.footer {
  background: radial-gradient(circle, rgb(255, 248, 232) 0%, rgb(255, 230, 192) 100%);
  color: #363636;
  font-family: "Inter";
  padding: 20px 10px;
  position: relative;
  z-index: 1;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: row;
  justify-content: flex-start;
}

.footer-column h4 {
  font-size: clamp(16px, 3vw, 20px);
  font-family: "Inter";
  font-style: italic;
  margin-bottom: 5%;
  font-weight: bold;
  color: #222;
}

.footer-column ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-column ul li,
.office-column p {
  margin-bottom: 8px;
}

.footer-column ul li a,
.office-column {
  font-size: clamp(12px, 2vw, 14px);
  text-decoration: none;
  color: #1a1a1a;
  transition: color 0.2s;
  position: relative;
}

.footer-column ul li a::after {
  content: "";
  display: block;
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 0;
  height: 2px;
  background: #b54f01;
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);

}

.footer-column ul li a:hover {
  color: #b54f01;
  transform: translateY(-1px);
  transition: all 0.1s ease-in-out;
}

.footer-column ul li a:hover::after {
  width: 100%;
}

.logo-column {
  text-align: center;
  min-width: 30%;
  margin: auto 0;
}

.footer-logo {
  min-width: 80px;
  width: 30%;
  margin-bottom: 10px;
}

.footer-right-flex {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  flex: 1;
  margin: 0 5%;
}


.copyright {
  text-align: center;
  font-size: 14px;
}


.logo-column p {
  font-size: 0.85rem;
  color: #666;
}

.back-to-top {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 10;
}

.back-to-top a {
  display: inline-block;
  background-color: #b54f01;
  color: white;
  padding: 10px 14px;
  border-radius: 50%;
  text-decoration: none;
  font-size: 1.2rem;
}

.SP {
  display: none;
}

@media screen and (max-width: 768px) {

  .PC {
    display: none;
  }

  .SP {
    display: block;
  }

  .footer-container {
    flex-direction: column;
  }

  .footer-logo {
    width: 25%;
  }

  .footer-right-flex {
    display: none;
  }
}