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

/* Breadcrumb */
.breadcrumb {
    padding: 1rem 0;
    background-color: white;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.breadcrumb-content {
    display: flex;
    list-style: none;
}

.breadcrumb-content li {
    margin-right: 0.5rem;
    display: flex;
    align-items: center;
}

.breadcrumb-content li:after {
    content: '/';
    margin-left: 0.5rem;
    color: var(--text-light);
}

.breadcrumb-content li:last-child:after {
    content: '';
}

.breadcrumb-content a {
    color: var(--primary);
    text-decoration: none;
}

.breadcrumb-content span {
    color: var(--text-light);
}

/* Main Content */
.main-content {

}

.page-header {
    text-align: center;
    margin-bottom: 2rem;
}

.page-header h1 {
    font-size: 2.5rem;
    color: var(--secondary);
    margin-bottom: 0.5rem;
}

.page-header p {
    color: var(--text-light);
    font-size: 1.1rem;
}

/* Article List */
.articles-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.article-card {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

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

.article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

.article-content {
    word-break: normal;
    overflow-wrap: break-word;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-light);
}

.article-title {
    font-size: 1.4rem;
    margin-bottom: 0.8rem;
    color: var(--secondary);
}

.article-title a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

.article-title a:hover {
    color: var(--primary);
}

.article-excerpt {
    color: var(--text-light);
    margin: 0 0 1.2rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.5;
}

.read-more {
    display: inline-block;
    color: var(--primary);
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
}

.read-more:hover {
    color: var(--accent);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    margin-top: 2rem;
}

.pagination a {
    display: inline-block;
    padding: 8px 16px;
    margin: 0 4px;
    border-radius: 4px;
    background-color: white;
    color: var(--secondary);
    text-decoration: none;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.pagination a.active,
.pagination a:hover {
    background-color: var(--primary);
    color: white;
}

/* Article Detail */
.article-detail {
    background: white;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.article-header {
    margin-bottom: 2rem;
    text-align: center;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid #eee;
}

.article-title-large {
    font-size: 2.2rem;
    color: var(--secondary);
    margin-bottom: 1rem;
    line-height: 1.3;
}

.article-meta-large {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    color: var(--text-light);
    font-size: 0.9rem;
}

.article-image-large {
    margin-bottom: 2rem;
    border-radius: 8px;
    overflow: hidden;
}

.article-image-large img {
    width: 100%;
    height: auto;
    display: block;
}

.article-content {
    font-size: 1.0rem;
    line-height: 1.8;
}

.article-content p {
    margin-bottom: 1.5rem;
}

.article-content h2 {
    font-size: 1.8rem;
    color: var(--secondary);
    margin: 2rem 0 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary);
}

.article-content h3 {
    font-size: 1.5rem;
    color: var(--secondary);
    margin: 1.5rem 0 1rem;
}

.article-content blockquote {
    border-left: 4px solid var(--primary);
    padding-left: 1.5rem;
    margin: 1.5rem 0;
    font-style: italic;
    color: var(--text-light);
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 2rem 0;
}

.tag {
    background-color: var(--light);
    color: var(--secondary);
    padding: 0.5rem 1rem;
    border-radius: 30px;
    font-size: 0.9rem;
    text-decoration: none;
    transition: var(--transition);
}

.tag:hover {
    background-color: var(--primary);
    color: white;
}

/* Related Articles */
.related-articles {
    margin-bottom: 2rem;
}

.section-title {
    font-size: 1.8rem;
    color: var(--secondary);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary);
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.related-article {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.related-article:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

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

.related-article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

.related-article-content {
    padding: 1.5rem;
}

.related-article-title {
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
}

.related-article-title a {
    color: var(--secondary);
    text-decoration: none;
    transition: var(--transition);
}

.related-article-title a:hover {
    color: var(--primary);
}

.related-article-meta {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        text-align: center;
    }

    nav ul {
        margin-top: 1rem;
        justify-content: center;
    }

    nav ul li {
        margin: 0 0.5rem;
    }

    .articles-container {
        grid-template-columns: 1fr;
    }

    .article-title-large {
        font-size: 1.8rem;
    }

    .articles-grid {
        grid-template-columns: 1fr;
    }

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

/* View Toggle */
.view-toggle {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 1rem;
}

.view-toggle button {
    background: white;
    border: none;
    padding: 8px 15px;
    margin-left: 10px;
    border-radius: 4px;
    cursor: pointer;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.view-toggle button.active {
    background-color: var(--primary);
    color: white;
}

/* Hidden class for toggling */
.hidden {
    display: none;
}

/* 上一篇下一篇导航样式 */
.article-navigation {
    margin: 40px 0;
    padding: 0 15px;
}

.article-navigation .nav-container {
    display: flex;
    justify-content: space-between;
    align-items: stretch;
    gap: 15px;
    max-width: 1200px;
    margin: 0 auto;
}

.article-navigation .nav-item {
    flex: 1;
    min-height: 80px;
    border: 1px solid #e1e8ed;
    border-radius: 8px;
    background: #fff;
    transition: all 0.3s ease;
}

.article-navigation .nav-item:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-color: #007cba;
}

.article-navigation .nav-link {
    display: flex;
    align-items: center;
    padding: 15px;
    height: 100%;
    text-decoration: none;
    color: #333;
}

.article-navigation .nav-link.disabled {
    color: #999;
    cursor: not-allowed;
}

.article-navigation .nav-link.disabled:hover {
    box-shadow: none;
    border-color: #e1e8ed;
}

/* 上一篇样式 */
.article-navigation .nav-prev .nav-link {
    text-align: left;
}

/* 下一篇样式 */
.article-navigation .nav-next .nav-link {
    text-align: right;
    flex-direction: row-reverse;
}

/* 返回列表居中 */
.article-navigation .nav-home {
    flex: 0 0 auto;
    width: 120px;
}

.article-navigation .nav-home .nav-link {
    flex-direction: column;
    justify-content: center;
    text-align: center;
}

.article-navigation .nav-arrow {
    font-size: 20px;
    font-weight: bold;
    color: #007cba;
    margin: 0 10px;
}

.article-navigation .nav-icon {
    font-size: 20px;
    margin-bottom: 5px;
}

.article-navigation .nav-content {
    flex: 1;
}

.article-navigation .nav-label {
    font-size: 12px;
    color: #666;
    margin-bottom: 5px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.article-navigation .nav-title {
    font-size: 14px;
    font-weight: 500;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-navigation .nav-link:hover .nav-title {
    color: #007cba;
}

.article-navigation .nav-link.disabled .nav-title {
    color: #999;
}

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

    .article-navigation .nav-home {
        width: 100%;
        order: 3;
        margin-top: 15px;
    }

    .article-navigation .nav-home .nav-link {
        flex-direction: row;
        justify-content: center;
    }

    .article-navigation .nav-home .nav-icon {
        margin-bottom: 0;
        margin-right: 8px;
    }

    .article-navigation .nav-item {
        min-height: 70px;
    }
}

@media (max-width: 480px) {
    .article-navigation {
        margin: 30px 0;
    }

    .article-navigation .nav-link {
        padding: 12px;
    }

    .article-navigation .nav-title {
        font-size: 13px;
        -webkit-line-clamp: 2;
    }

    .article-navigation .nav-arrow {
        font-size: 18px;
        margin: 0 8px;
    }
}