.inner-banner {
    background: url('https://www.lttxjs.com/portal-saas/new2022042909473913276/cms/image/2be5d3cf-03bf-4475-a626-d2509d2764e0.jpg') no-repeat center center;
    background-size: cover;
    color: #fff;
    padding: 80px 0;
    text-align: center;
    position: relative;
}

.inner-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
}

.inner-banner h1 {
    font-size: 32px;
    margin-bottom: 10px;
    position: relative;
    z-index: 1;
}

.inner-banner .breadcrumb {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    position: relative;
    z-index: 1;
}

.inner-banner .breadcrumb a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
}

.inner-banner .breadcrumb a:hover {
    color: #fff;
}

.inner-content {
    padding: 60px 0;
    min-height: 400px;
}

.inner-layout {
    display: grid;
    grid-template-columns: 265px 1fr;
    gap: 30px;
}

.inner-sidebar .sidebar-categories {
    position: relative;
    background: #fdfdfd;
}

.inner-sidebar .sidebar-categories::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    width: 7px;
    height: 100%;
    background: #ededed;
}

.inner-sidebar .sidebar-categories h4 {
    font-size: 26px;
    color: #fff;
    margin: 0;
    padding: 20px 40px;
    background-color: #2eb2ed;
    font-weight: 700;
    font-family: "Microsoft YaHei";
    line-height: 1;
}

.inner-sidebar .sidebar-categories h4::after {
    content: "PRODUCTS CENTER";
    display: block;
    font-size: 14px;
    font-family: Arial;
    margin-top: 10px;
    font-weight: normal;
    opacity: 0.9;
}

.inner-sidebar .sidebar-categories ul {
    list-style: none;
    margin: 0;
    padding: 25px 0;
}

.inner-sidebar .sidebar-categories li {
    position: relative;
    margin-bottom: 0;
}

.inner-sidebar .sidebar-categories li a {
    display: flex;
    align-items: center;
    width: 100%;
    padding-left: 35px;
    line-height: 44px;
    font-size: 14px;
    color: #4e4e4e;
    font-weight: 400;
    text-decoration: none;
    transition: all 0.3s;
    border-left: 7px solid #ededed;
    padding-right: 15px;
}

.inner-sidebar .sidebar-categories li a span {
    width: 100%;
    border-bottom: 1px solid #eee;
}

.inner-sidebar .sidebar-categories li a:hover,
.inner-sidebar .sidebar-categories li a.active {
    color: #2eb2ed;
    border-left-color: #2eb2ed;
}

.about-section {
    margin-bottom: 40px;
}

.about-section h2 {
    font-size: 24px;
    color: #333;
    margin-bottom: 20px;
    padding-left: 15px;
    border-left: 4px solid #007bff;
}

.about-section p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 15px;
    font-size: 15px;
}

/* 产品特点横向排列样式 */
.about-section.features-inline {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
}

.about-section.features-inline h2 {
    width: 100%;
    margin-bottom: 15px;
}

.about-section.features-inline p {
    display: inline-block;
    margin-right: 30px;
    margin-bottom: 10px;
    white-space: nowrap;
}

.about-section img {
    max-width: 100%;
    height: auto;
    margin: 20px 0;
    border-radius: 8px;
}

.product-categories-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.category-card {
    background: #fff;
    border: 1px solid #eee;
    border-radius: 8px;
    overflow: hidden;
    text-align: center;
    transition: all 0.3s;
    cursor: pointer;
}

.category-card:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    transform: translateY(-4px);
}

.category-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.category-card h3 {
    padding: 20px;
    color: #333;
    font-size: 16px;
}

.products-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

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

.news-card {
    background: #fff;
    border: 1px solid #eee;
    border-radius: 8px;
    padding: 25px;
    transition: all 0.3s;
}

.news-card:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.news-card .news-meta {
    display: flex;
    justify-content: space-between;
    color: #999;
    font-size: 13px;
    margin-bottom: 12px;
}

.news-card h3 {
    font-size: 18px;
    color: #333;
    margin-bottom: 12px;
    line-height: 1.4;
}

.news-card h3 a {
    color: #333;
    text-decoration: none;
}

.news-card h3 a:hover {
    color: #007bff;
}

.news-card p {
    color: #666;
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 12px;
}

.news-card .read-more {
    color: #007bff;
    text-decoration: none;
    font-size: 14px;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.contact-info {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 8px;
}

.contact-info h3 {
    font-size: 20px;
    color: #333;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #007bff;
}

.contact-info p {
    color: #666;
    line-height: 2;
    font-size: 15px;
}

.contact-info a {
    color: #007bff;
    text-decoration: none;
}

.contact-form {
    background: #fff;
    padding: 30px;
    border: 1px solid #eee;
    border-radius: 8px;
}

.contact-form h3 {
    font-size: 20px;
    color: #333;
    margin-bottom: 20px;
}

.contact-form .form-group {
    margin-bottom: 18px;
}

.contact-form label {
    display: block;
    margin-bottom: 6px;
    color: #666;
    font-size: 14px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    transition: border-color 0.3s;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: #007bff;
}

.contact-form textarea {
    min-height: 100px;
    resize: vertical;
}

.contact-form button {
    background: #007bff;
    color: #fff;
    padding: 10px 24px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: opacity 0.3s;
}

.contact-form button:hover {
    opacity: 0.9;
}

.contact-map {
    background: #fff;
    padding: 30px;
    border: 1px solid #eee;
    border-radius: 8px;
}

.contact-map h3 {
    font-size: 20px;
    color: #333;
    margin-bottom: 20px;
}

.job-list {
    display: grid;
    gap: 20px;
}

.job-item {
    background: #fff;
    border: 1px solid #eee;
    border-radius: 8px;
    padding: 25px;
    transition: all 0.3s;
}

.job-item:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.job-item h3 {
    color: #007bff;
    font-size: 20px;
    margin-bottom: 10px;
}

.job-item .job-meta {
    color: #999;
    font-size: 14px;
    margin-bottom: 15px;
}

.job-item .job-meta span {
    margin-right: 20px;
}

.job-item .job-desc {
    color: #666;
    line-height: 1.8;
    font-size: 14px;
}

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

.patent-item {
    background: #f8f9fa;
    border-left: 4px solid #007bff;
    padding: 20px;
    border-radius: 4px;
}

.patent-item h3 {
    color: #333;
    font-size: 16px;
    margin-bottom: 8px;
}

.patent-item p {
    color: #666;
    font-size: 13px;
    line-height: 1.6;
}

.faq-item {
    background: #fff;
    border: 1px solid #eee;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 15px;
}

.faq-item h3 {
    color: #007bff;
    font-size: 16px;
    margin-bottom: 10px;
}

.faq-item p {
    color: #666;
    line-height: 1.8;
    font-size: 14px;
}

.detail-content {
    background: #fff;
    border: 1px solid #eee;
    border-radius: 8px;
    padding: 30px;
}

.detail-content h1 {
    color: #333;
    font-size: 26px;
    margin-bottom: 15px;
    text-align: center;
}

.detail-content .meta {
    text-align: center;
    color: #999;
    font-size: 14px;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 1px solid #eee;
}

.detail-content p {
    color: #666;
    line-height: 2;
    font-size: 15px;
    margin-bottom: 15px;
}

.detail-content img {
    max-width: 100%;
    height: auto;
    margin: 15px 0;
    border-radius: 4px;
}

.product-detail-img {
    width: 100%;
    max-width: 500px;
    margin: 0 auto 20px;
    display: block;
}

.back-link {
    display: inline-block;
    margin-top: 30px;
    color: #007bff;
    text-decoration: none;
    font-size: 14px;
}

.back-link:hover {
    text-decoration: underline;
}

.tab-nav {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
    border-bottom: 1px solid #eee;
}

.tab-nav a {
    padding: 12px 30px;
    color: #666;
    text-decoration: none;
    border-bottom: 2px solid transparent;
    transition: all 0.3s;
    margin-bottom: -1px;
}

.tab-nav a.active,
.tab-nav a:hover {
    color: #007bff;
    border-bottom-color: #007bff;
}

.equipment-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
}

.equipment-item {
    background: #fff;
    border: 1px solid #eee;
    border-radius: 4px;
    overflow: hidden;
    text-align: center;
    transition: all 0.3s;
}

.equipment-item:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.equipment-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    cursor: pointer;
    transition: transform 0.3s;
}

.equipment-item img:hover {
    transform: scale(1.05);
}

.equipment-item p {
    padding: 8px;
    color: #333;
    font-size: 13px;
}

.pagination {
    text-align: center;
    margin-top: 30px;
    padding: 15px 0;
}

.pagination a,
.pagination span {
    display: inline-block;
    min-width: 36px;
    height: 36px;
    line-height: 36px;
    margin: 0 3px;
    padding: 0 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    color: #666;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s;
}

.pagination a:hover {
    background: #2eb2ed;
    color: #fff;
    border-color: #2eb2ed;
}

.pagination .current {
    background: #2eb2ed;
    color: #fff;
    border-color: #2eb2ed;
}

.pagination .disabled {
    color: #ccc;
    cursor: not-allowed;
}

.patent-number-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
}

.patent-number-item {
    background: #f8f9fa;
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    padding: 20px 15px;
    text-align: center;
    color: #333;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s;
}

.patent-number-item:hover {
    background: #2eb2ed;
    color: #fff;
    border-color: #2eb2ed;
}

.patent-image-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.patent-image-item {
    text-align: center;
}

.patent-image-item img {
    width: 100%;
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    transition: transform 0.3s;
    cursor: pointer;
}

.patent-image-item img:hover {
    transform: scale(1.05);
}

.patent-image-item p {
    margin-top: 8px;
    color: #333;
    font-size: 13px;
    font-weight: 500;
}

@media (max-width: 768px) {
    .product-categories-grid,
    .products-list,
    .patent-list,
    .equipment-grid,
    .patent-number-grid,
    .patent-image-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .news-list-grid {
        grid-template-columns: 1fr;
    }

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