:root {
  --primary: #1e88e5;
  --primary-dark: #1565c0;
  --bg: #f0f4f8;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #e5e7eb;
  --green: #16a34a;
  --red: #dc2626;
  --orange: #ea580c;
  --purple: #7c3aed;
  --teal: #0d9488;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg); color: var(--text); min-height: 100vh;
}
header.top {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff; padding: 14px 20px; display: flex; align-items: center; gap: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,.12); position: sticky; top: 0; z-index: 10;
}
header.top .logo { font-size: 20px; font-weight: 700; letter-spacing: 1px; }
header.top .sub { opacity: .85; font-size: 13px; }
header.top .spacer { flex: 1; }
header.top .who { font-size: 13px; opacity: .95; }
.container { max-width: 1080px; margin: 0 auto; padding: 18px 16px 60px; }
.card {
  background: var(--card); border-radius: 12px; padding: 16px 18px;
  box-shadow: 0 1px 4px rgba(0,0,0,.06); margin-bottom: 16px;
}
.card h3 { font-size: 16px; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.card h3::before { content: ""; width: 4px; height: 16px; background: var(--primary); border-radius: 2px; }
.grid { display: grid; gap: 14px; }
.grid.cols2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid.cols3 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.grid.cols4 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }

/* 联系入口二维码卡片（小程序 / 公众号 / 店长微信） */
.qr-card { background: #f8fafc; border: 1px solid #eef2f7; border-radius: 10px; padding: 10px; text-align: center; }
.qr-card .qr { width: 120px; height: 120px; margin: 4px auto 6px; display: flex; align-items: center; justify-content: center; background: #fff; border-radius: 8px; }
.qr-card .qr img { width: 110px; height: 110px; display: block; }
.qr-card .qr .textcode { font-size: 12px; color: var(--muted); word-break: break-all; padding: 6px; }
.qr-card .qr-cap { font-size: 13px; font-weight: 600; }
.qr-card .qr-val { font-size: 11.5px; color: var(--muted); word-break: break-all; margin-top: 2px; }
.qr-card.qr-empty { opacity: .7; display: flex; flex-direction: column; justify-content: center; }
label { font-size: 13px; color: var(--muted); display: block; margin-bottom: 4px; }
input, select, textarea {
  width: 100%; padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px;
  font-size: 14px; background: #fff; outline: none;
}
input:focus, select:focus, textarea:focus { border-color: var(--primary); }
.form-row { display: flex; gap: 10px; margin-bottom: 10px; flex-wrap: wrap; }
.form-row > div { flex: 1; min-width: 130px; }
.btn {
  display: inline-block; border: none; border-radius: 8px; padding: 8px 16px;
  font-size: 14px; cursor: pointer; background: var(--primary); color: #fff; transition: .15s;
}
.btn:hover { background: var(--primary-dark); }
.btn.green { background: var(--green); } .btn.green:hover { background: #15803d; }
.btn.red { background: var(--red); } .btn.red:hover { background: #b91c1c; }
.btn.orange { background: var(--orange); }
.btn.ghost { background: #fff; color: var(--primary); border: 1px solid var(--primary); }
.btn.sm { padding: 4px 10px; font-size: 12px; border-radius: 6px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.badge {
  display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 12px; color: #fff;
}
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { padding: 8px 6px; border-bottom: 1px solid var(--border); text-align: left; }
th { color: var(--muted); font-weight: 500; }
.stat-num { font-size: 26px; font-weight: 700; color: var(--primary); }
.stat-card { text-align: center; padding: 14px 8px; }
.stat-card .t { font-size: 13px; color: var(--muted); margin-top: 4px; }
.order-card { border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; margin-bottom: 12px; }
.order-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; flex-wrap: wrap; gap: 6px; }
.order-no { font-family: monospace; font-size: 13px; color: var(--muted); }
.order-items { font-size: 13px; color: var(--text); margin: 6px 0; line-height: 1.7; }
.order-meta { font-size: 12.5px; color: var(--muted); line-height: 1.8; }
.amount { font-weight: 700; color: var(--orange); }
.actions { display: flex; gap: 8px; margin-top: 10px; flex-wrap: wrap; align-items: center; }
.muted { color: var(--muted); font-size: 12.5px; }
.empty { text-align: center; color: var(--muted); padding: 26px 0; font-size: 14px; }
.product-card { display: flex; gap: 12px; align-items: center; }
.product-ico {
  width: 46px; height: 46px; border-radius: 10px; flex: none;
  background: linear-gradient(135deg, #7dd3fc, #38bdf8);
  display: flex; align-items: center; justify-content: center; font-size: 24px;
}
.toast {
  position: fixed; top: 70px; left: 50%; transform: translateX(-50%);
  background: rgba(15,23,42,.88); color: #fff; padding: 10px 18px; border-radius: 8px;
  font-size: 14px; z-index: 99; max-width: 86vw; display: none;
}
.toast.err { background: rgba(185,28,28,.92); }
.tabs { display: flex; gap: 0; margin-bottom: 14px; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; width: fit-content; }
.tabs button { border: none; background: #fff; padding: 7px 20px; cursor: pointer; font-size: 14px; }
.tabs button.on { background: var(--primary); color: #fff; }
a { color: var(--primary); text-decoration: none; }
.section-hide { display: none; }

/* 网站底部备案信息（v2.23）
   《非经营性互联网信息服务备案管理办法》第十三条：主页底部中央标明备案编号，
   并在编号下方链接工信部备案管理系统。此处用固定色值而非 CSS 变量，
   以兼容 style.css 与各页内联 :root 两套不同的变量命名体系。 */
.site-beian {
  margin: 26px auto 18px; max-width: 640px; padding: 0 14px;
  text-align: center; font-size: 11px; line-height: 1.9; color: #94a3b8;
}
.site-beian b { font-weight: 600; color: #64748b; }
.site-beian a { color: #94a3b8; text-decoration: none; border-bottom: 1px dotted #cbd5e1; }
.site-beian a:hover { color: #2563eb; border-bottom-color: #2563eb; }