/* 可持续时尚 - 数据表格风格样式表 */
/* 主色调: #607d8b */

/* ===== CSS 变量 ===== */
:root {
  --primary-color: #607d8b;
  --primary-dark: #455a64;
  --primary-light: #90a4ae;
  --accent-color: #4caf50;
  --text-primary: #212121;
  --text-secondary: #757575;
  --text-muted: #9e9e9e;
  --bg-primary: #ffffff;
  --bg-secondary: #f5f5f5;
  --bg-table-header: #eceff1;
  --border-color: #e0e0e0;
  --border-light: #eeeeee;
  --success-color: #4caf50;
  --warning-color: #ff9800;
  --error-color: #f44336;
  --link-color: #607d8b;
  --link-hover: #455a64;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 2px 8px rgba(0,0,0,0.1);
  --radius-sm: 4px;
  --radius-md: 8px;
  --max-width: 1200px;
  --header-height: 64px;
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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-color: var(--bg-primary);
}

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

a:hover {
  color: var(--link-hover);
  text-decoration: underline;
}

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

/* ===== 布局容器 ===== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 16px;
}

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

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

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

.logo-icon {
  width: 40px;
  height: 40px;
  background-color: var(--primary-color);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: bold;
  font-size: 18px;
}

.logo-text {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
}

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

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

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

.nav a:hover,
.nav a.active {
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
  text-decoration: none;
}

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

.search-box input {
  width: 200px;
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 14px;
  outline: none;
}

.search-box input:focus {
  border-color: var(--primary-color);
}

.search-box button {
  padding: 8px 16px;
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 14px;
}

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

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

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

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

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

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

/* ===== Hero 区域 ===== */
.hero {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: white;
  padding: 48px 0;
}

.hero h1 {
  font-size: 32px;
  font-weight: 600;
  margin-bottom: 12px;
}

.hero p {
  font-size: 16px;
  opacity: 0.9;
  max-width: 600px;
}

/* ===== 主内容区 ===== */
.main {
  padding: 32px 0;
  min-height: calc(100vh - var(--header-height) - 200px);
}

/* ===== 卡片组件 ===== */
.card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  margin-bottom: 24px;
}

.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

.card-body {
  padding: 20px;
}

.card-footer {
  padding: 12px 20px;
  border-top: 1px solid var(--border-light);
  background-color: var(--bg-secondary);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
}

/* ===== 数据表格 ===== */
.data-table-wrapper {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.data-table th,
.data-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border-light);
}

.data-table th {
  background-color: var(--bg-table-header);
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
}

.data-table th.sortable {
  cursor: pointer;
}

.data-table th.sortable::after {
  content: "↕";
  margin-left: 6px;
  color: var(--text-muted);
  font-size: 12px;
}

.data-table tbody tr:hover {
  background-color: var(--bg-secondary);
}

.data-table td {
  color: var(--text-secondary);
}

.data-table .number {
  text-align: right;
  font-family: "SF Mono", Monaco, monospace;
}

.data-table .tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}

.tag-success {
  background-color: #e8f5e9;
  color: var(--success-color);
}

.tag-warning {
  background-color: #fff3e0;
  color: var(--warning-color);
}

.tag-info {
  background-color: #e3f2fd;
  color: #1976d2;
}

/* ===== 网格布局 ===== */
.grid {
  display: grid;
  gap: 24px;
}

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

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* ===== 分类卡片 ===== */
.category-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
  transition: box-shadow 0.2s;
}

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

.category-icon {
  width: 56px;
  height: 56px;
  background-color: var(--bg-secondary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 24px;
}

.category-card h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.category-card p {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.category-card .count {
  font-size: 12px;
  color: var(--text-muted);
}

/* ===== 文章列表 ===== */
.article-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.article-item {
  display: flex;
  gap: 16px;
  padding: 16px;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}

.article-thumb {
  width: 120px;
  height: 80px;
  background-color: 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;
}

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

.article-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
  line-height: 1.4;
}

.article-title a {
  color: inherit;
}

.article-title a:hover {
  color: var(--primary-color);
  text-decoration: none;
}

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

.article-summary {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 8px;
  line-height: 1.5;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

/* ===== 文章详情 ===== */
.article-header {
  margin-bottom: 24px;
}

.article-header h1 {
  font-size: 28px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
  line-height: 1.4;
}

.article-info {
  display: flex;
  gap: 20px;
  font-size: 13px;
  color: var(--text-secondary);
}

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

.article-body {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-primary);
}

.article-body h2 {
  font-size: 20px;
  font-weight: 600;
  margin: 32px 0 16px;
  color: var(--text-primary);
}

.article-body h3 {
  font-size: 17px;
  font-weight: 600;
  margin: 24px 0 12px;
  color: var(--text-primary);
}

.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 table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 14px;
}

.article-body th,
.article-body td {
  padding: 10px 12px;
  border: 1px solid var(--border-color);
  text-align: left;
}

.article-body th {
  background-color: var(--bg-table-header);
  font-weight: 600;
}

/* ===== 侧边栏 ===== */
.sidebar-section {
  margin-bottom: 24px;
}

.sidebar-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-light);
}

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

.sidebar-list li {
  padding: 8px 0;
  border-bottom: 1px solid var(--border-light);
}

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

.sidebar-list a {
  color: var(--text-secondary);
  font-size: 13px;
  display: flex;
  justify-content: space-between;
}

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

.sidebar-list .count {
  color: var(--text-muted);
  font-size: 12px;
}

/* ===== 统计卡片 ===== */
.stat-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
}

.stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 4px;
}

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

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

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

.pagination a:hover {
  background-color: var(--bg-secondary);
  border-color: var(--primary-color);
  color: var(--primary-color);
  text-decoration: none;
}

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

.pagination .disabled {
  color: var(--text-muted);
  cursor: not-allowed;
}

/* ===== 三栏内容区 ===== */
.content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 24px;
  margin: 32px 0;
}

.content-grid .column h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-light);
}

.content-grid ul {
  list-style: none;
}

.content-grid li {
  padding: 8px 0;
  border-bottom: 1px solid var(--border-light);
}

.content-grid li:last-child {
  border-bottom: none;
}

.content-grid a {
  font-size: 13px;
  color: var(--text-secondary);
}

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

/* ===== 404 页面 ===== */
.error-page {
  text-align: center;
  padding: 80px 20px;
}

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

.error-title {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
}

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

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

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: none;
  text-decoration: none;
}

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

.btn-primary:hover {
  background-color: var(--primary-dark);
  color: white;
  text-decoration: none;
}

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

.btn-outline:hover {
  background-color: var(--primary-color);
  color: white;
  text-decoration: none;
}

/* ===== 页脚 ===== */
.footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 40px 0 20px;
  margin-top: 48px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 32px;
}

.footer-brand p {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 12px;
  line-height: 1.6;
}

.footer-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
}

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

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  font-size: 13px;
  color: var(--text-secondary);
}

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

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 20px;
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
}

/* ===== 筛选器 ===== */
.filter-bar {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

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

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

.filter-group select {
  padding: 6px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 13px;
  background-color: white;
}

/* ===== 响应式设计 ===== */
@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 768px) {
  .nav {
    display: none;
  }

  .search-box input {
    width: 140px;
  }

  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

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

  .hero h1 {
    font-size: 24px;
  }

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

  .article-thumb {
    width: 100%;
    height: 160px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .data-table-wrapper {
    margin: 0 -16px;
    padding: 0 16px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 12px;
  }

  .hero {
    padding: 32px 0;
  }

  .hero h1 {
    font-size: 20px;
  }

  .card-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

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