/* 基础样式设置 */
:root {
    --primary-color: #0F3460;
    --secondary-color: #E94560;
    --light-color: #F6F6F8;
    --dark-color: #1A1A2E;
    --gray-color: #535C68;
    --light-gray: #E5E7EB;
    --white-color: #FFFFFF;
    --text-color: #333333;
    --transition: all 0.3s ease;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white-color);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

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

.section-header h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--gray-color);
    max-width: 700px;
    margin: 0 auto;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    background-color: var(--primary-color);
    color: var(--white-color);
    text-decoration: none;
    border-radius: 4px;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    text-align: center;
}

.btn:hover {
    background-color: #0A2540;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.read-more {
    display: inline-block;
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
    margin-top: 15px;
    transition: var(--transition);
}

.read-more:hover {
    color: var(--secondary-color);
}

.read-more i {
    margin-left: 5px;
    transition: var(--transition);
}

.read-more:hover i {
    transform: translateX(5px);
}

.bg-light {
    background-color: var(--light-color);
}

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

/* 导航栏样式 */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition);
    //background-color: transparent;
background-color: rgb(17,96,137); /* 新的页脚背景色 */
}

header.scrolled {
    background-color: var(--white-color);
    box-shadow: var(--shadow);
}

#navbar {
    padding: 20px 0;
    transition: var(--transition);
}

#navbar.scrolled {
    padding: 15px 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
}

.logo a {
    color: var(--white-color);
    text-decoration: none;
    transition: var(--transition);
}

header.scrolled .logo a {
    color: var(--primary-color);
}

.desktop-menu ul {
    display: flex;
    list-style: none;
}

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

.desktop-menu ul li a {
    color: var(--white-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

header.scrolled .desktop-menu ul li a {
    color: var(--text-color);
}

.desktop-menu ul li a.active,
.desktop-menu ul li a:hover {
    color: var(--secondary-color);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--white-color);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
}

header.scrolled .mobile-menu-toggle {
    color: var(--primary-color);
}

.mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--white-color);
    box-shadow: var(--shadow);
}

.mobile-menu ul {
    list-style: none;
    padding: 20px 0;
}

.mobile-menu ul li {
    margin: 0;
    text-align: center;
}

.mobile-menu ul li a {
    display: block;
    padding: 12px 0;
    color: var(--text-color);
    text-decoration: none;
    transition: var(--transition);
}

.mobile-menu ul li a.active,
.mobile-menu ul li a:hover {
    background-color: var(--light-color);
    color: var(--secondary-color);
}

/* 轮播图样式 */
.carousel {
    position: relative;
    height: 100vh;
    overflow: hidden;
}

.carousel-container {
    position: relative;
    height: 100%;
}

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

.carousel-item.active {
    opacity: 1;
    z-index: 1;
}

.carousel-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.carousel-caption {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--white-color);
    z-index: 2;
    width: 90%;
    max-width: 800px;
}

.carousel-caption h2 {
    font-size: 3rem;
    margin-bottom: 20px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.carousel-caption p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.carousel-dots {
    position: absolute;
    bottom: 30px;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: center;
    gap: 10px;
    z-index: 10;
}

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

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

/* 核心业务样式 */
.business-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.business-item {
    background-color: var(--white-color);
    padding: 30px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
}

.business-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.business-item i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.business-item h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

/* 公司介绍样式 */
.intro-content {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    align-items: center;
}

.intro-image {
    flex: 1;
    min-width: 300px;
}

.intro-image img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.intro-text {
    flex: 1;
    min-width: 300px;
}

.intro-text h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.intro-text p {
    margin-bottom: 15px;
    font-size: 1.1rem;
}

/* 新闻中心样式 */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.news-item {
    background-color: var(--white-color);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.news-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.news-image {
    height: 200px;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.news-item:hover .news-image img {
    transform: scale(1.05);
}

.news-content {
    padding: 25px;
}

.news-date {
    display: inline-block;
    font-size: 0.9rem;
    color: var(--gray-color);
    margin-bottom: 10px;
}

.news-content h3 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 15px;
    transition: var(--transition);
}

.news-item:hover .news-content h3 {
    color: var(--secondary-color);
}

/* 页脚样式 - 修改背景色为rgb(17,96,137) */
        footer {
            background-color: rgb(17,96,137); /* 新的页脚背景色 */
            color: white;
            padding: 60px 0 30px;
        }

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.footer-logo p {
    color: rgba(255, 255, 255, 0.7);
}

.footer-links h4,
.footer-contact h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-links h4::after,
.footer-contact h4::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 50px;
    height: 2px;
    background-color: var(--secondary-color);
}

.footer-links ul,
.footer-contact ul {
    list-style: none;
}

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

.footer-links ul li a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links ul li a:hover {
    color: var(--secondary-color);
    padding-left: 5px;
}

.footer-contact ul li {
    display: flex;
    align-items: flex-start;
}

.footer-contact ul li i {
    margin-right: 10px;
    color: var(--secondary-color);
    margin-top: 5px;
}

.footer-contact ul li p {
    color: rgba(255, 255, 255, 0.7);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
}

/* 页面标题样式 */
.page-header {
    //background-color: var(--primary-color);
    background-color: rgb(17,96,137); /* 新的页脚背景色 */
    color: var(--white-color);
    padding: 150px 0 80px;
    text-align: center;
}

.page-header h1 {
    font-size: 3rem;
    margin-bottom: 15px;
}

.page-header p {
    font-size: 1.2rem;
    opacity: 0.8;
    max-width: 700px;
    margin: 0 auto;
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: var(--white-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: var(--secondary-color);
    transform: translateY(-5px);
}

/* 中昱介绍页面样式 */
.about-content {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 60px;
    align-items: center;
}

.about-image {
    flex: 1;
    min-width: 300px;
}

.about-image img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.about-text {
    flex: 1;
    min-width: 300px;
}

.about-text h2 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.about-text p {
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.about-section {
    padding: 40px;
    border-radius: 8px;
    margin-bottom: 40px;
}

.about-section h2 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 30px;
    text-align: center;
}

.合作领域 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.合作-item {
    text-align: center;
    padding: 30px;
    background-color: var(--white-color);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.合作-item i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.合作-item h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.value-item {
    text-align: center;
    padding: 30px;
}

.value-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background-color: rgba(15, 52, 96, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.value-icon i {
    font-size: 1.8rem;
    color: var(--primary-color);
}

.value-item h3 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

/* 核心业务页面样式 */
.business-detail {
    margin-bottom: 60px;
    padding: 40px;
    border-radius: 8px;
}

.business-header {
    display: flex;
    align-items: center;
    margin-bottom: 30px;
}

.business-icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background-color: rgba(15, 52, 96, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 20px;
}

.business-icon i {
    font-size: 2rem;
    color: var(--primary-color);
}

.business-header h2 {
    font-size: 2rem;
    color: var(--primary-color);
}

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

.business-image {
    flex: 1;
    min-width: 300px;
}

.business-image img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.business-text {
    flex: 1;
    min-width: 300px;
}

.business-text p {
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.business-text h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.business-text ul {
    margin-bottom: 20px;
    padding-left: 20px;
}

.business-text ul li {
    margin-bottom: 10px;
    list-style-type: disc;
}

.consult-section {
    background-color: var(--primary-color);
    color: var(--white-color);
    padding: 80px 0;
    text-align: center;
}

.consult-section h2 {
    font-size: 2rem;
    margin-bottom: 20px;
}

.consult-section p {
    font-size: 1.1rem;
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.consult-section .btn {
    background-color: var(--white-color);
    color: var(--primary-color);
}

.consult-section .btn:hover {
    background-color: var(--light-color);
}

/* 解决方案页面样式 */
.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.solution-card {
    background-color: var(--white-color);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    padding: 30px;
}

.solution-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.solution-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background-color: rgba(15, 52, 96, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
}

.solution-icon i {
    font-size: 2rem;
    color: var(--primary-color);
}

.solution-card h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 20px;
}

.solution-card p {
    text-align: center;
    margin-bottom: 25px;
}

.solution-features {
    list-style: none;
    margin-bottom: 30px;
}

.solution-features li {
    padding: 10px 0;
    padding-left: 30px;
    position: relative;
}

.solution-features li::before {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

.solution-card .btn {
    display: block;
    width: 100%;
}

.process-flow {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    position: relative;
}

.process-flow::before {
    content: '';
    position: absolute;
    top: 50px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--light-gray);
    z-index: 1;
}

.process-step {
    flex: 1;
    min-width: 150px;
    text-align: center;
    padding: 0 15px;
    position: relative;
    z-index: 2;
}

.step-number {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: var(--white-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    margin: 0 auto 20px;
}

.step-content h3 {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.process-arrow {
    display: none;
    align-items: center;
    justify-content: center;
    padding: 0 10px;
    color: var(--primary-color);
    font-size: 1.5rem;
}

/* 品牌案例页面样式 */
.cases-filter {
    background-color: var(--light-color);
    padding: 20px 0;
}

.filter-tabs {
    display: flex;
    flex-wrap: wrap;
    list-style: none;
    justify-content: center;
    gap: 10px;
}

.filter-tabs li {
    padding: 8px 20px;
    background-color: var(--white-color);
    border-radius: 20px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.filter-tabs li.active,
.filter-tabs li:hover {