/* ===== 现代医疗旅游平台 - 优化配色和布局 ===== */

/* 引入现代字体 */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Noto+Sans+SC:wght@300;400;500;600;700&display=swap');

/* CSS变量 - 优化的设计令牌 (亮色模式) */
:root {
  /* 主色调 - 医疗蓝绿渐变主题 */
  --primary-color: #06b6d4;
  --primary-dark: #0891b2;
  --primary-light: #22d3ee;
  --primary-gradient: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
  --primary-glow: rgba(6, 182, 212, 0.15);
  
  /* 辅助色 - 温暖的健康色系 */
  --secondary-color: #10b981;
  --secondary-gradient: linear-gradient(135deg, #10b981 0%, #059669 100%);
  --accent-color: #8b5cf6;
  --accent-gradient: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
  --warning-color: #f59e0b;
  --danger-color: #ef4444;
  --info-color: #3b82f6;
  --success-color: #10b981;
  
  /* 中性色 - 更柔和的灰度 */
  --text-primary: #0f172a;
  --text-secondary: #64748b;
  --text-light: #94a3b8;
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --border-color: #e2e8f0;
  --border-light: #f1f5f9;
  
  /* 医疗专业渐变背景 */
  --hero-gradient: linear-gradient(135deg, 
    rgba(6, 182, 212, 0.1) 0%, 
    rgba(59, 130, 246, 0.05) 50%,
    rgba(139, 92, 246, 0.1) 100%);
  
  /* 卡片渐变 */
  --card-gradient: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
  
  /* 阴影系统 - 更柔和的阴影 */
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.03);
  --shadow-sm: 0 2px 4px 0 rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px -2px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px -4px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 16px 48px -8px rgba(0, 0, 0, 0.16);
  --shadow-glow: 0 0 24px rgba(6, 182, 212, 0.2);
  
  /* 圆角 */
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.25rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* 间距 */
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* 过渡 */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* 字体 */
  --font-sans: 'Inter', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
}

/* 暗黑模式变量 */
[data-theme="dark"] {
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-light: #94a3b8;
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --border-color: #475569;
  --border-light: #334155;
  
  --card-gradient: linear-gradient(145deg, #1e293b 0%, #0f172a 100%);
  --hero-gradient: linear-gradient(135deg, 
    rgba(6, 182, 212, 0.08) 0%, 
    rgba(59, 130, 246, 0.04) 50%,
    rgba(139, 92, 246, 0.08) 100%);
  
  --shadow-sm: 0 2px 8px 0 rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 16px -2px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 8px 32px -4px rgba(0, 0, 0, 0.6);
  --shadow-xl: 0 16px 56px -8px rgba(0, 0, 0, 0.7);
  --shadow-glow: 0 0 32px rgba(6, 182, 212, 0.3);
}

/* ===== 全局重置和基础样式 ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: var(--font-sans);
  color: var(--text-primary);
  background: var(--bg-secondary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--transition-base), color var(--transition-base);
  overflow-x: hidden;
}

/* ===== 导航栏 - 现代玻璃态设计 ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px) saturate(180%);
  -webkit-backdrop-filter: blur(12px) saturate(180%);
  border-bottom: 1px solid var(--border-light);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
}

[data-theme="dark"] .navbar {
  background: rgba(15, 23, 42, 0.85);
  border-bottom-color: var(--border-color);
}

.navbar-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: nowrap;
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-weight: 700;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  transition: transform var(--transition-base);
  flex-shrink: 0;
  white-space: nowrap;
}

.navbar-logo:hover {
  transform: scale(1.05);
}

.navbar-logo svg {
  width: 32px;
  height: 32px;
  fill: var(--primary-color);
}

.navbar-menu {
  display: flex;
  list-style: none;
  gap: 0.5rem;
  align-items: center;
  flex: 1;
  justify-content: center;
  flex-wrap: nowrap;
}

.navbar-menu li {
  flex-shrink: 0;
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.nav-link {
  padding: 0.5rem 1rem;
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  position: relative;
  white-space: nowrap;
  display: inline-block;
}

.nav-link:hover {
  color: var(--primary-color);
  background: var(--primary-glow);
}

.nav-link.active {
  color: var(--primary-color);
  background: var(--primary-glow);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 3px;
  background: var(--primary-gradient);
  border-radius: var(--radius-full);
}

/* 语言切换按钮 */
.lang-switcher {
  display: flex;
  gap: 0.25rem;
  background: var(--bg-tertiary);
  padding: 0.25rem;
  border-radius: var(--radius-lg);
}

.lang-btn {
  padding: 0.5rem 1rem;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.875rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.lang-btn.active {
  background: var(--primary-gradient);
  color: white;
  box-shadow: var(--shadow-md);
}

.lang-btn:hover:not(.active) {
  background: var(--bg-secondary);
  color: var(--primary-color);
}

/* 主题切换按钮 */
.theme-toggle {
  padding: 0.625rem;
  border: none;
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  display: flex;
  align-items: center;
  justify-content: center;
}

.theme-toggle:hover {
  background: var(--primary-glow);
  transform: rotate(15deg) scale(1.05);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
  stroke: var(--text-secondary);
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

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

/* ===== 按钮系统 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  text-decoration: none;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width var(--transition-smooth), height var(--transition-smooth);
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn-primary {
  background: var(--primary-gradient);
  color: white;
  box-shadow: var(--shadow-md), 0 0 0 0 var(--primary-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: var(--secondary-gradient);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-outline {
  background: transparent;
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
}

.btn-outline:hover {
  background: var(--primary-color);
  color: white;
  transform: translateY(-2px);
}

.btn-large {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

/* ===== Hero区域 - 现代渐变设计 ===== */
.hero {
  margin-top: 0; /* 移除margin，因为#app已经有padding-top */
  padding: 4rem 2rem;
  background: var(--hero-gradient);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 20s ease-in-out infinite;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -50%;
  left: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 25s ease-in-out infinite reverse;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  33% { transform: translate(30px, -30px) rotate(120deg); }
  66% { transform: translate(-20px, 20px) rotate(240deg); }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
}

.hero-content h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  margin-bottom: 1.5rem;
  line-height: 1.2;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-color) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: slideInDown 0.8s ease-out;
}

@keyframes slideInDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== 卡片系统 - 3D悬浮效果 ===== */
.card {
  background: var(--card-gradient);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--primary-gradient);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

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

.card:hover::before {
  transform: scaleX(1);
}

/* 特色卡片 */
.feature-card {
  text-align: center;
  padding: 2rem;
}

.feature-card:hover .feature-icon {
  transform: scale(1.1) rotate(5deg);
}

.feature-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1.5rem;
  padding: 1rem;
  background: var(--primary-glow);
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
}

.feature-icon svg {
  width: 100%;
  height: 100%;
  fill: var(--primary-color);
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* ===== 徽章 ===== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.375rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.badge-primary {
  background: var(--primary-glow);
  color: var(--primary-color);
}

.badge-success {
  background: rgba(16, 185, 129, 0.15);
  color: var(--success-color);
}

.badge-warning {
  background: rgba(245, 158, 11, 0.15);
  color: var(--warning-color);
}

/* ===== 网格系统 ===== */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

.grid {
  display: grid;
  gap: 2rem;
}

.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }

/* ===== 页面和内容区域 ===== */
#app {
  padding-top: 100px; /* 给固定导航栏留出充足空间 */
}

.page {
  display: none;
  min-height: calc(100vh - 100px);
  animation: fadeIn 0.4s ease-out;
}

.page.active {
  display: block;
}

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

/* ===== 表单元素 ===== */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.875rem 1rem;
  font-size: 1rem;
  color: var(--text-primary);
  background: var(--bg-primary);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  font-family: var(--font-sans);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

/* ===== 文件上传区域 ===== */
.upload-zone {
  border: 3px dashed var(--border-color);
  border-radius: var(--radius-xl);
  padding: 3rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-base);
  background: var(--bg-tertiary);
}

.upload-zone:hover {
  border-color: var(--primary-color);
  background: var(--primary-glow);
  transform: scale(1.02);
}

.upload-zone-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1rem;
  padding: 1rem;
  background: var(--bg-primary);
  border-radius: var(--radius-full);
}

.upload-zone-icon svg {
  width: 100%;
  height: 100%;
}

/* ===== 文件列表 ===== */
.file-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.file-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem;
  border-radius: var(--radius-lg);
  background: var(--bg-secondary);
  margin-bottom: 0.75rem;
  transition: all var(--transition-base);
}

.file-item:hover {
  background: var(--bg-tertiary);
  transform: translateX(4px);
}

.file-item:last-child {
  margin-bottom: 0;
}

.file-info {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex: 1;
  min-width: 0;
}

.file-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  background: var(--primary-gradient);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.file-icon svg {
  width: 24px;
  height: 24px;
}

/* ===== 表格 ===== */
.table-container {
  overflow-x: auto;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-light);
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-primary);
}

thead {
  background: var(--bg-tertiary);
}

th {
  padding: 1rem;
  text-align: left;
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

td {
  padding: 1rem;
  border-top: 1px solid var(--border-light);
  color: var(--text-secondary);
}

tr:hover {
  background: var(--bg-secondary);
}

/* ===== 标签页 ===== */
.tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2rem;
  background: var(--bg-tertiary);
  padding: 0.5rem;
  border-radius: var(--radius-xl);
  overflow-x: auto;
}

.tab {
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  background: transparent;
  border: none;
  border-radius: var(--radius-lg);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.tab.active {
  background: var(--primary-gradient);
  color: white;
  box-shadow: var(--shadow-md);
}

.tab:hover:not(.active) {
  background: var(--bg-secondary);
  color: var(--primary-color);
}

.tab-content {
  display: none;
  animation: fadeIn 0.4s ease-out;
}

.tab-content.active {
  display: block;
}

/* ===== 模态框 ===== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--bg-primary);
  border-radius: var(--radius-2xl);
  padding: 2rem;
  max-width: 500px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  transform: scale(0.95);
  transition: transform var(--transition-base);
}

.modal-overlay.active .modal {
  transform: scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.modal-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
}

.modal-close {
  padding: 0.5rem;
  background: var(--bg-tertiary);
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  font-size: 1.5rem;
  color: var(--text-secondary);
  transition: all var(--transition-base);
}

.modal-close:hover {
  background: var(--danger-color);
  color: white;
  transform: rotate(90deg);
}

/* ===== 通知 ===== */
.notification {
  position: fixed;
  top: 100px;
  right: 2rem;
  padding: 1rem 1.5rem;
  background: var(--bg-primary);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  display: flex;
  align-items: center;
  gap: 1rem;
  z-index: 3000;
  animation: slideInRight 0.3s ease-out;
  min-width: 300px;
  border-left: 4px solid var(--primary-color);
}

@keyframes slideInRight {
  from {
    transform: translateX(400px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* ===== 页脚 ===== */
.footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border-light);
  padding: 3rem 0 2rem;
  margin-top: 4rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer h4 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.footer ul {
  list-style: none;
}

.footer ul li {
  margin-bottom: 0.75rem;
}

.footer a {
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border-light);
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* ===== 工具类 ===== */
.text-center { text-align: center; }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.flex { display: flex; }
.flex-center { align-items: center; justify-content: center; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-2 { gap: var(--spacing-md); }

/* ===== 响应式设计 ===== */
@media (max-width: 768px) {
  .navbar-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    flex-direction: column;
    padding: 1rem;
    box-shadow: var(--shadow-lg);
    border-top: 1px solid var(--border-light);
  }
  
  .navbar-menu.active {
    display: flex;
  }
  
  .mobile-menu-toggle {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
  }
  
  .mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
  }
  
  .hero {
    padding: 3rem 1.5rem;
  }
  
  .container {
    padding: 0 1.5rem;
  }
  
  .grid {
    gap: 1.5rem;
  }
}

@media (max-width: 480px) {
  .btn {
    width: 100%;
  }
  
  .navbar-actions {
    gap: 0.5rem;
  }
  
  .lang-switcher {
    display: none;
  }
}

/* ===== 加载动画 ===== */
.spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--border-color);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ===== 平滑滚动条 ===== */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-tertiary);
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-color);
}

/* ===== 选中文本样式 ===== */
::selection {
  background: var(--primary-glow);
  color: var(--primary-color);
}