/* ========================================
   Costco 个人护理商品展示 - 样式表
   ======================================== */

/* CSS 变量 - 设计系统 */
:root {
  /* 颜色系统 */
  --color-primary: #005F98;
  --color-primary-dark: #004A7A;
  --color-primary-light: #E6F2F8;
  --color-secondary: #F5A623;
  --color-success: #22C55E;
  --color-danger: #EF4444;
  --color-warning: #F59E0B;
  
  /* 中性色 */
  --color-text-primary: #1F2937;
  --color-text-secondary: #6B7280;
  --color-text-tertiary: #9CA3AF;
  --color-border: #E5E7EB;
  --color-border-light: #F3F4F6;
  --color-bg-primary: #FFFFFF;
  --color-bg-secondary: #F9FAFB;
  --color-bg-tertiary: #F3F4F6;
  
  /* 间距系统 */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  
  /* 圆角 */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;
  
  /* 阴影 */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px 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);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* 字体 */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  
  /* 过渡 */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
  
  /* 容器 */
  --container-max: 1280px;
}

/* 全局重置 */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-bg-secondary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* ========================================
   头部导航
   ======================================== */
.header {
  background: var(--color-bg-primary);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) 0;
  gap: var(--space-6);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.header-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: -0.025em;
}

.header-actions {
  flex: 1;
  max-width: 480px;
}

.search-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.search-input {
  width: 100%;
  height: 44px;
  padding: 0 var(--space-12) 0 var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  background: var(--color-bg-secondary);
  transition: all var(--transition-base);
}

.search-input:focus {
  outline: none;
  border-color: var(--color-primary);
  background: var(--color-bg-primary);
  box-shadow: 0 0 0 3px rgba(0, 95, 152, 0.1);
}

.search-input::placeholder {
  color: var(--color-text-tertiary);
}

.search-btn {
  position: absolute;
  right: var(--space-2);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: var(--color-primary);
  color: white;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background var(--transition-base);
}

.search-btn:hover {
  background: var(--color-primary-dark);
}

/* ========================================
   筛选控制栏
   ======================================== */
.filter-bar {
  background: var(--color-bg-primary);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-4) 0;
}

.filter-content {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-6);
}

.filter-group {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.filter-label {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.sort-controls {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.sort-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-border);
  background: var(--color-bg-primary);
  color: var(--color-text-secondary);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-base);
}

.sort-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.sort-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

.stock-filter {
  display: flex;
  align-items: center;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--color-primary);
}

.price-select {
  height: 36px;
  padding: 0 var(--space-8) 0 var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  background: var(--color-bg-primary);
  cursor: pointer;
  transition: border-color var(--transition-base);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236B7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
}

.price-select:focus {
  outline: none;
  border-color: var(--color-primary);
}

.filter-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border-light);
}

.sort-description {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  margin: 0;
}

.result-count {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
}

/* ========================================
   主内容区
   ======================================== */
.main {
  padding: var(--space-8) 0;
  min-height: calc(100vh - 300px);
}

/* ========================================
   骨架屏加载状态
   ======================================== */
.skeleton-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-6);
}

.skeleton-card {
  background: var(--color-bg-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.skeleton-image {
  width: 100%;
  height: 240px;
  background: linear-gradient(90deg, var(--color-bg-tertiary) 25%, var(--color-border-light) 50%, var(--color-bg-tertiary) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

.skeleton-content {
  padding: var(--space-4);
}

.skeleton-line {
  height: 14px;
  background: linear-gradient(90deg, var(--color-bg-tertiary) 25%, var(--color-border-light) 50%, var(--color-bg-tertiary) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-3);
}

.skeleton-brand {
  width: 40%;
  height: 12px;
}

.skeleton-name {
  width: 100%;
}

.skeleton-name.short {
  width: 70%;
}

.skeleton-price {
  width: 35%;
  height: 20px;
  margin-top: var(--space-4);
}

.skeleton-meta {
  display: flex;
  justify-content: space-between;
  margin-top: var(--space-4);
}

.skeleton-rating {
  width: 60px;
}

.skeleton-stock {
  width: 50px;
}

@keyframes shimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* ========================================
   错误状态
   ======================================== */
.error-state {
  text-align: center;
  padding: var(--space-16) var(--space-6);
  background: var(--color-bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  max-width: 480px;
  margin: var(--space-12) auto;
}

.error-icon {
  color: var(--color-danger);
  margin-bottom: var(--space-4);
}

.error-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.error-message {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
}

/* ========================================
   空状态
   ======================================== */
.empty-state {
  text-align: center;
  padding: var(--space-16) var(--space-6);
  color: var(--color-text-tertiary);
}

.empty-icon {
  margin-bottom: var(--space-4);
}

.empty-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.empty-message {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
}

/* ========================================
   商品网格
   ======================================== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-6);
}

/* ========================================
   商品卡片
   ======================================== */
.product-card {
  background: var(--color-bg-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  cursor: pointer;
  border: 1px solid var(--color-border-light);
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border);
}

.product-image-wrapper {
  position: relative;
  width: 100%;
  height: 240px;
  overflow: hidden;
  background: var(--color-bg-tertiary);
}

.product-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.product-card:hover .product-image {
  transform: scale(1.05);
}

.product-image-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-tertiary);
  background: var(--color-bg-tertiary);
}

.product-badge {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  display: flex;
  gap: var(--space-2);
}

.badge {
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.badge-new {
  background: var(--color-secondary);
  color: white;
}

.badge-sale {
  background: var(--color-danger);
  color: white;
}

.product-info {
  padding: var(--space-4);
}

.product-brand {
  font-size: var(--font-size-xs);
  font-weight: 500;
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-1);
}

.product-name {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.4;
  min-height: 2.8em;
}

.product-price {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.product-price-currency {
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.product-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border-light);
}

.product-rating {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.stars {
  display: flex;
  gap: 1px;
}

.star {
  color: var(--color-border);
}

.star.filled {
  color: var(--color-secondary);
}

.rating-value {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-left: var(--space-1);
}

.review-count {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

.product-stock {
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
  text-transform: uppercase;
}

.product-stock.in-stock {
  background: rgba(34, 197, 94, 0.1);
  color: var(--color-success);
}

.product-stock.out-of-stock {
  background: rgba(239, 68, 68, 0.1);
  color: var(--color-danger);
}

.product-stock.unknown {
  background: var(--color-bg-tertiary);
  color: var(--color-text-tertiary);
}

/* ========================================
   分页
   ======================================== */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-10);
}

.pagination-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border: 1px solid var(--color-border);
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-base);
}

.pagination-btn:hover:not(:disabled) {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.pagination-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.pagination-pages {
  display: flex;
  gap: var(--space-1);
}

.page-btn {
  min-width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-base);
}

.page-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.page-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

/* ========================================
   按钮
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
}

.btn-primary {
  background: var(--color-primary);
  color: white;
}

.btn-primary:hover {
  background: var(--color-primary-dark);
}

.btn-secondary {
  background: var(--color-bg-primary);
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

.btn-secondary:hover {
  background: var(--color-primary-light);
}

/* ========================================
   页脚
   ======================================== */
.footer {
  background: var(--color-bg-primary);
  border-top: 1px solid var(--color-border);
  padding: var(--space-12) 0 var(--space-6);
  margin-top: var(--space-16);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

.footer-title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.footer-bottom {
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.footer-bottom p {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}

/* ========================================
   模态框
   ======================================== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

.modal-container {
  position: relative;
  background: var(--color-bg-primary);
  border-radius: var(--radius-xl);
  max-width: 900px;
  width: 100%;
  max-height: 90vh;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.modal-close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: var(--color-bg-tertiary);
  color: var(--color-text-secondary);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-base);
  z-index: 10;
}

.modal-close:hover {
  background: var(--color-border);
  color: var(--color-text-primary);
}

.modal-body {
  padding: var(--space-8);
  overflow-y: auto;
  max-height: 90vh;
}

/* ========================================
   商品详情
   ======================================== */
.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-10);
}

.product-detail-gallery {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.product-detail-main-image {
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-bg-tertiary);
}

.product-detail-main-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-detail-thumbnails {
  display: flex;
  gap: var(--space-2);
  overflow-x: auto;
  padding-bottom: var(--space-2);
}

.thumbnail {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 2px solid transparent;
  cursor: pointer;
  transition: border-color var(--transition-base);
  flex-shrink: 0;
}

.thumbnail:hover,
.thumbnail.active {
  border-color: var(--color-primary);
}

.thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-detail-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.product-detail-brand {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.product-detail-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1.3;
}

.product-detail-rating {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.product-detail-price {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-primary);
}

.product-detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  padding: var(--space-4);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-md);
}

.meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.meta-icon {
  color: var(--color-primary);
}

.product-detail-description {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.product-detail-specs {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.specs-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text-primary);
}

.specs-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}

.spec-item {
  display: flex;
  justify-content: space-between;
  padding: var(--space-3);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
}

.spec-name {
  font-weight: 500;
  color: var(--color-text-secondary);
}

.spec-value {
  color: var(--color-text-primary);
}

.product-detail-actions {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.btn-costco-link {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-6);
  background: var(--color-primary);
  color: white;
  text-decoration: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  transition: background var(--transition-base);
}

.btn-costco-link:hover {
  background: var(--color-primary-dark);
}

/* ========================================
   返回顶部
   ======================================== */
.back-to-top {
  position: fixed;
  bottom: var(--space-8);
  right: var(--space-8);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: white;
  border: none;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  z-index: 50;
}

.back-to-top:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

/* ========================================
   Toast 通知
   ======================================== */
.toast-container {
  position: fixed;
  top: var(--space-6);
  right: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  z-index: 2000;
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  background: var(--color-bg-primary);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  animation: toastSlideIn 0.3s ease;
  min-width: 280px;
  max-width: 400px;
}

@keyframes toastSlideIn {
  from {
    opacity: 0;
    transform: translateX(100%);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.toast-icon {
  flex-shrink: 0;
}

.toast-message {
  flex: 1;
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
}

.toast-close {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  color: var(--color-text-tertiary);
  cursor: pointer;
  border-radius: var(--radius-sm);
}

.toast-close:hover {
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
}

.toast.success .toast-icon {
  color: var(--color-success);
}

.toast.error .toast-icon {
  color: var(--color-danger);
}

.toast.warning .toast-icon {
  color: var(--color-warning);
}

.toast.info .toast-icon {
  color: var(--color-primary);
}

/* ========================================
   工具类
   ======================================== */
.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;
}

/* ========================================
   响应式设计
   ======================================== */
@media (max-width: 1024px) {
  .product-detail {
    grid-template-columns: 1fr;
  }
  
  .product-detail-gallery {
    order: -1;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--space-4);
  }
  
  .header-content {
    flex-direction: column;
    gap: var(--space-4);
  }
  
  .header-actions {
    width: 100%;
    max-width: none;
  }
  
  .filter-content {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-4);
  }
  
  .filter-group {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .sort-controls {
    width: 100%;
    overflow-x: auto;
    padding-bottom: var(--space-2);
  }
  
  .sort-btn {
    white-space: nowrap;
  }
  
  .filter-summary {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }
  
  .products-grid {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--space-4);
  }
  
  .product-image-wrapper {
    height: 200px;
  }
  
  .specs-list {
    grid-template-columns: 1fr;
  }
  
  .modal-body {
    padding: var(--space-4);
  }
  
  .pagination {
    flex-wrap: wrap;
  }
  
  .back-to-top {
    bottom: var(--space-4);
    right: var(--space-4);
  }
  
  .toast-container {
    left: var(--space-4);
    right: var(--space-4);
  }
  
  .toast {
    min-width: auto;
    max-width: none;
  }
}

@media (max-width: 480px) {
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
  }
  
  .product-image-wrapper {
    height: 160px;
  }
  
  .product-info {
    padding: var(--space-3);
  }
  
  .product-name {
    font-size: var(--font-size-sm);
    min-height: 2.4em;
  }
  
  .product-price {
    font-size: var(--font-size-base);
  }
  
  .product-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }
  
  .pagination-pages {
    display: none;
  }
}

/* ========================================
   打印样式
   ======================================== */
@media print {
  .header,
  .filter-bar,
  .pagination,
  .back-to-top,
  .modal,
  .toast-container {
    display: none !important;
  }
  
  .main {
    padding: 0;
  }
  
  .product-card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ccc;
  }
}