:root {
  --bg: #eef4f7;
  --ink: #152034;
  --muted: #667085;
  --line: #d7e0e7;
  --panel: #ffffff;
  --primary: #176b87;
  --primary-dark: #0f5268;
  --accent: #c2410c;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Arial, "Microsoft YaHei", sans-serif;
}

button,
input {
  font: inherit;
}

.loginShell {
  width: min(980px, calc(100vw - 32px));
  min-height: 100vh;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 36px;
  align-items: center;
}

.brand p,
.brand h1,
.loginCard h2,
#message {
  margin: 0;
}

.brand p {
  color: var(--primary);
  font-size: 18px;
  font-weight: 700;
}

.brand h1 {
  max-width: 560px;
  margin-top: 14px;
  font-size: 40px;
  line-height: 1.18;
  letter-spacing: 0;
}

.roleStrip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.roleStrip span {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 14px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--muted);
}

.loginCard {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 24px;
  box-shadow: 0 18px 40px rgba(21, 32, 52, 0.08);
}

.loginCard h2 {
  font-size: 22px;
}

.stack {
  display: grid;
  gap: 16px;
  margin-top: 20px;
}

label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
}

input {
  min-height: 42px;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0 12px;
  color: var(--ink);
}

button {
  min-height: 42px;
  border: 0;
  border-radius: 6px;
  background: var(--primary);
  color: #fff;
  cursor: pointer;
}

button:hover {
  background: var(--primary-dark);
}

#message {
  min-height: 22px;
  margin-top: 14px;
  color: var(--accent);
}

@media (max-width: 760px) {
  .loginShell {
    grid-template-columns: 1fr;
    align-content: center;
    gap: 22px;
    padding: 28px 0;
  }

  .brand h1 {
    font-size: 30px;
  }
}