插画风格 500 错误页面

生成一张 1024x1280 像素、4:5 竖版网页 500 错误状态页。白色背景，中央抽象断线插画和标题「服务暂时出错」，说明「问题出在我们这边，请稍后重试。」按钮「重新加载」「返回首页」。底部版权写「© 2026 500」。布局干净、留白充足、蓝灰点缀。所有可见文字为简体中文，不出现英文错误文案、英文按钮、真实公司名、水印或乱码。

A pixel-perfect browser-based 500 error page rendered in a friendly flat-illustration web design style. The page is centered in a 1280px viewport. A large centered illustration shows a cartoon server rack with steam venting from the top, circuit board patterns glowing amber, and a tiny sad-face icon on the server front panel. Above the illustration, a bold large numeral "500" in 96px dark navy, with a thin amber underline rule. Below the illustration: heading "Something went wrong on our end" in 28px dark semibold, body text "Our engineers have been notified and are working on it. Please try again in a few minutes." in 16px gray. Two buttons centered: "Reload Page" in filled dark navy, and "Go to Homepage" in outlined dark navy. Very bottom: tiny copyright line "© 2026 Helix Corp". The background is a very light warm cream. Illustration color palette: dark navy, amber, muted coral, light cream — no red, no alarming cues.