移动端拍照上传、奥数区、学段约束解题与 AI 模型配置。

- 手机/平板响应式布局，支持拍照与相册上传

- 学生详情新增奥数区，按初/高中学段生成解法并禁止超纲

- 系统设置可配置 Ollama 或 OpenAI 兼容 API

- 更新 frontend/dist 与使用说明

.env.example

@@ -16,6 +16,8 @@ CORS_ORIGINS=http://127.0.0.1:23566,http://localhost:23566
 
 OLLAMA_BASE_URL=http://127.0.0.1:11434
 OLLAMA_MODEL=qwen2.5:7b
+OPENAI_BASE_URL=https://api.openai.com/v1
+OPENAI_MODEL=gpt-4o-mini
 FLUCTUATION_THRESHOLD=0.08
 
 ADMIN_DEFAULT_USERNAME=admin

backend/app/core/config.py

@@ -11,6 +11,8 @@ class Settings(BaseSettings):
     MAX_UPLOAD_SIZE: int = 10 * 1024 * 1024
     OLLAMA_BASE_URL: str = "http://127.0.0.1:11434"
     OLLAMA_MODEL: str = "qwen2.5:7b"
+    OPENAI_BASE_URL: str = "https://api.openai.com/v1"
+    OPENAI_MODEL: str = "gpt-4o-mini"
     FLUCTUATION_THRESHOLD: float = 0.08
     CORS_ORIGINS: str = "http://localhost:5173,http://localhost:23566,http://localhost"
     WEB_PORT: int = 23566

backend/app/models/user.py

@@ -22,6 +22,16 @@ class WrongQuestionStatus(str, enum.Enum):
     failed = "failed"
 
 
+class WrongQuestionCategory(str, enum.Enum):
+    regular = "regular"
+    olympiad = "olympiad"
+
+
+class AIProvider(str, enum.Enum):
+    ollama = "ollama"
+    openai = "openai"
+
+
 class SchoolLevel(str, enum.Enum):
     junior_high = "junior_high"
     senior_high = "senior_high"
@@ -123,6 +133,9 @@ class WrongQuestion(Base):
     status: Mapped[WrongQuestionStatus] = mapped_column(
         Enum(WrongQuestionStatus), default=WrongQuestionStatus.pending
     )
+    category: Mapped[WrongQuestionCategory] = mapped_column(
+        Enum(WrongQuestionCategory), default=WrongQuestionCategory.regular
+    )
     created_at: Mapped[datetime] = mapped_column(
         DateTime(timezone=True), default=lambda: datetime.now(timezone.utc)
     )
@@ -136,6 +149,12 @@ class SystemSettings(Base):
 
     id: Mapped[int] = mapped_column(Integer, primary_key=True, default=1)
     registration_enabled: Mapped[bool] = mapped_column(default=True)
+    ai_provider: Mapped[str] = mapped_column(String(16), default="ollama")
+    ollama_base_url: Mapped[str | None] = mapped_column(String(256), nullable=True)
+    ollama_model: Mapped[str | None] = mapped_column(String(128), nullable=True)
+    openai_base_url: Mapped[str | None] = mapped_column(String(256), nullable=True)
+    openai_model: Mapped[str | None] = mapped_column(String(128), nullable=True)
+    openai_api_key: Mapped[str | None] = mapped_column(String(512), nullable=True)
     updated_at: Mapped[datetime] = mapped_column(
         DateTime(timezone=True), default=lambda: datetime.now(timezone.utc)
     )

backend/app/routers/admin.py

@@ -13,6 +13,7 @@ from app.schemas import (
     AdminUserCreate,
     AdminUserOut,
     AdminUserPasswordUpdate,
+    AIProviderEnum,
     PublicSettingsOut,
     SystemSettingsOut,
     SystemSettingsUpdate,
@@ -21,6 +22,19 @@ from app.schemas import (
 router = APIRouter(prefix="/admin", tags=["admin"])
 
 
+def settings_to_out(row: SystemSettings) -> SystemSettingsOut:
+    return SystemSettingsOut(
+        registration_enabled=row.registration_enabled,
+        ai_provider=AIProviderEnum(row.ai_provider or "ollama"),
+        ollama_base_url=row.ollama_base_url,
+        ollama_model=row.ollama_model,
+        openai_base_url=row.openai_base_url,
+        openai_model=row.openai_model,
+        openai_api_key_set=bool(row.openai_api_key),
+        updated_at=row.updated_at,
+    )
+
+
 def get_or_create_settings(db: Session) -> SystemSettings:
     row = db.get(SystemSettings, 1)
     if row is None:
@@ -36,7 +50,7 @@ def get_settings(
     db: Session = Depends(get_db),
     _: User = Depends(get_superuser),
 ):
-    return get_or_create_settings(db)
+    return settings_to_out(get_or_create_settings(db))
 
 
 @router.patch("/settings", response_model=SystemSettingsOut)
@@ -48,10 +62,22 @@ def update_settings(
     row = get_or_create_settings(db)
     if data.registration_enabled is not None:
         row.registration_enabled = data.registration_enabled
+    if data.ai_provider is not None:
+        row.ai_provider = data.ai_provider.value
+    if data.ollama_base_url is not None:
+        row.ollama_base_url = data.ollama_base_url or None
+    if data.ollama_model is not None:
+        row.ollama_model = data.ollama_model or None
+    if data.openai_base_url is not None:
+        row.openai_base_url = data.openai_base_url or None
+    if data.openai_model is not None:
+        row.openai_model = data.openai_model or None
+    if data.openai_api_key is not None and data.openai_api_key.strip():
+        row.openai_api_key = data.openai_api_key.strip()
     row.updated_at = datetime.now(timezone.utc)
     db.commit()
     db.refresh(row)
-    return row
+    return settings_to_out(row)
 
 
 @router.patch("/profile", response_model=AdminUserOut)

backend/app/routers/wrong_questions.py

@@ -8,10 +8,10 @@ from sqlalchemy.orm import Session, joinedload
 from app.core.config import settings
 from app.core.database import SessionLocal, get_db
 from app.core.deps import get_current_user
-from app.models.user import Subject, User, WrongQuestion, WrongQuestionStatus
-from app.schemas import WrongQuestionOut, WrongQuestionUpdate
+from app.models.user import Subject, User, WrongQuestion, WrongQuestionCategory, WrongQuestionStatus
+from app.schemas import WrongQuestionCategoryEnum, WrongQuestionOut, WrongQuestionUpdate
+from app.services import llm as llm_service
 from app.services import ocr as ocr_service
-from app.services import ollama as ollama_service
 from app.services.student_access import get_student_for_user
 
 router = APIRouter(tags=["wrong_questions"])
@@ -23,6 +23,7 @@ def _wq_to_out(wq: WrongQuestion) -> WrongQuestionOut:
         student_id=wq.student_id,
         subject_id=wq.subject_id,
         subject_name=wq.subject.name if wq.subject else None,
+        category=wq.category,
         image_path=wq.image_path,
         ocr_raw_text=wq.ocr_raw_text,
         question_text=wq.question_text,
@@ -60,16 +61,25 @@ def _process_wrong_question(question_id: uuid.UUID):
 
         subject_name = wq.subject.name if wq.subject else "综合"
         school_level = wq.student.school_level if wq.student else None
+        olympiad = wq.category == WrongQuestionCategory.olympiad
+        ai_cfg = llm_service.load_ai_config(db)
+
         import asyncio
 
         loop = asyncio.new_event_loop()
         asyncio.set_event_loop(loop)
         try:
             question_text = loop.run_until_complete(
-                ollama_service.format_question(subject_name, ocr_text, school_level)
+                llm_service.format_question(ai_cfg, subject_name, ocr_text, school_level)
             )
             solution_text = loop.run_until_complete(
-                ollama_service.generate_solution(subject_name, question_text, school_level)
+                llm_service.generate_solution(
+                    ai_cfg,
+                    subject_name,
+                    question_text,
+                    school_level,
+                    olympiad=olympiad,
+                )
             )
             wq.question_text = question_text
             wq.solution_text = solution_text
@@ -88,6 +98,7 @@ def _process_wrong_question(question_id: uuid.UUID):
 def list_wrong_questions(
     student_id: uuid.UUID,
     subject_id: int | None = Query(None),
+    category: WrongQuestionCategoryEnum | None = Query(None),
     q: str | None = Query(None),
     db: Session = Depends(get_db),
     current_user: User = Depends(get_current_user),
@@ -100,6 +111,8 @@ def list_wrong_questions(
     )
     if subject_id is not None:
         query = query.filter(WrongQuestion.subject_id == subject_id)
+    if category is not None:
+        query = query.filter(WrongQuestion.category == category.value)
     if q:
         pattern = f"%{q}%"
         query = query.filter(
@@ -121,6 +134,7 @@ async def upload_wrong_question(
     background_tasks: BackgroundTasks,
     subject_id: int = Form(...),
     file: UploadFile = File(...),
+    category: WrongQuestionCategoryEnum = Form(WrongQuestionCategoryEnum.regular),
     db: Session = Depends(get_db),
     current_user: User = Depends(get_current_user),
 ):
@@ -137,6 +151,7 @@ async def upload_wrong_question(
         student_id=student_id,
         subject_id=subject_id,
         image_path="",
+        category=WrongQuestionCategory(category.value),
         status=WrongQuestionStatus.pending,
     )
     db.add(wq)
@@ -270,21 +285,27 @@ async def regenerate_solution(
 
     subject_name = wq.subject.name if wq.subject else "综合"
     school_level = wq.student.school_level if wq.student else None
+    olympiad = wq.category == WrongQuestionCategory.olympiad
     question_text = wq.question_text or wq.ocr_raw_text or ""
+    ai_cfg = llm_service.load_ai_config(db)
 
     try:
         if not wq.question_text and wq.ocr_raw_text:
-            wq.question_text = await ollama_service.format_question(
-                subject_name, wq.ocr_raw_text, school_level
+            wq.question_text = await llm_service.format_question(
+                ai_cfg, subject_name, wq.ocr_raw_text, school_level
             )
             question_text = wq.question_text
-        wq.solution_text = await ollama_service.generate_solution(
-            subject_name, question_text, school_level
+        wq.solution_text = await llm_service.generate_solution(
+            ai_cfg,
+            subject_name,
+            question_text,
+            school_level,
+            olympiad=olympiad,
         )
         wq.status = WrongQuestionStatus.solved
     except Exception as exc:
         raise HTTPException(
-            status_code=status.HTTP_502_BAD_GATEWAY, detail=f"Ollama 调用失败: {exc}"
+            status_code=status.HTTP_502_BAD_GATEWAY, detail=f"AI 调用失败: {exc}"
         ) from exc
 
     db.commit()

backend/app/schemas/__init__.py

@@ -18,6 +18,16 @@ class WrongQuestionStatusEnum(str, Enum):
     failed = "failed"
 
 
+class WrongQuestionCategoryEnum(str, Enum):
+    regular = "regular"
+    olympiad = "olympiad"
+
+
+class AIProviderEnum(str, Enum):
+    ollama = "ollama"
+    openai = "openai"
+
+
 class SchoolLevelEnum(str, Enum):
     junior_high = "junior_high"
     senior_high = "senior_high"
@@ -58,6 +68,12 @@ class PublicSettingsOut(BaseModel):
 
 class SystemSettingsOut(BaseModel):
     registration_enabled: bool
+    ai_provider: AIProviderEnum
+    ollama_base_url: str | None = None
+    ollama_model: str | None = None
+    openai_base_url: str | None = None
+    openai_model: str | None = None
+    openai_api_key_set: bool = False
     updated_at: datetime
 
     model_config = {"from_attributes": True}
@@ -65,6 +81,12 @@ class SystemSettingsOut(BaseModel):
 
 class SystemSettingsUpdate(BaseModel):
     registration_enabled: bool | None = None
+    ai_provider: AIProviderEnum | None = None
+    ollama_base_url: str | None = None
+    ollama_model: str | None = None
+    openai_base_url: str | None = None
+    openai_model: str | None = None
+    openai_api_key: str | None = None
 
 
 class AdminProfileUpdate(BaseModel):
@@ -207,6 +229,7 @@ class WrongQuestionOut(BaseModel):
     student_id: UUID
     subject_id: int
     subject_name: str | None = None
+    category: WrongQuestionCategoryEnum
     image_path: str
     ocr_raw_text: str | None
     question_text: str | None

backend/app/services/llm.py

@@ -0,0 +1,169 @@
+import enum
+
+import httpx
+from sqlalchemy.orm import Session
+
+from app.core.config import settings as app_settings
+from app.models.user import SchoolLevel, SystemSettings
+from app.services.school_level import school_level_label
+
+CURRICULUM_JUNIOR = """初中课程标准：代数、几何（全等/相似/勾股）、一次函数与简单二次函数、基础概率统计。
+严禁使用：高中导数、向量、解析几何、排列组合进阶、复数、微积分、大学线性代数等。"""
+
+CURRICULUM_SENIOR = """高中课程标准：课内函数、三角、向量、解析几何、概率统计、导数（课内范围）等。
+严禁使用：大学数学分析、抽象代数、高等几何、超出课内的竞赛高阶技巧。"""
+
+CURRICULUM_JUNIOR_OLYMPIAD = """初中奥数培优范围：整数/整除、因数分解、简单数论、代数恒等变形、几何辅助线与全等相似、简单组合计数。
+严禁使用：高中及以上方法（导数、向量、解析几何、微积分、复数运算等）。"""
+
+CURRICULUM_SENIOR_OLYMPIAD = """高中奥数/竞赛入门范围：课内知识+常规竞赛技巧（不等式、构造、归纳、简单数论等）。
+严禁使用：大学数学、超出高中奥数培优体系的 IMO 高阶理论。"""
+
+
+def _curriculum_block(level: SchoolLevel | str | None, olympiad: bool) -> str:
+    label = school_level_label(level)
+    is_senior = level == SchoolLevel.senior_high or level == "senior_high"
+    if olympiad:
+        return CURRICULUM_SENIOR_OLYMPIAD if is_senior else CURRICULUM_JUNIOR_OLYMPIAD
+    return CURRICULUM_SENIOR if is_senior else CURRICULUM_JUNIOR
+
+
+QUESTION_PROMPT = """你是一位{stage}老师。以下是从试卷 OCR 识别出的文字，可能含有噪声。
+科目：{subject}
+请整理出清晰的题目内容（保留题号、选项、公式），只输出题目正文，不要解释。
+
+OCR 原文：
+{ocr_text}
+"""
+
+SOLUTION_PROMPT = """你是一位耐心的{stage}{subject}老师。请为以下题目给出详细解法。
+
+【学段要求 — 严禁超纲】
+{curriculum}
+
+题目：
+{question_text}
+
+请按以下结构输出：
+1. 考点分析（{stage}范围内）
+2. 解题步骤（逐步推导，每步说明依据）
+3. 易错点提醒
+4. 若必须使用超纲方法才能解，请改用{stage}可理解的方法重新解答，不得输出超纲解法。
+"""
+
+OLYMPIAD_SOLUTION_PROMPT = """你是一位{stage}奥数教练。请为以下奥数题给出详细解题思路与完整解答。
+
+【奥数学段要求 — 严禁超纲】
+{curriculum}
+
+题目：
+{question_text}
+
+请按以下结构输出：
+1. 题型与思路切入点（{stage}奥数常见技巧）
+2. 详细解答步骤
+3. 关键技巧总结（仅限{stage}奥数范围）
+4. 严禁使用超出上述范围的方法；若题目过难，给出{stage}可接受的培优思路。
+"""
+
+
+class AIConfig:
+    def __init__(
+        self,
+        provider: str,
+        ollama_base_url: str,
+        ollama_model: str,
+        openai_base_url: str,
+        openai_model: str,
+        openai_api_key: str | None,
+    ):
+        self.provider = provider
+        self.ollama_base_url = ollama_base_url
+        self.ollama_model = ollama_model
+        self.openai_base_url = openai_base_url
+        self.openai_model = openai_model
+        self.openai_api_key = openai_api_key
+
+
+def load_ai_config(db: Session) -> AIConfig:
+    row = db.get(SystemSettings, 1)
+    if row is None:
+        return AIConfig(
+            provider="ollama",
+            ollama_base_url=app_settings.OLLAMA_BASE_URL,
+            ollama_model=app_settings.OLLAMA_MODEL,
+            openai_base_url=app_settings.OPENAI_BASE_URL,
+            openai_model=app_settings.OPENAI_MODEL,
+            openai_api_key=None,
+        )
+    return AIConfig(
+        provider=row.ai_provider or "ollama",
+        ollama_base_url=row.ollama_base_url or app_settings.OLLAMA_BASE_URL,
+        ollama_model=row.ollama_model or app_settings.OLLAMA_MODEL,
+        openai_base_url=row.openai_base_url or app_settings.OPENAI_BASE_URL,
+        openai_model=row.openai_model or app_settings.OPENAI_MODEL,
+        openai_api_key=row.openai_api_key,
+    )
+
+
+async def _ollama_generate(prompt: str, cfg: AIConfig) -> str:
+    url = f"{cfg.ollama_base_url.rstrip('/')}/api/generate"
+    payload = {"model": cfg.ollama_model, "prompt": prompt, "stream": False}
+    async with httpx.AsyncClient(timeout=180.0) as client:
+        response = await client.post(url, json=payload)
+        response.raise_for_status()
+        return (response.json().get("response") or "").strip()
+
+
+async def _openai_generate(prompt: str, cfg: AIConfig) -> str:
+    if not cfg.openai_api_key:
+        raise ValueError("未配置 OpenAI API Key")
+    url = f"{cfg.openai_base_url.rstrip('/')}/chat/completions"
+    headers = {"Authorization": f"Bearer {cfg.openai_api_key}"}
+    payload = {
+        "model": cfg.openai_model,
+        "messages": [{"role": "user", "content": prompt}],
+        "temperature": 0.3,
+    }
+    async with httpx.AsyncClient(timeout=180.0) as client:
+        response = await client.post(url, json=payload, headers=headers)
+        response.raise_for_status()
+        data = response.json()
+        return (data["choices"][0]["message"]["content"] or "").strip()
+
+
+async def generate_text(prompt: str, cfg: AIConfig) -> str:
+    if cfg.provider == "openai":
+        return await _openai_generate(prompt, cfg)
+    return await _ollama_generate(prompt, cfg)
+
+
+async def format_question(
+    cfg: AIConfig,
+    subject: str,
+    ocr_text: str,
+    school_level=None,
+) -> str:
+    stage = school_level_label(school_level)
+    prompt = QUESTION_PROMPT.format(stage=stage, subject=subject, ocr_text=ocr_text)
+    return await generate_text(prompt, cfg)
+
+
+async def generate_solution(
+    cfg: AIConfig,
+    subject: str,
+    question_text: str,
+    school_level=None,
+    *,
+    olympiad: bool = False,
+) -> str:
+    stage = school_level_label(school_level)
+    curriculum = _curriculum_block(school_level, olympiad)
+    template = OLYMPIAD_SOLUTION_PROMPT if olympiad else SOLUTION_PROMPT
+    prompt = template.format(
+        stage=stage,
+        subject=subject,
+        curriculum=curriculum,
+        question_text=question_text,
+    )
+    return await generate_text(prompt, cfg)

backend/app/services/migrate.py

@@ -7,7 +7,8 @@ from app.core.database import engine
 def run_migrations() -> None:
     """Apply lightweight schema updates for existing databases."""
     inspector = inspect(engine)
-    if "students" not in inspector.get_table_names():
+    tables = set(inspector.get_table_names())
+    if "students" not in tables:
         return
 
     columns = {col["name"] for col in inspector.get_columns("students")}
@@ -20,7 +21,7 @@ def run_migrations() -> None:
                 )
             )
 
-    if "users" in inspector.get_table_names():
+    if "users" in tables:
         user_columns = {col["name"] for col in inspector.get_columns("users")}
         if "is_superuser" not in user_columns:
             with engine.begin() as conn:
@@ -33,3 +34,34 @@ def run_migrations() -> None:
                         f"WHERE username = '{settings.ADMIN_DEFAULT_USERNAME}'"
                     )
                 )
+
+    if "wrong_questions" in tables:
+        wq_columns = {col["name"] for col in inspector.get_columns("wrong_questions")}
+        if "category" not in wq_columns:
+            with engine.begin() as conn:
+                conn.execute(
+                    text(
+                        "ALTER TABLE wrong_questions ADD COLUMN category VARCHAR(32) "
+                        "NOT NULL DEFAULT 'regular'"
+                    )
+                )
+
+    if "system_settings" in tables:
+        ss_columns = {col["name"] for col in inspector.get_columns("system_settings")}
+        alters: list[str] = []
+        if "ai_provider" not in ss_columns:
+            alters.append("ADD COLUMN ai_provider VARCHAR(16) NOT NULL DEFAULT 'ollama'")
+        if "ollama_base_url" not in ss_columns:
+            alters.append("ADD COLUMN ollama_base_url VARCHAR(256)")
+        if "ollama_model" not in ss_columns:
+            alters.append("ADD COLUMN ollama_model VARCHAR(128)")
+        if "openai_base_url" not in ss_columns:
+            alters.append("ADD COLUMN openai_base_url VARCHAR(256)")
+        if "openai_model" not in ss_columns:
+            alters.append("ADD COLUMN openai_model VARCHAR(128)")
+        if "openai_api_key" not in ss_columns:
+            alters.append("ADD COLUMN openai_api_key VARCHAR(512)")
+        if alters:
+            with engine.begin() as conn:
+                for clause in alters:
+                    conn.execute(text(f"ALTER TABLE system_settings {clause}"))

backend/app/services/ollama.py

@@ -1,47 +1,5 @@
-import httpx
+"""Backward-compatible wrapper; prefer app.services.llm."""
 
-from app.core.config import settings
-from app.services.school_level import school_level_label
+from app.services.llm import format_question, generate_solution, load_ai_config
 
-QUESTION_PROMPT = """你是一位{stage}老师。以下是从试卷 OCR 识别出的文字，可能含有噪声。
-科目：{subject}
-请整理出清晰的题目内容（保留题号、选项、公式），只输出题目正文，不要解释。
-
-OCR 原文：
-{ocr_text}
-"""
-
-SOLUTION_PROMPT = """你是一位耐心的{stage}{subject}老师。请为以下题目给出详细解法。
-要求：步骤清晰，语言适合{stage}学生理解，指出考点和易错点。
-
-题目：
-{question_text}
-"""
-
-
-async def ollama_generate(prompt: str) -> str:
-    url = f"{settings.OLLAMA_BASE_URL.rstrip('/')}/api/generate"
-    payload = {
-        "model": settings.OLLAMA_MODEL,
-        "prompt": prompt,
-        "stream": False,
-    }
-    async with httpx.AsyncClient(timeout=120.0) as client:
-        response = await client.post(url, json=payload)
-        response.raise_for_status()
-        data = response.json()
-        return (data.get("response") or "").strip()
-
-
-async def format_question(subject: str, ocr_text: str, school_level=None) -> str:
-    stage = school_level_label(school_level)
-    prompt = QUESTION_PROMPT.format(stage=stage, subject=subject, ocr_text=ocr_text)
-    return await ollama_generate(prompt)
-
-
-async def generate_solution(subject: str, question_text: str, school_level=None) -> str:
-    stage = school_level_label(school_level)
-    prompt = SOLUTION_PROMPT.format(
-        stage=stage, subject=subject, question_text=question_text
-    )
-    return await ollama_generate(prompt)
+__all__ = ["format_question", "generate_solution", "load_ai_config"]

backend/app/services/seed.py

@@ -26,8 +26,30 @@ def seed_subjects(db: Session) -> None:
 
 
 def seed_admin_and_settings(db: Session) -> None:
-    if db.get(SystemSettings, 1) is None:
-        db.add(SystemSettings(id=1, registration_enabled=True))
+    row = db.get(SystemSettings, 1)
+    if row is None:
+        db.add(
+            SystemSettings(
+                id=1,
+                registration_enabled=True,
+                ai_provider="ollama",
+                ollama_base_url=settings.OLLAMA_BASE_URL,
+                ollama_model=settings.OLLAMA_MODEL,
+                openai_base_url=settings.OPENAI_BASE_URL,
+                openai_model=settings.OPENAI_MODEL,
+            )
+        )
+    else:
+        if not row.ollama_base_url:
+            row.ollama_base_url = settings.OLLAMA_BASE_URL
+        if not row.ollama_model:
+            row.ollama_model = settings.OLLAMA_MODEL
+        if not row.openai_base_url:
+            row.openai_base_url = settings.OPENAI_BASE_URL
+        if not row.openai_model:
+            row.openai_model = settings.OPENAI_MODEL
+        if not row.ai_provider:
+            row.ai_provider = "ollama"
 
     admin = db.query(User).filter(User.username == settings.ADMIN_DEFAULT_USERNAME).first()
     if admin is None:

docs/USAGE.md

@@ -99,18 +99,33 @@
 
 ## 4. 错题库
 
-### 4.1 上传错题
+### 4.1 上传错题（手机 / 平板）
 
-进入 **错题库** 标签：
+进入 **错题库** 或 **奥数区** 标签：
 
 1. 选择 **科目**  
-2. 点击 **上传错题图片**（支持 jpg/png/webp，最大 10MB）  
+2. 点击 **拍照上传**（调用摄像头）或 **相册选图**  
 3. 上传后后台自动：**OCR 识别 → AI 整理题目 → 生成解法**  
-4. 处理状态：处理中 → 已识别 → 已生成解法  
 
-> AI 解法依赖服务器上的 **Ollama**。未配置时仍可 OCR，解法需手动填写。
+> 手机和平板已适配触控操作；拍照上传需浏览器授权摄像头。
 
-### 4.2 查看与编辑
+### 4.2 奥数区
+
+学生详情页 **奥数区** 标签专门存放奥数题：
+
+- 按学生**学段**（初中 / 高中）生成奥数解题思路  
+- **严禁超纲**：初中不用高中/大学方法，高中不用大学高阶理论  
+- 上传方式与错题库相同，支持拍照  
+
+### 4.3 解题 AI 与学段约束
+
+- **错题库**：按初中/高中**课内**标准解题，禁止超纲  
+- **奥数区**：按对应学段**奥数培优**范围解题  
+- 超级管理员可在 **系统设置 → AI 模型** 中选择：
+  - **本地 Ollama**（地址 + 模型名）
+  - **OpenAI 兼容 API**（Base URL + 模型 + API Key）
+
+### 4.4 查看与编辑
 
 点击错题卡片打开详情：
 
@@ -122,7 +137,7 @@
 
 > 解法标注「AI 生成，请核对」，使用前请人工确认。
 
-### 4.3 筛选与搜索
+### 4.5 筛选与搜索
 
 - 按 **科目** 筛选  
 - **搜索** 题目/解法关键词  

frontend/dist/assets/index-8NG7km60.css

@@ -0,0 +1 @@
+*{box-sizing:border-box}body{-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;background:#f5f5f5;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}#root{min-height:100dvh}a{color:inherit}.page-container{max-width:1100px;padding:16px 16px 32px;padding-bottom:max(32px, env(safe-area-inset-bottom));margin:0 auto}.page-header{width:100%;margin-bottom:16px}.student-tabs .ant-tabs-nav{margin-bottom:12px}.wq-grid{grid-template-columns:repeat(auto-fill,minmax(min(100%,260px),1fr));gap:16px;display:grid}.wq-card{cursor:pointer;background:#fff;border:1px solid #f0f0f0;border-radius:8px;transition:box-shadow .2s;overflow:hidden}.wq-card:active{box-shadow:0 2px 8px #00000014}.wq-card-img{object-fit:cover;background:#fafafa;width:100%;height:140px}.wq-card-body{padding:12px}.upload-actions .ant-btn{min-height:44px}@media (width<=768px){.page-container{padding:12px 12px 24px}.ant-tabs-tab{font-size:14px;padding:8px 10px!important}.ant-modal{max-width:calc(100vw - 16px)!important;margin:8px auto!important}.ant-table{font-size:12px}.upload-actions{width:100%}.upload-actions .ant-btn{flex:1;min-width:120px}}@media (width<=576px){.wq-card-img{height:120px}}

frontend/dist/assets/index-DHafbxey.css

@@ -1 +0,0 @@
-*{box-sizing:border-box}body{-webkit-font-smoothing:antialiased;background:#f5f5f5;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}#root{min-height:100vh}a{color:inherit}@media (width<=576px){.ant-table{font-size:12px}}

frontend/dist/index.html

@@ -3,12 +3,14 @@
   <head>
     <meta charset="UTF-8" />
     <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover" />
+    <meta name="mobile-web-app-capable" content="yes" />
+    <meta name="apple-mobile-web-app-capable" content="yes" />
     <meta name="author" content="马建军" />
     <meta name="copyright" content="Copyright (c) 马建军. All rights reserved." />
     <title>中学成绩档案</title>
-    <script type="module" crossorigin src="/assets/index-Ds_4iUm1.js"></script>
-    <link rel="stylesheet" crossorigin href="/assets/index-DHafbxey.css">
+    <script type="module" crossorigin src="/assets/index-BbvdgaGu.js"></script>
+    <link rel="stylesheet" crossorigin href="/assets/index-8NG7km60.css">
   </head>
   <body>
     <div id="root"></div>

frontend/index.html

@@ -3,7 +3,9 @@
   <head>
     <meta charset="UTF-8" />
     <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover" />
+    <meta name="mobile-web-app-capable" content="yes" />
+    <meta name="apple-mobile-web-app-capable" content="yes" />
     <meta name="author" content="马建军" />
     <meta name="copyright" content="Copyright (c) 马建军. All rights reserved." />
     <title>中学成绩档案</title>

frontend/src/api/client.ts

@@ -1,6 +1,7 @@
 import axios from 'axios'
 import type {
   AdminUser,
+  AIProvider,
   Exam,
   PublicSettings,
   ScoreInput,
@@ -12,6 +13,7 @@ import type {
   TrendResponse,
   User,
   WrongQuestion,
+  WrongQuestionCategory,
 } from '../types'
 import type { ExamType } from '../types'
 
@@ -68,8 +70,15 @@ export const settingsApi = {
 
 export const adminApi = {
   getSettings: () => api.get<SystemSettings>('/admin/settings'),
-  updateSettings: (data: { registration_enabled?: boolean }) =>
-    api.patch<SystemSettings>('/admin/settings', data),
+  updateSettings: (data: {
+    registration_enabled?: boolean
+    ai_provider?: AIProvider
+    ollama_base_url?: string | null
+    ollama_model?: string | null
+    openai_base_url?: string | null
+    openai_model?: string | null
+    openai_api_key?: string
+  }) => api.patch<SystemSettings>('/admin/settings', data),
   updateProfile: (data: {
     username?: string
     current_password?: string
@@ -120,11 +129,12 @@ export const examApi = {
 }
 
 export const wrongQuestionApi = {
-  list: (studentId: string, params?: { subject_id?: number; q?: string }) =>
+  list: (studentId: string, params?: { subject_id?: number; q?: string; category?: WrongQuestionCategory }) =>
     api.get<WrongQuestion[]>(`/students/${studentId}/wrong-questions`, { params }),
-  upload: (studentId: string, subjectId: number, file: File) => {
+  upload: (studentId: string, subjectId: number, file: File, category: WrongQuestionCategory = 'regular') => {
     const form = new FormData()
     form.append('subject_id', String(subjectId))
+    form.append('category', category)
     form.append('file', file)
     return api.post<WrongQuestion>(`/students/${studentId}/wrong-questions`, form)
   },

frontend/src/components/WrongQuestionList.tsx

@@ -0,0 +1,61 @@
+import { Tag, Typography } from 'antd'
+import { wrongQuestionApi } from '../api/client'
+import type { WrongQuestion } from '../types'
+import { STATUS_LABELS } from '../types'
+import WrongQuestionDetail from '../pages/WrongQuestionDetail'
+
+interface Props {
+  items: WrongQuestion[]
+  selectedId: string | null
+  onSelect: (id: string | null) => void
+  onRefresh: () => void
+  emptyText?: string
+}
+
+export default function WrongQuestionList({
+  items,
+  selectedId,
+  onSelect,
+  onRefresh,
+  emptyText = '暂无记录',
+}: Props) {
+  return (
+    <>
+      <div className="wq-grid">
+        {items.map((wq) => (
+          <div key={wq.id} className="wq-card" onClick={() => onSelect(wq.id)}>
+            <img
+              src={wrongQuestionApi.imageUrl(wq.id)}
+              alt="题目"
+              className="wq-card-img"
+              loading="lazy"
+            />
+            <div className="wq-card-body">
+              <Typography.Text strong>{wq.subject_name}</Typography.Text>
+              {wq.category === 'olympiad' && (
+                <Tag color="gold" style={{ marginLeft: 4 }}>
+                  奥数
+                </Tag>
+              )}
+              <Typography.Text type="secondary" style={{ fontSize: 12, marginLeft: 8 }}>
+                {STATUS_LABELS[wq.status]}
+              </Typography.Text>
+              <Typography.Paragraph ellipsis={{ rows: 2 }} style={{ margin: '8px 0 0', fontSize: 13 }}>
+                {wq.question_text || wq.ocr_raw_text || '处理中…'}
+              </Typography.Paragraph>
+            </div>
+          </div>
+        ))}
+      </div>
+      {items.length === 0 && <Typography.Text type="secondary">{emptyText}</Typography.Text>}
+      {selectedId && (
+        <WrongQuestionDetail
+          questionId={selectedId}
+          open={!!selectedId}
+          onClose={() => onSelect(null)}
+          onUpdated={onRefresh}
+        />
+      )}
+    </>
+  )
+}

frontend/src/components/WrongQuestionUpload.tsx

@@ -1,51 +1,95 @@
-import { ReloadOutlined, UploadOutlined } from '@ant-design/icons'
+import { CameraOutlined, PictureOutlined, ReloadOutlined, UploadOutlined } from '@ant-design/icons'
 import { Button, Input, Select, Space, Upload, message } from 'antd'
-import { useState } from 'react'
+import { useRef, useState } from 'react'
 import { wrongQuestionApi } from '../api/client'
-import type { Subject } from '../types'
+import type { Subject, WrongQuestionCategory } from '../types'
 
 interface Props {
   studentId: string
   subjects: Subject[]
+  category: WrongQuestionCategory
   onUploaded: () => void
 }
 
-export default function WrongQuestionUpload({ studentId, subjects, onUploaded }: Props) {
+export default function WrongQuestionUpload({ studentId, subjects, category, onUploaded }: Props) {
   const [subjectId, setSubjectId] = useState<number | undefined>(subjects[0]?.id)
   const [uploading, setUploading] = useState(false)
+  const cameraRef = useRef<HTMLInputElement>(null)
 
-  const handleUpload = async (file: File) => {
+  const doUpload = async (file: File) => {
     if (!subjectId) {
       message.warning('请选择科目')
-      return false
+      return
     }
     setUploading(true)
     try {
-      await wrongQuestionApi.upload(studentId, subjectId, file)
-      message.success('上传成功，正在 OCR 识别并生成解法…')
+      await wrongQuestionApi.upload(studentId, subjectId, file, category)
+      message.success('上传成功，正在识别并生成解法…')
       onUploaded()
     } catch {
       message.error('上传失败')
     } finally {
       setUploading(false)
     }
+  }
+
+  const handleUpload = async (file: File) => {
+    await doUpload(file)
     return false
   }
 
+  const handleCamera = async (e: React.ChangeEvent<HTMLInputElement>) => {
+    const file = e.target.files?.[0]
+    e.target.value = ''
+    if (file) await doUpload(file)
+  }
+
+  const isOlympiad = category === 'olympiad'
+
   return (
-    <Space wrap style={{ marginBottom: 16 }}>
+    <Space direction="vertical" size="middle" style={{ width: '100%', marginBottom: 16 }}>
       <Select
-        style={{ width: 120 }}
+        style={{ width: '100%', maxWidth: 200 }}
         placeholder="选择科目"
         value={subjectId}
         onChange={setSubjectId}
         options={subjects.map((s) => ({ value: s.id, label: s.name }))}
       />
+      <Space wrap className="upload-actions">
         <Upload beforeUpload={handleUpload} showUploadList={false} accept="image/*">
-        <Button icon={<UploadOutlined />} loading={uploading} type="primary">
-          上传错题图片
+          <Button icon={<PictureOutlined />} loading={uploading} type="primary" size="large">
+            相册选图
           </Button>
         </Upload>
+        <Button
+          icon={<CameraOutlined />}
+          loading={uploading}
+          size="large"
+          onClick={() => cameraRef.current?.click()}
+        >
+          拍照上传
+        </Button>
+        <input
+          ref={cameraRef}
+          type="file"
+          accept="image/*"
+          capture="environment"
+          style={{ display: 'none' }}
+          onChange={handleCamera}
+        />
+        {!isOlympiad && (
+          <Upload beforeUpload={handleUpload} showUploadList={false} accept="image/*">
+            <Button icon={<UploadOutlined />} loading={uploading} size="large">
+              上传图片
+            </Button>
+          </Upload>
+        )}
+      </Space>
+      {isOlympiad && (
+        <span style={{ color: '#666', fontSize: 13 }}>
+          奥数区将按学生学段（初中/高中）生成解题思路，严禁超纲方法
+        </span>
+      )}
     </Space>
   )
 }
@@ -68,10 +112,10 @@ export function WrongQuestionFilters({
   subjects,
 }: SearchProps) {
   return (
-    <Space wrap style={{ marginBottom: 16 }}>
+    <Space wrap style={{ marginBottom: 16, width: '100%' }}>
       <Select
         allowClear
-        style={{ width: 140 }}
+        style={{ width: '100%', maxWidth: 140 }}
         placeholder="全部科目"
         value={subjectId}
         onChange={onSubjectChange}
@@ -82,7 +126,7 @@ export function WrongQuestionFilters({
         value={search}
         onChange={(e) => onSearchChange(e.target.value)}
         onSearch={onRefresh}
-        style={{ width: 220 }}
+        style={{ width: '100%', maxWidth: 260 }}
         allowClear
       />
       <Button icon={<ReloadOutlined />} onClick={onRefresh}>

frontend/src/index.css

@@ -8,18 +8,99 @@ body {
     sans-serif;
   background: #f5f5f5;
   -webkit-font-smoothing: antialiased;
+  -webkit-tap-highlight-color: transparent;
 }
 
 #root {
   min-height: 100vh;
+  min-height: 100dvh;
 }
 
 a {
   color: inherit;
 }
 
-@media (max-width: 576px) {
+.page-container {
+  max-width: 1100px;
+  margin: 0 auto;
+  padding: 16px 16px 32px;
+  padding-bottom: max(32px, env(safe-area-inset-bottom));
+}
+
+.page-header {
+  margin-bottom: 16px;
+  width: 100%;
+}
+
+.student-tabs .ant-tabs-nav {
+  margin-bottom: 12px;
+}
+
+.wq-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fill, minmax(min(100%, 260px), 1fr));
+  gap: 16px;
+}
+
+.wq-card {
+  border: 1px solid #f0f0f0;
+  border-radius: 8px;
+  overflow: hidden;
+  cursor: pointer;
+  background: #fff;
+  transition: box-shadow 0.2s;
+}
+
+.wq-card:active {
+  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
+}
+
+.wq-card-img {
+  width: 100%;
+  height: 140px;
+  object-fit: cover;
+  background: #fafafa;
+}
+
+.wq-card-body {
+  padding: 12px;
+}
+
+.upload-actions .ant-btn {
+  min-height: 44px;
+}
+
+@media (max-width: 768px) {
+  .page-container {
+    padding: 12px 12px 24px;
+  }
+
+  .ant-tabs-tab {
+    padding: 8px 10px !important;
+    font-size: 14px;
+  }
+
+  .ant-modal {
+    max-width: calc(100vw - 16px) !important;
+    margin: 8px auto !important;
+  }
+
   .ant-table {
     font-size: 12px;
   }
+
+  .upload-actions {
+    width: 100%;
+  }
+
+  .upload-actions .ant-btn {
+    flex: 1;
+    min-width: 120px;
+  }
+}
+
+@media (max-width: 576px) {
+  .wq-card-img {
+    height: 120px;
+  }
 }

frontend/src/pages/SettingsPage.tsx

@@ -6,6 +6,7 @@ import {
   Input,
   Modal,
   Popconfirm,
+  Radio,
   Space,
   Switch,
   Table,
@@ -17,7 +18,7 @@ import { useEffect, useState } from 'react'
 import { Link, Navigate } from 'react-router-dom'
 import { adminApi } from '../api/client'
 import { useAuth } from '../context/AuthContext'
-import type { AdminUser, SystemSettings } from '../types'
+import type { AdminUser, AIProvider, SystemSettings } from '../types'
 
 export default function SettingsPage() {
   const { user } = useAuth()
@@ -29,6 +30,8 @@ export default function SettingsPage() {
   const [createOpen, setCreateOpen] = useState(false)
   const [resetUser, setResetUser] = useState<AdminUser | null>(null)
   const [resetForm] = Form.useForm()
+  const [aiForm] = Form.useForm()
+  const aiProvider = Form.useWatch('ai_provider', aiForm) as AIProvider | undefined
 
   if (!user?.is_superuser) return <Navigate to="/" replace />
 
@@ -42,6 +45,14 @@ export default function SettingsPage() {
       setSettings(settingsRes.data)
       setUsers(usersRes.data)
       profileForm.setFieldsValue({ username: user.username })
+      aiForm.setFieldsValue({
+        ai_provider: settingsRes.data.ai_provider,
+        ollama_base_url: settingsRes.data.ollama_base_url || '',
+        ollama_model: settingsRes.data.ollama_model || '',
+        openai_base_url: settingsRes.data.openai_base_url || '',
+        openai_model: settingsRes.data.openai_model || '',
+        openai_api_key: '',
+      })
     } finally {
       setLoading(false)
     }
@@ -97,8 +108,32 @@ export default function SettingsPage() {
     load()
   }
 
+  const saveAiSettings = async (values: {
+    ai_provider: AIProvider
+    ollama_base_url?: string
+    ollama_model?: string
+    openai_base_url?: string
+    openai_model?: string
+    openai_api_key?: string
+  }) => {
+    const payload: Parameters<typeof adminApi.updateSettings>[0] = {
+      ai_provider: values.ai_provider,
+      ollama_base_url: values.ollama_base_url || null,
+      ollama_model: values.ollama_model || null,
+      openai_base_url: values.openai_base_url || null,
+      openai_model: values.openai_model || null,
+    }
+    if (values.openai_api_key?.trim()) {
+      payload.openai_api_key = values.openai_api_key.trim()
+    }
+    const { data } = await adminApi.updateSettings(payload)
+    setSettings(data)
+    aiForm.setFieldValue('openai_api_key', '')
+    message.success('AI 模型配置已保存')
+  }
+
   return (
-    <div style={{ maxWidth: 960, margin: '0 auto', padding: '16px 16px 32px' }}>
+    <div className="page-container">
       <Space direction="vertical" size="large" style={{ width: '100%' }}>
         <div>
           <Typography.Title level={3} style={{ margin: 0 }}>
@@ -156,6 +191,59 @@ export default function SettingsPage() {
                 </Space>
               ),
             },
+            {
+              key: 'ai',
+              label: 'AI 模型',
+              children: (
+                <Card title="解题 AI 配置" loading={loading}>
+                  <Form form={aiForm} layout="vertical" onFinish={saveAiSettings}>
+                    <Form.Item name="ai_provider" label="AI 提供商" rules={[{ required: true }]}>
+                      <Radio.Group>
+                        <Radio.Button value="ollama">本地 Ollama</Radio.Button>
+                        <Radio.Button value="openai">OpenAI 兼容 API</Radio.Button>
+                      </Radio.Group>
+                    </Form.Item>
+                    {(aiProvider || settings?.ai_provider) === 'ollama' && (
+                      <>
+                        <Form.Item name="ollama_base_url" label="Ollama 地址">
+                          <Input placeholder="http://127.0.0.1:11434" />
+                        </Form.Item>
+                        <Form.Item name="ollama_model" label="Ollama 模型">
+                          <Input placeholder="qwen2.5:7b" />
+                        </Form.Item>
+                      </>
+                    )}
+                    {(aiProvider || settings?.ai_provider) === 'openai' && (
+                      <>
+                        <Form.Item name="openai_base_url" label="API Base URL">
+                          <Input placeholder="https://api.openai.com/v1" />
+                        </Form.Item>
+                        <Form.Item name="openai_model" label="模型名称">
+                          <Input placeholder="gpt-4o-mini" />
+                        </Form.Item>
+                        <Form.Item
+                          name="openai_api_key"
+                          label="API Key"
+                          extra={
+                            settings?.openai_api_key_set
+                              ? '已配置 Key，留空则不修改'
+                              : '请输入 API Key'
+                          }
+                        >
+                          <Input.Password placeholder="sk-..." />
+                        </Form.Item>
+                      </>
+                    )}
+                    <Typography.Paragraph type="secondary">
+                      错题/奥数解法将按学生学段（初中/高中）生成，并严格禁止超纲解题。
+                    </Typography.Paragraph>
+                    <Button type="primary" htmlType="submit">
+                      保存 AI 配置
+                    </Button>
+                  </Form>
+                </Card>
+              ),
+            },
             {
               key: 'users',
               label: '用户管理',

frontend/src/pages/StudentDetailPage.tsx

@@ -6,11 +6,10 @@ import { examApi, studentApi, subjectApi, wrongQuestionApi } from '../api/client
 import ScoreForm from '../components/ScoreForm'
 import ScoreOverview from '../components/ScoreOverview'
 import TrendChart from '../components/TrendChart'
+import WrongQuestionList from '../components/WrongQuestionList'
 import WrongQuestionUpload, { WrongQuestionFilters } from '../components/WrongQuestionUpload'
 import { formatStudentMeta, SCHOOL_LEVEL_LABELS } from '../constants/school'
 import type { Exam, Student, Subject, TrendResponse, WrongQuestion } from '../types'
-import { STATUS_LABELS } from '../types'
-import WrongQuestionDetail from './WrongQuestionDetail'
 
 export default function StudentDetailPage() {
   const { id } = useParams<{ id: string }>()
@@ -20,9 +19,13 @@ export default function StudentDetailPage() {
   const [trend, setTrend] = useState<TrendResponse | null>(null)
   const [selectedSubject, setSelectedSubject] = useState<number>()
   const [wrongQuestions, setWrongQuestions] = useState<WrongQuestion[]>([])
+  const [olympiadQuestions, setOlympiadQuestions] = useState<WrongQuestion[]>([])
   const [wqSubjectFilter, setWqSubjectFilter] = useState<number>()
+  const [olympiadSubjectFilter, setOlympiadSubjectFilter] = useState<number>()
   const [wqSearch, setWqSearch] = useState('')
+  const [olympiadSearch, setOlympiadSearch] = useState('')
   const [selectedWq, setSelectedWq] = useState<string | null>(null)
+  const [selectedOlympiad, setSelectedOlympiad] = useState<string | null>(null)
   const [loading, setLoading] = useState(true)
 
   const subjectNames = Object.fromEntries(subjects.map((s) => [s.id, s.name]))
@@ -44,10 +47,21 @@ export default function StudentDetailPage() {
     const { data } = await wrongQuestionApi.list(id, {
       subject_id: wqSubjectFilter,
       q: wqSearch || undefined,
+      category: 'regular',
     })
     setWrongQuestions(data)
   }, [id, wqSubjectFilter, wqSearch])
 
+  const loadOlympiadQuestions = useCallback(async () => {
+    if (!id) return
+    const { data } = await wrongQuestionApi.list(id, {
+      subject_id: olympiadSubjectFilter,
+      q: olympiadSearch || undefined,
+      category: 'olympiad',
+    })
+    setOlympiadQuestions(data)
+  }, [id, olympiadSubjectFilter, olympiadSearch])
+
   useEffect(() => {
     if (!id) return
     const init = async () => {
@@ -62,12 +76,13 @@ export default function StudentDetailPage() {
         if (subjectRes.data.length) setSelectedSubject(subjectRes.data[0].id)
         await loadExams()
         await loadWrongQuestions()
+        await loadOlympiadQuestions()
       } finally {
         setLoading(false)
       }
     }
     init()
-  }, [id, loadExams, loadWrongQuestions])
+  }, [id, loadExams, loadWrongQuestions, loadOlympiadQuestions])
 
   useEffect(() => {
     loadTrend()
@@ -98,18 +113,18 @@ export default function StudentDetailPage() {
 
   if (!student) return <Typography.Text>学生不存在</Typography.Text>
 
+  const stageLabel = SCHOOL_LEVEL_LABELS[student.school_level]
+
   return (
-    <div style={{ maxWidth: 1100, margin: '0 auto', padding: '16px 16px 32px' }}>
-      <Space style={{ marginBottom: 16 }} wrap>
+    <div className="page-container">
+      <Space className="page-header" wrap>
         <Link to="/">
           <Button icon={<ArrowLeftOutlined />}>返回</Button>
         </Link>
         <Typography.Title level={4} style={{ margin: 0 }}>
           {student.name}
         </Typography.Title>
-        <Tag color={student.school_level === 'senior_high' ? 'purple' : 'blue'}>
-          {SCHOOL_LEVEL_LABELS[student.school_level]}
-        </Tag>
+        <Tag color={student.school_level === 'senior_high' ? 'purple' : 'blue'}>{stageLabel}</Tag>
         <Typography.Text type="secondary">{formatStudentMeta(student)}</Typography.Text>
         <Button icon={<DownloadOutlined />} onClick={handleExport}>
           导出 CSV
@@ -117,17 +132,13 @@ export default function StudentDetailPage() {
       </Space>
 
       <Tabs
+        className="student-tabs"
         items={[
           {
             key: 'scores',
             label: '成绩录入',
             children: (
-              <ScoreForm
-                studentId={id!}
-                subjects={subjects}
-                exams={exams}
-                onRefresh={loadExams}
-              />
+              <ScoreForm studentId={id!} subjects={subjects} exams={exams} onRefresh={loadExams} />
             ),
           },
           {
@@ -141,7 +152,7 @@ export default function StudentDetailPage() {
             children: (
               <div>
                 <Select
-                  style={{ width: 140, marginBottom: 16 }}
+                  style={{ width: '100%', maxWidth: 160, marginBottom: 16 }}
                   value={selectedSubject}
                   onChange={setSelectedSubject}
                   options={subjects.map((s) => ({ value: s.id, label: s.name }))}
@@ -161,9 +172,13 @@ export default function StudentDetailPage() {
             label: '错题库',
             children: (
               <div>
+                <Typography.Paragraph type="secondary" style={{ marginBottom: 12 }}>
+                  按{stageLabel}课程标准生成解法，严禁超纲
+                </Typography.Paragraph>
                 <WrongQuestionUpload
                   studentId={id!}
                   subjects={subjects}
+                  category="regular"
                   onUploaded={loadWrongQuestions}
                 />
                 <WrongQuestionFilters
@@ -174,51 +189,45 @@ export default function StudentDetailPage() {
                   onRefresh={loadWrongQuestions}
                   subjects={subjects}
                 />
-                <div style={{ display: 'grid', gridTemplateColumns: 'repeat(auto-fill, minmax(280px, 1fr))', gap: 16 }}>
-                  {wrongQuestions.map((wq) => (
-                    <div
-                      key={wq.id}
-                      onClick={() => setSelectedWq(wq.id)}
-                      style={{
-                        border: '1px solid #f0f0f0',
-                        borderRadius: 8,
-                        overflow: 'hidden',
-                        cursor: 'pointer',
-                      }}
-                    >
-                      <img
-                        src={wrongQuestionApi.imageUrl(wq.id)}
-                        alt="错题"
-                        style={{ width: '100%', height: 140, objectFit: 'cover', background: '#fafafa' }}
+                <WrongQuestionList
+                  items={wrongQuestions}
+                  selectedId={selectedWq}
+                  onSelect={setSelectedWq}
+                  onRefresh={loadWrongQuestions}
+                  emptyText="暂无错题"
                 />
-                      <div style={{ padding: 12 }}>
-                        <Space>
-                          <Typography.Text strong>{wq.subject_name}</Typography.Text>
-                          <Typography.Text type="secondary" style={{ fontSize: 12 }}>
-                            {STATUS_LABELS[wq.status]}
-                          </Typography.Text>
-                        </Space>
-                        <Typography.Paragraph
-                          ellipsis={{ rows: 2 }}
-                          style={{ margin: '8px 0 0', fontSize: 13 }}
-                        >
-                          {wq.question_text || wq.ocr_raw_text || '处理中…'}
+              </div>
+            ),
+          },
+          {
+            key: 'olympiad',
+            label: '奥数区',
+            children: (
+              <div>
+                <Typography.Paragraph type="secondary" style={{ marginBottom: 12 }}>
+                  {stageLabel}奥数解题思路，严格限制在{stageLabel}奥数培优范围内，禁止超纲
                 </Typography.Paragraph>
-                      </div>
-                    </div>
-                  ))}
-                </div>
-                {wrongQuestions.length === 0 && (
-                  <Typography.Text type="secondary">暂无错题</Typography.Text>
-                )}
-                {selectedWq && (
-                  <WrongQuestionDetail
-                    questionId={selectedWq}
-                    open={!!selectedWq}
-                    onClose={() => setSelectedWq(null)}
-                    onUpdated={loadWrongQuestions}
+                <WrongQuestionUpload
+                  studentId={id!}
+                  subjects={subjects}
+                  category="olympiad"
+                  onUploaded={loadOlympiadQuestions}
+                />
+                <WrongQuestionFilters
+                  subjectId={olympiadSubjectFilter}
+                  onSubjectChange={setOlympiadSubjectFilter}
+                  search={olympiadSearch}
+                  onSearchChange={setOlympiadSearch}
+                  onRefresh={loadOlympiadQuestions}
+                  subjects={subjects}
+                />
+                <WrongQuestionList
+                  items={olympiadQuestions}
+                  selectedId={selectedOlympiad}
+                  onSelect={setSelectedOlympiad}
+                  onRefresh={loadOlympiadQuestions}
+                  emptyText="暂无奥数题"
                 />
-                )}
               </div>
             ),
           },

frontend/src/pages/StudentsPage.tsx

@@ -44,7 +44,7 @@ export default function StudentsPage() {
   }
 
   return (
-    <div style={{ maxWidth: 960, margin: '0 auto', padding: '16px 16px 32px' }}>
+    <div className="page-container">
       <div
         style={{
           display: 'flex',

frontend/src/pages/WrongQuestionDetail.tsx

@@ -60,7 +60,7 @@ export default function WrongQuestionDetail({ questionId, open, onClose, onUpdat
       message.success('解法已重新生成')
       onUpdated()
     } catch {
-      message.error('生成失败，请确认 Ollama 已启动')
+      message.error('生成失败，请检查 AI 模型配置')
     } finally {
       setRegenerating(false)
     }
@@ -75,7 +75,11 @@ export default function WrongQuestionDetail({ questionId, open, onClose, onUpdat
 
   return (
     <Modal
-      title={wq ? `${wq.subject_name} · 错题详情` : '错题详情'}
+      title={
+        wq
+          ? `${wq.subject_name}${wq.category === 'olympiad' ? ' · 奥数' : ''} · 详情`
+          : '详情'
+      }
       open={open}
       onCancel={onClose}
       width="90%"

frontend/src/types/index.ts

@@ -17,6 +17,12 @@ export interface PublicSettings {
 
 export interface SystemSettings {
   registration_enabled: boolean
+  ai_provider: AIProvider
+  ollama_base_url: string | null
+  ollama_model: string | null
+  openai_base_url: string | null
+  openai_model: string | null
+  openai_api_key_set: boolean
   updated_at: string
 }
 
@@ -27,6 +33,10 @@ export interface AdminUser {
   created_at: string
 }
 
+export type WrongQuestionCategory = 'regular' | 'olympiad'
+
+export type AIProvider = 'ollama' | 'openai'
+
 export type SchoolLevel = 'junior_high' | 'senior_high'
 
 export interface Student {
@@ -96,6 +106,7 @@ export interface WrongQuestion {
   student_id: string
   subject_id: number
   subject_name?: string
+  category: WrongQuestionCategory
   image_path: string
   ocr_raw_text: string | null
   question_text: string | null