:root {
  --bg: #f6f2e8;
  --bg-soft: #fdfbf6;
  --ink: #181715;
  --ink-soft: #4f4a42;
  --line: #d9d2c4;
  --accent: #234132;
  --accent-soft: #e5eee9;
  --radius: 12px;
  --shadow: 0 14px 30px rgba(26, 28, 24, 0.08);
  --container: 1360px;
  --motion-fast: 180ms;
  --motion-mid: 260ms;
  --ease-standard: cubic-bezier(0.2, 0, 0, 1);
  --code-bg: #1e1e1e;
  --code-bg-soft: #252526;
  --code-border: #323233;
  --code-ink: #d4d4d4;
  --code-muted: #858585;
  --code-accent: #ff9d00;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background:
    radial-gradient(circle at 12% 8%, #ebe3d2 0%, transparent 30%),
    radial-gradient(circle at 86% 92%, #ece7dc 0%, transparent 26%),
    var(--bg);
  color: var(--ink);
  font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", serif;
  line-height: 1.8;
}

.site-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
}

.site-shell::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(35, 65, 50, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(35, 65, 50, 0.04) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: radial-gradient(circle at center, black 42%, transparent 100%);
  z-index: -1;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(var(--container), calc(100% - 2.6rem));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(8px);
  background: rgba(246, 242, 232, 0.9);
  border-bottom: 1px solid var(--line);
}

.nav-wrap {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink);
  font-family: "Space Grotesk", "PingFang SC", sans-serif;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.brand:hover {
  text-decoration: none;
}

.brand-mark {
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--accent);
  font-size: 0.8rem;
}

.menu-toggle {
  display: none;
  border: 1px solid var(--line);
  background: var(--bg-soft);
  border-radius: 999px;
  padding: 0.35rem 0.9rem;
  font-family: inherit;
}

.menu-list {
  list-style: none;
  display: flex;
  gap: 1rem;
  margin: 0;
  padding: 0;
  font-size: 0.95rem;
}

.menu-list a {
  display: inline-block;
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  color: var(--ink-soft);
}

.menu-list a.active,
.menu-list a:hover {
  text-decoration: none;
  background: var(--accent-soft);
  color: var(--accent);
}

.reading-progress {
  position: fixed;
  top: 74px;
  left: 0;
  height: 2px;
  width: 0;
  background: linear-gradient(to right, #2f6249, #4f8068);
  z-index: 40;
}

.main-shell {
  flex: 1;
  padding: 2.2rem 0 3rem;
}

.hero {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 4px);
  box-shadow: var(--shadow);
  padding: 3.2rem clamp(1rem, 4vw, 3.3rem);
  margin-bottom: 2rem;
  animation: fadeUp var(--motion-mid) var(--ease-standard);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: 1.2rem;
}

.hero-main {
  min-width: 0;
}

.hero-side {
  display: grid;
  gap: 0.75rem;
  align-content: start;
}

.stat-card {
  border: 1px solid #d7d9cf;
  background: #fcfaf4;
  border-radius: 10px;
  padding: 0.75rem 0.85rem;
}

.stat-card p {
  margin: 0;
  color: #66705f;
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-family: "Space Grotesk", "PingFang SC", sans-serif;
}

.stat-card strong {
  display: inline-block;
  margin-top: 0.25rem;
  font-size: 1.1rem;
}

.hero-kicker {
  margin: 0;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.78rem;
  font-family: "Space Grotesk", "PingFang SC", sans-serif;
}

.hero h1,
.page-head h1,
.article-head h1 {
  margin: 0.6rem 0 0;
  font-size: clamp(1.8rem, 4vw, 2.9rem);
  line-height: 1.25;
}

.hero-text {
  max-width: 64ch;
  margin-top: 0.9rem;
  color: var(--ink-soft);
}

.hero-actions {
  margin-top: 1.5rem;
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.hero-topics {
  margin-top: 1.4rem;
  border-top: 1px dashed #d8d1c3;
  padding-top: 0.85rem;
}

.hero-topics > p {
  margin: 0;
  color: #5f6557;
  font-size: 0.86rem;
}

.hero-topic-list {
  margin-top: 0.55rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.hero-topic-list a {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  border: 1px solid #dad4c8;
  border-radius: 999px;
  padding: 0.22rem 0.58rem;
  color: #2b3d31;
  background: #fffdf9;
}

.hero-topic-list a strong {
  color: #6c7466;
  font-size: 0.84rem;
}

.updates-panel {
  margin-top: -0.2rem;
}

.updates-list {
  display: grid;
  gap: 0.5rem;
}

.update-item {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 0.8rem;
  align-items: center;
  border: 1px solid #dfd7cb;
  border-radius: 10px;
  background: #fffef8;
  padding: 0.55rem 0.7rem;
  color: #1f221f;
}

.update-item time {
  color: #6f6a61;
  font-size: 0.86rem;
}

.update-item span {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.btn {
  border-radius: 999px;
  border: 1px solid var(--accent);
  color: #fff;
  background: var(--accent);
  padding: 0.55rem 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn:hover {
  text-decoration: none;
  filter: brightness(1.05);
}

.btn-ghost {
  color: var(--accent);
  background: transparent;
}

.panel {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.3rem;
  margin-bottom: 1.2rem;
}

.author-panel {
  border-style: dashed;
}

.author-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
}

.author-avatar {
  width: 56px;
  height: 56px;
  border-radius: 999px;
  background: #e9efe7;
  border: 1px solid #cbd8d0;
  color: #224030;
  font-family: "Space Grotesk", "PingFang SC", sans-serif;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.author-name {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
}

.author-role {
  margin: 0.2rem 0 0;
  color: #496453;
  font-size: 0.92rem;
}

.author-bio {
  margin: 0.45rem 0 0;
  color: var(--ink-soft);
}

.author-link {
  margin-top: 0.55rem;
  display: inline-flex;
  font-size: 0.9rem;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.8rem;
}

.panel-head h2 {
  margin: 0;
  font-size: 1.18rem;
}

.post-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.featured-grid .post-card {
  background: linear-gradient(180deg, #fffefb 0%, #f7f3ea 100%);
  border-color: #cfdacc;
}

.post-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem;
  background: #fffef9;
  transition: transform var(--motion-fast) var(--ease-standard), box-shadow var(--motion-fast) var(--ease-standard);
}

.post-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(27, 27, 25, 0.08);
}

.post-card h2 {
  margin: 0;
  font-size: 1.18rem;
  line-height: 1.4;
}

.post-card h2 a {
  color: var(--ink);
}

.post-card p {
  margin: 0.85rem 0 0;
  color: var(--ink-soft);
  font-size: 0.96rem;
}

.post-flag {
  margin: 0.6rem 0 0;
  display: inline-flex;
  border-radius: 999px;
  border: 1px solid #c8d9cd;
  background: #edf4ef;
  color: #2f5d45;
  font-size: 0.76rem;
  padding: 0.07rem 0.5rem;
}

.post-card-header {
  display: grid;
  gap: 0.5rem;
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  color: #6d685e;
  font-size: 0.85rem;
}

.tag-row {
  list-style: none;
  margin: 0.8rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.tag-row li {
  font-size: 0.8rem;
  background: #edf1ec;
  color: #2e5641;
  border: 1px solid #dce8df;
  border-radius: 999px;
  padding: 0.15rem 0.55rem;
}

.tag-row li a {
  color: inherit;
}

.page-head {
  margin-bottom: 1rem;
}

.page-intro {
  color: var(--ink-soft);
}

.taxonomy-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.taxonomy-cloud a {
  display: inline-flex;
  gap: 0.35rem;
  align-items: center;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  background: #fffef9;
  border: 1px solid var(--line);
  color: var(--ink);
}

.taxonomy-cloud span {
  color: #5e705f;
  font-size: 0.85rem;
}

.pager {
  margin-top: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
  font-size: 0.9rem;
}

.article-wrap {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.6rem;
}

.article-head {
  border-bottom: 1px solid var(--line);
  padding-bottom: 1rem;
}

.section-progress {
  margin-top: 0.8rem;
  height: 4px;
  border-radius: 999px;
  background: #e6e0d4;
  overflow: hidden;
}

.section-progress-bar {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(to right, #3f6a53, #75a188);
  transition: width var(--motion-fast) var(--ease-standard);
}

.article-layout {
  margin-top: 1.4rem;
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  grid-template-areas: "toc content";
  gap: 1.2rem;
  align-items: start;
}

.article-toc-mobile {
  display: none;
  margin-top: 1rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #faf7f0;
}

.article-toc-mobile summary {
  cursor: pointer;
  padding: 0.7rem 0.9rem;
  color: #2f473a;
  font-family: "Space Grotesk", "PingFang SC", sans-serif;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.article-toc-mobile-actions {
  padding: 0 0.9rem 0.2rem;
}

.article-toc-mobile-body {
  padding: 0 0.9rem 0.7rem;
  font-size: 0.92rem;
}

.article-toc-mobile-body ul {
  margin: 0;
  padding-left: 1rem;
}

.article-content {
  min-width: 0;
  grid-area: content;
}

.article-toc {
  grid-area: toc;
  position: sticky;
  top: 98px;
  align-self: start;
  max-height: calc(100vh - 118px);
  overflow-y: auto;
  overscroll-behavior: contain;
  -ms-overflow-style: none;
  scrollbar-width: none;
  border-right: 1px solid var(--line);
  padding-right: 0.9rem;
  border-left: 0;
  padding-left: 0;
  font-size: 0.9rem;
}

.article-toc::-webkit-scrollbar {
  display: none;
}

.article-toc-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
}

.article-toc > p {
  margin-top: 0;
  color: #596052;
  font-family: "Space Grotesk", "PingFang SC", sans-serif;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 0.75rem;
}

.toc-top-btn {
  border: 1px solid #d4d8cb;
  background: #f8f8f2;
  color: #31453a;
  border-radius: 999px;
  padding: 0.15rem 0.6rem;
  font-size: 0.72rem;
  cursor: pointer;
}

.page-top-fab {
  position: fixed;
  right: 1.3rem;
  bottom: 1.2rem;
  border: 1px solid #cfd6c7;
  background: rgba(248, 248, 242, 0.94);
  color: #31453a;
  border-radius: 999px;
  padding: 0.42rem 0.78rem;
  font-size: 0.78rem;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(30, 35, 31, 0.13);
  z-index: 41;
}

.page-top-fab:hover {
  filter: brightness(0.98);
}

.toc-top-btn:hover {
  filter: brightness(0.98);
}

.article-toc ul {
  margin: 0;
  padding-left: 1rem;
}

.article-toc li {
  margin: 0.35rem 0;
}

.article-toc a,
.article-toc-mobile a {
  color: #4f554d;
  text-underline-offset: 2px;
}

.article-toc a.active,
.article-toc-mobile a.active {
  color: #1e4a35;
  font-weight: 700;
}

.prose h2,
.prose h3,
.prose h4 {
  line-height: 1.35;
  margin-top: 1.8em;
}

.prose p,
.prose li {
  color: #1f1c18;
}

.prose p {
  margin: 0.9rem 0;
}

.prose h2 {
  border-top: 1px dashed #d8d0c2;
  padding-top: 0.9rem;
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.2rem 0;
  font-size: 0.95rem;
}

.prose table th,
.prose table td {
  border: 1px solid #d8d2c7;
  padding: 0.45rem 0.6rem;
  text-align: left;
}

.prose table th {
  background: #f1ece1;
}

.prose figure {
  margin: 1.2rem 0;
}

.prose figcaption {
  margin-top: 0.4rem;
  color: #6a6458;
  font-size: 0.88rem;
}

.prose img {
  max-width: 100%;
  border-radius: 8px;
  border: 1px solid var(--line);
}

.prose img.zoomable {
  cursor: zoom-in;
  transition: transform var(--motion-fast) var(--ease-standard), box-shadow var(--motion-fast) var(--ease-standard);
}

.prose img.zoomable:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(32, 39, 34, 0.12);
}

.prose blockquote {
  margin: 1.2rem 0;
  border-left: 3px solid #99b2a5;
  background: #f0f5ef;
  padding: 0.5rem 1rem;
  color: #31493f;
}

.prose code {
  background: #ede9df;
  padding: 0.1rem 0.35rem;
  border-radius: 5px;
  font-family: "JetBrains Mono", Consolas, monospace;
  font-size: 0.92em;
}

.prose pre {
  background: var(--code-bg);
  color: var(--code-ink);
  border-radius: 10px;
  border: 1px solid var(--code-border);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
  padding: 0.95rem;
  overflow-x: auto;
}

.prose pre.chroma {
  background: var(--code-bg);
}

.prose pre.has-toolbar {
  padding-top: 0;
}

.code-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.55rem 0.68rem;
  border-bottom: 1px solid #3d3d48;
  background: var(--code-bg-soft);
  border-top-left-radius: 10px;
  border-top-right-radius: 10px;
  margin: 0 -0.95rem 0.75rem;
}

.code-actions {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.code-lang {
  color: #c8cbd6;
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: "Space Grotesk", "PingFang SC", sans-serif;
}

.code-lang-bash {
  color: #e6d39b;
}

.code-lang-sh {
  color: #e6d39b;
}

.code-lang-json {
  color: #9fd2d3;
}

.code-lang-cpp,
.code-lang-c-- {
  color: #ffd76a;
}

.code-copy-btn {
  border: 1px solid #a95d1b;
  background: #7a3f0d;
  color: #ffe8cc;
  border-radius: 999px;
  padding: 0.15rem 0.62rem;
  font-size: 0.75rem;
  cursor: pointer;
  transition: filter var(--motion-fast) var(--ease-standard);
}

.code-copy-btn:hover {
  filter: brightness(1.08);
}

.code-lines-btn {
  border: 1px solid #4d4d4f;
  background: #2f2f31;
  color: #d4d4d4;
  border-radius: 999px;
  padding: 0.15rem 0.62rem;
  font-size: 0.75rem;
  cursor: pointer;
}

.code-fold-btn {
  border: 1px solid #4d4d4f;
  background: #2f2f31;
  color: #d4d4d4;
  border-radius: 999px;
  padding: 0.15rem 0.62rem;
  font-size: 0.75rem;
  cursor: pointer;
}

.code-fold-btn:hover {
  filter: brightness(1.08);
}

html.code-folded .code-fold-btn {
  border-color: #a95d1b;
  background: #7a3f0d;
  color: #ffe8cc;
}

.code-lines-btn:hover {
  filter: brightness(1.08);
}

html.show-line-numbers .code-lines-btn {
  border-color: #a95d1b;
  background: #7a3f0d;
  color: #ffe8cc;
}

.prose pre.code-lines-ready {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 0.8rem;
  align-items: start;
}

html.code-folded .prose pre.code-lines-ready > code,
html.code-folded .prose pre.code-lines-ready .code-line-gutter {
  max-height: 14.5rem;
  overflow: hidden;
  position: relative;
}

html.code-folded .prose pre.code-lines-ready > code::after {
  content: "";
  position: sticky;
  display: block;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2.8rem;
  background: linear-gradient(to bottom, rgba(30, 30, 30, 0), rgba(30, 30, 30, 0.98));
}

.prose pre.code-lines-ready .code-toolbar {
  grid-column: 1 / -1;
}

.prose pre.code-lines-ready .code-line-gutter,
.prose pre.code-lines-ready > code {
  font-family: "JetBrains Mono", Consolas, monospace;
  font-size: 0.9rem;
  line-height: 1.6;
  white-space: pre;
}

.prose pre.code-lines-ready .code-line-gutter {
  display: none;
  color: var(--code-muted);
  user-select: none;
  text-align: right;
  min-width: 2.4ch;
  border-right: 1px solid #4a4c59;
  padding-right: 0.6rem;
}

html.show-line-numbers .prose pre.code-lines-ready .code-line-gutter {
  display: block;
}

.prose pre code {
  background: transparent;
  color: inherit;
  padding: 0;
}

.prose .chroma,
.prose .chroma .line,
.prose .chroma .cl {
  color: var(--code-ink);
}

.prose pre code .k,
.prose .chroma .k,
.prose pre code .kn,
.prose .chroma .kn,
.prose pre code .kp,
.prose .chroma .kp,
.prose pre code .kr,
.prose .chroma .kr {
  color: #4fb6ff;
}

.prose pre code .kt,
.prose .chroma .kt {
  color: #ffd861;
}

.prose pre code .nf,
.prose .chroma .nf,
.prose pre code .fm,
.prose .chroma .fm {
  color: #ff9d00;
}

.prose pre code .nc,
.prose .chroma .nc {
  color: #ffe36b;
}

.prose pre code .nb,
.prose .chroma .nb,
.prose pre code .nx,
.prose .chroma .nx,
.prose pre code .n,
.prose .chroma .n {
  color: #d7ba7d;
}

.prose pre code .n.tok-type,
.prose .chroma .n.tok-type {
  color: #ffe36b;
}

.prose pre code .n.tok-var,
.prose .chroma .n.tok-var {
  color: #d7ba7d;
}

.prose pre code .n.tok-call,
.prose .chroma .n.tok-call {
  color: #ff9d00;
}

.prose pre code .n.tok-enum-value,
.prose .chroma .n.tok-enum-value {
  color: #ff9d00;
}

.prose pre code .n.tok-macro,
.prose .chroma .n.tok-macro {
  color: #d16dff;
}

.prose pre code .s,
.prose .chroma .s,
.prose pre code .s1,
.prose .chroma .s1,
.prose pre code .s2,
.prose .chroma .s2,
.prose pre code .sb,
.prose .chroma .sb,
.prose pre code .sc,
.prose .chroma .sc,
.prose pre code .se,
.prose .chroma .se,
.prose pre code .sr,
.prose .chroma .sr {
  color: #ce9178;
}

.prose pre code .m,
.prose .chroma .m,
.prose pre code .mi,
.prose .chroma .mi,
.prose pre code .mf,
.prose .chroma .mf,
.prose pre code .mh,
.prose .chroma .mh,
.prose pre code .mo,
.prose .chroma .mo {
  color: #b5cea8;
}

.prose pre code .c,
.prose .chroma .c,
.prose pre code .c1,
.prose .chroma .c1,
.prose pre code .cm,
.prose .chroma .cm,
.prose pre code .cp,
.prose .chroma .cp,
.prose pre code .cs,
.prose .chroma .cs,
.prose pre code .cpf,
.prose .chroma .cpf {
  color: #6a9955;
  font-style: italic;
}

.prose pre code .o,
.prose .chroma .o,
.prose pre code .p,
.prose .chroma .p {
  color: #d4d4d4;
}

.prose pre code .nd,
.prose .chroma .nd,
.prose pre code .ne,
.prose .chroma .ne,
.prose pre code .no,
.prose .chroma .no {
  color: #c586c0;
}

.prose pre code .nn,
.prose .chroma .nn,
.prose pre code .nl,
.prose .chroma .nl {
  color: #4fc1ff;
}

.prose pre code .err,
.prose .chroma .err {
  color: #f44747;
}

.image-lightbox {
  position: fixed;
  inset: 0;
  background: rgba(15, 18, 16, 0.86);
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0.8rem;
  z-index: 100;
  padding: 1rem;
}

.image-lightbox.open {
  display: flex;
}

.image-lightbox-close {
  align-self: flex-end;
  border: 1px solid rgba(231, 239, 235, 0.45);
  background: rgba(30, 39, 34, 0.62);
  color: #f3f8f4;
  border-radius: 999px;
  padding: 0.35rem 0.8rem;
  cursor: pointer;
}

.image-lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 2.1rem;
  height: 2.1rem;
  border: 1px solid rgba(222, 234, 226, 0.4);
  border-radius: 999px;
  background: rgba(23, 29, 26, 0.66);
  color: #f0f7f3;
  font-size: 1.35rem;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.image-lightbox-nav.prev {
  left: 1rem;
}

.image-lightbox-nav.next {
  right: 1rem;
}

.image-lightbox-nav:disabled {
  opacity: 0.35;
  cursor: default;
}

.image-lightbox-image {
  max-width: min(1100px, 100%);
  max-height: calc(100vh - 6rem);
  border-radius: 10px;
  border: 1px solid rgba(232, 239, 234, 0.25);
}

.image-lightbox-caption {
  margin: 0;
  color: #d4ded7;
  font-size: 0.9rem;
}

body.lightbox-open {
  overflow: hidden;
}

.archive-list .archive-year {
  padding: 0.4rem 0 0.8rem;
  border-bottom: 1px dashed var(--line);
}

.archive-list .archive-year:last-child {
  border-bottom: 0;
}

.archive-list h2 {
  margin-bottom: 0.4rem;
}

.archive-list ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.45rem;
}

.archive-list li {
  display: grid;
  grid-template-columns: 60px minmax(0, 1fr);
  gap: 0.8rem;
  align-items: baseline;
}

.archive-list time {
  color: #7b756a;
  font-size: 0.9rem;
}

.post-nav {
  margin-top: 2rem;
  border-top: 1px solid var(--line);
  padding-top: 1rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.post-nav-item {
  border: 1px solid #dfd8c9;
  border-radius: 10px;
  padding: 0.7rem 0.85rem;
  background: #fcfaf4;
  min-height: 74px;
}

.post-nav-item span {
  display: block;
  color: #6f695e;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.post-nav-item a {
  display: inline-block;
  margin-top: 0.35rem;
  color: #1f2f25;
}

.post-nav-item.next {
  text-align: right;
}

.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 2rem;
  padding: 1.1rem 0 2.2rem;
}

.footer-inner p {
  margin: 0.25rem 0;
}

.muted {
  color: #6f695f;
  font-size: 0.9rem;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0ms !important;
    scroll-behavior: auto !important;
  }
}

@media (max-width: 980px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-side {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .article-layout {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas: "content";
  }

  .article-content {
    max-height: none;
    overflow: visible;
  }

  .article-toc {
    display: none;
    border-right: 0;
    padding-right: 0;
  }

  .article-toc-mobile {
    display: block;
  }

  .page-top-fab {
    right: 0.9rem;
    bottom: 0.9rem;
  }
}

@media (max-width: 760px) {
  .main-shell {
    padding-top: 1.2rem;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .menu-list {
    display: none;
    position: absolute;
    right: 1.2rem;
    top: 64px;
    flex-direction: column;
    gap: 0.2rem;
    background: var(--bg-soft);
    border: 1px solid var(--line);
    border-radius: 10px;
    box-shadow: var(--shadow);
    padding: 0.5rem;
    min-width: 124px;
  }

  .menu-list.open {
    display: flex;
  }

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

  .hero {
    padding: 2rem 1rem;
  }

  .image-lightbox-nav {
    width: 1.9rem;
    height: 1.9rem;
    font-size: 1.2rem;
  }

  .image-lightbox-nav.prev {
    left: 0.4rem;
  }

  .image-lightbox-nav.next {
    right: 0.4rem;
  }

  .hero-side {
    grid-template-columns: 1fr;
  }

  .update-item {
    grid-template-columns: 1fr;
    gap: 0.15rem;
  }

  .update-item span {
    white-space: normal;
  }

  .author-card {
    grid-template-columns: 1fr;
  }

  .post-nav {
    grid-template-columns: 1fr;
  }

  .post-nav-item.next {
    text-align: left;
  }
}