Please read the AI-generated image I have attached, redraw it as a directly editable vector illustration, and output a single complete SVG file (pure vector code, not dependent on any external resources) that can be saved as .svg.
Step 1: First list the identified components, hierarchical relationships, and process order from the image, no more than 10 items, and after confirmation, produce the image accordingly.
Content and structure: Completely restore all elements, hierarchies, and process order of the original image, without omission or fabrication; if it contains multiple sub-figures, number them as panels a, b, c and attach a one-sentence Chinese caption to each; each element should have an accurate Chinese text label; all symbols, abbreviations, and color meanings must be explained in a legend or annotations.
Vector and layer specifications: Each graphic, text label, arrow, and annotation is an independent editable object that can be individually selected, moved, modified, deleted, and recombined; text uses `<text>` elements that retain editable text and must not be converted to paths; arrows are represented by independent lines with arrow markers; the whole does not contain bitmaps, masks, filters, gradients, shadows, or 3D effects; group by semantics and name them properly (layer-background, panel-a, element-xxx, arrow-1, label-xxx, legend), with layer order: background → panel → main graphics → connecting arrows → text labels → legend; viewBox and canvas size are reasonable, elements are evenly distributed with sufficient white space.
Typography style: Comply with SCI journal illustration standards, use unified Arial/Helvetica sans-serif font and 1–2 px uniform line width, restrained color scheme, still clearly distinguishable after reduced printing and grayscale printing, and differentiate by fill shade or hatching when necessary.
Output: First provide the complete .svg code, then attach a brief layer structure explanation. Before output, verify: the code starts with `<svg>`, ends with `</svg>`, and can be parsed normally; if not, roll back the above steps and regenerate until the output is a valid SVG file.
