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var(--gray-200);border-radius:var(--border-radius-lg);background:#fff;box-shadow:0 4px 16px #00000014;overflow:hidden}.formula-picker-header{display:flex;justify-content:space-between;align-items:center;padding:10px 16px;background:var(--gray-50);border-bottom:1px solid var(--gray-100)}.formula-tabs{display:flex;flex-wrap:wrap;gap:2px;padding:8px 12px;border-bottom:1px solid var(--gray-100);background:var(--gray-50)}.formula-tabs button{background:none;border:1px solid transparent;border-radius:6px;padding:4px 10px;font-size:.75rem;cursor:pointer;color:var(--gray-500);transition:all .15s;white-space:nowrap}.formula-tabs button:hover{background:var(--bee-yellow-50);color:var(--gray-700)}.formula-tabs button.active{background:var(--bee-yellow);color:#000;font-weight:600;border-color:var(--bee-amber-dark)}.formula-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:6px;padding:12px;max-height:260px;overflow-y:auto}.formula-btn{display:flex;flex-direction:column;align-items:center;gap:4px;padding:10px 6px;border:1px solid var(--gray-150, #e8e8e8);border-radius:8px;background:#fafafa;cursor:pointer;transition:all .15s;min-height:60px;justify-content:center}.formula-btn:hover{background:var(--bee-yellow-50);border-color:var(--bee-yellow);transform:translateY(-1px);box-shadow:0 2px 8px #0000000f}.formula-preview{font-size:1rem;line-height:1.2;color:var(--gray-800)}.formula-preview .katex{font-size:.9rem!important}.formula-label{font-size:.625rem;color:var(--gray-400);text-align:center;line-height:1.2}.formula-custom{display:flex;gap:8px;padding:10px 12px;border-top:1px solid var(--gray-100);background:var(--gray-50);align-items:center}.seo-indicator{display:flex;align-items:center;gap:8px;margin-top:4px}.seo-bar{flex:1;height:4px;background:var(--gray-100);border-radius:2px;overflow:hidden}.seo-bar-fill{height:100%;background:#22c55e;border-radius:2px;transition:width .2s,background .2s}.seo-bar-fill.warn{background:#f59e0b}.seo-bar-fill.over{background:#ef4444}
