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

        :root {
            --core-blue: #00d4ff;
            --core-purple: #a855f7;
            --core-pink: #ec4899;
            --dark-bg: #0a0a0f;
            --dark-card: #1a1a2e;
            --text-primary: #ffffff;
            --text-secondary: #a0a0b8;
        }

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            background: var(--dark-bg);
            color: var(--text-primary);
            overflow-x: hidden;
            line-height: 1.6;
        }

        /* ヘッダー */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 1.5rem 5%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: all 0.3s ease;
        }

        header.scrolled {
            background: rgba(10, 10, 15, 0.8);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0, 212, 255, 0.1);
        }

        .logo {
            font-size: 1.5rem;
            font-weight: 700;
            background: linear-gradient(135deg, var(--core-blue), var(--core-purple));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: 1px;
        }

        nav {
            display: flex;
            gap: 2.5rem;
            align-items: center;
        }

        nav a {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 0.95rem;
            font-weight: 500;
            transition: all 0.3s ease;
            position: relative;
        }

        nav a:hover {
            color: var(--core-blue);
        }

        nav a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--core-blue);
            transition: width 0.3s ease;
        }

        nav a:hover::after {
            width: 100%;
        }

        .cta-button {
            padding: 0.7rem 1.8rem;
            background: linear-gradient(135deg, var(--core-blue), var(--core-purple));
            border: none;
            border-radius: 50px;
            color: white;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
        }

        .cta-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(0, 212, 255, 0.4);
        }

        /* Canvas背景 */
        #universe-canvas {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 1;
            pointer-events: none;
        }

        /* Hero Section */
        .hero {
            position: relative;
            height: 100vh;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            text-align: center;
            padding: 0 5%;
            z-index: 10;
        }

        .hero-content {
            max-width: 900px;
            animation: fadeInUp 1s ease-out;
        }

        .hero h1 {
            font-size: clamp(3rem, 8vw, 6rem);
            font-weight: 800;
            margin-bottom: 1.5rem;
            background: linear-gradient(135deg, #ffffff, var(--core-blue), var(--core-purple));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: 2px;
        }

        .hero-subtitle {
            font-size: clamp(1.2rem, 2.5vw, 1.8rem);
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
            font-weight: 300;
        }

        .hero-description {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 3rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.8;
        }

        .scroll-indicator {
            position: absolute;
            bottom: 3rem;
            left: 50%;
            transform: translateX(-50%);
            animation: bounce 2s infinite;
            cursor: pointer;
        }

        .scroll-indicator::before {
            content: '↓';
            font-size: 2rem;
            color: var(--core-blue);
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes bounce {
            0%, 100% { transform: translateX(-50%) translateY(0); }
            50% { transform: translateX(-50%) translateY(-10px); }
        }

        /* セクション共通 */
        section {
            position: relative;
            padding: 8rem 5%;
            z-index: 10;
        }

        .section-title {
            font-size: clamp(2.5rem, 5vw, 4rem);
            font-weight: 700;
            text-align: center;
            margin-bottom: 1rem;
            background: linear-gradient(135deg, var(--core-blue), var(--core-purple));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .section-subtitle {
            text-align: center;
            color: var(--text-secondary);
            font-size: 1.2rem;
            margin-bottom: 4rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        /* Services Section */
        .filter-tabs {
            display: flex;
            justify-content: center;
            gap: 1rem;
            margin-bottom: 3rem;
            flex-wrap: wrap;
        }

        .filter-tab {
            padding: 0.6rem 1.5rem;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 50px;
            color: var(--text-secondary);
            cursor: pointer;
            transition: all 0.3s ease;
            font-weight: 500;
        }

        .filter-tab:hover, .filter-tab.active {
            background: rgba(0, 212, 255, 0.1);
            border-color: var(--core-blue);
            color: var(--core-blue);
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 2.5rem;
            max-width: 1400px;
            margin: 0 auto;
        }

        .service-card {
            background: rgba(26, 26, 46, 0.6);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            padding: 2rem;
            transition: all 0.4s ease;
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(168, 85, 247, 0.1));
            opacity: 0;
            transition: opacity 0.4s ease;
            pointer-events: none;
        }

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

        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 60px rgba(0, 212, 255, 0.3);
            border-color: var(--core-blue);
        }

        .service-thumbnail {
            width: 100%;
            height: 200px;
            background: linear-gradient(135deg, rgba(0, 212, 255, 0.2), rgba(168, 85, 247, 0.2));
            border-radius: 12px;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 3rem;
            overflow: hidden;
            position: relative;
        }

        .service-thumbnail::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle, rgba(0, 212, 255, 0.3), transparent);
            transform: translate(-50%, -50%) scale(0);
            transition: transform 0.6s ease;
        }

        .service-card:hover .service-thumbnail::after {
            transform: translate(-50%, -50%) scale(1.5);
        }

        .service-badge {
            position: absolute;
            top: 1rem;
            right: 1rem;
            padding: 0.4rem 0.8rem;
            background: linear-gradient(135deg, var(--core-blue), var(--core-purple));
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .service-card h3 {
            font-size: 1.5rem;
            margin-bottom: 0.8rem;
            color: var(--text-primary);
        }

        .service-card p {
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
            line-height: 1.6;
        }

        .service-link {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            color: var(--core-blue);
            text-decoration: none;
            font-weight: 600;
            transition: gap 0.3s ease;
        }

        .service-link:hover {
            gap: 1rem;
        }

        /* Vision Section */
        .vision-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2.5rem;
            max-width: 1200px;
            margin: 0 auto;
        }

        .vision-card {
            background: rgba(26, 26, 46, 0.6);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            padding: 3rem 2rem;
            text-align: center;
            transition: all 0.4s ease;
        }

        .vision-card:hover {
            transform: translateY(-5px);
            border-color: var(--core-blue);
        }

        .vision-icon {
            font-size: 3rem;
            margin-bottom: 1.5rem;
            display: inline-block;
        }

        .vision-card h3 {
            font-size: 1.8rem;
            margin-bottom: 1rem;
            background: linear-gradient(135deg, var(--core-blue), var(--core-purple));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

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

        /* Contact Section */
        .contact-content {
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
        }

        .contact-email {
            font-size: 1.5rem;
            color: var(--core-blue);
            margin-bottom: 3rem;
            display: inline-block;
        }

        .contact-links {
            display: flex;
            justify-content: center;
            gap: 2rem;
            flex-wrap: wrap;
            margin-bottom: 2rem;
        }

        .contact-links a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .contact-links a:hover {
            color: var(--core-blue);
        }

        .operator-info {
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-top: 2rem;
        }

        /* Footer */
        footer {
            position: relative;
            padding: 3rem 5%;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            text-align: center;
            z-index: 10;
        }

        .footer-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 2rem;
            max-width: 1400px;
            margin: 0 auto;
        }

        .footer-brand {
            font-size: 1.2rem;
            font-weight: 700;
            background: linear-gradient(135deg, var(--core-blue), var(--core-purple));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .footer-social {
            display: flex;
            gap: 1.5rem;
        }

        .footer-social a {
            color: var(--text-secondary);
            font-size: 1.5rem;
            transition: color 0.3s ease;
        }

        .footer-social a:hover {
            color: var(--core-blue);
        }

        .copyright {
            width: 100%;
            margin-top: 2rem;
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        /* モバイル対応 */
        @media (max-width: 768px) {
            nav {
                gap: 1rem;
                font-size: 0.85rem;
            }

            .cta-button {
                padding: 0.6rem 1.2rem;
                font-size: 0.85rem;
            }

            section {
                padding: 5rem 5%;
            }

            .services-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .filter-tabs {
                gap: 0.5rem;
            }

            .filter-tab {
                padding: 0.5rem 1rem;
                font-size: 0.85rem;
            }

            .footer-content {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ローディングアニメーション */
        @keyframes pulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.5; }
        }