body,
html {
  padding: 0;
  margin: 0;
}

.nav {
  height: 8vh;
  background: white;
}

.logo {
  display: inline-block;
  width: 339px;
  height: 8vh;
  margin-left: 110px;
  margin-right: 100px;
  background: url('logo.png') no-repeat center/contain;
  vertical-align: middle;
}

.nav-link {
  height: 60px;
  margin-right: 50px;
  font-size: 18px;
  font-weight: 600;
  line-height: 60px;
  text-shadow: 5px 6px 4px #ccc;
  vertical-align: middle;
  text-decoration: none;
  color: #000;
}

.content {
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  width: 100%;
  height: calc(100vh - 18vh);
  background: url(./bg.jpg) no-repeat center/cover;
}

.content::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url(./shadow.png) no-repeat center/cover;
}

.footer {
  width: 100%;
  height: 10vh;
  position: fixed;
  bottom: 0;
  left: 0;
  background-color: #fff;
}

.copyright {
  text-align: center;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 2vh;
  color: #333;
  line-height: 150%;
  background: white;
  word-break: break-word;
  width: 90%;
  margin: 0;
}

.scroll-box {
  overflow-y: scroll !important;
}

.scroll-box::webkit-scrollbar-track {
  background-color: black;
}

.scroll-box::-webkit-scrollbar-track-piece {
  background-color: rgba(0, 0, 0, 0);
  border-left: 1px solid rgba(0, 0, 0, 0);
}

.scroll-box::-webkit-scrollbar {
  width: 8px;
  max-height: 630px;
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  border-radius: 5px;
}

.scroll-box::-webkit-scrollbar-thumb {
  background-color: rgba(0, 0, 0, 0.5);
  background-clip: padding-box;
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  border-radius: 5px;
  min-height: 28px;
}