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

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
}

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

/* 导航栏样式 */
.navbar {
    background: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.logo h1 {
    color: #2c3e50;
    font-size: 1.8rem;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li a {
    color: #2c3e50;
    text-decoration: none;
    padding: 0.5rem 1rem;
    transition: color 0.3s ease;
}

.nav-links li a:hover,
.nav-links li a.active {
    color: #3498db;
}

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: #2c3e50;
    margin: 2px 0;
    transition: 0.3s;
}

/* 首页横幅样式 */
.hero {
    background: linear-gradient(rgba(44, 62, 80, 0.8), rgba(44, 62, 80, 0.8)), url('../images/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    height: 100vh;
    display: flex;
    align-items: center;
    text-align: center;
    color: #fff;
    padding-top: 80px;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background: #3498db;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    transition: background 0.3s ease;
}

.cta-button:hover {
    background: #2980b9;
}

/* 公司简介部分样式 */
.about-preview {
    padding: 5rem 0;
    background: #f9f9f9;
}

.about-preview h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: #2c3e50;
}

.about-content {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.about-text {
    flex: 1;
}

.about-image {
    flex: 1;
}

.about-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.read-more {
    display: inline-block;
    color: #3498db;
    text-decoration: none;
    margin-top: 1rem;
    font-weight: bold;
}

/* 新闻动态样式 */
.news-preview {
    padding: 5rem 0;
}

.news-preview h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: #2c3e50;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.news-card {
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

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

.news-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.news-content {
    padding: 1.5rem;
}

.news-content h3 {
    margin-bottom: 0.5rem;
    color: #2c3e50;
}

.news-content p {
    color: #7f8c8d;
    margin-bottom: 1rem;
}

/* 页脚样式 */
.footer {
    background: #2c3e50;
    color: #fff;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    margin-bottom: 1.5rem;
    color: #3498db;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

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

.footer-section a:hover {
    color: #3498db;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    font-size: 1.5rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .about-content {
        flex-direction: column;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero p {
        font-size: 1rem;
    }
}

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

.hero h1,
.hero p,
.about-content,
.news-card {
    animation: fadeIn 1s ease-out;
}

/* 页面标题样式 */
.page-header {
    background: linear-gradient(rgba(44, 62, 80, 0.8), rgba(44, 62, 80, 0.8)), url('../images/page-header-bg.jpg');
    background-size: cover;
    background-position: center;
    height: 300px;
    display: flex;
    align-items: center;
    text-align: center;
    color: #fff;
    margin-top: 80px;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.page-header p {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* 关于我们页面样式 */
.about-section {
    padding: 5rem 0;
    background: #fff;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-content h2 {
    color: #2c3e50;
    margin-bottom: 1.5rem;
    font-size: 2rem;
}

.about-content p {
    margin-bottom: 1.5rem;
    color: #666;
    line-height: 1.8;
}

.company-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.stat-item {
    text-align: center;
    padding: 2rem;
    background: #f8f9fa;
    border-radius: 10px;
    transition: transform 0.3s ease;
}

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

.stat-item h3 {
    color: #3498db;
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.stat-item p {
    color: #666;
    margin: 0;
}

/* 发展历程样式 */
.history-section {
    padding: 5rem 0;
    background: #f9f9f9;
}

.history-section h2 {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 3rem;
    font-size: 2rem;
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: #3498db;
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    width: 50%;
    padding-right: 2rem;
}

.timeline-item:nth-child(even) {
    margin-left: 50%;
    padding-right: 0;
    padding-left: 2rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    right: -6px;
    top: 0;
    width: 12px;
    height: 12px;
    background: #3498db;
    border-radius: 50%;
}

.timeline-item:nth-child(even)::before {
    right: auto;
    left: -6px;
}

.year {
    font-size: 1.5rem;
    color: #3498db;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.timeline-item .content {
    background: #fff;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.timeline-item .content h3 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.timeline-item .content p {
    color: #666;
    margin: 0;
}

/* 核心优势样式 */
.advantages-section {
    padding: 5rem 0;
    background: #fff;
}

.advantages-section h2 {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 3rem;
    font-size: 2rem;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.advantage-card {
    text-align: center;
    padding: 2rem;
    background: #f8f9fa;
    border-radius: 10px;
    transition: transform 0.3s ease;
}

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

.advantage-card i {
    font-size: 2.5rem;
    color: #3498db;
    margin-bottom: 1rem;
}

.advantage-card h3 {
    color: #2c3e50;
    margin-bottom: 1rem;
}

.advantage-card p {
    color: #666;
    margin: 0;
}

/* 响应式设计补充 */
@media (max-width: 768px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .timeline::before {
        left: 0;
    }

    .timeline-item {
        width: 100%;
        padding-left: 2rem;
        padding-right: 0;
        margin-left: 0;
    }

    .timeline-item:nth-child(even) {
        margin-left: 0;
        padding-left: 2rem;
    }

    .timeline-item::before {
        left: -6px;
    }

    .timeline-item:nth-child(even)::before {
        left: -6px;
    }

    .company-stats {
        grid-template-columns: 1fr;
    }
}

/* 新闻页面样式 */
.news-section {
    padding: 5rem 0;
    background: #f9f9f9;
}

.news-container {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 3rem;
}

/* 新闻侧边栏样式 */
.news-sidebar {
    background: #fff;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    height: fit-content;
}

.news-sidebar h3 {
    color: #2c3e50;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.news-categories {
    list-style: none;
}

.news-categories li {
    margin-bottom: 0.5rem;
}

.news-categories a {
    display: block;
    padding: 0.8rem 1rem;
    color: #666;
    text-decoration: none;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.news-categories a:hover,
.news-categories a.active {
    background: #3498db;
    color: #fff;
}

/* 新闻列表样式 */
.news-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.news-item {
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    display: grid;
    grid-template-columns: 300px 1fr;
    transition: transform 0.3s ease;
}

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

.news-image {
    overflow: hidden;
}

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

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

.news-content {
    padding: 2rem;
}

.news-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.news-category {
    background: #3498db;
    color: #fff;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.9rem;
}

.news-date {
    color: #666;
    font-size: 0.9rem;
}

.news-content h2 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.news-content p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

/* 分页样式 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
}

.pagination a {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: #fff;
    color: #2c3e50;
    text-decoration: none;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.pagination a:hover,
.pagination a.active {
    background: #3498db;
    color: #fff;
}

/* 响应式设计补充 */
@media (max-width: 992px) {
    .news-container {
        grid-template-columns: 1fr;
    }

    .news-sidebar {
        position: sticky;
        top: 100px;
    }
}

@media (max-width: 768px) {
    .news-item {
        grid-template-columns: 1fr;
    }

    .news-image {
        height: 200px;
    }

    .news-content {
        padding: 1.5rem;
    }

    .news-content h2 {
        font-size: 1.3rem;
    }
}

/* 企业文化页面样式 */
.culture-section {
    padding: 5rem 0;
}

/* 文化板块通用样式 */
.culture-block {
    padding: 5rem 0;
}

.culture-block:nth-child(even) {
    background: #f9f9f9;
}

.culture-block h2 {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 3rem;
    font-size: 2rem;
}

/* 企业使命和愿景样式 */
.culture-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.culture-content.reverse {
    direction: rtl;
}

.culture-content.reverse .culture-text {
    direction: ltr;
}

.culture-text h2 {
    text-align: left;
    margin-bottom: 1.5rem;
    color: #2c3e50;
    font-size: 2rem;
}

.culture-text p {
    color: #666;
    margin-bottom: 1rem;
    line-height: 1.8;
}

.culture-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

/* 核心价值观样式 */
.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.value-card {
    background: #fff;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

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

.value-card i {
    font-size: 2.5rem;
    color: #3498db;
    margin-bottom: 1rem;
}

.value-card h3 {
    color: #2c3e50;
    margin-bottom: 1rem;
}

.value-card p {
    color: #666;
    margin: 0;
}

/* 团队风采样式 */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.team-member {
    text-align: center;
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.team-member:hover {
    transform: translateY(-5px);
}

.team-member img {
    width: 100%;
    height: 300px;
    object-fit: cover;
}

.team-member h3 {
    color: #2c3e50;
    margin: 1rem 0 0.5rem;
}

.team-member p {
    color: #666;
    margin-bottom: 1rem;
}

/* 文化活动样式 */
.activities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.activity-card {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.activity-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.activity-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1.5rem;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    color: #fff;
}

.activity-content h3 {
    margin-bottom: 0.5rem;
}

.activity-content p {
    margin: 0;
    opacity: 0.9;
}

/* 响应式设计补充 */
@media (max-width: 992px) {
    .culture-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .culture-content.reverse {
        direction: ltr;
    }
}

@media (max-width: 768px) {
    .culture-block {
        padding: 3rem 0;
    }

    .culture-text h2 {
        font-size: 1.8rem;
    }

    .team-member img {
        height: 250px;
    }

    .activity-card img {
        height: 200px;
    }
}