:root {
  --bg: #f8f6f2;
  --bg-soft: #fffdfa;
  --panel: rgba(255, 255, 255, 0.7);
  --panel-strong: rgba(255, 255, 255, 0.9);
  --text: #2a3440;
  --text-soft: #7b8794;
  --line: rgba(51, 68, 86, 0.11);
  --line-strong: rgba(51, 68, 86, 0.18);
  --accent: #5c7793;
  --accent-strong: #34475b;
  --shadow: 0 24px 60px rgba(36, 52, 70, 0.06);
  --radius: 24px;
  --sidebar-width: min(21rem, 29vw);
  --content-width: 40rem;
  --toc-width: 13.5rem;
  --post-shell-width: calc(var(--content-width) + var(--toc-width) + 3rem);
  --font-serif: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", "Songti SC", "STSong", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Hiragino Sans GB", "Helvetica Neue", sans-serif;
}

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

html {
  font-size: 15px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(224, 206, 183, 0.34), transparent 32%),
    linear-gradient(180deg, #f7f4ef 0%, #fbf9f5 46%, #fffdfa 100%);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.68;
}

button {
  font: inherit;
}

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

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

.page-aura {
  position: fixed;
  z-index: 0;
  pointer-events: none;
  border-radius: 999px;
  filter: blur(88px);
  opacity: 0.22;
}

.page-aura--one {
  top: 8vh;
  right: 11vw;
  width: 15rem;
  height: 15rem;
  background: rgba(154, 178, 200, 0.18);
}

.page-aura--two {
  bottom: 10vh;
  left: 22vw;
  width: 14rem;
  height: 14rem;
  background: rgba(216, 186, 154, 0.18);
}

.reading-progress {
  position: fixed;
  top: 0;
  left: var(--sidebar-width);
  right: 0;
  z-index: 12;
  height: 2px;
  background: rgba(91, 124, 153, 0.06);
  pointer-events: none;
}

.reading-progress__bar {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, rgba(92, 119, 147, 0.82), rgba(140, 165, 188, 0.78));
  transform-origin: left center;
  transform: scaleX(0);
  transition: transform 90ms linear;
}

.site-shell {
  position: relative;
  z-index: 1;
  min-height: 100vh;
}

.site-sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--sidebar-width);
  z-index: 3;
}

.sidebar {
  position: relative;
  height: 100%;
  overflow: hidden;
}

.sidebar__backdrop,
.sidebar__overlay {
  position: absolute;
  inset: 0;
}

.sidebar__backdrop {
  background-size: cover;
  background-position: center;
  transform: scale(1.06);
  filter: blur(5px) saturate(0.92);
}

.sidebar__overlay {
  background:
    linear-gradient(180deg, rgba(66, 55, 46, 0.18), rgba(21, 19, 18, 0.52)),
    linear-gradient(140deg, rgba(255, 247, 237, 0.2), rgba(255, 255, 255, 0.03));
}

.sidebar__content {
  position: relative;
  height: 100%;
  padding: 2.2rem 1.7rem 1.8rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  color: #fffdf9;
}

.sidebar__brand {
  display: grid;
  gap: 0.85rem;
  justify-items: start;
}

.sidebar__avatar {
  width: 4.6rem;
  height: 4.6rem;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid rgba(255, 250, 246, 0.78);
  box-shadow: 0 16px 32px rgba(18, 17, 16, 0.2);
}

.sidebar__title {
  margin: 0;
  font-family: var(--font-sans);
  font-size: clamp(1.95rem, 2.3vw, 2.4rem);
  line-height: 0.98;
  letter-spacing: -0.05em;
  text-transform: lowercase;
}

.sidebar__subtitle {
  margin: 0.55rem 0 0;
  max-width: 15.5rem;
  font-family: var(--font-serif);
  font-size: 0.92rem;
  line-height: 1.58;
  letter-spacing: 0.01em;
  color: rgba(255, 250, 246, 0.82);
}

.sidebar__description {
  margin: 0;
  max-width: 15rem;
  color: rgba(255, 250, 246, 0.7);
  font-size: 0.84rem;
  line-height: 1.72;
}

.sidebar__nav,
.sidebar__social {
  display: grid;
  gap: 0.6rem;
}

.sidebar__nav {
  margin-top: 0.95rem;
}

.sidebar__nav a,
.sidebar__social a {
  width: fit-content;
  font-size: 0.9rem;
  color: rgba(255, 250, 246, 0.86);
  transition: transform 160ms ease, color 160ms ease, opacity 160ms ease;
}

.sidebar__nav a:hover,
.sidebar__nav a.is-active,
.sidebar__social a:hover {
  color: #ffffff;
  transform: translateX(4px);
}

.sidebar__nav a.is-active {
  text-shadow: 0 0 18px rgba(255, 255, 255, 0.2);
}

.sidebar__social {
  margin-top: auto;
  gap: 0.35rem;
}

.site-main {
  margin-left: var(--sidebar-width);
  padding: 2.7rem clamp(1.7rem, 3.6vw, 3.3rem) 4rem;
}

.hero,
.page-intro,
.article,
.post-list,
.friend-grid,
.tax-grid,
.not-found {
  width: min(100%, var(--content-width));
  margin: 0 auto;
}

.hero,
.page-intro,
.article,
.not-found {
  background: transparent;
  border: 0;
  box-shadow: none;
  backdrop-filter: none;
}

.article-layout {
  width: min(100%, var(--post-shell-width));
  margin: 0 auto;
}

.article-layout--with-toc {
  display: grid;
  grid-template-columns: minmax(0, var(--content-width)) minmax(11.5rem, var(--toc-width));
  grid-template-areas: "main toc";
  column-gap: clamp(1.4rem, 3vw, 3rem);
  align-items: start;
}

.article-layout .article {
  grid-area: main;
  width: 100%;
  margin: 0;
}

.hero {
  padding: 0 0 1.8rem;
  margin-bottom: 0.3rem;
  border-bottom: 1px solid var(--line);
}

.hero__kicker,
.page-intro__kicker,
.article__eyebrow {
  margin: 0 0 0.75rem;
  color: var(--accent);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.72rem;
  font-weight: 600;
}

.hero__title,
.page-intro__title,
.article__title,
.post-card__title,
.not-found__title {
  margin: 0;
  font-family: var(--font-serif);
  color: var(--accent-strong);
  line-height: 1.16;
}

.hero__title {
  font-family: var(--font-sans);
  font-size: clamp(2.4rem, 5vw, 3.2rem);
  letter-spacing: -0.05em;
}

.hero__description,
.page-intro__description,
.empty-state__text,
.not-found__text {
  max-width: 42rem;
  margin: 0.85rem 0 0;
  color: var(--text-soft);
  font-size: 0.92rem;
}

.post-list {
  background: transparent;
  border: 0;
  box-shadow: none;
}

.post-card {
  padding: 1.35rem 0 1.5rem;
  border-bottom: 1px solid var(--line);
}

.post-card:last-child {
  border-bottom: 0;
}

.view-home .post-card:first-child {
  padding-top: 0.15rem;
}

.post-card__header {
  display: grid;
  gap: 0.34rem;
}

.post-card__title {
  font-size: clamp(1.34rem, 2.25vw, 1.72rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.28;
}

.post-card__title a,
.post-card__meta-link,
.post-card__more,
.tax-card:hover .tax-card__name,
.friend-card:hover .friend-card__name,
.article__eyebrow a:hover,
.article__tag:hover,
.post-nav__item:hover strong {
  color: var(--accent);
}

.post-card__meta,
.article__meta,
.site-footer,
.tax-card__count,
.friend-card__blog,
.post-nav__label {
  color: var(--text-soft);
  font-size: 0.84rem;
  line-height: 1.6;
}

.post-card__summary,
.friend-card__desc {
  margin: 0.5rem 0 0;
  color: var(--text-soft);
  font-size: 0.9rem;
  line-height: 1.72;
}

.post-card__summary {
  display: -webkit-box;
  overflow: hidden;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
}

.post-card__more {
  display: inline-flex;
  margin-top: 0.72rem;
  font-weight: 600;
  font-size: 0.84rem;
}

.pagination {
  width: min(100%, var(--content-width));
  margin: 1.1rem auto 0;
}

.pagination .page-number,
.pagination .extend {
  display: inline-block;
  margin-right: 1rem;
  padding: 0.25rem 0;
  border-radius: 0;
  background: transparent;
  border: 0;
  color: var(--text-soft);
  font-size: 0.86rem;
}

.pagination .current {
  background: transparent;
  color: var(--accent-strong);
  font-weight: 600;
}

.archive-list {
  width: min(100%, var(--content-width));
  margin: 0 auto;
}

.archive-group {
  display: grid;
  grid-template-columns: 5rem minmax(0, 1fr);
  gap: 1.15rem;
  padding: 1.15rem 0 1.25rem;
  border-bottom: 1px solid var(--line);
}

.archive-group:first-child {
  padding-top: 0.2rem;
}

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

.archive-group__year {
  margin: 0;
  padding-top: 0.18rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent-strong);
  letter-spacing: -0.02em;
}

.archive-group__items {
  min-width: 0;
}

.archive-entry {
  display: grid;
  grid-template-columns: 3.8rem minmax(0, 1fr) auto;
  gap: 0.95rem;
  align-items: baseline;
  padding: 0.55rem 0;
}

.archive-entry__date,
.archive-entry__meta {
  color: var(--text-soft);
  font-size: 0.82rem;
  line-height: 1.5;
}

.archive-entry__date {
  font-variant-numeric: tabular-nums;
}

.archive-entry__title {
  min-width: 0;
  font-family: var(--font-serif);
  font-size: 1.02rem;
  line-height: 1.45;
  color: var(--accent-strong);
}

.archive-entry:hover .archive-entry__title {
  color: var(--accent);
}

.tax-list {
  width: min(100%, var(--content-width));
  margin: 0 auto;
  border-top: 1px solid var(--line);
}

.tax-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: center;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}

.tax-row__name {
  min-width: 0;
  font-family: var(--font-serif);
  font-size: 1.05rem;
  line-height: 1.42;
  color: var(--accent-strong);
}

.tax-row__count {
  color: var(--text-soft);
  font-size: 0.84rem;
  white-space: nowrap;
}

.tax-row:hover .tax-row__name,
.tag-cloud__item:hover .tag-cloud__name {
  color: var(--accent);
}

.tag-cloud {
  width: min(100%, var(--content-width));
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem 0.6rem;
}

.tag-cloud__item {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.48rem 0.76rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(73, 107, 140, 0.1);
}

.tag-cloud__name {
  font-size: 0.9rem;
  color: var(--accent-strong);
}

.tag-cloud__count {
  color: var(--text-soft);
  font-size: 0.78rem;
}

.page-intro,
.article,
.not-found {
  padding: 0;
}

.page-intro {
  margin-bottom: 1rem;
  padding-bottom: 1.3rem;
  border-bottom: 1px solid var(--line);
}

.page-intro__title,
.article__title,
.not-found__title {
  font-size: clamp(1.82rem, 3.4vw, 2.42rem);
  letter-spacing: -0.035em;
}

.article--page {
  margin-top: 0;
}

.article__header {
  display: grid;
  gap: 0.65rem;
  margin-bottom: 1.8rem;
  padding-bottom: 1.45rem;
  border-bottom: 1px solid var(--line);
}

.article__divider,
.post-card__dot {
  margin: 0 0.5rem;
  color: var(--text-soft);
}

.article__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.article__tag {
  padding: 0.24rem 0.7rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.5);
  font-size: 0.82rem;
}

.article__content {
  font-family: var(--font-sans);
  font-size: 0.93rem;
  line-height: 1.84;
  color: var(--text);
}

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

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

.article__content > h1:first-child {
  display: none;
}

.article__content p,
.article__content ul,
.article__content ol,
.article__content blockquote,
.article__content pre,
.article__content table {
  margin: 1.05rem 0;
}

.article__content h1,
.article__content h2,
.article__content h3,
.article__content h4,
.article__content h5,
.article__content h6 {
  margin: 1.8rem 0 0.72rem;
  line-height: 1.28;
  color: var(--accent-strong);
  font-family: var(--font-serif);
  letter-spacing: -0.02em;
  scroll-margin-top: 5.8rem;
}

.article__content h2 {
  font-size: 1.3rem;
}

.article__content h3 {
  font-size: 1.08rem;
}

.article__content a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: rgba(91, 124, 153, 0.3);
  text-underline-offset: 0.18em;
}

.article__content .headerlink {
  display: none;
}

.article__content blockquote {
  padding: 0.85rem 1rem;
  border-left: 3px solid var(--accent);
  background: rgba(92, 119, 147, 0.06);
  border-radius: 0 0.85rem 0.85rem 0;
  color: var(--text-soft);
}

.article__content code {
  padding: 0.12rem 0.36rem;
  border-radius: 0.32rem;
  background: rgba(52, 76, 100, 0.08);
  font-family: "SFMono-Regular", "JetBrains Mono", "Fira Code", monospace;
  font-size: 0.82em;
}

.article__content .code-frame {
  margin: 1.2rem 0 1.35rem;
  border-radius: 1rem;
  overflow: hidden;
  border: 1px solid rgba(25, 39, 53, 0.16);
  background:
    linear-gradient(180deg, rgba(34, 44, 56, 0.96), rgba(24, 31, 40, 0.98));
  box-shadow: 0 18px 30px rgba(23, 34, 46, 0.1);
}

.article__content .code-frame__head {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.8rem;
  min-height: 2.75rem;
  padding: 0.7rem 0.9rem;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.article__content .code-frame__traffic {
  display: inline-flex;
  gap: 0.34rem;
}

.article__content .code-frame__traffic span {
  width: 0.56rem;
  height: 0.56rem;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
}

.article__content .code-frame__traffic span:nth-child(1) {
  background: #ff5f57;
}

.article__content .code-frame__traffic span:nth-child(2) {
  background: #febc2e;
}

.article__content .code-frame__traffic span:nth-child(3) {
  background: #28c840;
}

.article__content .code-frame__label {
  min-width: 0;
  color: rgba(245, 248, 252, 0.72);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.article__content .code-frame__copy {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 4.2rem;
  padding: 0.38rem 0.65rem;
  border: 0;
  border-radius: 999px;
  background: rgba(245, 248, 252, 0.08);
  color: rgba(245, 248, 252, 0.82);
  font-size: 0.76rem;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background 160ms ease, color 160ms ease, transform 160ms ease;
}

.article__content .code-frame__copy:hover,
.article__content .code-frame__copy:focus-visible {
  background: rgba(245, 248, 252, 0.16);
  color: #ffffff;
  transform: translateY(-1px);
}

.article__content .code-frame__copy.is-copied {
  background: rgba(91, 124, 153, 0.34);
  color: #ffffff;
}

.article__content pre {
  margin: 0;
  padding: 1rem 1.05rem 1.08rem;
  overflow: auto;
  border-radius: 0;
  background: transparent;
  color: #f8fafc;
  box-shadow: none;
}

.article__content pre code {
  padding: 0;
  background: transparent;
  color: inherit;
  font-size: 0.9em;
  line-height: 1.72;
}

.article__content table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9em;
}

.article__content th,
.article__content td {
  padding: 0.8rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
}

.article__content img {
  margin: 1.3rem auto;
  border-radius: 0.9rem;
  box-shadow: 0 16px 28px rgba(38, 54, 74, 0.1);
}

.article__content figure.article-media {
  margin: 1.55rem 0 1.75rem;
}

.article__content figure.article-media img {
  margin: 0 auto;
}

.article__content figcaption.article-media__caption {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: baseline;
  gap: 0.32rem;
  margin-top: 0.65rem;
  color: var(--text-soft);
  font-size: 0.8rem;
  line-height: 1.7;
  text-align: center;
}

.article-media__label {
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.72rem;
}

.article-media__text {
  max-width: 100%;
}

.post-outline {
  grid-area: toc;
  position: sticky;
  top: 2.7rem;
  align-self: start;
  padding-top: 0.25rem;
}

.post-outline__eyebrow,
.post-outline__title {
  margin: 0;
}

.post-outline__eyebrow {
  color: var(--accent);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.68rem;
  font-weight: 600;
}

.post-outline__title {
  margin-top: 0.42rem;
  margin-bottom: 0.9rem;
  color: var(--accent-strong);
  font-family: var(--font-serif);
  font-size: 0.98rem;
  line-height: 1.42;
}

.post-toc {
  max-height: calc(100vh - 5rem);
  overflow: auto;
  padding-left: 1rem;
  border-left: 1px solid var(--line);
}

.post-toc .post-toc__list,
.post-toc .post-toc__list-child,
.post-toc .toc-child {
  margin: 0;
  padding: 0;
  list-style: none;
}

.post-toc .post-toc__list-item + .post-toc__list-item,
.post-toc .toc-item + .toc-item {
  margin-top: 0.38rem;
}

.post-toc .post-toc__list-child,
.post-toc .toc-child {
  margin-top: 0.28rem;
  margin-left: 0.1rem;
  padding-left: 0.75rem;
  border-left: 1px solid rgba(51, 68, 86, 0.08);
}

.post-toc .post-toc__list-link,
.post-toc .toc-link {
  display: block;
  color: var(--text-soft);
  font-size: 0.82rem;
  line-height: 1.55;
  transition: color 160ms ease, transform 160ms ease;
}

.post-toc .post-toc__list-link:hover,
.post-toc .post-toc__list-link.is-active,
.post-toc .toc-link:hover,
.post-toc .toc-link.is-active {
  color: var(--accent-strong);
  transform: translateX(2px);
}

.post-toc .post-toc__list-link.is-active,
.post-toc .toc-link.is-active {
  font-weight: 600;
}

.post-toc .post-toc__list-number,
.post-toc .toc-number {
  display: none;
}

.post-nav {
  width: min(100%, var(--content-width));
  margin: 1.25rem auto 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
}

.post-nav__item {
  padding: 0.9rem 0.15rem;
  border-radius: 0;
  background: transparent;
  border: 0;
  box-shadow: none;
  border-top: 1px solid var(--line);
}

.post-nav__item strong {
  display: block;
  margin-top: 0.3rem;
  color: var(--accent-strong);
  font-size: 0.92rem;
}

.view-post .post-nav {
  width: min(100%, var(--post-shell-width));
}

.tax-card,
.friend-card {
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 1.15rem;
  padding: 1.05rem 1.1rem;
  box-shadow: 0 12px 22px rgba(38, 54, 74, 0.05);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.tax-card:hover,
.friend-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 22px 42px rgba(38, 54, 74, 0.14);
  border-color: rgba(91, 124, 153, 0.28);
}

.tax-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.tax-card--tag {
  background: rgba(255, 251, 246, 0.88);
}

.tax-card__name,
.friend-card__name {
  color: var(--accent-strong);
  font-size: 1rem;
}

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

.friend-grid {
  margin-top: 1.25rem;
}

.friend-card {
  display: grid;
  grid-template-columns: 4rem 1fr;
  gap: 1rem;
  align-items: start;
}

.friend-card__avatar {
  width: 4rem;
  height: 4rem;
  border-radius: 50%;
  object-fit: cover;
}

.friend-card__body {
  min-width: 0;
}

.friend-card__blog {
  display: block;
  margin-top: 0.22rem;
}

.friend-card__desc {
  margin-bottom: 0;
  font-size: 0.9rem;
}

.empty-state,
.not-found {
  text-align: left;
}

.empty-state {
  width: min(100%, var(--content-width));
  margin: 0 auto;
  padding: 2rem 0;
  border-radius: 0;
  background: transparent;
  border: 0;
  box-shadow: none;
}

.empty-state__title,
.not-found__code {
  margin: 0;
  font-family: var(--font-serif);
  color: var(--accent-strong);
}

.not-found__code {
  font-size: 1rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
}

.not-found__link {
  display: inline-flex;
  margin-top: 1.1rem;
  padding: 0.8rem 1.1rem;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
}

.site-footer {
  margin-left: var(--sidebar-width);
  padding: 1.5rem 3rem 2rem;
  text-align: left;
}

.site-footer__text,
.site-footer__license {
  width: min(100%, var(--content-width));
  margin: 0.4rem auto 0;
}

.site-footer__support {
  width: fit-content;
  margin: 1rem auto 0 0;
  padding: 0.6rem 0.78rem;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(73, 107, 140, 0.08);
}

.site-footer__support-logo {
  width: 1.9rem;
  height: 1.9rem;
  object-fit: contain;
  border-radius: 0.45rem;
  background: #fff;
}

.site-footer__support-copy {
  color: var(--text-soft);
  font-size: 0.84rem;
}

.site-footer__support-copy strong {
  color: var(--accent-strong);
}

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

.mobile-topbar,
.mobile-drawer,
.mobile-backdrop {
  display: none;
}

@media (max-width: 980px) {
  :root {
    --content-width: 100%;
    --post-shell-width: 100%;
  }

  .reading-progress {
    left: 0;
  }

  .site-sidebar {
    display: none;
  }

  .mobile-topbar {
    position: sticky;
    top: 0;
    z-index: 8;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 1rem;
    padding: 0.82rem 0.95rem;
    background: rgba(255, 251, 246, 0.84);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(81, 103, 126, 0.1);
  }

  .mobile-topbar__toggle {
    width: 2.45rem;
    height: 2.45rem;
    padding: 0.62rem;
    display: inline-grid;
    align-content: center;
    gap: 0.28rem;
    border: 0;
    border-radius: 50%;
    background: rgba(91, 124, 153, 0.08);
    cursor: pointer;
  }

  .mobile-topbar__toggle span {
    display: block;
    height: 2px;
    border-radius: 999px;
    background: var(--accent-strong);
  }

  .mobile-topbar__title {
    font-family: var(--font-sans);
    font-size: 1.24rem;
    color: var(--accent-strong);
    text-align: center;
    letter-spacing: -0.04em;
    text-transform: lowercase;
  }

  .mobile-topbar__avatar img {
    width: 2.35rem;
    height: 2.35rem;
    border-radius: 50%;
    object-fit: cover;
  }

  .mobile-drawer,
  .mobile-backdrop {
    display: block;
  }

  .mobile-drawer {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 10;
    width: min(82vw, 20rem);
    transform: translateX(-105%);
    transition: transform 220ms ease;
  }

  .mobile-drawer__panel {
    position: relative;
    width: 100%;
    height: 100%;
    box-shadow: 30px 0 80px rgba(15, 18, 22, 0.22);
  }

  .mobile-backdrop {
    position: fixed;
    inset: 0;
    z-index: 9;
    background: rgba(12, 16, 20, 0.34);
    opacity: 0;
    pointer-events: none;
    transition: opacity 220ms ease;
  }

  body.drawer-open .mobile-drawer {
    transform: translateX(0);
  }

  body.drawer-open .mobile-backdrop {
    opacity: 1;
    pointer-events: auto;
  }

  .site-main,
  .site-footer {
    margin-left: 0;
  }

  .site-main {
    padding: 1rem 0.95rem 2.8rem;
  }

  .site-footer {
    padding: 0 0.95rem 1.5rem;
  }

  .article-layout--with-toc {
    grid-template-columns: 1fr;
    grid-template-areas:
      "toc"
      "main";
    gap: 1.15rem;
  }

  .hero__title,
  .page-intro__title,
  .article__title,
  .not-found__title {
    font-size: clamp(1.72rem, 9vw, 2.15rem);
  }

  .post-card__title {
    font-size: clamp(1.25rem, 7.6vw, 1.5rem);
  }

  .article__content {
    font-size: 0.92rem;
    line-height: 1.82;
  }

  .article__content .code-frame {
    margin-left: -0.1rem;
    margin-right: -0.1rem;
    border-radius: 0.92rem;
  }

  .article__content .code-frame__head {
    padding: 0.62rem 0.75rem;
    gap: 0.6rem;
  }

  .article__content .code-frame__copy {
    min-width: 3.85rem;
    padding: 0.34rem 0.56rem;
  }

  .post-outline {
    position: static;
    padding-top: 0;
  }

  .post-outline__title {
    margin-bottom: 0.7rem;
    font-size: 0.92rem;
  }

  .post-toc {
    max-height: 12rem;
    padding-top: 0.72rem;
    padding-left: 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

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

  .archive-group {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }

  .archive-group__year {
    padding-top: 0;
    font-size: 0.88rem;
  }

  .archive-entry {
    grid-template-columns: 3.3rem minmax(0, 1fr);
    gap: 0.75rem;
  }

  .archive-entry__meta {
    display: none;
  }

  .tax-row {
    grid-template-columns: minmax(0, 1fr) auto;
    padding: 0.92rem 0;
  }

  .tag-cloud {
    gap: 0.55rem 0.5rem;
  }

  .site-footer__support {
    padding: 0.56rem 0.72rem;
  }

  .sidebar--mobile .sidebar__content {
    padding-top: 4.25rem;
  }
}