# SSL 安全参数 (适用于 Let's Encrypt 证书)
# 此文件被 init-ssl.sh 复制到容器内 /etc/nginx/snippets/ssl-params.conf

ssl_protocols TLSv1.2 TLSv1.3;
ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384;
ssl_prefer_server_ciphers off;

# HSTS (取消注释以启用，请确认所有子域都支持 HTTPS 后再启用)
# add_header Strict-Transport-Security "max-age=63072000; includeSubDomains" always;

# OCSP Stapling
ssl_stapling on;
ssl_stapling_verify on;
resolver 8.8.8.8 8.8.4.4 valid=300s;
resolver_timeout 5s;

# SSL session 优化
ssl_session_cache shared:SSL:10m;
ssl_session_timeout 1d;
ssl_session_tickets off;

# DH 参数 (如果生成了 dhparam.pem)
# ssl_dhparam /etc/nginx/ssl/dhparam.pem;