:root {
  --bg: #f5f6fa;
  --card: #ffffff;
  --ink: #1a2233;
  --muted: #6b7688;
  --line: #e3e7ef;
  --brand: #2d6cdf;
  --brand-dark: #1e4fb0;
  --ok: #1a9e6c;
  --err: #d64545;
  --chip: #eef3fd;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg); color: var(--ink); line-height: 1.6;
}
.hidden { display: none !important; }

.topbar { background: #111a2c; color: #fff; }
.topbar-inner {
  max-width: 860px; margin: 0 auto; padding: 12px 20px;
  display: flex; justify-content: space-between; align-items: center;
}
.brand { font-weight: 600; letter-spacing: .3px; }
.topbar-right button { margin-left: 8px; }

.container { max-width: 860px; margin: 28px auto 60px; padding: 0 16px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  padding: 26px 28px; box-shadow: 0 2px 10px rgba(20,30,60,.04);
}
.card h1 { font-size: 22px; margin-bottom: 8px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
code { background: #f0f2f7; padding: 2px 6px; border-radius: 5px; font-size: 13px; }

.form-row { display: flex; gap: 10px; margin-top: 14px; flex-wrap: wrap; }
.form-row input[type=email], .form-row input[type=text], .form-row select {
  flex: 1; min-width: 220px; padding: 10px 12px; font-size: 15px;
  border: 1px solid var(--line); border-radius: 8px; background: #fff;
}
.form-row input:focus { outline: 2px solid #b9d0f7; border-color: var(--brand); }

.btn {
  padding: 10px 18px; border: 1px solid var(--line); border-radius: 8px;
  background: #fff; color: var(--ink); font-size: 15px; cursor: pointer;
  white-space: nowrap; transition: all .15s;
}
.btn:hover { border-color: var(--brand); color: var(--brand); }
.btn.primary { background: var(--brand); border-color: var(--brand); color: #fff; }
.btn.primary:hover { background: var(--brand-dark); }
.btn.ghost { background: transparent; color: var(--muted); }
.btn.ghost:hover { color: var(--brand); }
.btn.small { padding: 4px 10px; font-size: 13px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.err { color: var(--err); font-size: 14px; margin-top: 10px; min-height: 1em; }
.dev-hint { color: var(--ok); font-size: 14px; margin-top: 6px; }

.tag {
  display: inline-block; font-size: 12px; background: var(--chip); color: var(--brand);
  padding: 2px 10px; border-radius: 20px; vertical-align: middle; margin-left: 6px;
}

/* 引导步骤 */
.step { border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; margin-top: 14px; background: #fff; }
.step.done { border-left: 4px solid var(--ok); }
.step.active { border-left: 4px solid var(--brand); }
.step-head { display: flex; align-items: center; gap: 10px; }
.step-num {
  width: 26px; height: 26px; border-radius: 50%; background: var(--chip); color: var(--brand);
  display: flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 600;
  flex-shrink: 0;
}
.step.done .step-num { background: var(--ok); color: #fff; }
.step-title { font-weight: 600; font-size: 16px; }
.step-body { margin: 10px 0 0 36px; font-size: 14.5px; color: #333c4d; }
.step-body ol { margin-left: 18px; }
.step-body li { margin: 4px 0; }
.step-actions { margin: 12px 0 0 36px; }
.step-done-label { color: var(--ok); font-weight: 600; margin-left: 36px; margin-top: 8px; display: inline-block; }
.copy-btn { margin-left: 8px; }

textarea.copybox {
  width: 100%; min-height: 74px; margin-top: 8px; padding: 10px;
  border: 1px dashed #b9c4d6; border-radius: 8px; font-size: 13px;
  background: #f7f9fc; color: #223; resize: vertical; font-family: ui-monospace, Consolas, monospace;
}

/* admin */
.admin-grid { display: grid; grid-template-columns: 1fr 1.3fr; gap: 20px; margin-top: 16px; }
@media (max-width: 720px){ .admin-grid { grid-template-columns: 1fr; } }
.admin-panel { border: 1px solid var(--line); border-radius: 10px; padding: 16px; background: #fafbfe; }
.admin-panel h3 { font-size: 15px; margin-bottom: 8px; }
.gen-result { width: 100%; min-height: 90px; margin-top: 10px; font-size: 13px; font-family: ui-monospace, Consolas, monospace; }
.key-table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.key-table th, .key-table td { text-align: left; padding: 6px 6px; border-bottom: 1px solid var(--line); vertical-align: top; }
.key-table th { color: var(--muted); font-weight: 500; }
.status-active { color: var(--ok); }
.status-revoked { color: var(--err); }

.footer { text-align: center; padding: 20px; }
.login-card { max-width: 480px; margin: 6vh auto 0; }