html {
  font-size: 16px;
}

body {
  margin: 0;
  background: #ffffff;
  color: #222222;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.75;
}

a {
  color: #1a5fb4;
  text-decoration: none;
}

a:hover,
a:focus-visible {
  text-decoration: underline;
}

.page {
  max-width: 760px;
  margin: 0 auto;
  padding: 40px 20px 56px;
}

.header {
  margin-bottom: 24px;
}

h1,
h2 {
  margin: 0;
  font-weight: 600;
  line-height: 1.4;
}

h1 {
  font-size: 2rem;
}

h2 {
  margin-bottom: 10px;
  font-size: 1.25rem;
}

.meta {
  margin-top: 12px;
  color: #666666;
  font-size: 0.95rem;
}

.meta p {
  margin: 4px 0;
}

.nav {
  margin-bottom: 28px;
  font-size: 0.95rem;
}

.nav a[aria-current="page"] {
  color: #222222;
  font-weight: 600;
}

.nav .sep {
  margin: 0 8px;
  color: #999999;
}

.content section + section {
  margin-top: 28px;
}

.content p {
  margin: 0 0 14px;
}

.content ul,
.content ol {
  margin: 0 0 14px;
  padding-left: 1.4rem;
}

.content li + li {
  margin-top: 8px;
}

@media (max-width: 640px) {
  .page {
    padding-top: 28px;
    padding-bottom: 40px;
  }

  h1 {
    font-size: 1.7rem;
  }
}