/* Typecho Default Theme Style */

:root {
    --primary-color: #467b96;
    --text-color: #444;
    --text-light: #999;
    --border-color: #e9e9e9;
    --bg-color: #fff;
    --bg-gray: #f7f7f7;
    --link-color: #467b96;
    --link-hover: #2d5c73;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --max-width: 900px;
    --sidebar-width: 280px;
}

/* Dark Mode */
[data-theme="dark"] {
    --primary-color: #5a9fb8;
    --text-color: #d4d4d4;
    --text-light: #888;
    --border-color: #333;
    --bg-color: #1e1e1e;
    --bg-gray: #2a2a2a;
    --link-color: #5a9fb8;
    --link-hover: #7bb8d1;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}
[data-theme="dark"] .article-content pre {
    background: #444444;
}

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

body {
    font-family:
        "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Hiragino Sans GB",
        "Microsoft YaHei", sans-serif;
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-color);
    background: var(--bg-gray);
}

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

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

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

/* Header */
.site-header {
    background: var(--bg-color);
    border-bottom: 1px solid var(--border-color);
    padding: 20px 0;
}

.header-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-title {
    font-size: 24px;
    font-weight: 400;
    color: var(--text-color);
}

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

.site-title-link {
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

.site-title-logo {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    object-fit: cover;
    flex-shrink: 0;
}

.site-nav {
    display: flex;
    gap: 20px;
    align-items: center;
}

.site-nav a {
    color: var(--text-light);
    font-size: 14px;
}

.site-nav a:hover,
.site-nav a.active {
    color: var(--link-color);
}

/* Theme Toggle Button */
.theme-toggle {
    background: transparent;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    padding: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.2s;
}

.theme-toggle:hover {
    color: var(--link-color);
    background: var(--bg-gray);
}

.theme-toggle svg {
    display: block;
}

/* Theme Switcher */
.theme-switcher {
    position: relative;
    display: inline-block;
}

.theme-switch-btn {
    background: transparent;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    padding: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.2s;
}

.theme-switch-btn:hover {
    color: var(--link-color);
    background: var(--bg-gray);
}

.theme-options {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: var(--shadow);
    min-width: 180px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s;
    z-index: 1000;
}

.theme-options.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.theme-option {
    display: flex;
    flex-direction: column;
    padding: 12px 16px;
    color: var(--text-color);
    text-decoration: none;
    transition: background-color 0.2s;
    border-bottom: 1px solid var(--border-color);
}

.theme-option:last-child {
    border-bottom: none;
}

.theme-option:hover {
    background: var(--bg-gray);
}

.theme-option.active {
    background: var(--bg-gray);
    color: var(--link-color);
}

.theme-option .theme-name {
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 2px;
}

.theme-option .theme-desc {
    font-size: 12px;
    color: var(--text-light);
}

.theme-option.active .theme-desc {
    color: var(--link-color);
    opacity: 0.8;
}

@media (max-width: 768px) {
    .theme-options {
        right: auto;
        left: 0;
    }
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 48px;
    height: 48px;
    background: var(--link-color);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 100;
}

.back-to-top:hover {
    background: var(--link-hover);
    transform: translateY(0) scale(1.1);
}

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

@media (max-width: 768px) {
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
    }
}

/* Main Container */
.site-main {
    max-width: var(--max-width);
    margin: 30px auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr var(--sidebar-width);
    gap: 30px;
}

/* Content */
.site-content {
    background: var(--bg-color);
    padding: 30px;
    box-shadow: var(--shadow);
    min-width: 0;
}

/* Post List */
.post-list {
    display: grid;
    gap: 30px;
}

.post-item {
    padding-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
}

.post-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.post-title {
    font-size: 22px;
    font-weight: 400;
    margin-bottom: 10px;
    line-height: 1.4;
}

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

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

.post-meta {
    font-size: 12px;
    color: var(--text-light);
    margin-bottom: 15px;
}

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

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

.post-meta span {
    margin-right: 15px;
}

.post-excerpt {
    color: var(--text-color);
    line-height: 1.8;
    margin-bottom: 15px;
}

.posts-index-page {
    display: grid;
    gap: 24px;
}

.posts-index-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.posts-index-title {
    margin: 0 0 10px;
    font-size: 28px;
    font-weight: 400;
    line-height: 1.3;
}

.posts-index-subtitle {
    margin: 0;
    max-width: 720px;
    color: var(--text-light);
    line-height: 1.8;
}

.posts-index-summary {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 10px;
    font-size: 12px;
    color: var(--text-light);
    white-space: nowrap;
}

.posts-index-summary span {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    background: var(--bg-gray);
}

.posts-index-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.posts-index-actions a {
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    background: var(--bg-gray);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    text-decoration: none;
    font-size: 13px;
    transition:
        color 0.2s ease,
        border-color 0.2s ease,
        background 0.2s ease;
}

.posts-index-actions a:hover {
    color: var(--link-color);
    border-color: var(--link-color);
    background: var(--bg-color);
}

.tag-overview-panel,
.tag-context-banner {
    padding: 20px;
    border: 1px solid var(--border-color);
    background: var(--bg-gray);
}

.tag-overview-head,
.tag-context-banner {
    display: grid;
    gap: 16px;
}

.tag-overview-kicker,
.tag-context-kicker {
    margin: 0 0 8px;
    color: var(--text-light);
    font-size: 12px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.tag-overview-head h2,
.tag-context-copy h2 {
    margin: 0;
    font-size: 26px;
    font-weight: 400;
}

.tag-overview-head p,
.tag-context-copy p,
.tag-overview-meta {
    margin: 8px 0 0;
    color: var(--text-light);
    line-height: 1.8;
}

.tag-overview-stats,
.tag-context-metrics {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag-overview-stats span,
.tag-context-metric,
.tag-context-latest {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    border: 1px solid var(--border-color);
    background: var(--bg-color);
    color: var(--text-color);
    font-size: 13px;
}

.tag-overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 14px;
    margin-top: 18px;
}

.tag-overview-card {
    padding: 16px;
    border: 1px solid var(--border-color);
    background: var(--bg-color);
}

.tag-overview-card-top,
.tag-context-metrics {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.tag-overview-name {
    color: var(--link-color);
    font-size: 18px;
}

.tag-overview-count {
    font-size: 12px;
    color: var(--text-light);
}

.tag-overview-latest,
.tag-context-latest {
    margin-top: 10px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
}

.tag-cloud-page {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 22px 0 0;
}

.tag-cloud-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    background: var(--bg-color);
    color: var(--text-color);
    font-size: calc(13px * var(--tag-scale, 1));
    transition:
        color 0.2s ease,
        border-color 0.2s ease,
        background 0.2s ease;
}

.tag-cloud-pill:hover {
    color: var(--link-color);
    border-color: var(--link-color);
    background: var(--bg-gray);
}

.tag-cloud-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 24px;
    padding: 0 8px;
    background: var(--bg-gray);
    font-size: 12px;
}

.tag-context-banner {
    grid-template-columns: minmax(0, 1.1fr) minmax(220px, 0.9fr);
}

.tag-context-metric {
    flex-direction: column;
    align-items: flex-start;
}

.tag-context-metric strong,
.tag-context-latest strong {
    font-size: 18px;
    font-weight: 400;
}

@media (max-width: 768px) {
    .tag-context-banner {
        grid-template-columns: 1fr;
    }
}

.posts-index-list {
    gap: 22px;
}

.posts-index-item {
    padding-bottom: 22px;
}

.read-more {
    color: var(--link-color);
    font-size: 13px;
}

/* Article */
.article-header {
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.article-title {
    font-size: 28px;
    font-weight: 400;
    margin-bottom: 15px;
    line-height: 1.4;
}

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

.article-meta span {
    margin-right: 15px;
}

.article-content {
    font-size: 15px;
    line-height: 1.9;
    color: var(--text-color);
}

.article-content h1,
.article-content h2,
.article-content h3,
.article-content h4,
.article-content h5,
.article-content h6 {
    font-weight: 400;
    margin: 1.5em 0 0.8em;
    line-height: 1.4;
}

.article-content h1 {
    font-size: 24px;
}
.article-content h2 {
    font-size: 22px;
}
.article-content h3 {
    font-size: 20px;
}
.article-content h4 {
    font-size: 18px;
}

.article-content p {
    margin-bottom: 1.2em;
}

.article-content ul,
.article-content ol {
    padding-left: 2em;
    margin-bottom: 1.2em;
}

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

.article-content code {
    padding: 2px 6px;
    background: var(--bg-gray);
    border: 1px solid var(--border-color);
    border-radius: 3px;
    font-family: "Courier New", Courier, monospace;
    font-size: 0.9em;
}

.article-content pre {
    margin: 1.5em 0;
    padding: 15px;
    background: #f8f8f8;
    border: 1px solid var(--border-color);
    overflow-x: auto;
}

.article-content pre code {
    padding: 0;
    background: transparent;
    border: none;
}

.article-content img {
    margin: 1.5em 0;
    display: block;
}

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

.article-content th,
.article-content td {
    padding: 10px;
    border: 1px solid var(--border-color);
    text-align: left;
}

.article-content th {
    background: var(--bg-gray);
}

.article-tags {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.article-tags a {
    display: inline-block;
    padding: 4px 10px;
    margin-right: 8px;
    margin-bottom: 8px;
    background: var(--bg-gray);
    color: var(--text-light);
    font-size: 12px;
    border-radius: 3px;
}

.article-tags a:hover {
    background: var(--link-color);
    color: white;
}

/* Post Navigation */
.post-nav {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
}

.post-nav a {
    color: var(--text-light);
    font-size: 13px;
}

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

/* Comments */
.comments-section {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

.comments-title {
    font-size: 18px;
    font-weight: 400;
    margin-bottom: 20px;
}

.comment-form textarea {
    width: 100%;
    min-height: 120px;
    padding: 10px;
    border: 1px solid var(--border-color);
    font-family: inherit;
    font-size: 14px;
    resize: vertical;
}

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

.comment-form-footer {
    margin-top: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.btn {
    padding: 8px 20px;
    background: var(--link-color);
    color: white;
    border: none;
    cursor: pointer;
    font-size: 13px;
}

.btn:hover {
    background: var(--link-hover);
}

.comment-list {
    margin-top: 20px;
}

.comment-item {
    padding: 15px 0;
    border-bottom: 1px solid var(--border-color);
}

.comment-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
}

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

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

.comment-content {
    color: var(--text-color);
    line-height: 1.8;
}

/* Sidebar */
.site-sidebar {
    font-size: 13px;
}

.widget {
    background: var(--bg-color);
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
}

.widget-title {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}

.widget ul {
    list-style: none;
}

.widget li {
    padding: 8px 0;
    border-bottom: 1px dashed var(--border-color);
}

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

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

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

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag-cloud a {
    display: inline-block;
    padding: 4px 10px;
    background: var(--bg-gray);
    color: var(--text-light);
    font-size: 12px;
    border-radius: 3px;
}

.tag-cloud a:hover {
    background: var(--link-color);
    color: white;
}

.recent-comments-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.recent-comments-list .recent-comment-item {
    padding: 0 0 14px;
    margin-bottom: 14px;
    border-bottom: 1px dashed var(--border-color);
}

.recent-comments-list .recent-comment-item:last-child {
    padding-bottom: 0;
    margin-bottom: 0;
    border-bottom: none;
}

.recent-comment-link {
    display: block;
}

.recent-comment-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 8px;
    font-size: 12px;
}

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

.recent-comment-time {
    color: var(--text-light);
}

.recent-comment-excerpt {
    margin: 0;
    color: var(--text-light);
    line-height: 1.7;
}

.recent-comment-post {
    margin-top: 8px;
    color: var(--link-color);
    font-size: 12px;
}

/* Tags Page */
.tags-container {
    background: var(--bg-color);
    padding: 30px;
    box-shadow: var(--shadow);
}

.tags-title {
    font-size: 24px;
    font-weight: 400;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.tags-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.tag-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 15px;
    background: var(--bg-gray);
    color: var(--text-color);
    border-radius: 3px;
    transition: all 0.2s;
}

.tag-item:hover {
    background: var(--link-color);
    color: white;
}

.tag-count {
    font-size: 12px;
    opacity: 0.7;
}

/* Archive */
.archive-list {
    display: grid;
    gap: 30px;
}

.archive-year {
    padding-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
}

.archive-year:last-child {
    border-bottom: none;
}

.archive-year-title {
    font-size: 20px;
    font-weight: 400;
    margin-bottom: 20px;
}

.archive-items {
    display: grid;
    gap: 15px;
}

.archive-item {
    display: flex;
    gap: 15px;
}

.archive-date {
    min-width: 80px;
    color: var(--text-light);
    font-size: 12px;
}

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

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

/* Pagination */
.pagination {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: center;
    gap: 10px;
}

.page-number,
.page-link {
    padding: 6px 12px;
    border: 1px solid var(--border-color);
    color: var(--text-color);
}

.page-number:hover,
.page-link:hover {
    border-color: var(--link-color);
    color: var(--link-color);
}

.page-number.current {
    background: var(--link-color);
    color: white;
    border-color: var(--link-color);
}

/* Footer */
.site-footer {
    background: var(--bg-color);
    border-top: 1px solid var(--border-color);
    padding: 30px 0;
    margin-top: 40px;
    text-align: center;
    color: var(--text-light);
    font-size: 12px;
}

.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

.footer-inner p {
    margin: 5px 0;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-light);
}

/* Responsive */
@media (max-width: 768px) {
    .site-main {
        grid-template-columns: 1fr;
    }

    .site-content {
        padding: 20px;
    }

    .header-inner {
        flex-direction: column;
        gap: 15px;
    }

    .site-nav {
        flex-wrap: wrap;
        justify-content: center;
    }

    .post-nav {
        flex-direction: column;
        gap: 10px;
    }
}

/* User Avatar and Dropdown */
.header-user-dropdown {
    position: relative;
    display: inline-block;
}

.header-user-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: transparent;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    transition: background-color 0.2s;
    color: var(--text-color);
}

.header-user-btn:hover {
    background: var(--bg-gray);
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border-color);
}

.user-avatar-fallback {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--link-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
}

.user-name {
    font-size: 14px;
    font-weight: 500;
    max-width: 100px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.dropdown-icon {
    width: 16px;
    height: 16px;
    transition: transform 0.2s;
}

.header-user-btn:hover .dropdown-icon {
    transform: rotate(180deg);
}

.user-dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    min-width: 180px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s;
    z-index: 1000;
}

.user-dropdown-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    color: var(--text-color);
    text-decoration: none;
    transition: background-color 0.2s;
}

.dropdown-item:hover {
    background: var(--bg-gray);
}

.dropdown-item i {
    width: 18px;
    height: 18px;
}

.dropdown-divider {
    height: 1px;
    background: var(--border-color);
    margin: 4px 0;
}

/* Comment Avatar */
.comment-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border-color);
    flex-shrink: 0;
}

.comment-avatar-fallback {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--link-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 16px;
    flex-shrink: 0;
}

.comment-item {
    display: flex;
    gap: 12px;
    padding: 16px;
    background: var(--bg-gray);
    border-radius: 8px;
    margin-bottom: 12px;
}

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

.comment-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

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

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

.comment-body {
    color: var(--text-color);
    line-height: 1.6;
    word-wrap: break-word;
}

/* Mobile adjustments */
@media (max-width: 768px) {
    .user-name {
        display: none;
    }

    .user-avatar,
    .user-avatar-fallback {
        width: 28px;
        height: 28px;
    }

    .comment-avatar,
    .comment-avatar-fallback {
        width: 32px;
        height: 32px;
        font-size: 14px;
    }
}

/* TOC (Table of Contents) Styles */
.toc-container {
    font-size: 13px;
}

.toc-nav {
    max-height: calc(100vh - 200px);
    overflow-y: auto;
    overflow-x: hidden;
}

.toc-nav::-webkit-scrollbar {
    width: 4px;
}

.toc-nav::-webkit-scrollbar-track {
    background: var(--bg-gray);
}

.toc-nav::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 2px;
}

.toc-nav::-webkit-scrollbar-thumb:hover {
    background: var(--text-light);
}

.toc-list {
    list-style: none;
    padding-left: 0;
    margin: 0;
}

.toc-list .toc-list {
    padding-left: 16px;
    margin-top: 4px;
}

.toc-list li {
    margin: 0;
    padding: 0;
    border: none;
}

.toc-link {
    display: block;
    padding: 6px 10px;
    color: var(--text-color);
    text-decoration: none;
    border-left: 2px solid transparent;
    transition: all 0.2s;
    line-height: 1.5;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.toc-link:hover {
    color: var(--link-color);
    background: var(--bg-gray);
    border-left-color: var(--link-color);
}

.toc-link.active {
    color: var(--link-color);
    background: var(--bg-gray);
    border-left-color: var(--link-color);
    font-weight: 600;
}

.toc-toggle-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: var(--bg-gray);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-color);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
}

.toc-toggle-btn:hover {
    background: var(--link-color);
    color: white;
    border-color: var(--link-color);
}

.toc-toggle-btn svg {
    flex-shrink: 0;
}

/* Smooth scroll behavior */
html {
    scroll-behavior: smooth;
}

/* Add some spacing to headings for better anchor positioning */
.article-content h1,
.article-content h2,
.article-content h3,
.article-content h4,
.article-content h5,
.article-content h6 {
    scroll-margin-top: 20px;
}

/* Mobile TOC adjustments */
@media (max-width: 768px) {
    .toc-nav {
        max-height: 400px;
    }

    .toc-toggle-btn {
        width: 100%;
        justify-content: center;
    }
}

/* Code Copy Button */
.code-block-wrapper {
    position: relative;
    margin: 1.5em 0;
    content-visibility: auto;
    contain-intrinsic-size: 320px 720px;
    overflow: visible;
}

.code-block-wrapper pre {
    margin: 0;
}

.code-block-wrapper.has-code-toolbar pre,
.article-content pre.has-code-toolbar {
    padding-top: 56px;
}

.code-toolbar {
    position: absolute;
    top: 8px;
    right: 8px;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 8px;
    max-width: calc(100% - 16px);
}

.large-code-toolbar {
    position: static;
    margin-bottom: 10px;
    justify-content: flex-start;
    align-items: center;
    flex-wrap: wrap;
    row-gap: 8px;
}

.code-language-badge {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 0 10px;
    border-radius: 999px;
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.92);
    color: var(--text-color);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    white-space: nowrap;
}

.code-copy-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: var(--bg-gray);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-color);
    font-size: 12px;
    cursor: pointer;
    opacity: 0.38;
    transition: all 0.2s;
    z-index: 10;
}

@media (hover: hover) and (pointer: fine) {
    .code-block-wrapper:hover .code-copy-btn,
    .code-block-wrapper:focus-within .code-copy-btn {
        opacity: 1;
    }
}

@media (hover: none), (pointer: coarse) {
    .code-copy-btn {
        opacity: 1;
    }
}

.code-copy-btn:hover {
    background: var(--link-color);
    color: white;
    border-color: var(--link-color);
}

.code-copy-btn.copied {
    background: #28a745;
    color: white;
    border-color: #28a745;
}

.large-code-actions {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
    flex-wrap: wrap;
}

.large-code-expand-btn {
    opacity: 1;
}

.large-code-expand-btn[disabled] {
    cursor: not-allowed;
    opacity: 0.68;
}

.code-copy-btn svg {
    flex-shrink: 0;
}

.code-copy-btn .copy-text {
    white-space: nowrap;
}

/* Large code block styles - most styles are handled by JavaScript */
.large-code-block code {
    display: block;
    white-space: pre;
}


.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    z-index: 220;
    opacity: 0;
    pointer-events: none;
    background: rgba(0, 0, 0, 0.06);
    transition: opacity 0.2s ease;
}

.reading-progress.is-visible {
    opacity: 1;
}

.reading-progress-bar {
    display: block;
    width: 0;
    height: 100%;
    background: var(--link-color);
    box-shadow: 0 0 12px rgba(51, 122, 183, 0.28);
    transition: width 0.12s ease-out;
}

/* Mobile adjustments for code copy button */
@media (max-width: 768px) {
    .code-block-wrapper.has-code-toolbar pre,
    .article-content pre.has-code-toolbar {
        padding-top: 52px;
    }

    .code-toolbar {
        gap: 6px;
    }

    .large-code-toolbar {
        margin-bottom: 8px;
        gap: 6px;
    }

    .large-code-actions {
        width: 100%;
        justify-content: flex-start;
        margin-left: 0;
    }

    .code-copy-btn {
        opacity: 1;
        padding: 4px 8px;
        font-size: 11px;
    }

    .code-language-badge {
        min-height: 24px;
        padding: 0 8px;
        font-size: 10px;
    }

    .code-copy-btn .copy-text {
        display: none;
    }
}

/* Category Overview */
.category-overview-header {
    margin-bottom: 28px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--border-color);
}

.category-overview-title {
    margin: 0 0 8px;
    font-size: 28px;
    font-weight: 400;
}

.category-overview-subtitle {
    margin: 0;
    color: var(--text-light);
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.category-card {
    padding: 22px;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
}

.category-card-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 14px;
}

.category-card-title {
    margin: 0 0 6px;
    font-size: 22px;
    font-weight: 400;
}

.category-card-title a,
.category-card-title span {
    color: var(--text-color);
    text-decoration: none;
}

.category-card-title a:hover {
    color: var(--link-color);
}

.category-card-meta {
    margin: 0;
    font-size: 13px;
    color: var(--text-light);
}

.category-card-count {
    min-width: 42px;
    padding: 6px 10px;
    background: var(--bg-gray);
    color: var(--link-color);
    font-size: 13px;
    text-align: center;
}

.category-card-highlight {
    margin: 0 0 14px;
    color: var(--text-light);
    line-height: 1.7;
}

.category-card-highlight a {
    color: var(--text-color);
    text-decoration: none;
}

.category-card-highlight a:hover {
    color: var(--link-color);
}

.category-card-list {
    margin: 0 0 18px;
    padding-left: 18px;
}

.category-card-list li {
    margin-bottom: 8px;
}

.category-card-list a {
    color: var(--text-color);
    text-decoration: none;
}

.category-card-list a:hover {
    color: var(--link-color);
}

.category-card-link {
    color: var(--link-color);
    text-decoration: none;
}

.category-card-link:hover {
    text-decoration: underline;
}

.home-category-section {
    margin-top: 40px;
}

.home-more-link {
    margin-top: 20px;
}

.home-more-link a {
    color: var(--link-color);
    text-decoration: none;
}

.home-more-link a:hover {
    text-decoration: underline;
}

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

    .category-card {
        padding: 18px;
    }

    .category-card-title {
        font-size: 20px;
    }

    .posts-index-header {
        flex-direction: column;
    }

    .posts-index-title {
        font-size: 24px;
    }

    .posts-index-summary {
        justify-content: flex-start;
        white-space: normal;
    }

    .posts-index-actions a {
        width: 100%;
        justify-content: center;
    }
}