server {
    listen       80;
    listen  [::]:80;
    server_name  localhost;

    # ABM 项目根目录
    root /usr/share/nginx/html;
    index index.html index.htm;

    # ABM 主路径 - 重写 /ABM 到根目录
    location /ABM/ {
        rewrite ^/ABM/(.*)$ /$1 break;
        try_files $uri $uri/ /index.html;
        
        # 静态资源缓存
        expires 1d;
        add_header Cache-Control "public, max-age=86400";
    }
    
    # 处理 /ABM 不带斜杠的情况
    location = /ABM {
        return 301 /ABM/;
    }

    # 健康检查端点
    location /health {
        access_log off;
        return 200 "healthy\n";
        add_header Content-Type text/plain;
    }

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