/* 全局样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Arial', sans-serif;
  background-color: #0a0a1a;
  color: #e0e0e0;
  line-height: 1.6;
  overflow-x: hidden;
}

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

/* 头部导航 */
header {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.8rem;
  font-weight: bold;
  color: #06b6d4;
  text-decoration: none;
}

.nav-links {
  display: flex;
  list-style: none;
}

.nav-links li {
  margin-left: 2rem;
}

.nav-links a {
  color: #e0e0e0;
  text-decoration: none;
  transition: color 0.3s ease;
}

.nav-links a:hover {
  color: #06b6d4;
}

.cta-buttons {
  display: flex;
  gap: 1rem;
}

.btn {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 8px;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-block;
  text-align: center;
}

.btn-primary {
  background: linear-gradient(135deg, #06b6d4 0%, #0e7490 100%);
  color: white;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(6, 182, 212, 0.4);
}

.btn-secondary {
  background: transparent;
  color: #06b6d4;
  border: 2px solid #06b6d4;
}

.btn-secondary:hover {
  background: #06b6d4;
  color: white;
}

/* 英雄区域 */
.hero {
  background: linear-gradient(135deg, #0a0a1a 0%, #1e293b 100%);
  padding: 6rem 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('data:image/svg+xml;base64,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') repeat;
  opacity: 0.1;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.hero-text {
  flex: 1;
  padding-right: 2rem;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: bold;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  color: #94a3b8;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
}

.hero-image {
  flex: 1;
  display: flex;
  justify-content: center;
}

.hero-image img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 10px 25px rgba(6, 182, 212, 0.3);
}

/* 特点区域 */
.features {
  padding: 6rem 0;
  background: #0f172a;
}

.section-title {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title h2 {
  font-size: 2.5rem;
  font-weight: bold;
  margin-bottom: 1rem;
  color: #f8fafc;
}

.section-title p {
  font-size: 1.1rem;
  color: #94a3b8;
  max-width: 600px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid rgba(6, 182, 212, 0.1);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(6, 182, 212, 0.2);
  border-color: #06b6d4;
}

.feature-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, #06b6d4 0%, #0e7490 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
}

.feature-card h3 {
  font-size: 1.3rem;
  font-weight: bold;
  margin-bottom: 1rem;
  color: #f8fafc;
}

.feature-card p {
  color: #94a3b8;
  line-height: 1.6;
}

/* 数据统计 */
.stats {
  padding: 4rem 0;
  background: #1e293b;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  text-align: center;
}

.stat-item {
  padding: 1.5rem;
  background: rgba(15, 23, 42, 0.5);
  border-radius: 12px;
  border: 1px solid rgba(6, 182, 212, 0.1);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: bold;
  color: #06b6d4;
  margin-bottom: 0.5rem;
}

.stat-label {
  color: #94a3b8;
  font-size: 1rem;
}

/* 会员体系 */
.membership {
  padding: 6rem 0;
  background: #0f172a;
}

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

.membership-card {
  background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid rgba(6, 182, 212, 0.1);
  text-align: center;
}

.membership-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(6, 182, 212, 0.2);
  border-color: #06b6d4;
}

.membership-card.featured {
  border-color: #06b6d4;
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.3);
}

.membership-card h3 {
  font-size: 1.5rem;
  font-weight: bold;
  margin-bottom: 1rem;
  color: #f8fafc;
}

.membership-card .price {
  font-size: 2rem;
  font-weight: bold;
  color: #06b6d4;
  margin-bottom: 1.5rem;
}

.membership-card ul {
  list-style: none;
  margin-bottom: 2rem;
  text-align: left;
}

.membership-card li {
  margin-bottom: 0.75rem;
  color: #94a3b8;
  display: flex;
  align-items: center;
}

.membership-card li::before {
  content: '✓';
  color: #06b6d4;
  margin-right: 0.5rem;
  font-weight: bold;
}

/* 新闻区域 */
.news {
  padding: 6rem 0;
  background: #1e293b;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.news-card {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid rgba(6, 182, 212, 0.1);
}

.news-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(6, 182, 212, 0.2);
  border-color: #06b6d4;
}

.news-image {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, #06b6d4 0%, #0e7490 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: white;
}

.news-content {
  padding: 1.5rem;
}

.news-date {
  color: #06b6d4;
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}

.news-card h3 {
  font-size: 1.3rem;
  font-weight: bold;
  margin-bottom: 1rem;
  color: #f8fafc;
}

.news-card p {
  color: #94a3b8;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.news-card a {
  color: #06b6d4;
  text-decoration: none;
  font-weight: bold;
  transition: color 0.3s ease;
}

.news-card a:hover {
  color: #38bdf8;
}

/* 面包屑导航 */
.breadcrumb {
  padding: 1rem 0;
  background: #0f172a;
  border-bottom: 1px solid rgba(6, 182, 212, 0.1);
}

.breadcrumb ul {
  display: flex;
  list-style: none;
}

.breadcrumb li {
  margin-right: 0.5rem;
  color: #94a3b8;
}

.breadcrumb li a {
  color: #06b6d4;
  text-decoration: none;
  transition: color 0.3s ease;
}

.breadcrumb li a:hover {
  color: #38bdf8;
}

.breadcrumb li::after {
  content: '>';
  margin-left: 0.5rem;
  color: #94a3b8;
}

.breadcrumb li:last-child::after {
  display: none;
}

.breadcrumb li:last-child {
  color: #f8fafc;
}

/* 页脚 */
footer {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  padding: 4rem 0 2rem;
  border-top: 1px solid rgba(6, 182, 212, 0.1);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-logo {
  font-size: 1.8rem;
  font-weight: bold;
  color: #06b6d4;
  margin-bottom: 1rem;
}

.footer-logo p {
  color: #94a3b8;
  margin-top: 1rem;
  line-height: 1.6;
}

.footer-links h4 {
  font-size: 1.1rem;
  font-weight: bold;
  margin-bottom: 1.5rem;
  color: #f8fafc;
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: #94a3b8;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: #06b6d4;
}

.footer-bottom {
  border-top: 1px solid rgba(6, 182, 212, 0.1);
  padding-top: 2rem;
  text-align: center;
  color: #94a3b8;
}

.footer-bottom a {
  color: #06b6d4;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-bottom a:hover {
  color: #38bdf8;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .hero-content {
    flex-direction: column;
    text-align: center;
  }
  
  .hero-text {
    padding-right: 0;
    margin-bottom: 2rem;
  }
  
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .section-title h2 {
    font-size: 2rem;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2rem;
  }
  
  .hero p {
    font-size: 1rem;
  }
  
  .btn {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
  }
  
  .section-title h2 {
    font-size: 1.8rem;
  }
  
  .feature-card,
  .membership-card,
  .news-card {
    padding: 1.5rem;
  }
}