:root {
  color-scheme: light;
  --paper: #f8f6f1;
  --surface: #fffdfa;
  --ink: #2b2a26;
  --muted: #68645c;
  --line: #ddd8cf;
  --accent: #7b4d35;
}

* { box-sizing: border-box; }

html { font-size: 16px; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Noto Serif TC", "Source Han Serif TC", "Songti TC", "PMingLiU", serif;
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-underline-offset: 0.2em; }
a:hover { color: #4f2d1f; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }

.site-shell { min-height: 100vh; }
.site-header, .site-footer, main { width: min(100% - 2.5rem, 74rem); margin-inline: auto; }

.site-header {
  min-height: 5.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--line);
  font-family: "Noto Sans TC", "Microsoft JhengHei", sans-serif;
}

.site-name { color: var(--ink); font-weight: 700; letter-spacing: 0.08em; text-decoration: none; }
.preview-label { border: 1px solid var(--line); border-radius: 999px; padding: 0.15rem 0.7rem; color: var(--muted); font-size: 0.78rem; }
.site-footer { margin-top: 6rem; padding: 1.5rem 0 3rem; border-top: 1px solid var(--line); color: var(--muted); font: 0.8rem "Noto Sans TC", "Microsoft JhengHei", sans-serif; }

.eyebrow { margin: 0 0 0.9rem; color: var(--accent); font: 700 0.78rem "Noto Sans TC", "Microsoft JhengHei", sans-serif; letter-spacing: 0.13em; }
.home-intro { max-width: 47rem; padding: clamp(4rem, 9vw, 8rem) 0 5rem; }
.home-intro h1 { margin: 0 0 1.4rem; font-size: clamp(2rem, 4.5vw, 3.5rem); line-height: 1.4; letter-spacing: 0.025em; }
.home-intro > p:last-child { max-width: 38rem; margin: 0; color: var(--muted); font-size: 1.06rem; }
.article-list { max-width: 47rem; }
.section-heading { border-bottom: 1px solid var(--line); padding-bottom: 0.6rem; }
.section-heading h2 { margin: 0; font-size: 1.45rem; }
.article-card { padding: 1.8rem 0 2rem; border-bottom: 1px solid var(--line); }
.article-card-cover { display: block; width: min(100%, 25rem); margin: 0 0 1.25rem; overflow: hidden; border-radius: 0.8rem; background: var(--line); }
.article-card-cover img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; }
.article-date, .article-meta { margin: 0; color: var(--muted); font: 0.88rem "Noto Sans TC", "Microsoft JhengHei", sans-serif; }
.article-card h3 { margin: 0.8rem 0 1.2rem; font-size: clamp(1.25rem, 2.6vw, 1.6rem); line-height: 1.6; }
.article-card h3 a { color: var(--ink); text-decoration: none; }
.article-card h3 a:hover { color: var(--accent); text-decoration: underline; }
.article-card-link { margin: 0; font: 0.9rem "Noto Sans TC", "Microsoft JhengHei", sans-serif; }

.article { max-width: 47rem; margin-inline: auto; }
.back-nav { padding-top: 2.5rem; font: 0.9rem "Noto Sans TC", "Microsoft JhengHei", sans-serif; }
.article-header { padding: 3rem 0 2.25rem; border-bottom: 1px solid var(--line); }
.article-header h1 { margin: 0 0 1.4rem; font-size: clamp(1.85rem, 4vw, 2.9rem); line-height: 1.5; letter-spacing: 0.025em; overflow-wrap: anywhere; }
.article-cover { max-width: 25rem; margin: 2rem auto 0; }
.article-cover img { display: block; width: 100%; height: auto; border-radius: 0.8rem; }
.article-body { padding-top: 2rem; font-size: clamp(1.03rem, 1.4vw, 1.13rem); line-height: 2; letter-spacing: 0.015em; overflow-wrap: break-word; }
.article-body p { margin: 0 0 1.2em; }
.article-body p:first-child { color: var(--accent); font-weight: 700; }
.article-body h2 { margin: 3.2rem 0 1.3rem; font-size: clamp(1.38rem, 2.3vw, 1.7rem); line-height: 1.55; letter-spacing: 0.02em; }
.article-body strong { font-weight: 700; }
.article-source { margin-top: 3.5rem; padding-top: 1.25rem; border-top: 1px solid var(--line); color: var(--muted); font: 0.9rem "Noto Sans TC", "Microsoft JhengHei", sans-serif; }

@media (max-width: 40rem) {
  .site-header, .site-footer, main { width: min(100% - 2rem, 74rem); }
  .site-header { min-height: 4.5rem; }
  .home-intro { padding-block: 3.5rem 4rem; }
  .article-header { padding-block: 2rem 1.6rem; }
  .article-body { padding-top: 1.4rem; line-height: 1.85; }
  .article-body h2 { margin-top: 2.5rem; }
}