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

:root {
  --primary: #1890ff;
  --primary-dark: #096dd9;
  --success: #52c41a;
  --danger: #ff4d4f;
  --warning: #faad14;
  --bg-dark: #0a0e27;
  --bg-card: #131842;
  --bg-panel: #1a1f4e;
  --text-primary: #e8e8f0;
  --text-secondary: #a0a5c0;
  --border: #2a2f5e;
  --shadow: 0 4px 24px rgba(0,0,0,0.3);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
}

/* 导航栏 */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
  padding: 0 32px;
  height: 60px;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
}

.nav-brand {
  font-size: 20px;
  font-weight: 700;
  background: linear-gradient(135deg, #1890ff, #36cfc9);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links { display: flex; gap: 4px; }

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  padding: 8px 18px;
  border-radius: 8px;
  font-size: 14px;
  transition: all 0.3s;
}

.nav-links a:hover, .nav-links a.active {
  background: rgba(24,144,255,0.15);
  color: var(--primary);
}

/* 容器 */
.container { max-width: 1400px; margin: 0 auto; padding: 24px 32px; }

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.page-header h1 { font-size: 28px; font-weight: 700; }

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

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

/* 统计卡片网格 */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
}

.stat-card.sh::before { background: linear-gradient(90deg, #ff4d4f, #ff7875); }
.stat-card.sz::before { background: linear-gradient(90deg, #52c41a, #73d13d); }
.stat-card.cy::before { background: linear-gradient(90deg, #1890ff, #40a9ff); }
.stat-card.hs300::before { background: linear-gradient(90deg, #722ed1, #9254de); }

.stat-label { font-size: 13px; color: var(--text-secondary); margin-bottom: 8px; }
.stat-value { font-size: 28px; font-weight: 700; }
.stat-change { font-size: 13px; margin-top: 4px; }
.stat-change.up { color: #ff4d4f; }
.stat-change.down { color: #52c41a; }

/* 面板 */
.panel, .chart-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 16px;
}

.chart-panel { padding: 20px 20px 10px; }

.panel-title, .chart-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.bottom-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.3s;
  font-weight: 500;
}

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #cf1322; }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text-primary); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-block { display: block; width: 100%; justify-content: center; margin-bottom: 8px; }
.btn-search { background: var(--primary); color: #fff; padding: 10px 16px; }

/* 表单 */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; color: var(--text-secondary); margin-bottom: 6px; }
.form-group small { display: block; font-size: 11px; color: var(--text-secondary); margin-top: 4px; }

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-dark);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 14px;
  transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.form-group textarea { resize: vertical; min-height: 80px; }

.form-actions { display: flex; gap: 12px; margin-top: 24px; }

/* 徽章 */
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}

.badge-ai {
  background: rgba(24,144,255,0.15);
  color: #40a9ff;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

/* 模态框 */
.modal {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.6);
  z-index: 200;
  align-items: center;
  justify-content: center;
}

.modal.show { display: flex; }

.modal-content {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  width: 90%;
  max-width: 560px;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: var(--shadow);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}

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

.close {
  font-size: 24px;
  cursor: pointer;
  color: var(--text-secondary);
  transition: color 0.3s;
}

.close:hover { color: var(--text-primary); }

.modal-body { padding: 24px; }

/* 新闻 */
.news-filters {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}

.filter-tags { display: flex; gap: 8px; }

.filter-tag {
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 13px;
  cursor: pointer;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: all 0.3s;
}

.filter-tag:hover, .filter-tag.active {
  background: rgba(24,144,255,0.15);
  border-color: var(--primary);
  color: var(--primary);
}

.search-box { display: flex; gap: 8px; }
.search-box input {
  padding: 8px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 14px;
  width: 240px;
}

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

.news-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 20px;
  margin-bottom: 10px;
  transition: all 0.3s;
  cursor: pointer;
}

.news-item:hover { border-color: var(--primary); transform: translateX(4px); }

.news-source {
  font-size: 11px;
  color: var(--primary);
  margin-bottom: 4px;
  font-weight: 500;
}

.news-title { font-size: 15px; font-weight: 500; margin-bottom: 6px; line-height: 1.5; }
.news-meta { font-size: 12px; color: var(--text-secondary); }

.news-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 24px;
}

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

/* 券商列表 */
.broker-intro {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 20px;
  margin-bottom: 20px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}

.broker-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 12px;
  transition: all 0.3s;
}

.broker-item:hover { border-color: var(--primary); }

.broker-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.broker-name { font-size: 16px; font-weight: 600; }

.broker-type {
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 12px;
  background: rgba(24,144,255,0.1);
  color: var(--primary);
  font-weight: 500;
}

.broker-info { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; font-size: 13px; }

.broker-info .info-label { color: var(--text-secondary); }
.broker-info .info-value { color: var(--text-primary); word-break: break-all; }

.broker-actions { display: flex; gap: 8px; margin-top: 12px; }

/* 交易页面 */
.trading-layout {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 20px;
}

.trading-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  height: fit-content;
}

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

.risk-slider input[type="range"] {
  flex: 1;
  -webkit-appearance: none;
  height: 6px;
  border-radius: 3px;
  background: linear-gradient(90deg, #52c41a, #faad14, #ff4d4f);
  outline: none;
}

.risk-slider input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #fff;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0,0,0,0.3);
}

.risk-label { font-size: 14px; font-weight: 600; min-width: 40px; }

.trade-log {
  max-height: 300px;
  overflow-y: auto;
  font-size: 13px;
}

.log-item {
  padding: 8px 0;
  border-bottom: 1px solid rgba(42,47,94,0.5);
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 12px;
}

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

.log-info { color: var(--text-secondary); }
.log-buy { color: #ff4d4f; }
.log-sell { color: #52c41a; }
.log-signal { color: #faad14; }

/* 热门板块 */
.sector-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid rgba(42,47,94,0.5);
}

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

.sector-name { font-size: 14px; font-weight: 500; }
.sector-change { font-size: 14px; font-weight: 600; }
.sector-change.up { color: #ff4d4f; }
.sector-change.down { color: #52c41a; }

/* 加载 */
.loading-spinner {
  text-align: center;
  padding: 40px;
  color: var(--text-secondary);
  font-size: 14px;
}

/* 首页热门板块和AI信号样式 */
.sector-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
}
.sector-item:last-child { border-bottom: none; }
.sector-name { font-size: 13px; }
.sector-change { font-size: 12px; font-weight: 600; }
.sector-change.up { color: var(--danger); }
.sector-change.down { color: var(--success); }

.signal-item {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}
.signal-item:last-child { border-bottom: none; }
.signal-stock { font-size: 13px; font-weight: 500; margin-bottom: 4px; }
.signal-action { display: flex; align-items: center; gap: 8px; margin-bottom: 4px; }
.signal-confidence { font-size: 11px; color: var(--text-secondary); }
.signal-reason { font-size: 11px; color: var(--text-secondary); line-height: 1.4; }

/* AI分析详细样式增强 */
.confidence-row { display: flex; justify-content: space-between; font-size: 12px; margin-bottom: 4px; }
.analysis-text { font-size: 13px; line-height: 1.6; color: var(--text-secondary); margin-top: 8px; }

/* ───────── 板块选股页面 ───────── */

/* 板块卡片网格 */
.sector-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

.sector-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  cursor: pointer;
  transition: all 0.25s;
}

.sector-card:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(24,144,255,0.15);
}

.sc-name { font-size: 15px; font-weight: 600; margin-bottom: 6px; }

.sc-change { font-size: 20px; font-weight: 700; margin-bottom: 4px; }

.sc-change.up { color: #ff4d4f; }
.sc-change.down { color: #52c41a; }

.sc-count { font-size: 12px; color: var(--text-secondary); }

/* 股票面板 */
.stock-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}

.panel-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

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

/* 股票表格 */
.stock-table-wrap { overflow-x: auto; }

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

.stock-table th {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 2px solid var(--border);
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 13px;
  white-space: nowrap;
}

.stock-table td {
  padding: 10px 12px;
  border-bottom: 1px solid rgba(42,47,94,0.5);
  white-space: nowrap;
}

.stock-row {
  cursor: pointer;
  transition: background 0.2s;
}

.stock-row:hover { background: rgba(24,144,255,0.08); }

.stock-table .up { color: #ff4d4f; font-weight: 600; }
.stock-table .down { color: #52c41a; font-weight: 600; }

.td-code { font-family: 'SF Mono', 'Fira Code', monospace; font-size: 13px; color: var(--primary); }

/* action-badge 针对 signal */
.action-badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
}
.action-badge.买入 { background: rgba(255,77,79,0.15); color: #ff4d4f; }
.action-badge.持有 { background: rgba(250,173,20,0.15); color: #faad14; }
.action-badge.卖出 { background: rgba(82,196,26,0.15); color: #52c41a; }
.action-badge.buy { background: rgba(255,77,79,0.15); color: #ff4d4f; }
.action-badge.hold { background: rgba(250,173,20,0.15); color: #faad14; }
.action-badge.sell { background: rgba(82,196,26,0.15); color: #52c41a; }

.demo-badge {
  display: inline-block;
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 8px;
  background: rgba(24,144,255,0.2);
  color: #40a9ff;
  margin-left: 6px;
  vertical-align: middle;
}

.empty-text {
  text-align: center;
  padding: 32px 16px;
  color: var(--text-secondary);
  font-size: 14px;
}

/* 响应式 */
@media (max-width: 768px) {
  .container { padding: 16px; }
  .trading-layout { grid-template-columns: 1fr; }
  .bottom-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .navbar { padding: 0 16px; }
  .nav-links a { padding: 6px 10px; font-size: 12px; }
  .search-box input { width: 160px; }
  .sector-grid { grid-template-columns: repeat(2, 1fr); }
}