/* ============================================
   版权所有 © 2026 墨迹语CMS 
   https://www.mojiyucms.com/
   ============================================ */

/* ====================== CSS变量定义 ====================== */
:root {
    --primary: #C8102E;
    /* 中国红 */
    --primary-light: #E53935;
    --primary-dark: #8B0000;
    --secondary: #DAA520;
    /* 金色 */
    --text: #2C3E50;
    --text-light: #7F8C8D;
    --background: #FDFCF8;
    /* 宣纸白 */
    --background-light: #F5F3EE;
    --border: #D4C5B0;
    --link: #C8102E;
    --link-hover: #8B0000;
    --success: #27AE60;
    --warning: #F39C12;
    --danger: #E74C3C;
}

/* ====================== 基础重置与排版 ====================== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body.yixue5-body,
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 16px;
    line-height: 1.8;
    color: var(--text);
    background-color: var(--background);
    overflow-x: hidden;
}

a {
    color: var(--link);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--link-hover);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul,
li {
    list-style: none;
}

/* ====================== 容器与布局 ====================== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

@media (max-width: 768px) {
    .container {
        max-width: 100%;
        padding: 0 16px;
    }
}

@media (max-width: 430px) {
    .container {
        padding: 0 12px;
    }
}

.yixue5-home-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 24px;
    margin-top: 32px;
}

.yixue5-sidebar-left,
.yixue5-sidebar-right {
    align-self: flex-start;
}

.yixue5-main-content {
    min-width: 0;
}

@media (max-width: 1024px) {
    .yixue5-home-layout {
        grid-template-columns: 1fr;
    }

    .yixue5-sidebar-left,
    .yixue5-sidebar-right {
        width: 100%;
        margin-top: 24px;
    }
}

/* ====================== Header 头部 ====================== */
.yixue5-header {
    background: #FFFFFF;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.yixue5-header-topbar {
    background: var(--background-light);
    border-bottom: 1px solid var(--border);
    font-size: 13px;
    color: var(--text-light);
}

.yixue5-header-topbar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 0;
}

.yixue5-header-main {
    padding: 14px 0;
}

.yixue5-header-main-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.site-branding {
    display: flex;
    align-items: center;
    gap: 12px;
}

.site-branding .site-logo {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid var(--secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-weight: 700;
    background: #fff;
}

.site-name {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-dark);
    letter-spacing: 1px;
}

.site-tagline {
    font-size: 13px;
    color: var(--text-light);
}

.yixue5-nav-wrap {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.main-nav {
    display: flex;
    gap: 24px;
}

.main-nav a {
    position: relative;
    padding: 6px 4px;
    font-size: 15px;
    color: var(--text);
}

.main-nav a::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -4px;
    height: 2px;
    background: linear-gradient(90deg, var(--secondary), var(--primary));
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.2s ease;
}

.main-nav a:hover::after,
.main-nav a.active::after {
    transform: scaleX(1);
}

.main-nav a.active {
    color: var(--primary);
    font-weight: 600;
}

.yixue5-header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.search-form {
    display: flex;
    align-items: center;
    border-radius: 20px;
    overflow: hidden;
    border: none;
    background: #fff;
    flex-shrink: 0;
}

.search-form input {
    border: none;
    padding: 6px 12px;
    font-size: 14px;
    width: 200px;
    min-width: 0;
    outline: none;
    background: transparent;
}

.search-form button {
    border: none;
    background: var(--primary);
    color: #fff;
    padding: 6px 12px;
    cursor: pointer;
    font-size: 14px;
    transition: background 0.2s ease;
    flex-shrink: 0;
}

.search-form button:hover {
    background: var(--primary-dark);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 22px;
    color: var(--primary);
    cursor: pointer;
}

@media (max-width: 992px) {
    .yixue5-header-main-inner {
        justify-content: space-between;
    }

    .yixue5-nav-wrap {
        display: none;
    }

    .search-form {
        display: none;
    }

    .mobile-menu-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }
}

/* 头部响应式：平板和手机 */
@media (max-width: 768px) {
    .yixue5-header-main {
        padding: 10px 0;
    }

    .site-branding {
        gap: 8px;
    }

    .site-branding .site-logo {
        width: 36px;
        height: 36px;
        font-size: 14px;
    }

    .site-name {
        font-size: 18px;
    }

    .site-tagline {
        font-size: 11px;
    }

    /* 头部搜索框平板端优化 */
    .yixue5-header-actions .search-form {
        max-width: 200px;
    }

    .yixue5-header-actions .search-form input {
        width: 140px;
        padding: 6px 10px;
        font-size: 13px;
    }

    .yixue5-header-actions .search-form button {
        padding: 6px 10px;
        font-size: 13px;
    }
}

@media (max-width: 430px) {
    .yixue5-header-main {
        padding: 8px 0;
    }

    .site-branding {
        gap: 6px;
    }

    .site-branding .site-logo {
        width: 32px;
        height: 32px;
        font-size: 12px;
    }

    .site-name {
        font-size: 16px;
        letter-spacing: 0;
    }

    .site-tagline {
        display: none;
    }

    .mobile-menu-toggle {
        font-size: 20px;
    }

    /* 头部搜索框手机端优化 */
    .yixue5-header-actions .search-form {
        max-width: 180px;
    }

    .yixue5-header-actions .search-form input {
        width: 120px;
        padding: 6px 10px;
        font-size: 13px;
    }

    .yixue5-header-actions .search-form button {
        padding: 6px 10px;
        font-size: 13px;
    }
}

/* 移动端抽屉菜单 */
.mobile-menu {
    position: fixed;
    right: -320px;
    top: 0;
    height: 100vh;
    width: 300px;
    background: #fff;
    box-shadow: -4px 0 16px rgba(0, 0, 0, 0.15);
    transition: right 0.25s ease;
    z-index: 9999;
    padding: 20px 20px 40px;
    overflow-y: auto;
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu .close-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    background: none;
    border: none;
    font-size: 22px;
    color: var(--text);
    cursor: pointer;
}

.mobile-menu-header {
    margin-top: 32px;
    margin-bottom: 16px;
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-dark);
}

.mobile-menu-links a {
    display: block;
    padding: 10px 4px;
    border-bottom: 1px solid var(--border);
    font-size: 15px;
    color: var(--text);
}

.mobile-menu-links a.active {
    color: var(--primary);
    background: rgba(200, 16, 46, 0.05);
}

@media (max-width: 992px) {
    .mobile-menu-overlay {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.25);
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.25s ease;
        z-index: 9998;
    }

    .mobile-menu-overlay.active {
        opacity: 1;
        pointer-events: auto;
    }
}

/* ====================== 功能金刚区 ====================== */
.yixue5-function-section {
    padding: 24px 0 16px;
}

.yixue5-function-grid-wrap {
    background: #FFFFFF;
}

.function-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
    padding: 16px 0 24px;
}

.func-item {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 8px;
    background: linear-gradient(145deg, #FFFFFF, var(--background-light));
    border-radius: 12px;
    border: 1px solid rgba(218, 165, 32, 0.35);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
    color: var(--text);
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.func-item i {
    font-size: 22px;
    color: var(--primary);
}

.func-item span {
    font-size: 14px;
}

.func-item::before {
    content: "";
    position: absolute;
    inset: 4px;
    border-radius: 10px;
    border: 1px dashed rgba(218, 165, 32, 0.25);
    pointer-events: none;
}

.func-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
    border-color: rgba(200, 16, 46, 0.7);
}

@media (max-width: 768px) {
    .function-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 14px;
    }
}

@media (max-width: 430px) {
    .function-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .func-item {
        padding: 12px 4px;
    }
}

/* ====================== 焦点推荐区 ====================== */
.yixue5-feature-section {
    margin-top: 24px;
}

.yixue5-feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.yixue5-feature-item {
    position: relative;
    overflow: hidden;
    border-radius: 14px;
    background: #000;
    color: #fff;
}

.yixue5-feature-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.yixue5-feature-content {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 18px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.65), transparent);
}

.yixue5-feature-content h2 {
    font-size: 20px;
    margin-bottom: 6px;
    color: #fff;
}

.yixue5-feature-link {
    display: block;
    height: 100%;
    color: inherit;
}

.yixue5-feature-link:hover h2 {
    color: var(--secondary);
}

.yixue5-feature-content p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.85);
    max-height: 3.6em;
    overflow: hidden;
}

@media (max-width: 768px) {
    .yixue5-feature-grid {
        grid-template-columns: 1fr;
    }
}

/* ====================== 楼层区 ====================== */
.floor-section {
    margin-top: 32px;
    padding: 20px 0 12px;
    border-top: 1px solid var(--border);
}

.floor-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 16px;
}

.floor-header h2 {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-dark);
    position: relative;
    padding-left: 10px;
}

.floor-header h2::before {
    content: "";
    position: absolute;
    left: 0;
    top: 4px;
    bottom: 4px;
    width: 3px;
    background: linear-gradient(180deg, var(--secondary), var(--primary));
}

.more-link {
    font-size: 14px;
    color: var(--text-light);
}

.more-link i {
    margin-left: 4px;
}

.floor-articles {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 24px;
}

.floor-article-item {
    display: flex;
    gap: 16px;
    padding: 12px 10px;
    border-radius: 12px;
    background: #FFFFFF;
    box-shadow: 0 1px 6px rgba(0, 0, 0, 0.04);
}

.article-thumb {
    width: 180px;
    flex-shrink: 0;
}

.article-info h3 {
    font-size: 16px;
    margin-bottom: 6px;
}

.article-info h3 a {
    color: var(--text);
}

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

.article-desc {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 8px;
}

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

@media (max-width: 768px) {
    .floor-article-item {
        flex-direction: column;
    }

    .article-thumb {
        width: 100%;
    }
}

.floor-articles .floor-article-item:nth-child(n+7) {
    display: none;
}

@media (max-width: 768px) {
    .floor-articles {
        grid-template-columns: 1fr;
    }
}

/* ====================== Sidebar 侧边栏 ====================== */
.yixue5-sidebar {
    width: 100%;
}

.yixue5-sidebar .sidebar-widget {
    background: #FFFFFF;
    border-radius: 14px;
    padding: 18px 16px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
}

.yixue5-sidebar .sidebar-widget h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 14px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.yixue5-sidebar .sidebar-widget h3 i {
    color: var(--primary);
}

.yixue5-sidebar .sidebar-list,
.yixue5-sidebar .sidebar-list-thumb,
.yixue5-sidebar .sidebar-list-compact {
    list-style: none;
}

.yixue5-sidebar .sidebar-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
}

.yixue5-sidebar .sidebar-item:last-child {
    border-bottom: none;
}

.yixue5-sidebar .item-index {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: 1px solid var(--secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: var(--primary);
}

.yixue5-sidebar .sidebar-item a {
    flex: 1;
    font-size: 14px;
    color: var(--text);
}

.yixue5-sidebar .sidebar-item a:hover {
    color: var(--primary);
}

.yixue5-sidebar .sidebar-item time {
    font-size: 12px;
    color: var(--text-light);
}

.yixue5-sidebar .sidebar-item-thumb {
    display: flex;
    gap: 10px;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
}

.yixue5-sidebar .sidebar-item-thumb:last-child {
    border-bottom: none;
}

.yixue5-sidebar .sidebar-item-thumb img {
    width: 80px;
    height: 60px;
    object-fit: cover;
    border-radius: 6px;
}

.yixue5-sidebar .sidebar-item-thumb .item-content a {
    font-size: 14px;
    color: var(--text);
}

.yixue5-sidebar .sidebar-item-thumb .item-content time {
    display: block;
    font-size: 12px;
    color: var(--text-light);
    margin-top: 4px;
}

/* 最新更新：紧凑列表布局 */
.yixue5-sidebar .sidebar-list-compact {
    display: block;
}

.yixue5-sidebar .sidebar-item-compact {
    padding: 0;
    border-bottom: none;
}

.yixue5-sidebar .sidebar-item-compact a {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
    color: var(--text);
    text-decoration: none;
    transition: color 0.2s ease;
}

.yixue5-sidebar .sidebar-item-compact:last-child a {
    border-bottom: none;
}

.yixue5-sidebar .sidebar-item-compact a:hover {
    color: var(--primary);
}

.yixue5-sidebar .sidebar-item-compact a:hover .latest-icon {
    color: var(--secondary);
}

.yixue5-sidebar .latest-icon {
    flex-shrink: 0;
    margin-top: 3px;
    font-size: 12px;
    color: var(--primary);
    transition: color 0.2s ease;
}

.yixue5-sidebar .item-content {
    flex: 1;
    min-width: 0;
}

.yixue5-sidebar .item-title {
    display: block;
    font-size: 14px;
    color: inherit;
    line-height: 1.5;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.yixue5-sidebar .item-meta {
    display: flex;
    gap: 8px;
    font-size: 11px;
    color: var(--text-light);
    margin-top: 4px;
}

.yixue5-sidebar .item-category {
    padding: 2px 6px;
    border-radius: 3px;
    background: rgba(200, 16, 46, 0.08);
    color: var(--primary);
}

/* ====================== Footer 页脚 ====================== */
.yixue5-footer {
    margin-top: 60px;
    background: #1E1E1E;
    color: rgba(255, 255, 255, 0.85);
}

/* ====================== List Page 列表页 ====================== */
.yixue5-list-page {
    padding-top: 24px;
    padding-bottom: 40px;
}

/* 面包屑导航 */
.yixue5-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 0;
    font-size: 14px;
    color: var(--text-light);
}

.yixue5-breadcrumb a {
    color: var(--text-light);
    transition: color 0.2s ease;
}

.yixue5-breadcrumb a:hover {
    color: var(--primary);
}

.yixue5-breadcrumb .separator {
    color: var(--border);
}

.yixue5-breadcrumb .current {
    color: var(--text);
    font-weight: 500;
}

/* 主布局 */
.yixue5-list-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 24px;
    margin-top: 20px;
}

.yixue5-list-main {
    min-width: 0;
}

/* 栏目标题区 */
.category-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 24px;
    background: #FFFFFF;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
    margin-bottom: 24px;
}

.category-info h1 {
    font-size: 28px;
    color: var(--primary-dark);
    margin-bottom: 8px;
    font-weight: 600;
}

.category-desc {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
}

/* 视图切换按钮 */
.view-toggle {
    display: flex;
    gap: 8px;
    background: var(--background-light);
    padding: 4px;
    border-radius: 8px;
}

.toggle-btn {
    width: 40px;
    height: 40px;
    border: none;
    background: transparent;
    color: var(--text-light);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 16px;
}

.toggle-btn:hover {
    color: var(--primary);
    background: rgba(200, 16, 46, 0.08);
}

.toggle-btn.active {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 2px 8px rgba(200, 16, 46, 0.3);
}

/* 文章列表容器 */
.article-list-container {
    display: grid;
    gap: 20px;
    transition: all 0.3s ease;
}

/* 卡片视图：两列网格 */
.article-list-container[data-view="card"] {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

/* 列表视图：单列 */
.article-list-container[data-view="list"] {
    grid-template-columns: 1fr;
}

/* 文章项 */
.article-item {
    background: #FFFFFF;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
    transition: all 0.3s ease;
}

.article-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.article-link {
    display: flex;
    flex-direction: column;
    height: 100%;
    color: var(--text);
}

/* 卡片视图下的文章项 */
.article-list-container[data-view="card"] .article-link {
    flex-direction: column;
}

/* 列表视图下的文章项 */
.article-list-container[data-view="list"] .article-link {
    flex-direction: row;
    align-items: flex-start;
}

.article-list-container[data-view="list"] .article-thumb {
    width: 280px;
    height: 180px;
    flex-shrink: 0;
}

.article-list-container[data-view="list"] .article-content {
    flex: 1;
    padding: 20px 24px;
}

/* 缩略图 */
.article-list-container .article-thumb {
    position: relative;
    width: 100%;
    height: 220px;
    overflow: hidden;
    background: var(--background-light);
}

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

.article-item:hover .article-list-container .article-thumb img {
    transform: scale(1.05);
}

.thumb-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.thumb-overlay i {
    font-size: 32px;
    color: #fff;
}

.article-item:hover .thumb-overlay {
    opacity: 1;
}

/* 卡片视图下的缩略图圆角 */
.article-list-container[data-view="card"] .article-thumb {
    border-radius: 12px 12px 0 0;
}

/* 列表视图下的缩略图 */
.article-list-container[data-view="list"] .article-thumb {
    border-radius: 8px;
}

/* 无图占位 */
.article-list-container .article-thumb.no-image {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f5f3ee 0%, #e8e4da 100%);
}

.article-list-container .article-thumb .placeholder {
    font-size: 48px;
    color: var(--border);
}

/* 文章内容 */
.article-list-container .article-content {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.article-list-container .article-title {
    font-size: 18px;
    font-weight: 600;
    line-height: 1.5;
    margin-bottom: 10px;
    color: var(--text);
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    position: relative;
    padding-left: 12px;
}

.article-list-container .article-title::before {
    content: "";
    position: absolute;
    left: 0;
    top: 4px;
    width: 4px;
    height: calc(100% - 8px);
    min-height: 16px;
    background: var(--secondary);
    border-radius: 2px;
}

.article-item:hover .article-list-container .article-title {
    color: var(--primary);
}

.article-list-container .article-desc {
    font-size: 14px;
    line-height: 1.6;
    color: #666666;
    margin-bottom: 12px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    flex: 1;
}

/* 列表视图下描述显示更多行 */
.article-list-container[data-view="list"] .article-desc {
    -webkit-line-clamp: 3;
}

.article-list-container .article-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 13px;
    color: var(--text-light);
    margin-top: auto;
}

.article-list-container .article-meta i {
    margin-right: 4px;
}

.article-list-container .article-meta time,
.article-list-container .article-meta .views {
    display: flex;
    align-items: center;
}

/* 分页 */
.pagination-wrapper {
    margin-top: 40px;
    display: flex;
    justify-content: center;
}

/* 分页样式覆盖 */
.yixue5-list-main .pagination {
    margin: 40px 0;
    display: flex;
    gap: 8px;
}

.yixue5-list-main .pagination a,
.yixue5-list-main .pagination span {
    background: var(--primary) !important;
    color: #fff !important;
    padding: 8px 16px;
    border-radius: 6px;
    border: none !important;
    transition: all 0.3s ease;
}

.yixue5-list-main .pagination a:hover {
    background: var(--primary-dark) !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(200, 16, 46, 0.3);
}

.yixue5-list-main .pagination .current {
    background: var(--secondary) !important;
    color: var(--text) !important;
    font-weight: 600;
}

/* 无数据 */
.no-data {
    text-align: center;
    padding: 80px 20px;
    background: #FFFFFF;
    border-radius: 12px;
}

.no-data i {
    font-size: 64px;
    color: var(--border);
    margin-bottom: 16px;
}

.no-data p {
    font-size: 16px;
    color: var(--text-light);
}

/* 响应式：平板 */
@media (max-width: 1024px) {
    .yixue5-list-layout {
        grid-template-columns: 1fr;
    }

    .yixue5-list-sidebar {
        width: 100%;
        margin-top: 24px;
    }
}

/* 响应式：移动端 */
@media (max-width: 768px) {
    .article-list-container[data-view="card"] {
        grid-template-columns: 1fr;
    }

    .article-list-container[data-view="list"] .article-link {
        flex-direction: column;
    }

    .article-list-container[data-view="list"] .article-thumb {
        width: 100%;
        height: 220px;
    }

    .category-header {
        flex-direction: column;
        gap: 16px;
    }

    .category-info h1 {
        font-size: 24px;
    }

    /* 面包屑响应式：平板 */
    .yixue5-breadcrumb {
        flex-wrap: wrap;
        font-size: 13px;
        padding: 10px 0;
    }

    .yixue5-breadcrumb .current {
        flex: 1 1 100%;
        margin-top: 4px;
    }
}

/* 面包屑响应式：手机 */
@media (max-width: 430px) {
    .yixue5-breadcrumb {
        font-size: 14px;
        gap: 6px;
        flex-wrap: nowrap;
        overflow: hidden;
    }

    .yixue5-breadcrumb a {
        flex-shrink: 0;
        white-space: nowrap;
    }

    .yixue5-breadcrumb .separator {
        flex-shrink: 0;
    }

    .yixue5-breadcrumb .current {
        flex: 1;
        min-width: 0;
        font-size: 14px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
}

/* ====================== Footer 页脚 ====================== */
.yixue5-footer {
    margin-top: 60px;
    background: #1E1E1E;
    color: rgba(255, 255, 255, 0.85);
}

.footer-branches {
    padding: 40px 0 30px;
    background: rgba(200, 16, 46, 0.08);
}

.footer-branches h3 {
    font-size: 18px;
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-branches .branch-links {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 15px;
}

.footer-branches .branch-links a {
    padding: 8px 10px;
    border-radius: 6px;
    background: rgba(0, 0, 0, 0.1);
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
}

.footer-links {
    padding: 30px 0;
    background: rgba(0, 0, 0, 0.85);
}

.footer-links h3 {
    font-size: 16px;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-link-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.footer-link-list a {
    font-size: 13px;
    padding: 6px 10px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.06);
    color: rgba(255, 255, 255, 0.8);
}

.footer-bottom {
    padding: 22px 0 26px;
    text-align: center;
    background: #111;
}

.footer-bottom .copyright {
    font-size: 13px;
    line-height: 1.7;
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: underline;
}

.footer-bottom a:hover {
    color: #ffffff;
}

/* ====================== Detail Page 详情页 ====================== */
/* 阅读进度条 */
.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 100%);
    z-index: 9999;
    transition: width 0.1s ease;
}

.yixue5-detail-page {
    padding-top: 24px;
    padding-bottom: 40px;
}

/* 主布局 */
.yixue5-detail-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 24px;
    /*margin-top: 20px;*/
}

.yixue5-detail-main {
    min-width: 0;
}

/* 文章主体 */
.article-detail {
    background: #FFFFFF;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
    margin-bottom: 24px;
}

/* 文章头部 */
.article-header {
    border-bottom: 2px solid var(--secondary);
    padding-bottom: 20px;
    margin-bottom: 30px;
    position: relative;
}

.article-header::after {
    content: "";
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 80px;
    height: 2px;
    background: var(--primary);
}

.article-title {
    font-size: 32px;
    font-weight: 600;
    line-height: 1.4;
    color: var(--text);
    margin-bottom: 16px;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    font-size: 14px;
    color: var(--text-light);
}

.article-meta .meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.article-meta .meta-item i {
    color: var(--secondary);
}

.article-meta .meta-item a {
    color: var(--text-light);
}

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

/* 封面图 */
.article-cover {
    margin: 30px 0;
    border-radius: 12px;
    overflow: hidden;
}

.article-cover img {
    width: 100%;
    height: auto;
    display: block;
}

/* 正文内容样式 */
.article-content {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text);
}

.article-content p {
    margin-bottom: 1.5em;
    text-align: justify;
}

.article-content img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 2em auto;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.article-content h2,
.article-content h3,
.article-content h4 {
    /* margin-top: 2em; */
    margin-bottom: 1em;
    font-weight: 600;
    color: var(--primary-dark);
    position: relative;
    padding-left: 16px;
}

.article-content h2::before,
.article-content h3::before,
.article-content h4::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 20px;
    background: var(--secondary);
    border-radius: 2px;
}

.article-content h2 {
    font-size: 24px;
}

.article-content h3 {
    font-size: 20px;
}

.article-content h4 {
    font-size: 18px;
}

.article-content blockquote {
    border-left: 4px solid var(--primary);
    background: var(--background-light);
    padding: 16px 20px;
    margin: 1.5em 0;
    font-style: italic;
    color: var(--text-light);
}

.article-content code {
    background: #f5f5f5;
    padding: 3px 8px;
    border-radius: 4px;
    font-family: 'Courier New', Consolas, monospace;
    font-size: 14px;
    color: var(--primary);
}

.article-content pre {
    background: #2d2d2d;
    color: #f8f8f2;
    padding: 20px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 1.5em 0;
}

.article-content pre code {
    background: none;
    padding: 0;
    color: inherit;
}

.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5em 0;
    display: table;
    overflow-x: auto;
}

.article-content table th,
.article-content table td {
    border: 1px solid var(--border);
    padding: 12px 16px;
    text-align: left;
    min-width: 80px;
}

.article-content table th {
    background: var(--background-light);
    font-weight: 600;
    color: var(--text);
    text-align: center;
    border-bottom: 2px solid var(--primary);
}

/* 表格第一行特殊样式（.firstRow） */
.article-content table tr.firstRow td {
    background: var(--background-light);
    font-weight: 600;
    color: var(--text);
    text-align: center;
    border-bottom: 2px solid var(--primary);
}

.article-content table tr:nth-child(even) {
    background: rgba(245, 243, 238, 0.5);
}

.article-content table tr:hover {
    background: rgba(218, 165, 32, 0.1);
}

/* 表格响应式处理 */
@media (max-width: 768px) {
    .article-content table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .article-content table th,
    .article-content table td {
        min-width: 60px;
        padding: 10px 12px;
        font-size: 14px;
    }
}

.article-content ul,
.article-content ol {
    margin: 1em 0;
    padding-left: 2em;
}

.article-content ul li,
.article-content ol li {
    margin-bottom: 0.5em;
}

.article-content a {
    color: var(--primary);
    text-decoration: underline;
}

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

/* 上下篇导航 */
.article-nav {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.nav-item {
    background: #FFFFFF;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
    overflow: hidden;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    color: var(--text);
    transition: all 0.3s ease;
}

.nav-link:hover {
    background: var(--background-light);
    color: var(--primary);
}

.nav-link i {
    font-size: 20px;
    color: var(--secondary);
    transition: transform 0.3s ease;
}

.prev-nav .nav-link:hover i {
    transform: translateX(-4px);
}

.next-nav .nav-link:hover i {
    transform: translateX(4px);
}

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

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

.nav-label {
    display: block;
    font-size: 12px;
    color: var(--text-light);
    margin-bottom: 6px;
}

.nav-title {
    display: block;
    font-size: 15px;
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.no-article {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 20px;
    color: var(--text-light);
    font-size: 14px;
}

.no-article i {
    color: var(--border);
}

/* 相关文章推荐 */
.related-articles {
    background: #FFFFFF;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
}

.related-articles .section-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.related-articles .section-title i {
    color: var(--secondary);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.related-card {
    background: #FFFFFF;
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.3s ease;
    color: var(--text);
}

.related-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
    border-color: var(--primary);
}

.card-thumb {
    position: relative;
    width: 100%;
    height: 140px;
    overflow: hidden;
    background: var(--background-light);
}

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

.related-card:hover .card-thumb img {
    transform: scale(1.05);
}

.card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.card-overlay i {
    font-size: 24px;
    color: #fff;
}

.related-card:hover .card-overlay {
    opacity: 1;
}

.card-thumb.no-thumb {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f5f3ee 0%, #e8e4da 100%);
}

.thumb-placeholder i {
    font-size: 40px;
    color: var(--border);
}

.card-content {
    padding: 16px;
}

.card-title {
    font-size: 14px;
    font-weight: 500;
    line-height: 1.5;
    margin-bottom: 8px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.card-date {
    font-size: 12px;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 4px;
}

/* 响应式：平板 */
@media (max-width: 1024px) {
    .yixue5-detail-layout {
        grid-template-columns: 1fr;
    }

    .yixue5-detail-sidebar {
        width: 100%;
        margin-top: 24px;
    }

    .related-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

/* 响应式：移动端 */
@media (max-width: 768px) {
    .article-detail {
        padding: 24px 20px;
    }

    .article-title {
        font-size: 24px;
    }

    .article-meta {
        flex-wrap: nowrap;
        gap: 12px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .article-meta .meta-item {
        flex-shrink: 0;
        white-space: nowrap;
    }

    .article-nav {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 430px) {
    .related-grid {
        grid-template-columns: 1fr;
    }

    .related-articles {
        padding: 20px 16px;
    }
}

/* ====================== Search Page 搜索页 ====================== */
/* 搜索页布局 */
.yixue5-search-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 24px;
    margin-top: 32px;
}

.yixue5-search-main {
    min-width: 0;
}

.yixue5-search-sidebar {
    align-self: flex-start;
}

/* 搜索表单区 */
.search-form-section {
    background: #FFFFFF;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
    margin-bottom: 24px;
}

.search-form-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.search-form-header i {
    font-size: 20px;
    color: var(--secondary);
}

.search-form-header h2 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text);
}

.search-form {
    display: flex;
    gap: 12px;
}

.search-form input[type="text"] {
    flex: 1;
    padding: 14px 20px;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 15px;
    transition: all 0.3s ease;
}

.search-form input[type="text"]:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(200, 16, 46, 0.1);
}

.search-form button {
    padding: 14px 30px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.search-form button:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(200, 16, 46, 0.3);
}

/* 搜索结果头部 */
.search-results-header {
    background: #FFFFFF;
    border-radius: 12px;
    padding: 24px 30px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
    margin-bottom: 24px;
}

.search-results-header h1 {
    font-size: 22px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 12px;
}

.keyword-highlight {
    color: var(--primary);
    font-weight: 700;
    position: relative;
    padding: 0 8px;
}

.keyword-highlight::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 2px;
    height: 8px;
    background: rgba(218, 165, 32, 0.3);
    z-index: -1;
}

.result-count,
.no-result-msg {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    color: var(--text-light);
}

.result-count i {
    color: var(--success);
}

.no-result-msg i {
    color: var(--warning);
}

.result-count strong {
    color: var(--primary);
    font-weight: 700;
}

/* 搜索结果列表 */
.search-results-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.search-result-card {
    background: #FFFFFF;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
    overflow: hidden;
    display: flex;
    gap: 20px;
    padding: 20px;
    transition: all 0.3s ease;
}

.search-result-card:hover {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
}

.search-result-card .result-thumb {
    position: relative;
    width: 180px;
    height: 140px;
    border-radius: 8px;
    overflow: hidden;
    flex-shrink: 0;
    background: var(--background-light);
}

.search-result-card .result-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.search-result-card:hover .result-thumb img {
    transform: scale(1.1);
}

.search-result-card .thumb-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.search-result-card:hover .thumb-overlay {
    opacity: 1;
}

.search-result-card .thumb-overlay i {
    font-size: 28px;
    color: #fff;
}

.result-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.result-title {
    font-size: 18px;
    font-weight: 600;
    line-height: 1.5;
}

.result-title a {
    color: var(--text);
    transition: color 0.3s ease;
}

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

/* 关键词高亮样式 */
.result-title strong,
.result-description strong {
    color: var(--primary);
    font-weight: 700;
    background-color: rgba(218, 165, 32, 0.2);
    padding: 2px 4px;
    border-radius: 3px;
}

.result-description {
    font-size: 14px;
    line-height: 1.6;
    color: #666666;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.result-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 13px;
    color: var(--text-light);
    margin-top: auto;
}

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

.result-meta i {
    font-size: 12px;
}

/* 无结果处理区 */
.no-results-section {
    background: #FFFFFF;
    border-radius: 12px;
    padding: 60px 30px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
    text-align: center;
}

.no-results-icon {
    font-size: 80px;
    color: var(--border);
    margin-bottom: 20px;
}

.no-results-section h2 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 12px;
}

.no-results-tip {
    font-size: 15px;
    color: var(--text-light);
    margin-bottom: 30px;
}

.search-suggestions {
    background: var(--background-light);
    border-left: 4px solid var(--secondary);
    border-radius: 8px;
    padding: 20px 30px;
    margin: 0 auto 40px;
    max-width: 600px;
    text-align: left;
}

.search-suggestions h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.search-suggestions h3 i {
    color: var(--secondary);
}

.search-suggestions ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.search-suggestions li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-light);
}

.search-suggestions li i {
    font-size: 6px;
    color: var(--primary);
}

/* 热门文章推荐区 */
.hot-articles-section {
    margin-top: 40px;
}

.hot-articles-section h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.hot-articles-section h3 i {
    color: var(--warning);
}

.hot-articles-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.hot-article-card {
    background: var(--background-light);
    border-radius: 8px;
    padding: 20px;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.hot-article-card:hover {
    background: #FFFFFF;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transform: translateY(-4px);
}

.hot-article-card h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.hot-article-card:hover h4 {
    color: var(--primary);
}

.hot-article-card p {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.hot-article-card .hot-date {
    font-size: 12px;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 4px;
    margin-top: auto;
}

/* 搜索页分页样式覆盖 */
.yixue5-search-main .pagination {
    margin: 30px 0;
    display: flex;
    gap: 8px;
    justify-content: center;
}

.yixue5-search-main .pagination a,
.yixue5-search-main .pagination span {
    background: var(--primary) !important;
    color: #fff !important;
    padding: 8px 16px;
    border-radius: 6px;
    border: none !important;
    transition: all 0.3s ease;
}

.yixue5-search-main .pagination a:hover {
    background: var(--primary-dark) !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(200, 16, 46, 0.3);
}

.yixue5-search-main .pagination .current {
    background: var(--secondary) !important;
    color: var(--text) !important;
    font-weight: 600;
}

/* 响应式：平板 */
@media (max-width: 1024px) {
    .yixue5-search-layout {
        grid-template-columns: 1fr;
    }

    .yixue5-search-sidebar {
        width: 100%;
        margin-top: 24px;
    }

    .hot-articles-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

/* 响应式：移动端 */
@media (max-width: 768px) {
    .search-form {
        flex-wrap: nowrap;
    }

    .search-form input[type="text"] {
        min-width: 0;
        flex: 1;
        padding: 12px 16px;
        font-size: 14px;
    }

    .search-form button {
        padding: 12px 20px;
        font-size: 14px;
        justify-content: center;
        flex-shrink: 0;
    }

    .search-result-card {
        flex-direction: column;
    }

    .search-result-card .result-thumb {
        width: 100%;
        height: 200px;
    }

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

@media (max-width: 430px) {
    .search-form-section {
        padding: 20px;
    }

    .search-results-header {
        padding: 16px 20px;
    }

    .search-results-header h1 {
        font-size: 18px;
    }

    .search-form {
        gap: 8px;
    }

    .search-form input[type="text"] {
        padding: 10px 12px;
        font-size: 14px;
    }

    .search-form button {
        padding: 10px 16px;
        font-size: 14px;
    }

    .no-results-section {
        padding: 40px 20px;
    }

    .search-suggestions {
        padding: 16px 20px;
    }
}

/* ====================== 404 Error Page 404页面 ====================== */
/* 404页面布局 */
.yixue5-404-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 24px;
    margin-top: 32px;
}

.yixue5-404-main {
    min-width: 0;
}

.yixue5-404-sidebar {
    align-self: flex-start;
}

/* 错误提示区 */
.error-404-section {
    background: #FFFFFF;
    border-radius: 12px;
    padding: 60px 40px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
    text-align: center;
    margin-bottom: 24px;
}

.error-icon-wrapper {
    position: relative;
    display: inline-block;
    margin-bottom: 30px;
}

.error-icon {
    font-size: 60px;
    color: var(--warning);
    animation: errorIconPulse 2s ease-in-out infinite;
}

@keyframes errorIconPulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.1);
    }
}

.error-decorative-lines {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 200px;
    height: 2px;
    pointer-events: none;
}

.error-decorative-lines .line {
    position: absolute;
    top: 0;
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--secondary), transparent);
}

.error-decorative-lines .line-left {
    left: -80px;
}

.error-decorative-lines .line-right {
    right: -80px;
}

.error-404-title {
    font-size: 100px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 16px;
    font-family: 'Georgia', 'KaiTi', serif;
    letter-spacing: 4px;
    text-shadow: 3px 3px 0 rgba(218, 165, 32, 0.3);
}

.error-subtitle {
    font-size: 24px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 12px;
}

.error-message {
    font-size: 15px;
    color: var(--text-light);
    margin-bottom: 30px;
}

.error-reasons {
    background: var(--background-light);
    border-left: 4px solid var(--primary);
    border-radius: 8px;
    padding: 20px 30px;
    margin: 0 auto;
    max-width: 500px;
    text-align: left;
}

.error-reasons h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.error-reasons h3 i {
    color: var(--primary);
}

.error-reasons ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.error-reasons li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-light);
}

.error-reasons li i {
    font-size: 6px;
    color: var(--secondary);
}

/* 快捷操作按钮 */
.error-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 30px;
}

.error-actions .btn-primary,
.error-actions .btn-secondary {
    padding: 14px 32px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.error-actions .btn-primary {
    background: var(--primary);
    color: #fff;
    border: 2px solid var(--primary);
}

.error-actions .btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(200, 16, 46, 0.3);
}

.error-actions .btn-secondary {
    background: #FFFFFF;
    color: var(--text);
    border: 2px solid var(--border);
}

.error-actions .btn-secondary:hover {
    background: var(--background-light);
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
}

/* 错误页搜索区 */
.error-search-section {
    background: #FFFFFF;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
    margin-bottom: 30px;
}

.error-search-section h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.error-search-section h3 i {
    color: var(--secondary);
}

/* 404热门文章推荐 */
.error-hot-section {
    background: #FFFFFF;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
}

.error-hot-section h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.error-hot-section h3 i {
    color: var(--warning);
}

.error-hot-section .hot-articles-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.error-hot-section .hot-article-card {
    background: var(--background-light);
    border-radius: 8px;
    padding: 20px;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.error-hot-section .hot-article-card:hover {
    background: #FFFFFF;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transform: translateY(-4px);
}

.hot-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.hot-card-header i {
    color: var(--warning);
    font-size: 16px;
}

.hot-badge {
    font-size: 12px;
    padding: 3px 8px;
    background: rgba(243, 156, 18, 0.1);
    color: var(--warning);
    border-radius: 4px;
    font-weight: 600;
}

.error-hot-section .hot-article-card h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.error-hot-section .hot-article-card:hover h4 {
    color: var(--primary);
}

.error-hot-section .hot-date {
    font-size: 12px;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 4px;
    margin-top: auto;
}

/* 响应式：平板 */
@media (max-width: 1024px) {
    .yixue5-404-layout {
        grid-template-columns: 1fr;
    }

    .yixue5-404-sidebar {
        width: 100%;
        margin-top: 24px;
    }

    .error-hot-section .hot-articles-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

/* 响应式：移动端 */
@media (max-width: 768px) {
    .error-404-section {
        padding: 40px 24px;
    }

    .error-404-title {
        font-size: 80px;
    }

    .error-subtitle {
        font-size: 20px;
    }

    .error-actions {
        flex-direction: column;
    }

    .error-actions .btn-primary,
    .error-actions .btn-secondary {
        justify-content: center;
    }

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

@media (max-width: 430px) {
    .error-404-section {
        padding: 30px 16px;
    }

    .error-404-title {
        font-size: 60px;
    }

    .error-subtitle {
        font-size: 18px;
    }

    .error-icon {
        font-size: 48px;
    }

    .error-decorative-lines {
        display: none;
    }

    .error-search-section {
        padding: 20px;
    }

    .error-hot-section {
        padding: 20px;
    }

    .error-reasons {
        padding: 16px 20px;
    }

    .search-form input[type="text"] {
        font-size: 16px;
    }
}