@charset "UTF-8";

/*!
Theme Name: Cocoon Child
Description: Cocoon専用の子テーマ
Theme URI: https://wp-cocoon.com/
Author: わいひら
Author URI: https://nelog.jp/
Template:   cocoon-master
Version:    1.1.3
*/


/* ===================================
   京都皇帝早生桐 光合成と炭素固定セクション
   革新的CSS - 2025年最新版
   =================================== */

/* ベースコンテナ */
.photosynthesis-mechanism-2025-section {
  position: relative;
  background: linear-gradient(180deg, #f9fbe7 0%, #ffffff 50%, #f1f8e9 100%);
  padding: 100px 0;
  overflow: hidden;
  font-family: 'Noto Sans JP', 'Hiragino Sans', 'メイリオ', sans-serif;
}

.photosynthesis-mechanism-2025-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 50%, rgba(139,195,74,0.05) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(76,175,80,0.05) 0%, transparent 50%);
  pointer-events: none;
}

.mechanism-container-ultimate {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
  z-index: 1;
}

/* ヘッダーセクション */
.mechanism-header-dynamic {
  text-align: center;
  margin-bottom: 80px;
  position: relative;
}

.header-wave-animation {
  position: absolute;
  top: -60px;
  left: -20px;
  right: -20px;
  height: 120px;
  opacity: 0.3;
  animation: waveMove 15s ease-in-out infinite;
}

@keyframes waveMove {
  0%, 100% { transform: translateX(0) translateY(0); }
  25% { transform: translateX(30px) translateY(-5px); }
  75% { transform: translateX(-30px) translateY(5px); }
}

.mechanism-main-heading {
  font-size: clamp(32px, 4.5vw, 46px);
  font-weight: 800;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  animation: fadeInUp 0.8s ease;
  position: relative;
  z-index: 2;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.heading-icon-photosynthesis {
  font-size: 56px;
  animation: leafFloat 3s ease-in-out infinite;
}

@keyframes leafFloat {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-10px) rotate(5deg); }
}

.heading-text-primary {
  color: #558b2f;
  font-size: 0.85em;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.heading-text-emphasis {
  background: linear-gradient(135deg, #2e7d32, #43a047, #66bb6a);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 1.1em;
  letter-spacing: 1px;
}

/* イントロブロック */
.intro-block-photosynthesis {
  background: white;
  border-radius: 20px;
  padding: 50px;
  margin-bottom: 60px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.06);
  border-top: 4px solid linear-gradient(90deg, #689f38, #8bc34a);
  position: relative;
  overflow: hidden;
}

.intro-block-photosynthesis::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(139,195,74,0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.intro-content-wrapper {
  position: relative;
  z-index: 1;
}

.intro-text-enhanced {
  font-size: 18px;
  line-height: 2;
  color: #424242;
  margin-bottom: 30px;
}

/* テキスト装飾スタイル */
.text-highlight-green {
  background: linear-gradient(transparent 60%, #c5e1a5 60%);
  padding: 0 4px;
  font-weight: 700;
  color: #2e7d32;
}

.text-emphasis-yellow {
  background: #fff59d;
  padding: 2px 6px;
  border-radius: 3px;
  font-weight: 600;
  color: #f57f17;
}

.text-bold-primary {
  color: #1b5e20;
  font-weight: 700;
  font-size: 1.05em;
}

.text-accent-blue {
  color: #1976d2;
  font-weight: 600;
}

.text-highlight-lime {
  background: #f0f4c3;
  padding: 2px 6px;
  border-radius: 3px;
  color: #827717;
}

.text-bold-green {
  color: #2e7d32;
  font-weight: 700;
}

.text-emphasis-orange {
  color: #ef6c00;
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: #ffb74d;
  text-underline-offset: 3px;
}

.text-emphasis-purple {
  color: #6a1b9a;
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: #ce93d8;
  text-underline-offset: 3px;
}

.text-bold-orange {
  color: #e65100;
  font-weight: 700;
}

.text-highlight-cyan {
  background: #b2ebf2;
  padding: 2px 6px;
  border-radius: 3px;
  font-weight: 600;
}

.text-highlight-pink {
  background: #fce4ec;
  padding: 2px 6px;
  border-radius: 3px;
  font-weight: 600;
}

.text-emphasis-blue {
  color: #0277bd;
  font-weight: 600;
}

.text-bold-red {
  color: #c62828;
  font-weight: 700;
}

.text-xxl-green {
  color: #1b5e20;
  font-size: 1.15em;
  font-weight: 800;
}

.text-highlight-important {
  background: #ffeb3b;
  padding: 3px 8px;
  border-radius: 4px;
  font-weight: 700;
  color: #f57f17;
}

.text-emphasis-red {
  color: #d32f2f;
  font-weight: 600;
}

.text-emphasis-green {
  color: #388e3c;
  font-weight: 600;
}

.text-bold-success {
  color: #2e7d32;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.text-gradient-primary {
  background: linear-gradient(90deg, #2e7d32, #4caf50, #66bb6a);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
}

.text-gradient-secondary {
  background: linear-gradient(90deg, #1976d2, #42a5f5);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
}

.text-gradient-gold {
  background: linear-gradient(90deg, #f9a825, #fdd835);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 800;
}

.text-emphasis-gold {
  color: #f57f17;
  font-weight: 600;
}

/* 色アクセント */
.color-accent-primary { color: #2e7d32; }
.color-accent-secondary { color: #1976d2; }
.color-gradient-green {
  background: linear-gradient(90deg, #2e7d32, #43a047);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 化学式表示エリア */
.chemical-equation-showcase {
  background: linear-gradient(135deg, #e8f5e9, #ffffff);
  border-radius: 15px;
  padding: 40px;
  margin: 40px 0;
  box-shadow: 0 5px 25px rgba(0,0,0,0.08);
  border: 2px solid #a5d6a7;
}

.equation-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 20px;
  font-weight: 600;
}

.equation-left,
.equation-right {
  display: flex;
  align-items: center;
  gap: 15px;
  flex-wrap: wrap;
}

.molecule {
  padding: 8px 16px;
  border-radius: 20px;
  font-weight: 700;
  transition: transform 0.3s ease;
}

.molecule:hover {
  transform: scale(1.1);
}

.molecule.co2 {
  background: #ffecb3;
  color: #e65100;
}

.molecule.h2o {
  background: #e1f5fe;
  color: #0277bd;
}

.molecule.glucose {
  background: #fce4ec;
  color: #c2185b;
}

.molecule.oxygen {
  background: #e0f2f1;
  color: #00695c;
}

.energy {
  background: linear-gradient(135deg, #fff59d, #ffeb3b);
  color: #f57f17;
  padding: 8px 16px;
  border-radius: 20px;
  font-weight: 700;
  box-shadow: 0 3px 10px rgba(255,193,7,0.3);
}

.plus {
  color: #9e9e9e;
  font-size: 24px;
  font-weight: 300;
}

.equation-arrow {
  animation: arrowPulse 2s ease-in-out infinite;
}

@keyframes arrowPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

.equation-caption {
  text-align: center;
  margin-top: 20px;
  font-size: 14px;
  color: #616161;
  font-style: italic;
}

/* ジグザグレイアウト */
.process-detail-zigzag {
  margin: 60px 0;
}

.zigzag-item {
  display: flex;
  gap: 40px;
  margin-bottom: 50px;
  align-items: flex-start;
  position: relative;
}

.zigzag-item.left-align {
  flex-direction: row;
}

.zigzag-item.right-align {
  flex-direction: row-reverse;
}

.zigzag-number {
  flex-shrink: 0;
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, #66bb6a, #43a047);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 32px;
  font-weight: 800;
  box-shadow: 0 8px 20px rgba(76,175,80,0.3);
  position: sticky;
  top: 100px;
}

.zigzag-content {
  flex: 1;
  background: white;
  border-radius: 15px;
  padding: 35px;
  box-shadow: 0 5px 20px rgba(0,0,0,0.08);
  border-left: 4px solid #4caf50;
}

.zigzag-item.right-align .zigzag-content {
  border-left: none;
  border-right: 4px solid #4caf50;
}

.zigzag-title {
  font-size: 24px;
  margin-bottom: 20px;
  color: #2e7d32;
}

.zigzag-text {
  font-size: 16px;
  line-height: 1.9;
  color: #424242;
  margin-bottom: 20px;
}

/* データボックス */
.data-box-photo {
  background: #f5f5f5;
  border-radius: 10px;
  padding: 20px;
  margin-top: 20px;
}

.data-item {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid #e0e0e0;
}

.data-item:last-child {
  border-bottom: none;
}

.data-label {
  color: #616161;
  font-weight: 600;
}

.data-value {
  color: #1976d2;
  font-weight: 700;
}

/* プロセスフロー */
.process-flow-container {
  display: flex;
  align-items: center;
  justify-content: space-around;
  margin-top: 30px;
  padding: 25px;
  background: linear-gradient(135deg, #f3e5f5, #ffffff);
  border-radius: 15px;
}

.flow-step {
  text-align: center;
  padding: 15px;
}

.step-icon {
  font-size: 36px;
  margin-bottom: 10px;
  display: block;
}

.step-name {
  font-size: 14px;
  font-weight: 600;
  color: #424242;
}

.flow-arrow {
  font-size: 24px;
  color: #9e9e9e;
  animation: arrowMove 2s ease-in-out infinite;
}

@keyframes arrowMove {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(5px); }
}

/* RuBisCOセクション */
.rubisco-section-advanced {
  margin: 80px 0;
  padding: 50px;
  background: linear-gradient(135deg, #fff8e1, #ffffff);
  border-radius: 20px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.06);
}

.section-header-rubisco {
  margin-bottom: 40px;
}

.section-title-gradient {
  font-size: 28px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 15px;
  color: #f57c00;
  padding-bottom: 15px;
  border-bottom: 3px solid #ffb74d;
}

.title-icon {
  font-size: 36px;
}

.rubisco-content-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
  align-items: start;
}

@media (max-width: 968px) {
  .rubisco-content-grid {
    grid-template-columns: 1fr;
  }
}

.rubisco-description {
  font-size: 17px;
  line-height: 1.9;
  color: #424242;
  margin-bottom: 30px;
}

/* 特性カード */
.rubisco-characteristics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 20px;
  margin-top: 30px;
}

.char-card {
  background: white;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0,0,0,0.08);
  transition: transform 0.3s ease;
}

.char-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}

.card-header-gradient {
  background: linear-gradient(135deg, #8bc34a, #689f38);
  color: white;
  padding: 12px;
  text-align: center;
}

.card-header-gradient h5 {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
}

.card-body {
  padding: 20px;
  text-align: center;
}

.big-number {
  display: block;
  font-size: 28px;
  font-weight: 800;
  color: #2e7d32;
  margin-bottom: 5px;
}

.unit {
  font-size: 12px;
  color: #616161;
}

/* サイドインフォパネル */
.side-info-panel {
  position: sticky;
  top: 100px;
}

.info-box-advanced {
  background: linear-gradient(135deg, #e8f5e9, #ffffff);
  border-radius: 15px;
  padding: 25px;
  border: 2px solid #a5d6a7;
}

.info-title {
  font-size: 18px;
  font-weight: 700;
  color: #2e7d32;
  margin-bottom: 15px;
}

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

.info-list li {
  padding: 8px 0;
  border-bottom: 1px solid #e0e0e0;
  font-size: 14px;
  color: #424242;
}

.info-list li:last-child {
  border-bottom: none;
}

.info-list strong {
  color: #1b5e20;
}

/* タイムライン */
.c3-photosynthesis-timeline {
  margin: 80px 0;
  padding: 50px;
  background: white;
  border-radius: 20px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.06);
}

.timeline-header {
  font-size: 28px;
  text-align: center;
  margin-bottom: 50px;
  color: #2e7d32;
}

.timeline-container {
  position: relative;
  padding: 0 50px;
}

.timeline-line {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, #4caf50, #8bc34a);
  transform: translateX(-50%);
}

.timeline-item {
  display: flex;
  margin-bottom: 50px;
  position: relative;
}

.timeline-item.item-left {
  justify-content: flex-start;
}

.timeline-item.item-right {
  justify-content: flex-end;
}

.timeline-marker {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 50px;
  background: white;
  border: 4px solid #4caf50;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #2e7d32;
  font-size: 20px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
  z-index: 2;
}

.timeline-content {
  width: 45%;
  background: #f8f8f8;
  border-radius: 12px;
  padding: 25px;
  box-shadow: 0 3px 15px rgba(0,0,0,0.08);
}

.timeline-content h5 {
  color: #2e7d32;
  font-size: 18px;
  margin-bottom: 15px;
  font-weight: 700;
}

.timeline-content p {
  font-size: 15px;
  line-height: 1.8;
  color: #424242;
}

@media (max-width: 768px) {
  .timeline-container {
    padding: 0 0 0 40px;
  }
  
  .timeline-line {
    left: 20px;
  }
  
  .timeline-item {
    justify-content: flex-start !important;
  }
  
  .timeline-marker {
    left: 20px;
  }
  
  .timeline-content {
    width: calc(100% - 60px);
    margin-left: 60px;
  }
}

/* 効率比較セクション */
.efficiency-comparison-section {
  margin: 80px 0;
  padding: 50px;
  background: linear-gradient(135deg, #e0f7fa, #ffffff);
  border-radius: 20px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.06);
}

.comparison-header {
  font-size: 28px;
  text-align: center;
  margin-bottom: 40px;
}

.showcase-intro {
  font-size: 18px;
  line-height: 1.9;
  text-align: center;
  margin-bottom: 40px;
  color: #424242;
}

.data-highlight-xxl {
  background: #ffeb3b;
  padding: 4px 10px;
  border-radius: 4px;
  font-weight: 800;
  font-size: 1.1em;
  color: #f57f17;
}

.data-comparison {
  color: #757575;
  font-weight: 600;
}

/* 比較ビジュアル */
.comparison-visual-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

@media (max-width: 968px) {
  .comparison-visual-container {
    grid-template-columns: 1fr;
  }
}

.tree-comparison {
  background: white;
  border-radius: 15px;
  padding: 30px;
  box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

.tree-item {
  margin-bottom: 25px;
}

.tree-name {
  font-size: 16px;
  font-weight: 700;
  color: #424242;
  margin-bottom: 10px;
}

.efficiency-bar {
  background: #e0e0e0;
  height: 40px;
  border-radius: 20px;
  overflow: hidden;
  position: relative;
}

.bar-fill {
  height: 100%;
  background: linear-gradient(90deg, #4caf50, #8bc34a);
  display: flex;
  align-items: center;
  padding: 0 15px;
  transition: width 2s ease;
  animation: fillBar 2s ease;
}

@keyframes fillBar {
  from { width: 0 !important; }
}

.bar-fill.secondary {
  background: linear-gradient(90deg, #ff9800, #ffb74d);
}

.bar-fill.tertiary {
  background: linear-gradient(90deg, #9e9e9e, #bdbdbd);
}

.bar-value {
  color: white;
  font-weight: 700;
  font-size: 16px;
}

.efficiency-label {
  font-size: 12px;
  color: #616161;
  margin-top: 5px;
}

.efficiency-advantage {
  background: linear-gradient(135deg, #c8e6c9, #ffffff);
  border-radius: 15px;
  padding: 30px;
  border: 2px solid #81c784;
}

.efficiency-advantage h5 {
  color: #2e7d32;
  font-size: 20px;
  margin-bottom: 20px;
  font-weight: 700;
}

.advantage-points {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.point-item {
  display: flex;
  align-items: center;
  gap: 12px;
}

.point-icon {
  font-size: 20px;
  color: #4caf50;
}

.point-text {
  font-size: 15px;
  color: #424242;
}

.point-text strong {
  color: #2e7d32;
}

/* 追加詳細セクション */
.additional-details-section {
  margin: 80px 0;
}

.details-header {
  font-size: 28px;
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 40px;
  color: #1976d2;
}

.header-icon {
  font-size: 36px;
}

.details-content-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.detail-block {
  background: white;
  border-radius: 15px;
  padding: 30px;
  box-shadow: 0 5px 20px rgba(0,0,0,0.08);
  border-top: 4px solid #4caf50;
  transition: transform 0.3s ease;
}

.detail-block:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.12);
}

.block-title {
  font-size: 18px;
  color: #2e7d32;
  margin-bottom: 15px;
  font-weight: 700;
}

.block-text {
  font-size: 15px;
  line-height: 1.8;
  color: #424242;
  margin-bottom: 15px;
}

.data-indicator {
  background: #f5f5f5;
  border-radius: 8px;
  padding: 12px;
  margin-top: 15px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.indicator-label {
  font-size: 13px;
  color: #616161;
  font-weight: 600;
}

.indicator-value {
  font-size: 15px;
  color: #1976d2;
  font-weight: 700;
}

/* 結論サマリー */
.conclusion-summary-photo {
  margin-top: 80px;
  background: linear-gradient(135deg, #fff8e1, #fffde7);
  border-radius: 20px;
  padding: 50px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.08);
  border: 2px solid #fdd835;
}

.summary-wrapper {
  text-align: center;
}

.summary-title {
  font-size: 30px;
  margin-bottom: 25px;
}

.summary-text {
  font-size: 18px;
  line-height: 1.9;
  color: #424242;
  margin-bottom: 30px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.cta-area {
  margin-top: 40px;
}

.cta-text {
  font-size: 16px;
  color: #616161;
  margin-bottom: 20px;
}

.cta-button-photosynthesis {
  background: linear-gradient(135deg, #2e7d32, #43a047);
  color: white;
  padding: 15px 40px;
  border-radius: 50px;
  border: none;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 5px 20px rgba(46,125,50,0.3);
}

.cta-button-photosynthesis:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(46,125,50,0.4);
}

.cta-button-photosynthesis .arrow {
  font-size: 20px;
  transition: transform 0.3s ease;
}

.cta-button-photosynthesis:hover .arrow {
  transform: translateX(5px);
}

/* 画像配置 */
.image-placement-photosynthesis {
  margin: 50px 0;
  background: #f5f5f5;
  border-radius: 15px;
  padding: 20px;
  text-align: center;
}

.responsive-image-full {
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.image-description {
  margin-top: 15px;
  font-size: 14px;
  color: #616161;
  font-style: italic;
}

/* レスポンシブ対応 */
@media (max-width: 1024px) {
  .mechanism-container-ultimate {
    padding: 0 15px;
  }
  
  .intro-block-photosynthesis {
    padding: 35px 25px;
  }
  
  .zigzag-item {
    flex-direction: column !important;
    align-items: center;
  }
  
  .zigzag-number {
    position: relative;
    top: auto;
    margin-bottom: 20px;
  }
}

@media (max-width: 768px) {
  .mechanism-main-heading {
    font-size: 28px;
  }
  
  .equation-container {
    font-size: 16px;
  }
  
  .rubisco-section-advanced {
    padding: 30px 20px;
  }
  
  .timeline-header,
  .comparison-header,
  .details-header {
    font-size: 24px;
  }
  
  .cta-button-photosynthesis {
    padding: 12px 30px;
    font-size: 14px;
  }
}

@media (max-width: 480px) {
  .intro-text-enhanced {
    font-size: 16px;
  }
  
  .zigzag-content {
    padding: 25px 20px;
  }
  
  .process-flow-container {
    flex-direction: column;
    gap: 20px;
  }
  
  .flow-arrow {
    transform: rotate(90deg);
  }
  
  .rubisco-characteristics {
    grid-template-columns: 1fr;
  }
  
  .detail-block {
    padding: 20px;
  }
  
  .conclusion-summary-photo {
    padding: 30px 20px;
  }
}

/* プリント対応 */
@media print {
  .photosynthesis-mechanism-2025-section {
    background: white;
  }
  
  .header-wave-animation {
    display: none;
  }
  
  .cta-area {
    display: none;
  }
  
  * {
    box-shadow: none !important;
  }
}

/* アニメーション控えめ設定 */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}



/* ===================================
   京都皇帝早生桐 樹木の炭素配分と成長メカニズム
   革新的CSS - 2025年最新版
   =================================== */
/* 京都皇帝早生桐 - 樹木の炭素配分と成長メカニズム セクション専用CSS */

/* セクション全体の基本設定 */
.kcd-carbon-mechanism-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 20px;
  background: linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%);
  font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
  color: #2c3e50;
  line-height: 1.8;
}

/* メインタイトル部分 */
.kcd-section-header {
  text-align: center;
  margin-bottom: 50px;
  position: relative;
}

.kcd-main-title {
  font-size: 32px;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 20px;
  letter-spacing: 0.05em;
  animation: fadeInUp 0.8s ease-out;
}

.kcd-title-accent {
  background: linear-gradient(135deg, #2e7d32 0%, #43a047 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 800;
}

.kcd-title-underline {
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, #2e7d32, #66bb6a);
  margin: 0 auto;
  border-radius: 2px;
  animation: expandWidth 1s ease-out;
}

/* イントロダクションブロック */
.kcd-intro-block {
  background: #ffffff;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 2px 15px rgba(0,0,0,0.08);
  margin-bottom: 40px;
}

.kcd-intro-text {
  font-size: 16px;
  line-height: 1.9;
  color: #34495e;
  margin-bottom: 25px;
}

.kcd-highlight {
  color: #2e7d32;
  font-weight: 700;
  padding: 2px 4px;
  background: rgba(46, 125, 50, 0.08);
  border-radius: 3px;
}

.kcd-emphasis {
  color: #1976d2;
  font-weight: 600;
  border-bottom: 2px solid rgba(25, 118, 210, 0.3);
}

/* 画像コンテナ */
.kcd-image-container {
  margin: 30px 0;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.kcd-full-width-image {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.3s ease;
}

.kcd-full-width-image:hover {
  transform: scale(1.02);
}

.kcd-image-caption {
  font-size: 13px;
  color: #7f8c8d;
  text-align: center;
  padding: 10px;
  background: #f8f9fa;
  margin: 0;
}

/* 特徴セクション */
.kcd-feature-section {
  background: #ffffff;
  padding: 35px;
  border-radius: 12px;
  margin-bottom: 40px;
  border-left: 4px solid #2e7d32;
  box-shadow: 0 3px 15px rgba(0,0,0,0.06);
}

.kcd-sub-title {
  font-size: 24px;
  font-weight: 700;
  color: #2c3e50;
  margin-bottom: 25px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.kcd-icon {
  font-size: 28px;
  animation: pulse 2s infinite;
}

.kcd-text-green {
  color: #2e7d32;
}

.kcd-text-blue {
  color: #1976d2;
}

.kcd-text-purple {
  color: #7b1fa2;
}

.kcd-text-orange {
  color: #f57c00;
}

.kcd-text-red {
  color: #d32f2f;
  font-weight: 700;
}

/* コンテンツブロック */
.kcd-content-block {
  background: #fafafa;
  padding: 25px;
  border-radius: 8px;
  margin-top: 20px;
}

.kcd-paragraph {
  font-size: 15px;
  line-height: 1.9;
  color: #34495e;
  margin-bottom: 20px;
}

.kcd-paragraph:last-child {
  margin-bottom: 0;
}

.kcd-strong-green {
  color: #2e7d32;
  font-weight: 700;
  font-size: 16px;
}

.kcd-strong-blue {
  color: #1976d2;
  font-weight: 700;
  font-size: 16px;
}

.kcd-strong-orange {
  color: #f57c00;
  font-weight: 700;
}

.kcd-number {
  color: #d32f2f;
  font-weight: 700;
  font-size: 17px;
}

.kcd-number-large {
  color: #d32f2f;
  font-weight: 800;
  font-size: 20px;
  text-shadow: 1px 1px 2px rgba(0,0,0,0.1);
}

/* データ比較 */
.kcd-data-comparison {
  background: #ffffff;
  padding: 25px;
  border-radius: 8px;
  margin: 25px 0;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.kcd-comparison-item {
  margin-bottom: 20px;
}

.kcd-comparison-label {
  font-size: 14px;
  font-weight: 600;
  color: #555;
  margin-bottom: 8px;
}

.kcd-comparison-bar {
  position: relative;
  height: 40px;
  background: #ecf0f1;
  border-radius: 20px;
  overflow: hidden;
}

.kcd-bar-fill {
  position: absolute;
  height: 100%;
  background: linear-gradient(90deg, #2e7d32, #66bb6a);
  border-radius: 20px;
  animation: expandBar 1.5s ease-out;
}

.general-tree .kcd-bar-fill {
  background: linear-gradient(90deg, #95a5a6, #bdc3c7);
}

.kcd-bar-text {
  position: absolute;
  right: 15px;
  top: 50%;
  transform: translateY(-50%);
  font-weight: 700;
  color: #2c3e50;
  font-size: 16px;
}

/* 成長統計 */
.kcd-growth-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin: 30px 0;
}

.kcd-stat-card {
  background: linear-gradient(135deg, #ffffff 0%, #f5f7fa 100%);
  padding: 25px;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0,0,0,0.08);
  border: 1px solid rgba(46, 125, 50, 0.2);
  transition: transform 0.3s ease;
}

.kcd-stat-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.12);
}

.kcd-stat-number {
  font-size: 36px;
  font-weight: 800;
  color: #2e7d32;
  margin-bottom: 10px;
}

.kcd-stat-label {
  font-size: 14px;
  color: #7f8c8d;
  font-weight: 500;
}

/* プロセスグリッド */
.kcd-process-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin: 30px 0;
}

.kcd-process-item {
  display: flex;
  align-items: flex-start;
  gap: 15px;
  padding: 20px;
  background: #ffffff;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
  transition: all 0.3s ease;
}

.kcd-process-item:hover {
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
  transform: translateY(-3px);
}

.kcd-process-number {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #7b1fa2, #9c27b0);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 18px;
  flex-shrink: 0;
}

.kcd-process-content {
  flex: 1;
}

.kcd-process-title {
  font-size: 16px;
  font-weight: 700;
  color: #2c3e50;
  margin-bottom: 8px;
}

.kcd-process-desc {
  font-size: 14px;
  color: #7f8c8d;
  line-height: 1.6;
}

/* 木材成分 */
.kcd-composition-container {
  background: #ffffff;
  padding: 30px;
  border-radius: 12px;
  margin: 25px 0;
  box-shadow: 0 3px 15px rgba(0,0,0,0.08);
}

.kcd-chart-title {
  font-size: 18px;
  font-weight: 700;
  color: #2c3e50;
  margin-bottom: 20px;
  text-align: center;
}

.kcd-chart-items {
  margin-bottom: 25px;
}

.kcd-chart-item {
  display: flex;
  align-items: center;
  margin-bottom: 15px;
  position: relative;
}

.kcd-chart-bar {
  height: 35px;
  border-radius: 5px;
  margin-right: 15px;
  animation: expandBar 1.5s ease-out;
}

.kcd-chart-bar.cellulose {
  background: linear-gradient(90deg, #4caf50, #8bc34a);
}

.kcd-chart-bar.hemicellulose {
  background: linear-gradient(90deg, #2196f3, #03a9f4);
}

.kcd-chart-bar.lignin {
  background: linear-gradient(90deg, #ff9800, #ffc107);
}

.kcd-chart-label {
  font-size: 14px;
  font-weight: 600;
  color: #555;
}

/* アドバンテージカード */
.kcd-advantage-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin: 30px 0;
}

.kcd-advantage-card {
  background: linear-gradient(135deg, #f5f7fa 0%, #ffffff 100%);
  padding: 25px;
  border-radius: 12px;
  text-align: center;
  border: 2px solid rgba(46, 125, 50, 0.15);
  transition: all 0.3s ease;
}

.kcd-advantage-card:hover {
  border-color: rgba(46, 125, 50, 0.4);
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(46, 125, 50, 0.15);
}

.kcd-advantage-icon {
  font-size: 40px;
  margin-bottom: 15px;
}

.kcd-advantage-title {
  font-size: 18px;
  font-weight: 700;
  color: #2e7d32;
  margin-bottom: 10px;
}

.kcd-advantage-text {
  font-size: 14px;
  color: #7f8c8d;
  line-height: 1.6;
}

/* まとめセクション */
.kcd-conclusion {
  margin-top: 50px;
}

.kcd-conclusion-box {
  background: linear-gradient(135deg, #2e7d32 0%, #43a047 100%);
  color: white;
  padding: 40px;
  border-radius: 15px;
  box-shadow: 0 5px 25px rgba(46, 125, 50, 0.3);
}

.kcd-conclusion-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.kcd-text-gradient {
  background: linear-gradient(90deg, #ffeb3b, #fff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.kcd-conclusion-text {
  font-size: 16px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.95);
}

.kcd-emphasis-final {
  color: #ffeb3b;
  font-weight: 700;
  font-size: 18px;
}

.kcd-strong-final {
  color: #ffffff;
  font-weight: 800;
  font-size: 17px;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.kcd-cta-container {
  margin-top: 25px;
  padding-top: 25px;
  border-top: 1px solid rgba(255,255,255,0.3);
}

.kcd-cta-text {
  font-size: 15px;
  color: rgba(255,255,255,0.9);
  text-align: center;
  margin: 0;
}

/* アニメーション定義 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes expandWidth {
  from {
    width: 0;
  }
  to {
    width: 80px;
  }
}

@keyframes expandBar {
  from {
    width: 0;
  }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
  .kcd-carbon-mechanism-section {
    padding: 40px 15px;
  }
  
  .kcd-main-title {
    font-size: 24px;
  }
  
  .kcd-sub-title {
    font-size: 20px;
  }
  
  .kcd-feature-section,
  .kcd-intro-block {
    padding: 25px 20px;
  }
  
  .kcd-content-block {
    padding: 20px 15px;
  }
  
  .kcd-process-grid,
  .kcd-growth-stats,
  .kcd-advantage-cards {
    grid-template-columns: 1fr;
  }
  
  .kcd-stat-number {
    font-size: 28px;
  }
  
  .kcd-conclusion-box {
    padding: 30px 20px;
  }
  
  .kcd-conclusion-title {
    font-size: 20px;
  }
}

@media (max-width: 480px) {
  .kcd-main-title {
    font-size: 20px;
  }
  
  .kcd-sub-title {
    font-size: 18px;
  }
  
  .kcd-paragraph {
    font-size: 14px;
  }
  
  .kcd-comparison-bar {
    height: 35px;
  }
  
  .kcd-bar-text {
    font-size: 14px;
  }
  
  .kcd-process-item {
    flex-direction: column;
    text-align: center;
  }
  
  .kcd-advantage-icon {
    font-size: 32px;
  }
}

/* 京都皇帝早生桐の生理学的特性とCO₂固定効率 専用CSS */
/* 京都皇帝早生桐の生理学的特性とCO₂固定効率 専用CSS */

/* 京都皇帝早生桐の生理学的特性とCO₂固定効率 安定版CSS */

/* セクション全体 - 白背景に対応 */
.kpco2-main-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 20px;
  background: #fafafa;  /* 薄いグレー */
  /* または */
  background: linear-gradient(180deg, #f5f5f5 0%, #fafafa 100%);  /* 微細なグラデーション */
  /* または */
  background: #f8f9fa;  /* 薄い青みがかったグレー */
  font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
  color: #333333;
  line-height: 1.8;
  border: 1px solid #e0e0e0;  /* 境界線を追加 */
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

/* ヘッダー */
.kpco2-header {
  text-align: center;
  margin-bottom: 50px;
}

.kpco2-title {
  font-size: 32px;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 20px;
  letter-spacing: 0.02em;
  animation: fadeInUp 0.6s ease-out;
}

.kpco2-green {
  color: #2e7d32;
  font-weight: 800;
}

.kpco2-blue {
  color: #1565c0;
  font-weight: 800;
}

.kpco2-title-border {
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, #2e7d32, #1565c0);
  margin: 0 auto;
  border-radius: 2px;
}

/* イントロブロック */
.kpco2-intro-block {
  background: #f8f9fa;
  padding: 30px;
  border-radius: 10px;
  margin-bottom: 40px;
  border-left: 4px solid #2e7d32;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

/* テキストスタイル */
.kpco2-text {
  font-size: 16px;
  line-height: 1.9;
  color: #333333;
  margin-bottom: 20px;
}

.kpco2-text:last-child {
  margin-bottom: 0;
}

.kpco2-strong-green {
  color: #2e7d32;
  font-weight: 700;
  font-size: 17px;
}

.kpco2-strong-blue {
  color: #1565c0;
  font-weight: 700;
  font-size: 17px;
}

.kpco2-strong-red {
  color: #d32f2f;
  font-weight: 700;
  font-size: 17px;
}

.kpco2-strong-purple {
  color: #7b1fa2;
  font-weight: 700;
  font-size: 17px;
}

.kpco2-strong-orange {
  color: #ff5722;
  font-weight: 700;
  font-size: 17px;
}

.kpco2-em-blue {
  color: #1565c0;
  font-weight: 600;
  border-bottom: 2px solid rgba(21, 101, 192, 0.3);
  padding-bottom: 1px;
}

.kpco2-term {
  color: #7b1fa2;
  font-weight: 600;
}

.kpco2-term-blue {
  color: #1565c0;
  font-weight: 700;
  font-size: 17px;
}

.kpco2-num-large {
  color: #ff5722;
  font-weight: 800;
  font-size: 20px;
}

.kpco2-function {
  color: #1976d2;
  font-weight: 600;
  background: rgba(25, 118, 210, 0.08);
  padding: 2px 6px;
  border-radius: 4px;
}

.kpco2-benefit {
  color: #2e7d32;
  font-weight: 700;
}

.kpco2-orange {
  color: #ff6f00;
  font-weight: 600;
}

.kpco2-reason {
  color: #ff6f00;
  font-weight: 600;
}

.kpco2-chemical {
  color: #7b1fa2;
  font-weight: 600;
  font-style: italic;
}

.kpco2-data {
  color: #1976d2;
  font-weight: 600;
}

.kpco2-strong-seasonal {
  color: #ff5722;
  font-weight: 700;
}

.kpco2-unique {
  color: #2e7d32;
  font-weight: 600;
  background: rgba(46, 125, 50, 0.08);
  padding: 2px 6px;
  border-radius: 4px;
}

.kpco2-factor {
  color: #7b1fa2;
  font-weight: 600;
}

.kpco2-genetic {
  color: #ff9800;
  font-weight: 600;
}

.kpco2-future {
  color: #4caf50;
  font-weight: 700;
}

.kpco2-achievement {
  color: #ffc107;
  font-weight: 600;
}

.kpco2-final-strong {
  color: #d32f2f;
  font-weight: 800;
  font-size: 18px;
}

/* コンテンツセクション */
.kpco2-content-section {
  background: #ffffff;
  padding: 35px;
  border-radius: 12px;
  margin-bottom: 40px;
  box-shadow: 0 3px 12px rgba(0,0,0,0.06);
}

/* サブタイトル */
.kpco2-subtitle {
  display: flex;
  align-items: center;
  gap: 15px;
  font-size: 24px;
  font-weight: 700;
  color: #2c3e50;
  margin-bottom: 25px;
  padding-bottom: 10px;
  border-bottom: 2px solid #e0e0e0;
}

.kpco2-num {
  background: linear-gradient(135deg, #2e7d32, #43a047);
  color: white;
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 16px;
  font-weight: 600;
}

/* フィーチャーグリッド */
.kpco2-feature-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 30px;
  margin-bottom: 25px;
  align-items: center;
}

.kpco2-feature-main {
  flex: 1;
}

.kpco2-data-panel {
  background: #f0f4f8;
  padding: 20px;
  border-radius: 10px;
  display: flex;
  gap: 30px;
}

.kpco2-data-item {
  text-align: center;
}

.kpco2-data-value {
  font-size: 24px;
  font-weight: 700;
  color: #2e7d32;
  margin-bottom: 8px;
}

.kpco2-data-label {
  font-size: 14px;
  color: #666;
}

/* 2カラムレイアウト */
.kpco2-two-column {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 30px;
  margin-bottom: 25px;
}

.kpco2-column-left {
  flex: 1;
}

.kpco2-info-box {
  background: #e8f5e9;
  padding: 20px;
  border-radius: 10px;
  border: 2px solid #4caf50;
}

.kpco2-info-title {
  font-size: 16px;
  font-weight: 700;
  color: #2e7d32;
  margin-bottom: 15px;
  margin-top: 0;
}

.kpco2-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.kpco2-list li {
  padding: 8px 0;
  padding-left: 20px;
  position: relative;
  color: #333;
}

.kpco2-list li:before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #4caf50;
  font-weight: bold;
}

/* ハイライトパネル */
.kpco2-highlight-panel {
  background: linear-gradient(135deg, #fff3e0, #ffffff);
  padding: 20px;
  border-radius: 10px;
  border-left: 4px solid #ff9800;
  margin-top: 20px;
}

.kpco2-highlight-text {
  font-size: 15px;
  line-height: 1.8;
  color: #333;
  margin: 0;
}

/* プロセスフロー */
.kpco2-process-flow {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  padding: 30px;
  background: #f8f9fa;
  border-radius: 10px;
  margin: 25px 0;
}

.kpco2-flow-item {
  text-align: center;
}

.kpco2-flow-icon {
  font-size: 32px;
  margin-bottom: 8px;
}

.kpco2-flow-text {
  font-size: 14px;
  font-weight: 600;
  color: #333;
}

.kpco2-flow-arrow {
  font-size: 24px;
  color: #1565c0;
  font-weight: bold;
}

/* バーチャート */
.kpco2-bar-chart {
  background: #f8f9fa;
  padding: 25px;
  border-radius: 10px;
  margin: 25px 0;
}

.kpco2-bar-row {
  margin-bottom: 20px;
}

.kpco2-bar-row:last-child {
  margin-bottom: 0;
}

.kpco2-bar-label {
  font-size: 14px;
  font-weight: 600;
  color: #555;
  margin-bottom: 8px;
}

.kpco2-bar-container {
  position: relative;
  height: 35px;
  background: #e0e0e0;
  border-radius: 20px;
  overflow: hidden;
}

.kpco2-bar {
  position: absolute;
  height: 100%;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 15px;
  animation: expandBar 1s ease-out;
}

.kpco2-bar.bar-green {
  background: linear-gradient(90deg, #4caf50, #8bc34a);
}

.kpco2-bar.bar-blue {
  background: linear-gradient(90deg, #2196f3, #03a9f4);
}

.kpco2-bar.bar-orange {
  background: linear-gradient(90deg, #ff9800, #ffc107);
}

.kpco2-bar-percent {
  color: white;
  font-weight: 700;
  font-size: 14px;
}

/* 季節グリッド */
.kpco2-season-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin: 30px 0;
}

.kpco2-season-card {
  background: #ffffff;
  padding: 20px;
  border-radius: 10px;
  text-align: center;
  border: 2px solid #e0e0e0;
  transition: all 0.3s ease;
}

.kpco2-season-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.kpco2-season-card.spring {
  border-color: #4caf50;
}

.kpco2-season-card.summer {
  border-color: #ff9800;
}

.kpco2-season-card.autumn {
  border-color: #ff5722;
}

.kpco2-season-card.winter {
  border-color: #9e9e9e;
}

.kpco2-season-icon {
  font-size: 32px;
  margin-bottom: 10px;
}

.kpco2-season-title {
  font-size: 16px;
  font-weight: 700;
  color: #333;
  margin: 10px 0;
}

.kpco2-season-text {
  font-size: 13px;
  color: #666;
  line-height: 1.5;
}

.kpco2-season-text strong {
  color: #2e7d32;
}

/* 画像コンテナ */
.kpco2-img-container {
  margin: 30px 0;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 3px 10px rgba(0,0,0,0.08);
}

.kpco2-img {
  width: 100%;
  height: auto;
  display: block;
}

.kpco2-img-caption {
  font-size: 13px;
  color: #7f8c8d;
  text-align: center;
  padding: 10px;
  background: #f8f9fa;
  margin: 0;
}

/* まとめセクション */
.kpco2-conclusion {
  background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
  padding: 40px;
  border-radius: 15px;
  margin-top: 50px;
  color: white;
  box-shadow: 0 5px 20px rgba(30, 60, 114, 0.3);
}

.kpco2-conclusion-title {
  font-size: 24px;
  font-weight: 700;
  color: white;
  margin-bottom: 25px;
  text-align: center;
}

.kpco2-summary-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin: 30px 0;
}

.kpco2-summary-item {
  background: rgba(255, 255, 255, 0.95);
  padding: 20px;
  border-radius: 10px;
  text-align: center;
}

.kpco2-summary-icon {
  font-size: 32px;
  margin-bottom: 10px;
}

.kpco2-summary-text {
  font-size: 13px;
  color: #333;
  font-weight: 600;
  line-height: 1.4;
}

.kpco2-final-text {
  font-size: 16px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.95);
  text-align: center;
  margin-top: 25px;
}

/* アニメーション */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes expandBar {
  from {
    width: 0;
  }
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
  .kpco2-main-section {
    padding: 40px 15px;
  }
  
  .kpco2-title {
    font-size: 26px;
  }
  
  .kpco2-subtitle {
    font-size: 20px;
  }
  
  .kpco2-content-section {
    padding: 25px 20px;
  }
  
  .kpco2-feature-grid,
  .kpco2-two-column {
    grid-template-columns: 1fr;
  }
  
  .kpco2-data-panel {
    flex-direction: column;
    gap: 15px;
  }
  
  .kpco2-season-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .kpco2-summary-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .kpco2-process-flow {
    flex-direction: column;
  }
  
  .kpco2-flow-arrow {
    transform: rotate(90deg);
  }
}

@media (max-width: 480px) {
  .kpco2-title {
    font-size: 22px;
  }
  
  .kpco2-subtitle {
    font-size: 18px;
    flex-direction: column;
    align-items: flex-start;
  }
  
  .kpco2-season-grid,
  .kpco2-summary-grid {
    grid-template-columns: 1fr;
  }
  
  .kpco2-conclusion {
    padding: 30px 20px;
  }
  
  .kpco2-conclusion-title {
    font-size: 20px;
  }
}


/* 根系の発達とCO₂固定への貢献 専用CSS */

/* セクション全体 - 白背景対応 */
.rco2-root-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 20px;
  background: #f8f9fa;
  font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
  color: #2c3e50;
  line-height: 1.8;
  border-radius: 12px;
  box-shadow: 0 3px 15px rgba(0,0,0,0.06);
  border: 1px solid #e0e0e0;
}

/* メインヘッダー */
.rco2-main-header {
  text-align: center;
  margin-bottom: 50px;
  animation: fadeInUp 0.5s ease-out;
}

.rco2-main-title {
  font-size: 34px;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.rco2-title-icon {
  font-size: 38px;
}

.rco2-accent-green {
  color: #2e7d32;
  font-weight: 800;
  background: linear-gradient(180deg, transparent 70%, rgba(46, 125, 50, 0.2) 70%);
}

.rco2-header-line {
  width: 100px;
  height: 4px;
  background: linear-gradient(90deg, #2e7d32, #66bb6a);
  margin: 0 auto;
  border-radius: 2px;
}

/* 導入セクション */
.rco2-intro-wrapper {
  background: #ffffff;
  padding: 30px;
  border-radius: 10px;
  margin-bottom: 40px;
  border-left: 5px solid #2e7d32;
  box-shadow: 0 2px 10px rgba(0,0,0,0.04);
}

.rco2-intro-text {
  font-size: 16px;
  line-height: 1.9;
  color: #34495e;
  margin: 0;
}

/* テキストスタイル */
.rco2-text {
  font-size: 15px;
  line-height: 1.9;
  color: #34495e;
  margin-bottom: 18px;
}

.rco2-text:last-child {
  margin-bottom: 0;
}

.rco2-strong-blue {
  color: #1565c0;
  font-weight: 700;
  font-size: 17px;
}

.rco2-strong-green {
  color: #2e7d32;
  font-weight: 700;
  font-size: 17px;
}

.rco2-strong-red {
  color: #d32f2f;
  font-weight: 700;
  font-size: 17px;
}

.rco2-strong-purple {
  color: #7b1fa2;
  font-weight: 700;
  font-size: 17px;
}

.rco2-strong-orange {
  color: #ff5722;
  font-weight: 700;
  font-size: 17px;
}

.rco2-strong-highlight {
  color: #ff6f00;
  font-weight: 700;
  font-size: 17px;
  background: rgba(255, 111, 0, 0.08);
  padding: 2px 6px;
  border-radius: 3px;
}

.rco2-em-green {
  color: #2e7d32;
  font-weight: 600;
  border-bottom: 2px dotted rgba(46, 125, 50, 0.4);
}

.rco2-em-blue {
  color: #1976d2;
  font-weight: 600;
  background: rgba(25, 118, 210, 0.06);
  padding: 1px 4px;
  border-radius: 3px;
}

.rco2-num-large {
  color: #ff5722;
  font-weight: 800;
  font-size: 20px;
  text-shadow: 1px 1px 2px rgba(0,0,0,0.05);
}

.rco2-highlight {
  color: #ff6f00;
  font-weight: 600;
  background: rgba(255, 111, 0, 0.08);
  padding: 2px 6px;
  border-radius: 3px;
}

.rco2-benefit {
  color: #4caf50;
  font-weight: 700;
}

.rco2-data {
  color: #1976d2;
  font-weight: 600;
}

.rco2-term {
  color: #7b1fa2;
  font-weight: 600;
  font-style: italic;
}

.rco2-term-emphasis {
  color: #d32f2f;
  font-weight: 700;
  font-size: 16px;
  background: rgba(211, 47, 47, 0.06);
  padding: 2px 6px;
  border-radius: 3px;
}

.rco2-exchange {
  color: #ff9800;
  font-weight: 600;
}

.rco2-special {
  color: #ff5722;
  font-weight: 600;
}

.rco2-function {
  color: #1976d2;
  font-weight: 600;
}

.rco2-negative {
  color: #f44336;
  font-weight: 600;
}

.rco2-advantage {
  color: #4caf50;
  font-weight: 600;
  background: rgba(76, 175, 80, 0.08);
  padding: 2px 6px;
  border-radius: 3px;
}

.rco2-final-strong {
  color: #2e7d32;
  font-weight: 800;
  font-size: 18px;
}

/* セクションヘッディング */
.rco2-section-heading {
  display: flex;
  align-items: center;
  gap: 15px;
  font-size: 24px;
  font-weight: 700;
  color: #2c3e50;
  margin-bottom: 30px;
  padding-bottom: 12px;
  border-bottom: 2px solid #e0e0e0;
}

.rco2-heading-num {
  background: linear-gradient(135deg, #1565c0, #42a5f5);
  color: white;
  padding: 6px 14px;
  border-radius: 25px;
  font-size: 16px;
  font-weight: 600;
}

.rco2-heading-text {
  flex: 1;
}

/* 深さビジュアル */
.rco2-depth-visual {
  background: #ffffff;
  padding: 35px;
  border-radius: 12px;
  margin-bottom: 40px;
  box-shadow: 0 3px 12px rgba(0,0,0,0.05);
}

.rco2-depth-container {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 40px;
  margin-bottom: 30px;
  align-items: center;
}

.rco2-depth-scale {
  position: relative;
  height: 300px;
  background: linear-gradient(180deg, #e3f2fd 0%, #1565c0 100%);
  border-radius: 10px;
  padding: 20px;
}

.rco2-depth-marker {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  background: white;
  padding: 10px 15px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.rco2-depth-marker.year1 {
  top: 30%;
}

.rco2-depth-marker.year2 {
  top: 70%;
}

.rco2-depth-label {
  display: block;
  font-size: 14px;
  color: #666;
  margin-bottom: 5px;
}

.rco2-depth-value {
  display: block;
  font-size: 20px;
  font-weight: 700;
  color: #1565c0;
}

/* 炭素プール */
.rco2-carbon-pool {
  background: linear-gradient(135deg, #ffffff 0%, #f5f5f5 100%);
  padding: 35px;
  border-radius: 12px;
  margin-bottom: 40px;
  border: 1px solid #e0e0e0;
}

.rco2-percentage-display {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 40px;
  align-items: center;
}

.rco2-percentage-circle {
  position: relative;
  width: 200px;
  height: 200px;
  margin: 0 auto;
}

.rco2-circle-svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.rco2-circle-bg {
  fill: none;
  stroke: #e0e0e0;
  stroke-width: 15;
}

.rco2-circle-progress {
  fill: none;
  stroke: #4caf50;
  stroke-width: 15;
  stroke-linecap: round;
  animation: fillCircle 1.5s ease-out;
}

.rco2-percentage-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}

.rco2-percentage-num {
  display: block;
  font-size: 32px;
  font-weight: 700;
  color: #2e7d32;
}

.rco2-percentage-label {
  display: block;
  font-size: 14px;
  color: #666;
  margin-top: 5px;
}

/* 共生フロー */
.rco2-symbiosis {
  background: #ffffff;
  padding: 35px;
  border-radius: 12px;
  margin-bottom: 40px;
  box-shadow: 0 3px 12px rgba(0,0,0,0.05);
}

.rco2-symbiosis-flow {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 30px;
  padding: 30px;
  background: #f8f9fa;
  border-radius: 10px;
  margin: 25px 0;
}

.rco2-flow-box {
  background: white;
  padding: 25px;
  border-radius: 10px;
  text-align: center;
  width: 200px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
  transition: transform 0.3s ease;
}

.rco2-flow-box:hover {
  transform: translateY(-5px);
}

.rco2-flow-box.tree {
  border: 2px solid #4caf50;
}

.rco2-flow-box.fungi {
  border: 2px solid #ff9800;
}

.rco2-flow-icon {
  font-size: 36px;
  margin-bottom: 10px;
}

.rco2-flow-title {
  font-size: 16px;
  font-weight: 700;
  color: #2c3e50;
  margin: 10px 0;
}

.rco2-flow-desc {
  font-size: 13px;
  color: #666;
}

.rco2-flow-arrows {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.rco2-arrow-right,
.rco2-arrow-left {
  font-size: 24px;
  color: #1565c0;
  font-weight: bold;
}

/* メカニズムグリッド */
.rco2-carbon-sequestration {
  background: linear-gradient(135deg, #f5f5f5 0%, #ffffff 100%);
  padding: 35px;
  border-radius: 12px;
  margin-bottom: 40px;
  border: 1px solid #e0e0e0;
}

.rco2-mechanism-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 30px 0;
}

.rco2-mechanism-card {
  background: white;
  padding: 25px;
  border-radius: 10px;
  text-align: center;
  border: 2px solid #e8f5e9;
  transition: all 0.3s ease;
}

.rco2-mechanism-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 5px 15px rgba(76, 175, 80, 0.2);
  border-color: #4caf50;
}

.rco2-card-icon {
  font-size: 32px;
  margin-bottom: 15px;
}

.rco2-card-title {
  font-size: 16px;
  font-weight: 700;
  color: #2e7d32;
  margin-bottom: 10px;
}

.rco2-card-text {
  font-size: 13px;
  color: #666;
  line-height: 1.6;
}

.rco2-highlight-box {
  background: linear-gradient(135deg, #fff8e1, #ffffff);
  padding: 25px;
  border-radius: 10px;
  border-left: 4px solid #ff9800;
  margin-top: 25px;
}

.rco2-highlight-text {
  font-size: 15px;
  line-height: 1.9;
  color: #34495e;
  margin: 0;
}

/* 根呼吸比較 */
.rco2-root-respiration {
  background: #ffffff;
  padding: 35px;
  border-radius: 12px;
  margin-bottom: 40px;
  box-shadow: 0 3px 12px rgba(0,0,0,0.05);
}

.rco2-efficiency-comparison {
  background: #f8f9fa;
  border-radius: 10px;
  padding: 25px;
  margin: 25px 0;
}

.rco2-comparison-header {
  text-align: center;
  margin-bottom: 25px;
}

.rco2-comparison-title {
  font-size: 18px;
  font-weight: 700;
  color: #2c3e50;
  margin: 0;
}

.rco2-comparison-content {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 30px;
}

.rco2-comparison-item {
  background: white;
  padding: 20px;
  border-radius: 10px;
  text-align: center;
  width: 200px;
}

.rco2-comparison-item.negative {
  border: 2px solid #ff5252;
}

.rco2-comparison-item.positive {
  border: 2px solid #4caf50;
}

.rco2-comparison-icon {
  font-size: 32px;
  margin-bottom: 10px;
}

.rco2-comparison-label {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}

.rco2-comparison-item.negative .rco2-comparison-label {
  color: #f44336;
}

.rco2-comparison-item.positive .rco2-comparison-label {
  color: #4caf50;
}

.rco2-comparison-desc {
  font-size: 13px;
  color: #666;
  line-height: 1.5;
}

.rco2-comparison-versus {
  font-size: 24px;
  font-weight: 700;
  color: #1565c0;
}

/* 画像 */
.rco2-img-wrapper {
  margin: 30px 0;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 3px 12px rgba(0,0,0,0.08);
}

.rco2-img {
  width: 100%;
  height: auto;
  display: block;
}

.rco2-img-caption {
  font-size: 13px;
  color: #7f8c8d;
  text-align: center;
  padding: 10px;
  background: #f8f9fa;
  margin: 0;
}

/* まとめ */
.rco2-conclusion {
  background: linear-gradient(135deg, #1a237e 0%, #3949ab 100%);
  padding: 40px;
  border-radius: 15px;
  margin-top: 50px;
  box-shadow: 0 5px 20px rgba(26, 35, 126, 0.3);
}

.rco2-conclusion-inner {
  text-align: center;
}

.rco2-conclusion-title {
  font-size: 26px;
  font-weight: 700;
  color: white;
  margin-bottom: 30px;
}

.rco2-summary-points {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 30px;
}

.rco2-point {
  background: rgba(255, 255, 255, 0.95);
  padding: 15px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.rco2-point-icon {
  font-size: 24px;
}

.rco2-point-text {
  font-size: 14px;
  color: #333;
  font-weight: 600;
  flex: 1;
  text-align: left;
}

.rco2-conclusion-text {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.95);
  line-height: 1.8;
}

.rco2-conclusion-text strong {
  color: #4caf50;
  font-weight: 700;
}

/* アニメーション */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fillCircle {
  from {
    stroke-dashoffset: 283;
  }
  to {
    stroke-dashoffset: 198;
  }
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
  .rco2-root-section {
    padding: 40px 15px;
  }
  
  .rco2-main-title {
    font-size: 28px;
    flex-direction: column;
  }
  
  .rco2-section-heading {
    font-size: 20px;
  }
  
  .rco2-depth-container,
  .rco2-percentage-display {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .rco2-depth-scale {
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
  }
  
  .rco2-mechanism-grid {
    grid-template-columns: 1fr;
  }
  
  .rco2-symbiosis-flow {
    flex-direction: column;
  }
  
  .rco2-flow-arrows {
    flex-direction: row;
  }
  
  .rco2-arrow-right,
  .rco2-arrow-left {
    transform: rotate(90deg);
  }
  
  .rco2-comparison-content {
    flex-direction: column;
  }
  
  .rco2-summary-points {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .rco2-main-title {
    font-size: 24px;
  }
  
  .rco2-section-heading {
    font-size: 18px;
    flex-direction: column;
    align-items: flex-start;
  }
  
  .rco2-flow-box {
    width: 100%;
  }
  
  .rco2-comparison-item {
    width: 100%;
  }
  
  .rco2-conclusion {
    padding: 30px 20px;
  }
  
  .rco2-conclusion-title {
    font-size: 22px;
  }
}

/* 樹齢とCO₂固定能力セクション *//* 樹齢とCO₂固定能力セクション *//* 樹齢とCO₂固定能力セクション */
/* 樹齢とCO₂固定能力セクション *//* 樹齢とCO₂固定能力セクション *//* 樹齢とCO₂固定能力セクション */
/* ベースセクション設定 */
.tree-age-co2-section {
  background: linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%);
  padding: 80px 20px;
  font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
  color: #2c3e50;
  line-height: 1.8;
  position: relative;
  overflow: hidden;
}

.tree-age-co2-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #2e7d32 0%, #66bb6a 50%, #2e7d32 100%);
}

.section-wrapper {
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
}

/* タイトルコンテナ */
.title-container {
  text-align: center;
  margin-bottom: 60px;
  animation: fadeInUp 0.8s ease-out;
}

.main-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 15px;
  letter-spacing: 0.5px;
  position: relative;
  display: inline-block;
}

.title-accent {
  background: linear-gradient(135deg, #2e7d32 0%, #43a047 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  font-size: 16px;
  color: #666;
  font-weight: 400;
  letter-spacing: 1px;
}

/* 導入部 */
.introduction-block {
  background: white;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 2px 20px rgba(0,0,0,0.08);
  margin-bottom: 50px;
  border-left: 4px solid #2e7d32;
}

.lead-text {
  font-size: 17px;
  line-height: 1.9;
  color: #444;
  margin: 0;
}

/* ハイライトテキスト */
.highlight-text {
  color: #2e7d32;
  font-weight: 600;
  background: linear-gradient(180deg, transparent 60%, rgba(46, 125, 50, 0.1) 60%);
  padding: 2px 4px;
}

.emphasis {
  color: #1976d2;
  font-weight: 500;
}

.emphasis-underline {
  text-decoration: underline;
  text-decoration-color: #43a047;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
  font-weight: 600;
}

/* コンテンツグリッド */
.content-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-bottom: 60px;
}

/* フィーチャーカード */
.feature-card {
  background: white;
  border-radius: 16px;
  padding: 0;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  transition: all 0.3s ease;
  overflow: hidden;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.highlight-card {
  background: linear-gradient(135deg, #ffffff 0%, #f1f8e9 100%);
  border: 2px solid #66bb6a;
}

.card-header {
  background: linear-gradient(135deg, #f5f5f5 0%, #fafafa 100%);
  padding: 20px 25px;
  border-bottom: 1px solid #e0e0e0;
  display: flex;
  align-items: center;
  gap: 15px;
}

.highlight-card .card-header {
  background: linear-gradient(135deg, #e8f5e9 0%, #f1f8e9 100%);
  border-bottom-color: #a5d6a7;
}

.icon-wrapper {
  width: 40px;
  height: 40px;
  background: #2e7d32;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.card-icon {
  width: 24px;
  height: 24px;
  fill: white;
}

.card-title {
  font-size: 18px;
  font-weight: 700;
  color: #2c3e50;
  margin: 0;
}

.card-content {
  padding: 25px;
}

.card-content p {
  margin: 0;
  line-height: 1.8;
  color: #555;
}

/* データハイライト */
.data-highlight {
  color: #ff6f00;
  font-weight: 700;
  font-size: 1.05em;
}

.primary-text {
  color: #2e7d32;
  font-weight: 700;
  font-size: 1.05em;
}

.large-data {
  display: inline-block;
  padding: 4px 12px;
  background: linear-gradient(135deg, #fff3e0 0%, #ffe0b2 100%);
  border-radius: 20px;
  color: #e65100;
  font-weight: 700;
  font-size: 1.1em;
  margin: 0 4px;
}

/* データビジュアライゼーション */
.data-visualization {
  background: white;
  border-radius: 20px;
  padding: 40px;
  box-shadow: 0 6px 30px rgba(0,0,0,0.1);
  margin-bottom: 60px;
}

.chart-container {
  position: relative;
}

.section-subtitle {
  font-size: 22px;
  font-weight: 700;
  color: #2c3e50;
  margin-bottom: 30px;
  padding-bottom: 15px;
  border-bottom: 2px solid #e0e0e0;
  position: relative;
}

.section-subtitle::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 80px;
  height: 2px;
  background: #2e7d32;
}

/* 画像プレースホルダー */
.image-placeholder {
  background: linear-gradient(135deg, #f5f5f5 0%, #eeeeee 100%);
  border: 2px dashed #bdbdbd;
  border-radius: 12px;
  padding: 40px;
  margin: 30px 0;
  text-align: center;
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.image-placeholder.secondary {
  min-height: 250px;
  background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
}

.placeholder-content {
  width: 100%;
}

.placeholder-icon {
  max-width: 400px;
  height: auto;
  opacity: 0.7;
}

.image-instruction {
  margin-top: 20px;
  font-size: 14px;
  color: #666;
  font-style: italic;
}

/* データポイント */
.data-points {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-top: 40px;
}

.data-item {
  padding: 20px;
  background: #f8f9fa;
  border-radius: 12px;
  border-left: 4px solid #9e9e9e;
  transition: all 0.3s ease;
}

.data-item.primary {
  background: linear-gradient(135deg, #e8f5e9 0%, #f1f8e9 100%);
  border-left-color: #2e7d32;
  transform: scale(1.05);
}

.data-item:hover {
  transform: translateX(5px);
}

.data-label {
  display: block;
  font-size: 14px;
  color: #666;
  margin-bottom: 8px;
  font-weight: 500;
}

.data-value {
  display: block;
  font-size: 20px;
  font-weight: 700;
  color: #2c3e50;
}

.data-item.primary .data-value {
  color: #2e7d32;
}

/* 詳細セクション */
.detail-section {
  margin-bottom: 50px;
}

.text-block {
  background: white;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 2px 15px rgba(0,0,0,0.08);
}

.text-block p {
  margin: 0;
  line-height: 1.9;
  color: #444;
}

/* ナンバーバッジ */
.number-badge {
  display: inline-block;
  background: #2e7d32;
  color: white;
  padding: 4px 12px;
  border-radius: 20px;
  font-weight: 600;
  font-size: 14px;
  margin-right: 8px;
}

/* パターンセクション */
.pattern-section {
  background: white;
  border-radius: 20px;
  padding: 40px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  margin-bottom: 50px;
}

/* インフォカード */
.info-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 25px;
  margin: 30px 0;
}

.info-card {
  background: linear-gradient(135deg, #fafafa 0%, #f5f5f5 100%);
  padding: 25px;
  border-radius: 12px;
  border: 1px solid #e0e0e0;
  transition: all 0.3s ease;
}

.info-card:hover {
  background: white;
  box-shadow: 0 6px 20px rgba(0,0,0,0.1);
  transform: translateY(-3px);
}

.info-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 15px;
}

.info-icon {
  font-size: 24px;
}

.info-header h5 {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: #2c3e50;
}

.info-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: #555;
}

/* ハイライトボックス */
.highlight-box {
  background: linear-gradient(135deg, #fff8e1 0%, #ffecb3 100%);
  border: 2px solid #ffc107;
  border-radius: 12px;
  padding: 25px;
  margin-top: 30px;
}

.highlight-box p {
  margin: 0;
  line-height: 1.9;
  color: #444;
}

/* 光合成セクション */
.photosynthesis-section {
  background: white;
  border-radius: 20px;
  padding: 40px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  margin-bottom: 50px;
}

.text-content {
  margin-top: 30px;
}

.text-content p {
  margin-bottom: 20px;
  line-height: 1.9;
  color: #444;
}

.text-content p:last-child {
  margin-bottom: 0;
}

/* サマリーセクション */
.summary-section {
  background: linear-gradient(135deg, #e8f5e9 0%, #f1f8e9 100%);
  border-radius: 20px;
  padding: 40px;
  border: 2px solid #66bb6a;
  margin-top: 60px;
}

.summary-content p {
  margin: 0;
  font-size: 17px;
  line-height: 1.9;
  color: #2c3e50;
}

/* アニメーション */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
  .tree-age-co2-section {
    padding: 40px 15px;
  }
  
  .content-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .data-points {
    grid-template-columns: 1fr;
  }
  
  .info-cards {
    grid-template-columns: 1fr;
  }
  
  .main-title {
    font-size: 24px;
  }
  
  .section-subtitle {
    font-size: 18px;
  }
  
  .introduction-block,
  .text-block,
  .data-visualization,
  .pattern-section,
  .photosynthesis-section {
    padding: 20px;
  }
  
  .card-content {
    padding: 20px;
  }
  
  .data-item {
    padding: 15px;
  }
  
  .data-item.primary {
    transform: none;
  }
}

@media (max-width: 480px) {
  .main-title {
    font-size: 20px;
  }
  
  .subtitle {
    font-size: 14px;
  }
  
  .lead-text {
    font-size: 15px;
  }
  
  .card-title {
    font-size: 16px;
  }
  
  .large-data {
    font-size: 1em;
    padding: 3px 8px;
  }
}

<style>
/* 木材組織とCO₂固定セクション */
.wood-co2-fixation-section-unique2025 {
  background: #ffffff;
  padding: 60px 0;
  font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  position: relative;
  overflow: hidden;
}

.wood-co2-fixation-section-unique2025::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #1b5e20, #4caf50, #81c784, #4caf50, #1b5e20);
}

.wcs-container-wrapper {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ヒーローヘッダー */
.wcs-hero-header {
  text-align: center;
  margin-bottom: 50px;
  padding: 40px 20px;
  background: linear-gradient(135deg, #f5f5f5 0%, #fafafa 100%);
  border-radius: 20px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.05);
  animation: fadeIn-Up 0.6s ease-out;
}

.wcs-main-heading {
  font-size: clamp(26px, 3.5vw, 38px);
  font-weight: 700;
  color: #263238;
  margin-bottom: 15px;
  letter-spacing: 0.5px;
}

.wcs-title-highlight {
  color: #1b5e20;
  background: linear-gradient(180deg, transparent 70%, rgba(76, 175, 80, 0.2) 70%);
  padding: 0 5px;
}

.wcs-title-accent {
  color: #ff6f00;
  font-weight: 800;
}

.wcs-subtitle-line {
  font-size: 15px;
  color: #607d8b;
  letter-spacing: 1px;
  font-weight: 400;
}

/* ジグザグレイアウト */
.wcs-intro-zigzag {
  margin-bottom: 60px;
}

.wcs-zigzag-item {
  margin-bottom: 30px;
  animation: fadeIn-Left 0.8s ease-out;
}

.wcs-content-box {
  background: white;
  padding: 30px;
  border-radius: 15px;
  box-shadow: 0 3px 15px rgba(0,0,0,0.08);
  border-left: 4px solid #2e7d32;
  transition: transform 0.3s ease;
}

.wcs-content-box:hover {
  transform: translateX(10px);
}

.wcs-box-header {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 20px;
}

.wcs-icon-circle {
  width: 45px;
  height: 45px;
  background: linear-gradient(135deg, #c8e6c9, #a5d6a7);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

.wcs-box-title {
  font-size: 20px;
  font-weight: 700;
  color: #1b5e20;
  margin: 0;
}

.wcs-text-content {
  font-size: 16px;
  line-height: 1.8;
  color: #424242;
  margin: 0;
}

.wcs-strong-text {
  color: #1b5e20;
  font-weight: 700;
  font-size: 1.05em;
}

.wcs-emphasis-text {
  color: #ff6f00;
  font-weight: 600;
  background: rgba(255, 111, 0, 0.1);
  padding: 2px 6px;
  border-radius: 4px;
}

/* サークル型レイアウト */
.wcs-compounds-section {
  margin-bottom: 70px;
  padding: 50px 20px;
  background: linear-gradient(180deg, #fafafa 0%, #ffffff 100%);
  border-radius: 25px;
}

.wcs-section-title {
  font-size: 24px;
  font-weight: 700;
  color: #263238;
  text-align: center;
  margin-bottom: 40px;
  position: relative;
  padding-bottom: 15px;
}

.wcs-section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background: linear-gradient(90deg, #1b5e20, #4caf50);
  border-radius: 2px;
}

.wcs-circular-layout {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  min-height: 500px;
}

.wcs-center-hub {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 120px;
  height: 120px;
  background: linear-gradient(135deg, #1b5e20, #2e7d32);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 16px;
  text-align: center;
  box-shadow: 0 8px 25px rgba(27, 94, 32, 0.3);
  z-index: 10;
}

.wcs-compound-item {
  position: absolute;
  width: 250px;
  animation: fadeIn 1s ease-out calc(var(--item-index) * 0.2s) both;
}

.wcs-compound-item:nth-child(2) {
  top: 0;
  left: 50%;
  transform: translateX(-50%);
}

.wcs-compound-item:nth-child(3) {
  bottom: 20px;
  left: 0;
}

.wcs-compound-item:nth-child(4) {
  bottom: 20px;
  right: 0;
}

.wcs-compound-card {
  background: white;
  padding: 20px;
  border-radius: 15px;
  box-shadow: 0 5px 20px rgba(0,0,0,0.1);
  transition: all 0.3s ease;
}

.wcs-compound-card:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}

.wcs-compound-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 15px;
}

.wcs-compound-icon {
  width: 35px;
  height: 35px;
  background: linear-gradient(135deg, #4caf50, #66bb6a);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 18px;
}

.wcs-compound-name {
  font-size: 16px;
  font-weight: 700;
  color: #1b5e20;
  margin: 0;
}

.wcs-compound-desc {
  font-size: 14px;
  line-height: 1.7;
  color: #546e7a;
  margin: 0;
}

.wcs-highlight-green {
  color: #1b5e20;
  font-weight: 700;
}

.wcs-highlight-blue {
  color: #0277bd;
  font-weight: 700;
}

.wcs-highlight-orange {
  color: #e65100;
  font-weight: 700;
}

.wcs-underline-text {
  text-decoration: underline;
  text-decoration-color: #4caf50;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.wcs-color-text {
  color: #00695c;
  font-weight: 600;
}

.wcs-bold-text {
  font-weight: 700;
  color: #263238;
}

/* インフォグラフィックセクション */
.wcs-infographic-section {
  margin-bottom: 60px;
  padding: 40px;
  background: white;
  border-radius: 20px;
  box-shadow: 0 5px 25px rgba(0,0,0,0.08);
}

.wcs-lead-paragraph {
  font-size: 17px;
  line-height: 1.9;
  color: #37474f;
  margin-bottom: 30px;
}

.wcs-gradient-text {
  background: linear-gradient(90deg, #1b5e20, #4caf50);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
}

.wcs-big-number {
  font-size: 32px;
  font-weight: 800;
  color: #ff6f00;
  display: inline-block;
  margin: 0 5px;
  animation: pulse 2s infinite;
}

.wcs-highlight-box {
  background: linear-gradient(135deg, #fff9c4, #ffecb3);
  padding: 8px 15px;
  border-radius: 8px;
  border-left: 3px solid #ffa000;
  font-weight: 600;
  color: #e65100;
}

/* データビジュアライゼーション */
.wcs-data-visual {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 25px;
  margin-top: 30px;
}

.wcs-data-card {
  padding: 25px;
  border-radius: 15px;
  text-align: center;
  transition: all 0.3s ease;
}

.wcs-data-card.primary {
  background: linear-gradient(135deg, #e8f5e9, #c8e6c9);
  border: 2px solid #4caf50;
}

.wcs-data-card.secondary {
  background: linear-gradient(135deg, #fff3e0, #ffe0b2);
  border: 2px solid #ff9800;
}

.wcs-data-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.wcs-data-icon {
  font-size: 36px;
  margin-bottom: 15px;
}

.wcs-data-label {
  display: block;
  font-size: 14px;
  color: #607d8b;
  margin-bottom: 5px;
}

.wcs-data-value {
  display: block;
  font-size: 28px;
  font-weight: 800;
  color: #1b5e20;
  margin: 10px 0;
}

.wcs-data-unit {
  display: block;
  font-size: 13px;
  color: #78909c;
}

/* 画像プレースホルダー */
.wcs-image-placeholder {
  margin: 40px 0;
  width: 100%;
}

.wcs-image-placeholder.secondary {
  margin-top: 30px;
}

.wcs-image-container {
  background: linear-gradient(135deg, #f5f5f5, #e0e0e0);
  border: 2px dashed #9e9e9e;
  border-radius: 15px;
  padding: 60px 20px;
  text-align: center;
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.wcs-placeholder-icon {
  font-size: 48px;
  display: block;
  margin-bottom: 15px;
  opacity: 0.6;
}

.wcs-placeholder-text {
  font-size: 14px;
  color: #757575;
  font-style: italic;
  margin: 0;
}

/* アコーディオンセクション */
.wcs-features-section {
  margin-bottom: 60px;
}

.wcs-accordion-container {
  background: white;
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.wcs-accordion-item {
  border-bottom: 1px solid #e0e0e0;
}

.wcs-accordion-item:last-child {
  border-bottom: none;
}

.wcs-accordion-header {
  padding: 25px;
  background: linear-gradient(135deg, #fafafa, #f5f5f5);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 15px;
  transition: all 0.3s ease;
}

.wcs-accordion-header:hover {
  background: linear-gradient(135deg, #e8f5e9, #f1f8e9);
}

.wcs-accordion-item.expanded .wcs-accordion-header {
  background: linear-gradient(135deg, #c8e6c9, #e8f5e9);
}

.wcs-number-badge {
  background: #1b5e20;
  color: white;
  padding: 5px 12px;
  border-radius: 20px;
  font-weight: 700;
  font-size: 14px;
}

.wcs-accordion-header h5 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  color: #263238;
}

.wcs-accordion-content {
  padding: 0 25px;
  max-height: 0;
  overflow: hidden;
  transition: all 0.4s ease;
}

.wcs-accordion-item.expanded .wcs-accordion-content {
  padding: 25px;
  max-height: 500px;
}

.wcs-accordion-content p {
  font-size: 15px;
  line-height: 1.8;
  color: #455a64;
  margin: 0;
}

.wcs-color-primary {
  color: #1b5e20;
  font-weight: 700;
}

.wcs-highlight-yellow {
  background: rgba(255, 235, 59, 0.2);
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: 600;
}

.wcs-emphasis-bold {
  font-weight: 800;
  color: #263238;
}

.wcs-color-green {
  color: #2e7d32;
  font-weight: 600;
}

/* 化学組成セクション */
.wcs-composition-section {
  margin-bottom: 60px;
  padding: 40px;
  background: linear-gradient(135deg, #fafafa, #ffffff);
  border-radius: 20px;
}

.wcs-composition-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-bottom: 30px;
}

.wcs-comp-item {
  background: white;
  border-radius: 15px;
  padding: 25px;
  box-shadow: 0 3px 15px rgba(0,0,0,0.08);
  transition: all 0.3s ease;
}

.wcs-comp-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}

.wcs-comp-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.wcs-comp-icon {
  font-size: 28px;
}

.wcs-comp-header h5 {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  color: #1b5e20;
}

.wcs-comp-value {
  display: block;
  font-size: 32px;
  font-weight: 800;
  color: #ff6f00;
  margin-bottom: 15px;
}

.wcs-comp-desc {
  font-size: 14px;
  line-height: 1.7;
  color: #546e7a;
  margin: 0;
}

.wcs-highlight-text {
  color: #1b5e20;
  font-weight: 700;
}

.wcs-color-orange {
  color: #e65100;
  font-weight: 700;
}

.wcs-explanation-box {
  background: linear-gradient(135deg, #e3f2fd, #e1f5fe);
  padding: 25px;
  border-radius: 12px;
  border-left: 4px solid #0277bd;
}

.wcs-explanation-box p {
  font-size: 15px;
  line-height: 1.8;
  color: #37474f;
  margin: 0;
}

.wcs-important-text {
  color: #0277bd;
  font-weight: 700;
  background: rgba(2, 119, 189, 0.1);
  padding: 2px 6px;
  border-radius: 4px;
}

/* 戦略セクション */
.wcs-strategy-section {
  margin-top: 60px;
  padding: 50px 40px;
  background: linear-gradient(135deg, #1b5e20, #2e7d32);
  border-radius: 25px;
  color: white;
}

.wcs-strategy-header {
  margin-bottom: 30px;
}

.wcs-strategy-header .wcs-section-title {
  color: white;
}

.wcs-strategy-header .wcs-section-title::after {
  background: linear-gradient(90deg, #81c784, #a5d6a7);
}

.wcs-strategy-box {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: 30px;
  border-radius: 15px;
  margin-bottom: 30px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.wcs-strategy-icon {
  font-size: 48px;
  text-align: center;
  display: block;
  margin-bottom: 20px;
}

.wcs-strategy-text {
  font-size: 16px;
  line-height: 1.9;
  color: white;
  margin: 0;
}

.wcs-big-text {
  font-size: 24px;
  font-weight: 800;
  color: #ffeb3b;
  display: inline-block;
  margin: 0 5px;
}

.wcs-underline-important {
  text-decoration: underline;
  text-decoration-color: #ffeb3b;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
  font-weight: 600;
}

.wcs-pros-cons {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 25px;
}

.wcs-pros, .wcs-cons {
  background: rgba(255, 255, 255, 0.15);
  padding: 25px;
  border-radius: 12px;
  backdrop-filter: blur(5px);
}

.wcs-pros-title, .wcs-cons-title {
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 15px 0;
  color: white;
}

.wcs-pros p, .wcs-cons p {
  font-size: 15px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.95);
  margin: 0;
}

.wcs-color-success {
  color: #76ff03;
  font-weight: 700;
}

.wcs-color-warning {
  color: #ffeb3b;
  font-weight: 600;
}

/* アニメーション */
@keyframes fadeIn-Up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn-Left {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
  .wood-co2-fixation-section-unique2025 {
    padding: 40px 0;
  }
  
  .wcs-container-wrapper {
    padding: 0 15px;
  }
  
  .wcs-hero-header {
    padding: 30px 15px;
  }
  
  .wcs-main-heading {
    font-size: 24px;
  }
  
  .wcs-circular-layout {
    min-height: auto;
    padding: 20px 0;
  }
  
  .wcs-compound-item {
    position: static;
    width: 100%;
    margin-bottom: 20px;
  }
  
  .wcs-center-hub {
    position: static;
    transform: none;
    margin: 0 auto 30px;
  }
  
  .wcs-data-visual {
    grid-template-columns: 1fr;
  }
  
  .wcs-composition-grid {
    grid-template-columns: 1fr;
  }
  
  .wcs-pros-cons {
    grid-template-columns: 1fr;
  }
  
  .wcs-strategy-section {
    padding: 30px 20px;
  }
  
  .wcs-big-number {
    font-size: 24px;
  }
  
  .wcs-comp-value {
    font-size: 24px;
  }
}

@media (max-width: 480px) {
  .wcs-main-heading {
    font-size: 20px;
  }
  
  .wcs-section-title {
    font-size: 18px;
  }
  
  .wcs-content-box {
    padding: 20px;
  }
  
  .wcs-infographic-section {
    padding: 25px;
  }
  
  .wcs-composition-section {
    padding: 25px;
  }
  
  .wcs-accordion-header {
    padding: 20px;
  }
  
  .wcs-accordion-item.expanded .wcs-accordion-content {
    padding: 20px;
  }
  
  .wcs-big-text {
    font-size: 20px;
  }
}
</style>

<style>
/* 環境要因がCO₂固定に与える影響セクション */
.env-co2-impact-unique2025 {
  background: #ffffff;
  padding: 70px 0;
  font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
  color: #2c3e50;
  position: relative;
  overflow: hidden;
}

.env-co2-impact-unique2025::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #00695c, #00897b, #26a69a, #00897b, #00695c);
}

.eci-wrapper-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ウェーブヘッダー */
.eci-wave-header {
  text-align: center;
  margin-bottom: 60px;
  padding: 45px 30px;
  background: linear-gradient(135deg, #e0f2f1 0%, #b2dfdb 100%);
  border-radius: 25px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.08);
  position: relative;
  animation: fadeIn-Up 0.8s ease-out;
}

.eci-wave-header::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 40px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 40'%3E%3Cpath d='M0,20 Q300,0 600,20 T1200,20 L1200,40 L0,40 Z' fill='%23ffffff'/%3E%3C/svg%3E");
  background-size: cover;
}

.eci-main-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  color: #004d40;
  margin-bottom: 18px;
  letter-spacing: 0.5px;
}

.eci-title-primary {
  color: #00695c;
  background: linear-gradient(180deg, transparent 65%, rgba(0, 150, 136, 0.2) 65%);
  padding: 0 6px;
}

.eci-title-accent {
  color: #ff5722;
  font-weight: 800;
}

.eci-subtitle-text {
  font-size: 16px;
  color: #546e7a;
  letter-spacing: 0.8px;
  font-weight: 400;
}

/* 導入フルワイド */
.eci-intro-fullwidth {
  margin-bottom: 50px;
  background: white;
  padding: 35px;
  border-radius: 20px;
  box-shadow: 0 5px 25px rgba(0,0,0,0.06);
  border-left: 5px solid #00897b;
}

.eci-lead-paragraph {
  font-size: 17px;
  line-height: 1.9;
  color: #37474f;
  margin: 0;
}

.eci-strong-primary {
  color: #00695c;
  font-weight: 700;
  font-size: 1.08em;
}

.eci-highlight-green {
  background: rgba(0, 150, 136, 0.12);
  padding: 3px 8px;
  border-radius: 4px;
  color: #00695c;
  font-weight: 600;
}

.eci-underline-text {
  text-decoration: underline;
  text-decoration-color: #00897b;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
  font-weight: 600;
}

/* ファクターセクション共通 */
.eci-factor-section {
  margin-bottom: 65px;
  background: white;
  border-radius: 25px;
  padding: 40px;
  box-shadow: 0 8px 35px rgba(0,0,0,0.07);
  position: relative;
  overflow: hidden;
}

.eci-factor-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 35px;
  padding-bottom: 20px;
  border-bottom: 2px solid #e0f2f1;
  position: relative;
}

.eci-icon-box {
  width: 60px;
  height: 60px;
  border-radius: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  flex-shrink: 0;
}

.sun-icon {
  background: linear-gradient(135deg, #fff9c4, #ffeb3b);
}

.temp-icon {
  background: linear-gradient(135deg, #ffccbc, #ff8a65);
}

.water-icon {
  background: linear-gradient(135deg, #b3e5fc, #4fc3f7);
}

.soil-icon {
  background: linear-gradient(135deg, #dcedc8, #8bc34a);
}

.co2-icon {
  background: linear-gradient(135deg, #c5e1a5, #7cb342);
}

.eci-factor-title {
  font-size: 26px;
  font-weight: 700;
  color: #004d40;
  margin: 0;
}

.eci-factor-badge {
  margin-left: auto;
  background: #00695c;
  color: white;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

/* タイムラインスタイル（光条件） */
.eci-timeline-content {
  position: relative;
  padding-left: 40px;
}

.eci-timeline-content::before {
  content: '';
  position: absolute;
  left: 10px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, #ffeb3b, #ffc107);
}

.eci-timeline-item {
  position: relative;
  margin-bottom: 35px;
  animation: fadeIn-Left 0.8s ease-out;
}

.eci-timeline-marker {
  position: absolute;
  left: -35px;
  top: 10px;
  width: 18px;
  height: 18px;
  background: #ffc107;
  border: 3px solid white;
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(255, 193, 7, 0.4);
}

.eci-timeline-text p {
  margin: 0;
  line-height: 1.85;
  color: #455a64;
  font-size: 16px;
}

.eci-color-bold {
  color: #ff6f00;
  font-weight: 700;
}

.eci-emphasis-orange {
  color: #ff5722;
  font-weight: 600;
  background: rgba(255, 87, 34, 0.1);
  padding: 2px 6px;
  border-radius: 4px;
}

.eci-data-highlight {
  color: #f57c00;
  font-weight: 700;
}

.eci-big-number {
  font-size: 22px;
  font-weight: 800;
  color: #ff5722;
  display: inline-block;
  margin: 0 5px;
  background: linear-gradient(135deg, #fff3e0, #ffe0b2);
  padding: 4px 12px;
  border-radius: 8px;
}

.eci-important-text {
  color: #d84315;
  font-weight: 600;
}

.eci-spacing-data {
  background: #e8f5e9;
  padding: 4px 10px;
  border-radius: 6px;
  color: #2e7d32;
  font-weight: 700;
}

.eci-warning-text {
  color: #b71c1c;
  font-weight: 600;
  background: rgba(183, 28, 28, 0.08);
  padding: 2px 6px;
  border-radius: 4px;
}

/* 温度グリッド */
.eci-temp-grid {
  display: grid;
  gap: 30px;
}

.eci-temp-main p {
  margin-bottom: 25px;
  line-height: 1.85;
  color: #455a64;
  font-size: 16px;
}

.eci-gradient-text {
  background: linear-gradient(90deg, #ff5722, #ff8a65);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
  font-size: 1.05em;
}

.eci-optimal-temp {
  background: linear-gradient(135deg, #ffebee, #ffcdd2);
  padding: 5px 12px;
  border-radius: 8px;
  color: #c62828;
  font-weight: 700;
  font-size: 1.1em;
}

.eci-enzyme-name {
  color: #1565c0;
  font-weight: 600;
  font-style: italic;
}

.eci-temp-ranges {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 20px;
  margin: 30px 0;
}

.eci-range-item {
  padding: 20px;
  border-radius: 15px;
  text-align: center;
  transition: transform 0.3s ease;
}

.eci-range-item:hover {
  transform: translateY(-5px);
}

.eci-range-item.cold {
  background: linear-gradient(135deg, #e1f5fe, #b3e5fc);
  border: 2px solid #0288d1;
}

.eci-range-item.freeze {
  background: linear-gradient(135deg, #e8eaf6, #c5cae9);
  border: 2px solid #5c6bc0;
}

.eci-range-item.hot {
  background: linear-gradient(135deg, #fff3e0, #ffe0b2);
  border: 2px solid #ff9800;
}

.eci-range-value {
  font-size: 20px;
  font-weight: 700;
  color: #263238;
  margin-bottom: 10px;
}

.eci-range-effect {
  font-size: 14px;
  color: #546e7a;
  line-height: 1.5;
}

.eci-technical-term {
  color: #7b1fa2;
  font-weight: 600;
  background: rgba(123, 31, 162, 0.08);
  padding: 2px 6px;
  border-radius: 4px;
}

.eci-japan-climate {
  color: #00695c;
  font-weight: 700;
  text-decoration: underline;
  text-decoration-style: wavy;
  text-decoration-color: #4db6ac;
}

/* ウォーターフローデザイン */
.eci-water-flow {
  display: flex;
  flex-direction: column;
  gap: 25px;
}

.eci-flow-item {
  background: linear-gradient(135deg, #f5f5f5, #fafafa);
  padding: 30px;
  border-radius: 20px;
  border-left: 4px solid #039be5;
  position: relative;
  transition: all 0.3s ease;
}

.eci-flow-item:hover {
  transform: translateX(10px);
  box-shadow: 0 5px 20px rgba(3, 155, 229, 0.15);
}

.eci-flow-item.warning {
  background: linear-gradient(135deg, #fff9c4, #fff59d);
  border-left-color: #f57c00;
}

.eci-flow-header {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 20px;
}

.eci-flow-number {
  width: 35px;
  height: 35px;
  background: #039be5;
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
}

.eci-flow-item.warning .eci-flow-number {
  background: #f57c00;
  font-size: 20px;
}

.eci-flow-header h5 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  color: #01579b;
}

.eci-flow-item p {
  margin: 0;
  line-height: 1.85;
  color: #455a64;
  font-size: 16px;
}

.eci-water-emphasis {
  color: #0277bd;
  font-weight: 700;
}

.eci-function-text {
  color: #00838f;
  font-weight: 600;
}

.eci-highlight-blue {
  background: rgba(3, 169, 244, 0.12);
  padding: 3px 8px;
  border-radius: 4px;
  color: #01579b;
  font-weight: 600;
}

.eci-critical-point {
  color: #e65100;
  font-weight: 700;
  font-size: 1.05em;
}

.eci-sensitive-period {
  background: rgba(255, 111, 0, 0.1);
  padding: 3px 8px;
  border-radius: 4px;
  color: #e65100;
  font-weight: 600;
}

.eci-danger-text {
  color: #c62828;
  font-weight: 700;
}

.eci-weakness {
  color: #ad1457;
  font-weight: 600;
}

.eci-serious-effect {
  text-decoration: underline;
  text-decoration-color: #c62828;
  text-decoration-thickness: 2px;
  font-weight: 600;
}

.eci-solution-text {
  color: #2e7d32;
  font-weight: 700;
  background: rgba(46, 125, 50, 0.08);
  padding: 3px 8px;
  border-radius: 4px;
}

/* ピラミッドレイアウト */
.eci-pyramid-layout {
  display: flex;
  flex-direction: column;
  gap: 25px;
}

.eci-pyramid-top {
  background: linear-gradient(135deg, #c8e6c9, #a5d6a7);
  padding: 30px;
  border-radius: 20px 20px 10px 10px;
  text-align: center;
}

.eci-nutrient-title {
  font-size: 20px;
  font-weight: 700;
  color: #1b5e20;
  margin-bottom: 20px;
}

.eci-pyramid-top p {
  margin: 0;
  line-height: 1.85;
  color: #263238;
  font-size: 16px;
}

.eci-nutrient-emphasis {
  color: #1b5e20;
  font-weight: 700;
  font-size: 1.1em;
}

.eci-nitrogen-highlight {
  background: #fff9c4;
  padding: 3px 8px;
  border-radius: 4px;
  color: #f57c00;
  font-weight: 700;
}

.eci-protein-name {
  color: #4527a0;
  font-weight: 600;
  font-style: italic;
}

.eci-correlation-text {
  text-decoration: underline;
  text-decoration-color: #689f38;
  text-decoration-thickness: 2px;
  font-weight: 600;
}

.eci-pyramid-middle {
  padding: 0 20px;
}

.eci-nutrient-box {
  background: white;
  padding: 30px;
  border-radius: 15px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.08);
  border-left: 4px solid #689f38;
}

.eci-nutrient-box h5 {
  font-size: 18px;
  font-weight: 700;
  color: #33691e;
  margin: 0 0 20px 0;
}

.eci-nutrient-box p {
  margin: 0;
  line-height: 1.85;
  color: #455a64;
  font-size: 16px;
}

.eci-soil-quality {
  color: #558b2f;
  font-weight: 700;
}

.eci-caution-text {
  color: #ff6f00;
  font-weight: 600;
  background: rgba(255, 111, 0, 0.08);
  padding: 2px 6px;
  border-radius: 4px;
}

.eci-short-term {
  color: #0288d1;
  font-weight: 600;
}

.eci-long-term {
  color: #7b1fa2;
  font-weight: 600;
}

.eci-pyramid-bottom {
  padding: 0 40px;
}

.eci-fertilizer-info {
  background: linear-gradient(135deg, #fff8e1, #ffecb3);
  padding: 30px;
  border-radius: 15px;
  border: 2px solid #ffa000;
}

.eci-fertilizer-info h5 {
  font-size: 18px;
  font-weight: 700;
  color: #e65100;
  margin: 0 0 20px 0;
}

.eci-fertilizer-info p {
  margin: 0;
  line-height: 1.85;
  color: #455a64;
  font-size: 16px;
}

.eci-fertilizer-timing {
  color: #f57c00;
  font-weight: 700;
}

.eci-fertilizer-period {
  color: #ef6c00;
  font-weight: 700;
}

.eci-phosphorus-effect {
  background: rgba(156, 39, 176, 0.08);
  padding: 3px 8px;
  border-radius: 4px;
  color: #6a1b9a;
  font-weight: 600;
}

.eci-important-fertilizer {
  text-decoration: underline;
  text-decoration-color: #f57c00;
  text-decoration-thickness: 2px;
  font-weight: 600;
}

/* 画像プレースホルダー */
.eci-image-container {
  margin: 50px 0;
  width: 100%;
}

.eci-image-container.secondary {
  margin-top: 40px;
}

.eci-image-placeholder {
  background: linear-gradient(135deg, #eceff1, #cfd8dc);
  border: 3px dashed #90a4ae;
  border-radius: 20px;
  padding: 70px 30px;
  min-height: 350px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.eci-placeholder-inner {
  text-align: center;
}

.eci-placeholder-icon {
  font-size: 56px;
  display: block;
  margin-bottom: 20px;
  opacity: 0.7;
}

.eci-placeholder-desc {
  font-size: 15px;
  color: #607d8b;
  font-style: italic;
  margin: 0;
  line-height: 1.6;
}

/* CO₂濃度セクション */
.eci-co2-content {
  display: grid;
  gap: 30px;
}

.eci-co2-main p {
  margin-bottom: 25px;
  line-height: 1.85;
  color: #455a64;
  font-size: 16px;
}

.eci-co2-primary {
  color: #2e7d32;
  font-weight: 700;
  font-size: 1.08em;
}

.eci-effect-name {
  background: linear-gradient(135deg, #e8f5e9, #c8e6c9);
  padding: 4px 10px;
  border-radius: 8px;
  color: #1b5e20;
  font-weight: 700;
}

.eci-current-ppm {
  color: #1976d2;
  font-weight: 600;
}

.eci-future-ppm {
  color: #d32f2f;
  font-weight: 600;
}

.eci-increase-rate {
  font-size: 20px;
  font-weight: 800;
  color: #2e7d32;
  background: linear-gradient(135deg, #e8f5e9, #c8e6c9);
  padding: 5px 15px;
  border-radius: 10px;
  display: inline-block;
}

.eci-co2-comparison {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  padding: 30px;
  background: linear-gradient(135deg, #f5f5f5, #e0e0e0);
  border-radius: 20px;
  margin: 30px 0;
}

.eci-ppm-item {
  text-align: center;
  padding: 20px;
  background: white;
  border-radius: 15px;
  box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}

.eci-ppm-item.current {
  border: 2px solid #1976d2;
}

.eci-ppm-item.future {
  border: 2px solid #d32f2f;
}

.eci-ppm-label {
  display: block;
  font-size: 14px;
  color: #607d8b;
  margin-bottom: 8px;
}

.eci-ppm-value {
  display: block;
  font-size: 24px;
  font-weight: 800;
  color: #263238;
}

.eci-arrow {
  font-size: 28px;
  color: #757575;
  font-weight: 700;
}

.eci-result {
  text-align: center;
  padding: 20px;
  background: linear-gradient(135deg, #c8e6c9, #a5d6a7);
  border-radius: 15px;
  border: 2px solid #2e7d32;
}

.eci-result-text {
  display: block;
  font-size: 14px;
  color: #1b5e20;
  margin-bottom: 8px;
}

.eci-result-value {
  display: block;
  font-size: 26px;
  font-weight: 800;
  color: #1b5e20;
}

.eci-species-response {
  color: #2e7d32;
  font-weight: 700;
  line-height: 1.9;
}

.eci-physiology {
  color: #4527a0;
  font-weight: 600;
  background: rgba(69, 39, 160, 0.08);
  padding: 2px 6px;
  border-radius: 4px;
}

.eci-limitation-box {
  background: linear-gradient(135deg, #fff3e0, #ffe0b2);
  padding: 30px;
  border-radius: 20px;
  border-left: 4px solid #ff6f00;
  margin-top: 30px;
}

.eci-limit-title {
  font-size: 18px;
  font-weight: 700;
  color: #e65100;
  margin: 0 0 20px 0;
}

.eci-limitation-box p {
  margin: 0;
  line-height: 1.85;
  color: #455a64;
  font-size: 16px;
}

.eci-limitation-text {
  color: #d84315;
  font-weight: 600;
}

.eci-constraint {
  color: #bf360c;
  font-weight: 700;
}

.eci-climate-change {
  background: rgba(33, 150, 243, 0.08);
  padding: 3px 8px;
  border-radius: 4px;
  color: #0277bd;
  font-weight: 600;
}

.eci-consideration {
  color: #1b5e20;
  font-weight: 700;
  text-decoration: underline;
  text-decoration-color: #4caf50;
  text-decoration-thickness: 2px;
}

/* アニメーション */
@keyframes fadeIn-Up {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn-Left {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
  .env-co2-impact-unique2025 {
    padding: 45px 0;
  }
  
  .eci-wrapper-container {
    padding: 0 15px;
  }
  
  .eci-wave-header {
    padding: 30px 20px;
  }
  
  .eci-main-title {
    font-size: 24px;
  }
  
  .eci-factor-section {
    padding: 25px;
  }
  
  .eci-factor-header {
    flex-wrap: wrap;
  }
  
  .eci-factor-badge {
    margin-left: 0;
    margin-top: 10px;
  }
  
  .eci-temp-ranges {
    grid-template-columns: 1fr;
  }
  
  .eci-co2-comparison {
    flex-direction: column;
    gap: 15px;
  }
  
  .eci-arrow {
    transform: rotate(90deg);
  }
  
  .eci-big-number {
    font-size: 18px;
  }
  
  .eci-pyramid-bottom {
    padding: 0 20px;
  }
  
  .eci-timeline-content {
    padding-left: 30px;
  }
}

@media (max-width: 480px) {
  .eci-main-title {
    font-size: 20px;
  }
  
  .eci-subtitle-text {
    font-size: 14px;
  }
  
  .eci-factor-title {
    font-size: 20px;
  }
  
  .eci-intro-fullwidth {
    padding: 25px;
  }
  
  .eci-factor-section {
    padding: 20px;
    margin-bottom: 40px;
  }
  
  .eci-icon-box {
    width: 45px;
    height: 45px;
    font-size: 24px;
  }
  
  .eci-flow-item {
    padding: 20px;
  }
  
  .eci-nutrient-box {
    padding: 20px;
  }
  
  .eci-fertilizer-info {
    padding: 20px;
  }
  
  .eci-limitation-box {
    padding: 20px;
  }
  
  .eci-ppm-value {
    font-size: 20px;
  }
  
  .eci-result-value {
    font-size: 22px;
  }
  
  .eci-increase-rate {
    font-size: 16px;
  }
  
  .eci-image-placeholder {
    padding: 50px 20px;
    min-height: 250px;
  }
  
  .eci-placeholder-icon {
    font-size: 42px;
  }
}
</style>

<style>
/* 木材利用とCO₂固定の長期的視点セクション */
.wood-longterm-co2-section2025 {
  background: #ffffff;
  padding: 65px 0;
  font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
  color: #37474f;
  position: relative;
  overflow: hidden;
}

.wood-longterm-co2-section2025::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #5d4037, #8d6e63, #a1887f, #8d6e63, #5d4037);
}

.wlc-main-wrapper {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ヘキサゴンヘッダー */
.wlc-hexagon-header {
  text-align: center;
  margin-bottom: 55px;
  padding: 50px 30px;
  background: linear-gradient(135deg, #efebe9 0%, #d7ccc8 100%);
  border-radius: 30px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.08);
  position: relative;
  animation: fadeIn-Up 0.7s ease-out;
}

.wlc-hexagon-header::after {
  content: '';
  position: absolute;
  bottom: -15px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 30px;
  height: 30px;
  background: #d7ccc8;
}

.wlc-primary-title {
  font-size: clamp(26px, 3.8vw, 38px);
  font-weight: 700;
  color: #3e2723;
  margin-bottom: 15px;
  letter-spacing: 0.5px;
}

.wlc-title-wood {
  color: #5d4037;
  background: linear-gradient(180deg, transparent 70%, rgba(121, 85, 72, 0.2) 70%);
  padding: 0 5px;
}

.wlc-title-co2 {
  color: #f57c00;
  font-weight: 800;
}

.wlc-title-long {
  color: #1565c0;
  font-weight: 700;
}

.wlc-subtitle-line {
  font-size: 15px;
  color: #6d4c41;
  letter-spacing: 0.8px;
  font-weight: 400;
}

/* スプリット導入 */
.wlc-split-intro {
  display: flex;
  align-items: center;
  gap: 30px;
  margin-bottom: 55px;
  background: white;
  padding: 35px;
  border-radius: 20px;
  box-shadow: 0 6px 25px rgba(0,0,0,0.06);
  border-left: 5px solid #795548;
}

.wlc-intro-left {
  flex-shrink: 0;
}

.wlc-intro-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, #a5d6a7, #81c784);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
  animation: fadeIn-Right 0.8s ease-out;
}

.wlc-intro-text {
  font-size: 16px;
  line-height: 1.9;
  color: #455a64;
  margin: 0;
}

.wlc-strong-emphasis {
  color: #3e2723;
  font-weight: 700;
  font-size: 1.05em;
}

.wlc-highlight-primary {
  background: rgba(139, 195, 74, 0.15);
  padding: 3px 8px;
  border-radius: 4px;
  color: #558b2f;
  font-weight: 600;
}

.wlc-highlight-secondary {
  background: rgba(255, 152, 0, 0.15);
  padding: 3px 8px;
  border-radius: 4px;
  color: #ef6c00;
  font-weight: 600;
}

.wlc-underline-important {
  text-decoration: underline;
  text-decoration-color: #795548;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
  font-weight: 600;
}

/* カスケードセクション */
.wlc-cascade-section {
  margin-bottom: 60px;
}

.wlc-section-heading {
  font-size: 24px;
  font-weight: 700;
  color: #3e2723;
  text-align: center;
  margin-bottom: 35px;
  padding-bottom: 15px;
  position: relative;
}

.wlc-section-heading::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 3px;
  background: linear-gradient(90deg, #795548, #a1887f);
  border-radius: 2px;
}

.wlc-cascade-cards {
  display: grid;
  gap: 25px;
}

.wlc-cascade-item {
  display: flex;
  align-items: flex-start;
  gap: 25px;
  background: white;
  padding: 30px;
  border-radius: 18px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
  transition: all 0.3s ease;
  animation: fadeIn-Left 0.8s ease-out;
  animation-delay: var(--delay);
  animation-fill-mode: both;
  border-left: 4px solid #a1887f;
}

.wlc-cascade-item:hover {
  transform: translateX(8px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.1);
}

.wlc-cascade-item.highlight {
  background: linear-gradient(135deg, #fff8e1, #ffecb3);
  border-left-color: #ff8f00;
}

.wlc-cascade-number {
  flex-shrink: 0;
  width: 45px;
  height: 45px;
  background: linear-gradient(135deg, #795548, #8d6e63);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 18px;
}

.wlc-cascade-item.highlight .wlc-cascade-number {
  background: linear-gradient(135deg, #ff8f00, #ffa726);
}

.wlc-cascade-content h5 {
  font-size: 18px;
  font-weight: 700;
  color: #4e342e;
  margin: 0 0 12px 0;
}

.wlc-cascade-content p {
  margin: 0;
  line-height: 1.8;
  color: #5d4c47;
  font-size: 15px;
}

.wlc-quality-text {
  color: #558b2f;
  font-weight: 700;
}

.wlc-product-name {
  color: #795548;
  font-weight: 600;
  background: rgba(121, 85, 72, 0.08);
  padding: 2px 6px;
  border-radius: 4px;
}

.wlc-instrument {
  color: #6a1b9a;
  font-weight: 600;
  font-style: italic;
}

.wlc-duration-emphasis {
  color: #e65100;
  font-weight: 700;
  font-size: 1.05em;
}

.wlc-carbon-fixed {
  background: linear-gradient(135deg, rgba(129, 199, 132, 0.2), rgba(174, 213, 129, 0.2));
  padding: 3px 8px;
  border-radius: 4px;
  color: #2e7d32;
  font-weight: 600;
}

/* ステップセクション */
.wlc-steps-section {
  margin-bottom: 60px;
  padding: 45px;
  background: linear-gradient(135deg, #f5f5f5, #e0e0e0);
  border-radius: 25px;
}

.wlc-steps-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  position: relative;
}

.wlc-step-item {
  background: white;
  padding: 25px;
  border-radius: 15px;
  box-shadow: 0 3px 15px rgba(0,0,0,0.08);
  position: relative;
  transition: all 0.3s ease;
}

.wlc-step-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}

.wlc-step-item.primary-fix {
  border-top: 4px solid #4caf50;
}

.wlc-step-item.secondary-fix {
  border-top: 4px solid #2196f3;
}

.wlc-step-item.substitute-effect {
  border-top: 4px solid #ff9800;
}

.wlc-step-item.energy-substitute {
  border-top: 4px solid #9c27b0;
}

.wlc-step-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 15px;
}

.wlc-step-icon {
  font-size: 28px;
}

.wlc-step-title {
  font-size: 17px;
  font-weight: 700;
  color: #3e2723;
  margin: 0;
}

.wlc-step-content p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: #546e7a;
}

.wlc-step-emphasis {
  color: #1a237e;
  font-weight: 600;
}

.wlc-material-list {
  color: #bf360c;
  font-weight: 500;
  font-size: 0.95em;
}

.wlc-step-arrow {
  position: absolute;
  right: -30px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 24px;
  color: #9e9e9e;
  font-weight: 700;
  display: none;
}

@media (min-width: 769px) {
  .wlc-step-item:not(:last-child) .wlc-step-arrow {
    display: block;
  }
}

/* 画像プレースホルダー */
.wlc-image-placeholder-container {
  margin: 50px 0;
  width: 100%;
}

.wlc-image-placeholder-container.secondary {
  margin-top: 40px;
}

.wlc-image-area {
  background: linear-gradient(135deg, #efebe9, #d7ccc8);
  border: 3px dashed #a1887f;
  border-radius: 20px;
  padding: 60px 30px;
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.wlc-placeholder-content {
  text-align: center;
}

.wlc-placeholder-icon {
  font-size: 52px;
  display: block;
  margin-bottom: 18px;
  opacity: 0.7;
}

.wlc-placeholder-text {
  font-size: 14px;
  color: #6d4c41;
  font-style: italic;
  margin: 0;
  line-height: 1.6;
}

/* 比較セクション */
.wlc-comparison-section {
  margin-bottom: 60px;
}

.wlc-comparison-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.wlc-comparison-box {
  background: white;
  padding: 30px;
  border-radius: 20px;
  box-shadow: 0 5px 20px rgba(0,0,0,0.08);
  transition: all 0.3s ease;
}

.wlc-comparison-box:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.12);
}

.wlc-comparison-box.efficiency {
  border-top: 4px solid #4caf50;
}

.wlc-comparison-box.longevity {
  border-top: 4px solid #ff6f00;
}

.wlc-box-header {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 20px;
}

.wlc-box-icon {
  font-size: 32px;
}

.wlc-box-header h5 {
  font-size: 18px;
  font-weight: 700;
  color: #3e2723;
  margin: 0;
}

.wlc-comparison-box p {
  margin: 0;
  line-height: 1.8;
  color: #546e7a;
  font-size: 15px;
}

.wlc-efficiency-text {
  color: #2e7d32;
  font-weight: 700;
}

.wlc-factor-text {
  color: #1565c0;
  font-weight: 600;
  background: rgba(21, 101, 192, 0.08);
  padding: 2px 6px;
  border-radius: 4px;
}

.wlc-product-example {
  color: #6a1b9a;
  font-weight: 600;
}

.wlc-duration-long {
  color: #d84315;
  font-weight: 700;
  font-size: 1.05em;
}

.wlc-product-short {
  color: #757575;
  font-weight: 500;
}

.wlc-warning-text {
  color: #bf360c;
  font-weight: 600;
  background: rgba(191, 54, 12, 0.08);
  padding: 2px 6px;
  border-radius: 4px;
}

/* カスケード利用フロー */
.wlc-cascade-utilization {
  margin-bottom: 60px;
  padding: 45px;
  background: linear-gradient(135deg, #e8f5e9, #c8e6c9);
  border-radius: 25px;
}

.wlc-flow-intro {
  background: white;
  padding: 25px;
  border-radius: 15px;
  margin-bottom: 35px;
  box-shadow: 0 3px 15px rgba(0,0,0,0.08);
}

.wlc-flow-intro p {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: #37474f;
}

.wlc-cascade-emphasis {
  color: #1b5e20;
  font-weight: 700;
  font-size: 1.05em;
}

.wlc-maximize-text {
  background: rgba(46, 125, 50, 0.15);
  padding: 3px 8px;
  border-radius: 4px;
  color: #2e7d32;
  font-weight: 600;
}

.wlc-flow-stages {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  margin-bottom: 35px;
}

.wlc-stage-item {
  background: white;
  padding: 25px;
  border-radius: 15px;
  width: 100%;
  max-width: 500px;
  box-shadow: 0 4px 18px rgba(0,0,0,0.08);
  transition: all 0.3s ease;
  animation: fadeIn 0.8s ease-out;
}

.wlc-stage-item:hover {
  transform: scale(1.02);
  box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}

.wlc-stage-number {
  display: inline-block;
  background: linear-gradient(135deg, #2e7d32, #43a047);
  color: white;
  padding: 5px 15px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}

.wlc-stage-content h5 {
  font-size: 17px;
  font-weight: 700;
  color: #1b5e20;
  margin: 0 0 10px 0;
}

.wlc-stage-content p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: #546e7a;
}

.wlc-value-text {
  color: #1565c0;
  font-weight: 700;
}

.wlc-recycle-text {
  color: #f57c00;
  font-weight: 700;
}

.wlc-energy-text {
  color: #7b1fa2;
  font-weight: 700;
}

.wlc-flow-arrow {
  font-size: 28px;
  color: #4caf50;
  font-weight: 700;
  animation: pulse 2s infinite;
}

.wlc-cascade-benefit {
  background: white;
  padding: 25px;
  border-radius: 15px;
  border-left: 4px solid #2e7d32;
  box-shadow: 0 3px 15px rgba(0,0,0,0.08);
}

.wlc-cascade-benefit p {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: #37474f;
}

.wlc-cascade-highlight {
  color: #1b5e20;
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: #4caf50;
  text-decoration-thickness: 2px;
}

.wlc-benefit-emphasis {
  color: #d84315;
  font-weight: 700;
  font-size: 1.05em;
}

/* 代替効果セクション */
.wlc-substitute-section {
  margin-bottom: 60px;
  background: white;
  padding: 40px;
  border-radius: 25px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.08);
}

.wlc-substitute-main {
  margin-bottom: 30px;
}

.wlc-substitute-main p {
  font-size: 16px;
  line-height: 1.9;
  color: #455a64;
  margin: 0;
}

.wlc-substitute-emphasis {
  color: #d84315;
  font-weight: 700;
  font-size: 1.05em;
}

.wlc-energy-comparison {
  background: rgba(33, 150, 243, 0.08);
  padding: 3px 8px;
  border-radius: 4px;
  color: #1565c0;
  font-weight: 600;
}

.wlc-reduction-effect {
  color: #2e7d32;
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: #66bb6a;
  text-decoration-thickness: 2px;
}

.wlc-data-panel {
  background: linear-gradient(135deg, #e3f2fd, #bbdefb);
  border-radius: 20px;
  overflow: hidden;
}

.wlc-panel-header {
  background: linear-gradient(135deg, #1565c0, #1976d2);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 15px;
}

.wlc-panel-icon {
  font-size: 28px;
}

.wlc-panel-header h5 {
  font-size: 18px;
  font-weight: 700;
  color: white;
  margin: 0;
}

.wlc-panel-body {
  padding: 25px;
}

.wlc-panel-body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: #37474f;
}

.wlc-data-amount {
  color: #e65100;
  font-weight: 700;
  font-size: 1.1em;
}

.wlc-material-replace {
  color: #6a1b9a;
  font-weight: 600;
}

.wlc-reduction-value {
  background: linear-gradient(135deg, #c8e6c9, #a5d6a7);
  padding: 5px 12px;
  border-radius: 8px;
  color: #1b5e20;
  font-weight: 700;
  font-size: 1.1em;
  display: inline-block;
}

/* アニメーション */
@keyframes fadeIn-Up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn-Right {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeIn-Left {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
  .wood-longterm-co2-section2025 {
    padding: 45px 0;
  }
  
  .wlc-main-wrapper {
    padding: 0 15px;
  }
  
  .wlc-split-intro {
    flex-direction: column;
    padding: 25px;
  }
  
  .wlc-intro-icon {
    width: 60px;
    height: 60px;
    font-size: 30px;
  }
  
  .wlc-primary-title {
    font-size: 22px;
  }
  
  .wlc-steps-container {
    grid-template-columns: 1fr;
  }
  
  .wlc-step-arrow {
    display: none;
  }
  
  .wlc-comparison-content {
    grid-template-columns: 1fr;
  }
  
  .wlc-cascade-cards {
    gap: 20px;
  }
  
  .wlc-cascade-item {
    flex-direction: column;
    padding: 25px;
  }
  
  .wlc-flow-stages {
    gap: 15px;
  }
  
  .wlc-steps-section,
  .wlc-cascade-utilization,
  .wlc-substitute-section {
    padding: 30px 20px;
  }
}

@media (max-width: 480px) {
  .wlc-primary-title {
    font-size: 20px;
  }
  
  .wlc-section-heading {
    font-size: 18px;
  }
  
  .wlc-hexagon-header {
    padding: 35px 20px;
  }
  
  .wlc-cascade-item {
    padding: 20px;
  }
  
  .wlc-cascade-number {
    width: 35px;
    height: 35px;
    font-size: 16px;
  }
  
  .wlc-stage-item {
    padding: 20px;
  }
  
  .wlc-comparison-box {
    padding: 20px;
  }
  
  .wlc-flow-intro,
  .wlc-cascade-benefit {
    padding: 20px;
  }
  
  .wlc-panel-header {
    padding: 15px;
  }
  
  .wlc-panel-body {
    padding: 20px;
  }
  
  .wlc-substitute-section {
    padding: 25px;
  }
  
  .wlc-image-area {
    padding: 45px 20px;
    min-height: 250px;
  }
  
  .wlc-placeholder-icon {
    font-size: 40px;
  }
  
  .wlc-data-amount,
  .wlc-reduction-value {
    font-size: 1em;
  }
}
</style>


































@keyframes scrollText {
    from {
        transform: translateX(0);
    }
    to {
        transform: translateX(-100%);
    }
}
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 初期状態：マーカークラスでは透明にしておく */

.fadeIn-Slide,
.scale-up,
.fad-eIn,
.fadeIn-Right,
.fadeIn-Left,
.fadeIn-Up {
  opacity: 0;
}

/* アニメーション用クラスを付与されたらアニメーションが発動 */
.fadeIn {
  animation: fadeIn 1s ease forwards;
}
.fadeInRight {
  animation: fadeInRight 1s ease forwards;
}
.fadeInLeft {
  animation: fadeInLeft 1s ease forwards;
}
.fadeInUp {
  animation: fadeInUp 1s ease forwards;
}
.scale-up-top {
  animation: scale-up-top 1s ease forwards;
}
.info-box {
  animation: info-box 1s ease forwards;
}
.fadeInSlide {
    animation: fadeInSlide 0.8s ease-out;
}

/* @keyframesの定義 */


@keyframes fadeInSlide {
  from {
        opacity: 0;
        transform: translateY(70px);
    }
  to {
        opacity: 1;
        transform: translateY(0);
    }
}
@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}
@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@-webkit-keyframes scale-up-top {
  0% {
    -webkit-transform: scale(0.5);
            transform: scale(0.5);
    -webkit-transform-origin: 50% 0%;
            transform-origin: 50% 0%;
  }
  100% {
    -webkit-transform: scale(1);
            transform: scale(1);
    -webkit-transform-origin: 50% 0%;
            transform-origin: 50% 0%;
  }
}
@keyframes scale-up-top {
  0% {
    -webkit-transform: scale(0.5);
            transform: scale(0.5);
    -webkit-transform-origin: 50% 0%;
            transform-origin: 50% 0%;
  }
  100% {
    -webkit-transform: scale(1);
            transform: scale(1);
    -webkit-transform-origin: 50% 0%;
            transform-origin: 50% 0%;
  }
}
.scale-up-top {
	-webkit-animation: scale-up-top 0.4s cubic-bezier(0.390, 0.575, 0.565, 1.000) both;
	        animation: scale-up-top 0.4s cubic-bezier(0.390, 0.575, 0.565, 1.000) both;
}