/* Collection页面专属样式 */

/* Collection Header */
.collection-header {
    padding: 12rem 0 4rem;
    text-align: center;
}

.page-title {
    font-size: 3.5rem;
    font-weight: 100;
    letter-spacing: 0.03em;
    margin-bottom: 2rem;
    opacity: 0;
    transform: translateY(30px);
}

.page-subtitle {
    max-width: 800px;
    margin: 0 auto;
    font-size: 0.938rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.7);
    opacity: 0;
    transform: translateY(30px);
    font-weight: 300;
}

/* Products Grid */
.products-section {
    padding: 4rem 0 8rem;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background-color: rgba(255, 255, 255, 0.1);
}

.product-item {
    position: relative;
    background-color: var(--black);
    overflow: hidden;
    aspect-ratio: 1;
    opacity: 0;
    transform: translateY(30px);
    transition: var(--transition-slow);
}

.product-item a {
    text-decoration: none;
    color: inherit;
    display: block;
    width: 100%;
    height: 100%;
}

.product-item.fade-up {
    animation: fadeUp 0.8s ease forwards;
    animation-delay: calc(var(--i) * 0.1s);
}

.product-item:nth-child(1) { --i: 0; }
.product-item:nth-child(2) { --i: 1; }
.product-item:nth-child(3) { --i: 2; }
.product-item:nth-child(4) { --i: 3; }
.product-item:nth-child(5) { --i: 4; }
.product-item:nth-child(6) { --i: 5; }

.product-image {
    position: relative;
    width: 100%;
    height: 100%;
    cursor: pointer;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 1s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    filter: brightness(0.9);
}

.product-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent);
    padding: 2rem;
    transform: translateY(100%);
    transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.product-item:hover .product-overlay {
    transform: translateY(0);
}

.product-item:hover .product-image img {
    transform: scale(1.08);
    filter: brightness(1);
}

.product-overlay h3 {
    font-size: 1.125rem;
    font-weight: 300;
    margin-bottom: 0.5rem;
    letter-spacing: 0.02em;
}

.product-overlay p {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.7);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 300;
}

/* 产品详情模态框（可选） */
.product-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.95);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.product-modal.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    max-width: 90%;
    max-height: 90vh;
    position: relative;
}

.modal-close {
    position: absolute;
    top: -40px;
    right: 0;
    color: var(--white);
    font-size: 2rem;
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    transform: rotate(90deg);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .page-title {
        font-size: 3rem;
    }
    
    .page-subtitle {
        font-size: 0.875rem;
        padding: 0 1rem;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .product-overlay {
        transform: translateY(0);
        background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent);
    }
}