:root {
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-card: #1a2332;
  --bg-card-hover: #1f2b3d;
  --border: #2a3548;
  --text-primary: #e5e7eb;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --accent-blue: #3b82f6;
  --accent-green: #10b981;
  --accent-red: #ef4444;
  --accent-yellow: #f59e0b;
  --accent-purple: #8b5cf6;
  --accent-cyan: #06b6d4;
  --accent-orange: #f97316;
  --gradient-up: linear-gradient(135deg, #10b981, #059669);
  --gradient-down: linear-gradient(135deg, #ef4444, #dc2626);
  --shadow: 0 4px 6px -1px rgba(0,0,0,0.3);
  --shadow-lg: 0 10px 25px -5px rgba(0,0,0,0.4);
}
* { margin:0; padding:0; box-sizing:border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
}
.header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 16px 24px;
  background: linear-gradient(135deg, #111827, #1a2332);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 100;
}
.header h1 { font-size: 22px; font-weight: 700; }
.subtitle { color: var(--text-muted); font-size: 13px; margin-left: 12px; }
.header-right { display: flex; align-items: center; gap: 16px; }
.market-status { display: flex; align-items: center; gap: 6px; font-size: 13px; }
.status-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent-green);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%,100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.datetime { color: var(--text-secondary); font-size: 13px; font-variant-numeric: tabular-nums; }
.btn-refresh {
  background: var(--accent-blue); color: #fff; border: none;
  padding: 8px 16px; border-radius: 8px; cursor: pointer; font-size: 13px;
  transition: all 0.2s;
}
.btn-refresh:hover { background: #2563eb; transform: translateY(-1px); }

.nav-tabs {
  display: flex; gap: 4px; padding: 12px 24px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  overflow-x: auto; white-space: nowrap;
}
.tab {
  background: transparent; color: var(--text-secondary);
  border: 1px solid transparent; padding: 8px 16px;
  border-radius: 8px; cursor: pointer; font-size: 13px;
  transition: all 0.2s;
}
.tab:hover { background: var(--bg-card); color: var(--text-primary); }
.tab.active {
  background: var(--accent-blue); color: #fff;
  border-color: var(--accent-blue);
}

.main-content { padding: 20px 24px; max-width: 1600px; margin: 0 auto; }

/* 通用卡片 */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 16px;
  transition: all 0.2s;
}
.card:hover { border-color: var(--accent-blue); box-shadow: var(--shadow); }
.card-title {
  font-size: 15px; font-weight: 600; margin-bottom: 16px;
  display: flex; align-items: center; gap: 8px;
}
.card-title .icon { font-size: 18px; }

/* 网格布局 */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.grid-5 { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }

@media (max-width: 1200px) {
  .grid-4, .grid-5 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4, .grid-5 { grid-template-columns: 1fr; }
  .header { flex-direction: column; gap: 12px; }
  .nav-tabs { flex-wrap: wrap; }
}

/* 数据指标卡 */
.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  text-align: center;
  transition: all 0.3s;
}
.metric-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.metric-label { font-size: 12px; color: var(--text-muted); margin-bottom: 6px; }
.metric-value { font-size: 22px; font-weight: 700; font-variant-numeric: tabular-nums; }
.metric-change { font-size: 12px; margin-top: 4px; font-weight: 500; }
.up { color: var(--accent-green); }
.down { color: var(--accent-red); }
.neutral { color: var(--text-muted); }

/* 表格 */
.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.data-table th {
  text-align: left; padding: 10px 12px;
  color: var(--text-muted); font-weight: 500;
  border-bottom: 1px solid var(--border);
  font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px;
}
.data-table td {
  padding: 10px 12px; border-bottom: 1px solid rgba(42,53,72,0.5);
}
.data-table tr:hover td { background: var(--bg-card-hover); }
.data-table .rank {
  display: inline-flex; align-items: center; justify-content: center;
  width: 24px; height: 24px; border-radius: 6px;
  font-size: 11px; font-weight: 700;
}
.rank-1 { background: linear-gradient(135deg, #f59e0b, #d97706); color: #000; }
.rank-2 { background: linear-gradient(135deg, #9ca3af, #6b7280); color: #000; }
.rank-3 { background: linear-gradient(135deg, #cd7f32, #a0522d); color: #fff; }
.rank-other { background: var(--bg-secondary); color: var(--text-secondary); }

/* 进度条 */
.bar-container {
  width: 100%; height: 6px; background: var(--bg-secondary);
  border-radius: 3px; overflow: hidden;
}
.bar-fill { height: 100%; border-radius: 3px; transition: width 0.8s ease; }
.bar-green { background: var(--gradient-up); }
.bar-red { background: var(--gradient-down); }
.bar-blue { background: linear-gradient(135deg, #3b82f6, #2563eb); }

/* 信号指示器 */
.signal-badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 10px; border-radius: 20px;
  font-size: 11px; font-weight: 600;
}
.signal-bullish { background: rgba(16,185,129,0.15); color: var(--accent-green); }
.signal-bearish { background: rgba(239,68,68,0.15); color: var(--accent-red); }
.signal-neutral { background: rgba(107,114,128,0.15); color: var(--text-muted); }
.signal-hot { background: rgba(245,158,11,0.15); color: var(--accent-yellow); }

/* 推荐卡片 */
.recommend-card {
  background: linear-gradient(135deg, #1a2332, #1f2b3d);
  border: 1px solid var(--accent-blue);
  border-radius: 16px; padding: 24px;
  margin-bottom: 16px;
  box-shadow: 0 0 20px rgba(59,130,246,0.1);
}
.recommend-card.top-pick {
  border-color: var(--accent-yellow);
  box-shadow: 0 0 30px rgba(245,158,11,0.15);
}
.recommend-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 16px;
}
.recommend-title { font-size: 18px; font-weight: 700; }
.recommend-score {
  font-size: 28px; font-weight: 800;
  background: linear-gradient(135deg, var(--accent-yellow), var(--accent-orange));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.recommend-reasons { list-style: none; }
.recommend-reasons li {
  padding: 8px 0; border-bottom: 1px solid rgba(42,53,72,0.5);
  font-size: 14px; display: flex; align-items: flex-start; gap: 8px;
}
.recommend-reasons li:last-child { border-bottom: none; }

/* 层级标题 */
.layer-header {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 20px; padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.layer-header h2 { font-size: 20px; font-weight: 700; }
.layer-header .layer-desc { color: var(--text-muted); font-size: 13px; }

/* 热力图 */
.heatmap-cell {
  padding: 12px; border-radius: 8px; text-align: center;
  font-size: 12px; font-weight: 600;
  transition: transform 0.2s;
}
.heatmap-cell:hover { transform: scale(1.05); }

/* 资金流向箭头 */
.flow-indicator {
  display: flex; align-items: center; gap: 6px;
  font-size: 13px; font-weight: 500;
}
.flow-arrow { font-size: 16px; }

/* 迷你图 */
.sparkline {
  display: flex; align-items: flex-end; gap: 1px; height: 30px;
}
.sparkline-bar {
  width: 4px; border-radius: 2px;
  transition: height 0.3s;
}

/* 滚动条 */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* 总览页面 */
.overview-summary {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px;
  margin-bottom: 20px;
}
.summary-item {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 10px; padding: 14px; text-align: center;
}
.summary-item .label { font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }
.summary-item .value { font-size: 20px; font-weight: 700; margin: 4px 0; }
.summary-item .change { font-size: 12px; }

.section-divider {
  margin: 24px 0 16px;
  font-size: 16px; font-weight: 600;
  display: flex; align-items: center; gap: 8px;
}
.section-divider::after {
  content: ''; flex: 1; height: 1px; background: var(--border);
}

/* 加载动画 */
.loading {
  display: flex; align-items: center; justify-content: center;
  padding: 40px; color: var(--text-muted);
}
.loading::after {
  content: ''; width: 20px; height: 20px;
  border: 2px solid var(--border); border-top-color: var(--accent-blue);
  border-radius: 50%; animation: spin 0.8s linear infinite; margin-left: 8px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* 风险提示 */
.risk-tag {
  display: inline-block; padding: 2px 8px; border-radius: 4px;
  font-size: 11px; font-weight: 600;
}
.risk-low { background: rgba(16,185,129,0.15); color: var(--accent-green); }
.risk-medium { background: rgba(245,158,11,0.15); color: var(--accent-yellow); }
.risk-high { background: rgba(239,68,68,0.15); color: var(--accent-red); }

/* 数据源状态栏 */
.data-source-panel {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 8px 24px;
  font-size: 12px;
}
.data-source-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.mode-toggle {
  padding: 4px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s;
  background: var(--bg-card);
  color: var(--text-secondary);
}
.mode-toggle.live {
  background: rgba(16,185,129,0.15);
  border-color: var(--accent-green);
  color: var(--accent-green);
}
.mode-toggle:hover {
  transform: translateY(-1px);
}
.source-count {
  color: var(--text-muted);
  font-size: 11px;
}
.source-dots {
  display: flex;
  gap: 8px;
  margin-left: auto;
}
.source-dot {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-size: 11px;
  color: var(--text-muted);
}
.source-dot.live {
  color: var(--accent-green);
}
.source-dot.live::before {
  content: '🟢';
  font-size: 8px;
}
.source-dot.dead {
  color: var(--text-muted);
  opacity: 0.6;
}
.source-dot.dead::before {
  content: '⚫';
  font-size: 8px;
}

/* 加密货币详情卡片 */
.crypto-detail {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
  margin-top: 12px;
}
.crypto-coin {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.crypto-coin img {
  width: 32px;
  height: 32px;
  border-radius: 50%;
}
.crypto-coin .coin-name {
  font-size: 13px;
  font-weight: 600;
}
.crypto-coin .coin-symbol {
  font-size: 11px;
  color: var(--text-muted);
}
.crypto-coin .coin-price {
  font-size: 15px;
  font-weight: 700;
  margin-top: 2px;
}
.crypto-coin .coin-change {
  font-size: 12px;
  font-weight: 500;
}