@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";*,:before,:after{box-sizing:border-box}html{scroll-behavior:smooth}body{min-height:100vh;margin:0;font-family:Inter,Segoe UI,system-ui,sans-serif}#root{height:100vh}:root{--primary:#2755f3;--primary-dark:#192e84;--primary-light:#e9eefe;--accent-cyan:#89bcff;--accent-blue:#a2e6f9;--bg-body:#fff;--bg-chat:#f5f8ff;--bg-header:#fafaff;--bg-card:#fff;--border:#e0e5f5;--border-light:#eef1fb;--text-primary:#0d1b4b;--text-body:#213547;--text-muted:#6b7aaa;--text-light:#9aa3c2;--bot-bubble-bg:#fff;--user-bubble-bg:#2755f3;--user-bubble-text:#fff;--btn-outline-border:#2755f3;--btn-outline-text:#2755f3;--btn-outline-hover:#e9eefe;--shadow-sm:0 1px 4px #2755f312;--shadow-md:0 4px 20px #2755f31f;--shadow-lg:0 8px 40px #2755f329;--radius-sm:6px;--radius-md:12px;--radius-lg:20px;--radius-pill:50px;--radius-full:9999px;--header-h:48px;--font:"Inter", "Segoe UI", system-ui, 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.12s;display:inline-flex}.attach-download-btn:hover{background:#dce4fc}.attach-waiting-banner{background:var(--primary-light);border-radius:var(--radius-sm);color:var(--primary);border:1px solid #2755f340;align-items:center;gap:10px;padding:12px 16px;font-size:13px;font-weight:500;display:flex}.attach-hint{color:var(--text-light);margin-top:6px;font-size:11px}.canvas-default{text-align:center;height:100%;color:var(--text-muted);flex-direction:column;justify-content:center;align-items:center;padding:40px;animation:.4s fadeSlideIn;display:flex}.canvas-default-icon-wrap{border:1.5px dashed var(--border);border-radius:var(--radius-lg);width:80px;height:80px;color:var(--border);background:#f5f7ff;justify-content:center;align-items:center;margin-bottom:20px;display:flex}.canvas-default h3{color:var(--text-body);margin-bottom:8px;font-size:17px;font-weight:600}.canvas-default p{max-width:320px;color:var(--text-muted);font-size:13px;line-height:1.55}