* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  color: #222222;
  background: #f7f7f7;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.75;
}

.page {
  max-width: 860px;
  min-height: 100vh;
  margin: 0 auto;
  padding: 28px 20px 56px;
  background: #ffffff;
}

h1 {
  margin: 0 0 18px;
  color: #111111;
  font-size: 28px;
  line-height: 1.3;
}

h2 {
  margin: 30px 0 12px;
  color: #111111;
  font-size: 21px;
  line-height: 1.4;
}

h3 {
  margin: 24px 0 10px;
  color: #222222;
  font-size: 18px;
  line-height: 1.45;
}

p {
  margin: 10px 0;
}

ul,
ol {
  margin: 10px 0;
  padding-left: 24px;
}

li {
  margin: 6px 0;
}

strong {
  font-weight: 700;
}

a {
  color: #e83b22;
  word-break: break-all;
}

hr {
  height: 1px;
  margin: 24px 0;
  border: 0;
  background: #eeeeee;
}

@media (max-width: 560px) {
  .page {
    padding: 22px 16px 44px;
  }

  h1 {
    font-size: 25px;
  }

  h2 {
    font-size: 19px;
  }

  h3 {
    font-size: 17px;
  }
}