.one {
  width: 100%;
  position: relative;
  margin-bottom: 87px;
}
.one:last-child {
  margin-bottom: 0;
}
.one img {
  width: 100%;
}
.nav {
  position: absolute;
  top: 50px;
  right: 90px;
  display: flex;
  align-items: center;
}
.nav > div {
  padding: 0 30px;
  cursor: pointer;
}
.nav > div a {
  font-size: 16px;
  color: #ffffff;
}
.nav > div:hover a {
  text-decoration: underline;
}
.nav .login-btn {
  width: 90px;
  margin-right: 30px;
}
.nav .long-btn {
  width: 130px;
}
.nav .login-btn,
.long-btn {
  cursor: pointer;
}