body {
    background-color: #f8f8f8;
}

main {
    flex: 1 0 auto;
}

.nd-header-list-item a {
    position: relative;
}

.nd-header-list-item.active a::after {
    content: "";
    display: block;
    width: 90%;
    height: 4px;
    background-color: #fdd400;
    position: absolute;
    bottom: -8px;
}

.nd-about-outline {
    position: relative;
    top: -2rem;
    max-width: 1172px;
}

.nd-footer {
    background-color: #efefef;
}

.nd-footer-navigation li:not(:last-child) {
    border-bottom: 1px solid #d3d3d3;
}

.nd-footer-copyright {
    background-color: #006c9f;
}

.nd-main-visual-top {
    background-image: url('/assets/images/main-visual-top.jpg');
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center center;
}

.nd-main-visual-about {
    background-image: url('/assets/images/main-visual-about.jpg');
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center center;
}

.nd-main-visual-service {
    background-image: url('/assets/images/main-visual-service.jpg');
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center center;
}

.nd-main-visual-news {
    background-image: url('/assets/images/main-visual-news.jpg');
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center center;
}

.nd-top-section-about {
    background-image: url('/assets/images/top-about-background.jpg');
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center center;
}

.nd-main-visual-seisakusho {
    background-image: url('/assets/images/main-visual-seisakusho.jpg');
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center center;
}

.top-google-map {
    position: relative;
    width: 100%;
    height: 0;
    padding-top: 25%;
}
 
.top-google-map iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.nd-service-solar-sites-list li {
  padding-left: 0 !important;
}

.nd-service-solar-sites-list li::before {
  display: none;
}

@media (width >= 64rem) {
    .nd-footer-navigation li:not(:last-child) {
        border-bottom: none;
        border-right: 1px solid #333;
    }
}

/* 
hamburger(ハンバーガーアイコン)
=================================== */
.hamburger {
  position: absolute;
  right: 20px;
  top: 20px;
  width: 50px;
  height: 40px;
  cursor: pointer;
  z-index: 300;
}

.hamburger__line {
  position: absolute;
  width: 50px;
  height: 3px;
  right: 0;
  background-color: #000;
  transition: all 0.5s;
}

.hamburger__line--1 {
  top: 1px;
}

.hamburger__line--2 {
  top: 18px;
}

.hamburger__line--3 {
  top: 36px;
}

/*ハンバーガーがクリックされたら*/
.open .hamburger__line--1 {
  transform: rotate(-45deg);
  top: 11px;
}

.open .hamburger__line--2 {
  opacity: 0;
}

.open .hamburger__line--3 {
  transform: rotate(45deg);
  top: 11px;
}

/* 
sp-nav(ナビ)
=================================== */
.sp-nav {
  position: fixed;
  left: -100%; /*ハンバーガーがクリックされる前はWindow右側に隠す*/
  top: 0;
  width: 70%; /* 出てくるスライドメニューの幅 */
  height: 100vh;
  background-color: #fff;
  transition: all 0.5s;
  z-index: 200;
  overflow-y: auto; /* メニューが多くなったらスクロールできるように */
}

/*ハンバーガーがクリックされたら右からスライド*/
.open .sp-nav {
  left: 0;
}


/* 
black-bg(ハンバーガーメニュー解除用bg)
=================================== */
.black-bg {
  position: fixed;
  left: 0;
  top: 0;
  width: 100vw;
  height: 100vh;
  z-index: 5;
  background-color: #000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.5s;
  cursor: pointer;
  z-index: 100;
}

/*ハンバーガーメニューが開いたら表示*/
.open .black-bg {
  opacity: 0.3;
  visibility: visible;
}