* { box-sizing: border-box; }
html, body {
  min-height: 100%;
  margin: 0;
}
body {
  display: grid;
  place-items: center;
  padding: 20px;
  background: #eef1f3;
  color: #1e2529;
  font: 15px/1.45 Arial, "Microsoft YaHei", sans-serif;
}
.panel {
  width: min(520px, 100%);
  background: #fff;
  border: 1px solid #dce1e4;
  border-top: 4px solid #b4242a;
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(18, 29, 35, 0.08);
  overflow: hidden;
}
.head {
  padding: 20px 22px 16px;
  border-bottom: 1px solid #e8ebed;
}
.brand {
  margin: 0;
  color: #6b747a;
  font-size: 13px;
  font-weight: 400;
}
.head h1 {
  margin: 5px 0 0;
  font-size: 22px;
  letter-spacing: 0;
  font-weight: 700;
}
.lines {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  padding: 18px;
}
.line {
  height: 48px;
  display: grid;
  grid-template-columns: 14px 1fr auto;
  align-items: center;
  gap: 9px;
  padding: 0 14px;
  color: #20272b;
  text-decoration: none;
  border: 1px solid #d8dee1;
  border-radius: 6px;
  background: #fff;
}
.line:hover,
.line:focus {
  border-color: #16774a;
  background: #f5fbf8;
  outline: none;
}
.line b {
  font-size: 13px;
  color: #16774a;
}
.dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #1b9a60;
  box-shadow: 0 0 0 3px #e1f5ea;
}
@media (max-width: 420px) {
  .lines { grid-template-columns: 1fr; }
  .panel { box-shadow: none; }
  .head h1 { font-size: 20px; }
}