:root {
  font-family: "Segoe UI", "Microsoft YaHei", system-ui, sans-serif;
  color: #172033;
  background: #eef2f6;
}
* { box-sizing: border-box; }
html, body { min-height: 100%; }
body { margin: 0; background: #eef3f8; }
button, input { font: inherit; }
button { cursor: pointer; }
button:disabled { cursor: default; opacity: .55; }
[hidden] { display: none !important; }
.login-screen {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px;
  background: radial-gradient(circle at top left, #dbeafe, transparent 34%), #eef3f8;
}
.login-card {
  width: min(420px, 100%);
  display: grid;
  gap: 16px;
  padding: 28px;
  border: 1px solid #d7e2ef;
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 18px 45px rgba(15, 23, 42, .12);
}
.login-card label {
  display: grid;
  gap: 7px;
  font-weight: 700;
  color: #0f172a;
}
.login-card input {
  width: 100%;
  min-height: 36px;
  border: 1px solid #cbd5e1;
  border-radius: 10px;
  padding: 11px 12px;
}
.login-turnstile {
  display: grid;
  gap: 8px;
  width: 100%;
}
.login-turnstile-widget {
  width: 100%;
  min-height: 65px;
}
.login-turnstile-widget iframe {
  max-width: 100%;
}
.login-turnstile-msg {
  margin: 0;
  color: #b45309;
  font-size: 12px;
  font-weight: 700;
}
.login-turnstile-retry {
  width: 100%;
  border-color: #cbd5e1;
  color: #0f172a;
}
.login-brand {
  display: flex;
  gap: 11px;
  align-items: center;
  padding-bottom: 8px;
  border-bottom: 1px solid #e2e8f0;
}
.brand-logo {
  width: 44px;
  height: 44px;
  object-fit: contain;
}
.login-brand strong { display: block; font-size: 16px; }
.login-brand span { display: block; margin-top: 3px; color: #657386; font-size: 12px; }
.login-message { min-height: 20px; margin: 0; color: #dc2626; font-weight: 700; }
.force-change-card h2 { margin: 0 0 6px; font-size: 20px; color: #0f172a; }
.force-change-card .muted { margin: 0; color: #657386; }
.button {
  min-height: 36px;
  border-radius: 6px;
  border: 1px solid transparent;
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 600;
  background: #fff;
}
.button.primary { background: #2563eb; border-color: #2563eb; color: #fff; }
.button.primary:hover { background: #1d4ed8; }
input:focus, button:focus-visible {
  outline: 3px solid #bfdbfe;
  outline-offset: 1px;
}