:root{
  --bg:#f4f6f8;--card:#fff;--text:#172033;--muted:#6b7280;--line:#d9dee7;
  --primary:#2459d3;--primary2:#1e49ae;--green:#17863f;--greenbg:#eefaf2;
  --red:#c72c2c;--redbg:#fff1f1;--purple:#7a2fc2;--shadow:0 12px 32px rgba(25,35,55,.08)
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font-family:"Noto Sans TC","PingFang TC","Microsoft JhengHei",system-ui,sans-serif}
.wrap{max-width:1040px;margin:auto;padding:24px}
.card{background:var(--card);border-radius:18px;box-shadow:var(--shadow)}
.access,.setup{padding:26px}
h1{margin:0 0 8px;font-size:1.8rem}
.desc{margin:0 0 22px;color:var(--muted);line-height:1.7}
.muted{color:var(--muted)} .small{font-size:.9rem}.mt{margin-top:13px}
.section{border:1px solid var(--line);border-radius:14px;padding:17px;margin-top:14px;background:#fbfcfd}
.section h3{margin:0 0 12px;font-size:1.04rem}
.checks{display:flex;gap:16px;flex-wrap:wrap;align-items:center}
.checks label{display:flex;align-items:center;gap:7px}
input[type=checkbox],input[type=radio]{accent-color:var(--primary)}
select{width:100%;padding:10px 11px;border:1px solid var(--line);border-radius:10px;background:white;font:inherit;margin-top:5px}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:18px}
button{border:0;border-radius:11px;padding:12px 18px;font:inherit;font-weight:750;cursor:pointer}
button.primary{background:var(--primary);color:white}
button.primary:hover{background:var(--primary2)}
button.dark{background:#172033;color:white}
button.light{background:#edf1f5;color:#172033}
button:disabled{opacity:.45;cursor:not-allowed}
.stat{background:#e8efff;color:#1f3e92;border-radius:9px;padding:9px 12px;font-weight:750}
.hidden{display:none!important}

.quiz{overflow:hidden}
.qtop{padding:28px;min-height:430px}
.head{display:flex;justify-content:space-between;gap:14px;align-items:flex-start}
.badge{display:inline-block;padding:5px 10px;border-radius:999px;font-size:.85rem;font-weight:800}
.badge.single{background:#dceaff;color:#1f55bd}
.badge.multi{background:#f1e5fb;color:var(--purple)}
.qno{font-weight:800;margin-left:7px}
.meta{margin-top:7px;color:var(--muted);font-size:.91rem}
.progress{color:var(--muted);font-weight:700}
.stem{font-size:1.18rem;line-height:1.75;margin:24px 0 18px;white-space:pre-wrap}
.options{display:grid;gap:11px}
.opt{display:flex;align-items:flex-start;gap:11px;padding:13px 14px;border:2px solid #e3e8ef;border-radius:12px;background:white;cursor:pointer;transition:.12s}
.opt:hover{border-color:#b9cafa;background:#fafcff}
.opt input{margin-top:4px;transform:scale(1.13)}
.letter{font-weight:900;min-width:25px}
.opt.correct{color:var(--green);border-color:var(--green);background:var(--greenbg)}
.opt.wrong{color:var(--red);border-color:var(--red);background:var(--redbg)}
.qbottom{border-top:1px solid var(--line);background:#fafbfc;padding:17px 28px;display:flex;justify-content:space-between;align-items:center;gap:16px}
.feedback{min-height:42px}
.feedback strong.ok{color:var(--green)}
.feedback strong.bad{color:var(--red)}
.actions{display:flex;gap:10px;flex-wrap:wrap}
@media(max-width:720px){
 .wrap{padding:10px}.access,.setup{padding:18px}.grid{grid-template-columns:1fr}
 .qtop{padding:20px 15px}.qbottom{padding:14px 15px;flex-direction:column;align-items:stretch}
 .actions button{flex:1}.stem{font-size:1.07rem}
}


.titleRow{display:flex;justify-content:space-between;gap:16px;align-items:flex-start}
.dangerLight{background:#fff0f0;color:#a62828;border:1px solid #f0c5c5}
.summaryCards{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:18px 0}
.summaryCard{border:1px solid var(--line);border-radius:13px;padding:16px;background:#fbfcfd}
.summaryCard .n{font-size:1.55rem;font-weight:850;margin-top:4px}
.tableWrap{overflow:auto}
table{width:100%;border-collapse:collapse}
th,td{padding:10px 8px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}
th{font-size:.9rem;color:var(--muted)}
.okText{color:var(--green);font-weight:800}
.badText{color:var(--red);font-weight:800}
@media(max-width:720px){
 .titleRow{flex-direction:column}.summaryCards{grid-template-columns:repeat(2,minmax(0,1fr))}
}