@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;500;600;700&display=swap');

:root {
  --bg: #f3f6f4;
  --bg-elevated: #ffffff;
  --ink: #1e2d24;
  --ink-soft: #5c6f63;
  --line: #dce5df;
  --accent: #2e7d32;
  --accent-dark: #1b5e20;
  --gold: #558b2f;
  --sale: #ef6c00;
  --banner1: #2e7d32;
  --banner2: #1b5e20;
  --wrap: min(1240px, 94vw);
  --sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--sans); background: var(--bg); color: var(--ink); line-height: 1.55; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input { font: inherit; }
.wrap { width: var(--wrap); margin: 0 auto; }

.top-bar {
  background: var(--accent-dark);
  color: #fff;
  font-size: 0.78rem;
  text-align: center;
  padding: 8px 12px;
}

.site-header {
  position: sticky; top: 0; z-index: 100;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 2px 12px rgba(0,0,0,.04);
}
.header-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 20px;
  align-items: center;
  padding: 14px 0;
}
.brand { display: flex; flex-direction: column; line-height: 1.2; }
.brand-name { font-size: 1.45rem; font-weight: 700; color: var(--accent); }
.brand-sub { font-size: 0.72rem; color: var(--ink-soft); margin-top: 2px; }
.header-search {
  display: flex;
  max-width: 520px;
  width: 100%;
  margin: 0 auto;
  border: 2px solid var(--accent);
  border-radius: 4px;
  overflow: hidden;
}
.header-search input {
  flex: 1;
  border: none;
  padding: 10px 14px;
  outline: none;
}
.header-search button {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 0 18px;
  cursor: pointer;
  font-weight: 500;
}
.header-actions { display: flex; gap: 16px; align-items: center; font-size: 0.88rem; }
.bag-link { font-weight: 500; color: var(--accent); }
.cart-badge {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 18px; height: 18px; padding: 0 5px;
  background: var(--sale); color: #fff; font-size: 0.7rem;
  border-radius: 9px; margin-left: 4px;
}
.nav-row {
  border-top: 1px solid var(--line);
  padding: 10px 0;
}
.main-nav { display: flex; gap: 28px; list-style: none; font-size: 0.9rem; }
.main-nav a { opacity: 0.8; }
.main-nav a:hover, .main-nav a.is-active { opacity: 1; color: var(--accent); font-weight: 500; }

.banner-slider {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  padding: 20px 0;
}
.banner-slide {
  border-radius: 8px;
  padding: 28px 22px;
  min-height: 140px;
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}
.banner-slide:nth-child(1) { background: linear-gradient(135deg, var(--banner1), var(--banner2)); }
.banner-slide:nth-child(2) { background: linear-gradient(135deg, var(--gold), var(--accent)); }
.banner-slide:nth-child(3) { background: linear-gradient(135deg, var(--accent-dark), var(--banner1)); }
.banner-slide h3 { font-size: 1.15rem; margin-bottom: 6px; }
.banner-slide p { font-size: 0.82rem; opacity: 0.92; }

.cat-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  padding-bottom: 24px;
}
.cat-card {
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px 10px;
  text-align: center;
  transition: border-color .2s, box-shadow .2s;
}
.cat-card:hover { border-color: var(--accent); box-shadow: 0 4px 16px rgba(0,0,0,.06); }
.cat-card span { display: block; font-weight: 600; font-size: 0.92rem; }
.cat-card small { color: var(--ink-soft); font-size: 0.72rem; margin-top: 4px; display: block; }

.promo-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 28px;
}
.promo-box {
  background: var(--bg-elevated);
  border: 1px dashed var(--accent);
  border-radius: 8px;
  padding: 20px 24px;
  font-size: 0.95rem;
  color: var(--accent-dark);
}

.shop-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  padding: 8px 0 20px;
}
.shop-head h2 { font-size: 1.35rem; font-weight: 600; }
.shop-tools { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
#toolbar-filters { display: flex; flex-wrap: wrap; gap: 8px; }
.filter-chip {
  padding: 7px 14px;
  border: 1px solid var(--line);
  background: var(--bg-elevated);
  border-radius: 4px;
  font-size: 0.82rem;
  cursor: pointer;
}
.filter-chip.is-active { background: var(--accent); border-color: var(--accent); color: #fff; }
.search-input {
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 4px;
  min-width: 180px;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px 16px;
  padding-bottom: 64px;
}
.product-card { background: var(--bg-elevated); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.card-media { position: relative; aspect-ratio: 1; overflow: hidden; background: #eee; }
.card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s var(--ease); }
.product-card:hover .card-media img { transform: scale(1.05); }
.card-tag {
  position: absolute; top: 8px; left: 8px;
  background: var(--sale); color: #fff;
  font-size: 0.68rem; padding: 3px 8px; border-radius: 2px;
}
.card-body { padding: 12px; }
.card-cat { font-size: 0.7rem; color: var(--gold); }
.card-title { font-size: 0.92rem; font-weight: 500; margin: 6px 0 8px; line-height: 1.35; min-height: 2.6em; }
.card-price { display: flex; align-items: baseline; gap: 8px; margin-bottom: 10px; }
.price-now { font-size: 1.05rem; font-weight: 600; color: var(--sale); }
.price-was { font-size: 0.8rem; color: var(--ink-soft); text-decoration: line-through; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 10px 16px; border: none; cursor: pointer; font-size: 0.85rem;
  border-radius: 4px; transition: background .2s;
}
.btn-dark { background: var(--accent); color: #fff; width: 100%; }
.btn-dark:hover { background: var(--accent-dark); }
.btn-outline { border: 1px solid var(--line); background: transparent; }
.btn-lg { padding: 12px 24px; }
.btn-block { width: 100%; }
.btn-ghost { background: transparent; border: 1px solid var(--line); color: var(--ink-soft); }

.page-pad { padding: 32px 0 64px; }
.breadcrumb { font-size: 0.85rem; color: var(--ink-soft); margin-bottom: 24px; }
.detail-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; }
.detail-gallery { border: 1px solid var(--line); border-radius: 8px; overflow: hidden; aspect-ratio: 1; }
.detail-gallery img { width: 100%; height: 100%; object-fit: cover; }
.detail-tag { display: inline-block; background: var(--sale); color: #fff; font-size: 0.72rem; padding: 3px 10px; margin-bottom: 10px; }
.detail-cat { font-size: 0.8rem; color: var(--gold); margin-bottom: 6px; }
.detail-info h1 { font-size: 1.5rem; margin-bottom: 10px; }
.detail-meta { font-size: 0.85rem; color: var(--ink-soft); margin-bottom: 16px; }
.detail-price .price-now { font-size: 1.6rem; }
.detail-desc { color: var(--ink-soft); margin-bottom: 20px; }
.qty-row { display: flex; align-items: center; gap: 10px; margin-bottom: 20px; }
.qty-btn { width: 34px; height: 34px; border: 1px solid var(--line); background: #fff; cursor: pointer; }
#qty-input { width: 50px; text-align: center; border: 1px solid var(--line); padding: 6px; }
.detail-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.detail-actions .btn-dark { width: auto; flex: 1; min-width: 140px; }

.cart-page h1 { font-size: 1.5rem; margin-bottom: 24px; }
.cart-layout { display: grid; grid-template-columns: 1fr 300px; gap: 24px; }
.cart-list { border: 1px solid var(--line); border-radius: 8px; background: var(--bg-elevated); }
.cart-row {
  display: grid;
  grid-template-columns: 72px 1fr auto auto auto;
  gap: 12px; align-items: center;
  padding: 16px; border-bottom: 1px solid var(--line);
}
.cart-thumb { width: 72px; aspect-ratio: 1; overflow: hidden; border-radius: 4px; }
.cart-thumb img { width: 100%; height: 100%; object-fit: cover; }
.cart-summary { border: 1px solid var(--line); border-radius: 8px; padding: 24px; background: var(--bg-elevated); position: sticky; top: 90px; }
.summary-row { display: flex; justify-content: space-between; margin-bottom: 16px; font-size: 1.05rem; }
.summary-note { font-size: 0.8rem; color: var(--ink-soft); margin-bottom: 16px; }
.cart-remove { border: none; background: none; font-size: 1.3rem; cursor: pointer; color: var(--ink-soft); }

.content-page { padding: 40px 0 64px; max-width: 800px; }
.content-page h1 { font-size: 1.6rem; margin-bottom: 20px; }
.prose h2 { font-size: 1.1rem; margin: 20px 0 8px; color: var(--accent); }
.prose p { color: var(--ink-soft); margin-bottom: 10px; }
.contact-card { border: 1px solid var(--line); border-radius: 8px; padding: 32px; background: var(--bg-elevated); }
.contact-company { font-size: 1.2rem; font-weight: 600; }

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--bg-elevated);
  padding: 40px 0 32px;
  margin-top: 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 20px;
  font-size: 0.85rem;
}
.footer-logo { font-size: 1.2rem; font-weight: 700; color: var(--accent); }
.footer-nav { display: flex; flex-wrap: wrap; gap: 16px; }
.footer-legal { text-align: right; color: var(--ink-soft); line-height: 1.7; }

.empty-msg, .empty-state { text-align: center; padding: 40px; color: var(--ink-soft); }
.toast {
  position: fixed; bottom: 24px; left: 50%;
  transform: translateX(-50%) translateY(60px);
  background: var(--accent); color: #fff;
  padding: 12px 22px; border-radius: 4px;
  opacity: 0; transition: all .3s; z-index: 200;
}
.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }

@media (max-width: 900px) {
  .header-row { grid-template-columns: 1fr auto; }
  .header-search { display: none; }
  .banner-slider, .cat-grid { grid-template-columns: 1fr; }
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .detail-layout, .cart-layout, .footer-grid { grid-template-columns: 1fr; }
  .footer-legal { text-align: left; }
  .main-nav { flex-wrap: wrap; gap: 12px; }
}