/* 全局样式 */
:root {
  --primary: #3b82f6;
  --primary-dark: #2563eb;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --border: #e2e8f0;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --border: #334155;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-secondary);
  color: var(--text-primary);
  line-height: 1.6;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 头部 */
.header {
  background: var(--bg-primary);
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  font-size: 28px;
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
}

.search-box {
  flex: 1;
  max-width: 500px;
  display: flex;
  gap: 8px;
}

.search-box input {
  flex: 1;
  padding: 10px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 14px;
}

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

.search-box button {
  padding: 10px 20px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 500;
}

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

.header-actions {
  display: flex;
  gap: 10px;
}

.icon-btn {
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  background: var(--bg-secondary);
  border-radius: 8px;
  cursor: pointer;
  font-size: 18px;
}

.icon-light {
  display: none;
}

[data-theme="dark"] .icon-dark {
  display: none;
}

[data-theme="dark"] .icon-light {
  display: inline;
}

/* 主内容 */
.main-content {
  padding: 24px 0;
}

/* 市场概览 */
.market-overview {
  margin-bottom: 24px;
}

.market-overview h2 {
  font-size: 18px;
  margin-bottom: 16px;
}

.index-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.index-card {
  background: var(--bg-primary);
  border-radius: 12px;
  padding: 20px;
  box-shadow: var(--shadow);
}

.index-card .name {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.index-card .value {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 4px;
}

.index-card .change {
  font-size: 14px;
  font-weight: 500;
}

.index-card .change.up {
  color: var(--danger);
}

.index-card .change.down {
  color: var(--success);
}

/* 两栏布局 */
.two-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

@media (max-width: 900px) {
  .two-columns {
    grid-template-columns: 1fr;
  }
}

/* 区块通用样式 */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: 18px;
}

/* 自选股 */
.watchlist-section {
  background: var(--bg-primary);
  border-radius: 12px;
  padding: 20px;
  box-shadow: var(--shadow);
}

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

.stock-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px;
  background: var(--bg-secondary);
  border-radius: 8px;
  cursor: pointer;
  transition: transform 0.2s;
}

.stock-item:hover {
  transform: translateX(4px);
}

.stock-info .code {
  font-weight: 600;
  margin-bottom: 4px;
}

.stock-info .name {
  font-size: 12px;
  color: var(--text-secondary);
}

.stock-price {
  text-align: right;
}

.stock-price .price {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 4px;
}

.stock-price .change {
  font-size: 12px;
}

.stock-price .change.up {
  color: var(--danger);
}

.stock-price .change.down {
  color: var(--success);
}

/* 新闻资讯 */
.news-section {
  background: var(--bg-primary);
  border-radius: 12px;
  padding: 20px;
  box-shadow: var(--shadow);
}

.tabs {
  display: flex;
  gap: 8px;
}

.tab {
  padding: 6px 12px;
  border: 1px solid var(--border);
  background: transparent;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  color: var(--text-secondary);
}

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

.news-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-height: 500px;
  overflow-y: auto;
}

.news-item {
  padding: 12px;
  background: var(--bg-secondary);
  border-radius: 8px;
  cursor: pointer;
}

.news-item:hover {
  background: var(--bg-tertiary);
}

.news-item .title {
  font-weight: 500;
  margin-bottom: 6px;
  line-height: 1.4;
}

.news-item .meta {
  font-size: 12px;
  color: var(--text-secondary);
  display: flex;
  gap: 12px;
}

/* 板块行情 */
.sector-section {
  background: var(--bg-primary);
  border-radius: 12px;
  padding: 20px;
  box-shadow: var(--shadow);
}

.sector-section h2 {
  font-size: 18px;
  margin-bottom: 16px;
}

.sector-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px;
}

.sector-item {
  padding: 16px;
  background: var(--bg-secondary);
  border-radius: 8px;
  text-align: center;
  cursor: pointer;
}

.sector-item:hover {
  background: var(--bg-tertiary);
}

.sector-item .name {
  font-size: 14px;
  margin-bottom: 8px;
}

.sector-item .change {
  font-size: 18px;
  font-weight: 600;
}

.sector-item .change.up {
  color: var(--danger);
}

.sector-item .change.down {
  color: var(--success);
}

/* 按钮 */
.btn-primary {
  padding: 8px 16px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 500;
}

.btn-secondary {
  padding: 8px 16px;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
}

/* 弹窗 */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

.modal.active {
  display: flex;
}

.modal-content {
  background: var(--bg-primary);
  border-radius: 12px;
  width: 90%;
  max-width: 500px;
  max-height: 80vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.modal-content.large {
  max-width: 800px;
}

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

.modal-header h3 {
  font-size: 18px;
}

.modal-close {
  width: 32px;
  height: 32px;
  border: none;
  background: var(--bg-secondary);
  border-radius: 6px;
  cursor: pointer;
  font-size: 20px;
}

.modal-body {
  padding: 20px;
  flex: 1;
  overflow-y: auto;
}

.modal-body input {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 14px;
}

.modal-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}

.search-results {
  margin-top: 12px;
  max-height: 200px;
  overflow-y: auto;
}

.search-result-item {
  padding: 10px;
  background: var(--bg-secondary);
  border-radius: 6px;
  margin-bottom: 8px;
  cursor: pointer;
}

.search-result-item:hover {
  background: var(--bg-tertiary);
}

/* 底部 */
.footer {
  text-align: center;
  padding: 20px;
  color: var(--text-secondary);
  font-size: 12px;
}

/* 加载状态 */
.loading {
  text-align: center;
  padding: 40px;
  color: var(--text-secondary);
}

/* 空状态 */
.empty {
  text-align: center;
  padding: 40px;
  color: var(--text-secondary);
}