:root {
  --bg: #0b1220;
  --card: #121a2b;
  --border: #223055;
  --text: #e8eefc;
  --muted: #a8b6df;
  --muted2: #b9c7ef;
  --btn: #2a5bff;
  --danger: #ff375f;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "PingFang SC","Hiragino Sans GB","Microsoft YaHei", sans-serif;
}
.wrap { max-width: 980px; margin: 0 auto; padding: 18px; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  margin: 12px 0;
}
.row { display: flex; gap: 10px; flex-wrap: wrap; }
label { font-size: 12px; color: var(--muted2); }
input, select, button {
  border-radius: 10px;
  border: 1px solid #2b3a63;
  background: #0e1628;
  color: var(--text);
  padding: 10px;
}
input, select { min-width: 220px; }
button { cursor: pointer; }
button.primary { background: var(--btn); border-color: var(--btn); }
button.danger { background: var(--danger); border-color: var(--danger); }
.small { font-size: 12px; color: var(--muted); }
.hist-item {
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  margin: 8px 0;
  background: #0e1628;
}
a { color: #9cc0ff; }
.att { display: flex; gap: 8px; align-items: center; margin: 6px 0; }
.att input { min-width: 0; width: 220px; }
#editor { background: #fff; color: #111; border-radius: 10px; }
#fromPreview { opacity: 0.95; }