body {
    background: #f8fafc;
}

/* Breadcrumb */
.breadcrumb {
    background: var(--white);
    border-bottom: 1px solid rgba(232, 232, 232, 0.5);
}

.breadcrumb-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 24px;
}

.breadcrumb-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 14px;
    color: var(--dark-gray);
}

.breadcrumb-nav a {
    color: var(--primary-blue);
    text-decoration: none;
    padding: 6px 12px;
    border-radius: 8px;
    transition: all 0.25s ease;
    display: inline-block;
}

.breadcrumb-nav a:hover {
    color: var(--white);
    background: var(--primary-blue);
    transform: translateY(-1px);
}

.breadcrumb-separator {
    color: #d9d9d9;
    margin: 0 4px;
    font-weight: 300;
}

.breadcrumb-nav span:last-child {
    color: var(--text-dark);
    font-weight: 500;
    padding: 6px 12px;
}

/* Page Header */
.tags-page-header {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--dark-blue) 100%);
    padding: 60px 20px;
    text-align: center;
    color: var(--white);
}

.tags-page-header .container {
    max-width: 1200px;
    margin: 0 auto;
}

.tags-page-header .page-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 12px;
}

.tags-page-header .page-subtitle {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
}

/* Tags Container */
.tags-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px 60px;
}

/* Section Header */
.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.section-desc {
    font-size: 16px;
    color: var(--dark-gray);
}

/* Tags Cloud Section */
.tags-cloud-section {
    padding: 60px 0;
    background: var(--white);
    border-radius: 12px;
    margin-bottom: 40px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.tags-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    justify-content: center;
    align-items: center;
    padding: 20px;
    min-height: 200px;
}

.tag-item {
    display: inline-block;
    padding: 10px 20px;
    background: var(--light-blue);
    color: var(--primary-blue);
    border-radius: 20px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    position: relative;
    cursor: pointer;
}

.tag-item:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(24, 144, 255, 0.3);
}

.tag-item.active {
    background: var(--primary-blue);
    color: var(--white);
    border-color: var(--dark-blue);
    box-shadow: 0 4px 12px rgba(24, 144, 255, 0.3);
}

/* 标签大小（根据热度） */
.tag-size-1 {
    font-size: 14px;
    padding: 8px 16px;
}

.tag-size-2 {
    font-size: 16px;
    padding: 10px 20px;
}

.tag-size-3 {
    font-size: 18px;
    padding: 12px 24px;
    font-weight: 600;
}

/* Tag Articles Section */
.tag-articles-section {
    margin-bottom: 40px;
}

.selected-tag-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    background: var(--white);
    border-radius: 12px;
    margin-bottom: 24px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.selected-tag-info {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.selected-tag-label {
    font-size: 14px;
    color: var(--dark-gray);
}

.selected-tag-name {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-blue);
    padding: 6px 16px;
    background: var(--light-blue);
    border-radius: 20px;
}

.selected-tag-count {
    font-size: 14px;
    color: var(--dark-gray);
}

.clear-tag-btn {
    padding: 8px 20px;
    background: #f5f5f5;
    color: var(--text-dark);
    text-decoration: none;
    border-radius: 20px;
    font-size: 14px;
    transition: all 0.3s ease;
}

.clear-tag-btn:hover {
    background: var(--primary-blue);
    color: var(--white);
}

/* Articles List */
.articles-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.article-card {
    background: var(--white);
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    transition: all 0.3s;
    border: 1px solid #f0f0f0;
    opacity: 0;
    transform: translateY(20px);
}

.article-card.fade-in {
    opacity: 1;
    transform: translateY(0);
    transition: all 0.5s ease;
}

.article-card:hover {
    box-shadow: 0 8px 24px rgba(24, 144, 255, 0.12);
    transform: translateY(-2px);
    border-color: var(--light-blue);
}

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

.article-badge {
    padding: 4px 12px;
    background: var(--light-blue);
    color: var(--primary-blue);
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.article-date {
    font-size: 13px;
    color: var(--dark-gray);
}

.article-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 12px;
    line-height: 1.5;
}

.article-title a {
    color: var(--text-dark);
    text-decoration: none;
    transition: color 0.3s;
}

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

.article-excerpt {
    font-size: 15px;
    color: var(--dark-gray);
    line-height: 1.7;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid #f0f0f0;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 20px;
    font-size: 13px;
    color: var(--dark-gray);
}

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

.read-more {
    color: var(--primary-blue);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s;
}

.read-more:hover {
    color: var(--dark-blue);
}

.read-more::after {
    content: '→';
    margin-left: 4px;
    transition: transform 0.3s;
    display: inline-block;
}

.read-more:hover::after {
    transform: translateX(4px);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 80px 20px;
    background: var(--white);
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.empty-icon {
    font-size: 64px;
    margin-bottom: 20px;
}

.empty-state h3 {
    font-size: 20px;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.empty-state p {
    font-size: 15px;
    color: var(--dark-gray);
}

/* Tags Statistics Section */
.tags-stats-section {
    padding: 60px 0;
    background: linear-gradient(180deg, #f8fafc 0%, var(--white) 100%);
    border-radius: 12px;
    margin-top: 40px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
    padding: 0 20px;
}

.stat-card {
    background: var(--white);
    padding: 32px 24px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    transition: all 0.3s;
    opacity: 0;
    transform: translateY(20px);
}

.stat-card.fade-in {
    opacity: 1;
    transform: translateY(0);
    transition: all 0.5s ease;
}

.stat-card:hover {
    box-shadow: 0 8px 24px rgba(24, 144, 255, 0.12);
    transform: translateY(-4px);
}

.stat-number {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    color: var(--dark-gray);
}

/* Responsive Design */
@media (max-width: 768px) {
    .tags-page-header {
        padding: 40px 20px;
    }

    .tags-page-header .page-title {
        font-size: 28px;
    }

    .tags-page-header .page-subtitle {
        font-size: 16px;
    }

    .section-title {
        font-size: 24px;
    }

    .tags-cloud {
        gap: 12px;
        padding: 16px;
    }

    .tag-item {
        padding: 8px 16px;
    }

    .tag-size-1 {
        font-size: 13px;
        padding: 6px 14px;
    }

    .tag-size-2 {
        font-size: 14px;
        padding: 8px 16px;
    }

    .tag-size-3 {
        font-size: 16px;
        padding: 10px 20px;
    }

    .selected-tag-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .article-card {
        padding: 20px;
    }

    .article-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .article-footer {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .stat-card {
        padding: 24px 16px;
    }

    .stat-number {
        font-size: 28px;
    }
}

@media (max-width: 480px) {
    .tags-cloud {
        gap: 8px;
    }

    .tag-item {
        padding: 6px 12px;
        font-size: 13px;
    }

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