:root { --base-font: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif; --content-width: min(1400px, calc(100vw - 3rem)); --bg-color: #f9f9f7; --text-color: #1c1d1f; --muted-color: #6e7075; --accent-color: #0f62fe; --border-color: #e0e0dd; }

* { box-sizing: border-box; }

html { font-size: 100%; }

body { margin: 0; padding: 0; font-family: var(--base-font); font-size: 1rem; line-height: 1.7; color: var(--text-color); background: var(--bg-color); -webkit-font-smoothing: antialiased; }

a { color: var(--accent-color); text-decoration: none; transition: color 0.15s ease; }

a:hover, a:focus { text-decoration: underline; }

.wrapper { width: min(100%, var(--content-width)); max-width: var(--content-width); margin: 0 auto; padding: 0 clamp(1rem, 4vw, 2.5rem); }

.site-header { background: transparent; border-bottom: 1px solid var(--border-color); }

.site-header .wrapper { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; padding: 1.8rem 1.6rem 1.2rem; }

.site-title { font-size: 1.1rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; margin: 0; color: var(--text-color); }

.site-nav { display: flex; gap: 1.5rem; font-size: 0.95rem; text-transform: none; }

.site-nav a { color: var(--text-color); }

.site-nav a.active { color: var(--accent-color); }

main.site-content { padding: 2.6rem 0 3.2rem; }

.page-layout { display: flex; gap: clamp(1.5rem, 3vw, 2.5rem); align-items: flex-start; }

.page-content { flex: 1 1 0; min-width: 0; }

.page-toc { flex: 0 0 220px; font-size: 0.9rem; color: var(--muted-color); }

.page-toc__inner { position: sticky; top: 5.5rem; padding: 1.5rem 1.4rem; border: 1px solid var(--border-color); border-radius: 12px; background: #fff; max-height: calc(100vh - 7rem); overflow: auto; }

.page-toc nav { display: block; }

.page-toc__list { margin: 0; padding-left: 0; list-style: none; }

.page-toc__list li { margin-bottom: 0.35rem; }

.page-toc__list a { color: inherit; text-decoration: none; }

.page-toc__list a:hover { color: var(--accent-color); }

.page-toc__list .toc-depth-2 { padding-left: 0; font-weight: 600; }

.page-toc__list .toc-depth-3 { padding-left: 1.1rem; }

.page-toc__list .toc-depth-4 { padding-left: 2rem; }

.sidebar-tags { display: flex; flex-direction: column; gap: 0.8rem; }

.sidebar-tags__heading { margin: 0; font-size: 0.82rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted-color); }

.sidebar-tags__list { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 0.45rem; }

.sidebar-tags__list a { display: flex; justify-content: space-between; align-items: center; padding: 0.35rem 0.6rem; border-radius: 0.7rem; border: 1px solid transparent; color: var(--text-color); transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease; text-decoration: none; }

.sidebar-tags__list a:hover, .sidebar-tags__list a:focus { color: var(--text-color); border-color: var(--border-color); background: rgba(28, 29, 31, 0.06); text-decoration: none; }

.sidebar-tags__name { font-weight: 600; }

.sidebar-tags__count { font-size: 0.75rem; color: var(--muted-color); }

main.site-content h1 { font-size: 2rem; margin-bottom: 1.1rem; }

main.site-content h2 { font-size: 1.45rem; margin-top: 2.3rem; margin-bottom: 0.8rem; }

main.site-content h3 { font-size: 1.2rem; margin-top: 1.8rem; }

main.site-content p { margin-bottom: 1.1rem; }

.post-list { list-style: none; margin: 2.4rem 0 1.6rem; padding: 0; }

.post-list li { display: flex; flex-wrap: wrap; gap: 0.4rem 1.2rem; padding: 1.05rem 0; border-bottom: 1px solid var(--border-color); }

.post-list li:first-child { border-top: 1px solid var(--border-color); }

.post-date { font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted-color); }

.post-title { color: var(--text-color); font-size: 1.05rem; font-weight: 600; }

.post-title:hover { color: var(--accent-color); text-decoration: none; }

.post-excerpt { flex-basis: 100%; font-size: 0.92rem; color: var(--muted-color); }

.post-tags { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-top: 0.4rem; }

.post-tag { display: inline-flex; align-items: center; padding: 0.1rem 0.55rem; font-size: 0.75rem; letter-spacing: 0.04em; text-transform: uppercase; border-radius: 999px; border: 1px solid var(--border-color); background: #fff; color: var(--muted-color); }

.post-archive-note { margin-top: 2.5rem; font-size: 0.9rem; color: var(--muted-color); }

.tag-post-list { list-style: none; margin: 1.6rem 0 2.2rem; padding: 0; border: 1px solid var(--border-color); border-radius: 12px; overflow: hidden; }

.tag-post-list li { display: flex; justify-content: space-between; gap: 1rem; padding: 0.75rem 1rem; border-bottom: 1px solid var(--border-color); }

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

.tag-post-list__title { color: var(--text-color); font-weight: 600; flex: 1; }

.tag-post-list__title:hover { color: var(--accent-color); text-decoration: none; }

.post-modified { font-size: 0.75rem; color: var(--muted-color); font-style: italic; }

.tag-post-list__modified { font-size: 0.75rem; color: var(--muted-color); font-style: italic; margin-left: 0.5rem; }

.tag-post-list__meta { font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted-color); white-space: nowrap; }

hr { border: 0; border-bottom: 1px solid var(--border-color); margin: 2.2rem 0; }

p > code, li > code { display: inline-block; padding: 0.1em 0.35em; background: rgba(15, 98, 254, 0.06); border-radius: 4px; font-size: 0.92em; }

pre { background: #1f1f1f; color: #f6f6f6; padding: 1.2rem; border-radius: 8px; overflow-x: auto; font-size: 0.95rem; line-height: 1.55; }

.mermaid { margin: 2rem 0; display: block; max-width: 100%; overflow-x: auto; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif; }

.mermaid svg { display: block; margin: 0 auto; width: auto !important; height: auto !important; max-width: none; }

.mermaid svg text { fill: var(--text-color) !important; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif !important; font-size: 16px !important; }

pre code { background: transparent; padding: 0; }

.highlight { background: #1f1f1f; color: #f6f6f6; border-radius: 8px; padding: 1.1rem 1.2rem; }

.highlight pre { background: transparent; padding: 0; margin: 0; }

.highlight .nt, .highlight .na { color: #67d7ff; }

.highlight .k, .highlight .kd, .highlight .kn, .highlight .kr, .highlight .kt, .highlight .kc, .highlight .kp, .highlight .kv { color: #ffae57; }

.highlight .s, .highlight .s1, .highlight .s2, .highlight .sb, .highlight .sd, .highlight .se, .highlight .sh, .highlight .si, .highlight .sr, .highlight .ss { color: #9be564; }

.highlight .c, .highlight .cm, .highlight .cp, .highlight .c1, .highlight .cs, .highlight .ch, .highlight .cpf { color: #7f8da5; }

.highlight .m, .highlight .mf, .highlight .mh, .highlight .mi, .highlight .il { color: #f28fad; }

.highlight .o, .highlight .ow, .highlight .p { color: #e0e0e0; }

.highlight .n, .highlight .nc, .highlight .nf, .highlight .nn, .highlight .nv, .highlight .vc, .highlight .vi, .highlight .vg, .highlight .na, .highlight .nt { color: #f6f6f6; }

.highlight .nb, .highlight .bp, .highlight .ne, .highlight .ni, .highlight .no { color: #81d4fa; }

.highlight .err { color: #ffeeee; background-color: #8a1f1f; }

.highlight .gd { color: #ffb4a9; }

.highlight .gi { color: #b4f5c3; }

.highlight .w { color: inherit; }

blockquote { margin: 1.8rem 0; padding-left: 1.1rem; border-left: 3px solid var(--border-color); color: var(--muted-color); }

table { width: 100%; border-collapse: collapse; margin: 2.1rem 0; font-size: 0.95rem; }

th, td { border: 1px solid var(--border-color); padding: 0.7rem; text-align: left; }

.site-footer { border-top: 1px solid var(--border-color); padding: 1.5rem 0 2rem; color: var(--muted-color); font-size: 0.9rem; }

.footer-content { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: flex-start; gap: 2rem; }

.footer-info { flex: 1; min-width: 200px; }

.footer-visitors { flex: 0 0 auto; text-align: center; }

.visitor-counter { background: white; border-radius: 4px; padding: 0.5rem; box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1); border: 1px solid var(--border-color); display: inline-block; }

.visitor-counter img { display: block; max-width: 120px; height: auto; border-radius: 2px; }

.site-footer .wrapper { display: block; }

.site-footer a { color: inherit; }

@media (max-width: 640px) { .site-header .wrapper { flex-direction: column; align-items: flex-start; gap: 1rem; }
  .site-nav { gap: 1rem; }
  main.site-content { padding-top: 2rem; }
  .post-list li { padding: 0.9rem 0; }
  .footer-content { flex-direction: column; text-align: center; }
  .footer-visitors { margin-top: 1.5rem; }
  .visitor-counter { max-width: 100%; } }
@media (max-width: 1024px) { .page-layout { flex-direction: column; }
  .page-toc { position: static; width: 100%; }
  .page-toc__inner { position: static; max-height: none; width: 100%; margin-bottom: 1.5rem; } }