server {
    listen 8081;
    server_name localhost;

    gzip on;
    gzip_vary on;
    gzip_min_length 1024;
    gzip_comp_level 6;
    gzip_proxied any;
    gzip_types text/plain text/css text/javascript application/javascript application/json
               application/xml application/rss+xml image/svg+xml font/ttf font/otf;

    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header X-XSS-Protection "1; mode=block" always;
    add_header Referrer-Policy "strict-origin-when-cross-origin" always;

    error_log /var/log/nginx/error.log warn;
    access_log /var/log/nginx/access.log;

    # 独立容器时根路径重定向到文档前缀；经网关反代 /docs/ 时通常不会命中。
    location = / {
        return 302 /docs/;
    }

    # VitePress base=/docs/：磁盘上是 dist/assets/...，URL 为 /docs/assets/...
    location /docs {
        alias /usr/share/nginx/html/;
        index index.html;
        try_files $uri $uri/ $uri.html /docs/index.html;
        add_header Cache-Control "no-cache, must-revalidate" always;
    }

    location ^~ /docs/assets/ {
        alias /usr/share/nginx/html/assets/;
        add_header Cache-Control "public, max-age=31536000, immutable" always;
    }

    error_page 404 /docs/404.html;

    error_page 500 502 503 504 /50x.html;
    location = /50x.html {
        root /usr/share/nginx/html;
    }
}