.main-sec {
  position: relative;
  height: 100vh;
}

.main-sec>div {
  height: 100%;
}

.main-sec>div.img-box {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.main-sec>div.img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.main-sec>div.img-box img.pc-visual {
  display: block;
}

.main-sec>div.img-box img.mo-visual {
  display: none;
}

@media screen and (max-width:768px) {
  .main-sec>div.img-box img.pc-visual {
    display: none;
  }

  .main-sec>div.img-box img.mo-visual {
    display: block;
  }

}


.text-box-title {
  position: absolute;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
}

.text-box-title p {
  color: var(--white);
  font-size: 5rem;
  font-weight: 700;
  line-height: 130%;
  letter-spacing: -3.2px;
}

@media screen and (max-width:1000px) {
  .text-box-title p {
    font-size: 4.5rem;
    letter-spacing: -2.88px;
  }
}

@media screen and (max-width:768px) {
  .text-box-title p {
    font-size: 4rem;
  }
}

@media screen and (max-width:680px) {
  .text-box-title p {
    font-size: 2.5rem;
  }
}