@layer theme{:root,:host{--font-sans:ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--spacing:.25rem;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color 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components;@layer utilities{.visible{visibility:visible}.static{position:static}.start{inset-inline-start:var(--spacing)}.rounded{border-radius:.25rem}}:root{--ink:#243049;--cream:#fff7e8;--paper:#fffdf7;--coral:#ff776d;--coral-dark:#c94c4a;--indigo:#5e5cd8;--yellow:#f6be3d;--mint:#9de2ce;--line:#293550}*{box-sizing:border-box}html{background:var(--cream);min-height:100%}body{min-height:100vh;color:var(--ink);background:radial-gradient(circle at 9% 8%, #ffc75638, transparent 24%), radial-gradient(circle at 94% 84%, #60bce038, transparent 26%), var(--cream);margin:0;font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,PingFang SC,Microsoft YaHei,sans-serif}button,input{font:inherit}button{-webkit-tap-highlight-color:transparent}.game-shell{width:min(1180px,100% - 36px);margin:0 auto;padding:26px 0 28px}.game-header{align-items:center;gap:14px;margin-bottom:20px;display:flex}.header-rewards{align-items:center;gap:9px;margin-left:auto;display:flex}.brand-mark{border:3px solid var(--line);color:#fff;background:var(--indigo);border-radius:17px;place-items:center;width:50px;height:50px;font-size:27px;font-weight:900;display:grid;transform:rotate(-4deg);box-shadow:0 6px #4442a9}.eyebrow{color:var(--coral-dark);letter-spacing:.14em;margin:0 0 2px;font-size:11px;font-weight:900}h1{letter-spacing:-.045em;margin:0;font-size:clamp(22px,3vw,30px)}.star-pill{background:#fffaf0;border:2px solid #e7bd56;border-radius:999px;align-items:center;gap:8px;padding:9px 15px;font-size:18px;font-weight:900;display:flex;box-shadow:0 4px #a67a1a21}.star-pill span{color:var(--yellow);text-shadow:0 2px #c78f14}.daily-pill{color:#504eb5;background:#ffffffb8;border:2px solid #5e5cd83d;border-radius:999px;padding:9px 13px;font-size:12px;font-weight:900}.hero-card,.play-card,.result-card{border:3px solid var(--line);border-radius:36px;position:relative;overflow:hidden;box-shadow:0 14px #2330491f}.hero-card{background:linear-gradient(145deg,#eefaff 0%,#dcefff 54%,#cce5f4 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#29355038;border-radius:14px;grid-template-columns:31px 1fr;align-items:center;gap:7px;min-width:0;min-height:77px;padding:9px 10px;transition:transform .15s,opacity .15s;display:grid;position:relative}.level-picker label:hover:not(.locked){transform:translateY(-2px)}.level-picker label.selected{border-color:var(--indigo);background:#fff;box-shadow:0 3px #4a48ad29}.level-picker label.locked{cursor:not-allowed;opacity:.48;filter:grayscale(.35)}.level-picker input{opacity:0;pointer-events:none;position:absolute}.level-icon{background:#ffffffb8;border-radius:10px;place-items:center;width:31px;height:31px;font-size:18px;display:grid}.level-copy{min-width:0;font-style:normal;display:grid}.level-copy small{color:#727d91;font-size:9px;font-weight:850}.level-copy strong{text-overflow:ellipsis;white-space:nowrap;font-size:12px;overflow:hidden}.level-copy 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#2838521f}.staff-preview:not(.is-preview){width:min(100%,500px);min-width:0;height:290px;margin:0 auto;transform:none}.clef{font-family:Times New Roman,Noto Music,serif;font-size:96px;line-height:1;position:absolute;top:64px;left:25px}.preview-note{border:3px solid var(--line);background:var(--coral);border-radius:50%;width:38px;height:27px;position:absolute;left:66%;transform:translateY(-50%)rotate(-12deg)}.preview-note:before{content:"";background:var(--line);border-radius:3px;width:4px;height:84px;position:absolute;bottom:10px;right:-3px}.ledger-line{background:var(--line);width:78px;height:3px;position:absolute;left:calc(66% - 20px);transform:translateY(-50%)}.staff-preview.is-correct{background-color:#e6fff2;transform:scale(1.018)}.staff-preview.is-correct .preview-note{background:#56c89b}.correct-burst{color:var(--yellow);text-shadow:0 4px #c89117;font-size:58px;animation:.6s cubic-bezier(.2,.9,.3,1.3) both star-burst;position:absolute;top:58px;left:calc(66% + 42px)}.play-card{background:linear-gradient(145deg,#e8f7ff,#d5ebf7);min-height:630px;padding:28px}.play-topbar{justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:22px;display:flex}.play-topbar>div{flex-wrap:wrap;align-items:center;gap:9px;display:flex}.play-topbar p{flex-basis:100%;margin:0;font-size:16px;font-weight:780}.level-chip{background:#ffffff94;border:2px solid #29355030;border-radius:999px;padding:8px 11px;font-size:11px;font-weight:850}.combo-pill{color:#954e18;background:#fff3c9;border:2px solid #eaa534;border-radius:999px;padding:8px 11px;font-size:11px;font-weight:900;animation:.32s both combo-pop;box-shadow:0 3px #9b5c1721}.speed-pill{color:#4a5770;background:#ffffffa6;border:2px solid #2935502e;border-radius:999px;padding:8px 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minmax(300px,.85fr);gap:25px;display:grid}.question-panel,.journey-panel{border:3px solid var(--line);background:#ffffffd1;border-radius:28px;min-height:490px;padding:27px}.question-label{color:#5d687d;text-align:center;letter-spacing:.04em;margin:0 0 16px;font-size:13px;font-weight:820}.heard-row{justify-content:center;align-items:center;gap:9px;margin-top:20px;display:flex}.heard-row span{color:#727d91;font-size:12px}.heard-row strong{text-align:center;background:#edf1f7;border-radius:10px;min-width:76px;padding:7px 11px;font-size:14px}.note-hint{opacity:0;justify-content:center;align-items:center;gap:8px;min-height:30px;margin-top:12px;transition:opacity .25s,transform .25s;display:flex;transform:translateY(4px)}.note-hint.visible{opacity:1;transform:none}.note-hint span{color:#5a56bb;background:#eeedff;border-radius:8px;padding:4px 7px;font-size:9px;font-weight:900}.note-hint strong{font-size:12px}.moving-staff{border:3px solid var(--line);background:linear-gradient(var(--line), var(--line)) 0 88px / 100% 2px no-repeat, linear-gradient(var(--line), var(--line)) 0 112px / 100% 2px no-repeat, linear-gradient(var(--line), var(--line)) 0 136px / 100% 2px no-repeat, linear-gradient(var(--line), var(--line)) 0 160px / 100% 2px no-repeat, linear-gradient(var(--line), var(--line)) 0 184px / 100% 2px no-repeat, linear-gradient(90deg, #eef6fff2, #fffdf7fa 24%, #fffdf7fa);border-radius:26px;width:100%;height:290px;position:relative;overflow:hidden;box-shadow:0 8px #2838521a}.moving-staff:after{content:"";background:repeating-linear-gradient(#5e5cd880 0 8px,#0000 8px 15px);border-radius:3px;width:3px;position:absolute;top:42px;bottom:35px;left:24%}.moving-staff.learning:before{content:"新音练习区";z-index:2;color:#514da5;background:#f0efff;border:2px solid #7771d9;border-radius:999px;padding:5px 9px;font-size:10px;font-weight:900;position:absolute;top:16px;left:49%;transform:translate(-50%)}.moving-staff.song-staff{background:linear-gradient(var(--line), var(--line)) 0 88px / 100% 2px no-repeat, linear-gradient(var(--line), var(--line)) 0 112px / 100% 2px no-repeat, linear-gradient(var(--line), var(--line)) 0 136px / 100% 2px no-repeat, linear-gradient(var(--line), var(--line)) 0 160px / 100% 2px no-repeat, linear-gradient(var(--line), var(--line)) 0 184px / 100% 2px no-repeat, linear-gradient(90deg, #eef6ff, #fffdf7 22%, #fffdf7 78%, #f4f0ff)}.moving-staff.song-staff:after{background:linear-gradient(#ff776d,#5e5cd8);width:4px;top:34px;bottom:25px;left:30%;box-shadow:0 0 0 5px #ff776d1a}.song-clef{opacity:.5;left:1.5%}.song-cursor{z-index:7;position:absolute;top:10px;left:30%;transform:translate(-50%)}.song-cursor span{border:2px solid var(--coral-dark);color:#983c40;white-space:nowrap;background:#fff1ee;border-radius:999px;padding:5px 9px;font-size:9px;font-weight:950;display:block}.song-learning-badge{z-index:7;color:#514da5;background:#f0efff;border:2px solid #7771d9;border-radius:999px;padding:5px 8px;font-size:9px;font-weight:900;position:absolute;top:12px;right:12px}.song-runway-note{z-index:4;opacity:.48;width:32px;height:23px;transition:left .18s cubic-bezier(.22,.78,.28,1),opacity .16s,transform .16s;position:absolute;transform:translate(-50%,-50%)rotate(-10deg)scale(.76)}.song-runway-note b{border:3px solid var(--line);background:#75a9ed;border-radius:50%;position:absolute;inset:0;box-shadow:0 3px #26447524}.song-runway-note b:before{content:"";background:var(--line);border-radius:3px;width:4px;height:68px;position:absolute;bottom:8px;right:-3px}.song-runway-note.current{z-index:6;opacity:1;filter:drop-shadow(0 5px 4px #2838522e);transform:translate(-50%,-50%)rotate(-10deg)scale(1.08)}.song-runway-note.current b{background:var(--coral);box-shadow:0 0 0 8px #ff776d24,0 3px #26447524}.song-runway-note.past{opacity:.22;transform:translate(-50%,-50%)rotate(-10deg)scale(.64)}.song-runway-note.past 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