/* ========================================
   视觉美化设计系统 - Design System
   版本: 1.0.0
   基于前三阶段诊断结果深度优化
   ======================================== */

/* ========================================
   1. 色彩体系重构 - Color System
   ======================================== */

:root {
  /* 主色调 - 品牌玫瑰红系 */
  --color-primary: #8c414d;
  --color-primary-light: #a65560;
  --color-primary-lighter: #c47a85;
  --color-primary-dark: #6e323c;
  --color-primary-darker: #50232b;
  
  /* 辅助色 - 橙色系（强调色） */
  --color-accent: #fd9800;
  --color-accent-light: #ffb033;
  --color-accent-dark: #d98200;
  
  /* 功能色 */
  --color-success: #00b42a;
  --color-warning: #ff7d00;
  --color-error: #f53f3f;
  --color-info: #165dff;
  
  /* 中性色 - 文字层级 */
  --color-text-primary: #1d2129;
  --color-text-secondary: #4e5969;
  --color-text-tertiary: #86909c;
  --color-text-disabled: #c9cdd4;
  --color-text-white: #ffffff;
  
  /* 背景色 */
  --color-bg-primary: #ffffff;
  --color-bg-secondary: #f7f8fa;
  --color-bg-tertiary: #f2f3f5;
  --color-bg-dark: #1d2129;
  --color-bg-darker: #0d1117;
  
  /* 边框色 */
  --color-border: #e5e6eb;
  --color-border-light: #f2f3f5;
  --color-border-dark: #c9cdd4;
  
  /* 阴影色 */
  --color-shadow: rgba(0, 0, 0, 0.08);
  --color-shadow-light: rgba(0, 0, 0, 0.04);
  --color-shadow-dark: rgba(0, 0, 0, 0.16);
  
  /* 渐变色 */
  --gradient-primary: linear-gradient(135deg, #8c414d 0%, #a65560 100%);
  --gradient-accent: linear-gradient(135deg, #fd9800 0%, #ffb033 100%);
  --gradient-dark: linear-gradient(180deg, #1d2129 0%, #0d1117 100%);
}

/* ========================================
   2. 字体层级规范 - Typography System
   ======================================== */

:root {
  /* 字体家族 */
  --font-family-primary: 'Noto Sans TC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-family-display: 'Noto Serif TC', Georgia, serif;
  --font-family-mono: 'SF Mono', Monaco, 'Cascadia Code', monospace;
  
  /* 字体大小 - 基于8px网格 */
  --font-size-xs: 12px;      /* 辅助信息 */
  --font-size-sm: 13px;      /* 次要内容 */
  --font-size-base: 14px;    /* 正文基准 */
  --font-size-md: 16px;      /* 重要正文 */
  --font-size-lg: 18px;      /* 小标题 */
  --font-size-xl: 20px;      /* 标题 */
  --font-size-2xl: 24px;     /* 大标题 */
  --font-size-3xl: 30px;     /* 特大标题 */
  --font-size-4xl: 36px;     /* 页面标题 */
  --font-size-5xl: 48px;     /* 展示标题 */
  
  /* 行高 */
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  --line-height-loose: 2;
  
  /* 字重 */
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* 字间距 */
  --letter-spacing-tight: -0.02em;
  --letter-spacing-normal: 0;
  --letter-spacing-wide: 0.02em;
}

/* 字体层级应用 */
.text-display { font-size: var(--font-size-5xl); font-weight: var(--font-weight-bold); line-height: var(--line-height-tight); }
.text-title-1 { font-size: var(--font-size-4xl); font-weight: var(--font-weight-bold); line-height: var(--line-height-tight); }
.text-title-2 { font-size: var(--font-size-3xl); font-weight: var(--font-weight-semibold); line-height: var(--line-height-tight); }
.text-title-3 { font-size: var(--font-size-2xl); font-weight: var(--font-weight-semibold); line-height: var(--line-height-normal); }
.text-title-4 { font-size: var(--font-size-xl); font-weight: var(--font-weight-medium); line-height: var(--line-height-normal); }
.text-body-1 { font-size: var(--font-size-md); font-weight: var(--font-weight-normal); line-height: var(--line-height-relaxed); }
.text-body-2 { font-size: var(--font-size-base); font-weight: var(--font-weight-normal); line-height: var(--line-height-relaxed); }
.text-caption { font-size: var(--font-size-sm); font-weight: var(--font-weight-normal); line-height: var(--line-height-normal); }
.text-overline { font-size: var(--font-size-xs); font-weight: var(--font-weight-medium); line-height: var(--line-height-normal); letter-spacing: var(--letter-spacing-wide); text-transform: uppercase; }

/* ========================================
   3. 间距系统 - Spacing System
   基于8px网格，使用0.5rem(8px)为基准单位
   ======================================== */

:root {
  --space-0: 0;
  --space-1: 4px;      /* 0.25rem */
  --space-2: 8px;      /* 0.5rem */
  --space-3: 12px;     /* 0.75rem */
  --space-4: 16px;     /* 1rem */
  --space-5: 20px;     /* 1.25rem */
  --space-6: 24px;     /* 1.5rem */
  --space-8: 32px;     /* 2rem */
  --space-10: 40px;    /* 2.5rem */
  --space-12: 48px;    /* 3rem */
  --space-16: 64px;    /* 4rem */
  --space-20: 80px;    /* 5rem */
  --space-24: 96px;    /* 6rem */
  
  /* 组件内间距 */
  --padding-xs: var(--space-2);
  --padding-sm: var(--space-3);
  --padding-md: var(--space-4);
  --padding-lg: var(--space-6);
  --padding-xl: var(--space-8);
  
  /* 组件外间距 */
  --margin-xs: var(--space-2);
  --margin-sm: var(--space-4);
  --margin-md: var(--space-6);
  --margin-lg: var(--space-8);
  --margin-xl: var(--space-12);
  
  /* 容器宽度 */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1200px;
  --container-2xl: 1400px;
}

/* ========================================
   4. 圆角系统 - Border Radius
   ======================================== */

:root {
  --radius-none: 0;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;
}

/* ========================================
   5. 阴影系统 - Shadow System
   ======================================== */

:root {
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.10);
  --shadow-xl: 0 16px 32px rgba(0, 0, 0, 0.12);
  --shadow-2xl: 0 24px 48px rgba(0, 0, 0, 0.16);
  
  /* 内阴影 */
  --shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.06);
  
  /* 品牌色阴影 */
  --shadow-primary: 0 4px 12px rgba(140, 65, 77, 0.25);
  --shadow-accent: 0 4px 12px rgba(253, 152, 0, 0.25);
}

/* ========================================
   6. 动效系统 - Motion System
   ======================================== */

:root {
  /* 持续时间 */
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 350ms;
  --duration-slower: 500ms;
  
  /* 缓动函数 */
  --ease-linear: linear;
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
  --ease-spring: cubic-bezier(0.175, 0.885, 0.32, 1.275);
  
  /* 预设动画 */
  --transition-fast: var(--duration-fast) var(--ease-out);
  --transition-normal: var(--duration-normal) var(--ease-out);
  --transition-slow: var(--duration-slow) var(--ease-out);
}

/* ========================================
   7. Z-Index层级系统
   ======================================== */

:root {
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
  --z-notification: 1080;
  --z-loading: 9999;
}

/* ========================================
   8. 组件样式重构
   ======================================== */

/* ========================================
   导航栏视觉重构 - Navigation Enhancement
   ======================================== */

/* 顶部导航栏 */
.head_top_nav {
  background: var(--color-bg-tertiary);
  border-bottom: 1px solid var(--color-border-light);
  font-size: var(--font-size-xs);
}

.head_top_nav a {
  color: var(--color-text-tertiary);
  transition: color var(--transition-fast);
}

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

/* 主导航栏容器 */
.tem_inner.tem_head {
  background: var(--color-bg-primary);
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid var(--color-border-light);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  transition: all var(--transition-normal);
}

.tem_inner.tem_head.scrolled {
  box-shadow: var(--shadow-md);
  background: rgba(255, 255, 255, 0.98);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

/* Logo区域 */
.met-logo a {
  display: flex;
  align-items: center;
  transition: opacity var(--transition-fast);
}

.met-logo a:hover {
  opacity: 0.85;
}

.met-logo img {
  height: 60px;
  width: auto;
  transition: height var(--transition-normal);
}

.tem_inner.tem_head.scrolled .met-logo img {
  height: 50px;
}

/* 导航菜单 */
#menu .navbar-nav {
  display: flex;
  gap: var(--space-1);
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
  justify-content: center;
}

/* 导航项 */
#menu .navbar-nav > li {
  position: relative;
  margin: 0;
}

/* 导航链接 - 核心样式重构 */
#menu .navbar-nav > li > a {
  display: inline-flex;
  align-items: center;
  padding: var(--space-3) var(--space-4);
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  position: relative;
  white-space: nowrap;
}

/* 导航链接hover效果 */
#menu .navbar-nav > li > a:hover {
  color: var(--color-primary);
  background: rgba(140, 65, 77, 0.06);
}

/* 导航链接active/current状态 */
#menu .navbar-nav > li.navdown > a,
#menu .navbar-nav > li > a.active {
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
}

/* 导航链接下划线动画 */
#menu .navbar-nav > li > a::after {
  content: '';
  position: absolute;
  bottom: 6px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: calc(100% - var(--space-8));
  height: 2px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  transition: transform var(--transition-fast);
}

#menu .navbar-nav > li > a:hover::after,
#menu .navbar-nav > li.navdown > a::after {
  transform: translateX(-50%) scaleX(1);
}

/* 下拉箭头图标 */
#menu .navbar-nav > li > i.bi-chevron-down {
  font-size: 10px;
  margin-left: 4px;
  transition: transform var(--transition-fast);
  color: var(--color-text-tertiary);
}

#menu .navbar-nav > li:hover > i.bi-chevron-down {
  transform: rotate(180deg);
  color: var(--color-primary);
}

/* 下拉子菜单 - 视觉重构 */
#menu .navbar-nav > li .submenu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-8px) scale(0.96);
  min-width: 280px;
  max-width: 420px;
  padding: var(--space-4);
  background: var(--color-bg-primary);
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  z-index: var(--z-dropdown);
  list-style: none;
  /* 毛玻璃效果 */
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.95);
}

#menu .navbar-nav > li:hover .submenu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0) scale(1);
}

/* 子菜单项 */
#menu .navbar-nav > li .submenu dd {
  margin: 0;
  padding: 0;
}

#menu .navbar-nav > li .submenu dd a {
  display: flex;
  align-items: center;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  margin-bottom: var(--space-1);
}

#menu .navbar-nav > li .submenu dd a:hover {
  color: var(--color-primary);
  background: rgba(140, 65, 77, 0.06);
  padding-left: var(--space-5);
}

/* 子菜单图片区域 */
#menu .navbar-nav > li .submenu dt {
  padding: var(--space-3);
  border-radius: var(--radius-md);
  overflow: hidden;
}

#menu .navbar-nav > li .submenu dt img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  transition: transform var(--transition-normal);
}

#menu .navbar-nav > li .submenu dt:hover img {
  transform: scale(1.02);
}

/* 购物车/账户/搜索区域 */
.cart-account {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

/* 图标按钮通用样式 */
.cart-wrapper,
.account-toggle,
.search-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: all var(--transition-fast);
  position: relative;
}

.cart-wrapper:hover,
.account-toggle:hover,
.search-toggle:hover {
  color: var(--color-primary);
  background: rgba(140, 65, 77, 0.08);
  transform: scale(1.05);
}

.cart-wrapper:active,
.account-toggle:active,
.search-toggle:active {
  transform: scale(0.95);
}

.cart-wrapper i,
.account-toggle i,
.search-toggle i {
  font-size: 22px;
}

/* 购物车数量徽章 */
.cart-count {
  position: absolute;
  top: 2px;
  right: 2px;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  background: var(--gradient-primary);
  color: var(--color-text-white);
  font-size: 11px;
  font-weight: var(--font-weight-bold);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-primary);
}

/* 账户下拉菜单 */
.account-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  min-width: 200px;
  padding: var(--space-2);
  background: var(--color-bg-primary);
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px) scale(0.96);
  transition: all var(--transition-normal);
  z-index: var(--z-dropdown);
  list-style: none;
  margin: 0;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.95);
}

.account-wrapper:hover .account-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.account-dropdown li a {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: var(--font-size-sm);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.account-dropdown li a:hover {
  color: var(--color-primary);
  background: rgba(140, 65, 77, 0.06);
}

.account-dropdown li a i {
  font-size: 16px;
  width: 20px;
  text-align: center;
}

.account-dropdown .dropdown-header {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border-light);
  margin-bottom: var(--space-2);
}

.account-dropdown .dropdown-header .user-info {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-primary);
  font-weight: var(--font-weight-medium);
}

.account-dropdown .dropdown-divider {
  height: 1px;
  background: var(--color-border-light);
  margin: var(--space-2) 0;
}

/* 搜索框 */
.search-pup .search {
  position: absolute;
  top: 100%;
  right: 0;
  width: 300px;
  padding: var(--space-3);
  background: var(--color-bg-primary);
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition-normal);
  z-index: var(--z-dropdown);
}

.search-pup:hover .search,
.search-pup:focus-within .search {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.search-pup .search input[type="text"] {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  transition: all var(--transition-fast);
}

.search-pup .search input[type="text"]:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(140, 65, 77, 0.15);
}

.search-pup .search input[type="text"]::placeholder {
  color: var(--color-text-tertiary);
}

.searchgo {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  background: var(--gradient-primary);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.searchgo:hover {
  transform: translateY(-50%) scale(1.05);
  box-shadow: var(--shadow-primary);
}

.searchgo::after {
  content: '\F52A';
  font-family: 'bootstrap-icons';
  color: var(--color-text-white);
  font-size: 16px;
}

/* ========================================
   移动端导航样式
   ======================================== */

@media (max-width: 991.98px) {
  /* 移动端头部布局 */
  .tem_inner.tem_head .container {
    flex-wrap: wrap;
    padding: var(--space-3) var(--space-4);
  }
  
  .met-logo img {
    height: 50px;
  }
  
  /* 移动端菜单按钮 */
  .menu-wrapper {
    order: 3;
    width: 100%;
    margin-top: var(--space-3);
  }
  
  #menu .navbar-nav {
    flex-direction: column;
    gap: var(--space-1);
    width: 100%;
  }
  
  #menu .navbar-nav > li > a {
    width: 100%;
    padding: var(--space-4);
    border-radius: var(--radius-md);
    background: var(--color-bg-secondary);
  }
  
  #menu .navbar-nav > li > a:hover {
    background: rgba(140, 65, 77, 0.08);
  }
  
  /* 移动端下拉菜单 */
  #menu .navbar-nav > li .submenu {
    position: static;
    transform: none;
    width: 100%;
    max-width: 100%;
    opacity: 1;
    visibility: visible;
    box-shadow: none;
    border: none;
    border-radius: 0;
    padding: var(--space-2) var(--space-4);
    background: transparent;
    display: none;
  }
  
  #menu .navbar-nav > li:hover .submenu,
  #menu .navbar-nav > li.open .submenu {
    display: block;
  }
  
  /* 移动端图标按钮 */
  .cart-wrapper,
  .account-toggle,
  .search-toggle {
    width: 40px;
    height: 40px;
  }
  
  .cart-wrapper i,
  .account-toggle i,
  .search-toggle i {
    font-size: 20px;
  }
}

@media (max-width: 575.98px) {
  .tem_inner.tem_head .container {
    padding: var(--space-2) var(--space-3);
  }
  
  .met-logo img {
    height: 40px;
  }
  
  .cart-account {
    gap: var(--space-2);
  }
  
  .cart-wrapper,
  .account-toggle,
  .search-toggle {
    width: 36px;
    height: 36px;
  }
  
  .cart-count {
    min-width: 16px;
    height: 16px;
    font-size: 10px;
  }
  
  .search-pup .search {
    width: calc(100vw - var(--space-6));
    right: calc(-50vw + 50% + var(--space-3));
  }
}

/* 导航栏增强样式 */
.navbar-enhanced {
  background: var(--color-bg-primary);
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid var(--color-border-light);
  transition: all var(--transition-normal);
}

.navbar-enhanced.scrolled {
  box-shadow: var(--shadow-md);
}

.navbar-enhanced .nav-link {
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.navbar-enhanced .nav-link:hover {
  color: var(--color-primary);
  background: var(--color-bg-secondary);
}

.navbar-enhanced .nav-link.active {
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
}

/* 按钮系统 */
.btn-enhanced {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-enhanced:focus {
  outline: 2px solid var(--color-primary-lighter);
  outline-offset: 2px;
}

.btn-primary-enhanced {
  background: var(--gradient-primary);
  color: var(--color-text-white);
  box-shadow: var(--shadow-primary);
}

.btn-primary-enhanced:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(140, 65, 77, 0.35);
}

.btn-primary-enhanced:active {
  transform: translateY(0) scale(0.98);
}

.btn-secondary-enhanced {
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

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

.btn-accent-enhanced {
  background: var(--gradient-accent);
  color: var(--color-text-white);
  box-shadow: var(--shadow-accent);
}

.btn-accent-enhanced:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(253, 152, 0, 0.35);
}

/* ========================================
   按钮系统全面升级 - Button System Upgrade
   ======================================== */

/* 基础按钮变量 */
:root {
  --btn-height-sm: 32px;
  --btn-height-md: 40px;
  --btn-height-lg: 48px;
  --btn-height-xl: 56px;
  --btn-padding-sm: var(--space-2) var(--space-3);
  --btn-padding-md: var(--space-3) var(--space-5);
  --btn-padding-lg: var(--space-3) var(--space-6);
  --btn-padding-xl: var(--space-4) var(--space-8);
}

/* 按钮基础样式重置 */
.btn,
.btn-view-cart,
.btn-checkout,
.btn-view-all,
.btn-quick-buy,
.btn-add-to-cart,
.btn-quick-add,
.btn-apply-filter,
.btn-brand-more,
button[type="submit"],
input[type="submit"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--btn-padding-md);
  min-height: var(--btn-height-md);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  vertical-align: middle;
  cursor: pointer;
  user-select: none;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

/* 按钮焦点状态 */
.btn:focus,
.btn-view-cart:focus,
.btn-checkout:focus {
  outline: 2px solid var(--color-primary-lighter);
  outline-offset: 2px;
}

/* 主要按钮 - Primary Button */
.btn-checkout,
.btn-primary,
.btn-quick-buy {
  background: var(--gradient-primary);
  color: var(--color-text-white);
  border: none;
  box-shadow: var(--shadow-primary);
}

.btn-checkout:hover,
.btn-primary:hover,
.btn-quick-buy:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(140, 65, 77, 0.35);
  color: var(--color-text-white);
}

.btn-checkout:active,
.btn-primary:active,
.btn-quick-buy:active {
  transform: translateY(0) scale(0.98);
  box-shadow: var(--shadow-sm);
}

/* 次要按钮 - Secondary Button */
.btn-view-cart,
.btn-secondary,
.btn-view-all {
  background: var(--color-bg-primary);
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-view-cart:hover,
.btn-secondary:hover,
.btn-view-all:hover {
  background: var(--color-primary);
  color: var(--color-text-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-primary);
}

.btn-view-cart:active,
.btn-secondary:active,
.btn-view-all:active {
  transform: translateY(0) scale(0.98);
}

/* 强调按钮 - Accent Button */
.btn-accent,
.btn-add-to-cart {
  background: var(--gradient-accent);
  color: var(--color-text-white);
  border: none;
  box-shadow: var(--shadow-accent);
}

.btn-accent:hover,
.btn-add-to-cart:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(253, 152, 0, 0.35);
  color: var(--color-text-white);
}

.btn-accent:active,
.btn-add-to-cart:active {
  transform: translateY(0) scale(0.98);
}

/* 幽灵按钮 - Ghost Button */
.btn-ghost,
.btn-quick-add {
  background: transparent;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}

.btn-ghost:hover,
.btn-quick-add:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: rgba(140, 65, 77, 0.06);
}

.btn-ghost:active,
.btn-quick-add:active {
  background: rgba(140, 65, 77, 0.1);
  transform: scale(0.98);
}

/* 文本按钮 - Text Button */
.btn-text {
  background: transparent;
  color: var(--color-primary);
  border: none;
  padding: var(--space-2) var(--space-3);
  min-height: auto;
}

.btn-text:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

/* 按钮尺寸变体 */
.btn-sm {
  padding: var(--btn-padding-sm);
  min-height: var(--btn-height-sm);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: var(--btn-padding-lg);
  min-height: var(--btn-height-lg);
  font-size: var(--font-size-md);
  border-radius: var(--radius-lg);
}

.btn-xl {
  padding: var(--btn-padding-xl);
  min-height: var(--btn-height-xl);
  font-size: var(--font-size-lg);
  border-radius: var(--radius-lg);
}

/* 全宽按钮 */
.btn-block {
  display: flex;
  width: 100%;
}

/* 圆形按钮 */
.btn-circle {
  border-radius: var(--radius-full);
  padding: var(--space-3);
  min-width: var(--btn-height-md);
}

/* 图标按钮 */
.btn-icon {
  padding: var(--space-3);
  min-width: var(--btn-height-md);
  min-height: var(--btn-height-md);
}

.btn-icon i {
  font-size: 18px;
}

/* 按钮组 */
.btn-group {
  display: inline-flex;
  gap: 0;
}

.btn-group .btn,
.btn-group .btn-view-cart,
.btn-group .btn-checkout {
  border-radius: 0;
}

.btn-group .btn:first-child,
.btn-group .btn-view-cart:first-child {
  border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.btn-group .btn:last-child,
.btn-group .btn-checkout:last-child {
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

/* 按钮禁用状态 */
.btn:disabled,
.btn-view-cart:disabled,
.btn-checkout:disabled,
.btn-disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
  transform: none !important;
  box-shadow: none !important;
}

/* 按钮加载状态 */
.btn-loading,
.btn-checkout.loading,
.btn-view-cart.loading {
  position: relative;
  color: transparent !important;
  pointer-events: none;
}

.btn-loading::after,
.btn-checkout.loading::after,
.btn-view-cart.loading::after {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: btn-spin 0.8s linear infinite;
}

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

/* 按钮涟漪效果 */
.btn-ripple {
  position: relative;
  overflow: hidden;
}

.btn-ripple::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s ease, height 0.6s ease;
}

.btn-ripple:active::before {
  width: 200%;
  height: 200%;
}

/* 搜索按钮特殊样式 */
.searchgo {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  min-height: 36px;
  padding: 0;
  background: var(--gradient-primary);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.searchgo:hover {
  transform: translateY(-50%) scale(1.08);
  box-shadow: var(--shadow-primary);
}

.searchgo:active {
  transform: translateY(-50%) scale(0.95);
}

.searchgo::after {
  content: '\F52A';
  font-family: 'bootstrap-icons';
  color: var(--color-text-white);
  font-size: 16px;
}

/* 产品卡片快速添加按钮 */
.product-card .btn-quick-add {
  position: absolute;
  bottom: var(--space-4);
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  opacity: 0;
  width: calc(100% - var(--space-6));
  background: var(--color-bg-primary);
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  transition: all var(--transition-normal);
}

.product-card:hover .btn-quick-add {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.product-card .btn-quick-add:hover {
  background: var(--color-primary);
  color: var(--color-text-white);
}

/* 移动端按钮优化 */
@media (max-width: 767.98px) {
  .btn,
  .btn-view-cart,
  .btn-checkout,
  .btn-view-all,
  .btn-quick-buy,
  .btn-add-to-cart,
  .btn-quick-add {
    min-height: var(--btn-height-lg);
    padding: var(--btn-padding-lg);
    font-size: var(--font-size-base);
  }
  
  .btn-sm {
    min-height: var(--btn-height-md);
    padding: var(--btn-padding-md);
  }
  
  .btn-lg,
  .btn-xl {
    min-height: 52px;
    padding: var(--space-4) var(--space-6);
  }
  
  /* 移动端按钮全宽 */
  .btn-mobile-block {
    display: flex;
    width: 100%;
  }
  
  /* 移动端按钮组垂直排列 */
  .btn-group-mobile {
    flex-direction: column;
    gap: var(--space-3);
  }
  
  .btn-group-mobile .btn,
  .btn-group-mobile .btn-view-cart,
  .btn-group-mobile .btn-checkout {
    border-radius: var(--radius-md);
    width: 100%;
  }
  
  /* 购物车按钮优化 */
  .cart-actions {
    flex-direction: column;
    gap: var(--space-3);
  }
  
  .cart-actions .btn-view-cart,
  .cart-actions .btn-checkout {
    width: 100%;
  }
  
  /* 产品卡片按钮始终显示 */
  .product-card .btn-quick-add {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
    width: calc(100% - var(--space-4));
    bottom: var(--space-3);
  }
}

@media (max-width: 575.98px) {
  .btn,
  .btn-view-cart,
  .btn-checkout {
    min-height: 48px;
    padding: var(--space-3) var(--space-5);
    font-size: var(--font-size-sm);
  }
  
  .btn-lg,
  .btn-xl {
    min-height: 48px;
  }
  
  .searchgo {
    width: 32px;
    height: 32px;
    min-height: 32px;
  }
  
  .searchgo::after {
    font-size: 14px;
  }
}

/* 触摸设备优化 */
@media (hover: none) {
  .btn:hover,
  .btn-view-cart:hover,
  .btn-checkout:hover {
    transform: none;
  }
  
  .btn:active,
  .btn-view-cart:active,
  .btn-checkout:active {
    transform: scale(0.98);
  }
  
  /* 触摸设备产品卡片按钮始终显示 */
  .product-card .btn-quick-add {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

/* 卡片系统 */
.card-enhanced {
  background: var(--color-bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
  overflow: hidden;
  transition: all var(--transition-normal);
}

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

.card-enhanced .card-header {
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--color-border-light);
  background: var(--color-bg-secondary);
}

.card-enhanced .card-body {
  padding: var(--space-6);
}

.card-enhanced .card-footer {
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--color-border-light);
  background: var(--color-bg-secondary);
}

/* ========================================
   产品卡片美化 - Product Card Enhancement
   ======================================== */

/* 产品卡片基础样式 */
.product-card {
  background: var(--color-bg-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-normal);
  position: relative;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-border);
}

/* 产品图片容器 */
.product-image-wrapper {
  position: relative;
  overflow: hidden;
  padding-top: 100%;
  background: var(--color-bg-secondary);
}

.product-image-wrapper img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slower) var(--ease-out);
}

.product-card:hover .product-image-wrapper img {
  transform: scale(1.08);
}

/* 产品图片悬停遮罩 */
.product-image-wrapper::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(0, 0, 0, 0.4) 100%);
  opacity: 0;
  transition: opacity var(--transition-normal);
  pointer-events: none;
}

.product-card:hover .product-image-wrapper::after {
  opacity: 1;
}

/* 产品徽章 */
.product-badge {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  z-index: 10;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.product-badge.hot {
  background: linear-gradient(135deg, #ff6b6b, #ee5a5a);
  color: var(--color-text-white);
  box-shadow: 0 2px 8px rgba(238, 90, 90, 0.4);
}

.product-badge.new {
  background: linear-gradient(135deg, #4ecdc4, #44a08d);
  color: var(--color-text-white);
  box-shadow: 0 2px 8px rgba(78, 205, 196, 0.4);
}

.product-badge.sale {
  background: var(--gradient-accent);
  color: var(--color-text-white);
  box-shadow: 0 2px 8px rgba(253, 152, 0, 0.4);
}

.product-badge.soldout {
  background: var(--color-text-disabled);
  color: var(--color-text-white);
}

/* 产品收藏按钮 */
.product-wishlist {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-primary);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-sm);
  z-index: 10;
  opacity: 0;
  transform: translateY(-10px);
  transition: all var(--transition-fast);
  cursor: pointer;
  border: none;
  color: var(--color-text-tertiary);
}

.product-card:hover .product-wishlist {
  opacity: 1;
  transform: translateY(0);
}

.product-wishlist:hover {
  color: var(--color-error);
  transform: scale(1.1);
}

.product-wishlist.active {
  color: var(--color-error);
}

.product-wishlist i {
  font-size: 18px;
}

/* 产品快速操作 */
.product-actions {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4);
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.6));
  transform: translateY(100%);
  transition: transform var(--transition-normal);
}

.product-card:hover .product-actions {
  transform: translateY(0);
}

.product-actions a,
.product-actions button {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-primary);
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  font-size: 18px;
  transition: all var(--transition-fast);
  border: none;
  cursor: pointer;
}

.product-actions a:hover,
.product-actions button:hover {
  background: var(--color-primary);
  color: var(--color-text-white);
  transform: scale(1.1);
}

/* 产品信息区域 */
.product-info {
  padding: var(--space-4);
}

/* 产品分类标签 */
.product-category {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-2);
}

/* 产品标题 */
.product-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-3);
  line-height: var(--line-height-normal);
  min-height: 42px;
}

.product-title a {
  color: var(--color-text-primary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition-fast);
}

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

/* 产品价格 */
.product-price {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.product-price .price {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

.product-price .currency {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

.product-price .original-price {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
  text-decoration: line-through;
}

.product-price .discount {
  font-size: var(--font-size-xs);
  color: var(--color-error);
  background: rgba(245, 63, 63, 0.1);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  margin-left: var(--space-2);
}

/* 产品评分 */
.product-rating {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.product-rating .stars {
  display: flex;
  gap: 2px;
}

.product-rating .stars i {
  font-size: 14px;
  color: var(--color-accent);
}

.product-rating .stars i.empty {
  color: var(--color-border);
}

.product-rating .count {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

/* 产品销量 */
.product-sales {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

.product-sales strong {
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
}

/* 产品底部操作栏 */
.product-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  border-top: 1px solid var(--color-border-light);
  background: var(--color-bg-secondary);
}

/* 产品数量选择 */
.product-quantity {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.product-quantity button {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.product-quantity button:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.product-quantity span {
  min-width: 30px;
  text-align: center;
  font-weight: var(--font-weight-medium);
}

/* 产品卡片列表视图 */
.product-list.list-view .product-card {
  display: flex;
  flex-direction: row;
}

.product-list.list-view .product-image-wrapper {
  width: 200px;
  padding-top: 0;
  min-height: 200px;
}

.product-list.list-view .product-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.product-list.list-view .product-title {
  min-height: auto;
  -webkit-line-clamp: 3;
}

/* 移动端产品卡片优化 */
@media (max-width: 767.98px) {
  .product-card {
    border-radius: var(--radius-md);
  }
  
  .product-card:hover {
    transform: translateY(-4px);
  }
  
  .product-info {
    padding: var(--space-3);
  }
  
  .product-title {
    font-size: var(--font-size-sm);
    min-height: 36px;
  }
  
  .product-price .price {
    font-size: var(--font-size-md);
  }
  
  .product-wishlist {
    opacity: 1;
    transform: translateY(0);
    width: 32px;
    height: 32px;
  }
  
  .product-wishlist i {
    font-size: 16px;
  }
  
  .product-actions {
    transform: translateY(0);
    padding: var(--space-3);
  }
  
  .product-actions a,
  .product-actions button {
    width: 36px;
    height: 36px;
    font-size: 16px;
  }
  
  .product-badge {
    padding: 2px 8px;
    font-size: 10px;
  }
  
  /* 列表视图移动端 */
  .product-list.list-view .product-card {
    flex-direction: column;
  }
  
  .product-list.list-view .product-image-wrapper {
    width: 100%;
    padding-top: 100%;
  }
}

@media (max-width: 575.98px) {
  .product-info {
    padding: var(--space-2);
  }
  
  .product-title {
    font-size: var(--font-size-xs);
    min-height: 32px;
    margin-bottom: var(--space-2);
  }
  
  .product-price .price {
    font-size: var(--font-size-base);
  }
  
  .product-price .original-price {
    font-size: var(--font-size-xs);
  }
  
  .product-rating {
    margin-bottom: var(--space-2);
  }
  
  .product-rating .stars i {
    font-size: 12px;
  }
}

/* 触摸设备优化 */
@media (hover: none) {
  .product-card:hover {
    transform: none;
  }
  
  .product-card:active {
    transform: scale(0.98);
  }
  
  .product-card:hover .product-image-wrapper img {
    transform: none;
  }
  
  .product-wishlist {
    opacity: 1;
    transform: translateY(0);
  }
  
  .product-actions {
    transform: translateY(0);
  }
  
  .product-card:hover .product-image-wrapper::after {
    opacity: 0;
  }
}

/* 产品网格布局 */
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

@media (max-width: 1199.98px) {
  .product-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
  }
}

@media (max-width: 767.98px) {
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
  }
}

@media (max-width: 375px) {
  .product-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
}

/* 产品卡片动画入场 */
.product-card.fade-in {
  animation: productFadeIn var(--duration-slow) var(--ease-out);
}

@keyframes productFadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 表单系统 */
.form-enhanced {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.form-group-enhanced {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-label-enhanced {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
}

.form-input-enhanced {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.form-input-enhanced:hover {
  border-color: var(--color-border-dark);
}

.form-input-enhanced:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(140, 65, 77, 0.15);
}

.form-input-enhanced::placeholder {
  color: var(--color-text-tertiary);
}

.form-input-enhanced.error {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(245, 63, 63, 0.15);
}

/* ========================================
   表单输入优化 - Form Input Enhancement
   ======================================== */

/* 输入框基础样式 */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="tel"],
input[type="number"],
input[type="search"],
input[type="url"],
input[type="date"],
input[type="time"],
input[type="datetime-local"],
textarea,
select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-base);
  font-family: var(--font-family-primary);
  color: var(--color-text-primary);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  outline: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
}

/* 输入框hover状态 */
input[type="text"]:hover,
input[type="email"]:hover,
input[type="password"]:hover,
input[type="tel"]:hover,
input[type="number"]:hover,
input[type="search"]:hover,
textarea:hover,
select:hover {
  border-color: var(--color-border-dark);
}

/* 输入框focus状态 */
input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="tel"]:focus,
input[type="number"]:focus,
input[type="search"]:focus,
textarea:focus,
select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(140, 65, 77, 0.15);
}

/* 输入框占位符 */
input::placeholder,
textarea::placeholder {
  color: var(--color-text-tertiary);
  opacity: 1;
}

/* 输入框禁用状态 */
input:disabled,
textarea:disabled,
select:disabled {
  background: var(--color-bg-secondary);
  color: var(--color-text-disabled);
  cursor: not-allowed;
  opacity: 0.7;
}

/* 输入框只读状态 */
input:read-only,
textarea:read-only {
  background: var(--color-bg-secondary);
  cursor: default;
}

/* 文本域 */
textarea {
  min-height: 120px;
  resize: vertical;
  line-height: var(--line-height-relaxed);
}

textarea.form-sm {
  min-height: 80px;
}

textarea.form-lg {
  min-height: 180px;
}

/* 下拉选择框 */
select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2386909c' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
  padding-right: var(--space-8);
  cursor: pointer;
}

select:focus {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238c414d' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
}

/* 数字输入框移除箭头 */
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

input[type="number"] {
  -moz-appearance: textfield;
}

/* 搜索输入框 */
input[type="search"]::-webkit-search-cancel-button,
input[type="search"]::-webkit-search-decoration {
  -webkit-appearance: none;
}

/* 输入框尺寸变体 */
.form-control-sm {
  padding: var(--space-2) var(--space-3);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
}

.form-control-lg {
  padding: var(--space-4) var(--space-5);
  font-size: var(--font-size-md);
  border-radius: var(--radius-lg);
}

/* 输入框验证状态 */
.form-control.is-valid,
input.valid,
textarea.valid {
  border-color: var(--color-success);
}

.form-control.is-valid:focus,
input.valid:focus,
textarea.valid:focus {
  box-shadow: 0 0 0 3px rgba(0, 180, 42, 0.15);
}

.form-control.is-invalid,
input.error,
textarea.error,
input.invalid,
textarea.invalid {
  border-color: var(--color-error);
}

.form-control.is-invalid:focus,
input.error:focus,
textarea.error:focus {
  box-shadow: 0 0 0 3px rgba(245, 63, 63, 0.15);
}

/* 表单提示信息 */
.form-hint {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  margin-top: var(--space-1);
}

.form-error {
  font-size: var(--font-size-xs);
  color: var(--color-error);
  margin-top: var(--space-1);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.form-error::before {
  content: '\F33A';
  font-family: 'bootstrap-icons';
  font-size: 14px;
}

.form-success {
  font-size: var(--font-size-xs);
  color: var(--color-success);
  margin-top: var(--space-1);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.form-success::before {
  content: '\F272';
  font-family: 'bootstrap-icons';
  font-size: 14px;
}

/* 复选框和单选框 */
.form-check {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  cursor: pointer;
  min-height: 44px;
  padding: var(--space-2) 0;
}

.form-check-input {
  width: 20px;
  height: 20px;
  margin: 0;
  cursor: pointer;
  accent-color: var(--color-primary);
  flex-shrink: 0;
}

.form-check-input[type="checkbox"] {
  border-radius: var(--radius-sm);
}

.form-check-input[type="radio"] {
  border-radius: var(--radius-full);
}

.form-check-input:focus {
  outline: 2px solid var(--color-primary-lighter);
  outline-offset: 2px;
}

.form-check-label {
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  cursor: pointer;
  user-select: none;
}

/* 自定义复选框样式 */
.custom-checkbox,
.custom-radio {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  cursor: pointer;
  min-height: 44px;
  padding: var(--space-2) 0;
}

.custom-checkbox input,
.custom-radio input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
}

.custom-checkbox .checkmark,
.custom-radio .checkmark {
  width: 22px;
  height: 22px;
  background: var(--color-bg-primary);
  border: 2px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.custom-checkbox .checkmark {
  border-radius: var(--radius-sm);
}

.custom-radio .checkmark {
  border-radius: var(--radius-full);
}

.custom-checkbox:hover .checkmark,
.custom-radio:hover .checkmark {
  border-color: var(--color-primary);
}

.custom-checkbox input:checked ~ .checkmark,
.custom-radio input:checked ~ .checkmark {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.custom-checkbox input:checked ~ .checkmark::after {
  content: '';
  width: 6px;
  height: 10px;
  border: solid var(--color-text-white);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
  margin-bottom: 2px;
}

.custom-radio input:checked ~ .checkmark::after {
  content: '';
  width: 10px;
  height: 10px;
  background: var(--color-text-white);
  border-radius: var(--radius-full);
}

.custom-checkbox input:focus ~ .checkmark,
.custom-radio input:focus ~ .checkmark {
  box-shadow: 0 0 0 3px rgba(140, 65, 77, 0.15);
}

/* 开关按钮 */
.form-switch {
  position: relative;
  display: inline-flex;
  align-items: center;
  cursor: pointer;
  min-height: 44px;
}

.form-switch input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.form-switch .slider {
  width: 48px;
  height: 26px;
  background: var(--color-border);
  border-radius: var(--radius-full);
  position: relative;
  transition: all var(--transition-fast);
}

.form-switch .slider::before {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  left: 3px;
  top: 3px;
  background: var(--color-bg-primary);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.form-switch input:checked + .slider {
  background: var(--color-primary);
}

.form-switch input:checked + .slider::before {
  transform: translateX(22px);
}

.form-switch input:focus + .slider {
  box-shadow: 0 0 0 3px rgba(140, 65, 77, 0.15);
}

/* 输入框组 */
.input-group {
  display: flex;
  width: 100%;
}

.input-group .form-control,
.input-group input,
.input-group textarea {
  flex: 1;
  min-width: 0;
}

.input-group .form-control:not(:first-child),
.input-group input:not(:first-child) {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
}

.input-group .form-control:not(:last-child),
.input-group input:not(:last-child) {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}

.input-group-text {
  display: flex;
  align-items: center;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  white-space: nowrap;
}

.input-group-text:first-child {
  border-right: 0;
  border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.input-group-text:last-child {
  border-left: 0;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

/* 浮动标签 */
.form-floating {
  position: relative;
}

.form-floating input,
.form-floating textarea {
  padding: var(--space-5) var(--space-4) var(--space-2);
}

.form-floating label {
  position: absolute;
  top: 0;
  left: var(--space-4);
  font-size: var(--font-size-base);
  color: var(--color-text-tertiary);
  pointer-events: none;
  transform: translateY(var(--space-3));
  transition: all var(--transition-fast);
}

.form-floating input:focus ~ label,
.form-floating input:not(:placeholder-shown) ~ label,
.form-floating textarea:focus ~ label,
.form-floating textarea:not(:placeholder-shown) ~ label {
  font-size: var(--font-size-xs);
  color: var(--color-primary);
  transform: translateY(var(--space-1));
}

/* 移动端表单优化 */
@media (max-width: 767.98px) {
  input[type="text"],
  input[type="email"],
  input[type="password"],
  input[type="tel"],
  input[type="number"],
  input[type="search"],
  textarea,
  select {
    min-height: 48px;
    padding: var(--space-4);
    font-size: 16px; /* 防止iOS自动缩放 */
  }
  
  textarea {
    min-height: 100px;
  }
  
  .form-check,
  .custom-checkbox,
  .custom-radio {
    min-height: 48px;
    padding: var(--space-3) 0;
  }
  
  .form-check-input,
  .custom-checkbox .checkmark,
  .custom-radio .checkmark {
    width: 24px;
    height: 24px;
  }
  
  .form-switch .slider {
    width: 52px;
    height: 30px;
  }
  
  .form-switch .slider::before {
    width: 24px;
    height: 24px;
  }
  
  .form-switch input:checked + .slider::before {
    transform: translateX(22px);
  }
  
  .form-control-sm {
    min-height: 44px;
    padding: var(--space-3);
  }
  
  .form-control-lg {
    min-height: 52px;
    padding: var(--space-4) var(--space-5);
  }
}

@media (max-width: 575.98px) {
  input[type="text"],
  input[type="email"],
  input[type="password"],
  input[type="tel"],
  input[type="number"],
  input[type="search"],
  select {
    min-height: 44px;
    padding: var(--space-3) var(--space-4);
  }
  
  textarea {
    min-height: 80px;
  }
  
  .input-group {
    flex-direction: column;
  }
  
  .input-group .form-control,
  .input-group input {
    border-radius: var(--radius-md) !important;
    margin-bottom: var(--space-2);
  }
  
  .input-group-text {
    border-radius: var(--radius-md) !important;
    justify-content: center;
  }
}

/* 触摸设备优化 */
@media (hover: none) {
  input:hover,
  textarea:hover,
  select:hover {
    border-color: var(--color-border);
  }
  
  input:focus,
  textarea:focus,
  select:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(140, 65, 77, 0.15);
  }
}

/* 高对比度模式 */
@media (prefers-contrast: high) {
  input,
  textarea,
  select {
    border-width: 2px;
  }
  
  .form-check-input,
  .custom-checkbox .checkmark,
  .custom-radio .checkmark {
    border-width: 2px;
  }
}

/* 减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
  input,
  textarea,
  select,
  .form-switch .slider,
  .form-switch .slider::before {
    transition: none;
  }
}

/* 徽章系统 */
.badge-enhanced {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-2);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-full);
}

.badge-primary {
  background: rgba(140, 65, 77, 0.1);
  color: var(--color-primary);
}

.badge-success {
  background: rgba(0, 180, 42, 0.1);
  color: var(--color-success);
}

.badge-warning {
  background: rgba(255, 125, 0, 0.1);
  color: var(--color-warning);
}

.badge-error {
  background: rgba(245, 63, 63, 0.1);
  color: var(--color-error);
}

/* ========================================
   购物车下拉美化 - Cart Dropdown Enhancement
   ======================================== */

/* 购物车下拉容器 */
.cart-dropdown {
  position: absolute;
  top: calc(100% + var(--space-2));
  right: 0;
  width: 400px;
  max-height: 520px;
  background: var(--color-bg-primary);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-2xl);
  border: 1px solid var(--color-border-light);
  overflow: hidden;
  z-index: var(--z-dropdown);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px) scale(0.96);
  transition: all var(--transition-normal);
  /* 毛玻璃效果 */
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  background: rgba(255, 255, 255, 0.98);
}

#cart:hover .cart-dropdown,
#cart.show-cart .cart-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

/* 购物车头部 */
.cart-dropdown-header {
  padding: var(--space-4) var(--space-5);
  background: var(--gradient-primary);
  color: var(--color-text-white);
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.cart-dropdown-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, transparent 50%);
}

.cart-dropdown-header h4 {
  margin: 0;
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  position: relative;
  z-index: 1;
}

.cart-dropdown-header h4 i {
  font-size: 20px;
}

.cart-dropdown-header .item-count {
  font-size: var(--font-size-sm);
  opacity: 0.9;
  background: rgba(255, 255, 255, 0.2);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  position: relative;
  z-index: 1;
}

/* 购物车内容区域 */
.cart-content {
  max-height: 340px;
  overflow-y: auto;
  padding: var(--space-2);
  scrollbar-width: thin;
  scrollbar-color: var(--color-primary) var(--color-bg-secondary);
}

.cart-content::-webkit-scrollbar {
  width: 6px;
}

.cart-content::-webkit-scrollbar-track {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-full);
}

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

.cart-content::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary-light);
}

/* 空购物车状态 */
.cart-empty {
  text-align: center;
  padding: var(--space-10) var(--space-6);
}

.cart-empty .empty-icon {
  font-size: 64px;
  color: var(--color-border);
  margin-bottom: var(--space-4);
  opacity: 0.6;
}

.cart-empty .empty-icon i {
  display: block;
}

.cart-empty p {
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-4);
  font-size: var(--font-size-base);
}

.cart-empty .continue-shopping {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  background: var(--gradient-primary);
  color: var(--color-text-white);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-primary);
}

.cart-empty .continue-shopping:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(140, 65, 77, 0.35);
}

.cart-empty .continue-shopping i {
  font-size: 16px;
}

/* 购物车商品项 */
.cart-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
  margin-bottom: var(--space-2);
  position: relative;
}

.cart-item:hover {
  background: var(--color-bg-secondary);
}

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

/* 商品图片 */
.cart-item-image {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-md);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--color-bg-secondary);
  position: relative;
}

.cart-item-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.cart-item:hover .cart-item-image img {
  transform: scale(1.05);
}

/* 商品信息 */
.cart-item-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.cart-item-name {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  text-decoration: none;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: var(--line-height-normal);
  transition: color var(--transition-fast);
}

.cart-item-name:hover {
  color: var(--color-primary);
}

/* 商品规格 */
.cart-item-spec {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

.cart-item-spec span {
  background: var(--color-bg-tertiary);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}

/* 价格和数量行 */
.cart-item-price-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
}

/* 数量显示 */
.cart-item-qty {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.cart-item-qty .qty-btn {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  font-size: 14px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.cart-item-qty .qty-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.cart-item-qty .qty-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.cart-item-qty .qty-text {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  min-width: 24px;
  text-align: center;
}

/* 商品价格 */
.cart-item-price {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

.cart-item-price .currency {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
}

/* 删除按钮 */
.cart-item-remove {
  position: absolute;
  top: var(--space-2);
  right: var(--space-2);
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--color-text-tertiary);
  cursor: pointer;
  transition: all var(--transition-fast);
  opacity: 0;
}

.cart-item:hover .cart-item-remove {
  opacity: 1;
}

.cart-item-remove:hover {
  background: rgba(245, 63, 63, 0.1);
  color: var(--color-error);
}

.cart-item-remove i {
  font-size: 14px;
}

/* 购物车底部 */
.cart-footer {
  padding: var(--space-4) var(--space-5);
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border-light);
}

/* 合计金额 */
.cart-total-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-4);
}

.cart-total-label {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
}

.cart-total-value {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

.cart-total-value .currency {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

/* 购物车操作按钮 */
.cart-actions {
  display: flex;
  gap: var(--space-3);
}

.cart-actions .btn-view-cart,
.cart-actions .btn-checkout {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-md);
  text-align: center;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.cart-actions .btn-view-cart {
  background: var(--color-bg-primary);
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.cart-actions .btn-view-cart:hover {
  background: var(--color-primary);
  color: var(--color-text-white);
}

.cart-actions .btn-checkout {
  background: var(--gradient-primary);
  color: var(--color-text-white);
  border: none;
  box-shadow: var(--shadow-primary);
}

.cart-actions .btn-checkout:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(140, 65, 77, 0.35);
}

/* 优惠信息 */
.cart-promo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: rgba(253, 152, 0, 0.1);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-3);
}

.cart-promo i {
  color: var(--color-accent);
  font-size: 16px;
}

.cart-promo span {
  font-size: var(--font-size-xs);
  color: var(--color-accent-dark);
}

/* 移动端购物车优化 */
@media (max-width: 767.98px) {
  .cart-dropdown {
    position: fixed;
    top: auto;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    max-height: 80vh;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    transform: translateY(100%);
    box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.2);
  }
  
  #cart:hover .cart-dropdown,
  #cart.show-cart .cart-dropdown {
    transform: translateY(0);
  }
  
  .cart-dropdown-header {
    padding: var(--space-4);
  }
  
  .cart-content {
    max-height: 40vh;
  }
  
  .cart-item {
    padding: var(--space-3);
  }
  
  .cart-item-image {
    width: 70px;
    height: 70px;
  }
  
  .cart-item-remove {
    opacity: 1;
  }
  
  .cart-footer {
    padding: var(--space-4);
  }
  
  .cart-actions {
    flex-direction: column;
    gap: var(--space-2);
  }
  
  .cart-actions .btn-view-cart,
  .cart-actions .btn-checkout {
    width: 100%;
    padding: var(--space-4);
  }
}

@media (max-width: 575.98px) {
  .cart-dropdown {
    max-height: 85vh;
  }
  
  .cart-content {
    max-height: 45vh;
  }
  
  .cart-item {
    gap: var(--space-2);
    padding: var(--space-2);
  }
  
  .cart-item-image {
    width: 60px;
    height: 60px;
  }
  
  .cart-item-name {
    font-size: var(--font-size-xs);
  }
  
  .cart-item-price {
    font-size: var(--font-size-sm);
  }
  
  .cart-total-value {
    font-size: var(--font-size-lg);
  }
}

/* 触摸设备优化 */
@media (hover: none) {
  .cart-item-remove {
    opacity: 1;
  }
  
  .cart-item:hover {
    background: transparent;
  }
  
  .cart-item:active {
    background: var(--color-bg-secondary);
  }
}

/* 购物车动画 */
.cart-item.adding {
  animation: cartItemAdd var(--duration-normal) var(--ease-out);
}

@keyframes cartItemAdd {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.cart-item.removing {
  animation: cartItemRemove var(--duration-normal) var(--ease-in);
}

@keyframes cartItemRemove {
  from {
    opacity: 1;
    transform: translateX(0);
  }
  to {
    opacity: 0;
    transform: translateX(20px);
  }
}

/* 购物车数量更新动画 */
.cart-count.updating {
  animation: cartCountPulse var(--duration-fast) var(--ease-out);
}

@keyframes cartCountPulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.3); }
  100% { transform: scale(1); }
}

/* ========================================
   Banner轮播优化 - Banner Carousel Enhancement
   ======================================== */

/* Banner容器 */
.tem_banner {
  position: relative;
  overflow: hidden;
  max-height: 600px;
}

.tem_banner .flexslider {
  margin: 0;
  border: none;
  overflow: hidden;
}

/* Banner幻灯片 */
.tem_banner .flexslider .slides {
  position: relative;
  z-index: 1;
}

.tem_banner .flexslider .slides li {
  position: relative;
  overflow: hidden;
}

/* Banner图片 */
.tem_banner .flexslider .slides li img {
  width: 100%;
  height: auto;
  object-fit: cover;
  transition: transform var(--duration-slower) var(--ease-out);
}

.tem_banner:hover .flexslider .slides li img {
  transform: scale(1.02);
}

/* Banner渐变遮罩 */
.tem_banner .flexslider .slides li::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    to right,
    rgba(0, 0, 0, 0.4) 0%,
    rgba(0, 0, 0, 0.2) 30%,
    transparent 50%
  );
  z-index: 1;
  pointer-events: none;
}

/* Banner底部渐变 */
.tem_banner .flexslider .slides li::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 150px;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.3), transparent);
  z-index: 1;
  pointer-events: none;
}

/* Banner内容区域 */
.banner-content {
  position: absolute;
  top: 50%;
  left: 10%;
  transform: translateY(-50%);
  z-index: 10;
  max-width: 600px;
  color: var(--color-text-white);
  animation: bannerFadeInUp 0.8s var(--ease-out);
}

@keyframes bannerFadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(-50%);
  }
}

.banner-content .banner-title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-4);
  line-height: var(--line-height-tight);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.banner-content .banner-subtitle {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-6);
  opacity: 0.9;
  line-height: var(--line-height-relaxed);
}

.banner-content .banner-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  background: var(--gradient-primary);
  color: var(--color-text-white);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-full);
  text-decoration: none;
  box-shadow: var(--shadow-primary);
  transition: all var(--transition-fast);
}

.banner-content .banner-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(140, 65, 77, 0.4);
}

.banner-content .banner-btn i {
  font-size: 18px;
}

/* 轮播指示器 - 分页点 */
.tem_banner .flex-control-nav {
  bottom: var(--space-8);
  z-index: 10;
}

.tem_banner .flex-control-paging {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
}

.tem_banner .flex-control-paging li {
  margin: 0;
}

.tem_banner .flex-control-paging li a {
  display: block;
  width: 12px;
  height: 12px;
  background: rgba(255, 255, 255, 0.4);
  border: 2px solid transparent;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
}

.tem_banner .flex-control-paging li a:hover {
  background: rgba(255, 255, 255, 0.7);
  transform: scale(1.2);
}

.tem_banner .flex-control-paging li a.flex-active {
  background: var(--color-text-white);
  border-color: var(--color-primary);
  transform: scale(1.3);
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

/* 轮播指示器 - 进度条样式 */
.banner-progress-dots .flex-control-paging li a {
  width: 30px;
  height: 4px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.3);
}

.banner-progress-dots .flex-control-paging li a.flex-active {
  background: var(--color-text-white);
  transform: none;
}

/* 轮播箭头 - 左右导航 */
.tem_banner .flex-direction-nav {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  transform: translateY(-50%);
  z-index: 10;
  display: flex;
  justify-content: space-between;
  padding: 0 var(--space-4);
  pointer-events: none;
}

.tem_banner .flex-direction-nav li {
  list-style: none;
}

.tem_banner .flex-direction-nav a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
  pointer-events: auto;
  opacity: 0;
  transform: translateX(0);
}

.tem_banner:hover .flex-direction-nav a {
  opacity: 1;
}

.tem_banner .flex-direction-nav .flex-prev {
  transform: translateX(-20px);
}

.tem_banner .flex-direction-nav .flex-next {
  transform: translateX(20px);
}

.tem_banner:hover .flex-direction-nav .flex-prev {
  transform: translateX(0);
}

.tem_banner:hover .flex-direction-nav .flex-next {
  transform: translateX(0);
}

.tem_banner .flex-direction-nav a::before {
  font-family: 'bootstrap-icons';
  font-size: 24px;
  color: var(--color-text-primary);
  transition: color var(--transition-fast);
}

.tem_banner .flex-direction-nav .flex-prev::before {
  content: '\F284';
}

.tem_banner .flex-direction-nav .flex-next::before {
  content: '\F285';
}

.tem_banner .flex-direction-nav a:hover {
  background: var(--color-primary);
  box-shadow: var(--shadow-primary);
}

.tem_banner .flex-direction-nav a:hover::before {
  color: var(--color-text-white);
}

/* Banner进度条 */
.banner-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: rgba(0, 0, 0, 0.2);
  z-index: 10;
}

.banner-progress-bar {
  height: 100%;
  background: var(--gradient-primary);
  width: 0;
  animation: bannerProgress var(--duration-slower) linear;
}

@keyframes bannerProgress {
  from { width: 0; }
  to { width: 100%; }
}

/* Banner幻灯片切换动画 */
.tem_banner .flexslider .slides li {
  animation: bannerSlideIn var(--duration-slow) var(--ease-out);
}

@keyframes bannerSlideIn {
  from {
    opacity: 0;
    transform: scale(1.1);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Banner文字动画 */
.banner-content .banner-title {
  animation: bannerTitleIn 0.6s var(--ease-out) 0.2s both;
}

.banner-content .banner-subtitle {
  animation: bannerSubtitleIn 0.6s var(--ease-out) 0.4s both;
}

.banner-content .banner-btn {
  animation: bannerBtnIn 0.6s var(--ease-out) 0.6s both;
}

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

@keyframes bannerSubtitleIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes bannerBtnIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 移动端Banner优化 */
@media (max-width: 991.98px) {
  .tem_banner {
    max-height: 450px;
  }
  
  .banner-content {
    left: 5%;
    right: 5%;
    max-width: none;
  }
  
  .banner-content .banner-title {
    font-size: var(--font-size-2xl);
  }
  
  .banner-content .banner-subtitle {
    font-size: var(--font-size-base);
  }
  
  .banner-content .banner-btn {
    padding: var(--space-3) var(--space-6);
    font-size: var(--font-size-sm);
  }
  
  .tem_banner .flex-direction-nav a {
    width: 44px;
    height: 44px;
    opacity: 1;
  }
  
  .tem_banner .flex-direction-nav a::before {
    font-size: 20px;
  }
  
  .tem_banner .flex-control-nav {
    bottom: var(--space-4);
  }
  
  .tem_banner .flex-control-paging li a {
    width: 10px;
    height: 10px;
  }
}

@media (max-width: 767.98px) {
  .tem_banner {
    max-height: 350px;
  }
  
  .banner-content {
    top: 50%;
    left: var(--space-4);
    right: var(--space-4);
    transform: translateY(-50%);
  }
  
  @keyframes bannerFadeInUp {
    from {
      opacity: 0;
      transform: translateY(20px);
    }
    to {
      opacity: 1;
      transform: translateY(-50%);
    }
  }
  
  .banner-content .banner-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-2);
  }
  
  .banner-content .banner-subtitle {
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-4);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  
  .banner-content .banner-btn {
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-xs);
  }
  
  .tem_banner .flex-direction-nav {
    display: none;
  }
  
  .tem_banner .flex-control-paging li a {
    width: 8px;
    height: 8px;
  }
}

@media (max-width: 575.98px) {
  .tem_banner {
    max-height: 280px;
  }
  
  .banner-content {
    left: var(--space-3);
    right: var(--space-3);
  }
  
  .banner-content .banner-title {
    font-size: var(--font-size-lg);
  }
  
  .banner-content .banner-subtitle {
    font-size: var(--font-size-xs);
    -webkit-line-clamp: 1;
  }
}

/* 触摸设备优化 */
@media (hover: none) {
  .tem_banner:hover .flexslider .slides li img {
    transform: none;
  }
  
  .tem_banner .flex-direction-nav a {
    opacity: 1;
    transform: none;
  }
  
  .tem_banner .flex-direction-nav .flex-prev,
  .tem_banner .flex-direction-nav .flex-next {
    transform: none;
  }
}

/* 减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
  .tem_banner .flexslider .slides li,
  .banner-content,
  .banner-content .banner-title,
  .banner-content .banner-subtitle,
  .banner-content .banner-btn,
  .tem_banner .flex-control-paging li a,
  .tem_banner .flex-direction-nav a {
    animation: none;
    transition: none;
  }
}

/* 高对比度模式 */
@media (prefers-contrast: high) {
  .tem_banner .flexslider .slides li::before,
  .tem_banner .flexslider .slides li::after {
    background: rgba(0, 0, 0, 0.6);
  }
  
  .tem_banner .flex-control-paging li a {
    border-width: 2px;
  }
}

/* ========================================
   页脚信息重构 - Footer Enhancement
   ======================================== */

/* 页脚主容器 */
.tem_footer {
  background: var(--gradient-dark);
  color: var(--color-text-white);
  position: relative;
  overflow: hidden;
}

.tem_footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
}

/* 页脚内容容器 */
.tem_footer .container {
  padding: var(--space-12) var(--space-6);
}

/* 页脚网格布局 */
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
  gap: var(--space-8);
}

/* 页脚品牌区域 */
.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.footer-brand .logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.footer-brand .logo img {
  height: 48px;
  width: auto;
  filter: brightness(0) invert(1);
}

.footer-brand .logo-text {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-white);
}

.footer-brand .brand-desc {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.7);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-4);
}

/* 社交媒体图标 */
.footer-social {
  display: flex;
  gap: var(--space-3);
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  color: var(--color-text-white);
  font-size: 18px;
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  background: var(--color-primary);
  transform: translateY(-3px);
  box-shadow: 0 4px 12px rgba(140, 65, 77, 0.4);
}

/* 页脚列 */
.footer-column {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.footer-column .column-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-white);
  margin-bottom: var(--space-2);
  position: relative;
  padding-bottom: var(--space-2);
}

.footer-column .column-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 2px;
  background: var(--color-primary);
}

/* 页脚链接列表 */
.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-links li a {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--font-size-sm);
  text-decoration: none;
  transition: all var(--transition-fast);
  padding: var(--space-1) 0;
}

.footer-links li a:hover {
  color: var(--color-text-white);
  padding-left: var(--space-2);
}

.footer-links li a i {
  font-size: 14px;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.footer-links li a:hover i {
  opacity: 1;
}

/* 页脚联系方式 */
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--font-size-sm);
}

.footer-contact-item i {
  font-size: 18px;
  color: var(--color-primary-light);
  margin-top: 2px;
}

.footer-contact-item a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

/* 页脚订阅表单 */
.footer-subscribe {
  margin-top: var(--space-4);
}

.footer-subscribe .subscribe-title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-white);
  margin-bottom: var(--space-3);
}

.footer-subscribe .subscribe-form {
  display: flex;
  gap: var(--space-2);
}

.footer-subscribe input[type="email"] {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  color: var(--color-text-white);
  font-size: var(--font-size-sm);
  outline: none;
  transition: all var(--transition-fast);
}

.footer-subscribe input[type="email"]::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.footer-subscribe input[type="email"]:focus {
  border-color: var(--color-primary);
  background: rgba(255, 255, 255, 0.15);
}

.footer-subscribe button {
  padding: var(--space-3) var(--space-5);
  background: var(--gradient-primary);
  border: none;
  border-radius: var(--radius-md);
  color: var(--color-text-white);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.footer-subscribe button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-primary);
}

/* 页脚导航 */
.tem_footer_nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  padding: var(--space-4) 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin: var(--space-6) 0;
}

.tem_footer_nav a {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--font-size-sm);
  text-decoration: none;
  transition: color var(--transition-fast);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
}

.tem_footer_nav a:hover {
  color: var(--color-text-white);
  background: rgba(255, 255, 255, 0.1);
}

.tem_footer_nav a i {
  font-size: 16px;
}

/* 页脚底部 */
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-4);
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-copyright {
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.5);
}

.footer-copyright a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

/* 页脚支付图标 */
.footer-payments {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.footer-payments span {
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.5);
}

.footer-payments img {
  height: 24px;
  width: auto;
  opacity: 0.7;
  transition: opacity var(--transition-fast);
  filter: brightness(0) invert(1);
}

.footer-payments img:hover {
  opacity: 1;
}

/* 页脚认证徽章 */
.footer-badges {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.footer-badges a {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--font-size-xs);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.footer-badges a:hover {
  background: rgba(255, 255, 255, 0.15);
  color: var(--color-text-white);
}

.footer-badges a i {
  font-size: 16px;
}

/* 返回顶部按钮 */
.back-to-top {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  width: 48px;
  height: 48px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-white);
  font-size: 20px;
  box-shadow: var(--shadow-primary);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-normal);
  z-index: var(--z-fixed);
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(140, 65, 77, 0.4);
}

/* 移动端页脚优化 */
@media (max-width: 991.98px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
  }
  
  .footer-brand {
    grid-column: 1 / -1;
  }
  
  .tem_footer .container {
    padding: var(--space-8) var(--space-4);
  }
}

@media (max-width: 767.98px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  
  .footer-brand {
    text-align: center;
    align-items: center;
  }
  
  .footer-social {
    justify-content: center;
  }
  
  .footer-column {
    text-align: center;
  }
  
  .footer-column .column-title::after {
    left: 50%;
    transform: translateX(-50%);
  }
  
  .footer-links li a {
    justify-content: center;
  }
  
  .footer-links li a:hover {
    padding-left: 0;
  }
  
  .footer-contact-item {
    justify-content: center;
    text-align: center;
  }
  
  .footer-subscribe .subscribe-form {
    flex-direction: column;
  }
  
  .tem_footer_nav {
    justify-content: center;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .footer-payments,
  .footer-badges {
    justify-content: center;
  }
  
  .back-to-top {
    bottom: var(--space-4);
    right: var(--space-4);
    width: 44px;
    height: 44px;
  }
}

@media (max-width: 575.98px) {
  .tem_footer .container {
    padding: var(--space-6) var(--space-3);
  }
  
  .footer-brand .logo img {
    height: 36px;
  }
  
  .footer-brand .logo-text {
    font-size: var(--font-size-lg);
  }
  
  .footer-social a {
    width: 36px;
    height: 36px;
    font-size: 16px;
  }
  
  .tem_footer_nav {
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
  }
  
  .tem_footer_nav a {
    width: 100%;
    justify-content: center;
  }
}

/* 触摸设备优化 */
@media (hover: none) {
  .footer-links li a:hover {
    padding-left: 0;
  }
  
  .footer-social a:hover {
    transform: none;
  }
  
  .back-to-top:hover {
    transform: none;
  }
}

/* 高对比度模式 */
@media (prefers-contrast: high) {
  .tem_footer {
    background: var(--color-bg-dark);
  }
  
  .footer-links li a,
  .tem_footer_nav a,
  .footer-contact-item {
    color: var(--color-text-white);
  }
}

/* 减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
  .footer-social a,
  .footer-links li a,
  .back-to-top {
    transition: none;
  }
}

/* ========================================
   移动端底部导航 - Mobile Bottom Navigation
   ======================================== */

/* 移动端底部导航栏 */
.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-bg-primary);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
  z-index: var(--z-fixed);
  padding-bottom: env(safe-area-inset-bottom);
}

/* 导航项容器 */
.mobile-bottom-nav .nav-items {
  display: flex;
  justify-content: space-around;
  align-items: center;
  height: 60px;
  max-width: 500px;
  margin: 0 auto;
}

/* 导航项 */
.mobile-bottom-nav .nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  height: 100%;
  padding: var(--space-2) var(--space-1);
  color: var(--color-text-tertiary);
  text-decoration: none;
  transition: all var(--transition-fast);
  position: relative;
  min-width: 60px;
}

/* 导航项图标 */
.mobile-bottom-nav .nav-item i {
  font-size: 22px;
  margin-bottom: 2px;
  transition: transform var(--transition-fast);
}

/* 导航项文字 */
.mobile-bottom-nav .nav-item span {
  font-size: 10px;
  font-weight: var(--font-weight-medium);
  white-space: nowrap;
}

/* 导航项hover效果 */
.mobile-bottom-nav .nav-item:hover {
  color: var(--color-text-secondary);
}

.mobile-bottom-nav .nav-item:hover i {
  transform: scale(1.1);
}

/* 导航项active状态 */
.mobile-bottom-nav .nav-item.active {
  color: var(--color-primary);
}

.mobile-bottom-nav .nav-item.active i {
  transform: scale(1.1);
}

/* 导航项active指示器 */
.mobile-bottom-nav .nav-item.active::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}

/* 购物车徽章 */
.mobile-bottom-nav .nav-item .nav-badge {
  position: absolute;
  top: 4px;
  right: calc(50% - 20px);
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  background: var(--gradient-primary);
  color: var(--color-text-white);
  font-size: 10px;
  font-weight: var(--font-weight-bold);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-primary);
}

/* 中间突出按钮 */
.mobile-bottom-nav .nav-item.center-button {
  position: relative;
  margin-top: -20px;
}

.mobile-bottom-nav .nav-item.center-button::after {
  content: '';
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  width: 56px;
  height: 56px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-primary);
  z-index: -1;
}

.mobile-bottom-nav .nav-item.center-button i {
  font-size: 26px;
  color: var(--color-text-white);
  margin-bottom: 4px;
}

.mobile-bottom-nav .nav-item.center-button span {
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
}

/* 导航项点击反馈 */
.mobile-bottom-nav .nav-item:active {
  background: rgba(140, 65, 77, 0.05);
}

.mobile-bottom-nav .nav-item:active i {
  transform: scale(0.95);
}

/* 移动端显示底部导航 */
@media (max-width: 767.98px) {
  .mobile-bottom-nav {
    display: block;
  }
  
  /* 为页面底部留出空间 */
  body {
    padding-bottom: 60px;
  }
  
  /* 页脚增加底部间距 */
  .tem_footer {
    padding-bottom: calc(var(--space-8) + 60px);
  }
  
  /* 返回顶部按钮上移 */
  .back-to-top {
    bottom: calc(var(--space-6) + 60px);
  }
}

@media (max-width: 575.98px) {
  .mobile-bottom-nav .nav-items {
    height: 56px;
  }
  
  .mobile-bottom-nav .nav-item i {
    font-size: 20px;
  }
  
  .mobile-bottom-nav .nav-item span {
    font-size: 9px;
  }
  
  .mobile-bottom-nav .nav-item .nav-badge {
    min-width: 16px;
    height: 16px;
    font-size: 9px;
  }
  
  .mobile-bottom-nav .nav-item.center-button::after {
    width: 50px;
    height: 50px;
    top: -18px;
  }
  
  .mobile-bottom-nav .nav-item.center-button i {
    font-size: 24px;
  }
  
  body {
    padding-bottom: 56px;
  }
  
  .back-to-top {
    bottom: calc(var(--space-4) + 56px);
  }
}

/* iPhone X及以上安全区域适配 */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
  @media (max-width: 767.98px) {
    .mobile-bottom-nav {
      padding-bottom: env(safe-area-inset-bottom);
    }
    
    body {
      padding-bottom: calc(60px + env(safe-area-inset-bottom));
    }
    
    .back-to-top {
      bottom: calc(var(--space-6) + 60px + env(safe-area-inset-bottom));
    }
  }
  
  @media (max-width: 575.98px) {
    body {
      padding-bottom: calc(56px + env(safe-area-inset-bottom));
    }
  }
}

/* 横屏模式隐藏底部导航 */
@media (max-width: 767.98px) and (orientation: landscape) {
  .mobile-bottom-nav {
    display: none;
  }
  
  body {
    padding-bottom: 0;
  }
  
  .back-to-top {
    bottom: var(--space-6);
  }
}

/* 触摸设备优化 */
@media (hover: none) {
  .mobile-bottom-nav .nav-item:hover {
    color: var(--color-text-tertiary);
  }
  
  .mobile-bottom-nav .nav-item:hover i {
    transform: none;
  }
  
  .mobile-bottom-nav .nav-item:active {
    background: rgba(140, 65, 77, 0.08);
  }
  
  .mobile-bottom-nav .nav-item:active i {
    transform: scale(0.95);
  }
}

/* 高对比度模式 */
@media (prefers-contrast: high) {
  .mobile-bottom-nav {
    border-top: 2px solid var(--color-border);
  }
  
  .mobile-bottom-nav .nav-item.active::before {
    height: 4px;
  }
}

/* 减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
  .mobile-bottom-nav .nav-item,
  .mobile-bottom-nav .nav-item i {
    transition: none;
  }
}

/* ========================================
   底部导航响应式处理
   PC端隐藏.fixed-bottom，移动端显示
   ======================================== */

/* PC端隐藏底部导航 */
@media (min-width: 768px) {
  .fixed-bottom.bg-white.border-top {
    display: none !important;
  }
  
  .tem_footer {
    padding-bottom: var(--space-8);
  }
}

/* 移动端显示底部导航 */
@media (max-width: 767.98px) {
  .fixed-bottom.bg-white.border-top {
    display: block !important;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    background: var(--color-bg-primary);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
    padding-bottom: env(safe-area-inset-bottom);
  }
  
  .fixed-bottom.bg-white.border-top .container {
    max-width: 100%;
    padding: 0 var(--space-2);
  }
  
  .fixed-bottom.bg-white.border-top .row {
    display: flex;
    justify-content: space-around;
    align-items: center;
    height: 56px;
    margin: 0;
  }
  
  .fixed-bottom.bg-white.border-top .col {
    flex: 1;
    max-width: none;
    padding: var(--space-1);
  }
  
  .fixed-bottom.bg-white.border-top a {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--color-text-tertiary);
    text-decoration: none;
    font-size: 10px;
    font-weight: var(--font-weight-medium);
    transition: color var(--transition-fast);
    padding: var(--space-1);
    min-height: 44px;
  }
  
  .fixed-bottom.bg-white.border-top a:hover,
  .fixed-bottom.bg-white.border-top a:active {
    color: var(--color-primary);
  }
  
  .fixed-bottom.bg-white.border-top i {
    font-size: 20px;
    margin-bottom: 2px;
  }
  
  .fixed-bottom.bg-white.border-top div {
    white-space: nowrap;
  }
  
  /* 页脚增加底部间距，避免被底部导航遮挡 */
  .tem_footer {
    padding-bottom: calc(var(--space-8) + 60px);
  }
  
  /* 页面内容增加底部间距 */
  .page {
    padding-bottom: 60px;
  }
}

/* 小屏手机优化 */
@media (max-width: 575.98px) {
  .fixed-bottom.bg-white.border-top .row {
    height: 52px;
  }
  
  .fixed-bottom.bg-white.border-top a {
    font-size: 9px;
  }
  
  .fixed-bottom.bg-white.border-top i {
    font-size: 18px;
  }
  
  .tem_footer {
    padding-bottom: calc(var(--space-6) + 52px);
  }
  
  .page {
    padding-bottom: 52px;
  }
}

/* 横屏模式隐藏底部导航 */
@media (max-width: 767.98px) and (orientation: landscape) {
  .fixed-bottom.bg-white.border-top {
    display: none !important;
  }
  
  .tem_footer {
    padding-bottom: var(--space-8);
  }
  
  .page {
    padding-bottom: 0;
  }
}

/* iPhone X及以上安全区域适配 */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
  @media (max-width: 767.98px) {
    .fixed-bottom.bg-white.border-top {
      padding-bottom: env(safe-area-inset-bottom);
    }
    
    .tem_footer {
      padding-bottom: calc(var(--space-8) + 60px + env(safe-area-inset-bottom));
    }
    
    .page {
      padding-bottom: calc(60px + env(safe-area-inset-bottom));
    }
  }
  
  @media (max-width: 575.98px) {
    .tem_footer {
      padding-bottom: calc(var(--space-6) + 52px + env(safe-area-inset-bottom));
    }
    
    .page {
      padding-bottom: calc(52px + env(safe-area-inset-bottom));
    }
  }
}

/* ========================================
   加载状态美化 - Loading State Enhancement
   ======================================== */

/* 品牌色旋转加载器 */
.loader-spinner {
  display: inline-block;
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-bg-secondary);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: loaderSpin 0.8s linear infinite;
}

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

/* 加载器尺寸变体 */
.loader-spinner.sm {
  width: 24px;
  height: 24px;
  border-width: 2px;
}

.loader-spinner.lg {
  width: 56px;
  height: 56px;
  border-width: 4px;
}

.loader-spinner.xl {
  width: 72px;
  height: 72px;
  border-width: 5px;
}

/* 双色加载器 */
.loader-dual {
  position: relative;
  width: 40px;
  height: 40px;
}

.loader-dual::before,
.loader-dual::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 3px solid transparent;
}

.loader-dual::before {
  border-top-color: var(--color-primary);
  animation: loaderDualSpin 1s linear infinite;
}

.loader-dual::after {
  border-bottom-color: var(--color-accent);
  animation: loaderDualSpin 1s linear infinite reverse;
}

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

/* 脉冲点加载器 */
.loader-dots {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.loader-dots span {
  width: 10px;
  height: 10px;
  background: var(--color-primary);
  border-radius: 50%;
  animation: loaderDotPulse 1.4s ease-in-out infinite;
}

.loader-dots span:nth-child(1) { animation-delay: 0s; }
.loader-dots span:nth-child(2) { animation-delay: 0.2s; }
.loader-dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes loaderDotPulse {
  0%, 80%, 100% {
    transform: scale(0.6);
    opacity: 0.5;
  }
  40% {
    transform: scale(1);
    opacity: 1;
  }
}

/* 波浪加载器 */
.loader-wave {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 4px;
  height: 32px;
}

.loader-wave span {
  width: 4px;
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  animation: loaderWave 1s ease-in-out infinite;
}

.loader-wave span:nth-child(1) { animation-delay: 0s; }
.loader-wave span:nth-child(2) { animation-delay: 0.1s; }
.loader-wave span:nth-child(3) { animation-delay: 0.2s; }
.loader-wave span:nth-child(4) { animation-delay: 0.3s; }
.loader-wave span:nth-child(5) { animation-delay: 0.4s; }

@keyframes loaderWave {
  0%, 100% {
    transform: scaleY(0.4);
  }
  50% {
    transform: scaleY(1);
  }
}

/* 圆环加载器 */
.loader-ring {
  position: relative;
  width: 48px;
  height: 48px;
}

.loader-ring::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border: 3px solid transparent;
  border-top-color: var(--color-primary);
  border-right-color: var(--color-primary-light);
  border-radius: 50%;
  animation: loaderRing 1s linear infinite;
}

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

/* 全屏加载遮罩 */
.page-loader {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.98);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 99999;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.page-loader.show {
  opacity: 1;
  visibility: visible;
}

.page-loader .loader-content {
  text-align: center;
}

.page-loader .loader-icon {
  margin-bottom: var(--space-6);
}

.page-loader .loader-text {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
}

.page-loader .loader-progress {
  width: 200px;
  height: 4px;
  background: var(--color-bg-secondary);
  border-radius: var(--radius-full);
  margin-top: var(--space-4);
  overflow: hidden;
}

.page-loader .loader-progress-bar {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  animation: loaderProgress 2s ease-in-out infinite;
}

@keyframes loaderProgress {
  0% { width: 0; margin-left: 0; }
  50% { width: 60%; margin-left: 20%; }
  100% { width: 0; margin-left: 100%; }
}

/* 骨架屏增强样式 */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-bg-secondary) 25%,
    var(--color-bg-tertiary) 50%,
    var(--color-bg-secondary) 75%
  );
  background-size: 200% 100%;
  animation: skeletonShimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
}

@keyframes skeletonShimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* 骨架屏 - 产品卡片 */
.skeleton-product-card {
  background: var(--color-bg-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.skeleton-product-card .skeleton-image {
  width: 100%;
  padding-top: 100%;
  background: linear-gradient(
    90deg,
    #f0f0f0 25%,
    #e8e8e8 50%,
    #f0f0f0 75%
  );
  background-size: 200% 100%;
  animation: skeletonShimmer 1.5s ease-in-out infinite;
}

.skeleton-product-card .skeleton-content {
  padding: var(--space-4);
}

.skeleton-product-card .skeleton-title {
  height: 20px;
  margin-bottom: var(--space-2);
  width: 80%;
}

.skeleton-product-card .skeleton-text {
  height: 14px;
  margin-bottom: var(--space-1);
}

.skeleton-product-card .skeleton-text:last-child {
  width: 60%;
  margin-bottom: 0;
}

.skeleton-product-card .skeleton-price {
  height: 24px;
  width: 40%;
  margin-top: var(--space-3);
}

/* 骨架屏 - 列表项 */
.skeleton-list-item {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-3);
  background: var(--color-bg-primary);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-2);
}

.skeleton-list-item .skeleton-avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

.skeleton-list-item .skeleton-content {
  flex: 1;
}

.skeleton-list-item .skeleton-title {
  height: 16px;
  width: 70%;
  margin-bottom: var(--space-2);
}

.skeleton-list-item .skeleton-text {
  height: 12px;
  width: 90%;
}

/* 骨架屏 - 文章 */
.skeleton-article {
  background: var(--color-bg-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.skeleton-article .skeleton-header {
  padding: var(--space-4);
}

.skeleton-article .skeleton-title {
  height: 28px;
  width: 60%;
  margin-bottom: var(--space-3);
}

.skeleton-article .skeleton-meta {
  height: 14px;
  width: 40%;
}

.skeleton-article .skeleton-image {
  width: 100%;
  padding-top: 50%;
}

.skeleton-article .skeleton-body {
  padding: var(--space-4);
}

.skeleton-article .skeleton-paragraph {
  height: 14px;
  margin-bottom: var(--space-2);
}

.skeleton-article .skeleton-paragraph:last-child {
  width: 70%;
}

/* 按钮加载状态增强 */
.btn-loading {
  position: relative;
  color: transparent !important;
  pointer-events: none;
}

.btn-loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: loaderSpin 0.8s linear infinite;
}

/* 内联加载指示器 */
.inline-loader {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.inline-loader .loader-spinner {
  width: 16px;
  height: 16px;
  border-width: 2px;
}

/* 加载状态覆盖层 */
.loading-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  border-radius: inherit;
}

/* 懒加载占位符 */
.lazy-placeholder {
  background: var(--color-bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100px;
}

.lazy-placeholder img {
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.lazy-placeholder img.loaded {
  opacity: 1;
}

/* 移动端加载状态优化 */
@media (max-width: 767.98px) {
  .page-loader .loader-progress {
    width: 160px;
  }
  
  .skeleton-product-card .skeleton-content {
    padding: var(--space-3);
  }
  
  .skeleton-list-item {
    padding: var(--space-2);
  }
  
  .skeleton-list-item .skeleton-avatar {
    width: 40px;
    height: 40px;
  }
}

/* 减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
  .loader-spinner,
  .loader-dual::before,
  .loader-dual::after,
  .loader-dots span,
  .loader-wave span,
  .loader-ring::before,
  .skeleton,
  .skeleton-product-card .skeleton-image,
  .page-loader .loader-progress-bar,
  .btn-loading::after {
    animation: none;
  }
  
  .skeleton,
  .skeleton-product-card .skeleton-image {
    background: var(--color-bg-secondary);
  }
}

/* 高对比度模式 */
@media (prefers-contrast: high) {
  .loader-spinner {
    border-color: var(--color-border);
    border-top-color: var(--color-primary);
  }
  
  .loader-dots span {
    background: var(--color-primary);
  }
}

/* ========================================
   移动端适配精细化 - Mobile Fine-tuning
   ======================================== */

/* ========================================
   大屏手机优化 (414px - 767px)
   ======================================== */
@media (min-width: 414px) and (max-width: 767.98px) {
  /* 产品网格 */
  .product-grid {
    gap: var(--space-4);
  }
  
  /* 产品卡片 */
  .product-card .product-info {
    padding: var(--space-4);
  }
  
  .product-card .product-title {
    font-size: var(--font-size-base);
  }
  
  .product-card .product-price .price {
    font-size: var(--font-size-lg);
  }
  
  /* 按钮尺寸 */
  .btn,
  .btn-view-cart,
  .btn-checkout {
    min-height: 46px;
    padding: var(--space-3) var(--space-5);
  }
  
  /* 表单输入 */
  input[type="text"],
  input[type="email"],
  input[type="password"],
  select {
    min-height: 46px;
  }
  
  /* Banner */
  .tem_banner {
    max-height: 380px;
  }
  
  .banner-content .banner-title {
    font-size: var(--font-size-2xl);
  }
}

/* ========================================
   标准手机优化 (375px - 413px)
   ======================================== */
@media (min-width: 375px) and (max-width: 413.98px) {
  /* 容器内边距 */
  .container {
    padding: 0 var(--space-3);
  }
  
  /* 产品网格 */
  .product-grid {
    gap: var(--space-3);
  }
  
  /* 产品卡片 */
  .product-card .product-info {
    padding: var(--space-3);
  }
  
  .product-card .product-title {
    font-size: var(--font-size-sm);
    min-height: 36px;
  }
  
  .product-card .product-price .price {
    font-size: var(--font-size-md);
  }
  
  /* 按钮尺寸 */
  .btn,
  .btn-view-cart,
  .btn-checkout {
    min-height: 44px;
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-size-sm);
  }
  
  /* Banner */
  .tem_banner {
    max-height: 320px;
  }
  
  .banner-content .banner-title {
    font-size: var(--font-size-xl);
  }
  
  .banner-content .banner-subtitle {
    font-size: var(--font-size-sm);
  }
  
  /* 页脚 */
  .tem_footer .container {
    padding: var(--space-6) var(--space-3);
  }
}

/* ========================================
   小屏手机优化 (< 375px)
   ======================================== */
@media (max-width: 374.98px) {
  /* 基础布局 */
  html {
    font-size: 13px;
  }
  
  body {
    font-size: var(--font-size-sm);
  }
  
  /* 容器内边距 */
  .container {
    padding: 0 var(--space-2);
  }
  
  /* 产品网格单列 */
  .product-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
  
  /* 产品卡片 */
  .product-card .product-info {
    padding: var(--space-2);
  }
  
  .product-card .product-title {
    font-size: var(--font-size-xs);
    min-height: 32px;
    margin-bottom: var(--space-2);
  }
  
  .product-card .product-price .price {
    font-size: var(--font-size-base);
  }
  
  .product-card .product-wishlist {
    width: 28px;
    height: 28px;
  }
  
  .product-card .product-wishlist i {
    font-size: 14px;
  }
  
  /* 按钮尺寸 */
  .btn,
  .btn-view-cart,
  .btn-checkout {
    min-height: 42px;
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-xs);
  }
  
  /* 表单输入 */
  input[type="text"],
  input[type="email"],
  input[type="password"],
  select {
    min-height: 42px;
    padding: var(--space-2) var(--space-3);
    font-size: 14px;
  }
  
  /* Banner */
  .tem_banner {
    max-height: 260px;
  }
  
  .banner-content {
    left: var(--space-2);
    right: var(--space-2);
  }
  
  .banner-content .banner-title {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-2);
  }
  
  .banner-content .banner-subtitle {
    font-size: var(--font-size-xs);
    margin-bottom: var(--space-3);
    -webkit-line-clamp: 1;
  }
  
  .banner-content .banner-btn {
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-xs);
  }
  
  /* 导航栏 */
  .tem_inner.tem_head .container {
    padding: var(--space-2);
  }
  
  .met-logo img {
    height: 32px;
  }
  
  .cart-wrapper,
  .account-toggle,
  .search-toggle {
    width: 32px;
    height: 32px;
  }
  
  .cart-count {
    min-width: 14px;
    height: 14px;
    font-size: 9px;
  }
  
  /* 页脚 */
  .tem_footer .container {
    padding: var(--space-4) var(--space-2);
  }
  
  .footer-brand .logo img {
    height: 28px;
  }
  
  .footer-social a {
    width: 32px;
    height: 32px;
    font-size: 14px;
  }
  
  /* 底部导航 */
  .mobile-bottom-nav .nav-items {
    height: 50px;
  }
  
  .mobile-bottom-nav .nav-item i {
    font-size: 18px;
  }
  
  .mobile-bottom-nav .nav-item span {
    font-size: 8px;
  }
  
  body {
    padding-bottom: 50px;
  }
}

/* ========================================
   横屏模式优化
   ======================================== */
@media (max-width: 767.98px) and (orientation: landscape) {
  /* 隐藏底部导航 */
  .mobile-bottom-nav {
    display: none;
  }
  
  body {
    padding-bottom: 0;
  }
  
  /* Banner高度限制 */
  .tem_banner {
    max-height: 50vh;
  }
  
  /* 产品网格横向滚动 */
  .product-grid {
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    gap: var(--space-3);
    padding-bottom: var(--space-2);
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  
  .product-grid::-webkit-scrollbar {
    display: none;
  }
  
  .product-grid .product-card {
    flex: 0 0 200px;
    min-width: 200px;
  }
  
  /* 导航栏紧凑 */
  .tem_inner.tem_head .container {
    padding: var(--space-1) var(--space-3);
  }
  
  .met-logo img {
    height: 36px;
  }
}

/* ========================================
   iPhone X及以上安全区域适配
   ======================================== */
@supports (padding: env(safe-area-inset-top)) {
  /* 顶部安全区域 */
  .tem_inner.tem_head {
    padding-top: env(safe-area-inset-top);
  }
  
  /* 底部安全区域 */
  .mobile-bottom-nav {
    padding-bottom: env(safe-area-inset-bottom);
  }
  
  /* 页脚安全区域 */
  .tem_footer {
    padding-bottom: env(safe-area-inset-bottom);
  }
  
  /* 返回顶部按钮 */
  @media (max-width: 767.98px) {
    .back-to-top {
      bottom: calc(var(--space-4) + 60px + env(safe-area-inset-bottom));
    }
  }
}

/* ========================================
   高分辨率屏幕优化 (Retina)
   ======================================== */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  /* 边框更细 */
  .product-card,
  .form-input-enhanced,
  input[type="text"],
  select {
    border-width: 0.5px;
  }
  
  /* 图标更清晰 */
  .footer-social a i,
  .mobile-bottom-nav .nav-item i {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
}

/* ========================================
   折叠屏设备优化
   ======================================== */
@media (min-width: 768px) and (max-width: 895.98px) and (min-height: 600px) {
  /* 产品网格3列 */
  .product-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  /* Banner高度 */
  .tem_banner {
    max-height: 400px;
  }
  
  /* 导航栏 */
  #menu .navbar-nav > li > a {
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-sm);
  }
}

/* ========================================
   平板竖屏优化
   ======================================== */
@media (min-width: 768px) and (max-width: 991.98px) and (orientation: portrait) {
  /* 产品网格3列 */
  .product-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  /* Banner */
  .tem_banner {
    max-height: 450px;
  }
  
  .banner-content .banner-title {
    font-size: var(--font-size-3xl);
  }
  
  /* 页脚网格 */
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-brand {
    grid-column: 1 / -1;
  }
}

/* ========================================
   触摸设备通用优化
   ======================================== */
@media (hover: none) and (pointer: coarse) {
  /* 禁用hover效果 */
  .btn:hover,
  .product-card:hover,
  .footer-links li a:hover {
    transform: none;
  }
  
  /* 增大点击区域 */
  a, button {
    min-height: 44px;
    min-width: 44px;
  }
  
  /* 禁用hover背景 */
  .product-card:hover {
    background: var(--color-bg-primary);
  }
  
  /* 活跃状态反馈 */
  .btn:active,
  .product-card:active {
    opacity: 0.9;
  }
  
  /* 滚动优化 */
  .product-grid,
  .cart-content {
    -webkit-overflow-scrolling: touch;
  }
}

/* ========================================
   弱网环境优化
   ======================================== */
@media (prefers-reduced-data: reduce) {
  /* 禁用背景图片 */
  .tem_banner .flexslider .slides li::before,
  .tem_banner .flexslider .slides li::after {
    display: none;
  }
  
  /* 简化动画 */
  .loader-spinner,
  .skeleton {
    animation: none;
  }
  
  .skeleton {
    background: var(--color-bg-secondary);
  }
}

/* ========================================
   深色模式支持
   ======================================== */
@media (prefers-color-scheme: dark) {
  /* 移动端底部导航 */
  .mobile-bottom-nav {
    background: var(--color-bg-dark);
    border-top: 1px solid var(--color-border);
  }
  
  .mobile-bottom-nav .nav-item {
    color: var(--color-text-tertiary);
  }
  
  .mobile-bottom-nav .nav-item.active {
    color: var(--color-primary-light);
  }
  
  /* 页面加载器 */
  .page-loader {
    background: rgba(29, 33, 41, 0.98);
  }
  
  .page-loader .loader-text {
    color: var(--color-text-secondary);
  }
  
  /* 骨架屏 */
  .skeleton,
  .skeleton-product-card .skeleton-image {
    background: linear-gradient(
      90deg,
      #2a2e35 25%,
      #363b44 50%,
      #2a2e35 75%
    );
    background-size: 200% 100%;
  }
}

/* ========================================
   9. 微交互动效
   ======================================== */

/* 涟漪效果 */
.ripple {
  position: relative;
  overflow: hidden;
}

.ripple::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s ease, height 0.6s ease;
}

.ripple:active::after {
  width: 200%;
  height: 200%;
}

/* 悬浮效果 */
.hover-lift {
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

/* 发光效果 */
.glow-primary {
  box-shadow: 0 0 0 0 rgba(140, 65, 77, 0.4);
  animation: glow-primary 2s ease-in-out infinite;
}

@keyframes glow-primary {
  0%, 100% { box-shadow: 0 0 0 0 rgba(140, 65, 77, 0.4); }
  50% { box-shadow: 0 0 20px 5px rgba(140, 65, 77, 0.2); }
}

/* 脉冲效果 */
.pulse {
  animation: pulse 2s ease-in-out infinite;
}

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

/* 淡入动画 */
.fade-in-up {
  animation: fadeInUp var(--duration-slow) var(--ease-out);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 滑入动画 */
.slide-in-right {
  animation: slideInRight var(--duration-slow) var(--ease-out);
}

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

/* ========================================
   10. 响应式断点精细化
   ======================================== */

/* 超大屏幕 (>1400px) */
@media (min-width: 1400px) {
  .container-enhanced {
    max-width: var(--container-2xl);
    padding: 0 var(--space-8);
  }
}

/* 大屏幕 (1200px - 1399px) */
@media (min-width: 1200px) and (max-width: 1399.98px) {
  .container-enhanced {
    max-width: var(--container-xl);
    padding: 0 var(--space-6);
  }
}

/* 中等屏幕 (992px - 1199px) */
@media (min-width: 992px) and (max-width: 1199.98px) {
  .container-enhanced {
    max-width: var(--container-lg);
    padding: 0 var(--space-5);
  }
  
  .text-display { font-size: var(--font-size-4xl); }
  .text-title-1 { font-size: var(--font-size-3xl); }
}

/* 平板 (768px - 991px) */
@media (min-width: 768px) and (max-width: 991.98px) {
  .container-enhanced {
    max-width: var(--container-md);
    padding: 0 var(--space-4);
  }
  
  .text-display { font-size: var(--font-size-3xl); }
  .text-title-1 { font-size: var(--font-size-2xl); }
  .text-title-2 { font-size: var(--font-size-xl); }
}

/* 大手机 (576px - 767px) */
@media (min-width: 576px) and (max-width: 767.98px) {
  .container-enhanced {
    padding: 0 var(--space-4);
  }
  
  .text-display { font-size: var(--font-size-2xl); }
  .text-title-1 { font-size: var(--font-size-xl); }
  .text-title-2 { font-size: var(--font-size-lg); }
  
  .card-enhanced .card-body {
    padding: var(--space-4);
  }
}

/* 小手机 (<576px) */
@media (max-width: 575.98px) {
  .container-enhanced {
    padding: 0 var(--space-3);
  }
  
  .text-display { font-size: var(--font-size-xl); }
  .text-title-1 { font-size: var(--font-size-lg); }
  .text-title-2 { font-size: var(--font-size-md); }
  
  .card-enhanced {
    border-radius: var(--radius-md);
  }
  
  .card-enhanced .card-body {
    padding: var(--space-3);
  }
  
  .btn-enhanced {
    padding: var(--space-3) var(--space-4);
    width: 100%;
  }
}

/* ========================================
   11. 暗色模式支持
   ======================================== */

@media (prefers-color-scheme: dark) {
  :root {
    --color-text-primary: #f7f8fa;
    --color-text-secondary: #c9cdd4;
    --color-text-tertiary: #86909c;
    
    --color-bg-primary: #1d2129;
    --color-bg-secondary: #0d1117;
    --color-bg-tertiary: #161b22;
    
    --color-border: #30363d;
    --color-border-light: #21262d;
    
    --color-shadow: rgba(0, 0, 0, 0.3);
  }
}

/* ========================================
   12. 无障碍优化
   ======================================== */

/* 焦点可见性 */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* 跳过链接 */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  padding: var(--space-3) var(--space-4);
  background: var(--color-primary);
  color: var(--color-text-white);
  border-radius: var(--radius-md);
  z-index: var(--z-loading);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-4);
}

/* 减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* 高对比度模式 */
@media (prefers-contrast: high) {
  :root {
    --color-primary: #a65560;
    --color-border: #4e5969;
  }
}