* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  color: #222;
  background: #fff;
}
.page {
  max-width: 640px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
}
.header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 1.5rem;
}
.avatar {
  width: 76px;
  height: 76px;
  border-radius: 50%;
  background: #eef2f7;
  color: #3a5a8c;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 22px;
  flex-shrink: 0;
}
h1 { font-size: 22px; margin: 0 0 4px; font-weight: 600; }
h2 { font-size: 17px; margin: 0 0 12px; font-weight: 600; }
.tagline { margin: 0; font-size: 14px; color: #666; }
.bio { font-size: 15px; margin-bottom: 1.5rem; }
.contact { display: flex; gap: 20px; font-size: 13px; color: #555; margin-bottom: 20px; }
.contact a { color: #3a5a8c; text-decoration: none; }
.section { border-top: 1px solid #eee; padding-top: 14px; margin-bottom: 20px; }
.label { font-size: 13px; color: #999; margin: 0 0 6px; }
.patent { font-size: 14px; margin: 0 0 4px; }
.muted { color: #999; font-size: 12px; }
.post-row {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid #eee;
  font-size: 15px;
}
.post-row a { color: #222; text-decoration: none; }
.post-row a:hover { text-decoration: underline; }
.back { font-size: 13px; color: #3a5a8c; text-decoration: none; display: inline-block; margin-bottom: 1rem; }
.content { font-size: 15px; line-height: 1.7; }