/* ========== 全局重置与基础样式 ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html, body {
    width: 100%;
    min-height: 100vh;
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", "Microsoft YaHei", sans-serif;
    font-size: 14px;
    color: #262626;
    background: #FAFAFD;
    -webkit-font-smoothing: antialiased;
}

body {
    padding-bottom: 70px;
}

a {
    text-decoration: none;
    color: inherit;
}

img {
    display: block;
    max-width: 100%;
    border: 0;
}

ul, ol, li {
    list-style: none;
}

input, button, textarea, select {
    font-family: inherit;
    font-size: inherit;
    outline: none;
    border: none;
    background: none;
}

button {
    cursor: pointer;
}

/* ========== 主题色彩变量 ========== */
:root {
    --primary: #4628E9;
    --primary-light: #6B4FF0;
    --primary-dark: #3A1FD0;
    --danger: #FF4D4F;
    --success: #10C978;
    --warning: #FAAD14;
    --text-primary: #262626;
    --text-secondary: #8C8C8C;
    --text-tertiary: #BFBFBF;
    --border: #F0F0F0;
    --bg-page: #FAFAFD;
    --bg-card: #FFFFFF;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 16px rgba(70, 40, 233, 0.08);
    --shadow-lg: 0 8px 24px rgba(70, 40, 233, 0.12);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
}

/* ========== APP容器 ========== */
#app {
    max-width: 750px;
    margin: 0 auto;
    min-height: 100vh;
    position: relative;
    background: var(--bg-page);
}

/* ========== 顶部导航栏 ========== */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 56px;
    padding: 0 16px;
    background: #FFFFFF;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
}

.navbar-title {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
}

.navbar-left,
.navbar-right {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 60px;
}

.navbar-right {
    justify-content: flex-end;
}

.icon-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: #F5F5F5;
    color: var(--text-primary);
    transition: all 0.2s;
}

.icon-btn:active {
    transform: scale(0.95);
    background: #EBEBEB;
}

/* ========== 搜索栏 ========== */
.search-bar {
    padding: 10px 16px;
    background: #FFFFFF;
}

.search-input-wrap {
    display: flex;
    align-items: center;
    height: 38px;
    padding: 0 14px;
    background: #F5F5F5;
    border-radius: 19px;
}

.search-input-wrap svg {
    flex-shrink: 0;
    color: var(--text-tertiary);
}

.search-input {
    flex: 1;
    height: 100%;
    padding: 0 10px;
    font-size: 14px;
    color: var(--text-primary);
}

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

/* ========== Banner轮播 ========== */
.banner-section {
    padding: 12px 16px 0;
}

.banner {
    position: relative;
    width: 100%;
    height: 160px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.banner-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.banner-slide.active {
    opacity: 1;
}

.banner-slide.slide-1 {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.banner-slide.slide-2 {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.banner-slide.slide-3 {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.banner-content {
    color: #FFFFFF;
    max-width: 55%;
}

.banner-tag {
    display: inline-block;
    padding: 4px 10px;
    background: rgba(255, 255, 255, 0.25);
    border-radius: 12px;
    font-size: 12px;
    margin-bottom: 10px;
    backdrop-filter: blur(4px);
}

.banner-title {
    font-size: 22px;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 6px;
}

.banner-desc {
    font-size: 13px;
    opacity: 0.9;
    line-height: 1.5;
}

.banner-emoji {
    font-size: 72px;
    opacity: 0.9;
}

.banner-dots {
    position: absolute;
    bottom: 12px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 6px;
}

.banner-dot {
    width: 6px;
    height: 6px;
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.4);
    transition: all 0.3s;
}

.banner-dot.active {
    width: 18px;
    background: rgba(255, 255, 255, 0.95);
}

/* ========== 分类入口导航 ========== */
.category-nav {
    margin: 12px 16px 0;
    padding: 16px 0;
    background: #FFFFFF;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px 0;
}

.category-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 6px 4px;
    transition: transform 0.2s;
}

.category-item:active {
    transform: scale(0.95);
}

.category-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    font-size: 24px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
}

.category-name {
    font-size: 12px;
    color: var(--text-primary);
    font-weight: 500;
}

/* ========== 商品区域标题 ========== */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 16px 12px;
}

.section-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
}

.section-title::before {
    content: '';
    width: 4px;
    height: 18px;
    background: linear-gradient(180deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: 2px;
}

.section-more {
    display: flex;
    align-items: center;
    gap: 2px;
    font-size: 13px;
    color: var(--text-secondary);
}

/* ========== 商品网格（双列瀑布流） ========== */
.goods-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    padding: 0 12px 16px;
}

.goods-card {
    background: #FFFFFF;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.2s;
}

.goods-card:active {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.goods-image-wrap {
    position: relative;
    width: 100%;
    padding-top: 100%;
    background: linear-gradient(135deg, #F5F5F5 0%, #EDEDED 100%);
}

.goods-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.goods-tag {
    position: absolute;
    top: 8px;
    left: 8px;
    padding: 3px 8px;
    background: var(--success);
    color: #FFFFFF;
    font-size: 10px;
    font-weight: 600;
    border-radius: 6px;
}

.goods-tag.hot {
    background: linear-gradient(135deg, #FF6B6B 0%, #FF4D4F 100%);
}

.goods-info {
    padding: 10px 10px 12px;
}

.goods-title {
    font-size: 13px;
    color: var(--text-primary);
    font-weight: 500;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 36px;
    margin-bottom: 6px;
}

.goods-subtitle {
    font-size: 11px;
    color: var(--text-tertiary);
    line-height: 1.4;
    margin-bottom: 8px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.goods-bottom {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
}

.goods-price-wrap {
    display: flex;
    align-items: baseline;
    gap: 4px;
}

.goods-price {
    font-size: 17px;
    font-weight: 700;
    color: var(--danger);
}

.goods-price::before {
    content: '¥';
    font-size: 12px;
    font-weight: 600;
    margin-right: 1px;
}

.goods-original-price {
    font-size: 11px;
    color: var(--text-tertiary);
    text-decoration: line-through;
}

.goods-sales {
    font-size: 11px;
    color: var(--text-secondary);
}

.add-cart-btn {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: #FFFFFF;
    flex-shrink: 0;
    box-shadow: 0 3px 8px rgba(70, 40, 233, 0.3);
    transition: all 0.2s;
}

.add-cart-btn:active {
    transform: scale(0.9);
}

/* ========== 底部TabBar ========== */
.tabbar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: space-around;
    height: 64px;
    padding-bottom: env(safe-area-inset-bottom);
    background: #FFFFFF;
    box-shadow: 0 -1px 8px rgba(0, 0, 0, 0.06);
}

.tabbar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    max-width: 750px;
    margin: 0 auto;
    height: 100%;
    pointer-events: none;
}

.tabbar-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    padding: 6px 0;
    color: var(--text-tertiary);
    transition: color 0.2s;
    position: relative;
}

.tabbar-item.active {
    color: var(--primary);
}

.tabbar-icon {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tabbar-badge {
    position: absolute;
    top: -4px;
    right: -8px;
    min-width: 16px;
    height: 16px;
    padding: 0 4px;
    background: var(--danger);
    color: #FFFFFF;
    font-size: 10px;
    font-weight: 600;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.tabbar-label {
    font-size: 11px;
    font-weight: 500;
}

/* ========== Toast提示 ========== */
.toast {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    max-width: 80%;
    padding: 12px 20px;
    background: rgba(0, 0, 0, 0.75);
    color: #FFFFFF;
    font-size: 14px;
    border-radius: 10px;
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s;
    text-align: center;
}

.toast.show {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

/* ========== 分类页左侧分类栏 ========== */
.category-page {
    display: flex;
    height: calc(100vh - 56px - 64px);
    overflow: hidden;
}

.category-sidebar {
    width: 80px;
    flex-shrink: 0;
    background: #F5F5F5;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.category-sidebar::-webkit-scrollbar {
    display: none;
}

.category-tab {
    position: relative;
    padding: 14px 12px;
    text-align: center;
    font-size: 13px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.category-tab.active {
    background: #FFFFFF;
    color: var(--primary);
    font-weight: 600;
    border-left-color: var(--primary);
}

.category-content {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    background: #FFFFFF;
    padding: 12px;
}

.category-panel {
    display: none;
}

.category-panel.active {
    display: block;
}

.category-panel-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    padding: 4px 0 12px;
}

.goods-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.goods-card-sm {
    background: #FAFAFD;
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.goods-card-sm .goods-image-wrap {
    padding-top: 100%;
}

.goods-card-sm .goods-info {
    padding: 6px 6px 8px;
}

.goods-card-sm .goods-title {
    font-size: 11px;
    min-height: 30px;
    -webkit-line-clamp: 2;
    margin-bottom: 4px;
}

.goods-card-sm .goods-price {
    font-size: 13px;
}

/* ========== 购物车页面 ========== */
.cart-page {
    padding-bottom: 120px;
}

.cart-list {
    padding: 12px 16px;
}

.cart-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px;
    background: #FFFFFF;
    border-radius: var(--radius-md);
    margin-bottom: 10px;
    box-shadow: var(--shadow-sm);
}

.cart-checkbox {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
    border: 2px solid #D9D9D9;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
}

.cart-checkbox.checked {
    background: var(--primary);
    border-color: var(--primary);
}

.cart-checkbox.checked svg {
    color: #FFFFFF;
}

.cart-goods-img {
    width: 80px;
    height: 80px;
    flex-shrink: 0;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: #F5F5F5;
}

.cart-goods-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.cart-goods-info {
    flex: 1;
    min-width: 0;
}

.cart-goods-title {
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 500;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 8px;
}

.cart-goods-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.cart-goods-price {
    font-size: 16px;
    font-weight: 700;
    color: var(--danger);
}

.cart-goods-price::before {
    content: '¥';
    font-size: 11px;
    margin-right: 1px;
}

.quantity-control {
    display: flex;
    align-items: center;
    background: #F5F5F5;
    border-radius: 14px;
    overflow: hidden;
}

.quantity-btn {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 16px;
    font-weight: 600;
    transition: all 0.15s;
}

.quantity-btn:active {
    background: #EBEBEB;
}

.quantity-input {
    width: 36px;
    height: 28px;
    text-align: center;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    background: transparent;
}

/* 购物车底部结算栏 */
.cart-bar {
    position: fixed;
    bottom: 64px;
    left: 0;
    right: 0;
    max-width: 750px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    padding: 10px 16px;
    background: #FFFFFF;
    box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.06);
    z-index: 100;
}

.cart-bar-select {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.cart-bar-select span {
    font-size: 13px;
    color: var(--text-primary);
}

.cart-bar-info {
    flex: 1;
    text-align: right;
    padding-right: 12px;
}

.cart-bar-total-label {
    font-size: 12px;
    color: var(--text-secondary);
}

.cart-bar-total {
    font-size: 19px;
    font-weight: 700;
    color: var(--danger);
}

.cart-bar-total::before {
    content: '¥';
    font-size: 13px;
}

.checkout-btn {
    padding: 11px 24px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: #FFFFFF;
    font-size: 15px;
    font-weight: 600;
    border-radius: 24px;
    box-shadow: 0 4px 12px rgba(70, 40, 233, 0.25);
    transition: all 0.2s;
}

.checkout-btn:active {
    transform: scale(0.97);
    opacity: 0.9;
}

.checkout-btn:disabled {
    background: #D9D9D9;
    box-shadow: none;
    cursor: not-allowed;
}

/* 空购物车状态 */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px 24px;
    text-align: center;
}

.empty-icon {
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(70, 40, 233, 0.1) 0%, rgba(107, 79, 240, 0.15) 100%);
    margin-bottom: 20px;
}

.empty-icon svg {
    color: var(--primary);
}

.empty-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.empty-desc {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.empty-btn {
    padding: 10px 32px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: #FFFFFF;
    font-size: 14px;
    font-weight: 500;
    border-radius: 22px;
    box-shadow: 0 4px 12px rgba(70, 40, 233, 0.25);
}

/* ========== 我的页面 ========== */
.me-page {
    padding-bottom: 64px;
}

/* 用户头部渐变区域 */
.me-header {
    position: relative;
    padding: 20px 16px 60px;
    background: linear-gradient(135deg, #1A1A3E 0%, #2D2B6D 40%, #4628E9 100%);
    color: #FFFFFF;
    overflow: hidden;
}

.me-header::before {
    content: '';
    position: absolute;
    top: -50px;
    right: -40px;
    width: 180px;
    height: 180px;
    background: radial-gradient(circle, rgba(255,255,255,0.12) 0%, transparent 70%);
    border-radius: 50%;
}

.me-header::after {
    content: '';
    position: absolute;
    bottom: -60px;
    left: -30px;
    width: 140px;
    height: 140px;
    background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
    border-radius: 50%;
}

.me-header-top {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.me-header-title {
    font-size: 18px;
    font-weight: 600;
}

.me-header-actions {
    display: flex;
    gap: 8px;
}

.me-header-actions .icon-btn {
    background: rgba(255, 255, 255, 0.15);
    color: #FFFFFF;
}

.me-user-card {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: 14px;
}

.me-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: linear-gradient(135deg, #FFFFFF 0%, #E8E8FF 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    color: var(--primary);
    flex-shrink: 0;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.me-user-info {
    flex: 1;
    min-width: 0;
}

.me-nickname {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.me-level-badge {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    padding: 2px 8px;
    background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
    color: #8B4513;
    font-size: 10px;
    font-weight: 600;
    border-radius: 10px;
}

.me-user-desc {
    font-size: 12px;
    opacity: 0.8;
}

/* 统计卡片 */
.me-stats {
    position: relative;
    margin: -40px 16px 0;
    padding: 18px 0;
    background: #FFFFFF;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    z-index: 2;
}

.me-stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    border-right: 1px solid var(--border);
}

.me-stat-item:last-child {
    border-right: none;
}

.me-stat-num {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.me-stat-label {
    font-size: 11px;
    color: var(--text-secondary);
}

/* 功能卡片组 */
.me-section {
    margin: 14px 16px 0;
    background: #FFFFFF;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.me-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px 10px;
}

.me-section-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

.me-section-more {
    font-size: 12px;
    color: var(--text-secondary);
}

/* 订单入口 */
.me-order-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    padding: 0 8px 14px;
}

.me-order-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 8px 4px;
    position: relative;
    transition: transform 0.15s;
}

.me-order-item:active {
    transform: scale(0.95);
}

.me-order-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 20px;
    background: linear-gradient(135deg, rgba(70, 40, 233, 0.08) 0%, rgba(107, 79, 240, 0.12) 100%);
    color: var(--primary);
}

.me-order-label {
    font-size: 12px;
    color: var(--text-primary);
}

.me-order-badge {
    position: absolute;
    top: 4px;
    right: calc(50% - 28px);
    min-width: 16px;
    height: 16px;
    padding: 0 4px;
    background: var(--danger);
    color: #FFFFFF;
    font-size: 10px;
    font-weight: 600;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

/* 2列功能入口 */
.me-2col-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    padding: 0 16px 16px;
}

.me-2col-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px;
    background: #FAFAFD;
    border-radius: var(--radius-md);
    transition: all 0.15s;
}

.me-2col-item:active {
    transform: scale(0.97);
    background: #F0F0F8;
}

.me-2col-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    font-size: 18px;
    flex-shrink: 0;
}

.me-2col-text {
    flex: 1;
    min-width: 0;
}

.me-2col-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.me-2col-desc {
    font-size: 11px;
    color: var(--text-secondary);
}

/* 4列功能网格 */
.me-4col-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    padding: 0 8px 16px;
}

.me-4col-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 10px 4px;
    transition: transform 0.15s;
}

.me-4col-item:active {
    transform: scale(0.95);
}

.me-4col-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    font-size: 20px;
}

.me-4col-label {
    font-size: 12px;
    color: var(--text-primary);
}

/* 菜单列表 */
.me-menu-list {
    padding: 4px 0;
}

.me-menu-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    transition: background 0.15s;
}

.me-menu-item:active {
    background: #FAFAFD;
}

.me-menu-icon {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}

.me-menu-text {
    flex: 1;
    font-size: 14px;
    color: var(--text-primary);
}

.me-menu-arrow {
    color: var(--text-tertiary);
    flex-shrink: 0;
}

/* ========== 响应式调整 ========== */
@media (min-width: 480px) {
    .banner {
        height: 180px;
    }
    .banner-title {
        font-size: 24px;
    }
    .category-icon {
        width: 52px;
        height: 52px;
        font-size: 26px;
    }
}

@media (min-width: 640px) {
    .goods-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .category-sidebar {
        width: 88px;
    }
}