:root{color-scheme:light dark;font-family:system-ui,"Microsoft YaHei",sans-serif;background:#f5f5f1;color:#202b29}body{margin:0;padding:10vh 24px}main{max-width:540px;margin:auto;padding:32px;border:1px solid #d6dcd8;border-radius:20px;background:#fff}h1{font-size:28px;line-height:1.4}p{line-height:1.8}a{color:#176b55;text-underline-offset:4px}@media(prefers-color-scheme:dark){:root{background:#151b19;color:#e6ece8}main{background:#1d2723;border-color:#384b41}a{color:#8edbbe}}
button,.primary{display:inline-block;border:0;border-radius:8px;padding:12px 18px;background:#176b55;color:#fff;font:inherit;text-decoration:none;cursor:pointer}button:disabled{opacity:.65;cursor:wait}button[hidden]{display:none}button+button{margin-top:12px}li{line-height:2}a:focus-visible,button:focus-visible{outline:3px solid #ce9841;outline-offset:4px}#message:not(:empty){padding:12px;border-left:3px solid #b08a46;background:#b08a4612}@media(max-width:440px){body{padding:6vh 16px}main{padding:24px}h1{font-size:24px}}