:root {
  --bg: #f5f7fb;
  --card: #ffffff;
  --line: #d7dce6;
  --text: #162033;
  --muted: #5c6475;
  --primary: #0a66c2;
  --danger: #b42318;
  --success: #027a48;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at 10% 10%, #ecf3ff, var(--bg) 45%);
}

.container {
  max-width: 1200px;
  margin: 24px auto;
  padding: 0 14px 40px;
  display: grid;
  gap: 14px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px;
}

h1,
h2 {
  margin: 0 0 12px;
}

.hint {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.span-2 {
  grid-column: span 2;
}

label {
  font-size: 13px;
  color: var(--muted);
  display: grid;
  gap: 6px;
}

input {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
  width: 100%;
  font-size: 14px;
  color: var(--text);
  background: #fff;
}

.inline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
}

.inline input {
  width: auto;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.align-end {
  align-items: end;
}

.key-box {
  margin-top: 10px;
}

.key-row {
  display: flex;
  gap: 8px;
}

button {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 12px;
  background: #fff;
  color: var(--text);
  cursor: pointer;
}

button:hover {
  border-color: var(--primary);
}

.btn-danger {
  color: var(--danger);
}

.btn-success {
  color: var(--success);
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 900px;
}

th,
td {
  border-bottom: 1px solid var(--line);
  text-align: left;
  padding: 8px;
  font-size: 13px;
}

th {
  background: #f4f7fd;
}

.output {
  min-height: 120px;
  max-height: 360px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  white-space: pre-wrap;
  word-break: break-all;
  background: #f9fbff;
}

@media (max-width: 900px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .span-2 {
    grid-column: span 1;
  }
}