/* 可持续时尚 - 样式表 */
/* 数据表格风格 + 环保绿色主题 */

/* CSS 变量 */
:root {
  --accent-color: #2e7d32;
  --accent-light: #4caf50;
  --accent-dark: #1b5e20;
  --bg-primary: #fafafa;
  --bg-secondary: #f5f5f5;
  --bg-card: #ffffff;
  --text-primary: #212121;
  --text-secondary: #616161;
  --text-muted: #9e9e9e;
  --border-color: #e0e0e0;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-hover: 0 4px 16px rgba(0,0,0,0.12);
  --radius: 8px;
  --radius-sm: 4px;
  --max-width: 1200px;
  --header-height: 64px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-primary);
}

a {
  color: var(--accent-color);
  text-decoration: none;
}

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

/* 容器 */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

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

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

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--accent-color);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
}

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

.nav a {
  color: var(--text-secondary);
  font-weight: 500;
  padding: 8px 0;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}

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

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

.search-box input {
  border: none;
  background: none;
  outline: none;
  font-size: 14px;
  width: 180px;
}

/* 面包屑 */
.breadcrumb {
  background: var(--bg-secondary);
  padding: 12px 0;
  font-size: 13px;
  color: var(--text-secondary);
}

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

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

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

/* Hero 区域 */
.hero {
  background: linear-gradient(135deg, var(--accent-dark) 0%, var(--accent-color) 100%);
  color: #fff;
  padding: 64px 0;
}

.hero-content {
  max-width: 600px;
}

.hero h1 {
  font-size: 40px;
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.2;
}

.hero p {
  font-size: 18px;
  opacity: 0.9;
  margin-bottom: 32px;
}

.hero-stats {
  display: flex;
  gap: 48px;
}

.hero-stat {
  text-align: center;
}

.hero-stat .number {
  font-size: 32px;
  font-weight: 700;
  display: block;
}

.hero-stat .label {
  font-size: 13px;
  opacity: 0.8;
}

/* 区块标题 */
.section-title {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.section-title::before {
  content: "";
  width: 4px;
  height: 24px;
  background: var(--accent-color);
  border-radius: 2px;
}

/* 内容区块 */
.section {
  padding: 48px 0;
}

.section-alt {
  background: var(--bg-secondary);
}

/* 分类卡片 */
.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.category-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  transition: all 0.2s;
  border: 1px solid var(--border-color);
}

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

.category-card .icon {
  width: 48px;
  height: 48px;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 16px;
}

.category-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.category-card p {
  color: var(--text-secondary);
  font-size: 13px;
  margin-bottom: 16px;
}

.category-card .meta {
  display: flex;
  gap: 16px;
  font-size: 12px;
  color: var(--text-muted);
}

/* 数据表格 */
.data-table {
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.table-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-secondary);
}

.table-title {
  font-weight: 600;
}

.table-actions {
  display: flex;
  gap: 8px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
}

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

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

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

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

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th, td {
  padding: 14px 24px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

th {
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-secondary);
  white-space: nowrap;
}

tr:hover td {
  background: var(--bg-secondary);
}

td .tag {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 500;
}

.tag-green {
  background: #e8f5e9;
  color: var(--accent-dark);
}

.tag-blue {
  background: #e3f2fd;
  color: #1565c0;
}

.tag-orange {
  background: #fff3e0;
  color: #e65100;
}

/* 内容列表 */
.content-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

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

.content-item:hover {
  box-shadow: var(--shadow);
}

.content-thumb {
  width: 160px;
  height: 100px;
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 12px;
}

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

.content-info h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.content-info p {
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.5;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.content-meta {
  display: flex;
  gap: 16px;
  font-size: 12px;
  color: var(--text-muted);
}

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

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

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

.article-image {
  width: 100%;
  height: 160px;
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 12px;
}

.article-body {
  padding: 20px;
}

.article-body .category {
  font-size: 11px;
  color: var(--accent-color);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.article-body h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.4;
}

.article-body p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-meta {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-muted);
}

/* 三栏布局 */
.three-col {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.col-section h4 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--accent-color);
}

.col-list {
  list-style: none;
}

.col-list li {
  padding: 10px 0;
  border-bottom: 1px solid var(--border-color);
}

.col-list li:last-child {
  border-bottom: none;
}

.col-list a {
  color: var(--text-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.col-list .num {
  font-size: 11px;
  color: var(--text-muted);
  background: var(--bg-secondary);
  padding: 2px 8px;
  border-radius: 10px;
}

/* 分页 */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 32px;
}

.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: 13px;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-secondary);
}

.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 */
.article-header {
  background: var(--bg-secondary);
  padding: 48px 0;
}

.article-title {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.3;
}

.article-subtitle {
  display: flex;
  gap: 24px;
  font-size: 13px;
  color: var(--text-secondary);
}

.article-body-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 48px 24px;
}

.article-body-content p {
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.article-body-content h2 {
  font-size: 24px;
  font-weight: 600;
  margin: 40px 0 20px;
}

.article-body-content h3 {
  font-size: 20px;
  font-weight: 600;
  margin: 32px 0 16px;
}

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

.article-body-content li {
  margin-bottom: 8px;
  line-height: 1.6;
}

/* 相关推荐 */
.related-section {
  background: var(--bg-secondary);
  padding: 32px 0;
}

/* 404 页面 */
.error-page {
  min-height: calc(100vh - var(--header-height) - 200px);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 48px 24px;
}

.error-code {
  font-size: 120px;
  font-weight: 700;
  color: var(--accent-color);
  line-height: 1;
  margin-bottom: 16px;
  opacity: 0.3;
}

.error-title {
  font-size: 28px;
  font-weight: 600;
  margin-bottom: 16px;
}

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

/* 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: 48px;
  margin-bottom: 32px;
}

.footer-brand .logo {
  color: #fff;
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 13px;
  color: rgba(255,255,255,0.7);
  line-height: 1.6;
}

.footer-links h4 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 8px;
}

.footer-links a {
  color: rgba(255,255,255,0.7);
  font-size: 13px;
}

.footer-links a:hover {
  color: #fff;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: rgba(255,255,255,0.5);
}

/* 响应式 */
@media (max-width: 1024px) {
  .category-grid,
  .article-grid,
  .three-col {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .nav {
    order: 3;
    width: 100%;
    gap: 16px;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .search-box {
    order: 2;
  }

  .hero {
    padding: 40px 0;
  }

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

  .hero-stats {
    gap: 24px;
  }

  .hero-stat .number {
    font-size: 24px;
  }

  .category-grid,
  .article-grid,
  .three-col {
    grid-template-columns: 1fr;
  }

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

  .content-thumb {
    width: 100%;
    height: 140px;
  }

  .table-responsive {
    overflow-x: auto;
  }

  table {
    min-width: 600px;
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .section {
    padding: 32px 0;
  }

  .section-title {
    font-size: 20px;
  }

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