/* 商城屏幕样式 */
#shop-screen {
    background-color: #f7f7f7;
    display: none; /* 默认隐藏，由 switchScreen 控制 */
    flex-direction: column;
    height: 100%;
    overflow: hidden;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100; /* 确保层级正确 */
}

#shop-screen.active {
    display: flex;
}

/* 商城顶部导航 */
#shop-screen .app-header {
    background-color: #fff;
    border-bottom: 1px solid #f0f0f0;
    flex-shrink: 0;
}

/* Tab 切换栏 */
.shop-tabs {
    display: flex;
    background: #fff;
    padding: 0 10px;
    border-bottom: 1px solid #eee;
    overflow-x: auto;
    scrollbar-width: none; /* Firefox */
    flex-shrink: 0;
}

.shop-tabs::-webkit-scrollbar {
    display: none; /* Chrome/Safari */
}

.shop-tab-item {
    padding: 12px 8px;
    font-size: 15px;
    color: #666;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
    position: relative;
    transition: color 0.3s ease;
}

.shop-tab-item.active {
    color: var(--primary-color);
    font-weight: 600;
}

.shop-tab-item.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

/* 商城内容区域 */
.shop-content {
    flex: 1;
    overflow-y: auto;
    padding: 15px;
    position: relative;
}

/* 促销 Banner */
.shop-banner {
    width: 100%;
    height: 120px;
    border-radius: 12px;
    background: linear-gradient(135deg, #ff9a9e 0%, #fecfef 99%, #fecfef 100%);
    margin-bottom: 20px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(255, 154, 158, 0.3);
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 20px;
    color: #fff;
    cursor: pointer;
    transition: transform 0.2s;
}

.shop-banner:active {
    transform: scale(0.98);
}

.shop-banner-tag {
    background-color: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(4px);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: bold;
    align-self: flex-start;
    margin-bottom: 8px;
    border: 1px solid rgba(255, 255, 255, 0.4);
}

.shop-banner-title {
    font-size: 20px;
    font-weight: 800;
    margin-bottom: 4px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.shop-banner-desc {
    font-size: 13px;
    opacity: 0.9;
}

.shop-banner-decoration {
    position: absolute;
    right: -10px;
    bottom: -10px;
    font-size: 80px;
    opacity: 0.2;
    transform: rotate(-15deg);
}

/* 商品网格 */
.shop-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    padding-bottom: 20px;
}

/* 商品卡片 */
.shop-item-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    transition: transform 0.2s, box-shadow 0.2s;
    cursor: pointer;
    border: 1px solid transparent;
}

.shop-item-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.08);
}

.shop-item-card.ad-item {
    border: 1px dashed #ffd700;
    background: #fffdf5;
}

.shop-item-image-box {
    width: 100%;
    aspect-ratio: 1;
    background-color: #f9f9f9;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    position: relative;
}

.shop-item-svg {
    width: 60%;
    height: 60%;
    filter: drop-shadow(0 4px 6px rgba(0,0,0,0.1));
    transition: transform 0.3s;
}

.shop-item-card:hover .shop-item-svg {
    transform: scale(1.1);
}

.shop-item-ad-badge {
    position: absolute;
    top: 8px;
    right: 8px;
    background-color: rgba(0, 0, 0, 0.05);
    color: #999;
    font-size: 10px;
    padding: 2px 4px;
    border-radius: 2px;
}

.shop-item-info {
    padding: 10px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.shop-item-name {
    font-size: 14px;
    font-weight: 600;
    color: #333;
    margin-bottom: 4px;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.shop-item-desc {
    font-size: 11px;
    color: #999;
    margin-bottom: 8px;
    line-height: 1.4;
    flex: 1;
}

.shop-item-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
}

.shop-item-price {
    font-size: 16px;
    font-weight: 700;
    color: #ff453a;
}

.shop-item-price::before {
    content: '¥';
    font-size: 12px;
    margin-right: 1px;
}

/* 线性风格购买按钮 */
.shop-item-buy-btn {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background-color: transparent;
    border: 1px solid #eee;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #333;
    font-size: 14px;
    transition: all 0.2s;
}

.shop-item-buy-btn:active {
    background-color: #f5f5f5;
    transform: scale(0.9);
}

/* 加载状态 - 骨架屏 */
.shop-loading-skeleton {
    padding: 15px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    animation: fadeIn 0.3s ease;
}

.skeleton-banner {
    width: 100%;
    height: 120px;
    border-radius: 12px;
    background: #f0f0f0;
    position: relative;
    overflow: hidden;
}

.skeleton-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.skeleton-card {
    background: #fff;
    border-radius: 12px;
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.03);
}

.skeleton-img {
    width: 100%;
    aspect-ratio: 1;
    background: #f0f0f0;
    border-radius: 8px;
}

.skeleton-text {
    height: 14px;
    background: #f0f0f0;
    border-radius: 4px;
    width: 80%;
}

.skeleton-text.short {
    width: 40%;
}

/* 骨架屏扫光动画 */
.skeleton-banner::after,
.skeleton-img::after,
.skeleton-text::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.5), transparent);
    transform: translateX(-100%);
    animation: shimmer 1.5s infinite;
}

.skeleton-banner, .skeleton-img, .skeleton-text {
    position: relative;
    overflow: hidden;
}

@keyframes shimmer {
    100% { transform: translateX(100%); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}


/* 配送方式弹窗 */
.delivery-options-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    margin: 20px 0;
}

.delivery-option-card {
    background: #f9f9f9;
    border: 2px solid transparent;
    border-radius: 12px;
    padding: 15px;
    display: flex;
    align-items: center;
    cursor: pointer;
    transition: all 0.2s;
}

.delivery-option-card:hover {
    background: #f0f0f0;
}

.delivery-option-card.active {
    border-color: var(--primary-color);
    background: #fff;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.delivery-icon {
    font-size: 24px;
    margin-right: 15px;
    width: 40px;
    height: 40px;
    background: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.delivery-info {
    flex: 1;
}

.delivery-title {
    font-weight: 600;
    color: #333;
    font-size: 15px;
    margin-bottom: 2px;
}

.delivery-desc {
    font-size: 12px;
    color: #888;
}

/* 占位状态 */
.shop-empty-state {
    text-align: center;
    color: #999;
    padding: 40px 20px;
}

.shop-empty-icon {
    width: 80px;
    height: 80px;
    margin-bottom: 15px;
    opacity: 0.5;
}

/* 商城订单卡片样式 */
.shop-order-card {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    width: 250px;
    overflow: visible; /* 允许时间戳显示在外部 */
    position: relative; /* 确保时间戳定位正确 */
    font-family: 'Poppins', sans-serif;
    border: 1px solid #f0f0f0;
}

.shop-order-header {
    background: var(--primary-color, #ff9a9e);
    color: #fff;
    padding: 10px 15px;
    font-weight: 700;
    font-size: 14px;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-top-left-radius: 12px;
    border-top-right-radius: 12px;
}

.shop-order-divider {
    height: 1px;
    background: repeating-linear-gradient(to right, #eee 0, #eee 5px, transparent 5px, transparent 10px);
}

.shop-order-body {
    padding: 10px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.shop-order-icon {
    font-size: 24px;
    width: 40px;
    height: 40px;
    background: #fff5f5;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.shop-order-info {
    flex: 1;
    min-width: 0; /* 允许文本溢出省略 */
}

.shop-order-name {
    font-size: 14px;
    font-weight: 600;
    color: #333;
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.shop-order-delivery {
    font-size: 12px;
    color: #888;
}

.shop-order-footer {
    padding: 10px 15px;
    background: #fcfcfc;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    border-bottom-left-radius: 12px;
    border-bottom-right-radius: 12px;
}

.shop-order-price {
    font-weight: 700;
    color: #ff453a;
}

.shop-order-status {
    color: #4cd964;
    background: rgba(76, 217, 100, 0.1);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 500;
}

/* =========================================
   购物车 UI (Ins风极简毛玻璃胶囊)
   ========================================= */

/* 1. 悬浮胶囊 */
.shop-cart-fab {
    position: absolute;
    bottom: 30px;
    right: 20px;
    height: 54px;
    min-width: 54px;
    padding: 0 16px; /* 默认 padding，圆形时会调整 */
    border-radius: 27px;
    
    /* 毛玻璃背景 */
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    
    /* 极细边框和柔和阴影 */
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08), 0 2px 10px rgba(0, 0, 0, 0.02);
    
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 200;
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    color: #333;
    overflow: hidden;
}

/* 无商品时保持圆形/小胶囊 */
.shop-cart-fab:not(.has-items) {
    padding: 0;
    width: 54px;
}

.shop-cart-fab:active {
    transform: scale(0.96);
    background-color: rgba(255, 255, 255, 0.95);
}

.shop-cart-content {
    display: flex;
    align-items: center;
    height: 100%;
}

.shop-cart-icon {
    display: flex;
    align-items: center;
    justify-content: center;
}

.shop-cart-icon svg {
    width: 24px;
    height: 24px;
    color: #1a1a1a; /* 深黑 */
    stroke-width: 1.5px;
}

/* 价格组 (展开时显示) */
.shop-cart-price-group {
    display: flex;
    align-items: center;
    margin-left: 0;
    opacity: 0;
    max-width: 0;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.shop-cart-fab.has-items .shop-cart-price-group {
    margin-left: 12px;
    opacity: 1;
    max-width: 100px; /* 足够显示价格 */
}

.shop-cart-divider {
    width: 1px;
    height: 16px;
    background-color: rgba(0, 0, 0, 0.1);
    margin-right: 12px;
}

.shop-cart-total {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-weight: 500;
    font-size: 15px;
    color: #1a1a1a;
    letter-spacing: -0.5px;
}

/* 角标 (极简小红点) */
.shop-cart-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background-color: #ff3b30;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    box-shadow: 0 0 0 2px #fff;
    pointer-events: none;
    /* 隐藏数字，只显示红点，或者如果需要数字，可以调整样式 */
    color: transparent; 
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0;
}

/* 如果有商品，角标位置微调 */
.shop-cart-fab.has-items .shop-cart-badge {
    right: auto;
    left: 34px; /* 定位在图标右上角 */
    top: 14px;
}

/* 购物车数字跳动动画 */
.shop-cart-badge.bump {
    animation: bump 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

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

/* 2. 遮罩层 */
.shop-cart-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.3); /* 变淡 */
    backdrop-filter: blur(2px); /* 模糊背景 */
    z-index: 190;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

.shop-cart-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

/* 3. 购物车面板 (Bottom Sheet) */
.shop-cart-panel {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    max-height: 80%;
    background-color: #fff;
    border-top-left-radius: 24px;
    border-top-right-radius: 24px;
    z-index: 210;
    transform: translateY(100%);
    transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    display: flex;
    flex-direction: column;
    box-shadow: 0 -10px 40px rgba(0,0,0,0.1);
}

.shop-cart-panel.active {
    transform: translateY(0);
}

.cart-header {
    padding: 20px 24px;
    border-bottom: 1px solid #f5f5f5;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: 18px;
    color: #1a1a1a;
}

.cart-clear-btn {
    font-size: 14px;
    color: #999;
    cursor: pointer;
    font-weight: 400;
}

.cart-items-container {
    flex: 1;
    overflow-y: auto;
    padding: 10px 0;
    min-height: 150px;
}

.cart-empty-tip {
    text-align: center;
    color: #ccc;
    padding: 40px 0;
    font-size: 14px;
}

.cart-item-row {
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #f9f9f9;
}

.cart-item-row:last-child {
    border-bottom: none;
}

.cart-item-name {
    flex: 1;
    font-size: 15px;
    color: #333;
    padding-right: 10px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.cart-item-price {
    font-weight: 600;
    color: #333;
    margin-right: 20px;
    font-size: 15px;
}

.cart-item-controls {
    display: flex;
    align-items: center;
    gap: 12px;
}

.cart-ctrl-btn {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 1px solid #eee;
    background: #fff;
    color: #333;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 16px;
    line-height: 1;
    padding-bottom: 2px;
    transition: all 0.2s;
}

.cart-ctrl-btn:active {
    background-color: #f5f5f5;
}

.cart-ctrl-btn.plus {
    background-color: #1a1a1a;
    border-color: #1a1a1a;
    color: #fff;
}

.cart-item-qty {
    font-size: 15px;
    font-weight: 500;
    min-width: 20px;
    text-align: center;
}

.cart-footer {
    padding: 20px 24px;
    border-top: 1px solid #f5f5f5;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #fff;
    padding-bottom: max(20px, env(safe-area-inset-bottom));
}

.cart-total-price {
    font-size: 24px;
    font-weight: 700;
    color: #1a1a1a;
    letter-spacing: -0.5px;
}

.cart-checkout-btn {
    background-color: #1a1a1a;
    color: #fff;
    border: none;
    padding: 14px 32px;
    border-radius: 30px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    transition: transform 0.2s;
}

.cart-checkout-btn:active {
    transform: scale(0.98);
}

.cart-checkout-btn:disabled {
    background-color: #f0f0f0;
    color: #ccc;
    box-shadow: none;
    cursor: not-allowed;
}

/* =========================================
   聊天界面 - 小票风格气泡 (Receipt UI)
   ========================================= */

.receipt-bubble {
    background-color: #fff;
    width: 180px;
    padding: 0;
    margin: 0 8px;
    position: relative;
    /* 模拟小票锯齿边缘 */
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
    font-family: 'Courier New', Courier, monospace; /* 等宽字体感 */
    color: #333;
    overflow: hidden;
    /* 通过 mask 或 background 实现锯齿比较复杂，这里用简单的 border-radius 和虚线模拟 */
    border-radius: 6px; 
}

/* 顶部装饰条 */
.receipt-header {
    text-align: center;
    padding: 10px 10px 10px;
    border-bottom: 2px dashed #e0e0e0;
}

.receipt-brand {
    font-weight: 800;
    font-size: 16px;
    letter-spacing: 2px;
    margin-bottom: 4px;
    text-transform: uppercase;
}

.receipt-id {
    font-size: 10px;
    color: #999;
}

/* 商品列表区 */
.receipt-items {
    padding: 15px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.receipt-item-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    font-size: 12px;
    line-height: 1.4;
}

.receipt-item-name {
    flex: 0 1 auto;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    margin-right: 5px;
}

/* 虚线连接符 */
.receipt-dots {
    flex: 1;
    border-bottom: 1px dotted #ccc;
    margin: 0 4px;
    height: 1em;
    opacity: 0.5;
    min-width: 10px;
}

.receipt-item-qty {
    font-weight: bold;
    margin-left: 5px;
}

/* 汇总区 */
.receipt-total-section {
    padding: 10px 15px;
    border-top: 1.5px solid #333; /* 实线强调 */
    border-bottom: 1.5px solid #333;
    margin: 0 15px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.receipt-total-label {
    font-weight: 900;
    font-size: 14px;
}

.receipt-total-price {
    font-weight: 900;
    font-size: 18px;
}

/* 底部信息 */
.receipt-footer {
    padding: 10px 15px 2px 15px;
    font-size: 10px;
    color: #666;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.receipt-delivery-info {
    display: flex;
    justify-content: space-between;
}

/* 底部锯齿装饰 (使用 radial-gradient 模拟) */
.receipt-bubble::after {
    content: "";
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 10px;
    background: radial-gradient(circle, transparent 50%, #fff 55%) 0 0;
    background-size: 10px 10px;
    transform: rotate(180deg);
}

/* 调整容器的 padding-bottom 以适应锯齿 */
.receipt-bubble {
    padding-bottom: 10px;
}

/* 代付请求小票样式 */
.receipt-bubble.pay-request .receipt-header {
    /* border-bottom: 2px solid #333; Removed to match standard receipt style */
}

.receipt-bubble.pay-request .receipt-brand {
    color: #333;
}

/* 新的状态图标 (SVG) - 替代印章 */
.receipt-status-icon {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 24px;
    height: 24px;
    color: #333; /* 深灰/黑，非语义色 */
    opacity: 0.6;
    pointer-events: none;
}

/* 支付状态文字 */
.pay-status-text {
    font-weight: 600;
    color: #333;
}

/* 代付请求操作按钮 */
.receipt-actions {
    display: flex;
    border-top: 1px solid #eee;
    margin-top: 5px;
}

.receipt-action-btn {
    flex: 1;
    border: none;
    background: transparent;
    padding: 10px 0;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

.receipt-action-btn:first-child {
    border-right: 1px solid #eee;
    color: #4cd964;
}

.receipt-action-btn:last-child {
    color: #ff3b30;
}

.receipt-action-btn:hover {
    background-color: #f9f9f9;
}

/* 自提口令显示 */
.receipt-pickup-code {
    text-align: center;
    font-size: 12px;
    font-weight: bold;
    color: #333;
    margin: 10px 0;
    letter-spacing: 1px;
    background: #f0f0f0;
    padding: 5px;
    border-radius: 4px;
}

/* Action Sheet Overlay */
.action-sheet-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 200;
    display: none;
    flex-direction: column;
    justify-content: flex-end;
}

.action-sheet-overlay.visible {
    display: flex;
}

.action-sheet {
    background-color: #fff;
    border-top-left-radius: 12px;
    border-top-right-radius: 12px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    animation: slideUp 0.3s ease-out;
}

.action-sheet-button {
    padding: 15px;
    border-radius: 10px;
    border: none;
    background-color: #f5f5f5;
    font-size: 16px;
    font-weight: 600;
    color: #333;
    cursor: pointer;
}

.action-sheet-button.danger {
    color: #ff3b30;
    background-color: #fff;
}

/* 修复模态框层级问题 */
#shop-category-manage-modal {
    z-index: 300; /* 高于购物车悬浮球 (200) */
}