/* 基礎變數定義 */
:root {
    --primary: #00f5d4;
    --primary-dark: #00c5aa;
    --secondary: #00d4f5;
    --dark-bg: #0a0f18;
    --dark-bg-2: #1a1f2e;
    --dark-bg-3: #252c3f;
    --light-bg: #f5f5f5;
    --light-bg-2: #e5e5e5;
    --container-width: 1200px;
    --card-radius: 12px;
    --small-radius: 8px;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --card-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
    --hover-shadow: 0 15px 30px rgba(0, 0, 0, 0.25);
    --text-primary: rgba(255, 255, 255, 0.95);
    --text-secondary: rgba(255, 255, 255, 0.7);
}

/* 全域容器樣式 */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 30px;
}

/* 漸變動畫效果 */
@keyframes gradientAnimation {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* 產品橫幅樣式 */


/* 產品標題與副標題 */
.product-title {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    color: white;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.product-subtitle {
    font-size: 1.3rem;
    opacity: 0.9;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.6;
}

/* 區塊標題樣式 */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-label {
    display: inline-block;
    font-size: 0.95rem;
    text-transform: uppercase;
    color: var(--primary);
    letter-spacing: 2px;
    margin-bottom: 15px;
    font-weight: 600;
    background: rgba(0, 245, 212, 0.1);
    padding: 6px 16px;
    border-radius: 50px;
}

.section-title {
    font-size: 2.8rem;
    font-weight: 700;
    color: white;
    margin-bottom: 20px;
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.section-desc {
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.75);
    max-width: 750px;
    margin: 0 auto;
    line-height: 1.7;
}

/* 產品過濾器樣式 */
.product-filter {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 50px;
}

.filter-btn {
    padding: 12px 28px;
    background: var(--dark-bg-3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50px;
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
    font-weight: 500;
    letter-spacing: 0.3px;
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--primary);
    color: var(--dark-bg);
    transform: translateY(-3px);
    box-shadow: 0 8px 15px rgba(0, 245, 212, 0.25);
    border-color: var(--primary);
}

/* 載入指示器和分頁樣式已移至app.css */
#loading-indicator {
    display: none; /* 僅保留初始隱藏狀態 */
}

/* 產品網格 */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
    margin-bottom: 60px;
}

/* 產品卡片樣式 */
.product-card {
    background: var(--dark-bg-2);
    border-radius: 10px;
    overflow: hidden;
    transition: all 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
    position: relative;
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 25px rgba(0, 0, 0, 0.2);
    border-color: rgba(0, 245, 212, 0.2);
}

.product-image {
    position: relative;
    height: 180px;
    overflow: hidden;
}

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

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

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.product-card:hover .product-overlay {
    opacity: 1;
}

.view-details {
    background: var(--primary);
    color: var(--dark-bg);
    padding: 10px 20px;
    border-radius: 30px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
}

.view-details:hover {
    background: white;
    transform: scale(1.05);
}

.product-info {
    padding: 15px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.product-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.product-category {
    font-size: 0.8rem;
    color: var(--primary);
    font-weight: 500;
}

.product-title-card {
    font-size: 1rem;
    font-weight: 600;
    color: white;
    margin-bottom: 10px;
    line-height: 1.3;
    height: auto;
    min-height: 40px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-features-compact {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-bottom: 12px;
}

.feature-tag {
    font-size: 0.7rem;
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.8);
    padding: 2px 8px;
    border-radius: 20px;
    display: inline-block;
}

.product-link {
    display: inline-block;
    text-align: center;
    padding: 7px 0;
    width: 100%;
    background: transparent;
    border: 1px solid var(--primary);
    color: var(--primary);
    text-decoration: none;
    border-radius: 5px;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.product-link:hover {
    background: var(--primary);
    color: var(--dark-bg);
}

.featured-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--primary);
    color: var(--dark-bg);
    font-size: 0.7rem;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 20px;
    z-index: 2;
}

/* 無產品時的樣式 */
.no-products {
    grid-column: 1 / -1;
    text-align: center;
    padding: 50px;
    background: var(--dark-bg-3);
    border-radius: var(--card-radius);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.no-products p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.1rem;
}

/* 產品特點區塊 */
.product-features-section {
    padding: 100px 0;
    background-color: var(--dark-bg-2);
    position: relative;
}

.product-features-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('/images/pattern-dots.svg');
    opacity: 0.05;
    z-index: 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 35px;
    margin-top: 60px;
    position: relative;
    z-index: 1;
}

.feature-block {
    text-align: center;
    padding: 40px 30px;
    background: var(--dark-bg-3);
    border-radius: var(--card-radius);
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: var(--card-shadow);
}

.feature-block:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.03);
    border-color: rgba(0, 245, 212, 0.2);
    box-shadow: var(--hover-shadow);
}

.feature-icon {
    font-size: 2.8rem;
    color: var(--primary);
    margin-bottom: 25px;
    background: rgba(0, 245, 212, 0.1);
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin: 0 auto 25px;
}

.feature-title {
    font-size: 1.4rem;
    color: var(--text-primary);
    margin-bottom: 15px;
    font-weight: 600;
}

.feature-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 響應式設計 */
@media (max-width: 1200px) {
    .product-grid, 
    .features-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
    
    .product-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2.4rem;
    }
}

@media (max-width: 992px) {
    .product-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2.2rem;
    }
    
    .product-banner {
        height: 400px;
        margin-bottom: 80px;
    }
    
    .product-features-section {
        padding: 80px 0;
    }
    
    .filter-btn {
        padding: 10px 22px;
    }
}

@media (max-width: 768px) {
    .product-title {
        font-size: 2.2rem;
    }
    
    .product-subtitle {
        font-size: 1.1rem;
    }
    
    .product-banner {
        height: 350px;
        margin-bottom: 60px;
    }
    
    .section-title {
        font-size: 1.9rem;
    }
    
    .section-desc {
        font-size: 1rem;
    }
    
    .product-features-section {
        padding: 60px 0;
    }
    
    .product-grid, 
    .features-grid {
        gap: 25px;
    }
    
    .product-info {
        padding: 25px;
    }
    
    .feature-block {
        padding: 30px 20px;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 20px;
    }
    
    .product-grid {
        grid-template-columns: 1fr;
    }
    
    .product-title {
        font-size: 1.9rem;
    }
    
    .product-subtitle {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.7rem;
    }
    
    .product-banner {
        height: 300px;
        margin-bottom: 50px;
    }
    
    .product-filter {
        gap: 10px;
    }
    
    .filter-btn {
        padding: 8px 16px;
        font-size: 0.9rem;
    }
}

/* 產品詳情頁面樣式 */
.product-overview {
    margin-top: -50px;
    margin-bottom: 80px;
    position: relative;
    z-index: 10;
}

.product-overview-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    background: var(--dark-bg-3);
    border-radius: var(--card-radius);
    box-shadow: var(--card-shadow);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.product-main-image {
    height: 100%;
    padding: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-main-image img {
    max-width: 100%;
    max-height: 400px;
    object-fit: contain;
    border-radius: var(--small-radius);
    transition: transform 0.5s ease;
    cursor: pointer;
}

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

.product-main-info {
    padding: 40px;
    display: flex;
    flex-direction: column;
}

.product-category {
    display: inline-block;
    background: rgba(0, 245, 212, 0.1);
    color: var(--primary);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 15px;
}

.product-name {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 15px;
    line-height: 1.3;
}

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}

.product-summary {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 25px;
}

.product-stock {
    display: inline-block;
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: 25px;
}

.product-stock.in-stock {
    background: rgba(46, 213, 115, 0.15);
    color: #2ed573;
}

.product-stock.out-of-stock {
    background: rgba(255, 71, 87, 0.15);
    color: #ff4757;
}

.product-actions {
    display: flex;
    gap: 15px;
    margin-top: auto;
}

.action-button {
    flex: 1;
    padding: 14px 20px;
    border-radius: 50px;
    text-align: center;
    font-weight: 600;
    transition: var(--transition);
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.action-button.primary {
    background: var(--primary);
    color: var(--dark-bg);
}

.action-button.primary:hover {
    background: var(--primary-dark);
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 245, 212, 0.25);
}

.action-button.secondary {
    background: var(--dark-bg-2);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.action-button.secondary:hover {
    background: var(--dark-bg);
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.15);
    border-color: var(--primary);
}

/* 響應式調整 */
@media (max-width: 992px) {
    .product-overview-grid {
        grid-template-columns: 1fr;
    }
    
    .product-main-image {
        padding: 30px 30px 0;
    }
    
    .product-name {
        font-size: 1.8rem;
    }
}

@media (max-width: 768px) {
    .product-overview {
        margin-top: -30px;
        margin-bottom: 60px;
    }
    
    .product-main-image {
        padding: 20px 20px 0;
    }
    
    .product-main-info {
        padding: 0 20px 30px;
    }
    
    .product-name {
        font-size: 1.6rem;
    }
    
    .product-summary {
        font-size: 1rem;
    }
    
    .product-actions {
        flex-direction: column;
    }
}

@media (max-width: 576px) {
    .product-overview {
        margin-top: -20px;
        margin-bottom: 40px;
    }
    
    .product-name {
        font-size: 1.4rem;
    }
}

/* 圖片放大功能樣式 */
.image-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.3s ease;
}

.image-overlay img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--small-radius);
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.3);
}

.close-button {
    position: absolute;
    top: 20px;
    right: 30px;
    color: white;
    font-size: 35px;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
}

.close-button:hover {
    color: var(--primary);
    transform: scale(1.1);
}

/* 隱藏所有價格相關的元素 */
.product-price-range, 
.product-price-display,
.discount-badge {
    display: none !important;
}

/* 相關產品樣式 */
.related-products {
    margin: 80px 0;
    padding: 60px 0;
    background: var(--dark-bg-2);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.related-products h2 {
    text-align: center;
    font-size: 2rem;
    color: white;
    margin-bottom: 40px;
    font-weight: 700;
}

.related-products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.related-product-card {
    background: var(--dark-bg-3);
    border-radius: var(--card-radius);
    overflow: hidden;
    transition: var(--transition);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.05);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.related-product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 20px rgba(0, 0, 0, 0.15);
    border-color: rgba(0, 245, 212, 0.2);
}

.related-product-image {
    height: 180px;
    overflow: hidden;
}

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

.related-product-card:hover .related-product-image img {
    transform: scale(1.05);
}

.related-product-info {
    padding: 20px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.related-product-title {
    font-size: 1.2rem;
    color: white;
    margin-bottom: 10px;
    font-weight: 600;
    line-height: 1.4;
}

.related-product-desc {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 20px;
    line-height: 1.6;
    flex-grow: 1;
}

.related-product-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    padding: 8px 0;
    transition: var(--transition);
    margin-top: auto;
}

.related-product-link:hover {
    color: white;
    gap: 12px;
}

@media (max-width: 992px) {
    .related-products-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }
}

@media (max-width: 768px) {
    .related-products {
        margin: 60px 0;
        padding: 40px 0;
    }
    
    .related-products h2 {
        font-size: 1.8rem;
    }
    
    .related-product-image {
        height: 160px;
    }
}

@media (max-width: 576px) {
    .related-products-grid {
        grid-template-columns: 1fr;
    }
    
    .related-products {
        margin: 40px 0;
        padding: 30px 0;
    }
    
    .related-products h2 {
        font-size: 1.6rem;
    }
}