body {
  font-family: "Segoe UI", Tahoma, sans-serif;
  background: #ffffff;
  color: #222222;
  margin: 0;
}

.topnav {
  background: #0f4c81;
  color: #ffffff;
  padding: 0.7rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.topnav a {
  color: #ffffff;
  text-decoration: none;
  font-weight: 600;
}

.version {
  font-size: 0.92rem;
  opacity: 0.95;
}

.page {
  padding: 1.4rem 1.8rem 2rem;
  max-width: 980px;
}

h1 {
  font-size: 1.95rem;
  border-bottom: 2px solid #d9d9d9;
  padding-bottom: 0.4rem;
}

h2 {
  font-size: 1.25rem;
  margin-top: 1.6rem;
  color: #0f4c81;
}

p, li {
  line-height: 1.55;
}

pre {
  background: #f3f6f9;
  border: 1px solid #dbe3ea;
  border-radius: 6px;
  padding: 0.9rem;
  overflow: auto;
}

code {
  font-family: Consolas, "Courier New", monospace;
}

.topic-meta {
  color: #4f5b66;
  margin-bottom: 1rem;
}

.toc-group {
  margin-bottom: 1.3rem;
}

.toc-group h2 {
  margin-bottom: 0.5rem;
}

ul li, ol li {
  margin-bottom: 0.35rem;
}