:root {
            --primary-color: #d80031;
            --primary-light: #ff4d6d;
            --primary-dark: #a00024;
            --text-color: #333;
            --text-light: #666;
            --bg-light: #f8f9fa;
            --white: #fff;
            --gray: #e9ecef;
            --dark-gray: #6c757d;
            --border-radius: 4px;
            --transition: all 0.3s ease;
            --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --box-shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.12);
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.6;
            color: var(--text-color);
            overflow-x: hidden;
        }
        
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        
        ul {
            list-style: none;
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        .btn {
            display: inline-block;
            padding: 10px 24px;
            background-color: var(--primary-color);
            color: var(--white);
            border: none;
            border-radius: var(--border-radius);
            cursor: pointer;
            transition: var(--transition);
            font-weight: 500;
        }
        
        .btn:hover {
            background-color: var(--primary-dark);
            transform: translateY(-2px);
        }
        
        .section {
            padding: 80px 0;
        }
        
        .section-title {
            font-size: 2.5rem;
            margin-bottom: 20px;
            text-align: center;
            position: relative;
        }
        
        .section-title::after {
            content: '';
            display: block;
            width: 80px;
            height: 3px;
            background-color: var(--primary-color);
            margin: 15px auto;
        }
        
        .section-subtitle {
            text-align: center;
            color: var(--text-light);
            margin-bottom: 50px;
            font-size: 1.1rem;
        }
        
        /* 导航栏样式 */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background-color: rgba(255, 255, 255, 0.95);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            z-index: 1000;
            transition: var(--transition);
        }
        
        .header.scrolled {
            background-color: rgba(255, 255, 255, 0.98);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        }
        
        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        
        .logo {
            display: flex;
            align-items: center;
        }
        
        .logo-text {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary-color);
            margin-left: 10px;
        }
        
        .nav-menu {
            display: flex;
            align-items: center;
        }
        
        .nav-list {
            display: flex;
            align-items: center;
        }
        
        .nav-item {
            position: relative;
            margin: 0 30px;
        }
        
        .nav-link {
            font-weight: 500;
            padding: 10px 0;
            position: relative;
        }
        
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary-color);
            transition: var(--transition);
        }
        
        .nav-link:hover::after,
        .nav-link.active::after {
            width: 100%;
        }
        
        .dropdown {
            position: absolute;
            top: 100%;
            left: 0;
            width: 600px;
            background-color: var(--white);
            box-shadow: var(--box-shadow);
            border-radius: var(--border-radius);
            padding: 30px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: var(--transition);
            z-index: 100;
        }
        
        .nav-item:hover .dropdown {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        
        .dropdown-title {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 15px;
            color: var(--primary-color);
        }
        
        .dropdown-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        
        .dropdown-item {
            padding: 15px;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        
        .dropdown-item:hover {
            background-color: var(--bg-light);
        }
        
        .dropdown-item-title {
            font-weight: 600;
            margin-bottom: 8px;
        }
        
        .dropdown-item-desc {
            font-size: 0.9rem;
            color: var(--text-light);
        }
        
        .nav-right {
            display: flex;
            align-items: center;
        }
        
        .hotline {
            display: flex;
            align-items: center;
            font-weight: 600;
            color: var(--primary-color);
            margin-right: 15px;
            transition: var(--transition);
        }
        
        .hotline:hover {
            color: var(--primary-dark);
        }
        
        .hotline svg {
            margin-right: 5px;
        }
        
        /* 移动端菜单按钮 */
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            font-size: 1.5rem;
            color: var(--text-color);
        }
        
        /* 搜索弹窗 */
        .search-modal {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.8);
            display: flex;
            justify-content: center;
            align-items: center;
            z-index: 2000;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
        }
        
        .search-modal.active {
            opacity: 1;
            visibility: visible;
        }
        
        .search-container {
            background-color: var(--white);
            width: 90%;
            max-width: 600px;
            border-radius: 8px;
            padding: 40px;
            position: relative;
            transform: scale(0.9);
            transition: var(--transition);
        }
        
        .search-modal.active .search-container {
            transform: scale(1);
        }
        
        .search-close {
            position: absolute;
            top: 15px;
            right: 15px;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--text-light);
            transition: var(--transition);
        }
        
        .search-close:hover {
            color: var(--primary-color);
        }
        
        .search-form {
            margin-bottom: 30px;
        }
        
        .search-input {
            width: 100%;
            padding: 15px;
            border: 2px solid var(--gray);
            border-radius: var(--border-radius);
            font-size: 1.1rem;
            transition: var(--transition);
        }
        
        .search-input:focus {
            border-color: var(--primary-color);
            outline: none;
        }
        
        .hot-searches {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        
        .hot-search-tag {
            background-color: var(--bg-light);
            padding: 8px 15px;
            border-radius: 30px;
            font-size: 0.9rem;
            transition: var(--transition);
        }
        
        .hot-search-tag:hover {
            background-color: var(--primary-color);
            color: var(--white);
        }
        
        /* Banner样式 */
        .banner {
            height: 600px;
            position: relative;
            overflow: hidden;
            margin-top: 70px;
        }
        
        .banner-slides {
            height: 100%;
            position: relative;
        }
        
        .banner-slide {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            opacity: 0;
            transition: opacity 1s ease;
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: center;
        }
        
        .banner-slide.active {
            opacity: 1;
        }
        
        .banner-content {
            max-width: 600px;
            color: var(--white);
            padding: 0 40px;
            transform: translateX(-50px);
            opacity: 0;
            transition: all 0.8s ease;
        }
        
        .banner-slide.active .banner-content {
            transform: translateX(0);
            opacity: 1;
        }
        
        .banner-title {
            font-size: 2.5rem;
            margin-bottom: 15px;
            line-height: 1.2;
        }
        
        .banner-subtitle {
            font-size: 1.2rem;
            margin-bottom: 25px;
            opacity: 0.9;
        }
        
        .banner-controls {
            position: absolute;
            bottom: 30px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            align-items: center;
        }
        
        .banner-dots {
            display: flex;
            margin: 0 20px;
        }
        
        .banner-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.5);
            margin: 0 5px;
            cursor: pointer;
            transition: var(--transition);
        }
        
        .banner-dot.active {
            background-color: var(--white);
            transform: scale(1.2);
        }
        
        .banner-prev,
        .banner-next {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.2);
            display: flex;
            justify-content: center;
            align-items: center;
            cursor: pointer;
            transition: var(--transition);
            color: var(--white);
        }
        
        .banner-prev:hover,
        .banner-next:hover {
            background-color: rgba(255, 255, 255, 0.3);
        }
        
        /* 解决方案模块 */
        .solutions-section {
            background-color: var(--bg-light);
        }
        
        .solution-tabs-container {
            position: relative;
            margin-bottom: 40px;
        }
        
        .solution-tabs {
            display: flex;
            overflow-x: auto;
            scroll-behavior: smooth;
            padding-bottom: 10px;
            scrollbar-width: none; /* Firefox */
            -ms-overflow-style: none; /* IE and Edge */
        }
        
        .solution-tabs::-webkit-scrollbar {
            display: none; /* Chrome, Safari and Opera */
        }
        
        .solution-tab {
            flex: 0 0 auto;
            padding: 12px 24px;
            background-color: var(--white);
            border: 1px solid var(--gray);
            border-radius: 30px;
            cursor: pointer;
            transition: var(--transition);
            font-weight: 500;
            margin-right: 15px;
        }
        
        .solution-tab.active,
        .solution-tab:hover {
            background-color: var(--primary-color);
            color: var(--white);
            border-color: var(--primary-color);
        }
        
        .solution-tab-scroll-btn {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--white);
            display: flex;
            justify-content: center;
            align-items: center;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: var(--box-shadow);
            z-index: 10;
            display: none;
        }
        
        .solution-tab-scroll-btn.left {
            left: -20px;
        }
        
        .solution-tab-scroll-btn.right {
            right: -20px;
        }
        
        .solution-tab-scroll-btn:hover {
            background-color: var(--primary-color);
            color: var(--white);
        }
        
        .solution-content {
            position: relative;
            height: 500px;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--box-shadow);
        }
        
        .solution-bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-size: cover;
            background-position: center;
            transition: opacity 0.8s ease;
            opacity: 0;
        }
        
        .solution-bg.active {
            opacity: 1;
        }
        
        .solution-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(to right, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.3) 100%);
            display: flex;
            align-items: center;
            padding: 0 60px;
        }
        
        .solution-details {
            max-width: 600px;
            color: var(--white);
        }
        
        .solution-details h3 {
            font-size: 2rem;
            margin-bottom: 15px;
        }
        
        .solution-desc {
            font-size: 1.1rem;
            margin-bottom: 25px;
            line-height: 1.6;
        }
        
        .solution-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        
        .solution-tag {
            background-color: rgba(255, 255, 255, 0.2);
            padding: 8px 16px;
            border-radius: 30px;
            font-size: 0.9rem;
            transition: var(--transition);
        }
        
        .solution-tag:hover {
            background-color: var(--primary-color);
            transform: translateY(-2px);
        }
        
        /* 合作客户模块 */
        .clients-section {
            background-color: var(--white);
            overflow: hidden;
        }
        
        .clients-container {
            position: relative;
        }
        
        .clients-row {
            display: flex;
            margin-bottom: 30px;
        }
        
        .clients-row-1 {
            animation: scrollClientsLeft 30s linear infinite;
        }
        
        .clients-row-2 {
            animation: scrollClientsRight 25s linear infinite;
        }
        
        .clients-row-3 {
            animation: scrollClientsLeft 35s linear infinite;
        }
        
        .client-logo {
            flex: 0 0 auto;
            width: 180px;
            height: 80px;
            margin: 0 20px;
            display: flex;
            justify-content: center;
            align-items: center;
            background-color: var(--bg-light);
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        
        .client-logo:hover {
            transform: scale(1.05);
            box-shadow: var(--box-shadow);
        }
        
        @keyframes scrollClientsLeft {
            0% {
                transform: translateX(0);
            }
            100% {
                transform: translateX(calc(-180px * 6));
            }
        }
        
        @keyframes scrollClientsRight {
            0% {
                transform: translateX(calc(-180px * 6));
            }
            100% {
                transform: translateX(0);
            }
        }
        
        /* 关于我们模块 */
        .about-section {
            background-color: var(--bg-light);
        }
        
        .about-container {
            display: flex;
            align-items: center;
            gap: 50px;
        }
        
        .about-stats {
            flex: 1;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        
        .stat-item {
            background-color: var(--white);
            padding: 25px 20px;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            text-align: center;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        
        .stat-item:nth-child(odd) {
            transform: translateY(20px);
        }
        
        .stat-item:nth-child(even) {
            transform: translateY(-20px);
        }
        
        .stat-item:hover {
            transform: translateY(0);
            box-shadow: var(--box-shadow-hover);
        }
        
        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 10px;
        }
        
        .stat-text {
            font-size: 0.9rem;
            color: var(--text-light);
        }
        
        .about-content {
            flex: 1;
        }
        
        .about-title {
            font-size: 2rem;
            margin-bottom: 20px;
            color: var(--primary-color);
        }
        
        .about-text {
            margin-bottom: 25px;
            line-height: 1.8;
        }
        
        .honors-section {
            margin-top: 60px;
        }
        
        .honors-carousel {
            position: relative;
            overflow: hidden;
        }
        
        .honors-track {
            display: flex;
            animation: scrollHonors 20s linear infinite;
        }
        
        .honor-item {
            margin: 0 15px;
            background-color: var(--white);
            border-radius: var(--border-radius);
            display: flex;
            justify-content: center;
            align-items: center;
            box-shadow: var(--box-shadow);
        }
        @keyframes scrollHonors {
            0% {
                transform: translateX(0);
            }
            100% {
                transform: translateX(calc(-200px * 5));
            }
        }
        
        /* 新闻动态模块 */
        .news-section {
            background-color: var(--white);
        }
        
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            margin-bottom: 40px;
        }
        
        .news-item {
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--box-shadow);
            transition: var(--transition);
        }
        
        .news-item:hover {
            transform: translateY(-5px);
            box-shadow: var(--box-shadow-hover);
        }
        
        .news-img {
            height: 200px;
            background-size: cover;
            background-position: center;
            border-radius: var(--border-radius) var(--border-radius) 0 0;
        }
        
        .news-content {
            padding: 20px;
        }
        
        .news-meta {
            display: flex;
            justify-content: space-between;
            margin-bottom: 10px;
            font-size: 0.85rem;
            color: var(--text-light);
        }
        
        .news-category {
            color: var(--primary-color);
            font-weight: 500;
        }
        
        .news-title {
            font-size: 1.2rem;
            margin-bottom: 10px;
            transition: var(--transition);
        }
        
        .news-item:hover .news-title {
            color: var(--primary-color);
        }
        
        .news-excerpt {
            font-size: 0.9rem;
            color: var(--text-light);
        }
        
        .news-more {
            text-align: center;
        }
        
        /* 底部样式 */
        .footer {
            background-color: #2c3e50;
            color: var(--white);
            padding: 60px 0 30px;
        }
        
        .footer-container {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 40px;
        }
        
        .footer-col {
            display: flex;
            flex-direction: column;
        }
        
        .footer-col-wide {
            grid-column: span 1;
        }
        
        .footer-logo {
            margin-bottom: 20px;
        }
        
        .footer-contact {
            margin-bottom: 20px;
        }
        
        .contact-item {
            display: flex;
            align-items: center;
            margin-bottom: 10px;
            font-size: 0.9rem;
        }
        
        .contact-icon {
            margin-right: 10px;
            width: 16px;
            height: 16px;
        }
        
        .social-title {
            margin-bottom: 15px;
            font-weight: 600;
        }
        
        .social-icons {
            display: flex;
            gap: 15px;
        }
        
        .social-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.1);
            display: flex;
            justify-content: center;
            align-items: center;
            transition: var(--transition);
            position: relative;
            cursor: pointer;
        }
        
        .social-icon:hover {
            background-color: var(--primary-color);
            transform: translateY(-3px);
        }
        
        .social-qr {
            position: absolute;
            bottom: 100%;
            left: 50%;
            transform: translateX(-50%);
            width: 120px;
            height: 120px;
            background-color: var(--white);
            border-radius: var(--border-radius);
            padding: 10px;
            box-shadow: var(--box-shadow);
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            margin-bottom: 10px;
        }
        
        .social-icon:hover .social-qr {
            opacity: 1;
            visibility: visible;
        }
        
        .footer-links-title {
            font-weight: 600;
            margin-bottom: 20px;
            font-size: 1.1rem;
        }
        
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        
        .footer-link {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            transition: var(--transition);
        }
        
        .footer-link:hover {
            color: var(--white);
            padding-left: 5px;
        }
        
        .footer-partners {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 30px;
            text-align: center;
        }
        
        .partners-title {
            margin-bottom: 20px;
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.7);
        }
        
        .partners-list {
            display: flex;
            justify-content: center;
            gap: 30px;
        }
        
        .partner-link {
            color: rgba(255, 255, 255, 0.7);
            transition: var(--transition);
        }
        
        .partner-link:hover {
            color: var(--white);
        }
        
        .footer-bottom-links {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 15px;
        }
        
        .footer-bottom-link {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        
        .footer-bottom-link:hover {
            color: var(--white);
        }
        
        .copyright {
            text-align: center;
            padding-top: 30px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.5);
        }
        
        .powered-by {
            text-align: center;
            margin-top: 10px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.5);
        }
        
        .powered-by a {
            color: rgba(255, 255, 255, 0.7);
            transition: var(--transition);
        }
        
        .powered-by a:hover {
            color: var(--white);
        }
        
        /* 左侧悬浮栏 */
        .side-panel {
            position: fixed;
            left: 20px;
            top: 50%;
            transform: translateY(-50%);
            z-index: 100;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        
        .side-item {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: var(--primary-color);
            color: var(--white);
            display: flex;
            justify-content: center;
            align-items: center;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: var(--box-shadow);
            position: relative;
        }
        
        .side-item:hover {
            background-color: var(--primary-dark);
            transform: scale(1.1);
        }
        
        .side-item.back-to-top {
            opacity: 0;
            visibility: hidden;
        }
        
        .side-item.back-to-top.show {
            opacity: 1;
            visibility: visible;
        }
        
        .side-tooltip {
            position: absolute;
            left: 100%;
            top: 50%;
            transform: translateY(-50%);
            background-color: var(--text-color);
            color: var(--white);
            padding: 5px 10px;
            border-radius: 4px;
            font-size: 0.8rem;
            white-space: nowrap;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            margin-left: 10px;
        }
        
        .side-item:hover .side-tooltip {
            opacity: 1;
            visibility: visible;
        }
        
        /* 移动端底部导航栏 */
        .mobile-bottom-nav {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            background-color: var(--white);
            box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
            display: none;
            justify-content: space-around;
            padding: 10px 0;
            z-index: 1000;
        }
        
        .mobile-bottom-nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            font-size: 0.7rem;
            cursor: pointer;
            transition: var(--transition);
        }
        
        .mobile-bottom-nav-item svg {
            margin-bottom: 5px;
        }
        
        .mobile-bottom-nav-item:hover {
            color: var(--primary-color);
        }
        
        /* 合作弹窗 */
        .cooperation-modal {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.8);
            display: flex;
            justify-content: center;
            align-items: center;
            z-index: 2000;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
        }
        
        .cooperation-modal.active {
            opacity: 1;
            visibility: visible;
        }
        
        .cooperation-container {
            background-color: var(--white);
            width: 90%;
            max-width: 500px;
            border-radius: 8px;
            padding: 40px;
            position: relative;
            transform: scale(0.9);
            transition: var(--transition);
        }
        
        .cooperation-modal.active .cooperation-container {
            transform: scale(1);
        }
        
        .cooperation-close {
            position: absolute;
            top: 15px;
            right: 15px;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--text-light);
            transition: var(--transition);
        }
        
        .cooperation-close:hover {
            color: var(--primary-color);
        }
        
        .cooperation-title {
            font-size: 1.5rem;
            margin-bottom: 20px;
            color: var(--primary-color);
            text-align: center;
        }
        
        .cooperation-info {
            margin-bottom: 25px;
        }
        
        .cooperation-item {
            display: flex;
            margin-bottom: 15px;
        }
        
        .cooperation-label {
            font-weight: 600;
            min-width: 100px;
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .footer-container {
                grid-template-columns: 1fr 1fr 1fr;
            }
            
            .about-container {
                flex-direction: column;
            }
            
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: var(--white);
                box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
                padding: 20px;
                flex-direction: column;
            }
            
            .nav-menu.active {
                display: flex;
            }
            
            .nav-list {
                flex-direction: column;
                width: 100%;
            }
            
            .nav-item {
                margin: 0 0 15px 0;
                width: 100%;
            }
            
            .dropdown {
                position: static;
                width: 100%;
                opacity: 1;
                visibility: visible;
                transform: none;
                box-shadow: none;
                padding: 15px 0 0 0;
            }
            
            .dropdown-grid {
                grid-template-columns: 1fr;
            }
            
            .mobile-menu-btn {
                display: block;
            }
            
            .banner {
                height: 500px;
            }
            
            .banner-title {
                font-size: 2rem;
            }
            
            .section-title {
                font-size: 2rem;
            }
            
            .solution-tabs {
                padding-bottom: 15px;
            }
            
            .solution-tab-scroll-btn {
                display: flex;
            }
            
            .solution-overlay {
                padding: 0 30px;
            }
            
            .solution-details h3 {
                font-size: 1.5rem;
            }
            
            .client-logo {
                width: 150px;
            }
            
            .news-grid {
                grid-template-columns: 1fr;
            }
            
            .footer-container {
                grid-template-columns: 1fr;
            }
            
            .side-panel {
                display: none;
            }
            
            .mobile-bottom-nav {
                display: flex;
            }
            
            .footer-bottom-links {
                flex-direction: column;
                gap: 10px;
            }
        }
        
        @media (max-width: 576px) {
            .footer-container {
                grid-template-columns: 1fr;
            }
            
            .stat-item:nth-child(odd),
            .stat-item:nth-child(even) {
                transform: translateY(0);
            }
            
            .solution-overlay {
                padding: 0 20px;
            }
            
            .solution-details h3 {
                font-size: 1.5rem;
            }
            
            .client-logo {
                width: 130px;
                height: 70px;
            }
        }
        
        /* 动画类 */
        .animate-on-scroll {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.8s ease, transform 0.8s ease;
        }
        
        .animate-on-scroll.animated {
            opacity: 1;
            transform: translateY(0);
        }
        
        .animate-left {
            opacity: 0;
            transform: translateX(-50px);
            transition: opacity 0.8s ease, transform 0.8s ease;
        }
        
        .animate-left.animated {
            opacity: 1;
            transform: translateX(0);
        }
        
        .animate-right {
            opacity: 0;
            transform: translateX(50px);
            transition: opacity 0.8s ease, transform 0.8s ease;
        }
        
        .animate-right.animated {
            opacity: 1;
            transform: translateX(0);
        }