server {
    listen 80;
    server_name localhost;
    
    location / {
        root   /usr/share/nginx/html;
        index  index.html;
        try_files $uri $uri/ /index.html;  # 关键：支持前端路由
    }

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