:root {
  /* 电脑端页面内容的统一宽度。 */
  --content-width: 1280px;
  /* 区小号的品牌蓝色。 */
  --brand-blue: #096ff1;
  /* 页面主文字颜色。 */
  --ink: #172033;
  /* 说明性文字颜色。 */
  --muted: #707988;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 1200px;
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background: #fff;
  font-family: "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  height: 80px;
  border-bottom: 1px solid #e8ebef;
  background: #fff;
}

.site-header__inner,
.hero__inner,
.section-shell {
  position: relative;
  width: var(--content-width);
  height: 100%;
  margin: 0 auto;
}

.site-header__inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
}

.wordmark {
  display: inline-flex;
  width: max-content;
}

.wordmark img {
  display: block;
  width: 85px;
  height: 31px;
}

.main-nav {
  display: flex;
  gap: 56px;
  font-size: 16px;
  font-weight: 500;
}

.download-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  gap: 10px;
  padding: 0 25px;
  border-radius: 8px;
  color: #fff;
  background: var(--brand-blue);
  font-size: 17px;
  font-weight: 600;
  box-shadow: 0 2px 6px rgb(0 87 218 / 18%);
}

.download-button:hover {
  background: #0061d9;
}

.download-button:focus-visible,
.main-nav a:focus-visible,
.wordmark:focus-visible {
  outline: 3px solid #ffdc4d;
  outline-offset: 4px;
}

.download-button--header {
  justify-self: end;
  min-height: 42px;
  font-size: 15px;
}

.hero {
  position: relative;
  height: 614px;
  overflow: visible;
  background: linear-gradient(108deg, #0476ec 0%, #096ff1 62%, #0074ee 100%);
}

.hero__art {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.48;
}

.hero__copy {
  position: absolute;
  top: 162px;
  left: 34px;
  width: 920px;
  color: #fff;
  text-align: center;
}

.hero h1 {
  margin: 0;
  font-size: 55px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.055em;
}

.hero__eyebrow {
  margin: 25px 0 33px;
  color: #fff;
  font-size: 26px;
  line-height: 1.2;
}

.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 45px;
}

.download-button--light {
  min-width: 240px;
  min-height: 71px;
  border-radius: 9px;
  color: var(--brand-blue);
  background: #fff;
  font-size: 19px;
}

.download-button--light:hover {
  background: #edf7ff;
}

.hero__qr {
  display: flex;
  align-items: center;
  gap: 18px;
  color: #fff;
  font-size: 0;
}

.hero__qr::before {
  width: 1px;
  height: 29px;
  background: rgb(255 255 255 / 75%);
  content: "";
}

.hero__qr img {
  width: 104px;
  height: 104px;
  padding: 5px;
  border-radius: 7px;
  background: #fff;
}

.hero__qr span {
  display: none;
}

.hero__screen {
  position: absolute;
  z-index: 2;
  right: 238px;
  bottom: -610px;
  width: 337px;
  filter: drop-shadow(0 15px 16px rgb(3 36 93 / 22%));
}

.hero__screen img {
  display: block;
  width: 100%;
  height: auto;
}

.features {
  min-height: 728px;
  padding: 101px 0 82px;
}

.section-intro > p,
.about__copy > p:first-child {
  width: max-content;
  margin: 0 0 18px;
  padding-bottom: 15px;
  border-bottom: 4px solid var(--brand-blue);
  color: var(--ink);
  font-size: 31px;
  font-weight: 700;
  line-height: 1;
}

.section-intro h2 {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.feature-grid {
  width: 600px;
  margin-top: 41px;
}

.feature-card {
  display: flex;
  align-items: center;
  min-height: 139px;
  padding: 22px 8px;
  border-bottom: 1px solid #e2e5e9;
}

.feature-card i {
  flex: 0 0 96px;
  color: var(--brand-blue);
  font-size: 51px;
  line-height: 1;
}

.feature-card h3 {
  margin: 0 0 9px;
  color: #242a35;
  font-size: 22px;
  line-height: 1.2;
}

.feature-card p,
.about__copy > p:not(:first-child) {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.about {
  display: grid;
  grid-template-columns: 1fr 430px;
  align-items: end;
  min-height: 405px;
  padding: 71px 5px 52px;
  border-top: 1px solid #e1e4e8;
}

.about__copy {
  max-width: 560px;
}

.about__copy > p:first-child {
  margin-bottom: 35px;
}

.about h2 {
  margin: 0 0 19px;
  color: #202630;
  font-size: 22px;
  line-height: 1.3;
}

.about__art {
  justify-self: end;
  width: 341px;
  height: auto;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  padding: 31px max(4.5vw, 54px);
  border-top: 1px solid #e1e4e8;
  color: #9198a3;
  font-size: 13px;
}