:root{color-scheme:dark;--bg: #0a0e12;--panel: #0c1218;--line: #2a3138;--line-dim: #1e252c;--text: #c7d4de;--text-dim: #6e7e8a;--light: #7fff9e;--font-mono: "Space Mono", Consolas, monospace;--font-ui: "Noto Sans TC", "Microsoft JhengHei", sans-serif}*{box-sizing:border-box}html,body{margin:0;height:100%}body{background:var(--bg);color:var(--text);font-family:var(--font-ui);display:flex;flex-direction:column;align-items:center;overflow:hidden;padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);-webkit-tap-highlight-color:transparent;user-select:none;-webkit-touch-callout:none}#topbar{width:100%;max-width:600px;min-height:52px;display:flex;align-items:center;justify-content:space-between;padding:8px 14px;border-bottom:1px solid var(--line-dim)}.brand{font-family:var(--font-mono);font-weight:700;font-size:17px;letter-spacing:.22em;color:var(--text)}.brand .zh{font-family:var(--font-ui);font-weight:500;letter-spacing:.3em;margin-left:6px;color:var(--text-dim);font-size:14px}.brand .day{font-family:var(--font-mono);font-weight:400;font-size:12px;color:var(--light);margin-left:8px;letter-spacing:.1em;text-shadow:0 0 8px rgba(127,255,158,.45)}.hud-right{display:flex;align-items:center;gap:12px}#stepHud{font-size:12px;color:var(--text-dim);letter-spacing:.08em}#stepHud b{font-family:var(--font-mono);font-weight:700;font-size:15px;color:var(--text);margin:0 2px}#stepHud .sep{margin:0 6px;color:var(--line)}button{appearance:none;background:transparent;border:1px solid var(--line);border-radius:2px;color:var(--text);font-family:var(--font-ui);font-size:13px;letter-spacing:.1em;min-height:44px;padding:8px 18px;cursor:pointer;transition:border-color .15s,box-shadow .15s,color .15s}button:hover{border-color:#7fff9e8c;box-shadow:0 0 10px #7fff9e1f;color:#eafff2}button:active{transform:translateY(1px)}#muteBtn,#musicBtn,#statsBtn{width:44px;min-width:44px;padding:0;display:grid;place-items:center}#muteBtn svg,#musicBtn svg,#statsBtn svg{width:18px;height:18px;stroke:var(--text);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}#muteBtn .waves,#musicBtn .note{stroke:var(--light)}#muteBtn .slash,#musicBtn .slash{display:none;stroke:var(--text-dim)}#muteBtn.muted .waves{display:none}#muteBtn.muted .slash,#musicBtn.off .slash{display:block}#muteBtn.muted svg,#musicBtn.off svg,#musicBtn.off .note{stroke:var(--text-dim)}#streakHud{display:flex;align-items:center;gap:3px}#streakHud[hidden]{display:none}#streakHud svg{width:15px;height:15px;fill:var(--light);stroke:none;filter:drop-shadow(0 0 4px rgba(127,255,158,.55))}#streakHud b{font-family:var(--font-mono);font-size:14px;color:var(--light);text-shadow:0 0 8px rgba(127,255,158,.4)}#stage{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;width:100%}#board{touch-action:manipulation;cursor:pointer;display:block}#hint{font-size:12px;letter-spacing:.14em;color:var(--text-dim);transition:opacity 1.2s;min-height:18px}#hint.fade{opacity:0}#subbar{display:flex;align-items:center;gap:16px;font-size:12px;color:var(--text-dim);letter-spacing:.1em;min-height:30px}#countdown{font-family:var(--font-mono)}button.linkish{border:none;min-height:30px;padding:4px 6px;font-size:12px;color:var(--text-dim);text-decoration:underline;text-underline-offset:3px;letter-spacing:.1em}button.linkish:hover{color:var(--light);box-shadow:none}#winPanel{position:fixed;left:50%;bottom:max(20px,env(safe-area-inset-bottom));transform:translate(-50%,24px);width:min(92vw,380px);background:var(--panel);border:1px solid rgba(127,255,158,.3);border-radius:2px;box-shadow:0 0 28px #7fff9e1a,0 12px 40px #0009;padding:18px 20px 16px;opacity:0;pointer-events:none;transition:opacity .22s,transform .22s cubic-bezier(.2,.9,.3,1.2);text-align:center}#winPanel.show{opacity:1;transform:translate(-50%);pointer-events:auto}#winPanel .caption{font-family:var(--font-mono);font-size:10px;letter-spacing:.42em;color:var(--light);text-shadow:0 0 10px rgba(127,255,158,.5)}#winPanel h2{margin:6px 0 10px;font-size:22px;font-weight:700;letter-spacing:.32em;text-indent:.32em}#winStars{display:flex;justify-content:center;gap:8px;margin-bottom:10px}#winStars svg{width:26px;height:26px;fill:none;stroke:var(--line);stroke-width:1.4;transition:all .2s}#winStars svg.earned{fill:var(--light);stroke:var(--light);filter:drop-shadow(0 0 7px rgba(127,255,158,.65))}#winBadge{font-size:12px;color:var(--light);letter-spacing:.3em;text-indent:.3em;text-shadow:0 0 10px rgba(127,255,158,.5);margin-bottom:8px}#winBadge[hidden]{display:none}#winStats{font-family:var(--font-mono);font-size:14px;color:var(--text);border-top:1px solid var(--line-dim);padding:10px 0 6px;letter-spacing:.12em}#cardImg{display:block;width:min(58vw,210px);margin:10px auto 2px;border:1px solid var(--line);border-radius:2px;box-shadow:0 4px 18px #00000080}#cardImg[hidden]{display:none}button:disabled{opacity:.35;cursor:default;pointer-events:none}#cardPreview{margin:6px auto 8px;padding:10px 14px;background:#080c10;border:1px solid var(--line-dim);border-radius:2px;font-family:var(--font-mono);font-size:13px;line-height:1.55;color:var(--text);text-align:left;display:inline-block;user-select:text;-webkit-touch-callout:default;white-space:pre}button.primary{border-color:#7fff9e8c;color:#eafff2;box-shadow:0 0 12px #7fff9e24}button.primary:hover{border-color:var(--light);box-shadow:0 0 18px #7fff9e47}#winStreakLine{border-top:1px solid var(--line-dim)}#winStreakLine{font-size:12px;color:var(--text-dim);padding:8px 0 2px;letter-spacing:.12em}#winCountdown{font-family:var(--font-mono);font-size:12px;color:var(--light);text-shadow:0 0 8px rgba(127,255,158,.35);padding-bottom:12px;letter-spacing:.14em}.win-actions{display:flex;gap:10px;justify-content:center}#sponsorSlot{width:min(320px,100%);height:100px;margin:12px auto 0;border:1px dashed var(--line-dim);border-radius:2px;display:grid;place-items:center}#sponsorSlot[hidden]{display:none}#installBtn{margin-top:10px}#installBtn[hidden]{display:none}#statsModal{position:fixed;inset:0;z-index:30;display:grid;place-items:center}#statsModal[hidden]{display:none}.modal-backdrop{position:absolute;inset:0;background:#040609b8}.modal-card{position:relative;width:min(92vw,360px);background:var(--panel);border:1px solid var(--line);border-radius:2px;box-shadow:0 14px 44px #000000a6;padding:18px 20px 16px;text-align:center}.modal-card .caption{font-family:var(--font-mono);font-size:10px;letter-spacing:.42em;color:var(--text-dim)}.modal-card h3{margin:6px 0 12px;font-size:18px;letter-spacing:.32em;text-indent:.32em}.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line-dim);border-bottom:1px solid var(--line-dim);padding:10px 0;margin-bottom:12px}.stat-grid div{display:flex;flex-direction:column;gap:2px}.stat-grid b{font-family:var(--font-mono);font-size:20px;color:var(--text)}.stat-grid span{font-size:10px;color:var(--text-dim);letter-spacing:.14em}.histo-title{font-size:11px;color:var(--text-dim);letter-spacing:.14em;margin-bottom:6px;text-align:left}#histo{display:flex;flex-direction:column;gap:4px;margin-bottom:12px}.histo-row{display:grid;grid-template-columns:44px 1fr 26px;align-items:center;gap:8px;font-family:var(--font-mono);font-size:11px;color:var(--text-dim)}.histo-bar{height:12px;background:#7fff9e3d;border-right:2px solid var(--light);min-width:2px;transition:width .3s}.histo-row b{color:var(--text);text-align:right}#freezeLine{font-size:11px;color:var(--text-dim);letter-spacing:.08em;margin-bottom:12px}#toast{position:fixed;top:calc(60px + env(safe-area-inset-top));left:50%;transform:translate(-50%) translateY(-8px);z-index:40;background:var(--panel);border:1px solid rgba(127,255,158,.35);border-radius:2px;color:var(--text);font-size:13px;letter-spacing:.08em;padding:10px 18px;opacity:0;pointer-events:none;transition:opacity .25s,transform .25s;box-shadow:0 0 18px #7fff9e1a;max-width:88vw;text-align:center}#toast.show{opacity:1;transform:translate(-50%) translateY(0)}@media(max-width:470px){.brand .zh,#stepHud .lbl{display:none}.hud-right{gap:7px}#topbar{padding:8px 10px}}#debug{width:100%;max-width:600px;border-top:1px solid var(--line-dim);padding:8px 12px calc(8px + env(safe-area-inset-bottom));font-size:12px;color:var(--text-dim);display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:center}#debug input[type=date]{background:#11181f;color:var(--text);border:1px solid var(--line);border-radius:2px;font-family:var(--font-mono);padding:6px 8px}#debug button{min-height:44px;padding:4px 12px;font-size:12px}#debug label{display:inline-flex;align-items:center;gap:4px}#solution{white-space:pre-line;width:100%;text-align:center;color:#9a9468;font-family:var(--font-mono);font-size:11px}#fps{font-family:var(--font-mono);color:var(--text-dim)}