/* 产品图片列表页样式 */
.img-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    padding: 20px 0;
}

.img-item {
    border: 2px solid #e0e0e0;
    border-radius: 4px;
    overflow: hidden;
    cursor: pointer;
    transition: border-color 0.3s;
}

.img-item:hover {
    border-color: #667eea;
}

.img-item img {
    width: 100%;
    display: block;
}

.img-item-title {
    padding: 10px;
    text-align: center;
    font-size: 14px;
    color: #333;
    background: #f5f5f5;
}

/* 图片放大预览 */
.img-preview-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    z-index: 9999;
    justify-content: center;
    align-items: center;
}

.img-preview-overlay.active {
    display: flex;
}

.preview-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 90%;
    max-height: 90%;
}

.preview-container img {
    max-width: 100%;
    max-height: calc(90vh - 60px);
    object-fit: contain;
    border-radius: 4px;
}

.preview-title {
    margin-top: 15px;
    color: #fff;
    font-size: 16px;
    text-align: center;
}

.img-preview-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: background-color 0.3s;
}

.img-preview-close:hover {
    background-color: rgba(255, 255, 255, 0.4);
}

.img-preview-close::before,
.img-preview-close::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 2px;
    background-color: #fff;
}

.img-preview-close::before {
    transform: rotate(45deg);
}

.img-preview-close::after {
    transform: rotate(-45deg);
}

.img-preview-prev,
.img-preview-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background-color: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: background-color 0.3s;
}

.img-preview-prev:hover,
.img-preview-next:hover {
    background-color: rgba(255, 255, 255, 0.4);
}

.img-preview-prev {
    left: 20px;
}

.img-preview-next {
    right: 20px;
}

.img-preview-prev::before,
.img-preview-next::before {
    content: '';
    width: 15px;
    height: 15px;
    border-top: 3px solid #fff;
    border-right: 3px solid #fff;
}

.img-preview-prev::before {
    transform: rotate(-135deg);
    margin-left: 5px;
}

.img-preview-next::before {
    transform: rotate(45deg);
    margin-right: 5px;
}

@media (max-width: 768px) {
    .img-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
}