:root {
  --bg: #ffffff;
  --paper: #ffffff;
  --ink: #1a1a1f;
  --muted: #8b8b96;
  --line: #ececef;
  --soft: #f5f5f7;
  --accent: #1c1c22;
  --accent-2: #c9a227;
  --max: 1400px;
  --radius: 16px;
  --shadow: 0 8px 28px rgba(26, 26, 31, 0.08);
  --font-brand: "Instrument Serif", Georgia, serif;
  --font-ui: "Plus Jakarta Sans", sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-ui);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }
button { cursor: pointer; border: 0; background: none; }

.wrap { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
}
.header-row {
  display: flex;
  align-items: center;
  gap: 20px;
  min-height: 64px;
}
.brand {
  --kako: #ff313f;
  --goods: #2f6bff;
  --qc: #1f9d55;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.brand-mark {
  width: 28px;
  height: 36px;
  object-fit: contain;
  flex: 0 0 auto;
  display: block;
}
.brand-text {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
  line-height: 1.1;
}
.brand-title {
  font-family: var(--font-ui);
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: -0.03em;
  white-space: nowrap;
}
.brand-title .c-kako { color: var(--kako); }
.brand-title .c-sheet { color: var(--ink); }
.brand-url {
  padding-top: 3px;
  border-top: 1px solid var(--kako);
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: 0.68rem;
  letter-spacing: -0.01em;
  white-space: nowrap;
  color: var(--ink);
}
.brand-url .c-ink,
.brand-url .c-kako,
.brand-url .c-goods,
.brand-url .c-qc { color: inherit; }
.header-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--ink);
  padding: 8px 10px;
  border-radius: 8px;
}
.nav-link:hover { background: var(--soft); }
.cat-menu {
  position: relative;
}
.cat-menu-panel {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 180px;
  max-height: 70vh;
  overflow: auto;
  padding: 8px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  display: grid;
  gap: 2px;
  z-index: 50;
}
.cat-menu-panel[hidden] { display: none; }
.cat-menu-panel a {
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 0.9rem;
  color: var(--ink);
}
.cat-menu-panel a:hover { background: var(--soft); }
.cat-icon { cursor: pointer; }
.header-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
}
.btn-install {
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid #d8a824;
  border-radius: 8px;
  color: var(--ink);
  white-space: nowrap;
  font-size: 0.84rem;
}
.btn-install:hover { background: #fff9e8; }
.kakobuy-login {
  min-height: 38px;
  padding: 0 14px;
  border-radius: 8px;
  background: #111;
  color: #fff;
  white-space: nowrap;
  font-size: 0.84rem;
}
.kakobuy-login:hover { background: #2a2a2a; color: #fff; }
.btn-install[hidden] { display: none; }
.install-guide {
  width: min(420px, calc(100% - 32px));
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 16px;
  color: var(--ink);
  box-shadow: var(--shadow);
}
.install-guide::backdrop { background: rgba(20, 20, 26, 0.38); }
.install-guide-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.install-guide-head strong { font-size: 1rem; }
.install-guide-head button { font-size: 1.4rem; color: var(--muted); }
.install-guide-copy { margin: 12px 0 0; color: var(--muted); font-size: 0.92rem; }
.wish-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 4px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--ink);
}
.wish-chip svg { width: 18px; height: 18px; }
.wish-chip b { font-weight: 600; color: var(--muted); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  padding: 0 18px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.92rem;
  transition: transform 0.15s ease, opacity 0.15s ease;
}
.btn:active { transform: scale(0.98); }
.btn-solid {
  background: var(--accent);
  color: #fff;
}
.btn-solid:hover { opacity: 0.9; }
.btn-ghost {
  background: transparent;
  color: var(--muted);
}
.btn-ghost:hover { color: var(--ink); }
.btn.btn-ghost.kakobuy-login {
  background: #111;
  color: #fff;
  border: 1px solid #111;
}
.btn.btn-ghost.kakobuy-login:hover {
  background: #2a2a2a;
  color: #fff;
  border-color: #2a2a2a;
}
.view-all {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--muted);
}
.view-all:hover { color: var(--ink); }
.view-all .arrow {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1px solid var(--line);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
}

/* —— Home hero (GoodsQC-like composition) —— */
.hero {
  padding: 72px 0 28px;
  text-align: center;
}
.hero-brand {
  margin: 0 0 18px;
  animation: fade-up 0.65s ease both;
}
.hero-brand-title {
  margin: 0;
  font-family: var(--font-brand);
  font-size: clamp(3.4rem, 9vw, 5.2rem);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 0.95;
  color: var(--ink);
}
.hero-brand-tag {
  margin: 10px 0 0;
  font-family: var(--font-ui);
  font-size: clamp(0.78rem, 1.8vw, 0.95rem);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: lowercase;
  color: var(--muted);
}
.hero-sub {
  margin: 0 auto 28px;
  max-width: 34ch;
  font-size: 1rem;
  font-weight: 400;
  color: var(--muted);
  animation: fade-up 0.7s ease 0.05s both;
}
.search-shell {
  width: min(640px, 100%);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 8px 8px 20px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  animation: fade-up 0.75s ease 0.1s both;
}
.search-shell input {
  flex: 1;
  border: 0;
  outline: none;
  background: transparent;
  min-width: 0;
  padding: 10px 0;
  font-size: 0.95rem;
  color: var(--ink);
}
.search-shell input::placeholder { color: #b0b0b8; }
.search-btn {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 22px;
  border-radius: 999px;
  background: #111;
  color: #fff;
  font-weight: 600;
  font-size: 0.92rem;
}
.search-btn svg { width: 16px; height: 16px; }
.search-btn:hover { opacity: 0.92; }

@keyframes fade-up {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}

.cat-icons {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px 28px;
  padding: 44px 0 12px;
  animation: fade-up 0.8s ease 0.14s both;
}
.cat-icon {
  width: 112px;
  display: grid;
  justify-items: center;
  gap: 12px;
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.15s ease, transform 0.2s ease;
}
.cat-icon:hover {
  color: var(--ink);
  transform: translateY(-2px);
}
.cat-icon .orb {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: var(--soft);
  overflow: hidden;
  display: grid;
  place-items: center;
}
.cat-icon .orb img {
  width: 82%;
  height: 82%;
  object-fit: contain;
  mix-blend-mode: multiply;
}

.section { padding: 36px 0 28px; }
.section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}
.section-head h2 {
  margin: 0 0 6px;
  font-family: var(--font-ui);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}
.section-head p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.rail {
  position: relative;
}
.rail-track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: calc((100% - 70px) / 6);
  gap: 14px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  padding: 4px 2px 12px;
  scrollbar-width: none;
}
.rail-track::-webkit-scrollbar { display: none; }
.rail-track .product-card {
  scroll-snap-align: start;
  min-width: 0;
}
.rail-btn {
  position: absolute;
  top: 38%;
  z-index: 2;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #111;
  color: #fff;
  font-size: 1.35rem;
  line-height: 1;
  display: grid;
  place-items: center;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
  opacity: 0.92;
  transition: opacity 0.15s ease, transform 0.15s ease;
}
.rail-btn:hover { opacity: 1; transform: scale(1.04); }
.rail-prev { left: -8px; }
.rail-next { right: -8px; }
.rail-btn.is-hidden { visibility: hidden; pointer-events: none; }

.product-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 18px 14px;
}
.product-card {
  display: grid;
  gap: 10px;
  transition: transform 0.2s ease;
}
.product-card:hover { transform: translateY(-3px); }
.product-card.is-rail .product-meta h3 {
  -webkit-line-clamp: 1;
  font-size: 0.86rem;
}
.product-card.is-rail .sub { display: none; }
.thumb {
  position: relative;
  aspect-ratio: 1;
  border-radius: 14px;
  overflow: hidden;
  background: var(--soft);
}
.thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.badge-row {
  position: absolute;
  left: 8px;
  top: 8px;
  display: flex;
  gap: 6px;
}
.badge {
  font-size: 0.68rem;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--ink);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}
.product-meta { display: grid; gap: 3px; }
.product-meta h3 {
  margin: 0;
  font-size: 0.88rem;
  font-weight: 600;
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.product-meta .price {
  font-weight: 700;
  font-size: 0.95rem;
}
.product-meta .sub {
  font-size: 0.75rem;
  color: var(--muted);
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-bottom: 18px;
}
.shop-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}
.shop-chip {
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--muted);
  background: #fff;
}
.shop-chip:hover { color: var(--ink); border-color: #ccc; }
.shop-chip.is-on {
  background: #111;
  border-color: #111;
  color: #fff;
}
.toolbar input, .toolbar select {
  min-height: 42px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  outline: none;
}
.toolbar input { flex: 1; min-width: 180px; }
.pager {
  display: flex;
  gap: 8px;
  justify-content: center;
  align-items: center;
  margin-top: 28px;
}
.empty-state {
  padding: 48px 20px;
  text-align: center;
  color: var(--muted);
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  background: var(--soft);
  grid-column: 1 / -1;
}

.item-back {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin: 8px auto 14px;
  padding: 7px 12px 7px 8px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--ink);
}
body[data-page="item"] .page-top {
  max-width: 920px;
}
.item-back svg { width: 16px; height: 16px; }
.item-back:hover { background: var(--soft); }

.item-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: start;
  padding: 0 0 8px;
  max-width: 920px;
  margin: 0 auto;
}
.item-gallery { min-width: 0; }
.gallery-main {
  aspect-ratio: 1;
  border-radius: 14px;
  overflow: hidden;
  background: var(--soft);
  border: 1px solid var(--line);
}
.gallery-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.gallery-thumbs {
  display: flex;
  gap: 10px;
  margin-top: 12px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: thin;
}
.gallery-thumbs button {
  flex: 0 0 58px;
  width: 58px;
  aspect-ratio: 1;
  border-radius: 8px;
  overflow: hidden;
  border: 2px solid transparent;
  padding: 0;
  background: var(--soft);
}
.gallery-thumbs button.is-active { border-color: var(--ink); }
.gallery-thumbs img { width: 100%; height: 100%; object-fit: cover; }

.item-media-tabs {
  display: flex;
  gap: 8px;
  margin-top: 14px;
}
.media-tab {
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--muted);
  background: transparent;
  border: 1px solid transparent;
}
.media-tab:hover { color: var(--ink); background: var(--soft); }
.media-tab.is-active {
  color: var(--ink);
  background: var(--soft);
  border-color: var(--line);
}

.item-panel { min-width: 0; padding-top: 2px; }
.item-panel h1 {
  font-family: var(--font-ui);
  font-size: clamp(1.15rem, 2.2vw, 1.45rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin: 0 0 10px;
  line-height: 1.25;
  color: var(--ink);
}
.item-meta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 16px;
  margin-bottom: 16px;
  color: var(--muted);
  font-size: 0.88rem;
}
.meta-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.meta-chip svg { width: 14px; height: 14px; flex: 0 0 auto; }

.item-price-row {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 18px;
}
.item-price {
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--ink);
}
.item-price-cny {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--muted);
}

.btn-buy-now {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  background: #111;
  color: #fff;
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 8px;
  transition: opacity 0.15s ease;
}
.btn-buy-now:hover { opacity: 0.9; }
.buy-mark {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #ff313f;
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: -0.04em;
}
.item-wish { margin-left: -6px; }

.item-below {
  margin-top: 24px;
  padding-bottom: 8px;
  max-width: 920px;
  margin-left: auto;
  margin-right: auto;
}
.item-below[hidden] { display: none; }
.item-related {
  margin-top: 36px;
  padding: 28px 0 48px;
  border-top: 1px solid var(--line);
}
.item-related .section-head {
  margin-bottom: 18px;
}
.item-related .section-head h2 {
  font-size: 1.35rem;
}
.qc-photo-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
.qc-photo {
  margin: 0;
  border-radius: 12px;
  overflow: hidden;
  background: var(--soft);
  position: relative;
  aspect-ratio: 1;
}
.qc-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.qc-photo figcaption {
  position: absolute;
  left: 8px;
  bottom: 8px;
  font-size: 0.7rem;
  padding: 3px 8px;
  border-radius: 999px;
  background: rgba(26, 26, 31, 0.72);
  color: #fff;
}
.qc-empty {
  padding: 36px 24px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  background: var(--soft);
  text-align: center;
  color: var(--muted);
}
.qc-empty strong { display: block; color: var(--ink); margin-bottom: 6px; }

.reviews-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.reviews-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.review-filter {
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  font-size: 0.86rem;
  font-weight: 500;
}
.review-filter.is-active {
  background: #1a1a1f;
  border-color: #1a1a1f;
  color: #fff;
}
.btn-write-review {
  margin-left: auto;
  padding: 8px 16px;
  border-radius: 999px;
  background: #ff313f;
  color: #fff;
  font-size: 0.86rem;
  font-weight: 600;
  white-space: nowrap;
}
.btn-write-review:hover { opacity: 0.92; }

.reviews-empty {
  padding: 56px 20px 72px;
  text-align: center;
  color: var(--muted);
}
.reviews-empty-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 16px;
  display: block;
  color: #c5c5cc;
}
.reviews-empty strong {
  display: block;
  color: var(--ink);
  font-size: 1.05rem;
  margin-bottom: 6px;
}
.reviews-empty p { margin: 0; font-size: 0.92rem; }

.review-list { display: grid; gap: 14px; }
.review-card {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
}
.review-card-top {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.85rem;
}
.review-stars { color: #f5a524; letter-spacing: 1px; }
.review-score { font-weight: 700; color: var(--ink); }
.review-card p {
  margin: 0;
  color: var(--ink);
  font-size: 0.95rem;
  line-height: 1.5;
  white-space: pre-wrap;
}

.review-form-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
}
.review-form-head h2 {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 600;
}
.review-form-back {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--line);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  background: #fff;
}
.review-form-back svg { width: 16px; height: 16px; }
.review-form-back:hover { background: var(--soft); }
.review-label {
  display: block;
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 10px;
}
.review-rating-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}
.star-picker { display: flex; gap: 4px; }
.star-btn {
  width: 32px;
  height: 32px;
  padding: 0;
  color: #d0d0d6;
}
.star-btn svg {
  width: 28px;
  height: 28px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.4;
}
.star-btn.is-on { color: #f5a524; }
.star-btn.is-on svg { fill: currentColor; stroke: currentColor; }
.star-value {
  font-size: 1rem;
  font-weight: 600;
  color: var(--ink);
}
.review-compose {
  padding: 14px;
  border-radius: 14px;
  background: var(--soft);
  margin-bottom: 18px;
}
.review-compose textarea {
  width: 100%;
  border: 0;
  outline: none;
  resize: vertical;
  min-height: 140px;
  background: transparent;
  font: inherit;
  color: var(--ink);
}
.review-compose textarea::placeholder { color: #a0a0a8; }
.btn-review-submit {
  padding: 10px 24px;
  border-radius: 999px;
  background: #ff313f;
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
}
.btn-review-submit:hover { opacity: 0.92; }

@media (max-width: 560px) {
  .btn-write-review { width: 100%; margin-left: 0; text-align: center; }
  .reviews-toolbar { flex-direction: column; align-items: stretch; }
}

/* legacy helpers still used on shop empty states */
.note-box {
  padding: 14px 16px;
  border-radius: 12px;
  background: var(--soft);
  color: var(--muted);
  font-size: 0.88rem;
}
.note-box strong { color: var(--ink); }
.tabs {
  display: flex;
  gap: 4px;
  margin: 28px 0 16px;
  border-bottom: 1px solid var(--line);
}
.tab {
  padding: 12px 14px;
  color: var(--muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  font-weight: 600;
  font-size: 0.92rem;
}
.tab.is-active {
  color: var(--ink);
  border-bottom-color: var(--ink);
}
.tab-panel { display: none; padding-bottom: 48px; }
.tab-panel.is-active { display: block; }
.seed-grid, .qc-batch-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
.seed-grid figure, .qc-batch {
  margin: 0;
  border-radius: 12px;
  overflow: hidden;
  background: var(--soft);
  position: relative;
  aspect-ratio: 1;
}
.seed-grid img, .qc-batch img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.seed-grid figcaption, .qc-batch .meta {
  position: absolute;
  left: 8px;
  bottom: 8px;
  font-size: 0.7rem;
  padding: 3px 8px;
  border-radius: 999px;
  background: rgba(26, 26, 31, 0.72);
  color: #fff;
}

.site-footer {
  margin-top: 24px;
  padding: 40px 0 56px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.88rem;
}
.site-footer h3 {
  margin: 0 0 8px;
  color: var(--ink);
  font-size: 0.95rem;
  font-weight: 700;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 28px;
}
.footer-grid a:hover { color: var(--ink); }

.page-top {
  padding-top: 18px;
}

@media (max-width: 1280px) {
  .product-grid { grid-template-columns: repeat(5, 1fr); }
  .rail-track { grid-auto-columns: calc((100% - 56px) / 5); }
}
@media (max-width: 1100px) {
  .product-grid { grid-template-columns: repeat(4, 1fr); }
  .rail-track { grid-auto-columns: calc((100% - 42px) / 4); }
}
@media (max-width: 860px) {
  .product-grid { grid-template-columns: repeat(3, 1fr); }
  .rail-track { grid-auto-columns: calc((100% - 28px) / 3); }
  .item-layout { grid-template-columns: 1fr; gap: 24px; }
  .seed-grid, .qc-batch-grid, .qc-photo-grid { grid-template-columns: repeat(3, 1fr); }
  .header-nav { display: none; }
  .rail-btn { width: 34px; height: 34px; font-size: 1.15rem; }
}
@media (max-width: 560px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .rail-track { grid-auto-columns: calc((100% - 14px) / 2.2); }
  .hero { padding-top: 48px; }
  .brand-mark { width: 22px; height: 28px; }
  .brand-title { font-size: 0.78rem; }
  .brand-url { font-size: 0.58rem; }
  .header-row { flex-wrap: wrap; gap: 4px 8px; padding-block: 8px; }
  .cat-menu { order: 3; width: 100%; }
  .cat-menu-btn { padding: 4px 8px; }
  .header-actions { order: 2; gap: 2px; }
  .kakobuy-login { min-height: 34px; padding: 0 8px; font-size: 0; }
  .kakobuy-login::after { content: "Login"; font-size: 0.72rem; }
  .btn-install { min-height: 34px; padding: 0 8px; font-size: 0; }
  .btn-install::after { content: "Install"; font-size: 0.72rem; }
  .cat-icon { width: 96px; font-size: 0.88rem; }
  .cat-icon .orb { width: 76px; height: 76px; }
  .seed-grid, .qc-batch-grid, .qc-photo-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
  .search-btn span { display: none; }
  .item-price { font-size: 1.55rem; }
  .gallery-thumbs button { flex-basis: 64px; width: 64px; }
}