/* 快连官网通用样式 - 现代科技感设计 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

:root {
  --primary-color: #0070f3;
  --secondary-color: #7928ca;
  --accent-color: #ff0080;
  --dark-bg: #121212;
  --light-bg: #f7f9fc;
  --text-primary: #333;
  --text-secondary: #666;
  --text-light: #fff;
  --border-radius: 12px;
  --transition: all 0.3s ease;
}

body {
  background-color: var(--light-bg);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* 粒子背景效果 */
.particle-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  opacity: 0.6;
}

.particle {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,112,243,0.8) 0%, rgba(121,40,202,0.3) 100%);
  animation: float 8s infinite ease-in-out;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(10px, 10px) scale(1.05); }
  50% { transform: translate(0, 20px) scale(0.95); }
  75% { transform: translate(-10px, 10px) scale(1); }
}

/* 导航栏样式 */
header {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--primary-color);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: bold;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-link {
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 500;
  position: relative;
  transition: var(--transition);
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: var(--transition);
}

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

.cta-btn {
  background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
  color: white;
  border: none;
  padding: 0.8rem 1.5rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.cta-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.2);
  transition: var(--transition);
  border-radius: var(--border-radius);
}

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

.cta-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* 主要内容区域 */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.hero-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4rem;
}

.hero-text {
  flex: 1;
  min-width: 300px;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color), var(--accent-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  max-width: 500px;
}

.hero-cta {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.download-btn {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1rem 1.8rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  background: white;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  min-width: 160px;
}

.download-btn.primary {
  background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
  color: white;
}

.download-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.download-icon {
  font-size: 1.5rem;
}

.hero-image {
  flex: 1;
  min-width: 300px;
  position: relative;
}

.hero-image img {
  width: 100%;
  border-radius: var(--border-radius);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
}

.hero-image:hover img {
  transform: scale(1.02);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

/* 特性区域 */
.features {
  padding: 6rem 2rem;
  background: var(--dark-bg);
  color: var(--text-light);
}

.features-container {
  max-width: 1400px;
  margin: 0 auto;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 4rem;
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  border-radius: 2px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2.5rem;
}

.feature-card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  padding: 2rem;
  border-radius: var(--border-radius);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(to bottom, var(--primary-color), var(--secondary-color));
}

.feature-card:hover {
  transform: translateY(-10px);
  background: rgba(255, 255, 255, 0.08);
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.feature-title {
  font-size: 1.3rem;
  margin-bottom: 1rem;
  font-weight: 600;
}

.feature-desc {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.95rem;
}

/* 下载区域 */
.download-section {
  padding: 6rem 2rem;
  background: var(--light-bg);
}

.download-container {
  max-width: 1400px;
  margin: 0 auto;
}

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

.download-card {
  background: white;
  border-radius: var(--border-radius);
  padding: 2rem;
  text-align: center;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.download-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.system-icon {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
  color: var(--primary-color);
}

.system-title {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.system-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

/* 游戏加速展示区 */
.game-acceleration {
  padding: 6rem 2rem;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.game-container {
  max-width: 1400px;
  margin: 0 auto;
}

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

.stat-card {
  background: white;
  border-radius: var(--border-radius);
  padding: 2rem;
  text-align: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
}

.stat-label {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* 底部 */
footer {
  background: var(--dark-bg);
  color: var(--text-light);
  padding: 3rem 2rem;
}

.footer-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 3rem;
}

.footer-column {
  flex: 1;
  min-width: 200px;
}

.footer-logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: white;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-desc {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-link {
  color: rgba(255, 255, 255, 0.7);
  font-size: 1.2rem;
  transition: var(--transition);
}

.social-link:hover {
  color: white;
  transform: translateY(-3px);
}

.footer-title {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

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

.footer-links li {
  margin-bottom: 0.8rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: var(--transition);
}

.footer-links a:hover {
  color: white;
  margin-left: 5px;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  margin-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-container {
    flex-direction: column;
    text-align: center;
    gap: 2rem;
  }
  
  .hero-cta {
    justify-content: center;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .features-grid,
  .download-cards,
  .game-stats {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .download-btn {
    width: 100%;
    justify-content: center;
  }
  
  .nav-container {
    padding: 1rem;
  }
  
  .footer-container {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}