.subhead {
  position: relative;
  width: 100%;
  height: 250px;
  overflow: hidden;
}

.subhead > img {
  width: 100%;
  height: auto;
}

.subhead > .textBox {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #fff;
}

.subCentainner > nav {
  width: 100%;
  border-bottom: 1px solid #dbdbdb;
}

.subCentainner > nav > ul {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 100px;
}

.subCentainner > nav > ul > li {
  padding: 20px 0;
}

.subCentainner > nav > ul > li.active {
  border-bottom: 2px solid var(--main-color);
}

.subCentainner > nav > ul > li > a {
  font-size: 1.3rem;
}

.subCentainner > nav > ul > li.active > a {
  font-weight: bold;
  color: var(--main-color);
}

@media screen and (max-width: 821px) {
  .subhead {
    height: 170px;
  }
  .subCentainner > nav > ul {
    gap: 70px;
  }
}

@media screen and (max-width: 640px) {
  .subCentainner > nav > ul {
    gap: 25px;
  }

  .subCentainner > nav > ul > li {
    text-align: center;
  }

  .subCentainner > nav > ul > li > a {
    font-size: 1rem;
  }
}