body {
  margin: 0;
  padding: 0;
  background: #f7f9fc;
  color: #182233;
  font-family: Verdana, Arial, sans-serif;
  font-size: 14px;
  line-height: 1.55;
}

a {
  color: #0b66b3;
}

.pb-header {
  background: #0b1628;
  color: #ffffff;
  padding: 14px 20px;
  border-bottom: 4px solid #1b9bd7;
}

.pb-breadcrumb {
  font-size: 12px;
  color: #b8d4ee;
  margin-bottom: 6px;
}

.pb-breadcrumb a {
  color: #ffffff;
}

.pb-brand {
  font-size: 20px;
  font-weight: bold;
}

main {
  max-width: 980px;
  margin: 0 auto;
  padding: 24px 28px 40px;
  background: #ffffff;
  min-height: 100vh;
  box-shadow: 0 0 18px rgba(11, 22, 40, 0.12);
}

h1, h2, h3 {
  color: #0b3763;
}

.note {
  background: #eef7ff;
  border-left: 5px solid #1b9bd7;
  padding: 12px 14px;
  margin: 16px 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 18px 0;
}

th, td {
  border: 1px solid #ccd7e2;
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
}

th {
  background: #e5eef8;
}

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