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0}.about-section>h2{font-family:Merriweather,Georgia,serif;font-size:1.6rem;color:#2c3e50;margin-bottom:.75rem;padding-bottom:.5rem;position:relative}.about-section>h2:after{content:"";position:absolute;left:0;bottom:0;width:48px;height:3px;border-radius:2px;background:#3498db}.about-section>p{font-size:1.05rem;line-height:1.75;color:#444;margin:0}.about-section code{background:#eef3f8;color:#2c3e50;padding:.1rem .35rem;border-radius:4px;font-size:.85em}.about-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1.25rem;margin-top:1.25rem}.about-card{background:#fff;border-radius:10px;padding:1.5rem;box-shadow:0 2px 10px #0000000f;border-top:3px solid #3498db;transition:transform .2s,box-shadow .2s}.about-card:hover{transform:translateY(-3px);box-shadow:0 6px 18px #0000001a}.about-card h3{font-size:1.15rem;color:#2c3e50;margin:0 0 .5rem}.about-card 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li:before{content:counter(about-step);position:absolute;left:0;top:.5rem;width:1.8rem;height:1.8rem;display:flex;align-items:center;justify-content:center;background:#3498db;color:#fff;border-radius:50%;font-size:.9rem;font-weight:700}.about-cta-section{margin:3rem 0 1rem;text-align:center}.about-open-tree-btn{display:inline-block;background:#2c3e50;color:#fff;text-decoration:none;padding:16px 40px;border-radius:8px;font-size:1.1rem;font-weight:600;box-shadow:0 4px 14px #2c3e5040;transition:background .15s ease,transform .05s ease}.about-open-tree-btn:hover{background:#1a2937}.about-open-tree-btn:active{transform:translateY(1px)}@media(max-width:768px){.about-open-tree-btn{width:100%;padding:18px 24px}}.narrative-reading{max-width:800px;margin:0 auto;background:#fff;padding:3rem;border-radius:8px;box-shadow:0 2px 8px #0000001a}.narrative-header h1{font-size:2rem;color:#2c3e50;margin-bottom:.5rem}.prerequisites{color:#666;font-style:italic;margin-bottom:2rem}.narrative-text{line-height:1.8;font-size:1.1rem;margin-bottom:3rem}.narrative-text p{margin-bottom:1.5rem}.key-concepts{background:#f8f9fa;padding:2rem;border-radius:8px;margin-bottom:2rem}.key-concepts h2{font-size:1.5rem;color:#2c3e50;margin-bottom:.5rem}.concepts-note{color:#666;font-size:.9rem;font-style:italic;margin-bottom:1rem}.key-concepts ol{padding-left:1.5rem}.key-concepts li{margin-bottom:.75rem;color:#555}.quiz-button{background:#27ae60;color:#fff;border:none;padding:1rem 2rem;font-size:1.1rem;border-radius:8px;cursor:pointer;width:100%;transition:background .3s}.quiz-button:hover{background:#229954}.why-panel-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#0000004d;z-index:500;opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease}.why-panel-overlay.visible{opacity:1;visibility:visible}.why-panel{position:fixed;top:0;right:0;width:480px;height:100vh;background:#fff;box-shadow:-4px 0 20px #00000026;z-index:600;transform:translate(100%);transition:transform .3s cubic-bezier(.4,0,.2,1);display:flex;flex-direction:column}.why-panel.open{transform:translate(0)}.why-panel-minimize{position:absolute;left:-40px;top:50%;transform:translateY(-50%);width:40px;height:100px;background:#3498db;border:none;border-radius:8px 0 0 8px;cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;color:#fff;transition:filter .2s}.why-panel-minimize:hover{filter:brightness(1.1)}.why-panel-minimize .minimize-icon{font-size:16px}.why-panel-minimize .minimize-text{writing-mode:vertical-rl;text-orientation:mixed;font-size:11px;font-weight:600;letter-spacing:.5px}.why-panel-content{flex:1;overflow-y:auto;display:flex;flex-direction:column}.why-panel-header{padding:24px;border-bottom:3px solid #3498db;display:flex;justify-content:space-between;align-items:flex-start;gap:16px;background:#fafafa}.why-panel-title{flex:1}.why-label{font-size:12px;font-weight:600;color:#888;text-transform:uppercase;letter-spacing:.5px;display:block;margin-bottom:4px}.why-panel-title h2{margin:0;font-size:1.4rem;color:#2c3e50;line-height:1.3}.why-breadth-badge{padding:6px 12px;border-radius:4px;color:#fff;font-size:12px;font-weight:600;white-space:nowrap}.why-panel-explanation{padding:16px 24px;font-size:13px;color:#555;line-height:1.5;background:#fff;border-bottom:1px solid #eee}.why-formula{margin-top:10px;padding:8px 12px;background:#f0f4f8;border-radius:4px;font-family:monospace;font-size:12px;color:#666}.why-reasoning{margin:16px 24px 0;padding:12px 14px;background:#f8f8f8;border-left:3px solid #ccc;border-radius:4px;font-size:14px;line-height:1.55;color:#444}.why-region-scope{margin:6px 0 0;font-size:13px;color:#666;line-height:1.45}.why-panel-candidates{flex:1;padding:16px 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#3498db;font-size:12px;line-height:1.5}.why-justification{margin-bottom:8px;color:#444}.why-justification:last-child{margin-bottom:0}.why-justification strong{color:#2c3e50}.why-justification.why-no-data{color:#888;font-style:italic}.why-col-rank{width:28px;font-size:12px;color:#888;font-weight:600}.why-col-title{flex:1;font-size:13px;color:#2c3e50;padding-right:12px}.why-col-score{width:50px;text-align:center;font-size:12px;color:#666}.why-total{font-weight:700;color:#2c3e50}.why-panel-footer{padding:16px 24px;border-top:1px solid #eee;display:flex;justify-content:space-between;align-items:center;font-size:13px;font-weight:600;background:#fafafa}.why-footer-note{color:#888;font-weight:400}.why-schemes-intro{padding:12px 16px;background:#f8f8f8;border-bottom:1px solid #eee;font-size:14px;color:#2c3e50}.why-scheme-wrapper{border-bottom:1px solid #eee}.why-scheme-wrapper:last-child{border-bottom:none}.why-scheme-row{padding:12px 16px;background:#fafafa;border-left:4px solid 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.why-scheme-anchor{background:#27ae6033;color:#1e7e34}.why-scheme-details{padding:12px 16px 12px 48px;background:#f8fafc;border-left:4px solid #27ae60;font-size:12px;line-height:1.5}.why-rating{margin-bottom:8px;color:#444}.why-rating:last-child{margin-bottom:0}.why-rating strong{color:#2c3e50}.narrative-page{min-height:100vh;background:#fdfcfa;padding-bottom:80px}.narrative-back-bar{max-width:800px;margin:0 auto;padding:20px 24px 0}.back-to-tree-pill{display:inline-flex;align-items:center;background:#2c3e50;color:#fff;text-decoration:none;padding:10px 18px;border-radius:999px;font-family:Source Sans Pro,-apple-system,sans-serif;font-size:14px;font-weight:600;box-shadow:0 2px 8px #2c3e502e;transition:background .15s ease,transform .05s ease;min-height:40px}.back-to-tree-pill:hover{background:#1a2937}.back-to-tree-pill:active{transform:translateY(1px)}@media(max-width:768px){.narrative-back-bar{padding:16px 20px 0}}.narrative-breadcrumbs{max-width:800px;margin:0 auto;padding:12px 24px 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#c4a35a;font-style:italic;color:#444}.narrative-text blockquote cite{display:block;margin-top:1em;font-style:normal;font-size:.9em;color:#666}.footnote-ref{color:#2563eb;text-decoration:none;font-size:.8em;font-weight:700;font-family:Source Sans Pro,-apple-system,sans-serif;padding:0 1px;transition:color .15s}.footnote-ref:hover{color:#2a5a8c}.footnotes-list{max-width:680px;margin:0 auto;padding:24px 24px 0;border-top:1px solid #e5e5e5;font-family:Source Sans Pro,-apple-system,sans-serif;font-size:.85rem;color:#666;line-height:1.6}.footnotes-list li{margin-bottom:6px;padding-left:4px}.footnotes-list a{color:#555;text-decoration:none;border-bottom:1px dotted #aaa;transition:color .15s,border-color .15s}.footnotes-list a:hover{color:#2a5a8c;border-bottom-color:#2a5a8c}.sub-anchor-link{font-weight:700;text-decoration:none;padding:2px 7px;border-radius:4px;border:1px solid;transition:background .15s,border-color .15s}.sub-anchor-link-analytical{color:#2a5a8c;background:#e8f0fa;border-color:#c4d7ed}.sub-anchor-link-analytical:hover{background:#d6e5f5;border-color:#a8c4de}.sub-anchor-link-temporal{color:#2d6a4f;background:#e4f5ec;border-color:#b7dfc8}.sub-anchor-link-temporal:hover{background:#d0eddb;border-color:#96cead}.fact-check-badge{display:inline-block;font-family:Source Sans Pro,-apple-system,sans-serif;font-size:12px;font-weight:700;color:#27ae60;background:#e8f8e8;padding:4px 12px;border-radius:12px;margin-bottom:16px}.fact-check-section{max-width:680px;margin:0 auto 32px;text-align:center}.fact-check-button{font-family:Source Sans Pro,-apple-system,sans-serif;font-size:14px;font-weight:600;color:#2c3e50;background:#fff;border:1px solid #2c3e50;border-radius:6px;padding:10px 24px;cursor:pointer;transition:all .15s}.fact-check-button:hover:not(:disabled){background:#2c3e50;color:#fff}.fact-check-button:disabled{opacity:.7;cursor:default;border-color:#888;color:#888}.fact-check-error{color:#dc3545;font-size:14px;margin-top:8px}.factcheck-status{max-width:680px;margin:0 auto 24px;padding:8px 16px;font-size:13px;color:#888;font-style:italic;text-align:center}.sources-section{max-width:680px;margin:0 auto 48px;border:1px solid #e5e2d9;border-radius:8px;overflow:hidden}.sources-heading{font-family:Source Sans Pro,-apple-system,sans-serif;font-size:15px;font-weight:700;color:#2c3e50;padding:16px 24px;cursor:pointer;background:#f8f7f5;-webkit-user-select:none;user-select:none}.sources-heading:hover{background:#f0efe9}.sources-list{margin:0;padding:16px 24px 16px 40px;list-style-type:decimal}.source-item{margin-bottom:12px;font-family:Source Sans 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