/* Shared styles for feature sub-pages */
:root {
  --bg:        #fdf9f5;
  --bg-soft:   #f6efe6;
  --bg-mint:   #eaf2ea;
  --ink:       #2a3a2e;
  --ink-soft:  #5a6b5e;
  --pink:      #e08aa3;
  --pink-deep: #c2627e;
  --green:     #7fa372;
  --green-deep:#4f7349;
  --gold:      #c9a26a;
  --line:      #d8d0c4;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "Noto Sans TC", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 {
  font-family: "Noto Serif TC", "Songti TC", serif;
  font-weight: 600;
  letter-spacing: 0.04em;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* Nav */
nav {
  position: fixed; top: 0; left: 0; right: 0;
  background: rgba(253, 249, 245, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  z-index: 100;
  padding: 0.9rem 2rem;
}
.nav-inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; justify-content: space-between; align-items: center;
}
.brand-back {
  font-family: "Noto Serif TC", serif;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--green-deep);
  display: flex; align-items: center; gap: 0.6rem;
  transition: color 0.2s;
}
.brand-back:hover { color: var(--pink-deep); }
.brand-back .arrow {
  font-size: 1.2rem;
  color: var(--pink-deep);
}
.crumbs {
  font-size: 0.85rem;
  color: var(--ink-soft);
  letter-spacing: 0.1em;
}

/* Hero */
.hero {
  height: 60vh;
  min-height: 380px;
  position: relative;
  display: flex; align-items: center; justify-content: center;
  text-align: center;
  overflow: hidden;
  margin-top: 60px;
}
.hero-bg {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center;
  filter: brightness(0.65);
}
.hero-bg::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(42, 58, 46, 0.25) 0%, rgba(42, 58, 46, 0.55) 100%);
}
.hero-content {
  position: relative; z-index: 2;
  color: #fff;
  padding: 0 1.5rem;
  max-width: 800px;
}
.hero-tag {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.5em;
  padding: 0.4rem 1.4rem;
  border: 1px solid rgba(255,255,255,0.5);
  border-radius: 999px;
  margin-bottom: 1.4rem;
  backdrop-filter: blur(6px);
}
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  margin-bottom: 1rem;
  text-shadow: 0 2px 24px rgba(0,0,0,0.35);
  line-height: 1.3;
}
.hero p.sub {
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  font-family: "Noto Serif TC", serif;
  opacity: 0.95;
  text-shadow: 0 1px 8px rgba(0,0,0,0.3);
}

/* Article body */
.article {
  max-width: 820px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
}
.lead {
  font-family: "Noto Serif TC", serif;
  font-size: 1.2rem;
  color: var(--ink);
  border-left: 3px solid var(--pink);
  padding-left: 1.4rem;
  margin-bottom: 2.5rem;
  line-height: 1.9;
}
.article h2 {
  font-size: 1.7rem;
  margin: 3rem 0 1rem;
  color: var(--green-deep);
  display: flex;
  align-items: center;
  gap: 0.8rem;
}
.article h2::before {
  content: '';
  width: 28px;
  height: 2px;
  background: var(--pink);
}
.article h3 {
  font-size: 1.2rem;
  margin: 1.8rem 0 0.6rem;
  color: var(--pink-deep);
}
.article p {
  color: var(--ink-soft);
  margin-bottom: 1.2rem;
  font-size: 1rem;
}
.article p strong { color: var(--pink-deep); font-weight: 600; }
.article ul {
  margin: 1rem 0 1.5rem 1.5rem;
  color: var(--ink-soft);
}
.article ul li { margin-bottom: 0.5rem; }
.article ul li::marker { color: var(--pink); }

/* Info / fact cards */
.fact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin: 2rem 0;
}
.fact-card {
  background: var(--bg-soft);
  padding: 1.2rem 1.4rem;
  border-radius: 4px;
  border-left: 3px solid var(--green);
}
.fact-card .fact-label {
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  color: var(--green-deep);
  font-weight: 700;
  margin-bottom: 0.4rem;
}
.fact-card .fact-value {
  font-family: "Noto Serif TC", serif;
  font-size: 1rem;
  color: var(--ink);
  line-height: 1.5;
}
.fact-card .fact-value strong {
  color: var(--pink-deep);
  font-size: 1.2em;
}

/* Photo grids */
.photo-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
  margin: 2rem 0;
}
.photo-row.three { grid-template-columns: repeat(3, 1fr); }
.photo-row img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: 3px;
  transition: transform 0.5s;
}
.photo-row a:hover img { transform: scale(1.02); }

.photo-full {
  margin: 2.5rem -1.5rem;
  border-radius: 3px;
  overflow: hidden;
}
.photo-full img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
}

/* Note boxes */
.note {
  background: var(--bg-mint);
  border-left: 3px solid var(--green);
  padding: 1.2rem 1.5rem;
  margin: 2rem 0;
  color: var(--green-deep);
  border-radius: 0 4px 4px 0;
}
.note strong { color: var(--pink-deep); font-weight: 700; }
.note.warn {
  background: #fdf3f5;
  border-left-color: var(--pink-deep);
  color: var(--pink-deep);
}

/* Back CTA */
.back-cta {
  background: var(--bg-mint);
  padding: 4rem 1.5rem;
  text-align: center;
}
.back-cta h2 {
  font-size: 1.5rem;
  color: var(--ink);
  margin-bottom: 1rem;
}
.back-cta p {
  color: var(--ink-soft);
  margin-bottom: 2rem;
}
.btn {
  display: inline-block;
  padding: 0.85rem 2rem;
  font-size: 0.95rem;
  letter-spacing: 0.15em;
  border-radius: 2px;
  margin: 0 0.4rem 0.6rem;
  transition: all 0.25s;
  cursor: pointer;
}
.btn-primary {
  background: var(--pink-deep);
  color: #fff;
  border: 1px solid var(--pink-deep);
}
.btn-primary:hover { background: var(--green-deep); border-color: var(--green-deep); }
.btn-ghost {
  background: transparent;
  color: var(--green-deep);
  border: 1px solid var(--green-deep);
}
.btn-ghost:hover { background: var(--green-deep); color: #fff; }

/* Other features grid (related links) */
.related {
  background: var(--bg);
  padding: 4rem 1.5rem;
  border-top: 1px solid var(--line);
}
.related-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.related-label {
  font-size: 0.78rem;
  letter-spacing: 0.5em;
  color: var(--pink-deep);
  text-align: center;
  margin-bottom: 0.5rem;
}
.related h3 {
  text-align: center;
  font-size: 1.5rem;
  margin-bottom: 2rem;
  color: var(--ink);
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}
.related-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  transition: all 0.25s;
}
.related-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 24px rgba(42, 58, 46, 0.08);
  border-color: var(--pink);
}
.related-item img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}
.related-item .ri-body { padding: 0.9rem 1rem; }
.related-item h4 {
  font-family: "Noto Serif TC", serif;
  font-size: 1rem;
  color: var(--ink);
  margin-bottom: 0.2rem;
}
.related-item .ri-tag {
  font-size: 0.75rem;
  color: var(--pink-deep);
  letter-spacing: 0.1em;
}

/* Footer */
footer {
  background: var(--ink);
  color: var(--bg);
  padding: 2.5rem 1.5rem;
  text-align: center;
}
footer .brand-foot {
  color: var(--pink);
  font-family: "Noto Serif TC", serif;
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  letter-spacing: 0.1em;
}
footer p {
  font-size: 0.85rem;
  opacity: 0.8;
  margin-bottom: 0.3rem;
}
footer .tiny {
  font-size: 0.74rem;
  opacity: 0.5;
  margin-top: 1rem;
  letter-spacing: 0.15em;
}

/* Responsive */
@media (max-width: 700px) {
  nav { padding: 0.7rem 1rem; }
  .brand-back { font-size: 0.88rem; }
  .crumbs { display: none; }
  .article { padding: 3rem 1.2rem; }
  .article h2 { font-size: 1.4rem; }
  .photo-row { grid-template-columns: 1fr; }
  .photo-row.three { grid-template-columns: 1fr; }
  .photo-full { margin: 2rem -1.2rem; }
  .hero { height: 50vh; min-height: 320px; }
}