:root{--color-primary:#4f46e5;--color-primary-hover:#4338ca;--color-primary-light:#eef2ff;--color-secondary:#7c3aed;--color-surface:#fff;--color-background:#f4f4f5;--color-border:#e4e4e7;--color-text-primary:#18181b;--color-text-muted:#71717a;--color-success:#16a34a;--color-warning:#d97706;--color-danger:#dc2626;--color-info:#2563eb;--sidebar-width:240px;--sidebar-collapsed-width:64px;--topbar-height:56px;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--shadow-card:0 1px 3px rgba(0,0,0,.08);--shadow-modal:0 8px 32px rgba(0,0,0,.16)}*,:after,:before{box-sizing:border-box}body,html{margin:0;padding:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:14px;color:var(--color-text-primary);background:var(--color-background);-webkit-font-smoothing:antialiased}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}button{font-family:inherit}