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

    body {
        font-family: "Hiragino Kaku Gothic ProN", "ヒラギノ角ゴ ProN W6", "Yu Gothic", "游ゴシック", "Meiryo", sans-serif;
        font-weight: 500;
        background-color: #fff;
        color: #666;
        line-height: 1.7;
    }

    /* 見出しは明朝体 */
    h1, h2, h3, h4, h5, h6 {
        font-family: "游明朝", "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", "HG明朝E", "ＭＳ Ｐ明朝", "MS PMincho", serif;
        font-weight: 800;
        color: #333;
    }

    /* ヘッダー */
    header {
        background-color: #fff;
        border-bottom: 1px solid #e0e0e0;
        position: sticky;
        top: 0;
        z-index: 100;
    }

    .header-container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 15px 20px;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .logo {
        display: flex;
        align-items: center;
        text-decoration: none;
        color: #333;
    }

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

    nav ul {
        display: flex;
        list-style: none;
        gap: 30px;
    }

    nav a {
        text-decoration: none;
        color: #666;
        font-size: 14px;
        font-weight: 500;
        transition: color 0.3s;
        white-space: nowrap;
    }

    nav a:hover {
        color: #000;
    }

    /* ハンバーガーメニュー */
    .hamburger {
        display: none;
        flex-direction: column;
        gap: 5px;
        cursor: pointer;
        padding: 10px;
    }
    
    .hamburger span {
        display: block;
        width: 25px;
        height: 3px;
        background: #666;
        transition: all 0.3s;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    /* メインコンテンツ */
    main {
        max-width: 1200px;
        margin: 3rem auto;
        padding: 0 2rem;
    }

    .page-title {
        text-align: center;
        margin-bottom: 1rem;
        color: #333;
        font-size: 2rem;
    }

    .page-subtitle {
        text-align: center;
        margin-bottom: 2rem;
        color: #666;
        font-size: 1rem;
    }

    /* 注意事項 */
    .notice-box {
        background: #fff9e6;
        border-left: 4px solid #f4a460;
        padding: 1.5rem;
        margin-bottom: 2rem;
        border-radius: 4px;
    }

    .notice-box h3 {
        color: #8b6914;
        margin-bottom: 0.75rem;
        font-size: 1.1rem;
    }

    .notice-box ul {
        margin-left: 1.5rem;
        color: #666;
    }

    .notice-box li {
        margin-bottom: 0.5rem;
    }

    /* カテゴリタブ */
    .category-tabs {
        display: flex;
        gap: 0.75rem;
        margin-bottom: 2rem;
        flex-wrap: wrap;
    }

    .category-tab {
        padding: 0.75rem 1.5rem;
        background: #fff;
        border: 1px solid #e0e0e0;
        border-radius: 25px;
        cursor: pointer;
        transition: all 0.3s;
        font-weight: 500;
        color: #666;
    }

    .category-tab:hover {
        border-color: #333;
        color: #333;
    }

    .category-tab.active {
        background: #333;
        color: #fff;
        border-color: #333;
    }

    /* メニューグリッド */
    .menu-grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: 2rem;
        margin-bottom: 3rem;
    }

    .menu-card {
        background: #fff;
        border: 1px solid #e0e0e0;
        border-radius: 4px;
        overflow: hidden;
        transition: transform 0.3s, box-shadow 0.3s;
    }

    .menu-card:hover {
        transform: translateY(-4px);
        box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    }

    .menu-image {
        width: 100%;
        height: 200px;
        object-fit: cover;
        background: #f5f5f5;
    }

    .menu-content {
        padding: 1.5rem;
    }

    .menu-name {
        font-size: 1.2rem;
        font-weight: 700;
        margin-bottom: 0.5rem;
        color: #333;
    }

    .menu-description {
        font-size: 0.9rem;
        color: #666;
        margin-bottom: 1rem;
        line-height: 1.6;
    }

    .menu-footer {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .menu-price {
        font-size: 1.3rem;
        font-weight: 700;
        color: #f4a460;
    }

    .add-to-cart-btn {
        padding: 0.5rem 1.5rem;
        background: #333;
        color: #fff;
        border: none;
        border-radius: 25px;
        cursor: pointer;
        font-weight: 500;
        transition: all 0.3s;
        font-size: 0.9rem;
    }

    .add-to-cart-btn:hover {
        background: #000;
    }

    /* カート */
    .cart-container {
        position: fixed;
        bottom: 2rem;
        right: 2rem;
        z-index: 200;
    }

    .cart-button {
        width: 60px;
        height: 60px;
        border-radius: 50%;
        background: #333;
        color: #fff;
        border: none;
        box-shadow: 0 4px 12px rgba(0,0,0,0.2);
        cursor: pointer;
        font-size: 1.5rem;
        position: relative;
        transition: all 0.3s;
    }

    .cart-button:hover {
        background: #000;
        transform: scale(1.1);
    }

    .cart-badge {
        position: absolute;
        top: -5px;
        right: -5px;
        background: #f4a460;
        color: #fff;
        width: 24px;
        height: 24px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 0.8rem;
        font-weight: 700;
    }

    /* カートモーダル */
    .modal {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
        z-index: 300;
        align-items: center;
        justify-content: center;
    }

    .modal.show {
        display: flex;
    }

    .modal-content {
        background: #fff;
        width: 90%;
        max-width: 600px;
        max-height: 90vh;
        border-radius: 4px;
        overflow: hidden;
        display: flex;
        flex-direction: column;
    }

    .modal-header {
        padding: 1.5rem;
        border-bottom: 1px solid #e0e0e0;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .modal-header h2 {
        font-size: 1.5rem;
    }

    .close-btn {
        background: none;
        border: none;
        font-size: 1.5rem;
        cursor: pointer;
        color: #666;
    }

    .modal-body {
        padding: 1.5rem;
        overflow-y: auto;
        flex: 1;
    }

    .cart-item {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 1rem 0;
        border-bottom: 1px solid #e0e0e0;
    }

    .cart-item-info {
        flex: 1;
    }

    .cart-item-name {
        font-weight: 700;
        margin-bottom: 0.25rem;
        color: #333;
    }

    .cart-item-price {
        color: #666;
        font-size: 0.9rem;
    }

    .cart-item-controls {
        display: flex;
        align-items: center;
        gap: 0.5rem;
    }

    .quantity-btn {
        width: 30px;
        height: 30px;
        border: 1px solid #e0e0e0;
        background: #fff;
        border-radius: 50%;
        cursor: pointer;
        font-weight: 700;
        color: #333;
    }

    .quantity {
        min-width: 30px;
        text-align: center;
        font-weight: 700;
        color: #333;
    }

    .remove-btn {
        background: none;
        border: none;
        color: #d32f2f;
        cursor: pointer;
        padding: 0.5rem;
        font-size: 1.2rem;
    }

    .cart-total {
        padding: 1rem 0;
        margin-top: 1rem;
        border-top: 2px solid #e0e0e0;
        display: flex;
        justify-content: space-between;
        align-items: center;
        font-size: 1.3rem;
        font-weight: 700;
        color: #333;
    }

    .checkout-btn {
        width: 100%;
        padding: 1rem;
        background: #333;
        color: #fff;
        border: none;
        border-radius: 4px;
        font-size: 1.1rem;
        font-weight: 700;
        cursor: pointer;
        margin-top: 1rem;
    }

    .checkout-btn:hover {
        background: #000;
    }

    .checkout-btn:disabled {
        background: #ccc;
        cursor: not-allowed;
    }

    .empty-cart {
        text-align: center;
        padding: 3rem;
        color: #666;
    }

    /* 注文フォーム */
    .order-form {
        display: grid;
        gap: 1.5rem;
    }

    .form-group {
        display: flex;
        flex-direction: column;
        gap: 0.5rem;
    }

    .form-group label {
        font-weight: 500;
        color: #333;
    }

    .form-group input,
    .form-group textarea,
    .form-group select {
        padding: 0.75rem;
        border: 1px solid #e0e0e0;
        border-radius: 4px;
        font-size: 1rem;
        font-family: inherit;
    }

    .form-group textarea {
        resize: vertical;
        min-height: 80px;
    }

    .form-row {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 1rem;
    }

    .required {
        color: #d32f2f;
    }

    /* ローディング */
    .loading {
        text-align: center;
        padding: 3rem;
    }

    .spinner {
        border: 3px solid #e0e0e0;
        border-top: 3px solid #333;
        border-radius: 50%;
        width: 40px;
        height: 40px;
        animation: spin 1s linear infinite;
        margin: 0 auto 1rem;
    }

    @keyframes spin {
        0% { transform: rotate(0deg); }
        100% { transform: rotate(360deg); }
    }

    /* エラー・成功メッセージ */
    .message {
        padding: 1rem;
        border-radius: 4px;
        margin-bottom: 1rem;
    }

    .message.error {
        background: #ffebee;
        color: #d32f2f;
        border-left: 4px solid #d32f2f;
    }

    .message.success {
        background: #e8f5e9;
        color: #2e7d32;
        border-left: 4px solid #2e7d32;
    }

    /* フッター */
    footer {
        background: #2c3e50;
        color: #fff;
        padding: 60px 0 20px;
    }

    .footer-content {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 40px;
        margin-bottom: 40px;
    }

    .footer-widget h4 {
        margin-bottom: 20px;
        font-size: 16px;
        color: #fff;
    }

    .footer-widget p,
    .footer-widget a {
        color: #bbb;
        font-size: 14px;
        line-height: 2;
        text-decoration: none;
    }

    .footer-widget a:hover {
        color: #fff;
    }

    .footer-bottom {
        border-top: 1px solid #444;
        padding-top: 20px;
        text-align: center;
        color: #888;
        font-size: 12px;
    }

    /* レスポンシブ */
    @media (max-width: 768px) {
        .header-container {
            flex-direction: column;
            gap: 1rem;
        }

        nav ul {
            flex-wrap: wrap;
            justify-content: center;
            gap: 1rem;
        }

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

        .form-row {
            grid-template-columns: 1fr;
        }

        .cart-container {
            bottom: 1rem;
            right: 1rem;
        }
        
        .footer-content {
            grid-template-columns: 1fr;
            gap: 30px;
        }
    }

    /* スマートフォン用（iPhone SE3対応） */
    @media (max-width: 480px) {
        .header-container {
            padding: 10px 15px;
            justify-content: center;
            position: relative;
        }
        
        .logo {
            margin: 0 auto;
        }
        
        .logo img {
            height: 40px;
        }
        
        /* ハンバーガーメニュー表示 */
        .hamburger {
            display: flex;
            position: absolute;
            right: 15px;
            top: 50%;
            transform: translateY(-50%);
        }
        
        nav ul {
            position: fixed;
            top: 60px;
            left: -100%;
            width: 80%;
            max-width: 300px;
            height: calc(100vh - 60px);
            background: white;
            flex-direction: column;
            gap: 0;
            padding: 20px 0;
            box-shadow: 2px 0 10px rgba(0,0,0,0.1);
            transition: left 0.3s;
            z-index: 999;
        }
        
        nav ul.active {
            left: 0;
        }
        
        nav li {
            width: 100%;
            border-bottom: 1px solid #e0e0e0;
        }
        
        nav a {
            display: block;
            padding: 15px 20px;
            font-size: 14px;
        }
        
        main {
            padding: 0 1rem;
        }
        
        .page-title {
            font-size: 1.5rem;
        }
        
        .page-subtitle {
            font-size: 0.9rem;
        }
        
        .notice-box {
            padding: 1rem;
        }
        
        .notice-box h3 {
            font-size: 0.95rem;
        }
        
        .notice-box ul {
            margin-left: 1rem;
        }
        
        .notice-box li {
            font-size: 0.85rem;
            line-height: 1.6;
        }
    }