/*
Theme Name: AI28 Nav
Theme URI: http://ai28.cn
Description: AI28 导航主题，用于收录和展示各类 AI 工具网站。
Author: AI28 Team
Author URI: http://ai28.cn
Version: 1.0
*/

:root {
    --primary-color: #1E40AF;
    --primary-dark: #1e3a8a;
    --accent-color: #F97316;
    --text-main: #111827;
    --text-secondary: #6B7280;
    --bg-light: #F3F4F6;
    --bg-white: #FFFFFF;
    --bg-secondary: #FAFAFA;
    --bg-hover: #EFF6FF;
    --bg-icon: #f0f0f0;
    --border-color: #E5E7EB;
    --sidebar-width: 240px;
    --header-height: 64px;
}

body.dark-mode {
    --primary-color: #3b82f6;
    --primary-dark: #60a5fa;
    --text-main: #f3f4f6;
    --text-secondary: #9ca3af;
    --bg-light: #111827;
    --bg-white: #1f2937;
    --bg-secondary: #374151;
    --bg-hover: rgba(59, 130, 246, 0.15);
    --bg-icon: #374151;
    --border-color: #374151;
}

/* Floating Action Buttons */
.fab-container {
    position: fixed;
    bottom: 40px;
    right: 40px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    z-index: 1000;
}

.fab-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: var(--bg-white);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 1.25rem;
}

.fab-btn:hover {
    color: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.15);
}

.fab-btn.active {
    background-color: var(--primary-color);
    color: white;
    border-color: transparent;
}

.back-to-top {
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
}

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

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--text-main);
    background-color: var(--bg-light);
    line-height: 1.5;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* Header */
.site-header {
    height: var(--header-height);
    background-color: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.header-inner {
    max-width: 1440px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo {
    display: flex;
    align-items: center;
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--primary-color);
}

.logo-icon {
    background: var(--primary-color);
    color: white;
    padding: 2px 6px;
    border-radius: 4px;
    margin-right: 4px;
}

.slogan {
    font-size: 0.875rem;
    color: var(--text-secondary);
    padding-left: 12px;
    border-left: 1px solid var(--border-color);
    display: none; /* Mobile hidden */
}

@media (min-width: 768px) {
    .slogan { display: block; }
}

.search-area {
    flex: 1;
    max-width: 500px;
    margin: 0 20px;
}

.search-box {
    position: relative;
    width: 100%;
}

.search-box input {
    width: 100%;
    padding: 10px 40px 10px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-light);
    transition: all 0.2s;
}

.search-box input:focus {
    outline: none;
    background: var(--bg-white);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(30, 64, 175, 0.1);
}

.search-btn {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
}

.header-actions {
    display: none;
    gap: 12px;
}

@media (min-width: 1024px) {
    .header-actions { display: flex; }
}

.btn {
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    border: 1px solid transparent;
}

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

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-main);
}

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

.mobile-menu-toggle {
    display: block;
    background: none;
    border: none;
    font-size: 1.25rem;
    color: var(--text-main);
    cursor: pointer;
}

@media (min-width: 1024px) {
    .mobile-menu-toggle { display: none; }
}

/* Layout */
.main-container {
    max-width: 1440px;
    margin: var(--header-height) auto 0;
    display: flex;
    min-height: calc(100vh - var(--header-height));
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-white);
    border-right: 1px solid var(--border-color);
    position: fixed;
    top: var(--header-height);
    bottom: 0;
    overflow-y: auto;
    display: none; /* Hidden on mobile by default */
    z-index: 900;
}

@media (min-width: 1024px) {
    .sidebar { display: block; position: sticky; height: calc(100vh - var(--header-height)); }
}

.sidebar-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.sidebar-actions {
    padding: 12px 20px 8px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.sidebar-action-btn {
    width: 100%;
    justify-content: center;
}

@media (min-width: 1024px) {
    .sidebar-actions {
        display: none;
    }
}

.category-nav {
    padding: 12px 0;
}

.nav-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 20px;
    color: var(--text-main);
    font-size: 0.9rem;
    transition: background 0.2s;
    cursor: pointer;
}

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

.nav-item .count {
    font-size: 0.75rem;
    color: var(--text-secondary);
    background: var(--bg-light);
    padding: 2px 6px;
    border-radius: 10px;
}

/* Content Area */
.content-area {
    flex: 1;
    padding: 24px;
    width: 100%;
    /* margin-left is handled by flex/sticky behavior on desktop */
}

.section {
    margin-bottom: 40px;
    scroll-margin-top: calc(var(--header-height) + 20px);
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.section-header h2 {
    font-size: 1.25rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
}

.badge {
    background-color: var(--accent-color);
    color: white;
    font-size: 0.75rem;
    padding: 2px 6px;
    border-radius: 4px;
    vertical-align: middle;
}

.subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 400;
    margin-left: 8px;
}

.view-more {
    font-size: 0.875rem;
    color: var(--primary-color);
    font-weight: 500;
}

/* Grids */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
}

.home-tools-grid {
    justify-content: space-between;
}

.home-tool-card {
    min-height: auto;
}

.home-card-header {
    padding: 10px;
    gap: 8px;
    align-items: center;
}

.home-tool-icon {
    width: 40px;
    height: 40px;
}

.home-tool-title {
    font-size: 0.95rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.2;
    margin-bottom: 2px;
}

.home-tool-desc {
    font-size: 0.82rem;
    color: var(--text-secondary);
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.2;
}

.featured-grid {
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
}

.tool-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.2s, box-shadow 0.2s;
    display: flex;
    flex-direction: column;
}

.tool-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.card-header {
    padding: 16px;
    display: flex;
    gap: 12px;
    align-items: flex-start;
}
.tool-rating-control{margin-top: 20px;}
.tool-icon {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    object-fit: cover;
}

.tool-info {
    flex: 1;
}

.tool-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-main);
}

.tool-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-tags {
    padding: 0 16px 16px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    font-size: 0.75rem;
    padding: 2px 8px;
    border-radius: 4px;
    background-color: var(--bg-light);
    color: var(--text-secondary);
}

.card-footer {
    padding: 12px 16px;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.rating {
    color: #FBBF24;
    display: flex;
    align-items: center;
    gap: 4px;
}

.tool-rating-control .rating-stars i {
    color: #D1D5DB;
    cursor: pointer;
    transition: color 0.15s ease;
}

.tool-rating-control .rating-stars i.fas {
    color: #FBBF24;
}

/* List View for New Tools */
.tools-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.list-item {
    background: var(--bg-white);
    padding: 12px 16px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 16px;
    transition: all 0.2s;
}

.list-item:hover {
    border-color: var(--primary-color);
}

.list-item img {
    width: 40px;
    height: 40px;
    border-radius: 6px;
}

.list-content {
    flex: 1;
}

.list-title {
    font-weight: 600;
    font-size: 0.95rem;
}

.list-meta {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* News Grid */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.news-card {
    background: var(--bg-white);
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.news-image {
    width: 100%;
    height: 160px;
    object-fit: cover;
    background: #e5e7eb;
}

.news-content {
    padding: 16px;
}

.news-title {
    font-weight: 600;
    margin-bottom: 8px;
    line-height: 1.4;
}

.news-date {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Footer */
.site-footer {
    background-color: var(--bg-white);
    border-top: 1px solid var(--border-color);
    padding: 48px 20px 24px;
    margin-top: 60px;
}

.footer-content {
    max-width: 1440px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
}

.footer-col h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-main);
}

.footer-col p, .footer-col a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 8px;
    display: block;
}

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

.social-links {
    display: flex;
    gap: 16px;
    margin-top: 16px;
}

.social-links a {
    font-size: 1.25rem;
}

.footer-wechat-hover {
    position: relative;
    display: inline-flex;
    align-items: center;
    cursor: pointer;
}

.footer-wechat-popup {
    position: absolute;
    bottom: 150%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.15);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, transform 0.2s ease;
    z-index: 20;
}

.footer-wechat-popup img {
    width: 120px;
    height: auto;
    display: block;
}

.footer-wechat-hover:hover .footer-wechat-popup {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-4px);
}

.footer-bottom {
    max-width: 1440px;
    margin: 40px auto 0;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 1023px) {
    .sidebar {
        position: fixed;
        left: -100%;
        transition: left 0.3s;
        width: 280px;
        box-shadow: 2px 0 10px rgba(0,0,0,0.1);
    }
    
    .sidebar.active {
        left: 0;
        display: block;
    }
}

/* Pages: Category & Tool Detail Styles */

/* Breadcrumbs */
.breadcrumbs {
    display: flex;
    align-items: center;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.breadcrumbs a {
    color: var(--text-secondary);
    transition: color 0.2s;
}

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

.breadcrumbs .separator {
    margin: 0 8px;
    color: #9CA3AF;
}

.breadcrumbs .current {
    color: var(--text-main);
    font-weight: 500;
}

/* Category Header */
.category-header-block {
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
}

.category-header-block h1 {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.category-header-block h1 i {
    color: var(--primary-color);
}

.category-desc {
    color: var(--text-secondary);
    max-width: 800px;
    font-size: 1rem;
    line-height: 1.6;
}

/* Filter Bar */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    gap: 16px;
}

.filter-group {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 6px 16px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    background: var(--bg-white);
    color: var(--text-secondary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s;
}

.filter-btn:hover, .filter-btn.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.sort-select {
    padding: 6px 12px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    color: var(--text-main);
    background: var(--bg-white);
    font-size: 0.875rem;
    outline: none;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 48px;
}

.page-link {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background: var(--bg-white);
    color: var(--text-main);
    transition: all 0.2s;
}

.page-link:hover, .page-link.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.page-link.disabled {
    opacity: 0.5;
    pointer-events: none;
    background: var(--bg-light);
}

.page-dots {
    color: var(--text-secondary);
}

.pagination .page-numbers {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background: var(--bg-white);
    color: var(--text-main);
    margin: 0 2px;
    transition: all 0.2s;
}

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

.pagination .page-numbers.dots {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: default;
}

/* Tool Detail Page */
.tool-detail-header {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 32px;
    margin-bottom: 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 32px;
    flex-wrap: wrap;
}

.tool-main-info {
    display: flex;
    gap: 24px;
    align-items: flex-start;
    flex: 1;
    min-width: 300px;
}

.tool-big-icon {
    width: 96px;
    height: 96px;
    border-radius: 16px;
    object-fit: cover;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.tool-meta-content {
    flex: 1;
}

.tool-name {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.verified-icon {
    color: #10B981;
    font-size: 1.25rem;
}

.tool-short-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.tool-tags-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.badge-free {
    background-color: #ECFDF5;
    color: #059669;
}

body.dark-mode .badge-free {
    background-color: rgba(16, 185, 129, 0.2);
    color: #34d399;
}

.tool-stats {
    display: flex;
    gap: 20px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

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

.tool-stats .stat-item i.fas.fa-star {
    color: #FBBF24;
}

.tool-actions-area {
    display: flex;
    gap: 12px;
}

.ai28-favorite-btn[data-favorited="1"] i.fa-heart {
    color: #EF4444;
}

.btn-lg {
    padding: 12px 24px;
    font-size: 1rem;
}

/* Tool Detail Body Layout */
.tool-detail-body {
    display: flex;
    gap: 32px;
    align-items: flex-start;
}

.tool-content-main {
    flex: 1;
    min-width: 0; /* prevent overflow */
}

.tool-content-sidebar {
    width: 300px;
    flex-shrink: 0;
}

/* Screenshot */
.tool-screenshot {
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    margin-bottom: 32px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.tool-screenshot img {
    width: 100%;
    height: auto;
    display: block;
}

/* Detail Sections */
.detail-section {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 32px;
    margin-bottom: 32px;
}

.detail-section h2 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

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

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

.feature-list li {
    margin-bottom: 12px;
    display: flex;
    gap: 10px;
    align-items: flex-start;
}

.feature-list i {
    color: #10B981;
    margin-top: 5px;
}

/* Sidebar Widgets */
.sidebar-widget {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 24px;
}

.sidebar-widget h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.mini-tool-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.mini-tool-item {
    display: flex;
    gap: 12px;
    align-items: center;
}

.mini-tool-item img {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    object-fit: cover;
}

.mini-tool-info h4 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-main);
}

.mini-tool-info span {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.widget-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

/* Responsive for Detail Page */
@media (max-width: 1023px) {
    .tool-detail-body {
        flex-direction: column;
    }
    
    .tool-content-sidebar {
        width: 100%;
    }
    
    .tool-detail-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .tool-actions-area {
        justify-content: stretch;
    }
    
    .tool-actions-area .btn {
        flex: 1;
        justify-content: center;
    }
}

@media (max-width: 767px) {
    .tool-detail-header {
        padding: 20px;
        gap: 20px;
    }
    .tool-main-info {
        flex-direction: column;
        align-items: flex-start;
        min-width: 0;
    }
    .tool-big-icon {
        width: 72px;
        height: 72px;
    }
    .tool-name {
        font-size: 1.4rem;
        flex-wrap: wrap;
    }
    .tool-short-desc {
        font-size: 0.95rem;
    }
    .tool-stats {
        flex-wrap: wrap;
        gap: 10px;
    }
    .tool-actions-area {
        flex-direction: column;
    }
    .tool-actions-area .btn-lg {
        width: 100%;
        justify-content: center;
    }
    .tool-detail-body {
        gap: 20px;
    }
    .detail-section {
        padding: 20px;
    }
}

/* Tool Card Link Wrapper */
.tool-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
    height: 100%;
    transition: transform 0.2s;
}

.tool-card-link:hover {
    transform: translateY(-2px);
}

.tool-card-link:hover .tool-card {
    border-color: var(--primary-color);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    transform: none; /* Reset inner transform as outer handles it */
}

/* Override inner tool card hover if wrapped */
.tool-card-link .tool-card {
    height: 100%;
}

/* News List & Detail Styles */
.news-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
    transition: transform 0.2s;
}

.news-card-link:hover {
    transform: translateY(-2px);
}

.news-card-link:hover .news-card {
    border-color: var(--primary-color);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.news-article {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 40px;
    margin-bottom: 32px;
}

.article-header {
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
}

.article-title {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 16px;
    color: var(--text-main);
}

.article-meta {
    display: flex;
    gap: 20px;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

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

.article-cover {
    margin-bottom: 32px;
    border-radius: 8px;
    overflow: hidden;
}

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

.article-tags {
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

ol.comment-list {
    list-style: none !important;
    margin: 0;
    padding: 0;
}

.post-comments-card .comment-list,
.tool-comments .comment-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.post-comments-card .comment,
.tool-comments .comment {
    border-bottom: 1px solid var(--border-color);
    padding: 16px 0;
}

.post-comments-card .comment:last-child,
.tool-comments .comment:last-child {
    border-bottom: none;
}

.post-comments-card .comment-meta,
.tool-comments .comment-meta {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.post-comments-card .comment-author,
.tool-comments .comment-author {
    font-weight: 600;
    color: var(--text-main);
}

.post-comments-card .comment-content,
.tool-comments .comment-content {
    font-size: 0.9rem;
    line-height: 1.6;
    margin-top: 4px;
}

.post-comments-card .reply,
.tool-comments .reply {
    margin-top: 8px;
    font-size: 0.8rem;
}

.post-comments-card .reply a,
.tool-comments .reply a {
    color: var(--primary-color);
}

.post-comments-card .comment-respond,
.tool-comments .comment-respond {
    margin-top: 24px;
}

.post-comments-card .comment-respond input[type="text"],
.post-comments-card .comment-respond input[type="email"],
.post-comments-card .comment-respond input[type="url"],
.post-comments-card .comment-respond textarea,
.tool-comments .comment-respond input[type="text"],
.tool-comments .comment-respond input[type="email"],
.tool-comments .comment-respond input[type="url"],
.tool-comments .comment-respond textarea {
    width: 100%;
    max-width: 500px;
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-secondary);
    color: var(--text-main);
    font-size: 0.9rem;
    margin-bottom: 12px;
    box-sizing: border-box;
}

.post-comments-card .comment-respond textarea,
.tool-comments .comment-respond textarea {
    min-height: 120px;
}

.post-comments-card .comment-respond input:focus,
.post-comments-card .comment-respond textarea:focus,
.tool-comments .comment-respond input:focus,
.tool-comments .comment-respond textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background: var(--bg-white);
}

.post-comments-card .form-submit input[type="submit"],
.tool-comments .form-submit input[type="submit"] {
    background: var(--primary-color);
    color: #fff;
    padding: 8px 18px;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    font-size: 0.9rem;
}

.post-comments-card .form-submit input[type="submit"]:hover,
.tool-comments .form-submit input[type="submit"]:hover {
    background: var(--primary-dark);
}

.post-comments-card .comment-notes,
.tool-comments .comment-notes {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.post-comments-card #comments,
.tool-comments #comments {
    margin: 0;
}

.post-comments-card .comment-list,
.tool-comments .comment-list {
    margin-top: 8px;
}

.post-comments-card .comment-body,
.tool-comments .comment-body {
    display: block;
}

.post-comments-card .comment-author,
.tool-comments .comment-author {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 4px;
}

.post-comments-card .comment-author .avatar,
.tool-comments .comment-author .avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    margin: 0;
    float: none;
}

.post-comments-card .comment-metadata,
.tool-comments .comment-metadata {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 2px;
}

.post-comments-card .children,
.tool-comments .children {
    margin-left: 40px;
    padding-left: 16px;
    border-left: 1px dashed var(--border-color);
}

.post-comments-card .comment-respond form,
.tool-comments .comment-respond form {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.post-comments-card .comment-respond p,
.tool-comments .comment-respond p {
    margin: 0;
}

.post-comments-card .comment-notes,
.tool-comments .comment-notes {
    order: 0;
    width: 100%;
}

.post-comments-card .comment-form-comment,
.tool-comments .comment-form-comment {
    order: 1;
    width: 100%;
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.post-comments-card .comment-form-comment::before,
.tool-comments .comment-form-comment::before {
    content: "";
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-secondary);
    flex-shrink: 0;
}

.post-comments-card .comment-form-comment textarea,
.tool-comments .comment-form-comment textarea {
    max-width: none;
    width: 100%;
    min-height: 120px;
}

.post-comments-card .comment-form-author,
.post-comments-card .comment-form-email,
.post-comments-card .comment-form-url,
.tool-comments .comment-form-author,
.tool-comments .comment-form-email,
.tool-comments .comment-form-url {
    order: 2;
    flex: 1;
}

.post-comments-card .comment-form-cookies-consent,
.tool-comments .comment-form-cookies-consent {
    order: 3;
    display: flex;
    align-items: center;
    font-size: 0.85rem;
}

.post-comments-card .comment-form-cookies-consent input,
.tool-comments .comment-form-cookies-consent input {
    width: auto;
    max-width: none;
    margin-right: 6px;
}

.post-comments-card .form-submit,
.tool-comments .form-submit {
    order: 4;
    margin-left: auto;
}

@media (min-width: 768px) {
    .post-comments-card .comment-form-author,
    .post-comments-card .comment-form-email,
    .post-comments-card .comment-form-url,
    .tool-comments .comment-form-author,
    .tool-comments .comment-form-email,
    .tool-comments .comment-form-url {
        max-width: none;
    }
}

@media (max-width: 768px) {
    .news-article {
        padding: 20px;
    }
    .article-title {
        font-size: 1.5rem;
    }
    .article-meta {
        flex-wrap: wrap;
        gap: 12px;
    }
}