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

body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

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

/* 导航栏 */
.header {
    background-color: #0a192f;
    color: #fff;
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

.logo a {
    font-size: 24px;
    font-weight: bold;
    color: #64ffda;
    text-decoration: none;
}

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

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

.nav a {
    color: #ccd6f6;
    text-decoration: none;
    font-size: 16px;
    transition: color 0.3s ease;
}

.nav a:hover,
.nav a.active {
    color: #64ffda;
}

.header-btn {
    display: flex;
    gap: 15px;
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 4px;
    text-decoration: none;
    font-size: 14px;
    font-weight: bold;
    transition: all 0.3s ease;
}

.register-btn {
    background-color: transparent;
    color: #64ffda;
    border: 1px solid #64ffda;
}

.register-btn:hover {
    background-color: rgba(100, 255, 218, 0.1);
}

.download-btn {
    background-color: #64ffda;
    color: #0a192f;
}

.download-btn:hover {
    background-color: #4fd1c5;
}

/* 面包屑导航 */
.breadcrumb {
    background-color: #fff;
    padding: 15px 0;
    border-bottom: 1px solid #eaeaea;
}

.breadcrumb a {
    color: #64ffda;
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

/* 轮播图 */
.banner {
    background: linear-gradient(135deg, #0a192f 0%, #172a45 100%);
    color: #fff;
    padding: 100px 0;
    text-align: center;
}

.banner h1 {
    font-size: 48px;
    margin-bottom: 20px;
    color: #64ffda;
}

.banner p {
    font-size: 20px;
    margin-bottom: 40px;
    color: #ccd6f6;
}

.banner-btn {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.primary-btn {
    background-color: #64ffda;
    color: #0a192f;
    border: 1px solid #64ffda;
}

.primary-btn:hover {
    background-color: #4fd1c5;
}

.secondary-btn {
    background-color: transparent;
    color: #64ffda;
    border: 1px solid #64ffda;
}

.secondary-btn:hover {
    background-color: rgba(100, 255, 218, 0.1);
}

/* 功能介绍 */
.features {
    padding: 80px 0;
    background-color: #fff;
}

.features h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
    color: #0a192f;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.feature-item {
    text-align: center;
    padding: 30px;
    background-color: #f8f9fa;
    border-radius: 8px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background-color: #0a192f;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon i {
    font-size: 32px;
    color: #64ffda;
}

.feature-item h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #0a192f;
}

.feature-item p {
    color: #666;
}

/* 产品优势 */
.advantages {
    padding: 80px 0;
    background-color: #f5f5f5;
}

.advantages h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
    color: #0a192f;
}

.advantages-content {
    display: flex;
    align-items: center;
    gap: 60px;
}

.advantages-left {
    flex: 1;
}

.advantages-left img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.advantages-right {
    flex: 1;
}

.advantages-right h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: #0a192f;
}

.advantages-right p {
    margin-bottom: 20px;
    color: #666;
}

/* 新闻资讯 */
.news {
    padding: 80px 0;
    background-color: #fff;
}

.news h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
    color: #0a192f;
}

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

.news-item {
    background-color: #f8f9fa;
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.news-item a {
    text-decoration: none;
    color: #333;
    display: block;
}

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

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

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

.news-content {
    padding: 20px;
}

.news-content h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #0a192f;
}

.news-content p {
    margin-bottom: 15px;
    color: #666;
}

.news-date {
    font-size: 14px;
    color: #999;
}

.news-more {
    text-align: center;
    margin-top: 40px;
}

/* 新闻列表 */
.news-list {
    padding: 80px 0;
    background-color: #fff;
}

.news-list h1 {
    font-size: 36px;
    margin-bottom: 40px;
    color: #0a192f;
}

.news-list .news-grid {
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
}

.news-list .news-item {
    display: flex;
    gap: 20px;
}

.news-list .news-img {
    flex: 1;
    height: 150px;
}

.news-list .news-content {
    flex: 2;
    padding: 15px 0;
}

/* 分页 */
.pagination {
    text-align: center;
    margin-top: 40px;
}

.pagination a {
    display: inline-block;
    padding: 10px 15px;
    margin: 0 5px;
    background-color: #f8f9fa;
    color: #333;
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.pagination a:hover,
.pagination a.active {
    background-color: #64ffda;
    color: #0a192f;
}

/* 客户评价 */
.testimonials {
    padding: 80px 0;
    background-color: #f5f5f5;
}

.testimonials h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
    color: #0a192f;
}

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

.testimonial-item {
    background-color: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.testimonial-content p {
    margin-bottom: 20px;
    color: #666;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-weight: bold;
    color: #0a192f;
}

.author-title {
    font-size: 14px;
    color: #999;
}

/* 下载区域 */
.download {
    padding: 80px 0;
    background: linear-gradient(135deg, #0a192f 0%, #172a45 100%);
    color: #fff;
    text-align: center;
}

.download h2 {
    font-size: 36px;
    margin-bottom: 20px;
    color: #64ffda;
}

.download p {
    font-size: 18px;
    margin-bottom: 40px;
    color: #ccd6f6;
}

.download-btn-group {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
}

/* 页脚 */
.footer {
    background-color: #0a192f;
    color: #ccd6f6;
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-item h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: #64ffda;
}

.footer-item p {
    margin-bottom: 10px;
}

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

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

.footer-item a {
    color: #ccd6f6;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-item a:hover {
    color: #64ffda;
}

.footer-bottom {
    border-top: 1px solid #172a45;
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    color: #ccd6f6;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #64ffda;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .advantages-content {
        flex-direction: column;
        text-align: center;
    }
    
    .advantages-left,
    .advantages-right {
        flex: 100%;
    }
    
    .news-list .news-item {
        flex-direction: column;
    }
    
    .news-list .news-img {
        flex: 100%;
        height: 200px;
    }
    
    .news-list .news-content {
        flex: 100%;
        padding: 20px;
    }
}

@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 20px;
    }
    
    .nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .nav li {
        margin: 0 15px;
    }
    
    .banner h1 {
        font-size: 36px;
    }
    
    .banner p {
        font-size: 16px;
    }
    
    .banner-btn {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}

@media (max-width: 576px) {
    .banner {
        padding: 60px 0;
    }
    
    .banner h1 {
        font-size: 28px;
    }
    
    .features,
    .advantages,
    .news,
    .testimonials,
    .download {
        padding: 60px 0;
    }
    
    .features h2,
    .advantages h2,
    .news h2,
    .testimonials h2,
    .download h2 {
        font-size: 28px;
    }
    
    .news-list h1 {
        font-size: 28px;
    }
    
    .download-btn-group {
        flex-direction: column;
        align-items: center;
    }
}