/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Microsoft YaHei', sans-serif;
}

:root {
    /* 主色调 */
    --primary-color: #0066cc;
    --secondary-color: #0099ff;
    --text-color: #333;
    --light-color: #f5f5f5;
    --dark-color: #222;
    --white: #fff;
    --gray: #666;
    --light-gray: #999;

    /* 断点定义 */
    --breakpoint-xs: 0;          /* 超小屏 - 手机竖屏 */
    --breakpoint-sm: 576px;      /* 小屏 - 手机横屏 */
    --breakpoint-md: 768px;      /* 中屏 - 平板竖屏 */
    --breakpoint-lg: 992px;      /* 大屏 - 平板横屏/小笔记本 */
    --breakpoint-xl: 1200px;     /* 超大屏 - 桌面显示器 */
    --breakpoint-xxl: 1400px;    /* 特大屏 - 大屏显示器 */
}

/* 基础字体响应式设置 */
html {
    font-size: 16px;
}

body {
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    text-decoration: none;
    color: var(--text-color);
    transition: all 0.3s ease;
}

a:hover {
    color: var(--primary-color);
}

ul {
    list-style: none;
}

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

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 5px;
    font-weight: 500;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
    border: 1px solid var(--primary-color);
}

.btn-primary:hover {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
}

.btn-light {
    background-color: var(--white);
    color: var(--primary-color);
    border: 1px solid var(--white);
}

.btn-light:hover {
    background-color: transparent;
    color: var(--white);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: var(--white);
}

.section-title {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--primary-color);
}

/* 导航栏 */
.header {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo img {
    height: 50px;
}

/* 汉堡菜单样式 */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 24px;
    cursor: pointer;
    z-index: 1001;
}

.mobile-menu-btn span {
    width: 100%;
    height: 3px;
    background-color: var(--text-color);
    border-radius: 3px;
    transition: all 0.3s ease;
}

.nav ul {
    display: flex;
}

.nav ul li {
    margin-left: 30px;
}

.nav ul li a {
    font-size: 16px;
    font-weight: 500;
    padding: 10px 0;
    position: relative;
}

.nav ul li a.active::after,
.nav ul li a:hover::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
}

.header-cta {
    margin-left: 30px;
}

/* 英雄区轮播 */
.hero {
    margin-top: 80px;
    position: relative;
    height: auto;
    min-height: 600px;
    overflow: hidden;
}

.hero-slider {
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease;
}

.slide.active {
    opacity: 1;
}

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

.slide-content {
    position: absolute;
    top: 50%;
    left: 30%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--white);
    z-index: 1;
}

.slide-content h1 {
    font-size: 48px;
    margin-bottom: 20px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.slide-content p {
    font-size: 20px;
    margin-bottom: 30px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.slider-dots {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    z-index: 1;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    margin: 0 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.dot.active {
    background-color: var(--white);
    transform: scale(1.2);
}

/* 核心业务 */
.core-business {
    padding: 100px 0;
    background-color: var(--light-color);
}

.business-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.business-item {
    background-color: var(--white);
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.business-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.business-item i {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.business-item h3 {
    font-size: 24px;
    margin-bottom: 15px;
}

.business-item p {
    color: var(--gray);
}

/* 核心业务详情 */
.business-details {
    padding: 100px 0;
    background-color: var(--light-color);
}

.details-tabs {
    margin-top: 50px;
}

.tab-buttons {
    display: flex;
    justify-content: center;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 12px 30px;
    background-color: var(--white);
    border: 1px solid var(--light-gray);
    border-radius: 5px;
    margin: 0 10px 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 16px;
    font-weight: 500;
}

.tab-btn.active,
.tab-btn:hover {
    background-color: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.tab-content {
    background-color: var(--white);
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.tab-pane {
    display: none;
    padding: 40px;
}

.tab-pane.active {
    display: block;
}

.tab-content-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.tab-text {
    width: 60%;
}

.tab-text h3 {
    font-size: 28px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.tab-text p {
    font-size: 16px;
    color: var(--gray);
    margin-bottom: 20px;
    line-height: 1.8;
}

.tab-text ul {
    margin-bottom: 30px;
}

.tab-text ul li {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
    color: var(--gray);
    font-size: 15px;
}

.tab-text ul li::before {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    color: var(--primary-color);
    margin-right: 10px;
}

.tab-img {
    width: 35%;
    text-align: center;
}

.tab-img i {
    font-size: 180px;
    color: var(--primary-color);
    opacity: 0.2;
}

/* 公司优势 */
.advantages {
    padding: 100px 0;
}

.advantage-list {
    display: flex;
    justify-content: space-between;
}

.advantage-item {
    width: 30%;
    text-align: center;
}

.advantage-icon {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background-color: var(--light-color);
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 20px;
}

.advantage-icon i {
    font-size: 40px;
    color: var(--primary-color);
}

.advantage-item h3 {
    font-size: 24px;
    margin-bottom: 15px;
}

.advantage-item p {
    color: var(--gray);
}

/* 合作伙伴 */
.partners {
    padding: 80px 0;
}

.partners-slider {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 40px;
}

.partner-item {
    width: 150px;
    height: 80px;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: var(--white);
    border-radius: 5px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.partner-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
}

.partner-item img {
    max-width: 80%;
    max-height: 60%;
    filter: grayscale(100%);
    transition: all 0.3s ease;
}

.partner-item:hover img {
    filter: grayscale(0);
}

/* 客户案例 */
.cases {
    padding: 100px 0;
    background-color: var(--light-color);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.case-item {
    background-color: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.case-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.case-img {
    height: 200px;
    overflow: hidden;
}

.case-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 0.3s ease;
}

.case-item:hover .case-img img {
    transform: scale(1.1);
}

.case-content {
    padding: 30px;
}

.case-content h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.case-content p {
    color: var(--gray);
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 20px;
}

/* 新闻动态 */
.news {
    padding: 100px 0;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.news-item {
    display: flex;
    background-color: var(--white);
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: all 0.3s ease;
}

.news-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.news-date {
    width: 100px;
    background-color: var(--primary-color);
    color: var(--white);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 20px 10px;
}

.news-date .day {
    font-size: 32px;
    font-weight: bold;
    line-height: 1;
}

.news-date .month {
    font-size: 14px;
    margin-top: 5px;
}

.news-content {
    flex: 1;
    padding: 20px 25px;
}

.news-content h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--dark-color);
    line-height: 1.5;
}

.news-content p {
    color: var(--gray);
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 15px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-more {
    color: var(--primary-color);
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
}

.news-more i {
    margin-left: 5px;
    transition: all 0.3s ease;
}

.news-more:hover i {
    margin-left: 10px;
}

.news-all {
    text-align: center;
    margin-top: 40px;
}

/* 页面头部 */
.page-header {
    margin-top: 80px;
    padding: 80px 0;
    background-color: var(--primary-color);
    color: var(--white);
    text-align: center;
}

.page-header h1 {
    font-size: 42px;
    margin-bottom: 15px;
}

.page-header p {
    font-size: 18px;
    opacity: 0.9;
}

/* 产品列表 */
.products {
    padding: 100px 0;
}

.product-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.product-item {
    background-color: var(--white);
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.product-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.product-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background-color: var(--light-color);
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 20px;
}

.product-icon i {
    font-size: 36px;
    color: var(--primary-color);
}

.product-item h3 {
    font-size: 22px;
    margin-bottom: 15px;
}

.product-item p {
    color: var(--gray);
}

/* 解决方案 */
.solutions {
    padding: 100px 0;
    background-color: var(--light-color);
}

.solution-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.solution-item {
    background-color: var(--white);
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.solution-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.solution-img {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background-color: var(--light-color);
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 20px;
}

.solution-img i {
    font-size: 40px;
    color: var(--primary-color);
}

.solution-item h3 {
    font-size: 24px;
    margin-bottom: 15px;
}

.solution-item p {
    color: var(--gray);
    margin-bottom: 25px;
}

/* 定制化服务 */
.services {
    padding: 100px 0;
}

.service-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 80px;
}

.service-text {
    width: 60%;
}

.service-text h2 {
    font-size: 32px;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.service-text p {
    font-size: 16px;
    margin-bottom: 20px;
    color: var(--gray);
}

.service-tech {
    margin-bottom: 20px;
}

.service-tech li {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
    color: var(--gray);
}

.service-tech li i {
    color: var(--primary-color);
    margin-right: 10px;
}

.service-img {
    width: 35%;
    text-align: center;
}

.service-img i {
    font-size: 150px;
    color: var(--primary-color);
    opacity: 0.8;
}

.service-process h2 {
    text-align: center;
    font-size: 32px;
    margin-bottom: 50px;
    color: var(--primary-color);
}

.process-steps {
    display: flex;
    justify-content: space-between;
}

.step {
    width: 18%;
    text-align: center;
}

.step-number {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: var(--white);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 20px;
    font-weight: bold;
    margin: 0 auto 20px;
}

.step h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

.step p {
    color: var(--gray);
    font-size: 14px;
}

/* 关于我们 */
.about {
    padding: 100px 0;
}

.about-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 80px;
}

.about-text {
    width: 60%;
}

.about-text h2 {
    font-size: 32px;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.about-text p {
    font-size: 16px;
    margin-bottom: 20px;
    color: var(--gray);
}

.about-img {
    width: 35%;
    text-align: center;
}

.about-img i {
    font-size: 150px;
    color: var(--primary-color);
    opacity: 0.8;
}

.about-values h2 {
    text-align: center;
    font-size: 32px;
    margin-bottom: 50px;
    color: var(--primary-color);
}

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

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

.value-item i {
    font-size: 40px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.value-item h3 {
    font-size: 20px;
    margin-bottom: 10px;
}

.value-item p {
    color: var(--gray);
    font-size: 14px;
}

/* 底部 */
.footer {
    background-color: var(--dark-color);
    color: var(--white);
    padding: 80px 0 30px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: 50px;
}

.footer-logo {
    width: 30%;
}

.footer-logo img {
    height: 50px;
    margin-bottom: 20px;
}

.footer-logo p {
    color: var(--light-gray);
    font-size: 14px;
}

.footer-social {
    margin-top: 20px;
    display: flex;
    gap: 15px;
}

.footer-social a {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--white);
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background-color: var(--primary-color);
}

.footer-links {
    width: 20%;
}

.footer-links h4 {
    font-size: 18px;
    margin-bottom: 20px;
    position: relative;
}

.footer-links h4::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 40px;
    height: 2px;
    background-color: var(--primary-color);
}

.footer-links ul li {
    margin-bottom: 10px;
}

.footer-links ul li a {
    color: var(--light-gray);
    font-size: 14px;
}

.footer-links ul li a:hover {
    color: var(--white);
}

.footer-contact {
    width: 25%;
}

.footer-contact h4 {
    font-size: 18px;
    margin-bottom: 20px;
    position: relative;
}

.footer-contact h4::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 40px;
    height: 2px;
    background-color: var(--primary-color);
}

.footer-contact p {
    color: var(--light-gray);
    font-size: 14px;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}

.footer-contact p i {
    margin-right: 10px;
    color: var(--primary-color);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 30px;
}

.footer-bottom-left p,
.footer-bottom-right a {
    color: var(--light-gray);
    font-size: 10px;
}

.footer-bottom-right a {
    margin-left: 15px;
}

.footer-bottom-right a:hover {
    color: var(--white);
}

/* 响应式适配 */
@media (max-width: 1199.98px) {
    html {
        font-size: 15px;
    }
    .container {
        width: 100%;
    }
    .hero {
        min-height: 500px;
    }
    .slide-content h1 {
        font-size: 36px;
    }
    .slide-content p {
        font-size: 18px;
    }
}

@media (max-width: 991.98px) {
    html {
        font-size: 14px;
    }
    .advantage-list,
    .process-steps {
        flex-direction: column;
    }
    .advantage-item,
    .step {
        width: 100%;
        margin-bottom: 30px;
    }
    .service-content,
    .about-content {
        flex-direction: column;
    }
    .service-text,
    .about-text,
    .service-img,
    .about-img {
        width: 100%;
        margin-bottom: 30px;
    }
    .tab-content-inner {
        flex-direction: column;
    }
    .tab-text, .tab-img {
        width: 100%;
        margin-bottom: 30px;
    }
    .tab-img i {
        font-size: 120px;
    }
    .cases-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .partners-slider {
        gap: 20px;
    }
    .partner-item {
        width: 120px;
        height: 70px;
    }
    .hero {
        min-height: 400px;
    }
    .core-business,
    .advantages,
    .products,
    .solutions,
    .services,
    .about,
    .business-details,
    .partners,
    .cases,
    .news {
        padding: 60px 0;
    }
    .page-header {
        padding: 60px 0;
    }
}

@media (max-width: 767.98px) {
    html {
        font-size: 13px;
    }
    .mobile-menu-btn {
        display: flex;
    }
    .nav {
        position: fixed;
        top: 0;
        right: 0;
        width: 80%;
        height: 100vh;
        background-color: var(--white);
        box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
        transform: translateX(100%);
        transition: transform 0.3s ease;
        z-index: 1000;
        padding-top: 100px;
    }
    .nav.active {
        transform: translateX(0);
    }
    .nav ul {
        flex-direction: column;
        padding: 0 30px;
    }
    .nav ul li {
        margin: 0 0 20px 0;
    }
    .nav ul li a {
        font-size: 18px;
        display: block;
        padding: 10px 0;
    }
    .header-cta {
        margin-left: 0;
    }
    .hero {
        min-height: 350px;
    }
    .slide-content h1 {
        font-size: 28px;
        margin-bottom: 15px;
    }
    .slide-content p {
        font-size: 16px;
        margin-bottom: 20px;
    }
    .slider-dots {
        bottom: 20px;
    }
    .dot {
        width: 10px;
        height: 10px;
        margin: 0 5px;
    }
    .section-title {
        font-size: 24px;
        margin-bottom: 30px;
    }
    .page-header h1 {
        font-size: 28px;
    }
    .page-header p {
        font-size: 16px;
    }
    .business-grid,
    .product-list,
    .solution-grid,
    .values-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    .business-item,
    .product-item,
    .solution-item {
        padding: 20px 15px;
    }
    .business-item h3,
    .product-item h3,
    .solution-item h3 {
        font-size: 20px;
    }
    .business-item i,
    .advantage-icon i,
    .solution-img i {
        font-size: 36px;
    }
    .product-icon i {
        font-size: 32px;
    }
    .tab-pane {
        padding: 20px;
    }
    .tab-text h3 {
        font-size: 24px;
    }
    .cases-grid, .news-grid {
        grid-template-columns: 1fr;
    }
    .news-item {
        flex-direction: column;
    }
    .news-date {
        width: 100%;
        flex-direction: row;
        justify-content: flex-start;
        padding: 15px 20px;
    }
    .news-date .day {
        font-size: 24px;
        margin-right: 10px;
    }
    .footer-content {
        flex-direction: column;
    }
    .footer-logo,
    .footer-links,
    .footer-contact {
        width: 100%;
        margin-bottom: 30px;
    }
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    .footer-bottom-left, .footer-bottom-right {
        margin-bottom: 10px;
    }
    .footer-bottom-right a {
        margin: 0 10px;
    }
}

@media (max-width: 575.98px) {
    html {
        font-size: 12px;
    }
    body {
        font-weight: 400;
    }
    h1, h2, h3, h4, h5, h6 {
        font-weight: 600;
    }
    .hero {
        min-height: 300px;
    }
    .slide-content h1 {
        font-size: 22px;
    }
    .slide-content p {
        font-size: 14px;
    }
    .btn {
        padding: 10px 20px;
        font-size: 14px;
    }
    .core-business,
    .advantages,
    .products,
    .solutions,
    .services,
    .about,
    .business-details,
    .partners,
    .cases,
    .news {
        padding: 30px 0;
    }
    .page-header {
        padding: 40px 0;
    }
    .section-title {
        font-size: 20px;
        margin-bottom: 20px;
    }
    .page-header h1 {
        font-size: 24px;
    }
    .business-grid,
    .product-list,
    .solution-grid,
    .values-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    .business-item h3,
    .product-item h3,
    .solution-item h3 {
        font-size: 18px;
    }
    .business-item p,
    .product-item p,
    .solution-item p {
        font-size: 14px;
    }
    .tab-btn {
        padding: 10px 20px;
        font-size: 14px;
        margin: 0 5px 10px;
    }
    .partners-slider {
        gap: 15px;
    }
    .partner-item {
        width: 100px;
        height: 60px;
    }
    .case-content, .news-content {
        padding: 20px;
    }
    .case-content h3, .news-content h3 {
        font-size: 18px;
    }
    .footer {
        padding: 40px 0 15px;
    }
    .footer-logo img {
        height: 40px;
    }
    .footer-links h4,
    .footer-contact h4 {
        font-size: 16px;
        margin-bottom: 15px;
    }
    .footer-bottom {
        padding-top: 20px;
        font-size: 12px;
    }
}