/* ========== /assets/home/css/product-detail.css ========== */

/* 产品详情主体 */
.product-detail-section {
    padding: 60px 0;
}

/* 左右两列布局 */
.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
    margin-bottom: 60px;
}

@media (min-width: 992px) {
    .product-detail-grid {
        grid-template-columns: 1fr 1fr;
        gap: 60px;
    }
}

/* ========== 左侧图片画廊 ========== */
.product-gallery {
    position: sticky;
    top: 100px;
}

.product-main-image {
    width: 100%;
    aspect-ratio: 1 / 1;
    background: var(--gray-light);
    border-radius: 24px;
    overflow: hidden;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
}

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

.product-thumbnails {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.thumb-item {
    width: 80px;
    height: 80px;
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
    background: var(--gray-light);
}

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

.thumb-item.active {
    border-color: var(--accent);
}

.thumb-item:hover {
    border-color: var(--accent);
    transform: scale(1.02);
}

/* ========== 右侧产品信息 ========== */
.product-badge {
    display: inline-block;
    background: var(--accent);
    color: var(--white);
    padding: 4px 12px;
    border-radius: 40px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 16px;
}

.product-detail-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
}

@media (min-width: 768px) {
    .product-detail-title {
        font-size: 36px;
    }
}

.product-rating {
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.product-rating i {
    color: #FFB800;
    font-size: 14px;
}

.product-rating span {
    font-size: 13px;
    color: var(--gray-dark);
}

.product-price {
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--gray-mid);
}

.price-label {
    font-size: 14px;
    color: var(--gray-dark);
    margin-right: 8px;
}

.price-value {
    font-size: 32px;
    font-weight: 800;
    color: var(--accent);
}

.price-value span {
    font-size: 18px;
    font-weight: 500;
}

.price-unit {
    font-size: 13px;
    color: var(--gray-dark);
    margin-left: 4px;
}

.product-short-desc {
    margin-bottom: 24px;
}

.product-short-desc p {
    font-size: 15px;
    color: var(--gray-dark);
    line-height: 1.6;
}

/* 规格选项 */
.product-specs-select {
    margin-bottom: 24px;
}

.spec-group {
    margin-bottom: 16px;
}

.spec-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--primary);
}

.spec-options {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.spec-option {
    padding: 6px 16px;
    border: 1px solid var(--gray-mid);
    border-radius: 40px;
    font-size: 13px;
    cursor: pointer;
    transition: var(--transition);
    background: var(--white);
    color: var(--text-dark);
}

.spec-option:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.spec-option.active {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--white);
}

/* 数量选择和询价按钮 */
.product-actions {
    display: flex;
    gap: 16px;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.quantity-selector {
    display: flex;
    align-items: center;
    border: 1px solid var(--gray-mid);
    border-radius: 40px;
    overflow: hidden;
}

.qty-btn {
    width: 40px;
    height: 40px;
    background: var(--gray-light);
    border: none;
    font-size: 18px;
    cursor: pointer;
    transition: var(--transition);
}

.qty-btn:hover {
    background: var(--accent);
    color: var(--white);
}

.qty-input {
    width: 60px;
    height: 40px;
    text-align: center;
    border: none;
    font-size: 14px;
    font-weight: 500;
}

.qty-input:focus {
    outline: none;
}

.add-quote-btn {
    flex: 1;
    padding: 12px 24px;
}

/* 产品元信息 */
.product-meta-info {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding-top: 20px;
    border-top: 1px solid var(--gray-mid);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    color: var(--gray-dark);
}

.meta-item i {
    width: 24px;
    color: var(--accent);
}

/* ========== 标签页 ========== */
.product-description-tabs {
    margin: 60px 0;
}

.tabs-header {
    display: flex;
    gap: 40px;
    border-bottom: 2px solid var(--gray-mid);
    margin-bottom: 30px;
}

.tab-btn {
    background: none;
    border: none;
    padding: 12px 0;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    color: var(--gray-dark);
    transition: var(--transition);
    position: relative;
}

.tab-btn::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.tab-btn.active {
    color: var(--accent);
}

.tab-btn.active::after {
    transform: scaleX(1);
}

.tabs-content {
    min-height: 300px;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.tab-pane h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--primary);
}

.tab-pane p {
    font-size: 15px;
    color: var(--gray-dark);
    line-height: 1.6;
    margin-bottom: 20px;
}

.tab-pane ul {
    margin: 20px 0;
    padding-left: 24px;
}

.tab-pane li {
    font-size: 14px;
    color: var(--gray-dark);
    margin-bottom: 8px;
}

/* 规格表 */
.specs-table {
    width: 100%;
    border-collapse: collapse;
}

.specs-table tr {
    border-bottom: 1px solid var(--gray-mid);
}

.specs-table th,
.specs-table td {
    padding: 12px 0;
    text-align: left;
    font-size: 14px;
}

.specs-table th {
    width: 40%;
    font-weight: 600;
    color: var(--primary);
}

.specs-table td {
    color: var(--gray-dark);
}

/* ========== 相关产品 ========== */
.related-products {
    margin-top: 60px;
}

.related-products-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-top: 40px;
}

@media (min-width: 768px) {
    .related-products-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 30px;
    }
}

/* ========== 移动端适配 ========== */
@media (max-width: 768px) {
    .product-detail-section {
        padding: 40px 0;
    }

    .product-gallery {
        position: relative;
        top: 0;
    }

    .thumb-item {
        width: 60px;
        height: 60px;
    }

    .product-detail-title {
        font-size: 24px;
    }

    .price-value {
        font-size: 28px;
    }

    .tabs-header {
        gap: 20px;
    }

    .tab-btn {
        font-size: 14px;
    }

    .related-products-grid {
        gap: 16px;
    }
}

/* ========== 相关产品样式 ========== */
.related-products {
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid var(--gray-mid);
}

.related-products .section-title {
    font-size: 28px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 40px;
    color: var(--primary);
}

.related-products .section-title i {
    color: var(--accent);
    margin-right: 12px;
}

@media (min-width: 768px) {
    .related-products .section-title {
        font-size: 32px;
        margin-bottom: 48px;
    }
}

.related-products-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

@media (min-width: 768px) {
    .related-products-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
    }
}

@media (min-width: 1200px) {
    .related-products-grid {
        gap: 30px;
    }
}

/* 相关产品卡片 - 复用产品卡片样式，但做细微调整 */
.related-products-grid .product-card {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.related-products-grid .product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.related-products-grid .product-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.related-products-grid .product-img {
    width: 100%;
    height: 180px;
    background: var(--gray-light);
    overflow: hidden;
}

.related-products-grid .product-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

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

.related-products-grid .product-info {
    padding: 14px;
    padding-right: 40px;
}

.related-products-grid .product-title {
    font-weight: 700;
    margin-bottom: 6px;
    font-size: 14px;
    color: var(--text-dark);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-products-grid .product-desc {
    font-size: 12px;
    color: var(--gray-dark);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-products-grid .quick-quote-icon {
    position: absolute;
    bottom: 12px;
    right: 12px;
    background: var(--accent);
    color: var(--white);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    z-index: 10;
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}

.related-products-grid .quick-quote-icon:hover {
    background: var(--accent-dark);
    transform: scale(1.08);
}

.related-products-grid .quick-quote-icon i {
    font-size: 14px;
}

/* 移动端相关产品 */
@media (max-width: 768px) {
    .related-products {
        margin-top: 40px;
        padding-top: 30px;
    }
    .related-products .section-title {
        font-size: 22px;
        margin-bottom: 24px;
    }
    .related-products-grid .product-img {
        height: 140px;
    }
    .related-products-grid .product-info {
        padding: 10px;
        padding-right: 32px;
    }
    .related-products-grid .product-title {
        font-size: 12px;
    }
    .related-products-grid .product-desc {
        font-size: 10px;
    }
    .related-products-grid .quick-quote-icon {
        width: 28px;
        height: 28px;
        bottom: 8px;
        right: 8px;
    }
    .related-products-grid .quick-quote-icon i {
        font-size: 12px;
    }
}

/* CTA 横幅样式（浅灰色版） */
.cta-banner {
    background: var(--gray-light);
    color: var(--primary);
    text-align: center;
    padding: 60px 20px;
}

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

.cta-banner h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--primary);
}

.cta-banner h2 i {
    color: var(--accent);
    margin-right: 12px;
}

.cta-banner p {
    font-size: 15px;
    color: var(--gray-dark);
    margin-bottom: 28px;
}

.cta-banner .btn-primary {
    background: var(--accent);
    color: var(--white);
    border: none;
}

.cta-banner .btn-primary:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .cta-banner {
        padding: 50px 20px;
    }
    .cta-banner h2 {
        font-size: 24px;
    }
    .cta-banner p {
        font-size: 14px;
        margin-bottom: 24px;
    }
}