:root{
  --bg:#ffffff;
  --text:#111111;
  --muted:#666;
  --accent:#0b0b0b;
  --border:#e9e9e9;
  --primary:#6366f1;
  --primary-hover:#4f46e5;
  --secondary:#f8fafc;
  --shadow:0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-lg:0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:"Noto Sans TC",system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,"Apple Color Emoji","Segoe UI Emoji"}
.site-header{
  position:sticky;
  top:0;
  background:rgba(255, 255, 255, 0.95);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:16px 24px;
  z-index:100;
  box-shadow:var(--shadow);
  position:relative;
}

.brand{
  display:flex;
  align-items:center;
  gap:12px;
}

.logo{
  height:48px;
  transition:transform 0.2s ease;
}

.logo:hover{
  transform:scale(1.05);
}

.logo-wrap{
  display:inline-block;
}

.brand-title{
  font-family:"Playfair Display",serif;
  font-size:20px;
  font-weight:600;
  color:var(--text);
  letter-spacing:0.5px;
}

.actions{
  display:flex;
  gap:12px;
  align-items:center;
  justify-content:center;
  flex:1;
}

.actions-right{
  display:flex;
  gap:8px;
  align-items:center;
}

.icon-btn{
  background:var(--secondary);
  border:1px solid transparent;
  padding:10px 16px;
  border-radius:12px;
  cursor:pointer;
  text-decoration:none;
  color:var(--text);
  font-weight:500;
  font-size:14px;
  transition:all 0.2s ease;
  position:relative;
  overflow:hidden;
}

.icon-btn:hover{
  background:var(--primary);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--shadow-lg);
}

.icon-btn:active{
  transform:translateY(0);
}

.icon-link{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;
  height:40px;
  border:1px solid var(--border);
  border-radius:12px;
  text-decoration:none;
  color:var(--text);
  background:#fff;
  transition:all 0.2s ease;
  position:relative;
  overflow:hidden;
}

.icon-link:hover{
  background:var(--primary);
  border-color:var(--primary);
  transform:translateY(-2px);
  box-shadow:var(--shadow-lg);
}

.icon-link:hover .icon-img{
  filter:brightness(0) invert(1);
}

.icon-img{
  width:20px;
  height:20px;
  object-fit:contain;
  transition:filter 0.2s ease;
}

.cart-btn{
  position:relative;
}

.cart-count{
  position:absolute !important;
  bottom:-4px !important;
  left:-4px !important;
  background:#000000 !important;
  color:#ffffff !important;
  border-radius:50% !important;
  width:22px !important;
  height:22px !important;
  display:flex !important;
  align-items:center !important;
  justify-content:center !important;
  font-size:10px !important;
  font-weight:800 !important;
  min-width:22px !important;
  transition:all 0.2s ease !important;
  z-index:9999 !important;
  border:3px solid #fff !important;
  box-shadow:0 3px 8px rgba(0,0,0,0.4) !important;
  line-height:1 !important;
  padding:0 !important;
  text-align:center !important;
}

.cart-count:empty,
.cart-count[style*="display: none"]{
  display:none !important;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .site-header{
    padding:12px 16px;
  }
  
  .brand-title{
    font-size:18px;
  }
  
  .logo{
    height:40px;
  }
  
  .actions{
    gap:8px;
  }
  
  .actions-right{
    gap:6px;
  }
  
  .icon-btn{
    padding:8px 12px;
    font-size:13px;
  }
  
  .icon-link{
    width:36px;
    height:36px;
  }
  
  .icon-img{
    width:18px;
    height:18px;
  }
}

@media (max-width: 480px) {
  .site-header{
    padding:10px 12px;
    flex-wrap: wrap;
  }
  
  .brand{
    gap:8px;
    flex: 1;
    min-width: 0;
  }
  
  .brand-title{
    font-size:16px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  
  .logo{
    height:36px;
    flex-shrink: 0;
  }
  
  .actions{
    gap:6px;
    flex-wrap: wrap;
    justify-content: center;
    width: 100%;
    order: 3;
    margin-top: 8px;
  }
  
  .actions-right{
    gap:4px;
    flex-shrink: 0;
  }
  
  .icon-btn{
    padding:6px 10px;
    font-size:12px;
    white-space: nowrap;
  }
  
  .icon-link{
    width:32px;
    height:32px;
  }
  
  .icon-img{
    width:16px;
    height:16px;
  }
  
  /* 確保購物車按鈕在小屏幕上可見 */
  .cart-btn{
    position: relative;
    min-width: 40px;
  }
}
.hero{height:220px;overflow:hidden}
.hero-img{width:100%;height:100%;object-fit:cover;display:block;filter:saturate(0.9)}
.container{max-width:1200px;margin:0 auto;padding:30px 16px}
.promo{margin:10px 0 30px 0}
.promo h3{margin:0;color:var(--muted);font-weight:500}
.promo h2{margin:6px 0 10px 0;font-family:"Playfair Display",serif;letter-spacing:6px;border-bottom:2px solid var(--text);display:inline-block;padding-bottom:6px}
.promo p{margin:0;color:var(--muted)}
.section-title{font-family:"Playfair Display",serif;margin:0 0 16px 0}
.products{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}

/* 产品页面布局 */
.product-page-layout{
  display:grid;
  grid-template-columns:280px 1fr;
  gap:32px;
  margin-top:20px;
}

/* 筛选侧边栏 */
.filter-sidebar{
  background:#fff;
  border:1px solid var(--border);
  border-radius:12px;
  padding:20px;
  height:fit-content;
  position:sticky;
  top:100px;
}

.filter-section{
  margin-bottom:24px;
}

.filter-section:last-child{
  margin-bottom:0;
}

.filter-section h3{
  font-family:"Playfair Display",serif;
  font-size:18px;
  margin:0 0 16px 0;
  color:var(--text);
  border-bottom:1px solid var(--border);
  padding-bottom:8px;
}

.filter-options{
  display:flex;
  flex-direction:column;
  gap:8px;
}

.filter-link{
  display:block;
  padding:8px 12px;
  text-decoration:none;
  color:var(--muted);
  border-radius:6px;
  transition:all 0.2s ease;
  font-size:14px;
}

.filter-link:hover{
  background:var(--secondary);
  color:var(--text);
}

.filter-link.active{
  background:var(--text);
  color:#fff;
}

/* 筛选组 */
.filter-group{
  margin-bottom:20px;
}

.filter-group:last-child{
  margin-bottom:0;
}

.filter-group-header{
  display:flex;
  justify-content:space-between;
  align-items:center;
  margin-bottom:12px;
  cursor:pointer;
}

.filter-group-header h4{
  margin:0;
  font-size:14px;
  font-weight:500;
  color:var(--text);
}

.price-range-display{
  font-size:12px;
  color:var(--muted);
  font-weight:500;
}

.toggle-icon{
  font-size:16px;
  color:var(--muted);
  transition:transform 0.2s ease;
}

.collapsible .filter-group-header:hover .toggle-icon{
  transform:rotate(45deg);
}

/* 价格滑块 */
.price-slider-container{
  position:relative;
  height:20px;
  margin:16px 0;
}

.price-slider{
  position:absolute;
  width:100%;
  height:4px;
  background:var(--border);
  border-radius:2px;
  outline:none;
  -webkit-appearance:none;
  appearance:none;
}

.price-slider::-webkit-slider-track{
  background:var(--border);
  height:4px;
  border-radius:2px;
}

.price-slider::-webkit-slider-runnable-track{
  background:var(--border);
  height:4px;
  border-radius:2px;
}

.price-slider::-moz-range-track{
  background:var(--border);
  height:4px;
  border-radius:2px;
  border:none;
}

.price-slider::-webkit-slider-thumb{
  -webkit-appearance:none;
  appearance:none;
  width:16px;
  height:16px;
  background:var(--text);
  border-radius:50%;
  cursor:pointer;
  border:2px solid #fff;
  box-shadow:0 2px 4px rgba(0,0,0,0.1);
}

.price-slider::-moz-range-thumb{
  width:16px;
  height:16px;
  background:var(--text);
  border-radius:50%;
  cursor:pointer;
  border:2px solid #fff;
  box-shadow:0 2px 4px rgba(0,0,0,0.1);
}

/* 可折叠选项 */
.filter-options-collapsible{
  display:flex;
  flex-direction:column;
  gap:8px;
  margin-top:8px;
}

.filter-checkbox{
  display:flex;
  align-items:center;
  gap:8px;
  cursor:pointer;
  padding:4px 0;
  font-size:14px;
  color:var(--text);
}

.filter-checkbox input[type="checkbox"]{
  width:16px;
  height:16px;
  accent-color:var(--text);
  cursor:pointer;
}

.filter-checkbox:hover{
  color:var(--text);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .product-page-layout{
    grid-template-columns:1fr;
    gap:20px;
  }
  
  .filter-sidebar{
    position:static;
    order:2;
  }
  
  .product-catalog{
    order:1;
  }
  
  .products{
    grid-template-columns:repeat(2,1fr);
    gap:16px;
  }
}

@media (max-width: 480px) {
  .products{
    grid-template-columns:1fr;
  }
  
  .filter-sidebar{
    padding:16px;
  }
}
.card{position:relative;border:1px solid var(--border);background:#f6f6f6}
.card .tag{position:absolute;top:8px;left:8px;background:#333;color:#fff;font-size:12px;padding:2px 6px}
.card .media{aspect-ratio:1/1;display:block;background:
  linear-gradient(135deg,#eee,#f8f8f8);
  border-bottom:1px solid var(--border);
}
.card .name{margin:10px 12px 6px 12px;font-weight:600}
.card .price{margin:0 12px 16px 12px;color:var(--muted)}
.site-footer{border-top:1px solid var(--border);display:grid;grid-template-columns:repeat(3,1fr);gap:16px;padding:24px 16px}
.site-footer .muted{color:var(--muted);margin:0 0 6px 0}
.site-footer a{color:var(--text);text-decoration:none}

/* product detail */
.product-detail{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start}
.pd-image-wrap{border:1px solid var(--border);background:#f6f6f6;min-height:320px;display:flex;align-items:center;justify-content:center}
#pd-image{max-width:100%;max-height:520px;object-fit:contain}
.pd-title{margin:0 0 8px 0}
.pd-price{margin:6px 0 14px 0}
.pd-compare{color:var(--muted);text-decoration:line-through;margin-right:6px}
.pd-label{display:block;margin:10px 0;color:var(--muted)}
.pd-select{width:100%;padding:8px;border:1px solid var(--border);background:#fff}
.pd-qty{display:flex;gap:6px;align-items:center}
.qty-input{width:64px;padding:6px;border:1px solid var(--border);text-align:center}
.qty-btn{width:30px;height:30px;border:1px solid var(--border);background:#fff;cursor:pointer}
.primary-btn{display:inline-block;margin-top:10px;padding:10px 14px;border:1px solid var(--text);background:#111;color:#fff;cursor:pointer}

@media (max-width:900px){
  .products{grid-template-columns:1fr 1fr}
  .product-detail{grid-template-columns:1fr}
}
@media (max-width:600px){
  .products{grid-template-columns:1fr}
  .hero{height:160px}
  .logo{height:90px}
  
  /* 移動端容器優化 */
  .container{
    padding: 20px 12px;
  }
  
  /* 產品卡片在移動端的優化 */
  .card{
    margin-bottom: 16px;
  }
  
  .card .name{
    font-size: 14px;
    line-height: 1.4;
  }
  
  .card .price{
    font-size: 13px;
  }
  
  /* 產品詳情頁面移動端優化 */
  .product-detail{
    gap: 20px;
  }
  
  .pd-image-wrap{
    min-height: 250px;
  }
  
  .pd-title{
    font-size: 20px;
    line-height: 1.3;
  }
  
  .pd-price{
    font-size: 18px;
  }
  
  /* 表單元素移動端優化 */
  .pd-select,
  .qty-input{
    font-size: 16px; /* 防止 iOS 縮放 */
  }
  
  .primary-btn{
    width: 100%;
    padding: 12px;
    font-size: 16px;
  }
}


