* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans JP", sans-serif;
      font-size: 16px;
      line-height: 1.7;
      color: #2c3e50;
      background-color: #fdfdfd;
      padding-top: 100px; /* Account for fixed header */
    }
    
    /* Professional Header */
    .header {
      background: linear-gradient(135deg, #333333 0%, #555555 100%);
      color: white;
      padding: 0.3rem 0;
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      box-shadow: 0 2px 10px rgba(0,0,0,0.1);
      transition: transform 0.3s ease-in-out;
    }
    
    .header-hidden {
      transform: translateY(-100%);
    }
    
    .header-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    
    .logo-section {
      display: flex;
      align-items: center;
      gap: 15px;
    }
    
    .logo {
      width: 60px;
      height: auto;
      filter: brightness(0) invert(1);
    }
    
    .brand-text {
      font-size: 1.5rem;
      font-weight: 600;
      color: white;
      text-decoration: none;
    }
    
    /* Navigation */
    .nav {
      display: flex;
      gap: 2rem;
      list-style: none;
      align-items: center;
    }

    ul#nav-menu {
      margin: 0;
    }
    
    .nav a {
      color: white;
      text-decoration: none;
      font-weight: 500;
      padding: 0.5rem 1rem;
      border-radius: 6px;
      transition: background-color 0.3s ease;
    }
    
    .nav a:hover, .nav a.active {
      background-color: rgba(255, 255, 255, 0.2);
    }
    
    /* Navigation CTA button adjustments */
    .nav .cta-button {
      margin: 0;
      padding: 0.5rem 1rem;
      font-size: inherit;
      box-shadow: none;
    }
    
    .nav .cta-button:hover {
      transform: none;
      box-shadow: none;
    }
    
    /* Mobile menu toggle */
    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      color: white;
      font-size: 1.5rem;
      cursor: pointer;
    }
    
    /* Main Content */
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 40px 20px;
    }
    
    /* Hero Section */
    .hero {
      text-align: center;
      padding: 40px 20px 60px;
      background: linear-gradient(135deg, rgba(245, 247, 250, 0.9) 0%, rgba(195, 207, 226, 0.9) 100%), url('/assets/images/hero-background-tech.webp'), url('/assets/images/hero-background-tech.jpg');
      background-color: #f5f7fa;
      background-size: cover;
      background-position: center;
      background-repeat: no-repeat;
      margin-bottom: 40px;
      border-radius: 12px;
    }
    
    .hero h1 {
      font-size: 3rem;
      font-weight: 700;
      margin-bottom: 1rem;
      background: linear-gradient(135deg, #333333 0%, #555555 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    
    .hero p {
      font-size: 1.2rem;
      color: #6c757d;
      max-width: 600px;
      margin: 0 auto 2rem;
    }
    
    /* Typography */
    h1 {
      font-size: 2.5rem;
      font-weight: 700;
      margin-bottom: 1.5rem;
      color: #2c3e50;
      border-bottom: 3px solid #333333;
      padding-bottom: 0.5rem;
    }
    
    h2 {
      font-size: 2rem;
      font-weight: 700;
      margin: 3rem 0 1.5rem;
      color: #2c3e50;
      position: relative;
      padding-left: 20px;
    }
    
    h2::before {
      content: "";
      position: absolute;
      left: 0;
      top: 50%;
      transform: translateY(-50%);
      width: 4px;
      height: 100%;
      background: linear-gradient(135deg, #333333 0%, #555555 100%);
      border-radius: 2px;
    }
    
    h3 {
      font-size: 1.5rem;
      font-weight: 700;
      margin: 2rem 0 1rem;
      color: #2c3e50;
    }
    
    h3:not(section h3):not(.service-grid h3):not(#included-features h3):not(#additional-charges h3):not(.no-icon) {
      display: flex;
      align-items: center;
      gap: 0.75rem;
    }
    
    .no-icon {
      display: block !important;
    }
    
    .no-icon::before {
      display: none !important;
      content: none !important;
    }
    
    h3.no-icon::before {
      display: none !important;
      content: none !important;
    }
    
    h3:not(section h3):not(.service-grid h3):not(#included-features h3):not(#additional-charges h3):not(.no-icon)::before {
      font-family: "Font Awesome 6 Free";
      font-weight: 900;
      color: #333333;
      font-size: 1.2rem;
    }
    
    /* Service Icons */
    h3:nth-of-type(1):not(.service-grid h3):not(#included-features h3):not(#additional-charges h3)::before { content: "\f0eb"; } /* lightbulb */
    h3:nth-of-type(2):not(.service-grid h3):not(#included-features h3):not(#additional-charges h3)::before { content: "\f0c0"; } /* users */
    h3:nth-of-type(3):not(.service-grid h3):not(#included-features h3):not(#additional-charges h3)::before { content: "\f0d6"; } /* file */
    h3:nth-of-type(4):not(.service-grid h3):not(#included-features h3):not(#additional-charges h3)::before { content: "\f07a"; } /* shopping cart */
    h3:nth-of-type(5):not(.service-grid h3):not(#included-features h3):not(#additional-charges h3)::before { content: "\f0b1"; } /* briefcase */
    h3:nth-of-type(6):not(.service-grid h3):not(#included-features h3):not(#additional-charges h3)::before { content: "\f7d9"; } /* tools */
    h3:nth-of-type(7):not(.service-grid h3):not(#included-features h3):not(#additional-charges h3)::before { content: "\f0c8"; } /* project-diagram */
    h3:nth-of-type(8):not(.service-grid h3):not(#included-features h3):not(#additional-charges h3)::before { content: "\f0d6"; } /* circle */
    h3:nth-of-type(9):not(.service-grid h3):not(#included-features h3):not(#additional-charges h3)::before { content: "\f0ad"; } /* wrench */
    h3:nth-of-type(10):not(.service-grid h3):not(#included-features h3):not(#additional-charges h3)::before { content: "\f059"; } /* question-circle */
    h3:nth-of-type(11):not(.service-grid h3):not(#included-features h3):not(#additional-charges h3)::before { content: "\f0e0"; } /* envelope */
    h3:nth-of-type(12):not(.service-grid h3):not(#included-features h3):not(#additional-charges h3)::before { content: "\f0c1"; } /* link */
    
    p {
      margin: 1.2rem 0;
      color: #5a6c7d;
    }
    
    /* Lists */
    ul, ol {
      margin: 1.5rem 0;
      padding-left: 2rem;
    }
    
    li {
      margin: 0.8rem 0;
      color: #5a6c7d;
    }
    
    /* Call-to-Action Buttons */
    .cta-button {
      display: inline-block;
      background: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%);
      color: white;
      padding: 15px 30px;
      text-decoration: none;
      border-radius: 8px;
      font-weight: 600;
      margin: 10px 5px;
      transition: transform 0.2s ease, box-shadow 0.2s ease;
      box-shadow: 0 4px 15px rgba(255, 107, 53, 0.4);
    }
    
    .cta-button:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(255, 107, 53, 0.6);
      color: white;
      background: linear-gradient(135deg, #e55a2b 0%, #e0841a 100%);
    }
    
    .cta-secondary {
      background: transparent;
      color: #ff6b35;
      border: 2px solid #ff6b35;
      box-shadow: none;
    }
    
    .cta-secondary:hover {
      background: #ff6b35;
      color: white;
    }
    
    /* Service Cards */
    .service-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 2rem;
      margin: 2rem 0;
    }
    
    .service-card {
      background: white;
      padding: 2rem;
      border-radius: 12px;
      box-shadow: 0 5px 15px rgba(0,0,0,0.08);
      border: 1px solid #eaeaea;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }
    
    .service-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    }
    
    /* Tables */
    table {
      width: 100%;
      border-collapse: collapse;
      margin: 2rem 0;
      background: white;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    }
    
    th, td {
      padding: 1rem;
      text-align: left;
      border-bottom: 1px solid #eaeaea;
    }
    
    th {
      background: linear-gradient(135deg, #333333 0%, #555555 100%);
      color: white;
      font-weight: 600;
    }
    
    tr:hover {
      background-color: #f8f9fa;
    }
    
    /* Contact Section */
    .contact-section {
      background: linear-gradient(135deg, #333333 0%, #555555 100%);
      color: white;
      padding: 3rem 2rem;
      border-radius: 12px;
      text-align: center;
      margin: 3rem 0;
    }
    
    .contact-section h2 {
      color: white;
      margin-bottom: 1rem;
    }
    
    .contact-section h2::before {
      background: rgba(255, 255, 255, 0.3);
    }
    
    /* Footer */
    .footer {
      background: #2c3e50;
      color: white;
      text-align: center;
      padding: 2rem 0;
      margin-top: 4rem;
    }
    
    /* Responsive Design */
    @media (max-width: 768px) {
      .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: linear-gradient(135deg, #333333 0%, #555555 100%);
        flex-direction: column;
        padding: 1rem;
        gap: 0;
      }
      
      .nav.active {
        display: flex;
      }
      
      .mobile-menu-toggle {
        display: block;
      }
      
      .hero h1 {
        font-size: 2rem;
      }
      
      .container {
        padding: 20px 15px;
      }
      
      h1 {
        font-size: 2rem;
      }
      
      h2 {
        font-size: 1.5rem;
      }
      
      .service-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
      }
      
      .cta-button {
        display: block;
        text-align: center;
        margin: 10px 0;
      }
      
      /* Mobile form improvements */
      .contact-section form > div:first-child {
        grid-template-columns: 1fr !important;
      }
      
      .contact-section .cta-button {
        font-size: 0.9rem;
        padding: 12px 20px;
      }
    }
    
    /* Sample image styling */
    .sample-image {
      max-width: 100%;
      height: auto;
      border-radius: 8px;
      box-shadow: 0 4px 12px rgba(0,0,0,0.1);
      margin: 1rem 0;
      display: block;
    }
    
    /* Section contrast styling */
    .container > section:nth-child(odd):not(.hero) {
      background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
      padding: 3rem 2rem;
      margin: 2rem -2rem;
      border-radius: 12px;
    }
    
    .container > section:nth-child(even):not(.hero) {
      background: white;
      padding: 3rem 2rem;
      margin: 2rem -2rem;
      border-radius: 12px;
      box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    }
    
    @media (max-width: 768px) {
      .sample-image {
        margin: 0.5rem 0;
      }
    }