:root{--bg-0:#05070f;--bg-1:#0a1431;--glass:rgba(15,24,52,0.55);--glass-2:rgba(13,22,44,0.78);--line:rgba(155,182,255,0.2);--text:#eef4ff;--muted:#97a8d3;--ok:#49e3a8;--warn:#ffd277;--bad:#ff7b87;--brand:#7ea5ff;--brand-2:#6ef2ff;--radius-xl:28px;--radius-lg:18px;--radius-md:14px}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}body{margin:0;min-height:100%;padding:max(12px,env(safe-area-inset-top)) 12px max(12px,env(safe-area-inset-bottom));display:grid;place-items:center}.app{width:min(980px,100%);border-radius:var(--radius-xl);border:1px solid var(--line);background:linear-gradient(160deg,rgba(255,255,255,0.08),rgba(255,255,255,0.02));backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);box-shadow:0 30px 80px 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0;font-size:clamp(16px,2.3vw,21px);font-weight:700;min-height:28px}.tip.ok{color:var(--ok)}.tip.warn{color:var(--warn)}.tip.bad{color:var(--bad)}.gauge-wrap{border-radius:var(--radius-md);border:1px solid rgba(163,189,255,0.23);background:var(--glass-2);padding:8px}.gauge{width:100%;height:auto;display:block}.status{margin:4px 2px 0;color:var(--muted);font-size:12px;min-height:18px}.wave-wrap{border:1px solid rgba(161,188,255,0.2);border-radius:12px;background:rgba(8,14,29,0.55);padding:8px;position:relative;overflow:hidden}.wave-wrap::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(to right,rgba(166,194,255,0.07) 0,rgba(166,194,255,0.07) 1px,transparent 1px,transparent 24px);pointer-events:none}#waveCanvas{width:100%;height:96px;display:block;position:relative;z-index:1}.right{display:grid;gap:10px;align-content:start}.right-head{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:2px 2px 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span{min-width:36px;text-align:center}.piano-scroll{overflow-x:auto;overflow-y:hidden;-webkit-overflow-scrolling:touch;border-radius:var(--radius-md);border:1px solid rgba(163,190,255,0.2);background:rgba(8,14,29,0.55);padding:8px 8px 10px}.piano-scroll::-webkit-scrollbar{height:6px}.piano-scroll::-webkit-scrollbar-track{background:rgba(255,255,255,0.05);border-radius:3px}.piano-scroll::-webkit-scrollbar-thumb{background:rgba(126,165,255,0.35);border-radius:3px}.piano-body{display:flex;position:relative;user-select:none;-webkit-user-select:none}.piano-octave{display:flex;position:relative}.piano-key{position:relative;cursor:pointer;border-radius:0 0 6px 6px;transition:background 0.08s ease,box-shadow 0.08s ease;display:flex;align-items:flex-end;justify-content:center;padding-bottom:6px;font-size:9px;font-weight:600}.piano-key.white{width:44px;height:160px;background:linear-gradient(180deg,#f0f2f8,#d8dce8);border:1px solid 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.key-label{font-size:7.5px}.play-zone{position:absolute;left:0;right:0;bottom:0;top:33.33%;display:flex;align-items:flex-end;justify-content:center;padding-bottom:6px;z-index:1;background:linear-gradient(180deg,rgba(255,255,255,0.008),rgba(255,255,255,0.03))}.play-zone::before{content:"";position:absolute;left:10%;right:10%;top:0;height:1px;background:linear-gradient(90deg,transparent,rgba(180,206,255,0.12),transparent);pointer-events:none}.play-zone::after{content:"";position:absolute;left:12%;right:12%;bottom:10px;height:1px;background:linear-gradient(90deg,transparent,rgba(226,236,255,0.08),transparent);pointer-events:none}.piano-key.black .play-zone{background:linear-gradient(180deg,rgba(255,255,255,0.006),rgba(255,255,255,0.018))}.piano-key.black .play-zone::before{background:linear-gradient(90deg,transparent,rgba(167,188,226,0.1),transparent)}.piano-key.black 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rgba(255,169,64,0.3);background:linear-gradient(160deg,rgba(30,22,12,0.97),rgba(16,12,8,0.98));backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);box-shadow:0 24px 80px rgba(0,0,0,0.55),0 0 60px rgba(255,169,64,0.1);padding:28px 24px 24px;text-align:center;animation:sponsorIn .35s ease;position:relative;overflow:hidden}.sponsor-card::before{content:"";position:absolute;width:240px;height:240px;top:-100px;right:-80px;background:radial-gradient(circle,rgba(255,169,64,0.18),transparent 70%);pointer-events:none}.sponsor-card::after{content:"";position:absolute;width:180px;height:180px;bottom:-60px;left:-50px;background:radial-gradient(circle,rgba(255,210,119,0.12),transparent 70%);pointer-events:none}@keyframes sponsorIn{from{opacity:0;transform:translateY(24px) scale(.94)}to{opacity:1;transform:translateY(0) scale(1)}}.sponsor-close-btn{position:absolute;top:12px;right:12px;width:28px;height:28px;border-radius:8px;border:1px solid rgba(255,169,64,0.2);background:rgba(30,22,12,0.5);color:var(--muted);font-size:14px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.15s;z-index:1}.sponsor-close-btn:hover{color:#ffa940}.sponsor-music-notes{position:absolute;inset:0;pointer-events:none;overflow:hidden}.music-note{position:absolute;font-size:22px;opacity:.15;color:#ffa940;animation:noteFloat 4s ease-in-out infinite}.music-note.n1{top:18%;left:8%;animation-delay:0s;font-size:18px}.music-note.n2{top:12%;right:15%;animation-delay:.8s;font-size:26px}.music-note.n3{bottom:22%;left:12%;animation-delay:1.6s;font-size:16px}.music-note.n4{bottom:15%;right:10%;animation-delay:2.4s;font-size:20px}.music-note.n5{top:40%;left:4%;animation-delay:3.2s;font-size:14px}@keyframes noteFloat{0%,100%{transform:translateY(0) rotate(0deg);opacity:.12}25%{transform:translateY(-8px) rotate(8deg);opacity:.25}50%{transform:translateY(-4px) rotate(-4deg);opacity:.18}75%{transform:translateY(-10px) 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