:root {
    --primary-dark: #5d4037;
    --primary-brown: #8B4513;
    --light-bg: #f5f1e8;
    --medium-bg: #e8e1d1;
    --dark-text: #3c2f2f;
    --medium-text: #6d4c41;
    --light-text: #8d6e63;
    --card-bg: #fff;
    --footer-bg: #4e342e;
    --footer-text: #d7ccc8;
    --border-color: #d4c9b9;
    --shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    --shadow-hover: 0 15px 30px rgba(139, 69, 19, 0.1);
}

body {
    line-height: 1.6;
    min-height: 100vh;
}

/* 页面标题 */
.page-header {
    text-align: center;
    margin-bottom: 40px;
    margin-top: 20px;
    padding: 40px 20px;
    background: linear-gradient(135deg, rgba(139, 69, 19, 0.05) 0%, rgba(93, 64, 55, 0.05) 100%);
    border-radius: 20px;
    position: relative;
    overflow: hidden;
}

.page-header h2 {
    font-size: 42px;
    color: var(--primary-dark);
    margin-bottom: 15px;
    position: relative;
    z-index: 1;
}

.page-header p {
    font-size: 18px;
    color: var(--medium-text);
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

/* 搜索和筛选栏 */
.articles-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 20px;
}

.search-box {
    flex: 1;
    max-width: 400px;
    display: flex;
    background-color: var(--card-bg);
    border-radius: 40px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}

.search-box input {
    flex: 1;
    padding: 12px 20px;
    border: none;
    outline: none;
    font-size: 16px;
    background-color: transparent;
    color: var(--dark-text);
}

.search-box input::placeholder {
    color: var(--light-text);
}

.search-box button {
    padding: 12px 25px;
    background-color: var(--primary-brown);
    color: #fff;
    border: none;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s;
}

.search-box button:hover {
    background-color: #6a3510;
}

.view-toggle {
    display: flex;
    gap: 10px;
}

.view-btn {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--medium-text);
    cursor: pointer;
    transition: all 0.3s;
}

.view-btn.active {
    background-color: var(--primary-brown);
    color: #fff;
    border-color: var(--primary-brown);
}

/* 文章分类 */
.article-categories {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 40px;
    justify-content: center;
}

.category-btn {
    padding: 10px 25px;
    background-color: transparent;
    border: 2px solid #a1887f;
    border-radius: 30px;
    color: var(--medium-text);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 15px;
}

.category-btn:hover {
    background-color: var(--primary-brown);
    color: #fff;
    border-color: var(--primary-brown);
    transform: translateY(-2px);
}

.category-btn.active {
    background-color: var(--primary-brown);
    color: #fff;
    border-color: var(--primary-brown);
}

/* 文章列表 - 网格视图 */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
    transition: all 0.3s;
}

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

.articles-grid.list-view .article-card {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 25px;
}

.articles-grid.list-view .article-image {
    height: 200px;
}

.article-card {
    background-color: var(--card-bg);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

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

.article-image {
    height: 220px;
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
}

.article-image:after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 50%, rgba(0, 0, 0, 0.3));
    opacity: 0;
    transition: opacity 0.3s;
}

.article-card:hover .article-image:after {
    opacity: 1;
}

.article-category-tag {
    position: absolute;
    top: 15px;
    left: 15px;
    background-color: var(--primary-brown);
    color: #fff;
    padding: 5px 15px;
    border-radius: 25px;
    font-size: 13px;
    font-weight: 500;
    z-index: 1;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.article-content {
    padding: 25px;
}

.article-meta {
    display: flex;
    gap: 15px;
    margin-bottom: 12px;
    font-size: 14px;
    color: var(--light-text);
    flex-wrap: wrap;
}

.article-meta span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.article-meta i {
    color: var(--primary-brown);
}

.article-content h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--primary-dark);
    line-height: 1.4;
}

.article-content h3 a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s;
}

.article-content h3 a:hover {
    color: var(--primary-brown);
}

.article-excerpt {
    color: var(--medium-text);
    margin-bottom: 20px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.8;
}

.article-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
}

.read-more {
    color: var(--primary-brown);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s;
}

.read-more:hover {
    gap: 12px;
    color: #6a3510;
}

.article-stats {
    display: flex;
    gap: 15px;
    color: var(--light-text);
    font-size: 13px;
}

.article-stats span {
    display: flex;
    align-items: center;
    gap: 5px;
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin: 50px 0;
    flex-wrap: wrap;
}

.page-btn {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--medium-text);
    cursor: pointer;
    transition: all 0.3s;
    font-size: 16px;
    text-decoration: none;
}

.page-btn:hover {
    background-color: var(--primary-brown);
    color: #fff;
    border-color: var(--primary-brown);
    transform: translateY(-2px);
}

.page-btn.active {
    background-color: var(--primary-brown);
    color: #fff;
    border-color: var(--primary-brown);
}

.page-dots {
    color: var(--medium-text);
    font-size: 18px;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .articles-grid.list-view .article-card {
        grid-template-columns: 1fr;
    }

    .articles-grid.list-view .article-image {
        height: 220px;
    }

    .page-header h2 {
        font-size: 36px;
    }
}

@media (max-width: 768px) {
    header {
        flex-direction: column;
        text-align: center;
    }

    .main-nav {
        justify-content: center;
    }

    .articles-toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .search-box {
        max-width: 100%;
    }

    .view-toggle {
        justify-content: flex-end;
    }

    .page-header h2 {
        font-size: 32px;
    }

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