/* Navzblog导航主题样式 - 基于MijiNav迁移 */

/* CSS变量 */
:root {
    --primary-color: #556aff;
    --text-color: #333;
    --text-color-secondary: #666;
    --text-color-light: #999;
    --bg-color: #fff;
    --bg-color-secondary: #f5f7fa;
    --border-color: #eaeaea;
    --card-shadow: 0 4px 12px rgba(0,0,0,0.05);
    --border-radius: 8px;
    --header-height: 60px;
    --button-bg: #ffffff;
    --button-color: #333333;
    --sidebar-width: 220px;
}

[data-theme="dark"] {
    --primary-color: #3855ab;
    --text-color: #CCCCCC;
    --text-color-secondary: #aaa;
    --text-color-light: #888;
    --bg-color: #15161a;
    --bg-color-secondary: #1f2026;
    --border-color: #333438;
    --card-shadow: 0 4px 12px rgba(0,0,0,0.2);
    --button-bg: #2d2d2d;
    --button-color: #ffffff;
}

/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    margin: 0;
    padding: 0;
}

html {
    background-image: url('../image/bg-main.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

html[data-theme="dark"] {
    background-image: none;
    background-color: #15161a;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    color: var(--text-color);
    background-color: transparent;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

[data-theme="dark"] body {
    background-color: #15161a;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    opacity: 0.8;
}

ul, li {
    list-style: none;
}

/* 容器布局 */
.nav-container {
    display: flex;
    min-height: 100vh;
    flex: 1;
    position: relative;
}

/* 背景图已移至.nav-sidebar */

/* 侧边栏 */
.nav-sidebar {
    display: flex;
    flex-direction: column;
    height: 100vh;
    width: var(--sidebar-width);
    background-color: rgba(255, 255, 255, 0.3);
    border-right: 2px solid rgba(255, 255, 255, 0.6);
    background-image: url('../image/bg-sidebar.png');
    background-repeat: no-repeat;
    background-size: cover;
    background-position: 50%;
    position: fixed;
    overflow-y: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
    left: 0;
    top: 0;
    z-index: 100;
    transition: left 0.3s ease;
}

[data-theme="dark"] .nav-sidebar {
    background-image: none;
    background-color: #1a1c22;
    border-color: #27282e;
}

.nav-sidebar::-webkit-scrollbar {
    display: none;
}

.nav-logo {
    padding: 20px 15px;
    position: sticky;
    top: 0;
    z-index: 10;
    text-align: center;
    display: flex;
    justify-content: center;
    align-items: center;
}

.nav-logo a {
    font-size: 16px;
    font-weight: 600;
    display: inline-block;
    color: var(--text-color);
}

.nav-logo img {
    max-width: 160px;
    max-height: 48px;
}

.nav-categories {
    flex: 1;
    overflow-y: auto;
    padding: 0 15px 40px 15px;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE/Edge */
}

.nav-categories::-webkit-scrollbar {
    display: none; /* Chrome/Safari/Opera */
}

.nav-category {
    display: flex;
    align-items: center;
    padding: 10px 15px;
    margin: 8px 0;
    border-radius: 8px;
    cursor: pointer;
    color: var(--text-color);
    transition: all 0.2s ease;
    border: 1px solid transparent;
    text-decoration: none;
}

.nav-category:hover,
.nav-category.active {
    background-color: var(--bg-color);
    border-color: var(--border-color);
    color: var(--text-color);
}

[data-theme="dark"] .nav-category:hover,
[data-theme="dark"] .nav-category.active {
    background-color: #202127;
    border-color: var(--border-color);
}

.nav-category-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.nav-category-icon svg {
    /* 不强制设置fill，让SVG保持原始样式 */
    color: var(--text-color);
}

[data-theme="dark"] .nav-category-icon svg {
    filter: brightness(4) saturate(0);
}

.nav-category span {
    font-size: 14px;
    margin-left: 10px;
}

/* 主内容区 */
.nav-main {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: margin-left 0.3s ease;
    position: relative;
}

.nav-content {
    padding: 92px 40px 20px 40px;
    max-width: 1600px;
    margin: 0 auto;
    width: 100%;
    flex: 1;
    display: flex;
    flex-direction: column;
    box-sizing: border-box;
}

/* 顶栏 */
.nav-topbar {
    position: fixed;
    top: 0;
    left: var(--sidebar-width);
    right: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 30px;
    border-bottom: 1px solid transparent;
    background: transparent;
    backdrop-filter: blur(0px);
    -webkit-backdrop-filter: blur(0px);
    transition: background-color 0.3s ease, backdrop-filter 0.3s ease, border-color 0.3s ease, left 0.3s ease;
    height: 72px;
}

.nav-topbar.scrolled {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom-color: var(--border-color);
}

[data-theme="dark"] .nav-topbar.scrolled {
    background: rgba(30, 30, 30, 0.8);
}

.sidebar-hidden .nav-topbar {
    left: 0;
}

.sidebar-visible .nav-topbar {
    left: 220px;
}

.nav-topbar-left {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.nav-topbar-center {
    flex: 1;
    max-width: 600px;
    margin: 0 40px;
    display: flex;
    justify-content: center;
}

.nav-topbar-right {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.nav-menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-color);
    padding: 8px;
    border-radius: 6px;
    transition: background-color 0.2s;
}

.nav-menu-toggle:hover {
    background-color: var(--bg-color-secondary);
}

/* 搜索框 */
.nav-search-form {
    display: flex;
    align-items: center;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    width: 100%;
    max-width: 500px;
}

.nav-search-input {
    flex: 1;
    padding: 10px 15px;
    border: none;
    background: transparent;
    color: var(--text-color);
    font-size: 14px;
    outline: none;
}

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

.nav-search-btn {
    padding: 10px 15px;
    background: none;
    border: none;
    color: var(--text-color-secondary);
    cursor: pointer;
    transition: color 0.2s;
}

.nav-search-btn:hover {
    color: var(--primary-color);
}

/* 页面导航 */
.nav-pages-menu {
    display: flex;
    gap: 20px;
    align-items: center;
}

.nav-page-link {
    color: var(--text-color-secondary);
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s;
}

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

/* 下拉菜单 */
.nav-dropdown {
    position: relative;
}

.nav-dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    padding: 4px 0;
    min-width: 150px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    z-index: 100;
}

.nav-dropdown:hover .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
}

.nav-dropdown-item {
    display: block;
    padding: 8px 16px;
    color: var(--text-color);
    font-size: 14px;
    transition: background-color 0.2s;
}

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

/* 图片运营位 */
.image-entrance-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.image-entrance-item {
    position: relative;
    width: 100%;
    padding-bottom: 40%;
    overflow: hidden;
    border-radius: 8px;
}

.image-entrance-item img {
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.image-entrance-item:hover img {
    transform: scale(1.05);
}

/* 分类区块 */
.nav-section {
    margin-bottom: 30px;
}


.nav-category-title {
    font-size: 18px;
    font-weight: 600;
    padding: 16px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.nav-category-title .more-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 14px;
    font-weight: normal;
    color: #999;
    cursor: pointer;
    transition: all 0.2s ease;
}

.nav-category-title .more-btn svg {
    transition: transform 0.2s ease;
}

.nav-category-title .more-btn:hover {
    color: #666;
}

.nav-category-title .more-btn:hover svg {
    transform: translateX(2px);
}

[data-theme="dark"] .nav-category-title .more-btn {
    color: #888;
}

[data-theme="dark"] .nav-category-title .more-btn:hover {
    color: #aaa;
}

/* 网址卡片 */
.nav-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.nav-card {
    position: relative;
    display: flex;
    align-items: center;
    padding: 24px;
    background-color: rgba(255,255,255,0.8);
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(60,114,139,0.03);
    border: 1px solid rgba(255,255,255,0.8);
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.nav-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0,0,0,0.06);
}

[data-theme="dark"] .nav-card {
    background-color: #1f2026;
    border-color: #333438;
}

[data-theme="dark"] .nav-card:hover {
    box-shadow: 0 4px 16px rgba(0,0,0,0.25);
}

.nav-card-logo {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    overflow: hidden;
    margin-right: 12px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-card-logo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.nav-card-logo-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    background-color: var(--primary-color);
    color: white;
    font-size: 20px;
    font-weight: 500;
    text-transform: uppercase;
    border-radius: 50%;
}

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

.nav-card-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-color);
    margin-bottom: 6px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.nav-card-desc {
    font-size: 12px;
    color: var(--text-color-light);
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    line-height: 1.4;
}

.nav-card-jump {
    position: absolute;
    right: 12px;
    top: 12px;
    width: 28px;
    height: 28px;
    display: none;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    opacity: 0;
    background-color: transparent;
    z-index: 2;
    color: var(--text-color-light);
}

[data-card-behavior="hover"] .nav-card:hover .nav-card-jump {
    display: flex;
    opacity: 1;
}

.nav-card-jump:hover {
    background-color: rgba(89,111,248,0.08);
}

/* 文章卡片 */
.nav-articles {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.nav-article-card {
    display: flex;
    flex-direction: column;
    background-color: rgba(255,255,255,0.8);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    overflow: hidden;
}

.nav-article-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}

[data-theme="dark"] .nav-article-card {
    background-color: #1f2026;
    border-color: #333438;
}

/* 文章封面 */
.nav-article-cover {
    display: block;
    width: 100%;
    aspect-ratio: 16/9;
    overflow: hidden;
    position: relative;
    padding: 20px 20px 0;
}

.nav-article-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 8px;
}

.nav-article-cover-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    opacity: 0.1;
    border-radius: 8px;
}

[data-theme="dark"] .nav-article-cover-placeholder {
    opacity: 0.2;
}

/* 图片加载失败样式 */
.nav-article-cover.error {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f8f9fa;
    min-height: 100px;
}

[data-theme="dark"] .nav-article-cover.error {
    background-color: #2a2b30;
}

.nav-article-cover.error::after {
    content: '图片加载失败';
    font-size: 13px;
    color: #999;
}

[data-theme="dark"] .nav-article-cover.error::after {
    color: #666;
}

/* 文章内容区 */
.nav-article-content {
    padding: 16px;
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 98px; /* 确保统一高度 */
}

/* 文章标签 */
.nav-article-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.nav-article-tag {
    display: inline-block;
    padding: 4px 10px;
    background-color: rgba(102, 126, 234, 0.1);
    color: #667eea;
    font-size: 12px;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.nav-article-tag:hover {
    background-color: rgba(102, 126, 234, 0.2);
    transform: translateY(-1px);
}

[data-theme="dark"] .nav-article-tag {
    background-color: rgba(102, 126, 234, 0.15);
    color: #8b9dff;
}

[data-theme="dark"] .nav-article-tag:hover {
    background-color: rgba(102, 126, 234, 0.25);
}

/* 文章标题 */
.nav-article-title {
    display: block;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-color);
    margin: 10px 0 10px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    line-height: 1.5;
}

.nav-article-title:hover {
    color: var(--primary-color);
}

/* 文章元信息 */
.nav-article-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    color: var(--text-color-light);
    margin-top: auto;
}

.nav-article-date {
    display: flex;
    align-items: center;
}

.nav-article-category {
    display: flex;
    align-items: center;
    color: var(--text-color-light);
    transition: color 0.2s ease;
}

.nav-article-category:hover {
    color: var(--primary-color);
}

.nav-article-intro {
    font-size: 14px;
    color: var(--text-color-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    line-height: 1.6;
}

/* 文章列表 */
.nav-article-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* 详情页样式 */
.nav-detail-header {
    margin-bottom: 20px;
}

.nav-detail-back {
    display: inline-flex;
    align-items: center;
    color: var(--text-color-secondary);
    font-size: 14px;
    transition: color 0.2s;
}

.nav-detail-back:hover {
    color: var(--primary-color);
}

.nav-detail-back svg {
    margin-right: 8px;
}

.nav-detail-site {
    display: flex;
    align-items: flex-start;
    background-color: rgba(255,255,255,0.8);
    padding: 30px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    margin-bottom: 20px;
}

[data-theme="dark"] .nav-detail-site {
    background-color: #1f2026;
    border-color: #333438;
}

.nav-detail-site-logo {
    width: 80px;
    height: 80px;
    border-radius: 12px;
    overflow: hidden;
    margin-right: 24px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-detail-site-logo .nav-card-logo-placeholder {
    width: 100%;
    height: 100%;
    font-size: 32px;
    border-radius: 12px;
}

.nav-detail-site-logo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 12px;
}

.nav-detail-site-content {
    flex: 1;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 20px;
}

.nav-detail-site-info {
    flex: 1;
}

.nav-detail-site-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 12px;
}

.nav-detail-site-desc {
    font-size: 14px;
    color: var(--text-color-secondary);
    line-height: 1.8;
    margin-bottom: 12px;
}

.nav-detail-site-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.nav-detail-site-tags a {
    font-size: 12px;
    color: var(--text-color-secondary);
    background-color: var(--bg-color-secondary);
    padding: 4px 12px;
    border-radius: 12px;
    transition: all 0.2s;
}

.nav-detail-site-tags a:hover {
    color: var(--primary-color);
    background-color: rgba(85,106,255,0.1);
}

.nav-detail-site-actions {
    display: flex;
    gap: 12px;
    flex-shrink: 0;
}

.nav-detail-site-btn {
    display: inline-flex;
    align-items: center;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
}

.nav-detail-site-btn svg {
    margin-right: 8px;
}

.nav-detail-site-btn.primary {
    background-color: var(--primary-color);
    color: white;
}

.nav-detail-site-btn.primary:hover {
    opacity: 0.9;
}

.nav-detail-site-btn.copy {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-color-secondary);
}

.nav-detail-site-btn.copy:hover {
    background-color: var(--bg-color-secondary);
}

/* 详情内容 */
.nav-detail-content {
    background-color: rgba(255,255,255,0.8);
    padding: 40px 60px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    line-height: 1.8;
}

[data-theme="dark"] .nav-detail-content {
    background-color: #1f2026;
    border-color: #333438;
}

.nav-detail-content p {
    margin-bottom: 1.5em;
}

.nav-detail-content h1,
.nav-detail-content h2,
.nav-detail-content h3,
.nav-detail-content h4,
.nav-detail-content h5,
.nav-detail-content h6 {
    margin: 1.5em 0 1em;
    font-weight: 600;
    color: var(--text-color);
}

.nav-detail-content a {
    color: var(--primary-color);
}

.nav-detail-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 1em 0;
}

.nav-detail-content code {
    padding: 2px 6px;
    background-color: var(--bg-color-secondary);
    border-radius: 4px;
    font-family: monospace;
    font-size: 0.9em;
}

.nav-detail-content pre {
    padding: 16px;
    background-color: var(--bg-color-secondary);
    border-radius: 8px;
    overflow-x: auto;
    margin: 1em 0;
}

.nav-detail-content pre code {
    padding: 0;
    background: none;
}

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

.nav-detail-content li {
    margin-bottom: 0.5em;
    list-style: inherit;
}

.nav-detail-content blockquote {
    margin: 1em 0;
    padding: 1em 1.5em;
    border-left: 4px solid var(--primary-color);
    background-color: var(--bg-color-secondary);
    border-radius: 0 8px 8px 0;
}

.nav-no-content-tip {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    color: var(--text-color-light);
    font-size: 14px;
}

/* 文章详情 */
.nav-article-detail {
    background-color: rgba(255,255,255,0.6);
    border-radius: 12px;
    border: 1px solid var(--bg-color);
    overflow: hidden;
}

[data-theme="dark"] .nav-article-detail {
    background-color: #1f2026;
    border-color: #333438;
}

.nav-article-header {
    padding: 40px 60px 20px;
    border-bottom: 1px solid var(--border-color);
}

.nav-article-detail-title {
    font-size: 28px;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 16px;
    line-height: 1.4;
}

.nav-article-detail-meta {
    display: flex;
    gap: 16px;
    font-size: 14px;
    color: var(--text-color-secondary);
}

.nav-article-detail-meta a {
    color: var(--primary-color);
}

/* 文章详情页内容 */
.nav-article-detail .nav-article-content {
    padding: 20px 60px;
    line-height: 1.8;
    font-size: 16px;
}

.nav-article-detail .nav-article-content p {
    margin-bottom: 1.5em;
}

.nav-article-detail .nav-article-content h2 {
    font-size: 22px;
    margin: 2em 0 1em;
}

.nav-article-detail .nav-article-content h3 {
    font-size: 18px;
    margin: 1.5em 0 1em;
}

/* 文章详情页和网址详情页的图片样式 */
.nav-article-detail .nav-article-content img,
.nav-detail-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 1em 0;
    display: block;
}

/* 图片加载失败时隐藏破损图标 */
.nav-article-detail .nav-article-content img.img-load-error,
.nav-detail-content img.img-load-error {
    display: none;
}

/* 图片加载失败占位容器 */
.nav-article-detail .nav-article-content .img-error-placeholder,
.nav-detail-content .img-error-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    background-color: var(--bg-color-secondary);
    border-radius: 8px;
    margin: 1em 0;
    padding: 40px 20px;
    color: var(--text-color-light);
    font-size: 14px;
    border: 1px dashed var(--border-color);
}

.nav-article-detail .nav-article-content .img-error-placeholder svg,
.nav-detail-content .img-error-placeholder svg {
    width: 48px;
    height: 48px;
    margin-bottom: 12px;
    opacity: 0.4;
    color: var(--text-color-light);
}

.nav-article-detail .nav-article-content .img-error-placeholder span,
.nav-detail-content .img-error-placeholder span {
    color: var(--text-color-light);
    font-size: 14px;
}

.nav-article-footer {
    padding: 20px 60px 20px;
    border-top: 1px solid var(--border-color);
}

.nav-article-tags {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 14px;
    color: var(--text-color-secondary);
}

.nav-article-tags a {
    background-color: var(--bg-color-secondary);
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 12px;
    transition: all 0.2s;
}

.nav-article-tags a:hover {
    background-color: rgba(85,106,255,0.1);
}

/* 页面标题 */
.nav-page-title-container {
    margin-bottom: 30px;
}

.nav-page-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-color);
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

/* 分页 */
.nav-pagebar {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 30px 0;
}

.nav-pagebar a,
.nav-pagebar span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 12px;
    margin: 0 4px;
    border-radius: 8px;
    font-size: 14px;
    color: var(--text-color-secondary);
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    transition: all 0.2s;
    text-decoration: none;
}

.nav-pagebar a:hover {
    color: var(--primary-color);
    border-color: var(--primary-color);
    background-color: rgba(var(--primary-color-rgb), 0.05);
}

.nav-pagebar span.current {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* 移除可能的嵌套边框 */
.nav-pagebar > * {
    box-sizing: border-box;
}

.nav-pagebar a > *,
.nav-pagebar span > * {
    border: none;
    background: none;
}

/* 空状态 */
.nav-empty {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-color-light);
}

.nav-empty p {
    font-size: 16px;
    margin: 0;
}

/* 评论区 */
.nav-comments-section {
    margin-top: 30px;
    background-color: rgba(255,255,255,0.8);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    padding: 30px;
}

[data-theme="dark"] .nav-comments-section {
    background-color: #1f2026;
    border-color: #333438;
}

.nav-comments-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.nav-comments-list {
    margin-bottom: 30px;
}

.nav-comment {
    display: flex;
    padding: 20px 0;
    border-bottom: 1px solid var(--border-color);
}

.nav-comment:last-child {
    border-bottom: none;
}

.nav-comment-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    overflow: hidden;
    margin-right: 16px;
    flex-shrink: 0;
}

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

.nav-comment-content {
    flex: 1;
}

.nav-comment-meta {
    display: flex;
    gap: 12px;
    margin-bottom: 8px;
}

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

.nav-comment-time {
    font-size: 12px;
    color: var(--text-color-light);
}

.nav-comment-text {
    font-size: 14px;
    color: var(--text-color-secondary);
    line-height: 1.6;
}

.nav-comment-actions {
    margin-top: 8px;
}

.nav-comment-reply {
    font-size: 12px;
    color: var(--primary-color);
}

/* 评论表单 */
.nav-comment-form-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
}

.nav-comment-form-row {
    margin-bottom: 16px;
}

.nav-comment-form-row:last-child {
    margin-bottom: 0;
}

.nav-input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-size: 14px;
    transition: border-color 0.2s;
}

.nav-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.nav-textarea {
    width: 100%;
    min-height: 120px;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-size: 14px;
    resize: vertical;
    transition: border-color 0.2s;
}

.nav-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.nav-comment-form-row:first-child {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

/* 按钮 */
.nav-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
}

.nav-btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.nav-btn-primary:hover {
    opacity: 0.9;
}

/* 底部分类网格 */
.nav-footer-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
    background-color: rgba(255,255,255,0.8);
    padding: 30px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    margin-top: 40px;
}

[data-theme="dark"] .nav-footer-grid {
    background-color: #1f2026;
    border-color: #333438;
}

.nav-footer-category {
    text-align: center;
}

.nav-footer-category-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
}

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

.nav-footer-links a {
    font-size: 14px;
    color: var(--text-color-secondary);
    transition: color 0.2s;
}

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

/* 版权 */
.nav-copyright {
    margin-top: auto;
    padding: 30px 0;
    text-align: center;
    color: var(--text-color-secondary);
    font-size: 14px;
}

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

.nav-copyright a:hover {
    color: var(--text-color);
}

/* 404页面 */
.nav-404-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
}

.nav-404-content {
    text-align: center;
}

.nav-404-icon {
    color: var(--text-color-light);
    margin-bottom: 20px;
}

.nav-404-title {
    font-size: 72px;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 16px;
}

.nav-404-text {
    font-size: 16px;
    color: var(--text-color-secondary);
    margin-bottom: 30px;
}

/* 搜索无结果 */
.nav-no-results {
    text-align: center;
    padding: 60px 20px;
}

.nav-no-results p {
    font-size: 16px;
    color: var(--text-color-secondary);
    margin-bottom: 8px;
}

.nav-no-results-tip {
    font-size: 14px;
    color: var(--text-color-light);
}

/* 固定按钮 */
.nav-fixed-buttons {
    position: fixed;
    right: 20px;
    bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 1000;
}

.nav-fixed-button {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: var(--button-bg);
    color: var(--button-color);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    position: relative;
    transition: transform 0.2s;
}

.nav-fixed-button:hover {
    transform: translateY(-2px);
}

[data-theme="dark"] .nav-fixed-button {
    background-color: var(--bg-color-secondary);
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.nav-scroll-progress {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.nav-scroll-progress circle {
    fill: none;
    stroke: var(--primary-color);
    stroke-width: 2;
    stroke-linecap: round;
    transform-origin: center;
}

#backToTop {
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}

#backToTop.visible {
    opacity: 1;
    visibility: visible;
}

.theme-light {
    display: inline-block;
}

.theme-dark {
    display: none;
}

[data-theme="dark"] .theme-light {
    display: none;
}

[data-theme="dark"] .theme-dark {
    display: inline-block;
}

.light-logo {
    display: block;
}

.dark-logo {
    display: none;
}

[data-theme="dark"] .light-logo {
    display: none;
}

[data-theme="dark"] .dark-logo {
    display: block;
}

/* Toast提示 */
.nav-toast {
    position: fixed;
    top: 20px;
    right: 20px;
    background-color: var(--bg-color);
    color: var(--text-color);
    padding: 12px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    border: 1px solid var(--border-color);
    font-size: 14px;
    z-index: 10000;
    opacity: 0;
    transform: translateX(100%);
    transition: all 0.3s ease;
}

.nav-toast.show {
    opacity: 1;
    transform: translateX(0);
}

.nav-toast.success {
    background-color: #f0f9ff;
    color: #0369a1;
    border-color: #7dd3fc;
}

[data-theme="dark"] .nav-toast {
    background-color: var(--bg-color-secondary);
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

/* 移动端样式 */
.nav-mobile-header {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background-color: var(--bg-color);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    z-index: 1001;
    padding: 0 15px;
    align-items: center;
    justify-content: space-between;
}

.nav-mobile-menu,
.nav-mobile-pages-menu {
    width: 40px;
    height: 40px;
    border: none;
    background: none;
    padding: 8px;
    color: var(--text-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-mobile-logo {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    height: 40px;
    display: flex;
    align-items: center;
}

.nav-mobile-logo img {
    max-height: 36px;
    width: auto;
}

.nav-mobile-logo .text-logo {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-color);
}

.nav-mobile-pages-sidebar {
    position: fixed;
    top: 0;
    right: -280px;
    width: 280px;
    height: 100vh;
    background-color: var(--bg-color);
    box-shadow: -2px 0 10px rgba(0,0,0,0.1);
    z-index: 1100;
    overflow-y: auto;
    padding: 8px 0 20px;
    transition: right 0.3s ease;
}

.nav-mobile-pages-sidebar.active {
    right: 0;
}

.nav-mobile-page-item {
    display: block;
    padding: 15px 20px;
    color: var(--text-color);
    font-size: 15px;
    border-bottom: 1px solid var(--border-color);
    text-decoration: none;
}

/* 移动端下拉菜单 */
.nav-mobile-dropdown {
    border-bottom: 1px solid var(--border-color);
}

.nav-mobile-dropdown-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
    color: var(--text-color);
    font-size: 15px;
    cursor: pointer;
    border-bottom: none;
}

.nav-mobile-dropdown-toggle svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.nav-mobile-dropdown.active .nav-mobile-dropdown-toggle svg {
    transform: rotate(180deg);
}

.nav-mobile-dropdown-menu {
    display: none;
    background-color: var(--bg-color-secondary);
}

.nav-mobile-dropdown.active .nav-mobile-dropdown-menu {
    display: block;
}

.nav-mobile-page-subitem {
    display: block;
    padding: 12px 20px 12px 40px;
    color: var(--text-color);
    font-size: 14px;
    text-decoration: none;
    border-bottom: 1px solid var(--border-color);
}

.nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: rgba(0,0,0,0.5);
    z-index: 1099;
    display: none;
    opacity: 0;
    transition: opacity 0.3s;
}

.nav-overlay.active {
    display: block;
    opacity: 1;
}

/* 响应式 */
@media screen and (max-width: 1400px) {
    .nav-cards {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .nav-articles {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .nav-footer-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media screen and (max-width: 1200px) {
    .nav-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .nav-articles {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media screen and (max-width: 768px) {
    .nav-mobile-header {
        display: flex;
    }
    
    .nav-sidebar {
        left: -100%;
        z-index: 1100;
        width: 260px;
    }
    
    .nav-sidebar.active {
        left: 0;
    }
    
    .nav-main {
        margin-left: 0 !important;
        padding-top: 60px;
    }
    
    .nav-content {
        padding: 15px;
    }
    
    .nav-topbar {
        display: none;
    }
    
    .image-entrance-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    
    .nav-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    
    .nav-articles {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    
    .nav-card {
        padding: 12px;
    }
    
    .nav-card-logo {
        width: 36px;
        height: 36px;
        margin-right: 10px;
    }
    
    .nav-card-title {
        font-size: 13px;
    }
    
    .nav-card-desc {
        font-size: 11px;
    }
    
    .nav-detail-site {
        flex-direction: column;
        padding: 20px;
    }
    
    .nav-detail-site-logo {
        margin-bottom: 16px;
        margin-right: 0;
    }
    
    .nav-detail-site-content {
        flex-direction: column;
        width: 100%;
    }
    
    .nav-detail-site-actions {
        margin-top: 16px;
        width: 100%;
        justify-content: flex-start;
    }
    
    .nav-detail-content {
        padding: 20px;
    }
    
    .nav-article-header,
    .nav-article-content,
    .nav-article-footer {
        padding-left: 20px;
        padding-right: 20px;
    }
    
    .nav-footer-grid {
        display: none;
    }
    
    .nav-comment-form-row:first-child {
        grid-template-columns: 1fr;
    }
    
    /* 文章卡片响应式 */
    .nav-articles {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .nav-article-card .nav-article-content {
        padding: 12px;
    }
    
    .nav-article-detail .nav-article-content {
        padding: 15px 20px;
    }
    
    .nav-article-title {
        font-size: 14px;
    }
    
    .nav-article-meta {
        font-size: 12px;
    }
}

@media screen and (max-width: 480px) {
    .nav-articles {
        grid-template-columns: 1fr;
    }
    
    .nav-cards {
        grid-template-columns: 1fr;
    }
    
    .nav-card {
        padding: 16px;
    }
    
    .nav-card-logo {
        width: 40px;
        height: 40px;
    }
    
    .nav-detail-site-btn {
        flex: 1;
        justify-content: center;
    }
}

/* 侧边栏状态 */
.sidebar-hidden .nav-sidebar {
    left: -220px !important;
}

.sidebar-hidden .nav-main {
    margin-left: 0 !important;
}

.sidebar-visible .nav-sidebar {
    left: 0 !important;
}

.sidebar-visible .nav-main {
    margin-left: 220px !important;
}

/* 相关推荐区域 */
.nav-related-section {
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid var(--border-color);
}

.nav-section-title h2 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 20px;
}

.nav-related-cards {
    grid-template-columns: repeat(4, 1fr);
}

/* 响应式 */
@media screen and (max-width: 1400px) {
    .nav-related-cards {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media screen and (max-width: 1200px) {
    .nav-related-cards {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media screen and (max-width: 768px) {
    .nav-related-cards {
        grid-template-columns: 1fr;
    }
    
    .nav-related-section {
        margin-top: 30px;
        padding-top: 30px;
    }
}

/* ==================== 分页样式 ==================== */
.nav-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin: 40px 0 20px;
}

.nav-page-btn {
    min-width: 36px;
    height: 36px;
    padding: 0 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-size: 14px;
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
}

.nav-page-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.nav-page-btn.nav-page-current {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
    cursor: default;
}

.nav-page-btn.nav-page-disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.nav-page-btn.nav-page-disabled:hover {
    border-color: var(--border-color);
    color: var(--text-color);
}

.nav-page-ellipsis {
    min-width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-color-secondary);
    font-size: 14px;
}

.nav-page-prev svg,
.nav-page-next svg {
    flex-shrink: 0;
}

/* 响应式 */
@media screen and (max-width: 768px) {
    .nav-pagination {
        gap: 4px;
        margin: 30px 0 15px;
    }
    
    .nav-page-btn {
        min-width: 32px;
        height: 32px;
        padding: 0 8px;
        font-size: 13px;
    }
    
    .nav-page-ellipsis {
        min-width: 32px;
        height: 32px;
    }
}