body {
  font-family: "lucida grande", "lucida sans unicode", lucida, helvetica, "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
}
p {
  margin: 0px;
}
h3 {
  margin-block-start: 0.6rem;
  margin-block-end: 0.6rem;
}
.page-container {
  display: flex;
  flex-direction: column;
  margin: 0 auto;
  max-width: 720px;
  padding: 0 20px;
  box-sizing: border-box;
}
.page-header-container {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.page-header {
  margin: 0 auto;
  overflow: hidden;
  padding: 20px 50px 0 50px;
}
.page-header .logo-text {
  display: flex;
  align-items: center;
}
.page-header .logo-text .header-logo {
  height: 60px;
  width: 60px;
  margin-right: 5px;
}
.page-header .logo-text .logo-title {
  display: flex;
  flex-direction: column;
  text-align: center;
}
.page-header .logo-text .logo-title .logo-title-main {
  font-size: 24px;
  font-weight: bold;
}
.page-header .logo-text .logo-title .logo-title-desc {
  font-size: 18px;
  color: #666;
}
.page-nav {
  display: flex;
  padding: 5px 10px;
}
.page-nav ul {
  display: flex;
  gap: 22px;
  margin: 8px 0;
  list-style-type: none;
  flex-wrap: wrap;
}
.page-nav a {
  text-decoration: none;
  color: #333;
  font-size: 18px;
  white-space: nowrap;
}
.page-nav a:hover {
  color: #666;
}
.main-text {
  margin: 0 auto;
  padding: 20px 50px 5px 50px;
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.25;
  text-align: center;
}
.sub-text {
  margin: 0 auto;
  padding: 5px 50px 20px 50px;
  font-size: 1.2rem;
  font-weight: 400;
  line-height: 1.25;
  text-align: center;
}
.features .feature-row {
  display: flex;
  justify-content: center;
  margin: 20px 20px;
}
.features .feature-row .feature-item {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 250px;
  text-align: center;
}
.features .feature-row .feature-item .feature-title {
  font-size: 1.15rem;
  font-weight: 600;
}
.footer {
  margin: 0 auto;
  padding: 20px 50px 0 50px;
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.25;
  text-align: center;
}