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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background-color: #000;
            color: #fff;
            min-height: 100vh;
        }

        /* ヘッダー */
        header {
            position: sticky;
            top: 0;
            z-index: 10;
            background-color: rgba(0, 0, 0, 0.8);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid #1f2937;
        }

        .header-content {
            max-width: 1280px;
            margin: 0 auto;
            padding: 1.5rem 1rem;
        }

        h1 {
            font-size: 1.5625rem;
            font-weight: bold;
            margin-bottom: 0.25rem;
        }

        .header-subtitle {
            font-size: 1.125rem;
            color: #9ca3af;
        }

        /* カテゴリーフィルター */
        .filter-container {
            position: sticky;
            top: 89px;
            z-index: 9;
            background-color: #111827;
            border-bottom: 1px solid #1f2937;
        }

        .filter-content {
            max-width: 1280px;
            margin: 0 auto;
            padding: 1rem;
        }

        .filter-buttons {
            display: flex;
            gap: 0.5rem;
            overflow-x: auto;
            padding-bottom: 0.5rem;
        }

        .filter-buttons::-webkit-scrollbar {
            display: none;
        }

        .filter-btn {
            padding: 0.5rem 1.5rem;
            border-radius: 9999px;
            font-size: 0.875rem;
            font-weight: 500;
            white-space: nowrap;
            border: none;
            cursor: pointer;
            transition: all 0.2s;
        }

        .filter-btn.active {
            background-color: #fff;
            color: #000;
        }

        .filter-btn:not(.active) {
            background-color: #1f2937;
            color: #d1d5db;
        }

        .filter-btn:not(.active):hover {
            background-color: #374151;
        }

        /* グリッド */
        main {
            max-width: 1280px;
            margin: 0 auto;
            padding: 2rem 1rem;
        }
h2 {
            font-size: 1.5rem;
            font-weight: bold;
            margin-bottom: 0.5rem;
        }

        .portfolio-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 1.5rem;
        }

        .portfolio-card {
            background-color: #111827;
            border-radius: 0.75rem;
            overflow: hidden;
            cursor: pointer;
            transition: transform 0.2s;
        }

        .portfolio-card:hover {
            transform: translateY(-4px);
        }

        .portfolio-card img {
            width: 100%;
            height: 240px;
            object-fit: cover;
        }

        .portfolio-card-content {
            padding: 1rem;
        }

        .portfolio-card-title {
            font-size: 1.125rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }

        .portfolio-card-category {
            font-size: 0.75rem;
            color: #9ca3af;
            margin-bottom: 0.5rem;
        }

        .portfolio-card-description {
            font-size: 0.875rem;
            color: #d1d5db;
        }

        /* プロフィール */
        .profile-section {
            background-color: rgba(17, 24, 39, 0.5);
            border-top: 1px solid #1f2937;
            border-bottom: 1px solid #1f2937;
        }

        .profile-content {
            max-width: 1280px;
            margin: 0 auto;
            padding: 3rem 1rem;
        }

        .profile-header {
            display: flex;
            align-items: center;
            gap: 2rem;
            margin-bottom: 3rem;
        }

        .profile-image {
            flex-shrink: 0;
            width: 128px;
            height: 128px;
            border-radius: 50%;
            overflow: hidden;
            border: 0px solid rgba(255, 255, 255, 0.1);
        }

        .profile-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .profile-basic h1 {
            font-size: 1.5rem;
            margin-bottom: 0.5rem;
        }

        .profile-role {
            font-size: 1rem;
            color: #9ca3af;
            margin-bottom: 0.7rem;
        }

        .profile-bio {
            font-size: 0.875rem;
            color: #9ca3af;
            line-height: 1.6;
        }

        .profile-details {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
        }

        .profile-section-item {
            background-color: rgba(255, 255, 255, 0.05);
            padding: 1.5rem;
            border-radius: 0.5rem;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .profile-section-title {
            font-size: 1.125rem;
            font-weight: 600;
            margin-bottom: 1rem;
            color: #fff;
        }

        .profile-section-content {
            font-size: 0.875rem;
            color: #9ca3af;
            line-height: 1.8;
        }

        .profile-section-content ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .profile-section-content li {
            padding: 0.25rem 0;
            position: relative;
            padding-left: 1.25rem;
        }

        .profile-section-content li:before {
            content: "•";
            position: absolute;
            left: 0;
            color: #9ca3af;
        }

        .profile-links {
            display: flex;
            gap: 0.75rem;
            flex-wrap: wrap;
        }

        .profile-link {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.5rem 1rem;
            background-color: rgba(255, 255, 255, 0.1);
            border-radius: 9999px;
            color: #fff;
            text-decoration: none;
            font-size: 0.875rem;
            transition: background-color 0.2s;
        }

        .profile-link:hover {
            background-color: rgba(255, 255, 255, 0.2);
        }

        @media (max-width: 640px) {
            .profile-header {
                flex-direction: column;
                text-align: center;
            }

            .profile-details {
                grid-template-columns: 1fr;
            }
        }

        /* フッター */
        footer {
            background-color: #111827;
            color: #fff;
            padding: 3rem 1rem;
        }

        .footer-content {
            max-width: 1280px;
            margin: 0 auto;
            text-align: center;
        }

        .footer-title {
            font-size: 1.5rem;
            font-weight: bold;
            margin-bottom: 0.5rem;
        }

        .footer-description {
            color: #9ca3af;
            font-size: 0.875rem;
            margin-bottom: 1.5rem;
        }

        .contact-btn {
            display: inline-block;
            padding: 0.75rem 1.5rem;
            background-color: #fff;
            color: #000;
            border-radius: 9999px;
            font-weight: 500;
            text-decoration: none;
            border: none;
            cursor: pointer;
            transition: background-color 0.2s;
        }

        .contact-btn:hover {
            background-color: #f3f4f6;
        }

        .footer-copyright {
            margin-top: 3rem;
            font-size: 0.875rem;
            color: #6b7280;
        }

        /* ライトボックス */
        .lightbox {
            display: none;
            position: fixed;
            inset: 0;
            z-index: 50;
            background-color: rgba(0, 0, 0, 0.95);
            align-items: center;
            justify-content: center;
        }

        .lightbox.active {
            display: flex;
        }

        .lightbox-content {
            position: relative;
            max-width: 90vw;
            max-height: 90vh;
			display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }

        .lightbox-image {
            max-width: 100%;
            max-height: 75vh;
            object-fit: contain;
        }

        .lightbox-close {
            position: absolute;
            top: 1rem;
            right: 1rem;
            width: 2.5rem;
            height: 2.5rem;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.1);
            border: none;
            color: #fff;
            font-size: 1.5rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .lightbox-close:hover {
            background-color: rgba(255, 255, 255, 0.2);
        }

        .lightbox-nav {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 2.5rem;
            height: 2.5rem;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.1);
            border: none;
            color: #fff;
            font-size: 1.5rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .lightbox-nav:hover {
            background-color: rgba(255, 255, 255, 0.2);
        }

        .lightbox-prev {
            left: 1rem;
        }

        .lightbox-next {
            right: 1rem;
        }

        .lightbox-info {
            position: static;
            margin-top: 1rem;
            background-color: rgba(0, 0, 0, 0.7);
            padding: 1rem 1.5rem;
            border-radius: 0.5rem;
            text-align: center;
            max-width: 800px;
            width: 100%;
        }

        .lightbox-title {
            font-size: 1.25rem;
            margin-bottom: 0.25rem;
			
        }

        .lightbox-category {
            font-size: 0.875rem;
            color: #9ca3af;
        }

        .lightbox-slideshow-btn {
            position: absolute;
            top: 1rem;
            left: 50%;
            transform: translateX(-50%);
            padding: 0.5rem 1.25rem;
            border-radius: 9999px;
            background-color: rgba(255, 255, 255, 0.1);
            border: none;
            color: #fff;
            font-size: 0.875rem;
            font-weight: 500;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            transition: background-color 0.2s;
        }

        .lightbox-slideshow-btn:hover {
            background-color: rgba(255, 255, 255, 0.2);
        }

        .lightbox-slideshow-btn.playing {
            background-color: rgba(239, 68, 68, 0.3);
        }

        .lightbox-slideshow-btn.playing:hover {
            background-color: rgba(239, 68, 68, 0.4);
        }

        /* コンタクトフォームモーダル */
        .modal {
            display: none;
            position: fixed;
            inset: 0;
            z-index: 50;
            background-color: rgba(0, 0, 0, 0.8);
            backdrop-filter: blur(4px);
            align-items: center;
            justify-content: center;
            padding: 1rem;
        }

        .modal.active {
            display: flex;
        }

        .modal-content {
            background-color: #111827;
            border-radius: 1rem;
            width: 100%;
            max-width: 48rem;
            max-height: 90vh;
            overflow: hidden;
        }

        .modal-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.5rem;
            border-bottom: 1px solid #1f2937;
        }

        .modal-title {
            font-size: 1.5rem;
            font-weight: bold;
        }

        .modal-close {
            width: 2rem;
            height: 2rem;
            border-radius: 50%;
            background-color: transparent;
            border: none;
            color: #9ca3af;
            font-size: 1.5rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .modal-close:hover {
            background-color: #1f2937;
            color: #fff;
        }

        .modal-body {
            padding: 1.5rem;
        }

        .info-box {
            background-color: rgba(31, 41, 55, 0.5);
            border: 1px solid #374151;
            border-radius: 0.5rem;
            padding: 1rem;
            margin-bottom: 1rem;
        }

        .info-box p {
            font-size: 0.875rem;
            color: #9ca3af;
            line-height: 1.5;
        }

        .iframe-container {
            width: 100%;
            height: 600px;
            background-color: #fff;
            border-radius: 0.5rem;
            overflow: hidden;
        }

        .iframe-container iframe {
            width: 100%;
            height: 100%;
            border: none;
        }

        .instructions-box {
            margin-top: 1rem;
            padding: 1rem;
            background-color: rgba(31, 41, 55, 0.3);
            border: 1px solid #374151;
            border-radius: 0.5rem;
        }

        .instructions-box p {
            font-size: 0.75rem;
            color: #6b7280;
            line-height: 1.6;
        }

        .instructions-box strong {
            display: block;
            margin-bottom: 0.5rem;
        }

        @media (max-width: 640px) {
            h1 {
                font-size: 1.5rem;
            }

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

            .profile-image {
                width: 96px;
                height: 96px;
            }

            .filter-container {
                top: 77px;
            }
        }