:root{--ink:#27342f;--muted:#73807a;--line:#dfe6df;--paper:#fbfcf9;--green:#357b5b;--mint:#eaf3ed;--amber:#f0b45b;--red:#c65a4a}*{box-sizing:border-box}body{margin:0;background:#f1f4ef;color:var(--ink);font:14px/1.5 Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft Yahei",sans-serif}.page-shell{max-width:1380px;margin:0 auto;padding:30px 34px 44px}.topbar{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:22px}.eyebrow,.quiz-kicker{margin:0 0 6px;color:var(--green);font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase}.topbar h1{margin:0;font:600 clamp(28px,3vw,42px)/1.1 Georgia,"Songti SC",serif;letter-spacing:-.04em}.subtitle{margin:10px 0 0;color:var(--muted);font-size:15px}.top-actions{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:12px}.live-dot{width:8px;height:8px;border-radius:50%;background:#55a875;box-shadow:0 0 0 4px #dcefe1}.ghost-btn,.reset-btn{border:1px solid var(--line);background:white;color:var(--ink);border-radius:999px;padding:8px 14px;cursor:pointer}.layout{display:grid;grid-template-columns:minmax(0,2fr) minmax(320px,1fr);gap:18px;align-items:stretch}.scene-card,.quiz-card{background:var(--paper);border:1px solid var(--line);border-radius:18px;box-shadow:0 12px 34px rgba(40,65,49,.06)}.scene-card{padding:14px}.scene-head{display:flex;justify-content:space-between;padding:3px 4px 12px;color:var(--muted);font-size:12px}.canvas-wrap{position:relative;overflow:hidden;border-radius:13px;background:#cfe0db}.world{display:block}.canvas-wrap canvas{display:block;width:100%;height:min(58vh,540px);min-height:360px}.canvas-tip{position:absolute;left:17px;top:15px;padding:6px 10px;border-radius:8px;background:rgba(255,255,255,.76);color:#587066;font-size:11px;backdrop-filter:blur(6px)}.stats-row{display:grid;grid-template-columns:1fr 1fr 1fr auto;gap:10px;padding:15px 4px 2px;align-items:center}.stats-row>div{display:flex;flex-direction:column;gap:2px}.stats-row span{color:var(--muted);font-size:11px}.stats-row strong{font-size:20px;font-weight:600}.reset-btn{justify-self:end;color:var(--green);font-size:12px}.quiz-card{padding:25px 25px 21px;display:flex;flex-direction:column;min-height:570px}.quiz-kicker{display:flex;justify-content:space-between}.quiz-card h2{margin:22px 0 10px;font:600 25px/1.25 Georgia,"Songti SC",serif;letter-spacing:-.02em}.question-text{min-height:70px;margin:0 0 18px;color:#50615a;font-size:15px}.choices{display:grid;gap:10px}.choice{width:100%;border:1px solid var(--line);background:white;border-radius:11px;text-align:left;padding:13px 14px;color:var(--ink);cursor:pointer;transition:.18s}.choice:hover:not(:disabled){border-color:#8ab79a;transform:translateY(-1px)}.choice:disabled{cursor:default}.choice.correct{border-color:#64a77c;background:#eaf5ed}.choice.wrong{border-color:#dc9a8f;background:#fff1ee}.feedback{margin-top:16px;padding:12px 13px;border-radius:10px;background:var(--mint);color:#476657;font-size:13px}.feedback.wrong{background:#fff1ed;color:#8b5149}.next-btn{border:0;border-radius:10px;background:var(--green);color:#fff;padding:12px;margin-top:16px;font-size:14px;cursor:pointer}.next-btn span{float:right}.quiz-note{margin-top:auto;padding-top:20px;color:#8b9690;font-size:11px;line-height:1.7;border-top:1px solid #edf0ec}.paused .canvas-tip{background:#fff1d8;color:#976b2a}@media(max-width:900px){.page-shell{padding:22px 16px}.topbar{align-items:flex-start;gap:15px;flex-direction:column}.layout{grid-template-columns:1fr}.quiz-card{min-height:0}.canvas-wrap canvas{height:430px}}@media(max-width:560px){.stats-row{grid-template-columns:1fr 1fr}.reset-btn{justify-self:start}.top-actions{align-self:stretch;justify-content:flex-end}}
.control-pad{display:flex;align-items:center;gap:7px;padding:12px 4px 0}.control-pad button{width:32px;height:28px;border:1px solid var(--line);background:#fff;border-radius:7px;color:var(--green);cursor:pointer;font-weight:700}.control-pad span{margin-left:7px;color:var(--muted);font-size:11px}