/* ========================================
   Community Page Styles
   ======================================== */

/* Community Hero */
.community-hero {
    padding: 140px 0 60px;
    background: var(--bg-secondary);
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.community-hero h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.community-hero > .container > p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: 32px;
}

/* Search */
.community-search {
    display: flex;
    align-items: center;
    max-width: 600px;
    margin: 0 auto 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color var(--transition-fast);
}

.community-search:focus-within {
    border-color: var(--accent-primary);
}

.community-search .search-icon {
    width: 20px;
    height: 20px;
    margin-left: 16px;
    color: var(--text-muted);
}

.community-search input {
    flex: 1;
    padding: 16px;
    background: none;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-size: 1rem;
}

.community-search input::placeholder {
    color: var(--text-muted);
}

.search-btn {
    padding: 12px 24px;
    margin: 6px;
    background: var(--accent-gradient);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.search-btn:hover {
    opacity: 0.9;
}

/* Tags */
.community-tags {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}

.tag-label {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.community-tags .tag {
    padding: 6px 14px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 100px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.community-tags .tag:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

/* Community Main Layout */
.community-main {
    padding: 40px 0 80px;
}

.community-layout {
    display: grid;
    grid-template-columns: 260px 1fr 280px;
    gap: 24px;
}

/* Sidebar */
.community-sidebar,
.community-sidebar-right {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.sidebar-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px;
}

.sidebar-card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

/* Category List */
.category-list {
    list-style: none;
}

.category-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    margin: 4px 0;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.category-list li:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.category-list li.active {
    background: rgba(99, 102, 241, 0.1);
    color: var(--accent-primary);
}

.category-list li svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.category-list li span:first-of-type {
    flex: 1;
}

.category-list .count {
    font-size: 0.75rem;
    padding: 2px 8px;
    background: var(--bg-tertiary);
    border-radius: 100px;
    color: var(--text-muted);
}

/* Topic List */
.topic-list {
    list-style: none;
}

.topic-list li {
    display: flex;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

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

.topic-rank {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
}

.topic-rank.hot {
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    color: white;
}

.topic-list a {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.5;
    transition: color var(--transition-fast);
}

.topic-list a:hover {
    color: var(--accent-primary);
}

/* Contributor List */
.contributor-list {
    list-style: none;
}

.contributor-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
}

.contributor-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: white;
    flex-shrink: 0;
}

.contributor-info {
    display: flex;
    flex-direction: column;
}

.contributor-name {
    font-weight: 500;
    font-size: 0.9rem;
}

.contributor-stats {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.stat-item {
    text-align: center;
    padding: 12px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
}

.stat-item .stat-value {
    display: block;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-item .stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Resource List */
.resource-list {
    list-style: none;
}

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

.resource-list a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.resource-list a:hover {
    background: var(--bg-primary);
}

.resource-icon {
    font-size: 1.5rem;
}

.resource-info {
    display: flex;
    flex-direction: column;
}

.resource-title {
    font-weight: 500;
    font-size: 0.9rem;
}

.resource-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Ad Card */
.ad-card {
    position: relative;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
    border-color: rgba(99, 102, 241, 0.3);
}

.ad-label {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 2px 8px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    font-size: 0.65rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

.ad-content h4 {
    font-size: 1rem;
    margin-bottom: 8px;
}

.ad-content p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

/* Content Area */
.community-content {
    min-width: 0;
}

.content-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.tab-nav {
    display: flex;
    gap: 8px;
}

.tab-btn {
    padding: 8px 16px;
    background: none;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.tab-btn:hover {
    color: var(--text-primary);
}

.tab-btn.active {
    background: var(--bg-card);
    border-color: var(--border-color);
    color: var(--text-primary);
}

/* Post List */
.post-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.post-card {
    display: flex;
    gap: 16px;
    padding: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    position: relative;
    transition: all var(--transition-fast);
}

.post-card:hover {
    border-color: var(--border-hover);
}

.post-card.pinned {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), transparent);
    border-color: rgba(99, 102, 241, 0.2);
}

.post-pin-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 4px 10px;
    background: var(--accent-primary);
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 600;
}

/* Vote */
.post-vote {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
}

.vote-btn {
    width: 36px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    transition: all var(--transition-fast);
}

.vote-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.vote-btn.upvote.active {
    color: var(--accent-primary);
}

.vote-btn.downvote.active {
    color: var(--error);
}

.vote-btn svg {
    width: 18px;
    height: 18px;
}

.vote-count {
    font-weight: 600;
    color: var(--text-primary);
}

/* Post Main */
.post-main {
    flex: 1;
    min-width: 0;
}

.post-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
    font-size: 0.8rem;
}

.post-category {
    padding: 3px 10px;
    background: var(--accent-primary);
    border-radius: 4px;
    font-weight: 500;
}

.post-category.category-share {
    background: #10b981;
}

.post-category.category-qa {
    background: #f59e0b;
}

.post-category.category-exp {
    background: #8b5cf6;
}

.post-category.category-discuss {
    background: #06b6d4;
}

.post-author {
    color: var(--text-secondary);
}

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

.author-badge {
    padding: 2px 8px;
    background: rgba(99, 102, 241, 0.1);
    color: var(--accent-primary);
    border-radius: 4px;
    font-size: 0.7rem;
}

.post-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

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

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

.badge-hot {
    font-size: 0.75rem;
    font-weight: 500;
    color: #ef4444;
}

.badge-elite {
    padding: 2px 8px;
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 600;
}

.post-excerpt {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.post-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 12px;
}

.post-tag {
    padding: 4px 10px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    font-size: 0.75rem;
    color: var(--text-muted);
    transition: all var(--transition-fast);
}

.post-tag:hover {
    color: var(--accent-primary);
}

.post-stats {
    display: flex;
    gap: 20px;
    color: var(--text-muted);
    font-size: 0.8rem;
}

.post-stats span {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    transition: color var(--transition-fast);
}

.post-stats span:hover {
    color: var(--text-secondary);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 40px;
}

.page-btn {
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.page-btn:hover:not(.disabled):not(.active) {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

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

.page-btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

/* Modal */
.modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.modal.active {
    display: flex;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--text-muted);
    cursor: pointer;
    transition: color var(--transition-fast);
}

.modal-close:hover {
    color: var(--text-primary);
}

/* Post Form */
.post-form {
    padding: 24px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

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

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

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding-top: 12px;
}

/* Responsive */
@media (max-width: 1200px) {
    .community-layout {
        grid-template-columns: 240px 1fr;
    }
    
    .community-sidebar-right {
        display: none;
    }
}

@media (max-width: 900px) {
    .community-layout {
        grid-template-columns: 1fr;
    }
    
    .community-sidebar {
        display: none;
    }
    
    .content-header {
        flex-direction: column;
        gap: 16px;
        align-items: stretch;
    }
    
    .tab-nav {
        justify-content: center;
    }
}

@media (max-width: 600px) {
    .community-hero h1 {
        font-size: 1.75rem;
    }
    
    .post-card {
        flex-direction: column;
    }
    
    .post-vote {
        flex-direction: row;
        order: 1;
    }
    
    .post-main {
        order: 0;
    }
    
    .tab-nav {
        flex-wrap: wrap;
    }
}

/* ========================================
   Post Detail Modal
   ======================================== */

.modal-large {
    max-width: 800px;
}

.post-detail {
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
}

.post-detail-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.post-detail-meta .post-views {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.post-detail-content {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-primary);
    margin-bottom: 20px;
}

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

.post-detail-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.post-detail-actions {
    display: flex;
    gap: 16px;
}

.btn-like {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.btn-like.active {
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.btn-like svg {
    transition: transform var(--transition-fast);
}

.btn-like.active svg {
    fill: var(--accent-primary);
}

.btn-edit,
.btn-delete {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.btn-edit:hover {
    border-color: #3b82f6;
    color: #3b82f6;
    background: rgba(59, 130, 246, 0.1);
}

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

.btn-delete:hover {
    border-color: #ef4444;
    color: #ef4444;
    background: rgba(239, 68, 68, 0.1);
}

.post-detail-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

/* ========================================
   Comments Section
   ======================================== */

.comments-section {
    padding: 24px;
}

.comments-section h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.comment-form {
    margin-bottom: 24px;
}

.comment-form textarea {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    resize: vertical;
    min-height: 80px;
    transition: border-color var(--transition-fast);
}

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

.comment-form textarea::placeholder {
    color: var(--text-muted);
}

.comment-form .btn-primary {
    margin-top: 12px;
}

.comment-login-tip {
    padding: 20px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    text-align: center;
    margin-bottom: 24px;
}

.comment-login-tip p {
    color: var(--text-secondary);
    margin: 0;
}

.comment-login-tip a {
    color: var(--accent-primary);
    font-weight: 500;
}

.comment-login-tip a:hover {
    text-decoration: underline;
}

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

.comment-item {
    display: flex;
    gap: 12px;
    padding: 16px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
}

.comment-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea, #764ba2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: white;
    flex-shrink: 0;
}

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

.comment-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

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

.comment-time {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.comment-content {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-secondary);
}

/* Empty & Loading States */
.loading-placeholder,
.empty-placeholder,
.error-placeholder {
    padding: 40px;
    text-align: center;
    color: var(--text-muted);
}

.error-placeholder {
    color: var(--error);
}

/* Load More */
.load-more {
    display: flex;
    justify-content: center;
    padding: 24px 0;
}

/* User Card */
.user-card {
    text-align: center;
}

.user-card .user-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.user-card .user-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea, #764ba2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 600;
    color: white;
}

.user-card .user-name {
    font-size: 1.1rem;
    font-weight: 600;
}

.user-card .user-stats {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Auth Form */
.auth-form {
    padding: 24px;
}

.form-error {
    color: var(--error);
    font-size: 0.875rem;
    margin-bottom: 16px;
    min-height: 20px;
}

.form-footer {
    text-align: center;
    margin-top: 16px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.form-footer a {
    color: var(--accent-primary);
    font-weight: 500;
}

.form-footer a:hover {
    text-decoration: underline;
}

.btn-full {
    width: 100%;
}

.btn-small {
    padding: 8px 16px;
    font-size: 0.875rem;
}

.modal-small {
    max-width: 400px;
}

/* Post main clickable */
.post-main {
    cursor: pointer;
}

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

/* ========================================
   Sub Navigation (子标签导航)
   ======================================== */

.sub-nav {
    background: #fff;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 64px;
    z-index: 90;
}

.sub-nav-tabs {
    display: flex;
    gap: 4px;
    padding: 12px 0;
}

.sub-nav-tab {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: transparent;
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.sub-nav-tab:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.sub-nav-tab.active {
    background: var(--bg-card);
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.sub-nav-tab svg {
    flex-shrink: 0;
}

/* Section Content Toggle */
.section-content {
    display: none;
}

.section-content.active {
    display: block;
}

/* ========================================
   AI Interview Section
   ======================================== */

.ai-interview-hero {
    padding: 100px 0 60px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.08), rgba(139, 92, 246, 0.03));
    text-align: center;
    position: relative;
    overflow: hidden;
}

.ai-interview-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15), transparent 70%);
    pointer-events: none;
}

.ai-hero-content {
    position: relative;
    z-index: 1;
}

.ai-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 100px;
    font-size: 0.875rem;
    color: var(--accent-primary);
    margin-bottom: 24px;
}

.ai-badge .badge-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-primary);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.ai-interview-hero h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--text-primary), var(--accent-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.ai-interview-hero p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* Interview Main */
.ai-interview-main {
    padding: 60px 0 80px;
}

.interview-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 80px;
}

.interview-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    transition: all var(--transition-normal);
}

.interview-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent-primary);
    box-shadow: 0 12px 40px rgba(99, 102, 241, 0.15);
}

.interview-card.coming-soon {
    opacity: 0.6;
}

.interview-card.coming-soon:hover {
    transform: none;
    border-color: var(--border-color);
    box-shadow: none;
}

.interview-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
    border-radius: 16px;
}

.interview-icon svg {
    width: 32px;
    height: 32px;
    color: var(--accent-primary);
}

.interview-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.interview-card > p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
}

.interview-tags {
    display: flex;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.interview-tags span {
    padding: 4px 12px;
    background: var(--bg-tertiary);
    border-radius: 100px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.interview-card .btn-primary,
.interview-card .btn-outline {
    width: 100%;
}

/* AI Features */
.ai-features {
    padding: 60px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
}

.ai-features h2 {
    font-size: 1.75rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 48px;
}

.features-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

.feature-item {
    text-align: center;
}

.feature-num {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent-primary);
    opacity: 0.3;
    margin-bottom: 16px;
}

.feature-item h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.feature-item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Responsive for AI Interview */
@media (max-width: 1024px) {
    .interview-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .features-row {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .sub-nav-tabs {
        justify-content: center;
    }
    
    .sub-nav-tab {
        padding: 10px 16px;
        font-size: 0.9rem;
    }
    
    .ai-interview-hero h1 {
        font-size: 2rem;
    }
    
    .ai-interview-hero p {
        font-size: 1rem;
    }
    
    .interview-grid {
        grid-template-columns: 1fr;
    }
    
    .features-row {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .ai-features {
        padding: 40px 24px;
    }
}

@media (max-width: 480px) {
    .sub-nav-tab span:not(.sub-nav-tab svg) {
        display: none;
    }
    
    .sub-nav-tab {
        padding: 12px;
    }
}

/* ════════════════════════════════════════
   AI + 财务经营 新闻板块 — 完整样式
   ════════════════════════════════════════ */

/* 板块容器 */
.ai-finance-news-section {
    padding: 48px 0 56px;
    background: linear-gradient(180deg, #f0f4ff 0%, #f8fafc 100%);
    border-top: 1px solid rgba(99, 102, 241, 0.12);
}

/* 头部 */
.afn-header { margin-bottom: 32px; }
.afn-title-row {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}
.afn-icon { font-size: 30px; }
.afn-title {
    font-size: 24px;
    font-weight: 800;
    margin: 0;
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.afn-subtitle {
    font-size: 13px;
    color: #9ca3af;
    font-weight: 400;
}

/* 时间线容器 */
.afn-timeline { display: flex; flex-direction: column; gap: 8px; }
.afn-empty { text-align: center; padding: 40px 20px; color: #9ca3af; font-size: 15px; }

/* ── 日期组 ── */
.afn-day-group { margin-bottom: 8px; }
.afn-day-label {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}
.afn-day-text {
    font-size: 16px;
    font-weight: 700;
    color: #1f2937;
}
.afn-today-badge {
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    padding: 2px 10px;
    border-radius: 10px;
    letter-spacing: 0.5px;
}
.afn-day-count {
    font-size: 13px;
    color: #9ca3af;
}

/* ── 今日卡片网格 ── */
.afn-cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

/* 卡片 */
.afn-card {
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.35s ease, box-shadow 0.35s ease;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    display: flex;
    flex-direction: column;
    min-width: 0;
    border: 1px solid rgba(0, 0, 0, 0.04);
}
.afn-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px rgba(99, 102, 241, 0.15);
}

/* 封面 */
.afn-card-cover {
    position: relative;
    height: 180px;
    overflow: hidden;
    flex-shrink: 0;
}
.afn-cover-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
}
.afn-card:hover .afn-cover-img {
    transform: scale(1.06);
}
.afn-cover-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(0deg, rgba(0,0,0,0.45) 0%, rgba(0,0,0,0) 60%);
    pointer-events: none;
}
.afn-cover-gradient {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.afn-cover-emoji {
    font-size: 3rem;
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.25));
}
.afn-cover-source {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(255, 255, 255, 0.92);
    color: #333;
    font-size: 11px;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 20px;
    backdrop-filter: blur(4px);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    z-index: 2;
    backdrop-filter: blur(4px);
}

/* 卡片内容 */
.afn-card-body {
    padding: 14px 16px 8px;
    flex: 1;
    min-height: 0;
    overflow: hidden;
}
.afn-card-title {
    font-size: 15px;
    font-weight: 700;
    line-height: 1.45;
    margin: 0 0 6px;
    color: #1f2937;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}
.afn-card-summary {
    font-size: 13px;
    color: #6b7280;
    line-height: 1.55;
    margin: 0 0 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.afn-card-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.afn-tag {
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 6px;
    background: #f0f0ff;
    color: #6366f1;
    font-weight: 500;
}

/* 卡片底栏 */
.afn-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 16px;
    border-top: 1px solid #f0f0f0;
    font-size: 13px;
}
.afn-read-more { color: #6366f1; font-weight: 600; }
.afn-word-count { color: #9ca3af; font-size: 12px; }

/* ── 历史折叠 ── */
.afn-day-group--history { margin-bottom: 4px; }
.afn-hist-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: #fff;
    border-radius: 12px;
    cursor: pointer;
    transition: background 0.2s;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
}
.afn-hist-header:hover { background: #f8f9ff; }
.afn-hist-arrow {
    font-size: 16px;
    font-weight: 700;
    color: #6366f1;
    transition: transform 0.25s;
    display: inline-block;
    width: 16px;
    text-align: center;
}
.afn-hist-arrow.open { transform: rotate(90deg); }
.afn-hist-date { font-size: 14px; font-weight: 600; color: #374151; }
.afn-hist-count { font-size: 12px; color: #9ca3af; background: #f3f4f6; padding: 2px 8px; border-radius: 8px; }
.afn-hist-sources { font-size: 12px; color: #9ca3af; margin-left: auto; }

/* 折叠列表 */
.afn-hist-list {
    display: none;
    flex-direction: column;
    gap: 0;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    overflow: hidden;
    background: #fff;
    margin: 6px 0 4px 24px;
}
.afn-hist-list.open { display: flex; }

.afn-hist-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    cursor: pointer;
    transition: background 0.15s;
    border-bottom: 1px solid #f3f4f6;
}
.afn-hist-item:last-child { border-bottom: none; }
.afn-hist-item:hover { background: #f8f9ff; }
.afn-hist-emoji { font-size: 16px; flex-shrink: 0; }
.afn-hist-title {
    flex: 1;
    font-size: 13px;
    color: #374151;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.afn-hist-source {
    font-size: 11px;
    color: #9ca3af;
    flex-shrink: 0;
    background: #f3f4f6;
    padding: 2px 8px;
    border-radius: 6px;
}
.afn-hist-link {
    color: #6366f1;
    font-size: 14px;
    text-decoration: none;
    font-weight: 700;
    flex-shrink: 0;
}
.afn-hist-link:hover { color: #4f46e5; }

/* ── 弹窗覆盖 ── */
.afn-detail-modal .modal-content {
    max-width: 760px;
    padding: 0;
    border-radius: 16px;
    overflow: hidden;
    position: relative;
}
.afn-detail-modal .modal-close {
    position: absolute;
    top: 14px;
    right: 14px;
    z-index: 10;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.45);
    color: #fff;
    border: none;
    font-size: 22px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(6px);
    transition: background 0.2s;
}
.afn-detail-modal .modal-close:hover { background: rgba(0, 0, 0, 0.7); }

/* 弹窗 Banner */
.afn-detail-banner {
    width: 100%;
    height: 200px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.afn-detail-banner-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    inset: 0;
}
.afn-detail-banner-icon { font-size: 4rem; z-index: 1; }
.afn-detail-banner-source {
    position: absolute;
    bottom: 12px;
    left: 16px;
    background: rgba(0, 0, 0, 0.5);
    color: #fff;
    font-size: 12px;
    padding: 4px 12px;
    border-radius: 10px;
    backdrop-filter: blur(4px);
}

/* 弹窗正文 */
.afn-detail-body { padding: 24px 28px 28px; }
.afn-detail-title {
    font-size: 20px;
    font-weight: 800;
    line-height: 1.5;
    margin: 0 0 16px;
    color: #1f2937;
}
.afn-detail-meta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid #f0f0f0;
}
.afn-meta-item { font-size: 13px; color: #6b7280; }

.afn-detail-content {
    font-size: 15px;
    line-height: 1.8;
    color: #374151;
    margin-bottom: 20px;
}
.afn-detail-content p { margin: 0 0 12px; }
.afn-content-preview { color: #6b7280; font-style: italic; }

.afn-short-notice {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: #fffbeb;
    border: 1px solid #fde68a;
    border-radius: 12px;
    margin-bottom: 16px;
}
.afn-notice-icon { font-size: 24px; }
.afn-notice-text { font-size: 14px; color: #92400e; }

.afn-detail-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}
.afn-detail-tag {
    font-size: 13px;
    color: #6366f1;
    background: #f0f0ff;
    padding: 4px 12px;
    border-radius: 8px;
}

.afn-detail-actions { margin-bottom: 16px; }
.afn-actions-prominent { text-align: center; margin: 20px 0; }

.afn-btn-original {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    background: #6366f1;
    color: #fff;
    border-radius: 10px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: background 0.2s, transform 0.15s;
}
.afn-btn-original:hover { background: #4f46e5; transform: translateY(-1px); }
.afn-btn-original-large {
    padding: 14px 28px;
    font-size: 16px;
    border-radius: 12px;
}

.afn-detail-source-info {
    font-size: 12px;
    color: #9ca3af;
    border-top: 1px solid #f0f0f0;
    padding-top: 14px;
    margin-top: 8px;
}
.afn-detail-source-info a { color: #6366f1; text-decoration: none; }
.afn-detail-source-info a:hover { text-decoration: underline; }

/* ── 响应式 ── */
@media (max-width: 900px) {
    .afn-cards-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
    .ai-finance-news-section { padding: 24px 0 32px; }
    .afn-title { font-size: 18px; }
    .afn-cards-grid { grid-template-columns: 1fr; }
    .afn-card-cover { height: 160px; }
    .afn-detail-body { padding: 16px 18px 20px; }
    .afn-detail-title { font-size: 17px; }
}