/* Shangmai Test Theme - Modern Design System */

/* CSS Custom Properties (Design Tokens) */
:root {
  /* Color Palette - Inspired by Apple's minimalism */
  --color-primary: #000000;
  --color-primary-light: #333333;
  --color-secondary: #007AFF;
  --color-accent: #FF9500;
  --color-success: #30D158;
  --color-warning: #FF9F0A;
  --color-danger: #FF3B30;
  
  /* Neutral Colors */
  --color-white: #FFFFFF;
  --color-gray-50: #F9FAFB;
  --color-gray-100: #F3F4F6;
  --color-gray-200: #E5E7EB;
  --color-gray-300: #D1D5DB;
  --color-gray-400: #9CA3AF;
  --color-gray-500: #6B7280;
  --color-gray-600: #4B5563;
  --color-gray-700: #374151;
  --color-gray-800: #1F2937;
  --color-gray-900: #111827;
  
  /* Background Colors */
  --color-background: var(--color-white);
  --color-background-secondary: var(--color-gray-50);
  --color-surface: var(--color-white);
  --color-surface-secondary: var(--color-gray-100);
  
  /* Text Colors */
  --color-text-primary: var(--color-gray-900);
  --color-text-secondary: var(--color-gray-600);
  --color-text-muted: var(--color-gray-500);
  --color-text-inverse: var(--color-white);
  
  /* Border Colors */
  --color-border: var(--color-gray-200);
  --color-border-light: var(--color-gray-100);
  --color-border-dark: var(--color-gray-300);
  
  /* Typography */
  --font-family-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', '微软雅黑', 'SimSun', '宋体', sans-serif;
  --font-family-serif: 'Georgia', 'Times New Roman', serif;
  --font-family-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
  
  /* Font Sizes - Fluid Typography */
  --font-size-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --font-size-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
  --font-size-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
  --font-size-lg: clamp(1.125rem, 1rem + 0.625vw, 1.25rem);
  --font-size-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
  --font-size-2xl: clamp(1.5rem, 1.3rem + 1vw, 2rem);
  --font-size-3xl: clamp(1.875rem, 1.6rem + 1.375vw, 2.5rem);
  --font-size-4xl: clamp(2.25rem, 1.9rem + 1.75vw, 3rem);
  --font-size-5xl: clamp(3rem, 2.5rem + 2.5vw, 4rem);
  --font-size-6xl: clamp(3.75rem, 3rem + 3.75vw, 5rem);
  
  /* Font Weights */
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;
  
  /* Line Heights */
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;
  --line-height-loose: 2;
  
  /* Spacing Scale */
  --space-px: 1px;
  --space-0: 0;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;
  --space-40: 10rem;
  --space-48: 12rem;
  --space-56: 14rem;
  --space-64: 16rem;
  
  /* Layout */
  --container-max-width: 1200px;
  --container-padding: var(--space-6);
  --header-height: 80px;
  --section-padding: var(--space-20);
  
  /* Border Radius */
  --radius-none: 0;
  --radius-sm: 0.125rem;
  --radius-base: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-2xl: 1rem;
  --radius-3xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-base: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Z-Index Scale */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: var(--font-family-sans);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
  -webkit-text-size-adjust: none;
  -moz-text-size-adjust: none;
  text-size-adjust: none;
}

/* Typography System */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
  letter-spacing: -0.025em;
}

h1 { 
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.05em;
}
h2 { 
  font-size: var(--font-size-3xl);
  letter-spacing: -0.04em;
}
h3 { 
  font-size: var(--font-size-2xl);
  letter-spacing: -0.03em;
}
h4 { 
  font-size: var(--font-size-xl);
  letter-spacing: -0.02em;
}
h5 { 
  font-size: var(--font-size-lg);
}
h6 { 
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
}

p {
  margin-bottom: var(--space-4);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

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

a:hover {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 2px;
}

/* Layout Components */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section {
  padding: var(--section-padding) 0;
}

.section-sm {
  padding: var(--space-16) 0;
}

.section-lg {
  padding: var(--space-32) 0;
}

/* Grid System */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.grid-cols-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }

/* Responsive Grid */
@media (max-width: 1024px) {
  .grid-cols-4,
  .grid-cols-5,
  .grid-cols-6 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4,
  .grid-cols-5,
  .grid-cols-6 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 480px) {
  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4,
  .grid-cols-5,
  .grid-cols-6 {
    grid-template-columns: repeat(1, minmax(0, 1fr));
  }
}

/* Flexbox Utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.flex-wrap { flex-wrap: wrap; }
.flex-nowrap { flex-wrap: nowrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }
.justify-start { justify-content: flex-start; }
.justify-end { justify-content: flex-end; }

/* Button System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
  user-select: none;
  outline: none;
  position: relative;
  overflow: hidden;
}

.btn:focus-visible {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.btn-primary:hover {
  background-color: var(--color-primary-light);
  border-color: var(--color-primary-light);
  color: var(--color-white);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: var(--color-secondary);
  color: var(--color-white);
  border-color: var(--color-secondary);
}

.btn-secondary:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-border-dark);
}

.btn-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-ghost:hover {
  background-color: var(--color-surface-secondary);
  color: var(--color-primary);
  text-decoration: none;
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-lg);
  border-radius: var(--radius-xl);
}

.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-base);
}

/* Card System */
.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-xs);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

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

.card-header {
  margin-bottom: var(--space-4);
}

.card-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-2);
  color: var(--color-text-primary);
}

.card-subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: 0;
}

.card-body {
  margin-bottom: var(--space-4);
}

.card-footer {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border-light);
}

/* Header Styles */
.site-header {
  position: sticky;
  top: 0;
  background-color: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border-light);
  z-index: var(--z-sticky);
  height: var(--header-height);
  transition: all var(--transition-fast);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 var(--container-padding);
}

.site-logo {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.site-logo:hover {
  color: var(--color-secondary);
  text-decoration: none;
}

/* Navigation */
.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.header-content {
  padding: var(--space-2) var(--container-padding);
}

.nav-link {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  padding: var(--space-2) 0;
  position: relative;
  transition: all var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-secondary);
  text-decoration: none;
}

.nav-link.active {
  color: var(--color-secondary);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  background-color: var(--color-secondary);
  border-radius: var(--radius-full);
}

/* Mobile Navigation */
.mobile-nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--radius-base);
  transition: all var(--transition-fast);
}

.mobile-nav-toggle:hover {
  background-color: var(--color-surface-secondary);
}

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

.mobile-nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

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

.mobile-nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}


/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--color-background) 0%, var(--color-background-secondary) 100%);
  padding: var(--space-32) 0 var(--space-24);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 50% 50%, rgba(0, 122, 255, 0.05) 0%, transparent 70%);
  pointer-events: none;
}

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

.hero-title {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-6);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.05em;
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: var(--line-height-relaxed);
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

/* Product Grid */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-8);
}

.product-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  transition: all var(--transition-normal);
  position: relative;
  cursor: pointer;
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-2xl);
  border-color: var(--color-border-dark);
}

.product-image {
  width: 100%;
  height: 240px;
  object-fit: cover;
  background-color: var(--color-background-secondary);
  transition: all var(--transition-slow);
}

.product-card:hover .product-image {
  transform: scale(1.05);
}

.product-info {
  padding: var(--space-6);
}

.product-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-2);
  color: var(--color-text-primary);
}

.product-description {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
  line-height: var(--line-height-relaxed);
}

.product-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.product-tag {
  background-color: var(--color-background-secondary);
  color: var(--color-text-muted);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

.product-price {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

/* Footer */
.site-footer {
  background: linear-gradient(135deg, var(--color-gray-900) 0%, var(--color-primary) 100%);
  color: var(--color-white);
  padding: var(--space-20) 0 var(--space-8);
  margin-top: var(--space-32);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.footer-section h3 {
  color: var(--color-white);
  margin-bottom: var(--space-4);
  font-size: var(--font-size-lg);
}

.footer-section p,
.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  line-height: var(--line-height-relaxed);
}

.footer-section a:hover {
  color: var(--color-white);
  text-decoration: none;
}

.footer-section ul {
  list-style: none;
  padding: 0;
}

.footer-section li {
  margin-bottom: var(--space-2);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-8);
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--color-text-primary); }
.text-secondary { color: var(--color-text-secondary); }
.text-muted { color: var(--color-text-muted); }
.text-white { color: var(--color-white); }

.bg-primary { background-color: var(--color-primary); }
.bg-secondary { background-color: var(--color-secondary); }
.bg-white { background-color: var(--color-white); }
.bg-gray-50 { background-color: var(--color-gray-50); }
.bg-gray-100 { background-color: var(--color-gray-100); }

/* Spacing Utilities */
.m-0 { margin: 0; }
.mt-0 { margin-top: 0; }
.mr-0 { margin-right: 0; }
.mb-0 { margin-bottom: 0; }
.ml-0 { margin-left: 0; }

.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }
.mt-16 { margin-top: var(--space-16); }

.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }
.mb-16 { margin-bottom: var(--space-16); }

.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }

.pt-8 { padding-top: var(--space-8); }
.pb-8 { padding-bottom: var(--space-8); }

/* Animation Classes */
.fade-in {
  animation: fadeIn var(--transition-slow) ease-out;
}

.slide-up {
  animation: slideUp var(--transition-slow) ease-out;
}

.scale-in {
  animation: scaleIn var(--transition-normal) ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Responsive Design */
@media (max-width: 1024px) {
  :root {
    --container-padding: var(--space-4);
    --section-padding: var(--space-16);
  }
  
  .hero {
    padding: var(--space-24) 0 var(--space-16);
  }
  
  .hero-title {
    font-size: var(--font-size-4xl);
  }
}

@media (max-width: 768px) {
  :root {
    --container-padding: var(--space-4);
    --section-padding: var(--space-12);
  }
  
  .hero {
    padding: var(--space-16) 0 var(--space-12);
  }
  
  .hero-title {
    font-size: var(--font-size-3xl);
  }
  
  .hero-subtitle {
    font-size: var(--font-size-lg);
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .product-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
}

@media (max-width: 480px) {
  :root {
    --container-padding: var(--space-3);
    --section-padding: var(--space-8);
  }
  
  .hero {
    padding: var(--space-12) 0 var(--space-8);
  }
  
  .card,
  .product-info {
    padding: var(--space-4);
  }
  
  .btn-lg {
    padding: var(--space-3) var(--space-6);
    font-size: var(--font-size-base);
  }
}

/* Chinese Typography Improvements */
:lang(zh) {
  line-height: 1.7;
  letter-spacing: 0.05em;
  word-break: break-all;
  word-wrap: break-word;
}

:lang(zh) h1,
:lang(zh) h2,
:lang(zh) h3,
:lang(zh) h4,
:lang(zh) h5,
:lang(zh) h6 {
  line-height: 1.4;
  letter-spacing: 0.02em;
}

:lang(zh) p {
  line-height: 1.8;
  text-align: justify;
}

/* Better Chinese card display */
:lang(zh) .card,
:lang(zh) .product-card {
  word-break: break-word;
  hyphens: none;
}

:lang(zh) .product-title {
  line-height: 1.5;
  word-break: break-word;
}

/* Responsive Chinese text sizing */
@media (max-width: 768px) {
  :lang(zh) {
    line-height: 1.6;
    letter-spacing: 0.03em;
  }
  
  :lang(zh) .hero-title {
    line-height: 1.3;
  }
  
  :lang(zh) .card-title,
  :lang(zh) .product-title {
    line-height: 1.4;
  }
}

/* Enhanced Micro-animations */
@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

@keyframes shimmer {
  0% { background-position: -200px 0; }
  100% { background-position: calc(200px + 100%) 0; }
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

.hover-float:hover {
  animation: float 2s ease-in-out infinite;
}

.loading-shimmer {
  background: linear-gradient(90deg, var(--color-background-secondary) 25%, var(--color-border) 50%, var(--color-background-secondary) 75%);
  background-size: 200px 100%;
  animation: shimmer 1.5s infinite;
}

/* Interactive elements */
.interactive-card {
  transition: all var(--transition-normal);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.interactive-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left var(--transition-slow);
}

.interactive-card:hover::before {
  left: 100%;
}

/* CTA Button enhancements */
.cta-button {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-secondary), var(--color-primary));
  color: white;
  border: none;
  padding: 1rem 2rem;
  border-radius: var(--radius-xl);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: all var(--transition-normal);
  box-shadow: 0 8px 25px rgba(0,122,255,0.3);
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 35px rgba(0,122,255,0.4);
  color: white;
  text-decoration: none;
}

.cta-button::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255,255,255,0.3);
  transition: width 0.6s, height 0.6s, top 0.6s, left 0.6s;
  transform: translate(-50%, -50%);
}

.cta-button:hover::after {
  width: 300px;
  height: 300px;
  top: 50%;
  left: 50%;
}

/* Status indicators */
.status-indicator {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  margin-right: 8px;
  position: relative;
}

.status-online {
  background: var(--color-success);
  animation: pulse 2s infinite;
}

.status-offline {
  background: var(--color-danger);
}

/* Breadcrumb styling */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
  padding: var(--space-2) 0;
}

.breadcrumb a {
  color: var(--color-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.breadcrumb a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.breadcrumb-separator {
  color: var(--color-text-muted);
  margin: 0 0.5rem;
}

/* Enhanced focus states */
*:focus-visible {
  outline: 3px solid var(--color-secondary);
  outline-offset: 2px;
  border-radius: var(--radius-base);
}

/* Smooth page transitions */
.page-transition {
  opacity: 0;
  transform: translateY(20px);
  animation: pageLoad 0.6s ease-out forwards;
}

@keyframes pageLoad {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}