/* ---------------------------------------------------------------------------
   博客前台样式（2026-09-30）
   配色一律用主站 header.php 里定义的 CSS 变量（--primary / --secondary / ...），
   不在这里重复写死颜色——主站改配色，博客自动跟着变。
   只写「博客独有」的版面：列表卡片、正文排版、分页、归档。
   --------------------------------------------------------------------------- */

/* ---------- 列表页头部 ---------- */
.blog-hero {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.08) 0%, rgba(118, 75, 162, 0.08) 100%);
    padding: 70px 0 60px;
    text-align: center;
}

.blog-hero .section-title {
    font-size: 38px;
    margin-bottom: 14px;
}

.blog-hero .section-desc {
    margin-bottom: 0;
}

/* ---------- 文章卡片列表 ---------- */
.blog-list {
    padding: 60px 0 90px;
}

.post-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 26px;
}

.post-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 26px 24px 22px;
    display: flex;
    flex-direction: column;
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}

.post-card:hover {
    transform: translateY(-4px);
    border-color: rgba(102, 126, 234, .45);
    box-shadow: var(--shadow-lg);
}

.post-card-date {
    font-size: 13px;
    color: var(--text-light);
    font-weight: 600;
    letter-spacing: .3px;
    margin-bottom: 10px;
}

.post-card-title {
    font-size: 19px;
    font-weight: 700;
    line-height: 1.35;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.post-card-title a {
    color: inherit;
}

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

.post-card-summary {
    font-size: 14.5px;
    color: var(--text-gray);
    line-height: 1.7;
    margin-bottom: 16px;
    flex: 1;
}

.post-card-more {
    font-size: 14px;
    font-weight: 700;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.post-card-more::after {
    content: '\2192';
    transition: transform .2s ease;
}

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

/* ---------- 空状态 ---------- */
.blog-empty {
    text-align: center;
    padding: 70px 20px;
    color: var(--text-gray);
}

.blog-empty .icon {
    font-size: 44px;
    margin-bottom: 14px;
}

/* ---------- 分页 ---------- */
.blog-pagination {
    display: flex;
    gap: 8px;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    margin-top: 44px;
}

.blog-pagination a,
.blog-pagination span {
    min-width: 42px;
    height: 42px;
    padding: 0 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: #fff;
    color: var(--text-gray);
    font-size: 14px;
    font-weight: 600;
}

.blog-pagination a:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.blog-pagination .current {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-color: transparent;
    color: #fff;
}

/* ---------- 文章正文 ---------- */
.blog-article {
    padding: 50px 0 90px;
}

.article-shell {
    max-width: 1060px;
    margin: 0 auto;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 56px 72px;
    box-shadow: var(--shadow);
}

/* 卡片放宽后（2026-09-30，820 → 1060），内层内容统一约束到一条居中列：
   正文若跟着拉满 1060px，一行会到 100+ 字符，读起来很累。
   标题 / 元信息 / 正文 / 标签 / CTA 左边缘全部对齐在同一条 760px 列上，
   卡片多出来的宽度变成两侧对称留白，观感变宽、行长不变。
   768px 以下可用宽度不足 760px，max-width 自然失效，移动端不受影响。 */
.article-shell > * {
    max-width: 760px;
    margin-left: auto;
    margin-right: auto;
}

/* article-back 是 inline-flex（收缩到内容宽），margin auto 会把它推去正中；
   它应该贴内容列的左边缘，与标题对齐。 */
.article-shell > .article-back {
    margin-left: 0;
}

.article-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 22px;
}

.article-back:hover {
    gap: 12px;
}

.article-title {
    font-size: 36px;
    font-weight: 800;
    line-height: 1.25;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.article-meta {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    font-size: 13.5px;
    color: var(--text-light);
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 30px;
}

.article-meta i {
    margin-right: 6px;
}

/* Markdown 渲染出来的正文排版 */
.article-body {
    font-size: 16.5px;
    line-height: 1.85;
    color: #374151;
}

.article-body h2 {
    font-size: 26px;
    font-weight: 800;
    color: var(--text-dark);
    margin: 40px 0 16px;
    line-height: 1.3;
}

.article-body h3 {
    font-size: 21px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 32px 0 12px;
}

.article-body h4 {
    font-size: 17.5px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 26px 0 10px;
}

.article-body p {
    margin-bottom: 18px;
}

.article-body ul,
.article-body ol {
    margin: 0 0 20px 24px;
}

.article-body li {
    margin-bottom: 8px;
}

.article-body a {
    color: var(--primary);
    text-decoration: underline;
}

.article-body strong {
    color: var(--text-dark);
}

.article-body blockquote {
    border-left: 4px solid var(--primary);
    background: rgba(102, 126, 234, .06);
    padding: 14px 20px;
    margin: 0 0 20px;
    border-radius: 0 10px 10px 0;
    color: var(--text-gray);
}

.article-body code {
    background: #F3F4F6;
    padding: 2px 6px;
    border-radius: 5px;
    font-size: 14px;
}

.article-body pre {
    background: #1F2937;
    color: #E5E7EB;
    padding: 18px 20px;
    border-radius: 12px;
    overflow-x: auto;
    margin: 0 0 20px;
}

.article-body pre code {
    background: none;
    color: inherit;
    padding: 0;
}

.article-body img {
    border-radius: 12px;
    margin: 8px 0 20px;
    display: block;
}

.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 0 0 22px;
    font-size: 15px;
}

.article-body th,
.article-body td {
    border: 1px solid var(--border);
    padding: 10px 14px;
    text-align: left;
}

.article-body th {
    background: var(--bg-light);
    font-weight: 700;
    color: var(--text-dark);
}

.article-body hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 36px 0;
}

/* 标签 */
.article-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 34px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

.article-tag {
    font-size: 12.5px;
    font-weight: 600;
    color: var(--primary);
    background: rgba(102, 126, 234, .09);
    padding: 5px 12px;
    border-radius: 20px;
}

/* 正文末尾的行动号召 */
.article-cta {
    margin-top: 40px;
    padding: 30px 32px;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(102, 126, 234, .1) 0%, rgba(118, 75, 162, .1) 100%);
    border: 1px solid rgba(102, 126, 234, .2);
}

.article-cta h3 {
    font-size: 19px;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.article-cta p {
    font-size: 14.5px;
    color: var(--text-gray);
    margin-bottom: 18px;
}

.article-cta .btn {
    padding: 12px 26px;
    font-size: 15px;
}

/* ---------- 归档 ---------- */
.archive-group {
    margin-bottom: 34px;
}

.archive-month {
    font-size: 17px;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.archive-month::before {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
}

.archive-list {
    list-style: none;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 14px;
    overflow: hidden;
}

.archive-list li {
    border-bottom: 1px solid var(--border);
}

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

.archive-list a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    padding: 14px 20px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-dark);
}

.archive-list a:hover {
    background: var(--bg-light);
    color: var(--primary);
}

.archive-list .d {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-light);
    white-space: nowrap;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
    .post-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .blog-hero {
        padding: 46px 0 38px;
    }

    .blog-hero .section-title {
        font-size: 27px;
    }

    .blog-list {
        padding: 36px 0 60px;
    }

    .post-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .blog-article {
        padding: 26px 0 60px;
    }

    .article-shell {
        padding: 26px 20px;
        border-radius: 14px;
    }

    .article-title {
        font-size: 26px;
    }

    .article-body {
        font-size: 16px;
    }

    .article-body h2 {
        font-size: 22px;
    }
}