/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #4A4E69;
    --secondary-color: #9A8C98;
    --accent-color: #D4AF37;
    --light-color: #F7F7F9;
    --dark-color: #22223B;
    --gray-light: #E6E6E9;
    --text-primary: #333333;
    --text-secondary: #666666;
    --border-radius: 8px;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --transition: all 0.3s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--light-color);
}

img {
    display: block;
    max-width: 100%;
    height: auto;
    margin-left: auto;
    margin-right: auto;
}

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
.main-header {
    background-color: white;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.logo span {
    color: var(--accent-color);
}

.main-nav {
    display: flex;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--primary-color);
    font-weight: 500;
    padding: 8px 12px;
    border-radius: var(--border-radius);
    transition: var(--transition);
    position: relative;
}

.nav-link:hover {
    color: var(--accent-color);
    background-color: var(--light-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background-color: var(--accent-color);
    transition: var(--transition);
}

.nav-link:hover::after {
    width: 70%;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-color);
    cursor: pointer;
    padding: 5px;
}

/* Featured Articles */
.featured-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

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

.featured-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.featured-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

.featured-content {
    padding: 20px;
}

.featured-meta {
    display: flex;
    justify-content: space-between;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.featured-title {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--primary-color);
}

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

.featured-title a:hover {
    color: var(--accent-color);
}

.featured-excerpt {
    color: var(--text-secondary);
    margin-bottom: 15px;
}

.read-more {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: var(--transition);
}

.read-more:hover {
    gap: 10px;
}

/* Category Grid */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin: 50px 0;
}

.category-card {
    background: white;
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    border-top: 4px solid var(--accent-color);
}

.category-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.category-title {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin: 0;
}

.view-all {
    color: var(--secondary-color);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
}

.view-all:hover {
    color: var(--accent-color);
}

.article-list {
    list-style: none;
}

.article-item {
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-light);
}

.article-item:last-child {
    border-bottom: none;
}

.article-link {
    color: var(--text-primary);
    text-decoration: none;
    display: block;
    transition: var(--transition);
    padding: 5px 0;
}

.article-link:hover {
    color: var(--accent-color);
    padding-left: 10px;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 5px;
}

/* Latest Articles */
.latest-articles {
    margin: 60px 0;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--gray-light);
}

.section-title {
    font-size: 1.8rem;
    color: var(--primary-color);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -17px;
    left: 0;
    width: 60px;
    height: 3px;
    background-color: var(--accent-color);
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

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

.article-card:hover {
    transform: translateY(-3px);
}

.card-image {
    width: 100%;
    height: 180px;
    object-fit: cover;
    display: block;
}

.card-content {
    padding: 20px;
}

.card-category {
    display: inline-block;
    background-color: var(--light-color);
    color: var(--secondary-color);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    margin-bottom: 10px;
    text-decoration: none;
    transition: var(--transition);
}

.card-category:hover {
    background-color: var(--accent-color);
    color: white;
}

.card-title {
    font-size: 1.1rem;
    line-height: 1.4;
    margin-bottom: 10px;
}

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

.card-title a:hover {
    color: var(--accent-color);
}

.card-excerpt {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 15px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.read-count {
    display: flex;
    align-items: center;
    gap: 5px;
}

/* Trending Topics */
.trending-topics {
    background-color: var(--gray-light);
    padding: 40px 0;
    margin: 50px 0;
}

.topics-container {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
}

.topic-tag {
    background-color: white;
    padding: 10px 20px;
    border-radius: 25px;
    text-decoration: none;
    color: var(--primary-color);
    font-weight: 500;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid transparent;
}

.topic-tag:hover {
    background-color: var(--accent-color);
    color: white;
    transform: scale(1.05);
    border-color: var(--accent-color);
}

/* Newsletter */
.newsletter-section {
    background-color: var(--primary-color);
    color: white;
    padding: 40px;
    border-radius: var(--border-radius);
    margin: 50px 0;
    text-align: center;
}

.newsletter-title {
    color: white;
    margin-bottom: 10px;
}

.newsletter-description {
    opacity: 0.9;
    margin-bottom: 25px;
}

.newsletter-form {
    display: flex;
    max-width: 500px;
    margin: 0 auto;
    gap: 10px;
}

.newsletter-input {
    flex: 1;
    padding: 12px 20px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
}

.newsletter-btn {
    background-color: var(--accent-color);
    color: var(--dark-color);
    border: none;
    padding: 12px 30px;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.newsletter-btn:hover {
    background-color: white;
}

/* Footer */
.main-footer {
    background-color: var(--dark-color);
    color: white;
    padding: 60px 0 30px;
}

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

.footer-logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: white;
    margin-bottom: 20px;
    display: block;
}

.footer-description {
    opacity: 0.8;
    margin-bottom: 25px;
}

.footer-title {
    color: white;
    font-size: 1.2rem;
    margin-bottom: 20px;
    position: relative;
}

.footer-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 40px;
    height: 2px;
    background-color: var(--accent-color);
}

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

.footer-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    display: block;
    padding: 8px 0;
    transition: var(--transition);
}

.footer-link:hover {
    color: var(--accent-color);
    padding-left: 5px;
}

.recommended-articles {
    list-style: none;
}

.recommended-item {
    display: flex;
    gap: 15px;
    padding: 15px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.recommended-item:last-child {
    border-bottom: none;
}

.recommended-image {
    width: 80px;
    height: 60px;
    object-fit: cover;
    border-radius: 4px;
}

.recommended-content {
    flex: 1;
}

.recommended-title {
    color: white;
    font-size: 0.9rem;
    line-height: 1.4;
    margin-bottom: 5px;
}

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

.recommended-title a:hover {
    color: var(--accent-color);
}

.recommended-date {
    font-size: 0.8rem;
    opacity: 0.7;
}

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

.copyright {
    opacity: 0.7;
    margin-bottom: 15px;
}

.footer-menu {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.footer-menu a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
}

.footer-menu a:hover {
    color: var(--accent-color);
}

/* Pagination */
.pagination {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin: 40px 0;
}

.page-item {
    list-style: none;
}

.page-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: white;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.page-link:hover {
    background-color: var(--accent-color);
    color: white;
}

.page-link.current {
    background-color: var(--primary-color);
    color: white;
}

.page-link.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.page-link.disabled:hover {
    background-color: white;
    color: var(--primary-color);
}

/* Breadcrumb */
.breadcrumb {
    padding: 20px 0;
    margin-bottom: 30px;
    border-bottom: 1px solid var(--gray-light);
}

.breadcrumb-list {
    display: flex;
    list-style: none;
    gap: 10px;
    flex-wrap: wrap;
}

.breadcrumb-item {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

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

.breadcrumb-item a:hover {
    color: var(--accent-color);
}

.breadcrumb-separator {
    margin: 0 5px;
}

/* Main Layout */
.main-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 40px;
    margin: 40px 0;
    align-items: start;
}

/* Sidebar */
.sidebar {
    background-color: white;
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.sidebar-section {
    margin-bottom: 30px;
}

.sidebar-section:last-child {
    margin-bottom: 0;
}

.sidebar-title {
    font-size: 1.1rem;
    color: var(--primary-color);
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--gray-light);
    position: relative;
}

.sidebar-title::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 40px;
    height: 2px;
    background-color: var(--accent-color);
}

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

.category-item {
    margin-bottom: 10px;
}

.category-link {
    color: var(--text-primary);
    text-decoration: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    transition: var(--transition);
    border-bottom: 1px solid var(--gray-light);
}

.category-link:hover {
    color: var(--accent-color);
    padding-left: 10px;
}

.category-count {
    background-color: var(--light-color);
    color: var(--secondary-color);
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 0.8rem;
}

.popular-articles {
    list-style: none;
}

.popular-item {
    display: flex;
    gap: 15px;
    padding: 15px 0;
    border-bottom: 1px solid var(--gray-light);
}

.popular-item:last-child {
    border-bottom: none;
}

.popular-rank {
    font-weight: 700;
    color: var(--accent-color);
    font-size: 1.2rem;
    min-width: 25px;
}

.popular-content {
    flex: 1;
}

.popular-title {
    font-size: 0.95rem;
    line-height: 1.4;
    margin-bottom: 5px;
}

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

.popular-title a:hover {
    color: var(--accent-color);
}

.popular-date {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Article Detail */
.article-header {
    margin-bottom: 30px;
}

.article-title {
    font-size: 2.2rem;
    color: var(--primary-color);
    line-height: 1.3;
    margin-bottom: 15px;
}

.article-meta-detail {
    display: flex;
    gap: 20px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.article-content {
    background-color: white;
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-bottom: 40px;
}

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

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

.article-body h2 {
    color: var(--primary-color);
    margin: 2rem 0 1rem;
    font-size: 1.5rem;
}

.article-body h3 {
    color: var(--primary-color);
    margin: 1.5rem 0 1rem;
    font-size: 1.3rem;
}

.article-navigation {
    display: flex;
    justify-content: space-between;
    padding: 30px 0;
    border-top: 1px solid var(--gray-light);
    border-bottom: 1px solid var(--gray-light);
    margin: 40px 0;
}

.nav-link-article {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    max-width: 45%;
    transition: var(--transition);
}

.nav-link-article:hover {
    color: var(--accent-color);
}

/* Comment Form */
.comment-form {
    background-color: white;
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-top: 40px;
}

.form-title {
    color: var(--primary-color);
    margin-bottom: 25px;
    font-size: 1.5rem;
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-primary);
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--gray-light);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

textarea.form-control {
    min-height: 150px;
    resize: vertical;
}

.submit-btn {
    background-color: var(--accent-color);
    color: var(--dark-color);
    border: none;
    padding: 14px 30px;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

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

/* Author Profile */
.author-profile {
    display: flex;
    gap: 25px;
    background-color: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin: 40px 0;
}

.author-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--gray-light);
}

.author-info {
    flex: 1;
}

.author-name {
    font-weight: 700;
    font-size: 1.4rem;
    color: var(--primary-color);
    margin-bottom: 10px;
    text-decoration: none;
    display: block;
}

.author-bio {
    color: var(--text-secondary);
    margin-bottom: 15px;
}

.author-description {
    line-height: 1.6;
}

/* Standalone Page */
.page-content {
    background-color: white;
    padding: 50px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin: 40px 0;
}

.page-title {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 30px;
    text-align: center;
}

.page-description {
    margin-bottom: 30px;
}

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

/* Mobile Responsive */
@media (max-width: 992px) {
    .main-layout {
        grid-template-columns: minmax(0, 1fr);
        gap: 30px;
    }
    
    .sidebar {
        position: static;
        max-height: none;
    }
    
    .articles-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    .header-container {
        flex-wrap: wrap;
        padding: 6px 0;
    }

    .logo {
        font-size: 1.3rem;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .main-nav {
        display: none;
        width: 100%;
        order: 3;
        margin-top: 15px;
    }
    
    .main-nav.active {
        display: block;
    }
    
    .nav-list {
        flex-direction: column;
        gap: 0;
    }
    
    .nav-link {
        display: block;
        padding: 12px 0;
        border-bottom: 1px solid var(--gray-light);
    }
    
    .nav-link::after {
        display: none;
    }
    
    .featured-grid {
        grid-template-columns: 1fr;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .article-content {
        padding: 25px;
    }
    
    .author-profile {
        flex-direction: column;
        text-align: center;
    }
    
    .author-avatar {
        margin: 0 auto;
    }
    
    .page-content {
        padding: 30px;
    }

    .breadcrumb {
        padding: 10px 0;
        margin-bottom: 10px;
    }

    .page-title {
        font-size: 1.8rem;
        margin-bottom: 10px;
    }
}

@media (max-width: 576px) {
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .articles-grid {
        grid-template-columns: 1fr;
    }
    
    .article-title {
        font-size: 1.8rem;
    }
    
    .article-meta-detail {
        flex-direction: column;
        gap: 10px;
    }
    
    .article-navigation {
        flex-direction: column;
        gap: 20px;
    }
    
    .nav-link-article {
        max-width: 100%;
    }
}