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+# .env.example
+# 复制此文件为 .env 并修改配置
+
+# ===== 认证配置 =====
+AUTH_USERNAME=admin
+AUTH_PASSWORD=your_secure_password_here_change_this
+SESSION_SECRET=generate_random_64_char_string_here
+SESSION_TIMEOUT=30m
+
+# ===== 安全配置 =====
+RATE_LIMIT_REQUESTS=100
+RATE_LIMIT_WINDOW=1m
+MAX_RESPONSE_SIZE=52428800
+
+# ===== 代理配置 =====
+ALLOWED_SCHEMES=http,https
+USER_AGENT=Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36
+
+# ===== 黑名单配置 =====
+# 域名黑名单（支持通配符 *.local）
+BLOCKED_DOMAINS=localhost,127.0.0.1,0.0.0.0,*.local,internal,metadata.google.internal,169.254.169.254
+
+# CIDR 黑名单（私有网络）
+BLOCKED_CIDRS=10.0.0.0/8,172.16.0.0/12,192.168.0.0/16,169.254.0.0/16,::1/128,fc00::/7,fe80::/10,100.64.0.0/10
+
+# ===== 缓存配置 =====
+CACHE_ENABLED=true
+CACHE_MAX_SIZE=104857600
+CACHE_TTL=1h
+
+# ===== 服务器配置 =====
+PORT=8080