/* 小牛商城2025年移动端设计系统 */

/* 现代移动端设计变量 - 仅在移动端生效 */
:root {
  /* 安全区域变量 */
  --safe-area-inset-top: env(safe-area-inset-top, 0px);
  --safe-area-inset-bottom: env(safe-area-inset-bottom, 0);
  --mobile-header-height: 50px;
  --mobile-footer-height: 50px;
  
  /* 2025电商流行色彩 */
  --m-primary: #2977f3;
  --m-primary-light: #4f7aff;
  --m-primary-dark: #1642c2;
  --m-accent: #ff5a5f;
  --m-accent-light: #ff89a6;
  --m-accent-dark: #d93d64;
  
  /* 中性色 */
  --m-background: #f8f9fa;
  --m-surface: #ffffff;
  --m-surface-variant: #f1f2f4;
  --m-text-primary: #1e2022;
  --m-text-secondary: #5e6e82;
  --m-text-tertiary: #9ea3b8;
  --m-border: #e5e7f0;
  
  /* 系统状态色 */
  --m-success: #28c76f;
  --m-warning: #ff9f43;
  --m-error: #ea5455;
  --m-info: #5b9ce9;
  
  /* 现代UI圆角 */
  --m-radius-sm: 4px;
  --m-radius-md: 8px;
  --m-radius-lg: 12px;
  --m-radius-xl: 24px;
  --m-radius-full: 9999px;
  
  /* 阴影效果 */
  --m-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --m-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --m-shadow-lg: 0 12px 24px rgba(0, 0, 0, 0.06), 0 4px 6px rgba(0, 0, 0, 0.04);
  --m-shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.08), 0 8px 16px rgba(0, 0, 0, 0.05);
  
  /* 间距 */
  --m-spacing-unit: 4px;
  --m-spacing-xs: 4px;
  --m-spacing-sm: 8px;
  --m-spacing-md: 16px;
  --m-spacing-lg: 24px;
  --m-spacing-xl: 32px;
  --m-spacing-2xl: calc(var(--m-spacing-unit) * 12);
  
  /* 过渡 */
  --m-transition-fast: 150ms ease;
  --m-transition-normal: 250ms ease;
  --m-transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* 媒体查询 - 仅在移动设备上应用这些样式 */
@media (max-width: 768px) {
  /* 移动端滚动行为 */
  html {
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    overflow-x: hidden;
  }
  
  body {
    background-color: var(--m-background);
    color: var(--m-text-primary);
    font-size: 15px;
    line-height: 1.5;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    -webkit-tap-highlight-color: transparent;
  }
  
  /* 设置轮播图在移动端的高度为320px */
  .banner-section {
    height: 320px !important;
  }
  
  .banner-container {
    height: 320px !important;
  }
  
  /* ======== 移动端基础结构 ======== */
  
  /* 主体内容容器 */
  .main-content {
    padding-bottom: calc(var(--mobile-footer-height) + var(--safe-area-inset-bottom)) !important;
    padding-top: 0 !important;
  }
  
  /* 顶部导航 */
  .header {
    position: sticky !important;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: var(--m-surface);
    box-shadow: var(--m-shadow-sm);
    transition: box-shadow var(--m-transition-normal), transform var(--m-transition-normal);
    height: var(--mobile-header-height);
    display: flex;
    align-items: center;
    padding: 0 !important;
  }
  
  /* 移动端分类导航增强 */
  .mobile-category-nav {
    display: flex !important;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE and Edge */
    white-space: nowrap;
    background-color: var(--m-surface);
    border-bottom: 1px solid var(--m-border);
    padding: var(--m-spacing-sm) var(--m-spacing-md);
    margin-bottom: var(--m-spacing-md);
    position: sticky;
    top: var(--mobile-header-height);
    z-index: 99;
  }
  
  .mobile-category-nav::-webkit-scrollbar {
    display: none;
  }
  
  .mobile-category-nav a {
    display: inline-block;
    padding: var(--m-spacing-sm) var(--m-spacing-md);
    margin-right: var(--m-spacing-sm);
    color: var(--m-text-secondary);
    border-radius: var(--m-radius-full);
    font-size: 14px;
    transition: all var(--m-transition-fast);
    white-space: nowrap;
  }
  
  .mobile-category-nav a.active {
    background-color: var(--m-primary);
    color: white;
    box-shadow: var(--m-shadow-sm);
  }
  
  .mobile-category-nav a:last-child {
    margin-right: 0;
  }
  
  .header.header-scrolled {
    box-shadow: var(--m-shadow-md) !important;
  }
  
  /* 隐藏页脚在移动端 */
  .footer {
    display: none !important;
  }
  
  /* 滚动隐藏头部 */
  .header.scrolled-down {
    transform: translateY(-100%);
  }
  
  .header.scrolled-up {
    transform: translateY(0);
  }
  
  /* 移动端容器 */
  .layui-container {
    padding: 0 var(--m-spacing-md) !important;
    width: 100% !important;
  }
  
  /* ======== 移动端导航与交互 ======== */
  
  /* 现代底部导航栏 */
  .mobile-bottom-nav {
    display: flex !important;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: calc(var(--mobile-footer-height) + var(--safe-area-inset-bottom));
    background-color: var(--m-surface);
    box-shadow: var(--m-shadow-lg);
    z-index: 999;
    padding-bottom: var(--safe-area-inset-bottom);
    border-top-left-radius: var(--m-radius-lg);
    border-top-right-radius: var(--m-radius-lg);
  }
  
  .mobile-bottom-nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: var(--m-text-secondary);
    transition: all var(--m-transition-fast);
    position: relative;
    padding: var(--m-spacing-xs) 0;
    height: var(--mobile-footer-height);
  }
  
  .mobile-bottom-nav-item.active {
    color: var(--m-primary);
  }
  
  .mobile-bottom-nav-item::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background-color: var(--m-primary);
    border-radius: var(--m-radius-full);
    transition: width var(--m-transition-normal);
  }
  
  .mobile-bottom-nav-item.active::after {
    width: 20px;
  }
  
  .mobile-bottom-nav-item i {
    font-size: 22px;
    margin-bottom: 4px;
    transition: transform var(--m-transition-fast);
  }
  
  .mobile-bottom-nav-item.active i {
    transform: translateY(-2px);
  }
  
  .mobile-bottom-nav-item span {
    font-size: 11px;
    line-height: 1;
    transition: transform var(--m-transition-fast);
  }
  
  .mobile-bottom-nav-item.active span {
    transform: translateY(-1px);
    font-weight: 500;
  }
  
  .mobile-bottom-nav-badge {
    position: absolute;
    top: 6px;
    right: 50%;
    transform: translateX(12px);
    min-width: 16px;
    height: 16px;
    line-height: 16px;
    text-align: center;
    background-color: var(--m-accent);
    color: white;
    border-radius: 8px;
    font-size: 10px;
    padding: 0 4px;
    font-weight: 600;
    box-shadow: 0 2px 4px rgba(255, 92, 133, 0.3);
  }
  
  /* ======== 移动端组件样式 ======== */
  
  /* 卡片容器 */
  .m-card {
    background-color: var(--m-surface);
    border-radius: var(--m-radius-md);
    box-shadow: var(--m-shadow-sm);
    padding: var(--m-spacing-md);
    margin-bottom: var(--m-spacing-lg);
    overflow: hidden;
    transition: box-shadow var(--m-transition-normal), transform var(--m-transition-normal);
  }
  
  .m-card:active {
    transform: scale(0.99);
    box-shadow: var(--m-shadow-md);
  }
  
  /* 标题样式 */
  .m-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: var(--m-spacing-md);
    color: var(--m-text-primary);
  }
  
  .m-subtitle {
    font-size: 16px;
    font-weight: 500;
    margin-bottom: var(--m-spacing-sm);
    color: var(--m-text-secondary);
  }
  
  /* 按钮样式 */
  .m-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--m-spacing-sm) var(--m-spacing-lg);
    border-radius: var(--m-radius-md);
    font-weight: 500;
    font-size: 15px;
    transition: all var(--m-transition-normal);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    border: none;
    outline: none;
    background-color: var(--m-primary);
    color: white;
  }
  
  .m-btn::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%) scale(0);
    opacity: 0;
    transition: transform 0.4s ease, opacity 0.4s ease;
  }
  
  .m-btn:active::after {
    transform: translate(-50%, -50%) scale(3);
    opacity: 0;
    transition: 0s;
  }
  
  .m-btn-primary {
    background-color: var(--m-primary);
    color: white;
    box-shadow: 0 4px 8px rgba(39, 86, 225, 0.25);
  }
  
  .m-btn-accent {
    background-color: var(--m-accent);
    color: white;
    box-shadow: 0 4px 8px rgba(255, 92, 133, 0.25);
  }
  
  .m-btn-outline {
    background-color: transparent;
    border: 1.5px solid var(--m-primary);
    color: var(--m-primary);
    box-shadow: none;
  }
  
  .m-btn-sm {
    padding: var(--m-spacing-xs) var(--m-spacing-md);
    font-size: 14px;
  }
  
  .m-btn-lg {
    padding: var(--m-spacing-md) var(--m-spacing-xl);
    font-size: 16px;
  }
  
  .m-btn-block {
    display: flex;
    width: 100%;
  }
  
  /* 触摸反馈效果 */
  .m-touch-active {
    opacity: 0.8;
    transform: scale(0.98);
  }
  
  /* 加载指示器 */
  .m-spinner {
    width: 30px;
    height: 30px;
    border: 3px solid rgba(39, 86, 225, 0.2);
    border-top-color: var(--m-primary);
    border-radius: 50%;
    animation: m-spin 0.8s linear infinite;
  }
  
  @keyframes m-spin {
    to { transform: rotate(360deg); }
  }
  
  /* ======== 结算页面样式 ======== */
  .checkout-container {
    padding: 12px 0 !important;
  }
  
  .checkout-header {
    margin-bottom: 16px;
    border-bottom: 1px solid var(--m-border);
    padding-bottom: 12px;
  }
  
  .checkout-header h2 {
    font-size: 20px;
    font-weight: 600;
    color: var(--m-text-primary);
    margin: 0;
  }
  
  .layui-card {
    margin-bottom: 16px;
    box-shadow: var(--m-shadow-sm);
    border-radius: var(--m-radius-md);
    overflow: hidden;
    background-color: var(--m-surface);
    border: none;
  }
  
  .layui-card-header {
    font-size: 16px;
    font-weight: 600;
    color: var(--m-text-primary);
    height: auto;
    line-height: 1.5;
    padding: 14px 16px;
    border-bottom: 1px solid var(--m-border);
    background-color: var(--m-surface);
  }
  
  .layui-card-body {
    padding: 16px;
  }
  
  /* 地址列表样式 */
  .address-list {
    margin-bottom: 12px;
  }
  
  .address-item {
    padding: 10px 12px;
    margin-bottom: 12px;
    border: 1px solid var(--m-border);
    border-radius: var(--m-radius-md);
    transition: all var(--m-transition-normal);
    background-color: var(--m-surface);
  }
  
  .address-item:last-child {
    margin-bottom: 0;
  }
  
  .address-item:hover,
  .address-item:active {
    background-color: var(--m-surface-variant);
  }
  
  .address-item.selected {
    border-color: var(--m-primary);
    background-color: rgba(39, 86, 225, 0.05);
  }
  
  .address-item.pulse-effect {
    animation: pulse 0.5s ease;
  }
  
  @keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(0.98); }
    100% { transform: scale(1); }
  }
  
  .address-action {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
  }
  
  .empty-address {
    text-align: center;
    padding: 30px 0;
  }
  
  .empty-address p {
    margin-bottom: 16px;
    color: var(--m-text-secondary);
  }
  
  /* 商品清单样式 */
  .checkout-container .cart-table {
    margin: 0;
  }
  
  .checkout-container .cart-table thead {
    display: none;
  }
  
  .checkout-container .cart-table tbody tr {
    display: flex;
    flex-wrap: wrap;
    padding: 12px 0;
    border-bottom: 1px solid var(--m-border);
  }
  
  .checkout-container .cart-table tbody tr:last-child {
    border-bottom: none;
  }
  
  .checkout-container .cart-table td {
    border: none;
    padding: 4px 0;
  }
  
  .checkout-container .cart-table td:nth-child(1) {
    width: 70px;
    padding-right: 12px;
  }
  
  .checkout-container .cart-table td:nth-child(2) {
    width: calc(100% - 70px);
  }
  
  .checkout-container .cart-table td:nth-child(3),
  .checkout-container .cart-table td:nth-child(4) {
    width: 50%;
    color: var(--m-text-secondary);
    font-size: 14px;
  }
  
  .checkout-container .cart-table td:nth-child(5) {
    width: 100%;
    text-align: right;
    font-weight: 600;
    color: var(--m-accent);
  }
  
  .checkout-container .cart-product-img {
    width: 70px;
    height: 70px;
    object-fit: cover;
    border-radius: var(--m-radius-sm);
  }
  
  .checkout-container .cart-product-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--m-text-primary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.4;
  }
  
  /* 结算底部区域 */
  .checkout-footer {
    margin-top: 20px;
    padding: 16px;
    background-color: var(--m-surface);
    border-radius: var(--m-radius-md);
    box-shadow: var(--m-shadow-sm);
  }
  
  .total-info {
    margin-bottom: 16px;
  }
  
  .total-count {
    color: var(--m-text-secondary);
    margin-bottom: 6px;
    font-size: 14px;
  }
  
  .total-count span {
    color: var(--m-accent);
    font-weight: 600;
  }
  
  .total-price {
    font-size: 16px;
    color: var(--m-text-primary);
  }
  
  .total-price span {
    color: var(--m-accent);
    font-size: 22px;
    font-weight: 700;
  }
  
  .checkout-actions {
    display: flex;
    gap: 10px;
  }
  
  .checkout-actions .layui-btn {
    flex: 1;
    border-radius: var(--m-radius-md);
  }
  
  .shake-effect {
    animation: shake 0.6s ease-in-out;
  }
  
  @keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
  }
  
  /* ======== 订单详情页样式 ======== */
  .order-header {
    background-color: var(--m-surface);
    border-radius: var(--m-radius-md);
    padding: 16px;
    margin-bottom: 16px;
    box-shadow: var(--m-shadow-sm);
  }
  
  .order-status {
    display: flex;
    align-items: center;
    margin-bottom: 12px;
  }
  
  .order-status-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 12px;
    background-color: var(--m-primary);
    color: white;
    font-size: 18px;
  }
  
  .order-status-text {
    font-size: 16px;
    font-weight: 600;
    color: var(--m-text-primary);
  }
  
  .order-info {
    display: flex;
    flex-direction: column;
    gap: 8px;
  }
  
  .order-info-item {
    display: flex;
    font-size: 14px;
  }
  
  .order-info-label {
    color: var(--m-text-secondary);
    width: 100px;
    flex-shrink: 0;
  }
  
  .order-info-value {
    color: var(--m-text-primary);
    flex: 1;
  }
  
  .order-status-progress {
    display: flex;
    justify-content: space-between;
    margin: 24px 0;
    position: relative;
  }
  
  .order-status-progress::before {
    content: '';
    position: absolute;
    top: 16px;
    left: 20px;
    right: 20px;
    height: 2px;
    background-color: var(--m-border);
    z-index: 1;
  }
  
  .status-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 2;
    width: 25%;
  }
  
  .status-step-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: var(--m-surface-variant);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--m-text-tertiary);
    margin-bottom: 8px;
    border: 2px solid var(--m-border);
    transition: all var(--m-transition-normal);
  }
  
  .status-step.active .status-step-icon {
    background-color: var(--m-primary);
    color: white;
    border-color: var(--m-primary);
  }
  
  .status-step.active.animated-step .status-step-icon {
    animation: zoomIn 0.3s ease;
  }
  
  @keyframes zoomIn {
    0% { transform: scale(0.5); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
  }
  
  .status-step-text {
    font-size: 12px;
    color: var(--m-text-secondary);
    text-align: center;
    transition: all var(--m-transition-normal);
  }
  
  .status-step.active .status-step-text {
    color: var(--m-primary);
    font-weight: 500;
  }
  
  .order-actions {
    display: flex;
    gap: 10px;
    margin-top: 16px;
  }
  
  .order-actions .layui-btn {
    flex: 1;
    border-radius: var(--m-radius-md);
  }
  
  .order-actions .btn-scale:active {
    transform: scale(0.95);
  }
  
  /* ======== 登录注册页样式 ======== */
  .login-container,
  .register-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 30px 20px;
  }
  
  .login-header,
  .register-header {
    margin-bottom: 30px;
    text-align: center;
  }
  
  .login-header h2,
  .register-header h2 {
    font-size: 24px;
    font-weight: 600;
    color: var(--m-text-primary);
    margin-bottom: 10px;
  }
  
  .login-header p,
  .register-header p {
    color: var(--m-text-secondary);
    font-size: 14px;
  }
  
  .login-form,
  .register-form {
    width: 100%;
    max-width: 360px;
  }
  
  .login-form .layui-form-item,
  .register-form .layui-form-item {
    margin-bottom: 20px;
  }
  
  .login-form .layui-input,
  .register-form .layui-input {
    height: 48px;
    line-height: 48px;
    border-radius: var(--m-radius-md);
    border-color: var(--m-border);
    padding: 0 15px;
    font-size: 15px;
    transition: all var(--m-transition-normal);
  }
  
  .login-form .layui-input:focus,
  .register-form .layui-input:focus {
    border-color: var(--m-primary);
    box-shadow: 0 0 0 2px rgba(39, 86, 225, 0.1);
  }
  
  .login-form .layui-btn,
  .register-form .layui-btn {
    width: 100%;
    height: 48px;
    line-height: 48px;
    font-size: 16px;
    border-radius: var(--m-radius-md);
    background-color: var(--m-primary);
  }
  
  .login-options,
  .register-options {
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
    font-size: 14px;
    color: var(--m-text-secondary);
  }
  
  .login-options a,
  .register-options a {
    color: var(--m-primary);
    text-decoration: none;
  }
  
  .login-alt,
  .register-alt {
    margin-top: 30px;
    text-align: center;
    position: relative;
  }
  
  .login-alt::before,
  .register-alt::before {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    height: 1px;
    background-color: var(--m-border);
    z-index: 1;
  }
  
  .login-alt span,
  .register-alt span {
    position: relative;
    z-index: 2;
    background-color: var(--m-background);
    padding: 0 15px;
    font-size: 14px;
    color: var(--m-text-secondary);
  }
  
  .social-login {
    display: flex;
    justify-content: center;
    margin-top: 20px;
    gap: 20px;
  }
  
  .social-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    background-color: var(--m-surface);
    box-shadow: var(--m-shadow-sm);
    transition: all var(--m-transition-normal);
  }
  
  .social-icon:active {
    transform: scale(0.95);
    box-shadow: var(--m-shadow-md);
  }
  
  .social-icon.wechat {
    color: #07C160;
  }
  
  .social-icon.qq {
    color: #1DA1F2;
  }
}

/* ======== 页面过渡动画 ======== */
@media (max-width: 768px) {
  /* 页面切换效果 */
  .page-left-in {
    animation: pageLeftIn 0.3s forwards;
  }
  
  .page-left-out {
    animation: pageLeftOut 0.3s forwards;
  }
  
  .page-right-in {
    animation: pageRightIn 0.3s forwards;
  }
  
  .page-right-out {
    animation: pageRightOut 0.3s forwards;
  }
  
  @keyframes pageLeftIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
  }
  
  @keyframes pageLeftOut {
    from { transform: translateX(0); opacity: 1; }
    to { transform: translateX(-30%); opacity: 0; }
  }
  
  @keyframes pageRightIn {
    from { transform: translateX(-30%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
  }
  
  @keyframes pageRightOut {
    from { transform: translateX(0); opacity: 1; }
    to { transform: translateX(100%); opacity: 0; }
  }
  
  /* 其他动画效果 */
  .m-scale-effect {
    animation: scaleEffect 0.3s ease;
  }
  
  @keyframes scaleEffect {
    0% { transform: scale(1); }
    50% { transform: scale(0.9); }
    100% { transform: scale(1); }
  }
  
  .m-active {
    background-color: var(--m-primary-light) !important;
    color: white !important;
  }
  
  .active-btn {
    background-color: var(--m-surface-variant) !important;
  }
  
  /* 商品列表与卡片修复 */
  .products-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr) !important;
    grid-gap: var(--m-spacing-md) !important;
    padding: var(--m-spacing-md) !important;
    margin-bottom: var(--m-spacing-lg) !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  
  /* 空商品提示 */
  .empty-tip {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--m-spacing-xl);
    color: var(--m-text-secondary);
    font-size: 16px;
    background-color: var(--m-surface);
    border-radius: var(--m-radius-md);
    box-shadow: var(--m-shadow-sm);
  }
  
  .product-card {
    background-color: var(--m-surface);
    border-radius: var(--m-radius-md);
    overflow: hidden;
    box-shadow: var(--m-shadow-sm);
    transition: transform var(--m-transition-normal), box-shadow var(--m-transition-normal);
    display: flex;
    flex-direction: column;
    position: relative;
    margin: 0 !important;
    width: 100% !important;
    height: auto !important;
  }
  
  .product-card:active {
    transform: scale(0.98);
  }
  
  .product-image {
    position: relative;
    padding-top: 100%; /* 1:1 宽高比例 */
    overflow: hidden;
    border-top-left-radius: var(--m-radius-md);
    border-top-right-radius: var(--m-radius-md);
  }
  
  .product-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--m-transition-normal);
  }
  
  /* 商品徽标 */
  .product-badge {
    position: absolute;
    top: 8px;
    left: 8px;
    background-color: var(--m-accent);
    color: white;
    font-size: 10px;
    padding: 3px 8px;
    border-radius: var(--m-radius-sm);
    z-index: 2;
    font-weight: 500;
    box-shadow: 0 2px 4px rgba(255, 92, 133, 0.3);
  }
  
  /* 商品动作按钮 */
  .product-actions {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
    padding: 30px 10px 10px;
    display: flex;
    justify-content: center;
    gap: 10px;
    opacity: 0;
    transition: opacity var(--m-transition-normal);
  }
  
  .product-card:active .product-actions {
    opacity: 1;
  }
  
  .action-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--m-text-primary);
    font-size: 14px;
    transition: all var(--m-transition-fast);
    box-shadow: var(--m-shadow-sm);
  }
  
  .action-btn:active {
    transform: scale(0.9);
    background-color: var(--m-primary);
    color: white;
  }
  
  .product-info {
    padding: 8px 10px !important;
    display: flex !important;
    flex-direction: column !important;
    background: none !important;
    border-top: none !important;
  }
  
  .product-category {
    font-size: 10px !important;
    color: var(--m-text-tertiary) !important;
    margin-bottom: 2px !important;
  }
  
  .product-name {
    font-size: 13px !important;
    font-weight: 500 !important;
    line-height: 1.3 !important;
    height: 34px !important;
    margin-bottom: 5px !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    display: -webkit-box !important;
    -webkit-line-clamp: 2 !important;
    -webkit-box-orient: vertical !important;
  }
  
  .product-meta {
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
  }
  
  .product-price {
    color: var(--m-accent) !important;
    font-size: 14px !important;
    font-weight: 600 !important;
  }
  
  .product-sales {
    font-size: 11px !important;
    color: var(--m-text-tertiary) !important;
  }
  
  /* 分页样式修复 */
  .pagination-container {
    margin: var(--m-spacing-lg) 0;
    display: flex;
    justify-content: center;
    width: 100%;
    padding: 0 var(--m-spacing-md);
  }
  
  .pagination {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    padding: 0;
    margin: 0;
    list-style: none;
    gap: 5px;
  }
  
  .pagination a,
  .pagination span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    text-align: center;
    border-radius: var(--m-radius-md);
    color: var(--m-text-primary);
    background-color: var(--m-surface);
    box-shadow: var(--m-shadow-sm);
    transition: all var(--m-transition-fast);
    padding: 0 var(--m-spacing-sm);
    font-size: 14px;
    text-decoration: none !important;
  }
  
  .pagination a:hover,
  .pagination a:active {
    background-color: var(--m-surface-variant);
  }
  
  .pagination a.prev,
  .pagination a.next {
    font-weight: bold;
    width: auto;
    padding: 0 var(--m-spacing-md);
  }
  
  .pagination span.current {
    background-color: var(--m-primary);
    color: white;
    box-shadow: var(--m-shadow-md);
    font-weight: bold;
  }
}

/* 加载状态 */
.loading-state {
  position: relative;
  min-height: 200px;
  opacity: 0.7;
}

.loading-state::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 40px;
  height: 40px;
  border: 3px solid rgba(39, 86, 225, 0.2);
  border-top-color: var(--m-primary);
  border-radius: 50%;
  animation: m-spin 0.8s linear infinite;
}

/* 动画效果 */
.animate-fadeIn {
  animation: fadeIn 0.3s ease forwards;
  opacity: 0;
}

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

/* 首页"我们的优势"区域样式优化 */
@media (max-width: 768px) {
  body.mobile-theme .advantages-section {
    padding: var(--m-spacing-md) 0 var(--m-spacing-lg) !important;
    background-color: var(--m-background) !important;
    margin: var(--m-spacing-md) 0 !important;
    overflow: hidden !important;
    box-shadow: none !important;
    border-radius: 0 !important;
  }
  
  body.mobile-theme .advantages-title {
    font-size: 20px !important;
    font-weight: 600 !important;
    color: var(--m-text-primary) !important;
    margin-bottom: var(--m-spacing-lg) !important;
    position: relative !important;
    text-align: center !important;
    padding-bottom: 8px !important;
    border-bottom: none !important;
  }
  
  body.mobile-theme .advantages-title:after {
    content: '' !important;
    position: absolute !important;
    bottom: 0 !important;
    left: 50% !important;
    transform: translateX(-50%) !important;
    width: 40px !important;
    height: 3px !important;
    background-color: var(--m-primary) !important;
    border-radius: var(--m-radius-full) !important;
  }
  
  body.mobile-theme .advantages-grid {
    display: grid !important;
    grid-template-columns: repeat(2, 1fr) !important;
    gap: var(--m-spacing-md) !important;
    padding: 0 var(--m-spacing-md) !important;
  }
  
  body.mobile-theme .advantage-item {
    background-color: var(--m-surface) !important;
    border-radius: var(--m-radius-md) !important;
    padding: var(--m-spacing-md) !important;
    box-shadow: var(--m-shadow-sm) !important;
    text-align: center !important;
    transition: all var(--m-transition-normal) !important;
    position: relative !important;
    overflow: hidden !important;
    border: none !important;
    margin-bottom: 0 !important;
  }
  
  body.mobile-theme .advantage-item:active {
    transform: scale(0.98) !important;
    background-color: var(--m-surface-variant) !important;
  }
  
  body.mobile-theme .advantage-icon {
    width: 60px !important;
    height: 60px !important;
    line-height: 60px !important;
    border-radius: 50% !important;
    margin: 0 auto var(--m-spacing-md) !important;
    font-size: 24px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    transition: all var(--m-transition-normal) !important;
    background-color: rgba(39, 86, 225, 0.1) !important;
    color: var(--m-primary) !important;
  }
  
  body.mobile-theme .advantage-item:nth-child(2) .advantage-icon {
    background-color: rgba(255, 92, 133, 0.1) !important;
    color: var(--m-accent) !important;
  }
  
  body.mobile-theme .advantage-item:nth-child(3) .advantage-icon {
    background-color: rgba(40, 199, 111, 0.1) !important;
    color: var(--m-success) !important;
  }
  
  body.mobile-theme .advantage-item:nth-child(4) .advantage-icon {
    background-color: rgba(255, 159, 67, 0.1) !important;
    color: var(--m-warning) !important;
  }
  
  body.mobile-theme .advantage-item .item-title {
    font-size: 16px !important;
    font-weight: 600 !important;
    margin-bottom: 4px !important;
    color: var(--m-text-primary) !important;
  }
  
  body.mobile-theme .advantage-desc {
    font-size: 14px !important;
    color: var(--m-text-secondary) !important;
    line-height: 1.4 !important;
    margin: 0 !important;
  }
  
  @media (max-width: 576px) {
    body.mobile-theme .advantages-grid {
      grid-template-columns: 1fr !important;
    }
  }
  
  /* 强制覆盖style.css中的样式 */
  body.mobile-theme .advantage-title {
    display: none !important; /* 隐藏style.css中定义的.advantage-title */
  }
  
  /* 修复优势图标大小 */
  body.mobile-theme .advantage-icon i {
    font-size: 24px !important;
  }
  
  /* 使用特殊标记更精确地定位优势部分 */
  body.mobile-theme .mobile-optimized-section.advantages-section {
    padding: var(--m-spacing-md) 0 var(--m-spacing-lg) !important;
    background-color: var(--m-background) !important;
    margin: var(--m-spacing-md) 0 !important;
    box-shadow: none !important;
    border-radius: 0 !important;
  }
  
  body.mobile-theme .mobile-optimized-section .advantage-item {
    background-color: var(--m-surface) !important;
    border-radius: var(--m-radius-md) !important;
    padding: var(--m-spacing-md) !important;
    box-shadow: var(--m-shadow-sm) !important;
    text-align: center !important;
    transition: transform 0.3s ease !important;
    border: none !important;
    margin-bottom: 0 !important;
    height: auto !important;
  }
  
  body.mobile-theme .mobile-optimized-section .advantage-icon {
    width: 60px !important;
    height: 60px !important;
    line-height: 60px !important;
    border-radius: 50% !important;
    margin: 0 auto 12px !important;
    background-color: rgba(39, 86, 225, 0.1) !important;
  }
}

/* ===== 完全重写的优势区域样式 ===== */
/* 移动端专用样式 */
@media (max-width: 768px) {
  /* 强制覆盖样式 */
  body .m-features-section {
    padding: 16px !important;
    margin: 16px 0 !important;
    background-color: #f8f9fa !important;
  }
  
  body .m-features-header {
    margin-bottom: 16px !important;
    text-align: center !important;
  }
  
  body .m-features-title {
    font-size: 18px !important;
    font-weight: 600 !important;
    color: #333 !important;
    position: relative !important;
    display: inline-block !important;
    padding-bottom: 6px !important;
  }
  
  body .m-features-title:after {
    content: '' !important;
    position: absolute !important;
    bottom: 0 !important;
    left: 50% !important;
    transform: translateX(-50%) !important;
    width: 30px !important;
    height: 2px !important;
    background-color: #2977f3 !important;
    border-radius: 2px !important;
  }
  
  body .m-features-grid {
    display: grid !important;
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 12px !important;
  }
  
  body .m-feature-card {
    background-color: #fff !important;
    border-radius: 8px !important;
    padding: 12px !important;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05) !important;
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    text-align: center !important;
    transition: transform 0.2s ease !important;
  }
  
  body .m-feature-card:active {
    transform: scale(0.98) !important;
  }
  
  body .m-feature-icon {
    width: 40px !important;
    height: 40px !important;
    border-radius: 50% !important;
    background-color: rgba(41, 119, 243, 0.1) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    margin-bottom: 8px !important;
  }
  
  body .m-feature-icon i {
    font-size: 20px !important;
    color: #2977f3 !important;
  }
  
  body .m-icon-accent {
    background-color: rgba(255, 90, 95, 0.1) !important;
  }
  
  body .m-icon-accent i {
    color: #ff5a5f !important;
  }
  
  body .m-icon-success {
    background-color: rgba(40, 199, 111, 0.1) !important;
  }
  
  body .m-icon-success i {
    color: #28c76f !important;
  }
  
  body .m-icon-warning {
    background-color: rgba(255, 159, 67, 0.1) !important;
  }
  
  body .m-icon-warning i {
    color: #ff9f43 !important;
  }
  
  body .m-feature-content {
    flex: 1 !important;
  }
  
  body .m-feature-heading {
    font-size: 14px !important;
    font-weight: 600 !important;
    margin-bottom: 4px !important;
    color: #333 !important;
  }
  
  body .m-feature-desc {
    font-size: 12px !important;
    color: #666 !important;
    margin: 0 !important;
    line-height: 1.4 !important;
  }
}