/* 小七权益商城 - 全局样式 (简约商务风) */
:root{
  --primary:#1F5FD6; --primary-h:#1a52b8;
  --accent:#FF6B1A; --accent-h:#f05f10;
  --bg:#F5F6F8; --card:#fff;
  --text:#1A1D26; --muted:#8A8F9C; --sub:#4A4F5C;
  --border:#E7E9EE; --border-s:#EEF0F4;
  --green:#16A34A; --red:#DC2626; --radius:8px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{font-family:-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.6}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 16px}
button{cursor:pointer;font-family:inherit}
input,select,textarea{font-family:inherit;font-size:14px}

/* 顶部导航 */
.header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;gap:24px;height:64px}
.logo{display:flex;align-items:center;font-size:20px;font-weight:700;color:var(--text);white-space:nowrap}
.logo img{height:30px;margin-right:8px}
.nav{display:flex;align-items:center;gap:22px;flex:1;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.nav::-webkit-scrollbar{display:none}
.nav a{color:var(--sub);font-size:14px;white-space:nowrap;padding:6px 2px;border-bottom:2px solid transparent}
.nav a:hover{color:var(--primary)}
.nav a.active{color:var(--primary);border-bottom-color:var(--primary)}
.search{display:flex;align-items:center;background:var(--bg);border:1px solid var(--border);border-radius:8px;overflow:hidden}
.search input{border:0;outline:0;background:transparent;padding:8px 12px;width:190px;font-size:13px}
.search button{background:var(--primary);border:0;color:#fff;padding:0 14px;font-size:13px;height:34px}
.header-right{display:flex;align-items:center;gap:16px;white-space:nowrap}
.header-right a{color:var(--sub);font-size:14px}
.header-right a:hover{color:var(--primary)}
.cart-link{position:relative}
.cart-badge{position:absolute;top:-6px;right:-10px;background:var(--accent);color:#fff;font-size:11px;min-width:16px;height:16px;border-radius:8px;display:flex;align-items:center;justify-content:center;padding:0 4px}
.user-name{color:var(--primary)}

/* 主视觉 */
.hero{margin-top:16px}
.hero .banner{position:relative;border-radius:12px;overflow:hidden;background:var(--primary)}
.hero img{width:100%;height:auto;display:block}

/* 区块 */
.section{padding:34px 0 10px}
.section-title{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:18px}
.section-title h2{font-size:20px;font-weight:600}
.section-title .more{color:var(--muted);font-size:13px}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius)}

/* 分类导航 */
.cat-grid{display:grid;grid-template-columns:repeat(11,1fr);gap:8px;padding:16px;text-align:center}
.cat-item{padding:12px 4px;border-radius:var(--radius);color:var(--sub);font-size:13px;transition:background .2s}
.cat-item:hover{background:var(--bg);color:var(--primary)}
.cat-item .ci{width:46px;height:46px;border-radius:12px;background:#EAF1FE;color:var(--primary);font-size:20px;display:flex;align-items:center;justify-content:center;margin:0 auto 8px;font-weight:600}

/* 服务保障 */
.serve-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.serve{padding:20px;display:flex;align-items:center;gap:14px}
.serve .ic{width:44px;height:44px;border-radius:10px;background:#EAF1FE;color:var(--primary);font-size:22px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.serve h4{font-size:15px;font-weight:600}
.serve p{font-size:12px;color:var(--muted);margin-top:2px}

/* 商品卡片 */
.prod-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.prod{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:box-shadow .2s,transform .2s;position:relative}
.prod:hover{box-shadow:0 6px 18px rgba(26,32,54,.08);transform:translateY(-2px)}
.prod .thumb{height:150px;background:#fff;overflow:hidden;position:relative}
.prod .thumb img{width:100%;height:100%;object-fit:cover;display:block}
.prod .tag{position:absolute;top:10px;left:10px;background:var(--accent);color:#fff;font-size:11px;padding:2px 8px;border-radius:6px}
.prod-body{padding:12px}
.prod-title{font-size:14px;font-weight:600;height:40px;line-height:1.4;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.prod-sub{font-size:12px;color:var(--muted);margin-top:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.prod-price{margin-top:10px;display:flex;align-items:baseline;justify-content:space-between}
.price{color:var(--accent);font-size:18px;font-weight:700}
.price i{font-style:normal;font-size:12px;font-weight:600;margin-right:1px}
.origin{color:var(--muted);font-size:12px;text-decoration:line-through}
.prod-btn{margin-top:12px}

/* 按钮 */
.btn{display:inline-block;padding:9px 20px;border-radius:var(--radius);font-size:14px;border:0;text-align:center;transition:background .2s}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-h)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-h)}
.btn-line{background:#fff;color:var(--primary);border:1px solid var(--primary)}
.btn-line:hover{background:#EAF1FE}
.btn-block{display:block;width:100%}
.btn-sm{padding:6px 14px;font-size:13px}
.btn-gray{background:#F0F2F5;color:var(--sub);border:1px solid var(--border)}
.btn-gray:hover{color:var(--text)}
.spec-badge{background:#FFF1E6;color:var(--accent);font-size:12px;padding:2px 8px;border-radius:6px;display:inline-block}

/* 新闻 */
.news-list{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.news-item{padding:18px}
.news-item h4{font-size:15px;font-weight:600;margin-bottom:8px}
.news-item p{font-size:13px;color:var(--muted)}
.news-item time{display:block;font-size:12px;color:var(--muted);margin-top:10px}

/* 页脚 */
.footer{background:#1A1D26;color:#B8BDC7;margin-top:40px}
.footer-inner{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;padding:40px 0}
.footer h5{color:#fff;font-size:15px;margin-bottom:14px}
.footer a{display:block;color:#B8BDC7;font-size:13px;padding:3px 0}
.footer a:hover{color:#fff}
.footer .brand-desc{color:#8A8F9C;font-size:13px;margin-top:10px;line-height:1.8}
.footer-bottom{border-top:1px solid #2A2E3A;padding:16px 0;font-size:12px;color:#8A8F9C;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}

/* 页面头/面包屑 */
.page-head{padding:22px 0 6px}
.page-head h1{font-size:22px;font-weight:600}
.crumbs{font-size:13px;color:var(--muted);margin-top:6px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--primary)}

/* 筛选条 */
.filter-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:14px 0}
.chip{padding:7px 16px;border-radius:20px;border:1px solid var(--border);background:#fff;font-size:13px;color:var(--sub)}
.chip.active,.chip:hover{background:var(--primary);border-color:var(--primary);color:#fff}

/* 详情页 */
.prod-detail{display:grid;grid-template-columns:380px 1fr;gap:28px;padding:20px}
.detail-img{height:340px;background:#fff;border-radius:12px;overflow:hidden}
.detail-img img{width:100%;height:100%;object-fit:cover;display:block}
.detail-info h1{font-size:22px;font-weight:600;line-height:1.4}
.detail-sub{color:var(--muted);margin-top:8px}
.detail-price{background:#FFF7F0;border:1px solid #FFE4D1;border-radius:8px;padding:14px;margin-top:16px}
.detail-price .price{font-size:28px}
.detail-price .origin{font-size:14px;margin-left:8px}
.spec-note{color:var(--muted);font-size:12px;margin-top:6px}
.detail-actions{display:flex;gap:12px;margin-top:22px}
.qty{display:flex;align-items:center;border:1px solid var(--border);border-radius:8px;overflow:hidden}
.qty button{width:34px;height:36px;border:0;background:#fff;font-size:18px;color:var(--sub)}
.qty input{width:48px;border:0;text-align:center;height:36px;outline:0}
.detail-tabs{margin-top:26px;padding:20px}
.detail-tabs h3{font-size:16px;margin-bottom:12px;padding-bottom:10px;border-bottom:1px solid var(--border)}
.detail-tabs .content{color:var(--sub);line-height:1.9}

/* 表格 */
.table{width:100%;border-collapse:collapse;background:#fff}
.table th{background:#F7F8FA;color:var(--sub);font-size:13px;font-weight:600;padding:12px;text-align:left;border-bottom:1px solid var(--border)}
.table td{padding:12px;border-bottom:1px solid var(--border-s);font-size:14px;vertical-align:middle}
.table tr:last-child td{border-bottom:0}

/* 状态徽章 */
.badge{display:inline-block;padding:3px 10px;border-radius:6px;font-size:12px}
.b-pending{background:#FFF4E5;color:#D97706}
.b-paid{background:#E7F6EC;color:#15803D}
.b-done{background:#EAF1FE;color:#1F5FD6}
.b-cancel,.b-refund{background:#FEF2F2;color:#B91C1C}
.b-refunding{background:#FDF2D8;color:#B45309}

/* 购物车 */
.cart-table .prod-cell{display:flex;align-items:center;gap:12px}
.cart-table .prod-cell .thumb{width:56px;height:56px;border-radius:8px;overflow:hidden;flex-shrink:0}
.cart-table .prod-cell .thumb img{width:100%;height:100%;object-fit:cover;display:block}
.summary{background:#fff;border:1px solid var(--border);border-radius:8px;padding:20px}
.summary .row{display:flex;justify-content:space-between;padding:6px 0;color:var(--sub);font-size:14px}
.summary .total{color:var(--accent);font-size:20px;font-weight:700}

/* 结算 */
.checkout-grid{display:grid;grid-template-columns:1fr 360px;gap:20px;align-items:start}
.pay-opt{border:1px solid var(--border);border-radius:8px;padding:14px;margin-bottom:10px;display:flex;align-items:center;gap:10px;cursor:pointer}
.pay-opt.sel{border-color:var(--primary);background:#F6F9FF}
.pay-opt .dot{width:18px;height:18px;border-radius:50%;border:2px solid #CBD0D8;flex-shrink:0}
.pay-opt.sel .dot{border-color:var(--primary);background:var(--primary);box-shadow:inset 0 0 0 3px #fff}
.mini-row{display:flex;justify-content:space-between;align-items:center;padding:8px 0;border-bottom:1px dashed var(--border-s)}
.mini-row b{color:var(--accent)}
.tip{font-size:12px;color:var(--muted);margin-top:8px}


/* 表单页 */
.auth{max-width:400px;margin:50px auto}
.auth .card{padding:30px}
.auth h1{font-size:20px;margin-bottom:20px;text-align:center}
.form-item{margin-bottom:16px}
.form-item label{display:block;font-size:13px;color:var(--sub);margin-bottom:6px}
.form-item input,.form-item textarea,.form-item select{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;outline:0;background:#fff}
.form-item input:focus,.form-item textarea:focus,.form-item select:focus{border-color:var(--primary)}
.errbox{background:#FEF2F2;color:#B91C1C;border:1px solid #FECACA;border-radius:8px;padding:10px;margin-bottom:14px;font-size:13px}
.form-tip{text-align:center;font-size:13px;color:var(--muted);margin-top:14px}
.form-tip a{color:var(--primary)}

/* 用户中心 */
.uc-wrap{display:grid;grid-template-columns:220px 1fr;gap:20px;align-items:start;margin-top:20px}
.uc-menu{background:#fff;border:1px solid var(--border);border-radius:8px;overflow:hidden}
.uc-menu a{display:block;padding:13px 18px;color:var(--sub);border-bottom:1px solid var(--border-s);font-size:14px}
.uc-menu a:last-child{border-bottom:0}
.uc-menu a:hover,.uc-menu a.active{background:#F6F9FF;color:var(--primary)}
.uc-panel{background:#fff;border:1px solid var(--border);border-radius:8px;padding:22px}
.uc-panel h2{font-size:18px;margin-bottom:18px}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:20px}
.stat{background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:16px;text-align:center}
.stat .num{font-size:22px;font-weight:700;color:var(--primary)}
.stat .lbl{font-size:12px;color:var(--muted);margin-top:4px}

/* 优惠券卡片 */
.coupon-card{display:flex;align-items:center;border:1px solid var(--border);border-radius:8px;overflow:hidden;margin-bottom:12px;background:#fff}
.coupon-left{width:150px;text-align:center;background:#EAF1FE;color:var(--primary);padding:18px;flex-shrink:0}
.coupon-left .amt{font-size:24px;font-weight:700}
.coupon-left .amt i{font-style:normal;font-size:13px}
.coupon-left .cond{font-size:12px}
.coupon-mid{flex:1;padding:14px 16px}
.coupon-mid h4{font-size:15px;font-weight:600}
.coupon-mid .meta{font-size:12px;color:var(--muted);margin-top:6px}
.coupon-right{padding:14px}
.coupon-right .btn{white-space:nowrap}

/* 签到 */
.sign-box{text-align:center;padding:30px}
.sign-box .date{font-size:15px;color:var(--sub)}
.sign-box .btn{margin-top:20px}
.sign-record{margin-top:20px;border-top:1px solid var(--border-s);padding-top:16px;color:var(--muted);font-size:13px}

/* 空状态 */
.empty{text-align:center;padding:50px;color:var(--muted)}
.empty .e{font-size:44px;margin-bottom:12px}

/* 响应式 */
@media (max-width:1024px){
  .prod-grid{grid-template-columns:repeat(4,1fr)}
  .news-list{grid-template-columns:repeat(2,1fr)}
  .cat-grid{grid-template-columns:repeat(6,1fr)}
  .checkout-grid{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .header-inner{flex-wrap:wrap;height:auto;padding:10px 0;gap:12px}
  .search{order:5;width:100%}
  .search input{flex:1;width:auto}
  .nav{flex:auto;order:4;width:100%;overflow-x:auto;padding-bottom:2px}
  .prod-grid{grid-template-columns:repeat(3,1fr)}
  .serve-grid{grid-template-columns:repeat(2,1fr)}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .uc-wrap{grid-template-columns:1fr}
  .prod-detail{grid-template-columns:1fr;padding:16px}
  .detail-img{height:220px}
  .cat-grid{grid-template-columns:repeat(4,1fr)}
  .hero .banner{border-radius:0}
  .hero{margin-top:0}
}
@media (max-width:480px){
  .prod-grid{grid-template-columns:repeat(2,1fr)}
  .prod .thumb{height:120px}
  .news-list{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr}
  .coupon-left{width:110px}
}

/* 商品详情 - 多图轮播 */
.gallery{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;height:100%}
.gallery::-webkit-scrollbar{display:none}
.gallery img{min-width:100%;height:100%;object-fit:cover;scroll-snap-align:center;display:block}
.detail-img img{width:100%;height:100%;object-fit:cover;display:block}

/* 规格选择 */
.spec-wrap{margin-top:16px}
.spec-list{display:flex;flex-wrap:wrap;gap:8px}
.spec-chip{padding:8px 16px;border-radius:8px;border:1px solid var(--border);background:#fff;font-size:13px;color:var(--sub);cursor:pointer}
.spec-chip.sel{border-color:var(--primary);color:var(--primary);background:#F6F9FF}

/* 底部操作栏 */
.prod-actionbar{position:fixed;left:0;right:0;bottom:0;z-index:60;background:#fff;border-top:1px solid var(--border);display:flex;align-items:center;gap:12px;padding:10px 16px;max-width:1200px;margin:0 auto;box-shadow:0 -2px 10px rgba(0,0,0,.03)}
.ab-btn{display:flex;flex-direction:column;align-items:center;font-size:11px;color:var(--sub);background:none;border:0;width:56px;cursor:pointer}
.ab-btn .ab-ic{font-size:22px;line-height:1}
.ab-buy{flex:1;padding:12px 0}

/* 规格弹层 */
.sheet-mask{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:70;display:none}
.sheet{position:fixed;left:0;right:0;bottom:0;z-index:80;background:#fff;border-radius:16px 16px 0 0;padding:18px 18px 16px;transform:translateY(100%);transition:transform .25s ease;max-width:1200px;margin:0 auto}
.sheet-head{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:14px}
.sheet-close{border:0;background:none;font-size:18px;color:var(--muted);cursor:pointer}
.sheet-body{margin-bottom:14px}
.sheet-foot .btn{width:100%}

/* 公告跑马灯 */
.marquee{display:flex;align-items:center;gap:8px;background:#fff;border-bottom:1px solid var(--border-s);padding:8px 16px;font-size:13px;color:var(--sub);overflow:hidden}
.marquee .m-ic{color:var(--accent);flex-shrink:0}
.marquee .m-track{white-space:nowrap;overflow:hidden}
.marquee .m-track span{display:inline-block;padding-right:40px}

/* 轮播点 */
.hero{position:relative}
.hero .dots{position:absolute;bottom:12px;left:0;right:0;display:flex;justify-content:center;gap:6px}
.hero .dots i{width:6px;height:6px;border-radius:50%;background:rgba(255,255,255,.6)}
.hero .dots i.on{background:#fff;width:16px;border-radius:3px}

/* 顶部定位栏 */
.topbar-mini{display:flex;align-items:center;justify-content:space-between;padding:8px 0 0;font-size:12px;color:var(--muted)}
.topbar-mini a{color:var(--primary)}

/* 底部 Tab 栏（移动端常驻） */
.tabbar{position:fixed;left:0;right:0;bottom:0;z-index:65;background:#fff;border-top:1px solid var(--border);display:none;justify-content:space-around;padding:6px 0 8px}
.tabbar a{display:flex;flex-direction:column;align-items:center;font-size:11px;color:var(--muted);text-decoration:none}
.tabbar a.on{color:var(--primary)}
.tabbar a .t-ic{font-size:22px;line-height:1;position:relative}
.tabbar a .t-num{position:absolute;top:-4px;right:-10px;background:var(--accent);color:#fff;font-size:10px;min-width:15px;height:15px;border-radius:8px;display:flex;align-items:center;justify-content:center;padding:0 3px}
@media (max-width:768px){
  .tabbar{display:flex}
  body{padding-bottom:62px}
  .prod-actionbar{max-width:none}
  .sheet{max-width:none}
}




/* 运营广告位 */
.ad-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.ad-item{display:block;border-radius:12px;overflow:hidden}
.ad-item img{width:100%;height:auto;display:block}
@media (max-width:768px){ .ad-grid{grid-template-columns:1fr} }

/* 分类圆形图标 */
.cat-item .ci{border-radius:50%}


/* 排序栏 */
.sort-bar{display:flex;gap:10px;margin-top:12px;padding-top:12px;border-top:1px solid var(--border-s)}