/* ============================================================
   LIT Longevity — Design System
   Aesthetic: Japanese Minimal Luxury + Editorial Wellness
   ============================================================ */

/* ── Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;1,300;1,400&family=DM+Sans:wght@300;400;500&display=swap');

/* ── Tokens ── */
:root {
  --cream:        #FAF8F4;
  --cream-mid:    #F2EDE4;
  --cream-deep:   #E8DFCF;
  --forest:       #2D5016;
  --forest-mid:   #3D6B20;
  --forest-light: #4A7C2F;
  --gold:         #B49B5A;
  --gold-light:   #C9B07A;
  --warm-black:   #1C1917;
  --warm-gray:    #6B6560;
  --warm-gray-lt: #9C958F;
  --border:       #DDD5C8;
  --border-light: #EDE6DB;
  --white:        #FFFFFF;
  --pink-accent:  #C4738A;
  --teal-accent:  #3A7A72;
  --gold-accent:  #A07B3C;

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --shadow-sm: 0 1px 4px rgba(28,25,23,0.06);
  --shadow-md: 0 4px 16px rgba(28,25,23,0.08);
  --shadow-lg: 0 8px 32px rgba(28,25,23,0.10);

  --nav-h: 68px;
  --ann-h: 40px;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--cream);
  color: var(--warm-black);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
button { cursor: pointer; border: none; background: none; font-family: var(--font-body); }
input, textarea { font-family: var(--font-body); }
ul, ol { list-style: none; }

/* ── Announcement Bar ── */
.ann-bar {
  background: #EAEC8A;
  color: var(--warm-black);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-align: center;
  padding: 0 1rem;
  height: var(--ann-h);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
}
.ann-bar span { display: inline-flex; align-items: center; gap: 0.5rem; }
.ann-bar .ann-dot { width: 4px; height: 4px; background: var(--warm-black); border-radius: 50%; opacity: 0.4; }

/* ── Navigation ── */
.nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(250,248,244,0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  height: var(--nav-h);
}
.nav-inner {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 2rem;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav-logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
  flex-shrink: 0;
}
.nav-logo-en {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--warm-black);
}
.nav-logo-zh {
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  color: var(--warm-gray);
  margin-top: 1px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  flex: 1;
  justify-content: center;
}
.nav-link {
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--warm-gray);
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius-sm);
  transition: color 0.2s;
}
.nav-link:hover { color: var(--warm-black); }
.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}
.nav-lang-btn {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--warm-gray);
  border: 1px solid var(--border);
  padding: 0.35rem 0.75rem;
  border-radius: 2rem;
  transition: all 0.2s;
}
.nav-lang-btn:hover { color: var(--warm-black); border-color: var(--warm-gray); }
.nav-cart-btn {
  position: relative;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--warm-black);
}
.nav-cart-btn:hover { color: var(--warm-black); }
.cart-badge {
  position: absolute;
  top: 4px;
  right: 4px;
  background: var(--warm-black);
  color: white;
  font-size: 0.6rem;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  display: none;
  align-items: center;
  justify-content: center;
  font-weight: 500;
}
.nav-cta {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--warm-black);
  color: white;
  padding: 0.5rem 1.1rem;
  border-radius: 3px;
  transition: background 0.2s;
}
.nav-cta:hover { background: #2A2520; }
.nav-mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav-mobile-toggle span {
  width: 22px;
  height: 1.5px;
  background: var(--warm-black);
  display: block;
  transition: all 0.3s;
}

/* ── Hero ── */
.hero {
  min-height: 88vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  max-width: 1320px;
  margin: 0 auto;
  padding: 5rem 2rem 4rem;
  gap: 4rem;
}
.hero-content { max-width: 580px; }
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--warm-black);
  background: #EAEC8A;
  padding: 0.3rem 0.9rem;
  border-radius: 3px;
  margin-bottom: 1.75rem;
  font-weight: 500;
}
.hero-eyebrow::before { display: none; }
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 5vw, 5.2rem);
  font-weight: 300;
  line-height: 1.08;
  color: var(--warm-black);
  margin-bottom: 1.75rem;
}
.hero-title em {
  font-style: italic;
  color: var(--warm-black);
}
.hero-subtitle {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--warm-gray);
  margin-bottom: 2.5rem;
  max-width: 420px;
}
.hero-actions {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}
.btn-primary {
  background: var(--warm-black);
  color: white;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.9rem 2rem;
  border-radius: 3px;
  transition: background 0.2s, transform 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.btn-primary:hover { background: #2A2520; transform: translateY(-1px); }
.btn-ghost {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--warm-black);
  border: 1.5px solid var(--warm-black);
  padding: 0.9rem 1.75rem;
  border-radius: 3px;
  transition: all 0.2s;
}
.btn-ghost:hover { background: var(--warm-black); color: white; }
.hero-stats {
  display: flex;
  gap: 2.5rem;
  margin-top: 3.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-light);
}
.hero-stat-item {}
.hero-stat-num {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 300;
  color: var(--warm-black);
  line-height: 1;
}
.hero-stat-label {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--warm-gray);
  margin-top: 0.25rem;
  text-transform: uppercase;
}
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-img-wrap {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  width: 100%;
  max-width: 560px;
  aspect-ratio: 4/3;
  box-shadow: var(--shadow-lg);
}
.hero-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.hero-badge {
  position: absolute;
  bottom: -1rem;
  left: -1rem;
  background: white;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 1rem 1.25rem;
  box-shadow: var(--shadow-md);
}
.hero-badge-text {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--warm-black);
}
.hero-badge-sub {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
  margin-top: 2px;
}

/* ── Stats strip ── */
.stats-strip {
  background: var(--cream-deep);
  padding: 2rem 2rem;
  overflow: hidden;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.stats-strip-inner {
  max-width: 1320px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}
.stat-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--warm-black);
}
.stat-item svg { color: var(--gold); flex-shrink: 0; }
.stat-item-text {}
.stat-item-num {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--warm-black);
  line-height: 1;
}
.stat-item-label {
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--warm-gray);
  text-transform: uppercase;
  margin-top: 2px;
}

/* ── Section shared ── */
.section { padding: 6rem 2rem; }
.section-inner { max-width: 1320px; margin: 0 auto; }
.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.25rem;
}
.section-eyebrow::before {
  content: '';
  width: 20px;
  height: 1px;
  background: var(--gold);
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 3.5vw, 3.4rem);
  font-weight: 300;
  line-height: 1.15;
  color: var(--warm-black);
  margin-bottom: 1rem;
}
.section-title em { font-style: italic; color: var(--warm-black); }
.section-desc {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--warm-gray);
  max-width: 520px;
}

/* ── Products Section ── */
.products-section { background: var(--cream); }
.products-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 3.5rem;
  flex-wrap: wrap;
  gap: 1.5rem;
}
.products-filter {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.filter-btn {
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--warm-gray);
  border: 1px solid var(--border);
  padding: 0.4rem 1rem;
  border-radius: 2rem;
  transition: all 0.2s;
  background: transparent;
}
.filter-btn:hover, .filter-btn.active {
  background: var(--warm-black);
  color: white;
  border-color: var(--warm-black);
}
.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
@media (max-width: 1100px) { .products-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 768px)  { .products-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; } }
@media (max-width: 480px)  { .products-grid { grid-template-columns: 1fr; } }

.product-card {
  background: white;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.25s, box-shadow 0.25s;
  position: relative;
}
.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.product-card-img {
  aspect-ratio: 3/4;
  overflow: hidden;
  background: var(--cream-mid);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem 1rem;
}
.product-card-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.4s;
}
.product-card:hover .product-card-img img { transform: scale(1.04); }
.product-badge {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  background: var(--warm-black);
  color: white;
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.3rem 0.65rem;
  border-radius: 3px;
  z-index: 2;
}
.product-badge.beauty { background: var(--pink-accent); }
.product-badge.circulation { background: var(--gold-accent); }
.product-badge.vision { background: #5A4A8A; }
.product-body {
  padding: 1.25rem 1.25rem 1.5rem;
}
.product-name-en {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 400;
  color: var(--warm-black);
  line-height: 1.2;
}
.product-name-zh {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--warm-gray);
  margin-top: 0.2rem;
}
.product-tagline {
  font-size: 0.8rem;
  color: var(--warm-gray);
  margin-top: 0.6rem;
  line-height: 1.5;
}
.product-ingredients {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.85rem;
}
.ingr-tag {
  font-size: 0.65rem;
  letter-spacing: 0.04em;
  color: var(--forest);
  background: #EEF5E9;
  padding: 0.2rem 0.55rem;
  border-radius: 2rem;
}
.product-stars {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.75rem;
}
.product-stars-icons {
  color: #C8A84B;
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  line-height: 1;
}
.product-stars-count {
  font-size: 0.68rem;
  color: var(--warm-gray);
  letter-spacing: 0.02em;
}
.product-footer {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-light);
}
.product-price {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 400;
  color: var(--warm-black);
}
.product-price sub {
  font-size: 0.65rem;
  color: var(--warm-gray);
  font-family: var(--font-body);
  vertical-align: middle;
}
.btn-add {
  width: 100%;
  text-align: center;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: transparent;
  color: var(--warm-black);
  border: 1.5px solid var(--warm-black);
  padding: 0.65rem 1rem;
  border-radius: 3px;
  transition: all 0.2s;
}
.btn-add:hover { background: var(--warm-black); color: white; }

/* ── Lifestyle Editorial ── */
.lifestyle-section {
  background: var(--cream-mid);
  padding: 0;
  overflow: hidden;
}
.lifestyle-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 520px;
}
.lifestyle-row.reverse { direction: rtl; }
.lifestyle-row.reverse > * { direction: ltr; }
.lifestyle-img {
  overflow: hidden;
}
.lifestyle-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  transition: transform 0.6s ease;
}
.lifestyle-row:hover .lifestyle-img img { transform: scale(1.03); }
.lifestyle-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 5rem;
  background: var(--cream-mid);
}
.lifestyle-product-name {
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.75rem;
}
.lifestyle-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 2.8vw, 3rem);
  font-weight: 300;
  line-height: 1.15;
  color: var(--warm-black);
  margin-bottom: 1.25rem;
}
.lifestyle-title em { font-style: italic; color: var(--warm-black); }
.lifestyle-desc {
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--warm-gray);
  margin-bottom: 2rem;
}
.lifestyle-benefits {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 2rem;
}
.lifestyle-benefit {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.82rem;
  color: var(--warm-black);
}
.lifestyle-benefit::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--warm-black);
  border-radius: 50%;
  flex-shrink: 0;
}

/* ── Why Us Section ── */
.why-section { background: var(--cream); }
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3.5rem;
}
@media (max-width: 900px) { .why-grid { grid-template-columns: 1fr; } }
.why-card {
  background: white;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 2.25rem 2rem;
}
.why-icon {
  width: 48px;
  height: 48px;
  background: #EEF5E9;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--forest);
  margin-bottom: 1.25rem;
}
.why-card-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--warm-black);
  margin-bottom: 0.75rem;
}
.why-card-desc {
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--warm-gray);
}

/* ── Comparison table ── */
.comparison-wrap {
  margin-top: 4rem;
  background: white;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.comparison-header {
  display: grid;
  grid-template-columns: 2fr 1.5fr 1.5fr;
  background: var(--warm-black);
  color: white;
  padding: 1.25rem 2rem;
}
.comparison-header-cell {
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.9;
}
.comparison-header-cell.highlight {
  color: var(--gold-light);
  font-weight: 500;
}
.comparison-row {
  display: grid;
  grid-template-columns: 2fr 1.5fr 1.5fr;
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--border-light);
  align-items: center;
}
.comparison-row:last-child { border-bottom: none; }
.comparison-row:nth-child(even) { background: var(--cream); }
.comparison-row-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--warm-black);
}
.comparison-row-val {
  font-size: 0.82rem;
  color: var(--warm-gray);
}
.comparison-row-val.good {
  color: var(--forest);
  font-weight: 500;
}
.check-icon { color: var(--forest); }
.x-icon { color: #C0392B; opacity: 0.6; }

/* ── Stacks Section ── */
.stacks-section { background: var(--cream-mid); }
.stacks-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3.5rem;
}
@media (max-width: 900px) { .stacks-grid { grid-template-columns: 1fr; } }
.stack-card {
  background: white;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 2rem;
  position: relative;
  transition: transform 0.2s, box-shadow 0.2s;
}
.stack-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.stack-card.featured {
  border-color: var(--forest);
  border-width: 2px;
}
.stack-pill {
  display: inline-block;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--warm-black);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 3px;
  margin-bottom: 1rem;
}
.stack-pill.pop { background: var(--gold); }
.stack-name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--warm-black);
  margin-bottom: 0.25rem;
}
.stack-period {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--warm-gray);
  text-transform: uppercase;
  margin-bottom: 0.9rem;
}
.stack-desc {
  font-size: 0.85rem;
  line-height: 1.65;
  color: var(--warm-gray);
  margin-bottom: 1.5rem;
}
.stack-includes {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.75rem;
}
.stack-includes li {
  font-size: 0.8rem;
  color: var(--warm-gray);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.stack-includes li::before {
  content: '';
  width: 5px;
  height: 5px;
  background: var(--forest);
  border-radius: 50%;
  flex-shrink: 0;
}
.stack-price {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 300;
  color: var(--warm-black);
  margin-bottom: 0.3rem;
}
.stack-save {
  font-size: 0.72rem;
  color: var(--forest);
  letter-spacing: 0.04em;
  margin-bottom: 1.25rem;
}
.btn-stack {
  width: 100%;
  text-align: center;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--warm-black);
  color: white;
  padding: 0.85rem 1.5rem;
  border-radius: 3px;
  transition: all 0.2s;
  display: block;
}
.btn-stack:hover { background: #2A2520; }
.btn-stack.outlined {
  background: transparent;
  color: var(--warm-black);
  border: 1.5px solid var(--warm-black);
}
.btn-stack.outlined:hover { background: var(--warm-black); color: white; }

/* ── Science / Articles ── */
.articles-section { background: var(--cream); }
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
  margin-top: 3.5rem;
}
@media (max-width: 900px) { .articles-grid { grid-template-columns: 1fr; } }
.article-card {
  background: white;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}
.article-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.article-card-img {
  aspect-ratio: 16/9;
  overflow: hidden;
  position: relative;
}
.article-card-img-inner {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 300;
  font-style: italic;
  color: white;
  letter-spacing: 0.04em;
  padding: 1.5rem;
  text-align: center;
}
.article-card-body { padding: 1.5rem; }
.article-tag {
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  display: inline-block;
  margin-bottom: 0.5rem;
}
.article-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--warm-black);
  line-height: 1.3;
  margin-bottom: 0.5rem;
}
.article-excerpt {
  font-size: 0.8rem;
  line-height: 1.65;
  color: var(--warm-gray);
  margin-bottom: 1rem;
}
.article-read-more {
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: underline;
  text-underline-offset: 3px;
  color: var(--warm-black);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: gap 0.2s;
}
.article-card:hover .article-read-more { gap: 0.6rem; }

/* ── Quiz Section ── */
.quiz-section { background: var(--forest); color: white; }
.quiz-section .section-eyebrow { color: var(--gold-light); }
.quiz-section .section-eyebrow::before { background: var(--gold-light); }
.quiz-section .section-title { color: white; }
.quiz-section .section-title em { color: var(--gold-light); }
.quiz-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}
.quiz-perks {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin: 2.5rem 0;
}
.quiz-perk {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
}
.quiz-perk-icon {
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.12);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--gold-light);
}
.quiz-perk-text { font-size: 0.85rem; color: rgba(255,255,255,0.8); line-height: 1.5; }
.quiz-card {
  background: white;
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  color: var(--warm-black);
}
.quiz-q {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 400;
  margin-bottom: 1.25rem;
}
.quiz-options { display: flex; flex-direction: column; gap: 0.6rem; }
.quiz-opt {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s;
  font-size: 0.85rem;
  color: var(--warm-gray);
}
.quiz-opt:hover, .quiz-opt.selected {
  border-color: var(--warm-black);
  background: var(--cream);
  color: var(--warm-black);
}
.quiz-opt-dot {
  width: 16px;
  height: 16px;
  border: 2px solid var(--border);
  border-radius: 50%;
  flex-shrink: 0;
  transition: all 0.2s;
}
.quiz-opt.selected .quiz-opt-dot {
  border-color: var(--warm-black);
  background: var(--warm-black);
}
.quiz-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1.75rem;
}
.quiz-progress-wrap { flex: 1; margin-right: 1.5rem; }
.quiz-progress-label { font-size: 0.72rem; color: var(--warm-gray); margin-bottom: 0.35rem; }
.quiz-progress-bar {
  height: 4px;
  background: var(--border-light);
  border-radius: 2rem;
  overflow: hidden;
}
.quiz-progress-fill {
  height: 100%;
  background: var(--warm-black);
  border-radius: 2rem;
  transition: width 0.3s;
  width: 12%;
}
.quiz-btn-next {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--warm-black);
  color: white;
  padding: 0.65rem 1.5rem;
  border-radius: 3px;
  transition: background 0.2s;
}
.quiz-btn-next:hover { background: #2A2520; }

/* ── Newsletter ── */
.newsletter-section { background: var(--cream-mid); }
.newsletter-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}
.newsletter-form {
  margin-top: 2rem;
}
.newsletter-input-wrap {
  display: flex;
  border: 1.5px solid var(--warm-black);
  border-radius: 3px;
  overflow: hidden;
  background: white;
}
.newsletter-input {
  flex: 1;
  border: none;
  outline: none;
  padding: 0.85rem 1.5rem;
  font-size: 0.85rem;
  color: var(--warm-black);
  background: transparent;
}
.newsletter-input::placeholder { color: var(--warm-gray-lt); }
.newsletter-submit {
  background: var(--warm-black);
  color: white;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.85rem 1.75rem;
  border-radius: 0 3px 3px 0;
  transition: background 0.2s;
  flex-shrink: 0;
}
.newsletter-submit:hover { background: #2A2520; }
.newsletter-note {
  font-size: 0.72rem;
  color: var(--warm-gray);
  margin-top: 0.75rem;
}
.newsletter-img {
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 4/3;
}
.newsletter-img img { width: 100%; height: 100%; object-fit: cover; }

/* ── Footer ── */
.footer {
  background: var(--warm-black);
  color: rgba(255,255,255,0.8);
  padding: 5rem 2rem 2rem;
}
.footer-inner { max-width: 1320px; margin: 0 auto; }
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand-name {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 300;
  color: white;
  margin-bottom: 0.25rem;
}
.footer-brand-zh {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--gold-light);
  margin-bottom: 1rem;
}
.footer-tagline {
  font-size: 0.82rem;
  line-height: 1.65;
  color: rgba(255,255,255,0.5);
  max-width: 240px;
}
.footer-col-title {
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 1.25rem;
}
.footer-links { display: flex; flex-direction: column; gap: 0.65rem; }
.footer-links a {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.6);
  transition: color 0.2s;
}
.footer-links a:hover { color: white; }
.footer-bottom {
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.footer-disclaimer {
  font-size: 0.7rem;
  line-height: 1.6;
  color: rgba(255,255,255,0.3);
  max-width: 640px;
}
.footer-copy {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.3);
  white-space: nowrap;
}

/* ── Cart Sidebar ── */
.cart-overlay {
  position: fixed;
  inset: 0;
  background: rgba(28,25,23,0.4);
  z-index: 1900;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}
.cart-overlay.active { opacity: 1; pointer-events: all; }
.cart-sidebar {
  position: fixed;
  top: 0;
  right: 0;
  height: 100%;
  width: 420px;
  max-width: 100vw;
  background: white;
  z-index: 2000;
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
}
.cart-sidebar.open { transform: translateX(0); }
.cart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 1.75rem;
  border-bottom: 1px solid var(--border-light);
}
.cart-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--warm-black);
}
.cart-close {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--warm-gray);
  border: 1px solid var(--border);
  border-radius: 50%;
  transition: all 0.2s;
}
.cart-close:hover { color: var(--warm-black); border-color: var(--warm-black); }
.cart-items {
  flex: 1;
  overflow-y: auto;
  padding: 1.25rem 1.75rem;
}
.cart-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  height: 200px;
  color: var(--warm-gray-lt);
}
.cart-empty-icon { opacity: 0.3; }
.cart-empty-text {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 300;
}
.cart-item {
  display: flex;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border-light);
}
.cart-item:last-child { border-bottom: none; }
.cart-item-img {
  width: 64px;
  height: 80px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--cream-mid);
  flex-shrink: 0;
}
.cart-item-img img { width: 100%; height: 100%; object-fit: contain; padding: 0.3rem; }
.cart-item-info { flex: 1; min-width: 0; }
.cart-item-name {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--warm-black);
  line-height: 1.3;
}
.cart-item-price { font-size: 0.78rem; color: var(--warm-gray); margin-top: 0.2rem; }
.cart-item-qty {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.6rem;
}
.qty-btn {
  width: 26px;
  height: 26px;
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: var(--warm-gray);
  transition: all 0.15s;
}
.qty-btn:hover { border-color: var(--warm-black); color: var(--warm-black); }
.qty-val { font-size: 0.85rem; min-width: 20px; text-align: center; }
.cart-item-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.5rem;
}
.cart-item-total { font-size: 0.88rem; font-weight: 500; color: var(--warm-black); }
.cart-item-remove {
  color: var(--warm-gray-lt);
  transition: color 0.15s;
}
.cart-item-remove:hover { color: #C0392B; }
.cart-footer {
  padding: 1.25rem 1.75rem 1.5rem;
  border-top: 1px solid var(--border-light);
  background: var(--cream);
}
.cart-totals { margin-bottom: 1.25rem; }
.cart-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  color: var(--warm-gray);
  margin-bottom: 0.5rem;
}
.cart-row.total { 
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--warm-black);
  padding-top: 0.5rem;
  border-top: 1px solid var(--border-light);
  margin-top: 0.5rem;
}
.cart-discount-row { color: var(--forest); }
.cart-shipping-note {
  font-size: 0.72rem;
  color: var(--warm-gray);
  margin-bottom: 1rem;
  text-align: center;
}
.cart-checkout-btn {
  width: 100%;
  text-align: center;
  background: var(--warm-black);
  color: white;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 1rem;
  border-radius: 3px;
  transition: background 0.2s;
  display: block;
}
.cart-checkout-btn:hover { background: #2A2520; }

/* ── Toast ── */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(2rem);
  background: var(--warm-black);
  color: white;
  font-size: 0.82rem;
  padding: 0.75rem 1.5rem;
  border-radius: 2rem;
  z-index: 9999;
  opacity: 0;
  transition: all 0.3s;
  pointer-events: none;
  white-space: nowrap;
}
.toast.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ── Scroll Animations ── */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}
.fade-up:nth-child(2) { transition-delay: 0.1s; }
.fade-up:nth-child(3) { transition-delay: 0.2s; }
.fade-up:nth-child(4) { transition-delay: 0.3s; }
.fade-up:nth-child(5) { transition-delay: 0.4s; }
.fade-up:nth-child(6) { transition-delay: 0.5s; }
.fade-up:nth-child(7) { transition-delay: 0.6s; }
.fade-up:nth-child(8) { transition-delay: 0.7s; }

/* ── Mobile nav drawer ── */
.nav-drawer {
  display: none;
  position: fixed;
  top: calc(var(--ann-h) + var(--nav-h));
  left: 0;
  right: 0;
  background: white;
  border-bottom: 1px solid var(--border-light);
  padding: 1.5rem 2rem 2rem;
  z-index: 999;
  flex-direction: column;
  gap: 0.25rem;
  box-shadow: var(--shadow-md);
}
.nav-drawer.open { display: flex; }
.nav-drawer-link {
  font-size: 0.95rem;
  color: var(--warm-gray);
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border-light);
  transition: color 0.2s;
}
.nav-drawer-link:last-child { border-bottom: none; }
.nav-drawer-link:hover { color: var(--warm-black); }
.nav-drawer-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .hero { grid-template-columns: 1fr; min-height: auto; padding-top: 3.5rem; }
  .hero-visual { display: none; }
  .hero-content { max-width: 100%; }
  .quiz-inner { grid-template-columns: 1fr; }
  .newsletter-inner { grid-template-columns: 1fr; }
  .newsletter-img { display: none; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-mobile-toggle { display: flex; }
  .hero-stats { gap: 1.5rem; flex-wrap: wrap; }
  .stats-strip-inner { justify-content: center; gap: 1.5rem; }
  .lifestyle-row { grid-template-columns: 1fr; }
  .lifestyle-row.reverse { direction: ltr; }
  .lifestyle-content { padding: 3rem 2rem; }
  .lifestyle-img { min-height: 280px; }
  .section { padding: 4rem 1.25rem; }
  .why-grid { gap: 1rem; }
  .footer-top { grid-template-columns: 1fr; gap: 2rem; }
  .comparison-header, .comparison-row { padding: 0.85rem 1rem; }
  .stacks-grid { gap: 1rem; }
}
@media (max-width: 480px) {
  .hero { padding: 2.5rem 1.25rem 3rem; }
  .hero-title { font-size: 2.6rem; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .btn-primary, .btn-ghost { text-align: center; justify-content: center; }
  .products-header { flex-direction: column; align-items: flex-start; }
}

/* ── Ingredients Banner ── */
.ingredients-banner {
  position: relative;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  min-height: 560px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.ingredients-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(28, 25, 23, 0.48);
  z-index: 0;
}
.ingredients-banner-overlay {
  position: relative;
  z-index: 1;
  width: 100%;
  padding: 5rem 3rem;
  display: flex;
  align-items: center;
}
.ingredients-banner-content {
  max-width: 580px;
  color: white;
}
.ingredients-banner-eyebrow {
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.78);
  margin-bottom: 1rem;
  font-family: var(--font-body);
}
.ingredients-banner-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 4vw, 3.8rem);
  font-weight: 300;
  line-height: 1.1;
  color: white;
  margin-bottom: 1.25rem;
}
.ingredients-banner-title em {
  font-style: italic;
  color: #EAEC8A;
}
.ingredients-banner-desc {
  font-size: 0.95rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 2rem;
  max-width: 480px;
}
.ingredients-banner .btn-primary {
  background: white;
  color: var(--warm-black);
  border-color: white;
}
.ingredients-banner .btn-primary:hover {
  background: var(--cream);
  border-color: var(--cream);
}
@media (max-width: 768px) {
  .ingredients-banner { min-height: 460px; }
  .ingredients-banner-overlay { padding: 3.5rem 1.75rem; }
  .ingredients-banner-title { font-size: 2.2rem; }
}
@media (max-width: 480px) {
  .ingredients-banner { min-height: 400px; }
  .ingredients-banner-overlay { padding: 3rem 1.25rem; }
  .ingredients-banner-title { font-size: 1.9rem; }
  .ingredients-banner-desc { font-size: 0.88rem; }
}