/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
    overflow-x: hidden;
}

/* 在文件顶部添加移动端菜单打开时的样式 */
body.menu-open {
    overflow: hidden;
    position: fixed;
    width: 100%;
    height: 100%;
}

/* 修复导航栏的一致性问题 */
.navbar {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.nav-links a {
    font-family: inherit;
    transition: color 0.3s ease, transform 0.2s ease;
}

.dropdown-content {
    will-change: opacity, transform;
}

/* 修复Safari下的毛玻璃效果 */
@supports (-webkit-backdrop-filter: blur(10px)) or (backdrop-filter: blur(10px)) {
    .navbar {
        -webkit-backdrop-filter: blur(10px);
        backdrop-filter: blur(10px);
    }
}

/* 修复火狐浏览器下的垂直居中 */
@-moz-document url-prefix() {
    .nav-links li {
        display: flex;
        align-items: center;
    }
}

/* 容器样式 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

/* 通用标题样式 */
.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    color: #1a73e8;
    font-size: 2em;
    margin-bottom: 15px;
    position: relative;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(to right, #1a73e8, #0d47a1);
}

.section-header p {
    color: #666;
    font-size: 1.1em;
}

/* 通用卡片样式 */
.card {
    background: white;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

/* 卡片基础样式 */
.card-base {
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.card-base:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

/* 通用按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 25px;
    border-radius: 5px;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-weight: 500;
}

.btn-primary {
    background: #1a73e8;
    color: white;
}

.btn-primary:hover {
    background: #0d47a1;
    transform: translateY(-2px);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid #1a73e8;
    color: #1a73e8;
}

.btn-outline:hover {
    background-color: #1a73e8;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(26, 115, 232, 0.3);
}

/* 通用图片样式 */
.img-fluid {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
}

/* 通用网格布局 */
.grid {
    display: grid;
    gap: 30px;
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* 优势网格布局 */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    margin: 40px 0;
}

.advantage-card {
    padding: 30px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 100%;
}

.advantage-card .advantage-icon {
    margin-bottom: 20px;
}

.advantage-card h3 {
    color: #1a73e8;
    margin-bottom: 15px;
    font-size: 1.3em;
}

.advantage-card p {
    color: #666;
    line-height: 1.6;
}

@media (max-width: 1024px) {
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .advantages-grid {
        grid-template-columns: 1fr;
    }
}

/* 通用动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fadeIn {
    animation: fadeIn 0.8s ease forwards;
}

/* 通用页面内容区域样式 */
.section {
    padding: 120px 0 80px;
}

/* 页脚样式优化 */
footer {
    background: linear-gradient(135deg, #1a73e8, #0d47a1);
    color: white;
    padding: 60px 0 20px;
    margin-top: 80px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.footer-info h3 {
    color: white;
    margin-bottom: 20px;
    font-size: 1.5em;
}

.footer-contact p {
    margin: 10px 0;
    color: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-contact i {
    color: rgba(255, 255, 255, 0.8);
    width: 20px;
}

.footer-bottom {
    text-align: center;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9em;
}

/* 响应式布局 */
@media (max-width: 1024px) {
    .grid-4 {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .section {
        padding: 80px 0 60px;
    }

    .section-header h2 {
        font-size: 2em;
    }

    .grid-3, .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-2 {
        grid-template-columns: 1fr;
    }

    footer {
        padding: 40px 0 20px;
    }

    .footer-info h3 {
        font-size: 1.3em;
    }

    .footer-info p {
        font-size: 0.9em;
    }

    .footer-contact {
        margin-top: 20px;
    }
    
    .footer-contact p {
        font-size: 0.9em;
    }
}

@media (max-width: 480px) {
    .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }

    .section-header h2 {
        font-size: 1.8em;
    }

    .footer-contact {
        margin-top: 15px;
    }
    
    .footer-contact p {
        font-size: 0.85em;
    }
}

/* 表单样式 */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
    transition: all 0.3s ease;
    background-color: #fff;
    color: #333;
}

.form-control:focus {
    border-color: #1a73e8;
    box-shadow: 0 0 0 2px rgba(26, 115, 232, 0.2);
    outline: none;
}

/* 图标样式 */
.icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: #1a73e8;
    color: white;
    font-size: 18px;
    margin-right: 15px;
}

/* 列表样式 */
.list-unstyled {
    list-style: none;
    padding: 0;
    margin: 0;
}

.list-item {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

/* 背景样式 */
.bg-gradient {
    background: linear-gradient(135deg, #1a73e8, #0d47a1);
    color: white;
}

/* 阴影样式 */
.shadow-sm {
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.shadow-md {
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.shadow-lg {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

/* Hero 部分样式 */
.hero {
    position: relative;
    width: 100%;
    height: 700px; /* 增加高度为700px */
    overflow: hidden;
}

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

.slide {
    position: relative;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center center;
    display: none;
}

.slide.active {
    display: block;
}

.slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4); /* 稍微减少遮罩透明度 */
    z-index: 1;
}

.slide-content {
    position: relative;
    z-index: 2;
    color: white;
    text-align: center;
    padding: 20px;
    max-width: 800px;
    margin: 0 auto;
    padding-top: 180px; /* 调整文字垂直位置 */
}

.slide-content h1 {
    font-size: 2.5em;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.slide-content p {
    font-size: 1.2em;
    margin-bottom: 30px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

/* 轮播按钮位置 */
.slider-button {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 3;
    background: rgba(255, 255, 255, 0.3);
    border: none;
    color: white;
    padding: 15px;
    cursor: pointer;
    font-size: 20px;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s;
}

.slider-button:hover {
    background: rgba(255, 255, 255, 0.5);
}

.slider-button.prev {
    left: 20px;
}

.slider-button.next {
    right: 20px;
}

/* 底部圆点指示器位置 */
.slider-dots {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    gap: 10px;
}

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

.dot.active {
    background: white;
}

/* Hero 部分响应式调整 */
@media (max-width: 768px) {
    .hero {
        height: 500px;
    }

    .slide-content {
        padding-top: 100px;
    }

    .slide-content h1 {
        font-size: 2em;
    }

    .slide-content p {
        font-size: 1em;
    }
}

/* 优势部分样式 */
.advantages-section {
    background-color: #f8f9fa;
}

.advantage-card {
    padding: 40px;
    text-align: center;
    background: white;
    transition: all 0.3s ease;
}

.advantage-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: linear-gradient(135deg, #1a73e8, #0d47a1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.advantage-icon i {
    font-size: 32px;
    color: white;
}

.advantage-content h3 {
    color: #1a73e8;
    font-size: 1.5em;
    margin-bottom: 15px;
}

.divider {
    width: 50px;
    height: 3px;
    background: linear-gradient(to right, #1a73e8, #0d47a1);
    margin: 15px auto;
}

.advantage-content p {
    color: #666;
    line-height: 1.8;
    margin: 0;
}

@media (max-width: 768px) {
    .advantage-card {
        padding: 30px;
    }
    
    .advantage-icon {
        width: 60px;
        height: 60px;
    }
    
    .advantage-icon i {
        font-size: 24px;
    }
}

/* 服务概览部分 */
.services-overview {
    padding: 80px 0;
    background-color: #fff;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.service-item {
    background: white;
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.service-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.service-icon {
    font-size: 40px;
    margin-bottom: 20px;
    color: #1a73e8;
}

.service-item h3 {
    color: #1a73e8;
    font-size: 1.3em;
    margin-bottom: 15px;
}

.service-item p {
    color: #666;
    font-size: 0.95em;
}

@media (max-width: 992px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .services-grid {
        grid-template-columns: 1fr;
    }
}

/* 通用动画类 */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.visible {
    opacity: 1;
    transform: translate(0);
}

/* 延迟类 */
.delay-1 {
    transition-delay: 0.2s;
}

.delay-2 {
    transition-delay: 0.4s;
}

.delay-3 {
    transition-delay: 0.6s;
}

/* CTA 按钮样式 */
.cta-button {
    display: inline-block;
    padding: 12px 30px;
    background: #1a73e8;
    color: white;
    text-decoration: none;
    border-radius: 30px;
    font-weight: 500;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 10px rgba(26, 115, 232, 0.3);
    border: 2px solid #1a73e8;
}

.cta-button:hover {
    background: #0d47a1;
    border-color: #0d47a1;
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(26, 115, 232, 0.4);
}

.cta-button.outline {
    background: transparent;
    color: #1a73e8;
}

.cta-button.outline:hover {
    background: #1a73e8;
    color: white;
}

/* 关于我们页面样式 */
/* 页面头部 */
.about-hero {
    background: url('../images/2.jpg') no-repeat center center;
    background-size: cover;
    color: white;
    text-align: center;
    padding: 150px 0 100px;
    position: relative;
    z-index: 1;
}

.about-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: -1;
}

.about-hero h1 {
    color: #1a73e8;
    font-size: 2.5em;
    margin-bottom: 20px;
}

/* 关于我们部分 */
.about-section {
    padding: 80px 0;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-text {
    padding: 30px;
}

.about-text h2 {
    color: #1a73e8;
    font-size: 2em;
    margin-bottom: 25px;
    position: relative;
}

.about-text h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(to right, #1a73e8, #0d47a1);
}

.about-text p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 20px;
}

.about-image {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.about-image img {
    width: 100%;
    height: auto;
    transition: transform 0.6s ease;
}

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

/* 各部分通用样式 */
.values-section, .company-overview, .advantages-section {
    padding: 80px 0;
}

.values-section, .advantages-section {
    background: #f8f9fa;
}

/* 价值观部分 */
.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.value-card {
    padding: 40px 30px;
    text-align: center;
}

.value-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: linear-gradient(135deg, #1a73e8, #0d47a1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 32px;
}

.value-card h3 {
    color: #1a73e8;
    margin-bottom: 15px;
    font-size: 1.5em;
}

.value-card p {
    color: #666;
    line-height: 1.6;
}

/* 专业资质部分 */
.certificate-section {
    padding: 80px 0;
    background: #fff;
}

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

.certificate-card {
    padding: 40px 30px;
    text-align: center;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.certificate-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: linear-gradient(135deg, #1a73e8, #0d47a1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 32px;
}

.certificate-card h3 {
    color: #1a73e8;
    margin-bottom: 15px;
    font-size: 1.5em;
}

.certificate-card p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 20px;
    flex-grow: 1;
}

.certificate-image {
    margin-bottom: 20px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f8f9fa;
}

.certificate-image img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    transition: transform 0.3s ease;
}

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

.certificate-links {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.certificate-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: #f0f7ff;
    color: #1a73e8;
    padding: 10px 15px;
    border-radius: 5px;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 0.9em;
}

.certificate-link:hover {
    background: #1a73e8;
    color: white;
    transform: translateY(-2px);
}

.certificate-link i {
    font-size: 1.1em;
}

/* 关于页面响应式调整 */
@media (max-width: 992px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .values-grid, .certificates-grid {
        grid-template-columns: repeat(2, 1fr);
}
}

@media (max-width: 576px) {
    .values-grid, .certificates-grid {
        grid-template-columns: 1fr;
}

    .about-hero h1 {
        font-size: 2em;
}

    .about-text h2 {
        font-size: 1.8em;
}

    .value-card, .certificate-card {
        padding: 30px 20px;
    }
} 

/* 发展策略部分样式优化 */
.strategy-item {
    margin-bottom: 30px;
    padding-left: 15px;
    border-left: 3px solid #1a73e8;
    background-color: #f9fbff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.strategy-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.strategy-item h3 {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    color: #1a73e8;
    font-size: 1.3em;
}

.strategy-item h3 i {
    margin-right: 10px;
    background-color: rgba(26, 115, 232, 0.1);
    width: 35px;
    height: 35px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9em;
}

.strategy-item p {
    color: #555;
    line-height: 1.7;
    text-align: left;
}

@media (max-width: 992px) {
    .strategy-content {
        flex-direction: column;
    }
    
    .strategy-text {
        margin-bottom: 30px;
    }
}

@media (max-width: 576px) {
    .strategy-item {
        padding: 15px;
    }
    
    .strategy-item h3 {
        font-size: 1.1em;
    }
}

/* 案例图片展示样式 */
.case-gallery {
    margin: 40px 0;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 10px;
}

.case-gallery-title {
    text-align: center;
    margin-bottom: 20px;
    color: #1a73e8;
    font-size: 1.5em;
}

.case-gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.case-gallery-item {
    position: relative;
    height: 200px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

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

.case-gallery-item:hover {
    transform: translateY(-5px);
}

.case-gallery-item:hover img {
    transform: scale(1.05);
}

.case-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 10px;
    background: linear-gradient(to top, rgba(0,0,0,0.7), rgba(0,0,0,0));
    color: white;
    font-weight: 500;
    font-size: 0.9em;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.case-gallery-item:hover .case-overlay {
    transform: translateY(0);
}

@media (max-width: 992px) {
    .case-gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .case-gallery-grid {
        grid-template-columns: 1fr;
    }
}

/* 危化品优势卡片样式 */
.advantage-card .advantage-header {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.advantage-card .advantage-content {
    color: #666;
}

.compliance-info {
    margin-top: 10px;
}

.certificate-preview, .resource-image {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 15px;
}

.cert-thumbnail, .resource-thumbnail {
    width: 80px;
    height: 60px;
    border-radius: 5px;
    object-fit: cover;
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.cert-thumbnail:hover, .resource-thumbnail:hover {
    transform: scale(1.08);
}

/* 联系我们页面样式 */
.contact-hero {
    background: url('../images/colleagues-giving-fist-bump.jpg') no-repeat center center;
    background-size: cover;
    color: white;
    text-align: center;
    padding: 150px 0 100px;
    position: relative;
    z-index: 1;
}

.contact-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: -1;
}

.contact-hero h1 {
    color: #1a73e8;
    font-size: 2.5em;
    margin-bottom: 20px;
}

.contact-hero p {
    color: white;
    font-size: 1.2em;
    max-width: 700px;
    margin: 0 auto;
}

.contact-section {
    padding: 60px 0;
}

/* 简化后的联系页面样式 */
.contact-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    padding: 40px;
    margin-bottom: 40px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.contact-card h3, .map-section h3 {
    color: #1a73e8;
    font-size: 1.8em;
    margin-bottom: 25px;
    position: relative;
    text-align: center;
}

.contact-card h3::after, .map-section h3::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background: linear-gradient(to right, #1a73e8, #0d47a1);
}

.contact-department-note {
    text-align: center;
    color: #666;
    margin-bottom: 20px;
    font-size: 1.1em;
    padding: 0 20px;
}

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

.contact-item {
    display: flex;
    align-items: flex-start;
    padding: 20px;
    background-color: #f9fbff;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
}

.contact-item i {
    color: #1a73e8;
    font-size: 24px;
    margin-right: 15px;
    margin-top: 5px;
    width: 24px;
    text-align: center;
}

.contact-item h4 {
    font-size: 1.1em;
    margin-bottom: 5px;
    color: #333;
}

.contact-item p {
    color: #666;
    line-height: 1.6;
}

.map-section {
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    padding: 40px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.map-section:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.map-container {
    position: relative;
    height: 450px;
    border-radius: 10px;
    overflow: hidden;
    margin-top: 20px;
}

.map-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* 简化的动画效果 */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible, .delay-1.visible, .delay-2.visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 {
    transition-delay: 0.2s;
}

.delay-2 {
    transition-delay: 0.4s;
}

/* 响应式调整 */
@media (max-width: 992px) {
    .contact-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .contact-hero {
        padding: 100px 0 40px;
    }
    
    .contact-hero h1 {
        font-size: 2em;
    }
    
    .contact-hero p {
        font-size: 1em;
    }
    
    .contact-section {
        padding: 40px 0;
    }
    
    .contact-card, .map-section {
        padding: 20px;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .map-container {
        height: 300px;
    }
} 

/* 数字统计区域 */
.stats-section {
    background: linear-gradient(135deg, rgba(26, 115, 232, 0.85), rgba(13, 71, 161, 0.85)), url('../images/containers-railways-aerial-views.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: white;
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
    margin: 60px 0;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.stats-container {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.stats-section .section-header h2 {
    color: white;
}

.stats-section .section-header p {
    color: white;
    font-size: 1.2rem;
}

.stats-section .section-header h2::after {
    background: white;
}

/* 统一页面头部样式 */
.about-hero p, .contact-hero p {
    color: white;
    font-size: 1.2rem;
    margin-top: 15px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 300;
}

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

.stat-item {
    text-align: center;
    padding: 30px 15px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 15px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.stat-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

/* 数字统计区域样式 */
.stat-number {
    font-size: 3rem;
    font-weight: 700;
    margin: 15px 0;
    color: white;
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

.stat-title {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

.stat-title sup {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    font-size: 0.8em;
    font-weight: 500;
    vertical-align: super;
    margin-left: 2px;
}

.stat-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: rgba(255, 255, 255, 0.8);
}

/* 数字统计响应式样式 */
@media (max-width: 992px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-item {
        padding: 25px 15px;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
}