:root {
  --bg: #fcfbf8;
  --fg: #1c1b18;
  --muted: #6f6a61;
  --faint: #928d84;
  --line: #e7e3da;
  --accent: #2f5fd0;
  --note: #8a8378;
  --tool: #2f7d5a;
  --dev: #a4622c;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #131311;
    --fg: #e9e6df;
    --muted: #9a958b;
    --faint: #7b776e;
    --line: #2a2926;
    --accent: #8fb0ff;
    --note: #9a958b;
    --tool: #6fc196;
    --dev: #e0a06a;
  }
}

:root[data-theme='light'] {
  --bg: #fcfbf8;
  --fg: #1c1b18;
  --muted: #6f6a61;
  --faint: #928d84;
  --line: #e7e3da;
  --accent: #2f5fd0;
  --note: #8a8378;
  --tool: #2f7d5a;
  --dev: #a4622c;
}

:root[data-theme='dark'] {
  --bg: #131311;
  --fg: #e9e6df;
  --muted: #9a958b;
  --faint: #7b776e;
  --line: #2a2926;
  --accent: #8fb0ff;
  --note: #9a958b;
  --tool: #6fc196;
  --dev: #e0a06a;
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC',
    'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.wrap {
  max-width: 660px;
  margin: 0 auto;
  padding: 0 24px;
}

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

a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

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

/* 顶部 */

.site-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 34px 0 18px;
}

.brand {
  color: var(--fg);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.brand:hover {
  text-decoration: none;
  opacity: 0.72;
}

.site-head nav {
  display: flex;
  align-items: center;
  gap: 15px;
  font-size: 13.5px;
  color: var(--muted);
}

.site-head nav a {
  color: var(--muted);
}

.site-head nav a.on {
  color: var(--fg);
}

.site-head nav a:hover {
  color: var(--fg);
  text-decoration: none;
}

.theme {
  margin: 0;
  padding: 0;
  border: 0;
  background: none;
  color: var(--faint);
  font-size: 13px;
  line-height: 1;
  cursor: pointer;
}

.theme:hover {
  color: var(--fg);
}

/* 首页头图区 */

.hero {
  padding: 26px 0 30px;
  border-bottom: 1px solid var(--line);
}

.hero h1 {
  margin: 0 0 8px;
  font-size: 26px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.hero p {
  margin: 0;
  color: var(--muted);
  font-size: 15.5px;
}

/* 列表 */

.page-head {
  padding: 26px 0 26px;
  border-bottom: 1px solid var(--line);
}

.page-head h1 {
  margin: 0 0 6px;
  font-size: 22px;
  font-weight: 600;
}

.page-head p {
  margin: 0;
  color: var(--muted);
  font-size: 14.5px;
}

.feed {
  padding-bottom: 24px;
}

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

.item a {
  display: block;
  padding: 22px 0;
  color: inherit;
}

.item a:hover {
  text-decoration: none;
}

.item a:hover h2 {
  color: var(--accent);
}

.item h2 {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  transition: color 0.15s ease;
}

.item .excerpt {
  margin: 0;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.7;
}

.meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
  color: var(--faint);
  font-size: 12.5px;
  font-variant-numeric: tabular-nums;
}

.meta time {
  letter-spacing: 0.04em;
}

.type {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--muted);
}

.type::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
}

.t-note {
  color: var(--note);
}

.t-tool {
  color: var(--tool);
}

.t-dev {
  color: var(--dev);
}

/* 详情页 */

.entry {
  padding: 30px 0 8px;
}

.entry h1 {
  margin: 4px 0 22px;
  font-size: 25px;
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: 0.01em;
}

.prose {
  font-size: 16.5px;
  line-height: 1.85;
}

.prose p {
  margin: 0 0 1.1em;
}

.prose ul {
  margin: 0 0 1.1em;
  padding-left: 1.25em;
}

.prose li {
  margin-bottom: 0.35em;
}

.prose blockquote {
  margin: 0 0 1.1em;
  padding-left: 14px;
  border-left: 2px solid var(--line);
  color: var(--muted);
}

.prose code {
  padding: 1px 5px;
  border-radius: 4px;
  background: color-mix(in srgb, var(--fg) 7%, transparent);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.88em;
}

.prose strong {
  font-weight: 600;
}

.prose img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 1.2em 0;
  border-radius: 8px;
}

.entry-link {
  margin: 4px 0 18px;
  font-size: 14.5px;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-bottom: 8px;
  color: var(--faint);
  font-size: 13px;
}

.entry-nav {
  padding: 26px 0 10px;
  border-top: 1px solid var(--line);
  font-size: 14.5px;
}

.entry-nav a {
  color: var(--muted);
}

/* 页脚 */

.site-foot {
  margin-top: 30px;
  padding: 18px 0 36px;
  border-top: 1px solid var(--line);
  color: var(--faint);
  font-size: 12.5px;
}

.foot-links {
  padding-bottom: 8px;
}

.foot-label {
  display: block;
  margin-bottom: 8px;
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--faint);
}

.foot-links a {
  display: grid;
  grid-template-columns: 104px minmax(0, 1fr) 18px;
  align-items: baseline;
  gap: 12px;
  padding: 10px 0;
  color: var(--muted);
  font-size: 13px;
}

.foot-links a + a {
  border-top: 1px solid var(--line);
}

.foot-links a b {
  font-weight: 500;
  color: var(--fg);
  font-variant-numeric: tabular-nums;
}

.foot-links a span {
  overflow: hidden;
  font-size: 12.5px;
  color: var(--muted);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.foot-links a svg {
  justify-self: end;
  color: var(--faint);
  transition: transform 0.15s ease, color 0.15s ease;
}

.foot-links a:hover {
  text-decoration: none;
}

.foot-links a:hover b {
  color: var(--accent);
}

.foot-links a:hover svg {
  color: var(--accent);
  transform: translate(2px, -2px);
}

.foot-meta {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.site-foot a {
  color: var(--faint);
}

.site-foot a:hover {
  color: var(--fg);
}

@media (max-width: 520px) {
  .site-head {
    flex-wrap: wrap;
    padding-top: 26px;
  }

  .site-head nav {
    gap: 13px;
    font-size: 13px;
  }

  .hero h1 {
    font-size: 23px;
  }

  .entry h1 {
    font-size: 22px;
  }

  .prose {
    font-size: 16px;
  }

  .foot-links a {
    grid-template-columns: 92px minmax(0, 1fr) 16px;
    gap: 8px;
  }
}