*{box-sizing:border-box}:root{color-scheme:dark;--panel:rgba(17,29,56,.88);--panel2:rgba(27,43,82,.94);--line:rgba(226,232,240,.2);--text:#f8fafc;--muted:#b7c4d8;--blue:#38bdf8;--violet:#a78bfa;--gold:#facc15}html,body{margin:0;min-height:100%}body{background:radial-gradient(circle at 18% 0%,rgba(56,189,248,.2),transparent 28%),radial-gradient(circle at 88% 10%,rgba(167,139,250,.18),transparent 28%),linear-gradient(145deg,#0b1325,#17264a 58%,#0b1325);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.wrap{width:min(820px,calc(100vw - 24px));margin:0 auto;padding:12px 0 18px}.top{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;padding:14px 16px;border:1px solid var(--line);border-radius:18px 18px 10px 10px;background:linear-gradient(135deg,var(--panel),rgba(10,19,38,.88));backdrop-filter:blur(14px)}.top h1{margin:0;font-size:clamp(1.4rem,3vw,2.25rem)}.top p{margin:6px 0 0;color:var(--muted);font-size:.92rem;font-weight:750}.hud{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin:10px 0}.chip{display:flex;justify-content:space-between;align-items:center;gap:8px;border:1px solid var(--line);border-radius:12px;padding:9px 11px;background:linear-gradient(180deg,var(--panel),var(--panel2))}.chip span{color:var(--muted);font-weight:800}.stage-shell{overflow:hidden;border:1px solid var(--line);border-radius:16px;background:#0c1732;box-shadow:0 24px 80px rgba(0,0,0,.32)}#game-stage{width:100%;aspect-ratio:4/3;min-height:360px}#game-stage canvas{display:block;width:100%;height:100%}.tip{margin:10px 0 0;color:var(--muted);font-size:.9rem;text-align:center;font-weight:750}.reward-row{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;margin-top:10px}.reward-row .tip{margin:0;text-align:left;flex:1 1 320px}button{border:0;border-radius:12px;padding:11px 15px;cursor:pointer;font:inherit;font-weight:850;transition:transform 140ms ease,filter 140ms ease,opacity 140ms ease}button:active{transform:translateY(1px) scale(.99)}button:disabled{cursor:not-allowed;opacity:.48}#restartBtn{background:linear-gradient(135deg,#38bdf8,#2563eb);color:#fff}#rewardBtn{background:linear-gradient(135deg,#a78bfa,#2563eb);color:#fff}@media(max-width:640px){.top{flex-direction:column;align-items:stretch}.hud{grid-template-columns:1fr}.reward-row button,#restartBtn{width:100%}.wrap{width:min(100vw - 16px,640px)}}