/* 全局样式设置 */
:root {
    /* 主色调 */
    --primary-color: #1e6ed3;
    --primary-dark: #1354a9;
    --primary-light: #4c8be8;
    
    /* 辅助色 */
    --secondary-color: #34c3ff;
    --accent-color: #0043b8;
    
    /* 中性色 */
    --dark-color: #1a2b3c;
    --text-color: #333333;
    --light-text-color: #666666;
    --bg-color: #ffffff;
    --light-bg: #f8f9fa;
    --border-color: #e1e1e1;
}

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

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--bg-color);
}

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

img {
    max-width: 100%;
    height: auto;
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: color 0.3s ease;
}

a:hover {
    color: var(--primary-dark);
}

ul {
    list-style: none;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--dark-color);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-header h2:after {
    content: '';
    position: absolute;
    width: 50px;
    height: 3px;
    background-color: var(--primary-color);
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
}

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

.section-header.light h2,
.section-header.light p {
    color: #fff;
}

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

/* 标题栏样式 */
header {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo img {
    height: 50px;
}
.logo p{
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-color);
    line-height: 50px;
    margin-left: 10px;
    height: 50px;
    color: #0043b8;
}
 .logo-text{
    display: flex;

}
nav {
    display: flex;
    align-items: center;
}

.menu {
    display: flex;
}

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

.menu a {
    color: var(--text-color);
    font-weight: 500;
    padding: 5px 0;
    position: relative;
}

.menu a:after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    bottom: 0;
    left: 0;
    transition: width 0.3s ease;
}

.menu a:hover:after,
.menu a.active:after {
    width: 100%;
}

.menu a.cta-btn {
    background-color: var(--primary-color);
    color: #fff;
    padding: 10px 20px;
    border-radius: 4px;
    transition: background-color 0.3s ease;
}

.menu a.cta-btn:hover {
    background-color: var(--primary-dark);
}

.menu a.cta-btn:after {
    display: none;
}

.hamburger {
    display: none;
    cursor: pointer;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    margin: 5px 0;
    transition: all 0.3s ease;
}

/* 英雄区域样式 */
.hero {
    padding: 150px 0 100px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: #fff;
    position: relative;
    overflow: hidden;
}

.hero:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../img/pattern.png');
    opacity: 0.1;
}

.hero .container {
    display: flex;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    flex: 1;
    padding-right: 50px;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: flex-end;
}

.hero h1 {
    font-size: 3rem;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    gap: 15px;
}

.primary-btn {
    background-color: #fff;
    color: var(--primary-color);
    padding: 12px 30px;
    border-radius: 4px;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
}

.primary-btn:hover {
    background-color: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
}

.secondary-btn {
    background-color: transparent;
    color: #fff;
    padding: 12px 30px;
    border-radius: 4px;
    font-weight: 600;
    border: 2px solid #fff;
    transition: all 0.3s ease;
    display: inline-block;
}

.secondary-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

/* 行业挑战部分 */
.challenges {
    padding: 100px 0;
    background-color: var(--light-bg);
}

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

.challenge-card {
    background-color: #fff;
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

.challenge-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.challenge-card .icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.challenge-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.challenge-card p {
    color: var(--light-text-color);
}

/* 解决方案部分 */
.solution {
    padding: 100px 0;
}

.solution-content {
    display: flex;
    align-items: center;
    gap: 50px;
}

.solution-text {
    flex: 1;
}

.solution-text > p {
    margin-bottom: 30px;
    color: var(--light-text-color);
    line-height: 1.8;
}

.solution-image {
    flex: 1;
}

.solution-image img {
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

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

.point {
    display: flex;
    align-items: flex-start;
}

.point-icon {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-right: 15px;
}

.point-text h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: var(--dark-color);
}

.point-text p {
    color: var(--light-text-color);
}

/* 功能特点部分 */
.features {
    padding: 100px 0;
    background-color: var(--light-bg);
}

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

.feature-card {
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

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

.feature-card img {
    width: 100%;
    height: 150px;
    object-fit: cover;
}

.feature-card h3 {
    font-size: 1.2rem;
    margin: 20px 20px 10px;
    color: var(--dark-color);
}

.feature-card p {
    padding: 0 20px 20px;
    color: var(--light-text-color);
}

/* 数据部分 */
.data-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color)), url('../img/hero-image.jpg') center center/cover no-repeat;
    color: #fff;
    position: relative;
}

.data-section:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../img/pattern.png');
    opacity: 0.2;
    z-index: 1;
}

.data-section > .container {
    position: relative;
    z-index: 2;
}

.data-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    position: relative;
    z-index: 1;
}

.data-card {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 30px;
    -webkit-backdrop-filter: blur(5px);
    backdrop-filter: blur(5px);
    transition: transform 0.3s ease, background-color 0.3s ease;
    text-align: center;
}

.data-card:hover {
    transform: translateY(-5px);
    background-color: rgba(255, 255, 255, 0.2);
}

.data-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.data-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.data-card p {
    opacity: 0.9;
}

/* 案例部分 */
.cases {
    padding: 100px 0;
}

.cases-slider {
    display: flex;
    gap: 30px;
}

.case-card {
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.07);
    flex: 1;
}

.case-image {
    height: 250px;
    overflow: hidden;
}

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

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

.case-content {
    padding: 25px;
}

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

.case-content p {
    color: var(--light-text-color);
    margin-bottom: 20px;
}

.read-more {
    color: var(--primary-color);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
}

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

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

/* 优势部分 */
.advantages {
    padding: 80px 0;
    background-color: var(--light-bg);
}

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

.advantage-card {
    background-color: #fff;
    border-radius: 8px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

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

.advantage-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.advantage-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.advantage-card p {
    color: var(--light-text-color);
}

/* 联系部分 */
.contact {
    padding: 100px 0;
}

.contact-content {
    display: flex;
    gap: 50px;
}

.contact-info {
    flex: 1;
}

.contact-info h2 {
    font-size: 2.5rem;
    color: var(--dark-color);
    margin-bottom: 15px;
}

.contact-info > p {
    color: var(--light-text-color);
    margin-bottom: 30px;
}

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

.contact-method {
    display: flex;
    align-items: center;
}

.method-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--primary-light);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    margin-right: 15px;
}

.method-details h4 {
    font-size: 1.2rem;
    color: var(--dark-color);
    margin-bottom: 5px;
}

.contact-form {
    flex: 1;
    background-color: var(--light-bg);
    padding: 40px;
    border-radius: 8px;
}

.contact-form h3 {
    font-size: 1.8rem;
    color: var(--dark-color);
    margin-bottom: 25px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--dark-color);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.submit-btn {
    background-color: var(--primary-color);
    color: #fff;
    border: none;
    padding: 12px 30px;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.submit-btn:hover {
    background-color: var(--primary-dark);
}

/* 页脚部分 */
footer {
    background-color: var(--dark-color);
    color: #fff;
    padding: 70px 0 0;
}

.footer-content {
    display: flex;
    gap: 50px;
    margin-bottom: 50px;
}

.footer-logo {
    flex: 1;
}

.footer-logo img {
    height: 40px;
    margin-bottom: 20px;
}

.footer-logo p {
    opacity: 0.7;
    line-height: 1.8;
}

.footer-links {
    flex: 2;
    display: flex;
    justify-content: space-between;
}

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

.footer-column h4:after {
    content: '';
    position: absolute;
    width: 30px;
    height: 2px;
    background-color: var(--primary-color);
    bottom: 0;
    left: 0;
}

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

.footer-column ul li a {
    color: rgba(255, 255, 255, 0.7);
    transition: color 0.3s ease;
}

.footer-column ul li a:hover {
    color: #fff;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.copyright p {
    opacity: 0.7;
    font-size: 0.9rem;
}

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

.social-links a {
    color: #fff;
    font-size: 1.2rem;
    transition: color 0.3s ease;
}

.social-links a:hover {
    color: var(--primary-light);
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .hero {
        padding: 120px 0 80px;
    }
    
    .hero .container {
        flex-direction: column;
    }
    
    .hero-content {
        padding-right: 0;
        margin-bottom: 50px;
        text-align: center;
    }
    
    .cta-buttons {
        justify-content: center;
    }
    
    .challenges-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .solution-content {
        flex-direction: column;
    }
    
    .solution-text {
        margin-bottom: 50px;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-content {
        flex-direction: column;
    }
    
    .contact-info {
        margin-bottom: 50px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 30px;
    }
    
    .footer-links {
        flex-wrap: wrap;
        gap: 30px;
    }
}

@media (max-width: 768px) {
    header .container {
        height: 70px;
    }
    
    .hamburger {
        display: block;
    }
    
    .menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: #fff;
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding-top: 50px;
        transition: left 0.3s ease;
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
    }
    
    .menu.active {
        left: 0;
    }
    
    .menu li {
        margin: 0 0 30px;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .solution-points {
        grid-template-columns: 1fr;
    }
    
    .cases-slider {
        flex-direction: column;
    }
    
    .case-card {
        margin-bottom: 30px;
    }
}

@media (max-width: 576px) {
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .challenges-grid,
    .features-grid,
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: 10px;
    }
    
    .cta-buttons a {
        width: 100%;
        text-align: center;
    }
    
    .footer-column {
        width: 100%;
        margin-bottom: 30px;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }
}

/* 滚动后的导航栏样式 */
header.scrolled {
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    height: 70px;
}

header.scrolled .logo img {
    height: 35px;
}

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

.feature-card, .data-card, .challenge-card, .advantage-card, .case-card {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.feature-card.visible, .data-card.visible, .challenge-card.visible, .advantage-card.visible, .case-card.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 汉堡菜单动画 */
.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* 表单错误状态 */
.form-group input.error,
.form-group textarea.error {
    border-color: #e74c3c;
    background-color: rgba(231, 76, 60, 0.05);
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
    margin-left: 10px;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* 额外响应式调整 */
@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .section-header h2 {
        font-size: 1.7rem;
    }
    
    .contact-method {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .method-icon {
        margin: 0 0 15px 0;
    }
}

/* 滚动到顶部按钮 */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    z-index: 99;
}

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

.scroll-top:hover {
    background-color: var(--primary-dark);
    transform: translateY(-3px);
}

/* 新闻部分 */
.news {
    padding: 100px 0;
    background-color: var(--bg-color);
}

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

.news-card {
    background-color: var(--bg-color);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

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

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

.news-card:hover .news-image img {
    transform: scale(1.08);
}

.news-date {
    position: absolute;
    bottom: 0;
    left: 0;
    background-color: var(--primary-color);
    color: #fff;
    padding: 8px 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    border-top-right-radius: 8px;
}

.news-date .day {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1;
}

.news-date .month {
    font-size: 0.9rem;
    font-weight: 500;
}

.news-content {
    padding: 25px;
}

.news-content h3 {
    font-size: 1.2rem;
    color: var(--dark-color);
    margin-bottom: 15px;
    transition: color 0.3s ease;
}

.news-card:hover .news-content h3 {
    color: var(--primary-color);
}

.news-content p {
    color: var(--light-text-color);
    margin-bottom: 20px;
    line-height: 1.6;
}

.news-more-btn {
    text-align: center;
    margin-top: 50px;
}

.news-more-btn .secondary-btn {
    background-color: transparent;
    color: var(--primary-color);
    padding: 12px 30px;
    border-radius: 4px;
    font-weight: 600;
    border: 2px solid var(--primary-color);
    transition: all 0.3s ease;
    display: inline-block;
}

.news-more-btn .secondary-btn:hover {
    background-color: var(--primary-color);
    color: #fff;
    transform: translateY(-2px);
}

/* 新闻列表页样式 */
.news-listing {
    padding: 150px 0 100px;
}

.news-filters {
    display: flex;
    flex-direction: column;
    margin-bottom: 40px;
}

.filter-search-form {
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
}

.news-filters .filter-categories {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.news-filters .filter-category {
    padding: 8px 15px;
    border-radius: 4px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.news-filters .filter-category.active,
.news-filters .filter-category:hover {
    background-color: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}

.news-filters .filter-search {
    position: relative;
    margin-top: 20px;
}

.news-filters .filter-search input {
    width: 100%;
    padding: 12px 20px 12px 40px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.news-filters .filter-search input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 5px rgba(30, 110, 211, 0.2);
}

.news-filters .filter-search i {
    position: absolute;
    top: 50%;
    left: 15px;
    transform: translateY(-50%);
    color: var(--light-text-color);
}

.news-filters .filter-search .search-btn {
    position: absolute;
    top: 50%;
    right: 10px;
    transform: translateY(-50%);
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    padding: 8px 15px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.news-filters .filter-search .search-btn:hover {
    background-color: var(--primary-dark);
}

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

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
}

.pagination .page-item {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.pagination .page-item.active,
.pagination .page-item:hover {
    background-color: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}

.pagination .page-arrow {
    color: var(--primary-color);
}

/* 新闻详情页样式 */
.news-detail {
    padding: 150px 0 100px;
}

.news-detail-container {
    max-width: 900px;
    margin: 0 auto;
}

.news-header {
    margin-bottom: 40px;
    text-align: center;
}

.news-header h1 {
    font-size: 2.5rem;
    color: var(--dark-color);
    margin-bottom: 15px;
    line-height: 1.3;
}

.news-meta {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 30px;
    color: var(--light-text-color);
    margin-bottom: 30px;
}

.news-meta span {
    display: flex;
    align-items: center;
}

.news-meta i {
    margin-right: 8px;
    color: var(--primary-color);
}

.news-featured-image {
    margin-bottom: 40px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.news-featured-image img {
    width: 100%;
    height: auto;
    display: block;
}

.news-body {
    color: var(--text-color);
    line-height: 1.8;
    font-size: 1.1rem;
}

.news-body p {
    margin-bottom: 25px;
}

.news-body h2 {
    margin: 40px 0 20px;
    color: var(--dark-color);
    font-size: 1.8rem;
}

.news-body h3 {
    margin: 30px 0 15px;
    color: var(--dark-color);
    font-size: 1.5rem;
}

.news-body ul, 
.news-body ol {
    margin-bottom: 25px;
    padding-left: 20px;
}

.news-body li {
    margin-bottom: 10px;
}

.news-body blockquote {
    border-left: 4px solid var(--primary-color);
    padding-left: 20px;
    font-style: italic;
    margin: 30px 0;
    color: var(--light-text-color);
}

.news-navigation {
    display: flex;
    justify-content: space-between;
    margin-top: 60px;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

.news-navigation a {
    display: flex;
    align-items: center;
    color: var(--dark-color);
    font-weight: 500;
    transition: color 0.3s ease;
}

.news-navigation a:hover {
    color: var(--primary-color);
}

.news-navigation .prev-news i {
    margin-right: 10px;
}

.news-navigation .next-news {
    text-align: right;
}

.news-navigation .next-news i {
    margin-left: 10px;
}

.news-related {
    margin-top: 80px;
}

.news-related h3 {
    font-size: 1.8rem;
    color: var(--dark-color);
    margin-bottom: 30px;
    text-align: center;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .news-grid,
    .news-list-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .hero {
        padding: 120px 0 80px;
    }
    
    .hero .container {
        flex-direction: column;
    }
    
    .hero-content {
        padding-right: 0;
        margin-bottom: 50px;
        text-align: center;
    }
    
    .cta-buttons {
        justify-content: center;
    }
    
    .challenges-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .solution-content {
        flex-direction: column;
    }
    
    .solution-text {
        margin-bottom: 50px;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-content {
        flex-direction: column;
    }
    
    .contact-info {
        margin-bottom: 50px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 30px;
    }
    
    .footer-links {
        flex-wrap: wrap;
        gap: 30px;
    }
    
    .news-grid,
    .news-list-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .news-filters {
        flex-direction: column;
        gap: 20px;
        align-items: flex-start;
    }
    
    .news-header h1 {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .solution-points {
        grid-template-columns: 1fr;
    }
    
    .cases-slider {
        flex-direction: column;
    }
    
    .case-card {
        margin-bottom: 30px;
    }
    
    .news-meta {
        flex-direction: column;
        gap: 10px;
    }
    
    .news-navigation {
        flex-direction: column;
        gap: 20px;
    }
    
    .news-navigation .next-news {
        text-align: left;
    }
}

@media (max-width: 576px) {
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .challenges-grid,
    .features-grid,
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: 10px;
    }
    
    .cta-buttons a {
        width: 100%;
        text-align: center;
    }
    
    .footer-column {
        width: 100%;
        margin-bottom: 30px;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }
    
    .news-grid,
    .news-list-grid {
        grid-template-columns: 1fr;
    }
    
    .news-filters .filter-categories {
        flex-wrap: wrap;
    }
}