@charset "UTF-8";
/* ============================================
   康鸿微电子 - 现代化企业官网样式
   ============================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
    color: #333;
    background: #f8f9fa;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    color: #3464BC;
    text-decoration: none;
    transition: color 0.2s;
}

    a:hover {
        color: #2a50a0;
    }

img {
    max-width: 100%;
    height: auto;
}

ul, ol {
    list-style: none;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -15px;
}

.col, .col-3, .col-4, .col-6, .col-8, .col-9, .col-12 {
    padding: 0 15px;
}

.col-3 {
    width: 25%;
}

.col-4 {
    width: 33.333%;
}

.col-6 {
    width: 50%;
}

.col-8 {
    width: 66.666%;
}

.col-9 {
    width: 75%;
}

.col-12 {
    width: 100%;
}

.text-center {
    text-align: center;
}

.mt-20 {
    margin-top: 20px;
}

.mt-30 {
    margin-top: 30px;
}

.mb-20 {
    margin-bottom: 20px;
}

.clearfix::after {
    content: '';
    display: table;
    clear: both;
}

.site-header {
    background: #fff;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-top {
    background: linear-gradient(135deg, #3464BC 0%, #4a82d6 100%);
    color: #fff;
    padding: 8px 0;
    font-size: 13px;
}

    .header-top .container {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .header-top a {
        color: #fff;
        margin-left: 15px;
    }

.lang-switch {
    margin-left: 15px;
}

    .lang-switch a {
        margin-left: 0;
        padding: 0 2px;
    }

        .lang-switch a.active {
            font-weight: 700;
            text-decoration: underline;
        }

.lang-sep {
    color: rgba(255,255,255,0.5);
    padding: 0 3px;
}

.header-main {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
    text-decoration: none;
}

.logo-img {
    max-height: 60px;
    max-width: 200px;
}

.logo-info {
    display: flex;
    flex-direction: column;
    min-width: 280px;
}

.logo-text {
    font-size: 22px;
    font-weight: 700;
    color: #3464BC;
    line-height: 1.3;
    text-align: justify;
    text-align-last: justify;
}

.logo-sub {
    font-size: 11px;
    color: #5a7a8a;
    letter-spacing: 1px;
    margin-top: 4px;
    text-align: justify;
    text-align-last: justify;
}

.header-contact {
    font-size: 13px;
    color: #666;
}

    .header-contact .hotline {
        font-size: 24px;
        font-weight: 800;
        color: #3464BC;
        letter-spacing: 1px;
    }

.main-nav {
    background: #3464BC;
}

    .main-nav .nav-container {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .main-nav ul {
        display: flex;
    }

    .main-nav li {
        position: relative;
    }

    .main-nav a {
        display: block;
        color: #fff;
        padding: 14px 24px;
        font-size: 15px;
        transition: background 0.2s;
    }

        .main-nav a:hover, .main-nav li.active > a {
            background: #3464BC;
        }

    .main-nav .nav-search {
        display: flex;
        align-items: center;
        gap: 6px;
        color: #fff;
        padding: 14px 20px;
        font-size: 14px;
        text-decoration: none;
        white-space: nowrap;
        transition: background 0.2s;
    }

        .main-nav .nav-search:hover {
            background: rgba(255,255,255,0.15);
        }

    .main-nav .search-icon {
        flex-shrink: 0;
    }

.banner-carousel {
    position: relative;
    width: 100vw;
    margin-left: calc(-50vw + 50%);
    overflow: hidden;
    background: #3464BC;
}

    .banner-carousel .banner-slides {
        position: relative;
        width: 100%;
        height: 520px;
    }

.banner-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.8s ease-in-out;
    z-index: 1;
}

    .banner-slide.active {
        opacity: 1;
        z-index: 2;
    }

    .banner-slide img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

.banner-dots {
    position: absolute;
    bottom: 18px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.banner-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255,255,255,0.4);
    cursor: pointer;
    transition: background 0.3s, transform 0.3s;
    border: 2px solid rgba(255,255,255,0.6);
}

    .banner-dot.active {
        background: #fff;
        border-color: #fff;
        transform: scale(1.2);
    }

.banner-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(0,0,0,0.3);
    color: #fff;
    border: none;
    font-size: 24px;
    cursor: pointer;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s;
}

    .banner-arrow:hover {
        background: rgba(0,0,0,0.6);
    }

    .banner-arrow.prev {
        left: 20px;
    }

    .banner-arrow.next {
        right: 20px;
    }

.banner-overlay {
    position: absolute;
    top: 22%;
    left: 0;
    width: 100%;
    z-index: 10;
    pointer-events: none;
}

.banner-overlay-content {
    text-align: center;
    color: #fff;
    width: 80%;
    max-width: 800px;
    margin: 0 auto;
}

.banner-overlay-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
    text-shadow: 0 2px 8px rgba(0,0,0,0.5);
    letter-spacing: 2px;
    line-height: 1.2;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.banner-overlay-subtitle {
    font-size: 22px;
    font-weight: 400;
    text-shadow: 0 1px 4px rgba(0,0,0,0.4);
    opacity: 0.9;
    line-height: 1.5;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.hot-products-section {
    background: #f8f9fa;
    padding: 30px 0;
}

.hot-products-header {
    text-align: center;
    margin-bottom: 20px;
}

    .hot-products-header h2 {
        font-size: 24px;
        color: #3464BC;
    }

.marquee-wrapper {
    overflow: hidden;
    width: 100%;
}

.marquee-track {
    display: flex;
    gap: 20px;
    animation: marquee-scroll 40s linear infinite;
    width: max-content;
}

    .marquee-track:hover {
        animation-play-state: paused;
    }

.marquee-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex-shrink: 0;
    width: 140px;
}

    .marquee-item img {
        width: 120px;
        height: 120px;
        object-fit: contain;
        background: #fff;
        border-radius: 8px;
        border: 1px solid #e0e0e0;
        padding: 8px;
    }

.marquee-label {
    font-size: 12px;
    color: #666;
    margin-top: 8px;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 130px;
}

@keyframes marquee-scroll {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(-50%);
    }
}

.section {
    padding: 50px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 35px;
}

    .section-title h2 {
        font-size: 28px;
        color: #3464BC;
        margin-bottom: 10px;
    }

    .section-title p {
        font-size: 15px;
        color: #999;
    }

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
}

.product-card {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    transition: transform 0.2s, box-shadow 0.2s;
}

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

    .product-card .product-img {
        height: 180px;
        background: #f8f9fa;
        display: flex;
        align-items: center;
        justify-content: center;
        overflow: hidden;
    }

        .product-card .product-img img {
            max-height: 100%;
        }

    .product-card .product-info {
        padding: 15px;
    }

    .product-card .product-name {
        font-size: 14px;
        font-weight: 600;
        margin-bottom: 5px;
        color: #333;
    }

    .product-card .product-model {
        font-size: 12px;
        color: #999;
    }

.main-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 15px;
    min-height: 500px;
}

    .main-content .row {
        display: flex;
        flex-wrap: wrap;
        gap: 20px;
        align-items: flex-start;
    }

    .main-content .col-3 {
        flex: 0 0 220px;
        max-width: 220px;
    }

    .main-content .col-9 {
        flex: 1;
        min-width: 0;
        max-width: none;
    }

.product-table-container {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    padding: 20px;
    margin: 20px 0;
    overflow-x: auto;
}

.product-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

    .product-table thead {
        background: #3464BC;
        color: #fff;
    }

    .product-table th {
        padding: 12px 15px;
        text-align: center;
        font-weight: 600;
    }

    .product-table td {
        padding: 10px 15px;
        border-bottom: 1px solid #e9ecef;
        vertical-align: middle;
        text-align: center;
		white-space: nowrap;
    }

    .product-table tbody tr:hover {
        background: #f8f9fa;
    }

.btn-save {
    display: inline-block;
    width: 28px;
    height: 28px;
    line-height: 28px;
    text-align: center;
    background: #3464BC;
    color: #fff;
    border-radius: 4px;
    font-size: 14px;
}

    .btn-save:hover {
        background: #2a50a0;
        color: #fff;
    }

.btn-download {
    display: inline-block;
    padding: 4px 10px;
    background: #3464BC;
    color: #fff;
    border-radius: 4px;
    font-size: 12px;
}

    .btn-download:hover {
        background: #2a50a0;
        color: #fff;
    }

.product-filter {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
    margin-bottom: 10px;
}

    .product-filter .search-box {
        display: flex;
        gap: 10px;
    }

.search-input {
    padding: 8px 12px;
    border: 1px solid #dee2e6;
    border-radius: 4px;
    width: 200px;
    font-size: 14px;
}

.btn-search {
    padding: 8px 16px;
    background: #3464BC;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
}

    .btn-search:hover {
        background: #2a50a0;
    }

.sidebar {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    margin-bottom: 20px;
}

.sidebar-title {
    background: #3464BC;
    color: #fff;
    padding: 12px 20px;
    font-size: 15px;
    font-weight: 600;
}

.sidebar-menu {
    list-style: none;
    padding: 0;
    margin: 0;
}

    .sidebar-menu li {
        border-bottom: 1px solid #f0f0f0;
    }

    .sidebar-menu .cate-parent {
        position: relative;
    }

        .sidebar-menu .cate-parent > a {
            font-weight: 600;
            color: #333;
            display: inline-block;
        }

            .sidebar-menu .cate-parent > a.cate-link {
                padding-left: 28px;
            }

    .sidebar-menu .cate-toggle {
        display: inline-block;
        width: 28px;
        height: 100%;
        text-align: center;
        cursor: pointer;
        font-size: 12px;
        color: #999;
        position: absolute;
        left: 0;
        top: 0;
        padding: 10px 0;
        line-height: 1.4;
        user-select: none;
    }

        .sidebar-menu .cate-toggle:hover {
            color: #3464BC;
        }

    .sidebar-menu .cate-children {
        display: none;
    }

        .sidebar-menu .cate-children.expanded {
            display: block;
        }

    .sidebar-menu li.cate-child > a {
        padding-left: 36px;
        font-size: 13px;
        color: #666;
    }

    .sidebar-menu li.cate-child:last-child {
        border-bottom: none;
    }

    .sidebar-menu a {
        display: block;
        padding: 10px 20px;
        color: #555;
        font-size: 14px;
        transition: all 0.2s;
    }

        .sidebar-menu a:hover, .sidebar-menu a.active {
            background: #eef4f7;
            color: #3464BC;
            padding-left: 25px;
        }

    .sidebar-menu li.cate-child a:hover, .sidebar-menu li.cate-child a.active {
        padding-left: 41px;
    }

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    padding: 20px 0;
    font-size: 14px;
    flex-wrap: wrap;
}

    .pagination a {
        padding: 6px 12px;
        border: 1px solid #dee2e6;
        border-radius: 4px;
        color: #3464BC;
    }

        .pagination a:hover {
            background: #3464BC;
            color: #fff;
        }

    .pagination .current {
        padding: 6px 12px;
        background: #3464BC;
        color: #fff;
        border-radius: 4px;
    }

    .pagination .page-ellipsis {
        padding: 6px 4px;
        color: #999;
    }

    .pagination .page-info {
        padding: 6px 8px;
        color: #666;
        font-size: 13px;
        margin-left: 10px;
    }

.page-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 30px 20px;
}

.page-header {
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid #e9ecef;
}

    .page-header h1 {
        font-size: 28px;
        color: #3464BC;
    }

.page-content {
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    line-height: 1.8;
}

    .page-content img {
        max-width: 100%;
        height: auto;
    }

.breadcrumb {
    padding: 10px 0;
    font-size: 14px;
    color: #6c757d;
}

    .breadcrumb a {
        color: #3464BC;
    }

    .breadcrumb span {
        margin: 0 8px;
    }

.news-page-layout {
    display: flex;
    gap: 25px;
    margin-top: 15px;
}

.news-sidebar {
    width: 220px;
    flex-shrink: 0;
}

    .news-sidebar .sidebar-title {
        font-size: 18px;
        font-weight: 600;
        color: #333;
        padding: 12px 16px;
        margin: 0;
        background: #f0f4f8;
        border-left: 4px solid #3464BC;
        border-radius: 4px 4px 0 0;
    }

.news-cate-list {
    list-style: none;
    padding: 0;
    margin: 0;
    background: #fff;
    border: 1px solid #e8eaed;
    border-top: none;
    border-radius: 0 0 4px 4px;
}

    .news-cate-list li {
        border-bottom: 1px solid #f0f0f0;
    }

        .news-cate-list li:last-child {
            border-bottom: none;
        }

        .news-cate-list li a {
            display: block;
            padding: 12px 16px;
            color: #555;
            font-size: 14px;
            text-decoration: none;
            transition: all 0.15s;
        }

            .news-cate-list li a:hover {
                background: #f5f7fa;
                color: #3464BC;
                padding-left: 22px;
            }

        .news-cate-list li.active a {
            background: #3464BC;
            color: #fff;
            font-weight: 500;
        }

.news-main {
    flex: 1;
    min-width: 0;
}

.news-list-container {
    background: #fff;
    border: 1px solid #e8eaed;
    border-radius: 4px;
}

.news-item {
    border-bottom: 1px solid #f0f0f0;
}

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

    .news-item a {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 14px 20px;
        text-decoration: none;
        transition: background 0.15s;
    }

        .news-item a:hover {
            background: #f5f7fa;
        }

    .news-item .news-title {
        font-size: 15px;
        color: #333;
        flex: 1;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
        padding-right: 15px;
    }

    .news-item a:hover .news-title {
        color: #3464BC;
    }

    .news-item .news-date {
        font-size: 13px;
        color: #999;
        white-space: nowrap;
        flex-shrink: 0;
    }

    .news-item .news-summary {
        font-size: 13px;
        color: #888;
        padding: 0 20px 12px 20px;
        line-height: 1.5;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

.news-empty {
    text-align: center;
    padding: 60px 20px;
    color: #999;
    font-size: 14px;
}

.news-main .page-header {
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid #e9ecef;
}

    .news-main .page-header h1 {
        font-size: 22px;
        color: #3464BC;
        margin: 0;
    }

.news-detail-content {
    background: #fff;
    padding: 40px 50px;
    border-radius: 4px;
    border: 1px solid #e8eaed;
}

.news-detail-title {
    text-align: center;
    font-size: 24px;
    font-weight: 600;
    color: #333;
    margin: 0 0 20px 0;
    line-height: 1.5;
}

.news-detail-meta {
    text-align: center;
    font-size: 13px;
    color: #999;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
    margin-bottom: 30px;
}

    .news-detail-meta .meta-sep {
        margin: 0 10px;
        color: #ddd;
    }

.news-detail-summary {
    background: #f5f7fa;
    padding: 15px 20px;
    border-radius: 4px;
    margin: -10px 0 25px 0;
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    border-left: 3px solid #3464BC;
}

.news-detail-body {
    font-size: 15px;
    line-height: 1.8;
    color: #444;
}

    .news-detail-body p {
        margin-bottom: 15px;
    }

    .news-detail-body img {
        max-width: 100%;
        height: auto;
    }

.news-prevnext {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid #e8eaed;
}

.prevnext-item {
    padding: 8px 0;
    font-size: 14px;
    line-height: 1.6;
}

.prevnext-label {
    color: #999;
    font-weight: 600;
}

.prevnext-link {
    color: #3464BC;
    text-decoration: none;
}

    .prevnext-link:hover {
        color: #2a50a0;
        text-decoration: underline;
    }

.prevnext-item .no-link {
    color: #bbb;
}

@media (max-width: 768px) {
    .news-page-layout {
        flex-direction: column;
    }

    .news-sidebar {
        width: 100%;
    }

    .news-cate-list {
        display: flex;
        flex-wrap: wrap;
    }

        .news-cate-list li {
            border-bottom: 1px solid #f0f0f0;
            border-right: 1px solid #f0f0f0;
        }

            .news-cate-list li a {
                padding: 8px 14px;
                font-size: 13px;
            }

    .news-detail-content {
        padding: 20px 15px;
    }
}

.brand-customer-row {
    display: flex;
    gap: 30px;
    margin-bottom: 50px;
}

.brand-section, .customer-section {
    flex: 1;
    min-width: 0;
}

.section-title-row {
    font-size: 22px;
    font-weight: 600;
    color: #3464BC;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #3464BC;
}

.logo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 15px;
}

.logo-card {
    background: #fff;
    border: 1px solid #e8eaed;
    border-radius: 6px;
    padding: 15px;
    text-align: center;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100px;
}

    .logo-card:hover {
        box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        border-color: #3464BC;
    }

    .logo-card img {
        max-width: 100%;
        max-height: 70px;
        object-fit: contain;
    }

    .logo-card .brand-name {
        font-size: 13px;
        color: #666;
        margin-top: 8px;
    }

.home-news-list {
    background: #fff;
    border: 1px solid #e8eaed;
    border-radius: 8px;
    overflow: hidden;
}

.home-news-item {
    border-bottom: 1px solid #f0f0f0;
}

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

    .home-news-item a {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 12px 20px;
        text-decoration: none;
        transition: background 0.15s;
    }

        .home-news-item a:hover {
            background: #f5f7fa;
        }

    .home-news-item .news-title {
        color: #333;
        font-size: 14px;
        flex: 1;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
        padding-right: 15px;
    }

        .home-news-item .news-title::before {
            content: '';
            display: inline-block;
            width: 4px;
            height: 4px;
            background: #3464BC;
            border-radius: 50%;
            margin-right: 8px;
            vertical-align: middle;
        }

    .home-news-item .news-date {
        color: #999;
        font-size: 13px;
        white-space: nowrap;
    }

.btn {
    display: inline-block;
    padding: 8px 20px;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
}

.btn-primary {
    background: #3464BC;
    color: #fff;
}

    .btn-primary:hover {
        background: #2a50a0;
        color: #fff;
    }

.btn-outline {
    border: 1px solid #3464BC;
    color: #3464BC;
    background: transparent;
}

    .btn-outline:hover {
        background: #3464BC;
        color: #fff;
    }

.btn-danger {
    background: #dc3545;
    color: #fff;
}

    .btn-danger:hover {
        background: #c82333;
        color: #fff;
    }

.contact-page {
    max-width: 100%;
    margin: 0 auto;
    padding: 0;
}

.contact-header {
    margin-bottom: 30px;
}

    .contact-header h1 {
        font-size: 26px;
        color: #333;
        margin-bottom: 6px;
    }

    .contact-header p {
        color: #777;
        font-size: 14px;
    }

.contact-page .contact-grid {
    display: flex;
    gap: 60px;
    margin-bottom: 0;
}

.contact-info {
    flex: 0 0 38%;
    min-width: 0;
}

.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 14px 0;
    border-bottom: 1px solid #f0f0f0;
}

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

.contact-info-icon {
    width: 44px;
    height: 44px;
    flex-shrink: 0;
    background: #eef3fc;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}

.contact-info-label {
    font-size: 12px;
    color: #999;
    margin-bottom: 2px;
}

.contact-info-value {
    font-size: 15px;
    color: #333;
    line-height: 1.5;
}

.contact-map-wrap {
    flex: 1;
    min-width: 0;
}

.contact-map-container {
    width: 100%;
    height: 420px;
    border-radius: 10px;
    border: 1px solid #e0e0e0;
    overflow: hidden;
    z-index: 1;
}

@media (max-width: 768px) {
    .contact-page .contact-grid {
        flex-direction: column;
        gap: 30px;
    }

    .contact-info {
        flex: 1;
        max-width: 100%;
    }

    .contact-page {
        padding: 0;
    }

    .contact-map-container {
        height: 280px;
    }
}

.home-contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width:1200px;
    margin: 0 auto;
}

.home-contact-card {
    background: #fff;
    border-radius: 8px;
    padding: 30px 20px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    transition: transform 0.2s, box-shadow 0.2s;
    border: 1px solid #f0f0f0;
}

    .home-contact-card:hover {
        transform: translateY(-4px);
        box-shadow: 0 8px 24px rgba(0,0,0,0.10);
    }

    .home-contact-card .icon {
        font-size: 36px;
        margin-bottom: 12px;
        display: block;
    }

    .home-contact-card h4 {
        font-size: 14px;
        color: #999;
        margin-bottom: 6px;
        font-weight: 400;
    }

    .home-contact-card p {
        font-size: 15px;
        color: #333;
        font-weight: 500;
    }

@media (max-width: 768px) {
    .home-contact-grid {
        grid-template-columns: 1fr;
        gap: 15px;
        padding: 0 20px;
    }
}

.site-footer {
    background: #3464BC;
    color: #ccc;
    padding: 40px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-bottom: 30px;
}

.footer-section h4 {
    color: #fff;
    font-size: 15px;
    margin-bottom: 15px;
}

.footer-section p {
    font-size: 13px;
    line-height: 1.8;
    word-break: break-word;
    overflow-wrap: break-word;
}

.footer-section ul li {
    margin-bottom: 8px;
}

.footer-section a {
    color: #ccc;
    font-size: 13px;
}

    .footer-section a:hover {
        color: #fff;
    }

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    text-align: center;
    font-size: 13px;
}

    .footer-bottom a {
        color: #ccc;
        text-decoration: none;
    }

        .footer-bottom a:hover {
            color: #fff;
            text-decoration: underline;
        }

.footer-beian {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    margin: 0 5px;
}

    .footer-beian img {
        vertical-align: middle;
    }

.online-support {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 999;
}

.form-group {
    margin-bottom: 15px;
}

.form-label {
    display: block;
    margin-bottom: 5px;
    font-size: 14px;
    font-weight: 600;
    color: #333;
}

.form-input, .form-textarea, .form-select {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #dee2e6;
    border-radius: 4px;
    font-size: 14px;
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

@media (max-width: 768px) {
    .header-main {
        flex-direction: column;
        gap: 10px;
    }

    .main-nav ul {
        flex-wrap: wrap;
    }

    .main-nav a {
        padding: 10px 15px;
        font-size: 14px;
    }

    .main-nav .nav-search {
        padding: 10px 15px;
        font-size: 13px;
    }

    .hero-content h1 {
        font-size: 24px;
    }

    .banner-carousel .banner-slides {
        height: 320px;
    }

    .banner-arrow {
        width: 32px;
        height: 32px;
        font-size: 16px;
    }

    .banner-overlay-title {
        font-size: 28px;
    }

    .banner-overlay-subtitle {
        font-size: 16px;
    }

    .marquee-item {
        width: 100px;
    }

        .marquee-item img {
            width: 90px;
            height: 90px;
        }

    .row {
        flex-direction: column;
    }

    .col-3, .col-4, .col-6, .col-8, .col-9 {
        width: 100%;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .brand-customer-row {
        flex-direction: column;
        gap: 40px;
    }
}

.category-grid {
    padding: 20px 0;
}

.category-group {
    margin-bottom: 30px;
}

.category-group-title {
    font-size: 18px;
    font-weight: 700;
    color: #3464BC;
    padding-bottom: 10px;
    margin-bottom: 15px;
    border-bottom: 2px solid #3464BC;
    padding-left: 10px;
}

.category-grid-items {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.category-grid-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 150px;
    padding: 15px 10px;
    background: #fff;
    border: 1px solid #e8e8e8;
    border-radius: 8px;
    text-decoration: none;
    color: #333;
    transition: all 0.3s ease;
    cursor: pointer;
}

    .category-grid-item:hover {
        border-color: #3464BC;
        box-shadow: 0 4px 15px rgba(52,100,188,0.15);
        transform: translateY(-3px);
        color: #3464BC;
    }

.cate-grid-img {
    width: 120px;
    height: 120px;
    object-fit: cover;
    border-radius: 6px;
    margin-bottom: 10px;
}

.cate-grid-img-placeholder {
    width: 120px;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f0f4ff;
    border-radius: 6px;
    margin-bottom: 10px;
    font-size: 28px;
    font-weight: 700;
    color: #3464BC;
}

.cate-grid-name {
    font-size: 13px;
    text-align: center;
    line-height: 1.4;
    word-break: break-all;
}

.board-page {
    max-width: 1000px;
    margin: 0 auto;
}

.board-header {
    text-align: center;
    margin-bottom: 30px;
}

    .board-header h1 {
        font-size: 28px;
        color: #3464BC;
        margin-bottom: 10px;
    }

.board-subtitle {
    font-size: 15px;
    color: #999;
}

.board-form-wrapper {
    background: #fff;
    border-radius: 8px;
    padding: 40px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.board-form-row {
    display: flex;
    gap: 60px;
    margin-bottom: 18px;
}

.board-form-group {
    flex: 1;
    min-width: 0;
}

    .board-form-group label {
        display: block;
        margin-bottom: 6px;
        font-size: 14px;
        font-weight: 600;
        color: #374151;
    }

    .board-form-group .required {
        color: #dc2626;
    }

.board-full-row {
    margin-bottom: 18px;
}

.board-input {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 14px;
    color: #333;
    background: #fff;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
    box-sizing: border-box;
}

    .board-input:focus {
        border-color: #3464BC;
        box-shadow: 0 0 0 3px rgba(52,100,188,0.1);
    }

.board-textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 14px;
    color: #333;
    background: #fff;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
    resize: vertical;
    min-height: 120px;
    line-height: 1.6;
    box-sizing: border-box;
}

    .board-textarea:focus {
        border-color: #3464BC;
        box-shadow: 0 0 0 3px rgba(52,100,188,0.1);
    }

.board-form-actions {
    text-align: center;
    margin-top: 25px;
}

.board-submit-btn {
    padding: 12px 48px;
    font-size: 15px;
    border-radius: 6px;
    background: #3464BC;
    color: #fff;
    border: none;
    cursor: pointer;
    transition: background 0.2s;
}

    .board-submit-btn:hover {
        background: #2a50a0;
    }

.field-required {
    color: #dc2626;
    margin-left: 3px;
    font-size: 14px;
}

.board-full-row > label {
    display: block;
    margin-bottom: 6px;
    font-size: 14px;
    font-weight: 600;
    color: #374151;
}

.board-msg {
    padding: 12px 18px;
    border-radius: 6px;
    margin-top: 15px;
    font-size: 14px;
    text-align: center;
}

@media (max-width: 768px) {
    .banner-overlay {
        padding: 0 20px;
    }

    .banner-overlay-title {
        font-size: 24px;
    }

    .banner-overlay-subtitle {
        font-size: 14px;
    }

    .banner-slide {
        height: 300px;
    }
}

@media (max-width: 480px) {
    .banner-overlay-title {
        font-size: 20px;
    }

    .banner-overlay-subtitle {
        font-size: 13px;
    }

    .banner-slide {
        height: 220px;
    }
}

.board-msg-success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #6ee7b7;
}

.board-msg-error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}

@media (max-width: 768px) {
    .board-form-row {
        flex-direction: column;
        gap: 18px;
    }

    .board-form-wrapper {
        padding: 24px 20px;
    }

    .board-header h1 {
        font-size: 22px;
    }
}

.board-map-section {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid #eee;
}

.board-map-title {
    font-size: 20px;
    color: #3464BC;
    margin-bottom: 15px;
    font-weight: 600;
}

.board-map-container {
    width: 100%;
    height: 400px;
    border-radius: 8px;
    border: 1px solid #ddd;
    z-index: 1;
}

.contact-page {
    max-width: 1100px;
    margin: 0 auto;
    padding: 30px 20px 50px;
}

.contact-header {
    margin-bottom: 35px;
}

    .contact-header h1 {
        font-size: 28px;
        color: #333;
        margin-bottom: 8px;
    }

    .contact-header p {
        color: #777;
        font-size: 14px;
    }

.contact-page .contact-grid {
    display: flex;
    gap: 40px;
    margin-bottom: 35px;
}

.contact-info {
    flex: 1;
    min-width: 0;
}

.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px 0;
    border-bottom: 1px solid #f0f0f0;
}

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

.contact-info-icon {
    width: 44px;
    height: 44px;
    flex-shrink: 0;
    background: #eef3fc;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}

.contact-info-label {
    font-size: 12px;
    color: #999;
    margin-bottom: 2px;
}

.contact-info-value {
    font-size: 15px;
    color: #333;
    line-height: 1.5;
}

.contact-map-wrap {
    flex: 1.2;
    min-width: 0;
}

.contact-map-container {
    width: 100%;
    height: 400px;
    border-radius: 10px;
    border: 1px solid #e0e0e0;
    overflow: hidden;
    z-index: 1;
}

@media (max-width: 768px) {
    .contact-grid {
        flex-direction: column;
    }

    .contact-page {
        padding: 20px 15px 35px;
    }

    .contact-map-container {
        height: 280px;
    }
}

.about-detail-content {
    background: #fff;
    padding: 30px 40px;
    border-radius: 0;
}

    .about-detail-content .page-title {
        font-size: 22px;
        color: #333;
        text-align: center;
        margin-bottom: 24px;
        padding-bottom: 16px;
        border-bottom: 1px solid #e0e0e0;
    }

    .about-detail-content .page-body {
        font-size: 15px;
        line-height: 1.8;
        color: #444;
    }

.cert-table-wrap {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.cert-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

    .cert-table thead {
        background: #3464BC;
        color: #fff;
    }

    .cert-table th {
        padding: 12px 16px;
        text-align: left;
        font-weight: 600;
    }

    .cert-table td {
        padding: 14px 16px;
        border-bottom: 1px solid #eee;
        color: #444;
    }

    .cert-table tbody tr:hover {
        background: #f0f4ff;
    }

    .cert-table .col-name {
        width: auto;
    }

    .cert-table .col-date {
        width: 140px;
    }

    .cert-table .col-dl {
        width: 120px;
        text-align: center;
    }

.btn-download {
    display: inline-block;
    padding: 6px 18px;
    background: #3464BC;
    color: #fff !important;
    border-radius: 4px;
    font-size: 13px;
    text-decoration: none;
    transition: background 0.2s;
}

    .btn-download:hover {
        background: #2a50a0;
    }

.cert-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
    padding: 10px 0;
}

.cert-item {
    background: #fff;
    border: 1px solid #e8e8e8;
    border-radius: 8px;
    overflow: hidden;
    transition: box-shadow 0.3s, transform 0.2s;
}

    .cert-item:hover {
        box-shadow: 0 4px 16px rgba(0,0,0,0.1);
        transform: translateY(-2px);
    }

    .cert-item a {
        text-decoration: none;
        color: inherit;
        display: block;
    }

.cert-img-wrap {
    width: 100%;
    height: 180px;
    overflow: hidden;
    background: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
}

    .cert-img-wrap img {
        max-width: 100%;
        max-height: 100%;
        object-fit: contain;
        transition: transform 0.3s;
    }

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

.cert-info {
    padding: 10px 12px;
    border-top: 1px solid #f0f0f0;
}

.cert-name {
    display: block;
    font-size: 13px;
    color: #333;
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.cert-date {
    display: block;
    font-size: 12px;
    color: #999;
    margin-top: 4px;
}

.about-detail-content .page-body p {
    margin-bottom: 14px;
}

.about-detail-content .page-body img {
    max-width: 100%;
    height: auto;
}

.news-detail-summary {
    background: #f8f9fa;
    border-left: 4px solid #3464BC;
    padding: 16px 20px;
    margin: 16px 0 24px 0;
    font-size: 14px;
    line-height: 1.8;
    color: #555;
    border-radius: 0 4px 4px 0;
}

    .news-detail-summary .summary-label {
        font-weight: bold;
        color: #3464BC;
        margin-right: 4px;
    }