.scroll-to-top-btn {
    position: fixed;
    bottom: 20px;
    right: 110px; /* Изменено: теперь кнопка отстоит на 110px от правого края */
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: #333;
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  }

  .scroll-to-top-btn:hover {
    background-color: #555;
    transform: translateY(-2px);
  }

  .scroll-to-top-btn.show {
    opacity: 1;
    visibility: visible;
  }