* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #2563EB;
    --primary-light: #3B82F6;
    --primary-dark: #1D4ED8;
    --gray-50: #F8FAFC;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1E293B;
    --gray-900: #0F172A;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --radius: 12px;
}

/* ===== 基础样式 ===== */
body {
    font-family: 'Segoe UI', -apple-system, sans-serif;
    background: var(--gray-50);
    color: var(--gray-800);
    line-height: 1.6;
}

.container {
    max-width: 1366px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== 顶部菜单栏 ===== */
.header {
    background: white;
    border-bottom: 1px solid var(--gray-200);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
}

.logo i {
    font-size: 28px;
}

.header-nav {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.header-nav a {
    padding: 6px 16px;
    border-radius: 8px;
    color: var(--gray-600);
    text-decoration: none;
    font-size: 14px;
    transition: all .3s;
}

.header-nav a:hover,
.header-nav a.active {
    background: var(--gray-100);
    color: var(--primary);
}

.header-right {
    display: flex;
    gap: 8px;
}

.header-right button {
    background: none;
    border: none;
    padding: 8px 12px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 18px;
    color: var(--gray-600);
    transition: all .3s;
}

.header-right button:hover {
    background: var(--gray-100);
}

.search-dropdown {
    display: none;
    background: white;
    padding: 16px 20px;
    border-bottom: 1px solid var(--gray-200);
}

.search-dropdown.open {
    display: block;
}

.search-dropdown form {
    display: flex;
    max-width: 600px;
    margin: 0 auto;
}

.search-dropdown input {
    flex: 1;
    padding: 10px 16px;
    border: 1px solid var(--gray-200);
    border-radius: 8px 0 0 8px;
    font-size: 16px;
    outline: none;
}

.search-dropdown input:focus {
    border-color: var(--primary);
}

.search-dropdown button {
    padding: 10px 20px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 0 8px 8px 0;
    cursor: pointer;
}

/* ===== 主布局 ===== */
.main-wrapper {
    display: flex;
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    gap: 24px;
}

.sidebar {
    width: 260px;
    flex-shrink: 0;
    transition: transform .3s;
}

.sidebar-inner {
    background: white;
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 84px;
}

.sidebar-section {
    margin-bottom: 24px;
}

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

.sidebar-section h3 {
    font-size: 14px;
    color: var(--gray-600);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.sidebar-nav li {
    list-style: none;
}

.sidebar-nav a,
.sidebar-hot a {
    display: block;
    padding: 6px 12px;
    border-radius: 6px;
    color: var(--gray-700);
    text-decoration: none;
    font-size: 14px;
    transition: all .3s;
}

.sidebar-nav a:hover,
.sidebar-hot a:hover {
    background: var(--gray-100);
    color: var(--primary);
}

.sidebar-hot li {
    list-style: none;
    padding: 4px 0;
    border-bottom: 1px solid var(--gray-100);
}

.sidebar-hot li:last-child {
    border-bottom: none;
}

.main-content {
    flex: 1;
    min-width: 0;
    background: white;
    border-radius: var(--radius);
    padding: 32px 40px;
    box-shadow: var(--shadow-md);
}

/* ===== Hero ===== */
.hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: linear-gradient(135deg, #EEF2FF, #DBEAFE);
    border-radius: var(--radius);
    padding: 48px 56px;
    margin-bottom: 40px;
}

.hero-content h1 {
    font-size: 36px;
    color: var(--gray-900);
    margin-bottom: 12px;
}

.hero-content p {
    font-size: 18px;
    color: var(--gray-600);
    margin-bottom: 24px;
}

.btn-primary {
    display: inline-block;
    padding: 12px 28px;
    background: var(--primary);
    color: white;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all .3s;
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.hero-image {
    font-size: 120px;
    color: var(--primary-light);
    opacity: .5;
}

/* ===== 首页分类 ===== */
.section {
    margin-bottom: 40px;
}

.section-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--gray-900);
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 16px;
}

.category-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 24px 16px;
    background: var(--gray-50);
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--gray-700);
    transition: all .3s;
    border: 1px solid transparent;
}

.category-card:hover {
    border-color: var(--primary);
    background: white;
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.category-icon {
    font-size: 32px;
    color: var(--primary);
    margin-bottom: 8px;
}

/* ===== 首页文章卡片 ===== */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.article-card {
    background: var(--gray-50);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all .3s;
    border: 1px solid var(--gray-100);
    position: relative;
}

.article-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.article-cover {
    height: 160px;
    background-size: cover;
    background-position: center;
    background-color: var(--gray-200);
}

.article-cover.placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    color: var(--gray-300);
}

.article-body {
    padding: 16px 20px;
}

.article-body h3 {
    font-size: 16px;
    margin-bottom: 8px;
}

.article-body h3 a {
    color: var(--gray-900);
    text-decoration: none;
}

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

.article-body p {
    font-size: 14px;
    color: var(--gray-600);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-meta {
    display: flex;
    gap: 16px;
    font-size: 13px;
    color: var(--gray-600);
    margin-top: 12px;
}

/* ===== 文章卡片标签 ===== */
.article-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    color: white;
    z-index: 5;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.article-badge-top {
    background: linear-gradient(135deg, #F59E0B, #D97706);
}

.article-badge-essence {
    background: linear-gradient(135deg, #8B5CF6, #6D28D9);
}

.article-badge-normal {
    background: linear-gradient(135deg, #3B82F6, #2563EB);
}

.article-top {
    border: 2px solid #F59E0B;
}

.article-essence {
    border: 2px solid #8B5CF6;
}

.article-normal {
    border: 1px solid var(--gray-200);
}

/* ===== 文章详情 ===== */
.article-detail .article-header {
    border-bottom: 1px solid var(--gray-200);
    padding-bottom: 24px;
    margin-bottom: 24px;
}

.breadcrumb {
    font-size: 14px;
    color: var(--gray-600);
    margin-bottom: 12px;
}

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

.article-header h1 {
    font-size: 32px;
    color: var(--gray-900);
    margin-bottom: 12px;
}

.article-summary {
    background: var(--gray-50);
    padding: 16px 20px;
    border-radius: 8px;
    border-left: 4px solid var(--primary);
    color: var(--gray-600);
    margin-top: 12px;
}

.article-body-content {
    font-size: 16px;
    line-height: 1.8;
}

.article-body-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 16px 0;
}

.article-body-content h2 {
    margin: 24px 0 12px;
    font-size: 24px;
}

.article-body-content h3 {
    margin: 20px 0 10px;
    font-size: 20px;
}

.article-body-content p {
    margin-bottom: 16px;
}

.article-body-content blockquote {
    border-left: 4px solid var(--primary);
    padding: 12px 20px;
    background: var(--gray-50);
    border-radius: 0 8px 8px 0;
    margin: 16px 0;
}

.article-body-content ul,
.article-body-content ol {
    padding-left: 24px;
    margin-bottom: 16px;
}

.media-section {
    margin: 24px 0;
    padding: 20px;
    background: var(--gray-50);
    border-radius: var(--radius);
}

.media-section h4 {
    margin-bottom: 12px;
    color: var(--gray-700);
}

.media-section audio,
.media-section video {
    width: 100%;
    border-radius: 8px;
}

.pdf-viewer iframe {
    border: none;
    border-radius: 8px;
}

.related-articles {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--gray-200);
}

.related-articles h3 {
    margin-bottom: 12px;
}

.related-articles ul {
    list-style: none;
}

.related-articles li {
    padding: 6px 0;
}

.related-articles a {
    color: var(--gray-700);
    text-decoration: none;
}

.related-articles a:hover {
    color: var(--primary);
}

/* ===== 分类栏目列表布局 ===== */
.article-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.list-item {
    display: flex;
    align-items: stretch;
    gap: 20px;
    padding: 16px 0;
    border-bottom: 1px solid var(--gray-100);
    min-height: 100px;
}

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

.list-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-width: 0;
}

.list-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 4px;
}

.list-header h3 {
    flex: 1;
    font-size: 18px;
    margin: 0;
    line-height: 1.4;
    min-width: 0;
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.list-header h3 a {
    color: var(--gray-900);
    text-decoration: none;
    transition: color 0.3s;
}

.list-header h3 a:hover {
    color: var(--primary);
}

/* 图标标签 */
.list-icon {
    font-size: 14px;
    margin-left: 2px;
}

.list-icon-top {
    color: #F59E0B;
}

.list-icon-essence {
    color: #8B5CF6;
}

.list-content p {
    font-size: 14px;
    color: var(--gray-600);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin: 0 0 6px 0;
    line-height: 1.5;
}

.list-meta {
    font-size: 13px;
    color: var(--gray-600);
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.list-meta span {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.list-thumbnail {
    flex-shrink: 0;
    width: 140px;
    min-height: 80px;
    border-radius: 8px;
    overflow: hidden;
    background: var(--gray-200);
    align-self: stretch;
}

.list-thumbnail a {
    display: block;
    width: 100%;
    height: 100%;
}

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

.list-thumbnail img:hover {
    transform: scale(1.05);
}

.list-thumbnail.placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    color: var(--gray-300);
    font-size: 28px;
}

/* 分类栏目标签（备用） */
.list-badge {
    display: inline-block;
    padding: 1px 12px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    color: white;
    margin-left: 8px;
    vertical-align: middle;
}

.list-badge-top {
    background: linear-gradient(135deg, #F59E0B, #D97706);
}

.list-badge-essence {
    background: linear-gradient(135deg, #8B5CF6, #6D28D9);
}

/* ===== 分页 ===== */
.pagination {
    display: flex;
    gap: 6px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.pagination a {
    padding: 6px 14px;
    border-radius: 6px;
    border: 1px solid var(--gray-200);
    color: var(--gray-700);
    text-decoration: none;
    transition: all .3s;
}

.pagination a:hover {
    background: var(--gray-100);
}

.pagination a.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.empty-msg {
    padding: 40px 0;
    text-align: center;
    color: var(--gray-600);
}

.search-result-count {
    color: var(--gray-600);
    margin-bottom: 16px;
}

.page-title {
    font-size: 28px;
    margin-bottom: 20px;
    color: var(--gray-900);
}

/* ===== PDF 查看器 ===== */
.pdf-container {
    background: #f5f5f5;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--gray-200);
}

.pdf-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 16px;
    background: #e8e8e8;
    border-bottom: 1px solid #d0d0d0;
    flex-wrap: wrap;
    gap: 8px;
}

.pdf-filename {
    font-size: 14px;
    color: var(--gray-700);
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 500;
}

.pdf-controls {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.pdf-controls button {
    padding: 4px 10px;
    background: white;
    border: 1px solid #ccc;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s;
}

.pdf-controls button:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.pdf-controls #pdfPageInfo {
    font-size: 13px;
    color: var(--gray-700);
    min-width: 60px;
    text-align: center;
}

.btn-download-pdf {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    background: var(--primary);
    color: white;
    border-radius: 4px;
    text-decoration: none;
    font-size: 13px;
    transition: background 0.3s;
}

.btn-download-pdf:hover {
    background: var(--primary-dark);
    color: white;
}

.pdf-viewer {
    position: relative;
    min-height: 400px;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 20px;
    background: #e8e8e8;
    overflow: auto;
}

.pdf-viewer canvas {
    max-width: 100%;
    height: auto;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    background: white;
}

.pdf-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 16px;
    color: var(--gray-600);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.pdf-loading i {
    font-size: 32px;
    color: var(--primary);
}

/* ===== 独立页面 ===== */
.page-content {
    padding: 10px 0;
}

.page-content-header {
    border-bottom: 2px solid var(--gray-200);
    padding-bottom: 16px;
    margin-bottom: 24px;
}

.page-content-header .page-title {
    font-size: 28px;
    color: var(--gray-900);
    margin: 0;
}

.page-content-body {
    font-size: 16px;
    line-height: 1.8;
    color: var(--gray-800);
}

.page-content-body h2 {
    font-size: 24px;
    color: var(--gray-900);
    margin: 28px 0 12px 0;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--gray-100);
}

.page-content-body h3 {
    font-size: 20px;
    color: var(--gray-800);
    margin: 20px 0 10px 0;
}

.page-content-body p {
    margin-bottom: 14px;
}

.page-content-body ul {
    padding-left: 24px;
    margin-bottom: 14px;
}

.page-content-body ul li {
    margin-bottom: 6px;
}

.page-content-body hr {
    border: none;
    border-top: 1px solid var(--gray-200);
    margin: 30px 0;
}

.page-content-body a {
    color: var(--primary);
    text-decoration: none;
}

.page-content-body a:hover {
    text-decoration: underline;
}

/* ===== 联系我们 ===== */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px;
    margin: 16px 0 24px 0;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 16px 20px;
    background: var(--gray-50);
    border-radius: 10px;
    border: 1px solid var(--gray-200);
    transition: all 0.3s;
}

.contact-item:hover {
    border-color: var(--primary);
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.08);
}

.contact-item i {
    font-size: 24px;
    color: var(--primary);
    margin-top: 2px;
    width: 30px;
    text-align: center;
}

.contact-item strong {
    display: block;
    font-size: 14px;
    color: var(--gray-700);
}

.contact-item p {
    margin: 2px 0 0 0;
    font-size: 14px;
    color: var(--gray-600);
}

/* ===== Hero 幻灯区域 ===== */
.slider-container {
    position: relative !important;
    width: 100% !important;
    min-height: 320px !important;
    overflow: hidden !important;
    border-radius: 12px !important;
}

.slider-track {
    position: relative !important;
    width: 100% !important;
    min-height: 320px !important;
    height: 320px !important;
    overflow: hidden !important;
    display: block !important;
}

.hero-slide {
    position: absolute !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    height: 100% !important;
    min-height: 320px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    padding: 48px 56px !important;
    opacity: 0 !important;
    visibility: hidden !important;
    transition: opacity 0.8s ease, visibility 0.8s ease !important;
    z-index: 1 !important;
    border-radius: 12px !important;
    box-sizing: border-box !important;
    margin: 0 !important;
}

.hero-slide.active {
    opacity: 1 !important;
    visibility: visible !important;
    z-index: 10 !important;
}

.hero-slide[data-index="0"] {
    background: linear-gradient(135deg, #EEF2FF, #DBEAFE) !important;
}
.hero-slide[data-index="1"] {
    background: linear-gradient(135deg, #F0FDF4, #DCFCE7) !important;
}
.hero-slide[data-index="2"] {
    background: linear-gradient(135deg, #FEF3C7, #FDE68A) !important;
}
.hero-slide[data-index="3"] {
    background: linear-gradient(135deg, #FCE4EC, #F8BBD0) !important;
}
.hero-slide[data-index="4"] {
    background: linear-gradient(135deg, #E0F2FE, #BAE6FD) !important;
}

.hero-slide .hero-content {
    flex: 1 !important;
    z-index: 2 !important;
    padding-right: 30px !important;
}

.hero-slide .hero-content h1 {
    font-size: 36px !important;
    color: #0F172A !important;
    margin-bottom: 12px !important;
}

.hero-slide .hero-content p {
    font-size: 18px !important;
    color: #475569 !important;
    margin-bottom: 24px !important;
    max-width: 600px !important;
}

.hero-slide .hero-image {
    flex: 0 0 320px !important;
    width: 320px !important;
    height: 200px !important;
    margin-left: 20px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    overflow: hidden !important;
    border-radius: 12px !important;
    background: rgba(255, 255, 255, 0.4) !important;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08) !important;
}

.hero-slide .hero-image img {
    width: 100% !important;
    height: 100% !important;
    object-fit: cover !important;
    border-radius: 12px !important;
    display: block !important;
}

.hero-slide .hero-image i {
    font-size: 120px !important;
    color: #3B82F6 !important;
    opacity: 0.4 !important;
}

.slider-dots {
    position: absolute !important;
    bottom: 16px !important;
    left: 50% !important;
    transform: translateX(-50%) !important;
    display: flex !important;
    gap: 10px !important;
    z-index: 20 !important;
}

.slider-dots .dot {
    width: 12px !important;
    height: 12px !important;
    border-radius: 50% !important;
    background: rgba(255, 255, 255, 0.7) !important;
    cursor: pointer !important;
    transition: all 0.3s !important;
    border: 2px solid rgba(0, 0, 0, 0.08) !important;
    padding: 0 !important;
}

.slider-dots .dot.active {
    background: #2563EB !important;
    transform: scale(1.2) !important;
    border-color: #2563EB !important;
}

.slider-arrow {
    position: absolute !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
    width: 44px !important;
    height: 44px !important;
    border-radius: 50% !important;
    background: rgba(255, 255, 255, 0.85) !important;
    border: none !important;
    cursor: pointer !important;
    font-size: 18px !important;
    color: #334155 !important;
    transition: all 0.3s !important;
    z-index: 20 !important;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.12) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
}

.slider-arrow.prev {
    left: 16px !important;
}
.slider-arrow.next {
    right: 16px !important;
}

/* ===== Footer ===== */
.footer {
    background: white;
    border-top: 1px solid var(--gray-200);
    padding: 32px 0;
    margin-top: 20px;
}

.footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-info p {
    color: var(--gray-600);
    font-size: 14px;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: var(--gray-600);
    text-decoration: none;
    font-size: 14px;
}

.footer-links a:hover {
    color: var(--primary);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .header-nav {
        display: none;
    }

    .sidebar {
        position: fixed;
        top: 64px;
        left: 0;
        height: calc(100vh - 64px);
        background: white;
        transform: translateX(-100%);
        z-index: 999;
        box-shadow: var(--shadow-md);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .main-content {
        padding: 20px;
    }

    .hero {
        flex-direction: column;
        text-align: center;
        padding: 32px 24px;
    }

    .hero-image {
        font-size: 64px;
        margin-top: 16px;
    }

    .grid-4 {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }
}

@media (max-width: 768px) {
    .pdf-toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .pdf-controls {
        justify-content: center;
    }

    .pdf-viewer {
        padding: 10px;
        min-height: 300px;
    }
}

@media (max-width: 640px) {
    .main-wrapper {
        padding: 12px;
    }

    .main-content {
        padding: 16px;
    }

    .hero h1 {
        font-size: 24px;
    }

    .grid-3 {
        grid-template-columns: 1fr;
    }

    .article-header h1 {
        font-size: 24px;
    }

    .page-content-header .page-title {
        font-size: 22px;
    }

    .page-content-body h2 {
        font-size: 20px;
    }

    .page-content-body h3 {
        font-size: 18px;
    }

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

    /* 分类栏目列表响应式 */
    .list-item {
        flex-direction: column;
        gap: 12px;
        padding: 14px 0;
    }

    .list-thumbnail {
        width: 100%;
        min-height: 160px;
        align-self: stretch;
    }

    .list-content h3 {
        font-size: 16px;
    }

    .list-meta {
        font-size: 12px;
        gap: 10px;
    }
}