:root{--bg: #f5f6f8;--surface: #ffffff;--surface-2: #f2f4f7;--surface-3: #e9edf3;--border: #e4e7ec;--text: #111827;--text-muted: #6b7280;--primary: #2563eb;--primary-strong: #1d4ed8;--primary-weak: #eff4ff;--on-primary: #ffffff;--danger: #dc2626;--danger-weak: #fef2f2;--warn: #b45309;--warn-weak: #fffbeb;--success: #047857;--radius: 12px;--radius-sm: 8px;--shadow-sm: 0 1px 2px rgba(16, 24, 40, .06);--shadow: 0 4px 16px rgba(16, 24, 40, .08);--sidebar-w: 280px;--font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", sans-serif;--font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Courier New", monospace;color-scheme:light}@media(prefers-color-scheme:dark){:root{--bg: #0b0f19;--surface: #121826;--surface-2: #182033;--surface-3: #1f2940;--border: #26314a;--text: #e6eaf2;--text-muted: #94a3b8;--primary: #3b82f6;--primary-strong: #60a5fa;--primary-weak: #16233c;--on-primary: #ffffff;--danger: #f87171;--danger-weak: #2a1618;--warn: 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