/* 性能优化 - 关键CSS */
/* 预加载关键资源 */
@import url('https://fonts.googleapis.com/css2?family=Open+Sans:wght@400;600;700&family=Roboto:wght@500;700&display=swap');

/* 优化字体渲染 */
* {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* 优化图片加载 */
img {
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
}

/* 减少重绘和重排 */
.header,
.service-card,
.btn-modern {
  will-change: transform;
  transform: translateZ(0);
}

/* 优化动画性能 */
@media (prefers-reduced-motion: no-preference) {
  .service-card:hover,
  .btn-modern:hover {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }
}

:root {
  /* 主色调 - 现代蓝色系 */
  --primary: #2563EB; /* 现代蓝色 */
  --primary-light: #3B82F6;
  --primary-dark: #1D4ED8;
  --primary-50: #EFF6FF;
  --primary-100: #DBEAFE;
  --primary-200: #BFDBFE;
  
  /* 中性色调 */
  --secondary: #64748B;
  --accent: #0EA5E9;
  --text: #1E293B;
  --text-light: #64748B;
  --text-muted: #94A3B8;
  
  /* 基础颜色 */
  --white: #FFFFFF;
  --black: #000000;
  
  /* 灰度系统 - 更精致的层次 */
  --gray-25: #FCFCFD;
  --gray-50: #F8FAFC;
  --gray-100: #F1F5F9;
  --gray-200: #E2E8F0;
  --gray-300: #CBD5E1;
  --gray-400: #94A3B8;
  --gray-500: #64748B;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1E293B;
  --gray-900: #0F172A;
  
  /* 功能色彩 */
  --success: #10B981;
  --success-light: #34D399;
  --warning: #F59E0B;
  --warning-light: #FBBF24;
  --error: #EF4444;
  --error-light: #F87171;
  
  /* 布局变量 */
  --section-padding: 6rem 0 6rem 0;
  --border-radius: 12px;
  --border-radius-lg: 16px;
  --border-radius-xl: 24px;
  --border-radius-2xl: 32px;
  
  /* 阴影系统 - 更精致的层次 */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  
  /* 品牌阴影 */
  --box-shadow: 0 4px 20px 0 rgba(37, 99, 235, 0.08), 0 2px 8px 0 rgba(0, 0, 0, 0.04);
  --box-shadow-lg: 0 8px 32px 0 rgba(37, 99, 235, 0.12), 0 4px 16px 0 rgba(0, 0, 0, 0.06);
  --box-shadow-xl: 0 16px 48px 0 rgba(37, 99, 235, 0.16), 0 8px 24px 0 rgba(0, 0, 0, 0.08);
  
  /* 卡片阴影 */
  --card-shadow: 0 2px 16px 0 rgba(37, 99, 235, 0.06), 0 1px 4px 0 rgba(0, 0, 0, 0.03);
  --card-hover-shadow: 0 8px 32px 0 rgba(37, 99, 235, 0.12), 0 4px 16px 0 rgba(0, 0, 0, 0.06);
  
  /* 动画 */
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* 布局 */
  --max-width: 1280px;
  --header-height: 80px;
  --light-bg: var(--gray-50);
  --card-bg: var(--white);
  
  /* 字体 */
  --font-sans: 'Inter', 'PingFang SC', 'Roboto', 'Open Sans', Arial, sans-serif;
  --font-mono: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', monospace;
}

/* Base Styles */
* { 
  margin: 0; 
  padding: 0; 
  box-sizing: border-box; 
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body { 
  font-family: var(--font-sans);
  background: var(--gray-25); 
  color: var(--text); 
  line-height: 1.6; 
  overflow-x: hidden;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  padding-top: var(--header-height);
  min-height: 100vh;
}

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

ul { 
  list-style: none; 
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--border-radius);
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Skip link */
.skip-link { 
  position: absolute; 
  top: -40px; 
  left: 0; 
  background: var(--primary); 
  color: var(--white); 
  padding: 0.75rem 1.5rem; 
  z-index: 1000; 
  transition: var(--transition); 
  border-radius: 0 0 var(--border-radius) 0;
  font-weight: 600;
  font-size: 0.875rem;
}

.skip-link:focus { 
  top: 0; 
  outline: 2px solid var(--white);
  outline-offset: 2px;
}

/* Header & Navigation */
.header { 
  background: rgba(255, 255, 255, 0.95);
  color: var(--text);
  padding: 0;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: var(--transition);
  border-bottom: 1px solid var(--gray-200);
}

.header-container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  height: var(--header-height);
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: var(--transition);
}

.logo-container:hover {
  transform: scale(1.02);
}

.logo-container img {
  height: 44px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  font-family: var(--font-sans);
  color: var(--primary);
  letter-spacing: -0.025em;
}

/* Desktop Navigation */
.desktop-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  gap: 0.5rem;
}

.nav-list li a {
  padding: 0.75rem 1.25rem;
  border-radius: var(--border-radius);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text);
  position: relative;
  background: none;
  transition: var(--transition);
  border: 1px solid transparent;
}

.nav-list li a.active,
.nav-list li a:hover {
  color: var(--primary);
  background: var(--primary-50);
  border-color: var(--primary-200);
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.lang-switch {
  padding: 0.5rem 1rem;
  background: var(--gray-100);
  color: var(--text);
  border: 1px solid var(--gray-200);
  border-radius: var(--border-radius);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.lang-switch:hover {
  background: var(--gray-200);
  border-color: var(--gray-300);
  color: var(--text);
}

/* Mobile Menu Button - Enhanced */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  border: none;
  border-radius: var(--border-radius);
  padding: 0.75rem;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  width: 44px;
  height: 44px;
  position: relative;
  z-index: 1002;
  min-width: 44px;
  min-height: 44px;
}

.mobile-menu-btn:hover {
  background: var(--primary-dark);
  transform: scale(1.02);
  box-shadow: var(--shadow-md);
}

.mobile-menu-btn:active {
  transform: scale(0.98);
}

.mobile-menu-btn:focus {
  outline: 2px solid var(--white);
  outline-offset: 2px;
}

.hamburger-line {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--white);
  margin: 2.5px 0;
  border-radius: 1px;
  transition: var(--transition);
  position: relative;
}

.mobile-menu-btn[aria-expanded="true"] .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn[aria-expanded="true"] .hamburger-line:nth-child(2) {
  opacity: 0;
  transform: translateX(-10px);
}

.mobile-menu-btn[aria-expanded="true"] .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Navigation */
.mobile-nav {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  max-width: 320px;
  height: 100vh;
  background: var(--white);
  box-shadow: var(--shadow-2xl);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1001;
  overflow-y: auto;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.mobile-nav.active {
  right: 0;
  transform: translateX(0);
}

.mobile-nav-list {
  padding: 5rem 1.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.mobile-nav-list li a {
  padding: 1rem 1.25rem;
  border-radius: var(--border-radius);
  transition: var(--transition);
  font-weight: 500;
  font-size: 1rem;
  color: var(--text);
  display: block;
  border: 1px solid transparent;
  position: relative;
  overflow: hidden;
}

.mobile-nav-list li a::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--primary);
  transition: var(--transition);
  z-index: -1;
}

.mobile-nav-list li a:hover::before,
.mobile-nav-list li a.active::before {
  left: 0;
}

.mobile-nav-list li a:hover,
.mobile-nav-list li a.active {
  color: var(--white);
  border-color: var(--primary);
  transform: translateX(8px);
}

/* Mobile menu close button */
.mobile-nav-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 40px;
  height: 40px;
  background: var(--primary);
  color: var(--white);
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  z-index: 10;
  box-shadow: var(--shadow-sm);
}

.mobile-nav-close:hover {
  background: var(--primary-dark);
  transform: scale(1.05);
  box-shadow: var(--shadow-md);
}

.mobile-nav-close i {
  font-size: 1.1rem;
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(135deg, var(--gray-25) 0%, var(--primary-50) 100%);
  overflow: hidden;
  padding: 5rem 0 4rem 0;
  border-radius: 0 0 var(--border-radius-2xl) var(--border-radius-2xl);
  box-shadow: var(--shadow-lg);
  margin-bottom: 3rem;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('../images/recycle-singapore-bg.jpg') center/cover no-repeat;
  z-index: 1;
  opacity: 0.3;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.7) 0%, rgba(14, 165, 233, 0.6) 100%);
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 3;
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
  color: var(--white);
}

.hero-content h1 {
  font-size: 3rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 1.5rem;
  letter-spacing: -0.025em;
  line-height: 1.2;
  animation: fadeInUp 1s ease-out;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-content p {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2.5rem;
  animation: fadeInUp 1s ease-out 0.2s both;
  line-height: 1.6;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-btn, .service-link, .cta-btn {
  padding: 1rem 2rem;
  border-radius: var(--border-radius-lg);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition);
  border: 2px solid transparent;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.hero-btn.primary {
  background: var(--primary);
  color: var(--white);
  box-shadow: var(--shadow-md);
}

.hero-btn.secondary {
  background: var(--white);
  color: var(--primary);
  border-color: var(--primary);
  box-shadow: var(--shadow-sm);
}

.hero-btn:hover, .service-link:hover, .cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.hero-btn.primary:hover {
  background: var(--primary-dark);
}

.hero-btn.secondary:hover {
  background: var(--primary-50);
  border-color: var(--primary-dark);
}

/* Section Titles */
.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text);
  text-align: center;
  margin-bottom: 1rem;
  letter-spacing: -0.025em;
}

.section-description {
  font-size: 1.125rem;
  color: var(--text-light);
  text-align: center;
  max-width: 600px;
  margin: 0 auto 3rem;
  line-height: 1.6;
}

/* Services Section */
.services {
  padding: var(--section-padding);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.service-item {
  background: var(--white);
  border-radius: var(--border-radius-xl);
  padding: 2rem;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--gray-200);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
  transform: scaleX(0);
  transition: var(--transition);
}

.service-item:hover::before {
  transform: scaleX(1);
}

.service-item:hover {
  transform: translateY(-8px);
  box-shadow: var(--card-hover-shadow);
  border-color: var(--primary-200);
}

.service-image {
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius-xl);
  background: var(--gray-100);
  aspect-ratio: 16/10;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.service-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: var(--transition-slow);
  filter: brightness(0.95) contrast(1.05);
}

.service-card:hover .service-image {
  box-shadow: var(--shadow-xl);
  transform: scale(1.02);
}

.service-card:hover .service-image img {
  transform: scale(1.1);
  filter: brightness(1.05) contrast(1.1);
}

/* 图片加载状态 */
.service-image::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-100) 50%, var(--gray-200) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  z-index: 1;
  opacity: 1;
  transition: opacity 0.3s ease;
}

.service-image img[src] {
  z-index: 2;
  position: relative;
}

.service-image img[src] + .service-image::before {
  opacity: 0;
}

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

/* 图片覆盖层效果 */
.service-image::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(59, 130, 246, 0.05) 100%);
  opacity: 0;
  transition: var(--transition);
  z-index: 3;
  pointer-events: none;
}

.service-card:hover .service-image::after {
  opacity: 1;
}

/* 服务卡片整体优化 */
.service-card {
  background: var(--white);
  border-radius: var(--border-radius-xl);
  padding: 2rem;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--gray-200);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
  transform: scaleX(0);
  transition: var(--transition);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--card-hover-shadow);
  border-color: var(--primary-200);
}

/* 服务网格布局优化 */
.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

/* 响应式图片优化 */
@media (max-width: 768px) {
  .service-image {
    aspect-ratio: 4/3;
    margin-bottom: 1rem;
  }
  
  .service-card {
    padding: 1.5rem;
  }
  
  .service-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

@media (max-width: 480px) {
  .service-image {
    aspect-ratio: 3/2;
  }
  
  .service-card {
    padding: 1rem;
  }
}

/* 图片懒加载优化 */
.service-image img {
  opacity: 1; /* 改为1，确保图片默认显示 */
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.service-image img.loaded {
  opacity: 1;
}

/* 图片错误状态 */
.service-image.error::before {
  content: '📱';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 3rem;
  opacity: 0.3;
  z-index: 1;
}

/* 图片加载进度指示器 */
.service-image.loading::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: var(--primary);
  transition: width 0.3s ease;
  z-index: 4;
}

.service-image.loading.loading-25::after { width: 25%; }
.service-image.loading.loading-50::after { width: 50%; }
.service-image.loading.loading-75::after { width: 75%; }
.service-image.loading.loading-100::after { width: 100%; }

/* 图片悬停时的信息显示 */
.service-image-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
  color: var(--white);
  padding: 1.5rem;
  transform: translateY(100%);
  transition: var(--transition);
  z-index: 4;
}

.service-card:hover .service-image-overlay {
  transform: translateY(0);
}

.service-image-overlay h4 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.service-image-overlay p {
  font-size: 0.875rem;
  opacity: 0.9;
  line-height: 1.4;
}

/* 图片质量优化 */
.service-image img {
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
  backface-visibility: hidden;
}

/* 高分辨率屏幕优化 */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .service-image img {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
  }
}

/* 图片加载失败时的备用样式 */
.service-image img[src*="data:image/svg+xml"] {
  background: var(--gray-100);
  padding: 2rem;
}

/* 图片容器的最小高度确保一致性 */
.service-image {
  min-height: 200px;
}

@media (max-width: 768px) {
  .service-image {
    min-height: 150px;
  }
}

@media (max-width: 480px) {
  .service-image {
    min-height: 120px;
  }
}

.service-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.9) 0%, rgba(59, 130, 246, 0.8) 100%);
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  padding: 1.5rem;
  opacity: 0;
  transition: var(--transition);
  z-index: 4;
}

.service-item:hover .service-overlay {
  opacity: 1;
}

.service-badges {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.service-badges .badge {
  background: var(--white);
  color: var(--primary);
  font-size: 0.75rem;
  padding: 0.25rem 0.75rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* 现代化UI组件 */

/* 玻璃态效果 */
.glass-effect {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

/* 渐变背景组件 */
.gradient-bg {
  background: linear-gradient(135deg, var(--primary-50) 0%, var(--gray-25) 50%, var(--primary-100) 100%);
}

.gradient-bg-alt {
  background: linear-gradient(135deg, var(--gray-25) 0%, var(--primary-50) 50%, var(--gray-100) 100%);
}

/* 按钮样式增强 */
.btn-modern {
  padding: 1rem 2rem;
  border-radius: var(--border-radius-lg);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  transition: var(--transition);
  border: 2px solid transparent;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  background: var(--primary);
  color: var(--white);
  box-shadow: var(--shadow-md);
}

.btn-modern::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: var(--transition);
}

.btn-modern:hover::before {
  left: 100%;
}

.btn-modern:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  background: var(--primary-dark);
}

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

.btn-modern.secondary:hover {
  background: var(--primary-50);
  border-color: var(--primary-dark);
}

/* 步骤组件增强 */
.step::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--primary-50) 0%, var(--gray-25) 100%);
  opacity: 0;
  transition: var(--transition);
}

.step:hover::before {
  opacity: 1;
}

.step:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-200);
}

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

/* 徽章组件 */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
}

.badge.primary {
  background: var(--primary-100);
  color: var(--primary);
  border: 1px solid var(--primary-200);
}

.badge.success {
  background: var(--success-light);
  color: var(--success);
  border: 1px solid var(--success);
}

.badge.warning {
  background: var(--warning-light);
  color: var(--warning);
  border: 1px solid var(--warning);
}

/* 分割线组件 */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gray-300), transparent);
  margin: 2rem 0;
}

.divider.primary {
  background: linear-gradient(90deg, transparent, var(--primary-200), transparent);
}

/* 加载动画增强 */
.loading-dots {
  display: inline-flex;
  gap: 0.25rem;
}

.loading-dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
  animation: loading-dots 1.4s infinite ease-in-out;
}

.loading-dots span:nth-child(1) { animation-delay: -0.32s; }
.loading-dots span:nth-child(2) { animation-delay: -0.16s; }

@keyframes loading-dots {
  0%, 80%, 100% {
    transform: scale(0);
    opacity: 0.5;
  }
  40% {
    transform: scale(1);
    opacity: 1;
  }
}

/* 网格布局增强 */
.grid-auto-fit {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.grid-auto-fill {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1.5rem;
}

/* 响应式容器 */
.container-fluid {
  width: 100%;
  padding: 0 1rem;
}

.container-sm {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 1rem;
}

.container-md {
  max-width: 768px;
  margin: 0 auto;
  padding: 0 1rem;
}

.container-lg {
  max-width: 1024px;
  margin: 0 auto;
  padding: 0 1rem;
}

.container-xl {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* 间距工具类 */
.space-y-1 > * + * { margin-top: 0.25rem; }
.space-y-2 > * + * { margin-top: 0.5rem; }
.space-y-4 > * + * { margin-top: 1rem; }
.space-y-6 > * + * { margin-top: 1.5rem; }
.space-y-8 > * + * { margin-top: 2rem; }

.space-x-1 > * + * { margin-left: 0.25rem; }
.space-x-2 > * + * { margin-left: 0.5rem; }
.space-x-4 > * + * { margin-left: 1rem; }
.space-x-6 > * + * { margin-left: 1.5rem; }
.space-x-8 > * + * { margin-left: 2rem; }

/* 文本工具类 */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-sm { font-size: 0.875rem; }
.text-base { font-size: 1rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.text-3xl { font-size: 1.875rem; }

.font-light { font-weight: 300; }
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

/* 颜色工具类 */
.text-primary { color: var(--primary); }
.text-secondary { color: var(--secondary); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-error { color: var(--error); }
.text-muted { color: var(--text-muted); }

.bg-primary { background: var(--primary); }
.bg-secondary { background: var(--secondary); }
.bg-success { background: var(--success); }
.bg-warning { background: var(--warning); }
.bg-error { background: var(--error); }
.bg-muted { background: var(--gray-100); }

/* 联系区域优化 */
.contact-cta {
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-cta .glass-effect {
  width: 100%;
  max-width: 400px;
}

.contact-cta .space-x-4 {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}

.contact-cta .btn-modern {
  flex: 1;
  min-width: 140px;
  justify-content: center;
}

/* 统计数字样式 */
.stats-section {
  padding: 2rem 0;
}

.stats-section .text-3xl {
  font-size: 2.5rem;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stats-section p {
  color: var(--text-light);
  font-weight: 500;
}

/* 响应式优化 */
@media (max-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .contact-cta .space-x-4 {
    flex-direction: column;
  }
  
  .contact-cta .btn-modern {
    width: 100%;
  }
  
  .stats-section .grid-auto-fit {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
  
  .stats-section .text-3xl {
    font-size: 2rem;
  }
}

@media (max-width: 480px) {
  .stats-section .grid-auto-fit {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .stats-section .text-3xl {
    font-size: 1.75rem;
  }
  
  .contact-cta .glass-effect {
    padding: 2rem 1.5rem;
  }
}

/* 动画增强 */
@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

.floating {
  animation: float 3s ease-in-out infinite;
}

.floating-delay-1 {
  animation-delay: 0.5s;
}

.floating-delay-2 {
  animation-delay: 1s;
}

.floating-delay-3 {
  animation-delay: 1.5s;
}

/* 渐变文字效果 */
.gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 卡片悬停动画增强 */
.service-card,
.testimonial-card,
.contact-item {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.service-card:hover,
.testimonial-card:hover,
.contact-item:hover {
  transform: translateY(-8px) scale(1.02);
}

/* 按钮点击效果 */
.btn-modern:active {
  transform: translateY(0) scale(0.98);
}

/* 加载状态 */
.loading-state {
  opacity: 0.7;
  pointer-events: none;
}

.loading-state::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid var(--gray-300);
  border-top: 2px solid var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

/* 成功状态 */
.success-state {
  border-color: var(--success);
  background: var(--success-light);
  color: var(--success);
}

/* 错误状态 */
.error-state {
  border-color: var(--error);
  background: var(--error-light);
  color: var(--error);
}

/* 焦点状态增强 */
.btn-modern:focus,
.service-link:focus,
.contact-item:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* 无障碍增强 */
@media (prefers-reduced-motion: reduce) {
  .floating,
  .floating-delay-1,
  .floating-delay-2,
  .floating-delay-3 {
    animation: none;
  }
  
  .service-card:hover,
  .testimonial-card:hover,
  .contact-item:hover {
    transform: none;
  }
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
  .glass-effect {
    background: var(--white);
    border: 2px solid var(--gray-300);
  }
  
  .gradient-bg,
  .gradient-bg-alt {
    background: var(--gray-100);
  }
  
  .btn-modern {
    border: 2px solid var(--primary);
  }
}

/* 打印样式优化 */
@media print {
  .glass-effect {
    background: var(--white) !important;
    border: 1px solid var(--gray-300) !important;
    box-shadow: none !important;
  }
  
  .gradient-bg,
  .gradient-bg-alt {
    background: var(--white) !important;
  }
  
  .btn-modern {
    background: var(--gray-100) !important;
    color: var(--text) !important;
    border: 1px solid var(--gray-300) !important;
  }
}

/* UI展示页面样式 */
.components-section {
  padding: 4rem 0;
}

.component-group {
  margin: 3rem 0;
  padding: 2rem;
  background: var(--white);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--gray-200);
}

.component-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--primary);
  display: inline-block;
}

.component-demo {
  padding: 1.5rem;
  background: var(--gray-25);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--gray-200);
}

.component-demo .space-x-4 {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

.component-demo .space-y-4 {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.component-demo .space-y-2 {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

/* 响应式组件展示 */
@media (max-width: 768px) {
  .component-group {
    margin: 2rem 0;
    padding: 1.5rem;
  }
  
  .component-demo {
    padding: 1rem;
  }
  
  .component-demo .space-x-4 {
    flex-direction: column;
    align-items: stretch;
  }
  
  .component-demo .space-x-4 > * {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .component-group {
    margin: 1.5rem 0;
    padding: 1rem;
  }
  
  .component-title {
    font-size: 1.25rem;
  }
  
  .component-demo {
    padding: 0.75rem;
  }
}

/* 动画增强 */
.component-group {
  animation: slideInUp 0.6s ease-out;
}

.component-group:nth-child(1) { animation-delay: 0.1s; }
.component-group:nth-child(2) { animation-delay: 0.2s; }
.component-group:nth-child(3) { animation-delay: 0.3s; }
.component-group:nth-child(4) { animation-delay: 0.4s; }
.component-group:nth-child(5) { animation-delay: 0.5s; }
.component-group:nth-child(6) { animation-delay: 0.6s; }
.component-group:nth-child(7) { animation-delay: 0.7s; }
.component-group:nth-child(8) { animation-delay: 0.8s; }
.component-group:nth-child(9) { animation-delay: 0.9s; }

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

/* 悬停效果 */
.component-group:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

/* 焦点状态 */
.component-group:focus-within {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* 高对比度模式 */
@media (prefers-contrast: high) {
  .component-group {
    border: 2px solid var(--gray-400);
  }
  
  .component-demo {
    border: 2px solid var(--gray-300);
  }
}

/* 打印样式 */
@media print {
  .component-group {
    break-inside: avoid;
    border: 1px solid var(--gray-300);
    box-shadow: none;
  }
  
  .component-demo {
    background: var(--white) !important;
    border: 1px solid var(--gray-300) !important;
  }
}

/* About Page Styles */
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.about-card {
  padding: 2.5rem;
  border-radius: var(--border-radius-xl);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.about-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
  transform: scaleX(0);
  transition: var(--transition);
  z-index: 1;
}

.about-card:hover::before {
  transform: scaleX(1);
}

.about-icon {
  width: 80px;
  height: 80px;
  border-radius: var(--border-radius-lg);
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--white);
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.about-card:hover .about-icon {
  transform: scale(1.1) rotate(5deg);
}

.about-content h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 1rem;
}

.about-content p {
  color: var(--text-light);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

/* Values Page Styles */
.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.value-item {
  padding: 2.5rem;
  border-radius: var(--border-radius-xl);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.value-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--primary-50) 0%, var(--gray-25) 100%);
  opacity: 0;
  transition: var(--transition);
}

.value-item:hover::before {
  opacity: 1;
}

.value-icon {
  width: 80px;
  height: 80px;
  border-radius: var(--border-radius-lg);
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--white);
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  position: relative;
  z-index: 1;
}

.value-item:hover .value-icon {
  transform: scale(1.1);
  box-shadow: var(--shadow-lg);
}

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

.value-content h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 1rem;
}

.value-content p {
  color: var(--text-light);
  line-height: 1.6;
}

/* Stats Page Styles */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.stat-item {
  padding: 2rem;
  text-align: center;
}

.stat-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.5rem;
  line-height: 1;
}

.stat-label {
  font-size: 1.125rem;
  color: var(--white);
  opacity: 0.9;
  font-weight: 500;
}

/* Contact Page Styles */
.contact-form-container {
  padding: 2.5rem;
  border-radius: var(--border-radius-xl);
}

.contact-form-container h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 2rem;
  text-align: center;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group {
  position: relative;
}

.form-group label {
  display: block;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.form-control {
  width: 100%;
  padding: 1rem;
  border: 2px solid var(--gray-300);
  border-radius: var(--border-radius);
  font-size: 1rem;
  transition: var(--transition);
  background: var(--white);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.captcha-container {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.captcha-container .form-control {
  flex: 1;
}

.captcha-image {
  height: 48px;
  border: 2px solid var(--gray-300);
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
}

.captcha-image:hover {
  border-color: var(--primary);
}

/* Contact Methods Styles */
.contact-methods-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.contact-method {
  padding: 2.5rem;
  border-radius: var(--border-radius-xl);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.contact-method::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
  transform: scaleX(0);
  transition: var(--transition);
  z-index: 1;
}

.contact-method:hover::before {
  transform: scaleX(1);
}

.method-icon {
  width: 80px;
  height: 80px;
  border-radius: var(--border-radius-lg);
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--white);
  margin: 0 auto 1.5rem;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.contact-method:hover .method-icon {
  transform: scale(1.1) rotate(5deg);
}

.method-content h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 1rem;
}

.method-content p {
  color: var(--text-light);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

/* Responsive Design for Contact */
@media (max-width: 768px) {
  .contact-info-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .contact-card {
    padding: 2rem 1.5rem;
  }
  
  .contact-icon {
    width: 60px;
    height: 60px;
    font-size: 1.5rem;
  }
  
  .map-section {
    padding: 2rem 1.5rem;
  }
  
  .map-container {
    height: 300px;
  }
  
  .contact-form-container {
    padding: 2rem 1.5rem;
  }
  
  .captcha-container {
    flex-direction: column;
    align-items: stretch;
  }
  
  .captcha-image {
    align-self: center;
  }
}

/* About Page Styles */
.mission-vision-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 2rem;
  margin: 3rem 0;
}

.mission-card,
.vision-card {
  background: var(--white);
  border-radius: var(--border-radius-xl);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--gray-200);
  transition: all 0.3s ease;
}

.mission-card:hover,
.vision-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-200);
}

.card-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--white);
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
}

.mission-card:hover .card-icon,
.vision-card:hover .card-icon {
  transform: scale(1.1);
  box-shadow: var(--shadow-lg);
}

.card-content h3 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 1rem;
}

.card-content p {
  color: var(--gray-600);
  line-height: 1.6;
  font-size: 1.05rem;
}

/* Values Section Styles */
.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.value-card {
  background: var(--white);
  border-radius: var(--border-radius-xl);
  padding: 2.5rem 2rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--gray-200);
  transition: all 0.3s ease;
  text-align: center;
}

.value-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-200);
}

.value-icon {
  margin-bottom: 1.5rem;
}

.value-content h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 1rem;
}

.value-content p {
  color: var(--gray-600);
  line-height: 1.6;
}

/* Certifications Section Styles */
.certifications-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.certification-card {
  background: var(--white);
  border-radius: var(--border-radius-xl);
  padding: 2.5rem 2rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--gray-200);
  transition: all 0.3s ease;
  text-align: center;
}

.certification-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-200);
}

.certification-icon {
  margin-bottom: 1.5rem;
}

.certification-content h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 0.75rem;
}

.certification-content p {
  color: var(--gray-600);
  line-height: 1.6;
  font-size: 0.95rem;
}

/* Responsive Design for About */
@media (max-width: 768px) {
  .mission-vision-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .mission-card,
  .vision-card {
    padding: 2rem 1.5rem;
  }
  
  .card-icon {
    width: 60px;
    height: 60px;
    font-size: 1.5rem;
  }
  
  .card-content h3 {
    font-size: 1.5rem;
  }
  
  .values-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .value-card {
    padding: 2rem 1.5rem;
  }
  
  .certifications-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .certification-card {
    padding: 2rem 1.5rem;
  }
}

/* Recycling Service Page Styles */
.process-section {
  background: var(--white);
  border-radius: var(--border-radius-2xl);
  padding: 4rem 0;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--gray-200);
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.process-step {
  background: var(--white);
  border-radius: var(--border-radius-xl);
  padding: 2.5rem 2rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--gray-200);
  transition: all 0.3s ease;
  text-align: center;
}

.process-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-200);
}

.step-number {
  margin-bottom: 1.5rem;
}

.step-content h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 1rem;
}

.step-content p {
  color: var(--gray-600);
  line-height: 1.6;
}

/* Brands Section Styles */
.brands-section {
  margin: 3.5rem 0;
}

.brands-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}

.brand-card {
  background: var(--white);
  border-radius: var(--border-radius-xl);
  padding: 2rem 1.5rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--gray-200);
  transition: all 0.3s ease;
  text-align: center;
}

.brand-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-200);
}

.brand-icon {
  margin-bottom: 1rem;
}

.brand-content h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 0.5rem;
}

.brand-content p {
  color: var(--gray-600);
  font-size: 0.95rem;
}

/* Service Features Styles */
.service-features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.service-feature {
  background: var(--white);
  border-radius: var(--border-radius-xl);
  padding: 2.5rem 2rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--gray-200);
  transition: all 0.3s ease;
}

.service-feature:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-200);
}

.feature-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.feature-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--border-radius-lg);
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--white);
  box-shadow: var(--shadow-md);
}

.feature-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gray-900);
}

.feature-description {
  color: var(--gray-600);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.feature-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 0;
  color: var(--gray-700);
}

.feature-list li::before {
  content: '✓';
  color: var(--success);
  font-weight: bold;
  font-size: 1.1rem;
}

/* Responsive Design for Recycling Services */
@media (max-width: 768px) {
  .process-steps {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .process-step {
    padding: 2rem 1.5rem;
  }
  
  .step-number {
    width: 50px !important;
    height: 50px !important;
    font-size: 1.25rem !important;
  }
  
  .brands-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }
  
  .brand-card {
    padding: 1.5rem 1rem;
  }
  
  .brand-icon {
    width: 50px !important;
    height: 50px !important;
    font-size: 1.25rem !important;
  }
  
  .service-features-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .service-feature {
    padding: 2rem 1.5rem;
  }
  
  .feature-header {
    flex-direction: column;
    text-align: center;
    gap: 0.75rem;
  }
  
  .feature-icon {
    width: 50px;
    height: 50px;
    font-size: 1.25rem;
  }
}

@media (max-width: 480px) {
  .brands-grid {
    grid-template-columns: 1fr;
  }
  
  .brand-card {
    padding: 1.5rem 1rem;
  }
  
  .process-step,
  .service-feature {
    padding: 1.5rem 1rem;
  }
}

/* Services页面图片样式优化 */
.service-item .service-image {
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius-xl);
  background: var(--gray-100);
  aspect-ratio: 16/10;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.service-item .service-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: var(--transition-slow);
  filter: brightness(0.95) contrast(1.05);
}

.service-item:hover .service-image {
  box-shadow: var(--shadow-xl);
  transform: scale(1.02);
}

.service-item:hover .service-image img {
  transform: scale(1.1);
  filter: brightness(1.05) contrast(1.1);
}

/* Services页面图片加载状态 */
.service-item .service-image::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-100) 50%, var(--gray-200) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  z-index: 1;
  opacity: 1;
  transition: opacity 0.3s ease;
}

.service-item .service-image img[src] {
  z-index: 2;
  position: relative;
}

.service-item .service-image img[src] + .service-image::before {
  opacity: 0;
}

/* Services页面图片覆盖层效果 */
.service-item .service-image::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(59, 130, 246, 0.05) 100%);
  opacity: 0;
  transition: var(--transition);
  z-index: 3;
  pointer-events: none;
}

.service-item:hover .service-image::after {
  opacity: 1;
}

/* Services页面服务项目整体优化 */
.service-item {
  background: var(--white);
  border-radius: var(--border-radius-xl);
  padding: 2rem;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--gray-200);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
  transform: scaleX(0);
  transition: var(--transition);
}

.service-item:hover::before {
  transform: scaleX(1);
}

.service-item:hover {
  transform: translateY(-8px);
  box-shadow: var(--card-hover-shadow);
  border-color: var(--primary-200);
}

/* Services页面服务覆盖层优化 */
.service-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.9) 0%, rgba(59, 130, 246, 0.8) 100%);
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  padding: 1.5rem;
  opacity: 0;
  transition: var(--transition);
  z-index: 4;
}

.service-item:hover .service-overlay {
  opacity: 1;
}

.service-badges {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.service-badges .badge {
  background: var(--white);
  color: var(--primary);
  font-size: 0.75rem;
  padding: 0.25rem 0.75rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Services页面响应式优化 */
@media (max-width: 768px) {
  .service-item .service-image {
    aspect-ratio: 4/3;
    margin-bottom: 1rem;
  }
  
  .service-item {
    padding: 1.5rem;
  }
  
  .service-overlay {
    padding: 1rem;
  }
  
  .service-badges {
    flex-direction: row;
    flex-wrap: wrap;
  }
}

@media (max-width: 480px) {
  .service-item .service-image {
    aspect-ratio: 3/2;
  }
  
  .service-item {
    padding: 1rem;
  }
  
  .service-overlay {
    padding: 0.75rem;
  }
  
  .service-badges .badge {
    font-size: 0.7rem;
    padding: 0.2rem 0.5rem;
  }
}

/* Services页面图片懒加载优化 */
.service-item .service-image img {
  opacity: 1; /* 改为1，确保图片默认显示 */
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.service-item .service-image img.loaded {
  opacity: 1;
}

/* Services页面图片错误状态 */
.service-item .service-image.error::before {
  content: '📱';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 3rem;
  opacity: 0.3;
  z-index: 1;
}

/* Services页面图片加载进度指示器 */
.service-item .service-image.loading::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: var(--primary);
  transition: width 0.3s ease;
  z-index: 4;
}

.service-item .service-image.loading.loading-25::after { width: 25%; }
.service-item .service-image.loading.loading-50::after { width: 50%; }
.service-item .service-image.loading.loading-75::after { width: 75%; }
.service-item .service-image.loading.loading-100::after { width: 100%; }

/* Services页面图片质量优化 */
.service-item .service-image img {
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
  backface-visibility: hidden;
}

/* Services页面高分辨率屏幕优化 */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .service-item .service-image img {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
  }
}

/* Services页面图片容器的最小高度确保一致性 */
.service-item .service-image {
  min-height: 200px;
}

@media (max-width: 768px) {
  .service-item .service-image {
    min-height: 150px;
  }
}

@media (max-width: 480px) {
  .service-item .service-image {
    min-height: 120px;
  }
}

/* 响应式设计 - 移动端导航 */
@media (max-width: 768px) {
  /* 隐藏桌面导航 */
  .desktop-nav {
    display: none;
  }

  /* 显示移动菜单按钮 */
  .mobile-menu-btn {
    display: flex;
  }

  /* 调整头部操作区域 */
  .header-actions {
    gap: 0.75rem;
  }

  /* 调整语言切换按钮 */
  .lang-switch {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
  }

  /* 调整英雄区域内容 */
  .hero-content h1 { 
    font-size: 2rem; 
  }

  .hero-content p {
    font-size: 1.1rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .hero-btn {
    width: 100%;
    max-width: 280px;
    justify-content: center;
  }

  /* 调整标题和描述 */
  .section-title { 
    font-size: 2rem; 
  }

  .section-description {
    font-size: 1rem;
  }

  /* 调整服务网格 */
  .service-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  /* 调整流程步骤 */
  .process-steps {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  /* 调整评价网格 */
  .testimonial-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  /* 调整联系项目 */
  .contact-item {
    flex-direction: column;
    text-align: center;
    gap: 1rem;
  }

  /* 调整页脚内容 */
  .footer-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  /* 调整WhatsApp浮动按钮 */
  .whatsapp-float {
    width: 56px;
    height: 56px;
    font-size: 1.25rem;
  }

  /* 调整评估CTA */
  .evaluation-cta {
    padding: 2rem 1.5rem;
  }

  .evaluation-cta h3 {
    font-size: 1.75rem;
  }

  .evaluation-cta p {
    font-size: 1rem;
  }

  /* 响应式图片优化 */
  .service-image {
    aspect-ratio: 4/3;
    margin-bottom: 1rem;
  }
  
  .service-card {
    padding: 1.5rem;
  }

  /* 联系页面响应式 */
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .contact-cta .space-x-4 {
    flex-direction: column;
  }
  
  .contact-cta .btn-modern {
    width: 100%;
  }
  
  .stats-section .grid-auto-fit {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
  
  .stats-section .text-3xl {
    font-size: 2rem;
  }

  /* 联系信息网格 */
  .contact-info-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .contact-card {
    padding: 1.5rem;
  }

  .contact-icon {
    width: 48px;
    height: 48px;
    font-size: 1.25rem;
  }

  /* 地图和表单 */
  .map-section {
    margin-top: 2rem;
  }

  .map-container {
    height: 300px;
  }

  .contact-form-container {
    margin-top: 2rem;
  }

  .captcha-container {
    flex-direction: column;
    gap: 1rem;
  }

  .captcha-image {
    width: 100%;
    max-width: 200px;
  }

  /* 使命愿景网格 */
  .mission-vision-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .mission-card,
  .vision-card {
    padding: 2rem;
  }

  .card-icon {
    width: 48px;
    height: 48px;
    font-size: 1.25rem;
  }

  .card-content h3 {
    font-size: 1.5rem;
  }

  /* 价值观网格 */
  .values-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .value-card {
    padding: 1.5rem;
  }

  /* 认证网格 */
  .certifications-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .certification-card {
    padding: 1.5rem;
  }

  /* 流程步骤 */
  .process-steps {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .process-step {
    padding: 1.5rem;
  }

  .step-number {
    width: 40px;
    height: 40px;
    font-size: 1.125rem;
  }

  /* 品牌网格 */
  .brands-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  .brand-card {
    padding: 1.5rem;
  }

  .brand-icon {
    width: 48px;
    height: 48px;
    font-size: 1.25rem;
  }

  /* 服务特性网格 */
  .service-features-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .service-feature {
    padding: 1.5rem;
  }

  .feature-header {
    flex-direction: column;
    text-align: center;
    gap: 1rem;
  }

  .feature-icon {
    width: 48px;
    height: 48px;
    font-size: 1.25rem;
  }

  /* 组件展示 */
  .component-group {
    padding: 1.5rem;
  }

  .component-demo {
    padding: 1rem;
  }

  .component-demo .space-x-4 {
    flex-direction: column;
    gap: 1rem;
  }

  .component-demo .space-x-4 > * {
    width: 100%;
  }

  /* 服务项目图片 */
  .service-item .service-image {
    aspect-ratio: 4/3;
    margin-bottom: 1rem;
  }

  .service-item {
    padding: 1.5rem;
  }

  .service-overlay {
    padding: 1rem;
  }

  .service-badges {
    flex-direction: column;
    gap: 0.5rem;
  }
}

@media (max-width: 480px) {
  /* 调整根变量 */
  :root {
    --section-padding: 3rem 0 3rem 0;
    --header-height: 60px;
  }

  /* 调整容器内边距 */
  .container, .footer-content, .header-container { 
    padding-left: 1rem; 
    padding-right: 1rem; 
  }

  /* 调整logo */
  .logo-container img { 
    height: 36px; 
  }

  .logo-text { 
    font-size: 1.25rem; 
  }

  /* 调整移动菜单按钮 */
  .mobile-menu-btn {
    width: 40px;
    height: 40px;
    padding: 0.6rem;
  }

  .hamburger-line {
    width: 18px;
    height: 2px;
    margin: 2px 0;
  }

  /* 调整英雄区域 */
  .hero-content {
    padding: 0 1rem;
  }

  .hero-content h1 { 
    font-size: 1.75rem; 
  }

  .hero-content p {
    font-size: 1rem;
  }

  .hero-btn {
    padding: 0.875rem 1.5rem;
    font-size: 0.95rem;
  }

  /* 调整标题和描述 */
  .section-title { 
    font-size: 1.75rem; 
  }

  .section-description {
    font-size: 0.95rem;
  }

  /* 调整服务项目 */
  .service-item {
    padding: 1.5rem;
  }
  
  .service-details h3 {
    font-size: 1.25rem;
  }
  
  .feature-content h3 {
    font-size: 1.125rem;
  }
  
  .service-features {
    flex-direction: column;
  }
  
  .service-features .badge {
    width: fit-content;
  }

  /* 响应式图片优化 */
  .service-image {
    aspect-ratio: 3/2;
  }
  
  .service-card {
    padding: 1rem;
  }

  /* 统计部分 */
  .stats-section .grid-auto-fit {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .stats-section .text-3xl {
    font-size: 1.75rem;
  }
  
  .contact-cta .glass-effect {
    padding: 2rem 1.5rem;
  }

  /* 品牌网格 */
  .brands-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .brand-card {
    padding: 1rem;
  }

  /* 流程步骤 */
  .process-step,
  .service-feature {
    padding: 1rem;
  }

  /* 服务项目图片 */
  .service-item .service-image {
    aspect-ratio: 3/2;
  }

  .service-item {
    padding: 1rem;
  }

  .service-overlay {
    padding: 0.75rem;
  }

  .service-badges .badge {
    font-size: 0.7rem;
    padding: 0.2rem 0.5rem;
  }

  /* 组件展示 */
  .component-group {
    padding: 1rem;
  }

  .component-title {
    font-size: 1.25rem;
  }

  .component-demo {
    padding: 0.75rem;
  }

  /* 移动导航 */
  .mobile-nav {
    max-width: 100%;
  }
  
  .mobile-nav-list {
    padding: 4rem 1rem 2rem;
  }
  
  .mobile-nav-close {
    width: 36px;
    height: 36px;
    top: 0.75rem;
    right: 0.75rem;
  }
  
  .mobile-nav-close i {
    font-size: 1rem;
  }
}

/* 服务卡片头部布局 */
.service-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1rem;
}

.service-header h3 {
  flex: 1;
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--gray-900);
}

.service-icon {
  flex-shrink: 0;
  transition: var(--transition);
}

.service-card:hover .service-icon {
  transform: scale(1.1);
}

/* 服务特性样式 */
.service-features {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.service-features .badge {
  font-size: 0.75rem;
  padding: 0.25rem 0.5rem;
}

/* 联系项目样式 */
.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem;
  border-radius: var(--border-radius-lg);
  transition: var(--transition);
}

.contact-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.contact-details h4 {
  margin: 0 0 0.5rem 0;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--gray-900);
}

.contact-details p {
  margin: 0;
  color: var(--gray-600);
}

.contact-details a {
  transition: var(--transition);
}

.contact-details a:hover {
  color: var(--primary-dark) !important;
}

/* 页脚样式增强 */
.footer {
  position: relative;
  overflow: hidden;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(147, 51, 234, 0.1) 100%);
  pointer-events: none;
}

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

.footer-header {
  position: relative;
}

.footer-logo {
  transition: var(--transition);
}

.footer:hover .footer-logo {
  transform: rotate(360deg);
}

.footer-links a {
  position: relative;
  overflow: hidden;
}

.footer-links a::before {
  content: '';
  position: absolute;
  left: -100%;
  top: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.2), transparent);
  transition: var(--transition);
}

.footer-links a:hover::before {
  left: 100%;
}

.footer-links a:hover {
  color: var(--primary) !important;
  transform: translateX(4px);
}

/* CTA图标动画 */
.cta-icon {
  transition: var(--transition);
}

.contact-cta:hover .cta-icon {
  transform: scale(1.1) rotate(5deg);
}

/* 响应式调整 */
@media (max-width: 768px) {
  .service-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }
  
  .service-icon {
    align-self: flex-start;
  }
  
  .contact-item {
    flex-direction: column;
    text-align: center;
    gap: 1rem;
  }
  
  .contact-icon {
    margin: 0 auto;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-header {
    justify-content: center;
  }
}

/* 悬停效果增强 */
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

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

.step:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.step:hover .step-icon {
  transform: scale(1.1);
}

/* 加载动画 */
@keyframes shimmer {
  0% {
    background-position: -200px 0;
  }
  100% {
    background-position: calc(200px + 100%) 0;
  }
}

.loading-shimmer {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200px 100%;
  animation: shimmer 1.5s infinite;
}

/* 渐变文字效果 */
.gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 浮动动画 */
@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

.floating {
  animation: float 3s ease-in-out infinite;
}

/* 脉冲动画 */
@keyframes pulse {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.05);
    opacity: 0.8;
  }
}

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

/* 旋转动画 */
@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.spin {
  animation: spin 2s linear infinite;
}

/* 弹跳动画 */
@keyframes bounce {
  0%, 20%, 53%, 80%, 100% {
    transform: translate3d(0, 0, 0);
  }
  40%, 43% {
    transform: translate3d(0, -30px, 0);
  }
  70% {
    transform: translate3d(0, -15px, 0);
  }
  90% {
    transform: translate3d(0, -4px, 0);
  }
}

.bounce {
  animation: bounce 1s ease-in-out;
}

/* 淡入动画 */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

/* 滑入动画 */
@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.slide-in-left {
  animation: slideInLeft 0.6s ease-out;
}

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

.slide-in-right {
  animation: slideInRight 0.6s ease-out;
}

/* 缩放动画 */
@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.scale-in {
  animation: scaleIn 0.6s ease-out;
}

/* 工具提示样式 */
.tooltip {
  position: relative;
  display: inline-block;
}

.tooltip .tooltiptext {
  visibility: hidden;
  width: 120px;
  background-color: var(--gray-900);
  color: var(--white);
  text-align: center;
  border-radius: var(--border-radius-md);
  padding: 0.5rem;
  position: absolute;
  z-index: 1000;
  bottom: 125%;
  left: 50%;
  margin-left: -60px;
  opacity: 0;
  transition: opacity 0.3s;
  font-size: 0.875rem;
}

.tooltip .tooltiptext::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -5px;
  border-width: 5px;
  border-style: solid;
  border-color: var(--gray-900) transparent transparent transparent;
}

.tooltip:hover .tooltiptext {
  visibility: visible;
  opacity: 1;
}

/* 进度条样式 */
.progress-bar {
  width: 100%;
  height: 8px;
  background-color: var(--gray-200);
  border-radius: var(--border-radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
  border-radius: var(--border-radius-full);
  transition: width 0.3s ease;
}

/* 状态指示器 */
.status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0.75rem;
  border-radius: var(--border-radius-full);
  font-size: 0.875rem;
  font-weight: 500;
}

.status-indicator.success {
  background-color: var(--success-100);
  color: var(--success-700);
}

.status-indicator.warning {
  background-color: var(--warning-100);
  color: var(--warning-700);
}

.status-indicator.error {
  background-color: var(--error-100);
  color: var(--error-700);
}

.status-indicator.info {
  background-color: var(--primary-100);
  color: var(--primary-700);
}

.status-indicator::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: currentColor;
}

/* 卡片悬停效果增强 */
.glass-effect {
  transition: all 0.3s ease;
}

.glass-effect:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

/* 按钮悬停效果增强 */
.btn-modern:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn-modern:active {
  transform: translateY(0);
}

/* 图片悬停效果 */
.service-image {
  overflow: hidden;
  border-radius: var(--border-radius-lg);
}

.service-image img {
  transition: transform 0.3s ease;
}

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

/* 图标悬停效果 */
.contact-icon,
.step-icon,
.feature-icon {
  transition: all 0.3s ease;
}

.contact-item:hover .contact-icon,
.step:hover .step-icon,
.feature-card:hover .feature-icon {
  transform: scale(1.1) rotate(5deg);
}

/* 链接悬停效果 */
.service-link {
  transition: all 0.3s ease;
}

.service-link:hover {
  transform: translateX(4px);
}

.service-link:hover i {
  transform: translateX(4px);
}

/* 徽章悬停效果 */
.badge {
  transition: all 0.3s ease;
}

.badge:hover {
  transform: scale(1.05);
}

/* 响应式网格优化 */
@media (max-width: 1024px) {
  .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .service-grid {
    grid-template-columns: 1fr;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

/* 无障碍改进 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
  .glass-effect {
    background: var(--white);
    border: 2px solid var(--gray-900);
  }
  
  .btn-modern {
    border: 2px solid currentColor;
  }
}

/* 打印样式优化 */
@media print {
  .glass-effect {
    background: white !important;
    box-shadow: none !important;
    border: 1px solid #ccc !important;
  }
  
  .btn-modern {
    background: white !important;
    color: black !important;
    border: 1px solid black !important;
  }
  
  .service-image {
    display: none;
  }
}

/* 增强的卡片悬停效果 */
.enhanced-card:hover .card-glow,
.enhanced-step:hover .step-number,
.enhanced-testimonial:hover .testimonial-quote,
.enhanced-feature:hover .feature-glow,
.enhanced-contact:hover .contact-glow {
  transform: scaleX(1);
}

/* 增强的卡片悬停动画 */
.enhanced-card:hover,
.enhanced-step:hover,
.enhanced-testimonial:hover,
.enhanced-feature:hover,
.enhanced-contact:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

/* 滚动指示器动画 */
@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-10px);
  }
  60% {
    transform: translateY(-5px);
  }
}

/* 背景图案动画 */
.services-bg-pattern,
.process-bg-pattern,
.testimonials-bg-pattern,
.features-bg-pattern,
.contact-bg-pattern,
.cta-bg-pattern,
.stats-bg-pattern {
  animation: float 20s ease-in-out infinite;
}

/* 增强的按钮悬停效果 */
.btn-modern:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-modern:active {
  transform: translateY(0);
}

/* 增强的徽章样式 */
.section-badge,
.hero-badge,
.cta-badge {
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

.section-badge:hover,
.hero-badge:hover,
.cta-badge:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* 增强的图标悬停效果 */
.service-icon:hover,
.step-icon:hover,
.feature-icon:hover,
.contact-icon:hover,
.cta-icon:hover {
  transform: scale(1.1) rotate(5deg);
  transition: all 0.3s ease;
}

/* 增强的评分星星动画 */
.testimonial-rating i {
  transition: all 0.3s ease;
}

.testimonial-rating:hover i {
  transform: scale(1.2);
  color: var(--warning);
}

/* 增强的作者头像悬停效果 */
.author-avatar:hover {
  transform: scale(1.1);
  transition: all 0.3s ease;
}

/* 增强的统计数字动画 */
.stat-number {
  transition: all 0.3s ease;
}

.stat-item:hover .stat-number {
  transform: scale(1.1);
  color: var(--white);
}

/* 增强的链接悬停效果 */
.service-link:hover {
  transform: translateX(5px);
  transition: all 0.3s ease;
}

/* 增强的导航链接悬停效果 */
.nav-list li a:hover,
.mobile-nav-list li a:hover {
  transform: translateY(-2px);
  transition: all 0.3s ease;
}

/* 增强的页脚链接悬停效果 */
.footer-links a:hover {
  transform: translateX(5px);
  transition: all 0.3s ease;
}

/* 增强的WhatsApp浮动按钮 */
.whatsapp-float:hover {
  transform: scale(1.1) rotate(5deg);
  box-shadow: var(--shadow-xl);
  transition: all 0.3s ease;
}

/* 增强的移动端菜单按钮 */
.mobile-menu-btn:hover {
  transform: scale(1.05);
  transition: all 0.3s ease;
}

/* 增强的语言切换按钮 */
.lang-switch:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
}

/* 增强的关闭按钮 */
.mobile-nav-close:hover {
  transform: rotate(90deg);
  transition: all 0.3s ease;
}

/* 增强的图片悬停效果 */
.service-image:hover img {
  transform: scale(1.05);
  transition: all 0.3s ease;
}

/* 增强的覆盖层动画 */
.service-image-overlay {
  transition: all 0.3s ease;
}

.service-card:hover .service-image-overlay {
  transform: translateY(0);
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
}

/* 增强的加载动画 */
@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

.loading-shimmer {
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

/* 增强的渐变文本效果 */
.gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 增强的玻璃效果 */
.glass-effect {
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all 0.3s ease;
}

.glass-effect:hover {
  backdrop-filter: blur(30px);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-5px);
}

/* 增强的响应式设计 */
@media (max-width: 768px) {
  .hero-stats {
    flex-direction: column;
    gap: 1rem;
  }
  
  .cta-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .testimonial-grid {
    grid-template-columns: 1fr;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-stats .stat-number {
    font-size: 1.5rem;
  }
  
  .section-badge,
  .hero-badge,
  .cta-badge {
    font-size: 0.75rem;
    padding: 0.5rem 0.75rem;
  }
}

/* 增强的可访问性 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* 增强的高对比度模式 */
@media (prefers-contrast: high) {
  .glass-effect {
    border: 2px solid var(--gray-900);
    background: var(--white);
  }
  
  .btn-modern {
    border: 2px solid currentColor;
  }
}

/* 增强的打印样式 */
@media print {
  .glass-effect {
    background: var(--white);
    border: 1px solid var(--gray-300);
    box-shadow: none;
  }
  
  .btn-modern {
    border: 1px solid var(--gray-900);
    background: var(--white);
    color: var(--gray-900);
  }
  
  .service-image {
    break-inside: avoid;
  }
}

/* 页脚背景图案动画 */
.footer-bg-pattern {
  animation: float 25s ease-in-out infinite;
}

/* 增强的页脚链接悬停效果 */
.footer-links a:hover {
  color: var(--primary) !important;
  transform: translateX(5px);
  transition: all 0.3s ease;
}

.footer-links p:hover {
  transform: translateX(5px);
  transition: all 0.3s ease;
}

/* 增强的页脚logo悬停效果 */
.footer-logo:hover {
  transform: scale(1.1) rotate(5deg);
  transition: all 0.3s ease;
}

/* 增强的页脚标题渐变效果 */
.footer-section h3 {
  transition: all 0.3s ease;
}

.footer-section:hover h3 {
  transform: translateY(-2px);
  transition: all 0.3s ease;
}

/* 增强的联系信息悬停效果 */
.footer-links a[href^="mailto:"]:hover,
.footer-links a[href^="tel:"]:hover {
  color: var(--success) !important;
}

.footer-links a[href*="wa.me"]:hover {
  color: var(--success) !important;
}

/* 增强的版权信息样式 */
.copyright {
  transition: all 0.3s ease;
}

.footer-bottom:hover .copyright {
  color: var(--gray-300);
  transition: all 0.3s ease;
}

/* 增强的响应式页脚 */
@media (max-width: 768px) {
  .footer-content {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
  
  .footer-section {
    text-align: center;
  }
  
  .footer-header {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .footer-content {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .footer-section {
    text-align: center;
  }
  
  .footer-links {
    justify-content: center;
  }
  
  .footer-links a,
  .footer-links p {
    justify-content: center;
  }
}

/* 移动端按钮对齐优化 */
@media (max-width: 768px) {
  .cta-actions {
    flex-direction: column !important;
    gap: 1rem !important;
    width: 100%;
  }
  
  .cta-actions .btn-modern {
    width: 100% !important;
    min-width: unset !important;
    flex: none !important;
  }
}

@media (max-width: 480px) {
  .cta-actions {
    gap: 0.75rem !important;
  }
  
  .cta-actions .btn-modern {
    padding: 0.875rem 1rem !important;
    font-size: 0.875rem !important;
  }
}

/* 回收页面专用样式 */
.enhanced-service:hover .service-glow,
.enhanced-step:hover .step-glow,
.enhanced-contact:hover .contact-glow {
  transform: scaleX(1) !important;
}

.enhanced-service:hover,
.enhanced-step:hover,
.enhanced-contact:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.stat-card {
  transition: all 0.3s ease;
}

.stat-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.enhanced-btn {
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.enhanced-btn::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 0.5s ease;
}

.enhanced-btn:hover::before {
  left: 100%;
}

.enhanced-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* 统计卡片动画 */
@keyframes countUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.stat-card {
  animation: countUp 0.6s ease forwards;
}

.stat-card:nth-child(1) { animation-delay: 0.1s; }
.stat-card:nth-child(2) { animation-delay: 0.2s; }
.stat-card:nth-child(3) { animation-delay: 0.3s; }

/* 服务卡片悬停效果 */
.service-section {
  transition: all 0.3s ease;
}

.service-section:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.service-section:hover .service-icon {
  transform: scale(1.1) rotate(5deg);
}

.service-icon {
  transition: all 0.3s ease;
}

/* 品牌项目悬停效果 */
.brand-item,
.feature-item {
  transition: all 0.3s ease;
}

.brand-item:hover,
.feature-item:hover {
  transform: translateX(5px);
  box-shadow: var(--shadow-md);
}

/* 徽章动画 */
.badge {
  transition: all 0.3s ease;
}

.badge:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-md);
}

/* 联系卡片悬停效果 */
.contact-info {
  transition: all 0.3s ease;
}

.contact-info:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.contact-info:hover .contact-icon {
  transform: scale(1.1) rotate(5deg);
}

.contact-icon {
  transition: all 0.3s ease;
}

/* 流程步骤悬停效果 */
.step {
  transition: all 0.3s ease;
}

.step:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.step:hover .step-number {
  transform: scale(1.1);
}

.step-number {
  transition: all 0.3s ease;
}

/* 响应式优化 */
@media (max-width: 768px) {
  .stats-cards {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .process-steps {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .service-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

@media (max-width: 480px) {
  .stat-card {
    padding: 1.5rem 1rem;
  }
  
  .contact-content {
    padding: 1.5rem 1rem;
  }
  
  .step-content {
    padding: 1.5rem 1rem;
  }
}

/* Enhanced hover effects for recycle pages */
.enhanced-service:hover .service-glow,
.enhanced-step:hover .step-glow,
.contact-card:hover .contact-card-glow {
  transform: scaleX(1);
}

.enhanced-service:hover,
.enhanced-step:hover,
.contact-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.stat-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.stat-card:hover .stat-icon {
  transform: scale(1.1);
}

.contact-card:hover .contact-icon {
  transform: scale(1.1);
}

.enhanced-step:hover .step-number {
  transform: scale(1.1);
}

.enhanced-step:hover .step-icon {
  transform: scale(1.1);
}

/* Button shine effect */
.btn-modern {
  position: relative;
  overflow: hidden;
}

.btn-modern::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 0.5s;
}

.btn-modern:hover::before {
  left: 100%;
}

/* Card elevation animation */
.glass-effect {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.glass-effect:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* Responsive adjustments for mobile */
@media (max-width: 768px) {
  .stats-cards {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .process-steps {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .enhanced-service:hover,
  .enhanced-step:hover,
  .contact-card:hover {
    transform: translateY(-4px);
  }
  
  .stat-card:hover {
    transform: translateY(-3px);
  }
}