/* === ベースのリセットとフォント設定 === */
:root {
    --primary-color: #48a3c6;
    --secondary-color: #e8f5f9;
    --accent-color: #1c6f8b;
    --text-color: #333;
    --text-light: #666;
    --text-dark: #222;
    --bg-color: #fff;
    --bg-light: #f9fcfe;
    --border-color: #e0eef4;
    --success-color: #4caf50;
    --error-color: #f44336;
    --warning-color: #ff9800;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.1);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --font-main: 'Noto Sans JP', 'Hiragino Sans', 'Hiragino Kaku Gothic ProN', Meiryo, sans-serif;
    --font-accent: 'Yu Mincho', 'YuMincho', serif;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* ダークモード用の変数 */
    --dark-primary-color: #65b8d9;
    --dark-secondary-color: #1e3a48;
    --dark-accent-color: #8ccdea;
    --dark-text-color: #e0e0e0;
    --dark-text-light: #b0b0b0;
    --dark-text-dark: #f5f5f5;
    --dark-bg-color: #121e24;
    --dark-bg-light: #1a2c36;
    --dark-border-color: #2d4452;
}

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

body {
    font-family: var(--font-main);
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 1.6;
    font-size: 16px;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

ul, ol {
    list-style-position: inside;
}

/* === コンテナとグリッドレイアウト === */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

/* === ヘッダーとナビゲーション === */
header {
    background-color: var(--bg-color);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo {
    display: flex;
    align-items: center;
}

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

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

nav ul li {
    margin-left: 30px;
}

nav ul li a {
    color: var(--text-color);
    font-weight: 500;
    position: relative;
    transition: color var(--transition-fast);
}

nav ul li a:hover, nav ul li a.active {
    color: var(--primary-color);
}

nav ul li a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
}

.cart-icon {
    position: relative;
}

.cart-icon a {
    font-size: 1.2rem;
}

#cart-count {
    position: absolute;
    top: -8px;
    right: -8px;
    background-color: var(--primary-color);
    color: white;
    font-size: 0.7rem;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: background-color var(--transition-fast);
}

/* === ヒーローセクション === */
.hero {
    background-color: var(--secondary-color);
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: background-color var(--transition-normal);
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -50px;
    left: 0;
    width: 100%;
    height: 100px;
    background: linear-gradient(to bottom, rgba(232, 245, 249, 0), rgba(255, 255, 255, 1));
    z-index: 1;
    transition: background var(--transition-normal);
}

.hero .container {
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-family: var(--font-accent);
    font-size: 3rem;
    margin-bottom: 20px;
    line-height: 1.2;
    color: var(--text-dark);
}

.hero p {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto 30px;
    color: var(--text-light);
}

/* === ボタンスタイル === */
.btn-primary, .btn-secondary, .add-to-cart, .btn-buy-now,
.btn-add-to-cart, .btn-checkout, .btn-continue-shopping,
.btn-place-order, .btn-submit, .btn-cookie-accept, 
.btn-cookie-customize, .btn-cookie-decline, .btn-load-map {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    outline: none;
    font-family: var(--font-main);
}

.btn-primary, .btn-add-to-cart, .btn-checkout, .btn-place-order,
.btn-submit, .btn-cookie-accept {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover, .btn-add-to-cart:hover, .btn-checkout:hover,
.btn-place-order:hover, .btn-submit:hover, .btn-cookie-accept:hover {
    background-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary, .add-to-cart, .btn-continue-shopping, 
.btn-cookie-customize, .btn-load-map {
    background-color: var(--secondary-color);
    color: var(--accent-color);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover, .add-to-cart:hover, .btn-continue-shopping:hover,
.btn-cookie-customize:hover, .btn-load-map:hover {
    background-color: var(--accent-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-buy-now {
    background-color: var(--accent-color);
    color: white;
}

.btn-buy-now:hover {
    background-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-cookie-decline {
    background-color: transparent;
    color: var(--text-light);
    border: 1px solid var(--border-color);
}

.btn-cookie-decline:hover {
    background-color: var(--error-color);
    color: white;
    border-color: var(--error-color);
}

/* === 特徴セクション === */
.features {
    padding: 80px 0;
}

.features h2, .product-info h2, .comparison-table h2, .products h2 {
    text-align: center;
    font-family: var(--font-accent);
    font-size: 2.2rem;
    margin-bottom: 50px;
    color: var(--text-dark);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.feature-item {
    text-align: center;
    padding: 30px;
    border-radius: var(--radius-lg);
    background-color: var(--bg-light);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), 
                background-color var(--transition-normal);
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 20px;
    font-size: 1.8rem;
    transition: background-color var(--transition-normal);
}

.feature-item h3 {
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.stats {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    margin: 50px 0;
    text-align: center;
}

.stat-item {
    padding: 20px;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 5px;
    transition: color var(--transition-normal);
}

.stat-text {
    font-size: 1rem;
    color: var(--text-light);
}

/* === 製品情報セクション === */
.product-info {
    padding: 80px 0;
    background-color: var(--bg-light);
    transition: background-color var(--transition-normal);
}

.product-info p {
    margin-bottom: 20px;
    line-height: 1.8;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.certification {
    max-width: 800px;
    margin: 40px auto 0;
    padding: 30px;
    border-radius: var(--radius-lg);
    background-color: var(--bg-color);
    box-shadow: var(--shadow-sm);
    transition: background-color var(--transition-normal);
}

.certification h3 {
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.certification ul {
    list-style-type: disc;
    padding-left: 20px;
    margin-bottom: 20px;
}

.certification li {
    margin-bottom: 8px;
}

/* === 比較表セクション === */
.comparison-table {
    padding: 80px 0;
}

.comparison-table table {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    border-collapse: collapse;
    box-shadow: var(--shadow-md);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.comparison-table th, .comparison-table td {
    padding: 15px 20px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    transition: border-color var(--transition-normal);
}

.comparison-table th {
    background-color: var(--primary-color);
    color: white;
    font-weight: 600;
    transition: background-color var(--transition-normal);
}

.comparison-table th:first-child {
    width: 30%;
}

.comparison-table tr:nth-child(even) {
    background-color: var(--bg-light);
    transition: background-color var(--transition-normal);
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

/* === 商品セクション === */
.products {
    padding: 80px 0;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
    gap: 30px;
}

.product-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    background-color: var(--bg-light);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast),
                background-color var(--transition-normal);
}

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

.product-card a {
    color: inherit;
    text-decoration: none;
    display: block;
}

.product-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.product-card h3, .product-card .product-description, .product-card .product-price {
    padding: 0 20px;
}

.product-card h3 {
    margin: 20px 0 10px;
    font-size: 1.2rem;
    color: var(--text-dark);
}

.product-card .product-description {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 10px;
    height: 40px;
    overflow: hidden;
}

.product-card .product-price {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 20px;
    transition: color var(--transition-normal);
}

.product-card .add-to-cart {
    width: 100%;
    padding: 15px;
    border-radius: 0;
    background-color: var(--secondary-color);
    color: var(--accent-color);
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.product-card .add-to-cart:hover {
    background-color: var(--primary-color);
    color: white;
}

/* === 製品詳細ページ === */
.product-detail {
    padding: 50px 0;
}

.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: start;
}

.breadcrumb {
    margin-bottom: 20px;
    font-size: 0.9rem;
    color: var(--text-light);
}

.breadcrumb a {
    color: var(--text-light);
}

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

.product-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

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

.product-info h1 {
    font-size: 2rem;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.product-meta {
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.product-rating {
    display: flex;
    align-items: center;
}

.product-rating i {
    color: #FFD700;
    margin-right: 2px;
}

.product-rating span {
    margin-left: 10px;
    color: var(--text-light);
}

.product-id {
    color: var(--text-light);
}

.product-price {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 20px;
    transition: color var(--transition-normal);
}

.product-description p {
    margin-bottom: 15px;
    line-height: 1.8;
}

.product-features, .product-usage {
    margin: 30px 0;
}

.product-features h3, .product-usage h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.product-features ul, .product-usage ol {
    padding-left: 20px;
}

.product-features li, .product-usage li {
    margin-bottom: 8px;
}

.product-actions {
    margin: 30px 0;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.quantity-selector {
    display: flex;
    flex-direction: column;
    margin-right: 20px;
}

.quantity-selector label {
    margin-bottom: 5px;
    font-size: 0.9rem;
    color: var(--text-light);
}

.quantity-controls {
    display: flex;
    align-items: center;
}

.quantity-controls button {
    width: 30px;
    height: 30px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-color);
    color: var(--text-color);
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all var(--transition-fast);
}

.quantity-controls button:hover {
    background-color: var(--primary-color);
    color: white;
}

.quantity-controls input {
    width: 50px;
    height: 30px;
    border: 1px solid var(--border-color);
    text-align: center;
    margin: 0 5px;
}

.btn-add-to-cart, .btn-buy-now {
    padding: 12px 30px;
    font-weight: 500;
}

.product-tags {
    margin-top: 30px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag {
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    background-color: var(--secondary-color);
    color: var(--accent-color);
    font-size: 0.8rem;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* === 製品詳細タブ === */
.product-details-tabs {
    padding: 50px 0;
    background-color: var(--bg-light);
    transition: background-color var(--transition-normal);
}

.tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
    transition: border-color var(--transition-normal);
}

.tab-button {
    padding: 15px 30px;
    background-color: transparent;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-light);
    position: relative;
    transition: color var(--transition-fast);
}

.tab-button:hover {
    color: var(--primary-color);
}

.tab-button.active {
    color: var(--primary-color);
}

.tab-button.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--primary-color);
}

.tab-content {
    max-width: 800px;
    margin: 0 auto;
    display: none;
}

.tab-content.active {
    display: block;
}

.tab-content h2 {
    font-size: 1.8rem;
    margin-bottom: 30px;
    text-align: center;
    color: var(--text-dark);
}

.eco-certification, .ingredients-list, .safety-info, .technology-specs, 
.cleaning-system, .tablet-info, .materials-list, .craftsmanship {
    margin: 30px 0;
    padding: 30px;
    background-color: var(--bg-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: background-color var(--transition-normal);
}

.eco-certification h3, .ingredients-list h3, .safety-info h3, .technology-specs h3,
.cleaning-system h3, .tablet-info h3, .materials-list h3, .craftsmanship h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.cleaning-system ol {
    padding-left: 20px;
}

.cleaning-system li {
    margin-bottom: 10px;
}

.cleaning-system strong {
    color: var(--accent-color);
}

/* === レビュー === */
.review-summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    background-color: var(--bg-color);
    padding: 30px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: background-color var(--transition-normal);
}

.average-rating {
    text-align: center;
}

.rating-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    display: block;
    margin-bottom: 5px;
    transition: color var(--transition-normal);
}

.stars {
    color: #FFD700;
    font-size: 1.2rem;
    margin-bottom: 5px;
}

.total-reviews {
    font-size: 0.9rem;
    color: var(--text-light);
}

.rating-bars {
    width: 60%;
}

.rating-bar {
    display: flex;
    align-items: center;
    margin-bottom: 8px;
}

.rating-label {
    width: 60px;
    font-size: 0.9rem;
    color: var(--text-light);
}

.bar-container {
    flex: 1;
    background-color: var(--bg-light);
    height: 10px;
    border-radius: 5px;
    margin: 0 15px;
    overflow: hidden;
    transition: background-color var(--transition-normal);
}

.bar {
    height: 100%;
    background-color: var(--primary-color);
    transition: background-color var(--transition-normal);
}

.rating-percent {
    width: 40px;
    font-size: 0.9rem;
    color: var(--text-light);
    text-align: right;
}

.customer-reviews {
    margin-top: 40px;
}

.review-item {
    background-color: var(--bg-color);
    border-radius: var(--radius-lg);
    padding: 25px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
    transition: background-color var(--transition-normal);
}

.reviewer-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
}

.reviewer-name {
    font-weight: 600;
}

.review-date {
    font-size: 0.9rem;
    color: var(--text-light);
}

.review-rating {
    margin-bottom: 10px;
    color: #FFD700;
}

.review-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.review-content p {
    line-height: 1.7;
}

/* === 関連商品 === */
.related-products {
    padding: 80px 0;
}

.related-products h2 {
    font-size: 1.8rem;
    margin-bottom: 40px;
    text-align: center;
    color: var(--text-dark);
}

/* === カートページ === */
.cart-section {
    padding: 50px 0;
}

.cart-section h1 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 2rem;
    color: var(--text-dark);
}

.cart-empty {
    text-align: center;
    padding: 50px;
    background-color: var(--bg-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: background-color var(--transition-normal);
}

.cart-empty i {
    font-size: 3rem;
    color: var(--text-light);
    margin-bottom: 20px;
}

.cart-empty p {
    margin-bottom: 30px;
    color: var(--text-light);
}

.cart-items {
    margin-bottom: 30px;
}

.cart-item {
    display: flex;
    align-items: center;
    padding: 20px;
    background-color: var(--bg-light);
    border-radius: var(--radius-lg);
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
    transition: background-color var(--transition-normal);
}

.cart-item-image {
    width: 100px;
    margin-right: 20px;
}

.cart-item-image img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-md);
}

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

.cart-item-name {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 5px;
    color: var(--text-dark);
}

.cart-item-price {
    color: var(--text-light);
}

.cart-item-quantity {
    margin: 0 30px;
    display: flex;
    align-items: center;
}

.cart-item-quantity input {
    width: 50px;
    height: 30px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: border-color var(--transition-normal);
}

.cart-item-quantity button {
    width: 30px;
    height: 30px;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.cart-item-quantity button:hover {
    background-color: var(--primary-color);
    color: white;
}

.cart-item-subtotal {
    min-width: 100px;
    text-align: right;
    font-weight: 600;
    color: var(--primary-color);
    transition: color var(--transition-normal);
}

.cart-item-remove button {
    width: 40px;
    height: 40px;
    border: none;
    background-color: transparent;
    color: var(--text-light);
    cursor: pointer;
    transition: color var(--transition-fast);
}

.cart-item-remove button:hover {
    color: var(--error-color);
}

.cart-summary {
    background-color: var(--bg-light);
    padding: 30px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: background-color var(--transition-normal);
}

.cart-totals {
    margin-bottom: 30px;
}

.subtotal, .tax, .shipping, .total {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
    padding: 5px 0;
}

.subtotal, .tax, .shipping {
    color: var(--text-light);
    border-bottom: 1px solid var(--border-color);
    transition: border-color var(--transition-normal);
}

.total {
    font-weight: 600;
    font-size: 1.2rem;
    color: var(--text-dark);
}

.cart-actions {
    display: flex;
    gap: 20px;
    justify-content: space-between;
}

.btn-continue-shopping, .btn-checkout {
    flex: 1;
}

.cart-recommendations {
    padding: 80px 0;
    background-color: var(--bg-light);
    transition: background-color var(--transition-normal);
}

.cart-recommendations h2 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 1.8rem;
    color: var(--text-dark);
}

/* === チェックアウトページ === */
.checkout-section {
    padding: 50px 0;
}

.checkout-section h1 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 2rem;
    color: var(--text-dark);
}

.checkout-container {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 40px;
}

.checkout-details {
    background-color: var(--bg-light);
    border-radius: var(--radius-lg);
    padding: 30px;
    box-shadow: var(--shadow-sm);
    transition: background-color var(--transition-normal);
}

.checkout-form h2 {
    font-size: 1.5rem;
    margin-bottom: 30px;
    color: var(--text-dark);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: var(--font-main);
    font-size: 1rem;
    transition: border-color var(--transition-fast), 
                background-color var(--transition-normal), 
                color var(--transition-normal);
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    border-color: var(--primary-color);
    outline: none;
}

.terms-agreement {
    display: flex;
    align-items: flex-start;
}

.terms-agreement input {
    width: auto;
    margin-right: 10px;
    margin-top: 4px;
}

.terms-agreement label {
    font-size: 0.9rem;
}

.required {
    color: var(--error-color);
    margin-left: 3px;
}

.btn-place-order {
    width: 100%;
    padding: 15px;
    font-weight: 600;
    font-size: 1.1rem;
    margin-top: 20px;
}

.checkout-summary {
    background-color: var(--bg-light);
    border-radius: var(--radius-lg);
    padding: 30px;
    box-shadow: var(--shadow-sm);
    transition: background-color var(--transition-normal);
}

.checkout-summary h2 {
    font-size: 1.5rem;
    margin-bottom: 30px;
    color: var(--text-dark);
}

.checkout-items {
    margin-bottom: 30px;
}

.checkout-item {
    display: flex;
    align-items: center;
    padding: 15px 0;
    border-bottom: 1px solid var(--border-color);
    transition: border-color var(--transition-normal);
}

.checkout-item:last-child {
    border-bottom: none;
}

.checkout-item-image {
    width: 70px;
    margin-right: 15px;
}

.checkout-item-image img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
}

.checkout-item-details {
    flex: 1;
}

.checkout-item-name {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 5px;
    color: var(--text-dark);
}

.checkout-item-info {
    display: flex;
    justify-content: space-between;
    color: var(--text-light);
    font-size: 0.9rem;
}

.checkout-totals {
    margin-top: 30px;
}

/* === 注文成功ページ === */
.success-section {
    padding: 50px 0;
}

.success-message {
    text-align: center;
    padding: 50px;
    background-color: var(--bg-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: 50px;
    transition: background-color var(--transition-normal);
}

.success-icon {
    font-size: 3.5rem;
    color: var(--success-color);
    margin-bottom: 20px;
}

.success-message h1 {
    font-size: 2rem;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.success-message p {
    margin-bottom: 30px;
    color: var(--text-light);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.success-actions {
    margin-top: 30px;
}

.after-purchase-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.info-card {
    background-color: var(--bg-light);
    padding: 30px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: background-color var(--transition-normal);
}

.info-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    transition: color var(--transition-normal);
}

.info-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.recommended-products {
    padding: 80px 0;
    background-color: var(--bg-light);
    transition: background-color var(--transition-normal);
}

.recommended-products h2 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 1.8rem;
    color: var(--text-dark);
}

/* === 会社概要ページ === */
.about-hero, .contact-hero {
    background-color: var(--secondary-color);
    padding: 80px 0;
    text-align: center;
    transition: background-color var(--transition-normal);
}

.about-hero h1, .contact-hero h1 {
    font-family: var(--font-accent);
    font-size: 3rem;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.about-hero p, .contact-hero p {
    max-width: 800px;
    margin: 0 auto;
    color: var(--text-light);
    font-size: 1.1rem;
}

.about-mission {
    padding: 80px 0;
}

.about-mission .container {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 50px;
}

.mission-content {
    flex: 1;
    min-width: 300px;
}

.mission-content h2 {
    font-size: 2rem;
    margin-bottom: 30px;
    color: var(--text-dark);
}

.mission-content p {
    margin-bottom: 20px;
    line-height: 1.8;
}

.mission-content ul {
    list-style-type: disc;
    padding-left: 20px;
}

.mission-content li {
    margin-bottom: 10px;
    line-height: 1.6;
}

.mission-image {
    flex: 1;
    min-width: 300px;
    text-align: center;
}

.mission-image img {
    max-width: 100%;
    max-height: 400px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.about-history {
    padding: 80px 0;
    background-color: var(--bg-light);
    transition: background-color var(--transition-normal);
}

.about-history h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 50px;
    color: var(--text-dark);
}

.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.timeline::after {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background-color: var(--border-color);
    transition: background-color var(--transition-normal);
}

.timeline-item {
    display: flex;
    margin-bottom: 50px;
    position: relative;
}

.timeline-year {
    min-width: 120px;
    padding: 10px 20px;
    background-color: var(--primary-color);
    color: white;
    border-radius: var(--radius-md);
    text-align: center;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
    margin-right: 30px;
    transition: background-color var(--transition-normal);
}

.timeline-content {
    background-color: var(--bg-color);
    padding: 25px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    flex: 1;
    position: relative;
    transition: background-color var(--transition-normal);
}

.timeline-content::before {
    content: '';
    position: absolute;
    left: -10px;
    top: 20px;
    width: 20px;
    height: 20px;
    background-color: var(--bg-color);
    transform: rotate(45deg);
    box-shadow: -2px 2px 4px rgba(0, 0, 0, 0.05);
    transition: background-color var(--transition-normal);
}

.timeline-content h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.timeline-content p {
    line-height: 1.6;
}

.about-team {
    padding: 80px 0;
}

.about-team h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 50px;
    color: var(--text-dark);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 40px;
}

.team-member {
    text-align: center;
}

.team-member img {
    width: 100%;
    height: auto;
    border-radius: 50%;
    margin-bottom: 15px;
    box-shadow: var(--shadow-md);
}

.team-member h3 {
    font-size: 1.2rem;
    margin-bottom: 5px;
    color: var(--text-dark);
}

.team-member p:nth-of-type(1) {
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 10px;
    transition: color var(--transition-normal);
}

.team-member p:nth-of-type(2) {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.6;
}

.about-values {
    padding: 80px 0;
    background-color: var(--bg-light);
    transition: background-color var(--transition-normal);
}

.about-values h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 50px;
    color: var(--text-dark);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
}

.value-card {
    background-color: var(--bg-color);
    border-radius: var(--radius-lg);
    padding: 30px;
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: transform var(--transition-fast), 
                box-shadow var(--transition-fast),
                background-color var(--transition-normal);
}

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

.value-icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 20px;
    font-size: 1.8rem;
    transition: background-color var(--transition-normal);
}

.value-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-dark);
}

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

.about-join {
    padding: 80px 0;
    text-align: center;
}

.about-join h2 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.about-join p {
    max-width: 800px;
    margin: 0 auto 40px;
    color: var(--text-light);
    line-height: 1.8;
}

.join-actions {
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* === お問い合わせページ === */
.contact-section {
    padding: 50px 0;
}

.contact-container {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 40px;
}

.contact-form-wrapper {
    background-color: var(--bg-light);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-sm);
    transition: background-color var(--transition-normal);
}

.contact-form-wrapper h2 {
    font-size: 1.8rem;
    margin-bottom: 30px;
    color: var(--text-dark);
}

.privacy-policy {
    margin-top: 30px;
}

.btn-submit {
    width: 100%;
    padding: 15px;
    font-size: 1.1rem;
    font-weight: 600;
    margin-top: 20px;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100%, 1fr));
    gap: 25px;
    align-content: start;
}

.contact-card {
    background-color: var(--bg-light);
    padding: 30px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: background-color var(--transition-normal);
}

.contact-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 20px;
    font-size: 1.5rem;
    transition: background-color var(--transition-normal);
}

.contact-card h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.contact-card address, .contact-card p {
    color: var(--text-light);
    line-height: 1.6;
    font-style: normal;
}

.contact-hours {
    margin-top: 5px;
    font-size: 0.9rem;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--bg-color);
    color: var(--text-light);
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all var(--transition-fast);
}

.social-link:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

.faq-section {
    padding: 80px 0;
    background-color: var(--bg-light);
    transition: background-color var(--transition-normal);
}

.faq-section h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 50px;
    color: var(--text-dark);
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background-color: var(--bg-color);
    border-radius: var(--radius-lg);
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: background-color var(--transition-normal);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    cursor: pointer;
}

.faq-question h3 {
    font-size: 1.1rem;
    color: var(--text-dark);
}

.faq-toggle {
    background: none;
    border: none;
    color: var(--primary-color);
    font-size: 1.2rem;
    cursor: pointer;
    transition: color var(--transition-normal);
}

.faq-answer {
    padding: 0 20px 20px;
    display: none;
}

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

.faq-answer a {
    color: var(--primary-color);
    text-decoration: underline;
}

.map-section {
    padding: 80px 0;
}

.map-section h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 50px;
    color: var(--text-dark);
}

.map-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
    align-items: start;
}

.map-placeholder {
    height: 400px;
    background-color: var(--bg-light);
    border-radius: var(--radius-lg);
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: var(--shadow-sm);
    position: relative;
    transition: background-color var(--transition-normal);
}

.map-overlay {
    text-align: center;
    padding: 30px;
}

.map-overlay p {
    margin-bottom: 20px;
    color: var(--text-light);
}

.btn-load-map {
    padding: 10px 20px;
}

.map-info {
    background-color: var(--bg-light);
    padding: 30px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: background-color var(--transition-normal);
}

.map-info h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.map-info ul {
    list-style-type: none;
    margin-bottom: 20px;
}

.map-info li {
    margin-bottom: 10px;
    line-height: 1.6;
}

.map-info strong {
    color: var(--text-dark);
}

.map-info p {
    color: var(--text-dark);
    font-weight: 600;
}

/* === フッター === */
footer {
    background-color: var(--secondary-color);
    padding: 80px 0 40px;
    transition: background-color var(--transition-normal);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo img {
    height: 60px;
    width: auto;
    margin-bottom: 15px;
}

.footer-logo p {
    color: var(--text-light);
}

.footer-links h4, .footer-contact h4, .footer-social h4 {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: var(--text-light);
    transition: color var(--transition-fast);
}

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

.footer-contact address {
    font-style: normal;
    color: var(--text-light);
    line-height: 1.6;
}

.social-icons {
    display: flex;
    gap: 15px;
}

.social-icons a {
    color: var(--text-light);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    transition: border-color var(--transition-normal);
}

.footer-bottom p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* === 通知とモーダル === */
.notification, .cookie-notice {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    display: none;
    transition: background-color var(--transition-normal);
}

#cart-notification {
    width: 320px;
}

#submission-success {
    max-width: 400px;
}

.notification-content {
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.notification-content i {
    font-size: 2rem;
    color: var(--success-color);
    margin-bottom: 15px;
}

.notification-content p {
    margin-bottom: 20px;
    text-align: center;
}

.notification-actions {
    display: flex;
    gap: 10px;
    width: 100%;
}

.btn-view-cart, .btn-continue-shopping, .close-notification {
    flex: 1;
    padding: 8px 0;
    text-align: center;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    cursor: pointer;
}

.btn-view-cart {
    background-color: var(--primary-color);
    color: white;
}

.btn-continue-shopping {
    background-color: var(--secondary-color);
    color: var(--accent-color);
}

.close-notification {
    background-color: var(--bg-light);
    color: var(--text-light);
    border: 1px solid var(--border-color);
    transition: border-color var(--transition-normal);
}

.cookie-notice {
    bottom: 0;
    right: 0;
    left: 0;
    border-radius: 0;
    background-color: var(--bg-color);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    display: flex;
}

.cookie-content {
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.cookie-content p {
    flex: 2;
    min-width: 300px;
}

.cookie-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.btn-cookie-accept, .btn-cookie-customize, .btn-cookie-decline {
    padding: 8px 16px;
    font-size: 0.9rem;
}

.cookie-content a {
    margin-left: auto;
    font-size: 0.9rem;
    text-decoration: underline;
}

/* === ダークモード === */
.dark-mode {
    color: var(--dark-text-color);
    background-color: var(--dark-bg-color);
}

.dark-mode header {
    background-color: var(--dark-bg-color);
    border-bottom-color: var(--dark-border-color);
}

.dark-mode nav ul li a {
    color: var(--dark-text-color);
}

.dark-mode nav ul li a:hover, .dark-mode nav ul li a.active {
    color: var(--dark-primary-color);
}

.dark-mode nav ul li a.active::after {
    background-color: var(--dark-primary-color);
}

.dark-mode #cart-count {
    background-color: var(--dark-primary-color);
}

.dark-mode .hero, .dark-mode .about-hero, .dark-mode .contact-hero {
    background-color: var(--dark-secondary-color);
}

.dark-mode .hero::after {
    background: linear-gradient(to bottom, rgba(30, 58, 72, 0), rgba(18, 30, 36, 1));
}

.dark-mode .hero h1, .dark-mode .about-hero h1, .dark-mode .contact-hero h1 {
    color: var(--dark-text-dark);
}

.dark-mode .hero p, .dark-mode .about-hero p, .dark-mode .contact-hero p {
    color: var(--dark-text-light);
}

.dark-mode .feature-item, .dark-mode .product-card, .dark-mode .cart-item,
.dark-mode .checkout-details, .dark-mode .checkout-summary, .dark-mode .success-message,
.dark-mode .info-card, .dark-mode .contact-form-wrapper, .dark-mode .contact-card,
.dark-mode .faq-item, .dark-mode .map-placeholder, .dark-mode .map-info {
    background-color: var(--dark-bg-light);
}

.dark-mode .feature-icon, .dark-mode .value-icon, .dark-mode .contact-icon {
    background-color: var(--dark-primary-color);
}

.dark-mode .stat-number {
    color: var(--dark-primary-color);
}

.dark-mode .product-info, .dark-mode .product-details-tabs, .dark-mode .about-history,
.dark-mode .about-values, .dark-mode .cart-recommendations, .dark-mode .recommended-products,
.dark-mode .faq-section {
    background-color: var(--dark-bg-light);
}

.dark-mode .certification, .dark-mode .eco-certification, .dark-mode .ingredients-list,
.dark-mode .safety-info, .dark-mode .technology-specs, .dark-mode .cleaning-system,
.dark-mode .tablet-info, .dark-mode .materials-list, .dark-mode .craftsmanship,
.dark-mode .review-summary, .dark-mode .review-item, .dark-mode .value-card {
    background-color: var(--dark-bg-color);
}

.dark-mode .product-price, .dark-mode .cart-item-subtotal {
    color: var(--dark-primary-color);
}

.dark-mode .comparison-table th {
    background-color: var(--dark-primary-color);
}

.dark-mode .comparison-table tr:nth-child(even) {
    background-color: var(--dark-bg-color);
}

.dark-mode .comparison-table td, .dark-mode .subtotal, .dark-mode .tax,
.dark-mode .shipping {
    border-bottom-color: var(--dark-border-color);
}

.dark-mode .tag {
    background-color: var(--dark-secondary-color);
    color: var(--dark-accent-color);
}

.dark-mode footer {
    background-color: var(--dark-secondary-color);
}

.dark-mode .footer-bottom {
    border-top-color: var(--dark-border-color);
}

.dark-mode .notification, .dark-mode .cookie-notice {
    background-color: var(--dark-bg-light);
}

.dark-mode .form-group input, .dark-mode .form-group select,
.dark-mode .form-group textarea {
    background-color: var(--dark-bg-color);
    color: var(--dark-text-color);
    border-color: var(--dark-border-color);
}

.dark-mode .tab-button::after {
    background-color: var(--dark-primary-color);
}

.dark-mode .bar-container {
    background-color: var(--dark-bg-color);
}

.dark-mode .bar {
    background-color: var(--dark-primary-color);
}

.dark-mode .quantity-controls button {
    background-color: var(--dark-bg-color);
    color: var(--dark-text-color);
    border-color: var(--dark-border-color);
}

.dark-mode .quantity-controls button:hover {
    background-color: var(--dark-primary-color);
    color: white;
}

.dark-mode .quantity-controls input {
    background-color: var(--dark-bg-color);
    color: var(--dark-text-color);
    border-color: var(--dark-border-color);
}

.dark-mode .timeline::after {
    background-color: var(--dark-border-color);
}

.dark-mode .timeline-year {
    background-color: var(--dark-primary-color);
}

.dark-mode .timeline-content, .dark-mode .timeline-content::before {
    background-color: var(--dark-bg-color);
}

.dark-mode .social-link {
    background-color: var(--dark-bg-color);
    color: var(--dark-text-light);
}

.dark-mode .social-link:hover {
    background-color: var(--dark-primary-color);
    color: white;
}

/* === レスポンシブ対応 === */
@media (max-width: 1024px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .feature-grid, .product-grid {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    }
    
    .checkout-container, .contact-container {
        grid-template-columns: 1fr;
    }
    
    .map-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    header .container {
        flex-direction: column;
        padding: 15px;
    }
    
    .logo {
        margin-bottom: 15px;
    }
    
    nav ul {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    nav ul li {
        margin: 0 15px 10px;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .product-detail-grid {
        grid-template-columns: 1fr;
    }
    
    .about-mission .container {
        flex-direction: column;
    }
    
    .cookie-content {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .feature-grid, .product-grid, .values-grid, .team-grid {
        grid-template-columns: 1fr;
    }
    
    .review-summary {
        flex-direction: column;
        gap: 30px;
    }
    
    .rating-bars {
        width: 100%;
    }
    
    .product-actions {
        flex-direction: column;
    }
    
    .quantity-selector {
        width: 100%;
        margin-right: 0;
        margin-bottom: 15px;
    }
    
    .cart-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .cart-item-subtotal, .cart-item-quantity, .cart-item-remove {
        width: 100%;
        margin: 0;
        text-align: left;
    }
    
    .join-actions {
        flex-direction: column;
        gap: 15px;
    }
}