/* 星空科技感主色调 - v2.0 */
/* 强制刷新版本 - 2025-07-22 */
:root {
  --primary-bg: #1B1F3B;
  --secondary-bg: #3A2C66;
  --card-bg: #23263a;
  --accent: #FF7E79;
  --teal: #73E0D9;
  --amber: #FFD6A5;
  --text-main: #F6F6F6;
  --text-secondary: #AAAAAA;
  --border: #2e3147;
}

/* 基础样式 */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background: linear-gradient(135deg, var(--primary-bg) 0%, var(--secondary-bg) 100%);
  color: var(--text-main);
  font-family: 'Inter', 'Helvetica Neue', Arial, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  margin: 0;
  min-height: 100vh;
  line-height: 1.6;
}

main {
  max-width: 900px;
  margin: 0 auto;
  padding: 32px 16px 48px 16px;
}

/* 导航栏 */
.navbar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  background: var(--card-bg);
  height: 56px;
  border-bottom: 1px solid var(--border);
  z-index: 10;
  gap: 48px;
  padding: 0 8px;
}

.navbar a {
  color: var(--text-main);
  text-decoration: none;
  font-weight: 500;
  font-size: 1.1em;
  transition: color 0.2s;
  padding: 8px 0;
  position: relative;
  z-index: 11;
  display: inline-block;
  pointer-events: auto;
}

.navbar a:hover {
  color: var(--accent);
}

.navbar .logo {
  padding-right: 24px;
}

.navbar .logo img {
  height: 40px;
  vertical-align: middle;
}

/* 卡片样式 */
.card {
  background: var(--card-bg);
  border-radius: 18px;
  box-shadow: 0 4px 24px 0 rgba(27,31,59,0.12);
  padding: 32px 24px;
  margin-bottom: 32px;
  border: 1px solid var(--border);
}

.hero {
  text-align: center;
  background: linear-gradient(120deg, var(--primary-bg) 60%, var(--secondary-bg) 100%);
  margin-top: 24px;
  margin-bottom: 32px;
  padding-top: 48px;
  padding-bottom: 48px;
}

/* 标题样式 */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-main);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 16px;
}

h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 24px;
}

h2 {
  font-size: 1.8rem;
  margin-bottom: 20px;
}

/* 段落样式 */
p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.6;
}

/* 按钮样式 */
.cta-button {
  display: inline-block;
  background: var(--accent);
  color: var(--primary-bg);
  padding: 12px 24px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}

.cta-button:hover {
  background: #ff6b6b;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(255, 126, 121, 0.3);
}

/* 图片画廊 */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin-top: 24px;
}

.gallery img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
  object-fit: cover;
  object-position: center;
  max-height: 400px;
}

/* 视频卡片 */
.video-card {
  text-align: center;
}

.video-card iframe {
  width: 100%;
  max-width: 600px;
  height: 340px;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}

/* 页脚 */
.footer {
  background: var(--card-bg);
  border-top: 1px solid var(--border);
  padding: 24px 16px;
  text-align: center;
  color: var(--text-secondary);
  margin-top: 48px;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .navbar {
    gap: 24px;
    padding: 0 4px;
  }
  
  .navbar a {
    font-size: 1em;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.5rem;
  }
  
  .card {
    padding: 24px 16px;
  }
  
  .hero {
    padding-top: 32px;
    padding-bottom: 32px;
  }
  
  .gallery {
    grid-template-columns: 1fr;
  }
  
  .gallery img {
    max-height: 300px;
  }
  
  .video-card iframe {
    height: 240px;
  }
}

@media (max-width: 480px) {
  .navbar {
    flex-direction: column;
    height: auto;
    padding: 16px 8px;
    gap: 16px;
  }
  
  .navbar .logo {
    padding-right: 0;
    margin-bottom: 8px;
  }
  
  main {
    padding: 16px 8px 32px 8px;
  }
  
  .card {
    padding: 20px 12px;
  }
}