:root {
  --site-display-font: "Songti SC", "STSong", "Noto Serif CJK SC", "Source Han Serif SC", "SimSun", serif;
  --site-body-font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
}

body {
  font-family: var(--site-body-font);
  font-size: 16px;
}

body main :is(h1, h2, h3, h4) {
  font-family: var(--site-display-font) !important;
  font-weight: 500;
  letter-spacing: -.018em;
  line-height: 1.4;
}

body main h1 {
  font-size: clamp(38px, 5vw, 64px);
  line-height: 1.2;
}

body main h2 {
  font-size: clamp(28px, 3.1vw, 40px);
}

body main h3 {
  font-size: clamp(21px, 2.2vw, 27px);
}

body main :is(p, li) {
  font-family: var(--site-body-font);
  font-size: 16px;
  line-height: 1.82;
}

body main :is(.eyebrow, small, .section-index, .section-number) {
  font-family: var(--site-body-font);
}

body main .faq article :is(h2, h3) {
  font-size: clamp(22px, 2.4vw, 28px);
  line-height: 1.5;
}

body main :is(.faq-list summary, .faq-question) {
  font-family: var(--site-display-font);
  font-size: clamp(20px, 2.2vw, 25px);
  font-weight: 500;
  line-height: 1.5;
}

@media (max-width: 720px) {
  body main h1 {
    font-size: clamp(34px, 9vw, 46px);
    line-height: 1.25;
  }

  body main h2 {
    font-size: clamp(25px, 7vw, 33px);
  }

  body main h3 {
    font-size: clamp(20px, 5.4vw, 24px);
  }

  body main :is(p, li) {
    font-size: 15px;
    line-height: 1.8;
  }

  body main .faq article :is(h2, h3) {
    font-size: 23px;
  }
}