/**
 * MuFeng Theme Custom Styles
 * 自定义样式文件
 *
 * @package MuFeng
 * @version 1.0.0
 */

/* ===================================
   CSS变量定义 - 主题色彩系统
   =================================== */
:root {
    /* 主色调 */
    --primary-color: #5c6bc0;
    --primary-light: #8e99f3;
    --primary-dark: #26418f;

    /* 辅助色 */
    --accent-color: #ff7043;
    --success-color: #66bb6a;
    --warning-color: #ffca28;
    --error-color: #ef5350;

    /* 浅色模式 */
    --bg-color: #f5f7fa;
    --bg-card: #ffffff;
    --bg-secondary: #eef2f7;
    --text-primary: #2c3e50;
    --text-secondary: #7f8c8d;
    --text-muted: #95a5a6;
    --border-color: #e8eef3;
    --shadow-color: rgba(0, 0, 0, 0.08);

    /* 间距 */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* 圆角 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* 字体 */
    --font-family: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* 过渡 */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* 容器宽度 */
    --container-width: 1200px;
    --sidebar-width: 300px;
}

/* 暗黑模式变量 */
[data-theme="dark"] {
    --bg-color: #1a1d23;
    --bg-card: #252932;
    --bg-secondary: #2a2f3a;
    --text-primary: #e4e7ed;
    --text-secondary: #a3a9b5;
    --text-muted: #6c7486;
    --border-color: #363c4a;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --primary-color: #7c8ae4;
}

/* ===================================
   基础重置与全局样式
   =================================== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.7;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

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

ul,
ol {
    list-style: none;
}

/* ===================================
   布局容器
   =================================== */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.site-wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.content-wrapper {
    display: flex;
    gap: var(--spacing-xl);
    padding: var(--spacing-xl) 0;
}

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

.sidebar {
    width: var(--sidebar-width);
    flex-shrink: 0;
}

/* ===================================
   导航栏样式
   =================================== */
.site-header {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(20px);
    transition: all var(--transition-normal);
}

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

.site-branding {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.site-logo {
    height: 36px;
    width: auto;
}

.site-title {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.main-navigation {
    display: flex;
    align-items: center;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-xs);
}

.nav-menu li {
    position: relative;
}

.nav-menu a {
    display: flex;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-primary);
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.nav-menu a:hover,
.nav-menu a.active {
    background: var(--bg-secondary);
    color: var(--primary-color);
}

/* 下拉菜单 */
.nav-menu .sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 180px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 40px var(--shadow-color);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-normal);
    padding: var(--spacing-sm);
}

.nav-menu li:hover>.sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.sub-menu a {
    padding: var(--spacing-sm) var(--spacing-md);
}

/* 移动端菜单按钮 */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    padding: var(--spacing-sm);
    cursor: pointer;
    color: var(--text-primary);
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: currentColor;
    margin: 5px 0;
    transition: all var(--transition-fast);
}

/* ===================================
   头部工具栏
   =================================== */
.header-tools {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.search-toggle,
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: none;
    background: var(--bg-secondary);
    border-radius: var(--radius-full);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.search-toggle:hover,
.theme-toggle:hover {
    background: var(--primary-color);
    color: #fff;
    transform: scale(1.05);
}

/* ===================================
   文章卡片样式
   =================================== */
.post-card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 20px var(--shadow-color);
}

.post-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px var(--shadow-color);
}

.post-thumbnail {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

.post-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.post-category {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--primary-color);
    color: #fff;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.post-content {
    padding: var(--spacing-lg);
}

.post-title {
    font-size: 1.25rem;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: var(--spacing-sm);
}

.post-title a {
    color: var(--text-primary);
}

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

.post-excerpt {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.post-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    color: var(--text-muted);
    font-size: 0.85rem;
}

.post-meta-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.post-meta-item i {
    font-size: 0.9rem;
}

/* 文章列表网格布局 */
.posts-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
}

/* 特色文章（大图） */
.post-card.featured {
    grid-column: span 2;
}

.post-card.featured .post-thumbnail {
    aspect-ratio: 21 / 9;
}

/* ===================================
   侧边栏样式
   =================================== */
.widget {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: 0 4px 20px var(--shadow-color);
}

.widget-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--primary-color);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.widget-title::before {
    content: '';
    width: 4px;
    height: 18px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

/* 作者信息小工具 */
.widget-author,
.widget-author-card {
    text-align: center;
}

.author-avatar {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-full);
    margin: 0 auto var(--spacing-md);
    border: 3px solid var(--primary-color);
    padding: 3px;
    overflow: hidden;
}

.author-avatar img {
    width: 100%;
    height: 100%;
    border-radius: var(--radius-full);
    object-fit: cover;
}

.author-name {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.author-bio {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

.author-social {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.author-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--bg-secondary);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.author-social a:hover {
    background: var(--primary-color);
    color: #fff;
    transform: translateY(-2px);
}

/* 热门文章小工具 */
.popular-posts-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.popular-post-item {
    display: flex;
    gap: var(--spacing-md);
}

.popular-post-thumb {
    width: 70px;
    height: 70px;
    border-radius: var(--radius-md);
    overflow: hidden;
    flex-shrink: 0;
}

.popular-post-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.popular-post-item:hover .popular-post-thumb img {
    transform: scale(1.1);
}

.popular-post-info {
    flex: 1;
    min-width: 0;
}

.popular-post-title {
    font-size: 0.9rem;
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: var(--spacing-xs);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.popular-post-title a {
    color: var(--text-primary);
}

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

.popular-post-date {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* 标签云 */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.tag-cloud a {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    transition: all var(--transition-fast);
}

.tag-cloud a:hover {
    background: var(--primary-color);
    color: #fff;
}

/* ===================================
   文章详情页样式
   =================================== */
.single-post,
.single-page {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: 0 4px 20px var(--shadow-color);
}

.single-post-header,
.page-header {
    padding: var(--spacing-2xl);
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.single-post-title,
.page-title {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
}

.single-post-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.single-post-meta .post-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.single-post-meta .post-author img {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
}

.single-post-featured-image,
.page-featured-image {
    aspect-ratio: 21 / 9;
    overflow: hidden;
}

.single-post-featured-image img,
.page-featured-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.single-post-content,
.page-content {
    padding: var(--spacing-2xl);
    font-size: 1rem;
    line-height: 1.9;
}

.single-post-content h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: var(--spacing-2xl) 0 var(--spacing-md);
    padding-left: var(--spacing-md);
    border-left: 4px solid var(--primary-color);
}

.single-post-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin: var(--spacing-xl) 0 var(--spacing-md);
}

.single-post-content p {
    margin-bottom: var(--spacing-lg);
}

.single-post-content blockquote {
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-left: 4px solid var(--primary-color);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-style: italic;
    color: var(--text-secondary);
}

.single-post-content pre {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-lg);
    background: #282c34;
    border-radius: var(--radius-lg);
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.6;
    color: #abb2bf;
}

.single-post-content code {
    font-family: var(--font-mono);
    background: var(--bg-secondary);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-size: 0.9em;
}

.single-post-content pre code {
    background: none;
    padding: 0;
}

.single-post-content ul,
.single-post-content ol {
    margin: var(--spacing-lg) 0;
    padding-left: var(--spacing-xl);
}

.single-post-content li {
    margin-bottom: var(--spacing-sm);
}

.single-post-content ul li {
    list-style: disc;
}

.single-post-content ol li {
    list-style: decimal;
}

.single-post-content img {
    border-radius: var(--radius-lg);
    margin: var(--spacing-lg) auto;
}

/* 文章分类 */
.post-categories {
    margin-bottom: var(--spacing-md);
}

.post-categories .post-category {
    position: static;
    display: inline-block;
    margin-right: var(--spacing-sm);
}

/* 文章标签 */
.post-tags {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xl) var(--spacing-2xl);
    border-top: 1px solid var(--border-color);
}

.post-tags .tags-label {
    color: var(--text-muted);
}

.post-tags a {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    transition: all var(--transition-fast);
}

.post-tags a:hover {
    background: var(--primary-color);
    color: #fff;
}

/* 文章操作栏 */
.post-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg) var(--spacing-2xl);
    border-top: 1px solid var(--border-color);
}

.like-button {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--bg-secondary);
    border: none;
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.like-button:hover,
.like-button.liked {
    background: #ff6b6b;
    color: #fff;
}

.post-share {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.share-label {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.post-share a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--bg-secondary);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.post-share a:hover {
    transform: translateY(-2px);
}

.share-weibo:hover {
    background: #e6162d;
    color: #fff;
}

.share-wechat:hover {
    background: #07c160;
    color: #fff;
}

.share-qq:hover {
    background: #12b7f5;
    color: #fff;
}

.share-link:hover {
    background: var(--primary-color);
    color: #fff;
}

/* 作者信息卡片 */
.author-box {
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl) var(--spacing-2xl);
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.author-box .author-avatar {
    margin: 0;
}

.author-box .author-info {
    flex: 1;
}

/* 文章导航 */
.post-navigation {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl) var(--spacing-2xl);
    border-top: 1px solid var(--border-color);
}

.post-nav-item {
    display: block;
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.post-nav-item:hover {
    background: var(--primary-color);
}

.post-nav-item:hover .post-nav-label,
.post-nav-item:hover .post-nav-title {
    color: #fff;
}

.post-nav-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-xs);
    transition: color var(--transition-fast);
}

.post-nav-title {
    font-weight: 600;
    color: var(--text-primary);
    transition: color var(--transition-fast);
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.post-nav-item.next {
    text-align: right;
}

.post-nav-item.next .post-nav-label {
    justify-content: flex-end;
}

.post-nav-item.empty {
    visibility: hidden;
}

/* 相关文章 */
.related-posts {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-top: var(--spacing-xl);
    box-shadow: 0 4px 20px var(--shadow-color);
}

.related-posts-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.related-posts-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.related-post-item {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform var(--transition-fast);
}

.related-post-item:hover {
    transform: translateY(-4px);
}

.related-post-thumb {
    aspect-ratio: 16 / 10;
    overflow: hidden;
}

.related-post-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.related-post-item:hover .related-post-thumb img {
    transform: scale(1.1);
}

.related-post-info {
    padding: var(--spacing-md);
}

.related-post-title {
    font-size: 0.9rem;
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: var(--spacing-xs);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-post-title a {
    color: var(--text-primary);
}

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

.related-post-date {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ===================================
   评论区样式
   =================================== */
.comments-area {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    margin-top: var(--spacing-xl);
    box-shadow: 0 4px 20px var(--shadow-color);
}

.comments-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.comment-list {
    margin-bottom: var(--spacing-2xl);
}

.comment {
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
}

.comment .children {
    margin-top: var(--spacing-md);
    margin-left: var(--spacing-xl);
}

.comment-body {
    position: relative;
}

.comment-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.comment-author-avatar {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    overflow: hidden;
}

.comment-author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.comment-author-name {
    font-weight: 600;
    color: var(--text-primary);
}

.comment-author-name a {
    color: var(--text-primary);
}

.comment-date {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.comment-content {
    color: var(--text-secondary);
    line-height: 1.7;
}

.comment-content p {
    margin-bottom: var(--spacing-sm);
}

.comment-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-sm);
}

.comment-reply-link,
.edit-link a {
    font-size: 0.85rem;
    color: var(--primary-color);
}

.comment-awaiting-moderation {
    padding: var(--spacing-sm);
    background: var(--warning-color);
    color: #333;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    margin-bottom: var(--spacing-sm);
}

/* 评论表单 */
.comment-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.comment-form label {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.comment-form .required {
    color: var(--error-color);
}

.comment-form input[type="text"],
.comment-form input[type="email"],
.comment-form input[type="url"],
.comment-form textarea {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

.comment-form input:focus,
.comment-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.comment-form textarea {
    min-height: 150px;
    resize: vertical;
}

.comment-notes {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.form-submit .submit,
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: #fff;
    border: none;
    border-radius: var(--radius-full);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.form-submit .submit:hover,
.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(92, 107, 192, 0.3);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: var(--text-muted);
    color: #fff;
}

/* ===================================
   归档页头部
   =================================== */
.archive-header {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    margin-bottom: var(--spacing-xl);
    text-align: center;
    box-shadow: 0 4px 20px var(--shadow-color);
}

.archive-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #fff;
}

.archive-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.archive-description {
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto var(--spacing-sm);
}

.archive-count {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* 作者归档页 */
.author-archive-header {
    padding: var(--spacing-xl);
}

.author-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    text-align: left;
}

.author-avatar-large {
    width: 120px;
    height: 120px;
    border-radius: var(--radius-full);
    overflow: hidden;
    border: 4px solid var(--primary-color);
    flex-shrink: 0;
}

.author-avatar-large img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.author-details {
    flex: 1;
}

.author-stats {
    display: flex;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-sm);
    color: var(--text-muted);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

/* ===================================
   404页面
   =================================== */
.error-404-wrapper {
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
}

.error-404-content {
    text-align: center;
    max-width: 500px;
}

.error-code {
    font-size: 8rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: var(--spacing-md);
}

.error-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.error-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
}

.error-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-xl);
}

.error-search {
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
}

.error-search p {
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
}

/* ===================================
   无内容提示
   =================================== */
.no-posts {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    text-align: center;
    box-shadow: 0 4px 20px var(--shadow-color);
}

.no-posts-icon {
    font-size: 3rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
}

.no-posts h2 {
    margin-bottom: var(--spacing-sm);
}

.no-posts p {
    color: var(--text-secondary);
}

/* ===================================
   页脚样式
   =================================== */
.site-footer {
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
    margin-top: auto;
}

.footer-widgets {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
    padding: var(--spacing-2xl) 0;
}

.footer-widget-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--border-color);
}

.footer-bottom-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

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

/* ===================================
   分页样式
   =================================== */
.pagination,
.nav-links {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-2xl);
}

.pagination .page-numbers,
.nav-links .page-numbers {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 var(--spacing-sm);
    background: var(--bg-card);
    color: var(--text-primary);
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: all var(--transition-fast);
    box-shadow: 0 2px 8px var(--shadow-color);
}

.pagination .page-numbers:hover,
.pagination .page-numbers.current,
.nav-links .page-numbers:hover,
.nav-links .page-numbers.current {
    background: var(--primary-color);
    color: #fff;
}

/* ===================================
   搜索模态框
   =================================== */
.search-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: 9999;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: var(--spacing-2xl);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.search-modal.active {
    opacity: 1;
    visibility: visible;
}

.search-modal-inner {
    width: 100%;
    max-width: 600px;
    margin-top: 100px;
    transform: translateY(-20px);
    transition: transform var(--transition-normal);
}

.search-modal.active .search-modal-inner {
    transform: translateY(0);
}

.search-form,
.search-form-inline {
    display: flex;
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.search-form input,
.search-form-inline input {
    flex: 1;
    padding: var(--spacing-lg);
    border: none;
    background: transparent;
    color: var(--text-primary);
    font-size: 1.1rem;
    font-family: inherit;
}

.search-form input:focus,
.search-form-inline input:focus {
    outline: none;
}

.search-form button,
.search-form-inline button {
    padding: var(--spacing-lg) var(--spacing-xl);
    background: var(--primary-color);
    color: #fff;
    border: none;
    cursor: pointer;
    transition: background var(--transition-fast);
}

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

/* ===================================
   回到顶部按钮
   =================================== */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 48px;
    height: 48px;
    background: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-normal);
    box-shadow: 0 4px 20px rgba(92, 107, 192, 0.3);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-4px);
}

/* ===================================
   公告栏
   =================================== */
.notice-bar {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: #fff;
    padding: var(--spacing-sm) 0;
}

.notice-bar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.notice-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.notice-text {
    font-size: 0.9rem;
}

.notice-close {
    background: none;
    border: none;
    color: #fff;
    cursor: pointer;
    padding: var(--spacing-xs);
    opacity: 0.7;
    transition: opacity var(--transition-fast);
}

.notice-close:hover {
    opacity: 1;
}

/* ===================================
   面包屑导航
   =================================== */
.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) 0;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.breadcrumb a {
    color: var(--text-secondary);
}

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

.breadcrumb .current {
    color: var(--text-primary);
}

.breadcrumb i {
    font-size: 0.7rem;
}

/* ===================================
   短代码样式
   =================================== */
/* 提示框 */
.alert {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin: var(--spacing-lg) 0;
}

.alert i {
    font-size: 1.2rem;
    margin-top: 2px;
}

.alert-info {
    background: rgba(92, 107, 192, 0.1);
    border-left: 4px solid var(--primary-color);
    color: var(--primary-color);
}

.alert-success {
    background: rgba(102, 187, 106, 0.1);
    border-left: 4px solid var(--success-color);
    color: var(--success-color);
}

.alert-warning {
    background: rgba(255, 202, 40, 0.1);
    border-left: 4px solid var(--warning-color);
    color: #856404;
}

.alert-danger {
    background: rgba(239, 83, 80, 0.1);
    border-left: 4px solid var(--error-color);
    color: var(--error-color);
}

/* 下载框 */
.download-box {
    margin: var(--spacing-lg) 0;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    background: linear-gradient(135deg, var(--success-color), #4caf50);
    color: #fff;
    border-radius: var(--radius-lg);
    font-weight: 600;
    transition: all var(--transition-fast);
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 187, 106, 0.3);
    color: #fff;
}

.download-size {
    font-size: 0.85rem;
    opacity: 0.8;
}

/* 折叠框 */
.collapse-box {
    margin: var(--spacing-lg) 0;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.collapse-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-secondary);
    cursor: pointer;
    font-weight: 600;
}

.collapse-header i {
    transition: transform var(--transition-fast);
}

.collapse-box.open .collapse-header i {
    transform: rotate(180deg);
}

.collapse-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

.collapse-box.open .collapse-content {
    max-height: 1000px;
    padding: var(--spacing-lg);
}

/* 高亮 */
.highlight {
    padding: 2px 6px;
    border-radius: var(--radius-sm);
}

.highlight-yellow {
    background: rgba(255, 202, 40, 0.4);
}

.highlight-green {
    background: rgba(102, 187, 106, 0.3);
}

.highlight-blue {
    background: rgba(92, 107, 192, 0.3);
}

.highlight-red {
    background: rgba(239, 83, 80, 0.3);
}

/* 进度条 */
.progress-bar {
    height: 24px;
    background: var(--bg-secondary);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin: var(--spacing-md) 0;
}

.progress-fill {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
}

.progress-primary .progress-fill {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
}

.progress-success .progress-fill {
    background: linear-gradient(135deg, var(--success-color), #81c784);
}

.progress-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: #fff;
}

/* 隐藏内容 */
.reply-hidden,
.login-hidden {
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    text-align: center;
    color: var(--text-muted);
}

.reply-hidden i,
.login-hidden i {
    margin-right: var(--spacing-sm);
}

/* ===================================
   加载动画
   =================================== */
.loading-skeleton {
    background: linear-gradient(90deg, var(--bg-secondary) 25%, var(--bg-card) 50%, var(--bg-secondary) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--radius-md);
}

@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }

    100% {
        background-position: -200% 0;
    }
}

/* ===================================
   响应式设计
   =================================== */
@media (max-width: 1024px) {
    .content-wrapper {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
    }

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

    .post-card.featured {
        grid-column: span 1;
    }

    .footer-widgets {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .author-card {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-lg: 1rem;
        --spacing-xl: 1.5rem;
        --spacing-2xl: 2rem;
    }

    .header-inner {
        height: 56px;
    }

    .main-navigation {
        position: fixed;
        top: 56px;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--bg-card);
        padding: var(--spacing-md);
        transform: translateX(-100%);
        transition: all var(--transition-normal);
        overflow-y: auto;
    }

    .main-navigation.active {
        transform: translateX(0);
    }

    .nav-menu {
        flex-direction: column;
    }

    .nav-menu .sub-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        padding-left: var(--spacing-lg);
    }

    .menu-toggle {
        display: block;
    }

    .single-post-title,
    .page-title {
        font-size: 1.5rem;
    }

    .single-post-header,
    .single-post-content,
    .page-header,
    .page-content {
        padding: var(--spacing-lg);
    }

    .post-navigation {
        grid-template-columns: 1fr;
    }

    .footer-widgets {
        grid-template-columns: 1fr;
    }

    .related-posts-grid {
        grid-template-columns: 1fr;
    }

    .error-code {
        font-size: 5rem;
    }

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

    .author-box {
        flex-direction: column;
        text-align: center;
    }

    .post-actions {
        flex-direction: column;
        gap: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .header-tools {
        gap: var(--spacing-xs);
    }

    .search-toggle,
    .theme-toggle {
        width: 36px;
        height: 36px;
    }

    .post-content {
        padding: var(--spacing-md);
    }

    .widget {
        padding: var(--spacing-md);
    }

    .single-post-meta {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

/* ===================================
   动画效果
   =================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {

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

    50% {
        transform: scale(1.05);
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

.animate-pulse {
    animation: pulse 2s infinite;
}

/* Logo扫光效果 */
.site-logo-wrapper {
    position: relative;
    overflow: hidden;
}

.site-logo-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: logo-shine 3s infinite;
}

@keyframes logo-shine {
    0% {
        left: -100%;
    }

    50%,
    100% {
        left: 100%;
    }
}

/* ===================================
   滚动条样式
   =================================== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* ===================================
   选中文本样式
   =================================== */
::selection {
    background: var(--primary-color);
    color: #fff;
}

/* ===================================
   高性能图片懒加载样式
   =================================== */

/* 懒加载图片基础样式 */
img[data-src],
img.lazy {
    opacity: 0;
    transition: opacity 0.3s ease-out;
    /* 使用GPU加速 */
    will-change: opacity;
    /* 防止布局抖动 */
    min-height: 50px;
    background: var(--bg-secondary);
}

/* 加载中状态 - 骨架屏动画 */
img.loading {
    position: relative;
    background: linear-gradient(90deg,
            var(--bg-secondary) 0%,
            var(--bg-card) 50%,
            var(--bg-secondary) 100%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.2s ease-in-out infinite;
}

@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }

    100% {
        background-position: -200% 0;
    }
}

/* 加载完成状态 */
img.loaded,
img.lazyloaded {
    opacity: 1;
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(5px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 加载失败状态 */
img.error {
    opacity: 1;
    background: var(--bg-secondary);
    min-height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
}

img.error::after {
    content: '图片加载失败';
    font-size: 12px;
    color: var(--text-muted);
}

/* 图片容器占位符 - 保持宽高比防止布局抖动 */
.lazy-wrapper {
    position: relative;
    overflow: hidden;
    background: var(--bg-secondary);
}

/* 16:9 比例 */
.lazy-wrapper.ratio-16-9 {
    padding-bottom: 56.25%;
}

/* 4:3 比例 */
.lazy-wrapper.ratio-4-3 {
    padding-bottom: 75%;
}

/* 1:1 比例 */
.lazy-wrapper.ratio-1-1 {
    padding-bottom: 100%;
}

.lazy-wrapper img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 模糊占位图样式 (LQIP) */
img.lqip {
    filter: blur(10px);
    transform: scale(1.1);
}

img.lqip.loaded {
    filter: blur(0);
    transform: scale(1);
    transition: filter 0.5s ease-out, transform 0.5s ease-out;
}

/* 缩略图特定优化 */
.post-thumbnail img,
.related-post-thumb img,
.popular-post-thumb img {
    /* 使用contain-intrinsic-size提示浏览器预留空间 */
    contain-intrinsic-size: auto 200px;
    content-visibility: auto;
}

/* 首屏内容立即显示 */
.above-fold img {
    opacity: 1 !important;
}

/* 打印时显示所有图片 */
@media print {

    img[data-src],
    img.lazy {
        opacity: 1 !important;
    }
}

/* 减少动画偏好 */
@media (prefers-reduced-motion: reduce) {

    img[data-src],
    img.lazy,
    img.loading,
    img.loaded,
    img.lazyloaded {
        animation: none;
        transition: opacity 0.1s ease;
    }
}