扁平矢量规划结构分析图：滨江片区

规划结构分析图，一轴两带多节点，主体为滨江片区，俯视平面，扁平矢量插画风格，干净的几何色块，无纹理无渐变，清冷蓝灰配色，浅灰蓝到深海军蓝，粗壮的发展轴箭头，柔和的带状景观带，大小分级的圆形核心与节点，虚线划分的片区，构图简洁，信息层级清晰，大量留白，画面中不出现文字和标注，高清，适合设计展板

urban planning structure diagram with one axis, two belts and multiple nodes of a riverside district, top-down plan view, flat vector illustration style, clean geometric shapes, no texture, no gradients, cool blue-grey palette from pale grey blue to deep navy, bold development axis arrows, soft ribbon-shaped landscape belts, hierarchical circular cores and nodes, dashed zone boundaries, clean composition, clear visual hierarchy, generous white space, no text or labels in the image, high resolution, architecture presentation board