/* 玻璃拟态主题CSS文件 - Glassmorphism Design */
:root {
  /* 现代玻璃拟态主题色彩 */
  --primary-color: #6c63ff; /* 主色调 - 紫蓝色 */
  --secondary-color: #4a9eff; /* 辅助色调 - 天蓝色 */
  --accent-color: #ff6584; /* 强调色 - 粉红色 */
  --success-color: #00cc99; /* 成功色 - 青绿色 */
  --warning-color: #ffb23e; /* 警告色 - 橙色 */
  --danger-color: #ff4d6d; /* 危险色 - 红色 */
  
  /* 背景色系 */
  --bg-primary: #f0f4f8; /* 主背景色 */
  --bg-secondary: #e2e8f0; /* 次级背景色 */
  --bg-tertiary: #cbd5e1; /* 第三级背景色 */
  
  /* 文字颜色 */
  --text-primary: #1e293b; /* 主文字色 */
  --text-secondary: #475569; /* 次级文字色 */
  --text-tertiary: #94a3b8; /* 第三级文字色 */
  
  /* 玻璃效果 */
  --glass-bg: rgba(255, 255, 255, 0.75); /* 玻璃背景 */
  --glass-border: rgba(255, 255, 255, 0.18); /* 玻璃边框 */
  --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15); /* 玻璃阴影 */
  
  /* 渐变色 */
  --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  --gradient-secondary: linear-gradient(135deg, var(--accent-color), var(--warning-color));
  --gradient-accent: linear-gradient(135deg, var(--success-color), var(--secondary-color));
  
  /* 圆角 */
  --border-radius-sm: 8px;
  --border-radius-md: 16px;
  --border-radius-lg: 24px;
  
  /* 过渡动画 */
  --transition: all 0.3s ease;
  --transition-bounce: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* 阴影 */
  --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 20px 25px rgba(0, 0, 0, 0.15);
  
  /* 断点 */
  --breakpoint-sm: 576px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 992px;
  --breakpoint-xl: 1200px;
}

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

body {
  font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(108, 99, 255, 0.1) 0%, transparent 15%),
    radial-gradient(circle at 80% 10%, rgba(74, 158, 255, 0.1) 0%, transparent 15%),
    radial-gradient(circle at 30% 80%, rgba(255, 101, 132, 0.1) 0%, transparent 15%);
  background-attachment: fixed;
}

/* 粒子背景效果 */
.particles {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
}

.particle {
  position: absolute;
  border-radius: 50%;
  background: var(--gradient-primary);
  opacity: 0.6;
  animation: float 12s infinite ease-in-out;
  box-shadow: 0 0 20px rgba(108, 99, 255, 0.7);
}

@keyframes float {
  0%, 100% {
    transform: translate(0, 0) rotate(0deg) scale(1);
    opacity: 0.6;
  }
  25% {
    transform: translate(30px, -30px) rotate(90deg) scale(1.2);
  }
  50% {
    transform: translate(-30px, 30px) rotate(180deg) scale(0.8);
    opacity: 0.8;
  }
  75% {
    transform: translate(30px, 30px) rotate(270deg) scale(1.1);
  }
}

/* 容器 */
.container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 玻璃卡片 */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--border-radius-md);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  transition: var(--transition);
  overflow: hidden;
}

.glass-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

/* 按钮样式 */
.glass-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  background: var(--gradient-primary);
  color: white;
  border: none;
  border-radius: var(--border-radius-sm);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-bounce);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  font-size: 1rem;
}

.glass-button:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  color: white;
}

.glass-button.secondary {
  background: var(--gradient-secondary);
}

.glass-button.accent {
  background: var(--gradient-accent);
}

.glass-button.small {
  padding: 8px 16px;
  font-size: 0.875rem;
}

.glass-button.large {
  padding: 16px 32px;
  font-size: 1.125rem;
}

/* 标题样式 */
.glass-title {
  font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.glass-title.h1 {
  font-size: 2.5rem;
  line-height: 1.2;
}

.glass-title.h2 {
  font-size: 2rem;
  line-height: 1.3;
  margin-top: 20px;
}

.glass-title.h3 {
  font-size: 1.5rem;
  line-height: 1.4;
}

.glass-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
}
.glass-card-title {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 1;
  overflow: hidden;
}
.glass-card-category {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 1;
  max-width: 106px;
  overflow: hidden;
}

/* 网格布局 */
.glass-grid {
  display: grid;
  gap: 25px;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.glass-grid.two-columns {
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

/* 导航栏 */
.glass-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--glass-border);
  padding: 15px 0;
  box-shadow: var(--glass-shadow);
}

.glass-nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
}

.glass-logo {
  font-size: 1.75rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
}

.glass-nav-menu {
  display: flex;
  list-style: none;
  gap: 30px;
}

.glass-nav-link {
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 600;
  padding: 8px 12px;
  border-radius: var(--border-radius-sm);
  transition: var(--transition);
}

.glass-nav-link:hover,
.glass-nav-link.active {
  background: var(--gradient-primary);
  color: white;
}

.glass-search-box {
  display: flex;
  align-items: center;
}

.glass-search-input {
  padding: 10px 15px;
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-sm) 0 0 var(--border-radius-sm);
  background: rgba(255, 255, 255, 0.7);
  outline: none;
  width: 250px;
  font-size: 0.9rem;
}

.glass-search-btn {
  background: var(--gradient-primary);
  color: white;
  border: none;
  padding: 10px 15px;
  border-radius: 0 var(--border-radius-sm) var(--border-radius-sm) 0;
  cursor: pointer;
  transition: var(--transition);
}

.glass-search-btn:hover {
  opacity: 0.9;
}

/* 移动端汉堡菜单 */
.hamburger {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-primary);
}

/* 移动端面板 */
.mobile-panel {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 1001;
  transform: translateX(-100%);
  transition: transform 0.3s ease;
  overflow-y: auto;
  box-shadow: var(--glass-shadow);
}

.mobile-panel.active {
  transform: translateX(0);
}

.panel-content-wrapper {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  border-bottom: 1px solid var(--glass-border);
}

.panel-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: var(--transition);
}

.panel-close:hover {
  background: var(--glass-bg);
}

.mobile-menu {
  list-style: none;
  padding: 30px 0;
  flex: 1;
}

.mobile-item {
  margin-bottom: 15px;
}

.mobile-link {
  display: block;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 600;
  padding: 15px;
  border-radius: var(--border-radius-sm);
  transition: var(--transition);
  font-size: 1.1rem;
}

.mobile-link:hover,
.mobile-link.active {
  background: var(--gradient-primary);
  color: white;
}

.mobile-search {
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid var(--glass-border);
}

.mobile-search-form {
  display: flex;
}

/* 页脚 */
.glass-footer {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--glass-border);
  padding: 50px 0 20px;
  margin-top: 50px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  max-width: 100%;
  margin: 20px auto 0 auto;
  padding: 20px 80px 0 80px;
  background-color: rgba(255, 255, 255, 0.75)
}

.footer-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text-primary);
}

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

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  text-decoration: none;
  color: var(--text-secondary);
  transition: var(--transition);
}

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

.newsletter-description {
  color: var(--text-secondary);
  margin-bottom: 15px;
  line-height: 1.6;
}

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  margin-top: 30px;
  border-top: 1px solid var(--glass-border);
  color: var(--text-secondary);
  font-size: 0.9rem;
}



/* 响应式设计 */
@media (max-width: 992px) {
  .glass-nav-menu {
    display: none;
  }
  
  .hamburger {
    display: block;
  }
  
  .glass-search-input {
    width: 100%;
  }
  
  .glass-title.h1 {
    font-size: 2rem;
  }
  
  .glass-title.h2 {
    font-size: 1.75rem;
  }
}

@media (max-width: 768px) {
  .glass-search-box {
    display: none;
  }
  
  .glass-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  }
  
  .glass-grid.two-columns {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  }
  
  .container {
    padding: 0 15px;
  }
  
  .glass-nav-container {
    padding: 0 15px;
  }
  
  .panel-content-wrapper {
    padding: 15px;
  }
}

@media (max-width: 576px) {
  .glass-grid {
    grid-template-columns: 1fr;
  }
  
  .glass-grid.two-columns {
    grid-template-columns: 1fr;
  }
  
  .glass-title.h1 {
    font-size: 1.75rem;
  }
  
  .glass-title.h2 {
    font-size: 1.5rem;
  }
  
  .glass-title.h3 {
    font-size: 1.25rem;
  }
  
  .glass-subtitle {
    font-size: 1rem;
  }
  
  .mobile-search-form {
    flex-direction: column;
  }
  
  .mobile-search-form .glass-search-input {
    border-radius: var(--border-radius-sm);
    margin-bottom: 10px;
  }
  
  .mobile-search-form .glass-search-btn {
    border-radius: var(--border-radius-sm);
  }
}