/* ===== 拼拼工坊 · AI 应用博客 —— 极简白色 / 高信噪比 / 长文阅读优化 ===== */

:root {
  --bk-ink: #09090b;
  --bk-ink-2: #3f3f46;
  --bk-muted: #71717a;
  --bk-faint: #a1a1aa;
  --bk-line: rgba(9, 9, 11, 0.08);
  --bk-line-2: rgba(9, 9, 11, 0.13);
  --bk-bg: #ffffff;
  --bk-soft: #fafafa;
  --bk-accent: #2563eb;
}

.blog-page {
  /* 避让固定顶栏（--site-topbar-offset 定义于 base.css） */
  padding-top: var(--site-topbar-offset, 72px);
  background: var(--bk-bg);
  color: var(--bk-ink-2);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
.blog-page ::selection { background: #dbeafe; color: #1e3a8a; }

/* ---------- 面包屑 ---------- */
.p-breadcrumbs {
  padding: 12px 16px;
  border-bottom: 1px solid var(--bk-line);
  font-size: 12.5px;
}
.p-breadcrumbs .nav-lists { max-width: 760px; margin: 0 auto; }
.p-breadcrumbs .nav-lists a { color: var(--bk-muted); text-decoration: none; }
.p-breadcrumbs .nav-lists a:hover { color: var(--bk-ink); }
.p-breadcrumbs .sep { margin: 0 7px; color: var(--bk-line-2); }
.p-breadcrumbs .trail { color: var(--bk-faint); }

/* ---------- 居中容器 ---------- */
.blog-wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 40px 20px 64px;
}
.blog-wrap--article { max-width: 720px; }

/* ---------- 报头 ---------- */
.blog-masthead { text-align: center; margin-bottom: 28px; }
.blog-eyebrow {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--bk-faint);
}
.blog-brand {
  display: block;
  margin: 10px 0 8px;
  font-size: 1.875rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--bk-ink);
  text-decoration: none;
}
.blog-tagline { margin: 0; font-size: 0.9375rem; color: var(--bk-muted); line-height: 1.6; }

/* ---------- 分类标签页 ---------- */
.blog-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  padding-bottom: 28px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--bk-line);
}
.blog-tabs a {
  padding: 6px 14px;
  border: 1px solid var(--bk-line);
  border-radius: 9999px;
  font-size: 13px;
  color: var(--bk-muted);
  text-decoration: none;
  transition: all 0.12s ease;
}
.blog-tabs a:hover { border-color: var(--bk-line-2); color: var(--bk-ink); }
.blog-tabs a.is-active {
  background: var(--bk-ink);
  border-color: var(--bk-ink);
  color: #fff;
  font-weight: 500;
}
.blog-tabs a .tab-count { margin-left: 5px; font-size: 11px; opacity: 0.6; font-variant-numeric: tabular-nums; }

/* ---------- 列表 ---------- */
.blog-list { display: flex; flex-direction: column; }
.blog-item {
  position: relative;
  display: block;
  padding: 24px 0;
  border-bottom: 1px solid var(--bk-line);
  text-decoration: none;
}
.blog-item:hover .blog-item__title { color: var(--bk-accent); }
.blog-item__cat {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--bk-faint);
}
.blog-item__cat img { width: 16px; height: 16px; border-radius: 4px; object-fit: cover; }
.blog-item__title {
  margin: 10px 0 7px;
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--bk-ink);
  transition: color 0.12s ease;
}
.blog-item__excerpt {
  margin: 0 0 11px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--bk-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.blog-item__meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--bk-faint);
  font-variant-numeric: tabular-nums;
}
.blog-item__pin { color: #be123c; background: #fff1f2; border: 1px solid #fecdd3; border-radius: 6px; padding: 1px 7px; font-variant-numeric: normal; }
.blog-empty { padding: 48px 0; text-align: center; color: var(--bk-faint); font-size: 14px; }

/* ---------- 分页 ---------- */
.blog-pager { display: flex; gap: 8px; align-items: center; justify-content: center; padding: 32px 0 0; }
.blog-pager a, .blog-pager span {
  font-size: 13px; text-decoration: none;
  padding: 7px 14px; border: 1px solid var(--bk-line); border-radius: 9px; color: var(--bk-muted);
}
.blog-pager a:hover { border-color: var(--bk-line-2); color: var(--bk-ink); }
.blog-pager .is-current { background: var(--bk-soft); color: var(--bk-ink); font-weight: 600; }

/* ---------- 文章 ---------- */
.blog-article__head { margin-bottom: 28px; }
.blog-article__cat {
  font-size: 11.5px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--bk-accent); text-decoration: none;
}
.blog-article__title {
  margin: 12px 0 14px;
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.025em;
  color: var(--bk-ink);
}
.blog-article__meta {
  display: flex; align-items: center; gap: 12px;
  font-size: 13px; color: var(--bk-faint);
  font-variant-numeric: tabular-nums;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--bk-line);
}
.blog-article__author { color: var(--bk-muted); font-weight: 500; }
.blog-article__cover { margin: 0 0 28px; border-radius: 14px; overflow: hidden; border: 1px solid var(--bk-line); }
.blog-article__cover img { width: 100%; display: block; }
.blog-article__edit { margin-top: 28px; font-size: 13px; }
.blog-article__edit a { color: var(--bk-accent); text-decoration: none; }

/* ---------- 文末：相关文章 + 回流 CTA ---------- */
.blog-foot { margin-top: 48px; padding-top: 28px; border-top: 1px solid var(--bk-line); }
.blog-foot__title {
  font-size: 11px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--bk-faint); margin: 0 0 14px;
}
.blog-related { display: flex; flex-direction: column; gap: 2px; }
.blog-related a { display: block; padding: 10px 12px; margin: 0 -12px; border-radius: 10px; text-decoration: none; }
.blog-related a:hover { background: var(--bk-soft); }
.blog-related .t { font-size: 14px; color: var(--bk-ink-2); line-height: 1.5; }
.blog-related a:hover .t { color: var(--bk-ink); }
.blog-related .d { font-size: 12px; color: var(--bk-faint); margin-top: 2px; }
.blog-cta {
  margin-top: 24px;
  padding: 18px 20px;
  background: linear-gradient(135deg, #eff6ff 0%, #ecfdf5 100%);
  border: 1px solid #e0e7ff;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
}
.blog-cta__text { font-size: 13.5px; color: var(--bk-ink-2); line-height: 1.6; }
.blog-cta__btn {
  flex: none;
  background: var(--bk-ink); color: #fff; text-decoration: none;
  font-size: 13.5px; font-weight: 600; padding: 10px 18px; border-radius: 10px;
}
.blog-cta__btn:hover { background: #1f1f23; }

/* ---------- 管理员条 ---------- */
.blog-adminbar { margin-bottom: 20px; padding: 8px 12px; border: 1px dashed var(--bk-line-2); border-radius: 10px; font-size: 13px; background: var(--bk-soft); }
.blog-adminbar a { color: var(--bk-accent); text-decoration: none; margin-left: 8px; }

/* ---------- 响应式 ---------- */
@media (max-width: 640px) {
  .blog-wrap { padding: 28px 16px 48px; }
  .blog-brand { font-size: 1.5rem; }
  .blog-article__title { font-size: 1.625rem; }
  .blog-tabs { justify-content: flex-start; }
}