:root{--bg:#fff;--fg:#1d1d1f;--mut:#6e6e73;--card:#f4f5f7;--line:#e2e4e8;--acc:#d9480f;--ok:#2b8a3e;--ng:#c92a2a}
@media(prefers-color-scheme:dark){:root{--bg:#161618;--fg:#f2f2f2;--mut:#a0a0a5;--card:#242428;--line:#34343a}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.55 system-ui,-apple-system,"Noto Sans TC",sans-serif}
main{max-width:560px;margin:0 auto;padding:16px}
h1{font-size:22px;margin:8px 0 4px}h2{font-size:18px;margin:20px 0 8px}p.s{color:var(--mut);margin:0 0 12px;font-size:15px}
button,select,input,textarea{font:inherit;color:var(--fg)}
button{border:0;border-radius:12px;padding:14px;background:var(--card);text-align:left;width:100%;min-height:48px;cursor:pointer}
button.on{background:var(--acc);color:#fff}button:disabled{opacity:.45;cursor:default}
select,input,textarea{width:100%;padding:12px;border:1px solid var(--line);border-radius:10px;background:var(--bg)}
label{display:block;font-size:14px;color:var(--mut);margin:10px 0 4px}
.list{display:grid;gap:8px}.n{float:right;color:var(--mut)}button.on .n{color:#fff}
.q{white-space:pre-wrap;margin:12px 0 16px;font-size:19px}
.opt{margin-bottom:8px}.opt.ok{background:var(--ok);color:#fff}.opt.ng{background:var(--ng);color:#fff}
.exp{background:var(--card);border-radius:12px;padding:12px;margin:12px 0;white-space:pre-wrap;font-size:16px}
.bar{color:var(--mut);font-size:14px;display:flex;justify-content:space-between}
.go{background:var(--acc);color:#fff;text-align:center;margin-top:8px}
.tabs{display:flex;gap:8px;margin:12px 0}.tabs button{text-align:center}
.warn{background:#fff4e6;color:#7a3e00;border-radius:10px;padding:10px;font-size:14px;margin:8px 0}
@media(prefers-color-scheme:dark){.warn{background:#3a2a14;color:#ffd8a8}}
table{border-collapse:collapse;width:100%;font-size:14px}td,th{border-bottom:1px solid var(--line);padding:6px;text-align:left;vertical-align:top}
.scroll{overflow-x:auto}.row{display:flex;gap:8px;align-items:center}.row>*{flex:1}