/* ================================
   产品详情页专用样式
   ================================ */

/* 面包屑导航 */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.85rem;
    color: var(--color-gray-400);
    margin-bottom: 60px;
    padding-top: 100px;
}

.breadcrumb a {
    color: var(--color-gray-400);
    transition: var(--transition-fast);
}

.breadcrumb a:hover {
    color: var(--color-black);
}

.breadcrumb span {
    color: var(--color-gray-300);
}

.breadcrumb span:last-child {
    color: var(--color-gray-700);
}

/* 产品英雄区 */
.product-hero {
    background: var(--color-white);
    padding-bottom: 80px;
}

.product-hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.product-hero-image {
    position: relative;
    background: var(--color-gray-100);
    overflow: hidden;
}

.product-hero-image img {
    width: 100%;
    height: 480px;
    object-fit: cover;
    filter: grayscale(30%);
    transition: filter 0.5s ease;
}

.product-hero-image:hover img {
    filter: grayscale(0%);
}

.product-badge {
    position: absolute;
    bottom: 24px;
    left: 24px;
    background: var(--color-black);
    color: var(--color-white);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 8px 16px;
}

.award-badge {
    background: #1a1a1a;
    border: 1px solid #gold;
    background: linear-gradient(135deg, #1a1a1a, #2d2d2d);
}

.product-hero-info {
    padding-top: 20px;
}

.product-series-tag {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.25em;
    color: var(--color-gray-400);
    text-transform: uppercase;
    margin-bottom: 16px;
}

.product-hero-info h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 300;
    color: var(--color-black);
    line-height: 1.1;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.product-tagline {
    font-size: 1.05rem;
    color: var(--color-gray-600);
    margin-bottom: 24px;
    line-height: 1.5;
    font-weight: 400;
}

.product-desc {
    font-size: 0.95rem;
    color: var(--color-gray-500);
    line-height: 1.8;
    margin-bottom: 40px;
}

/* 产品亮点数据 */
.product-highlights {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--color-gray-200);
    margin-bottom: 40px;
}

.highlight-item {
    background: var(--color-gray-100);
    padding: 20px;
    text-align: center;
}

.highlight-value {
    display: block;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-black);
    margin-bottom: 6px;
    line-height: 1.2;
}

.highlight-label {
    display: block;
    font-size: 0.75rem;
    color: var(--color-gray-400);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

/* 操作按钮 */
.product-actions {
    display: flex;
    gap: 16px;
}

/* 产品概述区 */
.product-overview {
    background: var(--color-gray-100);
    padding: var(--section-padding) 0;
}

.overview-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.overview-text .section-tag {
    display: block;
    margin-bottom: 20px;
}

.overview-text h2 {
    font-size: clamp(1.6rem, 3vw, 2.4rem);
    font-weight: 300;
    color: var(--color-black);
    line-height: 1.3;
    margin-bottom: 32px;
}

.overview-text p {
    font-size: 0.95rem;
    color: var(--color-gray-600);
    line-height: 1.8;
    margin-bottom: 20px;
}

.overview-features h3 {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-gray-400);
    margin-bottom: 32px;
}

/* 功能列表 */
.feature-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.feature-list li {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    padding: 20px 0;
    border-bottom: 1px solid var(--color-gray-200);
}

.feature-list li:first-child {
    border-top: 1px solid var(--color-gray-200);
}

.feature-icon {
    font-size: 1rem;
    color: var(--color-gray-400);
    flex-shrink: 0;
    margin-top: 2px;
}

.feature-list strong {
    display: block;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-black);
    margin-bottom: 6px;
}

.feature-list p {
    font-size: 0.88rem;
    color: var(--color-gray-500);
    line-height: 1.6;
    margin: 0;
}

/* 技术规格区 */
.product-specs {
    background: var(--color-white);
    padding: var(--section-padding) 0;
}

.specs-table-wrap {
    overflow-x: auto;
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.92rem;
}

.specs-table td,
.specs-table th {
    padding: 14px 20px;
    text-align: left;
    border-bottom: 1px solid var(--color-gray-200);
}

.specs-table td:first-child {
    color: var(--color-gray-500);
    width: 35%;
}

.specs-table td:last-child {
    color: var(--color-black);
    font-weight: 500;
}

.spec-group {
    background: var(--color-gray-100);
    color: var(--color-black) !important;
    font-size: 0.75rem !important;
    font-weight: 700 !important;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    padding: 12px 20px !important;
}

/* 应用场景区 */
.product-applications {
    background: var(--color-black);
    padding: var(--section-padding) 0;
}

.product-applications .section-tag {
    color: var(--color-gray-500);
}

.product-applications .section-header h2 {
    color: var(--color-white);
}

.app-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2px;
    background: var(--color-gray-800);
}

.app-detail-card {
    background: var(--color-black);
    padding: 40px 32px;
    transition: var(--transition-normal);
}

.app-detail-card:hover {
    background: var(--color-gray-900);
}

.app-num {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--color-gray-600);
    letter-spacing: 0.15em;
    margin-bottom: 20px;
}

.app-detail-card h3 {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-white);
    margin-bottom: 12px;
}

.app-detail-card p {
    font-size: 0.88rem;
    color: var(--color-gray-400);
    line-height: 1.7;
}

/* 相关产品区 */
.related-products {
    background: var(--color-gray-100);
    padding: var(--section-padding) 0;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2px;
    background: var(--color-gray-200);
}

.related-card {
    background: var(--color-white);
    display: block;
    overflow: hidden;
    transition: var(--transition-normal);
    text-decoration: none;
}

.related-card:hover {
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transform: translateY(-4px);
}

.related-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    filter: grayscale(40%);
    transition: filter 0.5s ease;
}

.related-card:hover img {
    filter: grayscale(0%);
}

.related-info {
    padding: 24px;
}

.related-series {
    display: block;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-gray-400);
    margin-bottom: 8px;
}

.related-info h4 {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--color-black);
    margin-bottom: 8px;
}

.related-info p {
    font-size: 0.88rem;
    color: var(--color-gray-500);
}

/* CTA区 */
.product-cta {
    background: var(--color-black);
    padding: 100px 0;
    text-align: center;
}

.product-cta h2 {
    font-size: clamp(1.6rem, 3vw, 2.4rem);
    font-weight: 300;
    color: var(--color-white);
    margin-bottom: 16px;
}

.product-cta p {
    font-size: 1rem;
    color: var(--color-gray-400);
    margin-bottom: 40px;
}

.product-cta .btn-primary {
    background: var(--color-white);
    color: var(--color-black);
    border-color: var(--color-white);
}

.product-cta .btn-primary:hover {
    background: var(--color-gray-200);
    border-color: var(--color-gray-200);
}

/* 响应式 */
@media (max-width: 1024px) {
    .product-hero-grid,
    .overview-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .product-hero-image img {
        height: 360px;
    }

    .breadcrumb {
        padding-top: 90px;
    }

    .app-cards {
        grid-template-columns: repeat(2, 1fr);
    }

    .related-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

    .app-cards {
        grid-template-columns: 1fr;
    }

    .related-grid {
        grid-template-columns: 1fr;
    }

    .product-actions {
        flex-direction: column;
    }

    .specs-table td:first-child {
        width: 45%;
    }
}