:root {
  --bg: #0f1115;
  --card: #171a21;
  --card2: #1d212a;
  --line: #262b36;
  --text: #e6e8ee;
  --muted: #8b93a7;
  --accent: #4f8cff;
  --ok: #35c46a;
  --warn: #f0a04a;
  --err: #f06a6a;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

body.gw-page {
  margin: 0;
  padding: 24px 14px 40px;
  background: radial-gradient(1200px 600px at 50% -10%, #1b2130 0%, var(--bg) 55%);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
}

.gw-card {
  max-width: 460px;
  margin: 0 auto;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, .35);
}

.gw-title { font-size: 22px; margin: 0 0 4px; }
.gw-sub { color: var(--muted); margin: 0 0 18px; font-size: 13px; }

.gw-rows { border-top: 1px solid var(--line); }
.gw-row {
  display: flex; justify-content: space-between; gap: 12px;
  padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 14px;
}
.gw-row span { color: var(--muted); }

.gw-note { color: var(--muted); font-size: 13px; margin: 16px 0 8px; }
.gw-link { color: var(--accent); text-decoration: none; }

.gw-alert { padding: 12px 14px; border-radius: 10px; font-size: 13px; margin-bottom: 16px; }
.gw-alert-warn { background: rgba(240, 160, 74, .12); border: 1px solid rgba(240, 160, 74, .35); color: #f3c48c; }

/* ---------------- 收银台 ---------------- */
.gw-cashier { padding: 18px; }

.gw-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 14px; }
.gw-brand { font-weight: 600; font-size: 15px; }
.gw-order { color: var(--muted); font-size: 11px; }

.gw-item { display: flex; justify-content: space-between; gap: 10px; padding: 12px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.gw-item-name { color: var(--text); font-size: 14px; max-width: 65%; word-break: break-all; }
.gw-item-money { color: var(--accent); font-weight: 600; }

.gw-tabs { display: flex; gap: 8px; margin: 14px 0 4px; flex-wrap: wrap; }
.gw-tab {
  padding: 7px 12px; border-radius: 999px; font-size: 12.5px;
  background: var(--card2); color: var(--muted); text-decoration: none;
  border: 1px solid var(--line);
}
.gw-tab.is-on { background: rgba(79, 140, 255, .16); color: #bcd2ff; border-color: rgba(79, 140, 255, .5); }

.gw-amount-box { text-align: center; padding: 16px 0 6px; }
.gw-label { color: var(--muted); font-size: 12px; letter-spacing: .04em; }
.gw-amount { font-size: 34px; font-weight: 700; letter-spacing: -.5px; margin: 4px 0 10px; word-break: break-all; }

.gw-qr-wrap { text-align: center; margin: 8px 0 14px; }
.gw-qr {
  width: 210px; height: 210px; margin: 0 auto; padding: 8px;
  background: #fff; border-radius: 12px; display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.gw-qr svg { width: 100%; height: 100%; display: block; }
.gw-qr-tip { color: var(--muted); font-size: 12px; margin-top: 8px; }

.gw-addr-box { background: var(--card2); border: 1px solid var(--line); border-radius: 12px; padding: 12px; text-align: center; }
.gw-addr { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12.5px; word-break: break-all; margin: 6px 0 10px; line-height: 1.5; }

.gw-btn {
  display: inline-block; padding: 10px 16px; border-radius: 10px; border: 0;
  background: var(--accent); color: #fff; font-size: 14px; cursor: pointer;
  text-decoration: none; text-align: center; font-family: inherit;
}
.gw-btn:active { opacity: .85; }
.gw-btn[disabled] { opacity: .6; cursor: default; }
.gw-btn-ghost { background: transparent; border: 1px solid var(--line); color: var(--muted); }
.gw-btn-sm { padding: 6px 12px; font-size: 12.5px; }

.gw-warn {
  margin: 14px 0 10px; padding: 10px 12px; border-radius: 10px; font-size: 12.5px;
  background: rgba(240, 160, 74, .1); border: 1px solid rgba(240, 160, 74, .3);
  color: #f0c08a; line-height: 1.7;
}
.gw-warn b { color: #ffd9a8; }

.gw-timer { text-align: center; color: var(--muted); font-size: 13px; }
.gw-status { text-align: center; color: #8fb8ff; font-size: 13px; margin-top: 6px; }

.gw-txid { margin-top: 16px; border-top: 1px dashed var(--line); padding-top: 12px; }
.gw-txid summary { cursor: pointer; color: var(--muted); font-size: 12.5px; outline: none; }
.gw-txid form { display: flex; gap: 8px; margin-top: 10px; }
.gw-txid input {
  flex: 1; min-width: 0; padding: 9px 11px; border-radius: 9px; border: 1px solid var(--line);
  background: var(--bg); color: var(--text); font-size: 12.5px; font-family: inherit;
}
.gw-hint { color: var(--muted); font-size: 12.5px; margin-top: 8px; line-height: 1.6; }
.gw-hint-err { color: var(--err); }

.gw-ok { text-align: center; font-size: 20px; font-weight: 600; color: var(--ok); margin: 16px 0 8px; }
#gw-done { text-align: center; }
#gw-done .gw-btn { margin-top: 12px; }

.gw-foot { color: #666e80; font-size: 11.5px; margin-top: 18px; text-align: center; line-height: 1.7; }
.gw-hidden { display: none !important; }

/* ---------------- 后台 ---------------- */
body.gw-admin { padding: 0; }

.gw-top {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 14px 18px; border-bottom: 1px solid var(--line); background: var(--card);
  position: sticky; top: 0; z-index: 5;
}
.gw-top b { font-size: 15px; }
.gw-top nav { display: flex; gap: 14px; flex-wrap: wrap; }
.gw-top nav a { color: var(--muted); text-decoration: none; font-size: 13px; }
.gw-top nav a.on { color: var(--accent); }

.gw-main { max-width: 1080px; margin: 0 auto; padding: 18px; }

.gw-box {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  padding: 16px 18px; margin-bottom: 16px;
}
.gw-box h3 { margin: 0 0 12px; font-size: 15px; }
.gw-box p { color: var(--muted); font-size: 13px; }

.gw-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; }
.gw-stat { background: var(--card2); border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; }
.gw-stat .k { color: var(--muted); font-size: 12px; }
.gw-stat .v { font-size: 22px; font-weight: 600; margin-top: 2px; }

.gw-form { display: grid; gap: 12px; }
.gw-field label { display: block; color: var(--muted); font-size: 12.5px; margin-bottom: 5px; }
.gw-field input[type=text], .gw-field input[type=password], .gw-field input[type=number], .gw-field textarea, .gw-field select {
  width: 100%; padding: 9px 11px; border-radius: 9px; border: 1px solid var(--line);
  background: var(--bg); color: var(--text); font-size: 13.5px; font-family: inherit;
}
.gw-field textarea { min-height: 64px; resize: vertical; }
.gw-field .tip { color: #666e80; font-size: 11.5px; margin-top: 4px; }

.gw-table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.gw-table th, .gw-table td { text-align: left; padding: 9px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
.gw-table th { color: var(--muted); font-weight: 500; font-size: 12px; }
.gw-table td { color: #cfd4e0; }
.gw-mono { font-family: ui-monospace, Menlo, monospace; font-size: 11.5px; color: var(--muted); word-break: break-all; }

.gw-badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 11px; }
.gw-badge-ok { background: rgba(53, 196, 106, .16); color: #6ee29a; }
.gw-badge-wait { background: rgba(240, 160, 74, .16); color: #f0c08a; }
.gw-badge-bad { background: rgba(240, 106, 106, .16); color: #f09a9a; }
.gw-badge-info { background: rgba(79, 140, 255, .16); color: #a9c6ff; }

.gw-msg { padding: 10px 14px; border-radius: 10px; margin-bottom: 14px; font-size: 13px; }
.gw-msg-ok { background: rgba(53, 196, 106, .12); border: 1px solid rgba(53, 196, 106, .35); color: #8ce0ae; }
.gw-msg-err { background: rgba(240, 106, 106, .12); border: 1px solid rgba(240, 106, 106, .35); color: #f3a3a3; }

.gw-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.gw-scroll { overflow-x: auto; }

@media (max-width: 520px) {
  .gw-card { padding: 16px; border-radius: 14px; }
  .gw-amount { font-size: 30px; }
  .gw-qr { width: 190px; height: 190px; }
  .gw-main { padding: 12px; }
  .gw-top { padding: 12px 14px; }
}