:root{--bg-primary: #f1f5f9;--bg-secondary: #ffffff;--bg-card: #ffffff;--bg-card-hover: #f8fafc;--bg-input: #ffffff;--bg-sidebar: #ffffff;--text-primary: #0f172a;--text-secondary: #475569;--text-muted: #94a3b8;--accent-primary: #0e7490;--accent-secondary: #155e75;--accent-gradient: #0e7490;--accent-soft: rgba(14, 116, 144, .08);--success: #15803d;--warning: #b45309;--danger: #be123c;--info: #94a3b8;--border: #d8dee7;--border-light: #e6ebf2;--border-hover: #b6c0cc;--ink: #1e293b;--ink-soft: #334155;--diagram-blue: #409eff;--shadow-sm: 0 1px 2px rgba(15, 23, 42, .04);--shadow-md: 0 2px 4px rgba(15, 23, 42, .06);--shadow-lg: 0 8px 16px rgba(15, 23, 42, .08);--shadow-glow: 0 2px 12px 0 rgba(15, 23, 42, .08);--radius-sm: 3px;--radius-md: 4px;--radius-lg: 6px;--sidebar-width: 244px;--transition: all .18s cubic-bezier(.4, 0, .2, 1);--font-display: "Archivo Narrow", "Noto Sans TC", sans-serif;--font-sans: "Public Sans", "Noto Sans TC", -apple-system, BlinkMacSystemFont, sans-serif;--font-mono: 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