@charset "UTF-8";
/* extra-highvoltage-substation 追加 */
.lower__fv {
  padding: 150px 0 50px;
  background-image: linear-gradient(rgba(0,0,0,0.10),rgba(0,0,0,0.10)), url(../images/pages/extrahighvoltage/mv.jpg) ;
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
}
@keyframes fadeInChar {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}
.lower__fv__title {
  line-height: 1.5;
  margin-bottom: 0.75em;
}
.lower__fv__title span {
  display: inline-block;
}
.lower__fv__title span .char {
  opacity: 0;
  display: inline-block;
  animation: fadeInChar 0.6s forwards;
  color: #fff !important;
  font-family: "游明朝", YuMincho, serif !important;
  font-size: clamp(1.875rem, 1.4837rem + 1.9565vw, 3rem);

  font-style: normal;
  font-weight: 800;
}
/*.fv_list li {
  display: inline-block;
  margin-right: 1rem;
}*/
.fv_list li span {
  color: #fff !important;
  font-family: "游明朝", YuMincho, serif !important;
  font-size: clamp(0.9rem, 0.74rem + 0.95vw, 1.5rem);
  font-style: normal;
  font-weight: 800;
}
.fv_list li .char {
  opacity: 0;
  display: inline-block;
  animation: fadeInChar 0.6s forwards;
}
/*.fv_inner {
  padding: 50px;
  background: rgba(255, 255, 255, 0.4);
}
.lower__fv__title {
  text-align: center;
  line-height: 1.2;
  margin-bottom: 50px;
}
.fv_list {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(8px,2.2vw,20px);
  align-items: center;
  justify-content: center;
}
.fv_list li {
  --diamater: clamp(64px, 12vw, 200px);
  --fs: clamp(14px, 2.4vw, 18px);
  --bg: #e7280f;
  width: var(--diamater);
  height: var(--diamater);
  border-radius: 50%;
  display: grid;
  place-items: center;
  text-align: center;
  line-height: 1.2;
  color: #fff;
  background-color: #e7280f;
}*/
.fv_list li {
  position: relative;
  display: inline-block;
  margin: 0.5em 0;
  padding-bottom: 5px;
  width: 100%;
}
.fv_list li::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 3px;
  width: 0;
  background-color: #e7280f;
  opacity: 0;
  /*transform: translateX(-50%);*/
  animation: underlineFadeIn 0.6s forwards;
}
@keyframes underlineFadeIn {
  from {
    width: 0;
    opacity: 0;
  }
  to {
    width: var(--underline-width, 50px);
    opacity: 1;
  }
}
.fv_list li:nth-child(1)::after {
  --underline-width: 50px;
  animation-delay: 2s;
}
.fv_list li:nth-child(2)::after {
  --underline-width: 100px;
  animation-delay: 2.6s;
}
.fv_list li:nth-child(3)::after {
  --underline-width: 150px;
  animation-delay: 3.2s;
}
.common__btn {
  text-align: center;
}
.common__btn .char {
  opacity: 0;
  display: inline-block;
  animation: fadeInChar 0.6s forwards;
}
.top_contact_link {
  display: inline-block;
  font-family: "Syncopate", sans-serif;
  padding: 0.75rem 1.5rem;
  border: 1px solid #fff;      /* 白枠 */
  background: transparent;     /* 背景なし */
  color: #fff;                 /* 初期文字色は黒 */
  font-weight: 600;
  text-decoration: none;
  border-radius: 25px;
  transition: 
    background-color .3s ease,
    border-color .3s ease,
    color .3s ease;
}
/* hover時：背景・枠が赤、文字は白に */
.top_contact_link:hover {
  background-color: #e7280f;
  border-color: #e7280f;
  color: #fff;
}

.bt_sub_title {
  /*color: #fff;*/
  font-size: 1.3em;
  font-weight: 600;
  margin-bottom: 1em;
}
.bt_sub_title::before {
  content: "\\";
  margin-right: 0.5em;
}
.bt_sub_title::after {
  content: "/";
  margin-left: 0.5em;
}
@media screen and (max-width: 768px) {
.lower__fv {
  padding: 130px 0 50px;
}
  /*.fv_inner {
    padding: 30px;
  }*/
  .lower__fv__title {
    margin-bottom: 20px;
  }
  /*.fv_list li {
    --diamater: clamp(100px, 12vw, 112px);
  }*/
}
.lower__mv {
  height: 200px;
}
.lower__mv__title {
  top: 50%;
}
@media screen and (max-width: 768px) {
  .lower__mv {
    height: 150px;
  }
}
.choose_area {
  padding-top: 100px;
  padding-bottom: 100px;
  background: rgba(234, 234, 234, 0.2);
  position: relative;
}
.choose_area .image {
  width: 100%;
  aspect-ratio: 15/8;
  overflow: hidden;
  margin-bottom: 20px;
}

.choose_area .image img {
  -o-object-fit: cover;
     object-fit: cover;
  width: 100%;
  height: 100%;
  aspect-ratio: inherit; /* 画像も親要素の比率に従う */
}
.choose_list_title {
  color: #263643;
  font-size: 16px;
  font-style: normal;
  font-weight: 900;
  line-height: 160%; /* 25.6px */
  letter-spacing: 0.096px;
  padding-bottom: 15px;
  overflow: hidden;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  text-overflow: ellipsis;
  width: 100%;
  height: 55px;
}
.choose_list_text {
  position: relative;
}
.choose_list_text:before {
  content: "";
  display: block;
  background-color: #e7280f;
  width: 100%;
  height: 1px;
  margin-top: -10px;
  position: absolute;
  left: 0;
  z-index: 10;
}

@media screen and (max-width: 768px) {
  .choose_area {
    padding-top: 50px;
    padding-bottom: 50px;
  }
}
.choose_area::before {
  background-color: #fff;
  position: absolute;
  top: 0;
  left: 0;
  content: "";
  display: block;
  width: 100%;
  height: 100%;
  z-index: -1;
}
.choose_area_wrap {
    display: flex;
    justify-content: space-around;
}
.choose_area_wrap li {
    width: calc(33.3333% - 33.3333px);
}
@media screen and (max-width: 768px) {
    .choose_area_wrap {
        display: inherit;
    }
    .choose_area_wrap li {
        width: 100%;
        margin-bottom: 30px;
    }
    .choose_area_wrap li:last-child {
        margin-bottom: 0;
    }
}


.details {
  border-top: 1px solid #ddd;
  line-height: 3;
  max-width: 100%;
  padding: .5rem 1rem;
  background:#fff;
}
.details > summary {
  cursor: pointer;
  font-weight: 700;
  list-style: none;
  position: relative;
  padding-right: 1.5em;
}
.details .sub_title {
  font-family: "Syncopate", sans-serif;
  font-size: 12px;
  font-style: normal;
  font-weight: 400;
}
.details > summary::-webkit-details-marker {
  display:none;
}
.details > summary::after {
  content:"+";
  position:absolute;
  right:0;
  top:30%;
  line-height:1;
  font-size:1.2em;
  transition:transform .2s ease;
}
.details[open] > summary::after {
  content:"−";
}
.details__outer {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows .35s ease;
}
.details[open] .details__outer {
  grid-template-rows: 1fr;
}
.details__inner {
  overflow: hidden;
  opacity: 0;
  transition: opacity .28s ease .05s;
}
.details[open] .details__inner {
  opacity: 1;
}
.details__body {
  padding: .75rem 10px;
  background:#f5f5f5;
  border-radius:8px;
  line-height: 2;
}
@media (prefers-reduced-motion: reduce) {
  .details__outer, .details__inner, .details > summary::after { transition: none; }
}
@media screen and (max-width: 768px) {
  .details > summary {
    line-height: 2;
    padding: 0.5em 1.5em 0.5em 0.2em;
}
}