/* PC、スマホ共通スタイル */
body {
  background-color: #ff9500;
    max-width: flex;
     font-family: "Source Sans Pro", "Hiragino Kaku Gothic ProN", Meiryo, Arial, sans-serif;
  }
  
  /* ヘッダー */
  header {
    display: flex;
    justify-content: space-between;
  }

  /* ヘッダータイトル */
   h1 {
    margin-right: 250px;
     font-size: 50px;
     color: #ffffff;
   }

  /* ハンバーガーメニュー */
  /* overlay-styles.css */
.hamburger-overlay {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 1000;
  width: 48px;
  height: 48px;
  border: none;
  background: transparent;
  cursor: pointer;
}

.hamburger-overlay__line {
  position: absolute;
  left: 11px;
  width: 26px;
  height: 2px;
  background-color: #333;
  transition: all .6s;
}

.hamburger-overlay__line:nth-of-type(1) { top: 14px; }
.hamburger-overlay__line:nth-of-type(2) { top: 23px; }
.hamburger-overlay__line:nth-of-type(3) { top: 32px; }

.hamburger-overlay.active .hamburger-overlay__line {
  background-color: #fff;
}

.hamburger-overlay.active .hamburger-overlay__line:nth-of-type(1) {
  transform: translateY(9px) rotate(-45deg);
}
.hamburger-overlay.active .hamburger-overlay__line:nth-of-type(2) {
  opacity: 0;
}
.hamburger-overlay.active .hamburger-overlay__line:nth-of-type(3) {
  transform: translateY(-9px) rotate(45deg);
}

.nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.95);
  visibility: hidden;
  opacity: 0;
  transition: all .6s;
  z-index: 900;
}

.nav-overlay.active {
  visibility: visible;
  opacity: 1;
}

.nav-overlay__content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  text-align: center;
}

.nav-overlay__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-overlay__item {
  opacity: 0;
  transform: translateY(20px);
  transition: all .6s;
}

.nav-overlay.active .nav-overlay__item {
  opacity: 1;
  transform: translateY(0);
}

.nav-overlay.active .nav-overlay__item:nth-child(1) { transition-delay: 0.1s; }
.nav-overlay.active .nav-overlay__item:nth-child(2) { transition-delay: 0.2s; }
.nav-overlay.active .nav-overlay__item:nth-child(3) { transition-delay: 0.3s; }
.nav-overlay.active .nav-overlay__item:nth-child(4) { transition-delay: 0.4s; }

.nav-overlay__link {
  display: inline-block;
  padding: 20px;
  color: #fff;
  font-size: 24px;
  text-decoration: none;
  transition: color .3s;
}

.nav-overlay__link:hover {
  color: #4a90e2;
}
  
  /*メインビジュアル */
  #main-visua img {
    width: 100%;
    height: auto;
  }

  /* フッター */
  footer {
    text-align: center;
    padding: 30px 80px 30px 80px;
  }
  #footer-logo {
    margin-bottom: 30px;
    padding-right: 40px;
  }

  #footer-link {
    margin-bottom: 50px;
    padding-right: 20px;
  }

  #footer-link > a{
    text-decoration: none;
    margin: 10px;
    color: #ffffff;
    font-size: 30px;
  }

  #footer-link > a:hover {
    text-decoration: underline;
  }

  #copyright {
    color: #ffffff;
    margin: 0;
    text-align: right;
  }

   /*====================
  スマートフォン用のスタイル
 =====================*/
 @media screen and (max-width: 767px) {
  /* PC用ナビゲーション非表示 */
  #nav-pc {
    display: none;
  }

  /* ハンバーガーメニュー */
 /* overlay-styles.css */
.hamburger-overlay {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 1000;
  width: 48px;
  height: 48px;
  border: none;
  background: transparent;
  cursor: pointer;
}

.hamburger-overlay__line {
  position: absolute;
  left: 11px;
  width: 26px;
  height: 2px;
  background-color: #333;
  transition: all .6s;
}

.hamburger-overlay__line:nth-of-type(1) { top: 14px; }
.hamburger-overlay__line:nth-of-type(2) { top: 23px; }
.hamburger-overlay__line:nth-of-type(3) { top: 32px; }

.hamburger-overlay.active .hamburger-overlay__line {
  background-color: #fff;
}

.hamburger-overlay.active .hamburger-overlay__line:nth-of-type(1) {
  transform: translateY(9px) rotate(-45deg);
}
.hamburger-overlay.active .hamburger-overlay__line:nth-of-type(2) {
  opacity: 0;
}
.hamburger-overlay.active .hamburger-overlay__line:nth-of-type(3) {
  transform: translateY(-9px) rotate(45deg);
}

.nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.95);
  visibility: hidden;
  opacity: 0;
  transition: all .6s;
  z-index: 900;
}

.nav-overlay.active {
  visibility: visible;
  opacity: 1;
}

.nav-overlay__content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  text-align: center;
}

.nav-overlay__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-overlay__item {
  opacity: 0;
  transform: translateY(20px);
  transition: all .6s;
}

.nav-overlay.active .nav-overlay__item {
  opacity: 1;
  transform: translateY(0);
}

.nav-overlay.active .nav-overlay__item:nth-child(1) { transition-delay: 0.1s; }
.nav-overlay.active .nav-overlay__item:nth-child(2) { transition-delay: 0.2s; }
.nav-overlay.active .nav-overlay__item:nth-child(3) { transition-delay: 0.3s; }
.nav-overlay.active .nav-overlay__item:nth-child(4) { transition-delay: 0.4s; }

.nav-overlay__link {
  display: inline-block;
  padding: 20px;
  color: #fff;
  font-size: 24px;
  text-decoration: none;
  transition: color .3s;
}

.nav-overlay__link:hover {
  color: #4a90e2;
}

/* メインビジュアル */
#main-visual > img {
  width: 100%;
  top: auto;
  bottom: 0;
}
  }