/* フッター全体: 背景と余白 */
.site-footer {
  background: var(--brand-gray-dark);
  color: var(--brand-white);
  border-radius: 28px 28px 0 0;
  padding: 60px 0 40px;
  margin-top: 80px;
  position: relative;
}

/* フッター: コンテナ内で上部ボタンの位置基準を持つ */
.site-footer .container {
  position: relative;
}

/* フッター: 上部へ戻るボタン */
.site-footer .footer-toplink {
  position: absolute;
  top: 0;
  right: 24px;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--brand-white);
  display: block;
}

/* フッター: 上部へ戻るボタンの山型アイコン */
.site-footer .footer-toplink::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 18px;
  height: 12px;
  background: var(--brand-white);
  transform: translate(-50%, -50%);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 18 12'%3E%3Cpath d='M1.5 10.5L9 3l7.5 7.5' fill='none' stroke='%23000' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") no-repeat center / contain;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 18 12'%3E%3Cpath d='M1.5 10.5L9 3l7.5 7.5' fill='none' stroke='%23000' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") no-repeat center / contain;
}

/* フッター上段: モバイルは1列 */
.site-footer .footer-top {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

/* フッター: ブランドロゴ */
.site-footer .footer-brand-logo {
  display: inline-block;
  margin: 0 0 36px;
}

/* フッター: ブランドロゴ画像 */
.site-footer .footer-brand-logo img {
  width: 181px;
  max-width: none;
  height: auto;
  display: block;
}

/* フッター: 連絡先の補足テキスト */
.site-footer .footer-contact {
  font-size: 12px;
  color: var(--brand-white);
  margin-bottom: 49px;
}

/* フッター: 連絡文の上段 */
.site-footer .footer-contact-note {
  font-size: 13px;
}

/* フッター: メール行はアイコン付きで横並び */
.site-footer .footer-contact-mail {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* フッター: メールアイコン */
.site-footer .footer-contact-mail-icon {
  width: 24px;
  height: 24px;
  display: block;
  flex-shrink: 0;
  background-color: currentColor;
  mask: url("./mail.svg") no-repeat center / contain;
  -webkit-mask: url("./mail.svg") no-repeat center / contain;
}

/* フッター: メールアドレス文字 */
.site-footer .footer-contact-mail-text {
  font-size: 15px;
}

/* フッター: CTAボタンの縦並び */
.site-footer .footer-buttons {
  display: flex;
  flex-direction: column;
  gap: 24px;
  max-width: 270px;
  margin: 0 auto;
}

.site-footer .footer-buttons .btn-outline {
  width: 100%;
  justify-content: center;
  border-color: var(--brand-white);
}

/* フッター: 各アコーディオンセクション */
.site-footer .footer-links {
  margin-top: 58px;
}

.site-footer .footer-accordion {
  border-top: 1px solid var(--brand-gray);
}

.site-footer .footer-articles .footer-accordion:last-child {
  border-bottom: 1px solid var(--brand-gray);
}

.site-footer .footer-accordion__toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 0;
  border: none;
  background: transparent;
  color: var(--brand-white);
  font-family: var(--font-gothic);
  text-align: left;
  cursor: pointer;
}

.site-footer .footer-accordion__toggle--static {
  justify-content: flex-start;
  cursor: default;
}

.site-footer .footer-accordion__title {
  font-size: 15px;
  font-weight: var(--weight-gothic-bold);
  line-height: 1.5;
}

.site-footer .footer-accordion__icon {
  position: relative;
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

.site-footer .footer-accordion__icon::before,
.site-footer .footer-accordion__icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--brand-white);
  transform: translate(-50%, -50%);
  transition: opacity 0.2s ease;
}

.site-footer .footer-accordion__icon::before {
  width: 18px;
  height: 1px;
}

.site-footer .footer-accordion__icon::after {
  width: 1px;
  height: 18px;
}

.site-footer .footer-accordion[data-expanded="true"] .footer-accordion__icon::after {
  opacity: 0;
}

.site-footer .footer-accordion__panel {
  display: grid;
  grid-template-rows: 0fr;
  padding: 0;
  transition: grid-template-rows 0.28s ease, padding-bottom 0.28s ease;
}

.site-footer .footer-accordion__panel-inner {
  min-height: 0;
  overflow: hidden;
  padding-left: 15px;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity 0.22s ease, transform 0.28s ease;
}

.site-footer .footer-accordion[data-expanded="true"] .footer-accordion__panel {
  grid-template-rows: 1fr;
  padding: 0 0 25px;
}

.site-footer .footer-accordion--static .footer-accordion__panel {
  grid-template-rows: 1fr;
  padding: 0 0 25px;
}

.site-footer .footer-accordion[data-expanded="true"] .footer-accordion__panel-inner {
  opacity: 1;
  transform: translateY(0);
}

.site-footer .footer-accordion--static .footer-accordion__panel-inner {
  opacity: 1;
  transform: translateY(0);
}

.site-footer .footer-links-columns {
  width: 100%;
}

.site-footer .footer-service-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 20px;
  row-gap: 14px;
  font-size: 13px;
  color: var(--brand-white);
}

.site-footer .footer-service-list li {
  min-width: 0;
}

.site-footer .footer-service-link,
.site-footer .footer-service-text {
  display: block;
  font-weight: var(--weight-gothic-medium);
}

.site-footer .footer-articles {
  margin-top: 0;
  display: block;
  font-size: 15px;
  color: var(--brand-white);
}

.site-footer .footer-article-link {
  display: block;
  margin: 0 0 12px;
  color: var(--brand-white);
  font-size: 13px;
  line-height: 1.8;
  font-weight: var(--weight-gothic-medium);
}

.site-footer .footer-article-link:last-child {
  margin-bottom: 0;
}

/* フッター下段: コピーライト/補足 */
.site-footer .footer-bottom {
  margin-top: 52px;
  text-align: left;
  font-size: 11px;
  color: var(--brand-gray);
}

.site-footer .footer-links-inline {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  font-size: 12px;
  margin-bottom: 40px;
}

.site-footer .footer-links-inline a {
  font-weight: var(--weight-gothic-medium);
}

.site-footer .footer-social {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-bottom: 26px;
}

.site-footer .footer-social-item {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.site-footer .footer-social-item img {
  width: auto;
  height: 24px;
  display: block;
}

.site-footer .footer-copy {
  text-align: center;
}

@media (min-width: 768px) {
  .site-footer .footer-brand-logo img {
    width: 241px;
  }

  .site-footer .footer-top {
    grid-template-columns: 1.2fr 2fr;
    gap: 40px;
  }

  .site-footer .footer-contact {
    color: var(--brand-gray);
    margin-bottom: 59px;
  }

  .site-footer .footer-buttons {
    margin: 0;
  }

  .site-footer .footer-links {
    margin-top: 144px;
  }

  .site-footer .footer-accordion {
    border-top: none;
  }

  .site-footer .footer-articles .footer-accordion:last-child {
    border-bottom: none;
  }

  .site-footer .footer-accordion__toggle {
    padding: 0 0 28px;
    border-bottom: 1px solid var(--brand-gray);
    cursor: default;
  }

  .site-footer .footer-accordion__icon {
    display: none;
  }

  .site-footer .footer-accordion__title {
    font-size: 16px;
    font-weight: var(--weight-gothic-medium);
  }

  .site-footer .footer-accordion__panel,
  .site-footer .footer-accordion[data-expanded="true"] .footer-accordion__panel {
    grid-template-rows: 1fr;
    padding: 28px 0 0;
  }

  .site-footer .footer-accordion--static .footer-accordion__panel {
    padding: 28px 0 0;
  }

  .site-footer .footer-accordion__panel-inner,
  .site-footer .footer-accordion[data-expanded="true"] .footer-accordion__panel-inner {
    padding-left: 0;
    opacity: 1;
    transform: translateY(0);
  }

  .site-footer .footer-service-list {
    grid-template-columns: repeat(2, minmax(150px, 1fr));
    column-gap: 20px;
    row-gap: 8px;
    font-size: 14px;
    line-height: 3;
    color: var(--brand-gray);
  }

  .site-footer .footer-service-link,
  .site-footer .footer-service-text,
  .site-footer .footer-article-link {
    font-size: 14px;
    font-weight: var(--weight-gothic-regular);
  }

  .site-footer .footer-articles {
    margin-top: 100px;
    display: grid;
    grid-template-columns: repeat(2, minmax(220px, 1fr));
    gap: 80px;
    font-size: 11px;
    color: var(--brand-gray);
  }

  .site-footer .footer-article-link {
    margin-bottom: 6px;
    color: var(--brand-gray);
    line-height: 1.6;
  }

  .site-footer .footer-bottom {
    margin-top: 150px;
    text-align: center;
  }

  .site-footer .footer-links-inline {
    justify-content: center;
    align-items: center;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 13px;
    margin-bottom: 16px;
  }

  .site-footer .footer-links-inline a {
    font-weight: var(--weight-gothic-regular);
  }

  .site-footer .footer-social {
    gap: 12px;
    margin-bottom: 50px;
  }
}