:root{color-scheme:dark;--bg:#080a0c;--text:#e2e8ed;--muted:#a5b0bb;--gold:#e0c16c;--border:#38434e}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:var(--bg);color:var(--text);font:16px/1.6 'Microsoft YaHei',sans-serif;display:flex;flex-direction:column}header{height:74px;padding:0 32px;display:flex;align-items:center;gap:20px;border-bottom:1px solid #293038;color:var(--muted)}header strong{font-size:26px;color:#fff}header strong span{color:var(--gold)}main{width:min(100% - 48px,430px);margin:auto;padding:64px 0}h1{font-size:28px;line-height:1.4;margin:0 0 12px}p{margin:0}.intro,.help{color:var(--muted)}form{margin-top:32px}label{display:block;margin-bottom:8px}input{width:100%;height:50px;padding:10px 14px;border:1px solid var(--border);border-radius:5px;background:#11171d;color:var(--text);font:inherit;caret-color:var(--gold)}input:focus-visible,button:focus-visible{outline:2px solid var(--gold);outline-offset:3px}#message{min-height:54px;padding-top:12px;color:#ffb4ad;font-size:14px}button{width:100%;min-height:48px;border:1px solid #b99436;border-radius:5px;background:var(--gold);color:#14120a;font:600 16px 'Microsoft YaHei',sans-serif;cursor:pointer}button:hover{background:#f1d181}button:disabled{opacity:.55;cursor:not-allowed}.help{margin-top:24px;font-size:14px}footer{padding:22px;text-align:center;color:var(--muted);font-size:13px}::selection{background:#6c5622;color:#fff}