/* 桌面端卡片布局 - 左右布局 */
@media (min-width: 769px) {
    .category-card {
        flex-direction: row;
        align-items: center;
        min-height: 200px;
        padding: 2rem;
    }
    
    .card-image {
        width: 200px;
        height: 200px;
        margin-left: 2rem;
        aspect-ratio: 1/1;
        flex-shrink: 0;
        order: 2;
        border-radius: 12px;
        overflow: hidden;
    }
    
    .card-image .card-title {
        display: none; /* 桌面端隐藏图片内的标题 */
    }
    
    .card-title {
        font-size: 1.4rem;
        font-weight: 500;
        color: #1a1a1a;
        margin-bottom: 1rem;
        line-height: 1.4;
        letter-spacing: 0.01em;
    }
    
    .card-content {
        padding: 0;
        flex: 1;
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
        align-items: flex-start;
        order: 1;
    }
}

/* 类别页面样式 - 极简清晰设计 */
.category-page {
    background: #ffffff;
    min-height: 100vh;
    font-family: 'Noto Sans CJK SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'WenQuanYi Micro Hei', sans-serif;
    color: #1a1a1a;
    line-height: 1.6;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 2rem 0;
}

/* 页面头部 - 统一清晰设计 */
.page-header {
    text-align: center;
    padding: 3rem 0 2.5rem;
    margin-bottom: 2rem;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border-radius: 12px;
    border: 1px solid #f0f0f0;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #6b7c93, #8fa3b8, #6b7c93);
}

.page-title {
    font-size: 2.6rem;
    font-weight: 300;
    color: #1a1a1a;
    margin-bottom: 1.5rem;
    letter-spacing: 0.02em;
    line-height: 1.3;
    text-align: center;
    position: relative;
}

.page-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #6b7c93, #8fa3b8);
    margin: 1.5rem auto 0;
    border-radius: 2px;
}

/* 三个正方形图片布局 - 统一清晰风格 */
.page-hero-images {
    margin-top: 3rem;
    display: flex;
    gap: 2.5rem;
    justify-content: center;
    align-items: center;
    flex-wrap: nowrap;
    padding: 0 2rem;
}

.hero-image-container {
    flex: 0 0 auto;
    width: 220px;
    height: 220px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    border: 3px solid #ffffff;
    background: #ffffff;
}

.hero-image-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(107, 124, 147, 0.1) 0%, rgba(143, 163, 184, 0.1) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 1;
}

.hero-image-container:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
    border-color: #6b7c93;
}

.hero-image-container:hover::before {
    opacity: 1;
}

.hero-image-container .hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 0;
}

.hero-image-container:hover .hero-image {
    transform: scale(1.08);
}

/* 兼容原有的单张图片样式 - 极简设计 */
.page-hero-image {
    margin-top: 2rem;
    border-radius: 4px;
    overflow: hidden;
    aspect-ratio: 16/9;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    border: 1px solid #f0f0f0;
}

.page-hero-image .hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.2s ease;
}

.page-hero-image .hero-image:hover {
    transform: scale(1.01);
}

.page-description {
    font-size: 1.1rem;
    color: #4a4a4a;
    line-height: 1.7;
    margin: 2rem auto 0;
    font-weight: 400;
    letter-spacing: 0.01em;
    max-width: 600px;
    text-align: center;
    padding: 0 1rem;
}

/* 页面内容 - 清晰字体层次 */
.page-content {
    padding: 2rem 0 3rem;
    font-size: 18px;
    line-height: 1.9;
    color: #1a1a1a;
    max-width: 100%;
    font-weight: 400;
}

.main-content {
    background: transparent;
    color: #1a1a1a;
    line-height: 1.8;
    font-size: 18px;
    font-weight: 400;
    padding: 1.5rem 0;
    border-radius: 0;
    margin-bottom: 1.5rem;
    border-left: none;
}

.main-content h1,
.main-content h2,
.main-content h3,
.main-content h4,
.main-content h5,
.main-content h6 {
    color: #0a0a0a;
    font-weight: 500;
    margin-top: 2.5rem;
    margin-bottom: 1.2rem;
    letter-spacing: 0.01em;
    line-height: 1.5;
}

.main-content h1 {
    font-size: 1.6rem;
    font-weight: 500;
    margin-bottom: 1.2rem;
}

.main-content h2 {
    font-size: 1.6rem;
    font-weight: 500;
}

.main-content h3 {
    font-size: 1.4rem;
    font-weight: 500;
}

.main-content p {
    margin-bottom: 1.4rem;
    color: #1a1a1a;
    font-weight: 400;
    line-height: 1.8;
}

.main-content a {
    color: #6b7c93;
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-weight: 400;
}

.main-content a:hover {
    color: #8fa3b8;
    border-bottom-color: #8fa3b8;
    background-color: rgba(107, 124, 147, 0.05);
    padding: 0.1rem 0.3rem;
    border-radius: 3px;
}

/* 锚点链接样式 */
.main-content a[href^="#"] {
    color: #6b7c93;
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: all 0.3s ease;
    position: relative;
    font-weight: 400;
}

.main-content a[href^="#"]:hover {
    color: #5a6b7a;
    border-bottom-color: #5a6b7a;
    background-color: rgba(107, 124, 147, 0.05);
    padding: 0.1rem 0.3rem;
    border-radius: 3px;
}

/* 锚点目标样式 */
.main-content h1[id],
.main-content h2[id],
.main-content h3[id],
.main-content h4[id],
.main-content h5[id],
.main-content h6[id] {
    position: relative;
    scroll-margin-top: 2rem;
}

/* 锚点目标悬停效果 */
.main-content h1[id]:hover,
.main-content h2[id]:hover,
.main-content h3[id]:hover,
.main-content h4[id]:hover,
.main-content h5[id]:hover,
.main-content h6[id]:hover {
    background-color: rgba(107, 124, 147, 0.03);
    border-radius: 4px;
    padding: 0.2rem 0.5rem;
    margin: 0.2rem -0.5rem;
}

/* 锚点链接图标 */
.main-content a[href^="#"]::after {
    content: "🔗";
    font-size: 0.7em;
    margin-left: 0.3em;
    opacity: 0.6;
    transition: opacity 0.3s ease;
}

.main-content a[href^="#"]:hover::after {
    opacity: 1;
}

.main-content .external-link {
    position: relative;
}

.main-content .external-icon {
    font-size: 0.8em;
    margin-left: 0.3em;
    opacity: 0.7;
}

.main-content img {
    max-width: 100%;
    height: auto;
    border-radius: 2px;
    margin: 1.5rem 0;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.03);
    transition: transform 0.2s ease;
    display: block;
}

.main-content img:hover {
    transform: scale(1.005);
}

.main-content blockquote {
    border-left: 1px solid #e0e0e0;
    padding-left: 1rem;
    margin: 1.5rem 0;
    background-color: transparent;
    padding: 1rem 1.5rem;
    border-radius: 0;
    font-style: normal;
    color: #4a4a4a;
    font-weight: 300;
}

.main-content ul,
.main-content ol {
    margin-bottom: 1.2rem;
    padding-left: 1.5rem;
}

.main-content li {
    margin-bottom: 0.3rem;
    color: #3a3a3a;
}

.main-content code {
    background-color: #f8f8f8;
    padding: 0.15rem 0.3rem;
    border-radius: 2px;
    font-size: 0.85em;
    color: #2a2a2a;
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', 'Source Code Pro', 'Hiragino Kaku Gothic ProN', 'Hiragino Kaku Gothic Pro', monospace;
}

.main-content pre {
    background-color: #fafafa;
    padding: 1rem;
    border-radius: 2px;
    overflow-x: auto;
    margin: 1.5rem 0;
    border: 0.5px solid #f0f0f0;
}

.main-content pre code {
    background-color: transparent;
    padding: 0;
    color: #2a2a2a;
}

.page-content h2 {
    font-size: 1.6rem;
    font-weight: 500;
    color: #0a0a0a;
    margin: 2.5rem 0 1.2rem 0;
    letter-spacing: 0.01em;
    line-height: 1.5;
}

.page-content h3 {
    font-size: 1.4rem;
    font-weight: 500;
    color: #0a0a0a;
    margin: 2rem 0 1rem 0;
    letter-spacing: 0.01em;
    line-height: 1.5;
}

.page-content p {
    margin-bottom: 1.4rem;
    font-weight: 400;
    color: #1a1a1a;
    line-height: 1.8;
}

.page-content strong {
    font-weight: 600;
    color: #0a0a0a;
}

.page-content ul, .page-content ol {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
}

.page-content li {
    margin-bottom: 0.7rem;
    line-height: 1.8;
    color: #1a1a1a;
}

.page-content a {
    color: #6b7c93;
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-weight: 400;
}

.page-content a:hover {
    color: #8fa3b8;
    border-bottom-color: #8fa3b8;
    background-color: rgba(107, 124, 147, 0.05);
    padding: 0.1rem 0.3rem;
    border-radius: 3px;
}

.page-content img {
    max-width: 100%;
    height: auto;
    border-radius: 2px;
    margin: 1.5rem 0;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.03);
    transition: transform 0.2s ease;
    display: block;
}

.page-content img:hover {
    transform: scale(1.005);
}

.page-content code {
    background-color: #f8f8f8;
    padding: 0.15rem 0.3rem;
    border-radius: 2px;
    font-size: 0.85em;
    color: #2a2a2a;
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', 'Source Code Pro', 'Hiragino Kaku Gothic ProN', 'Hiragino Kaku Gothic Pro', monospace;
}

.page-content pre {
    background-color: #fafafa;
    padding: 1rem;
    border-radius: 2px;
    overflow-x: auto;
    margin: 1.5rem 0;
    border: 0.5px solid #f0f0f0;
}

.page-content pre code {
    background-color: transparent;
    padding: 0;
    color: #2a2a2a;
}

/* 筛选条件区域 - 统一清晰设计 */
.filter-section {
    margin: 2rem 0;
    padding: 2rem 0;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border-radius: 16px;
    border: 1px solid #e8e8e8;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
    position: relative;
    overflow: hidden;
}

.filter-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #6b7c93, #8fa3b8, #6b7c93);
}

.filter-container {
    max-width: 100%;
    padding: 0 2rem;
    position: relative;
    z-index: 1;
}

.filter-title {
    font-size: 1.3rem;
    font-weight: 400;
    color: #1a1a1a;
    margin-bottom: 2rem;
    letter-spacing: 0.01em;
    text-align: center;
    position: relative;
}

.filter-title::after {
    content: '';
    display: block;
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, #6b7c93, #8fa3b8);
    margin: 1rem auto 0;
    border-radius: 1px;
}

.filter-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 2.5rem;
    align-items: end;
    justify-content: center;
    max-width: 800px;
    margin: 0 auto;
}

.filter-group {
    display: flex;
    flex-direction: column;
    min-width: 200px;
    flex: 1;
}

.filter-label {
    font-size: 1rem;
    color: #2a2a2a;
    margin-bottom: 0.8rem;
    font-weight: 500;
    text-align: center;
    letter-spacing: 0.01em;
}

.filter-select {
    padding: 1rem 1.2rem;
    border: 2px solid #e8e8e8;
    border-radius: 10px;
    background: #ffffff;
    color: #1a1a1a;
    font-size: 1rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7c93' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 1rem center;
    background-repeat: no-repeat;
    background-size: 1.2rem;
    padding-right: 3rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.filter-select:hover {
    border-color: #6b7c93;
    box-shadow: 0 4px 12px rgba(107, 124, 147, 0.1);
    transform: translateY(-1px);
}

.filter-select:focus {
    outline: none;
    border-color: #6b7c93;
    box-shadow: 0 0 0 4px rgba(107, 124, 147, 0.15);
    transform: translateY(-1px);
}


.filter-results {
    margin: 2rem 0 1rem;
    padding: 1.2rem 0;
    font-size: 1rem;
    color: #4a4a4a;
    text-align: center;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border-radius: 8px;
    border: 1px solid #e8e8e8;
    font-weight: 500;
    letter-spacing: 0.01em;
}

.no-results {
    color: #8a8a8a;
    font-style: italic;
    font-weight: 400;
}

/* 类别卡片网格 - 极简清晰 */
.category-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
    margin: 2rem 0;
}

/* 类别卡片 - 统一清晰风格 */
.category-card {
    background: #ffffff;
    border-radius: 16px;
    overflow: visible;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid #f0f0f0;
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    min-height: 200px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    margin-bottom: 2rem;
    padding: 2.5rem;
    position: relative;
    text-decoration: none;
    color: inherit;
    cursor: pointer;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #6b7c93, #8fa3b8, #6b7c93);
    border-radius: 16px 16px 0 0;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.category-card:hover::before {
    opacity: 1;
}

.category-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    border-color: #6b7c93;
}

/* 可点击卡片的样式 */
.category-card[data-card-url] {
    cursor: pointer;
    transition: all 0.3s ease;
}

.category-card[data-card-url]:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    border-color: #e0e0e0;
}

.category-card[data-card-url]:active {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.card-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 1/1;
    width: 200px;
    flex-shrink: 0;
    margin-left: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    order: 2;
    border: 3px solid #ffffff;
}

.card-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(107, 124, 147, 0.1) 0%, rgba(143, 163, 184, 0.1) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 1;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 0;
}

.category-card:hover .card-image {
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.15);
    border-color: #6b7c93;
}

.category-card:hover .card-image::before {
    opacity: 1;
}

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

.card-content {
    padding: 0;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    order: 1;
}

/* 通用卡片标题样式 - 用于没有图片的情况 */
.card-title {
    font-size: 1.4rem;
    font-weight: 500;
    color: #1a1a1a;
    margin-bottom: 1rem;
    line-height: 1.4;
    letter-spacing: 0.01em;
    position: relative;
    display: block;
    visibility: visible;
    opacity: 1;
}

.card-title::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 30px;
    height: 2px;
    background: linear-gradient(90deg, #6b7c93, #8fa3b8);
    border-radius: 1px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.category-card:hover .card-title::after {
    opacity: 1;
}

.card-description {
    color: #4a4a4a;
    font-size: 1.05rem;
    line-height: 1.7;
    margin-bottom: 1.2rem;
    flex: 1;
    font-weight: 400;
    letter-spacing: 0.01em;
}

/* 卡片标签样式 - 统一清晰设计 */
.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-bottom: 1.5rem;
}

.tag {
    display: inline-block;
    padding: 0.6rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    line-height: 1.2;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    letter-spacing: 0.01em;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}

.tag-country {
    background: linear-gradient(135deg, #f0f8ff 0%, #e6f3ff 100%);
    color: #1d4ed8;
    border: 1px solid #bfdbfe;
}

.tag-people {
    background: linear-gradient(135deg, #faf5ff 0%, #f3e8ff 100%);
    color: #7c2d12;
    border: 1px solid #d8b4fe;
}

.tag-skill {
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
    color: #166534;
    border: 1px solid #bbf7d0;
}

.tag:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.read-more-btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    border: 2px solid #6b7c93;
    color: #6b7c93;
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    align-self: flex-start;
    margin-top: 0.5rem;
    letter-spacing: 0.01em;
    border-radius: 10px;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    box-shadow: 0 2px 8px rgba(107, 124, 147, 0.1);
    position: relative;
    overflow: hidden;
}

.read-more-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(107, 124, 147, 0.1), transparent);
    transition: left 0.5s ease;
}

.read-more-btn:hover::before {
    left: 100%;
}

.read-more-btn:hover {
    background: linear-gradient(135deg, #6b7c93 0%, #8fa3b8 100%);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(107, 124, 147, 0.3);
    border-color: #6b7c93;
}

/* 空状态 - 极简设计 */
.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 4rem 2rem;
    color: #6a6a6a;
    background: #fafafa;
    border-radius: 8px;
    border: 1px solid #f0f0f0;
}

.empty-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    opacity: 0.7;
}

.empty-state p {
    font-size: 1rem;
    margin: 0;
    font-weight: 400;
    letter-spacing: 0.01em;
}

/* 分页样式 - 极简清晰 */
.pagination {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    justify-content: center;
    margin: 4rem 0;
}

.pagination .pages {
    display: flex;
    gap: 0.8rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.pagination a {
    color: #6a6a6a;
    text-decoration: none;
    padding: 0.6rem 1rem;
    border-radius: 6px;
    transition: all 0.2s ease;
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid #f0f0f0;
}

.pagination a:hover {
    background: #f8f9fa;
    color: #1a1a1a;
    border-color: #e0e0e0;
    transform: translateY(-1px);
}

.pagination .current {
    color: #ffffff;
    background: #6b7c93;
    border-radius: 6px;
    padding: 0.6rem 1rem;
    font-weight: 500;
    border: 1px solid #6b7c93;
}

.pagination .disabled {
    color: #b0b0b0;
    border-color: #f0f0f0;
}

/* 响应式设计 - 极简清晰 */
@media (max-width: 768px) {
    .container {
        padding: 1.5rem 1.5rem 0;
    }
    
    .page-header {
        padding: 2.5rem 0 2rem;
        margin-bottom: 1.5rem;
        border-radius: 10px;
    }
    
    .page-title {
        font-size: 2rem;
        margin-bottom: 1.2rem;
    }
    
    .page-title::after {
        width: 50px;
        height: 2px;
        margin: 1.2rem auto 0;
    }
    
    /* 筛选条件响应式 */
    .filter-section {
        margin: 2rem 0;
        padding: 1.5rem;
    }
    
    .filter-controls {
        display: flex;
        flex-direction: row !important;
        align-items: center;
        gap: 0.6rem;
        justify-content: center;
        flex-wrap: nowrap;
    }
    
    .filter-group {
        min-width: 100px;
        flex: 1;
        max-width: 140px;
        display: flex;
        flex-direction: column;
    }
    
    .filter-select {
        padding: 0.7rem 0.9rem;
        font-size: 0.9rem;
        border-radius: 8px;
        background-position: right 0.8rem center;
        background-size: 1rem;
        padding-right: 2.2rem;
        width: 100%;
        min-width: 0;
        min-height: 42px;
    }
    
    .filter-actions {
        margin-left: 0;
        justify-content: center;
    }
    
    .filter-btn {
        flex: 1;
        text-align: center;
    }
    
    /* 三个正方形图片在移动设备上的响应式布局 */
    .page-hero-images {
        gap: 1.5rem;
        margin-top: 2rem;
        justify-content: center;
        padding: 0 1rem;
    }
    
    .hero-image-container {
        width: 180px;
        height: 180px;
        border-radius: 10px;
    }
    
    .page-content {
        padding: 1.5rem 0 2rem;
        font-size: 14px;
        line-height: 1.8;
        font-weight: 300;
    }
    
    .main-content {
        font-size: 14px;
        line-height: 1.8;
        font-weight: 300;
    }
    
    /* 卡片在移动端的优化布局 - 图片在上，标题覆盖在图片底部 */
    .category-card {
        flex-direction: column;
        margin-bottom: 4rem;
        align-items: stretch;
        min-height: auto;
        padding: 0;
        border-radius: 12px;
        overflow: hidden;
        position: relative;
        box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    }
    
    .card-image {
        width: 100%;
        height: 160px;
        margin: 0;
        aspect-ratio: auto;
        flex-shrink: 0;
        order: 1;
        border-radius: 0;
        overflow: hidden;
        position: relative;
    }
    
    .card-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.3s ease;
    }
    
    .card-content {
        padding: 1rem;
        flex: 1;
        min-width: 0;
        order: 2;
        background: #ffffff;
        margin-top: 0;
    }
    
    .card-image::after {
        content: attr(data-title);
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
        color: #ffffff;
        padding: 1.5rem 1rem 1rem;
        font-size: 0.95rem;
        line-height: 1.3;
        font-weight: 500;
        z-index: 2;
        text-shadow: 0 1px 3px rgba(0, 0, 0, 0.7);
        border-radius: 0 0 8px 8px;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    
    .card-title {
        display: none; /* 移动端隐藏内容区域的标题，使用图片上的标题 */
    }
    
    .card-description {
        font-size: 0.85rem;
        line-height: 1.4;
        word-wrap: break-word;
        overflow-wrap: break-word;
        margin-bottom: 0.6rem;
        color: #4a4a4a;
    }
    
    .card-tags {
        margin-bottom: 0.8rem;
    }
    
    .card-tag {
        font-size: 0.7rem;
        padding: 0.2rem 0.4rem;
        margin-right: 0.3rem;
        margin-bottom: 0.3rem;
    }
    
    .card-link {
        font-size: 0.75rem;
        padding: 0.35rem 0.7rem;
        align-self: flex-start;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 1rem 1rem 0;
    }
    
    /* 超小屏幕的筛选条件优化 */
    .filter-controls {
        gap: 0.6rem;
        padding: 0 0.5rem;
    }
    
    .filter-group {
        min-width: 85px;
        max-width: 140px;
    }
    
    .filter-select {
        padding: 0.6rem 0.8rem;
        font-size: 0.85rem;
        padding-right: 2rem;
        min-height: 38px;
    }
    
    .page-title {
        font-size: 1.8rem;
    }
    
    .page-title::after {
        width: 40px;
        height: 2px;
        margin: 1rem auto 0;
    }
    
    .page-content {
        padding: 1.2rem 0 1.5rem;
        font-size: 13px;
        line-height: 1.75;
        font-weight: 300;
    }
    
    .main-content {
        font-size: 13px;
        line-height: 1.75;
        font-weight: 300;
    }
    
    /* 三个正方形图片在小屏幕上的响应式布局 */
    .page-hero-images {
        gap: 0.8rem;
        margin-top: 1.5rem;
        justify-content: center;
        padding: 0 0.5rem;
        flex-wrap: nowrap;
        overflow-x: auto;
    }
    
    .hero-image-container {
        width: 140px;
        height: 140px;
        border-radius: 8px;
        flex-shrink: 0;
    }
    
    .category-card {
        padding: 0;
        margin-bottom: 3rem;
        flex-direction: column;
        text-align: left;
        border-radius: 10px;
        min-height: 140px;
        overflow: hidden;
        background: #ffffff;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        border: 1px solid #e8e8e8;
    }
    
    /* 在小屏幕上改为垂直布局 - 图片在上 */
    .card-image {
        width: 100%;
        height: 140px;
        margin: 0;
        order: 1;
        border-radius: 0;
        border: none;
        flex-shrink: 0;
        overflow: hidden;
        position: relative;
    }
    
    .card-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.3s ease;
    }
    
    .category-card:hover .card-image img {
        transform: scale(1.05);
    }
    
    .card-content {
        padding: 0.8rem;
        text-align: left;
        display: flex;
        flex-direction: column;
        order: 2;
        background: #ffffff;
        margin-top: 0;
    }
    
    
    .card-image .card-title {
        font-size: 0.85rem;
        line-height: 1.3;
        margin-bottom: 0;
        font-weight: 500;
        word-wrap: break-word;
        overflow-wrap: break-word;
        color: #ffffff;
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
        padding: 1.2rem 0.8rem 0.8rem;
        margin: 0;
        z-index: 2;
        text-shadow: 0 1px 3px rgba(0, 0, 0, 0.7);
        border-radius: 0 0 6px 6px;
    }
    
    .card-title {
        font-size: 0.9rem;
        line-height: 1.3;
        margin-bottom: 0.4rem;
        font-weight: 500;
        word-wrap: break-word;
        overflow-wrap: break-word;
        color: #333;
    }
    
    .card-description {
        font-size: 0.8rem;
        line-height: 1.4;
        margin-bottom: 0.6rem;
        color: #4a4a4a;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    
    .card-tags {
        display: none;
    }
    
    .read-more-btn {
        font-size: 0.7rem;
        padding: 0.3rem 0.6rem;
        margin: 0;
        border-radius: 4px;
        align-self: flex-start;
        background: #6b7c93;
        color: #ffffff;
        border: 1px solid #6b7c93;
        text-decoration: none;
        transition: all 0.3s ease;
    }
    
    .read-more-btn:hover {
        background: #5a6b7a;
        border-color: #5a6b7a;
        transform: translateY(-1px);
        box-shadow: 0 2px 8px rgba(107, 124, 147, 0.3);
    }
    
    .read-more-btn:active {
        background: linear-gradient(135deg, #6b7c93 0%, #8fa3b8 100%);
        color: #ffffff;
        transform: translateY(-1px);
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.category-card {
    animation: fadeInUp 0.5s ease-out;
}

.category-card:nth-child(1) { animation-delay: 0.1s; }
.category-card:nth-child(2) { animation-delay: 0.15s; }
.category-card:nth-child(3) { animation-delay: 0.2s; }
.category-card:nth-child(4) { animation-delay: 0.25s; }
.category-card:nth-child(5) { animation-delay: 0.3s; }
.category-card:nth-child(6) { animation-delay: 0.35s; }