.header {
  width: 100%;
  height: 16rem;
  position: fixed;
  z-index: 100;
  transition: .3s;
}

@media(max-width:768px) {
  .header {
    height: 10rem;
    min-height: 70px;
    margin: 0;
    top: 0;
  }
}

.sub .header {
  background-color: #fff;
  height: 10rem;
}

.header.scroll {
  background-color: #fff;
  height: 10rem;
}

.header .common__inner {
  width: 90%;
  max-width: 1700px;
  height: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

@media(max-width:768px) {
  .header .common__inner {
    width: 100%;
  }

  .header__sp {
    background-color: #fff;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-left: 2.5%;
    z-index: 100;
    transition: .2s;
  }
}

.header__logo {
  display: block;
  width: 22.8rem;
  height: 7.4rem;
  margin-top: 3rem;
  transition: .3s;
}

@media(max-width:768px) {
  .header__logo {
    min-width: 160px;
    min-height: 41px;
    margin: 0;
  }
}

.sub .header__logo {
  margin: 0;
}

.header.scroll .header__logo {
  margin: 0;
}

@media(max-width:768px) {
  .header__hamburger-sp {
    width: 10rem;
    height: 10rem;
    min-width: 70px;
    min-height: 70px;
    display: flex;
    justify-content: center;
    position: relative;
  }

  .header__hamburger-sp .header__line-sp,
  .header__hamburger-sp::before,
  .header__hamburger-sp::after {
    content: "";
    background-color: #222;
    width: 5rem;
    min-width: 35px;
    height: 2px;
    border-radius: 5px;
    position: absolute;
    transition: .3s;
  }

  .header__hamburger-sp::before {
    top: 30%;
    transform-origin: top left;
  }

  .header__hamburger-sp::after {
    bottom: 30%;
    transform-origin: bottom left;
  }

  .header__hamburger-sp.transform::before,
  .header__hamburger-sp.transform::after {
    width: 55%;
  }

  .header__hamburger-sp.transform::before {
    transform: rotate(45deg);
  }

  .header__hamburger-sp.transform::after {
    transform: rotate(-45deg);
  }

  .header__line-sp {
    transform: translateY(-50%);
    top: 50%;
  }

  .header__hamburger-sp .header__line-sp.transform {
    transform: scale(0);
  }
}

.header__contents {
  display: flex;
  align-items: center;
}

@media(max-width:768px) {
  .header__contents {
    background-color: #fff;
    width: 100%;
    height: 100%;
    min-height: max-content;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: max(70px, 10rem) 0 0;
    position: fixed;
    top: 0;
    left: 0;
    transform: translateY(-100%);
    z-index: 50;
    overflow-y: scroll;
    transition: .3s ease-out;
  }

  .header__contents.show {
    transform: none;
  }
}

.header__nav {
  margin-right: 15rem;
}

@media(max-width:768px) {
  .header__nav {
    width: 100%;
    margin: 0 0 4rem;
  }
}

.header__nav-list {
  display: flex;
  column-gap: 3rem;
}

@media(max-width:1000px) {
  .header__nav-list {
    column-gap: 1.5rem;
  }
}

@media(max-width:850px) {
  .header__nav-list {
    column-gap: .5rem;
  }
}

@media(max-width:768px) {
  .header__nav-list {
    flex-direction: column;
  }
}

.header__nav-item {
  font-family: 'Zen Old Mincho', serif;
  font-size: max(12px, 1.5rem);
  font-weight: 700;
  letter-spacing: .1em;
  text-align: center;
  white-space: nowrap;
  position: relative;
  transition: .3s;
}

@media(min-width:769px) {
  .header__nav-item:hover {
    color: #006ab8;
  }
}

@media(max-width:768px) {
  .header__nav-item {
    width: 100%;
    font-size: max(16px, 2.4rem);
    text-align: left;
    border-bottom: solid 1px #006ab8;
    padding: 0;
    margin-right: 0;
  }
  .header__nav-item:first-of-type {
    border-top: solid 1px #006ab8;
  }
}

.header__nav-item a {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 4rem 1rem;
}

@media(max-width:768px) {
  .header__nav-item a {
    display: inline-block;
    width: 100%;
    padding: 3rem;
  }
}

@media(max-width:768px) {
  .header__nav-item a {
    display: inline-block;
    width: 100%;
    padding: 3rem;
  }
}

.header__btn.sp {
  display: none;
}

@media(max-width:768px) {
  .header__btn.sp {
    display: grid;
  }
}

.header__btn {
  background-image: url("../../images/news_ttl_bg.jpg");
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  width: 20rem;
  height: 10rem;
  border-radius: 0 0 0 10px;
  font-family: 'EB Garamond', serif;
  font-size: max(20px, 3rem);
  letter-spacing: .1em;
  color: #fff;
  display: grid;
  place-content: center;
  position: absolute;
  top: 0;
  right: 0;
}

@media(min-width:769px) {
  .header__btn:hover {
    opacity: .9;
  }
}

@media(max-width:768px) {
  .header__btn {
    width: 40rem;
    min-height: 50px;
    border-radius: 10px;
    font-size: max(20px, 3rem);
    position: static;
  }
}