/* 基础重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #3b82f6;
  --primary-dark: #2563eb;
  --secondary: #64748b;
  --dark: #1e293b;
  --light: #f8fafc;
  --white: #ffffff;
  --gray: #64748b;
  --border: #e2e8f0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: var(--dark);
  background: var(--white);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 按钮样式 */
.btn {
  display: inline-block;
  padding: 10px 24px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
}

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

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

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

.btn-secondary:hover {
  background: var(--light);
}

.btn-outline {
  border: 2px solid var(--primary);
  color: var(--primary);
  background: transparent;
}

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

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

.btn-white:hover {
  background: var(--light);
}

.btn-large {
  padding: 14px 32px;
  font-size: 16px;
}

/* 导航栏 */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--white);
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  z-index: 1000;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.logo {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
}

.nav {
  display: flex;
  gap: 32px;
}

.nav-link {
  color: var(--dark);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

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

/* 横幅区域 */
.hero {
  min-height: 100vh;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 20px 80px;
}

.hero-content {
  max-width: 800px;
}

.hero h1 {
  font-size: 56px;
  color: var(--white);
  margin-bottom: 20px;
  line-height: 1.2;
}

.hero p {
  font-size: 20px;
  color: rgba(255,255,255,0.9);
  margin-bottom: 40px;
}

.hero-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
}

/* 通用区块 */
.section {
  padding: 80px 0;
}

.section-dark {
  background: var(--light);
}

.section-primary {
  background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
  color: var(--white);
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header h2 {
  font-size: 36px;
  color: var(--dark);
  margin-bottom: 12px;
}

.section-header p {
  font-size: 18px;
  color: var(--gray);
}

.section-primary .section-header h2,
.section-primary .section-header p {
  color: var(--white);
}

/* 目的地卡片 */
.destinations-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.destination-card {
  background: var(--white);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  transition: transform 0.3s, box-shadow 0.3s;
}

.destination-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.12);
}

.destination-image {
  height: 200px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.destination-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  background: rgba(255,255,255,0.9);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  color: var(--dark);
}

.destination-info {
  padding: 24px;
}

.destination-info h3 {
  font-size: 20px;
  margin-bottom: 10px;
  color: var(--dark);
}

.destination-info p {
  color: var(--gray);
  font-size: 14px;
  margin-bottom: 16px;
  line-height: 1.5;
}

.destination-meta {
  display: flex;
  justify-content: space-between;
  margin-bottom: 16px;
  font-size: 14px;
  color: var(--secondary);
}

.destination-meta span {
  background: var(--light);
  padding: 4px 12px;
  border-radius: 4px;
}

/* 服务卡片 */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 30px;
}

.service-card {
  background: var(--white);
  padding: 32px 24px;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 2px 12px rgba(0,0,0,0.05);
  transition: transform 0.3s;
}

.service-card:hover {
  transform: translateY(-4px);
}

.service-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.service-card h3 {
  font-size: 18px;
  color: var(--dark);
  margin-bottom: 10px;
}

.service-card p {
  font-size: 14px;
  color: var(--gray);
}

/* 关于我们 */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-text h2 {
  font-size: 36px;
  color: var(--dark);
  margin-bottom: 20px;
}

.about-text p {
  color: var(--gray);
  margin-bottom: 16px;
  line-height: 1.8;
}

.stats {
  display: flex;
  gap: 40px;
  margin-top: 32px;
}

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

.stat-item strong {
  display: block;
  font-size: 32px;
  color: var(--primary);
  margin-bottom: 4px;
}

.stat-item span {
  font-size: 14px;
  color: var(--gray);
}

.about-image-placeholder {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  height: 400px;
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--white);
}

.about-image-placeholder span {
  font-size: 80px;
  margin-bottom: 16px;
}

.about-image-placeholder p {
  font-size: 20px;
  color: rgba(255,255,255,0.9);
}

/* 联系我们 */
.contact-content {
  text-align: center;
}

.contact-content h2 {
  font-size: 36px;
  margin-bottom: 12px;
}

.contact-content > p {
  font-size: 18px;
  opacity: 0.9;
  margin-bottom: 40px;
}

.contact-info {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-bottom: 40px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* 页脚 */
.footer {
  background: var(--dark);
  color: var(--white);
  padding: 60px 0 20px;
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 60px;
  margin-bottom: 40px;
}

.footer-brand h3 {
  font-size: 24px;
  margin-bottom: 8px;
}

.footer-brand p {
  color: rgba(255,255,255,0.7);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.footer-column h4 {
  margin-bottom: 20px;
  font-size: 16px;
}

.footer-column a {
  display: block;
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  margin-bottom: 12px;
  font-size: 14px;
  transition: color 0.3s;
}

.footer-column a:hover {
  color: var(--white);
}

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 14px;
  color: rgba(255,255,255,0.5);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .header-content {
    flex-wrap: wrap;
    height: auto;
    padding: 16px 20px;
  }
  
  .nav {
    display: none;
    order: 3;
    width: 100%;
    flex-direction: column;
    gap: 16px;
    padding: 16px 0;
  }
  
  .nav.active {
    display: flex;
  }
  
  .hero h1 {
    font-size: 32px;
  }
  
  .hero p {
    font-size: 16px;
  }
  
  .hero-buttons {
    flex-direction: column;
  }
  
  .about-content {
    grid-template-columns: 1fr;
  }
  
  .contact-info {
    flex-direction: column;
    gap: 16px;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .footer-links {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .stats {
    flex-wrap: wrap;
    gap: 24px;
  }
}