/* ============================================
   AI妆盒 - 高端美妆官方网站样式
   主色调: #F3BA8F
   ============================================ */

/* ---------- CSS Variables ---------- */
:root {
  --primary: #F3BA8F;
  --primary-light: #F7D4B5;
  --primary-dark: #D4975E;
  --primary-glow: rgba(243, 186, 143, 0.3);
  --primary-subtle: rgba(243, 186, 143, 0.08);

  --bg-dark: #0A0A0A;
  --bg-section: #111111;
  --bg-card: #1A1A1A;
  --bg-card-hover: #222222;

  --text-primary: #FFFFFF;
  --text-secondary: rgba(255, 255, 255, 0.7);
  --text-muted: rgba(255, 255, 255, 0.4);
  --text-dark: #1A1A1A;

  --border-color: rgba(255, 255, 255, 0.08);
  --border-light: rgba(243, 186, 143, 0.2);

  --font-display: 'Playfair Display', 'Noto Serif SC', serif;
  --font-serif: 'Noto Serif SC', serif;
  --font-sans: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;

  --transition: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-fast: 0.25s ease;
  --transition-slow: 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 64px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 40px rgba(243, 186, 143, 0.15);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition-fast);
}

ul { list-style: none; }

img {
  max-width: 100%;
  display: block;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
}

/* ---------- Navigation ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 12px 0;
  border-bottom: 1px solid var(--border-color);
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 1001;
}

.logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 12px;
  font-weight: 700;
  font-size: 14px;
  color: #000;
  letter-spacing: 1px;
}

.logo-text {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  color: var(--text-primary);
}

.logo-img {
  height: 40px;
  width: auto;
  object-fit: contain;
  border-radius: 50%;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-link {
  font-size: 14px;
  font-weight: 400;
  color: var(--text-secondary);
  position: relative;
  padding: 4px 0;
  letter-spacing: 0.5px;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--primary);
  transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-btn {
  font-size: 13px;
  font-weight: 500;
  padding: 10px 22px;
  border-radius: 100px;
  transition: var(--transition);
  letter-spacing: 0.3px;
}

.nav-btn-outline {
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
}

.nav-btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.nav-btn-primary {
  background: var(--primary);
  color: #000;
}

.nav-btn-primary:hover {
  background: var(--primary-light);
  box-shadow: var(--shadow-glow);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 1001;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition-fast);
  border-radius: 2px;
}

/* ---------- Hero Section ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 40%, rgba(243, 186, 143, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 20% 80%, rgba(243, 186, 143, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse 50% 40% at 80% 20%, rgba(212, 151, 94, 0.08) 0%, transparent 50%);
}

.hero-particles {
  position: absolute;
  inset: 0;
}

.hero-particle {
  position: absolute;
  width: 3px;
  height: 3px;
  background: var(--primary);
  border-radius: 50%;
  opacity: 0;
  animation: particleFloat 6s ease-in-out infinite;
}

@keyframes particleFloat {
  0%, 100% { opacity: 0; transform: translateY(0) scale(0); }
  50% { opacity: 0.6; transform: translateY(-80px) scale(1); }
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
  padding: 0 40px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  border: 1px solid var(--border-light);
  border-radius: 100px;
  font-size: 13px;
  color: var(--primary);
  letter-spacing: 1px;
  margin-bottom: 40px;
  backdrop-filter: blur(10px);
  background: rgba(243, 186, 143, 0.05);
}

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

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.5); }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(48px, 7vw, 88px);
  font-weight: 500;
  line-height: 1.15;
  margin-bottom: 28px;
  letter-spacing: -1px;
}

.hero-title-line {
  display: block;
}

.hero-title-highlight {
  background: linear-gradient(135deg, var(--primary), var(--primary-light), var(--primary));
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 4s linear infinite;
  font-style: italic;
}

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

.hero-subtitle {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 48px;
  font-weight: 300;
}

.hero-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-bottom: 72px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary);
  color: #000;
  padding: 14px 32px;
  border-radius: 100px;
  font-size: 15px;
}

.btn-primary:hover {
  background: var(--primary-light);
  box-shadow: 0 0 30px rgba(243, 186, 143, 0.3);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 14px 32px;
  border-radius: 100px;
  font-size: 15px;
  border: 1px solid var(--border-color);
}

.btn-ghost:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 16px;
}

/* ---------- Hero Stats ---------- */
.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 42px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1;
}

.stat-suffix {
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--primary);
  font-weight: 500;
}

.stat-label {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 8px;
  letter-spacing: 0.5px;
}

.stat-divider {
  width: 1px;
  height: 48px;
  background: var(--border-color);
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  z-index: 1;
}

.hero-scroll span {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.scroll-indicator {
  width: 24px;
  height: 40px;
  border: 1.5px solid var(--border-color);
  border-radius: 12px;
  position: relative;
}

.scroll-dot {
  width: 3px;
  height: 8px;
  background: var(--primary);
  border-radius: 2px;
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  animation: scrollBounce 2s ease-in-out infinite;
}

@keyframes scrollBounce {
  0%, 100% { top: 8px; opacity: 1; }
  50% { top: 22px; opacity: 0.3; }
}

/* ---------- Section Common ---------- */
.section-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 3px;
  color: var(--primary);
  text-transform: uppercase;
  margin-bottom: 20px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 500;
  line-height: 1.3;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 600px;
  font-weight: 300;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-header .section-desc {
  margin: 0 auto;
}

/* ---------- Brand Philosophy ---------- */
.brand-philosophy {
  padding: 120px 0;
  border-top: 1px solid var(--border-color);
}

.philosophy-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.philosophy-text .section-title {
  font-size: clamp(28px, 3.5vw, 42px);
}

.philosophy-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.visual-card {
  position: relative;
  width: 320px;
  height: 320px;
}

.visual-photo {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 200px;
  height: 200px;
  border-radius: 50%;
  object-fit: cover;
  z-index: 1;
}

.visual-circle {
  position: absolute;
  inset: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  opacity: 0.15;
}

.visual-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid var(--border-light);
  animation: ringRotate 20s linear infinite;
  z-index: 2;
}

.visual-ring::before {
  content: '';
  position: absolute;
  top: -4px;
  left: 50%;
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
}

@keyframes ringRotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* ---------- Products ---------- */
.products {
  padding: 120px 0;
  background: var(--bg-section);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.product-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.product-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-light);
  box-shadow: var(--shadow-glow);
}

.product-image {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
}

.product-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-img-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(243, 186, 143, 0.05), rgba(243, 186, 143, 0.02));
  transition: var(--transition);
}

.product-card:hover .product-img-placeholder {
  background: linear-gradient(135deg, rgba(243, 186, 143, 0.1), rgba(243, 186, 143, 0.04));
}

.product-overlay {
  position: absolute;
  inset: 0;
  background: rgba(243, 186, 143, 0.15);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

.product-card:hover .product-overlay {
  opacity: 1;
}

.product-link {
  padding: 10px 24px;
  border: 1px solid #fff;
  border-radius: 100px;
  font-size: 13px;
  color: #fff;
  letter-spacing: 1px;
}

.product-link:hover {
  background: #fff;
  color: #000;
}

.product-info {
  padding: 24px;
}

.product-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 2px;
  color: var(--primary);
  text-transform: uppercase;
  margin-bottom: 10px;
}

.product-name {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.product-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ---------- AI Features ---------- */
.ai-features {
  padding: 120px 0;
}

.features-showcase {
  display: flex;
  flex-direction: column;
  gap: 64px;
}

.feature-main {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.feature-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.face-scan {
  position: relative;
  width: 360px;
  height: 360px;
}

.face-scan-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

.scan-frame {
  position: absolute;
  inset: 20px;
  border: 1px solid var(--border-light);
  border-radius: 50%;
  overflow: hidden;
}

.scan-line {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  animation: scanMove 3s ease-in-out infinite;
}

@keyframes scanMove {
  0%, 100% { top: 0; }
  50% { top: 100%; }
}

.scan-corner {
  position: absolute;
  width: 20px;
  height: 20px;
  border-color: var(--primary);
  border-style: solid;
}

.scan-corner.tl { top: 10px; left: 10px; border-width: 2px 0 0 2px; border-radius: 4px 0 0 0; }
.scan-corner.tr { top: 10px; right: 10px; border-width: 2px 2px 0 0; border-radius: 0 4px 0 0; }
.scan-corner.bl { bottom: 10px; left: 10px; border-width: 0 0 2px 2px; border-radius: 0 0 0 4px; }
.scan-corner.br { bottom: 10px; right: 10px; border-width: 0 2px 2px 0; border-radius: 0 0 4px 0; }

.scan-point {
  position: absolute;
  width: 6px;
  height: 6px;
  background: var(--primary);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  animation: pointPulse 2s ease-in-out infinite;
}

.scan-point::after {
  content: '';
  position: absolute;
  inset: -4px;
  border: 1px solid var(--primary);
  border-radius: 50%;
  opacity: 0.4;
}

@keyframes pointPulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
  50% { transform: translate(-50%, -50%) scale(1.5); opacity: 0.5; }
}

.feature-info {
  padding: 20px 0;
}

.feature-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 2px;
  color: var(--primary);
  text-transform: uppercase;
  padding: 6px 16px;
  border: 1px solid var(--border-light);
  border-radius: 100px;
  margin-bottom: 24px;
}

.feature-title {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 500;
  margin-bottom: 20px;
}

.feature-desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
  font-weight: 300;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: var(--text-secondary);
}

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--primary-subtle);
  color: var(--primary);
  flex-shrink: 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: var(--transition);
}

.feature-card:hover {
  border-color: var(--border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.feature-card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--primary-subtle);
  color: var(--primary);
  margin-bottom: 24px;
}

.feature-card h4 {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ---------- Data Showcase ---------- */
.data-showcase {
  padding: 80px 0;
  background: var(--bg-section);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.data-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.data-card {
  text-align: center;
  padding: 40px 24px;
}

.data-number {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 12px;
}

.data-unit {
  font-size: 20px;
  color: var(--primary);
  font-weight: 500;
}

.data-label {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.data-bar {
  width: 100%;
  height: 3px;
  background: var(--border-color);
  border-radius: 2px;
  overflow: hidden;
}

.data-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  border-radius: 2px;
  transition: width 1.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  width: 0;
}

.data-bar-fill.animated {
  /* width set inline */
}

/* ---------- Community ---------- */
.community {
  padding: 120px 0;
}

.community-tabs {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 48px;
}

.tab-btn {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 400;
  color: var(--text-muted);
  padding: 10px 24px;
  border: 1px solid transparent;
  border-radius: 100px;
  background: transparent;
  cursor: pointer;
  transition: var(--transition-fast);
}

.tab-btn:hover {
  color: var(--text-secondary);
}

.tab-btn.active {
  color: var(--primary);
  border-color: var(--border-light);
  background: var(--primary-subtle);
}

.community-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.community-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.community-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-light);
  box-shadow: var(--shadow-glow);
}

.community-card-img {
  position: relative;
  aspect-ratio: 3/4;
  overflow: hidden;
}

.community-card-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.img-placeholder {
  width: 100%;
  height: 100%;
}

.gradient-1 { background: linear-gradient(135deg, #F3BA8F 0%, #E8A07A 50%, #D4975E 100%); }
.gradient-2 { background: linear-gradient(135deg, #F7D4B5 0%, #F3BA8F 50%, #E8A07A 100%); }
.gradient-3 { background: linear-gradient(135deg, #D4975E 0%, #C4854E 50%, #B07540 100%); }
.gradient-4 { background: linear-gradient(135deg, #F3BA8F 0%, #F7D4B5 30%, #E8A07A 70%, #D4975E 100%); }

.community-card-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  padding: 4px 12px;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(10px);
  border-radius: 100px;
  font-size: 11px;
  color: var(--primary);
  letter-spacing: 1px;
}

.community-card-content {
  padding: 20px;
}

.community-card-content h4 {
  font-size: 14px;
  font-weight: 500;
  line-height: 1.5;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.community-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-muted);
}

.community-card-meta .author {
  color: var(--text-secondary);
}

.community-card-meta .likes {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--primary);
}

.community-cta {
  text-align: center;
}

/* ---------- Shop ---------- */
.shop {
  padding: 120px 0;
  background: var(--bg-section);
}

.shop-categories {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.shop-cat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 0;
  text-align: center;
  transition: var(--transition);
  overflow: hidden;
}

.shop-cat-card:hover {
  border-color: var(--border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.shop-cat-img {
  width: 100%;
  height: 160px;
  object-fit: cover;
}

.shop-cat-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  margin: 24px auto;
  border-radius: 20px;
  background: var(--primary-subtle);
  color: var(--primary);
}

.shop-cat-card .card-content {
  padding: 0 28px 28px;
}

.shop-cat-card h3 {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
}

.shop-cat-card p {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.shop-cat-link {
  font-size: 13px;
  color: var(--primary);
  letter-spacing: 0.5px;
}

.shop-cat-link:hover {
  letter-spacing: 1px;
}

.shop-featured {
  background: linear-gradient(135deg, rgba(243, 186, 143, 0.12), rgba(243, 186, 143, 0.04));
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 64px;
  text-align: center;
}

.featured-label {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 2px;
  color: var(--primary);
  text-transform: uppercase;
  padding: 6px 16px;
  border: 1px solid var(--border-light);
  border-radius: 100px;
  margin-bottom: 24px;
}

.shop-featured h3 {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 500;
  margin-bottom: 16px;
}

.shop-featured p {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

/* ---------- Rewards ---------- */
.rewards {
  padding: 120px 0;
}

.rewards-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.rewards-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 40px;
}

.reward-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.reward-item:hover {
  border-color: var(--border-light);
}

.reward-points {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 600;
  color: var(--primary);
  flex-shrink: 0;
}

.reward-desc {
  font-size: 14px;
  color: var(--text-secondary);
}

.rewards-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.rewards-card-stack {
  position: relative;
  width: 300px;
  height: 360px;
}

.rewards-card {
  position: absolute;
  width: 240px;
  padding: 24px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
}

.rewards-card .rc-icon {
  font-size: 24px;
}

.rc-1 {
  top: 0;
  left: 0;
  transform: rotate(-6deg);
  z-index: 1;
}

.rc-2 {
  top: 100px;
  left: 30px;
  transform: rotate(2deg);
  z-index: 2;
}

.rc-3 {
  top: 200px;
  left: 10px;
  transform: rotate(-3deg);
  z-index: 3;
  border-color: var(--border-light);
  background: var(--bg-card-hover);
}

/* ---------- About ---------- */
.about {
  padding: 120px 0;
  background: var(--bg-section);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.value-item h4 {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 8px;
}

.value-item p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}

.about-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.about-image-frame {
  position: relative;
  width: 360px;
  height: 360px;
}

.about-logo {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: contain;
  z-index: 2;
  background: rgba(243, 186, 143, 0.1);
  padding: 16px;
  box-shadow: 0 0 40px rgba(243, 186, 143, 0.2);
}

.about-decorative-circle {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid var(--border-light);
}

.about-decorative-circle::before {
  content: '';
  position: absolute;
  inset: 30px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-subtle), transparent);
}

.about-decorative-dots {
  position: absolute;
  inset: 60px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 30% 30%, var(--primary) 2px, transparent 2px),
    radial-gradient(circle at 70% 40%, var(--primary) 1.5px, transparent 1.5px),
    radial-gradient(circle at 50% 60%, var(--primary) 2.5px, transparent 2.5px),
    radial-gradient(circle at 40% 70%, var(--primary) 1px, transparent 1px),
    radial-gradient(circle at 60% 25%, var(--primary) 1.5px, transparent 1.5px);
  opacity: 0.4;
}

/* ---------- Footer ---------- */
.footer {
  padding: 80px 0 40px;
  border-top: 1px solid var(--border-color);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 2fr 1fr;
  gap: 64px;
  margin-bottom: 64px;
}

.footer-brand .nav-logo {
  margin-bottom: 20px;
}

.footer-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 28px;
  max-width: 320px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  transition: var(--transition-fast);
}

.social-link:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-subtle);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}

.footer-col li {
  margin-bottom: 12px;
}

.footer-col a {
  font-size: 13px;
  color: var(--text-muted);
}

.footer-col a:hover {
  color: var(--primary);
}

.footer-newsletter h4 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}

.footer-newsletter p {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.newsletter-form {
  display: flex;
  gap: 8px;
}

.newsletter-form input {
  flex: 1;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 100px;
  color: var(--text-primary);
  font-size: 13px;
  font-family: var(--font-sans);
  outline: none;
  transition: var(--transition-fast);
}

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

.newsletter-form input:focus {
  border-color: var(--primary);
}

.newsletter-form button {
  padding: 12px 24px;
  background: var(--primary);
  color: #000;
  border: none;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: var(--transition-fast);
  white-space: nowrap;
}

.newsletter-form button:hover {
  background: var(--primary-light);
}

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid var(--border-color);
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: var(--text-muted);
}

/* ---------- Fade-in Animation ---------- */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Touch Active State ---------- */
.touch-active {
  opacity: 0.7;
  transform: scale(0.98);
}

/* ---------- Mobile Image Loading ---------- */
@media (max-width: 768px) {
  img {
    /* Improve rendering on mobile */
    -webkit-user-select: none;
    user-select: none;
  }

  /* Prevent text selection on interactive elements */
  button,
  a,
  .btn {
    -webkit-tap-highlight-color: transparent;
  }
}

/* ---------- Responsive ---------- */

/* 平板电脑端 (768px - 1024px) */
@media (max-width: 1024px) {
  .container {
    padding: 0 32px;
  }

  .nav-container {
    padding: 0 32px;
  }

  .nav-menu {
    gap: 28px;
  }

  .hero-content {
    padding: 0 32px;
  }

  .hero-title {
    font-size: clamp(36px, 6vw, 64px);
  }

  .hero-stats {
    gap: 32px;
  }

  .stat-number {
    font-size: 36px;
  }

  .stat-divider {
    height: 40px;
  }

  .section-title {
    font-size: clamp(28px, 4vw, 40px);
  }

  .products,
  .ai-features,
  .community,
  .shop,
  .rewards,
  .about {
    padding: 80px 0;
  }

  .philosophy-content,
  .about-grid,
  .rewards-content {
    gap: 60px;
  }

  .feature-main {
    gap: 48px;
  }

  .face-scan {
    width: 300px;
    height: 300px;
  }

  .visual-card {
    width: 280px;
    height: 280px;
  }

  .about-image-frame {
    width: 300px;
    height: 300px;
  }

  .about-logo {
    width: 100px;
    height: 100px;
  }

  .shop-cat-img {
    height: 140px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
  }

  .footer-links {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
}

/* 移动端 (768px以下) */
@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }

  .nav-container {
    padding: 0 20px;
  }

  .nav-logo {
    gap: 8px;
  }

  .logo-img {
    height: 32px;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 10, 10, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    gap: 28px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
  }

  .nav-menu.open {
    opacity: 1;
    visibility: visible;
  }

  .nav-menu .nav-link {
    font-size: 20px;
  }

  .nav-actions {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle.open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .nav-toggle.open span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  /* Hero Section */
  .hero-content {
    padding: 0 20px;
  }

  .hero-badge {
    font-size: 12px;
    padding: 6px 16px;
    margin-bottom: 32px;
  }

  .hero-title {
    font-size: clamp(32px, 8vw, 48px);
    margin-bottom: 20px;
  }

  .hero-subtitle {
    font-size: 15px;
    margin-bottom: 36px;
  }

  .hero-cta {
    flex-direction: column;
    gap: 16px;
    margin-bottom: 48px;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .btn-lg {
    padding: 14px 28px;
  }

  .hero-stats {
    flex-direction: column;
    gap: 24px;
  }

  .stat-item {
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .stat-number {
    font-size: 32px;
  }

  .stat-suffix {
    font-size: 16px;
  }

  .stat-label {
    font-size: 12px;
    margin-top: 0;
    margin-left: 8px;
  }

  .stat-divider {
    width: 60px;
    height: 1px;
  }

  .hero-scroll {
    display: none;
  }

  /* Section Styles */
  .section-header {
    margin-bottom: 48px;
  }

  .section-label {
    font-size: 11px;
    margin-bottom: 16px;
  }

  .section-title {
    font-size: clamp(26px, 6vw, 36px);
    margin-bottom: 16px;
  }

  .section-desc {
    font-size: 14px;
  }

  .brand-philosophy,
  .products,
  .ai-features,
  .data-showcase,
  .community,
  .shop,
  .rewards,
  .about {
    padding: 60px 0;
  }

  .philosophy-content,
  .about-grid,
  .rewards-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .philosophy-visual,
  .about-visual,
  .rewards-visual {
    order: -1;
  }

  /* Product Cards */
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .product-info {
    padding: 16px;
  }

  .product-tag {
    font-size: 10px;
  }

  .product-name {
    font-size: 14px;
  }

  .product-desc {
    font-size: 12px;
  }

  /* Feature Section */
  .feature-main {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .feature-visual {
    order: -1;
  }

  .face-scan {
    width: 260px;
    height: 260px;
  }

  .feature-info {
    text-align: center;
  }

  .feature-badge {
    font-size: 10px;
    padding: 4px 12px;
  }

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

  .feature-desc {
    font-size: 14px;
  }

  .feature-list {
    align-items: center;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .feature-card {
    padding: 24px 20px;
  }

  .feature-card-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 16px;
  }

  .feature-card h4 {
    font-size: 15px;
  }

  .feature-card p {
    font-size: 12px;
  }

  /* Data Section */
  .data-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .data-card {
    padding: 24px 16px;
  }

  .data-number {
    font-size: 32px;
  }

  .data-unit {
    font-size: 16px;
  }

  .data-label {
    font-size: 12px;
  }

  /* Community Section */
  .community-tabs {
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 32px;
  }

  .tab-btn {
    font-size: 13px;
    padding: 8px 16px;
  }

  .community-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 32px;
  }

  .community-card-content {
    padding: 16px;
  }

  .community-card-content h4 {
    font-size: 13px;
  }

  .community-card-meta {
    font-size: 11px;
  }

  /* Shop Section */
  .shop-categories {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 32px;
  }

  .shop-cat-img {
    height: 120px;
  }

  .shop-cat-card .card-content {
    padding: 0 16px 20px;
  }

  .shop-cat-card h3 {
    font-size: 16px;
  }

  .shop-cat-card p {
    font-size: 12px;
  }

  .shop-featured {
    padding: 40px 24px;
  }

  .shop-featured h3 {
    font-size: 24px;
  }

  .shop-featured p {
    font-size: 14px;
  }

  /* Rewards Section */
  .rewards-list {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .reward-item {
    padding: 12px 16px;
  }

  .rewards-card-stack {
    transform: scale(0.8);
  }

  /* About Section */
  .about-values {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .value-item h4 {
    font-size: 16px;
  }

  .value-item p {
    font-size: 13px;
  }

  .about-image-frame {
    width: 260px;
    height: 260px;
  }

  .about-logo {
    width: 80px;
    height: 80px;
    padding: 12px;
  }

  /* Footer */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-links {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer-col h4 {
    font-size: 13px;
  }

  .footer-col li {
    margin-bottom: 8px;
  }

  .footer-col a {
    font-size: 12px;
  }

  .footer-brand .nav-logo {
    margin-bottom: 16px;
  }

  .footer-desc {
    font-size: 13px;
  }

  .newsletter-form {
    flex-direction: column;
    gap: 12px;
  }

  .newsletter-form input {
    width: 100%;
  }

  .newsletter-form button {
    width: 100%;
  }

  .footer-bottom {
    padding-top: 24px;
  }

  .footer-bottom p {
    font-size: 12px;
  }
}

/* 手机端 (480px以下) */
@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .nav-container {
    padding: 0 16px;
  }

  .logo-img {
    height: 28px;
  }

  .hero-badge {
    font-size: 11px;
    padding: 5px 14px;
  }

  .hero-title {
    font-size: clamp(28px, 8vw, 36px);
  }

  .hero-subtitle {
    font-size: 14px;
    line-height: 1.6;
  }

  .hero-cta {
    margin-bottom: 40px;
  }

  .stat-number {
    font-size: 28px;
  }

  .stat-label {
    font-size: 11px;
  }

  .section-label {
    font-size: 10px;
    letter-spacing: 2px;
  }

  .section-title {
    font-size: clamp(24px, 6vw, 32px);
  }

  .section-desc {
    font-size: 13px;
  }

  .brand-philosophy,
  .products,
  .ai-features,
  .data-showcase,
  .community,
  .shop,
  .rewards,
  .about {
    padding: 48px 0;
  }

  /* Product Grid - 1 column on very small screens */
  .products-grid {
    grid-template-columns: 1fr;
    max-width: 320px;
    margin: 0 auto;
  }

  /* Feature Grid */
  .features-grid {
    grid-template-columns: 1fr;
  }

  .feature-card {
    text-align: center;
  }

  /* Data Grid */
  .data-grid {
    grid-template-columns: 1fr;
  }

  /* Community Grid */
  .community-grid {
    grid-template-columns: 1fr;
    max-width: 320px;
    margin: 0 auto;
  }

  /* Shop Categories */
  .shop-categories {
    grid-template-columns: 1fr;
    max-width: 320px;
    margin: 0 auto;
  }

  .shop-cat-img {
    height: 160px;
  }

  .shop-featured {
    padding: 32px 20px;
  }

  .shop-featured h3 {
    font-size: 20px;
  }

  /* About Section */
  .about-image-frame {
    width: 220px;
    height: 220px;
  }

  .about-logo {
    width: 70px;
    height: 70px;
    padding: 10px;
  }

  /* Footer */
  .footer-links {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-social {
    justify-content: center;
  }

  .footer-brand {
    text-align: center;
  }

  .footer-brand .nav-logo {
    justify-content: center;
  }

  .footer-desc {
    max-width: 100%;
  }
}

/* 移动端横屏优化 */
@media (max-height: 500px) and (orientation: landscape) {
  .hero {
    min-height: auto;
    padding: 100px 0 60px;
  }

  .hero-scroll {
    display: none;
  }

  .hero-stats {
    flex-direction: row;
    gap: 24px;
  }

  .stat-divider {
    width: 1px;
    height: 32px;
  }
}

/* 触摸设备优化 */
@media (hover: none) and (pointer: coarse) {
  .product-card:hover,
  .feature-card:hover,
  .shop-cat-card:hover,
  .community-card:hover {
    transform: none;
  }

  .product-overlay {
    opacity: 1;
    background: rgba(243, 186, 143, 0.2);
  }

  .nav-link:hover::after {
    width: 0;
  }
}

/* 大屏幕优化 */
@media (min-width: 1920px) {
  .container {
    max-width: 1400px;
  }

  .nav-container {
    max-width: 1400px;
  }

  .hero-content {
    max-width: 1000px;
  }

  .hero-title {
    font-size: 96px;
  }

  .section-title {
    font-size: 56px;
  }
}