:root {
  --ink: #17362f;
  --muted: #65756f;
  --paper: #f6f3e9;
  --card: #fffdf7;
  --line: #d9ddd4;
  --accent: #b97924;
  --accent-soft: rgba(179, 121, 36, 0.1);
  --max: 760px;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--paper);
  color: var(--ink);
  font-family: ui-serif, "Noto Serif TC", "PingFang TC", serif;
  line-height: 1.85;
}

body {
  margin: 0;
}

.site-nav {
  border-bottom: 1px solid var(--line);
  font-family: ui-sans-serif, system-ui, sans-serif;
}

.site-nav__inner {
  display: flex;
  max-width: 1080px;
  align-items: center;
  justify-content: space-between;
  margin: auto;
  padding: 18px 24px;
}

.brand {
  color: var(--ink);
  font-weight: 800;
  letter-spacing: 0.06em;
  text-decoration: none;
}

.site-nav a:not(.brand) {
  color: var(--muted);
  text-decoration: none;
}

.hero,
.article-header {
  max-width: var(--max);
  margin: 0 auto;
  padding: 64px 24px 28px;
}

.eyebrow {
  color: var(--accent);
  font: 700 0.76rem/1.2 ui-sans-serif, system-ui, sans-serif;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  margin: 0.24em 0;
  font-size: clamp(1.85rem, 4vw, 2.65rem);
  line-height: 1.16;
}

.hero h1 {
  max-width: 620px;
}

.deck {
  max-width: 620px;
  color: var(--muted);
  font-size: 1rem;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--muted);
  font: 500 0.88rem/1.5 ui-sans-serif, system-ui, sans-serif;
}

.feature {
  max-width: 860px;
  margin: 8px auto 46px;
  padding: 0 24px;
}

.feature img,
.article-body img {
  display: block;
  width: 100%;
  border-radius: 12px;
}

.article-body {
  max-width: var(--max);
  margin: auto;
  padding: 0 24px 96px;
}

.article-body h1 {
  display: none;
}

.article-body h2 {
  margin: 2.4em 0 0.65em;
  font-size: 1.58rem;
  line-height: 1.35;
}

.article-body h3 {
  margin-top: 2em;
  font-size: 1.25rem;
}

.article-body p {
  margin: 1.25em 0;
}

.article-body a {
  color: #97601b;
  text-underline-offset: 3px;
}

.article-body figure {
  margin: 2.2em 0;
}

.article-body blockquote {
  margin: 2em 0;
  border-left: 4px solid var(--accent);
  padding: 0.3em 0 0.3em 1.4em;
  color: var(--muted);
}

pre {
  overflow: auto;
  border-radius: 12px;
  background: #18372f;
  color: #f7f2e5;
  padding: 20px;
}

code {
  font-family: ui-monospace, monospace;
}

.post-grid {
  display: grid;
  max-width: 1080px;
  grid-template-columns: repeat(auto-fill, minmax(260px, 360px));
  gap: 18px;
  justify-content: start;
  margin: auto;
  padding: 12px 24px 96px;
}

.post-card {
  display: flex;
  overflow: hidden;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--card);
  color: inherit;
  text-decoration: none;
  transition: transform 0.2s ease, border-color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}

.post-card:hover {
  border-color: #cfd8cd;
  background: #fffefb;
  box-shadow: 0 12px 30px rgba(23, 54, 47, 0.055);
  transform: translateY(-2px);
}

.post-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.post-card__body {
  padding: 18px;
}

.post-card h2 {
  margin: 0.35em 0;
  font-size: 1.18rem;
  line-height: 1.4;
}

.post-card p {
  color: var(--muted);
  font-size: 0.95rem;
}

.comment-panel {
  margin-top: 54px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 253, 247, 0.84);
  padding: 24px;
}

.comment-panel h2 {
  margin-top: 0.35em;
}

.comment-panel p {
  color: var(--muted);
}

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

.comment-button {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  border: 1px solid rgba(179, 121, 36, 0.28);
  border-radius: 999px;
  background: var(--accent-soft);
  color: #7c4f18;
  font: 800 0.92rem/1 ui-sans-serif, system-ui, sans-serif;
  padding: 0 16px;
  text-decoration: none;
}

.comment-button:hover {
  background: rgba(179, 121, 36, 0.14);
}

.empty {
  max-width: var(--max);
  margin: auto;
  padding: 40px 24px 100px;
  color: var(--muted);
}

@media (max-width: 640px) {
  .hero,
  .article-header {
    padding-top: 46px;
  }

  .site-nav__inner {
    padding: 15px 18px;
  }

  .article-header,
  .article-body,
  .feature,
  .post-grid {
    padding-right: 18px;
    padding-left: 18px;
  }

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