.btn-hover{
    font-weight: 500;
}

.btn-hover:hover{
    background-color: black;
    color: #E9E9E9;
    transition: all 0.3s ease;
}

/* 白とグレーのグラデーション背景（34/400 = 8.5%） */
.has-top-white-bg {
    background: linear-gradient(
      to bottom,
      white 0%,
      white 8.5%,
      #D0D0D2 8.5%,
      #D0D0D2 100%
    );
  }