We need to write an article about "专题地图制作全流程指南" with title already given. Must not output title, just the body. Must be 6-8 paragraphs, each 150-250 words. Must be at least 1500 words total, cannot be less than 1050. So we need around 1500-1600 words. 6-8 paragraphs each 150-250 words => total 900-2000 words. To reach 1500, we can do 7 paragraphs of ~220 words each = 1540 words. Must be natural, human-like, no AI phrases, no forbidden words. Must avoid the listed banned words. Must not use "、". Must not use beginning phrases like "". Must not use "非常重要" etc. Must not use filler. Must use active voice, short sentences, concrete details.

Structure: 6-8 natural paragraphs, each 150-250 words. Let's aim for 7 paragraphs of about 220 words each.

We need to ensure word count >=1500. 7*220 = 1540. So we need to write around 220 words per paragraph.

We must avoid banned words. Also avoid "开头禁用：、". So we cannot start with those. We can start with something like "数据本身是枯燥的，但把它变成可读的地图，却需要一套清晰的步骤". That's okay.

Also avoid transition words like "、". So we must not use those. Use natural flow.

We must not use "全流程指南" phrase? It's okay to mention the concept but not as a banned phrase? Not listed. It's fine.

We must not use "让我们...、。当你面对一堆统计数字时，第一件事是把它们整理成有意义的单元。这里不谈抽象概念，只说实际操作：把原始表格拆开，去掉空白行，统一时间格式。每一列都对应一个变量，每一行代表一个观察对象。这样一来，数据不再是冷冰冰的表格，而是可以直接喂给后续流程的素材。"

Count characters? Let's approximate: It's maybe around 180 characters. Need 220. Add more.

Add: "随后，你会把这些整理好的表格放进表格软件或脚本里，进行筛选、合并、甚至计算新指标。比如，把人口数据和就业率相乘，得到一个综合发展指数。这一步看似简单，却决定了后面地图呈现的精度与可信度。"

Now total maybe 250 characters. That's okay.

Paragraph 1 ends with something that leads to next paragraph, not a summary.

Paragraph 2: talk about data cleaning, variable selection, choosing metrics.

"整理完表格后，你会面临两个关键选择。一是决定哪些指标真正能支撑你的故事，二是判断这些指标之间的关联方式。举例来说，若想展示城市交通拥堵程度，光有车流量不够，还需要把公交载客量、道路宽度、信号灯配时等因素加入进来。每加入一个变量，就要检查它的分布是否均衡，是否出现异常值。异常值往往暗示数据采集错误，或是特殊现象值得单独探讨。处理完这些细节后，你的数据集已经具备了足够的深度，可以进入可视化环节。"

Paragraph 3: talk about map type selection.

"有了干净的数据，接下来要决定地图的基本形态。常见的选项包括点图、等值线、热力图以及面图。每种形式对应不同的空间单位，也决定了你可以表达的变量类型。例如，面图适合展示行政区划内的平均值，而热力图则更适合呈现密度型数据。此时，你需要回忆一下比例投影的概念：某些投影会把区域大小拉伸，进而在视觉上放大或缩小特定区域的意义。选择投影时，要兼顾地理真实性和阅读便利性。如果你的研究范围覆盖多个时区，还要考虑时间维度的同步，以免出现时间错位的误导。"

Paragraph 4: talk about visual hierarchy, color palettes, symbology.

"色彩与符号是让地图快速传递信息的关键语言。你可以先确定一个主色调，然后在其基础上调配几种辅助色，形成从浅到深的递进关系。这样，观者一眼就能分辨出高低程度的差异，而不必盯着图例查找。若需要区分不同类别，使用不同形状的图标或线条会更直观。比如，将不同收入阶层用圆形、方形、三角形标记，并在大小上对应经济规模。此时，要注意对比度：过低的对比会让人眼疲劳，过高的对比则可能误导情绪。配色时，可以借助已有的色彩方案库，或是根据行业惯例自行调配。每一次调色，都要在纸上或屏幕上打印出来，检查在不同光线下的可读性。"

Paragraph 5: talk about storytelling flow, annotations, legends.

"地图不只是静态的图形，它也是一个小故事。你需要在空间布局之外加入文字说明、箭头指示以及关键点注释。这些元素帮助阅读者快速抓住核心洞察，而不是在图例里翻找。例如，在某条高速公路上标记出一段事故高发区，并