:root{color-scheme:light dark;--bg:#fff6f6;--card:#fff;--text:#251c20;--muted:#73636a;--line:#eed8de;--accent:#ce3045}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.65 -apple-system,BlinkMacSystemFont,"PingFang SC",sans-serif}main{max-width:540px;margin:5vh auto;padding:28px;background:var(--card);border:1px solid var(--line);border-radius:24px}.brand,a{color:var(--accent)}h1{font-size:26px}label{display:block;margin:18px 0 6px}input,select,button{font:inherit;padding:12px;border:1px solid var(--line);border-radius:12px}input,select{width:100%;background:var(--bg);color:var(--text)}button{background:var(--accent);color:white;cursor:pointer}button:disabled{opacity:.5;cursor:wait}.actions{display:flex;gap:12px;margin:20px 0}.hint{color:var(--muted);font-size:14px}a{overflow-wrap:anywhere}[hidden]{display:none!important}@media(max-width:580px){main{margin:16px;padding:22px}}@media(prefers-color-scheme:dark){:root{--bg:#181318;--card:#251e24;--text:#f7eaf0;--muted:#c4b1bc;--line:#4e3944;--accent:#ff8096}}