html {
            width: 100%;
            box-sizing: border-box;
        }

        :root {
            /* プライマリ：紺→ニュートラルグレー */
            --primary-color: #2c3e50;
            --primary-light: #ecf0f1;
            --primary-lighter: #f8f9fa;

            /* アクセントカラー：鮮やかなカラフル */
            --accent-cyan: #00d4ff;
            --accent-purple: #9b59b6;
            --accent-red: #e74c3c;
            --accent-amber: #f39c12;
            --accent-teal: #1abc9c;
            --accent-pink: #ff6b9d;
            --accent-blue-light: #3498db;
            --accent-orange: #e67e22;

            /* グラデーション定義 */
            --gradient-rainbow: linear-gradient(135deg,
                #00d4ff 0%, #9b59b6 33%, #e74c3c 66%, #f39c12 100%);
            --gradient-cool: linear-gradient(135deg,
                #00d4ff 0%, #1abc9c 100%);
            --gradient-warm: linear-gradient(135deg,
                #e74c3c 0%, #f39c12 100%);
            --gradient-purple: linear-gradient(135deg,
                #9b59b6 0%, #00d4ff 100%);
            --gradient-premium: linear-gradient(135deg,
                #3498db 0%, #2980b9 100%);
            --gradient-multicolor: linear-gradient(90deg,
                #00d4ff 0%, #9b59b6 33%, #e74c3c 66%, #f39c12 100%);
            --gradient-hybrid: linear-gradient(135deg,
                #00d4ff 0%, #1abc9c 50%, #3498db 100%);

            /* 背景カラー：明るく */
            --light-bg: #ffffff;
            --section-bg: #f8f9fa;
            --card-bg: #ffffff;

            /* テキストカラー */
            --text-color: #2c3e50;
            --text-secondary: #7f8c8d;
            --text-light: #95a5a6;

            /* シャドウ：ソフトに */
            --shadow-1: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-2: 0 4px 16px rgba(0, 0, 0, 0.06);
            --shadow-3: 0 8px 32px rgba(0, 0, 0, 0.08);
            --shadow-color-cyan: 0 4px 20px rgba(0, 212, 255, 0.25);
            --shadow-color-purple: 0 4px 20px rgba(155, 89, 182, 0.25);
            --shadow-color-orange: 0 4px 20px rgba(230, 126, 34, 0.3);

            /* 旧変数（互換性のため残す） */
            --highlight-color: #d35400;
            --success-color: #27ae60;
            --secondary-color: #2c3e50;
            --border-color: #e8ecef;
            --accent-color: #3498db;
        }

        /* ベーススタイル */
        body {
            font-family: 'Noto Sans JP', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            margin: 0;
            padding: 0;
            width: 100%;
            background-color: var(--light-bg);
            color: var(--text-color);
            line-height: 1.8;
            font-weight: 400;
            letter-spacing: 0.02em;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            box-sizing: border-box;
        }

        h1, h2, h3, h4, h5, h6 {
            font-family: 'Inter', 'Noto Sans JP', sans-serif;
            color: #2c3e50;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.01em;
            margin-top: 0;
        }

        h2 {
            font-size: 2rem;
            font-weight: 600;
            text-align: center;
            margin-bottom: 5rem;
            position: relative;
            padding-bottom: 1rem;
        }

        h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 100px;
            height: 4px;
            background: var(--gradient-rainbow);
            border-radius: 2px;
        }

        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }

        h4 {
            font-size: 1.2rem;
            font-weight: 600;
        }

        p {
            font-weight: 400;
            line-height: 1.7;
            letter-spacing: 0.02em;
            margin-bottom: 1.2rem;
        }
        
        a {
            text-decoration: none;
        }

        /* ナビゲーション */
        nav {
            position: fixed;
            width: 100%;
            max-width: 100vw;
            top: 0;
            left: 0;
            z-index: 1000;
            padding: 0.2rem 0;
            box-sizing: border-box;
            overflow-x: hidden;

            /* 濃いグレーベースのガラスモーフィズム */
            background: linear-gradient(135deg,
                rgba(44, 62, 80, 0.95) 0%,
                rgba(52, 73, 94, 0.92) 100%
            );
            backdrop-filter: blur(20px) saturate(200%);
            -webkit-backdrop-filter: blur(20px) saturate(200%);

            /* カラフルなボーダー */
            border-bottom: 3px solid transparent;
            border-image: linear-gradient(90deg,
                #00d4ff 0%, #9b59b6 33%, #e74c3c 66%, #f39c12 100%
            ) 1;

            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.05),
                        0 1px 3px rgba(0, 0, 0, 0.02);

            will-change: background-color, backdrop-filter;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* ナビゲーション部分のスタイルを更新 */
        .nav-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0.1rem 0;
            box-sizing: border-box;
        }

        .nav-logo {
            display: block;
        }

        .nav-logo img {
            height: 60px;
            width: auto;
            display: block;
        }

        /* ハンバーガーメニューボタン */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            z-index: 1001;
        }

        .hamburger span {
            display: block;
            width: 25px;
            height: 3px;
            background-color: #ffffff;
            border-radius: 2px;
            transition: all 0.3s ease;
            pointer-events: none;
        }

        .hamburger.active span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }

        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.active span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }

        @media (max-width: 768px) {
            nav {
                border-image: none !important;
                border-bottom: 3px solid #00d4ff !important;
            }

            .nav-logo img {
                height: 35px;
            }

            .nav-content {
                padding: 0.1rem 1rem;
                width: 100%;
            }

            /* ハンバーガーメニューを表示 */
            .hamburger {
                display: flex;
            }

            /* モバイルではnav-linksを非表示（モバイルメニューダイアログを使用） */
            .nav-links {
                display: none;
            }
        }

        /* デスクトップ用ナビゲーションスタイル */
        @media (min-width: 769px) {
            .nav-links {
                display: flex;
                align-items: center;
            }

            .directory-menu, .page-menu {
                display: flex;
                gap: 1.5rem;
            }

            .menu-separator {
                width: 1px;
                height: 24px;
                background-color: rgba(255, 255, 255, 0.3);
                margin: 0 1.5rem;
            }

            .nav-links a {
                color: #ffffff;
                text-decoration: none;
                font-weight: 500;
                transition: all 0.2s ease-out;
                text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
            }

            .nav-links a:hover {
                color: #00d4ff;
            }
            .nav-content {
                height: 70px;
                transition: height 0.3s ease;
            }

            .nav-content.scrolled {
                height: 60px;
            }


            .nav-links a::after {
                content: '';
                position: absolute;
                bottom: 0;
                left: 50%;
                width: 0;
                height: 2px;
                background-color: var(--accent-color);
                transition: all 0.2s ease-out;
                transform: translateX(-50%);
            }

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

            .directory-link {
                background: linear-gradient(135deg,
                    rgba(0, 212, 255, 0.2) 0%,
                    rgba(155, 89, 182, 0.2) 100%
                );
                color: #ffffff;
                padding: 10px;
                margin: 0 0.3rem;
                border-radius: 6px;
                font-weight: 600;
                transition: all 0.2s ease-out;
                backdrop-filter: blur(4px);
            }

            .directory-link:hover {
                background: var(--gradient-rainbow);
                color: white;
                box-shadow: var(--shadow-color-cyan);
                transform: translateY(-2px);
            }
        }

        /* ヒーローセクション */

        .hero {
            min-height: 100vh;

            /* 明るくカラフルなオーバーレイ */
            background:
                linear-gradient(135deg,
                    rgba(0, 212, 255, 0.15) 0%,
                    rgba(155, 89, 182, 0.12) 50%,
                    rgba(231, 76, 60, 0.10) 100%
                ),
                url('../llm/img/hero2.jpg');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;

            display: flex;
            align-items: center;
            justify-content: center;

            position: relative;
            overflow: hidden;
            padding-top: 70px;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background:
                radial-gradient(circle at 20% 20%, rgba(0, 212, 255, 0.25), transparent 40%),
                radial-gradient(circle at 80% 70%, rgba(243, 156, 18, 0.20), transparent 45%),
                radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.05), transparent 60%);
            z-index: 1;
        }

        .hero-content {
            display: flex;
            flex-direction: column;  /* 縦方向配置 */
            align-items: center;  /* 水平中央 */
            justify-content: center;  /* 垂直中央 */
            text-align: center;

            max-width: 900px;
            margin: 0 auto;
            padding: 0 2rem;

            position: relative;
            z-index: 2;
        }

        .hero-text {
            width: 100%;
        }

        .hero-image {
            display: none;  /* 画像非表示 */
        }

        .screenshot {
            max-width: 90%;
            height: auto;
            border-radius: 10px;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        }

        .hero h1 {
            /* 単色の白テキスト */
            color: white;
            font-weight: 800;
            font-size: 3.5rem;
            letter-spacing: -0.03em;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3),
                         0 4px 16px rgba(0, 0, 0, 0.2);
            position: relative;
            z-index: 2;
            margin-bottom: 1.5rem;
            line-height: 1.15;
        }

        .hero h1::after {
            content: '';
            position: absolute;
            bottom: -15px;
            left: 50%;
            transform: translateX(-50%);
            width: 200px;
            height: 5px;
            background: linear-gradient(90deg,
                #00d4ff 0%,
                #9b59b6 50%,
                #e74c3c 100%
            );
            box-shadow: 0 2px 15px rgba(0, 212, 255, 0.6);
            border-radius: 4px;
        }

        .hero .subtitle {
            font-size: 1.8rem;  /* 1.5rem → 1.8rem */
            font-weight: 600;  /* 500 → 600 */
            letter-spacing: -0.01em;

            color: white;
            margin-bottom: 2rem;

            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.25),
                         0 1px 3px rgba(0, 0, 0, 0.15);
        }

        .hero .description {
            font-size: 1.2rem;  /* 1.1rem → 1.2rem */
            font-weight: 400;

            max-width: 800px;
            margin: 0 auto 2.5rem;
            color: rgba(255, 255, 255, 0.95);
            line-height: 1.8;

            text-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
        }


        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto 2rem;
            color: white;
        }

        .cta-button {
            display: inline-block;
            background: var(--gradient-rainbow);
            color: white;
            padding: 1rem 2.5rem;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 500;
            font-size: 1rem;
            letter-spacing: 0.03em;
            transition: all 0.2s ease-out;
            box-shadow: var(--shadow-color-cyan);
            position: relative;
            overflow: hidden;
        }

        .cta-button::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
            transition: all 0.2s ease-out;
        }

        .cta-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(0, 212, 255, 0.4);
            background: linear-gradient(135deg, #00b8d4, #7b1fa2);
        }

        .cta-button:hover::before {
            left: 100%;
        }

        /* ページ内メニュー */
        .page-menu-section {
            background-color: var(--light-bg);
            padding: 1rem 0;
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
            position: sticky;
            top: 70px; /* Match nav height */
            z-index: 900;
        }

        .page-menu-container {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 1.5rem;
        }

        .page-menu-item {
            color: var(--primary-color);
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: all 0.2s ease-out;
            text-decoration: none;
        }

        .page-menu-item:hover {
            background-color: var(--accent-color);
            color: white;
        }

        @media (max-width: 768px) {

            .page-menu-container {
                gap: 0.5rem;
            }

            .page-menu-item {
                padding: 0.3rem 0.6rem;
                font-size: 0.9rem;
            }
        }

        /* レスポンシブ対応 */
        @media (max-width: 768px) {
            nav {
                background: linear-gradient(135deg,
                    rgba(44, 62, 80, 0.95) 0%,
                    rgba(52, 73, 94, 0.92) 100%
                );
                backdrop-filter: blur(15px) saturate(180%);
            }

            .hero {
                min-height: 100vh;
                padding-top: 80px;
            }

            .hero-content {
                padding: 0 1.5rem;
            }

            .hero h1 {
                font-size: 2.5rem;  /* 4rem → 2.5rem */
                font-weight: 800;
                letter-spacing: -0.015em;
            }

            .hero .subtitle {
                font-size: 1.3rem;
                font-weight: 600;
            }

            .hero .description {
                font-size: 1rem;
                line-height: 1.7;
            }
        }
        
        /* お悩みセクション */
        .pain-points {
            padding: 120px 0;
            background-color: var(--card-bg);
        }

        .concerns-wrapper {
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
        }

        .concerns-list {
            margin-bottom: 3rem;
        }

        .concern-item {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 1.5rem;
            padding: 1rem;
            background: var(--section-bg);
            border-radius: 10px;
            border-left: 5px solid var(--accent-cyan);
            box-shadow: var(--shadow-1);
            transition: all 0.2s ease-out;
        }

        .concern-item:hover {
            border-left-color: var(--accent-purple);
            background: linear-gradient(135deg, #f8f0ff 0%, #ffffff 100%);
            box-shadow: var(--shadow-color-purple);
            transform: translateX(10px);
        }

        .concern-item i {
            color: #0066cc;
            font-size: 1.5rem;
            flex-shrink: 0;
        }

        .concern-item p {
            margin: 0;
            font-size: 1.1rem;
            text-align: left;
        }

        .concern-item .highlight {
            color: var(--accent-color);
            font-weight: bold;
        }
        .solution-message {
            margin-top: 3rem;
            padding: 0;  /* パディングを削除 */
            background: linear-gradient(45deg, #f0f9ff, #e1f5fe);
            border-radius: 10px;
            box-shadow: var(--shadow-1);
            overflow: hidden;
        }

        .solution-content {
            display: flex;
            align-items: stretch;
            gap: 0;  /* ギャップを削除 */
        }

        .solution-image {
            flex: 0 0 350px;  /* 幅を350pxに固定 */
            position: relative;
        }

        .business-person {
            width: 100%;
            height: 100%;
            object-fit: cover;
            object-position: center;
        }

        .solution-text {
            flex: 1;
            text-align: center;
            padding: 2rem;  /* テキスト部分にパディングを追加 */
            display: flex;
            flex-direction: column;
            justify-content: center;
        }


        .solution-message i {
            color: #0066cc;
            font-size: 2rem;
            margin-bottom: 1rem;
        }

        .solution-message h3 {
            margin: 0;
            font-size: 1.5rem;
            color: var(--primary-color);
        }

        .emphasis {
            border-bottom: 2px solid var(--accent-color);
            padding-bottom: 2px;
        }

        @media (max-width: 768px) {
            .pain-points {
                padding: 60px 0;
            }

            .concern-item {
                margin: 1rem;
            }

            .concern-item p {
                font-size: 1rem;
            }

            .solution-content {
                flex-direction: column;
            }

            .solution-image {
                flex: 0 0 auto;
                width: 150px;
                margin: 0 auto;
            }
            .solution-message h3 {
                font-size: 1.2rem;
            }
        }

        /* ローカルLLM説明セクション */
        .llm-explanation {
            padding: 120px 0;
            background-color: var(--light-bg);
        }

        .llm-definition {
            text-align: center;
            margin-bottom: 4rem;
        }

        .llm-main-text {
            font-size: 2rem;
            font-weight: bold;
            color: var(--primary-color);
            margin-bottom: 2rem;
            line-height: 1.4;
            position: relative;
            display: inline-block;
        }

        .llm-main-text::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, #87CEEB, #3498db);
        }

        .llm-description {
            max-width: 800px;
            margin: 0 auto;
            font-size: 1.1rem;
            line-height: 1.8;
        }

        .llm-types {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }

        .llm-type-card {
            background: white;
            border-radius: 10px;
            padding: 2rem;
            box-shadow: var(--shadow-1);
        }

        .llm-type-card h3 {
            color: white;
            padding: 0.5rem 1rem;
            border-radius: 5px;
            margin-bottom: 1.5rem;
            text-align: center;
        }

        .llm-type-card.cloud h3 {
            background-color: #87CEEB;
        }

        .llm-type-card.local h3 {
            background-color: #4169E1;
        }

        .type-description {
            text-align: center;
            margin-bottom: 1.5rem;
            font-weight: bold;
        }

        .vendor-logos {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1rem;
            margin-bottom: 1.5rem;
        }

        .logo-item {
            padding: 0.5rem;
            text-align: center;
            border: 1px solid #eee;
            border-radius: 5px;
        }

        .model-list {
            list-style: none;
            padding: 0;
            text-align: center;
        }

        .model-list li {
            margin-bottom: 0.5rem;
            font-size: 1.1rem;
            padding: 0.5rem;
            text-align: center;
            border: 1px solid #eee;
            border-radius: 5px;
        }

        .note {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-top: 1rem;
            text-align: center;
        }

        @media (max-width: 768px) {
            .llm-main-text {
                font-size: 1.5rem;
            }

            .vendor-logos {
                grid-template-columns: 1fr;
            }
        }
        
        
        /* 機能紹介カード */
        .features {
            padding: 120px 0;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }

        .feature-card {
            background: var(--card-bg);
            border-radius: 10px;
            padding: 2.5rem;
            box-shadow: var(--shadow-1);
            transition: all 0.2s ease-out;
            text-align: center;
            border: none;
        }

        .feature-card:nth-child(1) {
            border-top: 4px solid var(--accent-cyan);
        }

        .feature-card:nth-child(2) {
            border-top: 4px solid var(--accent-purple);
        }

        .feature-card:nth-child(3) {
            border-top: 4px solid var(--accent-orange);
        }

        .feature-card:nth-child(4) {
            border-top: 4px solid var(--accent-amber);
        }

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

        .feature-card img {
            width: 100%;
            height: auto;
            border-radius: 8px;
            margin-bottom: 1rem;
            transition: all 0.2s ease-out;
        }

        .feature-card i {
            font-size: 2.5rem;
            color: var(--accent-color);
            margin-bottom: 1rem;
        }

        /* 利用シーン */
        .use-cases {
            background-color: var(--card-bg);
            padding: 120px 0;
        }
        .use-case-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }
        .use-case-card {
            position: relative;
            overflow: hidden;
            background: white;
            transition: all 0.2s ease-out;
        }

        .use-case-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-2);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }

        .use-case-content {
            padding: 1.5rem;
        }

        .use-case-card h3 {
            color: var(--primary-color);
            position: relative;
            padding-bottom: 0.5rem;
        }

        .use-case-card h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 2px;
            background-color: var(--accent-color);
        }
        .use-case-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }

        .use-case-card p {
            font-size: 1rem;
            color: var(--text-secondary);
            padding: 0 1rem 2rem;
        }


        /* 料金プラン */
        .pricing {
            padding: 120px 0;
            background-color: var(--light-bg);
        }

        .pricing-tables {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }

        .pricing-card {
            background: var(--card-bg);
            border-radius: 10px;
            padding: 2.5rem;
            box-shadow: var(--shadow-1);
            text-align: center;
        }

        .pricing-card ul {
            list-style: none;
            padding: 0;
            margin: 1rem 0;
        }

        .pricing-card ul li {
            margin-bottom: 0.5rem;
            padding: 0.5rem 0;
            border-bottom: 1px solid #eee;
        }

        .price {
            font-size: 2rem;
            color: var(--accent-color);
            margin: 1rem 0;
        }

        /* FAQ */
        /* FAQセクションのスタイル更新 */
        .faq-item {
            background: var(--card-bg);
            border-radius: 10px;
            padding: 2.5rem;
            margin-bottom: 1rem;
            box-shadow: var(--shadow-1);
            transition: transform 0.2s ease-out;
        }

        .faq-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-2);
        }

        .faq-question {
            font-weight: bold;
            color: var(--primary-color);
            margin-bottom: 1rem;
            font-size: 1.1rem;
        }

        .faq-answer {
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .faq-answer ul {
            list-style: none;
            padding: 0;
            margin: 1rem 0;
        }

        .faq-answer ul li {
            margin-bottom: 0.8rem;
            padding-left: 1.5rem;
            position: relative;
        }

        .faq-answer ul li:before {
            content: "";
            position: absolute;
            left: 0;
            top: 0.5rem;
            width: 6px;
            height: 6px;
            background-color: var(--accent-color);
            border-radius: 50%;
        }

        /* コンタクトフォーム */
        .contact {
            padding: 80px 0;
            background-color: var(--light-bg);
        }

        .contact-container {
            max-width: 800px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .contact-header {
            text-align: center;
            margin-bottom: 2rem;
        }

        .contact-description {
            text-align: center;
            margin-bottom: 3rem;
            color: var(--text-secondary);
        }

        .hs-form-frame {
            background: var(--card-bg);
            border-radius: 10px;
            padding: 2rem;
            box-shadow: var(--shadow-1);
        }

        /* フッター */
        footer {
            background: linear-gradient(180deg,
                #2c3e50 0%,
                #34495e 100%
            );
            color: white;
            padding: 4rem 0 2rem;
            position: relative;
        }

        footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--gradient-multicolor);
        }

        .footer-content {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 3rem;
            margin-bottom: 3rem;
        }

        /* 信頼性セクション */
        .trust-section {
            background: linear-gradient(135deg, #f4f6f8, #ffffff);
            padding: 3rem 0;
            margin: 2rem 0;
        }

        .trust-badges-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            text-align: center;
        }

        .trust-badge-item {
            padding: 2.5rem;
            background: white;
            border-radius: 8px;
            box-shadow: var(--shadow-1);
            transition: all 0.2s ease-out;
            border: none;
        }

        .trust-badge-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-2);
        }

        .trust-badge-item i {
            font-size: 3rem;
            color: var(--accent-color);
            margin-bottom: 1rem;
        }

        .trust-badge-item h4 {
            color: var(--primary-color);
            font-size: 1.3rem;
            margin-bottom: 0.5rem;
        }

        .trust-badge-item p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        .footer-section h3 {
            color: white;
            margin-bottom: 1.5rem;
            font-size: 1.2rem;
        }

        .footer-section a,
        .footer-section a:visited {
            color: white;
            transition: color 0.2s ease-out;
        }

        .footer-section a:hover {
            color: var(--accent-color);
        }

        .footer-section.company .address-info,
        .footer-section.company .contact-info {
            margin-bottom: 1.5rem;
        }

        .office-label,
        .contact-label {
            font-weight: bold;
            margin-right: 0.5rem;
        }

        .menu-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1rem;
        }

        .menu-grid a {
            color: white;
            text-decoration: none;
            transition: color 0.2s ease-out;
            padding: 0.5rem 0;
        }

        .menu-grid a:hover {
            color: var(--accent-color);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 2rem;
        }

        .privacy-section {
            margin-bottom: 2rem;
            text-align: center;
        }

        .privacy-link {
            color: white;
            text-decoration: none;
            font-size: 0.9rem;
            transition: color 0.2s ease-out;
        }

        .privacy-link:hover {
            color: var(--accent-color);
        }

        /* 会社紹介セクション */
        .company-intro {
            margin: 2rem auto 2.5rem;
            padding: 2rem;
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(248, 249, 250, 0.95));
            border-radius: 12px;
            border: 1px solid rgba(0, 212, 255, 0.2);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
            max-width: 900px;
        }

        .company-intro h4 {
            color: #2874a6;
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 1rem;
            text-align: center;
        }

        .company-description {
            color: #2c3e50;
            font-size: 1rem;
            line-height: 1.8;
            margin-bottom: 2rem;
            text-align: center;
        }

        .company-description strong {
            color: #2874a6;
            font-weight: 700;
        }

        .company-highlights {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
            margin-bottom: 2rem;
        }

        .highlight-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            padding: 1.5rem 1rem;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 8px;
            transition: all 0.3s ease;
        }

        .highlight-item:hover {
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(-3px);
        }

        .highlight-number {
            color: #2874a6;
            font-size: 1.8rem;
            font-weight: 900;
            margin-bottom: 0.5rem;
        }

        .highlight-label {
            color: #7f8c8d;
            font-size: 0.85rem;
            font-weight: 500;
        }

        .company-link-button {
            display: inline-block;
            background: var(--premium-gradient);
            color: rgb(20, 19, 19);
            padding: 0.9rem 2rem;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            font-size: 1rem;
            transition: all 0.3s ease;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
            margin: 0 auto;
            display: block;
            width: fit-content;
        }

        .company-link-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
        }

        /* ISMS認証セクション強化 */
        .certification-section {
            margin-bottom: 2rem;
        }

        .certification-section.enhanced {
            margin: 2.5rem 0;
        }

        .isms-content {
            display: flex;
            align-items: center;
            gap: 2.5rem;
            background: rgba(255, 255, 255, 0.08);
            padding: 2rem;
            border-radius: 12px;
            max-width: 900px;
            margin: 0 auto;
            border: 2px solid rgba(40, 116, 166, 0.3);
        }

        .isms-logo {
            width: 80px;
            height: auto;
            flex-shrink: 0;
        }

        .isms-logo.enlarged {
            width: 120px;
        }

        .isms-text {
            flex: 1;
        }

        .isms-title {
            color: #5dade2;
            font-size: 1.1rem;
            font-weight: 700;
            margin: 0 0 0.5rem 0;
        }

        .isms-desc {
            margin: 0;
            font-size: 1rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.85);
        }

        .isms-desc strong {
            color: #00d4ff;
            font-weight: 700;
            font-size: 1.1rem;
        }

        /* 関連サービス（サブ） */
        .related-services {
            margin-top: 2rem;
            padding-top: 2rem;
            border-top: 1px solid rgba(0, 212, 255, 0.2);
        }

        .related-services h5 {
            color: rgba(255, 255, 255, 0.9);
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 1rem;
            text-align: center;
        }

        .service-links.compact {
            display: flex;
            justify-content: center;
            gap: 2rem;
            flex-wrap: wrap;
        }

        .service-link {
            display: flex;
            flex-direction: column;
            align-items: center;
            padding: 1rem 1.5rem;
            background: rgba(0, 212, 255, 0.05);
            border: 1px solid rgba(0, 212, 255, 0.15);
            border-radius: 6px;
            text-decoration: none;
            transition: all 0.3s ease;
            min-width: 180px;
        }

        .service-link:hover {
            background: rgba(0, 212, 255, 0.1);
            border-color: rgba(0, 212, 255, 0.3);
            transform: translateY(-2px);
        }

        .service-link strong {
            color: rgba(255, 255, 255, 0.95);
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 0.3rem;
        }

        .service-link span {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.8rem;
        }

        .copyright {
            text-align: center;
            font-size: 0.8rem;
            color: #7f8c8d;
            margin-top: 2rem;
        }

        @media (max-width: 768px) {
            .footer-content {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .menu-grid {
                grid-template-columns: 1fr;
            }

            .company-intro {
                padding: 1.5rem;
            }

            .company-highlights {
                grid-template-columns: 1fr;
                gap: 1rem;
            }

            .highlight-number {
                font-size: 1.5rem;
            }

            .isms-content {
                flex-direction: column;
                text-align: center;
                padding: 1.5rem;
            }

            .isms-logo {
                width: 60px;
            }

            .isms-logo.enlarged {
                width: 90px;
            }

            .isms-title {
                font-size: 1rem;
            }

            .service-links.compact {
                flex-direction: column;
                gap: 1rem;
            }

            .service-link {
                min-width: unset;
                width: 100%;
                box-sizing: border-box;
            }
        }

        /* AI Solutions セクション */
        .ai-solutions {
            padding: 80px 0;
            background-color: var(--card-bg);
        }

        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }

        .solution-card {
            background: var(--light-bg);
            border-radius: 10px;
            padding: 2rem;
            box-shadow: var(--shadow-1);
            transition: all 0.2s ease-out;
            text-align: center;
            display: flex;
            flex-direction: column;
            height: 100%;
        }

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

        .solution-card i {
            font-size: 3rem;
            color: var(--accent-color);
            margin-bottom: 1.5rem;
        }

        .solution-card h3 {
            color: var(--primary-color);
            font-size: 1.5rem;
            margin-bottom: 1rem;
        }

        .solution-card p {
            color: var(--text-secondary);
            line-height: 1.6;
            flex-grow: 1;
            margin-bottom: 1.5rem;
        }

        .solution-link {
            display: inline-block;
            color: var(--accent-color);
            font-weight: bold;
            transition: color 0.2s ease-out;
            margin-top: auto;
        }

        .solution-link:hover {
            color: #2980b9;
        }

        .solution-link i {
            font-size: 0.9rem;
            margin-left: 0.5rem;
            margin-bottom: 0;
        }

        @media (max-width: 768px) {
            .solutions-grid {
                grid-template-columns: 1fr;
            }
        }

        .partnership {
            padding: 120px 0;
            background: linear-gradient(145deg, var(--light-bg) 0%, #ffffff 100%);
        }

        .partnership-content {
            max-width: 1000px;
            margin: 0 auto;
        }

        .partnership-intro {
            text-align: center;
            margin-bottom: 4rem;
        }

        .partnership-intro h3 {
            color: var(--primary-color);
            font-size: 1.8rem;
            margin-bottom: 1.5rem;
        }

        .partnership-intro p {
            font-size: 1.1rem;
            line-height: 1.8;
            max-width: 800px;
            margin: 0 auto;
            color: var(--text-secondary);
        }

        .partnership-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-bottom: 4rem;
        }

        .partnership-card {
            background: white;
            padding: 2.5rem;
            border-radius: 10px;
            box-shadow: var(--shadow-1);
            transition: transform 0.2s ease-out;
            text-align: center;
        }

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

        .partnership-card i {
            font-size: 2.5rem;
            color: var(--accent-color);
            margin-bottom: 1.5rem;
        }

        .partnership-card h4 {
            color: var(--primary-color);
            font-size: 1.3rem;
            margin-bottom: 1rem;
        }

        .partnership-card p {
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .partnership-cta {
            text-align: center;
            background: linear-gradient(145deg, #f8f9fa 0%, #ffffff 100%);
            padding: 3rem;
            border-radius: 10px;
            box-shadow: var(--shadow-1);
        }

        .partnership-cta h4 {
            color: var(--primary-color);
            font-size: 1.5rem;
            margin-bottom: 1rem;
        }

        .partnership-cta p {
            color: var(--text-secondary);
            margin-bottom: 2rem;
        }

        .partnership-button {
            display: inline-block;
            background-color: var(--accent-color);
            color: white;
            padding: 1rem 2.5rem;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 500;
            transition: all 0.2s ease-out;
        }

        .partnership-button:hover {
            background-color: #c0392b;
        }

        /* ページ内メニュー */
        .page-menu-section {
            background-color: var(--light-bg);
            padding: 1rem 0;
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
            position: sticky;
            top: 70px; /* Match nav height */
            z-index: 900;
        }

        .page-menu-container {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 1.5rem;
        }

        .page-menu-item {
            color: var(--primary-color);
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: all 0.2s ease-out;
            text-decoration: none;
        }

        .page-menu-item:hover {
            background-color: var(--accent-color);
            color: white;
        }

        @media (max-width: 768px) {

            .page-menu-container {
                gap: 0.5rem;
            }

            .page-menu-item {
                padding: 0.3rem 0.6rem;
                font-size: 0.9rem;
            }
        }

        /* レスポンシブ対応 */
        @media (max-width: 768px) {
            .partnership {
                padding: 60px 0;
            }

            .partnership-intro h3 {
                font-size: 1.5rem;
            }

            .partnership-grid {
                grid-template-columns: 1fr;
            }

            .partnership-cta {
                padding: 2rem;
            }
        }

        .case-studies {
            padding: 80px 0;
            background-color: var(--light-bg);
        }

        .case-study {
            background: white;
            border-radius: 12px;
            padding: 2rem;
            box-shadow: var(--shadow-1);
            margin-top: 2rem;
        }

        .case-title {
            color: var(--primary-color);
            font-size: 1.8rem;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 3px solid var(--accent-color);
        }

        .implementation-steps {
            margin-bottom: 3rem;
        }

        .step {
            margin-bottom: 1.5rem;
        }

        .step h4 {
            color: var(--primary-color);
            font-size: 1.3rem;
            margin-bottom: 0.5rem;
        }

        .step p {
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .trust-badges {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 2rem;
            margin-top: 3rem;
            padding: 1.5rem;
            background: rgba(255, 255, 255, 0.7);
            border-radius: 10px;
            box-shadow: var(--shadow);
        }

        .trust-badge {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }

        .trust-badge i {
            font-size: 2.5rem;
            color: var(--accent-color);
            margin-bottom: 1rem;
        }

        .trust-badge p {
            font-weight: bold;
            color: var(--primary-color);
            margin: 0;
        }

        .trust-badge span {
            font-size: 0.9rem;
            color: var(--text-secondary);
        }

        .system-diagram {
            background: #f8f9fa;
            padding: 2rem;
            border-radius: 8px;
        }

        .system-diagram h4 {
            color: var(--primary-color);
            margin-bottom: 2rem;
            text-align: center;
        }

        .diagram-container {
            position: relative;
            display: flex;
            justify-content: center;
            gap: 2rem;
        }

        .network-boundary {
            border: 2px solid #ddd;
            border-radius: 12px;
            padding: 2rem;
            background: #fff;
            position: relative;
            width: 100%;
            max-width: 800px;
        }

        .network-label {
            position: absolute;
            top: -12px;
            left: 20px;
            background: #fff;
            padding: 0 10px;
            color: var(--text-secondary);
            font-weight: bold;
        }

        .systems-grid {
            display: grid;
            gap: 1.5rem;
        }

        .system-box {
            background: #e8f0fe;
            padding: 1rem;
            border-radius: 6px;
            text-align: center;
            margin-bottom: 0.5rem;
            border: 1px solid #b8d4fe;
        }

        .ai-components {
            display: flex;
            gap: 1rem;
            margin-bottom: 1rem;
        }

        .ubuntu-server {
            background: #f8f9fa;
            padding: 1rem;
            border-radius: 8px;
            border: 1px solid #ddd;
        }

        .server-header {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }

        .ubuntu-logo {
            width: 30px;
            height: 30px;
        }

        .server-components {
            display: grid;
            gap: 0.5rem;
        }

        .external-system {
            display: flex;
            align-items: center;
        }

        .id-system {
            background: #e8f0fe;
            padding: 1rem;
            border-radius: 6px;
            text-align: center;
            border: 1px solid #b8d4fe;
            width: 150px;
        }

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

            .diagram-container {
                flex-direction: column;
            }

            .network-boundary {
                padding: 1rem;
            }

            .ai-components {
                flex-direction: column;
            }

            .external-system {
                justify-content: center;
            }
        }

        /* パフォーマンス最適化 */
        img {
            content-visibility: auto;
        }

        html {
            scroll-behavior: smooth;
        }

        /* アニメーション最適化 */
        @media (prefers-reduced-motion: reduce) {
            * {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
        }
/* システム構成セクション */
.system-architecture {
    padding: 120px 0;
    background-color: var(--light-bg);
}

.system-architecture h2 {
    color: var(--primary-color);
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
    position: relative;
    padding-bottom: 1.5rem;
}

.system-architecture h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 4px;
    background: var(--gradient-rainbow);
    border-radius: 2px;
}

/* システム構成図 */
.architecture-diagram {
    max-width: 1000px;
    margin: 0 auto 4rem;
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow-1);
    text-align: center;
}

.architecture-diagram svg {
    max-width: 100%;
    height: auto;
}

.diagram-note {
    margin-top: 1.5rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 委託メリットセクション */
.delegation-benefits {
    max-width: 1000px;
    margin: 0 auto 4rem;
}

.delegation-benefits h3 {
    color: var(--primary-color);
    font-size: 1.8rem;
    text-align: center;
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 1rem;
}

.delegation-benefits h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: var(--gradient-cool);
    border-radius: 2px;
}

.intro-text {
    text-align: center;
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.intro-text strong {
    color: var(--accent-cyan);
    font-weight: 600;
}

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

.benefit-card {
    background: white;
    border-radius: 10px;
    padding: 2.5rem;
    box-shadow: var(--shadow-1);
    transition: all 0.2s ease-out;
    text-align: center;
    border-top: 4px solid var(--accent-cyan);
}

.benefit-card:nth-child(2) {
    border-top-color: var(--accent-purple);
}

.benefit-card:nth-child(3) {
    border-top-color: var(--accent-orange);
}

.benefit-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-2);
}

.benefit-card i {
    font-size: 2.5rem;
    color: var(--accent-cyan);
    margin-bottom: 1rem;
}

.benefit-card:nth-child(2) i {
    color: var(--accent-purple);
}

.benefit-card:nth-child(3) i {
    color: var(--accent-orange);
}

.benefit-card h4 {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.benefit-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 維持料金サービス内容 */
.maintenance-info {
    max-width: 1000px;
    margin: 0 auto;
}

.maintenance-info h3 {
    color: var(--primary-color);
    font-size: 1.8rem;
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
    padding-bottom: 1rem;
}

.maintenance-info h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: var(--gradient-warm);
    border-radius: 2px;
}

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

.maintenance-card {
    background: white;
    border-radius: 10px;
    padding: 2.5rem;
    box-shadow: var(--shadow-1);
    transition: all 0.2s ease-out;
    text-align: center;
    border-top: 4px solid var(--accent-teal);
}

.maintenance-card:nth-child(2) {
    border-top-color: var(--accent-amber);
}

.maintenance-card:nth-child(3) {
    border-top-color: var(--accent-pink);
}

.maintenance-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-2);
}

.maintenance-card i {
    font-size: 2.5rem;
    color: var(--accent-teal);
    margin-bottom: 1rem;
}

.maintenance-card:nth-child(2) i {
    color: var(--accent-amber);
}

.maintenance-card:nth-child(3) i {
    color: var(--accent-pink);
}

.maintenance-card h4 {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.maintenance-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .system-architecture {
        padding: 60px 0;
    }

    .system-architecture h2 {
        font-size: 1.8rem;
    }

    .architecture-diagram {
        padding: 1rem;
        margin-bottom: 2rem;
    }

    .delegation-benefits h3,
    .maintenance-info h3 {
        font-size: 1.5rem;
    }

    .intro-text {
        font-size: 1rem;
    }

    .benefits-grid,
    .maintenance-grid {
        grid-template-columns: 1fr;
    }
}


/* アプリケーション説明セクション */
.app-explanation {
    max-width: 1000px;
    margin: 0 auto 4rem;
    padding: 3rem 0;
}

.app-explanation h3 {
    color: var(--primary-color);
    font-size: 1.8rem;
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
    padding-bottom: 1rem;
}

.app-explanation h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: var(--gradient-rainbow);
    border-radius: 2px;
}

.app-explanation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 2.5rem;
    margin-bottom: 3rem;
}

.app-card {
    background: white;
    border-radius: 12px;
    padding: 2.5rem;
    box-shadow: var(--shadow-1);
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.app-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-3);
}

.LibreChat-card {
    border-top: 4px solid #00d4ff;
}

.LibreChat-card:hover {
    border-color: #00d4ff;
}

.dify-card {
    border-top: 4px solid #9b59b6;
}

.dify-card:hover {
    border-color: #9b59b6;
}

.app-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.app-header i {
    font-size: 2rem;
    color: var(--accent-cyan);
}

.dify-card .app-header i {
    color: var(--accent-purple);
}

.app-header h4 {
    color: var(--primary-color);
    font-size: 1.4rem;
    margin: 0;
    flex: 1;
}

.app-badge {
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.app-badge.opensource {
    background: linear-gradient(135deg, #00d4ff, #1abc9c);
    color: white;
}

.app-description {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.app-features {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.app-features h5 {
    color: var(--primary-color);
    font-size: 1.1rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.app-features ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.app-features li {
    padding: 0.6rem 0;
    color: var(--text-secondary);
    display: flex;
    align-items: flex-start;
    gap: 0.8rem;
    line-height: 1.6;
}

.app-features li i {
    color: #1abc9c;
    font-size: 0.9rem;
    margin-top: 0.3rem;
    flex-shrink: 0;
}

.app-features li strong {
    color: var(--primary-color);
    font-weight: 600;
}

.app-custom {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.05), rgba(155, 89, 182, 0.05));
    border-left: 3px solid var(--accent-cyan);
    padding: 1.2rem;
    border-radius: 6px;
}

.dify-card .app-custom {
    border-left-color: var(--accent-purple);
}

.app-custom h5 {
    color: var(--primary-color);
    font-size: 1rem;
    margin-bottom: 0.8rem;
}

.app-custom p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
    font-size: 0.9rem;
}

/* 比較表 */
.comparison-note {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border-radius: 12px;
    padding: 2rem;
    margin-top: 2rem;
}

.comparison-note h4 {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.comparison-note h4 i {
    color: #f39c12;
}

.comparison-table {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.comparison-row {
    display: grid;
    grid-template-columns: 150px 1fr 1fr;
    gap: 1rem;
    align-items: center;
    background: white;
    padding: 1rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.comparison-label {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 0.9rem;
}

.comparison-cloud,
.comparison-oss {
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.85rem;
    line-height: 1.4;
}

.comparison-cloud {
    background: #fff3cd;
    color: #856404;
}

.comparison-oss {
    background: #d4edda;
    color: #155724;
}

.comparison-oss strong {
    color: #0a3d1a;
}

/* レスポンシブ対応 */
@media (max-width: 1000px) {
    .app-explanation-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .comparison-row {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    
    .comparison-label {
        font-weight: 700;
        font-size: 1rem;
    }
}

/* アニメーション用スタイル */
.feature-card, .use-case-card, .pricing-card, .faq-item {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease-out;
}

.show {
    opacity: 1;
    transform: translateY(0);
}

/* ヒーローセクション用Difyバッジ */
.hero-dify-badge {
    display: inline-block;
    padding: 0.6rem 1.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #9b59b6 0%, #e74c3c 50%, #f39c12 100%);
    color: white;
    font-size: 0.9rem;
    font-weight: 700;
    border-radius: 30px;
    box-shadow: 0 4px 15px rgba(155, 89, 182, 0.3);
    animation: pulse-glow 2s ease-in-out infinite;
    text-transform: none;
    letter-spacing: 0.05em;
}

@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 4px 15px rgba(155, 89, 182, 0.3);
        transform: scale(1);
    }
    50% {
        box-shadow: 0 6px 20px rgba(155, 89, 182, 0.5);
        transform: scale(1.02);
    }
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .hero-dify-badge {
        font-size: 0.85rem;
        padding: 0.5rem 1.2rem;
    }
}

/* ========================================
   モバイルメニューダイアログ
   ======================================== */

/* オーバーレイ背景 */
.mobile-menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 9998;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.mobile-menu-overlay.active {
    display: block;
    opacity: 1;
}

/* ダイアログ本体 */
.mobile-menu-dialog {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 400px;
    height: 100%;
    background: linear-gradient(135deg,
        rgba(44, 62, 80, 0.98) 0%,
        rgba(52, 73, 94, 0.98) 100%
    );
    backdrop-filter: blur(20px);
    box-shadow: -5px 0 30px rgba(0, 0, 0, 0.5);
    z-index: 9999;
    transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
}

.mobile-menu-overlay.active .mobile-menu-dialog {
    right: 0;
}

/* ヘッダー（閉じるボタン） */
.mobile-menu-header {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    padding: 20px 25px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-menu-close {
    background: none;
    border: none;
    cursor: pointer;
    width: 30px;
    height: 30px;
    position: relative;
    padding: 0;
}

.mobile-menu-close span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: #ffffff;
    position: absolute;
    top: 50%;
    left: 50%;
    transition: all 0.3s ease;
}

.mobile-menu-close span:first-child {
    transform: translate(-50%, -50%) rotate(45deg);
}

.mobile-menu-close span:last-child {
    transform: translate(-50%, -50%) rotate(-45deg);
}

/* メニューコンテンツ */
.mobile-menu-content {
    padding: 30px 25px;
}

.mobile-directory-menu {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.mobile-menu-link {
    color: #ffffff;
    text-decoration: none;
    font-size: 1.2rem;
    font-weight: 500;
    padding: 18px 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    display: block;
}

.mobile-menu-link:hover,
.mobile-menu-link:active {
    background-color: rgba(255, 255, 255, 0.1);
    padding-left: 25px;
    color: #64b5f6;
}

/* デスクトップでは非表示 */
@media (min-width: 769px) {
    .mobile-menu-overlay {
        display: none !important;
    }
}