:root{--bg:#f6f1e7;--paper:#fffdf8;--ink:#2b2622;--soft:#6b625a;--line:#e3d9c8;--star:#f2b400;
  --math:#2f6fb3;--math-bg:#e6f0fa;--eng:#2f8a57;--eng-bg:#e5f4ea;--chn:#8a4b2f;--chn-bg:#f6e9df;--bad:#b3392f;--ok:#2f8a57}
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{margin:0;height:100%;background:var(--bg);color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Heiti SC","Microsoft YaHei","Noto Sans SC","WenQuanYi Zen Hei",sans-serif;
  font-size:20px;line-height:1.5;-webkit-font-smoothing:antialiased}
.wrap{max-width:1180px;height:100%;margin:0 auto;padding:14px 24px 12px;display:flex;flex-direction:column;gap:10px}
header{display:flex;align-items:center;justify-content:space-between;gap:16px}
h1{font-size:30px;margin:0;letter-spacing:1px}
.sub{color:var(--soft);font-size:17px;margin:0}
.dot{display:inline-block;width:12px;height:12px;border-radius:50%;background:#bbb;margin-right:8px;vertical-align:-1px}
.dot.ok{background:var(--ok)}.dot.wait{background:var(--star)}.dot.bad{background:var(--bad)}
.btn{font:inherit;font-size:20px;padding:10px 22px;border-radius:16px;border:2px solid var(--ink);background:var(--paper);color:var(--ink);cursor:pointer;text-decoration:none;display:inline-block}
.btn.main{background:var(--ink);color:#fff}
.btn:disabled{opacity:.5;cursor:default}
.card{background:var(--paper);border:2px solid var(--line);border-radius:18px;padding:12px 18px}
.note{font-size:16px;color:var(--soft)}
.warn{background:#fff1cf;border:2px solid var(--star);border-radius:14px;padding:8px 16px;font-size:17px}