Convert the input satellite imagery into a professional GIS vector base map, with stylized rendering while strictly preserving the original geospatial relationships. Retain the exact position, geometry and scale of all roads, watercourses, rivers, lakes, shorelines, bridges, green spaces, urban boundaries and landform outlines; no spatial structure shall be altered. Abstract the real satellite imagery into a modern urban planning analysis base map with a flat vector cartographic style. Adopt a minimalist, contemporary, scientific and professional GIS map design language.
Use pure white for land background; light yellow-green polygons for parks, green spaces and woodlands; light to pale blue gradient for rivers, lakes and water systems; light gray for urban roads with smooth junctions at road intersections. Maintain a consistent line-width hierarchy and road-class representation. Remove building details, roof textures, vehicles, tree textures, shadows, photographic noise and surface textures. Only retain geospatial information suitable for spatial analysis.
The overall composition features ample white space, clear layers and a clean visual effect. Colors are soft, low-saturation and highly distinguishable, suited for planning analysis diagrams, traffic analysis drawings, regional research maps, landscape analysis plots and thesis base maps.
Style references: ArcGIS vector base map, Mapbox Light, Apple Maps, OpenStreetMap Cartography, Google Maps vector map, Swiss Design, urban planning atlases, transportation planning analysis drawings, professional GIS cartography, publication-quality map rendering, high resolution, sharp edges, vector aesthetic, scientific mapping, analytical base map style. Preserve true geographic accuracy; do not add any non-existent roads, rivers, buildings or terrain features.