* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-width: 1024px;
  min-height: 100%;
  margin: 0;
  background: #eef9ff;
  font-family: "Source Han Sans CN", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  letter-spacing: 0;
}

body {
  overflow: auto;
}

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

.viewport {
  width: 100%;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  background: #eef9ff;
}

.stage {
  position: relative;
  width: 1920px;
  height: 980px;
  flex: 0 0 auto;
  overflow: hidden;
  background-color: #eaf8ff;
  background-image: url("./assets/banner-bg.png");
  background-repeat: no-repeat;
  background-position: left top;
  background-size: 1920px 980px;
}

.topbar {
  position: absolute;
  inset: 0 0 auto 0;
  z-index: 2;
  height: 80px;
  background: #fff;
}

.brand {
  position: absolute;
  left: 360px;
  top: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  height: 48px;
  font-size: 20px;
  line-height: 20px;
  font-weight: 500;
  color: #333;
}

.brand img {
  width: 48px;
  height: 48px;
  display: block;
}

.download {
  position: absolute;
  left: 1424px;
  top: 17px;
  width: 136px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: #0085ff;
  color: #fff;
  font-size: 18px;
  line-height: 18px;
  font-weight: 500;
}

.hero {
  position: absolute;
  left: 0;
  top: 80px;
  width: 1920px;
  height: 900px;
}

.hero-visual {
  position: absolute;
  left: 1000px;
  top: 138px;
  width: 810px;
  height: auto;
  display: block;
}

.copy {
  position: absolute;
  left: 260px;
  top: 148px;
  width: 680px;
}

.copy h1 {
  margin: 0;
  color: #0B1F30;
  font-family: AlibabaPuHuiTi-Bold, "Source Han Sans CN", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  font-size: 64px;
  letter-spacing: 0;
  line-height: 88px;
  font-weight: 700;
}

.copy h1 span {
  color: #0081FF;
  font-family: AlibabaPuHuiTi-Bold, "Source Han Sans CN", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  font-size: 64px;
  letter-spacing: 0;
  line-height: 88px;
  font-weight: 700;
}

.copy p {
  position: absolute;
  left: 0;
  top: 100px;
  margin: 0;
  color: #71818e;
  font-family: SourceHanSansCN-Regular, "Source Han Sans CN", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  font-size: 32px;
  letter-spacing: 0;
  line-height: 48px;
  font-weight: 400;
}

.repair {
  position: absolute;
  left: 0;
  top: 268px;
  width: 280px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  border-radius: 12px;
  background-image: linear-gradient(43deg, #0588FF 0%, #5AB0FF 80%);
  color: #fff;
  font-family: SourceHanSansCN-Bold, "Source Han Sans CN", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  font-size: 24px;
  letter-spacing: 0;
  text-align: center;
  font-weight: 700;
  transition: transform 0.2s ease;
}

.repair:hover {
  transform: scale(1.04);
}

.repair img {
  width: 32px;
  height: 32px;
  display: block;
}

.features {
  position: absolute;
  left: 260px;
  top: 609px;
  display: grid;
  grid-template-columns: repeat(4, 326px);
  gap: 32px;
}

.feature {
  width: 326px;
  height: 240px;
  margin: 0;
  padding-top: 36px;
  cursor: pointer;
  text-align: center;
  background: rgba(255, 255, 255, 0.8);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 2px solid #fff;
  border-radius: 16px;
  box-shadow: 0 10px 16px 0 rgba(143, 201, 255, 0.23);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.feature:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 26px 0 rgba(71, 166, 255, 0.3);
}

.feature img {
  width: 64px;
  height: 64px;
  display: block;
  margin: 0 auto;
}

.feature h2 {
  margin: 16px 0 0;
  color: #1d1d1f;
  font-family: SourceHanSansCN-Medium, "Source Han Sans CN", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  font-size: 24px;
  letter-spacing: 0;
  text-align: center;
  line-height: 28px;
  font-weight: 500;
}

.feature p {
  margin: 13px 0 0;
  color: #677b8a;
  font-family: SourceHanSansCN-Regular, "Source Han Sans CN", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  font-size: 20px;
  letter-spacing: 0;
  text-align: center;
  line-height: 28px;
  font-weight: 400;
}

.footers {
  position: absolute;
  left: 0;
  bottom: 5px;
  z-index: 3;
  width: 100%;
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  line-height: 24px;
  color: #666;
  background-color: transparent;
}

.footers span,
.footers a {
  font-size: inherit;
  line-height: inherit;
  color: inherit;
}

.footers a {
  margin-left: 10px;
  text-decoration: underline;
  text-underline-offset: 2px;
}