/**
 * 沁园汝瓷 - 产品详情页样式 (product-detail.html)
 * 基于蓝湖设计稿 "07-" 精确提取
 * 设计稿尺寸: 960px × 1595.5px, 容器宽度: 1400px
 * 缩放系数: 1400/960 ≈ 1.4583
 */

/* ==================== 产品详情页 Header ==================== */
body.product-detail-page .header {
    background-color: rgba(255, 255, 255, 1);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}

body.product-detail-page .header.scrolled {
    background-color: rgba(255, 255, 255, 0.98);
}

body.product-detail-page .nav-link {
    color: var(--color-primary);
    font-size: 16px;
}

body.product-detail-page .nav-link:hover,
body.product-detail-page .nav-link.active {
    color: #fff;
    background-color: var(--color-primary);
}

body.product-detail-page .header.scrolled .nav-link {
    color: var(--color-text-primary);
}

body.product-detail-page .header.scrolled .nav-link:hover,
body.product-detail-page .header.scrolled .nav-link.active {
    color: var(--color-primary);
    background-color: rgba(66, 147, 157, 0.08);
}

/* ==================== Banner ==================== */
/* 与 product-list.html 的 page-banner 保持一致 */
.detail-banner {
    position: relative;
    width: 100%;
    height: 600px;
    overflow: hidden;
    margin-top: 0;
}

.detail-banner-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.detail-banner-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.detail-banner-content {
    position: relative;
    z-index: 1;
    text-align: left;
    padding-top: 150px;
    margin: 0 auto;
}

.detail-banner-content h1 {
    font-family: var(--font-family-serif);
    font-size: 70px;
    font-weight: var(--font-weight-semibold);
    color: #FFFDF9;
    margin-bottom: 25px;
    letter-spacing: 6px;
    display: inline-flex;
    align-items: center;
    gap: 15px;
}

.detail-banner-content p {
    font-size: 22px;
    color: #FFFDF9;
    line-height: 1.8;
    max-width: 1000px;
}

/* ==================== Breadcrumb ==================== */
.detail-breadcrumb {
    padding: 30px 0 20px;
    background-color: #ffffff;
}

.detail-breadcrumb .container {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-family-sans);
    font-size: 20px;
    color: #000000;
}

.detail-breadcrumb a {
    color: #000000;
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.detail-breadcrumb span {
    color: #000000;
}

.detail-breadcrumb .current {
    color: var(--color-primary);
}

/* ==================== Product Detail Section ==================== */
/* 产品详情页整体背景色 */
body.product-detail-page {
    background-color: #ffffff;
}

/* 产品详情页所有 section 的 container 最大宽度 1600px */
body.product-detail-page .container {
    max-width: 1600px;
    padding-left: 20px;
    padding-right: 20px;
}

.detail-product {
    padding: 20px 0 80px;
    background-color: #FFFDF9;
}

.detail-product-layout {
    display: flex;
    gap: 50px;
    align-items: center;
    border-radius: 8px;
}

/* 产品图片宽度 710px，高度自适应 */
.detail-product-image {
    flex: 0 0 710px;
    max-width: 710px;
}

.detail-product-image img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius-lg);
}

/* ==================== Product Image Thumbnails ==================== */
.detail-thumbnails {
    display: flex;
    flex-wrap: nowrap;
    gap: 10px;
    margin-top: 15px;
    justify-content: center;
    overflow-x: auto;
    padding-bottom: 5px;
}

.detail-thumbnail-item {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    border: 2px solid transparent;
    border-radius: 6px;
    overflow: hidden;
    cursor: pointer;
    transition: border-color 0.2s ease, opacity 0.2s ease;
    opacity: 0.7;
}

.detail-thumbnail-item:hover {
    opacity: 1;
}

.detail-thumbnail-item.active {
    border-color: var(--color-primary);
    opacity: 1;
}

.detail-thumbnail-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* 右侧内容占据剩余宽度 */
.detail-product-info {
    flex: 1;
    min-width: 0;
    padding-top: 30px;
}

/* 设计稿: font-size 40px → 80px, color: #000000 */
.detail-product-name {
    font-family: var(--font-family-serif);
    font-size: 42px;
    font-weight: var(--font-weight-bold);
    color: #000000;
    margin-bottom: 15px;
    line-height: 1;
    letter-spacing: 2px;
}

/* 设计稿: font-size 15px → 30px, color: #A3947B */
.detail-product-subtitle {
    font-family: var(--font-family-serif);
    font-size: 30px;
    color: #A3947B;
    margin-bottom: 20px;
    line-height: 1;
    letter-spacing: 1px;
}

/* 设计稿: 37px wide → 74px, color: #A3947B */
.detail-product-divider {
    width: 74px;
    height: 1px;
    background-color: #A3947B;
    margin-bottom: 25px;
}

/* 设计稿: font-size 9px → 18px, color: #474747 */
.detail-product-desc {
    font-family: var(--font-family-serif);
    font-size: 18px;
    color: #474747;
    line-height: 2;
    margin-bottom: 35px;
    white-space: pre-wrap;
}

/* ==================== Specs Table ==================== */
.detail-specs-table {
    width: 100%;
}

.detail-specs-row {
    display: flex;
    padding: 18px 0;
    border-bottom: 0.5px solid rgba(233, 233, 233, 1);
    font-family: var(--font-family-serif);
    font-size: 18px;
}

.detail-specs-row:first-child {
    border-top: 0.5px solid rgba(233, 233, 233, 1);
}

.detail-specs-label {
    flex: 0 0 126px;
    color: #000000;
    font-weight: var(--font-weight-medium);
}

.detail-specs-value {
    flex: 1;
    color: #000000;
    line-height: 1.6;
}

/* ==================== Related Products ==================== */
.detail-related {
    padding: 40px 0 80px;
    background-color: #ffffff;
}

/* 设计稿: font-size 15px → 22px, color: rgba(0,0,0,1) */
.detail-related-title {
    font-family: var(--font-family-sans);
    font-size: 30px;
    color: rgba(0, 0, 0, 1);
    margin-bottom: 20px;
    font-weight: var(--font-weight-normal);
}

/* 设计稿: 788px → 1149px, 0.5px solid rgba(203,203,203,1) */
.detail-related-divider {
    width: 100%;
    height: 0.5px;
    background-color: rgba(203, 203, 203, 1);
    margin-bottom: 30px;
}

.detail-related-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 68px;
}

/* 产品卡片链接 */
.detail-related-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
    transition: transform var(--transition-fast);
}

.detail-related-card-link:hover {
    transform: translateY(-4px);
}

/* 产品卡片 */
.detail-related-card {
    display: block;
    border: 1px solid #E9E9E9;
    border-radius: 8px;
    overflow: hidden;
    background-color: #ffffff;
}

/* 正方形图片 */
.detail-related-card-img {
    width: 100%;
    aspect-ratio: 1;
    overflow: hidden;
    background-color: var(--color-bg-secondary);
}

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

.detail-related-card:hover .detail-related-card-img img {
    transform: scale(1.05);
}

/* 产品名 40px, #000000, 居中 */
.detail-related-card-info h4 {
    font-family: var(--font-family-serif);
    font-size: 40px;
    font-weight: var(--font-weight-medium);
    color: #000000;
    margin-bottom: 6px;
    line-height: 1.4;
    padding: 16px 16px 8px;
    text-align: center;
}

/* 描述 26px, #A3947B, 居中 */
.detail-related-card-info p {
    font-family: var(--font-family-sans);
    font-size: 26px;
    color: #A3947B;
    line-height: 1.5;
    padding: 0 16px 42px;
    text-align: center;
}

/* ==================== 响应式 ==================== */
@media (max-width: 1200px) {
    .detail-product-layout {
        gap: 30px;
    }

    .detail-product-image {
        flex: 0 0 400px;
        max-width: 400px;
    }

    .detail-product-name {
        font-size: 48px;
    }
}

@media (max-width: 992px) {
    .detail-banner {
        height: 500px;
    }

    .detail-banner-content {
        padding-top: 120px;
    }

    .detail-banner-content h1 {
        font-size: 42px;
    }

    .detail-banner-content p {
        font-size: 18px;
    }

    .detail-product-layout {
        flex-direction: column;
        align-items: center;
    }

    .detail-product-image {
        flex: 0 0 auto;
        max-width: 100%;
        width: 100%;
    }

    .detail-product-info {
        width: 100%;
        padding-top: 20px;
    }

    .detail-product-name {
        font-size: 40px;
    }

    .detail-product-subtitle {
        font-size: 18px;
    }
}

@media (max-width: 768px) {
    .detail-banner {
        height: 400px;
    }

    .detail-banner-content {
        padding-top: 100px;
    }

    .detail-banner-content h1 {
        font-size: 32px;
    }

    .detail-banner-content p {
        font-size: 16px;
        padding: 0 20px;
    }

    .detail-breadcrumb {
        padding: 20px 0 15px;
    }

    .detail-breadcrumb .container {
        font-size: 12px;
        flex-wrap: wrap;
        padding-left: 16px;
        padding-right: 16px;
    }

    .detail-product {
        padding: 10px 0 50px;
    }

    .detail-product .container {
        padding-left: 16px;
        padding-right: 16px;
    }

    .detail-product-layout {
        gap: 24px;
    }

    .detail-product-image {
        flex: 0 0 auto;
        max-width: 100%;
        width: 100%;
    }

    .detail-product-info {
        width: 100%;
        padding-top: 16px;
    }

    .detail-product-name {
        font-size: 32px;
    }

    .detail-product-subtitle {
        font-size: 16px;
    }

    .detail-product-desc {
        font-size: 14px;
        line-height: 1.8;
        margin-bottom: 24px;
    }

    .detail-specs-row {
        padding: 14px 0;
        font-size: 14px;
    }

    .detail-specs-label {
        flex: 0 0 90px;
        font-size: 13px;
    }

    .detail-specs-value {
        font-size: 13px;
    }

    .detail-related {
        padding: 30px 0 50px;
    }

    .detail-related .container {
        padding-left: 16px;
        padding-right: 16px;
    }

    .detail-related-title {
        font-size: 20px;
        margin-bottom: 16px;
    }

    .detail-related-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .detail-related-card-info h4 {
        font-size: 16px;
        padding: 12px 12px 4px;
    }

    .detail-related-card-info p {
        font-size: 12px;
        padding: 0 12px 28px;
    }

    .detail-thumbnails {
        gap: 8px;
        margin-top: 10px;
        justify-content: flex-start;
    }

    .detail-thumbnail-item {
        width: 60px;
        height: 60px;
    }
}

@media (max-width: 480px) {
    .detail-banner {
        height: 350px;
    }

    .detail-banner-content {
        padding-top: 80px;
    }

    .detail-banner-content h1 {
        font-size: 26px;
        margin-bottom: 16px;
    }

    .detail-banner-content p {
        font-size: 15px;
    }

    .detail-breadcrumb .container {
        font-size: 11px;
        padding-left: 12px;
        padding-right: 12px;
    }

    .detail-product .container {
        padding-left: 12px;
        padding-right: 12px;
    }

    .detail-product-layout {
        gap: 16px;
    }

    .detail-product-name {
        font-size: 26px;
    }

    .detail-product-subtitle {
        font-size: 14px;
    }

    .detail-product-desc {
        font-size: 12px;
        line-height: 1.7;
    }

    .detail-specs-row {
        padding: 12px 0;
        font-size: 12px;
    }

    .detail-specs-label {
        flex: 0 0 75px;
        font-size: 12px;
    }

    .detail-specs-value {
        font-size: 12px;
    }

    .detail-related .container {
        padding-left: 12px;
        padding-right: 12px;
    }

    .detail-related-title {
        font-size: 18px;
    }

    .detail-related-grid {
        gap: 12px;
    }

    .detail-related-card-info h4 {
        font-size: 14px;
        padding: 10px 10px 4px;
    }

    .detail-related-card-info p {
        font-size: 11px;
        padding: 0 10px 24px;
    }
}

@media (max-width: 375px) {
    .detail-banner { height: 300px; }
    .detail-banner-content { padding-top: 60px; }
    .detail-banner-content h1 { font-size: 22px; margin-bottom: 12px; letter-spacing: 3px; }
    .detail-banner-content p { font-size: 13px; }
    .detail-breadcrumb .container { font-size: 10px; padding-left: 10px; padding-right: 10px; }
    .detail-product .container { padding-left: 10px; padding-right: 10px; }
    .detail-product-name { font-size: 22px; }
    .detail-product-desc { font-size: 11px; }
    .detail-specs-row { font-size: 11px; padding: 12px 0; }
    .detail-specs-label { flex: 0 0 70px; font-size: 11px; }
    .detail-specs-value { font-size: 11px; }
    .detail-related .container { padding-left: 10px; padding-right: 10px; }
    .detail-related-grid { gap: 10px; }
    .detail-related-card-info h4 { font-size: 13px; padding: 8px 8px 4px; }
    .detail-related-card-info p { font-size: 10px; padding: 0 8px 20px; }
}
@media (max-width: 320px) {
    .detail-banner { height: 250px; }
    .detail-banner-content { padding-top: 50px; }
    .detail-banner-content h1 { font-size: 20px; }
    .detail-banner-content p { font-size: 12px; }
    .detail-breadcrumb .container { font-size: 10px; padding-left: 8px; padding-right: 8px; }
    .detail-product { padding: 10px 0 30px; }
    .detail-product .container { padding-left: 8px; padding-right: 8px; }
    .detail-product-layout { gap: 12px; }
    .detail-product-name { font-size: 20px; }
    .detail-product-desc { font-size: 10px; }
    .detail-specs-row { font-size: 10px; padding: 10px 0; }
    .detail-specs-label { flex: 0 0 65px; font-size: 10px; }
    .detail-specs-value { font-size: 10px; }
    .detail-related { padding: 20px 0 40px; }
    .detail-related .container { padding-left: 8px; padding-right: 8px; }
    .detail-related-grid { gap: 8px; }
    .detail-related-card-info h4 { font-size: 12px; }
    .detail-related-card-info p { font-size: 9px; padding: 0 6px 18px; }
}