索网天棚：亚克力板下的透明起伏

Design a sweeping tensile canopy in the manner of Frei Otto, spanning a landscaped park and its walkways as one continuous surface. Show the roof formed by a cable net stretched between tall slender steel masts and pulled down to the ground by splayed guy cables, the surface rising into sharp peaks at each mast and sagging into deep saddle curves between them, so the geometry reads as a soap film pulled into shape by pure tension rather than as a designed form. Detail the net as a fine diagonal mesh of steel cables on a grid of about seventy-five centimetres, with translucent smoke-tinted acrylic panels fixed at the nodes and their joints left open, so the panels read as overlapping scales instead of a sealed skin. Show the whole assembly as light and nearly weightless — thin masts, dramatic anchor points where cables plunge into concrete blocks set in the grass. Set it over a grassy park slope with a lake, winding paths and people below. Show bright afternoon sun filtering through the tinted acrylic as a soft grey-amber wash. Photorealistic, taut, translucent grey over green, wide low view.