/* 在CSS文件开头添加平滑滚动 */
html {
    scroll-behavior: smooth;
}

/* 其他现有样式保持不变 */
/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: #777;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1920px;
    margin: 0 auto;
    padding: 0 30px;
}

/* 头部样式 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: none; /* 移除阴影 */
    transition: all 0.3s ease;
}

.header.scrolled {
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: none; /* 移除阴影 */
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 90px;
    transition: height 0.3s ease;
}

.header.scrolled .header-inner {
    height: 70px;
}

.logo {
    flex: 0 0 auto;
}

.logo img {
    height: 30px;
    transition: height 0.3s ease;
}

.header.scrolled .logo img {
    height: 25px;
}

/* 导航菜单 */
.main-nav {
    flex: 1;
    display: flex;
    justify-content: center;
}

.nav-list {
    display: flex;
    gap: 40px;
}

.nav-item {
    position: relative;
    font-weight: 500;
    font-size: 18px;
    transition: color 0.3s ease;
}

.nav-item:hover, .nav-item.active {
    color: #ff8800;
}

.nav-item::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #ff8800;
    transition: width 0.3s ease;
}

.nav-item:hover::after, .nav-item.active::after {
    width: 100%;
}

/* 头部操作区域 */
.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.search-icon {
    position: relative;
    cursor: pointer;
    font-size: 20px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background-color 0.3s ease;
}

.search-icon:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

.search-box {
    position: absolute;
    top: 100%;
    right: 0;
    width: 300px;
    background-color: white;
    border-radius: 4px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    padding: 10px;
    display: none;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.search-icon:hover .search-box {
    display: flex;
    opacity: 1;
    transform: translateY(0);
}

.search-box input {
    flex: 1;
    border: none;
    outline: none;
    padding: 10px;
    border-radius: 4px;
    background-color: #f5f5f5;
}

.search-box button {
    background-color: #ff8800;
    color: white;
    border: none;
    border-radius: 4px;
    padding: 10px 15px;
    margin-left: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.search-box button:hover {
    background-color: #e67a00;
}

/* 移动端菜单按钮 */
.mobile-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 20px;
    cursor: pointer;
}

.mobile-toggle span {
    display: block;
    height: 2px;
    width: 100%;
    background-color: #777;
    transition: all 0.3s ease;
}

/* Banner样式 */
.banner {
    position: relative;
    height: 100vh;
    overflow: hidden;
    margin-top: 90px;
}

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

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

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

.slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.05);
    transition: transform 7s ease;
}

.slide.active img {
    transform: scale(1);
}

.slide-content {
    position: absolute;
    top: 50%;
    left: 10%;
    transform: translateY(-50%);
    color: white;
    max-width: 600px;
    z-index: 2;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 1s ease 0.5s, transform 1s ease 0.5s;
}

.slide.active .slide-content {
    opacity: 1;
    transform: translateY(-50%);
}

.slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.4) 50%, rgba(0,0,0,0.1) 100%);
    z-index: 1;
}

.slide-content h2 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.slide-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    text-shadow: 0 1px 5px rgba(0,0,0,0.3);
}

/* 按钮样式 */
.btn {
    display: inline-block;
    background-color: #ff8800;
    color: white;
    padding: 12px 30px;
    border-radius: 30px;
    font-weight: 500;
    transition: all 0.3s ease;
    border:none;
}

.btn:hover {
    background-color: #e67a00;
    transform: translateY(-3px);
    box-shadow: none; /* 移除阴影 */
}

.btn-outline {
    background-color: transparent;
    border: 2px solid #ff8800;
}

.btn-outline:hover {
    background-color: #ff8800;
    color: white;
}

/* Banner控制 */
.banner-controls {
    position: absolute;
    bottom: 50px;
    left: 0;
    width: 100%;
    z-index: 10;
    display: flex;
    justify-content: center;
    align-items: center;
}

.banner-dots {
    display: flex;
    gap: 10px;
}

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

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

.banner-arrows {
    position: absolute;
    width: 100%;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    padding: 0 30px;
}

.arrow {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    font-size: 18px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.arrow:hover {
    background-color: rgba(255, 255, 255, 0.4);
}

/* 案例展示部分样式 */
.cases-section {
    padding: 50px 0;
    background-color: #f9f9f9;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 100;
    margin-bottom: 0;
    color: #777;
    position: relative;
    display: inline-block;
    text-align: left;
}


.cases-title {
    text-align: center;
    margin-bottom: 50px;
}

/* 案例筛选 */
.cases-filter {
    margin-bottom: 0;
}

.filter-list {
    display: flex;
    justify-content: right;
    flex-wrap: wrap;
    gap: 15px;
    padding: 0;
    margin: 0;
    list-style: none;
}

.filter-item {
    
    color: #777;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
	padding:0 15px;
}

.filter-item::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #ff8800;
    transition: width 0.3s ease;
}



/* 响应式调整 - 修复手机端标题显示问题 */
@media (max-width: 768px) {
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
    }
    
    .section-header h2 {
        font-size: 2rem;
        width: 100%;
        margin-bottom: 10px;
    }
    
    .section-header h2::after {
        bottom: -8px;
        width: 50px;
        height: 2px;
    }
    
    .cases-filter {
        width: 100%;
    }
    
    .filter-list {
        justify-content: flex-start;
        flex-wrap: wrap;
        gap: 15px;
        overflow-x: auto;
        padding-bottom: 10px;
    }
    
    .filter-item {
        padding: 4px 0;
        font-size: 14px;
        margin-right: 15px;
    }
}

@media (max-width: 576px) {
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .filter-list {
        white-space: nowrap;
        display: flex;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding-bottom: 15px;
    }
    
    .filter-item {
        font-size: 13px;
        margin-right: 20px;
    }
    
    .filter-item:last-child {
        margin-right: 0;
    }
}

@media (max-width: 375px) {
    .section-header h2 {
        font-size: 1.6rem;
    }
}

/* 案例网格 */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 50px;
}

.case-item {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.case-item.hidden {
    display: none;
}

.case-item.fade {
    opacity: 0;
    transform: translateY(20px);
}

.case-inner {
    background-color: white;
    overflow: hidden;
    box-shadow: none; /* 移除阴影 */
    transition: transform 0.3s ease;
}

.case-inner:hover {
    transform: translateY(-10px);
    box-shadow: none; /* 移除阴影 */
}

.case-image {
    position: relative;
    overflow: hidden;
    height: 350px;
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.case-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255,136,0,0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.case-inner:hover .case-overlay {
    opacity: 1;
}

.case-link {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ff8800;
    font-size: 18px;
    transform: scale(0);
    transition: transform 0.3s ease 0.1s;
}

.case-inner:hover .case-link {
    transform: scale(1);
}

.case-info {
    padding: 20px;
}

.case-info h3 {
    font-size: 1.2rem;
    margin-bottom: 8px;
    font-weight: 500;
    transition: color 0.3s ease;
}

.case-inner:hover .case-info h3 {
    color: #777;
}

.case-info span {
    font-size: 0.9rem;
    color: #666;
    display: block;
}

.cases-more {
    text-align: center;
    margin-top: 30px;
}

/* 客户栏目样式 */
.clients-section {
    padding: 80px 0;
    background-color: #fff;
}

.clients-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.client-item {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100px;
    padding: 15px;
    transition: all 0.3s ease;
}


.client-item img {
    max-width: 100%;
    max-height: 70px;
    filter: grayscale(100%);
    opacity: 0.5;
    transition: all 0.3s ease;
}



/* 资讯列表样式 */
.news-section {
    padding: 100px 0;
    background-color: #f9f9f9;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 50px;
}

.news-item {
    background-color: #fff;
    overflow: hidden;
    box-shadow: none; /* 移除阴影 */
    transition: transform 0.3s ease;
}

.news-item:hover {
    transform: translateY(-10px);
    box-shadow: none; /* 移除阴影 */
}

.news-image {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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


.news-content {
    padding: 25px;
}

.news-content h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    font-weight: 600;
}

.news-content h3 a {
    color: #777;
    transition: color 0.3s ease;
}

.news-content h3 a:hover {
    color: #ff8800;
}

.news-content p {
    color: #666;
    margin-bottom: 20px;
    line-height: 1.6;
}

.read-more {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-weight: 500;
    color: #ff8800;
    transition: gap 0.3s ease;
}

.read-more:hover {
    gap: 10px;
}

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

/* 响应式调整 */
@media (max-width: 1200px) {
    .nav-list {
        gap: 20px;
    }
    
    .nav-item {
        font-size: 16px;
    }
    
    .cases-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
    
    .clients-grid {
        grid-template-columns: repeat(5, 1fr);
    }
    
    .filter-item {
        padding: 8px 15px;
        font-size: 15px;
    }
}

@media (max-width: 992px) {
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .clients-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
    }
    
    .case-image {
        height: 220px;
    }
    
    .filter-list {
        gap: 10px;
    }
    
    .footer-top {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .mobile-toggle {
        display: flex;
    }
    
    .main-nav {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        height: 0;
        background-color: white;
        overflow: hidden;
        transition: height 0.3s ease;
        box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    }
    
    .main-nav.active {
        height: auto;
    }
    
    .nav-list {
        flex-direction: column;
        gap: 0;
        padding: 20px 0;
    }
    
    .nav-item {
        padding: 12px 20px;
        border-bottom: 1px solid #f0f0f0;
    }
    
    .nav-item:last-child {
        border-bottom: none;
    }
    
    .cases-section {
        padding: 70px 0;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .filter-list {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .filter-item {
        padding: 6px 15px;
        font-size: 14px;
        margin-bottom: 5px;
    }
    
    .clients-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 576px) {
    .cases-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .clients-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .client-item {
        height: 80px;
    }
    
    .case-image {
        height: 200px;
    }
    
    .cases-section {
        padding: 50px 0;
    }
    
    .section-header {
        margin-bottom: 30px;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .filter-item {
        padding: 5px 12px;
        font-size: 13px;
    }
    
    .cases-filter {
        margin-bottom: 25px;
    }
    
    .footer-top {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 375px) {
    .filter-list {
        gap: 8px;
    }
    
    .filter-item {
        padding: 4px 10px;
        font-size: 12px;
    }
    
    .case-info h3 {
        font-size: 1.1rem;
    }
}

/* 修改所有蓝色为橙色 */
.nav-item:hover, .nav-item.active {
    color: #ff8800;
}

.nav-item::after {
    background-color: #ff8800;
}

.search-box button {
    background-color: #ff8800;
}

.search-box button:hover {
    background-color: #e67a00;
}

.section-header h2::after {
    background-color: #ff8800;
}

.filter-item:hover, .filter-item.active {
    color: #555;
}

.case-overlay {
    background-color: rgba(15,15,15,0.8);
}

.case-link {
    color: #ff8800;
}

.case-inner:hover .case-info h3 {
    color: #ff8800;
}

.btn {
    background-color: #ff8800;
}

.btn:hover {
    background-color: #e67a00;
}

.btn-outline {
    border: 2px solid #ff8800;
}

.btn-outline:hover {
    background-color: #ff8800;
}
.btn-outline:hover {
    background-color: #ff8800;
}
	
/* 页脚样式 */
.footer {
    background-color: #222;
    color: #fff;
    padding: 80px 0 0;
}

.footer-top {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-bottom: 60px;
}

.footer-col h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 10px;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background-color: #ff8800;
}

.footer-about p {
    margin-bottom: 20px;
    color: #aaa;
    line-height: 1.7;
}

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

.social-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 16px;
    transition: all 0.3s ease;
}

.social-icon:hover {
    background-color: #ff8800;
    transform: translateY(-3px);
}

.footer-links ul {
    padding: 0;
}

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

.footer-links a {
    color: #aaa;
    transition: all 0.3s ease;
    display: inline-block;
}

.footer-links a:hover {
    color: #ff8800;
    transform: translateX(5px);
}

.footer-contact li {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
    color: #aaa;
}

.footer-contact i {
    color: #ff8800;
    font-size: 18px;
}

.footer-newsletter p {
    color: #aaa;
    margin-bottom: 20px;
}

.newsletter-form {
    display: flex;
    margin-bottom: 20px;
}

.newsletter-form input {
    flex: 1;
    padding: 12px 15px;
    border: none;
    background-color: rgba(255,255,255,0.1);
    color: #fff;
    border-radius: 4px 0 0 4px;
}

.newsletter-form button {
    background-color: #ff8800;
    color: white;
    border: none;
    padding: 0 20px;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.newsletter-form button:hover {
    background-color: #e67a00;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 20px 0;
    text-align: center;
    color: #aaa;
    font-size: 0.9rem;
}
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 20px 0;
    text-align: center;
    color: #aaa;
    font-size: 0.9rem;
}
/* 页脚响应式优化 */
@media (max-width: 992px) {
    .footer-top {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
}

@media (max-width: 576px) {
    .footer-top {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .footer-col {
        padding-bottom: 20px;
    }
    
    .footer-col:not(:last-child) {
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    
    .footer-col h4 {
        margin-bottom: 15px;
    }
    
    .footer-social {
        margin-bottom: 10px;
    }
    
    .footer {
        padding: 50px 0 0;
    }
    
    .footer-bottom {
        padding: 15px 0;
        font-size: 0.8rem;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .newsletter-form input {
        border-radius: 4px;
        margin-bottom: 10px;
    }
    
    .newsletter-form button {
        width: 100%;
        border-radius: 4px;
        padding: 10px;
    }
}

@media (max-width: 375px) {
    .footer-social {
        flex-wrap: wrap;
        gap: 10px;
    }
    
    .social-icon {
        width: 32px;
        height: 32px;
        font-size: 14px;
    }
    
    .footer-contact li {
        gap: 10px;
    }
}
/* 向上滚动按钮 */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: #ff8800;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    box-shadow: none; /* 移除阴影 */
    z-index: 99;
}

.scroll-top:hover {
    background-color: #e67a00;
    transform: translateY(-5px);
    box-shadow: none; /* 移除阴影 */
}

.scroll-top.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}



@media (max-width: 576px) {
    .scroll-top {
        width: 40px;
        height: 40px;
        font-size: 16px;
        bottom: 20px;
        right: 20px;
    }
}

/* 加载更多按钮容器样式 */
.load-more-container {
    text-align: center;
    margin: 40px 0;
}

.load-more-container .btn {
    min-width: 180px;
    padding: 12px 25px;
    font-size: 16px;
}

.loading-spinner {
    display: none;
    margin-top: 15px;
    font-size: 24px;
    color: #777;
}

.loading-spinner.active {
    display: block;
}
/* 页脚响应式优化 */
@media (max-width: 992px) {
    .footer-top {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
}

/* 加载动画样式 */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #ffffff;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.preloader.fade-out {
    opacity: 0;
    visibility: hidden;
}

.loader {
    width: 60px;
    height: 60px;
    border: 3px solid #f5f5f5;
    border-top: 3px solid #ff8800;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@media (max-width: 576px) {
    .footer-top {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    /* 其他样式保持不变 */
}
/* 企业介绍区域样式 */
.company-intro {
    padding: 100px 0;
    background-color: #fff;
}

.intro-content {
    display: flex;
    gap: 80px;
    align-items: center;
}

.intro-slogan {
    flex: 0 0 35%;
    position: relative;
}

.intro-slogan h2 {
    font-size: 2rem;
    font-weight: 100;
    line-height: 1.2;
    color: #777;
    margin-bottom: 30px;
}


.intro-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #777;
    margin-bottom: 20px;
}

.intro-text .btn {
    margin-top: 20px;
}

/* 响应式调整 */
@media (max-width: 992px) {
    .intro-content {
        flex-direction: column;
        gap: 40px;
    }
    
    .intro-slogan, .intro-text {
        flex: 0 0 100%;
    }
    
    .intro-slogan h2 {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    .company-intro {
        padding: 70px 0;
    }
    
    .intro-slogan h2 {
        font-size: 2rem;
    }
    
    .intro-text p {
        font-size: 1rem;
    }
}

@media (max-width: 576px) {
    .company-intro {
        padding: 50px 0;
    }
    
    .intro-slogan h2 {
        font-size: 1.8rem;
    }
}

/* 滚动进度条样式 */
.scroll-progress-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: rgba(0, 0, 0, 0.1);
    z-index: 1000;
}

.scroll-progress {
    height: 100%;
    background: #ff8800;
    width: 0;
    transition: width 0.1s ease;
}

/* 滚动状态下的样式 */
body.is-scrolled .header {
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}