# Nginx / 宝塔：分层缓存片段（并入 server {} 后 reload）
# Vite 构建产物在 /assets/ 下且文件名含 content hash → 长缓存
# 注意：若 public 静态图也挂在 /assets/，与构建产物同前缀时用扩展名区分

location = /index.html {
    add_header Cache-Control "public, max-age=0, must-revalidate";
}

location ~* \.html$ {
    add_header Cache-Control "public, max-age=0, must-revalidate";
}

# Vite 打出的带 hash 的 JS/CSS（部署后路径通常为 /assets/index-xxxxx.js）
location ~* ^/assets/.*\.(?:js|css)$ {
    add_header Cache-Control "public, max-age=31536000, immutable";
    try_files $uri =404;
}

# 同域兜底图片（生产主图应走 OSS；若仍有本地图则 7 天）
location ~* ^/assets/.*\.(?:png|jpe?g|gif|webp|svg|ico)$ {
    add_header Cache-Control "public, max-age=604800";
    try_files $uri =404;
}

location = /robots.txt {
    add_header Cache-Control "public, max-age=0, must-revalidate";
}

location = /sitemap.xml {
    add_header Cache-Control "public, max-age=0, must-revalidate";
    default_type application/xml;
}

# SPA 路由回退（按实际根目录调整）
# location / {
#     try_files $uri $uri/ /index.html;
# }