:root{--nh-font-family:system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;--nh-font-family-code:ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;--nh-radius-control:6px;--nh-radius-card:8px;--nh-radius-tag:4px;--nh-motion-hover:.12s;--nh-motion-popup:.18s;--nh-control-height:36px;--nh-table-row-min-height:48px;--nh-form-max-width:800px}:root[data-theme=light]{--nh-canvas:#f5f5f5;--nh-surface:#fff;--nh-surface-muted:#f5f5f5;--nh-text:#171717;--nh-text-secondary:#525252;--nh-border:#e5e5e5;--nh-control-border:#767676;--nh-primary:#171717;--nh-on-primary:#fff;--nh-primary-hover:#404040;--nh-primary-active:#0a0a0a;--nh-focus:#1d4ed8;--nh-link:#1d4ed8;--nh-success:#166534;--nh-success-bg:#f0fdf4;--nh-warning:#92400e;--nh-warning-bg:#fffbeb;--nh-danger:#b91c1c;--nh-danger-bg:#fef2f2;--nh-info:#1d4ed8;--nh-info-bg:#eff6ff;--nh-selected-bg:#eaeaea;--nh-disabled-text:#737373;--nh-disabled-bg:#f5f5f5;--nh-shadow-popover:0 4px 16px 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