*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:14px;line-height:1.6;color:#333;background:#f5f5f5}
a{color:#333;text-decoration:none}
a:hover{color:#e74c3c}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 16px}
.btn{display:inline-block;padding:8px 20px;border:1px solid transparent;border-radius:6px;font-size:14px;cursor:pointer;text-align:center;transition:all .2s;line-height:1.5}
.btn-primary{background:#e74c3c;color:#fff;border-color:#e74c3c}
.btn-primary:hover{background:#c0392b;color:#fff}
.btn-outline{background:#fff;color:#333;border-color:#ddd}
.btn-outline:hover{border-color:#e74c3c;color:#e74c3c}
.btn-sm{padding:5px 12px;font-size:13px}
.btn-lg{padding:12px 32px;font-size:16px}
.btn-block{display:block;width:100%}
.btn-danger-outline{border-color:#e74c3c;color:#e74c3c}
.btn-danger-outline:hover{background:#e74c3c;color:#fff}
.btn-link{background:none;border:none;color:#3498db;cursor:pointer;padding:0 4px;font-size:14px}
.btn-link:hover{text-decoration:underline}
.btn-link.btn-danger{color:#e74c3c}

/* Header */
.site-header{background:#fff;box-shadow:0 2px 8px rgba(0,0,0,.06);position:sticky;top:0;z-index:100}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center}
.logo img{height:36px}
.logo-text{font-size:20px;font-weight:700;color:#e74c3c}
.main-nav{display:flex;gap:24px}
.nav-link{font-size:15px;color:#555;padding:6px 0;border-bottom:2px solid transparent}
.nav-link:hover,.nav-link.active{color:#e74c3c;border-bottom-color:#e74c3c}
.header-right{display:flex;align-items:center;gap:16px}
.cart-link{display:flex;align-items:center;gap:6px;padding:6px 14px;border:1px solid #ddd;border-radius:20px;font-size:14px;position:relative}
.cart-link:hover{border-color:#e74c3c;color:#e74c3c}
.cart-badge{background:#e74c3c;color:#fff;font-size:11px;padding:1px 6px;border-radius:10px;min-width:18px;text-align:center}

/* Flash */
.flash-message{padding:12px 20px;margin:16px auto;max-width:1200px;border-radius:6px;font-size:14px}
.flash-success{background:#d4edda;color:#155724;border:1px solid #c3e6cb}
.flash-error{background:#f8d7da;color:#721c24;border:1px solid #f5c6cb}

.main-content{min-height:calc(100vh - 200px);padding:24px 0}
.page-title{font-size:24px;margin-bottom:20px;color:#222}

/* Banner */
.banner{background:linear-gradient(135deg,#e74c3c 0%,#c0392b 100%);border-radius:12px;padding:48px 40px;margin-bottom:24px;color:#fff}
.banner-text h1{font-size:32px;margin-bottom:8px}
.banner-text p{font-size:16px;opacity:.9}

/* Filter */
.filter-bar{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;flex-wrap:wrap;gap:12px}
.search-form{display:flex;gap:8px}
.search-form input{padding:8px 14px;border:1px solid #ddd;border-radius:6px;width:240px;font-size:14px}
.search-form input:focus{outline:none;border-color:#e74c3c}
.search-form button{padding:8px 20px;background:#e74c3c;color:#fff;border:none;border-radius:6px;cursor:pointer}
.category-tabs{display:flex;gap:8px;flex-wrap:wrap}
.tab{padding:6px 16px;background:#fff;border:1px solid #ddd;border-radius:20px;font-size:13px;color:#666}
.tab:hover{border-color:#e74c3c;color:#e74c3c}
.tab.active{background:#e74c3c;color:#fff;border-color:#e74c3c}

/* Product Grid */
.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:20px}
.product-card{background:#fff;border-radius:10px;overflow:hidden;transition:transform .2s,box-shadow .2s;position:relative}
.product-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px rgba(0,0,0,.1)}
.product-image-link{display:block;position:relative}
.product-image{width:100%;height:200px;object-fit:cover}
.product-placeholder{width:100%;height:200px;background:#f0f0f0;display:flex;align-items:center;justify-content:center;color:#999}
.discount-tag{position:absolute;top:10px;left:10px;background:#e74c3c;color:#fff;font-size:12px;padding:2px 8px;border-radius:4px}
.product-info{padding:14px}
.product-name{font-size:15px;margin-bottom:6px;line-height:1.4}
.product-name a{color:#333}
.product-name a:hover{color:#e74c3c}
.product-desc{font-size:12px;color:#999;margin-bottom:10px;height:36px;overflow:hidden}
.product-price-row{display:flex;align-items:baseline;gap:8px;margin-bottom:12px}
.product-price{font-size:20px;font-weight:700;color:#e74c3c}
.product-original-price{font-size:13px;color:#bbb;text-decoration:line-through}
.product-actions{display:flex;gap:8px}
.product-actions .btn{flex:1}
.add-cart-form{flex:1}
.add-cart-form .btn{width:100%}

/* Product Detail */
.breadcrumb{font-size:13px;color:#999;margin-bottom:16px}
.breadcrumb a{color:#666}
.breadcrumb a:hover{color:#e74c3c}
.product-detail{display:flex;gap:32px;background:#fff;padding:32px;border-radius:12px}
.product-detail-image{flex:0 0 400px}
.product-detail-image img{width:100%;border-radius:8px}
.product-placeholder-large{width:400px;height:400px;background:#f0f0f0;display:flex;align-items:center;justify-content:center;color:#999;border-radius:8px}
.product-detail-info{flex:1}
.product-detail-name{font-size:24px;margin-bottom:10px;color:#222}
.product-category-tag{display:inline-block;background:#f0f0f0;color:#666;padding:2px 10px;border-radius:4px;font-size:12px;margin-bottom:16px}
.product-detail-price-box{background:#fff5f5;padding:16px 20px;border-radius:8px;margin-bottom:20px;display:flex;align-items:baseline;gap:12px}
.product-detail-price{font-size:32px;font-weight:700;color:#e74c3c}
.product-detail-original{font-size:16px;color:#bbb;text-decoration:line-through}
.product-detail-discount{background:#e74c3c;color:#fff;padding:2px 8px;border-radius:4px;font-size:12px}
.product-detail-meta{margin-bottom:20px}
.meta-row{display:flex;padding:6px 0;font-size:14px}
.meta-label{color:#999;width:80px}
.meta-value{color:#333}
.product-detail-desc{margin-bottom:24px}
.product-detail-desc h3{font-size:16px;margin-bottom:8px;color:#333}
.product-detail-desc p{color:#666;line-height:1.8}
.quantity-selector{display:flex;align-items:center;gap:8px;margin-bottom:20px}
.quantity-selector label{color:#666}
.qty-btn{width:32px;height:32px;border:1px solid #ddd;background:#fff;cursor:pointer;font-size:16px;border-radius:4px}
.qty-btn:hover{border-color:#e74c3c;color:#e74c3c}
.quantity-selector input{width:60px;height:32px;text-align:center;border:1px solid #ddd;border-radius:4px}
.buy-actions{display:flex;gap:12px}
.buy-actions .btn{flex:1}
.out-of-stock{padding:16px;background:#f5f5f5;text-align:center;color:#999;border-radius:8px;font-size:16px}

/* Cart */
.cart-table-wrapper{background:#fff;border-radius:10px;overflow:hidden;margin-bottom:20px}
.cart-table{width:100%;border-collapse:collapse}
.cart-table th{background:#fafafa;padding:14px 16px;text-align:left;font-weight:600;color:#666;border-bottom:1px solid #eee}
.cart-table td{padding:16px;border-bottom:1px solid #f0f0f0}
.cart-product-cell{display:flex;align-items:center;gap:12px}
.cart-thumb{width:60px;height:60px;object-fit:cover;border-radius:6px}
.cart-product-name{font-size:14px}
.qty-input{width:60px;padding:6px;border:1px solid #ddd;border-radius:4px;text-align:center}
.cart-subtotal{color:#e74c3c;font-weight:600}
.cart-footer{display:flex;justify-content:space-between;align-items:center;background:#fff;padding:20px;border-radius:10px}
.cart-actions-left{display:flex;gap:12px}
.cart-summary{text-align:right}
.cart-total-row{font-size:16px;margin-bottom:12px}
.cart-total-price{font-size:28px;font-weight:700;color:#e74c3c}

/* Checkout */
.checkout-layout{display:flex;gap:24px}
.checkout-left{flex:1}
.checkout-right{flex:0 0 360px}
.checkout-section{background:#fff;padding:24px;border-radius:10px;margin-bottom:20px}
.section-title{font-size:18px;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid #eee}
.form-row{display:flex;gap:16px;margin-bottom:16px}
.form-group{flex:1;margin-bottom:16px}
.form-group label{display:block;margin-bottom:6px;font-size:14px;color:#555}
.form-group input[type=text],.form-group input[type=tel],.form-group input[type=email],.form-group input[type=number],.form-group textarea{width:100%;padding:10px 12px;border:1px solid #ddd;border-radius:6px;font-size:14px}
.form-group input:focus,.form-group textarea:focus{outline:none;border-color:#e74c3c}
.required{color:#e74c3c}
.payment-options{display:flex;gap:12px}
.payment-option{flex:1;display:flex;align-items:center;gap:10px;padding:14px;border:2px solid #eee;border-radius:8px;cursor:pointer;transition:border-color .2s}
.payment-option:has(input:checked){border-color:#e74c3c}
.payment-icon{width:32px;height:32px;border-radius:6px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:14px}
.payment-icon.wechat{background:#07c160}
.payment-icon.alipay{background:#1677ff}
.payment-icon.bank{background:#f39c12}
.payment-name{font-size:14px}
.bank-info{margin-top:16px;padding:16px;background:#f9f9f9;border-radius:8px}
.bank-info h4{margin-bottom:8px}
.bank-info pre{white-space:pre-wrap;font-family:inherit;color:#555}
.bank-tip{font-size:12px;color:#999;margin-top:8px}
.order-summary{background:#fff;padding:24px;border-radius:10px;position:sticky;top:80px}
.summary-items{margin-bottom:12px}
.summary-item{display:flex;justify-content:space-between;padding:8px 0;font-size:14px}
.summary-divider{border-top:1px solid #eee;margin:12px 0}
.summary-total{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:20px;font-size:16px}
.summary-total-price{font-size:24px;font-weight:700;color:#e74c3c}
.order-summary .btn{margin-bottom:10px}

/* ========== 支付页面 ========== */
.pay-page{max-width:600px;margin:0 auto;background:#fff;border-radius:12px;padding:32px;box-shadow:0 2px 12px rgba(0,0,0,.08)}
.pay-header{text-align:center;margin-bottom:24px}
.pay-header h1{font-size:24px;color:#222;margin-bottom:8px}
.pay-order-id{font-size:14px;color:#666}
.pay-order-id strong{color:#e74c3c}
.pay-amount-box{text-align:center;padding:24px;background:linear-gradient(135deg,#fff5f5,#ffe8e8);border-radius:10px;margin-bottom:24px}
.pay-amount-label{display:block;font-size:14px;color:#999;margin-bottom:8px}
.pay-amount{font-size:40px;font-weight:700;color:#e74c3c}
.pay-method-box{margin-bottom:24px}
.pay-method-tabs{display:flex;gap:8px;margin-bottom:20px;border-bottom:2px solid #f0f0f0;padding-bottom:0}
.pay-tab{flex:1;text-align:center;padding:12px 8px;font-size:14px;color:#666;border-bottom:2px solid transparent;margin-bottom:-2px;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:6px}
.pay-tab:hover{color:#e74c3c}
.pay-tab.active{color:#e74c3c;border-bottom-color:#e74c3c;font-weight:600}
.pay-tab .payment-icon{width:24px;height:24px;font-size:12px}
.pay-qrcode-area{min-height:280px;display:flex;align-items:center;justify-content:center}
.qrcode-wrapper{text-align:center}
.pay-qrcode{width:220px;height:220px;border:1px solid #eee;border-radius:8px;padding:8px;background:#fff}
.qrcode-tip{margin-top:12px;font-size:15px;color:#333;font-weight:500}
.qrcode-placeholder{text-align:center;color:#999}
.qrcode-placeholder p{margin-top:12px;font-size:15px;color:#666}
.qrcode-sub{font-size:13px;color:#999 !important;margin-top:4px !important}
.qrcode-contact{font-size:14px;color:#666;margin-top:12px !important}
.qrcode-contact strong{color:#e74c3c}
.bank-transfer-box{text-align:center;width:100%}
.bank-transfer-box h3{font-size:16px;margin-bottom:16px;color:#333}
.bank-info-text{background:#f9f9f9;padding:16px;border-radius:8px;text-align:left;white-space:pre-wrap;font-family:inherit;color:#555;font-size:14px;line-height:1.8;margin-bottom:12px}
.pay-actions{display:flex;gap:12px;justify-content:center;margin-bottom:24px}
.pay-actions form{margin:0}
.pay-notice{background:#f9f9f9;padding:16px 20px;border-radius:8px;font-size:13px;color:#666}
.pay-notice p{margin-bottom:6px;font-weight:600}
.pay-notice ul{padding-left:20px}
.pay-notice li{margin-bottom:4px}

/* Pending payment notice on success page */
.pending-payment-notice{background:#fff8e1;border-left:4px solid #ff9800;padding:20px;border-radius:8px;margin-bottom:20px;text-align:center}
.pending-payment-notice p{margin-bottom:12px;font-size:15px}

/* Order Success */
.order-success{background:#fff;padding:40px;border-radius:12px;max-width:700px;margin:0 auto;text-align:center}
.success-icon{margin-bottom:16px}
.order-success h1{font-size:28px;color:#333;margin-bottom:8px}
.order-id-text{font-size:16px;color:#666;margin-bottom:24px}
.order-id-text strong{color:#e74c3c}
.order-detail-card{text-align:left;background:#fafafa;padding:20px;border-radius:8px;margin-bottom:16px}
.order-detail-card h3{font-size:16px;margin-bottom:12px;color:#333}
.detail-row{display:flex;padding:6px 0;font-size:14px}
.detail-label{color:#999;width:100px;flex-shrink:0}
.detail-value{color:#333;flex:1}
.price-highlight{color:#e74c3c;font-weight:700;font-size:18px}
.simple-table{width:100%;border-collapse:collapse;font-size:14px}
.simple-table th,.simple-table td{padding:8px 10px;text-align:left;border-bottom:1px solid #eee}
.simple-table th{background:#f0f0f0;font-weight:600}
.success-actions{display:flex;gap:12px;justify-content:center;margin-top:20px}

/* Order Query */
.order-query-box{background:#fff;padding:32px;border-radius:10px;margin-bottom:24px;text-align:center}
.query-form{display:flex;gap:12px;max-width:500px;margin:0 auto}
.query-form input{flex:1;padding:12px 16px;border:1px solid #ddd;border-radius:8px;font-size:15px}
.query-form input:focus{outline:none;border-color:#e74c3c}
.order-result{max-width:800px;margin:0 auto}

/* Status tags */
.status-tag{display:inline-block;padding:2px 10px;border-radius:12px;font-size:12px;font-weight:500}
.status-pending{background:#fff3cd;color:#856404}
.status-paid{background:#d1ecf1;color:#0c5460}
.status-shipped{background:#cce5ff;color:#004085}
.status-completed{background:#d4edda;color:#155724}
.status-cancelled{background:#f8d7da;color:#721c24}

/* Empty */
.empty-state{text-align:center;padding:60px 20px;color:#999}
.empty-state p{margin-bottom:12px;font-size:15px}
.empty-tip{font-size:13px !important;color:#bbb}

/* Footer */
.site-footer{background:#2c2c2c;color:#999;padding:40px 0 20px;margin-top:40px}
.footer-content{display:flex;gap:60px;margin-bottom:24px}
.footer-col h4{color:#ddd;margin-bottom:12px;font-size:15px}
.footer-col p{margin-bottom:6px;font-size:13px}
.footer-col a{color:#999}
.footer-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid #444;padding-top:16px;font-size:13px;text-align:center}
.icp{margin-left:12px}

@media(max-width:768px){
    .product-detail{flex-direction:column;padding:20px}
    .product-detail-image{flex:none}
    .checkout-layout{flex-direction:column}
    .checkout-right{flex:none}
    .footer-content{flex-direction:column;gap:24px}
    .main-nav{display:none}
    .banner{padding:32px 24px}
    .banner-text h1{font-size:24px}
    .form-row{flex-direction:column;gap:0}
    .payment-options{flex-direction:column}
    .pay-page{padding:20px}
    .pay-amount{font-size:32px}
    .pay-qrcode{width:180px;height:180px}
}