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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 24px;
    font-weight: 700;
    color: #2c5aa0;
}

.nav-logo i {
    margin-right: 10px;
    font-size: 28px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu > li {
    position: relative;
}

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    display: flex;
    align-items: center;
    gap: 5px;
}

.nav-link:hover,
.nav-link.active {
    color: #2c5aa0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #2c5aa0;
    transition: width 0.3s ease;
}

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

/* 下拉菜单样式 */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    min-width: 220px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    border-radius: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    list-style: none;
    padding: 10px 0;
    margin: 5px 0 0 0;
    border: 1px solid #e9ecef;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li {
    margin: 0;
}

.dropdown-menu a {
    display: block;
    padding: 12px 20px;
    color: #333;
    text-decoration: none;
    transition: all 0.3s ease;
    border-radius: 4px;
    margin: 0 8px;
    font-weight: 500;
}

.dropdown-menu a:hover {
    background: rgba(44, 90, 160, 0.1);
    color: #2c5aa0;
    transform: translateX(5px);
}

.dropdown-toggle i {
    font-size: 0.8em;
    transition: transform 0.3s ease;
}

.dropdown:hover .dropdown-toggle i {
    transform: rotate(180deg);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* 主视觉区样式 */
.hero {
    position: relative;
    height: 100vh;
    overflow: hidden;
}

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

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

.slide.active {
    opacity: 1;
}

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

.slide-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: white;
    z-index: 2;
    max-width: 800px;
    padding: 0 20px;
}

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

.slide-content h1 {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.highlight {
    color: #4CAF50;
    text-shadow: 0 0 20px rgba(76, 175, 80, 0.5);
}

.slide-content p {
    font-size: 1.3rem;
    margin-bottom: 30px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 15px 30px;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 16px;
}

.btn-primary {
    background: linear-gradient(135deg, #2c5aa0, #4CAF50);
    color: white;
    box-shadow: 0 4px 15px rgba(44, 90, 160, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(44, 90, 160, 0.4);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: white;
    color: #2c5aa0;
    transform: translateY(-2px);
}

.hero-nav {
    position: absolute;
    top: 50%;
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 30px;
    z-index: 3;
}

.hero-nav button {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.hero-nav button:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.hero-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 3;
}

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

.indicator.active {
    background: white;
    transform: scale(1.2);
}

/* 通用区块样式 */
section {
    padding: 80px 0;
}

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

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2c5aa0;
    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(135deg, #2c5aa0, #4CAF50);
}

.section-header p {
    font-size: 1.1rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

/* 关于我们样式 */
.about {
    background: #f8f9fa;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.company-info h3 {
    font-size: 1.8rem;
    color: #2c5aa0;
    margin-bottom: 20px;
}

.company-info p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #555;
    margin-bottom: 30px;
}

.stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.stat-item {
    text-align: center;
    padding: 20px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 900;
    color: #2c5aa0;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.9rem;
    color: #666;
}

.image-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.grid-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 10px;
    transition: transform 0.3s ease;
}

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

/* 产品服务样式 */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.product-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.product-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(44, 90, 160, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.product-card:hover .product-overlay {
    opacity: 1;
}

.product-overlay i {
    font-size: 3rem;
    color: white;
}

.product-content {
    padding: 25px;
}

.product-content h3 {
    font-size: 1.4rem;
    color: #2c5aa0;
    margin-bottom: 15px;
}

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

.product-features {
    list-style: none;
}

.product-features li {
    padding: 5px 0;
    color: #555;
    position: relative;
    padding-left: 20px;
}

.product-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #4CAF50;
    font-weight: bold;
}

/* 技术研发样式 */
.technology {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.tech-item {
    background: white;
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

.tech-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #2c5aa0, #4CAF50);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.tech-icon i {
    font-size: 2rem;
    color: white;
}

.tech-item h3 {
    font-size: 1.3rem;
    color: #2c5aa0;
    margin-bottom: 15px;
}

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

.tech-image {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: 10px;
}

/* 企业文化样式 */
.culture-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: center;
}

.culture-values {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.value-item {
    text-align: center;
    padding: 25px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

.value-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #2c5aa0, #4CAF50);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
}

.value-icon i {
    font-size: 1.5rem;
    color: white;
}

.value-item h3 {
    font-size: 1.2rem;
    color: #2c5aa0;
    margin-bottom: 10px;
}

.value-item p {
    color: #666;
    font-size: 0.9rem;
    line-height: 1.5;
}

.culture-images {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.culture-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 10px;
    transition: transform 0.3s ease;
}

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

/* 新闻动态样式 */
.news {
    background: #f8f9fa;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.news-item {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

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

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

.news-date {
    position: absolute;
    top: 15px;
    right: 15px;
    background: rgba(44, 90, 160, 0.9);
    color: white;
    padding: 5px 10px;
    border-radius: 15px;
    font-size: 0.8rem;
}

.news-content {
    padding: 25px;
}

.news-content h3 {
    font-size: 1.3rem;
    color: #2c5aa0;
    margin-bottom: 15px;
    line-height: 1.4;
}

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

.read-more {
    color: #2c5aa0;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.read-more:hover {
    color: #4CAF50;
}

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

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

/* 联系我们样式 */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 30px;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #2c5aa0, #4CAF50);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 20px;
    flex-shrink: 0;
}

.contact-icon i {
    font-size: 1.2rem;
    color: white;
}

.contact-details h3 {
    font-size: 1.2rem;
    color: #2c5aa0;
    margin-bottom: 5px;
}

.contact-details p {
    color: #666;
    margin-bottom: 3px;
}

.contact-form {
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.contact-form h3 {
    font-size: 1.5rem;
    color: #2c5aa0;
    margin-bottom: 25px;
    text-align: center;
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    font-size: 16px;
    transition: border-color 0.3s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #2c5aa0;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* 底部样式 */
.footer {
    background: #1a1a1a;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-logo i {
    margin-right: 10px;
    color: #4CAF50;
}

.footer-section p {
    color: #ccc;
    line-height: 1.6;
    margin-bottom: 20px;
}

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

.social-links a {
    width: 40px;
    height: 40px;
    background: #333;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: #2c5aa0;
    transform: translateY(-2px);
}

.footer-section h3 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: #4CAF50;
}

.footer-section ul {
    list-style: none;
}

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

.footer-section ul li a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #4CAF50;
}

.footer-contact p {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
    color: #ccc;
}

.footer-contact i {
    margin-right: 10px;
    color: #4CAF50;
    width: 20px;
}

.footer-divider {
    height: 1px;
    background: #333;
    margin: 20px 0;
}

.footer-info {
    text-align: center;
    color: #999;
}

.footer-info p {
    margin-bottom: 5px;
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #2c5aa0, #4CAF50);
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
}

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

.back-to-top:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(44, 90, 160, 0.3);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 20px 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .slide-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .stats {
        grid-template-columns: 1fr 1fr;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .tech-grid {
        grid-template-columns: 1fr;
    }
    
    .culture-content {
        grid-template-columns: 1fr;
    }
    
    .culture-values {
        grid-template-columns: 1fr;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 480px) {
    .slide-content h1 {
        font-size: 2rem;
    }
    
    .slide-content p {
        font-size: 1.1rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .stats {
        grid-template-columns: 1fr;
    }
    
    .image-grid {
        grid-template-columns: 1fr;
    }
}

/* 页面头部样式 */
.page-header {
    position: relative;
    height: 60vh;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-top: 70px;
}

.header-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.header-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.header-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(44, 90, 160, 0.8), rgba(76, 175, 80, 0.6));
    z-index: 2;
}

.header-content {
    position: relative;
    z-index: 3;
    text-align: center;
    color: white;
    width: 100%;
}

.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.breadcrumb a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumb a:hover {
    color: white;
}

.breadcrumb span {
    color: rgba(255, 255, 255, 0.6);
}

.header-content h1 {
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: 15px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.header-content p {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
}

/* 产品概述样式 */
.product-overview, .lab-overview {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
}

.overview-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.overview-text h2 {
    font-size: 2.2rem;
    color: #2c5aa0;
    margin-bottom: 25px;
    position: relative;
}

.overview-text h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(135deg, #2c5aa0, #4CAF50);
}

.overview-text > p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #555;
    margin-bottom: 40px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
}

.feature-item {
    background: white;
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

.feature-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #2c5aa0, #4CAF50);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 15px;
}

.feature-icon i {
    font-size: 1.2rem;
    color: white;
}

.feature-item h3 {
    font-size: 1.1rem;
    color: #2c5aa0;
    margin-bottom: 8px;
}

.feature-item p {
    color: #666;
    font-size: 0.9rem;
    line-height: 1.5;
}

.overview-image {
    position: relative;
}

.overview-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

/* 产品分类和设备展示样式 */
.product-categories, .equipment-showcase {
    padding: 100px 0;
    background: white;
}

.categories-grid, .equipment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.category-card, .equipment-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.category-card:hover, .equipment-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

.category-image, .equipment-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.category-image img, .equipment-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.category-card:hover .category-image img,
.equipment-card:hover .equipment-image img {
    transform: scale(1.1);
}

.category-content, .equipment-content {
    padding: 30px;
}

.category-content h3, .equipment-content h3 {
    font-size: 1.4rem;
    color: #2c5aa0;
    margin-bottom: 15px;
    font-weight: 700;
}

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

.category-specs, .equipment-specs {
    list-style: none;
    padding: 0;
}

.category-specs li, .equipment-specs li {
    padding: 8px 0;
    color: #555;
    position: relative;
    padding-left: 25px;
    font-size: 0.9rem;
}

.category-specs li::before, .equipment-specs li::before {
    content: '●';
    position: absolute;
    left: 0;
    color: #4CAF50;
    font-weight: bold;
}

/* 应用领域样式 */
.applications {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
}

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

.application-item {
    background: white;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.application-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.app-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #2c5aa0, #4CAF50);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: transform 0.3s ease;
}

.application-item:hover .app-icon {
    transform: scale(1.1);
}

.app-icon i {
    font-size: 2rem;
    color: white;
}

.application-item h3 {
    font-size: 1.2rem;
    color: #2c5aa0;
    margin-bottom: 15px;
    font-weight: 700;
}

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

/* 处理工艺和质量控制样式 */
.treatment-process, .quality-control {
    padding: 100px 0;
    background: white;
}

.process-steps, .control-process {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.step-item, .process-step {
    text-align: center;
    padding: 30px;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border-radius: 20px;
    position: relative;
    transition: all 0.3s ease;
}

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

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #2c5aa0, #4CAF50);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.5rem;
    font-weight: 900;
    color: white;
}

.step-content h3 {
    font-size: 1.3rem;
    color: #2c5aa0;
    margin-bottom: 15px;
    font-weight: 700;
}

.step-content p {
    color: #666;
    line-height: 1.6;
}

/* 检测项目样式 */
.testing-projects {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
}

.testing-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.testing-category {
    background: white;
    padding: 40px 30px;
    border-radius: 20px;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.testing-category:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.category-header {
    display: flex;
    align-items: center;
    margin-bottom: 25px;
}

.category-header i {
    font-size: 2rem;
    color: #2c5aa0;
    margin-right: 15px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, rgba(44, 90, 160, 0.1), rgba(76, 175, 80, 0.1));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.category-header h3 {
    font-size: 1.3rem;
    color: #2c5aa0;
    font-weight: 700;
}

.testing-list {
    list-style: none;
    padding: 0;
}

.testing-list li {
    padding: 10px 0;
    color: #555;
    position: relative;
    padding-left: 25px;
    border-bottom: 1px solid #f0f0f0;
    transition: color 0.3s ease;
}

.testing-list li:hover {
    color: #2c5aa0;
}

.testing-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #4CAF50;
    font-weight: bold;
}

.testing-list li:last-child {
    border-bottom: none;
}

/* 技术优势样式 */
.tech-advantages {
    padding: 100px 0;
    background: white;
}

.advantages-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.advantages-text h2 {
    font-size: 2.2rem;
    color: #2c5aa0;
    margin-bottom: 40px;
    position: relative;
}

.advantages-text h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(135deg, #2c5aa0, #4CAF50);
}

.advantage-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.advantage-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 25px;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border-radius: 15px;
    transition: all 0.3s ease;
}

.advantage-item:hover {
    transform: translateX(10px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.advantage-number {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #2c5aa0, #4CAF50);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    font-weight: 900;
    color: white;
    flex-shrink: 0;
}

.advantage-info h3 {
    font-size: 1.2rem;
    color: #2c5aa0;
    margin-bottom: 10px;
    font-weight: 700;
}

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

.advantages-image {
    position: relative;
}

.advantages-image img {
    width: 100%;
    height: 450px;
    object-fit: cover;
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

/* 联系我们样式增强 */
.contact-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: flex-start;
}

.contact-info h2 {
    font-size: 2.2rem;
    color: #2c5aa0;
    margin-bottom: 20px;
    position: relative;
}

.contact-info h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(135deg, #2c5aa0, #4CAF50);
}

.contact-info > p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 40px;
    font-size: 1.1rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    padding: 20px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.contact-item i {
    font-size: 1.5rem;
    color: #2c5aa0;
    margin-right: 20px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, rgba(44, 90, 160, 0.1), rgba(76, 175, 80, 0.1));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-item span {
    font-size: 1.1rem;
    color: #333;
    font-weight: 500;
}

.contact-form {
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.contact-form h3 {
    font-size: 1.5rem;
    color: #2c5aa0;
    margin-bottom: 30px;
    text-align: center;
    font-weight: 700;
}

.form-group {
    margin-bottom: 25px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid #e9ecef;
    border-radius: 12px;
    font-size: 16px;
    transition: all 0.3s ease;
    font-family: inherit;
    background: #f8f9fa;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #2c5aa0;
    background: white;
    box-shadow: 0 0 0 3px rgba(44, 90, 160, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* 响应式设计增强 */
@media (max-width: 768px) {
    .overview-content,
    .advantages-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

    .categories-grid,
    .equipment-grid {
        grid-template-columns: 1fr;
    }

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

    .process-steps,
    .control-process {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .testing-categories {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .header-content h1 {
        font-size: 2.5rem;
    }

    .overview-text h2,
    .advantages-text h2,
    .contact-info h2 {
        font-size: 1.8rem;
    }
}

@media (max-width: 480px) {
    .header-content h1 {
        font-size: 2rem;
    }

    .header-content p {
        font-size: 1rem;
    }

    .page-header {
        height: 50vh;
        min-height: 350px;
    }

    .contact-form {
        padding: 30px 20px;
    }
}

/* 新闻页面专用样式 */
.latest-news, .news-section {
    padding: 100px 0;
    background: white;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.news-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.news-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

.news-card.featured {
    grid-column: span 2;
}

@media (max-width: 768px) {
    .news-card.featured {
        grid-column: span 1;
    }
}

.news-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.news-badge {
    position: absolute;
    top: 15px;
    left: 15px;
    background: linear-gradient(135deg, #2c5aa0, #4CAF50);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.news-content {
    padding: 30px;
}

.news-meta {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.news-date {
    color: #999;
    font-size: 0.9rem;
}

.news-category {
    background: linear-gradient(135deg, rgba(44, 90, 160, 0.1), rgba(76, 175, 80, 0.1));
    color: #2c5aa0;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
}

.news-content h3 {
    font-size: 1.4rem;
    color: #2c5aa0;
    margin-bottom: 15px;
    font-weight: 700;
    line-height: 1.4;
}

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

.news-excerpt {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-read-more {
    display: inline-flex;
    align-items: center;
    color: #2c5aa0;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.news-read-more:hover {
    color: #4CAF50;
    transform: translateX(5px);
}

.news-read-more i {
    margin-left: 8px;
    transition: transform 0.3s ease;
}

.news-read-more:hover i {
    transform: translateX(3px);
}

/* 新闻分类标签 */
.news-tags {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.news-tag {
    background: #f8f9fa;
    color: #666;
    padding: 6px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    text-decoration: none;
    transition: all 0.3s ease;
}

.news-tag:hover {
    background: #2c5aa0;
    color: white;
    transform: translateY(-2px);
}

/* 新闻统计信息 */
.news-stats {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #f0f0f0;
}

.news-stat {
    display: flex;
    align-items: center;
    gap: 5px;
    color: #999;
    font-size: 0.9rem;
}

.news-stat i {
    color: #2c5aa0;
}

/* 新闻搜索和筛选 */
.news-filters {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 20px;
}

.filter-tabs {
    display: flex;
    gap: 10px;
}

.filter-tab {
    padding: 10px 20px;
    background: #f8f9fa;
    color: #666;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.filter-tab.active,
.filter-tab:hover {
    background: linear-gradient(135deg, #2c5aa0, #4CAF50);
    color: white;
    transform: translateY(-2px);
}

.news-search {
    position: relative;
}

.news-search input {
    width: 300px;
    padding: 12px 20px 12px 45px;
    border: 2px solid #e9ecef;
    border-radius: 25px;
    font-size: 14px;
    transition: all 0.3s ease;
}

.news-search input:focus {
    outline: none;
    border-color: #2c5aa0;
    box-shadow: 0 0 0 3px rgba(44, 90, 160, 0.1);
}

.news-search i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #999;
}

@media (max-width: 768px) {
    .news-search input {
        width: 250px;
    }

    .news-filters {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-tabs {
        justify-content: center;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* 滚动动画 */
.scroll-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.scroll-animate.animate {
    opacity: 1;
    transform: translateY(0);
}

/* 公司新闻页面专用样式 */
.company-milestones {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(135deg, #2c5aa0, #4CAF50);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 50px;
    width: 50%;
}

.timeline-item:nth-child(odd) {
    left: 0;
    padding-right: 40px;
    text-align: right;
}

.timeline-item:nth-child(even) {
    left: 50%;
    padding-left: 40px;
    text-align: left;
}

.timeline-item::before {
    content: '';
    position: absolute;
    top: 20px;
    width: 16px;
    height: 16px;
    background: #2c5aa0;
    border-radius: 50%;
    border: 4px solid white;
    box-shadow: 0 0 10px rgba(44, 90, 160, 0.3);
}

.timeline-item:nth-child(odd)::before {
    right: -8px;
}

.timeline-item:nth-child(even)::before {
    left: -8px;
}

.timeline-date {
    font-size: 1.2rem;
    font-weight: 700;
    color: #2c5aa0;
    margin-bottom: 10px;
}

.timeline-content {
    background: white;
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.timeline-content:hover {
    transform: translateY(-5px);
}

.timeline-content h3 {
    font-size: 1.3rem;
    color: #2c5aa0;
    margin-bottom: 15px;
    font-weight: 700;
}

.timeline-content p {
    color: #666;
    line-height: 1.6;
}

/* 荣誉资质样式 */
.honors-awards {
    padding: 100px 0;
    background: white;
}

.honors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.honor-card {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.honor-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.honor-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #2c5aa0, #4CAF50);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.honor-icon i {
    font-size: 2.5rem;
    color: white;
}

.honor-card h3 {
    font-size: 1.3rem;
    color: #2c5aa0;
    margin-bottom: 15px;
    font-weight: 700;
}

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

.honor-year {
    display: inline-block;
    background: linear-gradient(135deg, #2c5aa0, #4CAF50);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

/* 企业文化活动样式 */
.corporate-activities {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
}

.activities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.activity-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.activity-card:hover {
    transform: translateY(-10px);
}

.activity-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.activity-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.activity-card:hover .activity-image img {
    transform: scale(1.1);
}

.activity-content {
    padding: 30px;
}

.activity-date {
    color: #2c5aa0;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.activity-content h3 {
    font-size: 1.3rem;
    color: #2c5aa0;
    margin-bottom: 15px;
    font-weight: 700;
}

.activity-content p {
    color: #666;
    line-height: 1.6;
}

/* 媒体报道样式 */
.media-coverage {
    padding: 100px 0;
    background: white;
}

.media-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-top: 60px;
}

.media-item {
    display: flex;
    align-items: flex-start;
    gap: 30px;
    padding: 30px;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border-radius: 20px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.media-item:hover {
    transform: translateX(10px);
}

.media-source {
    display: flex;
    align-items: center;
    gap: 15px;
    min-width: 200px;
}

.media-source i {
    font-size: 2rem;
    color: #2c5aa0;
    width: 50px;
    height: 50px;
    background: rgba(44, 90, 160, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.media-source span {
    font-size: 1.1rem;
    font-weight: 600;
    color: #2c5aa0;
}

.media-content {
    flex: 1;
}

.media-content h3 {
    font-size: 1.3rem;
    color: #2c5aa0;
    margin-bottom: 15px;
    font-weight: 700;
}

.media-content p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 15px;
}

.media-date {
    color: #999;
    font-size: 0.9rem;
}

/* 行业资讯页面专用样式 */
.hot-news-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 30px;
    margin-top: 60px;
}

.hot-news-item {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.hot-news-item.featured {
    grid-row: span 2;
}

.hot-news-item:hover {
    transform: translateY(-10px);
}

.hot-news-item .news-badge.hot {
    background: linear-gradient(135deg, #ff6b6b, #ee5a24);
}

/* 政策法规样式 */
.policy-news {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
}

.policy-list {
    display: flex;
    flex-direction: column;
    gap: 25px;
    margin-top: 60px;
}

.policy-item {
    display: flex;
    align-items: flex-start;
    gap: 25px;
    padding: 30px;
    background: white;
    border-radius: 20px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

.policy-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #2c5aa0, #4CAF50);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.policy-icon i {
    font-size: 1.5rem;
    color: white;
}

.policy-content {
    flex: 1;
}

.policy-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 15px;
}

.policy-date, .policy-source {
    color: #999;
    font-size: 0.9rem;
}

.policy-source {
    font-weight: 600;
}

.policy-content h3 {
    font-size: 1.3rem;
    color: #2c5aa0;
    margin-bottom: 15px;
    font-weight: 700;
}

.policy-content p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 15px;
}

.policy-status {
    display: inline-block;
    padding: 6px 12px;
    background: linear-gradient(135deg, #4CAF50, #45a049);
    color: white;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* 市场动态样式 */
.market-trends {
    padding: 100px 0;
    background: white;
}

.trends-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.trend-card {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.trend-card:hover {
    transform: translateY(-5px);
}

.trend-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.trend-header h3 {
    font-size: 1.3rem;
    color: #2c5aa0;
    font-weight: 700;
}

.trend-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
}

.trend-indicator.up {
    background: rgba(76, 175, 80, 0.1);
    color: #4CAF50;
}

.trend-indicator.down {
    background: rgba(244, 67, 54, 0.1);
    color: #f44336;
}

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

.trend-details {
    display: flex;
    gap: 20px;
}

.trend-details span {
    color: #999;
    font-size: 0.9rem;
}

/* 技术发展样式 */
.technology-news {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
}

.tech-news-list {
    display: flex;
    flex-direction: column;
    gap: 40px;
    margin-top: 60px;
}

.tech-news-item {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 40px;
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.tech-news-item:hover {
    transform: translateY(-5px);
}

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

.tech-news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.tech-news-content {
    padding: 30px;
}

.tech-news-meta {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
}

.tech-tag {
    background: linear-gradient(135deg, rgba(44, 90, 160, 0.1), rgba(76, 175, 80, 0.1));
    color: #2c5aa0;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
}

.tech-news-content h3 {
    font-size: 1.4rem;
    color: #2c5aa0;
    margin-bottom: 15px;
    font-weight: 700;
    line-height: 1.4;
}

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

.tech-highlights {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.highlight {
    background: linear-gradient(135deg, #4CAF50, #45a049);
    color: white;
    padding: 6px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* 行业数据样式 */
.industry-data {
    padding: 100px 0;
    background: white;
}

.data-dashboard {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.data-card {
    display: flex;
    align-items: center;
    gap: 25px;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.data-card:hover {
    transform: translateY(-5px);
}

.data-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #2c5aa0, #4CAF50);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.data-icon i {
    font-size: 2rem;
    color: white;
}

.data-content h3 {
    font-size: 1.1rem;
    color: #2c5aa0;
    margin-bottom: 10px;
    font-weight: 700;
}

.data-value {
    font-size: 2rem;
    font-weight: 900;
    color: #2c5aa0;
    margin-bottom: 5px;
}

.data-change {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 5px;
}

.data-change.positive {
    color: #4CAF50;
}

.data-change.negative {
    color: #f44336;
}

.data-content p {
    color: #999;
    font-size: 0.9rem;
}

/* 专家观点样式 */
.expert-opinions {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
}

.opinions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.opinion-card {
    background: white;
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.opinion-card:hover {
    transform: translateY(-5px);
}

.expert-info {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 25px;
}

.expert-avatar {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #2c5aa0, #4CAF50);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.expert-avatar i {
    font-size: 1.5rem;
    color: white;
}

.expert-details h4 {
    font-size: 1.2rem;
    color: #2c5aa0;
    margin-bottom: 5px;
    font-weight: 700;
}

.expert-details p {
    color: #999;
    font-size: 0.9rem;
}

.opinion-content {
    position: relative;
    padding: 20px;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border-radius: 15px;
    font-style: italic;
}

.opinion-content::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: 15px;
    font-size: 3rem;
    color: #2c5aa0;
    font-family: serif;
}

.opinion-content p {
    color: #555;
    line-height: 1.6;
    margin: 0;
}

/* 技术交流页面专用样式 */
.cooperation-partners {
    padding: 100px 0;
    background: white;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.partner-card {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
    text-align: center;
}

.partner-card:hover {
    transform: translateY(-10px);
}

.partner-logo {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #2c5aa0, #4CAF50);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.partner-logo i {
    font-size: 2.5rem;
    color: white;
}

.partner-info h3 {
    font-size: 1.3rem;
    color: #2c5aa0;
    margin-bottom: 10px;
    font-weight: 700;
}

.partner-info p {
    color: #666;
    margin-bottom: 20px;
}

.cooperation-areas {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.area-tag {
    background: white;
    color: #2c5aa0;
    padding: 6px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    border: 1px solid #e9ecef;
}

.cooperation-status {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: #4CAF50;
    font-weight: 600;
}

.cooperation-status i {
    font-size: 1.2rem;
}

/* 合作项目样式 */
.cooperation-projects {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
}

.projects-timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    margin-top: 60px;
}

.project-item {
    position: relative;
    margin-bottom: 40px;
    padding-left: 60px;
}

.project-item::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: -40px;
    width: 3px;
    background: linear-gradient(135deg, #2c5aa0, #4CAF50);
}

.project-item:last-child::before {
    bottom: 50px;
}

.project-status {
    position: absolute;
    left: 0;
    top: 15px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 600;
    color: white;
    z-index: 2;
}

.project-item.ongoing .project-status {
    background: linear-gradient(135deg, #4CAF50, #45a049);
}

.project-item.completed .project-status {
    background: linear-gradient(135deg, #2c5aa0, #1e4175);
}

.project-content {
    background: white;
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.project-content:hover {
    transform: translateY(-5px);
}

.project-header {
    margin-bottom: 20px;
}

.project-header h3 {
    font-size: 1.3rem;
    color: #2c5aa0;
    margin-bottom: 10px;
    font-weight: 700;
}

.project-partner {
    color: #4CAF50;
    font-weight: 600;
    font-size: 0.9rem;
}

.project-content p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 25px;
}

.project-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #555;
    font-size: 0.9rem;
}

.detail-item i {
    color: #2c5aa0;
    width: 16px;
}

/* 技术成果展示样式 */
.technical-achievements {
    padding: 100px 0;
    background: white;
}

.achievements-showcase {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.achievement-item {
    text-align: center;
    padding: 40px 30px;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border-radius: 20px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.achievement-item:hover {
    transform: translateY(-10px);
}

.achievement-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #2c5aa0, #4CAF50);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.achievement-icon i {
    font-size: 2.5rem;
    color: white;
}

.achievement-content h3 {
    font-size: 1.2rem;
    color: #2c5aa0;
    margin-bottom: 15px;
    font-weight: 700;
}

.achievement-number {
    font-size: 3rem;
    font-weight: 900;
    color: #2c5aa0;
    margin-bottom: 10px;
}

.achievement-content p {
    color: #666;
    font-size: 0.9rem;
}

/* 合作机会样式 */
.cooperation-opportunities {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
}

.opportunities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.opportunity-card {
    background: white;
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.opportunity-card:hover {
    transform: translateY(-5px);
}

.opportunity-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.opportunity-header i {
    font-size: 2rem;
    color: #2c5aa0;
    width: 50px;
    height: 50px;
    background: rgba(44, 90, 160, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.opportunity-header h3 {
    font-size: 1.3rem;
    color: #2c5aa0;
    font-weight: 700;
}

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

.opportunity-list {
    list-style: none;
    padding: 0;
}

.opportunity-list li {
    padding: 8px 0;
    color: #555;
    position: relative;
    padding-left: 25px;
    font-size: 0.9rem;
}

.opportunity-list li::before {
    content: '●';
    position: absolute;
    left: 0;
    color: #4CAF50;
    font-weight: bold;
}

/* 响应式设计 - 新闻页面 */
@media (max-width: 768px) {
    .timeline::before {
        left: 20px;
    }

    .timeline-item {
        width: 100%;
        left: 0 !important;
        padding-left: 60px;
        padding-right: 0;
        text-align: left;
    }

    .timeline-item::before {
        left: 12px !important;
        right: auto !important;
    }

    .hot-news-grid {
        grid-template-columns: 1fr;
    }

    .hot-news-item.featured {
        grid-row: span 1;
    }

    .tech-news-item {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .tech-news-image {
        height: 250px;
    }

    .media-item {
        flex-direction: column;
        gap: 20px;
    }

    .media-source {
        min-width: auto;
    }

    .project-item {
        padding-left: 50px;
    }

    .project-item::before {
        left: 15px;
    }

    .project-status {
        left: -5px;
        width: 30px;
        height: 30px;
        font-size: 0.7rem;
    }

    .honors-grid,
    .activities-grid,
    .partners-grid,
    .trends-grid,
    .data-dashboard,
    .opinions-grid,
    .achievements-showcase,
    .opportunities-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}