请教下 nginx 配置域名反代到本地端口这里面应该怎么加。

域名 1.31.tw 怎么添加反代可以正常访问 127.0.0.1:5000 端口? 我自己加的反代在域名开启 ssl 下 css 不正常，错位。弄一天了没弄明白，求大佬。谢谢 下面是配置文件：

server {

listen 80;

listen 443 ssl http2;

ssl_certificate /usr/local/nginx/conf/ssl/1.31.tw.crt;

ssl_certificate_key /usr/local/nginx/conf/ssl/1.31.tw.key;

ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3;

ssl_ciphers TLS13-AES-256-GCM-SHA384:TLS13-CHACHA20-POLY1305-SHA256:TLS13-AES-128-GCM-SHA256:TLS13-AES-128-CCM-8-SHA256:TLS13-AES-128-CCM-SHA256:EECDH+CHACHA20:EECDH+AES128:RSA+AES128:EECDH+AES256:RSA+AES256:EECDH+3DES:RSA+3DES:!MD5;

ssl_prefer_server_ciphers on;

ssl_session_timeout 10m;

ssl_session_cache builtin:1000 shared:SSL:10m;

ssl_buffer_size 1400;

add_header Strict-Transport-Security max-age=15768000;

ssl_stapling on;

ssl_stapling_verify on;

server_name 1.31.tw;

access_log /data/wwwlogs/1.31.tw_nginx.log combined;

index index.html index.htm index.php;

root /data/wwwroot/1.31.tw;

if ($ssl_protocol = "") { return 301 https://$host$request_uri; }

include /usr/local/nginx/conf/rewrite/none.conf;

#error_page 404 /404.html;

#error_page 502 /502.html;

location ~ [^/].php(/|$) {

#fastcgi_pass remote_php_ip:9000; fastcgi_pass unix:/dev/shm/php-cgi.sock; fastcgi_index index.php; include fastcgi.conf; 

}

location ~ .*.(gif|jpg|jpeg|png|bmp|swf|flv|mp4|ico)$ {

expires 30d; access_log off; 

}

location ~ .*.(js|css)?$ {

expires 7d; access_log off; 

}

location ~ /.ht {

deny all; 

}

}