/* CSS Document */

        :root {
            --primary-navy: #1a2a4a;
            --primary-orange: #f97316;
            --bg-light: #f8fafc;
            --text-dark: #1e293b;
            --text-light: #64748b;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Noto Sans JP', sans-serif;
            color: var(--text-dark);
            line-height: 1.7;
            overflow-x: hidden;
        }

        /* Header */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background: rgba(26, 42, 74, 0.95);
            backdrop-filter: blur(10px);
            z-index: 1000;
            padding: 1rem 2rem;
            transition: all 0.3s ease;
        }

        header.scrolled {
            box-shadow: 0 4px 20px rgba(0,0,0,0.1);
        }

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

        .logo {
            font-size: 1.5rem;
            font-weight: 900;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .logo img {
            height: 40px;
            width: auto;
        }

        .nav-links {
            display: flex;
            gap: 2rem;
            list-style: none;
        }

        .nav-links a {
            color: white;
            text-decoration: none;
            font-size: 0.9rem;
            font-weight: 500;
            transition: color 0.3s;
            white-space: nowrap;
        }

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

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }

        /* Hero Section */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }

        .hero-bg-video {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            z-index: 0;
        }

        .hero-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.2);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            color: white;
            padding: 2rem;
            max-width: 900px;
        }

        .hero-title {
            font-size: clamp(1.8rem, 4vw, 3.2rem);
            font-weight: 900;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            text-shadow: 2px 2px 10px rgba(0,0,0,0.5);
            white-space: nowrap;
        }

        .hero-subtitle {
            font-size: clamp(1rem, 2.5vw, 1.3rem);
            margin-bottom: 3rem;
            font-weight: 500;
            text-shadow: 1px 1px 5px rgba(0,0,0,0.5);
        }

        .cta-button {
            display: inline-block;
            background: var(--primary-orange);
            color: white;
            padding: 1.2rem 3rem;
            font-size: 1.2rem;
            font-weight: 700;
            text-decoration: none;
            border-radius: 50px;
            transition: all 0.3s;
            box-shadow: 0 10px 30px rgba(249, 115, 22, 0.4);
        }

        .cta-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 40px rgba(249, 115, 22, 0.6);
        }

        /* Section Common Styles */
        section {
            padding: 5rem 2rem;
        }

        .section-title {
            font-size: clamp(2rem, 4vw, 2.8rem);
            font-weight: 900;
            text-align: center;
            margin-bottom: 3rem;
            color: var(--primary-navy);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
        }

        /* Company Section */
        .company {
            background: white;
        }

        .company-table {
            width: 100%;
            background: white;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 4px 20px rgba(0,0,0,0.08);
            margin-top: 3rem;
        }

        .company-table tr {
            border-bottom: 1px solid #e2e8f0;
        }

        .company-table tr:last-child {
            border-bottom: none;
        }

        .company-table th {
            background: var(--primary-navy);
            color: white;
            padding: 1.5rem;
            text-align: left;
            font-weight: 700;
            width: 200px;
            vertical-align: middle;
        }

        .company-table td {
            padding: 1.5rem;
            color: var(--text-dark);
            vertical-align: middle;
        }

        .company-intro {
            text-align: center;
            margin-bottom: 3rem;
            font-size: 1.1rem;
            color: var(--text-light);
            line-height: 1.8;
        }

        /* Features Section */
        .features {
            background: var(--bg-light);
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }

        .feature-card {
            background: white;
            padding: 2.5rem;
            border-radius: 20px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.08);
            transition: all 0.3s;
            border-top: 5px solid var(--primary-orange);
        }

        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 50px rgba(0,0,0,0.15);
        }

        .feature-icon {
            width: 100%;
            height: 200px;
            margin-bottom: 1.5rem;
            display: block;
            object-fit: cover;
            border-radius: 12px;
        }

        .features-hero-image {
            width: 100%;
            max-width: 1000px;
            height: auto;
            margin: 0 auto 3rem;
            border-radius: 16px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.1);
            display: block;
        }

        .feature-card h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--primary-navy);
        }

        .feature-card p {
            color: var(--text-light);
            line-height: 1.8;
        }

        /* Timeline Section */
        .timeline-section {
            background: var(--primary-navy);
            color: white;
        }

        .timeline-section .section-title {
            color: white;
        }

        .timeline-hero-image {
            width: 100%;
            max-width: 1000px;
            height: auto;
            margin: 0 auto 3rem;
            border-radius: 16px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.3);
            display: block;
        }

        .timeline {
            max-width: 800px;
            margin: 0 auto;
            position: relative;
            padding: 2rem 0;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--primary-orange);
            transform: translateX(-50%);
        }

        .timeline-item {
            display: flex;
            margin-bottom: 3rem;
            position: relative;
            opacity: 0;
            transform: translateY(30px);
            transition: all 0.6s;
        }

        .timeline-item.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .timeline-item:nth-child(odd) {
            flex-direction: row;
        }

        .timeline-item:nth-child(even) {
            flex-direction: row-reverse;
        }

        .timeline-time {
            flex: 1;
            text-align: right;
            padding-right: 2rem;
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--primary-orange);
        }

        .timeline-item:nth-child(even) .timeline-time {
            text-align: left;
            padding-left: 2rem;
            padding-right: 0;
        }

        .timeline-dot {
            width: 20px;
            height: 20px;
            background: var(--primary-orange);
            border-radius: 50%;
            border: 4px solid var(--primary-navy);
            position: relative;
            z-index: 2;
            flex-shrink: 0;
        }

        .timeline-content {
            flex: 1;
            padding-left: 2rem;
            background: rgba(255,255,255,0.1);
            padding: 1.5rem;
            border-radius: 12px;
            backdrop-filter: blur(10px);
        }

        .timeline-item:nth-child(even) .timeline-content {
            padding-right: 2rem;
            padding-left: 1.5rem;
        }

        .timeline-content h4 {
            font-size: 1.1rem;
            margin-bottom: 0.5rem;
            color: white;
        }

        /* Voices Section */
        .voices {
            background: white;
        }

        .voices-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 3rem;
        }

        .voice-card {
            background: var(--bg-light);
            padding: 2.5rem;
            border-radius: 20px;
            position: relative;
            box-shadow: 0 4px 20px rgba(0,0,0,0.08);
            transition: all 0.3s;
        }

        .voice-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 40px rgba(0,0,0,0.12);
        }

        .voice-card::before {
            content: '"';
            position: absolute;
            top: -10px;
            left: 20px;
            font-size: 6rem;
            color: var(--primary-orange);
            opacity: 0.3;
            font-family: Georgia, serif;
            line-height: 1;
        }

        .voice-profile {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 1.5rem;
        }

        .voice-avatar {
            width: 70px;
            height: 70px;
            border-radius: 50%;
            background: #e2e8f0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            color: white;
            flex-shrink: 0;
            object-fit: cover;
			object-position: center 20%; 
            border: 3px solid var(--primary-orange);
        }

        .voice-info h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--primary-navy);
            margin-bottom: 0.3rem;
        }

        .voice-info p {
            font-size: 0.9rem;
            color: var(--text-light);
        }

        .voice-text {
            color: var(--text-dark);
            line-height: 1.9;
            font-size: 1rem;
        }

        /* Requirements Section */
        .requirements {
            background: var(--bg-light);
        }

        .requirements-table {
            width: 100%;
            background: white;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 4px 20px rgba(0,0,0,0.08);
            margin-bottom: 2rem;
        }

        .requirements-table tr {
            border-bottom: 1px solid #e2e8f0;
        }

        .requirements-table tr:last-child {
            border-bottom: none;
        }

        .requirements-table th {
            background: var(--primary-navy);
            color: white;
            padding: 1.5rem;
            text-align: left;
            font-weight: 700;
            width: 200px;
        }

        .requirements-table td {
            padding: 1.5rem;
            color: var(--text-dark);
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-orange), #fb923c);
            color: white;
            text-align: center;
        }

        .cta-section .section-title {
            color: white;
        }

        .cta-subtitle {
            font-size: 1.2rem;
            margin-bottom: 3rem;
            opacity: 0.95;
        }

        .cta-buttons {
            display: flex;
            gap: 2rem;
            justify-content: center;
            flex-wrap: wrap;
        }

        .cta-btn {
            background: white;
            color: var(--primary-orange);
            padding: 1.5rem 3rem;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 700;
            font-size: 1.1rem;
            transition: all 0.3s;
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
            display: inline-flex;
            align-items: center;
            gap: 0.8rem;
        }

        .cta-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 40px rgba(0,0,0,0.3);
        }

        .cta-note {
            margin-top: 2rem;
            font-size: 0.95rem;
            opacity: 0.9;
        }

        /* Footer */
        footer {
            background: var(--primary-navy);
            color: white;
            padding: 3rem 2rem 2rem;
            text-align: center;
        }

        .footer-content {
            max-width: 800px;
            margin: 0 auto;
        }

        .footer-logo {
            margin-bottom: 1.5rem;
        }

        .footer-logo img {
            height: 50px;
            width: auto;
        }

        .footer-info {
            margin-bottom: 2rem;
            line-height: 1.8;
        }

        .footer-info a {
            color: var(--primary-orange);
            text-decoration: none;
        }

        .footer-info a:hover {
            text-decoration: underline;
        }

        .footer-copyright {
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.2);
            font-size: 0.9rem;
            opacity: 0.8;
        }

        /* Back to Top Button */
        .back-to-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            background: var(--primary-orange);
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            text-decoration: none;
            opacity: 0;
            pointer-events: none;
            transition: all 0.3s;
            box-shadow: 0 4px 20px rgba(249, 115, 22, 0.4);
            z-index: 999;
        }

        .back-to-top.visible {
            opacity: 1;
            pointer-events: all;
        }

        .back-to-top:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 30px rgba(249, 115, 22, 0.6);
        }

        /* Animation Classes */
        .fade-in {
            opacity: 0;
            transform: translateY(30px);
            transition: all 0.6s ease;
        }

        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* Responsive Design */
        @media (max-width: 1024px) {
            .timeline::before {
                left: 30px;
            }

            .timeline-item {
                flex-direction: row !important;
            }

            .timeline-time {
                flex: 0 0 80px;
                text-align: left;
                padding-right: 1rem;
                padding-left: 0;
                font-size: 1.1rem;
            }

            .timeline-content {
                padding-left: 1.5rem;
            }

            .timeline-item:nth-child(even) .timeline-time {
                text-align: left;
                padding-left: 0;
            }
        }

        @media (max-width: 768px) {
            header {
                padding: 1rem;
            }

            .nav-links {
                position: fixed;
                top: 60px;
                left: 0;
                right: 0;
                background: var(--primary-navy);
                flex-direction: column;
                padding: 2rem;
                gap: 1rem;
                transform: translateX(-100%);
                transition: transform 0.3s;
            }

            .nav-links.active {
                transform: translateX(0);
            }

            .mobile-menu-btn {
                display: block;
            }

            section {
                padding: 3rem 1.5rem;
            }

            .features-grid,
            .voices-grid {
                grid-template-columns: 1fr;
            }

            .company-table th {
                width: 120px;
                font-size: 0.9rem;
                padding: 1rem;
            }

            .company-table td {
                padding: 1rem;
                font-size: 0.9rem;
            }

            .requirements-table th {
                width: 120px;
                font-size: 0.9rem;
                padding: 1rem;
            }

            .requirements-table td {
                padding: 1rem;
                font-size: 0.9rem;
            }

            .cta-buttons {
                flex-direction: column;
                align-items: stretch;
            }

            .timeline::before {
                left: 20px;
            }

            .timeline-time {
                flex: 0 0 60px;
                font-size: 1rem;
            }

            .back-to-top {
                width: 45px;
                height: 45px;
                bottom: 1rem;
                right: 1rem;
            }
        }