:root {
    --primary-color: #3498db;
    --primary-hover: #2980b9;
    --secondary-color: #2c3e50;
    --light-bg: #f8f9fa;
    --dark-text: #333;
    --light-text: #666;
    --border-color: #eaeaea;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --border-radius: 8px;
    --pagination-bg: #fff;
    --pagination-hover: #f0f0f0;
    --pagination-active: #3498db;
    --pagination-active-text: #fff;
    --pagination-disabled: #e0e0e0;
}

* {
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    margin: 0;
    padding: 20px;
    min-height: 100vh;
    color: var(--dark-text);
}

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

header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

h1 {
    color: var(--secondary-color);
    margin: 0;
    font-size: 2.5rem;
    font-weight: 700;
}

.stats {
    color: var(--light-text);
    font-size: 1rem;
    margin-top: 10px;
}

.articles-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    margin-bottom: 30px;
}

@media (min-width: 768px) {
    .articles-grid {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }
}

@media (min-width: 1024px) {
    .articles-grid {
        grid-template-columns: 1fr 1fr;
        gap: 25px;
    }
}

.article-card {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

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

.article-content-wrapper {
    padding: 25px;
}

.article-title {
    margin-top: 0;
    margin-bottom: 15px;
}

.article-title a {
    text-decoration: none;
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 600;
    transition: color 0.3s ease;
}

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

.article-title a {
    pointer-events: none;
    cursor: inherit;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    color: var(--light-text);
    font-size: 0.9rem;
    margin: 15px 0;
    padding: 10px 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.article-meta-mobile {
    display: none;
}

.article-description {
    line-height: 1.6;
    color: var(--dark-text);
    margin-bottom: 0;
}

.article-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 15px;
}

@media (min-width: 768px) {
    .article-content {
        grid-template-columns: 1fr auto;
    }
}

.article-description {
    grid-column: 1;
    grid-row: 1;
}

.article-image {
    width: 200px;
    height: 150px;
    object-fit: cover;
    border-radius: var(--border-radius);
    display: none;
    justify-self: end;
    align-self: start;
}

.article-image.show {
    display: block;
}

/* PC端优化：当屏幕宽度大于等于1024px时 */
@media (min-width: 1024px) {
    .article-content {
        grid-template-columns: 1fr 200px;
        gap: 20px;
    }
    
    .article-description {
        max-height: 150px;
        overflow: hidden;
        display: -webkit-box;
        -webkit-line-clamp: 6;
        -webkit-box-orient: vertical;
    }
}

/* 美化后的分页样式 */
.pagination-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    margin: 30px 0;
    padding: 20px;
    background: var(--pagination-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    font-size: 1rem;
}

.pagination-wrapper a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    background-color: var(--pagination-bg);
    color: var(--dark-text);
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
    font-weight: 500;
    border: 1px solid var(--border-color);
}

.pagination-wrapper a:hover:not(.current-page) {
    background-color: var(--pagination-hover);
    transform: translateY(-2px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.pagination-wrapper .current-page {
    background-color: var(--pagination-active);
    color: var(--pagination-active-text);
    border-color: var(--pagination-active);
    box-shadow: 0 2px 4px rgba(52, 152, 219, 0.3);
}

.pagination-wrapper a[href^="./articles-list.html"]:first-of-type,
.pagination-wrapper a[href^="./articles-list.html"]:last-of-type {
    background-color: var(--secondary-color);
    color: white;
    border-color: var(--secondary-color);
}

.pagination-wrapper a[href^="./articles-list.html"]:first-of-type:hover:not(.current-page),
.pagination-wrapper a[href^="./articles-list.html"]:last-of-type:hover:not(.current-page) {
    background-color: #1a2530;
    border-color: #1a2530;
}

.pagination-wrapper span {
    padding: 0 5px;
    color: var(--light-text);
}

.pagination-info {
    flex: 100%;
    text-align: center;
    color: var(--light-text);
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
    font-size: 1rem;
}

footer {
    text-align: center;
    margin-top: 30px;
    color: var(--light-text);
    font-size: 0.9rem;
}

/* 移动端优化 */
@media (max-width: 767px) {
    body {
        padding: 10px;
    }
    
    .container {
        padding: 10px;
    }
    
    header {
        padding: 15px 10px;
        margin-bottom: 20px;
    }
    
    h1 {
        font-size: 1.8rem;
    }
    
    .stats {
        font-size: 0.9rem;
    }
    
    .article-content-wrapper {
        padding: 15px;
    }
    
    .article-title a {
        font-size: 1.2rem;
    }
    
    .article-meta {
        display: none;
    }
    
    .article-meta-mobile {
        display: block;
        color: var(--light-text);
        font-size: 0.8rem;
        margin: 10px 0;
    }
    
    .article-content {
        display: flex;
        flex-direction: row;
        align-items: flex-start;
        gap: 15px;
        flex-wrap: nowrap;
    }
    
    .article-description {
        flex: 1;
        min-width: 0;
        display: -webkit-box;
        -webkit-line-clamp: 6;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    
    .article-image {
        width: 100px;
        height: 80px;
        flex-shrink: 0;
        object-fit: cover;
        border-radius: var(--border-radius);
    }
    
    .article-image.show {
        display: block;
    }
    
    .pagination-wrapper {
        padding: 15px 10px;
        gap: 4px;
    }
    
    .pagination-wrapper a {
        min-width: 32px;
        height: 32px;
        padding: 0 8px;
        font-size: 0.9rem;
    }
    
    .pagination-info {
        font-size: 0.9rem;
        margin-top: 10px;
        padding-top: 10px;
    }
}