@charset "UTF-8";
html {
  font-size: 12px;
  scroll-behavior: smooth;
}

@media screen and (max-width: 1400px) {
  html {
    font-size: 10px;
  }
}
body {
  font-size: 1.6rem;
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 400;
  background-color: #FFF;
}

nav {
  font-family: "Oswald", sans-serif;
  font-weight: 700;
}

.inner {
  width: 96%;
  max-width: 1920px;
  margin: 0 auto;
}

header {
  height: 140px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  position: relative;
}

header h1 {
  position: relative;
  width: 42%;
}
header h1 img {
  width: 100%;
  max-width: 423px;
}

@media screen and (max-width: 768px) {
  header {
    height: 60px;
  }
  header .inner {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: justify;
        -ms-flex-pack: justify;
            justify-content: space-between;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
  }
  header h1 {
    width: 60%;
  }
}
nav {
  position: fixed;
  right: 0;
  top: 0;
  width: 70%;
  mix-blend-mode: exclusion;
  z-index: 256;
}

nav ul {
  height: 140px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  -webkit-box-pack: end;
  -ms-flex-pack: end;
  justify-content: flex-end;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
}

nav ul li {
  margin-left: 5em;
}

nav ul li a {
  font-size: 20px;
  color: #FFF;
  position: relative;
}

nav ul li a::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 2px;
  width: 0%;
  background-color: #FFF;
  -webkit-transition: 300ms ease-in-out;
  transition: 300ms ease-in-out;
}

nav ul li a:hover::before {
  width: 100%;
}

@media screen and (max-width: 768px) {
  header {
    position: fixed;
    z-index: 200;
    background-color: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
    width: 100%;
  }
  nav {
    position: absolute;
    top: 60px;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    mix-blend-mode: normal;
    width: 40%;
    height: 100svh;
    left: auto;
    right: 0;
    z-index: 1000;
    -webkit-transform: translate3d(100%, 0, 0);
            transform: translate3d(100%, 0, 0);
    -webkit-transition: 500ms ease-out;
    transition: 500ms ease-out;
  }
  nav ul {
    display: block;
    height: auto;
    width: 100%;
    padding: 30px 0;
  }
  nav ul li {
    width: 90%;
    margin: 0 auto;
    margin-top: 10px;
    text-align: right;
    padding-bottom: 6px;
  }
  nav.active {
    -webkit-transform: translate3d(0%, 0, 0);
            transform: translate3d(0%, 0, 0);
    -webkit-transition: 500ms ease-in;
    transition: 500ms ease-in;
  }
  main {
    padding-top: 60px;
  }
}
.hamburger {
  width: 30px;
  height: 20px;
  position: relative;
}

.hamburger span {
  position: absolute;
  width: 100%;
  height: 2px;
  background-color: #00488d;
}

.hamburger span:first-of-type {
  /* ハンバーガーメニューの1番目の線 */
  top: 0;
}

.hamburger span:nth-of-type(2) {
  /* ハンバーガーメニューの2番目の線 */
  top: 50%;
}

.hamburger span:last-of-type {
  /* ハンバーガーメニューの3番目の線 */
  top: 100%;
}

/* ここから下を追記 */
.hamburger.active span:first-of-type {
  /* ハンバーガーメニューの1番目の線 */
  top: 50%;
  -webkit-transform: rotate(45deg);
          transform: rotate(45deg);
}

.hamburger.active span:nth-of-type(2) {
  /* ハンバーガーメニューの2番目の線 */
  opacity: 0;
  /* 透明にする */
}

.hamburger.active span:last-of-type {
  /* ハンバーガーメニューの3番目の線 */
  top: 50%;
  -webkit-transform: rotate(-45deg);
          transform: rotate(-45deg);
}

#news_section a {
  color: #FFF !important;
  text-decoration: underline !important;
}