diff --git a/questions/cap-theorem.md b/questions/01-分布式系统/CAP理论和BASE理论.md similarity index 100% rename from questions/cap-theorem.md rename to questions/01-分布式系统/CAP理论和BASE理论.md diff --git a/questions/replication-delay.md b/questions/01-分布式系统/MySQL主从延迟.md similarity index 100% rename from questions/replication-delay.md rename to questions/01-分布式系统/MySQL主从延迟.md diff --git a/questions/consistency-hash.md b/questions/01-分布式系统/一致性哈希.md similarity index 100% rename from questions/consistency-hash.md rename to questions/01-分布式系统/一致性哈希.md diff --git a/questions/transaction-isolation.md b/questions/01-分布式系统/事务隔离级别.md similarity index 100% rename from questions/transaction-isolation.md rename to questions/01-分布式系统/事务隔离级别.md diff --git a/questions/distributed-id.md b/questions/01-分布式系统/分布式ID生成.md similarity index 100% rename from questions/distributed-id.md rename to questions/01-分布式系统/分布式ID生成.md diff --git a/questions/distributed-transaction.md b/questions/01-分布式系统/分布式事务.md similarity index 100% rename from questions/distributed-transaction.md rename to questions/01-分布式系统/分布式事务.md diff --git a/questions/distributed-lock.md b/questions/01-分布式系统/分布式锁.md similarity index 100% rename from questions/distributed-lock.md rename to questions/01-分布式系统/分布式锁.md diff --git a/questions/database-sharding.md b/questions/01-分布式系统/数据库分库分表.md similarity index 100% rename from questions/database-sharding.md rename to questions/01-分布式系统/数据库分库分表.md diff --git a/questions/lock-mechanism.md b/questions/01-分布式系统/数据库锁机制.md similarity index 100% rename from questions/lock-mechanism.md rename to questions/01-分布式系统/数据库锁机制.md diff --git a/questions/mybatis.md b/questions/02-数据库/MyBatis核心原理.md similarity index 100% rename from questions/mybatis.md rename to questions/02-数据库/MyBatis核心原理.md diff --git a/questions/mysql-index-optimization.md b/questions/02-数据库/MySQL索引优化.md similarity index 100% rename from questions/mysql-index-optimization.md rename to questions/02-数据库/MySQL索引优化.md diff --git a/questions/concurrentHashMap.md b/questions/03-缓存/ConcurrentHashMap原理.md similarity index 100% rename from questions/concurrentHashMap.md rename to questions/03-缓存/ConcurrentHashMap原理.md diff --git a/questions/alg-lru.md b/questions/03-缓存/LRU缓存实现.md similarity index 100% rename from questions/alg-lru.md rename to questions/03-缓存/LRU缓存实现.md diff --git a/questions/redis-data-structure.md b/questions/03-缓存/Redis数据结构.md similarity index 100% rename from questions/redis-data-structure.md rename to questions/03-缓存/Redis数据结构.md diff --git a/questions/docker.md b/questions/03-缓存/Redis架构.md similarity index 100% rename from questions/docker.md rename to questions/03-缓存/Redis架构.md diff --git a/questions/cache-problems.md b/questions/03-缓存/缓存穿透击穿雪崩.md similarity index 100% rename from questions/cache-problems.md rename to questions/03-缓存/缓存穿透击穿雪崩.md diff --git a/questions/message-queue.md b/questions/04-消息队列/消息队列(RocketMQ_Kafka).md similarity index 100% rename from questions/message-queue.md rename to questions/04-消息队列/消息队列(RocketMQ_Kafka).md diff --git a/questions/java-concurrent.md b/questions/05-并发编程/Java并发编程基础.md similarity index 100% rename from questions/java-concurrent.md rename to questions/05-并发编程/Java并发编程基础.md diff --git a/questions/thread-pool-params.md b/questions/05-并发编程/线程池核心参数.md similarity index 100% rename from questions/thread-pool-params.md rename to questions/05-并发编程/线程池核心参数.md diff --git a/questions/design-patterns.md b/questions/05-并发编程/设计模式.md similarity index 100% rename from questions/design-patterns.md rename to questions/05-并发编程/设计模式.md diff --git a/questions/rate-limiting.md b/questions/05-并发编程/限流策略与算法.md similarity index 100% rename from questions/rate-limiting.md rename to questions/05-并发编程/限流策略与算法.md diff --git a/questions/jvm-gc.md b/questions/06-JVM/JVM和垃圾回收.md similarity index 100% rename from questions/jvm-gc.md rename to questions/06-JVM/JVM和垃圾回收.md diff --git a/questions/microservices-gateway.md b/questions/07-系统设计/API网关.md similarity index 100% rename from questions/microservices-gateway.md rename to questions/07-系统设计/API网关.md diff --git a/questions/design-lbs.md b/questions/07-系统设计/LBS附近的人设计.md similarity index 100% rename from questions/design-lbs.md rename to questions/07-系统设计/LBS附近的人设计.md diff --git a/questions/rpc-framework.md b/questions/07-系统设计/RPC框架.md similarity index 100% rename from questions/rpc-framework.md rename to questions/07-系统设计/RPC框架.md diff --git a/questions/design-im.md b/questions/07-系统设计/即时通讯系统设计.md similarity index 100% rename from questions/design-im.md rename to questions/07-系统设计/即时通讯系统设计.md diff --git a/questions/service-mesh.md b/questions/07-系统设计/服务网格.md similarity index 100% rename from questions/service-mesh.md rename to questions/07-系统设计/服务网格.md diff --git a/questions/design-shorturl.md b/questions/07-系统设计/短链接系统设计.md similarity index 100% rename from questions/design-shorturl.md rename to questions/07-系统设计/短链接系统设计.md diff --git a/questions/design-feed.md b/questions/07-系统设计/社交信息流设计.md similarity index 100% rename from questions/design-feed.md rename to questions/07-系统设计/社交信息流设计.md diff --git a/questions/design-seckill.md b/questions/07-系统设计/秒杀系统设计.md similarity index 100% rename from questions/design-seckill.md rename to questions/07-系统设计/秒杀系统设计.md diff --git a/questions/system-design-general.md b/questions/07-系统设计/系统设计方法论.md similarity index 100% rename from questions/system-design-general.md rename to questions/07-系统设计/系统设计方法论.md diff --git a/questions/alg-btree.md b/questions/08-算法与数据结构/B+树原理.md similarity index 100% rename from questions/alg-btree.md rename to questions/08-算法与数据结构/B+树原理.md diff --git a/questions/alg-timingwheel.md b/questions/08-算法与数据结构/时间轮算法.md similarity index 100% rename from questions/alg-timingwheel.md rename to questions/08-算法与数据结构/时间轮算法.md diff --git a/questions/alg-redblacktree.md b/questions/08-算法与数据结构/红黑树原理.md similarity index 100% rename from questions/alg-redblacktree.md rename to questions/08-算法与数据结构/红黑树原理.md diff --git a/questions/alg-skip-list.md b/questions/08-算法与数据结构/跳表原理.md similarity index 100% rename from questions/alg-skip-list.md rename to questions/08-算法与数据结构/跳表原理.md diff --git a/questions/network-tcpip.md b/questions/09-网络与安全/TCP_IP网络协议.md similarity index 100% rename from questions/network-tcpip.md rename to questions/09-网络与安全/TCP_IP网络协议.md diff --git a/questions/security-encryption.md b/questions/09-网络与安全/加密与安全.md similarity index 100% rename from questions/security-encryption.md rename to questions/09-网络与安全/加密与安全.md diff --git a/questions/performance-tuning.md b/questions/09-网络与安全/性能优化.md similarity index 100% rename from questions/performance-tuning.md rename to questions/09-网络与安全/性能优化.md diff --git a/questions/dubbo.md b/questions/10-中间件/Dubbo框架.md similarity index 100% rename from questions/dubbo.md rename to questions/10-中间件/Dubbo框架.md diff --git a/questions/nacos.md b/questions/10-中间件/Nacos注册中心.md similarity index 100% rename from questions/nacos.md rename to questions/10-中间件/Nacos注册中心.md diff --git a/questions/nginx.md b/questions/10-中间件/Nginx.md similarity index 100% rename from questions/nginx.md rename to questions/10-中间件/Nginx.md diff --git a/questions/spring-boot.md b/questions/10-中间件/Spring Boot核心原理.md similarity index 100% rename from questions/spring-boot.md rename to questions/10-中间件/Spring Boot核心原理.md diff --git a/questions/ci-cd.md b/questions/11-运维/CI_CD持续集成部署.md similarity index 100% rename from questions/ci-cd.md rename to questions/11-运维/CI_CD持续集成部署.md diff --git a/questions/redis-architecture.md b/questions/11-运维/Docker容器.md similarity index 100% rename from questions/redis-architecture.md rename to questions/11-运维/Docker容器.md diff --git a/questions/container-orchestration.md b/questions/11-运维/Kubernetes.md similarity index 100% rename from questions/container-orchestration.md rename to questions/11-运维/Kubernetes.md diff --git a/questions/observability.md b/questions/11-运维/可观测性.md similarity index 100% rename from questions/observability.md rename to questions/11-运维/可观测性.md diff --git a/questions/interview-skills.md b/questions/12-面试技巧/面试技巧和职业规划.md similarity index 100% rename from questions/interview-skills.md rename to questions/12-面试技巧/面试技巧和职业规划.md