* {
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
}

body {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: auto;
}

a {
  text-decoration: none !important;
}

/* 非首页项目使用的头部背景图样式 */
.background-img-box {
  position: relative;
	display: flex;
	justify-content: center;
}

.background-img-box > .core-product-img {
  width: 119.0625rem;
  height: 27.5rem;
}

.background-img-box > .background-head-title {
  position: absolute;
  bottom: 8.75rem;
  left: 50%;
  transform: translate(-50%, 0);
  font-family: "Medium";
  font-weight: 500;
  font-size: 5rem;
  color: #FFFFFF;
}

.body-box {
  position: relative;
}

.to-up {
  position: fixed;
  right: 1.5rem;
  bottom: calc(100vh / 4);
  display: flex;
  justify-content: center;
  align-items: center;
  width: 3rem;
  height: 3rem;
	visibility: hidden;
  background-color: rgba(0, 0, 0, 0.6);
}

.to-up:hover {
  cursor: pointer;
	background-color: #1677FF;
}