/* 友情链接页面现代化主题样式 */
:root {
  /* 主要颜色变量 */
  --primary-bg: rgba(255, 255, 255, 0.9);
  --secondary-bg: rgba(255, 255, 255, 0.7);
  --accent-blue: #2563eb;
  --accent-blue-light: #3b82f6;
  --accent-blue-dark: #1d4ed8;
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --text-tertiary: #9ca3af;
  --border-color: rgba(229, 231, 235, 0.5);
  --shadow-light: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-medium: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-heavy: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --backdrop-blur: blur(12px);
  --border-radius-sm: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 16px;
  --transition-default: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* 基础重置和全局样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 50%, #cffafe 100%);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  padding: 20px;
  overflow-x: hidden;
}

/* 毛玻璃容器基础类 */
.glass-container {
  background: var(--primary-bg);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-medium);
}

.glass-container-light {
  background: var(--secondary-bg);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--border-radius-md);
}

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

/* 头部样式 */
.header {
  text-align: center;
  margin-bottom: 40px;
  padding: 40px 30px;
  background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-blue-dark) 100%);
  color: white;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-heavy);
  position: relative;
  overflow: hidden;
}

.header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, rgba(255, 255, 255, 0.1), transparent);
  z-index: 1;
}

.header-content {
  position: relative;
  z-index: 2;
}

.header h1 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  margin-bottom: 15px;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 15px;
}

.header h1 i {
  font-size: 1.2em;
}

.subtitle {
  font-size: 1.2rem;
  opacity: 0.9;
  max-width: 800px;
  margin: 0 auto 25px;
  line-height: 1.7;
}

.admin-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 20px;
  padding: 12px 25px;
  background: rgba(255, 255, 255, 0.2);
  color: white;
  text-decoration: none;
  border-radius: 50px;
  font-weight: 600;
  transition: var(--transition-bounce);
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.admin-link:hover {
  background: white;
  color: var(--accent-blue);
  transform: translateY(-3px);
  box-shadow: var(--shadow-medium);
}

.counter {
  background: rgba(255, 255, 255, 0.2);
  color: white;
  padding: 8px 20px;
  border-radius: 50px;
  font-weight: bold;
  margin-left: 15px;
  font-size: 1rem;
  backdrop-filter: var(--backdrop-blur);
}

/* 链接容器 */
.links-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 25px;
  margin-bottom: 40px;
}

.link-card {
  background: var(--primary-bg);
  backdrop-filter: var(--backdrop-blur);
  border-radius: var(--border-radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-medium);
  transition: var(--transition-bounce);
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.link-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(to bottom, var(--accent-blue), var(--accent-blue-light));
  transform: scaleY(0);
  transition: var(--transition-default);
  transform-origin: top;
}

.link-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-heavy);
  border-color: rgba(37, 99, 235, 0.3);
}

.link-card:hover::before {
  transform: scaleY(1);
}

.link-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent-blue);
  margin-bottom: 15px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.link-title i {
  font-size: 1.3rem;
}

.link-url {
  color: var(--text-secondary);
  margin-bottom: 20px;
  font-size: 0.95rem;
  word-break: break-all;
  flex-grow: 1;
}

.link-url a {
  color: var(--accent-blue);
  text-decoration: none;
  transition: var(--transition-default);
  position: relative;
}

.link-url a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-blue);
  transition: var(--transition-default);
}

.link-url a:hover {
  color: var(--accent-blue-dark);
}

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

.link-desc {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.6;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
  margin-top: auto;
}

/* 空状态 */
.empty-message {
  text-align: center;
  padding: 80px 30px;
  grid-column: 1 / -1;
  color: var(--text-secondary);
  font-size: 1.2rem;
}

.empty-message i {
  font-size: 4rem;
  margin-bottom: 25px;
  color: rgba(37, 99, 235, 0.2);
}

/* 页脚 */
footer {
  text-align: center;
  padding: 30px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  border-top: 1px solid var(--border-color);
  margin-top: 40px;
  background: var(--secondary-bg);
  backdrop-filter: var(--backdrop-blur);
  border-radius: var(--border-radius-md);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .links-container {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .header {
    padding: 30px 20px;
  }
  
  .header h1 {
    font-size: 2.2rem;
  }
  
  .link-card {
    padding: 25px;
  }
  
  body {
    padding: 15px;
  }
}

@media (max-width: 480px) {
  .header {
    padding: 25px 15px;
  }
  
  .header h1 {
    font-size: 1.8rem;
    gap: 10px;
  }
  
  .header h1 i {
    font-size: 1em;
  }
  
  .link-card {
    padding: 20px;
  }
  
  .admin-link {
    padding: 10px 20px;
    font-size: 0.9rem;
  }
}

/* 加载动画 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.loading {
  opacity: 0;
  transform: translateY(20px);
  transition: var(--transition-default);
}

.loading.loaded {
  opacity: 1;
  transform: translateY(0);
}

/* 滚动条美化 */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.05);
}

::-webkit-scrollbar-thumb {
  background: var(--accent-blue);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-blue-dark);
}