:root{--xr:#0A4D9B;--xr-dark:#063A75;--navy:#023D54;--grey:#C8CCD2;--bg:#F3F6FA;--ink:#1F2933;--muted:#6B7580;--ok:#1E9E5A;--bad:#D7352B;
 --c0:#E53935;--c1:#1E88E5;--c2:#F9A825;--c3:#43A047;}
*{box-sizing:border-box}html,body{margin:0;height:100%}
body{font-family:Inter,"Segoe UI",system-ui,Arial,sans-serif;background:var(--bg);color:var(--ink);-webkit-tap-highlight-color:transparent}
.top{background:#fff;border-bottom:3px solid var(--xr);display:flex;align-items:center;gap:14px;padding:10px 16px}
.top img{height:40px}.top .t{font-weight:700;color:var(--xr);font-size:18px}.top .r{margin-left:auto;color:var(--muted);font-size:14px}
.wrap{max-width:1500px;margin:0 auto;padding:16px}
.card{background:#fff;border-radius:16px;box-shadow:0 2px 10px rgba(2,61,84,.08);padding:20px}
h1{color:var(--xr);margin:0 0 8px;font-size:28px}h2{color:var(--navy);margin:0 0 10px;font-size:22px}
.btn{display:inline-block;border:0;border-radius:12px;padding:14px 22px;font-size:18px;font-weight:700;cursor:pointer;background:var(--xr);color:#fff}
.btn:hover{background:var(--xr-dark)}.btn.sec{background:#E6EDF3;color:var(--navy)}.btn.sec:hover{background:#d5dfe8}.btn:disabled{opacity:.45;cursor:default}
input{width:100%;font-size:20px;padding:14px;border:2px solid var(--grey);border-radius:12px;margin:6px 0 14px}input:focus{outline:0;border-color:var(--xr)}
.muted{color:var(--muted)}.center{text-align:center}
.opts{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.opt{border:0;border-radius:14px;padding:18px 14px;color:#fff;font-size:19px;font-weight:700;text-align:left;cursor:pointer;display:flex;align-items:center;gap:12px;min-height:72px;line-height:1.2}
.opt .sh{font-size:26px;flex:none;width:34px;text-align:center}
.opt.o0{background:var(--c0)}.opt.o1{background:var(--c1)}.opt.o2{background:var(--c2)}.opt.o3{background:var(--c3)}
.opt.dim{opacity:.28}.opt.right{outline:5px solid #fff;box-shadow:0 0 0 9px var(--ok)}.opt.mine{box-shadow:0 0 0 5px var(--navy)}
.timer{height:12px;background:#E6EDF3;border-radius:8px;overflow:hidden}.timer i{display:block;height:100%;background:var(--xr);transition:width .25s linear}
.big{font-size:64px;font-weight:800;color:var(--xr);line-height:1}
.pill{display:inline-block;background:#E6EDF3;color:var(--navy);border-radius:999px;padding:6px 14px;font-weight:600;font-size:15px;margin:4px}
.ok{color:var(--ok)}.bad{color:var(--bad)}
table{width:100%;border-collapse:collapse}th,td{padding:10px 12px;text-align:left;border-bottom:1px solid #E6EDF3}th{color:var(--muted);font-weight:600;font-size:14px}
tr.me td{background:#EAF2FB;font-weight:700}
.qimg{width:100%;max-height:62vh;object-fit:contain;background:#000;border-radius:14px}
@media(max-width:600px){.opts{grid-template-columns:1fr}.opt{min-height:64px;font-size:17px}h1{font-size:22px}.wrap{padding:12px}}