/* ==========================================================================
   鲸的日记 · 主题样式
   单文件、零依赖、无外链字体。深色为默认，浅色跟随系统或手动切换。
   ========================================================================== */

:root {
  color-scheme: dark;

  --bg: #061017;
  --bg-blur: rgba(6, 16, 23, 0.76);
  --surface: #0b1d27;
  --surface-2: #0e2430;
  --ink: #e9f1f5;
  --ink-2: #a8bfca;
  --ink-3: #7a92a0;
  --prose-ink: #d8e4ea;
  --line: rgba(163, 196, 212, 0.14);
  --line-strong: rgba(163, 196, 212, 0.28);
  --accent: #7fd7c4;
  --accent-soft: rgba(127, 215, 196, 0.12);
  --gold: #e7c98e;
  --code-bg: rgba(163, 196, 212, 0.09);
  --hover-row: rgba(127, 215, 196, 0.04);

  --font-serif: "Noto Serif CJK SC", "Source Han Serif SC", "Songti SC", "STSong",
    "SimSun", "Georgia", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
    "Liberation Mono", monospace;

  --maxw: 1120px;
  --measure: 39rem;
  --header-h: 68px;
}

html[data-theme="light"] {
  color-scheme: light;

  --bg: #f8f7f3;
  --bg-blur: rgba(248, 247, 243, 0.82);
  --surface: #fffefb;
  --surface-2: #f2f0e9;
  --ink: #16232a;
  --ink-2: #4b5f6b;
  --ink-3: #5c6f7a;
  --prose-ink: #1f2f38;
  --line: rgba(22, 35, 42, 0.12);
  --line-strong: rgba(22, 35, 42, 0.24);
  --accent: #1c7a68;
  --accent-soft: rgba(28, 122, 104, 0.09);
  --gold: #8a6a2f;
  --code-bg: rgba(22, 35, 42, 0.06);
  --hover-row: rgba(28, 122, 104, 0.05);
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  transition: background-color 0.4s ease, color 0.4s ease;
}

::selection {
  background: var(--accent);
  color: #061017;
}

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

a {
  color: inherit;
}

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: clamp(20px, 5vw, 48px);
}

.mark {
  width: 26px;
  height: 26px;
  fill: var(--accent);
  flex: none;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 12px 20px;
  background: var(--accent);
  color: #061017;
  font-size: 0.9rem;
  text-decoration: none;
}

.skip:focus {
  left: 16px;
  top: 16px;
}

/* ------------------------------------------------------------------ 页头 */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--bg-blur);
  -webkit-backdrop-filter: saturate(150%) blur(14px);
  backdrop-filter: saturate(150%) blur(14px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
  color: var(--ink);
}

.brand-text {
  font-family: var(--font-serif);
  font-size: 1.06rem;
  letter-spacing: 0.14em;
}

.brand:hover .mark {
  transform: rotate(-6deg) scale(1.06);
}

.mark {
  transition: transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.4vw, 30px);
  font-size: 0.86rem;
}

.nav a {
  position: relative;
  color: var(--ink-2);
  text-decoration: none;
  letter-spacing: 0.06em;
  padding: 4px 0;
  transition: color 0.25s ease;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.nav a:hover,
.nav a[aria-current="page"] {
  color: var(--ink);
}

.nav a:hover::after,
.nav a[aria-current="page"]::after {
  transform: scaleX(1);
}

.nav-rss {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--ink-3) !important;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: transparent;
  color: var(--ink-2);
  cursor: pointer;
  transition: border-color 0.25s ease, color 0.25s ease, transform 0.25s ease;
}

.theme-toggle:hover {
  color: var(--accent);
  border-color: var(--line-strong);
  transform: rotate(12deg);
}

.theme-toggle svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
}

.theme-toggle .ico-moon {
  fill: currentColor;
  stroke: none;
}

html[data-theme="dark"] .ico-sun,
html[data-theme="light"] .ico-moon {
  display: block;
}

html[data-theme="dark"] .ico-moon,
html[data-theme="light"] .ico-sun {
  display: none;
}

/* --------------------------------------------------------------- 阅读进度 */

.progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  z-index: 60;
  pointer-events: none;
}

.progress span {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--accent), var(--gold));
  transition: width 0.1s linear;
}

/* -------------------------------------------------------------------- 首屏 */

.hero {
  position: relative;
  overflow: hidden;
  overflow: clip;
  padding: clamp(64px, 11vh, 128px) 0 clamp(52px, 8vh, 88px);
  border-bottom: 1px solid var(--line);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(880px 520px at 80% -12%, var(--accent-soft), transparent 62%),
    radial-gradient(720px 420px at 4% 112%, rgba(231, 201, 142, 0.07), transparent 60%);
}

.hero-mark {
  position: absolute;
  right: -3%;
  top: 50%;
  width: min(46vw, 520px);
  height: auto;
  transform: translateY(-50%) rotate(6deg);
  fill: var(--accent);
  opacity: 0.055;
}

.hero-inner {
  position: relative;
  z-index: 1;
}

.hero-kicker {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0 0 22px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero-kicker::before {
  content: "";
  width: 34px;
  height: 1px;
  background: currentColor;
  opacity: 0.7;
}

.hero-title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(2.9rem, 8vw, 5.6rem);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -0.015em;
}

.hero-tagline {
  margin: clamp(20px, 3vw, 30px) 0 0;
  font-family: var(--font-serif);
  font-size: clamp(1.05rem, 2vw, 1.38rem);
  color: var(--ink-2);
  letter-spacing: 0.04em;
}

.hero-desc {
  margin: 14px 0 0;
  max-width: 34em;
  font-size: 0.94rem;
  color: var(--ink-3);
}

.hero-meta {
  margin: 26px 0 0;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--ink-3);
}

/* ------------------------------------------------------------------ 列表 */

.list-section {
  padding-block: clamp(40px, 6vw, 64px) 96px;
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 18px;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1.02rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--ink-2);
}

.section-title::before {
  content: "";
  width: 7px;
  height: 7px;
  background: var(--accent);
  border-radius: 1px;
  transform: rotate(45deg);
}

.section-count {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--ink-3);
}

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

.post-item {
  border-bottom: 1px solid var(--line);
}

.post-link {
  display: grid;
  grid-template-columns: 104px minmax(0, 1fr) 26px;
  gap: clamp(16px, 3vw, 34px);
  align-items: start;
  padding: 30px 10px 10px;
  text-decoration: none;
  color: inherit;
  transition: background-color 0.3s ease;
}

.post-link:hover {
  background: var(--hover-row);
}

.post-date {
  padding-top: 0.5em;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.05em;
  color: var(--ink-3);
}

.post-title {
  margin: 0 0 0.45em;
  font-family: var(--font-serif);
  font-size: clamp(1.18rem, 1.7vw, 1.46rem);
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: 0.01em;
  background-image: linear-gradient(var(--accent), var(--accent));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0 1px;
  transition: background-size 0.4s ease, color 0.3s ease;
}

.post-link:hover .post-title {
  color: var(--accent);
  background-size: 100% 1px;
}

.post-summary {
  display: block;
  max-width: 48em;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--ink-2);
}

.post-meta {
  display: block;
  margin-top: 0.75em;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--ink-3);
}

.post-arrow {
  padding-top: 0.28em;
  font-size: 1.05rem;
  color: var(--ink-3);
  transition: transform 0.35s ease, color 0.3s ease;
}

.post-link:hover .post-arrow {
  transform: translateX(7px);
  color: var(--accent);
}

.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0 10px 26px calc(104px + clamp(16px, 3vw, 34px) + 10px);
}

.tag {
  display: inline-block;
  padding: 3px 10px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--ink-3);
  text-decoration: none;
  transition: color 0.25s ease, border-color 0.25s ease;
}

.tag:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.list-foot {
  margin: 34px 0 0;
  font-size: 0.82rem;
  color: var(--ink-3);
}

.list-foot a {
  color: var(--accent);
  text-underline-offset: 3px;
}

/* ------------------------------------------------------------------ 正文 */

.article-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 208px;
  gap: clamp(32px, 5vw, 76px);
  align-items: start;
  max-width: 1040px;
  margin-inline: auto;
  padding-block: clamp(40px, 6vw, 76px) 104px;
}

.article {
  min-width: 0;
  max-width: var(--measure);
}

.article-head {
  padding-bottom: 34px;
  border-bottom: 1px solid var(--line);
}

.article-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--ink-3);
}

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

.article-kicker a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.sep {
  opacity: 0.5;
}

.article-title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(1.86rem, 4vw, 2.86rem);
  font-weight: 600;
  line-height: 1.24;
  letter-spacing: -0.008em;
  text-wrap: balance;
}

.article-lede {
  margin: 22px 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--line-strong);
  font-family: var(--font-serif);
  font-size: 1rem;
  line-height: 1.85;
  color: var(--ink-2);
}

.article-meta {
  margin: 22px 0 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--ink-3);
}

.dot {
  margin-inline: 8px;
  opacity: 0.6;
}

/* 目录 */

.toc {
  position: sticky;
  top: calc(var(--header-h) + 28px);
  padding-left: 18px;
  border-left: 1px solid var(--line);
  font-family: var(--font-sans);
}

/* 长文分节多，目录要能自己滚，别顶出屏幕 */
@media (min-width: 981px) {
  .toc {
    max-height: calc(100vh - var(--header-h) - 60px);
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--line-strong) transparent;
  }
}

.toc-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.24em;
  color: var(--ink-3);
}

.toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.8rem;
  line-height: 1.65;
}

.toc-list li {
  margin-bottom: 9px;
}

.toc-l3 {
  padding-left: 13px;
  font-size: 0.94em;
  opacity: 0.82;
}

.toc a {
  display: block;
  color: var(--ink-3);
  text-decoration: none;
  transition: color 0.2s ease;
}

.toc a:hover,
.toc a[aria-current="true"] {
  color: var(--accent);
}

/* 长文排版 */

.prose {
  padding-top: 40px;
  font-family: var(--font-serif);
  font-size: clamp(1.05rem, 0.55vw + 0.86rem, 1.13rem);
  line-height: 2.02;
  letter-spacing: 0.014em;
  color: var(--prose-ink);
}

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

.prose > h2:first-child {
  margin-top: 0.55em;
}

.prose p {
  margin: 0 0 1.55em;
}

.prose h2 {
  position: relative;
  margin: 2.7em 0 1em;
  padding-left: 17px;
  font-family: var(--font-serif);
  font-size: 1.3em;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink);
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.prose h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.42em;
  width: 5px;
  height: 0.92em;
  background: var(--accent);
  border-radius: 2px;
}

.prose h3 {
  margin: 2.1em 0 0.7em;
  font-size: 1.08em;
  font-weight: 600;
  color: var(--ink);
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.anchor {
  margin-left: 0.5em;
  font-family: var(--font-sans);
  font-size: 0.85em;
  font-weight: 400;
  color: var(--ink-3);
  text-decoration: none;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.prose h2:hover .anchor,
.prose h3:hover .anchor,
.prose h2:focus-within .anchor,
.prose h3:focus-within .anchor {
  opacity: 0.65;
}

.prose blockquote {
  margin: 1.9em 0;
  padding: 2px 0 2px 22px;
  border-left: 2px solid var(--accent);
  color: var(--ink-2);
}

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

.prose strong {
  font-weight: 600;
  color: var(--ink);
}

.prose em {
  font-style: italic;
}

.prose a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  text-decoration-color: color-mix(in srgb, var(--accent) 45%, transparent);
  transition: text-decoration-color 0.25s ease;
}

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

.prose ul,
.prose ol {
  margin: 0 0 1.6em;
  padding-left: 1.35em;
}

.prose li {
  margin-bottom: 0.45em;
}

.prose li::marker {
  color: var(--ink-3);
  font-size: 0.9em;
}

.prose li > ul,
.prose li > ol {
  margin-top: 0.45em;
  margin-bottom: 0.2em;
}

.prose code {
  padding: 0.1em 0.36em;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--code-bg);
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--ink);
}

.prose pre {
  margin: 1.7em 0;
  padding: 18px 20px;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  font-size: 0.86em;
  line-height: 1.7;
}

.prose pre code {
  padding: 0;
  border: 0;
  background: none;
  font-size: 1em;
}

.prose hr {
  width: 62%;
  height: 1px;
  margin: 3em auto;
  border: 0;
  background: var(--line-strong);
}

.table-wrap {
  margin: 1.9em 0;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
  -webkit-overflow-scrolling: touch;
}

.table-hint {
  display: none;
}

@media (max-width: 980px) {
  .prose .table-hint {
    display: block;
    margin: 1.7em 0 -1.35em;
    font-family: var(--font-mono);
    font-size: 0.7em;
    letter-spacing: 0.08em;
    color: var(--ink-3);
    text-align: right;
  }
}

.prose table {
  width: 100%;
  min-width: 34rem;
  border-collapse: collapse;
  font-family: var(--font-sans);
  font-size: 0.84em;
  line-height: 1.65;
  letter-spacing: 0;
}

.prose th,
.prose td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.prose th {
  white-space: nowrap;
  background: var(--surface);
  font-weight: 600;
  color: var(--ink);
  letter-spacing: 0.03em;
}

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

.prose tbody tr:hover {
  background: var(--hover-row);
}

/* 文末 */

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 44px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 40px;
}

.pn {
  display: block;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 10px;
  text-decoration: none;
  transition: border-color 0.3s ease, background-color 0.3s ease;
}

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

.pn-label {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  color: var(--ink-3);
}

.pn-title {
  display: block;
  font-family: var(--font-serif);
  font-size: 0.98rem;
  line-height: 1.55;
  color: var(--ink);
  transition: color 0.25s ease;
}

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

.pn-prev {
  text-align: right;
}

.pn:only-child {
  grid-column: 1 / -1;
}

.article-end {
  margin: 36px 0 0;
  font-size: 0.86rem;
}

.article-end a {
  color: var(--ink-3);
  text-decoration: none;
  transition: color 0.25s ease;
}

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

/* ------------------------------------------------------------------ 404 */

.center-page {
  padding-block: clamp(80px, 16vh, 160px);
  text-align: center;
}

.big-code {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(4.6rem, 17vw, 10rem);
  font-weight: 700;
  line-height: 0.92;
  letter-spacing: -0.04em;
  background: linear-gradient(160deg, var(--accent), var(--gold));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.center-title {
  margin: 26px 0 0;
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 600;
}

.center-text {
  max-width: 26em;
  margin: 16px auto 32px;
  color: var(--ink-2);
  font-size: 0.94rem;
}

.btn {
  display: inline-block;
  padding: 12px 28px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-size: 0.9rem;
  color: var(--ink);
  text-decoration: none;
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

.btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #061017;
}

/* ------------------------------------------------------------------ 页脚 */

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--surface);
  padding-block: clamp(40px, 6vw, 64px) 40px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.footer-brand {
  display: flex;
  align-items: flex-start;
  gap: 13px;
}

.footer-title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1rem;
  letter-spacing: 0.14em;
  color: var(--ink);
}

.footer-tag {
  margin: 6px 0 0;
  font-size: 0.82rem;
  color: var(--ink-3);
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.84rem;
}

.footer-nav a {
  align-self: flex-start;
  color: var(--ink-2);
  text-decoration: none;
  transition: color 0.25s ease;
}

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

.footer-meta {
  font-size: 0.78rem;
  color: var(--ink-3);
  text-align: right;
}

.footer-meta p {
  margin: 0 0 8px;
}

.footer-meta a {
  color: var(--ink-3);
  text-decoration: none;
}

.footer-meta a:hover {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.footer-meta .muted {
  opacity: 0.75;
  font-size: 0.74rem;
}

/* ------------------------------------------------------------------ 响应 */

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

  .article {
    max-width: none;
  }

  .toc {
    order: -1;
    position: static;
    margin-bottom: 34px;
    padding: 0 0 14px;
    border-left: 0;
    border-bottom: 1px solid var(--line);
  }

  .toc-title {
    margin-bottom: 10px;
  }

  .toc-list {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 4px;
    scrollbar-width: none;
  }

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

  .toc-list li {
    margin: 0;
    flex: none;
  }

  .toc-list a {
    padding: 5px 12px;
    border: 1px solid var(--line);
    border-radius: 999px;
    font-size: 0.78rem;
    white-space: nowrap;
  }

  .toc-l3 {
    display: none;
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }

  .footer-meta {
    grid-column: 1 / -1;
    text-align: left;
    padding-top: 18px;
    border-top: 1px solid var(--line);
  }
}

@media (max-width: 700px) {
  .post-link {
    grid-template-columns: minmax(0, 1fr) 22px;
    gap: 6px;
    padding: 26px 4px 6px;
  }

  .post-date {
    grid-column: 1 / -1;
    padding: 0 0 4px;
    font-size: 0.72rem;
  }

  .post-tags {
    padding: 0 4px 22px;
  }

  .post-summary {
    font-size: 0.9rem;
    line-height: 1.75;
  }

  .hero-mark {
    opacity: 0.04;
    right: -22%;
    width: 78vw;
  }

  .prose {
    line-height: 1.95;
  }

  .prose h2 {
    margin-top: 2.2em;
  }

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

  .pn-prev {
    text-align: left;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .nav {
    gap: 12px;
    font-size: 0.8rem;
  }

  .brand-text {
    font-size: 0.96rem;
    letter-spacing: 0.1em;
  }
}

@media (max-width: 400px) {
  .nav-rss {
    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;
  }
}

/* ------------------------------------------------------------------ 打印 */

@media print {
  :root {
    --bg: #fff;
    --ink: #111;
    --ink-2: #333;
    --ink-3: #666;
    --prose-ink: #111;
    --line: #ddd;
    --line-strong: #bbb;
    --surface: #fff;
  }

  .site-header,
  .site-footer,
  .progress,
  .toc,
  .post-nav,
  .skip,
  .article-tags,
  .article-end {
    display: none !important;
  }

  .article-wrap {
    display: block;
    max-width: none;
    padding: 0;
  }

  .article {
    max-width: none;
  }

  .prose {
    font-size: 11.5pt;
    line-height: 1.65;
  }

  .prose a {
    color: #111;
    text-decoration: none;
  }

  .prose h2,
  .prose h3 {
    break-after: avoid;
  }

  .article-title {
    font-size: 22pt;
  }
}