/* ===== グローバルリセットと box-sizing 設定 ===== */
html {
    box-sizing: border-box;
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    text-size-adjust: 100%;
    overflow-x: hidden;
  }
  *, *:before, *:after {
    box-sizing: inherit;
    margin: 0;
    padding: 0;
  }
  
  body {
      font-family: var(--body-font);
      line-height: 1.8;
      color: var(--text-color-on-light);
      background-color: var(--base-color-light);
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      min-width: 320px;
      position: relative;
  }

  /* アルファベットにInterフォントを適用 */
  @supports (font-family: 'Inter') {
      /* 英数字が含まれる全ての要素でInterを優先 */
      * {
          font-family: 'Inter', var(--heading-font), var(--body-font);
      }
      
      /* FAQセクションなど特定の要素でも確実にInterを適用 */
      .faq-summary-item h4,
      .faq-summary-item p,
      .faq-answer p,
      h1, h2, h3, h4, h5, h6, p, span, a, li {
          font-family: 'Inter', 'Noto Sans JP', sans-serif !important;
      }
  }
  
  /* ===== 基本スタイル ===== */
  :root {
      /* 新しいカラーパレット */
      --base-color-dark: #343A40;
      --base-color-light: #FFFFFF;
      --base-color-offwhite: #F4F8FA;
  
      --main-color-blue: #007BFF;
      --main-color-blue-darker: #0056b3;
      --main-color-blue-lighter: #66B2FF;
  
      --accent-color-yellow: #FFC107;
      --accent-color-yellow-darker: #d39e00;
  
      /* テキストカラー */
      --text-color-on-light: #212529;
      --text-color-on-light-muted: #495057;
      --text-color-on-dark: #F8F9FA;
      --text-color-on-dark-muted: #CED4DA;
  
      /* その他 */
      --white: #FFFFFF;
      --black: #000000;
      --border-color-light: #DEE2E6;
      --card-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  
      /* フォント */
      --heading-font: 'Montserrat', 'Noto Sans JP', sans-serif;
      --body-font: 'Noto Sans JP', sans-serif;
  }
  
  
  .container {
      width: 90%;
      max-width: 1100px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 15px;
      padding-right: 15px;
  }
  
  .section-padding {
      padding-top: 5rem;
      padding-bottom: 5rem;
  }
  
  .section-padding-deep {
      padding-top: 7rem;
      padding-bottom: 7rem;
  }
  
  /* 各セクションの基底要素で overflow を制御 */
  .hero-section,
  .what-is-gpu-section,
  .gpu-usecase-section,
  .problem-section,
  .solution-overview-section,
  .gpu-knowledge-group,
  .gpu-business-deep-dive-section,
  .features-summary-section,
  .product-info-section,
  .faq-summary-section,
  .cta-section,
  .footer-section,
  .subpage-main-content .feature-detail-section,
  .subpage-main-content .product-simulation-detail-section,
  .subpage-main-content .comparison-section,
  .subpage-main-content .faq-container,
  .subpage-main-content .company-profile-section,
  .subpage-main-content .representative-section,
  .subpage-main-content .scta-info-section {
      overflow-x: hidden;
      width: 100%;
  }
  
  /* 背景色ユーティリティクラス */
  .section-bg-offwhite {
      background-color: var(--base-color-offwhite);
  }
  .section-bg-dark {
      background-color: var(--base-color-dark);
      color: var(--text-color-on-dark);
  }
  .section-bg-dark .section-title {
      color: var(--white);
  }
  .section-bg-dark .section-title .highlight-alt {
      color: var(--accent-color-yellow);
  }
  .section-bg-dark .notice-small {
      color: var(--text-color-on-dark-muted);
  }
  
  
  .section-title {
      font-family: var(--heading-font);
      font-size: 2.6rem;
      font-weight: 700;
      color: var(--main-color-blue);
      text-align: center;
      margin-bottom: 3.5rem;
      line-height: 1.4;
  }
  
  .section-title .highlight,
  .section-title .highlight-alt,
  .hero-section h1 .highlight {
      color: var(--accent-color-yellow);
  }
  .problem-section .section-title .blue-highlight strong {
      color: var(--main-color-blue);
      font-weight: 700;
      border-bottom: 3px solid var(--main-color-blue-lighter);
      padding-bottom: 0.1em;
      display: inline-block;
      white-space: nowrap;
  }
  
  
  .white-text {
      color: var(--text-color-on-dark) !important;
  }
  .dark-text {
      color: var(--heading-color-on-light-bg) !important;
  }
  .text-center {
      text-align: center;
  }
  .desktop-only {
      display: inline;
  }
  .mobile-only {
      display: none;
  }
  
  
  /* ===== ボタン共通スタイル ===== */
  .btn {
      display: inline-block;
      padding: 0.9rem 2.2rem;
      font-family: var(--heading-font);
      font-weight: 600;
      font-size: 1rem;
      border-radius: 50px;
      text-align: center;
      cursor: pointer;
      transition: all 0.3s cubic-bezier(0.645, 0.045, 0.355, 1);
      border: none;
      text-decoration: none;
      letter-spacing: 0.5px;
      box-shadow: var(--card-shadow);
  }
  
  .btn-primary {
      background-color: var(--main-color-blue);
      color: var(--white);
  }
  
  .btn-primary:hover, .btn-primary:focus {
      background-color: var(--main-color-blue-darker);
      box-shadow: 0 6px 20px rgba(0, 123, 255, 0.3);
      transform: translateY(-3px);
  }
  .btn-primary:active {
      transform: translateY(-1px);
      box-shadow: 0 4px 15px rgba(0, 123, 255, 0.2);
  }
  
  .btn-secondary {
      background-color: transparent;
      color: var(--main-color-blue);
      border: 2px solid var(--main-color-blue);
  }
  .btn-secondary:hover, .btn-secondary:focus {
      background-color: var(--main-color-blue);
      color: var(--white);
      box-shadow: 0 6px 20px rgba(0, 123, 255, 0.2);
  }
  
  
  .btn-accent {
      background-color: var(--accent-color-yellow);
      color: var(--text-color-on-light);
  }
  .btn-accent:hover, .btn-accent:focus {
      background-color: var(--accent-color-yellow-darker);
      box-shadow: 0 6px 20px rgba(255, 193, 7, 0.3);
      transform: translateY(-3px);
  }
  
  .btn-large {
      padding: 1.1rem 2.8rem;
      font-size: 1.05rem;
  }
  .btn.btn-small {
      padding: 0.6rem 1.2rem;
      font-size: 0.85rem;
      border-radius: 30px;
  }
  
  
  /* ===== ヘッダー (index.html用、サブページと共通) ===== */
  .subpage-header.index-header {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      background-color: rgba(0, 0, 0, 0.5); /* 黒い半透明の帯を常時表示 */
      box-shadow: 0 1px 5px rgba(0,0,0,0.2);
      transition: background-color 0.3s ease, box-shadow 0.3s ease;
      z-index: 1000;
  }
  
  .subpage-header.index-header.scrolled {
      background-color: var(--base-color-dark); /* スクロール時はより濃い背景に */
      box-shadow: 0 2px 10px rgba(0,0,0,0.1);
      position: fixed;
  }

  /* ヘッダー内のロゴグループ用スタイル */
  .header-logo-group {
      display: flex;
      align-items: flex-end; /* 下揃え */
      gap: 10px; /* ロゴとテキストの間のスペース */
  }

  .klab-logo {
      height: 40px; /* KLabロゴの高さ */
      width: auto;
      object-fit: contain;
  }

  /* ファーストビューのロゴグループ用スタイル */
  .hero-logo-group {
      display: flex;
      align-items: flex-end; /* 下揃え */
      gap: 8px; /* ロゴとテキストの間のスペース */
      justify-content: center; /* 中央揃え */
  }

  .hero-klab-logo {
      height: 80px; /* KLabロゴの高さ */
      width: auto;
      object-fit: contain;
      filter: drop-shadow(0 4px 8px rgba(0,0,0,0.8)); /* ロゴに強めのドロップシャドウ */
  }

  .hero-x-text {
      font-family: 'Inter', sans-serif;
      font-size: 3rem; /* 「×」のサイズ */
      font-weight: 700;
      color: var(--white);
      line-height: 1;
      transform: translateY(-15px) translateX(-10px); /* 微調整 */
      text-shadow: 0 3px 10px rgba(0,0,0,0.8);
  }

  .hero-gpu-ai-cloud-text {
      font-family: 'Inter', sans-serif;
      font-size: 3rem; /* GPU AI クラウドの文字サイズ */
      font-weight: 700;
      color: var(--white);
      line-height: 1;
      transform: translateY(-12px); /* 微調整 */
      text-shadow: 0 3px 10px rgba(0,0,0,0.8);
  }

  /* 汎用的な青色ハイライトクラス */
.blue-highlight {
    color: var(--main-color-blue);
}

/* 特徴番号のボタンスタイル */
.feature-header-blue .feature-number {
    background-color: var(--white);
    color: var(--main-color-blue);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.9em;
    font-weight: 600;
    display: inline-block;
    margin-right: 0.5rem;
}

/* LINE QRコードスタイル */
.line-qr-container {
    text-align: center;
    margin: 1rem 0;
}

.line-qr-image {
    width: 150px;
    height: 150px;
    object-fit: contain;
    border: 2px solid var(--border-color-light);
    border-radius: 8px;
    padding: 8px;
    background-color: var(--white);
}

/* LINE IDのスタイル */
.contact-social-id {
    font-size: 1.2rem;
    font-weight: 600;
}

.contact-social-id.blue-highlight {
    color: var(--main-color-blue) !important;
}

/* 既存のhero-main-logoは非表示にする */
  .hero-main-logo {
      display: none;
  }

  .gpu-ai-cloud-text {
      font-family: 'Inter', sans-serif; /* Interフォントを適用 */
      font-size: 0.83rem; /* テキストのサイズを2/3に */
      font-weight: 700;
      color: var(--white); /* テキストの色 */
      line-height: 1; /* 行の高さを調整して下揃えを強調 */
      transform: translateY(-8px) translateX(-10px); /* 上側に配置し、左に移動 */
      text-decoration: none !important; /* 下線を削除 */
      transition: opacity 0.3s ease; /* スムーズなトランジション */
  }

  /* 既存のロゴスタイルを削除または調整 */
  .header-logo.combined {
      display: none; /* KLabGPU.png は非表示にする */
  }

  .subpage-logo-link {
      text-decoration: none; /* 下線を削除 */
  }
  .subpage-logo-link:hover .klab-logo,
  .subpage-logo-link:hover .gpu-ai-cloud-text {
      opacity: 0.85;
  }
  
  
  /* ===== ファーストビュー (ヒーローセクション) ===== */
  .hero-section.index-hero-section {
      padding-top: 120px; /* ヘッダーの高さを考慮して調整 */
  }
  .hero-section {
      min-height: 95vh;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      position: relative;
      background-color: #333; /* 動画読み込み前の背景色 */
      color: var(--white);
      overflow: hidden; /* はみ出した動画を隠す */
  }
  
  /* 背景動画用のスタイル */
  .hero-video {
      position: absolute;
      top: 50%;
      left: 50%;
      width: 100%;
      height: 100%;
      min-width: 100%;
      min-height: 100%;
      object-fit: cover; /* アスペクト比を維持したまま全体をカバー */
      transform: translate(-50%, -50%);
      z-index: 0; /* コンテンツより後ろに配置 */
  }

  /* 動画上のオーバーレイ */
  .hero-overlay {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(0, 0, 0, 0.5); /* フィルターの濃さを調整 */
      z-index: 1;
  }
  
  .hero-content {
      position: relative;
      z-index: 2; /* 動画とオーバーレイより手前に配置 */
      padding-top: 1rem;
      padding-bottom: 4rem;
      width: 100%;
  }
  
  .hero-main-logo-container {
      margin-bottom: 2.5rem;
      /* ロゴの背景帯は削除 */
  }

  .hero-main-logo {
      display: block;
      margin-left: auto;
      margin-right: auto;
      height: auto;
      width: 100%;
      max-width: 380px;
      max-height: 95px;
      object-fit: contain;
      filter: drop-shadow(0 4px 8px rgba(0,0,0,0.8)); /* ロゴに強めのドロップシャドウ */
  }
  
  /* テキストの背景帯は削除 */
  .hero-text-container {
    margin-bottom: 2.5rem;
  }

  .hero-section h1 {
      font-size: 3rem;
      font-weight: 700;
      color: var(--white);
      margin-bottom: 1rem;
      line-height: 1.35;
      text-shadow: 0 3px 10px rgba(0,0,0,0.8); /* 強めのドロップシャドウ */
  }
  
  .hero-subtitle {
      font-size: 1.2rem;
      color: var(--text-color-on-dark);
      margin-bottom: 0;
      max-width: 700px;
      margin-left: auto;
      margin-right: auto;
      padding: 0 15px;
      line-height: 1.7;
      text-shadow: 0 2px 8px rgba(0,0,0,0.8); /* 強めのドロップシャドウ */
  }

  .hero-cta {
      margin-top: 2.5rem;
  }

  .hero-authority {
      margin-top: 3rem;
      color: var(--white); /* 明るい白に変更 */
      font-size: 1rem; /* 少し大きく */
      font-weight: 500;
      text-shadow: 0 2px 6px rgba(0,0,0,0.8); /* ドロップシャドウを追加 */
  }
  
  /* ===== 問題提起セクション ===== */
  .problem-section {
      background-color: var(--base-color-light);
      color: var(--text-color-on-light);
  }
  .problem-section .section-title {
      color: var(--heading-color-on-light-bg);
      max-width: 90%;
      margin-left: auto;
      margin-right: auto;
      font-size: 2rem;
      letter-spacing: -0.03em;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
  }
  .problem-section .section-title .blue-highlight strong {
      color: var(--main-color-blue);
      font-weight: 700;
      border-bottom: 3px solid var(--main-color-blue-lighter);
      padding-bottom: 0.1em;
      display: inline-block;
      white-space: nowrap;
  }
  
  .problem-list {
      list-style: none;
      padding: 0;
      margin-top: 2rem;
      max-width: 750px;
      margin-left: auto;
      margin-right: auto;
  }
  
  .problem-list li {
      background-color: var(--base-color-light);
      border-left: 5px solid var(--main-color-blue);
      padding: 1.2rem 1.8rem;
      margin-bottom: 1.2rem;
      border-radius: 8px;
      font-size: 1.1rem;
      display: flex;
      align-items: center;
      color: var(--text-color-on-light);
      box-shadow: var(--card-shadow);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
  }
  
  .problem-list li strong {
      white-space: normal;
      display: inline;
  }
  
  .problem-list li span {
      flex: 1;
      display: inline;
  }
  .problem-list li:hover {
      transform: translateY(-4px);
      box-shadow: 0 8px 20px rgba(0,0,0,0.1);
  }
  
  .problem-icon {
      color: var(--main-color-blue);
      font-size: 1.8rem;
      margin-right: 1.2rem;
      flex-shrink: 0;
  }
  
  .problem-list strong {
      font-weight: 700;
      color: var(--heading-color-on-light-bg);
  }
  
  .problem-solution-link {
      text-align: center;
      margin-top: 3.5rem;
      font-size: 1.15rem;
      color: var(--text-color-on-light-muted);
      line-height: 1.8;
  }
  
  /* ===== ソリューション概要セクション ===== */
  .solution-overview-section {
      background-color: var(--base-color-offwhite);
  }
  .solution-overview-section .section-title.dark-text .highlight {
      color: var(--main-color-blue);
  }
  .solution-overview-section .lead-text.solution-overview-intro {
      color: var(--text-color-on-light);
      font-size: 1.2em;
      margin-bottom: 2.5em !important;
      line-height: 1.7;
      max-width: 850px;
      margin-left: auto;
      margin-right: auto;
  }
  .solution-steps-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 1.8rem;
      margin-top: 2rem;
  }
  .step-card {
      background-color: var(--base-color-light);
      padding: 2rem 1.8rem;
      border-radius: 10px;
      box-shadow: var(--card-shadow);
      display: flex;
      align-items: center;
      gap: 1.5rem;
      border: 1px solid var(--border-color-light);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      min-height: 100px;
  }
  .step-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 22px rgba(0,0,0,0.12);
  }
  .step-card-icon i {
      font-size: 2.8rem;
      color: var(--main-color-blue);
      line-height: 1;
      flex-shrink: 0;
  }
  .step-card-text span {
      font-size: 1.1rem;
      color: var(--text-color-on-light);
      font-weight: 500;
      line-height: 1.6;
  }
  
  
  /* ===== GPU解説セクション群 ===== */
  .gpu-knowledge-group {
      background-color: var(--base-color-light);
  }
  .what-is-gpu-subsection {
      padding-bottom: 4rem;
      border-bottom: 1px solid var(--border-color-light);
  }
  .gpu-usecase-subsection {
      padding-top: 4rem;
  }
  
  .what-is-gpu-subsection .section-title.dark-text .highlight {
      color: var(--main-color-blue);
      border-bottom: 3px solid var(--main-color-blue-lighter);
      padding-bottom: 0.1em;
  }
  .gpu-definition-grid {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 3rem;
  }
  .gpu-image-container {
      flex: 1 1 300px;
      text-align: center;
  }
  .gpu-image-container img {
      width: 300px;
      height: 300px;
      border-radius: 8px;
      box-shadow: var(--card-shadow);
      object-fit: cover;
  }
  .gpu-text-container {
      flex: 1.5 1 400px;
  }
  .gpu-text-container p {
      font-size: 1.05rem;
      line-height: 1.8;
      color: var(--text-color-on-light-muted);
      margin-bottom: 1rem;
  }
  .gpu-text-container p:last-child {
      margin-bottom: 0;
  }
  
  .gpu-usecase-subsection .section-title.dark-text .highlight {
      color: var(--main-color-blue);
      border-bottom: 3px solid var(--main-color-blue-lighter);
      padding-bottom: 0.1em;
  }
  .usecase-lead {
      font-size: 1.1rem;
      color: var(--text-color-on-light-muted);
      margin-bottom: 2.5rem;
      max-width: 700px;
      margin-left: auto;
      margin-right: auto;
  }
  .usecase-image-container img {
      max-width: 100%;
      max-height: 500px;
      height: auto;
      border-radius: 8px;
      box-shadow: var(--card-shadow);
      object-fit: contain;
  }
  .usecase-categories-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 2rem;
  }
  
  .usecase-category-card {
      background-color: var(--base-color-light);
      padding: 2rem 1.5rem;
      border-radius: 10px;
      box-shadow: var(--card-shadow);
      border: 1px solid var(--border-color-light);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
  }
  .usecase-category-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px rgba(0,0,0,0.1);
  }
  .usecase-category-card h4 {
      font-family: var(--heading-font);
      font-size: 1.3rem;
      color: var(--main-color-blue);
      margin-top: 0;
      margin-bottom: 1rem;
      display: flex;
      align-items: center;
  }
  .usecase-category-card h4 i {
      margin-right: 0.6em;
      font-size: 1.2em;
  }
  .usecase-category-card p {
      font-size: 0.95rem;
      color: var(--text-color-on-light-muted);
      line-height: 1.7;
      margin-bottom: 0;
  }
  
  
  .gpu-business-deep-dive-section {
      background-color: var(--base-color-dark);
      color: var(--text-color-on-dark);
  }
  .gpu-business-deep-dive-section .section-title {
      color: var(--white);
  }
  .gpu-business-deep-dive-section .section-title .highlight-alt {
      color: var(--accent-color-yellow);
  }
  .solution-bar-graph-image {
    display: block; /* 中央揃えとマージン調整のため */
    width: 100%;    /* 親要素の幅に合わせて伸縮 */
    max-width: 650px; /* PCでの最大幅を制限 */
    height: auto;   /* アスペクト比を維持 */
    margin: 0 auto 1rem auto; /* 上下左右のマージンと中央揃え */
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    cursor: zoom-in;
    transition: transform 0.3s ease;
}
  .solution-bar-graph-image:hover {
      transform: scale(1.03);
  }
  .gpu-business-deep-dive-section .solution-intro {
      text-align: center;
      font-size: 1.15rem;
      color: var(--text-color-on-dark-muted);
      margin-bottom: 0.5rem;
      max-width: 850px;
      margin-left: auto;
      margin-right: auto;
      line-height: 1.8;
  }
  .gpu-business-deep-dive-section .solution-intro strong.highlight-alt {
      color: var(--accent-color-yellow);
      font-weight: 700;
  }
  .gpu-business-deep-dive-section .solution-intro .disclaimer {
      display: block;
      font-size: 0.8em;
      opacity: 0.85;
      margin-top: 0.75em;
      margin-bottom: 3.5rem;
      line-height: 1.5;
  }
  
  .keypoints-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 2.5rem;
  }
  .keypoint-card {
      background-color: rgba(255, 255, 255, 0.05);
      padding: 2.5rem;
      border-radius: 10px;
      text-align: center;
      box-shadow: 0 8px 25px rgba(0,0,0,0.2);
      border: 1px solid rgba(255, 255, 255, 0.1);
      transition: transform 0.3s ease, background-color 0.3s ease;
      display: flex;
      flex-direction: column;
      justify-content: flex-start;
  }
  .keypoint-card:hover {
      transform: translateY(-8px) scale(1.02);
      background-color: rgba(255, 255, 255, 0.08);
  }
  .keypoint-icon {
      font-size: 3.5rem;
      color: var(--accent-color-yellow);
      margin-bottom: 1.5rem;
      display: inline-block;
      line-height: 1;
  }
  .keypoint-card h3 {
      font-family: var(--heading-font);
      font-size: 1.5rem;
      color: var(--white);
      margin-bottom: 1rem;
      min-height: 3em;
      display: flex;
      align-items: center;
      justify-content: center;
  }
  .keypoint-card p {
      font-size: 0.95rem;
      color: var(--text-color-on-dark);
      line-height: 1.6;
      flex-grow: 1;
  }
  
  
  .features-summary-section {
      background-color: var(--base-color-offwhite);
  }
  .features-summary-section .section-title.dark-text {
      color: var(--main-color-blue);
  }
  .features-summary-section .section-title.dark-text .highlight {
      color: var(--accent-color-yellow);
      border-bottom: none;
  }
  .features-overview-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 1.5rem;
      margin-top: 2rem;
      margin-bottom: 3rem;
  }
  
  .feature-overview-card {
      background-color: var(--base-color-light);
      padding: 1.8rem 1.5rem;
      border-radius: 10px;
      text-align: center;
      box-shadow: var(--card-shadow);
      border: 1px solid var(--border-color-light);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
      align-items: center;
  }
  .feature-overview-card:hover {
      transform: translateY(-6px);
      box-shadow: 0 10px 25px rgba(0,0,0,0.12);
  }
  
  .feature-overview-icon-wrapper {
      width: 70px;
      height: 70px;
      border-radius: 50%;
      background-color: var(--main-color-blue);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 1.2rem;
      transition: background-color 0.3s ease;
  }
  .feature-overview-card:hover .feature-overview-icon-wrapper {
      background-color: var(--main-color-blue-darker);
  }
  .feature-overview-icon {
      font-size: 2.2rem;
      color: var(--white);
  }
  
  .feature-overview-card h4 {
      font-family: var(--heading-font);
      font-size: 1.15rem;
      color: var(--heading-color-on-light-bg);
      margin-bottom: 0.6rem;
      font-weight: 600;
      min-height: 2.4em;
  }
  .feature-overview-card p {
      font-size: 0.9rem;
      color: var(--text-color-on-light-muted);
      line-height: 1.6;
      flex-grow: 1;
      margin-bottom: 1.2rem;
  }
  
  .product-info-section {
      background-color: var(--base-color-light);
  }
  .product-info-section .section-title.dark-text .highlight {
      color: var(--accent-color-yellow);
  }
  .product-info-grid {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 3rem;
      margin-bottom: 3rem;
  }
  .product-info-image {
      flex: 1 1 350px;
      text-align: center;
      padding: 1.5rem;
      background-color: var(--base-color-offwhite);
      border-radius: 8px;
      box-shadow: var(--card-shadow);
  }
  .product-info-image img {
      max-width: 100%;
      max-height: 250px;
      height: auto;
      margin-bottom: 1rem;
      border-radius: 4px;
      object-fit: contain;
  }
  .product-info-text {
      flex: 1.5 1 400px;
  }
  .product-info-text h3 {
      font-family: var(--heading-font);
      font-size: 1.4rem;
      color: var(--heading-color-on-light-bg);
      margin-bottom: 0.3rem;
  }
  .product-info-text .product-price {
      font-size: 1.3rem;
      font-weight: 700;
      color: var(--main-color-blue);
      margin-bottom: 1rem;
  }
  .product-info-text .tax-info {
      font-size: 0.8em;
      font-weight: normal;
      color: var(--text-color-on-light-muted);
  }
  .product-info-text p {
      font-size: 1rem;
      color: var(--text-color-on-light-muted);
      margin-bottom: 1rem;
      line-height: 1.7;
  }
  .product-info-text .notice-small {
      font-size: 0.85rem;
      color: var(--text-color-on-light-muted);
      opacity: 0.9;
      line-height: 1.5;
      margin-top: 1rem;
      padding: 0.8rem;
      background-color: #e9ecef;
      border-left: 3px solid var(--main-color-blue);
      border-radius: 4px;
  }
  
  
  .faq-summary-section {
      background-color: var(--base-color-offwhite);
  }
  .faq-summary-section .section-title.dark-text {
      color: var(--main-color-blue);
  }
  .faq-summary-section .section-title.dark-text .highlight {
      color: var(--accent-color-yellow);
      border-bottom: none;
  }
  .faq-summary-list {
      max-width: 800px;
      margin: 0 auto 3rem auto;
  }
  .faq-summary-item {
      background-color: var(--base-color-light);
      padding: 1.5rem;
      border-radius: 8px;
      margin-bottom: 1.5rem;
      border: 1px solid var(--border-color-light);
      box-shadow: var(--card-shadow);
  }
  .faq-summary-item h4 {
      font-family: var(--heading-font);
      font-size: 1.2rem;
      color: var(--main-color-blue);
      margin-top: 0;
      margin-bottom: 0.8rem;
  }
  .faq-summary-item p {
      font-size: 0.95rem;
      color: var(--text-color-on-light-muted);
      line-height: 1.6;
      margin-bottom: 0;
  }
  
  .cta-section {
      background: var(--base-color-dark);
      color: var(--text-color-on-dark);
  }
  .cta-section .section-title {
      color: var(--white);
      text-align: center; /* 中央揃えを明示的に指定 */
      padding-left: 5px;
  }
  .cta-section .section-title .highlight-alt {
      color: var(--accent-color-yellow);
  }
  
  .cta-subtitle {
      font-size: 1.25rem;
      color: var(--text-color-on-dark-muted);
      margin-bottom: 3rem;
      max-width: 700px;
      margin-left: auto;
      margin-right: auto;
      line-height: 1.8;
  }
  
  .cta-deadline {
      margin-top: 2.5rem;
      font-size: 1.05rem;
      color: var(--text-color-on-dark-muted);
  }
  .cta-deadline strong.highlight-alt {
      color: var(--accent-color-yellow);
      font-weight: 700;
  }
  
  .contact-options {
      margin-top: 2.5rem;
  }
  .contact-options p:first-child {
      margin-bottom: 1rem;
      font-size: 1.05rem;
  }
  .contact-methods-inline {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 1rem 2rem;
      margin-bottom: 0.8rem;
  }
  .contact-methods-inline span {
      display: inline-flex;
      align-items: center;
      font-size: 1.1rem;
  }
  .contact-methods-inline i {
      margin-right: 0.5rem;
      font-size: 1.3em;
      color: var(--accent-color-yellow);
  }
  .phone-number-link-cta {
      text-decoration: none;
      color: var(--accent-color-yellow);
      font-weight: 600;
  }
  .phone-number-link-cta:hover {
      text-decoration: underline;
      color: var(--accent-color-yellow-darker);
  }
  .contact-options small {
      font-size: 0.9rem;
      opacity: 0.8;
  }
  
  /* css/style.css のフッター関連スタイルを修正 */

.footer-section {
    background-color: var(--base-color-dark);
    color: var(--text-color-on-dark-muted);
    padding: 4rem 0 2rem;
    font-size: 0.9rem;
    overflow-x: hidden;
    width: 100%;
}
.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 2rem; /* 各要素間の隙間 */
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-info {
    flex: 2 1 500px; /* 左側の会社情報エリアを少し広めに */
    min-width: 280px;
}

.footer-company-info-grid {
    display: flex;
    flex-wrap: wrap; /* スマホで折り返し */
    gap: 2rem; /* 各社情報ブロック間の隙間 */
    align-items: flex-start;
}

.footer-company-item {
    flex: 1; /* 各社情報を均等に配置 */
    min-width: 220px; /* 各社情報の最小幅 */
}

.footer-company-logo {
    display: block;
    height: auto;
    margin-bottom: 0.8rem; /* ロゴと社名の間のマージン */
    object-fit: contain;
}
.footer-company-logo.bls {
    max-height: 40px; /* BLSwhite.png (2038x504, ~4:1) */
    max-width: 160px; /* 高さに合わせて調整 */
}
.footer-company-logo.klab {
    max-height: 35px; /* KLab株式会社 ロゴ */
    max-width: 120px;
}


.footer-info p {
    margin: 0.3rem 0; /* 少し詰める */
    line-height: 1.6;
    font-size: 0.85rem; /* 全体的に少し小さく */
}
.footer-info p strong {
    color: var(--text-color-on-dark);
    font-weight: 600;
    font-size: 1.05em; /* 社名だけ少し大きく */
    display: block;
    margin-bottom: 0.2em;
}
.footer-info i {
    margin-right: 0.5em;
    color: var(--text-color-on-dark-muted);
    vertical-align: middle;
}
.footer-info a {
    color: var(--text-color-on-dark-muted);
    text-decoration: none;
    transition: color 0.3s ease;
}
.footer-info a:hover {
    color: var(--accent-color-yellow);
    text-decoration: underline;
}


.footer-links {
    flex: 1 1 200px; /* 右側のリンクエリア */
    text-align: right;
    min-width: 180px;
}
.footer-links a {
    color: var(--text-color-on-dark-muted);
    text-decoration: none;
    margin-bottom: 0.5rem;
    transition: color 0.3s ease;
    display: block;
    padding: 0.2rem 0;
    font-size: 0.9rem; /* 少し調整 */
}
.footer-links a:last-child {
    margin-bottom: 0;
}
.footer-links a:hover,
.footer-links a:focus,
.footer-links a.active {
    color: var(--accent-color-yellow);
    font-weight: 500;
}
.copyright {
    text-align: center;
    font-size: 0.85rem;
    opacity: 0.7;
    padding-top: 1.5rem;
}

/* レスポンシブ対応 (フッター) */
@media (max-width: 768px) {
    .footer-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    .footer-info {
        text-align: center;
        width: 100%; /* スマホでは幅いっぱい */
    }
    .footer-company-info-grid {
        justify-content: center; /* スマホでは中央揃え */
    }
    .footer-company-item {
        margin-bottom: 1.5rem; /* 各社情報ブロック間の隙間 */
    }
    .footer-company-item:last-child {
        margin-bottom: 0;
    }
    .footer-company-logo.bls {
        max-height: 35px;
        max-width: 140px;
        margin-left: auto;
        margin-right: auto;
    }
    .footer-company-logo.klab {
        max-height: 30px;
        max-width: 100px;
        margin-left: auto;
        margin-right: auto;
    }

    .footer-links {
        text-align: center;
        margin-top: 1.5rem;
        width: 100%;
    }
    .footer-links a {
        margin-left: 0; /* スマホでは不要 */
        display: inline-block; /* 横並びに戻すか、blockのままかデザイン次第 */
        padding: 0.5rem 0.8rem;
        margin: 0 0.5rem 0.5rem 0.5rem; /* リンク間の隙間 */
    }
}
  
  /* ===== サブページ共通スタイル ===== */
  .subpage-body {
      background-color: var(--base-color-offwhite);
      color: var(--text-color-on-light);
  }
  
  .subpage-header {
      background-color: var(--base-color-dark);
      padding: 1rem 0;
      box-shadow: 0 2px 10px rgba(0,0,0,0.1);
      position: sticky;
      top: 0;
      z-index: 1000;
      width: 100%;
      overflow-x: hidden;
  }
  .subpage-header .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
  }
  .subpage-logo-link .logos-container.subpage-logos .header-logo.combined {
      height: 48px;
      max-width: 240px;
  }
  
  .subpage-nav {
      display: flex;
      align-items: center;
  }
  .subpage-nav a {
      font-family: var(--body-font);
      color: var(--text-color-on-dark-muted);
      text-decoration: none;
      margin-left: 1.2rem;
      font-size: 0.85rem;
      font-weight: 500;
      transition: color 0.3s ease, background-color 0.3s ease;
      padding: 0.3rem 0.5rem;
      border-radius: 4px;
  }
  .subpage-nav a:first-child {
      margin-left: 0;
  }
  .subpage-nav a:hover,
  .subpage-nav a.active {
      color: var(--accent-color-yellow);
      background-color: rgba(255, 193, 7, 0.1);
  }
  
  
  .subpage-main-content {
      background-color: var(--base-color-light);
      border-radius: 10px;
      box-shadow: 0 8px 30px rgba(0,0,0,0.07);
      margin: 3rem auto;
      padding: 3rem;
  }
  
  .subpage-title {
      font-family: var(--heading-font);
      font-size: 2.2rem;
      color: var(--text-color-on-light);
      text-align: center;
      margin-bottom: 2.5rem;
      border-bottom: 3px solid var(--main-color-blue-lighter);
      padding-bottom: 0.8rem;
  }
  .subpage-title .highlight {
      color: var(--main-color-blue);
  }
  
  
  .text-content-area {
      max-width: 800px;
      margin: 0 auto;
      line-height: 1.8;
  }
  .text-content-area h2 {
      font-family: var(--heading-font);
      font-size: 1.6rem;
      color: var(--heading-color-on-light-bg);
      margin-top: 2.5rem;
      margin-bottom: 1rem;
      border-bottom: 1px solid var(--border-color-light);
      padding-bottom: 0.6rem;
  }
  .text-content-area p, .text-content-area li, .text-content-area dd {
      margin-bottom: 1em;
      color: var(--text-color-on-light-muted);
  }
  .text-content-area ol, .text-content-area ul {
      padding-left: 1.5em;
  }
  .text-content-area ol ol {
      list-style-type: lower-alpha;
  }
  .text-content-area a {
      color: var(--main-color-blue);
      text-decoration: underline;
      text-decoration-thickness: 1px;
      text-underline-offset: 0.15em;
  }
  .text-content-area a:hover {
      color: var(--main-color-blue-darker);
      text-decoration: none;
  }
  .text-right {
      text-align: right;
      margin-top: 2rem;
      font-size: 0.9em;
  }
  address.contact-address {
      font-style: normal;
      line-height: 1.7;
  }
  address.contact-address a {
      color: var(--main-color-blue);
  }
  
  
  /* 英語フォント用クラス */
  .inter-font {
      font-family: 'Inter', sans-serif;
  }

  /* 特徴見出しの背景青色スタイル */
  .feature-header-blue {
      background-color: var(--main-color-blue);
      color: var(--white);
      padding: 1rem 1.5rem;
      margin-bottom: 1.5rem;
      border-radius: 8px;
  }
  .feature-header-blue h2 {
      color: var(--white) !important;
  }
  .feature-header-blue .feature-icon {
      color: var(--white);
  }

  /* features.html 専用スタイル */
  .feature-detail-section {
      padding: 3.5rem 0;
      border-bottom: 1px solid var(--border-color-light);
  }
  .feature-detail-section:last-of-type {
      border-bottom: none;
      padding-bottom: 1rem;
  }
  
  .feature-header {
      display: flex;
      align-items: center;
      margin-bottom: 1.5rem;
  }
  
  .feature-icon {
      font-size: 2.8rem;
      color: var(--main-color-blue);
      margin-right: 1.2rem;
      line-height: 1;
      flex-shrink: 0;
  }
  
  .feature-header h2 {
      font-family: var(--heading-font);
      font-size: 2rem;
      color: var(--main-color-blue);
      margin: 0;
      line-height: 1.3;
  }
  .feature-header .feature-number {
      background-color: var(--white);
      color: var(--main-color-blue);
      padding: 0.3rem 0.8rem;
      border-radius: 4px;
      font-size: 0.9em;
      font-weight: 600;
      margin-right: 0.5rem;
      vertical-align: middle;
      display: inline-block;
  }
  
  .feature-content {
      padding-left: calc(2.8rem + 1.2rem);
  }
  .feature-content p {
      margin-bottom: 1rem;
      line-height: 1.8;
      color: var(--text-color-on-light-muted);
  }
  .feature-content p strong {
      color: var(--text-color-on-light);
      font-weight: 600;
  }
  .feature-content .notice-small sup,
  .feature-content p sup.text-super-highlight {
      font-size: 0.75em;
      vertical-align: super;
      color: var(--main-color-blue);
      font-weight: bold;
      margin-left: 0.1em;
  }
  .feature-content p sup.text-super-highlight {
      color: var(--accent-color-yellow);
  }
  
  
  .nvidia-info-container {
      display: flex;
      flex-wrap: wrap;
      align-items: flex-start;
      gap: 2.5rem;
      background-color: var(--base-color-offwhite);
      padding: 2.5rem;
      border-radius: 10px;
      margin-top: 2rem;
      border: 1px solid var(--border-color-light);
  }
  .nvidia-logo-area {
      flex: 0 0 180px;
      text-align: center;
  }
  .nvidia-logo-area img {
      max-width: 100%;
      max-height: 100px;
      height: auto;
      object-fit: contain;
      cursor: zoom-in; /* Lightbox適用 */
      transition: transform 0.3s ease;
  }
  .nvidia-logo-area img:hover {
      transform: scale(1.05);
  }
  .nvidia-data-area {
      flex: 1;
  }
  .nvidia-data-area h3 {
      font-family: var(--heading-font);
      font-size: 1.5rem;
      color: var(--heading-color-on-light-bg);
      margin-top: 0;
      margin-bottom: 1.2rem;
  }
  .nvidia-data-area ul {
      list-style: none;
      padding-left: 0;
      margin: 0;
      font-size: 0.95rem;
  }
  .nvidia-data-area ul li {
      margin-bottom: 0.8rem;
      color: var(--text-color-on-light-muted);
      padding-left: 1.5em;
      position: relative;
  }
  .nvidia-data-area ul li::before {
      content: "\ea58"; /* Tabler Icon: ti-check */
      font-family: 'tabler-icons';
      position: absolute;
      left: 0;
      color: var(--main-color-blue);
      font-size: 1.1em;
  }
  
  .nvidia-data-area ul li small {
      display: block;
      font-size: 0.9em;
      opacity: 0.8;
      margin-top: 0.2em;
  }
  .external-link {
      font-weight: 600;
      color: var(--main-color-blue);
      text-decoration: none;
      display: inline-flex;
      align-items: center;
  }
  .external-link:hover {
      text-decoration: underline;
      color: var(--main-color-blue-darker);
  }
  .external-link i {
      font-size: 1em;
      margin-left: 0.3em;
      vertical-align: middle;
  }
  
  .feature-chart-container {
      height: 380px;
      max-width: 650px;
      margin-left: auto;
      margin-right: auto;
      margin-top: 2rem;
      margin-bottom: 1rem;
      padding: 1rem;
      background-color: var(--base-color-offwhite);
      border-radius: 8px;
      border: 1px solid var(--border-color-light);
  }
  .feature-image-wrapper {
      margin-top: 1.5rem;
      margin-bottom: 1rem;
      text-align: center;
  }
  .feature-image {
      max-width: 100%; /* ラッパー幅に合わせる */
      width: auto;
      max-height: 400px; /* 初期表示画像サイズを大きく */
      max-width: 750px;  /* 初期表示画像サイズを大きく */
      border-radius: 8px;
      box-shadow: var(--card-shadow);
      object-fit: contain;
      margin-left: auto;
      margin-right: auto;
      display: block;
      cursor: zoom-in;
      transition: transform 0.3s ease;
  }
  .feature-image:hover {
      transform: scale(1.03);
  }
  .feature-image.company-logo { /* KLab個別ロゴ (features.htmlからは削除された) */
      max-height: 60px;
      box-shadow: none;
      border: none;
      cursor: default;
  }
  .feature-image.company-logo:hover {
      transform: none;
  }
  .notice-small {
      font-size: 0.85rem;
      color: var(--text-color-on-light-muted);
      opacity: 0.9;
      line-height: 1.5;
      margin-top: 0.5rem;
  }
  .business-scheme-image img {
      /* .feature-image にスタイル統合 */
  }
  .business-scheme-image img:hover {
      /* .feature-image:hover にスタイル統合 */
  }
  .klab-logo-area img {
      /* HTMLから削除 */
  }
  .klab-logo-area img:hover {
      /* HTMLから削除 */
  }
  
  .image-comparison-container {
      display: flex;
      justify-content: center;
      align-items: center;
      margin-top: 2.5rem;
      margin-bottom: 1.5rem;
      background-color: var(--base-color-offwhite);
      padding: 1.5rem;
      border-radius: 8px;
      border: 1px solid var(--border-color-light);
  }
  .landscape-comparison-image { /* 特徴1の1枚画像 */
      max-width: 100%;
      width: auto;
      max-height: 400px; /* 初期表示画像サイズを大きく */
      max-width: 750px;  /* 初期表示画像サイズを大きく */
      border-radius: 6px;
      box-shadow: var(--card-shadow);
      display: block;
      margin: 0 auto;
      cursor: zoom-in;
      transition: transform 0.3s ease;
  }
  .landscape-comparison-image:hover {
      transform: scale(1.03);
  }
  
  
  /* investment-details.html 専用スタイル */
  /* (この下に、前回提供した investment-details.html, faq.html, contact.html, company-profile.html の各専用スタイル、そしてレスポンシブスタイルが全て続きます) */
  /* (これらは変更がないため、省略せずにそのままコピーしてください) */
  .product-simulation-detail-section {
      padding-bottom: 3rem;
  }
  
  .sub-section-title {
      font-family: var(--heading-font);
      font-size: 2rem;
      color: var(--main-color-blue);
      text-align: center;
      margin-bottom: 2.5rem;
      padding-bottom: 0.5rem;
      border-bottom: 2px solid var(--main-color-blue-lighter);
  }
  .scta-info-section .sub-section-title-border {
      font-family: var(--heading-font);
      font-size: 1.8rem;
      color: var(--main-color-blue);
      text-align: center;
      margin-top: 4rem;
      margin-bottom: 2rem;
      padding-bottom: 0.8rem;
      border-bottom: 2px solid var(--main-color-blue-lighter);
  }
  
  
  .product-info-grid {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 2.5rem;
      margin-bottom: 3rem;
  }
  
  .product-image-area {
      flex: 1 1 300px;
      text-align: center;
  }
  .product-image-area img {
      max-width: 100%;
      max-height: 280px;
      height: auto;
      border-radius: 8px;
      box-shadow: var(--card-shadow);
      object-fit: contain;
      cursor: zoom-in;
      transition: transform 0.3s ease;
  }
  .product-image-area img:hover {
      transform: scale(1.03);
  }
  
  
  .product-details-area {
      flex: 1.5 1 400px;
  }
  .product-details-area h3 {
      font-family: var(--heading-font);
      font-size: 1.8rem;
      color: var(--text-color-on-light);
      margin-top: 0;
      margin-bottom: 0.5rem;
  }
  .product-price-detail {
      font-size: 1.5rem;
      font-weight: 700;
      color: var(--main-color-blue);
      margin-bottom: 1rem;
  }
  .tax-info-detail {
      font-size: 0.8em;
      font-weight: normal;
      color: var(--text-color-on-light-muted);
  }
  .product-details-area p {
      font-size: 1rem;
      line-height: 1.7;
      color: var(--text-color-on-light-muted);
      margin-bottom: 0.8rem;
  }
  
  .simulation-detail-title {
      font-family: var(--heading-font);
      font-size: 1.6rem;
      color: var(--main-color-blue);
      text-align: center;
      margin-top: 3rem;
      margin-bottom: 2rem;
  }
  
  .simulation-detail-content {
      background-color: var(--base-color-offwhite);
      padding: 2rem;
      border-radius: 8px;
      border: 1px solid var(--border-color-light);
  }
  .simulation-comparison {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 2rem;
      justify-items: center;
      margin-bottom: 1.5rem;
  }
  .simulation-case {
      text-align: center;
      padding: 1.5rem;
      background-color: var(--base-color-light);
      border-radius: 8px;
      box-shadow: var(--card-shadow);
      width: 100%;
      max-width: 350px;
  }
  .simulation-case h4 {
      font-family: var(--heading-font);
      font-size: 1.3rem;
      color: var(--heading-color-on-light-bg);
      margin-top: 0;
      margin-bottom: 1rem;
  }
  .simulation-graph-container {
      width: 100%;
      height: 220px;
      margin-bottom: 1rem;
  }
  .simulation-result-value {
      font-size: 1.1rem;
      color: var(--text-color-on-light);
      margin-bottom: 0.5rem;
  }
  .simulation-result-value .value-highlight-neutral,
  .simulation-result-value .value-highlight-positive,
  .simulation-result-value .value-highlight-positive-sub {
      font-size: 1.8rem;
      font-weight: 700;
      display: block;
      margin-top: 0.2em;
  }
  .value-highlight-neutral { color: var(--text-color-on-light-muted); }
  .value-highlight-positive { color: var(--main-color-blue); }
  .value-highlight-positive-sub { color: var(--main-color-blue-darker); font-size: 1.5rem;}
  
  .simulation-sub-text {
      font-size: 0.9rem;
      color: var(--text-color-on-light-muted);
      margin-top: 0.3rem;
      margin-bottom: 1rem;
  }
  
  .simulation-notes {
      font-size: 0.85rem;
      color: var(--text-color-on-light-muted);
      line-height: 1.6;
      text-align: left;
      margin-top: 2rem;
      padding: 1rem;
      background-color: var(--base-color-light);
      border-radius: 4px;
      border: 1px dashed var(--border-color-light);
  }
  .simulation-notes p {
      margin-bottom: 0.5em;
  }
  .simulation-table-wrapper {
      margin-top: 2rem;
      overflow-x: auto;
  }
  .simple-table {
      width: 100%;
      min-width: 500px;
      border-collapse: collapse;
      margin-bottom: 1rem;
      font-size: 0.95rem;
      background-color: var(--base-color-light);
      border-radius: 8px;
      box-shadow: var(--card-shadow);
      border: 1px solid var(--border-color-light);
      overflow: hidden;
  }
  .simple-table th, .simple-table td {
      padding: 0.8rem 1rem;
      text-align: left;
      border-bottom: 1px solid var(--border-color-light);
  }
  .simple-table thead th {
      background-color: var(--base-color-offwhite);
      font-weight: 600;
      color: var(--heading-color-on-light-bg);
  }
  .simple-table tbody tr:last-child td {
      border-bottom: none;
  }
  .simple-table td strong {
      color: var(--main-color-blue);
      font-weight: 700;
  }
  
  
  .comparison-section {
      background-color: var(--base-color-offwhite);
      padding-top: 3rem;
      padding-bottom: 4rem;
      border-radius: 8px;
      margin-top:3rem;
  }
  .comparison-section .sub-section-title {
      color: var(--heading-color-on-light-bg);
  }
  
  .comparison-table-container {
      overflow-x: auto;
      margin-top: 1.5rem;
      width: 100%;
  }
  .comparison-table.styled-table {
      width: 100%;
      min-width: 700px;
      border-collapse: separate;
      border-spacing: 0;
      font-size: 0.9rem;
      box-shadow: var(--card-shadow);
      border-radius: 10px;
      overflow: hidden;
      border: 1px solid var(--border-color-light);
  }
  .comparison-table.styled-table th,
  .comparison-table.styled-table td {
      padding: 1rem 1.2rem;
      text-align: left;
      border-bottom: 1px solid var(--border-color-light);
      vertical-align: middle;
  }
  .comparison-table.styled-table thead th {
      background-color: var(--main-color-blue);
      color: var(--white);
      font-weight: 600;
      text-align: center;
      white-space: nowrap;
      border-bottom-width: 2px;
      border-bottom-color: var(--main-color-blue-darker);
  }
  .comparison-table.styled-table tbody tr:nth-child(even) td {
      background-color: var(--base-color-offwhite);
  }
  .comparison-table.styled-table tbody tr:hover td {
      background-color: #e2e9f3;
  }
  .comparison-table.styled-table td.row-header {
      font-weight: 600;
      background-color: #e9ecef;
      color: var(--heading-color-on-light-bg);
      white-space: nowrap;
      border-right: 1px solid var(--border-color-light);
  }
  .comparison-table.styled-table td.highlight-col {
      background-color: rgba(0, 123, 255, 0.05);
  }
  .comparison-table.styled-table td strong {
      color: var(--main-color-blue);
      font-weight: 700;
  }
  .comparison-table.styled-table small {
      display: block;
      font-size: 0.9em;
      color: var(--text-color-on-light-muted);
      margin-top: 0.2em;
  }
  .comparison-table.styled-table tbody tr:last-child td {
      border-bottom: none;
  }
  
  .faq-container {
      margin-top: 2rem;
      max-width: 850px;
  }
  
  .faq-item {
      border: 1px solid var(--border-color-light);
      border-radius: 8px;
      margin-bottom: 1.2rem;
      background-color: var(--base-color-light);
      box-shadow: 0 2px 8px rgba(0,0,0,0.05);
      transition: box-shadow 0.3s ease;
  }
  .faq-item:last-of-type {
      margin-bottom: 0;
  }
  .faq-item:hover {
      box-shadow: var(--card-shadow);
  }
  
  .faq-item[open] > summary.faq-question {
      border-bottom: 1px solid var(--border-color-light);
      background-color: var(--base-color-offwhite);
      color: var(--main-color-blue);
  }
  .faq-item[open] > summary.faq-question .expand-icon {
      transform: rotate(180deg);
      color: var(--main-color-blue);
  }
  
  .faq-question {
      font-family: var(--heading-font);
      font-size: 1.15rem;
      font-weight: 600;
      color: var(--heading-color-on-light-bg);
      padding: 1.2rem 1.5rem;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      list-style: none;
      position: relative;
      transition: background-color 0.2s ease, color 0.2s ease;
      border-radius: 8px;
  }
  .faq-item[open] > summary.faq-question {
      border-bottom-left-radius: 0;
      border-bottom-right-radius: 0;
  }
  
  .faq-question::-webkit-details-marker {
      display: none;
  }
  .faq-question:hover {
      background-color: var(--base-color-offwhite);
  }
  .faq-question:focus-visible {
      outline: 2px solid var(--main-color-blue-lighter);
      outline-offset: 2px;
      border-radius: 6px;
  }
  
  .expand-icon {
      font-size: 1.2rem;
      color: var(--text-color-on-light-muted);
      transition: transform 0.3s ease, color 0.2s ease;
      margin-left: 1rem;
      line-height: 1;
  }
  
  .faq-answer {
      padding: 1.5rem 1.8rem;
      font-size: 1rem;
      line-height: 1.7;
      color: var(--text-color-on-light-muted);
      border-top-left-radius: 0;
      border-top-right-radius: 0;
      border-bottom-left-radius: 8px;
      border-bottom-right-radius: 8px;
  }
  .faq-answer p, .faq-answer ol, .faq-answer ul {
      margin-bottom: 1em;
  }
  .faq-answer p:last-child, .faq-answer ol:last-child, .faq-answer ul:last-child {
      margin-bottom: 0;
  }
  .faq-answer ol, .faq-answer ul {
      padding-left: 1.5em;
  }
  .faq-answer strong {
      color: var(--text-color-on-light);
      font-weight: 600;
  }
  
  .contact-info-area .lead-text {
      font-size: 1.15rem;
      margin-bottom: 3rem;
      color: var(--text-color-on-light);
  }
  .contact-methods-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 2rem;
      margin-bottom: 3rem;
  }
  .contact-method-card {
      background-color: var(--base-color-offwhite);
      padding: 2rem;
      border-radius: 8px;
      text-align: center;
      box-shadow: var(--card-shadow);
      border: 1px solid var(--border-color-light);
  }
  .contact-method-card .btn-primary {
      color: var(--white);
  }
  .contact-method-card h3 {
      font-family: var(--heading-font);
      font-size: 1.4rem;
      color: var(--main-color-blue);
      margin-top: 0;
      margin-bottom: 1rem;
      display: flex;
      align-items: center;
      justify-content: center;
  }
  .contact-method-card h3 i {
      font-size: 1.6rem;
      margin-right: 0.7rem;
      color: var(--main-color-blue);
  }
  .contact-method-card p {
      margin-bottom: 1.2rem;
      font-size: 0.95rem;
      color: var(--text-color-on-light-muted);
  }
  .contact-method-card .small-text {
      font-size: 0.85rem;
      opacity: 0.8;
      margin-top: 0.8rem;
  }
  .contact-method-card .btn {
      margin-top: 0.5rem;
      width: auto;
      padding-left: 2.5rem;
      padding-right: 2.5rem;
  }
  .contact-phone-number.btn {
      font-size: 1.2rem;
      background-color: transparent;
      border: 2px solid var(--main-color-blue);
      color: var(--main-color-blue);
  }
  .contact-phone-number.btn:hover {
      background-color: var(--main-color-blue);
      color: var(--white);
  }
  
  .additional-contact-methods {
      margin-top: 3rem;
      padding-top: 2rem;
      border-top: 1px solid var(--border-color-light);
      text-align: center;
  }
  .additional-contact-methods h3 {
      font-family: var(--heading-font);
      font-size: 1.4rem;
      color: var(--main-color-blue);
      margin-bottom: 1.5rem;
      display: flex;
      align-items: center;
      justify-content: center;
  }
  .additional-contact-methods h3 i {
      font-size: 1.6rem;
      margin-right: 0.7rem;
  }
  .contact-social-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 1.5rem;
      margin-top: 1rem;
  }
  .contact-social-item {
      background-color: var(--base-color-offwhite);
      padding: 1.5rem;
      border-radius: 8px;
      box-shadow: var(--card-shadow);
      border: 1px solid var(--border-color-light);
  }
  .contact-social-item .social-icon {
      font-size: 2.5rem;
      margin-bottom: 0.8rem;
      display: block;
  }
  .contact-social-item .social-icon.line { color: #00B900; }
  .contact-social-item .social-icon.chatwork { color: #205081; }
  
  .contact-social-item p {
      margin-bottom: 0.3rem;
      font-size: 1rem;
      color: var(--text-color-on-light);
  }
  .contact-social-item p strong {
      font-weight: 600;
  }
  .contact-social-item .small-text {
      font-size: 0.85rem;
      color: var(--text-color-on-light-muted);
  }
  
  
  .company-info-contactpage {
      margin-top: 3rem;
      padding-top: 2rem;
      border-top: 1px solid var(--border-color-light);
      text-align: center;
  }
  .company-info-contactpage h3 {
      font-family: var(--heading-font);
      font-size: 1.4rem;
      color: var(--main-color-blue);
      margin-bottom: 1rem;
      display: flex;
      align-items: center;
      justify-content: center;
  }
  .company-info-contactpage h3 i {
      font-size: 1.6rem;
      margin-right: 0.7rem;
  }
  .company-info-contactpage address {
      font-style: normal;
      line-height: 1.7;
      color: var(--text-color-on-light-muted);
  }
  .company-info-contactpage address strong {
      color: var(--text-color-on-light);
      font-weight: 600;
      display: block;
      margin-bottom: 0.3rem;
  }
  
  
  .contact-form-container {
      margin-top: 3rem;
      border-top: 1px solid var(--border-color-light);
      padding-top: 2rem;
  }
  .contact-form-container h2 {
      text-align: center;
      font-size: 1.8rem;
      color: var(--main-color-blue);
      margin-bottom: 1rem;
  }
  .contact-form-container p {
      text-align: center;
      margin-bottom: 2rem;
      color: var(--text-color-on-light-muted);
  }
  .contact-form div {
      margin-bottom: 1.5rem;
  }
  .contact-form label {
      display: block;
      margin-bottom: 0.5rem;
      font-weight: 600;
      color: var(--heading-color-on-light-bg);
  }
  .contact-form label span {
      font-size: 0.8em;
      color: #e74c3c;
      margin-left: 0.3em;
      font-weight: normal;
  }
  .contact-form input[type="text"],
  .contact-form input[type="email"],
  .contact-form input[type="tel"],
  .contact-form select,
  .contact-form textarea {
      width: 100%;
      padding: 0.8rem 1rem;
      border: 1px solid var(--border-color-light);
      border-radius: 4px;
      box-sizing: border-box;
      font-family: var(--body-font);
      font-size: 1rem;
      background-color: var(--base-color-light);
      color: var(--text-color-on-light);
  }
  .contact-form input::placeholder,
  .contact-form textarea::placeholder {
      color: #aaa;
  }
  
  .contact-form textarea {
      min-height: 120px;
      resize: vertical;
  }
  .contact-form.disabled-form input,
  .contact-form.disabled-form select,
  .contact-form.disabled-form textarea,
  .contact-form.disabled-form button {
      background-color: #e9ecef;
      cursor: not-allowed;
      opacity: 0.7;
  }
  .contact-form button[type="submit"] {
      width: 100%;
      max-width: 300px;
      display: block;
      margin: 2rem auto 0;
  }
  /* company-profile.html 専用スタイル */
  .company-profile-section {
      margin-bottom: 3.5rem;
      background-color: var(--base-color-light);
      padding: 2.5rem;
      border-radius: 10px;
      box-shadow: var(--card-shadow);
      border: 1px solid var(--border-color-light);
  }
  .company-profile-section:last-of-type {
      margin-bottom: 0;
  }
  
  .company-block {
      /* 各社の情報をまとめるブロック */
  }
  
  .company-identity, .company-identity-alt { /* 会社概要ページのロゴと社名エリア */
      display: flex;
      flex-wrap: wrap;
      align-items: center; /* 垂直中央揃え */
      gap: 1.5rem; /* ロゴと社名・役割の間のスペース */
      margin-bottom: 2rem;
      padding-bottom: 2rem;
      border-bottom: 1px solid var(--border-color-light);
  }
  .company-logo-wrapper, .company-logo-wrapper-alt { /* 個別ロゴのラッパー */
      flex-shrink: 0;
      line-height: 0; /* 画像下の余分なスペース対策 */
  }
  .company-logo-image, .company-logo-image-alt { /* 各社の個別ロゴ */
      display: block;
      max-height: 50px;   /* ★ 両ロゴに共通の最大高さ */
      width: auto;
      max-width: 220px;   /* 横長ロゴが広がりすぎないように */
      object-fit: contain;
  }
  /* 個別のロゴで微調整が必要な場合 (例) */
  .company-logo-image.bls-specific-logo { /* BLOCKSMITHロゴ (ほぼ正方形なので高さ基準でOK) */
       max-height: 50px;
  }
  .company-logo-image.klab-specific-logo-companypage { /* KLabロゴ (横長) */
      max-height: 40px; /* 少し高さを抑えてバランスを取る */
      max-width: 150px;
  }
  
  
  .company-name-wrapper, .company-name-wrapper-alt {
      flex-grow: 1;
  }
  .company-name-large {
      font-family: var(--heading-font);
      font-size: 1.8rem;
      color: var(--main-color-blue);
      margin: 0 0 0.3rem 0;
      line-height: 1.3;
  }
  .company-name-large .company-name-en,
  .company-name-large .company-stock-code {
      font-size: 0.7em;
      font-weight: 400;
      color: var(--text-color-on-light-muted);
      display: block;
      margin-top: 0.2em;
  }
  .company-role, .company-role-page {
      font-size: 1.1rem;
      color: var(--text-color-on-light);
      font-weight: 500;
  }
  
  
  .company-details-wrapper {
      /* 詳細情報をまとめるラッパー */
  }
  
  .company-info-table {
      margin-bottom: 2rem;
  }
  .company-info-table.styled-dl dl {
      border: 1px solid var(--border-color-light);
      border-radius: 8px;
      overflow: hidden;
  }
  .company-info-table.styled-dl dt,
  .company-info-table.styled-dl dd {
      padding: 1rem 1.5rem; /* パディング調整 */
      border-bottom: 1px solid var(--border-color-light);
      font-size: 0.95rem; /* 少し小さく */
  }
  .company-info-table.styled-dl dt {
      background-color: var(--base-color-offwhite);
      font-weight: 600;
      color: var(--heading-color-on-light-bg);
      width: 30%;
      float: left;
      box-sizing: border-box;
      clear: left;
      display: flex;
      align-items: center;
  }
  .company-info-table.styled-dl dt i {
      margin-right: 0.6em;
      color: var(--main-color-blue);
      font-size: 1.2em;
  }
  .company-info-table.styled-dl dd {
      margin-left: 30%;
      box-sizing: border-box;
      background-color: var(--base-color-light);
      color: var(--text-color-on-light-muted);
  }
  .company-info-table.styled-dl dl:last-of-type dd:last-of-type {
      border-bottom: none;
  }
  .company-info-table.styled-dl dd ul {
      padding-left: 0;
      list-style-position: inside;
  }
  .company-info-table.styled-dl dd ul.sub-list {
      padding-left: 1em;
      list-style-type: disc;
  }
  
  
  .representative-profile, .representative-profile-detailed {
      display: flex;
      flex-wrap: wrap;
      gap: 2.5rem;
      margin-top: 2.5rem;
      padding: 2rem;
      background-color: var(--base-color-offwhite);
      border-radius: 8px;
      border: 1px solid var(--border-color-light);
      align-items: flex-start;
  }
  .representative-photo, .representative-photo-detailed {
      flex: 0 0 200px;
      text-align: center;
  }
  .representative-photo img, .representative-photo-detailed img {
      width: 100%;
      max-width: 180px;
      height: auto;
      border-radius: 8px; /* 丸枠から角丸に変更 */
      box-shadow: var(--card-shadow);
      /* aspect-ratio: 1 / 1; */ /* 縦長画像なので不要 */
      object-fit: cover;
      object-position: top center; /* 縦長画像なので上部を中心に */
      max-height: 260px; /* 高さを制限 */
  }
  .representative-info, .representative-info-detailed {
      flex: 1;
      min-width: 300px;
  }
  .representative-title, .representative-title-detailed {
      font-family: var(--heading-font);
      font-size: 1.6rem;
      color: var(--main-color-blue);
      margin-top: 0;
      margin-bottom: 1.2rem;
      line-height: 1.4;
  }
  .representative-title .representative-reading,
  .representative-title-detailed .representative-reading-detailed {
      font-size: 0.7em;
      font-weight: 400;
      color: var(--text-color-on-light-muted);
      display: block;
      margin-top: 0.2em;
  }
  .representative-history, .representative-history-detailed {
      list-style: none;
      padding-left: 0;
  }
  .representative-history li, .representative-history-detailed li {
      margin-bottom: 0.8rem;
      padding-left: 1.8em;
      position: relative;
      font-size: 0.9rem;
      color: var(--text-color-on-light-muted);
      line-height: 1.6;
  }
  .representative-history li::before, .representative-history-detailed li::before {
      content: "\ea65";
      font-family: 'tabler-icons';
      position: absolute;
      left: 0;
      top: 0.1em;
      color: var(--main-color-blue-lighter);
      font-size: 1.2em;
  }
  .representative-history li strong, .representative-history-detailed li strong {
      color: var(--text-color-on-light);
      font-weight: 600;
      margin-right: 0.5em;
  }
  
  .company-message, .company-message-detailed {
      margin-top: 2rem;
      padding: 1.5rem;
      background-color: var(--base-color-offwhite);
      border-left: 4px solid var(--main-color-blue);
      border-radius: 0 4px 4px 0;
  }
  .company-message p, .company-message-detailed p {
      margin-bottom: 0;
      font-size: 1rem;
      color: var(--text-color-on-light-muted);
  }
  .company-message i, .company-message-detailed i {
      color: var(--main-color-blue);
      margin-right: 0.5em;
      font-size: 1.2em;
      vertical-align: middle;
  }
  
  .investors-section, .investors-section-detailed {
      margin-top: 2.5rem;
      padding-top: 2rem;
      border-top: 1px solid var(--border-color-light);
  }
  .investors-section h4, .investors-section-detailed h4 {
      font-family: var(--heading-font);
      font-size: 1.5rem;
      color: var(--main-color-blue);
      margin-bottom: 1.5rem;
      text-align: center;
      display: flex;
      align-items: center;
      justify-content: center;
  }
  .investors-section h4 i, .investors-section-detailed h4 i {
      margin-right: 0.5em;
      font-size: 1.2em;
  }
  .investor-list, .investor-list-detailed {
      list-style: none;
      padding-left: 0;
      columns: 2;
      -webkit-columns: 2;
      -moz-columns: 2;
      gap: 1.5rem;
  }
  .investor-list li, .investor-list-detailed li {
      margin-bottom: 0.7rem;
      font-size: 0.9rem;
      color: var(--text-color-on-light-muted);
      padding-left: 1.5em;
      position: relative;
      break-inside: avoid;
  }
  .investor-list li::before, .investor-list-detailed li::before {
      content: "\ea11";
      font-family: 'tabler-icons';
      position: absolute;
      left: 0;
      top: 0.1em;
      color: var(--main-color-blue-lighter);
      font-size: 1em;
  }
  .investor-logos-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
      gap: 2rem;
      align-items: center;
      margin-top: 1rem;
  }
  .investor-logo-item img {
      max-width: 100%;
      max-height: 45%;
      object-fit: contain;
      opacity: 0.8;
      transition: opacity 0.3s ease;
      margin: 0 auto; /* グリッドアイテム内で中央揃え */
      display: block; /* 中央揃えのため */
  }
  .investor-logo-item img:hover {
      opacity: 1;
  }
  
  .scta-info-section .sub-section-title-border {
      font-family: var(--heading-font);
      font-size: 1.8rem;
      color: var(--main-color-blue);
      text-align: center;
      margin-top: 4rem;
      margin-bottom: 2rem;
      padding-bottom: 0.8rem;
      border-bottom: 2px solid var(--main-color-blue-lighter);
  }
  
  
  /* ===== レスポンシブ対応 ===== */
  @media (max-width: 992px) {
      html { font-size: 15px; }
      .section-title { font-size: 2.4rem; max-width: 90%;}
      .hero-section h1 { font-size: 2.6rem; }
      /* .benefit-item, .benefit-item-reverse { gap: 2.5rem; } */
      /* .chart-container { max-width: 100%; height: 280px;} */
      .solution-graph-chart-container { height: 320px; }
      .feature-chart-container { height: 320px; }
      .simulation-graph-container { height: 200px; }
  
      .simulation-grid { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.5rem;}
      .simulation-card .simulation-value { font-size: 2rem; }
      .simulation-card.simulation-card-total .simulation-value { font-size: 2.2rem; }
  
      .problem-section .section-title {
          font-size: 1.8rem;
          white-space: nowrap;
          overflow: hidden;
          text-overflow: ellipsis;
          letter-spacing: -0.02em;
      }
      .feature-header h2 { font-size: 1.8rem; }
      .subpage-title { font-size: 2rem; }
      .company-name-large { font-size: 1.6rem; }
      .representative-title, .representative-title-detailed { font-size: 1.4rem; }
      .investor-list, .investor-list-detailed { columns: 1; -webkit-columns: 1; -moz-columns: 1; }
      .investor-logos-grid { grid-template-columns: repeat(auto-fit, minmax(100px, 1fr)); gap: 1.5rem;}
  
  
  }
  
  @media (max-width: 768px) {
      html { font-size: 14px; }
      .section-padding { padding: 3.5rem 0; }
      .section-padding-deep { padding: 4.5rem 0; }
      .section-title { font-size: 2rem; margin-bottom: 2.2rem; }
  
      .hero-section { min-height: auto; padding-top: 5rem; padding-bottom: 3.5rem; background-attachment: scroll;}
      .logos-container.hero-logos .header-logo.combined { max-height: 35px; max-width: 180px; }
      .hero-main-logo-container { margin-bottom: 1.5rem; }
      .hero-main-logo { max-height: 45px; max-width: 250px; }
      .hero-section h1 { font-size: 2rem; }
      .hero-subtitle { font-size: 1.05rem; margin-bottom: 2.2rem; }
      
      /* ヘッダーのロゴとGPU AIクラウドテキストのスマホ対応 */
      .header-logo-group {
          gap: 5px; /* スペースを小さく */
      }
      .klab-logo {
          height: 25px; /* ロゴサイズを小さく */
      }
      .gpu-ai-cloud-text {
          font-size: 0.65rem; /* テキストサイズを小さく */
          transform: translateY(-4px) translateX(-10px); /* スマホ版のみ位置を下げる */
      }
      
      /* ヒーローセクションのロゴとテキストのスマホ対応 */
      .hero-logo-group {
          gap: 5px; /* スペースを小さく */
      }
      .hero-klab-logo {
          height: 40px; /* ロゴサイズを小さく */
      }
      .hero-x-text {
          font-size: 1.8rem; /* ×記号を小さく */
      }
      .hero-gpu-ai-cloud-text {
          font-size: 2.0rem; /* GPU AI クラウドテキストを小さく */
          position: relative;
          top: 7px; /* 少し下に移動 */
      }
      
      /* スマホ版のみファーストビューの要素を下に移動 */
      .hero-content {
          padding-top: 4rem; /* 上部の余白を追加 */
          padding-bottom: 4rem;
      }
      .hero-main-logo-container {
          margin-bottom: 3rem; /* ロゴ下の余白を増やす */
      }
      
      /* CTAセクションのスマホ対応 */
      .cta-section .container {
          padding-left: 15px;
          padding-right: 15px;
      }
      .cta-section .section-title {
          text-align: center !important;
          margin-left: auto;
          margin-right: auto;
          width: 100%;
      }
  
      .desktop-only { display: none; }
      .mobile-only { display: inline; }
  
      .problem-section .section-title {
          font-size: 1.8rem;
          letter-spacing: normal;
          white-space: nowrap;
          overflow: hidden;
          text-overflow: ellipsis;
          max-width: 100%;
      }
      .gpu-definition-grid {
          text-align: center;
      }
      .gpu-image-container {
          margin-bottom: 1.5rem;
      }
      .gpu-text-container p {
          text-align: left;
      }
      .solution-overview-section .lead-text.solution-overview-intro { font-size: 1.1em; }
      .solution-steps-grid { grid-template-columns: 1fr; }
  
  
      .solution-graph-chart-container { height: 300px; }
      .feature-chart-container { height: 300px; }
      .simulation-graph-container { height: 180px; }
  
  
      .keypoints-grid { grid-template-columns: 1fr; gap: 1.8rem;}
      .keypoint-card { padding: 1.8rem; }
      .keypoint-card h3 { min-height: auto; font-size: 1.4rem; }
      .keypoint-card p { font-size: 0.9rem; }
  
      .features-overview-grid { grid-template-columns: 1fr; gap: 1.5rem;}
      .feature-overview-card h4 { font-size: 1.1rem; min-height: auto;}
      .feature-overview-card p { font-size: 0.85rem; }
  
      /* .benefit-item, .benefit-item-reverse は削除済み */
  
      /* .chart-container { height: 250px; padding: 1rem;} */ /* 削除済み */
      /* .benefit-icon {font-size: 5.5rem;} */ /* 削除済み */
  
      .simulation-summary-grid { flex-direction: column; text-align: center;}
      .simulation-summary-product img { max-height: 200px;}
  
      /* .simulation-grid { grid-template-columns: 1fr; } */ /* 旧シミュレーションは削除済み */
      /* .simulation-card h4 { min-height: auto; } */ /* 旧シミュレーションは削除済み */
  
      .faq-summary-item h4 { font-size: 1.1rem;}
      .faq-summary-item p { font-size: 0.9rem;}
  
      .footer-content { flex-direction: column; align-items: center; text-align: center; }
      .footer-links { margin-top: 1.5rem; }
      .footer-links a { margin: 0 1rem; display: block; padding: 0.5rem 0;}
      .logos-container.footer-logos { justify-content: center; }
      .logos-container.footer-logos .header-logo.combined { max-height: 42px; max-width: 250px; }
  
  
      .subpage-header .container {
          flex-direction: column;
          gap: 0.5rem;
      }
      .subpage-nav {
          width: 100%;
          text-align: center;
          margin-top: 0.5rem;
          flex-wrap: wrap;
          justify-content: center;
      }
      .subpage-nav a {
          margin: 0.3rem 0.5rem;
      }
      .subpage-header .header-logo.combined { height: 38px; margin: 0 auto; max-width: 240px; }
  
  
      .subpage-main-content {
          margin: 2rem 0;
          padding: 2rem 1.5rem;
          border-radius: 0;
      }
      .subpage-title {
          font-size: 1.8rem;
          margin-bottom: 2rem;
      }
      .text-content-area h2 {
          font-size: 1.4rem;
      }
      .legal-table dt, .legal-table dd,
      .company-info-table.styled-dl dt, .company-info-table.styled-dl dd {
          width: 100%;
          float: none;
          margin-left: 0;
          padding: 0.8rem 1rem;
          border-bottom: none;
          text-align: left;
      }
      .legal-table dt,
      .company-info-table.styled-dl dt {
          border-bottom: 1px solid var(--border-color-light);
          font-weight: bold;
          padding-bottom: 0.6rem;
          margin-bottom: 0.3rem;
      }
      .legal-table dd,
      .company-info-table.styled-dl dd {
           padding-top: 0.3rem;
           padding-bottom: 1.2rem;
           border-bottom: 1px solid #f0f0f0;
      }
      .legal-table dl:last-of-type dd:last-of-type,
      .company-info-table.styled-dl dl:last-of-type dd:last-of-type {
           border-bottom: none;
      }
  
  
      .contact-info-area .lead-text {
          font-size: 1.05rem;
          margin-bottom: 2rem;
      }
      .contact-methods-grid {
          grid-template-columns: 1fr;
          gap: 1.5rem;
      }
      .contact-method-card {
          padding: 1.5rem;
      }
      .contact-method-card h3 { font-size: 1.3rem; }
      .contact-method-card h3 i { font-size: 1.5rem; }
  
      .company-info-contactpage { margin-top: 2rem; padding-top: 1.5rem;}
      .company-info-contactpage h3 { font-size: 1.3rem; }
  
      .contact-form-container h2 { font-size: 1.5rem; }
  
      .faq-question {
          font-size: 1.05rem;
          padding: 1rem 1.2rem;
      }
      /* .faq-icon は削除 */
      .expand-icon { /* display:block; を追加して、アイコン単独でもレイアウト崩れを防ぐ */
          display: block;
      }
      .faq-answer {
          padding: 1.2rem 1.5rem;
          font-size: 0.95rem;
      }
      /* features.html レスポンシブ */
      .feature-header {
          margin-bottom: 1.2rem;
      }
      /* アイコンと特徴番号を絶対配置で1行目に */
      .feature-header {
          position: relative;
          padding-top: 3.5rem;
          padding-bottom: 0.5rem;
      }
      .feature-icon {
          font-size: 1.5rem;
          position: absolute;
          top: 0.9rem;
          left: 1.2rem;
      }
      .feature-header h2 {
          font-size: 1.3rem;
          line-height: 1.5;
          margin: 0;
          padding-left: 1rem;
      }
      .feature-header .feature-number {
          font-size: 0.8em;
          padding: 0.15rem 0.5rem;
          position: absolute;
          top: 0.9rem;
          left: 3.7rem;
          display: inline-block;
      }
      /* 区切り線を追加 */
      .feature-header::before {
          content: '';
          position: absolute;
          top: 3.2rem;
          left: 1rem;
          width: 80%;
          height: 3px;
          background-color: rgba(255, 255, 255, 0.4);
      }
      /* 見出しテキストを2行目に */
      .feature-header h2 {
          padding-top: 0.5rem;
      }
      .feature-content {
          padding-left: 0;
      }
      .nvidia-info-container {
          flex-direction: column;
          align-items: center;
          text-align: center;
          padding: 1.5rem;
      }
      .nvidia-logo-area {
          flex-basis: auto;
          margin-bottom: 1rem;
      }
      .nvidia-data-area ul {
          padding-left: 0;
          list-style-position: inside;
          text-align: left;
      }
      .feature-chart-container {
          height: 300px;
      }
      .business-scheme-image img,
      .feature-image {
          margin-top: 1rem;
          max-width: 100%;
          max-height: 280px;
      }
      .klab-logo-area img.company-logo { /* KLabロゴはfeatures.htmlから削除済み */
          /* max-height: 40px; */
          /* max-width: 150px; */
      }
      .image-comparison-container {
          flex-direction: column;
          gap: 1rem;
      }
      .landscape-comparison-image {
          max-height: 180px;
      }
      .pie-chart-arrow {
          display: block;
          transform: rotate(90deg);
          margin: 0.5rem 0;
      }
      .pie-chart-wrapper {
          max-width: 100%;
          margin: 0.5rem 0;
      }
      /* company-profile.html レスポンシブ */
      .company-identity, .company-identity-alt {
          flex-direction: column;
          align-items: center;
          text-align: center;
          gap: 0.8rem;
      }
      .company-logo-image, .company-logo-image-alt { max-height: 50px; max-width: 180px; }
      .company-name-large { font-size: 1.6rem; }
      .company-role, .company-role-page { font-size: 1rem; }
      .representative-profile, .representative-profile-detailed { flex-direction: column; align-items: center; text-align: center; padding: 1.5rem; }
      .representative-photo, .representative-photo-detailed { flex-basis: auto; margin-bottom: 1.5rem; width: 60%; max-width: 150px; }
      .representative-photo img, .representative-photo-detailed img { max-height: none; object-fit: contain; }
      .representative-info, .representative-info-detailed { min-width: auto; text-align: left; }
      .representative-title, .representative-title-detailed { font-size: 1.4rem; text-align: center; }
      .investor-list, .investor-list-detailed { columns: 1; -webkit-columns: 1; -moz-columns: 1; }
      .investor-logos-grid { grid-template-columns: repeat(auto-fit, minmax(80px, 1fr)); gap: 1rem;}
  
  
  }
  
  
  @media (max-width: 480px) {
      html { font-size: 13px; }
      .section-title { font-size: 1.7rem; }
      .hero-section h1 { font-size: 1.7rem; }
      .hero-subtitle { font-size: 0.95rem; }
      .btn { padding: 0.7rem 1.6rem; font-size: 0.85rem;}
      .btn-large { padding: 0.9rem 2.2rem; font-size: 0.95rem;}
      .problem-list li { 
          font-size: 0.95rem; 
          padding: 0.9rem 1.1rem;
          flex-wrap: wrap;
          align-items: flex-start;
      }
      
      .problem-list li strong {
          display: inline;
          white-space: normal;
      }
      .problem-icon { font-size: 1.4rem; margin-right: 0.7rem;}
  
      .problem-section .section-title {
          font-size: 1.7rem;
          white-space: nowrap;
          overflow: hidden;
          text-overflow: ellipsis;
      }
  
      .solution-graph-chart-container { height: 250px; }
      .feature-chart-container { height: 250px; }
  
      .hero-text-container { padding: 1.2rem; }
  
      .keypoint-card h3 {font-size: 1.3rem;}
      .keypoint-card p {font-size: 0.85rem;}
      /* .benefit-text h3 {font-size: 1.3rem;} */
      /* .chart-container { height: 220px;} */
      .simulation-card .simulation-value { font-size: 1.7rem; }
      .simulation-card.simulation-card-total .simulation-value { font-size: 1.9rem; }
      /* .cta-phone .phone-number は .contact-methods-inline で指定 */
  
      /* features.html レスポンシブ */
      .feature-header h2 { font-size: 1.5rem; }
      .feature-icon { font-size: 2.2rem; }
      .nvidia-data-area h3 { font-size: 1.3rem; }
      .landscape-comparison-image {
          max-height: 150px;
      }
      .chart-caption { font-size: 0.8rem; }
      .pie-chart-wrapper {
          max-width: 200px;
      }
      /* company-profile.html レスポンシブ */
      .company-logo-image, .company-logo-image-alt { max-height: 45px; max-width: 160px; }
      .company-name-large { font-size: 1.5rem; }
      .representative-title, .representative-title-detailed { font-size: 1.3rem;}
      .representative-history li, .representative-history-detailed li { font-size: 0.85rem;}
      .investors-section h4, .investors-section-detailed h4 { font-size: 1.3rem;}
      .investor-logos-grid img { max-height: 30px;}
  
  
  }
  
  /* AOS.js 用の基本的なスタイル */
  [data-aos] {
    opacity: 0;
    transition-property: transform, opacity;
  }

  /* トップへ戻るボタン */
  .back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--main-color-blue);
    color: var(--white);
    border: none;
    border-radius: 50%;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  }
  
  .back-to-top:hover {
    background-color: var(--main-color-blue-darker);
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
  }
  
  .back-to-top.show {
    opacity: 1;
    visibility: visible;
  }
  
  /* スマホ対応 */
  @media (max-width: 768px) {
    .back-to-top {
      bottom: 20px;
      right: 20px;
      width: 45px;
      height: 45px;
      font-size: 1rem;
    }
  }
  
  /* formrun embed style */
  .formrun-embed {
    margin: 1rem 0;
    min-height: 400px;
  }
  
  /* Contact form embed */
  .contact-form-embed {
    background: var(--white);
    border-radius: 16px;
    padding: 0;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  }
  
  .contact-form-embed iframe {
    margin: 0;
    display: block;
  }