/* ============================================
   Product Center Page - Two Column Layout
   ============================================ */


/* 内容区域过渡动画 */

#product-content-area {
    transition: opacity 0.3s ease;
}


/* 三级菜单占位区域样式 */

.third-level-placeholder {
    flex: 1;
    min-width: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 500px;
    background: #fafafa;
    border-radius: 8px;
    border: 2px dashed #e0e0d0;
    transition: all 0.3s ease;
}

.placeholder-content {
    text-align: center;
    padding: 40px;
    color: #666;
}

.placeholder-icon {
    margin-bottom: 20px;
    opacity: 0.6;
}

.placeholder-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: #5B5B47;
    margin: 0 0 12px 0;
}

.placeholder-content p {
    font-size: 14px;
    color: #888;
    margin: 0;
    line-height: 1.6;
}


/* 占位区域响应式 */

@media (max-width: 991px) {
    .third-level-placeholder {
        min-height: 300px;
        margin-top: 20px;
    }
    .placeholder-content {
        padding: 24px;
    }
    .placeholder-content h3 {
        font-size: 18px;
    }
    .placeholder-content p {
        font-size: 13px;
    }
}

@media (max-width: 767px) {
    .third-level-placeholder {
        min-height: 250px;
    }
    .placeholder-icon svg {
        width: 48px;
        height: 48px;
    }
    .placeholder-content h3 {
        font-size: 16px;
    }
    .placeholder-content p {
        font-size: 12px;
    }
}


/* ============================================
   Product Comparison Section
   ============================================ */

.product-comparison-section {
    padding: 0;
}


/* 对比页面 Banner */

.comparison-banner {
    width: 100%;
    margin-bottom: 17px;
    overflow: hidden;
}

.comparison-banner img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}


/* 对比页面标题 */

.comparison-header {
    margin-bottom: 33px;
}

.comparison-title {
    font-size: 16px;
    font-weight: bold;
    color: #333;
    margin: 0 0 16px 0;
    line-height: 1.4;
}

.comparison-desc {
    font-size: 13px;
    line-height: 1.8;
    color: #666;
    margin: 0;
    font-weight: 500;
}


/* 小标题 */

.section-subtitle {
    font-size: 18px;
    font-weight: 600;
    color: #5B5B47;
    margin: 0 0 24px 0;
    padding-bottom: 12px;
    border-bottom: 2px solid #929269;
}


/* 产品对比表格 */

.comparison-table-wrapper {
    margin-bottom: 33px;
}

.comparison-table-container {
    overflow-x: auto;
    border: 1px solid #e8e8e8;
    border-left: none;
    border-right: none;
    border-radius: 0;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.comparison-table thead th {
    background: #F1F1F1;
    padding: 16px;
    text-align: left;
    font-weight: 600;
    color: #333;
    border-bottom: 2px solid #e8e8e8;
    min-width: 180px;
}

.comparison-table thead th:first-child {
    min-width: 120px;
    /* background: #E8E8E0; */
}

.comparison-table tbody td {
    padding: 14px 16px;
    border-bottom: 1px solid #f0f0f0;
    color: #555;
    vertical-align: top;
    line-height: 1.6;
}

.comparison-table tbody tr:last-child td {
    border-bottom: none;
}

.comparison-table tbody tr.even-row {
    background: #F1F1F1;
}

.comparison-table tbody tr.even-row td:first-child {
    /* background: #EEEEE8; */
}

.comparison-table .feature-label {
    font-weight: 500;
    color: #333333;
    /* background: #FAFAF8; */
}

.comparison-table tbody tr.even-row .feature-label {
    /* background: #EEEEE8; */
}

.comparison-table .stars {
    display: flex;
    gap: 2px;
    margin-bottom: 6px;
    align-items: center;
}

.comparison-table .star-icon {
    width: 16px;
    height: 16px;
    display: inline-block;
    object-fit: contain;
}

.comparison-table .feature-desc {
    font-size: 12px;
    color: #666;
    margin-top: 4px;
}

.comparison-table tbody tr:hover td {
    background: #F6F6F2;
}

.comparison-table tbody tr:hover td:first-child {
    /* background: #EEEEE8; */
}

.comparison-card {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.comparison-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.comparison-card-image {
    width: 100%;
    height: 180px;
    overflow: hidden;
}

.comparison-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.comparison-card-title {
    font-size: 15px;
    font-weight: 600;
    color: #333;
    margin: 16px 16px 12px;
    line-height: 1.4;
}

.comparison-card-feature {
    font-size: 13px;
    line-height: 1.6;
    color: #666;
    margin: 0 16px 12px;
}

.comparison-card-feature strong {
    color: #5B5B47;
    font-weight: 600;
}

.comparison-card-rating {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px;
    border-top: 1px solid #f0f0f0;
    font-size: 13px;
    color: #666;
}

.comparison-card-rating .stars {
    display: flex;
    gap: 2px;
}


/* 规格对比表格 */

.comparison-specs-wrapper {
    margin-bottom: 33px;
}

.comparison-specs-table-wrapper {
    overflow-x: auto;
    border: 1px solid #e8e8e8;
    border-left: none;
    border-right: none;
    border-radius: 0;
}

.comparison-specs-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
}

.comparison-specs-table th {
    background: #F1F1F1;
    padding: 16px;
    text-align: left;
    color: #333;
    border-bottom: 2px solid #e8e8e8;
    min-width: 200px;
    font-weight: bold;
}

.comparison-specs-table th:first-child {
    min-width: 150px;
    /* background: #E8E8E0; */
}

.comparison-specs-table td {
    padding: 14px 16px;
    border-bottom: 1px solid #f0f0f0;
    color: #555;
    vertical-align: top;
    line-height: 1.6;
}

.comparison-specs-table td:first-child {
    /* background: #FAFAF8; */
    font-weight: 500;
    color: #333333;
}

.comparison-specs-table tr:last-child td {
    border-bottom: none;
}

.comparison-specs-table tr:hover td {
    background: #F6F6F2;
}

.comparison-specs-table tr:hover td:first-child {
    /* background: #EEEEE8; */
}

.comparison-table tbody tr.even-row {
    background: #F1F1F1;
}

.comparison-specs-table tbody tr.even-row {
    background: #F1F1F1;
}

.comparison-specs-table tbody tr.even-row td:first-child {
    /* background: #EEEEE8; */
}


/* 应用场景 */

.comparison-applications-wrapper {
    margin-bottom: 33px;
}

.comparison-applications {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.product-applications {
    /* background: #FAFAF8; */
    /* border-radius: 8px; */
    /* padding: 17px 0; */
    padding-top: 3px;
}

.applications-title {
    font-size: 16px;
    font-weight: 600;
    color: #6A6A41;
    margin-bottom: 17px;
    margin-top: 0;
}

.applications-grid {
    /* display: grid; */
    /* grid-template-columns: repeat(4, 1fr); */
    display: flex;
    align-items: center;
    gap: 16px;
}

.application-item {
    text-align: center;
    flex: 1;
}

.application-image {
    width: 100%;
    aspect-ratio: 4/3;
    overflow: hidden;
    margin-bottom: 10px;
    /* background: #e8e8e0; */
    background: #93937E;
}

.application-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    /* display: none; */
}

.application-title {
    font-size: 13px;
    color: #333;
    font-weight: 500;
    line-height: 1.4;
    height: 36px;
    display: inline-block;
}


/* ============================================
   Product Inquiry Form
   ============================================ */

.product-inquiry-form-wrapper {
    margin-top: 20px;
    padding: 42px;
    padding-top: 28px;
    background: #F6F6F2;
    border: 1px solid #e0e0e0;
}

.inquiry-form-content {
    /* max-width: 800px; */
    margin: 0 auto;
}
.inquiry-form-title{
    font-size: 20px;
    line-height: 1.7;
    color: #3A3A32;
    margin-bottom: 10px;
    font-weight: bold;
}
.inquiry-form-desc {
    font-size: 15px;
    line-height: 1.7;
    color: #3A3A32;
    margin-bottom: 30px;
    font-weight: 500;
}

.inquiry-form-fields-container {
    width: 500px;
    max-width: 100%;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.product-inquiry-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}


/* 问题勾选区域 */

.inquiry-questions {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 10px;
    margin-top: 20px;
}

.inquiry-checkbox-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    cursor: pointer;
    font-size: 14px;
    color: #333;
    line-height: 1.5;
}

.inquiry-checkbox-item input[type="checkbox"] {
    display: none;
}

.checkbox-custom {
    width: 18px;
    height: 18px;
    min-width: 18px;
    border: 1px solid #ccc;
    border-radius: 3px;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 1px;
    transition: all 0.2s ease;
}

.inquiry-checkbox-item input[type="checkbox"]:checked+.checkbox-custom {
    background: #ABAD64;
    border-color: #ABAD64;
}

.inquiry-checkbox-item input[type="checkbox"]:checked+.checkbox-custom::after {
    content: '✓';
    color: #fff;
    font-size: 12px;
    font-weight: bold;
}

.checkbox-label {
    flex: 1;
    color: #333333;
    font-weight: 500;
    font-size: 13px;
}


/* 表单组 */

.inquiry-form-group {
    display: flex;
    flex-direction: column;
}

.inquiry-form-group.half {
    flex: 1;
}

.inquiry-form-row {
    display: flex;
    gap: 20px;
}

.inquiry-label {
    font-size: 14px;
    font-weight: 500;
    color: #333;
    margin-bottom: 8px;
}


/* 输入框样式 */

.inquiry-input,
.inquiry-select,
.inquiry-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #d4d4d4;
    border-radius: 4px;
    font-size: 14px;
    color: #333;
    background: #fff;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    box-sizing: border-box;
}

.inquiry-input:focus,
.inquiry-select:focus,
.inquiry-textarea:focus {
    outline: none;
    border-color: #ABAD64;
    box-shadow: 0 0 0 3px rgba(171, 173, 100, 0.1);
}

.inquiry-input::placeholder,
.inquiry-textarea::placeholder {
    color: #999;
}

.inquiry-select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23666' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
    cursor: pointer;
}

.inquiry-select:invalid {
    color: #999;
}

.inquiry-textarea {
    min-height: 80px;
    resize: vertical;
}


/* 按钮 */

.inquiry-form-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 10px;
}

.btn-inquiry-submit {
    width: 100%;
    padding: 14px 24px;
    background: #ABAD64;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
}

.btn-inquiry-submit:hover {
    background: #9a9c58;
    transform: translateY(-1px);
}

.btn-inquiry-advice {
    width: 100%;
    padding: 14px 24px;
    background: transparent;
    color: #ABAD64;
    border: 1px solid #ABAD64;
    border-radius: 4px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-inquiry-advice:hover {
    background: rgba(171, 173, 100, 0.1);
}


/* 消息提示 */

.inquiry-message {
    margin-top: 20px;
    padding: 15px;
    border-radius: 4px;
    text-align: center;
    font-size: 14px;
}

.inquiry-message.success {
    background: #d4edda;
    color: #155724;
}

.inquiry-message.error {
    background: #f8d7da;
    color: #721c24;
}


/* 表单响应式 */

@media (max-width: 767px) {
    .product-inquiry-form-wrapper {
        padding: 24px 16px;
        margin-top: 30px;
    }
    .inquiry-form-desc {
        font-size: 14px;
    }
    .inquiry-form-row {
        flex-direction: column;
        gap: 16px;
    }
    .inquiry-checkbox-item {
        font-size: 13px;
    }
    .inquiry-input,
    .inquiry-select,
    .inquiry-textarea {
        padding: 10px 14px;
        font-size: 13px;
    }
    .btn-inquiry-submit,
    .btn-inquiry-advice {
        padding: 12px 20px;
        font-size: 14px;
    }
}


/* 对比页面响应式 */

@media (max-width: 1199px) {
    .comparison-banner {
        border-radius: 6px;
        margin-bottom: 20px;
    }
    .comparison-table thead th {
        padding: 14px;
        min-width: 160px;
    }
    .comparison-table tbody td {
        padding: 12px 14px;
    }
    .applications-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 991px) {
    .comparison-banner {
        border-radius: 6px;
        margin-bottom: 16px;
    }
    .comparison-title {
        font-size: 20px;
    }
    .comparison-table thead th {
        padding: 12px;
        font-size: 12px;
        min-width: 140px;
    }
    .comparison-table tbody td {
        padding: 10px 12px;
        font-size: 12px;
    }
    .comparison-table .feature-label {
        font-size: 12px;
    }
    .comparison-cards {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .comparison-card-image {
        height: 200px;
    }
    .comparison-specs-table {
        font-size: 12px;
    }
    .comparison-specs-table th,
    .comparison-specs-table td {
        padding: 12px;
        min-width: 160px;
    }
    .product-applications {
        padding: 0 20px;
    }
}

@media (max-width: 767px) {
    .comparison-banner {
        border-radius: 6px;
        margin-bottom: 16px;
    }
    .comparison-header {
        margin-bottom: 28px;
    }
    .comparison-table-container {
        border-radius: 0;
    }
    .comparison-table thead th {
        padding: 10px;
        font-size: 11px;
        min-width: 120px;
    }
    .comparison-table tbody td {
        padding: 8px 10px;
        font-size: 11px;
    }
    .comparison-table .feature-desc {
        font-size: 10px;
    }
    .comparison-title {
        font-size: 18px;
    }
    .comparison-desc {
        font-size: 13px;
    }
    .section-subtitle {
        font-size: 16px;
        margin-bottom: 16px;
    }
    .comparison-cards-wrapper,
    .comparison-specs-wrapper,
    .comparison-applications-wrapper {
        margin-bottom: 32px;
    }
    .comparison-card-image {
        height: 160px;
    }
    .comparison-card-title {
        font-size: 14px;
        margin: 12px 12px 10px;
    }
    .comparison-card-feature {
        font-size: 12px;
        margin: 0 12px 10px;
    }
    .comparison-card-rating {
        padding: 8px 12px;
        font-size: 12px;
    }
    .comparison-specs-table-wrapper {
        border-radius: 0;
    }
    .comparison-specs-table th,
    .comparison-specs-table td {
        padding: 10px;
        font-size: 11px;
        min-width: 140px;
    }
    .applications-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    .product-applications {
        padding: 16px;
    }
    .applications-title {
        font-size: 14px;
        margin-bottom: 16px;
    }
    .application-title {
        font-size: 11px;
    }
}

@media (max-width: 480px) {
    .comparison-specs-table th,
    .comparison-specs-table td {
        padding: 8px;
        font-size: 10px;
        min-width: 120px;
    }
    .applications-grid {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }
}


/* 产品切换加载状态 */

#product-content-area.loading {
    opacity: 0.5;
    pointer-events: none;
}

.product-center-page {
    background: #ffffff;
    color: #1e1e1e;
    font-family: 'Source Han Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
}

.container-padding {
    padding: 0 150px;
}


/* 顶部 Banner */

.product-hero {
    position: relative;
    height: 47vw;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.product-hero .hero-overlay {
    position: absolute;
    inset: 0;
    /* background: linear-gradient(90deg, rgba(0, 0, 0, 0.5) 0%, rgba(0, 0, 0, 0.2) 60%, rgba(0, 0, 0, 0) 100%); */
}

.product-hero .container-box {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.product-hero .hero-content {
    color: #fff;
    max-width: 600px;
}

.product-hero .hero-label {
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 16px;
    opacity: 0.9;
}

.product-hero .hero-title {
    font-size: 48px;
    font-weight: 700;
    margin: 0 0 16px 0;
    letter-spacing: 1px;
    line-height: 1.2;
}

.product-hero .hero-subtitle {
    font-size: 18px;
    margin: 0;
    opacity: 0.9;
    font-weight: 400;
}


/* 面包屑导航 */

.product-breadcrumb-section {
    padding: 16px 0;
    padding-bottom: 6px;
}

.product-breadcrumb-section .container-box {
    margin: 0 auto;
}

.product-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: #666;
    border-bottom: 1px solid #DEDEDE;
    padding: 12px 0;
}

.product-breadcrumb-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    margin-right: 4px;
}

.product-breadcrumb a {
    color: #666;
    text-decoration: none;
    transition: color 0.2s;
}

.product-breadcrumb a:hover {
    color: #333;
}

.product-breadcrumb .separator {
    color: #999;
}

.product-breadcrumb .current {
    color: #333;
    font-weight: 500;
}


/* 主内容区域布局 */

.main-content-wrapper {
    padding: 30px 0 80px;
}

.main-content-wrapper .container-box {
    margin: 0 auto;
}

.content-layout {
    display: flex;
    gap: 40px;
}


/* 左侧分类导航 */

.sidebar-nav {
    min-width: 280px;
    width: 20vw;
    flex-shrink: 0;
    position: sticky;
    top: 100px;
    height: fit-content;
}

.nav-header {
    background: #fff;
    border-bottom: none;
    border-radius: 8px 8px 0 0;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
    display: none;
}

.nav-header .nav-title {
    font-size: 16px;
    font-weight: 600;
    color: #333;
}

.mobile-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    padding: 4px;
    cursor: pointer;
    width: 32px;
    height: 32px;
}

.mobile-toggle .arrow-icon {
    display: block;
    width: 10px;
    height: 10px;
    border-right: 2px solid #333;
    border-bottom: 2px solid #333;
    transform: rotate(45deg);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    margin-top: -4px;
}

.mobile-toggle.active .arrow-icon {
    transform: rotate(-135deg);
    margin-top: 4px;
}

.category-nav {
    background: #fff;
    border-radius: 0 0 8px 8px;
    overflow: hidden;
}

.nav-item {
    /* border-bottom: 1px solid #f0f0f0; */
    background: #F6F6F6;
    margin-bottom: 18px;
    cursor: pointer;
}

.nav-item:last-child {
    border-bottom: none;
}

.nav-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    color: #333;
    text-decoration: none;
    font-size: 14px;
    font-weight: bold;
    transition: all 0.2s;
}

.nav-link:hover,
.nav-link.active {
    background: #f5f5f5;
    color: #2c5aa0;
}

.nav-item.has-children>.nav-link .arrow {
    width: 8px;
    height: 8px;
    border-right: 2px solid #999;
    border-bottom: 2px solid #999;
    transform: rotate(-45deg);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-item.has-children.expanded>.nav-link .arrow {
    transform: rotate(45deg);
}

.sub-nav {
    list-style: none;
    margin: 0;
    padding: 0;
    background: #fff;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transform: translateY(-10px);
    transition: max-height 0.3s ease, opacity 0.3s ease, transform 0.3s ease;
}

.nav-item.expanded>.sub-nav {
    max-height: 500px;
    opacity: 1;
    transform: translateY(0);
}

.sub-item {}

.sub-item:last-child {
    border-bottom: none;
}

.sub-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px 12px 32px;
    color: #333;
    text-decoration: none;
    font-size: 12px;
    transition: all 0.2s;
    font-weight: 500;
}

.sub-link:hover,
.sub-item.active>.sub-link {
    background: #f0f0f0;
    color: #2c5aa0;
}

.sub-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px 12px 16px;
    color: #555;
    text-decoration: none;
    font-size: 12px;
    transition: all 0.2s;
}

.sub-link:hover,
.sub-item.active>.sub-link {
    background: #f0f0f0;
    color: #2c5aa0;
}

.sub-link .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #93937E;
    flex-shrink: 0;
}

.sub-item.has-children>.sub-link .arrow {
    width: 6px;
    height: 6px;
    border-right: 1.5px solid #999;
    border-bottom: 1.5px solid #999;
    transform: rotate(-45deg);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    margin-left: auto;
}


/* 只有展开状态下箭头才朝下 */

.sub-item.has-children.expanded>.sub-link .arrow {
    transform: rotate(45deg);
}

.sub-link .arrow-right {
    width: 6px;
    height: 6px;
    border-right: 1.5px solid #999;
    border-bottom: 1.5px solid #999;
    transform: rotate(-45deg);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    margin-left: auto;
}

.third-nav {
    list-style: none;
    margin: 0;
    padding: 0;
    background: #fff;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transform: translateY(-10px);
    transition: max-height 0.3s ease, opacity 0.3s ease, transform 0.3s ease;
}

.sub-item.expanded>.third-nav {
    max-height: 300px;
    opacity: 1;
    transform: translateY(0);
}

.third-item {
    color: #666666;
}

.third-item:last-child {
    border-bottom: none;
}

.third-link {
    display: block;
    padding: 10px 20px 10px 34px;
    color: #666;
    text-decoration: none;
    font-size: 12px;
    transition: all 0.2s;
}

.third-link:hover,
.third-item.active>.third-link {
    background: #f8f8f8;
    color: #2c5aa0;
}

.third-item.active>.third-link {
    font-weight: 500;
}


/* 右侧内容区域 */

.content-area {
    flex: 1;
    min-width: 0;
}


/* 区块标签样式 */

.section-label {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
}

.section-label .label-bar {
    width: 8px;
    height: 42px;
    background: #929269;
    flex-shrink: 0;
}

.section-label .label-text {
    flex: 1;
    background: #EEEEE8;
    color: #5B5B47;
    font-size: 14px;
    font-weight: 600;
    padding: 12px 20px;
    letter-spacing: 0.5px;
}


/* 产品描述区块 */

.product-description-section {
    margin-bottom: 33px;
}

.desc-banner {
    width: 100%;
    overflow: hidden;
    margin-bottom: 24px;
}

.desc-banner img {
    width: 100%;
    height: auto;
    display: block;
}

.desc-content h2 {
    font-size: 16px;
    font-weight: bold;
    color: #333;
    margin: 0 0 16px 0;
    line-height: 1.4;
}

.desc-content p {
    font-size: 13px;
    line-height: 1.8;
    color: #666666;
    margin: 0;
}


/* 产品结构区块 */

.product-structure-section {
    margin-bottom: 33px;
}

.structure-content h3 {
    font-size: 15px;
    font-weight: 600;
    color: #333;
    margin: 0 0 12px 0;
}

.structure-content>p {
    font-size: 13px;
    line-height: 1.7;
    color: #666;
    margin: 0 0 24px 0;
}

.structure-diagram {
    display: flex;
    align-items: center;
    border-radius: 8px;
}

.diagram-image {
    width: 955px;
}

.diagram-image img {
    width: 100%;
    height: auto;
    display: block;
}

.diagram-labels {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.label-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.label-item .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #8b9a6d;
    flex-shrink: 0;
}

.label-item .text {
    font-size: 13px;
    color: #555;
}


/* 核心优势区块 */

.product-advantages-section {
    margin-bottom: 33px;
}

.advantages-grid {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.advantage-card {
    display: flex;
    flex-direction: column;
    gap: 12px;
    border-radius: 8px;
    padding: 0 0;
}

.advantage-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
}

.advantage-icon {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
}

.advantage-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.advantage-card-header h4,
.advantage-content h4 {
    font-size: 16px;
    font-weight: bold;
    color: #333;
    margin: 0;
}

.advantage-content p {
    font-size: 14px;
    line-height: 1.7;
    color: #666666;
    margin: 0;
    font-weight: 500;
}


/* 技术规格区块 */

.product-specs-section {
    margin-bottom: 33px;
}

.specs-table-wrapper {
    overflow-x: auto;
    border: 1px solid #e8e8e8;
    border-left: none;
    border-right: none;
    border-radius: 0;
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
}

.specs-table th {
    background: #F1F1F1;
    padding: 14px 16px;
    text-align: left;
    font-weight: 600;
    color: #333;
    border-bottom: 1px solid #e8e8e8;
    white-space: nowrap;
}

.specs-table td {
    padding: 12px 16px;
    border-bottom: 1px solid #f0f0f0;
    color: #555;
    vertical-align: top;
}

.specs-table tr:last-child td {
    border-bottom: none;
}

.specs-table tbody tr.even-category {
    background: #F1F1F1;
}

.specs-table .category-cell {
    font-weight: 500;
    color: #333;
    vertical-align: middle;
    border-right: 1px solid #f0f0f0;
}


/* specifications2 三列表格样式 */

.specs-table.specs-table-3cols th {
    text-align: left;
}

.specs-table.specs-table-3cols td {
    padding: 12px 16px;
}

.specs-table.specs-table-3cols tbody tr.even-row {
    background: #F1F1F1;
}

/* 两列表格（外部模板 Technical specifications） */
.specs-table.specs-table-2cols tbody tr.even-row {
    background: #F1F1F1;
}

.specs-table.specs-table-2cols th:first-child,
.specs-table.specs-table-2cols td:first-child {
    font-weight: 500;
    color: #333;
    min-width: 160px;
}

/* 外部模板：Panel Features 底部标签行 */
.solid-panel-feature-tags-section {
    margin-bottom: 33px;
}

.panel-feature-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 20px;
    align-items: center;
}

.panel-feature-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: #555;
    font-weight: 500;
}

.panel-feature-tag img {
    width: 15px;
    height: 15px;
    object-fit: contain;
}

/* 外部模板：Application scenarios 横向列表 */
.solid-panel-app-scenarios .external-scenarios-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.external-scenario-row {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.external-scenario-row:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.external-scenario-thumb {
    flex: 0 0 200px;
    max-width: 200px;
    overflow: hidden;
}

.external-scenario-thumb img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}
.solid-panel-app-scenarios .external-scenario-body {
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.solid-panel-app-scenarios .external-scenario-row{
    align-items: center;
}
.external-scenario-body {
    flex: 1;
    min-width: 0;
}

.external-scenario-body h4 {
    font-size: 15px;
    font-weight: bold;
    color: #333;
    margin: 0 0 8px 0;
}

.external-scenario-spec,
.external-scenario-ref {
    font-size: 13px;
    line-height: 1.6;
    color: #666;
    margin: 0 0 6px 0;
}

.external-scenario-more {
    flex-shrink: 0;
    align-self: center;
    font-size: 14px;
    color: #929269;
    text-decoration: none;
    font-weight: 500;
    white-space: nowrap;
}

.external-scenario-more:hover {
    text-decoration: underline;
}

.cta-buttons--three {
    gap: 16px;
}

@media (max-width: 767px) {
    .external-scenario-row {
        flex-direction: column;
    }
    .external-scenario-thumb {
        max-width: 100%;
        flex-basis: auto;
    }
    .external-scenario-more {
        align-self: flex-start;
    }
}

/* specifications2 多列表格（产品对比矩阵） */

.specs-table.specs-table-multi th {
    text-align: left;
}

.specs-table.specs-table-multi td {
    padding: 12px 16px;
}

.specs-table.specs-table-multi tbody tr.even-row {
    background: #F1F1F1;
}

.specs-table.specs-table-multi .row-label {
    font-weight: 500;
    color: #333;
    background: inherit;
}


/* 应用场景区块 */

.product-scenarios-section {
    margin-bottom: 33px;
}

.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(var(--scenarios-cols, 2), 1fr);
    gap: 25px;
}

.scenario-card {
    background: #fff;
    overflow: hidden;
    /* box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06); */
}

.scenario-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
}

.scenario-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.scenario-card:hover .scenario-image img {
    transform: scale(1.05);
}

.scenario-content {
    padding: 16px 0;
}

.scenario-content h4 {
    font-size: 15px;
    font-weight: bold;
    color: #333;
    margin: 0 0 8px 0;
}

.scenario-content p {
    font-size: 13px;
    line-height: 1.6;
    color: #666;
    margin: 0;
}


/* 成功案例区块 */

.product-success-section {
    margin-bottom: 33px;
}

.success-slider-wrapper {
    position: relative;
}

.success-swiper {
    overflow: hidden;
}

.success-card {
    position: relative;
}

.success-image {
    width: 100%;
    overflow: hidden;
    position: relative;
}

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

.success-info {
    padding: 16px 0 0 0;
    color: #333;
    text-align: left;
}

.success-info h4 {
    font-size: 15px;
    font-weight: bold;
    margin: 0 0 8px 0;
    color: #333;
    line-height: 1.4;
}

.success-info p {
    font-size: 13px;
    margin: 0;
    color: #666;
    font-weight: 500;
}

.success-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: all 0.2s;
    border: 0;
}

.success-nav:hover {
    background: #f5f5f5;
    transform: translateY(-50%) scale(1.05);
}

.success-nav.prev {
    left: 17px;
}

.success-nav.next {
    right: 17px;
}

.success-nav img {
    width: 100%;
    height: 100%;
}


/* CTA 区块 */

.product-cta-section {
    background: #F6F6F2;
    border: 1px solid rgba(146, 146, 105, 0.5);
    padding: 48px;
    text-align: center;
}

.cta-content h3 {
    font-size: 20px;
    font-weight: bold;
    color: #3A3A32;
    margin: 0 0 12px 0;
}

.cta-content p {
    font-size: 15px;
    line-height: 1.7;
    color: #5B5B47;
    font-weight: 500;
    margin: 0 0 24px 0;
}

.cta-buttons {
    display: flex;
    gap: 25px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-outline {
    display: inline-block;
    padding: 12px 28px;
    border: 1px solid #929269;
    border-radius: 4px;
    color: #929269;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
}

.btn-primary {
    display: inline-block;
    padding: 12px 28px;
    background: #ABAD64;
    border-radius: 4px;
    color: #fff;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
    box-shadow: 0px 4px 42px 0px rgba(38, 33, 22, 0.1);
}

.btn-primary:hover {
    background: #ABAD64;
}


/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 1199px) {
    .product-hero {
        height: 400px;
    }
    .product-hero .hero-title {
        font-size: 40px;
    }
    .content-layout {
        gap: 30px;
    }
    .sidebar-nav {
        width: 260px;
    }
    .structure-diagram {
        flex-direction: column;
        gap: 24px;
    }
    .diagram-image {
        max-width: 100%;
    }
}

@media (max-width: 991px) {
    .product-hero {
        height: 280px;
    }
    .product-hero .hero-title {
        font-size: 28px;
    }
    .product-hero .hero-subtitle {
        font-size: 14px;
    }
    .main-content-wrapper .container-box {
        padding: 0 16px;
    }
    .content-layout {
        flex-direction: column;
    }
    .sidebar-nav {
        width: 100%;
        position: static;
        margin-bottom: 0;
    }
    .nav-header {
        border-radius: 8px;
        border-bottom: 1px solid #e8e8e8;
        padding: 12px 16px;
        cursor: pointer;
        justify-content: space-between;
        display: flex;
    }
    .nav-header:active {
        background: #f5f5f5;
    }
    .mobile-toggle {
        display: flex;
    }
    .category-nav {
        display: none;
        border-radius: 0 0 8px 8px;
        max-height: 60vh;
        overflow-y: auto;
    }
    .category-nav.expanded {
        display: block;
    }
    .nav-link {
        padding: 12px 16px;
        font-size: 13px;
    }
    .sub-link {
        padding: 10px 16px 10px 24px;
        font-size: 12px;
    }
    .third-link {
        padding: 8px 16px 8px 32px;
        font-size: 12px;
    }
    .scenarios-grid {
        gap: 16px;
    }
    .scenario-image {
        height: 150px;
    }
    .success-image {
        height: 280px;
    }
    .product-cta-section {
        padding: 32px 24px;
    }
    .container-padding {
        padding: 0 16px;
    }
}

@media (max-width: 767px) {
    .product-hero {
        height: 220px;
        min-height: 180px;
    }
    .product-hero .container-box {
        padding: 0 16px;
    }
    .product-hero .hero-content {
        max-width: 100%;
        padding: 0 8px;
    }
    .product-hero .hero-title {
        font-size: 22px;
        line-height: 1.3;
        margin-bottom: 8px;
    }
    .product-hero .hero-subtitle {
        font-size: 13px;
        line-height: 1.5;
    }
    .product-hero .hero-label {
        font-size: 11px;
        margin-bottom: 10px;
    }
    .product-breadcrumb-section {
        padding: 10px 0;
    }
    .product-breadcrumb-section .container-box {
        padding: 0 16px;
    }
    .product-breadcrumb {
        font-size: 11px;
        gap: 6px;
        flex-wrap: wrap;
    }
    .main-content-wrapper {
        padding: 20px 0 40px;
    }
    .main-content-wrapper .container-box {
        padding: 0 12px;
    }
    /* 区块标签 */
    .section-label {
        margin-bottom: 14px;
    }
    .section-label .label-bar {
        width: 6px;
        height: 32px;
    }
    .section-label .label-text {
        font-size: 13px;
        padding: 8px 14px;
    }
    /* 产品描述 */
    .product-description-section {
        margin-bottom: 24px;
    }
    .desc-banner {
        margin-bottom: 16px;
        border-radius: 6px;
        overflow: hidden;
    }
    .desc-content h2 {
        font-size: 15px;
        margin-bottom: 10px;
        line-height: 1.4;
    }
    .desc-content p {
        font-size: 13px;
        line-height: 1.7;
    }
    /* 产品结构 */
    .product-structure-section {
        margin-bottom: 24px;
    }
    .structure-content h3 {
        font-size: 14px;
        margin-bottom: 8px;
    }
    .structure-content>p {
        font-size: 12px;
        margin-bottom: 16px;
    }
    .structure-diagram {
        padding: 12px;
        border-radius: 6px;
    }
    .diagram-image {
        width: 100%;
    }
    /* 核心优势 */
    .product-advantages-section {
        margin-bottom: 24px;
    }
    .advantages-grid {
        gap: 12px;
    }
    .advantage-card {
        padding: 14px;
        gap: 10px;
        border-radius: 6px;
        background: #fafafa;
    }
    .advantage-card-header {
        gap: 10px;
    }
    .advantage-icon {
        width: 32px;
        height: 32px;
    }
    .advantage-card-header h4,
    .advantage-content h4 {
        font-size: 13px;
    }
    .advantage-content p {
        font-size: 12px;
        line-height: 1.6;
    }
    /* 技术规格表格 */
    .product-specs-section {
        margin-bottom: 24px;
    }
    .specs-table-wrapper {
        border-radius: 0;
        border: none;
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    }
    .specs-table {
        font-size: 11px;
    }
    .specs-table th {
        padding: 10px 8px;
        font-size: 11px;
        white-space: nowrap;
    }
    .specs-table td {
        padding: 8px;
    }
    .specs-table .category-cell {
        font-size: 11px;
        padding: 10px 8px;
    }
    /* 应用场景 */
    .product-scenarios-section {
        margin-bottom: 24px;
    }
    .scenarios-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .scenario-card {
        border-radius: 8px;
        /* box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08); */
    }
    .scenario-image {
        height: 180px;
    }
    .scenario-content {
        padding: 14px;
    }
    .scenario-content h4 {
        font-size: 14px;
        margin-bottom: 6px;
    }
    .scenario-content p {
        font-size: 12px;
        line-height: 1.6;
    }
    /* 成功案例轮播 */
    .product-success-section {
        margin-bottom: 24px;
    }
    .success-slider-wrapper {
        padding: 0 32px;
        position: relative;
    }
    .success-image {
        height: 180px;
        border-radius: 8px;
        overflow: hidden;
    }
    .success-info {
        padding: 12px 0 0 0;
    }
    .success-info h4 {
        font-size: 14px;
        margin: 0 0 6px 0;
    }
    .success-info p {
        font-size: 12px;
    }
    .swiper-counter {
        bottom: 70px;
        right: 10px;
        padding: 4px 10px;
        font-size: 12px;
    }
    .success-nav {
        width: 28px;
        height: 28px;
    }
    .success-nav.prev {
        left: 0;
    }
    .success-nav.next {
        right: 0;
    }
    .success-nav img {
        width: 14px;
        height: 14px;
    }
    /* CTA区域 */
    .product-cta-section {
        padding: 24px 16px;
        border-radius: 8px;
    }
    .cta-content h3 {
        font-size: 15px;
        margin-bottom: 10px;
    }
    .cta-content p {
        font-size: 12px;
        margin-bottom: 18px;
        line-height: 1.6;
    }
    .cta-buttons {
        flex-direction: column;
        gap: 10px;
    }
    .btn-outline,
    .btn-primary {
        width: 100%;
        text-align: center;
        padding: 12px 20px;
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .product-hero {
        height: 180px;
        min-height: 160px;
        margin-top: 60px;
    }
    .product-hero .hero-title {
        font-size: 18px;
    }
    .product-hero .hero-subtitle {
        font-size: 12px;
    }
    .product-breadcrumb {
        font-size: 10px;
        flex-wrap: wrap;
        gap: 4px;
    }
    .product-breadcrumb .separator {
        margin: 0 2px;
    }
    /* 表格在小屏幕下的优化 */
    .specs-table-wrapper {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    .specs-table {
        font-size: 10px;
        min-width: 500px;
    }
    .specs-table th,
    .specs-table td {
        padding: 8px 6px;
    }
    /* 导航菜单 */
    .nav-link {
        padding: 10px 12px;
        font-size: 12px;
    }
    .sub-link {
        padding: 8px 12px 8px 20px;
        font-size: 11px;
    }
    .third-link {
        padding: 6px 12px 6px 28px;
        font-size: 11px;
    }
    /* 场景卡片 */
    .scenario-image {
        height: 150px;
    }
    /* 轮播 */
    .success-image {
        height: 150px;
    }
    .success-slider-wrapper {
        padding: 0 28px;
    }
}


/* Swiper 分页样式 */

.swiper-pagination {
    display: none;
}

.swiper-counter {
    position: absolute;
    bottom: 80px;
    right: 16px;
    background: rgba(0, 0, 0, 0.5);
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 500;
    color: white;
    z-index: 10;
}

.swiper-counter .current {
    color: white;
}


/* ============================================
   Mobile Touch & Performance Optimizations
   ============================================ */

@media (max-width: 767px) {
    /* 触摸优化 */
    .nav-link,
    .sub-link,
    .third-link,
    .btn-outline,
    .btn-primary,
    .success-nav {
        -webkit-tap-highlight-color: transparent;
        touch-action: manipulation;
    }
    /* 图片优化 */
    .desc-banner img,
    .scenario-image img,
    .success-image img,
    .diagram-image img {
        max-width: 100%;
        height: auto;
        display: block;
    }
    /* 禁用悬停效果（移动端） */
    .scenario-card:hover .scenario-image img {
        transform: none;
    }
    /* 快速滚动优化 */
    .category-nav {
        -webkit-overflow-scrolling: touch;
    }
    /* 防止文本缩放 */
    body {
        -webkit-text-size-adjust: 100%;
    }
}


/* ============================================
   Image Preview Modal
   ============================================ */

.image-preview-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    align-items: center;
    justify-content: center;
}

.image-preview-modal.active {
    display: flex;
}

.image-preview-modal .modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    cursor: pointer;
    animation: fadeIn 0.3s ease;
}

.image-preview-modal .modal-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    z-index: 1;
    animation: zoomIn 0.3s ease;
}

.image-preview-modal .modal-image {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 4px;
    box-shadow: 0 10px 50px rgba(0, 0, 0, 0.5);
}

.image-preview-modal .modal-close {
    position: absolute;
    top: -45px;
    right: -10px;
    background: none;
    border: none;
    color: #fff;
    font-size: 32px;
    cursor: pointer;
    padding: 5px 10px;
    line-height: 1;
    transition: color 0.2s ease;
    z-index: 10;
}

.image-preview-modal .modal-close:hover {
    color: #ABAD64;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}


/* 移动端模态框优化 */

@media (max-width: 767px) {
    .image-preview-modal .modal-image {
        max-width: 95vw;
        max-height: 80vh;
    }
    .image-preview-modal .modal-close {
        top: -35px;
        font-size: 28px;
    }
}


/* 场景图片添加点击样式 */

.scenario-card {
    cursor: pointer;
}

.scenario-card .scenario-image {
    position: relative;
    overflow: hidden;
}

.scenario-card .scenario-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0);
    transition: background 0.3s ease;
    pointer-events: none;
}

.scenario-card:hover .scenario-image::after {
    background: rgba(0, 0, 0, 0.15);
}


/* 添加放大镜图标 */

/* .scenario-card .scenario-image::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    z-index: 2;
    transition: transform 0.3s ease;
    pointer-events: none;
}

.scenario-card:hover .scenario-image::before {
    transform: translate(-50%, -50%) scale(1);
} */

/* .scenario-card .scenario-image::before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'%3E%3C/circle%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'%3E%3C/line%3E%3Cline x1='11' y1='8' x2='11' y2='14'%3E%3C/line%3E%3Cline x1='8' y1='11' x2='14' y2='11'%3E%3C/line%3E%3C/svg%3E");
    background-size: 24px;
    background-repeat: no-repeat;
    background-position: center;
    background-color: transparent;
} */

@media (max-width: 767px) {
    .scenario-card .scenario-image::before {
        display: none;
    }
}
/* External Content Loading Styles */
.error-message {
    padding: 20px;
    background: #f8d7da;
    color: #721c24;
    border-radius: 4px;
    text-align: center;
    margin: 20px 0;
}