/* 小店商城 - superniu.shop 极简风 */
*{box-sizing:border-box;margin:0;padding:0}
body{background:#f2f3f5;color:#1a1a1a;font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.6}
a{color:#2563eb;text-decoration:none}
.wrap{max-width:960px;margin:0 auto;padding:0 16px}
/* 顶部导航 */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid #e8e8e8}
.nav-in{max-width:960px;margin:0 auto;padding:10px 16px;display:flex;align-items:center;gap:10px}
.logo{font-weight:800;font-size:19px}
.nav-sp{flex:1}
.btn{display:inline-block;border:none;cursor:pointer;border-radius:999px;padding:9px 20px;font-size:14px;font-weight:600}
.btn-blue{background:#2563eb;color:#fff}
.btn-black{background:#111;color:#fff}
.btn-gray{background:#e9ebee;color:#333}
.btn:disabled{opacity:.5;cursor:default}
/* 公告条 */
.notice{background:#fff7e6;border-bottom:1px solid #f0dfb5;color:#8a6d1a;font-size:13px;padding:9px 16px;text-align:center}
/* 主视觉 */
.hero{background:#fff;border-radius:22px;margin:18px auto 0;padding:38px 24px;text-align:center;box-shadow:0 2px 12px rgba(0,0,0,.04)}
.hero h1{font-size:30px;font-weight:800;margin-bottom:8px}
.hero p{color:#777;font-size:14px}
/* 分类胶囊 */
.tabs{display:flex;gap:10px;justify-content:center;margin:22px 0 6px;flex-wrap:wrap}
.tab{border:1px solid #ddd;background:#fff;border-radius:999px;padding:10px 26px;font-size:15px;font-weight:700;cursor:pointer}
.tab.on{background:#111;color:#fff;border-color:#111}
.search{margin:14px auto;max-width:480px;display:flex;gap:8px}
.search input{flex:1;border:1px solid #ddd;border-radius:999px;padding:10px 18px;font-size:14px;outline:none}
/* 商品网格 */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:16px;margin:18px 0 30px}
.card{background:#fff;border-radius:20px;padding:22px;box-shadow:0 2px 12px rgba(0,0,0,.04)}
.card h3{font-size:17px;font-weight:800;margin-bottom:4px}
.card .cat{font-size:12px;color:#999;margin-bottom:10px}
.card .desc{font-size:13px;color:#666;min-height:40px;margin-bottom:12px}
.card select{width:100%;border:1px solid #ddd;border-radius:10px;padding:9px;margin-bottom:10px;font-size:14px}
.price-row{display:flex;align-items:center;justify-content:space-between;margin:6px 0 12px}
.price{color:#e11d48;font-size:22px;font-weight:800}
.card .btn{width:100%}
/* 内容卡片 */
.section{background:#fff;border-radius:20px;padding:26px;margin-bottom:18px;box-shadow:0 2px 12px rgba(0,0,0,.04)}
.section h2{font-size:19px;font-weight:800;margin-bottom:14px}
.section ol,.section ul{padding-left:20px;color:#555;font-size:14px}
.section li{margin-bottom:8px}
.faq-q{font-weight:700;margin:12px 0 4px}
.faq-a{color:#666;font-size:14px}
/* 弹窗 */
.mask{position:fixed;inset:0;background:rgba(0,0,0,.45);display:none;align-items:center;justify-content:center;z-index:100;padding:16px}
.mask.show{display:flex}
.modal{background:#fff;border-radius:20px;max-width:440px;width:100%;padding:26px;max-height:92vh;overflow:auto}
.modal h3{font-size:18px;font-weight:800;margin-bottom:14px}
.modal label{display:block;font-size:13px;color:#666;margin:12px 0 5px}
.modal input[type=text],.modal input[type=password],.modal textarea,.modal select{width:100%;border:1px solid #ddd;border-radius:10px;padding:10px;font-size:14px}
.modal textarea{min-height:90px;resize:vertical}
.qty{display:flex;align-items:center;gap:12px;margin:6px 0}
.qty button{width:34px;height:34px;border-radius:50%;border:1px solid #ddd;background:#fff;font-size:18px;cursor:pointer}
.qty b{font-size:17px}
.total{font-size:16px;font-weight:800;margin:12px 0}
.total span{color:#e11d48;font-size:22px}
.sn-box{background:#f6f7f9;border-radius:12px;padding:12px;font-size:14px;margin:10px 0;word-break:break-all}
.sn-box b{font-size:16px}
.qr{text-align:center;margin:12px 0}
.qr img{max-width:220px;border-radius:12px;border:1px solid #eee}
.modal .btn{width:100%;margin-top:10px}
.row2{display:flex;gap:10px}
.row2 .btn{flex:1}
.hint{font-size:13px;color:#888;margin-top:10px}
.err{color:#e11d48;font-size:13px;margin-top:8px;min-height:18px}
/* 查询页 */
.query-box{background:#fff;border-radius:20px;padding:30px;margin:24px auto;max-width:560px;box-shadow:0 2px 12px rgba(0,0,0,.04)}
.status{font-size:18px;font-weight:800;margin:10px 0}
.st-待付款{color:#b45309}.st-待确认{color:#2563eb}.st-已发货{color:#16a34a}.st-已完成{color:#666}.st-已取消{color:#999}
.code-box{background:#f0fdf4;border:1px dashed #16a34a;border-radius:12px;padding:14px;font-size:15px;margin:12px 0;word-break:break-all}
/* 后台 */
.admin-tabs{display:flex;gap:8px;margin:18px 0;flex-wrap:wrap}
.atab{border:1px solid #ddd;background:#fff;border-radius:999px;padding:8px 20px;font-size:14px;font-weight:700;cursor:pointer}
.atab.on{background:#111;color:#fff;border-color:#111}
table{width:100%;border-collapse:collapse;font-size:13px;background:#fff;border-radius:14px;overflow:hidden}
th,td{padding:10px 8px;border-bottom:1px solid #f0f0f0;text-align:left;vertical-align:top}
th{background:#fafafa;font-weight:700;color:#555}
.tbl-wrap{overflow-x:auto;background:#fff;border-radius:14px;box-shadow:0 2px 12px rgba(0,0,0,.04)}
.mini{border:none;border-radius:8px;padding:6px 12px;font-size:12px;font-weight:700;cursor:pointer;margin:2px}
.m-blue{background:#2563eb;color:#fff}.m-black{background:#111;color:#fff}.m-gray{background:#e9ebee;color:#333}.m-red{background:#fee2e2;color:#b91c1c}
.warn{background:#fef3c7;border:1px solid #f59e0b;color:#92400e;border-radius:12px;padding:12px 16px;margin:14px 0;font-size:14px}
.login-box{background:#fff;border-radius:20px;padding:34px;margin:60px auto;max-width:380px;box-shadow:0 2px 12px rgba(0,0,0,.04);text-align:center}
.login-box input{width:100%;border:1px solid #ddd;border-radius:10px;padding:11px;margin:10px 0;font-size:15px}
.footer{text-align:center;color:#aaa;font-size:12px;padding:26px 0 40px}
@media(max-width:560px){.hero h1{font-size:24px}.grid{grid-template-columns:1fr}}