/* 1. 設計變數與全域設定 */
        :root {
            --primary: #9C6644;        /* 焦糖棕 (主色) */
            --primary-light: #B07D62;  /* 淺焦糖 */
            --primary-dark: #7F5539;   /* 深可可 */
            --accent: #E6A2A8;         /* 草莓粉 (強調色) */
            --accent-dark: #D48C93;    /* 深粉 */
            --bg-sand: #F7EBE1;        /* 沙杏色 (底色) */
            --bg-cream: #FDFBF7;       /* 奶油白 (區塊背景) */
            --text-dark: #3D2D26;      /* 深咖啡 (文字色) */
            --text-light: #8E7C74;     /* 淺灰褐 */
            --border-color: #E6DFD9;   /* 邊框色 */
            --font-serif: 'Noto Serif TC', 'Playfair Display', serif;
            --font-sans: 'Noto Sans TC', sans-serif;
            --shadow-sm: 0 4px 6px rgba(156, 102, 68, 0.05);
            --shadow-md: 0 10px 20px rgba(156, 102, 68, 0.1);
            --shadow-lg: 0 20px 30px rgba(156, 102, 68, 0.15);
        }

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

        body {
            font-family: var(--font-sans);
            color: var(--text-dark);
            background-color: var(--bg-sand);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }

        h1, h2, h3, h4 {
            font-family: var(--font-serif);
            font-weight: 700;
        }

        a {
            text-decoration: none;
            color: inherit;
        }

        ul {
            list-style: none;
        }

        /* 導覽列 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background-color: rgba(253, 251, 247, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: var(--shadow-sm);
            z-index: 1000;
            border-bottom: 1px solid var(--border-color);
        }

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

        .logo {
            font-size: 1.4rem;
            font-family: var(--font-serif);
            font-weight: 700;
            color: var(--primary-dark);
            letter-spacing: 1px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .logo i {
            color: var(--accent);
        }

        .nav-menu {
            display: flex;
            gap: 25px;
            font-weight: 500;
            font-size: 0.95rem;
        }

        .nav-menu a {
            transition: color 0.3s;
        }

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

        /* 滿版網頁按鈕樣式 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background-color: var(--accent);
            color: white;
            padding: 12px 30px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.1rem;
            border: none;
            cursor: pointer;
            box-shadow: 0 4px 15px rgba(230, 162, 168, 0.4);
            transition: all 0.3s ease;
        }

        .btn-primary:hover {
            background-color: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(230, 162, 168, 0.6);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: transparent;
            color: var(--primary);
            padding: 11px 28px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.1rem;
            border: 2px solid var(--primary);
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .btn-outline:hover {
            background-color: var(--primary);
            color: white;
        }

        /* 2. 焦點首頁區 (Hero Section) */
        .hero {
            padding: 160px 20px 100px;
            background: url('../images/banner/banner_logo.png') no-repeat;
            background-size: 100% auto;
            min-height: 85vh;
            display: flex;
            align-items: center;
            position: relative;
        }

        .hero-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: center;
        }

        .hero-content {
            text-align: left;
        }

        .hero-badge {
            display: inline-block;
            background-color: rgba(156, 102, 68, 0.1);
            color: var(--primary-dark);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 700;
            letter-spacing: 1px;
            margin-bottom: 20px;
            border: 1px solid rgba(156, 102, 68, 0.2);
        }

        .hero h1 {
            font-size: 3.2rem;
            line-height: 1.25;
            color: var(--primary-dark);
            margin-bottom: 25px;
        }

        .hero h1 span {
            color: var(--accent);
            position: relative;
            display: inline-block;
        }

        .hero h1 span::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 0;
            width: 100%;
            height: 8px;
            background-color: rgba(230, 162, 168, 0.2);
            z-index: -1;
        }

        .hero p {
            font-size: 1.15rem;
            color: var(--text-light);
            margin-bottom: 35px;
            max-width: 580px;
        }

        .hero-btns {
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
        }

        .hero-image-box {
            position: relative;
            display: flex;
            justify-content: center;
        }

        .hero-image {
            width: 100%;
            max-width: 420px;
            border-radius: 200px 200px 20px 20px;
            box-shadow: var(--shadow-lg);
            border: 8px solid white;
            animation: float 6s ease-in-out infinite;
        }

        @keyframes float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-12px); }
        }

        /* 3. 通用區塊排版 */
        section {
            padding: 100px 20px;
        }

        .section-bg-cream {
            background-color: var(--bg-cream);
        }

        .section-title-box {
            text-align: center;
            max-width: 600px;
            margin: 0 auto 60px;
        }

        .section-subtitle {
            font-family: var(--font-serif);
            color: var(--accent);
            font-size: 1.1rem;
            text-transform: uppercase;
            letter-spacing: 2px;
            display: block;
            margin-bottom: 10px;
        }

        .section-title {
            font-size: 2.3rem;
            color: var(--primary-dark);
            position: relative;
            padding-bottom: 15px;
        }

        .section-title::after {
            content: '✿';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            color: var(--accent);
            font-size: 1.2rem;
        }

        /* 4. 品牌故事與職人精神 (Brand Story) */
        .about-container {
            max-width: 1100px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 60px;
            align-items: center;
        }

        .about-images {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
        }

        .about-img-1 {
            border-radius: 12px;
            width: 100%;
            height: 280px;
            object-fit: cover;
            box-shadow: var(--shadow-md);
        }

        .about-img-2 {
            border-radius: 12px;
            width: 100%;
            height: 280px;
            object-fit: cover;
            margin-top: 30px;
            box-shadow: var(--shadow-md);
        }

        .about-content h3 {
            font-size: 1.8rem;
            color: var(--primary-dark);
            margin-bottom: 20px;
        }

        .about-content p {
            font-size: 1.05rem;
            color: var(--text-light);
            margin-bottom: 25px;
        }

        .features {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 35px;
        }

        .feature-item {
            background: var(--bg-cream);
            padding: 20px 15px;
            border-radius: 8px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }

        .feature-item i {
            font-size: 1.8rem;
            color: var(--primary-light);
            margin-bottom: 10px;
        }

        .feature-item h4 {
            font-size: 1rem;
            margin-bottom: 5px;
            color: var(--primary-dark);
        }

        .feature-item p {
            font-size: 0.85rem;
            margin-bottom: 0;
        }

        /* 5. 主打商品展示 (Product Showcase) */
        .product-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .product-card {
            background-color: white;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-md);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
            border: 1px solid var(--border-color);
            position: relative;
        }

        .product-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
        }

        .product-tag {
            position: absolute;
            top: 15px;
            right: 15px;
            background-color: var(--primary-dark);
            color: white;
            padding: 5px 12px;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            z-index: 10;
        }

        .product-tag.hot {
            background-color: var(--accent);
        }

        .product-img-box {
            position: relative;
            height: 250px;
            overflow: hidden;
        }

        .product-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .product-card:hover .product-img {
            transform: scale(1.08);
        }

        .product-body {
            padding: 25px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }

        .product-title {
            font-size: 1.4rem;
            color: var(--primary-dark);
            margin-bottom: 10px;
        }

        .product-quote {
            font-style: italic;
            color: var(--primary-light);
            font-size: 0.9rem;
            margin-bottom: 15px;
            border-left: 2px solid var(--accent);
            padding-left: 10px;
        }

        .product-desc {
            font-size: 0.95rem;
            color: var(--text-light);
            margin-bottom: 20px;
            flex-grow: 1;
        }

        .product-meta {
            font-size: 0.85rem;
            color: var(--primary-light);
            background: var(--bg-sand);
            padding: 10px;
            border-radius: 6px;
            margin-bottom: 20px;
        }

        .product-price-box {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-top: 1px solid var(--border-color);
            padding-top: 18px;
        }

        .price-wrapper {
            display: flex;
            flex-direction: column;
        }

        .price-label {
            font-size: 0.75rem;
            color: var(--text-light);
        }

        .product-price {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--accent-dark);
            font-family: var(--font-serif);
        }

        .buy-now-btn {
            background-color: var(--primary);
            color: white;
            border: none;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.2s;
        }

        .buy-now-btn:hover {
            background-color: var(--accent);
            transform: scale(1.1);
        }

        /* 6. 優惠與限量促銷 (Offers & Scarcity) */
        .offer-section {
            background: linear-gradient(rgba(127, 85, 57, 0.9), rgba(127, 85, 57, 0.9)), 
                        url('https://images.unsplash.com/photo-1551024601-bec78aea704b?auto=format&fit=crop&w=1200&q=80') center/cover no-repeat;
            color: white;
            text-align: center;
        }

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

        .offer-badge {
            background-color: var(--accent);
            color: white;
            display: inline-block;
            padding: 5px 20px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 0.9rem;
            margin-bottom: 20px;
            letter-spacing: 2px;
        }

        .offer-section h2 {
            font-size: 2.5rem;
            margin-bottom: 20px;
            color: var(--bg-sand);
        }

        .offer-section p {
            font-size: 1.1rem;
            margin-bottom: 40px;
            opacity: 0.9;
        }

        /* 倒計時器 */
        .countdown-container {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 40px;
        }

        .countdown-item {
            background-color: rgba(253, 251, 247, 0.15);
            backdrop-filter: blur(5px);
            border: 1px solid rgba(253, 251, 247, 0.2);
            padding: 15px 20px;
            border-radius: 12px;
            min-width: 90px;
        }

        .countdown-num {
            font-size: 2rem;
            font-weight: 700;
            font-family: var(--font-serif);
            display: block;
            color: var(--accent);
        }

        .countdown-label {
            font-size: 0.8rem;
            opacity: 0.8;
        }

        /* 7. 顧客好評 (Social Proof) */
        .reviews-container {
            max-width: 1100px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .review-card {
            background-color: white;
            border-radius: 12px;
            padding: 30px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            position: relative;
        }

        .review-stars {
            color: #FFC107;
            margin-bottom: 15px;
        }

        .review-content {
            font-size: 0.95rem;
            color: var(--text-dark);
            margin-bottom: 25px;
            font-style: italic;
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .review-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            object-fit: cover;
        }

        .review-info h4 {
            font-size: 0.95rem;
            color: var(--primary-dark);
        }

        .review-info span {
            font-size: 0.8rem;
            color: var(--text-light);
        }

        /* 8. 常見問題 (FAQ) */
        .faq-container {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background-color: white;
            border-radius: 8px;
            margin-bottom: 15px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: all 0.3s;
        }

        .faq-header {
            padding: 20px 25px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 700;
            color: var(--primary-dark);
            font-size: 1.05rem;
        }

        .faq-header i {
            transition: transform 0.3s;
            color: var(--primary-light);
        }

        .faq-body {
            padding: 0 25px;
            max-height: 0;
            overflow: hidden;
            transition: all 0.3s ease-out;
            color: var(--text-light);
            font-size: 0.95rem;
            border-top: 0px solid transparent;
        }

        /* FAQ 開啟狀態 */
        .faq-item.active .faq-header i {
            transform: rotate(180deg);
        }

        .faq-item.active .faq-body {
            padding: 15px 25px 25px;
            max-height: 200px;
            border-top: 1px solid var(--border-color);
        }

        /* 9. 結帳與下單區 (Checkout Form) */
        .checkout-section {
            background-color: var(--bg-sand);
            background-image: radial-gradient(var(--border-color) 1px, transparent 0);
            background-size: 24px 24px;
        }

        .checkout-container {
            max-width: 1000px;
            margin: 0 auto;
            background-color: white;
            border-radius: 20px;
            box-shadow: var(--shadow-lg);
            overflow: hidden;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            border: 1px solid var(--border-color);
        }

        /* 表單左半：商品與個人資料 */
        .checkout-form-part {
            padding: 40px;
        }

        .checkout-form-part h3 {
            font-size: 1.6rem;
            color: var(--primary-dark);
            margin-bottom: 25px;
            border-bottom: 2px solid var(--bg-sand);
            padding-bottom: 10px;
        }

        .form-step-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--primary-light);
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .form-step-title span {
            background-color: var(--primary-light);
            color: white;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
        }

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

        .form-group label {
            display: block;
            font-weight: 500;
            font-size: 0.9rem;
            margin-bottom: 8px;
            color: var(--text-dark);
        }

        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            background-color: var(--bg-cream);
            color: var(--text-dark);
            font-size: 0.95rem;
            transition: all 0.3s;
        }

        .form-control:focus {
            outline: none;
            border-color: var(--accent);
            background-color: white;
            box-shadow: 0 0 0 3px rgba(230, 162, 168, 0.15);
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
        }

        /* 甜點選購清單 */
        .order-select-item {
            background-color: var(--bg-cream);
            border: 1px solid var(--border-color);
            border-radius: 10px;
            padding: 15px;
            margin-bottom: 12px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: all 0.3s;
        }

        .order-select-item.selected {
            border-color: var(--accent);
            background-color: rgba(230, 162, 168, 0.05);
        }

        .item-info-text h4 {
            font-size: 0.95rem;
            color: var(--primary-dark);
        }

        .item-info-text p {
            font-size: 0.8rem;
            color: var(--accent-dark);
            font-weight: 700;
        }

        /* 加減數量計數器 */
        .qty-counter {
            display: flex;
            align-items: center;
            background-color: white;
            border: 1px solid var(--border-color);
            border-radius: 20px;
            overflow: hidden;
        }

        .qty-btn {
            background: none;
            border: none;
            width: 32px;
            height: 32px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            color: var(--primary);
            transition: background 0.2s;
        }

        .qty-btn:hover {
            background-color: var(--bg-sand);
        }

        .qty-num {
            width: 30px;
            text-align: center;
            font-size: 0.9rem;
            font-weight: 700;
        }

        /* 表單右半：訂單摘要 */
        .checkout-summary-part {
            background-color: var(--bg-cream);
            border-left: 1px solid var(--border-color);
            padding: 40px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .checkout-summary-part h3 {
            font-size: 1.4rem;
            color: var(--primary-dark);
            margin-bottom: 25px;
        }

        .summary-list {
            border-bottom: 1px solid var(--border-color);
            padding-bottom: 20px;
            margin-bottom: 20px;
            flex-grow: 1;
        }

        .summary-item {
            display: flex;
            justify-content: space-between;
            font-size: 0.9rem;
            margin-bottom: 12px;
            color: var(--text-light);
        }

        .summary-item.active-product {
            color: var(--text-dark);
            font-weight: 500;
        }

        .summary-divider {
            height: 1px;
            background-color: var(--border-color);
            margin: 15px 0;
        }

        .summary-total {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 25px;
        }

        .summary-total .total-price {
            font-size: 1.8rem;
            color: var(--accent-dark);
            font-family: var(--font-serif);
        }

        .payment-methods {
            margin-bottom: 30px;
        }

        .payment-option {
            display: flex;
            align-items: center;
            gap: 10px;
            background-color: white;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 12px 15px;
            margin-bottom: 10px;
            cursor: pointer;
            transition: all 0.2s;
        }

        .payment-option.selected {
            border-color: var(--primary);
            background-color: rgba(156, 102, 68, 0.05);
        }

        .payment-option input {
            accent-color: var(--primary);
        }

        .payment-option i {
            color: var(--primary-light);
            font-size: 1.1rem;
        }

        /* 送出成功提示框 */
        .submit-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(61, 45, 38, 0.8);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 2000;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
        }

        .submit-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }

        .success-modal {
            background-color: white;
            padding: 45px;
            border-radius: 20px;
            text-align: center;
            max-width: 450px;
            width: 90%;
            box-shadow: var(--shadow-lg);
            transform: scale(0.8);
            transition: transform 0.3s ease;
        }

        .submit-overlay.active .success-modal {
            transform: scale(1);
        }

        .success-icon {
            font-size: 4rem;
            color: #4CAF50;
            margin-bottom: 20px;
        }

        .success-modal h4 {
            font-size: 1.6rem;
            color: var(--primary-dark);
            margin-bottom: 15px;
        }

        .success-modal p {
            color: var(--text-light);
            margin-bottom: 30px;
            font-size: 0.95rem;
        }

        /* 10. 頁尾與安全標章 (Footer) */
        footer {
            background-color: var(--primary-dark);
            color: var(--bg-cream);
            padding: 60px 20px 20px;
            font-size: 0.9rem;
            border-top: 5px solid var(--accent);
        }

        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand h4 {
            font-size: 1.3rem;
            margin-bottom: 15px;
            color: var(--bg-sand);
        }

        .footer-brand p {
            opacity: 0.8;
            margin-bottom: 20px;
            font-size: 0.85rem;
        }

        .footer-badges {
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
        }

        .trust-badge {
            background-color: rgba(253, 251, 247, 0.1);
            border: 1px solid rgba(253, 251, 247, 0.15);
            padding: 6px 12px;
            border-radius: 6px;
            font-size: 0.75rem;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .footer-links h5, .footer-contact h5 {
            font-size: 1rem;
            margin-bottom: 15px;
            color: var(--accent);
        }

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

        .footer-links a {
            opacity: 0.8;
            transition: opacity 0.2s, color 0.2s;
        }

        .footer-links a:hover {
            opacity: 1;
            color: var(--accent);
        }

        .footer-contact p {
            opacity: 0.8;
            margin-bottom: 10px;
        }

        .footer-contact i {
            margin-right: 8px;
            color: var(--accent);
        }

        .footer-bottom {
            max-width: 1200px;
            margin: 0 auto;
            padding-top: 25px;
            border-top: 1px solid rgba(253, 251, 247, 0.1);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
            opacity: 0.7;
            font-size: 0.8rem;
        }

        /* 11. 懸浮下單按鈕 (Sticky Floating CTA) */
        .floating-cta {
            position: fixed;
            bottom: 25px;
            right: 25px;
            z-index: 999;
            transform: translateY(100px);
            opacity: 0;
            transition: all 0.4s ease;
        }

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

        .floating-btn {
            background-color: var(--accent);
            color: white;
            padding: 12px 25px;
            border-radius: 50px;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 5px 20px rgba(230, 162, 168, 0.6);
            border: 2px solid white;
            cursor: pointer;
            transition: all 0.2s;
        }

        .floating-btn:hover {
            background-color: var(--accent-dark);
            transform: scale(1.05);
        }

        /* 12. 響應式設計 (RWD) */
        @media (max-width: 992px) {
            .hero-container {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .hero-content {
                text-align: center;
            }
            .hero h1 {
                font-size: 2.5rem;
            }
            .hero-btns {
                justify-content: center;
            }
            .hero-image {
                max-width: 300px;
            }
            .about-container {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .about-images {
                order: 2;
            }
            .product-container {
                grid-template-columns: repeat(2, 1fr);
            }
            .checkout-container {
                grid-template-columns: 1fr;
            }
            .checkout-summary-part {
                border-left: none;
                border-top: 1px solid var(--border-color);
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none; /* 在手機版隱藏一般選單，集中於 CTA */
            }
            section {
                padding: 70px 15px;
            }
            .product-container, .reviews-container, .footer-container {
                grid-template-columns: 1fr;
            }
            .countdown-container {
                gap: 10px;
            }
            .countdown-item {
                min-width: 70px;
                padding: 10px;
            }
            .countdown-num {
                font-size: 1.5rem;
            }
            .features {
                grid-template-columns: 1fr;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
            .checkout-form-part {
                padding: 25px;
            }
        }