body {
      font-family: 'Noto Sans JP', sans-serif;
      margin: 0;
      padding: 0;
      overflow-x: hidden;
    }

    /* ===================
       Hero Section
       =================== */
    .hero-main {
      position: relative;
      height: 100vh;
      min-height: 700px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, rgba(26, 47, 64, 0.92) 0%, rgba(44, 62, 80, 0.88) 100%),
                  url('custom_ignis/images/hero-trucks.jpg') center/cover no-repeat;
      color: white;
      overflow: hidden;
    }

    .hero-main::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: radial-gradient(circle at 30% 50%, rgba(51, 122, 183, 0.2) 0%, transparent 50%);
      pointer-events: none;
    }

    .hero-content {
      position: relative;
      z-index: 10;
      text-align: center;
      max-width: 1200px;
      padding: 0 24px;
      animation: fadeInUp 1.2s ease-out;
    }

    @keyframes fadeInUp {
      from {
        opacity: 0;
        transform: translateY(40px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    .hero-logo {
      width: 380px;
      height: auto;
      margin-bottom: 56px;
      animation: fadeIn 1.8s ease-out;
      filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.15));
    }

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

    .hero-main h1 {
      margin: 0;
      line-height: 1;
    }

    .hero-main h1 img {
      display: block;
      margin: 0 auto;
    }

    .hero-main .hero-subtitle {
      font-size: 28px;
      font-weight: 400;
      letter-spacing: 6px;
      margin-bottom: 48px;
      opacity: 1;
      line-height: 1.8;
    }

    .hero-main .hero-description {
      font-size: 19px;
      font-weight: 400;
      line-height: 2.2;
      max-width: 900px;
      margin: 0 auto 64px;
      opacity: 0.98;
      letter-spacing: 0.5px;
    }

    .hero-cta {
      display: inline-flex;
      gap: 24px;
      flex-wrap: wrap;
      justify-content: center;
    }

    .hero-btn {
      display: inline-block;
      padding: 20px 56px;
      font-size: 16px;
      font-weight: 600;
      text-decoration: none;
      border-radius: 2px;
      transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
      letter-spacing: 1.5px;
      position: relative;
      overflow: hidden;
    }

    .hero-btn::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 0;
      height: 100%;
      background: rgba(255, 255, 255, 0.1);
      transition: width 0.4s ease;
    }

    .hero-btn:hover::before {
      width: 100%;
    }

    .hero-btn-primary {
      background: #337ab7;
      color: white;
      box-shadow: 0 2px 16px rgba(51, 122, 183, 0.3);
    }

    .hero-btn-primary:hover {
      background: #2563a0;
      transform: translateY(-3px);
      box-shadow: 0 8px 32px rgba(51, 122, 183, 0.4);
    }

    .hero-btn-secondary {
      background: transparent;
      color: white;
      border: 2px solid rgba(255, 255, 255, 0.9);
    }

    .hero-btn-secondary:hover {
      background: rgba(255, 255, 255, 0.15);
      border-color: white;
      transform: translateY(-3px);
    }

    .hero-scroll {
      position: absolute;
      bottom: 48px;
      left: 50%;
      transform: translateX(-50%);
      color: white;
      font-size: 11px;
      letter-spacing: 2.5px;
      opacity: 0.85;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 16px;
      text-transform: uppercase;
      font-weight: 600;
    }

    .hero-scroll::after {
      content: '';
      display: block;
      width: 1px;
      height: 56px;
      background: linear-gradient(to bottom, rgba(255, 255, 255, 0.8), transparent);
      animation: scrollBar 2s ease-in-out infinite;
    }

    @keyframes scrollBar {
      0% {
        height: 0;
        opacity: 0;
      }
      30% {
        height: 56px;
        opacity: 1;
      }
      100% {
        height: 56px;
        opacity: 0;
      }
    }

    /* ===================
       Mission Section
       =================== */
    .mission-section {
      padding: 160px 0;
      background: linear-gradient(to bottom, #fafafa 0%, #ffffff 100%);
    }

    .mission-content {
      max-width: 1100px;
      margin: 0 auto;
      text-align: center;
      padding: 0 32px;
    }

    .section-label {
      font-size: 11px;
      font-weight: 700;
      color: #337ab7;
      letter-spacing: 4px;
      margin-bottom: 20px;
      text-transform: uppercase;
      opacity: 0.85;
    }

    .section-title-main {
      font-size: 52px;
      font-weight: 700;
      color: #1a1a1a;
      margin-bottom: 56px;
      line-height: 1.4;
      letter-spacing: 0px;
    }

    .section-description {
      font-size: 19px;
      line-height: 2.2;
      color: #333;
      margin-bottom: 0;
      font-weight: 400;
      letter-spacing: 0.5px;
    }

    /* ===================
       Business Section
       =================== */
    .business-section {
      padding: 160px 0;
      background: #fafafa;
    }

    .business-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      max-width: 1200px;
      margin: 80px auto 0;
      padding: 0 32px;
    }

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

    @media (max-width: 640px) {
      .business-section {
        padding: 60px 0;
      }

      .business-section > div:first-child {
        margin-bottom: 40px;
        padding: 24px 16px;
        background: transparent;
        margin-left: 0;
        margin-right: 0;
      }

      .section-label {
        font-size: 11px;
        margin-bottom: 8px;
        color: #337ab7;
      }

      .section-title-main {
        font-size: 24px !important;
        margin-bottom: 0;
        color: #2c3e50;
      }

      .business-grid {
        grid-template-columns: 1fr;
        gap: 24px;
        margin-top: 0;
        padding: 0 16px;
      }

      .business-card {
        border-radius: 16px;
        box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
        padding: 0;
        background: white;
        border: 1px solid #e8e8e8;
      }

      .business-card-image {
        border-radius: 16px 16px 0 0;
      }

      .business-card-content {
        margin-top: 0;
        margin-right: 0;
        padding: 16px;
      }

      .business-card-title {
        font-size: 17px;
      }

      .business-card-subtitle {
        font-size: 11px;
      }
    }

    .business-card {
      position: relative;
      background: white;
      border-radius: 12px;
      overflow: hidden;
      box-shadow: none;
      transition: all 0.3s ease;
      display: block;
      opacity: 0;
      transform: translateY(30px);
      transition: opacity 0.6s ease, transform 0.6s ease, box-shadow 0.3s ease;
    }

    .business-card.visible {
      opacity: 1;
      transform: translateY(0);
    }

    .business-card:hover {
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    }

    .business-card-image {
      position: relative;
      display: block;
      padding-top: 100%;
      height: 0;
      overflow: hidden;
      border-radius: 12px;
    }

    .business-card-image img {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s cubic-bezier(0.23, 1, 0.32, 1);
    }

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

    .business-card-icon {
      position: absolute;
      bottom: 20px;
      right: 20px;
      width: 18px;
      height: 18px;
      background: white;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      z-index: 10;
      transform: scale(1.778);
      transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
    }

    .business-card:hover .business-card-icon {
      background: #337ab7;
    }

    .business-card-icon::after {
      content: '→';
      font-size: 11px;
      color: #337ab7;
      transform: scale(0.6);
      transition: color 0.3s cubic-bezier(0.23, 1, 0.32, 1);
    }

    .business-card:hover .business-card-icon::after {
      color: white;
    }

    .business-card-content {
      margin-top: 24px;
      margin-right: 20px;
      margin-left: 20px;
      margin-bottom: 20px;
    }

    .business-card-subtitle {
      font-size: 12px;
      font-weight: 600;
      color: #888;
      line-height: 1.5;
      letter-spacing: 0.5px;
    }

    .business-card-title {
      display: block;
      font-size: 19px;
      font-weight: 700;
      color: #1a1a1a;
      margin-top: 10px;
      letter-spacing: 0.3px;
      line-height: 1.5;
    }

    .business-card-description {
      display: none;
    }

    .business-card-link {
      display: none;
    }

    /* ===================
       Company Section
       =================== */
    .company-section {
      padding: 160px 0;
      background: linear-gradient(135deg, #2a3d4f 0%, #384a5d 100%);
      color: white;
    }

    .company-content {
      max-width: 900px;
      margin: 80px auto 0;
      padding: 0 32px;
      text-align: center;
    }

    .company-content h3 {
      font-size: 26px;
      font-weight: 700;
      margin-bottom: 32px;
      line-height: 1.5;
      letter-spacing: 0.5px;
    }

    .company-content p {
      font-size: 17px;
      line-height: 2.1;
      margin-bottom: 40px;
      opacity: 0.97;
      letter-spacing: 0.3px;
      text-align: left;
    }

    .company-info-list {
      list-style: none;
      padding: 0;
      margin: 0 0 32px 0;
    }

    .company-info-list li {
      padding: 12px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.2);
      display: flex;
      gap: 16px;
    }

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

    .company-info-list .label {
      font-weight: 600;
      min-width: 100px;
      opacity: 0.8;
    }

    .company-info-list .value {
      flex: 1;
    }

    .company-link {
      display: inline-block;
      padding: 14px 32px;
      background: white;
      color: #2c3e50;
      text-decoration: none;
      border-radius: 4px;
      font-weight: 600;
      transition: all 0.3s ease;
    }

    .company-link:hover {
      background: #f8f9fa;
      transform: translateY(-2px);
    }

    .company-image {
      position: relative;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
      margin: 32px auto;
      max-width: 800px;
    }

    .company-image img {
      width: 100%;
      height: auto;
      display: block;
      border-radius: 8px;
    }

    /* ===================
       Environmental Section
       =================== */
    .environmental-section {
      padding: 160px 0;
      background: #f8f9fa;
    }

    .environmental-content {
      max-width: 1100px;
      margin: 80px auto 0;
      padding: 0 32px;
    }

    .environmental-content h3 {
      font-size: 26px;
      font-weight: 700;
      margin-bottom: 32px;
      line-height: 1.5;
      letter-spacing: 0.5px;
      text-align: center;
      color: #2c3e50;
    }

    .environmental-content p {
      font-size: 17px;
      line-height: 2.1;
      margin-bottom: 40px;
      letter-spacing: 0.3px;
      text-align: center;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
      color: #555;
    }

    .environmental-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
      margin: 48px 0;
    }

    .environmental-card {
      background: #fff;
      border: 1px solid #e8e8e8;
      padding: 32px;
      box-shadow: 0 2px 8px rgba(0,0,0,0.08);
      transition: all 0.3s ease;
      position: relative;
    }

    .environmental-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    }

    .environmental-card .number {
      font-size: 48px;
      font-weight: 800;
      color: #337ab7;
      margin-bottom: 16px;
      line-height: 1;
      opacity: 0.8;
    }

    .environmental-card h4 {
      font-size: 20px;
      font-weight: 700;
      margin: 0 0 16px 0;
      color: #2c3e50;
    }

    .environmental-card p {
      font-size: 15px;
      line-height: 1.8;
      margin: 0;
      text-align: left;
      color: #666;
    }

    /* ===================
       CTA Section
       =================== */
    .cta-section {
      padding: 160px 0;
      background: linear-gradient(135deg, #2e6da0 0%, #2563a0 100%);
      color: white;
      text-align: center;
    }

    .cta-content {
      max-width: 900px;
      margin: 0 auto;
      padding: 0 32px;
    }

    .cta-section h2 {
      font-size: 32px;
      font-weight: 700;
      margin-bottom: 32px;
      letter-spacing: 1px;
    }

    .cta-section p {
      font-size: 19px;
      line-height: 2.2;
      margin-bottom: 64px;
      opacity: 0.98;
      letter-spacing: 0.5px;
    }

    .cta-btn {
      display: inline-block;
      padding: 18px 56px;
      background: white;
      color: #337ab7;
      text-decoration: none;
      border-radius: 4px;
      font-size: 16px;
      font-weight: 700;
      transition: all 0.3s ease;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    }

    .cta-btn:hover {
      background: #f8f9fa;
      transform: translateY(-2px);
      box-shadow: 0 6px 24px rgba(0, 0, 0, 0.3);
    }

    /* ===================
       Responsive
       =================== */
    /* Hide scroll indicator on short screens */
    @media (max-height: 800px) {
      .hero-scroll {
        display: none;
      }
    }

    @media (max-width: 768px) {
      .hero-main {
        min-height: 600px;
        background: linear-gradient(135deg, rgba(26, 47, 64, 0.92) 0%, rgba(44, 62, 80, 0.88) 100%),
                    url('custom_ignis/images/hero-trucks.jpg') center 30%/cover no-repeat !important;
      }

      .hero-scroll {
        display: none;
      }

      .hero-main h1 {
        font-size: 36px;
      }

      .hero-main .hero-subtitle {
        font-size: 18px;
      }

      .hero-main .hero-description {
        font-size: 16px;
      }

      .hero-btn {
        padding: 14px 32px;
        font-size: 14px;
      }

      .hero-logo {
        width: 280px;
      }

      .hero-cta {
        flex-direction: column;
        gap: 16px;
        width: 100%;
        align-items: center;
      }

      .hero-btn {
        width: 100%;
        max-width: 300px;
        text-align: center;
      }

      .section-title-main {
        font-size: 32px;
      }

      .business-grid {
        grid-template-columns: 1fr;
        gap: 24px;
      }

      .company-content {
        padding: 0 24px;
      }

      .company-content h3 {
        font-size: 22px;
      }

      .company-content p {
        font-size: 15px;
      }

      .company-info-list .label {
        min-width: 80px;
        font-size: 14px;
      }

      .company-info-list .value {
        font-size: 14px;
      }

      .environmental-content {
        padding: 0 24px;
      }

      .environmental-content p {
        font-size: 15px;
      }

      .environmental-grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }

      .environmental-card .number {
        font-size: 40px;
      }

      .mission-section,
      .business-section,
      .company-section,
      .environmental-section,
      .cta-section {
        padding: 80px 0;
      }
    }