:root{--bg-dark:#050510;--bg-panel:#0d0d1f;--bg-input:#1a1a2e;--text-main:#fff;--text-dim:#88a;--text-muted:#666;--cyan:#22d3ee;--purple:#a855f7;--border:#ffffff14;--border-focus:#22d3ee;--success:#10b981;--danger:#ef4444;--warn:#f59e0b;--accent:var(--calc-color-math);--font-mono:"JetBrains Mono", "Courier New", monospace}[data-theme=light]{--bg-dark:#e8edf5;--bg-panel:#fff;--bg-input:#edf2f9;--text-main:#0f172a;--text-dim:#334155;--text-muted:#64748b;--cyan:#0891b2;--purple:#7c3aed;--border:#0000001f;--border-focus:#0891b2;--success:#065f46;--danger:#dc2626;--warn:#0891b2;--accent:var(--calc-color-math)}*,:before,:after{box-sizing:border-box}body{background:var(--calc-bg-page);color:var(--calc-text-primary);margin:0;padding:0;font-family:Inter,sans-serif;line-height:1.6}.main-container{max-width:1300px;margin:0 auto;padding:0 1.5rem 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3rem}.calc-section{margin-top:3rem}.calc-section__title{color:var(--calc-text-primary);margin:0 0 1rem;font-size:1.35rem;font-weight:800}.ob-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem;margin-top:1rem;display:grid}.ob-card{background:#22d3ee0d;border:1px solid #22d3ee26;border-radius:12px;padding:1.4rem}.ob-num{color:#22d3ee4d;margin-bottom:.5rem;font-size:2rem;font-weight:800;line-height:1}.ob-card h3{color:var(--calc-cyan);margin:0 0 .4rem;font-size:1rem}.ob-card p{color:var(--calc-text-dim);margin:0;font-size:.9rem;line-height:1.5}[data-theme=light] .ob-card{background:#f0f9fb;border-color:#0891b233}[data-theme=light] .ob-card h3{color:var(--calc-cyan)}.fp2{background:#a855f714;border:1px solid #a855f740;border-radius:10px;flex-direction:column;flex:180px;gap:5px;min-width:160px;padding:13px 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