:root {
    --primary-color: #00a4ff;
    --secondary-color: #2c2c2c;
    --text-color: #333;
    --light-gray: #f5f5f5;
    --white: #ffffff;
}

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

body {
    padding-top: 55px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
}

/* 导航栏样式 */
.main-nav {
    background: #fff;
    padding: 10px 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: transform 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-container .nav-menu {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 5px;
}

.nav-item .icon {
    width: 16px;
    height: 16px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23333'%3E%3Cpath d='M20.01 15.38c-1.23 0-2.42-.2-3.53-.56a.977.977 0 0 0-1.01.24l-1.57 1.97c-2.83-1.35-5.48-3.9-6.89-6.83l1.95-1.66c.27-.28.35-.67.24-1.02-.37-1.11-.56-2.3-.56-3.53 0-.54-.45-.99-.99-.99H4.19C3.65 3 3 3.24 3 3.99 3 13.28 10.73 21 20.01 21c.71 0 .99-.63.99-1.18v-3.45c0-.54-.45-.99-.99-.99z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
}

.nav-item .tel {
    font-size: 16px;
    color: #333;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-item .tel:hover {
    color: #409eff;
}

@media (max-width: 768px) {
    .nav-item#tel {
        display: none;
    }
}

.logo {
    display: flex;
    align-items: center;
}

.logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: inherit;
}

.logo img {
    height: 30px;
    width: auto;
    margin-right: 10px;
}

.logo .info {
    display: flex;
    flex-direction: column;
}

.logo .name {
    font-size: 16px;
    font-weight: bold;
    color: #333;
    margin: 0;
    line-height: 1.2;
}

.logo .flogo {
    font-size: 12px;
    color: #666;
    margin: 2px 0 0;
}

.main-nav ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 30px;
}

.main-nav a {
    text-decoration: none;
    color: #333;
    font-size: 15px;
    transition: color 0.3s;
}

.main-nav a:hover,
.main-nav a.active {
    color: #409eff;
}

/* Hero Section with Slider */
.hero {
    position: relative;
    height: 700px;
    overflow: hidden;
    background: #f5f7fa;
}

.hero-slider {
    position: relative;
    width: 100%;
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}

.slide.active {
    opacity: 1;
}

.slide-inner {
    display: flex;
    height: 100%;
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 20px;
}

.slide-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-right: 60px;
    padding-left: 40px;
}

.slide-image {
    flex: 1.2;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 0;
}

.slide-image img {
    max-width: 100%;
    height: 100%;
    object-fit: contain;
}

.desktop-title {
    font-size: 56px;
    line-height: 1.2;
    margin-bottom: 30px;
    color: #000;
}

.mobile-title {
    display: none;
    font-size: 36px;
    line-height: 1.2;
    margin-bottom: 20px;
    color: #000;
}

.desktop-desc {
    font-size: 20px;
    line-height: 1.6;
    color: #666;
    margin-bottom: 50px;
    max-width: 700px;
}

.mobile-desc {
    display: none;
    font-size: 16px;
    line-height: 1.6;
    color: #666;
    margin-bottom: 30px;
}

.cta-buttons {
    display: flex;
    gap: 20px;
}

.btn {
    padding: 12px 30px;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    text-align: center;
    min-width: 140px;
}

.btn.primary {
    background-color: #006eff;
    color: #fff;
    border: none;
}

.btn.primary:hover {
    background-color: #0056cc;
}

.btn.outline {
    background-color: transparent;
    color: #000;
    border: 1px solid #000;
}

.btn.outline:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

.slider-controls {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    gap: 10px;
}

.slider-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    border: none;
    background: rgba(0, 0, 0, 0.2);
    cursor: pointer;
    padding: 0;
    transition: all 0.3s ease;
}

.slider-dot.active {
    background: #006eff;
    transform: scale(1.2);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero {
        height: auto;
        min-height: 600px;
    }

    .slide-inner {
        flex-direction: column-reverse;
        padding: 40px 20px;
    }

    .slide-content {
        padding-right: 0;
        text-align: center;
        align-items: center;
    }

    .desktop-title {
        display: none;
    }

    .mobile-title {
        display: block;
    }

    .desktop-desc {
        display: none;
    }

    .mobile-desc {
        display: block;
    }

    .slide-image {
        margin-bottom: 30px;
    }

    .slide-image img {
        max-height: 300px;
    }
}

@media (max-width: 768px) {
    .hero {
        min-height: 100vh;
        height: auto;
    }

    .slide {
        position: relative;
        min-height: 100vh;
        display: flex;
        align-items: center;
    }

    .slide-inner {
        flex-direction: column;
        height: auto;
        padding: 60px 15px 20px;
    }

    .slide-content {
        padding: 20px 10px;
        text-align: center;
        order: 2;
    }

    .slide-image {
        order: 1;
        width: 100%;
        padding: 0;
        margin-bottom: 20px;
        height: auto;
        min-height: 200px;
    }

    .slide-image img {
        width: 100%;
        height: auto;
        max-height: 300px;
        object-fit: contain;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
        gap: 10px;
    }

    .btn {
        width: 100%;
        max-width: 280px;
    }

    .mobile-title {
        font-size: 24px;
        margin-bottom: 15px;
        padding: 0 10px;
    }

    .mobile-desc {
        font-size: 14px;
        margin-bottom: 20px;
        padding: 0 15px;
    }

    /* 图片响应式处理 */
    img {
        max-width: 100%;
        height: auto;
    }

    /* 内容区域响应式处理 */
    .content {
        padding: 15px;
        overflow: hidden;
    }

    /* 修复图片遮挡问题 */
    .slide-image {
        position: relative;
        width: 100%;
        height: auto;
        padding: 20px;
    }

    .slide-image img {
        max-width: 100%;
        height: auto;
        position: relative;
        z-index: 1;
    }

    /* 修复其他可能的图片遮挡问题 */
    .feature-card img,
    .logo img,
    .footer img {
        max-width: 100%;
        height: auto;
        position: relative;
        z-index: 1;
    }

    /* 调整移动端间距 */
    .section {
        padding: 30px 0;
    }

    .container {
        padding: 0 15px;
    }

    /* 调整移动端文字大小 */
    h1 {
        font-size: 24px;
        line-height: 1.3;
    }

    h2 {
        font-size: 20px;
        line-height: 1.3;
    }

    h3 {
        font-size: 18px;
        line-height: 1.3;
    }

    p {
        font-size: 14px;
        line-height: 1.5;
    }
}

/* 针对更小屏幕的优化 */
@media (max-width: 480px) {
    .nav-container {
        padding: 0 5px;
    }

    .logo img {
        height: 20px;
    }

    .content {
        padding: 10px;
    }

    /* 更小屏幕的按钮样式 */
    .btn {
        padding: 8px 16px;
        font-size: 14px;
    }

    /* 更小屏幕的图片处理 */
    .slide-image {
        padding: 10px;
    }

    .hero {
        min-height: calc(100vh - 45px);
    }

    .slide {
        min-height: calc(100vh - 45px);
    }

    .slide-inner {
        padding: 50px 10px 20px;
    }

    .slide-image img {
        max-height: 200px;
    }

    .mobile-title {
        font-size: 20px;
    }

    .mobile-desc {
        font-size: 14px;
    }
}

/* 简介部分样式 */
.intro {
    padding: 4rem 5%;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

/* 功能特点样式 */
.features {
    padding: 4rem 5%;
    background: var(--light-gray);
}

.features h2 {
    text-align: center;
    margin-bottom: 3rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* 统计数据样式 */
.stats {
    background-color: #f8f9fa;
    padding: 80px 0;
    width: 100%;
}

.stats .content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-around;
    align-items: center;
}

.stats .item {
    text-align: center;
    padding: 0 20px;
}

.stats .item_title {
    font-size: 48px;
    font-weight: 300;
    color: #333;
    margin-bottom: 10px;
    font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
}

.stats .item_title .count {
    font-size: inherit;
    font-weight: inherit;
}

.stats .item_desc {
    font-size: 16px;
    color: #666;
    margin-top: 8px;
}

@media screen and (max-width: 768px) {
    .stats {
        padding: 40px 0;
    }
    
    .stats .content {
        flex-direction: column;
        gap: 30px;
    }
    
    .stats .item_title {
        font-size: 36px;
    }
    
    .stats .item_desc {
        font-size: 14px;
    }
}

/* 新的页脚样式 */
.footer {
    background: #fff;
    padding-bottom: 20px;
}

.footer .friendlink {
    border-bottom: 1px solid #eee;
    padding: 15px 0;
}

.footer .content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.footer .friendlink a {
    color: #666;
    margin: 0 10px;
    text-decoration: none;
}

.footer .footMenu {
    padding: 40px 0;
}

.footer .logo {
    display: flex;
    align-items: flex-start;
}

.footer .logo img {
    height: 40px;
    margin-right: 10px;
}

.footer .logo label {
    font-size: 14px;
    color: #333;
    line-height: 1.5;
}

.footer .menuItem {
    position: relative;
}

.footer .menuItem p {
    font-size: 16px;
    color: #333;
    margin-bottom: 20px;
    font-weight: 500;
}

.footer .menuItem ul {
    list-style: none;
    padding: 0;
}

.footer .menuItem ul li {
    margin-bottom: 12px;
}

.footer .menuItem ul li a {
    color: #666;
    text-decoration: none;
    font-size: 14px;
}

.footer .menuItem ul li a:hover {
    color: #006eff;
}

.footer .image_ba {
    margin-top: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

.footer .image_ba img {
    width: 20px;
    height: 20px;
    display: inline-block;
    vertical-align: middle;
    object-fit: contain;
}

.footer .copyright {
    border-top: 1px solid #eee;
    padding-top: 20px;
}

.footer .copyright .content {
    text-align: center;
}

.footer .copyright p {
    color: #999;
    font-size: 12px;
    line-height: 2;
    margin: 0;
}

@media screen and (max-width: 768px) {
    .hide-xs {
        display: none;
    }
    
    .layui-hide-sm {
        display: block;
    }
    
    .footer .menuItem {
        padding: 15px 0;
        border-bottom: 1px solid #eee;
    }
    
    .footer .menuItem p {
        margin-bottom: 0;
    }
    
    .footer .copyright span {
        display: block;
    }
    
    .m_pt5 {
        padding-top: 5px;
    }
    
    .m_pb5 {
        padding-bottom: 5px;
    }
    
    .m_bn {
        border: none;
    }

    .footer .image_ba {
        margin-top: 5px;
    }

    .footer .image_ba img {
        width: 16px;
        height: 16px;
    }

    .footer .copyright p {
        font-size: 12px;
        line-height: 1.8;
    }

    .footer .copyright span {
        display: block;
        margin: 5px 0;
    }
}

@media screen and (min-width: 769px) {
    .layui-hide-sm {
        display: none;
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    body {
        padding-top: 45px;
    }

    .nav-container {
        padding: 0 10px;
    }

    .logo .info {
        display: block !important; /* 确保在移动端显示 */
    }

    .logo .name {
        font-size: 14px;
    }

    .logo .flogo {
        font-size: 12px;
        display: block !important;
    }

    .nav-container .nav-menu {
        position: fixed;
        top: 45px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 10px 0;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        display: none;
        max-height: calc(100vh - 45px);
        overflow-y: auto;
    }

    .nav-container .nav-menu.active {
        display: flex;
    }

    .nav-container ul {
        flex-direction: column;
        width: 100%;
        gap: 0;
    }

    .nav-container ul li {
        width: 100%;
        text-align: center;
        padding: 10px 0;
        border-bottom: 1px solid #eee;
    }

    .nav-container ul li:last-child {
        border-bottom: none;
    }

    .nav-container ul li a {
        justify-content: center;
        padding: 10px 0;
    }

    .logo {
        flex: 1;
    }

    .logo img {
        height: 24px;
    }

    /* 添加汉堡菜单按钮 */
    .menu-toggle {
        display: block;
        width: 24px;
        height: 24px;
        position: relative;
        cursor: pointer;
        padding: 0;
        border: none;
        background: none;
        z-index: 1001;
    }

    .menu-toggle span {
        display: block;
        width: 100%;
        height: 2px;
        background: #333;
        position: absolute;
        left: 0;
        transition: all 0.3s;
    }

    .menu-toggle span:first-child {
        top: 2px;
    }

    .menu-toggle span:nth-child(2) {
        top: 11px;
    }

    .menu-toggle span:last-child {
        bottom: 2px;
    }

    .menu-toggle.active span:first-child {
        transform: rotate(45deg);
        top: 11px;
    }

    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .menu-toggle.active span:last-child {
        transform: rotate(-45deg);
        bottom: 11px;
    }
}

/* 功能特点新样式 */
.features .content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.features .title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 3rem;
}

.features .tab {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 3rem;
}

.features .tab h3 {
    cursor: pointer;
    padding: 0.5rem 1rem;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
}

.features .tab h3.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.features .item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.features .item.layui-hide {
    display: none;
}

.features .left {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.features .item_icon img {
    width: 60px;
    height: auto;
}

.features .item_title {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--text-color);
}

.features .item_desc {
    color: #666;
    line-height: 1.8;
}

.features .more {
    display: inline-block;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.features .right img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.features .tab_pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
}

.features .tab_pagination i {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #ddd;
    cursor: pointer;
}

.features .tab_pagination i.active {
    background: var(--primary-color);
}

/* 响应式设计补充 */
@media (max-width: 768px) {
    .features .item {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .features .tab {
        flex-direction: column;
        align-items: center;
    }

    .features .tab h3 {
        text-align: center;
    }

    .features .right {
        order: -1;
    }
}

/* 视频对比部分样式 */
.home-video-section {
    padding: 80px 0;
    background: #f5f7fa;
}

.mt-section-inner {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 20px;
}

.mt-section-hd {
    text-align: center;
    margin-bottom: 60px;
}

.mt-section-title {
    font-size: 36px;
    line-height: 1.4;
    color: #000;
}

.text-blue {
    color: #006eff;
}

.mt-video-compare {
    display: flex;
    gap: 20px;
    height: 600px;
}

.mt-video-compare__part {
    flex: 1;
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
}

.mt-video-compare__part.inactive {
    flex: 0.7;
}

.mt-video-compare__part .inner {
    position: relative;
    width: 100%;
    height: 100%;
}

.mt-video-compare__part video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.mt-video-compare__part .cover {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 1;
    transition: opacity 0.3s ease;
}

.mt-video-compare__part.active .cover {
    opacity: 0;
}

.mt-video-compare__part .cnt {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 40px;
    color: #fff;
    background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0) 100%);
}

.cnt-main {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.mt-video-compare__icon {
    width: 40px;
    height: 40px;
    margin-right: 15px;
}

.mt-video-compare__tit {
    font-size: 24px;
    font-weight: 500;
}

.mt-video-compare__desc {
    font-size: 16px;
    margin-bottom: 20px;
    opacity: 0.8;
}

.mt-video-compare__desc .mobile {
    display: none;
}

.more {
    display: inline-flex;
    align-items: center;
    color: #fff;
    font-size: 14px;
}

.more-text {
    border-bottom: 1px solid rgba(255,255,255,0.3);
    padding-bottom: 2px;
    transition: border-color 0.3s ease;
}

.more:hover .more-text {
    border-color: #fff;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .mt-video-compare {
        flex-direction: column;
        height: auto;
    }

    .mt-video-compare__part {
        height: 400px;
    }

    .mt-video-compare__part.inactive {
        flex: 1;
    }

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

    .mt-video-compare__desc .pc {
        display: none;
    }

    .mt-video-compare__desc .mobile {
        display: block;
    }
}

@media (max-width: 768px) {
    .home-video-section {
        padding: 40px 0;
    }

    .mt-video-compare__part {
        height: 300px;
    }

    .mt-video-compare__part .cnt {
        padding: 20px;
    }

    .mt-video-compare__tit {
        font-size: 20px;
    }

    .mt-video-compare__icon {
        width: 30px;
        height: 30px;
        margin-right: 10px;
    }
}

/* 客户展示模块 */
.mt160 {
    margin-top: 160px;
}

.m_mt100r {
    position: relative;
}

.module8 {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.module8 .title {
    font-size: 36px;
    color: #333;
    text-align: center;
    margin-bottom: 60px;
}

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

.liMarquee {
    width: 100%;
    height: 169px;
    margin-bottom: 20px;
    overflow: hidden;
}

.liMarquee .str_move {
    white-space: nowrap;
    animation: marquee 50s linear infinite;
}

.liMarquee img {
    height: 169px;
    width: auto;
}

@keyframes marquee {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-100%);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .mt160 {
        margin-top: 60px;
    }

    .module8 .title {
        font-size: 28px;
        margin-bottom: 40px;
    }

    .liMarquee {
        height: 120px;
    }

    .liMarquee img {
        height: 120px;
    }
}

/* 数字统计模块 */
.module9 {
    background-color: #f7f8fa;
    width: 100%;
    padding: 100px 0;
}

.module9 .content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-around;
    padding: 0 20px;
}

.module9 .item {
    text-align: center;
}

.module9 .item_title {
    font-size: 56px;
    line-height: 1.2;
    color: #000000;
    font-weight: 400;
    margin-bottom: 20px;
    font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
}

.module9 .item_title .count {
    display: inline-block;
    font-size: inherit;
    font-weight: inherit;
}

.module9 .item_desc {
    font-size: 16px;
    color: #000000;
    line-height: 1.5;
}

.mt160 {
    margin-top: 160px;
}

.m_mt100r {
    position: relative;
}

@media screen and (max-width: 768px) {
    .module9 {
        padding: 50px 0;
    }
    
    .module9 .content {
        flex-direction: column;
        gap: 30px;
    }
    
    .module9 .item_title {
        font-size: 36px;
    }
    
    .module9 .item_desc {
        font-size: 14px;
    }

    .mt160 {
        margin-top: 60px;
    }
}

/* 页脚菜单样式 */
.footMenu {
    padding: 40px 0;
}

.footMenu .logo {
    display: block;
}

.footMenu .logo div {
    margin-bottom: 10px;
}

.footMenu .logo img {
    height: 40px;
    width: auto;
}

.footMenu .logo label {
    font-size: 14px;
    color: #333;
    line-height: 1.8;
}

.footMenu .menuItem {
    position: relative;
}

.footMenu .menuItem p {
    font-size: 16px;
    color: #333;
    margin-bottom: 20px;
    font-weight: 500;
}

.footMenu .menuItem .jia {
    display: none;
    width: 20px;
    height: 20px;
    position: absolute;
    right: 0;
    top: 0;
}

.footMenu .menuItem ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footMenu .menuItem ul li {
    margin-bottom: 15px;
}

.footMenu .menuItem ul li a {
    color: #666;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.footMenu .menuItem ul li a:hover {
    color: #006eff;
}

/* 响应式布局类 */
.layui-row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -15px;
}

.layui-col-lg3 {
    padding: 0 15px;
    width: 25%;
}

@media screen and (max-width: 768px) {
    .layui-col-xs12 {
        width: 100%;
    }
    
    .layui-hide-sm {
        display: block !important;
    }
    
    .footMenu .menuItem {
        border-bottom: 1px solid #eee;
        padding: 15px 0;
    }
    
    .footMenu .menuItem p {
        margin-bottom: 0;
        position: relative;
    }
    
    .footMenu .menuItem .jia {
        display: block;
    }
    
    .m_pt5 {
        padding-top: 5px;
    }
    
    .m_pb5 {
        padding-bottom: 5px;
    }
    
    .m_bn {
        border: none;
    }
}

/* 通用响应式布局调整 */
@media (max-width: 768px) {
    .content {
        padding: 0 15px;
    }

    .module9 .content {
        flex-direction: column;
        gap: 30px;
    }

    .module9 .item_title {
        font-size: 36px;
    }

    .module9 {
        padding: 50px 0;
    }

    .mt160 {
        margin-top: 60px;
    }

    .footer .content {
        padding: 15px;
    }

    .footMenu {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .menuItem {
        text-align: center;
    }

    .menuItem ul {
        display: none;
    }

    .menuItem.active ul {
        display: block;
    }

    .copyright {
        text-align: center;
    }

    .copyright .links_ba {
        flex-direction: column;
        gap: 10px;
    }
}

/* 小屏幕设备额外优化 */
@media (max-width: 480px) {
    .module9 .item_title {
        font-size: 28px;
    }

    .btn {
        width: 100%;
        text-align: center;
        margin: 5px 0;
    }

    .hero .cta-buttons {
        flex-direction: column;
        gap: 10px;
    }

    .hero .btn {
        width: 100%;
        max-width: 300px;
    }
}

.nav-menu ul {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-menu ul li a {
    display: flex;
    align-items: center;
    color: #333;
    text-decoration: none;
    font-size: 16px;
    position: relative;
    padding: 20px 0;
}

.nav-menu ul li a::before {
    content: '';
    display: inline-block;
    width: 24px;
    height: 24px;
    margin-right: 8px;
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
}

.nav-menu ul li a[href="index.html"]::before {
    background-image: url('../img/nav/home.png');
}

.nav-menu ul li a[href="chanpin.html"]::before {
    background-image: url('../img/nav/product.png');
}

.nav-menu ul li a[href="download.html"]::before {
    background-image: url('../img/nav/download.png');
}

.nav-menu ul li a[href="help.html"]::before {
    background-image: url('../img/nav/help.png');
}

.nav-menu ul li a[href="cases.html"]::before {
    background-image: url('../img/nav/cases.png');
}

.nav-menu ul li a[href="buy.html"]::before {
    background-image: url('../img/nav/buy.png');
}

.nav-menu ul li a.active {
    color: #2B81FF;
}

.nav-menu ul li a.active::before {
    filter: brightness(0) saturate(100%) invert(40%) sepia(89%) saturate(1815%) hue-rotate(203deg) brightness(103%) contrast(107%);
}

/* 添加汉堡菜单按钮默认样式 */
.menu-toggle {
    display: none; /* 默认隐藏 */
}

/* 移动端样式 */
@media (max-width: 768px) {
    body {
        padding-top: 45px;
    }

    .nav-container {
        padding: 0 10px;
    }

    /* 在移动端显示汉堡菜单按钮 */
    .menu-toggle {
        display: block;
        width: 24px;
        height: 24px;
        position: relative;
        cursor: pointer;
        padding: 0;
        border: none;
        background: none;
        z-index: 1001;
    }

    .menu-toggle span {
        display: block;
        width: 100%;
        height: 2px;
        background: #333;
        position: absolute;
        left: 0;
        transition: all 0.3s;
    }

    .menu-toggle span:first-child {
        top: 2px;
    }

    .menu-toggle span:nth-child(2) {
        top: 11px;
    }

    .menu-toggle span:last-child {
        bottom: 2px;
    }

    .menu-toggle.active span:first-child {
        transform: rotate(45deg);
        top: 11px;
    }

    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .menu-toggle.active span:last-child {
        transform: rotate(-45deg);
        bottom: 11px;
    }
}