:root {
  --bg: #f8fafc;
  --surface: #ffffff;
  --surface-light: #f1f5f9;
  --text: #0f172a;
  --text-muted: #64748b;
  --accent: #2563eb;
  --accent-soft: rgba(37, 99, 235, 0.08);
  --accent-light: #dbeafe;
  --border: #e2e8f0;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --radius: 16px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 4px 16px rgba(0, 0, 0, 0.06);
}

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

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

.app {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px 40px;
}

/* Header */
.header {
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 28px;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 16px;
  color: #fff;
  letter-spacing: -0.02em;
}

h1 {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.subtitle {
  color: var(--text-muted);
  font-size: 14px;
  margin-top: 2px;
}

.update-time {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-muted);
  background: var(--surface);
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.4);
}

/* Summary cards */
.summary-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.stat-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: 0 4px 20px rgba(37, 99, 235, 0.1);
}

.stat-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.stat-value {
  font-size: 32px;
  font-weight: 800;
  background: linear-gradient(90deg, #2563eb, #7c3aed);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-unit {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Controls */
.controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 28px;
}

.filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.filter-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.filter-btn:hover {
  color: var(--text);
  border-color: var(--accent);
}

.filter-btn.active {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: var(--accent);
}

.search-box input {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 16px;
  border-radius: 999px;
  width: 320px;
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.search-box input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.search-box input::placeholder {
  color: var(--text-muted);
}

/* Timeline */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.timeline-day {
  animation: fadeIn 0.4s ease both;
}

.day-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 8px;
}

.day-date {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 18px;
  font-weight: 700;
}

.day-badge {
  background: var(--accent-soft);
  color: var(--accent);
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}

.day-summary {
  color: var(--text-muted);
  font-size: 14px;
}

.fund-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(420px, 1fr));
  gap: 20px;
}

/* Fund card */
.fund-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 18px;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.fund-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.1);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.fund-name {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.fund-code {
  font-family: "SF Mono", Monaco, monospace;
  font-size: 13px;
  color: var(--accent);
  margin-top: 4px;
  font-weight: 600;
}

.fund-category {
  background: var(--surface-light);
  color: var(--text);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
  white-space: nowrap;
  border: 1px solid var(--border);
}

.card-metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  background: var(--surface-light);
  padding: 16px;
  border-radius: 12px;
  border: 1px solid var(--border);
}

.metric-label {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.metric-value {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

.metric-value.muted {
  color: var(--text-muted);
  font-weight: 400;
}

.card-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.section-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.section-text {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* Market opportunity section */
.opportunity-box {
  background: linear-gradient(135deg, #f0f9ff 0%, #eff6ff 100%);
  border: 1px solid var(--accent-light);
  border-radius: 12px;
  padding: 16px;
}

.opportunity-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-bottom: 12px;
}

.opp-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  text-align: center;
}

.opp-label {
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 4px;
  font-weight: 500;
}

.opp-value {
  font-size: 14px;
  font-weight: 700;
}

.opp-value.bullish {
  color: var(--success);
}

.opp-value.bearish {
  color: var(--danger);
}

.opp-value.neutral {
  color: var(--warning);
}

.opp-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Benchmark - highlighted */
.card-benchmark {
  background: var(--accent-soft);
  border: 1px solid var(--accent-light);
  border-radius: 10px;
  padding: 14px 16px;
  font-size: 13px;
  color: var(--text);
  line-height: 1.6;
  font-weight: 500;
}

.card-benchmark::before {
  content: "业绩基准";
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 999px;
  margin-right: 8px;
  vertical-align: middle;
}

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

.tag {
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 6px;
  font-weight: 500;
}

.empty {
  text-align: center;
  color: var(--text-muted);
  padding: 60px 0;
  font-size: 16px;
}

.footer {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive */
@media (max-width: 768px) {
  .app {
    padding: 0 16px 32px;
  }

  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .controls {
    flex-direction: column;
    align-items: stretch;
  }

  .search-box input {
    width: 100%;
  }

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

  .summary-cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .stat-value {
    font-size: 24px;
  }

  .opportunity-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}