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

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

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

/* 头部样式 */
header {
    background: linear-gradient(135deg, #1a5fb4, #2c8cff);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo {
    color: white;
    font-size: 24px;
    font-weight: bold;
}

/* 导航栏样式 - 加大加粗字体 */
nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 25px;
}

nav ul li a {
    color: white;
    text-decoration: none;
    font-size: 18px;
    /* 加大字体 */
    font-weight: bold;
    /* 加粗字体 */
    padding: 10px 15px;
    border-radius: 5px;
    transition: all 0.3s ease;
}

nav ul li a:hover,
nav ul li a.active {
    background-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* 主体内容样式 */
main {
    min-height: calc(100vh - 140px);
}

/* 页面头部 */
.page-header {
    background: linear-gradient(rgba(26, 95, 180, 0.8), rgba(44, 140, 255, 0.9)), url('https://images.unsplash.com/photo-1494256997604-768d1f608cac?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center;
    color: white;
    text-align: center;
    padding: 80px 20px;
}

.page-header h2 {
    font-size: 42px;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    color: #fff !important;
}

.page-header p {
    font-size: 22px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

/* 英雄区域 */
.hero {
    background: linear-gradient(rgba(26, 95, 180, 0.8), rgba(44, 140, 255, 0.9)), url('https://images.unsplash.com/photo-1523580494863-6f3031224c94?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center;
    color: white;
    text-align: center;
    padding: 100px 20px;
}

.hero h2 {
    font-size: 42px;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    color: #fff !important;
}

.hero p {
    font-size: 22px;
    margin-bottom: 30px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.btn {
    display: inline-block;
    background-color: #ff6b35;
    color: white;
    padding: 15px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: bold;
    font-size: 18px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.btn:hover {
    background-color: #e55a2b;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

/* 内容区域通用样式 */
section {
    padding: 80px 0;
}

section h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: #1a5fb4;
    position: relative;
}

section h2::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: #ff6b35;
    margin: 15px auto;
    border-radius: 2px;
}

/* 公司简介 */
.about {
    background-color: #f8f9fa;
}

.about p {
    font-size: 18px;
    margin-bottom: 20px;
    text-align: center;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* 特色优势 */
.features {
    background: white;
}

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

.feature-item {
    text-align: center;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

.feature-item h3 {
    color: #1a5fb4;
    margin-bottom: 15px;
    font-size: 22px;
}

/* 新闻动态 */
.news {
    background-color: #f8f9fa;
}

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

.news-item {
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

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

.news-item h3 {
    color: #1a5fb4;
    margin-bottom: 10px;
    font-size: 20px;
}

.date {
    color: #ff6b35;
    font-weight: bold;
    margin-bottom: 15px;
}

/* 业务范围 */
.services {
    background: white;
}

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

.service-item {
    text-align: center;
    padding: 30px;
    border-radius: 10px;
    background: linear-gradient(135deg, #e3f2fd, #bbdefb);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.service-item h3 {
    color: #1a5fb4;
    margin-bottom: 15px;
    font-size: 22px;
}

/* 成功案例 */
.cases {
    background-color: #f8f9fa;
}

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

.case-item {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border-left: 5px solid #ff6b35;
}

.case-item h3 {
    color: #1a5fb4;
    margin-bottom: 15px;
    font-size: 20px;
}

/* 人才发展 */
.careers {
    background: linear-gradient(135deg, #1a5fb4, #2c8cff);
    color: white;
    text-align: center;
}

.careers h2 {
    color: white;
}

.careers h2::after {
    background: #ff6b35;
}

.careers p {
    font-size: 18px;
    margin-bottom: 20px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* 新闻内容 */
.news-content .news-article {
    background: white;
    margin-bottom: 40px;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.news-article h3 {
    color: #1a5fb4;
    font-size: 28px;
    margin-bottom: 15px;
}

.article-meta {
    color: #777;
    margin-bottom: 25px;
    font-size: 14px;
}

.article-meta .date {
    margin-right: 20px;
}

.article-content p {
    margin-bottom: 20px;
    font-size: 16px;
    line-height: 1.8;
}

/* 产品中心 */
.products-content .product-category {
    margin-bottom: 50px;
}

.product-category h3 {
    text-align: left;
    font-size: 28px;
    margin-bottom: 30px;
    color: #1a5fb4;
}

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

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

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

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

.product-info {
    padding: 20px;
}

.product-info h4 {
    color: #1a5fb4;
    font-size: 20px;
    margin-bottom: 15px;
}

.product-info p {
    margin-bottom: 15px;
    color: #666;
}

.product-info ul {
    padding-left: 20px;
    margin-bottom: 15px;
}

.product-info li {
    margin-bottom: 8px;
}

/* 服务中心 */
.service-intro {
    text-align: center;
    margin-bottom: 50px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.service-intro p {
    font-size: 18px;
    line-height: 1.8;
}

.service-category {
    margin-bottom: 40px;
}

.service-category h3 {
    font-size: 28px;
    color: #1a5fb4;
    margin-bottom: 25px;
    text-align: center;
}

.service-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.service-item {
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

.service-item h4 {
    color: #1a5fb4;
    font-size: 20px;
    margin-bottom: 15px;
}

.service-commitment {
    margin-top: 50px;
}

.service-commitment h3 {
    text-align: center;
    font-size: 28px;
    margin-bottom: 30px;
    color: #1a5fb4;
}

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

.commitment-item {
    background: linear-gradient(135deg, #e3f2fd, #bbdefb);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
}

.commitment-item h4 {
    color: #1a5fb4;
    font-size: 20px;
    margin-bottom: 15px;
}

/* 知识库 */
.knowledge-search {
    display: flex;
    max-width: 600px;
    margin: 0 auto 50px;
}

.knowledge-search input {
    flex: 1;
    padding: 15px;
    border: 2px solid #ddd;
    border-radius: 30px 0 0 30px;
    font-size: 16px;
}

.knowledge-search button {
    background: #1a5fb4;
    color: white;
    border: none;
    padding: 15px 25px;
    border-radius: 0 30px 30px 0;
    cursor: pointer;
    font-size: 16px;
    font-weight: bold;
}

.knowledge-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.category {
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.category h3 {
    color: #1a5fb4;
    margin-bottom: 20px;
    font-size: 22px;
}

.category ul {
    list-style-type: none;
}

.category li {
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid #eee;
}

.category a {
    color: #333;
    text-decoration: none;
    transition: color 0.3s ease;
}

.category a:hover {
    color: #1a5fb4;
}

.knowledge-featured h3 {
    text-align: center;
    font-size: 28px;
    margin-bottom: 30px;
    color: #1a5fb4;
}

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

.featured-item {
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.featured-item h4 {
    color: #1a5fb4;
    margin-bottom: 15px;
    font-size: 20px;
}

.featured-item p {
    margin-bottom: 20px;
    color: #666;
}

.download {
    display: inline-block;
    background: #ff6b35;
    color: white;
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 14px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.download:hover {
    background: #e55a2b;
}

/* 常见问题 */
.faq-search {
    display: flex;
    max-width: 600px;
    margin: 0 auto 50px;
}

.faq-search input {
    flex: 1;
    padding: 15px;
    border: 2px solid #ddd;
    border-radius: 30px 0 0 30px;
    font-size: 16px;
}

.faq-search button {
    background: #1a5fb4;
    color: white;
    border: none;
    padding: 15px 25px;
    border-radius: 0 30px 30px 0;
    cursor: pointer;
    font-size: 16px;
    font-weight: bold;
}

.faq-category {
    margin-bottom: 40px;
}

.faq-category h3 {
    font-size: 28px;
    color: #1a5fb4;
    margin-bottom: 25px;
    text-align: center;
}

.faq-item {
    background: white;
    margin-bottom: 15px;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background: #f8f9fa;
    cursor: pointer;
}

.faq-question h4 {
    color: #1a5fb4;
    font-size: 18px;
    margin: 0;
}

.faq-toggle {
    font-size: 24px;
    font-weight: bold;
    color: #ff6b35;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.faq-answer {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-answer p,
.faq-answer ol,
.faq-answer ul {
    margin-bottom: 15px;
    line-height: 1.8;
}

.faq-answer ol,
.faq-answer ul {
    padding-left: 20px;
}

/* 联系方式 */
.contact-intro {
    text-align: center;
    margin-bottom: 50px;
    margin-left: auto;
    margin-right: auto;
}

.contact-intro h3 {
    font-size: 28px;
    color: #1a5fb4;
    margin-bottom: 20px;
}

.contact-intro p {
    font-size: 18px;
    line-height: 1.8;
}

.departments {
    margin-bottom: 50px;
}

.department-category {
    margin-bottom: 40px;
}

.department-category h3 {
    font-size: 28px;
    color: #1a5fb4;
    margin-bottom: 25px;
    text-align: center;
}

.contact-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.contact-item {
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s ease;
}

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

.contact-item h4 {
    color: #1a5fb4;
    font-size: 20px;
    margin-bottom: 15px;
}

.contact-person {
    font-weight: bold;
    color: #333;
}

.contact-email {
    color: #1a5fb4;
    font-weight: bold;
}

.contact-note {
    background: #e3f2fd;
    padding: 30px;
    border-radius: 10px;
    max-width: 800px;
    margin: 0 auto;
}

.contact-note h3 {
    text-align: center;
    font-size: 24px;
    color: #1a5fb4;
    margin-bottom: 20px;
}

.contact-note ul {
    padding-left: 20px;
}

.contact-note li {
    margin-bottom: 15px;
    line-height: 1.6;
}

/* 页脚样式 */
footer {
    background: #333;
    color: white;
    text-align: center;
    padding: 30px 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
    header .container {
        flex-direction: column;
        padding: 15px;
    }

    .logo {
        margin-bottom: 15px;
    }

    nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }

    nav ul li {
        margin: 5px;
    }

    .hero,
    .page-header {
        padding: 60px 20px;
    }

    .hero h2,
    .page-header h2 {
        font-size: 32px;
    }

    .hero p,
    .page-header p {
        font-size: 18px;
    }

    section {
        padding: 50px 0;
    }

    section h2 {
        font-size: 28px;
    }

    .knowledge-search,
    .faq-search {
        flex-direction: column;
    }

    .knowledge-search input,
    .faq-search input {
        border-radius: 30px;
        margin-bottom: 10px;
    }

    .knowledge-search button,
    .faq-search button {
        border-radius: 30px;
    }
}