/* ================================================================
   技术博客 — tech_blog 专属样式
   theme 模式：主题提供 header/footer，此处仅写内容区样式
================================================================ */

:root {
    --acp-primary:       #e83f1e;
    --acp-secondary:     #34217a;
    --acp-text:          #1e293b;
    --acp-text-muted:    #64748b;
    --acp-light-bg:      #f4f6f9;
    --acp-border:        #e5e7eb;
    --acp-radius:        12px;
    --acp-radius-sm:     6px;
    --acp-shadow:        0 2px 12px rgba(0,0,0,.06);
    --acp-shadow-lg:     0 8px 32px rgba(0,0,0,.12);
    --acp-transition:    0.22s ease;
}

/* ---- 整体页面容器 ---- */
.acp-blog-page {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px 60px;
}

/* ---- 页面标题 ---- */
.acp-blog-page__header {
    padding: 48px 0 40px;
    border-bottom: 1px solid var(--acp-border);
    margin-bottom: 40px;
}
.acp-blog-page__title {
    font-size: 36px;
    font-weight: 900;
    color: var(--acp-text);
    margin: 0 0 10px;
    letter-spacing: -0.03em;
}
.acp-blog-page__subtitle {
    font-size: 16px;
    color: var(--acp-text-muted);
    margin: 0;
}

/* ---- 两栏布局 ---- */
.acp-blog-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 40px;
    align-items: start;
}

/* ---- 左侧边栏 ---- */
.acp-blog-sidebar {
    position: sticky;
    top: 88px; /* header高度 + 间距 */
    display: flex;
    flex-direction: column;
    gap: 24px;
}
.acp-blog-widget {
    background: #ffffff;
    border-radius: var(--acp-radius);
    border: 1px solid var(--acp-border);
    padding: 22px 20px;
}
.acp-blog-widget__title {
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--acp-text-muted);
    margin: 0 0 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--acp-border);
}
.acp-blog-cat-list {
    list-style: none;
    margin: 0; padding: 0;
    display: flex; flex-direction: column; gap: 2px;
}
.acp-blog-cat-list__link {
    display: block;
    padding: 8px 10px;
    border-radius: var(--acp-radius-sm);
    font-size: 14px;
    color: var(--acp-text-muted);
    text-decoration: none;
    transition: background-color var(--acp-transition), color var(--acp-transition);
}
.acp-blog-cat-list__link:hover { background: var(--acp-light-bg); color: var(--acp-secondary); }
.acp-blog-cat-list__link.is-active {
    background: rgba(52,33,122,.08);
    color: var(--acp-secondary);
    font-weight: 600;
}
.acp-blog-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
.acp-blog-tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    background: var(--acp-light-bg);
    border-radius: 20px;
    font-size: 12px;
    color: var(--acp-text-muted);
    text-decoration: none;
    transition: background var(--acp-transition), color var(--acp-transition);
}
.acp-blog-tag span { color: var(--acp-text-muted); font-size: 11px; }
.acp-blog-tag:hover {
    background: rgba(232,63,30,.1);
    color: var(--acp-primary);
}
.acp-blog-tag:hover span { color: var(--acp-primary); }

/* ---- 文章网格 ---- */
.acp-blog-grid {
    display: grid;
    gap: 24px;
}
.acp-blog-grid--cols-1 { grid-template-columns: 1fr; }
.acp-blog-grid--cols-2 { grid-template-columns: repeat(2, 1fr); }
.acp-blog-grid--cols-3 { grid-template-columns: repeat(3, 1fr); }

/* ---- 文章卡片 ---- */
.acp-blog-card {
    background: #ffffff;
    border-radius: var(--acp-radius);
    border: 1px solid var(--acp-border);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform var(--acp-transition), box-shadow var(--acp-transition);
}
.acp-blog-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--acp-shadow-lg);
}
.acp-blog-card__thumb {
    display: block;
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}
.acp-blog-card__thumb img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform 0.35s;
}
.acp-blog-card:hover .acp-blog-card__thumb img { transform: scale(1.05); }
.acp-blog-card__cat {
    position: absolute;
    bottom: 10px; left: 12px;
    background: var(--acp-primary);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: .04em;
}
.acp-blog-card__body {
    padding: 18px 20px 20px;
    display: flex; flex-direction: column; gap: 10px;
    flex: 1;
}
.acp-blog-card__meta {
    font-size: 12px; color: var(--acp-text-muted);
    display: flex; gap: 4px;
}
.acp-blog-card__title {
    font-size: 15px; font-weight: 700; margin: 0; line-height: 1.45;
}
.acp-blog-card__title a {
    color: var(--acp-text); text-decoration: none;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.acp-blog-card__title a:hover { color: var(--acp-primary); }
.acp-blog-card__excerpt {
    font-size: 13px; color: var(--acp-text-muted);
    margin: 0; line-height: 1.65;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.acp-blog-card__more {
    margin-top: auto;
    font-size: 13px; font-weight: 600; color: var(--acp-primary);
    text-decoration: none; display: flex; align-items: center; gap: 4px;
}
.acp-blog-card__more span { transition: transform var(--acp-transition); }
.acp-blog-card:hover .acp-blog-card__more span { transform: translateX(4px); }

/* ---- 淡入动画 ---- */
.acp-fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity .5s ease, transform .5s ease;
}
.acp-fade-in.is-visible { opacity: 1; transform: translateY(0); }

/* ---- 分页 ---- */
.acp-blog-pagination { margin-top: 48px; }
.acp-blog-pagination .page-numbers {
    display: flex; flex-wrap: wrap; gap: 6px;
    list-style: none; margin: 0; padding: 0;
    justify-content: center;
}
.acp-blog-pagination .page-numbers li {}
.acp-blog-pagination .page-numbers a,
.acp-blog-pagination .page-numbers span {
    display: flex; align-items: center; justify-content: center;
    width: 40px; height: 40px;
    border-radius: var(--acp-radius-sm);
    font-size: 14px; font-weight: 600;
    text-decoration: none;
    color: var(--acp-text-muted);
    background: #ffffff;
    border: 1px solid var(--acp-border);
    transition: background var(--acp-transition), color var(--acp-transition), border-color var(--acp-transition);
}
.acp-blog-pagination .page-numbers a:hover {
    background: var(--acp-secondary);
    color: #ffffff; border-color: var(--acp-secondary);
}
.acp-blog-pagination .page-numbers .current {
    background: var(--acp-primary);
    color: #ffffff; border-color: var(--acp-primary);
}
.acp-blog-pagination .page-numbers .prev,
.acp-blog-pagination .page-numbers .next { width: auto; padding: 0 16px; }

/* ---- 空状态 ---- */
.acp-blog-empty {
    padding: 80px 24px; text-align: center; color: var(--acp-text-muted);
}

/* ---- 响应式 ---- */
@media (max-width: 1024px) {
    .acp-blog-layout { grid-template-columns: 200px 1fr; gap: 28px; }
    .acp-blog-grid--cols-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .acp-blog-layout { grid-template-columns: 1fr; }
    .acp-blog-sidebar { position: static; flex-direction: row; flex-wrap: wrap; }
    .acp-blog-widget { flex: 1; min-width: 220px; }
    .acp-blog-grid--cols-2,
    .acp-blog-grid--cols-3 { grid-template-columns: 1fr; }
    .acp-blog-page { padding: 0 16px 48px; }
}