/* ============================================
   港股估值洼地决策仪 — Bloomberg-Lite 终端风
   ============================================ */

/* === Design Tokens === */
:root {
  --bg-primary: #0E1117;
  --bg-panel: #161B22;
  --bg-inset: #1C2128;
  --border: #2A2D35;
  --border-focus: #58A6FF;
  --text-primary: #E6EDF3;
  --text-secondary: #7D8590;
  --text-muted: #484F58;
  --green: #2DD4A8;
  --green-dim: rgba(45,212,168,0.12);
  --red: #FF6B6B;
  --red-dim: rgba(255,107,107,0.12);
  --blue: #58A6FF;
  --gold: #F0C040;
  --gold-dim: rgba(240,192,64,0.12);
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  --font-sans: 'Inter', -apple-system, 'PingFang SC', 'Noto Sans SC', sans-serif;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --radius: 6px;
}

/* === Reset === */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { cursor: pointer; border: none; background: none; font-family: inherit; color: inherit; }
input, select, textarea { font-family: inherit; color: inherit; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* === Navbar === */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 56px;
  display: flex;
  align-items: center;
  background: rgba(14,17,23,0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.nav-brand .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
  animation: pulse-dot 2s ease-in-out infinite;
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s;
  letter-spacing: 0.02em;
}

.nav-links a:hover { color: var(--text-primary); }

.nav-cta {
  font-size: 12px;
  font-weight: 600;
  padding: 7px 18px;
  background: var(--green);
  color: var(--bg-primary);
  border-radius: var(--radius);
  transition: all 0.2s;
  letter-spacing: 0.02em;
}

.nav-cta:hover {
  background: #3EEABB;
  box-shadow: 0 0 20px rgba(45,212,168,0.25);
}

/* === Hero Section === */
.hero {
  padding: 80px 0 40px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.hero-grid {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 40px;
  align-items: start;
}

/* === Left Panel === */
.hero-left {
  padding-top: 24px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  color: var(--gold);
  background: var(--gold-dim);
  padding: 4px 12px;
  border-radius: var(--radius);
  margin-bottom: 20px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.hero-tag::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold);
  animation: pulse-dot 1.5s ease-in-out infinite;
}

.hero-title {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.hero-title .accent {
  color: var(--green);
}

.hero-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 28px;
}

/* === Input Area === */
.input-group {
  margin-bottom: 20px;
}

.input-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
  display: block;
}

.input-row {
  display: flex;
  gap: 8px;
}

.stock-input {
  flex: 1;
  height: 44px;
  padding: 0 16px;
  background: var(--bg-inset);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.2s;
}

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

.stock-input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(88,166,255,0.1);
}

.btn-scan {
  height: 44px;
  padding: 0 20px;
  background: var(--green);
  color: var(--bg-primary);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius);
  transition: all 0.2s;
  white-space: nowrap;
  letter-spacing: 0.02em;
}

.btn-scan:hover {
  background: #3EEABB;
  box-shadow: 0 0 20px rgba(45,212,168,0.25);
}

.btn-scan:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* === Quick Tags === */
.quick-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.quick-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 6px 14px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-secondary);
  transition: all 0.2s;
}

.quick-tag:hover {
  border-color: var(--blue);
  color: var(--blue);
  background: rgba(88,166,255,0.06);
}

/* === Key Metrics === */
.metrics-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}

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

.metric-label {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 6px;
}

.metric-value {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.metric-value.up { color: var(--green); }
.metric-value.down { color: var(--red); }
.metric-value.neutral { color: var(--text-primary); }

.metric-change {
  font-family: var(--font-mono);
  font-size: 11px;
  margin-top: 4px;
}

.metric-change.up { color: var(--green); }
.metric-change.down { color: var(--red); }

/* === Right Panel (Chart) === */
.hero-right {
  position: relative;
}

.chart-panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.chart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
}

.chart-stock-info {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.chart-stock-code {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
}

.chart-stock-name {
  font-size: 13px;
  color: var(--text-secondary);
}

.chart-stock-price {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
}

.chart-stock-price.up { color: var(--green); }
.chart-stock-price.down { color: var(--red); }

.chart-legend {
  display: flex;
  gap: 16px;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-secondary);
}

.legend-dot {
  width: 8px;
  height: 3px;
  border-radius: 1px;
}

.legend-dot.kline { background: var(--green); }
.legend-dot.cost { background: var(--blue); }
.legend-dot.flow { background: var(--gold); opacity: 0.6; }

.chart-canvas-wrap {
  position: relative;
  height: 380px;
  padding: 0;
}

.chart-canvas-wrap canvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* === Scanning Overlay === */
.scan-overlay {
  position: absolute;
  inset: 0;
  background: rgba(14,17,23,0.88);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 10;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
}

.scan-overlay.active {
  opacity: 1;
  visibility: visible;
}

.scan-line {
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, transparent, var(--green), transparent);
  box-shadow: 0 0 20px var(--green), 0 0 60px rgba(45,212,168,0.3);
  animation: scan-move 1.5s ease-in-out infinite;
}

@keyframes scan-move {
  0% { left: 0; opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { left: 100%; opacity: 0; }
}

.scan-text {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--green);
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}

.scan-progress {
  width: 200px;
  height: 2px;
  background: var(--border);
  border-radius: 1px;
  overflow: hidden;
}

.scan-progress-bar {
  height: 100%;
  background: var(--green);
  border-radius: 1px;
  width: 0%;
  transition: width 3s linear;
}

.scan-overlay.active .scan-progress-bar {
  width: 100%;
}

.scan-status {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 10px;
  letter-spacing: 0.05em;
}

/* === Chart Footer === */
.chart-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  border-top: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
}

.signal-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius);
  font-size: 11px;
  font-weight: 600;
}

.signal-badge.buy {
  background: var(--green-dim);
  color: var(--green);
}

.signal-badge.sell {
  background: var(--red-dim);
  color: var(--red);
}

.signal-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  animation: pulse-dot 1.5s ease-in-out infinite;
}

/* === Data Panels Section === */
.data-section {
  padding: 60px 0;
}

.data-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.data-panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.data-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
}

.data-panel-title {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.data-panel-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 2px 8px;
  border-radius: var(--radius);
  background: var(--green-dim);
  color: var(--green);
}

.data-table {
  width: 100%;
}

.data-table-row {
  display: flex;
  align-items: center;
  padding: 10px 18px;
  border-bottom: 1px solid rgba(42,45,53,0.5);
  transition: background 0.15s;
}

.data-table-row:hover {
  background: var(--bg-inset);
}

.data-table-row:last-child {
  border-bottom: none;
}

.dt-code {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  width: 60px;
  color: var(--text-primary);
}

.dt-name {
  flex: 1;
  font-size: 12px;
  color: var(--text-secondary);
}

.dt-value {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  width: 80px;
  text-align: right;
}

.dt-value.up { color: var(--green); }
.dt-value.down { color: var(--red); }

.dt-bar-wrap {
  width: 60px;
  height: 4px;
  background: var(--bg-inset);
  border-radius: 2px;
  margin-left: 12px;
  overflow: hidden;
}

.dt-bar {
  height: 100%;
  border-radius: 2px;
  transition: width 0.6s var(--ease-out);
}

.dt-bar.up { background: var(--green); }
.dt-bar.down { background: var(--red); }

/* === CTA Section === */
.cta-section {
  padding: 60px 0 80px;
}

.cta-panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 48px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.cta-left {}

.cta-title {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  line-height: 1.3;
}

.cta-title .accent { color: var(--green); }

.cta-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
}

.cta-benefits {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.cta-benefit {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-secondary);
}

.cta-benefit .check {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--green-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.cta-benefit .check svg {
  width: 10px;
  height: 10px;
  color: var(--green);
}

/* === Form === */
.cta-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.form-input {
  height: 44px;
  padding: 0 16px;
  background: var(--bg-inset);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.2s;
}

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

.form-input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(88,166,255,0.1);
}

.form-select {
  height: 44px;
  padding: 0 16px;
  background: var(--bg-inset);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text-primary);
  outline: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%237D8590' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  cursor: pointer;
  transition: border-color 0.2s;
}

.form-select:focus {
  border-color: var(--border-focus);
}

.btn-submit {
  height: 48px;
  background: var(--green);
  color: var(--bg-primary);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  border-radius: var(--radius);
  transition: all 0.2s;
  letter-spacing: 0.04em;
  margin-top: 4px;
}

.btn-submit:hover {
  background: #3EEABB;
  box-shadow: 0 0 24px rgba(45,212,168,0.3);
  transform: translateY(-1px);
}

.form-disclaimer {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* === Footer === */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  color: var(--text-muted);
  transition: color 0.2s;
}

.footer-links a:hover { color: var(--text-secondary); }

/* === Modal === */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s var(--ease-out);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  max-width: 480px;
  width: 100%;
  padding: 32px;
  position: relative;
  transform: translateY(16px) scale(0.97);
  transition: transform 0.3s var(--ease-out);
}

.modal-overlay.active .modal {
  transform: translateY(0) scale(1);
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--text-muted);
  border-radius: var(--radius);
  transition: all 0.2s;
}

.modal-close:hover {
  background: var(--bg-inset);
  color: var(--text-primary);
}

.modal-signal-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--green-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.modal-signal-icon svg {
  width: 24px;
  height: 24px;
  color: var(--green);
}

.modal-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.modal-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 24px;
}

.modal-data {
  background: var(--bg-inset);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 24px;
}

.modal-data-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 0;
}

.modal-data-row:not(:last-child) {
  border-bottom: 1px solid rgba(42,45,53,0.5);
}

.modal-data-label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
}

.modal-data-value {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
}

.modal-data-value.up { color: var(--green); }
.modal-data-value.down { color: var(--red); }
.modal-data-value.gold { color: var(--gold); }

.modal-cta {
  width: 100%;
  height: 44px;
  background: var(--green);
  color: var(--bg-primary);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  border-radius: var(--radius);
  transition: all 0.2s;
  letter-spacing: 0.04em;
}

.modal-cta:hover {
  background: #3EEABB;
  box-shadow: 0 0 20px rgba(45,212,168,0.25);
}

/* === Toast === */
.toast-container {
  position: fixed;
  top: 72px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  padding: 10px 20px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 12px;
  border-radius: var(--radius);
  opacity: 0;
  transform: translateY(-8px);
  transition: all 0.3s;
  white-space: nowrap;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.toast.success { border-color: var(--green); }
.toast.error { border-color: var(--red); }

/* === Responsive === */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-left {
    order: 1;
    padding-top: 0;
  }

  .hero-right {
    order: 0;
  }

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

  .cta-panel {
    grid-template-columns: 1fr;
    padding: 32px;
  }
}

@media (max-width: 768px) {
  .nav-links { display: none; }

  .hero { padding: 72px 0 32px; min-height: auto; }

  .hero-title { font-size: 28px; }

  .metrics-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .chart-canvas-wrap { height: 280px; }

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

  .cta-panel { padding: 24px; }
  .cta-title { font-size: 22px; }

  .footer-inner {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero-title { font-size: 24px; }
  .input-row { flex-direction: column; }
  .btn-scan { width: 100%; }
  .chart-canvas-wrap { height: 240px; }
  .quick-tags { gap: 6px; }
  .quick-tag { font-size: 11px; padding: 5px 10px; }
}