/* ========================================
   STRQUA - 产品中心样式表
   版本: 1.1
   特点: 可配置产品展示、详情模态框、响应式、统一的按钮样式
   ======================================== */

/* ---- 产品控制栏 ---- */
.product-controls-section {
    background-color: var(--bg-light);
    padding: var(--space-6) 0;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 70px;
    z-index: 100;
    /* 确保触摸友好 */
    -webkit-overflow-scrolling: touch;
}

.product-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-4);
}

.control-group {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.control-group label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-light);
    white-space: nowrap;
}

.btn-group {
    display: flex;
    gap: var(--space-1);
    background-color: var(--bg-white);
    border-radius: var(--radius-md);
    padding: var(--space-1);
    border: 1px solid var(--border-color);
}

.btn-grid-size {
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-light);
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    /* 确保移动端可点击 */
    -webkit-tap-highlight-color: rgba(0, 170, 153, 0.2);
    touch-action: manipulation;
    min-width: 44px;
    min-height: 44px;
}

.btn-grid-size:hover {
    color: var(--primary-color);
    background-color: var(--bg-light);
}

.btn-grid-size.active {
    color: var(--bg-white);
    background: var(--gradient-primary);
}

.filter-select {
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background-color: var(--bg-white);
    color: var(--text-dark);
    cursor: pointer;
    min-width: 150px;
}

.filter-select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.product-count {
    font-size: var(--font-size-sm);
    color: var(--text-light);
}

.product-count span {
    font-weight: 600;
    color: var(--primary-color);
}

/* ---- 产品网格布局 ---- */
.products-section {
    padding-top: var(--space-8);
}

.products-grid {
    display: grid;
    gap: var(--space-6);
}

/* ========================================
   统一的产品卡片样式 - 适用于所有布局
   ======================================== */

/* 产品卡片基础 */
.product-card {
    background-color: var(--bg-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: all var(--transition-base);
    cursor: pointer;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

.product-image {
    aspect-ratio: 16 / 10;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.product-badge {
    position: absolute;
    top: var(--space-3);
    left: var(--space-3);
    padding: var(--space-1) var(--space-3);
    background: var(--gradient-primary);
    color: var(--bg-white);
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
}

.product-info {
    padding: var(--space-5);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-category {
    font-size: var(--font-size-xs);
    color: var(--primary-color);
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: var(--space-2);
}

.product-info h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--space-2);
    color: var(--text-dark);
    line-height: 1.3;
    /* 默认标题显示2行 */
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-info p {
    color: var(--text-light);
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-4);
    line-height: 1.5;
    flex: 1;
    /* 默认描述显示2行 */
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 产品底部操作区 - 统一样式 */
.product-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: auto;
    padding-top: var(--space-4);
    border-top: 1px solid var(--border-light);
    gap: var(--space-3);
}

.product-price {
    font-size: var(--font-size-lg);
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    white-space: nowrap;
}

.product-price .price-label {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    font-weight: 400;
    -webkit-text-fill-color: var(--text-muted);
}

/* 统一的查看详情按钮样式 - 所有布局通用 */
.btn-view-details {
    /* 基础样式 */
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--primary-color);
    background: transparent;
    border: 1.5px solid var(--primary-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    /* 统一样式 */
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 36px;
    /* 移动端触摸优化 */
    -webkit-tap-highlight-color: rgba(0, 170, 153, 0.15);
    touch-action: manipulation;
}

.btn-view-details:hover {
    background: var(--gradient-primary);
    color: var(--bg-white);
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 170, 153, 0.3);
}

.btn-view-details:active {
    transform: translateY(0) scale(0.98);
}

/* ========================================
   3列布局 (默认) - 响应式优化
   ======================================== */
.products-grid[data-cols="3"] {
    grid-template-columns: repeat(1, 1fr);
}

@media (min-width: 640px) {
    .products-grid[data-cols="3"] {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .products-grid[data-cols="3"] {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* 3列布局 - 中等屏幕优化 (768px-1023px) */
@media (min-width: 768px) and (max-width: 1023px) {
    .products-grid[data-cols="3"] .product-info {
        padding: var(--space-4);
    }
    
    .products-grid[data-cols="3"] .product-info h3 {
        font-size: var(--font-size-base);
        -webkit-line-clamp: 2;
    }
    
    .products-grid[data-cols="3"] .product-info p {
        font-size: var(--font-size-xs);
        -webkit-line-clamp: 2;
    }
    
    .products-grid[data-cols="3"] .product-meta {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-2);
    }
    
    .products-grid[data-cols="3"] .product-price {
        text-align: center;
        font-size: var(--font-size-lg);
    }
    
    .products-grid[data-cols="3"] .btn-view-details {
        width: 100%;
    }
}

/* ========================================
   4列布局 - 响应式优化
   ======================================== */
.products-grid[data-cols="4"] {
    grid-template-columns: repeat(1, 1fr);
}

@media (min-width: 640px) {
    .products-grid[data-cols="4"] {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 900px) {
    .products-grid[data-cols="4"] {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1200px) {
    .products-grid[data-cols="4"] {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* 4列布局 - 中等屏幕优化 (768px-1199px) */
@media (min-width: 768px) and (max-width: 1199px) {
    .products-grid[data-cols="4"] .product-info {
        padding: var(--space-3);
    }
    
    .products-grid[data-cols="4"] .product-info h3 {
        font-size: var(--font-size-base);
        -webkit-line-clamp: 2;
    }
    
    .products-grid[data-cols="4"] .product-info p {
        font-size: var(--font-size-xs);
        -webkit-line-clamp: 2;
    }
    
    .products-grid[data-cols="4"] .product-meta {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-2);
        padding-top: var(--space-3);
    }
    
    .products-grid[data-cols="4"] .product-price {
        text-align: center;
        font-size: var(--font-size-base);
    }
    
    .products-grid[data-cols="4"] .btn-view-details {
        width: 100%;
        padding: var(--space-2) var(--space-3);
        font-size: var(--font-size-xs);
    }
}

/* 4列布局 - 宽屏优化 (1200px+) */
@media (min-width: 1200px) {
    .products-grid[data-cols="4"] .product-meta {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-2);
    }
    
    .products-grid[data-cols="4"] .product-price {
        text-align: center;
    }
    
    .products-grid[data-cols="4"] .btn-view-details {
        width: 100%;
    }
}

/* ========================================
   5列布局 - 响应式优化
   ======================================== */
.products-grid[data-cols="5"] {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
}

@media (min-width: 480px) {
    .products-grid[data-cols="5"] {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-4);
    }
}

@media (min-width: 768px) {
    .products-grid[data-cols="5"] {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--space-5);
    }
}

@media (min-width: 1100px) {
    .products-grid[data-cols="5"] {
        grid-template-columns: repeat(5, 1fr);
        gap: var(--space-4);
    }
}

@media (min-width: 1400px) {
    .products-grid[data-cols="5"] {
        grid-template-columns: repeat(5, 1fr);
        gap: var(--space-5);
    }
}

/* 5列布局 - 中等屏幕优化 (768px-1099px) */
@media (min-width: 768px) and (max-width: 1099px) {
    .products-grid[data-cols="5"] .product-info {
        padding: var(--space-3);
    }
    
    .products-grid[data-cols="5"] .product-info h3 {
        font-size: var(--font-size-sm);
        -webkit-line-clamp: 2;
    }
    
    .products-grid[data-cols="5"] .product-info p {
        font-size: 11px;
        -webkit-line-clamp: 2;
    }
    
    .products-grid[data-cols="5"] .product-meta {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-2);
        padding-top: var(--space-2);
    }
    
    .products-grid[data-cols="5"] .product-price {
        text-align: center;
        font-size: var(--font-size-base);
    }
    
    .products-grid[data-cols="5"] .btn-view-details {
        width: 100%;
        padding: var(--space-2) var(--space-3);
        font-size: var(--font-size-xs);
    }
}

/* 5列布局 - 宽屏优化 (1100px+) */
@media (min-width: 1100px) {
    .products-grid[data-cols="5"] .product-info {
        padding: var(--space-3);
    }
    
    .products-grid[data-cols="5"] .product-meta {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-2);
        padding-top: var(--space-3);
    }
    
    .products-grid[data-cols="5"] .product-price {
        text-align: center;
    }
    
    .products-grid[data-cols="5"] .btn-view-details {
        width: 100%;
    }
}

/* ========================================
   移动端全面优化 - 适用于所有布局
   ======================================== */
@media (max-width: 767px) {
    /* 产品卡片 */
    .product-card {
        border-radius: var(--radius-lg);
    }
    
    .product-info {
        padding: var(--space-3);
    }
    
    .product-info h3 {
        font-size: var(--font-size-base);
        margin-bottom: var(--space-1);
    }
    
    .product-info p {
        font-size: var(--font-size-xs);
        margin-bottom: var(--space-3);
        -webkit-line-clamp: 2;
    }
    
    /* 产品底部操作区 */
    .product-meta {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-2);
        padding-top: var(--space-3);
    }
    
    .product-price {
        text-align: center;
        font-size: var(--font-size-lg);
        margin-bottom: var(--space-1);
    }
    
    .product-price .price-label {
        display: block;
        font-size: 10px;
    }
    
    /* 统一的查看详情按钮 */
    .btn-view-details {
        width: 100%;
        padding: var(--space-2) var(--space-3);
        font-size: var(--font-size-sm);
        min-height: 44px;
        border-radius: var(--radius-md);
    }
}

/* 极小屏幕优化 */
@media (max-width: 480px) {
    .btn-group {
        flex-wrap: nowrap;
        width: 100%;
        justify-content: space-between;
        gap: var(--space-2);
    }
    
    .btn-grid-size {
        flex: 1;
        padding: var(--space-2) var(--space-2);
        font-size: var(--font-size-xs);
        text-align: center;
        min-width: 0;
        -webkit-tap-highlight-color: rgba(0, 170, 153, 0.3);
        touch-action: manipulation;
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .btn-grid-size:active {
        background-color: var(--primary-light);
        transform: scale(0.98);
    }
    
    .control-group {
        width: 100%;
    }
    
    .control-group .btn-group {
        width: 100%;
    }
    
    .product-info {
        padding: var(--space-3);
    }
    
    .product-meta {
        flex-direction: column;
        gap: var(--space-2);
        align-items: stretch;
    }
    
    .product-price {
        text-align: center;
    }
    
    .btn-view-details {
        width: 100%;
        text-align: center;
        -webkit-tap-highlight-color: rgba(0, 170, 153, 0.2);
        touch-action: manipulation;
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
}

/* ---- 产品详情模态框 ---- */
.product-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
}

.product-modal.hidden {
    display: none;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: var(--bg-white);
    border-radius: var(--radius-2xl);
    width: 100%;
    max-width: 1000px;
    max-height: 90vh;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-close {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-light);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-lg);
    color: var(--text-light);
    transition: all var(--transition-fast);
    z-index: 10;
}

.modal-close:hover {
    background: var(--error);
    color: var(--bg-white);
}

.modal-body {
    overflow-y: auto;
    max-height: 90vh;
}

/* 产品详情内容 */
.product-detail {
    display: grid;
    grid-template-columns: 1fr;
}

@media (min-width: 768px) {
    .product-detail {
        grid-template-columns: 1fr 1fr;
    }
}

/* 图片画廊 */
.product-gallery {
    background: var(--bg-light);
    padding: var(--space-6);
}

.gallery-main {
    aspect-ratio: 4 / 3;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--space-4);
    box-shadow: var(--shadow-sm);
    position: relative;
}

/* 放大镜效果 - 悬浮放大框 */
.magnifier {
    position: absolute;
    bottom: 10px;
    right: 10px;
    width: 150px;
    height: 150px;
    background-color: var(--bg-white);
    background-repeat: no-repeat;
    border: 3px solid var(--primary-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
    z-index: 100;
    overflow: hidden;
    pointer-events: none;
}

.magnifier.active {
    opacity: 1;
    visibility: visible;
}

.magnifier-lens {
    position: absolute;
    width: 80px;
    height: 80px;
    background-color: rgba(0, 170, 153, 0.15);
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    cursor: crosshair;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.1s ease, visibility 0.1s ease;
    pointer-events: none;
    z-index: 101;
}

.magnifier-lens.active {
    opacity: 1;
    visibility: visible;
}

.magnifier-hint {
    position: absolute;
    bottom: 170px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 170, 153, 0.9);
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 11px;
    white-space: nowrap;
    opacity: 0;
    transition: opacity 0.2s ease;
    pointer-events: none;
}

.gallery-main:hover .magnifier-hint {
    opacity: 1;
}

/* 响应式放大镜 - 移动端隐藏放大镜 */
@media (max-width: 768px) {
    .magnifier {
        display: none;
    }
    .magnifier-hint {
        display: none;
    }
}

.gallery-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.gallery-thumbs {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-2);
}

.gallery-thumb {
    aspect-ratio: 1;
    background: var(--bg-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition-fast);
}

.gallery-thumb:hover,
.gallery-thumb.active {
    border-color: var(--primary-color);
}

.gallery-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 画廊放大镜图标 */
.gallery-zoom-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: rgba(0, 0, 0, 0.6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.gallery-main:hover .gallery-zoom-icon,
.gallery-zoom-icon.active {
    opacity: 1;
}

.gallery-zoom-icon i {
    margin-left: 2px; /* 视觉居中 */
}

/* 全屏图片预览模态框 */
.fullscreen-preview-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.fullscreen-preview-modal.active {
    opacity: 1;
    visibility: visible;
}

.fullscreen-preview-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
}

.fullscreen-preview-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    z-index: 10;
}

.fullscreen-preview-close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.fullscreen-preview-container {
    position: relative;
    max-width: 90vw;
    max-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 5;
}

.fullscreen-preview-container img {
    max-width: 100%;
    max-height: 85vh;
    object-fit: contain;
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    animation: fullscreenZoomIn 0.3s ease;
}

@keyframes fullscreenZoomIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.fullscreen-preview-hint {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
    padding: 10px 20px;
    border-radius: 30px;
    font-size: var(--font-size-sm);
    z-index: 10;
}

.fullscreen-preview-hint i {
    margin-right: 8px;
}

/* 缩放控制栏 */
.fullscreen-zoom-controls {
    position: absolute;
    top: 80px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 0, 0, 0.7);
    padding: 8px 16px;
    border-radius: 30px;
    z-index: 15;
    backdrop-filter: blur(10px);
}

.zoom-btn {
    width: 36px;
    height: 36px;
    border: none;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    font-size: 14px;
}

.zoom-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: scale(1.1);
}

.zoom-btn:active {
    transform: scale(0.95);
}

.zoom-display {
    color: white;
    font-size: 14px;
    font-weight: 500;
    min-width: 50px;
    text-align: center;
    user-select: none;
}

/* 响应式优化 */
@media (max-width: 768px) {
    .gallery-zoom-icon {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
    
    .fullscreen-preview-close {
        top: 15px;
        right: 15px;
        width: 44px;
        height: 44px;
    }
    
    .fullscreen-preview-container {
        max-width: 95vw;
        max-height: 80vh;
    }
    
    .fullscreen-preview-container img {
        max-height: 80vh;
        border-radius: var(--radius-md);
    }
}

/* 产品信息 */
.product-detail-info {
    padding: var(--space-6);
}

.detail-header {
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-6);
    border-bottom: 1px solid var(--border-color);
}

.detail-category {
    font-size: var(--font-size-sm);
    color: var(--primary-color);
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: var(--space-2);
}

.detail-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: var(--space-4);
    line-height: 1.3;
}

.detail-price {
    font-size: 2rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.detail-price .price-note {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    font-weight: 400;
    -webkit-text-fill-color: var(--text-muted);
    margin-left: var(--space-2);
}

/* 产品特点 */
.detail-features {
    margin-bottom: var(--space-6);
}

.detail-features h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: var(--space-4);
}

.feature-list {
    display: grid;
    gap: var(--space-3);
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
}

.feature-icon {
    width: 24px;
    height: 24px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-white);
    font-size: var(--font-size-xs);
    flex-shrink: 0;
}

.feature-text {
    font-size: var(--font-size-sm);
    color: var(--text-light);
    line-height: 1.5;
}

/* 产品详情描述 */
.detail-description {
    margin-bottom: var(--space-6);
}

.detail-description h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: var(--space-4);
}

.detail-description p {
    font-size: var(--font-size-sm);
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: var(--space-3);
}

/* 操作按钮 */
.detail-actions {
    display: flex;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.detail-actions .btn {
    flex: 1;
    min-width: 140px;
}

/* ---- 空状态 ---- */
.products-empty {
    text-align: center;
    padding: var(--space-16) var(--space-8);
    grid-column: 1 / -1;
}

.products-empty i {
    font-size: 4rem;
    color: var(--border-color);
    margin-bottom: var(--space-6);
}

.products-empty h3 {
    font-size: var(--font-size-xl);
    color: var(--text-dark);
    margin-bottom: var(--space-3);
}

.products-empty p {
    color: var(--text-light);
    margin-bottom: var(--space-6);
}

/* ---- 响应式优化 ---- */
@media (max-width: 768px) {
    .product-controls-section {
        top: 60px;
    }
    
    .product-controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .control-group {
        justify-content: space-between;
    }
    
    .product-count {
        text-align: center;
        padding-top: var(--space-3);
        border-top: 1px solid var(--border-color);
    }
    
    .modal-content {
        max-height: 95vh;
        margin: var(--space-2);
    }
    
    .product-detail-info {
        padding: var(--space-4);
    }
    
    .detail-title {
        font-size: var(--font-size-xl);
    }
    
    .detail-price {
        font-size: 1.5rem;
    }
    
    .gallery-thumbs {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .detail-actions {
        flex-direction: column;
    }
    
    .detail-actions .btn {
        width: 100%;
    }
}