/* ==================== 考棚在线通用样式 v2.0 ==================== */

/* CSS变量 - 设计系统 */
:root {
  /* 主色调系统 */
  --primary-color: #c20000;
  --primary-hover: #a80000;
  --primary-active: #8B0000;
  --primary-light: #ffeaea;
  --primary-lighter: #fff5f5;
  --primary-gradient: linear-gradient(135deg, #c20000 0%, #8B0000 100%);
  --primary-gradient-light: linear-gradient(135deg, #ffeaea 0%, #fff5f5 100%);
  
  /* 功能色彩 */
  --success-color: #27ae60;
  --success-light: #e8f5e8;
  --warning-color: #f39c12;
  --warning-light: #fef9e7;
  --danger-color: #e74c3c;
  --danger-light: #fdeaea;
  --info-color: #3498db;
  --info-light: #e3f2fd;
  
  /* 中性色系统 */
  --text-primary: #2c3e50;
  --text-secondary: #7f8c8d;
  --text-light: #95a5a6;
  --text-muted: #bdc3c7;
  --text-white: #ffffff;
  
  /* 背景色系统 */
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-tertiary: #ecf0f1;
  --bg-dark: #2c3e50;
  --bg-overlay: rgba(44, 62, 80, 0.8);
  
  /* 边框色系统 */
  --border-color: #e9ecef;
  --border-light: #f1f3f4;
  --border-dark: #dee2e6;
  
  /* 阴影系统 */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.16);
  --shadow-primary: 0 4px 20px rgba(194, 0, 0, 0.15);
  --shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.12);
  
  /* 圆角系统 */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 50%;
  
  /* 间距系统 */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  
  /* 字体系统 */
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Helvetica Neue", "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", sans-serif;
  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size-base: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 20px;
  --font-size-2xl: 24px;
  --font-size-3xl: 32px;
  --font-size-4xl: 40px;
  
  /* 过渡动画 */
  --transition-fast: 0.15s ease-in-out;
  --transition-base: 0.3s ease-in-out;
  --transition-slow: 0.5s ease-in-out;
  --easing-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  --easing-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* 基础重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

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

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

.container-fluid {
  width: 100%;
  padding: 0 var(--space-md);
}

/* Flexbox 工具类 */
.d-flex { display: flex; }
.d-inline-flex { display: inline-flex; }
.flex-column { flex-direction: column; }
.flex-row { flex-direction: row; }
.flex-wrap { flex-wrap: wrap; }
.flex-nowrap { flex-wrap: nowrap; }
.justify-start { justify-content: flex-start; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }
.align-start { align-items: flex-start; }
.align-center { align-items: center; }
.align-end { align-items: flex-end; }
.align-stretch { align-items: stretch; }
.flex-1 { flex: 1; }

/* Grid 工具类 */
.grid { display: grid; }
.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }

/* 文本工具类 */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-primary { color: var(--primary-color); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-white { color: var(--text-white); }
.text-success { color: var(--success-color); }
.text-warning { color: var(--warning-color); }
.text-danger { color: var(--danger-color); }
.text-info { color: var(--info-color); }

.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-medium { font-weight: 500; }
.font-normal { font-weight: 400; }

.text-xs { font-size: var(--font-size-xs); }
.text-sm { font-size: var(--font-size-sm); }
.text-base { font-size: var(--font-size-base); }
.text-lg { font-size: var(--font-size-lg); }
.text-xl { font-size: var(--font-size-xl); }
.text-2xl { font-size: var(--font-size-2xl); }
.text-3xl { font-size: var(--font-size-3xl); }
.text-4xl { font-size: var(--font-size-4xl); }

/* 间距工具类 */
.m-0 { margin: 0; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.p-sm { padding: var(--space-sm); }
.p-md { padding: var(--space-md); }
.p-lg { padding: var(--space-lg); }

/* 按钮系统 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 12px 24px;
  font-size: var(--font-size-sm);
  font-weight: 500;
  line-height: 1.4;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base) var(--easing-smooth);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
  user-select: none;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.btn:hover::before {
  left: 100%;
}

/* 主要按钮 */
.btn-primary {
  background: var(--primary-gradient);
  color: var(--text-white);
  box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
  filter: brightness(1.05);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-md);
}

/* 次要按钮 */
.btn-secondary {
  background: var(--bg-primary);
  color: var(--primary-color);
  border-color: var(--primary-color);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background: var(--primary-color);
  color: var(--text-white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* 幽灵按钮 */
.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border-color);
}

.btn-ghost:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border-color: var(--border-dark);
}

/* 按钮尺寸 */
.btn-sm {
  padding: 8px 16px;
  font-size: var(--font-size-xs);
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 16px 32px;
  font-size: var(--font-size-lg);
  border-radius: var(--radius-lg);
}

.btn-block {
  width: 100%;
  display: flex;
}

/* 禁用状态 */
.btn:disabled,
.btn.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* 卡片组件 */
.card {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: all var(--transition-base) var(--easing-smooth);
}

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

.card-header {
  padding: var(--space-lg);
  border-bottom: 1px solid var(--border-light);
  background: var(--bg-secondary);
}

.card-body {
  padding: var(--space-lg);
}

.card-footer {
  padding: var(--space-lg);
  border-top: 1px solid var(--border-light);
  background: var(--bg-secondary);
}

/* ==================== 头部导航系统 ==================== */

/* 主要 Header 容器 */
.header {
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
  transition: all var(--transition-base);
}

.header.scrolled {
  box-shadow: var(--shadow-lg);
  border-bottom-color: var(--border-color);
}

.header.hidden {
  transform: translateY(-100%);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  padding: var(--space-sm) 0;
  min-height: 64px;
  position: relative;
}

/* Logo 区域 */
.logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.logo img {
  height: 42px;
  width: auto;
  transition: transform var(--transition-base);
}

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

/* ==================== 搜索框系统 ==================== */

.search-box {
  flex: 1;
  max-width: 420px;
  min-width: 300px;
  position: relative;
  margin: 0 var(--space-lg);
}

.search-input {
  width: 100%;
  height: 44px;
  padding: 0 var(--space-md) 0 var(--space-3xl);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  background: var(--bg-secondary);
  transition: all var(--transition-base);
  outline: none;
}

.search-input:focus {
  border-color: var(--primary-color);
  background: var(--bg-primary);
  box-shadow: 0 0 0 4px var(--primary-light);
}

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

.search-btn {
  position: absolute;
  left: var(--space-md);
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: var(--space-sm);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  display: flex;
  align-items: center;
  justify-content: center;
}

.search-btn:hover {
  color: var(--primary-color);
  background: var(--primary-light);
}

/* 搜索下拉框 */
.search-dropdown {
  position: absolute;
  top: calc(100% + var(--space-sm));
  left: 0;
  right: 0;
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border-light);
  overflow: hidden;
  z-index: 1001;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-base);
  max-height: 400px;
  overflow-y: auto;
}

.search-box.focused .search-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.hot-search,
.search-history {
  padding: var(--space-md);
  border-bottom: 1px solid var(--border-light);
}

.hot-search:last-child,
.search-history:last-child {
  border-bottom: none;
}

.hot-search h4,
.search-history h4 {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
}

.hot-search ul,
.search-history ul {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  list-style: none;
}

.hot-search li,
.search-history li {
  padding: var(--space-xs) var(--space-md);
  background: var(--bg-secondary);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  border: 1px solid transparent;
}

.hot-search li:hover,
.search-history li:hover {
  background: var(--primary-light);
  color: var(--primary-color);
  border-color: var(--primary-color);
  transform: translateY(-1px);
}

.hot-search li {
  background: var(--primary-light);
  color: var(--primary-color);
  font-weight: 500;
}

.hot-search li:hover {
  background: var(--primary-color);
  color: var(--text-white);
}

.clear-history {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: var(--font-size-xs);
  cursor: pointer;
  padding: 0;
  transition: color var(--transition-base);
}

.clear-history:hover {
  color: var(--danger-color);
}

/* ==================== 导航菜单系统 ==================== */

.nav-menu {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: var(--space-xs);
  margin: 0;
  padding: 0;
  align-items: center;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: var(--font-size-sm);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  position: relative;
  white-space: nowrap;
}

.nav-icon {
  font-size: 16px;
  opacity: 0.8;
  transition: all var(--transition-base);
}

.nav-text {
  font-size: inherit;
}

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

.nav-link:hover .nav-icon,
.nav-link.active .nav-icon {
  opacity: 1;
  transform: scale(1.1);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--primary-gradient);
  border-radius: 1px;
  transform: translateX(-50%);
  transition: width var(--transition-base);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 80%;
}

/* 下拉菜单 */
.dropdown {
  position: relative;
}

.dropdown-arrow {
  transition: transform var(--transition-base);
  margin-left: var(--space-xs);
}

.dropdown.active .dropdown-arrow {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  min-width: 200px;
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-base);
  z-index: 1000;
  padding: var(--space-sm) 0;
  margin-top: var(--space-sm);
  overflow: hidden;
}

.dropdown.active .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  display: block !important;
}

/* 调试用 - 强制显示下拉菜单 */
.more-menu.active .more-dropdown {
  opacity: 1 !important;
  visibility: visible !important;
  transform: translateY(0) !important;
  display: block !important;
  z-index: 9999 !important;
}

.dropdown-link {
  display: block;
  padding: var(--space-sm) var(--space-md);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: var(--font-size-sm);
  transition: all var(--transition-base);
  border-radius: 0;
  margin: 0 var(--space-sm);
}

.dropdown-link:hover,
.dropdown-link.active {
  background: var(--primary-light);
  color: var(--primary-color);
  border-radius: var(--radius-sm);
}

/* ==================== 用户操作区 ==================== */

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

/* ==================== 移动端菜单 ==================== */

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  gap: 4px;
}

.hamburger-line {
  width: 20px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.mobile-menu-toggle:hover .hamburger-line {
  background: var(--primary-color);
}

.mobile-nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-overlay);
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

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

.mobile-nav-menu {
  position: absolute;
  top: 0;
  right: 0;
  width: 300px;
  height: 100%;
  background: var(--bg-primary);
  transform: translateX(100%);
  transition: transform var(--transition-base);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-xl);
}

.mobile-nav-overlay.active .mobile-nav-menu {
  transform: translateX(0);
}

.mobile-nav-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg);
  border-bottom: 1px solid var(--border-light);
}

.mobile-nav-close {
  background: none;
  border: none;
  font-size: 24px;
  color: var(--text-secondary);
  cursor: pointer;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.mobile-nav-close:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.mobile-nav-list {
  flex: 1;
  padding: var(--space-lg) 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  overflow-y: auto;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: 500;
  transition: all var(--transition-base);
  border-left: 3px solid transparent;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  background: var(--primary-light);
  color: var(--primary-color);
  border-left-color: var(--primary-color);
}

.mobile-nav-actions {
  padding: var(--space-lg);
  border-top: 1px solid var(--border-light);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

/* 页脚 */
.footer {
  background: var(--bg-dark);
  color: var(--text-white);
  padding: var(--space-3xl) 0 var(--space-lg);
  margin-top: var(--space-3xl);
}

.footer-top {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer-col h3 {
  color: var(--text-white);
  margin-bottom: var(--space-md);
  font-size: var(--font-size-lg);
  font-weight: 600;
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: var(--space-sm);
}

.footer-col a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition-base);
}

.footer-col a:hover {
  color: var(--text-white);
}

/* ==================== 响应式设计 ==================== */

/* 大屏幕优化 */
@media (min-width: 1400px) {
  .container {
    max-width: 1320px;
  }
  
  .search-box {
    max-width: 500px;
  }
}

/* 中等屏幕 */
@media (max-width: 1200px) {
  .nav-list {
    gap: 2px;
  }
  
  .nav-link {
    padding: var(--space-xs) var(--space-sm);
    font-size: 13px;
  }
  
  .nav-icon {
    font-size: 14px;
  }
  
  .search-box {
    max-width: 300px;
    min-width: 250px;
  }
}

/* 平板屏幕 */
@media (max-width: 1024px) {
  .header-container {
    gap: var(--space-md);
  }
  
  .nav-link .nav-text {
    display: none;
  }
  
  .nav-link {
    padding: var(--space-sm);
    min-width: 36px;
    justify-content: center;
  }
  
  .search-box {
    max-width: 250px;
    min-width: 200px;
    margin: 0 var(--space-md);
  }
}

/* 小屏幕和移动端 */
@media (max-width: 768px) {
  .header-container {
    gap: var(--space-sm);
    padding: var(--space-xs) 0;
    min-height: 56px;
  }
  
  .search-box {
    order: 3;
    flex-basis: 100%;
    max-width: none;
    min-width: auto;
    margin: var(--space-sm) 0 0 0;
  }
  
  .nav-menu {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .user-actions .btn {
    padding: 6px 12px;
    font-size: var(--font-size-xs);
  }
  
  .logo img {
    height: 36px;
  }
}

/* 超小屏幕 */
@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-sm);
  }
  
  .header-container {
    flex-wrap: wrap;
  }
  
  .user-actions {
    gap: var(--space-sm);
  }
  
  .user-actions .btn {
    padding: 4px 8px;
    font-size: 11px;
  }
  
  .mobile-nav-menu {
    width: 100%;
  }
  
  .search-input {
    height: 40px;
    font-size: 13px;
  }
}

/* 动画定义 */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

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

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

@keyframes bounce {
  0%, 20%, 53%, 80%, 100% { transform: translateY(0); }
  40%, 43% { transform: translateY(-10px); }
  70% { transform: translateY(-5px); }
  90% { transform: translateY(-2px); }
}

/* 工具动画类 */
.fade-in { animation: fadeIn 0.6s ease-out; }
.fade-in-up { animation: fadeInUp 0.6s ease-out; }
.fade-in-down { animation: fadeInDown 0.6s ease-out; }
.slide-in-right { animation: slideInRight 0.6s ease-out; }
.pulse { animation: pulse 2s infinite; }
.bounce { animation: bounce 1s; }

/* 状态类 */
.loading {
  position: relative;
  overflow: hidden;
}

.loading::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  animation: loading 1.5s infinite;
}

@keyframes loading {
  0% { left: -100%; }
  100% { left: 100%; }
}

/* 滚动条样式 */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--border-dark);
  border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* 选择文本样式 */
::selection {
  background: var(--primary-light);
  color: var(--primary-color);
}

::-moz-selection {
  background: var(--primary-light);
  color: var(--primary-color);
}

/* 焦点样式 */
*:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

button:focus,
.btn:focus {
  outline: none;
  box-shadow: 0 0 0 3px var(--primary-light);
}