.site-footer {
  background: #0f172b;
  color: rgba(255, 255, 255, 0.9);
  padding: 40px 0 24px;
}

.site-footer__inner {
  width: min(1560px, calc(100% - 72px));
  margin: 0 auto;
}

.site-footer__brandRow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  margin-bottom: 56px;
}

.site-footer__logo {
  flex: 0 0 auto;
  display: block;
}

.site-footer__logo img {
  display: block;
  width: 130px;
  height: 130px;
}

.site-footer__lead {
  margin: 0;
  color: rgba(255, 255, 255, 0.9);
  font-size: 23px;
  line-height: 1.9;
  letter-spacing: 0.03em;
  text-align: left;
}

.site-footer__main {
  display: grid;
  grid-template-columns: 460px minmax(0, 1fr);
  column-gap: 80px;
  align-items: start;
  width: fit-content;
  margin: 0 auto;
}

.site-footer__companyName {
  margin: 0 0 30px;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.6;
  word-break: keep-all;
}

.site-footer__companyText {
  margin: 0 0 18px;
  font-size: 20px;
  font-weight: 600;
  line-height: 1.9;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.9);
  word-break: keep-all;
}

.site-footer__nav {
  display: grid;
  gap: 28px;
}

.site-footer__group {
  display: grid;
  grid-template-columns: 140px 110px 1fr;
  gap: 20px;
  align-items: start;
}

.site-footer__groupLeft {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.18em;
  line-height: 1.4;
  white-space: nowrap;
}

.site-footer__groupRule {
  height: 1px;
  background: rgba(255, 255, 255, 0.3);
  margin-top: 14px;
}

.site-footer__groupRight {
  display: grid;
  grid-template-columns: repeat(4, max-content);
  gap: 10px 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-footer__groupRight a {
  color: rgba(255, 255, 255, 0.78);
  text-decoration: none;
  font-size: 20px;
  font-weight: 400;
  line-height: 1.8;
  letter-spacing: 0.03em;
  transition: color 0.2s ease;
}

.site-footer__groupRight a:hover {
  color: #fff;
}

.site-footer__bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: 48px;
}

.site-footer__sns {
  display: flex;
  gap: 48px;
  margin-bottom: 24px;
  justify-content: center;
}

.site-footer__sns a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  perspective: 800px;
}

.site-footer__sns img {
  display: block;
  height: 30px;
  width: auto;
  transform-style: preserve-3d;
  backface-visibility: visible;
}

.site-footer__sns a:nth-child(3) img {
  height: 45px;
}

.site-footer__sns a:hover img {
  animation: snsFlip 0.8s linear infinite;
}

@keyframes snsFlip {
  0% {
    transform: rotateY(0deg);
  }

  100% {
    transform: rotateY(360deg);
  }
}

.site-footer__copy {
  margin: 0;
  text-align: center;
  color: rgba(255, 255, 255, 0.86);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.18em;
  line-height: 1.6;
}

.site-footer__toggle {
  appearance: none;
  -webkit-appearance: none;
  border: 0;
  background: transparent;
  padding: 0;
  margin: 0;
  font: inherit;
  color: inherit;
  text-align: inherit;
}

.site-footer__logo--sp {
  display: none;
}

.site-footer__plus {
  display: none;
}

@media (max-width: 767px) {
  .site-footer {
    padding: 20px 0 34px;
  }

  .site-footer__inner {
    width: calc(100% - 40px);
  }

  .site-footer__brandRow {
    display: none;
  }

  .site-footer__main {
    display: block;
    width: 100%;
    margin: 0;
  }

  .site-footer__company {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    column-gap: 14px;
    row-gap: 0;
    margin-bottom: 34px;
  }

  .site-footer__logo--sp {
    display: block;
    margin: 0;
    flex: 0 0 auto;
  }

  .site-footer__logo--sp img {
    width: 76px;
    height: auto;
    display: block;
  }

  .site-footer__companyName {
    margin: 0;
    font-size: 16px;
    line-height: 1.35;
  }

  .site-footer__companyText {
    width: 100%;
    margin: 10px 0 0;
    font-size: 14px;
    line-height: 1.75;
  }

  .site-footer__companyText:last-child {
    margin-bottom: 0;
  }

  .site-footer__nav {
    display: block;
  }

  .site-footer__group {
    display: block;
    margin: 0 0 12px;
  }

  .site-footer__groupRule {
    display: none;
  }

  .site-footer__toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: calc(100% - 30px);
    margin: 0 auto;
    padding: 0 0 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.16);
    cursor: pointer;
  }

  .site-footer__groupLeft {
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.22em;
    line-height: 1.4;
    white-space: nowrap;
  }

  .site-footer__plus {
    display: inline-block;
    font-size: 26px;
    font-weight: 300;
    line-height: 1;
    transition: transform 0.25s ease;
  }

  .site-footer__groupRight {
    display: none;
    grid-template-columns: 1fr;
    gap: 0;
    width: calc(100% - 22px);
    margin: 10px auto 0;
    padding: 0 0 4px;
  }

  .site-footer__group.is-open .site-footer__groupRight {
    display: grid;
  }

  .site-footer__group.is-open .site-footer__plus {
    transform: rotate(45deg);
  }

  .site-footer__groupRight li {
    margin: 0;
  }

  .site-footer__groupRight a {
    display: block;
    padding: 6px 0;
    font-size: 13px;
    line-height: 1.7;
    letter-spacing: 0.05em;
  }

  .site-footer__bottom {
    margin-top: 22px;
    align-items: center;
  }

  .site-footer__sns {
    gap: 24px;
    margin-bottom: 16px;
  }

  .site-footer__sns img {
    height: 30px;
  }

  .site-footer__sns a:nth-child(3) img {
    height: 38px;
  }

  .site-footer__copy {
    font-size: 10px;
    line-height: 1.7;
    letter-spacing: 0.14em;
    text-align: center;
  }
}