:root { color-scheme: light; font: 16px/1.5 "Microsoft YaHei", sans-serif; color: #17201c; background: #f3f5f4; }
* { box-sizing: border-box; }
body { margin: 0; }
main { width: min(900px, calc(100% - 32px)); margin: 48px auto; padding: 24px; background: #fff; border: 1px solid #d7ddda; border-radius: 8px; }
h1 { margin: 0 0 20px; font-size: 22px; }
form { display: grid; grid-template-columns: minmax(180px, 1fr) minmax(220px, 1.5fr) auto; gap: 12px; align-items: end; }
label { display: grid; gap: 5px; }
.key-control { display: grid; gap: 5px; }
.field-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.remember-option { display: flex; align-items: center; gap: 6px; white-space: nowrap; }
.remember-option input { width: 18px; min-height: 18px; margin: 0; padding: 0; }
input, button { min-height: 44px; padding: 8px 12px; border: 1px solid #aeb8b3; border-radius: 4px; font: inherit; }
button { background: #fff; cursor: pointer; }
button:disabled { cursor: default; opacity: .6; }
.danger { color: #a1282e; border-color: #c67d80; white-space: nowrap; }
#status { min-height: 24px; color: #a1282e; }
.table-wrap { overflow-x: auto; }
.table-wrap[hidden] { display: none; }
table { width: 100%; min-width: 620px; border-collapse: collapse; }
th, td { padding: 10px; border-bottom: 1px solid #dfe4e1; text-align: left; }
th { background: #eef2f0; }
@media (max-width: 680px) {
  main { margin: 16px auto; padding: 16px; }
  form { grid-template-columns: 1fr; }
}