header.masthead .bg-circle {
  z-index: 0;
  position: absolute;
  border-radius: 100%;
  background: linear-gradient(0deg, #000000 0%, rgba(0,0,0,0.59) 100%);
}

header.masthead {
  position: relative;
  overflow: hidden;
  padding-top: calc(7rem + 72px);
  padding-bottom: 7rem;
  background: linear-gradient(0deg, #000000 0%, #222222 100%);
  background-repeat: no-repeat;
  background-position: center center;
  background-attachment: scroll;
  background-size: cover;
}

.bg-dark {
  background-color: rgb(0,0,0) !important;
}

.p-5 {
  padding: 1rem !important;
}

a {
  color: var(--bs-gray);
  text-decoration: initial;
}

body {
  font-family: 楷体;
  font-weight: bold;
}