:root {
  --bg: #0f1419;
  --card: #1a222c;
  --line: #2a3542;
  --text: #e7eef7;
  --muted: #8b9bb0;
  --good: #3dd68c;
  --mid: #f5a524;
  --bad: #f31260;
  --accent: #5b8def;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: radial-gradient(1200px 600px at 10% -10%, #1b2a40 0%, var(--bg) 55%);
  color: var(--text);
  min-height: 100vh;
}
a { color: var(--accent); }
.auth { display: grid; place-items: center; padding: 24px; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px;
}
.login-card { width: min(380px, 100%); display: grid; gap: 8px; }
.login-card input, .login-card button, .admin input, .admin button, .toolbar button {
  font: inherit;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #10161e;
  color: var(--text);
}
.login-card button, .toolbar button, .admin button {
  background: var(--accent);
  border: none;
  cursor: pointer;
  color: #fff;
  font-weight: 600;
}
.muted { color: var(--muted); font-size: 13px; }
.err { color: var(--bad); min-height: 1.2em; }
.wrap { max-width: 1100px; margin: 0 auto; padding: 20px 16px 48px; }
.top {
  display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between;
  margin-bottom: 16px;
}
h1 { margin: 0; font-size: 22px; letter-spacing: 0.02em; }
.toolbar { display: flex; gap: 8px; flex-wrap: wrap; }
.grid { display: grid; gap: 14px; }
.notes { display: grid; gap: 8px; }
.note {
  padding: 10px 12px;
  border-left: 3px solid var(--accent);
  background: #121920;
  border-radius: 0 8px 8px 0;
}
.alerts .alert {
  padding: 10px 12px;
  margin-bottom: 8px;
  background: #24181a;
  border: 1px solid #5a2434;
  border-radius: 8px;
  font-size: 14px;
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
th, td {
  border-bottom: 1px solid var(--line);
  padding: 8px 6px;
  text-align: left;
  vertical-align: top;
}
th { color: var(--muted); font-weight: 600; }
.g-好 { color: var(--good); font-weight: 700; }
.g-中 { color: var(--mid); font-weight: 700; }
.g-差 { color: var(--bad); font-weight: 700; }
.news li { margin: 6px 0; }
.brief {
  white-space: pre-wrap;
  line-height: 1.55;
  font-size: 14px;
  background: #121920;
  padding: 12px;
  border-radius: 8px;
}
.admin { display: grid; gap: 16px; max-width: 720px; }
.admin section { display: grid; gap: 8px; }
@media (max-width: 720px) {
  .hide-sm { display: none; }
}