/* ═══════════════════════════════════════════════
   SHUI THREAD — NEW FOLKLORE DESIGN SYSTEM
   水·丝线 — 当代民俗美学
═══════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=Noto+Serif+SC:wght@300;400;600;700&family=Inconsolata:wght@300;400;500&display=swap');

/* ─── TOKENS ─── */
:root {
  --orange:       #D94E1F;
  --orange-vivid: #E85D2F;
  --orange-pale:  #FBE8DF;
  --teal:         #0A6464;
  --teal-mid:     #0E8080;
  --teal-pale:    #D4ECEC;
  --cream:        #F7F3ED;
  --parchment:    #EDE7DC;
  --ink:          #0D0D0D;
  --ink-soft:     #2A2A2A;
  --ink-muted:    #6B6558;
  --white:        #FAFAF7;
  --border:       rgba(13,13,13,0.12);

  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body:    'Noto Serif SC', 'Songti SC', Georgia, serif;
  --font-mono:    'Inconsolata', 'Courier New', monospace;

  --gap:    clamp(1.5rem, 4vw, 3rem);
  --wide:   min(90rem, 96vw);
  --mid:    min(72rem, 92vw);
  --narrow: min(52rem, 90vw);

  --ease-out-expo: cubic-bezier(0.19, 1, 0.22, 1);
  --ease-spring:   cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ─── RESET ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  background: var(--cream);
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
  cursor: default;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }

/* ─── SCROLLBAR ─── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--cream); }
::-webkit-scrollbar-thumb { background: var(--orange); border-radius: 2px; }

/* ─── CUSTOM CURSOR ─── */
.cursor-dot {
  width: 8px; height: 8px;
  background: var(--orange);
  border-radius: 50%;
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 9999;
  transition: transform 0.1s var(--ease-out-expo), opacity 0.3s;
  transform: translate(-50%, -50%);
}
.cursor-ring {
  width: 32px; height: 32px;
  border: 1.5px solid var(--orange);
  border-radius: 50%;
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 9998;
  transition: transform 0.25s var(--ease-out-expo), opacity 0.3s, width 0.3s, height 0.3s;
  transform: translate(-50%, -50%);
  opacity: 0.6;
}
body:hover .cursor-dot { opacity: 1; }

/* ─── TYPOGRAPHY ─── */
.t-display {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 7rem);
  line-height: 1.0;
  letter-spacing: -0.02em;
}
.t-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3.2rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
}
.t-heading {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.5vw, 2rem);
  line-height: 1.2;
}
.t-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 400;
}
.t-body { font-size: clamp(0.9rem, 1.2vw, 1.05rem); line-height: 1.8; }
.t-zh { font-weight: 400; }
.t-italic { font-style: italic; }

/* ─── NAV ─── */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 1.2rem var(--gap);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--cream);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s, box-shadow 0.3s;
}
.site-nav.scrolled {
  background: rgba(247,243,237,0.96);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--border);
}
.nav-logo {
  display: flex;
  flex-direction: column;
  gap: 0;
  line-height: 1;
}
.nav-logo-en {
  font-family: var(--font-display);
  font-size: 1.4rem;
  letter-spacing: -0.01em;
}
.nav-logo-zh {
  font-family: var(--font-body);
  font-size: 0.65rem;
  letter-spacing: 0.3em;
  color: var(--ink-muted);
  margin-top: 1px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  list-style: none;
}
.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
  position: relative;
  transition: color 0.2s;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0; right: 0;
  height: 1px;
  background: var(--orange);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease-out-expo);
}
.nav-links a:hover { color: var(--orange); }
.nav-links a:hover::after { transform: scaleX(1); }
.nav-links a.active { color: var(--orange); }
.nav-links a.active::after { transform: scaleX(1); }

/* Commerce currently off — see COMMERCE_ENABLED in shop/index/product.html.
   To restore the cart UI, delete this block. */
.nav-cart-btn,
.cart-overlay,
.cart-panel { display: none !important; }

.nav-cart-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--ink);
  color: var(--cream);
  padding: 0.55rem 1.1rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: 2px;
  transition: background 0.2s, transform 0.2s var(--ease-spring);
  text-decoration: none;
}
.nav-cart-btn:hover { background: var(--orange); transform: translateY(-1px); }
.cart-count {
  background: var(--orange);
  color: white;
  width: 18px; height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  font-weight: 600;
  transition: transform 0.3s var(--ease-spring);
}
.cart-count.bump { transform: scale(1.4); }

/* ─── MOBILE NAV ─── */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.nav-hamburger span {
  display: block;
  width: 22px; height: 1.5px;
  background: var(--ink);
  transition: transform 0.3s, opacity 0.3s;
}

/* ─── HERO ─── */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  padding-top: 5rem;
  overflow: hidden;
}
.hero-text {
  background: var(--cream);
  padding: clamp(3rem, 8vw, 7rem) var(--gap) clamp(3rem, 8vw, 7rem) clamp(2rem, 6vw, 6rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  z-index: 2;
}
.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
}
.hero-eyebrow::before {
  content: '';
  display: block;
  width: 2rem;
  height: 1px;
  background: var(--orange);
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 7vw, 6.5rem);
  line-height: 0.95;
  letter-spacing: -0.02em;
  margin-bottom: 0.3rem;
}
.hero-title-zh {
  font-family: var(--font-body);
  font-size: clamp(1.2rem, 2.5vw, 2rem);
  letter-spacing: 0.15em;
  color: var(--ink-muted);
  margin-bottom: 2rem;
  font-weight: 300;
}
.hero-desc {
  font-size: clamp(0.9rem, 1.1vw, 1rem);
  line-height: 1.85;
  color: var(--ink-soft);
  max-width: 34ch;
  margin-bottom: 3rem;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.btn-primary {
  background: var(--orange);
  color: white;
  padding: 0.85rem 2rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: 2px;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  transition: background 0.2s, transform 0.25s var(--ease-spring), box-shadow 0.2s;
}
.btn-primary:hover {
  background: var(--ink);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(13,13,13,0.15);
}
.btn-ghost {
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--border);
  transition: color 0.2s, border-color 0.2s;
}
.btn-ghost:hover { color: var(--orange); border-color: var(--orange); }

.hero-image {
  background: #0a0808;
  position: relative;
  overflow: hidden;
}
.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 1;
  transition: transform 8s ease;
}
.hero-image:hover img { transform: scale(1.03); }
.hero-image-overlay {
  display: none;
}
.hero-image-label {
  position: absolute;
  bottom: 2rem;
  right: 2rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
  writing-mode: vertical-rl;
  text-orientation: mixed;
}
.hero-number {
  position: absolute;
  top: 2rem; left: 2rem;
  font-family: var(--font-display);
  font-size: 8rem;
  color: rgba(255,255,255,0.08);
  line-height: 1;
  pointer-events: none;
  font-style: italic;
}

/* ─── MARQUEE ─── */
.marquee-section {
  background: var(--orange);
  color: white;
  padding: 0.9rem 0;
  overflow: hidden;
  border-top: 1px solid rgba(255,255,255,0.1);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.marquee-track {
  display: flex;
  gap: 0;
  animation: marquee 28s linear infinite;
  white-space: nowrap;
}
.marquee-item {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 0 3rem;
  opacity: 0.9;
}
.marquee-dot {
  color: rgba(255,255,255,0.5);
}
/* Shui Horse Racing — the image keeps its natural aspect on the
   left; its right edge is feathered to transparent via mask-image,
   and the section background is a vertical gradient sampled from
   the image's right edge (cool cream → warm tan) so the painted
   landscape dissolves into the parchment with no visible seam. */
.horse-story {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  align-items: stretch;
  min-height: clamp(380px, 46vw, 640px);
  background: linear-gradient(
    180deg,
    #ecdcca 0%,
    #faefdb 18%,
    #f4e7d6 38%,
    #efdbbd 58%,
    #f7eacc 80%,
    #ebcd98 100%
  );
  color: var(--ink);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.horse-story__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: left center;
  -webkit-mask-image: linear-gradient(to right, #000 0%, #000 75%, transparent 100%);
          mask-image: linear-gradient(to right, #000 0%, #000 75%, transparent 100%);
}
.horse-story__text-col {
  position: relative;
  z-index: 1;
  padding: clamp(3rem, 7vw, 7rem) clamp(3rem, 7vw, 7rem) clamp(3rem, 7vw, 7rem) clamp(2rem, 4vw, 4rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.horse-story__overline {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
}
.horse-story__overline::before { content: '——'; opacity: 0.5; }
.horse-story__heading {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  line-height: 1.0;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 0 0 0.5rem;
}
.horse-story__heading em { color: var(--orange); font-style: italic; }
.horse-story__heading-zh {
  font-family: var(--font-body);
  font-size: 0.9rem;
  letter-spacing: 0.3em;
  color: var(--ink-muted);
  margin-bottom: 2rem;
}
.horse-story__body {
  font-size: 1rem;
  line-height: 1.85;
  color: var(--ink-soft);
  max-width: 42ch;
  margin: 0;
}
@media (max-width: 880px) {
  /* Mobile: image up top at natural aspect (width:100%), bottom edge
     feathers down into the parchment gradient; text below. */
  .horse-story {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto;
    min-height: 0;
  }
  .horse-story__img {
    width: 100%;
    height: auto;
    max-width: none;
    -webkit-mask-image: linear-gradient(to bottom, #000 0%, #000 80%, transparent 100%);
            mask-image: linear-gradient(to bottom, #000 0%, #000 80%, transparent 100%);
  }
  .horse-story__text-col { padding: 1.5rem 1.5rem 3rem; }
}

@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ─── SECTION STRUCTURE ─── */
.section {
  padding: clamp(4rem, 8vw, 8rem) var(--gap);
}
.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
  border-bottom: 1px solid var(--border);
  padding-bottom: 1.5rem;
  gap: 1rem;
}
.section-num {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-style: italic;
  color: var(--orange);
  margin-bottom: 0.4rem;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3rem);
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.section-title-zh {
  font-family: var(--font-body);
  font-size: 0.85rem;
  letter-spacing: 0.3em;
  color: var(--ink-muted);
  margin-top: 0.3rem;
}

/* ─── PRODUCT GRID ─── */
.shop-section { background: var(--white); }
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}
.product-card {
  background: var(--cream);
  position: relative;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.4s var(--ease-out-expo);
}
.product-card:nth-child(3n+1) { background: var(--cream); }
.product-card:nth-child(3n+2) { background: var(--parchment); }
.product-card:nth-child(3n+3) { background: var(--teal-pale); }
.product-card:hover { z-index: 10; transform: scale(1.02); }

.product-image-wrap {
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--teal);
  position: relative;
}
.product-image-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 55%, rgba(8,6,10,0.35) 100%);
  pointer-events: none;
}
.product-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease-out-expo), filter 0.4s;
  filter: saturate(0.9);
}
.product-card:hover .product-image-wrap img {
  transform: scale(1.06);
  filter: saturate(1);
}
.product-image-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.product-info {
  padding: 1.3rem 1.5rem 1.5rem;
}
.product-category {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 0.4rem;
}
.product-name {
  font-family: var(--font-display);
  font-size: 1.2rem;
  line-height: 1.2;
  margin-bottom: 0.2rem;
}
.product-name-zh {
  font-size: 0.78rem;
  color: var(--ink-muted);
  letter-spacing: 0.15em;
  margin-bottom: 0.8rem;
}
.product-price-row {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
}
.product-price {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--ink);
}
.product-price-usd {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-muted);
}
/* Collection-piece tag: shown when commerce is disabled.
   Overrides .product-price (which is styled like a price). */
.product-collection-tag {
  font-family: var(--font-mono) !important;
  font-size: 0.7rem !important;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--orange) !important;
}
.product-detail-price.product-collection-tag {
  font-size: 0.78rem !important;
  letter-spacing: 0.4em;
  margin-top: 0.4rem;
}
.product-hover-actions {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: var(--ink);
  color: white;
  display: flex;
  transform: translateY(100%);
  transition: transform 0.35s var(--ease-out-expo);
}
.product-card:hover .product-hover-actions { transform: translateY(0); }
.product-hover-btn {
  flex: 1;
  padding: 1rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: white;
  text-align: center;
  transition: background 0.2s;
  border-right: 1px solid rgba(255,255,255,0.1);
}
.product-hover-btn:last-child { border-right: none; }
.product-hover-btn:hover { background: var(--orange); cursor: pointer; }

/* ─── STORY SECTION ─── */
.story-section {
  background: var(--ink);
  color: var(--cream);
  padding: 0;
  overflow: hidden;
}
.story-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 80vh;
}
.story-image-col {
  position: relative;
  overflow: hidden;
}
.story-image-col img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
}
.story-image-col::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, transparent 60%, var(--ink) 100%);
}
.story-text-col {
  padding: clamp(4rem, 8vw, 8rem) clamp(3rem, 6vw, 6rem) clamp(4rem, 8vw, 8rem) clamp(2rem, 4vw, 4rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.story-overline {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--teal-mid);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
}
.story-overline::before { content: '——'; opacity: 0.5; }
.story-heading {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  line-height: 1.0;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}
.story-heading em { color: var(--orange); font-style: italic; }
.story-heading-zh {
  font-family: var(--font-body);
  font-size: 0.9rem;
  letter-spacing: 0.3em;
  color: rgba(247,243,237,0.4);
  margin-bottom: 2.5rem;
}
.story-body {
  font-size: 0.95rem;
  line-height: 1.9;
  color: rgba(247,243,237,0.75);
  max-width: 42ch;
  margin-bottom: 3rem;
}
.story-facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 3rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(247,243,237,0.1);
}
.fact-num {
  font-family: var(--font-display);
  font-size: 2.5rem;
  color: var(--orange);
  line-height: 1;
  font-style: italic;
}
.fact-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(247,243,237,0.5);
  margin-top: 0.3rem;
}

/* ─── COLOR BLOCK FEATURE ─── */
.feature-block {
  background: var(--orange);
  color: white;
  padding: clamp(4rem, 8vw, 8rem) var(--gap);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap);
  align-items: center;
}
.feature-block-text .t-display {
  font-size: clamp(3rem, 7vw, 6rem);
  line-height: 0.9;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}
.feature-block-text .t-display em {
  font-style: italic;
  opacity: 0.6;
}
.feature-block-body {
  font-size: 1rem;
  line-height: 1.8;
  opacity: 0.85;
  max-width: 38ch;
  margin-bottom: 2rem;
}
.btn-white {
  background: white;
  color: var(--orange);
  padding: 0.85rem 2rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: 2px;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  transition: background 0.2s, color 0.2s, transform 0.25s var(--ease-spring);
}
.btn-white:hover { background: var(--ink); color: white; transform: translateY(-2px); }
.feature-block-visual {
  position: relative;
  overflow: hidden;
  aspect-ratio: 1;
  border-radius: 2px;
}
.feature-block-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background: none;
  pointer-events: none;
}
.teal-block .feature-block-visual::after {
  /* Teal block: image is on the left, fade its right edge into teal */
  background: linear-gradient(to left, #0A6464 0%, rgba(10,100,100,0.55) 28%, transparent 62%);
}

/* ─── TEAL BLOCK ─── */
.teal-block {
  background: var(--teal);
  color: white;
}
.teal-block .feature-block-text .t-display em { color: var(--orange-pale); }

/* ─── CART PANEL ─── */
.cart-overlay {
  position: fixed;
  inset: 0;
  background: rgba(13,13,13,0.5);
  z-index: 2000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s;
}
.cart-overlay.open { opacity: 1; pointer-events: all; }
.cart-panel {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: min(480px, 95vw);
  background: var(--cream);
  z-index: 2001;
  transform: translateX(100%);
  transition: transform 0.45s var(--ease-out-expo);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.cart-panel.open { transform: translateX(0); }

.cart-panel-header {
  padding: 1.8rem 2rem 1.2rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}
.cart-panel-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  letter-spacing: -0.01em;
}
.cart-panel-title span {
  font-family: var(--font-body);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--ink-muted);
  margin-left: 0.5rem;
}
.cart-close {
  width: 36px; height: 36px;
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--ink-soft);
  transition: background 0.2s, color 0.2s;
}
.cart-close:hover { background: var(--ink); color: white; }

.cart-items {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem 2rem;
}
.cart-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  gap: 1rem;
  color: var(--ink-muted);
  text-align: center;
}
.cart-empty-icon {
  font-size: 3rem;
  opacity: 0.3;
}
.cart-empty-text {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-style: italic;
}
.cart-empty-sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.cart-item {
  display: grid;
  grid-template-columns: 80px 1fr auto;
  gap: 1rem;
  align-items: start;
  padding: 1.2rem 0;
  border-bottom: 1px solid var(--border);
  animation: slideIn 0.3s var(--ease-out-expo);
}
@keyframes slideIn {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}
.cart-item-img {
  aspect-ratio: 3/4;
  overflow: hidden;
  background: var(--teal);
  border-radius: 2px;
}
.cart-item-img img { width: 100%; height: 100%; object-fit: cover; }
.cart-item-name {
  font-family: var(--font-display);
  font-size: 0.95rem;
  line-height: 1.2;
  margin-bottom: 0.2rem;
}
.cart-item-name-zh {
  font-size: 0.72rem;
  color: var(--ink-muted);
  letter-spacing: 0.1em;
  margin-bottom: 0.6rem;
}
.cart-item-qty {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.qty-btn {
  width: 24px; height: 24px;
  border: 1px solid var(--border);
  border-radius: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: var(--ink-soft);
  transition: background 0.2s, color 0.2s;
}
.qty-btn:hover { background: var(--ink); color: white; border-color: var(--ink); }
.qty-num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  min-width: 1.5rem;
  text-align: center;
}
.cart-item-price {
  font-family: var(--font-display);
  font-size: 1rem;
  white-space: nowrap;
}
.cart-item-remove {
  display: block;
  margin-top: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-muted);
  text-decoration: underline;
  transition: color 0.2s;
}
.cart-item-remove:hover { color: var(--orange); }

.cart-panel-footer {
  padding: 1.5rem 2rem;
  border-top: 1px solid var(--border);
  background: var(--parchment);
  flex-shrink: 0;
}
.cart-subtotal {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.6rem;
}
.cart-subtotal-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-muted);
}
.cart-subtotal-amount {
  font-family: var(--font-display);
  font-size: 1.6rem;
  letter-spacing: -0.01em;
}
.cart-shipping-note {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--ink-muted);
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
}
.btn-checkout {
  width: 100%;
  background: var(--ink);
  color: white;
  padding: 1rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border-radius: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  transition: background 0.2s, transform 0.25s var(--ease-spring);
}
.btn-checkout:hover { background: var(--orange); transform: translateY(-2px); }

/* ─── CHECKOUT PAGE ─── */
.checkout-page {
  min-height: 100vh;
  padding-top: 6rem;
  background: var(--white);
}
.checkout-grid {
  max-width: var(--mid);
  margin: 0 auto;
  padding: 3rem var(--gap);
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 4rem;
  align-items: start;
}
.checkout-form-section h2 {
  font-family: var(--font-display);
  font-size: 2.2rem;
  letter-spacing: -0.02em;
  margin-bottom: 0.4rem;
}
.checkout-form-section .subtitle {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 2.5rem;
}
.form-group {
  margin-bottom: 1.5rem;
}
.form-group label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 0.5rem;
}
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1px solid var(--border);
  background: var(--cream);
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--ink);
  border-radius: 2px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  -webkit-appearance: none;
}
.form-group input:focus, .form-group select:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(10,100,100,0.08);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.form-section-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  letter-spacing: -0.01em;
  margin: 2.5rem 0 1.2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}
.payment-methods {
  display: flex;
  gap: 0.8rem;
  margin-bottom: 1.5rem;
}
.payment-method-btn {
  flex: 1;
  padding: 0.75rem;
  border: 1.5px solid var(--border);
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-muted);
  text-align: center;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.payment-method-btn.active {
  border-color: var(--teal);
  color: var(--teal);
  background: var(--teal-pale);
}
.payment-method-btn:hover { border-color: var(--teal); color: var(--teal); }

.checkout-summary {
  background: var(--cream);
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 2rem;
  position: sticky;
  top: 7rem;
}
.checkout-summary h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}
.summary-item {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
  align-items: center;
}
.summary-item-img {
  width: 56px;
  aspect-ratio: 3/4;
  overflow: hidden;
  background: var(--teal);
  border-radius: 2px;
  flex-shrink: 0;
}
.summary-item-img img { width: 100%; height: 100%; object-fit: cover; }
.summary-item-info { flex: 1; }
.summary-item-name {
  font-family: var(--font-display);
  font-size: 0.9rem;
}
.summary-item-qty {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--ink-muted);
  letter-spacing: 0.08em;
}
.summary-item-price {
  font-family: var(--font-display);
  font-size: 0.95rem;
  white-space: nowrap;
}
.summary-totals {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}
.summary-line {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.7rem;
  font-size: 0.88rem;
}
.summary-line.total {
  font-family: var(--font-display);
  font-size: 1.4rem;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}
.summary-line-label { color: var(--ink-muted); }

/* ─── SUCCESS PAGE ─── */
.success-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6rem var(--gap);
  background: var(--teal);
  color: white;
  text-align: center;
}
.success-inner { max-width: 560px; }
.success-icon {
  width: 80px; height: 80px;
  border: 2px solid rgba(255,255,255,0.4);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto 2rem;
}
.success-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4rem);
  line-height: 1.0;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}
.success-subtitle {
  font-family: var(--font-body);
  font-size: 0.85rem;
  letter-spacing: 0.3em;
  opacity: 0.6;
  margin-bottom: 2rem;
}
.success-body {
  font-size: 0.95rem;
  line-height: 1.8;
  opacity: 0.8;
  margin-bottom: 3rem;
}
.success-order-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  background: rgba(255,255,255,0.1);
  padding: 0.6rem 1.2rem;
  border-radius: 2px;
  margin-bottom: 3rem;
  display: inline-block;
}

/* ─── ABOUT PAGE ─── */
.about-hero {
  background: var(--teal);
  color: white;
  padding: clamp(6rem, 12vw, 12rem) var(--gap) clamp(4rem, 8vw, 8rem);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.about-hero::before {
  content: '水';
  position: absolute;
  font-family: var(--font-body);
  font-size: 40vw;
  color: rgba(255,255,255,0.03);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  line-height: 1;
}
.about-content {
  max-width: var(--narrow);
  margin: 0 auto;
  padding: clamp(4rem, 8vw, 8rem) var(--gap);
}
.about-content p {
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--ink-soft);
  margin-bottom: 1.8rem;
}
.about-content p:first-of-type::first-letter {
  font-family: var(--font-display);
  font-size: 4.5rem;
  float: left;
  line-height: 0.8;
  margin-right: 0.12em;
  margin-top: 0.15em;
  color: var(--orange);
}

/* ─── PRODUCT DETAIL PAGE ─── */
.product-detail {
  padding-top: 5rem;
  background: var(--white);
}
.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: calc(100vh - 5rem);
}
.product-detail-image {
  background: var(--teal-pale);
  position: relative;
  overflow: hidden;
}
.product-detail-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.product-detail-info {
  padding: clamp(3rem, 6vw, 6rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.product-detail-back {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-muted);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 2.5rem;
  transition: color 0.2s;
}
.product-detail-back:hover { color: var(--orange); }
.product-detail-category {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 0.5rem;
}
.product-detail-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1.0;
  letter-spacing: -0.02em;
  margin-bottom: 0.3rem;
}
.product-detail-title-zh {
  font-family: var(--font-body);
  font-size: 0.9rem;
  letter-spacing: 0.25em;
  color: var(--ink-muted);
  margin-bottom: 1.8rem;
}
.product-detail-price {
  font-family: var(--font-display);
  font-size: 2.5rem;
  color: var(--ink);
  letter-spacing: -0.02em;
  margin-bottom: 0.3rem;
}
.product-detail-price-usd {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-muted);
  margin-bottom: 2rem;
}
.product-detail-desc {
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--ink-soft);
  max-width: 44ch;
  margin-bottom: 2.5rem;
}
.product-detail-add {
  width: 100%;
  max-width: 340px;
  background: var(--ink);
  color: white;
  padding: 1.1rem 2rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border-radius: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  transition: background 0.2s, transform 0.25s var(--ease-spring);
  margin-bottom: 1rem;
}
.product-detail-add:hover { background: var(--orange); transform: translateY(-2px); }

/* ─── FOOTER ─── */
.site-footer {
  background: var(--ink);
  color: rgba(247,243,237,0.7);
  padding: clamp(3rem, 6vw, 6rem) var(--gap) 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 4rem;
  margin-bottom: 4rem;
  max-width: var(--wide);
  margin-left: auto;
  margin-right: auto;
}
.footer-brand .nav-logo-en {
  font-size: 1.8rem;
  color: var(--cream);
}
.footer-brand .nav-logo-zh { color: rgba(247,243,237,0.4); }
.footer-tagline {
  font-size: 0.88rem;
  line-height: 1.7;
  margin-top: 1rem;
  max-width: 28ch;
}
.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 1.2rem;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 0.6rem; }
.footer-col a {
  font-size: 0.85rem;
  color: rgba(247,243,237,0.6);
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--cream); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(247,243,237,0.08);
  max-width: var(--wide);
  margin: 0 auto;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  opacity: 0.4;
}

/* ─── TOAST NOTIFICATION ─── */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(200%);
  background: var(--ink);
  color: white;
  padding: 0.9rem 2rem;
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  z-index: 3000;
  transition: transform 0.45s var(--ease-spring);
  white-space: nowrap;
  box-shadow: 0 8px 32px rgba(13,13,13,0.3);
  border-left: 3px solid var(--orange);
}
.toast.show { transform: translateX(-50%) translateY(0); }

/* ─── PAGE TRANSITIONS ─── */
.page-fade-in {
  animation: pageFadeIn 0.6s var(--ease-out-expo) both;
}
@keyframes pageFadeIn {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ─── SVG MOTIF ─── */
.folk-motif {
  display: inline-block;
}
.folk-motif-pattern {
  fill: none;
  stroke: currentColor;
}

/* ─── ANIMATIONS ─── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s var(--ease-out-expo), transform 0.7s var(--ease-out-expo);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ─── LOADING SCREEN ─── */
.loading-screen {
  position: fixed;
  inset: 0;
  background: var(--ink);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 2rem;
  transition: opacity 0.6s, transform 0.6s var(--ease-out-expo);
}
.loading-screen.done {
  opacity: 0;
  pointer-events: none;
  transform: translateY(-100%);
}
.loading-logo {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 6rem);
  color: white;
  letter-spacing: -0.02em;
  line-height: 1;
  animation: breathe 1.5s ease-in-out infinite;
}
.loading-logo em { color: var(--orange); font-style: italic; }
.loading-logo-zh {
  font-family: var(--font-body);
  font-size: 0.85rem;
  letter-spacing: 0.4em;
  color: rgba(255,255,255,0.4);
  text-align: center;
}
.loading-bar {
  width: 200px;
  height: 1px;
  background: rgba(255,255,255,0.1);
  position: relative;
  overflow: hidden;
}
.loading-bar::after {
  content: '';
  position: absolute;
  left: -100%;
  top: 0; bottom: 0;
  width: 100%;
  background: var(--orange);
  animation: loadBar 1.2s var(--ease-out-expo) forwards;
}
@keyframes loadBar {
  0% { left: -100%; }
  100% { left: 100%; }
}
@keyframes breathe {
  0%, 100% { opacity: 0.7; }
  50% { opacity: 1; }
}

/* ─── PRODUCT PLACEHOLDER SVG COLORS ─── */
.placeholder-1 { background: #0A6464; }
.placeholder-2 { background: #1B2B4B; }
.placeholder-3 { background: #5C2D0A; }
.placeholder-4 { background: #0A3D2A; }
.placeholder-5 { background: #3D1A5C; }
.placeholder-6 { background: #5C3A0A; }

/* ─── RESPONSIVE ─── */
@media (max-width: 1024px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .checkout-grid { grid-template-columns: 1fr; }
  .checkout-summary { position: static; }
}
@media (max-width: 768px) {
  .hero { grid-template-columns: 1fr; }
  .hero-image { height: 55vw; }
  .story-inner { grid-template-columns: 1fr; }
  .story-image-col { height: 60vw; }
  .story-image-col::after { background: linear-gradient(to bottom, transparent 60%, var(--ink) 100%); }
  .feature-block { grid-template-columns: 1fr; }
  .feature-block-visual { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .product-detail-grid { grid-template-columns: 1fr; }
  .product-detail-image { height: 70vw; }
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .product-grid { grid-template-columns: 1fr; }
}

/* ─── PROCESS / MADE BY HAND SECTION ─── */
.process-section {
  background: var(--cream);
  color: var(--ink);
}

/* Hero */
.process-hero {
  position: relative;
  height: clamp(320px, 55vw, 620px);
  overflow: hidden;
}
.process-hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
}
.process-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(8,6,10,0.72) 0%, rgba(8,6,10,0.30) 55%, transparent 100%);
}
.process-hero-text {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: clamp(2rem,5vw,5rem);
  color: white;
}
.process-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.25em;
  color: rgba(247,243,237,0.55);
  margin-bottom: 0.75rem;
}
.process-title {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 9vw, 8rem);
  line-height: 0.9;
  letter-spacing: -0.03em;
  color: white;
  margin: 0;
}
.process-title em {
  font-style: italic;
  color: var(--orange);
}

/* Intro */
.process-intro {
  max-width: var(--wide);
  margin: 0 auto;
  padding: clamp(3rem,6vw,5rem) var(--gap);
  border-bottom: 1px solid rgba(8,6,10,0.08);
}
.process-intro p {
  font-family: var(--font-body);
  font-size: clamp(1rem,1.3vw,1.15rem);
  line-height: 1.85;
  color: var(--ink-muted);
  max-width: 72ch;
}

/* Steps grid */
.process-steps {
  max-width: var(--wide);
  margin: 0 auto;
  padding: clamp(3rem,6vw,5rem) var(--gap);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}
.process-step-header {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  margin-bottom: 1rem;
  min-height: 4.5rem;
}
.process-step-num {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  color: var(--orange);
  padding-top: 0.15rem;
  flex-shrink: 0;
}
.process-step-zh {
  font-family: var(--font-body);
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  color: var(--ink-muted);
}
.process-step-en {
  font-family: var(--font-display);
  font-size: clamp(1rem,1.4vw,1.25rem);
  letter-spacing: -0.01em;
  color: var(--ink);
  line-height: 1.1;
}
.process-step-img {
  aspect-ratio: 1;
  overflow: hidden;
  margin-bottom: 1.2rem;
  position: relative;
}
.process-step-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 60%, rgba(247,243,237,0.4) 100%);
  pointer-events: none;
}
.process-step-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease-out-expo);
}
.process-step:hover .process-step-img img {
  transform: scale(1.04);
}
.process-step-body {
  font-family: var(--font-body);
  font-size: 0.84rem;
  line-height: 1.75;
  color: var(--ink-muted);
}

/* Toggle button */
.process-toggle-wrap {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 0 var(--gap) clamp(2rem,4vw,3rem);
}
.process-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  background: #100e0c;
  border: none;
  padding: 0.9rem 1.8rem;
  cursor: pointer;
  border-radius: 2px;
  transition: background 0.2s;
}
.process-toggle-btn:hover {
  background: #1a1714;
}
.process-toggle-label {
  font-family: var(--font-body);
  font-size: 0.9rem;
  letter-spacing: 0.2em;
  color: rgba(247,243,237,0.92);
}
.process-toggle-label-en {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(247,243,237,0.45);
}
.process-toggle-arrow {
  color: var(--orange);
  transition: transform 0.35s var(--ease-out-expo);
  flex-shrink: 0;
}
.process-toggle-btn[aria-expanded="true"] .process-toggle-arrow {
  transform: rotate(180deg);
}

/* Collapsible detail */
.process-detail {
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height 0.7s var(--ease-out-expo), opacity 0.5s ease;
  background: #100e0c;
}
.process-detail.open {
  max-height: 2400px;
  opacity: 1;
}
/* Text inside expanded detail */
.process-detail .process-steps {
  color: var(--cream);
}
.process-detail .process-step-en {
  color: rgba(247,243,237,0.92);
}
.process-detail .process-step-zh {
  color: rgba(247,243,237,0.38);
}
.process-detail .process-step-body {
  color: rgba(247,243,237,0.50);
}
.process-detail .process-step-img::after {
  background: linear-gradient(to bottom, transparent 55%, rgba(16,14,12,0.45) 100%);
}
.process-detail .process-cta {
  padding-bottom: clamp(3rem,6vw,5rem);
}

/* CTA */
.process-cta {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 0 var(--gap) clamp(3rem,6vw,5rem);
}

@media (max-width: 720px) {
  .process-steps { grid-template-columns: 1fr; }
}

/* ─── INDIGO SECTION ─── */
.indigo-section {
  background: #060810;
  color: var(--cream);
  padding: clamp(5rem,10vw,9rem) var(--gap);
  overflow: hidden;
}
.indigo-inner {
  max-width: var(--wide);
  margin: 0 auto;
}
.indigo-header {
  max-width: 640px;
  margin-bottom: clamp(3rem,6vw,5rem);
}
.indigo-header .section-num {
  color: rgba(100,130,180,0.5);
}
.indigo-header .section-title {
  color: var(--cream);
}
.indigo-header .section-title-zh {
  color: rgba(100,130,180,0.6);
}
.indigo-intro {
  font-family: var(--font-body);
  font-size: clamp(0.9rem,1.2vw,1.05rem);
  line-height: 1.75;
  color: rgba(247,243,237,0.55);
  margin-top: 1.25rem;
  max-width: 540px;
}
.indigo-images {
  display: grid;
  grid-template-columns: 1fr 1.2fr 1fr;
  gap: 3px;
  margin-bottom: clamp(3rem,6vw,5rem);
  height: clamp(320px,40vw,520px);
}
.indigo-img-wrap {
  position: relative;
  overflow: hidden;
}
.indigo-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: brightness(0.85) saturate(0.9);
  transition: transform 8s ease, filter 0.6s ease;
}
.indigo-img-wrap:hover img {
  transform: scale(1.04);
  filter: brightness(0.95) saturate(1.1);
}
.indigo-img-label {
  position: absolute;
  bottom: 1.2rem;
  left: 1.2rem;
  font-family: var(--font-body);
  font-size: 0.8rem;
  letter-spacing: 0.3em;
  color: rgba(247,243,237,0.7);
}
.indigo-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  border-top: 1px solid rgba(100,130,180,0.15);
  padding-top: 2.5rem;
}
.indigo-step-num {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: rgba(100,130,180,0.5);
  margin-bottom: 1rem;
}
.indigo-step-title {
  font-family: var(--font-body);
  font-size: 1rem;
  letter-spacing: 0.2em;
  color: var(--cream);
  margin-bottom: 0.25rem;
}
.indigo-step-title-en {
  font-family: var(--font-display);
  font-size: clamp(1.1rem,1.8vw,1.5rem);
  letter-spacing: -0.01em;
  color: rgba(247,243,237,0.9);
  margin-bottom: 0.9rem;
  line-height: 1.1;
}
.indigo-step-body {
  font-family: var(--font-body);
  font-size: 0.82rem;
  line-height: 1.75;
  color: rgba(247,243,237,0.45);
}
.indigo-step-body em { color: rgba(100,160,200,0.8); font-style: normal; }
@media (max-width: 900px) {
  .indigo-images { grid-template-columns: 1fr 1fr; height: clamp(240px,50vw,380px); }
  .indigo-img-wrap:last-child { display: none; }
  .indigo-steps { grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
}
@media (max-width: 600px) {
  .indigo-images { grid-template-columns: 1fr; height: 70vw; }
  .indigo-img-wrap:first-child,
  .indigo-img-wrap:last-child { display: none; }
  .indigo-steps { grid-template-columns: 1fr; }
}

/* ─── UTILITY ─── */
.container { max-width: var(--wide); margin: 0 auto; }
.text-center { text-align: center; }
.hidden { display: none !important; }
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}