/* ============================================
   唇部产品 - 产品目录风格样式
   网站: www.lvrunlip.cn
   关键词: 唇部产品、有机唇膏、天然唇部护理
   ============================================ */

/* CSS 变量 */
:root {
  --accent-color: #e57373;
  --accent-hover: #ef5350;
  --text-primary: #333;
  --text-secondary: #666;
  --text-light: #999;
  --bg-primary: #fff;
  --bg-secondary: #fafafa;
  --bg-card: #fff;
  --border-color: #e0e0e0;
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --max-width: 1200px;
  --header-height: 64px;
}

/* 重置样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-secondary);
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ============================================
   布局组件
   ============================================ */

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 40px 0;
}

.section-title {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 24px;
  color: var(--text-primary);
}

/* ============================================
   页头
   ============================================ */

.header {
  background: var(--bg-primary);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.logo {
  font-size: 22px;
  font-weight: 700;
  color: var(--accent-color);
}

.logo span {
  color: var(--text-primary);
}

.nav {
  display: flex;
  gap: 32px;
}

.nav a {
  font-size: 15px;
  color: var(--text-secondary);
  transition: color 0.2s;
}

.nav a:hover,
.nav a.active {
  color: var(--accent-color);
}

.search-box {
  display: flex;
  align-items: center;
  background: var(--bg-secondary);
  border-radius: 20px;
  padding: 8px 16px;
  width: 240px;
}

.search-box input {
  border: none;
  background: none;
  outline: none;
  flex: 1;
  font-size: 14px;
}

.search-box button {
  border: none;
  background: none;
  cursor: pointer;
  color: var(--text-light);
}

/* ============================================
   Hero 区域
   ============================================ */

.hero {
  background: linear-gradient(135deg, #fff5f5 0%, #fff 100%);
  padding: 60px 0;
  text-align: center;
}

.hero h1 {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.hero p {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 32px;
}

.hero-search {
  max-width: 500px;
  margin: 0 auto;
}

.hero-search .search-box {
  width: 100%;
  background: var(--bg-primary);
  border: 2px solid var(--border-color);
  padding: 12px 20px;
}

/* ============================================
   分类导航
   ============================================ */

.categories {
  padding: 32px 0;
  background: var(--bg-primary);
}

.category-list {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

.category-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px 32px;
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  transition: all 0.2s;
  min-width: 120px;
}

.category-item:hover {
  background: var(--accent-color);
  color: #fff;
  transform: translateY(-2px);
}

.category-item .icon {
  font-size: 32px;
  margin-bottom: 8px;
}

.category-item .name {
  font-size: 14px;
  font-weight: 500;
}

/* ============================================
   产品卡片
   ============================================ */

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.product-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s;
}

.product-card:hover {
  box-shadow: var(--shadow-md);
}

.product-image {
  aspect-ratio: 1;
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 60px;
}

.product-info {
  padding: 16px;
}

.product-name {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.product-desc {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 12px;
  line-height: 1.5;
}

.product-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.product-price {
  font-size: 18px;
  font-weight: 700;
  color: var(--accent-color);
}

.product-price .original {
  font-size: 13px;
  color: var(--text-light);
  text-decoration: line-through;
  margin-left: 8px;
  font-weight: 400;
}

.product-rating {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  color: var(--text-secondary);
}

.stars {
  color: #ffb300;
}

/* ============================================
   文章列表
   ============================================ */

.article-section {
  background: var(--bg-primary);
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.article-list {
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  padding: 20px;
}

.article-list h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--accent-color);
  display: inline-block;
}

.article-list ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.article-list li a {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.5;
  transition: color 0.2s;
}

.article-list li a::before {
  content: '•';
  color: var(--accent-color);
  flex-shrink: 0;
}

.article-list li a:hover {
  color: var(--accent-color);
}

/* ============================================
   面包屑
   ============================================ */

.breadcrumb {
  padding: 16px 0;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.breadcrumb ol {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
}

.breadcrumb a:hover {
  color: var(--accent-color);
}

.breadcrumb .current {
  color: var(--text-primary);
}

/* ============================================
   分类页头部
   ============================================ */

.category-header {
  padding: 32px 0;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
}

.category-header h1 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 8px;
}

.category-header .count {
  color: var(--text-secondary);
  font-size: 14px;
}

/* ============================================
   筛选器
   ============================================ */

.filter-bar {
  padding: 16px 0;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
}

.filter-bar .container {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.filter-group label {
  font-size: 13px;
  color: var(--text-secondary);
}

.filter-group select {
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-primary);
  font-size: 13px;
  cursor: pointer;
}

/* ============================================
   分页
   ============================================ */

.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 40px;
}

.pagination a,
.pagination span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--text-secondary);
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  transition: all 0.2s;
}

.pagination a:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
}

.pagination .current {
  background: var(--accent-color);
  border-color: var(--accent-color);
  color: #fff;
}

/* ============================================
   文章详情页
   ============================================ */

.article-header {
  padding: 40px 0;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
}

.article-meta-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.article-category {
  padding: 4px 12px;
  background: var(--accent-color);
  color: #fff;
  border-radius: var(--radius-sm);
  font-size: 12px;
}

.article-date {
  color: var(--text-light);
  font-size: 13px;
}

.article-title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 16px;
}

.article-excerpt {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.article-content {
  padding: 40px 0;
  background: var(--bg-primary);
}

.article-body {
  max-width: 800px;
  margin: 0 auto;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-primary);
}

.article-body h2 {
  font-size: 24px;
  font-weight: 600;
  margin: 32px 0 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--border-color);
}

.article-body h3 {
  font-size: 20px;
  font-weight: 600;
  margin: 24px 0 12px;
}

.article-body p {
  margin-bottom: 16px;
}

.article-body ul,
.article-body ol {
  margin-bottom: 16px;
  padding-left: 24px;
}

.article-body li {
  margin-bottom: 8px;
}

.article-body strong {
  color: var(--accent-color);
}

/* 产品详情 */
.product-detail {
  padding: 40px 0;
  background: var(--bg-primary);
}

.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.product-gallery {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 120px;
}

.product-detail-info h1 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 12px;
}

.product-detail-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.product-detail-price {
  font-size: 32px;
  font-weight: 700;
  color: var(--accent-color);
}

.product-detail-stock {
  padding: 4px 12px;
  background: #e8f5e9;
  color: #2e7d32;
  border-radius: var(--radius-sm);
  font-size: 13px;
}

.product-detail-desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
}

.product-specs {
  margin-bottom: 24px;
}

.product-specs h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 12px;
}

.product-specs ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.product-specs li {
  display: flex;
  font-size: 14px;
}

.product-specs li span:first-child {
  color: var(--text-secondary);
  width: 100px;
  flex-shrink: 0;
}

.product-actions {
  display: flex;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 32px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
}

.btn-primary {
  background: var(--accent-color);
  color: #fff;
}

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

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

.btn-secondary:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
}

/* ============================================
   相关推荐
   ============================================ */

.related-section {
  padding: 40px 0;
  background: var(--bg-secondary);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.related-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.related-image {
  aspect-ratio: 1;
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
}

.related-info {
  padding: 12px;
}

.related-name {
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.related-price {
  font-size: 16px;
  font-weight: 700;
  color: var(--accent-color);
}

/* ============================================
   404 页面
   ============================================ */

.error-page {
  min-height: calc(100vh - var(--header-height) - 300px);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 20px;
}

.error-content {
  max-width: 500px;
}

.error-code {
  font-size: 120px;
  font-weight: 700;
  color: var(--accent-color);
  line-height: 1;
  margin-bottom: 16px;
}

.error-title {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.error-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
}

/* ============================================
   页脚
   ============================================ */

.footer {
  background: var(--text-primary);
  color: #fff;
  padding: 48px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand .logo {
  color: var(--accent-color);
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
}

.footer-column h4 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
}

.footer-column ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-column a {
  font-size: 14px;
  color: var(--text-light);
  transition: color 0.2s;
}

.footer-column a:hover {
  color: var(--accent-color);
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid #444;
  text-align: center;
  font-size: 13px;
  color: var(--text-light);
}

/* ============================================
   响应式设计
   ============================================ */

@media (max-width: 1024px) {
  .product-detail-grid {
    gap: 32px;
  }

  .related-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .header .container {
    flex-wrap: wrap;
    height: auto;
    padding: 12px 20px;
  }

  .nav {
    order: 3;
    width: 100%;
    justify-content: center;
    margin-top: 12px;
    gap: 20px;
  }

  .search-box {
    width: 180px;
  }

  .hero h1 {
    font-size: 28px;
  }

  .category-list {
    flex-wrap: nowrap;
    overflow-x: auto;
    justify-content: flex-start;
    padding-bottom: 8px;
    -webkit-overflow-scrolling: touch;
  }

  .category-item {
    min-width: 100px;
    padding: 16px 24px;
    flex-shrink: 0;
  }

  .product-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .article-grid {
    grid-template-columns: 1fr;
  }

  .product-detail-grid {
    grid-template-columns: 1fr;
  }

  .product-gallery {
    aspect-ratio: 4/3;
  }

  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .article-title {
    font-size: 24px;
  }

  .article-body {
    font-size: 15px;
  }

  .error-code {
    font-size: 80px;
  }
}

@media (max-width: 480px) {
  .product-grid {
    grid-template-columns: 1fr;
  }

  .related-grid {
    grid-template-columns: 1fr;
  }

  .filter-bar .container {
    flex-direction: column;
    align-items: flex-start;
  }

  .product-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .error-actions {
    flex-direction: column;
  }
}