server {
  listen 80;
  server_name localhost;

  root /usr/share/nginx/html;
  index index.html;

  location / {
    try_files $uri $uri/ /index.html;
  }

  # 可选：静态资源缓存
  location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg)$ {
    expires 7d;
    add_header Cache-Control "public, no-transform";
  }
}