:root{color-scheme:light;--ink:#242b39;--muted:#717987;--line:#e5e8ee;--blue:#405bdb;--blue-soft:#eef1ff;--paper:#fff;--bg:#f7f8fa;--side:#fafbfd;--amber:#96651c;--radius:14px;font-family:Inter,"Segoe UI","Microsoft YaHei",sans-serif;font-synthesis:none;font-size:15px;line-height:1.6;color:var(--ink);background:var(--bg)}
*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,a,summary,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer;color:inherit}a{color:inherit;text-decoration:none}button:disabled{cursor:default;opacity:.35}button,summary,a,input,select{outline-offset:4px}button:focus-visible,summary:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--blue)}[hidden]{display:none!important}svg.icon{width:18px;height:18px;display:block;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex:none}button svg,a svg,summary svg{pointer-events:none}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;top:-80px;left:20px;z-index:50;background:var(--blue);color:#fff;padding:10px 20px;border-radius:8px}.skip-link:focus{top:10px}
.sidebar{position:fixed;inset:0 auto 0 0;width:260px;background:var(--side);border-right:1px solid var(--line);padding:32px 20px 22px;display:flex;flex-direction:column;z-index:30}.brand{display:flex;gap:13px;align-items:center;font-size:24px;font-weight:650;line-height:1.3;margin:2px 8px 44px;letter-spacing:.04em}.brand-mark{background:var(--blue);color:#fff;font-family:"Microsoft YaHei",sans-serif;font-size:23px;width:44px;height:48px;display:grid;place-items:center;border-radius:13px 13px 13px 4px;box-shadow:0 5px 15px #405bdb19}.brand small{display:block;font-size:12px;color:var(--muted);font-weight:400;letter-spacing:.1em;margin-top:7px}.library-heading{display:flex;align-items:center;justify-content:space-between;margin:0 9px 14px}.library-heading h2{font-size:13px;font-weight:600;margin:0;color:#626c7c}.count{font-size:12px;color:#687387;background:#edf0f5;border-radius:6px;min-width:22px;text-align:center;line-height:22px}.search-field{border:1px solid var(--line);background:#fff;border-radius:8px;display:flex;align-items:center;gap:8px;padding:9px 10px;color:#8991a0;margin-bottom:18px}.search-field .icon{width:16px;height:16px}.search-field:focus-within{border-color:#a5b2f3}.search-field input{width:100%;min-width:0;outline:none;border:0;background:transparent;font-size:13px;color:var(--ink)}.search-field input::placeholder{color:#939aa7}.song-list{display:flex;flex-direction:column;gap:7px;overflow:auto}.song-item{width:100%;display:flex;gap:11px;align-items:center;text-align:left;background:transparent;border:1px solid transparent;border-radius:10px;padding:12px 10px}.song-item:hover{background:#f0f2f7}.song-item[aria-current=true]{background:var(--blue-soft);border-color:#dde3ff}.song-thumb{width:39px;height:46px;flex:none;background:white;border:1px solid #e0e4ed;border-radius:4px;overflow:hidden;display:grid;place-items:center;color:var(--blue)}.song-thumb img{height:100%;width:100%;object-fit:cover;object-position:0 0;opacity:.8}.song-item-text{min-width:0;flex:1}.song-item-text strong{display:block;font-weight:600;font-size:14px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.song-item-text small{display:block;font-size:12px;color:#7b8494;margin-top:4px}.song-item[aria-current=true] strong{color:#364ec7}.song-current-dot{height:6px;width:6px;background:var(--blue);border-radius:50%;flex:none}.sidebar-bottom{margin-top:auto;padding:30px 8px 0;display:flex;gap:10px;color:#8b93a0}.tiny-note{font-size:22px;color:#aab3c7}.sidebar-bottom p{font-size:12px;margin:0;color:#747e90}.sidebar-bottom small{font-size:11px;line-height:1.8;display:block;margin-top:5px;color:#9199a7}.no-results{font-size:13px;line-height:1.9;margin:18px 9px;color:var(--muted)}
.main{margin-left:260px;min-height:100vh}.topbar{height:69px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;padding:0 42px;background:#ffffffc4}.breadcrumb{display:flex;gap:13px;align-items:center;font-size:13px;color:#77808f;min-width:0}.breadcrumb #breadcrumb-title{color:#4e596b;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.slash{color:#b6bdc9}.topbar-label{color:#9aa2af;font-size:12px;letter-spacing:.22em}.menu-button{display:none!important}.workspace{max-width:1180px;margin:auto;padding:35px 42px 20px}.song-header{display:grid;grid-template-columns:1fr auto;column-gap:20px;row-gap:19px;margin-bottom:23px}.eyebrow{display:flex;align-items:center;gap:10px;font-size:12px;color:#7b8391}.dot{color:#b3bac6}.status{font-size:11px;padding:2px 7px;border-radius:5px;background:#fbf0dc;color:var(--amber);line-height:1.7}.song-heading h1{font-size:29px;font-weight:650;letter-spacing:.015em;line-height:1.5;margin:7px 0 6px}.performer{font-size:13px;color:var(--muted);margin:0}.header-actions{display:flex;align-items:center;gap:10px;align-self:center}.button{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:9px 13px;border:1px solid var(--line);border-radius:8px;background:#fff;white-space:nowrap;font-size:13px;font-weight:500;line-height:1.5;transition:background .15s,border-color .15s}.button:hover{background:#f0f2f7;border-color:#d4dae6}.button-primary{color:white;background:var(--blue);border-color:var(--blue);box-shadow:0 3px 8px #405bdb17}.button-primary:hover{background:#344dcc;border-color:#344dcc}.button-quiet{border-color:transparent;background:transparent;color:#616c7d}.button-small{padding:6px 10px;font-size:12px}.button-small span{color:#717b8d;font-variant-numeric:tabular-nums}.button-small[aria-pressed=true]{color:var(--blue);background:var(--blue-soft);border-color:#c9d3ff}.download-menu{position:relative;z-index:15}.download-menu summary{list-style:none;cursor:pointer}.download-menu summary::-webkit-details-marker{display:none}.download-menu summary .icon:last-child{width:13px}.download-list{position:absolute;top:calc(100% + 8px);right:0;width:235px;border:1px solid var(--line);border-radius:12px;padding:7px;background:#fff;box-shadow:0 15px 45px #29315121}.download-list a{display:block;font-size:13px;padding:9px 11px;border-radius:6px}.download-list a:hover{background:var(--blue-soft);color:var(--blue)}.download-list a small{display:block;font-size:11px;color:var(--muted);margin-top:2px}.song-facts{grid-column:1/-1;display:flex;align-items:center;flex-wrap:wrap;gap:0;color:#626c7c;font-size:12px}.fact{display:flex;gap:6px;align-items:center;padding:0 19px;border-left:1px solid #dce1e9;line-height:1.2}.fact:first-child{padding-left:0;border-left:0}.fact .icon{width:14px;height:14px;color:#8f99ab}.fact button{border:0;padding:0;background:none;font-size:inherit;color:inherit;border-bottom:1px dotted #b5bed0;line-height:1.4}
.player{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 21px 0;box-shadow:0 3px 12px #29315103;margin-bottom:28px}.player-top{display:flex;align-items:center;gap:14px}.source-switch{padding:3px;border-radius:8px;display:flex;background:#f1f3f7;flex:none}.source-switch button{border:0;border-radius:5px;background:transparent;padding:6px 13px;line-height:1.35;font-size:12px;color:#778191}.source-switch button[aria-pressed=true]{color:#394b8b;background:#fff;box-shadow:0 1px 5px #243c6812}.audio-caption{font-size:12px;color:#818a9a}.speed-control{margin-left:auto;display:flex;align-items:center;gap:7px;color:#687489}.speed-control .icon{width:16px;height:16px}.speed-control select{background:#fff;border:0;font-size:12px;padding:5px 2px;color:#58677d;cursor:pointer}.player-main{display:flex;align-items:center;gap:17px;margin:16px 0 18px}.play-button{height:43px;width:43px;flex:none;background:var(--blue);color:#fff;border:0;border-radius:50%;display:grid;place-items:center;box-shadow:0 4px 11px #405bdb20}.play-button:hover{background:#3249c5}.play-button .icon{width:18px;height:18px;fill:currentColor;stroke-width:1.4}.waveform-wrap{position:relative;flex:1;min-width:0;height:53px}.waveform-wrap canvas{width:100%;height:100%;display:block}.waveform-wrap input{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;cursor:pointer;z-index:3}.waveform-wrap:focus-within{outline:2px solid var(--blue);outline-offset:3px;border-radius:4px}.loop-region{position:absolute;top:0;bottom:0;border-inline:2px solid #98a5ed;background:#405bdb0b;pointer-events:none;border-radius:3px}.time-display{font-size:12px;display:flex;gap:6px;align-items:center;white-space:nowrap;flex:none;font-variant-numeric:tabular-nums}.time-display #current-time{color:#44516b;font-weight:600}.time-display #total-time,.time-separator{color:#929aab}.practice{border-top:1px solid #eff1f5}.practice>summary{list-style:none;display:flex;align-items:center;gap:7px;padding:11px 0;cursor:pointer;font-size:12px;color:#606d84}.practice>summary::-webkit-details-marker{display:none}.practice>summary .icon{width:14px;height:14px}.practice>summary .icon:last-child{margin-left:auto;color:#9ba5b6}.practice[open]>summary .icon:last-child{transform:rotate(180deg)}.practice-summary{margin-left:6px;color:#99a1af;font-size:11px}.practice-controls{display:flex;align-items:center;flex-wrap:wrap;gap:8px;padding:3px 0 16px}.practice-tip{font-size:11px;color:#8b94a4}.text-button{font-size:12px;background:none;border:0;padding:6px 8px;color:#72809a;border-radius:5px}.text-button:hover{color:var(--blue);background:var(--blue-soft)}.inline-error{font-size:12px;color:#ae4a35;background:#fff3ee;border-radius:6px;padding:8px;margin:0 0 12px}
.content-tabs{display:flex;gap:27px;border-bottom:1px solid var(--line)}.content-tab{display:flex;align-items:center;gap:7px;border:0;border-bottom:2px solid transparent;background:none;padding:0 0 13px;margin-bottom:-1px;color:#858d9b;font-size:13px}.content-tab .icon{width:16px;height:16px}.content-tab[aria-selected=true]{color:#3f55bd;border-bottom-color:var(--blue);font-weight:600}.content-tab:hover{color:var(--blue)}.score-toolbar{display:flex;align-items:center;justify-content:space-between;padding:12px 0;gap:10px}.page-controls,.zoom-controls{display:flex;align-items:center;gap:5px}.page-controls>span{font-size:12px;min-width:78px;text-align:center;color:#717d92;font-variant-numeric:tabular-nums}.icon-button{display:inline-flex;align-items:center;justify-content:center;border:0;background:transparent;width:31px;height:31px;padding:0;border-radius:6px;color:#7b879b}.icon-button:hover:not(:disabled){background:#e9edf6;color:var(--blue)}.icon-button .icon{width:16px;height:16px}.zoom-controls .text-button{min-width:64px;font-size:11px}.score-stage{background:#edf0f5;border:1px solid #e3e7ee;border-radius:10px;padding:22px;overflow:auto;max-width:100%;text-align:center;min-height:180px}.score-image{display:block;background:white;width:100%;max-width:none;margin:0 auto;border-radius:2px;box-shadow:0 4px 15px #222d4910;user-select:none}.score-caption{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:12px;font-size:11px;color:#8c94a3}.score-caption>span:first-child{display:flex;gap:6px;align-items:center}.status-dot{width:5px;height:5px;border-radius:50%;background:#c5a874;display:inline-block}.empty-message{color:var(--muted);font-size:14px;margin:50px auto}.roll-heading{display:flex;align-items:center;gap:15px;justify-content:space-between;margin:23px 0 18px}.roll-heading h2,.song-notes h2{font-size:17px;font-weight:600;margin:0 0 6px}.roll-heading p{font-size:12px;color:var(--muted);margin:0}.note-count{font-size:12px;color:#677590;background:#edf0f7;border-radius:6px;padding:5px 9px;white-space:nowrap}.roll-stage{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;position:relative}.roll-stage canvas{display:block;width:100%;height:350px;cursor:crosshair}.roll-readout{font-size:12px;color:#7c879b;padding:11px 17px;border-top:1px solid #eef0f6;min-height:43px}.roll-legend{display:flex;align-items:center;gap:20px;flex-wrap:wrap;font-size:12px;color:#838c9c;margin-top:12px}.roll-legend span{display:flex;gap:6px;align-items:center}.roll-legend i{display:inline-block;width:12px;height:6px;border-radius:2px;background:#8799e6}.roll-legend i.current{width:2px;height:11px;background:var(--blue)}.muted{color:#99a2b1;margin-left:auto}.song-notes{padding:28px 6px 12px;max-width:740px}.song-notes>p,.song-notes li{font-size:14px;line-height:1.9;color:#6c778c}.song-notes h3{font-size:14px;margin:26px 0 8px;font-weight:600}.song-notes ul{padding-left:20px;margin:0 0 25px}.song-notes li+li{margin-top:6px}.file-guide{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:14px 0}.file-guide summary{list-style:none;cursor:pointer;font-size:13px;display:flex;align-items:center;justify-content:space-between}.file-guide summary::-webkit-details-marker{display:none}.file-guide dl{display:grid;grid-template-columns:145px 1fr;gap:11px 15px;font-size:13px;padding:10px 0}.file-guide dt{color:#475975}.file-guide dd{margin:0;color:#7e899c}.song-notes .credit{font-size:12px;margin-top:22px;color:#9199a7}.workspace-footer{font-size:11px;color:#a0a8b5;display:flex;justify-content:space-between;gap:12px;padding:28px 0 10px}.footer-divider{padding:0 8px;color:#c4cad3}.empty-library{max-width:650px;margin:100px auto;padding:30px;text-align:center}.empty-library h1{font-size:24px}.empty-library p{color:var(--muted)}.tooltip{position:fixed;max-width:260px;padding:10px 12px;background:#29344d;color:#fff;box-shadow:0 5px 20px #1b27412b;border-radius:7px;font-size:12px;line-height:1.7;z-index:100;pointer-events:none}.toast{position:fixed;bottom:28px;left:calc(50% + 130px);transform:translateX(-50%);max-width:calc(100vw - 40px);padding:11px 19px;font-size:13px;border-radius:8px;background:#29344d;color:#fff;box-shadow:0 6px 25px #17213e25;z-index:100;text-align:center}
@media(min-width:1500px){.workspace{padding-top:43px}.song-heading h1{font-size:31px}}
@media(max-width:1100px){.sidebar{width:225px;padding-inline:15px}.main{margin-left:225px}.topbar{padding-inline:28px}.workspace{padding:28px}.header-actions{gap:5px}.button{padding:8px 11px}.fact{padding-inline:13px}.audio-caption{font-size:11px}.toast{left:calc(50% + 112px)}}
@media(max-width:850px){.sidebar{width:255px;transform:translateX(-100%);transition:transform .18s}.sidebar.is-open{transform:translateX(0)}.sidebar-backdrop{position:fixed;inset:0;width:100%;height:100%;border:0;background:#1c284b4d;z-index:25}.main{margin-left:0}.topbar{height:58px;padding:0 22px}.menu-button{display:inline-flex!important;margin-left:-6px}.workspace{max-width:920px;padding:27px 22px}.toast{left:50%}.song-heading h1{font-size:28px}.sidebar-bottom small{font-size:12px}.search-field input{font-size:16px}.song-item-text small{font-size:13px}}
@media(max-width:580px){:root{font-size:15px}.topbar{padding-inline:16px}.topbar-label{display:none}.workspace{padding:22px 16px 14px}.song-header{grid-template-columns:1fr;row-gap:13px;margin-bottom:19px}.song-heading h1{font-size:26px;margin-block:8px 5px}.eyebrow{font-size:12px}.performer{font-size:13px}.header-actions{grid-row:3;justify-self:stretch;gap:8px;flex-direction:row-reverse;justify-content:flex-end}.header-actions .button{padding:9px 12px;min-height:42px}.song-facts{grid-row:2;gap:9px 0;font-size:12px}.fact{padding-inline:11px}.fact .icon{display:none}.fact:first-child{padding-left:0}.player{padding:14px 15px 0;margin-bottom:24px}.player-top{gap:8px;flex-wrap:wrap}.audio-caption{order:3;width:100%;font-size:12px;margin-top:0}.source-switch button{padding:8px 14px;font-size:13px}.speed-control select{font-size:14px;min-height:36px}.player-main{gap:12px;margin:12px 0 15px;flex-wrap:wrap}.play-button{width:42px;height:42px}.waveform-wrap{height:46px;flex-basis:calc(100% - 64px)}.time-display{width:100%;justify-content:flex-end;margin-top:-7px;font-size:12px}.practice>summary{font-size:13px;padding-block:13px}.practice-summary{font-size:12px;margin-left:0}.practice-tip{font-size:12px;flex-basis:100%;margin-top:3px}.button-small{min-height:40px;font-size:12px}.practice-controls{gap:6px}.text-button{min-height:40px;font-size:12px}.content-tabs{gap:23px}.content-tab{font-size:13px;gap:5px;padding-bottom:12px;min-height:40px}.content-tab .icon{width:15px;height:15px}.icon-button{min-width:36px;height:40px}.page-controls{gap:0}.page-controls>span{min-width:72px;font-size:12px}.zoom-controls{gap:0}.zoom-controls .text-button{font-size:12px;min-width:62px;padding-inline:3px}.score-toolbar{gap:0;padding:7px 0}.score-stage{padding:8px;border-radius:7px}.score-caption{font-size:12px;align-items:flex-start;flex-wrap:wrap;margin-top:12px}.score-caption>span:last-child{display:none}.workspace-footer{font-size:12px;flex-wrap:wrap;line-height:1.8;padding-top:23px}.workspace-footer>span:last-child{display:none}.roll-heading{align-items:flex-start;gap:8px}.roll-heading h2{font-size:16px}.roll-heading p{font-size:12px;max-width:210px}.note-count{font-size:11px;padding:4px 6px}.roll-stage canvas{height:310px}.roll-legend{font-size:12px;gap:12px}.roll-legend .muted{margin-left:0;flex-basis:100%}.file-guide dl{grid-template-columns:1fr;gap:4px}.file-guide dd{margin-bottom:10px}.song-notes{padding-top:22px}.song-notes>p,.song-notes li{font-size:14px}.download-list{right:auto;left:0}.tooltip{font-size:13px}.no-results{font-size:14px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important;scroll-behavior:auto!important}}
.status.reviewed{background:#e6f3ed;color:#357a55}.practice>summary>[data-icon]:last-child{margin-left:auto}.practice>summary .icon{margin-left:0}.practice[open]>summary .icon{transform:none}.practice[open]>summary>[data-icon]:last-child .icon{transform:rotate(180deg)}