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UI,Tahoma,Arial,sans-serif;line-height:1.5}[data-theme=win98] .site-shell{background:silver;border-color:#dfdfdf #404040 #404040 #dfdfdf;border-style:solid;border-width:2px;height:calc(100vh - 28px);margin:14px auto;box-shadow:inset 1px 1px #fff,inset -1px -1px gray,5px 5px #00000059}[data-theme=win98] .sidebar-head{background:linear-gradient(90deg,navy,#1084d0);border-bottom:none;align-items:center;gap:4px;min-height:22px;padding:3px 4px 3px 6px;display:flex}[data-theme=win98] .sidebar-site-name{color:#fff;letter-spacing:0;text-shadow:1px 1px #00000080;font-family:MS Sans Serif,Arial,sans-serif;font-size:11px;font-style:normal;font-weight:700}[data-theme=win98] .sidebar-head:after{content:"_ □ ×";color:#000;letter-spacing:3px;background:silver;border-color:#fff gray gray #fff;border-style:solid;border-width:1px;flex-shrink:0;margin-left:auto;padding:1px 5px 2px;font-family:MS Sans Serif,Arial,sans-serif;font-size:9px;font-weight:700;line-height:1}[data-theme=win98] .sidebar{background:silver;border-right:1px solid gray}[data-theme=win98] .sidebar-search-wrap{background:silver;border-bottom:1px solid gray}[data-theme=win98] .sidebar-search-btn{color:#000;background:#fff;border-color:gray #fff #fff gray;border-style:solid;border-width:1px;border-radius:0;font-family:MS Sans Serif,Arial,sans-serif;font-size:11px}[data-theme=win98] .sidebar-search-btn:hover{color:#000;border-color:gray}[data-theme=win98] .sidebar-search-hint{color:gray;font-family:Courier New,Courier,monospace;font-size:9px}[data-theme=win98] .nav-group-label{color:navy;font-variant:normal;letter-spacing:.04em;text-transform:uppercase;background:silver;border-bottom:1px solid gray;padding:5px 10px 4px;font-family:MS Sans Serif,Arial,sans-serif;font-size:10px;font-weight:700}[data-theme=win98] .nav-item{color:#000;padding:2px 6px 2px 22px;font-family:MS Sans Serif,Arial,sans-serif;font-size:11px;transition:none;position:relative}[data-theme=win98] .nav-item:before{content:"📁";font-size:11px;line-height:1;position:absolute;top:1px;left:4px}[data-theme=win98] .nav-item:hover{color:#fff;background:navy}[data-theme=win98] .nav-item.active{color:#fff;background:navy;font-style:normal}[data-theme=win98] .nav-item.active:before,[data-theme=win98] .nav-item:hover:before{content:"📂"}[data-theme=win98] .nav-item-count{color:inherit;font-family:MS Sans Serif,Arial,sans-serif;font-size:10px}[data-theme=win98] .main-content{background:#fff}[data-theme=win98] .page-wrap{padding:24px 32px 64px;animation:none}[data-theme=win98] .page-header{border-bottom:2px solid gray;margin-bottom:20px;padding-bottom:8px;font-size:1.15rem}[data-theme=win98] .page-header,[data-theme=win98] .page-title{font-variant:normal;color:navy;font-family:MS Sans Serif,Arial,sans-serif;font-style:normal;font-weight:700;line-height:1.3}[data-theme=win98] .page-title{font-size:1.5rem}[data-theme=win98] .page-subtitle{color:gray;margin-top:6px;font-family:MS Sans Serif,Arial,sans-serif;font-size:.82rem;font-style:normal}[data-theme=win98] .post-byline,[data-theme=win98] .post-meta{color:gray;font-family:MS Sans Serif,Arial,sans-serif;font-size:11px}[data-theme=win98] .toc{background:silver;border-color:gray #dfdfdf #dfdfdf gray;border-style:solid;border-width:2px;border-radius:0;font-family:MS Sans Serif,Arial,sans-serif;font-size:11px}[data-theme=win98] .toc a{color:navy;font-size:11px}[data-theme=win98] .toc a.active{color:navy;font-weight:700}[data-theme=win98] .draft-modal{background:silver;border-color:#dfdfdf #404040 #404040 #dfdfdf;border-style:solid;border-width:2px;border-radius:0;font-family:MS Sans Serif,Arial,sans-serif}[data-theme=win98] .draft-modal-icon,[data-theme=win98] .draft-modal-title{color:navy;font-family:MS Sans Serif,Arial,sans-serif;font-size:1rem;font-weight:700}[data-theme=win98] .draft-modal-body{color:#000;font-family:MS Sans Serif,Arial,sans-serif;font-size:12px}[data-theme=win98] .draft-modal-hint{color:gray;font-family:MS Sans Serif,Arial,sans-serif;font-size:10px}[data-theme=win98] .draft-modal-countdown{background:navy}[data-theme=win98] .post-card{background:#fff;border-color:gray #dfdfdf #dfdfdf gray;border-style:solid;border-width:2px;border-radius:0}[data-theme=win98] .post-card:hover{background:#f0f0ff}[data-theme=win98] .post-card-title{color:navy;font-family:MS Sans Serif,Arial,sans-serif;font-size:1rem;font-weight:700}[data-theme=win98] .post-card-desc{color:#000;font-family:MS Sans Serif,Arial,sans-serif;font-size:12px}[data-theme=win98] .post-card-meta{color:gray;font-family:MS Sans Serif,Arial,sans-serif;font-size:10px}[data-theme=win98] .prose{color:#000;font-family:MS Sans Serif,Segoe UI,Arial,sans-serif;font-size:13px;line-height:1.7}[data-theme=win98] .prose h1,[data-theme=win98] .prose h2,[data-theme=win98] .prose h3,[data-theme=win98] .prose h4{font-variant:normal;color:navy;letter-spacing:0;font-family:MS Sans Serif,Arial,sans-serif}[data-theme=win98] .prose h2{border-bottom:1px solid gray;padding-bottom:4px;font-size:1.1rem}[data-theme=win98] .prose h3{font-size:1rem}[data-theme=win98] .prose p{margin-bottom:.9em}[data-theme=win98] .prose a{color:#00c;text-decoration:underline}[data-theme=win98] .prose a:hover{color:navy}[data-theme=win98] .prose blockquote{color:#000;background:#f0f0f0;border-left:4px solid navy;margin:12px 0;padding:8px 14px;font-style:normal}[data-theme=win98] .prose code{background:#f0f0f0;border:1px solid gray;border-radius:0;padding:0 3px;font-family:Courier New,Courier,monospace;font-size:10px}[data-theme=win98] .prose pre{color:silver;background:#000;border-color:gray #dfdfdf #dfdfdf gray;border-style:solid;border-width:2px;border-radius:0;font-family:Courier New,Courier,monospace;font-size:10px}[data-theme=win98] .prose>p:first-of-type:first-line{font-variant:normal;font-size:inherit;letter-spacing:inherit}[data-theme=win98] .prose p:first-of-type:first-letter{color:inherit;float:none;font-family:inherit;font-size:inherit;line-height:inherit;margin:0;padding:0}[data-theme=win98] .sidenote.sidenote-fixed{font-size:inherit;background:0 0;border:none;width:auto;display:inline;position:static}[data-theme=win98] .sidenote{display:none}[data-theme=win98] .sidenote.open{color:#000;background:#f0f0f0;border-left:3px solid navy;width:auto;margin:6px 0;padding:4px 8px;font-size:11px;display:block;position:static}[data-theme=win98] .sidenote-connector{display:none}[data-theme=win98] button:not(.standalone-app *){color:#000;cursor:pointer;background:silver;border-color:#fff gray gray #fff;border-style:solid;border-width:2px;border-radius:0;padding:3px 10px;font-family:MS Sans Serif,Arial,sans-serif;font-size:11px;transition:none;box-shadow:inset 1px 1px #dfdfdf}[data-theme=win98] button:not(.standalone-app *):hover{color:#000;background:silver;border-color:#fff gray gray #fff}[data-theme=win98] button:not(.standalone-app *):active{box-shadow:none;border-color:gray #fff #fff gray;padding:4px 9px 2px 11px}[data-theme=win98] .corner-controls{top:22px;left:22px}[data-theme=win98] .corner-toggle{color:#000;background:silver;border-color:#fff gray gray #fff;border-style:solid;border-width:2px;border-radius:0;width:22px;height:22px;box-shadow:inset 1px 1px #dfdfdf}[data-theme=win98] .corner-toggle.open,[data-theme=win98] .corner-toggle:hover{color:navy;border-color:#fff gray gray #fff;box-shadow:inset 1px 1px #dfdfdf}[data-theme=win98] .corner-panel{background:silver;border-color:#dfdfdf #404040 #404040 #dfdfdf;border-style:solid;border-width:2px;border-radius:0;padding:8px;box-shadow:inset 1px 1px #fff,inset -1px -1px gray}[data-theme=win98] .theme-slider{box-shadow:none;background:#fff;border-color:gray #fff #fff gray;border-style:solid;border-width:2px;border-radius:0}[data-theme=win98] .theme-slider-thumb{background:navy;border:none;border-radius:0}[data-theme=win98] .theme-icon{color:#000}[data-theme=win98] .theme-icon:hover{color:navy}[data-theme=win98] .theme-icon.active{color:#fff}[data-theme=win98] .draft-toggle{font-size:10px;font-style:normal}[data-theme=win98] .draft-toggle,[data-theme=win98] .surprise-btn{color:#000;background:silver;border-color:#fff gray gray #fff;border-style:solid;border-width:2px;border-radius:0;font-family:MS Sans Serif,Arial,sans-serif}[data-theme=win98] .surprise-btn{font-size:11px}[data-theme=win98] .search-overlay{background:#00000080}[data-theme=win98] .search-panel{background:silver;border-color:#dfdfdf #404040 #404040 #dfdfdf;border-style:solid;border-width:2px;border-radius:0;box-shadow:inset 1px 1px #fff,inset -1px -1px gray,4px 4px #0000004d}[data-theme=win98] .search-input{color:#000;background:#fff;border:none;border-bottom:2px solid gray;font-family:MS Sans Serif,Arial,sans-serif;font-size:11px}[data-theme=win98] .search-input::placeholder{color:gray}[data-theme=win98] .search-result-title{color:#000;font-family:MS Sans Serif,Arial,sans-serif;font-size:11px;font-weight:700}[data-theme=win98] .search-result-desc,[data-theme=win98] .search-result-section{color:gray;font-family:MS Sans Serif,Arial,sans-serif;font-size:10px}[data-theme=win98] .search-result.active,[data-theme=win98] .search-result:hover{background:navy}[data-theme=win98] .search-result.active .search-result-desc,[data-theme=win98] .search-result.active .search-result-section,[data-theme=win98] .search-result.active .search-result-title,[data-theme=win98] .search-result:hover .search-result-desc,[data-theme=win98] .search-result:hover .search-result-section,[data-theme=win98] .search-result:hover .search-result-title{color:#fff}[data-theme=win98] .back-to-top{color:#000;background:silver;border-color:#fff gray gray #fff;border-style:solid;border-width:2px;border-radius:0;box-shadow:inset 1px 1px #dfdfdf}[data-theme=win98] .back-to-top:hover{color:navy;border-color:inherit;border-top-color:#fff;border-left-color:#fff}[data-theme=win98] .breadcrumb-current,[data-theme=win98] .breadcrumb-link,[data-theme=win98] .breadcrumb-sep{color:gray;font-family:MS Sans Serif,Arial,sans-serif;font-size:10px;font-style:normal}[data-theme=win98] .breadcrumb-link:hover{color:navy}[data-theme=win98] .copy-btn{color:#000;opacity:1;background:silver;border:1px solid gray;border-radius:0;font-family:MS Sans Serif,Arial,sans-serif;font-size:9px}[data-theme=win98] .post-nav-link{color:navy;font-family:MS Sans Serif,Arial,sans-serif;font-size:11px}[data-theme=win98] .post-nav-link:hover{color:#00c}[data-theme=win98] .post-nav-dir{font-variant:normal;color:gray;font-family:MS Sans Serif,Arial,sans-serif;font-size:9px}[data-theme=win98] .share-btn{color:#000;background:silver;border-color:#fff gray gray #fff;border-style:solid;border-width:2px;border-radius:0;font-family:MS Sans Serif,Arial,sans-serif;font-size:11px;font-style:normal}[data-theme=win98] .share-btn:hover{color:navy;border-color:inherit}[data-theme=win98] .tag-chip{color:navy;background:silver;border:1px solid gray;border-radius:0;padding:1px 6px;font-family:MS Sans Serif,Arial,sans-serif;font-size:10px}[data-theme=win98] .tag-chip:hover{color:#fff;background:navy;border-color:navy}[data-theme=win98] .reading-progress-bar{background:navy;height:3px}@media (max-width:768px){[data-theme=win98] body{background-color:silver}[data-theme=win98] .site-shell{height:100dvh;box-shadow:none;border:none;margin:0}}.draft-preview-banner{border:1px dashed var(--accent);color:var(--text);padding:.8rem}.post-card-update{color:var(--text-muted);margin:.75rem 0;font-size:.9rem}.music-controls,.practice-tools{flex-wrap:wrap;align-items:center;gap:.6rem;margin:1rem 0;font-size:.9rem;display:flex}.music-controls button,.music-controls input,.practice-tools button,.practice-tools select{border:1px solid var(--border-hi);background:var(--bg);min-height:44px;color:var(--text);font:inherit;border-radius:4px;padding:.4rem .7rem}.music-controls input{width:5.5rem}.music-controls button:disabled{opacity:.5;cursor:wait}.sheet-music-zoom{width:var(--practice-zoom,100%)}.fifths-scroll{overflow-x:auto}.fifths-circle{width:var(--practice-zoom,100%);max-width:none}[data-practice] .back-to-top,[data-practice] .corner-controls,[data-practice] .mobile-header,[data-practice] .post-nav,[data-practice] .related-posts,[data-practice] .sidebar,[data-practice] .toc{display:none!important}[data-practice] .site-shell{width:100%;max-width:1100px;display:block}[data-practice] .page-wrap{max-width:none}[data-practice] .practice-tools{z-index:40;background:var(--bg);border-bottom:1px solid var(--border-hi);padding:.75rem;position:sticky;top:0}@media print{:root{--bg:white!important;--text:black!important;--text-muted:#333!important;--text-dim:#555!important;--accent:black!important;--practice-zoom:100%!important}.main-content,.page-wrap,.site-shell,body,html{color:#000!important;width:auto!important;max-width:none!important;height:auto!important;box-shadow:none!important;background:#fff!important;margin:0!important;padding:0!important;display:block!important;overflow:visible!important}.back-to-top,.corner-controls,.heading-anchor,.mobile-header,.music-controls,.post-nav,.practice-tools,.project-heading-nav,.project-jump,.reading-progress,.reading-progress-bar,.related-posts,.share-btn,.sheet-music details,.sidebar,.toc,nextjs-portal{display:none!important}.prose-figure,.sheet-music,.violin-fifths{break-inside:avoid}.prose{--practice-zoom:100%!important}.fifths-scroll,.sheet-music-scroll{overflow:visible}.sheet-music-score{min-width:0}.prose-figure{float:none!important;width:70%!important;margin:1rem auto!important}.prose-figure img{object-fit:contain;max-height:19cm}.fifths-circle{max-width:12cm}.violin-fifths input[type=range]{display:none}.prose a{color:#000!important}}.standalone-app{background:#edf0f2;width:100%;height:100dvh;overflow:auto}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-ordinal{syntax:"*";inherits:false}@property --tw-slashed-zero{syntax:"*";inherits:false}@property --tw-numeric-figure{syntax:"*";inherits:false}@property --tw-numeric-spacing{syntax:"*";inherits:false}@property --tw-numeric-fraction{syntax:"*";inherits:false}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}