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8px rgba(102,126,234,.3);color:#fff;display:flex;font-size:.875rem;font-weight:500;padding:.5rem 1rem}.comparison-note{background:linear-gradient(135deg,rgba(102,126,234,.1),rgba(118,75,162,.1));border-left:4px solid var(--accent-primary);border-radius:8px;margin-top:1.5rem;padding:1rem}.comparison-note p{color:var(--text-secondary);line-height:1.5;margin:0}.data-summary{grid-gap:1rem;background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:12px;display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));margin-bottom:1.5rem;padding:1.5rem}.summary-item{background:var(--bg-card);border:1px solid var(--border-color);border-radius:8px;display:flex;flex-direction:column;gap:.25rem;padding:.75rem;transition:all .2s ease}.summary-item:hover{border-color:var(--accent-primary);box-shadow:var(--shadow-sm)}.comparison-stats-section{animation:slideIn .6s ease-out;margin:2rem 0}.comparison-stats-container{background:var(--bg-card);border:1px solid 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h2{align-items:center;color:var(--primary-color);display:flex;font-size:1.8rem;font-weight:700;gap:.5rem;margin-bottom:1.5rem;margin-top:0}.help-card{background:var(--card-bg);border:1px solid var(--border-color);border-radius:6px;box-shadow:0 1px 3px rgba(0,0,0,.1);margin-bottom:1.5rem;padding:1.5rem;transition:all .3s ease}.help-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}.help-card h3{color:var(--primary-color);font-size:1.3rem;font-weight:600;margin-top:0}.help-card p{color:var(--text-secondary);line-height:1.6;margin:0}.models-grid{grid-gap:1.5rem;display:grid;gap:1.5rem;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));margin:2rem 0}.model-card{background:var(--card-bg);border:1px solid var(--border-color);border-radius:8px;display:flex;flex-direction:column;height:100%;overflow:hidden;transition:transform .2s,box-shadow .2s}.model-card-link{color:inherit;display:block;height:100%;text-decoration:none}.model-card:hover{box-shadow:0 8px 20px 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strong{color:var(--heading-color)}.learn-more{align-items:center;color:var(--primary-color);display:flex;font-weight:500;gap:.3rem;margin-top:auto;padding-top:1rem;transition:color .2s}.model-card:hover .learn-more{color:var(--primary-dark)}.guide-steps{display:flex;flex-direction:column;gap:1.5rem;margin-bottom:2rem}.step-card{align-items:flex-start;background:var(--bg-card);border:1px solid var(--border-color);border-radius:12px;box-shadow:var(--shadow-md);display:flex;gap:1rem;padding:1.5rem;transition:all .3s ease}.step-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}.step-number{align-items:center;background:var(--gradient-primary);border-radius:50%;color:#fff;display:flex;flex-shrink:0;font-size:1.1rem;font-weight:700;height:2.5rem;justify-content:center;width:2.5rem}.step-content h4{color:var(--text-primary);font-size:1.1rem;font-weight:600;margin-bottom:.5rem}.step-content p{color:var(--text-secondary);line-height:1.6;margin:0}.tips-section{background:var(--bg-card);border:1px solid var(--border-color);border-radius:12px;box-shadow:var(--shadow-md);padding:1.5rem}.tips-section h4{color:var(--text-primary);font-size:1.2rem;font-weight:600;margin-bottom:1rem}.tips-list{list-style:none;margin:0;padding:0}.tips-list li{color:var(--text-secondary);line-height:1.6;margin-bottom:.8rem;padding-left:1.5rem;position:relative}.tips-list li:before{content:"💡";left:0;position:absolute;top:0}.tips-list li:last-child{margin-bottom:0}.faq-list{display:flex;flex-direction:column;gap:1.5rem}.faq-item{background:var(--bg-card);border:1px solid var(--border-color);border-radius:12px;box-shadow:var(--shadow-md);padding:1.5rem;transition:all .3s ease}.faq-item:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}.faq-item h4{color:var(--text-primary);font-size:1.1rem;font-weight:600;margin-bottom:.8rem}.faq-item p{color:var(--text-secondary);line-height:1.6;margin:0}.support-info{background:var(--bg-card);border:1px solid var(--border-color);border-radius:12px;box-shadow:var(--shadow-md);padding:1.5rem}.support-info p{color:var(--text-secondary);line-height:1.6;margin-bottom:1rem}.version-info{border-top:1px solid var(--border-color);color:var(--text-muted);font-size:.9rem;padding-top:1rem}.version-info strong{color:var(--text-primary)}.help-footer{border-top:2px solid var(--border-color);margin-top:3rem;padding-top:2rem}.quick-links h4{color:var(--text-primary);font-size:1.2rem;font-weight:600;margin-bottom:1.5rem;text-align:center}.link-grid{display:flex;flex-wrap:wrap;gap:2rem;justify-content:center}.quick-link{align-items:center;background:var(--bg-card);border:1px solid var(--border-color);border-radius:8px;color:var(--text-primary);display:inline-flex;font-weight:500;gap:.5rem;padding:.8rem 1.5rem;text-decoration:none;transition:all .3s 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code{background:none;color:var(--code-color);padding:0}.formula-description{color:var(--text-secondary);font-style:italic;margin-top:10px}.parameter-table{margin:20px 0;overflow-x:auto}.parameter-table table{background:var(--table-background);border-collapse:collapse;border-radius:8px;box-shadow:0 2px 8px rgba(0,0,0,.1);overflow:hidden;width:100%}.parameter-table td,.parameter-table th{border-bottom:1px solid var(--border-color);padding:12px 15px;text-align:left}.parameter-table th{background:var(--table-header-background);color:var(--heading-color);font-weight:600}.parameter-table tr:hover{background:var(--table-row-hover)}.applications-grid{grid-gap:20px;display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));margin:20px 0}.application-card{background:var(--card-background);border:1px solid var(--border-color);border-radius:8px;padding:20px;transition:transform .3s ease,box-shadow .3s ease}.application-card:hover{box-shadow:0 4px 12px 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