:root{
  --brand:#3b6ef6; --brand-2:#6f4cf6; --ok:#12b76a; --warn:#f79009; --err:#f04438;
  --bg:#f5f7fb; --card:#fff; --text:#101828; --muted:#667085; --line:#e8ecf3;
  --radius:14px; --shadow:0 6px 24px rgba(16,24,40,.06);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","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%}
.wrap{max-width:1180px;margin:0 auto;padding:0 18px}
.hide{display:none!important}

/* ---------- 顶部导航 ---------- */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.86);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;gap:22px;height:64px}
.logo{display:flex;align-items:center;gap:9px;font-weight:700;font-size:17px;letter-spacing:.3px}
.logo-mark{width:32px;height:32px;border-radius:9px;background:linear-gradient(135deg,var(--brand),var(--brand-2));display:grid;place-items:center;color:#fff;font-size:15px;font-weight:800}
.nav-links{display:flex;gap:20px;margin-left:8px}
.nav-links a{color:var(--muted);font-weight:500;padding:6px 2px;border-bottom:2px solid transparent}
.nav-links a:hover,.nav-links a.on{color:var(--brand);border-color:var(--brand)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:10px}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;border:none;cursor:pointer;
  padding:10px 18px;border-radius:10px;font-size:14px;font-weight:600;transition:.16s;background:#eef2f8;color:#344054}
.btn:hover{filter:brightness(.97)}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 6px 16px rgba(59,110,246,.24)}
.btn-primary:hover{transform:translateY(-1px)}
.btn-ok{background:var(--ok);color:#fff}
.btn-err{background:var(--err);color:#fff}
.btn-ghost{background:#fff;border:1px solid var(--line);color:#344054}
.btn-sm{padding:6px 12px;font-size:13px;border-radius:8px}
.btn[disabled]{opacity:.55;cursor:not-allowed}

/* ---------- 卡片 / 表单 ---------- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.pad{padding:20px}
.field{margin-bottom:16px}
.field label{display:block;font-weight:600;margin-bottom:7px;font-size:13px;color:#344054}
.field .hint{color:var(--muted);font-size:12px;margin-top:5px}
.input,select.input,textarea.input{width:100%;padding:10px 13px;border:1px solid #d7dee9;border-radius:10px;font-size:14px;background:#fff;outline:none;transition:.15s;font-family:inherit}
.input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(59,110,246,.12)}
.row{display:flex;gap:14px;flex-wrap:wrap}
.row>*{flex:1;min-width:220px}

/* ---------- 首页 Hero ---------- */
.hero{margin:26px 0 8px;border-radius:20px;padding:44px 38px;color:#fff;position:relative;overflow:hidden;
  background:linear-gradient(120deg,#2b4cf0 0%,#5b3ff0 48%,#8a3ff0 100%)}
.hero:after{content:"";position:absolute;right:-60px;top:-70px;width:300px;height:300px;border-radius:50%;background:rgba(255,255,255,.12)}
.hero h1{margin:0 0 10px;font-size:30px;letter-spacing:.5px}
.hero p{margin:0;opacity:.9;max-width:640px}
.hero-tags{display:flex;gap:10px;margin-top:22px;flex-wrap:wrap}
.hero-tags span{background:rgba(255,255,255,.16);padding:6px 13px;border-radius:20px;font-size:13px;backdrop-filter:blur(4px)}

/* ---------- 商品网格 ---------- */
.toolbar{display:flex;gap:12px;align-items:center;margin:24px 0 16px;flex-wrap:wrap}
.toolbar h2{margin:0;font-size:18px}
.toolbar .search{margin-left:auto;display:flex;gap:8px}
.toolbar .search .input{width:240px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(255px,1fr));gap:16px;margin-bottom:40px}
.goods{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;display:flex;flex-direction:column;transition:.18s;box-shadow:var(--shadow)}
.goods:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(16,24,40,.1);border-color:#d4dffb}
.goods .name{font-weight:600;font-size:14.5px;line-height:1.5;min-height:44px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.goods .meta{display:flex;align-items:center;gap:8px;margin:12px 0 14px;color:var(--muted);font-size:12.5px}
.goods .price{margin-top:auto;display:flex;align-items:baseline;justify-content:space-between}
.goods .price b{color:#f04438;font-size:21px}
.goods .price b i{font-size:13px;font-style:normal;font-weight:600}
.tag{display:inline-block;padding:2px 8px;border-radius:6px;font-size:12px;background:#eef3ff;color:#3b6ef6}
.tag.ok{background:#e8faf1;color:#0f9d58}
.tag.err{background:#feecea;color:#d92d20}
.tag.warn{background:#fff5e6;color:#b54708}
.tag.muted{background:#f2f4f7;color:#667085}
.tag.info{background:#eaf2ff;color:#175cd3}

/* ---------- 表格 ---------- */
table{width:100%;border-collapse:collapse;font-size:13.5px}
th,td{padding:11px 12px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle}
th{color:var(--muted);font-weight:600;background:#fafbfd;white-space:nowrap;font-size:12.5px}
tbody tr:hover{background:#fafcff}
.table-wrap{overflow:auto;border-radius:var(--radius)}

/* ---------- 支付 / 订单 ---------- */
.paybox{max-width:720px;margin:30px auto}
.pay-types{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin:6px 0 20px}
.pay-type{border:2px solid var(--line);border-radius:12px;padding:14px;cursor:pointer;display:flex;align-items:center;gap:10px;transition:.15s;background:#fff}
.pay-type:hover{border-color:#c7d7fe}
.pay-type.on{border-color:var(--brand);background:#f5f8ff;box-shadow:0 0 0 3px rgba(59,110,246,.1)}
.pay-type .ic{width:32px;height:32px;border-radius:8px;display:grid;place-items:center;color:#fff;font-weight:700;font-size:14px}
.order-head{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:14px;margin-bottom:16px}
.kv{display:grid;grid-template-columns:110px 1fr;gap:9px 14px;font-size:13.5px}
.kv .k{color:var(--muted)}
.cards{background:#0f172a;color:#7ff0b3;border-radius:12px;padding:16px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px;white-space:pre-wrap;word-break:break-all;line-height:1.8;position:relative}
.copy{position:absolute;right:10px;top:10px}

/* ---------- 提示 ---------- */
.flash{padding:11px 15px;border-radius:10px;margin-bottom:14px;font-size:13.5px;border:1px solid transparent}
.flash.ok{background:#e8faf1;color:#046c4e;border-color:#b7f0d3}
.flash.err{background:#feecea;color:#b42318;border-color:#fbc9c4}
.flash.warn{background:#fff8e6;color:#93370d;border-color:#fde3a7}
.empty{text-align:center;color:var(--muted);padding:56px 0}
.footer{color:var(--muted);text-align:center;font-size:12.5px;padding:26px 0 34px;border-top:1px solid var(--line);margin-top:20px}

/* ---------- 管理后台布局 ---------- */
.admin{display:flex;min-height:100vh;background:#f2f5f9}
.side{width:228px;background:#101828;color:#c7d0e0;padding:18px 14px;flex-shrink:0;position:sticky;top:0;height:100vh}
.side .logo{color:#fff;margin:6px 6px 22px}
.side nav{display:flex;flex-direction:column;gap:3px}
.side nav a{display:flex;align-items:center;gap:10px;padding:10px 13px;border-radius:9px;color:#aab4c6;font-weight:500}
.side nav a:hover{background:#1b2537;color:#fff}
.side nav a.on{background:linear-gradient(135deg,#3b6ef6,#6f4cf6);color:#fff;box-shadow:0 6px 16px rgba(59,110,246,.3)}
.side .side-foot{margin-top:auto;font-size:12px;color:#667085}
.main{flex:1;min-width:0;padding:22px 26px 60px}
.topbar{display:flex;align-items:center;gap:14px;margin-bottom:20px}
.topbar h1{font-size:20px;margin:0}
.topbar .sp{margin-left:auto;display:flex;gap:9px;align-items:center}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px;margin-bottom:20px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:17px 18px;box-shadow:var(--shadow)}
.stat .lb{color:var(--muted);font-size:12.5px}
.stat .val{font-size:25px;font-weight:700;margin-top:6px}
.stat .val small{font-size:13px;font-weight:500;color:var(--muted)}
.login-wrap{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#1b2a5c,#3b1b5c)}
.login-card{width:390px;background:#fff;border-radius:18px;padding:34px;box-shadow:0 24px 60px rgba(0,0,0,.3)}
.login-card h2{margin:0 0 6px;font-size:21px}
.login-card p{margin:0 0 22px;color:var(--muted);font-size:13px}
.pager{display:flex;gap:8px;align-items:center;justify-content:flex-end;margin-top:14px}
.pager a,.pager span{padding:6px 12px;border-radius:8px;border:1px solid var(--line);background:#fff;font-size:13px}
.pager .cur{background:var(--brand);color:#fff;border-color:var(--brand)}
.chip{display:inline-flex;align-items:center;gap:6px;padding:5px 11px;border-radius:20px;font-size:12.5px;background:#fff;border:1px solid var(--line)}
@media(max-width:860px){
  .hero{padding:30px 22px}.hero h1{font-size:23px}
  .admin{flex-direction:column}.side{width:100%;height:auto;position:relative}
  .side nav{flex-direction:row;overflow:auto}.main{padding:16px}
  .nav-links{display:none}
}