:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f6f8fb;
  --bg-tertiary: #eef2f7;
  --text-primary: #1a1d24;
  --text-secondary: #5e6575;
  --text-tertiary: #8b92a5;
  --border-color: #e4e8f0;
  --accent-blue: #2563eb;
  --accent-blue-light: #eff6ff;
  --accent-orange: #f59e0b;
  --accent-orange-light: #fff7ed;
  --up-color: #dc2626;
  --down-color: #16a34a;
  --neutral-color: #6b7280;
  --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.04);
  --shadow-md: 0 4px 12px rgba(16, 24, 40, 0.08);
  --shadow-lg: 0 12px 32px rgba(16, 24, 40, 0.12);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg-secondary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: var(--accent-blue);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

#app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
.site-header {
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

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

.brand-icon {
  font-size: 28px;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-blue-light);
  border-radius: var(--radius-md);
}

.brand-text h1 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.2px;
}

.brand-sub,
.brand-meta {
  margin: 2px 0 0;
  font-size: 13px;
  color: var(--text-secondary);
}

.brand-inline-sub {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 400;
  margin-left: 14px;
  letter-spacing: 0;
}

.brand-meta {
  font-size: 12px;
  color: var(--text-tertiary);
  margin-top: 2px;
}

.brand-meta span {
  color: var(--text-primary);
  font-weight: 600;
}

.report-date-inline {
  font-size: 12px;
  color: var(--text-tertiary);
  font-weight: 400;
  margin-left: 14px;
  letter-spacing: 0;
}

.report-date-inline span {
  color: var(--text-primary);
  font-weight: 600;
}

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 24px;
  width: 100%;
}

.view {
  flex: 1;
  animation: fadeIn 0.35s ease;
}

.view.hidden {
  display: none;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Home Sections */
.home-section {
  margin-bottom: 32px;
}

.home-section-title {
  font-size: 24px;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--text-primary);
}

.section-header {
  margin-bottom: 20px;
}

.section-subtitle {
  font-size: 15px;
  color: var(--text-secondary);
  margin: 0;
}

.overall-card-wrapper {
  width: 100%;
}

.overall-card-wrapper .card {
  width: 100%;
}

/* Cards Grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

@media (max-width: 768px) {
  .cards-grid {
    grid-template-columns: 1fr;
  }

  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .brand-inline-sub {
    margin-left: 10px;
    font-size: 12px;
  }
}

.card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: #d0d8e8;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--accent-blue);
}

.card:nth-child(2)::before { background: var(--accent-orange); }
.card:nth-child(3)::before { background: #7c3aed; }
.card:nth-child(4)::before { background: #0891b2; }

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 16px;
}

.card-title {
  font-size: 17px;
  font-weight: 700;
  margin: 0;
}

.card-badge {
  font-size: 11px;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.card-body {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.card-metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.card-metric {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.card-metric-label {
  font-size: 12px;
  color: var(--text-tertiary);
}

.card-metric-value {
  font-size: 20px;
  font-weight: 700;
}

.card-metric-value.is-small {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.3px;
}

.card-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 4px;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

.card-hint {
  font-size: 12px;
  color: var(--text-tertiary);
}

.card-arrow {
  font-size: 18px;
  color: var(--text-tertiary);
  transition: var(--transition);
}

.card:hover .card-arrow {
  color: var(--accent-blue);
  transform: translateX(3px);
}

.cash-card {
  cursor: default;
}

.cash-card:hover {
  transform: none;
  box-shadow: var(--shadow-sm);
}

/* Value colors */
.value-up { color: var(--up-color); }
.value-down { color: var(--down-color); }
.value-neutral { color: var(--text-primary); }
.value-red { color: #dc2626; }
.value-green { color: #16a34a; }
.value-black { color: #1a1d24; }

/* Detail View */
.detail-header {
  margin-bottom: 24px;
}

.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-primary);
  color: var(--text-secondary);
  font-size: 14px;
  cursor: pointer;
  transition: var(--transition);
  margin-bottom: 16px;
}

.back-btn:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  background: var(--accent-blue-light);
}

.back-arrow {
  font-size: 16px;
}

.detail-title-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.detail-meta {
  display: flex;
  gap: 20px;
  margin-top: 8px;
  flex-wrap: wrap;
}

.detail-meta-item {
  font-size: 13px;
  color: var(--text-tertiary);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  white-space: nowrap;
}

.detail-meta-item strong {
  color: var(--text-primary);
  font-weight: 700;
}

.detail-title {
  font-size: 24px;
  font-weight: 700;
  margin: 0;
}

.detail-desc {
  font-size: 15px;
  color: var(--text-secondary);
  margin: 0;
}

/* Metrics Section */
.metrics-section {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-bottom: 28px;
}

.metric-group {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.metric-group-title {
  font-size: 15px;
  font-weight: 700;
  color: #ffffff;
  margin: 0;
  padding: 14px 20px;
}

.group-return .metric-group-title {
  background: #ef4444;
}

.group-efficiency .metric-group-title {
  background: #1e40af;
}

.group-risk .metric-group-title {
  background: #22c55e;
}

.metric-group-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  padding: 20px;
}

@media (max-width: 900px) {
  .metric-group-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .metric-group-grid {
    grid-template-columns: 1fr;
  }
}

.metric-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  transition: var(--transition);
}

.metric-card:hover {
  background: var(--bg-tertiary);
}

.metric-label {
  font-size: 12px;
  color: var(--text-tertiary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.metric-value {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.2;
}

.metric-sub {
  font-size: 12px;
  color: var(--text-tertiary);
  margin-top: 6px;
}

/* Chart Section */
.chart-section {
  margin-bottom: 28px;
}

.chart-section.hidden {
  display: none;
}

.chart-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.chart-header {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 16px;
}

.chart-header h3 {
  font-size: 17px;
  font-weight: 700;
  margin: 0;
}

.chart-subtitle {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-tertiary);
  letter-spacing: 1px;
}

.chart-container {
  width: 100%;
  height: 360px;
}

.chart-footnote {
  margin: 6px 0 0;
  font-size: 12px;
  color: var(--text-tertiary);
}

.chart-container.holdings-pie {
  height: 300px;
  margin-bottom: 24px;
}

@media (max-width: 768px) {
  .chart-container {
    height: 280px;
  }

  .chart-container.holdings-pie {
    height: 260px;
  }
}

@media (max-width: 480px) {
  .chart-container.holdings-pie {
    height: 240px;
  }
}

/* Footer */
.site-footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border-color);
  padding: 20px 24px;
  text-align: center;
}

.site-footer p {
  margin: 4px 0;
  font-size: 13px;
  color: var(--text-secondary);
}

.footer-hint {
  font-size: 12px;
  color: var(--text-tertiary);
}

/* Data Table */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  background: var(--bg-primary);
}

.data-table th,
.data-table td {
  padding: 13px 16px;
  text-align: right;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.data-table th:first-child,
.data-table td:first-child {
  text-align: left;
}

.data-table th {
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  position: sticky;
  top: 0;
}

.data-table tbody tr:last-child td {
  border-bottom: none;
}

.data-table tbody tr:hover {
  background: var(--bg-secondary);
}

/* Archive Module */
.archive-section {
  margin-top: 8px;
}

.archive-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 16px;
}

@media (max-width: 768px) {
  .archive-list {
    grid-template-columns: 1fr;
  }
}

.archive-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.archive-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: #d0d8e8;
}

.archive-card.is-latest {
  border-color: var(--accent-blue);
  background: linear-gradient(135deg, var(--accent-blue-light) 0%, var(--bg-primary) 60%);
}

.archive-card-date {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.archive-date-text {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.2px;
}

.archive-latest-tag {
  font-size: 10px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--accent-blue);
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.archive-card-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 14px;
}

.archive-metric {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.archive-metric-label {
  font-size: 11px;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.archive-metric-value {
  font-size: 16px;
  font-weight: 700;
}

.archive-card-strategies {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.archive-strategy-badge {
  font-size: 12px;
  color: var(--text-secondary);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  white-space: nowrap;
}

.archive-strategy-badge em {
  font-style: normal;
  font-weight: 700;
  margin-left: 4px;
}

.archive-card-arrow {
  font-size: 13px;
  color: var(--accent-blue);
  font-weight: 600;
  padding-top: 10px;
  border-top: 1px solid var(--border-color);
}

.archive-empty {
  font-size: 14px;
  color: var(--text-tertiary);
  padding: 24px;
  text-align: center;
}

/* Historical Report Banner */
.archive-banner {
  background: linear-gradient(90deg, #fef3c7 0%, #fde68a 100%);
  border-bottom: 1px solid #f59e0b;
  padding: 10px 24px;
}

.archive-banner.hidden {
  display: none;
}

.archive-banner-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.archive-banner-icon {
  font-size: 18px;
}

.archive-banner-text {
  font-size: 14px;
  color: #78350f;
  font-weight: 500;
}

.archive-banner-text strong {
  color: #1a1d24;
  font-weight: 700;
}

.archive-banner-btn {
  padding: 5px 14px;
  border: 1px solid #f59e0b;
  border-radius: var(--radius-sm);
  background: #fff;
  color: #92400e;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.archive-banner-btn:hover {
  background: #f59e0b;
  color: #fff;
}

@media (max-width: 640px) {
  .archive-card-metrics {
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
  }

  .archive-metric-value {
    font-size: 14px;
  }
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  padding: 18px 0 0;
  flex-wrap: wrap;
}

.page-btn {
  min-width: 32px;
  padding: 6px 10px;
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  transition: var(--transition);
}

.page-btn:hover:not(:disabled) {
  background: var(--bg-tertiary);
  border-color: #d0d8e8;
}

.page-btn.active {
  background: var(--accent-blue);
  color: #ffffff;
  border-color: var(--accent-blue);
}

.page-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* Archive Pagination */
.archive-pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  padding: 20px 0 4px;
}

.archive-page-btn {
  min-width: 110px;
  padding: 8px 18px;
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition);
  letter-spacing: -0.1px;
}

.archive-page-btn:hover:not(:disabled) {
  background: var(--accent-blue-light);
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

.archive-page-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.archive-page-info {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: -0.2px;
}

.page-info {
  font-size: 13px;
  color: var(--text-tertiary);
  margin: 0 6px;
}

@media (max-width: 640px) {
  .data-table th,
  .data-table td {
    padding: 11px 12px;
    font-size: 13px;
  }
}