/* WEB 端通用样式 */
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;background:#f5f5f5;color:#333;font-size:14px;line-height:1.5}
a{color:#333;text-decoration:none}
a:hover{color:#e1251b}
.container{width:1200px;margin:0 auto}
.clearfix:after{content:'';display:block;clear:both}

/* 顶部 */
.topbar{background:#f7f7f7;border-bottom:1px solid #eee;font-size:12px;color:#999}
.topbar .container{display:flex;justify-content:space-between;height:32px;align-items:center}
.topbar a{color:#999;margin:0 8px}

/* 头部 */
.header{background:#fff;padding:15px 0}
.header .container{display:flex;align-items:center;justify-content:space-between}
.logo{font-size:26px;font-weight:bold;color:#e1251b;display:flex;align-items:center;gap:10px}
.logo .logo-img{height:42px;width:auto;display:block}
.search{display:flex;width:500px}
.search input{flex:1;height:38px;border:2px solid #e1251b;padding:0 12px;font-size:14px;border-radius:4px 0 0 4px;outline:none}
.search button{width:80px;background:#e1251b;color:#fff;border:none;cursor:pointer;font-size:14px;border-radius:0 4px 4px 0}
.header-right a{margin-left:20px;color:#666}

/* 导航 */
.nav{background:#e1251b;color:#fff;position:sticky;top:0;z-index:100;box-shadow:0 2px 8px rgba(0,0,0,.15)}
.nav .container{display:flex}
.nav a{color:#fff;padding:12px 24px;font-size:15px;display:block;transition:background .2s}
.nav a:hover{background:#c81623}
.nav a.active{background:#c81623}

/* 轮播 */
.banner{height:380px;background:#eee;margin-top:15px;position:relative;overflow:hidden;border-radius:8px}
.banner-slides{width:100%;height:100%;position:relative}
.banner-slide{position:absolute;top:0;left:0;width:100%;height:100%;opacity:0;transition:opacity .6s ease}
.banner-slide.active{opacity:1}
.banner-slide img{width:100%;height:100%;object-fit:cover;display:block}
.banner-arrow{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;background:rgba(0,0,0,.35);color:#fff;font-size:28px;display:flex;align-items:center;justify-content:center;cursor:pointer;border-radius:50%;user-select:none;transition:background .2s}
.banner-arrow:hover{background:rgba(0,0,0,.6)}
.banner-prev{left:16px}
.banner-next{right:16px}
.banner-dots{position:absolute;bottom:16px;left:50%;transform:translateX(-50%);display:flex;gap:8px}
.banner-dot{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.5);cursor:pointer;transition:all .2s}
.banner-dot.active{background:#fff;width:28px;border-radius:5px}

/* 分类入口 */
.category-entries{display:flex;justify-content:space-around;background:#fff;padding:20px;border-radius:8px;margin-top:15px}
.category-entry{text-align:center;width:100px}
.category-entry .icon{width:60px;height:60px;background:linear-gradient(135deg,#ff6b6b,#e1251b);border-radius:50%;margin:0 auto 8px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:24px}
.category-entry .name{font-size:13px;color:#666}

/* 商品网格 */
.section{margin-top:20px}
.section-title{font-size:18px;font-weight:bold;margin-bottom:12px;padding-left:12px;border-left:4px solid #e1251b}
.goods-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.goods-card{background:#fff;border-radius:8px;overflow:hidden;transition:transform .2s,box-shadow .2s;border:1px solid #f0f0f0}
.goods-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px rgba(225,37,27,.12);border-color:#e1251b}
.goods-card img{width:100%;height:220px;object-fit:cover;background:#f0f0f0;transition:transform .3s}
.goods-card:hover img{transform:scale(1.05)}
.goods-card .info{padding:10px 12px}
.goods-card .name{font-size:14px;line-height:1.4;height:40px;overflow:hidden}
.goods-card .price{color:#e1251b;font-size:18px;font-weight:bold;margin-top:6px}
.goods-card .market-price{color:#999;text-decoration:line-through;font-size:12px;margin-left:6px}
.goods-card .sales{color:#999;font-size:12px;margin-top:4px}

/* 优惠券卡片 */
.coupon-list{display:flex;flex-wrap:wrap;gap:12px}
.coupon-card{display:flex;align-items:center;padding:14px 16px;border:2px solid #eee;border-radius:8px;cursor:pointer;transition:all .2s;min-width:240px;background:#fafafa}
.coupon-card:hover{border-color:#ffb3b3}
.coupon-card.selected{border-color:#e1251b;background:#fff5f5}
.coupon-card input[type=radio]{margin-right:10px}
.coupon-info{flex:1}
.coupon-amount{font-size:22px;font-weight:bold;color:#e1251b}
.coupon-desc{font-size:13px;color:#333;margin-top:2px}
.coupon-min{font-size:12px;color:#999;margin-top:2px}
.coupon-save{font-size:13px;color:#e1251b;font-weight:bold;background:#fff;border:1px solid #e1251b;padding:4px 10px;border-radius:12px}

/* 筛选栏 */
.filter-bar{background:#fff;padding:15px;border-radius:8px;margin-bottom:15px}
.filter-row{display:flex;margin-bottom:10px;align-items:center}
.filter-row:last-child{margin-bottom:0}
.filter-label{width:70px;color:#999;font-size:13px}
.filter-options a{display:inline-block;padding:4px 12px;margin-right:8px;border-radius:4px;color:#666;font-size:13px}
.filter-options a.active{background:#e1251b;color:#fff}

/* 排序栏 */
.sort-bar{background:#fff;padding:12px 15px;border-radius:8px;margin-bottom:15px;display:flex;gap:16px}
.sort-bar a{color:#666;padding:4px 10px}
.sort-bar a.active{color:#e1251b;font-weight:bold}

/* 商品详情 */
.detail-wrap{display:flex;background:#fff;padding:20px;border-radius:8px;margin-top:15px}
.detail-images{width:420px}
.detail-images .main-img{width:420px;height:420px;background:#f0f0f0;border-radius:8px;overflow:hidden}
.detail-images .main-img img{width:100%;height:100%;object-fit:cover}
.detail-thumb{display:flex;margin-top:10px;gap:8px}
.detail-thumb img{width:72px;height:72px;object-fit:cover;border-radius:4px;border:2px solid transparent;cursor:pointer}
.detail-thumb img.active{border-color:#e1251b}
.detail-info{flex:1;margin-left:30px}
.detail-info h1{font-size:22px;margin-bottom:8px}
.detail-info .subtitle{color:#999;margin-bottom:16px}
.detail-info .price-box{background:#fff5f5;padding:16px;border-radius:8px;margin-bottom:16px}
.detail-info .price-box .price{color:#e1251b;font-size:32px;font-weight:bold}
.detail-info .price-box .market{color:#999;text-decoration:line-through;margin-left:10px}
.sku-group{margin-bottom:16px}
.sku-group .label{color:#999;margin-bottom:8px}
.sku-group .options{display:flex;flex-wrap:wrap;gap:8px}
.sku-option{padding:8px 16px;border:1px solid #ddd;border-radius:4px;cursor:pointer;background:#fff}
.sku-option.active{border-color:#e1251b;color:#e1251b}
.sku-option.disabled{color:#ccc;cursor:not-allowed}
.qty-box{display:flex;align-items:center;margin-bottom:16px}
.qty-box input{width:60px;text-align:center;height:36px;border:1px solid #ddd}
.qty-box button{width:36px;height:36px;background:#f5f5f5;border:1px solid #ddd;cursor:pointer}
.btn{display:inline-block;padding:12px 32px;border-radius:6px;cursor:pointer;border:none;font-size:15px;transition:opacity .2s}
.btn:hover{opacity:.85}
.btn-primary{background:#e1251b;color:#fff}
.btn-secondary{background:#ff9900;color:#fff}
.btn-outline{background:#fff;color:#e1251b;border:1px solid #e1251b}

/* 购物车 */
.cart-table{width:100%;background:#fff;border-radius:8px;overflow:hidden;margin-top:15px}
.cart-table th{background:#f7f7f7;padding:14px;text-align:center;font-weight:normal;color:#999}
.cart-table td{padding:14px;text-align:center;border-top:1px solid #f0f0f0}
.cart-table .goods-info{display:flex;align-items:center;text-align:left}
.cart-table .goods-info img{width:80px;height:80px;object-fit:cover;border-radius:4px;margin-right:12px}
.cart-summary{background:#fff;padding:20px;border-radius:8px;margin-top:15px;text-align:right}
.cart-summary .total{font-size:18px}
.cart-summary .total b{color:#e1251b;font-size:24px}

/* 订单 */
.order-card{background:#fff;border-radius:8px;margin-bottom:15px;overflow:hidden}
.order-card .header-row{background:#f7f7f7;padding:12px 16px;display:flex;justify-content:space-between}
.order-card .body{padding:16px}
.order-goods-item{display:flex;margin-bottom:12px;align-items:center}
.order-goods-item img{width:60px;height:60px;object-fit:cover;border-radius:4px;margin-right:12px}
.order-status{color:#e1251b;font-weight:bold}

/* 分页 */
.pagination{display:flex;justify-content:center;gap:8px;margin:20px 0}
.pagination a,.pagination span{padding:8px 14px;background:#fff;border-radius:4px;color:#666}
.pagination .current{background:#e1251b;color:#fff}

/* 底部 */
.footer{background:#2c2c2c;color:#999;padding:40px 0;margin-top:40px;text-align:center}
.footer a{color:#999;margin:0 12px}

/* 用户中心 */
.center-layout{display:flex;gap:20px;margin-top:15px}
.center-side{width:200px;background:#fff;border-radius:8px;padding:16px;height:fit-content}
.center-side h3{font-size:16px;margin-bottom:12px;padding-bottom:12px;border-bottom:1px solid #eee}
.center-side a{display:block;padding:10px 12px;color:#666;border-radius:4px;margin-bottom:4px}
.center-side a:hover,.center-side a.active{background:#f5f5f5;color:#e1251b}
.center-main{flex:1;background:#fff;border-radius:8px;padding:20px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:20px}
.stats-item{background:#f7f7f7;padding:20px;border-radius:8px;text-align:center}
.stats-item .num{font-size:28px;color:#e1251b;font-weight:bold}
.stats-item .label{color:#999;margin-top:4px}

/* 表单 */
.form-item{margin-bottom:16px}
.form-item label{display:block;margin-bottom:6px;color:#666}
.form-item input,.form-item select,.form-item textarea{width:100%;padding:10px;border:1px solid #ddd;border-radius:4px;font-size:14px;outline:none}
.form-item input:focus{border-color:#e1251b}

/* 优惠券 */
.coupon-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:15px}
.coupon-card{background:linear-gradient(135deg,#ff6b6b,#e1251b);color:#fff;border-radius:8px;padding:16px;position:relative}
.coupon-card .amount{font-size:28px;font-weight:bold}
.coupon-card .condition{font-size:12px;opacity:.9;margin-top:4px}
.coupon-card .name{margin-top:8px;font-size:14px}
.coupon-card button{background:#fff;color:#e1251b;border:none;padding:6px 16px;border-radius:20px;margin-top:10px;cursor:pointer}