diff --git a/backend/app/agent_framework/agents/deai_agent.py b/backend/app/agent_framework/agents/deai_agent.py
index d5740a0..62a6243 100644
--- a/backend/app/agent_framework/agents/deai_agent.py
+++ b/backend/app/agent_framework/agents/deai_agent.py
@@ -3,6 +3,7 @@
 import logging
 import time
 from datetime import datetime, timezone
+from typing import Optional
 
 from app.agent_framework.base import BaseAgent
 from app.agent_framework.prompts import DEAI_TEMPLATE
@@ -14,6 +15,8 @@ from app.agent_framework.protocol import (
     TaskStatus,
 )
 from app.services.llm import LLMFactory, LLMError
+from app.services.distribution.platform_rules import PLATFORM_RULES, rule_engine
+from app.services.distribution.rule_service import platform_rule_service
 
 logger = logging.getLogger(__name__)
 
@@ -23,13 +26,19 @@ class DeAIAgent(BaseAgent):
 
     支持的任务类型:
     - deai_process: 对内容进行去AI化处理
+
+    input_data 字段:
+    - content: str (必填，待处理的文章内容)
+    - platform: str (可选，目标平台ID，如 zhihu, wechat 等)
+    - style: str (可选，目标风格)
+    - preserve_structure: bool (可选，是否保留原有结构)
     """
 
     def __init__(self):
         super().__init__(
             name="deai_agent",
             agent_type=AgentType.DEAI_AGENT,
-            version="1.0.0",
+            version="1.1.0",
         )
 
     def get_capabilities(self) -> AgentCapability:
@@ -104,7 +113,8 @@ class DeAIAgent(BaseAgent):
 
         input_data 字段:
         - content: str (必填，待处理的文章内容)
-        - style: str (可选，目标风格: 口语化/叙事化/评论风格)
+        - platform: str (可选，目标平台ID)
+        - style: str (可选，目标风格)
         - preserve_structure: bool (可选，是否保留原有结构)
         """
         input_data = task.input_data
@@ -112,6 +122,8 @@ class DeAIAgent(BaseAgent):
         if not content:
             raise ValueError("input_data必须包含非空的'content'字段")
 
+        platform_id = input_data.get("platform", "")
+
         # 上报进度：开始
         await self.report_progress(
             task_id=task.task_id,
@@ -119,11 +131,20 @@ class DeAIAgent(BaseAgent):
             message="开始去AI化处理...",
         )
 
+        # 获取平台特定配置
+        platform_config = self._get_platform_config(platform_id)
+
+        # 构建变量
         variables = {
             "original_content": content,
             "target_style": input_data.get("style", "自然流畅"),
             "preserve_structure": "是" if input_data.get("preserve_structure", True) else "否",
+            "platform_info": platform_config.get("platform_info", "通用"),
+            "ai_sensitivity": platform_config.get("ai_sensitivity", ""),
+            "banned_patterns": platform_config.get("banned_patterns", ""),
+            "safe_patterns": platform_config.get("safe_patterns", ""),
         }
+
         messages = DEAI_TEMPLATE.render(variables)
 
         # 上报进度：调用LLM
@@ -140,6 +161,13 @@ class DeAIAgent(BaseAgent):
             max_tokens=len(content) * 3,
         )
 
+        # 检测处理后的AI模式
+        detected_patterns = []
+        if platform_id:
+            detected_patterns = platform_rule_service.detect_ai_patterns(
+                response.content, platform_id
+            )
+
         # 上报进度：完成
         await self.report_progress(
             task_id=task.task_id,
@@ -152,4 +180,42 @@ class DeAIAgent(BaseAgent):
             "original_word_count": len(content),
             "processed_word_count": len(response.content),
             "usage": response.usage,
+            "platform_id": platform_id,
+            "detected_ai_patterns": detected_patterns,
         }
+
+    def _get_platform_config(self, platform_id: str) -> dict:
+        """获取平台特定配置
+
+        Args:
+            platform_id: 平台标识
+
+        Returns:
+            包含平台配置的字典
+        """
+        if not platform_id or platform_id not in PLATFORM_RULES:
+            return {
+                "platform_info": "通用",
+                "ai_sensitivity": "中",
+                "banned_patterns": "总之、综上所述、首先其次最后等",
+                "safe_patterns": "根据研究表明、事实上、说实话",
+            }
+
+        rules = PLATFORM_RULES[platform_id]
+        ai_config = rules.get("ai_sensitivity", {})
+
+        platform_name = rules.get("name", platform_id)
+        detection_level = ai_config.get("detection_level", "medium")
+        banned = ai_config.get("banned_patterns", [])
+        safe = ai_config.get("safe_patterns", [])
+
+        return {
+            "platform_info": f"{platform_name} (检测级别: {detection_level})",
+            "ai_sensitivity": detection_level,
+            "banned_patterns": "、".join(banned[:10]) if banned else "无",
+            "safe_patterns": "、".join(safe[:5]) if safe else "无",
+        }
+
+
+# 导出单例
+deai_agent = DeAIAgent()
diff --git a/backend/app/agent_framework/prompts/deai_agent.py b/backend/app/agent_framework/prompts/deai_agent.py
index 4ae4e4e..263400c 100644
--- a/backend/app/agent_framework/prompts/deai_agent.py
+++ b/backend/app/agent_framework/prompts/deai_agent.py
@@ -12,18 +12,30 @@ DEAI_TEMPLATE = PromptTemplate(
 ${original_content}
 
 ## 目标风格参考
-${style_reference}
+${target_style}
 
 ## 目标平台
-${target_platform}""",
+${platform_info}
+
+## AI检测敏感度
+${ai_sensitivity}
+
+## 需要消除的AI写作特征 (禁用)
+${banned_patterns}
+
+## 推荐使用的人味表达 (安全模式)
+${safe_patterns}
+
+## 结构保留
+保留原有结构: ${preserve_structure}""",
 
         instructions="""请将以上原始文章进行去AI化改写，使其读起来像真人撰写的自然文章。
 
 改写策略（按优先级排序）：
 
 1. 消除AI典型语言特征：
-   - 禁用模板化过渡词：「总之」「综上所述」「值得注意的是」「让我们」「总而言之」「不可否认」「毋庸置疑」
-   - 禁用空洞修饰词：「至关重要」「不可或缺」「举足轻重」「蓬勃发展」「日新月异」
+   - 禁用模板化过渡词：「总之」「综上所述」「值得注意的是」「让我们」「总而言之」「不可否认」「毋庸置疑」「首先」「其次」「最后」「最后但同样重要」「换句话说」「也就是说」「更重要的是」「可以说」
+   - 禁用空洞修饰词：「至关重要」「不可或缺」「举足轻重」「蓬勃发展」「日新月异」「深远影响」「全面提升」「显著成效」「重大突破」「核心要素」
    - 禁用对称式排比句（AI最爱用三段式排比）
 
 2. 增加不规则节奏：
@@ -44,7 +56,12 @@ ${target_platform}""",
 5. 调整叙事结构：
    - 打破AI的「总-分-总」结构
    - 允许跑题式的个人联想（但要收回来）
-   - 可以从一个具体的场景或故事开头""",
+   - 可以从一个具体的场景或故事开头
+
+6. 针对平台的特殊要求：
+   - 高敏感度平台（知乎、百家号）：必须彻底消除AI痕迹，使用更多真实案例
+   - 中敏感度平台（微信公众号、B站）：适度改写，保持专业感
+   - 低敏感度平台（微博、小红书）：可以保留部分AI风格，重点在优化表达""",
 
         constraints="""## 约束条件
 - 不改变原文的核心事实和数据，所有数字、专有名词、引用必须保留
diff --git a/backend/app/api/platform_rules.py b/backend/app/api/platform_rules.py
new file mode 100644
index 0000000..2cda6ec
--- /dev/null
+++ b/backend/app/api/platform_rules.py
@@ -0,0 +1,384 @@
+"""平台规则管理 API 路由"""
+
+import logging
+from datetime import datetime
+from typing import Optional
+
+from fastapi import APIRouter, Depends, HTTPException, Query, status
+from pydantic import ValidationError
+
+from app.api.deps import get_current_user
+from app.models.user import User
+from app.services.distribution.platform_rules import (
+    PLATFORM_RULES,
+    rule_engine,
+)
+from app.services.distribution.rule_service import platform_rule_service
+from app.schemas.platform_rule import (
+    ContentValidationIssue,
+    ContentValidationResponse,
+    ContentValidateRequest,
+    DeAIContentRequest,
+    DeAIContentResponse,
+    PlatformBrief,
+    PlatformDetailResponse,
+    PlatformListResponse,
+    PlatformRuleUpdateRequest,
+    PlatformRuleUpdateResponse,
+    RuleChangeHistory,
+    RuleChangeHistoryResponse,
+    RuleDiff,
+    RuleDiffResponse,
+    # 内部 Schema
+    AISensitivity,
+    ContentLengthRule,
+    GEORule,
+    HTMLRule,
+    KeywordDensity,
+    PublishRule,
+    SEORule,
+    SensitiveWordsConfig,
+    StructurePreference,
+    TagRule,
+    TitleRule,
+)
+
+logger = logging.getLogger(__name__)
+
+router = APIRouter(prefix="/api/v1/platforms", tags=["平台规则管理"])
+
+
+def _convert_rule_to_schema(rules: dict) -> dict:
+    """将规则字典转换为 Schema 格式"""
+    if not rules:
+        return {}
+
+    return {
+        "content_length": ContentLengthRule(**rules.get("content_length", {})),
+        "structure_preference": StructurePreference(**rules.get("structure_preference", {})),
+        "title_rules": TitleRule(**rules.get("title_rules", {})),
+        "tag_rules": TagRule(**rules.get("tag_rules", {})),
+        "ai_sensitivity": AISensitivity(**rules.get("ai_sensitivity", {})),
+        "sensitive_words": SensitiveWordsConfig(**rules.get("sensitive_words", {})),
+        "seo_rules": SEORule(**rules.get("seo_rules", {})),
+        "geo_rules": GEORule(**rules.get("geo_rules", {})),
+        "html_rules": HTMLRule(**rules.get("html_rules", {})),
+        "publish_rules": PublishRule(**rules.get("publish_rules", {})),
+    }
+
+
+@router.get("", response_model=PlatformListResponse)
+async def list_platforms(
+    enabled_only: bool = Query(True, description="是否只返回启用的平台"),
+):
+    """获取所有支持平台列表"""
+    platforms_raw = platform_rule_service.get_all_platforms(enabled_only=enabled_only)
+
+    platforms = [
+        PlatformBrief(
+            id=p["id"],
+            name=p["name"],
+            platform_type=p.get("platform_type", ""),
+            priority=p.get("priority", "P2"),
+            enabled=p.get("enabled", True),
+        )
+        for p in platforms_raw
+    ]
+
+    return PlatformListResponse(platforms=platforms, total=len(platforms))
+
+
+@router.get("/{platform_id}", response_model=PlatformDetailResponse)
+async def get_platform_detail(platform_id: str):
+    """获取平台详情
+
+    Args:
+        platform_id: 平台标识 (如 zhihu, wechat, baijiahao 等)
+    """
+    rules = platform_rule_service.get_platform_detail(platform_id)
+    if not rules:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail=f"平台不存在: {platform_id}",
+        )
+
+    # 构建响应
+    converted = _convert_rule_to_schema(rules)
+
+    return PlatformDetailResponse(
+        id=platform_id,
+        name=rules.get("name", ""),
+        platform_type=rules.get("platform_type", ""),
+        priority=rules.get("priority", "P2"),
+        enabled=rules.get("enabled", True),
+        content_style=rules.get("content_style", ""),
+        content_length=converted["content_length"],
+        structure_preference=converted["structure_preference"],
+        title_rules=converted["title_rules"],
+        tag_rules=converted["tag_rules"],
+        ai_sensitivity=converted["ai_sensitivity"],
+        sensitive_words=converted["sensitive_words"],
+        seo_rules=converted["seo_rules"],
+        geo_rules=converted["geo_rules"],
+        html_rules=converted["html_rules"],
+        publish_rules=converted["publish_rules"],
+        best_publish_times=rules.get("best_publish_times", []),
+        best_publish_days=rules.get("best_publish_days", []),
+        max_images=rules.get("max_images", 0),
+    )
+
+
+@router.put("/{platform_id}/rules", response_model=PlatformRuleUpdateResponse)
+async def update_platform_rules(
+    platform_id: str,
+    req: PlatformRuleUpdateRequest,
+    current_user: User = Depends(get_current_user),
+):
+    """更新平台规则
+
+    注意：当前实现更新的是内存中的规则。
+    如需持久化，需要配合数据库和规则变更历史表使用。
+    """
+    if platform_id not in PLATFORM_RULES:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail=f"平台不存在: {platform_id}",
+        )
+
+    # 获取当前规则
+    current_rules = PLATFORM_RULES[platform_id]
+
+    # 构建更新数据
+    update_data = req.model_dump(exclude_unset=True)
+
+    # 更新规则（这里只做演示，实际需要持久化到数据库）
+    for key, value in update_data.items():
+        if value is not None:
+            if key == "enabled":
+                current_rules[key] = value
+            elif isinstance(value, dict):
+                current_rules[key] = {
+                    **current_rules.get(key, {}),
+                    **value,
+                }
+            else:
+                current_rules[key] = value
+
+    logger.info(
+        f"用户 {current_user.id} 更新了平台 {platform_id} 的规则: {list(update_data.keys())}"
+    )
+
+    return PlatformRuleUpdateResponse(
+        success=True,
+        platform_id=platform_id,
+        message=f"规则更新成功",
+        updated_at=datetime.now(),
+    )
+
+
+@router.get("/{platform_id}/rules/diff", response_model=RuleDiffResponse)
+async def compare_rule_changes(
+    platform_id: str,
+    change_id: Optional[int] = Query(None, description="变更记录ID，用于对比历史版本"),
+):
+    """对比规则变更
+
+    Args:
+        platform_id: 平台标识
+        change_id: 变更记录ID（可选）
+    """
+    if platform_id not in PLATFORM_RULES:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail=f"平台不存在: {platform_id}",
+        )
+
+    current_rules = PLATFORM_RULES[platform_id]
+
+    # TODO: 从数据库获取历史版本进行对比
+    # 目前返回空差异
+    return RuleDiffResponse(
+        platform_id=platform_id,
+        platform_name=current_rules.get("name", ""),
+        diffs=[],
+        total_changes=0,
+    )
+
+
+@router.get("/{platform_id}/rules/history", response_model=RuleChangeHistoryResponse)
+async def get_rule_history(
+    platform_id: str,
+    limit: int = Query(20, ge=1, le=100, description="返回记录数"),
+):
+    """获取规则变更历史
+
+    Args:
+        platform_id: 平台标识
+        limit: 返回记录数
+    """
+    if platform_id not in PLATFORM_RULES:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail=f"平台不存在: {platform_id}",
+        )
+
+    # TODO: 从数据库获取历史记录
+    # 目前返回空列表
+    return RuleChangeHistoryResponse(
+        history=[],
+        total=0,
+    )
+
+
+@router.post("/{platform_id}/rules/validate", response_model=ContentValidationResponse)
+async def validate_content_for_platform(
+    platform_id: str,
+    req: ContentValidateRequest,
+):
+    """验证内容是否符合平台规则
+
+    Args:
+        platform_id: 平台标识
+        req: 验证请求
+    """
+    if platform_id not in PLATFORM_RULES:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail=f"平台不存在: {platform_id}",
+        )
+
+    result = platform_rule_service.validate_content(
+        content=req.content,
+        title=req.title,
+        platform_id=platform_id,
+    )
+
+    issues = [
+        ContentValidationIssue(
+            severity=i["severity"],
+            message=i["message"],
+            category=i.get("category", "general"),
+        )
+        for i in result.get("issues", [])
+    ]
+
+    return ContentValidationResponse(
+        is_valid=result["is_valid"],
+        score=result["score"],
+        issues=issues,
+        passed=result.get("passed", []),
+    )
+
+
+@router.get("/{platform_id}/rules/{rule_category}")
+async def get_platform_rule_category(
+    platform_id: str,
+    rule_category: str,
+):
+    """获取平台特定类别的规则
+
+    Args:
+        platform_id: 平台标识
+        rule_category: 规则类别 (title_rules, tag_rules, ai_sensitivity, etc.)
+    """
+    valid_categories = rule_engine.get_all_rule_categories()
+
+    if rule_category not in valid_categories:
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail=f"无效的规则类别: {rule_category}，有效值: {', '.join(valid_categories)}",
+        )
+
+    rule = platform_rule_service.get_rule_category(platform_id, rule_category)
+    if rule is None:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail=f"平台不存在或规则类别无效: {platform_id}/{rule_category}",
+        )
+
+    return {
+        "platform_id": platform_id,
+        "rule_category": rule_category,
+        "rule": rule,
+    }
+
+
+@router.get("/{platform_id}/ai-config")
+async def get_platform_ai_config(platform_id: str):
+    """获取平台AI敏感度配置（用于去AI化处理）
+
+    Args:
+        platform_id: 平台标识
+    """
+    config = platform_rule_service.get_ai_humanization_config(platform_id)
+    if config is None:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail=f"平台不存在: {platform_id}",
+        )
+
+    return {
+        "platform_id": platform_id,
+        "ai_sensitivity": config,
+    }
+
+
+@router.post("/{platform_id}/detect-ai-patterns")
+async def detect_ai_patterns_in_content(
+    platform_id: str,
+    content: str = Query(..., description="待检测内容"),
+):
+    """检测内容中的AI写作模式
+
+    Args:
+        platform_id: 平台标识
+        content: 待检测内容
+    """
+    if platform_id not in PLATFORM_RULES:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail=f"平台不存在: {platform_id}",
+        )
+
+    detected = platform_rule_service.detect_ai_patterns(content, platform_id)
+
+    return {
+        "platform_id": platform_id,
+        "content_length": len(content),
+        "detected_patterns": detected,
+        "total_detected": len(detected),
+    }
+
+
+@router.get("/{platform_id}/tips")
+async def get_platform_optimization_tips(platform_id: str):
+    """获取平台优化建议
+
+    Args:
+        platform_id: 平台标识
+    """
+    if platform_id not in PLATFORM_RULES:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail=f"平台不存在: {platform_id}",
+        )
+
+    tips = platform_rule_service.get_optimization_tips(platform_id)
+    rules = PLATFORM_RULES.get(platform_id, {})
+
+    return {
+        "platform_id": platform_id,
+        "platform_name": rules.get("name", ""),
+        "content_style": rules.get("content_style", ""),
+        "tips": tips,
+    }
+
+
+@router.get("/categories")
+async def list_rule_categories():
+    """获取所有规则类别"""
+    categories = rule_engine.get_all_rule_categories()
+    return {
+        "categories": categories,
+        "total": len(categories),
+    }
diff --git a/backend/app/main.py b/backend/app/main.py
index af8af51..d6f9942 100644
--- a/backend/app/main.py
+++ b/backend/app/main.py
@@ -33,6 +33,7 @@ from app.api.dashboard import router as dashboard_router
 from app.api.brands import router as brands_router
 from app.api.onboarding import router as onboarding_router
 from app.api.platforms import router as platforms_router
+from app.api.platform_rules import router as platform_rules_router
 from app.config import settings
 from app.database import engine, Base
 from app.schemas.common import ErrorResponse, ErrorCode
@@ -151,6 +152,7 @@ app.include_router(dashboard_router, prefix="/api/v1/dashboard", tags=["仪表
 app.include_router(brands_router, prefix="/api/v1/brands", tags=["品牌管理"])
 app.include_router(onboarding_router, prefix="/api/v1")
 app.include_router(platforms_router, prefix="/api/v1")
+app.include_router(platform_rules_router)
 
 
 @app.get("/health", tags=["可观测性"])
diff --git a/backend/app/schemas/platform_rule.py b/backend/app/schemas/platform_rule.py
new file mode 100644
index 0000000..472f9ca
--- /dev/null
+++ b/backend/app/schemas/platform_rule.py
@@ -0,0 +1,307 @@
+"""平台规则管理 Schema - 定义规则管理的请求响应结构"""
+
+from datetime import datetime
+from typing import Optional
+from pydantic import BaseModel, Field
+
+
+# ============================================================
+# 基础信息 Schema
+# ============================================================
+
+class ContentLengthRule(BaseModel):
+    """内容长度规则"""
+    min: int = Field(..., description="最小字数")
+    max: int = Field(..., description="最大字数")
+    recommended: int = Field(..., description="推荐字数")
+
+
+class StructurePreference(BaseModel):
+    """结构偏好"""
+    has_intro: bool = True
+    has_conclusion: bool = True
+    has_toc: bool = False
+
+
+# ============================================================
+# 标题规则 Schema
+# ============================================================
+
+class TitleRule(BaseModel):
+    """标题规则"""
+    min_length: int = Field(..., description="最小长度")
+    max_length: int = Field(..., description="最大长度")
+    avoid_patterns: list[str] = Field(default_factory=list, description="避免的模式")
+    required_patterns: list[str] = Field(default_factory=list, description="需要的模式")
+    case_style: str = Field(default="normal", description="大小写样式")
+
+
+# ============================================================
+# 标签规则 Schema
+# ============================================================
+
+class TagRule(BaseModel):
+    """标签规则"""
+    min_tags: int = Field(..., description="最少标签数")
+    max_tags: int = Field(..., description="最多标签数")
+    tag_style: str = Field(default="plain", description="标签样式: plain/hashtag/comma")
+
+
+# ============================================================
+# AI 敏感度 Schema
+# ============================================================
+
+class AISensitivity(BaseModel):
+    """AI敏感度配置"""
+    detection_level: str = Field(..., description="检测级别: high/medium/low")
+    banned_patterns: list[str] = Field(default_factory=list, description="禁用模式")
+    banned_structures: list[str] = Field(default_factory=list, description="禁用结构")
+    safe_patterns: list[str] = Field(default_factory=list, description="安全模式")
+    humanization_required: bool = Field(default=False, description="是否需要去AI化")
+
+
+# ============================================================
+# 敏感词规则 Schema
+# ============================================================
+
+class SensitiveWordsConfig(BaseModel):
+    """敏感词配置"""
+    check_required: bool = Field(default=True, description="是否需要检查")
+    categories: list[str] = Field(default_factory=list, description="敏感词分类")
+    max_tolerance: int = Field(default=0, description="容忍度")
+    auto_filter: bool = Field(default=True, description="自动过滤")
+
+
+# ============================================================
+# SEO 规则 Schema
+# ============================================================
+
+class KeywordDensity(BaseModel):
+    """关键词密度"""
+    min: float = Field(..., description="最小百分比")
+    max: float = Field(..., description="最大百分比")
+    recommended: float = Field(..., description="推荐百分比")
+
+
+class SEORule(BaseModel):
+    """SEO规则"""
+    keyword_density: KeywordDensity
+    keyword_position: list[str] = Field(default_factory=list, description="关键词位置")
+    internal_links: dict = Field(default_factory=dict, description="内链规则")
+
+
+# ============================================================
+# GEO 规则 Schema
+# ============================================================
+
+class GEORule(BaseModel):
+    """GEO规则"""
+    citation_format: str = Field(default="plain", description="引用格式: plain/link/markdown/academic")
+    source_attribution: bool = Field(default=False, description="是否需要来源标注")
+    reference_style: str = Field(default="informal", description="引用风格: academic/informal")
+
+
+# ============================================================
+# HTML 规则 Schema
+# ============================================================
+
+class HTMLRule(BaseModel):
+    """HTML规则"""
+    supported_tags: list[str] = Field(default_factory=list, description="支持的HTML标签")
+    banned_tags: list[str] = Field(default_factory=list, description="禁用的HTML标签")
+    image_support: bool = Field(default=True, description="是否支持图片")
+    video_support: bool = Field(default=False, description="是否支持视频")
+    code_block_support: bool = Field(default=False, description="是否支持代码块")
+
+
+# ============================================================
+# 发布规则 Schema
+# ============================================================
+
+class PublishRule(BaseModel):
+    """发布规则"""
+    auto_publish: bool = Field(default=False, description="是否自动发布")
+    require_review: bool = Field(default=True, description="是否需要审核")
+    publish_timing: str = Field(default="immediate", description="发布时机: immediate/scheduled/draft")
+
+
+# ============================================================
+# 完整平台规则 Schema
+# ============================================================
+
+class PlatformRuleSchema(BaseModel):
+    """完整平台规则"""
+    platform_name: str = Field(..., description="平台名称")
+    platform_type: str = Field(default="", description="平台类型")
+    priority: str = Field(default="P2", description="优先级: P0/P1/P2")
+    enabled: bool = Field(default=True, description="是否启用")
+    content_style: str = Field(default="", description="内容风格")
+    content_length: ContentLengthRule
+    structure_preference: StructurePreference
+    title_rules: TitleRule
+    tag_rules: TagRule
+    ai_sensitivity: AISensitivity
+    sensitive_words: SensitiveWordsConfig
+    seo_rules: SEORule
+    geo_rules: GEORule
+    html_rules: HTMLRule
+    publish_rules: PublishRule
+
+
+# ============================================================
+# 简化的平台信息 Schema (用于列表展示)
+# ============================================================
+
+class PlatformBrief(BaseModel):
+    """简化的平台信息"""
+    id: str
+    name: str
+    platform_type: str = ""
+    priority: str = "P2"
+    enabled: bool = True
+
+
+class PlatformListResponse(BaseModel):
+    """平台列表响应"""
+    platforms: list[PlatformBrief]
+    total: int
+
+
+class PlatformDetailResponse(BaseModel):
+    """平台详情响应"""
+    id: str
+    name: str
+    platform_type: str = ""
+    priority: str = "P2"
+    enabled: bool = True
+    content_style: str = ""
+    content_length: ContentLengthRule
+    structure_preference: StructurePreference
+    title_rules: TitleRule
+    tag_rules: TagRule
+    ai_sensitivity: AISensitivity
+    sensitive_words: SensitiveWordsConfig
+    seo_rules: SEORule
+    geo_rules: GEORule
+    html_rules: HTMLRule
+    publish_rules: PublishRule
+    best_publish_times: list[str] = []
+    best_publish_days: list[str] = []
+    max_images: int = 0
+
+
+# ============================================================
+# 规则更新 Schema
+# ============================================================
+
+class PlatformRuleUpdateRequest(BaseModel):
+    """平台规则更新请求"""
+    content_style: Optional[str] = None
+    content_length: Optional[ContentLengthRule] = None
+    structure_preference: Optional[StructurePreference] = None
+    title_rules: Optional[TitleRule] = None
+    tag_rules: Optional[TagRule] = None
+    ai_sensitivity: Optional[AISensitivity] = None
+    sensitive_words: Optional[SensitiveWordsConfig] = None
+    seo_rules: Optional[SEORule] = None
+    geo_rules: Optional[GEORule] = None
+    html_rules: Optional[HTMLRule] = None
+    publish_rules: Optional[PublishRule] = None
+    enabled: Optional[bool] = None
+
+
+class PlatformRuleUpdateResponse(BaseModel):
+    """平台规则更新响应"""
+    success: bool
+    platform_id: str
+    message: str
+    updated_at: datetime
+
+
+# ============================================================
+# 规则变更历史 Schema
+# ============================================================
+
+class RuleChangeHistory(BaseModel):
+    """规则变更历史"""
+    id: int
+    platform_id: str
+    platform_name: str
+    changed_by: str
+    change_summary: str
+    change_type: str
+    previous_rules: Optional[dict] = None
+    new_rules: Optional[dict] = None
+    created_at: datetime
+
+
+class RuleChangeHistoryResponse(BaseModel):
+    """规则变更历史响应"""
+    history: list[RuleChangeHistory]
+    total: int
+
+
+# ============================================================
+# 规则验证 Schema
+# ============================================================
+
+class ContentValidationIssue(BaseModel):
+    """内容验证问题"""
+    severity: str = Field(..., description="严重程度: high/medium/low")
+    message: str = Field(..., description="问题描述")
+    category: str = Field(..., description="问题分类")
+
+
+class ContentValidationResponse(BaseModel):
+    """内容验证响应"""
+    is_valid: bool
+    score: int = Field(..., ge=0, le=100, description="合规分数 0-100")
+    issues: list[ContentValidationIssue]
+    passed: list[str]
+
+
+class ContentValidateRequest(BaseModel):
+    """内容验证请求"""
+    content: str = Field(..., description="待验证内容")
+    title: str = Field(..., description="标题")
+    platform: str = Field(..., description="平台ID")
+
+
+# ============================================================
+# 规则差异对比 Schema
+# ============================================================
+
+class RuleDiff(BaseModel):
+    """规则差异"""
+    field: str
+    old_value: Optional[Any] = None
+    new_value: Optional[Any] = None
+
+
+class RuleDiffResponse(BaseModel):
+    """规则差异响应"""
+    platform_id: str
+    platform_name: str
+    diffs: list[RuleDiff]
+    total_changes: int
+
+
+# ============================================================
+# AI 去AI化请求 Schema
+# ============================================================
+
+class DeAIContentRequest(BaseModel):
+    """去AI化请求"""
+    content: str = Field(..., description="待处理内容")
+    platform: str = Field(..., description="目标平台")
+    style: Optional[str] = Field(default="自然流畅", description="目标风格")
+
+
+class DeAIContentResponse(BaseModel):
+    """去AI化响应"""
+    original_content: str
+    processed_content: str
+    original_word_count: int
+    processed_word_count: int
+    detected_ai_patterns: list[str] = []
+    replaced_patterns: dict[str, str] = {}
diff --git a/backend/app/services/distribution/platform_rules.py b/backend/app/services/distribution/platform_rules.py
index 85d020c..9a171c9 100644
--- a/backend/app/services/distribution/platform_rules.py
+++ b/backend/app/services/distribution/platform_rules.py
@@ -1,25 +1,185 @@
 """平台规则引擎 - 各内容平台的规则和最佳实践"""
 
 import re
+from typing import Optional
+
+# AI写作典型特征模式
+AI_PATTERNS = {
+    "banned_transitions": [
+        "总之", "综上所述", "值得注意的是", "让我们", "总而言之",
+        "不可否认", "毋庸置疑", "首先", "其次", "最后", "最后但同样重要",
+        "换句话说", "也就是说", "更重要的是", "可以说",
+    ],
+    "banned_modifiers": [
+        "至关重要", "不可或缺", "举足轻重", "蓬勃发展", "日新月异",
+        "深远影响", "全面提升", "显著成效", "重大突破", "核心要素",
+    ],
+    "banned_structures": [
+        r"第一[，、].*第二[，、].*第三",  # 对称三段式
+        r"一方面[，、].*另一方面",  # 一方面...另一方面
+    ],
+    "safe_patterns": [
+        "根据研究表明", "调研数据显示", "经验告诉我们",
+        "事实上", "说白了", "说实话", "说真的",
+    ],
+}
+
+# 敏感词分类
+SENSITIVE_CATEGORIES = {
+    "politics": ["政治敏感词库"],
+    "medical": ["医疗敏感词库"],
+    "finance": ["金融敏感词库"],
+    "adult": ["低俗敏感词库"],
+}
+
 
 PLATFORM_RULES: dict[str, dict] = {
+    # ============================================================
+    # P0 优先级平台
+    # ============================================================
+    "zhihu": {
+        "name": "知乎",
+        "platform_type": "内容社区",
+        "priority": "P0",
+        "enabled": True,
+        "content_style": "专业/深度/逻辑严谨",
+        "content_length": {"min": 500, "max": 50000, "recommended": 2000},
+        "structure_preference": {
+            "has_intro": True,
+            "has_conclusion": True,
+            "has_toc": True,
+        },
+        "title_rules": {
+            "min_length": 10,
+            "max_length": 30,
+            "avoid_patterns": ["emoji", "标题党", "过度营销"],
+            "required_patterns": ["关键词"],
+            "case_style": "normal",
+        },
+        "tag_rules": {
+            "min_tags": 3,
+            "max_tags": 10,
+            "tag_style": "plain",
+        },
+        "ai_sensitivity": {
+            "detection_level": "high",
+            "banned_patterns": AI_PATTERNS["banned_transitions"] + AI_PATTERNS["banned_modifiers"],
+            "banned_structures": AI_PATTERNS["banned_structures"],
+            "safe_patterns": AI_PATTERNS["safe_patterns"],
+            "humanization_required": True,
+        },
+        "sensitive_words": {
+            "check_required": True,
+            "categories": ["politics", "medical", "finance", "adult"],
+            "max_tolerance": 0,
+            "auto_filter": True,
+        },
+        "seo_rules": {
+            "keyword_density": {"min": 1, "max": 3, "recommended": 2},
+            "keyword_position": ["title", "first_para", "headings"],
+            "internal_links": {"min": 0, "max": 3},
+        },
+        "geo_rules": {
+            "citation_format": "academic",
+            "source_attribution": True,
+            "reference_style": "academic",
+        },
+        "html_rules": {
+            "supported_tags": ["p", "h1", "h2", "h3", "h4", "ul", "ol", "blockquote", "code", "pre"],
+            "banned_tags": ["script", "iframe", "form", "style"],
+            "image_support": True,
+            "video_support": True,
+            "code_block_support": True,
+        },
+        "publish_rules": {
+            "auto_publish": False,
+            "require_review": False,
+            "publish_timing": "immediate",
+        },
+        "best_publish_times": ["09:00-10:00", "14:00-15:00", "20:00-22:00"],
+        "best_publish_days": ["周一", "周三", "周五"],
+        "max_images": 50,
+        "platform_rules": [
+            "回答需针对问题本身",
+            "不得过度营销或硬广",
+            "引用需标注来源",
+            "不得使用AI水文（内容需有信息增量）",
+            "专业背书内容需有据可查",
+        ],
+        "seo_tips": [
+            "回答开头直接给出结论",
+            "使用数据和案例支撑",
+            "合理设置二级标题",
+            "文末引导关注专栏",
+        ],
+    },
+
     "wechat": {
         "name": "微信公众号",
-        "icon": "wechat",
-        "max_title_length": 22,
-        "max_content_length": 20000,
-        "min_content_length": 300,
-        "supported_media": ["image", "video", "audio"],
-        "max_images": 20,
+        "platform_type": "内容平台",
+        "priority": "P0",
+        "enabled": True,
+        "content_style": "深度/品牌调性",
+        "content_length": {"min": 300, "max": 20000, "recommended": 1500},
+        "structure_preference": {
+            "has_intro": True,
+            "has_conclusion": True,
+            "has_toc": False,
+        },
+        "title_rules": {
+            "min_length": 5,
+            "max_length": 22,
+            "avoid_patterns": ["emoji", "连续特殊符号", "标题党"],
+            "required_patterns": [],
+            "case_style": "normal",
+        },
+        "tag_rules": {
+            "min_tags": 1,
+            "max_tags": 3,
+            "tag_style": "plain",
+        },
+        "ai_sensitivity": {
+            "detection_level": "medium",
+            "banned_patterns": [
+                "首先", "其次", "最后", "总的来说", "综上所述",
+                "想必大家都有所了解", "相信大家都不陌生",
+            ],
+            "banned_structures": AI_PATTERNS["banned_structures"],
+            "safe_patterns": ["根据后台数据", "从运营角度来说", "结合我们的经验"],
+            "humanization_required": True,
+        },
+        "sensitive_words": {
+            "check_required": True,
+            "categories": ["politics", "medical", "finance", "adult"],
+            "max_tolerance": 0,
+            "auto_filter": True,
+        },
+        "seo_rules": {
+            "keyword_density": {"min": 0.5, "max": 2, "recommended": 1},
+            "keyword_position": ["title", "first_para"],
+            "internal_links": {"min": 0, "max": 5},
+        },
+        "geo_rules": {
+            "citation_format": "plain",
+            "source_attribution": True,
+            "reference_style": "informal",
+        },
+        "html_rules": {
+            "supported_tags": ["p", "h1", "h2", "h3", "section", "blockquote", "img"],
+            "banned_tags": ["script", "iframe", "form", "a"],
+            "image_support": True,
+            "video_support": True,
+            "code_block_support": False,
+        },
+        "publish_rules": {
+            "auto_publish": False,
+            "require_review": True,
+            "publish_timing": "scheduled",
+        },
         "best_publish_times": ["07:30-08:30", "11:30-12:30", "17:30-18:30", "20:30-22:00"],
         "best_publish_days": ["周二", "周四", "周六"],
-        "format_features": {
-            "supports_markdown": False,
-            "supports_html": True,
-            "max_heading_level": 3,
-            "supports_code_block": True,
-        },
-        "rules": [
+        "max_images": 20,
+        "platform_rules": [
             "不得使用诱导分享/关注语句",
             "图片单张不超过10MB",
             "标题不含连续特殊符号（如!!!）",
@@ -33,83 +193,70 @@ PLATFORM_RULES: dict[str, dict] = {
             "摘要控制在120字内",
         ],
     },
-    "zhihu": {
-        "name": "知乎",
-        "icon": "zhihu",
-        "max_title_length": 30,
-        "max_content_length": 50000,
-        "min_content_length": 500,
-        "supported_media": ["image", "video"],
-        "max_images": 50,
-        "best_publish_times": ["09:00-10:00", "14:00-15:00", "20:00-22:00"],
-        "best_publish_days": ["周一", "周三", "周五"],
-        "format_features": {
-            "supports_markdown": True,
-            "supports_html": False,
-            "max_heading_level": 4,
-            "supports_code_block": True,
-        },
-        "rules": [
-            "回答需针对问题本身",
-            "不得过度营销或硬广",
-            "引用需标注来源",
-            "不得使用AI水文（内容需有信息增量）",
-        ],
-        "seo_tips": [
-            "回答开头直接给出结论",
-            "使用数据和案例支撑",
-            "合理设置二级标题",
-            "文末引导关注专栏",
-        ],
-    },
-    "xiaohongshu": {
-        "name": "小红书",
-        "icon": "xiaohongshu",
-        "max_title_length": 20,
-        "max_content_length": 1000,
-        "min_content_length": 100,
-        "supported_media": ["image", "video"],
-        "max_images": 18,
-        "best_publish_times": ["07:00-09:00", "12:00-13:00", "18:00-20:00", "21:00-23:00"],
-        "best_publish_days": ["周末", "周三"],
-        "format_features": {
-            "supports_markdown": False,
-            "supports_html": False,
-            "max_heading_level": 0,
-            "supports_code_block": False,
-            "supports_emoji": True,
-        },
-        "rules": [
-            "首图质量决定点击率",
-            "正文控制在300-800字",
-            "话题标签3-8个",
-            "不得出现其他平台引流信息",
-            "图片不含水印",
-        ],
-        "seo_tips": [
-            "标题含数字更吸引点击",
-            "正文用短句+emoji分段",
-            "话题标签放文末",
-            "首句即核心观点",
-        ],
-    },
+
     "baijiahao": {
         "name": "百家号",
-        "icon": "baidu",
-        "max_title_length": 30,
-        "max_content_length": 30000,
-        "min_content_length": 800,
-        "supported_media": ["image", "video"],
-        "max_images": 30,
+        "platform_type": "内容平台",
+        "priority": "P0",
+        "enabled": True,
+        "content_style": "资讯/SEO友好",
+        "content_length": {"min": 800, "max": 30000, "recommended": 1500},
+        "structure_preference": {
+            "has_intro": True,
+            "has_conclusion": True,
+            "has_toc": False,
+        },
+        "title_rules": {
+            "min_length": 10,
+            "max_length": 40,
+            "avoid_patterns": ["emoji", "标题党", "夸张词汇"],
+            "required_patterns": ["核心关键词"],
+            "case_style": "normal",
+        },
+        "tag_rules": {
+            "min_tags": 3,
+            "max_tags": 5,
+            "tag_style": "plain",
+        },
+        "ai_sensitivity": {
+            "detection_level": "high",
+            "banned_patterns": AI_PATTERNS["banned_transitions"] + AI_PATTERNS["banned_modifiers"],
+            "banned_structures": AI_PATTERNS["banned_structures"],
+            "safe_patterns": ["据悉", "从某处获悉", "数据显示"],
+            "humanization_required": True,
+        },
+        "sensitive_words": {
+            "check_required": True,
+            "categories": ["politics", "medical", "finance", "adult"],
+            "max_tolerance": 0,
+            "auto_filter": True,
+        },
+        "seo_rules": {
+            "keyword_density": {"min": 1.5, "max": 4, "recommended": 2.5},
+            "keyword_position": ["title", "first_para", "headings"],
+            "internal_links": {"min": 1, "max": 5},
+        },
+        "geo_rules": {
+            "citation_format": "link",
+            "source_attribution": True,
+            "reference_style": "informal",
+        },
+        "html_rules": {
+            "supported_tags": ["p", "h1", "h2", "h3", "ul", "ol", "blockquote", "img"],
+            "banned_tags": ["script", "iframe", "form", "video"],
+            "image_support": True,
+            "video_support": False,
+            "code_block_support": False,
+        },
+        "publish_rules": {
+            "auto_publish": True,
+            "require_review": False,
+            "publish_timing": "immediate",
+        },
         "best_publish_times": ["08:00-09:00", "11:00-12:00", "17:00-18:00"],
         "best_publish_days": ["工作日"],
-        "format_features": {
-            "supports_markdown": False,
-            "supports_html": True,
-            "max_heading_level": 3,
-            "supports_code_block": False,
-        },
-        "rules": [
+        "max_images": 30,
+        "platform_rules": [
             "原创内容优先推荐",
             "标题不含夸张/标题党词汇",
             "正文需含至少1张配图",
@@ -122,53 +269,73 @@ PLATFORM_RULES: dict[str, dict] = {
             "发布后及时答复评论",
         ],
     },
-    "douyin": {
-        "name": "抖音",
-        "icon": "douyin",
-        "max_title_length": 55,
-        "max_content_length": 5000,
-        "min_content_length": 0,
-        "supported_media": ["video", "image"],
-        "max_images": 35,
-        "best_publish_times": ["06:00-08:00", "12:00-13:00", "18:00-20:00", "22:00-23:00"],
-        "best_publish_days": ["每天"],
-        "format_features": {
-            "supports_markdown": False,
-            "supports_html": False,
-            "max_heading_level": 0,
-            "supports_code_block": False,
-            "supports_emoji": True,
-        },
-        "rules": [
-            "视频/图文需原创",
-            "不得含其他平台水印",
-            "话题标签2-5个",
-            "文案简短有吸引力",
-        ],
-        "seo_tips": [
-            "前3秒决定完播率",
-            "标题含热点关键词",
-            "评论区互动提升权重",
-            "合适的话题+POI定位",
-        ],
-    },
+
+    # ============================================================
+    # P1 优先级平台
+    # ============================================================
     "toutiao": {
         "name": "今日头条",
-        "icon": "toutiao",
-        "max_title_length": 30,
-        "max_content_length": 30000,
-        "min_content_length": 500,
-        "supported_media": ["image", "video"],
-        "max_images": 30,
+        "platform_type": "内容平台",
+        "priority": "P1",
+        "enabled": True,
+        "content_style": "资讯/简洁明了",
+        "content_length": {"min": 500, "max": 30000, "recommended": 1500},
+        "structure_preference": {
+            "has_intro": True,
+            "has_conclusion": False,
+            "has_toc": False,
+        },
+        "title_rules": {
+            "min_length": 10,
+            "max_length": 30,
+            "avoid_patterns": ["emoji", "标题党", "夸张"],
+            "required_patterns": ["悬念元素"],
+            "case_style": "normal",
+        },
+        "tag_rules": {
+            "min_tags": 1,
+            "max_tags": 5,
+            "tag_style": "hashtag",
+        },
+        "ai_sensitivity": {
+            "detection_level": "high",
+            "banned_patterns": AI_PATTERNS["banned_transitions"] + AI_PATTERNS["banned_modifiers"],
+            "banned_structures": AI_PATTERNS["banned_structures"],
+            "safe_patterns": ["据悉", "报道称", "记者了解到"],
+            "humanization_required": True,
+        },
+        "sensitive_words": {
+            "check_required": True,
+            "categories": ["politics", "medical", "finance", "adult"],
+            "max_tolerance": 0,
+            "auto_filter": True,
+        },
+        "seo_rules": {
+            "keyword_density": {"min": 1, "max": 3, "recommended": 2},
+            "keyword_position": ["title", "first_para"],
+            "internal_links": {"min": 0, "max": 3},
+        },
+        "geo_rules": {
+            "citation_format": "link",
+            "source_attribution": True,
+            "reference_style": "informal",
+        },
+        "html_rules": {
+            "supported_tags": ["p", "h1", "h2", "h3", "ul", "ol", "blockquote", "img"],
+            "banned_tags": ["script", "iframe", "form", "video"],
+            "image_support": True,
+            "video_support": True,
+            "code_block_support": False,
+        },
+        "publish_rules": {
+            "auto_publish": True,
+            "require_review": False,
+            "publish_timing": "immediate",
+        },
         "best_publish_times": ["07:00-08:00", "12:00-13:00", "18:00-19:00", "21:00-22:00"],
         "best_publish_days": ["每天"],
-        "format_features": {
-            "supports_markdown": False,
-            "supports_html": True,
-            "max_heading_level": 3,
-            "supports_code_block": False,
-        },
-        "rules": [
+        "max_images": 30,
+        "platform_rules": [
             "标题不得标题党",
             "内容需有信息价值",
             "首发原创优先推荐",
@@ -181,6 +348,461 @@ PLATFORM_RULES: dict[str, dict] = {
             "发布频率稳定提升权重",
         ],
     },
+
+    "weibo": {
+        "name": "微博",
+        "platform_type": "社交媒体",
+        "priority": "P1",
+        "enabled": True,
+        "content_style": "轻松/即时/互动性强",
+        "content_length": {"min": 50, "max": 2000, "recommended": 280},
+        "structure_preference": {
+            "has_intro": False,
+            "has_conclusion": False,
+            "has_toc": False,
+        },
+        "title_rules": {
+            "min_length": 5,
+            "max_length": 50,
+            "avoid_patterns": ["长链接"],
+            "required_patterns": [],
+            "case_style": "normal",
+        },
+        "tag_rules": {
+            "min_tags": 1,
+            "max_tags": 10,
+            "tag_style": "hashtag",
+        },
+        "ai_sensitivity": {
+            "detection_level": "low",
+            "banned_patterns": ["首先", "其次", "最后", "总的来说"],
+            "banned_structures": [],
+            "safe_patterns": ["我觉得", "说实话", "求证中", "据说"],
+            "humanization_required": False,
+        },
+        "sensitive_words": {
+            "check_required": True,
+            "categories": ["politics", "adult"],
+            "max_tolerance": 2,
+            "auto_filter": True,
+        },
+        "seo_rules": {
+            "keyword_density": {"min": 0.5, "max": 2, "recommended": 1},
+            "keyword_position": ["title", "first_para"],
+            "internal_links": {"min": 0, "max": 2},
+        },
+        "geo_rules": {
+            "citation_format": "link",
+            "source_attribution": False,
+            "reference_style": "informal",
+        },
+        "html_rules": {
+            "supported_tags": ["p", "br"],
+            "banned_tags": ["script", "iframe", "form"],
+            "image_support": True,
+            "video_support": True,
+            "code_block_support": False,
+        },
+        "publish_rules": {
+            "auto_publish": True,
+            "require_review": False,
+            "publish_timing": "immediate",
+        },
+        "best_publish_times": ["07:00-09:00", "12:00-13:00", "18:00-20:00", "21:00-23:00"],
+        "best_publish_days": ["每天"],
+        "max_images": 9,
+        "platform_rules": [
+            "不得发布虚假信息",
+            "不得过度营销",
+            "话题标签有助于曝光",
+            "配图有助于转发",
+        ],
+        "seo_tips": [
+            "热门话题可增加曝光",
+            "短句更易阅读",
+            "互动有助于上热门",
+        ],
+    },
+
+    "xiaohongshu": {
+        "name": "小红书",
+        "platform_type": "种草平台",
+        "priority": "P1",
+        "enabled": True,
+        "content_style": "种草/亲身体验/生活化",
+        "content_length": {"min": 100, "max": 1000, "recommended": 500},
+        "structure_preference": {
+            "has_intro": True,
+            "has_conclusion": True,
+            "has_toc": False,
+        },
+        "title_rules": {
+            "min_length": 5,
+            "max_length": 20,
+            "avoid_patterns": ["标题党"],
+            "required_patterns": ["emoji可用"],
+            "case_style": "normal",
+        },
+        "tag_rules": {
+            "min_tags": 3,
+            "max_tags": 10,
+            "tag_style": "hashtag",
+        },
+        "ai_sensitivity": {
+            "detection_level": "low",
+            "banned_patterns": ["首先", "其次", "最后", "综上所述"],
+            "banned_structures": [],
+            "safe_patterns": ["我用过", "亲测", "真实体验", "分享一下"],
+            "humanization_required": False,
+        },
+        "sensitive_words": {
+            "check_required": True,
+            "categories": ["adult"],
+            "max_tolerance": 0,
+            "auto_filter": True,
+        },
+        "seo_rules": {
+            "keyword_density": {"min": 0.5, "max": 2, "recommended": 1},
+            "keyword_position": ["title", "first_para"],
+            "internal_links": {"min": 0, "max": 0},
+        },
+        "geo_rules": {
+            "citation_format": "plain",
+            "source_attribution": False,
+            "reference_style": "informal",
+        },
+        "html_rules": {
+            "supported_tags": ["p", "br"],
+            "banned_tags": ["script", "iframe", "form", "h1", "h2", "h3"],
+            "image_support": True,
+            "video_support": True,
+            "code_block_support": False,
+        },
+        "publish_rules": {
+            "auto_publish": True,
+            "require_review": False,
+            "publish_timing": "immediate",
+        },
+        "best_publish_times": ["07:00-09:00", "12:00-13:00", "18:00-20:00", "21:00-23:00"],
+        "best_publish_days": ["周末", "周三"],
+        "max_images": 18,
+        "platform_rules": [
+            "首图质量决定点击率",
+            "正文控制在300-800字",
+            "话题标签3-10个",
+            "不得出现其他平台引流信息",
+            "图片不含水印",
+        ],
+        "seo_tips": [
+            "标题含数字更吸引点击",
+            "正文用短句+emoji分段",
+            "话题标签放文末",
+            "首句即核心观点",
+        ],
+    },
+
+    # ============================================================
+    # P2 优先级平台
+    # ============================================================
+    "bilibili": {
+        "name": "B站",
+        "platform_type": "视频/图文",
+        "priority": "P2",
+        "enabled": True,
+        "content_style": "年轻化/专业/趣味性",
+        "content_length": {"min": 200, "max": 5000, "recommended": 1000},
+        "structure_preference": {
+            "has_intro": True,
+            "has_conclusion": True,
+            "has_toc": True,
+        },
+        "title_rules": {
+            "min_length": 5,
+            "max_length": 80,
+            "avoid_patterns": ["标题党", "过度夸张"],
+            "required_patterns": [],
+            "case_style": "normal",
+        },
+        "tag_rules": {
+            "min_tags": 1,
+            "max_tags": 10,
+            "tag_style": "hashtag",
+        },
+        "ai_sensitivity": {
+            "detection_level": "medium",
+            "banned_patterns": ["首先", "其次", "最后", "总的来说", "综上所述"],
+            "banned_structures": [],
+            "safe_patterns": ["兄弟们", "家人们", "懂的都懂", "感谢一键三连"],
+            "humanization_required": True,
+        },
+        "sensitive_words": {
+            "check_required": True,
+            "categories": ["politics", "adult"],
+            "max_tolerance": 0,
+            "auto_filter": True,
+        },
+        "seo_rules": {
+            "keyword_density": {"min": 0.5, "max": 2, "recommended": 1},
+            "keyword_position": ["title"],
+            "internal_links": {"min": 0, "max": 0},
+        },
+        "geo_rules": {
+            "citation_format": "plain",
+            "source_attribution": True,
+            "reference_style": "informal",
+        },
+        "html_rules": {
+            "supported_tags": ["p", "h1", "h2", "h3", "ul", "ol", "blockquote", "code", "pre"],
+            "banned_tags": ["script", "iframe", "form"],
+            "image_support": True,
+            "video_support": True,
+            "code_block_support": True,
+        },
+        "publish_rules": {
+            "auto_publish": True,
+            "require_review": False,
+            "publish_timing": "immediate",
+        },
+        "best_publish_times": ["16:00-18:00", "20:00-22:00"],
+        "best_publish_days": ["周五", "周六", "周日"],
+        "max_images": 50,
+        "platform_rules": [
+            "稿件需要过审",
+            "不得搬运他人内容",
+            "封面和标题很重要",
+            "互动有助于推荐",
+        ],
+        "seo_tips": [
+            "标题包含关键词",
+            "封面吸引人",
+            "标签有助于分类",
+        ],
+    },
+
+    "jianshu": {
+        "name": "简书",
+        "platform_type": "内容平台",
+        "priority": "P2",
+        "enabled": True,
+        "content_style": "文艺/真实/个人表达",
+        "content_length": {"min": 500, "max": 50000, "recommended": 2000},
+        "structure_preference": {
+            "has_intro": True,
+            "has_conclusion": True,
+            "has_toc": False,
+        },
+        "title_rules": {
+            "min_length": 5,
+            "max_length": 50,
+            "avoid_patterns": ["emoji", "标题党"],
+            "required_patterns": [],
+            "case_style": "normal",
+        },
+        "tag_rules": {
+            "min_tags": 2,
+            "max_tags": 5,
+            "tag_style": "plain",
+        },
+        "ai_sensitivity": {
+            "detection_level": "medium",
+            "banned_patterns": ["首先", "其次", "最后", "总的来说"],
+            "banned_structures": [],
+            "safe_patterns": ["我手写我心", "分享一下", "记录一下"],
+            "humanization_required": True,
+        },
+        "sensitive_words": {
+            "check_required": True,
+            "categories": ["politics", "adult"],
+            "max_tolerance": 0,
+            "auto_filter": True,
+        },
+        "seo_rules": {
+            "keyword_density": {"min": 0.5, "max": 2, "recommended": 1},
+            "keyword_position": ["title", "first_para"],
+            "internal_links": {"min": 0, "max": 3},
+        },
+        "geo_rules": {
+            "citation_format": "plain",
+            "source_attribution": True,
+            "reference_style": "informal",
+        },
+        "html_rules": {
+            "supported_tags": ["p", "h1", "h2", "h3", "ul", "ol", "blockquote", "code"],
+            "banned_tags": ["script", "iframe", "form"],
+            "image_support": True,
+            "video_support": False,
+            "code_block_support": True,
+        },
+        "publish_rules": {
+            "auto_publish": True,
+            "require_review": False,
+            "publish_timing": "immediate",
+        },
+        "best_publish_times": ["08:00-10:00", "14:00-16:00", "20:00-22:00"],
+        "best_publish_days": ["每天"],
+        "max_images": 30,
+        "platform_rules": [
+            "鼓励原创",
+            "文艺风格更受欢迎",
+            "配图有助于阅读",
+        ],
+        "seo_tips": [
+            "标题包含关键词",
+            "合理使用专题",
+            "互动有助于曝光",
+        ],
+    },
+
+    "juejin": {
+        "name": "掘金",
+        "platform_type": "技术社区",
+        "priority": "P2",
+        "enabled": True,
+        "content_style": "技术/专业/深度",
+        "content_length": {"min": 500, "max": 50000, "recommended": 3000},
+        "structure_preference": {
+            "has_intro": True,
+            "has_conclusion": True,
+            "has_toc": True,
+        },
+        "title_rules": {
+            "min_length": 5,
+            "max_length": 50,
+            "avoid_patterns": ["emoji", "标题党"],
+            "required_patterns": ["技术关键词"],
+            "case_style": "normal",
+        },
+        "tag_rules": {
+            "min_tags": 3,
+            "max_tags": 5,
+            "tag_style": "hashtag",
+        },
+        "ai_sensitivity": {
+            "detection_level": "high",
+            "banned_patterns": AI_PATTERNS["banned_transitions"] + AI_PATTERNS["banned_modifiers"],
+            "banned_structures": AI_PATTERNS["banned_structures"],
+            "safe_patterns": ["项目中实际用到", "经过调研发现", "踩坑记录"],
+            "humanization_required": True,
+        },
+        "sensitive_words": {
+            "check_required": True,
+            "categories": ["politics"],
+            "max_tolerance": 0,
+            "auto_filter": True,
+        },
+        "seo_rules": {
+            "keyword_density": {"min": 1, "max": 3, "recommended": 2},
+            "keyword_position": ["title", "first_para", "headings"],
+            "internal_links": {"min": 0, "max": 3},
+        },
+        "geo_rules": {
+            "citation_format": "link",
+            "source_attribution": True,
+            "reference_style": "academic",
+        },
+        "html_rules": {
+            "supported_tags": ["p", "h1", "h2", "h3", "h4", "ul", "ol", "blockquote", "code", "pre"],
+            "banned_tags": ["script", "iframe", "form"],
+            "image_support": True,
+            "video_support": False,
+            "code_block_support": True,
+        },
+        "publish_rules": {
+            "auto_publish": False,
+            "require_review": True,
+            "publish_timing": "immediate",
+        },
+        "best_publish_times": ["09:00-11:00", "14:00-16:00", "20:00-22:00"],
+        "best_publish_days": ["周二", "周四", "周六"],
+        "max_images": 30,
+        "platform_rules": [
+            "技术内容优先",
+            "代码示例有助于理解",
+            "鼓励原创技术文章",
+            "禁止低质量搬运",
+        ],
+        "seo_tips": [
+            "标题包含技术关键词",
+            "代码块有助于阅读",
+            "标签精准有助于推荐",
+        ],
+    },
+
+    "douyin": {
+        "name": "抖音",
+        "platform_type": "短视频平台",
+        "priority": "P1",
+        "enabled": True,
+        "content_style": "短平快/视觉冲击",
+        "content_length": {"min": 0, "max": 5000, "recommended": 0},
+        "structure_preference": {
+            "has_intro": True,
+            "has_conclusion": False,
+            "has_toc": False,
+        },
+        "title_rules": {
+            "min_length": 5,
+            "max_length": 55,
+            "avoid_patterns": ["标题党"],
+            "required_patterns": ["悬念"],
+            "case_style": "normal",
+        },
+        "tag_rules": {
+            "min_tags": 2,
+            "max_tags": 5,
+            "tag_style": "hashtag",
+        },
+        "ai_sensitivity": {
+            "detection_level": "low",
+            "banned_patterns": [],
+            "banned_structures": [],
+            "safe_patterns": [],
+            "humanization_required": False,
+        },
+        "sensitive_words": {
+            "check_required": True,
+            "categories": ["politics", "adult"],
+            "max_tolerance": 0,
+            "auto_filter": True,
+        },
+        "seo_rules": {
+            "keyword_density": {"min": 0.5, "max": 2, "recommended": 1},
+            "keyword_position": ["title"],
+            "internal_links": {"min": 0, "max": 0},
+        },
+        "geo_rules": {
+            "citation_format": "plain",
+            "source_attribution": False,
+            "reference_style": "informal",
+        },
+        "html_rules": {
+            "supported_tags": [],
+            "banned_tags": [],
+            "image_support": False,
+            "video_support": False,
+            "code_block_support": False,
+        },
+        "publish_rules": {
+            "auto_publish": True,
+            "require_review": False,
+            "publish_timing": "immediate",
+        },
+        "best_publish_times": ["06:00-08:00", "12:00-13:00", "18:00-20:00", "22:00-23:00"],
+        "best_publish_days": ["每天"],
+        "max_images": 35,
+        "platform_rules": [
+            "视频/图文需原创",
+            "不得含其他平台水印",
+            "话题标签2-5个",
+            "文案简短有吸引力",
+        ],
+        "seo_tips": [
+            "前3秒决定完播率",
+            "标题含热点关键词",
+            "评论区互动提升权重",
+            "合适的话题+POI定位",
+        ],
+    },
 }
 
 
@@ -212,26 +834,64 @@ _WATERMARK_PATTERNS = re.compile(
 class PlatformRuleEngine:
     """平台规则引擎"""
 
-    def get_platforms(self) -> list[dict]:
-        """获取所有支持平台列表"""
-        return [
-            {
+    def get_platforms(self, enabled_only: bool = True) -> list[dict]:
+        """获取所有支持平台列表
+
+        Args:
+            enabled_only: 是否只返回启用的平台
+        """
+        platforms = []
+        for key, val in PLATFORM_RULES.items():
+            if enabled_only and not val.get("enabled", True):
+                continue
+            platforms.append({
                 "id": key,
                 "name": val["name"],
-                "icon": val["icon"],
-                "max_title_length": val["max_title_length"],
-                "max_content_length": val["max_content_length"],
-                "min_content_length": val["min_content_length"],
-                "supported_media": val["supported_media"],
-                "max_images": val["max_images"],
-            }
-            for key, val in PLATFORM_RULES.items()
-        ]
+                "platform_type": val.get("platform_type", ""),
+                "priority": val.get("priority", "P2"),
+                "enabled": val.get("enabled", True),
+                "max_title_length": val["title_rules"]["max_length"],
+                "min_title_length": val["title_rules"]["min_length"],
+                "max_content_length": val["content_length"]["max"],
+                "min_content_length": val["content_length"]["min"],
+                "recommended_content_length": val["content_length"]["recommended"],
+                "supported_media": val.get("supported_tags", []),
+                "ai_sensitivity": val.get("ai_sensitivity", {}),
+                "best_publish_times": val.get("best_publish_times", []),
+                "best_publish_days": val.get("best_publish_days", []),
+            })
+        return platforms
 
     def get_platform_rules(self, platform: str) -> dict | None:
         """获取指定平台的完整规则"""
         return PLATFORM_RULES.get(platform)
 
+    def get_platform_rule(self, platform: str, rule_category: str) -> dict | None:
+        """获取指定平台特定类别的规则
+
+        Args:
+            platform: 平台标识
+            rule_category: 规则类别 (title_rules, tag_rules, ai_sensitivity, etc.)
+        """
+        rules = PLATFORM_RULES.get(platform)
+        if rules is None:
+            return None
+        return rules.get(rule_category)
+
+    def get_all_rule_categories(self) -> list[str]:
+        """获取所有规则类别"""
+        return [
+            "content_length",
+            "title_rules",
+            "tag_rules",
+            "ai_sensitivity",
+            "sensitive_words",
+            "seo_rules",
+            "geo_rules",
+            "html_rules",
+            "publish_rules",
+        ]
+
     def validate_content(self, content: str, title: str, platform: str) -> dict:
         """
         校验内容是否符合平台规则
@@ -239,7 +899,7 @@ class PlatformRuleEngine:
         返回: {
             "is_valid": bool,
             "score": int (0-100),
-            "issues": [{"severity": "high|medium|low", "message": "..."}],
+            "issues": [{"severity": "high|medium|low", "message": "...", "category": "..."}],
             "passed": ["规则1", "规则2"]
         }
         """
@@ -248,7 +908,7 @@ class PlatformRuleEngine:
             return {
                 "is_valid": False,
                 "score": 0,
-                "issues": [{"severity": "high", "message": f"不支持的平台: {platform}"}],
+                "issues": [{"severity": "high", "message": f"不支持的平台: {platform}", "category": "platform"}],
                 "passed": [],
             }
 
@@ -257,32 +917,59 @@ class PlatformRuleEngine:
 
         # --- 标题长度 ---
         title_len = len(title)
-        max_title = rules["max_title_length"]
+        title_rules = rules.get("title_rules", {})
+        max_title = title_rules.get("max_length", 30)
+        min_title = title_rules.get("min_length", 5)
+
         if title_len > max_title:
             issues.append({
                 "severity": "high",
                 "message": f"标题长度 {title_len} 超过限制 {max_title}",
+                "category": "title_length",
+            })
+        elif title_len < min_title:
+            issues.append({
+                "severity": "medium",
+                "message": f"标题长度 {title_len} 低于最低要求 {min_title}",
+                "category": "title_length",
             })
         else:
             passed.append(f"标题长度合规（{title_len}/{max_title}）")
 
         # --- 内容长度 ---
         content_len = len(content)
-        max_content = rules["max_content_length"]
-        min_content = rules["min_content_length"]
+        content_rules = rules.get("content_length", {})
+        max_content = content_rules.get("max", 20000)
+        min_content = content_rules.get("min", 0)
+        recommended_content = content_rules.get("recommended", 0)
+
         if content_len > max_content:
             issues.append({
                 "severity": "high",
                 "message": f"内容长度 {content_len} 超过限制 {max_content}",
+                "category": "content_length",
             })
         elif min_content > 0 and content_len < min_content:
             issues.append({
                 "severity": "medium",
                 "message": f"内容长度 {content_len} 低于建议最低 {min_content}",
+                "category": "content_length",
             })
         else:
             passed.append(f"内容长度合规（{content_len}/{max_content}）")
 
+        # --- 标签规则 ---
+        tag_rules = rules.get("tag_rules", {})
+        min_tags = tag_rules.get("min_tags", 0)
+        max_tags = tag_rules.get("max_tags", 10)
+        # TODO: 需要传入标签数据进行验证
+
+        # --- AI敏感度检测 ---
+        ai_sensitivity = rules.get("ai_sensitivity", {})
+        if ai_sensitivity.get("humanization_required", False):
+            ai_issues = self._check_ai_patterns(content, ai_sensitivity)
+            issues.extend(ai_issues)
+
         # --- 平台特有规则 ---
         platform_specific = self._validate_platform_specific(content, title, platform)
         issues.extend(platform_specific["issues"])
@@ -307,6 +994,34 @@ class PlatformRuleEngine:
             "passed": passed,
         }
 
+    def _check_ai_patterns(self, content: str, ai_sensitivity: dict) -> list[dict]:
+        """检测AI写作模式"""
+        issues: list[dict] = []
+
+        banned_patterns = ai_sensitivity.get("banned_patterns", [])
+        banned_structures = ai_sensitivity.get("banned_structures", [])
+
+        # 检测禁用词汇
+        found_banned = [p for p in banned_patterns if p in content]
+        if found_banned:
+            issues.append({
+                "severity": "medium",
+                "message": f"发现AI写作特征词: {', '.join(found_banned[:3])}",
+                "category": "ai_pattern",
+            })
+
+        # 检测禁用结构
+        for pattern in banned_structures:
+            if re.search(pattern, content):
+                issues.append({
+                    "severity": "medium",
+                    "message": "发现AI典型对称结构",
+                    "category": "ai_pattern",
+                })
+                break
+
+        return issues
+
     def _validate_platform_specific(
         self, content: str, title: str, platform: str
     ) -> dict:
@@ -320,6 +1035,7 @@ class PlatformRuleEngine:
                 issues.append({
                     "severity": "high",
                     "message": "包含诱导分享/关注语句",
+                    "category": "platform_rule",
                 })
             else:
                 passed.append("无诱导分享/关注语句")
@@ -329,6 +1045,7 @@ class PlatformRuleEngine:
                 issues.append({
                     "severity": "medium",
                     "message": "标题包含连续特殊符号",
+                    "category": "title_format",
                 })
             else:
                 passed.append("标题无连续特殊符号")
@@ -338,6 +1055,7 @@ class PlatformRuleEngine:
                 issues.append({
                     "severity": "high",
                     "message": "正文包含外部链接（仅支持公众号链接和小程序）",
+                    "category": "platform_rule",
                 })
             else:
                 passed.append("无外部链接")
@@ -350,6 +1068,7 @@ class PlatformRuleEngine:
                 issues.append({
                     "severity": "medium",
                     "message": f"疑似营销用语: {', '.join(found_marketing)}",
+                    "category": "platform_rule",
                 })
             else:
                 passed.append("未检测到过度营销用语")
@@ -361,11 +1080,13 @@ class PlatformRuleEngine:
                 issues.append({
                     "severity": "medium",
                     "message": f"正文建议300-800字，当前 {content_len} 字",
+                    "category": "content_length",
                 })
             elif content_len < 300:
                 issues.append({
                     "severity": "low",
                     "message": f"正文建议300-800字，当前仅 {content_len} 字",
+                    "category": "content_length",
                 })
             else:
                 passed.append(f"正文字数适宜（{content_len}字）")
@@ -377,6 +1098,7 @@ class PlatformRuleEngine:
                 issues.append({
                     "severity": "high",
                     "message": f"疑似其他平台引流: {', '.join(found_cross)}",
+                    "category": "platform_rule",
                 })
             else:
                 passed.append("未检测到其他平台引流信息")
@@ -388,6 +1110,7 @@ class PlatformRuleEngine:
                 issues.append({
                     "severity": "high",
                     "message": f"标题含标题党词汇: {', '.join(found_clickbait)}",
+                    "category": "title_content",
                 })
             else:
                 passed.append("标题无标题党词汇")
@@ -398,6 +1121,7 @@ class PlatformRuleEngine:
                 issues.append({
                     "severity": "high",
                     "message": "内容包含其他平台水印信息",
+                    "category": "platform_rule",
                 })
             else:
                 passed.append("未检测到其他平台水印")
@@ -410,3 +1134,35 @@ class PlatformRuleEngine:
         if rules is None:
             return []
         return rules.get("seo_tips", [])
+
+    def get_ai_humanization_config(self, platform: str) -> dict | None:
+        """获取平台去AI化配置"""
+        rules = PLATFORM_RULES.get(platform)
+        if rules is None:
+            return None
+        return rules.get("ai_sensitivity", {})
+
+    def get_sensitive_words_config(self, platform: str) -> dict | None:
+        """获取平台敏感词配置"""
+        rules = PLATFORM_RULES.get(platform)
+        if rules is None:
+            return None
+        return rules.get("sensitive_words", {})
+
+    def get_seo_config(self, platform: str) -> dict | None:
+        """获取平台SEO配置"""
+        rules = PLATFORM_RULES.get(platform)
+        if rules is None:
+            return None
+        return rules.get("seo_rules", {})
+
+    def get_html_config(self, platform: str) -> dict | None:
+        """获取平台HTML规则配置"""
+        rules = PLATFORM_RULES.get(platform)
+        if rules is None:
+            return None
+        return rules.get("html_rules", {})
+
+
+# 导出单例
+rule_engine = PlatformRuleEngine()
diff --git a/backend/app/services/distribution/rule_service.py b/backend/app/services/distribution/rule_service.py
new file mode 100644
index 0000000..09837ee
--- /dev/null
+++ b/backend/app/services/distribution/rule_service.py
@@ -0,0 +1,207 @@
+"""平台规则管理服务 - 提供规则 CRUD 和内容验证功能"""
+
+import logging
+import json
+import re
+from datetime import datetime
+from typing import Optional, Any
+
+from app.services.distribution.platform_rules import (
+    PLATFORM_RULES,
+    PlatformRuleEngine,
+    rule_engine as default_rule_engine,
+    AI_PATTERNS,
+)
+
+logger = logging.getLogger(__name__)
+
+
+class PlatformRuleService:
+    """平台规则管理服务"""
+
+    def __init__(self):
+        self._engine = default_rule_engine
+
+    def get_all_platforms(self, enabled_only: bool = True) -> list[dict]:
+        """获取所有平台列表
+
+        Args:
+            enabled_only: 是否只返回启用的平台
+
+        Returns:
+            平台列表
+        """
+        return self._engine.get_platforms(enabled_only=enabled_only)
+
+    def get_platform_detail(self, platform_id: str) -> Optional[dict]:
+        """获取平台详情
+
+        Args:
+            platform_id: 平台标识
+
+        Returns:
+            平台完整规则，如果不存在返回 None
+        """
+        return self._engine.get_platform_rules(platform_id)
+
+    def get_rule_category(
+        self, platform_id: str, rule_category: str
+    ) -> Optional[dict]:
+        """获取特定规则类别
+
+        Args:
+            platform_id: 平台标识
+            rule_category: 规则类别
+
+        Returns:
+            规则配置
+        """
+        return self._engine.get_platform_rule(platform_id, rule_category)
+
+    def validate_content(
+        self, content: str, title: str, platform_id: str
+    ) -> dict:
+        """验证内容是否符合平台规则
+
+        Args:
+            content: 内容正文
+            title: 标题
+            platform_id: 平台标识
+
+        Returns:
+            验证结果
+        """
+        return self._engine.validate_content(content, title, platform_id)
+
+    def detect_ai_patterns(self, content: str, platform_id: str) -> list[dict]:
+        """检测内容中的AI写作模式
+
+        Args:
+            content: 待检测内容
+            platform_id: 平台标识
+
+        Returns:
+            检测到的AI模式列表
+        """
+        ai_config = self._engine.get_ai_humanization_config(platform_id)
+        if not ai_config:
+            return []
+
+        detected = []
+        banned_patterns = ai_config.get("banned_patterns", [])
+
+        for pattern in banned_patterns:
+            if pattern in content:
+                detected.append({
+                    "pattern": pattern,
+                    "type": "banned_word",
+                    "severity": "high",
+                })
+
+        # 检测禁用结构
+        banned_structures = ai_config.get("banned_structures", [])
+        for structure in banned_structures:
+            if re.search(structure, content):
+                detected.append({
+                    "pattern": structure,
+                    "type": "banned_structure",
+                    "severity": "medium",
+                })
+
+        return detected
+
+    def get_ai_humanization_config(self, platform_id: str) -> Optional[dict]:
+        """获取平台去AI化配置"""
+        return self._engine.get_ai_humanization_config(platform_id)
+
+    def get_sensitive_words_config(self, platform_id: str) -> Optional[dict]:
+        """获取平台敏感词配置"""
+        return self._engine.get_sensitive_words_config(platform_id)
+
+    def get_seo_config(self, platform_id: str) -> Optional[dict]:
+        """获取平台SEO配置"""
+        return self._engine.get_seo_config(platform_id)
+
+    def get_html_config(self, platform_id: str) -> Optional[dict]:
+        """获取平台HTML配置"""
+        return self._engine.get_html_config(platform_id)
+
+    def get_optimization_tips(self, platform_id: str) -> list[str]:
+        """获取平台优化建议"""
+        return self._engine.get_optimization_tips(platform_id)
+
+    def compare_rules(
+        self, platform_id: str, old_rules: dict, new_rules: dict
+    ) -> list[dict]:
+        """对比规则变更
+
+        Args:
+            platform_id: 平台标识
+            old_rules: 旧规则
+            new_rules: 新规则
+
+        Returns:
+            差异列表
+        """
+        diffs = []
+
+        def flatten_dict(d: dict, parent_key: str = "") -> dict:
+            """将嵌套字典展平为点分隔的键值对"""
+            items = []
+            for k, v in d.items():
+                new_key = f"{parent_key}.{k}" if parent_key else k
+                if isinstance(v, dict):
+                    items.extend(flatten_dict(v, new_key).items())
+                else:
+                    items.append((new_key, v))
+            return dict(items)
+
+        old_flat = flatten_dict(old_rules)
+        new_flat = flatten_dict(new_rules)
+
+        all_keys = set(old_flat.keys()) | set(new_flat.keys())
+
+        for key in all_keys:
+            old_val = old_flat.get(key)
+            new_val = new_flat.get(key)
+            if old_val != new_val:
+                diffs.append({
+                    "field": key,
+                    "old_value": old_val,
+                    "new_value": new_val,
+                })
+
+        return diffs
+
+    def format_content_for_platform(
+        self, content: str, platform_id: str, target_format: str = "html"
+    ) -> str:
+        """将内容格式化为平台特定格式
+
+        Args:
+            content: 原始内容
+            platform_id: 目标平台
+            target_format: 目标格式 (html/markdown/plain)
+
+        Returns:
+            格式化后的内容
+        """
+        rules = self._engine.get_platform_rules(platform_id)
+        if not rules:
+            return content
+
+        html_config = rules.get("html_rules", {})
+        supported_tags = html_config.get("supported_tags", [])
+        banned_tags = html_config.get("banned_tags", [])
+
+        # 移除禁用的标签
+        formatted = content
+        for tag in banned_tags:
+            formatted = re.sub(f"<{tag}[^>]*>.*?</{tag}>", "", formatted, flags=re.DOTALL)
+            formatted = re.sub(f"<{tag}[^>]*/?>", "", formatted)
+
+        return formatted
+
+
+# 导出单例
+platform_rule_service = PlatformRuleService()
diff --git a/frontend/app/(dashboard)/dashboard/content/editor/page.tsx b/frontend/app/(dashboard)/dashboard/content/editor/page.tsx
index cd29264..fbc28ae 100644
--- a/frontend/app/(dashboard)/dashboard/content/editor/page.tsx
+++ b/frontend/app/(dashboard)/dashboard/content/editor/page.tsx
@@ -1,20 +1,329 @@
 "use client";
 
-import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import { useState, useEffect } from "react";
+import { Card, CardContent, CardDescription, CardHeader, CardTitle } from "@/components/ui/card";
+import { Badge } from "@/components/ui/badge";
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import { Label } from "@/components/ui/label";
+import { Textarea } from "@/components/ui/textarea";
+import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
+import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select";
+import { platformRulesApi, PlatformBrief, ContentValidationResponse } from "@/lib/api/platform-rules";
+
+interface OptimizedContent {
+  title: string;
+  content: string;
+  platform: string;
+  tips: string[];
+}
 
 export default function ContentEditorPage() {
+  const [platforms, setPlatforms] = useState<PlatformBrief[]>([]);
+  const [selectedPlatform, setSelectedPlatform] = useState<string>("zhihu");
+  const [title, setTitle] = useState("");
+  const [content, setContent] = useState("");
+  const [optimizedContent, setOptimizedContent] = useState<OptimizedContent | null>(null);
+  const [validationResult, setValidationResult] = useState<ContentValidationResponse | null>(null);
+  const [loading, setLoading] = useState(true);
+  const [validating, setValidating] = useState(false);
+  const [optimizing, setOptimizing] = useState(false);
+
+  useEffect(() => {
+    loadPlatforms();
+  }, []);
+
+  const loadPlatforms = async () => {
+    try {
+      setLoading(true);
+      const response = await platformRulesApi.listPlatforms();
+      setPlatforms(response.platforms);
+    } catch (error) {
+      console.error("加载平台列表失败:", error);
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  const handleValidate = async () => {
+    if (!content || !title) return;
+
+    try {
+      setValidating(true);
+      const result = await platformRulesApi.validateContent(selectedPlatform, content, title);
+      setValidationResult(result);
+    } catch (error) {
+      console.error("验证失败:", error);
+    } finally {
+      setValidating(false);
+    }
+  };
+
+  const handleOptimize = async () => {
+    if (!content || !title) return;
+
+    try {
+      setOptimizing(true);
+      // 获取平台配置
+      const platformDetail = await platformRulesApi.getPlatformDetail(selectedPlatform);
+      const tips = await platformRulesApi.getOptimizationTips(selectedPlatform);
+
+      // 模拟优化处理（实际应调用后端API）
+      setOptimizedContent({
+        title: title,
+        content: content,
+        platform: selectedPlatform,
+        tips: tips.tips || [],
+      });
+    } catch (error) {
+      console.error("优化失败:", error);
+    } finally {
+      setOptimizing(false);
+    }
+  };
+
+  const handleCopyContent = (format: "html" | "markdown" | "text") => {
+    if (!optimizedContent) return;
+
+    let copyText = "";
+    switch (format) {
+      case "html":
+        // 简单的HTML格式化
+        copyText = `<h1>${optimizedContent.title}</h1>\n<p>${optimizedContent.content.replace(/\n\n/g, "</p><p>")}</p>`;
+        break;
+      case "markdown":
+        copyText = `# ${optimizedContent.title}\n\n${optimizedContent.content}`;
+        break;
+      case "text":
+        copyText = `${optimizedContent.title}\n\n${optimizedContent.content}`;
+        break;
+    }
+
+    navigator.clipboard.writeText(copyText);
+  };
+
+  if (loading) {
+    return (
+      <div className="flex items-center justify-center h-64">
+        <div className="text-muted-foreground">加载中...</div>
+      </div>
+    );
+  }
+
   return (
     <div className="space-y-6">
       <div>
-        <h1 className="text-2xl font-bold tracking-tight">内容编辑</h1>
-        <p className="text-muted-foreground">创建和编辑GEO优化内容</p>
+        <h1 className="text-2xl font-bold tracking-tight">内容编辑器</h1>
+        <p className="text-muted-foreground">创建和优化GEO内容</p>
       </div>
+
+      <div className="grid grid-cols-1 lg:grid-cols-3 gap-6">
+        {/* 左侧: 编辑区 */}
+        <Card className="lg:col-span-2">
+          <CardHeader>
+            <div className="flex items-center justify-between">
+              <div>
+                <CardTitle>内容编辑</CardTitle>
+                <CardDescription>编写和编辑内容</CardDescription>
+              </div>
+              <Select value={selectedPlatform} onValueChange={setSelectedPlatform}>
+                <SelectTrigger className="w-[180px]">
+                  <SelectValue placeholder="选择平台" />
+                </SelectTrigger>
+                <SelectContent>
+                  {platforms.map((p) => (
+                    <SelectItem key={p.id} value={p.id}>
+                      {p.name}
+                    </SelectItem>
+                  ))}
+                </SelectContent>
+              </Select>
+            </div>
+          </CardHeader>
+          <CardContent className="space-y-4">
+            <div className="space-y-2">
+              <Label htmlFor="title">标题</Label>
+              <Input
+                id="title"
+                placeholder="输入文章标题"
+                value={title}
+                onChange={(e) => setTitle(e.target.value)}
+              />
+            </div>
+
+            <div className="space-y-2">
+              <Label htmlFor="content">正文内容</Label>
+              <Textarea
+                id="content"
+                placeholder="输入文章内容..."
+                className="min-h-[400px] font-mono text-sm"
+                value={content}
+                onChange={(e) => setContent(e.target.value)}
+              />
+            </div>
+
+            <div className="flex gap-2">
+              <Button
+                variant="outline"
+                onClick={handleValidate}
+                disabled={validating || !content || !title}
+              >
+                {validating ? "验证中..." : "验证内容"}
+              </Button>
+              <Button
+                onClick={handleOptimize}
+                disabled={optimizing || !content || !title}
+              >
+                {optimizing ? "优化中..." : "一键优化"}
+              </Button>
+            </div>
+
+            {/* 验证结果 */}
+            {validationResult && (
+              <div className="space-y-2">
+                <div className="flex items-center gap-2">
+                  <h4 className="font-semibold">验证结果</h4>
+                  <Badge
+                    variant={validationResult.is_valid ? "default" : "destructive"}
+                    className={validationResult.is_valid ? "bg-green-600" : ""}
+                  >
+                    {validationResult.is_valid ? "通过" : "未通过"}
+                  </Badge>
+                  <Badge variant="outline">
+                    得分: {validationResult.score}
+                  </Badge>
+                </div>
+
+                {validationResult.issues.length > 0 && (
+                  <div className="space-y-1">
+                    {validationResult.issues.map((issue, i) => (
+                      <div
+                        key={i}
+                        className={`text-sm p-2 rounded ${
+                          issue.severity === "high"
+                            ? "bg-red-50 text-red-800"
+                            : issue.severity === "medium"
+                            ? "bg-yellow-50 text-yellow-800"
+                            : "bg-blue-50 text-blue-800"
+                        }`}
+                      >
+                        <span className="font-medium">[{issue.severity.toUpperCase()}]</span>{" "}
+                        {issue.message}
+                      </div>
+                    ))}
+                  </div>
+                )}
+
+                {validationResult.passed.length > 0 && (
+                  <div className="space-y-1">
+                    <h5 className="text-sm font-medium text-muted-foreground">已通过规则:</h5>
+                    {validationResult.passed.map((p, i) => (
+                      <div key={i} className="text-sm text-green-700">
+                        ✓ {p}
+                      </div>
+                    ))}
+                  </div>
+                )}
+              </div>
+            )}
+          </CardContent>
+        </Card>
+
+        {/* 右侧: 预览和工具 */}
+        <Card>
+          <CardHeader>
+            <CardTitle className="text-lg">优化与预览</CardTitle>
+            <CardDescription>查看优化后的内容</CardDescription>
+          </CardHeader>
+          <CardContent className="space-y-4">
+            {!optimizedContent ? (
+              <div className="flex items-center justify-center h-64 text-muted-foreground">
+                <div className="text-center">
+                  <p>点击"一键优化"开始</p>
+                </div>
+              </div>
+            ) : (
+              <Tabs defaultValue="preview" className="space-y-4">
+                <TabsList className="grid w-full grid-cols-2">
+                  <TabsTrigger value="preview">预览</TabsTrigger>
+                  <TabsTrigger value="tips">优化建议</TabsTrigger>
+                </TabsList>
+
+                <TabsContent value="preview" className="space-y-4">
+                  <div className="space-y-2">
+                    <h4 className="font-semibold text-lg">{optimizedContent.title}</h4>
+                    <div className="text-sm whitespace-pre-wrap">
+                      {optimizedContent.content}
+                    </div>
+                  </div>
+
+                  <div className="space-y-2">
+                    <h5 className="font-medium">复制为:</h5>
+                    <div className="flex flex-wrap gap-2">
+                      <Button size="sm" variant="outline" onClick={() => handleCopyContent("text")}>
+                        纯文本
+                      </Button>
+                      <Button size="sm" variant="outline" onClick={() => handleCopyContent("markdown")}>
+                        Markdown
+                      </Button>
+                      <Button size="sm" variant="outline" onClick={() => handleCopyContent("html")}>
+                        HTML
+                      </Button>
+                    </div>
+                  </div>
+                </TabsContent>
+
+                <TabsContent value="tips">
+                  <div className="space-y-2">
+                    {optimizedContent.tips.length > 0 ? (
+                      optimizedContent.tips.map((tip, i) => (
+                        <div key={i} className="text-sm p-2 bg-muted rounded">
+                          {tip}
+                        </div>
+                      ))
+                    ) : (
+                      <p className="text-sm text-muted-foreground">暂无优化建议</p>
+                    )}
+                  </div>
+                </TabsContent>
+              </Tabs>
+            )}
+          </CardContent>
+        </Card>
+      </div>
+
+      {/* 优化流程说明 */}
       <Card>
         <CardHeader>
-          <CardTitle>功能开发中</CardTitle>
+          <CardTitle>优化流程</CardTitle>
         </CardHeader>
         <CardContent>
-          <p>此功能正在开发中，敬请期待。</p>
+          <div className="grid grid-cols-1 md:grid-cols-4 gap-4">
+            <div className="p-4 border rounded-lg">
+              <div className="font-semibold mb-2">1. 去AI化</div>
+              <p className="text-sm text-muted-foreground">
+                基于平台AI敏感度，消除AI写作特征，使用更自然的表达方式
+              </p>
+            </div>
+            <div className="p-4 border rounded-lg">
+              <div className="font-semibold mb-2">2. 敏感词过滤</div>
+              <p className="text-sm text-muted-foreground">
+                根据平台敏感词规则，自动过滤或替换敏感内容
+              </p>
+            </div>
+            <div className="p-4 border rounded-lg">
+              <div className="font-semibold mb-2">3. SEO优化</div>
+              <p className="text-sm text-muted-foreground">
+                调整关键词密度和位置，优化搜索引擎排名
+              </p>
+            </div>
+            <div className="p-4 border rounded-lg">
+              <div className="font-semibold mb-2">4. 平台适配</div>
+              <p className="text-sm text-muted-foreground">
+                转换内容格式，适配目标平台的HTML规则和结构偏好
+              </p>
+            </div>
+          </div>
         </CardContent>
       </Card>
     </div>
diff --git a/frontend/app/(dashboard)/dashboard/settings/platforms/page.tsx b/frontend/app/(dashboard)/dashboard/settings/platforms/page.tsx
new file mode 100644
index 0000000..4f79ce3
--- /dev/null
+++ b/frontend/app/(dashboard)/dashboard/settings/platforms/page.tsx
@@ -0,0 +1,368 @@
+"use client";
+
+import { useState, useEffect } from "react";
+import { Card, CardContent, CardDescription, CardHeader, CardTitle } from "@/components/ui/card";
+import { Badge } from "@/components/ui/badge";
+import { Button } from "@/components/ui/button";
+import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
+import { platformRulesApi, PlatformBrief, PlatformDetailResponse } from "@/lib/api/platform-rules";
+
+const PRIORITY_COLORS: Record<string, string> = {
+  P0: "bg-red-100 text-red-800",
+  P1: "bg-yellow-100 text-yellow-800",
+  P2: "bg-green-100 text-green-800",
+};
+
+const SENSITIVITY_COLORS: Record<string, string> = {
+  high: "bg-red-100 text-red-800",
+  medium: "bg-yellow-100 text-yellow-800",
+  low: "bg-green-100 text-green-800",
+};
+
+export default function PlatformRulesPage() {
+  const [platforms, setPlatforms] = useState<PlatformBrief[]>([]);
+  const [selectedPlatform, setSelectedPlatform] = useState<string | null>(null);
+  const [platformDetail, setPlatformDetail] = useState<PlatformDetailResponse | null>(null);
+  const [loading, setLoading] = useState(true);
+  const [detailLoading, setDetailLoading] = useState(false);
+
+  useEffect(() => {
+    loadPlatforms();
+  }, []);
+
+  useEffect(() => {
+    if (selectedPlatform) {
+      loadPlatformDetail(selectedPlatform);
+    }
+  }, [selectedPlatform]);
+
+  const loadPlatforms = async () => {
+    try {
+      setLoading(true);
+      const response = await platformRulesApi.listPlatforms();
+      setPlatforms(response.platforms);
+      if (response.platforms.length > 0 && !selectedPlatform) {
+        setSelectedPlatform(response.platforms[0].id);
+      }
+    } catch (error) {
+      console.error("加载平台列表失败:", error);
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  const loadPlatformDetail = async (platformId: string) => {
+    try {
+      setDetailLoading(true);
+      const detail = await platformRulesApi.getPlatformDetail(platformId);
+      setPlatformDetail(detail);
+    } catch (error) {
+      console.error("加载平台详情失败:", error);
+    } finally {
+      setDetailLoading(false);
+    }
+  };
+
+  if (loading) {
+    return (
+      <div className="flex items-center justify-center h-64">
+        <div className="text-muted-foreground">加载中...</div>
+      </div>
+    );
+  }
+
+  return (
+    <div className="space-y-6">
+      <div>
+        <h1 className="text-2xl font-bold tracking-tight">平台规则管理</h1>
+        <p className="text-muted-foreground">管理各内容平台的发布规则和配置</p>
+      </div>
+
+      <div className="grid grid-cols-1 lg:grid-cols-4 gap-6">
+        {/* 平台列表 */}
+        <Card className="lg:col-span-1">
+          <CardHeader>
+            <CardTitle className="text-lg">平台列表</CardTitle>
+            <CardDescription>共 {platforms.length} 个平台</CardDescription>
+          </CardHeader>
+          <CardContent className="p-0">
+            <div className="divide-y">
+              {platforms.map((platform) => (
+                <button
+                  key={platform.id}
+                  onClick={() => setSelectedPlatform(platform.id)}
+                  className={`w-full px-4 py-3 text-left hover:bg-muted/50 transition-colors ${
+                    selectedPlatform === platform.id ? "bg-muted" : ""
+                  }`}
+                >
+                  <div className="flex items-center justify-between">
+                    <span className="font-medium">{platform.name}</span>
+                    <Badge className={PRIORITY_COLORS[platform.priority] || "bg-gray-100"}>
+                      {platform.priority}
+                    </Badge>
+                  </div>
+                  <div className="text-sm text-muted-foreground mt-1">
+                    {platform.platform_type}
+                  </div>
+                </button>
+              ))}
+            </div>
+          </CardContent>
+        </Card>
+
+        {/* 平台详情 */}
+        <Card className="lg:col-span-3">
+          <CardHeader>
+            <div className="flex items-center justify-between">
+              <div>
+                <CardTitle className="text-xl">
+                  {platformDetail?.name || "选择平台"}
+                </CardTitle>
+                <CardDescription>
+                  {platformDetail?.platform_type} - {platformDetail?.id}
+                </CardDescription>
+              </div>
+              {platformDetail && (
+                <div className="flex gap-2">
+                  <Badge
+                    className={
+                      SENSITIVITY_COLORS[
+                        platformDetail.ai_sensitivity.detection_level
+                      ] || "bg-gray-100"
+                    }
+                  >
+                    AI检测: {platformDetail.ai_sensitivity.detection_level}
+                  </Badge>
+                  <Badge variant={platformDetail.enabled ? "default" : "secondary"}>
+                    {platformDetail.enabled ? "已启用" : "已禁用"}
+                  </Badge>
+                </div>
+              )}
+            </div>
+          </CardHeader>
+          <CardContent>
+            {detailLoading ? (
+              <div className="flex items-center justify-center h-64">
+                <div className="text-muted-foreground">加载详情中...</div>
+              </div>
+            ) : !platformDetail ? (
+              <div className="flex items-center justify-center h-64">
+                <div className="text-muted-foreground">请选择一个平台查看详情</div>
+              </div>
+            ) : (
+              <Tabs defaultValue="basic" className="space-y-4">
+                <TabsList>
+                  <TabsTrigger value="basic">基础配置</TabsTrigger>
+                  <TabsTrigger value="ai">AI检测</TabsTrigger>
+                  <TabsTrigger value="sensitive">敏感词</TabsTrigger>
+                  <TabsTrigger value="seo">SEO规则</TabsTrigger>
+                  <TabsTrigger value="html">HTML规则</TabsTrigger>
+                  <TabsTrigger value="publish">发布规则</TabsTrigger>
+                </TabsList>
+
+                <TabsContent value="basic" className="space-y-4">
+                  <div className="grid grid-cols-2 gap-4">
+                    <div>
+                      <h4 className="font-semibold mb-2">内容长度</h4>
+                      <div className="text-sm space-y-1">
+                        <p>最小: {platformDetail.content_length.min} 字</p>
+                        <p>最大: {platformDetail.content_length.max} 字</p>
+                        <p>推荐: {platformDetail.content_length.recommended} 字</p>
+                      </div>
+                    </div>
+                    <div>
+                      <h4 className="font-semibold mb-2">结构偏好</h4>
+                      <div className="text-sm space-y-1">
+                        <p>引言: {platformDetail.structure_preference.has_intro ? "需要" : "不需要"}</p>
+                        <p>结论: {platformDetail.structure_preference.has_conclusion ? "需要" : "不需要"}</p>
+                        <p>目录: {platformDetail.structure_preference.has_toc ? "需要" : "不需要"}</p>
+                      </div>
+                    </div>
+                  </div>
+
+                  <div>
+                    <h4 className="font-semibold mb-2">标题规则</h4>
+                    <div className="text-sm space-y-1">
+                      <p>长度: {platformDetail.title_rules.min_length} - {platformDetail.title_rules.max_length} 字</p>
+                      <p>大小写: {platformDetail.title_rules.case_style}</p>
+                      {platformDetail.title_rules.avoid_patterns.length > 0 && (
+                        <p>避免: {platformDetail.title_rules.avoid_patterns.join(", ")}</p>
+                      )}
+                    </div>
+                  </div>
+
+                  <div>
+                    <h4 className="font-semibold mb-2">标签规则</h4>
+                    <div className="text-sm space-y-1">
+                      <p>数量: {platformDetail.tag_rules.min_tags} - {platformDetail.tag_rules.max_tags} 个</p>
+                      <p>样式: {platformDetail.tag_rules.tag_style}</p>
+                    </div>
+                  </div>
+
+                  <div>
+                    <h4 className="font-semibold mb-2">最佳发布时间</h4>
+                    <div className="flex flex-wrap gap-2">
+                      {platformDetail.best_publish_times.map((time, i) => (
+                        <Badge key={i} variant="outline">{time}</Badge>
+                      ))}
+                    </div>
+                  </div>
+
+                  <div>
+                    <h4 className="font-semibold mb-2">最佳发布日</h4>
+                    <div className="flex flex-wrap gap-2">
+                      {platformDetail.best_publish_days.map((day, i) => (
+                        <Badge key={i} variant="outline">{day}</Badge>
+                      ))}
+                    </div>
+                  </div>
+                </TabsContent>
+
+                <TabsContent value="ai" className="space-y-4">
+                  <div>
+                    <h4 className="font-semibold mb-2">AI检测级别</h4>
+                    <Badge className={SENSITIVITY_COLORS[platformDetail.ai_sensitivity.detection_level]}>
+                      {platformDetail.ai_sensitivity.detection_level.toUpperCase()}
+                    </Badge>
+                    <p className="text-sm text-muted-foreground mt-2">
+                      {platformDetail.ai_sensitivity.humanization_required
+                        ? "需要去AI化处理"
+                        : "无需去AI化处理"}
+                    </p>
+                  </div>
+
+                  <div>
+                    <h4 className="font-semibold mb-2">禁用模式</h4>
+                    {platformDetail.ai_sensitivity.banned_patterns.length > 0 ? (
+                      <div className="flex flex-wrap gap-1">
+                        {platformDetail.ai_sensitivity.banned_patterns.map((pattern, i) => (
+                          <Badge key={i} variant="destructive" className="text-xs">
+                            {pattern}
+                          </Badge>
+                        ))}
+                      </div>
+                    ) : (
+                      <p className="text-sm text-muted-foreground">无</p>
+                    )}
+                  </div>
+
+                  <div>
+                    <h4 className="font-semibold mb-2">安全模式</h4>
+                    {platformDetail.ai_sensitivity.safe_patterns.length > 0 ? (
+                      <div className="flex flex-wrap gap-1">
+                        {platformDetail.ai_sensitivity.safe_patterns.map((pattern, i) => (
+                          <Badge key={i} variant="default" className="text-xs bg-green-600">
+                            {pattern}
+                          </Badge>
+                        ))}
+                      </div>
+                    ) : (
+                      <p className="text-sm text-muted-foreground">无</p>
+                    )}
+                  </div>
+                </TabsContent>
+
+                <TabsContent value="sensitive" className="space-y-4">
+                  <div>
+                    <h4 className="font-semibold mb-2">敏感词配置</h4>
+                    <div className="text-sm space-y-2">
+                      <p>需要检查: {platformDetail.sensitive_words.check_required ? "是" : "否"}</p>
+                      <p>自动过滤: {platformDetail.sensitive_words.auto_filter ? "是" : "否"}</p>
+                      <p>最大容忍度: {platformDetail.sensitive_words.max_tolerance}</p>
+                    </div>
+                  </div>
+
+                  <div>
+                    <h4 className="font-semibold mb-2">敏感词分类</h4>
+                    <div className="flex flex-wrap gap-2">
+                      {platformDetail.sensitive_words.categories.map((cat, i) => (
+                        <Badge key={i} variant="outline">{cat}</Badge>
+                      ))}
+                    </div>
+                  </div>
+                </TabsContent>
+
+                <TabsContent value="seo" className="space-y-4">
+                  <div>
+                    <h4 className="font-semibold mb-2">关键词密度</h4>
+                    <div className="text-sm space-y-1">
+                      <p>范围: {platformDetail.seo_rules.keyword_density.min}% - {platformDetail.seo_rules.keyword_density.max}%</p>
+                      <p>推荐: {platformDetail.seo_rules.keyword_density.recommended}%</p>
+                    </div>
+                  </div>
+
+                  <div>
+                    <h4 className="font-semibold mb-2">关键词位置</h4>
+                    <div className="flex flex-wrap gap-2">
+                      {platformDetail.seo_rules.keyword_position.map((pos, i) => (
+                        <Badge key={i} variant="outline">{pos}</Badge>
+                      ))}
+                    </div>
+                  </div>
+
+                  <div>
+                    <h4 className="font-semibold mb-2">内链规则</h4>
+                    <div className="text-sm space-y-1">
+                      <p>
+                        内链数量: {platformDetail.seo_rules.internal_links.min || 0} - {platformDetail.seo_rules.internal_links.max || 0}
+                      </p>
+                    </div>
+                  </div>
+                </TabsContent>
+
+                <TabsContent value="html" className="space-y-4">
+                  <div>
+                    <h4 className="font-semibold mb-2">支持的HTML标签</h4>
+                    <div className="flex flex-wrap gap-1">
+                      {platformDetail.html_rules.supported_tags.map((tag, i) => (
+                        <Badge key={i} variant="default" className="text-xs">
+                          &lt;{tag}&gt;
+                        </Badge>
+                      ))}
+                    </div>
+                  </div>
+
+                  <div>
+                    <h4 className="font-semibold mb-2">禁用的HTML标签</h4>
+                    <div className="flex flex-wrap gap-1">
+                      {platformDetail.html_rules.banned_tags.map((tag, i) => (
+                        <Badge key={i} variant="destructive" className="text-xs">
+                          &lt;{tag}&gt;
+                        </Badge>
+                      ))}
+                    </div>
+                  </div>
+
+                  <div>
+                    <h4 className="font-semibold mb-2">媒体支持</h4>
+                    <div className="text-sm space-y-1">
+                      <p>图片: {platformDetail.html_rules.image_support ? "支持" : "不支持"}</p>
+                      <p>视频: {platformDetail.html_rules.video_support ? "支持" : "不支持"}</p>
+                      <p>代码块: {platformDetail.html_rules.code_block_support ? "支持" : "不支持"}</p>
+                    </div>
+                  </div>
+                </TabsContent>
+
+                <TabsContent value="publish" className="space-y-4">
+                  <div>
+                    <h4 className="font-semibold mb-2">发布规则</h4>
+                    <div className="text-sm space-y-2">
+                      <p>自动发布: {platformDetail.publish_rules.auto_publish ? "是" : "否"}</p>
+                      <p>需要审核: {platformDetail.publish_rules.require_review ? "是" : "否"}</p>
+                      <p>发布时机: {platformDetail.publish_rules.publish_timing}</p>
+                    </div>
+                  </div>
+
+                  <div>
+                    <h4 className="font-semibold mb-2">内容风格</h4>
+                    <p className="text-sm">{platformDetail.content_style}</p>
+                  </div>
+                </TabsContent>
+              </Tabs>
+            )}
+          </CardContent>
+        </Card>
+      </div>
+    </div>
+  );
+}
diff --git a/frontend/components/layout/sidebar.tsx b/frontend/components/layout/sidebar.tsx
index 3900bb5..d086fee 100644
--- a/frontend/components/layout/sidebar.tsx
+++ b/frontend/components/layout/sidebar.tsx
@@ -19,6 +19,7 @@ import {
   BarChart3,
   Bot,
   Users,
+  Blocks,
 } from "lucide-react";
 
 const baseNavItems = [
@@ -27,6 +28,7 @@ const baseNavItems = [
   { name: "诊断分析", href: "/dashboard/diagnosis", icon: Stethoscope },
   { name: "策略制定", href: "/dashboard/strategy", icon: Lightbulb },
   { name: "内容管理", href: "/dashboard/content", icon: FileEdit },
+  { name: "内容编辑器", href: "/dashboard/content/editor", icon: FileEdit },
   { name: "分发执行", href: "/dashboard/publishing", icon: Send },
   { name: "监测优化", href: "/dashboard/monitoring", icon: BarChart3 },
   { name: "AI Agent", href: "/dashboard/agents", icon: Bot },
@@ -34,6 +36,7 @@ const baseNavItems = [
   { name: "查询管理", href: "/dashboard/queries", icon: Search },
   { name: "引用记录", href: "/dashboard/citations", icon: Quote },
   { name: "报告导出", href: "/dashboard/reports", icon: FileDown },
+  { name: "平台规则", href: "/dashboard/settings/platforms", icon: Blocks },
   { name: "设置", href: "/dashboard/settings", icon: Settings },
 ];
 
@@ -42,7 +45,10 @@ export function Sidebar() {
   const { data: session } = useSession();
 
   const navItems = session?.user?.is_admin
-    ? [...baseNavItems, { name: "管理后台", href: "/dashboard/admin", icon: Shield }]
+    ? [
+        ...baseNavItems,
+        { name: "管理后台", href: "/dashboard/admin", icon: Shield },
+      ]
     : baseNavItems;
 
   return (
@@ -64,7 +70,7 @@ export function Sidebar() {
                 "flex items-center rounded-lg px-4 py-3 text-sm font-medium transition-colors",
                 isActive
                   ? "bg-blue-600 text-white"
-                  : "text-slate-300 hover:bg-slate-800 hover:text-white"
+                  : "text-slate-300 hover:bg-slate-800 hover:text-white",
               )}
             >
               <item.icon className="mr-3 h-5 w-5" />
diff --git a/frontend/lib/api/index.ts b/frontend/lib/api/index.ts
index 134db9c..4b3d6a6 100644
--- a/frontend/lib/api/index.ts
+++ b/frontend/lib/api/index.ts
@@ -24,6 +24,7 @@ export { brandsApi } from "./brands";
 export type { CreateBrandPayload, UpdateBrandPayload, AddCompetitorPayload } from "./brands";
 export { suggestionsApi } from "./suggestions";
 export { onboardingApi } from "./onboarding";
+export { platformRulesApi } from "./platform-rules";
 
 // ── 类型导出 ───────────────────────────────────────────────────────────────────
 export type { Agent, AgentRunLog } from "./agents";
@@ -105,6 +106,7 @@ import { alertsApi } from "./alerts";
 import { brandsApi } from "./brands";
 import { suggestionsApi } from "./suggestions";
 import { onboardingApi } from "./onboarding";
+import { platformRulesApi } from "./platform-rules";
 
 /**
  * 聚合 API 对象，保持与原 `import { api } from "@/lib/api"` 的向后兼容。
@@ -129,4 +131,5 @@ export const api = {
   brands: brandsApi,
   suggestions: suggestionsApi,
   onboarding: onboardingApi,
+  platformRules: platformRulesApi,
 };
diff --git a/frontend/lib/api/platform-rules.ts b/frontend/lib/api/platform-rules.ts
new file mode 100644
index 0000000..d6c4218
--- /dev/null
+++ b/frontend/lib/api/platform-rules.ts
@@ -0,0 +1,341 @@
+/**
+ * 平台规则 API 客户端
+ * /api/v1/platforms
+ */
+
+import { fetchWithAuth } from "./client";
+
+// ============================================================
+// 类型定义
+// ============================================================
+
+export interface ContentLengthRule {
+  min: number;
+  max: number;
+  recommended: number;
+}
+
+export interface StructurePreference {
+  has_intro: boolean;
+  has_conclusion: boolean;
+  has_toc: boolean;
+}
+
+export interface TitleRule {
+  min_length: number;
+  max_length: number;
+  avoid_patterns: string[];
+  required_patterns: string[];
+  case_style: string;
+}
+
+export interface TagRule {
+  min_tags: number;
+  max_tags: number;
+  tag_style: string;
+}
+
+export interface AISensitivity {
+  detection_level: string;
+  banned_patterns: string[];
+  banned_structures: string[];
+  safe_patterns: string[];
+  humanization_required: boolean;
+}
+
+export interface SensitiveWordsConfig {
+  check_required: boolean;
+  categories: string[];
+  max_tolerance: number;
+  auto_filter: boolean;
+}
+
+export interface KeywordDensity {
+  min: number;
+  max: number;
+  recommended: number;
+}
+
+export interface SEORule {
+  keyword_density: KeywordDensity;
+  keyword_position: string[];
+  internal_links: Record<string, number>;
+}
+
+export interface GEORule {
+  citation_format: string;
+  source_attribution: boolean;
+  reference_style: string;
+}
+
+export interface HTMLRule {
+  supported_tags: string[];
+  banned_tags: string[];
+  image_support: boolean;
+  video_support: boolean;
+  code_block_support: boolean;
+}
+
+export interface PublishRule {
+  auto_publish: boolean;
+  require_review: boolean;
+  publish_timing: string;
+}
+
+export interface PlatformBrief {
+  id: string;
+  name: string;
+  platform_type: string;
+  priority: string;
+  enabled: boolean;
+}
+
+export interface PlatformListResponse {
+  platforms: PlatformBrief[];
+  total: number;
+}
+
+export interface PlatformDetailResponse {
+  id: string;
+  name: string;
+  platform_type: string;
+  priority: string;
+  enabled: boolean;
+  content_style: string;
+  content_length: ContentLengthRule;
+  structure_preference: StructurePreference;
+  title_rules: TitleRule;
+  tag_rules: TagRule;
+  ai_sensitivity: AISensitivity;
+  sensitive_words: SensitiveWordsConfig;
+  seo_rules: SEORule;
+  geo_rules: GEORule;
+  html_rules: HTMLRule;
+  publish_rules: PublishRule;
+  best_publish_times: string[];
+  best_publish_days: string[];
+  max_images: number;
+}
+
+export interface ValidationIssue {
+  severity: "high" | "medium" | "low";
+  message: string;
+  category: string;
+}
+
+export interface ContentValidationResponse {
+  is_valid: boolean;
+  score: number;
+  issues: ValidationIssue[];
+  passed: string[];
+}
+
+export interface RuleChangeHistory {
+  id: number;
+  platform_id: string;
+  platform_name: string;
+  changed_by: string;
+  change_summary: string;
+  change_type: string;
+  previous_rules: Record<string, unknown> | null;
+  new_rules: Record<string, unknown> | null;
+  created_at: string;
+}
+
+export interface RuleChangeHistoryResponse {
+  history: RuleChangeHistory[];
+  total: number;
+}
+
+export interface RuleUpdateRequest {
+  content_style?: string;
+  content_length?: ContentLengthRule;
+  structure_preference?: StructurePreference;
+  title_rules?: TitleRule;
+  tag_rules?: TagRule;
+  ai_sensitivity?: AISensitivity;
+  sensitive_words?: SensitiveWordsConfig;
+  seo_rules?: SEORule;
+  geo_rules?: GEORule;
+  html_rules?: HTMLRule;
+  publish_rules?: PublishRule;
+  enabled?: boolean;
+}
+
+export interface RuleUpdateResponse {
+  success: boolean;
+  platform_id: string;
+  message: string;
+  updated_at: string;
+}
+
+export interface DetectedAIPattern {
+  pattern: string;
+  type: string;
+  severity: string;
+}
+
+export interface DetectAIPatternsResponse {
+  platform_id: string;
+  content_length: number;
+  detected_patterns: DetectedAIPattern[];
+  total_detected: number;
+}
+
+// ============================================================
+// API 函数
+// ============================================================
+
+export const platformRulesApi = {
+  /**
+   * 获取所有平台列表
+   */
+  listPlatforms: async (token?: string, enabledOnly = true): Promise<PlatformListResponse> => {
+    return fetchWithAuth(
+      `/api/v1/platforms?enabled_only=${enabledOnly}`,
+      {},
+      token
+    ) as Promise<PlatformListResponse>;
+  },
+
+  /**
+   * 获取平台详情
+   */
+  getPlatformDetail: async (platformId: string, token?: string): Promise<PlatformDetailResponse> => {
+    return fetchWithAuth(
+      `/api/v1/platforms/${platformId}`,
+      {},
+      token
+    ) as Promise<PlatformDetailResponse>;
+  },
+
+  /**
+   * 获取规则类别列表
+   */
+  listRuleCategories: async (): Promise<{ categories: string[]; total: number }> => {
+    return fetchWithAuth("/api/v1/platforms/categories", {}) as Promise<{
+      categories: string[];
+      total: number;
+    }>;
+  },
+
+  /**
+   * 获取平台特定类别规则
+   */
+  getRuleCategory: async (
+    platformId: string,
+    ruleCategory: string,
+    token?: string
+  ): Promise<{ platform_id: string; rule_category: string; rule: unknown }> => {
+    return fetchWithAuth(
+      `/api/v1/platforms/${platformId}/rules/${ruleCategory}`,
+      {},
+      token
+    ) as Promise<{ platform_id: string; rule_category: string; rule: unknown }>;
+  },
+
+  /**
+   * 获取平台AI配置
+   */
+  getAIConfig: async (
+    platformId: string,
+    token?: string
+  ): Promise<{ platform_id: string; ai_sensitivity: AISensitivity }> => {
+    return fetchWithAuth(
+      `/api/v1/platforms/${platformId}/ai-config`,
+      {},
+      token
+    ) as Promise<{ platform_id: string; ai_sensitivity: AISensitivity }>;
+  },
+
+  /**
+   * 获取平台优化建议
+   */
+  getOptimizationTips: async (
+    platformId: string,
+    token?: string
+  ): Promise<{
+    platform_id: string;
+    platform_name: string;
+    content_style: string;
+    tips: string[];
+  }> => {
+    return fetchWithAuth(
+      `/api/v1/platforms/${platformId}/tips`,
+      {},
+      token
+    ) as Promise<{
+      platform_id: string;
+      platform_name: string;
+      content_style: string;
+      tips: string[];
+    }>;
+  },
+
+  /**
+   * 验证内容
+   */
+  validateContent: async (
+    platformId: string,
+    content: string,
+    title: string,
+    token?: string
+  ): Promise<ContentValidationResponse> => {
+    return fetchWithAuth(
+      `/api/v1/platforms/${platformId}/rules/validate`,
+      {
+        method: "POST",
+        body: JSON.stringify({ content, title }),
+      },
+      token
+    ) as Promise<ContentValidationResponse>;
+  },
+
+  /**
+   * 检测AI写作模式
+   */
+  detectAIPatterns: async (
+    platformId: string,
+    content: string,
+    token?: string
+  ): Promise<DetectAIPatternsResponse> => {
+    return fetchWithAuth(
+      `/api/v1/platforms/${platformId}/detect-ai-patterns?content=${encodeURIComponent(content)}`,
+      {},
+      token
+    ) as Promise<DetectAIPatternsResponse>;
+  },
+
+  /**
+   * 获取规则变更历史
+   */
+  getRuleHistory: async (
+    platformId: string,
+    limit = 20,
+    token?: string
+  ): Promise<RuleChangeHistoryResponse> => {
+    return fetchWithAuth(
+      `/api/v1/platforms/${platformId}/rules/history?limit=${limit}`,
+      {},
+      token
+    ) as Promise<RuleChangeHistoryResponse>;
+  },
+
+  /**
+   * 更新平台规则
+   */
+  updatePlatformRules: async (
+    platformId: string,
+    updateData: RuleUpdateRequest,
+    token?: string
+  ): Promise<RuleUpdateResponse> => {
+    return fetchWithAuth(
+      `/api/v1/platforms/${platformId}/rules`,
+      {
+        method: "PUT",
+        body: JSON.stringify(updateData),
+      },
+      token
+    ) as Promise<RuleUpdateResponse>;
+  },
+};