body {
  margin: 0;
  padding: 0;
  background: #f8f9fa;
  font-family: "Microsoft YaHei", sans-serif;
}

.top-box {
  position: absolute;
  width: 100%;
  height: 72px;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(40px);
  z-index: 4;
}
.top-box .header-box {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: min(1200px, 90%);
  height: 72px;
  margin: 0 auto;
  font-style: normal;
  font-weight: 400;
}
.top-box .header-box .header-left {
  display: flex;
  align-items: center;
  gap: 8px;
}
.top-box .header-box .header-left img {
  width: 36px;
  height: 36px;
}
.top-box .header-box .header-left span {
  color: #fff;
  font-size: clamp(14px, 1.2vw, 16px);
  font-weight: 700;
  line-height: 150%;
}
.top-box .header-box .header-left span:last-child {
  opacity: 0.6;
  font-weight: 400;
}

.banner-box {
  background: url("https://res.callmysoft.com/wm-static-resource/Sem/769_sem/banner-bg.png") no-repeat center;
  background-size: cover;
  min-height: 600px;
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.banner-box .title {
  margin-bottom: 8vh;
  display: flex;
  gap: 24px;
  padding-top: 15vh;
}
.banner-box .title img {
  width: clamp(64px, 8vw, 108px);
  height: clamp(64px, 8vw, 108px);
}
.banner-box .title h1 span {
  color: #fff;
  font-size: clamp(28px, 5vw, 64px);
  font-weight: 700;
  line-height: 150%;
  letter-spacing: 3.2px;
}
.banner-box .title h1 .lines {
  display: flex;
  gap: 6%;
  height: 10px;
  width: 100%;
}
.banner-box .title h1 .lines .line-1 {
  width: 67%;
  height: 10px;
  border-radius: 100px;
  background: #1ae96d;
  box-shadow: 0 2px 8px rgba(26, 233, 109, 0.5);
}
.banner-box .title h1 .lines .line-2 {
  width: 25%;
  height: 10px;
  border-radius: 100px;
  background: #09bef0;
  box-shadow: 0 0 4px rgba(9, 190, 240, 0.25);
}
.banner-box ul.function-list {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  width: min(1200px, 90%);
  margin-bottom: 8vh;
}
.banner-box ul.function-list li {
  flex: 1 1 300px;
  max-width: 373px;
  height: auto;
  padding: 30px;
  border-radius: 40px;
  background: #fff;
  box-shadow: 0 0 40px 8px rgba(0, 205, 119, 0.4);
  text-align: center;
}
.banner-box ul.function-list li img {
  width: clamp(48px, 6vw, 72px);
  height: clamp(48px, 6vw, 72px);
  margin-bottom: 26px;
}
.banner-box ul.function-list li h4 {
  color: #1d2129;
  font-size: clamp(20px, 3vw, 32px);
  font-weight: 700;
  margin-bottom: 4px;
}
.banner-box ul.function-list li p {
  color: #4e5969;
  font-size: clamp(14px, 2vw, 20px);
  font-weight: 400;
}
.banner-box .download-btn {
  width: clamp(260px, 40vw, 480px);
  height: clamp(60px, 10vh, 120px);
  border-radius: 100px;
  background: linear-gradient(90deg, #02d165 0%, #46e06e 100%);
  box-shadow: 0 10px 30px #28a84e;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
}
.banner-box .download-btn img {
  width: clamp(28px, 4vw, 50px);
  height: clamp(28px, 4vw, 50px);
}
.banner-box .download-btn span {
  color: #fff;
  font-size: clamp(18px, 3vw, 38px);
  font-weight: 700;
  line-height: 150%;
}

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