:root {
  --color-bg: #F5F2EB;
  --color-card: #FFFCF5;
  --color-subcard: rgba(255, 255, 255, 0.55);
  --color-ink: #1F1C19;
  --color-muted: #73665A;
  --color-accent: #0F6B5C;
  --color-accent-hover: #095045;
  --color-red: #C72E21;
  --color-green: #147347;
  --color-gold: #D19438;
  --color-gold-bg: rgba(209, 148, 56, 0.1);
  --color-border: rgba(0, 0, 0, 0.06);
  --color-shadow: rgba(0, 0, 0, 0.06);

  --radius-card: 24px;
  --radius-inner: 12px;
  --radius-capsule: 9999px;
  --spacing-page: 18px;
  --spacing-card-gap: 16px;
  --spacing-inner: 14px;
  --tab-bar-height: 56px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #1C1A17;
    --color-card: #2A2723;
    --color-subcard: #36332E;
    --color-ink: #F0EDE8;
    --color-muted: #9C9488;
    --color-accent: #339985;
    --color-accent-hover: #45B59E;
    --color-red: #E64D40;
    --color-green: #339E6B;
    --color-gold: #EBAE4D;
    --color-gold-bg: rgba(235, 174, 77, 0.1);
    --color-border: rgba(255, 255, 255, 0.08);
    --color-shadow: rgba(0, 0, 0, 0.3);
  }
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", sans-serif;
  background: var(--color-bg);
  color: var(--color-ink);
  line-height: 1.5;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  padding-bottom: calc(var(--tab-bar-height) + var(--safe-bottom) + 8px);
}

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

/* Tab Content Area */
.tab-content {
  display: none;
  padding: var(--spacing-page);
  padding-top: 20px;
  padding-bottom: calc(var(--spacing-page) + 60px);
}

.tab-content.active {
  display: block;
}

/* Page Header */
.page-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(245, 242, 235, 0.72);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  padding: 12px var(--spacing-page);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

@media (prefers-color-scheme: dark) {
  .page-header {
    background: rgba(28, 26, 23, 0.72);
  }
}

.page-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-ink);
}

.page-subtitle {
  font-size: 11px;
  color: var(--color-muted);
}

.theme-btn {
  flex-shrink: 0;
  padding: 6px 10px;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-capsule);
  color: var(--color-muted);
  cursor: pointer;
  font-size: 18px;
  font-family: inherit;
  min-height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ======== Theme Overrides ======== */

:root.force-dark {
  --color-bg: #1C1A17;
  --color-card: #2A2723;
  --color-subcard: #36332E;
  --color-ink: #F0EDE8;
  --color-muted: #9C9488;
  --color-accent: #339985;
  --color-red: #E64D40;
  --color-green: #339E6B;
  --color-gold: #EBAE4D;
  --color-border: rgba(255,255,255,0.08);
  --color-shadow: rgba(0,0,0,0.3);
}

:root.force-dark .page-header,
html.force-dark .page-header {
  background: rgba(28, 26, 23, 0.82) !important;
}

:root.force-dark .tab-bar,
html.force-dark .tab-bar {
  background: rgba(28, 26, 23, 0.82) !important;
}

:root.force-light {
  --color-bg: #F5F2EB;
  --color-card: #FFFCF5;
  --color-subcard: rgba(255,255,255,0.55);
  --color-ink: #1F1C19;
  --color-muted: #73665A;
  --color-accent: #0F6B5C;
  --color-red: #C72E21;
  --color-green: #147347;
  --color-gold: #D19438;
  --color-border: rgba(0,0,0,0.06);
  --color-shadow: rgba(0,0,0,0.06);
}

.fund-card[data-loading="true"] .fund-change,
.fund-card[data-loading="true"] .fund-detail-change {
  position: relative;
  overflow: hidden;
  border-radius: 4px;
  animation: shimmer 1.5s ease-in-out infinite;
  background: linear-gradient(90deg, var(--color-border) 25%, var(--color-subcard) 50%, var(--color-border) 75%);
  background-size: 200% 100%;
  color: transparent !important;
  min-width: 50px;
  min-height: 16px;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Cards */
.card {
  background: var(--color-card);
  border-radius: var(--radius-card);
  padding: var(--spacing-inner) 16px;
  border: 1px solid var(--color-border);
  box-shadow: 0 10px 18px var(--color-shadow);
  margin-bottom: var(--spacing-card-gap);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.card-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.card-time {
  font-size: 11px;
  color: var(--color-muted);
  font-weight: 400;
}

.card-compact {
  border-radius: var(--radius-inner);
  padding: 10px 14px;
  margin-bottom: 8px;
  background: var(--color-subcard);
  border: 1px solid var(--color-border);
}

/* Bottom Tab Bar */
.tab-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: calc(var(--tab-bar-height) + var(--safe-bottom));
  padding-bottom: var(--safe-bottom);
  background: rgba(245, 242, 235, 0.82);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-around;
}

@media (prefers-color-scheme: dark) {
  .tab-bar {
    background: rgba(28, 26, 23, 0.82);
  }
}

.tab-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  padding: 6px 12px;
  border: none;
  background: none;
  color: var(--color-muted);
  font-family: inherit;
  font-size: 10px;
  font-weight: 500;
  cursor: pointer;
  transition: color 0.15s;
  -webkit-tap-highlight-color: transparent;
  min-height: 44px;
  position: relative;
}

.tab-btn.active {
  color: var(--color-accent);
  font-weight: 700;
}

.tab-btn.active::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 3px;
  border-radius: 0 0 3px 3px;
  background: var(--color-accent);
}

.tab-btn .tab-icon {
  font-size: 22px;
  line-height: 1;
}

/* ======== Tab 1: 大盘 ======== */

.indices-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
}

.index-card {
  background: var(--color-card);
  border-radius: var(--radius-inner);
  padding: 10px;
  border: 1px solid var(--color-border);
  box-shadow: 0 2px 6px var(--color-shadow);
}

.index-name {
  font-size: 11px;
  color: var(--color-muted);
  margin-bottom: 2px;
  font-weight: 600;
}

.index-price {
  font-size: 16px;
  font-weight: 800;
  font-family: -apple-system, BlinkMacSystemFont, "SF Mono", monospace;
  color: var(--color-ink);
}

.index-change {
  font-size: 12px;
  font-weight: 700;
  margin-top: 1px;
}

.gain-up { color: var(--color-red); }
.gain-down { color: var(--color-green); }
.gain-flat { color: var(--color-muted); }

.fear-greed-bar {
  height: 8px;
  border-radius: 4px;
  margin-top: 8px;
  background: linear-gradient(
    to right,
    #E64D40 0%,
    #EBAE4D 25%,
    #EBAE4D 50%,
    #339E6B 75%,
    #339E6B 100%
  );
  position: relative;
}

.fear-greed-indicator {
  position: absolute;
  top: -3px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-ink);
  border: 2px solid var(--color-card);
  transform: translateX(-50%);
  box-shadow: 0 1px 4px rgba(0,0,0,0.2);
}

.fear-greed-value {
  font-size: 36px;
  font-weight: 800;
  color: var(--color-ink);
  margin: 8px 0 4px;
}

.fear-greed-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-muted);
  margin-bottom: 4px;
}

/* ======== Tab 2: 估值 ======== */

.filter-bar {
  display: flex;
  overflow-x: auto;
  gap: 8px;
  padding-bottom: 10px;
  margin-bottom: 12px;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.filter-bar::-webkit-scrollbar { display: none; }

.filter-chip {
  flex-shrink: 0;
  padding: 6px 14px;
  border-radius: var(--radius-capsule);
  border: 1px solid var(--color-border);
  background: var(--color-card);
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
  font-family: inherit;
}

.filter-chip.active {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

.fund-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: var(--color-card);
  border-radius: var(--radius-inner);
  border: 1px solid var(--color-border);
  margin-bottom: 8px;
  box-shadow: 0 2px 6px var(--color-shadow);
}

.fund-info {
  flex: 1;
  min-width: 0;
}

.fund-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.fund-meta {
  font-size: 11px;
  color: var(--color-muted);
  margin-top: 2px;
}

.fund-values {
  text-align: right;
  flex-shrink: 0;
}

.fund-change {
  font-size: 16px;
  font-weight: 700;
}

.fund-detail-change {
  font-size: 11px;
  color: var(--color-muted);
  margin-top: 1px;
}

.fund-secondary-change {
  font-size: 11px;
  font-weight: 500;
  margin-top: 2px;
}

/* ======== Disclaimer ======== */

.disclaimer {
  font-size: 11px;
  color: var(--color-muted);
  text-align: center;
  padding: 12px 0;
  line-height: 1.6;
}

.category-section {
  margin-bottom: 16px;
}

.category-header {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-muted);
  margin-bottom: 8px;
  padding-left: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.fund-count {
  font-weight: 400;
  font-size: 11px;
}

/* Status capsules */
.status-capsule {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--radius-capsule);
  font-size: 10px;
  font-weight: 700;
  line-height: 1.6;
}

.status-pre {
  background: rgba(31, 122, 255, 0.12);
  color: #265f8f;
}

.status-regular {
  background: rgba(20, 115, 71, 0.12);
  color: #147347;
}

.status-after {
  background: rgba(100, 100, 100, 0.1);
  color: var(--color-muted);
}

.status-closed {
  background: rgba(100, 100, 100, 0.08);
  color: var(--color-muted);
}

@media (prefers-color-scheme: dark) {
  .status-pre { background: rgba(31, 170, 255, 0.15); color: #6db8ff; }
  .status-regular { background: rgba(51, 158, 107, 0.15); color: #339E6B; }
}

/* ======== Tab 3: 热力图（板块网格） ======== */

.heatmap-container {
  width: 100%;
  min-height: 200px;
  background: var(--color-bg);
}

.hm-session {
  text-align: center;
  font-size: 11px;
  font-weight: 500;
  color: var(--color-muted);
  margin-bottom: 12px;
  padding: 4px 12px;
}

.hm-sector-section {
  margin-bottom: 14px;
}

.hm-sector-section:first-child {
  padding-top: 4px;
}

.hm-sector-title {
  font-size: 11px;
  font-weight: 600;
  color: var(--color-muted);
  margin-bottom: 6px;
  padding-left: 2px;
}

.hm-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 3px;
}

.hm-cell {
  border-radius: 6px;
  padding: 6px 4px;
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 42px;
  cursor: pointer;
}

/* ======== Fund Detail Overlay ======== */


.hm-symbol {
  font-size: 10px;
  font-weight: 500;
  line-height: 1.2;
  font-family: -apple-system, BlinkMacSystemFont, "SF Mono", monospace;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.hm-change {
  font-size: 9px;
  font-weight: 600;
  line-height: 1.2;
  font-family: -apple-system, BlinkMacSystemFont, "SF Mono", monospace;
}

/* ======== Tab 4: 额度 ======== */

.limit-card {
  padding: 12px 14px;
  background: var(--color-card);
  border-radius: var(--radius-inner);
  border: 1px solid var(--color-border);
  margin-bottom: 8px;
  box-shadow: 0 2px 6px var(--color-shadow);
}

.limit-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.limit-fund-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-ink);
}

.limit-fund-meta {
  font-size: 11px;
  color: var(--color-muted);
  margin-top: 2px;
}

.limit-detail {
  margin-top: 8px;
  font-size: 12px;
  color: var(--color-muted);
}

.limit-pending {
  margin-top: 8px;
  padding: 7px 10px;
  background: var(--color-gold-bg);
  border-radius: 10px;
  font-size: 11px;
  color: var(--color-gold);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

.limit-open {
  background: rgba(20, 115, 71, 0.1);
  color: var(--color-green);
}

.limit-limited {
  background: rgba(209, 148, 56, 0.1);
  color: var(--color-gold);
}

.limit-suspended {
  background: rgba(199, 46, 33, 0.1);
  color: var(--color-red);
}

/* ======== Market Session Banner ======== */

.session-banner {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  margin-bottom: 12px;
  font-size: 12px;
  color: var(--color-muted);
}

.session-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-green);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ======== App Download Elements ======== */

.download-banner {
  position: fixed;
  bottom: calc(var(--tab-bar-height) + var(--safe-bottom));
  left: var(--spacing-page);
  right: var(--spacing-page);
  z-index: 99;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-inner);
  box-shadow: 0 -2px 12px var(--color-shadow);
}

.download-banner-text {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-ink);
}

.download-banner-btn {
  flex-shrink: 0;
  padding: 6px 14px;
  background: var(--color-accent);
  color: #fff;
  border-radius: var(--radius-capsule);
  font-size: 12px;
  font-weight: 600;
  text-decoration: none;
  margin-left: 10px;
  border: none;
  cursor: pointer;
  font-family: inherit;
}

/* ======== Float Refresh ======== */

#floatRefreshBtn {
  position: fixed;
  right: 18px;
  bottom: calc(var(--tab-bar-height) + var(--safe-bottom) + 80px);
  z-index: 90;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  box-shadow: 0 2px 8px var(--color-shadow);
  color: var(--color-accent);
  font-size: 20px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  -webkit-tap-highlight-color: transparent;
  font-family: -apple-system, system-ui, "PingFang SC", sans-serif;
}

#floatRefreshBtn.spin {
  animation: fr-spin 0.6s ease;
}

@keyframes fr-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.download-card-inline {
  text-align: center;
  padding: 12px;
  color: var(--color-muted);
  font-size: 12px;
}

.download-card-inline a {
  color: var(--color-accent);
  font-weight: 600;
}

/* ======== Overlays ======== */

.overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.overlay.hidden {
  display: none;
}

.overlay-card {
  background: var(--color-card);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  max-width: 340px;
  width: 100%;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}

.overlay-card h3 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--color-ink);
}

.overlay-card p {
  margin: 0 0 20px;
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.6;
}

.overlay-card ol {
  text-align: left;
  padding-left: 20px;
  margin: 0 0 16px;
  font-size: 14px;
  color: var(--color-ink);
}

.overlay-card ol li {
  margin-bottom: 8px;
  line-height: 1.5;
}

.btn-primary {
  display: inline-block;
  padding: 10px 24px;
  background: var(--color-accent);
  color: #fff;
  border-radius: var(--radius-capsule);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
}

.btn-secondary {
  display: inline-block;
  padding: 10px 24px;
  background: transparent;
  color: var(--color-muted);
  border: none;
  font-size: 14px;
  cursor: pointer;
  margin-top: 4px;
  font-family: inherit;
}

/* ======== Loading & Error ======== */

.loading-spinner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 0;
  color: var(--color-muted);
  gap: 12px;
}

.spinner {
  width: 28px;
  height: 28px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.error-card {
  padding: 16px;
  background: rgba(199, 46, 33, 0.06);
  border-radius: var(--radius-inner);
  text-align: center;
  color: var(--color-red);
  font-size: 13px;
  margin: 20px 0;
}

.retry-btn {
  margin-top: 8px;
  padding: 6px 16px;
  background: transparent;
  border: 1px solid var(--color-red);
  color: var(--color-red);
  border-radius: var(--radius-capsule);
  font-size: 12px;
  cursor: pointer;
  font-family: inherit;
}

.empty-state {
  text-align: center;
  padding: 40px 0;
  color: var(--color-muted);
  font-size: 14px;
}

/* ======== Responsive ======== */

@media (min-width: 640px) {
  .tab-content {
    max-width: 640px;
    margin: 0 auto;
    padding: 24px var(--spacing-page);
  }

  .download-banner {
    max-width: 640px;
    left: 50%;
    transform: translateX(-50%);
  }

  .heatmap-container {
    padding-bottom: 65%;
  }
}