:root{--transition: .25s cubic-bezier(.4,0,.2,1)}[data-theme=dark]{--bg-base: #0f1117;--bg-surface: #16191f;--bg-elevated: #1e2128;--bg-hover: #252930;--border: #2a2d35;--border-subtle: #1e2128;--text-primary: #f0f2f7;--text-secondary: #8b8f9a;--text-muted: #4a4e5a;--accent: #3b82f6;--accent-glow: rgba(59,130,246,.15);--accent-hover: #2563eb;--msg-user-bg: #1d4ed8;--msg-user-text: #ffffff;--msg-ai-bg: #1e2128;--msg-ai-text: #e8eaf0;--msg-ai-border: #2a2d35;--input-bg: #1e2128;--input-border: #2a2d35;--input-focus: #3b82f6;--danger: #ef4444;--success: #22c55e;--scrollbar: #2a2d35;--table-header: #1a1d24;--table-row-alt: #191c22;--sidebar-bg: #13151a;--sidebar-text: #8b8f9a}[data-theme=light]{--bg-base: #f5f7fa;--bg-surface: #ffffff;--bg-elevated: #f0f2f7;--bg-hover: #e8ecf4;--border: #e2e5ed;--border-subtle: #f0f2f7;--text-primary: #111318;--text-secondary: #5a5f6e;--text-muted: #9ca3af;--accent: #2563eb;--accent-glow: rgba(37,99,235,.08);--accent-hover: #1d4ed8;--msg-user-bg: #2563eb;--msg-user-text: #ffffff;--msg-ai-bg: #f8f9fc;--msg-ai-text: #111318;--msg-ai-border: #e2e5ed;--input-bg: #ffffff;--input-border: #d1d5db;--input-focus: #2563eb;--danger: #dc2626;--success: #16a34a;--scrollbar: #d1d5db;--table-header: #f4f5f8;--table-row-alt: #f8f9fc;--sidebar-bg: #ffffff;--sidebar-text: #4b5563}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Inter,Segoe UI,sans-serif;background:var(--bg-base);color:var(--text-primary);height:100vh;overflow:hidden;transition:background var(--transition),color var(--transition)}#root{height:100vh;display:flex;flex-direction:column}::-webkit-scrollbar{width:4px;height:4px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--scrollbar);border-radius:10px}.md-content p{margin-bottom:8px;line-height:1.6}.md-content h1,.md-content h2,.md-content h3{margin:14px 0 6px;font-weight:700}.md-content ul,.md-content ol{padding-left:18px;margin-bottom:8px}.md-content li{margin-bottom:3px;line-height:1.5}.md-content code{background:var(--bg-elevated);padding:1px 5px;border-radius:4px;font-size:12px;font-family:SF Mono,monospace}.md-content pre{background:var(--bg-base);border:1px solid var(--border);border-radius:8px;padding:12px;overflow-x:auto;margin:8px 0}.md-content pre code{background:none;padding:0}.md-content strong{font-weight:700;color:#fff}.md-content a{color:var(--accent);text-decoration:none}.md-content a:hover{text-decoration:underline}.md-content img{display:block;width:auto;max-width:min(100%,280px);max-height:520px;height:auto;object-fit:contain;margin:12px auto 4px;border-radius:12px;border:1px solid var(--border);background:var(--bg-base)}.md-content table{border-collapse:collapse;width:100%;margin:8px 0;font-size:13px}.md-content th{background:var(--table-header);padding:6px 10px;border:1px solid var(--border);text-align:left}.md-content td{padding:6px 10px;border:1px solid var(--border-subtle)}@keyframes spin{to{transform:rotate(360deg)}}