/* ===== ベース ===== */
:root {
  --dark-gray: #1E1E1E;
  --metallic-blue: #0077CC;
  --metallic-blue-dark: #005fa3;
  --white: #FFFFFF;
  --light-gray: #F0F0F0;
  --overlay-black: rgba(0, 0, 0, 0.4);
  --transition-fast: 0.3s;
  --transition-medium: 0.5s;
  --transition-slow: 0.8s;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--dark-gray);
  background-color: var(--white);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}

img {
  max-width: 100%;
  height: auto;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

section {
  padding: 100px 0;
  position: relative;
}

.section-title {
  font-size: 36px;
  margin-bottom: 30px;
  position: relative;
  font-family: 'Roboto Condensed', sans-serif;
  letter-spacing: 2px;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background-color: var(--metallic-blue);
  margin-top: 15px;
}

.section-title.centered {
  text-align: center;
}

.section-title.centered::after {
  margin: 15px auto 0;
}

.section-title.light {
  color: var(--white);
}

.section-title.light::after {
  background-color: var(--white);
}

.section-description {
  font-size: 18px;
  line-height: 1.8;
  margin-bottom: 40px;
}

.feature-icon-img {
  width: 60px;
  height: 60px;
  object-fit: contain;
}

/* ===== ローディングアニメーション ===== */
.loading {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--dark-gray);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  transition: opacity var(--transition-medium);
}

.loading-logo {
  font-size: 48px;
  font-weight: 700;
  color: var(--white);
  font-family: 'Roboto Condensed', sans-serif;
  letter-spacing: 5px;
  margin-bottom: 30px;
}

.loading-progress {
  width: 200px;
  height: 3px;
  background-color: rgba(255, 255, 255, 0.2);
  position: relative;
  overflow: hidden;
}

.loading-progress span {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 0;
  background-color: var(--metallic-blue);
  transition: width var(--transition-slow);
}

.loaded .loading {
  opacity: 0;
  pointer-events: none;
}

/* ===== スクロールインジケーター ===== */
.scroll-indicator {
  position: fixed;
  right: 40px;
  bottom: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 100;
  opacity: 1;
  transition: opacity var(--transition-medium);
}

.scroll-indicator-text {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 10px;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  color: var(--dark-gray);
}

.scroll-indicator-line {
  width: 1px;
  height: 60px;
  background-color: var(--dark-gray);
  position: relative;
}

.scroll-indicator-line::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 20px;
  background-color: var(--metallic-blue);
  animation: scrollDown 2s infinite;
}

@keyframes scrollDown {
  0% {
      transform: translateY(0);
      opacity: 1;
  }
  100% {
      transform: translateY(60px);
      opacity: 0;
  }
}

/* ===== ヒーローヘッダー ===== */
.hero {
  height: 100vh;
  position: relative;
  overflow: hidden;
}

.hero-slider {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.hero-slider .swiper-slide {
  background-size: cover;
  background-position: center;
  width: 100%;
  height: 100%;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.6);
  z-index: 1;
}

.hero-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  z-index: 2;
  width: 100%;
  max-width: 800px;
  padding: 0 20px;
  transition: transform 1.2s ease-in-out, left 1.2s ease-in-out;
}

.hero-content.moved-left {
  left: 25%;
  text-align: left;
}

.hero-title {
  font-size: 84px;
  color: var(--white);
  font-family: 'Roboto Condensed', sans-serif;
  letter-spacing: 10px;
  margin-bottom: 20px;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 1s forwards 0.5s;
}

.hero-subtitle {
  font-size: 24px;
  color: var(--white);
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 1s forwards 1s;
}

@keyframes fadeInUp {
  0% {
      opacity: 0;
      transform: translateY(30px);
  }
  100% {
      opacity: 1;
      transform: translateY(0);
  }
}

/* ===== コンセプトセクション ===== */
.concept {
  background-color: var(--white);
}

.concept-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-gap: 60px;
  align-items: center;
}

.concept-image-wrapper {
  position: relative;
  overflow: hidden;
  border-radius: 10px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  transform: scale(0.95);
  transition: transform var(--transition-medium);
}

.concept-image-wrapper:hover {
  transform: scale(1);
}

.concept-image img {
  display: block;
  width: 100%;
  height: auto;
  transition: transform var(--transition-slow);
}

.concept-image:hover img {
  transform: scale(1.05);
}

/* ===== 特徴紹介セクション ===== */
.features {
  background-color: var(--light-gray);
  padding: 120px 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-gap: 40px;
  margin-top: 60px;
}

.feature-card {
  background-color: var(--white);
  border-radius: 10px;
  padding: 40px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
  opacity: 0;
  transform: translateY(30px);
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.feature-icon {
  margin-bottom: 20px;
}

.feature-title {
  font-size: 24px;
  margin-bottom: 15px;
  color: var(--dark-gray);
}

.feature-description {
  color: #666;
  line-height: 1.8;
}

/* ===== 先進技術セクション ===== */
.advanced-tech {
  background-color: var(--dark-gray);
  color: var(--white);
  padding: 120px 0;
}

.advanced-tech-content {
  max-width: 800px;
  margin: 0 auto;
}

.advanced-tech .section-description {
  color: var(--light-gray);
}

.tech-points {
  list-style: none;
  margin-top: 40px;
}

.tech-point {
  position: relative;
  padding-left: 30px;
  margin-bottom: 20px;
  font-size: 20px;
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity var(--transition-medium), transform var(--transition-medium);
}

.tech-point::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 10px;
  height: 10px;
  background-color: var(--metallic-blue);
  border-radius: 50%;
}

/* ===== 製品詳細セクション ===== */
.specifications {
  padding: 0;
  height: 100vh;
  min-height: 800px;
  display: flex;
  align-items: center;
  position: relative;
  color: var(--white);
}

.specifications-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

.specifications-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--overlay-black);
}

.specifications-content {
  position: relative;
  z-index: 1;
  width: 100%;
}

.specs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-gap: 30px;
  margin-top: 60px;
}

.spec-item {
  background-color: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(5px);
  padding: 20px;
  border-radius: 10px;
  transition: transform var(--transition-medium);
}

.spec-item:hover {
  transform: translateY(-5px);
  background-color: rgba(255, 255, 255, 0.15);
}

.spec-label {
  font-size: 14px;
  opacity: 0.7;
  margin-bottom: 5px;
}

.spec-value {
  font-size: 20px;
  font-weight: 700;
}

.counter {
  display: inline-block;
  min-width: 30px;
}

/* ===== 機能紹介セクション ===== */
.functions {
  padding: 120px 0;
  background-color: var(--white);
}

.functions-wrapper {
  margin-top: 60px;
}

.function-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-gap: 60px;
  align-items: center;
  margin-bottom: 100px;
  opacity: 0;
  transform: translateY(30px);
}

.function-item:last-child {
  margin-bottom: 0;
}

.function-item.reverse {
  grid-template-columns: 1fr 1fr;
}

.function-image {
  overflow: hidden;
  border-radius: 10px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.parallax-image {
  display: block;
  width: 100%;
  height: auto;
  transition: transform 1s;
}

.function-image:hover .parallax-image {
  transform: scale(1.05);
}

.function-title {
  font-size: 28px;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 15px;
}

.function-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 3px;
  background-color: var(--metallic-blue);
}

.function-description {
  font-size: 18px;
  line-height: 1.8;
  color: #666;
}

/* ===== 操作性セクション ===== */
.operation {
  background-color: var(--light-gray);
  padding: 120px 0;
}

.operation-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.operation-points {
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  margin-top: 60px;
}

.operation-point {
  text-align: center;
  margin: 0 20px 30px;
  transition: transform var(--transition-medium);
  opacity: 0;
  transform: translateY(30px);
}

.operation-point:hover {
  transform: translateY(-10px);
}

.operation-point-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background-color: var(--metallic-blue);
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 30px;
}

.operation-point-text {
  font-size: 18px;
  font-weight: 700;
}

/* ===== 導入メリットセクション ===== */
.benefits {
  padding: 120px 0;
  background-color: var(--white);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-gap: 40px;
  margin-top: 60px;
}

.benefit-card {
  text-align: center;
  padding: 40px;
  border-radius: 10px;
  background-color: var(--light-gray);
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
  opacity: 0;
  transform: translateY(30px);
}

.benefit-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.benefit-icon {
  width: 80px;
  height: 80px;
  background-color: var(--metallic-blue);
  border-radius: 50%;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 30px;
}

.benefit-title {
  font-size: 24px;
  margin-bottom: 15px;
}

.benefit-description {
  color: #666;
  line-height: 1.8;
}

/* ===== 環境性能セクション ===== */
.environment {
  background-color: var(--dark-gray);
  color: var(--white);
  padding: 120px 0;
}

.environment-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 50%;
  height: 100%;
  background-image: url('../images/a003.JPG');
  background-size: cover;
  background-position: center;
  opacity: 0.2;
}

.environment-content {
  max-width: 800px;
  margin-left: auto;
  position: relative;
  z-index: 1;
}

.environment .section-description {
  color: var(--light-gray);
}

.env-metrics {
  display: flex;
  justify-content: space-between;
  margin-top: 60px;
  flex-wrap: wrap;
}

.env-metric {
  text-align: center;
  width: 30%;
  margin-bottom: 30px;
  opacity: 0;
  transform: translateY(30px);
}

.env-metric-label {
  font-size: 16px;
  opacity: 0.7;
  margin-bottom: 10px;
}

.env-metric-value {
  font-size: 36px;
  font-weight: 700;
  color: var(--metallic-blue);
}

/* ===== 導入事例セクション ===== */
.case-studies {
  padding: 120px 0;
  background-color: var(--white);
}

.case-studies-slider {
  margin-top: 60px;
  overflow: hidden;
}

.case-study-slide {
  position: relative;
}

.case-study-image {
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 20px;
}

.case-study-image img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform var(--transition-slow);
}

.case-study-slide:hover .case-study-image img {
  transform: scale(1.05);
}

.case-study-title {
  font-size: 22px;
  margin-bottom: 10px;
}

.case-study-result {
  color: #666;
  font-size: 16px;
}

.swiper-pagination {
  position: relative;
  margin-top: 30px;
}

.swiper-button-next, .swiper-button-prev {
  color: var(--metallic-blue);
}

/* ===== 比較セクション ===== */
.comparison {
  background-color: var(--light-gray);
  padding: 120px 0;
}

.comparison-table-wrapper {
  margin-top: 60px;
  overflow-x: auto;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  border-spacing: 0;
  font-size: 16px;
}

.comparison-table th, .comparison-table td {
  padding: 15px 20px;
  text-align: center;
  border-bottom: 1px solid #ddd;
}

.comparison-table th {
  background-color: var(--dark-gray);
  color: var(--white);
  font-weight: 700;
}

.comparison-table tr:nth-child(even) {
  background-color: rgba(0, 0, 0, 0.02);
}

.comparison-table tr {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-medium), transform var(--transition-medium);
}

.comparison-table td.highlight {
  color: var(--metallic-blue);
  font-weight: 700;
  position: relative;
}

.comparison-table td.highlight::after {
  content: '★';
  position: absolute;
  top: 5px;
  right: 5px;
  font-size: 12px;
  color: var(--metallic-blue);
}

/* ===== サポート・保証セクション ===== */
.support {
  padding: 120px 0;
  background-color: var(--white);
}

.support-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-gap: 40px;
  margin-top: 60px;
}

.support-card {
  background-color: var(--light-gray);
  border-radius: 10px;
  padding: 40px;
  text-align: center;
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
  opacity: 0;
  transform: translateY(30px);
}

.support-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.support-icon {
  width: 80px;
  height: 80px;
  background-color: var(--metallic-blue);
  border-radius: 50%;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 30px;
  transition: transform var(--transition-medium);
}

.support-card:hover .support-icon {
  transform: rotate(360deg);
}

.support-title {
  font-size: 22px;
  margin-bottom: 15px;
}

.support-description {
  color: #666;
  line-height: 1.8;
}

/* ===== 導入プロセスセクション ===== */
.process {
  background-color: var(--light-gray);
  padding: 120px 0;
}

.process-steps {
  max-width: 800px;
  margin: 60px auto 0;
  position: relative;
}

.process-steps::before {
  content: '';
  position: absolute;
  left: 29px;
  top: 0;
  width: 2px;
  height: 100%;
  background-color: var(--metallic-blue);
}

.process-step {
  display: flex;
  margin-bottom: 50px;
  position: relative;
  opacity: 0;
  transform: translateX(-30px);
}

.process-step:last-child {
  margin-bottom: 0;
}

.process-step-circle {
  width: 60px;
  height: 60px;
  background-color: var(--metallic-blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 24px;
  font-weight: 700;
  margin-right: 30px;
  flex-shrink: 0;
  z-index: 1;
  transition: transform var(--transition-medium), background-color var(--transition-medium);
}

.process-step:hover .process-step-circle {
  transform: scale(1.1);
  background-color: var(--metallic-blue-dark);
}

.process-step-content {
  padding-top: 10px;
}

.process-step-title {
  font-size: 22px;
  margin-bottom: 10px;
}

.process-step-description {
  color: #666;
  line-height: 1.8;
}

/* ===== 問い合わせ・資料セクション ===== */
.contact {
  padding: 120px 0;
  background-color: var(--white);
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 3fr 1fr;
  grid-gap: 60px;
  margin-top: 60px;
}

.contact-form {
  background-color: var(--light-gray);
  padding: 40px;
  border-radius: 10px;
}

.form-group {
  margin-bottom: 25px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 700;
}

.form-group input, .form-group textarea {
  width: 100%;
  padding: 12px 15px;
  border: 1px solid #ddd;
  border-radius: 5px;
  font-size: 16px;
  font-family: inherit;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--metallic-blue);
  box-shadow: 0 0 0 2px rgba(0, 119, 204, 0.2);
}

.submit-btn {
  background-color: var(--metallic-blue);
  color: var(--white);
  font-size: 16px;
  font-weight: 700;
  padding: 12px 30px;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.submit-btn:hover {
  background-color: var(--metallic-blue-dark);
  transform: translateY(-3px);
}

.download-buttons {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.download-btn {
  display: block;
  background-color: var(--metallic-blue);
  color: var(--white);
  text-align: center;
  padding: 15px 20px;
  border-radius: 5px;
  font-weight: 700;
  margin-bottom: 20px;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.download-btn:hover {
  background-color: var(--metallic-blue-dark);
  transform: translateY(-3px);
}

.download-btn.secondary {
  background-color: var(--dark-gray);
}

.download-btn.secondary:hover {
  background-color: #333;
}

/* ===== フッター ===== */
.footer {
  background-color: var(--dark-gray);
  color: var(--white);
  padding: 60px 0;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.footer-logo {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 30px;
  font-family: 'Roboto Condensed', sans-serif;
  letter-spacing: 3px;
}

.footer-links {
  display: flex;
  margin-bottom: 30px;
}

.footer-link {
  margin: 0 15px;
  color: var(--light-gray);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--metallic-blue);
}

.footer-copyright {
  font-size: 14px;
  opacity: 0.7;
}

/* ===== レスポンシブデザイン ===== */
@media (max-width: 1024px) {
  .section-title {
      font-size: 32px;
  }
  
  .hero-title {
      font-size: 64px;
  }
  
  .hero-subtitle {
      font-size: 20px;
  }
  
  /* スマホ・タブレット表示時に左寄せをキャンセルし、中央表示に戻す */
  .hero-content.moved-left {
      left: 50%; 
      text-align: center;
  }
  
  .concept-grid, 
  .features-grid,
  .benefits-grid,
  .support-cards,
  .contact-wrapper {
      grid-template-columns: 1fr;
  }
  
  .function-item,
  .function-item.reverse {
      grid-template-columns: 1fr;
  }
  
  .specifications {
      height: auto;
      padding: 100px 0;
  }
  
  .environment-bg {
      width: 100%;
  }
  
  .environment-content {
      margin: 0 auto;
  }
}

@media (max-width: 768px) {
  section {
      padding: 80px 0;
  }
  
  .section-title {
      font-size: 28px;
  }
  
  .hero-title {
      font-size: 48px;
  }
  
  .hero-subtitle {
      font-size: 18px;
  }
  
  .scroll-indicator {
      display: none;
  }
  
  .specs-grid {
      grid-template-columns: 1fr;
  }
  
  .env-metrics {
      flex-direction: column;
  }
  
  .env-metric {
      width: 100%;
  }
}

@media (max-width: 480px) {
  .section-title {
      font-size: 24px;
  }
  
  .hero-title {
      font-size: 36px;
  }
  
  .hero-subtitle {
      font-size: 16px;
  }
  
  .feature-card,
  .support-card {
      padding: 20px;
  }
}

/* ===== アニメーション関連クラス ===== */
.fade-in {
  opacity: 1;
  transform: translateY(0);
}

.slide-in-left {
  opacity: 1;
  transform: translateX(0);
}

.typing-effect::after {
  content: "|";
  animation: blink 1s infinite;
}

@keyframes blink {
  0%, 100% {
      opacity: 1;
  }
  50% {
      opacity: 0;
  }
}

/* ===== プレースホルダーアイコン用スタイル ===== */
.placeholder-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  background-color: var(--metallic-blue);
  border-radius: 50%;
  width: 60px;
  height: 60px;
  margin: 0 auto 20px;
}