/* ═══════════════════════════════════════════════════════════════
   Leo Lion One — SaaS Design System
   Style: Glassmorphism + Flat · Tech Startup
   Font: Space Grotesk (heading) + DM Sans (body)
   ═══════════════════════════════════════════════════════════════ */

/* ── Tokens ───────────────────────────────────────────────── */
:root {
  color-scheme: light;
  --primary: #f4811d;
  --primary-hover: #1D4ED8;
  --primary-light: rgba(37, 99, 235, 0.08);
  --secondary: #7C3AED;
  --secondary-hover: #6D28D9;
  --secondary-light: rgba(124, 58, 237, 0.08);
  --accent: #06B6D4;
  --accent-hover: #0891B2;
  --bg: #FAFBFE;
  --bg-alt: #F1F5F9;
  --surface: #FFFFFF;
  --surface-2: #F8FAFC;
  --text: #0F172A;
  --text-secondary: #334155;
  --muted: #64748B;
  --border: #E2E8F0;
  --border-strong: #CBD5E1;
  --ring: rgba(37, 99, 235, 0.4);
  --destructive: #DC2626;
  --success: #059669;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.08);
  --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.1);
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.5);
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --container: 1200px;
  --header-h: 64px;
  --transition: 200ms ease;
  --transition-slow: 300ms ease;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --primary: #f4811d;
  --primary-hover: #93C5FD;
  --primary-light: rgba(96, 165, 250, 0.1);
  --secondary: #A78BFA;
  --secondary-hover: #C4B5FD;
  --secondary-light: rgba(167, 139, 250, 0.1);
  --accent: #22D3EE;
  --accent-hover: #67E8F9;
  --bg: #0A0E1A;
  --bg-alt: #0F1629;
  --surface: #141B2D;
  --surface-2: #1A2340;
  --text: #F1F5F9;
  --text-secondary: #CBD5E1;
  --muted: #94A3B8;
  --border: #1E293B;
  --border-strong: #334155;
  --ring: rgba(96, 165, 250, 0.4);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.4);
  --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.5);
  --glass-bg: rgba(20, 27, 45, 0.75);
  --glass-border: rgba(30, 41, 59, 0.6);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    color-scheme: dark;
    --primary: #f4811d;
    --primary-hover: #93C5FD;
    --primary-light: rgba(96, 165, 250, 0.1);
    --secondary: #A78BFA;
    --secondary-hover: #C4B5FD;
    --secondary-light: rgba(167, 139, 250, 0.1);
    --accent: #22D3EE;
    --accent-hover: #67E8F9;
    --bg: #0A0E1A;
    --bg-alt: #0F1629;
    --surface: #141B2D;
    --surface-2: #1A2340;
    --text: #F1F5F9;
    --text-secondary: #CBD5E1;
    --muted: #94A3B8;
    --border: #1E293B;
    --border-strong: #334155;
    --ring: rgba(96, 165, 250, 0.4);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.5);
    --glass-bg: rgba(20, 27, 45, 0.75);
    --glass-border: rgba(30, 41, 59, 0.6);
  }
}

/* ── Reset ────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  font-family: 'DM Sans', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Space Grotesk', 'DM Sans', 'Noto Sans SC', 'PingFang SC', sans-serif;
  font-weight: 600;
  line-height: 1.2;
  margin: 0;
  color: var(--text);
}

p { margin: 0; }
a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-hover); }
ul, ol { margin: 0; padding: 0; list-style: none; }
img { display: block; max-width: 100%; }
button { font: inherit; cursor: pointer; border: none; background: none; }

/* ── Layout ───────────────────────────────────────────────── */
.site { display: flex; flex-direction: column; min-height: 100vh; }
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.section-alt { background: var(--bg-alt); }

/* ── Header ───────────────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition-slow), border-color var(--transition-slow);
}

.header-inner {
  display: flex;
  align-items: center;
  height: 100%;
  gap: 32px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  flex-shrink: 0;
}

.brand-mark {
  width: auto;
  height: 36px;
  border-radius: 6px;
  object-fit: contain;
}

.brand-copy { display: flex; flex-direction: column; }
.brand-name { font-family: 'Space Grotesk', sans-serif; font-size: 1.05rem; font-weight: 700; line-height: 1.2; }
.brand-tagline { font-size: 0.7rem; color: var(--muted); line-height: 1.2; letter-spacing: 0.02em; }

.header-nav { flex: 1; display: flex; justify-content: center; }
.nav-list { display: flex; gap: 4px; }
.nav-list a {
  display: block;
  padding: 8px 14px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
.nav-list a:hover,
.nav-list a.is-active {
  color: var(--primary);
  background: var(--primary-light);
}

.header-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius);
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary);
  color: #FFFFFF;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
}
.btn-primary:hover {
  background: var(--primary-hover);
  color: #FFFFFF;
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.4);
  transform: translateY(-1px);
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-strong);
}
.btn-secondary:hover {
  background: var(--bg-alt);
  color: var(--text);
  border-color: var(--primary);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 8px 12px;
}
.btn-ghost:hover {
  background: var(--primary-light);
  color: var(--primary);
}

.btn-icon, .icon-btn {
  width: 36px;
  height: 36px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--muted);
  transition: color var(--transition), background var(--transition);
}
.btn-icon:hover, .icon-btn:hover {
  color: var(--primary);
  background: var(--primary-light);
}
.btn-icon svg, .icon-btn svg { width: 20px; height: 20px; stroke-width: 1.8; }

.btn svg { width: 16px; height: 16px; }

.btn-lg { padding: 14px 28px; font-size: 0.95rem; }

/* ── Chain Block Ticker ───────────────────────────────────── */
.chain-ticker {
  position: sticky;
  top: var(--header-h);
  z-index: 90;
}

.chain-ticker-clip {
  overflow: hidden;
  width: 100%;
}

.chain-ticker-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1400px;
  margin: 0 auto;
  padding: 10px 24px;
  gap: 10px;
}

.chain-ticker-item {
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  flex-shrink: 0;
  transition: background 0.3s;
  padding: 5px 10px;
  background: var(--surface);
  border-radius: 20px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}

.chain-ticker-item.is-updated {
  background: rgba(245, 158, 11, 0.12);
}

.chain-ticker-logo {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  object-fit: cover;
}

.chain-ticker-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
}

.chain-ticker-height {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--primary);
  font-family: 'Space Grotesk', monospace;
  transition: color 0.3s;
}

.chain-ticker-item.is-updated .chain-ticker-height {
  color: #f59e0b;
}

@media (max-width: 768px) {
  .chain-ticker-clip {
    overflow: hidden;
    width: 100%;
    max-width: 100%;
  }
  .chain-ticker-inner {
    display: flex;
    padding: 6px 8px;
    gap: 8px;
    justify-content: flex-start;
    overflow: visible;
    width: max-content;
    animation: ticker-scroll 28s linear infinite;
    will-change: transform;
    max-width: none;
    margin: 0;
  }
  .chain-ticker-item {
    padding: 4px 10px;
    gap: 5px;
  }
  .chain-ticker-name { font-size: 0.72rem; }
  .chain-ticker-height { font-size: 0.72rem; }
  .chain-ticker-logo { width: 18px; height: 18px; }
}

@keyframes ticker-scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ── Hero ─────────────────────────────────────────────────── */
.hero {
  padding-top: calc(var(--header-h) + 80px);
  padding-bottom: 96px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.04) 0%, transparent 70%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-content { position: relative; z-index: 1; }

.badge, .hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--primary);
  background: var(--primary-light);
  border: 1px solid rgba(37, 99, 235, 0.15);
  border-radius: 100px;
  margin-bottom: 24px;
}

.badge-dot, .hero-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  animation: pulse-dot 2s ease-in-out infinite;
}

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

.hero h1 {
  font-size: 3.2rem;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero-subtitle, .hero-desc {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 8px;
  max-width: 520px;
}

.hero-subtitle-en, .hero-desc-en {
  font-size: 0.95rem;
  color: var(--muted);
  margin-bottom: 32px;
  max-width: 520px;
}

.hero-actions { display: flex; gap: 12px; margin-bottom: 40px; }

.hero-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  display: inline-block;
  padding: 5px 12px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 100px;
}

/* Hero Visual */
.hero-visual {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 360px;
}

.hero-glow {
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.15) 0%, rgba(124, 58, 237, 0.08) 50%, transparent 70%);
  filter: blur(60px);
  animation: glow-float 6s ease-in-out infinite;
}

@keyframes glow-float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(20px, -20px) scale(1.1); }
}

.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.4;
  border-radius: var(--radius-xl);
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero-visual-card {
  width: 100%;
  max-width: 480px;
  aspect-ratio: 4 / 3;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
}

.hero-visual-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
}

.hero-visual-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.hero-visual-dot:nth-child(1) { background: #EF4444; }
.hero-visual-dot:nth-child(2) { background: #F59E0B; }
.hero-visual-dot:nth-child(3) { background: #22C55E; }

.hero-visual-body {
  flex: 1;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.hero-visual-line {
  height: 10px;
  border-radius: 4px;
  background: var(--bg-alt);
}
.hero-visual-line:nth-child(1) { width: 70%; background: var(--primary-light); }
.hero-visual-line:nth-child(2) { width: 90%; }
.hero-visual-line:nth-child(3) { width: 50%; }
.hero-visual-line:nth-child(4) { width: 80%; background: var(--secondary-light); }
.hero-visual-line:nth-child(5) { width: 60%; }

.hero-visual-floating {
  position: absolute;
  bottom: -20px;
  right: -20px;
  padding: 14px 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8rem;
  font-weight: 500;
}

.hero-visual-floating-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-visual-floating-icon svg { width: 16px; height: 16px; color: #fff; }

/* ── Crypto Bubbles ──────────────────────────────────────── */
.crypto-bubbles {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 2;
  mask-image: linear-gradient(to bottom, transparent 0%, black 15%, black 85%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, transparent 0%, black 15%, black 85%, transparent 100%);
}

.crypto-bubbles:hover .crypto-bubble,
.crypto-bubbles.is-touched .crypto-bubble {
  animation-play-state: paused;
}

.crypto-bubble {
  position: absolute;
  bottom: -140px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 50%;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  animation: bubble-float linear infinite;
  opacity: 0;
  will-change: transform, opacity;
}

.crypto-bubble--lg {
  width: 120px;
  height: 120px;
}

.crypto-bubble--md {
  width: 100px;
  height: 100px;
}

.crypto-bubble--sm {
  width: 85px;
  height: 85px;
}

.crypto-bubble-logo {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
}

.crypto-bubble--sm .crypto-bubble-logo {
  width: 22px;
  height: 22px;
}

.crypto-bubble-symbol {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1;
}

.crypto-bubble-price {
  font-size: 0.6rem;
  font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap;
  line-height: 1;
}

.crypto-bubble-change {
  font-size: 0.55rem;
  font-weight: 600;
  line-height: 1;
}

.crypto-bubble-change.is-up {
  color: #16a34a;
}

.crypto-bubble-change.is-down {
  color: #dc2626;
}

@keyframes bubble-float {
  0% {
    transform: translateY(0) scale(0.6);
    opacity: 0;
  }
  8% {
    opacity: 1;
    transform: translateY(-30px) scale(1);
  }
  92% {
    opacity: 1;
    transform: translateY(-440px) scale(1);
  }
  100% {
    transform: translateY(-500px) scale(0.6);
    opacity: 0;
  }
}

/* ── Section Titles ───────────────────────────────────────── */
.section-header {
  text-align: center;
  margin-bottom: 56px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 12px;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1rem;
  color: var(--muted);
  line-height: 1.7;
}

/* ── Cards ────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: transform var(--transition-slow), box-shadow var(--transition-slow), border-color var(--transition);
}

.card-hover:hover, .card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-strong);
}

.card-flat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  background: var(--primary-light);
  color: var(--primary);
}
.card-icon svg { width: 24px; height: 24px; }

.card-icon-primary { background: var(--primary-light); color: var(--primary); }
.card-icon-secondary, .card-icon--secondary { background: var(--secondary-light); color: var(--secondary); }
.card-icon-accent, .card-icon--accent { background: rgba(6, 182, 212, 0.08); color: var(--accent); }

.card h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.card p {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.6;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
}
.card-link svg { width: 14px; height: 14px; transition: transform var(--transition); }
.card-link:hover svg { transform: translateX(3px); }

.card-tags, .card-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.tag-sm { font-size: 0.7rem; padding: 3px 8px; }

/* Case Bars */
.case-bars { margin-top: 16px; display: flex; flex-direction: column; gap: 10px; }
.case-bar-item { display: flex; align-items: center; gap: 12px; }
.case-bar-label { font-size: 0.75rem; color: var(--muted); min-width: 64px; }
.case-bar-track { flex: 1; height: 6px; background: var(--bg-alt); border-radius: 3px; overflow: hidden; }
.case-bar-fill { height: 100%; background: var(--primary); border-radius: 3px; transition: width 0.6s ease; }

/* Contact Form */
.contact-form { display: flex; flex-direction: column; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 0.8rem; font-weight: 600; color: var(--text-secondary); }
.field input, .field textarea, .field select {
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-alt);
  color: var(--text);
  font-size: 0.9rem;
  transition: border-color var(--transition);
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none;
  border-color: var(--primary);
}
.field textarea { min-height: 120px; resize: vertical; }

/* Section Action */
.section-action { margin-top: 32px; text-align: center; }

/* Grid layouts */
.grid-1 { display: grid; grid-template-columns: 1fr; gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }

/* ── Stats ────────────────────────────────────────────────── */
.stats-grid, .hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 64px;
  padding-top: 48px;
  border-top: 1px solid var(--border);
}

.stat-item {
  text-align: center;
  padding: 24px;
}

.stat-value {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--primary);
  display: inline;
}

.stat-prefix, .stat-suffix {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--primary);
}

.stat-label {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 6px;
}

/* ── Process / Steps ──────────────────────────────────────── */
.process-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.process-item, .process-step {
  padding: 28px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  position: relative;
}

.process-number, .process-num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--border-strong);
  margin-bottom: 12px;
  line-height: 1;
}

.process-item h3, .process-step h3, .process-title {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.process-item p, .process-step p, .process-desc {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.6;
}

/* ── Feature List ─────────────────────────────────────────── */
.feature-list { display: flex; flex-direction: column; gap: 16px; }

.feature-icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  color: var(--primary);
}
.feature-icon svg { width: 22px; height: 22px; }

.feature-title { font-size: 1.05rem; margin-bottom: 4px; }
.feature-desc { font-size: 0.875rem; color: var(--muted); line-height: 1.6; }
.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
}

.feature-check {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  border-radius: 50%;
  background: rgba(5, 150, 105, 0.1);
  color: var(--success);
  display: flex;
  align-items: center;
  justify-content: center;
}
.feature-check svg { width: 14px; height: 14px; }

.feature-item h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.feature-item p {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.5;
}

/* ── Case Cards ───────────────────────────────────────────── */
.case-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: transform var(--transition-slow), box-shadow var(--transition-slow);
}

.case-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.case-type {
  display: inline-block;
  padding: 4px 10px;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--secondary);
  background: var(--secondary-light);
  border-radius: 100px;
  margin-bottom: 14px;
}

.case-card h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
}

.case-card p {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 16px;
}

.case-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.case-stack span {
  padding: 3px 8px;
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--muted);
  background: var(--bg-alt);
  border-radius: 4px;
}

/* ── CTA Section ──────────────────────────────────────────── */
.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  border-radius: var(--radius-xl);
  padding: 64px;
  text-align: center;
  color: #FFFFFF;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='30' cy='30' r='1' fill='rgba(255,255,255,0.1)'/%3E%3C/svg%3E");
  pointer-events: none;
}

.cta-section h2 {
  font-size: 2rem;
  color: #FFFFFF;
  margin-bottom: 12px;
  position: relative;
}

.cta-section p {
  font-size: 1rem;
  opacity: 0.9;
  margin-bottom: 32px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
}

.cta-section .btn-primary {
  background: #FFFFFF;
  color: var(--primary);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}
.cta-section .btn-primary:hover {
  background: #F8FAFC;
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.2);
}

.cta-section .btn-secondary {
  border-color: rgba(255, 255, 255, 0.4);
  color: #FFFFFF;
}
.cta-section .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.6);
}

.cta-actions { display: flex; gap: 12px; justify-content: center; position: relative; }

/* ── Footer ───────────────────────────────────────────────── */
.site-footer {
  padding: 64px 0 32px;
  border-top: 1px solid var(--border);
  background: var(--surface);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand { max-width: 280px; }
.footer-brand .brand { margin-bottom: 16px; }
.footer-brand p { font-size: 0.85rem; color: var(--muted); line-height: 1.6; }

.footer-col h4, .footer-links h4 {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.footer-col a, .footer-links a {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  padding: 4px 0;
  transition: color var(--transition);
}
.footer-col a:hover, .footer-links a:hover { color: var(--primary); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--muted);
}

/* ── Theme Toggle ─────────────────────────────────────────── */
.theme-toggle {
  display: flex;
  align-items: center;
  background: var(--bg-alt);
  border-radius: 100px;
  padding: 3px;
  gap: 2px;
}

.theme-toggle .btn-icon,
.theme-toggle .icon-btn {
  width: 30px;
  height: 30px;
  border-radius: 50%;
}
.theme-toggle .btn-icon.is-active,
.theme-toggle .icon-btn.is-active {
  background: var(--surface);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

/* ── Mobile Toggle ────────────────────────────────────────── */
.mobile-toggle { display: none; }

/* ── Overlay / Modals ─────────────────────────────────────── */
.overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-slow);
}
.overlay.is-open {
  opacity: 1;
  pointer-events: auto;
}

.modal-panel, .modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 32px;
  width: 90%;
  max-width: 440px;
  box-shadow: var(--shadow-xl);
  transform: translateY(20px) scale(0.96);
  transition: transform var(--transition-slow);
}
.overlay.is-open .modal-panel,
.overlay.is-open .modal {
  transform: translateY(0) scale(1);
}

.modal-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 24px;
}

.modal-head h2 { font-size: 1.2rem; }
.modal-head p { font-size: 0.85rem; color: var(--muted); margin-top: 4px; }

/* Language Modal */
.language-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.language-option {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-align: left;
  transition: border-color var(--transition), background var(--transition);
}
.language-option strong { font-size: 0.9rem; }
.language-option span { font-size: 0.75rem; color: var(--muted); }
.language-option:hover { border-color: var(--primary); background: var(--primary-light); }
.language-option.is-active { border-color: var(--primary); background: var(--primary-light); }

/* Service Modal */
.service-modal {
  max-width: 880px;
  padding: 32px;
  max-height: 90vh;
  overflow-y: auto;
}

.service-modal-body {
  max-height: none;
  overflow-y: visible;
}

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

.service-modal-sub {
  font-size: 0.95rem;
  font-weight: 600;
  margin: 24px 0 12px;
  color: var(--primary);
}

.service-modal .detail-feature-list { margin-top: 0; }

.service-modal-applicable {
  background: var(--primary-light);
  border-radius: var(--radius);
  padding: 14px 16px;
}
.service-modal-applicable p { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.6; }

.service-modal-actions {
  display: flex;
  gap: 12px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

[data-service-id] { cursor: pointer; }

@media (max-width: 480px) {
  .service-modal { padding: 20px; max-height: 86vh; }
  .service-modal-actions { flex-direction: column; }
  .service-modal-actions .btn { width: 100%; }
}

/* ── Mobile Drawer ────────────────────────────────────────── */
.drawer-panel, .drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 300px;
  max-width: 85vw;
  background: var(--surface);
  border-left: 1px solid var(--border);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  z-index: 201;
}
.overlay.is-open .drawer-panel,
.overlay.is-open .drawer {
  transform: translateX(0);
}

.drawer-links { display: flex; flex-direction: column; gap: 4px; }
.drawer-links a {
  display: block;
  padding: 12px 16px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
}
.drawer-links a:hover { background: var(--primary-light); color: var(--primary); }
.drawer-links a.is-active { color: var(--primary); background: var(--primary-light); font-weight: 600; }

.drawer-actions {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* ── Animations ───────────────────────────────────────────── */
.fade-up, .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.fade-up.is-visible, .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Page content offset ──────────────────────────────────── */
.site-main { flex: 1; margin-top: var(--header-h); }
.hero { margin-top: calc(-1 * var(--header-h)); }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-visual { display: none; }
  .hero h1 { font-size: 2.6rem; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .stats-grid, .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  .container { padding: 0 16px; }
  .section { padding: 64px 0; }
  .header-nav { display: none; }
  .header-actions .theme-toggle,
  .header-actions > [data-language-open],
  .header-actions > .btn-primary,
  .header-actions > a.btn { display: none; }
  .header-actions { margin-left: auto; padding-right: 0; }
  .header-inner { justify-content: space-between; }
  .mobile-toggle { display: inline-flex; }
  .hero { padding-top: calc(var(--header-h) + 48px); padding-bottom: 64px; }
  .hero h1 { font-size: 2rem; }
  .hero-subtitle, .hero-desc { font-size: 1rem; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { justify-content: center; }
  .section-title { font-size: 1.7rem; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr; }
  .stats-grid, .hero-stats { grid-template-columns: 1fr 1fr; }
  .process-grid { grid-template-columns: 1fr; }
  .cta-section { padding: 40px 24px; border-radius: var(--radius-lg); }
  .cta-actions { flex-direction: column; align-items: center; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.7rem; }
  .stats-grid, .hero-stats { grid-template-columns: 1fr; }
  .stat-value { font-size: 2rem; }
  .language-grid { grid-template-columns: 1fr; }
}

/* ── Back to Top ─────────────────────────────────────────── */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity var(--transition), visibility var(--transition), transform var(--transition);
  z-index: 100;
}
.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
}
.back-to-top svg { width: 20px; height: 20px; }

/* ── Contact Cards ───────────────────────────────────────── */
.contact-channels {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 720px;
  margin: 0 auto;
}
.contact-card {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: var(--text);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.contact-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
  color: var(--text);
}
.contact-card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-card-icon svg { width: 28px; height: 28px; }
.contact-card-icon--telegram { background: rgba(0, 136, 204, 0.12); color: #0088cc; }
.contact-card-icon--wechat { background: rgba(7, 193, 96, 0.12); color: #07C160; }

button.contact-card {
  width: 100%;
  text-align: left;
  font: inherit;
  color: inherit;
  cursor: pointer;
}

.contact-card-body h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 6px;
}
.contact-card-body p {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.5;
  margin-bottom: 12px;
}
.contact-card-action {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
}

@media (max-width: 640px) {
  .contact-channels { grid-template-columns: 1fr; }
  .contact-card { padding: 20px; gap: 16px; }
}

@media (max-width: 900px) {
  .contact-channels { grid-template-columns: 1fr; max-width: 560px; }
}

/* WeChat Modal */
.wechat-modal { max-width: 420px; }
.wechat-modal-body { text-align: center; }
.wechat-qr-img {
  width: 100%;
  max-width: 300px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: #fff;
  padding: 8px;
}
.wechat-modal-name { margin-top: 14px; font-weight: 600; font-size: 0.95rem; }
.wechat-modal-tip { margin-top: 6px; font-size: 0.8rem; color: var(--muted); }

.footer-links button.footer-link-btn {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  padding: 4px 0;
  background: none;
  border: none;
  font-family: inherit;
  text-align: left;
  cursor: pointer;
  transition: color var(--transition);
}
.footer-links button.footer-link-btn:hover { color: var(--primary); }

@media (max-width: 768px) {
  .back-to-top { bottom: 20px; right: 20px; width: 40px; height: 40px; }
}

/* ── Cases Grid Card ─────────────────────────────────────── */
.case-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}
.case-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.case-card-img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  display: block;
  background: var(--bg-alt);
}
.case-card-body { padding: 20px; }
.case-card-body h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}
.case-card-body p {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.case-card-body .btn { width: 100%; justify-content: center; }

.cases-empty { text-align: center; padding: 64px 24px; }

/* ── Detail Page ─────────────────────────────────────────── */
.detail-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 32px;
}
.detail-title {
  font-size: 2rem;
  margin-bottom: 32px;
}
.detail-desc {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-top: 32px;
  white-space: pre-wrap;
}

.detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: -16px;
  margin-bottom: 28px;
}
.detail-chain {
  color: var(--primary);
  background: var(--primary-light);
  border-color: transparent;
  font-weight: 600;
}

.detail-block { margin-top: 40px; }
.detail-block h2 { font-size: 1.3rem; margin-bottom: 16px; }

.detail-feature-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.detail-feature-list .feature-item { align-items: center; }
.detail-feature-list .feature-item p { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.5; }
@media (max-width: 768px) {
  .detail-feature-list { grid-template-columns: 1fr; }
  .detail-meta { margin-top: -8px; }
}

/* ── Carousel ────────────────────────────────────────────── */
.carousel {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-alt);
}
.carousel-track {
  display: flex;
  transition: transform 400ms ease;
}
.carousel-track img {
  width: 100%;
  flex-shrink: 0;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}
.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(0,0,0,0.5);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
  z-index: 2;
}
.carousel-btn:hover { background: rgba(0,0,0,0.7); }
.carousel-prev { left: 12px; }
.carousel-next { right: 12px; }
.carousel-dots {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
}
.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  border: none;
  cursor: pointer;
  transition: background var(--transition);
}
.carousel-dot.is-active { background: #fff; }

@media (max-width: 768px) {
  .detail-title { font-size: 1.5rem; }
  .detail-nav { flex-direction: column; align-items: flex-start; }
  .carousel-btn { width: 32px; height: 32px; }
}

/* ═══════════════════════════════════════════════════════════
   Mobile Optimization（手机端显示优化）
   ═══════════════════════════════════════════════════════════ */
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body { -webkit-tap-highlight-color: transparent; }

@media (max-width: 768px) {
  :root { --header-h: 56px; }

  /* Header：更紧凑的移动端头部 */
  .header-inner { gap: 12px; }
  .brand { gap: 8px; }
  .brand-mark { height: 32px; }
  .brand-name { font-size: 1rem; }
  .brand-tagline { font-size: 0.65rem; }

  /* Hero */
  .hero { padding-top: calc(var(--header-h) + 40px); padding-bottom: 56px; }
  .hero h1 { font-size: clamp(1.75rem, 6.5vw, 2.2rem); letter-spacing: -0.01em; }
  .badge, .hero-badge { margin-bottom: 16px; padding: 5px 12px; }
  .hero-subtitle, .hero-desc { font-size: 0.95rem; margin-bottom: 24px; }
  .hero-subtitle-en, .hero-desc-en { margin-bottom: 24px; }
  .hero-actions { gap: 10px; margin-bottom: 28px; }
  .hero-actions .btn { width: 100%; }
  .hero-actions .btn-lg { padding: 13px 20px; font-size: 0.9rem; }
  .hero-tags { gap: 6px; }
  .tag { font-size: 0.7rem; padding: 4px 10px; }

  /* 区块通用 */
  .section { padding: 56px 0; }
  .section-header { margin-bottom: 32px; }
  .section-title { font-size: 1.5rem; }
  .section-desc { font-size: 0.9rem; }
  .section-action { margin-top: 24px; }

  /* 卡片 */
  .card { padding: 20px; }
  .card-flat { padding: 18px; }
  .card h3 { font-size: 1.1rem; }
  .card-icon { width: 44px; height: 44px; margin-bottom: 16px; }

  /* 特性列表 */
  .feature-item { padding: 16px; gap: 12px; }
  .feature-icon { width: 40px; height: 40px; }
  .feature-icon svg { width: 20px; height: 20px; }

  /* 流程 */
  .process-grid { gap: 14px; }
  .process-item, .process-step { padding: 20px; }
  .process-number, .process-num { font-size: 2rem; margin-bottom: 8px; }

  /* 数据统计 */
  .stats-grid, .hero-stats { margin-top: 40px; padding-top: 32px; gap: 12px; }
  .stat-item { padding: 14px 8px; }
  .stat-value, .stat-prefix, .stat-suffix { font-size: 1.9rem; }
  .stat-label { font-size: 0.78rem; }

  /* CTA */
  .cta-section { padding: 40px 20px; }
  .cta-section h2 { font-size: 1.5rem; }
  .cta-section p { margin-bottom: 24px; }
  .cta-actions { gap: 10px; }
  .cta-actions .btn { width: 100%; max-width: 320px; }

  /* Footer：品牌占整行，链接两列更紧凑 */
  .site-footer { padding: 48px 0 calc(24px + env(safe-area-inset-bottom)); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px 20px; margin-bottom: 32px; }
  .footer-brand { grid-column: 1 / -1; max-width: none; }

  /* 链上跑马灯 */
  .chain-ticker-inner { padding: 8px; }

  /* 弹窗与抽屉：适配刘海屏安全区 */
  .modal, .modal-panel {
    padding: 24px;
    width: calc(100% - 32px);
    max-height: 85vh;
    overflow-y: auto;
  }
  .drawer {
    width: min(320px, 88vw);
    padding: 20px;
    padding-top: calc(20px + env(safe-area-inset-top));
    padding-bottom: calc(24px + env(safe-area-inset-bottom));
  }
  .drawer-links a { padding: 12px 14px; }

  /* 表单：16px 字号避免 iOS 聚焦时页面缩放 */
  .field input, .field textarea, .field select { font-size: 16px; }

  /* 案例卡片 */
  .case-card { padding: 20px; }
  .case-card-body { padding: 16px; }

  /* 回到顶部：避开手势条 */
  .back-to-top {
    bottom: calc(16px + env(safe-area-inset-bottom));
    right: 16px;
    width: 42px;
    height: 42px;
  }
}

@media (max-width: 480px) {
  /* 统计保持两列，进一步缩小字号 */
  .stats-grid, .hero-stats { grid-template-columns: 1fr 1fr; }
  .stat-value, .stat-prefix, .stat-suffix { font-size: 1.6rem; }
  .stat-label { font-size: 0.72rem; }

  .section { padding: 48px 0; }
  .section-title { font-size: 1.35rem; }
  .cta-section h2 { font-size: 1.35rem; }
  .detail-title { font-size: 1.4rem; }
}

@media (max-width: 360px) {
  .brand-tagline { display: none; }
  .hero h1 { font-size: 1.6rem; }
  .stat-value, .stat-prefix, .stat-suffix { font-size: 1.4rem; }
}

/* ── Reduced Motion ───────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}