:root{color:#f6fbff;font-synthesis:none;background:radial-gradient(circle at 50% -20%,#17617f 0,#06283f 42%,#031725 100%);font-family:Inter,Noto Sans TC,system-ui,sans-serif}*{box-sizing:border-box}body{min-width:320px;min-height:100vh;margin:0}button{font:inherit}.game-shell{width:min(100%,980px);min-height:100svh;padding:max(18px, env(safe-area-inset-top)) max(18px, env(safe-area-inset-right)) max(14px, env(safe-area-inset-bottom)) max(18px, env(safe-area-inset-left));grid-template-rows:auto minmax(430px,1fr) auto auto;gap:14px;margin:0 auto;display:grid}.topbar{justify-content:space-between;align-items:center;gap:18px;display:flex}.brand{color:#7ce8e5;letter-spacing:.13em;margin:0 0 3px;font-size:.78rem;font-weight:850}h1{letter-spacing:.02em;margin:0;font-size:clamp(1.25rem,3vw,1.8rem)}.start-button{color:#042031;cursor:pointer;background:linear-gradient(135deg,#c9ffdb,#8ce8e3);border:1px solid #ffffff70;border-radius:999px;flex:none;min-height:44px;padding:10px 18px;font-weight:850;transition:transform .14s,filter .14s;box-shadow:0 7px 20px #00091038}.start-button:not(:disabled):hover{filter:brightness(1.06);transform:translateY(-1px)}.start-button:disabled{cursor:default;opacity:.78}.game-stage{background:#9bd8e5;border:1px solid #91e5ed8c;border-radius:24px;min-height:0;position:relative;overflow:hidden;box-shadow:inset 0 1px #ffffff6b,0 20px 40px #0009113d}.game-canvas{touch-action:none;-webkit-user-select:none;user-select:none;width:100%;height:100%;min-height:430px;display:block}.hud{pointer-events:none;justify-content:space-between;align-items:flex-start;gap:10px;display:flex;position:absolute;inset:14px 14px auto}.scoreboard{grid-template-columns:repeat(5,minmax(62px,1fr));gap:7px;width:min(100%,460px);margin:0;display:grid}.scoreboard div{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#031b2cc2;border:1px solid #cffaff29;border-radius:12px;min-width:0;padding:7px 9px 8px;box-shadow:0 4px 10px #00091224}.scoreboard dt{color:#b8e2eb;text-overflow:ellipsis;white-space:nowrap;font-size:.68rem;line-height:1.1;overflow:hidden}.scoreboard dd{margin:4px 0 0;font-size:clamp(1rem,2.4vw,1.28rem);font-weight:850;line-height:1}.feedback{color:#fff5b9;text-align:right;text-shadow:0 2px 8px #061520;max-width:230px;margin:9px 0 0;font-size:.82rem;font-weight:850;line-height:1.3}.hint{color:#052634;text-align:center;pointer-events:none;background:0 0;border-radius:999px;max-width:calc(100% - 28px);min-height:0;margin:0;padding:0;font-size:clamp(.78rem,2.5vw,.95rem);font-weight:850;line-height:1.2;transition:padding .16s,background .16s,box-shadow .16s;position:absolute;top:88px;left:50%;transform:translate(-50%)}.hint:not(:empty){background:#eaffd2f0;padding:9px 15px;box-shadow:0 8px 18px #01192433}.instruction{color:#ecfbff;text-align:center;text-shadow:0 2px 7px #0a384b;pointer-events:none;margin:0;font-size:.85rem;font-weight:750;line-height:1.35;position:absolute;bottom:14px;left:14px;right:14px}.result{color:#062037;text-align:center;background:#f9fffff5;border:1px solid #fff9;border-radius:17px;width:min(82%,430px);padding:18px 22px;font-weight:850;line-height:1.55;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);box-shadow:0 15px 34px #02152561}.game-note{color:#a9cdd8;text-align:center;margin:0;font-size:.72rem;line-height:1.4}.asset-credits{color:#a9cdd8;justify-self:center;width:min(100%,560px);font-size:.72rem;line-height:1.55}.asset-credits summary{color:#c9edf2;cursor:pointer;width:fit-content;margin:0 auto}.asset-credits ul{background:#031b2c80;border:1px solid #91e5ed38;border-radius:12px;margin:9px 0 0;padding:11px 14px 11px 30px}.asset-credits a{color:#8ce8e3}@media (width<=560px){.game-shell{gap:11px;padding-inline:12px}.topbar{align-items:flex-start}.start-button{min-height:40px;padding:8px 13px;font-size:.88rem}.game-stage,.game-canvas{min-height:470px}.hud{inset:10px 10px auto}.scoreboard{gap:5px;width:100%}.scoreboard div{border-radius:10px;padding:6px 5px 7px}.scoreboard dt{font-size:.62rem}.scoreboard dd{font-size:.95rem}.feedback{display:none}.hint{top:72px}.instruction{font-size:.78rem;bottom:11px;left:12px;right:12px}}