:root {
  --bg: #f5f7fb;
  --ink: #172033;
  --muted: #667085;
  --line: #d9e0ea;
  --brand: #1268d6;
  --brand-dark: #0f53ac;
  --ok: #0b7a45;
  --warn: #996200;
  --danger: #b42318;
  --panel: #ffffff;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--bg);
}
a { color: var(--brand); text-decoration: none; }
.topbar {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  background: #fff;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
}
.brand { font-weight: 800; color: var(--ink); font-size: 18px; }
nav { display: flex; gap: 18px; align-items: center; }
nav form { margin: 0; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 28px; }
.hero, .pagehead {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
  margin-bottom: 22px;
}
h1 { margin: 0 0 8px; font-size: 30px; }
h2 { margin: 0 0 16px; font-size: 18px; }
p { line-height: 1.7; }
.hero p, .pagehead p, .muted { color: var(--muted); margin: 0; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; }
button {
  border: 0;
  background: var(--brand);
  color: #fff;
  min-height: 42px;
  padding: 0 18px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 700;
}
button:hover { background: var(--brand-dark); }
button.secondary { background: #243b53; }
button.danger { background: var(--danger); }
button.ghost { background: transparent; color: var(--ink); padding: 0; min-height: auto; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.panel, .auth {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
  box-shadow: 0 8px 20px rgba(16, 24, 40, 0.04);
}
.full { margin-top: 18px; }
.full + .full { margin-top: 14px; }
.auth { max-width: 460px; margin: 70px auto; }
dl { display: grid; grid-template-columns: 120px 1fr; gap: 10px; margin: 0; }
dt { color: var(--muted); }
dd { margin: 0; font-weight: 700; overflow-wrap: anywhere; }
ol { margin: 0; padding-left: 20px; line-height: 1.9; }
.form { display: grid; gap: 16px; margin-top: 18px; }
.form.wide { max-width: 720px; }
label { display: grid; gap: 8px; font-weight: 700; }
input, select {
  min-height: 42px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font: inherit;
  background: #fff;
}
.check { grid-template-columns: 18px 1fr; align-items: center; font-weight: 600; }
.check input { min-height: 18px; }
.alert, .ok, .notice {
  padding: 12px 14px;
  border-radius: 8px;
  margin-bottom: 12px;
}
.alert { background: #fff1f0; color: var(--danger); border: 1px solid #ffd1cc; }
.ok { background: #ecfdf3; color: var(--ok); border: 1px solid #b7ebc6; }
.notice { background: #fff8e6; color: var(--warn); border: 1px solid #ffe0a3; }
.logs { display: grid; gap: 8px; }
.log {
  display: grid;
  grid-template-columns: 160px 70px 1fr;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcff;
  overflow-wrap: anywhere;
}
.log span { color: var(--muted); }
.log.error b { color: var(--danger); }
.log.safe b, .log.trade b { color: var(--ok); }
@media (max-width: 820px) {
  .topbar, .hero, .pagehead { align-items: flex-start; flex-direction: column; }
  nav { flex-wrap: wrap; }
  .wrap { padding: 18px; }
  .grid { grid-template-columns: 1fr; }
  .log { grid-template-columns: 1fr; }
}