/* ========================================
   Article Page Styles
   Peach Lover - 文章详情页
   ======================================== */

/* Article Main Layout */
.article-main {
    padding-top: 68px; /* Header height */
    min-height: 100vh;
}

.article {
    position: relative;
}

/* Article Header */
.article-header {
    background: linear-gradient(135deg, 
        var(--color-gradient-start) 0%, 
        var(--color-gradient-mid) 50%, 
        var(--color-gradient-end) 100%);
    padding: var(--spacing-xxl) 0 var(--spacing-xl);
    text-align: center;
    border-bottom: 1px solid rgba(255, 183, 197, 0.3);
}

.article-meta-top {
    margin-bottom: var(--spacing-md);
}

.article-category {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: white;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-sm);
}

.article-meta {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
    color: var(--color-text-light);
    font-size: 0.875rem;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.article-title {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

.article-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-light);
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
    line-height: 1.6;
}

.article-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.btn-action {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    background: white;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-action:hover {
    border-color: var(--color-primary);
    color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-action span {
    color: var(--color-text-light);
}

/* Table of Contents */
.article-toc {
    position: fixed;
    top: 100px;
    left: var(--spacing-md);
    width: 220px;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
    z-index: 100;
    display: none;
}

@media (min-width: 1200px) {
    .article-toc {
        display: block;
    }
}

.toc-inner {
    background: white;
    border-radius: var(--radius-sm);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
}

.toc-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-primary);
}

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

.toc-nav li {
    margin-bottom: 0.5rem;
}

.toc-nav a {
    display: block;
    padding: 0.5rem 0.75rem;
    color: var(--color-text-light);
    font-size: 0.875rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.toc-nav a:hover,
.toc-nav a.active {
    color: var(--color-primary-dark);
    background: rgba(255, 183, 197, 0.15);
}

/* Article Content Wrapper */
.article-content-wrapper {
    padding: var(--spacing-xxl) 0;
}

.article-body {
    max-width: 800px;
    margin: 0 auto;
}

/* Article Sections */
.article-section {
    margin-bottom: var(--spacing-xl);
    scroll-margin-top: 100px;
}

.article-section h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-primary);
    display: inline-block;
}

.article-section h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
    margin: var(--spacing-lg) 0 var(--spacing-sm);
}

.article-body p {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

.article-body strong {
    font-weight: 700;
    color: var(--color-primary-dark);
}

.article-body ul,
.article-body ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

.article-body li {
    margin-bottom: 0.5rem;
    line-height: 1.7;
    color: var(--color-text);
}

/* Blockquote */
.article-body blockquote {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-bg-alt);
    border-left: 4px solid var(--color-primary);
    border-radius: var(--radius-sm);
    font-style: italic;
    color: var(--color-text-light);
}

.article-body blockquote p {
    margin: 0;
}

/* Code Blocks */
.article-body pre {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-md);
    background: linear-gradient(135deg, #FFF5F7, #FFE4E9);
    border-radius: var(--radius-sm);
    overflow-x: auto;
    border: 1px solid var(--color-border);
}

.article-body code {
    font-family: 'Fira Code', 'Consolas', 'Monaco', monospace;
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--color-text);
}

.article-body pre code {
    display: block;
    padding: 0;
    background: none;
}

.article-body :not(pre) > code {
    padding: 0.25rem 0.5rem;
    background: var(--color-bg-alt);
    border-radius: var(--radius-sm);
    color: var(--color-primary-dark);
}

/* Color Palette */
.color-palette {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.color-item {
    padding: var(--spacing-lg);
    border-radius: var(--radius-sm);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base);
}

.color-item:hover {
    transform: translateY(-4px);
}

.color-item span {
    display: block;
    color: var(--color-text);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.color-item code {
    display: block;
    font-size: 0.75rem;
    color: var(--color-text-light);
}

/* Article Footer */
.article-footer {
    margin-top: var(--spacing-xxl);
    padding-top: var(--spacing-lg);
    border-top: 2px solid var(--color-border);
}

.article-tags {
    margin-bottom: var(--spacing-lg);
}

.tag-label,
.share-label {
    font-weight: 600;
    color: var(--color-text);
    margin-right: var(--spacing-sm);
}

.article-tags .tag {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--color-bg-alt);
    color: var(--color-text-light);
    font-size: 0.875rem;
    border-radius: var(--radius-full);
    margin-right: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
    transition: all var(--transition-fast);
    border: 1px solid var(--color-border);
}

.article-tags .tag:hover {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.article-share {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.btn-share-item {
    padding: 0.5rem 1.25rem;
    background: white;
    border: 2px solid var(--color-primary);
    color: var(--color-primary-dark);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-share-item:hover {
    background: var(--color-primary);
    color: white;
}

/* Post Navigation */
.post-navigation {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.post-nav-item {
    display: block;
    padding: var(--spacing-md);
    background: var(--color-bg-alt);
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.post-nav-item:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.post-nav-item .nav-label {
    display: block;
    font-size: 0.8125rem;
    color: var(--color-text-light);
    margin-bottom: 0.25rem;
}

.post-nav-item .nav-title {
    display: block;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
}

.post-nav-item.prev {
    text-align: left;
}

.post-nav-item.next {
    text-align: right;
}

/* Article Actions Bottom */
.article-actions-bottom {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    flex-wrap: wrap;
}

/* Responsive */
@media (max-width: 768px) {
    .article-title {
        font-size: 1.75rem;
    }
    
    .article-subtitle {
        font-size: 1rem;
    }
    
    .article-meta {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .article-actions {
        flex-wrap: wrap;
    }
    
    .article-body {
        padding: 0 var(--spacing-md);
    }
    
    .post-navigation {
        grid-template-columns: 1fr;
    }
    
    .post-nav-item.next {
        text-align: left;
    }
}