:root {
  --bg: #F8FAFC;
  --bg-elevated: #FFFFFF;
  --bg-subtle: #F1F5F9;
  --text: #0F172A;
  --text-muted: #475569;
  --text-soft: #64748B;
  --border: #E2E8F0;
  --border-strong: #CBD5E1;
  --primary: #0284C7;
  --primary-hover: #0369A1;
  --primary-soft: rgba(2, 132, 199, 0.10);
  --accent: #10B981;
  --accent-hover: #059669;
  --accent-soft: rgba(16, 185, 129, 0.12);
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 12px 32px -12px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 22px 48px -16px rgba(2, 132, 199, 0.16);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --nav-bg: rgba(248, 250, 252, 0.88);
}
[data-theme="dark"] {
  --bg: #0B1120;
  --bg-elevated: #111827;
  --bg-subtle: #1E293B;
  --text: #F8FAFC;
  --text-muted: #CBD5E1;
  --text-soft: #94A3B8;
  --border: rgba(148, 163, 184, 0.16);
  --border-strong: rgba(148, 163, 184, 0.28);
  --primary: #38BDF8;
  --primary-hover: #0EA5E9;
  --primary-soft: rgba(56, 189, 248, 0.14);
  --accent: #34D399;
  --accent-hover: #10B981;
  --accent-soft: rgba(52, 211, 153, 0.14);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 12px 32px -12px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 24px 52px -16px rgba(0, 0, 0, 0.65);
  --nav-bg: rgba(11, 17, 32, 0.88);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color 0.25s ease, color 0.25s ease;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--nav-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 64px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}
.brand img {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  box-shadow: var(--shadow-sm);
}
.brand-tag {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-muted);
}
.nav-links a:hover,
.nav-links a.active { color: var(--primary); }
.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
.ctrl-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 34px;
  padding: 0 12px;
  border-radius: 9px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.2s ease, background-color 0.2s ease, transform 0.15s ease;
}
.ctrl-btn:hover {
  border-color: var(--primary);
  background: var(--bg-subtle);
}
.ctrl-btn svg { width: 16px; height: 16px; }
/* Hero Section — 1440x900 & Mobile Above-the-Fold */
.hero {
  padding: 36px 0 56px;
  border-bottom: 1px solid var(--border);
  background-image: radial-gradient(rgba(2, 132, 199, 0.08) 1px, transparent 1px);
  background-size: 24px 24px;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
  gap: 44px;
  align-items: center;
  min-height: calc(100vh - 140px);
  max-height: 760px;
}
.hero-left {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-hover);
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 16px;
  border: 1px solid rgba(16, 185, 129, 0.24);
}
[data-theme="dark"] .hero-badge { color: var(--accent); }
.hero-badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
}
.hero h1 {
  margin: 0 0 14px;
  font-size: clamp(2rem, 3.6vw, 3.15rem);
  font-weight: 850;
  line-height: 1.14;
  letter-spacing: -0.03em;
}
.hero-accent { color: var(--primary); }
.hero-desc {
  margin: 0 0 24px;
  font-size: 1.04rem;
  color: var(--text-muted);
  max-width: 560px;
}
/* First-Screen Three-Store Download Dock */
.store-dock {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  width: 100%;
  margin-bottom: 24px;
}
.dock-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 16px;
  border-radius: 14px;
  border: 1.5px solid var(--border-strong);
  background: var(--bg-elevated);
  transition: transform 0.15s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.15s cubic-bezier(0.22, 1, 0.36, 1), background-color 0.2s ease, border-color 0.2s ease;
}
.dock-btn-live {
  flex-direction: column;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  color: #FFFFFF;
  padding: 15px 18px;
}
.dock-head {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
}
.dock-btn-ios {
  background: #0F172A;
  border-color: #020617;
  box-shadow: 0 6px 0 #020617, 0 16px 32px -8px rgba(15, 23, 42, 0.36);
}
[data-theme="dark"] .dock-btn-ios {
  background: #1D4ED8;
  border-color: #1E40AF;
  box-shadow: 0 6px 0 #1E3A8A, 0 16px 32px -8px rgba(29, 78, 216, 0.42);
}
.dock-btn-ios:hover {
  background: #1E293B;
  transform: translateY(-2px);
  box-shadow: 0 8px 0 #020617, 0 20px 36px -8px rgba(15, 23, 42, 0.42);
}
[data-theme="dark"] .dock-btn-ios:hover {
  background: #2563EB;
  box-shadow: 0 8px 0 #1E3A8A, 0 20px 36px -8px rgba(37, 99, 235, 0.48);
}
.dock-btn-ios:active {
  transform: translateY(4px);
  box-shadow: 0 2px 0 #020617, 0 6px 14px -4px rgba(15, 23, 42, 0.32);
}
.dock-btn-android {
  background: #0284C7;
  border-color: #0369A1;
  box-shadow: 0 6px 0 #0369A1, 0 16px 32px -8px rgba(2, 132, 199, 0.38);
}
.dock-btn-android:hover {
  background: #0369A1;
  transform: translateY(-2px);
  box-shadow: 0 8px 0 #075985, 0 20px 36px -8px rgba(2, 132, 199, 0.44);
}
.dock-btn-android:active {
  transform: translateY(4px);
  box-shadow: 0 2px 0 #075985, 0 6px 14px -4px rgba(2, 132, 199, 0.32);
}
.dock-btn-soon {
  grid-column: 1 / -1;
  cursor: pointer;
  background: var(--bg-elevated);
  box-shadow: 0 5px 0 #CBD5E1, 0 10px 22px -10px rgba(15, 23, 42, 0.12);
}
[data-theme="dark"] .dock-btn-soon {
  border-color: #334155;
  box-shadow: 0 5px 0 #334155, 0 12px 24px -10px rgba(0, 0, 0, 0.5);
}
.dock-btn-soon:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 7px 0 #94A3B8, 0 14px 26px -10px rgba(2, 132, 199, 0.18);
}
[data-theme="dark"] .dock-btn-soon:hover { box-shadow: 0 7px 0 #475569, 0 14px 26px -10px rgba(56, 189, 248, 0.22); }
.dock-btn-soon:active {
  transform: translateY(3px);
  box-shadow: 0 2px 0 #94A3B8, 0 4px 10px -4px rgba(15, 23, 42, 0.12);
}
.dock-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  flex-shrink: 0;
  background: rgba(255, 255, 255, 0.18);
}
.dock-btn-soon .dock-icon {
  background: var(--bg-subtle);
  color: var(--text);
}
.dock-text {
  display: flex;
  flex-direction: column;
  flex: 1;
}
.dock-text strong {
  font-size: 0.96rem;
  font-weight: 800;
  line-height: 1.25;
}
.dock-text small {
  font-size: 0.78rem;
  opacity: 0.92;
  line-height: 1.35;
}
.dock-btn-soon .dock-text small { color: var(--text-soft); opacity: 1; }
.dock-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.74rem;
  font-weight: 800;
  padding: 5px 11px;
  border-radius: 999px;
  flex-shrink: 0;
}
.dock-pill-live {
  background: rgba(16, 185, 129, 0.22);
  border: 1px solid rgba(52, 211, 153, 0.65);
  color: #ECFDF5;
}
.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10B981;
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.75);
  animation: pulseLiveDot 1.8s infinite;
}
@keyframes pulseLiveDot {
  0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.75); }
  70% { box-shadow: 0 0 0 7px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}
.dock-pill-soon {
  background: var(--bg-subtle);
  color: var(--text-muted);
  border: 1px solid var(--border);
}
/* Hero Modular Blocks */
.hero-blocks {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  width: 100%;
}
.hero-block {
  padding: 12px 14px;
  border-radius: 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.hero-block:hover {
  transform: translateY(-2px);
  border-color: var(--primary);
}
.block-kicker {
  display: block;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--primary);
  margin-bottom: 2px;
}
.hero-block strong {
  font-size: 0.86rem;
  font-weight: 700;
}
/* Hero Right 40%: Skew Backdrop + 1 Device Shot + 2 Floating Milestone Cards */
.hero-right {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px 16px;
}
.hero-skew-plate {
  position: absolute;
  inset: 14% 6% 10% 6%;
  background: var(--primary-soft);
  border: 1px solid rgba(2, 132, 199, 0.20);
  border-radius: 28px;
  transform: skewY(-5deg);
  z-index: 0;
}
.hero-skew-accent {
  position: absolute;
  width: 68%;
  height: 54%;
  right: 2%;
  bottom: 6%;
  background: var(--accent-soft);
  border-radius: 24px;
  transform: skewY(4deg);
  z-index: 0;
}
.hero-device {
  position: relative;
  z-index: 2;
  width: 248px;
  border-radius: 28px;
  padding: 8px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-lg);
}
.device-notch {
  width: 64px;
  height: 5px;
  border-radius: 999px;
  background: var(--border-strong);
  margin: 2px auto 8px;
}
.hero-device img {
  width: 100%;
  border-radius: 20px;
  aspect-ratio: 9 / 19;
  object-fit: cover;
}
/* Floating Bounty Milestone Cards */
.float-card {
  position: absolute;
  z-index: 3;
  width: 215px;
  padding: 12px 14px;
  border-radius: 14px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
}
.float-card-top {
  top: 22px;
  right: -8px;
  animation: floatSlowA 5.5s ease-in-out infinite;
}
.float-card-bottom {
  bottom: 24px;
  left: -8px;
  animation: floatSlowB 6.2s ease-in-out infinite;
}
@keyframes floatSlowA {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
@keyframes floatSlowB {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(7px); }
}
.float-card-head {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 5px;
}
.float-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}
.float-dot-blue { background: var(--primary); }
.float-tag {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-soft);
}
.float-title {
  display: block;
  font-size: 0.86rem;
  font-weight: 700;
  margin-bottom: 6px;
  line-height: 1.3;
}
.float-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-size: 0.74rem;
}
.float-amount {
  font-weight: 800;
  color: var(--accent-hover);
}
[data-theme="dark"] .float-amount { color: var(--accent); }
.float-stage {
  color: var(--primary);
  font-weight: 600;
}
.float-progress {
  width: 100%;
  height: 5px;
  border-radius: 999px;
  background: var(--bg-subtle);
  overflow: hidden;
  margin-bottom: 6px;
}
.float-progress-bar {
  width: 96%;
  height: 100%;
  border-radius: 999px;
  background: var(--primary);
}
/* Sections */
.section { padding: 68px 0; }
.section-bento { background: var(--bg-subtle); border-bottom: 1px solid var(--border); }
.section-header {
  max-width: 680px;
  margin-bottom: 36px;
}
.section-eyebrow {
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 6px;
}
.section-title {
  margin: 0 0 10px;
  font-size: clamp(1.5rem, 2.6vw, 2.15rem);
  font-weight: 800;
  letter-spacing: -0.025em;
}
.section-subtitle {
  margin: 0;
  font-size: 0.98rem;
  color: var(--text-muted);
}
/* Nordic Modular Bento Grid */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.bento-card {
  padding: 24px;
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}
.bento-wide { grid-column: span 2; }
.bento-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}
.bento-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.bento-index {
  font-size: 0.82rem;
  font-weight: 800;
  color: var(--text-soft);
  padding: 4px 10px;
  border-radius: 8px;
  background: var(--bg-subtle);
}
.bento-badge {
  font-size: 0.74rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary);
}
.bento-badge-mint {
  background: var(--accent-soft);
  color: var(--accent-hover);
}
[data-theme="dark"] .bento-badge-mint { color: var(--accent); }
.bento-card h3 {
  margin: 0 0 8px;
  font-size: 1.15rem;
  font-weight: 750;
}
.bento-card p {
  margin: 0;
  font-size: 0.94rem;
  color: var(--text-muted);
}
/* Interactive Dual-Mode Role Switcher */
.role-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 28px;
}
.role-switcher {
  display: inline-flex;
  padding: 5px;
  border-radius: 14px;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  gap: 6px;
}
.role-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border: none;
  border-radius: 10px;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 700;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}
.role-tab-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border-strong);
  transition: background-color 0.2s ease;
}
.role-tab.is-active {
  background: var(--bg-elevated);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}
.role-tab.is-active .role-tab-dot { background: var(--accent); }
.role-steps-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 34px;
}
.step-card {
  padding: 20px;
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.step-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
}
.step-num {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--primary);
  margin-bottom: 8px;
}
.step-card h3 {
  margin: 0 0 6px;
  font-size: 1rem;
  font-weight: 750;
}
.step-card p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--text-muted);
}
.is-animating { animation: roleFadeSlide 0.34s cubic-bezier(0.22, 1, 0.36, 1); }
@keyframes roleFadeSlide {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
.gallery-header-inline { margin-bottom: 16px; }
.gallery-note {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-soft);
}
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}
.shot-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}
.shot-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}
.shot-frame {
  padding: 12px 12px 0;
  background: var(--bg-subtle);
}
.shot-frame img {
  width: 100%;
  border-radius: 12px 12px 0 0;
  aspect-ratio: 9 / 19;
  object-fit: cover;
}
.shot-caption { padding: 14px 16px; }
.shot-caption strong { display: block; font-size: 0.94rem; margin-bottom: 4px; }
.shot-caption span { font-size: 0.82rem; color: var(--text-soft); }
/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, 0.82);
  backdrop-filter: blur(8px);
  padding: 24px;
}
.lightbox.open { display: flex; }
.lightbox-content {
  position: relative;
  max-width: 420px;
  width: 100%;
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  padding: 14px;
  border: 1px solid var(--border);
}
.lightbox-content img {
  width: 100%;
  border-radius: 16px;
}
.lightbox-close {
  position: absolute;
  top: -14px;
  right: -14px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: var(--bg-elevated);
  color: var(--text);
  font-size: 1.25rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: var(--shadow-md);
}
/* Legal / Document Pages (privacy.html, terms.html, support.html) */
.doc-hero {
  padding: 48px 0 28px;
  border-bottom: 1px solid var(--border);
}
.doc-hero h1 {
  margin: 0 0 10px;
  font-size: clamp(1.75rem, 3vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}
.doc-meta { font-size: 0.9rem; color: var(--text-soft); }
.doc-layout {
  padding: 40px 0 72px;
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 36px;
  align-items: start;
}
.doc-toc {
  position: sticky;
  top: 86px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px;
}
.doc-toc-title {
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-soft);
  margin-bottom: 12px;
}
.doc-toc a { display: block; padding: 6px 0; font-size: 0.88rem; color: var(--text-muted); }
.doc-toc a:hover { color: var(--primary); }
.doc-body {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}
.doc-body h2 {
  margin: 28px 0 12px;
  font-size: 1.24rem;
  font-weight: 700;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}
.doc-body h2:first-child { margin-top: 0; padding-top: 0; border-top: none; }
.doc-body p, .doc-body li { color: var(--text-muted); font-size: 0.96rem; }
.doc-body ul { padding-left: 20px; }
.callout-box {
  margin: 18px 0;
  padding: 16px 18px;
  border-radius: var(--radius-sm);
  background: var(--primary-soft);
  border-left: 4px solid var(--primary);
}
.callout-box strong { display: block; margin-bottom: 4px; color: var(--text); }
.support-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 20px;
}
.support-card {
  padding: 20px;
  border-radius: var(--radius-md);
  background: var(--bg-subtle);
  border: 1px solid var(--border);
}
.support-card h3 { margin: 0 0 8px; font-size: 1.04rem; }
.support-card a.mail-link { color: var(--primary); font-weight: 600; word-break: break-all; }
/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  background: var(--bg-elevated);
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-muted);
}
.footer-brand img { width: 26px; height: 26px; border-radius: 7px; }
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 0.9rem;
  color: var(--text-muted);
}
.footer-links a:hover { color: var(--primary); }
/* Language Visibility */
[data-lang="en"] .lang-zh,
[data-lang="zh"] .lang-en { display: none !important; }
/* Accessibility: Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  .float-card-top, .float-card-bottom, .is-animating, .pulse-dot { animation: none !important; }
}
/* Responsive */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    min-height: auto;
    max-height: none;
    gap: 32px;
  }
  .store-dock { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .bento-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .bento-wide { grid-column: span 2; }
  .role-steps-grid, .gallery-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .doc-layout { grid-template-columns: 1fr; }
  .doc-toc { position: static; }
}
@media (max-width: 640px) {
  .nav-links { display: none; }
  .hero { padding: 24px 0 36px; }
  .hero h1 { font-size: 1.75rem; }
  .hero-desc { font-size: 0.94rem; margin-bottom: 18px; }
  .store-dock { grid-template-columns: 1fr; gap: 12px; margin-bottom: 20px; }
  .dock-btn-live { flex-wrap: wrap; }
  .hero-blocks { grid-template-columns: 1fr; gap: 8px; }
  .float-card { width: 175px; padding: 10px 12px; }
  .float-card-top { top: 8px; right: 0; }
  .float-card-bottom { bottom: 8px; left: 0; }
  .bento-grid, .role-steps-grid, .gallery-grid, .support-grid { grid-template-columns: 1fr; }
  .bento-wide { grid-column: span 1; }
  .role-switcher { width: 100%; }
  .role-tab { flex: 1; justify-content: center; padding: 9px 10px; font-size: 0.85rem; }
  .doc-body { padding: 22px 18px; }
}