:root {
  --bg: #f6f5f8;
  --panel: #ffffff;
  --line: #e9e4ef;
  --text: #211c29;
  --muted: #8a8394;
  --purple: #7a5af8;
  --purple-soft: #f1ecff;
  --pink-soft: #fdf0f7;
  --ok: #1fa971;
  --warn: #c9821a;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 14px/1.6 "Segoe UI", "Microsoft YaHei", system-ui, sans-serif;
}
.top {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 22px; background: #fff; border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 9px; font-weight: 650; }
.brand small { color: var(--muted); font-weight: 400; margin-left: 4px; }
.logo {
  width: 32px; height: 32px; border-radius: 10px; display: grid; place-items: center;
  background: linear-gradient(135deg, #8b6cff, #e08bd8); color: #fff;
}
nav { display: flex; align-items: center; gap: 14px; }
.link { color: var(--purple); text-decoration: none; font-size: 13px; }
.hidden { display: none !important; }

main { max-width: 940px; margin: 24px auto; padding: 0 18px; display: grid; gap: 16px; }
.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 18px;
  box-shadow: 0 1px 2px rgba(30, 18, 50, .03);
}
.card h2 { font-size: 15px; margin: 0 0 10px; }
.auth-card { max-width: 420px; margin: 0 auto; }
.tabs { display: flex; gap: 8px; margin-bottom: 8px; }
.tab {
  all: unset; cursor: pointer; padding: 6px 12px; border-radius: 8px; color: var(--muted); font-size: 13px;
}
.tab.active { background: var(--purple-soft); color: var(--purple); font-weight: 600; }
label { display: block; font-size: 12px; color: var(--muted); margin: 10px 0 2px; }
input {
  width: 100%; margin-top: 4px; padding: 9px 11px; font: inherit; color: var(--text);
  background: #fbfafd; border: 1px solid var(--line); border-radius: 9px; outline: none;
}
input:focus { border-color: #c9b8f6; background: #fff; }
.btn {
  all: unset; cursor: pointer; text-align: center; padding: 9px 14px; border-radius: 9px;
  font-size: 13px; border: 1px solid transparent; margin-top: 10px;
}
.btn.primary { background: linear-gradient(135deg, #8b6cff, #a77bff); color: #fff; }
.btn.ghost { border-color: var(--line); background: #fff; color: var(--text); padding: 6px 12px; margin-top: 0; }
.msg { min-height: 18px; color: var(--warn); font-size: 12px; margin-top: 8px; }

.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 760px) { .grid { grid-template-columns: 1fr; } }
.kv { display: flex; justify-content: space-between; gap: 10px; padding: 6px 0; border-bottom: 1px dashed #eee8f4; font-size: 13px; }
.kv span { color: var(--muted); }
.kv code { font-size: 12.5px; word-break: break-all; }

.devices { display: grid; gap: 8px; }
.device {
  display: flex; align-items: center; gap: 10px; padding: 10px 12px; border: 1px solid var(--line);
  border-radius: 10px; background: #fcfbfe; font-size: 12.5px;
}
.device .name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.device code { color: #5c5470; }
.device .off { color: var(--muted); }
.unbind { all: unset; cursor: pointer; color: #d6455c; font-size: 12.5px; }

.ann { display: grid; gap: 8px; }
.ann-item { border-left: 3px solid var(--purple); background: #fcfbfe; border-radius: 8px; padding: 9px 12px; }
.ann-item.warn { border-left-color: var(--warn); }
.ann-item.critical { border-left-color: #d6455c; }
.ann-item b { display: block; font-size: 13px; }
.ann-item p { margin: 4px 0 0; color: #514960; font-size: 12.5px; white-space: pre-wrap; }

.foot { text-align: center; color: var(--muted); font-size: 12px; padding: 18px 0 28px; }
.foot a { color: var(--muted); margin-left: 6px; }