<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
        xmlns:xhtml="http://www.w3.org/1999/xhtml">

  <!-- Home -->
  <url>
    <loc>https://zxiaohan.com/</loc>
    <lastmod>2026-06-07</lastmod>
    <priority>1.0</priority>
    <changefreq>monthly</changefreq>
  </url>

  <!-- ── Research ──────────────────────────────────────────── -->
  <url>
    <loc>https://zxiaohan.com/research/</loc>
    <lastmod>2026-06-07</lastmod>
    <priority>0.9</priority>
    <changefreq>monthly</changefreq>
  </url>
  <url>
    <loc>https://zxiaohan.com/research/aptamer/</loc>
    <lastmod>2026-06-07</lastmod>
    <priority>0.8</priority>
    <changefreq>daily</changefreq>
  </url>
  <url>
    <loc>https://zxiaohan.com/research/aptamer/reports/</loc>
    <lastmod>2026-06-07</lastmod>
    <priority>0.6</priority>
    <changefreq>daily</changefreq>
  </url>
  <url>
    <loc>https://zxiaohan.com/research/aptamer/reports/biosensor/</loc>
    <lastmod>2026-06-07</lastmod>
    <priority>0.5</priority>
    <changefreq>daily</changefreq>
  </url>
  <url>
    <loc>https://zxiaohan.com/research/aptamer/reports/cancer/</loc>
    <lastmod>2026-06-07</lastmod>
    <priority>0.5</priority>
    <changefreq>daily</changefreq>
  </url>
  <url>
    <loc>https://zxiaohan.com/research/aptamer/reports/food_safety/</loc>
    <lastmod>2026-06-07</lastmod>
    <priority>0.5</priority>
    <changefreq>daily</changefreq>
  </url>
  <url>
    <loc>https://zxiaohan.com/research/aptamer/reports/infectious_disease/</loc>
    <lastmod>2026-06-07</lastmod>
    <priority>0.5</priority>
    <changefreq>daily</changefreq>
  </url>
  <url>
    <loc>https://zxiaohan.com/research/aptamer/reports/neurodegeneration/</loc>
    <lastmod>2026-06-07</lastmod>
    <priority>0.5</priority>
    <changefreq>daily</changefreq>
  </url>
  <url>
    <loc>https://zxiaohan.com/research/aptamer/reports/therapeutic/</loc>
    <lastmod>2026-06-07</lastmod>
    <priority>0.5</priority>
    <changefreq>daily</changefreq>
  </url>

  <!-- ── Research tools ────────────────────────────────────── -->
  <url>
    <loc>https://zxiaohan.com/research/tools/kd-fit/</loc>
    <lastmod>2026-06-07</lastmod>
    <priority>0.7</priority>
    <changefreq>monthly</changefreq>
  </url>
  <url>
    <loc>https://zxiaohan.com/research/tools/aptafold/</loc>
    <lastmod>2026-06-07</lastmod>
    <priority>0.7</priority>
    <changefreq>monthly</changefreq>
  </url>
  <url>
    <loc>https://zxiaohan.com/research/tools/aptamer-analysis/</loc>
    <lastmod>2026-06-07</lastmod>
    <priority>0.7</priority>
    <changefreq>monthly</changefreq>
  </url>
  <url>
    <loc>https://zxiaohan.com/research/tools/structural-family-classification/</loc>
    <lastmod>2026-06-07</lastmod>
    <priority>0.7</priority>
    <changefreq>monthly</changefreq>
  </url>
  <url>
    <loc>https://zxiaohan.com/AptaPilot/</loc>
    <lastmod>2026-06-07</lastmod>
    <priority>0.7</priority>
    <changefreq>monthly</changefreq>
  </url>

  <!-- ── RBTX (bilingual) ──────────────────────────────────── -->
  <url>
    <loc>https://zxiaohan.com/rbtx/</loc>
    <lastmod>2026-06-07</lastmod>
    <priority>0.9</priority>
    <changefreq>monthly</changefreq>
    <xhtml:link rel="alternate" hreflang="en" href="https://zxiaohan.com/rbtx/" />
    <xhtml:link rel="alternate" hreflang="zh-CN" href="https://zxiaohan.com/rbtx/zh/" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://zxiaohan.com/rbtx/" />
  </url>
  <url>
    <loc>https://zxiaohan.com/rbtx/zh/</loc>
    <lastmod>2026-06-07</lastmod>
    <priority>0.9</priority>
    <changefreq>monthly</changefreq>
    <xhtml:link rel="alternate" hreflang="en" href="https://zxiaohan.com/rbtx/" />
    <xhtml:link rel="alternate" hreflang="zh-CN" href="https://zxiaohan.com/rbtx/zh/" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://zxiaohan.com/rbtx/" />
  </url>

  <!-- ── Psi (quant) ───────────────────────────────────────── -->
  <url>
    <loc>https://zxiaohan.com/quant/</loc>
    <lastmod>2026-06-07</lastmod>
    <priority>0.9</priority>
    <changefreq>monthly</changefreq>
  </url>
  <url>
    <loc>https://zxiaohan.com/quant/quantum-safe/</loc>
    <lastmod>2026-06-14</lastmod>
    <priority>0.8</priority>
    <changefreq>monthly</changefreq>
  </url>
  <url>
    <loc>https://zxiaohan.com/quant/research/</loc>
    <lastmod>2026-06-07</lastmod>
    <priority>0.8</priority>
    <changefreq>daily</changefreq>
  </url>
  <url>
    <loc>https://zxiaohan.com/quant/research/signals/</loc>
    <lastmod>2026-06-07</lastmod>
    <priority>0.6</priority>
    <changefreq>daily</changefreq>
  </url>
  <url>
    <loc>https://zxiaohan.com/quant/research/reports/</loc>
    <lastmod>2026-06-07</lastmod>
    <priority>0.6</priority>
    <changefreq>daily</changefreq>
  </url>
  <url>
    <loc>https://zxiaohan.com/quant/research/backtest/</loc>
    <lastmod>2026-06-07</lastmod>
    <priority>0.6</priority>
    <changefreq>weekly</changefreq>
  </url>
  <url>
    <loc>https://zxiaohan.com/quant/research/paper/</loc>
    <lastmod>2026-06-07</lastmod>
    <priority>0.6</priority>
    <changefreq>daily</changefreq>
  </url>
  <url>
    <loc>https://zxiaohan.com/quant/research/macro/</loc>
    <lastmod>2026-06-07</lastmod>
    <priority>0.6</priority>
    <changefreq>daily</changefreq>
  </url>

</urlset>
