/* ==================================== */
        /* ベーススタイル（モバイルファースト） */
        /* ==================================== */
        :root {
            --primary-color: #4A90E2;
            --secondary-color: #F6F9FC;
            --text-color: #333;
            --heading-color: #1A1A1A;
            --font-jp: 'Noto Sans JP', sans-serif;
            --font-en: 'Inter', sans-serif;
            --background-dark: #333;
            --header-height: 60px;
        }

        h1,
        h2,
        h3 {
            font-weight: normal;
        }

        body {
            font-family: 'Noto Sans JP', 'Helvetica', sans-serif;
            margin: 0;
            line-height: 1.6;
            color: var(--text-color);
            background-color: #fff;
            scroll-behavior: smooth;
        }


        /* デフォルト: 日本語 */
        .jp-text {
            display: block;
        }

        .en-text {
            display: none;
        }

        /* 英語モード */
        .lang-en .jp-text {
            display: none;
        }

        .lang-en .en-text {
            display: block;
        }


        .zen-font {
            font-family: 'Zen Antique Soft', serif;
        }

        .container {
            max-width: 1000px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .btn {
            display: inline-block;
            padding: 14px 28px;
            background-color: var(--primary-color);
            color: #fff;
            text-decoration: none;
            border-radius: 8px;
            text-align: center;
            transition: background-color 0.3s ease;
        }

        .btn:hover {
            background-color: #357ABD;
        }

        .section {
            padding: 80px 0;
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }

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

        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-header h2 {
            font-size: 2.2rem;
            margin-bottom: 10px;
        }

        .section-header p {
            font-size: 1.1rem;
        }

        /* ==================================== */
        /* ヘッダー */
        /* ==================================== */
        .header {
            background-color: transparent;
            color: #fff;
            padding: 10px 0;
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 100;
            transition: background-color 0.3s ease, color 0.3s ease;
            height: var(--header-height);
            display: flex;
            align-items: center;
        }

        .header.scrolled {
            background-color: rgba(255, 255, 255, 0.95);
            color: var(--text-color);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }

        .header.scrolled .nav-list a {
            color: var(--text-color);
        }

        .header.scrolled .menu-toggle span {
            background-color: var(--text-color);
        }

        .logo {
            display: block;
            width: 180px;
            height: 51px;
            background: url("../img/logo-black.png") no-repeat center / contain;
            transition: background-image 0.3s ease;
        }

        .header.scrolled .logo {
            background-image: url("../img/logo-white.png");
        }

        .header .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }

        .logo-group {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            width: 180px;
        }

        .logo-group img {
            width: inherit;
        }

        .nav-right {
            display: flex;
            /**align-items: center;**/
            gap: 40px;
        }

        .nav-list ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            gap: 20px;
        }

        .nav-list a {
            text-decoration: none;
            color: #fff;
            transition: color 0.3s ease;
            position: relative;
        }

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

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

        /* ハンバーガーメニュー */
        .menu-toggle {
            display: none;
            flex-direction: column;
            justify-content: space-between;
            width: 38px;
            height: 23px;
            cursor: pointer;
            z-index: 200;
            background: none;
            border: none;
        }

        .menu-toggle span {
            display: block;
            width: 100%;
            height: 3px;
            background-color: #fff;
            transition: all 0.3s ease;
            border-radius: 2px;
        }

        .menu-toggle.active span:nth-child(1) {
            transform: translateY(9px) rotate(45deg);
            background-color: #111;
        }

        .menu-toggle.active span:nth-child(2) {
            opacity: 0;
            background-color: #111;
        }

        .menu-toggle.active span:nth-child(3) {
            transform: translateY(-9px) rotate(-45deg);
            background-color: #111;
        }

        /* ==================================== */
        /* TOPに戻るボタン */
        /* ==================================== */
        .to-top {
            position: fixed;
            bottom: 24px;
            right: 24px;
            width: 50px;
            height: 50px;
            background-color: rgb(100 100 100 / 70%);
            color: #fff;
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            text-decoration: none;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s ease, visibility 0.3s ease;
        }

        .to-top.visible {
            opacity: 1;
            visibility: visible;
        }

        .to-top::after {
            content: '↑';
            font-size: 24px;
        }

        /* ==================================== */
        /* モーダル表示 */
        /* ==================================== */

        body.modal-open {
            overflow: hidden;
            position: fixed;
            width: 100%;
        }

        .modal {
            position: fixed;
            inset: 0;
            display: flex;
            justify-content: center;
            align-items: center;

            visibility: hidden;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
            background-color: rgba(0, 0, 0, 0.5);

            /* ★ 追加 ★ */
            will-change: opacity, transform;
            transform: translateZ(0);
        }

        .modal.is-active {
            visibility: visible;
            opacity: 1;
            pointer-events: auto;
            z-index: 9999;
            max-height: 100vh;
        }

        .modal-content {
            background-color: #fff;
            border-radius: 12px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
            max-width: 900px;
            width: 90%;
            display: flex;
            flex-direction: column;
            overflow: hidden;
            position: relative;
            padding: 2rem;
        }

        .modal-body {
            display: flex;
            flex-direction: column;
        }

        .modal-image-container {
            flex: 1;
            padding: 20px;
        }

        .modal-image {
            display: block;
            width: 30%;
            height: auto;
            border-radius: 8px;
        }

        .modal-text-container {
            flex: 1;
            padding: 20px;
            display: flex;
            flex-direction: column;
        }

        .modal-text-content {
            height: auto;
            max-height: 400px;
            overflow-y: auto;
        }

        .modal-title {
            color: var(--text-color);
            font-size: 1.5rem;
            text-align: left;
            margin: 0 0 10px 0;
        }

        .modal-sub-title {
            font-size: 0.9rem;
            color: #666;
            margin-bottom: 20px;
        }

        .modal-description {
            font-size: 1rem;
            line-height: 1.7;
        }

        .modal-close {
            position: absolute;
            top: 20px;
            right: 20px;
            color: #fff;
            font-size: 40px;
            transition: 0.3s;
            line-height: 1;
            cursor: pointer;
            text-shadow: 0 0 5px rgba(0, 0, 0, 0.5);
            z-index: 210;
        }

        .modal-close:hover {
            color: #bbb;
        }

        .default-modal {
            display: flex;
            justify-content: space-around;
        }

        .default-modal img {
            width: 35%;
            height: auto;
        }

        .default-modal p.jp-text,
        .default-modal p.en-text {
            width: 55%;
        }

        /* ==================================== */
        /* ヒーローセクション */
        /* ==================================== */
        .hero {
            position: relative;
            /*
            height: 100vh;
            display: flex;
            */
            align-items: center;
            justify-content: center;
            color: #fff;
            text-align: center;
            overflow: hidden;
            padding: 0 24px;
            margin-top: calc(-1 * var(--header-height));
            padding-top: var(--header-height);
            padding-bottom: calc(2 * var(--header-height));
        }

        .hero2 {
            position: relative;
            align-items: center;
            justify-content: center;
            color: #000;
            text-align: center;
            overflow: hidden;
            padding: 0 24px;
            padding-top: var(--header-height);
            padding-bottom: calc(2 * var(--header-height));
            background-image: url(../img/top-back.png);
            background-size: cover;
            background-color: #f2f2f2;
            background-position: center;
        }

        .hero-video {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            z-index: -1;
        }

        .hero-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.5);
            z-index: 1;
        }

        .hero .container {
            position: relative;
            z-index: 2;
            width: 100%;
            margin-top: 150px;
            padding: 0;
        }

        .hero .hero-text-box {
            margin: 0 auto;
            text-align: left;
        }

        .hero .hero-text-box h1 {
            font-size: 3rem;
            margin-bottom: 25px;
            opacity: 0;
            transform: translateY(20px);
            animation: fadeIn 1s ease forwards;
            animation-delay: 0.5s;
        }

        .hero .hero-text-box p {
            font-size: 1.2rem;
            margin-bottom: 20px;
            opacity: 0;
            transform: translateY(20px);
            animation: fadeIn 1s ease forwards;
            animation-delay: 1s;
        }

        .hero .cta-container {
            border: 1px solid #fff;
            padding: 40px 0%;
            /*max-width: 500px;*/
            /*width: 100%;*/
            margin: 40px auto 0;
            opacity: 0;
            transform: translateY(20px);
            animation: fadeIn 1s ease forwards;
            animation-delay: 1.5s;
        }

        .hero2 .cta-container {
            border: 1px solid #000;
            padding: 40px 0%;
            margin: 40px auto 0;
            opacity: 0;
            transform: translateY(20px);
            animation: fadeIn 1s ease forwards;
            animation-delay: 1.5s;
            background-color: rgba(255, 255, 255, 0.5)
        }


        /* ヒーローバナーのスタイル */
        .hero-banner-container {
            position: absolute;
            bottom: 40px;
            left: 50%;
            transform: translateX(-50%);
            width: 100%;
            max-width: 600px;
            display: flex;
            flex-direction: column;
            gap: 20px;
            z-index: 3;
            padding: 0 24px;
            box-sizing: border-box;
            opacity: 0;
            transform: translateX(-50%) translateY(20px);
            animation: fadeIn 1s ease forwards;
            animation-delay: 2s;
        }

        .hero-banner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background-color: rgba(255, 255, 255, 0.85);
            padding: 15px 25px;
            border-radius: 12px;
            text-decoration: none;
            color: var(--heading-color);
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            cursor: pointer;
        }

        .hero-banner:hover {
            transform: translateY(-5px);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
        }

        .hero-banner-text {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
        }

        .hero-banner-text h3 {
            font-size: 1.2rem;
            margin: 0;
        }

        .hero-banner-text p {
            font-size: 0.8rem;
            margin: 0;
            color: #666;
        }

        .hero-banner-arrow {
            font-size: 2rem;
            color: var(--primary-color);
            transition: transform 0.3s ease;
        }

        .hero-banner:hover .hero-banner-arrow {
            transform: translateX(5px);
        }

        /*EXPOページへリンク*/
        .expo-link {
            text-align: center;
        }

        .expo-link .sp {
            display: none;
        }

        .expo-link img {
            border-radius: 20px;
            width: 80%;
        }

        /*診断へリンク*/
        .quiz-link {
            width: 40%;
            position: absolute;
            top: 65%;
            right: 0%;
            z-index: 1;
        }

        .quiz-link .sp {
            display: none;
        }

        .quiz-link img {
            border-radius: 20px;
            width: -webkit-fill-available;
            border: 2px solid #fff;
        }

        .top-text {
            width: 60%;
        }


        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ==================================== */
        /* サービスについてセクション */
        /* ==================================== */
        .about-section {
            background-color: var(--secondary-color);
        }

        .about-grid {
            display: flex;
            flex-direction: column;
            gap: 40px;
        }

        .about-item {
            text-align: center;
        }

        .about-item img {
            width: 100%;
            height: auto;
            border-radius: 8px;
            margin-bottom: 20px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        .about-item h3 {
            font-size: 1.6rem;
            margin-bottom: 10px;
            color: var(--heading-color);
        }

        .about-item p {
            font-size: 1rem;
            color: #666;
            text-align: left;
        }

        /* ==================================== */
        /* 製品ギャラリーセクション */
        /* ==================================== */
        .product-section {
            background-color: #333;
            color: #fff;
        }

        .product-title {
            font-size: 2.2rem;
            color: #fff;
            text-align: center;
            margin-bottom: 50px;
        }

        .product-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px;
        }

        .product-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            cursor: pointer;
            width: calc(50% - 10px);
        }

        .product-item img {
            width: 100%;
            height: auto;
            border-radius: 8px;
            transition: transform 0.3s ease;
        }

        .product-item img:hover {
            transform: scale(1.05);
        }

        .product-item h3 {
            font-size: 1.2rem;
            margin-top: 10px;
        }

        /* ==================================== */
        /* ハンドルセクション */
        /* ==================================== */
        .handles-section {
            background-color: var(--secondary-color);
            padding: 80px 0;
            text-align: center;
        }

        .handles-title {
            font-size: 2.2rem;
            color: var(--heading-color);
            margin-bottom: 50px;
        }

        .handles-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px;
        }

        .handle-item {
            width: calc(50% - 10px);
        }

        .handle-item img {
            width: 100%;
            height: auto;
            border-radius: 8px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        /* ==================================== */
        /* たたら製鉄セクション */
        /* ==================================== */
        .tatara-section {
            padding: 80px 0;
        }

        .tatara-container {
            display: flex;
            flex-direction: column;
            gap: 40px;
        }

        .tatara-container2 {
            display: flex;
            flex-direction: column;
            gap: 40px;
            margin-top: 40px;
        }

        .tatara-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }

        .tatara-item img {
            width: 100%;
            height: auto;
            border-radius: 8px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            margin-bottom: 20px;
        }

        .tatara-item h2,
        .tatara-item h3 {
            margin-top: 0;
            margin-bottom: 10px;
        }

        .tatara-item p {
            font-size: 1rem;
            color: #666;
            text-align: left;
        }

        /* ==================================== */
        /* 特徴モーダル */
        /* ==================================== */

        /*堺刃物*/
        .feature-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
        }

        .feature-container .item {
            background-color: white;
            border-radius: 8px;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            width: 100%;
            max-width: 350px;
            text-align: center;
            overflow: hidden;
            box-sizing: border-box;
        }

        .feature-container .item img {
            width: 100%;
            height: auto;
            display: block;
        }

        .feature-container .item h2 {
            font-size: 1.5rem;
            color: #333;
            margin-top: 15px;
            margin-bottom: 10px;
        }

        .feature-container .item p {
            font-size: 0.9rem;
            color: #666;
            padding: 0 15px;
            line-height: 1.6;
        }

        .knife {
            text-align: center;
        }

        .knife img {
            width: 80%;
            text-align: center;
        }

        @media (min-width: 768px) {
            .feature-container {
                justify-content: space-between;
            }

            .feature-container .item {
                width: calc(33.333% - 20px);
            }

        }

        /* ==================================== */
        /* 包丁診断システムセクション */
        /* ==================================== */
        .quiz-section {
            background-color: #f0f4f8;
            padding: 80px 0;
            text-align: center;
        }

        .quiz-container {
            background-color: #ffffff;
            border-radius: 25px;
            padding: 40px;
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
            max-width: 1000px;
            margin: 0 auto;
        }

        .quiz-header {
            margin-bottom: 40px;
        }

        .quiz-header h2 {
            font-size: 2rem;
            color: var(--heading-color);
            margin-bottom: 10px;
        }

        .quiz-header p {
            font-size: 1rem;
            color: #666;
        }

        .quiz-content h1,
        .quiz-content h2 {
            color: #2c3e50;
            margin-bottom: 30px;
        }

        .quiz-content h1 {
            font-size: 1.8em;
        }

        .question-text {
            font-size: 1.0em;
            margin-bottom: 25px;
            font-weight: 500;
        }

        .answers-container {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .answers-container button {
            background-color: #e8f0f8;
            color: #34495e;
            border: none;
            border-radius: 15px;
            padding: 15px 25px;
            font-size: 1.1em;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        }

        .answers-container button:hover {
            background-color: #dbe4ee;
            transform: translateY(-2px);
            box-shadow: 0 6px 10px rgba(0, 0, 0, 0.15);
        }

        #result-display {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 20px;
        }

        .result-knife {
            background-color: #f9f9f9;
            border: 2px solid #34495e;
            border-radius: 20px;
            padding: 25px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            animation: fadeIn 1s ease-in-out;
            max-width: 90%;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .result-title {
            font-size: 1.5em;
            font-weight: 700;
            margin-bottom: 10px;
            color: #2c3e50;
        }

        .result-description {
            font-size: 1em;
            line-height: 1.6;
        }

        .action-buttons {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-top: 30px;
        }

        .action-buttons button {
            background-color: #2ecc71;
            color: #fff;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        }

        .action-buttons button:hover {
            background-color: #27ae60;
        }

        .action-buttons button.restart-button {
            background-color: #3498db;
            border: none;
            padding: 1.5rem 6rem;
            border-radius: 5rem;
            margin-bottom: 2rem;
        }

        .action-buttons button.restart-button:hover {
            background-color: #2980b9;
        }

        /* ==================================== */
        /* フッター */
        /* ==================================== */
        .footer {
            background-color: var(--background-dark);
            color: var(--secondary-color);
            padding: 40px 0 20px;
        }

        .footer .container {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 20px;
        }

        .footer-logo {
            font-family: 'Zen Antique Soft', serif;
            font-size: 2rem;
            font-weight: bold;
            color: #fff;
        }

        .footer-logo a {
            text-decoration: none;
            color: inherit;
        }

        .footer-nav ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 15px 30px;
        }

        .footer-nav a {
            color: var(--secondary-color);
            text-decoration: none;
            font-weight: bold;
            transition: color 0.3s ease;
        }

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

        .social-links {
            display: flex;
            gap: 20px;
        }

        .social-links a {
            color: var(--secondary-color);
            font-size: 24px;
            transition: color 0.3s ease;
        }

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

        .footer-copyright {
            margin-top: 20px;
            font-size: 0.9rem;
            color: #888;
        }

        /* ==================================== */
        /* EXPO*/
        /* ==================================== */
        .expo-main {
            background: #333;
        }

        .expo-main .hero {
            height: auto;
            padding-bottom: 0;
        }

        .expo-section {
            text-align: left;
            border-bottom: 1px solid #fff;
            padding: 2rem 0;
        }

        .expo-section p {
            text-align: left;
        }

        .expo-section .section {
            padding: 20px 0;
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }

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

        .expo-section .section-header {
            text-align: center;
            margin-bottom: 0px;
        }

        .expo-section .section-header p {
            margin: 20px 0;
        }

        .expo-section img {
            max-width: 100%;
        }

        .exhibit-list {
            color: #fff;
            margin: 40px 0;
        }

        .exhibit-list h3 {
            text-align: center;
            background: #fff;
            color: #333;
            padding: 0.5rem;
        }

        .exhibit-list ul {
            padding: 0;
        }

        .exhibit-list li {
            list-style: none;
            border-bottom: 1px solid #fff;
            padding: 5px;
        }

        .exhibit-list li a {
            color: #fff;
            text-decoration: none;
            display: block;
            width: 100%;
            height: auto;
        }

        .result-image {
            width: 60%;
        }

        /* ==================================== */
        /* PC向けスタイル（768px以上） */
        /* ==================================== */
        @media (min-width: 768px) {
            .hero h1 {
                font-size: 3.5rem;
            }

            /*
            .hero p {
                font-size: 1.4rem;
            }*/
            .features-grid,
            .about-grid {
                flex-direction: row;
            }

            .feature-card,
            .about-item {
                flex: 1;
            }

            .product-item {
                width: calc(26% - 16px);
            }

            .handle-item {
                width: calc(20% - 16px);
            }

            .handles-grid {
                flex-direction: row;
                flex-wrap: wrap;
            }

            .tatara-item {
                flex-direction: row;
                align-items: center;
                text-align: left;
            }

            .tatara-item.tamahagane {
                flex-direction: row-reverse;
                text-align: left;
            }

            .tatara-item img {
                width: 45%;
                margin-right: 40px;
                margin-bottom: 0;
            }

            .tatara-item.tamahagane img {
                margin-right: 0;
                margin-left: 40px;
            }

            .footer .container {
                flex-direction: row;
                justify-content: space-between;
                align-items: center;
                text-align: left;
            }

            .footer-nav {
                flex-grow: 1;
                margin-left: 40px;
            }

            .footer-copyright {
                margin-top: 0;
            }

            /* バナーのPC向け調整 */
            .hero-banner-container {
                flex-direction: row;
            }

            .hero-banner-text h3 {
                font-size: 1.4rem;
            }

            .hero-banner-text p {
                font-size: 0.9rem;
            }

            /* モーダルのPC向け調整 */
            .modal-content {
                max-width: 900px;
            }

            .modal-body {
                flex-direction: row;
            }

            .modal-image-container {
                flex-basis: 50%;
                padding: 40px;
            }

            .modal-text-container {
                flex-basis: 50%;
                padding: 40px;
            }

            .modal-close {
                color: #333;
                text-shadow: none;
            }
        }


        /* ==================================== */
        /* モバイル向けスタイル（767px以下） */
        /* ==================================== */
        @media (max-width: 767px) {
            .hero .container {
                padding: 0;
            }

            .hero .cta-container {
                padding: 1rem;
                width: fit-content;
            }

            .hero .hero-text-box h1 {
                font-size: 2.6rem;

            }

            .top-text {
                width: 100%;
            }

            .expo-link img {
                width: 100%;
            }

            .expo-link .sp {
                display: block;
            }

            .expo-link .pc {
                display: none;
            }

            .quiz-link {
                width: 100%;
                position: inherit;
            }

            .quiz-link img {
                width: 100%;
                border-radius: 20px;
            }

            .quiz-link .sp {
                display: block;
            }

            .quiz-link .pc {
                display: none;
            }

            .nav-list {
                position: fixed;
                /*top: var(--header-height);*/
                left: 0;
                width: 100%;
                height: calc(110vh - var(--header-height));
                background-color: rgba(255, 255, 255, 0.95);
                backdrop-filter: blur(5px);
                z-index: 150;
                flex-direction: column;
                justify-content: flex-start;
                align-items: center;
                padding-top: 60px 0 40px 0;
                transform: translateY(-100%);
                transition: transform 0.4s ease-out, opacity 0.4s ease-out;
                opacity: 0;
            }

            .nav-list.active {
                position: absolute;
                display: flex;
                transform: translateY(0);
                opacity: 1;
                top: 0;
                padding-top: 5rem;
            }

            .nav-list ul {
                flex-direction: column;
                gap: 30px;
                text-align: center;
            }

            .nav-list a {
                color: var(--text-color);
                font-size: 1.5rem;
            }

            .menu-toggle {
                display: flex;
            }

            .section-header h2 {
                font-size: 1.8rem;
            }

            .about-item h3 {
                font-size: 1.5rem;
            }

            .product-item {
                width: calc(50% - 10px);
            }

            .handle-item {
                width: calc(50% - 10px);
            }

            .tatara-item img {
                width: 80%;
            }

            .tatara-container {
                gap: 60px;
            }

            .quiz-container {
                padding: 20px;
                width: calc(100% - 60px);
            }

            .quiz-header h2 {
                font-size: 1.5em;
            }

            .quiz-content h1 {
                font-size: 1.3em;
            }

            .quiz-content h2 {
                font-size: 1.1em;
            }

            /* バナーのモバイル向け調整 */
            .hero-banner-container {
                bottom: 24px;
            }

            .hero-banner-text h3 {
                font-size: 1rem;
            }

            .hero-banner-text p {
                font-size: 0.7rem;
            }

            /* モーダルのモバイル向け調整 */

            #modalBody {
                max-height: 80vh;
                overflow-y: scroll;
            }

            .modal-content {
                max-width: 80%;
            }

            .modal-body {
                flex-direction: column;
            }

            .modal-image-container {
                order: 1;
            }

            .modal-text-container {
                order: 2;
            }

            .modal-text-content {
                max-height: 30vh;
            }

            .default-modal {
                display: block;
                text-align: center;
            }

            .default-modal img {
                width: 70%;
            }

            .default-modal p {
                text-align: left;
                width: 100%;
            }

            .knife img {
                width: 100%;
            }

            .knives-text {
                text-align: left;
            }

            .feature-container p {
                text-align: left;
            }

            .result-image {
                width: 100%;
            }

            .hero2 {
                background-image: url(../img/top-back-sp.png);
                background-size: cover;
                background-position: inherit;
            }

            .hero2 .cta-container {
                padding: 20px 40px;
            }

        }