@media (min-width: 1121px) {
  .part-header__nav-list-item:hover ul {
    display: block;
  }

  .part-header__nav-list-item > ul li:first-child {
    border-top-left-radius: 0.6rem;
    border-top-right-radius: 0.6rem;

    padding-top: 0.6rem;
  }

  .part-header__nav-list-item > ul li:last-child {
    border-bottom-left-radius: 0.6rem;
    border-bottom-right-radius: 0.6rem;
    padding-bottom: 0.6rem;
  }

  .part-header__nav-list-item--accordion:hover::before {
    transform: rotate(135deg);
    top: 0.7rem;
    border-left: 1px solid #3464f9;
    border-bottom: 1px solid #3464f9;
  }
  .part-header__nav-list-item--accordion:hover
    .part-header__ui-button.ui-button {
    color: #3464f9;
  }
}

.part-header.is-scrolled .part-header__nav-list-item > ul {
  padding-top: 3.425rem;
}

.part-header__nav-list-item {
  position: relative;
}

.part-header__nav-list-item > ul {
  display: none;

  position: absolute;
  left: 0;
  top: 100%;
  padding-top: 1.125rem;
}

.part-header__nav-list-item > ul li {
  font-size: 1.6rem;
  font-weight: 500;
  line-height: 1.2;
  color: #01133c;
  text-transform: uppercase;
  background-color: #fff;
  padding-left: 0.6rem;
  padding-right: 0.6rem;
}

.part-header__nav-list-item > ul li a:hover {
  color: #3464f9;
}

.part-header__nav-list-item > ul li + li {
  padding-top: 0.5rem;
}

.part-header__nav-list-item--accordion {
  position: relative;
}

.part-header__nav-list-item--accordion::before {
  content: "";
  display: block;
  position: absolute;
  left: calc(100% + 6px);
  top: 0.5rem;

  width: 4px;
  height: 4px;
  border-left: 1px solid #fff;
  border-bottom: 1px solid #fff;
  transform: rotate(-45deg);

  transition: transform 0.2s ease;
}

.part-header__nav-list-item--accordion .part-header__ui-button {
  cursor: pointer;
}

@media (max-width: 1120px) {
  .part-header__nav-list-item--accordion::before {
    top: 3px;
  }

  .part-header__nav-list-item--accordion.open::before {
    transform: rotateX(180deg) rotate(-45deg);
    top: 5px;

    border-left: 1px solid #3464f9;
    border-bottom: 1px solid #3464f9;
  }

  .part-header__nav-list-item.open > ul {
    display: block;
    padding-top: 6px;
  }

  .part-header__nav-list-item.open > .part-header__ui-button {
    color: #3464f9;
  }

  .part-header__nav-list-item > ul {
    position: static;
  }

  .part-header__nav-list-item > ul li {
    background-color: transparent;
    padding: 0;
    color: #fff;
  }

  .part-header__nav-list-item > ul li + li {
    padding-top: 6px;
  }
}

@media (max-width: 580px) {
  .part-header__nav-list-item--accordion::before {
    top: 5px;
  }

  .part-header__nav-list-item--accordion.open::before {
    top: 7px;
  }

  .part-header__nav-list-item > ul li + li {
    padding-top: 8px;
  }
}

@media (max-width: 440px) {
  .part-header__nav-list-item--accordion::before {
    top: 0.4rem;
    width: 0.5rem;
    height: 0.5rem;
  }

  .part-header__nav-list-item--accordion.open::before {
    top: 0.6rem;
  }
}