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#1f77b440}.material-section{background-color:var(--hover-bg);padding:20px;border-radius:8px;border:1px solid var(--border-color)}.material-url-section{background-color:#fff3cd;border-color:#ffc107}.data-source-toggle{display:flex;align-items:center;gap:16px;margin-bottom:24px;padding:16px;background-color:var(--hover-bg);border-radius:8px;flex-wrap:wrap;border:1px solid var(--border-color)}.toggle-label{font-weight:600;color:var(--text-primary);font-size:14px}.toggle-buttons{display:flex;gap:8px}.toggle-button{padding:6px 16px;border:1px solid var(--border-color);border-radius:6px;background-color:#fff;cursor:pointer;font-size:14px;transition:all 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