/* 牙和家友官网 - 共享样式 */
/* 风格：极简、时尚、医疗 */

:root {
  /* 品牌色 */
  --primary-color: #01B472; /* 品牌绿 - 健康、信任 */
  --primary-light: #E8F8F0; /* 浅绿背景 */
  --primary-dark: #009A5F; /* 深绿 */
  
  /* 极简黑白灰配色 */
  --bg-primary: #FFFFFF; /* 纯白背景 */
  --bg-secondary: #FAFAFA; /* 浅灰背景 */
  --bg-card: #FFFFFF; /* 卡片背景 */
  --warm-beige: #FDF8F3; /* 温暖米色背景 */
  
  /* 文字颜色 */
  --text-primary: #1A1A1A; /* 纯黑 - 主标题 */
  --text-secondary: #666666; /* 中灰 - 正文 */
  --text-light: #999999; /* 浅灰 - 辅助文字 */
  --text-muted: #CCCCCC; /* 极浅灰 - 占位文字 */
  
  /* 边框与分割线 */
  --border-color: #EEEEEE; /* 浅灰边框 */
  --border-light: #F5F5F5; /* 极浅边框 */
  
  /* 间距系统 */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;
  --spacing-xxxl: 4rem;
  
  /* 圆角 */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  
  /* 阴影 */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.08);
  --shadow-xl: 0 12px 48px rgba(0, 0, 0, 0.1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text-primary);
  background-color: #FFFFFF;
  line-height: 1.7;
  font-size: 15px;
  letter-spacing: 0.02em;
}

/* 容器 */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* 导航栏 */
.navbar {
  background: var(--soft-cream);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: var(--spacing-md) 0;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--primary-color);
  text-decoration: none;
  transition: opacity 0.3s ease;
}

.logo:hover {
  opacity: 0.8;
}

.logo-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.1rem;
  box-shadow: 0 4px 12px rgba(74, 144, 184, 0.25);
}

.nav-links {
  display: flex;
  gap: var(--spacing-xl);
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: all 0.3s ease;
  position: relative;
  padding: var(--spacing-sm) 0;
}

.nav-links a:hover {
  color: var(--primary-color);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  border-radius: 1px;
  transition: width 0.3s ease;
}

.nav-links a:hover::after {
  width: 100%;
}

/* Hero区域 */
.hero {
  background: linear-gradient(180deg, var(--warm-beige) 0%, var(--soft-cream) 100%);
  padding: var(--spacing-xxxl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -15%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(74, 144, 184, 0.08) 0%, transparent 60%);
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -20%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(107, 191, 138, 0.06) 0%, transparent 60%);
  border-radius: 50%;
}

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

.hero h1 {
  font-size: 2.8rem;
  color: var(--text-primary);
  margin-bottom: var(--spacing-lg);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.hero .subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
  max-width: 650px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.8;
}

.hero .tagline {
  font-size: 1.4rem;
  color: var(--primary-color);
  font-weight: 500;
  margin-bottom: var(--spacing-xxl);
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--primary-light);
  border-radius: var(--radius-xl);
}

/* 卡片 */
.card {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  margin-bottom: var(--spacing-lg);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid rgba(0, 0, 0, 0.03);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}

.card-gradient {
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--soft-cream) 100%);
}

/* 内容区块 */
.section {
  padding: var(--spacing-xxxl) 0;
}

.section-title {
  font-size: 2.2rem;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xl);
  text-align: center;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.section-title::after {
  content: '';
  display: block;
  width: 50px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  margin: var(--spacing-md) auto 0;
  border-radius: 2px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: var(--spacing-xxl);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* 网格布局 */
.grid {
  display: grid;
  gap: var(--spacing-xl);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.grid-5 {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md) var(--spacing-xxl);
  border-radius: var(--radius-xl);
  font-weight: 500;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: none;
  cursor: pointer;
  font-size: 1rem;
  gap: var(--spacing-sm);
}

.btn-primary {
  background-color: var(--primary-color);
  color: white;
  box-shadow: 0 4px 16px rgba(1, 180, 114, 0.25);
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(1, 180, 114, 0.35);
}

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

.btn-secondary:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid rgba(0, 0, 0, 0.1);
}

.btn-outline:hover {
  background: var(--warm-beige);
  border-color: var(--primary-color);
  color: var(--primary-color);
}

/* 团队成员卡片 */
.team-member {
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-lg);
}

.team-avatar {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  margin: 0 auto var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.5rem;
  color: var(--primary-color);
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
}

.team-member:hover .team-avatar {
  transform: scale(1.05);
  box-shadow: var(--shadow-lg);
}

.team-member h3 {
  font-size: 1.3rem;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
}

.team-member .role {
  color: var(--primary-color);
  font-weight: 500;
  margin-bottom: var(--spacing-md);
  font-size: 0.95rem;
}

.team-member p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* 数值展示 */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--spacing-lg);
  margin: var(--spacing-xxl) 0;
}

.stat-item {
  text-align: center;
  padding: var(--spacing-xl);
  background: var(--soft-cream);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.stat-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
  line-height: 1.2;
}

.stat-label {
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
}

/* 列表样式 */
.feature-list {
  list-style: none;
  padding: var(--spacing-md) 0;
}

.feature-list li {
  padding: var(--spacing-md) 0;
  padding-left: var(--spacing-xl);
  position: relative;
  color: var(--text-secondary);
  font-size: 0.95rem;
  transition: padding-left 0.3s ease;
}

.feature-list li:hover {
  padding-left: calc(var(--spacing-xl) + 8px);
}

.feature-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
}

.feature-list li::before {
  content: '✓';
}

/* 页脚 */
.footer {
  background: linear-gradient(180deg, var(--warm-beige) 0%, var(--soft-cream) 100%);
  padding: var(--spacing-xxxl) 0;
  margin-top: var(--spacing-xxxl);
  border-top: 1px solid rgba(0, 0, 0, 0.03);
}

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

.footer-section h3 {
  color: var(--text-primary);
  margin-bottom: var(--spacing-lg);
  font-size: 1.15rem;
  font-weight: 600;
}

.footer-section p,
.footer-section a {
  color: var(--text-secondary);
  line-height: 1.8;
  text-decoration: none;
  display: block;
  font-size: 0.95rem;
  transition: color 0.3s ease;
}

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

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-xxl);
  margin-top: var(--spacing-xxl);
  border-top: 1px solid rgba(0, 0, 0, 0.05);
  color: var(--text-light);
  font-size: 0.85rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2rem;
  }
  
  .hero .subtitle {
    font-size: 1rem;
  }
  
  .hero .tagline {
    font-size: 1.1rem;
  }
  
  .nav-links {
    display: none;
  }
  
  .section-title {
    font-size: 1.6rem;
  }
  
  .container {
    padding: 0 var(--spacing-md);
  }
  
  .stats {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .stat-number {
    font-size: 2.2rem;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: var(--spacing-xxl) 0;
  }
  
  .hero h1 {
    font-size: 1.6rem;
  }
  
  .section {
    padding: var(--spacing-xxl) 0;
  }
  
  .stats {
    grid-template-columns: 1fr;
  }
  
  .grid-2,
  .grid-3,
  .grid-5 {
    grid-template-columns: 1fr;
  }
}

/* 弹窗样式 */
.modal {
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0, 0, 0, 0.5);
  animation: fadeIn 0.3s ease;
}

.modal-content {
  background-color: white;
  margin: 15% auto;
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 400px;
  box-shadow: var(--shadow-xl);
  animation: fadeInUp 0.3s ease;
  position: relative;
}

.modal-content h3 {
  color: var(--text-primary);
  font-size: 1.3rem;
  margin-bottom: 0;
  text-align: center;
}

.close {
  color: var(--text-light);
  float: right;
  font-size: 28px;
  font-weight: bold;
  cursor: pointer;
  transition: color 0.3s ease;
  line-height: 1;
}

.close:hover,
.close:focus {
  color: var(--text-primary);
  text-decoration: none;
  cursor: pointer;
}

/* 动画 */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

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

.fade-in {
  animation: fadeIn 0.8s ease-out forwards;
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out forwards;
}

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

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

/* 高亮文本 */
.highlight {
  color: var(--primary-color);
  font-weight: 600;
}

.highlight-gradient {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 600;
}

/* 引用块 */
.quote {
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--soft-cream) 100%);
  padding: var(--spacing-xxl);
  border-left: 4px solid var(--primary-color);
  border-radius: var(--radius-md);
  margin: var(--spacing-xl) 0;
  font-style: italic;
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.8;
}

.quote-author {
  margin-top: var(--spacing-md);
  font-style: normal;
  font-size: 0.9rem;
  color: var(--text-light);
}

/* 标签 */
.tag {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--bg-secondary);
  color: var(--text-secondary);
  border-radius: var(--radius-xl);
  font-size: 0.85rem;
  font-weight: 500;
  margin: var(--spacing-xs);
  transition: all 0.3s ease;
}

.tag:hover {
  background: var(--primary-color);
  color: white;
}

.tag-secondary {
  background: var(--secondary-light);
  color: var(--secondary-color);
}

.tag-secondary:hover {
  background: var(--secondary-color);
}

/* 分隔线 */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(74, 144, 184, 0.15), transparent);
  margin: var(--spacing-xxl) 0;
}

/* 进度条 */
.progress-bar {
  height: 8px;
  background: var(--warm-beige);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  border-radius: var(--radius-xl);
  transition: width 1s ease-out;
}

/* 表格样式 */
.data-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--spacing-lg) 0;
}

.data-table th,
.data-table td {
  padding: var(--spacing-md);
  text-align: left;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.data-table th {
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.data-table td {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.data-table tr:hover {
  background: var(--warm-beige);
}

/* 表单样式 */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
  font-weight: 500;
  font-size: 0.95rem;
}

.form-input {
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: var(--radius-md);
  font-size: 1rem;
  color: var(--text-primary);
  background: var(--soft-cream);
  transition: all 0.3s ease;
}

.form-input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(74, 144, 184, 0.1);
}

/* 卡片组 */
.card-group {
  display: grid;
  gap: var(--spacing-lg);
}

.card-group .card {
  margin-bottom: 0;
}

/* 徽章 */
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-success {
  background: var(--secondary-light);
  color: var(--secondary-color);
}

.badge-info {
  background: var(--primary-light);
  color: var(--primary-color);
}

.badge-warning {
  background: var(--accent-light);
  color: var(--accent-color);
}

/* 社交链接 */
.social-links {
  display: flex;
  gap: var(--spacing-md);
}

.social-links a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--soft-cream);
  border-radius: 50%;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.3s ease;
}

.social-links a:hover {
  background: var(--primary-color);
  color: white;
  transform: translateY(-2px);
}

/* 图片容器 */
.img-container {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
}

.img-container img {
  width: 100%;
  height: auto;
  transition: transform 0.4s ease;
}

.img-container:hover img {
  transform: scale(1.05);
}

/* 悬浮效果 */
.hover-lift {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

/* 文字渐变 */
.text-gradient {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 背景渐变 */
.bg-gradient-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.bg-gradient-warm {
  background: linear-gradient(135deg, var(--warm-beige), var(--soft-cream));
}

/* 边框效果 */
.border-gradient {
  position: relative;
  border-radius: var(--radius-lg);
}

.border-gradient::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
}

/* 发光效果 */
.glow {
  box-shadow: 0 0 30px rgba(74, 144, 184, 0.15);
}

.glow-primary {
  box-shadow: 0 0 40px rgba(74, 144, 184, 0.25);
}

/* 焦点样式 */
:focus {
  outline: none;
}

/* 选择文本样式 */
::selection {
  background: rgba(74, 144, 184, 0.15);
  color: var(--text-primary);
}

/* 相册样式 */
.gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.gallery-item {
  overflow: hidden;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.gallery-item:hover {
  transform: scale(1.03);
  box-shadow: var(--shadow-lg);
}

.gallery-main {
  grid-column: span 2;
}

@media (max-width: 768px) {
  .gallery {
    grid-template-columns: 1fr;
  }
  
  .gallery-main {
    grid-column: span 1;
  }
  
  .gallery-item img {
    height: 200px !important;
  }
}

/* 电梯导航样式 */
.elevator-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
}

.elevator-nav .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.elevator-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-xs) 0;
}

.elevator-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.elevator-links {
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-lg);
}

.elevator-link {
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 1rem;
  font-weight: 500;
  transition: all 0.3s ease;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
}

.elevator-link:hover {
  color: var(--primary-color);
  background: var(--primary-light);
}

.elevator-link.active {
  color: var(--primary-color);
  background: var(--primary-light);
}

.elevator-link.appt-link {
  background: var(--primary-color);
  color: white;
  padding: var(--spacing-sm) var(--spacing-lg);
}

.elevator-link.appt-link:hover {
  background: var(--primary-dark);
  color: white;
}

.elevator-link.appt-link.active {
  background: var(--primary-dark);
}

/* 平滑滚动 */
html {
  scroll-behavior: smooth;
  scroll-padding-top: 120px;
}

/* 移动端汉堡菜单按钮 */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 48px;
  height: 48px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  margin: 3px 0;
  transition: all 0.3s ease;
  border-radius: 1px;
}

.mobile-menu-btn.active span:nth-child(1) {
  transform: rotate(-45deg) translate(-5px, 5px);
}

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

.mobile-menu-btn.active span:nth-child(3) {
  transform: rotate(45deg) translate(-5px, -5px);
}

/* 移动端菜单 */
.mobile-menu {
  display: none;
  flex-direction: column;
  background: white;
  border-top: 1px solid var(--border-color);
  padding: var(--spacing-md) 0;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.mobile-menu.active {
  display: flex;
}

.mobile-link {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 1rem;
  font-weight: 500;
  transition: all 0.3s ease;
}

.mobile-link:hover {
  background: var(--primary-light);
  color: var(--primary-color);
}

.mobile-link.appt-link {
  background: var(--primary-color);
  color: white;
  margin: var(--spacing-md);
  border-radius: var(--radius-md);
}

.mobile-link.appt-link:hover {
  background: var(--primary-dark);
  color: white;
}

/* 案例卡片样式 */
.case-card {
  text-decoration: none;
  color: inherit;
  transition: all 0.3s ease;
  overflow: hidden;
}

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

/* 响应式电梯导航 */
@media (max-width: 768px) {
  .desktop-links {
    display: none;
  }
  
  .mobile-menu-btn {
    display: flex;
  }
  
  .elevator-nav .container {
    padding: 0 var(--spacing-sm);
  }
  
  .elevator-logo img {
    height: 50px !important;
  }
  
  .elevator-content {
    padding: var(--spacing-xs) 0;
  }
}