:root{--page-background: #f4f6f8;--surface-primary: #ffffff;--surface-secondary: #f8fafc;--surface-muted: #eef2f6;--border-default: #d8dee7;--border-strong: #aeb8c7;--text-primary: #172033;--text-secondary: #4b5565;--text-muted: #6b7482;--action-primary: #163b66;--action-primary-hover: #1e4b7f;--focus-ring: rgba(22, 59, 102, .24);--success: #247047;--warning: #9a650d;--error: #b42318;--radius-small: 6px;--radius-medium: 8px;--radius-large: 12px;--shadow-subtle: 0 10px 30px rgba(15, 23, 42, .08);--tool-workspace-compact-width: 880px;--tool-workspace-max-width: 1120px;--tool-workspace-wide-width: 1240px;--tool-workspace-padding: 24px;--tool-workspace-mobile-padding: 14px;--tool-workspace-gap: 16px;--tool-workspace-radius: var(--radius-large);--tool-workspace-side-panel-min: 280px;--tool-workspace-upload-min-height: 168px;--tool-workspace-work-area-min-height: 300px;--tool-workspace-preview-min-height: 214px;--tool-workspace-media-max-height: 360px}