/* Public reading pages: fixed profile sidebar and a fluid article column. */
:root { --blog-bg: #f5f6f7; --blog-panel: #fff; --blog-text: #505050; --blog-muted: #929292; --blog-line: #e0e2e4; --blog-accent: #547d8a; --sidebar-width: 300px; }
html[data-bs-theme="dark"] { --blog-bg: #202124; --blog-panel: #292b2f; --blog-text: #d5d5d5; --blog-muted: #a0a3a8; --blog-line: #393c41; --blog-accent: #a0c6ce; }
html { background: var(--blog-bg); scroll-padding-top: 32px; }
body { margin: 0; background: var(--blog-bg); color: var(--blog-text); font: 14px/1.9 "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; overflow-wrap: anywhere; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--blog-accent); }
button, a { -webkit-tap-highlight-color: transparent; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--blog-accent); outline-offset: 5px; }
.blog-sidebar { position: fixed; inset: 0 auto 0 0; width: var(--sidebar-width); border-right: 1px solid var(--blog-line); padding: 30px 16px 16px; display: flex; flex-direction: column; overflow-y: auto; }
.author-card { background: var(--blog-panel); border-radius: 6px; padding: 20px 16px 32px; text-align: center; scroll-margin-top: 24px; }
.author-avatar { width: 120px; height: 120px; margin: 0 auto 16px; border: 1px solid var(--blog-line); border-radius: 50%; display: grid; place-items: center; background: var(--blog-bg); box-shadow: inset 0 0 0 5px var(--blog-panel); }
.author-avatar i { font-size: 48px; color: var(--blog-accent); }
.author-card h2 { font-size: 21px; font-weight: 500; margin: 0 0 20px; letter-spacing: .5px; }
.author-card p { font-size: 14px; line-height: 1.7; color: var(--blog-muted); margin: 0; letter-spacing: .5px; }
.site-nav { display: flex; flex-direction: column; align-items: stretch; gap: 4px; margin-top: 22px; padding: 0 12px; }
.site-nav a { display: flex; justify-content: flex-end; align-items: center; gap: 10px; padding: 5px 0; letter-spacing: .5px; }
.site-nav i { font-size: 16px; }
.site-nav .is-active { color: var(--blog-accent); }
.sidebar-footer { text-align: center; font-size: 13px; margin-top: auto; padding-top: 50px; }
.sidebar-footer div { display: flex; justify-content: center; gap: 15px; margin-bottom: 5px; }
.sidebar-footer p { margin: 0; }
.blog-column { margin-left: var(--sidebar-width); padding: 32px 40px 64px; }
.blog-main { width: 100%; max-width: 996px; margin: 0 auto; }
.post-summary { background: var(--blog-panel); border-radius: 3px; padding: 25px 32px 24px; margin-bottom: 40px; }
.post-title { font-size: 18px; font-weight: 500; line-height: 1.65; margin: 0 0 12px; }
.post-title a { display: inline; }
.post-meta { display: flex; flex-wrap: wrap; gap: 6px 18px; font-size: 12px; color: var(--blog-muted); letter-spacing: .3px; }
.post-meta i { margin-right: 4px; }
.post-excerpt { margin: 10px 0 0; line-height: 2; }
.blog-pagination { display: flex; justify-content: center; align-items: center; flex-wrap: wrap; gap: 12px; padding: 5px 0 24px; }
.blog-pagination a, .blog-pagination span { min-width: 32px; padding: 2px 8px; text-align: center; }
.blog-pagination a:hover, .blog-pagination .is-current { background: var(--blog-panel); color: var(--blog-accent); border-bottom: 1px solid var(--blog-accent); }
.empty-state { background: var(--blog-panel); padding: 80px 24px; text-align: center; color: var(--blog-muted); }
.empty-state > i { font-size: 40px; }
.post-detail { background: var(--blog-panel); border-radius: 3px; padding: 36px 40px; }
.post-detail .post-title { font-size: 26px; }
.post-detail .post-header { padding-bottom: 28px; border-bottom: 1px solid var(--blog-line); margin-bottom: 30px; }
.article-footer { margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--blog-line); font-size: 13px; color: var(--blog-muted); }
.article-tags { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 16px; }
.reading-tools { position: fixed; right: 20px; bottom: 22px; display: flex; flex-direction: column; gap: 8px; }
.reading-tools button { border: 1px solid var(--blog-line); border-radius: 4px; background: var(--blog-panel); color: var(--blog-text); width: 36px; height: 36px; }
.reading-tools button:hover { color: var(--blog-accent); }
@media (min-width: 1600px) { .blog-column { padding-right: 56px; } }
@media (max-width: 1200px) { :root { --sidebar-width: 250px; } .blog-column { padding: 28px; } }
@media (max-width: 767px) {
  .blog-sidebar { position: static; width: 100%; border-right: 0; border-bottom: 1px solid var(--blog-line); padding: 20px 20px 12px; }
  .author-card { background: none; padding: 0; display: grid; grid-template-columns: 64px 1fr; column-gap: 16px; text-align: left; align-items: center; }
  .author-avatar { width: 64px; height: 64px; grid-row: span 2; margin: 0; } .author-avatar i { font-size: 27px; }
  .author-card h2 { margin: 0; font-size: 20px; } .author-card p { font-size: 12px; } .author-card p br { display: none; }
  .site-nav { flex-direction: row; flex-wrap: wrap; gap: 16px; margin: 16px 0 0; padding: 0; } .site-nav a { gap: 5px; font-size: 13px; }
  .sidebar-footer { display: none; }
  .blog-column { margin: 0; padding: 20px 16px 60px; }
  .post-summary { padding: 22px; margin-bottom: 20px; } .post-title { font-size: 18px; }
  .post-detail { padding: 24px 22px; } .post-detail .post-title { font-size: 23px; }
  .reading-tools { right: 8px; bottom: 12px; }
}

/* Article directory stays independently scrollable in the fixed sidebar. */
.article-brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; padding: 4px 10px 20px; border-bottom: 1px solid var(--blog-line); font-size: 21px; font-weight: 500; }
.article-brand i { color: var(--blog-accent); font-size: 18px; line-height: 1; }
.article-toc { margin-top: 14px; min-height: 0; display: flex; flex: 1; flex-direction: column; }
.article-toc nav { overflow-y: auto; min-height: 0; scrollbar-width: thin; overscroll-behavior: contain; }
.article-toc ol { list-style: none; padding: 0; margin: 0; }
.article-toc li { margin: 2px 0; }
.article-toc a { display: block; padding: 5px 8px 5px calc(10px + var(--toc-depth) * 12px); border-left: 2px solid transparent; font-size: 13px; line-height: 1.6; }
.article-toc a:hover, .article-toc a[aria-current="location"] { color: var(--blog-accent); background: var(--blog-panel); border-left-color: var(--blog-accent); }
.toc-empty { font-size: 13px; color: var(--blog-muted); margin: 12px 0; }
.article-body :is(h1, h2, h3, h4, h5, h6) { scroll-margin-top: 32px; }
@media (max-width: 767px) {
  .article-brand { padding: 0 0 12px; font-size: 20px; }
  .article-toc { margin-top: 12px; }
  .article-toc nav { max-height: 40dvh; }
}