:root {
  color-scheme: light;
  --bg: #f7f5f0;
  --bg-strong: #fffdf8;
  --surface: rgba(255, 253, 248, 0.66);
  --surface-solid: #fffdf8;
  --ink: #1c1f1b;
  --ink-soft: #3d423c;
  --muted: #686e66;
  --faint: #868c83;
  --line: #e4e0d5;
  --line-strong: #d3cec0;
  --accent: #2e6b51;
  --accent-strong: #23543f;
  --accent-soft: rgba(46, 107, 81, 0.08);
  --accent-line: rgba(46, 107, 81, 0.24);
  --header-bg: rgba(247, 245, 240, 0.82);
  --pre-bg: #f0ede5;
  --pre-border: #e1ddd1;
  --inline-code-bg: rgba(46, 107, 81, 0.07);
  --selection: rgba(46, 107, 81, 0.18);
  --shadow: 0 24px 70px -40px rgba(28, 31, 27, 0.35);
  --shadow-soft: 0 8px 30px -18px rgba(28, 31, 27, 0.25);
  --header-height: 68px;
  --shell-width: 1120px;
  --article-width: 760px;
  --font-sans: "MiSans", "Inter", "SF Pro Text", -apple-system, BlinkMacSystemFont,
    "Segoe UI", "PingFang SC", "HarmonyOS Sans SC", "Hiragino Sans GB", "Microsoft YaHei",
    sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", ui-monospace, "Cascadia Code",
    Consolas, "Liberation Mono", monospace;
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0f1110;
  --bg-strong: #151814;
  --surface: rgba(22, 26, 22, 0.7);
  --surface-solid: #151814;
  --ink: #e8e6df;
  --ink-soft: #c6c8c1;
  --muted: #a0a69d;
  --faint: #7e847b;
  --line: #252a24;
  --line-strong: #363c32;
  --accent: #8acbaa;
  --accent-strong: #a9dfc3;
  --accent-soft: rgba(138, 203, 170, 0.09);
  --accent-line: rgba(138, 203, 170, 0.22);
  --header-bg: rgba(15, 17, 16, 0.82);
  --pre-bg: #0a0c0a;
  --pre-border: #252b24;
  --inline-code-bg: rgba(138, 203, 170, 0.08);
  --selection: rgba(138, 203, 170, 0.22);
  --shadow: 0 24px 70px -40px rgba(0, 0, 0, 0.85);
  --shadow-soft: 0 8px 30px -18px rgba(0, 0, 0, 0.65);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 28px);
  -webkit-text-size-adjust: 100%;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  margin: 0;
  background-color: var(--bg);
  background-image: radial-gradient(
    900px 620px at 88% -12%,
    var(--accent-soft),
    transparent 65%
  );
  background-repeat: no-repeat;
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background-color 0.25s ease, color 0.25s ease;
}

body > main {
  flex: 1 0 auto;
}

::selection {
  background: var(--selection);
  color: var(--ink);
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input {
  font: inherit;
}

button {
  color: inherit;
}

img,
svg {
  display: block;
}

img {
  max-width: 100%;
  height: auto;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 200;
  padding: 10px 16px;
  border-radius: 8px;
  background: var(--ink);
  color: var(--bg);
  font-size: 13px;
  transform: translateY(-160%);
  transition: transform 0.18s ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.shell {
  width: min(100% - 48px, var(--shell-width));
  margin-inline: auto;
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: var(--header-bg);
  border-bottom: 1px solid transparent;
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  backdrop-filter: blur(18px) saturate(1.4);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.25s ease;
}

.site-header.is-scrolled {
  border-bottom-color: var(--line);
  box-shadow: var(--shadow-soft);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 28px;
  height: var(--header-height);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: var(--ink);
  color: var(--bg);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 19px;
  font-style: italic;
  line-height: 1;
  padding-bottom: 2px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.brand:hover .brand-mark {
  background: var(--accent);
  color: var(--bg-strong);
}

.brand-name {
  font-size: 15px;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--muted);
  font-size: 13.5px;
  transition: color 0.18s ease, background-color 0.18s ease;
}

.nav-link:hover {
  color: var(--ink);
  background: var(--accent-soft);
}

.nav-link.is-active {
  color: var(--ink);
}

.nav-link.is-active::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 50%;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--accent);
  transform: translateX(-50%);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
}

.search-trigger {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 36px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: transparent;
  color: var(--muted);
  font-size: 12.5px;
  cursor: pointer;
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.search-trigger svg {
  width: 16px;
  height: 16px;
}

.search-trigger:hover {
  color: var(--ink);
  border-color: var(--line-strong);
  background: var(--surface);
}

.search-trigger-kbd {
  padding: 1px 5px;
  border: 1px solid var(--line);
  border-radius: 5px;
  font-family: var(--font-mono);
  font-size: 9.5px;
  color: var(--faint);
  letter-spacing: 0.02em;
}

.icon-button {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 10px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: color 0.18s ease, background-color 0.18s ease,
    border-color 0.18s ease;
}

.icon-button svg {
  width: 18px;
  height: 18px;
}

.icon-button:hover {
  color: var(--ink);
  background: var(--accent-soft);
}

.theme-icon {
  display: none;
}

[data-theme-mode="auto"] .theme-icon[data-theme-icon="auto"],
[data-theme-mode="light"] .theme-icon[data-theme-icon="light"],
[data-theme-mode="dark"] .theme-icon[data-theme-icon="dark"] {
  display: block;
}

.eye-care-hint {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 300;
  display: flex;
  align-items: flex-start;
  gap: 9px;
  max-width: min(264px, calc(100vw - 24px));
  padding: 11px 14px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  background: var(--ink);
  color: var(--bg-strong);
  font-size: 12.5px;
  line-height: 1.6;
  box-shadow: 0 18px 44px -22px rgba(0, 0, 0, 0.55);
  opacity: 0;
  transform: translateY(-4px) scale(0.98);
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.eye-care-hint::before {
  content: "";
  flex: 0 0 auto;
  width: 7px;
  height: 7px;
  margin-top: 6px;
  border-radius: 50%;
  background: var(--bg-strong);
  box-shadow: 0 0 0 3px var(--accent-line);
}

.eye-care-hint.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.eye-care-hint.is-mobile {
  top: auto;
  right: auto;
  bottom: calc(20px + env(safe-area-inset-bottom, 0px));
  left: 50%;
  width: max-content;
  max-width: min(340px, calc(100vw - 32px));
  transform: translate(-50%, 8px) scale(0.98);
}

.eye-care-hint.is-mobile.is-visible {
  transform: translate(-50%, 0) scale(1);
}

.nav-toggle {
  display: none;
}

.nav-toggle-close {
  display: none;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-open {
  display: none;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-close {
  display: block;
}

.mobile-panel {
  position: absolute;
  top: 100%;
  right: 0;
  left: 0;
  padding: 8px 24px 20px;
  border-bottom: 1px solid var(--line);
  background: var(--bg-strong);
  box-shadow: var(--shadow);
  animation: fade-up 0.18s ease both;
}

.mobile-panel[hidden] {
  display: none;
}

.mobile-nav {
  display: grid;
}

.mobile-nav-link {
  padding: 14px 2px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 15px;
}

.mobile-nav-link.is-active {
  color: var(--accent);
}

.mobile-panel-foot {
  display: flex;
  gap: 22px;
  padding-top: 18px;
}

.mobile-panel-foot a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--muted);
  font-size: 12.5px;
}

.mobile-panel-foot svg {
  width: 15px;
  height: 15px;
}

/* Footer */

.site-footer {
  margin-top: clamp(88px, 11vw, 136px);
  border-top: 1px solid var(--line);
  padding: 52px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.55fr) minmax(0, 0.55fr);
  gap: 40px;
}

.footer-brand p {
  max-width: 30ch;
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.8;
}

.footer-heading {
  margin: 4px 0 10px;
  font-family: var(--font-mono);
  font-size: 9.5px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--faint);
}

.footer-col a {
  display: block;
  width: fit-content;
  padding: 5px 0;
  color: var(--muted);
  font-size: 13.5px;
  transition: color 0.16s ease;
}

.footer-col a:hover {
  color: var(--accent);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 24px;
  margin-top: 44px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.01em;
}

.footer-bottom p {
  margin: 0;
}

/* Home hero */

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(300px, 0.85fr);
  align-items: center;
  gap: clamp(40px, 7vw, 84px);
  padding-top: clamp(64px, 9vw, 112px);
  padding-bottom: 52px;
}

.hero-main {
  animation: fade-up 0.6s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.hero-title {
  max-width: 12ch;
  margin: 22px 0 0;
  font-size: clamp(42px, 6.4vw, 72px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.055em;
  text-wrap: balance;
}

.hero-title .accent {
  display: block;
  color: var(--accent);
}

.hero-desc {
  max-width: 48ch;
  margin: 26px 0 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 42px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  cursor: pointer;
  transition: transform 0.18s ease, background-color 0.18s ease,
    border-color 0.18s ease, box-shadow 0.18s ease, color 0.18s ease;
}

.button svg {
  width: 15px;
  height: 15px;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  background: var(--ink);
  color: var(--bg);
  box-shadow: 0 10px 24px -16px rgba(0, 0, 0, 0.5);
}

.button-primary:hover {
  background: var(--accent);
  color: var(--bg-strong);
}

.button-ghost {
  border-color: var(--line);
  color: var(--ink-soft);
  background: transparent;
}

.button-ghost:hover {
  border-color: var(--accent-line);
  background: var(--accent-soft);
  color: var(--accent);
}

.hero-card {
  position: relative;
  overflow: hidden;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--surface);
  box-shadow: var(--shadow);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  animation: fade-up 0.6s 0.08s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}

.hero-card::before {
  content: "";
  position: absolute;
  top: -90px;
  right: -70px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: var(--accent-soft);
  filter: blur(4px);
  pointer-events: none;
}

.hero-card-head {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero-card-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
}

.hero-quote {
  position: relative;
  margin: 20px 0 0;
  color: var(--ink-soft);
  font-size: 16.5px;
  font-weight: 500;
  line-height: 1.85;
  letter-spacing: 0.01em;
}

.stats {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin: 26px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.stats div {
  margin: 0;
}

.stats dt {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.1em;
}

.stats dd {
  margin: 7px 0 0;
  font-family: var(--font-mono);
  font-size: 25px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.05em;
  color: var(--ink);
}

.hero-updated {
  position: relative;
  margin: 22px 0 0;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.02em;
}

.hero-updated time {
  color: var(--muted);
}

/* Topics */

.topic-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-top: 15px;
  padding-bottom: 15px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  animation: fade-in 0.7s 0.14s ease both;
}

.topic-label {
  flex-shrink: 0;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.topic-list {
  display: flex;
  flex: 1;
  flex-wrap: wrap;
  gap: 6px;
}

.topic {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 10px;
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--muted);
  font-size: 12px;
  transition: color 0.16s ease, background-color 0.16s ease,
    border-color 0.16s ease;
}

.topic span {
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 9.5px;
}

.topic:hover {
  color: var(--accent);
  background: var(--accent-soft);
  border-color: var(--accent-line);
}

.topic-all {
  display: inline-flex;
  flex-shrink: 0;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 11.5px;
  transition: color 0.16s ease;
}

.topic-all:hover {
  color: var(--accent);
}

.topic-all svg {
  width: 13px;
  height: 13px;
}

/* Post list */

.section {
  padding-top: clamp(56px, 7vw, 84px);
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 12px;
}

.section-title {
  margin: 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.more-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.02em;
  transition: color 0.16s ease;
}

.more-link:hover {
  color: var(--accent);
}

.more-link svg {
  width: 12px;
  height: 12px;
}

.post-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.post-item {
  border-bottom: 1px solid var(--line);
  animation: fade-up 0.45s cubic-bezier(0.2, 0.7, 0.2, 1) both;
  animation-delay: calc(var(--i, 0) * 35ms + 60ms);
}

.post-link {
  display: grid;
  grid-template-columns: 108px minmax(0, 1fr) 20px;
  align-items: start;
  gap: 28px;
  padding: 27px 0;
  border-radius: 8px;
}

.post-date {
  padding-top: 6px;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.post-title {
  margin: 0;
  color: var(--ink);
  font-size: clamp(19px, 2.3vw, 22px);
  font-weight: 600;
  line-height: 1.48;
  letter-spacing: -0.022em;
  transition: color 0.18s ease;
}

.post-excerpt {
  display: -webkit-box;
  max-width: 66ch;
  margin: 8px 0 0;
  overflow: hidden;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.8;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 13px;
}

.category-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--muted);
  font-size: 11.5px;
  line-height: 1.4;
  transition: color 0.16s ease;
}

.category-badge::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: hsl(var(--hue, 150) 32% 43%);
}

[data-theme="dark"] .category-badge::before {
  background: hsl(var(--hue, 150) 36% 63%);
}

a.category-badge:hover {
  color: var(--accent);
}

.meta-item,
.meta-sep {
  color: var(--faint);
  font-size: 11.5px;
}

.post-arrow {
  margin-top: 6px;
  color: var(--faint);
  transition: transform 0.2s ease, color 0.2s ease;
}

.post-arrow svg {
  width: 17px;
  height: 17px;
}

.post-link:hover .post-title {
  color: var(--accent);
}

.post-link:hover .post-arrow {
  color: var(--accent);
  transform: translate(3px, -3px);
}

.post-link:focus-visible {
  outline-offset: 6px;
}

/* Page hero and archive */

.page-hero {
  padding-top: clamp(60px, 8vw, 96px);
  padding-bottom: 40px;
  border-bottom: 1px solid var(--line);
  animation: fade-up 0.5s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}

.page-title {
  margin: 18px 0 0;
  font-size: clamp(38px, 5vw, 56px);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.05em;
  text-wrap: balance;
}

.page-desc {
  max-width: 62ch;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.85;
}

.page-desc a,
.eyebrow a {
  color: var(--muted);
  transition: color 0.16s ease;
}

.page-desc a:hover,
.eyebrow a:hover {
  color: var(--accent);
}

.archive-body {
  padding-top: 10px;
}

.archive-group {
  display: grid;
  grid-template-columns: 132px minmax(0, 1fr);
  gap: 28px;
  padding: 32px 0;
  border-bottom: 1px solid var(--line);
}

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

.archive-year {
  position: sticky;
  top: calc(var(--header-height) + 28px);
  align-self: start;
  margin: 0;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -0.02em;
}

.archive-year span {
  display: block;
  margin-top: 5px;
  color: var(--faint);
  font-size: 9.5px;
  font-weight: 400;
  letter-spacing: 0.06em;
}

.archive-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.archive-item a {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 18px;
  padding: 10px 0;
}

.archive-item time {
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 10.5px;
}

.archive-title {
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.6;
  transition: color 0.16s ease;
}

.archive-category {
  color: var(--faint);
  font-size: 11px;
}

.archive-item a:hover .archive-title {
  color: var(--accent);
}

/* Tags and categories */

.term-cloud-section {
  padding-top: 48px;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink-soft);
  font-size: 13px;
  transition: transform 0.16s ease, color 0.16s ease,
    border-color 0.16s ease, background-color 0.16s ease;
}

.tag-chip span {
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 10px;
}

.tag-chip:hover {
  transform: translateY(-1px);
  border-color: var(--accent-line);
  background: var(--accent-soft);
  color: var(--accent);
}

.tag-chip-small {
  padding: 5px 10px;
  font-size: 11.5px;
}

.term-hero .page-title {
  display: flex;
  align-items: center;
}

.term-prefix {
  margin-right: 4px;
  color: var(--faint);
  font-weight: 400;
}

.category-title-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 14px;
  border-radius: 50%;
  background: hsl(var(--hue, 150) 32% 43%);
}

[data-theme="dark"] .category-title-dot {
  background: hsl(var(--hue, 150) 36% 63%);
}

.term-posts {
  padding-top: 12px;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 14px;
  padding-top: 48px;
}

.category-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 180px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface);
  transition: transform 0.18s ease, border-color 0.18s ease,
    box-shadow 0.18s ease, background-color 0.18s ease;
}

.category-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent-line);
  background: var(--bg-strong);
  box-shadow: var(--shadow-soft);
}

.category-card-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: hsl(var(--hue, 150) 32% 43%);
}

[data-theme="dark"] .category-card-dot {
  background: hsl(var(--hue, 150) 36% 63%);
}

.category-card h2 {
  margin: 16px 0 0;
  font-size: 20px;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: -0.025em;
}

.category-card p {
  margin: 6px 0 0;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 10.5px;
}

.category-card-latest {
  display: -webkit-box;
  margin-top: auto;
  padding-top: 18px;
  overflow: hidden;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.category-card-arrow {
  position: absolute;
  top: 22px;
  right: 22px;
  color: var(--faint);
  transition: transform 0.18s ease, color 0.18s ease;
}

.category-card-arrow svg {
  width: 16px;
  height: 16px;
}

.category-card:hover .category-card-arrow {
  color: var(--accent);
  transform: translate(2px, -2px);
}

/* About */

.about-hero {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
}

.about-avatar {
  display: grid;
  place-items: center;
  flex-shrink: 0;
  width: 96px;
  height: 96px;
  padding-bottom: 8px;
  border-radius: 28px;
  background: var(--ink);
  color: var(--bg);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 48px;
  font-style: italic;
  line-height: 1;
  box-shadow: var(--shadow-soft);
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(240px, 0.6fr);
  align-items: start;
  gap: clamp(40px, 7vw, 80px);
  padding-top: 48px;
}

.about-prose > blockquote:first-child {
  margin: 0 0 34px;
  padding: 0;
  border: 0;
  background: none;
  color: var(--ink);
  font-size: 19px;
  font-weight: 500;
  line-height: 1.95;
  letter-spacing: 0.01em;
}

.about-card {
  position: sticky;
  top: calc(var(--header-height) + 28px);
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}

.about-card-name {
  margin: 0;
  font-size: 18px;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.about-card-role {
  margin: 6px 0 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin: 22px 0;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.about-stats dt {
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
}

.about-stats dd {
  margin: 5px 0 0;
  font-family: var(--font-mono);
  font-size: 21px;
  line-height: 1;
  letter-spacing: -0.05em;
}

.about-card-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.about-card-links a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--muted);
  font-size: 12px;
  transition: color 0.16s ease, border-color 0.16s ease,
    background-color 0.16s ease;
}

.about-card-links a:hover {
  border-color: var(--accent-line);
  background: var(--accent-soft);
  color: var(--accent);
}

.about-card-links svg {
  width: 14px;
  height: 14px;
}

.about-card-foot {
  margin: 20px 0 0;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.08em;
}

/* 404 */

.not-found {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 62vh;
  padding-top: 72px;
  padding-bottom: 72px;
}

.not-found-code {
  margin: 24px 0 -14px;
  color: transparent;
  font-family: var(--font-mono);
  font-size: clamp(96px, 19vw, 210px);
  font-weight: 600;
  line-height: 0.9;
  letter-spacing: -0.08em;
  -webkit-text-stroke: 1px var(--line-strong);
}

.not-found h1 {
  margin: 0;
  font-size: clamp(30px, 4vw, 44px);
  letter-spacing: -0.04em;
}

.not-found-desc {
  max-width: 46ch;
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.85;
}

/* Article */

.reading-progress {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 70;
  height: 2px;
  pointer-events: none;
}

.reading-progress span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--accent);
  transition: width 0.08s linear;
}

.article-shell {
  padding-top: 42px;
}

.article-shell.has-toc {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 206px;
  gap: clamp(40px, 6vw, 76px);
  max-width: 1060px;
}

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

.article-shell.no-toc .article-main {
  max-width: var(--article-width);
  margin-inline: auto;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 32px;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.02em;
}

.breadcrumb a {
  color: var(--muted);
  transition: color 0.16s ease;
}

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

.article-header {
  padding-bottom: 34px;
  border-bottom: 1px solid var(--line);
  animation: fade-up 0.5s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}

.article-kicker {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.01em;
}

.article-title {
  max-width: 20ch;
  margin: 18px 0 0;
  font-size: clamp(33px, 4.6vw, 52px);
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: -0.048em;
  text-wrap: balance;
}

.article-main > .prose {
  padding-top: 38px;
}

.article-footer {
  margin-top: 60px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 7px;
}

.article-tags-label {
  margin-right: 4px;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.post-nav {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
  margin-top: 36px;
}

.post-nav-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  transition: border-color 0.16s ease, background-color 0.16s ease,
    transform 0.16s ease;
}

.post-nav-card:hover {
  transform: translateY(-1px);
  border-color: var(--accent-line);
  background: var(--bg-strong);
}

.post-nav-label {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.04em;
}

.post-nav-label svg {
  width: 13px;
  height: 13px;
}

.post-nav-title {
  color: var(--ink-soft);
  font-size: 13.5px;
  font-weight: 500;
  line-height: 1.6;
}

.post-nav-newer {
  text-align: right;
}

.post-nav-newer .post-nav-label {
  justify-content: flex-end;
}

.author-card {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 36px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
}

.author-mark {
  display: grid;
  place-items: center;
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  padding-bottom: 2px;
  border-radius: 11px;
  background: var(--ink);
  color: var(--bg);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 24px;
  font-style: italic;
  line-height: 1;
}

.author-info {
  min-width: 0;
}

.author-name {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
}

.author-desc {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.author-link {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  margin-left: auto;
  border-radius: 8px;
  color: var(--faint);
  transition: color 0.16s ease, background-color 0.16s ease;
}

.author-link:hover {
  background: var(--accent-soft);
  color: var(--accent);
}

.author-link svg {
  width: 17px;
  height: 17px;
}

.back-home {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 26px;
  color: var(--muted);
  font-size: 12px;
  transition: color 0.16s ease;
}

.back-home:hover {
  color: var(--accent);
}

.back-home svg {
  width: 14px;
  height: 14px;
}

.toc-aside {
  position: sticky;
  top: calc(var(--header-height) + 32px);
  align-self: start;
  max-height: calc(100vh - var(--header-height) - 64px);
  overflow-y: auto;
  padding: 6px 0 20px;
  scrollbar-width: thin;
}

.toc-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 0 0 12px;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.toc-title span {
  color: var(--faint);
  font-size: 9.5px;
}

.toc-list {
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--line);
  list-style: none;
}

.toc-list a {
  display: block;
  margin-left: -1px;
  padding: 5px 0 5px 14px;
  border-left: 1px solid transparent;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.6;
  transition: color 0.16s ease, border-color 0.16s ease;
}

.toc-list .toc-depth-3 a {
  padding-left: 26px;
  color: var(--faint);
  font-size: 11.5px;
}

.toc-list a:hover {
  color: var(--ink);
}

.toc-list a.is-active {
  border-left-color: var(--accent);
  color: var(--accent);
}

.toc-mobile {
  display: none;
  margin-bottom: 22px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
}

.toc-mobile summary {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 13px 0;
  color: var(--ink-soft);
  font-size: 12.5px;
  cursor: pointer;
  list-style: none;
}

.toc-mobile summary::-webkit-details-marker {
  display: none;
}

.toc-mobile summary svg {
  width: 14px;
  height: 14px;
  color: var(--faint);
}

.toc-mobile-count {
  margin-left: auto;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 10px;
}

.toc-mobile[open] summary {
  border-bottom: 1px solid var(--line);
}

.toc-mobile-nav {
  padding: 10px 0 14px;
}

.toc-mobile .toc-list {
  border-left: 0;
}

.toc-mobile .toc-list a {
  padding-left: 0;
  border-left: 0;
}

.toc-mobile .toc-list .toc-depth-3 a {
  padding-left: 14px;
}

.to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 40;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--bg-strong);
  color: var(--muted);
  box-shadow: var(--shadow-soft);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease, color 0.16s ease,
    border-color 0.16s ease;
}

.to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.to-top:hover {
  border-color: var(--accent-line);
  color: var(--accent);
}

.to-top svg {
  width: 17px;
  height: 17px;
}

/* Prose */

.prose {
  color: var(--ink-soft);
  font-size: 16.5px;
  line-height: 1.92;
  overflow-wrap: break-word;
}

.prose > *:first-child {
  margin-top: 0;
}

.prose > *:last-child {
  margin-bottom: 0;
}

.prose p,
.prose ul,
.prose ol,
.prose blockquote,
.prose pre,
.prose .table-wrap,
.prose figure,
.prose dl,
.prose details {
  margin: 1.3em 0;
}

.prose h1,
.prose h2,
.prose h3,
.prose h4,
.prose h5,
.prose h6 {
  color: var(--ink);
  font-weight: 650;
  line-height: 1.42;
  letter-spacing: -0.025em;
  scroll-margin-top: calc(var(--header-height) + 28px);
}

.prose h1 {
  margin: 2.3em 0 0.7em;
  font-size: 1.85em;
}

.prose h2 {
  position: relative;
  margin: 2.5em 0 0.75em;
  font-size: 1.52em;
}

.prose h2::before {
  content: "";
  position: absolute;
  top: -16px;
  left: 0;
  width: 26px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent);
  opacity: 0.7;
}

.prose h3 {
  margin: 2.05em 0 0.6em;
  font-size: 1.22em;
}

.prose h4 {
  margin: 1.7em 0 0.5em;
  font-size: 1.05em;
}

.heading-anchor {
  margin-left: 9px;
  color: var(--faint);
  font-size: 0.78em;
  font-weight: 400;
  text-decoration: none;
  opacity: 0;
  transition: opacity 0.16s ease, color 0.16s ease;
}

.prose h2:hover .heading-anchor,
.prose h3:hover .heading-anchor,
.prose h4:hover .heading-anchor,
.heading-anchor:focus-visible {
  opacity: 1;
}

.heading-anchor:hover {
  color: var(--accent);
}

.prose a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: var(--accent-line);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: text-decoration-color 0.16s ease, color 0.16s ease;
}

.prose a:hover {
  color: var(--accent-strong);
  text-decoration-color: currentColor;
}

.prose strong {
  color: var(--ink);
  font-weight: 650;
}

.prose em {
  font-style: italic;
}

.prose ul,
.prose ol {
  padding-left: 1.5em;
}

.prose li + li {
  margin-top: 0.35em;
}

.prose li > ul,
.prose li > ol {
  margin-top: 0.35em;
  margin-bottom: 0.35em;
}

.prose blockquote {
  padding: 15px 20px;
  border-left: 2px solid var(--accent);
  border-radius: 0 10px 10px 0;
  background: linear-gradient(90deg, var(--accent-soft), transparent 80%);
  color: var(--muted);
}

.prose blockquote p {
  margin: 0.5em 0;
}

.prose blockquote > *:first-child {
  margin-top: 0;
}

.prose blockquote > *:last-child {
  margin-bottom: 0;
}

.prose code {
  padding: 0.16em 0.4em;
  border: 1px solid var(--accent-line);
  border-radius: 5px;
  background: var(--inline-code-bg);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.84em;
  overflow-wrap: break-word;
}

.prose kbd {
  padding: 2px 6px;
  border: 1px solid var(--line-strong);
  border-bottom-width: 2px;
  border-radius: 5px;
  background: var(--bg-strong);
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 0.8em;
}

.prose hr {
  height: 1px;
  margin: 2.6em 0;
  border: 0;
  background: var(--line);
}

.prose img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 1.7em auto;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg-strong);
  cursor: zoom-in;
  transition: border-color 0.16s ease, opacity 0.16s ease;
}

.prose img:hover {
  border-color: var(--line-strong);
}

.prose a img {
  margin: 1em 0;
}

.prose figure {
  margin: 1.8em 0;
}

.prose figure img {
  margin: 0 auto;
}

.prose figcaption {
  margin-top: 10px;
  color: var(--faint);
  font-size: 12px;
  line-height: 1.6;
  text-align: center;
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  line-height: 1.65;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  -webkit-overflow-scrolling: touch;
}

.prose th,
.prose td {
  padding: 9px 13px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.prose th {
  background: var(--bg-strong);
  color: var(--ink);
  font-weight: 600;
  white-space: nowrap;
}

.prose tr:last-child td {
  border-bottom: 0;
}

.prose td img,
.prose th img {
  display: inline-block;
  margin: 0;
  border-radius: 4px;
}

.prose details {
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
}

.prose summary {
  color: var(--ink);
  cursor: pointer;
}

/* Code blocks */

.prose > pre {
  margin: 1.7em 0;
}

.prose pre {
  margin: 0;
  padding: 17px 19px;
  overflow-x: auto;
  border: 1px solid var(--pre-border);
  border-radius: 10px;
  background: var(--pre-bg);
  font-size: 13px;
  line-height: 1.72;
  tab-size: 2;
  -webkit-overflow-scrolling: touch;
}

.prose pre code {
  display: block;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--ink-soft);
  font-size: inherit;
  overflow-wrap: normal;
  white-space: pre;
}

.code-block {
  margin: 1.7em 0;
  overflow: hidden;
  border: 1px solid var(--pre-border);
  border-radius: 11px;
  background: var(--pre-bg);
}

.code-block pre {
  margin: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.code-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 7px 13px;
  border-bottom: 1px solid var(--pre-border);
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.code-copy {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 6px;
  border: 0;
  border-radius: 5px;
  background: transparent;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.04em;
  text-transform: none;
  cursor: pointer;
  transition: color 0.16s ease, background-color 0.16s ease;
}

.code-copy svg {
  width: 12px;
  height: 12px;
}

.code-copy:hover {
  background: var(--accent-soft);
  color: var(--accent);
}

.code-copy.is-copied {
  color: var(--accent);
}

/* Syntax highlighting */

.hljs-comment,
.hljs-quote {
  color: #8a9088;
  font-style: italic;
}

.hljs-keyword,
.hljs-selector-tag,
.hljs-subst {
  color: #9a3f5a;
}

.hljs-string,
.hljs-doctag,
.hljs-regexp,
.hljs-addition {
  color: #2f6b51;
}

.hljs-number,
.hljs-literal,
.hljs-variable,
.hljs-template-variable,
.hljs-type,
.hljs-params {
  color: #a15a22;
}

.hljs-title,
.hljs-section,
.hljs-title.function_,
.hljs-name {
  color: #305f9f;
}

.hljs-attr,
.hljs-attribute,
.hljs-selector-id,
.hljs-selector-class {
  color: #7a4b9e;
}

.hljs-built_in,
.hljs-symbol,
.hljs-bullet,
.hljs-link {
  color: #2f6b51;
}

.hljs-meta,
.hljs-meta .hljs-keyword {
  color: #7a4b9e;
}

.hljs-deletion {
  color: #b0443c;
}

.hljs-emphasis {
  font-style: italic;
}

.hljs-strong {
  font-weight: 700;
}

[data-theme="dark"] .hljs-comment,
[data-theme="dark"] .hljs-quote {
  color: #737b71;
}

[data-theme="dark"] .hljs-keyword,
[data-theme="dark"] .hljs-selector-tag,
[data-theme="dark"] .hljs-subst {
  color: #e0a0b4;
}

[data-theme="dark"] .hljs-string,
[data-theme="dark"] .hljs-doctag,
[data-theme="dark"] .hljs-regexp,
[data-theme="dark"] .hljs-addition {
  color: #9fd7b7;
}

[data-theme="dark"] .hljs-number,
[data-theme="dark"] .hljs-literal,
[data-theme="dark"] .hljs-variable,
[data-theme="dark"] .hljs-template-variable,
[data-theme="dark"] .hljs-type,
[data-theme="dark"] .hljs-params {
  color: #e6be8b;
}

[data-theme="dark"] .hljs-title,
[data-theme="dark"] .hljs-section,
[data-theme="dark"] .hljs-title.function_,
[data-theme="dark"] .hljs-name {
  color: #9cb9e8;
}

[data-theme="dark"] .hljs-attr,
[data-theme="dark"] .hljs-attribute,
[data-theme="dark"] .hljs-selector-id,
[data-theme="dark"] .hljs-selector-class {
  color: #cbb2e6;
}

[data-theme="dark"] .hljs-built_in,
[data-theme="dark"] .hljs-symbol,
[data-theme="dark"] .hljs-bullet,
[data-theme="dark"] .hljs-link {
  color: #9fd7b7;
}

[data-theme="dark"] .hljs-meta,
[data-theme="dark"] .hljs-meta .hljs-keyword {
  color: #cbb2e6;
}

[data-theme="dark"] .hljs-deletion {
  color: #e59a93;
}

/* Search */

.search-dialog {
  width: min(680px, calc(100vw - 32px));
  max-width: none;
  margin: 11vh auto auto;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--ink);
}

.search-dialog::backdrop {
  background: rgba(12, 14, 12, 0.52);
  -webkit-backdrop-filter: blur(5px);
  backdrop-filter: blur(5px);
}

.search-dialog[open] {
  animation: fade-up 0.18s ease both;
}

.search-panel {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--bg-strong);
  box-shadow: 0 40px 100px -30px rgba(0, 0, 0, 0.55);
}

.search-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 18px;
  border-bottom: 1px solid var(--line);
}

.search-head > svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--faint);
}

.search-head input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: transparent;
  color: var(--ink);
  font-size: 16px;
  outline: none;
}

.search-head input::placeholder {
  color: var(--faint);
}

.search-head input::-webkit-search-cancel-button {
  display: none;
}

.search-esc {
  flex-shrink: 0;
  padding: 3px 7px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: transparent;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 9.5px;
  cursor: pointer;
}

.search-esc:hover {
  color: var(--ink);
  border-color: var(--line-strong);
}

.search-body {
  max-height: min(58vh, 440px);
  padding: 8px;
  overflow-y: auto;
}

.search-hint,
.search-empty,
.search-loading {
  margin: 0;
  padding: 34px 20px;
  color: var(--muted);
  font-size: 13.5px;
  text-align: center;
}

.search-popular {
  padding: 14px 10px 20px;
}

.search-popular-label {
  margin: 0 0 12px;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.search-popular-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.search-popular-tag {
  padding: 6px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font-size: 12px;
  cursor: pointer;
  transition: color 0.16s ease, border-color 0.16s ease,
    background-color 0.16s ease;
}

.search-popular-tag:hover {
  border-color: var(--accent-line);
  background: var(--accent-soft);
  color: var(--accent);
}

.search-result {
  display: block;
  padding: 13px 15px;
  border-radius: 10px;
}

.search-result:hover,
.search-result.is-active {
  background: var(--accent-soft);
}

.search-result-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
}

.search-result-title {
  color: var(--ink);
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1.5;
}

.search-result-top time {
  flex-shrink: 0;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 9.5px;
}

.search-result-snippet {
  display: -webkit-box;
  margin: 5px 0 0;
  overflow: hidden;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.7;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.search-result-meta {
  margin-top: 7px;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.02em;
}

.search-result mark {
  padding: 0 1px;
  border-radius: 2px;
  background: var(--accent-soft);
  color: var(--accent);
}

.search-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  padding: 10px 18px;
  border-top: 1px solid var(--line);
  color: var(--faint);
  font-size: 10px;
}

.search-foot kbd {
  padding: 1px 4px;
  margin-right: 3px;
  border: 1px solid var(--line);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 9px;
}

/* Lightbox */

.lightbox {
  max-width: 100vw;
  max-height: 100vh;
  padding: 0;
  border: 0;
  background: transparent;
  overflow: visible;
}

.lightbox::backdrop {
  background: rgba(8, 10, 8, 0.88);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}

.lightbox figure {
  margin: 0;
  text-align: center;
}

.lightbox img {
  display: inline-block;
  max-width: 92vw;
  max-height: 86vh;
  width: auto;
  border-radius: 8px;
  box-shadow: 0 30px 100px -20px rgba(0, 0, 0, 0.8);
}

.lightbox figcaption {
  margin-top: 12px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 12px;
}

.lightbox-close {
  position: fixed;
  top: 18px;
  right: 18px;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  cursor: pointer;
}

.lightbox-close svg {
  width: 18px;
  height: 18px;
}

/* Responsive */

@media (max-width: 1080px) {
  .article-shell.has-toc {
    display: block;
    max-width: var(--article-width);
    margin-inline: auto;
  }

  .toc-aside {
    display: none;
  }

  .toc-mobile {
    display: block;
  }

  .article-main > .prose {
    padding-top: 0;
  }

  .toc-mobile + .prose {
    padding-top: 0;
  }
}

@media (max-width: 960px) {
  .hero {
    grid-template-columns: minmax(0, 1fr);
    gap: 36px;
    padding-top: clamp(56px, 8vw, 84px);
  }

  .hero-card {
    max-width: 480px;
  }

  .about-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .about-card {
    position: static;
    max-width: 480px;
  }
}

@media (max-width: 900px) {
  .primary-nav {
    display: none;
  }

  .nav-toggle {
    display: grid;
  }

  .header-inner {
    gap: 16px;
  }
}

@media (max-width: 760px) {
  .search-trigger-kbd {
    display: none;
  }

  .footer-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .archive-group {
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
    padding: 26px 0;
  }

  .archive-year {
    position: static;
    display: flex;
    align-items: baseline;
    gap: 8px;
  }

  .archive-year span {
    display: inline;
    margin: 0;
  }

  .about-hero {
    align-items: center;
  }

  .about-avatar {
    width: 72px;
    height: 72px;
    padding-bottom: 6px;
    border-radius: 20px;
    font-size: 36px;
  }
}

@media (max-width: 640px) {
  .shell {
    width: min(100% - 32px, var(--shell-width));
  }

  .header-inner {
    height: 62px;
  }

  .search-trigger {
    width: 36px;
    padding: 0;
    justify-content: center;
  }

  .search-trigger-label {
    display: none;
  }

  .hero {
    padding-top: 52px;
    padding-bottom: 40px;
  }

  .hero-title {
    font-size: clamp(38px, 11vw, 52px);
  }

  .hero-desc {
    font-size: 15px;
  }

  .hero-card {
    padding: 22px;
  }

  .topic-bar {
    flex-wrap: wrap;
    gap: 8px 12px;
  }

  .topic-list {
    order: 3;
    flex-basis: 100%;
  }

  .topic-all {
    margin-left: auto;
  }

  .post-link {
    grid-template-columns: minmax(0, 1fr) 20px;
    gap: 0 12px;
    padding: 23px 0;
  }

  .post-date {
    grid-row: 1;
    grid-column: 1;
    margin-bottom: 7px;
    padding-top: 0;
  }

  .post-main {
    grid-row: 2;
    grid-column: 1;
  }

  .post-arrow {
    grid-row: 1 / span 2;
    grid-column: 2;
    align-self: center;
    margin-top: 0;
  }

  .post-excerpt {
    -webkit-line-clamp: 3;
  }

  .page-hero {
    padding-top: 52px;
    padding-bottom: 32px;
  }

  .page-title {
    font-size: clamp(34px, 9vw, 44px);
  }

  .archive-item a {
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 12px;
    padding: 9px 0;
  }

  .archive-category {
    display: none;
  }

  .article-shell {
    padding-top: 28px;
  }

  .breadcrumb {
    margin-bottom: 24px;
  }

  .article-header {
    padding-bottom: 26px;
  }

  .article-kicker {
    gap: 8px;
    font-size: 10px;
  }

  .article-title {
    font-size: clamp(30px, 8.4vw, 40px);
  }

  .article-main > .prose {
    padding-top: 28px;
  }

  .article-main > .toc-mobile + .prose {
    padding-top: 0;
  }

  .prose {
    font-size: 16px;
    line-height: 1.88;
  }

  .prose h2 {
    font-size: 1.4em;
  }

  .prose h3 {
    font-size: 1.16em;
  }

  .prose pre {
    padding: 14px 15px;
    font-size: 12px;
    border-radius: 9px;
  }

  .code-block {
    border-radius: 10px;
  }

  .article-footer {
    margin-top: 46px;
  }

  .post-nav {
    grid-template-columns: minmax(0, 1fr);
  }

  .post-nav-newer {
    text-align: left;
  }

  .post-nav-newer .post-nav-label {
    justify-content: flex-start;
  }

  .author-card {
    padding: 16px;
  }

  .about-hero {
    align-items: flex-start;
  }

  .about-avatar {
    width: 56px;
    height: 56px;
    padding-bottom: 4px;
    border-radius: 16px;
    font-size: 28px;
  }

  .about-prose > blockquote:first-child {
    font-size: 17px;
  }

  .footer-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

  .footer-brand {
    grid-column: auto;
  }

  .footer-bottom {
    margin-top: 34px;
  }

  .search-dialog {
    margin-top: 8vh;
    width: calc(100vw - 20px);
  }

  .search-foot {
    display: none;
  }

  .search-body {
    max-height: 66vh;
  }

  .to-top {
    right: 16px;
    bottom: 16px;
  }
}

@media (max-width: 420px) {
  .hero-actions .button {
    padding: 0 15px;
  }

  .stats dd {
    font-size: 22px;
  }

  .article-kicker .meta-sep:last-of-type {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media print {
  .site-header,
  .site-footer,
  .toc-aside,
  .toc-mobile,
  .reading-progress,
  .to-top,
  .post-nav,
  .author-card,
  .back-home,
  .search-dialog,
  .lightbox,
  .code-bar {
    display: none !important;
  }

  body {
    background: #fff;
    color: #000;
  }

  .article-shell,
  .article-shell.has-toc {
    display: block;
    max-width: none;
    padding-top: 0;
  }

  .article-main {
    max-width: none;
  }

  .prose {
    font-size: 11pt;
  }

  .prose a {
    color: #000;
    text-decoration: underline;
  }

  .prose pre {
    border: 1px solid #ccc;
    background: #f7f7f7;
    white-space: pre-wrap;
  }
}