:root {
  --bg: #0b1220;
  --card: #101a2f;
  --text: #e8eefc;
  --muted: #a9b6d6;
  --line: rgba(255, 255, 255, .08);
  --accent: #38bdf8;
  --accent2: #22c55e;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(900px 420px at 20% 10%, color-mix(in srgb, var(--accent) 20%, transparent), transparent 60%),
    radial-gradient(900px 420px at 80% 20%, color-mix(in srgb, var(--accent2) 16%, transparent), transparent 55%),
    linear-gradient(180deg, #060b16 0%, var(--bg) 100%);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", Helvetica, Arial, sans-serif;
}

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

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

.container {
  width: min(1080px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(6, 11, 22, .72);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
  font-weight: 700;
  letter-spacing: .5px;
  white-space: nowrap;
}

.logo,
.brand-logo {
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  border-radius: 10px;
}

.logo {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 10px 30px color-mix(in srgb, var(--accent) 18%, transparent);
}

.brand-logo {
  object-fit: cover;
  background: rgba(255, 255, 255, .08);
}

nav ul {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 0;
  margin: 0;
  overflow: auto;
  color: var(--muted);
  font-size: 14px;
  list-style: none;
}

nav li {
  padding: 6px 10px;
  border-radius: 10px;
  white-space: nowrap;
}

nav li:hover {
  color: var(--text);
  background: rgba(255, 255, 255, .06);
}

.nav-toggle {
  display: none;
  padding: 9px 12px;
  color: var(--text);
  background: rgba(255, 255, 255, .04);
  border: 1px solid var(--line);
  border-radius: 12px;
}

.btn,
.btn2 {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 14px;
  border-radius: 12px;
  font-weight: 600;
  white-space: nowrap;
}

.btn {
  color: var(--text);
  background: color-mix(in srgb, var(--accent) 16%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 32%, transparent);
}

.btn:hover {
  background: color-mix(in srgb, var(--accent) 24%, transparent);
}

.btn2 {
  color: var(--text);
  background: rgba(255, 255, 255, .04);
  border: 1px solid var(--line);
}

.btn2:hover {
  background: rgba(255, 255, 255, .07);
}

.hero {
  padding: 56px 0 22px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 22px;
  align-items: stretch;
}

.card {
  padding: 22px;
  background: color-mix(in srgb, var(--card) 86%, transparent);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, .25);
}

.hero-card {
  overflow: hidden;
  position: relative;
}

.hero-card::after {
  position: absolute;
  right: -90px;
  bottom: -120px;
  width: 260px;
  height: 260px;
  content: "";
  background: radial-gradient(circle, color-mix(in srgb, var(--accent) 22%, transparent), transparent 66%);
  pointer-events: none;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0 0 10px;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.15;
  letter-spacing: .3px;
}

.sub {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

.chips,
.term-list,
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.chip,
.term-list a {
  padding: 7px 10px;
  color: rgba(232, 238, 252, .92);
  background: rgba(255, 255, 255, .04);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 12px;
}

.tag-chip small {
  min-width: 20px;
  padding: 2px 6px;
  color: #06101d;
  background: var(--accent);
  border-radius: 999px;
  text-align: center;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.center-actions {
  justify-content: center;
}

.stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.stat {
  padding: 14px;
  background: rgba(255, 255, 255, .03);
  border: 1px dashed rgba(255, 255, 255, .14);
  border-radius: 16px;
}

.stat b {
  display: block;
  margin-bottom: 4px;
  font-size: 18px;
}

.stat span {
  color: var(--muted);
  font-size: 12px;
}

section {
  padding: 22px 0;
}

.section-title {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.section-title h2 {
  margin: 0;
  font-size: 18px;
  letter-spacing: .2px;
}

.section-title p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.grid-4,
.grid-3,
.taxonomy-grid {
  display: grid;
  gap: 12px;
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.item h3 {
  margin: 0 0 8px;
  font-size: 15px;
}

.item p,
.taxonomy-card p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

.muted {
  color: var(--muted);
}

.text-block {
  margin: 0;
  line-height: 1.85;
}

.spacer {
  height: 14px;
}

.kv {
  display: grid;
  gap: 6px;
}

.kv div {
  display: flex;
  gap: 10px;
}

.kv b {
  min-width: 84px;
  color: rgba(232, 238, 252, .85);
  font-weight: 600;
}

.note {
  margin-top: 10px;
  padding: 10px 12px;
  line-height: 1.6;
  background: rgba(255, 255, 255, .03);
  border: 1px solid rgba(255, 255, 255, .10);
  border-radius: 14px;
}

.small {
  font-size: 12px;
}

footer {
  padding: 18px 0;
  margin-top: 26px;
  color: var(--muted);
  background: rgba(6, 11, 22, .55);
  border-top: 1px solid var(--line);
  font-size: 13px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 14px;
  align-items: start;
}

.footer-brand,
.footer-title {
  color: rgba(232, 238, 252, .9);
  font-weight: 700;
}

.footer-copy {
  margin-top: 6px;
  line-height: 1.7;
}

.footer-link-grid {
  display: grid;
  gap: 8px;
  margin-top: 8px;
}

.page-wrap {
  padding-top: 34px;
}

.content-card,
.archive-hero,
.error-card {
  max-width: 880px;
  margin: 0 auto 18px;
}

.content-cover,
.post-cover img {
  width: 100%;
  object-fit: cover;
  background: rgba(255, 255, 255, .04);
}

.content-cover {
  max-height: 420px;
  margin: -6px 0 22px;
  border-radius: 14px;
}

.content-kicker {
  margin-bottom: 10px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.content-meta,
.post-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  color: var(--muted);
  font-size: 12px;
}

.article-content {
  margin-top: 24px;
  color: rgba(232, 238, 252, .92);
  line-height: 1.9;
}

.article-content h1,
.article-content h2,
.article-content h3 {
  margin-top: 1.6em;
}

.article-content a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-content blockquote {
  margin: 20px 0;
  padding: 12px 16px;
  color: var(--muted);
  background: rgba(255, 255, 255, .04);
  border-left: 3px solid var(--accent);
  border-radius: 12px;
}

.article-content pre,
.article-content code {
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
}

.article-content pre {
  overflow: auto;
  padding: 16px;
  background: rgba(0, 0, 0, .28);
  border: 1px solid var(--line);
  border-radius: 14px;
}

.article-content code {
  padding: 2px 5px;
  background: rgba(255, 255, 255, .06);
  border-radius: 6px;
}

.article-content pre code {
  padding: 0;
  background: transparent;
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
}

.article-content th,
.article-content td {
  padding: 10px;
  border: 1px solid var(--line);
}

.bottom-terms {
  margin-top: 22px;
}

.post-list {
  display: grid;
  gap: 14px;
}

.post-card {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 18px;
}

.post-cover img {
  height: 150px;
  border-radius: 14px;
}

.post-card h2 {
  margin: 8px 0;
  font-size: 20px;
}

.post-card p {
  margin: 0 0 12px;
  color: var(--muted);
  line-height: 1.7;
}

.slim-list .post-card {
  grid-template-columns: 1fr;
  box-shadow: none;
}

.slim-list .post-cover {
  display: none;
}

.archive-group h2,
.archive-month h3 {
  margin: 0 0 12px;
}

.archive-month + .archive-month {
  margin-top: 22px;
}

.taxonomy-grid {
  grid-template-columns: repeat(3, 1fr);
}

.taxonomy-card h2 {
  margin: 0 0 8px;
  font-size: 18px;
}

.taxonomy-card span {
  display: inline-flex;
  margin-top: 12px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
}

.taxonomy-children {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.taxonomy-children a {
  padding: 6px 9px;
  color: var(--muted);
  background: rgba(255, 255, 255, .04);
  border-radius: 999px;
  font-size: 12px;
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 20px;
}

.page-disabled,
.page-current {
  padding: 10px 14px;
  color: var(--muted);
  background: rgba(255, 255, 255, .03);
  border: 1px solid var(--line);
  border-radius: 12px;
}

.empty {
  color: var(--muted);
  text-align: center;
}

.author-hero {
  display: flex;
  align-items: center;
  gap: 18px;
}

.author-avatar {
  width: 82px;
  height: 82px;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: 22px;
}

.error-card {
  text-align: center;
}

.error-card h1 {
  font-size: clamp(54px, 13vw, 120px);
}

@media (max-width: 920px) {
  .container {
    width: min(100% - 32px, 1080px);
  }

  .hero-grid,
  .footer-grid,
  .post-card {
    grid-template-columns: 1fr;
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-3,
  .taxonomy-grid {
    grid-template-columns: 1fr;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav {
    flex-wrap: wrap;
  }

  .nav nav {
    display: none;
    flex: 1 0 100%;
    order: 4;
  }

  .site-header.is-open nav {
    display: block;
  }

  nav ul {
    display: grid;
    gap: 8px;
    padding-top: 10px;
  }
}

@media (max-width: 620px) {
  .brand span:last-child {
    max-width: 13em;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .nav-cta {
    display: none;
  }

  .grid-4,
  .stats {
    grid-template-columns: 1fr;
  }

  .section-title {
    align-items: flex-start;
    flex-direction: column;
  }

  .kv div,
  .author-hero {
    align-items: flex-start;
    flex-direction: column;
  }

  .card {
    padding: 18px;
  }
}