简约风实验设计工作流程插画素材

Flat 2D vector scientific workflow diagram, BioRender-style, minimalistic, clean horizontal layout, white background. Redesign the experimental design figure into a linear workflow instead of a radial diagram. Left to right flow: Step 1: Gut microbiome analysis identifying ImP-producing bacteria. Step 2: Measurement of ImP production and systemic circulation. Step 3: Hypothalamic analysis showing neuronal and molecular changes. Step 4: Mouse behavioral assays assessing stress-related phenotypes. Step 5: Human cohort and brain imaging validation. Use clear arrows connecting each step. Group related experiments within each step. Simplified icons only, minimal labels, no central hub, no radial layout. Publication-ready PPT figure. Negative prompt: radial design, scattered layout, decorative elements, long text, 3D, photorealistic