/* 手机端样式调整 */
@media (max-width: 768px) {
    .navbar {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        padding: 15px 50px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        z-index: 1000;
        transition: all 0.4s ease;
        background-color: white;
        box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    }

    .navbar.transparent {
        background-color: #fff;
        padding: 20px;
        box-shadow: none;
    }

    .navbar.scrolled {
        background-color: #fff;
        padding: 20px;
    }

    .nav-area {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
        max-width: 1200px;
        margin: 0 auto;
        padding: 0;
    }

    .logo img {
        width: 100%;
        height: 45px;
    }

    .nav-content {
        display: flex;
        align-items: center;
    }

    .nav-links {
        list-style: none;
        margin-right: 30px;
        display: flex;
    }

    .nav-links li {
        margin-left: 30px;
        position: relative;
    }

    .nav-links a {
        position: relative;
        display: block;
        font-family: 'light', sans-serif;
        text-decoration: none;
        font-size: 16px;
        font-weight: 500;
        line-height: 20px;
        color: #3e3e3e;
        transition: color 0.3s;
        line-height: 45px;
    }

    .navbar.transparent .nav-links a {
        display: flex;
        justify-content: space-between;
        color: #3e3e3e;
    }

    .navbar.scrolled .nav-links a {
        color: #3e3e3e;
    }

    .nav-links a::after {
        content: '';
        position: absolute;
        left: 0;
        bottom: 6px;
        width: 0;
        height: 2px;
        background-color: #008ee7;
        transition: width 0.3s ease;
    }

    .nav-links a:hover::after {
        width: 0;
    }

    .nav-links a:hover {
        color: #008ee7 !important;
    }

    .nav-links a.active {
        color: #008ee7 !important;
    }

    /* 下拉菜单样式 */
    .dropdown {
        display: none;
        position: relative;
        background-color: white;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0);
        z-index: 1000;
        list-style: none;
        margin-left: -15px;
        min-width: 205px;
    }


    /* 二级栏目样式 */
    .sub-dropdown {
        display: none;
        position: relative;
        left: 20px;
        top: 0;
        background-color: white;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0);
        list-style: none;
        min-width: 205px;
    }

    .sub-dropdown a::before,
    .sub-dropdown a::after {
        content: none !important;
        display: none !important;
    }


    .dropdown li {
        position: relative;
        margin: 0;
    }

    .dropdown a {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 10px 25px;
        color: #333 !important;
        position: relative;
        line-height: inherit;
        text-decoration: none;
        transition: background-color 0.3s, color 0.3s;
    }

    /* 一级菜单中有二级菜单的 a 添加箭头 */

    .nav-links>li:has(> .dropdown)>a{
        padding-right: 12px;
    }

    .nav-links>li:has(> .dropdown)>a::after {
        width: inherit;
        content: "\f107";
        font-family: "FontAwesome";
        font-style: normal;
        font-weight: normal;
        font-variant: normal;
        text-rendering: auto;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
        font-size: 20px;
        color: #333;
        margin-left: 8px;
        transition: color 0.3s;
        position: relative;
        bottom: 0;
        height: auto;
        cursor: pointer;
        background: none;
    }

    .dropdown a::after {
        content: "\f107";
        font-family: "FontAwesome";
        font-style: normal;
        font-weight: normal;
        font-variant: normal;
        text-rendering: auto;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
        font-size: 20px;
        color: #333;
        margin-left: 8px;
        transition: color 0.3s;
        position: relative;
        bottom: 0;
        height: auto;
    }

    .dropdown a:hover::after {
        color: #333;
    }

    .dropdown a:hover {
        background-color: #fff;
        color: #333 !important;
        border: 0;
    }

    /* 导航图标样式 */
    .nav-icons {
        display: flex;
        align-items: center;
    }

    .nav-icons a {
        text-decoration: none;
        color: #333;
        margin-left: 25px;
        transition: color 0.3s;
        font-size: 14px;
    }

    .nav-icons p {
        color: #fff;
    }

    /* DE按钮样式 */
    .nav-button {
        background-color: #008ee7;
        padding: 8px 16px;
        border-radius: 8px;
        font-weight: 600;
        font-size: 14px;
        margin-left: 25px;
        cursor: pointer;
        transition: all 0.3s;
        text-decoration: none;
        display: inline-block;
    }

    /* 菜单按钮样式 */
    .menu-button {
        background-color: #008ee7;
        padding: 8px 16px;
        border-radius: 8px;
        color: white !important;
        text-decoration: none;
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
    }

    /* 动画效果 */
    @keyframes fadeIn {
        from {
            opacity: 0;
            transform: translateY(-20px);
        }

        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    @keyframes fadeOut {
        from {
            opacity: 1;
            transform: translateY(0);
        }

        to {
            opacity: 0;
            transform: translateY(-20px);
        }
    }

    /* 导航链接下拉动画 */
    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: white;
        padding: 65px 0 10px;
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        transform: translateY(-20px);
        transition: max-height 0.4s ease, opacity 0.4s ease, transform 0.4s ease;
        animation-duration: 0.4s;
        animation-fill-mode: both;
        display: none;
    }

    .nav-links.show {
        display: block;
        max-height: inherit;
        opacity: 1;
        transform: translateY(0);
        animation-name: fadeIn;
        box-shadow: 0 3px 3px rgb(0 0 0 / 0.1);
    }

    .nav-links:not(.show) {
        animation-name: fadeOut;
    }


    /* 移动端显示菜单按钮 */
    #menuButton {
        display: block;
        cursor: pointer;
    }

    /* 桌面端隐藏菜单按钮 */
    .desktop-only {
        display: none;
    }

    /* 搜索 */
    #searchContainer {
        width: 87%;
        background-color: #fff;
        padding: 0px;
        box-shadow: 0 2px 5px rgba(0, 0, 0, 0);
        position: absolute;
        z-index: 1000;
        top: 48px;
        left: 30px;
        margin: 45px auto 20px;
    }

    .search-box {
        width: 100%;
    }

    #searchInput {
        padding: 15px 13px;
        font-size: 14px;
    }

    #searchBtn {
        width: 48px;
    }

    #searchBtn i {
        font-size: 15px;
    }


    /* banner */
    .banner {
        height: 100%;
        position: relative;
        overflow: hidden;
    }

    .swiper-container {
        height: 100%;
    }

    .swiper-slide {
        background-size: cover;
        background-position: center;
        display: flex;
        align-items: center;
        /* 文字内容左对齐 */
        justify-content: flex-start;
    }

    .content {
        max-width: 1200px;
        padding: 220px 0px;
        color: white;
        text-align: left;
        /* 让内容垂直居中 */
        margin: 0 auto;
    }

    .content h1 {
        font-size: 48px;
        font-family: 'bold', sans-serif;
        text-transform: uppercase;
        margin-bottom: 20px;
    }

    .content h1 span {
        color: #008ee7;
    }

    .content p {
        font-size: 30px;
        line-height: 36px;
        font-family: 'bold', sans-serif;
        max-width: 570px;
        margin-bottom: 30px;
    }

    .banner-box {
        width: 148px;
        height: 54px;
        background-color: #008ee7;
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        /* 鼠标悬浮时显示手型，提升交互感 */
        transition: background-color 0.3s, color 0.3s;
        /* 平滑过渡 */
    }

    .banner-box p {
        font-size: 18px;
        font-family: 'light', sans-serif;
        margin: 0;
        color: #fff;
        transition: color 0.3s;
        /* 文字颜色过渡 */
    }

    /* 鼠标悬浮样式 */
    .banner-box:hover {
        background-color: #fff;
    }

    .banner-box:hover p {
        color: #000;
    }

    /* 视频背景轮播块样式 */
    .swiper-slide.video-slide {
        position: relative;
        overflow: hidden;
    }

    /* 视频全覆盖 */
    .background-video {
        position: absolute;
        top: 50%;
        left: 50%;
        width: 100%;
        height: 100%;
        object-fit: cover;
        transform: translate(-50%, -50%);
        z-index: 0;
        pointer-events: none;
        /* 防止视频阻止鼠标事件 */
    }

    /* 文字内容层置于视频之上 */
    .swiper-slide.video-slide .content {
        position: relative;
        z-index: 1;
        color: #fff;
        /* 文字颜色改为白色，保证对比 */
        text-shadow: 0 0 10px rgba(0, 0, 0, 0.7);
        /* 添加阴影提升可读性 */
    }


    /* 内容主体 */
    .main-content {
        max-width: 1200px;
        margin: 0 auto;
    }

    /* 产品 */
    .our-products {
        width: 100%;
        margin-top: 80px;
    }

    /* 标题居中 */
    .section-title {
        text-align: center;
        font-size: 36px;
        color: #3e3e3e;
        font-family: 'bold', sans-serif;
        margin-bottom: 50px;
    }

    /* 产品分类按钮容器 */
    .product-categories {
        display: flex;
        flex-wrap: wrap;
        /* 换行 */
        justify-content: start;
        gap: 15px;
        margin-bottom: 40px;
    }

    /* 分类按钮样式 */
    .category-btn {
        padding: 10px 20px;
        border: 1px solid #ccc;
        background-color: #fff;
        cursor: pointer;
        border-radius: 4px;
        font-size: 14px;
        font-family: 'light', sans-serif;
        color: #3e3e3e;
        transition: all 0.3s ease;
    }

    .category-btn:hover {
        background-color: #f0f0f0;
    }

    /* 默认激活样式 */
    .category-btn.active {
        background-color: #008ee7;
        color: #fff;
        border-color: #008ee7;
    }

    /* 产品列表 */
    .product-list {
        display: flex;
        flex-wrap: wrap;
        gap: 20px;
        justify-content: start;
    }

    /* 单个产品块 */
    .product-item {
        width: calc(25% - 15px);
        /* 一行4个，间隙20px，减去间隙后宽度 */
        box-sizing: border-box;
        cursor: pointer;
        position: relative;
        background-color: #f5f5f5;
    }

    /* 产品图片容器，方便定位logo和蒙版 */
    .product-image {
        position: relative;
        overflow: hidden;
        border-radius: 8px;
    }

    /* 产品图片，添加过渡效果 */
    .product-image img:first-child {
        width: 100%;
        display: block;
        border-radius: 8px;
        transition: transform 0.3s ease;
    }

    /* 鼠标悬浮时图片放大 */
    .product-item:hover .product-image img:first-child {
        transform: scale(1.1);
    }


    /* 公司logo，左上角 */
    .company-logo {
        position: absolute;
        top: 10px;
        left: 10px;
        width: 40px;
        height: 40px;
        object-fit: contain;
        z-index: 10;
    }

    /* 蒙版，默认隐藏 */
    .overlay {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(255, 255, 255, 0.7);
        opacity: 0;
        transition: opacity 0.3s ease;
        display: flex;
        justify-content: center;
        align-items: center;
        border-radius: 8px;
        z-index: 3;
    }

    /* 鼠标悬浮显示蒙版 */
    .product-image:hover .overlay {
        opacity: 1;
    }

    /* 蒙版内容默认状态，向左偏移且透明 */
    .overlay-content {
        text-align: center;
        transform: translateX(-30px);
        opacity: 0;
        transition: none;
    }

    /* 鼠标悬浮时，蒙版内容播放动画 */
    .product-image:hover .overlay-content {
        animation: slideInFromLeft 0.4s forwards;
    }

    /* 关键帧动画：从左向右滑入 */
    @keyframes slideInFromLeft {
        0% {
            transform: translateX(-30px);
            opacity: 0;
        }

        100% {
            transform: translateX(0);
            opacity: 1;
        }
    }

    .product-name {
        font-size: 14px;
        font-family: 'semibold', sans-serif;
        margin-bottom: 10px;
        color: #333;
    }

    /* 查看详情按钮 */
    .btn-detail {
        padding: 8px 20px;
        background-color: #008ee7;
        border: none;
        color: white;
        border-radius: 4px;
        cursor: pointer;
        font-size: 14px;
        font-family: 'light', sans-serif;
        transition: background-color 0.3s ease;
        border-radius: 25px;
    }

    .btn-detail:hover {
        background-color: #fff;
        color: #000;
        border: 1px solid #000;
    }

    /* 关于我们 */
    .about-us {
        display: flex;
        gap: 40px;
        padding: 0px;
        align-items: center;
        max-width: 1200px;
        margin: 0 auto;
        flex-wrap: wrap;
        margin-top: 80px;
    }

    .about-left {
        flex: 1 1 400px;
        max-width: 600px;
    }

    .small-title {
        font-size: 14px;
        color: #008ee7;
        letter-spacing: 2px;
        margin-bottom: 10px;
    }

    .main-title {
        font-size: 36px;
        line-height: 36px;
        font-family: 'bold', sans-serif;
        margin-bottom: 20px;
        color: #222;
    }

    .main-title span {
        color: #008ee7;
    }

    .intro {
        font-size: 20px;
        line-height: 24px;
        color: #3e3e3e;
        margin-bottom: 20px;
    }

    .content-about {
        font-size: 16px;
        line-height: 24px;
        color: #3e3e3e;
        margin-bottom: 30px;
    }

    .btn-outline {
        padding: 10px 30px;
        font-size: 14px;
        font-family: 'light', sans-serif;
        color: #008ee7;
        background-color: transparent;
        border: 2px solid #008ee7;
        border-radius: 30px;
        cursor: pointer;
        transition: background-color 0.3s ease, color 0.3s ease;
    }

    .btn-outline:hover {
        background-color: #008ee7;
        color: #fff;
    }

    .about-right {
        flex: 1 1 400px;
        max-width: 600px;
        position: relative;
    }

    /* Swiper图片样式 */
    .swiper-container-about {
        width: 100%;
        overflow: hidden;
        border-radius: 10px;
    }

    .swiper-container-about .swiper-slide img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        display: block;
        border-radius: 10px;
    }

    /* 分页器绝对定位，相对于swiper-container */
    .swiper-pagination-about {
        position: absolute;
        bottom: -30px !important;
        /* 负值让分页器在图片下方 */
        left: 50% !important;
        transform: translateX(-50%);
        display: flex;
        gap: 12px;
        z-index: 10;
        justify-content: center;
    }

    /* 分页器样式 */
    .swiper-pagination-bullet-about {
        width: 39px;
        height: 4px;
        background: #d6d6d6;
        opacity: 1;
        cursor: pointer;
        transition: background-color 0.3s ease;
    }

    .swiper-pagination-bullet-active-about {
        background: #008ee7;
    }

    /* 选择我们 */
    .why-choose-us {
        position: relative;
        width: 100%;
        overflow: hidden;
        color: #fff;
        padding: 80px 20px;
        box-sizing: border-box;
        display: flex;
        justify-content: center;
        align-items: center;
        text-align: center;
        margin-top: 80px;
    }

    .why-choose-us .background-video {
        position: absolute;
        top: 50%;
        left: 50%;
        width: 100%;
        height: 100%;
        object-fit: cover;
        transform: translate(-50%, -50%);
        z-index: 0;
        pointer-events: none;
        filter: brightness(0.6);
        /* 视频稍微变暗，提升文字可读性 */
    }

    .content-wrapper {
        position: relative;
        z-index: 1;
        max-width: 1200px;
        width: 100%;
    }

    .choose-section-title {
        font-size: 36px;
        line-height: 36px;
        color: #fff;
        margin-bottom: 20px;
        font-family: 'bold', sans-serif;
    }

    .choose-section-title span {
        color: #008ee7;
    }

    .section-description {
        font-size: 18px;
        line-height: 24px;
        max-width: 1076px;
        margin: 0 auto 50px auto;
        color: #fff;
    }

    .features-row {
        display: flex;
        justify-content: center;
        gap: 60px;
        margin-bottom: 30px;
        flex-wrap: wrap;
    }

    .feature-item {
        display: flex;
        flex-direction: column;
        align-items: center;
        max-width: 315px;
    }

    .feature-item img {
        width: 100%;
        height: auto;
        object-fit: contain;
        border-bottom: 5px solid #008ee7;
    }

    .feature-text {
        margin-top: 12px;
        font-size: 16px;
        max-width: 100%;
        color: #fff;
        text-align: center;
        position: relative;
        padding-bottom: 8px;
    }


    /* 透明底白色线框按钮 */
    .btn-outline-us {
        padding: 12px 36px;
        font-size: 14px;
        font-family: 'light', sans-serif;
        color: #fff;
        background-color: transparent;
        border: 2px solid #fff;
        border-radius: 30px;
        cursor: pointer;
        transition: background-color 0.3s ease, color 0.3s ease;
        display: inline-block;
        margin: 0 auto;
    }

    .btn-outline-us:hover {
        background-color: #008ee7;
        border-color: #008ee7;
        color: #fff;
    }


    /* 应用领域 */
    .application-area {
        max-width: 1200px;
        margin: 80px auto 60px;
        text-align: center;
        color: #333;
    }

    .application-area .section-title {
        font-size: 36px;
        line-height: 36px;
        font-family: 'bold', sans-serif;
        margin-bottom: 40px;
    }

    .application-area .section-title span {
        color: #008ee7;
    }

    .application-area .section-description {
        font-size: 18px;
        color: #3e3e3e;
        max-width: 945px;
        margin: 0 auto 60px auto;
        line-height: 24px;
    }

    .application-row {
        display: flex;
        justify-content: space-between;
        gap: 20px;
        flex-wrap: wrap;
    }

    .application-item {
        flex: 1 1 calc(25% - 15px);
        max-width: calc(25% - 15px);
        box-sizing: border-box;
    }

    .image-wrapper {
        position: relative;
        overflow: hidden;
    }

    .image-wrapper img {
        width: 100%;
        height: auto;
        display: block;
        object-fit: cover;
        vertical-align: middle;
    }

    /* 图片名称文字，居中显示在图片上方 */
    .image-name {
        width: 100%;
        position: absolute;
        bottom: 15px;
        left: 50%;
        transform: translateX(-50%);
        color: #fff;
        font-family: 'semibold', sans-serif;
        font-size: 16px;
        text-shadow: 0 0 6px rgba(0, 0, 0, 0.7);
        z-index: 2;
        pointer-events: none;
    }

    /* 底部黑色渐变阴影，覆盖图片下方约五分之一 */
    .image-wrapper::after {
        content: "";
        position: absolute;
        bottom: 0;
        left: 0;
        width: 100%;
        height: 20%;
        background: linear-gradient(to top, rgba(0, 0, 0, 0.3), transparent);
        pointer-events: none;
        z-index: 1;
    }


    /* 新闻 */
    .news-area {
        width: 100%;
        background-color: #f6f6f6;
    }

    .news-list {
        max-width: 1200px;
        margin: 0px auto;
        padding-top: 60px;
        padding-bottom: 100px;
        text-align: center;
        color: #333;
    }

    .news-list .section-title {
        font-size: 36px;
        line-height: 36px;
        font-family: 'bold', sans-serif;
        margin-bottom: 30px;
    }

    .news-list .section-title span {
        color: #008ee7;
    }

    .news-row {
        display: flex;
        justify-content: space-between;
        gap: 30px;
        flex-wrap: wrap;
    }

    .news-item {
        flex: 1 1 calc(33.333% - 20px);
        max-width: calc(33.333% - 20px);
        box-sizing: border-box;
        text-align: left;
        cursor: pointer;
        display: flex;
        flex-direction: column;
        height: 100%;
    }


    .news-item img {
        width: 100%;
        height: 335px;
        object-fit: cover;
        margin-bottom: 20px;
    }

    .news-time {
        font-size: 14px;
        color: #868686;
    }

    .news-title {
        font-size: 18px;
        font-family: 'semibold', sans-serif;
        color: #3e3e3e;
        margin-bottom: 12px;
        transition: color 0.3s ease;
    }

    /* 鼠标悬浮新闻块时，标题变蓝色 */
    .news-item:hover .news-title {
        color: #008ee7;
    }

    .news-intro {
        font-size: 16px;
        color: #3e3e3e;
        flex-grow: 1;
        margin-bottom: 20px;
        line-height: 1.5;
    }

    /* 透明底蓝色线框按钮 */
    .btn-outline-blue {
        padding: 10px 28px;
        font-size: 14px;
        font-family: 'light', sans-serif;
        color: #008ee7;
        background-color: transparent;
        border: 2px solid #008ee7;
        border-radius: 25px;
        cursor: pointer;
        align-self: flex-start;
        transition: background-color 0.3s ease, color 0.3s ease;
    }

    .news-item:hover .btn-outline-blue {
        background-color: #008ee7;
        color: #fff;
    }



    /* 上面是需要部分pc样式 */


    /* banner */
    .content {
        margin: 0px 20px;
    }

    .content h1 {
        font-size: 36px;
        line-height: 36px;
    }

    .content p {
        font-size: 24px;
        line-height: 30px;
    }

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


    /* 首页内容主体 */

    /* 产品 */
    .our-products {
        margin-top: 40px;
        padding: 0 15px;
    }

    /* 分类按钮居中，按钮变小 */
    .product-categories {
        justify-content: center;
        gap: 10px;
        margin-bottom: 30px;
    }

    .category-btn {
        padding: 8px 14px;
        font-size: 0.9rem;
    }

    /* 产品列表改为两列 */
    .product-list {
        justify-content: center;
        gap: 15px;
    }

    .product-item {
        width: calc(50% - 15px);
        background-color: #f5f5f5;
        margin-bottom: 20px;
    }

    /* 产品名称字体稍微大一点，按钮适当调整 */
    .product-name {
        font-size: 16px;
    }

    .btn-detail {
        padding: 6px 16px;
        font-size: 13px;
        border-radius: 20px;
    }

    .section-title {
        font-size: 28px;
    }


    /* 关于我们 */

    .about-us {
        flex-direction: column;
        gap: 30px;
        padding: 20px 15px;
        max-width: 100%;
        margin-top: 40px;
    }

    .about-left,
    .about-right {
        flex: none;
        max-width: 100%;
        width: 100%;
    }

    .small-title {
        font-size: 12px;
        letter-spacing: 1.5px;
        margin-bottom: 8px;
    }

    .main-title {
        font-size: 28px;
        line-height: 34px;
        margin-bottom: 16px;
    }

    .intro {
        font-size: 16px;
        line-height: 22px;
        margin-bottom: 16px;
    }

    .content-about {
        font-size: 14px;
        line-height: 20px;
        margin-bottom: 24px;
    }

    .btn-outline {
        padding: 8px 24px;
        font-size: 14px;
        border-width: 1.5px;
        border-radius: 25px;
    }

    .about-right {
        position: relative;
    }

    .swiper-container-about {
        height: 250px;
        /* 缩小高度适配手机 */
    }

    /* 分页器位置调整，避免遮挡 */
    .swiper-pagination-about {
        bottom: -25px !important;
        gap: 10px;
    }

    .swiper-pagination-bullet-about {
        width: 28px;
        height: 4px;
    }


    /* 选择我们 */
    .why-choose-us {
        padding: 60px 15px;
        min-height: auto;
    }

    .section-title {
        font-size: 32px;
    }

    .section-description {
        font-size: 16px;
        max-width: 90%;
        margin-bottom: 40px;
    }

    .choose-section-title {
        font-size: 28px;
    }

    .features-row {
        gap: 30px;
    }

    .feature-item {
        max-width: 320px;
    }

    .feature-text {
        font-size: 14px;
    }

    .btn-outline {
        padding: 10px 28px;
        font-size: 14px;
    }


    /* 应用领域 */

    .application-row {
        flex-wrap: wrap;
        max-width: 90%;
        margin: 0 auto;
        gap: 10px;
    }

    .application-area .section-title {
        font-size: 28px;
    }

    .application-area .section-description {
        font-size: 16px;
        max-width: 90%;
    }

    .application-item {
        flex: 1 1 48%;
        max-width: 49%;

    }

    /* 新闻 */
    .news-item {
        flex: 1 1 90%;
        max-width: 90%;
        margin: 0 auto;
    }

    .news-list .section-title {
        font-size: 28px;
    }


    /* 合作品牌部分 */
    .brand-section {
        max-width: 100%;
        margin: 20px auto 40px;
        color: #3e3e3e;
    }

    .brand-section h2 {
        font-size: 28px;
        margin-bottom: 5vw;
    }

    .brand-bg {
        height: auto;
        padding-top: 10vw;
        background-size: contain;
    }

    .brand-list {
        gap: 10px;
    }

    .brand-item {
        width: calc((100% - 5 * 10px) / 3);
        max-width: 120px;
        height: 50px;
        padding: 5px;
    }

    .brand-item img {
        width: 100%;
        height: 100%;
    }

    /* 联系我们部分 */
    .contact-index {
        height: auto;
        padding: 40px 20px;
        background-size: cover;
        background-position: center center;
    }

    .contact-content {
        width: 100%;
        text-align: left;
        color: #3e3e3e;
    }

    .contact-content h2 {
        font-size: 7vw;
        margin-bottom: 10px;
    }

    .contact-content h2 span {
        -webkit-text-stroke: 2px #4c4c4c;
        text-stroke: 2px #4c4c4c;
    }

    .contact-info li {
        font-size: 14px;
        margin-bottom: 10px;
        justify-content: start;
    }

    .contact-info .icon {
        font-size: 30px;
        margin-right: 10px;
        width: auto;
    }

    .contact-info .icon-media {
        margin-top: -30px;
    }

    .icon-envelope {
        font-size: 18px !important;
    }

    .contact-btn {
        font-size: 14px;
        padding: 10px 30px;
        border-radius: 30px;
    }

    /* 页脚 */
    footer {
        padding: 40px 10px 20px;
    }

    .footer-container {
        max-width: 100%;
        padding: 0 10px;
    }

    .footer-top {
        flex-direction: column;
        align-items: center;
        padding-bottom: 20px;
    }

    .footer-left,
    .footer-right {
        max-width: 100%;
        flex: none;
        text-align: left;
        margin-bottom: 30px;
    }

    .footer-logo-title {
        justify-content: center;
        align-items: center;
        margin-bottom: 15px;
    }

    .footer-logo {
        width: 220px;
        margin-right: 10px;
    }

    .footer-title {
        font-size: 6vw;
        line-height: 1.2;
    }

    .footer-description {
        font-size: 14px;
        line-height: 1.4;
        margin-bottom: 20px;
        color: #bbb;
    }

    .footer-social-icons a {
        width: 36px;
        height: 36px;
        font-size: 18px;
        margin-right: 10px;
    }

    .footer-right {
        gap: 20px;
    }

    .footer-column {
        text-align: left;
    }

    .footer-column h4 {
        font-size: 16px;
        margin-bottom: 10px;
    }

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

    .footer-column ul li a {
        font-size: 14px;
    }

    .footer-divider {
        margin: 20px 0;
    }

    .footer-middle {
        padding-bottom: 20px;
    }

    .footer-icons-row {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        justify-content: center;
    }

    .footer-icons-row img {
        flex: 0 0 calc(100% / 7 - 17px);
        height: auto;
        max-height: 35px;
        object-fit: contain;
    }

    .footer-bottom p {
        font-size: 14px;
        color: #999;
        text-align: left;
    }

    /* 关于我们 */

    .about-banner {
        height: 570px;
        background-position: center;
        background-size: auto;
    }

    .about-banner-contact {
        max-width: 90%;
        margin: 0 auto;
    }

    .about-banner-contact h2 {
        font-size: 36px;
        line-height: 36px;
        margin-bottom: 20px;
    }

    .about-banner-contact p {
        width: 100%;
        font-size: 18px;
        line-height: 24px;
    }

    .page-title {
        width: 90%;
        margin: 20px auto 0px;
    }

    .page-title p {
        font-size: 14px;
        margin-right: 5px;
    }

    .page-title p.active {
        margin-left: 5px;
    }

    .card-container {
        display: block;
        width: 90%;
        margin: auto;
    }

    .card {
        margin-top: 20px;
        padding: 20px;
        border-radius: 15px;
    }

    .c-square {
        width: 15px;
        height: 15px;
        margin-right: 10px;
    }

    .title {
        font-size: 16px;
    }

    .description {
        font-size: 14px;
        line-height: 24px;
    }

    .factory-block {
        width: 90%;
        margin: 80px auto;
    }

    .title-bar {
        padding: 8px 10px;
        font-size: 10px;
    }

    .blue-line {
        height: 4px;
        margin-bottom: 30px;
    }

    .image-gallery img {
        width: calc((100% - 7px) / 3);
    }

    .image2-box {
        height: 120px;
    }

    .image2-box p {
        width: 90%;
        font-size: 12px;
    }

    .c-us {
        width: 100%;
        min-height: 100%;
        background-image: url(../img/w-bg.jpg);
        background-repeat: no-repeat;
        background-size: cover;
        background-position: center;
        color: #3e3e3e;
        text-align: center;
        padding: 40px 20px;
        box-sizing: border-box;
    }

    .c-main-title h1 {
        font-size: 36px;
    }

    .c-main-title p {
        font-size: 16px;
        margin-bottom: 20px;
    }

    .center-rectangle {
        width: 290px;
        margin-bottom: 25px;
        border-radius: 8px;
        padding: 15px;
    }

    .center-rectangle h2 {
        font-size: 18px;
        line-height: 24px;
    }

    .center-rectangle p {
        font-size: 14px;
    }

    .three-rectangles {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 20px;

        width: 90%;
        margin: auto;
        margin-bottom: 20px;
    }

    .three-rectangles .item {
        background: #fff;
        width: 290px;
        padding: 20px 15px;
        border-radius: 8px;
    }

    .c-small-title {
        font-size: 12px;
    }

    .three-rectangles .item h3 {
        font-size: 16px;
    }

    .three-rectangles .item p {
        font-size: 12px;
    }

    .bottom-rectangle {
        width: 290px;
        border-radius: 8px;
        padding: 15px;
    }

    .bottom-rectangle .c-small-title {
        font-size: 12px;
    }

    .bottom-rectangle h2 {
        font-size: 16px;
    }



    /* 产品列表 */
    .pro-product-list {
        width: 90%;
        margin: 40px auto;
    }

    .product-logo {
        top: 8px;
        left: 8px;
        width: 30px;
        height: 30px;
    }

    .pro-product-name {
        font-size: 14px;
        margin: 15px 0px;
    }

    .product-btn {
        padding: 10px 15px;
        font-size: 12px;
    }

    .pro-product-item {
        width: calc((100% - 20px) / 2);
        margin-bottom: 20px;
    }

    .pagination {
        gap: 15px;
        margin: 0px auto 80px;
    }

    .page-arrow {
        width: 30px;
        height: 30px;
        font-size: 14px;
    }

    .page-number {
        font-size: 12px;
        padding: 2px 9px;
    }

    /* FAQ */
    .faq-item {
        width: 100%;
        margin-top: 20px;
    }

    .faq-list {
        width: 90%;
        margin: 80px auto;
    }

    .faq-question,
    .faq-answer {
        margin-bottom: 20px;
    }

    .faq-icon {
        font-size: 12px;
        margin-right: 10px;
        margin-top: 5px;
    }

    .question-icon {
        width: 20px;
        height: 20px;
    }

    .faq-question h3 {
        font-size: 22px;
        line-height: 24px;
    }

    .answer-icon {
        width: 20px;
        height: 20px;
    }

    .faq-answer p {
        font-size: 14px;
    }

    /* 联系我们 */
    .con-contact-info {
        flex-direction: column;
        align-items: start;
        width: 90%;
        margin: 40px auto 80px;
    }

    .company-name {
        font-size: 20px;
        line-height: 24px;
    }

    .contact-details {
        gap: 15px;
    }

    .contact-row {
        gap: 15px;
    }

    .icon-box {
        width: 35px;
        height: 35px;
        font-size: 20px;
    }

    .contact-text {
        font-size: 12px;
    }

    .icon-box-mobile {
        font-size: 25px;
    }

    .contact-image img {
        width: 100%;
        max-width: 400px;
    }

    .two-columns {
        flex-direction: column;
        gap: 12px;
    }

    .two-columns .contact-item {
        width: 100%;
        gap: 15px;
    }

    .contact-form-section {
        width: 90%;
        margin: 40px auto 100px;
    }

    .two-columns {
        flex-direction: column;
    }

    .captcha-row {
        flex-direction: column;
        align-items: flex-start;
    }

    .captcha-left {
        width: 55%;
    }

    .captcha-left input {
        max-width: 100%;
    }

    .captcha-desc {
        margin-top: 15px;
        font-size: 12px;
    }

    .form-title {
        font-size: 20px;
        margin-bottom: 25px;
    }

    .contact-form {
        gap: 20px;
    }

    input[type="text"],
    input[type="email"],
    input[type="tel"],
    textarea {
        padding: 15px 12px;
        font-size: 12px;
    }

    .captcha-code {
        font-size: 32px;
        margin-left: 10px;
    }

    .submit-row {
        margin-top: 20px;
    }

    .submit-row button {
        width: 120px;
        font-size: 14px;
        padding: 10px 15px;
    }

}