:root {
  --bg: #f5f6f8;
  --panel: #ffffff;
  --border: #e3e6ea;
  --text: #1f2329;
  --muted: #6b7280;
  --brand: #2563eb;
  --brand-dark: #1d4ed8;
  --success: #16a34a;
  --warn: #d97706;
  --danger: #dc2626;
  --radius: 8px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- 布局 ---------- */
.layout { display: flex; min-height: 100vh; }

.sidebar {
  width: 210px;
  flex: 0 0 210px;
  background: #111827;
  color: #cbd5e1;
  padding: 20px 0;
}
.sidebar .brand {
  padding: 0 20px 18px;
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  border-bottom: 1px solid #1f2937;
  margin-bottom: 12px;
}
.sidebar a {
  display: block;
  padding: 10px 20px;
  color: #cbd5e1;
  font-size: 14px;
}
.sidebar a:hover { background: #1f2937; text-decoration: none; }
.sidebar a.active { background: var(--brand); color: #fff; }
.sidebar .footer { padding: 16px 20px; font-size: 12px; color: #64748b; }

.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.topbar {
  height: 56px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
}
.topbar .title { font-size: 16px; font-weight: 600; }
.topbar .user { color: var(--muted); font-size: 13px; }

.content { padding: 24px; flex: 1; }

/* ---------- 组件 ---------- */
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-bottom: 18px;
}
.card h2 { margin: 0 0 14px; font-size: 15px; font-weight: 600; }
.card h3 { margin: 18px 0 10px; font-size: 14px; font-weight: 600; }

.grid { display: grid; gap: 16px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.stat {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
}
.stat .label { color: var(--muted); font-size: 13px; }
.stat .value { font-size: 24px; font-weight: 600; margin-top: 6px; }
.stat .sub { color: var(--muted); font-size: 12px; margin-top: 4px; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { padding: 10px 12px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
th { background: #fafbfc; font-weight: 600; color: #374151; }
tbody tr:hover { background: #fafbfc; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }

.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 12px; }

.btn {
  display: inline-block;
  padding: 7px 14px;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  color: var(--text);
}
.btn:hover { background: #f3f4f6; text-decoration: none; }
.btn-primary { background: var(--brand); border-color: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-dark); }
.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-danger:hover { background: #b91c1c; }
.btn-sm { padding: 4px 9px; font-size: 12px; }

input[type=text], input[type=password], input[type=number], select, textarea {
  width: 100%;
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 13px;
  font-family: inherit;
  background: #fff;
  color: var(--text);
}
textarea { min-height: 90px; resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 2px solid #bfdbfe; border-color: var(--brand); }

label { display: block; font-size: 13px; color: #374151; margin-bottom: 5px; }
.field { margin-bottom: 14px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field-row-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }

.hint { color: var(--muted); font-size: 12px; margin-top: 4px; }

.tag { display: inline-block; padding: 2px 8px; border-radius: 10px; font-size: 12px; line-height: 18px; }
.tag-ok { background: #dcfce7; color: #15803d; }
.tag-warn { background: #fef3c7; color: #92400e; }
.tag-danger { background: #fee2e2; color: #b91c1c; }
.tag-info { background: #dbeafe; color: #1e40af; }
.tag-muted { background: #f1f5f9; color: #475569; }

.alert { padding: 10px 14px; border-radius: 6px; margin-bottom: 14px; font-size: 13px; }
.alert-ok { background: #dcfce7; color: #15803d; }
.alert-err { background: #fee2e2; color: #b91c1c; }
.alert-info { background: #eff6ff; color: #1e40af; }

.toolbar { display: flex; gap: 10px; align-items: flex-end; flex-wrap: wrap; margin-bottom: 14px; }
.toolbar .field { margin-bottom: 0; }

.pager { margin-top: 14px; display: flex; gap: 8px; align-items: center; color: var(--muted); font-size: 13px; }

.empty { padding: 30px; text-align: center; color: var(--muted); }

/* ---------- 登录 ---------- */
.login-wrap { max-width: 360px; margin: 90px auto; }
.login-wrap .card { padding: 28px; }
.login-wrap h1 { font-size: 18px; margin: 0 0 18px; text-align: center; }

/* ---------- 密钥展示 ---------- */
.keybox {
  background: #0f172a;
  color: #e2e8f0;
  padding: 12px 14px;
  border-radius: 6px;
  font-family: ui-monospace, Menlo, Consolas, monospace;
  font-size: 12px;
  word-break: break-all;
}
.keybox .line { margin-bottom: 4px; }

@media (max-width: 900px) {
  .grid-4, .grid-3, .grid-2, .field-row, .field-row-3 { grid-template-columns: 1fr; }
  .sidebar { width: 150px; flex-basis: 150px; }
}