:root {
  color-scheme: light;
  --bg: #f7f5ef;
  --surface: #fffdf8;
  --text: #20242a;
  --muted: #686f78;
  --line: #ded8cc;
  --accent: #0f766e;
  --accent-strong: #14532d;
  --shadow: 0 14px 45px rgba(58, 51, 38, 0.1);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Microsoft YaHei", sans-serif;
  line-height: 1.75;
  background:
    linear-gradient(rgba(247, 245, 239, 0.86), rgba(247, 245, 239, 0.95)),
    url('/images/background.png') center top / cover fixed;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(222, 216, 204, 0.8);
  background: rgba(255, 253, 248, 0.88);
  backdrop-filter: blur(14px);
}

.nav {
  width: min(1120px, calc(100% - 32px));
  min-height: 64px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  font-size: 1.05rem;
  font-weight: 800;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--muted);
  font-size: 0.94rem;
  white-space: nowrap;
}

.nav-links a:hover,
.site-footer a:hover,
.section-heading a:hover {
  color: var(--accent);
}

.hero {
  width: min(1120px, calc(100% - 32px));
  min-height: 360px;
  margin: 0 auto;
  display: grid;
  align-items: center;
}

.hero h1 {
  margin: 0;
  font-size: clamp(3rem, 8vw, 6.5rem);
  line-height: 0.95;
}

.hero p {
  max-width: 620px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1.12rem;
}

.eyebrow {
  margin: 0 0 16px !important;
  color: var(--accent-strong) !important;
  font-size: 0.95rem !important;
  font-weight: 700;
}

.content-wrap {
  width: min(980px, calc(100% - 32px));
  margin: 0 auto 72px;
}

.content-wrap.narrow {
  width: min(780px, calc(100% - 32px));
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 18px;
}

.section-heading h2,
.content-wrap h1 {
  margin: 0;
  font-size: 1.8rem;
  line-height: 1.2;
}

.section-heading a {
  color: var(--muted);
}

.post-list {
  display: grid;
  gap: 16px;
}

.post-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
  background: rgba(255, 253, 248, 0.88);
  box-shadow: var(--shadow);
}

.post-card h2 {
  margin: 6px 0 8px;
  font-size: 1.35rem;
  line-height: 1.35;
}

.post-card p {
  margin: 0;
  color: var(--muted);
}

time {
  color: var(--muted);
  font-size: 0.9rem;
}

.meta-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.meta-list a {
  border: 1px solid rgba(15, 118, 110, 0.28);
  border-radius: 999px;
  padding: 2px 10px;
  color: var(--accent);
  font-size: 0.86rem;
  background: rgba(236, 253, 245, 0.7);
}

.article {
  width: min(820px, calc(100% - 32px));
  margin: 64px auto 84px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: clamp(24px, 5vw, 48px);
  background: rgba(255, 253, 248, 0.93);
  box-shadow: var(--shadow);
}

.article-header {
  margin-bottom: 28px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.article-header h1 {
  margin: 8px 0 0;
  font-size: clamp(2rem, 6vw, 3.3rem);
  line-height: 1.14;
}

.prose :where(h2, h3, h4) {
  margin-top: 2em;
  line-height: 1.35;
}

.prose :where(p, ul, ol, blockquote, pre) {
  margin: 1.1em 0;
}

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

.prose img {
  max-width: 100%;
  border-radius: 8px;
}

.prose pre {
  overflow-x: auto;
  border-radius: 8px;
  padding: 18px;
}

.prose code {
  font-family: "JetBrains Mono", Consolas, monospace;
}

.archive-list {
  margin-top: 24px;
  display: grid;
  gap: 10px;
}

.archive-list a {
  display: grid;
  grid-template-columns: 116px 1fr;
  gap: 16px;
  border-bottom: 1px solid var(--line);
  padding: 10px 0;
}

.term-grid {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
}

.term-grid a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px 16px;
  background: rgba(255, 253, 248, 0.9);
}

.site-footer {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 44px;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  color: var(--muted);
}

@media (max-width: 720px) {
  .nav {
    min-height: auto;
    padding: 14px 0;
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links {
    width: 100%;
    overflow-x: auto;
    gap: 14px;
    padding-bottom: 2px;
  }

  .hero {
    min-height: 300px;
  }

  .archive-list a {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .article {
    margin-top: 32px;
  }
}
