:root{--bg-app:#050510;--bg-panel:#0d0d1f;--bg-input:#111827;--bg-card:#0a0b1e;--text-main:#fff;--text-dim:#88a;--text-muted:#666;--text-primary:#fafafa;--text-secondary:#a1a1aa;--border-subtle:#ffffff12;--border-focus:#22d3ee80;--cyan:#22d3ee;--purple:#a855f7;--accent:var(--calc-color-math);--accent-glow:#22d3ee26;--primary:#22d3ee;--success:#10b981;--warn:#f59e0b;--danger:#ef4444}*,:before,:after{box-sizing:border-box}body{background-color:var(--bg-app);color:var(--calc-text-primary);margin:0;padding:0;font-family:Inter,sans-serif;line-height:1.6}.main-container{max-width:1200px;margin:0 auto;padding:0 20px 24px}.calc-breadcrumb{color:var(--calc-text-muted);padding:10px 20px;font-size:.85rem}.calc-breadcrumb a{color:var(--calc-text-dim);text-decoration:none}.calc-breadcrumb a:hover{color:var(--calc-cyan)}.calc-title{text-align:center;letter-spacing:-.02em;color:var(--calc-text-primary);margin:10px 0 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16px 14px;font-size:.9rem;line-height:1.6;display:none}.faq-item.open .faq-a{display:block}@media (width<=768px){.main-container{padding:0 12px 20px}.stat-grid{grid-template-columns:repeat(3,1fr);gap:8px}.stat-card{padding:10px 6px}.stat-card .s-value{font-size:.82rem}.speed-milestone .ms-label{display:none}.conv-matrix{font-size:.72rem}.conv-matrix td,.conv-matrix th{padding:5px 6px}}@media (width<=480px){.stat-grid{grid-template-columns:repeat(2,1fr)}.formula-pills2{flex-direction:column}}[data-theme=light]{--bg-app:#e8edf5;--bg-panel:#fff;--bg-input:#f0f4f9;--bg-card:#fff;--text-main:#0f172a;--text-primary:#0f172a;--text-dim:#334155;--text-secondary:#334155;--text-muted:#64748b;--border-subtle:#0000001f;--border-focus:#0891b299;--cyan:#0891b2;--purple:#7c3aed;--accent:var(--calc-color-math);--accent-glow:#0891b226;--primary:#0891b2}[data-theme=light] body{color:#0f172a;background-color:#e8edf5}[data-theme=light] .calc-breadcrumb a{color:#334155}[data-theme=light] .calc-breadcrumb 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td:hover{color:#0f172a;background:#f0f4f9}[data-theme=light] .conv-matrix td.self{color:#94a3b8;background:#f8fafc}[data-theme=light] .conv-matrix td.highlighted{color:#0891b2;background:#0891b21a;box-shadow:inset 0 0 0 1px #0891b259}[data-theme=light] .ref-card-v{background:#0891b20f;border-color:#0891b22e}[data-theme=light] .ref-card-v .ref-label{color:#64748b}[data-theme=light] .ref-card-v .ref-val{color:#0891b2}[data-theme=light] .conv-table th{color:#0891b2;background:#0891b217;border-color:#0891b233}[data-theme=light] .conv-table td{color:#334155;border-color:#0000000f}[data-theme=light] .conv-table tr:hover td{color:#0f172a;background:#f0f4f9}[data-theme=light] .u-title{color:#0f172a;border-color:#0000001a}[data-theme=light] .ob-card{background:#0891b20f;border-color:#0891b22e}[data-theme=light] .ob-num{color:#0891b2}[data-theme=light] .ob-card h3{color:#0f172a}[data-theme=light] .ob-card p{color:#334155}[data-theme=light] .glossary-chip{background:#f0f4f9;border-color:#0000001a}[data-theme=light] .glossary-chip dt{color:#0891b2}[data-theme=light] .glossary-chip dd{color:#475569}[data-theme=light] .rel-card2{color:#475569;background:#fff;border-color:#0000001f}[data-theme=light] .rel-card2:hover{color:#0891b2;background:#f0f4f9;border-color:#0891b24d}[data-theme=light] .article-body2{color:#475569}[data-theme=light] .article-body2 h3{color:#0f172a}[data-theme=light] .article-body2 p{color:#475569}[data-theme=light] .faq-section-extra .faq-item-enhanced{background:#fff;border-color:#0000001a}[data-theme=light] .faq-section-extra .faq-q{color:#0f172a}[data-theme=light] .faq-section-extra .faq-q:after,[data-theme=light] .faq-section-extra .faq-item.open .faq-q:after{color:#0891b2}[data-theme=light] .faq-section-extra .faq-a{color:#475569}[data-theme=light] .faq-item-enhanced{background:#fff;border-color:#0000001a}[data-theme=light] .faq-q{color:#0f172a}[data-theme=light] .faq-q:after{color:#0891b2}[data-theme=light] .faq-a{color:#475569}[data-theme=light] .toast-success,[data-theme=light] .toast-warn{color:#fff;background:#0891b2}[data-theme=light] .toast-error{color:#fff;background:#b91c1c}[data-theme=light] .formula-box{background:#f0f4f9;border-color:#0000001a}[data-theme=light] .formula-box .f-title{color:#475569}[data-theme=light] .formula-box .f-eq{color:#0891b2}