:root {
  color-scheme: light dark;
  --bg: #f7f7f5;
  --panel: #ffffff;
  --text: #1c1c1a;
  --muted: #6b6b66;
  --line: #e2e2dd;
  --accent: #2f6f5e;
  --warn-bg: #fdf1dc;
  --warn-text: #7a4a00;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161716;
    --panel: #202220;
    --text: #ececea;
    --muted: #a0a29c;
    --line: #333531;
    --accent: #6bc2a8;
    --warn-bg: #3a2c12;
    --warn-text: #f2cf8e;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
}
header { padding: 16px; border-bottom: 1px solid var(--line); background: var(--panel); }
.brand { color: var(--text); font-weight: 700; text-decoration: none; }
main { max-width: 960px; margin: 0 auto; padding: 16px; }
h1 { font-size: 28px; margin: 16px 0 8px; }
h2 { font-size: 18px; margin: 24px 0 8px; }
.card h2 { margin-top: 0; }
a { color: var(--accent); }
.muted { color: var(--muted); }
.small { font-size: 14px; margin: 0; }
.flash { padding: 8px 12px; border-radius: 6px; background: var(--warn-bg); color: var(--warn-text); }
.badge { display: inline-block; padding: 2px 10px; border: 1px solid var(--line); border-radius: 999px; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
.card { padding: 16px; background: var(--panel); border: 1px solid var(--line); border-radius: 8px; }
.price { font-size: 22px; font-weight: 700; margin: 8px 0; }
label { display: block; margin: 8px 0; }
input { font: inherit; color: inherit; background: var(--bg); padding: 6px 8px; border: 1px solid var(--line); border-radius: 6px; }
input[type="number"] { width: 110px; }
input[type="password"] { width: 100%; }
button {
  font: inherit; cursor: pointer; padding: 6px 14px;
  color: #fff; background: #2f6f5e; border: 1px solid #2f6f5e; border-radius: 6px;
}
button.ghost { color: var(--text); background: transparent; border-color: var(--line); }
dl { display: grid; grid-template-columns: auto 1fr; gap: 4px 16px; }
dt { color: var(--muted); }
dd { margin: 0; }
.qr { display: block; width: 240px; max-width: 100%; margin: 8px 0; }
.secret {
  padding: 12px; overflow-wrap: anywhere; white-space: pre-wrap;
  background: var(--bg); border: 1px solid var(--line); border-radius: 6px;
}
table { width: 100%; border-collapse: collapse; display: block; overflow-x: auto; }
th, td { padding: 8px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 500; white-space: nowrap; }
.actions form, .inline { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 4px; }