/* ===== 文章页独享样式（含导航与相关卡片优化） ===== */
/* 包含：文章容器、头部、正文排版、前后导航、相关文章、修复样式 */

/* --- 文章容器（控制最大宽度，保持阅读舒适）--- */
.article-container {
    max-width: 920px;
    margin: 0 auto;
}

/* --- 文章头部（标题、元信息、特色图）--- */
.article-header {
    margin-bottom: 40px;
}

.article-header h1 {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 15px;
    color: var(--text-dark);
    /* 标题换行修复 */
    word-break: break-word;
    overflow-wrap: break-word;
    max-width: 100%;
}

.article-meta {
    display: flex;
    gap: 25px;
    margin-bottom: 30px;
    color: var(--text-soft);
    font-size: 0.95rem;
    flex-wrap: wrap;
}

.article-meta i {
    color: var(--primary-warm);
    margin-right: 6px;
}

.featured-image {
    width: 100%;
    border-radius: 28px;
    overflow: hidden;
    margin-bottom: 30px;
    border: 2px solid var(--border-soft);
}

.featured-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* --- 文章正文排版 --- */
.article-body {
    font-size: 1.1rem;
    color: var(--text-dark);
}

.article-body h2 {
    font-size: 2.2rem;
    font-weight: 600;
    margin: 2.2rem 0 1.2rem 0;
    color: var(--text-dark);
}

.article-body h3 {
    font-size: 1.8rem;
    font-weight: 600;
    margin: 2rem 0 1rem 0;
    color: var(--text-dark);
}

.article-body h4 {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 1.8rem 0 0.8rem 0;
    color: var(--text-dark);
}

.article-body h5 {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 1.5rem 0 0.6rem 0;
    color: var(--text-dark);
}

.article-body p {
    margin-bottom: 1.5rem;
    line-height: 1.7;
    color: var(--text-soft);
}

.article-body img {
    max-width: 100%;
    height: auto;
    border-radius: 20px;
    margin: 2rem 0;
    border: 1px solid var(--border-soft);
    box-shadow: var(--shadow-light);
}

.article-body img + em {
    display: block;
    text-align: center;
    margin-top: -1rem;
    margin-bottom: 2rem;
    font-size: 0.9rem;
    color: var(--text-soft);
}

/* --- 特殊图片保护（针对内联样式 display:block;margin:auto 的图片）--- */
.article-body img[style*="display:block"][style*="margin:auto"] {
    max-width: 100% !important;
    height: auto !important;
    min-height: 100px;                     /* 图片加载失败时保留高度 */
    background-color: #f5e8d9;              /* 占位背景色，与主题融合 */
    border-radius: 20px;
    border: 1px solid rgba(249,115,22,0.15);
    box-shadow: 0 8px 20px rgba(249,115,22,0.08);
    object-fit: contain;                    /* 保持比例 */
    /* 保留内联的 margin:auto 实现水平居中，添加上下边距防止紧贴文字 */
    margin-top: 1.5rem !important;
    margin-bottom: 1.5rem !important;
}

/* --- 前后文章导航 --- */
.post-navigation {
    display: flex;
    justify-content: space-between;
    gap: 30px;
    margin: 60px 0 50px;
    padding: 25px 0;
    border-top: 1px solid var(--border-soft);
    border-bottom: 1px solid var(--border-soft);
}

.nav-prev,
.nav-next {
    flex: 1;
    max-width: 45%;
}

.nav-prev a,
.nav-next a {
    display: flex;
    flex-direction: column;
    background: var(--card-bg);
    padding: 20px 25px;
    border-radius: 28px;
    border: 1px solid var(--border-soft);
    transition: all 0.2s;
}

.nav-prev a:hover,
.nav-next a:hover {
    border-color: var(--primary-warm);
    background: rgba(255, 238, 220, 0.9);
    transform: translateY(-3px);
}

.nav-label {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--primary-warm);
    margin-bottom: 8px;
}

/* 导航标题：自动换行防止溢出 */
.nav-title {
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--text-dark);
    line-height: 1.4;
    word-break: break-word;
    overflow-wrap: break-word;
    max-width: 100%;
}

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

.nav-next .nav-label {
    align-self: flex-end;
}

/* --- 相关文章卡片（三列网格）--- */
.related-title {
    font-size: 2rem;
    font-weight: 600;
    margin: 50px 0 30px;
    color: var(--text-dark);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    margin-bottom: 30px;
}

.related-card {
    background: var(--card-bg);
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid var(--border-soft);
    transition: transform 0.2s;
}

.related-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-warm);
}

.related-thumb {
    width: 100%;
    height: 160px;
    overflow: hidden;
}

.related-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.related-card:hover .related-thumb img {
    transform: scale(1.05);
}

/* 相关卡片内容区域：左右内边距调整为相等且更舒适（20px） */
.related-content {
    padding: 18px 20px 22px;
}

/* 相关文章标题：自动换行 + 继承颜色 */
.related-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-dark);
    word-break: break-word;
    overflow-wrap: break-word;
}

.related-content h4 a {
    color: inherit;
}

.related-content h4 a:hover {
    color: var(--primary-warm);
}

.related-date {
    font-size: 0.85rem;
    color: var(--text-soft);
}

/* --- 强制文章区域可见（防止淡入效果异常）--- */
.article-section {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

/* --- 响应式调整 --- */
@media (max-width: 992px) {
    .related-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .article-header h1 {
        font-size: 2.2rem;
    }

    .post-navigation {
        flex-direction: column;
    }

    .nav-prev,
    .nav-next {
        max-width: 100%;
    }

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