:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;color:#1f2328;--bg:#f6f7f9;--surface:#fff;--surface-muted:#f0f2f5;--line:#dfe3e8;--line-soft:#edf0f3;--text:#1f2328;--muted:#6a737d;--faint:#8c959f;--brand:#d62d45;--brand-dark:#ad1f33;--brand-soft:#fff0f2;--accent:#0f766e;--warning:#9a6700;--shadow:0 20px 50px #1f23281a;--radius:8px;background:#f6f7f9;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif}*{box-sizing:border-box}body{background:var(--bg);min-width:320px;margin:0}button,input,select,textarea{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}.app-shell{background:var(--bg);grid-template-rows:64px minmax(0,1fr);grid-template-columns:264px minmax(0,1fr);min-height:100vh;display:grid}.topbar{border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);z-index:20;background:#ffffffeb;grid-column:1/-1;align-items:center;gap:18px;padding:0 24px;display:flex;position:sticky;top:0}.brand{letter-spacing:0;align-items:center;gap:10px;width:240px;font-weight:750;display:flex}.brand-mark{background:var(--brand);color:#fff;border-radius:8px;place-items:center;width:32px;height:32px;font-weight:800;display:grid}.top-search{flex:1;min-width:260px;max-width:700px;position:relative}.top-search input,.field,.select-field,.textarea-field{border:1px solid var(--line);border-radius:var(--radius);width:100%;color:var(--text);background:#fff;outline:none;transition:border-color .15s,box-shadow .15s}.top-search input{height:40px;padding:0 44px 0 14px}.field,.select-field{height:40px;padding:0 12px}.textarea-field{resize:vertical;min-height:92px;padding:10px 12px}.top-search input:focus,.field:focus,.select-field:focus,.textarea-field:focus{border-color:var(--brand);box-shadow:0 0 0 3px #d62d451f}.search-submit{background:var(--brand);color:#fff;border:0;border-radius:6px;width:36px;height:32px;position:absolute;top:4px;right:4px}.top-actions{align-items:center;gap:10px;display:flex}.sidebar{border-right:1px solid var(--line);background:#fff;padding:18px 14px;overflow-y:auto}.sidebar-section{margin-bottom:24px}.sidebar-title{color:var(--faint);letter-spacing:.08em;margin:0 0 10px;padding:0 10px;font-size:12px;font-weight:700}.nav-list,.plain-list{margin:0;padding:0;list-style:none}.nav-link,.mini-link{min-height:36px;color:var(--muted);border-radius:7px;justify-content:space-between;align-items:center;gap:10px;padding:8px 10px;display:flex}.nav-link.router-link-active,.nav-link:hover,.mini-link:hover{color:var(--text);background:var(--surface-muted)}.main{min-width:0;overflow:auto}.page{width:min(1180px,100vw - 320px);margin:0 auto;padding:28px 28px 56px}.page-wide{width:min(1360px,100vw - 320px)}.eyebrow{color:var(--brand);margin-bottom:8px;font-size:13px;font-weight:750}.page-title{letter-spacing:0;margin:0;font-size:34px;line-height:1.16}.page-subtitle{color:var(--muted);max-width:760px;margin:12px 0 0;line-height:1.7}.toolbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:14px;display:flex}.panel{border:1px solid var(--line);border-radius:var(--radius);background:#fff}.panel-pad{padding:20px}.grid{gap:16px;display:grid}.home-grid{grid-template-columns:minmax(0,1.35fr) 380px;margin-top:24px}.filter-grid{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px}.search-field{grid-column:span 2}.section-header{justify-content:space-between;align-items:end;gap:16px;margin-bottom:14px;display:flex}.section-title{margin:0;font-size:18px}.muted{color:var(--muted)}.tiny{color:var(--faint);font-size:12px}.button,.ghost-button,.icon-button,.danger-button{border:1px solid #0000;border-radius:7px;justify-content:center;align-items:center;gap:8px;min-height:38px;padding:0 14px;font-weight:700;transition:transform .15s,background .15s,border-color .15s;display:inline-flex}.text-button{color:var(--brand);background:0 0;border:0;justify-self:start;padding:4px 0;font-weight:700}.text-button:hover{color:var(--brand-dark);text-decoration:underline}.button{background:var(--brand);color:#fff}.button:hover{background:var(--brand-dark)}.ghost-button{border-color:var(--line);color:var(--text);background:#fff}.ghost-button:hover,.icon-button:hover{background:var(--surface-muted);border-color:#c8d0d8}.danger-button{color:var(--brand);background:#fff;border-color:#ffd8de}.icon-button{border-color:var(--line);width:38px;color:var(--text);background:#fff;padding:0}.button:disabled,.ghost-button:disabled,.danger-button:disabled{cursor:not-allowed;opacity:.55}.chip-row{flex-wrap:wrap;gap:8px;display:flex}.chip{border:1px solid var(--line);min-height:30px;color:var(--muted);background:#fff;border-radius:999px;align-items:center;gap:6px;padding:5px 10px;font-size:13px;display:inline-flex}.chip.active,.chip-button.active{color:var(--brand);background:var(--brand-soft);border-color:#ffc9d1}.chip-button{border:1px solid var(--line);min-height:32px;color:var(--text);background:#fff;border-radius:999px;padding:5px 12px}.combo-card{text-align:left;border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:14px;transition:border-color .15s,box-shadow .15s,transform .15s}.combo-card:hover{border-color:#c8d0d8;transform:translateY(-1px);box-shadow:0 12px 24px #1f232814}.combo-card strong{margin-bottom:6px;display:block}.score-grid{grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:16px;display:grid}.score-card{border:1px solid var(--line);border-radius:var(--radius);background:#fff;grid-template-columns:78px minmax(0,1fr);gap:14px;min-height:154px;padding:14px;display:grid}.score-cover{aspect-ratio:.72;color:#8a6844;background:linear-gradient(#ffffff8c,#0000 42%),repeating-linear-gradient(0deg,#1f23281f 0 1px,#0000 1px 12px),#f3eadf;border:1px solid #e6d8c8;border-radius:6px;place-items:center;width:78px;font-size:26px;font-weight:750;display:grid}.score-card-main{flex-direction:column;gap:8px;min-width:0;display:flex}.score-title{color:var(--text);font-weight:760;line-height:1.35}.score-title:hover{color:var(--brand)}.score-original-title{color:var(--faint);text-overflow:ellipsis;white-space:nowrap;font-size:11px;line-height:1.35;overflow:hidden}.detail-original-title{color:var(--muted);margin:4px 0 0;font-family:Georgia,Times New Roman,serif;font-size:20px;font-style:italic;line-height:1.3}.meta-original{color:var(--faint)}.score-meta{color:var(--muted);font-size:13px;line-height:1.5}.score-actions{align-items:center;gap:8px;margin-top:auto;display:flex}.result-layout{grid-template-columns:280px minmax(0,1fr);gap:18px;margin-top:20px;display:grid}.filter-stack{gap:14px;display:grid}.filter-block label{color:var(--muted);margin-bottom:6px;font-size:12px;font-weight:700;display:block}.detail-hero{grid-template-columns:150px minmax(0,1fr);gap:22px;display:grid}.detail-cover{aspect-ratio:.72;color:#7f5f3f;background:linear-gradient(#fff9,#0000 38%),repeating-linear-gradient(0deg,#1f23281f 0 1px,#0000 1px 14px),#f0e2d2;border:1px solid #e0cdb8;border-radius:8px;place-items:center;width:150px;font-size:44px;font-weight:800;display:grid}.info-table{gap:10px;display:grid}.info-row{border-bottom:1px solid var(--line-soft);grid-template-columns:92px minmax(0,1fr);gap:12px;padding-bottom:10px;display:grid}.info-row span:first-child{color:var(--faint)}.empty-state,.loading-state{text-align:center;min-height:180px;color:var(--muted);border:1px dashed var(--line);border-radius:var(--radius);background:#ffffffb3;place-items:center;padding:22px;display:grid}.modal-backdrop{z-index:50;background:#1f23287a;place-items:center;padding:20px;display:grid;position:fixed;inset:0}.modal{border:1px solid var(--line);border-radius:var(--radius);width:min(440px,100%);box-shadow:var(--shadow);background:#fff;padding:22px}.app-shell{display:block}.topbar{grid-template-columns:auto auto minmax(220px,1fr) auto;max-width:none;padding:0 4vw;display:grid}.brand{width:auto}.main-nav{color:var(--muted);align-items:center;gap:18px;font-size:14px;display:flex}.top-search{justify-self:center;width:min(100%,440px);max-width:440px}.top-search button{color:var(--muted);background:0 0;border:0;font-size:22px;position:absolute;top:5px;right:6px}.top-actions{justify-self:end}.compact{min-height:34px}.account-button{text-align:right;color:var(--text);background:0 0;border:0;font-weight:700;display:grid}.account-button small{color:var(--faint);font-weight:400}.site-footer{max-width:1360px;color:var(--faint);justify-content:space-between;gap:16px;margin:0 auto;padding:24px 28px 38px;font-size:13px;display:flex}.hero-panel{color:#fff;background:radial-gradient(circle at 86% 12%,#ffffff38,#0000 28%),linear-gradient(125deg,#152f49,#205b71 62%,#c95655);border-radius:20px;grid-template-columns:minmax(0,1fr) 290px;gap:32px;padding:48px;display:grid}.hero-panel h1{letter-spacing:-.04em;max-width:760px;margin:0;font-size:clamp(34px,4.5vw,58px);line-height:1.08}.hero-panel .eyebrow{color:#cfeef1}.hero-copy{color:#ffffffc7;max-width:660px;line-height:1.8}.hero-search{background:#fff;border-radius:12px;gap:10px;width:min(100%,640px);margin-top:28px;padding:7px;display:flex}.hero-search input,.library-search input{background:0 0;border:0;outline:0;flex:1;min-width:0;padding:0 14px;font-size:15px}.hero-stats{color:#ffffffbf;flex-wrap:wrap;gap:24px;margin-top:28px;font-size:13px;display:flex}.hero-stats strong{color:#fff;font-size:20px;display:block}.hero-note{background:#0a202f42;border:1px solid #ffffff3d;border-radius:16px;align-self:end;padding:24px;line-height:1.6}.hero-note p{color:#ffffffbf;font-size:14px}.hero-note-icon{margin-bottom:22px;font-size:34px;display:block}.finder-heading{justify-content:space-between;align-items:flex-start;gap:16px;display:flex}.selection-row{flex-wrap:wrap;gap:8px;min-height:42px;margin:20px 0;display:flex}.selection-chip,.placeholder-chip{color:#174c5a;background:#eef8fa;border:1px solid #bcd5df;border-radius:999px;padding:8px 12px}.selection-chip span{margin-left:6px}.placeholder-chip{color:var(--faint);background:#f8fafb;border-style:dashed}.instrument-picker{grid-template-columns:repeat(auto-fill,minmax(118px,1fr));gap:8px;display:grid}.instrument-button{border:1px solid var(--line);text-align:left;background:#fff;border-radius:9px;min-height:54px;padding:8px 10px}.instrument-button span,.instrument-button small{display:block}.instrument-button small{color:var(--faint);margin-top:4px}.finder-result{border-top:1px solid var(--line-soft);flex-wrap:wrap;align-items:center;gap:14px;margin-top:22px;padding-top:18px;display:flex}.match-summary{flex-wrap:wrap;align-items:center;gap:9px;margin-right:auto;display:flex}.result-link{color:var(--brand);background:0 0;border:0;padding:0;font-weight:700}.next-choices{flex-wrap:wrap;align-items:center;gap:7px;display:flex}.split-feature{border:1px solid var(--line);background:#fff;border-radius:14px;grid-template-columns:1fr 1fr;gap:24px;padding:28px;display:grid}.family-list{grid-template-columns:repeat(2,1fr);gap:8px;margin-top:18px;display:grid}.family-link{border:1px solid var(--line-soft);border-radius:8px;justify-content:space-between;padding:11px;display:flex}.family-link:hover{border-color:#9fc7d0}.family-link small,.popular-list span{color:var(--faint)}.popular-list{gap:12px;margin-top:18px;padding-left:22px;display:grid}.popular-list li{padding-left:6px}.popular-list a{font-weight:700;display:block}.popular-list span{font-size:13px}.library-heading{justify-content:space-between;align-items:flex-end;gap:20px;display:flex}.library-layout{grid-template-columns:272px minmax(0,1fr);gap:28px;margin-top:26px;display:grid}.library-sidebar{align-self:start;max-height:calc(100vh - 104px);padding-right:8px;position:sticky;top:82px;overflow:auto}.filter-section{border-bottom:1px solid var(--line);padding:16px 0}.filter-section h2{margin:0 0 10px;font-size:15px}.filter-section label{color:var(--muted);gap:6px;margin-top:12px;font-size:13px;display:grid}.filter-section select,.result-toolbar select{border:1px solid var(--line);background:#fff;border-radius:7px;height:36px;padding:0 8px}.filter-reset{background:0 0;border:0;margin-top:16px}.directory-tree{margin:0;padding:0 0 0 10px;list-style:none}.directory-tree .directory-tree{border-left:1px solid var(--line-soft);margin-left:8px}.directory-node{border-radius:6px;align-items:center;gap:4px;min-height:30px;display:flex}.directory-node.selected{background:var(--brand-soft)}.tree-toggle,.tree-spacer{flex:none;width:20px}.tree-toggle{color:var(--faint);background:0 0;border:0}.tree-label{text-align:left;text-overflow:ellipsis;white-space:nowrap;background:0 0;border:0;flex:1;padding:4px 0;overflow:hidden}.tree-label:hover{color:var(--brand)}.tree-count{color:var(--faint);padding-right:5px;font-size:11px}.library-search{border:1px solid var(--line);background:#fff;border-radius:11px;gap:8px;padding:7px;display:flex}.active-filter-row{flex-wrap:wrap;gap:7px;margin:16px 0;display:flex}.active-filter-chip{background:var(--brand-soft);color:var(--brand);border:1px solid #f3a6b2;border-radius:999px;align-items:center;gap:5px;padding:6px 10px;font-size:13px;display:inline-flex}.active-filter-chip:hover{border-color:var(--brand)}.active-filter-chip b{font-size:15px;line-height:.8}.filter-instrument{border:1px solid var(--line);background:#fff;border-radius:999px;padding:6px 10px;font-size:13px}.filter-instrument.selected{color:var(--brand);background:var(--brand-soft);border-color:#f3a6b2}.result-toolbar{justify-content:space-between;align-items:center;margin:18px 0;display:flex}.pagination-row{justify-content:center;align-items:center;gap:14px;margin-top:28px;display:flex}.library-cards{grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}.library-empty{text-align:center;color:var(--muted);gap:8px}.library-empty strong{color:var(--ink);font-size:17px}.library-empty span{max-width:360px;line-height:1.65}.error-state{gap:12px}.error-state .ghost-button{margin-top:4px}.score-card-skeleton{background:linear-gradient(100deg,#f2f3f5 25%,#fafbfc 40%,#f2f3f5 55%) 0 0/220% 100%;border:0;min-height:164px;animation:1.35s ease-in-out infinite score-skeleton}.score-card-skeleton:before,.score-card-skeleton:after{content:"";background:#ffffff8a;border-radius:5px;height:12px;margin:22px;display:block}.score-card-skeleton:after{width:52%;margin-top:12px}.source-copyright{color:var(--muted);margin-top:6px;font-size:12px;display:block}@keyframes score-skeleton{to{background-position:-120% 0}}.tree-skeleton{gap:9px;padding:6px 0;display:grid}.tree-skeleton i,.composer-skeleton i{background:#edf0f2;border-radius:5px;height:12px;display:block}.tree-skeleton i:nth-child(3n){width:62%}.tree-skeleton i:nth-child(3n+1){width:86%}.composer-skeleton{grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:26px;display:grid}.composer-skeleton i{height:70px}.detail-skeleton{grid-template-columns:minmax(0,1fr) 290px;gap:24px;display:grid}.detail-skeleton div{background:linear-gradient(100deg,#f2f3f5 25%,#fafbfc 40%,#f2f3f5 55%) 0 0/220% 100%;border-radius:12px;min-height:220px;animation:1.35s ease-in-out infinite score-skeleton}.detail-skeleton div:first-child{grid-column:1/-1;min-height:280px}.score-card-heading{align-items:flex-start;gap:8px;display:flex}.difficulty-dot{color:#2868b8;background:#eef6ff;border:1px solid #afd3fb;border-radius:50%;flex:none;place-items:center;width:22px;height:22px;font-size:12px;font-weight:700;display:grid}.difficulty-chip{align-items:center;gap:1px;display:inline-flex}.difficulty-chip i{color:#d6d9dd;font-size:13px;font-style:normal}.difficulty-chip i.filled{color:var(--brand)}.difficulty-chip i:last-of-type{margin-right:5px}.clamp-one{white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.text-link{color:var(--brand);font-weight:700}.icon-text-button{color:var(--muted);background:0 0;border:0;padding:0}.icon-text-button:hover{color:var(--brand)}.back-link{color:var(--muted);margin-bottom:18px;display:inline-block}.detail-banner{border:1px solid var(--line);background:#fff;border-radius:16px;grid-template-columns:164px minmax(0,1fr);gap:30px;padding:32px;display:grid;position:relative}.detail-favorite-button{color:#c7cad0;cursor:pointer;background:0 0;border:0;justify-content:center;align-items:center;width:28px;height:28px;padding:0;transition:color .15s;display:flex;position:absolute;top:16px;right:16px}.detail-favorite-button:hover,.detail-favorite-button.active{color:var(--brand)}.detail-main h1{margin:0;font-size:30px;line-height:1.22}.detail-composer{color:var(--muted);margin:10px 0 18px;font-size:17px}.detail-layout{grid-template-columns:minmax(0,1fr) 290px;gap:24px;margin-top:24px;display:grid}.detail-content{gap:18px;display:grid}.content-section,.side-card{border:1px solid var(--line);background:#fff;border-radius:12px;padding:24px}.content-section h2{margin:0 0 12px;font-size:18px}.instrument-summary{flex-wrap:wrap;gap:10px;display:flex}.instrument-stat{background:#f4f8f9;border-radius:8px;min-width:90px;padding:13px}.instrument-stat strong,.instrument-stat span{display:block}.instrument-stat strong{color:#265b68;font-size:24px}.detail-note{color:var(--muted);line-height:1.7}.source-list{gap:10px;margin-top:16px;display:grid}.source-row,.history-list article{border:1px solid var(--line-soft);border-radius:8px;justify-content:space-between;align-items:center;gap:16px;padding:14px;display:flex}.source-row p,.history-list p{color:var(--faint);margin:5px 0 0;font-size:13px}.source-row-actions{flex:none;gap:4px;display:flex}.inline-pdf-viewer{border:1px solid var(--line-soft);background:#f4f5f7;border-radius:8px;flex-direction:column;height:75vh;min-height:420px;display:flex;overflow:hidden}.pdf-viewer{flex-direction:column;height:100%;min-height:0;display:flex}.pdf-viewer-toolbar{border-bottom:1px solid var(--line-soft);background:#fff;flex:none;align-items:center;gap:10px;padding:8px 14px;display:flex}.pdf-viewer-toolbar-gap{flex:1}.pdf-viewer-page-indicator,.pdf-viewer-zoom-indicator{color:var(--faint);text-align:center;min-width:44px;font-size:13px}.pdf-viewer-canvas{flex:1;justify-content:center;min-height:0;padding:16px;display:flex;overflow:auto}.pdf-viewer-canvas canvas{box-shadow:0 1px 4px #1f23281f}.pdf-viewer-error{color:var(--muted);margin:auto}.side-card h3{margin-top:0}.side-card dl{margin:0}.side-card dl div{border-top:1px solid var(--line-soft);grid-template-columns:86px 1fr;gap:10px;padding:10px 0;display:grid}.side-card dt{color:var(--faint)}.side-card dd{margin:0}.history-list{gap:10px;display:grid}.auth-dialog{width:min(840px,100%);box-shadow:var(--shadow);background:#fff;border-radius:18px;grid-template-columns:.85fr 1.15fr;display:grid;overflow:hidden}.auth-intro{color:#fff;background:linear-gradient(145deg,#15324b,#29746e);flex-direction:column;justify-content:space-between;padding:38px;display:flex}.auth-intro h2{font-size:28px;line-height:1.22}.auth-intro small{color:#ffffffa6;line-height:1.6}.auth-form{padding:38px;position:relative}.auth-form h2{margin:0;font-size:26px}.auth-copy{color:var(--muted);margin:10px 0 22px;line-height:1.6}.auth-form form{gap:13px;display:grid}.auth-form label{color:var(--muted);gap:6px;font-size:13px;display:grid}.auth-form input{border:1px solid var(--line);border-radius:8px;outline:none;height:42px;padding:0 10px}.auth-form input:focus{border-color:#5e9cad;box-shadow:0 0 0 3px #dfeff2}.auth-close{color:var(--faint);background:0 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