/* ═══════════════════════════════════════════════════════════════
 * Zeak Invest V3 · Homepage Design System
 * Dark glass-morphism SaaS style
 * Independent from zeak.css — dual-track during V2→V3 migration
 * ═══════════════════════════════════════════════════════════════ */

/* ── Design Tokens ── */
:root {
  --v3-bg: #0A0E14;
  --v3-surface: rgba(255,255,255,0.03);
  --v3-surface-hover: rgba(255,255,255,0.06);
  --v3-surface-glass: rgba(255,255,255,0.04);
  --v3-border: rgba(255,255,255,0.06);
  --v3-border-strong: rgba(255,255,255,0.10);
  --v3-accent: #3B82F6;
  --v3-accent-alt: #8B5CF6;
  --v3-accent-glow: rgba(59,130,246,0.15);
  --v3-up: #22C55E;
  --v3-up-bg: rgba(34,197,94,0.10);
  --v3-down: #EF4444;
  --v3-down-bg: rgba(239,68,68,0.10);
  --v3-text: #E6E8EC;
  --v3-text-secondary: #8B92A0;
  --v3-text-tertiary: #5A6070;
  --v3-radius: 12px;
  --v3-radius-sm: 8px;
  --v3-gap: 16px;
  --v3-font: 'Inter', -apple-system, BlinkMacSystemFont, 'PingFang SC', sans-serif;
  --v3-mono: 'JetBrains Mono', 'SF Mono', monospace;
  --v3-ease: cubic-bezier(0.16, 1, 0.3, 1);
  --v3-ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --v3-dur: 200ms;
  --v3-dur-slow: 500ms;
  --v3-shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --v3-shadow-md: 0 4px 16px rgba(0,0,0,0.4);
  --v3-shadow-lg: 0 8px 32px rgba(0,0,0,0.5);
  --v3-hero-pattern: radial-gradient(ellipse 100% 80% at 50% -20%, rgba(59,130,246,0.12) 0%, transparent 60%),
                     radial-gradient(ellipse 80% 60% at 80% 50%, rgba(139,92,246,0.08) 0%, transparent 50%);
}

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

html { font-size: 15px; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }

.v3-body {
  background: var(--v3-bg);
  color: var(--v3-text);
  font-family: var(--v3-font);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; font-size: inherit; }

/* ── Background ── */
.v3-bg {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background: var(--v3-hero-pattern);
}
.v3-bg::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(to bottom, transparent 0%, var(--v3-bg) 100%);
  mask: linear-gradient(to bottom, #000 40%, transparent 100%);
}

/* ── Nav ── */
.v3-nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10,14,20,0.85);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--v3-border);
  height: 60px; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.v3-nav-brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 18px; letter-spacing: -0.3px; color: var(--v3-text);
}
.v3-nav-logo {
  width: 34px; height: 34px; border-radius: 8px;
  background: linear-gradient(135deg, var(--v3-accent), var(--v3-accent-alt));
  display: grid; place-items: center;
  font-size: 16px; font-weight: 800; color: #fff;
  box-shadow: 0 2px 14px var(--v3-accent-glow);
}
.v3-nav-links { display: flex; align-items: center; gap: 4px; }
.v3-nav-link {
  padding: 8px 16px; border-radius: var(--v3-radius-sm);
  color: var(--v3-text-secondary); font-size: 14px; font-weight: 500;
  transition: all var(--v3-dur) var(--v3-ease);
}
.v3-nav-link:hover { color: var(--v3-accent); background: var(--v3-accent-glow); }
.v3-nav-link.active {
  color: var(--v3-accent); font-weight: 600;
  background: var(--v3-accent-glow);
}
.v3-nav-right { display: flex; align-items: center; gap: 12px; }
.v3-btn-login {
  padding: 7px 18px; border-radius: var(--v3-radius-sm);
  background: var(--v3-surface); border: 1px solid var(--v3-border-strong);
  color: var(--v3-text-secondary); font-size: 14px; font-weight: 500;
  transition: all var(--v3-dur) var(--v3-ease);
}
.v3-btn-login:hover { border-color: var(--v3-accent); color: var(--v3-accent); }
.v3-btn-cta {
  padding: 8px 20px; border-radius: var(--v3-radius-sm);
  background: linear-gradient(135deg, var(--v3-accent), var(--v3-accent-alt));
  color: #fff; font-size: 14px; font-weight: 600;
  transition: all var(--v3-dur) var(--v3-ease);
  box-shadow: 0 2px 14px var(--v3-accent-glow);
}
.v3-btn-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 24px var(--v3-accent-glow);
}
.v3-btn-cta:active { transform: scale(0.97); }

/* ── Hero ── */
.v3-hero {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px;
  max-width: 1200px; margin: 0 auto; padding: 80px 24px 64px;
  align-items: center;
  min-height: 70vh;
}

.v3-hero-brand { display: flex; flex-direction: column; gap: 24px; }
.v3-hero-eyebrow {
  font-size: 12px; font-weight: 700; letter-spacing: 2px;
  color: var(--v3-accent); text-transform: uppercase;
}
.v3-hero-title {
  font-size: 52px; font-weight: 800; letter-spacing: -1.5px; line-height: 1.1;
}
.v3-hero-title-accent {
  background: linear-gradient(135deg, var(--v3-accent) 0%, var(--v3-accent-alt) 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.v3-hero-desc {
  font-size: 17px; color: var(--v3-text-secondary); line-height: 1.7;
  max-width: 440px;
}
.v3-hero-stats { display: flex; gap: 32px; }
.v3-hero-stat-val {
  font-size: 28px; font-weight: 700; font-family: var(--v3-mono);
  font-variant-numeric: tabular-nums;
}
.v3-hero-stat-label {
  font-size: 12px; color: var(--v3-text-tertiary); margin-top: 2px;
}
.v3-hero-cta { display: flex; gap: 12px; }
.v3-btn-primary {
  padding: 13px 28px; border-radius: var(--v3-radius-sm);
  background: linear-gradient(135deg, var(--v3-accent), var(--v3-accent-alt));
  color: #fff; font-size: 15px; font-weight: 600;
  transition: all var(--v3-dur) var(--v3-ease);
  box-shadow: 0 4px 20px var(--v3-accent-glow);
}
.v3-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 30px rgba(59,130,246,0.25);
}
.v3-btn-secondary {
  padding: 12px 24px; border-radius: var(--v3-radius-sm);
  background: var(--v3-surface); border: 1px solid var(--v3-border-strong);
  color: var(--v3-text); font-size: 15px; font-weight: 500;
  transition: all var(--v3-dur) var(--v3-ease);
}
.v3-btn-secondary:hover { border-color: var(--v3-accent); color: var(--v3-accent); }

/* ── Hero Data Panel ── */
.v3-hero-panel {
  background: var(--v3-surface-glass);
  border: 1px solid var(--v3-border);
  border-radius: 16px;
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  overflow: hidden;
}
.v3-hero-panel-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px; border-bottom: 1px solid var(--v3-border);
  font-size: 13px; color: var(--v3-text-secondary);
}
.v3-hero-ticker {
  padding: 16px 18px; display: flex; flex-direction: column; gap: 10px;
}
.v3-ticker-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 12px; border-radius: var(--v3-radius-sm);
  background: var(--v3-surface); border: 1px solid var(--v3-border);
  transition: all var(--v3-dur) var(--v3-ease);
}
.v3-ticker-row:hover {
  background: var(--v3-surface-hover); border-color: var(--v3-border-strong);
}
.v3-ticker-name { font-weight: 600; font-size: 14px; }
.v3-ticker-code {
  font-family: var(--v3-mono); font-size: 12px;
  color: var(--v3-text-tertiary); margin-left: 6px; font-weight: 400;
}
.v3-ticker-info { text-align: right; }
.v3-ticker-price {
  font-family: var(--v3-mono); font-size: 16px; font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.v3-ticker-change {
  font-family: var(--v3-mono); font-size: 13px; font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.v3-ticker-change.up { color: var(--v3-up); }
.v3-ticker-change.down { color: var(--v3-down); }
.v3-hero-pulse {
  display: flex; align-items: center; gap: 6px;
  font-size: 11px; color: var(--v3-up);
  padding: 8px 18px; border-top: 1px solid var(--v3-border);
}
.v3-pulse-dot {
  display: inline-block; width: 6px; height: 6px; border-radius: 50%;
  background: var(--v3-up);
  box-shadow: 0 0 8px rgba(34,197,94,0.5);
  animation: v3-pulse 2s ease-in-out infinite;
}
@keyframes v3-pulse { 0%,100%{opacity:1} 50%{opacity:.3} }

/* ── Feature Grid ── */
.v3-section {
  position: relative; z-index: 1;
  max-width: 1200px; margin: 0 auto; padding: 64px 24px;
}
.v3-section-header { text-align: center; margin-bottom: 48px; }
.v3-section-title {
  font-size: 32px; font-weight: 700; letter-spacing: -0.5px;
  margin-bottom: 12px;
}
.v3-section-subtitle { font-size: 16px; color: var(--v3-text-secondary); }

.v3-feature-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--v3-gap);
}
.v3-feature-card {
  background: var(--v3-surface-glass);
  border: 1px solid var(--v3-border);
  border-radius: var(--v3-radius);
  padding: 28px 22px 22px;
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  transition: all 300ms var(--v3-ease);
  cursor: pointer;
}
.v3-feature-card:hover {
  background: var(--v3-surface-hover);
  border-color: var(--v3-border-strong);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}
.v3-feature-icon {
  width: 42px; height: 42px; border-radius: 10px;
  display: grid; place-items: center;
  font-size: 20px; margin-bottom: 16px;
}
.v3-feature-icon.accent { background: rgba(59,130,246,0.12); color: var(--v3-accent); }
.v3-feature-icon.purple { background: rgba(139,92,246,0.12); color: var(--v3-accent-alt); }
.v3-feature-icon.green { background: rgba(34,197,94,0.12); color: var(--v3-up); }
.v3-feature-icon.amber { background: rgba(245,158,11,0.12); color: #F59E0B; }
.v3-feature-title { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.v3-feature-desc { font-size: 13px; color: var(--v3-text-secondary); line-height: 1.6; }
.v3-feature-stat {
  margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--v3-border);
  font-family: var(--v3-mono); font-size: 11px; color: var(--v3-text-tertiary);
}

/* ── Footer ── */
.v3-footer {
  position: relative; z-index: 1;
  border-top: 1px solid var(--v3-border);
  padding: 32px 24px;
  text-align: center;
  color: var(--v3-text-tertiary); font-size: 13px;
}
.v3-footer-links { display: flex; justify-content: center; gap: 24px; margin-bottom: 12px; }
.v3-footer-links a { transition: color var(--v3-dur); }
.v3-footer-links a:hover { color: var(--v3-accent); }

/* ── Toasts ── */
.v3-toast {
  position: fixed; bottom: 28px; right: 28px; z-index: 200;
  padding: 14px 22px; border-radius: var(--v3-radius);
  background: linear-gradient(135deg, var(--v3-accent), var(--v3-accent-alt));
  color: #fff; font-size: 14px; font-weight: 500;
  box-shadow: 0 4px 24px rgba(59,130,246,0.3);
  opacity: 0; transform: translateY(12px);
  transition: all 280ms var(--v3-ease-spring);
  pointer-events: none;
}
.v3-toast.show { opacity: 1; transform: translateY(0); }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .v3-hero { grid-template-columns: 1fr; padding: 48px 24px; }
  .v3-hero-title { font-size: 36px; }
  .v3-feature-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .v3-hero-title { font-size: 28px; }
  .v3-hero-stats { gap: 20px; }
  .v3-hero-stat-val { font-size: 22px; }
  .v3-feature-grid { grid-template-columns: 1fr; }
  .v3-nav { padding: 0 16px; }
  .v3-nav-links { display: none; }
}

/* ── Search in Nav ── */
.v3-nav-search { position: relative; flex: 0 1 300px; margin: 0 16px; }
.v3-nav-search input {
  width: 100%; height: 36px; padding: 0 14px;
  background: var(--v3-surface); border: 1px solid var(--v3-border);
  border-radius: var(--v3-radius-sm); color: var(--v3-text);
  font-size: 14px; font-family: var(--v3-font); outline: none;
  transition: all var(--v3-dur) var(--v3-ease);
}
.v3-nav-search input::placeholder { color: var(--v3-text-tertiary); }
.v3-nav-search input:focus {
  border-color: var(--v3-accent); background: var(--v3-surface-hover);
  box-shadow: 0 0 0 3px var(--v3-accent-glow);
}
.v3-search-results {
  position: absolute; top: calc(100% + 6px); left: 0; right: 0;
  max-height: 360px; overflow-y: auto;
  background: rgba(20,24,32,0.98);
  border: 1px solid var(--v3-border-strong);
  border-radius: var(--v3-radius); box-shadow: var(--v3-shadow-lg);
  display: none; z-index: 110; padding: 6px;
}
.v3-sr-item {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 14px; border-radius: var(--v3-radius-sm);
  font-size: 14px; transition: background 100ms;
}
.v3-sr-item:hover, .v3-sr-item.active { background: var(--v3-surface); }
.v3-sr-code { font-family: var(--v3-mono); font-size: 12px; color: var(--v3-text-tertiary); margin-left: 6px; }
.v3-sr-sector {
  font-size: 11px; color: var(--v3-text-secondary);
  background: var(--v3-surface); padding: 2px 8px; border-radius: 4px;
}

/* ── Heat Bar（全市场涨跌分布）── */
.v3-heat-wrap { position: relative; z-index: 1; max-width: 1200px; margin: 40px auto 0; padding: 0 24px; }
.v3-heat-header { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 8px; }
.v3-heat-bar { display: flex; height: 36px; border-radius: var(--v3-radius); overflow: hidden; border: 1px solid var(--v3-border); background: var(--v3-surface-glass); }
.v3-heat-seg { display: grid; place-items: center; font-family: var(--v3-mono); font-size: 12px; font-weight: 700; color: #fff; transition: flex-grow 600ms var(--v3-ease); min-width: 28px; user-select: none; }
.v3-heat-seg:empty,.v3-heat-seg.zero { flex-grow: 0; min-width: 0; }
.v3-hs-7 { background: linear-gradient(180deg, #10B981, #047857); }  /* >5% */
.v3-hs-6 { background: linear-gradient(180deg, #22C55E, #15803D); }  /* 2-5% */
.v3-hs-5 { background: linear-gradient(180deg, #4ADE80, #16A34A); }  /* 0-2% */
.v3-hs-0 { background: var(--v3-surface-3); color: var(--v3-text-tertiary); }      /* 0% */
.v3-hs-4 { background: linear-gradient(180deg, #FCA5A5, #EF4444); }  /* -0-2% */
.v3-hs-2 { background: linear-gradient(180deg, #EF4444, #DC2626); }  /* -2-5% */
.v3-hs-1 { background: linear-gradient(180deg, #DC2626, #991B1B); }  /* <-5% */
.v3-heat-labels { display: flex; justify-content: space-between; font-family: var(--v3-mono); font-size: 10px; color: var(--v3-text-tertiary); margin-top: 6px; }
.v3-heat-labels span { flex: 1; text-align: center; }
@media (max-width: 640px) { .v3-heat-seg { font-size: 9px; } .v3-heat-labels { font-size: 8px; } }