/* =====================================================
   Reset / Base
===================================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Noto Sans JP", sans-serif;
  color: #222;
  background-color: #ffffff;
  line-height: 1.7;
}

img {
  width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

/* =====================================================
   Breadcrumb
===================================================== */
.breadcrumb {
  background-color: #e3dfd1;
  border-bottom: 1px solid #eeeeee;
  padding: 12px 0;
}

.breadcrumb-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  font-size: 11px;
  color: #333;
}

.breadcrumb-inner a {
  color: #333;
}

/* =====================================================
   Hero
===================================================== */
.hero {
  position: relative;
  width: 100%;
}

.hero img {
  width: 100%;
  height: 206px;
  object-fit: cover;
  display: block;
}

.hero-title {
  position: absolute;
  left: max(24px, calc(50% - 550px + 24px));
  bottom: 20px;
  font-size: 32px;
  font-weight: 500;
  color: #ffffff;
  padding: 8px 0;
  text-shadow: 0 0 10px #333;
  //  background: rgba(0, 0, 0, 0.15);
  //  border-radius: 4px;
}

.hero-title span {
	display: block;
	font-size: 80%;
	margin-top: -1.5em;
}

/* =====================================================
   Main Content
===================================================== */
.content {
  max-width: 1100px;
  margin: 80px auto 120px;
  padding: 0 24px;
}

/* ---- Section common ---- */
.content section {
  margin-bottom: 80px;
}

.content h2 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 32px;
  padding-bottom: 0;
  border-bottom: none;
  color: #333;
}

/* =====================================================
   Text Section
===================================================== */
.section-text p {
  max-width: 1100px;
  font-size: 15px;
}

/* =====================================================
   Summary Section
===================================================== */
.section-summary .summary-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
  align-items: stretch;
  height: 286px;
}

.section-summary .summary-grid img {
  width: 430px;
  height: 100%;
  object-fit: cover;
}

.summary-table {
  width: 100%;
  height: 100%;
  border-collapse: collapse;
}

.summary-table th,
.summary-table td {
  border: 1px solid #ccc;
  padding: 12px;
  font-size: 14px;
}

.summary-table th {
  width: 200px;
  background-color: #d8f4ef;
  text-align: left;
  color: #333;
  font-weight: 500;
}

.summary-table td {
  background-color: #fff;
  color: #444;
}

/* =====================================================
   History (Timeline)
===================================================== */
.history-table {
  width: 100%;
  border-collapse: collapse;
}

.history-table th,
.history-table td {
  border: 1px solid #ddd;
  padding: 12px;
  font-size: 14px;
}

.history-table th {
  width: 200px;
  background-color: #d8f4ef;
  text-align: left;
}

/* =====================================================
   Image Sections
===================================================== */
.section-image img {
  margin-top: 16px;
}

/* =====================================================
   Equipment Images
===================================================== */
.equip-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 32px;
}

.equip-card {
  display: flex;
  flex-direction: column;
}

.equip-card img {
  width: 100%;
  height: 348px;
  object-fit: cover;
  margin-bottom: 12px;
}

.equip-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
  text-align: center;
}

.equip-card p {
  font-size: 13px;
  color: #666;
  line-height: 1.6;
}


/* =====================================================
   Responsive（参考：SP）
===================================================== */
@media screen and (max-width: 768px) {

  .hero-title {
    font-size: 22px;
    left: 24px;
    bottom: 16px;
  }

  .section-summary .summary-grid {
    grid-template-columns: 1fr;
    height: auto;
  }

  .section-summary .summary-grid img {
    width: 100%;
    height: auto;
  }

  .equip-grid {
    grid-template-columns: 1fr;
  }

  .nav a {
    margin-left: 0;
    margin-right: 16px;
  }
}

/* ===== 写真＋テキスト重ね ===== */
.cols-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.overlap-block {
  position: relative;
  margin-bottom: 120px;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.overlap-block img {
  width: 60%;
  height: 370px;
  object-fit: cover;
}


.overlap-box {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 510px;
  background: #fff;
  border: 1px solid #bfbfbf;
  padding: 30px 48px 25px;
  display: flex;
  flex-direction: column;
}

@media screen and (max-width: 768px) {
.overlap-block img {
  width: 100%;
  height: auto;
  margin-bottom: 0;
}
.overlap-box {
	width: 90%;
	max-width: 510px;
	position: relative;
	right: auto;
	top: auto;
	transform: translateY(-20%);
	margin: 0 auto;
}
}

.overlap-box h2 {
  font-size: 22px;
  margin-bottom: 10px;
  color: #333;
  font-weight: 500;
}

.overlap-box ul {
  padding-left: 18px;
  margin-bottom: 10px;
  list-style-type: disc;
}

.overlap-box li {
  font-size: 13px;
  line-height: 25px;
  color: #444;
}

.more-btn {
  align-self: flex-end;
  background: #258c99;
  color: #fff;
  padding: 12px 48px;
  font-size: 14px;
  transition: opacity 0.2s ease;
}

.more-btn:hover {
  opacity: 0.8;
}

/* ===============================
   Area page
================================ */
.area-activities {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 32px;
}

.area-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin: 12px 0 8px;
}

.area-card p {
  font-size: 14px;
}

/* Related links section */
.related-section {
  margin-top: 120px;
  background-color: #e9e7df;
  padding: 80px 0;
  width: 100vw;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
}

.related-section-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 48px;
}

.related-section h2 {
  font-size: 28px;
  margin-bottom: 48px;
  border-bottom: none;
  display: block;
  text-align: left;
  font-weight: 700;
  color: #333;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.related-card {
  background: #fff;
  display: flex;
  flex-direction: column;
  padding: 0;
  text-align: left;
  position: relative;
  transition: all 0.3s ease;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  height: 100%;
  text-decoration: none;
}

.related-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
}

.related-card img {
  width: 100%;
  height: auto;
  //  object-fit: cover;
  display: block;
}

.related-card-content {
  padding: 32px 32px 48px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.related-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 16px;
  color: #333;
}

.related-card p {
  font-size: 14px;
  color: #666;
  line-height: 1.7;
  margin-bottom: 0;
  flex: 1;
}

.related-card::after {
  content: "→";
  position: absolute;
  right: 32px;
  bottom: 24px;
  font-size: 20px;
  color: #aaa;
  transition: color 0.3s ease;
}

.related-card:hover::after {
  color: #258c99;
}

/* SP */
@media screen and (max-width: 768px) {

  .area-activities,
  .related-grid {
    grid-template-columns: 1fr;
  }
}


/* =========================================
   Geothermal Power Page (pp_geo)
   既存CSSに追記
========================================= */

/* セクション間余白の整理 */
.content section+section {
  margin-top: 80px;
}

/* グラフ・図版エリア */
/*--.section-image {
  text-align: center;
}--*/

.section-image img {
  max-width: 1000px;
  text-align: center;
  margin: 24px auto 0;
}

.section-image h3.imgTitle {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
  text-align: center;
}

.section-image p.imgSupple {
  font-size: 0.7em;
  font-weight: 500;
  margin-bottom: 8px;
  text-align: center;
}

/* 地熱発電の特長（4カラム） */
/* --- Cards Common --- */
.area-activities {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 32px;
}

.area-activities.cols-4 {
  grid-template-columns: repeat(4, 1fr);
}

.area-activities.cols-2 {
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}

.area-card {
  text-align: left;
  display: flex;
  flex-direction: column;
}

.area-card img {
  width: 100%;
  height: 270px;
  object-fit: cover;
  margin-bottom: 16px;
}

/* Full Bleed Layout (Edge to Edge) */
.full-bleed-section {
  width: 100vw;
  position: relative;
  left: 50%;
  right: 50%;
  margin-left: -50vw;
  margin-right: -50vw;
  margin-bottom: 120px;
  overflow: hidden;
}

.full-bleed-image img {
  width: 100%;
  height: auto;
  display: block;
}

.full-bleed-caption {
  max-width: 1200px;
  margin: 24px auto 0;
  padding: 0 24px;
}

.full-bleed-caption h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
}

.full-bleed-caption p {
  font-size: 14px;
  color: #666;
}

.full-bleed-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  width: 100%;
}

.full-bleed-grid .grid-item {
  position: relative;
  overflow: hidden;
}

.full-bleed-grid .grid-item img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  display: block;
}

.item-caption {
  padding: 32px 40px;
  background-color: #f7f7f7;
  height: 100%;
}

.item-caption h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
}

.item-caption p {
  font-size: 14px;
  color: #666;
  line-height: 1.6;
}

@media screen and (max-width: 768px) {
  .full-bleed-grid {
    grid-template-columns: 1fr;
  }

  .full-bleed-grid .grid-item img {
    height: 240px;
  }
}

/* Survey Card Specific for symbiosis.html */
.survey-card {
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.survey-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  margin-bottom: 0;
}

.survey-card-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.survey-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 12px;
  color: #333;
}

.survey-card p {
  font-size: 13px;
  line-height: 1.6;
  color: #666;
  margin-bottom: 0;
}

.area-card-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.area-card.centered-icon {
  text-align: center;
  align-items: center;
}

.area-card.centered-icon img {
  width: 200px;
  height: 200px;
  object-fit: contain;
  margin: 0 auto 16px;
}

.feature-badge {
  display: inline-block;
  background-color: #258c99;
  color: #fff;
  font-size: 10px;
  padding: 2px 12px;
  border-radius: 10px;
  margin-bottom: 8px;
}

.area-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 12px;
  color: #333;
}

.area-card p {
  font-size: 13px;
  line-height: 1.6;
  color: #666;
}


/* =========================================
   Responsive（SP）
========================================= */
@media screen and (max-width: 768px) {

  .area-activities,
  .related-grid {
    grid-template-columns: 1fr !important;
    gap: 40px;
  }

  .area-card img,
  .related-card img {
    height: 180px;
  }
}