:root {
      /* Color Palette - Professional Blue Scheme */
      --color-primary: #0A2342;
      --color-primary-light: #1a3a5c;
      --color-secondary: #0095C9;
      --color-accent: #0095C9;
      --color-accent-hover: #00A3DB;

      --color-bg-dark: #0A2342;
      --color-bg-darker: #061528;
      --color-bg-light: #FFFFFF;
      --color-bg-muted: #F5F5F7;
      --color-bg-card: #FFFFFF;

      --color-text-primary: #1d1d1f;
      --color-text-secondary: #6e6e73;
      /* Brand Colors (Monochrome) */
      --primary-color: #050505;
      /* Black */
      --secondary-color: #f5f5f5;
      /* Light Gray */
      --accent-color: #ffffff;
      /* White */
      --text-primary: #050505;
      --text-secondary: #4b5563;
      /* Gray */
      --text-muted: #9ca3af;
      --bg-dark: #050505;
      --bg-light: #ffffff;
      --bg-card: #f5f5f5;

      /* Gradients (Flat or Monochrome) */
      --gradient-primary: #050505;
      --gradient-accent: #ffffff;

      /* Legacy compatibility mappings for monochrome */
      --color-primary: var(--primary-color);
      --color-primary-light: var(--secondary-color);
      --color-secondary: var(--secondary-color);
      --color-accent: var(--primary-color);
      --color-accent-hover: #333333;
      --color-bg-dark: var(--bg-dark);
      --color-bg-darker: #000000;
      --color-bg-light: var(--bg-light);
      --color-bg-muted: var(--bg-card);
      --color-bg-card: var(--bg-light);
      --color-text-primary: var(--text-primary);
      --color-text-secondary: var(--text-secondary);
      --color-text-muted: var(--text-muted);
      --color-text-inverse: #ffffff;
      --color-text-inverse-muted: rgba(255, 255, 255, 0.7);
      --color-accent-light: rgba(0, 0, 0, 0.05);
      --color-accent-glow: transparent;
      --color-secondary-light: rgba(0, 0, 0, 0.05);
      --color-border: rgba(0, 0, 0, 0.1);
      --color-border-dark: rgba(255, 255, 255, 0.1);
      --gradient-hero: var(--bg-light);
      --gradient-dark: var(--bg-dark);

      /* Typography */
      --font-display: "Rustica", "Noto Sans JP", system-ui, -apple-system, "Hiragino Sans", "Yu Gothic", Meiryo, sans-serif;
      --font-body: "Rustica", "Noto Sans JP", system-ui, -apple-system, "Hiragino Sans", "Yu Gothic", Meiryo, sans-serif;
      --font-number: 'Outfit', sans-serif;
      /* 数字・一部英語用 */

      /* Spacing */
      --space-xs: 8px;
      --space-sm: 16px;
      --space-md: 24px;
      --space-lg: 48px;
      --space-xl: 80px;
      --space-2xl: 120px;
      --space-3xl: 160px;

      /* Radius */
      --radius-sm: 4px;
      --radius-md: 8px;
      --radius-lg: 16px;
      --radius-xl: 24px;

      /* Transitions */
      --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
      --transition-fast: 0.2s var(--ease-out-expo);
      --transition-smooth: 0.5s var(--ease-out-expo);
      --transition-slow: 0.8s var(--ease-out-expo);
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      font-family: var(--font-body);
      color: var(--text-primary);
      background-color: var(--bg-light);
      line-height: 1.8;
      font-weight: 400;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

    /* ===== Utility Classes ===== */
    .container {
      max-width: 1400px;
      margin: 0 auto;
      padding: 0 var(--space-lg);
    }

    .icon {
      width: 24px;
      height: 24px;
      flex-shrink: 0;
    }

    .icon-lg {
      width: 32px;
      height: 32px;
    }

    .icon-xl {
      width: 48px;
      height: 48px;
    }

    /* ===== Navigation ===== */
    .nav {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 10000;
      padding: var(--space-sm) var(--space-lg);
      background: transparent;
      backdrop-filter: none;
      -webkit-backdrop-filter: none;
      border-bottom: 1px solid transparent;
      transition: background 0.4s ease, backdrop-filter 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
    }

    .nav.scrolled {
      background: #050505;
      backdrop-filter: blur(10px);
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .nav-inner {
      max-width: 1400px;
      margin: 0 auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .logo {
      display: flex;
      align-items: center;
      gap: var(--space-sm);
      text-decoration: none;
      color: #ffffff;
      z-index: 1001;
      transition: color 0.4s ease;
    }

    .nav.scrolled .logo {
      color: #ffffff;
    }

    .logo-img {
      height: 48px;
      width: auto;
      object-fit: contain;
      transition: transform 0.4s ease;
    }

    .nav.scrolled .logo-img {
      /* スクロール後もフィルタなし（意図的に空にしていますがLint回避のためコメント化するかプロパティを入れます） */
      filter: none;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: var(--space-lg);
      list-style: none;
    }

    .nav-links a {
      font-size: 0.875rem;
      font-weight: 500;
      color: rgba(255, 255, 255, 0.85);
      text-decoration: none;
      transition: color 0.4s ease;
      position: relative;
    }

    .nav.scrolled .nav-links a {
      color: rgba(255, 255, 255, 0.8);
    }

    .nav.scrolled .nav-links a:hover {
      color: #ffffff;
    }

    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 0;
      height: 1px;
      background: var(--color-accent);
      transition: var(--transition-fast);
    }

    .nav-links a:hover {
      color: #ffffff;
    }

    .nav-links a:hover::after {
      width: 100%;
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: var(--space-md);
      z-index: 1001;
    }

    /* ハンバーガーボタン */
    .nav-toggle {
      display: none;
      /* デスクトップでは非表示 */
      background: none;
      border: none;
      cursor: pointer;
      width: 40px;
      height: 40px;
      position: relative;
      padding: 0;
    }

    .hamburger {
      display: block;
      width: 24px;
      height: 2px;
      background: #ffffff;
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      transition: background 0.4s ease;
    }

    .nav.scrolled .hamburger {
      background: #ffffff;
    }

    .hamburger::before,
    .hamburger::after {
      content: '';
      display: block;
      width: 24px;
      height: 2px;
      background: #ffffff;
      position: absolute;
      left: 0;
      transition: transform 0.3s, background 0.4s ease;
    }

    .nav.scrolled .hamburger::before,
    .nav.scrolled .hamburger::after {
      background: #ffffff;
    }

    .hamburger::before {
      top: -8px;
    }

    .hamburger::after {
      top: 8px;
    }

    /* メニュー開閉時のアニメーション */
    .nav.active .hamburger {
      background: transparent;
    }

    .nav.active .hamburger::before {
      transform: translateY(8px) rotate(45deg);
    }

    .nav.active .hamburger::after {
      transform: translateY(-8px) rotate(-45deg);
    }

    /* 言語プルダウン（共通スタイル） */
    .lang-switcher {
      position: relative;
    }

    .lang-dropdown-toggle {
      display: flex;
      align-items: center;
      gap: 6px;
      background: rgba(255, 255, 255, 0.1);
      border: 1px solid rgba(255, 255, 255, 0.3);
      padding: 6px 12px;
      border-radius: 99px;
      font-size: 0.75rem;
      font-weight: 600;
      color: #ffffff;
      cursor: pointer;
      transition: background 0.4s ease, border-color 0.4s ease, color 0.4s ease;
    }

    .nav.scrolled .lang-dropdown-toggle {
      background: var(--secondary-color);
      border: 1px solid rgba(0, 0, 0, 0.1);
      color: var(--text-primary);
    }

    .lang-dropdown-toggle:hover {
      background: rgba(0, 0, 0, 0.1);
    }

    .lang-dropdown-menu {
      position: absolute;
      top: calc(100% + 8px);
      right: 0;
      background: white;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
      padding: 8px 0;
      min-width: 120px;
      opacity: 0;
      visibility: hidden;
      transform: translateY(10px);
      transition: var(--transition-smooth);
      z-index: 1002;
    }

    .lang-dropdown-menu.active {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }

    .lang-dropdown-item {
      display: block;
      width: 100%;
      padding: 8px 16px;
      text-align: left;
      border: none;
      background: none;
      font-size: 0.8rem;
      color: var(--color-text-secondary);
      cursor: pointer;
      transition: var(--transition-fast);
    }

    .lang-dropdown-item:hover {
      background: var(--color-bg-muted);
      color: var(--color-text-primary);
    }

    .lang-dropdown-item.active {
      color: var(--color-accent);
      font-weight: 700;
    }

    /* レスポンシブ - タブレット・モバイル */
    @media (max-width: 1024px) {
      .nav {
        padding: var(--space-sm) var(--space-md);
      }

      .nav-toggle {
        display: block;
      }

      .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background: white;
        flex-direction: column;
        justify-content: center;
        gap: var(--space-xl);
        padding: var(--space-2xl) var(--space-lg);
        transition: right 0.5s var(--ease-out-expo);
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.1);
        z-index: 1000;
      }

      .nav.active .nav-links {
        right: 0;
      }

      .nav-links a {
        font-size: 1.25rem;
      }
    }

    /* -----------------------------------
     * Hero Section
     * ----------------------------------- */
    .hero {
      position: relative;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      justify-content: center;
      background: var(--bg-dark);
      /* 黒背景 */
      overflow: hidden;
      padding: 120px 0 0;
    }

    #hero-canvas-container {
      position: absolute;
      inset: 0;
      z-index: 0;
      opacity: 1;
      pointer-events: none;
      /* プレーンなグレー/黒基調のスキャンライン効果 */
      background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%), linear-gradient(90deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.02));
      background-size: 100% 4px, 3px 100%;
    }

    .hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
      opacity: 0.03;
      pointer-events: none;
    }

    /* 背景の装飾は削除・あるいは非表示にしてフラットに */
    .hero-glow,
    .hero-glow-secondary,
    .hero-grid-pattern {
      display: none;
    }

    @keyframes pulse {

      0%,
      100% {
        opacity: 0.6;
        transform: scale(1);
      }

      50% {
        opacity: 1;
        transform: scale(1.1);
      }
    }

    .hero-main {
      position: relative;
      z-index: 2;
      flex: 1;
      display: flex;
      align-items: center;
    }

    .hero-content {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: 1.1fr 1fr;
      gap: 60px;
      align-items: center;
      width: 100%;
    }

    .hero-text {
      max-width: 680px;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      background: rgba(255, 255, 255, 0.1);
      border: 1px solid rgba(255, 255, 255, 0.2);
      padding: 7px 20px;
      border-radius: 980px;
      font-size: 0.8rem;
      font-weight: 600;
      letter-spacing: 0.03em;
      margin-bottom: 20px;
      animation: fadeUp 0.8s var(--ease-out-expo) forwards;
      opacity: 0;
      position: relative;
      overflow: hidden;
      color: #fff;
    }

    .hero-badge::before {
      content: '';
      position: absolute;
      top: 0;
      left: -100%;
      width: 100%;
      height: 100%;
      background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
      animation: badgeShine 3s ease-in-out infinite;
    }

    @keyframes badgeShine {

      0%,
      100% {
        left: -100%;
      }

      50% {
        left: 100%;
      }
    }

    .hero-badge-dot {
      width: 8px;
      height: 8px;
      background: var(--color-accent);
      border-radius: 50%;
      box-shadow: 0 0 10px var(--color-accent);
      animation: badgePulse 2s ease-in-out infinite;
    }

    @keyframes badgePulse {

      0%,
      100% {
        opacity: 1;
      }

      50% {
        opacity: 0.5;
      }
    }

    .hero-title {
      font-family: var(--font-display);
      font-size: clamp(2.4rem, 5vw, 4rem);
      font-weight: 800;
      line-height: 1.2;
      letter-spacing: -0.02em;
      margin-bottom: var(--space-md);
      animation: fadeUp 0.8s var(--ease-out-expo) 0.1s forwards;
      opacity: 0;
    }

    .hero-title-accent {
      background: linear-gradient(135deg, #ffffff 0%, #cccccc 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .hero-lead {
      font-size: 1rem;
      color: rgba(255, 255, 255, 0.7);
      line-height: 2;
      margin-bottom: var(--space-lg);
      animation: fadeUp 0.8s var(--ease-out-expo) 0.2s forwards;
      opacity: 0;
    }

    .hero-actions {
      display: flex;
      gap: var(--space-sm);
      flex-wrap: wrap;
      animation: fadeUp 0.8s var(--ease-out-expo) 0.3s forwards;
      opacity: 0;
    }

    /* Button Base */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 50px;
      border-radius: var(--radius-sm);
      /* フラットな印象にするため少し角丸を小さく設定してもよいが、ここは既存維持 */
      font-family: var(--font-number);
      font-weight: 600;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      text-decoration: none;
      transition: all var(--transition-smooth);
      cursor: pointer;
      position: relative;
      overflow: hidden;
      border: 1px solid transparent;
      white-space: nowrap;
    }

    .btn .icon {
      width: 18px;
      height: 18px;
      transition: var(--transition-fast);
    }

    .btn-primary {
      background: var(--primary-color);
      color: #ffffff;
      border: 1px solid rgba(255, 255, 255, 0.2);
    }

    .btn-primary:hover {
      transform: translateY(-3px);
      box-shadow: 0 16px 40px var(--color-accent-glow);
    }

    .btn-primary:hover::before {
      opacity: 1;
    }

    .btn-primary span,
    .btn-primary .icon {
      position: relative;
      z-index: 1;
    }

    .btn-primary:hover .icon {
      transform: translateX(4px);
    }

    .btn-ghost {
      background: rgba(255, 255, 255, 0.05);
      color: #ffffff;
      border: 1px solid rgba(255, 255, 255, 0.2);
      backdrop-filter: blur(8px);
    }

    .btn-ghost:hover {
      background: rgba(255, 255, 255, 0.15);
      border-color: #ffffff;
      transform: translateY(-2px);
    }

    /* Hero Visual */
    .hero-visual {
      position: relative;
      animation: fadeUp 0.8s var(--ease-out-expo) 0.4s forwards;
      opacity: 0;
      perspective: 1200px;
    }

    .hero-visual::before {
      content: '';
      position: absolute;
      inset: -20px;
      background: linear-gradient(135deg, rgba(185, 81, 199, 0.15) 0%, rgba(0, 181, 226, 0.1) 100%);
      border-radius: 24px;
      z-index: -1;
    }

    .hero-visual::after {
      content: '';
      position: absolute;
      inset: 0;
      border: 2px solid rgba(255, 255, 255, 0.1);
      border-radius: 16px;
      pointer-events: none;
      z-index: 2;
    }

    .hero-image-placeholder {
      width: 100%;
      aspect-ratio: 4 / 3;
      background: linear-gradient(135deg, rgba(0, 0, 0, 0.02) 0%, rgba(0, 0, 0, 0.01) 100%);
      border: 2px dashed rgba(0, 0, 0, 0.1);
      border-radius: var(--radius-lg);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: var(--space-sm);
      color: var(--color-text-muted);
    }

    .hero-image-placeholder .icon {
      width: 48px;
      height: 48px;
      opacity: 0.5;
    }

    .hero-image-placeholder span {
      font-size: 0.85rem;
      font-weight: 500;
    }

    .hero-image {
      width: 100%;
      aspect-ratio: 4 / 3;
      border-radius: 16px;
      object-fit: cover;
      display: block;
      box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4),
        0 0 40px rgba(185, 81, 199, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
      position: relative;
      z-index: 1;
      filter: contrast(1.08) brightness(1.03) saturate(1.1);
    }

    /* Hero Stats */
    .hero-stats {
      position: relative;
      z-index: 1;
      padding: 0;
    }

    .hero-stats-inner {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: var(--space-lg);
      padding: var(--space-lg) var(--space-xl);
      background: none;
      border: none;
      border-radius: var(--radius-lg);
      box-shadow: none;
      backdrop-filter: none;
    }

    .stat-item {
      text-align: center;
      padding: var(--space-md) 0;
      position: relative;
    }

    .stat-item:not(:last-child)::after {
      content: '';
      position: absolute;
      right: calc(var(--space-xl) * -0.5);
      top: 50%;
      transform: translateY(-50%);
      width: 1px;
      height: 60%;
      height: 60%;
      background: linear-gradient(180deg, transparent 0%, rgba(255, 255, 255, 0.1) 50%, transparent 100%);
    }

    .stat-value {
      font-family: var(--font-number);
      font-size: clamp(3rem, 5vw, 4.5rem);
      font-weight: 800;
      color: #ffffff;
      line-height: 1;
      margin-bottom: var(--space-sm);
      letter-spacing: -0.03em;
    }

    .stat-value span {
      font-size: 0.5em;
      color: rgba(255, 255, 255, 0.7);
      font-weight: 700;
      vertical-align: baseline;
      margin-left: 2px;
    }

    .stat-label {
      font-size: 0.7rem;
      color: rgba(255, 255, 255, 0.6);
      font-weight: 500;
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }

    /* ===== Section Common ===== */
    .section {
      padding: var(--space-3xl) 0;
      position: relative;
    }

    .section-header {
      max-width: 720px;
      margin-bottom: var(--space-xl);
    }

    .section-header.center {
      text-align: center;
      margin-left: auto;
      margin-right: auto;
    }

    .section-label {
      display: inline-flex;
      align-items: center;
      gap: var(--space-xs);
      font-size: 0.7rem;
      font-weight: 700;
      color: var(--color-secondary);
      text-transform: uppercase;
      letter-spacing: 0.2em;
      margin-bottom: var(--space-sm);
      font-family: var(--font-display);
    }

    .section-label .icon {
      width: 16px;
      height: 16px;
    }

    .section-title {
      font-family: var(--font-display);
      font-size: clamp(2rem, 4vw, 3rem);
      font-weight: 700;
      line-height: 1.15;
      letter-spacing: -0.02em;
      margin-bottom: var(--space-sm);
      color: var(--color-text-primary);
    }

    .section-desc {
      font-size: 1rem;
      color: var(--color-text-secondary);
      line-height: 1.9;
    }

    /* ===== Services Section ===== */
    .services {
      background: var(--bg-dark);
      position: relative;
      color: #ffffff;
      overflow: hidden;
    }

    .services-bg {
      position: absolute !important;
      inset: 0;
      background-image: url('img/shibuya_bg.webp');
      background-size: cover;
      background-position: center;
      background-repeat: no-repeat;
      filter: grayscale(100%);
      z-index: 1;
    }

    .services::before {
      content: '';
      position: absolute;
      inset: 0;
      background: rgba(5, 5, 5, 0.85);
      /* ダークなフラットオーバーレイ */
      z-index: 2;
    }

    .services .container {
      position: relative;
      z-index: 3;
    }

    .services .section-title {
      color: #ffffff;
    }

    .services .section-desc {
      color: rgba(255, 255, 255, 0.7);
    }

    .services .section-label {
      color: var(--color-secondary);
    }

    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: var(--space-lg);
    }

    .service-card {
      background: transparent;
      border-radius: 0;
      padding: var(--space-lg) 0;
      border: none;
      border-bottom: 1px solid rgba(255, 255, 255, 0.2);
      transition: var(--transition-smooth);
      position: relative;
    }

    .service-card:hover {
      transform: none;
      background: transparent;
      border-color: #ffffff;
    }

    .service-icon-wrap {
      width: 200px;
      height: 200px;
      margin: 0 auto 0 auto;
      transition: var(--transition-smooth);
    }

    .service-illustration {
      width: 100%;
      height: 100%;
      object-fit: contain;
    }

    .service-card:hover .service-icon-wrap {
      transform: scale(1.05);
    }

    .service-card--link {
      text-decoration: none;
      color: inherit;
      display: block;
      cursor: pointer;
    }

    .service-card--link:hover {
      transform: translateY(-4px);
      background: rgba(255, 255, 255, 0.03);
    }

    .service-link-label {
      display: inline-block;
      margin-top: 16px;
      padding: 8px 20px;
      font-size: 13px;
      letter-spacing: 0.06em;
      color: #ffffff;
      border: 1px solid rgba(255, 255, 255, 0.4);
      border-radius: 2px;
      transition: background 0.3s, border-color 0.3s;
    }

    .service-card--link:hover .service-link-label {
      background: #ffffff;
      color: #000000;
      border-color: #ffffff;
    }

    .service-header {
      display: block;
    }

    .service-badge {
      display: inline-block;
      font-size: 0.65rem;
      font-weight: 700;
      color: #ffffff;
      background: transparent;
      border: 1px solid rgba(255, 255, 255, 0.5);
      padding: 5px 12px;
      border-radius: 0;
      margin-bottom: var(--space-sm);
      text-transform: uppercase;
      letter-spacing: 0.08em;
      font-family: var(--font-display);
    }

    .service-title {
      font-family: var(--font-display);
      font-size: 1.4rem;
      font-weight: 700;
      margin-bottom: var(--space-xs);
      color: #ffffff;
    }

    @media (min-width: 1025px) {
      .service-title {
        margin-top: 20px;
      }
    }

    .service-desc {
      font-size: 0.9rem;
      color: rgba(255, 255, 255, 0.7);
      line-height: 1.85;
    }

    /* ===== Bit Valley Section ===== */
    .bitvalley {
      background: var(--color-bg-muted);
      color: var(--color-text-primary);
      position: relative;
      overflow: hidden;
    }

    .bitvalley::before {
      content: '';
      position: absolute;
      inset: 0;
      background: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
      opacity: 0.03;
      pointer-events: none;
    }

    .bitvalley .section-label {
      color: var(--color-secondary);
    }

    .bitvalley .section-title {
      color: var(--color-text-inverse);
      font-size: clamp(2.2rem, 4.5vw, 3.2rem);
    }

    .bitvalley .section-desc {
      color: var(--color-text-inverse-muted);
    }

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

    .bitvalley-intro {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: var(--space-xl);
      align-items: center;
      margin-bottom: var(--space-xl);
    }

    .bitvalley-visual {
      position: relative;
    }

    .bitvalley-badge {
      display: inline-flex;
      align-items: center;
      gap: var(--space-xs);
      background: transparent;
      border: 1px solid rgba(0, 0, 0, 0.5);
      padding: 8px 16px;
      border-radius: 0;
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--primary-color);
      margin-bottom: var(--space-md);
      font-family: var(--font-display);
      letter-spacing: 0.05em;
    }

    .bitvalley-lead {
      font-size: 1.1rem;
      line-height: 2;
      color: var(--color-text-inverse-muted);
      margin-bottom: var(--space-lg);
    }

    .bitvalley-quote {
      background: rgba(255, 255, 255, 0.06);
      border-left: 3px solid var(--color-accent);
      padding: var(--space-md) var(--space-lg);
      border-radius: 0 var(--radius-md) var(--radius-md) 0;
      font-style: italic;
      color: var(--color-text-primary);
      line-height: 1.8;
      backdrop-filter: blur(8px);
    }

    .bitvalley-quote-author {
      margin-top: var(--space-sm);
      font-style: normal;
      font-size: 0.85rem;
      color: var(--color-secondary);
      font-weight: 600;
    }

    .pillars-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: var(--space-md);
    }

    .pillar-card {
      background: transparent;
      border: 1px solid rgba(0, 0, 0, 0.1);
      border-radius: 0;
      padding: var(--space-lg);
      text-align: center;
      transition: var(--transition-smooth);
      position: relative;
      overflow: hidden;
    }

    .pillar-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: var(--primary-color);
      opacity: 0;
      transition: var(--transition-smooth);
    }

    .pillar-card:hover {
      background: rgba(0, 0, 0, 0.02);
      transform: none;
      border-color: var(--primary-color);
    }

    .pillar-card:hover::before {
      opacity: 1;
    }

    .pillar-number {
      font-family: var(--font-display);
      font-size: 2.5rem;
      font-weight: 800;
      color: var(--primary-color);
      line-height: 1;
      margin-bottom: var(--space-sm);
    }

    .pillar-title {
      font-family: var(--font-display);
      font-size: 1rem;
      font-weight: 700;
      color: var(--color-text-primary);
      margin-bottom: var(--space-xs);
      line-height: 1.4;
    }

    .pillar-desc {
      font-size: 0.8rem;
      color: var(--color-text-secondary);
      line-height: 1.7;
    }

    .bitvalley-diagram {
      width: 100%;
      aspect-ratio: 16 / 10;
      background: rgba(255, 255, 255, 0.04);
      border: 2px dashed rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-lg);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: var(--space-sm);
      color: var(--color-text-inverse-muted);
    }

    .bitvalley-diagram .icon {
      width: 48px;
      height: 48px;
      opacity: 0.5;
    }

    .bitvalley-diagram span {
      font-size: 0.85rem;
      font-weight: 500;
    }

    @media (max-width: 1200px) {
      .pillars-grid {
        grid-template-columns: repeat(3, 1fr);
      }
    }

    @media (max-width: 1024px) {
      .bitvalley-intro {
        grid-template-columns: 1fr;
        text-align: center;
      }

      .bitvalley-visual {
        order: -1;
        max-width: 500px;
        margin: 0 auto;
      }
    }

    @media (max-width: 768px) {
      .pillars-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 480px) {
      .pillars-grid {
        grid-template-columns: 1fr;
      }
    }

    /* ===== Clients Section ===== */
    .clients {
      background: var(--color-bg-light);
    }

    .clients-intro {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: var(--space-xl);
      align-items: center;
      margin-bottom: var(--space-xl);
    }

    .clients-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: var(--space-lg);
    }

    @media (max-width: 1024px) {
      .clients-grid {
        grid-template-columns: repeat(3, 1fr);
      }
    }

    @media (max-width: 640px) {
      .clients-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    .client-logo-placeholder {
      background: var(--color-bg-muted);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: var(--space-md);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: var(--space-xs);
      min-height: 120px;
      transition: var(--transition-fast);
    }

    .client-logo-placeholder:hover {
      border-color: var(--color-accent);
      background: var(--color-bg-card);
    }

    .client-logo-placeholder .icon {
      width: 32px;
      height: 32px;
      color: var(--color-text-muted);
      opacity: 0.5;
    }

    .client-logo-placeholder span {
      font-size: 0.75rem;
      color: var(--color-text-muted);
      text-align: center;
      font-weight: 500;
    }

    .client-logo-item {
      display: flex;
      align-items: center;
      justify-content: center;
      padding: var(--space-md);
      background: var(--color-bg-card);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      transition: var(--transition-fast);
      min-height: 140px;
    }

    .client-logo-item:hover {
      border-color: var(--color-accent);
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    }

    .client-logo-img {
      max-width: 100%;
      max-height: 120px;
      object-fit: contain;
      opacity: 0.8;
      transition: var(--transition-fast);
    }

    .client-logo-item:hover .client-logo-img {
      opacity: 1;
    }

    /* ===== Global Partnerships Section ===== */
    .partnerships {
      background: #ffffff;
      color: var(--color-text-primary);
      position: relative;
      overflow: hidden;
    }

    .partnerships::before {
      display: none;
    }

    .partnerships::after {
      display: none;
    }

    .partnerships .section-label {
      color: var(--color-secondary);
    }

    .partnerships .section-title {
      color: var(--color-text-primary);
    }

    .partnerships .section-desc {
      color: var(--color-text-secondary);
    }

    .partnership-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: var(--space-lg);
      position: relative;
      z-index: 1;
    }

    .partnership-card {
      background: transparent;
      border: 1px solid rgba(0, 0, 0, 0.1);
      border-radius: 0;
      padding: var(--space-lg);
      transition: var(--transition-smooth);
      display: flex;
      align-items: center;
      gap: var(--space-lg);
    }

    .partnership-card:hover {
      background: rgba(0, 0, 0, 0.02);
      border-color: rgba(0, 0, 0, 0.2);
    }

    .partnership-logo-wrapper {
      flex-shrink: 0;
      width: 200px;
      height: 120px;
      background: #fff;
      border-radius: var(--radius-md);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      padding: var(--space-md);
      gap: var(--space-xs);
    }

    .partnership-name {
      font-family: var(--font-display);
      font-size: 1.5rem;
      font-weight: 700;
      color: var(--color-text-primary);
      margin: 0 0 var(--space-xs) 0;
      letter-spacing: 0.02em;
    }

    .partnership-logo {
      max-height: 80px;
      max-width: 160px;
      object-fit: contain;
    }

    .partnership-info {
      flex: 1;
    }

    .partnership-badge {
      display: inline-block;
      padding: 4px 10px;
      background: var(--color-accent);
      color: white;
      font-size: 0.7rem;
      font-weight: 600;
      border-radius: 4px;
      margin-bottom: var(--space-xs);
    }

    .partnership-title {
      font-family: var(--font-display);
      font-size: 1.5rem;
      font-weight: 700;
      color: var(--color-text-primary);
      margin-bottom: var(--space-sm);
    }

    .partnership-desc {
      color: var(--color-text-secondary);
      font-size: 0.9rem;
      line-height: 1.6;
      margin-top: var(--space-xs);
    }

    /* ===== Hackathon Section ===== */
    .hackathon {
      background: var(--color-bg-muted);
      overflow: hidden;
    }

    .hackathon-content {
      display: grid;
      grid-template-columns: 1fr;
      gap: var(--space-lg);
    }

    /* Hackathon Two Column Layout */
    .hackathon-two-column {
      display: grid;
      grid-template-columns: 1fr;
      gap: var(--space-xl);
    }

    @media (min-width: 1024px) {
      .hackathon-two-column {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-2xl);
        align-items: start;
      }
    }

    .hackathon-images-column {
      display: flex;
      flex-direction: column;
      gap: var(--space-lg);
    }

    .hackathon-sponsors-column {
      display: flex;
      flex-direction: column;
      gap: var(--space-md);
    }

    .hackathon-images {
      display: grid;
      grid-template-columns: 1fr;
      gap: var(--space-lg);
      max-width: 100%;
      margin: 0 auto;
      padding: 0 var(--space-md);
    }

    .hackathon-image {
      width: 100%;
      border-radius: var(--radius-xl);
      box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    }

    /* 左画像: 引き伸ばさずに自然表示 */
    .hackathon-image:first-child {
      height: auto;
      object-fit: contain;
    }

    /* 右画像: 左画像と同じ高さにフィット */
    .hackathon-image:last-child {
      object-fit: cover;
      height: 100%;
    }

    @media (min-width: 1024px) {
      .hackathon-images {
        grid-template-columns: 1fr 1fr;
        max-width: 1200px;
        padding: 0;
        align-items: stretch;
      }

      /* 左画像はautoで、右画像がそれに合わせる */
      .hackathon-image:first-child {
        align-self: center;
      }

      .hackathon-image:last-child {
        height: 100%;
        object-fit: cover;
      }
    }

    /* Hackathon Sponsors */
    .hackathon-sponsors {
      margin-top: var(--space-xl);
      text-align: center;
    }

    .sponsors-label {
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--color-text-muted);
      text-transform: uppercase;
      letter-spacing: 0.1em;
      margin-bottom: var(--space-md);
    }

    .sponsors-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      justify-content: center;
      align-items: center;
      gap: var(--space-lg);
      margin: 0 auto;
    }

    .sponsor-item {
      display: flex;
      align-items: center;
      justify-content: center;
      width: 180px;
      height: 72px;
      padding: 12px 20px;
      background: white;
      border-radius: var(--radius-md);
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
      transition: all 0.3s ease;
    }

    .sponsor-item:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    }

    .sponsor-logo {
      max-height: 44px;
      max-width: 150px;
      width: auto;
      height: auto;
      object-fit: contain;
      filter: grayscale(0);
      opacity: 0.9;
      transition: all 0.3s ease;
    }

    .sponsor-item:hover .sponsor-logo {
      opacity: 1;
    }

    /* ===== Ambassadors Section ===== */
    .ambassadors {
      background-color: rgb(245 245 245 / 1);
    }

    .ambassador-grid {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: var(--space-md);
      position: relative;
      z-index: 1;
    }

    .ambassador-card {
      background: #ffffff;
      border: 1px solid rgba(0, 0, 0, 0.08);
      border-radius: var(--radius-md);
      padding: var(--space-md);
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: var(--space-sm);
      text-align: center;
      transition: var(--transition-smooth);
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
    }

    .ambassador-card:hover {
      background: #ffffff;
      border-color: rgba(0, 0, 0, 0.15);
      transform: translateY(-4px);
      box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
    }

    .ambassador-logo-item {
      display: flex;
      align-items: center;
      justify-content: center;
      padding: var(--space-md);
      background: #ffffff;
      border: 1px solid rgba(0, 0, 0, 0.08);
      border-radius: var(--radius-md);
      transition: var(--transition-smooth);
      min-height: 150px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
    }

    .ambassador-logo-item:hover {
      background: #ffffff;
      border-color: rgba(0, 0, 0, 0.15);
      transform: translateY(-4px);
      box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
    }

    .ambassador-logo {
      max-width: 100%;
      max-height: 100px;
      object-fit: contain;
      opacity: 0.9;
      transition: var(--transition-fast);
    }

    .ambassador-logo-item:hover .ambassador-logo {
      opacity: 1;
    }

    .ambassador-logo-placeholder {
      width: 64px;
      height: 64px;
      background: #f9fafb;
      border: 1px dashed rgba(0, 0, 0, 0.15);
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      justify-content: center;
      transition: var(--transition-fast);
    }

    .ambassador-card:hover .ambassador-logo-placeholder {
      border-color: rgba(0, 0, 0, 0.3);
      background: #f3f4f6;
    }

    .ambassador-logo-placeholder .icon {
      width: 24px;
      height: 24px;
      opacity: 0.5;
      color: var(--color-text-muted);
    }

    .ambassador-name {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--color-text-primary);
      font-family: var(--font-display);
    }

    .ambassador-type {
      font-size: 0.7rem;
      color: var(--color-text-secondary);
      font-weight: 600;
      font-family: var(--font-display);
    }

    /* ===== Partners Section ===== */
    .partners {
      background: var(--color-bg-light);
      padding: var(--space-xl) 0;
    }

    .partners-inner {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: var(--space-xl);
      flex-wrap: wrap;
    }

    .partner-logo {
      height: 32px;
      opacity: 0.6;
      transition: var(--transition-fast);
      filter: grayscale(100%);
    }

    .partner-logo:hover {
      opacity: 1;
      filter: grayscale(0%);
    }

    .partner-logo-item {
      display: flex;
      align-items: center;
      justify-content: center;
      padding: var(--space-md);
      background: transparent;
      border-radius: var(--radius-md);
      transition: var(--transition-fast);
    }

    .partner-logo-item:hover {
      background: var(--color-bg-muted);
    }

    .partner-logo {
      max-width: 100%;
      max-height: 40px;
      object-fit: contain;
      opacity: 0.7;
      transition: var(--transition-fast);
    }

    .partner-logo-item:hover .partner-logo {
      opacity: 1;
    }

    /* ===== Timeline Section ===== */
    .timeline {
      background: var(--color-bg-muted);
    }

    .timeline-two-column {
      display: grid;
      grid-template-columns: 1fr;
      gap: var(--space-xl);
    }

    @media (min-width: 1024px) {
      .timeline-two-column {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-2xl);
        align-items: start;
      }
    }

    .timeline-image-column {
      position: relative;
    }

    .timeline-image {
      width: 100%;
      height: auto;
      border-radius: var(--radius-xl);
      box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
      object-fit: cover;
    }

    @media (min-width: 1024px) {
      .timeline-image {
        position: sticky;
        top: 100px;
      }
    }

    .timeline-content-column {
      display: flex;
      flex-direction: column;
      gap: var(--space-lg);
    }

    .timeline-wrapper {
      display: grid;
      grid-template-columns: 300px 1fr;
      gap: var(--space-xl);
    }

    .timeline-list {
      position: relative;
    }

    .timeline-list::before {
      content: '';
      position: absolute;
      left: 0;
      top: 0;
      bottom: 0;
      width: 2px;
      background: var(--color-border);
    }

    .timeline-item {
      position: relative;
      padding-left: var(--space-lg);
      padding-bottom: var(--space-lg);
    }

    .timeline-item:last-child {
      padding-bottom: 0;
    }

    .stats-section {
      background: #000;
      padding-bottom: 0;
    }

    .timeline-dot {
      position: absolute;
      left: -5px;
      top: 6px;
      width: 12px;
      height: 12px;
      background: var(--gradient-accent);
      border-radius: 50%;
      border: 3px solid var(--color-bg-muted);
      box-shadow: 0 0 0 3px var(--color-accent-light);
    }

    .timeline-date {
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--color-accent);
      margin-bottom: 4px;
      font-family: var(--font-display);
    }

    .timeline-title {
      font-weight: 600;
      color: var(--color-text-primary);
      margin-bottom: 4px;
    }

    .timeline-desc {
      font-size: 0.875rem;
      color: var(--color-text-secondary);
    }

    /* ===== CEO Section ===== */
    .ceo {
      background: var(--color-bg-light);
      position: relative;
      overflow: hidden;
    }

    .ceo-bg-text {
      position: absolute;
      top: 50%;
      right: -5%;
      left: auto;
      transform: translateY(-50%);
      font-family: 'Inter', 'Helvetica Neue', Arial, sans-serif;
      font-size: clamp(6rem, 15vw, 12rem);
      font-weight: 800;
      color: rgba(0, 0, 0, 0.05);
      white-space: nowrap;
      pointer-events: none;
      z-index: 0;
      letter-spacing: -0.02em;
      user-select: none;
    }

    .ceo-content {
      display: grid;
      grid-template-columns: 280px 1fr;
      gap: var(--space-xl);
      align-items: start;
    }

    .ceo-image {
      width: 280px;
      height: 350px;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
    }

    .ceo-photo {
      width: 100%;
      height: 100%;
      object-fit: cover;
      object-position: center;
      transition: var(--transition-smooth);
    }

    .ceo-image:hover .ceo-photo {
      transform: scale(1.05);
    }

    .ceo-info h3 {
      font-family: var(--font-display);
      font-size: 2rem;
      font-weight: 600;
      margin-bottom: var(--space-xs);
      color: var(--color-text-primary);
    }

    .ceo-role {
      font-size: 0.9rem;
      color: var(--color-accent);
      font-weight: 600;
      margin-bottom: var(--space-md);
    }

    .ceo-bio {
      color: var(--color-text-secondary);
      margin-bottom: var(--space-lg);
      line-height: 1.9;
    }

    .ceo-quote {
      background: var(--color-bg-muted);
      /*padding: var(--space-2xl) var(--space-xl) var(--space-xl) var(--space-2xl);*/
      border-radius: var(--radius-lg);
      border: none;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
      font-style: italic;
      color: var(--color-text-primary);
      line-height: 2.0;
      position: relative;
      overflow: hidden;
      padding: 36px 48px;
    }

    .ceo-quote::before {
      content: '“';
      font-family: var(--font-display);
      font-size: 5rem;
      color: var(--color-accent);
      opacity: 0.5;
      position: absolute;
      top: -0.5rem;
      left: 1rem;
      line-height: 1;
    }

    .ceo-quote::after {
      content: '”';
      font-family: var(--font-display);
      font-size: 12rem;
      color: var(--color-accent);
      opacity: 0.08;
      position: absolute;
      bottom: -7rem;
      right: 2rem;
      line-height: 1;
      pointer-events: none;
    }

    /* ===== Initiative Section ===== */
    .initiative {
      background: var(--color-bg-muted);
    }

    .initiative-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: var(--space-xl);
      align-items: center;
    }

    .initiative-image {
      position: relative;
      aspect-ratio: 4 / 3;
      background: linear-gradient(145deg, #e8e8ed 0%, #d2d2d7 100%);
      border-radius: var(--radius-xl);
      overflow: hidden;
    }

    .initiative-img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      object-position: center;
    }

    .initiative-badge {
      position: absolute;
      bottom: var(--space-md);
      left: var(--space-md);
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 8px 16px;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-radius: 980px;
      font-size: 0.8rem;
      font-weight: 600;
      color: var(--color-accent);
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    }

    .initiative-content {
      padding: var(--space-lg) 0;
    }

    .initiative-label {
      font-size: 0.75rem;
      font-weight: 600;
      color: #555555;
      /* ダークグレーへ変更 (元の var(--color-text-muted) から見やすく) */
      text-transform: uppercase;
      letter-spacing: 0.1em;
      margin-bottom: var(--space-sm);
    }

    /* 背景が暗い場合（またはダークテーマ時）は白に変更 */
    [data-theme="dark"] .initiative-label,
    .bg-dark .initiative-label,
    .services .initiative-label,
    .dark-section .initiative-label {
      color: #ffffff;
    }

    .initiative-title {
      font-size: clamp(2rem, 4vw, 2.75rem);
      font-weight: 700;
      line-height: 1.2;
      letter-spacing: -0.02em;
      color: var(--color-text-primary);
      margin-bottom: var(--space-md);
    }

    .initiative-desc {
      font-size: 1.0625rem;
      color: var(--color-text-secondary);
      line-height: 1.8;
      margin-bottom: var(--space-lg);
    }

    .initiative-tags {
      display: flex;
      flex-wrap: wrap;
      gap: var(--space-xs);
    }

    .initiative-tag {
      display: inline-flex;
      align-items: center;
      padding: 8px 16px;
      background: var(--color-bg-light);
      border: 1px solid var(--color-border);
      border-radius: 980px;
      font-size: 0.875rem;
      font-weight: 500;
      color: var(--color-text-primary);
      transition: var(--transition-fast);
    }

    .initiative-tag:hover {
      border-color: var(--color-accent);
      color: var(--color-accent);
    }

    @media (max-width: 900px) {
      .initiative-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
      }

      .initiative-image {
        max-width: 500px;
        margin: 0 auto;
      }
    }

    /* ===== Mission Section ===== */
    .mission {
      background: var(--color-bg-dark);
      color: var(--color-text-inverse);
      padding: var(--space-2xl) 0;
      position: relative;
      overflow: hidden;
    }

    .mission .section-label {
      color: var(--color-accent);
    }

    .mission .section-title {
      color: var(--color-text-inverse);
    }

    .mission .section-header {
      max-width: 900px;
    }

    .mission-grid {
      display: flex;
      flex-direction: column;
      gap: var(--space-xl);
      margin-top: 60px;
      max-width: 1000px;
      margin-left: auto;
      margin-right: auto;
      position: relative;
    }

    /* Connecting line */
    .mission-grid::before {
      content: '';
      position: absolute;
      left: 40px;
      /* Center of the icon box */
      top: 40px;
      bottom: 40px;
      width: 1px;
      background: linear-gradient(to bottom,
          transparent,
          var(--color-accent) 15%,
          var(--color-accent) 85%,
          transparent);
      opacity: 0.3;
    }

    .mission-list-item {
      display: flex;
      align-items: flex-start;
      gap: var(--space-xl);
      position: relative;
      z-index: 1;
      transition: var(--transition-smooth);
      padding: var(--space-md) var(--space-lg);
      border-radius: var(--radius-lg);
    }

    .mission-list-item:hover {
      background: rgba(255, 255, 255, 0.03);
    }

    .mission-icon-box {
      width: 80px;
      height: 80px;
      flex-shrink: 0;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 0;
      background: transparent;
      border: 1px solid rgba(255, 255, 255, 0.2);
      padding: var(--space-sm);
      transition: var(--transition-smooth);
    }

    .mission-list-item:hover .mission-icon-box {
      transform: none;
      border-color: #ffffff;
    }

    .mission-icon-img {
      width: 100%;
      height: 100%;
      object-fit: contain;
    }

    .mission-fa-icon {
      font-size: 2rem;
      color: #ffffff;
      transition: var(--transition-smooth);
    }

    .mission-list-item:hover .mission-fa-icon {
      color: #ffffff;
      transform: none;
    }


    .mission-content {
      flex: 1;
      padding-top: 10px;
    }

    .mission-type {
      font-family: var(--font-display);
      font-size: 0.8rem;
      font-weight: 700;
      letter-spacing: 0.3em;
      color: #ffffff;
      margin-bottom: var(--space-xs);
      text-transform: uppercase;
      display: block;
    }

    .mission-text {
      font-size: 1.4rem;
      font-weight: 600;
      line-height: 1.4;
      margin-bottom: var(--space-xs);
      color: var(--color-text-inverse);
    }

    .mission-desc-en {
      font-size: 0.9rem;
      color: var(--color-text-inverse-muted);
      line-height: 1.6;
      font-family: var(--font-display);
      opacity: 0.6;
      font-style: italic;
    }

    @media (max-width: 768px) {
      .mission-grid {
        margin-top: 0;
      }

      .mission-grid::before {
        display: none;
      }

      .mission-list-item {
        flex-direction: column;
        gap: var(--space-md);
        align-items: center;
        text-align: center;
        background: rgba(255, 255, 255, 0.03);
        /* 背景を最初から表示 */
      }

      .mission-icon-box {
        width: 60px;
        height: 60px;
        border-color: #ffffff;
        /* ボーダーを最初から強調 */
      }

      .mission-fa-icon {
        color: #fff;
        /* アイコン色を最初から白に */
      }

      .mission-text {
        font-size: 1.1rem;
      }
    }

    .mission-footer {
      margin-top: 0;
      text-align: center;
      max-width: 900px;
      margin-left: auto;
      margin-right: auto;
      padding: var(--space-lg);
      border-top: none;
      position: relative;
    }

    .mission-quote-icon {
      font-size: 1.5rem;
      color: var(--color-accent);
      opacity: 0.4;
      margin-bottom: var(--space-md);
    }

    .mission-statement-en {
      display: flex;
      flex-direction: column;
      gap: var(--space-md);
      align-items: center;
    }

    .en-main {
      font-family: var(--font-display);
      font-size: 1.2rem;
      line-height: 1.6;
      font-weight: 400;
      color: var(--color-text-inverse);
      opacity: 0.4;
      letter-spacing: 0.02em;
      max-width: 800px;
    }

    .en-tagline {
      font-family: var(--font-display);
      font-size: 2.8rem;
      font-weight: 800;
      letter-spacing: 0.05em;
      background: linear-gradient(135deg, #fff 0%, var(--color-accent) 100%);
      -webkit-background-clip: text;
      background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-top: var(--space-xs);
      text-transform: uppercase;
      filter: drop-shadow(0 0 15px rgba(0, 113, 227, 0.4));
      line-height: 1.1;
    }

    @media (max-width: 768px) {
      .en-main {
        font-size: 1rem;
      }

      .en-tagline {
        font-size: 1.4rem;
      }
    }

    /* ===== About Us Section ===== */
    .about {
      background: #fcfcfc;
      color: var(--color-text-primary);
      padding: var(--space-3xl) 0;
    }

    .about .section-label {
      color: var(--color-secondary);
    }

    .about-content {
      max-width: 900px;
      margin: 0 auto;
      background: #fff;
      border: 1px solid rgba(0, 0, 0, 0.05);
      border-radius: var(--radius-lg);
      box-shadow: 0 4px 30px rgba(0, 0, 0, 0.02);
      overflow: hidden;
    }

    .about-info-grid {
      display: flex;
      flex-direction: column;
    }

    .about-info-row {
      display: grid;
      grid-template-columns: 240px 1fr;
      border-bottom: 1px solid rgba(0, 0, 0, 0.05);
      transition: var(--transition-fast);
    }

    .about-info-row:last-child {
      border-bottom: none;
    }

    .about-info-row:hover {
      background: #fafafa;
    }

    .about-info-label {
      background: #f8f9fa;
      padding: var(--space-md) var(--space-lg);
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 700;
      color: var(--color-text-primary);
      font-size: 0.95rem;
      border-right: 1px solid rgba(0, 0, 0, 0.05);
    }

    .about-info-label i {
      color: var(--color-secondary);
      width: 20px;
      text-align: center;
      font-size: 1.1rem;
    }

    .about-info-value {
      padding: var(--space-md) var(--space-lg);
      color: var(--color-text-secondary);
      line-height: 1.7;
      font-size: 1rem;
      display: flex;
      align-items: center;
    }

    @media (max-width: 768px) {
      .about-info-row {
        grid-template-columns: 1fr;
      }

      .about-info-label {
        border-right: none;
        border-bottom: 1px solid rgba(0, 0, 0, 0.05);
        padding: var(--space-sm) var(--space-md);
      }

      .about-info-value {
        padding: var(--space-md);
      }
    }

    /* ===== Press / News Section ===== */
    .press-news {
      background: #ffffff;
      padding: 80px 0;
    }

    .press-news .section-label {
      color: var(--color-text-secondary);
    }

    .press-news .section-title {
      margin-bottom: var(--space-lg);
    }

    .press-news-list {
      max-width: 800px;
      margin: 0 auto;
    }

    .press-news-item {
      display: flex;
      align-items: center;
      gap: var(--space-md);
      padding: 1.25rem 0;
      border-bottom: 1px solid #e0e0e0;
      text-decoration: none;
      color: var(--color-text-primary);
      transition: opacity 0.2s;
    }

    .press-news-item:visited {
      color: var(--color-text-primary);
    }

    .press-news-item:first-child {
      border-top: 1px solid #e0e0e0;
    }

    .press-news-item:hover {
      opacity: 0.6;
    }

    .press-news-date {
      font-family: var(--font-display);
      font-size: 0.85rem;
      font-weight: 500;
      color: #666666;
      letter-spacing: 0.05em;
      white-space: nowrap;
      flex-shrink: 0;
    }

    .press-news-tag {
      font-family: var(--font-display);
      font-size: 0.65rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.1em;
      padding: 3px 10px;
      border: 1px solid #333333;
      color: #333333;
      white-space: nowrap;
      flex-shrink: 0;
    }

    .press-news-text {
      font-size: 0.95rem;
      line-height: 1.6;
      color: var(--color-text-primary);
      flex: 1;
    }

    .press-news-item svg {
      width: 16px;
      height: 16px;
      min-width: 16px;
      min-height: 16px;
      flex-shrink: 0;
      color: #999999;
    }

    @media (max-width: 768px) {
      .press-news-item {
        flex-wrap: wrap;
        gap: var(--space-xs) var(--space-sm);
        padding: 1rem 0;
      }

      .press-news-text {
        width: 100%;
        font-size: 0.9rem;
      }

      .press-news-item .press-news-arrow {
        display: none;
      }
    }

    /* ===== Global Media Instructors Section ===== */
    .media-instructors {
      background: linear-gradient(135deg, #0f0f1a 0%, #1a1a2e 50%, #16213e 100%);
      position: relative;
      overflow: hidden;
    }

    .media-instructors::before {
      content: '';
      position: absolute;
      inset: 0;
      background:
        radial-gradient(ellipse 80% 50% at 20% 40%, rgba(59, 130, 246, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse 60% 40% at 80% 60%, rgba(168, 85, 247, 0.06) 0%, transparent 50%);
      pointer-events: none;
    }

    .media-instructors-header {
      text-align: center;
      margin-bottom: var(--space-xl);
      position: relative;
      z-index: 1;
    }

    .media-instructors-label {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 0.75rem;
      font-weight: 600;
      color: var(--color-secondary);
      text-transform: uppercase;
      letter-spacing: 0.15em;
      margin-bottom: var(--space-sm);
    }

    .media-instructors-title {
      font-size: clamp(1.75rem, 4vw, 2.5rem);
      font-weight: 700;
      color: #fff;
      margin-bottom: var(--space-sm);
    }

    .media-instructors-subtitle {
      font-size: 1rem;
      color: rgba(255, 255, 255, 0.6);
    }

    .instructors-carousel-wrapper {
      position: relative;
      overflow: hidden;
      padding: var(--space-md) 0;
    }

    .instructors-carousel {
      display: flex;
      gap: var(--space-lg);
      animation: instructorsSlide 25s linear infinite;
      width: max-content;
    }

    .instructors-carousel:hover {
      animation-play-state: paused;
    }

    @keyframes instructorsSlide {
      0% {
        transform: translateX(0);
      }

      100% {
        transform: translateX(-50%);
      }
    }

    .instructor-card {
      flex-shrink: 0;
      width: 200px;
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-lg);
      overflow: hidden;
      transition: all 0.4s ease;
      backdrop-filter: blur(10px);
    }

    .instructor-card:hover {
      transform: translateY(-8px);
      border-color: rgba(255, 255, 255, 0.15);
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    }

    .instructor-image-wrapper {
      position: relative;
      width: 100%;
      aspect-ratio: 1 / 1;
      overflow: hidden;
    }

    .instructor-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }

    .instructor-card:hover .instructor-image {
      transform: scale(1.05);
    }

    .instructor-overlay {
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      padding: var(--space-lg) var(--space-md) var(--space-md);
      background: linear-gradient(to top, rgba(0, 0, 0, 0.9) 0%, transparent 100%);
    }

    .instructor-info {
      padding: var(--space-sm) var(--space-md);
      text-align: center;
    }

    .instructor-name {
      font-size: 0.9375rem;
      font-weight: 600;
      color: #fff;
      margin-bottom: 2px;
    }

    .instructor-role {
      font-size: 0.75rem;
      color: rgba(255, 255, 255, 0.5);
    }

    .instructor-coming-soon {
      opacity: 0.6;
    }

    .instructor-placeholder {
      width: 100%;
      height: 100%;
      display: flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
    }

    .instructor-placeholder svg {
      width: 48px;
      height: 48px;
      color: rgba(255, 255, 255, 0.25);
    }

    @media (max-width: 900px) {
      .media-instructors {
        padding: 48px 0;
      }

      .instructor-card {
        width: 180px;
      }

      .instructors-carousel {
        gap: var(--space-md);
      }
    }

    /* ===== CTA Section ===== */
    .cta {
      background: var(--gradient-dark);
      color: var(--color-text-inverse);
      position: relative;
      overflow: hidden;
    }

    .cta::before {
      content: '';
      position: absolute;
      inset: 0;
      background: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
      opacity: 0.03;
      pointer-events: none;
    }

    .cta-grid-pattern {
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
      background-size: 60px 60px;
      pointer-events: none;
    }

    .cta-content {
      position: relative;
      z-index: 1;
      max-width: 720px;
      margin: 0 auto;
      text-align: center;
    }

    .cta .section-label {
      color: var(--color-secondary);
    }

    .cta .section-title {
      color: var(--color-text-inverse);
    }

    .cta .section-desc {
      color: var(--color-text-inverse-muted);
      margin-bottom: var(--space-lg);
    }

    .cta .btn-primary {
      background: var(--color-text-inverse);
      color: var(--color-text-primary);
    }

    .cta .btn-primary::before {
      background: var(--gradient-accent);
    }

    .cta .btn-primary:hover {
      color: var(--color-text-inverse);
    }

    /* ===== Footer ===== */
    .footer {
      background: var(--color-bg-darker);
      color: var(--color-text-inverse-muted);
      padding: var(--space-xl) 0;
    }

    .footer-inner {
      display: grid;
      grid-template-columns: 1fr auto auto;
      gap: var(--space-xl);
      align-items: center;
    }

    .footer-brand {
      display: flex;
      flex-direction: column;
      gap: var(--space-sm);
      align-items: flex-start;
    }

    .footer-logo-placeholder {
      width: 160px;
      height: 44px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px dashed rgba(255, 255, 255, 0.2);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.7rem;
      color: var(--color-text-inverse-muted);
      font-weight: 500;
    }

    .footer-logo-img {
      height: 42px;
      width: auto;
      object-fit: contain;
      opacity: 1;
    }

    .footer-copy {
      font-size: 0.8rem;
    }

    .footer-links {
      display: flex;
      gap: var(--space-lg);
    }

    .footer-links a {
      color: var(--color-text-inverse-muted);
      text-decoration: none;
      font-size: 0.85rem;
      transition: var(--transition-fast);
      display: flex;
      align-items: center;
      gap: var(--space-xs);
    }

    .footer-links a .icon {
      width: 16px;
      height: 16px;
    }

    .footer-links a:hover {
      color: var(--color-text-inverse);
    }

    /* ===== Contact Form Section ===== */
    .contact-form-section {
      background: var(--color-bg-muted);
      padding: var(--space-3xl) 0;
    }

    .contact-container {
      max-width: 800px;
      margin: 0 auto;
      background: #fff;
      padding: var(--space-xl);
      border-radius: var(--radius-xl);
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.03);
      border: 1px solid rgba(0, 0, 0, 0.05);
    }

    .contact-form {
      display: flex;
      flex-direction: column;
      gap: var(--space-md);
    }

    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: var(--space-md);
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .form-label {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--color-text-primary);
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .form-label .required {
      font-size: 0.7rem;
      color: #ff4d4f;
      font-weight: 500;
    }

    .form-control {
      width: 100%;
      padding: 14px 18px;
      background: #f8f9fa;
      border: 1px solid rgba(0, 0, 0, 0.08);
      border-radius: var(--radius-md);
      font-family: var(--font-body);
      font-size: 1rem;
      color: var(--color-text-primary);
      transition: all 0.3s var(--ease-out-expo);
    }

    .form-control::placeholder {
      color: var(--color-text-muted);
      opacity: 0.6;
    }

    .form-control:focus {
      outline: none;
      background: #fff;
      border-color: var(--color-accent);
      box-shadow: 0 0 0 4px rgba(0, 113, 227, 0.1);
    }

    textarea.form-control {
      min-height: 160px;
      resize: vertical;
    }

    .form-flex-row {
      display: flex;
      gap: var(--space-md);
    }

    .form-phone-row {
      align-items: center;
      gap: var(--space-sm);
    }

    .form-separator {
      color: var(--color-text-muted);
      font-weight: 700;
      user-select: none;
    }

    .select-control {
      appearance: none;
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%236e6e73' stroke-width='2'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19.5 8.25l-7.5 7.5-7.5-7.5' /%3E%3C/svg%3E");
      background-repeat: no-repeat;
      background-position: right 18px center;
      background-size: 16px;
      padding-right: 48px;
    }

    .contact-submit-wrap {
      margin-top: var(--space-sm);
      text-align: center;
    }

    .btn-submit {
      width: 100%;
      justify-content: center;
      padding: 16px 32px;
      font-size: 1rem;
      font-weight: 700;
      letter-spacing: 0.05em;
    }

    @media (max-width: 768px) {
      .contact-container {
        padding: var(--space-lg) var(--space-md);
      }

      .form-row {
        grid-template-columns: 1fr;
      }
    }

    /* ===== Animations ===== */
    @keyframes fadeUp {
      from {
        opacity: 0;
        transform: translateY(30px);
      }

      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    .reveal {
      opacity: 0;
      transform: translateY(40px);
      transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo);
    }

    .reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }

    /* ===== Responsive ===== */
    @media (max-width: 1200px) {
      .ambassador-grid {
        grid-template-columns: repeat(3, 1fr);
      }
    }

    @media (max-width: 1024px) {
      .services-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .hero {
        padding-top: 100px;
      }

      .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
        padding-top: 25vh;
        /* テキストをさらに下にずらして地球を見せる */
      }

      .hero-text {
        max-width: 100%;
        margin: 0 auto;
        background: rgba(255, 255, 255, 0.75);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        padding: 2.5rem 1.5rem;
        border-radius: 20px;
        border: 1px solid rgba(255, 255, 255, 0.4);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);

        /* スマホ時のみ遅延フェードイン */
        opacity: 0;
        animation: fadeUp 1s var(--ease-out-expo) 0.5s forwards;
      }

      /* 子要素のデフォルトアニメーションをスマホ時は無効化（親で一括制御するため） */
      .hero-text .hero-title,
      .hero-text .hero-lead,
      .hero-text .hero-actions {
        opacity: 1;
        animation: none;
      }

      /* スマホ表示時はボタン以外の文字色を黒に上書き */
      .hero-text .hero-badge,
      .hero-text .hero-title,
      .hero-text .hero-subtitle,
      .hero-text .hero-lead {
        color: #050505 !important;
      }

      .hero-text .hero-title-accent {
        background: none;
        -webkit-text-fill-color: initial;
        color: #050505;
      }

      .hero-text .btn-ghost {
        color: #050505;
        border-color: rgba(0, 0, 0, 0.2);
        background: rgba(0, 0, 0, 0.05);
      }

      .hero-actions {
        justify-content: center;
      }

      .hero-visual {
        max-width: 100%;
        margin: 0 auto;
      }

      .hero-visual::before {
        inset: -15px;
      }

      .hero-stats-inner {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-lg);
      }

      .stat-item:nth-child(1)::after,
      .stat-item:nth-child(3)::after {
        display: block;
      }

      .stat-item:nth-child(2)::after {
        display: none;
      }

      .stat-value {
        font-size: 3.5rem;
      }

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

      .service-desc {
        color: #ffffff;
      }

      .clients-intro {
        grid-template-columns: 1fr;
      }

      .clients-grid {
        grid-template-columns: repeat(3, 1fr);
      }

      .timeline-wrapper {
        grid-template-columns: 1fr;
      }

      .ceo-content {
        grid-template-columns: 1fr;
        text-align: center;
      }

      .ceo-image {
        margin: 0 auto;
      }

      .partnership-grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
      }

      .partnership-card {
        padding: var(--space-md);
        gap: var(--space-md);
      }

      .partnership-logo-wrapper {
        width: 100px;
        height: 50px;
        padding: var(--space-xs);
      }

      .partnership-logo {
        max-height: 35px;
        max-width: 80px;
      }

      .partnership-desc {
        font-size: 0.85rem;
      }
    }

    @media (max-width: 768px) {
      /* ===========================================
         MOBILE: Refined B2B Corporate Aesthetic
         - Clean, professional spacing
         - Readable typography hierarchy
         - Elegant card treatments
         - Intentional white space
      =========================================== */

      .nav-links {
        display: none;
      }

      /* メニュー展開時のスタイル定義 */
      .nav.active .nav-links {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw;
        height: 100vh;
        background: rgba(5, 5, 5, 0.95);
        backdrop-filter: blur(15px);
        -webkit-backdrop-filter: blur(15px);
        justify-content: center;
        align-items: center;
        gap: 2rem;
        z-index: 1000;
      }

      .nav.active .nav-links a {
        font-size: 1.5rem;
        font-weight: 600;
        color: #ffffff;
      }

      /* Hamburger animation when active */
      .nav.active .hamburger {
        background: transparent;
      }

      .nav.active .hamburger::before {
        transform: rotate(45deg);
        top: 0;
        background: #ffffff;
      }

      .nav.active .hamburger::after {
        transform: rotate(-45deg);
        top: 0;
        background: #ffffff;
      }

      /* Base Spacing & Typography */
      .section {
        padding: 48px 0;
      }

      .container {
        padding: 0 20px;
      }

      .section-header {
        margin-bottom: 28px;
      }

      .section-header.center {
        text-align: center;
      }

      .section-title {
        font-size: 1.5rem;
        line-height: 1.35;
        letter-spacing: -0.02em;
      }

      .section-desc {
        font-size: 0.9rem;
        line-height: 1.7;
        color: var(--color-text-secondary);
        max-width: 100%;
      }

      .section-label {
        font-size: 0.7rem;
        padding: 5px 12px;
        margin-bottom: 12px;
      }

      /* ===== Hero Section ===== */
      .hero {
        padding-top: 90px;
        padding-bottom: 40px;
        min-height: auto;
      }

      .hero-grid {
        gap: 32px;
      }

      .hero-content {
        text-align: center;
        /* Ensure text is readable over the globe */
        position: relative;
        z-index: 2;
        padding-top: 35vh;
      }

      .hero-text {
        background: rgba(255, 255, 255, 0.75);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        padding: 24px;
        border-radius: 20px;
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.05);
        border: 1px solid rgba(255, 255, 255, 0.4);
        margin: 0 auto;
      }

      .hero-badge {
        font-size: 0.7rem;
        padding: 6px 14px;
      }

      .hero-title {
        font-size: 2.2rem;
        line-height: 1.3;
        letter-spacing: -0.02em;
      }

      .hero-subtitle {
        font-size: 0.9rem;
        line-height: 1.7;
        margin-bottom: 24px;
        opacity: 0.9;
      }

      .hero-actions {
        justify-content: center;
        gap: 12px;
        flex-wrap: wrap;
      }

      .hero-actions .btn {
        padding: 12px 24px;
        font-size: 0.85rem;
      }

      .hero-visual {
        max-width: 100%;
        margin: 0 auto;
      }

      .hero-visual::before {
        inset: -12px;
      }

      .hero-image {
        border-radius: 12px;
      }

      .hero-image-placeholder {
        padding: 40px;
        border-radius: 16px;
      }

      /* Stats */
      .hero-stats {
        padding: var(--space-md) 0;
      }

      .hero-stats-inner {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-md);
        padding: var(--space-md);
      }

      .stat-item {
        text-align: center;
        padding: var(--space-sm) 0;
      }

      .stat-item:not(:last-child)::after {
        display: none;
      }

      .stat-item:nth-child(odd):not(:nth-last-child(1))::after {
        display: block;
        right: calc(var(--space-lg) * -0.5);
      }

      .stat-value {
        font-size: 2.5rem;
      }

      .stat-label {
        font-size: 0.65rem;
      }

      /* ===== Partnership Section ===== */
      .partnerships {
        padding: 48px 0;
      }

      .partnership-grid {
        gap: 12px;
      }

      .partnership-card {
        flex-direction: column;
        text-align: center;
        padding: 20px;
        gap: 12px;
      }

      .partnership-logo-wrapper {
        width: 100px;
        height: 50px;
        margin: 0 auto;
        padding: 8px;
      }

      .partnership-logo {
        max-height: 34px;
        max-width: 80px;
      }

      .partnership-info {
        text-align: center;
      }

      .partnership-badge {
        font-size: 0.65rem;
        padding: 4px 10px;
        margin-bottom: 6px;
      }

      .partnership-desc {
        font-size: 0.8rem;
        line-height: 1.6;
        margin-top: 4px;
      }

      /* ===== Services Section ===== */
      .services {
        padding: 48px 0;
      }

      .services-grid {
        gap: 12px;
      }

      .service-card {
        padding: 16px;
      }

      .service-header {
        display: flex;
        align-items: center;
        gap: 12px;
        margin-bottom: 8px;
      }

      .service-icon-wrap {
        width: 40px;
        height: 40px;
        margin-bottom: 0;
        flex-shrink: 0;
        border-radius: 10px;
      }

      .service-icon-wrap .icon {
        width: 20px;
        height: 20px;
      }

      .service-title {
        font-size: 0.95rem;
        margin-bottom: 0;
        line-height: 1.3;
      }

      .service-desc {
        font-size: 0.8rem;
        line-height: 1.6;
        color: #ffffff;
      }

      /* ===== Initiative Section ===== */
      .initiative {
        padding: 48px 0;
      }

      .initiative-grid {
        gap: 24px;
      }

      .initiative-image {
        border-radius: 16px;
      }

      .initiative-img {
        border-radius: 16px;
      }

      .initiative-badge {
        font-size: 0.7rem;
        padding: 6px 14px;
        bottom: 12px;
        left: 12px;
      }

      .initiative-content {
        padding: 0;
      }

      .initiative-label {
        font-size: 0.7rem;
      }

      .initiative-title {
        font-size: 1.4rem;
        margin-bottom: 12px;
      }

      .initiative-desc {
        font-size: 0.85rem;
        line-height: 1.7;
      }

      .initiative-tags {
        gap: 8px;
        margin-top: 16px;
      }

      .initiative-tag {
        font-size: 0.75rem;
        padding: 6px 12px;
      }

      /* ===== Global Media Instructors Section ===== */
      .media-instructors {
        padding: 48px 0;
      }

      .media-instructors-header {
        margin-bottom: 24px;
      }

      .media-instructors-title {
        font-size: 1.4rem;
      }

      .media-instructors-subtitle {
        font-size: 0.85rem;
      }

      .instructor-card {
        width: 160px;
      }

      .instructors-carousel {
        gap: 12px;
        animation-duration: 20s;
      }

      .instructor-name {
        font-size: 0.875rem;
      }

      .instructor-role {
        font-size: 0.7rem;
      }

      .instructor-info {
        padding: 8px 12px;
      }

      .instructor-placeholder svg {
        width: 36px;
        height: 36px;
      }

      /* ===== Clients Section ===== */
      .clients {
        padding: 48px 0;
      }

      .clients-intro {
        gap: 12px;
        margin-bottom: 24px;
        flex-direction: column;
        text-align: center;
      }

      .clients-intro h3 {
        font-size: 1.1rem;
      }

      .clients-intro p {
        font-size: 0.85rem;
        line-height: 1.6;
      }

      .clients-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 8px;
      }

      .client-logo-item {
        min-height: 60px;
        padding: 10px;
        border-radius: 10px;
      }

      .client-logo-img {
        max-height: 36px;
      }

      /* ===== Ambassadors Section ===== */
      .ambassadors {
        padding: 48px 0;
      }

      .ambassador-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 8px;
      }

      .ambassador-logo-item {
        min-height: 56px;
        padding: 10px;
        border-radius: 10px;
      }

      .ambassador-logo {
        max-height: 32px;
      }

      /* ===== Hackathon Section ===== */
      .hackathon {
        padding: 48px 0;
      }

      .hackathon-image {
        border-radius: 16px;
      }

      .hackathon-sponsors {
        margin-top: 32px;
      }

      .sponsors-label {
        font-size: 0.75rem;
        margin-bottom: 16px;
      }

      .sponsors-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 8px;
        margin-top: 24px;
      }

      .sponsor-item {
        width: 100%;
        height: auto;
        min-height: 56px;
        padding: 6px 4px;
        border-radius: 8px;
        display: flex;
        align-items: center;
        justify-content: center;
      }

      .sponsor-logo {
        max-height: 28px;
        max-width: 100%;
        object-fit: contain;
      }

      /* ===== Timeline Section ===== */
      .timeline {
        padding: 48px 0;
      }

      .timeline-items {
        gap: 10px;
      }

      .timeline-item {
        padding: 16px;
        border-radius: 12px;
      }

      .timeline-year {
        font-size: 0.7rem;
        padding: 4px 10px;
        margin-bottom: 8px;
      }

      .timeline-title {
        font-size: 0.9rem;
        margin-bottom: 6px;
      }

      .timeline-desc {
        font-size: 0.8rem;
        line-height: 1.6;
      }

      /* ===== CEO Section ===== */
      .ceo {
        padding: 48px 0;
      }

      .ceo-content {
        gap: 24px;
        text-align: center;
      }

      .ceo-image {
        width: 160px;
        height: 200px;
        margin: 0 auto;
      }

      .ceo-info {
        text-align: center;
      }

      .ceo-name {
        font-size: 1.4rem;
      }

      .ceo-title {
        font-size: 0.8rem;
        margin-bottom: 16px;
      }

      .ceo-bio {
        font-size: 0.85rem;
        line-height: 1.8;
        text-align: left;
      }

      .ceo-quote {
        font-size: 0.9rem;
        padding: 16px;
        margin-top: 16px;
        border-radius: 12px;
      }

      /* ===== Contact Section (CTA) ===== */
      #contact.section.cta {
        padding: 8rem 0;
        background-color: #0B132B;
        /* Dark Blue Placeholder */
        background-size: cover;
        background-position: center;
        color: #FFFFFF;
        position: relative;
        text-align: center;
      }

      #contact.section.cta .section-title,
      #contact.section.cta .section-desc,
      #contact.section.cta .section-label {
        color: #FFFFFF;
      }

      #contact.section.cta .btn-primary {
        background: var(--primary-color);
        color: #FFFFFF;
        border: none;
        padding: 1rem 3rem;
        font-size: 1.1rem;
      }

      #contact.section.cta .btn-primary:hover {
        background: #333333;
        transform: translateY(-2px);
      }

      /* ===== Footer ===== */
      .footer {
        padding: 32px 0;
        padding-bottom: 80px;
        /* CTAボタンとの重なり防止 */
      }

      .footer-inner {
        grid-template-columns: 1fr;
        gap: 24px;
        text-align: center;
      }

      .footer-brand {
        align-items: center;
      }

      .footer-links {
        justify-content: center;
        gap: 16px;
      }

      .footer-link {
        font-size: 0.85rem;
      }
    }

    /* Bit Valley Section */
    .bitvalley {
      background: linear-gradient(180deg, #F5F7FA 0%, #FFFFFF 100%);
      position: relative;
      overflow: hidden;
      padding: var(--space-3xl) 0;
    }

    .bitvalley::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background:
        radial-gradient(ellipse 80% 50% at 50% 0%, rgba(111, 45, 168, 0.05) 0%, transparent 50%),
        radial-gradient(ellipse 60% 40% at 80% 100%, rgba(74, 144, 226, 0.05) 0%, transparent 50%);
      pointer-events: none;
    }

    .bitvalley .section-header {
      text-align: center;
      margin-bottom: var(--space-2xl);
      position: relative;
      z-index: 1;
    }

    .bitvalley .section-label {
      color: var(--color-secondary);
      border-color: var(--color-secondary);
    }

    .bitvalley .section-title {
      color: var(--color-text-primary);
      font-size: clamp(2rem, 5vw, 3.5rem);
    }

    .bitvalley .section-desc {
      color: var(--color-text-secondary);
      max-width: 800px;
      margin: 0 auto;
    }

    .bitvalley-lead {
      text-align: center;
      margin-bottom: var(--space-2xl);
      position: relative;
      z-index: 1;
    }

    .bitvalley-lead-text {
      font-size: 1.25rem;
      color: var(--color-text-secondary);
      line-height: 1.8;
      max-width: 900px;
      margin: 0 auto;
    }

    .pillars-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: var(--space-xl);
      margin-bottom: var(--space-xl);
      position: relative;
      z-index: 1;
    }

    .pillars-bottom {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: var(--space-xl);
      max-width: 680px;
      margin: 0 auto var(--space-2xl);
      position: relative;
      z-index: 1;
    }

    .pillar-card {
      background: var(--color-bg-card);
      backdrop-filter: none;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      padding: var(--space-xl) var(--space-lg);
      text-align: center;
      transition: all 0.4s ease;
      position: relative;
      overflow: hidden;
      min-height: 200px;
      display: flex;
      flex-direction: column;
      justify-content: flex-start;
    }

    .pillar-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 4px;
      background: var(--gradient-accent);
      opacity: 0;
      transition: opacity 0.3s ease;
    }

    .pillar-card:hover {
      transform: translateY(-8px);
      background: #fff;
      border-color: var(--color-accent);
      box-shadow: 0 12px 30px rgba(0, 0, 0, 0.06);
    }

    .pillar-card:hover::before {
      opacity: 1;
    }

    .pillar-number {
      font-family: var(--font-display);
      font-size: 3rem;
      font-weight: 700;
      background: var(--gradient-accent);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      margin-bottom: var(--space-sm);
    }

    .pillar-title {
      color: var(--color-text-primary);
      font-size: 1.1rem;
      font-weight: 600;
      margin-bottom: var(--space-sm);
      line-height: 1.4;
    }

    .pillar-desc {
      color: var(--color-text-secondary);
      font-size: 0.875rem;
      line-height: 1.6;
    }

    .bitvalley-quote {
      background: rgba(111, 45, 168, 0.05);
      border-left: 4px solid var(--color-accent);
      border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
      padding: var(--space-xl);
      margin: var(--space-2xl) auto;
      max-width: 900px;
      position: relative;
      z-index: 1;
    }

    .bitvalley-quote-text {
      color: var(--color-text-primary);
      font-size: 1.25rem;
      line-height: 1.8;
      font-style: italic;
      margin-bottom: var(--space-md);
    }

    .bitvalley-quote-author {
      color: var(--color-secondary);
      font-weight: 600;
    }

    .bitvalley-stats {
      display: flex;
      justify-content: center;
      gap: var(--space-2xl);
      margin-top: var(--space-2xl);
      position: relative;
      z-index: 1;
    }

    .bitvalley-stat {
      text-align: center;
    }

    .bitvalley-stat-value {
      font-family: var(--font-display);
      font-size: 2.5rem;
      font-weight: 700;
      background: var(--gradient-accent);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .bitvalley-stat-label {
      color: rgba(255, 255, 255, 0.7);
      font-size: 0.875rem;
      margin-top: var(--space-xs);
    }

    @media (max-width: 1024px) {
      .pillars-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .pillars-bottom {
        grid-template-columns: 1fr;
        max-width: 400px;
      }
    }

    @media (max-width: 768px) {
      .pillars-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin-left: auto;
        margin-right: auto;
      }

      .pillars-bottom {
        max-width: 400px;
      }

      .bitvalley-stats {
        flex-wrap: wrap;
        gap: var(--space-lg);
      }

      .pillar-card {
        min-height: auto;
        padding: var(--space-lg);
      }
    }

    @media (max-width: 480px) {
      .pillar-number {
        font-size: 2.5rem;
      }

      .bitvalley-quote-text {
        font-size: 1rem;
      }
    }

    /* ===== Hackathon Section Enhancements ===== */
    #hackathon {
      color: #fff;
    }

    #hackathon .section-title,
    #hackathon .section-desc,
    #hackathon .section-label {
      color: #fff;
    }

    .sponsor-item {
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      justify-content: center;
      width: 100%;
      min-height: 110px;
      gap: 0.75rem;
      padding: var(--space-md);
      background: rgba(255, 255, 255, 0.9);
      backdrop-filter: blur(10px);
      border-radius: 16px;
      border: 1px solid rgba(255, 255, 255, 0.1);
      transition: transform 0.3s ease;
    }

    .sponsor-item.highlight {
      background: rgba(255, 255, 255, 0.95);
      border: 1px solid rgba(0, 113, 227, 0.3);
    }

    .sponsor-item:hover {
      transform: translateY(-5px);
      background: rgba(255, 255, 255, 1);
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    }

    .sponsor-logo {
      max-height: 40px;
      width: auto;
    }

    .sponsor-logo.large {
      max-height: 80px;
      width: auto;
      max-width: 100%;
    }

    .sponsor-name {
      font-family: var(--font-display);
      font-size: 1.25rem;
      font-weight: 700;
      color: #fff;
      margin: 0;
      letter-spacing: 0.05em;
    }

    .sponsors-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: var(--space-md);
      margin-top: 2rem;
    }

    @media (max-width: 768px) {
      .sponsors-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 8px;
        margin-top: 1.5rem;
      }

      .sponsor-item {
        width: 100%;
        min-height: 60px;
        padding: 8px;
        border-radius: 12px;
      }

      .sponsor-logo {
        max-height: 32px;
      }

      /* Services Section Mobile Optimization */
      .service-header {
        display: flex;
        align-items: center;
        gap: 12px;
        margin-bottom: 8px;
        flex-direction: row;
        text-align: left;
      }

      .service-icon-wrap {
        margin: 0;
        width: 48px;
        height: 48px;
        flex-shrink: 0;
      }

      .service-title {
        margin: 0;
        font-size: 1.1rem;
        text-align: left;
      }

      .service-desc {
        text-align: left;
        font-size: 0.85rem;
        color: #ffffff;
      }

      /* CEO Section Mobile Optimization */
      .ceo-bg-text {
        right: auto;
        left: 80%;
        /* Start from right side */
        font-size: 4rem;
        /* Reduce size slightly for mobile if needed, or rely on clamp override if necessary */
      }
    }

    /* Utility classes for refactoring */
    .filter-invert {
      filter: brightness(0) invert(1);
    }

    .bg-white {
      background: #fff;
    }

    .hackathon-bg {
      background: url('starry_bg.png') center/cover no-repeat;
      position: relative;
    }

    .overlay-dark {
      position: absolute;
      inset: 0;
      background: rgba(0, 0, 0, 0.6);
      z-index: 0;
    }

    .relative-z1 {
      position: relative;
      z-index: 1;
    }

    /* ===== Language Switcher ===== */
    .lang-switcher {
      display: flex;
      gap: 0.5rem;
      margin-left: 1.5rem;
    }

    /* デスクトップ用ボタン表示 */
    .lang-desktop {
      display: flex;
    }

    .lang-mobile {
      display: none;
    }

    .lang-btn {
      background: transparent;
      border: 1px solid rgba(0, 0, 0, 0.15);
      color: var(--color-text-secondary);
      padding: 0.375rem 0.75rem;
      border-radius: 4px;
      font-size: 0.75rem;
      font-weight: 500;
      cursor: pointer;
      transition: all 0.2s ease;
      font-family: var(--font-body);
    }

    .lang-btn:hover {
      border-color: var(--color-accent);
      color: var(--color-accent);
    }

    .lang-btn.active {
      background: var(--color-accent);
      border-color: var(--color-accent);
      color: #fff;
    }

    /* モバイル用プルダウン */
    .lang-dropdown-toggle {
      display: flex;
      align-items: center;
      gap: 0.375rem;
      background: transparent;
      border: 1px solid rgba(0, 0, 0, 0.15);
      color: var(--color-text-secondary);
      padding: 0.375rem 0.75rem;
      border-radius: 4px;
      font-size: 0.75rem;
      font-weight: 500;
      cursor: pointer;
      transition: all 0.2s ease;
      font-family: var(--font-body);
    }

    .lang-dropdown-toggle:hover {
      border-color: var(--color-accent);
      color: var(--color-accent);
    }

    .lang-dropdown-toggle.open {
      border-color: var(--color-accent);
      color: var(--color-accent);
    }

    .dropdown-arrow {
      transition: transform 0.2s ease;
    }

    .lang-dropdown-toggle.open .dropdown-arrow {
      transform: rotate(180deg);
    }

    .lang-mobile {
      position: relative;
    }

    .lang-dropdown-menu {
      position: absolute;
      top: 100%;
      right: 0;
      margin-top: 0.5rem;
      background: #fff;
      border: 1px solid rgba(0, 0, 0, 0.1);
      border-radius: 8px;
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
      min-width: 120px;
      opacity: 0;
      visibility: hidden;
      transform: translateY(-8px);
      transition: all 0.2s ease;
      z-index: 1000;
      overflow: hidden;
    }

    .lang-dropdown-menu.open {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }

    .lang-dropdown-item {
      display: block;
      width: 100%;
      padding: 0.625rem 1rem;
      background: transparent;
      border: none;
      color: var(--color-text-secondary);
      font-size: 0.8125rem;
      font-weight: 500;
      text-align: left;
      cursor: pointer;
      transition: all 0.15s ease;
      font-family: var(--font-body);
    }

    .lang-dropdown-item:hover {
      background: rgba(59, 130, 246, 0.08);
      color: var(--color-accent);
    }

    .lang-dropdown-item.active {
      background: var(--color-accent);
      color: #fff;
    }

    /* レスポンシブ: 900px以下でプルダウンに切り替え */
    @media (max-width: 900px) {
      .lang-desktop {
        display: none;
      }

      .lang-mobile {
        display: block;
      }

      .lang-switcher {
        margin-left: 1rem;
      }
    }

    @media (max-width: 768px) {
      .lang-switcher {
        margin-left: 0.75rem;
      }

      .lang-dropdown-toggle {
        padding: 0.3rem 0.6rem;
        font-size: 0.7rem;
      }
    }

    /* ===== Governance Section (安心の体制) ===== */
    .governance {
      background: linear-gradient(180deg, #0a0f1a 0%, #0d1420 100%);
      position: relative;
      overflow: hidden;
      padding: 6rem 2rem;
    }

    .governance::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.3), transparent);
    }

    .governance .section-title {
      color: #fff;
    }

    .governance .section-desc {
      color: rgba(255, 255, 255, 0.8);
    }

    .governance .section-label {
      color: #3b82f6;
    }

    .governance-intro {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 3rem;
    }

    .governance-intro p {
      color: rgba(255, 255, 255, 0.85);
      font-size: 1.05rem;
      line-height: 1.8;
    }

    .governance-pillars {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
      margin-bottom: 3rem;
    }

    @media (max-width: 1024px) {
      .governance-pillars {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 640px) {
      .governance-pillars {
        grid-template-columns: 1fr;
      }
    }

    .governance-pillar {
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 16px;
      padding: 2rem;
      transition: all 0.3s ease;
    }

    .governance-pillar:hover {
      background: rgba(255, 255, 255, 0.05);
      border-color: rgba(59, 130, 246, 0.3);
      transform: translateY(-4px);
    }

    .pillar-icon {
      width: 48px;
      height: 48px;
      background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(139, 92, 246, 0.2));
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 1.25rem;
    }

    .pillar-icon svg {
      width: 24px;
      height: 24px;
      color: #60a5fa;
    }

    .pillar-title {
      font-size: 1.125rem;
      font-weight: 600;
      color: #fff;
      margin-bottom: 0.75rem;
    }

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

    .pillar-items li {
      color: rgba(255, 255, 255, 0.85);
      font-size: 0.875rem;
      padding: 0.375rem 0;
      padding-left: 1rem;
      position: relative;
    }

    .pillar-items li::before {
      content: '';
      position: absolute;
      left: 0;
      top: 50%;
      width: 4px;
      height: 4px;
      background: #3b82f6;
      border-radius: 50%;
      transform: translateY(-50%);
    }

    /* ===== Evidence Section (AGI駆動開発) ===== */
    .evidence-section {
      padding: 8rem 2rem;
      background: #0a0a0a;
      position: relative;
      overflow: hidden;
    }

    .evidence-section::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 1px;
      background: linear-gradient(90deg, transparent, #10b981, transparent);
    }

    .evidence-badge {
      display: inline-flex;
      align-items: center;
      gap: 0.75rem;
      padding: 0.75rem 1.5rem;
      background: linear-gradient(135deg, #10b981, #059669);
      border-radius: 0;
      font-size: 0.75rem;
      font-weight: 700;
      color: #000;
      letter-spacing: 0.15em;
      text-transform: uppercase;
      margin-bottom: 2rem;
      box-shadow: 0 0 40px rgba(16, 185, 129, 0.3);
    }

    .evidence-badge svg {
      width: 18px;
      height: 18px;
    }

    .evidence-header {
      text-align: left;
      max-width: 900px;
      margin: 0 auto 4rem;
    }

    .evidence-title {
      font-size: clamp(2rem, 5vw, 3.5rem);
      font-weight: 800;
      color: #fff;
      line-height: 1.2;
      margin-bottom: 1rem;
      letter-spacing: -0.02em;
    }

    .evidence-title strong {
      color: #10b981;
      display: inline;
    }

    .evidence-subtitle {
      font-size: 1.125rem;
      color: #a1a1aa;
      font-weight: 400;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }

    .evidence-subtitle::before {
      content: '';
      width: 24px;
      height: 2px;
      background: #10b981;
    }

    .evidence-main {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 3rem;
      max-width: 1100px;
      margin: 0 auto;
      align-items: start;
    }

    .evidence-screenshot {
      position: relative;
    }

    .evidence-screenshot::before {
      content: 'ChatGPT Analysis';
      position: absolute;
      top: -12px;
      left: 24px;
      background: #10b981;
      color: #000;
      font-size: 0.7rem;
      font-weight: 700;
      padding: 4px 12px;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      z-index: 1;
    }

    .evidence-image {
      width: 100%;
      height: auto;
      border: 2px solid #10b981;
      border-radius: 4px;
      box-shadow: 0 25px 80px rgba(0, 0, 0, 0.5), 0 0 60px rgba(16, 185, 129, 0.15);
    }

    .evidence-findings {
      display: flex;
      flex-direction: column;
      gap: 1.5rem;
    }

    .evidence-finding {
      background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(16, 185, 129, 0.02));
      border: 1px solid rgba(16, 185, 129, 0.3);
      padding: 1.5rem 2rem;
      position: relative;
    }

    .evidence-finding::before {
      content: '';
      position: absolute;
      left: 0;
      top: 0;
      bottom: 0;
      width: 4px;
      background: #10b981;
    }

    .finding-number {
      position: absolute;
      top: -10px;
      right: 20px;
      font-size: 3rem;
      font-weight: 900;
      color: rgba(16, 185, 129, 0.15);
      line-height: 1;
    }

    .finding-label {
      font-size: 0.7rem;
      font-weight: 700;
      color: #10b981;
      letter-spacing: 0.15em;
      text-transform: uppercase;
      margin-bottom: 0.5rem;
    }

    .finding-text {
      font-size: 1rem;
      color: #fff;
      line-height: 1.7;
      font-weight: 500;
      margin: 0;
    }

    .finding-text strong {
      color: #10b981;
    }

    @media (max-width: 900px) {
      .evidence-main {
        grid-template-columns: 1fr;
        gap: 2rem;
      }

      .evidence-header {
        text-align: center;
      }

      .evidence-subtitle {
        justify-content: center;
      }

      .evidence-subtitle::before {
        display: none;
      }
    }

    /* ===== Campaign Section (年末年始キャンペーン) ===== */
    .campaign-section {
      padding: 6rem 2rem;
      background: #0a0a0a;
      position: relative;
    }

    .campaign-section::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(251, 191, 36, 0.3), transparent);
    }

    .campaign-header {
      text-align: center;
      margin-bottom: 4rem;
    }

    .campaign-section .section-label {
      display: inline-flex;
      align-items: center;
      gap: 0.75rem;
      padding: 0.625rem 1.25rem;
      background: linear-gradient(135deg, rgba(251, 191, 36, 0.2), rgba(245, 158, 11, 0.1));
      border: 1px solid rgba(251, 191, 36, 0.3);
      border-radius: 9999px;
      font-size: 0.8rem;
      font-weight: 700;
      color: #fbbf24;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      margin-bottom: 1.5rem;
    }

    .campaign-section .section-label svg {
      width: 18px;
      height: 18px;
    }

    .campaign-section .section-title {
      font-size: clamp(1.75rem, 4vw, 2.5rem);
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 1rem;
      line-height: 1.3;
    }

    .campaign-section .section-desc {
      font-size: 1rem;
      color: rgba(255, 255, 255, 0.8);
      max-width: 600px;
      margin: 0 auto;
      line-height: 1.7;
    }

    .campaign-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 2rem;
      max-width: 1000px;
      margin: 0 auto;
    }

    .campaign-card {
      background: #111111;
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: 20px;
      overflow: hidden;
      transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
      text-decoration: none;
      display: block;
      position: relative;
    }

    .campaign-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 20px 40px rgba(251, 191, 36, 0.15);
    }

    .campaign-image-wrapper {
      position: relative;
      width: 100%;
      height: 220px;
      overflow: hidden;
      background: #1a1a1a;
    }

    .campaign-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .campaign-card:hover .campaign-image {
      transform: scale(1.08);
    }

    .campaign-image-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, transparent 60%);
      pointer-events: none;
    }

    .campaign-badge {
      position: absolute;
      top: 1rem;
      left: 1rem;
      padding: 0.5rem 1rem;
      background: rgba(251, 191, 36, 0.95);
      color: #000;
      font-size: 0.7rem;
      font-weight: 800;
      letter-spacing: 0.05em;
      text-transform: uppercase;
      border-radius: 6px;
      z-index: 2;
    }

    .campaign-content {
      padding: 1.75rem;
    }

    .campaign-title {
      font-size: 1.35rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 0.5rem;
      line-height: 1.3;
    }

    .campaign-period {
      font-size: 0.85rem;
      color: rgba(255, 255, 255, 0.6);
      margin-bottom: 1rem;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }

    .campaign-period::before {
      content: '';
      width: 6px;
      height: 6px;
      background: #fbbf24;
      border-radius: 50%;
    }

    .campaign-desc {
      font-size: 0.9rem;
      color: rgba(255, 255, 255, 0.8);
      line-height: 1.7;
      margin: 0 0 1.25rem 0;
    }

    .campaign-cta {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 0.85rem;
      font-weight: 600;
      color: #fbbf24;
      transition: gap 0.3s;
    }

    .campaign-card:hover .campaign-cta {
      gap: 0.75rem;
    }

    .campaign-cta svg {
      width: 18px;
      height: 18px;
      transition: transform 0.3s;
    }

    .campaign-card:hover .campaign-cta svg {
      transform: translateX(4px);
    }

    @media (max-width: 767px) {
      .campaign-section {
        padding: 4rem 1.5rem;
      }

      .campaign-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
      }

      .campaign-image-wrapper {
        height: 180px;
      }

      .campaign-content {
        padding: 1.5rem;
      }

      .campaign-title {
        font-size: 1.2rem;
      }
    }

    /* ===== Executive Team Grid ===== */
    .executive-team-grid {
      margin-top: 3rem;
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }

    .executive-card {
      text-align: center;
      background: rgba(0, 113, 227, 0.05);
      border-radius: 1rem;
      padding: 1.5rem;
      border: 1px solid rgba(0, 113, 227, 0.15);
    }

    .executive-card-featured {
      grid-column: span 1;
    }

    .executive-photo {
      width: 120px;
      height: 120px;
      border-radius: 50%;
      object-fit: cover;
      border: 2px solid var(--color-accent);
      margin-bottom: 1rem;
    }

    .executive-photo-lg {
      width: 140px;
      height: 140px;
      border-width: 3px;
    }

    .executive-role {
      color: var(--color-accent);
      font-size: 0.7rem;
      font-weight: 600;
      letter-spacing: 0.05em;
    }

    .executive-name {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--color-text-primary);
      margin: 0.25rem 0;
    }

    .executive-title {
      color: var(--color-accent);
      font-size: 0.8rem;
      font-weight: 600;
      margin-bottom: 0.75rem;
    }

    .executive-bio {
      font-size: 0.8rem;
      color: var(--color-text-secondary);
      line-height: 1.6;
      margin: 0;
    }

    /* スマホ: Motookaは1カラム、渡邊・村脇は2カラム */
    @media (max-width: 768px) {
      .executive-team-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
      }

      .executive-card-featured {
        grid-column: span 2;
      }

      .executive-photo {
        width: 100px;
        height: 100px;
      }

      .executive-photo-lg {
        width: 120px;
        height: 120px;
      }

      .executive-name {
        font-size: 1rem;
      }

      .executive-bio {
        font-size: 0.75rem;
      }
    }

    /* ===== Targeted Section Label Colors (User Request: #555) ===== */
    .partnerships .section-label,
    .clients .section-label,
    .ambassadors .section-label,
    .history .section-label,
    .about .section-label,
    .ceo .section-label,
    #contact .section-label,
    .cta .section-label {
      color: #555555 !important;
    }