/* ===== CSS Variables ===== */
:root {
  --primary-color: #8B4513;
  --accent-color: #D4A574;
  --bg-color: #FDF8F3;
  --card-bg: #FFFFFF;
  --text-primary: #2C1810;
  --text-secondary: #6B5B4F;
  --border-color: #E8DDD4;
  --shadow: 0 2px 8px rgba(139, 69, 19, 0.08);
  --shadow-hover: 0 4px 16px rgba(139, 69, 19, 0.12);
  --radius: 8px;
  --radius-lg: 12px;
  --max-width: 1200px;
  --header-height: 64px;
}

/* ===== Reset ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

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

ul {
  list-style: none;
}

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

/* ===== Header ===== */
.header {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 22px;
  font-weight: 700;
  color: var(--primary-color);
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo::before {
  content: "🏺";
  font-size: 24px;
}

.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(--primary-color);
}

.header-search {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header-search input {
  width: 200px;
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  font-size: 14px;
  background: var(--bg-color);
}

.header-search input:focus {
  outline: none;
  border-color: var(--accent-color);
}

.search-btn {
  padding: 8px 16px;
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--radius);
  font-size: 14px;
  cursor: pointer;
  transition: opacity 0.2s;
}

.search-btn:hover {
  opacity: 0.9;
}

/* ===== Hero Section ===== */
.hero {
  background: linear-gradient(135deg, var(--primary-color) 0%, #A0522D 100%);
  color: white;
  padding: 60px 24px;
  text-align: center;
}

.hero-title {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 12px;
}

.hero-subtitle {
  font-size: 16px;
  opacity: 0.9;
  margin-bottom: 32px;
}

.hero-search {
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  gap: 12px;
  background: white;
  padding: 8px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-hover);
}

.hero-search input {
  flex: 1;
  padding: 12px 16px;
  border: none;
  font-size: 15px;
  background: transparent;
}

.hero-search input:focus {
  outline: none;
}

.hero-search select {
  padding: 12px 16px;
  border: none;
  border-left: 1px solid var(--border-color);
  font-size: 14px;
  color: var(--text-secondary);
  background: transparent;
  cursor: pointer;
}

.hero-search button {
  padding: 12px 28px;
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: opacity 0.2s;
}

.hero-search button:hover {
  opacity: 0.9;
}

/* ===== Section Title ===== */
.section-title {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.section-title::before {
  content: "";
  width: 4px;
  height: 20px;
  background: var(--primary-color);
  border-radius: 2px;
}

/* ===== Categories Section ===== */
.categories-section {
  padding: 40px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}

.category-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  transition: all 0.2s;
  cursor: pointer;
}

.category-card:hover {
  border-color: var(--accent-color);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

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

.category-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
}

.category-count {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* ===== Featured Section ===== */
.featured-section {
  padding: 40px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.items-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.item-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.2s;
}

.item-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.item-image {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, #F5E6D3 0%, #E8DDD4 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 60px;
}

.item-info {
  padding: 16px;
}

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

.item-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.item-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

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

.item-tag {
  display: inline-block;
  padding: 4px 10px;
  background: var(--bg-color);
  border-radius: 4px;
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 8px;
}

/* ===== Articles Section ===== */
.articles-section {
  padding: 40px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}

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

.article-column {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 20px;
}

.column-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border-color);
}

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

.article-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-color);
}

.article-item:last-child {
  border-bottom: none;
}

.article-num {
  width: 20px;
  height: 20px;
  background: var(--accent-color);
  color: white;
  font-size: 12px;
  font-weight: 600;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.article-num.hot {
  background: #E74C3C;
}

.article-title {
  font-size: 14px;
  color: var(--text-primary);
  line-height: 1.5;
  flex: 1;
}

.article-title:hover {
  color: var(--primary-color);
}

/* ===== Footer ===== */
.footer {
  background: var(--text-primary);
  color: white;
  padding: 40px 24px 20px;
  margin-top: 60px;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 30px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand .logo {
  color: white;
  margin-bottom: 12px;
}

.footer-desc {
  font-size: 14px;
  opacity: 0.7;
  line-height: 1.6;
}

.footer-title {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
}

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

.footer-links a {
  font-size: 14px;
  opacity: 0.7;
  transition: opacity 0.2s;
}

.footer-links a:hover {
  opacity: 1;
}

.footer-bottom {
  padding-top: 20px;
  text-align: center;
  font-size: 13px;
  opacity: 0.6;
}

/* ===== Breadcrumb ===== */
.breadcrumb {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border-color);
  padding: 16px 24px;
}

.breadcrumb-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  font-size: 14px;
  color: var(--text-secondary);
}

.breadcrumb a {
  color: var(--text-secondary);
}

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

.breadcrumb span {
  margin: 0 8px;
  color: var(--border-color);
}

.breadcrumb strong {
  color: var(--text-primary);
  font-weight: 500;
}

/* ===== Page Header ===== */
.page-header {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border-color);
  padding: 30px 24px;
}

.page-header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.page-title {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 8px;
}

.page-desc {
  font-size: 14px;
  color: var(--text-secondary);
}

/* ===== Filters ===== */
.filters-section {
  padding: 20px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.filters-bar {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

.filter-group {
  display: flex;
  gap: 8px;
  align-items: center;
}

.filter-label {
  font-size: 14px;
  color: var(--text-secondary);
}

.filter-btn {
  padding: 8px 16px;
  border: 1px solid var(--border-color);
  background: var(--card-bg);
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
}

.filter-btn:hover,
.filter-btn.active {
  border-color: var(--primary-color);
  color: var(--primary-color);
  background: rgba(139, 69, 19, 0.05);
}

/* ===== Items List ===== */
.items-list-section {
  padding: 20px 24px 40px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.items-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.list-item {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  gap: 20px;
  transition: all 0.2s;
}

.list-item:hover {
  box-shadow: var(--shadow);
  border-color: var(--accent-color);
}

.list-item-image {
  width: 160px;
  height: 120px;
  background: linear-gradient(135deg, #F5E6D3 0%, #E8DDD4 100%);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  flex-shrink: 0;
}

.list-item-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.list-item-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.list-item-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.list-item-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.list-item-price {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-color);
  white-space: nowrap;
}

.list-item-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 12px;
}

.list-item-meta {
  display: flex;
  gap: 16px;
  font-size: 13px;
  color: var(--text-secondary);
}

.list-item-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

.view-btn {
  padding: 8px 20px;
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--radius);
  font-size: 14px;
  cursor: pointer;
  transition: opacity 0.2s;
}

.view-btn:hover {
  opacity: 0.9;
}

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

.pagination a,
.pagination span {
  padding: 10px 16px;
  border: 1px solid var(--border-color);
  background: var(--card-bg);
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--text-secondary);
  transition: all 0.2s;
}

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

.pagination .current {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: white;
}

.pagination .prev,
.pagination .next {
  padding: 10px 20px;
}

/* ===== Article Page ===== */
.article-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 40px 24px;
}

.article-header {
  margin-bottom: 30px;
}

.article-main-title {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.4;
}

.article-meta-bar {
  display: flex;
  gap: 20px;
  font-size: 14px;
  color: var(--text-secondary);
}

.article-meta-bar span {
  display: flex;
  align-items: center;
  gap: 6px;
}

.article-featured-image {
  width: 100%;
  height: 400px;
  background: linear-gradient(135deg, #F5E6D3 0%, #E8DDD4 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 120px;
  margin-bottom: 30px;
}

.article-content {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-primary);
}

.article-content p {
  margin-bottom: 20px;
}

.article-content h2 {
  font-size: 22px;
  font-weight: 600;
  margin: 30px 0 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--border-color);
}

.article-content h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 24px 0 12px;
}

.article-content ul {
  margin-bottom: 20px;
  padding-left: 24px;
}

.article-content li {
  list-style: disc;
  margin-bottom: 8px;
}

.article-info-box {
  background: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 20px;
  margin: 24px 0;
}

.info-box-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.info-box-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.info-box-item {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
}

.info-box-item span:first-child {
  color: var(--text-secondary);
}

.info-box-item span:last-child {
  font-weight: 500;
}

.contact-box {
  background: var(--primary-color);
  color: white;
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  margin-top: 30px;
}

.contact-box-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.contact-box-desc {
  font-size: 14px;
  opacity: 0.9;
  margin-bottom: 16px;
}

.contact-btn {
  padding: 12px 32px;
  background: white;
  color: var(--primary-color);
  border: none;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.2s;
}

.contact-btn:hover {
  opacity: 0.9;
}

/* ===== 404 Page ===== */
.error-page {
  min-height: calc(100vh - var(--header-height) - 300px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 24px;
}

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

.error-code {
  font-size: 120px;
  font-weight: 700;
  color: var(--primary-color);
  line-height: 1;
  margin-bottom: 20px;
  opacity: 0.8;
}

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

.error-desc {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 30px;
}

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

.error-btn {
  padding: 12px 28px;
  border-radius: var(--radius);
  font-size: 15px;
  cursor: pointer;
  transition: all 0.2s;
}

.error-btn.primary {
  background: var(--primary-color);
  color: white;
  border: none;
}

.error-btn.primary:hover {
  opacity: 0.9;
}

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

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

/* ===== Related Articles ===== */
.related-section {
  padding: 40px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
  border-top: 1px solid var(--border-color);
}

.related-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 20px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.related-item {
  display: flex;
  gap: 12px;
  padding: 12px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  transition: all 0.2s;
}

.related-item:hover {
  border-color: var(--accent-color);
  box-shadow: var(--shadow);
}

.related-thumb {
  width: 80px;
  height: 60px;
  background: linear-gradient(135deg, #F5E6D3 0%, #E8DDD4 100%);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  flex-shrink: 0;
}

.related-info {
  flex: 1;
  min-width: 0;
}

.related-item-title {
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.related-item-meta {
  font-size: 12px;
  color: var(--text-secondary);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .categories-grid {
    grid-template-columns: repeat(4, 1fr);
  }

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

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

@media (max-width: 768px) {
  .header-inner {
    flex-wrap: wrap;
    height: auto;
    padding: 12px 16px;
    gap: 12px;
  }

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

  .header-search {
    display: none;
  }

  .hero {
    padding: 40px 16px;
  }

  .hero-title {
    font-size: 26px;
  }

  .hero-search {
    flex-direction: column;
  }

  .hero-search select {
    border-left: none;
    border-top: 1px solid var(--border-color);
  }

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

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

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

  .footer-top {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .list-item {
    flex-direction: column;
  }

  .list-item-image {
    width: 100%;
    height: 180px;
  }

  .list-item-top {
    flex-direction: column;
    gap: 8px;
  }

  .list-item-price {
    font-size: 18px;
  }

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

  .filter-group {
    flex-wrap: wrap;
  }

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

  .info-box-list {
    grid-template-columns: 1fr;
  }

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

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

@media (max-width: 480px) {
  .categories-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .pagination {
    flex-wrap: wrap;
  }
}