@import '//at.alicdn.com/t/c/font_5030998_ps5ujmfwrub.css';
/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f6fa;
}

/* Container */
.container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background-color: #ffffff;
    border-bottom: 1px solid #e5e5e5;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo h1 {
    font-size: 1.2rem;
    font-weight: 700;
}

.logo a {
    text-decoration: none;
    color: #2c3e50;
    transition: color 0.3s ease;
}

.logo a:hover {
    color: #3498db;
}

/* Navigation */
.nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 1.8rem;
}

.nav-list a {
    text-decoration: none;
    color: #555;
    transition: color 0.3s ease;
    position: relative;
}

.nav-list a:hover,
.nav-list a.active {
    color: #3498db;
}

.nav-list a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: #3498db;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: #333;
    transition: all 0.3s ease;
}

/* Header Search */
.header-search {
    display: flex;
    align-items: center;
}

.search-form {
    display: flex;
    align-items: center;
    background-color: rgba(255,255,255,0.9);
    border: 1px solid rgba(233,236,239,0.8);
    border-radius: 20px;
    padding: 0.3rem 0.5rem;
    transition: all 0.3s ease;
    width: 200px;
    backdrop-filter: blur(10px);
}

.search-form:focus-within {
    border-color: #3498db;
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.1);
}

.search-input {
    border: none;
    background: transparent;
    outline: none;
    padding: 0.3rem 0.5rem;
    font-size: 0.9rem;
    color: #333;
    flex: 1;
    width: 100%;
}

.search-input::placeholder {
    color: #999;
}

.search-button {
    background: none;
    border: none;
    color: #666;
    cursor: pointer;
    padding: 0.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.search-button:hover {
    color: #3498db;
    background-color: rgba(52, 152, 219, 0.1);
}

.search-button svg {
    width: 16px;
    height: 16px;
}

/* Main Content */
.main {
    min-height: calc(100vh - 140px);
    padding: 1.5rem 0;
}

.content-wrapper {
    display: grid;
    grid-template-columns: 1fr 330px;
    gap: 3rem;
    align-items: start;
}

.main-content {
   
}

/* Hero Section */
.hero-section {
    text-align: center;
    padding: 3rem 0;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border-radius: 12px;
    margin-bottom: 3rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.hero-section h2 {
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero-section p {
    font-size: 1.2rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

/* Post Grid */
.featured-posts,
.recent-posts {
    margin-bottom: 3rem;
}

.featured-posts h3,
.recent-posts h3 {
    font-size: 1.8rem;
    color: #2c3e50;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.post-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.post-card {
    background-color: #ffffff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 6px 20px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(255,255,255,0.8);
}

.post-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(0,0,0,0.15);
}

.post-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

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

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

.post-content {
    padding: 1.5rem;
}

.post-content h4 {
    margin-bottom: 0.5rem;
}

.post-content h4 a {
    text-decoration: none;
    color: #2c3e50;
    font-size: 1.2rem;
    font-weight: 600;
    transition: color 0.3s ease;
}

.post-content h4 a:hover {
    color: #3498db;
}

.post-excerpt {
    color: #666;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.post-meta {
    
}

.category {
    
}

/* Post List */
.post-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.post-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    border: 1px solid rgba(255,255,255,0.8);
}

.post-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.1);
}

.post-item-image {
    flex-shrink: 0;
    width: 220px;
    height: 140px;
    border-radius: 8px;
    overflow: hidden;
    background-color: #f8f9fa;
}

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

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

.post-item-content {
    flex: 1;
    min-width: 0;
}

.post-item h4 {
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
    line-height: 1.3;
}

.post-item h4 a {
    text-decoration: none;
    color: #2c3e50;
    font-weight: 600;
    transition: color 0.3s ease;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.post-item h4 a:hover {
    color: #3498db;
}

.post-item p {
    color: #666;
    margin-bottom: 0.8rem;
    font-size: 0.9rem;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.post-item .post-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 14px;
    color: #888;
}

.post-item .category {
    background-color: #3498db;
    color: white;
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
    display: inline-block;
    margin: 0.2rem 0 0.6rem 0;
}
.post-item .category a{
    color: white;
    text-decoration: none;
}

.post-item .date {
    color: #999;
}
.post-item .post-meta i{
    margin-right: 5px;
    font-size: inherit;
}
.index-item .category{
    margin: 0;
}

/* Sidebar */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.widget {
    background-color: #ffffff;
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.8);
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.widget:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.1);
}

.widget h3 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.2rem;
    font-weight: 600;
}

.widget p {
    color: #666;
    line-height: 1.5;
    word-break: keep-all;
}

.category-list,
.recent-posts-list {
    list-style: none;
}

.category-list li,
.recent-posts-list li {
    margin-bottom: 0.5rem;
    border-bottom: 1px #e4e2e2 solid;
}

.category-list a,
.recent-posts-list a {
    text-decoration: none;
    color: #555;
    transition: color 0.3s ease;
    word-break: break-all;
}

.category-list a:hover,
.recent-posts-list a:hover {
    color: #3498db;
}
.recent-posts-list a img{
    width: 30%;
    height: 70px;
    object-fit: cover;
}
.recent-posts-list a .wz{
    width: 68%;
    float: right;
}
.recent-posts-list a h4{
    display: -webkit-box;
    height: 40px;
    overflow: hidden;
    line-height: 20px;
    text-overflow: ellipsis;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;  
    font-weight: normal;
}
.recent-posts-list a p{
    color: #999;
    font-size: 12px;
    line-height: 30px;
}

/* Footer */
.footer {
    background-color: #2c3e50;
    color: white;
    padding: 2rem 0;
    margin-top: 3rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.footer-content a{
    color: white;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

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

.footer-links a:hover {
    color: #3498db;
}

/* Page Header */
.page-header {
    text-align: center;
    padding: 2rem 0 3rem;
    background-color: #ffffff;
    border-radius: 12px;
    margin-bottom: 2rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
}

.page-header h1,
.page-header h2 {
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 1rem;
    font-weight: 700;
}

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

/* Filter Section */
.filter-section {
    margin-bottom: 2rem;
    text-align: center;
}

.filter-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.5rem 1rem;
    border: 2px solid #e9ecef;
    background-color: #ffffff;
    color: #666;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.filter-btn:hover:not(.active) {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.filter-btn:hover,
.filter-btn.active {
    background-color: #3498db;
    color: white;
    border-color: #3498db;
}

/* Articles List */
.articles-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.article-card {
    background-color: #ffffff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 6px 20px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(255,255,255,0.8);
}

.article-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(0,0,0,0.15);
}

.article-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

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

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

.article-content {
    padding: 2rem;
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    border: 1px solid rgba(255, 255, 255, 0.8);
}

.article-category {
    display: inline-block;
    background-color: #3498db;
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.article-content h3 {
    margin-bottom: 0.5rem;
}

.article-content h3 a {
    text-decoration: none;
    color: #2c3e50;
    font-size: 1.3rem;
    font-weight: 600;
    transition: color 0.3s ease;
}

.article-content h3 a:hover {
    color: #3498db;
}

.article-excerpt {
    color: #666;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    color: #888;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 3rem 0;
}

.pagination a {
    padding: 0.1rem 0.5rem;
    text-decoration: none;
    color: #3498db;
    border: 1px solid #3498db;
    border-radius: 3px;
    transition: all 0.3s ease;
    background-color: #ffffff;
    box-shadow: 0 2px 6px rgba(0,0,0,0.06);
}

.pagination b {
    padding: 0.1rem 0.5rem;
    text-decoration: none;
    color: #ccc;
    border: 1px solid #ccc;
    border-radius: 3px;
    transition: all 0.3s ease;
    background-color: #ffffff;
    box-shadow: 0 2px 6px rgba(0,0,0,0.06);
}


.pagination-btn:hover:not(.disabled) {
    background-color: #3498db;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.pagination-btn.disabled {
    color: #ccc;
    border-color: #ccc;
    cursor: not-allowed;
}

.pagination-numbers {
    display: flex;
    gap: 0.5rem;
}

.pagination-numbers a {
    padding: 0.5rem 0.8rem;
    text-decoration: none;
    color: #666;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    transition: all 0.3s ease;
    background-color: #ffffff;
    box-shadow: 0 2px 6px rgba(0,0,0,0.06);
}

.pagination-numbers a:hover:not(.active) {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.pagination-numbers a:hover,
.pagination-numbers a.active {
    background-color: #3498db;
    color: white;
    border-color: #3498db;
}

/* Search Box */
.search-box {
    display: flex;
    gap: 0.5rem;
}

.search-box input {
    flex: 1;
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 0.9rem;
    background-color: #ffffff;
    box-shadow: 0 2px 6px rgba(0,0,0,0.06);
}

.search-box button {
    padding: 0.5rem 1rem;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 6px rgba(0,0,0,0.06);
}

.search-box button:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

/* Tag Cloud */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag-cloud a {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background-color: #ffffff;
    color: #666;
    text-decoration: none;
    border-radius: 15px;
    font-size: 0.8rem;
    transition: all 0.3s ease;
    border: 1px solid #e9ecef;
    box-shadow: 0 2px 6px rgba(0,0,0,0.06);
}

.tag-cloud a:hover {
    background-color: #3498db;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

/* Article Content Styles */
.article-header {
    margin-bottom: 2rem;
    border-bottom: 1px solid #e9ecef;
}

.breadcrumb {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 1rem;
}

.breadcrumb a {
    color: #3498db;
    text-decoration: none;
}

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

.article-content h1 {
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 1rem;
    line-height: 1.2;
    font-weight: 700;
}



.meta-info {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.meta-info span {
    font-size: 14px;
    color: #666;
}
.meta-info i{
    margin-right: 5px;
    font-size: inherit;
}
.meta-info span.author a{
    text-decoration: none;
    color: #3498db;
} 

.article-image {
    width: 100%;
    height: 300px;
    overflow: hidden;
    border-radius: 12px;
    margin-bottom: 2rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

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

.article-body {
    font-size: 1.1rem;
    line-height: 1.7;
    color: #333;
}

.article-body .lead {
    font-size: 1.3rem;
    color: #555;
    font-weight: 400;
    margin-bottom: 2rem;
    padding-left: 1rem;
    border-left: 4px solid #3498db;
}

.article-body h2 {
    font-size: 1.8rem;
    color: #2c3e50;
    margin: 2rem 0 1rem;
    font-weight: 600;
}

.article-body h3 {
    font-size: 1.4rem;
    color: #2c3e50;
    margin: 1.5rem 0 1rem;
    font-weight: 600;
}

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

.article-body ul,
.article-body ol {
    margin-bottom: 1.5rem;
    padding-left: 2rem;
}

.article-body li {
    margin-bottom: 0.5rem;
}

.article-body blockquote {
    background-color: #ffffff;
    border-left: 4px solid #3498db;
    padding: 1rem 1.5rem;
    margin: 2rem 0;
    font-style: italic;
    font-size: 1.1rem;
    color: #555;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
}

.article-footer {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid #e9ecef;
}
.article-footer .tags a {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background-color: #ffffff;
    color: #666;
    text-decoration: none;
    border-radius: 15px;
    font-size: 0.8rem;
    transition: all 0.3s ease;
    border: 1px solid #e9ecef;
    box-shadow: 0 2px 6px rgba(0,0,0,0.06);
    margin-right: 7px;
}

.article-footer .tags a:hover {
    background-color: #3498db;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.tags {
    margin-bottom: 2rem;
}

.tag-label {
    font-weight: 600;
    color: #666;
    margin-right: 0.5rem;
}

.article-navigation {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.nav-previous,
.nav-next {
    padding: 1rem;
    background-color: #f1f1f1;
    border-radius: 12px;
}

.nav-previous:hover,
.nav-next:hover {
    transform: translateY(-2px);
    
}

.nav-next {
    text-align: right;
}

.nav-label {
    display: block;
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 0.5rem;
}

.nav-previous a,
.nav-next a {
    color: #2c3e50;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.nav-previous a:hover,
.nav-next a:hover {
    color: #3498db;
}

/* Table of Contents */
.toc {
    list-style: none;
}

.toc li {
    margin-bottom: 0.5rem;
}

.toc a {
    color: #666;
    text-decoration: none;
    transition: color 0.3s ease;
}

.toc a:hover {
    color: #3498db;
}

/* Newsletter Form */
.newsletter-form {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.newsletter-form input {
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 0.9rem;
    background-color: #ffffff;
    box-shadow: 0 2px 6px rgba(0,0,0,0.06);
}

.newsletter-form button {
    padding: 0.5rem;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 2px 6px rgba(0,0,0,0.06);
}

.newsletter-form button:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

/* Social Links */
.social-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.social-link {
    padding: 0.4rem 0.8rem;
    background-color: #ffffff;
    color: #666;
    text-decoration: none;
    border-radius: 8px;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    border: 1px solid #e9ecef;
    box-shadow: 0 2px 6px rgba(0,0,0,0.06);
}

.social-link:hover {
    background-color: #3498db;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

/* About Page Styles */
.about-content {
    font-size: 1.1rem;
    line-height: 1.7;
}

.about-section {
    margin-bottom: 3rem;
}

.about-section h2 {
    font-size: 1.8rem;
    color: #2c3e50;
    margin-bottom: 1rem;
    font-weight: 600;
}

.topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.topic-card {
    background-color: #ffffff;
    padding: 1.5rem;
    border-radius: 12px;
    border-left: 4px solid #3498db;
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.topic-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.1);
}

.topic-card h3 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.topic-card p {
    color: #666;
}

.values-list {
    list-style: none;
    padding-left: 0;
}

.values-list li {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
    position: relative;
}

.values-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #3498db;
    font-weight: bold;
}

.contact-info {
    background-color: #ffffff;
    padding: 1.5rem;
    border-radius: 12px;
    margin-top: 1rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
}

.contact-link {
    color: #3498db;
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-link:hover {
    color: #2980b9;
    text-decoration: underline;
}

/* Sitemap */
.sitemap {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.sitemap-section h4 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.sitemap-section ul {
    list-style: none;
}

.sitemap-section li {
    margin-bottom: 0.3rem;
}

.sitemap-section a {
    color: #666;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.sitemap-section a:hover {
    color: #3498db;
}

/* Stats */
.stats {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.stat-item {
    text-align: center;
    padding: 1rem;
    background-color: #ffffff;
    border-radius: 12px;
    border: 1px solid #e9ecef;
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.stat-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.1);
}

.stat-number {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: #3498db;
}

.stat-label {
    font-size: 0.9rem;
    color: #666;
}

/* Back to Top Button - Pure CSS */
.back-to-top {
    position: fixed;
    bottom: 90px;
    right: 20px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: #3498db;
    color: white;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.back-to-top:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}

/* Show back to top button when scrolled */
body.scrolled .back-to-top {
    opacity: 1;
    visibility: visible;
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }