* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    color: #333;
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* 导航栏样式 */
header {
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    color: #4a6cf7;
    text-decoration: none;
    display: flex;
    align-items: center;
}

.logo i {
    margin-right: 10px;
}

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

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

.nav-links a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: #4a6cf7;
}

.nav-active {
    color: #4a6cf7 !important;
}

.nav-download {
    background: #4a6cf7;
    color: white;
    padding: 10px 20px;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s;
}

.nav-download:hover {
    background: #3b5be3;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(74, 108, 247, 0.3);
    color: white;
}

.menu-toggle {
    display: none;
    font-size: 24px;
    cursor: pointer;
}

/* 页面标题区域 */
.page-header {
    padding: 150px 0 60px;
    background: linear-gradient(135deg, #f5f7ff 0%, #e3e6ff 100%);
}

.page-header h1 {
    font-size: 2.8rem;
    color: #1d2a6b;
    margin-bottom: 20px;
    line-height: 1.3;
}

.article-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 10px;
}

.meta-item {
    display: flex;
    align-items: center;
    margin-right: 25px;
    color: #666;
    font-size: 0.95rem;
}

.meta-item i {
    margin-right: 8px;
    color: #4a6cf7;
}

.breadcrumb {
    display: flex;
    list-style: none;
    margin-top: 20px;
}

.breadcrumb li {
    margin-right: 10px;
    font-size: 1rem;
}

.breadcrumb li:not(:last-child)::after {
    content: ">";
    margin-left: 10px;
    color: #666;
}

.breadcrumb a {
    color: #4a6cf7;
    text-decoration: none;
}

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

/* 文章内容样式 */
.article-content {
    padding: 60px 0;
    background: white;
}

.article-container {
    max-width: 800px;
    margin: 0 auto;
}

.article-image {
    width: 100%;
    border-radius: 15px;
    margin-bottom: 40px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.article-body {
    font-size: 1.1rem;
    line-height: 1.8;
}

.article-body h2 {
    font-size: 1.8rem;
    color: #1d2a6b;
    margin: 40px 0 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #e8eeff;
}

.article-body h3 {
    font-size: 1.4rem;
    color: #1d2a6b;
    margin: 30px 0 15px;
}

.article-body p {
    margin-bottom: 20px;
    color: #444;
}

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

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

.article-body blockquote {
    border-left: 4px solid #4a6cf7;
    padding-left: 20px;
    margin: 30px 0;
    font-style: italic;
    color: #555;
    background: #f8f9ff;
    padding: 20px;
    border-radius: 0 10px 10px 0;
}

.article-body img {
    max-width: 100%;
    border-radius: 10px;
    margin: 20px 0;
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    margin: 40px 0 20px;
}

.tag {
    background: #e8eeff;
    color: #4a6cf7;
    padding: 5px 15px;
    border-radius: 50px;
    margin-right: 10px;
    margin-bottom: 10px;
    font-size: 0.9rem;
    font-weight: 500;
}

.article-share {
    display: flex;
    align-items: center;
    margin: 40px 0;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.share-text {
    margin-right: 15px;
    font-weight: 600;
    color: #1d2a6b;
}

.share-buttons {
    display: flex;
}

.share-button {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f5f7ff;
    color: #4a6cf7;
    margin-right: 10px;
    transition: all 0.3s;
}

.share-button:hover {
    background: #4a6cf7;
    color: white;
    transform: translateY(-3px);
}

/* 导航按钮 */
.article-navigation {
    display: flex;
    justify-content: space-between;
    margin-top: 50px;
    padding-top: 30px;
    border-top: 1px solid #eee;
}

.nav-button {
    display: flex;
    align-items: center;
    padding: 15px 25px;
    background: #f8f9ff;
    border-radius: 10px;
    text-decoration: none;
    color: #1d2a6b;
    transition: all 0.3s;
    max-width: 45%;
}

.nav-button:hover {
    background: #4a6cf7;
    color: white;
    transform: translateY(-3px);
}

.nav-button i {
    margin: 0 10px;
}

.nav-prev i {
    margin-left: 0;
}

.nav-next i {
    margin-right: 0;
}

.nav-button span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* 相关文章 */
.related-articles {
    padding: 60px 0;
    background: linear-gradient(135deg, #f5f7ff 0%, #e3e6ff 100%);
}

.section-title {
    text-align: center;
    margin-bottom: 40px;
}

.section-title h2 {
    font-size: 2.2rem;
    color: #1d2a6b;
    margin-bottom: 15px;
}

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

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

.article-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s;
}

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

.article-card-image {
    height: 180px;
    overflow: hidden;
}

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

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

.article-card-content {
    padding: 20px;
}

.article-card-date {
    color: #4a6cf7;
    font-size: 0.9rem;
    margin-bottom: 10px;
    display: block;
}

.article-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: #1d2a6b;
}

.article-card p {
    color: #666;
    margin-bottom: 15px;
    font-size: 0.95rem;
}

.article-card-link {
    color: #4a6cf7;
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    font-size: 0.95rem;
}

.article-card-link i {
    margin-left: 5px;
    transition: transform 0.3s;
}

.article-card-link:hover i {
    transform: translateX(5px);
}

/* 新闻列表样式 */
.news-list {
    padding: 80px 0;
    background: white;
}

.news-filters {
    display: flex;
    justify-content: center;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 20px;
    margin: 0 10px 10px;
    border: none;
    background: #f8f9ff;
    color: #666;
    border-radius: 50px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s;
}

.filter-btn.active, .filter-btn:hover {
    background: #4a6cf7;
    color: white;
}

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

.news-item {
    background: #f8f9ff;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s;
}

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

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

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

.news-item:hover .news-image img {
    transform: scale(1.05);
}

.news-content {
    padding: 25px;
}

.news-date {
    color: #4a6cf7;
    font-size: 0.9rem;
    margin-bottom: 10px;
    display: block;
}

.news-item h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: #1d2a6b;
}

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

.news-link {
    color: #4a6cf7;
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
}

.news-link i {
    margin-left: 5px;
    transition: transform 0.3s;
}

.news-link:hover i {
    transform: translateX(5px);
}

/* 分页样式 */
.pagination {
    display: flex;
    justify-content: center;
    margin-top: 50px;
}

.page-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 5px;
    border-radius: 10px;
    background: #f8f9ff;
    color: #666;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
}

.page-btn.active, .page-btn:hover {
    background: #4a6cf7;
    color: white;
}

.page-btn i {
    font-size: 14px;
}

/* 英雄区域样式 */
.hero {
    padding: 150px 0 100px;
    background: linear-gradient(135deg, #f5f7ff 0%, #e3e6ff 100%);
    position: relative;
    overflow: hidden;
}

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

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

.hero-text h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    color: #1d2a6b;
}

.hero-text p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: #555;
}

.hero-image {
    flex: 1;
    text-align: center;
    position: relative;
}

.hero-image img {
    max-width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
    transform: perspective(800px) rotateY(-10deg);
    transition: transform 0.5s;
}

.hero-image img:hover {
    transform: perspective(800px) rotateY(0);
}

.cta-buttons {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.btn {
    display: inline-flex;
    align-items: center;
    padding: 15px 30px;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
}

.btn-primary {
    background: #4a6cf7;
    color: white;
}

.btn-primary:hover {
    background: #3b5be3;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(74, 108, 247, 0.3);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.8);
    color: #4a6cf7;
    border: 2px solid #4a6cf7;
}

.btn-secondary:hover {
    background: #4a6cf7;
    color: white;
    transform: translateY(-3px);
}

.btn i {
    margin-right: 8px;
}

/* 特性部分样式 */
.features {
    padding: 100px 0;
    background: white;
}

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

.feature-card {
    background: #f8f9ff;
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: #e8eeff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: #4a6cf7;
    font-size: 28px;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #1d2a6b;
}

/* 新闻资讯部分 */
.news {
    padding: 100px 0;
    background: linear-gradient(135deg, #e3e6ff 0%, #f5f7ff 100%);
}

.news-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s;
}

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

/* 评价部分样式 */
.testimonials {
    padding: 100px 0;
    background: white;
}

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

.testimonial-card {
    background: #f8f9ff;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.testimonial-text {
    font-style: italic;
    margin-bottom: 20px;
    color: #555;
}

.testimonial-author {
    display: flex;
    align-items: center;
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: #4a6cf7;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    margin-right: 15px;
}

.author-info h4 {
    color: #1d2a6b;
    margin-bottom: 5px;
}

/* 下载部分样式 */
.download {
    padding: 100px 0;
    text-align: center;
    background: linear-gradient(135deg, #f5f7ff 0%, #e3e6ff 100%);
}

.download-content {
    max-width: 700px;
    margin: 0 auto;
}

.download-badges {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
}

.badge {
    display: inline-flex;
    align-items: center;
    background: #1d2a6b;
    color: white;
    padding: 12px 25px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 500;
    transition: transform 0.3s;
}

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

.badge i {
    font-size: 24px;
    margin-right: 10px;
}

/* 页脚样式 */
footer {
    background: #1d2a6b;
    color: white;
    padding: 70px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 50px;
}

.footer-column h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-column h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: #4a6cf7;
}

.footer-column p {
    margin-bottom: 20px;
    opacity: 0.8;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: white;
    opacity: 0.8;
    text-decoration: none;
    transition: opacity 0.3s;
}

.footer-links a:hover {
    opacity: 1;
    text-decoration: underline;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    transition: background 0.3s;
}

.social-links a:hover {
    background: #4a6cf7;
}

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.7;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .article-container {
        padding: 0 20px;
    }
    .news-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
    .hero-content {
        flex-direction: column;
        text-align: center;
    }
    .hero-text {
        padding-right: 0;
        margin-bottom: 50px;
    }
    .cta-buttons {
        justify-content: center;
    }
    .hero-image img {
        transform: none;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }
    .nav-links {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: white;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        transition: left 0.3s;
        padding: 20px;
    }
    .nav-links.active {
        left: 0;
    }
    .nav-links li {
        margin: 15px 0;
    }
    .page-header h1 {
        font-size: 2rem;
    }
    .article-meta {
        flex-direction: column;
        align-items: flex-start;
    }
    .meta-item {
        margin-bottom: 10px;
    }
    .article-navigation {
        flex-direction: column;
    }
    .nav-button {
        max-width: 100%;
        margin-bottom: 15px;
    }
    .articles-grid {
        grid-template-columns: 1fr;
    }
    .news-grid {
        grid-template-columns: 1fr;
    }
    .hero-text h1 {
        font-size: 2.5rem;
    }
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    .download-badges {
        flex-direction: column;
        align-items: center;
    }
}

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

.fade-in {
    animation: fadeIn 1s ease forwards;
}

.delay-1 {
    animation-delay: 0.2s;
}

.delay-2 {
    animation-delay: 0.4s;
}

.delay-3 {
    animation-delay: 0.6s;
}