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

        :root {
            --primary: #1A3FD6;
            --primary-light: #3B5EE8;
            --primary-dark: #0F2B9E;
            --accent: #F4F5FD;
            --text-primary: #111827;
            --text-secondary: #4B5563;
            --text-muted: #9CA3AF;
            --bg-white: #FFFFFF;
            --bg-light: #F8F9FC;
            --bg-dark: #0B1120;
            --border: #E5E7EB;
            --radius: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --green: #10B981;
            --amber: #F59E0B;
            --purple: #8B5CF6;
            --red: #EF4444;
            --teal: #14B8A6;
        }

        html { scroll-behavior: smooth; }

        body {
            font-family: 'Inter', 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
            color: var(--text-primary);
            line-height: 1.7;
            background: var(--bg-white);
            -webkit-font-smoothing: antialiased;
        }

        a { text-decoration: none; color: inherit; }
        img { max-width: 100%; display: block; }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 32px;
        }

        /* Navigation */
        .nav {
            position: fixed;
            top: 0; left: 0; right: 0;
            z-index: 100;
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.15rem;
            color: var(--text-primary);
            letter-spacing: -0.02em;
        }

        .nav-logo svg { width: 32px; height: 32px; }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }

        .nav-links a {
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }

        .nav-links a:hover { color: var(--primary); }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -4px; left: 0;
            width: 0; height: 2px;
            background: var(--primary);
            transition: var(--transition);
        }

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

        .nav-cta {
            background: var(--primary);
            color: #fff !important;
            padding: 10px 24px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.85rem;
            transition: var(--transition);
        }

        .nav-cta:hover {
            background: var(--primary-light);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(26,63,214,0.3);
        }

        .nav-cta::after { display: none !important; }

        .lang-switch {
            display: flex; gap: 12px;
            font-size: 0.8rem; color: var(--text-muted);
        }

        .lang-switch a:hover { color: var(--primary); }
        .lang-switch .active { color: var(--primary); font-weight: 600; }

        /* Hero */
        .hero {
            padding: 160px 0 100px;
            background: url('/hero-bg.jpg') center center / cover no-repeat;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11,17,32,0.55) 0%, rgba(26,63,214,0.35) 100%);
            z-index: 0;
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center; gap: 8px;
            background: rgba(255,255,255,0.15);
            color: #fff;
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 28px;
            backdrop-filter: blur(4px);
        }

        .hero h1 {
            font-size: clamp(2.5rem, 5vw, 3.8rem);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.03em;
            color: #fff;
            margin-bottom: 20px;
        }

        .hero-subtitle {
            font-size: clamp(1rem, 2vw, 1.2rem);
            color: rgba(255,255,255,0.85);
            max-width: 680px;
            line-height: 1.8;
            margin-bottom: 12px;
        }

        .hero-subtitle-jp {
            font-size: clamp(0.9rem, 1.5vw, 1.05rem);
            color: rgba(255,255,255,0.65);
            max-width: 680px;
            line-height: 1.9;
            margin-bottom: 40px;
            font-family: 'Noto Sans JP', sans-serif;
        }

        .hero-actions { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }

        .hero .btn-secondary {
            color: #fff;
            border-color: rgba(255,255,255,0.4);
        }
        .hero .btn-secondary:hover {
            border-color: #fff;
            color: #fff;
            background: rgba(255,255,255,0.1);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center; gap: 8px;
            background: var(--primary); color: #fff;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600; font-size: 0.95rem;
            transition: var(--transition);
            border: none; cursor: pointer;
        }

        .btn-primary:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(26,63,214,0.3);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center; gap: 8px;
            background: transparent; color: var(--text-primary);
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600; font-size: 0.95rem;
            transition: var(--transition);
            border: 1.5px solid var(--border);
            cursor: pointer;
        }

        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
        }

        /* Section Common */
        .section { padding: 100px 0; }
        .section-alt { background: var(--bg-light); }

        .section-label {
            display: inline-flex;
            align-items: center; gap: 8px;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 16px;
        }

        .section-label::before {
            content: '';
            width: 24px; height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .section-title {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 640px;
            line-height: 1.8;
            margin-bottom: 48px;
        }

        /* About */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 64px;
            align-items: center;
        }

        .about-visual-card {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-lg);
            padding: 48px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .about-visual-card::before {
            content: '';
            position: absolute;
            top: -40%; right: -30%;
            width: 300px; height: 300px;
            background: rgba(255,255,255,0.08);
            border-radius: 50%;
        }

        .about-visual-card h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 16px;
            position: relative;
        }

        .about-visual-card p {
            font-size: 0.95rem;
            opacity: 0.85;
            line-height: 1.8;
            position: relative;
        }

        .about-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 24px;
        }

        .about-stat {
            background: rgba(255,255,255,0.1);
            border-radius: var(--radius);
            padding: 20px;
            text-align: center;
        }

        .about-stat-num { font-size: 1.6rem; font-weight: 800; display: block; }
        .about-stat-label { font-size: 0.75rem; opacity: 0.7; margin-top: 4px; display: block; }

        /* Products */
        .products-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .product-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .product-card:hover {
            border-color: var(--primary);
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

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

        .product-card:hover::before { opacity: 1; }
        .product-card[data-color="green"]::before { background: var(--green); }
        .product-card[data-color="amber"]::before { background: var(--amber); }
        .product-card[data-color="blue"]::before { background: var(--primary); }
        .product-card[data-color="purple"]::before { background: var(--purple); }
        .product-card[data-color="red"]::before { background: var(--red); }
        .product-card[data-color="teal"]::before { background: var(--teal); }

        .product-icon {
            width: 56px; height: 56px;
            border-radius: 14px;
            display: flex;
            align-items: center; justify-content: center;
            margin-bottom: 20px;
            font-size: 1.5rem;
        }

        .product-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 6px;
            letter-spacing: -0.01em;
        }

        .product-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 600;
            color: var(--text-muted);
            background: var(--bg-light);
            padding: 3px 10px;
            border-radius: 50px;
            margin-bottom: 14px;
        }

        .product-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 16px;
        }

        .product-features {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 16px;
        }

        .product-features li {
            font-size: 0.75rem;
            color: var(--text-secondary);
            background: var(--bg-light);
            padding: 4px 10px;
            border-radius: 50px;
        }

        .product-link {
            display: inline-flex;
            align-items: center; gap: 6px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            transition: var(--transition);
        }

        .product-link:hover { gap: 10px; }

        .product-status {
            display: inline-flex;
            align-items: center; gap: 6px;
            font-size: 0.78rem;
            font-weight: 500;
        }

        .status-dot {
            width: 8px; height: 8px;
            border-radius: 50%;
        }

        .status-active { background: var(--green); }
        .status-dev { background: var(--amber); }
        .status-concept { background: var(--purple); }

        /* Services */
        .services-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .service-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 40px;
            transition: var(--transition);
        }

        .service-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .service-num {
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.1em;
            margin-bottom: 16px;
        }

        .service-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .service-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 16px;
        }

        .service-list { list-style: none; }

        .service-list li {
            font-size: 0.86rem;
            color: var(--text-secondary);
            padding: 7px 0;
            border-bottom: 1px solid #F3F4F6;
            display: flex;
            align-items: center; gap: 10px;
        }

        .service-list li::before {
            content: '';
            width: 6px; height: 6px;
            border-radius: 50%;
            background: var(--primary);
            flex-shrink: 0;
        }

        /* Team */
        .team-card {
            display: grid;
            grid-template-columns: 200px 1fr;
            gap: 48px;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 48px;
            align-items: start;
        }

        .team-photo {
            width: 200px; height: 200px;
            border-radius: var(--radius-lg);
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            display: flex;
            align-items: center; justify-content: center;
            color: #fff;
            font-size: 3rem;
            font-weight: 800;
        }

        .team-name {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .team-role {
            font-size: 0.9rem;
            color: var(--primary);
            font-weight: 600;
            margin-bottom: 16px;
        }

        .team-bio {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 20px;
        }

        .team-career {
            list-style: none;
            margin-bottom: 20px;
        }

        .team-career li {
            font-size: 0.85rem;
            color: var(--text-secondary);
            padding: 6px 0;
            display: flex;
            align-items: flex-start; gap: 12px;
        }

        .career-year {
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--primary);
            white-space: nowrap;
            min-width: 48px;
        }

        .team-links {
            display: flex; gap: 12px;
        }

        .team-links a {
            font-size: 0.82rem;
            color: var(--primary);
            font-weight: 500;
            padding: 6px 14px;
            border: 1px solid var(--primary);
            border-radius: 50px;
            transition: var(--transition);
        }

        .team-links a:hover {
            background: var(--primary);
            color: #fff;
        }

        /* Insights */
        .insights-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .insight-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px;
            transition: var(--transition);
        }

        .insight-card:hover {
            border-color: var(--primary);
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }

        .insight-source {
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            margin-bottom: 12px;
            display: inline-block;
            padding: 3px 10px;
            border-radius: 50px;
        }

        .source-zenn { background: rgba(59,130,246,0.1); color: #3B82F6; }
        .source-sakenavi { background: rgba(245,158,11,0.1); color: #D97706; }
        .source-kanseilink { background: rgba(16,185,129,0.1); color: #059669; }

        .insight-card h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.5;
        }

        .insight-card p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .insight-link {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center; gap: 4px;
        }

        /* FAQ */
        .faq-list { max-width: 800px; }

        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 24px 0;
        }

        .faq-item summary {
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .faq-item summary::-webkit-details-marker { display: none; }

        .faq-item summary::after {
            content: '+';
            font-size: 1.4rem;
            color: var(--primary);
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-item[open] summary::after { content: '-'; }

        .faq-answer {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-top: 16px;
            padding-right: 40px;
        }

        /* Contact */
        .contact-section {
            background: linear-gradient(135deg, var(--bg-dark) 0%, #111936 100%);
            color: #fff;
            padding: 100px 0;
            text-align: center;
        }

        .contact-section .section-label { color: rgba(255,255,255,0.5); }
        .contact-section .section-label::before { background: rgba(255,255,255,0.3); }
        .contact-section .section-title { color: #fff; }
        .contact-section .section-desc { color: rgba(255,255,255,0.6); margin: 0 auto 48px; }

        .contact-emails {
            display: flex;
            justify-content: center;
            gap: 32px;
            margin-top: 40px;
            flex-wrap: wrap;
        }

        .contact-email-card {
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: var(--radius);
            padding: 20px 28px;
            text-align: left;
        }

        .contact-email-label {
            font-size: 0.75rem;
            color: rgba(255,255,255,0.4);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 6px;
        }

        .contact-email-addr {
            font-size: 0.95rem;
            color: rgba(255,255,255,0.9);
            font-weight: 500;
        }

        .contact-address {
            margin-top: 32px;
            font-size: 0.88rem;
            color: rgba(255,255,255,0.5);
        }

        /* Footer */
        .footer {
            background: var(--bg-dark);
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 48px 0;
        }

        .footer-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .footer-logo { font-weight: 700; font-size: 0.95rem; color: rgba(255,255,255,0.8); }

        .footer-links { display: flex; gap: 24px; list-style: none; }

        .footer-links a {
            font-size: 0.82rem;
            color: rgba(255,255,255,0.4);
            transition: var(--transition);
        }

        .footer-links a:hover { color: rgba(255,255,255,0.8); }

        .footer-copy { font-size: 0.78rem; color: rgba(255,255,255,0.3); }

        /* Mobile */
        .mobile-menu-btn {
            display: none;
            background: none; border: none;
            cursor: pointer; padding: 8px;
        }

        .mobile-menu-btn span {
            display: block;
            width: 22px; height: 2px;
            background: var(--text-primary);
            margin: 5px 0;
            transition: var(--transition);
        }

        @media (max-width: 900px) {
            .nav-links, .lang-switch { display: none; }
            .mobile-menu-btn { display: block; }
            .hero { padding: 120px 0 80px; }
            .hero h1 { font-size: 2.2rem; }
            .hero-actions { flex-direction: column; align-items: flex-start; }
            .about-grid { grid-template-columns: 1fr; gap: 40px; }
            .products-grid { grid-template-columns: 1fr; }
            .services-grid { grid-template-columns: 1fr; }
            .insights-grid { grid-template-columns: 1fr; }
            .team-card { grid-template-columns: 1fr; justify-items: center; text-align: center; }
            .team-career li { justify-content: center; }
            .team-links { justify-content: center; }
            .contact-emails { flex-direction: column; align-items: center; }
            .footer-inner { flex-direction: column; gap: 24px; text-align: center; }
            .footer-links { justify-content: center; }
            .container { padding: 0 20px; }
            .section { padding: 72px 0; }
        }

        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(24px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .fade-in { opacity: 0; animation: fadeInUp 0.6s ease forwards; }
        .fade-in-delay-1 { animation-delay: 0.1s; }
        .fade-in-delay-2 { animation-delay: 0.2s; }
        .fade-in-delay-3 { animation-delay: 0.3s; }

        /* Active nav state */
        .nav-links a.active { color: var(--primary); }
        .nav-links a.active::after { width: 100%; }

        /* Page header for inner pages */
        .page-header {
            padding: 140px 0 64px;
            position: relative;
            overflow: hidden;
            background-size: cover;
            background-position: center;
        }
        .page-header::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11,17,32,0.6) 0%, rgba(26,63,214,0.3) 100%);
            z-index: 0;
        }
        .page-header .container { position: relative; z-index: 1; }
        .page-header .section-label { margin-bottom: 16px; color: rgba(255,255,255,0.6); }
        .page-header .section-label::before { background: rgba(255,255,255,0.4); }
        .page-title {
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 800;
            letter-spacing: -0.03em;
            color: #fff;
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .page-desc {
            font-size: 1.05rem;
            color: rgba(255,255,255,0.8);
            max-width: 640px;
            line-height: 1.8;
        }
        .page-header-about { background-image: url('/about-bg.jpg'); }
        .page-header-products { background-image: url('/products-bg.jpg'); }
        .page-header-services { background-image: url('/services-bg.jpg'); }
        .page-header-insights { background-image: url('/insights-bg.jpg'); }
        .page-header-contact { background-image: url('/contact-bg.jpg'); }

        /* Section CTA link */
        .section-cta {
            display: inline-flex;
            align-items: center; gap: 8px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--primary);
            margin-top: 32px;
            transition: var(--transition);
        }
        .section-cta:hover { gap: 12px; }

        /* Vision phases (About page) */
        .vision-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .vision-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            transition: var(--transition);
        }
        .vision-card:hover {
            border-color: var(--primary);
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .vision-phase {
            font-size: 0.72rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.1em;
            text-transform: uppercase;
            margin-bottom: 12px;
        }
        .vision-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .vision-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* Principles (About page) */
        .principles-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .principle-card {
            display: flex;
            gap: 16px;
            padding: 24px;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            transition: var(--transition);
        }
        .principle-card:hover { border-color: var(--primary); }
        .principle-num {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--primary);
            opacity: 0.3;
            line-height: 1;
            flex-shrink: 0;
        }
        .principle-card h4 {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .principle-card p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        @media (max-width: 900px) {
            .vision-grid { grid-template-columns: 1fr; }
            .principles-grid { grid-template-columns: 1fr; }
            .page-header { padding: 120px 0 48px; }
        }