:root {
  --bg: #000000;
  --bg-elev: #070707;
  --bg-soft: #111111;
  --text: #f4f4f4;
  --text-subtle: #aaaaaa;
  --line: #242424;
  --line-strong: #363636;
  --bg-top: #050505;
  --bg-glow-1: rgba(255, 255, 255, 0.08);
  --bg-glow-2: rgba(255, 255, 255, 0.04);
  --header-bg: rgba(0, 0, 0, 0.72);
  --header-progress: #ffffff;
  --control-bg-hover: rgba(255, 255, 255, 0.1);
  --control-border-hover: #6a6a6a;
  --footer-bg: rgba(0, 0, 0, 0.9);
  --radius: 14px;
  --shell: 1160px;
}

:root[data-theme="light"] {
  --bg: #f7f1e6;
  --bg-elev: #fff9ef;
  --bg-soft: #efe4d3;
  --text: #2b241d;
  --text-subtle: #75695b;
  --line: #d9cebf;
  --line-strong: #c8b9a7;
  --bg-top: #f3eadc;
  --bg-glow-1: rgba(189, 160, 122, 0.2);
  --bg-glow-2: rgba(166, 136, 98, 0.1);
  --header-bg: rgba(247, 241, 230, 0.78);
  --header-progress: #5a4a3c;
  --control-bg-hover: rgba(99, 78, 56, 0.1);
  --control-border-hover: #9c8670;
  --footer-bg: rgba(234, 223, 208, 0.8);
}

* {
  box-sizing: border-box;
}

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

body {
  color: var(--text);
  background:
    radial-gradient(1000px 600px at 80% -10%, var(--bg-glow-1), transparent 55%),
    radial-gradient(700px 450px at -10% 0%, var(--bg-glow-2), transparent 60%),
    linear-gradient(180deg, var(--bg-top) 0%, var(--bg) 45%);
  font-family: "IBM Plex Sans", "Avenir Next", "Helvetica Neue", Helvetica, Arial, sans-serif;
  line-height: 1.68;
}

a {
  color: inherit;
  text-decoration: none;
  transition: opacity 0.24s ease;
}

a:hover {
  opacity: 0.9;
}

.shell {
  width: min(var(--shell), calc(100% - 56px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(10px);
  background: var(--header-bg);
}

.header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.header-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  pointer-events: none;
  overflow: hidden;
}

.header-progress-bar {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--header-progress);
  transform: scaleX(0);
  transform-origin: left center;
  opacity: 0;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.brand {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.site-nav a {
  font-size: 0.94rem;
  color: var(--text-subtle);
}

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

.theme-toggle {
  width: 36px;
  height: 36px;
  margin-left: 2px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.theme-toggle:hover {
  border-color: var(--control-border-hover);
  background: var(--control-bg-hover);
}

.theme-icon {
  width: 17px;
  height: 17px;
}

.theme-toggle .icon-sun {
  display: none;
}

:root[data-theme="light"] .theme-toggle .icon-sun {
  display: block;
}

:root[data-theme="light"] .theme-toggle .icon-moon {
  display: none;
}

.main-content {
  padding: 56px 0 90px;
}

.hero {
  margin-bottom: 56px;
  padding-bottom: 0;
}

.hero-kicker,
.card-kicker,
.article-kicker {
  margin: 0;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-subtle);
  font-weight: 600;
}

.hero h1,
.article-header h1,
.card-title {
  font-family: "Iowan Old Style", "Baskerville", "Times New Roman", serif;
  line-height: 1.08;
  letter-spacing: -0.01em;
}

.hero h1 {
  margin: 14px 0 12px;
  font-size: clamp(2.2rem, 5.8vw, 5rem);
}

.hero-subtitle,
.hero-description {
  margin: 8px 0 0;
  max-width: 780px;
  color: var(--text-subtle);
}

.hero-compact {
  margin-bottom: 40px;
}

.hero-compact h1 {
  font-size: clamp(1.9rem, 4.2vw, 3.3rem);
  margin-bottom: 0;
}

.post-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 48px 36px;
}

.news-card {
  background: transparent;
  border: 0;
  border-radius: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.card-cover {
  display: block;
  aspect-ratio: 2 / 1;
  overflow: hidden;
  border-radius: 10px 10px 0 0;
  background: #c7ced9;
  border: 0;
}

.card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  transition: transform 0.34s ease;
}

.news-card:hover .card-cover img {
  transform: none;
}

.card-content {
  padding: 0;
}

.card-title {
  margin: 10px 0 10px;
  font-size: clamp(1.52rem, 2.2vw, 2.2rem);
}

.card-title a {
  text-decoration: none;
}

.card-title a:hover {
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 6px;
}

.card-meta {
  margin: 0 0 10px;
  font-size: 0.88rem;
  letter-spacing: 0.01em;
  color: var(--text-subtle);
}

.card-excerpt {
  margin: 0;
  color: var(--text-subtle);
}

.card-link {
  display: inline-block;
  margin-top: 14px;
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
}

.card-link:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.pagination {
  margin-top: 42px;
  display: flex;
  gap: 10px;
}

.page-link {
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: transparent;
  font-size: 0.9rem;
  color: var(--text-subtle);
}

.page-link:hover {
  color: var(--text);
  border-color: var(--control-border-hover);
}

.load-more-wrap {
  margin-top: 56px;
  display: flex;
  justify-content: center;
}

.load-more-btn {
  min-width: 172px;
  height: 46px;
  padding: 0 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--text);
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.005em;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.load-more-btn:hover {
  border-color: var(--control-border-hover);
  background: var(--control-bg-hover);
  color: var(--text);
}

.load-more-btn:disabled {
  cursor: wait;
  opacity: 0.8;
}

.load-more-enhanced .pagination-index-fallback {
  display: none;
}

.article-page {
  max-width: 860px;
  margin: 0 auto;
}

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

.article-header {
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.article-header h1 {
  margin: 10px 0 12px;
  font-size: clamp(2.1rem, 5vw, 4.2rem);
}

.article-meta {
  margin: 0;
  color: var(--text-subtle);
}

.article-cover {
  margin: 30px 0 0;
  border-radius: var(--radius);
  overflow: hidden;
}

.article-cover img {
  width: 100%;
  display: block;
}

.article-content {
  margin: 30px auto 0;
  background: transparent;
  border: 0;
  border-radius: 0;
  padding: 0;
}

.article-content h2,
.article-content h3,
.article-content h4 {
  margin-top: 1.9em;
  line-height: 1.24;
}

.article-content p,
.article-content li {
  color: var(--text);
}

.article-content a {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.article-content img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
  border-radius: 10px;
  cursor: zoom-in;
}

.article-content .image-caption {
  display: block;
  margin-top: 10px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-subtle);
  letter-spacing: 0.02em;
}

.article-content mjx-container[jax="SVG"] {
  font-size: 1.08em;
}

.article-content mjx-container[jax="SVG"][display="true"] {
  margin: 1.15em 0;
}

.article-content pre {
  max-width: 100%;
  overflow-x: auto;
  background: var(--bg-soft);
  color: var(--text);
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  padding: 16px;
}

.article-content pre code {
  display: block;
  width: max-content;
  min-width: 100%;
  white-space: pre;
}

.article-content figure.highlight {
  display: block;
  width: 100%;
  max-width: 100%;
  margin: 1.1em 0;
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  text-align: left;
}

.article-content figure.highlight table {
  max-width: none;
  width: max-content;
  min-width: 100%;
  border-collapse: collapse;
}

.article-content figure.highlight td {
  vertical-align: top;
}

.article-content figure.highlight pre {
  margin: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  overflow: visible;
  text-align: left;
}

.article-content figure.highlight .gutter pre {
  padding-right: 12px;
  color: var(--text-subtle);
  user-select: none;
}

.article-content figure.highlight .code pre {
  padding-left: 12px;
}

.article-content figure.highlight code,
.article-content figure.highlight td {
  text-align: left;
}

.article-content code {
  font-family: "SF Mono", Menlo, Consolas, monospace;
}

.article-tags {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.article-tags a {
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.8rem;
  color: var(--text-subtle);
  background: transparent;
}

.article-tags a:hover {
  color: var(--text);
  border-color: var(--control-border-hover);
}

.article-page-about {
  max-width: 980px;
}

.article-page-about .article-header {
  display: none;
}

.article-page-about .article-content {
  margin-top: 0;
  font-family: "Iowan Old Style", "Baskerville", "Times New Roman", serif;
}

.cv-paper {
  background: transparent;
  border: 0;
  border-radius: 0;
  color: var(--text);
  padding: 0;
  line-height: 1.32;
  box-shadow: none;
}

.cv-paper p,
.cv-paper li {
  color: inherit;
}

.cv-paper a {
  color: var(--text);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.cv-head {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 18px 28px;
  align-items: end;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.cv-name {
  margin: 0;
  font-size: clamp(2.4rem, 4.5vw, 3.2rem);
  line-height: 1.04;
  letter-spacing: -0.01em;
}

.cv-line {
  margin: 3px 0 0;
  font-size: 1.03rem;
}

.cv-contact {
  text-align: right;
  font-size: 0.99rem;
  line-height: 1.4;
}

.cv-contact p {
  margin: 0;
}

.cv-block {
  margin-top: 18px;
}

.cv-block h2 {
  margin: 0 0 9px;
  font-size: 2.06rem;
  line-height: 1.08;
}

.cv-entry + .cv-entry {
  margin-top: 9px;
}

.cv-entry-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
}

.cv-entry-head h3 {
  margin: 0;
  font-size: 1.28rem;
  font-variant: small-caps;
  letter-spacing: 0.04em;
}

.cv-loc {
  margin: 0;
  font-size: 1.06rem;
  font-style: italic;
  color: var(--text-subtle);
  white-space: nowrap;
}

.cv-entry p {
  margin: 4px 0 0;
}

.cv-exp-item {
  display: grid;
  grid-template-columns: 106px minmax(0, 1fr);
  gap: 20px;
}

.cv-exp-item + .cv-exp-item {
  margin-top: 12px;
}

.cv-year {
  margin: 2px 0 0;
  color: var(--text-subtle);
  font-size: 1.03rem;
}

.cv-exp-main p {
  margin: 4px 0 0;
}

.cv-list {
  margin: 0;
  padding-left: 22px;
}

.cv-list li + li {
  margin-top: 4px;
}

.article-toc {
  display: none;
  min-width: 0;
}

.article-toc[hidden] {
  display: none !important;
}

.article-toc-inner {
  padding: 0;
  border: 0;
  background: transparent;
}

.article-toc-title {
  margin: 0 0 12px;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--text-subtle);
}

.article-toc-nav .toc,
.article-toc-nav .toc-child {
  list-style: none;
  margin: 0;
  padding: 0;
}

.article-toc-nav .toc-item + .toc-item {
  margin-top: 6px;
}

.article-toc-nav .toc-child {
  margin-top: 6px;
  margin-left: 14px;
  padding-left: 0;
  border-left: 0;
}

.article-toc-nav .toc-link {
  display: block;
  padding: 0;
  font-size: 0.86rem;
  line-height: 1.4;
  color: var(--text-subtle);
  transition: color 0.2s ease, font-weight 0.2s ease;
}

.article-toc-nav .toc-link:hover {
  color: var(--text);
}

.article-toc-nav .toc-link.is-active {
  color: var(--text);
  font-weight: 700;
}

.article-comments {
  max-width: 860px;
  margin: 42px auto 0;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

/* Disqus official scheme detection uses inherited text color from #disqus_thread. */
#disqus_thread {
  color: var(--text);
}

.lightbox-open {
  overflow: hidden;
}

.image-lightbox {
  position: fixed;
  inset: 0;
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 28px;
  background: rgba(0, 0, 0, 0.88);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.image-lightbox.is-open {
  opacity: 1;
  pointer-events: auto;
}

.image-lightbox-figure {
  margin: 0;
  max-width: min(1200px, 94vw);
  max-height: 86vh;
}

.image-lightbox-media {
  display: block;
  max-width: 100%;
  max-height: 80vh;
  width: auto;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.5);
}

.image-lightbox-caption {
  margin-top: 10px;
  text-align: center;
  color: #d7d7d7;
  font-size: 0.9rem;
  letter-spacing: 0.01em;
}

.image-lightbox-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 42px;
  height: 42px;
  border: 1px solid #3c3c3c;
  border-radius: 999px;
  background: rgba(20, 20, 20, 0.85);
  color: #f0f0f0;
  font-size: 1.6rem;
  line-height: 1;
  cursor: pointer;
}

.image-lightbox-close:hover {
  border-color: #6f6f6f;
}

.taxonomy-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.taxonomy-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 52px;
  padding: 12px 16px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.02);
}

.taxonomy-item:hover {
  border-color: var(--control-border-hover);
  background: var(--control-bg-hover);
}

.taxonomy-name {
  overflow-wrap: anywhere;
}

.taxonomy-count {
  flex-shrink: 0;
  color: var(--text-subtle);
  font-size: 0.84rem;
}

@media (min-width: 1360px) {
  .article-page[data-enable-toc="1"] .article-toc {
    display: block;
    position: fixed;
    top: 47%;
    left: max(20px, calc((100vw - 860px) / 2 - 240px));
    width: 200px;
    max-height: calc(100vh - 120px);
    overflow: auto;
    transform: translateY(-50%);
    z-index: 8;
  }
}

.site-footer {
  background: var(--footer-bg);
}

.footer-inner {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--text-subtle);
}

.footer-author {
  margin: 0;
  font-family: "Allison", "Snell Roundhand", "Brush Script MT", cursive;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  letter-spacing: 0.03em;
  line-height: 1;
  color: var(--text);
}

@media (max-width: 980px) {
  .post-grid {
    grid-template-columns: 1fr;
    gap: 42px;
  }

  .taxonomy-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .main-content {
    padding-top: 38px;
  }

  .cv-head {
    grid-template-columns: 1fr;
    gap: 12px;
    align-items: start;
  }

  .cv-contact {
    text-align: left;
  }

  .cv-entry-head {
    display: block;
  }

  .cv-loc {
    margin-top: 2px;
    white-space: normal;
  }

  .cv-block h2 {
    font-size: 1.82rem;
  }
}

@media (max-width: 760px) {
  .shell {
    width: min(var(--shell), calc(100% - 30px));
  }

  .header-inner {
    min-height: 64px;
    padding: 8px 0;
  }

  .site-nav {
    gap: 14px;
  }

  .cv-name {
    font-size: clamp(1.92rem, 11vw, 2.5rem);
  }

  .cv-exp-item {
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .cv-year {
    margin-top: 0;
    font-weight: 600;
  }

  .hero {
    margin-bottom: 40px;
  }

  .taxonomy-list {
    grid-template-columns: 1fr;
  }

  .card-title {
    font-size: clamp(1.35rem, 7vw, 1.9rem);
  }

  .load-more-btn {
    min-width: 164px;
  }

  .image-lightbox {
    padding: 14px;
  }

  .image-lightbox-close {
    top: 10px;
    right: 10px;
  }
}