/* 全局样式 */
:root {
  --primary-color: #2563eb;
  --secondary-color: #10b981;
  --background: #ffffff;
  --background-secondary: #f9fafb;
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --border: #e5e7eb;
  --error: #ef4444;
  --success: #10b981;
  --warning: #f59e0b;
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--background);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 导航栏 */
.navbar {
  background-color: var(--background);
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand a {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary-color);
  text-decoration: none;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-menu a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.3s;
}

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

.nav-auth {
  display: flex;
  gap: 1rem;
  align-items: center;
}

/* 按钮 */
.btn {
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  background-color: var(--background);
  color: var(--text-primary);
  border-radius: 0.375rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: all 0.3s;
  font-size: 0.875rem;
}

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

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

.btn-primary:hover {
  background-color: #1d4ed8;
}

.btn-danger {
  background-color: var(--error);
  color: white;
  border-color: var(--error);
}

.btn-danger:hover {
  background-color: #dc2626;
}

.btn-block {
  width: 100%;
  text-align: center;
}

/* 主内容区 */
.main-content {
  flex: 1;
  padding: 2rem 0;
}

/* 加载和错误状态 */
.loading {
  text-align: center;
  padding: 2rem;
  color: var(--text-secondary);
}

.error {
  background-color: #fee2e2;
  color: var(--error);
  padding: 1rem;
  border-radius: 0.375rem;
  margin: 1rem 0;
}

.success {
  background-color: #d1fae5;
  color: var(--success);
  padding: 1rem;
  border-radius: 0.375rem;
  margin: 1rem 0;
}

/* 页脚 */
.footer {
  background-color: var(--background-secondary);
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  margin-top: auto;
  text-align: center;
  color: var(--text-secondary);
}

.footer p {
  margin: 0.5rem 0;
}

.footer a {
  color: var(--text-secondary);
  text-decoration: none;
}

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

/* 响应式断点 */
@media (max-width: 640px) {
  .nav-menu {
    display: none;
  }
  
  .container {
    padding: 0 15px;
  }
}

@media (min-width: 641px) and (max-width: 1024px) {
  .nav-menu {
    gap: 1rem;
  }
}

@media (min-width: 1025px) {
  /* 桌面设备样式 */
}


/* 筛选区域 */
.filter-section {
  margin: 2rem 0;
  padding: 1.5rem;
  background-color: var(--background-secondary);
  border-radius: 0.5rem;
}

.filter-section h2 {
  margin-bottom: 1rem;
  font-size: 1.25rem;
}

.region-filters,
.category-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.filter-btn {
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  background-color: var(--background);
  border-radius: 0.375rem;
  cursor: pointer;
  transition: all 0.3s;
}

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

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

/* 新闻网格 */
.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.news-card {
  background-color: var(--background);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
  cursor: pointer;
}

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

.news-card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  background-color: var(--background-secondary);
}

.news-card-content {
  padding: 1rem;
}

.news-card-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.news-card-description {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: 0.75rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* 新闻详情 */
.news-detail {
  max-width: 800px;
  margin: 0 auto;
}

.news-header h1 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.news-meta {
  display: flex;
  gap: 1rem;
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.news-image img {
  width: 100%;
  border-radius: 0.5rem;
  margin-bottom: 1.5rem;
}

.news-content {
  font-size: 1.125rem;
  line-height: 1.8;
  margin-bottom: 2rem;
}

.news-actions {
  display: flex;
  gap: 1rem;
  margin: 2rem 0;
}

.back-link {
  margin: 2rem 0;
}

/* 分页 */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  margin: 2rem 0;
}

/* 博客网格 */
.blog-grid {
  display: grid;
  gap: 1.5rem;
  margin: 2rem 0;
}

.blog-card {
  background-color: var(--background);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 1.5rem;
  transition: transform 0.3s, box-shadow 0.3s;
  cursor: pointer;
}

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

.blog-card-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.blog-card-meta {
  display: flex;
  gap: 1rem;
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

.blog-card-content {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.blog-card-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.tag {
  padding: 0.25rem 0.75rem;
  background-color: var(--background-secondary);
  border-radius: 1rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* 博客详情 */
.post-detail {
  max-width: 800px;
  margin: 0 auto;
}

.post-header h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.post-meta {
  display: flex;
  gap: 1rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.post-tags {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.post-content {
  font-size: 1.125rem;
  line-height: 1.8;
  margin-bottom: 2rem;
}

.post-actions {
  display: flex;
  gap: 1rem;
  margin: 2rem 0;
}

/* 搜索框 */
.search-box {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.search-box input {
  flex: 1;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: 0.375rem;
  font-size: 1rem;
}

/* 表单 */
.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 0.375rem;
  font-size: 1rem;
  font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-actions {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
}

/* 认证表单 */
.auth-container {
  max-width: 400px;
  margin: 2rem auto;
  background-color: var(--background);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 2rem;
  box-shadow: var(--shadow-lg);
}

.auth-tabs {
  display: flex;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border);
}

.tab-btn {
  flex: 1;
  padding: 1rem;
  border: none;
  background: none;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 1rem;
  transition: all 0.3s;
}

.tab-btn.active {
  color: var(--primary-color);
  border-bottom: 2px solid var(--primary-color);
}

.auth-form {
  display: none;
}

.auth-form.active {
  display: block;
}

.auth-form h2 {
  margin-bottom: 1.5rem;
  text-align: center;
}

/* 编辑器 */
.editor-container {
  margin: 2rem 0;
}

.editor-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.editor-actions {
  display: flex;
  gap: 0.5rem;
}

.editor-sidebar {
  width: 250px;
  float: left;
  margin-right: 2rem;
  padding: 1rem;
  background-color: var(--background-secondary);
  border-radius: 0.5rem;
}

.editor-main {
  overflow: hidden;
}

.doc-title-input {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 0.375rem;
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.editor-toolbar {
  display: flex;
  gap: 0.5rem;
  padding: 0.5rem;
  background-color: var(--background-secondary);
  border: 1px solid var(--border);
  border-bottom: none;
  border-radius: 0.375rem 0.375rem 0 0;
}

.editor-toolbar button {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  background-color: var(--background);
  border-radius: 0.25rem;
  cursor: pointer;
}

.editor-toolbar button:hover {
  background-color: var(--background-secondary);
}

.editor-content {
  min-height: 400px;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: 0 0 0.375rem 0.375rem;
  font-size: 1rem;
  line-height: 1.6;
}

.editor-content:focus {
  outline: none;
  border-color: var(--primary-color);
}

.editor-content[placeholder]:empty:before {
  content: attr(placeholder);
  color: var(--text-secondary);
}

.editor-status {
  display: flex;
  justify-content: space-between;
  margin-top: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* 游戏 */
.game-container {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.game-description {
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.game-stats {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin: 2rem 0;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-label {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.stat-value {
  font-size: 2rem;
  font-weight: bold;
  color: var(--primary-color);
}

.game-board {
  background-color: var(--background-secondary);
  border-radius: 0.5rem;
  padding: 2rem;
  margin: 2rem 0;
}

.game-history {
  min-height: 200px;
  margin-bottom: 1.5rem;
  text-align: left;
}

.history-item {
  padding: 0.75rem;
  margin-bottom: 0.5rem;
  background-color: var(--background);
  border-radius: 0.375rem;
  border-left: 3px solid var(--primary-color);
}

.history-item.ai {
  border-left-color: var(--secondary-color);
}

.game-input {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.game-input input {
  flex: 1;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 0.375rem;
  font-size: 1.25rem;
  text-align: center;
}

.game-message {
  padding: 1rem;
  border-radius: 0.375rem;
  margin-top: 1rem;
}

.game-message.success {
  background-color: #d1fae5;
  color: var(--success);
}

.game-message.error {
  background-color: #fee2e2;
  color: var(--error);
}

.game-controls {
  margin: 2rem 0;
}

.game-rules {
  text-align: left;
  margin-top: 3rem;
  padding: 1.5rem;
  background-color: var(--background-secondary);
  border-radius: 0.5rem;
}

.game-rules h3 {
  margin-bottom: 1rem;
}

.game-rules ul {
  list-style-position: inside;
  color: var(--text-secondary);
}

.game-rules li {
  margin-bottom: 0.5rem;
}

/* 经济数据表格 */
.economy-header {
  text-align: center;
  margin-bottom: 2rem;
}

.economy-table-container {
  overflow-x: auto;
  margin: 2rem 0;
}

.economy-table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--background);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
}

.economy-table th,
.economy-table td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.economy-table th {
  background-color: var(--background-secondary);
  font-weight: 600;
  cursor: pointer;
  user-select: none;
}

.economy-table th:hover {
  background-color: var(--border);
}

.economy-table tr:hover {
  background-color: var(--background-secondary);
}

.data-source {
  margin: 2rem 0;
  padding: 1.5rem;
  background-color: var(--background-secondary);
  border-radius: 0.5rem;
}

.data-source ul {
  list-style-position: inside;
  color: var(--text-secondary);
}

/* 响应式调整 */
@media (max-width: 640px) {
  .news-grid {
    grid-template-columns: 1fr;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .editor-sidebar {
    width: 100%;
    float: none;
    margin-right: 0;
    margin-bottom: 1rem;
  }
  
  .game-stats {
    gap: 1rem;
  }
  
  .economy-table {
    font-size: 0.875rem;
  }
  
  .economy-table th,
  .economy-table td {
    padding: 0.5rem;
  }
}