/* CSS自定义属性 - 2025年现代设计 */
:root {
  /* 颜色系统 */
  --primary-50: #f0f9ff;
  --primary-100: #e0f2fe;
  --primary-200: #bae6fd;
  --primary-300: #7dd3fc;
  --primary-400: #38bdf8;
  --primary-500: #0ea5e9;
  --primary-600: #0284c7;
  --primary-700: #0369a1;
  --primary-800: #075985;
  --primary-900: #0c4a6e;
  
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  
  --success-500: #22c55e;
  --warning-500: #f59e0b;
  --error-500: #ef4444;
  
  /* 渐变 */
  --gradient-primary: linear-gradient(135deg, var(--primary-500), var(--primary-700));
  --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-card: linear-gradient(145deg, rgba(255,255,255,0.1), rgba(255,255,255,0.05));
  
  /* 阴影系统 */
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  
  /* 字体系统 */
  --font-sans: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
  
  /* 间距系统 */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  
  /* 圆角 */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  
  /* 动画 */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Z-index 层级 */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal: 1040;
  --z-popover: 1050;
  --z-tooltip: 1060;
}

/* 暗色主题 */
[data-theme="dark"] {
  --bg-primary: var(--gray-900);
  --bg-secondary: var(--gray-800);
  --bg-tertiary: var(--gray-700);
  --text-primary: #ffffff;
  --text-secondary: var(--gray-300);
  --text-tertiary: var(--gray-400);
  --border-color: var(--gray-600);
  --card-bg: rgba(30, 41, 59, 0.8);
  --card-border: rgba(71, 85, 105, 0.3);
  --hover-bg: rgba(71, 85, 105, 0.2);
}

/* 明亮主题 */
[data-theme="light"] {
  --bg-primary: #ffffff;
  --bg-secondary: var(--gray-50);
  --bg-tertiary: var(--gray-100);
  --text-primary: var(--gray-900);
  --text-secondary: var(--gray-700);
  --text-tertiary: var(--gray-500);
  --border-color: var(--gray-200);
  --card-bg: rgba(255, 255, 255, 0.8);
  --card-border: rgba(0, 0, 0, 0.1);
  --hover-bg: rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .hero-section {
    background: var(--bg-primary);
}

[data-theme="light"] .hero-title {
    color: var(--text-primary);
}

[data-theme="light"] .hero-description {
    color: var(--text-secondary);
}

[data-theme="light"] .stat-number {
    color: var(--text-primary);
}

[data-theme="light"] .stat-label {
    color: var(--text-secondary);
}

/* 重置和基础样式 */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  line-height: 1.5;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  transition: background-color var(--transition-normal), color var(--transition-normal);
  min-height: 100vh;
  overflow-x: hidden;
}

/* 容器 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--space-6);
  }
}

/* 滚动按钮 */
.scroll-buttons {
  position: fixed;
  right: var(--space-6);
  bottom: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  z-index: var(--z-fixed);
}

.scroll-btn {
  width: 48px;
  height: 48px;
  background: var(--card-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--card-border);
  border-radius: var(--rounded-full);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-lg);
}

/* 滚动条样式 */
::-webkit-scrollbar {
  width: 100%;
  height: 100%;
  background: var(--bg-secondary);
  backdrop-filter: blur(12px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-xl);
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-lg);
}

.scroll-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
  background: var(--primary-500);
  color: white;
}

@media (max-width: 768px) {
  .scroll-buttons {
    right: var(--space-4);
    bottom: var(--space-4);
  }
  
  .scroll-btn {
    width: 44px;
    height: 44px;
  }
}

/* 头部导航 */
.header {
  position: sticky;
  top: 0;
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--card-border);
  z-index: var(--z-sticky);
  transition: all var(--transition-normal);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 80px;
  padding: 0 var(--space-2);
  position: relative;
}

/* 中心内容区域 */
.nav-center-content {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

/* 导航操作区域 */
.nav-actions {
  position: absolute;
  right: var(--space-2);
}

/* 品牌区域样式 */
.brand-section {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-shrink: 0;
}

.brand-logo {
  position: relative;
  filter: drop-shadow(0 4px 12px rgba(14, 165, 233, 0.15));
  transition: all var(--transition-normal);
}

.brand-logo:hover {
  transform: translateY(-2px) scale(1.05);
  filter: drop-shadow(0 8px 20px rgba(14, 165, 233, 0.25));
}

.brand-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.brand-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.2;
  letter-spacing: -0.025em;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.brand-subtitle {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  opacity: 0.8;
}

/* 主导航样式 */
.main-navigation {
  display: flex;
  justify-content: center;
  max-width: 600px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--space-1);
  backdrop-filter: blur(12px);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.875rem;
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.nav-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-fast);
  border-radius: var(--radius-lg);
}

.nav-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
  transition: all var(--transition-fast);
}

.nav-text {
  position: relative;
  z-index: 1;
  transition: all var(--transition-fast);
}

.nav-item:hover {
  color: var(--primary-600);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.nav-item:hover::before {
  opacity: 0.1;
}

.nav-item:hover .nav-icon {
  transform: scale(1.1);
}

.nav-item.active {
  background: var(--primary-500);
  color: white;
  box-shadow: var(--shadow-lg);
}

.nav-item.active::before {
  opacity: 0;
}

.nav-item.active:hover {
  background: var(--primary-600);
  color: white;
  transform: translateY(-2px);
}



/* 移动端导航菜单 */
.mobile-navigation {
  display: none;
  position: absolute;
  top: 100%;
  left: var(--space-4);
  width: auto;
  min-width: 200px;
  max-width: calc(100vw - var(--space-8));
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-xl);
  padding: var(--space-4);
  z-index: 1000;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.mobile-nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 600;
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.mobile-nav-item:hover {
  background: var(--hover-bg);
  color: var(--primary-600);
  transform: translateX(4px);
}

.mobile-nav-item.active {
  background: var(--primary-500);
  color: white;
}

@media (max-width: 768px) {
  .nav-container {
    height: 70px;
    gap: var(--space-4);
    padding: 0 var(--space-2);
  }
  
  .nav-center-content {
    justify-content: space-between;
    width: 100%;
  }
  
  .brand-section {
    gap: var(--space-3);
  }
  
  .brand-title {
    font-size: 1.25rem;
  }
  
  .brand-subtitle {
    font-size: 0.625rem;
  }
  
  .main-navigation {
    display: none;
  }
  

  
  .nav-actions {
    position: static;
  }
  
  .header.mobile-menu-open .mobile-navigation {
    display: block;
    animation: slideDown 0.3s ease-out;
  }
}

@media (max-width: 480px) {
  .brand-logo {
    display: block;
  }
  
  .brand-logo svg {
    width: 32px;
    height: 32px;
  }
  
  .nav-container {
    padding: 0 var(--space-1);
  }
  
  .brand-section {
    flex: 1;
    justify-content: center;
    gap: var(--space-2);
  }
  
  .brand-info {
    text-align: center;
  }
  
  .brand-title {
    font-size: 1.1rem;
  }
  
  .nav-actions {
    gap: var(--space-2);
  }
  
  /* 在小屏幕上隐藏收藏按钮，避免重叠 */
  .bookmark-btn {
    display: none;
  }
  
  .theme-toggle,
  .share-btn {
    width: 40px;
    height: 40px;
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.theme-toggle,
.bookmark-btn,
.share-btn {
  width: 44px;
  height: 44px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
}

.theme-toggle::before,
.bookmark-btn::before,
.share-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-fast);
  border-radius: var(--radius-xl);
}

.theme-toggle:hover,
.bookmark-btn:hover,
.share-btn:hover {
  color: white;
  border-color: var(--primary-500);
  transform: translateY(-2px) scale(1.05);
  box-shadow: var(--shadow-lg);
}

.theme-toggle:hover::before,
.bookmark-btn:hover::before,
.share-btn:hover::before {
  opacity: 1;
}

.theme-toggle svg,
.bookmark-btn svg,
.share-btn svg {
  position: relative;
  z-index: 1;
  transition: all var(--transition-fast);
}

.theme-toggle:hover svg,
.bookmark-btn:hover svg,
.share-btn:hover svg {
  transform: scale(1.1);
}

.theme-toggle .moon-icon {
  display: none;
}

[data-theme="dark"] .theme-toggle .sun-icon {
  display: none;
}

[data-theme="dark"] .theme-toggle .moon-icon {
  display: block;
}

@media (max-width: 768px) {
  .desktop-only {
    display: none;
  }
}

/* 主要内容 */
.main-content {
  min-height: calc(100vh - 72px);
}

/* 英雄区域 */
.hero-section {
  padding: var(--space-8) 0 var(--space-2);
  background: var(--gradient-hero);
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 50%, rgba(255,255,255,0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255,255,255,0.1) 0%, transparent 50%),
    radial-gradient(circle at 40% 80%, rgba(255,255,255,0.05) 0%, transparent 50%);
}

.hero-card {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  color: white;
  margin-bottom: var(--space-6);
  line-height: 1.1;
  text-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.hero-description {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-10);
  line-height: 1.6;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: var(--space-8);
  max-width: 500px;
  margin: 0 auto;
}

.stat-item {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: white;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.stat-label {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.8);
  font-weight: 500;
  margin-top: var(--space-1);
}

@media (max-width: 768px) {
  .hero-section {
    padding: var(--space-12) 0 var(--space-8);
  }
  
  .hero-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
  }
  
  .stat-number {
    font-size: 1.5rem;
  }
}

/* 卡片样式 */
.search-card,
.guide-card,
.about-card {
  background: var(--card-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  margin: var(--space-8) 0;
  box-shadow: var(--shadow-xl);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.search-card::before,
.guide-card::before,
.about-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-primary);
}

.search-card:hover,
.guide-card:hover,
.about-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-2xl);
}

@media (max-width: 768px) {
  .search-card,
  .guide-card,
  .about-card {
    padding: var(--space-6);
    margin: var(--space-6) 0;
  }
}

/* 区域样式 */
.search-section {
  padding: var(--space-2) 0 var(--space-1);
  position: relative;
}

.guide-section {
  padding: var(--space-1) 0;
  position: relative;
}

.about-section {
  padding: var(--space-1) 0;
  position: relative;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-8);
  text-align: center;
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

/* 搜索区域 */
.search-container {
  margin-bottom: var(--space-8);
}

.search-box {
  position: relative;
  max-width: 600px;
  margin: 0 auto var(--space-6);
}

.search-box input {
  width: 100%;
  height: 56px;
  padding: 0 var(--space-6) 0 var(--space-12);
  font-size: 1rem;
  background: var(--bg-secondary);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-xl);
  color: var(--text-primary);
  transition: all var(--transition-normal);
  font-family: var(--font-sans);
}

.search-box input:focus {
  outline: none;
  border-color: var(--primary-500);
  background: var(--bg-primary);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

.search-box input::placeholder {
  color: var(--text-tertiary);
}

.search-icon {
  position: absolute;
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-tertiary);
  pointer-events: none;
}

.clear-btn {
  position: absolute;
  right: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  background: transparent;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.clear-btn:hover {
  background: var(--error-500);
  color: white;
}

.clear-btn.show {
  display: flex;
}

/* 搜索筛选 */
.search-filters {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.filter-btn {
  padding: var(--space-2) var(--space-4);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.filter-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  opacity: 0.1;
  transition: left var(--transition-normal);
}

.filter-btn:hover {
  border-color: var(--primary-300);
  color: var(--primary-600);
  transform: translateY(-1px);
}

.filter-btn:hover::before {
  left: 0;
}

.filter-btn.active {
  background: var(--primary-500);
  border-color: var(--primary-500);
  color: white;
  box-shadow: var(--shadow-md);
}

/* 搜索结果 */
.search-results {
  margin-top: var(--space-8);
}

.results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
  gap: var(--space-4);
}

.results-count {
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
}

.view-toggle {
  display: flex;
  gap: var(--space-1);
  background: var(--bg-secondary);
  padding: var(--space-1);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
}

.view-btn {
  width: 36px;
  height: 36px;
  background: transparent;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.view-btn:hover {
  color: var(--primary-600);
  background: var(--hover-bg);
}

.view-btn.active {
  background: var(--primary-500);
  color: white;
  box-shadow: var(--shadow-sm);
}

.results-container {
  min-height: 200px;
}

/* 空状态 */
.empty-state {
  text-align: center;
  padding: var(--space-16) var(--space-4);
  color: var(--text-tertiary);
}

.empty-state svg {
  margin-bottom: var(--space-6);
  opacity: 0.5;
}

.empty-state h4 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-2);
  color: var(--text-secondary);
}

.empty-state p {
  font-size: 0.875rem;
  line-height: 1.5;
}

/* 结果项 */
.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--space-6);
}

.results-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.result-item {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.result-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: transform var(--transition-normal);
  transform-origin: left;
}

.result-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-300);
}

.result-item:hover::before {
  transform: scaleX(1);
}

.result-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
  line-height: 1.4;
}

.result-meta {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.result-field {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.field-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  min-width: 80px;
  flex-shrink: 0;
}

.field-value {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
  word-break: break-word;
}

/* 列表视图特殊样式 */
.results-list .result-item {
  padding: var(--space-5);
}

.results-list .result-meta {
  flex-direction: row;
  flex-wrap: wrap;
  gap: var(--space-6);
}

.results-list .result-field {
  flex: 1;
  min-width: 200px;
}

/* 分页 */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-8);
  flex-wrap: wrap;
}

.page-btn {
  min-width: 40px;
  height: 40px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 500;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.page-btn:hover:not(.disabled) {
  background: var(--primary-500);
  border-color: var(--primary-500);
  color: white;
  transform: translateY(-1px);
}

.page-btn.active {
  background: var(--primary-500);
  border-color: var(--primary-500);
  color: white;
  box-shadow: var(--shadow-md);
}

.page-btn.disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* 指南区域 */
.guide-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-8);
}

.guide-item {
  text-align: center;
  padding: var(--space-6);
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.guide-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-normal);
}

.guide-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-300);
}

.guide-item:hover::before {
  width: 100%;
}

.guide-icon {
  width: 48px;
  height: 48px;
  background: var(--gradient-primary);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-4);
  color: white;
  box-shadow: var(--shadow-md);
}

.guide-item h4 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
}

.guide-item p {
  color: var(--text-secondary);
  line-height: 1.6;
  font-size: 0.875rem;
}

@media (max-width: 768px) {
  .guide-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  
  .guide-item {
    padding: var(--space-5);
  }
}

/* 关于区域 */
.about-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-10);
  align-items: start;
}

.about-text p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-6);
  font-size: 1rem;
}

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

.features-grid {
  display: grid;
  gap: var(--space-4);
}

.feature-item {
  padding: var(--space-4);
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  transition: all var(--transition-fast);
}

.feature-item:hover {
  transform: translateX(4px);
  border-color: var(--primary-300);
  background: var(--hover-bg);
}

.feature-item h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-1);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.feature-item p {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  margin: 0;
}

@media (max-width: 768px) {
  .about-content {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
}

/* 页脚 */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: var(--space-12) 0 var(--space-6);
  margin-top: var(--space-16);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

.footer-section h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-4);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.125rem;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  transition: all var(--transition-fast);
  padding: 0.125rem 0.25rem;
  border-radius: var(--radius-sm);
  position: relative;
  display: inline-block;
}

.footer-links a:hover {
  color: var(--primary-600);
  background: var(--hover-bg);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-6);
  border-top: 1px solid var(--border-color);
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-info p {
  color: var(--text-tertiary);
  font-size: 0.875rem;
  margin: 0;
}

.footer-meta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--text-tertiary);
  font-size: 0.75rem;
  font-weight: 500;
}

@media (max-width: 768px) {
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  
  .footer-links {
    gap: 0.0625rem;
  }
  
  .footer-links a {
    flex: 0 0 auto;
    font-size: 0.75rem;
    padding: 0.0625rem 0.125rem;
    text-align: center;
    min-width: fit-content;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .footer-meta {
    flex-wrap: wrap;
    justify-content: center;
  }
}

/* 响应式调整 */
@media (max-width: 1024px) {
  .results-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  }
}

@media (max-width: 768px) {
  .results-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
  
  .results-list .result-meta {
    flex-direction: column;
    gap: var(--space-3);
  }
  
  .results-list .result-field {
    min-width: auto;
  }
  
  .results-header {
    flex-direction: column;
    align-items: stretch;
  }
  
  .view-toggle {
    align-self: center;
  }
}

/* 加载动画 */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-color);
  border-radius: 50%;
  border-top-color: var(--primary-500);
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* 通知样式 */
.notification {
  position: fixed;
  top: var(--space-6);
  right: var(--space-6);
  background: var(--card-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-xl);
  padding: var(--space-4) var(--space-6);
  box-shadow: var(--shadow-xl);
  z-index: var(--z-tooltip);
  transform: translateX(100%);
  transition: transform var(--transition-normal);
  max-width: 300px;
}

.notification.show {
  transform: translateX(0);
}

.notification.success {
  border-left: 4px solid var(--success-500);
}

.notification.error {
  border-left: 4px solid var(--error-500);
}

.notification-content {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.notification-icon {
  flex-shrink: 0;
}

.notification-text {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* 高亮搜索结果 */
.highlight {
  background: rgba(14, 165, 233, 0.2);
  padding: 0.1em 0.2em;
  border-radius: 0.2em;
  font-weight: 500;
}

/* 无障碍改进 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* 打印样式 */
@media print {
  .header,
  .scroll-buttons,
  .nav-actions,
  .search-filters,
  .view-toggle,
  .pagination,
  .footer {
    display: none;
  }
  
  .main-content {
    padding: 0;
  }
  
  .hero-section {
    background: none;
    padding: var(--space-4) 0;
  }
  
  .hero-title,
  .hero-description {
    color: black;
  }
  
  .result-item {
    break-inside: avoid;
    page-break-inside: avoid;
  }
}