/* 多店通设计系统 — 柔和蓝，延续 kitwand 系产品视觉 */
:root {
  --blue: #2f6fe4;
  --blue-dark: #2258bd;
  --blue-bg: #eef3fd;
  --ink: #1c2433;
  --muted: #8a94a6;
  --line: #e4e9f2;
  --bg: #f6f8fb;
  --card: #ffffff;
  --green: #1ba97c;
  --red: #d9534f;
  --amber: #b98413;
  --radius: 12px;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 15px/1.65 -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
}
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

.nav {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; gap: 18px;
  padding: 10px 22px; background: rgba(255,255,255,.86);
  backdrop-filter: blur(10px); border-bottom: 1px solid var(--line);
}
.nav .brand { font-weight: 700; font-size: 17px; color: var(--ink); display: flex; align-items: center; gap: 8px; }
.nav .brand:hover { text-decoration: none; }
.nav .brand .dot { width: 10px; height: 10px; border-radius: 3px; background: var(--blue); display: inline-block; }
.nav a.item { color: #4a5568; padding: 4px 8px; border-radius: 8px; }
.nav a.item:hover { background: var(--blue-bg); text-decoration: none; }
.nav a.item.active { color: var(--blue); font-weight: 600; }
.nav .spacer { flex: 1; }
.nav .who { color: var(--muted); font-size: 13px; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 26px 20px 60px; }
h1 { font-size: 22px; margin: 0 0 6px; }
h2 { font-size: 17px; margin: 26px 0 12px; }
.sub { color: var(--muted); margin: 0 0 20px; }

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px 18px;
}
.card .k { color: var(--muted); font-size: 13px; }
.card .v { font-size: 24px; font-weight: 700; margin-top: 2px; }
.card .v small { font-size: 13px; font-weight: 400; color: var(--muted); }
.card .t { font-size: 13px; margin-top: 4px; color: var(--muted); }
.up { color: var(--green); } .down { color: var(--red); }

.panel { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; margin-top: 16px; }
.panel h2 { margin-top: 0; }
.chart { width: 100%; height: auto; display: block; }

.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th { text-align: left; color: var(--muted); font-weight: 500; padding: 8px 10px; border-bottom: 1px solid var(--line); white-space: nowrap; }
.table td { padding: 9px 10px; border-bottom: 1px solid #f0f3f8; }
.table tr:last-child td { border-bottom: none; }
.table .num { text-align: right; font-variant-numeric: tabular-nums; }
.table-scroll { overflow-x: auto; }

.btn {
  display: inline-block; border: none; cursor: pointer; border-radius: 9px;
  background: var(--blue); color: #fff; padding: 9px 18px; font-size: 14px; font-weight: 600;
}
.btn:hover { background: var(--blue-dark); text-decoration: none; }
.btn.ghost { background: transparent; color: var(--blue); border: 1px solid var(--blue); }
.btn.ghost:hover { background: var(--blue-bg); }
.btn.sm { padding: 5px 12px; font-size: 13px; font-weight: 500; }
.btn.danger { background: transparent; color: var(--red); border: 1px solid #eec7c6; }
.btn.danger:hover { background: #fdf3f2; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }

.form-card { max-width: 560px; }
label.f { display: block; margin: 14px 0 4px; font-size: 14px; font-weight: 600; }
label.f .hint { font-weight: 400; color: var(--muted); }
input[type=text], input[type=email], input[type=password], input[type=number], select, textarea {
  width: 100%; padding: 9px 12px; border: 1px solid #cfd8e6; border-radius: 9px;
  font-size: 14px; background: #fff; color: var(--ink);
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--blue-bg); border-color: var(--blue); }
.inline-form { display: inline; }

.alert { border-radius: 10px; padding: 11px 14px; margin: 0 0 14px; font-size: 14px; }
.alert.ok { background: #e9f8f2; color: #14684d; border: 1px solid #bfe8d9; }
.alert.err { background: #fdf1f0; color: #9c3835; border: 1px solid #f2cfce; }
.alert.info { background: var(--blue-bg); color: #23508f; border: 1px solid #cdddf8; }
.alert.warn { background: #fdf7e8; color: #7a5a10; border: 1px solid #efdfb3; }

.badge { display: inline-block; font-size: 12px; padding: 2px 9px; border-radius: 999px; }
.badge.ok { background: #e9f8f2; color: var(--green); }
.badge.err { background: #fdf1f0; color: var(--red); }
.badge.run { background: var(--blue-bg); color: var(--blue); }
.badge.mut { background: #eef1f6; color: var(--muted); }

.tabs { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
.tabs a { padding: 7px 16px; border-radius: 9px; border: 1px solid var(--line); color: #4a5568; background: #fff; }
.tabs a.active { border-color: var(--blue); color: var(--blue); font-weight: 600; background: var(--blue-bg); }
.tabs a:hover { text-decoration: none; border-color: var(--blue); }

.steps { margin: 0; padding-left: 20px; }
.steps li { margin: 7px 0; }
.steps code { background: #f0f3f8; border-radius: 5px; padding: 1px 6px; font-size: 13px; }

.shop-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.shop-head .grow { flex: 1; }

.plan-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.plan { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; text-align: center; }
.plan.current { border-color: var(--blue); box-shadow: 0 0 0 3px var(--blue-bg); }
.plan .price { font-size: 26px; font-weight: 700; margin: 8px 0; }
.plan .price small { font-size: 13px; color: var(--muted); font-weight: 400; }
.plan ul { list-style: none; padding: 0; margin: 10px 0 16px; color: #4a5568; font-size: 14px; }
.plan ul li { margin: 5px 0; }

/* 营销页 */
.hero { text-align: center; padding: 72px 20px 50px; }
.hero h1 { font-size: 38px; line-height: 1.3; margin: 0 0 14px; }
.hero h1 em { color: var(--blue); font-style: normal; }
.hero p { font-size: 17px; color: #4a5568; max-width: 620px; margin: 0 auto 28px; }
.hero .cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.hero .btn.big { padding: 13px 34px; font-size: 16px; border-radius: 12px; }
.feats { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; max-width: 1000px; margin: 20px auto 0; padding: 0 20px; }
.feats .card h3 { margin: 6px 0 8px; font-size: 16px; }
.feats .card p { margin: 0; color: #4a5568; font-size: 14px; }
.feats .ico { font-size: 26px; }
.foot { text-align: center; color: var(--muted); font-size: 13px; padding: 46px 20px 30px; }
.foot a { color: var(--muted); }

.auth-box { max-width: 400px; margin: 60px auto; }
.qr { text-align: center; padding: 10px; }
.qr img { width: 200px; height: 200px; border: 1px solid var(--line); border-radius: 10px; }

@media (max-width: 640px) {
  .hero h1 { font-size: 27px; }
  .nav { flex-wrap: wrap; gap: 8px 14px; }
  .wrap { padding: 18px 14px 50px; }
}