feat(ai): 支持双模型多视角AI设计生图与后台管理系统

- 实现AI多视角设计图生成功能，支持6个可选设计参数配置 - 集成SiliconFlow FLUX.1与火山引擎Seedream 4.5双模型切换 - 构建专业中文转英文prompt系统，提升AI生成质量 - 前端设计预览支持多视角切换与视角指示器展示 - 增加多视角设计图片DesignImage模型关联及存储 - 后端设计服务异步调用AI接口，失败时降级生成mock图 - 新增管理员后台管理路由及完整的权限校验机制 - 实现后台模块：仪表盘、系统配置、用户/品类/设计管理 - 配置数据库系统配置表，支持动态AI配置及热更新 - 增加用户管理员标识字段，管理后台登录鉴权支持 - 更新API接口支持多视角设计参数及后台管理接口 - 优化设计删除逻辑，删除多视角相关图片文件 - 前端新增管理后台页面与路由，布局样式独立分离 - 更新环境变量增加AI模型相关Key与参数配置说明 - 引入httpx异步HTTP客户端用于AI接口调用及图片下载 - README文档完善AI多视角生图与后台管理详细功能与流程说明
2026-03-27 15:29:50 +08:00
parent e3ff55b4db
commit 032c43525a
41 changed files with 3756 additions and 81 deletions
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # 玉宗 - 珠宝设计大师

-AI 驱动的珠宝玉石设计生成系统，支持 12 种玉石品类的智能设计图生成。
+AI 驱动的珠宝玉石设计生成系统，支持 12 种玉石品类的智能设计图生成，双 AI 模型多视角生图，内置后台管理系统。

 ## 功能特性

@@ -14,10 +14,31 @@ AI 驱动的珠宝玉石设计生成系统，支持 12 种玉石品类的智能
 - **实现方式**：品类通过 `flow_type` 字段区分三种工作流程：`full`（选子类型，如牌子选牌型）、`size_color`（选尺寸+颜色，如珠子）、`simple`（直接设计）；前端 `SubTypePanel` 组件根据 flow_type 动态渲染不同的选择界面
 - **优点**：灵活的品类工作流适配不同产品特性，用户操作路径清晰

-### 3. 设计图生成
- **功能说明**：用户选择品类参数后输入设计描述，系统生成 800×800 PNG 设计图
- **实现方式**：后端 `mock_generator` 使用 Pillow 生成设计图，包含品类信息、颜色映射（中文颜色名→HEX）、自动文字颜色对比计算、系统中文字体检测（PingFang/STHeiti/DroidSansFallback）；设计记录先创建（status=generating），生成完成后更新为 completed
- **优点**：即时生成预览图，支持颜色定制；后续可替换为真实 AI 模型
+### 3. AI 多视角设计图生成
+- **功能说明**：用户选择品类参数后，可配置 6 个可选设计参数（雕刻工艺、设计风格、题材纹样、尺寸规格、表面处理、用途场景），输入设计描述后系统自动生成多视角设计图（每个品类 2~4 张不同视角）
+- **双模型支持**：
+  - **SiliconFlow FLUX.1 [dev]**（默认）：~0.13元/张，性价比高
+  - **火山引擎 Seedream 4.5**（备选）：~0.30元/张，高质量
+- **提示词系统**：自动将中文参数（品类/子类型/颜色/6个设计参数+视角）构建为专业英文 prompt，包含玉雕行业专业术语、摄影角度、质量标签
+- **按品类视角配置**：
+  | 品类 | 视角数 | 视角列表 |
+  |------|--------|----------|
+  | 牌子 | 3 | 效果图(45°)、正面图、背面图 |
+  | 珠子 | 2 | 效果图(45°)、正面图 |
+  | 手把件/雕刻件/摆件 | 4 | 效果图(45°)、正面图、侧面图、背面图 |
+  | 手镯 | 3 | 效果图(45°)、正面图、侧面图 |
+  | 耳钉/耳饰/手链/项链/表带 | 2 | 效果图(45°)、正面图 |
+  | 戒指 | 3 | 效果图(45°)、正面图、侧面图 |
+- **降级机制**：AI 生图失败时自动降级到 mock_generator 生成占位图
+- **可选参数**：
+  - **雕刻工艺**：浮雕、圆雕、镂空雕、阴刻、线雕、俍色雕、薄意雕、素面，支持自定义输入
+  - **设计风格**：古典传统、新中式、写实、抽象意境、极简素面，支持自定义输入
+  - **题材纹样**：观音、弥勒、莲花、貔貅、龙凤、麒麟、山水、花鸟、人物、回纹、如意、平安扣，支持自定义输入
+  - **尺寸规格**：根据品类动态变化（牌子尺寸/手镯内径/手把件大小等），支持自定义输入
+  - **表面处理**：高光抛光、亚光/哑光、磨砂、保留皮色，支持自定义输入
+  - **用途场景**：日常佩戴、收藏鉴赏、送礼婚庆、把玩文玩，支持自定义输入
+- **实现方式**：后端 `prompt_builder` 自动构建专业英文 prompt → `ai_generator` 调用 AI API 生图 → 下载保存到本地 → 创建 `DesignImage` 多视角记录；降级时使用 `mock_generator` Pillow 生成占位图
+- **优点**：AI 真实生图 + 多视角展示，专业玉雕提示词系统，双模型热切换 + 降级兜底

 ### 4. 设计管理
 - **功能说明**：用户中心查看设计历史列表（分页），支持预览、下载、删除设计
@@ -29,6 +50,17 @@ AI 驱动的珠宝玉石设计生成系统，支持 12 种玉石品类的智能
 - **实现方式**：手机号唯一性校验，密码修改需验证旧密码；前端表单使用 Element Plus 表单验证
 - **优点**：安全的密码修改流程，手机号去重保障数据一致性

+### 6. 后台管理系统
+- **功能说明**：管理员专属后台，支持仪表盘、系统配置、用户管理、品类管理、设计管理五大模块
+- **实现方式**：
+  - **权限控制**：用户表 `is_admin` 字段 + `get_admin_user` 依赖注入，非管理员访问返回 403
+  - **系统配置**：`system_configs` 表存储配置项，数据库配置优先于 .env 文件；敏感信息（API Key）脱敏显示
+  - **品类管理**：支持品类、子类型、颜色的增删改查，含颜色拾色器
+  - **用户管理**：搜索、分页、设置/取消管理员、删除用户
+  - **设计管理**：查看所有用户设计，按状态筛选，管理员删除
+  - **前端独立布局**：左侧导航 + 内容区，管理后台与前台完全分离
+- **优点**：AI 配置可热更新（无需重启服务），品类数据可视化管理，用户权限分级控制
+
 ## 业务流程

 ### 整体流程图
@@ -43,9 +75,10 @@ graph TB
    D --> G[生成页 - 输入设计描述]
    E --> G
    F --> G
-    G --> H[提交生成请求]
-    H --> I[后端生成设计图]
-    I --> J[预览设计图]
+    G --> G2[选择可选参数]
+    G2 --> H[提交生成请求]
+    H --> I[后端 AI 多视角生图]
+    I --> J[预览多视角设计图]
    J --> K{用户操作}
    K -->|下载| L[下载 PNG 文件]
    K -->|重新生成| G
@@ -58,18 +91,20 @@ graph TB

 1. **用户认证**：注册时检查用户名唯一性 → 密码 bcrypt 加密 → 创建用户记录 → 注册成功后自动登录 → 获取 JWT Token 存储到 localStorage
 2. **品类选择**：进入设计页自动加载品类列表 → 左侧导航选择品类 → 根据 flow_type 加载对应的子类型/颜色数据 → 右侧面板显示选择界面
-3. **设计生成**：跳转生成页携带品类参数 → 输入设计描述（最多 500 字） → 提交请求 → 显示水墨风格加载动画 → 生成完成后展示预览
+3. **设计生成**：跳转生成页携带品类参数 → 选择可选参数（工艺/风格/题材/尺寸/表面/用途） → 输入设计描述（最多 2000 字） → 提交请求 → 显示水墨风格加载动画 → 生成完成后展示预览
 4. **设计管理**：用户中心加载设计列表 → 卡片网格展示 → 支持分页浏览、下载 PNG、删除（确认弹窗）、点击卡片跳转重新编辑

 ### 关键数据流图

 ```mermaid
 graph LR
-    A[前端 Store] -->|Axios + Token| B[API 路由]
-    B -->|Depends 注入| C[Service 层]
+    A[前端 Store] -->|“Axios + Token”| B[API 路由]
+    B -->|“Depends 注入”| C[Service 层]
+    C -->|prompt_builder| D1[英文 Prompt 构建]
+    D1 -->|ai_generator| D2[AI 生图 API]
+    D2 -->|下载保存| E[uploads/ 目录]
    C -->|SQLAlchemy ORM| D[MySQL 数据库]
-    C -->|Pillow 生成| E[uploads/ 目录]
-    E -->|StaticFiles 服务| F[前端图片展示]
+    E -->|StaticFiles 服务| F[前端多视角展示]
 ```

 ### API 调用链路
@@ -84,11 +119,22 @@ graph LR
 | `/api/categories` | GET | 获取品类列表 | - |
 | `/api/categories/{id}/sub-types` | GET | 获取子类型 | category_id |
 | `/api/categories/{id}/colors` | GET | 获取颜色选项 | category_id |
-| `/api/designs/generate` | POST | 生成设计 | category_id, sub_type_id, color_id, prompt |
+| `/api/designs/generate` | POST | 生成设计 | category_id, sub_type_id, color_id, prompt, carving_technique?, design_style?, motif?, size_spec?, surface_finish?, usage_scene? |
 | `/api/designs` | GET | 设计列表(分页) | page, page_size |
 | `/api/designs/{id}` | GET | 设计详情 | design_id |
 | `/api/designs/{id}` | DELETE | 删除设计 | design_id |
 | `/api/designs/{id}/download` | GET | 下载设计图 | design_id |
+| `/api/admin/dashboard` | GET | 管理仪表盘统计 | Bearer Token (管理员) |
+| `/api/admin/configs` | GET | 获取系统配置 | group? |
+| `/api/admin/configs` | PUT | 更新系统配置 | configs: {key: value} |
+| `/api/admin/configs/init` | POST | 初始化默认配置 | - |
+| `/api/admin/users` | GET | 用户列表 | page, page_size, keyword? |
+| `/api/admin/users/{id}/admin` | PUT | 设置管理员 | is_admin |
+| `/api/admin/categories` | GET/POST | 品类列表/创建 | name, flow_type, sort_order |
+| `/api/admin/categories/{id}` | PUT/DELETE | 更新/删除品类 | - |
+| `/api/admin/sub-types` | POST | 创建子类型 | category_id, name |
+| `/api/admin/colors` | POST | 创建颜色 | category_id, name, hex_code |
+| `/api/admin/designs` | GET | 所有设计列表 | page, status? |

 ## 技术栈

@@ -107,7 +153,9 @@ graph LR
 | **数据库驱动** | PyMySQL | 1.1.0 | MySQL 连接 |
 | **认证** | python-jose | 3.3.0 | JWT Token |
 | **密码加密** | passlib + bcrypt | 1.7.4 | bcrypt 哈希 |
-| **图片生成** | Pillow | 10.2.0 | PNG 设计图生成 |
+| **图片生成** | Pillow | 10.2.0 | PNG 设计图生成（mock 降级） |
+| **AI 生图** | SiliconFlow FLUX.1 / Seedream 4.5 | - | 双模型多视角生图 |
+| **HTTP 客户端** | httpx | 0.27.0 | 异步调用 AI API + 图片下载 |
 | **数据库** | MySQL | - | utf8mb4 编码 |

 ## 目录结构
@@ -124,14 +172,18 @@ YuShiSheJi/
 │   │   │   ├── auth.py         # 认证路由（注册/登录）
 │   │   │   ├── categories.py   # 品类查询路由
 │   │   │   ├── designs.py      # 设计生成/管理路由
+│   │   │   ├── admin.py        # 管理后台路由
 │   │   │   └── users.py        # 用户信息路由
 │   │   ├── schemas/            # Pydantic 数据验证
 │   │   ├── services/           # 业务逻辑层
 │   │   │   ├── auth_service.py # 认证业务
-│   │   │   ├── design_service.py # 设计业务
-│   │   │   └── mock_generator.py # 图片生成服务
+│   │   │   ├── design_service.py # 设计业务（AI生图+降级）
+│   │   │   ├── ai_generator.py # AI 生图服务（双模型）
+│   │   │   ├── prompt_builder.py # 提示词构建器
+│   │   │   ├── config_service.py # 配置服务（数据库优先于.env）
+│   │   │   └── mock_generator.py # Mock图片生成（降级兜底）
 │   │   ├── utils/              # 工具函数
-│   │   │   ├── deps.py         # 认证依赖注入
+│   │   │   ├── deps.py         # 认证/管理员依赖注入
 │   │   │   └── security.py     # JWT/密码工具
 │   │   ├── config.py           # 配置管理
 │   │   ├── database.py         # 数据库连接
@@ -145,9 +197,11 @@ YuShiSheJi/
 │   │   │   ├── request.ts      # Axios 实例（拦截器）
 │   │   │   ├── auth.ts         # 认证接口
 │   │   │   ├── category.ts     # 品类接口
-│   │   │   └── design.ts       # 设计接口
+│   │   │   ├── design.ts       # 设计接口
+│   │   │   └── admin.ts        # 管理后台接口
 │   │   ├── components/         # 公共组件
 │   │   │   ├── AppHeader.vue   # 顶部导航栏
+│   │   │   ├── AdminLayout.vue # 管理后台布局（侧边栏+内容区）
 │   │   │   ├── CategoryNav.vue # 品类左侧导航
 │   │   │   ├── SubTypePanel.vue# 子类型/颜色选择面板
 │   │   │   ├── ColorPicker.vue # 颜色选择器
@@ -157,6 +211,12 @@ YuShiSheJi/
 │   │   │   ├── category.ts     # 品类状态
 │   │   │   └── design.ts       # 设计状态
 │   │   ├── views/              # 页面组件
+│   │   │   ├── admin/          # 管理后台页面
+│   │   │   │   ├── Dashboard.vue    # 仪表盘
+│   │   │   │   ├── ConfigManage.vue # 系统配置管理
+│   │   │   │   ├── UserManage.vue   # 用户管理
+│   │   │   │   ├── CategoryManage.vue # 品类管理
+│   │   │   │   └── DesignManage.vue # 设计管理
 │   │   │   ├── Login.vue       # 登录页
 │   │   │   ├── Register.vue    # 注册页
 │   │   │   ├── DesignPage.vue  # 设计页（品类选择）
@@ -236,11 +296,13 @@ uvicorn app.main:app --host 0.0.0.0 --port 8000

 | 分类 | 表名 | 说明 |
 |-----|------|-----|
-| 用户 | `users` | 用户基本信息（用户名、密码、昵称、手机、头像） |
+| 用户 | `users` | 用户基本信息（用户名、密码、昵称、手机、头像、管理员标识） |
 | 品类 | `categories` | 12 种玉石品类（名称、图标、排序、流程类型） |
 | 品类 | `sub_types` | 品类子类型（牌型/尺寸，关联品类） |
 | 品类 | `colors` | 品类颜色选项（颜色名、HEX 色值，关联品类） |
-| 设计 | `designs` | 设计记录（用户、品类、子类型、颜色、描述、图片URL、状态） |
+| 设计 | `designs` | 设计记录（用户、品类、子类型、颜色、描述、6个可选参数、图片URL、状态） |
+| 设计 | `design_images` | AI 多视角设计图（视角名称、图片URL、AI模型、prompt、排序） |
+| 配置 | `system_configs` | 系统配置（AI API Key、模型、尺寸等，支持后台管理动态修改） |

 ## 环境变量

@@ -251,6 +313,12 @@ uvicorn app.main:app --host 0.0.0.0 --port 8000
 | `ALGORITHM` | `HS256` | 否 | JWT 算法 |
 | `ACCESS_TOKEN_EXPIRE_MINUTES` | `1440` | 否 | Token 有效期（分钟，默认 24 小时） |
 | `UPLOAD_DIR` | `uploads` | 否 | 图片上传存储目录 |
+| `SILICONFLOW_API_KEY` | 空 | 是(生图) | 硅基流动 API Key（FLUX.1 生图） |
+| `SILICONFLOW_BASE_URL` | `https://api.siliconflow.cn/v1` | 否 | 硅基流动 API 地址 |
+| `VOLCENGINE_API_KEY` | 空 | 否 | 火山引擎 API Key（Seedream 4.5 备选） |
+| `VOLCENGINE_BASE_URL` | `https://ark.cn-beijing.volces.com/api/v3` | 否 | 火山引擎 API 地址 |
+| `AI_IMAGE_MODEL` | `flux-dev` | 否 | 默认 AI 模型（flux-dev / seedream-4.5） |
+| `AI_IMAGE_SIZE` | `1024` | 否 | 生成图片尺寸 |

 ## 常用命令

--- a/backend/.env
+++ b/backend/.env
@@ -3,3 +3,11 @@ SECRET_KEY=yuzong-jewelry-design-secret-key-2026
 ALGORITHM=HS256
 ACCESS_TOKEN_EXPIRE_MINUTES=1440
 UPLOAD_DIR=uploads
+
+# AI 生图配置
+SILICONFLOW_API_KEY=
+SILICONFLOW_BASE_URL=https://api.siliconflow.cn/v1
+VOLCENGINE_API_KEY=
+VOLCENGINE_BASE_URL=https://ark.cn-beijing.volces.com/api/v3
+AI_IMAGE_MODEL=flux-dev
+AI_IMAGE_SIZE=1024
--- a/backend/.env.example
+++ b/backend/.env.example
@@ -3,3 +3,11 @@ SECRET_KEY=your-secret-key-change-this
 ALGORITHM=HS256
 ACCESS_TOKEN_EXPIRE_MINUTES=1440
 UPLOAD_DIR=uploads
+
+# AI 生图配置
+SILICONFLOW_API_KEY=sk-xxx
+SILICONFLOW_BASE_URL=https://api.siliconflow.cn/v1
+VOLCENGINE_API_KEY=xxx
+VOLCENGINE_BASE_URL=https://ark.cn-beijing.volces.com/api/v3
+AI_IMAGE_MODEL=flux-dev
+AI_IMAGE_SIZE=1024
--- a/backend/app/config.py
+++ b/backend/app/config.py
@@ -13,6 +13,13 @@ class Settings(BaseSettings):
    ALGORITHM: str = "HS256"
    ACCESS_TOKEN_EXPIRE_MINUTES: int = 1440
    UPLOAD_DIR: str = "uploads"
+    # AI 生图配置
+    SILICONFLOW_API_KEY: str = ""
+    SILICONFLOW_BASE_URL: str = "https://api.siliconflow.cn/v1"
+    VOLCENGINE_API_KEY: str = ""
+    VOLCENGINE_BASE_URL: str = "https://ark.cn-beijing.volces.com/api/v3"
+    AI_IMAGE_MODEL: str = "flux-dev"  # flux-dev 或 seedream-4.5
+    AI_IMAGE_SIZE: int = 1024

    class Config:
        env_file = ".env"
--- a/backend/app/main.py
+++ b/backend/app/main.py
@@ -10,6 +10,7 @@ from fastapi.staticfiles import StaticFiles
 from .config import settings
 from .routers import categories, designs, users
 from .routers import auth
+from .routers import admin


@asynccontextmanager
@@ -62,6 +63,7 @@ app.include_router(auth.router)
 app.include_router(categories.router)
 app.include_router(designs.router)
 app.include_router(users.router)
+app.include_router(admin.router)

 # 配置静态文件服务
 app.mount("/uploads", StaticFiles(directory="uploads"), name="uploads")
--- a/backend/app/models/init.py
+++ b/backend/app/models/init.py
@@ -6,6 +6,9 @@ from ..database import Base
 from .user import User
 from .category import Category, SubType, Color
 from .design import Design
+from .design_image import DesignImage
+from .system_config import SystemConfig
+from .prompt_template import PromptTemplate, PromptMapping

 __all__ = [
    "Base",
@@ -13,5 +16,9 @@ __all__ = [
    "Category",
    "SubType",
    "Color",
-    "Design"
+    "Design",
+    "DesignImage",
+    "SystemConfig",
+    "PromptTemplate",
+    "PromptMapping",
 ]
--- a/backend/app/models/design.py
+++ b/backend/app/models/design.py
@@ -34,6 +34,7 @@ class Design(Base):
    category = relationship("Category", back_populates="designs")
    sub_type = relationship("SubType", back_populates="designs")
    color = relationship("Color", back_populates="designs")
+    images = relationship("DesignImage", back_populates="design", cascade="all, delete-orphan", order_by="DesignImage.sort_order")

    def __repr__(self):
        return f"<Design(id={self.id}, status='{self.status}')>"
--- a/backend/app/models/design_image.py
+++ b/backend/app/models/design_image.py
@@ -0,0 +1,29 @@
+"""
+设计图片模型
+存储每个设计的多视角图片
+"""
+from sqlalchemy import Column, BigInteger, Integer, String, Text, DateTime, ForeignKey
+from sqlalchemy.sql import func
+from sqlalchemy.orm import relationship
+
+from ..database import Base
+
+
+class DesignImage(Base):
+    """设计图片表 - 存储多视角设计图"""
+    __tablename__ = "design_images"
+
+    id = Column(BigInteger, primary_key=True, autoincrement=True, comment="图片ID")
+    design_id = Column(BigInteger, ForeignKey("designs.id", ondelete="CASCADE"), nullable=False, comment="关联设计ID")
+    view_name = Column(String(20), nullable=False, comment="视角名称: 效果图/正面图/侧面图/背面图")
+    image_url = Column(String(255), nullable=True, comment="图片URL路径")
+    model_used = Column(String(50), nullable=True, comment="使用的AI模型: flux-dev/seedream-4.5")
+    prompt_used = Column(Text, nullable=True, comment="实际使用的英文prompt")
+    sort_order = Column(Integer, default=0, comment="排序")
+    created_at = Column(DateTime, server_default=func.now(), comment="创建时间")
+
+    # 关联关系
+    design = relationship("Design", back_populates="images")
+
+    def __repr__(self):
+        return f"<DesignImage(id={self.id}, view='{self.view_name}')>"
--- a/backend/app/models/prompt_template.py
+++ b/backend/app/models/prompt_template.py
@@ -0,0 +1,37 @@
+"""
+提示词模板模型
+存储可后台配置的提示词模板和映射数据
+"""
+from sqlalchemy import Column, BigInteger, Integer, String, Text, DateTime
+from sqlalchemy.sql import func
+
+from ..database import Base
+
+
+class PromptTemplate(Base):
+    """提示词模板表"""
+    __tablename__ = "prompt_templates"
+
+    id = Column(BigInteger, primary_key=True, autoincrement=True, comment="模板ID")
+    template_key = Column(String(100), unique=True, nullable=False, comment="模板键: main_template / quality_suffix")
+    template_value = Column(Text, nullable=False, comment="模板内容，支持{变量}占位符")
+    description = Column(String(255), nullable=True, comment="模板说明")
+    updated_at = Column(DateTime, server_default=func.now(), onupdate=func.now(), comment="更新时间")
+
+    def __repr__(self):
+        return f"<PromptTemplate(key='{self.template_key}')>"
+
+
+class PromptMapping(Base):
+    """提示词映射表 - 中文参数到英文描述的映射"""
+    __tablename__ = "prompt_mappings"
+
+    id = Column(BigInteger, primary_key=True, autoincrement=True, comment="映射ID")
+    mapping_type = Column(String(50), nullable=False, comment="映射类型: category/color/carving/style/motif/finish/scene/view/sub_type")
+    cn_key = Column(String(100), nullable=False, comment="中文键")
+    en_value = Column(Text, nullable=False, comment="英文描述")
+    sort_order = Column(Integer, default=0, comment="排序")
+    updated_at = Column(DateTime, server_default=func.now(), onupdate=func.now(), comment="更新时间")
+
+    def __repr__(self):
+        return f"<PromptMapping(type='{self.mapping_type}', key='{self.cn_key}')>"
--- a/backend/app/models/system_config.py
+++ b/backend/app/models/system_config.py
@@ -0,0 +1,24 @@
+"""
+系统配置模型
+存储可通过后台管理的系统配置项
+"""
+from sqlalchemy import Column, BigInteger, String, Text, DateTime
+from sqlalchemy.sql import func
+
+from ..database import Base
+
+
+class SystemConfig(Base):
+    """系统配置表"""
+    __tablename__ = "system_configs"
+
+    id = Column(BigInteger, primary_key=True, autoincrement=True, comment="配置ID")
+    config_key = Column(String(100), unique=True, nullable=False, comment="配置键")
+    config_value = Column(Text, nullable=True, comment="配置值")
+    description = Column(String(255), nullable=True, comment="配置说明")
+    config_group = Column(String(50), nullable=False, default="general", comment="配置分组: ai/general")
+    is_secret = Column(String(1), nullable=False, default="N", comment="是否敏感信息(Y/N)")
+    updated_at = Column(DateTime, server_default=func.now(), onupdate=func.now(), comment="更新时间")
+
+    def __repr__(self):
+        return f"<SystemConfig(key='{self.config_key}')>"
--- a/backend/app/models/user.py
+++ b/backend/app/models/user.py
@@ -1,7 +1,7 @@
 """
 用户模型
 """
-from sqlalchemy import Column, BigInteger, String, DateTime
+from sqlalchemy import Column, BigInteger, String, DateTime, Boolean
 from sqlalchemy.sql import func
 from sqlalchemy.orm import relationship

@@ -18,6 +18,7 @@ class User(Base):
    hashed_password = Column(String(255), nullable=False, comment="加密密码")
    nickname = Column(String(50), nullable=True, comment="昵称")
    avatar = Column(String(255), nullable=True, comment="头像URL")
+    is_admin = Column(Boolean, default=False, nullable=False, comment="是否管理员")
    created_at = Column(DateTime, server_default=func.now(), comment="创建时间")
    updated_at = Column(DateTime, server_default=func.now(), onupdate=func.now(), comment="更新时间")

--- a/backend/app/routers/admin.py
+++ b/backend/app/routers/admin.py
@@ -0,0 +1,627 @@
+"""
+管理后台路由
+提供系统配置、用户管理、品类管理、设计管理接口
+所有接口需要管理员权限
+"""
+from datetime import datetime, timedelta
+import httpx
+from fastapi import APIRouter, Depends, HTTPException, status, Query
+from pydantic import BaseModel
+from sqlalchemy.orm import Session
+from sqlalchemy import func, or_
+
+from ..database import get_db
+from ..models import User, Design, Category, SubType, Color, SystemConfig, PromptTemplate, PromptMapping
+from ..schemas.admin import (
+    SystemConfigItem, SystemConfigUpdate, SystemConfigResponse,
+    AdminUserResponse, AdminUserListResponse, AdminSetAdmin,
+    CategoryCreate, CategoryUpdate, SubTypeCreate, SubTypeUpdate,
+    ColorCreate, ColorUpdate,
+    AdminDesignListResponse, DashboardStats,
+    PromptTemplateItem, PromptTemplateUpdate,
+    PromptMappingItem, PromptMappingCreate, PromptMappingUpdate
+)
+from ..utils.deps import get_admin_user
+
+router = APIRouter(prefix="/api/admin", tags=["管理后台"])
+
+
+# ==================== 仪表盘 ====================
+
+@router.get("/dashboard", response_model=DashboardStats)
+def get_dashboard(
+    db: Session = Depends(get_db),
+    admin: User = Depends(get_admin_user)
+):
+    """获取仪表盘统计数据"""
+    today = datetime.now().replace(hour=0, minute=0, second=0, microsecond=0)
+    return DashboardStats(
+        total_users=db.query(func.count(User.id)).scalar() or 0,
+        total_designs=db.query(func.count(Design.id)).scalar() or 0,
+        total_categories=db.query(func.count(Category.id)).scalar() or 0,
+        today_designs=db.query(func.count(Design.id)).filter(Design.created_at >= today).scalar() or 0,
+        today_users=db.query(func.count(User.id)).filter(User.created_at >= today).scalar() or 0,
+    )
+
+
+# ==================== 系统配置管理 ====================
+
+@router.get("/configs", response_model=SystemConfigResponse)
+def get_configs(
+    group: str = Query(None, description="按分组筛选"),
+    db: Session = Depends(get_db),
+    admin: User = Depends(get_admin_user)
+):
+    """获取系统配置列表"""
+    query = db.query(SystemConfig)
+    if group:
+        query = query.filter(SystemConfig.config_group == group)
+    items = query.order_by(SystemConfig.config_group, SystemConfig.config_key).all()
+    
+    # 敏感信息脱敏显示
+    result = []
+    for item in items:
+        cfg = SystemConfigItem.model_validate(item)
+        if item.is_secret == "Y" and item.config_value:
+            # 只显示前4位和后4位
+            val = item.config_value
+            if len(val) > 8:
+                cfg.config_value = val[:4] + "****" + val[-4:]
+            else:
+                cfg.config_value = "****"
+        result.append(cfg)
+    return SystemConfigResponse(items=result)
+
+
+@router.put("/configs")
+def update_configs(
+    data: SystemConfigUpdate,
+    db: Session = Depends(get_db),
+    admin: User = Depends(get_admin_user)
+):
+    """批量更新系统配置"""
+    updated = 0
+    for key, value in data.configs.items():
+        config = db.query(SystemConfig).filter(SystemConfig.config_key == key).first()
+        if config:
+            config.config_value = value
+            updated += 1
+        else:
+            # 自动创建不存在的配置项
+            new_config = SystemConfig(
+                config_key=key,
+                config_value=value,
+                config_group="general"
+            )
+            db.add(new_config)
+            updated += 1
+    db.commit()
+    return {"message": f"已更新 {updated} 项配置"}
+
+
+@router.post("/configs/init")
+def init_default_configs(
+    db: Session = Depends(get_db),
+    admin: User = Depends(get_admin_user)
+):
+    """初始化默认配置项（仅当配置表为空时）"""
+    count = db.query(func.count(SystemConfig.id)).scalar()
+    if count > 0:
+        return {"message": "配置已存在，跳过初始化"}
+    
+    defaults = [
+        ("SILICONFLOW_API_KEY", "", "SiliconFlow API Key", "ai", "Y"),
+        ("SILICONFLOW_BASE_URL", "https://api.siliconflow.cn/v1", "SiliconFlow 接口地址", "ai", "N"),
+        ("VOLCENGINE_API_KEY", "", "火山引擎 API Key", "ai", "Y"),
+        ("VOLCENGINE_BASE_URL", "https://ark.cn-beijing.volces.com/api/v3", "火山引擎接口地址", "ai", "N"),
+        ("AI_IMAGE_MODEL", "flux-dev", "默认AI生图模型 (flux-dev / seedream-4.5)", "ai", "N"),
+        ("AI_IMAGE_SIZE", "1024", "AI生图默认尺寸", "ai", "N"),
+    ]
+    for key, val, desc, group, secret in defaults:
+        db.add(SystemConfig(
+            config_key=key, config_value=val,
+            description=desc, config_group=group, is_secret=secret
+        ))
+    db.commit()
+    return {"message": f"已初始化 {len(defaults)} 项默认配置"}
+
+
+class TestConnectionRequest(BaseModel):
+    """API 连接测试请求"""
+    provider: str  # siliconflow / volcengine
+    api_key: str
+    base_url: str
+
+
+@router.post("/configs/test")
+async def test_api_connection(
+    data: TestConnectionRequest,
+    admin: User = Depends(get_admin_user)
+):
+    """测试 AI API 连接是否正常"""
+    try:
+        if data.provider == "siliconflow":
+            url = f"{data.base_url}/models"
+            headers = {"Authorization": f"Bearer {data.api_key}"}
+            async with httpx.AsyncClient(timeout=15) as client:
+                resp = await client.get(url, headers=headers)
+            if resp.status_code == 200:
+                return {"message": "连接成功，API Key 有效"}
+            elif resp.status_code == 401:
+                raise HTTPException(status_code=400, detail="API Key 无效，请检查")
+            else:
+                raise HTTPException(status_code=400, detail=f"请求失败，状态码: {resp.status_code}")
+        elif data.provider == "volcengine":
+            url = f"{data.base_url}/models"
+            headers = {"Authorization": f"Bearer {data.api_key}"}
+            async with httpx.AsyncClient(timeout=15) as client:
+                resp = await client.get(url, headers=headers)
+            if resp.status_code == 200:
+                return {"message": "连接成功，API Key 有效"}
+            elif resp.status_code == 401:
+                raise HTTPException(status_code=400, detail="API Key 无效，请检查")
+            else:
+                # 火山引擎可能返回其他状态码但连接本身成功
+                return {"message": f"连接成功（状态码: {resp.status_code}）"}
+        else:
+            raise HTTPException(status_code=400, detail=f"未知的服务提供商: {data.provider}")
+    except httpx.ConnectError:
+        raise HTTPException(status_code=400, detail="连接失败，请检查接口地址")
+    except httpx.TimeoutException:
+        raise HTTPException(status_code=400, detail="连接超时，请检查网络")
+    except HTTPException:
+        raise
+    except Exception as e:
+        raise HTTPException(status_code=400, detail=f"测试失败: {str(e)}")
+
+
+# ==================== 用户管理 ====================
+
+@router.get("/users", response_model=AdminUserListResponse)
+def get_users(
+    page: int = Query(1, ge=1),
+    page_size: int = Query(20, ge=1, le=100),
+    keyword: str = Query(None, description="搜索用户名/昵称"),
+    db: Session = Depends(get_db),
+    admin: User = Depends(get_admin_user)
+):
+    """获取用户列表"""
+    query = db.query(User)
+    if keyword:
+        query = query.filter(
+            or_(User.username.like(f"%{keyword}%"), User.nickname.like(f"%{keyword}%"))
+        )
+    
+    total = query.count()
+    users = query.order_by(User.created_at.desc()).offset((page - 1) * page_size).limit(page_size).all()
+    
+    items = []
+    for u in users:
+        design_count = db.query(func.count(Design.id)).filter(Design.user_id == u.id).scalar() or 0
+        items.append(AdminUserResponse(
+            id=u.id, username=u.username, nickname=u.nickname,
+            phone=u.phone, is_admin=u.is_admin,
+            created_at=u.created_at, design_count=design_count
+        ))
+    
+    return AdminUserListResponse(items=items, total=total, page=page, page_size=page_size)
+
+
+@router.put("/users/{user_id}/admin")
+def set_user_admin(
+    user_id: int,
+    data: AdminSetAdmin,
+    db: Session = Depends(get_db),
+    admin: User = Depends(get_admin_user)
+):
+    """设置/取消管理员"""
+    user = db.query(User).filter(User.id == user_id).first()
+    if not user:
+        raise HTTPException(status_code=404, detail="用户不存在")
+    if user.id == admin.id:
+        raise HTTPException(status_code=400, detail="不能修改自己的管理员状态")
+    user.is_admin = data.is_admin
+    db.commit()
+    return {"message": f"用户 {user.username} {'已设为管理员' if data.is_admin else '已取消管理员'}"}
+
+
+@router.delete("/users/{user_id}")
+def delete_user(
+    user_id: int,
+    db: Session = Depends(get_db),
+    admin: User = Depends(get_admin_user)
+):
+    """删除用户"""
+    user = db.query(User).filter(User.id == user_id).first()
+    if not user:
+        raise HTTPException(status_code=404, detail="用户不存在")
+    if user.id == admin.id:
+        raise HTTPException(status_code=400, detail="不能删除自己")
+    if user.is_admin:
+        raise HTTPException(status_code=400, detail="不能删除其他管理员")
+    db.delete(user)
+    db.commit()
+    return {"message": "用户已删除"}
+
+
+# ==================== 品类管理 ====================
+
+@router.get("/categories")
+def get_categories(
+    db: Session = Depends(get_db),
+    admin: User = Depends(get_admin_user)
+):
+    """获取所有品类（含子类型和颜色）"""
+    categories = db.query(Category).order_by(Category.sort_order).all()
+    result = []
+    for cat in categories:
+        result.append({
+            "id": cat.id,
+            "name": cat.name,
+            "icon": cat.icon,
+            "sort_order": cat.sort_order,
+            "flow_type": cat.flow_type,
+            "sub_types": [{"id": st.id, "name": st.name, "description": st.description,
+                          "preview_image": st.preview_image, "sort_order": st.sort_order}
+                         for st in sorted(cat.sub_types, key=lambda x: x.sort_order)],
+            "colors": [{"id": c.id, "name": c.name, "hex_code": c.hex_code, "sort_order": c.sort_order}
+                      for c in sorted(cat.colors, key=lambda x: x.sort_order)]
+        })
+    return result
+
+
+@router.post("/categories")
+def create_category(
+    data: CategoryCreate,
+    db: Session = Depends(get_db),
+    admin: User = Depends(get_admin_user)
+):
+    """创建品类"""
+    cat = Category(name=data.name, icon=data.icon, sort_order=data.sort_order, flow_type=data.flow_type)
+    db.add(cat)
+    db.commit()
+    db.refresh(cat)
+    return {"id": cat.id, "message": "品类创建成功"}
+
+
+@router.put("/categories/{cat_id}")
+def update_category(
+    cat_id: int,
+    data: CategoryUpdate,
+    db: Session = Depends(get_db),
+    admin: User = Depends(get_admin_user)
+):
+    """更新品类"""
+    cat = db.query(Category).filter(Category.id == cat_id).first()
+    if not cat:
+        raise HTTPException(status_code=404, detail="品类不存在")
+    for field, value in data.model_dump(exclude_unset=True).items():
+        setattr(cat, field, value)
+    db.commit()
+    return {"message": "品类更新成功"}
+
+
+@router.delete("/categories/{cat_id}")
+def delete_category(
+    cat_id: int,
+    db: Session = Depends(get_db),
+    admin: User = Depends(get_admin_user)
+):
+    """删除品类（级联删除子类型和颜色）"""
+    cat = db.query(Category).filter(Category.id == cat_id).first()
+    if not cat:
+        raise HTTPException(status_code=404, detail="品类不存在")
+    # 检查是否有关联设计
+    design_count = db.query(func.count(Design.id)).filter(Design.category_id == cat_id).scalar()
+    if design_count > 0:
+        raise HTTPException(status_code=400, detail=f"品类下有 {design_count} 个设计，无法删除")
+    # 删除子类型和颜色
+    db.query(SubType).filter(SubType.category_id == cat_id).delete()
+    db.query(Color).filter(Color.category_id == cat_id).delete()
+    db.delete(cat)
+    db.commit()
+    return {"message": "品类已删除"}
+
+
+# -- 子类型 --
+@router.post("/sub-types")
+def create_sub_type(
+    data: SubTypeCreate,
+    db: Session = Depends(get_db),
+    admin: User = Depends(get_admin_user)
+):
+    """创建子类型"""
+    cat = db.query(Category).filter(Category.id == data.category_id).first()
+    if not cat:
+        raise HTTPException(status_code=404, detail="品类不存在")
+    st = SubType(category_id=data.category_id, name=data.name,
+                 description=data.description, preview_image=data.preview_image,
+                 sort_order=data.sort_order)
+    db.add(st)
+    db.commit()
+    db.refresh(st)
+    return {"id": st.id, "message": "子类型创建成功"}
+
+
+@router.put("/sub-types/{st_id}")
+def update_sub_type(
+    st_id: int,
+    data: SubTypeUpdate,
+    db: Session = Depends(get_db),
+    admin: User = Depends(get_admin_user)
+):
+    """更新子类型"""
+    st = db.query(SubType).filter(SubType.id == st_id).first()
+    if not st:
+        raise HTTPException(status_code=404, detail="子类型不存在")
+    for field, value in data.model_dump(exclude_unset=True).items():
+        setattr(st, field, value)
+    db.commit()
+    return {"message": "子类型更新成功"}
+
+
+@router.delete("/sub-types/{st_id}")
+def delete_sub_type(
+    st_id: int,
+    db: Session = Depends(get_db),
+    admin: User = Depends(get_admin_user)
+):
+    """删除子类型"""
+    st = db.query(SubType).filter(SubType.id == st_id).first()
+    if not st:
+        raise HTTPException(status_code=404, detail="子类型不存在")
+    db.delete(st)
+    db.commit()
+    return {"message": "子类型已删除"}
+
+
+# -- 颜色 --
+@router.post("/colors")
+def create_color(
+    data: ColorCreate,
+    db: Session = Depends(get_db),
+    admin: User = Depends(get_admin_user)
+):
+    """创建颜色"""
+    cat = db.query(Category).filter(Category.id == data.category_id).first()
+    if not cat:
+        raise HTTPException(status_code=404, detail="品类不存在")
+    color = Color(category_id=data.category_id, name=data.name,
+                  hex_code=data.hex_code, sort_order=data.sort_order)
+    db.add(color)
+    db.commit()
+    db.refresh(color)
+    return {"id": color.id, "message": "颜色创建成功"}
+
+
+@router.put("/colors/{color_id}")
+def update_color(
+    color_id: int,
+    data: ColorUpdate,
+    db: Session = Depends(get_db),
+    admin: User = Depends(get_admin_user)
+):
+    """更新颜色"""
+    color = db.query(Color).filter(Color.id == color_id).first()
+    if not color:
+        raise HTTPException(status_code=404, detail="颜色不存在")
+    for field, value in data.model_dump(exclude_unset=True).items():
+        setattr(color, field, value)
+    db.commit()
+    return {"message": "颜色更新成功"}
+
+
+@router.delete("/colors/{color_id}")
+def delete_color(
+    color_id: int,
+    db: Session = Depends(get_db),
+    admin: User = Depends(get_admin_user)
+):
+    """删除颜色"""
+    color = db.query(Color).filter(Color.id == color_id).first()
+    if not color:
+        raise HTTPException(status_code=404, detail="颜色不存在")
+    db.delete(color)
+    db.commit()
+    return {"message": "颜色已删除"}
+
+
+# ==================== 设计管理 ====================
+
+@router.get("/designs", response_model=AdminDesignListResponse)
+def get_all_designs(
+    page: int = Query(1, ge=1),
+    page_size: int = Query(20, ge=1, le=100),
+    user_id: int = Query(None, description="按用户筛选"),
+    status_filter: str = Query(None, alias="status", description="按状态筛选"),
+    db: Session = Depends(get_db),
+    admin: User = Depends(get_admin_user)
+):
+    """获取所有设计列表"""
+    query = db.query(Design)
+    if user_id:
+        query = query.filter(Design.user_id == user_id)
+    if status_filter:
+        query = query.filter(Design.status == status_filter)
+    
+    total = query.count()
+    designs = query.order_by(Design.created_at.desc()).offset((page - 1) * page_size).limit(page_size).all()
+    
+    items = []
+    for d in designs:
+        items.append({
+            "id": d.id,
+            "user_id": d.user_id,
+            "username": d.user.username if d.user else None,
+            "category_name": d.category.name if d.category else None,
+            "sub_type_name": d.sub_type.name if d.sub_type else None,
+            "color_name": d.color.name if d.color else None,
+            "prompt": d.prompt,
+            "image_url": d.image_url,
+            "status": d.status,
+            "created_at": d.created_at.isoformat() if d.created_at else None,
+        })
+    
+    return AdminDesignListResponse(items=items, total=total, page=page, page_size=page_size)
+
+
+@router.delete("/designs/{design_id}")
+def admin_delete_design(
+    design_id: int,
+    db: Session = Depends(get_db),
+    admin: User = Depends(get_admin_user)
+):
+    """管理员删除任意设计"""
+    design = db.query(Design).filter(Design.id == design_id).first()
+    if not design:
+        raise HTTPException(status_code=404, detail="设计不存在")
+    db.delete(design)
+    db.commit()
+    return {"message": "设计已删除"}
+
+
+# ==================== 提示词管理 ====================
+
+@router.get("/prompt-templates")
+def get_prompt_templates(
+    db: Session = Depends(get_db),
+    admin: User = Depends(get_admin_user)
+):
+    """获取所有提示词模板"""
+    templates = db.query(PromptTemplate).order_by(PromptTemplate.template_key).all()
+    return [PromptTemplateItem.model_validate(t) for t in templates]
+
+
+@router.put("/prompt-templates/{template_id}")
+def update_prompt_template(
+    template_id: int,
+    data: PromptTemplateUpdate,
+    db: Session = Depends(get_db),
+    admin: User = Depends(get_admin_user)
+):
+    """更新提示词模板"""
+    tpl = db.query(PromptTemplate).filter(PromptTemplate.id == template_id).first()
+    if not tpl:
+        raise HTTPException(status_code=404, detail="模板不存在")
+    tpl.template_value = data.template_value
+    if data.description is not None:
+        tpl.description = data.description
+    db.commit()
+    return {"message": f"模板 '{tpl.template_key}' 更新成功"}
+
+
+@router.get("/prompt-mappings")
+def get_prompt_mappings(
+    mapping_type: str = Query(None, description="按映射类型筛选"),
+    db: Session = Depends(get_db),
+    admin: User = Depends(get_admin_user)
+):
+    """获取提示词映射列表"""
+    query = db.query(PromptMapping)
+    if mapping_type:
+        query = query.filter(PromptMapping.mapping_type == mapping_type)
+    mappings = query.order_by(PromptMapping.mapping_type, PromptMapping.sort_order).all()
+    return [PromptMappingItem.model_validate(m) for m in mappings]
+
+
+@router.get("/prompt-mappings/types")
+def get_mapping_types(
+    db: Session = Depends(get_db),
+    admin: User = Depends(get_admin_user)
+):
+    """获取所有映射类型及其数量"""
+    from sqlalchemy import distinct
+    types = db.query(
+        PromptMapping.mapping_type,
+        func.count(PromptMapping.id)
+    ).group_by(PromptMapping.mapping_type).all()
+    return [{"type": t, "count": c, "label": {
+        "category": "品类", "color": "颜色", "view": "视角",
+        "carving": "雕刻工艺", "style": "设计风格", "motif": "题材纹样",
+        "finish": "表面处理", "scene": "用途场景", "sub_type": "子类型"
+    }.get(t, t)} for t, c in types]
+
+
+@router.post("/prompt-mappings")
+def create_prompt_mapping(
+    data: PromptMappingCreate,
+    db: Session = Depends(get_db),
+    admin: User = Depends(get_admin_user)
+):
+    """创建提示词映射"""
+    # 检查重复
+    existing = db.query(PromptMapping).filter(
+        PromptMapping.mapping_type == data.mapping_type,
+        PromptMapping.cn_key == data.cn_key
+    ).first()
+    if existing:
+        raise HTTPException(status_code=400, detail=f"映射 '{data.cn_key}' 已存在")
+    mapping = PromptMapping(
+        mapping_type=data.mapping_type,
+        cn_key=data.cn_key,
+        en_value=data.en_value,
+        sort_order=data.sort_order
+    )
+    db.add(mapping)
+    db.commit()
+    db.refresh(mapping)
+    return {"id": mapping.id, "message": "映射创建成功"}
+
+
+@router.put("/prompt-mappings/{mapping_id}")
+def update_prompt_mapping(
+    mapping_id: int,
+    data: PromptMappingUpdate,
+    db: Session = Depends(get_db),
+    admin: User = Depends(get_admin_user)
+):
+    """更新提示词映射"""
+    mapping = db.query(PromptMapping).filter(PromptMapping.id == mapping_id).first()
+    if not mapping:
+        raise HTTPException(status_code=404, detail="映射不存在")
+    for field, value in data.model_dump(exclude_unset=True).items():
+        setattr(mapping, field, value)
+    db.commit()
+    return {"message": "映射更新成功"}
+
+
+@router.delete("/prompt-mappings/{mapping_id}")
+def delete_prompt_mapping(
+    mapping_id: int,
+    db: Session = Depends(get_db),
+    admin: User = Depends(get_admin_user)
+):
+    """删除提示词映射"""
+    mapping = db.query(PromptMapping).filter(PromptMapping.id == mapping_id).first()
+    if not mapping:
+        raise HTTPException(status_code=404, detail="映射不存在")
+    db.delete(mapping)
+    db.commit()
+    return {"message": "映射已删除"}
+
+
+@router.post("/prompt-preview")
+def preview_prompt(
+    params: dict,
+    db: Session = Depends(get_db),
+    admin: User = Depends(get_admin_user)
+):
+    """预览提示词生成结果"""
+    from ..services.prompt_builder import build_prompt
+    try:
+        prompt = build_prompt(
+            category_name=params.get("category_name", "牌子"),
+            view_name=params.get("view_name", "效果图"),
+            sub_type_name=params.get("sub_type_name"),
+            color_name=params.get("color_name"),
+            user_prompt=params.get("user_prompt"),
+            carving_technique=params.get("carving_technique"),
+            design_style=params.get("design_style"),
+            motif=params.get("motif"),
+            size_spec=params.get("size_spec"),
+            surface_finish=params.get("surface_finish"),
+            usage_scene=params.get("usage_scene"),
+        )
+        return {"prompt": prompt}
+    except Exception as e:
+        raise HTTPException(status_code=400, detail=f"提示词生成失败: {str(e)}")
--- a/backend/app/routers/designs.py
+++ b/backend/app/routers/designs.py
@@ -9,7 +9,7 @@ from sqlalchemy.orm import Session

 from ..database import get_db
 from ..models import User, Design
-from ..schemas import DesignCreate, DesignResponse, DesignListResponse
+from ..schemas import DesignCreate, DesignResponse, DesignListResponse, DesignImageResponse
 from ..utils.deps import get_current_user
 from ..services import design_service

@@ -18,6 +18,21 @@ router = APIRouter(prefix="/api/designs", tags=["设计"])

 def design_to_response(design: Design) -> DesignResponse:
    """将 Design 模型转换为响应格式"""
+    # 构建多视角图片列表
+    images = []
+    if hasattr(design, 'images') and design.images:
+        images = [
+            DesignImageResponse(
+                id=img.id,
+                view_name=img.view_name,
+                image_url=img.image_url,
+                model_used=img.model_used,
+                prompt_used=img.prompt_used,
+                sort_order=img.sort_order,
+            )
+            for img in design.images
+        ]
+
    return DesignResponse(
        id=design.id,
        user_id=design.user_id,
@@ -51,6 +66,7 @@ def design_to_response(design: Design) -> DesignResponse:
        surface_finish=design.surface_finish,
        usage_scene=design.usage_scene,
        image_url=design.image_url,
+        images=images,
        status=design.status,
        created_at=design.created_at,
        updated_at=design.updated_at
@@ -58,17 +74,17 @@ def design_to_response(design: Design) -> DesignResponse:


@router.post("/generate", response_model=DesignResponse)
-def generate_design(
+async def generate_design(
    design_data: DesignCreate,
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_user)
 ):
    """
-    提交设计生成请求
+    提交设计生成请求（异步，支持 AI 多视角生图）
    需要认证
    """
    try:
-        design = design_service.create_design(
+        design = await design_service.create_design_async(
            db=db,
            user_id=current_user.id,
            design_data=design_data
--- a/backend/app/schemas/init.py
+++ b/backend/app/schemas/init.py
@@ -4,7 +4,7 @@ Pydantic Schemas
 """
 from .user import UserCreate, UserLogin, UserResponse, Token, UserUpdate, PasswordChange
 from .category import CategoryResponse, SubTypeResponse, ColorResponse
-from .design import DesignCreate, DesignResponse, DesignListResponse
+from .design import DesignCreate, DesignResponse, DesignListResponse, DesignImageResponse

 __all__ = [
    # User schemas
@@ -22,4 +22,5 @@ __all__ = [
    "DesignCreate",
    "DesignResponse",
    "DesignListResponse",
+    "DesignImageResponse",
 ]
--- a/backend/app/schemas/admin.py
+++ b/backend/app/schemas/admin.py
@@ -0,0 +1,173 @@
+"""
+管理后台相关 Pydantic Schemas
+"""
+from pydantic import BaseModel, Field
+from datetime import datetime
+from typing import Optional, List
+
+
+# ============ 系统配置 ============
+class SystemConfigItem(BaseModel):
+    """单个配置项"""
+    config_key: str
+    config_value: Optional[str] = None
+    description: Optional[str] = None
+    config_group: str = "general"
+    is_secret: str = "N"
+    updated_at: Optional[datetime] = None
+
+    class Config:
+        from_attributes = True
+
+
+class SystemConfigUpdate(BaseModel):
+    """批量更新配置"""
+    configs: dict = Field(..., description="键值对: {config_key: config_value}")
+
+
+class SystemConfigResponse(BaseModel):
+    """配置列表响应"""
+    items: List[SystemConfigItem]
+
+
+# ============ 用户管理 ============
+class AdminUserResponse(BaseModel):
+    """管理端用户信息"""
+    id: int
+    username: str
+    nickname: Optional[str] = None
+    phone: Optional[str] = None
+    is_admin: bool = False
+    created_at: datetime
+    design_count: int = 0
+
+    class Config:
+        from_attributes = True
+
+
+class AdminUserListResponse(BaseModel):
+    """用户列表响应"""
+    items: List[AdminUserResponse]
+    total: int
+    page: int
+    page_size: int
+
+
+class AdminSetAdmin(BaseModel):
+    """设置管理员"""
+    is_admin: bool
+
+
+# ============ 品类管理 ============
+class CategoryCreate(BaseModel):
+    """创建品类"""
+    name: str = Field(..., max_length=50)
+    icon: Optional[str] = Field(None, max_length=255)
+    sort_order: int = 0
+    flow_type: str = Field("full", max_length=20)
+
+
+class CategoryUpdate(BaseModel):
+    """更新品类"""
+    name: Optional[str] = Field(None, max_length=50)
+    icon: Optional[str] = Field(None, max_length=255)
+    sort_order: Optional[int] = None
+    flow_type: Optional[str] = Field(None, max_length=20)
+
+
+class SubTypeCreate(BaseModel):
+    """创建子类型"""
+    category_id: int
+    name: str = Field(..., max_length=50)
+    description: Optional[str] = Field(None, max_length=255)
+    preview_image: Optional[str] = Field(None, max_length=255)
+    sort_order: int = 0
+
+
+class SubTypeUpdate(BaseModel):
+    """更新子类型"""
+    name: Optional[str] = Field(None, max_length=50)
+    description: Optional[str] = Field(None, max_length=255)
+    preview_image: Optional[str] = Field(None, max_length=255)
+    sort_order: Optional[int] = None
+
+
+class ColorCreate(BaseModel):
+    """创建颜色"""
+    category_id: int
+    name: str = Field(..., max_length=50)
+    hex_code: Optional[str] = Field(None, max_length=10)
+    sort_order: int = 0
+
+
+class ColorUpdate(BaseModel):
+    """更新颜色"""
+    name: Optional[str] = Field(None, max_length=50)
+    hex_code: Optional[str] = Field(None, max_length=10)
+    sort_order: Optional[int] = None
+
+
+# ============ 设计管理 ============
+class AdminDesignListResponse(BaseModel):
+    """管理端设计列表"""
+    items: list
+    total: int
+    page: int
+    page_size: int
+
+
+# ============ 提示词管理 ============
+class PromptTemplateItem(BaseModel):
+    """提示词模板"""
+    id: Optional[int] = None
+    template_key: str
+    template_value: str
+    description: Optional[str] = None
+    updated_at: Optional[datetime] = None
+
+    class Config:
+        from_attributes = True
+
+
+class PromptTemplateUpdate(BaseModel):
+    """更新提示词模板"""
+    template_value: str
+    description: Optional[str] = None
+
+
+class PromptMappingItem(BaseModel):
+    """提示词映射"""
+    id: Optional[int] = None
+    mapping_type: str
+    cn_key: str
+    en_value: str
+    sort_order: int = 0
+    updated_at: Optional[datetime] = None
+
+    class Config:
+        from_attributes = True
+
+
+class PromptMappingCreate(BaseModel):
+    """创建提示词映射"""
+    mapping_type: str
+    cn_key: str
+    en_value: str
+    sort_order: int = 0
+
+
+class PromptMappingUpdate(BaseModel):
+    """更新提示词映射"""
+    cn_key: Optional[str] = None
+    en_value: Optional[str] = None
+    sort_order: Optional[int] = None
+
+
+# ============ 仪表盘 ============
+class DashboardStats(BaseModel):
+    """仪表盘统计"""
+    total_users: int
+    total_designs: int
+    total_categories: int
+    today_designs: int
+    today_users: int
--- a/backend/app/schemas/design.py
+++ b/backend/app/schemas/design.py
@@ -8,6 +8,20 @@ from typing import Optional, List
 from .category import CategoryResponse, SubTypeResponse, ColorResponse


+class DesignImageResponse(BaseModel):
+    """设计图片响应（单张视角图）"""
+    id: int
+    view_name: str
+    image_url: Optional[str] = None
+    model_used: Optional[str] = None
+    prompt_used: Optional[str] = None
+    sort_order: int = 0
+
+    class Config:
+        from_attributes = True
+        protected_namespaces = ()
+
+
 class DesignCreate(BaseModel):
    """创建设计请求"""
    category_id: int = Field(..., description="品类ID")
@@ -37,6 +51,7 @@ class DesignResponse(BaseModel):
    surface_finish: Optional[str] = None
    usage_scene: Optional[str] = None
    image_url: Optional[str] = None
+    images: List[DesignImageResponse] = []
    status: str
    created_at: datetime
    updated_at: datetime
--- a/backend/app/schemas/user.py
+++ b/backend/app/schemas/user.py
@@ -26,6 +26,7 @@ class UserResponse(BaseModel):
    nickname: Optional[str] = None
    phone: Optional[str] = None
    avatar: Optional[str] = None
+    is_admin: bool = False
    created_at: datetime

    class Config:
--- a/backend/app/services/ai_generator.py
+++ b/backend/app/services/ai_generator.py
@@ -0,0 +1,144 @@
+"""
+AI 生图服务
+支持双模型：SiliconFlow FLUX.1 [dev] 和 火山引擎 Seedream 4.5
+"""
+import os
+import uuid
+import logging
+import httpx
+from typing import Optional
+
+from ..config import settings
+from .config_service import get_ai_config
+
+logger = logging.getLogger(__name__)
+
+# 超时设置（秒）
+REQUEST_TIMEOUT = 90
+# 最大重试次数
+MAX_RETRIES = 3
+
+
+async def _call_siliconflow(prompt: str, size: int = 1024, ai_config: dict = None) -> str:
+    """
+    调用 SiliconFlow FLUX.1 [dev] 生图 API
+    
+    Returns:
+        远程图片 URL
+    """
+    cfg = ai_config or get_ai_config()
+    url = f"{cfg['SILICONFLOW_BASE_URL']}/images/generations"
+    headers = {
+        "Authorization": f"Bearer {cfg['SILICONFLOW_API_KEY']}",
+        "Content-Type": "application/json",
+    }
+    payload = {
+        "model": "black-forest-labs/FLUX.1-dev",
+        "prompt": prompt,
+        "image_size": f"{size}x{size}",
+        "num_inference_steps": 20,
+    }
+
+    async with httpx.AsyncClient(timeout=REQUEST_TIMEOUT) as client:
+        resp = await client.post(url, json=payload, headers=headers)
+        resp.raise_for_status()
+        data = resp.json()
+
+    # SiliconFlow 响应格式: {"images": [{"url": "https://..."}]}
+    images = data.get("images", [])
+    if not images:
+        raise ValueError("SiliconFlow 返回空图片列表")
+    return images[0]["url"]
+
+
+async def _call_seedream(prompt: str, size: int = 1024, ai_config: dict = None) -> str:
+    """
+    调用火山引擎 Seedream 4.5 生图 API
+    
+    Returns:
+        远程图片 URL
+    """
+    cfg = ai_config or get_ai_config()
+    url = f"{cfg['VOLCENGINE_BASE_URL']}/images/generations"
+    headers = {
+        "Authorization": f"Bearer {cfg['VOLCENGINE_API_KEY']}",
+        "Content-Type": "application/json",
+    }
+    payload = {
+        "model": "doubao-seedream-4.5-t2i-250528",
+        "prompt": prompt,
+        "size": f"{size}x{size}",
+        "response_format": "url",
+    }
+
+    async with httpx.AsyncClient(timeout=REQUEST_TIMEOUT) as client:
+        resp = await client.post(url, json=payload, headers=headers)
+        resp.raise_for_status()
+        data = resp.json()
+
+    # Seedream 响应格式: {"data": [{"url": "https://..."}]}
+    items = data.get("data", [])
+    if not items:
+        raise ValueError("Seedream 返回空图片列表")
+    return items[0]["url"]
+
+
+async def generate_image(prompt: str, model: Optional[str] = None) -> str:
+    """
+    统一生图接口，带重试机制
+    
+    Args:
+        prompt: 英文提示词
+        model: 模型名称 (flux-dev / seedream-4.5)，为空则使用配置默认值
+        
+    Returns:
+        远程图片 URL
+        
+    Raises:
+        Exception: 所有重试失败后抛出
+    """
+    ai_config = get_ai_config()
+    model = model or ai_config.get("AI_IMAGE_MODEL", "flux-dev")
+    size = ai_config.get("AI_IMAGE_SIZE", 1024)
+
+    last_error: Optional[Exception] = None
+    for attempt in range(1, MAX_RETRIES + 1):
+        try:
+            if model == "seedream-4.5":
+                image_url = await _call_seedream(prompt, size, ai_config)
+            else:
+                image_url = await _call_siliconflow(prompt, size, ai_config)
+            logger.info(f"AI 生图成功 (model={model}, attempt={attempt})")
+            return image_url
+        except Exception as e:
+            last_error = e
+            logger.warning(f"AI 生图失败 (model={model}, attempt={attempt}/{MAX_RETRIES}): {e}")
+            if attempt < MAX_RETRIES:
+                import asyncio
+                await asyncio.sleep(2 * attempt)  # 指数退避
+
+    raise RuntimeError(f"AI 生图在 {MAX_RETRIES} 次重试后仍然失败: {last_error}")
+
+
+async def download_and_save(image_url: str, save_path: str) -> str:
+    """
+    下载远程图片并保存到本地
+    
+    Args:
+        image_url: 远程图片 URL
+        save_path: 本地保存路径（如 uploads/designs/1001_效果图.png）
+        
+    Returns:
+        本地文件相对路径（以 / 开头，如 /uploads/designs/1001_效果图.png）
+    """
+    # 确保目录存在
+    os.makedirs(os.path.dirname(save_path), exist_ok=True)
+
+    async with httpx.AsyncClient(timeout=60, follow_redirects=True) as client:
+        resp = await client.get(image_url)
+        resp.raise_for_status()
+        with open(save_path, "wb") as f:
+            f.write(resp.content)
+
+    logger.info(f"图片已下载保存: {save_path}")
+    return f"/{save_path}"
--- a/backend/app/services/config_service.py
+++ b/backend/app/services/config_service.py
@@ -0,0 +1,58 @@
+"""
+配置服务
+优先从数据库 system_configs 表读取配置，数据库无值时回退到 .env
+"""
+import logging
+from typing import Optional
+from sqlalchemy.orm import Session
+
+from ..database import SessionLocal
+from ..models.system_config import SystemConfig
+from ..config import settings as env_settings
+
+logger = logging.getLogger(__name__)
+
+
+def get_config_value(key: str, default: Optional[str] = None) -> Optional[str]:
+    """
+    获取配置值（数据库优先，.env 兜底）
+    
+    Args:
+        key: 配置键名（如 SILICONFLOW_API_KEY）
+        default: 默认值
+    Returns:
+        配置值字符串
+    """
+    # 1. 尝试从数据库读取
+    try:
+        db = SessionLocal()
+        try:
+            config = db.query(SystemConfig).filter(SystemConfig.config_key == key).first()
+            if config and config.config_value:
+                return config.config_value
+        finally:
+            db.close()
+    except Exception as e:
+        logger.warning(f"从数据库读取配置 {key} 失败: {e}")
+    
+    # 2. 回退到 .env / Settings
+    env_value = getattr(env_settings, key, None)
+    if env_value is not None and env_value != "":
+        return str(env_value)
+    
+    return default
+
+
+def get_ai_config() -> dict:
+    """
+    获取所有 AI 相关配置
+    返回字典，方便 ai_generator 使用
+    """
+    return {
+        "SILICONFLOW_API_KEY": get_config_value("SILICONFLOW_API_KEY", ""),
+        "SILICONFLOW_BASE_URL": get_config_value("SILICONFLOW_BASE_URL", "https://api.siliconflow.cn/v1"),
+        "VOLCENGINE_API_KEY": get_config_value("VOLCENGINE_API_KEY", ""),
+        "VOLCENGINE_BASE_URL": get_config_value("VOLCENGINE_BASE_URL", "https://ark.cn-beijing.volces.com/api/v3"),
+        "AI_IMAGE_MODEL": get_config_value("AI_IMAGE_MODEL", "flux-dev"),
+        "AI_IMAGE_SIZE": int(get_config_value("AI_IMAGE_SIZE", "1024")),
+    }
--- a/backend/app/services/design_service.py
+++ b/backend/app/services/design_service.py
@@ -1,40 +1,56 @@
 """
 设计服务
-处理设计相关的业务逻辑
+处理设计相关的业务逻辑，支持 AI 多视角生图 + mock 降级
 """
 import os
+import logging
 from typing import List, Optional, Tuple
 from sqlalchemy.orm import Session
 from sqlalchemy import desc

-from ..models import Design, Category, SubType, Color
+from ..models import Design, DesignImage, Category, SubType, Color
 from ..schemas import DesignCreate
 from ..config import settings
 from .mock_generator import generate_mock_design
+from .prompt_builder import get_views_for_category, build_prompt
+from . import ai_generator
+
+logger = logging.getLogger(__name__)


-def create_design(db: Session, user_id: int, design_data: DesignCreate) -> Design:
+def _has_ai_key() -> bool:
+    """检查是否配置了 AI API Key"""
+    model = settings.AI_IMAGE_MODEL
+    if model == "seedream-4.5":
+        return bool(settings.VOLCENGINE_API_KEY)
+    return bool(settings.SILICONFLOW_API_KEY)
+
+
+async def create_design_async(db: Session, user_id: int, design_data: DesignCreate) -> Design:
    """
-    创建设计记录
-    
-    1. 创建设计记录（status=generating）
-    2. 调用 mock_generator 生成图片
-    3. 更新设计记录（status=completed, image_url）
-    4. 返回设计对象
+    创建设计记录（异步版本，支持 AI 多视角生图）
+
+    流程：
+    1. 创建 Design 记录（status=generating）
+    2. 获取品类视角列表
+    3. 循环每个视角：构建 prompt → 调用 AI 生图 → 下载保存 → 创建 DesignImage
+    4. 第一张效果图 URL 存入 design.image_url（兼容旧逻辑）
+    5. 更新 status=completed
+    6. 失败时降级到 mock_generator
    """
    # 获取关联信息
    category = db.query(Category).filter(Category.id == design_data.category_id).first()
    if not category:
        raise ValueError(f"品类不存在: {design_data.category_id}")
-    
+
    sub_type = None
    if design_data.sub_type_id:
        sub_type = db.query(SubType).filter(SubType.id == design_data.sub_type_id).first()
-    
+
    color = None
    if design_data.color_id:
        color = db.query(Color).filter(Color.id == design_data.color_id).first()
-    
+
    # 创建设计记录
    design = Design(
        user_id=user_id,
@@ -52,8 +68,109 @@ def create_design(db: Session, user_id: int, design_data: DesignCreate) -> Desig
    )
    db.add(design)
    db.flush()  # 获取 ID
-    
-    # 生成图片
+
+    # 尝试 AI 生图
+    if _has_ai_key():
+        try:
+            await _generate_ai_images(db, design, category, sub_type, color, design_data)
+            db.commit()
+            db.refresh(design)
+            return design
+        except Exception as e:
+            logger.error(f"AI 生图全部失败，降级到 mock: {e}")
+            db.rollback()
+            # 重新查询，因为 rollback 后 ORM 对象可能失效
+            design = db.query(Design).filter(Design.id == design.id).first()
+            if not design:
+                # rollback 导致 design 也没了，重新创建
+                design = Design(
+                    user_id=user_id,
+                    category_id=design_data.category_id,
+                    sub_type_id=design_data.sub_type_id,
+                    color_id=design_data.color_id,
+                    prompt=design_data.prompt,
+                    carving_technique=design_data.carving_technique,
+                    design_style=design_data.design_style,
+                    motif=design_data.motif,
+                    size_spec=design_data.size_spec,
+                    surface_finish=design_data.surface_finish,
+                    usage_scene=design_data.usage_scene,
+                    status="generating"
+                )
+                db.add(design)
+                db.flush()
+
+    # 降级到 mock 生成
+    _generate_mock_fallback(db, design, category, sub_type, color, design_data)
+    db.commit()
+    db.refresh(design)
+    return design
+
+
+async def _generate_ai_images(
+    db: Session,
+    design: Design,
+    category,
+    sub_type,
+    color,
+    design_data: DesignCreate,
+) -> None:
+    """使用 AI 模型为每个视角生成图片"""
+    views = get_views_for_category(category.name)
+    model = settings.AI_IMAGE_MODEL
+
+    for idx, view_name in enumerate(views):
+        # 构建 prompt
+        prompt_text = build_prompt(
+            category_name=category.name,
+            view_name=view_name,
+            sub_type_name=sub_type.name if sub_type else None,
+            color_name=color.name if color else None,
+            user_prompt=design_data.prompt,
+            carving_technique=design_data.carving_technique,
+            design_style=design_data.design_style,
+            motif=design_data.motif,
+            size_spec=design_data.size_spec,
+            surface_finish=design_data.surface_finish,
+            usage_scene=design_data.usage_scene,
+        )
+
+        # 调用 AI 生图
+        remote_url = await ai_generator.generate_image(prompt_text, model)
+
+        # 下载保存到本地
+        save_path = os.path.join(
+            settings.UPLOAD_DIR, "designs", f"{design.id}_{view_name}.png"
+        )
+        local_url = await ai_generator.download_and_save(remote_url, save_path)
+
+        # 创建 DesignImage 记录
+        design_image = DesignImage(
+            design_id=design.id,
+            view_name=view_name,
+            image_url=local_url,
+            model_used=model,
+            prompt_used=prompt_text,
+            sort_order=idx,
+        )
+        db.add(design_image)
+
+        # 第一张图（效果图）存入 design.image_url 兼容旧逻辑
+        if idx == 0:
+            design.image_url = local_url
+
+    design.status = "completed"
+
+
+def _generate_mock_fallback(
+    db: Session,
+    design: Design,
+    category,
+    sub_type,
+    color,
+    design_data: DesignCreate,
+) -> None:
+    """降级使用 mock 生成器"""
    save_path = os.path.join(settings.UPLOAD_DIR, "designs", f"{design.id}.png")
    image_url = generate_mock_design(
        category_name=category.name,
@@ -68,13 +185,47 @@ def create_design(db: Session, user_id: int, design_data: DesignCreate) -> Desig
        surface_finish=design_data.surface_finish,
        usage_scene=design_data.usage_scene,
    )
-    
-    # 更新设计记录
    design.image_url = image_url
    design.status = "completed"
+    logger.info(f"Mock 降级生成完成: design_id={design.id}")
+
+
+def create_design(db: Session, user_id: int, design_data: DesignCreate) -> Design:
+    """
+    同步版本创建设计（兼容旧调用，仅用 mock）
+    """
+    category = db.query(Category).filter(Category.id == design_data.category_id).first()
+    if not category:
+        raise ValueError(f"品类不存在: {design_data.category_id}")
+
+    sub_type = None
+    if design_data.sub_type_id:
+        sub_type = db.query(SubType).filter(SubType.id == design_data.sub_type_id).first()
+
+    color = None
+    if design_data.color_id:
+        color = db.query(Color).filter(Color.id == design_data.color_id).first()
+
+    design = Design(
+        user_id=user_id,
+        category_id=design_data.category_id,
+        sub_type_id=design_data.sub_type_id,
+        color_id=design_data.color_id,
+        prompt=design_data.prompt,
+        carving_technique=design_data.carving_technique,
+        design_style=design_data.design_style,
+        motif=design_data.motif,
+        size_spec=design_data.size_spec,
+        surface_finish=design_data.surface_finish,
+        usage_scene=design_data.usage_scene,
+        status="generating"
+    )
+    db.add(design)
+    db.flush()
+
+    _generate_mock_fallback(db, design, category, sub_type, color, design_data)
    db.commit()
    db.refresh(design)
-    
    return design


@@ -132,16 +283,24 @@ def delete_design(db: Session, design_id: int, user_id: int) -> bool:
    if not design:
        return False
    
-    # 删除图片文件
+    # 删除主图片文件
    if design.image_url:
-        # image_url 格式: /uploads/designs/1001.png
-        # 转换为实际文件路径
        file_path = design.image_url.lstrip("/")
        if os.path.exists(file_path):
            try:
                os.remove(file_path)
            except Exception:
-                pass  # 忽略删除失败
+                pass
+
+    # 删除多视角图片文件
+    for img in design.images:
+        if img.image_url:
+            fp = img.image_url.lstrip("/")
+            if os.path.exists(fp):
+                try:
+                    os.remove(fp)
+                except Exception:
+                    pass
    
    # 删除数据库记录
    db.delete(design)
--- a/backend/app/services/prompt_builder.py
+++ b/backend/app/services/prompt_builder.py
@@ -0,0 +1,164 @@
+"""
+专业玉雕设计提示词构建器（数据库版）
+从数据库 prompt_templates + prompt_mappings 读取配置，支持后台热更新
+"""
+import logging
+from typing import Optional, Dict, List
+
+from ..database import SessionLocal
+from ..models.prompt_template import PromptTemplate, PromptMapping
+
+logger = logging.getLogger(__name__)
+
+# ============================================================
+# 品类视角配置（保留硬编码，因为与业务流程强关联）
+# ============================================================
+CATEGORY_VIEWS: Dict[str, List[str]] = {
+    "牌子": ["效果图", "正面图", "背面图"],
+    "珠子": ["效果图", "正面图"],
+    "手把件": ["效果图", "正面图", "侧面图", "背面图"],
+    "雕刻件": ["效果图", "正面图", "侧面图", "背面图"],
+    "摆件": ["效果图", "正面图", "侧面图", "背面图"],
+    "手镯": ["效果图", "正面图", "侧面图"],
+    "耳钉": ["效果图", "正面图"],
+    "耳饰": ["效果图", "正面图"],
+    "手链": ["效果图", "正面图"],
+    "项链": ["效果图", "正面图"],
+    "戒指": ["效果图", "正面图", "侧面图"],
+    "表带": ["效果图", "正面图"],
+}
+
+
+def _load_mappings(mapping_type: str) -> Dict[str, str]:
+    """从数据库加载指定类型的映射字典"""
+    try:
+        db = SessionLocal()
+        try:
+            rows = db.query(PromptMapping).filter(
+                PromptMapping.mapping_type == mapping_type
+            ).order_by(PromptMapping.sort_order).all()
+            return {r.cn_key: r.en_value for r in rows}
+        finally:
+            db.close()
+    except Exception as e:
+        logger.warning(f"加载映射 {mapping_type} 失败: {e}")
+        return {}
+
+
+def _load_template(template_key: str, default: str = "") -> str:
+    """从数据库加载模板"""
+    try:
+        db = SessionLocal()
+        try:
+            tpl = db.query(PromptTemplate).filter(
+                PromptTemplate.template_key == template_key
+            ).first()
+            if tpl:
+                return tpl.template_value
+        finally:
+            db.close()
+    except Exception as e:
+        logger.warning(f"加载模板 {template_key} 失败: {e}")
+    return default
+
+
+def get_views_for_category(category_name: str) -> List[str]:
+    """获取品类对应的视角列表"""
+    return CATEGORY_VIEWS.get(category_name, ["效果图", "正面图"])
+
+
+def build_prompt(
+    category_name: str,
+    view_name: str,
+    sub_type_name: Optional[str] = None,
+    color_name: Optional[str] = None,
+    user_prompt: Optional[str] = None,
+    carving_technique: Optional[str] = None,
+    design_style: Optional[str] = None,
+    motif: Optional[str] = None,
+    size_spec: Optional[str] = None,
+    surface_finish: Optional[str] = None,
+    usage_scene: Optional[str] = None,
+) -> str:
+    """
+    构建专业英文生图提示词（从数据库读取映射和模板）
+
+    业务逻辑：用户参数 → 中英映射 → 填入模板 → 最终prompt
+    """
+    # 从数据库加载所有映射
+    category_map = _load_mappings("category")
+    color_map = _load_mappings("color")
+    view_map = _load_mappings("view")
+    carving_map = _load_mappings("carving")
+    style_map = _load_mappings("style")
+    motif_map = _load_mappings("motif")
+    finish_map = _load_mappings("finish")
+    scene_map = _load_mappings("scene")
+    sub_type_map = _load_mappings("sub_type")
+
+    # 加载模板
+    quality_suffix = _load_template("quality_suffix",
+        "professional jewelry product photography, studio lighting setup, pure white background, ultra-detailed, sharp focus, 8K resolution, photorealistic rendering, high-end commercial quality")
+    default_color = _load_template("default_color",
+        "natural Hetian nephrite jade with warm luster")
+
+    # 构建各部分
+    parts = []
+
+    # 1. 品类主体
+    subject = category_map.get(category_name, f"Chinese Hetian nephrite jade {category_name}")
+    parts.append(subject)
+
+    # 2. 子类型
+    if sub_type_name:
+        sub_detail = sub_type_map.get(sub_type_name, sub_type_name)
+        parts.append(sub_detail)
+
+    # 3. 颜色
+    if color_name:
+        color_desc = color_map.get(color_name, f"{color_name} colored nephrite jade")
+        parts.append(color_desc)
+    else:
+        parts.append(default_color)
+
+    # 4. 题材纹样
+    if motif:
+        motif_desc = motif_map.get(motif, f"{motif} themed design")
+        parts.append(f"featuring {motif_desc}")
+
+    # 5. 雕刻工艺
+    if carving_technique:
+        tech_desc = carving_map.get(carving_technique, carving_technique)
+        parts.append(tech_desc)
+
+    # 6. 设计风格
+    if design_style:
+        style_desc = style_map.get(design_style, design_style)
+        parts.append(style_desc)
+
+    # 7. 表面处理
+    if surface_finish:
+        finish_desc = finish_map.get(surface_finish, surface_finish)
+        parts.append(finish_desc)
+
+    # 8. 用途场景
+    if usage_scene:
+        scene_desc = scene_map.get(usage_scene, usage_scene)
+        parts.append(scene_desc)
+
+    # 9. 尺寸
+    if size_spec:
+        parts.append(f"size approximately {size_spec}")
+
+    # 10. 用户描述
+    if user_prompt:
+        parts.append(f"design concept: {user_prompt}")
+
+    # 11. 视角
+    view_desc = view_map.get(view_name, "three-quarter view")
+    parts.append(view_desc)
+
+    # 12. 质量后缀
+    parts.append(quality_suffix)
+
+    return ", ".join(parts)
--- a/backend/app/utils/deps.py
+++ b/backend/app/utils/deps.py
@@ -56,3 +56,19 @@ def get_current_user(
        raise credentials_exception
    
    return user
+
+
+def get_admin_user(
+    current_user: User = Depends(get_current_user)
+) -> User:
+    """
+    获取当前管理员用户
+    
+    验证当前用户是否为管理员，非管理员抛出 403
+    """
+    if not current_user.is_admin:
+        raise HTTPException(
+            status_code=status.HTTP_403_FORBIDDEN,
+            detail="权限不足，需要管理员权限"
+        )
+    return current_user
--- a/backend/init_prompt_data.py
+++ b/backend/init_prompt_data.py
@@ -0,0 +1,203 @@
+"""
+初始化默认提示词模板和映射数据
+将 prompt_builder.py 中硬编码的数据迁移到数据库
+"""
+import pymysql
+
+conn = pymysql.connect(host='localhost', port=13306, user='yssjs', password='yssjs', database='yuzong', charset='utf8mb4')
+cursor = conn.cursor()
+
+# ===== 1. 提示词模板 =====
+templates = [
+    ("main_template",
+     "{subject}, {sub_type}, {color}, {motif}, {carving}, {style}, {finish}, {scene}, {size}, {user_prompt}, {view}, {quality}",
+     "主提示词模板 - 用变量拼接最终prompt。可用变量: {subject}品类主体, {sub_type}子类型, {color}颜色, {motif}题材, {carving}工艺, {style}风格, {finish}表面处理, {scene}用途, {size}尺寸, {user_prompt}用户描述, {view}视角, {quality}质量后缀"),
+    ("quality_suffix",
+     "professional jewelry product photography, studio lighting setup, pure white background, ultra-detailed, sharp focus, 8K resolution, photorealistic rendering, high-end commercial quality",
+     "质量后缀标签 - 附加在prompt末尾的通用质量描述"),
+    ("default_color",
+     "natural Hetian nephrite jade with warm luster",
+     "未选择颜色时的默认颜色描述"),
+]
+for key, val, desc in templates:
+    cursor.execute(
+        "INSERT IGNORE INTO prompt_templates (template_key, template_value, description) VALUES (%s, %s, %s)",
+        (key, val, desc))
+print(f"✅ 插入 {len(templates)} 个提示词模板")
+
+# ===== 2. 品类映射 (category) =====
+categories = [
+    ("牌子", "Chinese Hetian nephrite jade pendant plaque, rectangular tablet shape"),
+    ("珠子", "Chinese Hetian nephrite jade bead, perfectly round sphere"),
+    ("手把件", "Chinese Hetian nephrite jade hand piece (palm stone), ergonomic carved ornament for hand play"),
+    ("雕刻件", "Chinese Hetian nephrite jade carving, intricate sculptural artwork"),
+    ("摆件", "Chinese Hetian nephrite jade display sculpture, decorative art piece on wooden stand"),
+    ("手镯", "Chinese Hetian nephrite jade bangle bracelet, smooth circular form"),
+    ("耳钉", "Chinese Hetian nephrite jade stud earring, delicate small jewelry piece"),
+    ("耳饰", "Chinese Hetian nephrite jade drop earring, elegant dangling jewelry"),
+    ("手链", "Chinese Hetian nephrite jade bead bracelet, string of polished beads"),
+    ("项链", "Chinese Hetian nephrite jade necklace, elegant pendant on chain"),
+    ("戒指", "Chinese Hetian nephrite jade ring, polished jade mounted on band"),
+    ("表带", "Chinese Hetian nephrite jade watch strap, segmented jade links"),
+]
+for i, (cn, en) in enumerate(categories):
+    cursor.execute(
+        "INSERT IGNORE INTO prompt_mappings (mapping_type, cn_key, en_value, sort_order) VALUES (%s, %s, %s, %s)",
+        ("category", cn, en, i))
+print(f"✅ 插入 {len(categories)} 个品类映射")
+
+# ===== 3. 颜色映射 (color) =====
+colors = [
+    ("白玉", "pure white nephrite jade, milky translucent, warm ivory tone"),
+    ("青白玉", "celadon-white nephrite jade, pale greenish-white, subtle cool tone"),
+    ("青玉", "celadon nephrite jade, muted sage green, natural earthy green"),
+    ("碧玉", "deep green jasper nephrite jade, rich forest green, vivid saturated"),
+    ("翠青", "emerald-tinted nephrite jade, fresh spring green with blue undertone"),
+    ("黄玉", "golden yellow nephrite jade, warm honey amber, rich golden hue"),
+    ("糖玉", "sugar-brown nephrite jade, warm caramel brown with reddish tint"),
+    ("墨玉", "ink-black nephrite jade, deep charcoal black, mysterious dark"),
+    ("藕粉", "lotus-pink nephrite jade, soft blush pink, delicate pastel rose"),
+    ("烟紫", "smoky purple nephrite jade, muted lavender grey, subtle violet"),
+    ("糖白", "sugar-white nephrite jade, creamy white with light brown edges"),
+]
+for i, (cn, en) in enumerate(colors):
+    cursor.execute(
+        "INSERT IGNORE INTO prompt_mappings (mapping_type, cn_key, en_value, sort_order) VALUES (%s, %s, %s, %s)",
+        ("color", cn, en, i))
+print(f"✅ 插入 {len(colors)} 个颜色映射")
+
+# ===== 4. 视角映射 (view) =====
+views = [
+    ("效果图", "three-quarter view, 45-degree angle, hero shot, dramatic perspective showing depth and dimension"),
+    ("正面图", "front view, straight-on, flat lay centered, facing camera directly"),
+    ("侧面图", "side profile view, 90-degree lateral angle, showing thickness and contour"),
+    ("背面图", "back view, rear side, showing reverse surface and texture"),
+]
+for i, (cn, en) in enumerate(views):
+    cursor.execute(
+        "INSERT IGNORE INTO prompt_mappings (mapping_type, cn_key, en_value, sort_order) VALUES (%s, %s, %s, %s)",
+        ("view", cn, en, i))
+print(f"✅ 插入 {len(views)} 个视角映射")
+
+# ===== 5. 雕刻工艺映射 (carving) =====
+carvings = [
+    ("浮雕", "relief carving with raised design emerging from surface"),
+    ("圆雕", "full three-dimensional round carving, sculptural in the round"),
+    ("镂空雕", "openwork pierced carving, intricate hollow cutout patterns"),
+    ("阴刻", "intaglio engraving, incised lines carved into the surface"),
+    ("线雕", "fine line engraving, delicate linear incised pattern"),
+    ("俏色雕", "qiaose color-play carving utilizing natural jade skin color contrast"),
+    ("薄意雕", "shallow thin-relief carving, subtle and understated surface design"),
+    ("素面", "plain polished surface, smooth minimalist finish without carving"),
+]
+for i, (cn, en) in enumerate(carvings):
+    cursor.execute(
+        "INSERT IGNORE INTO prompt_mappings (mapping_type, cn_key, en_value, sort_order) VALUES (%s, %s, %s, %s)",
+        ("carving", cn, en, i))
+print(f"✅ 插入 {len(carvings)} 个雕刻工艺映射")
+
+# ===== 6. 设计风格映射 (style) =====
+styles = [
+    ("古典传统", "classical traditional Chinese style, antique aesthetic, heritage craftsmanship"),
+    ("新中式", "modern neo-Chinese style, contemporary Asian minimalism with traditional elements"),
+    ("写实", "realistic naturalistic style, lifelike detailed representation"),
+    ("抽象意境", "abstract artistic impression, fluid organic forms, poetic mood"),
+    ("极简素面", "ultra-minimalist clean design, sleek smooth surface, zen aesthetic"),
+]
+for i, (cn, en) in enumerate(styles):
+    cursor.execute(
+        "INSERT IGNORE INTO prompt_mappings (mapping_type, cn_key, en_value, sort_order) VALUES (%s, %s, %s, %s)",
+        ("style", cn, en, i))
+print(f"✅ 插入 {len(styles)} 个设计风格映射")
+
+# ===== 7. 题材纹样映射 (motif) =====
+motifs = [
+    ("观音", "Guanyin Bodhisattva figure, serene Buddhist deity of mercy"),
+    ("弥勒", "Maitreya laughing Buddha, jovial happy Buddha figure"),
+    ("莲花", "lotus flower motif, sacred Buddhist lotus blossom petals"),
+    ("貔貅", "Pixiu mythical beast, Chinese fortune guardian creature"),
+    ("龙凤", "dragon and phoenix motif, imperial auspicious dual creatures"),
+    ("麒麟", "Qilin mythical unicorn, auspicious Chinese legendary beast"),
+    ("山水", "Chinese mountain and water landscape, shanshui scenery"),
+    ("花鸟", "flower and bird motif, traditional Chinese nature painting theme"),
+    ("人物", "human figure motif, classical Chinese character portrayal"),
+    ("回纹", "Greek key fret pattern, Chinese meander geometric border"),
+    ("如意", "Ruyi scepter motif, auspicious cloud-head wish-granting symbol"),
+    ("平安扣", "Ping'an buckle motif, smooth circular safety and peace symbol"),
+]
+for i, (cn, en) in enumerate(motifs):
+    cursor.execute(
+        "INSERT IGNORE INTO prompt_mappings (mapping_type, cn_key, en_value, sort_order) VALUES (%s, %s, %s, %s)",
+        ("motif", cn, en, i))
+print(f"✅ 插入 {len(motifs)} 个题材纹样映射")
+
+# ===== 8. 表面处理映射 (finish) =====
+finishes = [
+    ("高光抛光", "high-gloss mirror polish, reflective glossy surface"),
+    ("亚光/哑光", "matte satin finish, soft non-reflective surface"),
+    ("磨砂", "frosted textured finish, fine granular surface"),
+    ("保留皮色", "natural jade skin preserved, raw russet-brown outer skin layer retained"),
+]
+for i, (cn, en) in enumerate(finishes):
+    cursor.execute(
+        "INSERT IGNORE INTO prompt_mappings (mapping_type, cn_key, en_value, sort_order) VALUES (%s, %s, %s, %s)",
+        ("finish", cn, en, i))
+print(f"✅ 插入 {len(finishes)} 个表面处理映射")
+
+# ===== 9. 用途场景映射 (scene) =====
+scenes = [
+    ("日常佩戴", "designed for daily wear, comfortable and practical"),
+    ("收藏鉴赏", "museum-quality collector piece, exquisite showpiece"),
+    ("送礼婚庆", "premium gift piece, ceremonial and auspicious"),
+    ("把玩文玩", "tactile palm play piece, smooth hand-feel for meditation"),
+]
+for i, (cn, en) in enumerate(scenes):
+    cursor.execute(
+        "INSERT IGNORE INTO prompt_mappings (mapping_type, cn_key, en_value, sort_order) VALUES (%s, %s, %s, %s)",
+        ("scene", cn, en, i))
+print(f"✅ 插入 {len(scenes)} 个用途场景映射")
+
+# ===== 10. 子类型映射 (sub_type) =====
+sub_types = [
+    ("二五牌", "2:5 ratio rectangular plaque"),
+    ("三角牌", "triangular shaped pendant"),
+    ("三五牌", "3:5 ratio rectangular plaque"),
+    ("四六牌", "4:6 ratio rectangular plaque"),
+    ("正方形", "square shaped plaque"),
+    ("椭圆形", "oval shaped plaque"),
+    ("平安镯", "flat interior round exterior classic bangle"),
+    ("福镯", "round interior round exterior full-round bangle"),
+    ("贵妃镯", "oval elliptical shape bangle fitting wrist contour"),
+    ("美人镯", "slim delicate thin bangle, elegant refined"),
+    ("方镯", "square cross-section angular bangle"),
+    ("雕花镯", "carved decorative pattern bangle"),
+    ("圆形耳钉", "round circular stud"),
+    ("水滴形耳钉", "teardrop shaped stud"),
+    ("方形耳钉", "square geometric stud"),
+    ("花朵形耳钉", "flower blossom shaped stud"),
+    ("心形耳钉", "heart shaped stud"),
+    ("几何形耳钉", "abstract geometric stud"),
+    ("耳环", "hoop earring"),
+    ("耳坠", "drop dangle earring"),
+    ("耳夹", "clip-on earring"),
+    ("流苏耳饰", "tassel fringe long earring"),
+    ("素面戒指", "plain smooth surface ring"),
+    ("镶嵌戒指", "metal-set mounted jade ring"),
+    ("雕花戒指", "carved decorative ring"),
+    ("扳指", "traditional archer thumb ring"),
+    ("指环", "simple band ring"),
+    ("锁骨链", "short collarbone chain necklace"),
+    ("吊坠项链", "pendant necklace with jade drop"),
+    ("串珠项链", "beaded jade strand necklace"),
+    ("编绳项链", "braided cord necklace with jade"),
+    ("毛衣链", "long sweater chain necklace"),
+]
+for i, (cn, en) in enumerate(sub_types):
+    cursor.execute(
+        "INSERT IGNORE INTO prompt_mappings (mapping_type, cn_key, en_value, sort_order) VALUES (%s, %s, %s, %s)",
+        ("sub_type", cn, en, i))
+print(f"✅ 插入 {len(sub_types)} 个子类型映射")
+
+conn.commit()
+conn.close()
+print("\n✅ 全部提示词数据初始化完成!")
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -11,3 +11,4 @@ python-multipart==0.0.9
 Pillow==10.2.0
 pydantic[email]==2.6.1
 pydantic-settings==2.1.0
+httpx==0.27.0
--- a/frontend/src/App.vue
+++ b/frontend/src/App.vue
@@ -1,19 +1,23 @@
 <template>
  <div class="app-container">
-    <AppHeader />
-    <main class="main-content">
+    <AppHeader v-if="!isAdminRoute" />
+    <main :class="isAdminRoute ? 'admin-main-content' : 'main-content'">
      <router-view />
    </main>
  </div>
 </template>

 <script setup lang="ts">
-import { onMounted } from 'vue'
+import { computed, onMounted } from 'vue'
+import { useRoute } from 'vue-router'
 import AppHeader from '@/components/AppHeader.vue'
 import { useUserStore } from '@/stores/user'

+const route = useRoute()
 const userStore = useUserStore()

+const isAdminRoute = computed(() => route.path.startsWith('/admin'))
+
 // 应用初始化时恢复登录状态
 onMounted(() => {
  userStore.init()
@@ -31,4 +35,8 @@ onMounted(() => {
  flex: 1;
  padding: 24px;
 }
+
+.admin-main-content {
+  flex: 1;
+}
 </style>
--- a/frontend/src/api/admin.ts
+++ b/frontend/src/api/admin.ts
@@ -0,0 +1,94 @@
+import request from './request'
+
+// ============ 仪表盘 ============
+export const getDashboard = () => request.get('/admin/dashboard')
+
+// ============ 系统配置 ============
+export const getConfigs = (group?: string) =>
+  request.get('/admin/configs', { params: group ? { group } : {} })
+
+export const updateConfigs = (configs: Record<string, string>) =>
+  request.post('/admin/configs', null, { 
+    // PUT 方法
+  })
+
+export const updateConfigsBatch = (configs: Record<string, string>) =>
+  request.put('/admin/configs', { configs })
+
+export const initDefaultConfigs = () =>
+  request.post('/admin/configs/init')
+
+// ============ 用户管理 ============
+export const getUsers = (params: { page?: number; page_size?: number; keyword?: string }) =>
+  request.get('/admin/users', { params })
+
+export const setUserAdmin = (userId: number, isAdmin: boolean) =>
+  request.put(`/admin/users/${userId}/admin`, { is_admin: isAdmin })
+
+export const deleteUser = (userId: number) =>
+  request.delete(`/admin/users/${userId}`)
+
+// ============ 品类管理 ============
+export const getAdminCategories = () =>
+  request.get('/admin/categories')
+
+export const createCategory = (data: { name: string; icon?: string; sort_order?: number; flow_type?: string }) =>
+  request.post('/admin/categories', data)
+
+export const updateCategory = (catId: number, data: { name?: string; icon?: string; sort_order?: number; flow_type?: string }) =>
+  request.put(`/admin/categories/${catId}`, data)
+
+export const deleteCategory = (catId: number) =>
+  request.delete(`/admin/categories/${catId}`)
+
+// -- 子类型 --
+export const createSubType = (data: { category_id: number; name: string; description?: string; preview_image?: string; sort_order?: number }) =>
+  request.post('/admin/sub-types', data)
+
+export const updateSubType = (stId: number, data: { name?: string; description?: string; preview_image?: string; sort_order?: number }) =>
+  request.put(`/admin/sub-types/${stId}`, data)
+
+export const deleteSubType = (stId: number) =>
+  request.delete(`/admin/sub-types/${stId}`)
+
+// -- 颜色 --
+export const createColor = (data: { category_id: number; name: string; hex_code?: string; sort_order?: number }) =>
+  request.post('/admin/colors', data)
+
+export const updateColor = (colorId: number, data: { name?: string; hex_code?: string; sort_order?: number }) =>
+  request.put(`/admin/colors/${colorId}`, data)
+
+export const deleteColor = (colorId: number) =>
+  request.delete(`/admin/colors/${colorId}`)
+
+// ============ 设计管理 ============
+export const getAdminDesigns = (params: { page?: number; page_size?: number; user_id?: number; status?: string }) =>
+  request.get('/admin/designs', { params })
+
+export const adminDeleteDesign = (designId: number) =>
+  request.delete(`/admin/designs/${designId}`)
+
+// ============ 提示词管理 ============
+export const getPromptTemplates = () =>
+  request.get('/admin/prompt-templates')
+
+export const updatePromptTemplate = (templateId: number, data: { template_value: string; description?: string }) =>
+  request.put(`/admin/prompt-templates/${templateId}`, data)
+
+export const getPromptMappings = (mappingType?: string) =>
+  request.get('/admin/prompt-mappings', { params: mappingType ? { mapping_type: mappingType } : {} })
+
+export const getMappingTypes = () =>
+  request.get('/admin/prompt-mappings/types')
+
+export const createPromptMapping = (data: { mapping_type: string; cn_key: string; en_value: string; sort_order?: number }) =>
+  request.post('/admin/prompt-mappings', data)
+
+export const updatePromptMapping = (mappingId: number, data: { cn_key?: string; en_value?: string; sort_order?: number }) =>
+  request.put(`/admin/prompt-mappings/${mappingId}`, data)
+
+export const deletePromptMapping = (mappingId: number) =>
+  request.delete(`/admin/prompt-mappings/${mappingId}`)
+
+export const previewPrompt = (params: Record<string, string>) =>
+  request.post('/admin/prompt-preview', params)
--- a/frontend/src/api/design.ts
+++ b/frontend/src/api/design.ts
@@ -11,6 +11,15 @@ export interface SubType {
  name: string
 }

+export interface DesignImage {
+  id: number
+  view_name: string
+  image_url: string | null
+  model_used: string | null
+  prompt_used: string | null
+  sort_order: number
+}
+
 export interface Design {
  id: number
  user_id: number
@@ -25,6 +34,7 @@ export interface Design {
  surface_finish: string | null
  usage_scene: string | null
  image_url: string | null
+  images: DesignImage[]
  status: string
  created_at: string
  updated_at: string
--- a/frontend/src/components/AdminLayout.vue
+++ b/frontend/src/components/AdminLayout.vue
@@ -0,0 +1,177 @@
+<template>
+  <div class="admin-layout">
+    <aside class="admin-sidebar">
+      <div class="sidebar-header">
+        <router-link to="/admin" class="admin-logo">
+          <span class="logo-icon">&#9881;</span>
+          <span class="logo-text">管理后台</span>
+        </router-link>
+      </div>
+      <nav class="sidebar-nav">
+        <router-link to="/admin" class="nav-item" exact-active-class="active">
+          <el-icon><DataBoard /></el-icon>
+          <span>仪表盘</span>
+        </router-link>
+        <router-link to="/admin/configs" class="nav-item" active-class="active">
+          <el-icon><Setting /></el-icon>
+          <span>系统配置</span>
+        </router-link>
+        <router-link to="/admin/users" class="nav-item" active-class="active">
+          <el-icon><User /></el-icon>
+          <span>用户管理</span>
+        </router-link>
+        <router-link to="/admin/categories" class="nav-item" active-class="active">
+          <el-icon><Grid /></el-icon>
+          <span>品类管理</span>
+        </router-link>
+        <router-link to="/admin/designs" class="nav-item" active-class="active">
+          <el-icon><PictureFilled /></el-icon>
+          <span>设计管理</span>
+        </router-link>
+        <router-link to="/admin/prompts" class="nav-item" active-class="active">
+          <el-icon><ChatLineSquare /></el-icon>
+          <span>提示词管理</span>
+        </router-link>
+      </nav>
+      <div class="sidebar-footer">
+        <router-link to="/" class="back-link">
+          <el-icon><Back /></el-icon>
+          <span>返回前台</span>
+        </router-link>
+      </div>
+    </aside>
+    <div class="admin-main">
+      <header class="admin-header">
+        <div class="header-title">{{ pageTitle }}</div>
+        <div class="header-user">
+          <span>{{ userStore.userInfo?.nickname || '管理员' }}</span>
+        </div>
+      </header>
+      <div class="admin-content">
+        <router-view />
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { computed } from 'vue'
+import { useRoute } from 'vue-router'
+import { DataBoard, Setting, User, Grid, PictureFilled, Back, ChatLineSquare } from '@element-plus/icons-vue'
+import { useUserStore } from '@/stores/user'
+
+const route = useRoute()
+const userStore = useUserStore()
+
+const pageTitle = computed(() => {
+  const titles: Record<string, string> = {
+    'AdminDashboard': '仪表盘',
+    'AdminConfigs': '系统配置',
+    'AdminUsers': '用户管理',
+    'AdminCategories': '品类管理',
+    'AdminDesigns': '设计管理',
+    'AdminPrompts': '提示词管理',
+  }
+  return titles[route.name as string] || '管理后台'
+})
+</script>
+
+<style scoped lang="scss">
+.admin-layout {
+  display: flex;
+  min-height: 100vh;
+  background: #f0f2f5;
+}
+
+.admin-sidebar {
+  width: 220px;
+  background: #1d1e2c;
+  display: flex;
+  flex-direction: column;
+  flex-shrink: 0;
+}
+
+.sidebar-header {
+  padding: 20px;
+  border-bottom: 1px solid rgba(255,255,255,0.08);
+
+  .admin-logo {
+    display: flex;
+    align-items: center;
+    gap: 8px;
+    text-decoration: none;
+    color: #fff;
+
+    .logo-icon { font-size: 22px; }
+    .logo-text { font-size: 18px; font-weight: 600; letter-spacing: 2px; }
+  }
+}
+
+.sidebar-nav {
+  flex: 1;
+  padding: 12px 0;
+
+  .nav-item {
+    display: flex;
+    align-items: center;
+    gap: 10px;
+    padding: 12px 24px;
+    color: rgba(255,255,255,0.65);
+    text-decoration: none;
+    font-size: 14px;
+    transition: all 0.2s;
+
+    &:hover { color: #fff; background: rgba(255,255,255,0.06); }
+    &.active {
+      color: #fff;
+      background: #5B7E6B;
+      border-right: 3px solid #A8D5BA;
+    }
+  }
+}
+
+.sidebar-footer {
+  padding: 16px;
+  border-top: 1px solid rgba(255,255,255,0.08);
+
+  .back-link {
+    display: flex;
+    align-items: center;
+    gap: 8px;
+    color: rgba(255,255,255,0.5);
+    text-decoration: none;
+    font-size: 13px;
+    padding: 8px;
+    border-radius: 6px;
+    transition: all 0.2s;
+
+    &:hover { color: #fff; background: rgba(255,255,255,0.06); }
+  }
+}
+
+.admin-main {
+  flex: 1;
+  display: flex;
+  flex-direction: column;
+  overflow: hidden;
+}
+
+.admin-header {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  height: 56px;
+  padding: 0 24px;
+  background: #fff;
+  border-bottom: 1px solid #e8e8e8;
+
+  .header-title { font-size: 16px; font-weight: 600; color: #1d1e2c; }
+  .header-user { font-size: 14px; color: #666; }
+}
+
+.admin-content {
+  flex: 1;
+  padding: 24px;
+  overflow-y: auto;
+}
+</style>
--- a/frontend/src/components/AppHeader.vue
+++ b/frontend/src/components/AppHeader.vue
@@ -8,6 +8,7 @@
    <nav class="header-nav">
      <router-link to="/" class="nav-link">设计</router-link>
      <router-link to="/generate" class="nav-link">生成</router-link>
+      <router-link to="/admin" class="nav-link admin-link" v-if="isAdmin">管理后台</router-link>
    </nav>
    <div class="header-right">
      <template v-if="isLoggedIn">
@@ -43,6 +44,7 @@ const userStore = useUserStore()

 const isLoggedIn = computed(() => !!userStore.token)
 const userNickname = computed(() => userStore.userInfo?.nickname || '用户')
+const isAdmin = computed(() => !!userStore.userInfo?.is_admin)

 const handleCommand = (command: string) => {
  if (command === 'user') {
@@ -94,6 +96,11 @@ const handleCommand = (command: string) => {
      color: #5B7E6B;
      border-bottom-color: #5B7E6B;
    }
+
+    &.admin-link {
+      color: #E6A23C;
+      &:hover, &.router-link-active { color: #E6A23C; border-bottom-color: #E6A23C; }
+    }
  }
 }

--- a/frontend/src/components/DesignPreview.vue
+++ b/frontend/src/components/DesignPreview.vue
@@ -1,14 +1,27 @@
 <template>
  <div class="design-preview">
+    <!-- 视角 Tab 栏（多图时显示） -->
+    <div class="view-tabs" v-if="hasMultipleViews">
+      <button
+        v-for="(img, idx) in design.images"
+        :key="img.id"
+        class="view-tab"
+        :class="{ active: activeViewIndex === idx }"
+        @click="activeViewIndex = idx"
+      >
+        {{ img.view_name }}
+      </button>
+    </div>
+
    <!-- 图片预览区 -->
    <div class="preview-container">
      <div class="image-wrapper" :style="{ transform: `scale(${scale})` }">
        <el-image
-          :src="imageUrl"
+          :src="currentImageUrl"
          :alt="design.prompt"
          fit="contain"
-          :preview-src-list="[imageUrl]"
-          :initial-index="0"
+          :preview-src-list="allImageUrls"
+          :initial-index="activeViewIndex"
          preview-teleported
          class="design-image"
        >
@@ -27,6 +40,11 @@
        </el-image>
      </div>
      
+      <!-- 视角指示器（多图时显示） -->
+      <div class="view-indicator" v-if="hasMultipleViews">
+        <span class="indicator-text">{{ activeViewName }} ({{ activeViewIndex + 1 }}/{{ design.images.length }})</span>
+      </div>
+
      <!-- 缩放控制 -->
      <div class="zoom-controls">
        <button class="zoom-btn" @click="zoomOut" :disabled="scale <= 0.5">
@@ -84,7 +102,7 @@
 </template>

 <script setup lang="ts">
-import { ref, computed } from 'vue'
+import { ref, computed, watch } from 'vue'
 import { useRouter } from 'vue-router'
 import { Loading, PictureFilled, ZoomIn, ZoomOut, RefreshRight, Download, User } from '@element-plus/icons-vue'
 import { ElMessage } from 'element-plus'
@@ -97,17 +115,48 @@ const props = defineProps<{

 const router = useRouter()

+// 当前视角索引
+const activeViewIndex = ref(0)
+
 // 缩放比例
 const scale = ref(1)

-// 图片URL（添加API前缀）
-const imageUrl = computed(() => {
-  if (!props.design.image_url) return ''
-  // 如果已经是完整URL则直接使用，否则添加 /api 前缀
-  if (props.design.image_url.startsWith('http')) {
-    return props.design.image_url
+// 是否有多视角图片
+const hasMultipleViews = computed(() => {
+  return props.design.images && props.design.images.length > 1
+})
+
+// 当前视角名称
+const activeViewName = computed(() => {
+  if (props.design.images && props.design.images.length > 0) {
+    return props.design.images[activeViewIndex.value]?.view_name || ''
  }
-  return `/api${props.design.image_url}`
+  return ''
+})
+
+// 获取图片URL（添加API前缀）
+const toImageUrl = (url: string | null): string => {
+  if (!url) return ''
+  if (url.startsWith('http')) return url
+  return `/api${url}`
+}
+
+// 当前显示的图片URL
+const currentImageUrl = computed(() => {
+  // 优先用多视角图片
+  if (props.design.images && props.design.images.length > 0) {
+    return toImageUrl(props.design.images[activeViewIndex.value]?.image_url)
+  }
+  // 兼容旧数据，使用单图
+  return toImageUrl(props.design.image_url)
+})
+
+// 所有图片URL（用于大图预览）
+const allImageUrls = computed(() => {
+  if (props.design.images && props.design.images.length > 0) {
+    return props.design.images.map(img => toImageUrl(img.image_url))
+  }
+  return [toImageUrl(props.design.image_url)]
 })

 // 下载URL
@@ -117,7 +166,13 @@ const downloadUrl = computed(() => getDesignDownloadUrl(props.design.id))
 const downloadFilename = computed(() => {
  const category = props.design.category?.name || '设计'
  const subType = props.design.sub_type?.name || ''
-  return `${category}${subType ? '-' + subType : ''}-${props.design.id}.png`
+  const viewSuffix = hasMultipleViews.value ? `-${activeViewName.value}` : ''
+  return `${category}${subType ? '-' + subType : ''}${viewSuffix}-${props.design.id}.png`
+})
+
+// 切换视角时重置缩放
+watch(activeViewIndex, () => {
+  scale.value = 1
 })

 // 放大
@@ -163,6 +218,54 @@ $text-light: #999999;
  gap: 24px;
 }

+.view-tabs {
+  display: flex;
+  gap: 8px;
+  padding: 4px;
+  background: #fff;
+  border-radius: 10px;
+  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
+}
+
+.view-tab {
+  flex: 1;
+  padding: 10px 16px;
+  background: transparent;
+  border: 1px solid transparent;
+  border-radius: 8px;
+  font-size: 14px;
+  color: $text-secondary;
+  cursor: pointer;
+  transition: all 0.25s ease;
+  letter-spacing: 1px;
+
+  &:hover {
+    color: $primary-color;
+    background: rgba($primary-color, 0.05);
+  }
+
+  &.active {
+    background: $primary-color;
+    color: #fff;
+    border-color: $primary-color;
+    font-weight: 500;
+  }
+}
+
+.view-indicator {
+  position: absolute;
+  top: 16px;
+  left: 16px;
+  background: rgba(0, 0, 0, 0.5);
+  padding: 4px 12px;
+  border-radius: 12px;
+}
+
+.indicator-text {
+  font-size: 12px;
+  color: #fff;
+}
+
 .preview-container {
  position: relative;
  background: #fff;
--- a/frontend/src/env.d.ts
+++ b/frontend/src/env.d.ts
@@ -0,0 +1,7 @@
+/// <reference types="vite/client" />
+
+declare module '*.vue' {
+  import type { DefineComponent } from 'vue'
+  const component: DefineComponent<{}, {}, any>
+  export default component
+}
--- a/frontend/src/router/index.ts
+++ b/frontend/src/router/index.ts
@@ -30,6 +30,44 @@ const router = createRouter({
      path: '/register',
      name: 'Register',
      component: () => import('@/views/Register.vue')
+    },
+    // 管理后台路由
+    {
+      path: '/admin',
+      component: () => import('@/components/AdminLayout.vue'),
+      meta: { requiresAuth: true, requiresAdmin: true },
+      children: [
+        {
+          path: '',
+          name: 'AdminDashboard',
+          component: () => import('@/views/admin/Dashboard.vue')
+        },
+        {
+          path: 'configs',
+          name: 'AdminConfigs',
+          component: () => import('@/views/admin/ConfigManage.vue')
+        },
+        {
+          path: 'users',
+          name: 'AdminUsers',
+          component: () => import('@/views/admin/UserManage.vue')
+        },
+        {
+          path: 'categories',
+          name: 'AdminCategories',
+          component: () => import('@/views/admin/CategoryManage.vue')
+        },
+        {
+          path: 'designs',
+          name: 'AdminDesigns',
+          component: () => import('@/views/admin/DesignManage.vue')
+        },
+        {
+          path: 'prompts',
+          name: 'AdminPrompts',
+          component: () => import('@/views/admin/PromptManage.vue')
+        }
+      ]
    }
  ]
 })
--- a/frontend/src/stores/user.ts
+++ b/frontend/src/stores/user.ts
@@ -8,6 +8,7 @@ export interface UserInfo {
  nickname: string
  phone?: string | null
  avatar?: string | null
+  is_admin?: boolean
  created_at?: string
 }

--- a/frontend/src/views/GeneratePage.vue
+++ b/frontend/src/views/GeneratePage.vue
@@ -39,8 +39,8 @@
            <div class="ink-drop"></div>
            <div class="ink-drop"></div>
          </div>
-          <p class="loading-text">设计生成中，请稍候...</p>
-          <p class="loading-hint">正在将您的创意转化为玉雕设计</p>
+          <p class="loading-text">正在用 AI 生成多视角设计图...</p>
+          <p class="loading-hint">根据品类自动生成 2~4 张不同视角的设计效果图，请耐心等候</p>
        </div>
      </div>

@@ -62,8 +62,15 @@
                :key="opt"
                class="tag-item"
                :class="{ active: carvingTechnique === opt }"
-                @click="carvingTechnique = carvingTechnique === opt ? '' : opt"
+                @click="selectTag('carvingTechnique', opt)"
              >{{ opt }}</span>
+              <el-input
+                v-model="customCarving"
+                placeholder="自定义工艺"
+                size="small"
+                class="custom-input"
+                @focus="carvingTechnique = ''"
+              />
            </div>
          </div>

@@ -76,8 +83,15 @@
                :key="opt"
                class="tag-item"
                :class="{ active: designStyle === opt }"
-                @click="designStyle = designStyle === opt ? '' : opt"
+                @click="selectTag('designStyle', opt)"
              >{{ opt }}</span>
+              <el-input
+                v-model="customStyle"
+                placeholder="自定义风格"
+                size="small"
+                class="custom-input"
+                @focus="designStyle = ''"
+              />
            </div>
          </div>

@@ -90,8 +104,15 @@
                :key="opt"
                class="tag-item"
                :class="{ active: motif === opt }"
-                @click="motif = motif === opt ? '' : opt"
+                @click="selectTag('motif', opt)"
              >{{ opt }}</span>
+              <el-input
+                v-model="customMotif"
+                placeholder="自定义题材"
+                size="small"
+                class="custom-input"
+                @focus="motif = ''"
+              />
            </div>
          </div>

@@ -104,13 +125,13 @@
                :key="opt"
                class="tag-item"
                :class="{ active: sizeSpec === opt }"
-                @click="sizeSpec = sizeSpec === opt ? '' : opt"
+                @click="selectTag('sizeSpec', opt)"
              >{{ opt }}</span>
              <el-input
                v-model="customSize"
                placeholder="自定义尺寸"
                size="small"
-                class="custom-size-input"
+                class="custom-input"
                @focus="sizeSpec = ''"
              />
            </div>
@@ -125,8 +146,15 @@
                :key="opt"
                class="tag-item"
                :class="{ active: surfaceFinish === opt }"
-                @click="surfaceFinish = surfaceFinish === opt ? '' : opt"
+                @click="selectTag('surfaceFinish', opt)"
              >{{ opt }}</span>
+              <el-input
+                v-model="customFinish"
+                placeholder="自定义处理"
+                size="small"
+                class="custom-input"
+                @focus="surfaceFinish = ''"
+              />
            </div>
          </div>

@@ -139,8 +167,15 @@
                :key="opt"
                class="tag-item"
                :class="{ active: usageScene === opt }"
-                @click="usageScene = usageScene === opt ? '' : opt"
+                @click="selectTag('usageScene', opt)"
              >{{ opt }}</span>
+              <el-input
+                v-model="customScene"
+                placeholder="自定义场景"
+                size="small"
+                class="custom-input"
+                @focus="usageScene = ''"
+              />
            </div>
          </div>
        </div>
@@ -178,7 +213,7 @@
      <section v-else class="preview-section">
        <div class="section-header">
          <h2 class="section-title">设计预览</h2>
-          <p class="section-desc">您的设计已生成完成</p>
+          <p class="section-desc">您的多视角设计已生成完成</p>
        </div>

        <DesignPreview :design="currentDesign" />
@@ -258,10 +293,38 @@ const carvingTechnique = ref('')
 const designStyle = ref('')
 const motif = ref('')
 const sizeSpec = ref('')
-const customSize = ref('')
 const surfaceFinish = ref('')
 const usageScene = ref('')

+// 自定义输入状态
+const customCarving = ref('')
+const customStyle = ref('')
+const customMotif = ref('')
+const customSize = ref('')
+const customFinish = ref('')
+const customScene = ref('')
+
+// 自定义输入与标签的关联 Map
+const tagRefs: Record<string, any> = {
+  carvingTechnique, designStyle, motif, sizeSpec, surfaceFinish, usageScene
+}
+const customRefs: Record<string, any> = {
+  carvingTechnique: customCarving, designStyle: customStyle, motif: customMotif,
+  sizeSpec: customSize, surfaceFinish: customFinish, usageScene: customScene
+}
+
+// 选择标签时清除对应自定义输入
+const selectTag = (field: string, opt: string) => {
+  const tagRef = tagRefs[field]
+  const customRef = customRefs[field]
+  if (tagRef.value === opt) {
+    tagRef.value = ''
+  } else {
+    tagRef.value = opt
+    if (customRef) customRef.value = ''
+  }
+}
+
 // 静态选项
 const carvingOptions = ['浮雕', '圆雕', '镂空雕', '阴刻', '线雕', '俏色雕', '薄意雕', '素面']
 const styleOptions = ['古典传统', '新中式', '写实', '抽象意境', '极简素面']
@@ -315,12 +378,12 @@ const handleGenerate = async () => {
      sub_type_id: subTypeId.value || undefined,
      color_id: colorId.value || undefined,
      prompt: prompt.value.trim(),
-      carving_technique: carvingTechnique.value || undefined,
-      design_style: designStyle.value || undefined,
-      motif: motif.value || undefined,
+      carving_technique: carvingTechnique.value || customCarving.value || undefined,
+      design_style: designStyle.value || customStyle.value || undefined,
+      motif: motif.value || customMotif.value || undefined,
      size_spec: sizeSpec.value || customSize.value || undefined,
-      surface_finish: surfaceFinish.value || undefined,
-      usage_scene: usageScene.value || undefined,
+      surface_finish: surfaceFinish.value || customFinish.value || undefined,
+      usage_scene: usageScene.value || customScene.value || undefined,
    })
    ElMessage.success('设计生成成功！')
  } catch (error) {
@@ -542,7 +605,7 @@ $text-light: #999999;
  }
 }

-.custom-size-input {
+.custom-input {
  width: 130px;

  :deep(.el-input__inner) {
--- a/frontend/src/views/admin/CategoryManage.vue
+++ b/frontend/src/views/admin/CategoryManage.vue
@@ -0,0 +1,299 @@
+<template>
+  <div class="category-manage">
+    <div class="page-actions">
+      <el-button type="primary" @click="showAddCategory">新增品类</el-button>
+    </div>
+
+    <div class="category-card" v-for="cat in categories" :key="cat.id" v-loading="loading">
+      <div class="cat-header">
+        <div class="cat-info">
+          <span class="cat-icon">{{ cat.icon || '📦' }}</span>
+          <span class="cat-name">{{ cat.name }}</span>
+          <el-tag size="small" type="info">{{ cat.flow_type }}</el-tag>
+          <el-tag size="small">排序: {{ cat.sort_order }}</el-tag>
+        </div>
+        <div class="cat-actions">
+          <el-button size="small" @click="editCategory(cat)">编辑</el-button>
+          <el-button size="small" type="danger" @click="removeCategory(cat)">删除</el-button>
+        </div>
+      </div>
+
+      <!-- 子类型 -->
+      <div class="sub-section">
+        <div class="sub-title">
+          <span>子类型 ({{ cat.sub_types.length }})</span>
+          <el-button size="small" @click="showAddSubType(cat.id)">添加</el-button>
+        </div>
+        <el-table :data="cat.sub_types" size="small" v-if="cat.sub_types.length > 0">
+          <el-table-column prop="name" label="名称" width="120" />
+          <el-table-column prop="description" label="描述" />
+          <el-table-column prop="sort_order" label="排序" width="80" />
+          <el-table-column label="操作" width="140">
+            <template #default="{ row }">
+              <el-button size="small" @click="editSubType(row)">编辑</el-button>
+              <el-button size="small" type="danger" @click="removeSubType(row)">删除</el-button>
+            </template>
+          </el-table-column>
+        </el-table>
+      </div>
+
+      <!-- 颜色 -->
+      <div class="sub-section">
+        <div class="sub-title">
+          <span>颜色 ({{ cat.colors.length }})</span>
+          <el-button size="small" @click="showAddColor(cat.id)">添加</el-button>
+        </div>
+        <div class="color-list" v-if="cat.colors.length > 0">
+          <div class="color-chip" v-for="c in cat.colors" :key="c.id">
+            <span class="color-dot" :style="{ backgroundColor: c.hex_code }"></span>
+            <span class="color-name">{{ c.name }}</span>
+            <span class="color-hex">{{ c.hex_code }}</span>
+            <el-button size="small" text @click="editColor(c, cat.id)">编辑</el-button>
+            <el-button size="small" text type="danger" @click="removeColor(c)">删除</el-button>
+          </div>
+        </div>
+      </div>
+    </div>
+
+    <!-- 品类弹窗 -->
+    <el-dialog v-model="catDialogVisible" :title="catForm.id ? '编辑品类' : '新增品类'" width="460px">
+      <el-form :model="catForm" label-width="80px">
+        <el-form-item label="名称"><el-input v-model="catForm.name" /></el-form-item>
+        <el-form-item label="图标"><el-input v-model="catForm.icon" placeholder="emoji 或图标名" /></el-form-item>
+        <el-form-item label="流程类型">
+          <el-select v-model="catForm.flow_type">
+            <el-option label="full" value="full" />
+            <el-option label="size_color" value="size_color" />
+            <el-option label="simple" value="simple" />
+          </el-select>
+        </el-form-item>
+        <el-form-item label="排序"><el-input-number v-model="catForm.sort_order" :min="0" /></el-form-item>
+      </el-form>
+      <template #footer>
+        <el-button @click="catDialogVisible = false">取消</el-button>
+        <el-button type="primary" @click="saveCat">确定</el-button>
+      </template>
+    </el-dialog>
+
+    <!-- 子类型弹窗 -->
+    <el-dialog v-model="stDialogVisible" :title="stForm.id ? '编辑子类型' : '新增子类型'" width="460px">
+      <el-form :model="stForm" label-width="80px">
+        <el-form-item label="名称"><el-input v-model="stForm.name" /></el-form-item>
+        <el-form-item label="描述"><el-input v-model="stForm.description" /></el-form-item>
+        <el-form-item label="排序"><el-input-number v-model="stForm.sort_order" :min="0" /></el-form-item>
+      </el-form>
+      <template #footer>
+        <el-button @click="stDialogVisible = false">取消</el-button>
+        <el-button type="primary" @click="saveSt">确定</el-button>
+      </template>
+    </el-dialog>
+
+    <!-- 颜色弹窗 -->
+    <el-dialog v-model="colorDialogVisible" :title="colorForm.id ? '编辑颜色' : '新增颜色'" width="460px">
+      <el-form :model="colorForm" label-width="80px">
+        <el-form-item label="名称"><el-input v-model="colorForm.name" /></el-form-item>
+        <el-form-item label="色值">
+          <el-color-picker v-model="colorForm.hex_code" />
+          <el-input v-model="colorForm.hex_code" style="width: 120px; margin-left: 12px" />
+        </el-form-item>
+        <el-form-item label="排序"><el-input-number v-model="colorForm.sort_order" :min="0" /></el-form-item>
+      </el-form>
+      <template #footer>
+        <el-button @click="colorDialogVisible = false">取消</el-button>
+        <el-button type="primary" @click="saveColor">确定</el-button>
+      </template>
+    </el-dialog>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref, onMounted } from 'vue'
+import { ElMessage, ElMessageBox } from 'element-plus'
+import {
+  getAdminCategories, createCategory, updateCategory, deleteCategory,
+  createSubType, updateSubType, deleteSubType,
+  createColor, updateColor, deleteColor
+} from '@/api/admin'
+
+interface ColorItem { id: number; name: string; hex_code: string; sort_order: number }
+interface SubTypeItem { id: number; name: string; description: string; preview_image: string; sort_order: number }
+interface CategoryItem { id: number; name: string; icon: string; sort_order: number; flow_type: string; sub_types: SubTypeItem[]; colors: ColorItem[] }
+
+const categories = ref<CategoryItem[]>([])
+const loading = ref(false)
+
+// 品类表单
+const catDialogVisible = ref(false)
+const catForm = ref<any>({ id: 0, name: '', icon: '', sort_order: 0, flow_type: 'full' })
+
+// 子类型表单
+const stDialogVisible = ref(false)
+const stForm = ref<any>({ id: 0, category_id: 0, name: '', description: '', sort_order: 0 })
+
+// 颜色表单
+const colorDialogVisible = ref(false)
+const colorForm = ref<any>({ id: 0, category_id: 0, name: '', hex_code: '#8B7355', sort_order: 0 })
+
+const loadData = async () => {
+  loading.value = true
+  try {
+    categories.value = (await getAdminCategories()) as any
+  } catch (e) { console.error(e) }
+  finally { loading.value = false }
+}
+
+// ---- 品类 ----
+const showAddCategory = () => {
+  catForm.value = { id: 0, name: '', icon: '', sort_order: 0, flow_type: 'full' }
+  catDialogVisible.value = true
+}
+const editCategory = (cat: CategoryItem) => {
+  catForm.value = { ...cat }
+  catDialogVisible.value = true
+}
+const saveCat = async () => {
+  try {
+    if (catForm.value.id) {
+      await updateCategory(catForm.value.id, { name: catForm.value.name, icon: catForm.value.icon, sort_order: catForm.value.sort_order, flow_type: catForm.value.flow_type })
+    } else {
+      await createCategory({ name: catForm.value.name, icon: catForm.value.icon, sort_order: catForm.value.sort_order, flow_type: catForm.value.flow_type })
+    }
+    ElMessage.success('保存成功')
+    catDialogVisible.value = false
+    await loadData()
+  } catch (e) { console.error(e) }
+}
+const removeCategory = async (cat: CategoryItem) => {
+  try {
+    await ElMessageBox.confirm(`确定删除品类「${cat.name}」？子类型和颜色也将被删除`, '警告', { type: 'warning' })
+    await deleteCategory(cat.id)
+    ElMessage.success('品类已删除')
+    await loadData()
+  } catch (e: any) { if (e !== 'cancel') console.error(e) }
+}
+
+// ---- 子类型 ----
+const showAddSubType = (catId: number) => {
+  stForm.value = { id: 0, category_id: catId, name: '', description: '', sort_order: 0 }
+  stDialogVisible.value = true
+}
+const editSubType = (st: SubTypeItem) => {
+  stForm.value = { ...st }
+  stDialogVisible.value = true
+}
+const saveSt = async () => {
+  try {
+    if (stForm.value.id) {
+      await updateSubType(stForm.value.id, { name: stForm.value.name, description: stForm.value.description, sort_order: stForm.value.sort_order })
+    } else {
+      await createSubType({ category_id: stForm.value.category_id, name: stForm.value.name, description: stForm.value.description, sort_order: stForm.value.sort_order })
+    }
+    ElMessage.success('保存成功')
+    stDialogVisible.value = false
+    await loadData()
+  } catch (e) { console.error(e) }
+}
+const removeSubType = async (st: SubTypeItem) => {
+  try {
+    await ElMessageBox.confirm(`确定删除子类型「${st.name}」？`, '确认')
+    await deleteSubType(st.id)
+    ElMessage.success('子类型已删除')
+    await loadData()
+  } catch (e: any) { if (e !== 'cancel') console.error(e) }
+}
+
+// ---- 颜色 ----
+const showAddColor = (catId: number) => {
+  colorForm.value = { id: 0, category_id: catId, name: '', hex_code: '#8B7355', sort_order: 0 }
+  colorDialogVisible.value = true
+}
+const editColor = (c: ColorItem, catId: number) => {
+  colorForm.value = { ...c, category_id: catId }
+  colorDialogVisible.value = true
+}
+const saveColor = async () => {
+  try {
+    if (colorForm.value.id) {
+      await updateColor(colorForm.value.id, { name: colorForm.value.name, hex_code: colorForm.value.hex_code, sort_order: colorForm.value.sort_order })
+    } else {
+      await createColor({ category_id: colorForm.value.category_id, name: colorForm.value.name, hex_code: colorForm.value.hex_code, sort_order: colorForm.value.sort_order })
+    }
+    ElMessage.success('保存成功')
+    colorDialogVisible.value = false
+    await loadData()
+  } catch (e) { console.error(e) }
+}
+const removeColor = async (c: ColorItem) => {
+  try {
+    await ElMessageBox.confirm(`确定删除颜色「${c.name}」？`, '确认')
+    await deleteColor(c.id)
+    ElMessage.success('颜色已删除')
+    await loadData()
+  } catch (e: any) { if (e !== 'cancel') console.error(e) }
+}
+
+onMounted(loadData)
+</script>
+
+<style scoped lang="scss">
+.page-actions { margin-bottom: 20px; }
+
+.category-card {
+  background: #fff;
+  border-radius: 8px;
+  padding: 20px;
+  margin-bottom: 20px;
+  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
+
+  .cat-header {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    padding-bottom: 12px;
+    border-bottom: 1px solid #f0f0f0;
+  }
+  .cat-info {
+    display: flex;
+    align-items: center;
+    gap: 10px;
+    .cat-icon { font-size: 22px; }
+    .cat-name { font-size: 16px; font-weight: 600; }
+  }
+}
+
+.sub-section {
+  margin-top: 16px;
+  .sub-title {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    margin-bottom: 10px;
+    font-size: 14px;
+    font-weight: 500;
+    color: #666;
+  }
+}
+
+.color-list {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 12px;
+}
+.color-chip {
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  padding: 6px 12px;
+  background: #f9f9f9;
+  border-radius: 6px;
+  font-size: 13px;
+
+  .color-dot {
+    width: 16px;
+    height: 16px;
+    border-radius: 50%;
+    border: 1px solid #ddd;
+  }
+  .color-hex { color: #999; font-family: monospace; font-size: 12px; }
+}
+</style>
--- a/frontend/src/views/admin/ConfigManage.vue
+++ b/frontend/src/views/admin/ConfigManage.vue
@@ -0,0 +1,381 @@
+<template>
+  <div class="config-page">
+    <!-- 默认模型选择 -->
+    <div class="section-card">
+      <h3 class="section-title">默认生图模型</h3>
+      <div class="model-switch">
+        <div
+          class="model-option"
+          :class="{ active: defaultModel === 'flux-dev' }"
+          @click="setDefaultModel('flux-dev')"
+        >
+          <div class="model-badge">默认</div>
+          <div class="model-name">SiliconFlow FLUX.1 [dev]</div>
+          <div class="model-price">~0.13 元/张</div>
+          <div class="model-tag">性价比高</div>
+        </div>
+        <div
+          class="model-option"
+          :class="{ active: defaultModel === 'seedream-4.5' }"
+          @click="setDefaultModel('seedream-4.5')"
+        >
+          <div class="model-badge">备选</div>
+          <div class="model-name">火山引擎 Seedream 4.5</div>
+          <div class="model-price">~0.30 元/张</div>
+          <div class="model-tag">高质量</div>
+        </div>
+      </div>
+    </div>
+
+    <!-- SiliconFlow 配置卡片 -->
+    <div class="section-card">
+      <div class="card-header">
+        <div class="card-title-row">
+          <h3 class="section-title">SiliconFlow FLUX.1 [dev]</h3>
+          <el-tag :type="siliconflowStatus" size="small">
+            {{ siliconflowStatusText }}
+          </el-tag>
+        </div>
+        <p class="card-desc">硅基流动文生图 API，基于 FLUX.1 开源模型，性价比高</p>
+      </div>
+      <el-form label-width="120px" class="config-form">
+        <el-form-item label="API Key">
+          <el-input
+            v-model="siliconflowKey"
+            type="password"
+            show-password
+            placeholder="请输入 SiliconFlow API Key"
+            clearable
+          />
+        </el-form-item>
+        <el-form-item label="接口地址">
+          <el-input v-model="siliconflowUrl" placeholder="https://api.siliconflow.cn/v1" clearable />
+        </el-form-item>
+        <el-form-item>
+          <el-button type="primary" @click="testSiliconflow" :loading="testingSiliconflow">
+            测试连接
+          </el-button>
+          <span v-if="siliconflowTestResult" :class="['test-result', siliconflowTestResult.ok ? 'success' : 'fail']">
+            {{ siliconflowTestResult.msg }}
+          </span>
+        </el-form-item>
+      </el-form>
+    </div>
+
+    <!-- 火山引擎配置卡片 -->
+    <div class="section-card">
+      <div class="card-header">
+        <div class="card-title-row">
+          <h3 class="section-title">火山引擎 Seedream 4.5</h3>
+          <el-tag :type="volcengineStatus" size="small">
+            {{ volcengineStatusText }}
+          </el-tag>
+        </div>
+        <p class="card-desc">字节跳动火山引擎文生图 API，Seedream 4.5 模型，高质量输出</p>
+      </div>
+      <el-form label-width="120px" class="config-form">
+        <el-form-item label="API Key">
+          <el-input
+            v-model="volcengineKey"
+            type="password"
+            show-password
+            placeholder="请输入火山引擎 API Key"
+            clearable
+          />
+        </el-form-item>
+        <el-form-item label="接口地址">
+          <el-input v-model="volcengineUrl" placeholder="https://ark.cn-beijing.volces.com/api/v3" clearable />
+        </el-form-item>
+        <el-form-item>
+          <el-button type="primary" @click="testVolcengine" :loading="testingVolcengine">
+            测试连接
+          </el-button>
+          <span v-if="volcengineTestResult" :class="['test-result', volcengineTestResult.ok ? 'success' : 'fail']">
+            {{ volcengineTestResult.msg }}
+          </span>
+        </el-form-item>
+      </el-form>
+    </div>
+
+    <!-- 通用设置 -->
+    <div class="section-card">
+      <h3 class="section-title">通用设置</h3>
+      <el-form label-width="120px" class="config-form">
+        <el-form-item label="图片尺寸">
+          <el-select v-model="imageSize" style="width: 200px">
+            <el-option label="512 x 512" value="512" />
+            <el-option label="768 x 768" value="768" />
+            <el-option label="1024 x 1024" value="1024" />
+          </el-select>
+          <span class="form-tip">生成图片的宽高（像素）</span>
+        </el-form-item>
+      </el-form>
+    </div>
+
+    <!-- 保存按钮 -->
+    <div class="save-bar">
+      <el-button type="primary" size="large" @click="handleSave" :loading="saving">
+        保存所有配置
+      </el-button>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref, computed, onMounted } from 'vue'
+import { ElMessage } from 'element-plus'
+import { getConfigs, updateConfigsBatch } from '@/api/admin'
+import request from '@/api/request'
+
+// 配置值
+const defaultModel = ref('flux-dev')
+const siliconflowKey = ref('')
+const siliconflowUrl = ref('https://api.siliconflow.cn/v1')
+const volcengineKey = ref('')
+const volcengineUrl = ref('https://ark.cn-beijing.volces.com/api/v3')
+const imageSize = ref('1024')
+const saving = ref(false)
+
+// 测试状态
+const testingSiliconflow = ref(false)
+const testingVolcengine = ref(false)
+const siliconflowTestResult = ref<{ ok: boolean; msg: string } | null>(null)
+const volcengineTestResult = ref<{ ok: boolean; msg: string } | null>(null)
+
+// 状态计算
+const siliconflowStatus = computed(() => siliconflowKey.value ? 'success' : 'info')
+const siliconflowStatusText = computed(() => siliconflowKey.value ? '已配置' : '未配置')
+const volcengineStatus = computed(() => volcengineKey.value ? 'success' : 'info')
+const volcengineStatusText = computed(() => volcengineKey.value ? '已配置' : '未配置')
+
+// 加载配置
+const loadConfigs = async () => {
+  try {
+    const data = await getConfigs() as any
+    const items: any[] = data.items || []
+    const map: Record<string, string> = {}
+    for (const item of items) {
+      map[item.config_key] = item.config_value || ''
+    }
+    defaultModel.value = map['AI_IMAGE_MODEL'] || 'flux-dev'
+    // 注意：API Key 是脱敏的（****），不回填到输入框
+    // 只有完整值才回填
+    if (map['SILICONFLOW_API_KEY'] && !map['SILICONFLOW_API_KEY'].includes('****')) {
+      siliconflowKey.value = map['SILICONFLOW_API_KEY']
+    }
+    siliconflowUrl.value = map['SILICONFLOW_BASE_URL'] || 'https://api.siliconflow.cn/v1'
+    if (map['VOLCENGINE_API_KEY'] && !map['VOLCENGINE_API_KEY'].includes('****')) {
+      volcengineKey.value = map['VOLCENGINE_API_KEY']
+    }
+    volcengineUrl.value = map['VOLCENGINE_BASE_URL'] || 'https://ark.cn-beijing.volces.com/api/v3'
+    imageSize.value = map['AI_IMAGE_SIZE'] || '1024'
+  } catch (e) {
+    console.error('加载配置失败', e)
+  }
+}
+
+// 切换默认模型
+const setDefaultModel = (model: string) => {
+  defaultModel.value = model
+}
+
+// 保存配置
+const handleSave = async () => {
+  saving.value = true
+  try {
+    const configs: Record<string, string> = {
+      AI_IMAGE_MODEL: defaultModel.value,
+      SILICONFLOW_BASE_URL: siliconflowUrl.value,
+      VOLCENGINE_BASE_URL: volcengineUrl.value,
+      AI_IMAGE_SIZE: imageSize.value,
+    }
+    // API Key 只有用户填写了才提交（留空不覆盖）
+    if (siliconflowKey.value) {
+      configs['SILICONFLOW_API_KEY'] = siliconflowKey.value
+    }
+    if (volcengineKey.value) {
+      configs['VOLCENGINE_API_KEY'] = volcengineKey.value
+    }
+    await updateConfigsBatch(configs)
+    ElMessage.success('配置已保存')
+    await loadConfigs()
+  } catch (e) {
+    console.error('保存失败', e)
+  } finally {
+    saving.value = false
+  }
+}
+
+// 测试 SiliconFlow 连接
+const testSiliconflow = async () => {
+  if (!siliconflowKey.value) {
+    siliconflowTestResult.value = { ok: false, msg: '请先填写 API Key' }
+    return
+  }
+  testingSiliconflow.value = true
+  siliconflowTestResult.value = null
+  try {
+    const resp = await request.post('/admin/configs/test', {
+      provider: 'siliconflow',
+      api_key: siliconflowKey.value,
+      base_url: siliconflowUrl.value,
+    }) as any
+    siliconflowTestResult.value = { ok: true, msg: resp.message || '连接成功' }
+  } catch (e: any) {
+    const msg = e.response?.data?.detail || '连接失败'
+    siliconflowTestResult.value = { ok: false, msg }
+  } finally {
+    testingSiliconflow.value = false
+  }
+}
+
+// 测试火山引擎连接
+const testVolcengine = async () => {
+  if (!volcengineKey.value) {
+    volcengineTestResult.value = { ok: false, msg: '请先填写 API Key' }
+    return
+  }
+  testingVolcengine.value = true
+  volcengineTestResult.value = null
+  try {
+    const resp = await request.post('/admin/configs/test', {
+      provider: 'volcengine',
+      api_key: volcengineKey.value,
+      base_url: volcengineUrl.value,
+    }) as any
+    volcengineTestResult.value = { ok: true, msg: resp.message || '连接成功' }
+  } catch (e: any) {
+    const msg = e.response?.data?.detail || '连接失败'
+    volcengineTestResult.value = { ok: false, msg }
+  } finally {
+    testingVolcengine.value = false
+  }
+}
+
+onMounted(loadConfigs)
+</script>
+
+<style scoped lang="scss">
+.section-card {
+  background: #fff;
+  border-radius: 10px;
+  padding: 24px;
+  margin-bottom: 20px;
+  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.05);
+}
+
+.section-title {
+  font-size: 16px;
+  font-weight: 600;
+  color: #1d1e2c;
+  margin: 0 0 4px;
+}
+
+.card-header {
+  margin-bottom: 20px;
+
+  .card-title-row {
+    display: flex;
+    align-items: center;
+    gap: 12px;
+  }
+
+  .card-desc {
+    font-size: 13px;
+    color: #999;
+    margin: 6px 0 0;
+  }
+}
+
+// 模型切换
+.model-switch {
+  display: flex;
+  gap: 20px;
+  margin-top: 16px;
+}
+
+.model-option {
+  flex: 1;
+  position: relative;
+  border: 2px solid #e8e8e8;
+  border-radius: 12px;
+  padding: 24px;
+  cursor: pointer;
+  transition: all 0.25s;
+  text-align: center;
+
+  &:hover {
+    border-color: #a8d5ba;
+    box-shadow: 0 2px 12px rgba(91, 126, 107, 0.1);
+  }
+
+  &.active {
+    border-color: #5B7E6B;
+    background: linear-gradient(135deg, #f0f7f3 0%, #fff 100%);
+    box-shadow: 0 4px 16px rgba(91, 126, 107, 0.15);
+
+    .model-badge {
+      background: #5B7E6B;
+      color: #fff;
+    }
+  }
+
+  .model-badge {
+    position: absolute;
+    top: -10px;
+    left: 16px;
+    background: #ddd;
+    color: #666;
+    font-size: 11px;
+    padding: 2px 10px;
+    border-radius: 10px;
+    font-weight: 500;
+  }
+
+  .model-name {
+    font-size: 15px;
+    font-weight: 600;
+    color: #333;
+    margin-bottom: 8px;
+  }
+
+  .model-price {
+    font-size: 22px;
+    font-weight: 700;
+    color: #5B7E6B;
+    margin-bottom: 6px;
+  }
+
+  .model-tag {
+    font-size: 12px;
+    color: #999;
+  }
+}
+
+// 配置表单
+.config-form {
+  margin-top: 16px;
+  max-width: 600px;
+}
+
+.form-tip {
+  font-size: 12px;
+  color: #999;
+  margin-left: 12px;
+}
+
+// 测试结果
+.test-result {
+  margin-left: 12px;
+  font-size: 13px;
+
+  &.success { color: #67c23a; }
+  &.fail { color: #f56c6c; }
+}
+
+// 保存栏
+.save-bar {
+  text-align: center;
+  padding: 20px 0;
+}
+</style>
--- a/frontend/src/views/admin/Dashboard.vue
+++ b/frontend/src/views/admin/Dashboard.vue
@@ -0,0 +1,75 @@
+<template>
+  <div class="dashboard">
+    <div class="stats-grid">
+      <div class="stat-card">
+        <div class="stat-value">{{ stats.total_users }}</div>
+        <div class="stat-label">用户总数</div>
+      </div>
+      <div class="stat-card">
+        <div class="stat-value">{{ stats.total_designs }}</div>
+        <div class="stat-label">设计总数</div>
+      </div>
+      <div class="stat-card">
+        <div class="stat-value">{{ stats.total_categories }}</div>
+        <div class="stat-label">品类数量</div>
+      </div>
+      <div class="stat-card">
+        <div class="stat-value">{{ stats.today_designs }}</div>
+        <div class="stat-label">今日新增设计</div>
+      </div>
+      <div class="stat-card">
+        <div class="stat-value">{{ stats.today_users }}</div>
+        <div class="stat-label">今日新增用户</div>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref, onMounted } from 'vue'
+import { getDashboard } from '@/api/admin'
+
+const stats = ref({
+  total_users: 0,
+  total_designs: 0,
+  total_categories: 0,
+  today_designs: 0,
+  today_users: 0,
+})
+
+onMounted(async () => {
+  try {
+    const data = await getDashboard()
+    stats.value = data as any
+  } catch (e) {
+    console.error('获取仪表盘数据失败', e)
+  }
+})
+</script>
+
+<style scoped lang="scss">
+.stats-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
+  gap: 20px;
+}
+
+.stat-card {
+  background: #fff;
+  border-radius: 8px;
+  padding: 24px;
+  text-align: center;
+  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
+
+  .stat-value {
+    font-size: 36px;
+    font-weight: 700;
+    color: #5B7E6B;
+    margin-bottom: 8px;
+  }
+  .stat-label {
+    font-size: 14px;
+    color: #999;
+  }
+}
+</style>
--- a/frontend/src/views/admin/DesignManage.vue
+++ b/frontend/src/views/admin/DesignManage.vue
@@ -0,0 +1,109 @@
+<template>
+  <div class="design-manage">
+    <div class="page-actions">
+      <el-select v-model="statusFilter" placeholder="状态筛选" clearable style="width: 140px" @change="loadDesigns">
+        <el-option label="生成中" value="generating" />
+        <el-option label="已完成" value="completed" />
+        <el-option label="失败" value="failed" />
+      </el-select>
+      <el-button type="primary" @click="loadDesigns">刷新</el-button>
+    </div>
+
+    <el-table :data="designs" stripe v-loading="loading" style="width: 100%">
+      <el-table-column prop="id" label="ID" width="80" />
+      <el-table-column prop="username" label="用户" width="120">
+        <template #default="{ row }">{{ row.username || '-' }}</template>
+      </el-table-column>
+      <el-table-column prop="category_name" label="品类" width="100" />
+      <el-table-column prop="sub_type_name" label="子类型" width="100">
+        <template #default="{ row }">{{ row.sub_type_name || '-' }}</template>
+      </el-table-column>
+      <el-table-column prop="color_name" label="颜色" width="100">
+        <template #default="{ row }">{{ row.color_name || '-' }}</template>
+      </el-table-column>
+      <el-table-column prop="prompt" label="描述" show-overflow-tooltip />
+      <el-table-column prop="image_url" label="图片" width="80">
+        <template #default="{ row }">
+          <el-image v-if="row.image_url" :src="row.image_url" :preview-src-list="[row.image_url]"
+            style="width: 40px; height: 40px; border-radius: 4px" fit="cover" />
+          <span v-else>-</span>
+        </template>
+      </el-table-column>
+      <el-table-column prop="status" label="状态" width="100">
+        <template #default="{ row }">
+          <el-tag :type="statusType(row.status)" size="small">{{ statusLabel(row.status) }}</el-tag>
+        </template>
+      </el-table-column>
+      <el-table-column prop="created_at" label="创建时间" width="180">
+        <template #default="{ row }">{{ formatTime(row.created_at) }}</template>
+      </el-table-column>
+      <el-table-column label="操作" fixed="right" width="100">
+        <template #default="{ row }">
+          <el-button size="small" type="danger" @click="handleDelete(row)">删除</el-button>
+        </template>
+      </el-table-column>
+    </el-table>
+
+    <el-pagination
+      v-if="total > pageSize"
+      :current-page="page"
+      :page-size="pageSize"
+      :total="total"
+      layout="prev, pager, next"
+      @current-change="handlePageChange"
+      style="margin-top: 20px; justify-content: center"
+    />
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref, onMounted } from 'vue'
+import { ElMessage, ElMessageBox } from 'element-plus'
+import { getAdminDesigns, adminDeleteDesign } from '@/api/admin'
+
+const designs = ref<any[]>([])
+const loading = ref(false)
+const statusFilter = ref('')
+const page = ref(1)
+const pageSize = ref(20)
+const total = ref(0)
+
+const formatTime = (t: string) => t ? new Date(t).toLocaleString('zh-CN') : '-'
+const statusLabel = (s: string) => ({ generating: '生成中', completed: '已完成', failed: '失败' }[s] || s)
+const statusType = (s: string) => ({ generating: 'warning', completed: 'success', failed: 'danger' }[s] || 'info') as any
+
+const loadDesigns = async () => {
+  loading.value = true
+  try {
+    const data = await getAdminDesigns({
+      page: page.value,
+      page_size: pageSize.value,
+      status: statusFilter.value || undefined
+    }) as any
+    designs.value = data.items || []
+    total.value = data.total || 0
+  } catch (e) { console.error(e) }
+  finally { loading.value = false }
+}
+
+const handlePageChange = (p: number) => { page.value = p; loadDesigns() }
+
+const handleDelete = async (design: any) => {
+  try {
+    await ElMessageBox.confirm(`确定要删除设计 #${design.id}？`, '确认', { type: 'warning' })
+    await adminDeleteDesign(design.id)
+    ElMessage.success('设计已删除')
+    await loadDesigns()
+  } catch (e: any) { if (e !== 'cancel') console.error(e) }
+}
+
+onMounted(loadDesigns)
+</script>
+
+<style scoped lang="scss">
+.page-actions {
+  margin-bottom: 20px;
+  display: flex;
+  gap: 12px;
+}
+</style>
--- a/frontend/src/views/admin/PromptManage.vue
+++ b/frontend/src/views/admin/PromptManage.vue
@@ -0,0 +1,363 @@
+<template>
+  <div class="prompt-manage">
+    <!-- 提示词模板区 -->
+    <el-card class="section-card" shadow="never">
+      <template #header>
+        <div class="card-header">
+          <span>提示词模板</span>
+          <el-tag type="info" size="small">修改后实时生效</el-tag>
+        </div>
+      </template>
+      <div v-loading="templateLoading">
+        <div v-for="tpl in templates" :key="tpl.id" class="template-item">
+          <div class="template-header">
+            <el-tag>{{ tpl.template_key }}</el-tag>
+            <span class="template-desc">{{ tpl.description }}</span>
+          </div>
+          <el-input
+            v-model="tpl.template_value"
+            type="textarea"
+            :autosize="{ minRows: 2, maxRows: 6 }"
+            @blur="saveTemplate(tpl)"
+          />
+        </div>
+        <el-empty v-if="!templateLoading && templates.length === 0" description="暂无模板" />
+      </div>
+    </el-card>
+
+    <!-- 映射管理区 -->
+    <el-card class="section-card" shadow="never" style="margin-top: 16px">
+      <template #header>
+        <div class="card-header">
+          <span>中英映射配置</span>
+          <div class="header-actions">
+            <el-button type="primary" size="small" @click="openAddMapping">新增映射</el-button>
+            <el-button size="small" @click="openPreview">预览提示词</el-button>
+          </div>
+        </div>
+      </template>
+
+      <!-- 类型筛选标签 -->
+      <div class="type-tabs">
+        <el-tag
+          v-for="t in mappingTypes"
+          :key="t.type"
+          :type="currentType === t.type ? '' : 'info'"
+          :effect="currentType === t.type ? 'dark' : 'plain'"
+          class="type-tag"
+          @click="switchType(t.type)"
+        >
+          {{ t.label }} ({{ t.count }})
+        </el-tag>
+        <el-tag
+          :type="!currentType ? '' : 'info'"
+          :effect="!currentType ? 'dark' : 'plain'"
+          class="type-tag"
+          @click="switchType('')"
+        >
+          全部
+        </el-tag>
+      </div>
+
+      <!-- 映射表格 -->
+      <el-table :data="mappings" v-loading="mappingLoading" stripe style="margin-top: 12px" max-height="500">
+        <el-table-column prop="mapping_type" label="类型" width="100">
+          <template #default="{ row }">
+            <el-tag size="small" type="info">{{ typeLabels[row.mapping_type] || row.mapping_type }}</el-tag>
+          </template>
+        </el-table-column>
+        <el-table-column prop="cn_key" label="中文" width="120" />
+        <el-table-column prop="en_value" label="英文描述" show-overflow-tooltip />
+        <el-table-column prop="sort_order" label="排序" width="70" />
+        <el-table-column label="操作" width="140" fixed="right">
+          <template #default="{ row }">
+            <el-button size="small" link type="primary" @click="openEditMapping(row)">编辑</el-button>
+            <el-popconfirm title="确认删除？" @confirm="handleDeleteMapping(row.id)">
+              <template #reference>
+                <el-button size="small" link type="danger">删除</el-button>
+              </template>
+            </el-popconfirm>
+          </template>
+        </el-table-column>
+      </el-table>
+    </el-card>
+
+    <!-- 新增/编辑映射弹窗 -->
+    <el-dialog v-model="mappingDialogVisible" :title="editingMapping ? '编辑映射' : '新增映射'" width="500px">
+      <el-form :model="mappingForm" label-width="80px">
+        <el-form-item label="映射类型">
+          <el-select v-model="mappingForm.mapping_type" :disabled="!!editingMapping" style="width: 100%">
+            <el-option v-for="t in allTypes" :key="t.value" :label="t.label" :value="t.value" />
+          </el-select>
+        </el-form-item>
+        <el-form-item label="中文">
+          <el-input v-model="mappingForm.cn_key" placeholder="如：白玉" />
+        </el-form-item>
+        <el-form-item label="英文描述">
+          <el-input v-model="mappingForm.en_value" type="textarea" :rows="3" placeholder="如：pure white nephrite jade..." />
+        </el-form-item>
+        <el-form-item label="排序">
+          <el-input-number v-model="mappingForm.sort_order" :min="0" :max="999" />
+        </el-form-item>
+      </el-form>
+      <template #footer>
+        <el-button @click="mappingDialogVisible = false">取消</el-button>
+        <el-button type="primary" @click="handleSaveMapping" :loading="saving">保存</el-button>
+      </template>
+    </el-dialog>
+
+    <!-- 预览弹窗 -->
+    <el-dialog v-model="previewVisible" title="提示词预览" width="650px">
+      <el-form :model="previewParams" label-width="80px" size="small">
+        <el-row :gutter="12">
+          <el-col :span="12">
+            <el-form-item label="品类">
+              <el-input v-model="previewParams.category_name" placeholder="牌子" />
+            </el-form-item>
+          </el-col>
+          <el-col :span="12">
+            <el-form-item label="视角">
+              <el-input v-model="previewParams.view_name" placeholder="效果图" />
+            </el-form-item>
+          </el-col>
+          <el-col :span="12">
+            <el-form-item label="颜色">
+              <el-input v-model="previewParams.color_name" placeholder="白玉" />
+            </el-form-item>
+          </el-col>
+          <el-col :span="12">
+            <el-form-item label="子类型">
+              <el-input v-model="previewParams.sub_type_name" placeholder="平安扣" />
+            </el-form-item>
+          </el-col>
+          <el-col :span="12">
+            <el-form-item label="工艺">
+              <el-input v-model="previewParams.carving_technique" placeholder="浮雕" />
+            </el-form-item>
+          </el-col>
+          <el-col :span="12">
+            <el-form-item label="风格">
+              <el-input v-model="previewParams.design_style" placeholder="古典" />
+            </el-form-item>
+          </el-col>
+        </el-row>
+      </el-form>
+      <el-button type="primary" size="small" @click="handlePreview" :loading="previewing" style="margin-bottom: 12px">
+        生成预览
+      </el-button>
+      <div v-if="previewResult" class="preview-result">
+        <div class="preview-label">生成的英文提示词：</div>
+        <div class="preview-text">{{ previewResult }}</div>
+      </div>
+    </el-dialog>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref, onMounted } from 'vue'
+import { ElMessage } from 'element-plus'
+import {
+  getPromptTemplates, updatePromptTemplate,
+  getPromptMappings, getMappingTypes,
+  createPromptMapping, updatePromptMapping, deletePromptMapping,
+  previewPrompt
+} from '@/api/admin'
+
+interface Template {
+  id: number
+  template_key: string
+  template_value: string
+  description: string
+}
+interface MappingType {
+  type: string
+  count: number
+  label: string
+}
+interface Mapping {
+  id: number
+  mapping_type: string
+  cn_key: string
+  en_value: string
+  sort_order: number
+}
+
+const typeLabels: Record<string, string> = {
+  category: '品类', color: '颜色', view: '视角',
+  carving: '雕刻工艺', style: '设计风格', motif: '题材纹样',
+  finish: '表面处理', scene: '用途场景', sub_type: '子类型'
+}
+
+const allTypes = [
+  { value: 'category', label: '品类' },
+  { value: 'color', label: '颜色' },
+  { value: 'sub_type', label: '子类型' },
+  { value: 'view', label: '视角' },
+  { value: 'carving', label: '雕刻工艺' },
+  { value: 'style', label: '设计风格' },
+  { value: 'motif', label: '题材纹样' },
+  { value: 'finish', label: '表面处理' },
+  { value: 'scene', label: '用途场景' },
+]
+
+// 模板
+const templates = ref<Template[]>([])
+const templateLoading = ref(false)
+
+// 映射
+const mappingTypes = ref<MappingType[]>([])
+const mappings = ref<Mapping[]>([])
+const mappingLoading = ref(false)
+const currentType = ref('')
+
+// 弹窗
+const mappingDialogVisible = ref(false)
+const editingMapping = ref<Mapping | null>(null)
+const mappingForm = ref({ mapping_type: 'category', cn_key: '', en_value: '', sort_order: 0 })
+const saving = ref(false)
+
+// 预览
+const previewVisible = ref(false)
+const previewParams = ref<Record<string, string>>({ category_name: '牌子', view_name: '效果图' })
+const previewResult = ref('')
+const previewing = ref(false)
+
+async function loadTemplates() {
+  templateLoading.value = true
+  try {
+    const res = await getPromptTemplates()
+    templates.value = res.data
+  } catch { /* ignore */ } finally { templateLoading.value = false }
+}
+
+async function saveTemplate(tpl: Template) {
+  try {
+    await updatePromptTemplate(tpl.id, { template_value: tpl.template_value, description: tpl.description })
+    ElMessage.success('模板已保存')
+  } catch { ElMessage.error('保存失败') }
+}
+
+async function loadMappingTypes() {
+  try {
+    const res = await getMappingTypes()
+    mappingTypes.value = res.data
+  } catch { /* ignore */ }
+}
+
+async function loadMappings() {
+  mappingLoading.value = true
+  try {
+    const res = await getPromptMappings(currentType.value || undefined)
+    mappings.value = res.data
+  } catch { /* ignore */ } finally { mappingLoading.value = false }
+}
+
+function switchType(type: string) {
+  currentType.value = type
+  loadMappings()
+}
+
+function openAddMapping() {
+  editingMapping.value = null
+  mappingForm.value = { mapping_type: currentType.value || 'category', cn_key: '', en_value: '', sort_order: 0 }
+  mappingDialogVisible.value = true
+}
+
+function openEditMapping(row: Mapping) {
+  editingMapping.value = row
+  mappingForm.value = { mapping_type: row.mapping_type, cn_key: row.cn_key, en_value: row.en_value, sort_order: row.sort_order }
+  mappingDialogVisible.value = true
+}
+
+async function handleSaveMapping() {
+  if (!mappingForm.value.cn_key || !mappingForm.value.en_value) {
+    ElMessage.warning('请填写完整')
+    return
+  }
+  saving.value = true
+  try {
+    if (editingMapping.value) {
+      await updatePromptMapping(editingMapping.value.id, {
+        cn_key: mappingForm.value.cn_key,
+        en_value: mappingForm.value.en_value,
+        sort_order: mappingForm.value.sort_order
+      })
+    } else {
+      await createPromptMapping(mappingForm.value)
+    }
+    ElMessage.success('保存成功')
+    mappingDialogVisible.value = false
+    loadMappings()
+    loadMappingTypes()
+  } catch (e: any) {
+    ElMessage.error(e?.response?.data?.detail || '保存失败')
+  } finally { saving.value = false }
+}
+
+async function handleDeleteMapping(id: number) {
+  try {
+    await deletePromptMapping(id)
+    ElMessage.success('已删除')
+    loadMappings()
+    loadMappingTypes()
+  } catch { ElMessage.error('删除失败') }
+}
+
+function openPreview() {
+  previewResult.value = ''
+  previewVisible.value = true
+}
+
+async function handlePreview() {
+  previewing.value = true
+  try {
+    const res = await previewPrompt(previewParams.value)
+    previewResult.value = res.data.prompt
+  } catch (e: any) {
+    ElMessage.error(e?.response?.data?.detail || '预览失败')
+  } finally { previewing.value = false }
+}
+
+onMounted(() => {
+  loadTemplates()
+  loadMappingTypes()
+  loadMappings()
+})
+</script>
+
+<style scoped lang="scss">
+.section-card {
+  .card-header {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+  }
+  .header-actions {
+    display: flex;
+    gap: 8px;
+  }
+}
+.template-item {
+  margin-bottom: 16px;
+  .template-header {
+    display: flex;
+    align-items: center;
+    gap: 8px;
+    margin-bottom: 6px;
+    .template-desc { color: #999; font-size: 13px; }
+  }
+}
+.type-tabs {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 8px;
+  .type-tag { cursor: pointer; }
+}
+.preview-result {
+  background: #f5f7fa;
+  border-radius: 8px;
+  padding: 16px;
+  .preview-label { color: #666; font-size: 13px; margin-bottom: 8px; }
+  .preview-text { font-family: monospace; font-size: 13px; line-height: 1.6; word-break: break-all; color: #333; }
+}
+</style>
--- a/frontend/src/views/admin/UserManage.vue
+++ b/frontend/src/views/admin/UserManage.vue
@@ -0,0 +1,129 @@
+<template>
+  <div class="user-manage">
+    <div class="page-actions">
+      <el-input v-model="keyword" placeholder="搜索用户名/昵称" clearable style="width: 260px" @keyup.enter="loadUsers" />
+      <el-button type="primary" @click="loadUsers">搜索</el-button>
+    </div>
+
+    <el-table :data="users" stripe v-loading="loading" style="width: 100%">
+      <el-table-column prop="id" label="ID" width="80" />
+      <el-table-column prop="username" label="用户名" width="150" />
+      <el-table-column prop="nickname" label="昵称" width="150">
+        <template #default="{ row }">{{ row.nickname || '-' }}</template>
+      </el-table-column>
+      <el-table-column prop="phone" label="手机号" width="140">
+        <template #default="{ row }">{{ row.phone || '-' }}</template>
+      </el-table-column>
+      <el-table-column prop="design_count" label="设计数" width="100" />
+      <el-table-column prop="is_admin" label="管理员" width="100">
+        <template #default="{ row }">
+          <el-tag :type="row.is_admin ? 'success' : 'info'" size="small">
+            {{ row.is_admin ? '是' : '否' }}
+          </el-tag>
+        </template>
+      </el-table-column>
+      <el-table-column prop="created_at" label="注册时间" width="180">
+        <template #default="{ row }">{{ formatTime(row.created_at) }}</template>
+      </el-table-column>
+      <el-table-column label="操作" fixed="right" width="200">
+        <template #default="{ row }">
+          <el-button size="small" :type="row.is_admin ? 'warning' : 'primary'" @click="toggleAdmin(row)">
+            {{ row.is_admin ? '取消管理员' : '设为管理员' }}
+          </el-button>
+          <el-button size="small" type="danger" @click="handleDelete(row)">删除</el-button>
+        </template>
+      </el-table-column>
+    </el-table>
+
+    <el-pagination
+      v-if="total > pageSize"
+      :current-page="page"
+      :page-size="pageSize"
+      :total="total"
+      layout="prev, pager, next"
+      @current-change="handlePageChange"
+      style="margin-top: 20px; justify-content: center"
+    />
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref, onMounted } from 'vue'
+import { ElMessage, ElMessageBox } from 'element-plus'
+import { getUsers, setUserAdmin, deleteUser } from '@/api/admin'
+
+interface AdminUser {
+  id: number
+  username: string
+  nickname: string | null
+  phone: string | null
+  is_admin: boolean
+  created_at: string
+  design_count: number
+}
+
+const users = ref<AdminUser[]>([])
+const loading = ref(false)
+const keyword = ref('')
+const page = ref(1)
+const pageSize = ref(20)
+const total = ref(0)
+
+const formatTime = (t: string) => {
+  if (!t) return '-'
+  return new Date(t).toLocaleString('zh-CN')
+}
+
+const loadUsers = async () => {
+  loading.value = true
+  try {
+    const data = await getUsers({ page: page.value, page_size: pageSize.value, keyword: keyword.value || undefined }) as any
+    users.value = data.items || []
+    total.value = data.total || 0
+  } catch (e) {
+    console.error('加载用户列表失败', e)
+  } finally {
+    loading.value = false
+  }
+}
+
+const handlePageChange = (p: number) => {
+  page.value = p
+  loadUsers()
+}
+
+const toggleAdmin = async (user: AdminUser) => {
+  try {
+    const newStatus = !user.is_admin
+    await ElMessageBox.confirm(
+      `确定要${newStatus ? '设为管理员' : '取消管理员'}：${user.username}？`, '确认'
+    )
+    await setUserAdmin(user.id, newStatus)
+    ElMessage.success('操作成功')
+    await loadUsers()
+  } catch (e: any) {
+    if (e !== 'cancel') console.error(e)
+  }
+}
+
+const handleDelete = async (user: AdminUser) => {
+  try {
+    await ElMessageBox.confirm(`确定要删除用户 ${user.username}？此操作不可恢复！`, '警告', { type: 'warning' })
+    await deleteUser(user.id)
+    ElMessage.success('用户已删除')
+    await loadUsers()
+  } catch (e: any) {
+    if (e !== 'cancel') console.error(e)
+  }
+}
+
+onMounted(loadUsers)
+</script>
+
+<style scoped lang="scss">
+.page-actions {
+  margin-bottom: 20px;
+  display: flex;
+  gap: 12px;
+}
+</style>
--- a/init_data.sql
+++ b/init_data.sql
@@ -313,3 +313,44 @@ INSERT INTO colors (category_id, name, hex_code, sort_order) VALUES
 (12, '墨玉', '#2C2C2C', 8),
 (12, '藕粉', '#E8B4B8', 9),
 (12, '烟紫', '#8B7D9B', 10);
+
+-- ========================================
+-- design_images 表（AI 多视角设计图）
+-- ========================================
+CREATE TABLE IF NOT EXISTS design_images (
+  id BIGINT AUTO_INCREMENT PRIMARY KEY COMMENT '图片ID',
+  design_id BIGINT NOT NULL COMMENT '关联设计ID',
+  view_name VARCHAR(20) NOT NULL COMMENT '视角名称: 效果图/正面图/侧面图/背面图',
+  image_url VARCHAR(255) DEFAULT NULL COMMENT '图片URL路径',
+  model_used VARCHAR(50) DEFAULT NULL COMMENT '使用的AI模型: flux-dev/seedream-4.5',
+  prompt_used TEXT DEFAULT NULL COMMENT '实际使用的英文prompt',
+  sort_order INT DEFAULT 0 COMMENT '排序',
+  created_at DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+  CONSTRAINT fk_design_images_design FOREIGN KEY (design_id) REFERENCES designs(id) ON DELETE CASCADE,
+  INDEX idx_design_images_design_id (design_id)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='AI多视角设计图';
+
+-- ========================================
+-- system_configs 表（系统配置）
+-- ========================================
+CREATE TABLE IF NOT EXISTS system_configs (
+  id BIGINT AUTO_INCREMENT PRIMARY KEY COMMENT '配置ID',
+  config_key VARCHAR(100) NOT NULL UNIQUE COMMENT '配置键',
+  config_value TEXT COMMENT '配置值',
+  description VARCHAR(255) COMMENT '配置说明',
+  config_group VARCHAR(50) NOT NULL DEFAULT 'general' COMMENT '配置分组: ai/general',
+  is_secret CHAR(1) NOT NULL DEFAULT 'N' COMMENT '是否敏感信息(Y/N)',
+  updated_at DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间'
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='系统配置表';
+
+-- 插入默认 AI 配置项
+INSERT IGNORE INTO system_configs (config_key, config_value, description, config_group, is_secret) VALUES
+('SILICONFLOW_API_KEY', '', 'SiliconFlow API Key', 'ai', 'Y'),
+('SILICONFLOW_BASE_URL', 'https://api.siliconflow.cn/v1', 'SiliconFlow 接口地址', 'ai', 'N'),
+('VOLCENGINE_API_KEY', '', '火山引擎 API Key', 'ai', 'Y'),
+('VOLCENGINE_BASE_URL', 'https://ark.cn-beijing.volces.com/api/v3', '火山引擎接口地址', 'ai', 'N'),
+('AI_IMAGE_MODEL', 'flux-dev', '默认AI生图模型 (flux-dev / seedream-4.5)', 'ai', 'N'),
+('AI_IMAGE_SIZE', '1024', 'AI生图默认尺寸', 'ai', 'N');
+
+-- users 表添加 is_admin 字段（如果不存在）
+-- ALTER TABLE users ADD COLUMN is_admin TINYINT(1) NOT NULL DEFAULT 0 COMMENT '是否管理员' AFTER avatar;