "output.pdf").is_file()
+
+
+@needs_tectonic
+def test_run_failed_envelope_has_log_url(client: TestClient):
+    """补充 3：编译失败信封带 compile_id + log_url，且 log 可下载。"""
+    bad = "\\documentclass{article}\n\\begin{document}\n\\undefinedcommandxyz\n"
+    job_id = _upload(client, _zip_bytes({"main.tex": bad})).json()["meta"]["job_id"]
+    body = client.post("/api/review/compile/run", json={"job_id": job_id}).json()
+    assert body["ok"] is False
+    assert body["error"]["code"] == "COMPILE_FAILED"
+    cid = body.get("compile_id")
+    assert cid and len(cid) == 12
+    assert body["log_url"] == f"/api/review/compile/zip/{cid}/log"
+    log = client.get(body["log_url"])
+    assert log.status_code == 200 and log.text.strip()
+
+
+@needs_tectonic
+def test_run_failed_keeps_project_scene(client: TestClient):
+    """失败保留现场（诊断）：COMPILE_FAILED → compile_jobs/{cid}/project/ 不删。"""
+    bad = "\\documentclass{article}\n\\begin{document}\n\\undefinedcommandxyz\n"
+    job_id = _upload(client, _zip_bytes({"main.tex": bad})).json()["meta"]["job_id"]
+    body = client.post("/api/review/compile/run", json={"job_id": job_id}).json()
+    assert body["ok"] is False and body["error"]["code"] == "COMPILE_FAILED"
+    cid = body["compile_id"]
+    cdir = get_settings().compile_jobs_dir_abs / cid
+    assert (cdir / "project" / "main.tex").is_file()  # 现场保留
+    assert (cdir / "output.log").is_file()
+
+
+@needs_tectonic
+def test_run_missing_cls_friendly_message(client: TestClient):
+    """classify_compile_error：缺 .cls → 期刊模板提示（Q4/§4.4）。"""
+    tex = "\\documentclass{noexist-cls}\n\\begin{document}\nx\n"
+    job_id = _upload(client, _zip_bytes({"main.tex": tex})).json()["meta"]["job_id"]
+    body = client.post("/api/review/compile/run", json={"job_id": job_id}).json()
+    assert body["ok"] is False and body["error"]["code"] == "COMPILE_FAILED"
+    assert "noexist-cls" in body["error"]["message"]
+
+
+@needs_tectonic
+def test_run_project_malicious_write18(client: TestClient, tmp_path):
+    canary = tmp_path / "canary_p4"
+    evil = (
+        "\\documentclass{article}\n"
+        f"\\write18{{touch {canary}}}\n"
+        "\\begin{document}\nno shell please\n\\end{document}\n"
+    )
+    job_id = _upload(client, _zip_bytes({"main.tex": evil})).json()["meta"]["job_id"]
+    client.post("/api/review/compile/run", json={"job_id": job_id})
+    assert not canary.exists(), r"\write18 竟然执行了！"
+
+
+@needs_tectonic
+def test_run_project_timeout(client: TestClient, monkeypatch):
+    monkeypatch.setattr(get_settings(), "compile_project_timeout_s", 5.0)
+    loop_tex = (
+        "\\documentclass{article}\n\\begin{document}\n"
+        "\\count255=0\n\\loop\\iftrue\\advance\\count255 by 1\\repeat\n"
+        "\\end{document}\n"
+    )
+    job_id = _upload(client, _zip_bytes({"main.tex": loop_tex})).json()["meta"]["job_id"]
+    started = time.monotonic()
+    body = client.post("/api/review/compile/run", json={"job_id": job_id}).json()
+    elapsed = time.monotonic() - started
+    assert body["ok"] is False and body["error"]["code"] == "TIMEOUT"
+    assert elapsed < 15.0, f"超时回收过慢：{elapsed:.1f}s"
+    # 超时也必落 log（补充 3）
+    log = client.get(body["log_url"])
+    assert log.status_code == 200
+    assert "[timeout]" in log.text
+
+
+# ================================================================ EPS 兼容 v2（批量现场转换）
+
+_MIN_EPS = (
+    b"%!PS-Adobe-3.0 EPSF-3.0\n%%BoundingBox: 0 0 10 10\n"
+    b"0 0 1 setrgbcolor 0 0 10 10 rectfill\nshowpage\n%%EOF\n"
+)
+
+
+def _eps_project(tmp_path, tex_body: str = "") -> Path:
+    proj = tmp_path / "p"
+    proj.mkdir()
+    (proj / "fig.eps").write_bytes(_MIN_EPS)
+    (proj / "main.tex").write_text(
+        "\\documentclass{article}\n\\usepackage{graphicx}\n"
+        "\\begin{document}\n" + tex_body + "\n\\end{document}\n",
+        encoding="utf-8")
+    return proj
+
+
+def test_eps_v2_preset_converted(tmp_path, monkeypatch):
+    """zip 自带 *-eps-converted-to.pdf → 免转换复制为 X.pdf + 显式引用改写。"""
+    # other.eps 无转换版 → mock 工具为空使其失败，隔离 preset 逻辑（不真跑 gs）
+    monkeypatch.setattr(lc, "_eps_tool_commands", lambda eps, pdf: [])
+    proj = _eps_project(tmp_path)
+    defs = proj / "Definitions"
+    defs.mkdir()
+    (defs / "logo-mdpi.eps").write_bytes(_MIN_EPS)
+    (defs / "logo-mdpi-eps-converted-to.pdf").write_bytes(_tiny_pdf())
+    (defs / "other.eps").write_bytes(b"%!PS\n")  # 无转换版 → 走现场转换（被 mock 挡下）
+    (defs / "mdpi.cls").write_text(
+        "\\includegraphics{Definitions/logo-mdpi.eps}\n"
+        "\\includegraphics{Definitions/other.eps}\n", encoding="utf-8")
+
+    lines = lc.process_eps_images(proj)
+
+    cls = (defs / "mdpi.cls").read_text(encoding="utf-8")
+    assert "Definitions/logo-mdpi.pdf" in cls        # 显式引用已改写为 .pdf
+    assert "Definitions/other.eps" in cls            # 转换失败的保持原样
+    assert (defs / "logo-mdpi.eps").is_file()        # 原文件保留
+    assert (defs / "logo-mdpi.pdf").is_file()        # 免转换复制
+    assert not (defs / "other.pdf").exists()
+    assert any(", preset)" in l for l in lines), lines
+    assert any("全部工具失败，图片 Definitions/other.eps 未转换" in l
+               for l in lines), lines
+
+
+def test_eps_v2_real_gs_convert(tmp_path):
+    """无预转换版 → 现场 gs 转换（真实工具链；测试点：显式 + 缺省扩展名引用都就位）。"""
+    if not shutil.which("gs"):
+        pytest.skip("gs 未安装")
+    proj = _eps_project(tmp_path, "\\includegraphics{fig.eps}\n\\includegraphics{fig}")
+    lines = lc.process_eps_images(proj)
+    assert any("[eps-convert] fig.eps → fig.pdf" in l and ", gs)" in l for l in lines)
+    pdf = proj / "fig.pdf"
+    assert pdf.is_file() and pdf.read_bytes()[:5] == b"%PDF-"
+    tex = (proj / "main.tex").read_text(encoding="utf-8")
+    assert "{fig.pdf}" in tex                        # 显式 .eps 引用已改写
+    assert "{fig}" in tex                            # 缺省扩展名引用由 X.pdf 命中
+    assert (proj / "fig.eps").is_file()              # 原文件保留
+
+
+def test_eps_v2_tool_fallback(tmp_path, monkeypatch):
+    """工具优先级 gs → epstopdf → ps2pdf：gs 失败 → epstopdf 成功。"""
+    def fake_tools(eps: Path, pdf: Path):
+        return [
+            ("gs", ["sh", "-c", "exit 1"]),
+            ("epstopdf", ["sh", "-c", f"echo %PDF-fake > {pdf}"]),
+        ]
+    monkeypatch.setattr(lc, "_eps_tool_commands", fake_tools)
+    proj = _eps_project(tmp_path, "\\includegraphics{fig.eps}")
+    lines = lc.process_eps_images(proj)
+    assert any(l.startswith("[eps-convert] fig.eps → fig.pdf") and ", epstopdf)" in l
+               for l in lines), lines
+    assert (proj / "fig.pdf").is_file()
+    assert "{fig.pdf}" in (proj / "main.tex").read_text(encoding="utf-8")
+
+
+def test_eps_v2_all_tools_fail(tmp_path, monkeypatch):
+    """全工具失败 → log 行「全部工具失败…未转换」，引用保持 .eps。"""
+    monkeypatch.setattr(
+        lc, "_eps_tool_commands",
+        lambda eps, pdf: [("gs", ["sh", "-c", "exit 1"])])
+    proj = _eps_project(tmp_path, "\\includegraphics{fig.eps}")
+    lines = lc.process_eps_images(proj)
+    assert "[eps-convert] 全部工具失败，图片 fig.eps 未转换" in lines
+    assert not (proj / "fig.pdf").exists()
+    assert "{fig.eps}" in (proj / "main.tex").read_text(encoding="utf-8")
+
+
+def test_eps_v2_timeout_warns(tmp_path, monkeypatch):
+    """约束2：单文件转换 15s 超时 → warning 行，放弃该文件继续。"""
+    monkeypatch.setattr(lc, "_EPS_CONVERT_TIMEOUT_S", 1)
+    monkeypatch.setattr(
+        lc, "_eps_tool_commands",
+        lambda eps, pdf: [("gs", ["sh", "-c", "sleep 5"])])
+    proj = _eps_project(tmp_path)
+    lines = lc.process_eps_images(proj)
+    assert "[eps-convert] fig.eps 转换超时" in lines
+    assert not (proj / "fig.pdf").exists()
+
+
+def test_eps_v2_file_size_warning(tmp_path, monkeypatch):
+    """约束3a：单文件转换后超上限 → warning 行（不中止）。"""
+    monkeypatch.setattr(lc, "_EPS_CONVERT_MAX_FILE", 10)
+    monkeypatch.setattr(
+        lc, "_eps_tool_commands",
+        lambda eps, pdf: [("gs", ["sh", "-c", f"head -c 1024 /dev/zero > {pdf}"])])
+    proj = _eps_project(tmp_path)
+    lines = lc.process_eps_images(proj)
+    assert any("警告" in l and "超过" in l for l in lines), lines
+
+
+def test_eps_v2_total_size_aborts(tmp_path, monkeypatch):
+    """约束3b：转换产物累计超上限 → InspectError(ZIP_TOO_LARGE) 中止。"""
+    monkeypatch.setattr(lc, "_EPS_CONVERT_MAX_TOTAL", 100)
+    monkeypatch.setattr(
+        lc, "_eps_tool_commands",
+        lambda eps, pdf: [("gs", ["sh", "-c", f"head -c 1024 /dev/zero > {pdf}"])])
+    proj = _eps_project(tmp_path)
+    with pytest.raises(lc.InspectError) as ei:
+        lc.process_eps_images(proj)
+    assert ei.value.code == "ZIP_TOO_LARGE"
+    assert "MB" in ei.value.message
+
+
+@needs_tectonic
+def test_run_eps_with_converted_pdf_succeeds(client: TestClient):
+    """EPS + 预转换 PDF（preset 路径）→ 显式与缺省扩展名引用都编译成功。"""
+    tex = (
+        "\\documentclass{article}\n\\usepackage{graphicx}\n"
+        "\\begin{document}\n"
+        "\\includegraphics[width=1cm]{fig.eps}\n"   # 显式 .eps → 文本替换
+        "\\includegraphics[width=1cm]{fig}\n"       # 缺省扩展名 → X.pdf 命中
+        "\\end{document}\n"
+    )
+    payload = _zip_bytes({
+        "main.tex": tex,
+        "fig.eps": _MIN_EPS,
+        "fig-eps-converted-to.pdf": _tiny_pdf(),
+    })
+    job_id = _upload(client, payload).json()["meta"]["job_id"]
+    body = client.post("/api/review/compile/run", json={"job_id": job_id}).json()
+    assert body["ok"] is True, body
+    pdf = client.get(body["pdf_url"])
+    assert pdf.content[:5] == b"%PDF-"
+
+
+@needs_tectonic
+def test_run_eps_real_gs_conversion_succeeds(client: TestClient):
+    """核心 v2 场景：真实 EPS 无预转换版 → 服务器现场转换 → 端到端编译成功。"""
+    if not shutil.which("gs"):
+        pytest.skip("gs 未安装")
+    tex = (
+        "\\documentclass{article}\n\\usepackage{graphicx}\n"
+        "\\begin{document}\n"
+        "\\includegraphics[width=1cm]{fig.eps}\n"
+        "\\includegraphics[width=1cm]{fig}\n"
+        "\\end{document}\n"
+    )
+    payload = _zip_bytes({"main.tex": tex, "fig.eps": _MIN_EPS})
+    job_id = _upload(client, payload).json()["meta"]["job_id"]
+    body = client.post("/api/review/compile/run", json={"job_id": job_id}).json()
+    assert body["ok"] is True, body
+    assert client.get(body["pdf_url"]).content[:5] == b"%PDF-"
+    # 约束4：转换日志落 output.log
+    log = client.get(body["log_url"]).text
+    assert "[eps-convert] fig.eps → fig.pdf" in log and ", gs)" in log
+
+
+@needs_tectonic
+def test_run_eps_all_tools_fail_friendly_message(
+        client: TestClient, monkeypatch):
+    """测试点2+3：全工具失败 → log 记「全部工具失败」→ 编译失败 → 前端友好提示。"""
+    monkeypatch.setattr(lc, "_eps_tool_commands", lambda eps, pdf: [])
+    tex = (
+        "\\documentclass{article}\n\\usepackage{graphicx}\n"
+        "\\begin{document}\n\\includegraphics[width=1cm]{fig.eps}\n\\end{document}\n"
+    )
+    payload = _zip_bytes({"main.tex": tex, "fig.eps": _MIN_EPS})
+    job_id = _upload(client, payload).json()["meta"]["job_id"]
+    body = client.post("/api/review/compile/run", json={"job_id": job_id}).json()
+    assert body["ok"] is False and body["error"]["code"] == "COMPILE_FAILED"
+    assert body["error"]["message"] == \
+        "项目包含 EPS 图片，服务器转换失败，请转成 PDF/PNG 后重试"
+    log = client.get(body["log_url"]).text
+    assert "[eps-convert] 全部工具失败，图片 fig.eps 未转换" in log
+
+
+# ================================================================ zip 只读端点 404
+
+def test_zip_meta_404(client: TestClient):
+    r = client.get("/api/review/compile/zip/0123456789ab")
+    assert r.json()["error"]["code"] == "NOT_FOUND"
+
+
+def test_zip_pdf_404(client: TestClient):
+    r = client.get("/api/review/compile/zip/0123456789ab/pdf")
+    assert r.json()["error"]["code"] == "NOT_FOUND"
+
+
+def test_zip_log_404(client: TestClient):
+    r = client.get("/api/review/compile/zip/0123456789ab/log")
+    assert r.json()["error"]["code"] == "NOT_FOUND"
+
+
+# ================================================================ 清扫
+
+def test_sweep_inspect_expired(tmp_path, monkeypatch):
+    settings = get_settings()
+    monkeypatch.setattr(settings, "inspect_dir", str(tmp_path / "inspect"))
+    base = tmp_path / "inspect"
+    stale = base / "aabbccddeeff"
+    stale.mkdir(parents=True)
+    (stale / "inspect.json").write_text("{}", encoding="utf-8")
+    (stale / "project").mkdir()
+    old = time.time() - 2 * 3600
+    os.utime(stale, (old, old))
+
+    fresh = base / "112233445566"
+    fresh.mkdir()
+    noise = base / "not-a-job"
+    noise.mkdir()
+
+    removed = lc.sweep_inspect_expired()
+    assert removed == 1
+    assert not stale.exists()
+    assert fresh.exists()
+    assert noise.exists()
+
+
+def test_sweep_compile_jobs_expired(tmp_path, monkeypatch):
+    settings = get_settings()
+    monkeypatch.setattr(settings, "compile_jobs_dir", str(tmp_path / "cj"))
+    base = tmp_path / "cj"
+    stale = base / "aabbccddeeff"
+    stale.mkdir(parents=True)
+    (stale / "output.pdf").write_bytes(b"%PDF-fake")
+    old = time.time() - 8 * 86400
+    os.utime(stale, (old, old))
+
+    fresh = base / "112233445566"
+    fresh.mkdir()
+    (fresh / "output.pdf").write_bytes(b"%PDF-fake")
+    noise = base / "not-a-job"
+    noise.mkdir()
+
+    removed = lc.sweep_compile_jobs_expired()
+    assert removed == 1
+    assert not stale.exists()
+    assert fresh.exists()
+    assert noise.exists()
+
+
+def test_sweep_failed_project_ttl(tmp_path, monkeypatch):
+    """两级清扫①：失败现场 project/ 超 failed_project_ttl_s → 只删子目录，log 保留。"""
+    settings = get_settings()
+    monkeypatch.setattr(settings, "compile_jobs_dir", str(tmp_path / "cj"))
+    monkeypatch.delenv("KEEP_FAILED_PROJECTS", raising=False)
+    base = tmp_path / "cj"
+    stale = base / "aabbccddeeff"
+    (stale / "project").mkdir(parents=True)
+    (stale / "output.log").write_text("log", encoding="utf-8")
+    old = time.time() - settings.failed_project_ttl_s - 3600
+    os.utime(stale / "project", (old, old))
+    os.utime(stale, (old, old))  # 整目录也旧，但未超 7 天 → ② 不触发
+
+    fresh = base / "112233445566"
+    (fresh / "project").mkdir(parents=True)
+    (fresh / "output.log").write_text("log", encoding="utf-8")
+
+    removed = lc.sweep_compile_jobs_expired()
+    assert removed == 1
+    assert not (stale / "project").exists()   # 现场删
+    assert (stale / "output.log").is_file()   # log 留（完整 log 下载）
+    assert (fresh / "project").exists()
+
+
+def test_sweep_failed_project_kept_when_flag(tmp_path, monkeypatch):
+    """KEEP_FAILED_PROJECTS=1：失败现场永久保留（跳过①）。"""
+    settings = get_settings()
+    monkeypatch.setattr(settings, "compile_jobs_dir", str(tmp_path / "cj"))
+    monkeypatch.setenv("KEEP_FAILED_PROJECTS", "1")
+    base = tmp_path / "cj"
+    stale = base / "aabbccddeeff"
+    (stale / "project").mkdir(parents=True)
+    old = time.time() - settings.failed_project_ttl_s - 3600
+    os.utime(stale / "project", (old, old))
+
+    removed = lc.sweep_compile_jobs_expired()
+    assert removed == 0
+    assert (stale / "project").exists()
diff --git a/review_service/tests/test_zip_safety.py b/review_service/tests/test_zip_safety.py
new file mode 100644
index 0000000..25bb186
--- /dev/null
+++ b/review_service/tests/test_zip_safety.py
@@ -0,0 +1,195 @@
+"""tests/test_zip_safety.py —— P4 zip 安全模块纯逻辑测试（无需 tectonic）。
+
+覆盖设计 §2 安全清单 #1-#13（#14 tectonic --untrusted 归 test_compile.py，
+#15 由调用方 to_thread 承担，模块本身只测上限封顶行为）。
+
+运行: cd review_service && <venv>/bin/python -m pytest -q tests/test_zip_safety.py
+"""
+from __future__ import annotations
+
+import io
+import stat
+import zipfile
+from pathlib import Path
+
+import pytest
+
+from app.config import get_settings
+from app.services.zip_safety import (
+    ExtractResult,
+    ZipSafetyError,
+    classify_entry,
+    safe_extract,
+    sanitize_entry_name,
+)
+
+
+def _settings(**over):
+    """取真实 settings 并覆盖上限（dataclass 风格 monkeypatch）。"""
+    s = get_settings()
+    for k, v in over.items():
+        setattr(s, k, v)
+    return s
+
+
+def _make_zip(entries: dict[str, bytes], exec_bits: dict[str, int] | None = None) -> bytes:
+    """entries: name → content；exec_bits: name → unix mode（如 0o100755）。
+
+    必须显式 ZIP_DEFLATED：手动构造的 ZipInfo 默认 ZIP_STORED（ratio=1，测不出压缩比炸弹）。
+    """
+    buf = io.BytesIO()
+    with zipfile.ZipFile(buf, "w", zipfile.ZIP_DEFLATED) as zf:
+        for name, data in entries.items():
+            info = zipfile.ZipInfo(name)
+            info.compress_type = zipfile.ZIP_DEFLATED
+            if exec_bits and name in exec_bits:
+                info.external_attr = exec_bits[name] << 16
+            zf.writestr(info, data)
+    return buf.getvalue()
+
+
+def _symlink_zip(name: str = "link") -> bytes:
+    buf = io.BytesIO()
+    with zipfile.ZipFile(buf, "w") as zf:
+        info = zipfile.ZipInfo(name)
+        info.external_attr = (stat.S_IFLNK | 0o777) << 16  # 0xA1FF
+        zf.writestr(info, "../../etc/passwd")
+    return buf.getvalue()
+
+
+# ================================================================ sanitize（#1/#2/#11）
+
+class TestSanitize:
+    def test_normal_path_ok(self):
+        assert sanitize_entry_name("main.tex") == "main.tex"
+        assert sanitize_entry_name("figs/a.png") == "figs/a.png"
+        assert sanitize_entry_name("a/b/c/") == "a/b/c"   # 目录尾斜杠归一
+
+    def test_path_traversal_rejected(self):                # #1
+        with pytest.raises(ZipSafetyError) as e:
+            sanitize_entry_name("../../etc/passwd")
+        assert e.value.code == "ZIP_UNSAFE"
+
+    def test_backslash_traversal_rejected(self):           # #2 Windows 变体
+        with pytest.raises(ZipSafetyError) as e:
+            sanitize_entry_name("..\\..\\evil.sh")
+        assert e.value.code == "ZIP_UNSAFE"
+
+    def test_absolute_path_rejected(self):
+        with pytest.raises(ZipSafetyError):
+            sanitize_entry_name("/etc/passwd")
+        with pytest.raises(ZipSafetyError):
+            sanitize_entry_name("C:\\Windows\\evil")
+
+    def test_control_char_rejected(self):
+        with pytest.raises(ZipSafetyError):
+            sanitize_entry_name("ma\x00in.tex")
+
+    def test_depth_limit(self):                            # #11
+        deep = "/".join(f"d{i}" for i in range(20)) + "/x.tex"
+        with pytest.raises(ZipSafetyError) as e:
+            sanitize_entry_name(deep)
+        assert e.value.code == "ZIP_UNSAFE"
+
+    def test_length_limit(self):
+        with pytest.raises(ZipSafetyError):
+            sanitize_entry_name("a" * 250 + ".tex")
+
+
+# ================================================================ classify（#4/#6）
+
+class TestClassify:
+    def test_allow(self):
+        for n in ("main.tex", "journal.cls", "refs.bib", "figs/a.png", "x.sty"):
+            assert classify_entry(n, False) == "allow"
+        assert classify_entry("figs/", True) == "allow"
+
+    def test_deny_dangerous(self):                         # #4
+        for n in ("run.sh", "evil.exe", "x.so", "x.dll", "a.py", "b.js"):
+            assert classify_entry(n, False) == "deny"
+
+    def test_skip_harmless_non_whitelist(self):            # #6
+        for n in ("notes.docx", "old.log", "archive.zip", "img.gif"):
+            assert classify_entry(n, False) == "skip"
+
+    def test_skip_dirs(self):                              # #6 附属
+        assert classify_entry("node_modules/x.js", False) == "skip"
+        assert classify_entry(".git/config", False) == "skip"
+        assert classify_entry("__MACOSX/._a.tex", False) == "skip"
+
+
+# ================================================================ safe_extract（#3/#5/#7-#10/#12/#13）
+
+class TestSafeExtract:
+    def test_happy_path(self, tmp_path: Path):
+        zb = _make_zip({"main.tex": b"hi", "figs/a.png": b"\x89PNG"})
+        r = safe_extract(zb, tmp_path / "p", _settings())
+        assert isinstance(r, ExtractResult)
+        assert r.files == 2 and r.tex == 1 and r.images == 1
+        assert (tmp_path / "p" / "main.tex").read_text() == "hi"
+        assert (tmp_path / "p" / "figs" / "a.png").exists()
+
+    def test_symlink_rejected(self, tmp_path: Path):       # #3
+        with pytest.raises(ZipSafetyError) as e:
+            safe_extract(_symlink_zip(), tmp_path / "p", _settings())
+        assert e.value.code == "ZIP_UNSAFE"
+        assert not (tmp_path / "p").exists()               # 预扫拒绝 → 未写盘
+
+    def test_deny_ext_rejects_whole_zip(self, tmp_path: Path):  # #4
+        zb = _make_zip({"main.tex": b"x", "run.sh": b"#!/bin/sh"})
+        with pytest.raises(ZipSafetyError) as e:
+            safe_extract(zb, tmp_path / "p", _settings())
+        assert e.value.code == "ZIP_UNSAFE" and "run.sh" in e.value.message
+        assert not (tmp_path / "p").exists()
+
+    def test_exec_bit_rejects(self, tmp_path: Path):       # #5
+        zb = _make_zip({"main.tex": b"x"}, exec_bits={"main.tex": 0o100755})
+        with pytest.raises(ZipSafetyError) as e:
+            safe_extract(zb, tmp_path / "p", _settings())
+        assert e.value.code == "ZIP_UNSAFE"
+
+    def test_harmless_skipped_not_rejected(self, tmp_path: Path):  # #6 决策1
+        zb = _make_zip({"main.tex": b"x", "notes.docx": b"DOC", "old.zip": b"PK"})
+        r = safe_extract(zb, tmp_path / "p", _settings())
+        assert r.files == 1
+        assert r.skipped_count == 2
+        assert {s.name for s in r.skipped} == {"notes.docx", "old.zip"}
+        assert not (tmp_path / "p" / "notes.docx").exists()
+
+    def test_ratio_bomb_rejected(self, tmp_path: Path):    # #7
+        zb = _make_zip({"big.txt": b"\x00" * (2 * 1024 * 1024)})  # 全零 → ratio ≫100
+        with pytest.raises(ZipSafetyError) as e:
+            safe_extract(zb, tmp_path / "p", _settings())
+        assert e.value.code == "ZIP_BOMB"
+
+    def test_total_bytes_rejected_runtime(self, tmp_path: Path):  # #8 声明上限
+        zb = _make_zip({"a.txt": b"x" * 5000, "b.txt": b"y" * 5000})
+        with pytest.raises(ZipSafetyError) as e:
+            safe_extract(zb, tmp_path / "p", _settings(max_extract_bytes=6000))
+        assert e.value.code == "ZIP_BOMB"
+
+    def test_entry_bytes_rejected(self, tmp_path: Path):   # #9
+        zb = _make_zip({"a.txt": b"x" * 10000})
+        with pytest.raises(ZipSafetyError) as e:
+            safe_extract(zb, tmp_path / "p", _settings(max_zip_entry_bytes=1000))
+        assert e.value.code == "ZIP_BOMB"
+
+    def test_entry_count_rejected(self, tmp_path: Path):   # #10
+        zb = _make_zip({f"f{i}.txt": b"x" for i in range(30)})
+        with pytest.raises(ZipSafetyError) as e:
+            safe_extract(zb, tmp_path / "p", _settings(max_zip_entries=10))
+        assert e.value.code == "ZIP_BOMB"
+        assert not (tmp_path / "p").exists()               # 预扫先于写盘
+
+    def test_corrupt_zip(self, tmp_path: Path):
+        with pytest.raises(ZipSafetyError) as e:
+            safe_extract(b"not a zip at all", tmp_path / "p", _settings())
+        assert e.value.code == "ZIP_INVALID"
+
+    def test_traversal_entry_rejected_end_to_end(self, tmp_path: Path):  # #1 端到端
+        zb = _make_zip({"../evil.txt": b"pwned"})
+        with pytest.raises(ZipSafetyError) as e:
+            safe_extract(zb, tmp_path / "p", _settings())
+        assert e.value.code == "ZIP_UNSAFE"
+        assert not (tmp_path / "evil.txt").exists()        # 磁盘无残留
+        assert not (tmp_path / "p").exists()
diff --git a/tests/frontend/unit/edu/reformat.compile.test.js b/tests/frontend/unit/edu/reformat.compile.test.js
new file mode 100644
index 0000000..fbb97c7
--- /dev/null
+++ b/tests/frontend/unit/edu/reformat.compile.test.js
@@ -0,0 +1,178 @@
+// tests/frontend/unit/edu/reformat.compile.test.js —— ReformatPanel 编译 PDF Tab（P3b）
+//  1) 无 job_id → "请先完成重排版再编译" 引导
+//  2) 有 job_id → "编译 PDF" 按钮可点
+//  3) 点击后按钮变 "编译中…"（loading 期间禁用；store 状态驱动，切面板不中断）
+//  4) 成功状态：iframe 预览 + 下载按钮 + 耗时
+//  5) 失败状态：错误摘要 + log 尾折叠 <pre> + 查看完整 log
+//  6) QUEUE_FULL → 固定文案"编译队列已满（最多 5 个任务）"
+import { describe, it, expect, vi, beforeEach } from 'vitest';
+import { mount } from '@vue/test-utils';
+import { createPinia, setActivePinia } from 'pinia';
+import ReformatPanel from '../../../../ui/src/components/edu/panels/ReformatPanel.vue';
+
+const compileTexMock = vi.fn();
+vi.mock('../../../../ui/src/api/review.js', async (importOriginal) => {
+  const actual = await importOriginal(); // 保留真实 reviewErrorMessage（QUEUE_FULL 文案走 CODE_HINTS）
+  return {
+    ...actual,
+    getJournals: vi.fn().mockResolvedValue({ ok: true, items: [] }),
+    getDirectory: vi.fn(),
+    reformatTex: vi.fn(),
+    compileTex: (...args) => compileTexMock(...args),
+  };
+});
+
+import { useEduStore } from '../../../../ui/src/stores/edu.js';
+import { ApiError } from '../../../../ui/src/api/http.js';
+
+function seedResult(edu, job_id = 'abc123def456') {
+  edu.reformatResult = {
+    ok: true,
+    job_id,
+    modified_tex: '\\documentclass{article}\\begin{document}Hi\\end{document}',
+    changes: [],
+    warnings: [],
+    meta: { filename: 'paper.tex', journal_name: 'Plant Cell', rules_source: 'official' },
+  };
+  edu.reformatStatus = 'ready';
+}
+
+async function mountPdfTab(edu) {
+  const pinia = createPinia();
+  setActivePinia(pinia);
+  edu = useEduStore();
+  const wrapper = mount(ReformatPanel, { global: { plugins: [pinia] } });
+  // 切到"编译 PDF" Tab
+  const tabs = wrapper.findAll('.rf-tab');
+  const pdfTab = tabs.find((t) => t.text() === '编译 PDF');
+  await pdfTab.trigger('click');
+  return { wrapper, edu };
+}
+
+describe('ReformatPanel 编译 PDF Tab（P3b）', () => {
+  beforeEach(() => {
+    compileTexMock.mockReset();
+    // jsdom 无 URL.createObjectURL：store blob 加载走 catch 回退，不致挂
+    if (!URL.createObjectURL) URL.createObjectURL = vi.fn(() => 'blob:mock');
+    if (!URL.revokeObjectURL) URL.revokeObjectURL = vi.fn();
+    global.fetch = vi.fn().mockRejectedValue(new Error('no network'));
+  });
+
+  it('1) 无 job_id → "请先完成重排版再编译" 引导', async () => {
+    const pinia = createPinia();
+    setActivePinia(pinia);
+    const edu = useEduStore();
+    edu.reformatResult = { ok: true, job_id: null, changes: [], meta: {} };
+    edu.reformatStatus = 'ready';
+    const wrapper = mount(ReformatPanel, { global: { plugins: [pinia] } });
+    await wrapper.findAll('.rf-tab').find((t) => t.text() === '编译 PDF').trigger('click');
+    const guide = wrapper.find('[data-testid="rf-compile-guide"]');
+    expect(guide.exists()).toBe(true);
+    expect(guide.text()).toContain('请先完成重排版再编译');
+    expect(wrapper.find('[data-testid="rf-compile-btn"]').exists()).toBe(false);
+  });
+
+  it('2) 有 job_id → "编译 PDF" 按钮可点', async () => {
+    const pinia = createPinia();
+    setActivePinia(pinia);
+    const edu = useEduStore();
+    seedResult(edu);
+    const wrapper = mount(ReformatPanel, { global: { plugins: [pinia] } });
+    await wrapper.findAll('.rf-tab').find((t) => t.text() === '编译 PDF').trigger('click');
+    const btn = wrapper.find('[data-testid="rf-compile-btn"]');
+    expect(btn.exists()).toBe(true);
+    expect(btn.text()).toBe('编译 PDF');
+    expect(btn.attributes('disabled')).toBeUndefined();
+  });
+
+  it('3) 点击后按钮变"编译中…"并禁用；首次编译黄条出现', async () => {
+    const pinia = createPinia();
+    setActivePinia(pinia);
+    const edu = useEduStore();
+    seedResult(edu);
+    compileTexMock.mockReturnValue(new Promise(() => {})); // 挂起，模拟编译中
+    const wrapper = mount(ReformatPanel, { global: { plugins: [pinia] } });
+    await wrapper.findAll('.rf-tab').find((t) => t.text() === '编译 PDF').trigger('click');
+    await wrapper.find('[data-testid="rf-compile-btn"]').trigger('click');
+    await wrapper.vm.$nextTick();
+    const btn = wrapper.find('[data-testid="rf-compile-btn"]');
+    expect(btn.text()).toContain('编译中');
+    expect(btn.attributes('disabled')).toBeDefined();
+    expect(wrapper.find('[data-testid="rf-compile-loading"]').exists()).toBe(true);
+    expect(wrapper.find('[data-testid="rf-first-hint"]').exists()).toBe(true);
+    expect(compileTexMock).toHaveBeenCalledTimes(1);
+    // loading 期间再点不重复提交
+    await wrapper.find('[data-testid="rf-compile-btn"]').trigger('click');
+    expect(compileTexMock).toHaveBeenCalledTimes(1);
+  });
+
+  it('4) 成功状态：iframe 预览 + 下载按钮 + 耗时', async () => {
+    const pinia = createPinia();
+    setActivePinia(pinia);
+    const edu = useEduStore();
+    seedResult(edu);
+    edu.compileResult = {
+      ok: true, compile_id: 'abc123def456',
+      pdf_url: '/api/review/compile/abc123def456/pdf',
+      log_url: '/api/review/compile/abc123def456/log',
+      meta: { seconds: 12.34, pdf_bytes: 1048576, engine: 'tectonic' },
+    };
+    edu.compileStatus = 'ready';
+    edu.compilePdfUrl = ''; // blob 失败回退直链
+    const wrapper = mount(ReformatPanel, { global: { plugins: [pinia] } });
+    await wrapper.findAll('.rf-tab').find((t) => t.text() === '编译 PDF').trigger('click');
+    await wrapper.vm.$nextTick();
+    const frame = wrapper.find('[data-testid="rf-pdf-frame"]');
+    expect(frame.exists()).toBe(true);
+    expect(frame.attributes('src')).toContain('/pdf');
+    expect(wrapper.find('[data-testid="rf-download-pdf"]').exists()).toBe(true);
+    expect(wrapper.find('[data-testid="rf-pdf-size"]').text()).toContain('MB');
+    expect(wrapper.find('[data-testid="rf-compile-secs"]').text()).toContain('12.3 秒');
+    expect(wrapper.find('[data-testid="rf-recompile"]').exists()).toBe(true);
+    expect(wrapper.find('[data-testid="rf-compile-btn"]').exists()).toBe(false); // 操作行换成下载/重编
+  });
+
+  it('5) 失败状态：错误摘要 + log 尾折叠区 + 完整 log 按钮', async () => {
+    const pinia = createPinia();
+    setActivePinia(pinia);
+    const edu = useEduStore();
+    seedResult(edu);
+    edu.compileStatus = 'error';
+    edu.compileError = 'LaTeX 编译失败：缺少宏包';
+    edu.compileLogTail = 'This is tectonic\n! LaTeX Error: File `foo.sty\' not found.\n68 lines omitted...';
+    const wrapper = mount(ReformatPanel, { global: { plugins: [pinia] } });
+    await wrapper.findAll('.rf-tab').find((t) => t.text() === '编译 PDF').trigger('click');
+    await wrapper.vm.$nextTick();
+    const err = wrapper.find('[data-testid="rf-compile-error"]');
+    expect(err.exists()).toBe(true);
+    expect(err.text()).toContain('缺少宏包');
+    const details = wrapper.find('[data-testid="rf-log-details"]');
+    expect(details.exists()).toBe(true);
+    expect(wrapper.find('[data-testid="rf-log-body"]').text()).toContain('foo.sty');
+    expect(wrapper.find('[data-testid="rf-download-log"]').exists()).toBe(true);
+    expect(wrapper.find('[data-testid="rf-recompile"]').exists()).toBe(true);
+    expect(wrapper.find('[data-testid="rf-pdf-frame"]').exists()).toBe(false);
+  });
+
+  it('6) QUEUE_FULL → 固定文案"编译队列已满（最多 5 个任务）"', async () => {
+    const pinia = createPinia();
+    setActivePinia(pinia);
+    const edu = useEduStore();
+    seedResult(edu);
+    compileTexMock.mockRejectedValue(new ApiError('编译队列已满（7 个任务排队），请稍后重试', {
+      code: 'QUEUE_FULL', status: 429,
+    }));
+    const wrapper = mount(ReformatPanel, { global: { plugins: [pinia] } });
+    await wrapper.findAll('.rf-tab').find((t) => t.text() === '编译 PDF').trigger('click');
+    await wrapper.find('[data-testid="rf-compile-btn"]').trigger('click');
+    await wrapper.vm.$nextTick();
+    await wrapper.vm.$nextTick();
+    const err = wrapper.find('[data-testid="rf-compile-error"]');
+    expect(err.exists()).toBe(true);
+    expect(err.text()).toContain('编译队列已满（最多 5 个任务），请稍后重试');
+    // 报错后按钮立即恢复可点（重新编译）
+    const retry = wrapper.find('[data-testid="rf-recompile"]');
+    expect(retry.exists()).toBe(true);
+    expect(retry.attributes('disabled')).toBeUndefined();
+  });
+});
diff --git a/tests/frontend/unit/edu/reformat.file.test.js b/tests/frontend/unit/edu/reformat.file.test.js
new file mode 100644
index 0000000..e8cd43b
--- /dev/null
+++ b/tests/frontend/unit/edu/reformat.file.test.js
@@ -0,0 +1,99 @@
+// tests/frontend/unit/edu/reformat.file.test.js —— ReformatPanel 文件持久化（P3b 修复）
+//  bug：上传 .tex → 重排版 → 点"重新排版"换期刊 → 本地 file 被清空 → 要求重传。
+//  修复：File 进 store（reformatFile，同 presubmitFile 模式）；reset() 不清 file；
+//        仅"×" removeFile 清空。
+//  1) store 有 reformatFile → 挂载即回显文件名
+//  2) 选择文件 → 切换目标期刊 → 文件仍在（store + DOM）
+//  3) 有结果时点"重新排版"（reset）→ 回上传区且文件保留
+//  4) "×" 移除 → store + 本地都清空
+import { describe, it, expect, vi, beforeEach } from 'vitest';
+import { mount } from '@vue/test-utils';
+import { createPinia, setActivePinia } from 'pinia';
+import ReformatPanel from '../../../../ui/src/components/edu/panels/ReformatPanel.vue';
+
+vi.mock('../../../../ui/src/api/review.js', async (importOriginal) => {
+  const actual = await importOriginal();
+  return {
+    ...actual,
+    getJournals: vi.fn().mockResolvedValue({
+      ok: true,
+      items: [{ id: 'gb', name: 'Genome Biology' }, { id: 'mp', name: 'Molecular Plant' }],
+    }),
+    getDirectory: vi.fn(),
+    reformatTex: vi.fn(),
+    compileTex: vi.fn(),
+  };
+});
+
+import { useEduStore } from '../../../../ui/src/stores/edu.js';
+
+const TEX = new File(['\\documentclass{article}\\begin{document}Hi\\end{document}'], 'paper.tex', {
+  type: 'application/x-tex',
+});
+
+/** 先建 pinia → seed store → 再挂载（保证 mount 时读到 store 初值） */
+function setup(seedFn) {
+  const pinia = createPinia();
+  setActivePinia(pinia);
+  const edu = useEduStore();
+  if (seedFn) seedFn(edu);
+  const wrapper = mount(ReformatPanel, { global: { plugins: [pinia] } });
+  return { wrapper, edu };
+}
+
+describe('ReformatPanel 文件持久化（换期刊不丢文件）', () => {
+  beforeEach(() => {
+    global.fetch = vi.fn().mockRejectedValue(new Error('no network'));
+    if (!URL.createObjectURL) URL.createObjectURL = vi.fn(() => 'blob:mock');
+    if (!URL.revokeObjectURL) URL.revokeObjectURL = vi.fn();
+  });
+
+  it('1) store 有 reformatFile → 挂载即回显文件名', async () => {
+    const { wrapper } = setup((edu) => { edu.reformatFile = TEX; });
+    await wrapper.vm.$nextTick();
+    expect(wrapper.find('.rf-file-name').text()).toContain('paper.tex');
+  });
+
+  it('2) 选择文件后切目标期刊 → 文件仍在（store + DOM）', async () => {
+    const { wrapper, edu } = setup();
+    const input = wrapper.find('input.rf-file-input');
+    Object.defineProperty(input.element, 'files', { value: [TEX], configurable: true });
+    await input.trigger('change');
+    await wrapper.vm.$nextTick();
+    expect(edu.reformatFile).toBe(TEX);
+    expect(wrapper.find('.rf-file-name').text()).toContain('paper.tex');
+    // 切换目标期刊（watch 只写 drafts，不清 file）
+    await wrapper.find('#rf-target').setValue('mp');
+    await wrapper.vm.$nextTick();
+    expect(edu.reformatFile).toBe(TEX);
+    expect(wrapper.find('.rf-file-name').text()).toContain('paper.tex');
+    expect(edu.drafts.reformatTarget).toBe('mp');
+  });
+
+  it('3) 有结果时点"重新排版" → 回上传区且文件保留', async () => {
+    const { wrapper, edu } = setup((e) => {
+      e.reformatFile = TEX;
+      e.reformatResult = {
+        ok: true, job_id: 'abc123def456', modified_tex: 'x', changes: [], warnings: [],
+        meta: { filename: 'paper.tex' },
+      };
+      e.reformatStatus = 'ready';
+    });
+    await wrapper.vm.$nextTick();
+    const again = wrapper.findAll('button').find((b) => b.text() === '重新排版');
+    expect(again).toBeTruthy();
+    await again.trigger('click');
+    await wrapper.vm.$nextTick();
+    expect(edu.reformatResult).toBeNull();
+    expect(edu.reformatFile).toBe(TEX); // store 保留
+    expect(wrapper.find('.rf-file-name').text()).toContain('paper.tex'); // DOM 回显
+  });
+
+  it('4) "×" 移除 → store + 本地都清空', async () => {
+    const { wrapper, edu } = setup((e) => { e.reformatFile = TEX; });
+    await wrapper.vm.$nextTick();
+    await wrapper.find('.rf-remove').trigger('click');
+    expect(edu.reformatFile).toBeNull();
+    expect(wrapper.find('.rf-file-name').exists()).toBe(false);
+  });
+});
diff --git a/tests/frontend/unit/edu/reformat.rules-summary.test.js b/tests/frontend/unit/edu/reformat.rules-summary.test.js
new file mode 100644
index 0000000..cad1ea0
--- /dev/null
+++ b/tests/frontend/unit/edu/reformat.rules-summary.test.js
@@ -0,0 +1,123 @@
+// tests/frontend/unit/edu/reformat.rules-summary.test.js
+//  目标期刊规则摘要行（data-testid="rf-rules-summary"）：
+//  1) 有规则字段 + 有 diff → 摘要 + "已修改 N 处"
+//  2) 规则全 null + diff=0 → "无强制约束" + "样本已满足该刊要求，无需修改"
+//  背景：GB/BMC PB/Rice 规则相同、Frontiers 几乎无规则，用户切换期刊看不到 diff 差异，
+//  即使 diff=0 也要展示"该刊要求什么"，消除"没生效"错觉。
+import { describe, it, expect, vi, beforeEach } from 'vitest';
+import { mount } from '@vue/test-utils';
+import { createPinia, setActivePinia } from 'pinia';
+import ReformatPanel from '../../../../ui/src/components/edu/panels/ReformatPanel.vue';
+
+vi.mock('../../../../ui/src/api/review.js', async (importOriginal) => {
+  const actual = await importOriginal();
+  return {
+    ...actual,
+    getJournals: vi.fn().mockResolvedValue({ ok: true, items: [] }),
+    getDirectory: vi.fn(),
+    reformatTex: vi.fn(),
+    compileTex: vi.fn(),
+  };
+});
+
+import { useEduStore } from '../../../../ui/src/stores/edu.js';
+
+function mountWithResult(eduSeed) {
+  const pinia = createPinia();
+  setActivePinia(pinia);
+  const edu = useEduStore();
+  Object.assign(edu, eduSeed);
+  const wrapper = mount(ReformatPanel, { global: { plugins: [pinia] } });
+  return { wrapper, edu };
+}
+
+function resultWith(rules, changes) {
+  return {
+    ok: true,
+    job_id: 'abc123def456',
+    modified_tex: 'x',
+    changes,
+    warnings: [],
+    meta: {
+      filename: 'paper.tex',
+      journal_name: 'Molecular Plant',
+      rules_source: 'official',
+      rules_note: 'journals.json 期刊专属规则',
+      rules,
+    },
+  };
+}
+
+describe('ReformatPanel 目标期刊规则摘要', () => {
+  beforeEach(() => {
+    global.fetch = vi.fn().mockRejectedValue(new Error('no network'));
+    if (!URL.createObjectURL) URL.createObjectURL = vi.fn(() => 'blob:mock');
+    if (!URL.revokeObjectURL) URL.revokeObjectURL = vi.fn();
+  });
+
+  it('1) 有规则字段 + 有 diff → 摘要列出字段且标注"已修改 N 处"', async () => {
+    // Molecular Plant 真实规则形态：12pt / 1.5 / author_year（font/margin null 不显示）
+    const { wrapper } = mountWithResult({
+      reformatStatus: 'ready',
+      reformatResult: resultWith(
+        {
+          min_font_pt: 12, min_margin_mm: null, min_line_spacing: 1.5,
+          refs_style: 'author_year', max_pages: null, min_figures: null, max_fonts: null,
+        },
+        [
+          { line: 1, original: 'a', modified: 'b', reason: 'r', rule_key: 'font_pt', action: 'modified' },
+          { line: 3, original: 'a', modified: 'b', reason: 'r', rule_key: 'line_spacing', action: 'modified' },
+          { line: 4, original: 'a', modified: 'b', reason: 'r', rule_key: 'bib_style', action: 'modified' },
+        ],
+      ),
+    });
+    await wrapper.vm.$nextTick();
+    const el = wrapper.find('[data-testid="rf-rules-summary"]');
+    expect(el.exists()).toBe(true);
+    const text = el.text();
+    expect(text).toContain('1.5 倍行距');
+    expect(text).toContain('作者-年份引用');
+    expect(text).toContain('字号 ≥12pt');
+    expect(text).not.toContain('null');
+    expect(text).not.toContain('边距'); // min_margin_mm=null → 不显示
+    expect(text).toContain('已修改 3 处');
+  });
+
+  it('2) 规则全 null + diff=0 → "无强制约束" + "样本已满足该刊要求，无需修改"', async () => {
+    const { wrapper } = mountWithResult({
+      reformatStatus: 'ready',
+      reformatResult: resultWith(
+        {
+          min_font_pt: null, min_margin_mm: null, min_line_spacing: null,
+          refs_style: null, max_pages: null, min_figures: null, max_fonts: null,
+        },
+        [],
+      ),
+    });
+    await wrapper.vm.$nextTick();
+    const el = wrapper.find('[data-testid="rf-rules-summary"]');
+    expect(el.exists()).toBe(true);
+    const text = el.text();
+    expect(text).toContain('该刊官网未规定明确格式要求，无强制约束');
+    expect(text).toContain('样本已满足该刊要求，无需修改');
+    expect(text).not.toContain('已修改');
+  });
+
+  it('3) 双倍行距 + Vancouver（GB/BMC/Rice 形态）→ 正确映射中文标签', async () => {
+    const { wrapper } = mountWithResult({
+      reformatStatus: 'ready',
+      reformatResult: resultWith(
+        {
+          min_font_pt: null, min_margin_mm: null, min_line_spacing: 2.0,
+          refs_style: 'vancouver', max_pages: null, min_figures: null, max_fonts: null,
+        },
+        [{ line: 3, original: 'a', modified: 'b', reason: 'r', rule_key: 'line_spacing', action: 'modified' }],
+      ),
+    });
+    await wrapper.vm.$nextTick();
+    const text = wrapper.find('[data-testid="rf-rules-summary"]').text();
+    expect(text).toContain('双倍行距');
+    expect(text).toContain('Vancouver 引用');
+    expect(text).toContain('已修改 1 处');
+  });
+});
diff --git a/tests/frontend/unit/edu/reformat.zip.test.js b/tests/frontend/unit/edu/reformat.zip.test.js
new file mode 100644
index 0000000..5eeb377
--- /dev/null
+++ b/tests/frontend/unit/edu/reformat.zip.test.js
@@ -0,0 +1,188 @@
+// tests/frontend/unit/edu/reformat.zip.test.js —— ReformatPanel 项目 zip 两段式（P4）
+//  1) 默认 .tex 模式；切"项目 .zip"→ zip 上传区 + 打包建议文案 + inspect 按钮
+//  2) 选 .zip → inspect 成功 → 摘要（main/统计/跳过）+ 编译按钮
+//  3) inspect 失败（ZIP_UNSAFE 后端原话）→ 错误展示
+//  4) 点编译 → loading → 成功：iframe 预览 + 耗时
+//  5) 编译失败：错误摘要 + log 折叠区 + 查看完整 log（失败信封带 log_url）
+//  6) 模式互斥：切回 .tex 清 zip 状态
+import { describe, it, expect, vi, beforeEach } from 'vitest';
+import { mount } from '@vue/test-utils';
+import { createPinia, setActivePinia } from 'pinia';
+import ReformatPanel from '../../../../ui/src/components/edu/panels/ReformatPanel.vue';
+
+const inspectZipMock = vi.fn();
+const runZipCompileMock = vi.fn();
+vi.mock('../../../../ui/src/api/review.js', async (importOriginal) => {
+  const actual = await importOriginal();
+  return {
+    ...actual,
+    getJournals: vi.fn().mockResolvedValue({ ok: true, items: [] }),
+    getDirectory: vi.fn(),
+    reformatTex: vi.fn(),
+    compileTex: vi.fn(),
+    inspectZip: (...args) => inspectZipMock(...args),
+    runZipCompile: (...args) => runZipCompileMock(...args),
+  };
+});
+
+import { useEduStore } from '../../../../ui/src/stores/edu.js';
+import { ApiError } from '../../../../ui/src/api/http.js';
+
+const INSPECT_OK = {
+  ok: true,
+  meta: {
+    job_id: 'abc123def456',
+    main: 'main.tex',
+    stats: { files: 5, tex: 1, images: 1, cls: 1, bib: 1, other: 1, bytes: 4096 },
+    skipped: [{ name: '__MACOSX/._main.tex', reason: 'skip_dir' }],
+    skipped_count: 1,
+    created_at: '2026-10-13T00:00:00+00:00',
+  },
+};
+
+function zipFile(name = 'project.zip') {
+  return new File([new Uint8Array([0x50, 0x4b, 0x03, 0x04])], name, {
+    type: 'application/zip',
+  });
+}
+
+async function mountZipPanel(edu) {
+  const pinia = createPinia();
+  setActivePinia(pinia);
+  edu = useEduStore();
+  const wrapper = mount(ReformatPanel, { global: { plugins: [pinia] } });
+  await wrapper.find('[data-testid="rf-mode-zip"]').trigger('click');
+  return { wrapper, edu };
+}
+
+async function pickZip(wrapper, edu, file = zipFile()) {
+  const input = wrapper.find('input[type="file"]');
+  Object.defineProperty(input.element, 'files', { value: [file], configurable: true });
+  await input.trigger('change');
+  await wrapper.vm.$nextTick();
+}
+
+describe('ReformatPanel 项目 zip 两段式（P4）', () => {
+  beforeEach(() => {
+    inspectZipMock.mockReset();
+    runZipCompileMock.mockReset();
+    if (!URL.createObjectURL) URL.createObjectURL = vi.fn(() => 'blob:mock');
+    if (!URL.revokeObjectURL) URL.revokeObjectURL = vi.fn();
+    global.fetch = vi.fn().mockRejectedValue(new Error('no network'));
+  });
+
+  it('1) 默认 .tex 模式；切 zip → zip 上传区 + 打包建议 + inspect 按钮', async () => {
+    const pinia = createPinia();
+    setActivePinia(pinia);
+    const wrapper = mount(ReformatPanel, { global: { plugins: [pinia] } });
+    expect(wrapper.find('[data-testid="rf-mode-tex"]').classes()).toContain('active');
+    expect(wrapper.find('[data-testid="rf-zip-inspect-btn"]').exists()).toBe(false);
+    // tex 提交按钮仍在
+    expect(wrapper.findAll('button').some((b) => b.text() === '开始自动重排版')).toBe(true);
+
+    await wrapper.find('[data-testid="rf-mode-zip"]').trigger('click');
+    const zipBtn = wrapper.find('[data-testid="rf-zip-inspect-btn"]');
+    expect(zipBtn.exists()).toBe(true);
+    expect(zipBtn.attributes('disabled')).toBeDefined(); // 未选文件不可点
+    expect(wrapper.text()).toContain('打包建议：main.tex 放 zip 根目录');
+    // tex 提交按钮消失（互斥）
+    expect(wrapper.findAll('button').some((b) => b.text() === '开始自动重排版')).toBe(false);
+  });
+
+  it('2) 选 .zip → inspect 成功 → 摘要 + 编译按钮', async () => {
+    inspectZipMock.mockResolvedValue(INSPECT_OK);
+    const { wrapper, edu } = await mountZipPanel(null);
+    await pickZip(wrapper, edu);
+    await wrapper.find('[data-testid="rf-zip-inspect-btn"]').trigger('click');
+    await vi.waitFor(() => {
+      expect(wrapper.find('[data-testid="rf-zip-meta"]').exists()).toBe(true);
+    });
+    expect(inspectZipMock).toHaveBeenCalledTimes(1);
+    const meta = wrapper.find('[data-testid="rf-zip-meta"]');
+    expect(meta.text()).toContain('main.tex');
+    expect(meta.text()).toContain('文件 5 个');
+    expect(meta.text()).toContain('1 个文件已跳过');
+    expect(wrapper.find('[data-testid="rf-zip-skipped"]').text()).toContain('__MACOSX');
+    expect(wrapper.find('[data-testid="rf-zip-compile-btn"]').exists()).toBe(true);
+  });
+
+  it('3) inspect 失败（ZIP_UNSAFE）→ 错误展示', async () => {
+    inspectZipMock.mockRejectedValue(
+      new ApiError('zip 含危险条目：evil.sh', { code: 'ZIP_UNSAFE', status: 200 }),
+    );
+    const { wrapper, edu } = await mountZipPanel(null);
+    await pickZip(wrapper, edu);
+    await wrapper.find('[data-testid="rf-zip-inspect-btn"]').trigger('click');
+    await vi.waitFor(() => {
+      expect(wrapper.find('[data-testid="rf-zip-error"]').exists()).toBe(true);
+    });
+    expect(wrapper.find('[data-testid="rf-zip-error"]').text()).toContain('evil.sh');
+    expect(wrapper.find('[data-testid="rf-zip-meta"]').exists()).toBe(false);
+  });
+
+  it('4) 编译 → loading → 成功：iframe 预览 + 耗时', async () => {
+    inspectZipMock.mockResolvedValue(INSPECT_OK);
+    let resolveRun;
+    runZipCompileMock.mockReturnValue(new Promise((r) => { resolveRun = r; }));
+    const { wrapper, edu } = await mountZipPanel(null);
+    await pickZip(wrapper, edu);
+    await wrapper.find('[data-testid="rf-zip-inspect-btn"]').trigger('click');
+    await vi.waitFor(() => {
+      expect(wrapper.find('[data-testid="rf-zip-compile-btn"]').exists()).toBe(true);
+    });
+    await wrapper.find('[data-testid="rf-zip-compile-btn"]').trigger('click');
+    await wrapper.vm.$nextTick();
+    expect(wrapper.find('[data-testid="rf-compile-loading"]').exists()).toBe(true);
+
+    resolveRun({
+      ok: true,
+      compile_id: 'aabbccddeeff',
+      pdf_url: '/api/review/compile/zip/aabbccddeeff/pdf',
+      log_url: '/api/review/compile/zip/aabbccddeeff/log',
+      meta: { seconds: 3.2, pdf_bytes: 2048, project: true },
+    });
+    await vi.waitFor(() => {
+      expect(wrapper.find('[data-testid="rf-pdf-frame"]').exists()).toBe(true);
+    });
+    expect(wrapper.find('[data-testid="rf-compile-secs"]').text()).toContain('3.2 秒');
+    expect(wrapper.find('[data-testid="rf-download-pdf"]').exists()).toBe(true);
+  });
+
+  it('5) 编译失败：错误摘要 + log 折叠区 + 查看完整 log', async () => {
+    inspectZipMock.mockResolvedValue(INSPECT_OK);
+    const compileErr = new ApiError('LaTeX 源码有语法错误', {
+      code: 'COMPILE_FAILED', status: 200,
+    });
+    compileErr.detail = 'l.12 \\badcmd'; // unwrap 从 error.detail 挂载（log 尾）
+    runZipCompileMock.mockRejectedValue(compileErr);
+    const { wrapper, edu } = await mountZipPanel(null);
+    await pickZip(wrapper, edu);
+    await wrapper.find('[data-testid="rf-zip-inspect-btn"]').trigger('click');
+    await vi.waitFor(() => {
+      expect(wrapper.find('[data-testid="rf-zip-compile-btn"]').exists()).toBe(true);
+    });
+    await wrapper.find('[data-testid="rf-zip-compile-btn"]').trigger('click');
+    await vi.waitFor(() => {
+      expect(wrapper.find('[data-testid="rf-compile-error"]').exists()).toBe(true);
+    });
+    expect(wrapper.find('[data-testid="rf-compile-error"]').text()).toContain('语法错误');
+    expect(wrapper.find('[data-testid="rf-log-body"]').text()).toContain('l.12');
+    expect(wrapper.find('[data-testid="rf-download-log"]').exists()).toBe(true);
+  });
+
+  it('6) 模式互斥：切回 .tex 清 zip 状态（inspect 摘要消失）', async () => {
+    inspectZipMock.mockResolvedValue(INSPECT_OK);
+    const { wrapper, edu } = await mountZipPanel(null);
+    await pickZip(wrapper, edu);
+    await wrapper.find('[data-testid="rf-zip-inspect-btn"]').trigger('click');
+    await vi.waitFor(() => {
+      expect(wrapper.find('[data-testid="rf-zip-meta"]').exists()).toBe(true);
+    });
+    await wrapper.find('[data-testid="rf-mode-tex"]').trigger('click');
+    expect(wrapper.find('[data-testid="rf-zip-meta"]').exists()).toBe(false);
+    expect(edu.zipInspect).toBeNull();
+    expect(edu.zipFile).toBeNull();
+    // tex 上传区回来了
+    expect(wrapper.findAll('button').some((b) => b.text() === '开始自动重排版')).toBe(true);
+  });
+});
diff --git a/ui/src/api/review.js b/ui/src/api/review.js
index ca4bddb..d0cdd5d 100644
--- a/ui/src/api/review.js
+++ b/ui/src/api/review.js
@@ -19,6 +19,9 @@ function unwrap(promise) {
         degraded: !!payload.error.degraded,
       });
       if (payload.error.detail) err.detail = payload.error.detail; // 编译失败的 log 尾等
+      // P4：项目编译失败信封带 compile_id + log_url（补充 3，前端"查看完整 log"用）
+      if (payload.compile_id) err.compileId = payload.compile_id;
+      if (payload.log_url) err.logUrl = payload.log_url;
       throw err;
     }
     return payload;
@@ -104,6 +107,23 @@ export function compileTex(formData, opts = {}) {
   return unwrap(post(`${BASE}/compile`, formData, opts));
 }
 
+/** P4 POST /api/review/compile/inspect（multipart .zip ≤50MB，两段式之①）
+ *  → {ok, meta:{job_id, main, stats:{files,tex,images,cls,bib,other,bytes},
+ *     skipped:[{name,reason}], skipped_count, created_at}}
+ *  错误信封：VALIDATION / ZIP_UNSAFE / ZIP_BOMB / ZIP_INVALID（HTTP 200）。
+ *  job_id 1 小时 TTL；run 前不占编译队列。 */
+export function inspectZip(formData, opts = {}) {
+  return unwrap(post(`${BASE}/compile/inspect`, formData, opts));
+}
+
+/** P4 POST /api/review/compile/run（JSON {job_id}，两段式之②）
+ *  → 与 compileTex 同构信封 {ok, compile_id, pdf_url, log_url, meta}；
+ *  pdf/log 路径带 /zip/ 前缀。失败（COMPILE_FAILED/TIMEOUT）也带 compile_id+log_url。
+ *  QUEUE_FULL → HTTP 429（此时 job 未消费，可直接重试）。 */
+export function runZipCompile(payload, opts = {}) {
+  return unwrap(post(`${BASE}/compile/run`, payload, opts));
+}
+
 /** ⑤ format-check 专用错误文案：解档/校验类 PARSE_FAILED/VALIDATION 用后端原话
  * （与 presubmit 的"扫描件"提示是不同语境，不能复用 CODE_HINTS），其余走统一口径。 */
 export function formatErrorMessage(err) {
@@ -119,9 +139,11 @@ const CODE_HINTS = {
   VALIDATION: null,
   PARSE_FAILED: '论文解析失败：可能是扫描件/图片型 PDF，请换文本型 PDF。',
   UPSTREAM_DOWN: '审稿模型暂时不可用，请稍后重试。',
-  SEED_UNAVAILABLE: '期刊库未就绪（种子数据缺失），请联系管理员。',
+  SEED_UNAVAILABLE: '期刊库就绪中（种子数据缺失），请稍后再试。',
   TIMEOUT: '请求超时，请稍后重试。',
   NETWORK: '网络异常，请检查连接后重试。',
+  // P3b 编译：固定口径（后端 message 带动态 pending 数，此处按规范统一为"最多 5 个"）
+  QUEUE_FULL: '编译队列已满（最多 5 个任务），请稍后重试',
 };
 
 /** ApiError（或任意错误）→ 用户可读文案。degraded 由调用方读 err.degraded 走降级横幅样式。 */
diff --git a/ui/src/components/edu/panels/ReformatPanel.vue b/ui/src/components/edu/panels/ReformatPanel.vue
index 8627302..2c92013 100644
--- a/ui/src/components/edu/panels/ReformatPanel.vue
+++ b/ui/src/components/edu/panels/ReformatPanel.vue
@@ -9,10 +9,14 @@
      选定后 target = 目录 id，后端经 journal_directory 回链）。
       结果三 Tab：修改后源码（Blob 下载）/ Diff 报告（按 rule_key 着色、
       按 action 计数：modified=已修改、warning=建议·橙色·不计入）/
-      编译 PDF（P3 决策暂缓：仅「开发中」占位，不触发编译；后端 tectonic
-      API（P3a）保留备用，前端不暴露编译入口，引导下载 .tex 去 Overleaf/
-      本地编译）。
-      结果跨菜单保留（store reformatResult）；样式 rf- 前缀，零新增依赖。 -->
+      编译 PDF（P3b）：POST /compile {job_id}（tectonic 单槽队列，约 10-30 秒，
+      首次拉 bundle 1-3 分钟——store.compileFirstHint 黄条提示可切面板后台跑）；
+      成功→blob URL 内嵌 iframe 预览 + 下载 + 耗时/重编；失败→错误摘要 +
+      log 尾 200 行折叠 + 完整 log 下载；QUEUE_FULL→固定文案。
+      P4 项目 zip（上传区模式切换，与单文件互斥）：POST /compile/inspect（≤50MB，
+      1h TTL，run 前不占编译队列）→ 主文件/统计/跳过文件摘要 → POST /compile/run
+      （原子消费 inspect；信封与 P3b 同构复用 compile* 字段；失败也带 log_url）。
+      结果跨菜单保留（store reformatResult/compile*）；样式 rf- 前缀，零新增依赖。 -->
 <script setup>
 import { computed, onMounted, ref, watch } from 'vue';
 import { getDirectory, reviewErrorMessage } from '../../../api/review.js';
@@ -28,7 +32,7 @@ const SOURCE_LABEL = {
 };
 
 const fileInput = ref(null);
-const file = ref(null);
+const file = ref(edu.reformatFile || null); // File 存 store（换期刊重排不丢；× 移除才清空）
 const fileError = ref('');
 const dragging = ref(false);
 const tab = ref('source'); // 'source' | 'diff' | 'pdf'
@@ -117,6 +121,31 @@ const structWarnings = computed(() => result.value?.warnings || []);
 const modifiedCount = computed(() => changes.value.filter((c) => c.action === 'modified').length);
 const suggestCount = computed(() => changes.value.filter((c) => c.action === 'warning').length);
 const sourceLabel = computed(() => SOURCE_LABEL[meta.value?.rules_source] || meta.value?.rules_source || '—');
+// 目标期刊规则摘要：只显示有值字段（null 不显示）；全 null → 明确说明无强制约束。
+// 目的：diff=0 时（如 Frontiers / GB↔BMC 互切）也能看到"该刊要求什么"，消除"没生效"错觉。
+const _REFS_LABEL = { vancouver: 'Vancouver 引用', apa: 'APA 引用', author_year: '作者-年份引用' };
+const rulesSummary = computed(() => {
+  const r = meta.value?.rules;
+  if (!r || typeof r !== 'object') return null;
+  const parts = [];
+  const ls = r.min_line_spacing;
+  if (typeof ls === 'number' && ls > 0) {
+    if (ls <= 1.05) parts.push('单倍行距');
+    else if (Math.abs(ls - 1.5) < 0.01) parts.push('1.5 倍行距');
+    else if (ls >= 1.95) parts.push('双倍行距');
+    else parts.push(`行距 ≥${ls} 倍`);
+  }
+  if (r.refs_style && _REFS_LABEL[r.refs_style]) parts.push(_REFS_LABEL[r.refs_style]);
+  if (typeof r.min_font_pt === 'number') parts.push(`字号 ≥${r.min_font_pt}pt`);
+  if (typeof r.min_margin_mm === 'number') parts.push(`边距 ≥${r.min_margin_mm}mm`);
+  if (!parts.length) return '该刊官网未规定明确格式要求，无强制约束';
+  return parts.join(' · ');
+});
+// 与 diff 的关系：有修改 → "已修改 N 处"；0 修改 → "样本已满足该刊要求，无需修改"
+const rulesStatusText = computed(() => {
+  if (modifiedCount.value > 0) return `已修改 ${modifiedCount.value} 处`;
+  return '样本已满足该刊要求，无需修改';
+});
 // ISO 时间戳 → "10-12 15:25"（内部字段不裸露；helper 规则见 UI 注释）
 const generatedShort = computed(() => {
   const s = meta.value?.generated_at;
@@ -129,6 +158,137 @@ function copyJobId() {
   if (id && navigator.clipboard) navigator.clipboard.writeText(String(id)).catch(() => {});
 }
 
+/* —— P3b 编译 PDF（状态全在 store → 切菜单/切 Tab 编译继续跑）—— */
+const compiling = computed(() => edu.compileStatus === 'loading');
+const compileReady = computed(() => edu.compileStatus === 'ready' && !!edu.compileResult);
+const compileErrored = computed(() => edu.compileStatus === 'error');
+const compileMeta = computed(() => edu.compileResult?.meta || null);
+const pdfSrc = computed(() => edu.compilePdfUrl || edu.compileResult?.pdf_url || '');
+const pdfSizeText = computed(() => {
+  const b = compileMeta.value?.pdf_bytes;
+  if (b == null) return '';
+  return b >= 1048576 ? `${(b / 1048576).toFixed(1)} MB` : `${Math.ceil(b / 1024)} KB`;
+});
+const compileLog = computed(() => edu.compileLogTail || '');
+const logCollapsed = ref(true); // log 折叠区（默认收起）
+const firstHintDismissed = ref(false);
+const showFirstHint = computed(() =>
+  edu.compileFirstHint && compiling.value && !firstHintDismissed.value,
+);
+
+function startCompile() {
+  const jid = result.value?.job_id;
+  if (!jid || compiling.value) return;
+  logCollapsed.value = true;
+  edu.submitCompile(jid); // 不 await：按钮/进度由 store 状态驱动，切面板不中断
+}
+function downloadPdf() {
+  const href = pdfSrc.value;
+  if (!href) return;
+  const a = document.createElement('a');
+  a.href = href;
+  a.download = `${result.value?.job_id || 'paper'}.pdf`;
+  document.body.appendChild(a);
+  a.click();
+  a.remove();
+}
+function downloadFullLog() {
+  // 成功：信封带 log_url；失败信封不带——job_id 即 anchor_id，log 同目录可拼路径
+  const jid = result.value?.job_id;
+  const href = edu.compileResult?.log_url || (jid ? `/api/review/compile/${jid}/log` : '');
+  if (!href) return;
+  const a = document.createElement('a');
+  a.href = href;
+  a.download = `${jid || 'compile'}.log`;
+  document.body.appendChild(a);
+  a.click();
+  a.remove();
+}
+
+/* —— P4 项目 zip（两段式；与单文件模式互斥，切换即清对侧状态）—— */
+const uploadMode = ref('tex'); // 'tex' | 'zip'
+const zipInput = ref(null);
+const zipInspecting = computed(() => edu.zipInspectStatus === 'loading');
+const zipInspected = computed(() => edu.zipInspectStatus === 'ready' && !!edu.zipInspect);
+const zipError = computed(() => edu.zipInspectError || '');
+const MAX_ZIP_SIZE = 50 * 1024 * 1024; // 与后端 REVIEW_MAX_ZIP_BYTES 一致
+
+function switchMode(mode) {
+  if (uploadMode.value === mode) return;
+  uploadMode.value = mode;
+  fileError.value = '';
+  if (mode === 'zip') {
+    edu.clearReformat(); // 互斥：zip 编译结果与单文件编译共用 compile* 字段
+  } else {
+    edu.clearZip();
+  }
+}
+
+function acceptZip(f) {
+  if (!f) return;
+  if (!String(f.name || '').toLowerCase().endsWith('.zip')) {
+    edu.zipInspectStatus = 'error';
+    edu.zipInspectError = '仅支持 .zip 项目包';
+    return;
+  }
+  if (!f.size) {
+    edu.zipInspectStatus = 'error';
+    edu.zipInspectError = '上传文件为空';
+    return;
+  }
+  if (f.size > MAX_ZIP_SIZE) {
+    edu.zipInspectStatus = 'error';
+    edu.zipInspectError = 'zip 超过 50MB 上限';
+    return;
+  }
+  edu.zipFile = f;
+  edu.zipInspectStatus = 'idle'; // 换文件 → 旧 inspect 失效
+  edu.zipInspect = null;
+  edu.zipInspectError = null;
+  edu.clearCompile();
+}
+function onZipPick(e) {
+  acceptZip(e.target.files?.[0]);
+  e.target.value = '';
+}
+function onZipDrop(e) {
+  dragging.value = false;
+  acceptZip(e.dataTransfer?.files?.[0]);
+}
+function removeZip() {
+  edu.clearZip(); // 唯一清空入口："×" 移除
+}
+async function startZipInspect() {
+  if (!edu.zipFile || zipInspecting.value) return;
+  await edu.submitZipInspect(); // 不 await 也可，但保持与其他面板一致写法
+}
+function startZipCompile() {
+  logCollapsed.value = true;
+  edu.submitZipCompile(); // 不 await：状态由 store 驱动，切面板不中断
+}
+function downloadZipPdf() {
+  const href = pdfSrc.value;
+  if (!href) return;
+  const cid = edu.compileResult?.compile_id || 'project';
+  const a = document.createElement('a');
+  a.href = href;
+  a.download = `${cid}.pdf`;
+  document.body.appendChild(a);
+  a.click();
+  a.remove();
+}
+function downloadZipLog() {
+  const cid = edu.compileResult?.compile_id;
+  const href = edu.compileResult?.log_url || (cid ? `/api/review/compile/zip/${cid}/log` : '');
+  if (!href) return;
+  const a = document.createElement('a');
+  a.href = href;
+  a.download = `${cid || 'compile'}.log`;
+  document.body.appendChild(a);
+  a.click();
+  a.remove();
+}
+
 onMounted(() => {
   if (edu.journalsStatus === 'idle') edu.fetchJournals(); // 精选期刊下拉数据源
   // 恢复的 target 是目录刊但无选中记录（历史草稿）→ 回落通用规则
@@ -154,6 +314,7 @@ function acceptFile(f) {
     return;
   }
   file.value = f;
+  edu.reformatFile = f; // 进 store：换期刊/切菜单重排不丢
 }
 function onPick(e) {
   acceptFile(e.target.files?.[0]);
@@ -165,6 +326,7 @@ function onDrop(e) {
 }
 function removeFile() {
   file.value = null;
+  edu.reformatFile = null; // 唯一清空入口："×" 移除
 }
 
 async function submit() {
@@ -177,7 +339,7 @@ async function submit() {
 }
 function reset() {
   edu.clearReformat();
-  file.value = null;
+  // 不清 file——换期刊重排时保留已上传文件（仅"×"移除才清）
   fileError.value = '';
   tab.value = 'source';
 }
@@ -216,6 +378,11 @@ function download() {
           复制任务 ID
         </button>
       </div>
+      <!-- 目标期刊规则摘要：diff=0 时也能看到"该刊要求什么"（次级文字，不抢 diff 主视觉） -->
+      <p v-if="rulesSummary" class="rf-rules" data-testid="rf-rules-summary">
+        📋 该刊规则：{{ rulesSummary }}
+        <span class="rf-rules-status">（{{ rulesStatusText }}）</span>
+      </p>
       <p v-if="meta?.rules_note" class="rf-note" role="note">{{ meta.rules_note }}</p>
 
       <!-- 汇总：已修改 / 建议（橙，不计入修改）/ 结构提示 -->
@@ -269,21 +436,95 @@ function download() {
         </article>
       </div>
 
-      <!-- 编译 PDF（P3 暂缓）：「开发中」占位，不触发编译；后端 P3a API 保留备用 -->
+      <!-- ========== 编译 PDF（P3b） ========== -->
       <div v-else class="rf-compile">
-        <div class="rf-wip" role="note">
-          <p class="rf-wip-main">
-            PDF 编译功能开发中，暂时请下载修改后的 .tex 文件，在 Overleaf 或本地编译。
-            后续将支持多文件工程和图片上传。
-          </p>
-          <p class="rf-wip-sub">已提供逐行修改对照（Diff 报告）与修改后源码下载。</p>
-          <a
-            class="rf-wip-feedback"
-            href="http://192.168.0.175:3000/admin/PlantAI-rag-new/issues"
-            target="_blank"
-            rel="noopener noreferrer"
-          >反馈需求 →</a>
+        <!-- 无 job_id（未完成重排版）→ 引导 -->
+        <div v-if="!result?.job_id" class="rf-wip" role="note" data-testid="rf-compile-guide">
+          <p class="rf-wip-main">请先完成重排版再编译。</p>
+          <p class="rf-wip-sub">编译基于重排版后的 .tex 源码，重排版成功后此页会出现「编译 PDF」按钮。</p>
         </div>
+
+        <template v-else>
+          <!-- 首次编译慢提示（loading 期间显示，可手动关闭） -->
+          <div v-if="showFirstHint" class="rf-first-hint" role="note" data-testid="rf-first-hint">
+            <span>
+              首次编译需要 1-3 分钟（下载 TeX 环境），后续编译秒级。
+              可以切到其他面板，编译会在后台继续。
+            </span>
+            <button class="rf-hint-x" type="button" aria-label="关闭提示"
+              @click="firstHintDismissed = true">×</button>
+          </div>
+
+          <!-- 操作行：编译按钮 / 下载 / 重新编译 -->
+          <div class="rf-compile-bar">
+            <button
+              v-if="!compileReady && !compileErrored"
+              class="rf-compile-btn" type="button"
+              data-testid="rf-compile-btn"
+              :disabled="compiling"
+              @click="startCompile"
+            >
+              {{ compiling ? '编译中…（首次约 1-3 分钟）' : '编译 PDF' }}
+            </button>
+            <template v-if="compileReady">
+              <button class="rf-compile-btn" type="button" data-testid="rf-download-pdf"
+                @click="downloadPdf">下载 PDF</button>
+              <button class="rf-compile-btn rf-compile-ghost" type="button"
+                data-testid="rf-recompile"
+                :disabled="compiling" @click="startCompile">
+                {{ compiling ? '编译中…' : '重新编译' }}
+              </button>
+            </template>
+            <template v-if="compileErrored">
+              <button class="rf-compile-btn" type="button" data-testid="rf-recompile"
+                :disabled="compiling" @click="startCompile">
+                {{ compiling ? '编译中…' : '重新编译' }}
+              </button>
+              <button class="rf-compile-btn rf-compile-ghost" type="button"
+                data-testid="rf-download-log" @click="downloadFullLog">查看完整 log</button>
+            </template>
+            <span v-if="compileReady && pdfSizeText" class="rf-compile-size"
+              data-testid="rf-pdf-size">{{ pdfSizeText }}</span>
+          </div>
+
+          <!-- loading：动画进度（后端无 stage，不确定时长） -->
+          <div v-if="compiling" class="rf-compile-loading" role="status"
+            data-testid="rf-compile-loading">
+            <span class="rf-compile-spin" aria-hidden="true" />
+            <p class="rf-state-msg">
+              编译中…（tectonic 单槽队列，常规 10-30 秒；首次 1-3 分钟）
+              可切换到其他面板，编译在后台继续。
+            </p>
+          </div>
+
+          <!-- 成功：内嵌 PDF 预览（blob URL） -->
+          <div v-else-if="compileReady" class="rf-compile-ready">
+            <iframe
+              class="rf-compile-frame" :src="pdfSrc" title="PDF 预览"
+              data-testid="rf-pdf-frame"
+            />
+            <div class="rf-compile-foot">
+              <span class="rf-compile-secs" data-testid="rf-compile-secs">
+                编译耗时 {{ compileMeta?.seconds != null ? `${Number(compileMeta.seconds).toFixed(1)} 秒` : '—' }}
+              </span>
+            </div>
+          </div>
+
+          <!-- 失败：错误摘要 + log 尾折叠 + 完整 log 下载 -->
+          <div v-else-if="compileErrored" class="rf-compile-error" role="alert"
+            data-testid="rf-compile-error">
+            <p class="rf-compile-msg">{{ edu.compileError }}</p>
+            <details
+              v-if="compileLog" class="rf-log" :open="!logCollapsed"
+              data-testid="rf-log-details"
+            >
+              <summary class="rf-log-sum" @click="logCollapsed = !logCollapsed">
+                编译日志（尾 200 行）
+              </summary>
+              <pre class="rf-log-body" data-testid="rf-log-body">{{ compileLog }}</pre>
+            </details>
+          </div>
+        </template>
       </div>
     </template>
 
@@ -304,6 +545,145 @@ function download() {
 
     <!-- ========== ④ 上传区 ========== -->
     <div v-else class="rf-upload">
+      <!-- P4 模式切换：单文件 .tex（P3 重排版链路）| 项目 .zip（两段式编译，不经重排版） -->
+      <div class="rf-modes" role="tablist" aria-label="上传模式">
+        <button
+          class="rf-mode" :class="{ active: uploadMode === 'tex' }" type="button"
+          role="tab" :aria-selected="uploadMode === 'tex'" data-testid="rf-mode-tex"
+          @click="switchMode('tex')"
+        >单文件 .tex</button>
+        <button
+          class="rf-mode" :class="{ active: uploadMode === 'zip' }" type="button"
+          role="tab" :aria-selected="uploadMode === 'zip'" data-testid="rf-mode-zip"
+          @click="switchMode('zip')"
+        >项目 .zip</button>
+      </div>
+
+      <!-- ========== ④-zip 项目上传（P4 两段式） ========== -->
+      <template v-if="uploadMode === 'zip'">
+        <div
+          class="rf-drop"
+          :class="{ dragging, filled: !!edu.zipFile }"
+          role="button"
+          tabindex="0"
+          @click="zipInput.click()"
+          @keydown.enter="zipInput.click()"
+          @dragover.prevent="dragging = true"
+          @dragleave.prevent="dragging = false"
+          @drop.prevent="onZipDrop"
+        >
+          <input
+            ref="zipInput"
+            class="rf-file-input"
+            type="file"
+            accept=".zip"
+            @click.stop
+            @change="onZipPick"
+          />
+          <template v-if="edu.zipFile">
+            <span class="rf-file-name">🗜 {{ edu.zipFile.name }} · {{ (edu.zipFile.size / 1024 / 1024).toFixed(1) }} MB</span>
+            <button class="rf-remove" type="button" title="移除文件" @click.stop="removeZip">×</button>
+          </template>
+          <template v-else>
+            <span class="rf-drop-main">拖拽 LaTeX 项目（.zip）到此处，或点击选择</span>
+            <span class="rf-hint">打包建议：main.tex 放 zip 根目录，图片用相对路径引用，不要包含 .git / node_modules / 无关大文件。</span>
+          </template>
+        </div>
+        <p v-if="zipError" class="rf-file-error" data-testid="rf-zip-error">{{ zipError }}</p>
+
+        <button
+          class="rf-submit"
+          type="button"
+          :disabled="!edu.zipFile || zipInspecting"
+          data-testid="rf-zip-inspect-btn"
+          @click="startZipInspect"
+        >
+          {{ zipInspecting ? '检查中…' : '上传并检查' }}
+        </button>
+
+        <!-- inspect 通过：项目摘要 + 编译入口 + 编译结果（复用 P3b compile* 状态） -->
+        <template v-if="zipInspected">
+          <div class="rf-zip-meta" data-testid="rf-zip-meta">
+            📦 主文件：<code>{{ edu.zipInspect?.main }}</code>
+            · 文件 {{ edu.zipInspect?.stats?.files }} 个
+            · .tex {{ edu.zipInspect?.stats?.tex }}
+            <template v-if="edu.zipInspect?.stats?.images"> · 图片 {{ edu.zipInspect.stats.images }}</template>
+            <template v-if="edu.zipInspect?.stats?.cls"> · .cls {{ edu.zipInspect.stats.cls }}</template>
+            <template v-if="edu.zipInspect?.stats?.bib"> · .bib {{ edu.zipInspect.stats.bib }}</template>
+            <template v-if="edu.zipInspect?.skipped_count">
+              · <span class="rf-zip-skipped">{{ edu.zipInspect.skipped_count }} 个文件已跳过</span>
+            </template>
+          </div>
+          <p v-if="edu.zipInspect?.skipped_count" class="rf-zip-skipped-list" data-testid="rf-zip-skipped">
+            已跳过（不参与编译）：{{ (edu.zipInspect?.skipped || []).map((s) => s.name).join('、') }}
+          </p>
+
+          <div class="rf-compile-bar">
+            <button
+              v-if="!compileReady && !compileErrored"
+              class="rf-compile-btn" type="button"
+              data-testid="rf-zip-compile-btn"
+              :disabled="compiling"
+              @click="startZipCompile"
+            >
+              {{ compiling ? '编译中…' : '编译 PDF' }}
+            </button>
+            <template v-if="compileReady">
+              <button class="rf-compile-btn" type="button" data-testid="rf-download-pdf"
+                @click="downloadZipPdf">下载 PDF</button>
+              <button class="rf-compile-btn rf-compile-ghost" type="button"
+                data-testid="rf-recompile" :disabled="compiling" @click="startZipCompile">
+                {{ compiling ? '编译中…' : '重新编译' }}
+              </button>
+            </template>
+            <template v-if="compileErrored">
+              <button class="rf-compile-btn" type="button" data-testid="rf-recompile"
+                :disabled="compiling" @click="startZipCompile">
+                {{ compiling ? '编译中…' : '重新编译' }}
+              </button>
+              <button class="rf-compile-btn rf-compile-ghost" type="button"
+                data-testid="rf-download-log" @click="downloadZipLog">查看完整 log</button>
+            </template>
+            <span v-if="compileReady && pdfSizeText" class="rf-compile-size"
+              data-testid="rf-pdf-size">{{ pdfSizeText }}</span>
+          </div>
+
+          <div v-if="compiling" class="rf-compile-loading" role="status"
+            data-testid="rf-compile-loading">
+            <span class="rf-compile-spin" aria-hidden="true" />
+            <p class="rf-state-msg">编译中…（tectonic 单槽队列，常规 10-30 秒；项目首次编译需下载宏包可能更慢）</p>
+          </div>
+
+          <div v-else-if="compileReady" class="rf-compile-ready">
+            <iframe
+              class="rf-compile-frame" :src="pdfSrc" title="PDF 预览"
+              data-testid="rf-pdf-frame"
+            />
+            <div class="rf-compile-foot">
+              <span class="rf-compile-secs" data-testid="rf-compile-secs">
+                编译耗时 {{ compileMeta?.seconds != null ? `${Number(compileMeta.seconds).toFixed(1)} 秒` : '—' }}
+              </span>
+            </div>
+          </div>
+
+          <div v-else-if="compileErrored" class="rf-compile-error" role="alert"
+            data-testid="rf-compile-error">
+            <p class="rf-compile-msg">{{ edu.compileError }}</p>
+            <details
+              v-if="compileLog" class="rf-log" :open="!logCollapsed"
+              data-testid="rf-log-details"
+            >
+              <summary class="rf-log-sum" @click="logCollapsed = !logCollapsed">
+                编译日志（尾 200 行）
+              </summary>
+              <pre class="rf-log-body" data-testid="rf-log-body">{{ compileLog }}</pre>
+            </details>
+          </div>
+        </template>
+      </template>
+
+      <!-- ========== ④-tex 单文件上传（P3 链路，零改动） ========== -->
+      <template v-else>
       <div
         class="rf-drop"
         :class="{ dragging, filled: !!file }"
@@ -387,6 +767,7 @@ function download() {
         开始自动重排版
       </button>
       <p v-if="dirMode && !actualTarget" class="rf-dirhint">请从搜索结果中选择期刊后提交</p>
+      </template>
     </div>
   </section>
 </template>
@@ -416,6 +797,15 @@ function download() {
   font-size: 12.5px;
   color: var(--pa-ink-muted);
 }
+/* 规则摘要：次级文字（同 rf-meta 色阶），与汇总条的计数视觉区分 */
+.rf-rules {
+  margin: 4px 0 0;
+  font-size: 12.5px;
+  color: var(--pa-ink-muted);
+}
+.rf-rules-status {
+  color: var(--pa-ink-subtle);
+}
 .rf-copy-id {
   margin-left: 8px;
   padding: 1px 8px;
@@ -625,12 +1015,6 @@ function download() {
   color: var(--pa-warning);
 }
 
-/* 编译 PDF（P3 暂缓：开发中占位） */
-.rf-compile {
-  display: flex;
-  flex-direction: column;
-  gap: 10px;
-}
 .rf-wip {
   display: flex;
   flex-direction: column;
@@ -652,13 +1036,126 @@ function download() {
   font-size: 12.5px;
   color: var(--pa-ink-subtle);
 }
-.rf-wip-feedback {
-  font-size: 12.5px;
-  font-weight: 600;
-  color: var(--pa-g-from);
-  text-decoration: none;
+
+/* 编译 PDF（P3b） */
+.rf-compile {
+  display: flex;
+  flex-direction: column;
+  gap: 10px;
+}
+.rf-first-hint {
+  display: flex;
+  justify-content: space-between;
+  align-items: flex-start;
+  gap: 10px;
+  padding: 10px 14px;
+  border: 1px solid color-mix(in srgb, var(--pa-warning) 45%, transparent);
+  border-radius: var(--pa-r-md);
+  background: color-mix(in srgb, var(--pa-warning) 12%, transparent);
+  color: var(--pa-ink);
+  font-size: 12.5px;
+  line-height: 1.6;
+}
+.rf-hint-x {
+  border: none;
+  background: transparent;
+  color: var(--pa-ink-muted);
+  font-size: 15px;
+  line-height: 1;
+  cursor: pointer;
+  padding: 0 2px;
+}
+.rf-hint-x:hover { color: var(--pa-ink); }
+.rf-compile-bar {
+  display: flex;
+  gap: 8px;
+  align-items: center;
+  flex-wrap: wrap;
+}
+.rf-compile-btn {
+  padding: 7px 18px;
+  border: none;
+  border-radius: var(--pa-r-md);
+  background: var(--pa-gradient);
+  color: #fff;
+  font-size: 13px;
+  font-weight: 600;
+  cursor: pointer;
+}
+.rf-compile-btn:disabled { opacity: .6; cursor: not-allowed; }
+.rf-compile-btn:not(:disabled):hover { filter: brightness(1.08); }
+.rf-compile-ghost {
+  background: transparent;
+  border: 1px solid var(--pa-hairline-strong);
+  color: var(--pa-ink);
+}
+.rf-compile-size {
+  font-size: 12px;
+  color: var(--pa-ink-subtle);
+}
+.rf-compile-loading {
+  display: flex;
+  gap: 12px;
+  align-items: center;
+  padding: 14px 16px;
+  background: var(--pa-surface-2);
+  border: 1px solid var(--pa-hairline);
+  border-radius: var(--pa-r-lg);
+}
+.rf-compile-spin {
+  flex: none;
+  width: 18px;
+  height: 18px;
+  border: 2px solid var(--pa-hairline-strong);
+  border-top-color: var(--pa-g-from);
+  border-radius: 50%;
+  animation: rf-spin .8s linear infinite;
+}
+@keyframes rf-spin { to { transform: rotate(360deg); } }
+.rf-compile-ready { display: flex; flex-direction: column; gap: 8px; }
+.rf-compile-frame {
+  width: 100%;
+  height: 560px;
+  border: 1px solid var(--pa-hairline);
+  border-radius: var(--pa-r-lg);
+  background: var(--pa-surface-2);
+}
+.rf-compile-foot { display: flex; gap: 12px; align-items: center; }
+.rf-compile-secs { font-size: 12px; color: var(--pa-ink-subtle); }
+.rf-compile-error {
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+  padding: 12px 16px;
+  background: color-mix(in srgb, var(--pa-error) 8%, transparent);
+  border: 1px solid color-mix(in srgb, var(--pa-error) 40%, transparent);
+  border-radius: var(--pa-r-lg);
+}
+.rf-compile-msg {
+  margin: 0;
+  font-size: 13px;
+  color: var(--pa-error);
+}
+.rf-log { border-top: 1px dashed var(--pa-hairline-strong); padding-top: 8px; }
+.rf-log-sum {
+  font-size: 12.5px;
+  color: var(--pa-ink-muted);
+  cursor: pointer;
+  user-select: none;
+}
+.rf-log-body {
+  margin: 8px 0 0;
+  max-height: 300px;
+  overflow: auto;
+  padding: 10px 12px;
+  background: var(--pa-code-bg);
+  border-radius: var(--pa-r-md);
+  font-size: 12px;
+  line-height: 1.55;
+  color: var(--pa-ink-muted);
+  white-space: pre-wrap;
+  word-break: break-word;
 }
-.rf-wip-feedback:hover { text-decoration: underline; }
 
 /* 状态区 */
 .rf-state {
@@ -755,6 +1252,45 @@ function download() {
   font-size: 12.5px;
   color: var(--pa-error);
 }
+/* P4 模式切换（单文件 .tex | 项目 .zip） */
+.rf-modes {
+  display: flex;
+  gap: 6px;
+}
+.rf-mode {
+  padding: 5px 14px;
+  border: 1px solid var(--pa-hairline);
+  border-radius: var(--pa-r-pill);
+  background: transparent;
+  color: var(--pa-ink-muted);
+  font-size: 12px;
+  cursor: pointer;
+}
+.rf-mode.active {
+  border-color: var(--pa-g-from);
+  background: var(--pa-surface-2);
+  color: var(--pa-ink);
+  font-weight: 600;
+}
+/* P4 zip 项目摘要（次级文字，与 rf-meta 同色阶） */
+.rf-zip-meta {
+  margin: 4px 0 0;
+  font-size: 12.5px;
+  color: var(--pa-ink-muted);
+}
+.rf-zip-meta code {
+  padding: 1px 6px;
+  border: 1px solid var(--pa-hairline);
+  border-radius: var(--pa-r-sm);
+  font-size: 12px;
+}
+.rf-zip-skipped { color: var(--pa-warning); }
+.rf-zip-skipped-list {
+  margin: 0;
+  font-size: 12px;
+  color: var(--pa-ink-subtle);
+  word-break: break-all;
+}
 .rf-label {
   font-size: 12px;
   font-weight: 500;
diff --git a/ui/src/stores/edu.js b/ui/src/stores/edu.js
index b8feb56..adee2b5 100644
--- a/ui/src/stores/edu.js
+++ b/ui/src/stores/edu.js
@@ -4,7 +4,7 @@
 //   - 进行中的请求由 store action 持有 → 面板卸载不中断；
 //   - 表单草稿存 drafts → 切菜单不丢。
 import { defineStore } from 'pinia';
-import { compileTex, formatCheck, formatErrorMessage, getConferences, getDirectory, getJournals, presubmit, recommend, reformatTex, reviewErrorMessage, rebuttalConfirm, rebuttalCreateFromPdf, rebuttalCreateJob, rebuttalDeleteJob, rebuttalDraft, rebuttalLetter, rebuttalSaveResponse } from '../api/review.js';
+import { compileTex, formatCheck, formatErrorMessage, getConferences, getDirectory, getJournals, inspectZip, presubmit, recommend, reformatTex, reviewErrorMessage, rebuttalConfirm, rebuttalCreateFromPdf, rebuttalCreateJob, rebuttalDeleteJob, rebuttalDraft, rebuttalLetter, rebuttalSaveResponse, runZipCompile } from '../api/review.js';
 
 const STORAGE_KEY = 'plantai.edu.submissions'; // D3 台账持久化（tracker 面板已解除映射，state 保留）
 // tracker 已砍（2026-10-12，仅解除 UI 映射；TrackerPanel.vue 保留在 panels/ 下可复用）
@@ -72,6 +72,9 @@ export const useEduStore = defineStore('edu', {
     // ③ presubmit 已选 PDF（File 对象，仅内存：面板卸载/切菜单不丢，error 态可直接重试；
     //    不可序列化 → 不进 localStorage；clearReport 一并清空）
     presubmitFile: null,
+    // ⑤' reformat 已选 .tex（同 presubmitFile 模式：换期刊重排不丢文件；
+    //    面板内"×"移除才清空。File 不可序列化 → 不进 localStorage）
+    reformatFile: null,
     recommend: null, // ② 推荐响应 {ok, tiers, meta}
     recommendStatus: 'idle',
     recommendError: null,
@@ -83,11 +86,19 @@ export const useEduStore = defineStore('edu', {
     reformatResult: null,
     reformatStatus: 'idle',
     reformatError: null,
-    /* —— P3a 编译 PDF（tectonic；与 reformatResult 同生命周期，重新排版即失效）—— */
-    compileResult: null,   // {ok, compile_id, pdf_url, log_url, meta}
+    /* —— P3a/P3b 编译 PDF（tectonic；与 reformatResult 同生命周期，重新排版即失效）—— */
+    compileResult: null,   // {ok, compile_id, pdf_url, log_url, meta:{seconds,pdf_bytes,...}}
     compileStatus: 'idle', // 'idle' | 'loading' | 'ready' | 'error'
     compileError: null,
     compileLogTail: '',    // COMPILE_FAILED/TIMEOUT 的 log 尾 200 行（err.detail）
+    compilePdfUrl: null,   // PDF blob URL（预览/下载，不暴露 API 路径；失败回退 pdf_url）
+    compileFirstHint: false, // 首次编译黄色提示条（编译开始到 clearCompile 前保留）
+    /* —— P4 项目 zip 两段式（inspect 暂存 1h + run 编译；run 信封与 P3b 同构，
+       复用 compile* 字段展示 PDF/log——zip 编译结果与单文件编译互斥，切换模式即清）—— */
+    zipFile: null,             // File（内存态：切菜单不丢，× 移除才清空）
+    zipInspect: null,          // inspect meta {job_id, main, stats{}, skipped[], skipped_count}
+    zipInspectStatus: 'idle',  // 'idle' | 'loading' | 'ready' | 'error'
+    zipInspectError: null,
 
     /* —— 表单草稿（切菜单不丢；四字段并存：recommend 用 abstract+prefs、
        presubmit 用 targetJournal、format 用 formatJournalId（期刊 id 下拉））—— */
@@ -426,18 +437,20 @@ export const useEduStore = defineStore('edu', {
       this.reformatError = null;
       this.clearCompile();
     },
-    /* —— P3a 编译 PDF（tectonic 单槽队列；约 10-30 秒）—— */
+    /* —— P3b 编译 PDF（tectonic 单槽队列；约 10-30 秒，首次拉 bundle 1-3 分钟）—— */
     async submitCompile(jobId) {
       if (this.compileStatus === 'loading') return null;
       this.compileStatus = 'loading';
       this.compileError = null;
       this.compileLogTail = '';
+      if (!this.compileResult) this.compileFirstHint = true; // 首次编译提示条
       const fd = new FormData();
       fd.append('job_id', jobId);
       try {
         const payload = await compileTex(fd);
         this.compileResult = payload;
         this.compileStatus = 'ready';
+        this._loadCompileBlob(payload.pdf_url); // 异步换 blob URL，失败回退直链
         return payload;
       } catch (err) {
         this.compileStatus = 'error';
@@ -446,11 +459,83 @@ export const useEduStore = defineStore('edu', {
         return null;
       }
     },
+    /** PDF → blob URL（预览/下载不暴露后端路径）；失败静默回退 pdf_url 直链 */
+    async _loadCompileBlob(url) {
+      if (!url) return;
+      try {
+        const resp = await fetch(url);
+        if (!resp.ok) return;
+        const blob = await resp.blob();
+        if (this.compilePdfUrl) URL.revokeObjectURL(this.compilePdfUrl);
+        this.compilePdfUrl = URL.createObjectURL(blob);
+      } catch { /* 保持 pdf_url 直链 */ }
+    },
     clearCompile() {
+      if (this.compilePdfUrl) {
+        try { URL.revokeObjectURL(this.compilePdfUrl); } catch { /* noop */ }
+      }
       this.compileResult = null;
       this.compileStatus = 'idle';
       this.compileError = null;
       this.compileLogTail = '';
+      this.compilePdfUrl = null;
+      this.compileFirstHint = false;
+    },
+    /* —— P4 项目 zip 两段式 —— */
+    /** 之① inspect：安全解压 + 主文件识别（1h TTL，run 前不占编译队列） */
+    async submitZipInspect() {
+      if (!this.zipFile || this.zipInspectStatus === 'loading') return null;
+      this.zipInspectStatus = 'loading';
+      this.zipInspectError = null;
+      this.zipInspect = null;
+      this.clearCompile(); // 新 zip 使旧 PDF 失效
+      const fd = new FormData();
+      fd.append('file', this.zipFile);
+      try {
+        const payload = await inspectZip(fd);
+        this.zipInspect = payload.meta;
+        this.zipInspectStatus = 'ready';
+        return payload;
+      } catch (err) {
+        this.zipInspectStatus = 'error';
+        this.zipInspectError = reviewErrorMessage(err); // ZIP_UNSAFE/BOMB/INVALID 走后端原话
+        return null;
+      }
+    },
+    /** 之② run：原子消费 inspect → 编译（信封与 P3b 同构 → 复用 compile* 字段） */
+    async submitZipCompile() {
+      const jid = this.zipInspect?.job_id;
+      if (!jid || this.compileStatus === 'loading') return null;
+      this.compileStatus = 'loading';
+      this.compileError = null;
+      this.compileLogTail = '';
+      if (!this.compileResult) this.compileFirstHint = true;
+      try {
+        const payload = await runZipCompile({ job_id: jid });
+        this.compileResult = payload;
+        this.compileStatus = 'ready';
+        this._loadCompileBlob(payload.pdf_url);
+        return payload;
+      } catch (err) {
+        this.compileStatus = 'error';
+        this.compileError = reviewErrorMessage(err);
+        // 失败信封带 compile_id + log_url（补充 3）→ log 尾仍走 err.detail
+        this.compileLogTail = err.detail || '';
+        // 失败也挂结果壳（仅 id/url）：下载完整 log 用 /zip/{cid}/log（成功信封同构）
+        if (err.compileId) {
+          this.compileResult = {
+            ok: false, compile_id: err.compileId, log_url: err.logUrl || null,
+          };
+        }
+        return null;
+      }
+    },
+    clearZip() {
+      this.zipFile = null;
+      this.zipInspect = null;
+      this.zipInspectStatus = 'idle';
+      this.zipInspectError = null;
+      this.clearCompile();
     },
   },
 });