/* Reset and base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary-color: #6366f1;
  --secondary-color: #8b5cf6;
  --accent-color: #f59e0b;
  --background: #0f0f1a;
  --surface: #1a1a2e;
  --surface-light: #16213e;
  --foreground: #ffffff;
  --muted-foreground: #a1a1aa;
  --border-color: #2d2d44;
  --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  --gradient-accent: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --radius: 12px;
  --radius-lg: 20px;
}

body {
  background: var(--background);
  color: var(--foreground);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
  min-height: 100vh;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* 导航栏 */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) 0;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(15, 15, 26, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  border-bottom: 1px solid var(--border-color);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.brand-icon {
  font-size: 1.75rem;
}

.brand-text {
  font-size: 1.25rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
}

.nav-menu a {
  color: var(--muted-foreground);
  text-decoration: none;
  font-size: 0.9375rem;
  transition: color 0.3s ease;
}

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

/* Hero 区域 */
.hero {
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: 80px;
  background: 
    radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(139, 92, 246, 0.15) 0%, transparent 50%),
    var(--background);
}

.hero-content {
  max-width: 700px;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: var(--spacing-md);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--foreground);
  margin-bottom: var(--spacing-sm);
  font-weight: 500;
}

.hero-desc {
  font-size: 1rem;
  color: var(--muted-foreground);
}

/* 通用区块 */
.section {
  padding: var(--spacing-2xl) 0;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--spacing-xl);
  position: relative;
  color: var(--foreground);
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: var(--gradient-primary);
  margin: var(--spacing-sm) auto 0;
  border-radius: 2px;
}

/* 关于我们 */
.about-content {
  max-width: 800px;
  margin: 0 auto;
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  border: 1px solid var(--border-color);
}

.about-content p {
  color: var(--muted-foreground);
  margin-bottom: var(--spacing-md);
  text-align: justify;
  font-size: 1rem;
  line-height: 1.8;
}

.about-content p:last-child {
  margin-bottom: 0;
}

/* 服务内容 */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.service-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: var(--spacing-lg);
  border: 1px solid var(--border-color);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(99, 102, 241, 0.2);
  border-color: var(--primary-color);
}

.service-icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-sm);
}

.service-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
  color: var(--foreground);
}

.service-card p {
  font-size: 0.875rem;
  color: var(--muted-foreground);
  line-height: 1.7;
}

/* 联系我们 */
.contact-content {
  max-width: 600px;
  margin: 0 auto;
}

.contact-info {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  border: 1px solid var(--border-color);
}

.info-item {
  display: flex;
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--border-color);
}

.info-item:last-child {
  border-bottom: none;
}

.info-label {
  width: 120px;
  color: var(--muted-foreground);
  font-size: 0.875rem;
  flex-shrink: 0;
}

.info-value {
  color: var(--foreground);
  font-size: 0.9375rem;
  word-break: break-all;
}

/* 页脚 */
.footer {
  background: var(--surface);
  border-top: 1px solid var(--border-color);
  padding: var(--spacing-xl) 0;
  text-align: center;
}

.filing-info {
  margin-bottom: var(--spacing-md);
}

.filing-info p {
  color: var(--muted-foreground);
  font-size: 0.875rem;
  margin-bottom: var(--spacing-xs);
}

.filing-info strong {
  color: var(--foreground);
}

.filing-number p {
  color: var(--muted-foreground);
  font-size: 0.75rem;
}

/* 备案徽章区域 */
.filing-badges {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  flex-wrap: wrap;
}

.icp-badge {
  color: var(--muted-foreground);
  font-size: 0.8125rem;
  text-decoration: none;
  padding: 4px 12px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  transition: border-color 0.3s ease, color 0.3s ease;
}

.icp-badge:hover {
  color: var(--primary-color);
  border-color: var(--primary-color);
}

/* 公安备案图标占位样式（后续启用时使用） */
/*
.police-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 8px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  transition: border-color 0.3s ease;
}

.police-badge:hover {
  border-color: var(--primary-color);
}

.police-badge img {
  height: 24px;
  width: auto;
}
*/

/* 响应式设计 */
@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .info-item {
    flex-direction: column;
    gap: var(--spacing-xs);
  }

  .info-label {
    width: auto;
  }
}